Mattress spring assembly with adjustable hardness

Abstract

The invention provides a hardness-adjustable mattress spring assembly which comprises a fixed plate and a movable plate located above the fixed plate, a plurality of spring parts are arranged between the movable plate and the fixed plate, each spring part comprises a T-shaped pipe installed on the movable plate, a connecting pipe is arranged in the middle of each T-shaped pipe, a T-shaped rod is arranged in each connecting pipe, and the T-shaped rod is connected with the movable plate. The top end of the T-shaped rod extends out of the top end of the connecting pipe and is fixedly connected with a top plate, a spring body is arranged between the T-shaped pipe and the top plate, a lifting part is arranged between the movable plate and the fixed plate, and the lifting part is used for adjusting the distance between the movable plate and the fixed plate so that the compression amount of the spring body can be adjusted, and the hardness can be adjusted. According to the mattress, the position of the moving plate is adjusted through the lifting part, the compression amount of all the spring bodies can be uniformly adjusted at a time, so that the overall hardness of the mattress is rapidly changed, and compared with a traditional mode that adjustment needs to be conducted area by area or part by part, the adjustment process is simplified, and operation is more convenient.

Description

Technical Field

[0001] This invention relates to the field of mattress spring technology, and more specifically, to a mattress spring assembly with adjustable firmness. Background Technology

[0002] With the improvement of people's living standards and the enhancement of health awareness, mattresses, as core home furnishings that affect sleep quality, have increasingly prominent personalized adaptation needs, and different groups of people have significant differences in their requirements for mattress firmness. In existing adjustable spring assemblies, adjusting spring compression often requires adjusting each spring individually or replacing spring groups with different elastic parameters. This makes it impossible to adjust the compression of all springs simultaneously, resulting in a rather inconvenient adjustment process. Therefore, we have made an improvement by proposing a mattress spring assembly with adjustable firmness. Summary of the Invention

[0003] This invention provides a mattress spring assembly with adjustable firmness, including a fixed plate and a movable plate located above the fixed plate. A plurality of spring portions are disposed between the movable plate and the fixed plate. Each spring portion includes a T-shaped tube mounted on the movable plate, a connecting tube disposed in the middle of the T-shaped tube, and a T-shaped rod disposed inside the connecting tube. The top end of the T-shaped rod extends from the top end of the connecting tube and is fixedly connected to a top plate. A spring body is disposed between the T-shaped tube and the top plate. A lifting part is disposed between the movable plate and the fixed plate, and the lifting part is used to adjust the distance between the movable plate and the fixed plate to adjust the compression of the spring body, thereby achieving adjustment of the firmness.

[0004] As a preferred technical solution of this application, a connecting plate is fixedly connected to the bottom end of the connecting pipe, and the connecting plate is installed on the top of the fixed plate.

[0005] As a preferred technical solution of this application, a limiting member is provided between the fixed plate and the movable plate.

[0006] As a preferred technical solution of this application, the limiting member includes a plurality of limiting rods installed on the top of the fixed plate, the top ends of the limiting rods passing through the movable plate and extending above the movable plate.

[0007] As a preferred technical solution of this application, the lifting part includes two threaded rods, a driving member is provided between one end of the two threaded rods, and a plurality of adjusting members are provided on the outer surface of the two threaded rods.

[0008] As a preferred technical solution of this application, the adjusting member includes two second connecting rods threadedly connected to the threaded rod. The fixed plate and the moving plate are respectively mounted with a second connecting frame and a first connecting frame on their sides that are close to each other. The first connecting frame and the second connecting frame are all hinged to the two second connecting rods.

[0009] As a preferred technical solution of this application, the thread on the threaded rod is divided into several segments, and the positions of the several segments correspond to the positions of several adjusting components. Each segment of the thread consists of two threads with opposite helical directions.

[0010] As a preferred technical solution of this application, the driving component includes a protective box disposed between the ends of two threaded rods. A bearing is provided at the connection between the protective box and the threaded rods. One end of each of the two threaded rods is fixedly connected to a worm gear located inside the protective box. Both worm gears are connected to a hollow worm. A first connecting rod is fixedly connected between the two hollow worms. One end of the first connecting rod passes through the protective box and extends to the outside of the protective box and is fixedly connected to a handle.

[0011] As a preferred technical solution of this application, a bearing is provided at the connection between the outer surface of the first connecting rod and the protective box, and a protective plate is installed on the protective box by bolts.

[0012] As a preferred technical solution of this application, a notch is provided on one side of the movable plate, and the position of the protective plate corresponds to the position of the notch.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: In the scheme of this application: This application allows for a one-time, uniform adjustment of the compression of all spring bodies by adjusting the position of the movable plate via the lifting mechanism. This enables a rapid change in the overall firmness of the mattress, simplifying the adjustment process and making the operation more convenient compared to the traditional method that requires adjustment of individual areas or parts. Attached Figure Description

[0014] Figure 1 A schematic diagram of the adjustable mattress spring assembly provided in this application; Figure 2 A bottom view of the adjustable mattress spring assembly provided in this application; Figure 3 A side view of the adjustable mattress spring assembly provided in this application; Figure 4 A schematic diagram of the worm gear and hollow worm provided in this application; Figure 5 A schematic diagram of the spring portion provided in this application; Figure 6 A cross-sectional view of the connecting pipe provided in this application; Figure 7 A schematic diagram of the structure of the adjusting component provided in this application.

[0015] The image shows: 1. Fixed plate; 101. Moving plate; 102. Limiting rod; 2. Spring part; 201. Connecting plate; 202. Connecting pipe; 203. T-shaped pipe; 204. T-shaped rod; 205. Top plate; 206. Spring body; 301. Threaded rod; 302. Protective box; 303. Worm gear; 304. Hollow worm gear; 305. First connecting rod; 306. Handle; 307. Second connecting rod; 308. First connecting frame; 309. Support arm; 310. Second connecting frame; 311. Protective plate; 4. Notch. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0017] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] For an example, please refer to... Figure 1 Figure 7 An adjustable mattress spring assembly includes a fixed plate 1 and a movable plate 101 located above the fixed plate 1. A plurality of spring parts 2 are provided between the movable plate 101 and the fixed plate 1. Each spring part 2 includes a T-shaped tube 203 mounted on the movable plate 101. A connecting tube 202 is provided in the middle of the T-shaped tube 203. A T-shaped rod 204 is provided inside the connecting tube 202. The top end of the T-shaped rod 204 extends from the top end of the connecting tube 202 and is fixedly connected to a top plate 205. A spring body 206 is provided between the T-shaped tube 203 and the top plate 205. A lifting part is provided between the movable plate 101 and the fixed plate 1. The lifting part is used to adjust the distance between the movable plate 101 and the fixed plate 1 to adjust the compression of the spring body 206 and thus adjust the firmness. When the moving plate 101 is driven to rise and fall relative to the fixed plate 1 by the lifting unit, the T-shaped tube 203 moves synchronously with the moving plate 101, thereby changing the distance between it and the top plate 205, and directly acting on the initial compression state of the spring body 206.

[0020] Furthermore, a connecting plate 201 is fixedly connected to the bottom end of the connecting pipe 202. The connecting plate 201 is installed on the top of the fixing plate 1, and the connecting plate 201 and the fixing plate 1 are connected by bolts.

[0021] Furthermore, a limiting component is provided between the fixed plate 1 and the movable plate 101; the limiting component includes several limiting rods 102 installed on the top of the fixed plate 1, the top of the limiting rods 102 passing through the movable plate 101 and extending above the movable plate 101, and the several limiting rods 102 are evenly distributed on the fixed plate 1, constraining the movement of the movable plate 101 from multiple points, avoiding force concentration and tilting caused by a single limiting point, making the movable plate 101 more stable when it rises and falls.

[0022] Furthermore, the lifting unit includes two threaded rods 301, with a driving component between one end of each threaded rod 301. Several adjusting components are provided on the outer surfaces of both threaded rods 301. Each adjusting component includes two second connecting rods 307 threaded onto the threaded rods 301. A second connecting frame 310 and a first connecting frame 308 are respectively mounted on the adjacent sides of the fixed plate 1 and the movable plate 101. Support arms 309 are hinged between the first connecting frame 308 and the second connecting frame 310 and the two second connecting rods 307. When the threaded rods 301 rotate, the two second connecting rods 307 move relative to or towards each other along the threaded rods 301, achieving vertical lifting of the movable plate 101.

[0023] Furthermore, the thread on the threaded rod 301 is divided into several segments, and the positions of the several segments correspond to the positions of several adjusting components. Each segment of the thread consists of two threads with opposite helical directions. The two opposite helical directions of each segment of the thread cause the two second connecting rods 307 of the same adjusting component to move in opposite directions when the threaded rod 301 rotates, that is, to move closer or further away at the same time, ensuring that the support arm 309 exerts force synchronously.

[0024] Furthermore, the driving component includes a protective box 302 disposed between the ends of the two threaded rods 301. A bearing is provided at the connection between the protective box 302 and the threaded rods 301. One end of each of the two threaded rods 301 is fixedly connected to a worm gear 303 located inside the protective box 302. Both worm gears 303 are connected to a hollow worm 304. A first connecting rod 305 is fixedly connected between the two hollow worm 304. One end of the first connecting rod 305 passes through the protective box 302 and extends to the outside of the protective box 302 and is fixedly connected to a handle 306. The worm gears 303 and the hollow worm 304 adopt a self-locking design, so that when there is no external force to drive the handle 306, the worm gears 303 cannot drive the worm 304 in the reverse direction, thereby locking the position of the threaded rods 301 and preventing the moving plate 101 from moving down on its own due to the weight of the human body, ensuring that the adjusted hardness remains stable. Furthermore, a bearing is provided at the connection between the outer surface of the first connecting rod 305 and the protective box 302. A protective plate 311 is installed on the protective box 302 by bolts. The protective plate 311 cooperates with the protective box 302 to protect the worm gear 303 and the hollow worm 304.

[0025] Furthermore, a notch 4 is provided on one side of the movable plate 101, and the position of the protective plate 311 corresponds to the position of the notch 4. The notch 4 is designed to provide more operating space for the rotating handle 306.

[0026] When the handle 306 is rotated, the handle 306 drives the hollow worm gear 304 to rotate synchronously through the first connecting rod 305. The hollow worm gear 304 drives the meshing worm wheel 303 to rotate, which in turn drives the two threaded rods 301 to rotate synchronously. Since each thread on the threaded rod 301 is composed of two threads with opposite helical directions, when the threaded rod 301 rotates, the two second connecting rods 307 of the same adjusting component will move towards each other along the threaded rod 301. The second connecting rods 307 push the first connecting frame 308 and the second connecting frame 310 through the hinged support arm 309, so that the moving plate 101 rises or falls relative to the fixed plate 1 to adjust the compression of the spring body 206, thereby achieving the adjustment of the hardness.

[0027] In this invention, 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 part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A mattress spring assembly with adjustable firmness, characterized in that, The device includes a fixed plate (1) and a movable plate (101) located above the fixed plate (1). A plurality of spring parts (2) are provided between the movable plate (101) and the fixed plate (1). Each spring part (2) includes a T-shaped tube (203) installed on the movable plate (101). A connecting tube (202) is provided in the middle of the T-shaped tube (203). A T-shaped rod (204) is provided inside the connecting tube (202). The top end of the T-shaped rod (204) extends from the top end of the connecting tube (202) and is fixedly connected to a top plate (205). A spring body (206) is provided between the T-shaped tube (203) and the top plate (205). A lifting part is provided between the movable plate (101) and the fixed plate (1). The lifting part is used to adjust the distance between the movable plate (101) and the fixed plate (1) to adjust the compression of the spring body (206) and achieve the adjustment of the hardness.

2. The mattress spring assembly with adjustable firmness according to claim 1, characterized in that, The bottom end of the connecting pipe (202) is fixedly connected to a connecting plate (201), and the connecting plate (201) is installed on the top of the fixing plate (1).

3. The mattress spring assembly with adjustable firmness according to claim 1, characterized in that, A limiting member is provided between the fixed plate (1) and the movable plate (101).

4. The mattress spring assembly with adjustable firmness according to claim 3, characterized in that, The limiting component includes several limiting rods (102) installed on the top of the fixed plate (1), the top of the limiting rods (102) passing through the movable plate (101) and extending above the movable plate (101).

5. The mattress spring assembly with adjustable firmness according to claim 1, characterized in that, The lifting unit includes two threaded rods (301), a driving member is provided between one end of the two threaded rods (301), and a number of adjusting members are provided on the outer surface of the two threaded rods (301).

6. The mattress spring assembly with adjustable firmness according to claim 5, characterized in that, The adjusting component includes two second connecting rods (307) threaded onto the threaded rod (301). The fixed plate (1) and the movable plate (101) are respectively equipped with a second connecting frame (310) and a first connecting frame (308) on their adjacent sides. The first connecting frame (308) and the second connecting frame (310) are each hinged with a support arm (309) to the two second connecting rods (307).

7. The mattress spring assembly with adjustable firmness according to claim 6, characterized in that, The thread on the threaded rod (301) is divided into several segments, and the positions of the several segments correspond to the positions of several adjusting components. Each segment of the thread consists of two threads with opposite helical directions.

8. The mattress spring assembly with adjustable firmness according to claim 7, characterized in that, The drive unit includes a protective box (302) disposed between the ends of two threaded rods (301). A bearing is provided at the connection between the protective box (302) and the threaded rods (301). One end of each of the two threaded rods (301) is fixedly connected to a worm gear (303) located inside the protective box (302). Both worm gears (303) are connected to a hollow worm (304). A first connecting rod (305) is fixedly connected between the two hollow worms (304). One end of the first connecting rod (305) passes through the protective box (302) and extends to the outside of the protective box (302) and is fixedly connected to a handle (306).

9. The mattress spring assembly with adjustable firmness according to claim 8, characterized in that, A bearing is provided at the connection between the outer surface of the first connecting rod (305) and the protective box (302), and a protective plate (311) is installed on the protective box (302) by bolts.

10. The mattress spring assembly with adjustable firmness according to claim 9, characterized in that, The movable plate (101) has a notch (4) on one side, and the position of the protective plate (311) corresponds to the position of the notch (4).

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