Electric chair with adjustable backrest

Abstract

The utility model provides an electric chair with an adjustable backrest, which comprises a base assembly and a backrest assembly, the backrest assembly comprises a driving part, a follow-up component, a transmission rod and a backrest side plate, the driving part is connected with the transmission rod and the follow-up component, the follow-up component is connected with the backrest side plate, the base assembly is hinged with the follow-up component, and the base assembly is hinged with the follow-up component. The driving component drives the follow-up assembly to move through the transmission rod, the follow-up assembly drives the backrest side plate to move, and the backrest side plate tilts upwards or falls downwards under the acting force of the follow-up assembly. The purpose that the backrest can be independently adjusted can be achieved, and various posture requirements of a user are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric chair technical field especially relates to a backrest adjustable electric chair. BACKGROUND

[0002] At present, the adjustment mode of the existing electric sofa framework is mostly one-key lying flat mode, the backrest and the leg support are linked to adjust and cannot be adjusted individually, which cannot meet the sitting and lying needs of all people.

[0003] Therefore, it is necessary to provide a backrest adjustable electric chair to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model discloses a backrest adjustable electric chair, which can realize independent adjustment of the backrest and is suitable for various posture needs of users.

[0005] In order to achieve the above purpose, the technical scheme provided by the utility model is as follows: a backrest adjustable electric chair comprises a base assembly and a backrest assembly, the backrest assembly comprises a driving component, a follower assembly, a transmission rod and a backrest side plate, the driving component is connected with the transmission rod and the follower assembly, the follower assembly is connected with the backrest side plate, the base assembly is hinged with the follower assembly, the driving component drives the follower assembly to move through the transmission rod, the follower assembly drives the backrest side plate to move, and the backrest side plate is raised upward or laid down under the action force of the follower assembly.

[0006] Preferably, the follower assembly comprises a backrest rotating plate, a backrest angle adjuster and a backrest lower fixed plate, the transmission rod is connected with the backrest rotating plate and the backrest angle adjuster, and the backrest rotating plate and the backrest lower fixed plate are respectively installed on the two sides of the backrest angle adjuster.

[0007] Preferably, the backrest side plate is connected with the backrest rotating plate, and the backrest lower fixed plate is hinged with the base assembly.

[0008] Preferably, the outer side of the backrest side plate and the outer side of the backrest lower fixed plate are both formed with a clamping part, the follower assembly further comprises a first quick plug and a second quick plug, the first quick plug is inserted in the clamping part of the backrest side plate and fixedly installed with the backrest side plate, and the second quick plug is inserted in the clamping part of the backrest lower fixed plate and fixedly installed with the backrest lower fixed plate.

[0009] Preferably, the backrest adjustable electric chair further comprises a first connecting rod and a second connecting rod, the first connecting rod is inserted in one end of the backrest side plate and the middle part of the backrest rotating plate, and the second connecting rod is inserted in one end of the backrest lower fixed plate.

[0010] Preferably, the backrest rotating plate is provided with a limiting post on the side close to the backrest lower fixing plate, the backrest lower fixing plate is provided with a mounting port close to the position of the backrest rotating plate, and the mounting port is provided with a limiting switch.

[0011] Preferably, the backrest-adjustable electric chair further comprises an adjusting switch, and the driving component and the limiting switch are electrically connected with the adjusting switch.

[0012] Compared with the prior art, the backrest-adjustable electric chair has the beneficial effects that: 1) the backrest can be independently adjusted, which is suitable for various posture requirements of users, thereby meeting the adjustment requirements of different people in the lying or normal sitting posture, and the electric adjustment mode saves time and effort, greatly improving the satisfaction and comfort of consumers.

[0013] Other features and advantages of the present application will be set forth in the descriptions below, and in part will be apparent from the descriptions, or can be learned by practice of the present application. The features and advantages of the present application can be realized and obtained by means of the instruments and combinations particularly pointed out in the appended claims. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0015] Figure 1 A perspective view of the backrest-adjustable electric chair provided by the present application is shown.

[0016] Figure 2 A partial structure schematic view of the backrest-adjustable electric chair is shown. Figure 1 A partial structure schematic view of the backrest-adjustable electric chair is shown.

[0017] Figure 3 A partial structure schematic view of the backrest-adjustable electric chair is shown. Figure 2 A partial structure schematic view of the backrest-adjustable electric chair is shown.

[0018] Reference signs: 1, base assembly; 2, backrest assembly; 21, driving component; 22, follow-up assembly; 23, transmission rod; 24, backrest side plate; 25, backrest rotating plate; 251, limiting post; 26, backrest adjuster; 27, backrest lower fixing plate; 271, mounting port; 272, limiting switch; 28, first quick plug; 29, second quick plug; 3, clamping portion; 4, adjusting switch; 5, first connecting rod; 6, second connecting rod. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and beneficial technical effects of the utility model clearer and more understandable, the utility model will be further described in detail below in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described in the specification are only for the purpose of explaining the utility model and are not intended to limit the utility model.

[0020] It should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0021] It should also be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second", "third" can explicitly or implicitly include one or more features. In addition, the meaning of "multiple" and "several" is two or more, unless otherwise explicitly specified.

[0023] Please refer to Figures 1 to 3 The utility model provides a backrest adjustable electric chair, include: base assembly 1 and backrest assembly 2, backrest assembly 2 includes drive component 21, follow-up assembly 22, transmission rod 23 and backrest side plate 24, drive component 21 is connected with transmission rod 23 and follow-up assembly 22, follow-up assembly 22 is connected with backrest side plate 24, base assembly 1 is hinged with follow-up assembly 22, drive component 21 drives follow-up assembly 22 to move through transmission rod 23, follow-up assembly 22 drives backrest side plate 24 to move, backrest side plate 24 is tilted up or lies down under the action of follow-up assembly 22.

[0024] Thus, after the driving component 21 is started, the driving component 21 drives the follower assembly 22 to move through the transmission rod 23, the follower assembly 22 drives the backrest side plate 24 to move, and the backrest side plate 24 is tilted upward or laid down under the action of the follower assembly 22, so that the backrest can be independently adjusted, and the electric chair is suitable for various postures (for example, lying and sitting) of the user.

[0025] It should be noted that in the embodiment, the driving component 21 is a backrest adjusting motor.

[0026] In a preferred embodiment, the follower assembly 22 includes a backrest rotating plate 25, a backrest angle adjuster 26, and a backrest lower fixed plate 27, the transmission rod 23 is connected with the backrest rotating plate 25 and the backrest angle adjuster 26, and the backrest rotating plate 25 and the backrest lower fixed plate 27 are respectively installed on both sides of the backrest angle adjuster 26. Thus, when the transmission rod 23 rotates, the backrest angle adjuster 26 is driven to rotate, so as to adjust the angle of the backrest rotating plate 25 and the backrest lower fixed plate 27.

[0027] In a preferred embodiment, the backrest side plate 24 is connected with the backrest rotating plate 25, and the backrest lower fixed plate 27 is hinged with the base assembly 1. Thus, when the backrest angle adjuster 26 rotates to adjust the angle of the backrest rotating plate 25 and the backrest lower fixed plate 27, the angle of the backrest side plate 24 and the base assembly 1 will also change, so as to change the angle of the backrest assembly 2 and the base assembly 1.

[0028] In a preferred embodiment, the backrest rotating plate 25 is provided with a limiting column 251 on the side close to the backrest lower fixed plate 27, the backrest lower fixed plate 27 is provided with a mounting hole 271 close to the backrest rotating plate 25, the mounting hole 271 is provided with a limiting switch 272, and the limiting column 251 is clamped in the limiting switch 272.

[0029] Through the cooperation of the limiting column 251 and the limiting switch 272, the adjusting angle of the backrest rotating plate 25 and the backrest lower fixed plate 27 is limited, and when the limiting column 251 moves to the limit position (i.e., the maximum movement angle, which can be between 0° and 30°), the limiting switch 272 limits the limiting column 251 from continuously moving to the limit position.

[0030] In a preferred embodiment, the backrest-adjustable electric chair further includes an adjusting switch 4, the driving component 21 and the limiting switch 272 are electrically connected with the adjusting switch 4, and the driving component 21 can be controlled to start or stop through the adjusting switch 4.

[0031] When the angle of the backrest assembly 2 needs to be adjusted, the operation of the adjusting switch 4 outputs a control signal to the driving component 21 to make the driving component 21 work (the driving component 21 rotates forward or reversely), and after the driving component 21 is started, the driving component 21 drives the backrest rotating plate 25 and the backrest lower fixed plate 27 of the follow-up assembly 22 to move through the transmission rod 23, and then the angle of the backrest side plate 24 and the base assembly 1 is adjusted; when the limiting column 251 moves to the limit position, the limiting switch 272 will limit the limiting column 251 from continuing to move to the limit position, and stop the driving component 21 from working by outputting a control signal to the driving component 21 through the operation of the adjusting switch 4.

[0032] In a preferred embodiment, the outer side of the backrest side plate 24 and the outer side of the backrest lower fixed plate 27 are both formed with a clamping part 3 in a U-shaped cross section, and the follow-up assembly 22 further comprises a first quick plug 28 and a second quick plug 29, the first quick plug 28 is inserted into the clamping part 3 of the backrest side plate 24 and is fixedly installed with the backrest side plate 24, and the second quick plug 29 is inserted into the clamping part 3 of the backrest lower fixed plate 27 and is fixedly installed with the backrest lower fixed plate 27. Through such an installation mode, the strength of the backrest side plate 24 and the backrest lower fixed plate 27 can be increased.

[0033] In a preferred embodiment, the backrest-adjustable electric chair further comprises a first connecting rod 5 and a second connecting rod 6, the first connecting rod 5 is inserted into one end of the backrest side plate 24 and the middle part of the backrest rotating plate 25, and the second connecting rod 6 is inserted into one end of the backrest lower fixed plate 27.

[0034] It should be noted that in the present embodiment, the number of the backrest side plate 24, the backrest rotating plate 25, the backrest adjuster 26 and the backrest lower fixed plate 27 is two; the two backrest side plates 24 are distributed in opposite directions, the first connecting rod 5 is inserted between the two backrest side plates 24; the two backrest rotating plates 25 are respectively connected to the outer sides of the two backrest side plates 24, and the second connecting rod 6 is inserted between the two backrest lower fixed plates 27. Through such an installation mode, when the angle of the backrest assembly 2 and the base assembly 1 is adjusted, the applied force is more balanced.

[0035] In use, the operation of the adjusting switch 4 outputs a control signal to the driving component 21 to make the driving component 21 work (the driving component 21 rotates forward or reversely), and after the driving component 21 is started, the driving component 21 drives the backrest rotating plate 25 and the backrest lower fixed plate 27 of the follow-up assembly 22 to move through the transmission rod 23, and then the angle of the backrest side plate 24 and the base assembly 1 is adjusted; when the limiting column 251 moves to the limit position (i.e. the maximum movement angle, which can be between -0° and 30°), the limiting switch 272 will limit the limiting column 251 from continuing to move to the limit position, and stop the driving component 21 from working by outputting a control signal to the driving component 21 through the operation of the adjusting switch 4.

[0036] Thus, by adjusting the switch 4 to send control signals, the angle of the backrest assembly 2 can also be adjusted independently in the lying or sitting posture, which can meet the adjustment needs of different people in the lying or normal sitting posture, and the electric adjustment mode saves time and effort, greatly improving the satisfaction and comfort of consumers.

[0037] The utility model is not limited to the description in the specification and the embodiment, therefore, other advantages and modifications can be easily realized by those skilled in the art, and the utility model is not limited to specific details, representative equipment and the drawing examples shown and described here without departing from the spirit and scope of the general concept defined by the claims and equivalent range.

Claims

1. An electrically powered chair with adjustable backrest, characterized in that, The application relates to a back-adjustable electric chair, which comprises a base assembly (1) and a backrest assembly (2), wherein the backrest assembly (2) comprises a driving part (21), a following assembly (22), a transmission rod (23) and a backrest side plate (24), the driving part (21) is connected with the transmission rod (23) and the following assembly (22), the following assembly (22) is connected with the backrest side plate (24), the base assembly (1) is hinged with the following assembly (22), the driving part (21) drives the following assembly (22) to move through the transmission rod (23), the following assembly (22) drives the backrest side plate (24) to move, and the backrest side plate (24) is lifted up or laid down under the action of the following assembly (22). The following assembly (22) comprises a backrest rotating plate (25), a backrest angle adjuster (26) and a backrest lower fixing plate (27), the transmission rod (23) is connected with the backrest rotating plate (25) and the backrest angle adjuster (26), and the backrest rotating plate (25) and the backrest lower fixing plate (27) are respectively arranged on the two sides of the backrest angle adjuster (26).

2. The chair of claim 1, wherein, The backrest side plate (24) is connected with the backrest rotating plate (25), and the backrest lower fixing plate (27) is hinged with the base assembly (1).

3. The chair of claim 2, wherein the motor is mounted on the base. The outer side of the backrest side plate (24) and the outer side of the backrest lower fixing plate (27) are formed with clamping portions (3), the following assembly (22) further comprises a first quick inserting part (28) and a second quick inserting part (29), the first quick inserting part (28) is inserted into the clamping portion (3) of the backrest side plate (24) and is fixedly arranged on the backrest side plate (24), and the second quick inserting part (29) is inserted into the clamping portion (3) of the backrest lower fixing plate (27) and is fixedly arranged on the backrest lower fixing plate (27).

4. The chair of claim 2, wherein the motor is mounted on the base. The back-adjustable electric chair further comprises a first connecting rod (5) and a second connecting rod (6), the first connecting rod (5) is inserted into one end of the backrest side plate (24) and the middle part of the backrest rotating plate (25), and the second connecting rod (6) is inserted into one end of the backrest lower fixing plate (27).

5. The chair of claim 2, wherein the motor is mounted on the base. The backrest rotating plate (25) is provided with a limiting column (251) on the side close to the backrest lower fixing plate (27), the backrest lower fixing plate (27) is provided with a mounting hole (271) close to the backrest rotating plate (25), a limiting switch (272) is arranged in the mounting hole (271), and the limiting column (251) is clamped in the limiting switch (272).

6. The chair of claim 2, wherein the backrest is adjustable by a user. The back-adjustable electric chair further comprises an adjusting switch (4), and the driving part (21) and the limiting switch (272) are electrically connected with the adjusting switch (4).

7. The chair of claim 6, wherein the motor is mounted on the base. ​

Images