Sleep box support convenient to fold and carrier using sleep box support

Abstract

The invention relates to the technical field of children products, in particular to a sleeping box support convenient to fold and a carrier using the sleeping box support, and the sleeping box support comprises a bustle pipe assembly, a bearing assembly, a bustle pipe locking assembly and a connecting rod mechanism. The bustle pipe unlocking assembly comprises a front bustle pipe and a rear bustle pipe, the bearing assembly is arranged below the bustle pipe assembly and at least comprises a front bottom plate and a rear bottom plate which are located below the front bustle pipe and the rear bustle pipe respectively, the front bottom plate and the rear bottom plate are directly or indirectly hinged, and the bustle pipe assembly suspends the bearing assembly below the bustle pipe assembly through a connecting rod mechanism. The bustle pipe unlocking assembly is arranged on the bustle pipe assembly and used for being in linkage with the bustle pipe locking assembly to relieve the locking state of the front bustle pipe. The locking state of the bustle pipe locking assembly on the front bustle pipe can be unlocked through the bustle pipe unlocking assembly, the front bustle pipe can be pulled to draw close to the rear bustle pipe for storage, the front bottom plate and the rear bottom plate are driven to be folded through the connecting rod mechanism, operation of a user is facilitated, storage and folding of the sleeping box support are achieved, and the sleeping box support is convenient to carry and store by the user.

Description

[Technical field]

[0001] The present invention relates to the technical field of children's products, and in particular to a sleeping box bracket which is easy to fold and a carrier using the sleeping box bracket. [Background technology]

[0002] Infant carriers such as baby sleeping boxes and seats can be used alone or connected to child stroller frames to facilitate carrying children.

[0003] Existing sleeping boxes can generally only be folded up and down, that is, the frame and the sleeping board are folded up and down. For example, a foldable sleeping basket disclosed in application number "202321087498.0" folds up and down to form a flat structure. Since the sleeping board and the frame cannot be folded in half longitudinally, the maximum size of the outer contour after folding remains unchanged, and there is still a defect of inconvenience in storage and carrying. Of course, the sleeping board and frame of other sleeping baskets are folded in half longitudinally, but the existing structures of this type have poor linkage when folding, and still occupy a large space after folding.

[0004] In addition, if the existing sleeping box is connected to a child stroller frame for use, when folding the child stroller frame, the sleeping box needs to be disassembled first, that is, the sleeping box and the child stroller frame are folded separately and independently. For example, the installation adapter structure of an infant carrier and a baby sleeping box disclosed in the application number "202222131936.0" cannot be folded. When used on a child stroller frame, the space occupied will be particularly large, which is inconvenient to carry. For example, when going out, it is difficult to put it in the trunk of the car for carrying, which is very inconvenient to use.

[0005] In view of the above technical problems, the present invention is proposed after research. [Summary of the invention]

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a sleeping box bracket that is easy to fold, comprising:

[0007] The enclosure tube assembly comprises a front enclosure tube and a rear enclosure tube, wherein two ends of the front enclosure tube are hinged with two ends of the rear enclosure tube and can rotate around a pivot axis a;

[0008] The bearing assembly is arranged below the enclosure tube assembly, and at least comprises a front bottom plate and a rear bottom plate respectively located below the front enclosure tube and the rear enclosure tube, the front bottom plate and the rear bottom plate being directly or indirectly hinged and being rotatable around a pivot axis b;

[0009] The enclosure tube locking assembly is arranged between the front enclosure tube and the rear enclosure tube and is used to lock the front enclosure tube relative to the rear enclosure tube;

[0010] The connecting rod mechanism is used to suspend the bearing assembly below the enclosure tube assembly through the connecting rod mechanism. The connecting rod mechanism is configured to: when the front enclosure tube is flipped and moved closer to the rear enclosure tube, the front bottom plate and the rear bottom plate are respectively moved closer to the corresponding front enclosure tube and rear enclosure tube;

[0011] The enclosure unlocking assembly is arranged on the enclosure assembly and is used to link the enclosure locking assembly to release the locking state of the front enclosure tube, so that the front enclosure tube can be relatively folded toward the rear enclosure tube, thereby driving the front bottom plate and the rear bottom plate to be folded accordingly.

[0012] As described above, the easily foldable sleeping box bracket, the connecting rod mechanism is also configured to: when the front surrounding tube is flipped and moved closer to the rear surrounding tube, it is used to link the front bottom plate to move closer to the rear bottom plate and reduce the upper and lower distances between the pivot axis a and the pivot axis b.

[0013] The easily foldable sleeping box bracket as described above further comprises a support assembly detachably connected to the baby carriage frame, and the support assembly is relatively fixedly connected to the end of the rear enclosure tube.

[0014] The foldable sleeping box bracket as described above, the connecting rod mechanism includes a front connecting rod assembly, a rear connecting rod assembly, and a connecting rod linkage assembly connecting the front connecting rod assembly and the rear connecting rod assembly;

[0015] The front connecting rod assembly includes an upper connecting rod hinged to the front enclosure tube, a lower connecting rod hinged to the front bottom plate, and a top rod hinged to the rear enclosure tube directly or indirectly at the rear end, and the lower end of the upper connecting rod, the upper end of the lower connecting rod, and the front end of the top rod are hinged to each other;

[0016] The rear connecting rod assembly includes at least two rear connecting rods arranged in parallel, and the upper and lower ends of the two rear connecting rods are respectively hinged to the rear surrounding tube and the rear bottom plate;

[0017] The connecting rod linkage assembly includes an active transmission rod synchronously arranged at the end of the front enclosure tube, a driven transmission rod is hinged on the free end of the active transmission rod, and the other end of the driven transmission rod extends obliquely toward the rear bottom plate and is hinged to the rear connecting rod assembly.

[0018] The foldable sleeping box bracket as described above, the bearing assembly also includes a middle bottom plate, and the two sides of the middle bottom plate are respectively hinged to the corresponding front bottom plate and rear bottom plate;

[0019] The lower part of the driven transmission rod is hinged to the rear connecting rod assembly, an intermediate connecting rod is hinged to the intermediate bottom plate, and the upper end of the intermediate connecting rod is hinged to the lower end of the driven transmission rod.

[0020] The foldable sleeping box bracket as described above, the support assembly includes a support arm and a support joint, the support joint is arranged at the lower part of the support arm, the support joint includes a support arm joint block, a frame connection joint block and a support joint locking mechanism arranged between the support arm joint block and the frame connection joint block, the frame connection joint block is detachably connected to the baby carriage frame, and a joint linkage unlocking assembly is arranged between the support joint and the front and rear tubes, and the joint linkage unlocking assembly is configured as follows: when the front tube is folded to a preset angle relative to the rear tube, the support joint is linked to be unlocked, so that the rear tube and the sleeping box bracket are flipped and folded relative to the baby carriage frame.

[0021] The sleeping box bracket that is easy to fold as described above, the support joint locking mechanism includes a support joint locking tooth block, a support joint tooth groove and a support joint reset piece, the support arm joint block and the frame connection joint block are both provided with support joint tooth grooves, and the support joint locking tooth block can be simultaneously engaged with the support joint tooth grooves on the support arm joint block and the frame connection joint block, and the support joint reset piece is placed between the support joint locking tooth block and the frame connection joint block;

[0022] The joint linkage unlocking component includes a guide groove arranged on the end of the rear surrounding tube and a support joint unlocking block arranged in the support joint for pushing the support joint locking tooth block out of the support joint tooth groove of the support arm joint block; a joint linkage slider is movably arranged in the guide groove; a flexible linkage part is arranged between the support joint unlocking block and the joint linkage slider; mutually abutting and cooperating support joint unlocking inclined surfaces are arranged between the support joint unlocking block and the opposite sides of the support arm joint block; a support joint unlocking protrusion is arranged on the end of the front surrounding tube for pushing the joint linkage slider to slide when the front surrounding tube is close to and folded to a preset angle relative to the rear surrounding tube.

[0023] As described above, the sleeping box support that is easy to fold, the support arm can be raised and lowered relative to the support joint.

[0024] The foldable sleeping box bracket as described above also includes a support rod, an end of the support rod and the end of the front surrounding tube are pivotally connected to each other, a support rod locking mechanism for locking the support rod relative to the front surrounding tube is provided between the support rod and the front surrounding tube, the support rod locking mechanism is configured to be linked with the surrounding tube unlocking assembly and the surrounding tube locking assembly accordingly, and the surrounding tube unlocking assembly first links the support rod locking mechanism to unlock, and then the support rod locking mechanism links the surrounding tube locking assembly to unlock.

[0025] As described above, the foldable sleeping box bracket has a strut end provided with a strut unlocking assembly for linking the strut locking mechanism to independently release the strut locking state. The strut unlocking assembly includes a strut unlocking piece movably provided on the strut end for unlocking the strut locking mechanism and a strut resetting piece for resetting the strut unlocking piece.

[0026] The foldable sleeping box bracket as described above, the strut locking mechanism includes a strut locking block for locking the strut relative to the front surrounding tube, the surrounding tube locking assembly includes a chuck for locking the front surrounding tube relative to the rear surrounding tube, the strut locking block can act on the chuck to move axially away from the end of the front surrounding tube, the surrounding tube unlocking assembly includes a pressure plate rotatably matched with the end of the front surrounding tube, a plurality of first inclined surfaces are formed on the pressure plate, and a plurality of second inclined surfaces are provided on the end of the front surrounding tube for abutting and matching with the first inclined surfaces when the pressure plate rotates to make the pressure plate move axially and then push the strut locking block and the chuck to correspondingly release the locking state of the strut and the front surrounding tube, and the minimum stroke for the axial movement of the strut locking block to release the locking state of the strut is L1, and the minimum stroke for the axial movement of the chuck to release the locking state of the front surrounding tube is L2, then: L2>L1.

[0027] As described above, the sleeping box bracket that is easy to fold, the support rod locking mechanism also includes a support rod slot provided on the end of the support rod and a limit through hole provided on the end of the front enclosure tube, one end side of the support rod locking block abuts against the chuck, the inner side of the limit through hole is provided with a limit slot along the circumferential direction, and the support rod locking block is provided with a support rod tooth that can simultaneously cooperate with the support rod slot and the limit slot;

[0028] The enclosure tube unlocking assembly also includes a handle provided on the front enclosure tube or the rear enclosure tube and a flexible connecting member provided between the handle and the pressure plate for pulling the pressure plate to rotate;

[0029] A strut unlocking linkage part is provided on the strut locking block, and the two sides of the strut unlocking linkage part are respectively abutted against the chuck and the pressure plate, and when the pressure plate is rotated by the flexible connecting part to produce axial movement, the strut unlocking linkage part drives the strut locking block and the abutting chuck to move axially accordingly, thereby successively releasing the locking state of the strut and the front surround tube.

[0030] The sleeping box bracket that is easy to fold as described above, the surrounding tube locking assembly includes a rear rotating part arranged at the end of the rear surrounding tube, and a front rotating part arranged at the end of the front surrounding tube, the front rotating part and the rear rotating part are rotatably connected via a pivot shaft a, a chuck is provided on the front rotating part and the rear rotating part, a plurality of latching teeth are formed on the chuck in the circumferential direction, a front latching groove is formed on the front rotating part, and a rear latching groove is formed on the rear rotating part, an elastic member is provided between the chuck and the rear rotating part for elastically acting on the chuck so that the latching teeth remain simultaneously latched into the front latching groove and the rear latching groove to limit the front rotating part from rotating relative to the rear rotating part, the surrounding tube unlocking assembly is connected to the chuck and can drive the chuck to axially displace and compress the elastic member so that the latching teeth are disengaged from the front latching groove;

[0031] The surrounding tube unlocking assembly includes a pressure plate rotatably matched with the front rotating part, a handle provided on the front surrounding tube or the rear surrounding tube, and a flexible connecting member provided between the handle and the pressure plate. A plurality of first inclined surfaces are formed on the pressure plate, and a plurality of second inclined surfaces are provided on the front rotating part for abutting and matching with the first inclined surfaces when the pressure plate rotates to make the pressure plate move axially.

[0032] The present invention also provides a carrier, which uses the easily foldable sleeping box bracket as described above, including a baby stroller frame with a frame joint. The baby stroller frame is placed in an unfolded and locked state or an unlocked and foldable state through the frame joint. The baby stroller frame is provided with a connection adapter for detachably connecting to the frame connection joint block.

[0033] As described above, a carrier has a frame unlocking member on the frame joint for unlocking it to fold the baby carriage frame, and a frame unlocking trigger member on the support arm joint block, which is used to unlock the rear tube and the support arm joint block relative to the baby carriage frame and flip to a preset angle to link the frame unlocking member to release the locked state of the frame joint.

[0034] Compared with the prior art, the sleeping box bracket that is easy to fold and the carrier using the sleeping box bracket of the present invention have the following advantages:

[0035] 1. The present invention provides a sleeping box bracket which is easy to fold. When the entire sleeping box needs to be stored, the locking state of the front surrounding tube by the surrounding tube locking assembly can be unlocked through the surrounding tube unlocking assembly, and the front surrounding tube can be pulled close to the rear surrounding tube for storage, and the front bottom plate and the rear bottom plate can be driven to fold through the connecting rod mechanism, which is convenient for users to operate and realize the storage and folding of the sleeping box bracket, which is convenient for users to carry and store.

[0036] 2. The present invention provides a sleeping box stand that is easy to fold. While the connecting rod mechanism drives the front bottom plate and the rear bottom plate to fold, the connecting rod mechanism itself can also be folded in the up and down directions, and can also be folded in half while being folded in the up and down directions, so that the space occupied by the entire sleeping box stand after folding can be smaller, which is convenient for users to carry and store.

[0037] 3. The sleeping box bracket that is easy to fold of the present invention can also unlock the support rod while unlocking the front surrounding tube through the surrounding tube unlocking assembly, thereby achieving a one-key storage effect, greatly facilitating user operation, and eliminating tedious folding steps.

[0038] 4. The carrier of the present invention can be linked to the stroller frame by using the above-mentioned sleeping box bracket, so that the stroller frame can also be folded synchronously, and the connecting adapter can be unlocked to make the entire sleeping box bracket in a detachable state. In this way, the entire sleeping box bracket can be folded while the entire stroller frame can be folded at the same time, realizing one-key folding, which is easy to operate, and the entire stroller after folding can also be convenient for users to store and carry.

Brief Description of the Drawings

[0039] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0040] Figure 1It is a structural schematic diagram of a baby carriage frame in the present invention.

[0041] Figure 2 It is a structural schematic diagram of the connecting rod mechanism in the present invention.

[0042] Figure 3 It is a structural schematic diagram of the surrounding tube locking assembly in the present invention.

[0043] Figure 4 It is a structural schematic diagram of the support assembly in the present invention.

[0044] Figure 5 It is a structural schematic diagram of the surrounding pipe unlocking assembly in the present invention.

[0045] Figure 6 It is a structural schematic diagram of the support rod locking mechanism in the present invention.

[0046] Figure 7 It is a structural schematic diagram of the support rod locking block in the present invention.

[0047] Figure 8 It is a structural schematic diagram of the support rod clamping teeth in the present invention.

[0048] Fig. 9 It is a schematic diagram of the structure in which the latching teeth are latched into the front rotating part in the present invention.

[0049] Fig.10 It is a structural schematic diagram of the pressure plate in the present invention.

[0050] Fig.11 It is a structural schematic diagram of the front rotating part in the present invention.

[0051] Fig.12 It is another structural schematic diagram of the support assembly in the present invention.

[0052] Fig.13 It is a schematic diagram of the structure of the support joint unlocking protrusion in the present invention.

[0053] Fig.14 It is a structural schematic diagram of the support joint locking mechanism in the present invention.

[0054] Fig.15 It is a structural schematic diagram of the support joint unlocking block in the present invention.

[0055] Fig.16 It is a structural schematic diagram of the support arm in the present invention.

[0056] Fig.17 It is a structural schematic diagram of the bayonet in the present invention.

[0057] Fig.18 It is a structural schematic diagram of the support arm unlocking assembly in the present invention.

[0058] Fig.19 It is a structural schematic diagram of the tension and compression member in the present invention.

[0059] Fig. 20 It is another structural schematic diagram of the baby carriage frame in the present invention.

[0060] Fig.21 Fig.16 Schematic diagram of the enlarged structure at point A in the middle. [Specific implementation method]

[0061] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0062] like Figure 1-21 As shown, the present invention includes a sleeping box bracket that is easy to fold, including a surrounding tube assembly 1, a bearing assembly 2, a surrounding tube locking assembly 3, a connecting rod mechanism 4, and a surrounding tube unlocking assembly 5.

[0063] The enclosure tube assembly 1 includes a front enclosure tube 10 and a rear enclosure tube 11. The two ends of the front enclosure tube 10 are hinged to the two ends of the rear enclosure tube 11 and can rotate around the pivot axis a200.

[0064] The bearing assembly 2 is arranged below the enclosure tube assembly 1, and at least comprises a front bottom plate 20 and a rear bottom plate 21 respectively located below the front enclosure tube 10 and the rear enclosure tube 11. The front bottom plate 20 and the rear bottom plate 21 are directly or indirectly hinged and can rotate around the pivot axis b201. The front enclosure tube 10, the rear enclosure tube 11, the front bottom plate 20 and the rear bottom plate 21 form a bearing area, and when in use, a cloth or other structure can be arranged between the enclosure tube assembly 1 and the bearing assembly 2 for shielding.

[0065] The enclosure tube locking assembly 3 is disposed between the front enclosure tube 10 and the rear enclosure tube 11 and is used to lock the front enclosure tube 10 relative to the rear enclosure tube 11. In order to relatively fix the front enclosure tube 10 and the rear enclosure tube 11 during use, the enclosure tube locking assembly 3 is required to fix the two.

[0066] The connecting rod mechanism 4, the surrounding tube assembly 1 suspends the bearing assembly 2 below the surrounding tube assembly 1 through the connecting rod mechanism 4, and the connecting rod mechanism 4 is configured to: when the front surrounding tube 10 is flipped and moved closer to the rear surrounding tube 11, it is used to link the front bottom plate 20 and the rear bottom plate 21 to move closer to the corresponding front surrounding tube 10 and rear surrounding tube 11 respectively. The connecting rod mechanism 4 mainly has two functions: one is to connect the surrounding tube assembly 1 with the bearing assembly 2, and suspend the bearing assembly 2 through the connecting rod mechanism 4; the other is to fold and store the front bottom plate 20 and the rear bottom plate 21 through the connecting rod mechanism 4 when the front surrounding tube 10 and the rear surrounding tube 11 are folded and stored.

[0067] The enclosure unlocking assembly 5 is provided on the enclosure assembly 1 and is used to link the enclosure locking assembly 3 to release the locking state of the front enclosure 10, so that the front enclosure 10 can be relatively folded toward the rear enclosure 11, thereby driving the front bottom plate 20 and the rear bottom plate 21 to be folded accordingly.

[0068] When the present invention needs to store the entire sleeping box, the locking state of the front surrounding tube 10 by the surrounding tube locking assembly 3 can be unlocked through the surrounding tube unlocking assembly 5, so that the front surrounding tube 10 can be pulled close to the rear surrounding tube 11 for storage, and the front bottom plate 20 and the rear bottom plate 21 can be driven to fold through the connecting rod mechanism 4, realizing one-step storage and folding, which is convenient for user operation, and the sleeping box bracket can be folded for user storage.

[0069] As a further solution of this embodiment, the link mechanism 4 is further configured to: when the front enclosure tube 10 is turned over and brought closer to the rear enclosure tube 11, it is used to link the front bottom plate 20 to move closer to the rear bottom plate 21, and to reduce the vertical distance between the pivot axis a200 and the pivot axis b201. When folding, the front bottom plate 20 and the rear bottom plate 21 can be driven by the link mechanism 4 to move towards each other at the same time, so that the folding can be smoother. At the same time, after the vertical distance between the pivot axis a200 and the pivot axis b201 is reduced, the folding can be made more compact, and the space occupied by the entire sleeping box bracket after folding can be smaller.

[0070] Please refer to Figure 4 As a further solution of this embodiment, it also includes a support assembly 6 that is detachably connected to the baby carriage frame 100, and the support assembly 6 is relatively fixedly connected to the end of the rear enclosure tube 11.

[0071] Please refer to Figure 2 As a further solution of this embodiment, the connecting rod mechanism 4 includes a front connecting rod assembly 40 and a rear connecting rod assembly 41 and a connecting rod linkage assembly 42 connecting the front connecting rod assembly 40 with the rear connecting rod assembly 41.

[0072] The front connecting rod assembly 40 includes an upper connecting rod 401 hinged to the front surrounding tube 10, a lower connecting rod 402 hinged to the front bottom plate 20, and a top rod 403 whose rear end is directly or indirectly hinged to the rear surrounding tube 11. The lower end of the upper connecting rod 401, the upper end of the lower connecting rod 402, and the front end of the top rod 403 are hinged to each other.

[0073] The rear connecting rod assembly 41 includes at least two rear connecting rods 410 arranged in parallel, and the upper and lower ends of the two rear connecting rods 410 are respectively hinged to the rear surrounding tube 11 and the rear bottom plate 21. The rear connecting rod assembly 41 can realize a suspension effect on the rear bottom plate 21, and cooperate with the front connecting rod assembly 40 to suspend the entire bearing assembly 2. The two rear connecting rods 410 arranged in parallel can make the rear bottom plate 21 more stable, and can also remain parallel to the rear surrounding tube 11 during movement during operation.

[0074] The connecting rod linkage assembly 42 includes an active transmission rod 420 which is synchronously arranged at the end of the front enclosure tube 10 . A driven transmission rod 421 is hinged on the free end of the active transmission rod 420 . The other end of the driven transmission rod 421 extends obliquely toward the rear bottom plate 21 and is hinged to the rear connecting rod assembly 41 .

[0075] In the process of storing the entire sleeping box, after the surrounding tube locking assembly 3 is unlocked by the surrounding tube unlocking assembly 5, the front surrounding tube 10 can be rotated upward to rotate around the pivot axis a200. At this time, the active transmission rod 420 drives the driven transmission rod 421 to move, and the driven transmission rod 421 can be directly or indirectly hinged with one of the rear connecting rods 410 in the rear connecting rod assembly 41, and the rear bottom plate 21 is driven to move through the rear connecting rod 410. At the same time, due to the rotation of the front surrounding tube 10, the top rod 403 will support the upper connecting rod 401, the lower connecting rod 402 and the hinge of the top rod 403 to form a folded state, so that the front bottom plate 20 will also be stored and folded under the drive of the front connecting rod assembly 40.

[0076] Please refer to Figure 5 As a further solution of this embodiment, since the connecting rod mechanism 4 will also occupy a certain space after the entire sleeping box bracket is folded and stored, in order to better accommodate the connecting rod mechanism 4, the bearing assembly 2 also includes an intermediate bottom plate 22, and the two sides of the intermediate bottom plate 22 are respectively hinged to the corresponding front bottom plate 20 and rear bottom plate 21. After the intermediate bottom plate 22 is set, there is a certain distance between the front bottom plate 20 and the rear bottom plate 21 after folding, which can facilitate the accommodation of the connecting rod mechanism 4. At the same time, it can also make the entire frame more beautiful after folding, and prevent the problem of narrow hinges at the bottom of the front bottom plate 20 and the rear bottom plate 21 and too large top openings.

[0077] The lower part of the driven transmission rod 421 is hinged to the rear connecting rod assembly 41, and the intermediate connecting rod 422 is hinged to the intermediate bottom plate 22, and the upper end of the intermediate connecting rod 422 is hinged to the lower end of the driven transmission rod 421. Since the intermediate bottom plate 22 may be unstable during the movement, the intermediate bottom plate 22 is provided. Therefore, the intermediate connecting rod 422 is provided to connect with the driven transmission rod 421 in this embodiment, so that during the movement, the driven transmission rod 421 can simultaneously drive the intermediate connecting rod 422 to move, and then drive the intermediate bottom plate 22 to move simultaneously, so that the front bottom plate 20, the intermediate bottom plate 22 and the rear bottom plate 21 can be linked simultaneously.

[0078] Please refer to Figure 12-15As a further solution of this embodiment, the support assembly 6 includes a support arm 61 and a support joint 62, the support joint 62 is arranged at the lower part of the support arm 61, the support joint 62 includes a support arm joint block 621, a frame connection joint block 622 and a support joint locking mechanism 623 arranged between the support arm joint block 621 and the frame connection joint block 622, the frame connection joint block 622 is detachably connected to the baby carriage frame 100, and a joint linkage unlocking assembly 60 is arranged between the support joint 62 and the front surrounding tube 10 and the rear surrounding tube 11, and the joint linkage unlocking assembly 60 is configured as follows: when the front surrounding tube 10 is folded to a preset angle relative to the rear surrounding tube 11, the support joint 62 is unlocked in linkage, so that the rear surrounding tube 11 and the sleeping box bracket are flipped and folded relative to the baby carriage frame 100.

[0079] In this embodiment, by providing a detachable connection between the frame connecting joint block 622 and the stroller frame 100, it is convenient for the user to install the entire sleeping box bracket into the stroller frame 100, and when folding the sleeping box bracket, the support joint locking mechanism 623 can be unlocked by the linkage unlocking component 60 to unlock the locking of the support arm joint block 621, so that the entire sleeping box bracket can be rotated relative to the frame connecting joint block 622 through the support arm joint block 621, so that after the entire sleeping box bracket is folded, it can also be folded towards the stroller frame 100, so that the space occupied after folding will be smaller, which is convenient for users to carry.

[0080] As a further solution of this embodiment, the support joint locking mechanism 623 includes a support joint locking tooth block 6231, a support joint tooth groove 6232 and a support joint reset component 6233. Both the support arm joint block 621 and the frame connection joint block 622 are provided with a support joint tooth groove 6232, and the support joint locking tooth block 6231 can be simultaneously engaged with the support joint tooth groove 6232 on the support arm joint block 621 and the frame connection joint block 622, and the support joint reset component 6233 is placed between the support joint locking tooth block 6231 and the frame connection joint block 622.

[0081] When the support joint locking mechanism 623 locks the support arm joint block 621, the support joint locking tooth block 6231 is simultaneously engaged with the support joint tooth groove 6232 on the support arm joint block 621 and the frame connection joint block 622. Since the frame connection joint block 622 is fixedly connected relative to the stroller frame 100, the support arm joint block 621 is also fixed relative to the stroller frame 100. It should be noted that the support joint reset member 6233 can be a spring, a disc spring, or the like that can reset the support joint locking tooth block 6231.

[0082] The joint linkage unlocking assembly 60 includes a guide groove 601 arranged on the end of the rear surrounding tube 11 and a support joint unlocking block 602 arranged in the support joint 62 for pushing the support joint locking tooth block 6231 out of the support joint tooth groove 6232 of the support arm joint block 621. A joint linkage slider 603 is movably arranged in the guide groove 601, a flexible linkage part 604 is arranged between the support joint unlocking block 602 and the joint linkage slider 603, and a support joint unlocking inclined surface 605 that abuts against each other is arranged between the support joint unlocking block 602 and the opposite side of the support arm joint block 621. A support joint unlocking protrusion 606 is provided on the end of the front surrounding tube 10 for pushing the joint linkage slider 603 to slide when the front surrounding tube 10 is close to and folded to a preset angle relative to the rear surrounding tube 11.

[0083] When the front enclosure tube 10 is unlocked, the front enclosure tube 10 is rotated, and the front enclosure tube 10 drives the joint linkage slider 603 to move in the guide slot 601 through the support joint unlocking protrusion 606, and then drives the support joint unlocking block 602 to rotate through the flexible linkage 604, and the support joint unlocking block 602 rotates to cooperate with the support joint unlocking inclined surface 605, and then pushes the support joint locking tooth block 6231 away from the support arm joint block 621, so as to unlock the support arm joint block 621. It should be noted that the flexible linkage 604 can use a steel rope.

[0084] Please refer to Figures 16 to 19 As a further solution of this embodiment, the support arm 61 can be raised and lowered relative to the support joint 62. By setting the support arm 61 and the support joint 62 to be raised and lowered, it is convenient for users to adjust and use, and can also be further used for storage. Specifically, the lower part of the support arm 61 is plugged into the upper part of the support joint 62 for telescopic cooperation. A support arm locking component 660 for fixing the two after adjusting them to an appropriate position and a support arm unlocking component 670 for releasing the locking state of the support arm locking component 660 are provided between the support arm 61 and the support joint 62.

[0085] The support arm locking assembly 660 includes a latch pin 661 arranged in the support arm 61, and a plurality of engaging holes 662 for engaging with the latch pin 661 are provided on one side in the length direction of the support joint 62. The support arm locking assembly 660 also includes an elastic component 663 that can keep the latch pin 661 engaged in the engaging hole 662. The elastic component 663 is arranged between the latch pin 661 and the support arm 61, and the elastic component 663 can be a spring.

[0086] The support arm unlocking assembly 670 includes a pulling and pressing piece 671 that can move up and down in the support arm 61, and a hole (not marked in the figure) is formed in the pulling and pressing piece 671 for the front part of the pin 661 to pass through, and a seventh inclined surface 673 is formed on the left and right sides of the pulling and pressing piece 672, and an eighth inclined surface 674 abutting against the seventh inclined surface 673 is formed in the shape of 676 on the left and right sides of the pin 661. The support arm unlocking assembly 670 also includes a support arm unlocking button 675 arranged on the rear surrounding tube 11, and a push block 676 arranged in the rear surrounding tube 11 for cooperating with the support arm unlocking button 675. The support arm unlocking button 675 can squeeze the push block 676 to move by means of inclined surface extrusion, and also includes a flexible member 677 arranged between the push block 676 and the pulling and pressing piece 672, and the flexible member 677 can be a steel rope. When it is necessary to adjust the height, the support arm unlocking button 675 is pressed to squeeze the push block 676 to move, and the push block 676 then drives the tension and pressure member 672 to move through the flexible member 677, and then squeezes the eighth slope 674 through the seventh slope 673, so that the latch 661 squeezes the elastic member 663, and the latch 661 shrinks and separates from the latch hole 662. At this time, the height can be adjusted as needed.

[0087] It should be noted that a groove (not shown in the figure) can be provided in the support arm 61 to limit the upward and downward displacement of the latch 661 . When the tension and pressure member 672 acts on the latch 661 , it only pushes the latch 661 inward to extrude the elastic component 663 .

[0088] Please refer to Figure 2-11 As a further solution of this embodiment, it also includes a support rod 7, the end of the support rod 7 is pivotally connected to the end of the front surrounding tube 10, and a support rod locking mechanism 8 for locking the support rod 7 relative to the front surrounding tube 10 is provided between the support rod 7 and the front surrounding tube 10. The support rod locking mechanism 8 is configured to be linked with the surrounding tube unlocking component 5 and the surrounding tube locking component 3 accordingly, and the surrounding tube unlocking component 5 first links the support rod locking mechanism 8 to unlock, and then the support rod locking mechanism 8 links the surrounding tube locking component 3 to unlock. By providing the support rod 7, it is easy to lift the entire sleeping box bracket, which is convenient for users to carry. In addition, the support rod 7 can also be used as a supporting frame, and a shielding cloth can be provided between it and the front surrounding tube 10 or the rear surrounding tube 11 to protect children. The support rod 7 can be locked by the support rod locking mechanism 8 to prevent the support rod 7 from rotating. When folding and storage is required, the support rod 7 and the front surrounding tube 10 can be unlocked by successively linking the support rod locking mechanism 8 through the surrounding tube unlocking component 5. In addition, the surrounding tube unlocking component 5 can first unlock the support rod 7 and then unlock the front surrounding tube 10. This makes it convenient for users to fold and prevents the front surrounding tube 10 and the support rod 7 from being unlocked at the same time, making it convenient for users to fold.

[0089] As a further solution of this embodiment, a rod unlocking assembly 9 is provided at the end of the support rod 7 for independently unlocking the locking state of the support rod 7 by linking the support rod locking mechanism 8. The support rod 7 can be directly unlocked by the support rod unlocking assembly 9, which is convenient for user operation. The support rod unlocking assembly 9 includes a support rod unlocking member 90 movably provided at the end of the support rod 7 and capable of acting on the support rod locking mechanism 8 to unlock the support rod, and a support rod reset member 91 for resetting the support rod unlocking member 90. In order to further facilitate the user to unlock the support rod 7, the support rod unlocking member 90 is provided to directly act on the support rod locking mechanism 8 to unlock the support rod 7, which is convenient for user operation.

[0090] As a further solution of this embodiment, the strut locking mechanism 8 includes a strut locking block 81 for locking the strut 7 relative to the front surround tube 10, and the surround tube locking assembly 3 includes a chuck 32 for locking the front surround tube 10 relative to the rear surround tube 11. The strut locking block 81 can act on the chuck 32 to move axially away from the end of the front surround tube 10, and the surround tube unlocking assembly 5 includes a pressure plate 50 that can rotatably cooperate with the end of the front surround tube 10, and a plurality of first inclined surfaces 53 are formed on the pressure plate 50. The end of the front surround tube 10 is provided with a plurality of second inclined surfaces 54 that are used to abut and cooperate with the first inclined surfaces 53 when the pressure plate 50 rotates, so that the pressure plate 50 moves axially and then pushes the strut locking block 81 and the chuck 32 to correspondingly release the locking state of the strut 7 and the front surround tube 10, and the minimum stroke for the strut locking block 81 to axially move to release the locking state of the strut 7 is L1, and the minimum stroke for the chuck 32 to axially move to release the locking state of the front surround tube 10 is L2, then: L2>L1.

[0091] When the strut 7 and the front enclosure tube 10 are in a locked state, the strut locking block 81 can lock the strut relative to the front enclosure tube 10, and the chuck 32 can lock the front enclosure tube 10. The pressure plate 50 in the enclosure tube unlocking assembly 5 can be driven simultaneously, and the strut locking block 81 and the chuck 32 move axially. Since L2>L1, the strut 7 can be unlocked first and then the front enclosure tube 10.

[0092] As a further solution of this embodiment, the strut locking mechanism 8 also includes a strut slot 80 arranged on the end of the strut 7 and a limiting through hole 82 arranged on the end of the front tube 10. One end of the strut locking block 81 abuts against the chuck 32. A limiting slot 83 is circumferentially arranged on the inner side of the limiting through hole 82. The strut locking block 81 is provided with a strut tooth 84 that can simultaneously engage with the strut slot 80 and the limiting slot 83. After the strut tooth 84 is provided on the strut locking block 81, the strut tooth 84 can be simultaneously engaged in the limiting slot 83 and the strut slot 80, so that the strut 7 can be locked relative to the front tube 10.

[0093] The enclosure tube unlocking assembly 5 also includes a handle 51 provided on the front enclosure tube 10 or the rear enclosure tube 11 and a flexible connector 52 provided between the handle 51 and the pressure plate 50 for pulling the pressure plate 50 to rotate. By providing the handle 51 on the front enclosure tube 10 or the rear enclosure tube 11, it is convenient for the user to operate. After the handle 51 pulls the pressure plate 50 to rotate through the flexible connector 52, the pressure plate 50 can be driven to rotate, so that the first inclined surface 53 on the upper side cooperates with the second inclined surface 54 on the front enclosure tube, driving the pressure plate 50 to move axially and then the top chuck 32 releases the front enclosure tube 10. It should be noted that the flexible connector 52 can be a steel rope.

[0094] The support rod locking block 81 is provided with a support rod unlocking linkage part 85, and the two sides of the support rod unlocking linkage part 85 are respectively abutted against the chuck 32 and the pressure plate 50, and when the pressure plate 50 is rotated by the flexible connecting member 52 to generate axial movement, the support rod unlocking linkage part 85 drives the support rod locking block 81 and the abutting chuck 32 to move axially accordingly, and successively releases the locking state of the support rod 7 and the front enclosure tube 10. When unlocking the support rod 7, by pulling the handle 51, the handle 51 acts on the pressure plate 50 through the flexible connecting member 52, and after the pressure plate 50 rotates, the first inclined surface 53 and the second inclined surface 54 cooperate to make the pressure plate 50 axially move, squeeze the support rod unlocking linkage part 85, and the support rod unlocking linkage part 85 can drive the support rod clamping teeth 84 in the support rod locking block 81 to separate from the support rod clamping groove 80, thereby unlocking the support rod rotating part 70, and realizing the unlocking of the support rod 7.

[0095] Please refer to Figure 3 , 6 -11, as a further solution of the present embodiment, the surrounding tube locking assembly 3 includes a rear rotating part 30 arranged at the end of the rear surrounding tube 11, and a front rotating part 31 arranged at the end of the front surrounding tube 10, the front rotating part 31 and the rear rotating part 30 are rotatably connected via a pivot axis a200, a chuck 32 is provided on the front rotating part 31 and the rear rotating part 30, a plurality of latching teeth 34 are formed on the chuck 32 in the circumferential direction, a front latching groove 35 is formed on the front rotating part 31, and a rear latching groove 35 is formed on the rear rotating part 30, an elastic member 33 is provided between the chuck 32 and the rear rotating part 30 for elastically acting on the chuck 32 so that the latching teeth 34 remain simultaneously engaged in the front latching groove 35 and the rear latching groove 35 to limit the rotation of the front rotating part 31 relative to the rear rotating part 30, the surrounding tube unlocking assembly 5 is connected to the chuck 32 and can drive the chuck 32 to axially displace and compress the elastic member 33 so that the latching teeth 34 are disengaged from the front latching groove 35. It should be noted that the elastic member 33 can be a spring, a disc spring or other components that can continuously provide a force to the chuck 32 , and can support the chuck 32 in the absence of other external forces, so that the locking teeth 34 can be locked into the front slot 35 .

[0096] The enclosure tube unlocking assembly 5 includes a pressure plate 50 rotatably matched with the front rotating part 31, a handle 51 provided on the front enclosure tube 10 or the rear enclosure tube 11, and a flexible connecting member 52 provided between the handle 51 and the pressure plate 50. A plurality of first inclined surfaces 53 are formed on the pressure plate 50, and a plurality of second inclined surfaces 54 are provided on the front rotating part 31 for abutting and matching with the first inclined surfaces 53 when the pressure plate 50 rotates to make the pressure plate 50 move axially. When the handle 51 acts on the flexible connecting member 52, the other end is stretched to drive the pressure plate 50 to rotate, so that the pressure plate 50 moves axially in the process of the first inclined surface 53 squeezing the second inclined surface 54, and then the pressure plate 50 pushes the chuck 32 and the front clamping groove 35 to unlock the locked state of the front enclosure tube 10.

[0097] View Figure 1 , 20 21. The present invention also provides a carrier, using the above-mentioned sleeping box bracket that is easy to fold, including a stroller frame 100 with a frame joint 101. The stroller frame 100 is placed in an unfolded and locked state or an unlocked and foldable state through the frame joint 101. The stroller frame 100 is provided with a connection adapter 102 for detachable connection with the frame connection joint block 622. The carrier of the present invention can be easily connected and installed with the sleeping box bracket through the connection adapter 102. When the sleeping box bracket is unfolded and used, the stroller frame 100 is unfolded and locked through the frame joint 101, which is convenient for users to use. When the sleeping box bracket is folded, the stroller frame 100 can also be unlocked and folded through the frame joint 101, so that the sleeping box bracket and the stroller frame 100 can be folded together, which is convenient for users to store and carry.

[0098] As a further solution of this embodiment, the frame joint 101 is provided with a frame unlocking member 103 for unlocking it to fold the baby carriage frame 100, and the support arm joint block 621 is provided with a frame unlocking trigger 104, which is used to unlock the frame joint 101 when the rear surrounding tube 11 and the support arm joint block 621 are unlocked and flipped to a preset angle relative to the baby carriage frame 100 to link the frame unlocking member 103 to unlock the frame joint 101. This application can facilitate the folding of the baby carriage frame 100 through the frame unlocking member 103, and at the same time, the support arm joint block 621 is linked to fold through the frame unlocking trigger 104, that is, when the sleeping box bracket is folded, the frame unlocking trigger 104 can be triggered to fold the baby carriage frame 100 with one key, which is convenient for users to use.

[0099] It should be noted that the frame joint 101, the connecting adapter 102, the frame unlocking member 103 and the frame unlocking trigger member 104, as well as the corresponding folding structure of the baby carriage frame 100 have been disclosed in the application number "202321203527.5" and the name "A conveniently foldable children's stroller". The frame unlocking member 103 and the frame unlocking trigger member 104 in the present application are the same or similar to the structure in the application, and will not be repeated in the present application.

Claims

1. A sleeping box support that is easy to fold, characterized in that include: The enclosure tube assembly (1) comprises a front enclosure tube (10) and a rear enclosure tube (11), wherein two ends of the front enclosure tube (10) are hingedly connected to two ends of the rear enclosure tube (11) and can rotate around a pivot axis a (200); The bearing assembly (2) is arranged below the enclosure tube assembly (1), and comprises at least a front bottom plate (20) and a rear bottom plate (21) respectively located below the front enclosure tube (10) and the rear enclosure tube (11), wherein the front bottom plate (20) and the rear bottom plate (21) are directly or indirectly hinged and can rotate around a pivot axis b (201); A surrounding tube locking assembly (3), the surrounding tube locking assembly (3) is arranged between the front surrounding tube (10) and the rear surrounding tube (11), and is used to lock the front surrounding tube (10) relative to the rear surrounding tube (11); A connecting rod mechanism (4), wherein the enclosure tube assembly (1) suspends the bearing assembly (2) below the enclosure tube assembly (1) through the connecting rod mechanism (4), and the connecting rod mechanism (4) is configured to: when the front enclosure tube (10) is turned over and moved closer to the rear enclosure tube (11), the front bottom plate (20) and the rear bottom plate (21) are linked to move closer to the corresponding front enclosure tube (10) and rear enclosure tube (11) respectively; The enclosure tube unlocking assembly (5) is arranged on the enclosure tube assembly (1) and is used to work in conjunction with the enclosure tube locking assembly (3) to release the locking state of the front enclosure tube (10), thereby allowing the front enclosure tube (10) to be moved closer and folded relative to the rear enclosure tube (11), thereby driving the front bottom plate (20) and the rear bottom plate (21) to be moved closer and folded accordingly.

2. The foldable sleeping box support according to claim 1 is characterized in that The connecting rod mechanism (4) is also configured to: when the front enclosure tube (10) is turned over and moved closer to the rear enclosure tube (11), it is used to link the front bottom plate (20) to move closer to the rear bottom plate (21) and reduce the vertical distance between the pivot axis a (200) and the pivot axis b (201).

3. The foldable sleeping box support according to claim 2 is characterized in that It also comprises a support assembly (6) detachably connected to the baby carriage frame (100), wherein the support assembly (6) is relatively fixedly connected to the end of the rear enclosure tube (11).

4. The foldable sleeping box support according to claim 2 is characterized in that The connecting rod mechanism (4) comprises a front connecting rod assembly (40), a rear connecting rod assembly (41), and a connecting rod linkage assembly (42) connecting the front connecting rod assembly (40) and the rear connecting rod assembly (41); The front connecting rod assembly (40) comprises an upper connecting rod (401) hinged to the front enclosure tube (10), a lower connecting rod (402) hinged to the front bottom plate (20), and a top rod (403) whose rear end is directly or indirectly hinged to the rear enclosure tube (11); the lower end of the upper connecting rod (401), the upper end of the lower connecting rod (402), and the front end of the top rod (403) are hinged to each other; The rear connecting rod assembly (41) comprises at least two rear connecting rods (410) arranged in parallel, and the upper and lower ends of the two rear connecting rods (410) are respectively hinged to the rear surrounding tube (11) and the rear bottom plate (21); The connecting rod linkage assembly (42) comprises an active transmission rod (420) synchronously arranged at the end of the front enclosure tube (10), a driven transmission rod (421) being hingedly connected to the free end of the active transmission rod (420), and the other end of the driven transmission rod (421) extending obliquely toward the rear bottom plate (21) and being hingedly connected to the rear connecting rod assembly (41).

5. The foldable sleeping box support according to claim 4 is characterized in that The bearing assembly (2) further comprises an intermediate bottom plate (22), and two sides of the intermediate bottom plate (22) are respectively hinged to the corresponding front bottom plate (20) and rear bottom plate (21); The lower part of the driven transmission rod (421) is hinged to the rear connecting rod assembly (41), the middle bottom plate (22) is hinged with an intermediate connecting rod (422), and the upper end of the intermediate connecting rod (422) is hinged to the lower end of the driven transmission rod (421).

6. The foldable sleeping box support according to claim 3 is characterized in that The support assembly (6) comprises a support arm (61) and a support joint (62), wherein the support joint (62) is arranged at the lower part of the support arm (61), and the support joint (62) comprises a support arm joint block (621), a frame connection joint block (622), and a support joint locking mechanism (623) arranged between the support arm joint block (621) and the frame connection joint block (622), wherein the frame connection joint block (622) is detachably connected to the baby carriage frame (100), and a joint linkage unlocking assembly (60) is arranged between the support joint (62) and the front enclosure tube (10) and the rear enclosure tube (11), and the joint linkage unlocking assembly (60) is configured such that when the front enclosure tube (10) is folded to a preset angle relative to the rear enclosure tube (11), the support joint (62) is unlocked in linkage, so that the rear enclosure tube (11) and the sleeping box bracket are flipped and folded relative to the baby carriage frame (100).

7. The foldable sleeping box support according to claim 6 is characterized in that The support joint locking mechanism (623) comprises a support joint locking tooth block (6231), a support joint tooth groove (6232) and a support joint reset piece (6233); the support arm joint block (621) and the frame connection joint block (622) are both provided with a support joint tooth groove (6232); the support joint locking tooth block (6231) can be simultaneously engaged with the support joint tooth groove (6232) on the support arm joint block (621) and the frame connection joint block (622); the support joint reset piece (6233) is disposed between the support joint locking tooth block (6231) and the frame connection joint block (622); The joint linkage unlocking component (60) comprises a guide slot (601) arranged on the end of the rear enclosure tube (11) and a support joint unlocking block (602) arranged in the support joint (62) for pushing the support joint locking tooth block (6231) away from the support arm joint block (621) of the support joint tooth groove (6232); a joint linkage slider (603) is movably arranged in the guide slot (601); a flexible linkage member (604) is arranged between the support joint unlocking block (602) and the joint linkage slider (603); mutually abutting and matching support joint unlocking inclined surfaces (605) are arranged between the support joint unlocking block (602) and the opposite sides of the support arm joint block (621); and a support joint unlocking protrusion (606) is arranged on the end of the front enclosure tube (10) for pushing the joint linkage slider (603) to slide when the front enclosure tube (10) is folded to a preset angle relative to the rear enclosure tube (11).

8. The foldable sleeping box support according to claim 6 or 7, characterized in that The support arm (61) can be raised and lowered relative to the support joint (62).

9. The foldable sleeping box support according to claim 1, characterized in that The invention also comprises a support rod (7), the end of which is pivotally connected to the end of the front enclosure tube (10), and a support rod locking mechanism (8) for locking the support rod (7) relative to the front enclosure tube (10) is provided between the support rod (7) and the front enclosure tube (10), the support rod locking mechanism (8) being configured to be linked with the enclosure tube unlocking assembly (5) and the enclosure tube locking assembly (3) accordingly, and after the enclosure tube unlocking assembly (5) is first linked with the support rod locking mechanism (8) to perform an unlocking action, the support rod locking mechanism (8) is then linked with the enclosure tube locking assembly (3) to perform an unlocking action.

10. The foldable sleeping box support according to claim 9, characterized in that A support rod unlocking assembly (9) is provided at the end of the support rod (7) for independently releasing the locked state of the support rod (7) by means of a linkage support rod locking mechanism (8). The support rod unlocking assembly (9) comprises a support rod unlocking member (90) movably provided at the end of the support rod (7) and capable of performing an unlocking action of the support rod locking mechanism (8) and a support rod resetting member (91) for resetting the support rod unlocking member (90).

11. The foldable sleeping box support according to claim 9, characterized in that The support rod locking mechanism (8) comprises a support rod locking block (81) for locking the support rod (7) relative to the front enclosure tube (10); the enclosure tube locking assembly (3) comprises a chuck (32) for locking the front enclosure tube (10) relative to the rear enclosure tube (11); the support rod locking block (81) can act on the chuck (32) to move axially away from the end of the front enclosure tube (10); the enclosure tube unlocking assembly (5) comprises a pressure plate (50) rotatably matched with the end of the front enclosure tube (10); a plurality of first inclined surfaces (53) are formed on the pressure plate (50); and the front enclosure tube (10) is locked. (10) The end portion is provided with a plurality of second inclined surfaces (54) for abutting and cooperating with the first inclined surface (53) when the pressure plate (50) rotates, so that the pressure plate (50) moves axially and pushes the support rod locking block (81) and the chuck (32) to correspondingly release the locking state of the support rod (7) and the front enclosure tube (10), and the minimum stroke for the axial movement of the support rod locking block (81) to release the locking state of the support rod (7) is L1, and the minimum stroke for the axial movement of the chuck (32) to release the locking state of the front enclosure tube (10) is L2, so: L2>L1.

12. The foldable sleeping box support according to claim 11, characterized in that The support rod locking mechanism (8) also includes a support rod slot (80) provided on the end of the support rod (7) and a limit through hole (82) provided on the end of the front enclosure tube (10); one end of the support rod locking block (81) abuts against the chuck (32); a limit slot (83) is provided on the inner side of the limit through hole (82) along the circumferential direction; and a support rod locking tooth (84) is provided on the support rod locking block (81) that can be engaged with the support rod slot (80) and the limit slot (83) at the same time; The enclosure tube unlocking assembly (5) further comprises a handle (51) provided on the front enclosure tube (10) or the rear enclosure tube (11) and a flexible connecting member (52) provided between the handle (51) and the pressure plate (50) for pulling the pressure plate (50) to rotate; A support rod unlocking linkage part (85) is provided on the support rod locking block (81), and two sides of the support rod unlocking linkage part (85) are respectively abutted against the chuck (32) and the pressure plate (50), and when the pressure plate (50) is rotated by the flexible connecting member (52) to generate axial movement, the support rod unlocking linkage part (85) drives the support rod locking block (81) and the abutting chuck (32) to move axially accordingly, thereby successively releasing the locking state of the support rod (7) and the front enclosure tube (10).

13. The foldable sleeping box support according to claim 1, characterized in that The enclosure tube locking assembly (3) comprises a rear rotating part (30) arranged at the end of the rear enclosure tube (11), and a front rotating part (31) arranged at the end of the front enclosure tube (10). The front rotating part (31) and the rear rotating part (30) are rotatably connected via a pivot axis a (200). A chuck (32) is provided on the front rotating part (31) and the rear rotating part (30). A plurality of latching teeth (34) are formed on the chuck (32) in the circumferential direction. A front latching groove (35) is formed on the front rotating part (31), and a front latching groove (35) is formed on the rear rotating part (30). The rear locking groove (36) is provided between the chuck (32) and the rear rotating part (30), and an elastic member (33) is provided for elastically acting on the chuck (32) so that the locking teeth (34) are kept locked into the front locking groove (35) and the rear locking groove (36) at the same time to limit the front rotating part (31) from rotating relative to the rear rotating part (30); the surrounding tube unlocking assembly (5) is connected to the chuck (32) and can drive the chuck (32) to axially displace and compress the elastic member (33) so that the locking teeth (34) are separated from the front locking groove (35); The surrounding tube unlocking assembly (5) comprises a pressure plate (50) rotatably matched with the front rotating part (31), a handle (51) provided on the front surrounding tube (10) or the rear surrounding tube (11), and a flexible connecting member (52) provided between the handle (51) and the pressure plate (50), a plurality of first inclined surfaces (53) being formed on the pressure plate (50), and a plurality of second inclined surfaces (54) being provided on the front rotating part (31) for abutting and matching with the first inclined surfaces (53) when the pressure plate (50) rotates, thereby causing the pressure plate (50) to move axially.

14. A carrier, using the foldable sleeping box support as claimed in claim 6 or 7, characterized in that The invention comprises a baby carriage frame (100) having a frame joint (101), wherein the baby carriage frame (100) is placed in an unfolded and locked state or an unlocked and foldable state through the frame joint (101), and a connection adapter (102) for detachably connecting to a frame connection joint block (622) is provided on the baby carriage frame (100).

15. A carrier according to claim 14, characterized in that A frame unlocking member (103) for unlocking the frame joint (101) to fold the baby carriage frame (100) is provided on the frame joint (101), and a frame unlocking trigger member (104) is provided on the support arm joint block (621) for unlocking the frame joint (101) when the rear enclosure tube (11) and the support arm joint block (621) are unlocked and flipped to a preset angle relative to the baby carriage frame (100) to link the frame unlocking member (103) to release the locked state of the frame joint (101).

Images