Electric backrest adjusting device
By designing an electric backrest adjustment device, the automatic adjustment of the sofa seat back is achieved using driving components and trigger components, and the problem of insufficient home automation and comfort in the prior art is solved, and automated adjustment and stability guarantee are achieved.
Patent Information
- Application Number
- CN202420464601.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-11
AI Technical Summary
Existing smart home technology is difficult to achieve automatic adjustment of sofa seat backs, resulting in insufficient home automation and comfort.
An electric backrest adjustment device is designed, including a front seat plate, a rear seat plate, an adjustment seat, a slide rod, a moving block and a driving member. The adjustment seat is driven to move between the front seat plate and the rear seat plate through the driving member, and automatic abortion of the drive is achieved by using a trigger assembly and a micro switch.
The automatic movement adjustment of the sofa seat back is realized, which improves the automation and comfort of the home, and can automatically stop the drive in the preset position, ensuring the stability of the seat mechanism.
Smart Images
Figure CN222565422U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of smart home, in particular to an electric backrest adjustment device. Background Art
[0002] Smart home (smart home, home automation) is based on the house as a platform, using integrated wiring technology, network communication technology, security technology, automatic control technology, audio and video technology to integrate facilities related to home life, build an efficient management system for residential facilities and family schedule affairs, and improve home safety, convenience, comfort, and artistry. The hardware foundation of smart home is the automatic control of home furnishings such as lamps, curtains, sofas, and seats. The utility model aims to design an electric backrest adjustment device that can be used for automatic movement and adjustment of the backrest of a sofa seat, so as to improve the automation and comfort of sofas, seats, and other home furnishings. Utility Model Content
[0003] In view of the above-mentioned prior art, the purpose of the present invention is to provide an electric backrest adjustment device to improve the automation and comfort of sofas, chairs and other home furnishings.
[0004] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:
[0005] The utility model provides an electric backrest adjustment device, comprising a front seat plate, a rear seat plate, an adjustment seat, a sliding rod, a shifting block and a driving component, wherein the shifting block is fixedly connected to the adjustment seat, the shifting block is mounted on the sliding rod and moves on the sliding rod, the driving component is mounted on the front seat plate, the rear seat plate or the adjustment seat, the driving component drives the adjustment seat to move between the front seat plate and the rear seat plate, and when the driving component drives the adjustment seat to move in one direction and the adjustment seat approaches or contacts the front seat plate or the rear seat plate, the driving component stops driving the adjustment seat to move in that direction.
[0006] Furthermore, in the electric backrest adjustment device, a trigger assembly is provided on the moving block. When the driving component drives the adjustment seat to move in one direction and the adjustment seat approaches or contacts the front seat plate or the rear seat plate, the trigger assembly triggers the driving component to interrupt the driving, and the driving component stops driving the adjustment seat to move in that direction.
[0007] Furthermore, in the electric backrest adjustment device, the trigger assembly includes a trigger arm and a micro switch, the trigger arm cooperates with the front seat plate and / or the rear seat plate, when the adjustment seat approaches or contacts the front seat plate or the rear seat plate, the trigger arm is triggered, the trigger arm moves, and the micro switch is electrically connected to the driving component, the micro switch is triggered, the driving component stops driving the adjustment seat, and the adjustment seat no longer continues to approach or contact the front seat plate or the rear seat plate.
[0008] Furthermore, in the electric backrest adjustment device, the trigger assembly also includes an elastic component, and the elastic component is connected to the trigger arm. When the triggered trigger arm moves away from the front seat plate or the rear seat plate, the elastic component drives the trigger arm to reset.
[0009] Furthermore, in the electric backrest adjustment device, the trigger arm has an extending end and a trigger portion, the extending end extends out of the moving block, and the moving block has a movable space for the trigger arm to retract / extend; when the moving block moves, the extending end of the trigger arm abuts against the front seat plate or the rear seat plate, the extending end of the trigger arm is pushed by the front seat plate or the rear seat plate, the trigger portion triggers the micro switch, and the driving component stops the continued movement of the adjustment seat.
[0010] Furthermore, in the electric backrest adjustment device, the trigger arm and the micro switch are a pair, the extending end of one trigger arm is located on the side where the front seat plate is located, and the extending end of the other trigger arm is located on the side where the rear seat plate is located, and the elastic member is installed between the two trigger arms.
[0011] Furthermore, in the electric backrest adjustment device, a limiting member is arranged in the movable space, the movable range of the trigger arm is limited by the limiting member, the shift block includes an upper half block and a lower half block, the trigger assembly and the slide rod are located between the upper half block and the lower half block, the upper half block and the lower half block are fixedly connected by bolts, and at least one bolt is a limiting member that hinders the extension range of the trigger arm.
[0012] Furthermore, in the electric backrest adjustment device, the trigger arm has a bending transition portion, and the bending transition portion cooperates with the limiting member. When the trigger arm extends outward, the limiting member blocks the bending transition portion to limit the extension range of the trigger arm.
[0013] Furthermore, in the electric backrest adjustment device, the driving component includes a driving motor, a threaded sleeve and a screw, the two ends of the screw are respectively fixedly connected to the front seat plate and the rear seat plate, the threaded sleeve is arranged on the screw and is threadedly connected to the screw, and when the driving motor drives the threaded sleeve to rotate, the threaded sleeve moves along the screw and pushes the adjustment seat to move.
[0014] Furthermore, in the electric backrest adjustment device, the sliding rod and the shifting block are a pair and are installed at the bottom of the adjustment seat. The driving motor is installed at the bottom of the adjustment seat and is located between the two shifting blocks. The screw rod is located between the two sliding rods and is arranged parallel to the two sliding rods.
[0015] Compared with the prior art, the utility model provides an electric backrest adjustment device, including a front seat plate, a rear seat plate, an adjustment seat, a slide bar, a shifting block and a driving component, wherein the shifting block is fixedly connected to the adjustment seat, the shifting block is mounted on the slide bar and moves on the slide bar, the driving component is mounted on the front seat plate, the rear seat plate or the adjustment seat, the driving component drives the adjustment seat to move between the front seat plate and the rear seat plate, and when the driving component drives the adjustment seat to move in one direction, when the adjustment seat approaches or contacts the front seat plate or the rear seat plate, the driving component stops driving the adjustment seat to move in the direction. The utility model can be used in the backrest of a sofa seat and other home furnishings, and can realize the automatic movement and adjustment of the backrest and other parts of the sofa seat, and can automatically stop the drive at a preset position. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The structure diagram of the electric backrest adjustment device provided by the utility model Figure 1 .
[0017] Figure 2 The structure diagram of the electric backrest adjustment device provided by the utility model Figure 2 .
[0018] Figure 3 This is a schematic diagram of the structure inside the shifting block of the electric backrest adjustment device provided by the utility model.
[0019] Notes on the attached drawings:
[0020] Front seat plate 11
[0021] Rear seat 12
[0022] Adjustment seat 13
[0023] Slide bar 14
[0024] Move block 15
[0025] Drive component 16
[0026] Trigger component 17
[0027] Trigger arm 18
[0028] Micro switch 19
[0029] Elastic member 20
[0030] Extension end 21
[0031] Touch 22
[0032] Upper half 23
[0033] Lower half 24
[0034] Limiting piece 25
[0035] Drive motor 26
[0036] Screw 27
[0037] Bending transition portion 28 DETAILED DESCRIPTION
[0038] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0039] It should be noted that when a component is referred to as being "mounted on", "fixed on" or "disposed on" another component, it may be directly on the other component or there may be a central component at the same time. When a component is referred to as being "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time.
[0040] It should also be noted that the directional terms such as left, right, up, and down in the embodiments of the present invention are merely relative concepts or are based on the normal use status of the product and should not be considered as restrictive.
[0041] like Figure 1 , Figure 2 and Figure 3As shown, the utility model provides an electric backrest adjustment device, including a front seat plate 11, a rear seat plate 12, an adjustment seat 13, a slide bar 14, a shifting block 15 and a driving component 16, wherein the shifting block 15 is fixedly connected to the adjustment seat 13, the shifting block 15 is mounted on the slide bar 14 and moves on the slide bar 14, the driving component 16 is mounted on the front seat plate 11, the rear seat plate 12 or the adjustment seat 13, the driving component 16 drives the adjustment seat 13 to move between the front seat plate 11 and the rear seat plate 12, and when the driving component 16 drives the adjustment seat 13 to move in one direction, when the adjustment seat 13 approaches or contacts the front seat plate 11 or the rear seat plate 12, the driving component 16 stops driving the adjustment seat 13 to move in the direction. The utility model can be used in the backrest of a sofa seat and other home furnishings, and can realize the automatic movement and adjustment of the backrest of the sofa seat and other parts, and can automatically stop the drive at a preset position. In order to ensure the stability of the seat mechanism, the utility model provides an electric backrest adjustment device, wherein the sliding rod 14 and the shifting block 15 are a pair and are installed at the bottom of the adjustment seat 13. The two sliding rods 14 are arranged parallel to each other, and the two shifting blocks 15 are symmetrically arranged on both sides of the bottom of the adjustment seat 13. The two shifting blocks 15 are respectively installed on the two sliding rods 14. The sliding rod 14 has both a guiding effect on the shifting blocks 15 and a bearing effect on the adjustment seat 13. The backrest is mainly fixed on the adjustment seat 13.
[0042] Furthermore, in the electric backrest adjustment device provided by the utility model, a trigger assembly 17 is provided on the shift block 15. When the driving component 16 drives the adjustment seat 13 to move in one direction and the adjustment seat 13 approaches or contacts the front seat plate 11 or the rear seat plate 12, the trigger assembly 17 triggers the driving interruption of the driving component 16, and the driving component 16 stops driving the adjustment seat 13 to move in the direction. The utility model triggers the interruption control of the driving component 16 through the trigger assembly 17. The driving component 16 can be an electric cylinder or a motor. In this embodiment, the motor is mainly used to drive the adjustment seat 13. Furthermore, in the electric backrest adjustment device provided by the utility model, the trigger assembly 17 includes a trigger arm 18 and a micro switch 19, the trigger arm 18 cooperates with the front seat plate 11 and / or the rear seat plate 12, when the adjustment seat 13 approaches or contacts the front seat plate 11 or the rear seat plate 12, the trigger arm 18 is triggered, the trigger arm 18 moves, and the micro switch 19 is electrically connected to the driving component 16, the micro switch 19 is triggered, the driving component 16 stops driving the adjustment seat 13, and the adjustment seat 13 no longer continues to approach or contact the front seat plate 11 or the rear seat plate 12. The utility model cooperates with the front seat plate 11, the rear seat plate 12, the trigger arm 18 and the micro switch 19. When the micro switch 19 is triggered, it proves that the adjustment seat 13 has moved to the limit position in the forward or backward direction, and the driving component 16 electrically connected thereto stops the continued movement of the adjustment seat 13. At this time, the driving component 16 can be driven in the reverse direction to make the adjustment seat 13 move in the reverse direction.
[0043] Furthermore, in the electric backrest adjustment device provided by the utility model, the trigger assembly 17 further includes an elastic member 20, and the elastic member 20 is connected to the trigger arm 18. When the triggered trigger arm 18 moves away from the front seat plate 11 or the rear seat plate 12, the elastic member 20 drives the trigger arm 18 to reset. After the trigger arm 18 is triggered, when the shift block 15 moves in the opposite direction, the trigger arm 18 is reset under the action of the elastic member 20, and the corresponding micro switch 19 is no longer triggered, and the passage can be restored.
[0044] Furthermore, in the electric backrest adjustment device provided by the utility model, the trigger arm 18 has an extended end 21 and a trigger portion 22, the extended end 21 extends out of the shift block 15, and the shift block 15 has a movable space for the trigger arm 18 to retract / extend. When the shift block 15 moves, the extended end 21 of the trigger arm 18 abuts against the front seat plate 11 or the rear seat plate 12, the extended end 21 of the trigger arm 18 is pushed by the front seat plate 11 or the rear seat plate 12, the trigger portion 22 triggers the micro switch 19, and the driving component 16 stops the continued movement of the adjustment seat 13. Further, in the electric backrest adjustment device provided by the utility model, the trigger arm 18 and the micro switch 19 are a pair, the extended end 21 of one trigger arm 18 is located on the side where the front seat plate 11 is located, and the extended end 21 of the other trigger arm 18 is located on the side where the rear seat plate 12 is located, and the elastic member 20 is installed between the two trigger arms 18. The shift block of the utility model has two trigger arms 18 and two micro switches 19, which are arranged front and back, and can automatically control the interruption of the limit position of the forward and backward movement. The elastic member 20 of the utility model adopts a spring, which connects the tail ends of the two trigger arms 18, and the head end of the trigger arm 18 is the extension end 21. The two extension ends 21 are respectively matched with the front seat plate 11 and the rear seat plate 12, so that the two trigger arms 18 share one elastic member 20, which is conducive to reducing the configuration of parts and reducing the production cost. Further, the electric backrest adjustment device provided by the utility model is provided with a limit member 25 in the activity space, and the activity range of the trigger arm 18 is limited by the limit member 25. The shift block 15 includes an upper half block 23 and a lower half block 24. The trigger assembly 17 and the slide rod 14 are located between the upper half block 23 and the lower half block 24. The upper half block 23 and the lower half block 24 are fixedly connected by bolts, and at least one bolt is a limit member 25, which hinders the extension range of the trigger arm 18. Specifically, in the electric backrest adjustment device provided by the utility model, the trigger arm 18 has a bending transition portion 28, and the bending transition portion 28 cooperates with the limiting member 25. When the trigger arm 18 extends outward, the limiting member 25 blocks the bending transition portion 28 to limit the extension range of the trigger arm 18. In this embodiment, the upper half block 23 and the lower half block 24 are fixedly connected by four bolts, and the moving block 15 and the sliding rod 14 are movably connected mainly by a plurality of rollers. The trigger assembly 17 can be set in one moving block 15. Among the four bolts of the moving block 15, two bolts serve as limiters 25 to prevent the two trigger arms 18 from being fully extended. In addition, since the two trigger arms 18 share an elastic component 20, the two trigger arms 18 are symmetrically arranged with the spring as the center. When one trigger arm 18 is pushed, it will squeeze the spring, and the spring will push the other trigger arm 18, while the other trigger arm 18 is blocked by the limiter 25, and the spring is compressed. The two trigger arms 18, the elastic component 20 and the limiter 25 cooperate to move forward and backward.
[0045] The electric backrest adjustment device provided by the utility model, specifically, the driving component 16 includes a driving motor 26, a thread sleeve (not shown in the figure) and a screw 27, the two ends of the screw 27 are respectively fixedly connected to the front seat plate 11 and the rear seat plate 12, the thread sleeve is arranged on the screw 27 and is threadedly connected to the screw 27, when the driving motor 26 drives the thread sleeve to rotate, the thread sleeve moves along the screw 27 and pushes the adjustment seat 13 to move. Further, the electric backrest adjustment device provided by the utility model, the slide bar 14 and the shifting block 15 are both a pair, installed at the bottom of the adjustment seat 13, the driving motor 26 is installed at the bottom of the adjustment seat 13 and is located between the two shifting blocks 15, the screw 27 is located between the two slide bars 14, and is arranged parallel to the two slide bars 14. The utility model adopts a screw 27 and two slide bars 14 to connect the front and rear seat plates 12, and the screw 27 and the slide bar 14 are both fixed, so as to enhance the stability of the structure. Of course, the screw 27 can also be assembled as a shaft, and the drive motor 26 is installed on the front seat plate 11 or the rear seat plate 12 to drive the screw 27 to rotate, and the rotation of the screw 27 drives the wire sleeve to move forward and backward. These alternative solutions are all within the protection scope of the present utility model.
[0046] In summary, the utility model can be used in the backrest of a sofa seat and other home furnishings, and can realize the automatic movement and adjustment of the backrest of a sofa seat and other parts, and can automatically stop the driving at a preset position. In order to ensure the stability of the seat mechanism, the electric backrest adjustment device provided by the utility model, the sliding rod and the moving block are a pair, installed at the bottom of the adjustment seat, the two sliding rods are arranged parallel to each other, the two moving blocks are symmetrically arranged on both sides of the bottom of the adjustment seat, and the two moving blocks are respectively installed on the two sliding rods, and the sliding rods have both a guiding effect on the moving blocks and a bearing on the adjustment seat.
[0047] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the claims attached to the utility model.
Claims
1. An electric backrest adjustment device, characterized in that: The invention comprises a front seat plate (11), a rear seat plate (12), an adjustment seat (13), a sliding rod (14), a shifting block (15) and a driving component (16); the shifting block (15) is fixedly connected to the adjustment seat (13); the shifting block (15) is mounted on the sliding rod (14) and moves on the sliding rod (14); the driving component (16) is mounted on the front seat plate (11), the rear seat plate (12) or the adjustment seat (13); the driving component (16) drives the adjustment seat (13) to move between the front seat plate (11) and the rear seat plate (12); when the driving component (16) drives the adjustment seat (13) to move in a direction and the adjustment seat (13) approaches or contacts the front seat plate (11) or the rear seat plate (12), the driving component (16) stops driving the adjustment seat (13) to move in the direction.
2. The electric backrest adjustment device according to claim 1, characterized in that: A trigger component (17) is provided on the shifting block (15); when the driving component (16) drives the adjusting seat (13) to move in one direction and the adjusting seat (13) approaches or contacts the front seat plate (11) or the rear seat plate (12), the trigger component (17) triggers the driving component (16) to interrupt the driving, and the driving component (16) stops driving the adjusting seat (13) to move in the direction.
3. The electric backrest adjustment device according to claim 2, characterized in that: The trigger assembly (17) comprises a trigger arm (18) and a micro switch (19), wherein the trigger arm (18) cooperates with the front seat plate (11) and / or the rear seat plate (12), and when the adjustment seat (13) approaches or contacts the front seat plate (11) or the rear seat plate (12), the trigger arm (18) is triggered, the trigger arm (18) moves, and the micro switch (19) is electrically connected to the driving component (16), and when the micro switch (19) is triggered, the driving component (16) stops driving the adjustment seat (13), and the adjustment seat (13) no longer continues to approach or contact the front seat plate (11) or the rear seat plate (12).
4. The electric backrest adjustment device according to claim 3, characterized in that: The trigger assembly (17) further comprises an elastic component (20), wherein the elastic component (20) is connected to the trigger arm (18), and when the triggered trigger arm (18) moves away from the front seat plate (11) or the rear seat plate (12), the elastic component (20) drives the trigger arm (18) to reset.
5. The electric backrest adjustment device according to claim 4, characterized in that: The trigger arm (18) comprises an extended end (21) and a trigger portion (22), wherein the extended end (21) extends outside the shift block (15), and the shift block (15) comprises a movable space for the trigger arm (18) to be retracted / extended. When the shift block (15) moves, the extended end (21) of the trigger arm (18) abuts against the front seat plate (11) or the rear seat plate (12), the extended end (21) of the trigger arm (18) is pushed by the front seat plate (11) or the rear seat plate (12), the trigger portion (22) triggers the micro switch (19), and the driving component (16) stops the continued movement of the adjustment seat (13).
6. The electric backrest adjustment device according to claim 5, characterized in that: The trigger arm (18) and the micro switch (19) are a pair, the extended end (21) of one trigger arm (18) is located on the side where the front seat plate (11) is located, and the extended end (21) of the other trigger arm (18) is located on the side where the rear seat plate (12) is located, and the elastic member (20) is installed between the two trigger arms (18).
7. The electric backrest adjustment device according to claim 5, characterized in that: A limiting member (25) is arranged in the activity space, and the activity range of the trigger arm (18) is limited by the limiting member (25). The shifting block (15) comprises an upper block (23) and a lower block (24). The trigger assembly (17) and the slide rod (14) are located between the upper block (23) and the lower block (24). The upper block (23) and the lower block (24) are fixedly connected by bolts, and at least one bolt is the limiting member (25) and blocks the extension range of the trigger arm (18).
8. The electric backrest adjustment device according to claim 7, characterized in that: The trigger arm (18) has a bending transition portion (28), and the bending transition portion (28) cooperates with the limiting member (25). When the trigger arm (18) extends outward, the limiting member (25) blocks the bending transition portion (28), thereby limiting the extension range of the trigger arm (18).
9. The electric backrest adjustment device according to any one of claims 1 to 8, characterized in that: The driving component (16) comprises a driving motor (26), a thread sleeve and a screw rod (27); two ends of the screw rod (27) are respectively fixedly connected to the front seat plate (11) and the rear seat plate (12); the thread sleeve is disposed on the screw rod (27) and is threadedly connected to the screw rod (27); when the driving motor (26) drives the thread sleeve to rotate, the thread sleeve moves along the screw rod (27) and pushes the adjustment seat (13) to move.
10. The electric backrest adjustment device according to claim 9, characterized in that: The sliding rod (14) and the shifting block (15) are a pair and are mounted on the bottom of the adjustment seat (13); the driving motor (26) is mounted on the bottom of the adjustment seat (13) and is located between the two shifting blocks (15); the screw rod (27) is located between the two sliding rods (14) and is arranged parallel to the two sliding rods (14).