CN220174782U

CN220174782U - Chair frame

Info

Publication number: CN220174782U
Application number: CN202321558589.8U
Authority: CN
Inventors: 马坚辉
Original assignee: Guangdong Jieke Smart Home Co ltd
Current assignee: Guangdong Jieke Smart Home Co ltd
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2023-12-15
Anticipated expiration: 2033-06-16

Abstract

The utility model relates to the technical field of seats, in particular to a chair frame which comprises a fixed seat, an armrest frame rotationally connected with the fixed seat, leg support components rotationally connected with the armrest frame and the fixed seat respectively, a back support component rotationally connected with the armrest frame, a driving device and a mounting seat rotationally connected with the armrest frame respectively, a telescopic rod with one end connected with the mounting seat and a switch component movably arranged on the mounting seat, wherein the telescopic rod is arranged on the mounting seat; the output end of the driving device is rotationally connected with the fixed seat; the other end of the telescopic rod is rotationally connected with the back support component. The telescopic rod, the mounting seat and the back support assembly are connected in a simple structure, the telescopic rod is locked or unlocked through the switch assembly, the length of the telescopic rod is convenient to adjust, and the inclination angle of the back support assembly is convenient to adjust. And the installation seat is additionally arranged, so that the switch assembly and the telescopic rod are convenient to install. The production and installation cost of the telescopic rod is low, and the production cost of the chair frame is reduced.

Description

Chair frame

Technical Field

The utility model relates to the technical field of seats, in particular to a seat frame.

Background

With the rapid development of the age, the requirements of people on the seats are higher and higher, and various seats are produced and living in the people. In patent application number CN201820668776.4, a sofa frame with a double drive is disclosed, comprising a base frame assembly, a sofa mounting frame, leg assemblies, a back assembly, a linkage mechanism, leg drive and back drive; the linkage mechanism comprises a transmission rod, a linkage plate, a baffle plate and a leg linkage assembly; one end of the leg driving device is in driving connection with the transmission rod, and the other end of the leg driving device is connected with the underframe assembly; the linkage plate is connected to one end of the transmission rod, and the baffle plate is connected to the transmission rod; one end of the leg linkage assembly is hinged with the linkage plate, and the other end of the leg linkage assembly is hinged with the leg assembly; the sofa mounting frame is hinged to the linkage plate; the middle part of the sofa mounting frame is connected with a sofa supporting rod, one end of the back driving device is connected with the back assembly in a driving way, and the other end of the back driving device is connected with the sofa supporting rod; the chassis assembly is provided with a first stopper. The two driving devices are arranged in the patent application, so that the production cost of the sofa frame is increased, and the market competitiveness of the sofa frame is reduced. And the sofa frame has complex structure and is inconvenient to produce and install. Thus, the drawbacks are quite apparent and there is a need to provide a solution.

Disclosure of Invention

In order to solve the above technical problems, an object of the present utility model is to provide a chair frame.

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

the chair frame comprises a fixed seat, an armrest frame rotationally connected with the fixed seat, leg support components rotationally connected with the armrest frame and the fixed seat respectively, a back support component rotationally connected with the armrest frame, a driving device and a mounting seat rotationally connected with the armrest frame respectively, a telescopic rod with one end connected with the mounting seat and a switch component movably arranged on the mounting seat; the output end of the driving device is rotationally connected with the fixed seat; the other end of the telescopic rod is rotationally connected with the back support component; the switch assembly is used for locking or unlocking the telescopic rod.

Further, the telescopic rod adopts a gas spring, a needle valve switch is arranged on the gas spring, and the switch assembly locks or unlocks the telescopic length of the gas spring through the needle valve switch.

Further, the chair frame comprises a rotating space arranged in the middle of the mounting seat and two rotating grooves arranged on two sides of the mounting seat, and the two rotating grooves are respectively communicated with the rotating space; the switch assembly comprises a pull rope and a contact plate, wherein one end of the pull rope is sequentially inserted into one rotating groove, the rotating space and the other rotating groove, and the contact plate is positioned in the rotating space and connected with the pull rope; the interference plate can be in interference with the needle valve switch.

Further, both ends of the abutting plate are respectively connected with the inner side of the rotating space in a sliding mode.

Further, the handrail frame comprises a frame body and a supporting rod arranged on the frame body, and the middle part of the supporting rod is bent towards the direction close to the fixed seat; the mounting seat and the driving device are respectively connected with the supporting rod in a rotating way.

Further, the back support assembly comprises a back connecting rod with one end hinged with the armrest frame and a back rest connected with the other end of the back connecting rod, and the telescopic rod is rotatably connected with the back rest.

Further, the backrest is rectangular and is of unitary construction.

Further, the back support assembly also includes a head support rotatably disposed on the backrest.

Further, the chair frame also comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged with one end of the armrest frame, and the other end of the first connecting rod is hinged with one end of the fixing seat; one end of the second connecting rod is hinged with the middle part of the armrest frame, the middle part of the second connecting rod is hinged with the other end of the fixing seat, and the other end of the second connecting rod is hinged with the other end of the armrest frame and the leg support assembly respectively.

The utility model has the beneficial effects that: according to the utility model, the telescopic rod is respectively connected with the back support assembly and the mounting seat in a rotating way, the telescopic rod is connected with the mounting seat and the back support assembly in a simple structure, the telescopic rod is locked or unlocked through the switch assembly, the length of the telescopic rod is convenient to adjust, and the inclination angle of the back support assembly is convenient to adjust. And the installation seat is additionally arranged, so that the switch assembly and the telescopic rod are convenient to install. The production and installation cost of the telescopic rod is low, and the production cost of the chair frame is reduced.

Drawings

Fig. 1 is a schematic perspective view of the present utility model in a lying state.

Fig. 2 is a schematic view of a partial perspective structure of the present utility model.

Fig. 3 is a schematic perspective view of the present utility model in a semi-lying state.

FIG. 4 is a schematic perspective view of a sitting posture according to the present utility model

Reference numerals illustrate:

1. a fixing seat; 2. a handrail frame; 3. a leg support assembly; 4. a back support assembly; 5. a driving device; 6. a mounting base; 7. a telescopic rod; 8. a switch assembly; 9. a needle valve switch; 10. a rotation space; 11. a rotary groove; 12. a pull rope; 13. a contact plate; 14. a frame body; 15. a support rod; 16. a back connecting rod; 17. a backrest member; 18. a head support; 19. a first connecting rod; 20. and a second connecting rod.

Detailed Description

The utility model will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the utility model.

As shown in fig. 1 to 4, the chair frame provided by the utility model comprises a fixed seat 1, an armrest frame 2 rotatably connected with the fixed seat 1, a leg support assembly 3 rotatably connected with the armrest frame 2 and the fixed seat 1 respectively, a back support assembly 4 rotatably connected with the armrest frame 2, a driving device 5 and a mounting seat 6 rotatably connected with the armrest frame 2 respectively, a telescopic rod 7 with one end connected with the mounting seat 6 and a switch assembly 8 movably arranged on the mounting seat 6; the output end of the driving device 5 is rotationally connected with the fixed seat 1; the other end of the telescopic rod 7 is rotatably connected with the back support component 4; the switch assembly 8 is used for locking or unlocking the telescopic rod 7.

In actual use, when the chair frame is in a sitting posture, the leg support assembly 3 is in a contracted state, the back support assembly 4 is in an upright state, the telescopic rod 7 is in an extended state (the telescopic rod 7 is extended to the longest), the driving device 5 is in an extended state (the output end of the driving device 5 extends out of the body of the driving device 5 to the longest), the driving device 5 is started, the length of the output end of the driving device 5 extending out of the body of the driving device 5 is gradually reduced so as to drive the armrest frame 2 to rotate relative to the fixed seat 1 towards the direction approaching to the back support assembly 4, the armrest frame 2 can tilt relative to the fixed seat 1, the armrest frame 2 is matched with the fixed seat 1 to expand the leg support assembly 3 in the tilting and rotating process, and meanwhile, the back support assembly 4 is also tilted slightly synchronously with the armrest frame 2 until the driving device 5 is in a contracted state (the output end of the driving device 5 is basically contracted into the body of the driving device 5), and the chair frame is adjusted to a semi-lying state. When the chair frame needs to be continuously adjusted to a lying state, the locking of the telescopic rod 7 is released through the switch assembly 8, the back support assembly 4 is driven to rotate relative to the armrest frame 2 in a direction away from the driving device 5 through external force, the telescopic rod 7 is passively stretched until the telescopic rod 7 is stretched to a proper length and then is stopped, the length of the telescopic rod 7 is locked through the switch assembly 8, and further tilting of the back support assembly 4 is achieved, so that the chair frame is adjusted to a lying state from a semi-lying state. Similarly, when the chair frame needs to be adjusted from the reclining state to the sitting state, the operation flow is opposite to that of the present embodiment. According to the utility model, the telescopic rod 7 is respectively connected with the back support assembly 4 and the mounting seat 6 in a rotating way, the telescopic rod 7 is connected with the mounting seat 6 and the back support assembly 4 in a simple structure, the telescopic rod 7 is locked or unlocked through the switch assembly 8, the length of the telescopic rod 7 is convenient to adjust, and the inclination angle of the back support assembly 4 is convenient to adjust. The mounting seat 6 is additionally arranged, so that the switch assembly 8 and the telescopic rod 7 are conveniently mounted. The production and installation cost of the telescopic rod 7 is low, and the production cost of the chair frame is reduced.

Specifically, the driving device 5 may employ an existing linear motor or push rod, and its structure and function are the same as or similar to those of the existing linear motor or push rod, which will not be described herein.

Further, the telescopic rod 7 adopts a gas spring, a needle valve switch 9 is arranged on the gas spring, and the switch assembly 8 locks or unlocks the telescopic length of the gas spring through the needle valve switch 9.

Specifically, the chair frame comprises a rotation space 10 arranged in the middle of the mounting seat 6 and two rotation grooves 11 arranged on two sides of the mounting seat 6, wherein the two rotation grooves 11 are respectively communicated with the rotation space 10; the switch assembly 8 comprises a pull rope 12 and a contact plate 13, wherein one end of the pull rope 12 is sequentially inserted into one rotary groove 11, the rotary space 10 and the other rotary groove 11, the contact plate 13 is positioned in the rotary space 10 and connected with the pull rope 12, and the pull rope 12 can rotate relative to the inner walls of the two rotary grooves 11 and the rotary space 10; the interference plate 13 can interfere with the needle valve switch 9. The pull cord 12 may be a steel cord. In the in-service use, the other end of stay cord 12 is provided with the twist grip, drive stay cord 12 and conflict board 13 through the twist grip and rotate in rotatory space 10, conflict board 13 rotates to contradict and open or release the locking through needle valve switch 9 control gas spring with needle valve switch 9, the user is through the application of force on back support assembly 4, rotate for handrail frame 2 through driving back support assembly 4, thereby drive gas spring extension or shorten, thereby adjust back support assembly 4's inclination, after back support assembly 4's slope reaches suitable angle, drive stay cord 12 and conflict board 13 through the twist grip and reset, control gas spring locking through needle valve switch 9, and then accomplish back support assembly 4's inclination's locking. According to the utility model, the back support assembly 4 is driven to incline by the gas spring, so that the inclination angle of the back support assembly 4 can be adjusted steplessly, the comfort level of the chair frame in the use process is improved, and the switch assembly 8 has a simple structure and is convenient to match with the mounting seat 6 and the needle valve switch 9.

Further, both ends of the abutting plate 13 are slidably connected to the inner side of the rotation space 10, respectively. The rotation stroke of the interference plate 13 in the rotation process is limited by the rotation space 10, so that the stability of the interference plate 13 in the rotation of the rotation space 10 is improved.

Further, the armrest frame 2 comprises a frame body 14 and a support rod 15 arranged on the frame body 14, wherein the middle part of the support rod 15 is bent towards the direction close to the fixed seat 1; the mounting seat 6 and the driving device 5 are respectively connected with the supporting rod 15 in a rotating way.

In the in-service use, bracing piece 15 is located the below of user's buttock for support user's buttock, bend bracing piece 15 downwards, make the middle part of bracing piece 15 be less than frame body 14, when the user sits on bracing piece 15, the both sides of user's buttock are surrounded by frame body 14, make the cladding sense of chair frame stronger, improve user's use experience. The support rod 15 is conveniently connected with the mounting seat 6 and the driving device 5.

Further, the back support assembly 4 comprises a back connecting rod 16 with one end hinged with the armrest frame 2 and a backrest 17 connected with the other end of the back connecting rod 16, and the telescopic rod 7 is rotatably connected with the backrest 17.

In the actual use process, after the switch component 8 releases the locking of the gas spring through the needle valve switch 9, the backrest 17 and the back connecting rod 16 are driven to rotate relative to the armrest frame 2 in a direction away from or close to the driving device 5, so that the angle of the backrest 17 is adjusted. The back support assembly 4 is simple in structure and the angle of the backrest 17 is convenient to adjust.

Further, the backrest 17 is rectangular, and the backrest 17 is of integral construction.

In the actual use process, the production and the processing of the integrally constructed backrest 17 are convenient, the backrest 17 is arranged into a rectangle shape, the backrest 17 is convenient to be connected with the telescopic rod 7, the backrest 17 is convenient to support the back of a user, and the practicability is high.

Further, the back support assembly 4 further comprises a head support 18 arranged rotatably on the backrest 17.

In the actual use process, the head support 18 is convenient for supporting the heads of different users by adjusting the rotation angle of the head support 18 relative to the backrest 17, so that the practicability of the utility model is further improved.

Further, the chair frame further comprises a first connecting rod 19 and a second connecting rod 20, one end of the first connecting rod 19 is hinged with one end of the armrest frame 2, and the other end of the first connecting rod 19 is hinged with one end of the fixed seat 1; one end of the second connecting rod 20 is hinged with the middle part of the armrest frame 2, the middle part of the second connecting rod 20 is hinged with the other end of the fixed seat 1, and the other end of the second connecting rod 20 is hinged with the other end of the armrest frame 2 and the leg support assembly 3 respectively.

Specifically, the second connecting rod 20 is L-shaped. In the actual use process, when the driving device 5 drives the armrest frame 2 to rotate relative to the fixed seat 1 in a direction approaching to the back support assembly 4, the armrest frame 2 can respectively drive the first connecting rod 19 and the second connecting rod 20 to rotate relative to the fixed seat 1, so that the armrest frame 2 rotates relative to the fixed seat 1. Simultaneously, the leg support assembly 3 is driven to be unfolded through the cooperation rotation of the armrest frame 2 and the second connecting rod 20, so that the chair frame is adjusted from a sitting posture state to a half lying state. The connecting structure of the fixed seat 1 and the armrest frame 2 is simple, the armrest frame 2 is convenient to rotate relative to the fixed seat 1, and the unfolding action of the leg supporting component 3 is simple. The leg support assembly 3 may be a conventional leg support structure, and the structure and function thereof are the same as or similar to those of the conventional leg support structure, and will not be described herein.

All technical features in the embodiment can be freely combined according to actual needs.

The foregoing embodiments are preferred embodiments of the present utility model, and in addition, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.

Claims

1. A chair frame, characterized in that: the device comprises a fixed seat (1), a handrail frame (2) rotationally connected with the fixed seat (1), leg support components (3) rotationally connected with the handrail frame (2) and the fixed seat (1) respectively, a back support component (4) rotationally connected with the handrail frame (2), a driving device (5) and an installation seat (6) rotationally connected with the handrail frame (2) respectively, a telescopic rod (7) with one end connected with the installation seat (6) and a switch component (8) movably arranged on the installation seat (6); the output end of the driving device (5) is rotationally connected with the fixed seat (1); the other end of the telescopic rod (7) is rotationally connected with the back support component (4); the switch assembly (8) is used for locking or unlocking the telescopic rod (7).

2. A chair frame as claimed in claim 1, wherein: the telescopic rod (7) adopts a gas spring, a needle valve switch (9) is arranged on the gas spring, and the switch assembly (8) locks or unlocks the telescopic length of the gas spring through the needle valve switch (9).

3. A chair frame as claimed in claim 1, wherein: the chair frame comprises a rotating space (10) arranged in the middle of the mounting seat (6) and two rotating grooves (11) arranged on two sides of the mounting seat (6), wherein the two rotating grooves (11) are respectively communicated with the rotating space (10); the switch assembly (8) comprises a pull rope (12) and a contact plate (13), wherein one end of the pull rope (13) is sequentially inserted into one rotary groove (11), the rotary space (10) and the other rotary groove (11), the contact plate is positioned in the rotary space (10) and connected with the pull rope (12), and the pull rope (12) can rotate relative to the inner walls of the two rotary grooves (11) and the rotary space (10); the interference plate (13) can be in interference with the needle valve switch (9).

4. A chair rack according to claim 3, wherein: both ends of the abutting plate (13) are respectively connected with the inner side of the rotating space (10) in a sliding way.

5. A chair frame as claimed in claim 1, wherein: the handrail frame (2) comprises a frame body (14) and a supporting rod (15) arranged on the frame body (14), and the middle part of the supporting rod (15) is bent towards the direction close to the fixed seat (1); the mounting seat (6) and the driving device (5) are respectively connected with the supporting rod (15) in a rotating way.

6. A chair frame as claimed in claim 1, wherein: the back support assembly (4) comprises a back connecting rod (16) with one end hinged with the armrest frame (2) and a backrest (17) connected with the other end of the back connecting rod (16), and the telescopic rod (7) is rotatably connected with the backrest (17).

7. A chair frame as claimed in claim 6, wherein: the backrest (17) is rectangular, and the backrest (17) is of an integral structure.

8. A chair frame as claimed in claim 6, wherein: the back support assembly (4) further comprises a head support (18) arranged rotatably on the backrest (17).

9. A chair frame as claimed in any one of claims 1 to 8, wherein: the chair frame also comprises a first connecting rod (19) and a second connecting rod (20), one end of the first connecting rod (19) is hinged with one end of the armrest frame (2), and the other end of the first connecting rod (19) is hinged with one end of the fixed seat (1); one end of the second connecting rod (20) is hinged with the middle part of the armrest frame (2), the middle part of the second connecting rod (20) is hinged with the other end of the fixed seat (1), and the other end of the second connecting rod (20) is hinged with the other end of the armrest frame (2) and the leg supporting assembly (3) respectively.