Foldable armrest structure

Abstract

A foldable armrest structure is characterized in that left and right fixing seats are respectively fixed on a base assembly, through holes are respectively formed in the centers of the left and right fixing seats, and two limiting studs are respectively arranged on the outer edges at intervals; a left mounting plate and a right mounting plate are arranged at the ends of the left armrest assembly and the right armrest assembly respectively, and protruding columns are arranged in the middles of the left mounting plate and the right mounting plate outwards and extend into the through holes to be positioned so that the left armrest assembly and the right armrest assembly can rotate around the left fixing base and the right fixing base respectively. The two limiting studs are contained in the two arc-shaped channels respectively, the outer sides of the two limiting studs are locked through the positioning assemblies, it is guaranteed that the left handrail assembly and the right handrail assembly are connected with the left fixing base and the right fixing base and rotate around the left fixing base and the right fixing base, the two limiting studs act relatively in the two arc-shaped channels respectively to limit the rotation angle, and the handrail assembly is simple in structure, flexible to use and small in occupied space.

Description

Technical Field

[0001] The utility model relates to a component of a fitness bike, and specifically relates to a foldable armrest structure. Background Art

[0002] Existing fitness bike seats are usually equipped with left and right armrests. As Figure 1 shown, it includes a base A and an armrest assembly B. The base is fixed to a pedestal assembly C, and the armrest assembly is an integral structure and is fixed to the base.

[0003] The disadvantages of the above structure are as follows:

[0004] 1. Since the armrest assembly is an integral structure and is fixedly arranged, it is easy for users to hit the handrest when getting on or off the seat, making it inconvenient to use.

[0005] 2. The armrest assembly is fixedly arranged integrally. When a user with a large build sits on the seat, the positions of the left and right armrests will squeeze against the body, causing discomfort to the user.

[0006] 3. When not in use, it occupies a large amount of space. Content of the Utility Model

[0007] The purpose of the utility model is to solve the above problems of the existing technology, and provide a foldable armrest structure with a simple structure, flexible use and small occupied space.

[0008] To achieve the above purpose, the technical solution of the utility model is as follows:

[0009] A foldable armrest structure includes a left fixed seat, a right fixed seat, a left armrest assembly, a right armrest assembly and a positioning component that cooperate with each other; wherein, the left fixed seat and the right fixed seat are respectively fixed on the pedestal assembly, through holes are respectively arranged at the centers of the left fixed seat and the right fixed seat, and two limiting studs are respectively arranged at intervals on the outer edges; left mounting plates and right mounting plates are respectively arranged at the ends of the left armrest assembly and the right armrest assembly, convex columns are respectively arranged outward in the middle of the left mounting plate and the right mounting plate and extend into the through holes for positioning to ensure that the left armrest assembly and the right armrest assembly respectively rotate around the left fixed seat and the right fixed seat. Arc-shaped grooves are arranged at the positions where the left mounting plate and the right mounting plate cooperate with the two limiting studs, and the two limiting studs are respectively accommodated in the two arc-shaped grooves and are locked by the positioning component on the outside to ensure that the left armrest assembly and the right armrest assembly are connected to the left fixed seat and the right fixed seat and rotate around the left fixed seat and the right fixed seat. The two limiting studs respectively move relative to each other in the two arc-shaped grooves to limit the rotation angle.

[0010] Further, the left fixed seat and the right fixed seat are semi-circular plates, the through holes are opened at the center positions, one side of the arc is fixed on the pedestal assembly, and the other side extends outward along the center position to form an arc-shaped strengthening part.

[0011] Furthermore, the left and right mounting plates at the ends of the left and right armrest assemblies are shaped to fit the left and right fixed seats. The convex posts are stepped posts. The convex posts extend into the through holes to ensure that the left and right mounting plates are respectively in contact with the left and right fixed seats, and the first-stage convex posts extend outside the through holes. Threads are provided on the first-stage convex posts, and nuts and flat washers are screwed and positioned from the outside.

[0012] Furthermore, the positioning assembly includes nuts and flat washers, and the positioning assembly is screwed tightly onto the two limit studs from the outside of the left and right mounting plates.

[0013] After adopting the above scheme, compared with the prior art, the left and right armrest assemblies of the present utility model are separately arranged and can be rotated and folded respectively around the left and right fixed seats, ensuring that users are not easily hit by the armrests when getting on or off the seat cushion, making it more convenient to use. It also meets the requirement that when a user with a large build sits on the seat cushion, the position of the armrest will not squeeze the body part to ensure comfort. And when not in use, it can be folded, occupying less space. Description of the Drawings

[0014] Figure 1 is a schematic diagram of the prior art structure of the present utility model;

[0015] Figure 2 is an exploded structure schematic diagram of the present utility model;

[0016] Figure 3 is an assembly schematic diagram of the present utility model;

[0017] Figure 4 is an operation schematic diagram of the present utility model. Detailed Description of the Invention

[0018] In order to further explain the technical solution of the present utility model, the present utility model will be elaborated in detail through specific embodiments below.

[0019] Such as Figures 2-4As shown in the figure, a foldable armrest structure includes a left fixed seat 1, a right fixed seat 2, a left armrest assembly 3, a right armrest assembly 4 and a positioning component 5 which cooperate with each other. Among them, the left fixed seat 1 and the right fixed seat 2 are respectively fixed on the base assembly 6. Through holes 11 and 21 are respectively provided at the centers of the left fixed seat 1 and the right fixed seat 3, and two limit studs 12 and 22 are respectively provided at intervals on the outer edges. Left mounting plates 31 and right mounting plates 41 are respectively provided at the ends of the left armrest assembly 3 and the right armrest assembly 4. Convex columns 32 and 42 (not shown in the figure) are respectively provided outwardly in the middle of the left mounting plate 31 and the right mounting plate 41 and extend into the through holes 11 and 21 to position and ensure that the left armrest assembly 3 and the right armrest assembly 4 respectively rotate around the left fixed seat 1 and the right fixed seat 2. Arc-shaped channels 311 and 411 are provided at the positions where the left mounting plate 31 and the right mounting plate 41 cooperate with the two limit studs 12 and 22. The two limit studs 12 and 22 are respectively accommodated in the two arc-shaped channels 311 and 411 and are locked by the positioning component 5 on the outside, ensuring that the left armrest assembly 3 and the right armrest assembly 4 are connected to the left fixed seat 1 and the right fixed seat 2 and rotate around the left fixed seat 1 and the right fixed seat 2. The two limit studs 12 and 22 respectively move relative to each other in the two arc-shaped channels 311 and 411 to limit the rotation angle.

[0020] Furthermore, the left fixed seat 1 and the right fixed seat 2 are semi-circular plates. The through holes 11 and 21 are opened at the center positions. One side of the arc is fixed on the base assembly, and the other side extends outward along the center position to form arc-shaped strengthening parts 13 and 23.

[0021] Furthermore, the shapes of the left mounting plates 31 and the right mounting plates 41 at the ends of the left armrest assembly 3 and the right armrest assembly 4 are adapted to the left fixed seat 1 and the right fixed seat 2. The convex columns 32 and 42 extend into the through holes 11 and 21 to ensure that the left mounting plate 31 and the right mounting plate 41 respectively fit with the left fixed seat 1 and the right fixed seat 2, and the first-stage convex columns 321 and 421 (not shown in the figure) extend out of the through holes 11 and 21. Threads are provided on the first-stage convex columns, and nuts and flat washers are screwed and positioned from the outside.

[0022] Furthermore, the positioning component 5 includes a nut 51 and a flat washer 52. The positioning component 5 is screwed tightly on the two limit studs 12 and 22 from the outside of the left mounting plate 31 and the right mounting plate 41.

[0023] During assembly, first fix the left fixed seat and the right fixed seat on the base assembly with a certain distance in the middle, and then connect the left armrest assembly and the right armrest assembly to the left fixed seat and the right fixed seat respectively, place the limit studs into the limit channels, and screw the nuts and flat washers tightly from the other side. The left and right armrest assemblies are separately arranged and can be rotated and folded around the left and right fixed seats respectively, ensuring that users are not easily hit by the armrests when getting on or off the seat cushion, and making it more convenient to use. It also meets the requirement that when a user with a large build sits on the seat cushion, the armrest position will not squeeze the body part to ensure comfort. And when not in use, it can be folded, occupying a small space.

[0024] The foregoing description illustrates and describes preferred embodiments of the present utility model. As previously mentioned, it should be understood that the present utility model is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in related fields. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present utility model shall fall within the protection scope of the appended claims of the present utility model.

Claims

1. A foldable armrest structure, characterized in that: It includes a mutually cooperating left fixing seat, a right fixing seat, a left armrest assembly, a right armrest assembly and a positioning component; wherein, the left fixing seat and the right fixing seat are respectively fixed on the base assembly, through holes are respectively provided in the centers of the left fixing seat and the right fixing seat, and two limiting studs are respectively provided at intervals on the outer edges; left mounting plates and right mounting plates are respectively provided at the ends of the left armrest assembly and the right armrest assembly, and convex columns are respectively provided outward in the middle of the left mounting plate and the right mounting plate and extend into the through holes for positioning to ensure that the left armrest assembly and the right armrest assembly respectively rotate around the left fixing seat and the right fixing seat. Arc-shaped channels are provided at the positions where the left mounting plate and the right mounting plate cooperate with the two limiting studs. The two limiting studs are respectively accommodated in the two arc-shaped channels and are locked by the positioning component on the outside, ensuring that the left armrest assembly and the right armrest assembly are connected to the left fixing seat and the right fixing seat and rotate around the left fixing seat and the right fixing seat. The two limiting studs respectively move relative to each other in the two arc-shaped channels to limit the rotation angle.

2. The foldable armrest structure according to claim 1, characterized in that: The left fixing seat and the right fixing seat are semi-circular plates, the through holes are opened at the center positions, one side of the arc is fixed on the base assembly, and the other side extends outward along the center position to form an arc-shaped strengthening part.

3. The foldable armrest structure according to claim 1, characterized in that: The shapes of the left mounting plate and the right mounting plate at the ends of the left armrest assembly and the right armrest assembly are adapted to the left fixing seat and the right fixing seat. The convex column is a stepped column. The convex column extends into the through hole to ensure that the left mounting plate and the right mounting plate are respectively attached to the left fixing seat and the right fixing seat, and the first-stage convex column extends out of the through hole. Threads are opened on the first-stage convex column, and the nut and the flat washer are screwed and positioned from the outside.

4. A foldable armrest structure according to claim 1, 2 or 3, characterized in that: The positioning component includes a nut and a flat washer, and the positioning component is screwed tightly on the two limiting studs from the outside of the left mounting plate and the right mounting plate.

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