CN114903262A - Supporting plate unfolding and folding device - Google Patents
Supporting plate unfolding and folding device Download PDFInfo
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- CN114903262A CN114903262A CN202110180869.9A CN202110180869A CN114903262A CN 114903262 A CN114903262 A CN 114903262A CN 202110180869 A CN202110180869 A CN 202110180869A CN 114903262 A CN114903262 A CN 114903262A
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 225
- 238000013459 approach Methods 0.000 claims description 12
- 239000004744 fabric Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 241001166076 Diapheromera femorata Species 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B5/00—Walking sticks or umbrellas convertible into seats; Hunting sticks
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B9/00—Details
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B9/00—Details
- A45B2009/002—Accessories
Abstract
A supporting plate unfolding and folding device can be positioned relative to a positioning piece and comprises a supporting unit, a linkage unit and a braking unit, wherein the linkage unit is connected to the supporting unit, the supporting unit comprises a main supporting piece, at least one side supporting piece and a guiding part, the main supporting piece is provided with a main supporting surface, the side supporting piece is provided with a braked surface, the braking unit can move and is connected to the guiding part and comprises at least one braking part, the braking unit is linked by the linkage unit, the braking part and the braked surface can be obliquely braked, and the side supporting piece is enabled to be switched between a folding state in which the side supporting piece is arranged at an angle relative to the main supporting piece and an unfolding state in which the side supporting piece is arranged in parallel relative to the main supporting piece. The support unit can be easily unfolded and folded in a simple operation manner by using the integral assembly.
Description
Technical Field
The invention relates to automatic unfolding and folding equipment, in particular to a supporting plate unfolding and folding device.
Background
The old or the person who is inconvenient to move can not walk continuously as normal people due to decline and insufficiency of physiological functions, so the person needs to stop having a proper rest in the walking process and can walk again after physical strength is recovered. Accordingly, there are related manufacturers who develop related appliances that can be operated in a seating or auxiliary supporting state according to the user's needs.
Such as taiwan certification number TWM467398 patent, "crutch chair", includes a quadrilateral positioning seat, a plurality of supporting legs and a cloth seat body, wherein the positioning seat is provided with a long slot hole with two bevel edge-shaped ends, one of the supporting legs is provided with a supporting block, the supporting legs are respectively pivoted in each long slot hole, and the cloth seat body is laid and fixed on the top end of each supporting leg and the upper end of the supporting block.
When the seat cloth body is used, the supporting legs are unfolded by taking the pivot positions of the supporting legs and the long slotted holes of the positioning seat as axes, and the supporting legs are obliquely abutted against the long slotted holes of the positioning seat, at the moment, the bottom end of each supporting leg can be supported on the ground, and the top end of each supporting leg and the supporting block prop open the seat cloth body so that a user can sit on the seat cloth body.
Although the crutch chair can be unfolded and folded at a proper time, when the crutch chair is unfolded and folded, an operator needs to pull each supporting foot to pivot relative to the positioning seat, the operation is troublesome, and the operation speed is slow, that is, the supporting feet are not linked with each other and need to be respectively unfolded and folded.
Especially for the elderly or the people who are inconvenient to move, the stability and balance of the device are not good, and the user must bend down to pull the supporting legs one by one, which increases the inconvenience of operation.
Disclosure of Invention
The invention aims to provide a supporting plate unfolding and folding device which is simple in structure and can be easily unfolded and folded.
The support plate unfolding and folding device can be positioned relative to a positioning piece, and comprises a support unit, a linkage unit and a braking unit, wherein the linkage unit and the braking unit are connected to the support unit, the support unit comprises a main support piece connected to the positioning piece, at least one side support piece pivoted to the main support piece, and a guide part arranged on one of the main support piece and the side support piece, the main support piece is provided with a main support surface, the side support piece is provided with an inner side edge adjacent to the main support piece, an outer side edge opposite to the inner side edge, a side support surface extending from the inner side edge to the outer side edge, a side bottom surface opposite to the side support surface, and a braked block corresponding to the guide part, the braked block is provided with a braked surface which is intersected with the side bottom surface, the braked block is provided with an outer side end and an inner side end opposite to the outer side end, the braking unit is linked with the linkage unit, can make the braking part and the braked surface obliquely brake, and makes the side supporting surface convert between a folding state in which the side supporting surface is arranged at an angle relative to the main supporting surface and an unfolding state in which the side supporting surface is arranged in parallel relative to the main supporting surface.
In the supporting plate unfolding and folding device, a first distance is generated between the outer side end of the clamped surface of the supporting unit and the inner side edge, and a second distance smaller than the first distance is generated between the inner side end and the inner side edge.
According to the supporting plate unfolding and folding device, the clamped surface of the supporting unit is smooth and has no turning.
In the supporting plate unfolding and folding device of the invention, the main supporting piece of the supporting unit further comprises a first end, a second end opposite to the first end along the first axial direction, a pair of long side edges connected between the first end and the second end, and a main bottom surface opposite to the main supporting surface, the guiding part is in a guide rail shape, is arranged between the long side edges and extends corresponding to the first axial direction, the inner side edge of the side supporting piece is opposite to one of the long side edges, the side bottom surface is arranged on the braked block, and the brake unit further comprises a pivot guiding piece which is arranged at one side of the brake part, can move and is arranged on the guiding part in a penetrating manner.
In the supporting plate folding and unfolding device of the present invention, the braked block of the side supporting member of the supporting unit is adjacent to the first end of the main supporting member, and the braked block is inclined, and gradually slantingly extends from the outer edge to the inner edge when extending from the second end to the first end.
The supporting plate unfolding and folding device comprises a supporting plate, a main supporting surface, a main bottom surface, a linkage unit, a main supporting piece, a pivoting piece and at least one braking plate, wherein the guiding part of the supporting unit is arranged between the main supporting surface and the main bottom surface and is parallel to the main supporting surface, the guiding part corresponds to the first end, the linkage unit approaches to the first end and is pivoted to the main supporting piece, the pivoting piece of the braking unit is in a rod shape, the braking unit further comprises at least one braking plate connected to the pivoting piece and a pivoting plate connected to the braking plate and pivoted to the linkage unit, and the braking part and the pivoting plate are respectively arranged at two ends of the braking plate.
The supporting plate unfolding and folding device comprises a supporting plate unfolding and folding device, wherein a guide part of the supporting unit is in a chute shape, and gradually slantwise extends from a main supporting surface to a main bottom surface when extending from a second end to a first end, the guide part corresponds to the first end, the linkage unit approaches to the first end and is pivoted to the main supporting piece, a pivot guide piece of the braking unit is in a rod shape, the braking unit further comprises a pivot plate which is connected to the pivot guide piece and is pivoted to the linkage unit, and the braking part is arranged at the tail end of the pivot guide piece.
The supporting plate unfolding and folding device comprises a supporting plate, a main supporting surface, a main bottom surface, a linkage unit, a pivoting guide piece and at least one braking plate, wherein the guiding part of the supporting unit is arranged between the main supporting surface and the main bottom surface and is parallel to the main supporting surface, the guiding part corresponds to the first end, the linkage unit approaches to the first end and is pivoted to the main supporting piece, the pivoting guide piece of the braking unit is in a rod shape, the braking unit further comprises at least one braking plate connected to the pivoting guide piece, and a connecting rod pivoted between the braking plate and the linkage unit.
In the supporting plate folding and unfolding device of the invention, the braked block of the side supporting piece approaches to the second end of the main supporting piece, and the braked surface of the braked block gradually slants and extends from the inner side edge to the outer side edge when extending from the second end to the first end.
In the supporting plate unfolding and folding device, the guide part of the supporting unit is arranged between the main supporting surface and the main bottom surface, the guide part extends from the second end to the first end, the braking unit is also provided with a braking plate connected with the pivot guide part, and the braking plate is provided with a braking part corresponding to the braked surface.
In the supporting plate unfolding and folding device of the invention, the main supporting piece of the supporting unit is further provided with guide rails, two side supporting pieces are respectively pivoted on two sides of the main supporting piece, the linkage unit comprises a carrying seat pivoted on the positioning piece, two supporting rods pivoted on the carrying seat, a linkage piece approaching to the first end and pivoted on the main supporting piece, a sliding sleeve connected with the linkage piece and sleeved on the positioning piece, a first connecting rod pivoted on the linkage piece, a second connecting rod pivoted on the carrying seat and pivoted with the first connecting rod, and a guide block pivoted on the second connecting rod, the guide block can be movably connected with the guide rails along the guide rails, and the supporting rods are supported on the bottoms of the side supporting pieces when the side supporting surfaces are in an unfolded state relative to the main supporting surface.
The support plate unfolding and folding device comprises a support plate unfolding and folding device, wherein a linkage piece of a linkage unit is provided with at least one pivot hole, the pivot hole is provided with a round hole part and a groove part which is concavely arranged from the round hole part to the outside, the brake unit also comprises at least one shaft part which is pivoted on the pivot hole, the shaft part is provided with a cylindrical part and a protruding part which is convexly arranged from the cylindrical part to the outside, when the cylindrical part of the shaft part is sleeved in the round hole part, the protruding part can also pass through the groove part, and after the shaft part pivots relative to the pivot hole, the protruding part is staggered relative to the groove part.
In the supporting plate unfolding and folding device, the braked block of the supporting unit is also provided with a limiting surface which is connected with the inner side end and intersected with the braked surface, the limiting surface is substantially parallel to the first axial direction, and when the braked part of the braked unit is propped against the limiting surface, the side supporting surface is kept in an unfolded state relative to the main supporting surface.
In the supporting plate unfolding and folding device, the guide part of the supporting unit is in a convex rib shape and is arranged on the braked block, and the guide part is substantially parallel to the side supporting surface and is intersected with the braked surface and the limiting surface.
The invention has the beneficial effects that: by integrally assembling the supporting unit, the linkage unit and the braking unit, the supporting unit can be easily unfolded and folded by simply pulling the main supporting piece or the side supporting pieces.
Drawings
FIG. 1 is a perspective assembly view of a first embodiment of the device for supporting the board to be unfolded and folded according to the present invention;
FIG. 2 is an exploded perspective view of the first embodiment;
FIG. 3 is an exploded perspective view of the linkage and the braking unit according to the first embodiment;
FIG. 4 is an enlarged partial perspective view of the side support of the first embodiment;
FIG. 5 is an enlarged, fragmentary, plan view of the side support of the first embodiment;
FIG. 6 is a fragmentary cross-sectional view of FIG. 1 illustrating the support unit in a collapsed state;
FIG. 7 is an enlarged partial perspective view of another view of FIG. 1;
FIG. 8 is a perspective operational view of the first embodiment;
FIG. 9 is an enlarged partial perspective view of the alternate viewing angle of FIG. 8;
FIG. 10 is a fragmentary cross-sectional view of FIG. 8, illustrating the support unit in operation;
FIG. 11 is a perspective view of the first embodiment, illustrating the supporting unit in an unfolded state;
FIG. 12 is a cross-sectional schematic view of FIG. 11;
FIG. 13 is an enlarged partial schematic view of FIG. 12;
FIG. 14 is a partial isometric enlarged view of the alternate view of FIG. 11;
FIG. 15 is a schematic view of the unfolding operation of the first embodiment;
fig. 16 is an exploded perspective view of a second embodiment of the support panel spreader of the present invention;
FIG. 17 is a fragmentary cross-sectional view of the second embodiment, illustrating the support unit in a collapsed state;
fig. 18 is a partially enlarged perspective view in operation of the second embodiment, illustrating a state of the supporting unit during operation;
FIG. 19 is an enlarged plan view of the second embodiment, illustrating the supporting unit in a deployed state;
FIG. 20 is a partial perspective view of FIG. 19;
FIG. 21 is a partial perspective view of the supporting board folding and unfolding apparatus according to the third embodiment of the present invention, illustrating the supporting unit in a folded state;
fig. 22 is an exploded perspective view of a fourth embodiment of the support panel spreader of the present invention;
FIG. 23 is a partial perspective view of the fourth embodiment, illustrating the support unit in an expanded state;
fig. 24 is a fragmentary exploded perspective view of a fifth embodiment of the supporting board spreading and retracting device of the invention;
fig. 25 is a partial perspective view of the fifth embodiment, illustrating the support unit in an expanded state.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 7, the first embodiment of the supporting plate unfolding and folding device of the present invention is illustrated by taking a walking stick chair as an example, and certainly not limited to be applied to a walking stick chair, the supporting plate unfolding and folding device can be positioned relative to a positioning member 1, and comprises a linkage unit 10, a supporting unit 20 and an immobilizing unit 30.
The linking unit 10 includes a sliding sleeve 11 slidably sleeved on the positioning member 1, a linking member 12 connected to the sliding sleeve 11, a carrier 13 spaced apart from the sliding sleeve 11 and pivotally connected to the positioning member 1, two support rods 14 pivotally connected to the carrier 13, a first link 15 pivotally connected to the linking member 12, a second link 16 pivotally connected to the carrier 13 and pivotally connected to the first link 15, and a guide block 17 pivotally connected to the second link 16. The sliding sleeve 11 is hollow tubular and has a pivot lug 111, the linking member 12 has a pair of pivot holes 121 and a pair of mounting holes 122 respectively disposed at one side of the corresponding pivot holes 121, the pivot holes 121 each have a circular hole portion 123 and a groove portion 124 recessed from the circular hole portion 123, and the guide block 17 has a T-shaped chuck 171. The support bar 14 and the positioning element 1 each have a pusher 18, and each pusher 18 has two pusher surfaces 181 intersecting in a V-shape. The second connecting rod 16 is pivotally connected between the carrier 13 and the guide block 17.
The supporting unit 20 includes a main supporting member 21 capable of rotating relative to the positioning member 1 and connected to the linking unit 10, two side supporting members 22 respectively pivoted to two sides of the main supporting member 21, and a guiding portion 23 disposed on the main supporting member 21.
The main support 21 has a first end 211, a second end 212 opposite to the first end 211 along a first axial direction X, a pair of long side edges 213 connected between the first end 211 and the second end 212, a main support surface 214 extending from the first end 211 to the second end 212, a main bottom surface 215 opposite to the main support surface 214, a pair of pivot plates 216 disposed at the first end 211 and pivotally connected to the mounting holes 122, a plurality of first pivot tubes 217 disposed at the long side edges 213, and a guide rail 218 extending along the first axial direction X. The collet 171 of the guide block 17 can move along the rail 218 and is coupled to the rail 218. The linking unit 10 approaches the first end 211 and is pivotally connected to the main support 21. The main supporting member 21 further includes a main body 26 and a rail seat 27 screwed to the bottom of the main body 26, the main bottom surface 215 is disposed on the rail seat 27, and the guide rail 218 is recessed from the main bottom surface 215 and has a shape with a wide inner portion and a narrow outer portion (the cross section of the guide rail 218 perpendicular to the first axial direction X is an inverted T shape), so that the chuck 171 can be movably connected.
Each side support 22 has an inner side edge 221 adjacent to one of the long side edges 213 of the main support 21, an outer side edge 222 opposite to the inner side edge 221, a side support surface 223 extending from the inner side edge 221 to the outer side edge 222, a side bottom surface 224 opposite to the side support surface 223, a catch block 24 adjacent to the inner side edge 221 and corresponding to the guide portion 23, and a plurality of second pivot pipes 226 respectively disposed at the inner side edge 221 and pivotally connected to the first pivot pipes 217, the catch block 24 has a catch surface 241 intersecting the side bottom surface 224, a limit surface 242 intersecting the catch surface 241, and a guide surface 243 intersecting the catch surface 241, the limit surface 242 and the guide surface 243 are substantially parallel to the first axial direction X, the catch block 24 is adjacent to the first end 211 of the main support 21, the catch surface is 241, the clamped surface 241 extends from the outer end 244 to the inner end 245, gradually deflects from the outer edge 222 to the inner edge 221 when extending from the second end 212 to the first end 211, a first spacing h1 is generated between the outer end 244 of the clamped surface 241 and the inner edge 221, a second spacing h2 (see fig. 5) smaller than the first spacing h1 is generated between the inner end 245 and the inner edge 221, the clamped surface 241 in the embodiment is smooth and has no turning, the limiting surface 242 intersects with the inner end 245, and the guiding surface 243 intersects with the outer end 244. The side bottom surface 224 is disposed on the engaged block 24.
The guiding portion 23 is disposed between the long side edges 213 and extends along the first axial direction X, the guiding portion 23 is disposed between the main supporting surface 214 and the main bottom surface 215 and parallel to the main supporting surface 214, and the guiding portion 23 corresponds to the first end 211. The guiding portion 23 is recessed in the rail seat 27.
The braking unit 30 extends along a second axial direction Y perpendicular to the first axial direction X, corresponds to the braked block 24, is movably connected to the guiding portion 23, and includes a pivot guiding member 31 movably penetrating through the guiding portion 23, a pair of braking plates 32 respectively connected to both sides of the pivot guiding member 31 along the second axial direction Y, a pair of pivot plates 33 respectively connected to the braking plates 32 and pivotally connected to the linking unit 10, and a pair of pivot portions 34 respectively disposed on the pivot plates 33 and pivotally connected to the pivot holes 121. The pivot member 31 has a rod shape. The detent plates 32 each have a detent portion 321 disposed on a side edge, each of the shaft portions 34 has a cylindrical portion 341, and a protruding portion 342 protruding from the cylindrical portion 341, when the cylindrical portion 341 is fitted into the corresponding circular hole portion 123, the protruding portion 342 can also pass through the corresponding groove portion 124, and when the shaft portion 34 is pivoted relative to the pivot hole 121, the protruding portion 342 is offset relative to the groove portion 124.
For a further understanding of the invention, its role, the technical means employed, and the efficacy attained by its cooperation, it is believed that the invention will be more fully and specifically understood from the following description.
As shown in fig. 1, 6, 7 and 15, when the supporting plate unfolding and folding device of the present invention is assembled and the supporting unit 20 is in the folded state, the positioning member 1 and the supporting rod 14 are close to each other and substantially parallel, and the pushing surfaces 181 of the two adjacent pushing blocks 18 approach each other and are opposite to each other. At this time, the second end 212 of the main support 21 is in a close state approaching to the loading seat 13, the main support 21 and the side supports 22 are in an inverted U shape around the loading seat 13, and the side support surfaces 223 are disposed at an angle relative to the main support surface 214. At this time, the guide block 17 approaches the first end 211, and the latch plates 32 are respectively located between the stopped blocks 24 and the main supporting surfaces 214.
As shown in fig. 8 to 10 and 15, when the operator pulls the second end 212 of the main supporting member 21 upward and the second end 212 is gradually away from the carrying seat 13, the main supporting member 21 pivots relative to the linking member 12 of the linking unit 10, and the linking member 12 is pivoted with the braking unit 30, and the pivot guiding member 31 slidably penetrates through the guiding portion 23, the braking unit 30 rotates while translating along the guiding portion 23, and the braking portion 321 of the braking plate 32 tilts from the main supporting surface 214 toward the main bottom surface 215, so that the braking portion 321 of the braking plate 32 is obliquely braked between the braking surface 241 and the braking block 24 is obliquely braked by the braking plate 32, and the whole side supporting member 22 is driven to rotate relative to the main supporting member 21, until the braking portions 321 are respectively supported by the limiting surfaces 242 as shown in fig. 11 to 14, the arrested blocks 24 are located on both sides of the arresting plate 32 along the second axial direction Y, and the side supporting surfaces 223 are kept in a juxtaposed arrangement with respect to the main supporting surface 214, while the supporting unit 20 is in the unfolded state.
Referring to fig. 15, in the above-mentioned principle of the inclined braking action, the two top drawings in fig. 15 show that the sliding sleeve 11 and the main supporting member 21 are substantially parallel, the braking plate 32 is also substantially parallel to the main supporting member 21, and the braking plate 32 is located between the guiding surface 243 of the braked block 24 and the main supporting member 21. As shown in fig. 8, when the operator continuously pulls the second end 212 of the main support 21 upward, as shown in the middle diagram of fig. 15, the detent plate 32 first contacts the outer end 244 of the detent surface 241, and while the detent plate 32 moves from the second end 212 toward the first end 211, the main support 21 also pivots relative to the linking member 12 of the linking unit 10, the linking member 12 in turn links the detent unit 30, so that the detent plate 32 rotates relative to the main bottom surface 215 during the translation along the guide portion 23, and the detent portion 321 of the detent plate 32 tilts from the main support surface 214 toward the main bottom surface 215, resulting in the detent plate 32 toggling the detent block 24, and then, referring to fig. 5, by the action of the first spacing h1 generated between the outer end 244 of the detent surface 241 and the inner edge 221, the action of the second spacing h2 generated between the inner edge 221 and the inner edge 221 is larger than that, the clamped surface 241 is tapered, so that the side support 22 can only pivot relative to the main support 21 and can only be unscrewed, and the clamping plate 32 can generate an oblique clamping effect on the clamped surface 241. That is, since each of the detent surfaces 241 is inclined from the outer end 244 to the inner end 245, the distance between the detent surface 241 and the inner edge 221 is gradually decreased, when the detent plate 32 moves from the second end 212 to the first end 211, the interference between the detent plate 32 and the detent surface 241 will shift the detent block 24 (the side support 22), and the detent plate 32 will continuously shift the detent block 24 as the detent surface 241 is inclined gradually.
In addition, after the side support 22 is pivoted and unfolded relative to the main support 21, the side support 22 can be maintained in a folded state in which the side support 22 is arranged side by side relative to the main support 21 by the two sides of the detent plate 32 abutting against the limiting surfaces 242 of the side support 22, and the side support 22 cannot be pivoted relative to the main support 21 at will (see the lowest drawing in fig. 15).
As shown in fig. 6, 10 and 13, while the main supporting member 21 pivots relative to the linking member 12 of the linking unit 10, the guide block 17 slides along the guide rail 218 from the first end 211 to the second end 212, the guide block 17 pulls the first connecting rod 15 and the second connecting rod 16, and also links the positioning member 1 to pivot relative to the carriage 13, when the positioning member 1 pivots, the pushing block 18 mounted thereon can push the pushing surface 181 of the adjacent supporting rod 14, and links the adjacent supporting rod 14 to pivot relative to the carriage 13, so that the top ends and the bottom ends of the positioning member 1 and the supporting rod 14 are separated from each other, and the top end of the supporting rod 14 also supports and is positioned at the bottom of the side supporting member 22, so that the side supporting member 22 can generate a stable supporting effect when being unfolded relative to the main supporting member 21.
Conversely, when the operator pulls the sliding sleeve 11 to slide upward along the positioning member 1 and gradually move the second end 212 toward the carrier 13, the state shown in fig. 14 can be gradually changed to the state shown in fig. 8 and fig. 1, and the supporting unit 20 can be restored to the retracted state (the positioning member 1 and the supporting rod 14 are close to each other and substantially parallel, the pushing surfaces 181 of two adjacent pushing blocks 18 are close to each other and opposite to each other), and the second end 212 of the main supporting member 21 is in the closed state approaching the carrier 13.
That is, when the whole supporting plate folding and unfolding apparatus of the present invention is assembled, the pulling unit 30 is linked by the linking unit 10, so that the pulling portion 321 and the pulled surface 241 are pulled obliquely, and the side supporting surface 223 is switched between the folded state in which it is disposed at an angle with respect to the main supporting surface 214 and the unfolded state in which it is disposed in parallel with respect to the main supporting surface 214.
Therefore, the supporting unit 20 of the present invention can be easily converted between the unfolded state and the folded state, and the user only needs to pull the second end 212 of the main supporting member 21 upwards or pull the sliding sleeve 11, so that the user can operate the supporting unit smoothly without bending down for the elderly or the mobility-handicapped. The above-mentioned conversion between the unfolding state and the folding state is mainly to utilize the mutual linkage of the components to convert the supporting unit 20 between the folding state and the unfolding state, so as to make the supporting board unfolding and folding device achieve the purpose of easy folding and unfolding operation.
Referring to fig. 3, in the first embodiment, when the cylindrical portion 341 is sleeved in the corresponding circular hole portion 123, the protrusion 342 can also pass through the corresponding groove portion 124, and after the shaft portion 34 pivots relative to the pivot hole 121, the protrusion 342 is staggered relative to the groove portion 124, so that the shaft portion 34 and the pivot hole 121 can be conveniently installed, and even in operation, the shaft portion 34 cannot easily fall out of the pivot hole 121.
Referring to fig. 16 to 20, the second embodiment of the supporting board folding and unfolding device of the present invention, similar to the first embodiment, also includes a linking unit 10 ', a supporting unit 20 ' and a braking unit 30 '. And the difference from the first embodiment is that the guiding portion 23 'of the supporting unit 20' is in the shape of a chute, and when extending from the second end 212 'to the first end 211', the guiding portion extends gradually from the main supporting surface 214 'to the main bottom surface 215', the braking unit 30 'includes a pivot guiding member 31' capable of moving and passing through the guiding portion 23 ', and a pair of pivot plates 33' respectively connected to the pivot guiding member 31 'and directly pivoted to the linking unit 10' by rivets. The pivot guiding member 31 ' is rod-shaped, and both ends of the pivot guiding member 31 ' are respectively provided with a stopper portion 321 '.
By the cooperation of the guiding portion 23 'in the form of a chute and the pivot guiding member 31', when the operator pulls the second end 212 'of the main supporting member 21' or pulls the sliding sleeve 11 upward, and the main supporting member 21 'pivots relative to the linking member 12' of the linking unit 10 ', the braking portion 321' and the braked surface 241 'can be braked obliquely, and the supporting unit 20' can be switched between the retracted state and the deployed state. The operation of the inclined braking between the braking portion 321 ' and the braked surface 241 ' of the braked block 24 ' is similar to the first embodiment, so that no further description is provided.
Therefore, the second embodiment of the supporting plate unfolding and folding device of the invention can also achieve the same purpose and effect as the first embodiment.
Referring to fig. 21, the third embodiment of the supporting board folding and unfolding apparatus of the present invention, similar to the first embodiment, also includes a linking unit 10, a supporting unit 20 and a braking unit 30 ″. And is different from the first embodiment in that the stopper unit 30 "includes a rod-shaped pivot guide 31", two stopper plates 32 "connected to the pivot guide 31", and a link 33 "pivotally connected between one of the stopper plates 32" and the interlocking unit 10 ". The third embodiment of the supporting board folding and unfolding device of the present invention can also achieve the same objects and effects as the first and second embodiments.
Referring to fig. 22 to 23, the fourth embodiment of the supporting plate unfolding and folding device of the present invention also includes a linking unit 10, a supporting unit 200 and a pulling unit 300. The arrested surface 241 of the side support 220 approaches the second end 212 of the main support 210, the outer edge 222 of the arrested surface 241 gradually leans towards the inner edge 221 when the outer end 244 extends towards the inner end 245, and the inner edge 221 of the arrested surface 241 of the arrested surface 240 gradually leans towards the outer edge 222 when the second end 212 extends towards the first end 211. The guiding part 230 of the supporting unit 200 is disposed between the main supporting surface 214 and the main bottom surface 215, the guiding part 230 of this embodiment is the guiding rail 218 of the first embodiment, the guiding part 230 extends from the second end 212 to the first end 211, the pivoting member 310 of this embodiment is the guiding block 17 of the first embodiment, the pivoting member 310 is block-shaped and can move along the guiding part 230 (guiding rail), and the second connecting rod 16 is pivotally connected between the carriage 13 and the pivoting member 310. The detent plate 320 of the detent unit 300 is integrally connected to the pivot guide 310, and each detent plate 320 has a detent portion 321 corresponding to the detent surface 241.
The fourth embodiment of the present invention operates in the same manner as the above embodiments, and can achieve the same purpose and effect as the above embodiments.
Referring to fig. 24 and 25, the fifth embodiment of the supporting plate folding and unfolding apparatus of the present invention also includes a linking unit 10, a supporting unit 200 'and a braking unit 300'. The guiding portions 230 'of the supporting unit 200' are rib-shaped, and two guiding portions 230 'are disposed on the engaged blocks 240' respectively, and the guiding portions 230 'are substantially parallel to the side supporting surfaces 223 and intersect with the engaged surfaces 241' and the limiting surfaces 242 to form an L shape. When the supporting unit 200 ' is switched between the unfolded state and the folded state, the end of the pulling plate 320 ' of the pulling unit 300 ' is guided by the guiding portion 230 ', and can be movably connected to the guiding portion 230 '.
In summary, the supporting plate unfolding and folding device of the present invention can easily unfold and fold the supporting unit by a simple structure and a simple operation manner, and can indeed achieve the purpose of the present invention.
Claims (14)
1. The utility model provides a backup pad exhibition is received and is put, can fix a position for the setting element to contain the support element, connect in the linkage unit of support element and brake the unit, its characterized in that:
the supporting unit comprises a main supporting piece connected to the positioning piece, at least one side supporting piece pivoted to the main supporting piece, and a guiding part arranged on one of the main supporting piece and the side supporting piece, wherein the main supporting piece is provided with a main supporting surface, the side supporting piece is provided with an inner side edge adjacent to the main supporting piece, an outer side edge opposite to the inner side edge, a side supporting surface extending from the inner side edge to the outer side edge, a side bottom surface opposite to the side supporting surface, and a braked block corresponding to the guiding part, the braked block is provided with a braked surface intersecting with the side bottom surface, the braked surface is provided with an outer side end and an inner side end opposite to the outer side end, and the braked surface gradually deflects to the inner side edge when extending from the outer side end to the inner side end;
the linkage unit is connected with the main supporting piece;
the braking unit corresponds to the braked block, can move and is connected to the guide part, and comprises at least one braking part, the braking unit is linked by the linkage unit, so that the braking part and the braked surface can be braked obliquely, and the side supporting surface is switched between a folding state in which the side supporting surface is arranged at an angle relative to the main supporting surface and an unfolding state in which the side supporting surface is arranged in parallel relative to the main supporting surface.
2. The supporting plate folding and unfolding apparatus according to claim 1, wherein: a first interval is generated between the outer side end of the clamped surface of the supporting unit and the inner side edge, and a second interval smaller than the first interval is generated between the inner side end and the inner side edge.
3. The supporting plate unfolding and folding device according to claim 2, wherein: the clamped surface of the supporting unit is smooth and has no turning shape.
4. The device of claim 2, wherein: the main supporting piece of the supporting unit is also provided with a first end, a second end opposite to the first end along a first axial direction, a pair of long side edges connected between the first end and the second end, and a main bottom surface opposite to the main supporting surface, the guiding part is in a guide rail shape and arranged between the long side edges and extends corresponding to the first axial direction, the inner side edge of the side supporting piece is opposite to one of the long side edges, the side bottom surface is arranged on the braked block, and the braking unit also comprises a pivot guiding piece which is arranged on one side of the braking part, can move and penetrates through the guiding part.
5. The supporting plate unfolding and folding device as claimed in claim 4, wherein: the clamped block of the side supporting piece of the supporting unit is adjacent to the first end of the main supporting piece, the clamped surface of the clamped block is in an inclined plane shape, and the clamped block gradually extends from the outer side edge to the inner side edge when extending from the second end to the first end.
6. The supporting plate unfolding and folding device as claimed in claim 5, wherein: the guide part of the support unit is arranged between the main support surface and the main bottom surface and is parallel to the main support surface, the guide part corresponds to the first end, the linkage unit approaches to the first end and is pivoted to the main support piece, the pivot guide piece of the braking unit is rod-shaped, the braking unit further comprises at least one braking plate connected to the pivot guide piece and a pivot plate connected to the braking plate and pivoted to the linkage unit, and the braking part and the pivot plate are respectively arranged at two ends of the braking plate.
7. The supporting plate unfolding and folding device as claimed in claim 4, wherein: the guide part of the support unit is in a chute shape, and gradually slantingly extends from the main support surface to the main bottom surface when extending from the second end to the first end, the guide part corresponds to the first end, the linkage unit approaches to the first end and is pivoted to the main support piece, the pivot guide piece of the braking unit is in a rod shape, the braking unit further comprises a pivot plate which is connected to the pivot guide piece and is pivoted to the linkage unit, and the braking part is arranged at the tail end of the pivot guide piece.
8. The device of claim 4, wherein: the guide part of the support unit is arranged between the main support surface and the main bottom surface and is parallel to the main support surface, the guide part corresponds to the first end, the linkage unit approaches to the first end and is pivoted to the main support piece, the pivot guide piece of the braking unit is rod-shaped, the braking unit further comprises at least one braking plate connected to the pivot guide piece and a connecting rod pivoted between the braking plate and the linkage unit.
9. The device of claim 4, wherein: the clamped block of the side support piece approaches the second end of the main support piece, and the clamped surface of the clamped block gradually slants and extends from the inner side edge to the outer side edge when the clamped surface extends from the second end to the first end.
10. The supporting plate unfolding and folding device according to claim 9, wherein: the guide part of the support unit is arranged between the main support surface and the main bottom surface, the guide part extends from the second end to the first end, the braking unit is also provided with a braking plate connected with the pivot guide piece, and the braking plate is provided with a braking part corresponding to the braked surface.
11. The supporting plate unfolding and folding device as claimed in claim 4, wherein: the main supporting piece of the supporting unit is further provided with a guide rail, the number of the side supporting pieces is two, the two side supporting pieces are respectively pivoted to two sides of the main supporting piece, the linkage unit comprises a carrying seat pivoted to the positioning piece, two supporting rods pivoted to the carrying seat, a linkage piece approaching to the first end and pivoted to the main supporting piece, a sliding sleeve connected to the linkage piece and sleeved on the positioning piece, a first connecting rod pivoted to the linkage piece, a second connecting rod pivoted to the carrying seat and pivoted to the first connecting rod, and a guide block pivoted to the second connecting rod, the guide block can be movably connected to the guide rail along the guide rail, and the supporting rods are supported to the bottom of the side supporting pieces when the side supporting surfaces are in an unfolded state relative to the main supporting surfaces.
12. The supporting plate unfolding and folding device as claimed in claim 4, wherein: the linkage piece of the linkage unit is provided with at least one pivot hole, the pivot hole is provided with a round hole part and a groove part which is concavely arranged from the round hole part to the outside, the braking unit also comprises at least one shaft part which is pivoted on the pivot hole, the shaft part is provided with a cylindrical part and a protruding part which is convexly arranged from the cylindrical part to the outside, when the cylindrical part of the shaft part is sleeved in the round hole part, the protruding part can also pass through the groove part, and after the shaft part pivots relative to the pivot hole, the protruding part is staggered relative to the groove part.
13. The supporting plate unfolding and folding device according to claim 1, wherein: the braking part of the braking unit is supported against the limiting surface, and the side supporting surface is kept in an unfolded state relative to the main supporting surface.
14. The device of claim 13, wherein: the guide part of the support unit is in a convex rib shape and is arranged on the clamped block, and the guide part is substantially parallel to the side support surface and is intersected with the clamped surface and the limiting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110180869.9A CN114903262A (en) | 2021-02-08 | 2021-02-08 | Supporting plate unfolding and folding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110180869.9A CN114903262A (en) | 2021-02-08 | 2021-02-08 | Supporting plate unfolding and folding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114903262A true CN114903262A (en) | 2022-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110180869.9A Pending CN114903262A (en) | 2021-02-08 | 2021-02-08 | Supporting plate unfolding and folding device |
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| Country | Link |
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| CN (1) | CN114903262A (en) |
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