Spring structure

Abstract

The utility model relates to the related technical field of mechanical engineering, in particular to a spring structure which comprises a sponge mat, a round groove is formed in the surface of one side of the sponge mat, a bottom mat is fixedly connected to the surface of one side of the sponge mat, and an auxiliary mat is fixedly connected to the surface of one side of the sponge mat. And a circular sponge block is fixedly connected to the surface of one side of the auxiliary pad. According to the spring structure, through arrangement of the spring mechanism, high-precision guiding of the cylinder, protective restraining of the ferrule and the wafer and buffering stopping of the circular sponge block mass, a stable mechanical structure is jointly constructed, the lateral deviation and piercing risks of the spring are remarkably reduced, the fatigue life of the mattress structure is greatly prolonged, and the spring structure has good application prospects in the aspects of functionality and practicability. The circular sponge block is accurately matched with the circular groove, so that uniform pressure conduction is ensured, local overload is avoided, a user can flexibly switch different spring mechanisms according to own preferences and physical states, personalized supporting adjustment is realized, and diversified sleep requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to a spring structure. Background Technology

[0002] In the field of mechanical engineering, mattress springs are typical support elements designed based on the principles of elasticity. Taking individually pocketed springs as an example, they are made by inserting individual coil springs into non-woven fabric bags and arranging them in a matrix. By utilizing the independence of the mechanical structure, they achieve the characteristic that single-point force does not interfere with each other. They absorb human body pressure and distribute weight through spring deformation, and achieve overall support balance through the mechanical transmission of the connected fabric bags. Traditional circular springs connect coil springs into a whole through spring wires. They reduce costs through large-scale machining. Although they are less resistant to interference, they can still provide basic elastic support for economical mattresses by relying on the mechanical calculation of spring wire diameter and number of coils. Both types of springs meet the ergonomic support needs of different scenarios through mechanical structure design and mechanical parameter optimization.

[0003] However, the existing spring structure, when used in mattresses, lacks a precise and effective guiding constraint and protective limiting mechanism. Due to the lack of a guiding structure design, the spring is prone to breaking through the stability boundary of the mechanical structure during long-term bearing of human body pressure and experiencing high-frequency elastic deformation, resulting in lateral slippage or spiral twisting. This leads to an imbalance in the distribution of the support force field, affecting the user experience. More importantly, this structural defect may cause safety hazards. When the spring deformation exceeds a reasonable threshold, its end may break through the protective barrier of the mattress fabric layer or filling layer, creating a puncture risk. Utility Model Content

[0004] The purpose of this invention is to provide a spring structure to address the shortcomings of existing spring structures mentioned in the background art. These existing spring structures, when used in mattresses, lack precise and effective guiding constraints and protective limiting mechanisms. Due to the lack of a guiding structure design, the spring, under long-term human body pressure and undergoing high-frequency elastic deformation, is prone to exceeding the stability boundaries of the mechanical structure, resulting in lateral slippage or helical twisting. This leads to an imbalance in the distribution of the support force field, affecting the user experience. More importantly, this structural defect may pose a safety hazard. When the spring deformation exceeds a reasonable threshold, its end may break through the protective barrier of the mattress fabric or filling layer, creating a puncture risk.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a spring structure, including a sponge pad, a circular groove is formed on one side surface of the sponge pad, a bottom pad is fixedly connected to one side surface of the sponge pad, an auxiliary pad is fixedly connected to one side surface of the sponge pad, a circular sponge block is fixedly connected to one side surface of the auxiliary pad, and a spring mechanism is provided on the inner wall surface of the circular groove.

[0006] The spring mechanism includes a cloth bag, the outer wall surface of which is slidably connected to the inner wall surface of the circular groove, a circular piece slidably connected to the inner wall surface of the cloth bag, a collar fixedly connected to one side surface of the circular piece, a cylinder fixedly connected to one side surface of the collar, a first spring slidably connected to the outer wall surface of the cylinder, a second spring slidably connected to the outer wall surface of the cylinder, and a sponge ball slidably connected to the inner wall surface of the second spring.

[0007] Preferably, the sponge pad, circular groove, and bottom pad have the same cross-sectional dimensions, are distributed in parallel, and have two spring mechanisms.

[0008] Preferably, multiple circular sponge blocks of the same size are provided and are distributed at equal intervals along the side surface of the auxiliary pad close to the sponge pad, and the outer wall size of the circular sponge block matches the inner wall size of the circular groove.

[0009] Preferably, the inner wall size of the circular groove matches the outer wall size of the cloth bag, and the cloth bag and the circular sponge block are distributed in parallel.

[0010] Preferably, the collar and the disc are provided in two of the same size, and the inner wall size of the collar matches the outer wall size of the first spring and the second spring.

[0011] Preferably, the height of the sponge block matches the distance between the two collars, and the central axis of the sponge block matches the central axis of the first spring and the second spring.

[0012] Preferably, two cylinders of the same size are provided and are arranged in parallel, and the outer wall size of the cylinder matches the inner wall size of the first spring and the second spring.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This spring structure, through the setting of the spring mechanism, the high-precision guidance of the cylinder, the protective constraint of the collar and the circular plate, and the buffer stop of the circular sponge block, jointly constructs a stable mechanical framework, significantly reducing the risk of lateral spring displacement and puncture, and greatly improving the fatigue life of the mattress structure. In terms of functionality and practicality, the precise matching of the circular sponge block and the circular groove ensures uniform pressure transmission and avoids local overload. Users can also flexibly switch different spring mechanisms according to their own preferences and physical conditions to achieve personalized support adjustment and meet diverse sleep needs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the circular sponge block structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the disassembled structure of the spring mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the cloth bag of this utility model;

[0018] Figure 5 This is a cross-sectional view of the spring mechanism of this utility model.

[0019] In the diagram: 1. Sponge pad; 2. Circular groove; 3. Bottom pad; 4. Auxiliary pad; 5. Circular sponge block; 6. Spring mechanism; 601. Cloth bag; 602. Circular piece; 603. Ring; 604. Cylinder; 605. First spring; 606. Second spring; 607. Sponge lump. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5 The present invention provides a technical solution: a spring structure including a sponge pad 1, a circular groove 2 is provided on one side surface of the sponge pad 1, a bottom pad 3 is fixedly connected to one side surface of the sponge pad 1, an auxiliary pad 4 is fixedly connected to one side surface of the sponge pad 1, a circular sponge block 5 is fixedly connected to one side surface of the auxiliary pad 4, and a spring mechanism 6 is provided on the inner wall surface of the circular groove 2.

[0022] The spring mechanism 6 includes a cloth bag 601, the outer wall surface of which is slidably connected to the inner wall surface of the circular groove 2. A circular piece 602 is slidably connected to the inner wall surface of the cloth bag 601. A collar 603 is fixedly connected to one side surface of the circular piece 602. A cylinder 604 is fixedly connected to one side surface of the collar 603. A first spring 605 is slidably connected to the outer wall surface of the cylinder 604. A second spring 606 is slidably connected to the outer wall surface of the cylinder 604. A sponge block 607 is slidably connected to the inner wall surface of the second spring 606. The mechanism is connected via the cloth bag 601, the circular piece 602, the collar 603, the cylinder 604, and the first spring 605. The arrangement of spring 605, second spring 606, and sponge block 607 ensures that, during use, the outer wall of cylinder 604 and the inner wall of first spring 605 form a high-precision sliding fit, strictly limiting the spring deformation to the axial direction. The collar 603 and the disc 602 constitute a protective constraint structure, which on the one hand provides protection for first spring 605 to prevent it from puncturing cloth bag 601 and sponge pad 1, and on the other hand, the disc 602 increases the force-bearing area of ​​the spring, optimizes the pressure transmission path, and improves structural stability. The sponge block 607, located at the gap of spring mechanism 6, plays a buffering and stopping role when the spring is compressed to its limit position.

[0023] Furthermore, the sponge pad 1, circular groove 2, and bottom pad 3 have the same cross-sectional dimensions and are distributed in parallel. There are two spring mechanisms 6. With the arrangement of spring mechanisms 6, the first spring 605 adopts a multi-coil design, which can generate more elastic potential energy conversions during the compression stroke. In the initial stage of force application, it can absorb human body pressure with a more delicate buffer gradient and effectively attenuate high-frequency vibrations. The second spring 606, on the other hand, adopts a fewer-coil design to form a high-rigidity mechanical structure. When the pressure continues to increase, it provides high-strength support with a low deformation rate, accurately responding to the bearing needs of key stress points of the human body. By switching between different spring mechanisms 6, user needs can be better met.

[0024] Furthermore, multiple circular sponge blocks 5 of the same size are provided and are evenly distributed along the surface of the auxiliary pad 4 near the sponge pad 1. The outer wall dimensions of the circular sponge blocks 5 match the inner wall dimensions of the circular grooves 2. Through the arrangement of the circular sponge blocks 5 and the circular grooves 2, a highly efficient pressure dispersion and precise transmission system is formed during use. The multiple equidistantly distributed circular sponge blocks 5 act like a pressure sensor array, initially discretizing the load applied by the human body to the auxiliary pad 4, thus avoiding localized pressure concentration.

[0025] Furthermore, the inner wall dimensions of the circular groove 2 match the outer wall dimensions of the cloth bag 601. The cloth bag 601 and the circular sponge block 5 are distributed in parallel. Through the setting of the circular groove 2 and the cloth bag 601, the precise matching design between the inner wall of the circular groove 2 and the outer wall of the cloth bag 601 during use creates a stable physical limiting structure. When the pressure is transmitted to the spring mechanism 6 through the circular sponge block 5, the cloth bag 601 can be firmly fixed in the circular groove 2, ensuring that the spring mechanism 6 maintains a stable position during the force process.

[0026] Furthermore, two rings 603 and discs 602 of the same size are provided. The inner wall size of the ring 603 matches the outer wall size of the first spring 605 and the second spring 606. Through the arrangement of discs 602, rings 603, first spring 605 and second spring 606, in use, the rings 603 restrict the radial expansion and lateral displacement of the spring, ensuring that the spring deformation is strictly along the axial direction, reducing the probability of torsional failure caused by eccentric force. At the same time, the two rings 603 and discs 602 form an effective clamping structure, which not only provides stable boundary support for the spring, but also increases the force-bearing area at the end of the spring through discs 602, evenly distributing concentrated loads and reducing stress concentration.

[0027] Furthermore, the height of the sponge block 607 matches the distance between the two collars 603, and the central axis of the sponge block 607 matches the central axis of the first spring 605 and the second spring 606. Through the setting of the sponge block 607, in use, the sponge block 607, with its height precisely matched with the distance between the two collars 603 and its design coinciding with the central axis of the two springs, can fill the gap between the springs in time and play a flexible stopping role. Its elastic buffering characteristics effectively absorb the impact force at the ends of the first spring 605 and the second spring 606, avoiding rigid collision or fatigue damage to the first spring 605 and the second spring 606 due to excessive compression.

[0028] Furthermore, two cylinders 604 of the same size are provided and are arranged in parallel. The outer wall size of the cylinder 604 matches the inner wall size of the first spring 605 and the second spring 606. Through the arrangement of the cylinder 604 and the first spring 605 and the second spring 606, the cylinder 604 provides a stable axial movement track for the first spring 605 and the second spring 606 during use, strictly limiting the deformation of the first spring 605 and the second spring 606 in the vertical direction, effectively suppressing the torsion and displacement caused by lateral forces. The parallel layout of the two cylinders 604 forms a symmetrical support structure, which not only enhances the overall rigidity of the spring system, but also evenly distributes the spring force and avoids stress concentration at a single point.

[0029] Working Principle: When a person lies on the mattress, pressure originates from the padding 4, is distributed through multiple equidistant circular sponge blocks 5 to achieve load dispersion, and is precisely transmitted axially to the spring mechanism 6 within the circular groove 2. The precise fit design between the circular sponge blocks 5 and the circular groove 2 ensures that pressure is applied vertically and evenly to the spring mechanism 6, effectively avoiding lateral force interference. As a core guiding component, the outer wall of the cylinder 604 forms a high-precision sliding fit with the inner wall of the first spring 605, strictly limiting the spring deformation to the axial direction and effectively suppressing lateral offset and torsion. The collar 603 and the circular plate 602 constitute a protective constraint structure. On the one hand, they provide protection for the first spring 605, preventing it from puncturing the cloth bag 601 and the sponge pad 1. On the other hand, the circular plate 602 increases the spring's force-bearing area, optimizes the pressure transmission path, and improves structural stability. The sponge block 607 at the gap 6 acts as a buffer and stop when the spring is compressed to its limit. Through the setting of different spring mechanisms 6, the first spring 605 adopts a multi-coil design, which can generate more elastic potential energy conversions during the compression stroke. In the initial stage of force application, it can absorb human body pressure with a more delicate buffer gradient and effectively attenuate high-frequency vibrations. The second spring 606, on the other hand, adopts a fewer-coil design to form a high-rigidity mechanical structure. When the pressure continues to increase, it provides high-strength support with a low deformation rate, accurately responding to the bearing needs of key stress points of the human body. By switching between different spring mechanisms 6, user needs can be better met.

[0030] Although embodiments of the present invention 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 the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spring structure comprising a sponge pad (1), characterized in that: A circular groove (2) is provided on one side surface of the sponge pad (1), a bottom pad (3) is fixedly connected to one side surface of the sponge pad (1), an auxiliary pad (4) is fixedly connected to one side surface of the sponge pad (1), a circular sponge block (5) is fixedly connected to one side surface of the auxiliary pad (4), and a spring mechanism (6) is provided on the inner wall surface of the circular groove (2). The spring mechanism (6) includes a cloth bag (601), the outer wall surface of the cloth bag (601) is slidably connected to the inner wall surface of the circular groove (2), a circular piece (602) is slidably connected to the inner wall surface of the cloth bag (601), a collar (603) is fixedly connected to one side surface of the circular piece (602), a cylinder (604) is fixedly connected to one side surface of the collar (603), a first spring (605) is slidably connected to the outer wall surface of the cylinder (604), a second spring (606) is slidably connected to the outer wall surface of the cylinder (604), and a sponge ball (607) is slidably connected to the inner wall surface of the second spring (606).

2. The spring structure according to claim 1, characterized in that: The sponge pad (1), circular groove (2) and bottom pad (3) have the same cross-sectional dimensions. The sponge pad (1), circular groove (2) and bottom pad (3) are distributed in parallel. There are two spring mechanisms (6).

3. A spring structure according to claim 1, characterized in that: The circular sponge blocks (5) are provided in multiples of the same size and are distributed at equal distances along the side surface of the auxiliary pad (4) near the sponge pad (1). The outer wall size of the circular sponge blocks (5) matches the inner wall size of the circular groove (2).

4. A spring structure according to claim 1, characterized in that: The inner wall size of the circular groove (2) matches the outer wall size of the cloth bag (601), and the cloth bag (601) and the circular sponge block (5) are distributed in parallel.

5. A spring structure according to claim 1, characterized in that: The collar (603) and the disc (602) are provided in two of the same size, and the inner wall size of the collar (603) matches the outer wall size of the first spring (605) and the second spring (606).

6. A spring structure according to claim 1, characterized in that: The height of the sponge block (607) matches the distance between the two collars (603), and the central axis of the sponge block (607) matches the central axis of the first spring (605) and the second spring (606).

7. A spring structure according to claim 1, characterized in that: Two cylinders (604) of the same size are provided and are arranged in parallel. The outer wall size of the cylinder (604) matches the inner wall size of the first spring (605) and the second spring (606).

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