Silent edge structure of a mattress and a silent mattress

Abstract

The application discloses a mute surrounding edge structure of a mattress and a mute mattress, and belongs to the technical field of mattresses. The mute surrounding edge structure of the mattress comprises surrounding edge steels, supporting force springs and independent springs. The two surrounding edge steels are arranged in an upper and lower mode and surround the outer periphery of the mattress respectively. The independent springs are located in the inner periphery of the surrounding edge steels, and the upper and lower ends of the independent springs are respectively formed with supporting bottom rings. The surrounding edge steels are fixedly connected with the supporting bottom rings of the independent springs through fasteners. The supporting force springs are located between the two surrounding edge steels. The supporting force springs comprise rod portions which are arranged in parallel with the surrounding edge steels. The surrounding edge steels are fixedly connected with the rod portions of the supporting force springs through fasteners. The surrounding edge steels comprise inner cores and cladding layers outside the inner cores. The surrounding edge steels are arranged in a double-layer structure, and the outer sides of the surrounding edge steels are cladded with the cladding layers. The friction coefficient of the outer sides of the surrounding edge steels can be increased, the surrounding edge steels can play a role in preventing sliding, the axial direction sliding friction between the surrounding edge steels and the independent springs can be avoided, and the shaking and noise influence caused by the axial direction sliding friction can be avoided.

Description

Technical Field

[0001] This invention relates to mattresses, and more specifically, to a silent edge structure for a mattress, and also to a silent mattress having the silent edge structure. Background Technology

[0002] Current mattress products typically feature several springs installed in the center, surrounded by a steel edging. This edging provides auxiliary support, enhancing the structural stability of the mattress's outer edges and creating a stable, elastic support. Furthermore, support springs are installed around the perimeter of the mattress to further improve its elastic support performance.

[0003] Currently, the edge steel of mattresses is all exposed carbon steel, and the edge steel is fixed to the spring with fasteners (such as C-shaped nails). Loosening can easily occur between the edge steel and the spring. Under external force, the friction between the edge steel and the spring will produce some loosening and friction noise, which will affect the user's experience.

[0004] Therefore, a new solution is needed to address this problem. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a silent edge structure for a mattress and a silent mattress.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A silent edge structure for a mattress includes edge steel, support springs, and several independent springs. The edge steel is arranged in two sections, upper and lower, and surrounds the outer perimeter of the mattress. The independent springs are located on the inner perimeter of the edge steel, and support base rings are formed at their upper and lower ends. The edge steel is fixedly connected to the support base rings of the independent springs by fasteners. The support springs are located between the two edge steel sections and include rods arranged parallel to the edge steel. The edge steel is fixedly connected to the rods of the support springs by fasteners. The edge steel includes an inner core and a covering layer outside the inner core.

[0008] The present invention is further configured such that the inner core of the edging steel is a steel inner core, the covering layer is a rubber or plastic covering material, and the fastener is a C-shaped nail.

[0009] The invention is further configured to include several connectors, each connector comprising two C-shaped buckles and a connecting rod. The C-shaped buckles have notches, and arc-shaped portions one and two are formed on both sides of the notches. The connecting rod is located between the two C-shaped buckles, and arc-shaped extensions are formed at both ends of the connecting rod, which are fixedly connected to the arc-shaped portions one. The C-shaped buckles are fastened to the edging steel and located on the outer periphery of the supporting bottom ring.

[0010] The present invention is further configured such that fasteners are fitted around the outer periphery of the surrounding steel, the supporting bottom ring and the connecting rod, and the supporting bottom ring is embedded in the limiting recess of the arc-shaped part with a back notch, and is located between the outer side of the C-shaped buckle and the connecting rod.

[0011] The present invention is further configured such that a gap is formed between the connecting rod and the surrounding steel, the fastener presses the connecting rod to elastically bend and deform towards the surrounding steel, and the C-shaped buckles at both ends of the connecting rod can elastically move towards the middle.

[0012] The invention is further configured such that the outer diameter of the rod portion of the support spring is greater than the width of the notch, the rod portion of the support spring is embedded in the notch, and abuts against the outer wall of the edging steel, the first arc portion, and the second arc portion respectively; the fasteners together fit the edging steel, the support bottom ring, the first connecting rod, and the rod portion of the support spring inside.

[0013] The invention is further configured to include a limiting member one and a limiting member two, both of which are fastened and installed on the outer periphery of the edging steel and located between two C-shaped buckles; the limiting member one and the limiting member two can respectively abut against the outer periphery of the supporting bottom ring.

[0014] The present invention is further configured such that the limiting member is C-shaped, fastened to the outer periphery of the edging steel, and can slide and adjust along the length direction of the edging steel. One side of the limiting member is blocked and limited by the C-shaped buckle, and the other side is used to press and limit against the outer periphery of the supporting bottom ring.

[0015] The present invention is further configured such that the limiting member two includes a limiting sleeve one, a limiting sleeve two, and a plurality of arc-shaped elastic strips. The limiting sleeve one and the limiting sleeve two are both C-shaped, fastened to the outer periphery of the edging steel, and can slide and adjust along the length direction of the edging steel. The two ends of the arc-shaped elastic strips are respectively fixedly connected to the limiting sleeve one and the limiting sleeve two. The middle of the arc-shaped elastic strips is arc-shaped and raised outward. Each arc-shaped elastic strip is evenly distributed around the edging steel.

[0016] The present invention is further configured such that the second limiting sleeve is blocked and limited by a C-shaped buckle, and the first limiting sleeve can be pressed and limited against the outer periphery of the supporting bottom ring.

[0017] The present invention is further configured such that the perimeter steel forms a first fixed position between the limiting sleeve of the limiting member one and the limiting member two, and the fastener encloses the perimeter steel, the supporting bottom ring, the rod part of the support spring and the connecting rod one in the first fixed position.

[0018] The present invention is further configured such that the edging steel forms a second fixed position between the limiting sleeve one and the limiting sleeve two, and the fastener surrounds the edging steel, the rod of the support spring and each arc-shaped elastic strip in the second fixed position. The fastener presses the middle section of the arc-shaped elastic strip against the edging steel, and the two ends of the arc-shaped elastic strip extend along the length direction, which can push the limiting sleeve one to press against the outer periphery of the support bottom ring for limiting, and the limiting sleeve two to block and limit the C-shaped buckle.

[0019] The invention is further configured such that a connecting rod is fixedly connected between the arc-shaped portions of the two C-shaped buckles, and the connecting rod is arranged parallel to and in contact with the surrounding steel.

[0020] The present invention also provides a silent mattress, including the silent edge structure of the mattress as described above, which can be fastened and fixed between the edge steel and the independent springs, reducing loosening and slippage between the independent springs and the edge steel, and reducing abnormal noises caused by slippage and loosening at the connection of the edge steel.

[0021] In summary, the present invention has the following beneficial effects:

[0022] By setting the edging steel as a double-layer structure, with a metal inner core in the center and a covering layer on the outside, the covering layer on the outer perimeter of the edging steel can produce a certain degree of elastic deformation, which can play a role in preventing loosening. It can also increase the friction coefficient on the outer side of the edging steel, which can play a role in preventing slippage and avoid the axial slippage friction between the edging steel and the independent spring, thus preventing the shaking and noise caused by these issues.

[0023] By setting up connectors, the connection stability between the edging steel and the support base ring of the independent spring can be improved. The fasteners fit together the edging steel, the support base ring, the connecting rod, and the rod of the support spring. The fasteners can apply a tightening force to the edging steel and the support base ring, while the two C-shaped buckles can block the middle, forming three support points, thereby improving the tightening stability of the edging steel and the support base ring. Attached Figure Description

[0024] Figure 1 This is a perspective view of the sound-absorbing edge structure of the mattress in Example 1;

[0025] Figure 2 This is a schematic diagram of the cross-section of the perimeter steel in Example 1;

[0026] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 4 This is a perspective view of the connector in Embodiment 1;

[0028] Figure 5 This is a cross-sectional schematic diagram of the sound-absorbing edge structure of the mattress in Embodiment 1, without showing fasteners.

[0029] Figure 6 This is a cross-sectional schematic diagram of the sound-absorbing edge structure of the mattress in Example 1;

[0030] Figure 7 This is a schematic diagram of the stress structure of the edging steel, supporting bottom ring, and C-shaped buckle in Example 1;

[0031] Figure 8 This is a first perspective view of the sound-absorbing edge structure of the mattress in Embodiment 2;

[0032] Figure 9 This is a schematic diagram of the structure of the connector, limiting member one, and limiting member two in Embodiment 2;

[0033] Figure 10 This is a second perspective view of the silent edge structure of the mattress in Example 2.

[0034] Reference numerals: First fixed position 100; Second fixed position 200; Edge steel 1; Inner core 11; Covering layer 12; Independent spring 2; Support bottom ring 21; Fixed part 211; Transition part 212; Support spring 3; Rod part 31; Connector 4; Limiting part 401; Elastic part 402; C-shaped buckle 41; Arc-shaped part one 411; Limiting recess 4111; Arc-shaped part two 412; Notch 413; Connecting rod one 42; Arc-shaped extension part 43; Connecting rod two 44; Fastener 5; Limiting part one 6; Limiting part two 7; Limiting sleeve one 71; Limiting sleeve two 72; Arc-shaped elastic strip 73. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0036] Example 1

[0037] This embodiment discloses a silent edge structure for a mattress, referring to... Figure 1-7As shown, the mattress includes a rim steel 1, support springs 3, and several independent springs 2. The rim steel 1 has two sections, one at the top and one at the bottom. The outline of the rim steel 1 roughly matches the outer perimeter of the mattress and surrounds the outer perimeter of the mattress. The two rim steel sections 1 are located on the top and bottom sides of the mattress, respectively, and mainly provide auxiliary support for the edge of the mattress and provide stability support for the independent springs 2 at the edge.

[0038] Reference Figure 1 As shown, the independent spring 2 is located on the inner circumference of the surrounding steel 1. The upper and lower ends of the independent spring 2 are respectively formed with supporting bottom rings 21, which have a roughly complete circular structure.

[0039] During installation, the edging steel 1 is fixedly connected to the support base ring 21 of the independent spring 2 by fasteners 5. Specifically, the fasteners 5 are C-shaped nails, which can fix the pressure feet of each component on the inner circumference, thereby fixing the edging steel 1 to the support base ring 21 of the independent spring 2.

[0040] To improve the stability of the edge steel 1 after it is fixed, in this embodiment, the edge steel 1 adopts a double-layer structure. (Refer to...) Figure 2 As shown, the edging steel 1 includes an inner core 11 and a covering layer 12 outside the inner core 11. The inner core 11 of the edging steel 1 is made of steel and mainly serves a supporting function, which is the same as that of traditional edging steel. The covering layer 12 is made of rubber or plastic material, which has greater elasticity than the inner core 11. After being fixed, the covering layer 12 on the outer periphery of the edging steel 1 can produce a certain elastic deformation, which can play a role in preventing loosening and can increase the friction coefficient on the outer side of the edging steel 1, which can play a role in preventing slippage and avoid axial slippage friction between the edging steel 1 and the independent spring 2, thus preventing shaking and noise.

[0041] Reference Figure 1 As shown, in this embodiment, several support springs 3 are also provided, and each support spring 3 is distributed in the side frame of the mattress. The support springs 3 are installed between the two edge steels 1. The support springs 3 have a double M-shaped or double M-shaped structure, including two parallel rods 31. The two rods 31 are elastically supported by the middle component, and can elastically bear the load in the vertical direction.

[0042] The edging steel 1 is fixedly connected to the rod 31 of the support spring 3 by fasteners 5, which can fix the support spring 3. During fixation, the outer covering layer 12 of the edging steel 1 can increase the frictional resistance between it and the support spring 3, and the relative position of the two can be maintained by the extrusion deformation of the covering layer 12, thereby improving the overall connection stability.

[0043] Furthermore, the support spring 3 can also adopt a double-layer structure, using the same inner core 11 and covering layer 12 structure as the edging steel 1. The middle uses an elastic inner core 11, and the outer side is covered with an elastic covering layer 12, which serves to buffer and prevent loosening.

[0044] Furthermore, referring to Figures 3-6 As shown, in this embodiment, several connecting parts 4 are also installed between the edging steel 1 and the independent spring 2. The connecting parts 4 are made of bent steel bars to form a curved shape.

[0045] Specifically, the connector 4 includes two C-shaped buckles 41 and a connecting rod 42. The C-shaped buckles 41 have notches 413, and arc-shaped portions 411 and 412 are formed on both sides of the notches 413 respectively. The inner circumferential contour of the C-shaped buckles 41 is adapted to the outer circumferential contour of the edging steel 1. The opening size at the notches 413 is slightly smaller than that of the edging steel 1. Along the guide of the arc-shaped portions on both sides, the edging steel 1 can be inserted into the inner side of the C-shaped buckles 41, so as to achieve a tight engagement between the C-shaped buckles 41 and the edging steel 1.

[0046] Connecting rod 42 is located between two C-shaped buckles 41. Both ends of connecting rod 42 have arc-shaped extensions 43, which are fixedly connected to arc-shaped parts 411. During installation, the two C-shaped buckles 41 are fastened to the circumferential steel 1 and located on the outer periphery of the support base ring 21, abutting against the outer periphery of the support base ring 21.

[0047] A first fixed position 100 is formed between the two C-shaped buckles 41, and the fastener 5 is used to clamp and fix the components at the first fixed position 100. The fastener 5 can enclose the edge steel 1, the support bottom ring 21 and the connecting rod 42 to form a clamped and fixed state, and can fix the edge steel 1 together with the independent spring 2 and the support spring 3 at that location to form a stable connection structure, reducing the loosening and slippage between the components.

[0048] Reference Figure 5 , Figure 6 As shown, at the installation position of connector 4, a limiting recess 4111 is formed on the side of the arc-shaped portion 411 facing away from the notch 413, and the support bottom ring 21 is embedded in the limiting recess 4111. In the cross-sectional direction, part of the support bottom ring 21 is located between the outer side of the C-shaped buckle 41 and the connecting rod 42, and the three of them press against each other to form a circumferential limiting.

[0049] The outer diameter of the rod portion 31 of the support spring 3 is larger than the width of the notch 413. When the rod portion 31 of the support spring 3 is assembled with the connector 4, the rod portion 31 can be inserted into the notch 413 and abut against the outer wall of the circumferential steel 1, the first arc portion 411 and the second arc portion 412 respectively. In the cross-sectional direction, the rod portion 31 of the support spring 3 has at least three limiting points, which can ensure the fastening stability of the rod portion 31 of the support spring 3.

[0050] Reference Figure 5 , Figure 6 As shown, the connecting rod 42 and the arc-shaped extension 43 can block the support bottom ring 21 of the independent spring 2 and the rod part 31 of the support spring 3, thus preventing the support bottom ring 21 from directly contacting the rod part 31. Multiple support points are formed in the length direction of the edging steel 1 to maintain the stability of the connection position.

[0051] Reference Figure 7 As shown, a fixing part 211 is formed at the connection between the supporting bottom ring 21 and the surrounding steel 1. Transition parts 212 are formed on both sides of the fixing part 211, and the transition parts 212 are bent away from the surrounding steel 1. The fixing part 211 of the supporting bottom ring 21 and the surrounding steel 1 approach and abut against each other, and their surfaces abut against each other. The fixing part 211 is fixed by fasteners 5 at the position of the fixing part 211. The C-shaped buckle 41 of the connector 4 is embedded between the transition part 212 of the surrounding steel 1 and the supporting bottom ring 21.

[0052] The fastener 5 encloses the edging steel 1, the support bottom ring 21, the connecting rod 42, and the rod portion 31 of the support spring 3. The fastener 5 can apply a tightening force to the edging steel 1 and the support bottom ring 21, while the two C-shaped buckles 41 can block the middle, forming three support points, thereby improving the tightening stability of the edging steel 1 and the support bottom ring 21.

[0053] Reference Figure 4 As shown, a connecting rod 42 is also connected between the two C-shaped buckles 41. An arc-shaped extension 43 is connected between the end of the connecting rod 42 and the arc-shaped part 411 of the C-shaped buckle 41, so that the connecting rod 42 can extend in a direction away from the edge steel 1, so that a certain elastic buffer gap is formed between the connecting rod 42 and the edge steel 1.

[0054] When fastener 5 is in place, it can enclose the edging steel 1, the supporting bottom ring 21, the connecting rod 42, and the rod portion 31 of the support spring 3. Because there is a gap between the connecting rod 42 and the edging steel 1, the connecting rod 42 has a certain degree of elastic bending performance. Under the pressure of fastener 5, it can compress the middle of the connecting rod 42 towards the edging steel 1, causing it to bend elastically. After bending, the two ends of the connecting rod 42 will slightly move closer together, meaning the two C-shaped buckles 41 can elastically move towards the center. The C-shaped buckles 41 will further move towards the narrow gap between the edging steel 1 and the supporting bottom ring 21, further increasing the pressure between the C-shaped buckles 41, the edging steel 1, and the supporting bottom ring 21 at the transition portion 212. This improves the connection stability of the connector 4, the supporting bottom ring 21, and the edging steel 1, further preventing the edging steel 1 and the supporting bottom ring 21 from loosening or slipping due to length changes.

[0055] This embodiment also discloses a silent mattress, including the silent edge structure of the mattress as described above, which can be fastened between the edge steel 1 and the independent spring 2, reducing the loosening and slippage between the independent spring 2 and the edge steel 1, and reducing the abnormal noise caused by slippage and loosening at the connection of the edge steel 1.

[0056] Example 2

[0057] This embodiment discloses a silent edge structure for a mattress, based on the above-described embodiment one, and further referring to 8- Figure 10 Please provide a detailed explanation.

[0058] This embodiment also includes a first limiting member 6 and a second limiting member 7. Both the first limiting member 6 and the second limiting member 7 are fastened and installed on the outer periphery of the edging steel 1 and are located between the two C-shaped buckles 41. The first limiting member 6 and the second limiting member 7 can respectively abut against the outer periphery of the supporting bottom ring 21, forming two limiting points on the inner side of the C-shaped buckles 41, which can form a two-end support and restriction with the outer periphery of the supporting bottom ring 21.

[0059] Specifically, the first limiting member 6 is C-shaped, fastened to the outer perimeter of the surrounding steel 1, and can slide and adjust along the length of the surrounding steel 1. One side of the first limiting member 6 is blocked and limited by the C-shaped buckle 41, and the other side is used to press and limit against the outer perimeter of the supporting bottom ring 21. The second limiting member 7 includes a first limiting sleeve 71, a second limiting sleeve 72, and several arc-shaped elastic strips 73. Both the first limiting sleeve 71 and the second limiting sleeve 72 are C-shaped, also fastened to the outer perimeter of the surrounding steel 1, and can slide and adjust along the length of the surrounding steel 1.

[0060] Limiting component 6, limiting sleeve 71 and limiting sleeve 72 are all made of plastic or rubber. Compared with metal parts, their surfaces have a certain degree of elasticity. Under pressure, limiting component 6, limiting sleeve 71 and limiting sleeve 72 can produce a certain degree of elastic deformation.

[0061] The arc-shaped elastic strip 73 is an elastic arc-shaped metal sheet with both ends fixedly connected to the first limiting sleeve 71 and the second limiting sleeve 72 respectively. The two ends of the arc-shaped elastic strip 73 can be pre-embedded in the first limiting sleeve 71 and the second limiting sleeve 72, so that the second limiting member 7 can be formed into a whole.

[0062] The arc-shaped elastic strip 73 bulges outward from the middle, and each arc-shaped elastic strip 73 is evenly distributed around the edging steel 1, forming multiple elastic connections on the outer perimeter of the edging steel 1. During the connection process, the end of the limiting sleeve 2 72 can be blocked and limited by the C-shaped buckle 41, and the limiting sleeve 1 71 can press against the outer perimeter of the supporting bottom ring 21 for limitation.

[0063] Specifically, the edging steel 1 forms a first fixed position 100 between the limiting sleeve 71 of the first limiting member 6 and the second limiting member 7, and the edging steel 1 forms a second fixed position 200 between the limiting sleeve 71 and the second limiting sleeve 72. Two fixed positions are formed at the position of each connector 4, and each fixed position is fixed by fasteners 5.

[0064] In the first fixed position 100, the fastener 5 encloses the edging steel 1, the supporting bottom ring 21, the rod portion 31 of the support spring 3 and the connecting rod 42; in the second fixed position 200, the fastener 5 encloses the edging steel 1, the rod portion 31 of the support spring 3 and each arc-shaped elastic strip 73.

[0065] At the second fixed position 200, the fastener 5 can compress the middle section of the arc-shaped elastic strip 73 to abut against the surrounding steel 1. The two ends of the arc-shaped elastic strip 73 extend along the length direction, which can push the limiting sleeve 1 71 and the outer periphery of the support bottom ring 21 to press and limit. The limiting sleeve 2 7 and the C-shaped buckle 41 block and limit. The limiting sleeve 2 7 can extend in the length direction, and the limiting sleeve 1 71 and the limiting sleeve 2 72 can press against the support bottom ring 21 and the C-shaped buckle 41 to achieve fastening and fixing of the connecting piece 4.

[0066] Furthermore, a connecting rod 44 is fixedly connected between the arcuate portions 412 of the two C-shaped buckles 41. The connecting rod 44 is parallel to and fits against the surrounding steel 1. The two C-shaped buckles 41 are supported by the connecting rod 42 and the connecting rod 44, which improves the overall strength of the connector 4.

[0067] During the fixing process, the connecting rod 44, the surrounding steel 1, and the rod portion 31 of the support spring 3 axially press against each other, and the mutual abutment of the three can maintain the stability of the cross-sectional direction of each rod. Moreover, after the fastener 5 is wrapped, the cross-sections of the three can be compressed, improving the fastening stability of the connecting piece 4.

[0068] Specifically, during the fixing process, fasteners 5 are first pre-installed at the first fixing position 100, which is in a loose state, allowing each component to be adjusted to a certain extent along the length of the edging steel 1; then, fasteners 5 are installed at the second fixing position 200, which enclose the edging steel 1, the rod 31 of the support spring 3, and the arc-shaped elastic strip 73 of the limiting member 7, and achieve enclosed and pressed tightly; then, the fasteners 5 at the first fixing position 100 are further tightened, and the first fixing position 100 is pressed and fixed.

[0069] Example 3

[0070] This embodiment discloses a silent edge structure for a mattress, which is described in detail based on the above embodiment two.

[0071] In this embodiment, during the fixing process of the connector 4, after the fastener 5 is fixed, the connector 4 is then electromagnetically heated. During the heating process, the inner core 11 of the edging steel 1, the rod 31 of the support spring 3, and other components will be heated and partially melted. After the limiting part 6, the limiting sleeve 71, the limiting sleeve 72, and the covering layer 12 are partially melted, they can stick together to each other, further connecting the connection to form a whole, thereby avoiding abnormal noises such as delivery and slippage at the connection.

[0072] Then, fasteners 5 are added at the first fixed position 100 and the second fixed position 200 to make the connector 4 and each component press tightly together.

[0073] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A silent edge structure for a mattress, characterized in that, The mattress includes a perimeter steel (1), a support spring (3), and several independent springs (2). The perimeter steel (1) is arranged in two sections, upper and lower, and surrounds the outer perimeter of the mattress. The independent springs (2) are located on the inner perimeter of the perimeter steel (1). Supporting bottom rings (21) are formed at the upper and lower ends of the independent springs (2). The perimeter steel (1) is fixedly connected to the supporting bottom rings (21) of the independent springs (2) by fasteners (5). The support springs (3) are located between the two perimeter steel sections (1). The support springs (3) include a rod (31) arranged parallel to the perimeter steel (1). The perimeter steel (1) is fixedly connected to the rod (31) of the support springs (3) by fasteners (5). The perimeter steel (1) includes an inner core (11) in the middle and a covering layer (12) outside the inner core (11). It also includes several connectors (4), each connector (4) including two C-shaped buckles (41) and a connecting rod (42). The C-shaped buckles (41) have notches (413). The C-shaped buckles (41) form arc-shaped parts one (411) and arc-shaped parts two (412) on both sides of the notches (413). The connecting rod (42) is located between the two C-shaped buckles (41). Both ends of the connecting rod (42) have arc-shaped extensions (43), which are fixedly connected to the arc-shaped parts one (411). The C-shaped buckles (41) are fastened to the edging steel (1) and located on the outer periphery of the supporting bottom ring (21). Fasteners (5) are fitted around the outer periphery of the surrounding steel (1), the support bottom ring (21) and the connecting rod (42). The support bottom ring (21) is embedded in the limiting recess (4111) of the arc-shaped part (411) facing away from the notch (413) and is located between the outer side of the C-shaped buckle (41) and the connecting rod (42).

2. The sound-absorbing edge structure of the mattress according to claim 1, characterized in that, The inner core (11) of the edging steel (1) is a steel core, the covering layer (12) is a rubber or plastic covering material, and the fastener (5) is a C-shaped nail.

3. The sound-absorbing edge structure of the mattress according to claim 1, characterized in that, A gap is formed between the connecting rod (42) and the surrounding steel (1). The fastener (5) presses the connecting rod (42) to bend elastically toward the surrounding steel (1), and the C-shaped buckles (41) at both ends of the connecting rod (42) can elastically move toward the middle.

4. The sound-absorbing edge structure of the mattress according to claim 1, characterized in that, The outer diameter of the rod portion (31) of the support spring (3) is larger than the width of the notch (413). The rod portion (31) of the support spring (3) is embedded in the notch (413) and abuts against the outer wall of the edging steel (1), the first arc portion (411) and the second arc portion (412) respectively. The fastener (5) fits the edging steel (1), the support bottom ring (21), the first connecting rod (42) and the rod portion (31) of the support spring (3) together inside.

5. The sound-absorbing edge structure of the mattress according to claim 1, characterized in that, It also includes a first limiting member (6) and a second limiting member (7), which are fastened to the outer periphery of the edging steel (1) and located between two C-shaped buckles (41); the first limiting member (6) and the second limiting member (7) can respectively abut against the outer periphery of the supporting bottom ring (21).

6. The sound-absorbing edge structure of the mattress according to claim 5, characterized in that, The limiting member (6) is C-shaped and is fastened to the outer periphery of the edging steel (1). It can slide and adjust along the length of the edging steel (1). One side of the limiting member (6) is blocked and limited by the C-shaped buckle (41), and the other side is used to press against the outer periphery of the supporting bottom ring (21) for limitation. The second limiting component (7) includes a first limiting sleeve (71), a second limiting sleeve (72), and several arc-shaped elastic strips (73). The first limiting sleeve (71) and the second limiting sleeve (72) are both C-shaped and are fastened to the outer perimeter of the edging steel (1). They can slide and adjust along the length of the edging steel (1). The two ends of the arc-shaped elastic strips (73) are fixedly connected to the first limiting sleeve (71) and the second limiting sleeve (72) respectively. The middle of the arc-shaped elastic strips (73) is arc-shaped and raised outward. Each arc-shaped elastic strip (73) is evenly distributed around the edging steel (1). The second limiting sleeve (72) is blocked and limited by the C-shaped buckle (41), and the first limiting sleeve (71) can press against the outer periphery of the supporting bottom ring (21) for limitation.

7. The sound-absorbing edge structure of the mattress according to claim 6, characterized in that, The surrounding steel (1) forms a first fixed position (100) between the limiting sleeve (71) of the limiting member one (6) and the limiting member two (7), and the fastener (5) encloses the surrounding steel (1), the supporting bottom ring (21), the rod part (31) of the support spring (3) and the connecting rod one (42) in the first fixed position (100); The surrounding steel (1) forms a second fixed position (200) between the first limiting sleeve (71) and the second limiting sleeve (72). The fastener (5) encloses the surrounding steel (1), the rod part (31) of the support spring (3) and each arc-shaped elastic strip (73) in the second fixed position (200). The fastener (5) presses the middle section of the arc-shaped elastic strip (73) against the surrounding steel (1). The two ends of the arc-shaped elastic strip (73) extend along the length direction, which can push the first limiting sleeve (71) against the outer periphery of the support bottom ring (21) for limiting. The second limiting sleeve (72) and the C-shaped buckle (41) block the limiting.

8. The sound-absorbing edge structure of the mattress according to claim 6, characterized in that, A connecting rod (44) is fixedly connected between the arc-shaped portions (412) of the two C-shaped buckles (41). The connecting rod (44) is arranged parallel to the edging steel (1) and fits against each other.

9. A silent mattress, characterized in that, Its features are, Includes the silent edge structure of the mattress as described in any one of claims 1-8.

Images