Adjustable movable sofa headrest cushion

Abstract

The invention provides an adjustable moving sofa headrest cushion, which comprises a headrest cushion, a driving assembly and a guide assembly, the driving assembly comprises a driving shaft, a walking rack and a gear, the driving shaft is driven by a motor to rotate, the gear is in transmission fit with the driving shaft and can be driven by the driving shaft to rotate, and the driving shaft is driven by the walking rack to rotate. The rear side of the walking rack is meshed with the gear, the front side of the walking rack is fixedly matched with the headrest cushion, the guide assembly comprises a sliding strip seat and a sliding strip, the sliding strip seat and the sliding strip are connected to the sofa back frame and the headrest cushion respectively, and the sliding strip seat and the sliding strip are in guide sliding fit.

Description

Technical Field

[0001] The invention relates to the field of massage equipment, in particular to an adjustable and movable sofa headrest cushion. Background Art

[0002] In modern home life, sofas are important furniture for people's daily rest and relaxation. Their functions and comfort are receiving more and more attention. With the improvement of living standards, people's requirements for sofas are no longer limited to basic sitting functions. For this reason, sofas with massage functions have emerged. They integrate massage functions into traditional sofas, allowing people to enjoy the comfort and relaxation brought by massage while resting, effectively relieving physical fatigue, and adding more comfort and enjoyment to home life. However, existing sofas with massage functions still have some shortcomings in design. Among them, the adjustment function of the backrest is relatively simple, especially the headrest cushion part, which is mostly unable to be adjusted up and down. In actual use, users of different heights and body shapes For different usage scenarios, there are different requirements for the height of the sofa headrest cushion. For example, taller users may want the headrest cushion to be raised to better support the neck and shoulders; while shorter users may need the headrest cushion to be lowered to avoid uncomfortable pressure on the head. When the user is in different postures, such as sitting upright, half lying or fully lying, the headrest cushion also needs to be able to adjust its height accordingly to provide the best support and fit, thereby ensuring the maximum massage effect and body comfort. In view of the above problems, an adjustment mechanism that cooperates with the headrest cushion is set in the main body of the sofa with massage function, so that the sofa headrest cushion can be adjusted to a certain extent, so that people of different heights can experience the sense of head support and better massage effect. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, the present invention provides an adjustable and movable sofa headrest cushion, which can enable the sofa headrest cushion to be adjusted to a certain extent, so that people of different heights can experience head support and achieve better massage effects.

[0004] To achieve the above-mentioned purpose, the present invention provides an adjustable and movable sofa headrest cushion, comprising a headrest cushion, a drive assembly and a guide assembly, wherein the drive assembly comprises a drive shaft, a traveling rack and a gear, wherein the drive shaft is driven to rotate by a motor, the gear and the drive shaft are in transmission cooperation and can rotate under the drive of the drive shaft, the rear side of the traveling rack is meshed with the gear, and the front side of the traveling rack is fixedly cooperated with the headrest cushion, and the guide assembly comprises a sliding bar seat and a sliding bar, wherein the sliding bar seat and the sliding bar are respectively connected to the sofa back frame and the headrest cushion, and the sliding bar seat and the sliding bar are in guiding and sliding cooperation.

[0005] The advantages of adopting the above technical solution are: by setting up a driving component and a guide component, a driving shaft, a walking rack and a gear are set in the driving component, so that the driving shaft is driven to rotate by the motor and can drive the gear to rotate, and finally the front and rear of the walking rack are respectively fixed on the headrest cushion and engaged with the gear, so that when the motor drives the driving shaft to rotate, the gear can drive the rack to move up and down, and then drive the displacement of the headrest cushion, so that the sofa headrest cushion can be adjusted to a certain extent, so that people of different heights can experience the head support feeling, and each family member can find the most comfortable posture that suits their needs on the sofa. On this basis, a sliding bar and a sliding bar seat are set in the guide component, and the sliding bar can provide support along the sliding bar seat, making the movement of the headrest cushion more stable.

[0006] The present invention can be further configured as follows: the driving assembly also includes a pulley and a mating shaft, the mating shaft is provided with a transmission part near one end, the two ends of the pulley are respectively mounted on the transmission part and the driving shaft, and the other end of the mating shaft is passed through and positioned on the gear.

[0007] Through further settings, a pulley and a mating shaft are set in the drive assembly. The pulley is mounted on the transmission part and the drive shaft to realize power transmission. The mating shaft passes through the positioning gear to transmit the power transmitted by the pulley to the gear, and cooperates with the walking rack to complete the smooth adjustment of the headrest cushion, thereby ensuring the stability of the product.

[0008] The present invention may be further configured as follows: both ends of the mating shaft are provided with rotatably connected mounting portions, and the mounting portions include ears extending radially on both sides.

[0009] Through further configuration, a mounting portion for rotational connection can be provided on the mating shaft through accessories such as bearings. This enables, when connected to the sofa body through the upper ear of the mounting portion, to form rotational support for the mating shaft and the driving mechanism as a whole, making the product more stable.

[0010] The present invention can be further configured as follows: the guide assembly includes a shaping plate located at the rear side of the headrest cushion, the shaping plate includes a flat connecting surface, and there are two walking racks and two sliding bar seats, which are respectively connected on both sides of the horizontal surface.

[0011] Through further settings, two walking racks and two sliding bar seats are set, and a shaping plate is set on the back side of the headrest cushion, so that the two walking racks and sliding bar seats are respectively set on both sides of the shaping plate, ensuring that the headrest cushion is evenly stressed during lifting and lowering adjustment, avoiding tilting and jamming problems caused by unilateral force, and the setting of the flat connecting surface of the shaping plate can also ensure the stability of the walking rack position, and prevent the deformation and jamming of the walking rack caused by deformation of the headrest cushion, making the product run more stably.

[0012] The present invention can be further configured such that: induction switches are provided at both ends of the sliding bar seat in the length direction.

[0013] Through further settings, when the headrest cushion moves to the extreme positions at both ends along with the sliding bar on the sliding bar seat, the sensor switch will quickly sense and trigger the power-off or limit mechanism to prevent the walking rack and gear from colliding and wearing due to excessive transmission. The extreme position can also be determined by the sensor switches located at both ends, thereby providing a self-test function for the massage sofa.

[0014] The present invention can be further configured as follows: it includes a back frame and a middle filling mechanism, the back frame is supported on the rear side of the headrest cushion and the lower backrest, the filling mechanism includes an airbag, the airbag is arranged between the headrest cushion and the back frame, and the lower end of the airbag corresponds to the lower backrest, and the airbag can be inflated / deflated as the headrest cushion rises / falls.

[0015] Through further settings, since the airbag is between the headrest cushion and the back frame, the position covered by the headrest cushion will be limited by the back frame and both sides of the headrest cushion, and the gas will fill the part that loses the limit due to the rise of the headrest cushion, and the filling amount of the airbag can also be adjusted according to the lifting and lowering of the headrest cushion to ensure that the filling amount just meets the amount that the part between the headrest cushion and the lower backrest can expand. When the user adjusts the height of the headrest cushion according to his or her own needs, the airbag between the back frame and the headrest cushion will synchronously start the inflation / deflation program, and automatically form a filling between the headrest cushion and the lower backrest, which not only effectively fills the gap caused by the lifting and lowering of the headrest cushion, and provides certain support for the corresponding position of the back, but also makes the massage sofa smoother, smoother and more beautiful as a whole.

[0016] The present invention may be further configured as follows: the central filling mechanism includes an outer covering surface, and the outer covering surface is used to cover the outer side of the airbag.

[0017] Through further settings, an additional outer covering is set, and the outer covering is covered on the outside of the airbag. The same material as the surface of the massage sofa can be selected to make the massage sofa more integrated, avoid the abrupt feeling caused by the airbag filling, and be more beautiful.

[0018] The present invention can be further configured as follows: the middle filling mechanism includes a roller, the upper end of the outer cover is connected to the bottom of the headrest cushion, the roller is connected to the lower end of the outer cover, and the roller can release or reel in the outer cover as the headrest cushion rises / falls.

[0019] Through further settings, one end of the outer cover is firmly connected to the bottom of the headrest cushion, and the other end is connected to the reel. As the headrest cushion rises and falls, the reel controls the release and reeling of the outer cover. When the headrest cushion rises, the reel releases the outer cover to prevent it from excessively pressing on the airbag; when the headrest cushion falls, the reel quickly reels the outer cover to keep it taut, ensuring that the lines of the sofa back are always flat and smooth, ensuring comfort and aesthetics.

[0020] The present invention may be further configured as follows: a connecting portion is provided at the lower end of the outer covering surface, and the connecting portion is wound on the reel to form a connection between the outer covering surface and the reel.

[0021] Through further configuration, a connecting portion is provided at the lower end of the outer covering, which is wound around the outer covering of the reel to provide a stable pulling force without affecting the material of the outer covering, thereby ensuring that the outer covering and the surface material of the massage sofa are consistent, making it convenient to reel in and release.

[0022] The present invention may be further configured such that: the back frame is provided with an inner cushion elastically abutting against the airbag at a position corresponding to the inner side of the airbag.

[0023] Through further settings, an inner pad is set on the inside of the airbag on the back frame, and the elastic material is tightly against the airbag to achieve the purpose of limiting the support and expansion direction of the airbag. When the airbag is inflated and deflated along with the rise and fall of the headrest cushion, the inner pad relies on its elastic buffering and support characteristics to accurately constrain the airbag shape and displacement range, further improving the stability and reliability of the sofa back support system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of embodiment 1 of the present invention; Figure 2 Schematic diagram of the structure of the driving assembly in the first embodiment of the present invention; Figure 3 This is a structural diagram of the sliding bar seat and the sliding bar in the first embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the sofa body in Example 1 of the present invention; Figure 5 Schematic diagram of the coordination structure between the headrest cushion and the lower backrest in the first embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the headrest cushion after it is raised in the second embodiment of the present invention; Figure 7 This is the second embodiment of the present invention Figure 6 Cross-sectional view at AA in the middle; Among them: headrest cushion 1; drive assembly 2; drive shaft 21; running rack 22; gear 23; pulley 24; mating shaft 25; motor 26; transmission part 251; mounting part 252; ear 253; guide assembly 3; sliding bar seat 31; sliding bar 32; shaping plate 33; connecting surface 331; induction switch 34; lower backrest 4; back frame 5; inner pad 51; middle filling mechanism 6; airbag 61; outer covering surface 62; connecting part 621; reel 63. DETAILED DESCRIPTION

[0025] An embodiment of an adjustable sofa headrest cushion of the present invention is as follows Figure 1-5 As shown: it includes a headrest cushion 1, a drive assembly 2, a guide assembly 3 and a lower backrest 4, the drive assembly 2 includes a drive shaft 21, a walking rack 22, a gear 23, a pulley 24 and a matching shaft 25, the drive shaft 21 is driven to rotate by a motor 26, the gear 23 and the drive shaft 21 are driven to cooperate and can rotate under the drive of the drive shaft 21, the rear side of the walking rack 22 is meshed with the gear 23, and the front side of the walking rack 22 is fixedly matched with the headrest cushion 1, the guide assembly 3 includes a sliding bar seat 31 and a sliding bar 32, the sliding bar seat 31 and the sliding bar 32 are respectively connected to the sofa back frame 5 and the headrest cushion 1, and the sliding bar seat 31 and the sliding bar 32 are guided and slidably matched.

[0026] The mating shaft 25 is provided with a transmission portion 251 near one end. Both ends of the pulley 24 are respectively fitted on the transmission portion 251 and the drive shaft 21 , and the other end of the mating shaft 25 is passed through and positioned on the gear 23 .

[0027] The two ends of the mating shaft 25 are provided with mounting parts 252 for rotational connection. The rotational connection can be that the mounting part 252 itself is rotationally set on the mating shaft 25, or the rotational connection can be formed by using accessories such as bearings. The mounting part 252 includes ears 253 extending on both sides of the radial direction.

[0028] The guide assembly 3 includes a shaping plate 33 located at the rear side of the headrest cushion 1. The shaping plate 33 includes a flat connecting surface 331. There are two running racks 22 and two sliding bar seats 31, and they are respectively connected on both sides of the horizontal surface 331.

[0029] Induction switches 34 are provided at both ends of the sliding bar seat 31 in the length direction.

[0030] In this embodiment, as shown in the attached Figure 5 As shown, after the headrest cushion 1 moves upward, a certain distance will be generated between the headrest cushion 1 and the lower backrest 4. For this reason, a connecting piece can be provided between the headrest cushion 1 and the lower backrest 4. During the lifting movement of the headrest cushion 1, the lower backrest 4 can be driven to lift together, as shown in the attached figure. Figure 5 In the figure, the lower backrest 4 indicated by the dotted line will move together with the headrest cushion 1 without leaving any gap, which is more beautiful. The connecting piece can be a zipper, button, etc.

[0031] The second embodiment of the adjustable sofa headrest cushion of the present invention is as follows Figure 6-7 As shown: In this embodiment, in addition to the driving assembly 2 and the guide assembly 3 in the embodiment, the difference is that the lower backrest 4 is fixed, and also includes a back frame 5 and a middle filling mechanism 6. The back frame 5 is supported on the back side of the headrest cushion 1 and the lower backrest 4, and the filling mechanism 6 includes an airbag 61. The airbag 61 is arranged between the headrest cushion 1 and the back frame 5. The rear side of the airbag 61 is connected to the back frame, and the width direction is limited within the back frame to avoid scratching and interference with the walking rack 22. The lower end of the airbag 61 is arranged corresponding to the lower backrest 4, and the airbag 51 can be inflated / deflated as the headrest cushion 1 rises / falls.

[0032] The middle filling mechanism 6 also includes an outer covering 62 and a reel 63. The reel 63 is rotated by an electric drive to better cooperate with the drive component 2 and the middle filling mechanism. During the lifting and lowering of the upper cushion, the airbag 61 is inflated / deflated and the outer covering 62 is rolled up / released in time. The outer covering 62 is used to cover the outside of the airbag 61. The upper end of the outer covering 62 is connected to the bottom of the headrest cushion 1, and the reel 63 is connected to the lower end of the outer covering 62, and the reel 63 can form the release or reeling of the outer covering 62 as the headrest cushion rises / falls. The specific method is that a connecting portion 621 is provided at the lower end of the outer covering 62, and the connecting portion 621 is wound on the reel 63 to form a connection between the outer covering 62 and the reel 63. The outer covering 62 is pulled or relaxed by the reeling connecting portion 621, and the problem of the outer covering 62 being difficult to reel up is avoided.

[0033] The back frame 5 is provided with an inner cushion 51 at a position corresponding to the inner side of the airbag 61 , which elastically abuts against the airbag 61 .

[0034] The above example is only one preferred specific example of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. An adjustable and movable sofa headrest cushion, comprising a headrest cushion, characterized in that: It includes a driving assembly and a guide assembly, the driving assembly includes a driving shaft, a walking rack and a gear, the driving shaft is driven to rotate by a motor, the gear and the driving shaft are in transmission cooperation and can rotate under the drive of the driving shaft, the rear side of the walking rack is meshed with the gear, and the front side of the walking rack is fixedly matched with the headrest cushion, the guide assembly includes a sliding bar seat and a sliding bar, the sliding bar seat and the sliding bar are respectively connected to the sofa back frame and the headrest cushion, and the sliding bar seat and the sliding bar are in guiding sliding cooperation.

2. The adjustable sofa headrest cushion according to claim 1, characterized in that: The driving assembly also includes a pulley and a matching shaft. The matching shaft is provided with a transmission part near one end. The two ends of the pulley are respectively mounted on the transmission part and the driving shaft, and the other end of the matching shaft is penetrated and positioned on the gear.

3. The adjustable sofa headrest cushion according to claim 2, characterized in that: Both ends of the mating shaft are provided with rotatably connected mounting portions, and the mounting portions include ears extending radially on both sides.

4. The adjustable sofa headrest cushion according to claim 1, 2 or 3, characterized in that: The guide assembly includes a shaping plate located at the rear side of the headrest cushion, the shaping plate includes a flat connecting surface, and there are two walking racks and two sliding bar seats, which are respectively connected at both sides of the horizontal surface.

5. The adjustable sofa headrest cushion according to claim 1, 2 or 3, characterized in that: Both ends of the sliding bar seat in the length direction are provided with induction switches.

6. The adjustable sofa headrest cushion according to claim 1, 2 or 3, characterized in that: The utility model comprises a back frame and a middle filling mechanism, wherein the back frame is supported on the rear side of the headrest cushion and the lower backrest, and the filling mechanism comprises an airbag, which is arranged between the headrest cushion and the back frame, and the lower end of the airbag corresponds to the lower backrest. The airbag can be inflated / deflated as the headrest cushion rises / falls.

7. The adjustable sofa headrest cushion according to claim 6, characterized in that: The central filling mechanism includes an outer covering surface, and the outer covering surface is used for covering the outer side of the airbag.

8. The adjustable sofa headrest cushion according to claim 7, characterized in that: The middle filling mechanism includes a reel, the upper end of the outer cover is connected to the bottom of the headrest cushion, and the reel is connected to the lower end of the outer cover. The reel can release or reel the outer cover as the headrest cushion rises or falls.

9. The adjustable sofa headrest cushion according to claim 8, characterized in that: The lower end of the outer covering surface is provided with a connecting portion, and the connecting portion is wound on the reel to form a connection between the outer covering surface and the reel.

10. The adjustable sofa headrest cushion according to claim 6, characterized in that: The back frame is provided with an inner cushion at a position corresponding to the inner side of the airbag, which is elastically in contact with the airbag.

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