阅读说明：本技术 一种沙发铁架的靠背单独调节装置 (Independent backrest adjusting device for sofa iron frame ) 是由 刘立华 于 2020-05-22 设计创作，主要内容包括：本发明公开了一种沙发铁架的靠背单独调节装置,属于沙发技术领域,一种沙发铁架的靠背单独调节装置,本方案可以实现沙发靠背可以实现自由调整角度,且在调整过程中,不易出现传动结构卡死现象,同时通过的在沙发铁架连接结构中设置橡胶垫片来大幅减小铁基架等结构调整过程中产生的振动对连接用的螺栓的影响,使螺栓不易松动,使沙发铁架整体连接更加稳固,不易松动,而在靠背支架上设置填充有螺旋骨架和填充绒毛的靠垫,减小用户在使用沙发过程中磕伤的可能,同时多个填充绒毛交织纠缠在一起会形成多个空室,可以有效减小铁基架等结构调整产生的振动所形成的震动和噪音对于用户的影响。(The invention discloses a backrest independent adjusting device of a sofa iron frame, belonging to the technical field of sofas, which can realize that the angle of the sofa backrest can be freely adjusted, and the phenomenon of locking of a transmission structure is not easy to occur in the adjusting process, meanwhile, the rubber gasket is arranged in the sofa iron frame connecting structure to greatly reduce the influence of vibration generated in the adjustment process of structures such as the iron base frame and the like on the connecting bolt, so that the bolt is not easy to loosen, the whole sofa iron frame is more stable and not easy to loosen, the back cushion filled with the spiral framework and the fluff is arranged on the back support, so that the possibility of bruising of a user in the process of using the sofa is reduced, meanwhile, a plurality of filling piles are interlaced and entangled to form a plurality of empty chambers, so that the influence of vibration and noise generated by vibration generated by structural adjustment of an iron base frame and the like on a user can be effectively reduced.)

1. The utility model provides a sofa iron stand's back individual adjusting device, includes iron bed frame (1), its characterized in that: fixedly connected with hoisting frame (2) on iron bed frame (1), the one end swing joint that hoisting frame (2) were kept away from to iron bed frame (1) has a pair of connecting piece (5), two connecting piece (5) all can wind iron bed frame (1) free rotation, the one end fixedly connected with back support (6) of iron bed frame (1) are kept away from to connecting piece (5), two fixedly connected with tailstock (4) between connecting piece (5), be connected with electric putter (3) between tailstock (4) and hoisting frame (2), and all through the round pin hub connection between electric putter (3) and hoisting frame (2) and tailstock (4).

2. The backrest individual adjusting apparatus of a sofa iron stand according to claim 1, wherein: iron bed frame (1) and hoisting frame (2) and connecting piece (5) to and all be connected through bolted connection structure between connecting piece (5) and tailstock (4) and back support (6), bolted connection structure includes bolt and rubber gasket (7), rubber gasket (7) cup joint on the bolt, and is located between connecting piece and the bolt spiral shell head, rubber gasket (7) all are equipped with the dull polish layer with the contact surface of spiral shell head.

3. The backrest individual adjusting apparatus of a sofa iron stand according to claim 2, wherein: an elastic cavity (702) is formed in the rubber gasket (7) in a chiseled mode, and a plurality of plastic fragments (8) are filled in the elastic cavity (702).

4. The backrest individual adjusting apparatus of a sofa iron stand according to claim 3, wherein: the plastic fragments (8) are soft rubber fragments with irregular sizes and shapes.

5. The backrest individual adjusting apparatus of a sofa iron stand according to claim 3, wherein: the elastic cavity (702) is filled with a small amount of lubricating oil.

6. The backrest individual adjusting apparatus of a sofa iron stand according to claim 2, wherein: it has air chamber (701) to open in rubber gasket (7), air chamber (701) intussuseption is filled with high-pressure gas, it has the through-hole to open on rubber gasket (7), and air chamber (701) is linked together through-hole and external, it has sealing plug (9) with self assorted to peg graft in the through-hole.

7. The backrest individual adjusting apparatus of a sofa iron stand according to claim 2, wherein: a buffer groove (10) is formed in the rubber gasket (7), and an elastic string (11) is fixedly connected between a groove bottom plate of the buffer groove (10) and the sealing plug (9).

8. The backrest individual adjusting apparatus of a sofa iron stand according to claim 1, wherein: fixedly connected with cushion on back support (6), the cushion includes overcoat and filler, the filler includes a plurality of spiral skeleton (12), and is a plurality of the equal syntropy of axial of spiral skeleton (12), a plurality of packing fine hair (13) of outside fixedly connected with of spiral skeleton (12).

9. The backrest individual adjusting apparatus of a sofa iron stand according to claim 8, wherein: spiral skeleton (12) are hollow helical structure, and the hollow inside packing of spiral skeleton (12) has gas, hollow structure gas pressure intensity is 1.3 atmospheric pressure in spiral skeleton (12).

10. The backrest individual adjusting apparatus of a sofa iron stand according to claim 1, wherein: the filling fluff (13) is fine fluff, and a plurality of filling fluff (13) are mutually interwoven and intertwined.

Technical Field

The invention relates to the technical field of sofas, in particular to a backrest independent adjusting device of a sofa iron frame.

Background

The sofa is one of seats popular to people and widely used in guest rooms, hotels, families and leisure places, and the main result of the sofa comprises a steel framework, a back cushion and a decorative outer skin, wherein the steel framework is the most important part for maintaining the shape of the sofa, and the structures of the back cushion, the decorative outer skin and the like are used for enabling the sofa to be more comfortable and improving the use experience of users.

In particular, bolt and nut are adopted to realize fixed connection between steel frameworks, and in order to prevent the bolt and nut from loosening, a non-slip mat is usually arranged between the screw head of the bolt and an iron frame, so that the bolt and the nut are prevented from slipping and loosening.

The existing sofa electromechanical device can realize mutual switching among postures such as sofa sitting posture, standing posture and lying posture by one set of motor, because the existing sofa transmission structure is mostly realized by structures such as a gear rack or a ratchet wheel, the transmission structure can not realize stepless regulation in the transmission process, the transmission structure is extremely easy to block and die in the regulation process, or the transmission structure emits overlarge noise, the use experience of a user is influenced, the adjustment angle of a sofa backrest is limited, and the adjustment can not be carried out independently, so that the overall comfort of the sofa is influenced, the requirements of the majority of users can not be met, especially, a steel framework can easily emit larger noise in the process of realizing transmission by structures such as the gear rack or the ratchet wheel, and the use experience of the user is seriously influenced.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a backrest independent adjusting device of a sofa iron frame, which can realize that the angle of the sofa backrest can be freely adjusted, and in the adjusting process, the phenomenon of locking of a transmission structure is not easy to occur, and in the transmission process, larger noise and vibration are not easy to occur, so that the normal use of a user is not easy to be influenced.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides a sofa iron frame's independent adjusting device of back, includes the iron bed frame, fixedly connected with hoisting frame on the iron bed frame, the one end swing joint that hoisting frame was kept away from to the iron bed frame has a pair of connecting piece, two the connecting piece all can wind iron bed frame free rotation, the one end fixedly connected with back support, two of iron bed frame is kept away from to the connecting piece fixedly connected with tailstock between the connecting piece, be connected with electric putter between tailstock and the hoisting frame, and all through the round pin hub connection between electric putter and hoisting frame and the tailstock for free angle of adjustment can be realized to the back support, and in the adjustment process, the difficult dead phenomenon of transmission structure card that appears, and great noise and vibration are difficult for appearing in the transmission process, are difficult for influencing user's normal use.

Further, all be connected through bolted connection structure between iron bed frame and hoisting frame and the connecting piece to and connecting piece and tailstock and back support, bolted connection structure includes bolt and rubber gasket, the rubber gasket cup joints on the bolt, and is located between connecting piece and the bolt spiral shell head, the rubber gasket all is equipped with the dull polish layer with the contact surface of spiral shell head, reduces the probability that the bolt skidded through the frictional force that increases between rubber gasket and the bolt, makes the bolt difficult not hard up.

Furthermore, it has the elasticity chamber to open the chisel in the rubber gasket, the elasticity intracavity is filled there are a plurality of plastic fragments, can effectively increase the holistic elasticity of rubber gasket through elasticity chamber and plastic fragment, reduces the influence of the vibration that iron bed frame isotructure adjustment in-process produced to the bolt, makes the difficult not hard up of bolt.

Furthermore, the plastic fragments are soft rubber fragments with irregular sizes and shapes, the elastic cavity is filled more easily through the matching of the plurality of soft rubber fragments with irregular sizes and shapes, the elastic cavity is not easy to loose due to the influence of the vibration of the iron-based frame, and the rubber gasket is not easy to slip.

Furthermore, a small amount of lubricating oil is mixed in the elastic cavity, and the lubricating oil can greatly reduce the friction force between the plastic fragments, so that the plastic fragments can move freely, the influence of vibration generated in the adjustment process of structures such as an iron base frame and the like on the bolt can be reduced, and the bolt is not easy to loosen.

Furthermore, an air cavity is formed in the rubber gasket in a chiseled mode, high-pressure gas is filled in the air cavity, a through hole is formed in the rubber gasket in a chiseled mode, the air cavity is communicated with the outside through the through hole, a sealing plug matched with the air cavity is inserted in the through hole, the thickness of the rubber gasket can be changed by a user through adjusting the volume of the air in the air cavity, and the overall adaptability of the rubber gasket is improved.

Furthermore, a buffer groove is formed in the rubber gasket, an elastic string is fixedly connected between the groove bottom plate of the buffer groove and the sealing plug, the sealing plug can be temporarily stored due to the arrangement of the buffer groove, the normal connection work of the rubber gasket is not easily influenced, and the elastic string can effectively lose the sealing plug of the house.

Further, fixedly connected with cushion on the back support, the cushion includes overcoat and filler, the filler includes a plurality of spiral skeleton, and is a plurality of the axial homodromous of spiral skeleton, a plurality of packing fine hair of the outside fixedly connected with of spiral skeleton, spiral skeleton increase the intensity of cushion as the skeleton of filler for the cushion is difficult to take place excessive deformation under the exogenic action, and the fluffy degree that can increase the filler of existence of packing fine hair, is difficult for taking place the accident that spiral skeleton collided with the wound user.

Further, the spiral skeleton is hollow helical structure, and the hollow inside packing of spiral skeleton has gas, the gaseous atmospheric pressure intensity of hollow structure is 1.3 atmospheric pressure in the spiral skeleton, and hollow structure can effectively reduce spiral skeleton's intensity, is difficult for causing the user to collide with the wound, and the gas of hollow structure intussuseption can increase spiral skeleton's elasticity for the trend reinforcing of the prototype is replied after receiving exogenic action to spiral skeleton.

Further, pack the fine hair, and a plurality of packing are interweaved and are entangled together between the fine hair, and a plurality of packing fine hair interweaves and can link together adjacent spiral skeleton together, makes the difficult relative displacement that takes place of spiral skeleton, and a plurality of packing fine hair interweaves and entangles together and can form a plurality of empty rooms, can effectively reduce the influence of the vibration that the adjustment of structures such as iron bed frame produced to the user.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

this scheme can realize that the sofa back can realize free angle of adjustment, and in the adjustment process, the difficult dead phenomenon of transmission structure card that appears, simultaneously through set up the rubber gasket and reduce the influence of the vibration that iron bed frame isotructure adjustment in-process produced to the bolt of connecting usefulness by a wide margin in sofa iron frame connection structure, it is difficult not hard up to make the bolt, make sofa iron frame integral connection more firm, it is difficult not hard up, and set up the cushion that packs and pack spiral skeleton and packing fine hair on the back support, reduce the possibility that the user knocks at the use sofa in-process, a plurality of packing fine hair interweave simultaneously and entangle and can form a plurality of dead rooms together, can effectively reduce vibrations and the noise that iron bed frame isotructure adjustment produced and to user's influence, great noise and vibration are difficult for appearing in the transmission process, be difficult for influencing user's normal use.

Drawings

FIG. 1 is a schematic structural view of an iron frame of the sofa back in a standing position according to the present invention;

FIG. 2 is a schematic structural view of the iron frame of the sofa back in the lying position of the invention;

FIG. 3 is a perspective view of the sofa iron frame of the present invention;

figure 4 is a schematic view of the structure of the rubber gasket of the present invention,

FIG. 5 is a front cross-sectional view of the inside of the rubber gasket of the present invention;

FIG. 6 is a schematic view of the structure at A in FIG. 5;

fig. 7 is a schematic view of the internal structure of the back pad of the present invention.

The reference numbers in the figures illustrate:

the device comprises an iron base frame 1, a lifting frame 2, an electric push rod 3, a tail frame 4, a connecting piece 5, a backrest support 6, a rubber gasket 7, an air cavity 701, an elastic cavity 702, plastic fragments 8, a sealing plug 9, a buffer groove 10, an elastic string 11, a spiral framework 12 and filling fluff 13.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.