Backrest and headrest adjustable mechanism of universal bed
By designing a universal bed backrest headrest adjustable mechanism including support beam, motor and adjustment frame, the problem of fixing the traditional bed backrest angle is solved, and arbitrary adjustment and effective support of the back angle of the bed is achieved, improving the comfort of use and reducing the risk of cervical spondylosis.
Patent Information
- Application Number
- CN202421836329.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The angle of the traditional bed backrest is fixed and cannot be adjusted, resulting in the waist, shoulders and neck that cannot be effectively supported, and the comfort level is poor, and the pillow is prone to tilt and slide off, so it is impossible to maintain the correct and comfortable posture.
A universal bed back headrest adjustable mechanism is designed, including a support beam, a motor and an adjustment frame. The headrest frame connected to the adjustment frame and the waist frame are combined with the cross beam assembly driven by the motor, so as to adjust the angle of the headrest frame and the waist frame.
Arbitrary adjustment of the back angle of the bed is achieved, ensuring the comfort of use under different postures, avoiding the pillow tilting and sliding, providing effective support for the back and neck, and reducing the probability of cervical spondylosis.
Smart Images
Figure CN222853501U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of furniture, in particular to an adjustable backrest and headrest mechanism for a universal bed. Background Art
[0002] With the development of economy and the improvement of technological level, users have higher and higher requirements on products, especially the requirements for product comfort. Based on the usage data of bed backrests and users' pain points, it is found that users have a great demand for adjustable bed back angles.
[0003] In the traditional sense, the main part of the bed backrest is fixed, and the comfort of the backrest is mainly increased by sponge filling. When the user is reading, using the mobile phone, or watching TV in a sitting or lying state, the backrest angle is fixed and cannot be adjusted. The waist, shoulders and neck are not effectively supported, and the comfort is not good. For the comfort of the body, pillows are often used as backrests. Since the pillows are small, they are prone to tilting and sliding during use, and cannot ensure that the human body maintains a correct and comfortable posture.
[0004] Application No. 201120347940X discloses a hospital bed backrest device, which includes a bottom bracket frame, a backrest frame, a flip mechanism capable of flipping the backrest frame upward, a backrest board and a pillow, the lower ends of the straight beams on both sides of the backrest frame are rotatably mounted on the two sides of the bottom bracket frame, the backrest board is mounted on the backrest frame, the pillow is placed on the top crossbeam of the backrest frame, the flip mechanism is arranged between the bottom bracket frame and the backrest frame, the straight beams on both sides of the backrest frame are also provided with armrest mechanisms, and the two sides of the backrest board are also provided with limit strips. Although the technical solution disclosed in the patent realizes the support of the pillow, it still has the following disadvantages: 1. The inclination angle of the backrest is unstable, and the inclination angle of the backrest may change during use; 2. The pillow is not fixed in the technical solution, and the pillow is still easy to tilt and slide, which cannot keep the user in a comfortable posture for a long time; 3. The backrest board in the technical solution cannot be tilted at any angle, which makes it impossible for the user to adjust the backrest board to the angle he wants, causing discomfort to the user.
[0005] Therefore, a universal bed backrest headrest adjustable mechanism is proposed to solve the current shortcomings. Utility Model Content
[0006] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology and provide an adjustable mechanism for the backrest and headrest of a universal bed.
[0007] In order to solve the above technical problems, the technical solution provided by the utility model is an adjustable mechanism for the backrest and headrest of a universal bed: comprising a support beam, a motor and an adjustment frame;
[0008] The adjusting frame is symmetrically arranged at both ends of the supporting beam, and the adjusting frame comprises a fixing seat, an adjusting fixing plate, a headrest frame and a lumbar support frame. The fixing seat is fixedly connected to the supporting beam, and the adjusting fixing plate is fixedly connected to the other end of the fixing seat. A linkage rod 1 is provided on the rear side of the middle of the adjusting fixing plate, and a connecting rod 1 and a connecting rod 2 are rotatably connected to the adjusting fixing plate and the linkage rod 1 respectively. A linkage rod 2 is rotatably provided at the top of the adjusting fixing plate, and a connecting rod 1 is rotatably provided at the front end of the headrest frame with a connecting rod 1 rotatably connected to the linkage rod 2 and the linkage rod 1. A connecting rod 2 connected to the linkage rod 2 is provided in the middle of the headrest frame. An adjusting rod is rotatably connected at the lower part of the connecting rod. A linkage crossbeam is connected between the adjusting rods, and the bottom of the motor is rotatably connected to the middle of the supporting beam, and a crossbeam assembly is installed on the motor, and the beam assembly is fixedly connected to the linkage crossbeam.
[0009] As an improvement, the fixing seat is used to be fixedly connected to the bed body, and the rear end of the fixing seat is fixedly connected to the support beam.
[0010] As an improvement, one end of the connecting rod is rotatably connected to the upper end of the lumbar support frame, and the other end is rotatably connected to the front side of the middle part of the adjustment fixing plate.
[0011] As an improvement, the connecting rod 2 is in a V-shaped structure with its opening facing upward, and one end of the connecting rod 2 is rotatably connected to the middle part of the lumbar support frame.
[0012] As an improvement, the connecting rod 1 is an overall "7"-shaped structure, the lower part of the connecting rod 1 is rotatably connected to the linkage rod 2, and the bottom end of the connecting rod 1 is rotatably connected to the linkage rod 1.
[0013] As an improvement, the linkage rod 1 and the linkage rod 2 are arranged in parallel.
[0014] As an improvement, a top of the connecting rod is provided with a supporting surface that cooperates with the headrest frame.
[0015] As an improvement, the connecting rod 2 is arc-shaped, and the connecting rod 2 is rotatably connected to the other end of the linkage rod 2.
[0016] As an improvement, the connection between the adjusting rod and the connecting rod 1 is located between the linkage rod 1 and the linkage rod 2.
[0017] As an improvement, the crossbeam assembly connected to the motor can drive the linkage crossbeam to move back and forth along its height direction.
[0018] The advantages of the utility model compared with the prior art are:
[0019] 1. The headrest frame and lumbar support frame connected by the adjustment frame cooperate with the crossbeam assembly driven by the motor, so that the adjustment frame can move in conjunction with the set path to adjust the angles of the headrest frame and the lumbar support frame. At the same time, the headrest frame and the lumbar support frame can be adjusted to any angle by remotely controlling the forward and reverse rotation and driving time of the motor to ensure the comfort of use in different postures;
[0020] 2. The coordinated setting of the headrest frame and the lumbar support frame and the adjustable angle setting can support the user's back and neck. At the same time, the fixed connection between the headrest frame, the lumbar support frame, the headrest and the backrest can prevent them from tilting or sliding.
[0021] 3. The adjustment mechanism has a simple structure and is easy to operate. It can adjust the angles of the headrest and backrest at the same time, and can adjust the angles of the backrest and headrest when the user is sitting or lying on the bed, so that the user's back, shoulders and neck are effectively supported, reducing the probability of cervical spondylosis. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 The utility model is an exploded view of an adjustable mechanism for a backrest and headrest of a universal bed.
[0023] Figure 2 This is a schematic diagram of the structure of the adjustable mechanism of the backrest and headrest of a universal bed in the utility model in the initial state. Figure 1 .
[0024] Figure 3 This is a schematic diagram of the structure of the adjustable mechanism of the backrest and headrest of a universal bed in the utility model in the initial state. Figure 2 .
[0025] Figure 4 The utility model is a side view of an adjustable mechanism of a backrest and headrest of a universal bed in an initial state.
[0026] Figure 5 This is a schematic diagram of the structure of the adjustable mechanism of the backrest and headrest of a universal bed in the utility model in the adjustment state Figure 1 .
[0027] Figure 6 yes Figure 5 A partial enlarged view of point A in the middle.
[0028] Figure 7 This is a schematic diagram of the structure of the adjustable mechanism of the backrest and headrest of a universal bed in the utility model in the adjustment state Figure 2 .
[0029] Figure 8 The utility model is a side view of an adjustable mechanism of a backrest and headrest of a universal bed in an adjusted state.
[0030] As shown in the figure: 1. Support beam, 2. Motor, 3. Adjustment frame, 4. Fixed seat, 5. Adjustment fixing plate, 6. Headrest frame, 7. Lumbar support frame, 8. Linkage rod 1, 9. Connecting rod 1, 10. Connecting rod 2, 11. Linkage rod 2, 12. Connecting rod 1, 13. Connecting rod 2, 14. Adjustment rod, 15. Linkage beam, 16. Beam assembly, 17. Support surface. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical solution and advantages of the utility model embodiments clearer, the technical solution in the utility model embodiments will be clearly and completely described below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are part of the utility model embodiments, not all of the embodiments. Generally, the components of the utility model embodiments described and shown in the drawings here can be arranged and designed in various different configurations.
[0032] In the description of the utility model embodiments, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0033] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0034] In the description of the embodiments of the utility model, "plurality" means at least 2.
[0035] In the description of the utility model embodiments, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.
[0036] Combined with Figure 1-8As shown, a universal bed backrest headrest adjustable mechanism can achieve the adjustable angle of the bed back when the user is sitting or lying on the bed, so that the user's back and shoulders and neck are effectively supported, which can reduce the probability of cervical spondylosis.
[0037] The adjustment mechanism comprises a support beam 1 , a motor 2 and an adjustment frame 3 . The support beam 1 is made of a rectangular steel pipe and is fixedly connected to the adjustment frame 3 .
[0038] The adjustment frame 3 is symmetrically arranged at both ends of the support beam 1, and the adjustment frame 3 includes a fixed seat 4, an adjustment fixing plate 5, a headrest frame 6 and a lumbar support frame 7. During implementation, the fixed seat 4 is used to be fixedly connected to the bed body. Specifically, the fixed seat 4 is fixedly connected to the bed body through bolts, and the fixed seat 4 is fixedly connected to the support beam 1. Specifically, the rear end of the fixed seat 4 is fixedly connected to the support beam 1.
[0039] The adjusting fixing plate 5 is fixedly connected to the other end of the fixing seat 4. In this embodiment, the adjusting fixing plate 5 is arranged to be tilted upward toward the rear end of the fixing seat 4. When implemented, the tilt angle of the adjusting fixing plate 5 is consistent with the tilt angle of the user when sitting or lying down, so as to avoid the protrusion of the adjusting fixing plate 5 during the adjustment process of the adjusting mechanism, thereby improving the comfort of use;
[0040] A linkage rod 18 is provided at the rear side of the middle part of the adjustment fixing plate 5, and the lumbar support frame 7 is fixedly connected to the backrest. The angle and position of the backrest can be adjusted by rotating and moving the lumbar support frame 7; a connecting rod 19 and a connecting rod 2 10 are rotatably connected to the lumbar support frame 7, which are respectively connected to the adjustment fixing plate 5 and the linkage rod 18. By setting the connecting rod 19 and the connecting rod 2 10, an active connection between the lumbar support frame 7 and the adjustment fixing plate 5 can be achieved, and then when the linkage rod 18 is rotated, the angle and position of the lumbar support frame 7 can be adjusted by the linkage between the connecting rod 19 and the connecting rod 2 10.
[0041] Specifically, one end of the connecting rod 1 9 is rotatably connected to the upper end of the lumbar support frame 7, and the other end is rotatably connected to the front side of the middle part of the adjustment fixing plate 5. The connecting rod 2 10 is a V-shaped structure with an opening facing upward, and one end of the connecting rod 2 10 is rotatably connected to the middle part of the lumbar support frame 7.
[0042] In the initial state, the lumbar support frame 7 is arranged in a vertical state, that is, the backrest connected to the lumbar support frame 7 is arranged in a vertical state. At this time, the linkage rod 1 8 is arranged to be tilted downward. When the linkage rod 1 8 is rotated upward, since the connecting rod 2 10 is a V-shaped structure, the bottom of the lumbar support frame 7 can be driven to move upward. At the same time, the linkage of the connecting rod 2 10
[0043] The top of the adjusting fixing plate 5 is rotatably provided with a linkage rod 2 11. Specifically, the linkage rod 1 8 is arranged in parallel with the linkage rod 2 11. The front end of the headrest frame 6 is rotatably provided with a connecting rod 12 rotatably connected with the linkage rod 2 11 and the linkage rod 1 8. When implemented, the headrest frame 6 is fixedly connected with the headrest;
[0044] Specifically, the connecting rod 12 is a "7"-shaped structure as a whole, the lower part of the connecting rod 12 is rotatably connected to the linkage rod 2 11, and the bottom end of the connecting rod 12 is rotatably connected to the linkage rod 1 8.
[0045] Meanwhile, a second connecting rod 13 connected to the second connecting rod 11 is provided in the middle of the headrest frame 6 . Specifically, the second connecting rod 13 is arc-shaped, and the second connecting rod 13 is rotatably connected to the other end of the second connecting rod 11 .
[0046] During implementation, the linkage rod 1 8 and the linkage rod 2 11 are linked to drive the movement of the linkage rod 1 12 and the linkage rod 2 13, thereby adjusting the angle and position of the headrest frame 6;
[0047] In the initial state, the headrest frame 6 is arranged in a horizontal state, that is, the headrest connected to the headrest frame 6 is arranged in a horizontal state. At this time, the lumbar support frame 7 is arranged in a vertical state.
[0048] During implementation, a supporting surface 17 cooperating with the headrest frame 6 is provided on the top of the connecting rod 12. Specifically, in the initial state, the supporting surface 17 on the connecting rod 12 abuts against the headrest frame 6, which not only supports the headrest frame 6, but also plays a limiting role when the adjustment mechanism is adjusted to the initial state.
[0049] The lower part of the connecting rod 12 is rotatably connected with an adjusting rod 14. Specifically, the connection between the adjusting rod 14 and the connecting rod 12 is located between the linkage rod 1 8 and the linkage rod 2 11. During implementation, the movement of the adjusting rod 14 drives the movement of the connecting rod 12, thereby realizing the linkage of the connecting rod 1 9, the connecting rod 2 10, the linkage rod 1 8, the linkage rod 2 11 and the connecting rod 2 13, thereby realizing the adjustment of the angles of the headrest frame 6 and the lumbar support frame 7.
[0050] At the same time, a linkage beam 15 is connected between the adjustment rods 14, and the two ends of the linkage beam 15 are fixedly connected to the corresponding adjustment rods 14 respectively. By moving the adjustment rod 14 up and down, and because the adjustment rod 14 is rotatably connected to the connecting rod 12, the adjustment rod 14 is driven to adjust the angles of the headrest frame 6 and the lumbar support frame 7.
[0051] The bottom of the motor 2 is rotatably connected to the middle of the support beam 1. In this embodiment, the motor 2 is a remote-controlled motor, and the forward and reverse rotation and rotation time of the motor 2 can be controlled by the remote control to adjust the angles of the headrest frame 6 and the lumbar support frame 7.
[0052] A beam assembly 16 is installed on the motor 2. Specifically, the beam assembly 16 is a prior art. The motor 2 drives the components on the beam assembly 16 to achieve linear movement. In this embodiment, the components on the beam assembly 16 can move back and forth along the height direction of the adjustment mechanism.
[0053] The crossbeam assembly 16 is fixedly connected to the linkage crossbeam 15 . The crossbeam assembly 16 connected to the motor 2 can drive the linkage crossbeam 15 to move back and forth along its height direction.
[0054] In specific implementation, by rotating the motor 2, the components on the crossbeam assembly 16 are moved along the height direction of the adjustment mechanism. At the same time, since the motor 2 is rotationally connected to the middle part of the support beam 1, the adjustment rod 14 can be driven.
[0055] In the specific implementation of the utility model, the adjustment mechanism is fixedly connected to the bed body through the fixing seat 4, and the backrest and the headrest are fixedly connected to the waist support frame 7 and the headrest frame 6 respectively;
[0056] When in the initial state, the headrest frame 6 is arranged in a horizontal state, and the lumbar support frame 7 is arranged in a vertical state. At the same time, the supporting surface 17 on the connecting rod 12 is in contact with the headrest frame 6, which can not only support the headrest frame 6, but also play a limiting role when the adjustment mechanism is adjusted to the initial state.
[0057] When adjusting, the rotation of the motor 2 drives the movement of the crossbeam assembly 16, and then drives the linkage crossbeam 15 to move upward, thereby driving the movement of the connecting rod 12 through the adjusting rod 14. Due to the rotational connection between the connecting rod 12 and the headrest frame 6, the linkage rod 2 11, and the linkage rod 1 8, and the rotational connection between the connecting rod 2 13 and the headrest frame 6 and the linkage rod 2 11, under the drive of the connecting rod 12, the linkage rod 2 11, the linkage rod 1 8 and the connecting rod 2 13 are realized, thereby realizing the adjustment of the angle of the headrest frame 6.
[0058] At the same time, due to the rotational connection between the connecting rod 2 10 and the linkage rod 1 8, when the linkage rod 1 8 is rotated, the connecting rod 1 9 and the connecting rod 2 10 can be linked to achieve synchronous adjustment of the angle of the lumbar support frame 7.
[0059] When the components on the crossbeam assembly 16 move to the upper end of the crossbeam assembly 16, the headrest frame 6 is arranged in a vertical state, and the lumbar support frame 7 is arranged obliquely upward, that is, at this time, the headrest is arranged vertically upward, and the backrest is arranged obliquely upward.
[0060] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A universal bed backrest headrest adjustable mechanism, characterized in that: It comprises a support beam (1), a motor (2) and an adjustment frame (3); The adjustment frame (3) is symmetrically arranged at both ends of the support beam (1), and the adjustment frame (3) comprises a fixing seat (4), an adjustment fixing plate (5), a headrest frame (6) and a lumbar support frame (7). The fixing seat (4) is fixedly connected to the support beam (1), and the adjustment fixing plate (5) is fixedly connected to the other end of the fixing seat (4). A linkage rod (8) is provided at the rear side of the middle part of the adjustment fixing plate (5). A connecting rod (9) and a connecting rod (10) which are respectively connected to the adjustment fixing plate (5) and the linkage rod (8) for rotation are rotatably connected to the lumbar support frame (7). The top end of the adjustment fixing plate (5) is rotatably connected to the headrest frame (6). A linkage rod (11) is rotatably provided at the front end of the headrest frame (6) and a linkage rod (12) is rotatably connected to the linkage rod (11) and the linkage rod (8). A linkage rod (13) is connected to the linkage rod (11) in the middle of the headrest frame (6). An adjustment rod (14) is rotatably connected to the lower part of the linkage rod (12). A linkage beam (15) is connected between the adjustment rods (14). The bottom of the motor (2) is rotatably connected to the middle part of the support beam (1). A beam assembly (16) is installed on the motor (2). The beam assembly (16) is fixedly connected to the linkage beam (15).
2. The adjustable headrest mechanism for a universal bed according to claim 1, characterized in that: The fixing seat (4) is used for being fixedly connected to the bed body, and the rear end of the fixing seat (4) is fixedly connected to the support beam (1).
3. The adjustable headrest mechanism for a universal bed according to claim 1, characterized in that: One end of the connecting rod (9) is rotatably connected to the upper end of the waist support frame (7), and the other end is rotatably connected to the front side of the middle part of the adjustment fixing plate (5).
4. The adjustable headrest mechanism for a universal bed according to claim 1, characterized in that: The second connecting rod (10) is in a V-shaped structure with its opening upward, and one end of the second connecting rod (10) is rotatably connected to the middle part of the waist support frame (7).
5. The adjustable headrest mechanism for a universal bed according to claim 1, characterized in that: The connecting rod 1 (12) is in a "7" shape as a whole. The lower part of the connecting rod 1 (12) is rotatably connected to the linkage rod 2 (11), and the bottom end of the connecting rod 1 (12) is rotatably connected to the linkage rod 1 (8).
6. The adjustable headrest mechanism for a universal bed according to claim 5, characterized in that: The linkage rod 1 (8) and the linkage rod 2 (11) are arranged in parallel.
7. The adjustable headrest mechanism for a universal bed according to claim 1, characterized in that: The top of the connecting rod 1 (12) is provided with a supporting surface (17) that cooperates with the headrest frame (6).
8. The adjustable headrest mechanism for a universal bed according to claim 1, characterized in that: The second connecting rod (13) is arc-shaped, and the second connecting rod (13) is rotatably connected to the other end of the second linkage rod (11).
9. The adjustable headrest mechanism for a universal bed according to claim 1, characterized in that: The connection point between the adjusting rod (14) and the connecting rod 1 (12) is located between the linkage rod 1 (8) and the linkage rod 2 (11).
10. The adjustable headrest mechanism for a universal bed according to claim 1, characterized in that: The crossbeam assembly (16) connected to the motor (2) can drive the linkage crossbeam (15) to move back and forth along its height direction.