An air bag type recliner

Abstract

The utility model relates to the technical field of riding appliance, specifically disclose an air bag type telescopic deck chair, include: riding part, main elastic pivot is installed in the front end of riding part, leg and foot support subassembly, leg and foot support subassembly is hinged with riding part through main elastic pivot, telescopic air bag, telescopic air bag is installed below both riding part and leg and foot support subassembly, the gas filling and discharging system is connected to telescopic air bag for the telescopic air bag is inflated and deflated operation, wherein, leg and foot support subassembly has the recovery state that is turned inwards under the elastic pretightening force of main elastic pivot effect, and has the extended state that is turned outwards under the expansion force of telescopic air bag effect. The deck chair of air bag type provided by the utility model can effectively solve the problem of high cost caused by the extension and recovery of leg support and foot support of the existing deck chair through the connecting rod telescopic mechanism.

Description

Technical Field

[0001] This utility model relates to the field of riding equipment technology, and in particular to an airbag telescopic recliner. Background Technology

[0002] To enhance user comfort and health, many chairs are equipped with leg and foot supports. The main function of these supports is to assist the user's lower legs and feet when in a supine or semi-reclining position, effectively reducing leg pressure, promoting blood circulation, and thus achieving a weightless, relaxing experience.

[0003] Currently, the industry commonly uses a linkage telescopic mechanism to achieve the extension and retraction of the leg and footrests. This mechanism is usually powered by a motor and uses a complex multi-link hinge system to convert rotational motion into translation and posture changes of the leg support components. However, the traditional linkage telescopic solution has an extremely complex linkage structure and high cost, which results in a high cost for seats with reclining functions.

[0004] Therefore, existing recliners need to be improved to address the problem of excessive costs caused by their use of a linkage telescopic mechanism to extend and retract the leg and footrests.

[0005] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] One objective of this invention is to provide an air-cushioned telescopic recliner that effectively solves the problem of excessively high costs associated with existing recliners that use a linkage telescopic mechanism to extend and retract the leg and footrests.

[0007] To achieve the above objectives, this utility model provides an airbag-type telescopic recliner, comprising:

[0008] Passenger section;

[0009] The main flexible pivot is installed at the front end of the seating section;

[0010] A leg support assembly, which is hinged to the seating portion via the main elastic pivot.

[0011] A telescopic airbag is installed below both the seating area and the leg support assembly;

[0012] An inflation / deflation system, which is connected to the telescopic airbag, is used to inflate and deflate the telescopic airbag.

[0013] The leg support assembly has a retracted state in which it rotates inward under the elastic preload of the main elastic shaft, and an extended state in which it rotates outward under the expansion force of the telescopic airbag.

[0014] Optionally, the main elastic shaft is a torsion spring hinge.

[0015] Optionally, the main elastic shaft includes:

[0016] The seating section and the leg support assembly are hinged together by the hinge;

[0017] A tension spring, one end of which is fixed to the bottom of the seating part and the other end of which is fixed to the bottom of the leg support assembly.

[0018] Optionally, when the leg support assembly is in the extended state, the cross-sectional shape of the telescopic airbag is elongated.

[0019] Optionally, the leg support assembly includes a leg support portion with one end hinged to the seating portion via the main elastic pivot, a secondary elastic pivot mounted on the other end of the leg support portion, and a foot support portion hinged to the leg support portion via the secondary elastic pivot.

[0020] Optional, also includes:

[0021] A backrest assembly, which is hinged to the rear end of the seating portion;

[0022] A backrest link, one end of which is hinged to the backrest assembly;

[0023] A direct-drive linkage mechanism, wherein the drive end of the direct-drive linkage mechanism is hinged to the other end of the backrest linkage;

[0024] in,

[0025] When the direct-drive mechanism drives the backrest link forward, the backrest assembly rotates downward to a reclining position; when the direct-drive mechanism drives the backrest link backward, the backrest assembly rotates upward to an upright position.

[0026] Optionally, the seating area is provided with telescopic armrests of adjustable length on both sides;

[0027] The telescopic armrest includes a fixed armrest fixed to the seating area and a sliding armrest slidably connected to the fixed armrest.

[0028] Optionally, at least one of the fixed handrails is equipped with a control panel, which is electrically connected to the linkage direct drive mechanism and / or the inflation / deflation system.

[0029] Optionally, the backrest assembly includes a back support plate hinged to the seating portion, a head support plate spaced in front of the back support plate, and a pivot connecting the back support plate and the head support plate; wherein the head support plate has a folded state where it rotates to fit against the back support plate, and a flat state where it rotates to be flush with the back support plate. See also Figure 1 When sitting upright is required, simply rotate the headrest to the folded position to use it as a backrest; see also Figure 2 When you need to lie down, you need to manually rotate the head support board to a flat position to extend the length of the entire airbag telescopic recliner and provide support for your head.

[0030] Optional, also includes:

[0031] A seat base, wherein the seating portion is mounted on the top of the seat base, and the front end of the seating portion protrudes forward relative to the seat base;

[0032] Several casters are installed at the bottom of the seat base.

[0033] The beneficial effects of this utility model are as follows: It provides an air-cushioned telescopic recliner. When the user needs to stretch their legs, the inflation / deflation system inflates the telescopic airbag. The expansion of the airbag generates expansion force, pushing the leg support component to rotate outward around the main elastic pivot, reaching the extended state, thereby supporting the user's legs and feet. When the user needs to retract the leg support component, the inflation / deflation system deflates the telescopic airbag. The telescopic airbag contracts, and the elastic preload of the main elastic pivot causes the leg support component to rotate inward, returning to the retracted state.

[0034] The extension and retraction of the leg support component is controlled by a telescopic airbag and an inflation / deflation system, replacing the traditional complex linkage telescopic mechanism. This simplifies the overall structure, significantly reduces manufacturing costs, and enables the leg support component to extend and retract smoothly and reliably. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A schematic diagram of the retractable airbag recliner provided in the embodiment;

[0037] Figure 2 This is a schematic diagram of the extended state of the airbag-type telescopic recliner provided in the embodiment.

[0038] In the picture:

[0039] 1. Seating area;

[0040] 2. Main flexible rotating shaft;

[0041] 3. Leg support assembly; 301. Leg support section; 302. Secondary elastic pivot; 303. Foot support section;

[0042] 4. Telescopic airbags;

[0043] 5. Inflation / deflation system;

[0044] 6. Backrest assembly; 601. Back support plate; 602. Head support plate; 603. Swivel joint;

[0045] 7. Backrest linkage;

[0046] 8. Linkage direct drive mechanism;

[0047] 9. Telescopic handrail; 901. Fixed handrail; 902. Sliding handrail;

[0048] 10. Control Panel;

[0049] 11. Seat base;

[0050] 12. Casters. Detailed Implementation

[0051] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0052] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0053] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0054] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0055] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0056] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0057] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0058] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0059] The direct drive mechanism in this invention can be a linear motor, a cylinder, a hydraulic cylinder, or a motor lead screw and slider assembly, etc.; the rotary drive mechanism can be a servo motor, a stepper motor, or a rotary cylinder, etc.

[0060] See Figure 1 This embodiment provides an airbag-type telescopic recliner, comprising:

[0061] Passenger Section 1;

[0062] The main elastic pivot 2 is installed at the front end of the seating part 1;

[0063] Leg support assembly 3, which is hinged to the seating part 1 via the main elastic pivot 2;

[0064] A telescopic airbag 4 is installed below both the seating part 1 and the leg support assembly 3;

[0065] An inflation / deflation system 5 is connected to the telescopic airbag 4 and is used to inflate and deflate the telescopic airbag 4.

[0066] The leg support assembly 3 has a retracted state in which it rotates inward under the elastic pre-tightening force of the main elastic rotating shaft 2; and an extended state in which it rotates outward under the expansion force of the telescopic airbag 4.

[0067] Optionally, the inflation / deflation system 5 includes an air pump, gas pipelines, and air valves, which are existing technologies and will not be described in detail in this embodiment.

[0068] When the user needs to extend their legs, the inflation / deflation system 5 inflates the telescopic airbag 4. The expansion of the telescopic airbag 4 generates expansion force, pushing the leg support component 3 to rotate outward around the main elastic shaft 2, reaching the extended state, thereby supporting the user's legs and feet. When the user needs to retract the leg support component 3, the inflation / deflation system 5 deflates the telescopic airbag 4. The telescopic airbag 4 contracts, and the elastic preload of the main elastic shaft 2 causes the leg support component 3 to rotate inward, returning to the retracted state.

[0069] The extension and retraction of the leg support assembly 3 is controlled by the telescopic airbag 4 and the inflation and deflation system 5, which replaces the traditional complex linkage telescopic mechanism, simplifies the overall structure, significantly reduces manufacturing costs, and at the same time realizes the smooth and reliable extension and retraction of the leg support assembly 3.

[0070] In this embodiment, the main elastic pivot 2 is a torsion spring hinge. In the retracted state, the torsion spring hinge is in a torsional state, storing elastic potential energy; when the telescopic airbag 4 deflates, the torsion spring hinge releases its potential energy, driving the leg support assembly 3 to automatically rotate inward. The torsion spring hinge has a simple and durable structure, providing a stable elastic preload, ensuring that the leg support assembly 3 retracts quickly and reliably after deflation, thus improving the system's response speed and reliability.

[0071] In some other embodiments, the main elastic shaft 2 includes:

[0072] The seating portion 1 and the leg support assembly 3 are hinged together by the hinge.

[0073] A tension spring, one end of which is fixed to the bottom of the seating part 1 and the other end of which is fixed to the bottom of the leg support assembly 3.

[0074] The hinge connects the seating section 1 to the leg support assembly 3; one end of the tension spring is fixed to the bottom of the seating section 1, and the other end is fixed to the bottom of the leg support assembly 3. In the retracted state, the tension spring is stretched to store energy; when the telescopic airbag 4 deflates, the tension spring contracts, pulling the leg support assembly 3 to rotate around the hinge.

[0075] In this embodiment, when the leg support component 3 is in the extended state, the telescopic airbag 4 has a long, narrow cross-sectional shape. When the leg support component 3 is extended, the telescopic airbag 4 inflates, its long, narrow cross-section distributed along the extension direction of the leg support component 3, providing uniform support. The long, narrow cross-section allows the telescopic airbag 4 to better fit the seating area 1 and the leg support component 3, increasing the support area, distributing force evenly, and improving the comfort and stability of the user's leg support.

[0076] In this embodiment, the leg support assembly 3 includes a leg support 301 with one end hinged to the seating part 1 via the main elastic pivot 2, a secondary elastic pivot 302 installed at the other end of the leg support 301, and a foot support 303 hinged to the leg support 301 via the secondary elastic pivot 302.

[0077] The structure of the secondary elastic shaft 302 is similar to that of the primary elastic shaft 2, except that the rotation angle range is slightly different. Specifically:

[0078] (1) When in the retracted state, both the main elastic shaft 2 and the secondary elastic shaft 302 are at the minimum value of the rotation angle range, the seating part 1 and the leg support part 301 are at an obtuse angle (e.g., 100° or 120°) or a right angle (so as to reserve space inside the leg support part 301 to place the foot support part 303), and the foot support part 303 and the leg support part 301 are at an acute angle (e.g., 45° or 60°) and retracted upwards;

[0079] (2) When in the extended state, the footrest 303, leg rest 301, and seating part 1 are basically in a straight state.

[0080] Furthermore, the aforementioned angle limiting effect can be achieved by designing the hinge with differentiated rotation angles. How to limit the hinge's rotation angle is a matter of existing technology (the most common solution is to design protrusions and grooves on the hinge's core or leaf blades. When the hinge rotates to a specific angle, the protrusion will lock against the end wall of the groove or another protrusion, thus preventing further rotation). There are readily available products on the market, and this is not the focus of this embodiment, so it will not be elaborated upon.

[0081] In this embodiment, the airbag-type telescopic recliner also includes:

[0082] Backrest assembly 6, which is hinged to the rear end of the seating part 1;

[0083] Backrest link 7, one end of which is hinged to the backrest assembly 6;

[0084] A direct-drive linkage mechanism 8, wherein the drive end of the direct-drive linkage mechanism 8 is hinged to the other end of the backrest linkage 7;

[0085] Specifically, when the direct-drive mechanism 8 drives the backrest link 7 forward, the backrest assembly 6 rotates downward to a reclining position; when the direct-drive mechanism 8 drives the backrest link 7 backward, the backrest assembly 6 rotates upward to an upright sitting position. The direct-drive mechanism 8 directly controls the angle change of the backrest assembly 6, resulting in a simple and direct structure, reducing intermediate transmission components, improving adjustment efficiency and reliability, and facilitating quick switching between sitting and reclining positions.

[0086] After the drive stops, the linkage direct drive mechanism 8 can stabilize the backrest assembly 6 at the desired angle based on its inherent technical characteristics. Specifically, if the linkage direct drive mechanism 8 uses an electric push rod (such as a motor-driven lead screw mechanism), its internal lead screw and nut transmission system has self-locking properties, which can effectively prevent the backrest assembly 6 from moving in the opposite direction under load. If a cylinder or hydraulic cylinder is used, the position can be locked by maintaining the pressure within the closed circuit. These holding mechanisms and angle fixing methods are all existing mature technologies in the field. This utility model directly applies them to ensure the stability of the backrest angle after adjustment, ensuring safe and comfortable use.

[0087] In this embodiment, the seating section 1 is provided with telescopic armrests 9 on both sides with adjustable length; the telescopic armrests 9 include fixed armrests 901 fixed to the seating section 1 and sliding armrests 902 slidably connected to the fixed armrests 901.

[0088] Users can adjust the armrest length by sliding the 902 armrest to accommodate different body types or postures. The adjustable armrest length enhances the adaptability and personalized comfort of the seating, meeting the needs of different users and improving the user experience.

[0089] Optionally, at least one of the fixed armrests 901 is equipped with a control panel 10, which is electrically connected to the linkage direct drive mechanism 8 and / or the inflation / deflation system 5. The control panel 10 is mounted on the fixed armrest 901, and the user sends commands through the control panel 10. The control panel 10 is electrically connected to the linkage direct drive mechanism 8 and the inflation / deflation system 5, thereby achieving electric control of the angle of the backrest assembly 6 and the extension / retraction of the leg support assembly 3.

[0090] Furthermore, the backrest assembly 6 includes a back support plate 601 hinged to the seating portion 1, a head support plate 602 spaced in front of the back support plate 601, and a pivot 603 rotatably connecting the back support plate 601 and the head support plate 602. The head support plate 602 has a folded state where it rotates to fit against the back support plate 601, and a flat state where it rotates to be flush with the back support plate 601. When the user leans against it, the head support plate 602 adapts to the back curve via the pivot 603, providing elastic support. The head support plate 602 design increases the fit and comfort of the backrest, effectively relieving back pressure, adapting to different sitting postures, and enhancing comfort during extended use.

[0091] In this embodiment, the airbag-type telescopic recliner also includes:

[0092] Seat base 11, the seating part 1 is mounted on the top of the seat base 11, and the front end of the seating part 1 protrudes forward relative to the seat base 11;

[0093] Several casters 12 are installed at the bottom of the seat base 11.

[0094] The front end of the seating section 1 protrudes forward relative to the seat base 11, thereby providing installation space for the leg support component 3. The seat base 11 provides stable support, and the protruding front end design optimizes the spatial layout, ensuring smooth extension and retraction of the leg support component 3; the casters 12 make the seat flexible to move and easy to adjust its position, improving practicality and convenience.

[0095] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. An air-cushioned telescopic recliner, characterized in that, include: Riding section (1); The main elastic pivot (2) is installed at the front end of the seating part (1); Leg support assembly (3), which is hinged to the seating part (1) via the main elastic pivot (2); A telescopic airbag (4) is installed below both the seating part (1) and the leg support assembly (3); An inflation / deflation system (5) is connected to the telescopic airbag (4) and is used to inflate and deflate the telescopic airbag (4). The leg support assembly (3) has a retracted state in which it rotates inward under the elastic pre-tightening force of the main elastic shaft (2); and an extended state in which it rotates outward under the expansion force of the telescopic airbag (4).

2. The air-cushioned telescopic recliner according to claim 1, characterized in that, The main elastic pivot (2) is a torsion spring hinge.

3. The air-cushioned telescopic recliner according to claim 1, characterized in that, The main elastic rotating shaft (2) includes: The seating section (1) and the leg support assembly (3) are hinged together by the hinge; A tension spring, one end of which is fixed to the bottom of the seating part (1) and the other end of which is fixed to the bottom of the leg support assembly (3).

4. The air-cushioned telescopic recliner according to claim 1, characterized in that, When the leg support assembly (3) is in the extended state, the cross-sectional shape of the telescopic airbag (4) is elongated.

5. The air-cushioned telescopic recliner according to claim 1, characterized in that, The leg support assembly (3) includes a leg support (301) with one end hinged to the seating part (1) via the main elastic pivot (2), a secondary elastic pivot (302) mounted on the other end of the leg support (301), and a foot support (303) hinged to the leg support (301) via the secondary elastic pivot (302).

6. The air-cushioned telescopic recliner according to claim 1, characterized in that, Also includes: Backrest assembly (6), which is hinged to the rear end of the seating part (1); Backrest link (7), one end of which is hinged to the backrest assembly (6); The direct drive mechanism (8) is a linkage, the drive end of which is hinged to the other end of the backrest linkage (7); in, When the direct drive mechanism (8) drives the backrest link (7) to move forward, the backrest assembly (6) rotates downward to a reclining position; when the direct drive mechanism (8) drives the backrest link (7) to move backward, the backrest assembly (6) rotates upward to an upright position.

7. The air-cushioned telescopic recliner according to claim 6, characterized in that, The seating section (1) is provided with telescopic armrests (9) of adjustable length on both sides. The telescopic armrest (9) includes a fixed armrest (901) fixed to the seating part (1) and a sliding armrest (902) slidably connected to the fixed armrest (901).

8. The air-cushioned telescopic recliner according to claim 7, characterized in that, At least one of the fixed handrails (901) is equipped with a control panel (10), which is electrically connected to the linkage direct drive mechanism (8) and / or the inflation / deflation system (5).

9. The air-cushioned telescopic recliner according to claim 6, characterized in that, The backrest assembly (6) includes a back support plate (601) hinged to the seating part (1), a head support plate (602) spaced in front of the back support plate (601), and a pivot (603) rotatably connecting the back support plate (601) and the head support plate (602); wherein the head support plate (602) has a folded state that rotates to fit against the back support plate (601), and a flat state that rotates to be flush with the back support plate (601).

10. The air-cushioned telescopic recliner according to claim 1, characterized in that, Also includes: Seat base (11), the seating part (1) is mounted on the top of the seat base (11), and the front end of the seating part (1) protrudes forward relative to the seat base (11); Several casters (12) are installed at the bottom of the seat base (11).

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