CN217365118U

CN217365118U - Back of chair frame and seat

Info

Publication number: CN217365118U
Application number: CN202221376258.8U
Authority: CN
Inventors: 姬兴阳
Original assignee: Anji Sanjiu Smart Home Technology Co ltd
Current assignee: Anji Sanjiu Smart Home Technology Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-09-06
Anticipated expiration: 2032-06-02

Abstract

The utility model relates to a back of chair frame and seat, including the body, the body has two supporting beam and bears the seat, and two supporting beam cross connection and backward side slope are formed with the handle on its upper end, and a supporting beam crosses and extends to the front side in its lower extreme and forms the seat support link, encloses into a closed loop frame body between handle and two supporting beam and the seat support link. Further, a chair is provided, which comprises a supporting chassis, wherein the connecting end of the chair seat is connected to a wane of the supporting chassis; the front side of the bearing seat is contracted inwards to form a front chamber, the front chamber is internally provided with a mounting seat, the front side of the mounting seat is connected with a chair back, and the chair back is also connected with a waist support. The handle and the chair seat connecting end which are formed by extending and intersecting the upper end and the lower end of the supporting beam respectively form a closed frame body, and when the supporting beam is leaned, stress can be effectively transmitted and dispersed; the stress is prevented from being concentrated too singly; the support performance of the chair back frame is better, and the structural strength is improved; and a closed loop is formed, so that the whole structure is more regular.

Description

Back of chair frame and seat

Technical Field

The utility model belongs to the technical field of the thing to sit on, especially, relate to a back of chair frame and seat.

Background

The chair is the instrument of a work study or rest that we often used, and for the convenience of leaning on, all can set up to have elastic back of the chair in order to improve the travelling comfort that uses usually, and in order to realize the fixed of the back of the chair, connect the back of the chair and handrail seat and form wholly, the problem that exists from this lies in back of the chair both sides and connecting fixed back, its deformability greatly reduced, also greatly reduced of travelling comfort when leaning on.

The existing chair back is fixed by being connected to the chair back frame, but the existing chair back frame is mostly of a single column type or single plate type supporting structure, and the upper end of the existing chair back frame extends out of the supporting arm to support and connect the chair back, so that the supporting effect can be realized, but the supporting arm can deform and break under long-time use, and the column type structure is not stable enough, is troublesome to connect through the extended supporting arm, and is not beautiful enough.

Disclosure of Invention

In order to solve the technical problem, the utility model aims at providing a back of a chair frame forms the closed loop frame body through two spinal branch supporting beam and a supporting beam, handle and seat support connecting end to form more stable support, the crooked of forming everywhere on a supporting beam simultaneously not only can further improve its fastness and practicality.

The chair has the advantages that the chair back can be stably supported through the support of the chair back frame, meanwhile, the deformation space of the chair back and the waist rest is reserved, and the integral attractiveness of the chair can be improved due to the fact that the radian of the chair back frame is bent.

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

a chair back frame comprises a body, wherein the body is provided with two supporting beams which are vertically arranged and a bearing seat which is integrally connected to the middle parts of the two supporting beams, and the bearing seat is configured to be connected with a chair back; the two supporting beams are connected at the upper ends of the two supporting beams in an intersecting manner and inclined towards the rear side to form handles, the supporting beams are connected at the lower ends of the supporting beams and extend towards the front side to form a seat connecting end, and a closed-loop frame body is enclosed among the handles, the two supporting beams and the seat connecting end.

Compared with the traditional supporting beam, the supporting effect of the two supporting beams can be greatly improved, meanwhile, the upper ends and the lower ends of the two supporting beams are respectively connected in an intersecting manner to form a handle and a chair seat connecting end, the handle can be conveniently pushed and pulled in use, the chair seat connecting end can be conveniently installed and fixed by the two supporting beams, and on the other hand, a closed-loop frame body is formed by the two supporting beams, the handle and the chair seat connecting end, so that the supporting stability is further improved, stress can be effectively transmitted and dispersed when leaning on, and the stress is prevented from being too single and concentrated; meanwhile, the closed frame body enables the integrity of the chair back frame to be better and more attractive. Furthermore, the bearing seat not only bears the chair back, but also divides the whole closed-loop frame body into an upper closed-loop frame body and a lower closed-loop frame body, so that the force arm is shortened in the height direction, the stress of the whole closed-loop frame body is more balanced, and the structure is more stable.

Preferably, the support beam below the load-bearing seat is bent into an arc shape towards the left and right sides, and the width of the support beam below the load-bearing seat is greater than the width of the support beam above the load-bearing seat.

The lower end part of the supporting beam is a stress concentration point, when the supporting beam is leaned, the position is most easy to break, so that the supporting beam is bent towards two sides respectively, and the width of the supporting beam is larger than that of the upper end position, so that the lower end is reinforced, and the structural strength is improved.

Preferably, the distance between the two support beams is 20-30cm, the cross section of the support beam is V-shaped, and the opening of the V-shape faces to the front side.

If the distance between the supporting beams is too large, the appearance is not attractive enough, the supporting effect is poor, the bearing seat connected to the middle of the supporting beams can become a stress concentration point, and the distance between the supporting beams is preferably 25 cm. The terminal surface of a supporting beam is V-arrangement, and the opening of V-arrangement structure is towards the front side, has further improved a supporting beam's structural strength, is difficult more to the fracture to a supporting beam is when receiving backward leaning force, and its support performance is better.

Preferably, the rear side of the bearing seat is retracted inwards to form a rear chamber, the bottom surface of the rear chamber is provided with a connecting hole for connecting the chair back, and a decoration panel for covering the connecting hole is detachably connected in the rear chamber.

Preferably, the detachable connection of the decoration panel used for covering the connection point position in the rear chamber means that: the decoration panel is connected one side with the rearmounted cavity and is equipped with a plurality of elasticity buckles, bear the seat and seted up a plurality of bayonets in rearmounted cavity bottom surface corresponding position department to the decoration panel that has different colours is convenient for change.

Bear the decoration panel of the interior installation of the rearmounted cavity that seat rear side formed and can improve the aesthetic property, also can be used to cover the vestige of some connections simultaneously, when carrying out the ann to the decoration panel, the installation and the dismantlement of decoration panel can be made things convenient for to the elasticity buckle, only need aim at the bayonet socket with the elasticity buckle press down can, also only need pull out the decoration panel hard when dismantling, the elasticity buckle can break away from automatically under the effect of external force with the joint of bayonet socket.

Preferably, the support beam is curved and arched towards the rear side near the lower end to form an installation avoiding area.

The avoidance area is arranged to prevent interference during installation, and the overall aesthetic property can be improved due to the curved radian of the avoidance area.

The chair further comprises the chair back frame and the supporting chassis, wherein the chair seat connecting end is connected to the wane of the supporting chassis; bear the seat front side and contract in and be formed with leading cavity, leading cavity embeds there is the mount pad, the mount pad front side is connected with the back of the chair, still is connected with the waist on the back of the chair and leans on, and the waist leans on the lower extreme can stretch into the installation and dodge in the district.

When installing the seat, the wane that supports the chassis provides the position that the seat support link is connected, and the district can provide the appearance that the waist leaned on warp and let the space in the installation dodges.

Preferably, the width of the seat back is greater than the spacing between the two support beams.

Preferably, the thickness of the mounting seat is greater than the depth of the front chamber so that a space is formed between the seat back and the load-bearing seat.

The installation seat provides the point position that the back of the chair is connected on the one hand, plays the effect of transition between the back of the chair and the bearing seat, simultaneously because the thickness of installation seat is greater than leading cavity, can stretch out partly after the installation, and the part that stretches out makes back of the chair and bearing the formation interval between the seat, and this interval can allow the back of the chair to receive the elastic deformation that takes place when leaning on.

Preferably, a seat is further arranged on the supporting chassis, supporting legs are connected to the bottom surface of the supporting chassis, and universal wheels are further connected to the supporting legs.

Compared with the prior art, the beneficial effects of the utility model are that:

1. compared with a single column, the two support beams can greatly improve the support stability of the chair back frame through the matching connection of the two support beams, and meanwhile, the upper ends and the lower ends of the support beams respectively extend and intersect to form a handle and a chair seat connecting end to form a closed frame body, so that stress can be effectively transferred and dispersed when the chair back frame is leaned; the stress is prevented from being too single and concentrated; the support performance of the chair back frame is better, the structural strength is increased, and the integral durability is improved; and a closed loop is formed, so that the integral structure is more regular and more attractive.

2. The bending of the support beam at the upper end, the lower end and the position close to the lower end plays a role of avoiding on one hand, and on the other hand, the integral attractiveness can be improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the chair of the present invention;

FIG. 2 is a side view of the overall structure of the chair of the present invention;

FIG. 3 is a rear view of the overall structure of the chair of the present invention;

FIG. 4 is a first schematic view of the overall explosion structure of the chair of the present invention;

FIG. 5 is a schematic view of the overall explosion structure of the chair of the present invention;

FIG. 6 is a rear view of the chair back frame body structure of the present invention;

fig. 7 is a sectional view of the structure of the back frame of the chair of the present invention.

Description of the drawings: 1. a body; 2. a support beam; 201. a handle; 202. a chair seat connecting end; 3. a bearing seat; 301. a rear chamber; 302. a bayonet; 303. a pre-chamber; 4. a decorative panel; 401. elastic buckle; 5. installing an avoidance area; 6. a support chassis; 7. a mounting seat; 8. a chair back; 9. a waist support; 10. a chair seat; 11. supporting legs; 12. a universal wheel.

Detailed Description

The following describes the embodiments of the present invention in detail with reference to the attached drawings.

In the embodiment, specifically, a chair back frame and a chair are disclosed, as shown in fig. 1 to 7, the structure of the chair back frame comprises a body 1, the body 1 is provided with two supporting beams 2 which are vertically arranged and a bearing seat 3 which is integrally connected to the middle positions of the two supporting beams 2, and the bearing seat 3 is configured to be connected with a chair back 8; the upper ends of the two supporting beams 2 are connected in an intersecting manner and inclined towards the rear side to form a handle 201, the lower ends of the supporting beams 2 are connected in an intersecting manner and extend towards the front side to form a seat connecting end 202, and a closed-loop frame body is enclosed among the handle 201, the two supporting beams 2 and the seat connecting end 202.

The mechanism of the chair comprises the chair back frame and the supporting chassis 6, and the chair seat connecting end 202 is connected to the rocker of the supporting chassis 6; bear seat 3 front side retraction and be formed with leading cavity 303, leading cavity 303 embeds there is mount pad 7, mount pad 7 front side is connected with back of the chair 8, still is connected with waist on the back of the chair 8 and leans on 9. The width of the chair back 8 is larger than the distance between the two support beams 2.

The thickness of the mounting seat 7 is greater than the depth of the forward chamber 303 so that a space is formed between the seat back 8 and the carrier 3. The supporting chassis 6 is further provided with a chair seat 10, the bottom surface of the supporting chassis 6 is connected with supporting legs 11, and the supporting legs 11 are further connected with universal wheels 12.

The traditional single column type has poor supporting performance, but the supporting mode of two supporting beams 2 is adopted in the embodiment, so that the supporting performance can be greatly improved, and meanwhile, the two supporting beams 2 are respectively connected at the upper ends and the lower ends in an intersecting manner, so that a closed-loop frame body is formed, the supporting performance is further improved, and the stress can be effectively transmitted and dispersed when the supporting frame is leaned; the stress is prevented from being concentrated too singly; meanwhile, the closed frame body is more attractive compared with two abrupt supporting beams 2.

The handle 201 formed by the cross connection of the upper ends of the support beams 2 is also convenient for a user to push and pull, and the handle 201 is arranged in a backward tilting mode, so that when the chair back 8 leans against and tilts backward, the tilted handle 201 can avoid the chair back 8. The support beam 2 is connected at its lower end to form a seat connection end 202, which is convenient to be installed on the support chassis 6 for fixing.

The supporting beam 2 below the bearing seat 3 is bent into an arc shape towards the left side and the right side respectively, and the width of the supporting beam 2 below the bearing seat 3 is larger than that of the supporting beam 2 above the bearing seat 3.

When the supporting beam 2 is leaned, the stress concentration point of the supporting beam is located on the lower half portion of the supporting beam 2, the lower half portion is the position which is most prone to fracture, the lower half portion of the supporting beam 2 is bent towards the left side and the right side respectively, the supporting beam 2 on the lower half portion is thickened, the width of the supporting beam 2 is larger than that of the upper half portion of the supporting beam 2, the supporting beam 2 is reinforced, and the structural strength of the supporting beam 2 is improved.

The distance between the two support beams 2 is 20-30cm, preferably 25cm, the cross section of the support beams 2 is V-shaped, and the opening of the V-shape faces the front side.

If the distance between the supporting beams 2 is too large, not only a good supporting effect cannot be achieved, but also the whole body is not beautiful enough. The cross-section of the support beam 2 is V-shaped, so that the structural strength of the support beam 2 is further enhanced, and the V-shaped opening faces to the front side and is relatively resistant to leaning force generated when a person leans against, so that the support beam 2 cannot be easily broken.

The rear side of the bearing seat 3 is inwards contracted to form a rear chamber 301, the bottom surface of the rear chamber 301 is provided with a connecting hole for connecting the chair back 8, and a decoration panel 4 for covering the connecting hole is detachably connected in the rear chamber 301.

The detachable connection of the decoration panel 4 used for covering the connection point position in the rear chamber 301 means that: the decoration panel 4 is connected with the rear chamber 301 and is provided with a plurality of elastic buckles 401, and the corresponding position of the bottom surface of the rear chamber 301 of the bearing seat 3 is provided with a plurality of bayonets 302, so that the decoration panel 4 with different colors can be replaced.

The bearing seat 3 provides a point position for connecting the mounting seat 7 and a point position for connecting the decoration panel 4, so that the decoration panel 4 further improves the integral aesthetic property, the decoration panel 4 is very convenient to mount and dismount through the clamping connection of the elastic buckle 401 and the bayonet 302, the elastic buckle 401 is aligned to the bayonet 302 and then the clamping connection can be completed through pressing, and when the decoration panel 4 is replaced, the decoration panel 4 can be tilted out of the rear cavity 301 only by applying a certain force; because the rear chamber 301 is also provided with the connecting hole, the decoration panel 4 can also play a role of covering.

The supporting beam 2 is bent and arched towards the rear side near the lower end to form an installation avoiding area 5.

The installation avoidance area 5 formed by the support beam 2 close to the lower end position is used for avoiding interference possibly generated by the seat 10 during connection, and a space for allowing the waist support 9 to deform is provided, so that the waist support 9 can freely deform in the installation avoidance area 5 without being blocked when a user leans against, and the experience of the user is influenced.

The above description in this specification is merely illustrative of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. A chair back frame comprises a body (1), and is characterized in that the body (1) is provided with two supporting beams (2) which are vertically arranged and a bearing seat (3) which is integrally connected to the middle positions of the two supporting beams (2), and the bearing seat (3) is configured to be connected with a chair back (8); two supporting beams (2) are connected in the intersection of the upper ends thereof and inclined towards the rear side to form a handle (201), the supporting beams (2) are connected in the intersection of the lower ends thereof and extend towards the front side to form a seat connecting end (202), and a closed-loop frame body is enclosed by the handle (201), the two supporting beams (2) and the seat connecting end (202).

2. The seat back frame according to claim 1, wherein the portion of the support beam (2) below the carrying seat (3) is curved to the left and right sides, respectively, and the width of the support beam (2) below the carrying seat (3) is greater than the width of the support beam (2) above the carrying seat (3).

3. A seat back frame according to claim 1, wherein the distance between two support beams (2) is 20-30cm, the cross-section of the support beams (2) is V-shaped with the opening of the V-shape facing towards the front side.

4. The chair back frame according to claim 1, wherein a rear chamber (301) is formed in the rear side of the bearing seat (3) in a retracted mode, a connecting hole for connecting the chair back (8) is formed in the bottom surface of the rear chamber (301), and a decorative panel (4) for covering the connecting hole is detachably connected in the rear chamber (301).

5. The back frame according to claim 4, characterized in that the detachable connection of the decorative panel (4) for covering the connection point inside the rear chamber (301) is: one side that decorative panel (4) are connected with rearmounted cavity (301) is equipped with a plurality of elasticity buckles (401), bear seat (3) and seted up a plurality of bayonet sockets (302) in rearmounted cavity (301) bottom surface corresponding position department to change decorative panel (4) that have different colours.

6. The back frame according to claim 1, wherein the support beam (2) is curved and arched to the rear side near the lower end to form a mounting escape area (5).

7. A chair comprising a back frame according to any of claims 1-6 and a support chassis (6), the seat attachment end (202) being connected to a rocker of the support chassis (6); bear seat (3) front side internal contraction and be formed with leading cavity (303), leading cavity (303) embeds there is mount pad (7), mount pad (7) front side is connected with back of the chair (8), still is connected with on back of the chair (8) that the waist leans on (9), and the waist leans on (9) lower extreme protractile installation to dodge in district (5).

8. Seat according to claim 7, characterized in that the width of the back (8) is greater than the spacing between two support beams (2).

9. A seat according to claim 7, characterized in that the thickness of the mounting seat (7) is greater than the depth of the front compartment (303) so that a space is formed between the seat back (8) and the carrier seat (3).

10. The seat according to claim 7, characterized in that a seat (10) is further arranged on the support chassis (6), the bottom surface of the support chassis (6) is connected with support feet (11), and the support feet (11) are further connected with universal wheels (12).