Dual-purpose chair

Abstract

The utility model discloses a dual-purpose functional chair which comprises a chair seat, a chair back and armrests, the chair seat is rotatably connected with the chair back, two ends of each armrest are rotatably arranged with the chair seat and the chair back respectively, and a waist supporting mechanism used for supporting the waist of a user is further arranged on the side wall, facing the chair seat, of the chair back. The waist supporting mechanism comprises a waist rest and a movable plate, the waist rest is arranged on the side wall of the movable plate through a spring, a protruding block arranged on the other side of the movable plate is connected to the outer arc face of a threaded rod in a threaded and sleeving mode, and the bottom end of the threaded rod and a transmission module are fixedly installed, so that a user can rotate a rotating handle manually, and the waist supporting mechanism can be used for supporting the waist. And the height position of the waist and back rest is adjusted, so that the applicability of the user is improved, the user feels more comfortable in the lying state, extrusion to the waist and the back of the user is reduced, and the problem that the waist and the back of the user are uncomfortable when an existing deck chair is in the lying state is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chair, concretely is a chair with dual functions. BACKGROUND

[0002] Chair is a kind of daily life furniture, a kind of backrest, also has armrest seat. Modern chair pursues beautiful and fashionable, some chairs are no longer single seat and are endowed with more technology, so that human beings are more convenient.

[0003] Through search, prior art, the publication number is: CN217137276U, a kind of leisure chair with one chair two functions is disclosed, including support leg, the top of support leg is installed with seat plate, the both sides of seat plate are all installed with rotating shaft, the both sides of seat plate are all installed with backrest and pad leg plate respectively through rotating shaft, the bottom of the side, away from pad leg plate of backrest, is installed with arc movable plate, the bottom of arc movable plate is rotatably installed with push plate, the bottom of seat plate is installed with fixed limiting block.The utility model, rotating table plate is arranged on armrest, user does not need to place the table such bulky object on balcony, save the limited area on balcony, avoid the crowded balcony because of placing too many objects, so as to cause user accident, and through the cooperation between arc movable plate, push plate and movable plate, user is moved by being supported on backrest, pad leg plate is moved, leisure seat changes into leisure deck chair, reaches the effect of one chair two functions, can improve the experience of user.

[0004] However, the utility model does not have adjustable waist support, for the existing dual-purpose chair with waist support, only the depth of waist support can be adjusted, the height of waist support cannot be adjusted, the height of waist support cannot be adjusted according to the different positions of user's waist, so that the applicability of seat and the comfort of user are low, therefore a chair with dual functions is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a chair with dual functions, by setting up a waist support, so that the user can manually rotate the rotating handle to further drive the tooth bar to rotate and adjust the height position of the waist support, to solve the problems in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A chair with dual functions includes a seat, a backrest and an armrest, the seat and the backrest are rotatably connected, and the two ends of the armrest are rotatably arranged with the seat and the backrest, respectively, and the side wall of the backrest facing the seat is further provided with a waist supporting mechanism for supporting the waist of the user.

[0008] The supporting mechanism comprises a waist rest and a movable plate, spring is arranged on the side wall above the seat, the waist rest is provided with a first recess on the side wall of the movable plate, the spring is arranged in the first recess, the other side wall of the movable plate is provided with a protrusion, a through slot is arranged on the lower side wall of the backrest, and a lifting assembly for driving the protrusion to drive the movable plate to lift is arranged in the through slot.

[0009] The bottom of the seat is further provided with a supporting leg mechanism.

[0010] Preferably, the two side walls of the through slot are provided with limiting grooves, and the two side walls of the protrusion are provided with limiting blocks, which are in sliding connection with the inner walls of the limiting grooves under the driving of the lifting assembly.

[0011] Preferably, the lifting assembly comprises a toothed bar, the top end of the toothed bar is rotatably arranged on the inner top surface of the through slot, the bottom end of the toothed bar is fixedly installed with a transmission module, the protrusion is threadedly connected to the outer arc surface of the toothed bar, and the two side walls of the protrusion are in sliding connection with the inner walls of the through slot.

[0012] Preferably, the transmission module comprises a rotating rod, a special-shaped gear and a special-shaped gear disc, the bottom end of the through slot is provided with an inner cavity in the inside of the backrest below the side arm, the special-shaped gear is arranged on the end of the rotating rod below the through slot, the special-shaped gear is in meshing connection with the special-shaped gear disc, and the bottom end of the toothed bar penetrates through the partition plate between the through slot and the inner cavity and is fixedly installed with the special-shaped gear disc.

[0013] Preferably, the other end of the rotating rod is provided with a rotating handle penetrating through the side wall of the backrest, and the end of the rotating rod in contact with the special-shaped gear is rotatably connected with the inner wall end of the inner cavity penetrating through the special-shaped gear.

[0014] Preferably, the bottom surface of the seat is fixedly provided with a moving lifting assembly, the bottom surface of the end of the seat away from the backrest is fixedly provided with a hanging plate, and the supporting leg mechanism is rotatably arranged with the hanging plate.

[0015] Preferably, the supporting leg mechanism comprises a leg-climbing plate, the bottom surface of the leg-climbing plate is rotatably arranged with the working end of an electric telescopic rod, the bottom end of the electric telescopic rod is rotatably arranged on the bottom end of the hanging plate, and the two side walls of the leg-climbing plate and the hanging plate are further provided with a connecting assembly.

[0016] Preferably, the two side walls of the leg-climbing plate and the hanging plate are provided with a second recess and a notch, respectively, the connecting assembly is rotatably arranged in the second recess and the notch, respectively, and one end of the two groups of connecting assemblies is rotatably arranged.

[0017] Preferably, the connecting assembly comprises a first connecting strip, a second connecting strip and a third connecting strip, the first connecting strip and the second connecting strip are rotatably arranged in the interiors of the second groove and the notch respectively, the other ends of the first connecting strip and the second connecting strip are rotatably connected with the two ends of the third connecting strip respectively, and the ends of the first connecting strip and the third connecting strip rotatably connected with each other are rotatably connected through a rotating pin.

[0018] Preferably, the bottom surface of the seat is arranged below the backrest and is further provided with a battery pack, and the top surface of one side of the armrest is further provided with a controller.

[0019] Compared with the prior art, the utility model has the beneficial effects that:

[0020] The utility model discloses a backrest is set up, and the backrest is set up on the side wall of movable plate through spring, and the convex block set up on the other side of movable plate is screwed on the outer arc surface of tooth strip, and the bottom end of tooth strip is fixedly installed with transmission module, so that the user drives tooth strip to rotate through the manual rotation of rotating handle, and the height position of backrest is adjusted, and the applicability of user is increased, and the rotatable support leg mechanism is also set up, and the leg of user in lying mode is supported, and the use comfort of user is further guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is whole structure schematic diagram of the utility model;

[0022] Figure 2 It is whole back structure schematic diagram of the utility model;

[0023] Figure 3 It is whole lying state structure schematic diagram of the utility model;

[0024] Figure 4 It is the structure schematic diagram of the utility model's supporting waist mechanism;

[0025] Figure 5 It is the structure schematic diagram of the utility model's transmission module;

[0026] Figure 6 It is the structure schematic diagram of the utility model's support leg mechanism.

[0027] In the figure: 1, seat; 2, backrest; 3, armrest; 4, leg mechanism; 5, moving lifting assembly; 6, waist support mechanism; 7, controller; 8, waist support; 9, first groove; 10, movable plate; 11, protruding block; 12, limiting block; 13, through groove; 14, limiting groove; 15, inner cavity; 16, rotating handle; 17, rotating rod; 18, special-shaped gear; 19, special-shaped gear disc; 20, toothed strip; 21, leg-attaching plate; 22, second groove; 23, lower hanging plate; 24, notch; 25, first connecting strip; 26, second connecting strip; 27, third connecting strip; 28, spring; 29, battery pack; 30, electric telescopic rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] Please refer to Figures 1-6 The utility model provides a kind of chair of dual function, including seat 1, backrest 2, armrest 3, seat 1 and backrest 2 rotationally connect, and the both ends of armrest 3 are rotationally arranged with seat 1 and backrest 2 respectively, the side wall of backrest 2 towards seat 1 is also provided with the waist support mechanism 6 for supporting the waist of user;

[0030] Waist support mechanism 6 includes waist support 8 and movable plate 10, spring 28 is arranged on the side wall above seat 1 of movable plate 10, first groove 9 is respectively opened in the side wall of waist support 8 towards movable plate 10, spring 28 is arranged in the inside of first groove 9, protruding block 11 is arranged on the other side wall of movable plate 10, through groove 13 is opened below the side wall of backrest 2, and lifting assembly for driving protruding block 11 to drive movable plate 10 to lift is further arranged in the inside of through groove 13;

[0031] The bottom of seat 1 is also provided with leg mechanism 4.

[0032] Lifting adjustment position is driven by setting lifting assembly to waist support 8, and first groove 9 opened in the side wall of waist support 8 and spring 28 arranged in the side wall of movable plate 10 are fixedly installed, so as to facilitate user to recline waist support 8, and extrude spring 28, so as to facilitate waist support 8 to better adjust angle according to the waist of different users.

[0033] In the embodiment, as Figure 4As shown, the inner walls of both sides of the through slot 13 are provided with limiting grooves 14, and the side walls of both sides of the protruding block 11 are provided with limiting blocks 12, which are in sliding connection with the inner walls of the limiting grooves 14 under the driving of the lifting assembly. By slidingly arranging the limiting blocks 12 provided on both sides of the protruding block 11 in the limiting grooves 14 provided on the inner walls of the through slot 13, the direction of the protruding block 11 during lifting can be determined when the lifting assembly drives the protruding block 11 to lift the lumbar support 8.

[0034] Further, as shown in the drawings, Figure 4 The lifting assembly comprises a tooth bar 20, the top end of the tooth bar 20 is rotationally arranged on the inner top surface of the through slot 13, the bottom end of the tooth bar 20 is fixedly installed with the transmission module, and the protruding block 11 is threadedly sleeved on the outer arc surface of the tooth bar 20, and the side walls of both sides of the protruding block 11 are in sliding connection with the inner walls of the through slot 13.

[0035] By rotationally arranging the tooth bar 20 on the inner top surface of the through slot 13, and fixedly installing the bottom end of the tooth bar 20 with the transmission module, and threadedly sleeving the protruding block 11 on the outer arc surface of the tooth bar 20, the tooth bar 20 can be driven to rotate by the transmission module, and the protruding block 11 can be driven to move up and down on the outer arc surface of the tooth bar 20, so as to further adjust the position of the special-shaped gear 18.

[0036] Further, as shown in the drawings, Figure 5 The transmission module comprises a rotating rod 17, a special-shaped gear 18 and a special-shaped gear disc 19, the bottom end of the through slot 13 is provided with an inner cavity 15 inside the chair back 2 below the side armrest 3, the special-shaped gear 18 is arranged at the end of the rotating rod 17 below the through slot 13, the special-shaped gear 18 is in meshing connection with the special-shaped gear disc 19, and the bottom end of the tooth bar 20 penetrates the partition plate between the through slot 13 and the inner cavity 15 and is fixedly installed with the special-shaped gear disc 19.

[0037] By rotationally arranging the rotating rod 17 at one end to penetrate the inner wall of the special-shaped gear 18 and the inner cavity 15, and rotationally arranging the rotating handle 16 at the other end of the rotating rod 17 to penetrate the side wall of the chair back 2, the end of the rotating rod 17 in contact with the special-shaped gear 18 is rotationally connected with the end of the special-shaped gear 18 penetrating the inner wall of the inner cavity 15, so that the user can manually rotate the rotating handle 16 to drive the rotating rod 17 to rotate, and then make the special-shaped gear 18 in meshing connection with the special-shaped gear disc 19, and then drive the tooth bar 20 to rotate inside the through slot 13, so as to adjust the position of the protruding block 11 on the outer arc surface of the tooth bar 20, and realize the adjustment of the lumbar support 8.

[0038] Preferably, as shown in the drawings, Figure 3 The bottom surface of the chair seat 1 is fixedly provided with a moving lifting assembly 5, the bottom surface of the end of the chair seat 1 away from the chair back 2 is fixedly provided with a lower hanging plate 23, and the supporting leg mechanism 4 is rotationally arranged with the lower hanging plate 23.

[0039] Meanwhile, the bottom of the seat 1 is provided with a moving lifting assembly 5, and the bottom surface of the end of the seat 1 away from the back 2 is fixedly provided with a lower hanging plate 23, and the leg supporting mechanism 4 is rotatably arranged with the lower hanging plate 23, so as to support the legs of the user lying down through the leg supporting mechanism 4, thereby increasing the use experience of the user.

[0040] More preferably, as shown in the drawings, the leg supporting mechanism 4 comprises a leg clamping plate 21, the bottom surface of the leg clamping plate 21 is rotatably arranged with the working end of the electric telescopic rod 30, the bottom end of the electric telescopic rod 30 is rotatably arranged at the bottom end of the lower hanging plate 23, and the two side walls of the leg clamping plate 21 and the lower hanging plate 23 are further provided with a connecting assembly. Figure 6

[0041] By arranging the bottom surface of the leg clamping plate 21 rotatably with the working end of the electric telescopic rod 30, the bottom end of the electric telescopic rod 30 is rotatably arranged at the bottom end of the lower hanging plate 23, and the two side walls of the leg clamping plate 21 and the lower hanging plate 23 are provided with a connecting assembly, so as to drive the leg clamping plate 21 to rotate from the vertical direction to the horizontal direction through the electric telescopic rod 30 to support the legs of the user.

[0042] In addition, as shown in the drawings, the two side walls of the leg clamping plate 21 and the lower hanging plate 23 are respectively provided with a second groove 22 and a notch 24, and the connecting assembly is rotatably arranged in the second groove 22 and the notch 24. Figure 6

[0043] The two side walls of the leg clamping plate 21 and the lower hanging plate 23 are respectively provided with a second groove 22 and a notch 24, and the connecting assembly is rotatably arranged in the second groove 22 and the notch 24, and the connecting assembly comprises a first connecting strip 25, a second connecting strip 26 and a third connecting strip 27, the first connecting strip 25 and the second connecting strip 26 are rotatably arranged in the second groove 22 and the notch 24, respectively, the other end of the first connecting strip 25 and the second connecting strip 26 is rotatably connected with the two ends of the third connecting strip 27, respectively, and the end of the two groups of first connecting strips 25 and third connecting strips 27 rotatably connected is rotatably connected through a rotating pin, so as to make the first connecting strip 25 and the second connecting strip 26 rotatably connected with the lower hanging plate 23 and the leg clamping plate 21, respectively, by arranging the working end of the electric telescopic rod 30 to extend, the end of the two groups of first connecting strips 25 and third connecting strips 27 rotatably connected is rotatably arranged through a rotating pin, so as to limit the rotating direction of the leg clamping plate 21, and further increase the stability of the leg clamping plate 21 when rotating.

[0044] The bottom surface of the seat 1 below the back 2 is further provided with a battery pack 29, and one side of the top surface of the armrest 3 is further provided with a controller 7, and the battery pack 29 is arranged to supply power to the controller 7 and the electric telescopic rod 30, so that the user can control the extension of the working end of the electric telescopic rod 30 through the controller 7 to rotate the leg clamping plate 21 to support the legs of the user.​​

[0045] Although the embodiments of the present application have been shown and described above, it should be understood by those skilled in the art that the above embodiments are exemplary and cannot be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A dual-purpose chair comprising a seat (1), a backrest (2), and armrests (3), characterized in that: The seat (1) and the backrest (2) are rotatably connected, and the two ends of the armrest (3) are rotatably arranged with the seat (1) and the backrest (2), respectively. The side wall of the backrest (2) facing the seat (1) is also provided with a waist support mechanism (6) for supporting the waist of the user; The lumbar support mechanism (6) includes a lumbar support (8) and a movable plate (10), the side wall of the movable plate (10) located above the seat (1) is provided with a spring (28), the side wall of the lumbar support (8) facing the movable plate (10) is respectively provided with a first groove (9), the spring (28) is arranged inside the first groove (9), the other side wall of the movable plate (10) is provided with a protrusion (11), the side wall of the chair back (2) is provided with a through groove (13) below, and the through groove (13) is also provided with a lifting component for driving the protrusion (11) to drive the movable plate (10) to move up and down; A leg support mechanism (4) is also provided at the bottom of the seat (1).

2. The dual-purpose chair according to claim 1, characterized in that: Limiting grooves (14) are respectively provided on the inner walls on both sides of the through groove (13), and limiting blocks (12) are respectively provided on the side walls on both sides of the protrusion (11). The limiting blocks (12) are slidably connected to the inner walls of the limiting grooves (14) when driven by the lifting assembly.

3. The dual-purpose chair according to claim 2, characterized in that: The lifting assembly includes a tooth bar (20), the top end of the tooth bar (20) is rotatably arranged on the inner top surface of the through groove (13), the bottom end of the tooth bar (20) is fixedly installed with the transmission module, the protrusion (11) is threadedly sleeved on the outer arc surface of the tooth bar (20), and the side walls of the protrusion (11) are respectively slidably connected to the inner wall of the through groove (13).

4. The dual-purpose chair according to claim 3, characterized in that: The transmission module comprises a rotating rod (17), a special-shaped gear (18) and a special-shaped toothed disc (19); the bottom end of the through slot (13) is located below one side armrest (3) and is provided with an inner cavity (15) inside the chair back (2); the special-shaped gear (18) is arranged at the end of the rotating rod (17) below the through slot (13); the special-shaped gear (18) is meshed and connected with the special-shaped toothed disc (19); the bottom end of the tooth bar (20) passes through the partition between the through slot (13) and the inner cavity (15) and is fixedly installed with the special-shaped toothed disc (19).

5. The dual-purpose chair according to claim 4, characterized in that: The other end of the rotating rod (17) passes through the side wall of the chair back (2) and is provided with a rotating handle (16). The end of the rotating rod (17) in contact with the special-shaped gear (18) passes through the special-shaped gear (18) and is rotatably connected to the inner wall end of the inner cavity (15).

6. The dual-purpose chair according to claim 1, characterized in that: A movable lifting assembly (5) is fixedly provided on the bottom surface of the seat (1), a lower hanging plate (23) is fixedly provided on the bottom surface of one end of the seat (1) away from the backrest (2), and the leg support mechanism (4) and the lower hanging plate (23) are rotatably provided.

7. The dual-purpose chair according to claim 6, characterized in that: The leg support mechanism (4) includes a leg support plate (21), the bottom surface of the leg support plate (21) is rotatably arranged with the working end of the electric telescopic rod (30), the bottom end of the electric telescopic rod (30) is rotatably arranged with the bottom end of the lower hanging plate (23), and the side walls of the leg support plate (21) and the lower hanging plate (23) are also provided with connecting components.

8. The dual-purpose chair according to claim 7, characterized in that: The side walls of the leg support plate (21) and the lower hanging plate (23) are respectively provided with a second groove (22) and a notch (24); the connecting components are respectively rotatably arranged inside the second groove (22) and the notch (24), and one end of the two groups of connecting components are rotatably arranged.

9. The dual-purpose chair according to claim 8, characterized in that: The connecting assembly comprises a first connecting bar (25), a second connecting bar (26) and a third connecting bar (27), wherein the first connecting bar (25) and the second connecting bar (26) are rotatably arranged inside the second groove (22) and the notch (24), respectively, and the other ends of the first connecting bar (25) and the second connecting bar (26) are rotatably connected to the two ends of the third connecting bar (27), respectively, and the ends of the two groups of the first connecting bar (25) and the third connecting bar (27) that are rotatably connected are both rotatably connected through a rotating pin.

10. The dual-purpose chair according to claim 1, characterized in that: A battery pack (29) is also provided on the bottom surface of the seat (1) below the backrest (2), and a controller (7) is also provided on the top surface of one side of the armrest (3).

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