Handrail rotating shaft

Abstract

The utility model provides a kind of handrail rotating shaft, belong to handrail field.It solves the angle adjustment of traditional seat handrail to be completed by multiple linkage components cooperation, relatively complex structure, and cannot realize the problem of quick adjustment, the utility model includes handrail support and the fixed seat of being mutually hinged with handrail support, it is characterized in that, the fixed shaft of only fixed connection is provided on the fixed seat, a plurality of teeth for clamping are provided on the fixed shaft, the slot hole for being cooperated with fixed shaft is set up on the handrail support, recess is set up on the one side of slot hole, the sliding block matched with tooth is set in the recess, fixed platform is set on the slot hole, the limiting portion of being cooperated with tooth is set to a plurality of limiting portions of being cooperated with tooth in the fixed platform lower end.

Description

Technical Field

[0001] This utility model belongs to the field of handrails, and specifically relates to a handrail rotating shaft. Background Technology

[0002] Armrests are components on seats used to support the arms. In daily use, different people use armrests at different angles. Traditional seat armrests often use multiple linked components to work together to adjust the angle of the armrest, which is relatively complex and cannot achieve quick adjustment. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a handrail rotation shaft.

[0004] The purpose of this utility model can be achieved through the following technical solution: a handrail rotating shaft, including a handrail bracket and a fixed seat hinged to the handrail bracket, characterized in that the fixed seat is provided with a fixed shaft fixedly connected to it, the fixed shaft is provided with a plurality of teeth for engaging, the handrail bracket is provided with a slot for engaging with the fixed shaft, a groove is provided on one side of the slot, and a sliding block is provided in the groove for engaging with the teeth; A fixed platform is provided above the slot, and several limiting parts that mutually limit and cooperate with the teeth are provided at the lower end of the fixed platform.

[0005] In the aforementioned handrail rotating shaft, the fixed platform is arc-shaped on the side opposite to the fixed shaft and is semi-enclosed to the fixed shaft, and the limiting parts are arranged at equal intervals along the arc-shaped surface.

[0006] In the aforementioned handrail rotating shaft, an elastic element is provided between the sliding block and the groove. One end of the elastic element is connected to the bottom of the groove, and the other end is connected to the sliding block.

[0007] In the aforementioned handrail rotating shaft, the slot can slide back and forth along the fixed shaft.

[0008] In the aforementioned handrail rotating shaft, the side of the sliding block that engages with the teeth is in the shape of a plate arc.

[0009] Compared with existing technologies, the rotating shaft of this handrail achieves angle adjustment through a simple structure, making operation simple and quick. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the main body of the armrest's rotating axis; Figure 2 This is a cross-sectional view of the rotating shaft of this handrail; Figure 3 This is a partial view of the rotating axis of the handrail.

[0011] In the diagram, 1 is the handrail support; 2 is the fixed base; 3 is the fixed shaft; 4 is the tooth; 5 is the slot; 6 is the groove; 7 is the sliding block; 8 is the fixed platform; 9 is the limiting part; and 10 is the elastic element. Detailed Implementation

[0012] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0013] like Figure 1 , Figure 2 , Figure 3 As shown, the handrail rotation shaft includes a handrail bracket 1 and a fixed seat 2 that is hinged to the handrail bracket 1. The fixed seat 2 is provided with a fixed shaft 3 that is fixedly connected to it. The fixed shaft 3 is provided with a plurality of teeth 4 for engaging. The handrail bracket 1 is provided with a slot 5 for engaging with the fixed shaft 3. A groove is provided on one side of the slot 5, and a sliding block 7 that engages with the teeth 4 is provided in the groove. A fixed platform 8 is provided above the slot, and several limiting parts 9 are provided at the lower end of the fixed platform 8 to limit and cooperate with the teeth 4.

[0014] During use, lift the armrest bracket 1 upwards and rotate the armrest bracket 1 so that the teeth 4 and the sliding block 7 cooperate with each other. The sliding block 7 will reciprocate and extend until it is adjusted to a suitable angle. Then, maintain the armrest angle and push the armrest bracket 1 downwards so that the teeth 4 and the limiting part 9 engage with each other, thereby completing the locking.

[0015] To elaborate further, the side of the fixed platform 8 opposite to the fixed shaft 3 is arc-shaped and semi-encloses the fixed shaft 3, with the limiting parts 9 arranged at equal intervals along the arc-shaped surface.

[0016] To elaborate further, an elastic element 10 is provided between the sliding block 7 and the groove. One end of the elastic element 10 is connected to the bottom of the groove, and the other end is connected to the sliding block 7.

[0017] To elaborate further, the slot 5 can slide back and forth along the fixed shaft 3.

[0018] To elaborate further, the side of the sliding block 7 that mates with the tooth 4 is in the shape of a plate arc, which facilitates the mating between the tooth 4 and the sliding block 7.

[0019] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0020] Although this document frequently uses terms such as handrail bracket 1, fixing seat 2, fixing shaft 3, tooth 4, slot 5, groove, sliding block 7, fixing platform 8, limiting part 9, and elastic element 10, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A handrail rotation shaft, comprising a handrail bracket (1) and a fixed base (2) hinged to the handrail bracket (1), characterized in that, The fixed base (2) is provided with a fixed shaft (3) that is fixedly connected to it. The fixed shaft (3) is provided with a number of teeth (4) for locking. The handrail bracket (1) is provided with a slot (5) for cooperating with the fixed shaft (3). A groove (6) is provided on one side of the slot (5). A sliding block (7) that cooperates with the teeth (4) is provided in the groove (6). A fixed platform (8) is provided above the slot, and a number of limiting parts (9) that are mutually limiting and cooperating with the teeth (4) are provided at the lower end of the fixed platform (8).

2. The handrail rotating shaft according to claim 1, characterized in that, The fixed platform (8) is arc-shaped on the side opposite to the fixed shaft (3) and is semi-enclosed to the fixed shaft (3). The limiting parts (9) are arranged at equal intervals along the arc surface.

3. The handrail rotating shaft according to claim 1, characterized in that, An elastic element (10) is provided between the sliding block (7) and the groove (6). One end of the elastic element (10) is connected to the bottom of the groove (6), and the other end is connected to the sliding block (7).

4. The handrail rotating shaft according to claim 1, characterized in that, The slot (5) can slide back and forth along the fixed shaft (3).

5. A handrail rotating shaft according to claim 1, characterized in that, The side of the sliding block (7) that engages with the tooth (4) is in the shape of a plate arc.

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