Elastic supporting assembly and seat

Abstract

The utility model discloses an elastic supporting assembly and a seat. The elastic supporting assembly comprises a first base, a second base, a connecting rod and a square elastic piece, the two ends of the square elastic piece are embedded into the first base and the second base respectively, one end of the connecting rod penetrates through the second base, the square elastic piece and the first base and then is fixedly connected with the back cushion, the connecting rod is in sliding fit with the second base, and a second limiting part which can abut against the second base is arranged on the connecting rod in a protruding mode; the square elastic piece can abut against the first base to the back cushion, and the second limiting part of the connecting rod can abut against the second base. By means of the arrangement, the square elastic piece enables the elastic supporting assembly to effectively cope with the twisting action, the elastic supporting assembly has the characteristic of resetting without displacement, the structure of the elastic supporting assembly is simpler, and the connecting mode of all the components is simpler; and therefore, the elastic supporting assembly is convenient to mount and maintain, and parts are convenient to replace.

Description

Technical Field

[0001] The utility model relates to the field of household items, in particular to an elastic support assembly and a seat Background Art

[0002] In children's chairs, office chairs or gaming chairs, the backrest or chair back is usually fixed or made of elastic materials and can be adjusted in the front-back position. This structural method requires the user to get up and manually adjust the position of the cushion. Such an adjustment method is inconvenient, and sometimes it cannot be adjusted to the appropriate position at one time

[0003] The prior art with the publication number of CN201468598U discloses a combination device of a seat backrest and a seat backrest frame, which is composed of spring steel wires with strong elasticity and strength wound into various types of springs. A base is welded on one end face of the spring, and a plurality of metal blocks are evenly welded corresponding to the periphery of the spring on the other end face. A through hole is opened in the middle of the metal block, and a positioning ring is arranged in the through hole. A hollow cylinder is also fixed on the base in the direction towards the inside of the spring. One end of a metal rod is inserted into the cylinder, and the other end is fixed to the surrounding metal blocks through a plurality of metal strips

[0004] The backrest using the above prior art is prone to torsion, and the oval spring cannot provide better support and reset for the backrest after torsion. After long-term torsion, the oval spring is also prone to problems such as deformation and displacement Summary of the Utility Model

[0005] In order to solve the problems of easy torsion and inability to reset and spring displacement in the prior art, the purpose of the present utility model is to provide an elastic support assembly and a seat. This assembly can give stronger feedback and reset force when torsion occurs, and has the characteristics of small deformation and no displacement

[0006] In order to achieve the above purpose, the present utility model adopts the following technical solutions: including a first base, a second base, a connecting rod and a square elastic member

[0007] Both ends of the square elastic member are respectively embedded in the first base and the second base. One end of the connecting rod passes through the second base, the square elastic member and the first base and is fixedly connected to the cushion. The connecting rod is slidably matched with the second base, and a second limiting portion that can abut against the second base protrudes on the connecting rod; the square elastic member can press the first base against the cushion, so that the second limiting portion of the connecting rod abuts against the second base

[0008] Preferably, the square elastic member is a square spring or a square rubber block

[0009] Preferably, a first slot is provided on the first base, and a second slot is provided on the second base. The first slot and the second slot face each other, and both ends of the square elastic member are inserted into the first slot and the second slot respectively.

[0010] Preferably, an insertion interface is provided on the first base, and the insertion interface on the first base is inserted into the convex nut seat on the cushion.

[0011] Preferably, one end of the first base facing the cushion is provided with a first abutting portion in a horn shape, and the insertion interface is located inside the first abutting portion.

[0012] Preferably, a ring-shaped first limiting portion protrudes on the second base, one end of the first base is inserted into the first limiting portion of the second base, and the square elastic member is located inside the first limiting portion.

[0013] Preferably, both the inner circle of the first limiting portion and the first base are in a rounded rectangle shape.

[0014] Preferably, it further includes a third base for connecting to the chair frame, and the second base and the third base are detachably connected; when the first base and the second base move relative to each other, the second limiting portion of the connecting rod can abut against the third base.

[0015] Preferably, a clamping protrusion is provided on the second base, and a clamping groove is provided on the third base. The clamping protrusion and the clamping groove are inserted; wherein, the clamping groove is a dovetail groove, and the clamping protrusion is a dovetail tenon.

[0016] Preferably, the cushion includes a support plate. The end of the connecting rod passes through the second base, the square elastic member and the first base and is fixedly connected to the support plate, and the square elastic member presses the first base on the support plate.

[0017] A seating furniture includes the above elastic support assembly. Among them, the connecting rod and the first base of the elastic support assembly are both connected to the cushion of the seating furniture, and the third base of the elastic support assembly is connected to the chair frame of the seating furniture.

[0018] The beneficial effects of the technical solution of the present utility model are as follows: The square elastic member enables the above elastic support assembly to effectively cope with torsional movements. The square elastic member embedded in the first base and the second base provides a more reliable elastic support and torsional reset effect, and enables the elastic support assembly to have the characteristic of no displacement during reset; in the above solution, the first base is directly connected to the cushion, and the second base is pulled by the connecting rod, and thus the initial pressure of the square elastic member can be adjusted by controlling the connection length between the connecting rod and the cushion; in the above solution, the square elastic member is embedded in the first base and the second base, the first base is fixedly connected to the cushion, and the connecting rod slides relative to the second base, making the structure of the above elastic support assembly simpler, and the connection method between each component is also simpler, thereby making the elastic support assembly convenient for installation, maintenance and replacement of components. Brief Description of the Drawings

[0019] Figure 1 Schematic diagram of the connection structure between the support plate and the elastic component in Embodiment 1 Figure 1 ;

[0020] Figure 2 Schematic diagram of the connection structure between the support plate and the elastic component in Embodiment 1 Figure 2 ;

[0021] Figure 3 Schematic diagram of the connection structure between the support plate and the elastic component in Embodiment 1 Figure 3 ;

[0022] Figure 4 Schematic diagram of the structure of the first base in Embodiment 1 Figure 1 ;

[0023] Figure 5 Schematic diagram of the structure of the first base in Embodiment 1 Figure 2 ;

[0024] Figure 6 Schematic diagram of the structure of the second base in Embodiment 1 Figure 1 ;

[0025] Figure 7 Schematic diagram of the structure of the second base in Embodiment 1 Figure 2 ;

[0026] Figure 8 Schematic diagram of the structure of the square elastic member in Embodiment 1;

[0027] Figure 9 Schematic diagram of the structure of the third base in Embodiment 1;

[0028] Figure 10 Schematic diagram of the structure of the support plate in Embodiment 1;

[0029] Figure 11 Schematic diagram of the connection structure among the first base, the square elastic member and the second base in Embodiment 2;

[0030] Figure 12 Schematic diagram of the structure of the square elastic member in Embodiment 2.

[0031] Reference Numerals: 1, first base; 11, first abutting portion; 12, second abutment; 13, first through hole; 14, insertion opening; 15, first groove; 16, first avoidance opening;

[0032] 2, second base; 21, first limiting portion; 22, strengthening portion; 23, second groove; 24, second through hole; 25, clamping projection; 26, second avoidance opening;

[0033] 3. Third base; 31. Card slot;

[0034] 4. Connecting rod; 41. Connecting part; 42. Second limiting part;

[0035] 5. Square elastic part; 51. Third through hole; 52. Third limiting part; 53. Fourth limiting part; 54. Deformation ring groove; 55. Fourth through hole; 56. Substrate;

[0036] 6. Support plate; 61. Nut seat; 62. Threaded hole. Detailed implementation mode

[0037] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0039] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more, unless otherwise clearly defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature. Embodiment 1

[0042] As Figures 1 to 10 shown, an elastic support assembly includes a first base 1, a second base 2, a connecting rod 4 and a square elastic member 5; both ends of the square elastic member 5 are respectively embedded in the first base 1 and the second base 2, one end of the connecting rod 4 passes through the second base 2, the square elastic member 5 and the first base 1 and is fixedly connected to a cushion such as a lumbar support, a chair back or an armrest, a second limiting portion capable of abutting against the second base 2 protrudes on the connecting rod 4, the connecting rod 4 is in sliding fit with the second base 2, after the square elastic member 5 is released, it can press the first base 1 against the cushion, and can make the second limiting portion of the connecting rod 4 abut against the second base 2.

[0043] With such a setting, the above elastic support assembly can be adapted to seat components such as lumbar supports, chair backs and armrests, thereby making the seat more comfortable; and when the first base 1 and the second base 2 are twisted, the square elastic member 5 embedded in the first base 1 and the second base 2 provides a more obvious supporting and torsional resetting effect, and makes the elastic support assembly have the characteristic of no displacement during resetting.

[0044] In this embodiment, the square elastic member 5 is a square spring, both ends of the connecting rod are respectively a connecting portion and a second limiting portion, the second limiting portion 42 and the connecting portion 41 are respectively arranged at both ends of the connecting rod 4; after the square elastic member 5 is released, the connecting rod 4 abuts against the second base 2 through the second limiting portion 42, and the square elastic member presses the first base against the cushion. With such a setting, the stroke of the square elastic member 5 is restricted, and each component is connected together.

[0045] In this embodiment, a first embedding groove 15 is arranged on the first base 1, a second embedding groove 23 is arranged on the second base 2, the first embedding groove 15 and the second embedding groove 23 are arranged facing each other, and both ends of the square spring are respectively inserted into the first embedding groove 15 and the second embedding groove 23. Further preferably, a reinforcing portion 22 protrudes on the second base 2, and the second embedding groove 23 is arranged on the reinforcing portion 22.

[0046] In this embodiment, the connecting rod 4 is arranged at the middle position among the first base 1, the second base 2 and the square spring.

[0047] In this embodiment, a thread is provided on the connecting portion 41 of the connecting rod 4, and the connecting rod 4 is fixedly connected to the cushion through the thread.

[0048] In this embodiment, a first abutting portion 11 in a horn shape is provided on the first base 1; after the connecting rod 4 is connected to the cushion, the end face of the first abutting portion 11 can abut against the cushion. With such a setting, the connection area between the cushion and the elastic support assembly can be further increased, and thus the support effect and connection strength between the elastic support assembly and the cushion are better.

[0049] In this embodiment, an insertion interface 14 for connecting the cushion is provided at one end of the first base 1, so that the first base 1 and the cushion move synchronously. Further preferably, the insertion interface 14 is in a rounded rectangular shape. In this way, the first base 1 can rotate synchronously with the cushion. Further, the insertion interface 14 is located inside the first abutting portion 11. Further, a second abutting portion is protruded on the first base, and the insertion interface 14 is provided on the second abutting portion 12.

[0050] In this embodiment, as Figure 6 and Figure 7 shown, a ring-shaped first limiting portion 21 is protruded on the second base 2. As Figures 1 to 3 shown, one end of the first base 1 is inserted into the first limiting portion 21 of the second base 2. The square spring is located in the first limiting portion 21, and the first base and the second base can slide relative to each other; the inner circle of the first limiting portion 21 is larger than the outer diameter of the first base 1, and the first base 1 can move within the first limiting portion 21 of the second base 2. Further preferably, both the inner circle of the first limiting portion 21 and the first base 1 are in a rounded rectangular shape. With such a setting, it can be avoided that the first base 1 rotates excessively.

[0051] In this embodiment, as Figure 4 and Figure 5 shown, a first avoidance opening 16 is provided on the first base 1, and a first through hole 13 communicating with the insertion interface 14 is provided in the first avoidance opening 16. As Figure 6 and Figure 7 shown, a second through hole 24 is provided on the second base 2. The connecting rod 4 passes through the second through hole 24 of the second base 2, the first avoidance opening 16 of the first base 1, the first through hole 13 of the first base 1, and the insertion interface of the first base 1 and then is fixedly connected to the cushion; a second avoidance opening 26 communicating with the second through hole is provided on the second base, and the second limiting portion on the connecting rod is located in the second avoidance opening 26 and is in sliding fit.

[0052] In this embodiment, as Figure 3 shown, the connecting rod 4 is in sliding fit with the second through hole 24, and both the first through hole 13 and the first avoidance opening 16 are in clearance fit with the connecting rod 4.

[0053] In this embodiment, asFigures 1 to 3 As shown, the elastic support assembly further includes a third base 3 for connecting to the chair frame, and the second base 2 and the third base 3 are connected together in a detachable manner; as Figure 3 and Figure 7 shown, a convex lug 25 is provided on the second base 2, as Figure 3 and Figure 7 shown, a slot 31 is provided on the third base 3, and the convex lug 25 is inserted into the slot 31. With such a setting, the seat components connected by the elastic support assembly are more convenient to install.

[0054] Further preferably, the slot 31 is a dovetail groove, and the convex lug 25 is a dovetail tenon; wherein, the bottom of the dovetail groove is in a sealed state, the dovetail groove extends upward through the third base 3, and the dovetail tenon is inserted into the dovetail groove from top to bottom; thus, the second base 2 and the third base 3 are restricted in all directions except the vertical direction.

[0055] In this embodiment, as Figure 3 shown, the second avoidance opening 26 of the second base 2 penetrates through the convex lug 25, and the third base blocks the second avoidance opening 26; when the first base and the second base move relative to each other, the second limiting portion 42 of the connecting rod 4 can abut against the inner wall of the slot 31 on the third base; thereby, the telescopic range of the elastic support assembly can be restricted, and the cushion and the third base 3 can directly abut against each other through the connecting rod 4, thereby avoiding excessive compression of the square spring and improving reliability.

[0056] In this embodiment, as Figure 8 shown, a plurality of third through holes 51 are provided on the square spring to improve the elastic deformation ability of the elastic support assembly.

[0057] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 10 shown, the cushion includes a support plate 6, and a nut seat 61 matching the insertion opening 14 on the first base 1 protrudes from the support plate 6. The nut seat 61 on the support plate 6 is inserted into the insertion opening 14 on the first base 1, so that the first base 1 and the cushion move synchronously. Further preferably, both the insertion opening 14 and the nut seat 61 on the first base 1 are in a rounded rectangular shape. In this way, the first base 1 can rotate synchronously with the cushion. In this embodiment, the support plate 6 can be used as the skeleton of the lumbar support, the backrest, the armrest or the headrest.

[0058] In this embodiment, a threaded hole 62 is provided on the nut seat 61 of the support plate 6, and the connecting portion 41 of the connecting rod 4 is threadedly connected to the threaded hole 62 of the support plate 6, thereby fixing the connecting rod 4 to the support plate 6.

[0059] In this embodiment, the end face of the first abutting portion 11 on the first base 1 matches the support plate 6, and the nut seat 61 on the support plate 6 is inserted into the insertion port 14 of the first base 1 after entering the inner side of the first abutting portion 11. With such a setting, the connection area between the cushion and the elastic support assembly can be further increased, and thus the support effect and connection strength between the elastic support assembly and the cushion are better.

[0060] In this embodiment, the square spring is made of an elastic material such as metal, plastic or rubber.

[0061] A seat includes the above-mentioned elastic support assembly. The connecting rod 4 and the first base 1 of the elastic support assembly are both connected to the cushion of the seat, and the third base 3 of the elastic support assembly is connected to the chair frame of the seat. Embodiment 2

[0062] Different from the above embodiment, in this embodiment, as Figure 11 and Figure 12 shown, the square elastic member 5 is a square rubber block. The square rubber block includes a base body 56. The two ends of the base body 56 are respectively inserted into the first embedding groove 15 of the first base 1 and the second embedding groove 23 of the second base 2. A fourth through hole 55 is provided at the central position of the base body 56, and the connecting rod 4 passes through the fourth through hole 55; third limiting portions 52 and fourth limiting portions 53 protrude from the base body 56. The third limiting portions 52 and the fourth limiting portions 53 are arranged oppositely, and a deformation ring groove 54 with a V-shaped cross section is arranged between the third limiting portions 52 and the fourth limiting portions 53. Among them, the third limiting portion 52 abuts against the end of the first base 1, and the fourth limiting portion 53 abuts against the strengthening portion of the second base 2. With such a setting, the first base 1 and the second base 2 are enabled to achieve relative swinging torsion and torsion reset by squeezing the square rubber block, and the square rubber block can make the structure of the elastic support assembly more plump, providing a more stable and powerful support for the backrest or cushion.

[0063] Other structural parts in this embodiment are the same as those in Embodiment 1.

[0064] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0065] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. An elastic support component, characterized in that: It includes a first base (1), a second base (2), a connecting rod (4), and a square elastic member (5); Both ends of the square elastic member (5) are respectively embedded in the first base (1) and the second base (2). One end of the connecting rod (4) passes through the second base (2), the square elastic member (5), and the first base (1) and is fixedly connected to the cushion. The connecting rod (4) is slidably matched with the second base (2). A second limiting portion (42) that can abut against the second base (2) protrudes on the connecting rod (4). The square elastic member (5) can press the first base (1) against the cushion and enable the second limiting portion (42) of the connecting rod (4) to abut against the second base (2).

2. The elastic support assembly according to claim 1, wherein: The square elastic member (5) is a square spring or a square rubber block.

3. An elastic support assembly according to claim 2, characterized in that: A first embedding groove (15) is provided on the first base (1), and a second embedding groove (23) is provided on the second base (2). The first embedding groove (15) and the second embedding groove (23) are arranged facing each other. Both ends of the square elastic member (5) are respectively inserted into the first embedding groove (15) and the second embedding groove (23).

4. An elastic support assembly according to claim 2, characterized in that: An insertion interface (14) is provided on the first base (1). The insertion interface (14) on the first base (1) is inserted into a protruding nut seat (61) on the cushion. One end of the first base (1) facing the cushion is provided with a first abutting portion (11) in a horn shape, and the insertion interface (14) is located inside the first abutting portion (11).

5. An elastic support assembly according to claim 1, wherein: A circular first limiting portion (21) protrudes on the second base (2). One end of the first base (1) is inserted into the first limiting portion (21) of the second base (2), and the square elastic member (5) is located inside the first limiting portion (21).

6. The elastic support assembly according to claim 5, characterized in that: Both the inner circle of the first limiting portion (21) and the first base (1) are in a rounded rectangle shape.

7. An elastic support assembly according to claim 1, characterized in that: It further includes a third base (3) for connecting to the chair frame. The second base (2) and the third base (3) are detachably connected. When the first base (1) and the second base (2) move relative to each other, the second limiting portion (42) of the connecting rod (4) can abut against the third base (3).

8. An elastic support assembly according to claim 7, characterized in that: A clamping protrusion (25) is provided on the second base (2), and a clamping groove (31) is provided on the third base (3). The clamping protrusion (25) and the clamping groove (31) are inserted into each other. Among them, the clamping groove (31) is a dovetail groove, and the clamping protrusion (25) is a dovetail tenon.

9. An elastic support assembly according to claim 1, characterized in that: The cushion includes a support plate (6). The end of the connecting rod (4) passes through the second base (2), the square elastic member (5), and the first base (1) and is fixedly connected to the support plate (6). The square elastic member (5) presses the first base (1) against the support plate (6).

10. A seating device, characterized in that: It includes an elastic support assembly according to any one of the above claims 1-9, wherein the connecting rod (4) and the first base (1) of the elastic support assembly are both connected to the cushion of the seat furniture, and the third base (3) of the elastic support assembly is connected to the chair frame of the seat furniture.

Images