A leisure chair tray and a leisure chair
Patent Information
- Application Number
- CN202522060763.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-09-25
AI Technical Summary
但是，在工作和生活中，久坐容易使腰部疲劳，若椅子只能前后倾仰，则不能满足缓解腰部疲劳的需求
[0013] The beneficial effects of this utility model are as follows: Through the above design, the backrest tilt angle of this utility model patent can be adjusted. For users of different body sizes, the appropriate backrest tilt angle adjustment can adapt to their body curves. Whether people are tall or short, they can find a comfortable angle that suits them, thereby meeting the need to relieve lower back fatigue, thus improving the versatility and applicability of the product, while also increasing users' favorability and satisfaction with the product, and increasing the product's market competitiveness.
Smart Images
Figure CN224747685U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leisure chair technology, and in particular to a leisure chair tray and a leisure chair. Background Technology
[0002] Most lounge chairs have adjustable seat height and swivel functions, and some even have reclining backrests. However, prolonged sitting can easily lead to lower back fatigue during work and daily life, and if a chair can only recline, it cannot meet the need to alleviate lower back fatigue. Utility Model Content
[0003] Therefore, in view of the above problems, this utility model proposes a leisure chair tray with an adjustable backrest tilt angle and a leisure chair using the tray.
[0004] This utility model is achieved through the following technical solution: A lounge chair tray includes a tray body and a backrest connecting frame, the backrest connecting frame being rotatably disposed within the tray body. The backrest connecting frame includes a transverse connecting part, a longitudinal supporting part, and a bent hinge part connecting the two. The transverse connecting part is used to connect the chair back, and the bent hinge part is rotatably connected to the tray body via a hinge shaft. A rotating support adjustment mechanism is disposed inside the pallet body. The rotating support adjustment mechanism includes a linearly movable push assembly and a drive assembly that drives the push assembly. The push assembly abuts against the longitudinal support portion of the chair back connecting frame, and the drive assembly is configured to drive the push assembly to move linearly, thereby causing the chair back connecting frame to rotate around the hinge axis, thus adjusting the rotation angle of the chair back connecting frame.
[0005] As a further improvement of this utility model, the jacking assembly includes a support base, a mounting bracket, and an elastic element. The support base is used to abut against the lower end of the longitudinal support portion. One end of the mounting bracket is connected to the support base, and the other end is used to connect to the drive assembly. The mounting bracket is configured as a telescopic structure. The elastic element is disposed on the mounting bracket, and the elastic element is configured to have a pre-pressure in its natural state that drives the mounting bracket to maintain an elongation trend.
[0006] As a further improvement of this utility model, the mounting bracket includes a fixed rod and a telescopic rod, wherein the fixed rod is configured to allow the telescopic rod to move axially thereto; A compression plate is provided on the telescopic rod, and the compression plate is used to act on the elastic element when the telescopic rod is displaced along the axial direction of the fixed rod.
[0007] As a further improvement to this utility model, The drive assembly includes an adjusting rod, one end of which is inserted into the tray body. The axial direction of the mounting bracket is perpendicular to the axial direction of the adjusting rod. The adjusting rod can rotate around its own axis, and the end of the adjusting rod is provided with a toothed cone. A bevel gear is rotatably mounted inside the tray body. The bevel gear is coaxially mounted with the mounting frame and meshes with the bevel gear. A screw is fixedly connected to the middle of the bevel gear. The fixing rod is configured to restrict the rotation of the telescopic rod; The telescopic rod has a threaded hole along its axial direction. The telescopic rod and the screw are connected by a threaded transmission to drive the telescopic rod to move axially along the fixed rod when the bevel gear is rotated, thereby adjusting the compression of the elastic element.
[0008] As a further improvement of this utility model, the cross-section of the telescopic rod is rectangular, and the fixed rod is provided with a rectangular groove that matches the cross-sectional shape of the telescopic rod, which is used to restrict the rotation of the telescopic rod and allow its axial sliding.
[0009] As a further improvement of this utility model, the lower end of the longitudinal support is provided with a top shaft, the top shaft abuts against the support seat, and the support seat is provided with a movable groove on the side near the top shaft that allows the top shaft to slide.
[0010] As a further improvement of this utility model, the elastic element is a compression spring, which is sleeved on the mounting bracket, and the two ends of the compression spring abut against the support base and the compression plate, respectively.
[0011] As a further improvement of this utility model, the other end of the adjusting rod is provided with a rocker arm for the operator to use.
[0012] Based on the same concept, this utility model patent also discloses a lounge chair, including the lounge chair tray as described above, as well as a seat and a backrest. The lounge chair tray is disposed under the seat, and the backrest is disposed behind the lounge chair tray.
[0013] The beneficial effects of this utility model are as follows: Through the above design, the backrest tilt angle of this utility model patent can be adjusted. For users of different body sizes, the appropriate backrest tilt angle adjustment can adapt to their body curves. Whether people are tall or short, they can find a comfortable angle that suits them, thereby meeting the need to relieve lower back fatigue, thus improving the versatility and applicability of the product, while also increasing users' favorability and satisfaction with the product, and increasing the product's market competitiveness. Attached Figure Description
[0014] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of this utility model, wherein: Figure 1 This is a schematic diagram of the structure of the lounge chair in the embodiment of this utility model patent; Figure 2 This is a schematic diagram of the internal structure of the tray body in an embodiment of this utility model patent; Figure 3 This is a schematic diagram of the rotating support adjustment mechanism in an embodiment of this utility model patent. Figure 4 This is a schematic diagram of the side structure of the tray body in an embodiment of this utility model patent.
[0015] Numbering in the diagram: 1. Seat plate; 2. Backrest; 3. Tray body; 4. Backrest connecting frame; 4. Lateral connecting part; 401. Longitudinal support part; 402. Bending hinge part; 403. Hinge shaft; 5. Support base; 6. Mounting bracket; 7. Fixed rod; 701. Telescopic rod; 702. Elastic element; 8. Compression plate; 9. Adjusting rod; 10. Bevel gear; 11. Screw; 13. Rocker arm; 14. Abutment shaft; 15. Movable groove; 16. Detailed Implementation
[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.
[0017] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.
[0018] refer to Figures 1 to 4 The present invention discloses the following embodiments: A lounge chair includes a seat 1 with a chair tray underneath. A backrest 2 is connected to the rear of the chair tray. Specifically, the chair tray includes a tray body 3, which has a box-like structure. A backrest connecting frame 4 is rotatably mounted inside the tray body 3. The backrest connecting frame 4 includes a transverse connecting part 401, a longitudinal supporting part 402, and a bent hinge part 403 connecting the two. The transverse connecting part 401 extends longitudinally through the tray body 3 and is connected to the backrest 2 via fasteners. The bent hinge part 403 is rotatably connected to the tray body 3 via a hinge shaft 5. Of course, to prevent the transverse connecting part 401 from colliding with the tray body 3... To prevent motion interference, the tray body 3 also has an opening for the movement of the transverse connecting part 401. As shown in the figure, the chair back connecting frame 4 is generally L-shaped. When a force is applied to the longitudinal support part 402, it can drive the chair back connecting frame 4 to rotate around the hinge point of the bent hinge part 403, thereby driving the chair back 2 to rotate and adjust the tilt angle of the chair back 2 to meet the user's needs. Correspondingly, when a person leans against the chair back 2, a downward force is applied to the transverse connecting part 401, thereby causing the chair back connecting frame 4 to rotate in the opposite direction around the hinge axis 5. Therefore, during use, it is necessary to limit the chair back 2 from driving the transverse connecting part 401 to rotate. The mechanism moves towards the connecting part 401. In this embodiment, a rotation support adjustment mechanism is also provided. The rotation support adjustment mechanism is located inside the tray body 3. The rotation support adjustment mechanism includes a linearly movable pushing assembly and a drive assembly for driving the pushing assembly. The pushing assembly abuts against the longitudinal support part 402 of the chair back connecting frame 4. The drive assembly is configured to drive the pushing assembly to move linearly, thereby causing the chair back connecting frame 4 to rotate around the hinge axis 5, thus adjusting the rotation angle of the chair back connecting frame 4. In this embodiment, the pushing assembly first acts on the longitudinal support part 402, applying a pushing force to the longitudinal support part 402, thereby... When a person leans against the chair back 2, its reverse rotation is restricted, thereby achieving stable support for the tilt angle of the chair back 2. In this embodiment, since the push assembly can move linearly, the rotation angle of the chair back connecting frame 4 can be controlled by adjusting the linear movement distance of the push assembly. Specifically: when the push assembly applies a pushing force to the longitudinal support 402, the chair back connecting frame 4 rotates around the hinge axis 5, thereby lifting the chair back 2 upward and reducing the tilt angle of the chair back 2; when the drive assembly drives the push assembly to move away from the longitudinal support 402, under the pressure of the person on the chair back 2, the chair back connecting frame 4 will rotate in the opposite direction around the hinge axis 5, and the tilt angle of the chair back 2 will increase.Through the above design, the tilt angle of the chair back 2 can be adjusted. For users of different heights, the appropriate tilt angle adjustment can adapt to their body curves. Whether tall or short, everyone can find a comfortable angle, thereby improving the product's versatility and applicability. This also enhances user satisfaction and positive perception of the product, increasing its market competitiveness.
[0019] As shown in the figure, in this embodiment, the push-up assembly includes a support base 6, a mounting bracket 7, and an elastic element 8. The support base 6 is used to abut against the lower end of the longitudinal support portion 402. One end of the mounting bracket 7 is connected to the support base 6, and the other end is used to connect to the drive assembly. The mounting bracket 7 is configured as a telescopic structure. The elastic element 8 is disposed on the mounting bracket 7, and the elastic element 8 is configured to have a pre-pressure that drives the mounting bracket 7 to maintain an elongated tendency in its natural state. By controlling the extension and retraction of the mounting bracket 7, the chair back connecting bracket 4 can be rotated. Specifically, when the mounting bracket 7 is in the extended state, the pre-pressure of the elastic element 8 will push the support base 6 tightly against the longitudinal support portion 402. At this time, the tilt angle of the chair back 2 remains stable and is not easily changed by human body pressure. When the mounting frame 7 is shortened, the elastic element 8 is compressed (because the support seat 6 needs to always be in contact with the longitudinal support part 402, if the mounting frame 7 is shortened, the elastic element 8 will be compressed accordingly). The contact force of the support seat 6 on the longitudinal support part 402 increases, making it more difficult for the chair back 2 to rotate in the opposite direction under human body pressure, and the tilt angle is reduced. In addition, the setting of the elastic element 8 can also play a buffering role during use. When the human body leans against the chair with a small change, the deformation of the elastic element 8 can absorb part of the impact force, avoid abrupt adjustment of the chair back 2 angle, and improve the stability and safety during use.
[0020] The mounting bracket 7 includes a fixed rod 701 and a telescopic rod 702. The fixed rod 701 is configured to allow the telescopic rod 702 to move axially. A compression plate 9 is fixedly provided on the telescopic rod 702. The compression plate 9 is used to act on the elastic member 8 when the telescopic rod 702 moves axially along the fixed rod 701.
[0021] The drive assembly includes an adjusting rod 10, one end of which passes through the tray body 3. The axial direction of the mounting bracket 7 is perpendicular to the axial direction of the adjusting rod 10. The adjusting rod 10 can rotate around its own axis, and its end is provided with a toothed bevel 11. A bevel gear 12 is rotatably disposed inside the tray body 3. The bevel gear 12 is coaxially disposed with the mounting bracket 7 and meshes with the toothed bevel 11. A screw 13 is fixedly connected to the middle of the bevel gear 12. The fixing rod 701 is configured as follows: The telescopic rod 702 is restricted from rotating; the telescopic rod 702 has a threaded hole along its axial direction, and the telescopic rod 702 is connected to the screw 13 through a threaded transmission to drive the telescopic rod 702 to move axially along the fixed rod 701 when the bevel gear 12 is rotated, thereby adjusting the compression of the elastic element 8; the other end of the adjusting rod 10 is provided with a rocker arm 14 for the operator to use, so that the operator can control the rotation of the adjusting rod 10 by turning the rocker arm 14, thereby driving the toothed bevel 11, bevel gear 12 and screw 13 to rotate in sequence.
[0022] When the user needs to adjust the angle of the chair back 2, simply rotate the adjusting rod 10. The toothed bevel 11 at the end of the adjusting rod 10 will drive the bevel gear 12, which meshes with it, to rotate synchronously. The screw 13 in the middle of the bevel gear 12 will then rotate. Since the telescopic rod 702 and the screw 13 are connected by a threaded transmission, and the fixed rod 701 restricts the rotation of the telescopic rod 702, the rotation of the screw 13 will be converted into a linear displacement of the telescopic rod 702 along the axial direction of the fixed rod 701. When the telescopic rod 702 retracts into the fixed rod 701, the pressure of the compression plate 9 on the elastic element 8 increases, the elastic element 8 is further compressed, and the contact force of the support seat 6 on the longitudinal support part 402 is strengthened, thus reducing the tilt angle of the chair back 2. When the telescopic rod 702 extends outward along the fixed rod 701, the pressure of the compression plate 9 on the elastic element 8... As the pressure decreases, the elastic element 8 gradually recovers its deformation, and the resistance of the support seat 6 to the longitudinal support part 402 weakens accordingly. Under the pressure of the human body, the backrest 2 can appropriately increase its tilt angle, thereby realizing convenient adjustment of the angle of the backrest 2 of the lounge chair. This design, which converts rotational motion into linear motion through the linkage between the adjusting rod 10, the toothed bevel 11, the bevel gear 12, the screw 13 and the telescopic rod 702, allows users to easily and accurately control the compression of the elastic element 8, thereby flexibly adjusting the tilt state of the backrest 2 to meet the sitting posture needs of different users in different scenarios.
[0023] The telescopic rod 702 has a rectangular cross-section, and the fixed rod 701 has a rectangular groove that matches the cross-sectional shape of the telescopic rod 702. This groove restricts the rotation of the telescopic rod 702 and allows it to slide axially. This rectangular mating structure not only effectively prevents the telescopic rod 702 from rotating circumferentially during sliding and ensures the stability of the threaded transmission between the screw 13 and the telescopic rod 702, but also reduces unnecessary redundant space and lowers material costs because the connection structure between the inner wall of the rectangular groove and the side of the telescopic rod 702 is simpler and more reasonable.
[0024] During use, it was found that if the longitudinal support 402 is not at a fixed point when it abuts against the support seat 6 during rotation, the abutment force of the support seat 6 against the longitudinal support 402 may be unevenly distributed, which may cause local wear after long-term use and affect the stability and service life of the adjustment structure. The lower end of the longitudinal support 402 is provided with an abutment shaft 15, which abuts against the support seat 6. The support seat 6 is provided with a movable groove 16 on the side near the abutment shaft 15, which allows the abutment shaft 15 to slide. The movable groove 16 has an arc-shaped cross section, and its curvature is adapted to the rotation trajectory of the longitudinal support 402. When the longitudinal support 402 rotates around its hinge axis 5, the abutment shaft 15 can slide smoothly along the inner wall of the movable groove 16, so that the abutment position is always kept on the preset arc trajectory, ensuring that the support seat 6 and the longitudinal support 402 always maintain an abutment state.
[0025] The elastic element 8 is a compression spring, which is sleeved on the mounting bracket 7. Both ends of the compression spring abut against the support seat 6 and the compression plate 9, respectively. Firstly, the compression spring is a standard component readily available on the market, with low procurement costs and easy replacement, eliminating the need for custom-made elastic elements. Secondly, the compression spring can produce stable elastic deformation under axial pressure, and its elastic coefficient can be precisely selected according to actual needs, ensuring continuous and uniform support force for the chair back 2 under different compression levels. Furthermore, the design of sleeved on the mounting bracket 7 provides good guidance for the spring, preventing lateral displacement or twisting during compression or recovery, thus ensuring the working stability and service life of the elastic element 8. Simultaneously, the connection method where both ends of the compression spring abut against the support seat 6 and the compression plate 9 makes force transmission more direct and efficient, reducing energy loss and further improving the sensitivity and smoothness of the chair back 2 angle adjustment.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A lounge chair tray, comprising a tray body (3), characterized in that... It also includes: The chair back connecting frame (4) is rotatably disposed inside the tray body (3). The chair back connecting frame (4) includes a transverse connecting part (401), a longitudinal supporting part (402), and a bent hinge part (403) connecting the two. The transverse connecting part (401) is used to connect the chair back (2), and the bent hinge part (403) is rotatably connected to the tray body (3) through a hinge shaft (5). A rotating support adjustment mechanism is provided inside the tray body (3). The rotating support adjustment mechanism includes a linearly movable push assembly and a drive assembly for driving the push assembly. The push assembly abuts against the longitudinal support (402) of the backrest connecting frame (4), and the drive assembly is configured to drive the push assembly to move linearly, thereby causing the backrest connecting frame (4) to rotate around the hinge axis (5) and thus adjusting the rotation angle of the backrest connecting frame (4).
2. The lounge chair tray according to claim 1, characterized in that: The jacking assembly includes a support base (6), a mounting bracket (7), and an elastic element (8). The support base (6) is used to abut against the lower end of the longitudinal support (402). One end of the mounting bracket (7) is connected to the support base (6), and the other end is used to connect to the drive assembly. The mounting bracket (7) is configured as a telescopic structure. The elastic element (8) is provided on the mounting bracket (7), and the elastic element (8) is configured to have a pre-pressure in its natural state that drives the mounting bracket (7) to maintain an elongation trend.
3. A lounge chair tray according to claim 2, characterized in that: The mounting bracket (7) includes a fixed rod (701) and a telescopic rod (702), the fixed rod (701) being configured to allow the telescopic rod (702) to move axially therein; A compression plate (9) is provided on the telescopic rod (702), and the compression plate (9) is used to act on the elastic element (8) when the telescopic rod (702) is axially displaced along the fixed rod (701).
4. A lounge chair tray according to claim 3, characterized in that: The drive assembly includes an adjusting rod (10), one end of which is inserted into the tray body (3). The axial direction of the mounting bracket (7) is perpendicular to the axial direction of the adjusting rod (10). The adjusting rod (10) can rotate around its own axis, and the end of the adjusting rod (10) is provided with a toothed cone (11). A bevel gear (12) is rotatably disposed inside the tray body (3). The bevel gear (12) is coaxially disposed with the mounting bracket (7). The bevel gear (12) meshes with the toothed bevel (11). A screw (13) is fixedly connected to the middle of the bevel gear (12). The fixed rod (701) is configured to restrict the rotation of the telescopic rod (702); The telescopic rod (702) has a threaded hole along its axial direction. The telescopic rod (702) and the screw (13) are connected by a threaded transmission to drive the telescopic rod (702) to move axially along the fixed rod (701) when the bevel gear (12) is rotated, thereby adjusting the compression of the elastic element (8).
5. A lounge chair tray according to claim 4, characterized in that: The telescopic rod (702) has a rectangular cross-section, and the fixed rod (701) has a rectangular groove that matches the cross-sectional shape of the telescopic rod (702) to restrict the rotation of the telescopic rod (702) and allow it to slide axially.
6. A lounge chair tray according to claim 5, characterized in that: The lower end of the longitudinal support (402) is provided with a top shaft (15), which abuts against the support base (6). The support base (6) is provided with a movable groove (16) on the side near the top shaft (15) to allow the top shaft (15) to slide.
7. A lounge chair tray according to claim 4, characterized in that: The elastic element (8) is a compression spring, which is sleeved on the mounting bracket (7). The two ends of the compression spring abut against the support base (6) and the compression plate (9), respectively.
8. A lounge chair tray according to claim 4, characterized in that: The other end of the adjusting rod (10) is provided with a rocker arm (14) for the operator to use.
9. A lounge chair, characterized in that: The chair includes a lounge chair tray as described in any one of claims 1-8, and further includes a seat (1) and a backrest (2), wherein the lounge chair tray is disposed under the seat (1) and the backrest (2) is disposed behind the lounge chair tray.