Seat with armrest supporting rods folded in linkage mode, frame assembly and baby carrier

Abstract

The invention provides a seat with armrest supporting rods folded in a linkage mode, a frame assembly and a baby carrier, the seat with the armrest supporting rods folded in the linkage mode comprises the armrest supporting rods, a backrest supporting rod, a seat supporting rod, an armrest fixing seat, a backrest fixing seat and a seat fixing seat, and the armrest supporting rods are connected with the armrest fixing seat; the backrest supporting rod is connected with the backrest fixing seat, the seat supporting rod is connected with the seat fixing seat, the armrest fixing seat, the backrest fixing seat and the seat fixing seat are coaxially pivoted, and the armrest fixing seat and the seat fixing seat are folded along with linkage of the backrest fixing seat. According to the seat with the armrest supporting rods folded in the linkage mode, the frame assembly and the baby carrier, the armrest supporting rods can be folded along with the whole seat, the overall size is small after the armrest supporting rods are folded, and therefore the transportation cost is reduced, and the baby carrier is convenient to store and place.

Description

Technical Field

[0001] The present invention relates to the field of baby carriers, and in particular to a seat, a frame assembly and a baby carrier with a linkage folding arm support rod. Background Art

[0002] At present, baby carriers on the market, such as baby strollers, etc., generally have their arm support rods arranged on the seat rods and inclined upward. In this way, when folding the baby stroller, the arm support rods cannot be folded and still remain in a state of protruding obliquely outward. Therefore, it will affect the overall volume of the folded baby stroller, increasing the transportation cost on the one hand and being unfavorable for users to store and place on the other hand. Summary of the Invention

[0003] The present invention provides a seat, a frame assembly and a baby carrier with a linkage folding arm support rod. The arm support rods of the seat, the frame assembly and the baby carrier with a linkage folding arm support rod can be folded along with the overall seat, and the overall volume after folding is small, thereby reducing the transportation cost and being convenient for storage and placement.

[0004] One aspect of the present application provides a seat with a linkage folding arm support rod, including an arm support rod, a backrest support rod, a seat support rod, an arm fixing seat, a backrest fixing seat and a seat fixing seat. The arm support rod is connected to the arm fixing seat, the backrest support rod is connected to the backrest fixing seat, the seat support rod is connected to the seat fixing seat. The arm fixing seat, the backrest fixing seat and the seat fixing seat are coaxially pivotally connected, and the arm fixing seat and the seat fixing seat are folded in linkage with the backrest fixing seat.

[0005] The arm fixing seat, the backrest fixing seat and the seat fixing seat are coaxially connected, and the arm fixing seat and the seat fixing seat are folded in linkage with the backrest fixing seat. In this way, the arm fixing seat and the seat fixing seat can be rotated to drive the arm support rod and the seat support rod to rotate towards the direction close to the backrest support rod respectively, and finally the arm support rod, the seat support rod and the backrest support rod are in a state close to parallel, and there is no situation where the arm support rod is inclined or protrudes outward. In this way, the volume of the folded linkage folding frame can be greatly reduced, reducing the transportation cost on the one hand and being convenient for users to store and place and saving the occupied space on the other hand, improving the user's satisfaction.

[0006] In one embodiment, the seat with a linkage folding arm support rod further includes a first locking mechanism. When the backrest fixing seat rotates relative to the arm fixing seat to a first position, the first locking mechanism locks the arm fixing seat and the seat fixing seat; when the backrest fixing seat rotates relative to the arm fixing seat to a second position, the first locking mechanism releases the locking of the arm fixing seat and the seat fixing seat.

[0007] 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 backrest fixing base rotates relative to the armrest fixing base to a first position, the first locking portion and the second locking portion are locked and engaged. When the backrest fixing base rotates relative to the armrest fixing base to a second position, the first locking portion and the second locking portion are disengaged.

[0008] In one embodiment, the first locking portion is a clamping block disposed on the armrest fixing base, and the second locking portion is a clamping groove disposed on the seat fixing base and adapted to cooperate with the clamping block.

[0009] In one embodiment, the backrest fixing base has a first through hole, a locking boss is formed on a side of the seat fixing base facing the backrest fixing base, the clamping groove is disposed on the locking boss, the clamping block is disposed on a side of the armrest fixing base facing the backrest fixing base, and the locking boss passes through the first through hole so that the clamping block and the clamping groove are locked and engaged.

[0010] In one embodiment, the backrest fixing base has a guide rail groove, the distances between the guide rail groove and the notch of the clamping groove at different positions are different. The clamping block has a clamping portion and a guide post. The clamping portion is inserted into the clamping groove, the guide post is inserted into the guide rail groove and moves along the guide rail groove. When the backrest fixing base rotates relative to the armrest fixing base to the second position, the clamping block moves along the guide rail groove to disengage the clamping portion from the clamping groove; when the armrest fixing base rotates relative to the backrest fixing base to the first position, the clamping block moves along the guide rail groove to insert the clamping portion into the clamping groove.

[0011] In one embodiment, the first locking mechanism further includes a first elastic member, and two ends of the first elastic member respectively abut against the armrest fixing base and the clamping block. The first elastic member causes the clamping block to constantly move towards the direction of the clamping groove.

[0012] In one embodiment, a radially disposed mounting groove is provided on the armrest fixing base, the clamping block is disposed in the mounting groove, and the clamping portion of the clamping block extends out of the notch of the mounting groove to cooperate with the clamping groove. Two ends of the first elastic member respectively abut against the clamping block and the bottom of the mounting groove.

[0013] In one embodiment, a mounting platform is provided on the clamping block. The mounting platform includes an abutting portion and a protruding portion that are connected to each other. The first elastic member is partially sleeved outside the protruding portion, and one end of the first elastic member away from the bottom of the mounting groove abuts against the abutting portion.

[0014] In one embodiment, the seat with the armrest support rod being linked and folded further includes a second locking mechanism, and the second locking mechanism locks the armrest fixing seat and the seat fixing seat; when the backrest fixing seat rotates relative to the armrest fixing seat to a second position, the second locking mechanism is operated to enable relative rotation between the armrest fixing seat and the seat fixing seat.

[0015] In one embodiment, the second locking mechanism includes a third locking portion disposed on the armrest fixing seat and a fourth locking portion disposed on the seat fixing seat, and the third locking portion is operated to cooperate with the fourth locking portion to lock or unlock, or the fourth locking portion is operated to cooperate with the third locking portion to lock or unlock.

[0016] 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 cooperating with the locking pin.

[0017] In one embodiment, the backrest fixing seat has a first through hole, a locking boss is formed on one side of the seat fixing seat facing the backrest fixing seat, the locking groove is disposed on the locking boss, the locking pin is disposed on one side of the armrest fixing seat facing the backrest fixing seat, and the locking boss passes through the first through hole so that the locking pin is in locking cooperation with the locking groove.

[0018] In one embodiment, the second locking mechanism further includes a second elastic member, and two ends of the second elastic member respectively abut against the armrest fixing seat and the locking pin, and the second elastic member enables the locking pin to constantly move in the direction of the locking groove.

[0019] In one embodiment, an installation channel penetrating radially is provided on the armrest fixing seat, one end of the locking pin passes through the installation channel to cooperate with the locking groove, a limiting post is provided on the inner wall of the installation channel, a limiting hole is provided on the locking pin along the radial direction, the limiting post is inserted into the limiting hole, and two ends of the second elastic member respectively abut against the limiting post and the hole wall on the side of the limiting hole away from the locking boss.

[0020] In one embodiment, the second locking mechanism further includes an operating member connected to the locking pin, and the operating member is operated to drive the locking pin to move.

[0021] In one embodiment, the operating member is a webbing.

[0022] In one embodiment, the first locking mechanism includes a clamping block disposed on the armrest fixing base and a clamping groove disposed on the seat fixing base and cooperating with the clamping block, and the locking groove and the clamping groove are circumferentially arranged along the locking boss.

[0023] In one embodiment, the locking pin and the clamping block are arranged along the same radial direction of the locking boss and are located on both sides of the geometric center of the locking boss.

[0024] In one embodiment, the seat with the armrest support rod being interlocked and folded further includes a connecting fixing base, an installation shaft is provided on the connecting fixing base, and the seat fixing base, the backrest fixing base and the armrest fixing base are sleeved on the installation shaft for coaxial pivoting connection.

[0025] In one embodiment, the seat with the armrest support rod being interlocked and folded further includes a third locking mechanism. When the third locking mechanism is in the locked state, the backrest fixing base and the armrest fixing base are relatively locked; when the third locking mechanism is in the unlocked state, the backrest fixing base and the armrest fixing base can rotate relative to each other.

[0026] In one embodiment, the armrest support rod is detachably connected to the armrest fixing base or fixedly connected by a pin; and / or the backrest support rod is detachably connected to the backrest fixing base or fixedly connected by a pin; and / or the seat support rod is detachably connected to the seat fixing base or fixedly connected by a pin.

[0027] Another aspect of the present application provides a frame assembly, including a frame and a seat disposed on the frame, and the seat is the seat with the armrest support rod being interlocked and folded as described above.

[0028] In one embodiment, the seat is detachably connected to the frame.

[0029] In one embodiment, the frame further includes a fourth locking mechanism. The frame includes a rider and a front foot support rod. When the fourth locking mechanism is in the locked state, the rider and the front foot support rod are relatively locked; when the fourth locking mechanism is in the unlocked state, the rider and the front foot support rod can rotate relative to each other.

[0030] In one embodiment, the seat further includes an interlocking component, and the fourth locking mechanism includes a frame unlocking member. The armrest fixing base rotates to drive the interlocking component to act on the frame unlocking member, so that the fourth locking mechanism is converted from the locked state to the unlocked state.

[0031] In one embodiment, the vehicle frame further includes a vehicle frame fixing seat, the vehicle frame unlocking member is disposed on the vehicle frame fixing seat, the vehicle frame fixing seat is fixed to a surface of the connection fixing seat facing away from the seat fixing seat, the linkage assembly includes a pushing member and a driving member sleeved on the mounting shaft, the armrest fixing seat rotates to drive the driving member to move in the axial direction, so that the driving member pushes against the pushing member, so that the pushing member pushes against the vehicle frame unlocking member, so that the fourth locking mechanism is converted from a locked state to an unlocked state.

[0032] In one embodiment, the driving member includes a driving body and a third elastic member. A first pushing inclined surface is provided on a surface of the driving body facing the armrest fixing seat. The armrest fixing seat is provided with a second pushing inclined surface matching the first pushing inclined surface. 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 provided on a surface of the pushing member facing away from the third elastic member. The pushing protrusion passes through the connection fixing seat and abuts against the vehicle frame unlocking member.

[0033] On another aspect, the present application further provides an infant carrier, including the above-mentioned vehicle frame assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic structural diagram of the vehicle frame assembly according to an embodiment of the present invention;

[0035] Figure 2 is Figure 1 a schematic structural diagram of the seat in the vehicle frame assembly shown in FIG., at this time the linkage folding vehicle frame is in an unfolded state;

[0036] Figure 3 is Figure 2 a side view of FIG.

[0037] Figure 4 is Figure 3 a schematic structural diagram of the seat shown in FIG. during the folding process;

[0038] Figure 5 is Figure 3 a schematic structural diagram of the seat shown in FIG. in a folded state;

[0039] Figure 6 is Figure 2 an A-A cross-sectional view of FIG.

[0040] Figure 7 is Figure 6 an enlarged view of B in FIG.

[0041] Figure 8 is Figure 6 a schematic structural diagram of the seat shown in FIG. during the folding process;

[0042] Figure 9 The enlarged view of part C of Figure 8 ;

[0043] Figure 10 The structural schematic diagram of the seat shown in Figure 6 in the folded state;

[0044] Figure 11 The enlarged view of part D of Figure 10 ;

[0045] Figure 12 The exploded view of Figure 2 ;

[0046] Figure 13 The enlarged view of part E of Figure 12 ;

[0047] Figure 14 The exploded view of Figure 2 from another perspective;

[0048] Figure 15 The enlarged view of part F of Figure 14 ;

[0049] Figure 16 The exploded view of Figure 2 from another perspective;

[0050] Figure 17 The enlarged view of part G of Figure 16 ;

[0051] Figure 18 The structural schematic diagram of the engaging block in the seat shown in Figure 2 ;

[0052] Figure 19 The structural schematic diagram of the engaging block shown in Figure 18 from another perspective;

[0053] Figure 20 The structural schematic diagram of the backrest fixing seat in the seat shown in Figure 2 ;

[0054] Figure 21 The structural schematic diagram of the armrest fixing seat in the seat shown in Figure 2 ;

[0055] Figure 22 The structural schematic diagram of the armrest fixing seat shown in Figure 21 from another perspective;

[0056] Figure 23 The structural schematic diagram of the seat fixing seat 400 in the seat shown in Figure 2 ;

[0057] Figure 24 for Figure 1 A schematic structural diagram of the frame in the frame assembly shown in FIG.

[0058] Description of Reference Numerals

[0059] 10. Seat, 100. Seat support assembly, 110. Armrest support rod, 120. Backrest support rod, 130. Seat support rod, 170. Armrest cross bar, 200. Armrest fixing seat, 210. First main body, 211. Installation channel, 212. Limiting column, 213. Installation groove, 214. Second push inclined surface, 220. First connecting part, 300. Backrest fixing seat, 310. Second main body, 311. First penetration opening, 312. Guide rail groove, 320. Second connecting part, 400. Seat rod fixing seat, 410. Third main body, 411. Locking boss, 412. Second penetration opening, 420. Third connecting part, 500. Connecting fixing seat, 510. Fourth main body, 520. Installation shaft, 620. First locking mechanism, 621. Engaging block, 621a , engaging portion, 621b, guide column, 621c, mounting platform, 621d, abutting portion, 621e, protruding portion, 622, engaging groove, 623, first elastic member, 610, second locking mechanism, 611, locking pin, 611a, limiting hole, 612, locking groove, 613, second elastic member, 614, operating member, 615, penetration hole, 640, fourth locking mechanism, 641, back release member, 20, frame, 140, rider, 150, front foot support rod, 160, rear foot support rod, 630, third locking mechanism, 631, frame fixing seat, 632, frame release member, 700, linkage assembly, 710, driving member, 711, driving body, 711a, first abutting inclined surface, 712, third elastic member, 720, pushing member, 721, pushing protrusion. DETAILED DESCRIPTION

[0060] like Figure 1 As shown, an embodiment of the present application provides a baby carrier, such as a baby stroller, etc. The baby carrier includes a frame assembly, and the frame assembly includes a seat 10 and a frame 20. The baby carrier, the frame assembly, and the armrest support rod 110 and the seat support rod 130 of the seat 10 can be folded together with the backrest support rod 120. After folding, the overall volume is small, thereby reducing transportation costs and facilitating storage and placement.

[0061] Specifically, Figure 1 , Figure 2 , Figure 7 , Figure 13 and Figure 24As shown, the seat 10 is a seat 10 with the armrest support rod interlocked and folded, including a seat support assembly 100, an armrest fixing seat 200, a backrest fixing seat 300, a seat fixing seat 400, a connection fixing seat 500, a first locking mechanism 620, a second locking mechanism 610, a third locking mechanism 640 and an interlocking assembly 700. The frame 20 includes a rider 140, a front foot support rod 150, a rear foot support rod 160, a fourth locking mechanism 630 and a frame fixing seat 631.

[0062] Specifically, as Figure 1 shown, the seat support assembly 100 includes an armrest support rod 110, a backrest support rod 120, a seat support rod 130 and an armrest crossbar 170. The armrest crossbar 170 is horizontally arranged in front of the seat assembly 100 for the baby to grasp, and both ends of the armrest crossbar 170 are connected with the armrest support rods 110. The backrest support rod 120 and the backrest main body (not shown in the drawings) covering the backrest support rod 120 form a backrest for supporting the baby's back, and the seat support rod 130 and the seat main body (not shown in the drawings) covering the seat support rod 130 form a seat for supporting the baby's buttocks.

[0063] As Figures 11 to 14 shown, the armrest fixing seat 200, the backrest fixing seat 300, the seat fixing seat 400 and the connection fixing seat 500 are coaxially pivotally connected.

[0064] The armrest fixing seat 200 includes a first main body part 210 and a first connection part 220 which are connected to each other. The first main body part 210 is generally in a disc shape, and the first connection part 220 is generally in a sleeve shape. The first connection part 220 can be used for connecting and cooperating with the armrest support rod 110.

[0065] The backrest fixing seat 300 includes a second main body part 310 and a second connection part 320 which are connected to each other. The second main body part 310 is generally in an annular shape, that is, a circular first through hole 311 is formed in the middle of the second main body part 310. The second connection part 320 is generally in a sleeve shape, and the second connection part 320 is used for connecting and cooperating with the backrest support member 120.

[0066] The seat fixing seat 400 includes a third main body part 410 and a third connection part 420 which are connected to each other. The third main body part 410 is generally in a frustum shape. A locking boss 411 is formed on the side of the third main body part 410 facing the backrest fixing seat 300. A generally circular second through hole 412 is formed in the middle of the locking boss 411. The second through hole 412 is arranged opposite to the first through hole 311. The third connection part 420 is generally in a sleeve shape and is used for sleeving and fixing with the seat support rod 130.

[0067] The connecting and fixing seat 500 is used to fix the seat 10 on the vehicle frame 20. The connecting and fixing seat 500 includes a fourth main body portion 510 that is generally disc-shaped and a mounting shaft 520 fixed to the middle of the fourth main body portion 510. The seat fixing seat 400, the backrest fixing seat 300, and the armrest fixing seat 200 are sequentially sleeved on the mounting shaft 520 to achieve coaxial pivoting. The first connecting portion 220, the second connecting portion 320, and the third connecting portion 420 can be respectively sleeved and fixed on the armrest support rod 110, the backrest support rod 120, and the seat support rod 130, or connected to the armrest support rod 110, the backrest support rod 120, and the seat support rod 130 in other ways, such as being fixedly connected by a pin, or can be integrally formed with the armrest support rod 110, the backrest support rod 120, and the seat support rod 130 respectively.

[0068] As Figures 6 to 11 shown, when the backrest fixing seat 300 rotates relative to the armrest fixing seat 200 to the first position (as Figure 6 shown in Figure 7 ), the first locking mechanism 620 locks the armrest fixing seat 200 and the seat fixing seat 400. When the backrest fixing seat 300 rotates relative to the armrest fixing seat 200 to the second position (as Figure 8 shown in Figure 9 ), the first locking mechanism 620 releases the locking of the armrest fixing seat 200 and the seat fixing seat 400, and the first position is different from the second position.

[0069] In this embodiment, the second position can be the position where the backrest fixing seat 300 rotates relative to the armrest fixing seat 200 to a position where the backrest support rod 120 and the armrest support rod 110 are substantially parallel or coincident, as Figure 8 shown, and the first position is other positions except the second position, as Figure 6 shown. Thus, when the seat 10 needs to be folded, the backrest fixing seat 300 can be rotated relative to the armrest fixing seat 200 from the first position to the second position, that is, the backrest support rod 120 and the armrest support rod 110 are substantially parallel or coincident. At this time, the first locking mechanism 620 releases the locking of the armrest fixing seat 200 and the seat fixing seat 400, and further operations can be performed to fold the armrest support rod 110, the backrest support rod 120, and the seat support rod 130 to a state where they are substantially parallel to save the storage space after the seat 10 is folded.

[0070] Specifically, as Figures 6 to 11As shown, the first locking mechanism 620 includes a first locking portion disposed on the armrest fixing base 200 and a second locking portion disposed on the seat fixing base 400. When the backrest fixing base 300 rotates relative to the armrest fixing base 200 to the first position, the first locking portion and the second locking portion are locked and engaged. When the backrest fixing base 300 rotates relative to the armrest fixing base 200 to the second position, the first locking portion and the second locking portion are disengaged. In this embodiment, the first locking portion is a clamping block 621 disposed on the armrest fixing base 200, and the second locking portion is a clamping groove 622 disposed on the seat fixing base 400 and capable of cooperating with the clamping block 621. Of course, the positions of the clamping block 621 and the clamping groove 622 can also be interchanged, or the first locking mechanism 620 can also adopt other forms, such as a clamping hook and a clamping hole that cooperate with each other, etc., and this is not limited thereto.

[0071] Optionally, as Figure 13 、 Figure 15 and Figure 23 shown, the clamping groove 622 is provided on the locking boss 411. The clamping block 621 is disposed on the side of the armrest fixing base 200 facing the backrest fixing base 300. A radially disposed mounting groove 213 is provided on the first main body portion 210 of the armrest fixing base 200 (as Figure 11 and Figure 22 shown). The clamping block 621 is disposed in the mounting groove 213, and the clamping block 621 extends out of the notch of the mounting groove 213 to cooperate with the clamping groove 622. The locking boss 411 passes through the through hole 311 so that the clamping block 621 can be locked and engaged with the clamping groove 622.

[0072] Furthermore, as Figure 9 、 Figure 13 、 Figure 15 and Figure 20 shown, the second main body portion 310 of the backrest fixing base 300 has a guide rail groove 312. The distance between the guide rail groove 312 and the notch of the clamping groove 622 is different at different positions, that is, the extension path of the guide rail groove 312 is gradually changing. Please refer to Figure 18 together. The clamping block 621 has a clamping portion 621a and a guide post 621b. The clamping portion 621a can be inserted into the clamping 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 relative to the armrest fixing base 200 to the second position, the guide rail groove 312 is the farthest from the center of the second main body portion 310, that is, the guide rail groove 312 is the farthest from the locking boss 411, and the clamping block 621 moves along the guide rail groove 312 until the clamping portion 621a disengages from the clamping groove 622. When the backrest fixing base 300 rotates relative to the armrest fixing base 200 to the first position, the clamping block 621 moves along the guide rail groove 312 until the clamping portion 621a can be inserted into the clamping groove 622.

[0073] In this way, on the one hand, when the backrest fixing seat 300 rotates relative to the armrest fixing seat 200 to the first position, the first locking mechanism 620 locks the armrest fixing seat 200 and the seat fixing seat 400. When the backrest fixing seat 300 rotates relative to the armrest fixing seat 200 to the second position, the first locking mechanism 620 releases the locking of the armrest fixing seat 200 and the seat fixing seat 400. On the other hand, during the unfolding process of the seat 10, due to the cooperation between the guide post 621b on the engaging block 621 and the guide rail groove 312, the armrest fixing seat 200 and the backrest fixing seat 300 are interlocked during pivoting. In this way, the armrest support rod 110 will unfold together with the backrest support rod 120 and even the entire frame assembly, and automatically return to the initial position, thus realizing the automatic return of the armrest support rod 110 during the unfolding process.

[0074] Further, as Figure 7 , Figure 9 and Figure 11 shown, the first locking mechanism 620 further includes a first elastic member 623. The two ends of the first elastic member 623 are respectively abutted against the armrest fixing seat 200 and the engaging block 621. Specifically, the two ends of the first elastic member 623 can be respectively abutted against the engaging block 621 and the bottom of the installation groove 213. The first elastic member 623 makes the engaging block 621 constantly move towards the engaging groove 622. In this way, after the state conversion of the seat is completed, such as from the folded state to the unfolded state, when the backrest fixing seat 300 rotates relative to the armrest fixing seat 200 to the first position, the engaging block 621 can automatically snap into the engaging groove 622 under the action of the first elastic member 623 to realize the locking of the armrest fixing seat 200 and the seat fixing seat 400, improving the safety performance.

[0075] Specifically, as Figure 7 , Figure 18 and Figure 19 shown, the installation method of the first elastic member 623 can be that an installation platform 621c is provided on the engaging block 621. The installation platform 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 one end of the first elastic member 623 away from the bottom of the installation groove 213 abuts against the abutting portion 621d. Of course, other methods can also be used to install the first elastic member 623. The first elastic member 623 can be a spring, an elastic rubber column, etc., and is not limited thereto.

[0076] Further, as Figures 3 to 9As shown, the second locking mechanism 610 can achieve relative locking between the armrest fixing seat 200 and the seat fixing seat 400. When the backrest fixing seat 300 rotates relative to the armrest fixing seat 200 to the second position, the second locking mechanism 610 can be operated so that the armrest fixing seat 200 and the seat fixing seat 400 rotate relative to each other. Thus, when the backrest fixing seat 300 rotates relative to the armrest fixing seat 200 to the second position, the second locking mechanism 610 can be operated to unlock between the armrest fixing seat 200 and the seat fixing seat 400, and the armrest fixing seat 200 and the seat fixing seat 400 rotate relative to each other, and finally the armrest support rod 110, the seat support rod 130, and the backrest support rod 120 are in a nearly parallel state, and the armrest support rod 110 does not tilt or protrude outward, so that the overall volume after folding is small, reducing the transportation cost and facilitating storage and placement. Due to the ingenious cooperation of the second locking mechanism 610 and the first locking mechanism 620, a double-locking insurance function is provided for the baby carrier. If only the second locking mechanism 610 is operated or the armrest fixing seat 200 is rotated relative to the backrest fixing seat 300 to the second position to make the first locking mechanism 620 in the unlocked state, the unlocking of the linkage folding frame cannot be achieved. Only when the second locking mechanism 610 and the first locking mechanism 620 are unlocked simultaneously can the armrest support rod 110, the backrest support rod 120, the seat support rod 130, etc. of the linkage folding frame rotate relative to each other. This can prevent the seat 10 from being accidentally folded when the second locking mechanism 610 is accidentally touched or the backrest support rod 120 is rotated to be substantially parallel or coincident with the armrest support rod 110, greatly improving the safety performance of the baby carrier.

[0077] Specifically, as Figure 7 and Figure 9 shown, the second locking mechanism 610 includes a third locking portion provided on the armrest fixing seat 200 and a fourth locking portion provided on the seat fixing seat 400. The third locking portion can be operated to cooperate with the fourth locking portion to lock or unlock, or the fourth locking portion can be operated to cooperate with the third locking portion to lock or unlock.

[0078] Optionally, as Figure 7 and Figure 9As shown, the third locking part is a locking pin 611 movably arranged on the armrest fixing seat 200, and the fourth locking part is a locking groove 612 arranged on the seat fixing seat 400 and capable of cooperating with the locking pin 611. In this way, the locking of the armrest fixing seat 200 and the seat fixing seat 400 can be realized through the cooperation of the locking pin 611 and the locking groove 612. By operating the locking pin 611 to make the locking pin 611 disengage from the locking groove 612, the second locking mechanism 610 can be unlocked, and the armrest fixing seat 200 and the seat fixing seat 400 can rotate relative to each other, that is, the armrest support rod 110 and the seat support rod 130 can rotate relative to each other. Of course, the positions of the locking pin 611 and the locking groove 612 can also be interchanged, or the third locking part and the fourth locking part can be in other forms, such as hooks and holes that can cooperate with each other, etc., and there is no limitation on this.

[0079] Further, as Figure 7 , Figure 9 and Figures 13 to 15 shown, the locking groove 612 is arranged on the locking boss 411. In this way, it is convenient to fix the armrest fixing seat 200 and the backrest fixing seat 300 at different relative positions. The locking pin 611 is arranged on the side of the armrest fixing seat 200 facing the backrest fixing seat 300. Specifically, an installation channel 211 radially penetrating through can be arranged on the first main body part 210 of the armrest fixing seat 200. One end of the locking pin 611 can pass through the installation channel 211 to cooperate with the locking groove 612, and the other end of the locking pin 611 can protrude outside the installation channel 211 for easy operation. The locking boss 411 passes through the first through hole 311 so that the locking pin 611 can be locked and cooperate with the locking groove 612. Please also refer to Figure 11 and Figure 22 , optionally, the installation groove 213 and the installation channel 211 are arranged along the same radial direction of the armrest fixing seat 200, that is, the engaging block 621 and the locking pin 611 are arranged along the same radial direction of the armrest fixing seat 200. In this way, the engaging block 621 and the locking pin 611 can lock the seat fixing seat 400 from two opposite sides of the armrest fixing seat 200.

[0080] Further, as Figure 16 and Figure 17 shown, the second locking mechanism 610 further includes a second elastic member 613. The two ends of the second elastic member 613 respectively abut against the armrest fixing seat 200 and the locking pin 611. The second elastic member 613 makes the locking pin 611 constantly move in the direction of the locking groove 612. In this way, after the state conversion of the seat 10 is completed, for example, from the folded state to the unfolded state, the locking pin 611 can automatically snap into the locking groove 612 under the action of the second elastic member 613 to realize the locking of the armrest fixing seat 200 and the seat fixing seat 400, without further manually operating the locking pin 611, which saves time and effort and can improve safety performance.

[0081] Optionally, as shown in Figure 7 , Figure 16 and Figure 17 , the second elastic member 613 can be arranged in such a way that a limiting post 212 is arranged on the inner wall of the installation channel 211, a limiting hole 611a arranged radially is provided on the locking pin 611, the limiting post 212 is inserted into the limiting hole 611a, and both ends of the second elastic member 613 respectively abut against the limiting post 212 and the hole wall on the side of the limiting hole 611a away from the locking boss 411. In this way, the second elastic member 613 can assist the locking pin 611 to reset. Of course, the second elastic member 613 can also be arranged in other ways. The second elastic member 613 is a spring, an elastic rubber column, etc., and there is no limitation on this.

[0082] Furthermore, as shown in Figures 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 drive the locking pin 611 to move. In this way, it is convenient for the user to operate the locking pin 611 and improve the user experience. Optionally, the operating member 614 is a webbing. Using the webbing as the operating member 614 hardly occupies the storage space and hardly increases the overall weight of the baby carrier. Of course, the operating member 614 can also be a pull ring, etc., and there is no limitation on this. A through hole 615 can be arranged at one end of the locking pin 611 protruding out of the installation channel 211, and the webbing can pass through the through hole 615 and be wound and fixed on the locking pin 611. Of course, the webbing can also be fixed to the fixing pin in other ways, and there is no limitation on this.

[0083] Furthermore, as shown in Figure 24 , when the fourth locking mechanism 630 is in the locked state, the rider 140 and the front foot support rod 150 are locked relative to each other; when the fourth locking mechanism 630 is in the unlocked state, the rider 140 and the front foot support rod 150 rotate relative to each other. In this way, the fourth locking mechanism 630 can be used to control the locking and unlocking of the rider 140 and the front foot support rod 150.

[0084] Specifically, as shown in Figure 13 , Figure 15 and Figure 24As shown, the fourth locking mechanism 630 includes a frame fixing seat 631 and a frame unlocking member 632 provided on the frame fixing seat 631. The frame fixing seat 631 is fixed to the side of the connection fixing seat 500 facing away from the seat fixing seat 400. The rotation of the armrest fixing seat 200 can drive the linkage assembly 700 to act on the frame unlocking member 632, so that the fourth locking mechanism 630 is converted from the locked state to the unlocked state. In this way, during the rotation and folding or rotation and unfolding process of the armrest support rod 110, the linkage assembly 700 can drive the frame unlocking member 632 to unlock, thereby releasing the lock between the rider 140 and the front foot support rod 150, and driving the rider 140 and the front foot support rod 150 to rotate and fold or rotate and unfold together.

[0085] Specifically, as Figure 13 , Figure 15 and Figure 24 shown, the linkage assembly 700 includes a pushing member 720 and a driving member 710 sleeved on the mounting shaft 520. The rotation of the armrest fixing seat 200 can drive the driving member 710 to move axially, so that the driving member 710 pushes against the pushing member 720, so that the pushing member 720 pushes against the frame unlocking member 632, so that the fourth locking mechanism 630 is converted from the locked state to the unlocked state.

[0086] The driving member 710 can be in various forms. For example, the driving member 710 can include a driving body 711 and a third elastic member 712. A first pushing inclined surface 711a is provided on the surface of the driving body 711 facing the armrest fixing seat 200. A second pushing inclined surface 214 that can cooperate with the first pushing inclined surface 711a is provided on the first main body portion 210 of the armrest fixing seat 200. The two ends of the third elastic member 712 are respectively in contact with the surface of the driving body 711 facing away from the armrest fixing seat 200 and the pushing member 720. The surface of the pushing member 720 facing away from the third elastic member 712 has a pushing protrusion 721 (as Figure 15 shown). The pushing protrusion 721 can pass through the connection fixing seat 500 and abut against the frame unlocking member 632. In this way, when the armrest fixing seat 200 is rotated, the second pushing inclined surface 214 will push against the first pushing inclined surface 711a, so that the driving body 711 axially pushes against the third elastic member 712, causing the third elastic member 712 to also axially push against the pushing member 720. The pushing member 720 then acts on the frame unlocking member 632 through the pushing protrusion 721. Through this interlocking interaction, the interlocking folding function of the armrest fixing seat 200 with the rider 140 and the front foot support rod 150 is realized.

[0087] Furthermore, as Figure 1 and Figure 2As shown, the third locking mechanism 640 includes a backrest unlocking member 641 located at the top of the backrest support rod 120. By pressing the backrest unlocking member 641, the angle adjustment of the backrest support member 120 relative to the armrest support rod 110 can be achieved. Specifically, when the third locking mechanism 640 is in the locked state, the backrest fixing base 300 and the armrest fixing base 200 are relatively locked; when the third locking mechanism 640 is in the unlocked state, the backrest fixing base 300 and the armrest fixing base 200 can rotate relative to each other. By pressing the backrest unlocking member 641, the third locking mechanism 640 can be converted from the locked state to the unlocked state.

[0088] The following is the specific process of the seat 10 with the interlocking folding of the armrest support rods being converted from the unfolded state to the folded state:

[0089] First, press the backrest unlocking member 641 to unlock the third locking mechanism 640, so that the backrest fixing base 300 can rotate relative to the armrest fixing base 200 to the second position, and the backrest support rod 120 coincides with or is parallel to the armrest support rod 110. At the same time, the first locking mechanism 620 is unlocked, and the engaging block 621 disengages from the engaging groove 622. At this time, pull the webbing so that the locking pin 611 disengages from the locking groove 612, and the second locking mechanism 610 is unlocked, then the armrest fixing base 200 and the backrest fixing base 300 can rotate relative to each other, driving the armrest support rod 110 and the seat support rod 130 to rotate towards the direction close to the backrest support rod 120 respectively, and finally making the armrest support rod 110, the seat support rod 130 and the backrest support rod 120 in a nearly parallel state, without the armrest support rod 110 being tilted or protruding outwards. At the same time, when the armrest fixing base 200 rotates, it can act on the frame unlocking member 632 of the fourth locking mechanism 630 through the linkage assembly 700, thereby releasing the lock between the rider 140 and the front foot support rod 150, and driving the rider 140 and the front foot support rod 150 to rotate and fold or rotate and unfold together. In this way, the folding of the entire frame assembly can be achieved.

[0090] The seat 10, the frame assembly and the baby carrier with the interlocking folding of the armrest support rods have at least the following technical effects:

[0091] 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 in conjunction with the backrest fixing seat 300. In this way, the armrest fixing seat 200 and the seat fixing seat 400 can be rotated to respectively drive the armrest support rod 110 and the seat support rod 130 to rotate in the direction close to the backrest support rod 120, and finally make the armrest support rod 110, the seat support rod 130 and the backrest support rod 120 in a nearly parallel state, and the armrest support rod 110 does not tilt or extend outward. In this way, the volume of the seat 10 after folding can be greatly reduced, which can reduce the transportation cost on the one hand, and also facilitate the user to store and place it on the other hand, save the occupied space, and improve the user's satisfaction.

[0092] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0093] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A frame assembly, characterized in that, it includes: a frame, including a rider, a front foot support rod and a fourth locking mechanism, the fourth locking mechanism being switchable between a locked state and an unlocked state; and a seat, provided on the frame, the seat including an armrest fixing seat and a linkage assembly; wherein, when the fourth locking mechanism is in the locked state, the rider and the front foot support rod are locked relative to each other; when the fourth locking mechanism is in the unlocked state, the rider and the front foot support rod rotate relative to each other; the armrest fixing seat can rotate to drive the linkage assembly to act on the fourth locking mechanism, so that the fourth locking mechanism is converted from the locked state to the unlocked state.

2. The frame assembly according to claim 1, characterized in that, the seat is detachably connected to the frame.

3. The frame assembly according to claim 1, characterized in that, the fourth locking mechanism includes a frame unlocking part, and the armrest fixing seat rotates to drive the linkage assembly to act on the frame unlocking part, so that the fourth locking mechanism is converted from the locked state to the unlocked state.

4. The frame assembly according to claim 3, characterized in that, the frame further includes a frame fixing seat and a connection fixing seat, the frame unlocking part is provided on the frame fixing seat, the frame fixing seat is fixed on a surface of the connection fixing seat facing away from the seat fixing seat, the connection fixing seat is provided with a mounting shaft, the linkage assembly includes a pushing part and a driving part sleeved on the mounting shaft, the rotation of the armrest fixing seat drives the driving part to move in the axial direction, so that the driving part pushes against the pushing part, so that the pushing part pushes against the frame unlocking part, so that the fourth locking mechanism is converted from the locked state to the unlocked state.

5. The frame assembly according to claim 4, characterized in that, the driving part includes a driving body and a third elastic part, a first pushing inclined surface is provided on a surface of the driving body facing the armrest fixing seat, the armrest fixing seat is provided with a second pushing inclined surface matching the first pushing inclined surface, two ends of the third elastic part respectively abut against a surface of the driving body facing away from the armrest fixing seat and the pushing part, a pushing protrusion is provided on a surface of the pushing part facing away from the third elastic part, and the pushing protrusion passes through the connection fixing seat and abuts against the frame unlocking part.

6. The frame assembly according to claim 1, characterized in that, the seat includes an armrest support rod, a backrest support rod, a seat support rod, a backrest fixing seat and a seat fixing seat, the armrest support rod is connected to the armrest fixing seat, the backrest support rod is connected to the backrest fixing seat, the seat support rod is connected to the seat fixing seat, the armrest fixing seat, the backrest fixing seat and the seat fixing seat are coaxially pivotally connected, and the armrest fixing seat and the seat fixing seat are folded together with the backrest fixing seat.

7. The frame assembly according to claim 6, characterized in that, It further includes a first locking mechanism. When the backrest fixing seat rotates relative to the armrest fixing seat to the first position, the first locking mechanism locks the armrest fixing seat and the seat fixing seat; when the backrest fixing seat rotates relative to the armrest fixing seat to the second position, the first locking mechanism releases the locking of the armrest fixing seat and the seat fixing seat.

8. The frame assembly according to claim 7, wherein, the first locking mechanism includes a first locking portion disposed on the armrest fixing seat and a second locking portion disposed on the seat fixing seat. When the backrest fixing seat rotates relative to the armrest fixing seat to the first position, the first locking portion and the second locking portion are in locking cooperation; when the backrest fixing seat rotates relative to the armrest fixing seat to the second position, the first locking portion and the second locking portion are disengaged.

9. The frame assembly according to claim 8, wherein, the first locking portion is a clamping block disposed on the armrest fixing seat, and the second locking portion is a clamping groove disposed on the seat fixing seat and cooperating with the clamping block.

10. The frame assembly according to claim 9, wherein, the backrest fixing seat has a first through opening, a locking boss is formed on one side of the seat fixing seat facing the backrest fixing seat, the clamping groove is disposed on the locking boss, the clamping block is disposed on one side of the armrest fixing seat facing the backrest fixing seat, and the locking boss passes through the first through opening so that the clamping block and the clamping groove are in locking cooperation.

11. The frame assembly according to claim 9 or 10, wherein, the backrest fixing seat has a guide rail groove, the distances between the guide rail groove and the notch of the clamping groove at different positions are different, the clamping block has a clamping portion and a guide post, the clamping portion is inserted into the clamping groove, the guide post is inserted into the guide rail groove and moves along the guide rail groove. When the backrest fixing seat rotates relative to the armrest fixing seat to the second position, the clamping block moves along the guide rail groove to disengage the clamping portion from the clamping groove; when the armrest fixing seat rotates relative to the backrest fixing seat to the first position, the clamping block moves along the guide rail groove to insert the clamping portion into the clamping groove.

12. The frame assembly according to claim 9 or 10, wherein, the first locking mechanism further includes a first elastic member, and 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 constantly move towards the direction of the clamping groove.

13. The frame assembly according to claim 12, wherein, a radially arranged mounting groove is provided on the armrest fixing seat, the clamping block is disposed in the mounting groove, the clamping portion of the clamping block extends out of the notch of the mounting groove to cooperate with the clamping groove, and two ends of the first elastic member respectively abut against the clamping block and the bottom of the mounting groove.

14. The frame assembly according to claim 13, wherein, The engaging block is provided with a mounting table, the mounting table includes an abutting portion and a protruding portion connected to each other, a part of the first elastic member is sleeved outside the protruding portion, and one end of the first elastic member away from the bottom of the mounting groove abuts against the abutting portion.

15. The frame assembly according to claim 7, wherein, it further includes a second locking mechanism, and the second locking mechanism locks the armrest fixing seat and the seat fixing seat; when the backrest fixing seat rotates relative to the armrest fixing seat to a second position, the second locking mechanism is operated to enable the armrest fixing seat and the seat fixing seat to rotate relative to each other.

16. The frame assembly according to claim 15, wherein, the second locking mechanism includes a third locking portion provided on the armrest fixing seat and a fourth locking portion provided on the seat fixing seat, the third locking portion is operated to cooperate with the fourth locking portion to lock or unlock, or the fourth locking portion is operated to cooperate with the third locking portion to lock or unlock.

17. The frame assembly according to claim 16, wherein, the third locking portion is a locking pin movably provided on the armrest fixing seat, and the fourth locking portion is a locking groove provided on the seat fixing seat and cooperating with the locking pin.

18. The frame assembly according to claim 17, wherein, the backrest fixing seat has a first through hole, a locking boss is formed on a side of the seat fixing seat facing the backrest fixing seat, the locking groove is provided on the locking boss, the locking pin is provided on a side of the armrest fixing seat facing the backrest fixing seat, and the locking boss passes through the first through hole so that the locking pin is in locking cooperation with the locking groove.

19. The frame assembly according to claim 18, wherein, the second locking mechanism further includes a second elastic member, and two ends of the second elastic member respectively abut against the armrest fixing seat and the locking pin, and the second elastic member enables the locking pin to constantly move in the direction of the locking groove.

20. The frame assembly according to claim 19, wherein, the armrest fixing seat is provided with an installation channel penetrating radially, one end of the locking pin passes through the installation channel to cooperate with the locking groove, a limiting post is provided on the inner wall of the installation channel, a limiting hole is provided on the locking pin along the radial direction, the limiting post is inserted into the limiting hole, and two ends of the second elastic member respectively abut against the limiting post and the hole wall on a side of the limiting hole away from the locking boss.

21. The frame assembly according to claim 17, wherein, the second locking mechanism further includes an operating member connected to the locking pin, and the operating member is operated to drive the locking pin to move.

22. The frame assembly according to claim 21, wherein, the operating member is a webbing.

23. The frame assembly according to claim 17, wherein, The first locking mechanism includes a clamping block disposed on the armrest fixing base and a clamping groove disposed on the seat fixing base and cooperating with the clamping block. The locking groove and the clamping groove are arranged circumferentially along the locking boss.

24. The frame assembly according to claim 23, wherein, the locking pin and the clamping block are arranged along the same radial direction of the locking boss and are located on both sides of the geometric center of the locking boss.

25. The frame assembly according to claim 6, wherein, it further includes a connecting fixing base, and an installation shaft is provided on the connecting fixing base. The seat fixing base, the backrest fixing base and the armrest fixing base are sleeved on the installation shaft for coaxial pivoting connection.

26. The frame assembly according to claim 6, wherein, it further includes a third locking mechanism. When the third locking mechanism is in the locked state, the backrest fixing base and the armrest fixing base are relatively locked; when the third locking mechanism is in the unlocked state, the backrest fixing base and the armrest fixing base can rotate relative to each other.

27. The frame assembly according to claim 6, wherein, the armrest support rod is detachably connected to the armrest fixing base or fixedly connected by a pin; and / or the backrest support rod is detachably connected to the backrest fixing base or fixedly connected by a pin; and / or the seat support rod is detachably connected to the seat fixing base or fixedly connected by a pin.

28. A baby carrier, wherein, it includes the frame assembly according to any one of claims 1 to 27.

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