CN217524368U

CN217524368U - Double-back functional chair with reset handle

Info

Publication number: CN217524368U
Application number: CN202221537923.7U
Authority: CN
Inventors: 杨丽敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-18
Filing date: 2022-06-18
Publication date: 2022-10-04
Anticipated expiration: 2032-06-18

Abstract

A double-back functional chair with a reset handle comprises a chair seat plate and a basic backrest arranged at the rear end of the chair seat plate; a backrest cover is arranged on the rear side of the basic backrest, a front backrest is arranged on the front side of the basic backrest, and the rear side of the front backrest is fixedly connected to the basic backrest or/and the backrest cover; the backrest cover is provided with a handle which can be unfolded and used by a user in a rotating mode, a return spring used for driving the handle to rotate and reset is arranged between the handle and the backrest cover, and the handle is folded to the rear side of the front backrest in a rotating mode under the action of the return spring. The handle is rotationally connected to the chair back cover, and a user can pull the functional chair to carry after turning over and opening the handle, so that the aim of facilitating carrying and moving of the functional chair is fulfilled; and after the user finishes using the handle, the reset spring can drive the handle to reset and draw in to the back side of the front backrest, thereby reducing the space occupied by the handle when not in use, reducing the probability that the handle collides with other objects or other people, and improving the attractiveness of the chair.

Description

Double-back functional chair with reset handle

Technical Field

The utility model relates to a chair technical field, concretely relates to two back of body function chairs of handle reset in area.

Background

A chair is a piece of daily-life furniture, and can be roughly classified into office chairs, dining chairs, bar chairs, leisure chairs, reclining chairs, special chairs, children chairs and the like according to the use classification.

In the prior art, in order to facilitate the user to move and carry the chair, a handle is usually provided on the chair, such as a new office chair with publication (announcement) number CN 209474133U. However, the handle of the structure can not be folded and folded, and the back of the chair is in an outward protruding design, which occupies a certain space, so that the handle is easy to collide with other objects or other people when the chair is in use, and when the space occupied by the outward protruding handle is too much, the appearance of the chair is also affected by the too protruding handle, therefore, in order to solve the problem of reducing the outward protruding handle, the existing chair and handle structure need to be improved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a double-back functional chair with a reset handle.

The utility model provides a technical scheme that its technical problem adopted is:

a double-back functional chair with a reset handle comprises a chair seat plate and a basic backrest arranged at the rear end of the chair seat plate; a backrest cover is arranged on the rear side of the basic backrest, a front backrest is arranged on the front side of the basic backrest, and the rear side of the front backrest is fixedly connected to the basic backrest or/and the backrest cover; the backrest cover is provided with a handle which can be unfolded and used by a user in a rotating mode, a return spring used for driving the handle to rotate and reset is arranged between the handle and the backrest cover, and the handle is folded to the rear side of the front backrest in a rotating mode under the action of the return spring.

The utility model discloses in, the front side laminating on basic back upper portion is on the rear side of preceding back lower part, be equipped with the cartridge hole on the basic back, be equipped with the cartridge lug of cartridge in the cartridge hole on the rear side of preceding back.

In the utility model, the rear side of the basic backrest is provided with an installation slot, an insertion hole of the installation slot is positioned at the upper end of the basic backrest, and the backrest cover is inserted in the installation slot; the side face of the backrest cover is provided with a side edge insertion block, a side edge insertion groove is arranged in the installation insertion groove, and a side edge insertion block is inserted into each side edge insertion groove.

The utility model discloses in, be equipped with the bottom inserted block on the bottom of back lid, be equipped with the bottom slot in the installation slot, the cooperation of bottom inserted block cartridge is in the bottom slot.

The utility model discloses in, the front side of back lid is equipped with holds the recess, it is equipped with built-in inserted block in the recess to hold, be equipped with built-in slot in the installation slot, the cooperation of built-in inserted block cartridge is in built-in slot.

In the utility model, a first plug-in locking block is arranged in the mounting slot; the backrest cover is provided with a second plug-in locking block which is matched with the first plug-in locking block to lock the backrest cover on the base backrest; when the backrest cover is inserted into the installation slot, the bottom of the first insertion locking block abuts against the top of the second insertion locking block.

The utility model discloses in, the back is covered and is equipped with the roating seat, be equipped with the connection shaft hole on the roating seat, rotate in the connection shaft hole and install the connection pivot, the handle is connected with the connection pivot.

The utility model discloses in, be equipped with first spring groove on the handle, first spring inslot is equipped with first draw-in groove, be equipped with second spring groove on the roating seat, second spring inslot is equipped with the second draw-in groove, reset spring's both ends cartridge is at first spring groove and second spring inslot respectively, reset spring's one of them is turned round the foot cartridge in first draw-in groove, and another is turned round the foot cartridge in the second draw-in groove.

The utility model discloses in, be equipped with the rotatory limit structure who is used for restricting the rotatory angle that expandes of handle between handle and the roating seat.

The utility model discloses in, rotatory limit structure is including locating the rotatory stopper on the roating seat, locating the rotatory spacing groove on hand, rotatory stopper stretches into in rotatory spacing groove.

The utility model has the advantages that: in the utility model, the handle is rotationally connected with the chair back cover, and the user can turn over and open the handle and then pull the functional chair through the handle, thereby achieving the purpose of facilitating the functional chair to move; and after the user finishes using the handle, the reset spring can drive the handle to reset and draw in to the back side of the front backrest, thereby reducing the space occupied by the handle when not in use, reducing the probability that the handle collides with other objects or other people, and improving the attractiveness of the chair. In addition, the front backrest is arranged to provide a larger human back supporting surface, so that the functional chair can better support the human back, and the use experience of the functional chair is guaranteed.

Drawings

The present invention is further described below with reference to the accompanying drawings and embodiments:

FIG. 1 is a perspective view of the present embodiment;

FIG. 2 is an exploded view of the present embodiment;

FIG. 3 is an enlarged view of a part of the present embodiment;

FIG. 4 is a sectional view of the present embodiment;

FIG. 5 is a cross-sectional view of the handle;

FIG. 6 is a perspective view of the back cover;

FIG. 7 is a partial side view of the back cover;

FIG. 8 is a schematic view of the connection between the handle and the rotary base;

fig. 9 is a second perspective view of the back cover.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention will be combined below to clearly and completely describe the technical solution in the embodiments of the present invention.

Referring to 1~9, a dual-back functional chair with a reset handle comprises a chair seat plate 1 and a base backrest 2 arranged at the rear end of the chair seat plate 1, wherein the chair seat plate 1 and the base backrest 2 are arranged in an injection molding and integral molding manner, a connecting base 3 is arranged at the bottom of the chair seat plate 1, a mounting jack used for connecting a chair foot component is arranged on the connecting base 3, the upper end of the chair foot component is inserted into the mounting jack, and the connection between the chair foot component and the connecting base 3 is the conventional technology in the field, so that detailed description is omitted, and the chair foot component is not shown in the attached drawings. Be equipped with back lid 4 on the rear side of basis back 2, the front side of basis back 2 is equipped with preceding back 5, preceding back 5's rear side fixed connection is on basis back 2 or back lid 4, preceding back 5 is greater than basis back 2, and preceding back 5 can provide bigger human back holding surface, lets the functional chair support human back better. Install on the back lid 4 and to let the rotatory handle 6 that expandes the use of user, be equipped with between handle 6 and the back lid 4 and be used for driving about handle 6 and rotate reset spring 7 that resets, handle 6 is rotatory to be drawn in to preceding back 5 rear side under reset spring 7's effect, makes the function chair have handle 6 and expandes and accomodate the function to reduce the space that handle 6 took when not using, avoid prior art's drawback.

In a preferred embodiment, the front side of the upper portion of the base backrest 2 is attached to the rear side of the lower portion of the front backrest 5, so that the base backrest 2 provides strong support for the front backrest 5 and better supports the bottom of the human body. The backrest comprises a base backrest 2 and a front backrest 5, and is characterized in that an insertion hole 25 is formed in the base backrest 2, the insertion hole 25 is communicated with an installation slot 20, an insertion projection 51 inserted into the insertion hole 25 is formed in the rear side of the front backrest 5, a fastening piece for locking the insertion projection 51 in the insertion hole 25 is arranged on the insertion projection 51, the fastening piece is in threaded connection with a connecting hole of the insertion projection 51 in the installation slot 20, the insertion projection 51 is locked in the insertion hole 25, the fastening piece is not shown in the drawing, and the fastening piece is a bolt. In other embodiments, the front backrest 5 may also be fixed to the backrest cover 4.

As a preferred embodiment, a mounting slot 20 is provided on the rear side of the base backrest 2, an insertion opening of the mounting slot 20 is located at the upper end of the base backrest 2, and the backrest cover 4 is inserted into the mounting slot 20; the side surface of the backrest cover 4 is provided with side inserting blocks 41, the installation slot 20 is internally provided with side slots 21 which are matched with the side inserting blocks 41 in an inserting way, and two side slots 21 are respectively arranged at the left end and the right end of an inserting hole of the installation slot 20; the number of the side insertion pieces 41 is two, and one side insertion piece 41 is inserted into each side insertion groove 21, so that the backrest cover 4 cannot move backward to be separated from the base backrest 2. In order to further improve the installation effect of the backrest cover 4, a bottom insertion block 42 is provided on the bottom of the backrest cover 4, a bottom insertion slot 22 for insertion and engagement of the bottom insertion block 42 is provided in the installation slot 20, and the bottom insertion block 42 is inserted and engaged in the bottom insertion slot 22. In addition, the front side of the backrest cover 4 is provided with a receiving groove, a built-in insertion block 43 is arranged in the receiving groove, a built-in insertion slot 23 is arranged in the installation slot 20, and the built-in insertion block 43 is inserted and matched in the built-in insertion slot 23.

In a preferred embodiment, a first insertion locking block 24 is arranged in the installation slot 20, and the first insertion locking block 24 is integrally formed with the base backrest 2; the backrest cover 4 is provided with a second plug-in locking block 44 which is matched with the first plug-in locking block 24 to lock the backrest cover 4 on the base backrest 2, the second plug-in locking block 44 is positioned in the accommodating groove, and the second plug-in locking block 44 and the backrest cover 4 are integrally formed; when the back cover 4 is inserted into the mounting slot 20, the bottom of the first insertion lock 24 abuts the top of the second insertion lock 44, so that the back cover 4 cannot move upward and away from the base back 2. Further, the cross-sectional shapes of the first plug-in locking piece 24 and the second plug-in locking piece 44 are both triangular, a first locking plane is arranged at the bottom of the first plug-in locking piece 24, and a second locking plane abutting against the first locking plane is arranged at the top of the second plug-in locking piece 44. In order to facilitate the matching between the first insertion locking piece 24 and the second insertion locking piece 44, a first matching inclined surface for facilitating the downward sliding of the second insertion locking piece 44 on the first insertion locking piece 24 is arranged on the side surface of the first insertion locking piece 24, and a second matching inclined surface for matching with the first matching inclined surface is arranged on the side surface of the second insertion locking piece 44.

Through the cooperation between the above-mentioned inserted blocks and slot, between first cartridge locking block 24 and the second cartridge locking block 44, can let back lid 4 install on basic back 2 steadily, this mode makes back lid 4 need not to adopt the bolt fastening moreover, has effectively simplified the installation step of back lid 4.

As preferred embodiment, be equipped with roating seat 8 on the back lid 4, roating seat 8 supports on the rear side of back lid 4, integrated into one piece sets up between roating seat 8 and the back lid 4, be equipped with on the roating seat 8 and connect shaft hole 81, rotatable mounting has the connection pivot 9 in the connection shaft hole 81, be equipped with the rotatory through-hole 61 that is used for supplying to connect pivot 9 to pass on the handle 6, handle 6 is connected with connection pivot 9, and connection pivot 9 is the bolt.

As a preferred embodiment, a first spring groove 62 coaxial with the rotation through hole 61 is formed in the handle 6, a first clamping groove 63 is formed in the first spring groove 62, a second spring groove 82 coaxial with the connection shaft hole 81 is formed in the rotation base 8, the second spring groove 82 is located at the outer end of the connection shaft hole 81, a second clamping groove 83 is formed in the second spring groove 82, the reset spring 7 is a torsion spring sleeved on the connection rotating shaft 9, two ends of the reset spring 7 are respectively inserted into the first spring groove and the second spring groove 82, one torsion pin of the reset spring 7 is inserted into the first clamping groove 63, and the other torsion pin is inserted into the second clamping groove 83, so that connection between the reset spring 7 and the handle 6 and the connection base is achieved.

As a preferred embodiment, a rotation limiting structure for limiting the rotation unfolding angle of the handle 6 is arranged between the handle 6 and the rotating base 8, the rotation limiting structure comprises a rotation limiting block 80 arranged on the rotating base 8 and a rotation limiting groove 60 arranged on the handle 6, the rotation limiting block 80 extends into the rotation limiting groove 60, the rotation limiting block 80 is integrally formed on the rotating base 8, when the rotation limiting block 80 is swung and opened by a user, the rotation limiting groove 60 rotates along with the handle 6 until an opening limiting surface of the rotation limiting groove 60 abuts against the rotation limiting block 80, and then the handle 6 is opened to the maximum angle and cannot be opened continuously; when the user releases the handle 6, the handle 6 is rotationally reset under the action of the reset spring 7, and at this time, the reset limiting surface of the rotation limiting groove 60 can be abutted against the rotation limiting block 80 or the handle 6 is abutted against the rear side of the front backrest 5, so that the reset position of the handle 6 is fixed.

The above description is only the preferred embodiment of the present invention, and the technical solutions of the objects of the present invention are all within the protection scope of the present invention as long as the objects are achieved by the substantially same means.

Claims

1. A double-back functional chair with a reset handle comprises a chair seat plate (1) and a basic backrest (2) arranged at the rear end of the chair seat plate (1); the method is characterized in that: a backrest cover (4) is arranged on the rear side of the basic backrest (2), a front backrest (5) is arranged on the front side of the basic backrest (2), and the rear side of the front backrest (5) is fixedly connected to the basic backrest (2) or/and the backrest cover (4); install on back lid (4) and to let the rotatory handle (6) that expand the use of user, be equipped with between handle (6) and back lid (4) and be used for driving about handle (6) and rotate reset spring (7) that reset, handle (6) are rotatory to be drawn in to preceding back (5) rear side under reset spring (7).

2. The chair with the reset handle as claimed in claim 1, wherein: the front side of the upper part of the basic backrest (2) is attached to the rear side of the lower part of the front backrest (5), the basic backrest (2) is provided with an insertion hole (25), and the rear side of the front backrest (5) is provided with an insertion lug (51) inserted into the insertion hole (25).

3. The chair with the reset handle as claimed in claim 1, wherein: an installation slot (20) is formed in the rear side of the base backrest (2), an insertion opening of the installation slot (20) is formed in the upper end of the base backrest (2), and the backrest cover (4) is inserted into the installation slot (20); the side face of the backrest cover (4) is provided with a side edge insertion block (41), the installation slot (20) is internally provided with side edge slots (21), and each side edge slot (21) is inserted with one side edge insertion block (41).

4. The double-back functional chair with the reset handle as claimed in claim 3, wherein: the bottom of the backrest cover (4) is provided with a bottom inserting block (42), the installation slot (20) is internally provided with a bottom slot (22), and the bottom inserting block (42) is inserted and matched in the bottom slot (22).

5. The double-back functional chair with the reset handle as claimed in claim 3, wherein: the front side of the backrest cover (4) is provided with an accommodating groove, a built-in inserting block (43) is arranged in the accommodating groove, a built-in inserting groove (23) is arranged in the installation inserting groove (20), and the built-in inserting block (43) is inserted and matched in the built-in inserting groove (23).

6. The chair with the reset handle as claimed in claim 3, wherein: a first plug-in locking block (24) is arranged in the mounting slot (20); the backrest cover (4) is provided with a second plug-in locking block (44) which is matched with the first plug-in locking block (24) to lock the backrest cover (4) on the basic backrest (2); when the backrest cover (4) is inserted into the installation slot (20), the bottom of the first insertion locking piece (24) abuts against the top of the second insertion locking piece (44).

7. The chair with the reset handle as claimed in claim 1, wherein: be equipped with roating seat (8) on back lid (4), be equipped with on roating seat (8) and connect shaft hole (81), it has connection pivot (9) to rotate to install in connection shaft hole (81), handle (6) are connected with connection pivot (9).

8. The chair with the reset handle as claimed in claim 7, wherein: be equipped with first spring groove (62) on handle (6), be equipped with first draw-in groove (63) in first spring groove (62), be equipped with second spring groove (82) on roating seat (8), be equipped with second draw-in groove (83) in second spring groove (82), the both ends cartridge respectively of reset spring (7) is in first spring groove (62) and second spring groove (82), one of them of reset spring (7) is turned round the foot cartridge and is in first draw-in groove (63), and another is turned round the foot cartridge and is in second draw-in groove (83).

9. The chair with the reset handle as claimed in claim 7, wherein: a rotation limiting structure used for limiting the rotation unfolding angle of the handle (6) is arranged between the handle (6) and the rotating seat (8).

10. The chair with the reset handle as claimed in claim 9, wherein: the rotary limiting structure comprises a rotary limiting block (80) arranged on the rotary seat (8) and a rotary limiting groove (60) arranged on the handle (6), and the rotary limiting block (80) extends into the rotary limiting groove (60).