CN209883554U

CN209883554U - Armrest structure of office chair

Info

Publication number: CN209883554U
Application number: CN201920209308.5U
Authority: CN
Inventors: 严冬平
Original assignee: Foshan Xinaoda Plastic Hardware Products Co Ltd
Current assignee: Foshan Xinaoda Plastic Hardware Products Co Ltd
Priority date: 2019-02-19
Filing date: 2019-02-19
Publication date: 2020-01-03
Anticipated expiration: 2029-02-19

Abstract

The utility model provides a handrail structure of an office chair, which comprises a handrail upright post component and a handrail panel component, wherein the handrail panel component is arranged at the upper end of the handrail upright post component; the handrail panel component comprises a rotary adjusting piece and a rotary groove for accommodating the rotary adjusting piece, the rotary adjusting piece is fixedly connected with the handrail upright post component, the rotary groove is matched with the rotary adjusting piece, the rotary adjusting piece can rotate in the rotary groove, and a first clamping component which is matched with the rotary groove is arranged between the rotary adjusting piece and the rotary groove; the first clamping assembly comprises at least two concave positions arranged on the edge of the rotary adjusting piece and at least one convex block arranged on the rotary groove, and the convex block is opposite to the edge of the rotary adjusting piece; a first elastic piece is arranged between the lug and the rotating groove and is arranged at one end, far away from the rotating adjusting piece, of the lug. The armrest structure of the office chair of the utility model can be adjusted towards the angle, and is suitable for users with different shapes.

Description

Armrest structure of office chair

Technical Field

The utility model relates to a technical field of office chair especially relates to a handrail structure of office chair.

Background

In the prior art, the orientation angle of the armrest structure of the office chair cannot be adjusted, and the armrest structure with a fixed orientation angle cannot provide good hand support for users with different body shapes.

Thus, there is still a need for improvement and development of the prior art.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides an office chair's handrail structure, handrail structure's orientation angle can be adjusted, is applicable to the user of different bodily forms.

The technical scheme of the utility model as follows:

an armrest structure of an office chair comprises an armrest upright post component and an armrest panel component, wherein the armrest panel component is arranged at the upper end of the armrest upright post component;

the handrail panel component comprises a rotary adjusting piece and a rotary groove for accommodating the rotary adjusting piece, the rotary adjusting piece is fixedly connected with the handrail upright post component, the rotary groove is matched with the rotary adjusting piece, the rotary adjusting piece can rotate in the rotary groove, and a first clamping component which is matched with the rotary groove is arranged between the rotary adjusting piece and the rotary groove;

the first clamping assembly comprises at least two concave positions arranged on the edge of the rotary adjusting piece and at least one convex block arranged on the rotary groove, and the convex block is opposite to the edge of the rotary adjusting piece; and a first elastic piece is arranged between the lug and the rotating groove and is arranged at one end of the lug, which is far away from the rotating adjusting piece.

The armrest structure of the office chair is characterized in that the number of the concave positions is three, and the three concave positions are equidistantly arranged on the edge of the rotary adjusting piece.

The armrest structure of the office chair is characterized in that the concave positions are arranged into two groups, each group comprises three concave positions, the three concave positions in each group are distributed at equal intervals, and the two groups of concave positions are symmetrically arranged on the edges of two ends of the rotary adjusting piece; the convex blocks are arranged in two numbers, the two convex blocks are symmetrically arranged in the rotating groove, and one convex block corresponds to one group of concave positions.

The armrest structure of the office chair is characterized in that the first elastic piece is elastic silica gel.

The armrest structure of the office chair, wherein the armrest column component also comprises a height adjusting component for adjusting the height of the armrest.

The armrest structure of office chair, wherein, the altitude mixture control subassembly includes stand connecting piece, stand part, the upper end and the rotation regulation spare fixed connection of stand connecting piece, be equipped with the spout that matches with the stand connecting piece in the stand part, the spout extends along the length direction of stand part, the stand connecting piece can slide in the spout.

The armrest structure of the office chair is characterized in that a second clamping component which is matched with the upright post connecting piece is arranged between the upright post connecting piece and the upright post part.

The second clamping component comprises a poking connecting piece, a clamping bead and clamping positions distributed along the length direction of the sliding groove; the shifting connecting piece is arranged in the upright post connecting piece and can slide along the length direction of the upright post connecting piece; the side surface of the upright post connecting piece is provided with a clamping hole, the diameter of the clamping hole is smaller than that of the clamping bead, and the clamping bead is arranged in the clamping hole; the clamping position is matched with the part of the clamping bead protruding out of the clamping hole; an inclined plane is arranged on the side surface of the toggle connecting piece opposite to the clamping hole.

The utility model has the advantages that: the utility model provides an armrest structure of office chair, armrest structure's orientation angle can be adjusted, is applicable to the user of different bodily forms.

Drawings

Fig. 1 is a schematic structural view of an office chair with the armrest structure of the present invention.

Fig. 2 is a schematic view of the armrest structure of fig. 1.

Fig. 3 is a top view of the arm panel assembly with the arm rest housing removed.

Fig. 4 is a partially enlarged view of fig. 3 at a.

Fig. 5 is a top view of the arm panel assembly as it is angularly adjusted in orientation.

Fig. 6 is a partially enlarged view at B of fig. 5.

Fig. 7 is an internal structural view of the armrest pillar assembly.

Fig. 8 is a schematic view of the toggle linkage moving upward.

Description of reference numerals: 100. a handrail column assembly; 110. a column connector; 111. shifting the connecting piece; 112. clamping the beads; 113. a clamping hole; 114. a bevel; 115. a second elastic member; 120. a column part; 121. a chute; 122. clamping; 200. an armrest panel assembly; 211. a handrail panel body; 221. rotating the adjusting member; 222. a concave position; 223. a rotating tank; 224. a bump; 225. a first elastic member.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

As shown in fig. 1 and 2, the present invention provides an armrest structure for an office chair, which comprises an armrest column assembly 100 and an armrest panel assembly 200, wherein the armrest panel assembly 200 is disposed at the upper end of the armrest column assembly 100.

As shown in FIG. 3 ~ 6, in order to adjust the orientation angle of the armrest, the armrest panel assembly 200 includes a rotation adjusting member 221 and a rotation groove 223 for accommodating the rotation adjusting member 221. the rotation adjusting member 221 is fixedly connected to the armrest column assembly 100, the rotation groove 223 is matched with the rotation adjusting member 221, and the rotation adjusting member 221 can rotate in the rotation groove 223. in the present invention, the orientation angle of the armrest refers to the pointing angle of the end of the armrest panel assembly 200 in the horizontal plane.

Specifically, the arm panel assembly 200 further includes an arm panel body including an arm panel main body 211, an arm housing. The rotation groove 223 is provided in the arm panel body 211, the rotation adjusting member 221 is provided in the rotation groove 223 of the arm panel body 211, and the arm rest housing, which is a plastic housing, is provided outside the arm panel body 211.

Further, in order to prevent the armrest panel assembly 200 from being easily changed after the orientation angle adjustment, a first locking assembly is provided between the rotation adjuster 221 and the rotation groove 223 to be engaged with each other.

Specifically, the first detent assembly includes at least two recesses 222 provided at an edge of the rotation adjuster 221, at least one projection 224 provided at the rotation groove 223, the projection 224 being opposite to the edge of the rotation adjuster 221; a first elastic member 225 is disposed between the projection 224 and the rotation groove 223, and the first elastic member 225 is disposed at an end of the projection 224 away from the rotation adjuster 221. When the arm panel assembly 200 is rotated clockwise or counterclockwise, the rotation slot 223 and the protrusion 224 also rotate clockwise or counterclockwise, because the rotation adjusting member 221 is fixedly connected to the arm post assembly 100, the rotation slot 223 and the protrusion 224 rotate relative to the rotation adjusting member 221, the protrusion 224 moves from one concave position 222 to the next concave position 222 in the rotation adjusting member 221, and when the protrusion 224 moves, the first elastic member 225 is in a compressed state, and after the protrusion 224 moves to the next concave position 222, the first elastic member 225 is reset under the elastic restoring force, the protrusion 224 is pushed into the next concave position 222 by the first elastic member 225, so that the orientation angle of the arm panel body changes, when the orientation angle of the arm panel bodies of the left and right arm structures of the office chair changes, that is, when the left and right arm panel bodies rotate symmetrically (for example, the armboard body on the left side of the office chair rotates clockwise, the armboard body on the right side of the office chair rotates anticlockwise), the front ends of the left and right armboard bodies are close to or away from each other, the supporting positions of the left and right armboard bodies are changed, and the armrest structure is suitable for users with different body shapes.

Specifically, as one embodiment, three recesses 222 are provided, and the three recesses 222 are equidistantly disposed on the edge of the rotation adjusting member 221.

Specifically, as another embodiment, the concave locations 222 are arranged in two groups, each group includes three concave locations 222, the three concave locations 222 are distributed at equal intervals, and the two groups of concave locations 222 are symmetrically arranged on the edges of the two ends of the rotation adjusting member 221; the two protrusions 224 are symmetrically disposed in the rotation groove 223, and one protrusion 224 corresponds to one set of the concave portions 222. The two protrusions 224 and the two sets of recesses 222 are symmetrically arranged, so that the engagement between the rotation adjusting member 221 and the rotation groove 223 is more reliable.

Preferably, the first elastic member 225 is elastic silicone rubber.

Further, as shown in fig. 7 and 8, in order to make the height of the armrest adjustable, the armrest column assembly 100 further includes a height adjustment assembly.

Specifically, the height adjustment assembly includes a column connector 110, a column section 120. The upper end of the upright post connecting piece 110 is fixedly connected with the rotating adjusting piece 221, a sliding groove 121 matched with the upright post connecting piece 110 is arranged in the upright post part 120, the sliding groove 121 extends along the length direction of the upright post part 120, and the upright post connecting piece 110 can slide in the sliding groove 121, so that the height of the handrail panel component 200 can be adjusted.

Further, in order to prevent the height of the arm panel assembly 200 from being changed after the height adjustment, a second locking assembly is provided between the pillar connector 110 and the pillar member 120.

Specifically, the second detent assembly includes a toggle connector 111, a detent ball 112, and detents 122 distributed along the length of the slide slot 121. The toggle connecting piece 111 is arranged in the upright post connecting piece 110 and can slide along the length direction of the upright post connecting piece 110; a clamping hole 113 is formed in the side face of the upright post connecting piece 110, the diameter of the clamping hole 113 is smaller than that of the clamping bead 112, and the clamping bead 112 is arranged between the inner wall of the upright post connecting piece 110 and the toggle connecting piece 111 and is clamped in the clamping hole 113; the position limit position 122 matches with the part of the clamping bead 112 protruding out of the clamping hole 113; an inclined plane 114 is arranged on the side surface of the toggle connecting piece 111 opposite to the clamping hole 113, the inclined plane 114 comprises a wide end and a narrow end, the wide end means that the distance from the inclined plane 114 to the inner wall of the upright post connecting piece 110 is the widest, the narrow end means that the distance from the inclined plane 114 to the inner wall of the upright post connecting piece 110 is the narrowest, and the distance from the inclined plane 114 to the inner wall of the upright post connecting piece 110 is gradually increased from the narrow end to the wide end. When the height of the handrail is fixed, the connecting piece 111 is shifted to slide to the position where the narrow end is opposite to the clamping hole 113, so that the clamping bead 112 is clamped between the narrow end and the clamping hole 113, and the part of the clamping bead 112 protruding out of the clamping hole 113 is matched with the clamping position 122, so that the upright post connecting piece 110 is fixed and cannot slide along the sliding groove 121; when the height of the handrail needs to be adjusted, the toggle connecting piece 111 slides to the position where the wide end is opposite to the clamping hole 113, because the distance from the wide end to the clamping hole 113 is increased, the clamping bead 112 can move between the wide end and the clamping hole 113, so that the clamping bead 112 cannot protrude out of the clamping hole 113, the matching state of the clamping bead 112 and the clamping position 122 is released, the upright post connecting piece 110 can slide along the sliding groove 121, and the relative position of the upright post connecting piece 110 and the upright post part 120 is changed, so that the height of the handrail is adjusted.

Furthermore, in order to ensure that the position of the toggle connecting piece 111 is not easy to change when the height of the handrail is fixed, the fixing effect is more reliable, a second elastic member 115 is provided between the pillar connecting member 110 and the toggle connecting member 111, in a normal state, the toggle connecting element 111 is under the action of the second elastic element 115, the narrow end is kept at a position opposite to the clamping hole 113, thereby ensuring the matching state of the clamping bead 112 and the clamping position 122, when the toggle connecting piece 111 is pulled manually, the relative position of the toggle link 111 and the post link 110 is changed, the second elastic member 115 is compressed or stretched, when the toggle connecting piece 111 is pulled to the position where the wide end is opposite to the clamping hole 113, the height of the handrail can be adjusted, and after the toggle connecting piece 111 is released, the toggle connecting element 111 is reset under the elastic restoring force of the second elastic element 115, the clamping ball 112 is clamped in the clamping hole 113 again, and the clamping ball 112 and the clamping position 122 restore the matching state. Specifically, the second elastic member 115 is a spring.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.

Claims

1. The armrest structure of the office chair is characterized by comprising an armrest upright post component and an armrest panel component, wherein the armrest panel component is arranged at the upper end of the armrest upright post component;

2. An armrest structure for an office chair as claimed in claim 1, wherein said recesses are provided in three, three being equidistantly provided at the edge of the rotary adjustment member.

3. The armrest structure of an office chair as claimed in claim 1, wherein the recessed positions are provided in two groups, each group comprising three recessed positions, the three recessed positions in each group being equidistantly distributed, the two groups of recessed positions being symmetrically provided at edges of both ends of the rotation adjusting member; the convex blocks are arranged in two numbers, the two convex blocks are symmetrically arranged in the rotating groove, and one convex block corresponds to one group of concave positions.

4. The armrest structure of an office chair as claimed in claim 1, wherein the first elastic member is elastic silicone rubber.

5. The armrest structure of an office chair as claimed in claim 1, wherein the armrest pillar assembly further comprises a height adjustment assembly for adjusting the height of the armrest.

6. The armrest structure of an office chair as claimed in claim 5, wherein the height adjustment assembly comprises a post connecting member and a post member, the upper end of the post connecting member is fixedly connected with the rotation adjustment member, a sliding slot matched with the post connecting member is arranged in the post member, the sliding slot extends along the length direction of the post member, and the post connecting member can slide in the sliding slot.

7. An armrest structure for an office chair as claimed in claim 6, wherein a second detent assembly is provided between the post link and the post member for cooperation therewith.

8. The armrest structure of an office chair as claimed in claim 7, wherein the second detent assembly comprises a toggle connector, a detent bead, detents distributed along the length of the chute; the shifting connecting piece is arranged in the upright post connecting piece and can slide along the length direction of the upright post connecting piece; the side surface of the upright post connecting piece is provided with a clamping hole, the diameter of the clamping hole is smaller than that of the clamping bead, and the clamping bead is arranged in the clamping hole; the clamping position is matched with the part of the clamping bead protruding out of the clamping hole; an inclined plane is arranged on the side surface of the toggle connecting piece opposite to the clamping hole.