Mattress capable of adjusting hardness of different positions
By using a steel rope and lead screw structure to achieve longitudinal and lateral deformation of the springs, the problem of existing spring mattresses being unable to deform laterally is solved, thus improving the comfort and usability of the mattress.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN XINZHIYUE IND CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-15
AI Technical Summary
Existing adjustable spring mattresses, because the springs cannot deform laterally, do not conform sufficiently to the body, thus affecting comfort.
A steel cable is used to connect the lifting plate to the top cover and the bottom shell, allowing the spring to deform longitudinally and laterally. The stiffness of the spring can be adjusted at different positions by adjusting the height of the lifting plate. The support components include the bottom shell, the lifting plate, the spring, and the top cover. The height of the spring is positioned and adjusted using a steel cable and screw structure.
It improves the fit between the mattress and the human body, enhances comfort, and is suitable for people of different heights and weights, while also offering structural stability and ease of maintenance.
Smart Images

Figure CN224235071U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mattress technology, and in particular to a mattress with adjustable firmness at different positions. Background Technology
[0002] Adjustable mattresses typically come in two forms: air-cushion mattresses, which adjust firmness by controlling the air pressure inside the air chambers; and spring mattresses, which typically use the compression stroke of springs to change firmness. Air-cushion mattresses, due to their material properties, have poor breathability and are therefore unsuitable for long-term use. Thus, spring mattresses are the more commonly used type in daily life.
[0003] Existing adjustable-firm spring mattresses typically have a rigid adjustment mechanism inside the springs. This mechanism restricts the springs to longitudinal deformation, preventing them from bending laterally. For example, in a mattress with adjustable firmness disclosed in Chinese patent CN218528285U, the springs are restricted by an external threaded sleeve and a movable rod, preventing them from bending laterally; and in a suspended mattress with adjustable firmness disclosed in Chinese patent CN220587909U, the springs are restricted by an adjustment rod, preventing them from bending laterally. Therefore, these two types of adjustable-firm spring mattresses have the following drawbacks in use:
[0004] Because springs cannot deform laterally, when a person lies on the mattress, the springs in contact with the body are only compressed vertically downwards, creating a stepped effect between the springs. As a result, the springs do not conform sufficiently to the body, which seriously affects the comfort of the mattress. Utility Model Content
[0005] The purpose of this utility model is to at least solve one of the technical defects described in the background art.
[0006] Therefore, one objective of this utility model is to propose a mattress with adjustable firmness at different positions, aiming to solve the problem that existing adjustable spring mattresses, due to the inability of the springs to deform laterally, do not conform sufficiently to the human body, thus seriously affecting the comfort of the mattress.
[0007] To achieve the above objectives, one embodiment of the present invention provides a mattress with adjustable firmness at different positions, including a mattress surround, multiple sets of support components located inside the mattress surround, and a soft pad connected to the top of the mattress surround by a zipper. The support components include a bottom shell with a top opening, a lifting plate that is vertically connected inside the bottom shell, and multiple top covers. Multiple springs are provided between the lifting plate and the multiple top covers, and steel ropes are connected between the top covers and the bottom inside the bottom shell.
[0008] The beneficial effects are as follows: The steel cable runs through the lifting plate, with both ends connected to the bottom of the top cover and the bottom shell, respectively. This allows for the positioning of the top cover height, thus determining the height of the spring top. By adjusting the height of the lifting plate, the firmness of the support components can be adjusted. Because the steel cable can be bent arbitrarily, the springs can deform not only longitudinally but also laterally when lying on the mattress, allowing the top cover to tilt in any direction. This results in a more complete fit with the human body, improving the comfort of the mattress. Furthermore, the multiple support components allow for adjustment of the firmness of different parts of the mattress, making it suitable for people of different heights and weights.
[0009] Preferably, in any of the above embodiments, a lead screw is rotatably connected inside the bottom shell, and a joint is fixedly connected to one end of the lead screw. Multiple sliders are threadedly connected to the outer surface of the lead screw, and a support rod is hinged to the top of the slider. The end of the support rod away from the slider is hinged to the bottom of the lifting plate.
[0010] Furthermore, the bottom of the lifting plate is fixedly connected to two crossbeams, and the support rod is hinged between the two crossbeams.
[0011] The beneficial effects are as follows: the design of the crossbeam can improve the rigidity of the lifting plate, making its deformation after being subjected to force smaller. This avoids the problem that the support height of the bottom of the spring changes due to the bending deformation of the lifting plate, resulting in different elastic forces of multiple springs in the same group, thereby improving the stability of the structure.
[0012] Preferably, in any of the above embodiments, the top of the lifting plate is fixedly connected to multiple positioning cylinders, and the bottom end of the spring is inserted into the interior of the positioning cylinders.
[0013] The beneficial effect is that it makes it easier to position the bottom of the spring and avoids the problem of spring slippage.
[0014] Preferably, in any of the above embodiments, the top end of the steel rope is detachably connected to the top cover, and the bottom end of the steel rope is detachably connected to the bottom of the bottom shell.
[0015] Furthermore, a limiting plate is fixedly connected to the top of the steel rope, and multiple grooves are provided on the top of the top cover, with a T-shaped groove provided at the bottom of the groove. The limiting plate passes through the T-shaped groove into the interior of the groove.
[0016] The beneficial effects are as follows: when the limiting plate is erected, it can pass upward through the T-slot; when the limiting plate is laid horizontally, it can be inserted into the groove. Conversely, the limiting plate can be removed from the top cover, which facilitates the disassembly and assembly of the steel rope and the top cover. After the top cover is disassembled and assembled, the spring can be disassembled and replaced. Therefore, if a spring is damaged later, it is easy to replace it with a new spring, which facilitates later maintenance.
[0017] Furthermore, a screw is fixedly connected to the bottom end of the steel rope, and multiple threaded holes are opened at the bottom of the bottom shell. The bottom end of the steel rope is threadedly connected to the inside of the threaded holes through the screw.
[0018] The beneficial effects are: it facilitates the disassembly and assembly of the bottom end of the steel rope and the bottom shell, so that if a steel rope breaks, it can be replaced individually, which facilitates the maintenance of the steel rope in the later stage.
[0019] Preferably, one side of the bottom shell has a longitudinal slot, and one side of the slot has a scale line. A pointer is fixedly connected to one side of the lifting plate, and the pointer is slidably connected inside the slot.
[0020] The beneficial effect is that the pointer rises and falls synchronously with the lifting plate, so when adjusting the stiffness, the stiffness of the spring can be judged by observing the scale line corresponding to the pointer, thus facilitating the adjustment of the stiffness of the support component.
[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0023] Figure 1 This is a schematic diagram of the structure of this utility model.
[0024] Figure 2 This is a schematic diagram of the support component in Embodiment 1 of this utility model.
[0025] Figure 3 This is a cross-sectional view of the support component in Embodiment 1 of this utility model.
[0026] Figure 4 This is a schematic diagram of the bottom structure of the lifting plate in Embodiment 1 of this utility model.
[0027] Figure 5 This is a schematic diagram of the support component in Embodiment 2 of this utility model.
[0028] Figure 6 This is a cross-sectional view of the bottom shell in Embodiment 2 of this utility model.
[0029] Figure 7 This is a schematic diagram of the lifting plate and top cover in Embodiment 2 of this utility model.
[0030] Figure 8 This is a schematic diagram of the steel rope structure in Embodiment 2 of this utility model.
[0031] Figure 9 This is a schematic diagram of the support component and its enlarged portion in Embodiment 3 of this utility model.
[0032] The components include: 1. Bed surround, 2. Support assembly, 20. Bottom shell, 201. Lead screw, 202. Connector, 203. Slider, 204. Support rod, 205. Threaded hole, 206. Hole groove, 207. Scale line, 21. Lifting plate, 211. Crossbeam, 212. Positioning cylinder, 213. Pointer, 22. Spring, 23. Top cover, 231. Groove, 232. T-slot, 24. Steel rope, 241. Limiting plate, 242. Screw, 3. Soft pad. Detailed Implementation
[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0035] This invention provides a mattress with adjustable firmness at different positions.
[0036] Example 1:
[0037] like Figure 1 As shown, it includes a bed surround 1, inside which multiple sets of support components 2 are arranged side by side, and the top of the bed surround 1 is detachably connected to a cushion 3 via a zipper, the interior of the cushion 3 being latex.
[0038] like Figure 2 As shown, the support assembly 2 includes a bottom shell 20 with a top opening, a lifting plate 21, multiple springs 22, and multiple top covers 23. Multiple positioning cylinders 212 are fixedly connected to the top of the lifting plate 21. The bottom ends of the springs 22 are inserted into the interior of the positioning cylinders 212, and the top covers 23 are fitted over the tops of the springs 22. Figure 3 As shown, a through hole is provided on the lifting plate 21, through which the steel rope 24 passes. The two ends of the steel rope 24 are connected to the bottom of the top cover 23 and the bottom shell 20, respectively. The steel rope 24 limits the height of the top cover 23.
[0039] like Figure 3-4 As shown, a lead screw 201 is rotatably connected inside the bottom shell 20, and a connector 202 is fixedly connected to one end of the lead screw 201. The connector 202 is used to connect a wrench, and the lead screw 201 can be rotated by the wrench. Multiple sliders 203 are threadedly connected to the outer surface of the lead screw 201. A groove is opened at the bottom inside the bottom shell 20, and the sliders 203 are slidably connected in the groove. A support rod 204 is hinged to the top of the sliders 203. Two crossbeams 211 are fixedly connected to the bottom of the lifting plate 21. The crossbeams 211 can strengthen the lifting plate 21, and the top of the support rod 204 is hinged between the two crossbeams 211. By rotating the lead screw 201, the sliders 203 slide in the groove, thereby pushing the support rod 204 to change the tilt angle, so as to raise or lower the lifting plate 21.
[0040] The working principle of this embodiment is as follows: In use, by rotating the lead screw 201, the slider 203 is pushed to slide, so that the lifting plate 21 is raised and lowered, thereby changing the height of the bottom of the spring 22. The steel rope 24 limits the height of the top cover 23, so that when the height of the bottom of the spring 22 changes, the height of the top of the spring 22 remains unchanged, thereby achieving the purpose of changing the height of the spring 22. Since the height of the spring 22 is changed due to compression, the elasticity of the support component 2 is changed. By changing the elasticity of multiple support components 2 inside the bed surround 1, the firmness of different positions of the mattress is adjusted.
[0041] Example 2:
[0042] like Figure 5-8 As shown, based on Embodiment 1, a limiting plate 241 is fixedly connected to the top of the steel rope 24, and a plurality of grooves 231 are provided on the top of the top cover 23, and a T-shaped groove 232 is provided at the bottom of the grooves 231. By standing the limiting plate 241 upright, it can pass upward through the T-shaped groove 232. Then, by standing the limiting plate 241 horizontally, it can be inserted into the groove 231, thereby facilitating the assembly and disassembly of the steel rope 24 and the top cover 23.
[0043] Specifically, the bottom end of the steel rope 24 is fixedly connected to a screw 242, and the bottom of the bottom shell 20 is provided with multiple threaded holes 205, which correspond one-to-one with the steel rope 24. Thus, the screw 242 at the bottom end of the steel rope 24 can pass through the through hole on the lifting plate 21 and then be threaded into the inside of the threaded hole 205, thereby facilitating the disassembly and assembly between the bottom end of the steel rope 24 and the bottom shell 20.
[0044] Example 3:
[0045] like Figure 9As shown, based on Embodiment 1 or Embodiment 2, a longitudinal slot 206 is provided on one side of the bottom shell 20, and a scale line 207 is provided on one side of the slot 206. A pointer 213 is fixedly connected to one side of the lifting plate 21, and the pointer 213 is slidably connected inside the slot 206. During the process of raising or lowering the lifting plate 21, the pointer 213 rises and falls synchronously. With the help of the scale line 207 on one side of the slot 206, the adjustment height of the lifting plate 21 can be clearly understood, thereby determining the height to which the spring 22 is compressed. Therefore, it is convenient to understand the value of adjusting the softness and hardness of the spring 22.
Claims
1. A mattress with adjustable firmness at different positions, comprising a mattress surround (1), multiple sets of support components (2) located inside the mattress surround (1), and a soft pad (3) connected to the top of the mattress surround (1) by a zipper, characterized in that, The support assembly (2) includes a bottom shell (20) with a top opening, a lifting plate (21) that is vertically connected inside the bottom shell (20), and a plurality of top covers (23). A plurality of springs (22) are provided between the lifting plate (21) and the plurality of top covers (23), and a steel cable (24) is connected between the top cover (23) and the bottom inside the bottom shell (20).
2. The mattress with adjustable firmness at different positions according to claim 1, characterized in that, The bottom shell (20) is rotatably connected to a lead screw (201), and one end of the lead screw (201) is fixedly connected to a connector (202). The outer surface of the lead screw (201) is threaded with multiple sliders (203). The top of the slider (203) is hinged to a support rod (204), and the end of the support rod (204) away from the slider (203) is hinged to the bottom of the lifting plate (21).
3. The mattress with adjustable firmness at different positions according to claim 2, characterized in that, The bottom of the lifting plate (21) is fixedly connected to two crossbeams (211), and the support rod (204) is hinged between the two crossbeams (211).
4. The mattress with adjustable firmness at different positions according to claim 1, characterized in that, The top of the lifting plate (21) is fixedly connected to a plurality of positioning cylinders (212), and the bottom end of the spring (22) is inserted into the inside of the positioning cylinders (212).
5. The mattress with adjustable firmness at different positions according to any one of claims 1-4, characterized in that, The top end of the steel rope (24) is detachably connected to the top cover (23), and the bottom end of the steel rope (24) is detachably connected to the bottom of the bottom shell (20).
6. The mattress with adjustable firmness at different positions according to claim 5, characterized in that, The top of the steel rope (24) is fixedly connected to a limiting plate (241). The top of the top cover (23) has multiple grooves (231) and a T-shaped groove (232) is provided at the bottom of the grooves (231). The limiting plate (241) passes through the T-shaped groove (232) into the interior of the groove (231).
7. The mattress with adjustable firmness at different positions according to claim 5, characterized in that, The bottom end of the steel rope (24) is fixedly connected to a screw (242), and the bottom of the bottom shell (20) is provided with multiple threaded holes (205). The bottom end of the steel rope (24) is threadedly connected to the inside of the threaded holes (205) through the screw (242).
8. The mattress with adjustable firmness at different positions according to claim 1, characterized in that, The bottom shell (20) has a longitudinal slot (206) on one side, and a scale line (207) is provided on one side of the slot (206). A pointer (213) is fixedly connected to one side of the lifting plate (21), and the pointer (213) is slidably connected inside the slot (206).