Multi-purpose adjustable soft sofa bed

Abstract

The utility model relates to a kind of multi-purpose adjustable soft sofa bed, comprising: base, for providing support;Seat bag, it is fixedly connected at the top of base;Backrest, it is rotatably connected in the rear side of seat bag, for providing back support, backrest rear side is equipped with installation groove.The utility model relates to the technical field of sofa bed.A kind of multi-purpose adjustable soft sofa bed, by the adjusting structure being set, can utilize the mode of the ball rolling in screw rail groove to adjust the distance of screw rod into sleeve, to change the support length of adjusting structure, realize the adjustment of backrest inclination, and since helical groove is continuous, ball can stay in the arbitrary position of helical groove, thus backrest can be adjusted inclination arbitrarily, so that user obtains more selection, can effectively improve the experience of user.

Description

Technical Field

[0001] This utility model relates to the technical field of sofa beds, and in particular to a multi-purpose adjustable upholstered sofa bed. Background Technology

[0002] A sofa bed is a multifunctional piece of furniture that can be used as a sofa or converted into a bed. Its design aims to meet the needs of modern living spaces, especially in small apartments, where it effectively saves space and provides additional sleeping area.

[0003] In the prior art, in order to improve comfort and provide users with more space when resting, the backrest of a sofa bed is usually adjustable. However, conventional angle adjustments are multi-stage, which limits the adjustable range of the sofa bed. This forces users to find the most comfortable angle from the adjustment settings provided by the manufacturer, affecting the user experience. Utility Model Content

[0004] This application provides a multi-purpose adjustable upholstered sofa bed, which can increase the number of angle adjustment levels for users, allowing users to freely decide the backrest angle based on their own experience, greatly improving the user experience.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A multi-purpose adjustable upholstered sofa bed, comprising:

[0007] The base is used to provide support;

[0008] The seat is fixedly connected to the top of the base;

[0009] The backrest is rotatably connected to the rear of the seat to provide back support, and a mounting groove is provided on the rear of the backrest.

[0010] An adjustment mechanism, located between the backrest and the seat, is used to adjust the backrest tilt angle. The adjustment mechanism includes a sleeve, a screw, and a pressing component. The sleeve is rotatably connected in a mounting groove, and a piston is slidably connected inside the sleeve. The bottom of the piston is fixedly connected to the screw, and the bottom of the screw extends out of the sleeve and is connected to a shaft rotatably connected to the seat and the backrest. The bottom of the sleeve is provided with balls that contact the spiral groove of the screw, and the top of the sleeve is connected to a pressing component for fixing the sleeve.

[0011] Furthermore, the extrusion component includes a slide plate and a spring. The slide plate is slidably connected in the mounting groove. The bottom of the slide plate has a receiving groove for accommodating the sleeve. The top of the slide plate is fixedly connected to the mounting groove. The spring pushes the slide plate down to make the sleeve snap into the receiving groove.

[0012] Furthermore, a pull rod is rotatably connected to the top of the mounting slot, and a connecting rod is rotatably connected to the side of the pull rod near the slide plate, while the side of the connecting rod away from the pull rod is rotatably connected to the slide plate.

[0013] Furthermore, the outer wall of the sleeve is provided with an air hole one for venting, and a baffle plate is hinged to the inner side of the air hole one. The baffle plate is provided with an air hole two at the position corresponding to the air hole one.

[0014] Furthermore, the top rear side of the base extends rearward to form a support portion for supporting the backrest.

[0015] Furthermore, grooves are provided on the left and right rear edges of the backrest, and a sliding sleeve is fixedly connected in the groove. A sliding rod is slidably connected to the bottom of the sliding sleeve, and the bottom of the sliding rod is connected to the shaft that rotatably connects the seat and the backrest.

[0016] In summary, this utility model has at least one of the following beneficial technical effects:

[0017] 1. This multi-purpose adjustable upholstered sofa bed, through its adjustable structure, allows the distance the screw extends into the sleeve to be adjusted by the rolling of ball bearings within the screw track groove. This changes the support length of the adjustable structure and enables the adjustment of the backrest tilt angle. Since the spiral groove is continuous, the ball bearings can stop at any position within the spiral groove, thus allowing the backrest to be tilted at any angle, providing users with more options and effectively improving the user experience.

[0018] 2. This multi-purpose adjustable upholstered sofa bed, through the cooperation of a piston with air hole one, a baffle and air hole two, can provide resistance when adjusting the backrest, making the adjustment of the backrest smoother and more stable, thereby improving the accuracy of the backrest tilt adjustment and enhancing the practicality of the upholstered sofa bed. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural schematic diagram of a multi-purpose adjustable upholstered sofa bed according to the present invention.

[0021] Figure 2 This is a schematic diagram of the backrest of a multi-purpose adjustable upholstered sofa bed of this utility model when it is laid flat.

[0022] Figure 3This is a schematic diagram of the rear view structure of the backrest in a multi-purpose adjustable upholstered sofa bed according to the present invention.

[0023] Figure 4 This is a schematic diagram of the adjustment structure in a multi-purpose adjustable upholstered sofa bed according to the present invention.

[0024] Figure 5 This is a schematic diagram of the internal structure of the sleeve in a multi-purpose adjustable upholstered sofa bed according to the present invention.

[0025] Figure 6 This is a schematic diagram showing the state of a multi-purpose adjustable upholstered sofa bed when the pull rod is pulled.

[0026] In the diagram, 1. Base; 2. Seat cushion; 3. Backrest; 4. Adjustment mechanism; 41. Sleeve; 42. Screw; 43. Extrusion part; 431. Slide plate; 432. Spring; 5. Mounting groove; 6. Ball bearing; 7. Receiving groove; 8. Pull rod; 9. Connecting rod; 10. Air hole one; 11. Baffle plate; 12. Air hole two; 13. Support part; 14. Groove; 15. Sliding sleeve; 16. Sliding rod; 17. Piston. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Example:

[0029] Reference Figures 1-6 This utility model discloses a multi-purpose adjustable upholstered sofa bed, comprising:

[0030] Base 1, used to provide support;

[0031] The seat 2 is fixedly connected to the top of the base 1;

[0032] The backrest 3 is rotatably connected to the rear side of the seat 2 to provide back support. The backrest 3 has a mounting groove 5 on its rear side.

[0033] Adjustment structure 4 is disposed between backrest 3 and seat 2 for adjusting the tilt angle of backrest 3. Adjustment structure 4 includes sleeve 41, screw 42 and pressing member 43. Sleeve 41 is rotatably connected in mounting groove 5. Piston 17 is slidably connected in sleeve 41. Screw 42 is fixedly connected to the bottom of piston 17. The bottom of screw 42 extends out of sleeve 41 and is rotatably connected to the shaft of seat 2 and backrest 3. Ball 6 is provided at the bottom of sleeve 41 in contact with the spiral groove of screw 42. Pressing member 43 for fixing sleeve 41 is connected to the top of sleeve 41.

[0034] In this embodiment, observation Figure 1It can be seen that by setting a base 1, a seat cushion 2 is fixedly connected to the top of the base 1, and a backrest 3 is rotatably connected to the back of the seat cushion 2, it can be used to provide a resting place for users.

[0035] To improve comfort and provide users with more space when resting, sofa beds typically have adjustable backrests. However, conventional angle adjustments are usually multi-stage, which limits the adjustable range of the sofa bed. This forces users to find the most comfortable angle from the adjustment settings provided by the manufacturer, thus affecting the user experience.

[0036] Therefore, observe Figure 3 It can be observed that a mounting groove 5 is provided on the rear side of the backrest 3, and an adjustment structure 4 is provided inside the mounting groove 5. Looking further... Figure 4 It can be seen that the adjustment structure 4 includes a sleeve 41, a screw 42, and an extrusion member 43. The sleeve 41 is rotatably connected in the mounting groove 5. A piston 17 is slidably connected in the sleeve 41. The bottom of the piston 17 is fixedly connected to the screw 42. The bottom of the screw 42 extends out of the sleeve 41 and is rotatably connected to the shaft of the seat 2 and the backrest 3. The bottom of the sleeve 41 is provided with a ball 6 that contacts the spiral groove of the screw 42. The top of the sleeve 41 is connected to the extrusion member 43 for fixing the sleeve 41.

[0037] When it is necessary to adjust the backrest 3, simply pull the pressing part 43 to unlock the sleeve 41. When the sleeve 41 is pressed down, the ball 6 will roll on the track groove of the guide screw 42, thereby rotating the sleeve 41. At this time, the screw 42 slides into the sleeve 41, which achieves the effect of adjusting the tilt angle of the backrest 3.

[0038] Since the adjustment of the backrest 3 is achieved by the ball bearing 6 rolling in the spiral groove of the screw 42, and the spiral groove is a continuous track groove, when it is necessary to fix the backrest 3 to adjust the tilt angle, it is only necessary to release the squeezing member 43, so that the squeezing member 43 fixes the sleeve 41 to prevent the sleeve 41 from rotating, and the backrest 3 can be fixed at the current angle, so that the backrest 3 of the upholstered sofa bed can stay in any position, thereby effectively improving the comfort of the upholstered sofa bed when in use.

[0039] In a further preferred embodiment of this utility model, such as Figure 4 and Figure 6As shown, the extrusion component 43 includes a slide plate 431 and a spring 432. The slide plate 431 is slidably connected in the mounting groove 5. The bottom of the slide plate 431 is provided with a receiving groove 7 for accommodating the sleeve 41. The top of the slide plate 431 is fixedly connected to the mounting groove 5. The spring 432 pushes the slide plate 431 down to make the sleeve 41 engage in the receiving groove 7. When it is necessary to adjust the angle of the backrest 3, the slide plate 431 can be pulled up to make the sleeve 41 no longer in contact with the slide plate 431, so that the sleeve 41 can rotate freely to adjust the tilt angle of the backrest 3.

[0040] Once the tilt angle adjustment is complete, the force applied to the slide plate 431 is released, and the slide plate 431 will return to its original position under the push of the spring 432. This will also apply pressure to the top of the sleeve 41, increasing the resistance to the rotation of the sleeve 41, thereby fixing the backrest 3 and making the backrest 3 more stable when suspended.

[0041] To improve the friction between the slide plate 431 and the sleeve 41, a rough friction surface can be machined on the inner top wall of the receiving groove 7, thereby effectively improving the friction between the slide plate 431 and the sleeve 41 and ensuring the stability of the fixation. To ensure its service life, using high-hardness, friction-resistant materials is a common practice. Additionally, a protective layer can be added to its surface, but these details will not be elaborated upon here.

[0042] In a further preferred embodiment of this utility model, such as Figure 6 As shown, a pull rod 8 is rotatably connected to the top of the mounting slot 5. A connecting rod 9 is rotatably connected to the side of the pull rod 8 near the slide plate 431. The side of the connecting rod 9 away from the pull rod 8 is rotatably connected to the slide plate 431. When it is necessary to adjust the tilt angle of the backrest 3, simply reach your hand to the back of the backrest 3 and feel for the pull rod 8. Then, pull the pull rod 8 directly to move the connecting rod 9 and the slide plate 431 upwards, making the adjustment of the backrest 3 simpler and more convenient.

[0043] In a further preferred embodiment of this utility model, such as Figure 5 As shown, the outer wall of the sleeve 41 is provided with an air hole 10 for venting. When the screw 42 enters the sleeve 41, the piston 17 compresses the air in the sleeve 41, thereby allowing the air to be discharged through the air hole 10. Since the air is discharged slowly, the air can provide resistance to the piston 17, making the adjustment of the backrest 3 smoother and more stable. It can be used to precisely adjust the tilt angle of the backrest 3.

[0044] By hinged a baffle 11 to the inside of the air hole 10, and opening an air hole 12 at the position of the baffle 11 corresponding to the air hole 10, when the backrest 3 is reset, the piston 17 stretches the cavity inside the sleeve 41 to draw in air. At this time, when the air flows into the sleeve 41 through the air hole 10, it will push up the baffle 11, increasing the air entry cross section, thereby increasing the air entry speed and reducing the resistance applied to the piston 17, thus making the backrest 3 reset more efficiently.

[0045] In a further preferred embodiment of this utility model, such as Figure 2 As shown, the top rear side of the base 1 extends rearward to form a support part 13 for supporting the backrest 3. This allows the backrest 3 to be laid flat, and the support part 13 provides support for the backrest 3, making the upholstered sofa bed more stable when in use.

[0046] In a further preferred embodiment of this utility model, such as Figure 3 As shown, grooves 14 are provided on the left and right edges of the backrest 3. A sliding sleeve 15 is fixedly connected in the groove 14. A sliding rod 16 is slidably connected to the bottom of the sliding sleeve 15. The bottom of the sliding rod 16 is connected to the shaft that rotatably connects the seat cushion 2 and the backrest 3, which can make the rotation between the backrest 3 and the seat cushion 2 smoother and more stable, thereby improving the stability of the upholstered sofa bed.

[0047] The implementation principle of the above embodiment is as follows: when it is necessary to adjust the tilt angle of the backrest 3, simply pull the lever 8 to move the slide plate 431 upward to unlock the sleeve 41. At this time, only pressure needs to be applied to the backrest 3 to adjust the angle of the backrest 3.

[0048] After the angle adjustment is completed, release the lever 8, and the slide plate 431 resets and locks the sleeve 41. At this time, the sleeve 41 cannot rotate, so that the ball 6 cannot move in the track groove of the screw 42. At this time, the sleeve 41 and the screw 42 cooperate to provide support for the backrest 3, making the backrest support more stable.

[0049] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A multi-purpose adjustable upholstered sofa bed, characterized in that, include: Base (1), used to provide support; The seat (2) is fixedly connected to the top of the base (1); The backrest (3) is rotatably connected to the rear side of the seat (2) to provide back support. The backrest (3) has a mounting groove (5) on the rear side. An adjustment structure (4) is set between the backrest (3) and the seat (2) for adjusting the tilt angle of the backrest (3). The adjustment structure (4) includes a sleeve (41), a screw (42) and an extruder (43). The sleeve (41) is rotatably connected in the mounting groove (5). A piston (17) is slidably connected in the sleeve (41). The bottom of the piston (17) is fixedly connected to the screw (42). The bottom of the screw (42) extends out of the sleeve (41) and is connected to the shaft that rotatably connects the seat (2) and the backrest (3). The bottom of the sleeve (41) is provided with a ball (6) that contacts the spiral groove of the screw (42). The top of the sleeve (41) is connected to an extruder (43) for fixing the sleeve (41).

2. The multi-purpose adjustable upholstered sofa bed according to claim 1, characterized in that, The extrusion member (43) includes a slide plate (431) and a spring (432). The slide plate (431) is slidably connected in the mounting groove (5). The bottom of the slide plate (431) is provided with a receiving groove (7) for accommodating the sleeve (41). The top of the slide plate (431) is fixedly connected to the mounting groove (5). The spring (432) pushes the slide plate (431) down so that the sleeve (41) is inserted into the receiving groove (7).

3. A multi-purpose adjustable upholstered sofa bed according to claim 2, characterized in that, A pull rod (8) is rotatably connected to the top of the mounting groove (5). A connecting rod (9) is rotatably connected to the side of the pull rod (8) near the slide plate (431). The side of the connecting rod (9) away from the pull rod (8) is rotatably connected to the slide plate (431).

4. A multi-purpose adjustable upholstered sofa bed according to claim 3, characterized in that, The outer wall of the sleeve (41) is provided with an air hole 1 (10) for venting. A baffle (11) is hinged to the inner side of the air hole 1 (10). An air hole 2 (12) is provided on the baffle (11) at the position corresponding to the air hole 1 (10).

5. A multi-purpose adjustable upholstered sofa bed according to claim 4, characterized in that, The top rear side of the base (1) extends rearward to form a support (13) for supporting the backrest (3).

6. A multi-purpose adjustable upholstered sofa bed according to claim 5, characterized in that, The backrest (3) has a groove (14) on the left and right edges of the rear side. A sliding sleeve (15) is fixedly connected in the groove (14). A sliding rod (16) is slidably connected to the bottom of the sliding sleeve (15). The bottom of the sliding rod (16) is connected to the shaft that is rotatably connected to the seat (2) and the backrest (3).

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