Rotary armrest structure

Abstract

According to the rotating armrest structure provided by the utility model, the armrest arm is rotatably mounted between the connecting part and the armrest part, and the parallelogram-type connecting rod mechanism is hinged between the connecting part and the armrest part, so that the armrest arm can rotate under the limiting action of the connecting rod mechanism; and when the armrest arm rotates around the connecting part, the armrest part can be driven to keep a horizontal state for lifting adjustment, so that the technical problems that the height of the armrest of the chair in the prior art cannot be adjusted, the armrest cannot effectively support the elbows when the sitting posture of the user is changed, for example, the user lies down, and the comfort is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of chair armrests, in particular to a rotating armrest structure. Background Art

[0002] As a common piece of furniture, chairs are widely used in office and daily life. In order to improve the comfort and safety of use, chairs are provided with armrests as above.

[0003] Chinese patent CN01124804.1 discloses an armrest for a chair, armchair, or similar chair, and a chair using the armrest, wherein the armrest includes a support column and an armrest body connected to the upper end of the support column and defining a longitudinal direction of the armrest, wherein the armrest body rotates about a first vertical axis and can assume different tilt positions about the first vertical axis, and can be positioned at different operating angles in a transverse direction relative to the longitudinal direction of the armrest and relative to the support column, wherein the armrest body is mounted on an intermediate support member connected to the support column of the armrest, the armrest body is rotatably mounted about the first vertical axis on the intermediate support member, and the intermediate support member is mounted on the support column so that the intermediate support member can pivot in a transverse direction and a horizontal direction relative to the longitudinal direction of the armrest, and means are provided between the armrest body and the intermediate support member for defining a non-rotating neutral position of the armrest body and at least two extreme tilt positions of the armrest body in opposite directions of rotation about the first vertical axis; and the intermediate support member includes a connecting member that cooperates with an elastic clamp connected to the armrest body to define the operating angle positions of the armrest body about the first axis.

[0004] However, in the existing technical solutions, the height of the chair armrests is usually not adjustable, so when the user's sitting posture changes, such as lying down, the armrests cannot provide effective support for the elbows, resulting in poor comfort. Utility Model Content

[0005] The purpose of the utility model is to address the deficiencies of the existing technology and provide a rotating armrest structure. By arranging the armrest arm to be rotatably installed between the connecting part and the armrest part, and hingedly arranging a parallelogram-shaped connecting rod mechanism between the connecting part and the armrest part, it is achieved that under the limiting action of the connecting rod mechanism, when the armrest arm rotates around the connecting part, it can drive the armrest part to maintain a horizontal state for lifting and lowering adjustment, thereby solving the technical problems in the existing technology that the height of the chair armrest is usually unable to be adjusted, resulting in poor comfort when the user's sitting posture changes, such as the armrest cannot provide effective support for the elbow when lying down.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A rotating armrest structure comprises: a connecting portion; an armrest arm, one end of the armrest arm being rotatably mounted on the connecting portion; an armrest portion, the other end of the armrest arm being rotatably mounted on the armrest portion; and a connecting rod mechanism, wherein two hinge points at the upper portion of the connecting rod mechanism are hinged to the armrest portion, and two hinge points at the lower portion of the connecting rod mechanism are hinged to the connecting portion; under the limiting action of the connecting rod mechanism, when the armrest arm rotates around the connecting portion, it drives the armrest portion to maintain a horizontal state and to be raised or lowered.

[0008] Preferably, the line connecting the four hinge points of the connecting rod mechanism is a parallelogram to form a parallelogram connecting rod structure.

[0009] Preferably, the connecting rod mechanism includes: a first connecting rod and a second connecting rod arranged parallel to each other; the upper end of the first connecting rod is hinged to the armrest portion through a hinge point A, and the lower end of the first connecting rod is hinged to the connecting portion through a hinge point B; the upper end of the second connecting rod is hinged to the armrest portion through a hinge point C, and the lower end of the second connecting rod is hinged to the connecting portion through a hinge point D.

[0010] Preferably, the height of the hinge point A is lower than that of the hinge point C, and the height of the hinge point B is lower than that of the hinge point D.

[0011] Preferably, the interior of the armrest is hollow, and the connecting rod mechanism is installed in the hollow space of the armrest.

[0012] Preferably, the armrest portion comprises: an armrest seat, on which the armrest arm is rotatably mounted; and an armrest body, which is horizontally mounted on the upper end surface of the armrest seat.

[0013] Preferably, the armrest seat comprises a left half seat and a right half seat that are arranged opposite to each other, and the armrest arm is rotationally limited and installed between the left half seat and the right half seat.

[0014] The beneficial effects of the present invention are:

[0015] (1) The present invention provides an armrest that is rotatably mounted between the connecting portion and the armrest, and a parallelogram-shaped connecting rod mechanism is hingedly provided between the connecting portion and the armrest. This allows the armrest to maintain a horizontal state and be adjusted up and down when the armrest rotates around the connecting portion under the limiting action of the connecting rod mechanism. The armrest has a large rotation adjustment range and can be adjusted over a wide range, thereby adapting to different sitting posture requirements of users and improving comfort.

[0016] (2) The armrests of the present invention have a large rotation adjustment range and can be adjusted over a wide range to accommodate different sitting postures of users and improve comfort;

[0017] (3) The connecting rod mechanism of the utility model is concealed in the hollow space of the armrest, with beautiful appearance, simple and generous; the armrest is limitedly installed between the left half seat and the right half seat, and the armrest seat rotation installation structure is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For the local structure of the utility model Figure 1 ;

[0020] Figure 3 For the local structure of the utility model Figure 2 ;

[0021] Figure 4 for Figure 1 side view. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0025] Example 1

[0026] like Figure 1-2As shown, a rotating armrest structure includes: a connecting part 1; an armrest arm 2, one end of the armrest arm 2 is rotatably mounted on the connecting part 1; an armrest part 3, the other end of the armrest arm 2 is rotatably mounted on the armrest part 3; and a connecting rod mechanism 4, the two upper hinge points of the connecting rod mechanism 4 are hinged to the armrest part 3, and the two lower hinge points of the connecting rod mechanism 4 are hinged to the connecting part 1; under the limiting action of the connecting rod mechanism 4, when the armrest arm 2 rotates around the connecting part 1, it drives the armrest part 3 to maintain a horizontal state for lifting and lowering.

[0027] In this embodiment, the armrest arm 2 is rotatably installed between the connecting portion 1 and the armrest portion 3, and a parallelogram-shaped connecting rod mechanism 4 is hingedly arranged between the connecting portion 1 and the armrest portion 3. It is achieved that under the limiting action of the connecting rod mechanism 4, when the armrest arm 2 rotates around the connecting portion 1, it can drive the armrest portion 3 to maintain a horizontal state for lifting and lowering adjustment. Through the limiting effect of the connecting rod mechanism 4, the armrest portion 3 can always be maintained in a horizontal state. The structure is simple and ingenious, and the operation is stable and reliable.

[0028] As a preference, Figure 2 As shown, the connecting line of the four hinge points of the connecting rod mechanism 4 is a parallelogram to form a parallelogram connecting rod structure.

[0029] Preferably, the connecting rod mechanism 4 includes: a first connecting rod 41 and a second connecting rod 42 arranged parallel to each other; the upper end of the first connecting rod 41 is hinged to the armrest portion 3 through a hinge point A51, and the lower end of the first connecting rod 41 is hinged to the connecting portion 1 through a hinge point B52; the upper end of the second connecting rod 42 is hinged to the armrest portion 3 through a hinge point C53, and the lower end of the second connecting rod 42 is hinged to the connecting portion 1 through a hinge point D54.

[0030] Preferably, the height of the hinge point A51 is lower than the hinge point C53, and the height of the hinge point B52 is lower than the hinge point D54.

[0031] It is worth noting that the armrests in this application have a large rotation adjustment range and can be adjusted over a wide range to adapt to the user's different sitting posture requirements and improve comfort.

[0032] Example 2

[0033] The same or corresponding components in this embodiment are marked with the same reference numerals as those in the above embodiment. For the sake of simplicity, only the differences from the above embodiment are described below. The differences between this embodiment and the above embodiment are:

[0034] As a preference, Figure 3As shown, the interior of the armrest 2 is hollow, and the connecting rod mechanism 4 is installed in the hollow space of the armrest 2 in a hidden manner, with beautiful appearance, simplicity and elegance.

[0035] As a preference, Figure 1 As shown, the armrest portion 3 includes: an armrest seat 31 , on which the armrest arm 2 is rotatably mounted; and an armrest body 32 , which is horizontally mounted on the upper end surface of the armrest seat 31 .

[0036] As a preference, Figure 4 As shown, the armrest seat 31 includes: a left half seat 311 and a right half seat 312 arranged opposite to each other, the armrest arm 2 is rotationally limited and installed between the left half seat 311 and the right half seat 312, and the rotation installation structure of the armrest seat 31 is stable.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rotating handrail structure, characterized in that: include: A connecting portion (1); A hand arm (2), one end of the hand arm (2) being rotatably mounted on the connecting portion (1); an armrest portion (3), the other end of the armrest arm (2) being rotatably mounted on the armrest portion (3); and A connecting rod mechanism (4), wherein two hinge points at the upper portion of the connecting rod mechanism (4) are hinged to the armrest portion (3), and two hinge points at the lower portion of the connecting rod mechanism (4) are hinged to the connecting portion (1); Under the limiting action of the connecting rod mechanism (4), when the armrest arm (2) rotates around the connecting portion (1), the armrest portion (3) is driven to maintain a horizontal state and to be raised or lowered.

2. A rotating handrail structure according to claim 1, characterized in that: The connecting line of the four hinge points of the connecting rod mechanism (4) is a parallelogram, so as to form a parallelogram connecting rod structure.

3. The rotating armrest structure according to claim 1, characterized in that: The connecting rod mechanism (4) comprises: A first connecting rod (41) and a second connecting rod (42) arranged parallel to each other; The upper end of the first connecting rod (41) is hinged to the armrest portion (3) via a hinge point A (51), and the lower end of the first connecting rod (41) is hinged to the connecting portion (1) via a hinge point B (52); The upper end of the second connecting rod (42) is hinged to the armrest portion (3) via a hinge point C (53), and the lower end of the second connecting rod (42) is hinged to the connecting portion (1) via a hinge point D (54).

4. A rotating armrest structure according to claim 3, characterized in that: The height of the hinge point A (51) is lower than that of the hinge point C (53), and the height of the hinge point B (52) is lower than that of the hinge point D (54).

5. A rotating armrest structure according to any one of claims 1 to 4, characterized in that: The interior of the armrest (2) is hollow, and the connecting rod mechanism (4) is installed in the hollow space of the armrest (2).

6. A rotating armrest structure according to any one of claims 1 to 4, characterized in that: The armrest portion (3) comprises: an armrest seat (31), the armrest arm (2) being rotatably mounted on the armrest seat (31); and An armrest body (32) is horizontally mounted on the upper end surface of the armrest seat (31).

7. A rotating armrest structure according to claim 6, characterized in that: The armrest seat (31) comprises: A left half seat (311) and a right half seat (312) are arranged opposite to each other, and the armrest (2) is rotationally limitedly installed between the left half seat (311) and the right half seat (312).

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