Reclining swivel chair

Abstract

The utility model discloses a swivel chair of inclinable, include: base, shell and lifting assembly, the shell includes seat, backrest and a pair of opposite setting handrails, lifting assembly installs on the base, lifting assembly with shell operable connection is used for the front end of shell is lifted, makes shell can be lifted or be inclined relative to the base, the utility model has the advantage that the pressure position of adjusting hip and angle are improved, and the comfort degree is improved.

Description

Technical Field

[0001] This utility model belongs to the field of electric seat technology, specifically relating to a tiltable swivel chair. Background Technology

[0002] Electric chairs are now quite common and widely used in residential and office environments. These chairs typically offer multiple modes or position adjustments, such as sitting, viewing, and reclining positions. However, some existing electric chairs, for aesthetic reasons, have integrated armrests and backrests. This means that the chair can only adjust the angle of the footrest to achieve sitting and viewing positions, while the position of the legs and buttocks remains unchanged. Therefore, prolonged use of this fixed posture causes the buttocks and thighs to be under pressure in the same area for extended periods, ultimately leading to discomfort.

[0003] To address this issue, a tiltable swivel chair is proposed, which allows for adjustment of the angle of the hip position, switching the pressure points on the hips and legs, thereby effectively relieving discomfort in the hips and lower torso. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] Therefore, this utility model proposes a tiltable swivel chair, which has the advantage of adjusting the pressure position and angle of the buttocks, thereby improving comfort.

[0006] A tiltable swivel chair according to an embodiment of the present invention includes: a base, a housing, and a lifting assembly; the housing includes a seat, a backrest, and a pair of opposing armrests; the lifting assembly is mounted on the base and is operably connected to the housing for lifting the front end of the housing, so that the housing can be lifted or tilted relative to the base.

[0007] According to one embodiment of the present invention, the seat, backrest and a pair of oppositely arranged armrests are an integral structure.

[0008] According to one embodiment of the present invention, it further includes at least one footstool assembly located at the front end of the housing, the footstool assembly being used to support the footstool thereon.

[0009] According to one embodiment of the present invention, there is a first driving component and a second driving component; the first driving component is connected to the footstool component and is used to drive the footstool component to retract or extend; the second driving component is connected to the outer shell and is used to drive the outer shell to move between a non-tilted position and an inclined position.

[0010] According to one embodiment of the present invention, the base includes a rotating plate assembly for driving the outer casing to rotate.

[0011] According to one embodiment of the present invention, the rotating plate assembly includes: a base plate, a fixed plate, and a rotating plate; the fixed plate is fixedly installed on the base plate, and the rotating plate is rotatably connected to the fixed plate.

[0012] According to one embodiment of the present invention, the lifting assembly includes: a base frame and a connecting frame; the base frame is fixedly connected to the rotating plate, the connecting frame is rotatably connected to one end of the base frame, and the connecting frame is fixedly connected to the outer shell; one end of the second driving assembly is connected to the other end of the base frame, and the other end of the second driving assembly is connected to the connecting frame.

[0013] The beneficial effect of this utility model is that it adopts a lifting component, and the outer shell is installed on the lifting component. The lifting component adjusts the angle of the outer shell, so that the seat supporting the buttocks can be in a horizontal or tilted state, so as to switch the pressure position of the buttocks and legs, reduce discomfort, and improve comfort.

[0014] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention.

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments with accompanying drawings, in which:

[0017] Figure 1 This is a side view of the overall structure of this utility model;

[0018] Figure 2 This is a side view of the overall structure shell of this utility model in an inclined state;

[0019] Figure 3 This is a side and rear view of the present invention with the seat tilted and the footstool assembly extended. For ease of display, the outer shell is hidden here.

[0020] Figure 4 This is a side view of the present invention with the seat tilted and the footstool assembly extended. For ease of display, the outer casing has been hidden here.

[0021] Figure 5This is a side view of the present invention with the seat tilted and the footstool assembly retracted. For ease of display, the outer shell is hidden here.

[0022] Figure 6 This is a side view of the present invention with the seat in a horizontal position and the footstool assembly extended. For ease of display, the outer shell has been hidden here.

[0023] Figure 7 This is a side view of the present invention with the seat in a horizontal position and the footstool assembly in a retracted position. For ease of display, the outer shell has been hidden here.

[0024] Figure 8 This is a top view schematic diagram of the connection between the lifting assembly and the rotating plate assembly of this utility model;

[0025] Figure 9 This is a side and rear view of the connection between the connecting frame and the base frame of this utility model;

[0026] Figure label:

[0027] 100. Swivel chair; 102. Shell; 104. Headrest assembly; 106. Footstool assembly; 108. Rotating plate assembly; 110. Lifting assembly; 112. Frame connector; 114. Rear crossbeam; 116. Upper footstool swing linkage; 117. First connection point; 118. Lower footstool swing linkage; 120. Second connection point; 122. Upper footstool support linkage; 124. Third connection point; 126. Lower footstool support linkage; 128. Fourth connection point; 130. Fifth connection point; 132. Main footstool mounting bracket; 134. Sixth connection point; 136. Seventh connection point; 138. Secondary footstool support linkage; 140. Eighth connection point; 142. Secondary footstool mounting bracket; 144. Ninth connection point; 146. Tenth connection point; 148. First support plane; 150. Second support plane; 52. Front crossbeam; 154. L-shaped mounting plate; 156. First linear brake; 158. First motor end; 160. First U-shaped clamp connector; 162. First output end; 164. Second U-shaped clamp connector; 166. Base plate; 168. Fixing plate; 170. Rotating plate; 171. Base frame; 172. Base frame component; 174. First frame component; 179. Connecting frame; 180. Second frame component; 182. Third frame component; 184. First mounting bracket; 186. Second mounting bracket; 188. Frame extension component; 190. Piano hinge; 192. First hinge leaf; 194. Second hinge leaf; 196. Second linear brake; 198. Second motor end; 200. Third U-shaped clamp connector; 202. Second output end; 204. Fourth U-shaped clamp connector. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The tiltable swivel chair of this utility model is described in detail below with reference to the accompanying drawings.

[0032] like Figures 1-2As shown, the tiltable swivel chair 100 according to an embodiment of the present invention includes: a base, a housing 102, a headrest assembly 104, a pair of footstool assemblies 106, and a lifting assembly 110. The base includes a rotating plate assembly 108. The housing 102 includes a seat, a pair of opposing armrests, and a backrest, which are integrally connected together, so that the pair of opposing armrests and the backrest effectively form the housing 102 into a single unit, providing support for the buttocks, thighs, and waist. The headrest assembly 104 is connected to the upper rear part of the housing 102 and is positioned above the backrest of the housing 102. It provides support for the head; a pair of footstool assemblies 106 are arranged opposite each other, one end of which is rotatably connected to the front end of the outer shell 102, and the other end can move away from or close to the outer shell 102, that is, to retract and extend, so as to achieve the state of raising and lowering the legs; the outer shell 102 is connected to the rotating plate assembly 108 by a lifting assembly 110, so that the front end of the outer shell 102 is raised by the lifting assembly 110, so that the outer shell 102 generates or reaches a predetermined tilt amount, thereby making the seat supporting the buttocks horizontal or tilted, so as to switch the pressure position of the buttocks and legs, reduce discomfort, and improve comfort.

[0033] Specifically, such as Figure 3-4 As shown, the swivel chair 100 also includes: a pair of frame connectors 112 and a rear crossbeam 114; the pair of frame connectors 112 are arranged opposite to each other and are respectively connected to the left and right sides of the frame structure of the outer shell 102, and the rear crossbeam 114 is located at the rear of the outer shell 102, and the two ends of the rear crossbeam 114 are respectively fixedly connected to the rear ends of the pair of frame connectors 112.

[0034] A pair of footstool assemblies 106 are respectively connected to the front ends of a pair of frame connectors 112; the footstool assembly 106 includes: an upper footstool swing link 116, a lower footstool swing link 118, an upper footstool support link 122, and a lower footstool support link 126; the front end of the frame connector 112 is pivotally connected to the rear end of the upper footstool swing link 116 at a first connection point 117, the middle of the frame connector 112 is pivotally connected to the rear end of the lower footstool swing link 118 at a second connection point 120, the front end of the lower footstool swing link 118 is pivotally connected to the rear end of the upper footstool support link 122 at a third connection point 124, the front end of the upper footstool swing link 116 is pivotally connected to the rear end of the lower footstool support link 126 at a fourth connection point 128, and the middle of the upper footstool swing link 116 is pivotally connected to the middle of the upper footstool support link 122 at a fifth connection point 130.

[0035] The footstool assembly 106 also includes: a main footstool mounting bracket 132, a secondary footstool support link 138, and a secondary footstool mounting bracket 142; the front end of the upper footstool support link 122 and the middle of the lower footstool support link 126 are pivotally connected to the main footstool mounting bracket 132 at the sixth connection point 134 and the seventh connection point 136, respectively; the front end of the lower footstool support link 126 is pivotally connected to the rear end of the secondary footstool support link 138 at the eighth connection point 140; the front end of the secondary footstool support link 138 is pivotally connected to the middle of the secondary footstool mounting bracket 142 at the ninth connection point 144; and the rear end of the secondary footstool mounting bracket 142 is pivotally connected to the main footstool mounting bracket 132 at the tenth connection point 146.

[0036] The main footstool mounting bracket 132 is provided with a first support plane 148, and the auxiliary footstool mounting bracket 142 is provided with a second support plane 150. The first support plane 148 and the second support plane 150 are used to install footstools or leg rests.

[0037] The swivel chair 100 also includes a front crossbeam 152 and a first drive assembly. The two ends of the front crossbeam 152 are fixedly connected to the two footstool swing linkages 118 by L-shaped mounting plates 154. The first drive assembly is a first linear brake 156. The first motor end 158 of the first linear brake 156 is pivotally connected to the rear crossbeam 114 via a first U-shaped clamp connector 160 fixed on the rear crossbeam 144. The first output end 162 of the first linear brake 156 is pivotally connected to the front crossbeam 152 via a second U-shaped clamp connector 164 fixed on the front crossbeam 152.

[0038] In other words, by using the first linear brake 156 to drive the front crossbeam 152 to approach or move away from the rear crossbeam 114, the footrest assembly 106 is extended or retracted, thereby enabling the footrest or leg rest to be raised or lowered. When the footrest or leg rest is raised, it can provide support for the lower leg.

[0039] Furthermore, such as Figure 8 As shown, the rotating plate assembly 108 includes: a base plate 166, a fixed plate 168, and a rotating plate 170; the fixed plate 168 is fixedly installed on the base plate 166, the rotating plate 170 is rotatably connected to the fixed plate 168, and the lifting assembly 110 is fixedly installed on the rotating plate 170.

[0040] Specifically, the lifting assembly 110 includes a base frame 171, which includes a pair of base frame members 172 and a plurality of first frame members 174. The pair of base frame members 172 are arranged opposite to each other and extend in the front-rear direction. The plurality of first frame members 174 are spaced apart along the extension direction of the base frame members 172 and are fixedly connected at both ends to the pair of base frame members 172 respectively. Some of the first frame members 174 are fixedly connected to the rotating plate 170.

[0041] Preferably, there are three first frame members 174, wherein two adjacent first frame members 174 are fixedly connected to the rotating plate 170 to achieve a fixed connection between the lifting assembly 110 and the rotating plate 170. The fixed plate 168 and the rotating plate 170 are connected by a rotary electrical connector and are powered by a suitable power supply PS. Rotary electrical connectors have various names in the industry, such as rotary interface connectors, rotary electrical interfaces, rotary electrical connectors, current collectors, etc.

[0042] Specifically, the rotary electrical connector comprises two mating and rotatable rotary electrical components, each mounted on a structural component, one of which is rotatable relative to the other. Thus, the lower of the two rotary electrical components constituting the rotary electrical connector is fixedly mounted on a fixed plate 168, while the upper of the two rotary electrical components constituting the rotary electrical connector is fixedly mounted on the bottom of a rotating plate 170. The housing 102 is fixedly mounted on a lifting assembly 110. Power is then transmitted from a power source PS via a power line to the rotary electrical component mounted on the fixed plate 168, and then to the rotary electrical component mounted on the rotating plate 170. An electrical connection located inside the swivel chair 100 subsequently powers at least one electric brake, which is mounted within the internal drive structure system of the swivel chair 100, such that at least a portion of the swivel chair 100 can be driven or moved as needed. This movement can include, for example, movement of the headrest assembly 104, footrest assembly 106, rotating plate assembly 108, and lifting assembly 110, enabling the swivel chair 100 to reach any of several different tilt and rotation / return positions.

[0043] In this embodiment, since the power cord is not connected to the rotating part of the swivel chair 100, interference with the rotation is avoided, allowing the swivel chair 100 to rotate 360 ​​degrees or more without causing the power cord to become tangled, coiled, or knotted, because the power cord never moves.

[0044] like Figure 3-4 As shown in Figure 9, since the base frame 171 of the lifting assembly 110 is fixedly mounted on the rotating plate 170, the lifting assembly 110 is also fixedly mounted on the rotating plate 170. Furthermore, the lifting assembly 110 includes a connecting frame 179, which consists of a pair of opposing longitudinally extending second frame members 180 and a transverse third frame member 182. The front end of the second frame member 180 is provided with a first mounting bracket 184, and the rear end of the second frame member 180 is provided with a second mounting bracket 186. The first mounting bracket 184 and the second mounting bracket 186 are fixedly connected to the inner surface of the outer casing 102.

[0045] The rear end of the second frame member 180 is provided with a frame extension member 188, which is fixedly connected to an additional transverse frame member (not shown or invisible). Furthermore, a first hinge leaf 192 of a transverse piano hinge 190 is fixedly connected to the additional transverse frame member (not shown or invisible), while a corresponding second hinge leaf 194 is fixedly connected to the rear first frame member 174. This connects the housing 102 to the rotating plate assembly 108.

[0046] The swivel chair 100 also includes a second drive assembly, which is a second linear brake 196. The second motor end 198 of the second linear brake 196 is pivotally connected to the front first frame member 174 via a suitable third U-shaped clip connector 200. The second output end 202 of the second linear brake 196 is pivotally connected to the third frame member 182 via another suitable fourth U-shaped clip connector 204.

[0047] The operation of the swivel chair 100 is as follows: When the first linear brake 156 is activated and extended, the front crossbeam 152 moves forward, causing a pair of opposing lower footstool swing links 118 to rotate clockwise relative to a pair of opposing frame connectors 112. Correspondingly, the movement of the pair of opposing lower footstool swing links 118 causes a pair of opposing upper footstool support links 122 to rotate clockwise, as do a pair of opposing upper footstool swing links 116. Furthermore, the movement of the pair of opposing upper footstool swing links 116 causes the pair of opposing lower footstool support links 126 to move forward and extend. Therefore, the movement of a pair of opposing upper footstool swing links 116 and a pair of opposing lower footstool support links 126 will cause a pair of opposing main footstool mounting brackets 132 to rotate clockwise. This will bring the pair of opposing first footstool support planes 148 to a horizontal position, whereas they are vertical when the pair of opposing footstool assemblies 106 are in the retracted or folded position. Finally, the clockwise movement of the pair of opposing main footstool mounting brackets 132 will also force the pair of opposing auxiliary footstool mounting brackets 142 to rotate clockwise around the tenth connection point 146 of the connecting pivot, causing the pair of opposing second footstool support planes 150 to be in a horizontal position and coplanar with the pair of opposing first footstool support planes 148. Therefore, the pair of opposing footstool assemblies 106 will be in the fully extended position at this time.

[0048] Specifically, when the second linear brake 196 is activated to extend its second output end 202, the second output end 202 acts on the third frame member 182 and raises it. This effectively rotates the entire connecting frame 179 about the axis defined by the piano hinge mechanism 190, thereby raising the front end of the connecting frame 179. Consequently, the front end of the entire swivel chair 100, particularly the outer shell 102 containing a pair of opposing armrests and a backrest, is raised, allowing the swivel chair 100 to reach its tilting mode. In this way, the swivel chair 100 can... Figure 7 The seating positions shown or Figure 6 The television viewing position shown (at which point the pair of opposing footstool assemblies 106 are extended) is moved to... Figure 5 or Figure 4 The tilt position shown.

[0049] Given that the connecting frame 179 in the lifting assembly 110 is mounted on the rotating plate assembly 108, and as described above, the rotation drive structure is completely independent of the lifting assembly 110, the swivel chair 100 can tilt and rotate simultaneously. Finally, when the second output end 202 of the second linear brake 196 is activated and retracted, the lifting assembly 110 and the housing 102 will return from the tilting mode to the seated position.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A tiltable swivel chair, characterized in that, include: Base; The housing (102) includes a seat, a backrest, and a pair of opposing armrests; A lifting assembly (110) is mounted on a base and is operably connected to a housing (102) for lifting the front end of the housing (102) so that the housing (102) can be lifted or tilted relative to the base.

2. The tiltable swivel chair according to claim 1, characterized in that, The seat, backrest, and a pair of opposing armrests are a single integrated structure.

3. The tiltable swivel chair according to claim 2, characterized in that, It also includes at least one footstool assembly (106) located at the front end of the housing (102) for supporting a footstool thereon.

4. The tiltable swivel chair according to claim 3, characterized in that, include: A first drive assembly is connected to the footstool assembly (106) and is used to drive the footstool assembly (106) to contract or expand. A second drive assembly is connected to the housing (102) and is used to drive the housing (102) to move between a non-tilted position and a tilted position.

5. The tiltable swivel chair according to claim 4, characterized in that, The base includes a rotating plate assembly (108) for driving the housing (102) to rotate.

6. The tiltable swivel chair according to claim 5, characterized in that, The rotating plate assembly (108) includes: a base plate (166), a fixing plate (168), and a rotating plate (170); the fixing plate (168) is fixedly installed on the base plate (166), and the rotating plate (170) is rotatably connected to the fixing plate (168).

7. The tiltable swivel chair according to claim 6, characterized in that, The lifting assembly (110) includes: a base frame (171) and a connecting frame (179); the base frame (171) is fixedly connected to the rotating plate (170), the connecting frame (179) is rotatably connected to one end of the base frame (171), and the connecting frame (179) is fixedly connected to the outer shell (102); one end of the second drive assembly is connected to the other end of the base frame (171), and the other end of the second drive assembly is connected to the connecting frame (179).

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