Multi-connecting-rod angle adjusting sofa bed

Abstract

The utility model relates to the technical field of sofa beds, in particular to a multi-connecting-rod angle adjusting sofa bed which comprises a chair body, and shell seats capable of being used for auxiliary supporting are assembled on the surfaces of the two side ends of the periphery of the chair body. When the sofa body is used, a servo motor in a shell seat on the outer side of the sofa body can operate, the servo motor operates to conveniently drive a worm to rotate under the operation of a speed reducer A, the worm rotates to be conveniently meshed with a worm gear and drives the worm gear to rotate, and then the worm gear conveniently drives a gear B to rotate; the gear B rotates to be meshed with the gear A and drives the gear A to rotate, the backrest body can rotate, the bending angle between the backrest body and the chair body can be conveniently adjusted, adjustment can be conveniently carried out according to the use requirement, the state of the sofa bed can be conveniently switched, meanwhile, the sofa bed is compact in structure, does not occupy a large space area, and is convenient to use. And the sofa bed can be conveniently placed.

Description

Technical Field

[0001] The utility model relates to the technical field of sofa beds, in particular to a sofa bed with multi-link angle adjustment. Background Art

[0002] With the accelerated development of society and the continuous increase in population, the limited living space has become more obvious. Most families will purchase sofa beds, which are used as sofas in normal times and converted into beds when guests stay overnight. This not only saves money, but also reduces space occupation and increases space utilization. Patent No. CN202121087987.7 discloses a multi-link angle-adjustable sofa bed. The support legs and support rods provide support for the main board to ensure the overall stability of the sofa bed. The sofa cushions are easy to place and replace and clean. Suitable sofa cushions can be placed on the main board. However, since the back of the sofa bed carries a certain amount of structure, and these structures are not convenient to store, the sofa bed cannot be placed against the wall and is easy to occupy more space. To this end, we propose a multi-link angle-adjustable sofa bed. Utility Model Content

[0003] In view of the problems in the prior art, the utility model provides a sofa bed with multi-link angle adjustment.

[0004] The technical solution adopted by the utility model to solve the technical problem is a multi-link angle-adjustable sofa bed, comprising a chair body, both side end surfaces of the chair body periphery are equipped with shell seats for auxiliary support, a backrest body for adjustment is rotatably installed between two groups of the shell seats, and a gear A and a gear B for transmission are rotatably installed inside the shell seats, and the gear A is meshed and connected with the gear B, the gear A is transmission-connected with the backrest body, a worm gear transmission-connected with the gear B is rotatably installed inside the shell seats, and a reducer A for torque conversion is installed inside the shell seats, and a worm transmission-connected with the worm gear is transmission-connected with the worm gear is transmission-connected with the worm gear;

[0005] The bottom surface of the chair body is equipped with a plate seat that can be used for auxiliary support, and the back side of the plate seat is provided with a slide groove that can be used for connection, and there are two groups of slide grooves. A slide plate that can be used for auxiliary support is slidably installed on the inner side of the slide groove, and a screw rod that is threadedly connected to the slide plate is rotatably installed on the inner side of the plate seat. A reducer B that is transmission-connected to the screw rod is installed on the inner side of the plate seat through bolts, and the power input end of the reducer B and the power input end of the reducer A are both equipped with servo motors, and rollers that can be used for auxiliary support are rotatably installed on the bottom surface of the slide plate, and there are multiple groups of rollers.

[0006] By adopting the above technical solution, when the sofa body is used, the servo motor in the outer shell seat of the chair body can be operated, and the servo motor can conveniently drive the worm to rotate under the operation of the reducer A, and the rotation of the worm is convenient to mesh with the worm wheel and drive the worm wheel to rotate, and then the worm wheel conveniently drives the gear B to rotate, and the rotation of the gear B is mutually meshed with the gear A and drives the gear A to rotate, and the backrest body can be rotated, so that the bending angle between the backrest body and the chair body can be adjusted conveniently, so that it is convenient to adjust according to the needs during use, and it is convenient to convert the state of the sofa bed. At the same time, the structure of the sofa bed is relatively compact, and it will not occupy a large space area, so it is convenient to place the sofa bed;

[0007] When the sofa bed is converted into a bed, the servo motor in the plate seat at the bottom of the chair body can be operated. The operation of the servo motor can conveniently drive the screw rod to rotate under the operation of the reducer B, so that the screw rod can be screwed with the slide plate in the inner slide groove of the plate seat, so that the slide plate can slide and move in the slide groove under the action of the screwing thrust, and can extend the slide plate from the slide groove, thereby facilitating auxiliary support for the chair body, improving the stability of the chair body, and allowing people to lie more stably on the surface of the sofa bed.

[0008] Specifically, a battery box for providing power support is assembled on the inner side of the plate base through bolts.

[0009] By adopting the above technical solution, the battery box can conveniently provide power support for the operation of the sofa bed.

[0010] Specifically, both side end surfaces of the outer periphery of the chair body are equipped with armrests that can be used for limiting the position, and the top surfaces of the armrests are provided with grooves that can be used for storage, and the inner side of the groove is equipped with a controller that can be used for operation.

[0011] By adopting the above technical solution, the armrest can improve the comfort of people when using the sofa bed, and the controller in the groove on the surface of the armrest can conveniently control the operation of the sofa bed.

[0012] Specifically, a cover plate that can be used for sealing is assembled on the inner side of the groove through a hinge.

[0013] By adopting the above technical solution, the cover is easy to open and close, which is convenient for protecting the controller in the groove, so that the controller can operate stably and safely.

[0014] Specifically, the inner circumferential surface of the slide groove is provided with concave holes that can be used for limiting, and there are multiple groups of concave holes. The outer circumferential surface of the slide plate is integrally constructed with convex strips that are matched and connected with the concave holes, and there are multiple groups of convex strips.

[0015] By adopting the above technical solution, the convex strips and the concave holes are connected to each other in a fitting manner, so as to improve the stability of the sliding plate in the slide groove when sliding.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The technical solution of the present application, through the design of the shell seat, backrest body, gear A, gear B, reducer A, worm wheel, worm and servo motor, can enable the servo motor in the shell seat outside the chair body to operate when the sofa body is in use. The operation of the servo motor is convenient to drive the worm to rotate under the operation of the reducer A. The rotation of the worm is convenient to mesh with the worm wheel and drive the worm wheel to rotate. Then the worm wheel conveniently drives gear B to rotate. The rotation of gear B meshes with gear A and drives gear A to rotate, and the backrest body can be rotated, which is convenient to adjust the bending angle between the backrest body and the chair body, so as to facilitate adjustment according to the needs during use and convenient conversion of the state of the sofa bed. At the same time, the structure of the sofa bed is relatively compact and will not take up much space, so it is convenient to place the sofa bed.

[0018] 2. The technical solution of the present application, through the design of the plate seat, reducer B, slide groove, slide plate and screw rod, can enable the servo motor in the plate seat at the bottom of the chair body to operate when the sofa bed is converted into a bed body. The operation of the servo motor can conveniently drive the screw rod to rotate under the operation of the reducer B, so that the screw rod can be screwed with the slide plate in the slide groove inside the plate seat, so that the slide plate can slide and displace in the slide groove under the action of the screwing thrust, and can extend the slide plate from the slide groove, thereby facilitating auxiliary support for the chair body, improving the stability of the chair body, and allowing people to lie more stably on the surface of the sofa bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is an axonometric drawing of the utility model;

[0021] Figure 2 It is a schematic plan view of the inner structure of the shell seat of the utility model;

[0022] Figure 3 This is a schematic diagram of the inner structure of the plate seat of the utility model;

[0023] In the figure: 1. chair body; 2. shell base; 3. backrest body; 4. gear A; 5. gear B; 6. worm gear; 7. worm; 8. reducer A; 9. plate base; 10. reducer B; 11. screw; 12. slide groove; 13. slide plate; 14. roller; 15. groove; 16. convex strip; 17. battery box; 18. servo motor; 19. armrest; 20. concave hole; 21. controller; 22. cover plate. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] See also Figure 1-3 The embodiment of the utility model provides a technical solution: a multi-link angle-adjustable sofa bed, comprising a chair body 1, both side end surfaces of the outer periphery of the chair body 1 are equipped with shell seats 2 for auxiliary support, a backrest body 3 for adjustment is rotatably installed between two sets of shell seats 2, and a gear A4 and a gear B5 for transmission are rotatably installed inside the shell seat 2, and the gear A4 is meshed and connected with the gear B5, and the gear A4 is transmission-connected with the backrest body 3, a worm gear 6 transmission-connected with the gear B5 is rotatably installed inside the shell seat 2, and a reducer A8 for converting torque is installed inside the shell seat 2, and the power output end of the reducer A8 is equipped with a gear connected to the worm gear 6. The worm gear 7 is connected to each other by transmission; the bottom surface of the chair body 1 is equipped with a plate seat 9 which can be used for auxiliary support, and the back side of the plate seat 9 is provided with a slide groove 12 which can be used for connection, and there are two groups of slide grooves 12, a slide plate 13 which can be used for auxiliary support is slidably installed on the inner side of the slide groove 12, and a screw rod 11 which is screwed and connected to the slide plate 13 is rotatably installed on the inner side of the plate seat 9, a reducer B10 which is transmission connected to the screw rod 11 is assembled on the inner side of the plate seat 9 by bolts, and the power input end of the reducer B10 and the power input end of the reducer A8 are both equipped with servo motors 18, and rollers 14 which can be used for auxiliary support are rotatably installed on the bottom surface of the slide plate 13, and there are multiple groups of rollers 14.

[0026] When the sofa body is in use, the servo motor 18 in the outer shell seat 2 of the chair body 1 can be operated. The operation of the servo motor 18 is convenient to drive the worm 7 to rotate under the operation of the reducer A8. The rotation of the worm 7 is convenient to mesh with the worm wheel 6 and drive the worm wheel 6 to rotate. Then the worm wheel 6 is convenient to drive the gear B5 to rotate. The gear B5 rotates and meshes with the gear A4 and drives the gear A4 to rotate, and the backrest body 3 can be rotated, so that the bending angle between the backrest body 3 and the chair body 1 can be adjusted conveniently, so that it is convenient to adjust according to the needs during use, and it is convenient to convert the state of the sofa bed. At the same time, the structure of the sofa bed is relatively compact, which will not occupy a large space area, and it is convenient to place the sofa bed;

[0027] When the sofa bed is converted into a bed body, the servo motor 18 in the plate seat 9 at the bottom of the chair body 1 can be operated. The operation of the servo motor 18 can conveniently drive the screw rod 11 to rotate under the operation of the reducer B10, so that the screw rod 11 can be screwed with the slide plate 13 in the inner slide groove 12 of the plate seat 9, so that the slide plate 13 can slide and displace in the slide groove 12 under the action of the screwing thrust, and can extend the slide plate 13 from the slide groove 12, so as to facilitate auxiliary support for the chair body 1, improve the stability of the chair body 1, and enable people to lie on the surface of the sofa bed more stably.

[0028] like Figure 3 As shown, a battery box 17 for providing power support is assembled on the inner side of the plate base 9 by means of bolts.

[0029] When in use, the battery box 17 conveniently provides power support for the operation of the sofa bed.

[0030] like Figure 1 As shown, both side end surfaces of the outer periphery of the chair body 1 are equipped with armrests 19 for limiting the position, and the top surface of the armrest 19 is provided with a groove 15 for storage, and the inner side of the groove 15 is equipped with a controller 21 for operation.

[0031] When in use, the armrest 19 facilitates improving the comfort of people when using the sofa bed, and the controller 21 in the groove 15 on the surface of the armrest 19 facilitates the operation of the sofa bed.

[0032] like Figure 1 As shown, a cover plate 22 for sealing is installed on the inner side of the groove 15 via hinges.

[0033] When in use, the cover plate 22 is easy to open and close, so as to protect the controller 21 in the groove 15, so that the controller 21 can operate stably and safely.

[0034] like Figure 3 As shown, the inner surface of the slide groove 12 is provided with concave holes 20 for limiting, and there are multiple groups of concave holes 20. The outer surface of the slide plate 13 is integrally constructed with convex strips 16 that fit and connect with the concave holes 20, and there are multiple groups of convex strips 16.

[0035] When in use, the convex strip 16 and the concave hole 20 are fitted and connected with each other, so as to improve the stability of the sliding plate 13 in the sliding groove 12 when sliding.

[0036] The working principle and use process of the utility model are as follows: when using, first install the corresponding structural components in the appropriate position, and when the sofa body is used, the servo motor 18 in the outer shell seat 2 of the chair body 1 can be operated, and the operation of the servo motor 18 is convenient to drive the worm 7 to rotate under the operation of the reducer A8, and the rotation of the worm 7 is convenient to mesh with the worm wheel 6 and drive the worm wheel 6 to rotate, and then the worm wheel 6 is convenient to drive the gear B5 to rotate, and the gear B5 rotates and meshes with the gear A4 and drives the gear A4 to rotate, and enables the backrest body 3 to rotate, so as to facilitate the adjustment of the bending angle between the backrest body 3 and the chair body 1, so as to facilitate the adjustment according to the The sofa bed can be adjusted according to the needs during use to facilitate the conversion of the state of the sofa bed. When the sofa bed is converted into a bed, the servo motor 18 in the plate seat 9 at the bottom of the chair body 1 can be operated. The operation of the servo motor 18 is convenient to drive the screw rod 11 to rotate under the operation of the reducer B10, so that the screw rod 11 can be screwed with the slide plate 13 in the inner slide groove 12 of the plate seat 9, so that the slide plate 13 can slide and displace in the slide groove 12 under the action of the screwing thrust, and the slide plate 13 can be extended from the slide groove 12, so as to facilitate the auxiliary support of the chair body 1, improve the stability of the chair body 1, and enable people to lie on the surface of the sofa bed more stably.

[0037] In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do 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 understood as a limitation on the present utility model.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the present utility model, unless otherwise clearly specified and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection;

[0039] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-link angle-adjustable sofa bed, characterized in that: The invention comprises a chair body (1), wherein both side end surfaces of the outer periphery of the chair body (1) are equipped with a shell seat (2) for auxiliary support, a backrest body (3) for adjustment is rotatably installed between two groups of the shell seats (2), and a gear A (4) and a gear B (5) for transmission are rotatably installed inside the shell seat (2), and the gear A (4) is meshingly connected with the gear B (5), and the gear A (4) is transmission-connected with the backrest body (3), a worm gear (6) transmission-connected with the gear B (5) is rotatably installed inside the shell seat (2), and a reducer A (8) for converting torque is installed inside the shell seat (2), and a worm (7) transmission-connected with the worm gear (6) is installed at the power output end of the reducer A (8); The bottom surface of the chair body (1) is equipped with a plate seat (9) for auxiliary support, and the back surface of the plate seat (9) is provided with a slide groove (12) for connection, and there are two groups of slide grooves (12). A slide plate (13) for auxiliary support is slidably installed inside the slide groove (12), and a screw rod (11) screwed and connected to the slide plate (13) is rotatably installed inside the plate seat (9). A reducer B (10) connected to the screw rod (11) is installed inside the plate seat (9) through bolts, and the power input end of the reducer B (10) and the power input end of the reducer A (8) are both equipped with servo motors (18). Rollers (14) for auxiliary support are rotatably installed on the bottom surface of the slide plate (13), and there are multiple groups of rollers (14).

2. The multi-link angle-adjustable sofa bed according to claim 1, characterized in that: The inner side of the plate seat (9) is assembled with a battery box (17) for providing electric power support by means of bolts.

3. The multi-link angle-adjustable sofa bed according to claim 1, characterized in that: The outer side end surfaces of the chair body (1) are both equipped with armrests (19) that can be used for limiting the position, and the top surface of the armrest (19) is provided with a groove (15) that can be used for storage, and the inner side of the groove (15) is equipped with a controller (21) that can be used for operation.

4. The multi-link angle-adjustable sofa bed according to claim 3, characterized in that: The inner side of the groove (15) is equipped with a cover plate (22) which can be used for sealing via a hinge.

5. The multi-link angle-adjustable sofa bed according to claim 1, characterized in that: The inner peripheral surface of the slide groove (12) is provided with concave holes (20) that can be used for limiting, and there are multiple groups of concave holes (20). The outer peripheral surface of the slide plate (13) is integrally constructed with convex strips (16) that are matched and connected with the concave holes (20), and there are multiple groups of convex strips (16).

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