Disclosure of Invention
The invention provides a chair, a frame component and an infant carrier with a handrail and a supporting rod which are interlocked and folded, the chair with the foldable armrest support rods, the frame component and the armrest support rods of the infant carrier can be folded along with the whole chair, and the folded chair has smaller whole volume, thereby reducing the transportation cost and being convenient for storage and placement.
The application provides a chair with a foldable armrest supporting rod in a linkage way, which comprises the armrest supporting rod, a backrest supporting rod, a chair supporting rod, an armrest fixing seat, a backrest fixing seat and a chair fixing seat, wherein the armrest supporting rod is connected with the armrest fixing seat, the backrest supporting rod is connected with the backrest fixing seat, the chair supporting rod is connected with the chair fixing seat, the armrest fixing seat, the backrest fixing seat and the chair fixing seat are coaxially pivoted, and the armrest fixing seat and the chair fixing seat are folded in a linkage way along with the backrest fixing seat.
The armrest fixing seat, the backrest fixing seat and the seat fixing seat are coaxially connected, and the armrest fixing seat and the seat fixing seat are folded along with the backrest fixing seat in a linkage way, so that the armrest fixing seat and the seat fixing seat can rotate to respectively drive the armrest supporting rod and the seat supporting rod to rotate towards the direction close to the backrest supporting rod, and finally the armrest supporting rod, the seat supporting rod and the backrest supporting rod are in a state close to parallel, and the armrest supporting rod does not incline or extend outwards. Therefore, the volume of the linkage folding frame after folding can be greatly reduced, on one hand, the transportation cost is reduced, on the other hand, the folding frame is convenient for a user to store and place, the occupied space is saved, and the use satisfaction degree of the user is improved.
In one embodiment, the chair with the foldable armrest supporting rod in linkage further comprises a first locking mechanism, the back fixing seat rotates to a first position relative to the armrest fixing seat, the first locking mechanism locks the armrest fixing seat and the chair fixing seat, the back fixing seat rotates to a second position relative to the armrest fixing seat, and the first locking mechanism unlocks the armrest fixing seat and the chair fixing seat.
In one embodiment, the first locking mechanism includes a first locking portion disposed on the armrest fixing base and a second locking portion disposed on the seat fixing base, when the back fixing base rotates to a first position relative to the armrest fixing base, the first locking portion is in locking engagement with the second locking portion, and when the back fixing base rotates to a second position relative to the armrest fixing base, the first locking portion is disengaged from the second locking portion.
In one embodiment, the first locking portion is a locking block disposed on the armrest fixing seat, and the second locking portion is a locking groove disposed on the seat fixing seat and matched with the locking block.
In one embodiment, the backrest fixing seat is provided with a first penetrating opening, a locking boss is formed on one side of the seat fixing seat facing the backrest fixing seat, the clamping groove is formed in the locking boss, the clamping block is arranged on one side of the armrest fixing seat facing the backrest fixing seat, and the locking boss penetrates through the first penetrating opening to enable the clamping block to be in locking fit with the clamping groove.
In one embodiment, the backrest fixing seat is provided with a guide rail groove, the distance between the guide rail groove and the notch of the clamping groove is different at different positions, the clamping block is provided with a clamping part and a guide pillar, the clamping part is inserted into the clamping groove, the guide pillar is inserted into the guide rail groove and moves along the guide rail groove, the backrest fixing seat rotates to the second position relative to the armrest fixing seat, the clamping block moves along the guide rail groove so that the clamping part is separated from the clamping groove, the armrest fixing seat rotates to the first position relative to the backrest fixing seat, and the clamping block moves along the guide rail groove so that the clamping part is inserted into the clamping groove.
In one embodiment, the first locking mechanism further includes a first elastic member, two ends of the first elastic member respectively abut against the armrest fixing seat and the clamping block, and the first elastic member makes the clamping block move towards the clamping groove constantly.
In one embodiment, the armrest fixing seat is provided with a radially arranged mounting groove, the clamping block is arranged in the mounting groove, the clamping part of the clamping block extends out of the notch of the mounting groove to be matched with the clamping groove, and two ends of the first elastic piece are respectively propped against the clamping block and the bottom of the mounting groove.
In one embodiment, the clamping block is provided with an installation table, the installation table comprises an abutting part and a protruding part which are connected with each other, the protruding part is partially sleeved with the first elastic piece, and one end, away from the bottom of the installation groove, of the first elastic piece abuts against the abutting part.
In one embodiment, the chair with the foldable armrest supporting rod in linkage further comprises a second locking mechanism, wherein the second locking mechanism locks the armrest fixing seat and the chair fixing seat, and the backrest fixing seat rotates to a second position relative to the armrest fixing seat, and the second locking mechanism is operated to enable the armrest fixing seat and the chair fixing seat to rotate relatively.
In one embodiment, the second locking mechanism includes a third locking portion provided on the armrest fixing base and a fourth locking portion provided on the seat fixing base, the third locking portion being operated to be locked or unlocked in cooperation with the fourth locking portion or the fourth locking portion being operated to be locked or unlocked in cooperation with the third locking portion.
In one embodiment, the third locking portion is a locking pin movably disposed on the armrest fixing seat, and the fourth locking portion is a locking groove disposed on the seat fixing seat and matched with the locking pin.
In one embodiment, the backrest fixing seat is provided with a first penetrating hole, a locking boss is formed on one side of the seat fixing seat facing the backrest fixing seat, the locking groove is formed on the locking boss, the locking pin is arranged on one side of the armrest fixing seat facing the backrest fixing seat, and the locking boss penetrates through the first penetrating hole to enable the locking pin to be in locking fit with the locking groove.
In one embodiment, the second locking mechanism further comprises a second elastic piece, two ends of the second elastic piece are respectively abutted against the handrail fixing seat and the locking pin, and the second elastic piece enables the locking pin to move towards the locking groove constantly.
In one embodiment, the handrail fixing seat is provided with a mounting channel which is radially penetrated, one end of the locking pin penetrates through the mounting channel to be matched with the locking groove, the inner wall of the mounting channel is provided with a limiting column, the locking pin is provided with a limiting hole which is radially arranged, the limiting column is inserted into the limiting hole, and two ends of the second elastic piece are respectively propped against the limiting column and the wall of one side, away from the locking boss, of the limiting hole.
In one embodiment, the second locking mechanism further comprises an operating member connected with the locking pin, and the operating member is operated to move the locking pin.
In one embodiment, the operating member is a webbing strap.
In one embodiment, the first locking mechanism includes a locking block disposed on the armrest fixing seat and a locking groove disposed on the seat fixing seat and matched with the locking block, and the locking groove are circumferentially disposed along the locking boss.
In one embodiment, the locking pin and the engagement block are disposed along the same radial direction of the locking boss and are located on both sides of the geometric center of the locking boss.
In one embodiment, the chair with the foldable armrest supporting rod in linkage further comprises a connecting fixing seat, a mounting shaft is arranged on the connecting fixing seat, and the seat fixing seat, the backrest fixing seat and the armrest fixing seat are sleeved on the mounting shaft to be coaxially pivoted.
In one embodiment, the chair with the foldable armrest supporting rod in linkage further comprises a third locking mechanism, wherein the third locking mechanism is in a locking state, so that the backrest fixing seat and the armrest fixing seat are relatively locked, and the third locking mechanism is in a unlocking state, so that the backrest fixing seat and the armrest fixing seat relatively rotate.
In one embodiment, the armrest support rod is detachably connected with the armrest fixing seat or fixedly connected with the armrest fixing seat through a pin, and/or the backrest support rod is detachably connected with the backrest fixing seat or fixedly connected with the backrest fixing seat through a pin, and/or the seat support rod is detachably connected with the seat fixing seat or fixedly connected with the seat fixing seat through a pin.
The application also provides a frame assembly, which comprises a frame and a seat arranged on the frame, wherein the seat is the seat with the armrest supporting rod in linkage and folding.
In one embodiment, the seat is removably attached to the frame.
In one embodiment, the frame further comprises a fourth locking mechanism, the frame comprises a rider and a front foot supporting rod, the fourth locking mechanism is in a locking state, the rider and the front foot supporting rod are locked relatively, the fourth locking mechanism is in a unlocking state, and the rider and the front foot supporting rod rotate relatively.
In one embodiment, the seat further comprises a linkage assembly, the fourth locking mechanism comprises a frame release locking piece, and the armrest fixing seat rotates to drive the linkage assembly to act on the frame release locking piece, so that the fourth locking mechanism is converted from a locking state to a release locking state.
In one embodiment, the frame further comprises a frame fixing seat, the frame lock release member is arranged on the frame fixing seat, the frame fixing seat is fixed on one surface of the connecting fixing seat opposite to the seat fixing seat, the linkage assembly comprises a pushing member and a driving member which are sleeved on the mounting shaft, the armrest fixing seat rotates to drive the driving member to move along the axial direction, so that the driving member pushes the pushing member, the pushing member pushes the frame lock release member, and the fourth locking mechanism is converted into a lock release state from a locking state.
In one embodiment, the driving member includes a driving body and a third elastic member, a first pushing inclined plane is disposed on a surface of the driving body facing the armrest fixing seat, the armrest fixing seat is disposed with a second pushing inclined plane matched with the first pushing inclined plane, two ends of the third elastic member respectively abut against a surface of the driving body facing away from the armrest fixing seat and the pushing member, a pushing protrusion is disposed on a surface of the pushing member facing away from the third elastic member, and the pushing protrusion penetrates through the connecting fixing seat and abuts against the frame release locking member.
In still another aspect, the present application provides an infant carrier, including the frame assembly described above.
Drawings
FIG. 1 is a schematic view of a frame assembly according to an embodiment of the present invention;
FIG. 2 is a schematic view of a seat structure in the frame assembly shown in FIG. 1, with the coupled folding frame in an unfolded state;
FIG. 3 is a side view of FIG. 2;
FIG. 4 is a schematic view of the seat shown in FIG. 3 during folding;
FIG. 5 is a schematic view of the seat shown in FIG. 3 in a collapsed state;
FIG. 6 is a cross-sectional view A-A of FIG. 2;
FIG. 7 is an enlarged view at B of FIG. 6;
FIG. 8 is a schematic view of the seat shown in FIG. 6 during folding;
FIG. 9 is an enlarged view at C of FIG. 8;
FIG. 10 is a schematic view of the seat shown in FIG. 6 in a collapsed state;
FIG. 11 is an enlarged view of FIG. 10 at D;
FIG. 12 is an exploded view of FIG. 2;
FIG. 13 is an enlarged view of FIG. 12 at E;
FIG. 14 is an exploded view of the other view of FIG. 2;
fig. 15 is an enlarged view at F of fig. 14;
FIG. 16 is an exploded view of the further view of FIG. 2;
fig. 17 is an enlarged view at G of fig. 16;
FIG. 18 is a schematic view of the structure of the engagement blocks in the seat shown in FIG. 2;
FIG. 19 is a schematic view of the engaging block shown in FIG. 18 in another view;
FIG. 20 is a schematic view of the structure of the back rest mount in the seat shown in FIG. 2;
FIG. 21 is a schematic view of the armrest mount in the seat shown in FIG. 2;
FIG. 22 is a schematic view of the armrest holder of FIG. 21 in another view;
Fig. 23 is a schematic structural view of a seat holder 400 in the seat shown in fig. 2;
Fig. 24 is a schematic structural view of a frame in the frame assembly shown in fig. 1.
Description of the reference numerals
10. The seat, 100, seat support assembly, 110, armrest support bar, 120, back support bar, 130, seat support bar, 170, armrest cross bar, 200, armrest mount, 210, first body portion, 211, mounting channel, 212, post, 213, mounting slot, 214, second push ramp, 220, first connection portion, 300, back mount, 310, second body portion, 311, first pass-through opening, 312, rail slot, 320, second connection portion, 400, seat bar mount, 410, third body portion, 411, locking boss, 412, second pass-through opening, 420, third connection portion, 500, connection mount, 510, fourth body portion, 520, mounting shaft, 620, first connection mechanism, 621, snap-in block, 621a, an engaging portion 621b, a guide post 621c, a mounting table 621d, an abutting portion 621e, a boss 622, an engaging groove 623, a first elastic member 610, a second locking mechanism 611, a locking pin 611a, a limiting hole 612, a locking groove 613, a second elastic member 614, an operating member 615, a penetrating hole 640, a fourth locking mechanism 641, a reclining lock piece 20, a frame 140, a rider 150, a front foot support bar 160, a rear foot support bar 630, a third locking mechanism 631, a frame fixing seat 632, a frame releasing lock piece 700, a linking assembly 710, a driving member 711, a driving body, a first pushing inclined surface 711, a third elastic member 720, a pushing piece 721, a pushing boss.
Detailed Description
As shown in fig. 1, an embodiment of the present application provides an infant carrier, such as a stroller, comprising a frame assembly including a seat 10 and a frame 20. The infant carrier, the frame assembly, the armrest support bar 110 and the seat support bar 130 of the seat 10 can be folded along with the back support bar 120, and the whole volume is smaller after folding, thereby reducing the transportation cost and being convenient to store and place.
Specifically, as shown in fig. 1, 2, 7, 13 and 24, the seat 10 is a seat 10 with a foldable armrest support bar, and includes a seat support assembly 100, an armrest fixing base 200, a backrest fixing base 300, a seat fixing base 400, a connection fixing base 500, a first locking mechanism 620, a second locking mechanism 610, a third locking mechanism 640 and a linkage assembly 700. The frame 20 includes a rider 140, a front foot support bar 150, a rear foot support bar 160, a fourth locking mechanism 630, and a frame mount 631.
Specifically, as shown in fig. 1, the seat support assembly 100 includes an armrest support bar 110, a back support bar 120, a seat support bar 130, and an armrest cross bar 170. The armrest cross bar 170 is disposed laterally forward of the seat assembly 100 for grasping by an infant, and the armrest support bars 110 are connected to both ends of the armrest cross bar 170. The back support bar 120 forms a back with a back main body (not shown in the drawings) coated outside the back support bar 120 for supporting the back of the infant, and the seat support bar 130 forms a seat for supporting the buttocks of the infant with a seat main body (not shown in the drawings) coated outside the seat support bar 130.
As shown in fig. 11 to 14, the armrest fixing base 200, the backrest fixing base 300, the seat fixing base 400, and the connection fixing base 500 are coaxially pivoted.
The armrest fixing base 200 includes a first body portion 210 and a first connection portion 220 that are connected to each other, the first body portion 210 has a substantially disk shape, the first connection portion 220 has a substantially sleeve shape, and the first connection portion 220 can be used to connect and cooperate with the armrest supporting rod 110.
The backrest fixing base 300 includes a second body portion 310 and a second connection portion 320 that are connected to each other, the second body portion 310 is substantially annular, i.e. a circular first through hole 311 is formed in the middle of the second body portion 310, the second connection portion 320 is substantially sleeve-shaped, and the second connection portion 320 is configured to be connected to and matched with the backrest support 120.
The seat fixing base 400 includes a third body portion 410 and a third connecting portion 420 that are connected to each other, the third body portion 410 is substantially in a truncated cone shape, a locking boss 411 is formed on a side of the third body portion 410 facing the back fixing base 300, a second substantially circular penetrating opening 412 is formed in a middle portion of the locking boss 411, and the second penetrating opening 412 is disposed opposite to the first penetrating opening 311. The third connecting portion 420 is substantially sleeve-shaped and is configured to be sleeved and fixed with the seat support bar 130.
The connection fixing base 500 is used for fixing the seat 10 on the frame 20, the connection fixing base 500 includes a fourth main body portion 510 having a substantially disc shape and a mounting shaft 520 fixed in the middle of the fourth main body portion 510, the seat fixing base 400, the backrest fixing base 300 and the armrest fixing base 200 are sequentially sleeved on the mounting shaft 520 to realize coaxial pivoting. The first connecting portion 220, the second connecting portion 320 and the third connecting portion 420 may be respectively sleeved and fixed on the armrest supporting rod 110, the backrest supporting rod 120 and the seat supporting rod 130, or respectively connected with the armrest supporting rod 110, the backrest supporting rod 120 and the seat supporting rod 130 by other manners, for example, fixedly connected by pins, and may also be respectively integrally formed with the armrest supporting rod 110, the backrest supporting rod 120 and the seat supporting rod 130.
As shown in fig. 6 to 11, when the back rest fixing base 300 rotates to the first position (as shown in fig. 6 and 7) relative to the armrest fixing base 200, the first locking mechanism 620 locks the armrest fixing base 200 and the seat fixing base 400. When the backrest fixing base 300 rotates to the second position (as shown in fig. 8 and 9) relative to the armrest fixing base 200, the first locking mechanism 620 releases the locking of the armrest fixing base 200 and the seat fixing base 400, and the first position is different from the second position.
In this embodiment, the second position may be a position where the backrest fixing base 300 rotates relative to the armrest fixing base 200 to be approximately parallel or coincident with the backrest support 120 and the armrest support 110, as shown in fig. 8, and the first position is other than the second position, as shown in fig. 6. Thus, when the seat 10 needs to be folded, the backrest fixing base 300 can be rotated from the first position to the second position relative to the armrest fixing base 200, i.e. the backrest support rod 120 and the armrest support rod 110 are substantially parallel or overlapped, and at this time, the first locking mechanism 620 releases the locking of the armrest fixing base 200 and the seat fixing base 400, so that the armrest support rod 110, the backrest support rod 120 and the seat support rod 130 can be further operated to be folded to the substantially parallel state, thereby saving the storage space of the folded seat 10.
Specifically, as shown in fig. 6 to 11, the first locking mechanism 620 includes a first locking portion provided on the armrest fixing base 200 and a second locking portion provided on the seat fixing base 400, and the first locking portion is locked to be engaged with the second locking portion when the back fixing base 300 is rotated to the first position relative to the armrest fixing base 200, and the first locking portion is unlocked to be engaged with the second locking portion when the back fixing base 300 is rotated to the second position relative to the armrest fixing base 200. In this embodiment, the first locking portion is an engaging block 621 disposed on the armrest fixing base 200, and the second locking portion is an engaging groove 622 disposed on the seat fixing base 400 and capable of being engaged with the engaging block 621. Of course, the positions of the engaging block 621 and the engaging groove 622 may be interchanged, or the first locking mechanism 620 may take other forms, such as an engaging hook and an engaging hole that cooperate with each other, which is not limited thereto.
Alternatively, as shown in fig. 13, 15 and 23, the engagement groove 622 is provided on the locking boss 411. The engaging block 621 is disposed on a side of the armrest fixing base 200 facing the backrest fixing base 300, and a radially disposed mounting groove 213 (as shown in fig. 11 and 22) is disposed on the first body portion 210 of the armrest fixing base 200, the engaging block 621 is disposed in the mounting groove 213, and the engaging block 621 extends from a notch of the mounting groove 213 to be engaged with the engaging groove 622. The locking boss 411 passes through the through hole 311 so that the engagement block 621 can be locked to be engaged with the engagement groove 622.
Further, as shown in fig. 9, 13, 15 and 20, the second body portion 310 of the backrest fixing base 300 has a guide rail groove 312, and the guide rail groove 312 is different from the notch of the engagement groove 622 at different positions, i.e. the extending path of the guide rail groove 312 is gradual. Referring to fig. 18, the engaging block 621 has an engaging portion 621a and a guide post 621b, wherein the engaging portion 621a can be inserted into the engaging groove 622, and the guide post 621b is inserted into the guide rail groove 312 and moves along the guide rail groove 312. When the backrest fixing base 300 rotates to the second position relative to the armrest fixing base 200, the guide rail groove 312 is farthest from the center of the second body portion 310, i.e. the guide rail groove 312 is farthest from the locking boss 411, and the engaging block 621 moves along the guide rail groove 312 until the engaging portion 621a is disengaged from the engaging groove 622. When the backrest fixing base 300 rotates to the first position relative to the armrest fixing base 200, the engaging block 621 moves along the rail groove 312 to the engaging portion 621a to be inserted into the engaging groove 622.
Thus, on the one hand, when the backrest fixing base 300 rotates to the first position relative to the armrest fixing base 200, the first locking mechanism 620 locks the armrest fixing base 200 and the seat fixing base 400, and when the backrest fixing base 300 rotates to the second position relative to the armrest fixing base 200, the first locking mechanism 620 releases the locking of the armrest fixing base 200 and the seat fixing base 400, on the other hand, during the unfolding process of the seat 10, due to the cooperation of the guide post 621b on the clamping block 621 and the guide rail groove 312, the armrest fixing base 200 and the backrest fixing base 300 form linkage during the pivoting, so that the armrest supporting rod 110 can be unfolded along with the backrest supporting rod 120 and the whole frame assembly, and automatically returns to the initial position, thereby realizing the automatic return of the armrest supporting rod 110 during the unfolding process.
Further, as shown in fig. 7, 9 and 11, the first locking mechanism 620 further includes a first elastic element 623, two ends of the first elastic element 623 respectively abut against the armrest fixing seat 200 and the engaging block 621, specifically, two ends of the first elastic element 623 respectively abut against the engaging block 621 and the groove bottom of the mounting groove 213, and the first elastic element 623 makes the engaging block 621 move toward the engaging groove 622 constantly. Thus, after the state transition of the seat is completed, for example, the state transition from the folded state to the unfolded state, the backrest fixing base 300 rotates to the first position relative to the armrest fixing base 200, and the locking block 621 can be automatically locked into the locking groove 622 under the action of the first elastic element 623, so as to lock the armrest fixing base 200 and the seat fixing base 400, thereby improving the safety performance.
Specifically, as shown in fig. 7, 18 and 19, the first elastic member 623 may be mounted by providing a mounting table 621c on the engaging block 621, where the mounting table 621c includes an abutting portion 621d and a protruding portion 621e that are connected to each other, the first elastic member 623 is partially sleeved outside the protruding portion 621e, and an end of the first elastic member 623 away from the bottom of the mounting groove 213 abuts against the abutting portion 621 d. Of course, other means of mounting the first resilient member 623 are also possible. The first elastic member 623 may be a spring, an elastic rubber column, or the like, which is not limited thereto.
Further, as shown in fig. 3 to 9, the second locking mechanism 610 can achieve the relative locking of the armrest fixing base 200 and the seat fixing base 400, and when the backrest fixing base 300 rotates to the second position relative to the armrest fixing base 200, the second locking mechanism 610 can be operated so that the armrest fixing base 200 rotates relative to the seat fixing base 400. Thus, when the backrest fixing base 300 rotates to the second position relative to the armrest fixing base 200, the second locking mechanism 610 is operable to unlock between the armrest fixing base 200 and the seat fixing base 400, and the armrest fixing base 200 rotates relative to the seat fixing base 400, and finally the armrest supporting rod 110, the seat supporting rod 130 and the backrest supporting rod 120 are in a state close to parallel, and the armrest supporting rod 110 does not incline or extend outwards, so that the overall volume is smaller after folding, the transportation cost is reduced, and the storage and the placement are facilitated. Because the second locking mechanism 610 and the first locking mechanism 620 are skillfully matched, a double locking safety effect is provided for the infant carrier, if the second locking mechanism 610 is operated alone or the armrest fixing seat 200 is rotated to the second position relative to the backrest fixing seat 300, the first locking mechanism 620 is in a unlocking state, unlocking of the linkage folding frame cannot be realized, and only if the second locking mechanism 610 and the first locking mechanism 620 are simultaneously unlocked, the armrest supporting rod 110, the backrest supporting rod 120, the seat supporting rod 130 and the like of the linkage folding frame can be rotated relatively. This prevents the seat 10 from being accidentally folded when the second locking mechanism 610 is accidentally touched or rotated to be substantially parallel or coincident with the armrest support bar 110, thereby greatly improving the safety of the infant carrier.
Specifically, as shown in fig. 7 and 9, the second locking mechanism 610 includes a third locking portion provided on the armrest fixing base 200 and a fourth locking portion provided on the seat fixing base 400, the third locking portion being operable to be locked or unlocked in cooperation with the fourth locking portion, or the fourth locking portion being operable to be locked or unlocked in cooperation with the third locking portion.
Alternatively, as shown in fig. 7 and 9, the third locking part is a locking pin 611 movably disposed on the armrest fixing base 200, and the fourth locking part is a locking groove 612 disposed on the seat fixing base 400 and capable of being engaged with the locking pin 611. Thus, the locking of the armrest fixing base 200 and the seat fixing base 400 can be achieved through the cooperation of the locking pin 611 and the locking groove 612, and the second locking mechanism 610 can be unlocked by operating the locking pin 611 so that the armrest fixing base 200 and the seat fixing base 400 can rotate relatively, that is, the armrest supporting rod 110 and the seat supporting rod 130 can rotate relatively. Of course, the positions of the locking pin 611 and the locking groove 612 may be interchanged, or the third locking part and the fourth locking part may be other forms, such as a hook and a hole that can be engaged with each other, etc., without limitation.
Further, as shown in fig. 7, 9 and 13 to 15, a locking groove 612 is provided on the locking boss 411. Thus, the armrest fixing base 200 and the backrest fixing base 300 can be conveniently fixed at different relative positions with respect to each other. The locking pin 611 is disposed on a side of the armrest fixing seat 200 facing the backrest fixing seat 300, and specifically, a mounting channel 211 radially penetrating the first body 210 of the armrest fixing seat 200 may be disposed, one end of the locking pin 611 may pass through the mounting channel 211 to be matched with the locking slot 612, and the other end of the locking pin 611 may protrude out of the mounting channel 211 so as to be convenient to be operated. The locking boss 411 passes through the first penetration hole 311 so that the locked pin 611 can be locked to be engaged with the locking groove 612. Referring to fig. 11 and 22, alternatively, the mounting groove 213 and the mounting channel 211 are disposed along the same radial direction of the armrest fixing base 200, that is, the engaging block 621 and the locking pin 611 are disposed along the same radial direction of the armrest fixing base 200, so that the engaging block 621 and the locking pin 611 can lock the seat fixing base 400 from two opposite sides of the armrest fixing base 200.
Further, as shown in fig. 16 and 17, the second locking mechanism 610 further includes a second elastic member 613, two ends of the second elastic member 613 respectively abut against the armrest fixing base 200 and the locking pin 611, and the second elastic member 613 makes the locking pin 611 constantly move in the direction of the locking groove 612. Thus, after the state transition of the seat 10 is completed, for example, the state transition from the folded state to the unfolded state, the locking pin 611 can be automatically locked into the locking groove 612 under the action of the second elastic member 613 to lock the armrest fixing seat 200 and the seat fixing seat 400, so that further manual operation of the locking pin 611 is not required, time and labor are saved, and safety performance can be improved.
Alternatively, as shown in fig. 7, 16 and 17, the second elastic member 613 may be disposed in such a manner that a limiting post 212 is disposed on an inner wall of the mounting channel 211, a radially disposed limiting hole 611a is disposed on the locking pin 611, the limiting post 212 is inserted into the limiting hole 611a, and two ends of the second elastic member 613 respectively abut against the limiting post 212 and a hole wall of a side of the limiting hole 611a away from the locking boss 411. Thus, the second elastic member 613 can function as an auxiliary for resetting the locking pin 611. Of course, the second elastic member 613 may be provided in other manners. The second elastic member 613 is a spring, an elastic rubber column, or the like, which is not limited.
Further, as shown in fig. 3 to 5, the second locking mechanism 610 further includes an operating member 614 connected to the locking pin 611, and the operating member 614 can be operated to move the locking pin 611. In this way, the user can conveniently operate the locking pin 611, and the use experience of the user is improved. Alternatively, the operating member 614 is a webbing, and employing webbing as the operating member 614 occupies little storage space and also adds little to the overall weight of the infant carrier. Of course, the operating member 614 may be a tab or the like, which is not limited thereto. The end of the locking pin 611 protruding from the mounting channel 211 may be provided with a through hole 615, and the webbing may be wound around and fixed to the locking pin 611 through the through hole 615, however, the webbing may be fixed to the fixing pin in other manners, which is not limited.
Further, as shown in fig. 24, the fourth locking mechanism 630 is in a locked state, the rider 140 and the front foot support bar 150 are relatively locked, and the fourth locking mechanism 630 is in a released state, the rider 140 and the front foot support bar 150 are relatively rotated. In this manner, the fourth locking mechanism 630 may be used to control locking and unlocking of the rider 140 and the forefoot support bar 150.
Specifically, as shown in fig. 13, 15 and 24, the fourth locking mechanism 630 includes a frame fixing seat 631 and a frame releasing locking member 632 provided on the frame fixing seat 631, the frame fixing seat 631 is fixed on a surface of the connecting fixing seat 500 facing away from the seat fixing seat 400, and rotation of the armrest fixing seat 200 can drive the linkage assembly 700 to act on the frame releasing locking member 632, so that the fourth locking mechanism 630 is converted from a locking state to a releasing locking state. In this way, during the process of rotating and folding or rotating and unfolding the armrest support rod 110, the linking assembly 700 can drive the frame release lock 632 to release the lock, so as to release the lock between the rider 140 and the front foot support rod 150 and drive the rider 140 and the front foot support rod 150 to rotate and fold or rotate and unfold together.
Specifically, as shown in fig. 13, 15 and 24, the linkage assembly 700 includes a pushing member 720 and a driving member 710 sleeved on the mounting shaft 520, and the rotation of the armrest fixing seat 200 can drive the driving member 710 to move along the axial direction, so that the driving member 710 pushes the pushing member 720, so that the pushing member 720 pushes the frame release member 632, and the fourth locking mechanism 630 is converted from the locking state to the release state.
The driving member 710 may take various forms, for example, the driving member 710 may include a driving body 711 and a third elastic member 712, where a first pushing inclined surface 711a is disposed on a surface of the driving body 711 facing the armrest fixing seat 200, a second pushing inclined surface 214 capable of matching with the first pushing inclined surface 711a is disposed on the first main body 210 of the armrest fixing seat 200, two ends of the third elastic member 712 respectively abut against a surface of the driving body 711 facing away from the armrest fixing seat 200 and the pushing member 720, and a pushing protrusion 721 (as shown in fig. 15) is disposed on a surface of the pushing member 720 facing away from the third elastic member 712, and the pushing protrusion 721 can penetrate through the connection fixing seat 500 to abut against the frame release locking member 632. Thus, when the armrest fixing base 200 is rotated, the second pushing inclined plane 214 pushes the first pushing inclined plane 711a, so that the driving body 711 axially pushes the third elastic member 712, and the third elastic member 712 also axially pushes the pushing member 720, and the pushing member 720 then acts on the frame release locking member 632 through the pushing protrusion 721, and the linkage folding function of the armrest fixing base 200, the rider 140 and the front leg support bar 150 is realized through the interaction of the rings.
Further, as shown in fig. 1 and 2, the third locking mechanism 640 includes a back release lock 641 at the top of the back support bar 120, and by pressing the back release lock 641, angular adjustment of the back support bar 120 with respect to the armrest support bar 110 can be achieved. Specifically, the third locking mechanism 640 is in a locked state such that the back rest fixing seat 300 is relatively locked with the armrest fixing seat 200, and the third locking mechanism 640 is in a released state such that the back rest fixing seat 300 is relatively rotated with the armrest fixing seat 200. By pressing the back lock release 641, the third lock mechanism 640 can be switched from the locked state to the unlocked state.
The following is a specific procedure for converting the unfolding state of the chair 10 which is folded by the linkage of the armrest supporting rod into the folding state:
First, the back release locking piece 641 is pressed, so that the third locking mechanism 640 releases the lock, the back fixing seat 300 can rotate to the second position relative to the armrest fixing seat 200, the back support rod 120 is overlapped with or parallel to the armrest support rod 110, and simultaneously the first locking mechanism 620 releases the lock, and the locking block 621 is separated from the locking groove 622. At this time, the webbing is pulled to disengage the locking pin 611 from the locking groove 612, and the second locking mechanism 610 releases the lock, so that the armrest fixing seat 200 and the backrest fixing seat 300 can rotate relatively until the armrest supporting rod 110 and the seat supporting rod 130 are respectively driven to rotate in a direction approaching to the backrest supporting rod 120, and finally the armrest supporting rod 110, the seat supporting rod 130 and the backrest supporting rod 120 are in a nearly parallel state, and the armrest supporting rod 110 does not incline or protrude outwards. Meanwhile, when the armrest fixing base 200 rotates, the linkage assembly 700 acts on the frame release lock 632 of the fourth locking mechanism 630, so as to release the lock between the rider 140 and the front leg support bar 150, and drive the rider 140 and the front leg support bar 150 to rotate and fold or rotate and unfold together. Thus, the folding of the whole frame assembly can be realized.
The chair 10, the frame component and the infant carrier which are interlocked and folded by the armrest support rod have at least the following technical effects:
the armrest fixing seat 200, the backrest fixing seat 300 and the seat fixing seat 400 are coaxially connected, and the armrest fixing seat 200 and the seat fixing seat 400 are folded along with the backrest fixing seat 300, so that the armrest fixing seat 200 and the seat fixing seat 400 can rotate to respectively drive the armrest supporting rod 110 and the seat supporting rod 130 to rotate towards the direction close to the backrest supporting rod 120, and finally the armrest supporting rod 110, the seat supporting rod 130 and the backrest supporting rod 120 are in a state close to parallel, and the armrest supporting rod 110 does not incline or extend outwards. Therefore, the volume of the folded seat 10 can be greatly reduced, on one hand, the transportation cost is reduced, on the other hand, the storage and placement of the seat are also convenient for users, the occupied space is saved, and the use satisfaction of the users is improved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.