Two-section spring with four circular sections and mattress

Abstract

The utility model relates to the technical field of spring beds, in particular to a two-section four-circle-section spring and mattress, which comprises a spring, the spring is formed by winding a steel wire into a whole spiral shape, and the spring comprises a connecting part, and a first pressure-bearing part and a second pressure-bearing part which are respectively connected with two ends of the connecting part; the ring number of the first pressure-bearing part is the same as that of the second pressure-bearing part, the spring pitch of the first pressure-bearing part is larger than that of the second pressure-bearing part, and the outer diameter of the connecting part is smaller than that of the first pressure-bearing part and that of the second pressure-bearing part. The two-section four-circular-section spring is used, the front face and the back face of the mattress have different sleeping feelings, the requirements of more people for the mattress can be met, the practicability of the mattress is effectively improved, meanwhile, due to the fact that the spring is made of four-circular-section steel wires, materials are effectively saved on the premise that the overall resilience force is improved, and the cost is reduced. And the purposes of energy conservation and emission reduction can be indirectly achieved while the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring bed technical field, concretely is a two -segment type four round section spring and mattress. BACKGROUND

[0002] Spring is the special metal line made with elastic part, can moderate impact or vibration, store energy etc., the spring at present can be divided into compression spring, torsion spring, air spring etc. according to its structure. The general spiral spring is used in the field of furniture mattress at present, the processing material cross section of this kind of spring generally adopts circle, theoretically, the greater spring material cross section area, the better elasticity, the greater bearing, the better support and resilience, but the weight is also heavier, and the cost is also higher, the field of mattress is all using this kind of practice at present, and the resilience and support of the spring top and bottom produced are same, so the mattress produced will be relatively heavy, and it is not conducive to controlling production cost. UTILITARIAN CONTENT

[0003] The utility model is to provide a two -segment type four round section spring and mattress to solve the problem in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A two -segment type four round section spring, comprising:

[0006] Spring, the spring is wound by steel wire and is spiral as a whole, and the spring includes a connecting portion and a first pressure receiving portion and a second pressure receiving portion connected with both ends of the connecting portion respectively;

[0007] The number of rings of the first pressure receiving portion and the second pressure receiving portion is same, the spring pitch of the first pressure receiving portion is greater than the spring pitch of the second pressure receiving portion, and the outer diameter of the connecting portion is less than the outer diameter of the first pressure receiving portion and the second pressure receiving portion.

[0008] Further, the first pressure receiving portion and the second pressure receiving portion are olive-shaped from top to bottom.

[0009] Further, the outer end of the first pressure receiving portion has a first caliber portion, and the outer end of the second pressure receiving portion has a second caliber portion.

[0010] Further, the steel wire head of the first caliber portion and the second caliber portion faces inwards.

[0011] Further, the caliber of the first caliber portion and the second caliber portion is less than the caliber of the second ring.

[0012] Further, the steel wire is a steel wire with an excircle as a cross section, which is formed by wire drawing, the cross section has four excircles, the four excircle cut points are evenly distributed on the excircle of the steel wire, and there is a groove between the excircles.

[0013] To achieve the above object, the utility model provides the following technical scheme:

[0014] A mattress, comprising a plurality of two-section four-circle cross-section springs and cloth bags, the cloth bag is used for wrapping the two-section four-circle cross-section spring in the cloth bag, so that the plurality of two-section four-circle cross-section springs are arranged longitudinally and transversely to form a spring bed net.

[0015] Further, the spring bed net is provided with a comfort layer on the upper and lower end faces, and is provided with a side edge surrounding strip around, the comfort layer and the side edge surrounding strip are connected through a webbing, and the spring bed net is wrapped to form a spring mattress.

[0016] Further, the spring bed net is a cuboid.

[0017] Further, the material of the cloth bag is non-woven fabric or cotton cloth.

[0018] Compared with the prior art, the utility model has the beneficial effects that:

[0019] The two-section four-circle cross-section spring has a first pressure bearing part, a second pressure bearing part and a connecting part, wherein the pitch of the first pressure bearing part is greater than the pitch of the second pressure bearing part, so that the compression ratio of the first pressure bearing part is greater than the compression ratio of the second pressure bearing part after the two-section four-circle cross-section spring is loaded into the cloth bag, and therefore the supporting force of the first pressure bearing part is greater than the supporting force of the second pressure bearing part, so that the spring has two different hardnesses; in addition, the two-section four-circle cross-section spring is provided with the connecting part, and the outer diameter of the connecting part is the smallest in the spring, so that the friction between the first pressure bearing part and the second pressure bearing part when the spring is under pressure can be effectively reduced, and the generation of abnormal sound is reduced.

[0020] The utility model discloses a mattress, comprising a plurality of two-section four-circle cross-section springs and cloth bags, the cloth bag is through ultrasonic welding or adopts the way of sewing and is wrapped in the spring, makes its mutual interference, the cloth bag adopts non -woven fabric or cotton cloth, and a plurality of bagged two-section four-circle cross-section springs are combined into a spring bed net and are arranged longitudinally and transversely, and after adding a comfort layer on the surface, the mattress product can be processed. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structure diagram of two-section four-circle cross-section spring of the utility model.

[0022] Figure 2 It is the schematic diagram of each ring diameter structure of first pressure bearing part of the utility model.

[0023] Figure 3 It is the sectional view of steel wire of the utility model.

[0024] Figure 4 It is the schematic diagram of two-section four-circle sectional spring sleeve into cloth bag of the utility model.

[0025] Figure 5 It is the schematic diagram of two-section four-circle sectional spring into spring bed net structure of the utility model.

[0026] Figure 6 It is the schematic diagram of mattress structure of the utility model.

[0027] In the figure: 1-spring, 2-first pressure bearing part, 3-second pressure bearing part, 4-connection part, 5-first caliber part, 6-second caliber part, 7-steel wire, 8-groove, 9-spring bed net, 10-cloth bag, 11-comfort layer, 12-side edge strip, 13-weaving tape. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] In the description of the utility model, it should be explained that the terms "upper end", "lower end", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "installation", "set with", "sleeve set with", "sleeve joint", "connection" and so on, should do broad sense understanding, for example "connection", can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two elements inside the communication.For the ordinary skill in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0031] Please refer to Figures 1 to 6 The utility model provides a technical scheme:

[0032] A two-section four-circle cross-section spring is applied to the field of soft furniture manufacturing, and compared with the traditional circular cross-section spring, the four-circle cross-section spring has the advantages of strong compression resistance and less material, can make the spring have better supporting force and resilience, and meanwhile, the spring is designed with two hardnesses, and the mattress produced by using the spring can meet the needs of different people for the hardness of the mattress, effectively improves the experience and comfort of users.

[0033] Another purpose of the utility model is to solve the above-mentioned problems in the prior art, provide a two-section four-circle cross-section spring mattress, the front and back of the mattress have different softness and hardness, can give users different sleeping experience, also has better resilience and comfort, and can effectively improve the practicability of the spring mattress.

[0034] A two-section four-circle cross-section spring, including spring 1, spring 1 is wound by steel wire 7 and presents spiral shape as a whole, and the steel wire 7 is a steel wire with an excircle as a cross section and is processed into shape by wire drawing, the cross section of the steel wire 7 presents plum blossom shape as shown in Figure 3 The cross section of the steel wire 7 has four excircles as shown in Figure 3 The steel wire has four excircle cut points a, and the four excircle cut points a are evenly distributed on the excircle b of the steel wire 7, and the excircle of the steel wire is designed with a groove 8 between the excircles, which can effectively improve the anti-twisting ability of the steel wire 7 and improve the resilience of the spring.

[0035] It needs to be explained that when the prior art adopts a circular spring material, the cross section of the circular cross section is similar to the cross section of the excircle b. Therefore, the steel wire of the spring 1 of the utility model is designed in the form of four-circle excircle, and under the premise of the same steel wire outer diameter, the cross-sectional area of the ordinary circular cross section is greater than the area of the four-circle excircle cross section, and under the premise that the metal wire material is unchanged, the total weight of the four-circle cross-section steel wire used in the utility model is less than the weight of the ordinary circular cross-section steel wire of the same length, so that the use amount of the steel wire is reduced when the spring is made of the four-circle cross-section steel wire, and the material cost is effectively reduced.

[0036] In the premise of saving material, four circular cross-section spring has four grooves 8 design, after processing into spring 1, can effectively improve the spring torsional resistance, enhance the spring 1 resilience, make the spring has better elasticity.

[0037] For example: the diameter of the circumscribed circle of the four circular spring cross-section is 2.5mm, and the diameter of each circumscribed circle is 1mm. After calculation, the cross-sectional area of the spring is 3.6231mm 2 ; the area of the ordinary diameter 2.5mm circular cross-section is 4.9087mm 2 Therefore, under the premise of the same cross-sectional diameter, the four circular cross-section spring is less material than the ordinary circular cross-section spring, and the weight is lighter. The test shows that the supporting force and resilience of the four circular cross-section spring are basically the same as those of the ordinary circular cross-section spring.

[0038] The body of the spring 1 is spiral, including a first pressure receiving part 2, a second pressure receiving part 3 and a connecting part 4. The first pressure receiving part 2 and the second pressure receiving part 3 are used as support and are the first elastic part and the second elastic part of the spring 1. Both parts are spiral, and the number of rings of the first pressure receiving part 2 and the second pressure receiving part 3 is the same. The spring pitch of the first pressure receiving part 2 is greater than that of the second pressure receiving part 3. The connecting part 4 is the connection between the first pressure receiving part 2 and the second pressure receiving part 3, and its outer diameter is smaller than that of the first pressure receiving part 2 and the second pressure receiving part 3. When the spring is compressed under force, the first pressure receiving part 2 has stronger supporting force due to the larger pitch of each ring, and the second pressure receiving part 3 has smaller supporting force than the first pressure receiving part 2 due to the smaller pitch of each ring. Therefore, the spring has two different supporting forces.

[0039] The connecting part 4 is the connection between the first pressure receiving part 2 and the second pressure receiving part 3, which is the transition zone of the first pressure receiving part 2 and the second pressure receiving part 3. In the whole spring 1, the outer diameter of this part is the smallest to prevent the friction between the metal rings of the first pressure receiving part 2 and the second pressure receiving part 3 from producing sound when the spring 1 is compressed under force. In addition, in order to ensure that the whole spring 1 is formed in accordance with the requirements, the first pressure receiving part 2 and the second pressure receiving part 3 need to be olive-shaped (i.e. large in the middle and small at both ends). The first caliber (or diameter, outer diameter) of the first pressure receiving part 2 / first caliber part 5 and the second pressure receiving part 3 / second caliber part 6 of the spring 1 is smaller than the caliber (or diameter, outer diameter) of the second ring to prevent the friction between the upper and lower rings from producing abnormal sound when the spring is compressed. Moreover, the steel wire heads of the first caliber part 5 and the second caliber part 6 are inward, which can effectively prevent the steel wire from protruding and hurting people when producing finished mattress.

[0040] For example: Figure 2As shown, since the first pressure bearing part 2 and the second pressure bearing part 3 are olive-shaped (that is, large in the middle and small at both ends), the diameters of the parts of the first pressure bearing part 2 are described: the outermost first ring is the caliber of the first caliber part 5, the caliber of the second ring is d2 from top to bottom, the caliber of the third ring is d3, and the caliber of the fourth ring near the connecting part 4 is d4, of which the caliber d1 is the smallest, and the relationship between the calibers d2, d3 and d4 is: d2=d3, d2, d3>d4.

[0041] Another purpose of the utility model is realized through the following technical scheme:

[0042] A mattress with two kinds of hardness, comprising a plurality of two-section four-circle cross-section springs and cloth bags, each cloth bag 10 wraps each two-section four-circle cross-section spring in the cloth bag 10 at a certain compression ratio, the cloth bag 10 is non-woven fabric or cotton cloth, and the plurality of springs are arranged longitudinally and transversely to form a cubic spring bed net 9.

[0043] The specific structure of the two-section four-circle cross-section spring refers to the above-mentioned embodiments, since the mattress adopts all the technical schemes of the above-mentioned embodiments, at least has all the beneficial effects brought by the technical schemes of the above-mentioned embodiments, which will not be repeated here.

[0044] The utility model discloses, since and the pitch of first pressure bearing part 2 is greater than the pitch of second pressure bearing part 3, so after two-section four-circle cross-section spring is loaded into cloth bag 10, the compression ratio of first pressure bearing part 2 is greater than the compression ratio of second pressure bearing part 3, and therefore the supporting force of first pressure bearing part 2 is greater than the supporting force of second pressure bearing part 3, so that the spring 1 has two different softnesses, in addition, two-section four-circle cross-section spring is equipped with connecting part 4, and the outer diameter of this part is the smallest in the spring 1, which can effectively reduce the friction between first pressure bearing part 2 and second pressure bearing part 3 when the spring is under pressure, and reduce the generation of abnormal sound. In addition, first pressure bearing part 2, second pressure bearing part 3 and connecting part 4 can be provided with multiple rings, that is, each of the three parts can have multiple, not limited to Figure 1 The first pressure bearing part 2 and the second pressure bearing part 3 and the connecting part 4 in the utility model all have only one, to meet the demand of springs of different heights and hardnesses.

[0045] The mattress with two kinds of hardness of the utility model realizes the purpose of having double-layer sleeping feeling, comprising a plurality of two-section four-circle cross-section springs and cloth bags 10. Figure 4As shown, the cloth bag 10 wraps the springs by ultrasonic welding or sewing to make them not interfere with each other, the cloth bag 10 adopts non-woven fabric or cotton cloth, and the cloth bag of the plurality of two-section four-circle cross-section springs is arranged in longitudinal and transverse combination to form a spring bed net 9, and the spring bed net 9 can be processed into a finished product after adding a comfort layer 11 on the surface.

[0046] The two-section four-circle cross-section springs are loaded into the cloth bag 10 by using a full-automatic spring loading machine, which is a commonly used machine in the industry, and therefore detailed description is not given here, and the two-section four-circle cross-section springs can also be loaded into the cloth bag by using a manual sewing method, and the material for loading can be non-woven fabric, cotton cloth, etc., and the springs can be connected and fixed by using a gluing method, an ultrasonic welding method and a manual threading method, which is a common production process in the spring bed net industry, and therefore detailed description is not given here.

[0047] In the utility model, the steel wire 7 for producing the spring 1 generally adopts high-carbon steel wire, and can also adopt stainless steel wire, etc.

[0048] According to the actual test result, the spring processed by using the four-circle cross-section steel wire has basically equal overall supporting force as the supporting force of the same circular wire diameter (see Figure 3 ).

[0049] The material consumption of the two-section four-circle cross-section spring is less than that of the circular cross-section (for example, the cross-section of the steel wire 7 is compared with the circular cross-section of the circumscribed circle b in Figure 3 , and the steel wire 7 has a groove 8, so that the material consumption is further saved), for example, the diameter of the cross-section circumscribed circle of the steel wire 7 is 2.5mm, and the diameter of the four cross-section circumscribed circles is 1mm (see Figure 3 ), and the area of the four-circle cross-section of the steel wire is 3.6231mm 2 , and the cross-section area of the circular cross-section steel wire with a diameter of 2.5mm is 4.9087mm 2 , and the comparison calculation shows that the material consumption of the spring produced by the four-circle steel wire is 26.2% less than that of the circular cross-section spring with the same outer diameter.

[0050] The utility model discloses, specific first caliber department 5, second caliber department 6 outside diameter is 30-80mm, the intermediate connecting portion 4 outside diameter is 20-70mm, and the spring total ring number is 5-13 rings, and the spring total height is 80-400mm, when the spring is under pressure, first pressure receiving part 2 supports the force because of the big pitch, and second pressure receiving part 3 supports the force because of the small pitch, therefore, the spring 1 can reach two different support force and resilience, and the intermediate connecting portion 4 mainly plays the connection first pressure receiving part 2 and second pressure receiving part 3, therefore, the spring has two different support force up and down.

[0051] The utility model discloses a mattress, cloth bag is wrapped in spring through ultrasonic welding or adopts the mode of sewing, makes it not interfere with each other, and the cloth bag is non -woven fabric or cotton cloth, and multiple bagged two -section type four circle section springs are combined into spring bed net 9 (see Figure 5 ) in longitudinal and transverse arrangement. The mattress uses two -section type four circle section springs, and the front and back have different support force, and the user can experience different sleep feeling by turning over the mattress surface, can satisfy more crowd's demand to the softness and hardness of mattress, effectively improves the practicality of mattress, and simultaneously because spring adopts four circle section steel wire processing, can effectively save material under the premise of improving overall resilience, reduces cost and also can energy -conserving and emission -reducing while.

[0052] The utility model discloses, not the part of narrative is prior art.

[0053] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A two-section four-circular cross-section spring, characterized in that, include: Spring (1), the spring (1) is made of steel wire (7) wound into a spiral shape, and the spring (1) includes a connecting part (4) and a first pressure bearing part (2) and a second pressure bearing part (3) respectively connected to both ends of the connecting part (4); The first pressure-bearing part (2) and the second pressure-bearing part (3) have the same number of rings. The spring pitch of the first pressure-bearing part (2) is greater than the spring pitch of the second pressure-bearing part (3). The outer diameter of the connecting part (4) is smaller than the outer diameter of the first pressure-bearing part (2) and the second pressure-bearing part (3).

2. A two-section four-circle cross-section spring as described in claim 1, characterized in that, The first pressure-bearing part (2) and the second pressure-bearing part (3) are olive-shaped from top to bottom.

3. A two-section four-circle cross-section spring as described in claim 1, characterized in that, The outer end of the first pressure-bearing part (2) has a first diameter part (5), and the outer end of the second pressure-bearing part (3) has a second diameter part (6).

4. A two-section four-circle cross-section spring as described in claim 3, characterized in that, The wire ends of the first diameter section (5) and the second diameter section (6) face inward.

5. A two-section four-circle cross-section spring as described in claim 3, characterized in that, The diameters of the first diameter section (5) and the second diameter section (6) are both smaller than the diameter of the second ring.

6. A two-section four-circle cross-section spring as described in claim 1, characterized in that, The steel wire (7) is formed by drawing steel wire with an outer tangent circle as the cross-section. The cross-section has four outer tangent circles, and the tangent points of the four outer tangent circles are evenly distributed on the outer tangent circles of the steel wire (7). There are grooves (8) between the outer tangent circles.

7. A mattress, characterized in that, It includes several two-section four-circle cross-section springs as described in any one of claims 1 to 6 and a cloth bag (10), wherein the cloth bag (10) is used to wrap the two-section four-circle cross-section springs inside the cloth bag (10) so that the several two-section four-circle cross-section springs are arranged in a longitudinal and transverse manner to form a spring bed net (9).

8. A mattress as described in claim 7, characterized in that, The spring mattress (9) has a comfort layer (11) on both the upper and lower ends, and side strips (12) around the perimeter of the spring mattress (9). The comfort layer (11) and the side strips (12) are connected by webbing (13) and wrap the spring mattress (9).

9. A mattress as described in claim 7, characterized in that, The spring mattress (9) is cubic in shape.

10. A mattress as described in claim 7, characterized in that, The bag (10) is made of non-woven fabric or cotton.

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