CN214510361U

CN214510361U - Chair frame

Info

Publication number: CN214510361U
Application number: CN202120778121.4U
Authority: CN
Inventors: 陈萍
Original assignee: Zhejiang Xinrui Machinery Manufacturing Co ltd
Current assignee: Zhejiang Xinrui Machinery Manufacturing Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-10-29
Anticipated expiration: 2031-04-16

Abstract

The utility model discloses a chair frame, which comprises a back support and a seat support, wherein the seat support comprises a sitting frame and two handrail supporting tubes which are arranged in bilateral symmetry, the sitting frame is of an annular structure, the handrail supporting tubes are positioned above the sitting frame, the handrail supporting tubes are provided with head ends and tail ends along the length direction, the tail ends of the two handrail supporting tubes are connected through a backrest supporting tube, the head ends of the handrail supporting tubes are bent downwards and connected with the sitting frame, and a sitting space is enclosed between the backrest supporting tube and the two handrail supporting tubes; the back support is detachably connected with the backrest support tube and can be switched between a leaning position and a containing position relative to the seat support; in the leaning position, the back support is positioned above the middle part of the seat support; in the stowed position, the back support is located within the seating space. The back support is positioned in the sitting space, so that the whole space volume of the chair frame is greatly reduced, and the chair frame is convenient to store and transport.

Description

Chair frame

Technical Field

The utility model relates to a seat field, more specifically the utility model relates to a seat chair frame that says so.

Background

The seat is the most common furniture in a living room, but the seat surface of the seat is harder than a hard plate no matter a wooden chair, a bamboo rattan chair and the like, and the seat feels too cold when being seated in winter. In recent years, with the rapid development of furniture industry in China, warm-keeping comfortable sofa chairs are produced. The sofa chair comprises the chair frame and the cushion outer cover, and the assembly can be completed only by sleeving the cushion outer cover on the chair frame. However, the existing chair frame is mostly fixed and can not be disassembled and assembled, so that the size is large, the occupied space is large, and the transportation and storage cost is greatly increased. And the components such as the handrail and the like in the prior chair frame are all of plate-shaped structures, so the cost is relatively high.

Disclosure of Invention

In order to solve the above technical problem, the present invention provides a seat frame that can be disassembled and assembled to reduce the transportation and storage volume.

Solve the technical problem, the utility model discloses take following technical scheme:

a seat frame comprises a back support and a seat support, wherein the seat support comprises a seat frame and two armrest supporting tubes which are arranged in bilateral symmetry, the seat frame is of an annular structure, the armrest supporting tubes are positioned above the seat frame, the armrest supporting tubes are provided with head ends and tail ends along the length direction, the tail ends of the two armrest supporting tubes are connected through a backrest supporting tube, the head ends of the armrest supporting tubes are bent downwards and connected with the seat frame, and a seat space is defined by the backrest supporting tube and the two armrest supporting tubes; the back support is detachably connected with the backrest support tube, and the back support can be switched between a leaning position and a containing position relative to the seat support; in the rest position, the back bracket is positioned above the middle of the seat bracket; in the stowed position, the back bracket is located within the seating space.

In a further aspect, the back bracket is rotatably connected to the back support tube, and the back bracket is rotatable relative to the seat bracket to switch between a resting position and a stowed position in which a head end of the back bracket is located within the seating space and proximate to the seating frame. The back support can be switched between the bearing position and the accommodating position only by rotating the back support, and the operation is convenient and fast.

In a further scheme, the seat support further comprises a rotating shaft, a first connecting plate extending downwards is arranged at the bottom end of the back support, a second connecting plate extending upwards is arranged on the armrest supporting tube, and the rotating shaft penetrates through the first connecting plate and the second connecting plate, so that the back support can rotate around the rotating shaft relative to the seat support.

In a further scheme, one of the back support and the seat support is provided with a limiting plate, and in the bearing position, the other one of the back support and the seat support is abutted against the limiting plate, so that the top end of the back support cannot rotate in the direction away from the sitting space. By arranging the limiting plate, when the back support rotates to the bearing position, the limiting plate plays a limiting role in the back support, and the back support is prevented from rotating backwards without limit.

In a further scheme, the limiting plate is arranged at the bottom end of the back support, a protrusion extending forwards is arranged on the limiting plate, the protruding tail end of the protrusion is connected with the limiting plate, the protruding head end of the protrusion bends upwards to form a flange, a clamping groove is formed between the flange and the limiting plate, the limiting plate abuts against the back support pipe at the leaning position, and the back support pipe is clamped in the clamping groove. So that the connection between the back support and the seat support is more stable.

In a further scheme, the seat support further comprises a bolt, a first fixing plate extending downwards is arranged at the bottom end of the back support, a second fixing plate extending upwards is arranged on the armrest supporting tube, and the bolt penetrates through the first fixing plate and the second fixing plate, so that the back support and the seat support are detachably connected.

In a further aspect, a sleeve is disposed on one of the back support and the armrest support tube, and an insertion rod is disposed on the other of the back support and the armrest support tube and inserted into the sleeve.

The back support can be matched with the seat support in a plugging mode only by aligning the inserted bar with the sleeve and inserting the inserted bar into the sleeve, so that the back support and the seat support are relatively fixed, and when the back support is required to be placed into a sitting space, the back support is lifted to enable the inserted bar to be detached from the sleeve in a separating mode, and the convenience and the rapidness are achieved.

In a further scheme, the seat frame further comprises a plurality of vertically arranged support rods, one ends of the support rods are connected with the armrest support tube, and the other ends of the support rods are connected with the seat frame. The supporting rods play a role in reinforcing and supporting the handrail supporting tube, and the strength of the whole structure is improved.

In a further scheme, the backrest support tube further comprises a spring and a bolt, wherein a third fixing plate is arranged at the bottom end of the back support, the third fixing plate is provided with the spring, one end of the spring is connected with the third fixing plate, the other end of the spring is connected with a sliding plate, a fourth fixing plate is arranged on the backrest support tube, and a limiting hole is formed in the fourth fixing plate; and at the bearing position, the bolt sequentially penetrates through the third fixing plate and the sliding plate and is inserted into the limiting hole, and the bolt is fixedly connected with the sliding plate. The third fixing plate and the sliding plate are sequentially penetrated through by the bolt and inserted into the limiting hole, so that the back support and the seat support are further fixed and limited, and the back support and the seat support are prevented from being separated when being leaned.

Advantageous effects

The left end and the right end of the seat support are bent forwards relative to the middle of the seat support to form a sitting space, the back support can rotate between a supporting position and a containing position relative to the seat support, and when the back support rotates to the containing position, the back support is located in the sitting space, so that the overall space volume of the chair frame is greatly reduced, and the chair frame is convenient to store and transport. When the back support rotates to the bearing position, the back support plays a normal back supporting role. And because the seat support comprises the seat frame and two handrail supporting tubes which are arranged in bilateral symmetry, compared with the traditional plate-shaped structure, the cost is relatively low.

Drawings

FIG. 1 is a disassembled view, i.e., a partially enlarged view, of a seat frame in embodiment 1;

FIG. 2 is a schematic view of the structure of a seat frame in embodiment 1 with the back support in a resting position;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 2;

FIG. 5 is a schematic view of the structure of the seat frame in the retracted position of the back frame according to embodiment 1;

FIG. 6 is a disassembled view of a seat frame in embodiment 2;

fig. 7 is an exploded view of a seat frame in embodiment 3.

The reference numerals in the schematic drawings illustrate:

1-back support, 2-seat support, 3-sitting frame, 4-armrest support tube, 5-backrest support tube, 6-sitting space, 7-support rod, 8-connecting shaft, 9-first connecting plate, 10-second connecting plate, 11-limiting plate, 12-protrusion, 13-flanging, 14-clamping groove, 15-bolt, 16-first fixing plate, 17-second fixing plate, 18-inserted rod, 19-sleeve, 20-third fixing plate, 21-fourth fixing plate, 22-sliding plate, 23-bolt and 24-spring.

Detailed Description

For a further understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1: referring to fig. 1-5, the present embodiment provides a seat frame, which includes a back support 1 and a seat support 2, wherein the seat support 2 includes a seat frame 3 and two armrest support tubes 4 disposed in bilateral symmetry. The seating frame 3 is of an annular configuration. The armrest supporting tubes 4 are located above the sitting frame 3, the armrest supporting tubes 4 have a head end and a tail end along the length direction, the tail ends of the two armrest supporting tubes 4 are connected through the backrest supporting tube 5, and the head ends of the armrest supporting tubes 4 are bent downwards and connected with the sitting frame 3. A sitting space 6 is enclosed between the backrest support tube 5 and the two handrail support tubes 4. A plurality of support rods 7 extending along the vertical direction are further arranged between the handrail support tube 4 and the sitting frame 3, and one end of each support rod 7 is connected with the handrail support tube 4, while the other end of each support rod 7 is connected with the sitting frame 3. The supporting rod 7 plays a role in reinforcing and supporting the handrail supporting tube 4, so that the overall structural strength is improved.

In this embodiment, the back support 1 is detachably connected to the backrest support tube 5. Specifically, the back frame 1 is rotatably connected to the back support pipe 5, and the back frame 1 is rotatable relative to the seat frame 2 to be switched between the seating position and the retracted position. More specifically, the seat frame further includes a connecting shaft 8, a first connecting plate 9 extending downward is disposed at the bottom end of the back support 1, a second connecting plate 10 extending upward is disposed on the armrest support tube 4, and the rotating shaft penetrates through the first connecting plate 9 and the second connecting plate 10, so that the back support 1 can rotate around the rotating shaft relative to the seat support 2. In the present embodiment, the second connecting plate 10 is provided at the rear end of the armrest support tube 4, but the second connecting plate 10 may also be provided on the backrest support tube 5 while ensuring that the back support 1 is rotatable about the axis of rotation relative to the seat support 2.

As shown in fig. 2, when the bracket needs to be sleeved into the cushion cover for a user to sit, the back bracket 1 is rotated to a leaning position, and the back bracket 1 is located above the middle of the seat bracket 2 (i.e. above the back support tube 5). The user sits in the seat space and can rest on the back support 1 on his back.

In order to avoid the back support 1 from rotating backwards without limitation, the bottom end of the back support 1 is provided with the limiting plate 11, when the back support 1 rotates to the leaning position, the plate surface of the limiting plate 11 is abutted against the backrest support tube 5, so that the top end of the back support 1 can not rotate towards the direction far away from the sitting space 6. The limiting plate 11 is arranged to limit the back support 1, so that the back support 1 is prevented from tilting backwards without limitation. As a preferred embodiment, as shown in fig. 1 and 3, the position-limiting plate 11 is further provided with a protrusion 12 extending forward. The tail end of the bulge 12 is connected with the limiting plate 11, the head end of the bulge 12 is bent upwards to form a flange 13, and a clamping groove 14 is formed between the flange 13 and the limiting plate 11. When the plate surface of the limit plate 11 abuts against the backrest support tube 5, as shown in fig. 2, the backrest support tube 5 is clamped in the clamping groove 14. So that the connection between the back support 1 and the seat support 2 is more stable.

It should be noted that although the position limiting plate 11 is disposed at the bottom end of the back support 1 in the present embodiment, it is also feasible to dispose the position limiting plate 11 on the seat support 2, for example, on the backrest support tube 5, and when the back support 1 rotates to the leaning position, the position limiting plate 11 abuts against the back support 1.

In the present embodiment, as shown in fig. 4, a third fixing plate 20 is disposed at the bottom end of the back support 1, a spring 24 is disposed on the third fixing plate 20, one end of the spring 24 is connected to the third fixing plate 20, and the other end of the spring 24 is connected to the sliding plate 22. Meanwhile, a bolt 23 penetrates through the third fixing plate 20, the bolt 23 is slidably connected with the third fixing plate 20, a spring 24 is sleeved on the outer wall of the bolt 23, and one end of the bolt 23 penetrates through the sliding plate 22 and is fixedly connected with the sliding plate 22. A fourth fixing plate 21 is arranged on the backrest support tube 5, and a limiting hole is arranged on the fourth fixing plate 21. When the back frame 1 is rotated to the resting position, the latch 23 is pulled first, so that the sliding plate 22 is close to the third fixing plate 20, and the spring 24 is compressed. When the back support 1 rotates to the leaning position, the bolt 23 is loosened, the spring 24 drives the bolt 23 to be inserted into the limiting hole to realize locking, so that the back support 1 and the seat support 2 are kept relatively fixed, and the back support 1 is prevented from being overturned forwards in the leaning process.

As shown in fig. 3, when the back frame 1 needs to be stored or transported, the back frame 1 is rotated so that the back frame 1 is rotated to the storage position. At this time, the head end of the back support 1 is rotated into the seating space 6, and the head end of the back support 1 is close to the seating frame 3. Compare fig. 2 and fig. 3, it is easy to understand, when back support 1 rotates to accomodating the position, back support 1 is located and sits space 6 for the whole height of chair frame reduces, has reduced the whole occupation space of chair frame by a wide margin, thereby is convenient for the storage and the transport of chair frame.

Example 2: referring to fig. 6, the main difference between the seat frame of the present embodiment and the seat frame of the above embodiment 1 is that in the present embodiment, the back support 1 and the backrest support tube 5 are detachably connected by a bolt 15. Specifically, a first fixing plate 16 extending downwards is arranged at the bottom end of the back support 1, a second fixing plate 17 extending upwards is arranged on the armrest support tube 4, and the bolt 15 penetrates through the first fixing plate 16 and the second fixing plate 17, so that the back support 1 and the seat support 2 can be detachably connected.

When a user needs to sit on the cushion outer cover sleeved in the support, the back support 1 is placed above the backrest support tube 5, the first fixing plate 16 is overlapped with the second fixing plate 17, and the through hole of the first fixing plate 16 is aligned with the through hole of the second fixing plate 17. The bolt 15 passes through the through holes of the first fixing plate 16 and the second fixing plate 17 and is sleeved with a nut to be locked, so that the back support 1 and the seat support 2 are kept relatively fixed for a user to sit. When the chair frame needs to be stored or transported, only the bolts 15 need to be detached, so that the back support 1 is separated from the seat support 2. Then, the back support 1 is placed in the sitting space 6 for storage, and the whole volume of the chair frame can be reduced.

Example 3: referring to fig. 7, the main difference between the seat frame of the present embodiment and the seat frame of the above embodiment 1 is that in the present embodiment, the bottom end of the back support 1 is provided with an inserting rod 18, and the armrest support tube 4 is provided with a sleeve 19. When the bracket is sleeved into the cushion outer cover for a user to sit, the insertion rod 18 is inserted into the sleeve 19 to be in internal splicing fit, and the fixing between the back bracket 1 and the seat bracket 2 can be completed. When the chair frame needs to be stored or transported, the back support 1 can be moved to be placed in the sitting space 6 for storage only by lifting the back support 1 upwards and pulling the inserting rod 18 out of the sleeve 19, so that the whole volume of the chair frame is reduced.

It should be noted that, although the rod 18 is disposed at the bottom end of the back support 1, the sleeve 19 is disposed on the armrest support tube 4. It is also possible, however, for the plug-in rod 18 to be arranged on the armrest support tube 4 and for the sleeve 19 to be arranged on the bottom end of the back support 1 in a plug-in fit. And it is easily understood that it is also possible to provide the plunger 18 or the sleeve 19 on the backrest support pipe 5.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. A seat frame is characterized by comprising a back support and a seat support, wherein the seat support comprises a sitting frame and two armrest supporting tubes which are arranged in a bilateral symmetry mode, the sitting frame is of an annular structure, the armrest supporting tubes are located above the sitting frame, the armrest supporting tubes are provided with head ends and tail ends along the length direction, the tail ends of the two armrest supporting tubes are connected through a backrest supporting tube, the head ends of the armrest supporting tubes are bent downwards and connected with the sitting frame, and a sitting space is defined by the backrest supporting tube and the two armrest supporting tubes; the back support is detachably connected with the backrest support tube, and the back support can be switched between a leaning position and a containing position relative to the seat support; in the rest position, the back bracket is positioned above the middle of the seat bracket; in the stowed position, the back bracket is located within the seating space.

2. A seat frame according to claim 1, wherein the back bracket is rotatably connected to the back support tube, the back bracket being rotatable relative to the seat bracket to switch between a seating position and a stowed position in which a head end of the back bracket is located within the seating space and proximate the seating frame.

3. The seat frame of claim 2, further comprising a rotation shaft, wherein a first connecting plate extending downward is disposed at a bottom end of the back support, a second connecting plate extending upward is disposed at the armrest support tube, and the rotation shaft penetrates the first connecting plate and the second connecting plate, so that the back support can rotate around the rotation shaft relative to the seat support.

4. A seat frame according to claim 2, wherein one of the back and seat supports is provided with a stop plate against which the other of the back and seat supports abuts in the rest position such that the top end of the back support cannot rotate in a direction away from the seating space.

5. The seat chair frame according to claim 4, wherein the limiting plate is arranged at the bottom end of the back support, a protrusion extending forwards is arranged on the limiting plate, the tail end of the protrusion is connected with the limiting plate, the head end of the protrusion is bent upwards to form a flange, a clamping groove is formed between the flange and the limiting plate, the limiting plate abuts against the back support pipe in the backrest bearing position, and the back support pipe is clamped in the clamping groove.

6. The seat frame of claim 1, further comprising a bolt, wherein a first fixing plate extending downwards is disposed at the bottom end of the back support, a second fixing plate extending upwards is disposed on the armrest support tube, and the bolt penetrates through the first fixing plate and the second fixing plate, so that the back support and the seat support are detachably connected.

7. The seat frame of claim 1, wherein a sleeve is disposed on one of the back support and the armrest support tube, and a plunger is disposed on the other of the back support and the armrest support tube, the plunger being inserted within the sleeve.

8. The seat frame of claim 1, further comprising a plurality of vertically disposed support rods, one end of the support rods being connected to the armrest support tube and the other end of the support rods being connected to the seating frame.

9. The seat frame of claim 1, further comprising a spring and a bolt, wherein a third fixing plate is disposed at the bottom end of the back support, a spring is disposed on the third fixing plate, one end of the spring is connected to the third fixing plate, the other end of the spring is connected to a sliding plate, a fourth fixing plate is disposed on the backrest support tube, and a limiting hole is disposed on the fourth fixing plate; and at the bearing position, the bolt sequentially penetrates through the third fixing plate and the sliding plate and is inserted into the limiting hole, and the bolt is fixedly connected with the sliding plate.