CN209883536U - Folding chair and folding mechanism thereof - Google Patents
Folding chair and folding mechanism thereof Download PDFInfo
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- CN209883536U CN209883536U CN201920481961.7U CN201920481961U CN209883536U CN 209883536 U CN209883536 U CN 209883536U CN 201920481961 U CN201920481961 U CN 201920481961U CN 209883536 U CN209883536 U CN 209883536U
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Abstract
The utility model provides a folding chair, include: two folding mechanisms, both of which are plane-symmetric about the first plane; the folding mechanism comprises a first supporting rod, a second supporting rod, a first driving rod, a second driving rod and a first connecting rod; the first X-shaped folding frame comprises two first transmission rods, the middle parts of the two first transmission rods are hinged to a seventh hinge point, the two first transmission rods can rotate around a seventh axis of the seventh hinge point, and the seventh axis is located on a first plane; the second X-shaped folding frame comprises two second transmission rods, the middle parts of the two second transmission rods are hinged to an eighth hinge point, the two second transmission rods can surround an eighth axis of the eighth hinge point to rotate, and the eighth axis is located on the first plane. The folding chair has the advantages of simple and convenient unfolding and folding steps, small occupied space after folding and stable structure after unfolding.
Description
Technical Field
The invention relates to the field of household articles, in particular to a folding chair and a folding mechanism.
Background
A chair is common furniture, and a folding chair is developed for the convenience of use and storage. Although the existing folding chair can be folded, the problems of complicated folding process, large occupied space after folding, unstable structure after unfolding and the like generally exist. Therefore, there is a need to improve the prior art and develop a folding chair which is convenient to fold, occupies small space after being folded and has a stable structure after being unfolded.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the folding chair aims at solving the problems that the folding process of the traditional folding chair is complicated, the occupied space is large after the folding chair is folded, and the structure is unstable after the folding chair is unfolded. The present invention provides a folding chair and a folding mechanism to solve the above problems.
The technical scheme adopted by the invention for solving the technical problems is as follows: a folding mechanism comprising:
the device comprises a first supporting rod, a second supporting rod, a first driving rod, a second driving rod and a first connecting rod;
the first end part of the first supporting rod and the first end part of the second supporting rod are hinged to a first hinge point; the first support bar and the second support bar are rotatable about a first axis about the first hinge point;
the first connecting rod and the second supporting rod are hinged at a second hinge point; the second hinge point is closer to the second end of the second support bar than the first hinge point; the second hinge point is located between the first end and the second end of the first link; the first connecting rod and the second supporting rod can rotate around a second axis of the second hinge point;
the first driving rod and the first support rod are hinged to a third hinged point, and the third hinged point is closer to the second end part of the first support rod relative to the first hinged point; the third hinge point is positioned between the first end part and the second end part of the first driving rod; the first active lever and the first support lever can rotate around a third axis of the third hinge point;
the second end part of the second driving rod and the second end part of the first driving rod are hinged to a fourth hinge point; the second driving rod and the first driving rod can rotate around a fourth axis of the fourth hinge point;
the second driving rod is in sliding fit with a first sliding sleeve, a first end part of the first connecting rod and the first sliding sleeve are hinged to a fifth hinge point, and the first sliding sleeve and the first connecting rod can rotate around a fifth axis passing through the fifth hinge point;
a second sliding sleeve is in sliding fit with the first supporting rod; the second sliding sleeve is closer to the second end of the first supporting rod relative to the third hinge point; the second end of the first connecting rod and the second sliding sleeve are hinged to a sixth hinge point, and the second sliding sleeve and the first connecting rod can rotate around a sixth axis passing through the sixth hinge point;
the first axis, the second axis, the third axis, the fourth axis, the fifth axis and the sixth axis are parallel to each other.
Preferably, the device further comprises a second limiting rod, a first end of the second limiting rod is hinged to a fourth hinge point with the second driving rod, and the second limiting rod can rotate around the fourth axis;
the second end part of the second limiting rod is hinged with the second supporting rod at an eighteenth hinge point, and the eighteenth hinge point is closer to the second end part of the second supporting rod relative to the second hinge point; the second limiting rod and the second supporting rod can rotate around an eighteenth axis of the eighteenth hinge point;
the eighteenth axis and the first axis are parallel to each other.
Preferably, a limiting block is fixed to a first end of the second limiting rod, and the limiting block and a second end of the first supporting rod are respectively located on two sides of the second supporting rod.
Preferably, a fifth sliding sleeve is slidably fitted on the second support rod, and the fifth sliding sleeve is closer to the second end of the second support rod relative to the second hinge point;
the fifth sliding sleeve is hinged with the first driving rod and/or the second driving rod, and a hinged shaft is parallel to the first axis.
Preferably, the first driving lever and the first end portion of the first limiting lever are hinged to a ninth hinge point, the ninth hinge point is closer to the first end portion of the first driving lever than the third hinge point, and the first limiting lever and the first driving lever can rotate around a ninth axis passing through the ninth hinge point;
a third sliding sleeve is matched on the first supporting rod in a sliding mode, and the third sliding sleeve is closer to the second end of the first supporting rod relative to the second sliding sleeve; the second end of the first limiting rod and the third sliding sleeve are hinged to a fifteenth hinge point, and the first limiting rod and the third sliding sleeve can rotate around a fifteenth axis of the fifteenth hinge point;
the ninth axis, the fifteenth axis and the first axis are parallel to each other.
Preferably, the handrail device further comprises a handrail rod, and an extension section extends out of the first end part of the second supporting rod along the length direction of the second supporting rod;
the first end part of the armrest rod and the first sliding sleeve are hinged to a sixteenth hinge point, and the armrest and the first sliding sleeve can rotate around a sixteenth axis of the sixteenth hinge point;
a fourth sliding sleeve is slidably matched on the grab rail, the end part of the extension section and the fourth sliding sleeve are hinged at a seventeenth hinge point, and the extension section and the fourth sliding sleeve can rotate around a seventeenth axis passing through the seventeenth hinge point;
the sixteenth axis, the seventeenth axis and the first axis are parallel to each other.
A folding chair comprising two of said folding mechanisms:
the two folding mechanisms are plane-symmetric about the first plane; the first axis is perpendicular to the first plane;
the folding chair comprises a first X-shaped folding frame and a second X-shaped folding frame;
the first X-shaped folding frame comprises two first transmission rods, the middle parts of the two first transmission rods are hinged to a seventh hinge point, the two first transmission rods can rotate around a seventh axis of the seventh hinge point, and the seventh axis is located on a first plane;
the first driving rod and the first connecting piece are hinged to the ninth hinge point, and can rotate around the ninth axis;
the second end part of the first supporting rod is hinged with a second connecting piece, the second end part of the first supporting rod and the second connecting piece are hinged with a tenth hinge point, the first supporting rod and the second connecting piece can rotate around a tenth axis of the tenth hinge point, and the tenth axis is perpendicular to the first plane;
the first end parts of the two first transmission rods are respectively hinged with the two first connecting pieces at two eleventh hinging points, two eleventh axes respectively pass through the two eleventh hinging points and are parallel to the seventh axis, and the first transmission rods and the first connecting pieces can rotate around tenth axes passing through the first transmission rods and the first connecting pieces;
the second end parts of the two first transmission rods are respectively hinged with two second connecting pieces at two twelfth hinge points, two twelfth axes respectively pass through the two twelfth hinge points and are parallel to the seventh axis, and the first transmission rods and the second connecting pieces can rotate around the twelfth axes passing through the first transmission rods and the second connecting pieces;
the second X-shaped folding frame comprises two second transmission rods, the middle parts of the two second transmission rods are hinged to an eighth hinge point, the two second transmission rods can rotate around an eighth axis of the eighth hinge point, and the eighth axis is located on a first plane;
a third connecting piece is hinged to the first driving rod, the third connecting piece and the first driving rod are hinged to the fourth hinge point, and the third connecting piece can rotate around the fourth axis;
the first end parts of the two second transmission rods are respectively hinged with the two first sliding sleeves at two thirteenth hinge points, two thirteenth axes respectively pass through the two thirteenth hinge points and are parallel to the eighth axis, and the second transmission rods and the first sliding sleeves can rotate around a thirteenth axis passing through the second transmission rods and the first sliding sleeves;
the second ends of the two second transmission rods are respectively hinged with the two third connecting pieces at two fourteenth hinging points, two fourteenth axes respectively pass through the two fourteenth hinging points and are parallel to the eighth axis, and the second transmission rods and the third connecting pieces can rotate around a fourteenth axis passing through the second transmission rods and the third connecting pieces.
Preferably, the cloth cover is further included, four sleeves are sewn on the cloth cover, and the four sleeves are respectively sleeved on the two second driving rods and the first driving rod.
The folding chair has the advantages that the steps of unfolding and folding are simple and convenient, the occupied space is small after the folding chair is folded, and the structure is stable after the folding chair is unfolded.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Figure 1 is a schematic structural view of a preferred embodiment of a folding chair of the present invention.
Figure 2 is a partial schematic view of a preferred embodiment of a folding chair of the present invention.
Figure 3 is a partial schematic view of the folding mechanism of the preferred embodiment of the folding chair of the present invention.
Figure 4 is a schematic view of the folding mechanism of the preferred embodiment of the folding chair of the present invention.
Figure 5 is a schematic view of the first X-shaped folding leg of a preferred embodiment of the folding chair of the present invention.
Figure 6 is a schematic view of a second X-shaped folding leg of a preferred embodiment of the folding chair of the present invention.
Figure 7 is a partial schematic view of a preferred embodiment of a folding chair of the present invention.
Figure 8 is a partial schematic view of a preferred embodiment of a folding chair of the present invention.
Figure 9 is a partial schematic view of a preferred embodiment of a folding chair of the present invention.
Figure 10 is a partial schematic view of a preferred embodiment of a folding chair of the present invention.
Figure 11 is a partial schematic view of a preferred embodiment of a folding chair of the present invention.
In the figure, 1, a folding mechanism, 2, a first X-shaped folding leg, 3, a second X-shaped folding leg, 4, a cloth cover, 101, a first supporting rod, 102, a second supporting rod, 103, a first driving rod, 104, a second driving rod, 105, a first connecting rod, 106, a first limiting rod, 107, a grab bar, 108, a second limiting rod, 109, a limiting block, 201, a first driving rod, 301, a second driving rod, 501, a first sliding sleeve, 502, a second sliding sleeve, 503, a third sliding sleeve, 504, a fourth sliding sleeve, 601, a first connecting piece, 602, a second connecting piece, 603, a third connecting piece, 701, a first hinge point, 702, a second hinge point, 703, a third hinge point, 704, a fourth hinge point, 705, a fifth hinge point, 706, a sixth hinge point, 707, a seventh hinge point, 708, an eighth hinge point, 709, a ninth, 7010, a tenth hinge point, 7011, and an eleventh hinge point, 7012. a twelfth hinge point, 7013, a thirteenth hinge point, 7014, a fourteenth hinge point, 7015, a fifteenth hinge point, 7016, a sixteenth hinge point, 7017, a seventeenth hinge point, 7018, an eighteenth hinge point.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 to 11, the present invention provides a first embodiment of a folding chair, comprising:
two folding mechanisms 1, two folding mechanisms 1 are symmetrical about a first plane.
The folding mechanism 1 includes a first support lever 101, a second support lever 102, a first active lever 103, a second active lever 104, and a first link 105.
The first end of the first support rod 101 and the first end of the second support rod 102 are hinged to the first hinge point 701 through a first bolt and a first nut, and the axis of the first bolt is perpendicular to the first plane.
The first link 105 and the second support rod 102 are hinged to the second hinge point 702 through a second bolt and a second nut, the second hinge point 702 is closer to the second end of the second support rod 102 relative to the first hinge point 701, the second hinge point 702 is located between the first end and the second end of the first link 105, and the axis of the second bolt is perpendicular to the first plane.
The first driving rod 103 and the first support rod 101 are hinged to a third hinge point 703 through a third bolt and a third nut, the third hinge point 703 is closer to the second end of the first support rod 101 relative to the first hinge point 701, the third hinge point 703 is located between the first end and the second end of the first driving rod 103, and an axis of the third bolt is perpendicular to the first plane.
The second end of the second driving lever 104 and the second end of the first driving lever 103 are hinged to a fourth hinge point 704 through a fourth bolt and a fourth nut, and the axis of the fourth bolt is perpendicular to the first plane.
A first sliding sleeve 501 is slidably fitted on the second active lever 104. The first end of the first link 105 and the first sliding sleeve 501 are hinged to a fifth hinge point 705 through a fifth bolt and a fifth nut, and the axis of the fifth bolt is perpendicular to the first plane;
a second runner 502 is slidably fitted on the first support rod 101, and the second runner 502 is closer to the second end of the first support rod 101 than to the third hinge point 703. The second end of the first link 105 and the second sliding sleeve 502 are hinged to a sixth hinge point 706 by a sixth bolt and a sixth nut, the axis of which is perpendicular to the first plane.
The first X-shaped folding leg 2 includes two first transmission bars 201. The middle parts of the two first transmission rods 201 are hinged to a seventh hinge point 707 through seventh bolts and seventh nuts, and the axes of the seventh bolts are located in the first plane.
The first driving lever 103 is hinged to a first connecting piece 601, the first driving lever 103 and the first connecting piece 601 are hinged to a ninth hinge point 709 through a ninth bolt and a ninth nut, and the ninth bolt is closer to the first end of the first driving lever 103 than the third bolt. The axis of the ninth bolt is perpendicular to the first plane.
The second end of the first supporting rod 101 is hinged to the second connecting member 602, and the second end of the first supporting rod 101 and the second connecting member 602 are hinged to the tenth hinge point 7010 through the tenth bolt and the tenth nut. The axis of the tenth nut is perpendicular to the first plane.
First end portions of the two first transmission rods 201 are hinged to the two first connecting pieces 601 through eleventh bolts and eleventh nuts respectively, and are hinged to the two eleventh hinge points 7011. The axis of the eleventh bolt is parallel to the axis of the seventh bolt.
The second end portions of the two first driving levers 201 are respectively hinged to two twelfth hinge points 7012 through a twelfth bolt and a twelfth nut and two second connecting pieces 602. The axis of the twelfth bolt is parallel to the axis of the seventh bolt.
The second X-shaped folding leg 3 comprises two second driving levers 301. The middle portions of the two second driving levers 301 are hinged to the eighth hinge point 708 by an eighth bolt and an eighth nut. The axis of the eighth nut lies in the first plane.
The first driving lever 103 is hinged to a third connecting member 603, and the third connecting member 603 and the first driving lever 103 are hinged to a fourth hinge point 704.
First end parts of the two second transmission rods 301 are respectively hinged to the two thirteenth hinge points 7013 through a thirteenth bolt and a thirteenth nut, and the axis of the thirteenth bolt is parallel to the axis of the eighth bolt.
The second end portions of the two second driving rods 301 are hinged to the two fourteenth hinge points 7014 through fourteenth bolts and fourteenth nuts, respectively, and the axis of the fourteenth nut is parallel to the axis of the eighth nut.
The folding chair further comprises a cloth cover 4, wherein four sleeves are sewn on the cloth cover 4 and are respectively sleeved on the two second driving rods 104 and the first driving rod 103. When the folding chair is unfolded, the cloth cover 4 between the two first driving rods 103 forms a stool surface, and the cloth cover 4 between the two second driving rods 104 forms a chair back.
The principle of unfolding and folding the folding chair is as follows, when the chair is in the folding state, the user respectively holds the first end of the first active rod 103 and the first end of the second active rod 104 of any one folding mechanism 1 by hand, when the user exerts force to make the distance between the first end of the first active rod 103 and the first end of the second active rod 104 larger, the included angle between the first active rod 103 and the second active rod 104 becomes larger, the first sliding sleeve 501 slides towards the second end of the second active rod 104, the second sliding sleeve 502 slides towards the first end of the first support rod 101, and at the same time, the included angle between the first support rod 101 and the second support rod 102 also becomes larger. The unfolding of the folding mechanism 1 is thus completed, and during the unfolding of the folding mechanism 1, the distance between the ninth hinge point 709 and the tenth hinge point 7010 becomes smaller, the distance between the first sliding sleeve 501 and the fourth hinge point 704 becomes smaller, correspondingly, the distance between the eleventh hinge point 7011 and the twelfth hinge point 7012 of the first X-shaped folding leg 2 becomes smaller, and the distance between the two eleventh hinge points 7011 of the first X-shaped folding leg 2 becomes larger; the distance between the thirteenth hinge point 7013 and the fourteenth hinge point 7014 of the second X-shaped folding leg 3 becomes smaller and the distance between the two thirteenth hinge points 7013 of the second X-shaped folding leg 3 becomes larger. It can be seen that when a single folding mechanism 1 is unfolded, under the action of the first X-shaped folding leg 2 and the second X-shaped folding leg 3, the other folding mechanism 1 is also unfolded synchronously and the distance between the two folding mechanisms 1 is gradually increased, thereby completing the unfolding of the whole folding chair. The second ends of the two first support bars 101 and the second ends of the two second support bars 102 form four legs of the chair after unfolding.
When the chair is in the unfolded state, a user respectively holds the first end portion of the first active rod 103 and the first end portion of the second active rod 104 of any one of the folding mechanisms 1 with a hand, when the user applies force to reduce the distance between the first end portion of the first active rod 103 and the first end portion of the second active rod 104, the included angle between the first active rod 103 and the second active rod 104 becomes smaller, the first sliding sleeve 501 slides towards the first end portion of the second active rod 104, and the second sliding sleeve 502 slides towards the second end portion of the first support rod 101, and meanwhile, the included angle between the first support rod 101 and the second support rod 102 also becomes smaller until the included angle between the first support rod 101 and the second support rod 102 reaches the minimum. The folding of the folding mechanism 1 is thus completed, and during the folding of the folding mechanism 1, the distance between the ninth hinge point 709 and the tenth hinge point 7010 is increased, the distance between the first sliding sleeve 501 and the fourth hinge point 704 is also increased, correspondingly, the distance between the eleventh hinge point 7011 and the twelfth hinge point 7012 of the first X-shaped folding leg 2 is increased, and the distance between the eleventh hinge points 7011 of the first X-shaped folding leg 2 is decreased; the distance between the thirteenth hinge point 7013 and the fourteenth hinge point 7014 of the second X-shaped folding leg 3 becomes larger and the distance between the two thirteenth hinge points 7013 of the second X-shaped folding leg 3 becomes smaller. It can be seen that when a single folding mechanism 1 is folded, under the action of the first X-shaped folding leg 2 and the second X-shaped folding leg 3, the other folding mechanism 1 is also folded in synchronization and the distance between the two folding mechanisms 1 is gradually reduced. When the included angle between the first supporting rod 101 and the second supporting rod 102 reaches the minimum, the first supporting rod 101 is close to the second supporting rod 102, the first driving rod 103 is close to the second driving rod 104, the first connecting rod 105 is close to the first supporting rod 101, and the two folding mechanisms 1 are also close to the first plane. Thereby completing the folding of the entire folding chair.
According to the second embodiment, on the basis of the first embodiment, the folding mechanism 1 of the folding chair further includes a first limiting rod 106, and a first end of the first limiting rod 106 and the first active lever 103 are hinged to the ninth hinge point 709.
A third runner 503 is slidably fitted on the first support rod 101, and the third runner 503 is closer to the second end of the first support rod 101 than the second runner 502. The second end of the first limiting rod 106 is hinged to the fifteenth hinge point 7015 through a fifteenth bolt and a fifteenth nut with the third sliding sleeve 503. The axis of the fifteenth nut is perpendicular to the first plane.
In this embodiment, when the folding chair is unfolded, the third sliding sleeve 503 slides towards the second end of the first supporting rod 101, and when the third sliding sleeve 503 slides to abut against the second connecting member 602, it acts as a limit, preventing the folding mechanism 1 from further unfolding, and ensuring the stability of the structure of the folding chair when the folding chair is unfolded, which is the unfolded state of the folding chair.
According to the third embodiment, on the basis of the second embodiment, the folding mechanism 1 of the folding chair further comprises a grab bar 107, and the first end of the second support bar 102 is extended along the length direction thereof.
The first end of the grab bar 107 is hinged to the sixteenth hinge point 7016 through a sixteenth bolt and a sixteenth nut, and the axis of the sixteenth bolt is perpendicular to the first plane.
The grab bar 107 is slidably fitted with a fourth sliding sleeve 504, the end of the extending section and the fourth sliding sleeve 504 are hinged to a seventeenth hinge point 7017 through a seventeenth bolt and a seventeenth nut, and the axis of the seventeenth nut is perpendicular to the first plane.
In this embodiment, during the folding process of the folding chair, the first sliding sleeve 501 slides towards the first end of the second active rod 104, and the fourth sliding sleeve 504 slides towards the first end of the grab bar 107, after the folding of the folding chair is completed, the grab bar 107 is close to the second support rod 102, so that the folding space of the whole folding chair is small.
In the unfolding process of the folding chair, the first sliding sleeve 501 slides towards the second end of the second driving rod 104, and the fourth sliding sleeve 504 slides towards the second end of the armrest rod 107, so that after the folding chair is unfolded, the two armrest rods 107 form two armrests of the folding chair for the user to lean on, and the user can sit more comfortably.
According to the fourth embodiment, on the basis of the third embodiment, the folding mechanism 1 of the folding chair further comprises a second limiting rod 108, and a first end of the second limiting rod 108 and the second driving rod 104 are hinged to the fourth hinge point 704.
The second end of the second limiting rod 108 is hinged to the eighteenth hinge point 7018 with the second support rod 102 through an eighteenth bolt and an eighteenth nut, and the eighteenth hinge point 7018 is closer to the second end of the second support rod 102 relative to the second hinge point 702. The axis of the eighteenth bolt is perpendicular to the first plane.
A limiting block 109 is fixed to a first end of the second limiting rod 108, and the limiting block 109 and a second end of the first supporting rod 101 are respectively located at two sides of the second supporting rod 102. The second limiting rod 108 can rotate around the eighteenth bolt, but when the first end of the second limiting rod 108 rotates to be close to the second support rod 102, the limiting block 109 can abut against the second support rod 102, and the second limiting rod 108 is prevented from rotating continuously.
In this embodiment, when the folding chair is completely unfolded, the stop block 109 abuts against the second support bar 102 and the stop block 109 is closer to the first end of the second support bar 102 relative to the eighteenth bolt, which ensures the stability of the structure of the folding chair when unfolded.
According to the fifth embodiment, on the basis of the third embodiment, a fifth sliding sleeve is slidably fitted on the second support rod 102, and the fifth sliding sleeve is closer to the second end of the second support rod 102 relative to the second hinge point 702.
The fifth sliding sleeve is hinged to the fourth hinge point 704 together with the first active lever 103 and the second active lever 104.
In this embodiment, during the unfolding process of the folding chair, the fifth sleeve slides towards the first end of the second support rod 102 and drives the second support rod 102 to rotate around the first axis, so that the included angle between the second support rod 102 and the first support rod 101 is increased. During the folding process of the folding chair, the fifth sleeve slides towards the second end of the second support rod 102 and drives the second support rod 102 to rotate around the first axis, so that the included angle between the second support rod 102 and the first support rod 101 is reduced.
It should be noted that the fifth sliding sleeve is not limited to be hinged at the fourth hinge point 704. The fifth sliding sleeve and the first driving rod 103 can be hinged to a nineteenth hinge point, and the nineteenth hinge point is located on the first driving rod 103 and close to the fourth hinge point 704; the fifth sliding sleeve may also be hinged to the second active lever 104 at a twentieth hinge point, which is located on the second active lever 104 near the fourth hinge point 704.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. A folding mechanism is characterized in that:
the device comprises a first supporting rod, a second supporting rod, a first driving rod, a second driving rod and a first connecting rod;
the first end part of the first supporting rod and the first end part of the second supporting rod are hinged to a first hinge point; the first support bar and the second support bar are rotatable about a first axis about the first hinge point;
the first connecting rod and the second supporting rod are hinged at a second hinge point; the second hinge point is closer to the second end of the second support bar than the first hinge point; the second hinge point is located between the first end and the second end of the first link; the first connecting rod and the second supporting rod can rotate around a second axis of the second hinge point;
the first driving rod and the first support rod are hinged to a third hinged point, and the third hinged point is closer to the second end part of the first support rod relative to the first hinged point; the third hinge point is positioned between the first end part and the second end part of the first driving rod; the first active lever and the first support lever can rotate around a third axis of the third hinge point;
the second end part of the second driving rod and the second end part of the first driving rod are hinged to a fourth hinge point; the second driving rod and the first driving rod can rotate around a fourth axis of the fourth hinge point;
the second driving rod is in sliding fit with a first sliding sleeve, a first end part of the first connecting rod and the first sliding sleeve are hinged to a fifth hinge point, and the first sliding sleeve and the first connecting rod can rotate around a fifth axis passing through the fifth hinge point;
a second sliding sleeve is in sliding fit with the first supporting rod; the second sliding sleeve is closer to the second end of the first supporting rod relative to the third hinge point; the second end of the first connecting rod and the second sliding sleeve are hinged to a sixth hinge point, and the second sliding sleeve and the first connecting rod can rotate around a sixth axis passing through the sixth hinge point;
the first axis, the second axis, the third axis, the fourth axis, the fifth axis and the sixth axis are parallel to each other.
2. A folding mechanism as claimed in claim 1, wherein:
the first end part of the second limiting rod and the second driving rod are hinged to a fourth hinge point, and the second limiting rod can rotate around the fourth axis;
the second end part of the second limiting rod is hinged with the second supporting rod at an eighteenth hinge point, and the eighteenth hinge point is closer to the second end part of the second supporting rod relative to the second hinge point; the second limiting rod and the second supporting rod can rotate around an eighteenth axis of the eighteenth hinge point;
the eighteenth axis and the first axis are parallel to each other.
3. A folding mechanism as claimed in claim 2, wherein:
the first end of the second limiting rod is fixed with a limiting block, and the limiting block and the second end of the first supporting rod are respectively positioned at two sides of the second supporting rod.
4. A folding mechanism as claimed in claim 1, wherein:
a fifth sliding sleeve is matched on the second supporting rod in a sliding manner, and the fifth sliding sleeve is closer to the second end part of the second supporting rod relative to the second hinge point;
the fifth sliding sleeve is hinged with the first driving rod and/or the second driving rod, and a hinged shaft is parallel to the first axis.
5. A folding mechanism as claimed in any one of claims 1 to 4, wherein:
the first end part of the first limiting rod and the first driving rod are hinged to a ninth hinge point, the ninth hinge point is closer to the first end part of the first driving rod relative to the third hinge point, and the first limiting rod and the first driving rod can rotate around a ninth axis passing through the ninth hinge point;
a third sliding sleeve is matched on the first supporting rod in a sliding mode, and the third sliding sleeve is closer to the second end of the first supporting rod relative to the second sliding sleeve; the second end of the first limiting rod and the third sliding sleeve are hinged to a fifteenth hinge point, and the first limiting rod and the third sliding sleeve can rotate around a fifteenth axis of the fifteenth hinge point;
the ninth axis, the fifteenth axis and the first axis are parallel to each other.
6. A folding mechanism as claimed in any one of claims 1 to 4, wherein:
the first end part of the second supporting rod extends out of the extension section along the length direction of the second supporting rod;
the first end part of the armrest rod and the first sliding sleeve are hinged to a sixteenth hinge point, and the armrest and the first sliding sleeve can rotate around a sixteenth axis of the sixteenth hinge point;
a fourth sliding sleeve is slidably matched on the grab rail, the end part of the extension section and the fourth sliding sleeve are hinged at a seventeenth hinge point, and the extension section and the fourth sliding sleeve can rotate around a seventeenth axis passing through the seventeenth hinge point;
the sixteenth axis, the seventeenth axis and the first axis are parallel to each other.
7. A folding chair comprising two folding mechanisms according to any one of claims 1 to 6, characterized in that:
the two folding mechanisms are plane-symmetric about the first plane; the first axis is perpendicular to the first plane;
the folding chair comprises a first X-shaped folding frame and a second X-shaped folding frame;
the first X-shaped folding frame comprises two first transmission rods, the middle parts of the two first transmission rods are hinged to a seventh hinge point, the two first transmission rods can rotate around a seventh axis of the seventh hinge point, and the seventh axis is located on a first plane;
the first driving rod and the first connecting piece are hinged to a ninth hinge point, and can rotate around a ninth axis;
the second end part of the first supporting rod is hinged with a second connecting piece, the second end part of the first supporting rod and the second connecting piece are hinged with a tenth hinge point, the first supporting rod and the second connecting piece can rotate around a tenth axis of the tenth hinge point, and the tenth axis is perpendicular to the first plane;
the first end parts of the two first transmission rods are respectively hinged with the two first connecting pieces at two eleventh hinging points, two eleventh axes respectively pass through the two eleventh hinging points and are parallel to the seventh axis, and the first transmission rods and the first connecting pieces can rotate around tenth axes passing through the first transmission rods and the first connecting pieces;
the second end parts of the two first transmission rods are respectively hinged with two second connecting pieces at two twelfth hinge points, two twelfth axes respectively pass through the two twelfth hinge points and are parallel to the seventh axis, and the first transmission rods and the second connecting pieces can rotate around the twelfth axes passing through the first transmission rods and the second connecting pieces;
the second X-shaped folding frame comprises two second transmission rods, the middle parts of the two second transmission rods are hinged to an eighth hinge point, the two second transmission rods can rotate around an eighth axis of the eighth hinge point, and the eighth axis is located on a first plane;
a third connecting piece is hinged to the first driving rod, the third connecting piece and the first driving rod are hinged to the fourth hinge point, and the third connecting piece can rotate around the fourth axis;
the first end parts of the two second transmission rods are respectively hinged with the two first sliding sleeves at two thirteenth hinge points, two thirteenth axes respectively pass through the two thirteenth hinge points and are parallel to the eighth axis, and the second transmission rods and the first sliding sleeves can rotate around a thirteenth axis passing through the second transmission rods and the first sliding sleeves;
the second ends of the two second transmission rods are respectively hinged with the two third connecting pieces at two fourteenth hinging points, two fourteenth axes respectively pass through the two fourteenth hinging points and are parallel to the eighth axis, and the second transmission rods and the third connecting pieces can rotate around a fourteenth axis passing through the second transmission rods and the third connecting pieces.
8. A folding chair as claimed in claim 7, wherein:
the cloth cover is characterized by further comprising a cloth cover, wherein four sleeves are sewn on the cloth cover and are respectively sleeved on the two second driving rods and the first driving rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920481961.7U CN209883536U (en) | 2019-04-10 | 2019-04-10 | Folding chair and folding mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920481961.7U CN209883536U (en) | 2019-04-10 | 2019-04-10 | Folding chair and folding mechanism thereof |
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| Publication Number | Publication Date |
|---|---|
| CN209883536U true CN209883536U (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920481961.7U Withdrawn - After Issue CN209883536U (en) | 2019-04-10 | 2019-04-10 | Folding chair and folding mechanism thereof |
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| Country | Link |
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| CN (1) | CN209883536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109846240A (en) * | 2019-04-10 | 2019-06-07 | 陈礼斌 | A kind of folding seat and its fold mechanism |
-
2019
- 2019-04-10 CN CN201920481961.7U patent/CN209883536U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109846240A (en) * | 2019-04-10 | 2019-06-07 | 陈礼斌 | A kind of folding seat and its fold mechanism |
| CN109846240B (en) * | 2019-04-10 | 2024-09-10 | 常州侨裕旅游用品有限公司 | Folding chair and folding mechanism thereof |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210721 Address after: 213000 Zou Qu Zhen Yin Cun, Zhonglou District, Changzhou City, Jiangsu Province Patentee after: CHANGZHOU QIAOYU TOURIST PRODUCTS Co.,Ltd. Address before: 213147 No. 866, taicun Town, Buyi Town, Wujin District, Changzhou City, Jiangsu Province Patentee before: Chen Libin |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200103 Effective date of abandoning: 20240910 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200103 Effective date of abandoning: 20240910 |