Steel frame structure for a foldable bed
By designing a folding bed steel frame structure suitable for leisure use, the problem of existing massage or physiotherapy beds lacking spinal and leg joint mobility and muscle relaxation is solved. It enables mobility and muscle relaxation of the lumbar spine, hip joints, and knee joints, improving user comfort and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HAOZHONGHAO HEALTH PROD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-24
AI Technical Summary
The existing steel frame structure of massage beds or physiotherapy beds lacks design for joint movement and muscle relaxation in parts of the user's spine, legs and other parts of the body, resulting in insufficient comfort and functionality.
A folding bed steel frame structure for leisure use has been designed, comprising a bed frame and a base. Different parts of the bed frame are rotatably connected and equipped with a drive mechanism and a limiting structure to achieve the effects of lumbar spine, hip joint and knee joint movement and muscle relaxation. The drive mechanism can adjust the user's lying posture to improve comfort.
It enables effective movement and muscle relaxation of the spine and leg joints, improving user comfort and functionality, simplifying the structure and reducing production costs.
Smart Images

Figure CN224539810U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a steel frame structure for a folding bed that can be used for leisure. Background Technology
[0002] Most existing massage beds or physiotherapy beds have a fixed steel frame structure, where users can only lie down on the bed to rest. However, some beds have a flexible steel frame structure. For example, some beds have movable parts of the steel frame that fit with the user's upper body, allowing users to use the massage chair in different positions.
[0003] Currently, the steel frame structure of existing massage beds or physiotherapy beds does not have a design specifically for joint movement and muscle relaxation in areas such as the spine and legs of the user's body.
[0004] Most existing massage or therapy beds have fixed steel frame structures, allowing users to simply lie down and rest. Some beds have customizable frame structures; for example, some frames have movable sections that engage with the user's upper body, allowing for different postures. Currently, existing massage or therapy beds lack designs specifically for joint movement and muscle relaxation in areas like the spine and legs. Utility Model Content
[0005] This invention provides a folding bed frame structure that can be used for leisure, which can assist in the joint movement and muscle relaxation of the spine and legs, thereby improving comfort and functionality.
[0006] This utility model discloses a folding bed steel frame structure for leisure use, comprising a bed frame and a base. The bed frame includes a first part that supports the user's back and head, a second part that supports the user's thighs, a third part that supports the user's calves, and a middle part that supports the user's buttocks. The middle part of the bed frame is fixedly mounted on the base and remains relatively stationary. The first part of the bed frame is rotatably connected to one end of the middle part, and the second part is rotatably connected to the other end of the middle part. The second part and the third part are rotatably connected. A first drive mechanism is provided between the base and the first part for driving the first part to rotate relative to the middle part. A second drive mechanism is provided between the base and the second part for driving the second part to rotate relative to the middle part. A third drive mechanism is provided between the second part and the third part for driving the third part to rotate relative to the second part.
[0007] In the initial state, the first part of the bed frame is at the same level as the middle. The first drive mechanism drives the first part of the bed frame to swing up and down, which can help to move the lumbar joints and relax the core muscles. In addition, in the initial state, the second and third parts of the bed frame are also at the same level as the middle. The second and third drive mechanisms drive the second and third parts of the bed frame to swing up and down, which can help to move the hip and knee joints and relax the related leg muscles. Furthermore, each drive mechanism can also drive each part of the bed frame to maintain a specific rotation position, thereby adjusting the user's lying posture and improving comfort during use.
[0008] Furthermore, when the second part rotates upward relative to the center, the third part rotates downward relative to the second part by its own gravity. The third drive mechanism includes a limiting structure that can limit the angle range of the third part's downward rotation relative to the second part. When the second part rotates upward relative to the center, it can drive the third part to lift upward. Specifically, during the upward swing of the second part driven by the second drive mechanism, one end of the third part is driven upward by the second part, while the other end of the third part remains in a lower position under the action of gravity, so that the second and third parts are in a state of mutual inclination. When the angle between the second and third parts reaches the angle limited by the limiting structure, the third part as a whole is driven to lift by the second part.
[0009] The third drive mechanism using the above scheme can rotate in conjunction with the rotation of the third part when the second part is driven to rotate, which helps to simplify the structure and reduce production costs. In other schemes, the third drive mechanism can also use an actuator such as an electric push rod or a motor connected between the second and third parts of the bed frame to drive the third part of the bed frame to rotate relative to the second part.
[0010] Furthermore, the first part has an internal space for accommodating the first drive mechanism, and the third part has an internal space for accommodating the second drive mechanism, making the structure more compact.
[0011] Furthermore, the first drive mechanism is a horizontal electric push rod, the guide rail part of the horizontal electric push rod is fixed to the middle part of the base or bed frame, and the movable part of the horizontal electric push rod and the first part are connected and cooperated by a connecting rod pivot. The connecting rod extends into the internal space of the first part. The overall structure is compact and improves the reliability of equipment operation.
[0012] Furthermore, the second drive mechanism is a telescopic electric push rod, the two ends of which are respectively pivotally connected to the base and the second part of the bed frame, which can effectively drive the second part to rotate relative to the center and move in conjunction with the third part.
[0013] Furthermore, the third part has an internal space containing a counterweight to increase its overall weight and enhance its downward natural rotation effect.
[0014] Furthermore, the counterweight is a control box, which uses its own weight as a counterweight, eliminating the need for additional counterweight components and making the overall structure more compact and reasonable. The control box is used to configure the power supply and control module connected to the first and second drive mechanisms.
[0015] Furthermore, the limiting structure is a limiting block set at one end of the corresponding part of the second and third parts of the bed frame, which is simple in construction. Attached Figure Description
[0016] Figure 1 This is a structural diagram of the initial state of an embodiment of the present utility model; Figure 2 This is a structural diagram showing the usage state of an embodiment of the present utility model; Figure 3 This is a side view of the usage state of an embodiment of the present utility model; Figure 4 This is an exploded view of the structure of an embodiment of the present utility model; Figure 5 This is an exploded view of the bed frame structure according to an embodiment of the present invention. Detailed Implementation
[0017] This utility model can be used in embodiments of folding bed steel frame structures for leisure, such as... Figure 1-5As shown, the bed includes a bed frame 1 and a base 2. The bed frame 1 includes a first part 11 that supports the user's back and head, a second part 12 that supports the user's thighs, a third part 13 that supports the user's calves, and a middle part 14 that supports the user's buttocks. The middle part 14 of the bed frame 1 is fixedly mounted on the base 2 and remains relatively stationary. The first part 11 is rotatably connected to one end of the middle part 14, and the second part 12 is rotatably connected to the other end of the middle part 14. The second part 12 and the third part 13 are rotatably connected. A first drive mechanism 3 is provided between the base 2 and the first part 11 for driving the first part 11 to rotate relative to the middle part 14, and a second drive mechanism 4 is provided between the base 2 and the second part 12 for driving the second part 12 to rotate relative to the middle part 14. When the second part 12 rotates upward relative to the middle part 14, it rotates downward relative to the second part 12 by its own gravity. A limiting structure is provided between the second part 12 and the third part 13 to limit the angle range of the downward rotation of the third part 13 relative to the second part 12. When the second part 12 rotates upward relative to the middle part 14, it can drive the third part 13 to rise upward. Specifically, during the upward swing of the second part 12 driven by the second drive mechanism 4, one end of the third part 13 (the end connected to the second part 12) is driven upward by the second part 12, and the other end of the third part 13 is kept in a lower position under the action of gravity, so that the second and third parts are in a state of mutual inclination. When the angle between the second part 12 and the third part reaches the angle limited by the limiting structure, the third part 13 as a whole is driven upward by the second part 12.
[0018] In the initial state, such as Figure 1 As shown, the first part 11 of the bed frame 1 is at a horizontal position flush with the middle part 14. When the first drive mechanism 3 is working, it can drive the first part 11 of the bed frame 1 to swing up and down, which can help to achieve the effect of lumbar spine joint movement and core muscle relaxation; in addition, in the initial state, as Figure 1 As shown, the second part 12 and the third part 13 of the bed frame 1 are both at the same horizontal position as the middle part 14. When the second drive mechanism 4 is working, it can drive the second part 12 of the bed frame 1 and the third part 13 to swing up and down, which can help to achieve the effect of relaxing the hip and knee joints and related leg muscles. In addition, the first and second drive mechanisms can also drive each part of the bed frame 1 to maintain a specific rotation position, thereby adjusting the user's lying posture and improving the comfort during use.
[0019] In this embodiment, the third drive mechanism can rotate in conjunction with the second part when the second part is driven to rotate, which helps to simplify the structure and reduce production costs. In other solutions, the third drive mechanism can also use an actuator such as an electric push rod or a motor connected between the second and third parts of the bed frame to drive the third part of the bed frame to rotate relative to the second part.
[0020] The first part 11 has an internal space 110 for accommodating the first drive mechanism 3. In the initial state, the first drive mechanism 3 is located in the internal space 110 of the first drive mechanism 3. The third part 13 has an internal space 130 for accommodating the second drive mechanism 4. In the initial state, the second drive mechanism 4 is located in the internal space 130 of the third part 13. The structure is relatively compact.
[0021] like Figure 3 , Figure 4 As shown, the first drive mechanism 3 is a horizontal electric push rod. The guide rail part 31 of the horizontal electric push rod is fixed to the base 2 and the middle part 14 of the bed frame 1. The movable part 32 of the horizontal electric push rod (i.e., the movable seat that moves along the guide rail part 31) and the first part 11 are pivotally connected and cooperated by the connecting rod 33. The connecting rod extends into the internal space of the first part 11. The overall structure is compact and improves the reliability of equipment operation.
[0022] The second drive mechanism 4 is a telescopic electric push rod. The two ends of the telescopic electric push rod are pivotally connected to the base 2 and the second part 12 of the bed frame 1, respectively, which can effectively drive the second part 12 to rotate relative to the middle part 14 and move in conjunction with the third part 13.
[0023] The control box 5 is installed in the internal space 130 of the third part 13 as a counterweight to increase the overall weight of the third part 13 and improve its downward natural rotation effect. By using the weight of the control box 5 itself as a counterweight, there is no need to set up additional counterweight components, making the overall structure more compact and reasonable. The control box 5 is used to configure the power supply and control module connected to the first and second drive mechanisms.
[0024] The limiting structure consists of limiting blocks 6 installed at corresponding ends of the second part 12 and the third part 13 of the bed frame 1, as shown in... Figure 1 In the initial state shown, the limiting blocks 6 of the second part 12 and the third part 13 are not in contact. As the second part 12 gradually swings upward, the other end of the third part 13 swings downward under the influence of gravity, causing the limiting blocks 6 of the second part 12 and the third part 13 to come into contact, allowing the second part 12 to drive the third part 13 to rise. Figure 2 , Figure 3As shown in the diagram. When the second drive mechanism 4 drives the second part 12 to swing downwards until the other end of the third part 13 contacts the base 2, the third part 13 returns to its horizontal position under the action of gravity.
[0025] The above embodiments are merely one preferred embodiment of the present utility model. Ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model's technical solution are all included within the protection scope of the present utility model.
Claims
1. A folding bed steel frame structure for leisure use, comprising a bed frame and a base, characterized in that: The bed frame includes a first part that supports the user's back and head, a second part that supports the user's thighs, a third part that supports the user's calves, and a middle part that supports the user's buttocks. The middle part of the bed frame is fixedly mounted on a base. The first part of the bed frame is rotatably connected to one end of the middle part, and the second part is rotatably connected to the other end of the middle part. The second part and the third part are rotatably connected. A first drive mechanism for driving the first part to rotate relative to the middle part is provided between the base and the first part. A second drive mechanism for driving the second part to rotate relative to the middle part is provided between the base and the second part. A third drive mechanism for driving the third part to rotate relative to the second part is provided between the second part and the third part.
2. The folding bed steel frame structure for leisure use according to claim 1, characterized in that: The third part rotates downward relative to the second part by its own weight when the second part rotates upward relative to the center. The third drive mechanism includes a limiting structure that can limit the angle range of the third part rotating downward relative to the second part. When the second part rotates upward relative to the center, it can drive the third part to lift upward.
3. The folding bed steel frame structure for leisure use according to claim 1, characterized in that: The first part has an internal space for accommodating the first drive mechanism, and the third part has an internal space for accommodating the second drive mechanism.
4. The folding bed steel frame structure for leisure use according to claim 2, characterized in that: The first drive mechanism is a horizontal electric push rod. The guide rail part of the horizontal electric push rod is fixed to the middle part of the base or bed frame. The movable part of the horizontal electric push rod and the first part are connected and engaged by a connecting rod pivot. The connecting rod extends into the internal space of the first part.
5. The folding bed steel frame structure for leisure use according to claim 2, characterized in that: The second drive mechanism is a telescopic electric push rod, with both ends of the telescopic electric push rod pivotally connected to the base and the second part of the bed frame, respectively.
6. The folding bed steel frame structure for leisure use according to claim 1, characterized in that: The third part has an internal space, in which counterweights are installed.
7. The folding bed steel frame structure for leisure use according to claim 6, characterized in that: The counterweight is a control box.
8. The folding bed steel frame structure for leisure use according to claim 2, characterized in that: The limiting structure consists of limiting blocks installed at corresponding ends of the second and third parts of the bed frame.