Adjustable spring assembly for spring mattress

Abstract

The adjustable spring assembly comprises an outer cylinder, an inner cylinder is installed in the outer cylinder in a sliding mode, a spring is arranged in the inner cylinder, a fixing plate is installed at the bottom of the spring, the fixing plate is fixedly connected with a pull rope, a through hole is formed in the top of the inner cylinder, the pull rope penetrates through the through hole, and the through hole is communicated with the inner cylinder. At least one linear groove is formed in the outer wall of the outer barrel, at least one gear hole is formed in the inner wall of each linear groove at equal intervals, a limiting rod is fixedly connected to the outer wall of the inner barrel, and one end of each limiting rod penetrates through the corresponding linear groove; the positions of the inner cylinder and the outer cylinder are adjusted, the limiting rods are inserted into the gear holes in a matched mode, the local protruding degree of the spring mattress is adjusted, the pull ropes penetrate through the through holes to be connected with the fixing plates to adjust compression of the springs, the local hardness of the spring mattress is changed, the fitting degree and comfort of the mattress are improved, the structure is adjusted flexibly, and use is convenient and fast.

Description

An adjustable spring assembly for a spring mattress Technical Field

[0001] This utility model relates to the field of spring mattress technology, specifically to an adjustable spring assembly for a spring mattress. Background Technology

[0002] Spring mattresses are a widely used type of mattress. They consist of metal springs that support body weight using their resilience, offering good support and breathability. Common spring structures include interlocking springs and individually pocketed springs. The mattress surface is usually covered with multiple layers of soft material, making them suitable for most people, especially those who require high spinal support.

[0003] However, existing spring mattresses still have some significant shortcomings in their structural design. For example, the overall firmness of the mattress is usually not adjustable, and it is impossible to precisely control the degree of local protrusion according to the needs of different parts of the body. This makes it difficult for users to personalize the mattress according to their own body shape or comfort preferences, thus affecting sleep comfort and fit.

[0004] Furthermore, although some mattresses on the market have adjustable functions, they generally suffer from complex structures and inconvenient adjustments. They lack reliable limiting and positioning mechanisms, making them prone to structural loosening or functional failure during use, affecting the mattress's stability and lifespan.

[0005] Therefore, there is an urgent need for a well-structured and flexible spring mattress assembly that can easily adjust the overall firmness and precisely control the degree of local protrusion, thereby effectively improving the comfort of the mattress. Summary of the Invention

[0006] This utility model aims to solve at least one of the technical problems existing in the prior art.

[0007] Therefore, one objective of this utility model is to provide an adjustable spring assembly for a spring mattress. This adjustable spring assembly can adjust the position of the inner and outer springs, and, in conjunction with a pull cord, adjust the firmness and protrusion of certain parts of the spring mattress, thereby improving the mattress's fit and comfort. The structure is flexible and convenient to adjust.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an adjustable spring assembly for a spring mattress, the spring assembly including an outer cylinder 1 and an inner cylinder 2, the inner cylinder 2 being supported on a spring 8, a fixing plate being installed at the bottom of the spring, a pull rope being fixedly connected to the fixing plate, a through hole being provided at the top of the inner cylinder, the pull rope passing through the through hole, and the inner cylinder and the outer cylinder being connected by a spring adjustment mechanism.

[0009] Preferably, the spring adjusting mechanism includes a limiting rod, which is fixedly connected to the outer wall of the inner cylinder. The outer wall of the outer cylinder is provided with at least one linear groove, and the inner wall of the linear groove is provided with at least one stop hole arranged at equal intervals. One end of the limiting rod passes through the linear groove.

[0010] Preferably, the spring adjusting mechanism includes an external thread disposed on the outer wall of the inner cylinder and an internal thread disposed on the inner wall of the outer cylinder.

[0011] Preferably, a C-shaped buckle is rotatably installed on the top of the inner cylinder, and at least one limiting knot is provided on the outer wall of the pull rope at equal intervals.

[0012] Preferably, the outer wall of the outer cylinder is provided with a hanging lug, which is used for fixed connection with other springs.

[0013] Preferably, the inner wall of the through hole is provided with two rectangular holes symmetrically.

[0014] Preferably, the gear hole 5 is connected to the linear groove 4, and the gear hole 5 is in the shape of a horizontal hook.

[0015] Compared with the prior art, the beneficial effects of this utility model are: by adjusting the positions of the inner and outer cylinders, the position of the springs can be changed, thereby adjusting the degree of protrusion in a certain part of the spring mattress. The pull cord passes through the through hole and connects to the fixing plate to adjust the spring compression, thereby changing the local softness and firmness of the spring mattress, improving the mattress fit and comfort. The structure is flexible to adjust and convenient to use. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the adjustable spring assembly for a spring mattress according to an embodiment of the present invention;

[0017] Figure 2 is a schematic diagram of the adjustable spring assembly for a spring mattress from another perspective according to an embodiment of the present invention.

[0018] Figure 3 is a schematic diagram of the adjustable spring assembly for a spring mattress from another perspective according to an embodiment of the present invention.

[0019] Figure 4 is a cross-sectional structural diagram of the inner and outer cylinders in the adjustable spring assembly for a spring mattress according to an embodiment of the present invention.

[0020] Figure 5 is a structural schematic diagram of an adjustable spring assembly for a spring mattress provided in another embodiment of the present invention;

[0021] Figure 6 is a structural schematic diagram of the inner and outer cylinders of an adjustable spring assembly for a spring mattress provided in another embodiment of the present invention when the inner and outer cylinders are disassembled.

[0022] In the diagram: 1. Outer cylinder; 2. Inner cylinder; 3. Pull rope; 4. Linear groove; 5. Stop hole; 7. Limiting rod; 8. Spring; 9. Fixing plate; 10. Hanging lug; 11. Limiting knot; 12. C-shaped buckle; 13. Rectangular hole; 14. Through hole; 15. Internal thread; 16. External thread. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please refer to Figure 1. An embodiment of this utility model provides an adjustable spring assembly for a spring mattress, including: an outer cylinder 1.

[0025] In the following embodiments, the spring assembly is disposed inside the spring mattress, and both the spring assembly and the spring mattress are described in an embodiment with the mattress laid flat and face down.

[0026] As shown in Figures 2 and 4, the spring assembly includes an outer cylinder 1 and an inner cylinder 2. The inner cylinder 2 is supported on a spring 8. A fixing plate 9 is installed at the bottom of the spring 8, and a pull rope 3 is fixedly connected to the fixing plate 9. The outer diameter of the top end of the spring 8 is smaller than the inner diameter of the inner cylinder 2, thereby ensuring that the end of the spring is always inside the inner cylinder 2 during compression or release. The top of the inner cylinder 2 is provided with a through hole 14, through which the pull rope 3 passes. The inner cylinder 2 and the outer cylinder 1 are connected by a spring adjustment mechanism.

[0027] When in use, changing the position of the inner core 2 up or down can change the position of the spring 8 in the spring mattress, causing the spring mattress to bulge out or sag. When the spring 8 causes the spring mattress to bulge out, the pull cord 3 can be pulled to retract one end of the spring 8 until the spring 8 retracts to the surface of the spring mattress, thus adjusting the firmness of the spring assembly at the installation location of the spring mattress.

[0028] As shown in Figures 1 and 3, the outer wall of the outer cylinder 1 is equipped with a hanging ear 10. The hanging ear 10 is used to suspend the spring assembly and the spring mattress, which facilitates the installation of the spring assembly and the spring mattress.

[0029] In this embodiment, as shown in Figure 1, the spring adjustment mechanism includes a limiting rod 7, which is fixedly connected to the outer wall of the inner cylinder 2. The outer wall of the outer cylinder 1 is provided with at least one linear groove 4, and the inner wall of the linear groove 4 is provided with at least one stop hole 5 arranged at equal intervals. One end of the limiting rod 7 passes through the linear groove 4. The limiting rod 7 on the outer wall of the inner cylinder 2 can change its position in the linear groove 4 as the inner cylinder 2 moves up and down. By rotating the inner cylinder 2, the limiting rod 7 can be inserted into different stop holes 5 to achieve position switching and locking, control the position of the inner cylinder 2 inside the outer cylinder 1, and change the degree of protrusion of the spring 8 in the spring mattress when the inner cylinder 2 is pressed.

[0030] It should be noted that the gear position hole 5 is connected to the linear groove 4, and the gear position hole 5 is in the shape of a horizontal hook. When the inner cylinder 2 is rotated and the limiting rod 7 enters the different gear position holes 5 through the linear groove 4, the spring 8 can continuously press the inner cylinder 2 upward, so that the limiting rod 6 is attached to the inner wall upward in the gear position hole 5 and cannot move out on its own.

[0031] In another embodiment, as shown in Figures 5 and 6, the spring adjustment mechanism includes an external thread 16 disposed on the outer wall of the inner cylinder 2 and an internal thread 15 disposed on the inner wall of the outer cylinder 1. The inner cylinder 2 and the outer cylinder 1 are connected to each other by the external thread 16 and the internal thread 15, so that when the inner cylinder 2 rotates, it can move up and down inside the outer cylinder 1 to change the position of the spring 8, thereby affecting the degree of local protrusion of the spring 8 in the spring mattress. By pulling the pull rope 3, the end of the spring 8 at the local protrusion of the mattress is contracted, thereby keeping the mattress surface flat and changing the firmness of the spring 8.

[0032] Furthermore, referring to Figure 3, the inner wall of the through hole 14 is symmetrically provided with two rectangular holes 13. The rectangular holes 13 facilitate the insertion of a specific key structure and the rotation of the inner cylinder 2.

[0033] As shown in Figures 1 and 3, a C-shaped buckle 12 is rotatably installed on the top of the inner cylinder 2, and at least one limiting knot 11 is provided on the outer wall of the pull rope 3 at equal intervals. The pull rope 3 can be locked or released by rotating the C-shaped buckle 12, and the limiting knot 11 is used for segmented positioning.

[0034] It should be noted that the number of limit knots 11 matches the number of stop holes 5. The limit knots 11 and stop holes 5 work together to allow the pull rope 3 and stop holes 5 to have corresponding preset adjustment positions, which facilitates multi-level adjustment and control of the spring assembly's softness or protrusion.

[0035] Based on the above technical solution, the working steps of this solution are summarized as follows: When the spring assembly provided in this embodiment is used, the stiffness of the spring 8 can be adjusted by adjusting the position between the inner cylinder 2 and the outer cylinder 1. The inner cylinder 2 can slide inside the outer cylinder 1. The spring 8 is installed inside the inner cylinder 2, and a fixing plate 9 is connected to its bottom. The pull rope 3 on the fixing plate 9 extends outward through the through hole 14 at the top of the outer cylinder 1 and the inner cylinder 2. The outer wall of the outer cylinder 1 is provided with a linear groove 4, and multiple stop holes 5 are provided at equal intervals in the groove. The outer wall of the inner cylinder 2 is connected with a limit rod 7, one end of which can be inserted into different stop holes 5 to realize position switching and locking, and fix the position of the inner cylinder 2 inside the outer cylinder 1.

[0036] In another embodiment, the spring assembly provided is used such that the inner cylinder 2 and the outer cylinder 1 are threadedly connected to each other by external threads 16 and internal threads 15, so that the inner cylinder 2 can rotate and change its vertical position inside the outer cylinder 1, thereby adjusting the position of the spring 8 and the degree of local protrusion of the spring 8 in the spring mattress. At this time, by pulling the pull cord 3, the end of the spring 8 at the local protrusion of the mattress can be contracted, thereby keeping the mattress surface flat and changing the firmness of the spring 8.

[0037] When the position of the inner core 2 is changed up and down, causing a partial bulge in the spring mattress, the pull cord 3 is pulled to retract one end of the spring 8 until the spring 8 is retracted to the flat surface of the spring mattress and the spring 8 is compressed as a whole. This adjusts the firmness of the spring 8 at the installation location of the spring mattress. By changing the firmness of the spring 8, users can adjust it according to their own comfort level, thereby improving the comfort of the spring mattress.

[0038] In addition, pressing the inner cylinder 2 can push the spring 8 to protrude in the spring mattress, and rotating the inner cylinder 2 moves the limiting rod 7 to the current position hole 5, thus locking the position of the inner cylinder 2, adjusting the protrusion height of the spring mattress installation part, making the spring mattress more in line with the human body, improving comfort, and featuring flexible adjustment, high adjustment efficiency, ease of use, and convenient personalized use.

[0039] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable spring assembly for a spring mattress, characterized by The spring assembly includes an outer cylinder (1) and an inner cylinder (2). The inner cylinder (2) is supported on a spring (8). A fixing plate (9) is installed at the bottom of the spring (8). A pull rope (3) is fixedly connected to the fixing plate (9). A through hole (14) is provided at the top of the inner cylinder (2). The pull rope (3) passes through the through hole (14). The inner cylinder (2) and the outer cylinder (1) are connected by a spring adjustment mechanism.

2. An adjustable spring assembly for a spring mattress according to claim 1, wherein: The spring adjustment mechanism includes a limiting rod (7), which is fixedly connected to the outer wall of the inner cylinder (2). The outer wall of the outer cylinder (1) is provided with at least one linear groove (4), and the inner wall of the linear groove (4) is provided with at least one stop hole (5) arranged at equal intervals. One end of the limiting rod (7) passes through the linear groove (4).

3. An adjustable spring assembly for a spring mattress according to claim 1, wherein: The spring adjustment mechanism includes an external thread (16) disposed on the outer wall of the inner cylinder (2) and an internal thread (15) disposed on the inner wall of the outer cylinder (1).

4. An adjustable spring assembly for a spring mattress according to claim 1, characterized in that: The top of the inner cylinder (2) is rotatably fitted with a C-shaped buckle (12), and the outer wall of the pull rope (3) is provided with at least one equidistant limit knot (11).

5. An adjustable spring assembly for a spring mattress according to claim 2, wherein: The outer wall of the outer cylinder (1) is equipped with a hanging lug (10), which is used to fix and connect with other springs.

6. An adjustable spring assembly for a spring mattress as defined in claim 1, wherein: The inner wall of the through hole (14) is symmetrically provided with two rectangular holes (13).

7. An adjustable spring assembly for a spring mattress according to claim 2, wherein: The gear hole (5) is connected to the linear groove (4), and the gear hole (5) is in the shape of a horizontal hook.

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