CN215533033U - Assembled chair armrest - Google Patents

Abstract

The utility model provides an assembled chair armrest, which comprises an armrest support, an armrest cushion body, a connecting body and a connecting mechanism, wherein the armrest support is arranged on the armrest support; wherein the armrest cushion body is provided with a containing groove with a downward opening, and the containing groove has a depth and a shape; wherein the connecting body has a thickness and a shape which are correspondingly matched with the depth and the shape of the accommodating groove of the armrest cushion body, so that the connecting body can be assembled and positioned in the accommodating groove in an embedded manner; wherein the armrest support and the connecting body can be mutually connected by the connection relationship of the connecting mechanism; when the chair armrest is assembled, the armrest support is mutually connected with the connecting body through the connecting mechanism, and the armrest cushion body is assembled into a whole through the connecting body and the armrest support in a matching mode, so that the cost is reduced.

Description

Assembled chair armrest

Technical Field

The utility model relates to a chair armrest, in particular to a fabricated chair armrest which can effectively solve the problem that the types of armrest supports matched with an armrest cushion body of the conventional chair armrest are limited.

Background

Referring to fig. 12 and 13 of the drawings, a conventional chair armrest 1 is mostly formed by assembling an armrest pad 20 and an armrest support 2, the armrest pad 20 is located on a top surface 2a of the armrest support 2, and for the purpose of assembly, in the prior art, at least two locking holes 24 are preset between the armrest pad 20 and the armrest support 2, and locking components such as screws 2b are used for locking and assembling. However, if the armrest support 2 does not have locking components or related structures that are correspondingly matched with the locking holes 24, the types of the armrest supports that the armrest pad 20 of the existing chair armrest 1 can be matched with are limited, and a new armrest pad must be developed and produced at the manufacturing end to match the armrest support that is not combined by using the locking components, which is not beneficial to reducing the cost of the manufacturing end.

From the above, an assembled chair armrest which can be combined by an armrest cushion body and an armrest support which needs to be combined by using locking components and can be combined by using an armrest support which does not use locking components is greatly expected by related industries at present.

SUMMERY OF THE UTILITY MODEL

The main objective of the present invention is to provide an assembled chair armrest, wherein an armrest pad of the chair armrest is provided with a receiving slot with a downward opening, and the receiving slot has a depth and a shape; wherein a connecting body of the chair armrest has a thickness and a shape, and the thickness and the shape are correspondingly matched with the depth and the shape of the accommodating groove of the armrest cushion body, so that the connecting body can be assembled and positioned in the accommodating groove in an embedded manner; wherein, an armrest support of the chair armrest and the connecting body can be mutually connected by the connection relationship of the connecting mechanism, so as to effectively solve the problem that the types of the armrest supports matched with the armrest cushion body of the prior chair armrest are limited.

To achieve the above object, the present invention provides an assembly type chair armrest, which comprises an armrest support, an armrest pad, a connecting body and a connecting mechanism; wherein the top of the armrest support comprises a support top surface; wherein the armrest cushion body is arranged on the top surface of the bracket of the armrest bracket, the bottom surface of the armrest cushion body is provided with a containing groove with a downward opening, and the containing groove has a depth and a shape and comprises an inner bottom surface and a wall surface of the containing groove; the connecting body is arranged between the armrest support and the armrest cushion body, and has a thickness and a shape which are correspondingly matched with the depth and the shape of the accommodating groove of the armrest cushion body, so that the connecting body can be assembled in an embedded manner and positioned in the accommodating groove; when the chair armrest is assembled, the armrest support is mutually connected with the connecting body by virtue of the connection relationship of the connecting mechanism, and the armrest cushion body is assembled into a whole by virtue of the connecting body and the armrest support in a matching way, so that the problem that the types of the armrest support matched with the armrest cushion body of the existing chair armrest are limited is effectively solved, and the cost is favorably reduced.

In a preferred embodiment of the present invention, the connecting mechanism comprises a first connecting portion and a second connecting portion capable of forming a vertical connection relationship with each other, the first connecting portion and the second connecting portion are respectively disposed on corresponding positions of the armrest support or the connecting body; wherein the first connecting part is formed by a lock head with a vertical thickness and a lock neck which is connected and arranged on one surface of the lock head; wherein the second connecting part is formed by a lock hole and a lock groove with a vertical depth which are communicated with each other and arranged at the inner side of the lock hole; the horizontal cross section shape and the horizontal cross section area of the lock hole correspond to each other and are slightly larger than the horizontal cross section shape and the horizontal cross section area of the lock head, so that the lock head can be vertically embedded into the lock hole and positioned in the lock groove; the horizontal sectional shape and the horizontal sectional area of the lock groove are larger than and comprise the horizontal sectional shape and the horizontal sectional area of the lock head, so that the lock groove can increase at least one stroke area relative to the lock head, and the lock head can be vertically embedded into the lock groove, can horizontally rotate along each stroke area and can be stopped and positioned at a stopping position on each stroke area; when the lock hole is vertically aligned with the lock head, the lock head can be vertically embedded into the lock groove from the lock hole, and a first assembly state is formed between the lock hole and the lock head; when the lock hole and the lock head form the first assembly state, a horizontal staggered angle is formed between a front-back central shaft of the first connecting part and the front-back central shaft of the top surface of the support of the handrail support; when the lock hole and the lock head form the first assembly state, the lock head can rotate horizontally in the lock groove by taking a vertical central shaft of the lock neck as a rotating shaft; when the lock head rotates relatively in the lock groove by the staggered angle until the lock head cannot rotate and stops rotating, the lock head is stopped and positioned at the stopping position on each stroke area, a second assembling state is formed between the lock hole and the lock head, and the armrest cushion body can be assembled and locked with the armrest support into a whole.

In a preferred embodiment of the present invention, the first connecting portion is integrally formed to protrude from the top surface of the armrest support; wherein the second connecting part is arranged on the bottom surface of the connecting body.

In a preferred embodiment of the present invention, the first connecting portion is integrally formed and protruded on the bottom surface of the connecting body; wherein the second connecting part is arranged on the top surface of the handrail bracket.

In a preferred embodiment of the present invention, the connecting mechanism includes at least one first connecting portion and at least one second connecting portion capable of forming a corresponding pressing and fastening relationship in an up-down direction, each of the first connecting portions and each of the second connecting portions are respectively disposed on the top surface of the bracket or corresponding positions of the connecting body, each of the first connecting portions is a shaft tube, each of the second connecting portions is a shaft sleeve, each of the shaft tubes has a first fastening portion, each of the shaft sleeves has a second fastening portion corresponding to each of the first fastening portions, and each of the shaft tubes can be fastened to each other by means of the first fastening portion and the second fastening portion of each of the shaft sleeves; the second buckling part of each shaft sleeve is positioned on an inner ring wall surface in each shaft sleeve.

In a preferred embodiment of the present invention, each of the sleeves further comprises a packing member, each of the packing members is located on the connecting body and located at an upper portion of each of the sleeves, each of the packing members comprises at least two packing pieces; wherein the first buckling part of each shaft tube is positioned on the end surface of each shaft tube; when the first buckling parts and the second buckling parts are buckled with each other, the first buckling parts of the shaft tubes are pressed by the compression stress of the at least two packing pieces of the packing pieces, so that the first buckling parts are pressed and clamped into the second buckling parts.

In a preferred embodiment of the present invention, each of the first connecting portions is integrally formed to protrude from the top surface of the armrest support; wherein each second connecting part is arranged on the bottom surface of the connecting body.

In a preferred embodiment of the present invention, each of the first connecting portions is disposed on a bottom surface of the connecting body; wherein each second connecting part is integrally formed and convexly arranged on the top surface of the handrail support.

In a preferred embodiment of the present invention, each of the second fastening portions is a locking groove located on each of the inner ring wall surfaces, a through hole located on each of the inner ring wall surfaces, or an end surface located on each of the inner ring wall surfaces.

In a preferred embodiment of the present invention, the at least two tightening pieces are claw-shaped structures with a space therebetween.

In a preferred embodiment of the present invention, the inner bottom surface of the armrest cushion body comprises two symmetrical locking holes with a certain distance and a downward opening.

In a preferred embodiment of the present invention, the armrest cushion body is composed of an armrest cushion and an armrest structure.

In a preferred embodiment of the present invention, the armrest pad is a soft elastic body formed outside the armrest body by an integral foaming technique.

In a preferred embodiment of the present invention, a slot structure is further disposed on the wall surface of the accommodating slot of the armrest cushion body; wherein the side of the connecting body is further provided with a clamping convex structure which can be correspondingly clamped on the clamping groove structure; wherein the connecting body is clamped on the clamping groove structure by means of the clamping convex structure and is embedded in the accommodating groove.

The armrest cushion body is provided with the accommodating groove with a downward opening, and the accommodating groove has the depth and the shape; wherein the connecting body of the chair armrest has the thickness and the shape, and the thickness and the shape are correspondingly matched with the depth and the shape of the accommodating groove of the armrest cushion body, so that the connecting body of the chair armrest can be assembled and positioned in the accommodating groove in an embedded manner; the armrest support and the connecting body can be mutually connected by virtue of the connecting mechanism or the connecting relation of the connecting mechanism, so that the problem that the types of the armrest supports matched with the armrest pad bodies of the existing chair armrests are limited is effectively solved, the armrest pad bodies can be locked and combined with the existing armrest supports through the original locking holes, the armrest pad bodies can be matched and combined with the connecting bodies and combined with the novel armrest supports such as the armrest supports of the utility model by virtue of the connecting mechanism or the connecting mechanism, and a manufacturing end does not need to develop and produce a new armrest pad body to match with the armrest supports which are not combined by using locking components, so that the cost of the manufacturing end is reduced.

Drawings

Fig. 1 is a perspective assembly diagram of an embodiment of the utility model.

Fig. 2 is an exploded perspective view of the armrest cushion body (first embodiment) of fig. 1 rotated at an angle.

Fig. 3 is another perspective exploded view of the armrest pad and the connected body (the first embodiment) in fig. 2.

Fig. 4 is a sectional plan view of the armrest cushion body and the connecting body (the first embodiment) according to the present invention.

Fig. 5 is an exploded plan view of fig. 4.

Fig. 6 is a top plan view of the first coupling portion or the second coupling portion and the lock cylinder (first embodiment) in a first assembled state.

Fig. 7 is a top plan view schematically illustrating the first coupling portion or the second coupling portion and the lock cylinder (the first embodiment) in a second assembled state.

Fig. 8 is a partially enlarged top plan view schematically illustrating the first coupling portion or the second coupling portion and the lock cylinder (first embodiment) in a first assembled state.

Fig. 9 is a partially enlarged top plan view of the lock cylinder being horizontally pivoted along each stroke region of the first coupling portion or the second coupling portion (first embodiment).

Fig. 10 is a partially enlarged top plan view schematically illustrating the first coupling portion or the second coupling portion and the lock cylinder (first embodiment) in a second assembled state.

Fig. 11 is an exploded perspective view of another embodiment of the locking hole alignment lock (first embodiment) of the present invention.

Fig. 12 is an exploded perspective view of an embodiment of a conventional armrest pad and armrest support.

Fig. 13 is a sectional plan view of the armrest pad and the armrest support of fig. 12 assembled together.

Fig. 14 is an exploded perspective view of the armrest cushion body (second embodiment) of fig. 1 at an angle.

Fig. 15 is an exploded perspective view of the armrest cushion body and the connecting body (second embodiment) in fig. 2.

Fig. 16 is a partially enlarged schematic view of fig. 15.

Fig. 17 is a partially enlarged schematic view of the sleeve of fig. 16.

Fig. 18 is a partially enlarged schematic view of the urging member in fig. 16.

Fig. 19 is a side cross-sectional, exploded plan view of the axle tube, bushing and packing in accordance with a second embodiment of the present invention.

Fig. 20 is a partially enlarged assembly view of fig. 19 (the second engaging portion is a locking groove formed in each of the inner ring wall surfaces).

Fig. 21 is a partially enlarged and assembled view of fig. 19 (the second engaging portion is a through hole formed in the wall surface of the inner ring).

Fig. 22 is a partially enlarged and schematically combined view of fig. 19 (the second engaging portion is located on an end surface of each inner ring wall surface).

Fig. 23 is an exploded perspective view of another embodiment of the axle tube alignment sleeve (second embodiment) of the present invention.

Description of reference numerals: 1-chair armrests; 10-handrail support; 11-top surface of the holder; 12-front-back central axis; 20-armrest cushion body; 20 a-armrest pad; 20 b-armrest configuration; 21-containing groove; 22-inner bottom surface; 23-the wall of the containing groove; 24-a locking hole; 25-a card slot structure; 30-a connecting body; 31-a snap-projection configuration; 40-a linkage mechanism; 41-a first connecting part; 41 a-front-back central axis; 42-a second joint; 43-a lock head; 44-a lock neck; 44 a-vertical central axis; 45-keyhole; 46-a locking groove; 47-stroke area; 48-stop position; 50-a connecting mechanism; 51-a first connection; 52-a second joint; 53-shaft tube; 54-shaft sleeve; 55-a first snap-fit portion; 56-a second fastening portion; 56 a-card slot; 56 b-perforation; 56 c-end face; 57-inner ring wall surface; 58-a packing member; 581-fastening piece; 2-handrail support; 2 a-top surface; 2 b-a screw; d-distance; theta-angle.

Detailed Description

The present invention is described in detail with reference to the drawings, wherein the drawings are only for illustrating the structural relationship and the related functions of the present invention, and the sizes of the elements in the drawings are not to be drawn to scale and are not to be construed as limiting the present invention.

Generally, the chair armrest is locked on the left and right sides of the chair in terms of the direction of the seated user, so that the directions of "forward and backward" or "left and right" mentioned in the following disclosure are in terms of the direction of the seated user.

Referring to fig. 1, 2 and 14, the present invention provides a fabricated chair armrest 1, the chair armrest 1 comprising an armrest support 10, an armrest pad 20 and a connecting body 30, the chair armrest 1 being a basic chair armrest structure that cannot move back and forth, left and right or rotationally, rather than a chair armrest with multiple moving functions, but not limited thereto, belonging to a product facing most users of the general public and having a huge market value; wherein the chair armrest 1 is characterized by comprising a connecting mechanism 40 as shown in fig. 2 or a connecting mechanism 50 as shown in fig. 14, and the connecting mechanism 40 can be used in a first embodiment and the connecting mechanism 50 can be used in a second embodiment according to the difference of the connecting mechanism.

The structure and the technical features of the armrest support 10, the armrest cushion 20 and the connecting member 30 in the first embodiment or the second embodiment are substantially the same.

The top of the armrest support frame 10 includes a top frame surface 11 as shown in fig. 1 and 2.

The armrest cushion 20 is disposed on the top surface 11 of the armrest support 10 as shown in fig. 1 and 2, a receiving groove 21 with a downward opening is disposed on the bottom surface of the armrest cushion 20, the receiving groove 21 has a depth and a shape and includes an inner bottom surface 22 and a receiving groove wall surface 23 as shown in fig. 3 to 5; the inner bottom surface 22 of the armrest pad 20 further includes two symmetrical locking holes 24 with a certain distance d and a downward opening, but not limited to the hole shown in fig. 5, so as to be combined with the conventional armrest support by screw locking.

The armrest cushion 20 is composed of an armrest cushion 20a and an armrest structure 20b, but not limited to, as shown in fig. 4 and 5, and the armrest cushion 20a is a soft elastic body molded on the outside of the armrest structure 20b by an integral foaming technique, but not limited to, which is not only beneficial to the rapid manufacturing and mass production of the manufacturing end, but also beneficial to the comfort of the soft elasticity and can increase the satisfaction of the user.

In addition, the wall 23 of the receiving groove of the armrest cushion 20 is further provided with a locking groove structure 25 without limitation; wherein, a protruding structure 31 is further disposed on the side of the connecting body 30 and can be correspondingly fastened to the slot structure 25 without limitation; the connecting body 30 is clamped on the clamping groove structure 25 by the clamping convex structure 31 and is embedded in the accommodating groove 21, so as to increase the stability of clamping among the structures.

The connecting member 30 can be disposed between the armrest support 10 and the armrest cushion 20 as shown in fig. 2, and the connecting member 30 has a thickness and a shape corresponding to the depth and the shape of the accommodating groove 21 of the armrest cushion 20, so that the connecting member 30 can be assembled and positioned in the accommodating groove 21 in an embedded manner as shown in fig. 3 to 5.

The first and second embodiments are described below based on the difference in the connection mechanism of the chair armrest 1:

the embodiment shown in fig. 1 to 11 is a first embodiment of the chair arm 1 of the present invention, in which the connecting mechanism 40 comprises a first connecting portion 41 and a second connecting portion 42 capable of forming a vertical connecting relationship with each other, and the first connecting portion 41 and the second connecting portion 42 are respectively disposed at corresponding positions of the arm support 10 or the connecting body 30 as shown in fig. 2 and 11; wherein the first connecting portion 41 is formed by a locking head 43 having a vertical thickness and a locking neck 44 connected to one surface of the locking head 43 as shown in fig. 2 and 11; wherein the second connecting portion 42 is a locking hole 45 and a locking groove 46 with a vertical depth and is disposed inside the locking hole 45 in communication as shown in fig. 3 and 5; wherein the horizontal cross-sectional shape and the horizontal cross-sectional area of the locking hole 45 correspond to each other and are slightly larger than the horizontal cross-sectional shape and the horizontal cross-sectional area of the locking head 43, so that the locking head 43 can be vertically inserted into the locking hole 45 and positioned in the locking groove 46 as shown in fig. 8 to 10; wherein the horizontal cross-sectional shape and the horizontal cross-sectional area of the locking groove 46 are larger than and include the horizontal cross-sectional shape and the horizontal cross-sectional area of the locking head 43, such that the locking groove 46 can increase at least one stroke region 47 relative to the locking head 43, and further such that the locking head 43 can horizontally rotate (as shown in fig. 9) along each stroke region 47 after being vertically inserted into the locking groove 46 (as shown in fig. 8) and can be stopped and positioned at a stopping position 48 (as shown in fig. 10) on each stroke region 47; when the locking hole 45 and the locking head 43 are vertically aligned with each other (as shown in fig. 2 and 11), the locking head 43 can be vertically inserted into the locking groove 46 from the locking hole 45, and a first assembly state is formed between the locking hole 45 and the locking head 43 as shown in fig. 6 and 8; wherein when the lock hole 45 and the lock head 43 form the first assembly state, a horizontal offset angle θ is formed between a front-back central axis 41a of the first connecting portion 41 and the front-back central axis 12 of the support top surface 11 of the armrest support 10 as shown in fig. 6; when the first assembly state is formed between the lock hole 45 and the lock head 43, the lock head 43 can rotate horizontally in the lock slot 46 by using a vertical central shaft 44a of the lock neck 44 as a rotating shaft, as shown in fig. 9; when the lock head 43 is rotated by the staggered angle θ in the lock slot 46 to stop rotating, the lock head 43 is stopped and positioned at the stop position 48 on each travel area 47, and a second assembly state is formed between the lock hole 45 and the lock head 43 as shown in fig. 7 and 10, so that the armrest pad 20 can be assembled and locked with the armrest support 10.

When the chair armrest 1 is assembled, the armrest support 10 is connected to the connecting member 30 by the vertical connection between the first connecting portion 41 and the second connecting portion 42 of the connecting mechanism 40, and the armrest pad 20 is assembled with the armrest support 10 by the connecting member 30 as shown in fig. 2 and 11.

In addition, the first connecting portion 41 and the second connecting portion 42 can be selectively disposed at corresponding positions of the armrest support 10 or the connecting body 30 according to the requirement, in the embodiment shown in fig. 2, the first connecting portion 41 is integrally formed and protruded on the support top surface 11 of the armrest support 10, but is not limited thereto; wherein the second connecting portion 42 is disposed on the bottom surface of the connecting body 30 but is not limited thereto.

On the contrary, in the embodiment shown in fig. 11, the first connecting portion 41 is integrally formed and protruded on the bottom surface of the connecting body 30, but not limited thereto; wherein the second connecting portion 42 is disposed on the top surface 11 of the armrest support 10, but not limited thereto, to facilitate more versatile manufacturing applications. The above-mentioned structure and features are substantially the same except that the positions of the first connecting portion 41 and the second connecting portion 42 are changed.

The embodiment shown in fig. 14 to 23 is a second embodiment of the chair armrest 1 of the present invention, in the second embodiment, the connecting mechanism 50 includes at least one first connecting portion 51 and at least one second connecting portion 52 capable of forming a corresponding press-fit connection relationship in the vertical direction as shown in fig. 14 and 23, each first connecting portion 51 and each second connecting portion 52 are respectively disposed at corresponding positions of the bracket top surface 11 or the connecting body 30, each first connecting portion 51 is a shaft tube 53, each second connecting portion 52 is a shaft sleeve 54, each shaft tube 53 has a first engaging portion 55, each shaft sleeve 54 has a second engaging portion 56 corresponding to each first engaging portion 55, each shaft tube 53 can be engaged with each other by the first engaging portion 55 and the second engaging portion 56 of each shaft sleeve 54 as shown in fig. 20 to 22; wherein the second engaging portion 56 of each of the sleeves 54 is located on an inner annular wall 57 of each of the sleeves 54 as shown in fig. 19.

When the chair armrest 1 is assembled, the armrest support 10 is connected to the connecting body 30 by the corresponding vertical pressing and buckling connection relationship between the first connecting portion 51 and the second connecting portion 52 of the connecting mechanism 50 as shown in fig. 14 and 23, and the armrest cushion 20 is assembled to the armrest support 10 by the connecting body 30 as a whole as shown in fig. 14 and 23.

Referring to fig. 15, 16, 18 and 19, each of the bushings 54 further includes, but is not limited to, a packing member 58, each packing member 58 is located on the connecting body 30 and on the upper portion of each bushing 54, each packing member 58 includes at least two packing pieces 581 as shown in fig. 19; wherein the first fastening portion 55 of each shaft tube 53 is located on the end surface of each shaft tube 53 as shown in fig. 19; wherein when the first fastening parts 55 and the second fastening parts 56 are fastened to each other, the first fastening parts 55 of the shaft tube 53 are pressed by the compression stress of the at least two pressing sheets 581 of the pressing members 58, so that the first fastening parts 55 are pressed and clamped into the second fastening parts 56 as shown in fig. 20 to 22.

In addition, each of the first connecting portions 51 and each of the second connecting portions 52 can be selectively disposed at corresponding positions of the armrest support 10 or the connecting body 30, respectively, according to the requirement, in the embodiment shown in fig. 14, each of the first connecting portions 51 is integrally formed and protruded on the support top surface 11 of the armrest support 10, but is not limited thereto; wherein each of the second connecting portions 52 is disposed on the bottom surface of the connecting body 30 but is not limited thereto.

On the contrary, in the embodiment shown in fig. 23, each of the first connecting portions 51 is provided on the bottom surface of the connecting body 30 but is not limited thereto; wherein each second connection portion 52 is integrally formed and protruded on the top surface 11 of the armrest support 10, but not limited thereto, so as to facilitate more diversified manufacturing applications. The above-mentioned structure and features are substantially the same except that the positions of the first connecting portions 51 and the second connecting portions 52 are changed.

Referring to fig. 20 to 22, each of the second engaging portions 56 is, but not limited to, a slot 56a on each of the inner ring wall surfaces 57 (as shown in fig. 20), a through hole 56b on each of the inner ring wall surfaces 57 (as shown in fig. 21), or an end surface 56c on each of the inner ring wall surfaces 57 (as shown in fig. 22).

Referring to fig. 18, the at least two fastening sheets 581 are claw-type structures spaced from each other but not limited to, to facilitate increasing the fastening force to other structures.

Compared with the existing chair armrest, the chair armrest 1 of the utility model has the following advantages:

the armrest cushion body 20 of the utility model is provided with the accommodating groove 21 with a downward opening, and the accommodating groove 21 has the depth and the shape; wherein the connecting body 30 of the chair armrest 1 has the thickness and the shape, and the thickness and the shape are correspondingly matched with the depth and the shape of the accommodating groove 21 of the armrest pad 20, so that the connecting body 30 of the chair armrest 1 can be assembled and positioned in the accommodating groove 21 in an embedded manner; the armrest support 10 and the connecting body 30 can be connected with each other by the connection relationship of the connection mechanism 40 or the connection mechanism 50, so as to effectively solve the problem that the types of the armrest supports that the armrest pad of the existing chair armrest can be matched with are limited, the armrest pad 20 can be locked and combined with the existing armrest support 2 through the original locking holes 24 as shown in fig. 12 and 13, the armrest pad 20 can also be matched with the connecting body 30 and combined with the new armrest support such as the armrest support 10 of the utility model by the connection mechanism 40 or the connection mechanism 50 as shown in fig. 2, 11, 14 and 23, and the manufacturing end does not need to develop and produce a new armrest pad to match with the armrest support that is not combined by using locking components, which is beneficial to reducing the cost of the manufacturing end.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (17)

1. A fabricated chair armrest, comprising:

the top of the armrest support comprises a support top surface, and the support top surface is provided with a front-back central shaft;

the armrest cushion body is arranged on the top surface of the bracket of the armrest bracket, the bottom surface of the armrest cushion body is provided with a containing groove with a downward opening, and the containing groove has a depth and a shape and comprises an inner bottom surface and a containing groove wall surface;

the connecting body is arranged between the armrest support and the armrest cushion body, and has a thickness and a shape which are correspondingly matched with the depth and the shape of the accommodating groove of the armrest cushion body, so that the connecting body can be assembled in an embedded manner and positioned in the accommodating groove; and

a connecting mechanism, which comprises a first connecting part and a second connecting part which can mutually form a vertical connection relationship, wherein the first connecting part and the second connecting part are respectively arranged on the corresponding positions of the armrest support or the connecting body; wherein the first connecting part is formed by a lock head with a vertical thickness and a lock neck which is connected and arranged on one surface of the lock head; wherein the second connecting part is formed by a lock hole and a lock groove with a vertical depth which are communicated with each other and arranged at the inner side of the lock hole; the horizontal cross section shape and the horizontal cross section area of the lock hole correspond to and are larger than the horizontal cross section shape and the horizontal cross section area of the lock head, so that the lock head can be vertically embedded into the lock hole and positioned in the lock groove; the horizontal sectional shape and the horizontal sectional area of the lock groove are larger than and comprise the horizontal sectional shape and the horizontal sectional area of the lock head, so that the lock groove can increase at least one stroke area relative to the lock head, and the lock head can be vertically embedded into the lock groove, can horizontally rotate along each stroke area and can be stopped and positioned at a stopping position on each stroke area; when the lock hole is vertically aligned with the lock head, the lock head can be vertically embedded into the lock groove from the lock hole, and a first assembly state is formed between the lock hole and the lock head; when the lock hole and the lock head form the first assembly state, a horizontal staggered angle is formed between a front-back central shaft of the first connecting part and the front-back central shaft of the top surface of the support of the handrail support; when the lock hole and the lock head form the first assembly state, the lock head can rotate horizontally in the lock groove by taking a vertical central shaft of the lock neck as a rotating shaft; when the lock head rotates relatively in the lock groove by the staggered angle until the lock head cannot rotate and stops rotating, the lock head is stopped and positioned at the stopping position on each stroke area, a second assembling state is formed between the lock hole and the lock head, and the armrest cushion body can be assembled and locked with the armrest support into a whole;

when the chair armrest is assembled, the armrest support is mutually connected with the connecting body by virtue of the vertical connection relationship between the first connecting part and the second connecting part of the connecting mechanism, and the armrest cushion body is assembled into a whole by virtue of the matching of the connecting body and the armrest support.

2. The fabricated chair armrest of claim 1, wherein: the inner bottom surface of the armrest cushion body comprises two symmetrical locking holes with a certain distance and a downward opening.

3. The fabricated chair armrest of claim 1, wherein: the armrest cushion body is composed of an armrest cushion and an armrest structure body.

4. The fabricated chair armrest of claim 3, wherein: the armrest pad is a soft elastic body which is formed outside the armrest structure by an integral foaming technique.

5. The fabricated chair armrest of claim 1, wherein: the wall surface of the containing groove of the armrest cushion body is also provided with a clamping groove structure; wherein, the side of the connecting body is also provided with a clamping convex structure which can be correspondingly clamped on the clamping groove structure; wherein the connecting body is clamped on the clamping groove structure by means of the clamping convex structure and is embedded in the accommodating groove.

6. The fabricated chair armrest of claim 1, wherein: the first connecting part is integrally and convexly arranged on the top surface of the bracket of the handrail bracket; wherein the second connecting part is arranged on the bottom surface of the connecting body.

7. The fabricated chair armrest of claim 1, wherein: the first connecting part is integrally formed and convexly arranged on the bottom surface of the connecting body; wherein the second connecting part is arranged on the top surface of the handrail support.

8. A fabricated chair armrest, comprising:

the top of the armrest support comprises a support top surface, and the support top surface is provided with a front-back central shaft;

the armrest cushion body is arranged on the top surface of the bracket of the armrest bracket, the bottom surface of the armrest cushion body is provided with a containing groove with a downward opening, and the containing groove has a depth and a shape and comprises an inner bottom surface and a containing groove wall surface;

the connecting body can be arranged between the armrest support and the armrest cushion body, has a thickness and a shape, and the thickness and the shape of the connecting body are correspondingly matched with the depth and the shape of the accommodating groove of the armrest cushion body, so that the connecting body can be assembled in an embedded manner and positioned in the accommodating groove; and

a connecting mechanism, which comprises at least one first connecting part and at least one second connecting part which can mutually form a corresponding pressing and buckling connection relationship in the vertical direction, wherein each first connecting part and each second connecting part are respectively arranged on the corresponding position of the top surface of the bracket or the connecting body, each first connecting part is a shaft tube, each second connecting part is a shaft sleeve, each shaft tube is provided with a first buckling part, each shaft sleeve is provided with a second buckling part corresponding to each first buckling part, and each shaft tube can be buckled with each second buckling part of each shaft sleeve by virtue of the first buckling parts; wherein the second buckling part of each shaft sleeve is positioned on an inner ring wall surface in each shaft sleeve;

when the chair armrest is assembled, the armrest support is mutually connected with the connecting body by means of the corresponding up-and-down pressing, buckling and connecting relationship of the first connecting parts and the second connecting parts of the connecting mechanism, and the armrest cushion body is assembled into a whole by means of the connecting body and the armrest support in a matching way.

9. The fabricated chair armrest of claim 8, wherein: the inner bottom surface of the armrest cushion body comprises two symmetrical locking holes with a certain distance and a downward opening.

10. The fabricated chair armrest of claim 8, wherein: the armrest cushion body is composed of an armrest cushion and an armrest structure body.

11. The fabricated chair armrest of claim 10, wherein: the armrest pad is a soft elastic body formed outside the armrest structure by an integral foaming technique.

12. The fabricated chair armrest of claim 8, wherein: the wall surface of the containing groove of the armrest cushion body is also provided with a clamping groove structure; wherein, the side of the connecting body is also provided with a clamping convex structure which can be correspondingly clamped on the clamping groove structure; wherein the connecting body is clamped on the clamping groove structure by the clamping convex structure and is embedded in the containing groove.

13. The fabricated chair armrest of claim 8, wherein: each shaft sleeve also comprises a packing piece, each packing piece is positioned on the connecting body and positioned at the upper part of each shaft sleeve, and each packing piece comprises at least two packing pieces; wherein the first buckling part of each shaft tube is positioned on the end surface of each shaft tube; when the first buckling parts and the second buckling parts are buckled with each other, the first buckling parts of the shaft tubes are pressed by the compression stress of the at least two packing pieces of the packing pieces, so that the first buckling parts are pressed and clamped into the second buckling parts.

14. The fabricated chair armrest of claim 8, wherein: each first connecting part is integrally formed and convexly arranged on the top surface of the bracket of the handrail bracket; wherein each second connecting part is arranged on the bottom surface of the connecting body.

15. The fabricated chair armrest of claim 8, wherein: each first connecting part is arranged on the bottom surface of the connecting body; wherein each second connecting part is integrally formed and convexly arranged on the top surface of the handrail support.

16. The fabricated chair armrest of claim 8, wherein: each second buckling part is a clamping groove positioned on the wall surface of each inner ring, a through hole positioned on the wall surface of each inner ring or an end surface positioned on the wall surface of each inner ring.

17. The fabricated chair armrest of claim 13, wherein: the at least two fastening pieces are claw-shaped structures with intervals between each other.

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