A reversible chair

Abstract

This utility model provides a reversible chair, comprising: a back panel and a backrest seat; the back panel is hinged to the backrest seat, and the back panel is provided with a switching component, which is movably connected to the backrest seat for switching the back panel to a first state or a second state, so that the back panel can be switched to either a backrest or a table; the first state is an inclined or vertical state, and the second state is a horizontal state. This utility model, by hinged the back panel to the backrest seat and providing a switching component, realizes the switching between the first and second states of the back panel, allowing the back panel to freely switch between the two functions of a backrest and a table, forming a reversible chair that combines sitting and table functions, meeting the needs of users and the market for diversified furniture functions and high cost-effectiveness.

Description

Technical Field

[0001] This utility model relates to the field of multifunctional chair technology, and more specifically to a chair that can be flipped and used in two ways. Background Technology

[0002] Chairs are indispensable furniture in daily life and office settings. Traditional chairs typically only have the single function of seating, satisfying people's basic needs for sitting and cannot fulfill other uses. If users want to meet their needs for reading, writing, or temporarily placing items, they need to purchase a separate table, increasing economic costs. Therefore, chairs with traditional seating functions are difficult to meet people's current demands for diversified and cost-effective furniture. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the prior art and provide a chair that can be flipped and used in two ways, so as to solve the technical problems of limited uses and low cost performance of traditional chairs.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model provides a reversible chair, which includes: a back panel and a backrest seat; the back panel is hinged to the backrest seat, and the back panel is provided with a switching component, which is movably connected to the backrest seat for switching the back panel to a first state or a second state, so that the back panel can be switched to a backrest or a table; the first state is an inclined or vertical state, and the second state is a horizontal state.

[0006] The backrest is provided with a first connecting slot and a second connecting slot. The switching component is connected to the first connecting slot or the second connecting slot so that the back panel is in a first state or a second state.

[0007] The switching component includes a mounting base and an abutment; the mounting base is fixedly connected to the back plate, and the abutment is slidably connected to the mounting base. Sliding the abutment allows it to be inserted into or removed from the first connecting slot or the second connecting slot.

[0008] The switching component further includes an elastic element; the elastic element is located between the end of the mounting base away from the backrest and the abutting member, and abuts against the end of the abutting member away from the backrest.

[0009] The switching component further includes: an actuating element; the actuating element is connected to the abutting element, the actuating element extends from the mounting base to the outside of the mounting base, and the actuating element is pulled or released to move the abutting element away from or closer to the backrest.

[0010] The abutting member is parallel to the back plate, the first connecting groove is a vertical groove, and the second connecting groove is a horizontal groove.

[0011] The back panel is provided with a hinge seat, which is hinged to the backrest seat, and the switching component is connected inside the hinge seat.

[0012] The hinge seat has two connecting ears protruding on the side away from the back plate, and the backrest seat passes between the two connecting ears and is hinged to the connecting ears.

[0013] The hinge seat is provided with a through hole, which is located between the two connecting ears.

[0014] The switching component is located on the side of the perforation away from the backrest.

[0015] The advantages of this utility model compared with the prior art are: by hinged to the backrest seat and setting a switching component, this utility model realizes the switching between the first and second states of the backrest, so that the backrest can be freely converted between the two functions of backrest and table, forming a dual-purpose chair that combines sitting and table functions, thus meeting the needs of users and the market for diversified furniture functions and high cost performance.

[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this utility model more obvious and understandable, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0017] Figure 1 A schematic diagram of the first state of a reversible chair provided by this utility model;

[0018] Figure 2 A schematic diagram of the second state of a reversible chair provided by this utility model;

[0019] Figure 3 A top view of the first state of a reversible chair provided by this utility model;

[0020] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at point AA;

[0021] Figure 5 for Figure 4 A magnified structural diagram of local point B;

[0022] Figure 6A schematic diagram of the connection structure between the backrest and the hinge seat of a reversible chair provided by this utility model.

[0023] Figure 7 A schematic diagram of the connection structure between the backrest and the hinge seat of a reversible chair provided by this utility model from another perspective.

[0024] Figure 8 An exploded structural diagram of the backrest and hinge seat of a reversible chair provided by this utility model.

[0025] Figure label:

[0026] 1. Back panel; 2. Backrest seat; 21. First connecting groove; 22. Second connecting groove; 3. Switching assembly; 31. Mounting base; 311. Slide groove; 32. Abutment; 33. Elastic element; 34. Actuating element; 4. Hinge seat; 41. Connecting ear; 42. Rotating shaft; 43. Through hole; 5. Screw; 6. Seat plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] It should be understood that, when used in this specification and the appended claims, the terms “comprising” and “including” indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0029] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0030] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0031] See Figure 1-8 As shown, this embodiment discloses a reversible chair, including: a back panel 1 and a backrest seat 2; the back panel 1 is hinged to the backrest seat 2, and the back panel 1 is provided with a switching component 3, which is movably connected to the backrest seat 2 for switching the back panel 1 to a first state or a second state, so that the back panel 1 can be switched to a backrest or a table; the first state is an inclined or vertical state, and the second state is a horizontal state.

[0032] The reversible chair in this embodiment hinges the back panel 1 to the backrest seat 2 and sets up a switching component 3 to realize the switching between the first state and the second state of the back panel 1. This allows the back panel 1 to freely switch between the two functions of backrest and table, forming a two-in-one chair that combines sitting and table functions, thus meeting the needs of users and the market for diversified furniture functions and high cost performance.

[0033] In practice, the back panel 1 can be switched to or kept in the first state so that it has a backrest function. At this time, the user can sit on the seat 6 of the chair and lean against the backrest. The back panel 1 can be switched to or kept in the horizontal state so that it has a table function. At this time, the user can face the back panel 1 and straddle the seat 6, and can sit on the seat 6 to use the table for reading, writing, working and placing items.

[0034] Specifically, the backrest 2 is provided with a first connecting groove 21 and a second connecting groove 22. The switching component 3 connects to the first connecting groove 21 or the second connecting groove 22 to make the back panel 1 in a first state or a second state. Specifically, the opening direction of the first connecting groove 21 and the second connecting groove 22 matches the required state of the back panel 1, and stable positioning is achieved through mechanical limiting. When it is necessary to switch states, the user operates the switching component 3 to make the switching component 3 cooperate with the first connecting groove 21 or the second connecting groove 22 to change the state of the back panel 1. The design of the first connecting groove 21 and the second connecting groove 22 provides clear physical positioning points. The first connecting groove 21 provides angular support when the backrest function is achieved, and the second connecting groove 22 ensures the horizontal accuracy of the tabletop state, ensuring that the back panel 1 remains stable in both usage states.

[0035] Specifically, the switching component 3 includes a mounting base 31 and an abutment 32. The mounting base 31 is fixedly connected to the back plate 1, and the abutment 32 is slidably connected to the mounting base 31. The sliding abutment 32 allows it to insert into or leave the first connecting groove 21 or the second connecting groove 22. The mounting base 31 guides the abutment 32 to move linearly, causing it to move closer to or further away from the backrest 2. When the abutment 32 slides into the connecting groove, it locks in place, and when it slides out, it allows the back plate 1 to rotate. More specifically, when the abutment 32 approaches the backrest seat 2 and slides into the first connecting groove 21 or the second connecting groove 22, the abutment 32 engages with the first connecting groove 21 or the second connecting groove 22, locking the back panel 1 and the backrest seat 2, thus fixing the angle between the back panel 1 and the backrest seat 2. When the abutment 32 moves away from the backrest seat 2 and slides out from the first connecting groove 21 or the second connecting groove 22, the back panel 1 and the backrest seat 2 are unlocked, allowing the back panel 1 to rotate relative to the backrest seat 2 to the position corresponding to the other connecting groove. After the locking operation is completed, the state of the back panel 1 can be switched. Therefore, the sliding connection between the abutment 32 and the mounting base 31, and the engagement between the abutment 32 and the backrest seat 2, enable rapid state switching of the back panel 1.

[0036] Specifically, the switching component 3 further includes an elastic element 33; the elastic element 33 is located between the end of the mounting base 31 away from the backrest 2 and the abutment 32, and abuts the end of the abutment 32 away from the backrest 2. The elastic element 33 provides an automatic reset function to ensure that the abutment 32 always abuts the backrest 2, thereby ensuring that the back panel 1 and the backrest 2 remain locked in the non-unlocked operation state, improving safety and preventing accidental unlocking. Under normal conditions, the elastic element 33 pushes the abutment 32 toward the backrest 2. When the abutment 32 is facing the first connecting groove 21 or the second connecting groove 22, under the pushing action of the elastic element 33, the abutment 32 automatically enters the first connecting groove 21 or the second connecting groove 22 and maintains the insertion state with the first connecting groove 21 or the second connecting groove 22. When it is necessary to switch the state of the back panel 1, the abutment 32 is moved away from the backrest 2 so that the elastic force can be overcome by external force to retract the abutment 32, thereby separating the abutment 32 from the first connecting groove 21 and the second connecting groove 22, realizing the unlocking of the back panel 1 and the backrest 2, and the back panel 1 can then rotate.

[0037] In this embodiment, the elastic element 33 is a compression spring. It is understood that in other embodiments, a spring sheet, a rubber pillar, or other elastic elements 33 may be used instead of a compression spring, depending on actual needs.

[0038] Specifically, the switching component 3 further includes an actuating element 34; the actuating element 34 is connected to the abutment 32 and extends from the mounting base 31 to the outside of the mounting base 31. Pulling or releasing the actuating element 34 causes the abutment 32 to move away from or closer to the backrest 2. The actuating element 34 serves as an operating element for the user to unlock the back panel 1 and can change the connection relationship between the abutment 32 and the backrest 2. In practice, the user holds the actuating element 34 and moves it away from the backrest 2 towards the abutment 32. This allows the actuating element 34 to transmit the pulling force applied by the user to the abutment 32, causing the abutment 32 to move away from the backrest 2. When the abutment 32 is pulled, it overcomes the resistance of the elastic element 33, causing the elastic element 33 to be compressed. When the abutment 32 slides out of the first connecting groove 21 or the second connecting groove 22, the locking of the back panel 1 is released. When the user releases the actuating element 34, the actuating element 34 is released, and the elastic element 33 returns to its natural state, pushing the abutment 32 closer to the backrest 2. Upon release, the elastic element 33 pushes back to its original position. Furthermore, the exposed actuating element 34 provides a clear interaction method between the user and the chair, making operation intuitive and effortless, significantly improving user convenience and experience. It also eliminates the need for additional energy and drive structures inside the chair, resulting in a simple and reliable chair structure. Simultaneously, it reduces the production cost of the reversible chair, thereby improving the user's cost-effectiveness.

[0039] Preferably, the actuating element 34 is a pull cord, with both ends of the pull cord fixed to the end of the abutment 32 away from the backrest seat 2 by bolts and nuts, thus forming a pull ring. The user can easily pull the abutment 32 by inserting their hand into the pull ring and grasping the pull cord. The pull cord is flexible, skin-friendly, and comfortable, improving the user experience. It is understood that in other embodiments, a rigid straight plate, a rod-shaped element, or other actuating elements 34 can be used instead of the pull cord, depending on actual needs.

[0040] Specifically, the abutment 32 is parallel to the back plate 1. The abutment 32 maintains a parallel movement trajectory with the back plate 1, ensuring the fitting accuracy with the connecting grooves in different directions, simplifying the structure of the switching assembly 3. Furthermore, the abutment 32 only bears the push-pull force that is the same as or opposite to the extension direction of the back plate 1, avoiding lateral force due to angular misalignment, and improving the stability and durability of the switching assembly 3.

[0041] Specifically, the first connecting groove 21 is a vertical groove, and the second connecting groove 22 is a horizontal groove. The vertical groove limits the tilt angle of the back panel 1 in the backrest position, while the horizontal groove ensures the flatness of the tabletop. The directional design of the first connecting groove 21 and the second connecting groove 22 provides a clear distinction between states, allowing the user to clearly know whether the back panel 1 has been rotated into place. In practice, when the user continuously pulls the actuating element 34, keeping the abutting element 32 separated from the backrest seat 2, and then rotates the back panel 1 to a vertical or horizontal position, releasing the actuating element 34 allows the abutting element 32 to enter the first connecting groove 21 or the second connecting groove 22. At this point, the back panel 1 can no longer rotate, thus locking the back panel 1 and the backrest seat 2.

[0042] It is understood that, in other embodiments, the first connecting groove 21 may be an inclined groove. The back panel 1 is inclined at a certain angle to adapt to ergonomic settings and provide users with a comfortable leaning experience.

[0043] Specifically, the back panel 1 is provided with a hinge seat 4, which is hinged to the backrest seat 2, and the switching component 3 is connected inside the hinge seat 4. More specifically, the mounting base 31 and the inner wall of the hinge seat 4 form a groove 311, and the abutment 32 is slidably connected to the groove 311. The actuating element 34 extends from inside the mounting base 31 to outside the hinge seat 4. The hinge seat 4 serves as the connecting hub between the back panel 1 and the backrest seat 2, enabling relative rotation between the two. When it is necessary to switch the state of the back panel 1, the user pulls the actuating element 34 to unlock it, and the back panel 1 can rotate relative to the backrest seat 2. In addition, the hinge seat 4 provides installation space for the switching component 3, making the overall structure more compact. It also prevents the abutment 32, the elastic element 33, and the mounting base 31 from being exposed outside the hinge seat 4, avoiding the structure falling and causing the back panel 1 to be accidentally unlocked. It also prevents external water or instruments from entering the switching component 3 and damaging its internal structure, thus ensuring the service life of the switching component 3 and the chair.

[0044] Specifically, the hinge seat 4 has two connecting ears 41 protruding on the side away from the back panel 1. The backrest 2 passes between the two connecting ears 41 and is hinged to them. More specifically, the two connecting ears 41 are symmetrically arranged. The foldable chair of this embodiment also includes a rotating shaft 42. The connecting ears 41 and the backrest 2 are provided with shaft holes corresponding to the rotating shaft 42 (not shown in the figure). The rotating shaft 42 passes through the shaft holes. The two connecting ears 41 and the hinge seat 4 form a U-shaped clamping structure, which wraps around the connecting end of the backrest 2. The rotating shaft 42 passes through the shaft holes corresponding to the connecting ears 41 and the backrest 2, forming a rotatable hinge point. The symmetrical design of the two connecting ears 41 ensures that the force is evenly distributed on the two connecting ears 41, avoiding deformation caused by unilateral force, improving the stability and load-bearing capacity of the hinge point, and thus making the rotation of the back panel 1 more stable, reducing swaying, and improving the user experience.

[0045] Specifically, the hinge seat 4 is provided with a through hole 43, which is located between the two connecting ears 41. The through hole 43 provides a channel for the insertion and separation of the abutment 32 and the backrest seat 2. More specifically, in the locked state of the back plate 1, the abutment 32 extends from the slide groove 311 through the through hole 43 to the first connecting groove 21 or the second connecting groove 22.

[0046] Specifically, the switching component 3 is located on the side of the perforation 43 away from the backrest 2. It is understood that in this embodiment, the hinge seat 4 is T-shaped, with the two connecting ears 41 located on a straight line, and the switching component 3 located on the center line of that line. The switching component 3, located between the two connecting ears 41, further improves the force balance of the hinge seat 4 and the backrest 1, thereby improving the structural stability of the backrest 1 and extending the chair's service life.

[0047] Specifically, both the hinge seat 4 and the back plate 1 are provided with two screw holes (not marked in the figure), and screws 5 are inserted into the screw holes and screwed into the screw holes; the two screw holes on the hinge seat 4 are located on the outside of the two connecting ears 41. Through the double screw hole structure symmetrically distributed on the outside of the two connecting ears 41, and fastened with screws 5, a rigid connection between the hinge seat 4 and the back plate 1 is achieved. This ensures the connection strength between the hinge seat 4 and the back plate 1, enabling the hinge seat 4 to withstand the torsional load when the back plate 1 rotates, and avoids local stress concentration by distributing the stress points. At the same time, the arrangement of the two screw holes on the outside of the two connecting ears 41 facilitates the operation of assembly tools and does not interfere with the normal operation of the rotating shaft 42 and the connecting ears 41, thus ensuring structural stability while taking into account the convenience of manufacturing and maintenance.

[0048] It is understood that the reversible chair in this embodiment also includes: a seat 6; and a backrest 2 with one end fixedly connected to the seat 6 away from the backrest 1. By fixing the backrest 2 to the seat 6, a stable connection is achieved between the backrest 1, the backrest 2, and the seat 6. This allows the chair to maintain its regular seating function while also switching to a table function by flipping the backrest 1. This ensures the structural stability between the backrest 2 and the seat 6, enabling it to withstand the load when the user leans against or uses the table. It also provides a stable support base for the flipping movement of the backrest 1, making the state switching process of the backrest 1 smooth and reliable. At the same time, the overall structure is compact and reasonable, achieving dual-use functionality without additional support components, thus balancing practicality and space utilization.

[0049] This embodiment provides a reversible chair. By hinged the back panel to the backrest seat and setting a switching component, the back panel can be switched between a first state and a second state, allowing the back panel to freely switch between the two functions of a backrest and a tabletop, forming a dual-purpose chair that combines sitting and tabletop functions, thus meeting the needs of users and the market for diversified furniture functions and high cost performance.

[0050] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A reversible chair, characterized in that, include: Back panel and backrest seat; the back panel is hinged to the backrest seat, the back panel is provided with a switching component, the switching component is movably connected to the backrest seat, and is used to switch the back panel to a first state or a second state, so that the back panel can be switched to a backrest or a table; the first state is an inclined or vertical state, and the second state is a horizontal state.

2. The reversible chair according to claim 1, characterized in that, The backrest is provided with a first connecting slot and a second connecting slot. The switching component is connected to the first connecting slot or the second connecting slot so that the back panel is in a first state or a second state.

3. The reversible chair according to claim 2, characterized in that, The switching component includes: a mounting base and an abutment; the mounting base is fixedly connected to the back plate, and the abutment is slidably connected to the mounting base, and the abutment is slidable to insert into or leave the first connecting slot or the second connecting slot.

4. The reversible chair according to claim 3, characterized in that, The switching component further includes: an elastic element; the elastic element is disposed between the end of the mounting base away from the backrest and the abutting element, and abuts against the end of the abutting element away from the backrest.

5. The reversible chair according to claim 3, characterized in that, The switching component further includes: an actuating element; the actuating element is connected to the abutting element, the actuating element extends from the mounting base to the outside of the mounting base, and the actuating element is pulled or released to move the abutting element away from or closer to the backrest.

6. The reversible chair according to claim 3, characterized in that, The abutment is parallel to the back plate, the first connecting groove is a vertical groove, and the second connecting groove is a horizontal groove.

7. The reversible chair according to claim 1, characterized in that, The back panel is provided with a hinge seat, which is hinged to the backrest seat, and the switching component is connected inside the hinge seat.

8. The reversible chair according to claim 7, characterized in that, The hinge seat has two connecting ears protruding on the side away from the back plate, and the backrest seat passes between the two connecting ears and is hinged to the connecting ears.

9. The reversible chair according to claim 8, characterized in that, The hinge seat is provided with a through hole, which is located between the two connecting lugs.

10. The reversible chair according to claim 9, characterized in that, The switching component is located on the side of the perforation away from the backrest.

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