CN220756977U - Chair and tray thereof - Google Patents

Abstract

The utility model discloses a chair and a tray thereof, comprising: a base; the left side and the right side of the front part of the first connecting seat are respectively provided with a chute in an opposite way; a second connecting seat; the front part of the third connecting seat is provided with a first connecting rod; a fourth connecting seat; an elastic member; the rear part of the first connecting seat is hinged with the front part of the base, the lower part of the second connecting seat is hinged with the rear part of the base, the middle part of the third connecting seat is hinged with the middle part of the base, the first connecting rod of the third connecting seat is arranged in the sliding groove of the first connecting seat in a penetrating way and can move back and forth along the sliding groove, the fourth connecting seat is arranged above the base, the front part of the fourth connecting seat is hinged with the first connecting seat, the rear part of the fourth connecting seat is hinged with the second connecting seat, the front part of the elastic piece is connected with the first connecting rod, and the rear part of the elastic piece is connected with the base. In this scheme, the mode of changing the inclination of seat support and back of the chair is simple, and whole linkage is more controllable, and back of the chair and seat support inclination's regulation is more convenient.

Description

Chair and tray thereof

Technical Field

The utility model relates to the field of seats, in particular to a chair and a tray thereof.

Background

The chair is a piece of furniture which is indispensable for people to work or rest, and in order to improve the comfort during use, the chair backs of many existing chairs can rotate to different angles back and forth relative to the chassis. The chair mainly relies on a rotating connection structure between a tray for fixing a chair seat and a chair back fixing frame for fixing a chair back and a locking mechanism to realize the functions of lying down the chair back and adjusting the inclination angle of the chair back, and a spring piece is usually arranged on a rotating shaft of the chair back fixing frame and generates certain resilience force in the process of rotating the chair back, so that a user can support the chair back by a certain back in the lying process, and after the locking mechanism is released, the chair back can be automatically restored to an initial state by the spring piece.

The patent application with the publication number of CN102846068A discloses a swivel chair chassis, which comprises a seat plate, a support plate, a backrest bracket and a support frame, wherein the seat plate is connected with a chair seat, the backrest bracket is connected with a backrest, the bottom of the support frame and the bottom of the backrest bracket are hinged with the support plate, the seat plate is hinged with the top of the support frame and the top of the backrest bracket, the swivel chair chassis does not need manual adjustment, the backrest leaning restoring force is correspondingly matched according to the weight of a human body, the larger the weight of a user is, the restoring force of the backrest leaning and leaning is automatically increased, and the swivel chair is helpful for the user to lean and lift up. When the swivel chair chassis is used, the seat board, the support board, the backrest bracket and the support frame are arranged in a quadrilateral mode, when the backrest leans backwards, the seat board can relatively move backwards and downwards, however, in the process, the seat board is always kept horizontal, the inclination angle of the seat board cannot be changed in an adaptive mode, and the legs of a user cannot be emptied and relaxed thoroughly.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a chair and a tray thereof, when the tray is used, a user can change the inclination angles of a chair seat and a chair back on the chair only by leaning on the chair back according to the needs of the user, the use comfort is higher, and the mode of changing the chair seat and the chair back is simple.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a tray, comprising:

the base is used for connecting chair legs of a chair;

the left side and the right side of the front part of the first connecting seat are respectively provided with a chute in an opposite way;

a second connecting seat;

the third connecting seat is used for connecting the chair back of the chair, and the front part of the third connecting seat is provided with a first connecting rod;

the fourth connecting seat is used for connecting a seat of the chair;

an elastic member;

the rear part of the first connecting seat is hinged with the front part of the base, the lower part of the second connecting seat is hinged with the rear part of the base, the middle part of the third connecting seat is hinged with the middle part of the base, the first connecting rod of the third connecting seat is arranged in the sliding groove of the first connecting seat in a penetrating mode and can move back and forth along the sliding groove, the fourth connecting seat is arranged above the base, the front part of the fourth connecting seat is hinged with the first connecting seat, the rear part of the fourth connecting seat is hinged with the second connecting seat, the elastic piece is arranged in the base, the front part of the elastic piece is connected with the first connecting rod, and the rear part of the elastic piece is connected with the base.

Preferably, the first connecting seat comprises a first connecting piece, the left side and the right side of the first connecting piece respectively extend backwards to form a first connecting piece, the sliding groove is formed in the first connecting piece, a first hinge hole and a second hinge hole located below the first hinge hole are further formed in the first connecting piece, and the first hinge hole is located between the second hinge hole and the sliding groove.

Preferably, the hinge assembly further comprises a second link, and the first hinge hole of the first connecting seat is connected with the front part of the fourth connecting seat through the second link.

Preferably, the second connecting seat comprises a second connecting piece, the left side and the right side of the second connecting piece respectively extend forwards to form a second connecting piece, a third hinge hole and a fourth hinge hole are formed in the second connecting piece, and the fourth hinge hole is located below the third hinge hole.

Preferably, the hinge assembly further comprises a third connecting rod, and the third hinge hole of the second connecting seat is connected with the rear part of the fourth connecting seat through the third connecting rod.

Preferably, the device further comprises a fourth connecting rod, and the fourth hinge hole of the second connecting seat is connected with the rear part of the base through the fourth connecting rod.

Preferably, the third connecting seat comprises a third connecting piece, the left side and the right side of the third connecting piece are respectively fixed with a third connecting piece which extends forwards, and the front parts of the two third connecting pieces are connected through a first connecting rod.

Preferably, the base is hinged with the third connecting seat through a fifth connecting rod.

Preferably, the elastic piece is a torsion spring, the torsion spring is sleeved on the fifth connecting rod, the front end of the torsion spring abuts against the first connecting rod, and the rear end of the torsion spring abuts against the base.

The chair comprises chair legs, a chair seat and a chair back, and further comprises the tray, wherein the chair legs are arranged on the bottom surface of the base, the chair seat is fixedly arranged on the top surface of the fourth connecting seat, and the chair back is fixedly connected with the rear portion of the third connecting seat.

The utility model has the following beneficial effects due to the adoption of the technical scheme: 1. when the tray is used, a user leans back, the rear part of the third connecting seat rotates downwards relative to the base, the front part of the third connecting seat rotates upwards relative to the base and drives the first connecting seat to rotate relative to the base, so that the fourth connecting seat is driven to incline relative to the base; 2. according to the utility model, the inclination angles of the chair back and the chair seat are adjusted through the matching of the base, the first connecting seat, the second connecting seat, the third connecting seat, the fourth connecting seat and the elastic piece, the whole linkage is more controllable, and the adjustment of the inclination angles of the chair back and the chair seat is more convenient.

Drawings

FIG. 1 is a schematic view of a tray according to the present utility model;

FIG. 2 is a schematic view of the structure of FIG. 1 with the fourth connecting seat, the second link and the third link removed;

FIG. 3 is a schematic view of the structure of the first connecting seat;

FIG. 4 is a schematic view of the structure of the second connecting base;

fig. 5 is a schematic structural view of the third connecting seat.

Reference numerals:

1. a base;

2. a first connection base; 21. a chute; 22. a first connector; 23. a first connecting piece; 231. a first hinge hole; 232. a second hinge hole;

3. a second connecting seat; 31. a second connector; 32. a second connecting piece; 321. a third hinge hole; 322. a fourth hinge hole;

4. a third connecting seat; 41. a first link; 42. a third connecting member; 43. a third connecting piece;

5. a fourth connecting seat;

6. an elastic member;

7. a second link;

8. a third link;

9. a fourth link;

10. and a fifth connecting rod.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

For clarity of description, in the present utility model, when the tray is mounted on the chair, the side on which the user sits is the front, and vice versa.

A pallet as shown in figures 1 to 2, comprising:

a base 1 for connecting chair legs of a chair;

the left side and the right side of the front part of the first connecting seat 2 are respectively provided with a chute 21;

a second connection base 3;

a third connecting seat 4 for connecting with the back of the chair, the front part of the third connecting seat 4 is provided with a first connecting rod 41;

a fourth connecting seat 5 for connecting with a seat of a chair;

an elastic member 6;

wherein, the rear portion of first connecting seat 2 is articulated with the front portion of base 1, and the lower part of second connecting seat 3 is articulated with the rear portion of base 1, and the middle part of third connecting seat 4 is articulated with the middle part of base 1, and the first connecting rod 41 of third connecting seat 4 wears to establish in the spout 21 of first connecting seat 2 and can reciprocate along spout 21, fourth connecting seat 5 set up in the top of base 1, the front portion of fourth connecting seat 5 is articulated with first connecting seat 2, the rear portion of fourth connecting seat 5 is articulated with second connecting seat 3, elastic component 6 sets up in base 1, the front portion of elastic component 6 is connected with first connecting rod 41, the rear portion of elastic component 6 is connected with base 1.

When a user leans back against the chair back by using the tray, the rear part of the third connecting seat 4 rotates downwards relative to the base 1, the front part of the third connecting seat 4 rotates upwards relative to the base 1, the first connecting seat 2 is driven to rotate relative to the base 1, the elastic piece 6 deforms, so that the fourth connecting seat 5 is driven to incline relative to the base 1, the user has the sense of sinking buttocks when using, the comfort is higher, after the user withdraws the force leaning back, the third connecting seat 4 returns to the initial position under the action of the elastic piece 6, so that the chair back and the chair seat return to the initial position, and the mode of changing the inclination angle of the chair seat and the chair back is simple.

As shown in fig. 3, the first connecting seat 2 includes a first connecting member 22, two left and right sides of the first connecting member 22 respectively extend backward to form a first connecting plate 23, the chute 21 is formed on the first connecting plate 23, the first connecting plate 23 is further provided with a first hinge hole 231 and a second hinge hole 232 located below the first hinge hole 231, and the first hinge hole 231 is located between the second hinge hole 232 and the chute 21.

In the present utility model, a second link 7 is further included, and the first hinge hole 231 of the first coupling seat 2 and the front portion of the fourth coupling seat 5 are coupled by the second link 7.

As shown in fig. 4, the second connecting seat 3 includes a second connecting member 31, two left and right sides of the second connecting member 31 respectively extend forward to form a second connecting piece 32, a third hinge hole 321 and a fourth hinge hole 322 are disposed on the second connecting piece 32, and the fourth hinge hole 322 is located below the third hinge hole 321.

In the utility model, the novel multifunctional portable electronic device further comprises a third connecting rod 8, wherein the third hinge hole 321 of the second connecting seat 3 is connected with the rear part of the fourth connecting seat 5 through the third connecting rod 8, and the novel multifunctional portable electronic device further comprises a fourth connecting rod 9, and the fourth hinge hole 322 of the second connecting seat 3 is connected with the rear part of the base 1 through the fourth connecting rod 9.

As shown in fig. 5, the third connecting seat 4 includes a third connecting member 42, and a third connecting piece 43 extending forward is fixed on each of the left and right sides of the third connecting member 42, and the front portions of the two third connecting pieces 43 are connected by a first connecting rod 41. In the utility model, the base 1 and the third connecting seat 4 are hinged through the fifth connecting rod 10.

In the present utility model, the elastic member 6 is a torsion spring, the torsion spring is sleeved on the fifth connecting rod 10, the front end of the torsion spring is connected with the first connecting rod 41, and the rear end of the torsion spring abuts against the base 1.

The utility model also discloses a chair, which comprises chair legs, a chair seat and a chair back, and also comprises the tray, wherein the chair legs are arranged on the bottom surface of the base 1, the chair seat is fixedly arranged on the top surface of the fourth connecting seat 5, and the chair back is fixedly connected with the rear part of the third connecting seat 4.

All features described in the description, the appended claims and the drawings, either alone or in any combination, are important features of the present utility model.

In the description of the present specification, the descriptions of the terms "one embodiment," "some embodiments," "one implementation," "a particular implementation," "other implementations," "examples," "particular examples," 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, implementation, or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described above may be combined in any suitable manner in any one or more embodiments, implementations, or examples. The technical scheme disclosed by the utility model also comprises the technical scheme that any one or more specific features, structures, materials or characteristics are formed singly or in combination.

Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, variations, deletions of parts, additions of features, or re-combination of features may be made to the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model, all such simple modifications, equivalents, and adaptations of the embodiments as may be made by the principles of the utility model and without departing from the scope of the utility model.

Claims (10)

1. A tray, comprising:

a base (1) for connecting the legs of a chair;

the left side and the right side of the front part of the first connecting seat (2) are respectively provided with a chute (21) in an opposite way;

a second connection base (3);

the third connecting seat (4) is used for connecting the chair back of the chair, and the front part of the third connecting seat (4) is provided with a first connecting rod (41);

a fourth connecting seat (5) for connecting with a seat of a chair;

an elastic member (6);

the rear portion of first connecting seat (2) is articulated with the front portion of base (1), the lower part of second connecting seat (3) is articulated with the rear portion of base (1), the middle part of third connecting seat (4) is articulated with the middle part of base (1), first connecting rod (41) of third connecting seat (4) wear to establish in spout (21) of first connecting seat (2) and can follow spout (21) back and forth movement, fourth connecting seat (5) set up in the top of base (1), the front portion of fourth connecting seat (5) is articulated with first connecting seat (2), the rear portion of fourth connecting seat (5) is articulated with second connecting seat (3), elastic component (6) set up in base (1), the front end and the first connecting rod (41) of elastic component (6) are connected, the rear end and the base (1) of elastic component (6) are connected.

2. A pallet as claimed in claim 1, characterised in that the first connecting seat (2) comprises a first connecting piece (22), a first connecting piece (23) is respectively extended backwards from the left and right sides of the first connecting piece (22), the sliding groove (21) is formed on the first connecting piece (23), the first connecting piece (23) is further provided with a first hinge hole (231) and a second hinge hole (232) located below the first hinge hole (231), and the first hinge hole (231) is located between the second hinge hole (232) and the sliding groove (21).

3. A pallet as claimed in claim 2, characterised by further comprising a second link (7), the first hinge hole (231) of the first connecting seat (2) and the front part of the fourth connecting seat (5) being connected by the second link (7).

4. A pallet as claimed in claim 1, characterised in that the second connecting seat (3) comprises a second connecting piece (31), the left and right sides of the second connecting piece (31) respectively extend forward to a second connecting piece (32), the second connecting piece (32) is provided with a third hinge hole (321) and a fourth hinge hole (322), and the fourth hinge hole (322) is located below the third hinge hole (321).

5. A pallet according to claim 4, further comprising a third link (8), wherein the third hinge hole (321) of the second connecting seat (3) and the rear part of the fourth connecting seat (5) are connected by the third link (8).

6. A pallet according to claim 1, further comprising a fourth link (9), wherein the fourth hinge hole (322) of the second connecting seat (3) is connected to the rear part of the base (1) by the fourth link (9).

7. A pallet as claimed in claim 1, characterised in that the third connecting seat (4) comprises third connecting members (42), a third connecting piece (43) extending forward is fixed to the left and right sides of the third connecting members (42), and the front parts of the two third connecting pieces (43) are connected by a first connecting rod (41).

8. A pallet according to claim 1, further comprising a fifth link (10), wherein the base (1) and the third connecting seat (4) are hinged by means of the fifth link (10).

9. A pallet as claimed in claim 8, characterised in that the resilient member (6) is a torsion spring which is arranged around the fifth link (10), the front end of which abuts against the first link (41) and the rear end of which abuts against the base (1).

10. A chair comprising legs, a seat and a back, characterized in that it further comprises a tray according to any one of claims 1-9, said legs being arranged below the base (1), said seat being fixedly arranged on the fourth connecting seat (5), said back being fixedly connected to the rear part of the third connecting seat (4).