CN211511182U

CN211511182U - Movable chair back

Info

Publication number: CN211511182U
Application number: CN201922135342.5U
Authority: CN
Inventors: 程兵
Original assignee: Guangzhou Xinbo Industrial Co ltd
Current assignee: Guangzhou Xinbo Industrial Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-09-18
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a movable chair back, which comprises an inclusion body, a bottom frame, a back frame and a support rod, wherein the bottom frame, the back frame and the support rod are arranged in the inclusion body; one end of the supporting rod is fixed in the middle of the transverse frame, the other end of the supporting rod is fixed on the bottom frame to support the back frame, the chair back can be adjusted at any time at the position of the sofa according to needs, the structure is simple, and the requirements of different people are met.

Description

Movable chair back

Technical Field

The utility model relates to a sofa technical field, in particular to portable back of the chair.

Background

In the existing sofa, the sofa backrest and the sofa are fixed, so that the requirements of people on different sofa performances cannot be met, for example, when the chair back is not needed, the chair back is moved away to increase the available area of the sofa, and in short, a movable chair back is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a chair back which can be moved according to the needs.

The purpose of the utility model is realized through the following technical scheme: a movable chair back comprises an inclusion body, a bottom frame, a back frame and a support rod, wherein the bottom frame, the back frame and the support rod are installed in the inclusion body; one end of the supporting rod is fixed in the middle of the transverse frame, and the other end of the supporting rod is fixed on the bottom frame so as to support the back frame.

In the above scheme, the bottom frame comprises a left beam, a front beam, a right beam and a rear beam which are fixed together end to end, and the other end of the supporting rod is fixed in the middle of the front beam.

As an improvement of the scheme, a bottom plate is arranged in a space defined by the left beam, the front beam, the right beam and the rear beam in the bottom frame, and a plurality of supporting beams of the bottom plate are arranged between the front beam and the rear beam.

As an improvement of the scheme, the left beam is butted with the first vertical frame, and a left transition arc is arranged between the left beam and the first vertical frame; the right beam is in butt joint with the second vertical frame, and a right transition arc is arranged between the right beam and the second vertical frame; and two connecting rods which are arranged side by side are arranged between the left transition circular arc and the right transition circular arc.

Preferably, the shape of the transverse frame is an outer arc.

Preferably, the first vertical frame, the second vertical frame and the support rod are all composed of two sections of hinged rods hinged with each other.

As the improvement scheme of above-mentioned scheme, in the bracing piece, the length of the articulated rod of latter half is unanimous with the length of left beam or right beam, and the middle part of back beam is equipped with the snap-in groove of bracing piece pin joint, and when the back of the chair was rolled over down, the pin joint of bracing piece inserted the snap-in groove and fixed the back of the chair position.

As an improvement of the above scheme, a pair of left hinge rods hinged to each other is arranged between the upper half part of the first vertical frame and the left beam, and an avoiding groove in the upper half part of the left hinge rod is arranged at the upper half part of the first vertical frame; a pair of mutually-hinged right hinged rods is arranged between the upper half part of the second vertical frame and the right beam, and a avoiding groove of the right hinged rods is formed in the upper half part of the second vertical frame.

As a modified scheme of the scheme, the free ends of the left hinged rods are provided with cylindrical left sliding blocks, and the free ends of the right hinged rods are provided with cylindrical right sliding blocks.

The utility model discloses for prior art have following advantage and effect:

when the utility model is used, the chair back is directly placed on the sofa, the support rod supports the back frame, the back of a person leans against the support surface formed by the transverse frame, the first vertical frame and the second vertical frame, the support rod can prevent the transverse frame from collapsing due to the fact that the main stress point is on the support rod, and the multilayer cotton can be arranged between the back frame and the inclusion body, so that the comfort level of the person leaning against the chair back is improved; the chair back can be adjusted at any time at the position of the sofa according to the needs, has a simple structure, and meets the requirements of different people.

Second, the utility model discloses a back of the chair bottom surface is equipped with the bottom plate, fixes the bottom plate from the bottom plate top surface through a supporting beam, and the bottom plate bottom surface can increase the frictional force of the back of the chair and sofa, prevents that the people from when leaning on, and the back of the chair from producing the aversion

Third, first vertical frame, second vertical frame, bracing piece all comprise two sections articulated rods that are articulated each other to make: the chair back can be folded down along the hinge rod and forms a new shape: the pillow, thereby reach a dual-purpose of thing, furtherly, when the back of the chair formed the pillow, the first half of left hinge rod was absorbed in the groove of dodging of the first half of first vertical frame, the lower half of left hinge rod formed the support to the first half of first vertical frame, the intersection proximity of both, the first half of right hinge rod is absorbed in the groove of dodging of the first half of second vertical frame 4, the lower half of right hinge rod formed the support to the first half of second vertical frame, thereby the shape of the fixed pillow that can firmly prevents the pillow and warp.

Drawings

Fig. 1 is an overall configuration diagram of a movable seatback in embodiment 1.

Fig. 2 is an internal structural view of the movable seatback in embodiment 1.

Fig. 3 is an internal structural view of the movable seatback in embodiment 2.

Fig. 4 is an internal structural view of the folded movable seatback in embodiment 2.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

Example 1

Referring to fig. 1 and 2, a movable chair back comprises an inclusion 1, and a bottom frame, a back frame and a support rod 2 which are arranged in the inclusion 1, wherein the back frame comprises a first vertical frame 3, a second vertical frame 4 and a transverse frame 5, the first vertical frame 3 and the second vertical frame 4 are arranged side by side and are respectively inclined at the two sides of the bottom frame at the same angle, and the transverse frame 5 is fixedly arranged between the first vertical frame 3 and the second vertical frame 4; 2 one end of bracing piece is fixed at horizontal frame 5 middle part, the other end is fixed on the bottom frame, in order to support the back frame, in the time of the use, directly put the back of the chair on the sofa, 2 back frames of bracing piece are held, people's back leans on horizontal frame 5, first vertical frame 3, on the holding surface that the vertical frame 4 of second formed, because main stress point is on bracing piece 2, and bracing piece 2 can prevent that horizontal frame 5 from collapsing, and can lay the multilayer cotton between back frame and the inclusion 1, improve the comfort level when the people leans on the back of the chair, and can make the back of the chair move other positions of sofa as required.

In a preferred embodiment, the bottom frame comprises a left beam 6, a front beam 7, a right beam 8 and a rear beam 9 which are fixed together end to end, and the other end of the support rod 2 is fixed in the middle of the front beam 7.

In a preferred embodiment, a bottom plate 10 is arranged in a space surrounded by the left beam 6, the front beam 7, the right beam 8 and the rear beam 9 in the bottom frame, a supporting beam 11 of the bottom plate 10 is arranged between the front beam 7 and the rear beam 9, the supporting beam 11 fixes the bottom plate 10 from the top surface of the bottom plate 10, and the bottom surface of the bottom plate 10 can increase the friction force between the chair back and the sofa to prevent the chair back from shifting when a person leans against the bottom frame.

In the scheme, the left beam 6 is butted with the first vertical frame 3, and a left transition arc 12 is arranged between the left beam and the first vertical frame; the right beam 8 is butted with the second vertical frame 4, and a right transition arc 13 is arranged between the right beam and the second vertical frame; be equipped with two connecting rods 14 side by side between left side transition circular arc 12 and the right side transition circular arc 13, left and right transition circular arc can prevent turning and the hard contact of sofa, and three connecting rod 14 side by side can improve the overall structure intensity of bottom frame and back frame, improves the service life of whole back of the chair. The transverse frame 5 is in an outer arc shape and can provide buffering support for the back of a person to embrace.

Example 2

This embodiment is added to embodiment 1, and the other structure is the same as embodiment 1 except for the following.

Referring to fig. 3-4, in the present embodiment, the first vertical frame 3, the second vertical frame 4 and the support rod 2 are all composed of two sections of hinged rods hinged to each other, so that: the chair back can be folded down along the hinge rod and forms a new shape: the pillow can achieve the purpose of dual purposes.

As a further improvement scheme, in the bracing piece 2, the length of the hinge rod of the lower half part is consistent with that of the left beam 6 or the right beam 8, the middle part of the back beam 9 is provided with a clamping groove of the hinge point of the bracing piece, and when the chair back is folded down, the hinge point of the bracing piece is inserted into the clamping groove to fix the position of the chair back, so that the pillow is prevented from collapsing.

In order to further increase the strength of the pillow, a pair of left hinged rods 16 which are hinged with each other is arranged between the upper half part of the first vertical frame 3 and the left beam 6, and an avoiding groove of the upper half part of the left hinged rod is arranged at the upper half part of the first vertical frame 3; a pair of mutually hinged right hinged rods 17 is arranged between the upper half part of the second vertical frame 4 and the right beam 8, and an avoiding groove of the right hinged rods 17 is arranged on the upper half part of the second vertical frame 4. When the back of the chair is folded down and is formed the pillow, the first half of left hinge rod 16 is absorbed in the groove of dodging of the first half of first vertical frame 3, the lower half of left hinge rod 16 forms the support to the first half of first vertical frame 3, both intersect nearly 90 degrees, form strong support, the first half of right hinge rod 17 is absorbed in the groove of dodging of the first half of second vertical frame 4, the lower half of right hinge rod 17 forms the support to the first half of second vertical frame 4, thereby the shape of fixed pillow that can firmly, prevent to warp.

The free ends of the left hinge rods 16 are provided with cylindrical left sliders 18, and the free ends of the right hinge rods 17 are provided with cylindrical right sliders 15. The left slider 18 and the right slider 15 can play a role in guiding, when the upper half of the left hinge rod 16 is trapped in an avoiding groove of the upper half of the first vertical frame 3, the left slider 18 is just blocked by the hinge point of the left hinge rod 16 and cannot move, and the upper part of the first vertical frame 3, the lower part of the first vertical frame 3, the left beam 6 and the lower half of the left hinge rod 16 form a stable quadrilateral structure. When the upper half part of the right hinge rod 17 sinks into the avoiding groove of the upper half part of the second vertical frame 4, the right sliding block 15 is just blocked by the hinge point of the right hinge rod 17 and cannot move, and the upper part of the second vertical frame 4, the lower part of the second vertical frame 4, the right beam 8 and the lower half part of the right hinge rod 17 form a stable quadrilateral structure.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. A movable chair back is characterized by comprising an inclusion body, a bottom frame, a back frame and a support rod, wherein the bottom frame, the back frame and the support rod are installed in the inclusion body; one end of the supporting rod is fixed in the middle of the transverse frame, and the other end of the supporting rod is fixed on the bottom frame so as to support the back frame.

2. The movable chair back of claim 1, wherein the bottom frame comprises a left beam, a front beam, a right beam and a rear beam fixed together end to end, and the other end of the support bar is fixed to the middle of the front beam.

3. The movable chair back of claim 2, wherein the bottom frame has a bottom plate in a space defined by the left beam, the front beam, the right beam and the rear beam, and a plurality of bottom plate support beams are disposed between the front beam and the rear beam.

4. The movable chair back of claim 2, wherein the left beam is in butt joint with the first vertical frame, and a left transition arc is arranged between the left beam and the first vertical frame; the right beam is in butt joint with the second vertical frame, and a right transition arc is arranged between the right beam and the second vertical frame; and two connecting rods which are arranged side by side are arranged between the left transition circular arc and the right transition circular arc.

5. The movable chair back of claim 1, wherein the transverse frame is shaped as an outer arc.

6. The movable chair back of claim 1, wherein the first vertical frame, the second vertical frame and the support bar are each comprised of two sections of hinged bars that are hinged to each other.

7. The movable chair back according to claim 6, wherein the length of the hinge rod at the lower half part of the support rods is consistent with that of the left beam or the right beam, the middle part of the rear beam is provided with a clamping groove for the hinge point of the support rods, and when the chair back is folded down, the hinge point of the support rods is inserted into the clamping groove to fix the position of the chair back.

8. The movable chair back according to claim 6, wherein a pair of left hinge rods hinged to each other is provided between the left beam and the upper half of the first vertical frame, and the upper half of the first vertical frame is provided with an avoidance groove of the upper half of the left hinge rod; a pair of mutually-hinged right hinged rods is arranged between the upper half part of the second vertical frame and the right beam, and a avoiding groove of the right hinged rods is formed in the upper half part of the second vertical frame.

9. The movable chair back of claim 8, wherein the free ends of the left and right hinge rods are each provided with a cylindrical left slider and the free ends of the right hinge rods are each provided with a cylindrical right slider.