Foldable electric chair for old people with automatic dust cloth storage mechanism

Abstract

The utility model belongs to the technical field of functional furniture design, especially relates to a foldable electric old person's chair with dust cloth automatic storage mechanism, including the frame of horizontal arrangement, the backrest and the lying plate are installed in turn on the frame along the length direction of self, and the backrest is hinged together with the lying plate, drive cylinder is hinged and installed between the end of the frame far from the lying plate and the board surface of the backrest away from the lying plate, and the cooperation telescopic degree of telescopic link on drive cylinder is controlled, thereby adjusting the face folding angle of the backrest relative to the lying plate, and the cover body is formed to the included angle space between the frame and the backrest far from the lying plate through dust cloth, the hole is set up on the support ridge of the backrest side away from the lying plate, the connecting rope is worn in the hole, one end of the connecting rope is fixed on the inner surface of cover body, and the other end is connected with the weight suspended in the inner side of cover body after passing through the hole.

Description

Technical Field

[0001] This utility model belongs to the field of functional furniture design technology, and specifically relates to a foldable electric chair for the elderly with an automatic dust cover storage mechanism. Background Technology

[0002] The foldable electric recliner for the elderly consists of a reclining board and a backrest. Unlike traditional wooden recliners, the backrest of the foldable electric recliner can be folded and flipped under the control of a drive mechanism, thereby adjusting the angle between the backrest and the reclining board to accommodate different users' comfort when lying back against the backrest. This drive mechanism is distributed and installed on the backrest side of the foldable electric recliner and mainly includes a drive cylinder, hinge elements, and connecting rods. To prevent dust accumulation on these components over time, a dustproof cloth is used to connect the edge of the backrest to the corresponding edge on the mounting frame on the backrest side, forming a cover that acts as a barrier. The cover is made of flexible fabric, and its presence does not affect the flipping behavior of the backrest on the mounting frame (as described in patent application number 202321741141.X). However, with this design, when the backrest is fully reclined, the fully relaxed cover inevitably lingers outside the recliner and sags, affecting aesthetics and contradicting the simple and stylish design concept. Utility Model Content

[0003] To solve the above technical problems, this utility model provides a foldable electric elderly chair with an automatic dust cover storage mechanism, including a horizontally set frame, on which a backrest and a horizontally oriented reclining board are installed in sequence along its own length. The backrest and the reclining board are hinged together by parallel edges of the board, so that the backrest can be folded up relative to the reclining board.

[0004] The frame is hinged at one end along its own length away from the reclining board and at one end along the length of the drive cylinder. The drive cylinder has a telescopic rod extending outwards towards the backrest along its own length. The backrest has a support rib protruding outwards on the side facing away from the reclining board. The telescopic rod is hinged between the extended end of the drive cylinder and the support rib. By controlling the degree of extension and retraction of the telescopic rod on the drive cylinder, the folding angle of the backrest relative to the reclining board can be adjusted.

[0005] Except for the edge of the backrest that is hinged to the reclining board, the rest of the backrest has a dustproof cloth extending outward along its entire length. The edge of the dustproof cloth away from the backrest is fixed to the horizontal top edge of the frame that is away from the reclining board along its entire length. Thus, the dustproof cloth forms a cover for the space between the frame and the backrest that is away from the reclining board.

[0006] The support rib has a channel through which a connecting rope is threaded. One end of the connecting rope is fixed to the inner surface of the cover, and the other end of the connecting rope passes through the channel and is connected to a weight suspended inside the cover.

[0007] Preferably, the dustproof cloth connecting the horizontal top edge of the backrest away from the reclining board and the horizontal top edge of the frame along its own length away from the reclining board is a rectangular dustproof cloth; the dustproof cloth connecting the side edge of the backrest and the horizontal top edge of the frame located on the same side as the side edge is a triangular dustproof cloth; one triangular dustproof cloth, one rectangular dustproof cloth, and another triangular dustproof cloth are connected together by their edges to form a whole.

[0008] As a preferred embodiment, a connecting rope extends from the inner surface of the rectangular dustproof cloth, and a connecting rope also extends from the inner surface of each triangular dustproof cloth. The ends of these three connecting ropes that are away from the dustproof cloth pass through the holes and are independently connected to weights.

[0009] As a preferred embodiment: under the drive control of the drive cylinder, when the backrest is folded relative to the reclining board surface to an angle of 70° with the portion of the frame away from the reclining board in the length direction, the dustproof cloths of each triangular surface are unfolded into flat triangular vertical surfaces, and at the same time, the dustproof cloths of the rectangular surface are unfolded into flat rectangular inclined surfaces.

[0010] Preferably, the support ribs are parallel to the horizontal width direction of the frame in the length direction, and the ducts are perpendicular to the length direction of the support ribs in the axial direction.

[0011] Preferably, the openings at both ends of the axial direction of the channel are set as arc-shaped flared openings.

[0012] As a preferred option, the arc angle of the flared opening is 90°.

[0013] As a preferred option, the frame is a rectangular frame made up of four vertical strip panels fixedly spliced ​​together. Support legs extend vertically downward from the four corners of the frame, and the electric elderly chair is horizontally supported above the ground by these four support legs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the frame structure of the foldable electric elderly chair with an automatic dustproof cloth storage mechanism of this utility model (the frame has a groove for fitting and installing the reclining board).

[0015] Figure 2 This is a schematic diagram of the structure of the foldable electric chair for the elderly with an automatic dust cover storage mechanism, without the dust cover installed.

[0016] Figure 3This is a schematic diagram of the installation and connection structure between the dustproof cloth, backrest, frame, and connecting rope in the foldable electric elderly chair with an automatic dustproof cloth storage mechanism of this utility model (taking the triangular dustproof cloth located on the rear side as an example).

[0017] Figure 4 This is a schematic diagram of the structure of the foldable electric elderly chair with an automatic dustproof cloth storage mechanism of this utility model, in which the backrest drive mechanism is protected by dustproof cloths on the front, back, and left sides.

[0018] Figure 5 This is a schematic diagram of the structure of the foldable electric elderly chair with an automatic dustproof cloth storage mechanism, showing a triangular dustproof cloth, a rectangular dustproof cloth, and another triangular dustproof cloth connected together by their edges to form an independent whole (viewpoint same as attached). Figure 4 ,and Figure 5 In the middle, the folding shape and angle between one triangular dustproof cloth, one rectangular dustproof cloth, and another triangular dustproof cloth are also similar to... Figure 4 Consistent; and Figure 5 The dotted line indicates the location after the dust cover is attached and installed on the electric elderly chair (as shown in the attached image). Figure 4 (In the middle), fold lines will be formed between the triangular and rectangular dustproof cloths, and between the adhesive part of the dustproof cloth and the main body of the dustproof cloth.

[0019] Figure 6 For the appendix Figure 5 A schematic diagram showing the state of the dustproof cloth after it has been laid flat on the same plane (cut according to the size of the backrest and the range of its rotation angle on the electric elderly chair).

[0020] Figure 7 This utility model presents a foldable electric elderly chair with an automatic dust cover storage mechanism. When the telescopic rod extends fully from its drive cylinder to its maximum extent, and the backrest flips onto the frame to the maximum angle with the horizontal part of the frame away from the reclining board in the length direction, the diagram shows the state of the rectangular dust cover and its interaction with the connecting rope and the weight. (Front view and cross-section view)

[0021] Figure 8 This utility model presents a foldable electric elderly chair with an automatic dust cover storage mechanism. When the telescopic rod extends fully from its drive cylinder to its maximum extent, and the backrest flips onto the frame until the angle between it and the horizontal part of the frame away from the reclining board in the length direction reaches its maximum, the diagram shows the state of the two triangular dust covers and their interaction with the connecting rope and the weight (left view, cross-sectional view, and the drive mechanism is omitted in the figure).

[0022] Figure 9This utility model presents a foldable electric elderly chair with an automatic dust cover storage mechanism. When the telescopic rod is fully extended into the drive cylinder where it is located, the backrest is flipped on the frame to the minimum angle between the backrest and the horizontal part of the frame away from the reclining board in the length direction. The diagram shows the state of the rectangular dust cover and its interaction with the connecting rope and the weight. (Front view and cross-section view)

[0023] Figure 10 This utility model presents a foldable electric elderly chair with an automatic dust cover storage mechanism. When the telescopic rod is fully extended into the drive cylinder where it is located, the backrest is flipped on the frame to the minimum angle between the backrest and the horizontal part away from the reclining board in the length direction of the frame. The diagram shows the state of the two triangular dust covers and their interaction with the connecting rope and the weight. (Left view, cross-sectional view, and the drive mechanism is omitted in the figure).

[0024] Figure 11 This is a schematic diagram (front view and cross-section) of the threaded connection structure between the reclining board and the frame (circumferential support part) in the foldable electric elderly chair with an automatic dustproof cloth storage mechanism of this utility model.

[0025] Among them, 1—frame, 11—support leg, 12—first internal and external thread nut, 2—backrest, 21—support rib, 211—channel, 3—lying board, 31—second internal and external thread nut, 4—drive cylinder, 41—telescopic rod, 51—rectangular dustproof cloth, 52—triangular dustproof cloth, 6—connecting rope, 7—weight, 8—bolt. Detailed Implementation

[0026] It should be noted that the terms "front," "back," "left," "right," "horizontal," and "vertical" used in the description of this application refer to the appendix. Figure 1 , 2 In the directions 3, 4, 7, and 9, "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] As attached Figure 1 As shown, the foldable electric elderly chair with an automatic dustproof cloth storage mechanism of this utility model first includes a frame 1 that is horizontally set in the left-right direction along its length. The frame 1 is a rectangular frame formed by four vertical strip plates (in order: front side plate, right side plate, rear side plate, and left side plate) that are fixed end to end along their own horizontal length. Support legs 11 extend vertically downward from the four corners of the frame 1. The frame 1 is suspended and horizontally supported above the ground by these four support legs 11.

[0028] A backrest 2 and a horizontal reclining board 3 are installed on the frame 1 from left to right along its own length (the reclining board 3 extends horizontally to the right side of the frame 1 along its own length). The frame 1 has a groove for mounting the reclining plate 3. Several vertically aligned first internal and external thread nuts 12 are evenly and intermittently embedded in the circumferential support portion (a wooden profile integrally fixed with the frame 1) of the groove. Both ends of the internal thread holes of each first internal and external thread nut 12 are axially connected to the outside. The reclining plate 3 is inserted downwards into the groove and supported by the vertically upward circumferential support portion. Simultaneously, second internal and external thread nuts 31 are pre-embedded at the bottom of the reclining plate 3 (wooden) corresponding to the first internal and external thread nuts 12. The bottom axial end of the internal thread hole of each second internal and external thread nut 31 is connected to the outside. A screw 8 vertically upwards spirally passes through the first internal and external thread nuts 12 and is fully screwed into the corresponding second internal and external thread nuts 31, thus achieving the fixed installation of the reclining plate 3 with the circumferential support portion and the frame 1. Figure 11 The backrest 2 is hinged parallel to the left edge of the reclining panel 3 via its right edge, allowing the backrest 2 to fold completely relative to the reclining panel 3, as shown in the attached diagram. Figure 2 The horizontal upper surface of the reclining board 3 and the upper surface of the backrest 2 are both fixedly equipped with a soft padding layer (not shown in the attached diagram).

[0029] On the vertical inner side of the left side panel of frame 1, at the center of the front-to-back upward direction, one end of the drive cylinder 4 is hinged to a horizontal axis with the front-to-back direction as the pivot axis. A telescopic rod 41 extends from the drive cylinder 4 along its own length away from the left side panel of frame 1. On the backrest 2, on the surface facing away from the reclining board 3, a horizontal support rib 21 protrudes outward perpendicularly to the surface, and the telescopic rod 41 is also hinged at the center of the length of the support rib 21 with the front-to-back horizontal axis as the pivot axis. By controlling the degree of extension and retraction of the telescopic rod 41 on the drive cylinder 4, the folding angle of the backrest 2 relative to the reclining board 3 can be adjusted (as shown in the attached figure). Figure 2 Furthermore, through the size design of the drive cylinder 4 and its telescopic rod 41, when the telescopic rod 41 in this structure extends fully from its drive cylinder 4 to its maximum extent, the backrest 2 flips on the frame 1 so that the angle between it and the horizontal part of the frame 1 away from the reclining board 3 in the length direction is approximately 70°, as shown in the attached diagram. Figure 7 When the telescopic rod 41 of this design is fully inserted into the drive cylinder 4, the backrest 2 flips on the frame 1 so that the angle between it and the horizontal part of the frame 1 away from the reclining board 3 along its length is about 15°, turning the electric elderly chair into a bed that can be reclined on. (See attached diagram.) Figure 9 .

[0030] Except for the right edge of the backrest 2, which is hinged to the reclining board 3, dustproof cloth extends outwards along the entire length of the other edges. The edge of the dustproof cloth away from the backrest 2 is fixedly connected to the top edge of the horizontal portion of the frame 1 away from the reclining board 3 along its length. Thus, the dustproof cloth forms a cover over the angled space between the frame 1 and the backrest 2 away from the reclining board 3 (as shown in the attached diagram). Figure 4 The dustproof cloth 51, which is rectangular, is used to connect the horizontal left edge of the backrest 2 away from the reclining board 3 and the top edge of the left side panel of the frame 1. The dustproof cloth 52, which is triangular, is used to connect the area on the horizontal top edge of the front panel of the frame 1 away from the reclining board 3 and the front edge of the backrest 2. The dustproof cloth 52, which is triangular, is used to connect the area on the horizontal top edge of the rear panel of the frame 1 away from the reclining board 3 and the rear edge of the backrest 2. These three dustproof cloths are connected together along their edges to form a single unit (as shown in the attached diagram). Figure 5 , 6 Furthermore, in this design, when the telescopic rod 41 extends fully from its driving cylinder 4 to its maximum extent, that is, when the backrest 2 is flipped on the frame 1 to an angle of approximately 70° with the horizontal portion of the frame 1 away from the reclining board 3 along its length, both of the aforementioned triangular dustproof cloths 52 unfold into basically flat triangular vertical surfaces. Simultaneously, the rectangular dustproof cloth 51 also unfolds into a basically flat rectangular sloping surface (in this section, the dustproof cloth is made of polyester fabric, and the dustproof cloth is fixedly bonded to the top edge of the frame 1 and the edge of the backrest 2 using strong adhesive), as shown in the attached diagram. Figure 3 , 4 7, 8.

[0031] Meanwhile, the support rib 21 has three channels 211 spaced apart along its length. One channel 211 is located at the center of the support rib 21's length, and the other two channels 211 are symmetrically arranged front and back based on the center channel 211. Each channel 211 is perpendicular to the length of the support rib 21 and parallel to the backrest 2 panel in the axial direction. Both ends of each channel 211 are connected to the outer surface of the support rib 21 (as shown in the attached figure). Figure 2 , 3 The openings at both ends of each channel 211 are flared arcs with a radius of 90° (see attached). Figure 7 , 9 Each channel 211 is also equipped with a connecting rope 6. One end of the connecting rope 6 in the rear channel 211 is sewn and fixed to the inner surface of the rear triangular dustproof cloth 52, and the other end passes through the corresponding channel 211 and is independently tied with a suspended weight 7 (as shown in the attached figure). Figure 3One end of the connecting rope 6, which passes through the centrally located hole 211, is sewn and fixed to the inner surface of the rectangular dustproof cloth 51. The other end of the rope passes through the corresponding hole 211 and is independently tied to a suspended weight 7 (as shown in the attached document). Figure 7 One end of the connecting rope 6, which passes through the front channel 211, is sewn and fixed to the inner surface of the front triangular dustproof cloth 52. The other end of the rope passes through the corresponding channel 211 and is independently tied with a suspended weight 7. Each weight 7 is located inside the cover (the weights 7 are all rings with a certain weight, and under the drive control of the drive cylinder 4, no matter what angle the backrest 2 is folded to, each weight 7 is always suspended. Under the gravity of the weights 7, the rope segment of each connecting rope 6 after passing through the channel 211 away from the dustproof cloth it is sewn to also always hangs vertically).

[0032] In this invention, by setting up connecting ropes 6 and weights 7, and by controlling dimensions such as the length of connecting ropes 6 and the height of the main structure of the electric elderly chair from the ground, each weight 7 in this invention is always kept completely suspended. That is, each weight 7, by maintaining a vertical downward pulling force on the connecting ropes 6 attached to it, can keep the dustproof cloths in all directions forming the cover taut inward. In this state, when the drive cylinder 4 drives the backrest 2 to tend to flatten, it can be ensured that the dustproof cloths in all directions are pulled into the space enclosed by the frame 1 and the backrest 2 at this time (as shown in the attached figure). Figure 9 , 10 This prevents the loosened dust cover from dangling off the outside of frame 1, maintaining the simple and beautiful appearance of the electric elderly chair.

[0033] The openings at both ends of the axial direction of the channel 211 are both arc-shaped flared openings, which can reduce wear on the connecting rope 6 and extend its service life.

Claims

1. A foldable electric chair for the elderly with an automatic dust cover storage mechanism, characterized in that: The electric elderly chair includes a horizontally arranged frame (1), on which a backrest (2) and a horizontally oriented reclining board (3) are sequentially installed along its length. The backrest (2) and the reclining board (3) are hinged together by parallel edges, so that the backrest (2) can be folded over relative to the reclining board (3). The frame (1) is hinged at one end away from the reclining board (3) along its own length direction to one end of the drive cylinder (4) along its own length direction. The drive cylinder (4) has a telescopic rod (41) extending outward toward the backrest (2) along its own length direction. The backrest (2) has a support rib (21) protruding outward on the board surface facing away from the reclining board (3). The telescopic rod (41) is hinged between the extended end of the drive cylinder (4) and the support rib (21) along its own length direction. By controlling the degree of extension and retraction of the telescopic rod (41) on the drive cylinder (4), the folding angle of the backrest (2) relative to the reclining board (3) can be adjusted. Except for the edge of the backrest (2) which is hinged to the reclining board (3), the rest of the backrest (2) has a dustproof cloth extending outward along its entire length. The edge of the dustproof cloth that is away from the backrest (2) is fixed to the horizontal top edge of the frame (1) that is away from the reclining board (3) along its entire length. Thus, the dustproof cloth forms a cover in the angular space between the frame (1) and the backrest (2) that is away from the reclining board (3). The support rib (21) has a channel (211) through which a connecting rope (6) is threaded. One end of the connecting rope (6) along its length is fixed to the inner surface of the cover, and the other end of the connecting rope (6) along its length passes through the channel (211) and is connected to a weight (7) suspended inside the cover.

2. The foldable electric chair for the elderly with an automatic dust cover storage mechanism as described in claim 1, characterized in that: The dustproof cloth connected between the horizontal top edge of the backrest (2) away from the reclining board (3) and the horizontal top edge of the frame (1) along its own length away from the reclining board (3) is a rectangular dustproof cloth (51); the dustproof cloth connected between the side edge of the backrest (2) and the horizontal top edge of the frame (1) on the same side as the side edge is a triangular dustproof cloth (52); one of the triangular dustproof cloths (52), the rectangular dustproof cloth (51), and the other triangular dustproof cloth (52) are connected together by their edges to form a whole.

3. The foldable electric chair for the elderly with an automatic dust cover storage mechanism as described in claim 2, characterized in that: A connecting rope (6) extends from the inner surface of the rectangular dustproof cloth (51), and a connecting rope (6) also extends from the inner surface of each of the triangular dustproof cloths (52). The ends of these three connecting ropes (6) that are away from the dustproof cloth pass through the hole (211) and are independently connected to the weight (7).

4. The foldable electric chair for the elderly with an automatic dust cover storage mechanism as described in claim 2, characterized in that: Under the drive control of the drive cylinder (4), when the backrest (2) is folded relative to the reclining board (3) to an angle of 70° with the part of the frame (1) away from the reclining board (3) in the length direction, each of the triangular dustproof cloths (52) unfolds into a flat triangular vertical surface, and at the same time, the rectangular dustproof cloth (51) unfolds into a flat rectangular inclined surface.

5. The foldable electric chair for the elderly with an automatic dust cover storage mechanism as described in claim 1, characterized in that: The support rib (21) is parallel to the horizontal width direction of the frame (1) in the length direction, and the channel (211) is perpendicular to the length direction of the support rib (21) in the axial direction.

6. The foldable electric chair for the elderly with an automatic dust cover storage mechanism as described in claim 1, characterized in that: The openings at both ends of the axial direction of the channel (211) are both arc-shaped flared openings.

7. The foldable electric chair for the elderly with an automatic dust cover storage mechanism as described in claim 6, characterized in that: The arc angle of the flared opening is 90°.

8. The foldable electric chair for the elderly with an automatic dust cover storage mechanism as described in claim 1, characterized in that: The frame (1) is a rectangular frame made up of four vertical strips. Support legs (11) extend vertically downward from the four corners of the frame (1). The electric elderly chair is horizontally supported above the ground by these four support legs (11).

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