Position adjustment device, child safety carrier, child safety seat and stroller

Abstract

This invention discloses a position adjustment device, a child safety carrier, a child safety seat, and a stroller. The position adjustment device has two connecting shafts that can be connected to a first external device; a support arm assembly extends from the first frame body and can be connected to a second external device; the two connecting shafts and two support arm assemblies are alternately distributed; a pull-out adjustment assembly can drive a locking member to move, so that the locking member has a locked position for locking the relative position of the first frame body and the second frame body, and an unlocked position for unlocking the relative position of the first frame body and the second frame body; when in the unlocked position, the pull-out adjustment assembly can drive the support frame to slide relative to the first frame body; when in the locked position, one support arm assembly distributed on one side of the two connecting shafts abuts against the adjacent connecting shaft. This allows adjustment of the relative position of the first and second external devices without disengaging the connection between them.

Description

Technical Field

[0001] This invention relates to the field of children's products and equipment, and in particular to position adjustment devices, child safety carriers, child safety seats, and strollers. Background Technology

[0002] To meet the travel needs of parents and children, child safety carriers are generally installed on strollers as part of the stroller or on child safety seats as part of the child safety seat. For child safety seats, to facilitate removing the child from the car, existing technology typically includes a rotating adjustment mechanism in the base structure. This allows the carrier to be rotated to face the windshield, away from the windshield, or towards one of the vehicle's side doors. While facing one door makes it easy to remove the child, when facing another door, there is still a gap between the carrier and the door, requiring an adult to bend over and enter the vehicle to retrieve the child, which is inconvenient. Therefore, there is a need for a position adjustment device that allows the child safety carrier, mounted on the child safety seat, to be moved closer to the car door without disengaging from the child safety seat, thus improving the ease of retrieving the child.

[0003] The position adjustment devices in the existing technology usually use one of the following to move one device relative to another: a slide rail and a roller screw mechanism, a linear motor and a cylinder. This is not suitable for moving the child safety carrier installed on the child safety seat alone, and it will cause energy consumption. Summary of the Invention

[0004] The purpose of this invention is to provide a position adjustment device, a child safety carrier, a child safety seat, and a stroller, in order to solve the problem that the position adjustment device in the prior art is not suitable for moving the child safety carrier that is set on the child safety seat alone, and that it causes energy consumption.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A position adjustment device includes a connecting frame, a supporting frame, and a sliding locking mechanism disposed between the connecting frame and the supporting frame;

[0007] The connecting frame includes a first frame body and two connecting shafts that are spaced apart along the length of the first frame body and fixedly connected to the first frame body. Both connecting shafts can be connected to a first external device.

[0008] The support frame includes a second frame body slidably disposed on the first frame body, and two support arm groups fixedly connected to the second frame body. The support arm groups extend out of the first frame body and can be connected to a second external device. The two connecting shafts and the two support arm groups are alternately distributed along the length direction of the first frame body.

[0009] The sliding locking mechanism includes a pull-out adjustment assembly and a locking member distributed between the first frame body and the second frame body. The pull-out adjustment assembly can drive the locking member to move, so that the locking member has a locking position for locking the relative positions of the first frame body and the second frame body, and an unlocking position for unlocking the relative positions of the first frame body and the second frame body. When the locking member is in the unlocking position, the pull-out adjustment assembly can drive the support frame to slide relative to the first frame body along the length direction of the first frame body. When the locking member is in the locking position, a support arm assembly distributed on one side of the two connecting shafts abuts against an adjacent connecting shaft along the length direction of the first frame body.

[0010] Preferably, the pull-out adjustment assembly includes a pull-out adjustment member slidably disposed between the first frame body and the second frame body, and a first elastic member, wherein the first elastic member is distributed between the pull-out adjustment member and the second frame body, and its two ends are respectively connected to the pull-out adjustment member and the second frame body.

[0011] The pull-out adjustment component can cause the locking component to retract into the second frame body along the first direction, so that the locking component is in the unlocked position. The elastic restoring force of the first elastic component can cause the locking component to partially extend out of the second frame body along the second direction and partially insert into the first frame body, so that the locking component is in the locked position. When the locking component retracts into the second frame body, the pull-out adjustment component can cause the first elastic component and the support frame to slide synchronously relative to the first frame body along the length direction of the first frame body. The first direction is parallel to and opposite to the second direction.

[0012] Preferably, the pull-out adjustment component includes an unlocking part, which has a central hole extending along the first direction and two guide slopes spaced apart on both sides of the central hole along a third direction. The first direction is perpendicular to the third direction, and the length direction of the first frame body is at an angle to the plane containing the first direction and the third direction.

[0013] The first frame body is provided with a locking hole, and the second frame body is provided with a limiting part inserted into the central hole. The limiting part is recessed along the first direction and has a locking groove that can communicate with the locking hole. The locking member includes a locking part and two adjusting parts connected to the locking part. The locking groove and the locking hole are used to accommodate the locking part. The two adjusting parts are correspondingly arranged with the two guide slopes. The adjusting parts extend out of the locking groove along the third direction and overlap the guide slope.

[0014] The pull-out adjustment component can drive the guide slope to push the adjustment part to move along the first direction, so that the locking part is placed in the locking groove; the elastic restoring force of the first elastic component can drive the guide slope to guide the adjustment part to move along the second direction, so that the locking part extends out of the locking groove and is inserted into the locking hole.

[0015] Preferably, the limiting part is further recessed with two elongated guide holes spaced apart along the third direction, both of which are connected to the locking groove, and the length direction of the elongated guide holes is parallel to the first direction.

[0016] The two elongated guide holes are provided one-to-one with the two adjustment parts, and the adjustment parts pass through the elongated guide holes along the third direction and overlap the guide slope.

[0017] Preferably, the limiting part is provided with a first limiting surface and a second limiting surface that are spaced apart along the length direction of the first frame body. When the locking member is in the locked position, the first limiting surface abuts against the first inner wall of the central hole. When the locking member is in the unlocked position, the second limiting surface abuts against the second inner wall of the central hole.

[0018] Preferably, the pull-out adjustment component further includes a connecting part and a first handle part, and along the length direction of the first frame body, the two ends of the connecting part are respectively connected to the first handle part and the unlocking part;

[0019] The first elastic element is distributed between the connecting part and the second frame body, and its two ends are respectively connected to the connecting part and the second frame body; the first handle is located outside the first frame body and the second frame body, and along the length direction of the first frame body, the first handle is distributed on the same side as a support arm group distributed on one side of the two connecting shafts.

[0020] Preferably, the position adjustment device further includes an identification component disposed above the second frame body. The identification component includes an identification piece rotatably connected to the second frame body. Along the length direction of the second frame body, the identification piece is distributed on the same side as a support arm assembly distributed on one side of the two connecting shafts.

[0021] The second frame body has a first display hole at one end along its length, and the marking member has a first mark and a second mark spaced apart at one end along the rotation direction, and a guide abutment surface at the other end. When the guide abutment surface abuts against the outer peripheral surface of a connecting shaft adjacent to it, the first mark is displayed in the first display hole. When the guide abutment surface separates from a connecting shaft adjacent to it, the second mark is displayed in the first display hole.

[0022] Preferably, the marking component further includes a second elastic member. The end face of the marking member near the second frame body is recessed with a first limiting groove. The first limiting groove is located between the connection point where the marking member is rotatably connected to the second frame body and the guide abutment surface. The second frame body is provided with a second limiting groove that communicates with the first limiting groove. The second elastic member is distributed in the first limiting groove and the second limiting groove, and both ends of the second elastic member are respectively connected to the bottom wall of the first limiting groove and the bottom wall of the second limiting groove.

[0023] The child safety carrier includes a safety carrier body and the aforementioned position adjustment device. The second external device is the safety carrier body, and the support arm assembly is detachably connected to the safety carrier body.

[0024] A child safety seat includes a base structure and the aforementioned child safety carrier, wherein the first external device is the base structure, and the base structure is detachably connected to the connecting shaft.

[0025] Preferably, the base shell of the base structure is provided with a rotating locking handle. The rotating locking handle is distributed along the length direction of the base structure at the front end of the base shell and is slidably disposed on the base shell. The turntable of the base structure is rotatably connected to the base shell, and the turntable is detachably connected to the connecting shaft.

[0026] The outer peripheral wall of the turntable is provided with two working limit grooves evenly spaced along the circumference, and the rotary locking handle can be inserted into one of the working limit grooves.

[0027] Preferably, the bottom wall of the safety basket body is provided with a first pressing part, the turntable is provided with two elastic limiting posts that penetrate the turntable along the thickness direction of the turntable, and the base shell is provided with two limiting ears at intervals.

[0028] The two elastic limiting posts and the two working limiting slots are arranged in a one-to-one correspondence. When the rotary locking handle is inserted into one of the working limiting slots, the first pressing part presses down on one of the elastic limiting posts to extend into the base shell. When the working limiting slot is rotated by a set angle in the first clockwise direction, the elastic limiting post abuts against one of the limiting ears in the first clockwise direction. When the working limiting slot is rotated by a set angle in the second clockwise direction, the elastic limiting post abuts against the other limiting ear in the second clockwise direction. The first clockwise direction and the second clockwise direction are opposite.

[0029] The stroller includes a stroller body and the aforementioned child safety carrier, wherein the safety carrier body is detachably connected to the stroller body.

[0030] The beneficial effects of this invention are:

[0031] The present invention aims to provide a position adjustment device, a child safety carrier, a child safety seat, and a child stroller. The position adjustment device includes a connecting frame, a support frame, and a sliding locking mechanism disposed between the connecting frame and the support frame. When it is necessary to adjust the relative position of the first external device and the second external device along the length of the first frame body, pull the pull-out adjustment component along the length of the first frame body. This causes the pull-out adjustment component to move the locking member and unlock the relative position of the first frame body and the second frame body. After the relative position of the first frame body and the second frame body is unlocked, continue to pull the pull-out adjustment component along the length of the first frame body. This causes the pull-out adjustment component to move the support frame and the second external device connected to the support frame synchronously along the length of the first frame body. This allows the relative position of the first external device and the second external device along the length of the first frame body to be adjusted without disengaging the connection between the two external devices. This is convenient to operate and avoids energy consumption. When it is necessary to return the second external device to its original position, push the pull-out adjustment component along the length of the first frame body. This causes the pull-out adjustment component to move the support frame and the second external device connected to the support frame synchronously along the length of the first frame body until a support arm assembly distributed on one side of the two connecting shafts and an adjacent connecting shaft come into contact. At this time, the pull-out adjustment component moves the locking member to lock the relative position of the first frame body and the second frame body.

[0032] Therefore, this position adjustment device can adjust the relative position of the first external device and the second external device along the length direction of the first frame body without severing the connection between the first external device and the second external device, and it is easy to operate and avoids energy consumption. Attached Figure Description

[0033] Figure 1This is a schematic diagram of the position adjustment device from a first perspective when the locking member is in the locked position, according to a specific embodiment of the present invention.

[0034] Figure 2 This is a schematic diagram of the position adjustment device from a second perspective when the locking member is in the locked position, according to a specific embodiment of the present invention.

[0035] Figure 3 This is a schematic diagram of the position adjustment device when the locking member is in the unlocked position according to a specific embodiment of the present invention;

[0036] Figure 4 This is a cross-sectional view of the position adjustment device when the locking member is in the locked position according to a specific embodiment of the present invention. Figure 1 ;

[0037] Figure 5 This is a cross-sectional view of the position adjustment device when the locking member is in the locked position according to a specific embodiment of the present invention. Figure 2 ;

[0038] Figure 6 This is a partial structural schematic diagram of the position adjustment device provided in a specific embodiment of the present invention;

[0039] Figure 7 This is a schematic diagram of the structure of the identifier of the position adjustment device provided in a specific embodiment of the present invention;

[0040] Figure 8 This is a schematic diagram of the structure of a child safety carrier equipped with a position adjustment device provided in a specific embodiment of the present invention;

[0041] Figure 9 This is a structural schematic diagram of a child safety seat provided in a specific embodiment of the present invention. Figure 1 ;

[0042] Figure 10 This is a partial structural diagram of a child safety seat provided in a specific embodiment of the present invention. Figure 1 ;

[0043] Figure 11 This is a partial structural diagram of a child safety seat provided in a specific embodiment of the present invention. Figure 2 ;

[0044] Figure 12 This is a partial structural diagram of a child safety seat provided in a specific embodiment of the present invention. Figure 3 ;

[0045] Figure 13 This is a partial structural diagram of a child safety seat when the locking element is in the locked position, according to a specific embodiment of the present invention;

[0046] Figure 14 This is a structural schematic diagram of a child safety seat provided in a specific embodiment of the present invention. Figure 2 ;

[0047] Figure 15 This is a partial structural diagram of a child safety seat when the locking element is in the unlocked position, according to a specific embodiment of the present invention;

[0048] Figure 16 This is a structural schematic diagram of a child safety seat provided in a specific embodiment of the present invention. Figure 3 ;

[0049] Figure 17 This is a partial structural diagram of the base structure provided in a specific embodiment of the present invention;

[0050] Figure 18 This is a partial cross-sectional view of a child safety seat provided in a specific embodiment of the present invention;

[0051] Figure 19 yes Figure 18 A partial view at point A;

[0052] Figure 20 This is a partial structural diagram of the base shell of a child safety seat provided in a specific embodiment of the present invention.

[0053] In the picture:

[0054] 1. Connecting frame; 11. First frame body; 111. Locking hole; 112. Sliding limit block; 113. Second pressing part; 12. Connecting shaft;

[0055] 2. Support frame; 21. Second frame body; 211. Limiting part; 2111. Locking groove; 2112. Long guide hole; 2113. Second limiting surface; 212. First display hole; 213. Second limiting groove; 22. Support arm;

[0056] 3. Pull-out adjustment assembly; 31. Pull-out adjustment component; 311. Unlocking part; 3111. Center hole; 3112. Guide slope; 3113. First inner sidewall; 3114. Second inner sidewall; 312. Connecting part; 313. First handle part; 314. Overlap edge; 32. First elastic element;

[0057] 4. Locking component; 41. Locking part; 42. Adjusting part;

[0058] 5. Identification component; 51. Identification piece; 511. First identification; 512. Second identification; 513. Guide contact surface; 514. First limiting groove; 52. Limiting plate;

[0059] 6. Safety basket body; 61. Accommodation space; 62. First pressing part;

[0060] 7. Base structure;

[0061] 71. Base shell; 711. Limiting ear; 7111. Ear part; 712. Second display hole;

[0062] 72. Rotary locking handle; 721. Insertion part; 722. Second handle part; 7221. Handle groove; 7222. Third mark; 7223. Fourth mark;

[0063] 73. Turntable; 731. Working limit slot;

[0064] 74. The third elastic element;

[0065] 75. Elastic limiting post; 751. Limiting post; 752. Fourth elastic element. Detailed Implementation

[0066] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0067] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0068] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0069] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0070] This invention provides a position adjustment device, such as... Figure 1-6 As shown, the position adjustment device includes a connecting frame 1, a support frame 2, and a sliding locking mechanism disposed between the connecting frame 1 and the support frame 2. The connecting frame 1 includes a first frame body 11 and two connecting shafts 12 spaced apart along the length of the first frame body 11 and fixedly connected to it. Both connecting shafts 12 can be connected to a first external device. The support frame 2 includes a second frame body 21 slidably disposed on the first frame body 11 and two support arm assemblies fixedly connected to the second frame body 21. The support arm assemblies extend out of the first frame body 11 and can be connected to a second external device. The two connecting shafts 12 and the two support arm assemblies are alternately distributed along the length of the first frame body 11. The sliding locking mechanism includes components distributed between the first frame body 11 and the second frame body 21. The pull-out adjustment component 3 and the locking component 4 are located between the first frame body 11 and the second frame body 21. The pull-out adjustment component 3 can drive the locking component 4 to move so that the locking component 4 has a locked position that locks the relative position of the first frame body 11 and the second frame body 21, and an unlocked position that unlocks the relative position of the first frame body 11 and the second frame body 21. When the locking component 4 is in the unlocked position, the pull-out adjustment component 3 can drive the support frame 2 to slide relative to the first frame body 11 along the length direction of the first frame body 11. When the locking component 4 is in the locked position, a support arm group distributed on one side of the two connecting shafts 12 and an adjacent connecting shaft 12 abut against each other along the length direction of the first frame body 11.

[0071] like Figure 1-6As shown, when it is necessary to adjust the relative position of the first external device and the second external device along the length direction of the first frame body 11, the pull-out adjustment component 3 is pulled along the length direction of the first frame body 11, causing the pull-out adjustment component 3 to move the locking piece 4 and unlock the relative position of the first frame body 11 and the second frame body 21. After the relative position of the first frame body 11 and the second frame body 21 is unlocked, the pull-out adjustment component 3 is pulled along the length direction of the first frame body 11 again, causing the pull-out adjustment component 3 to move the support frame 2 and the second external device connected to the support frame 2 synchronously along the length direction of the first frame body 11, so as to achieve the effect of not releasing the first external device and the second external device. Based on the connection relationship, the relative positions of the first external device and the second external device along the length direction of the first frame body 11 can be adjusted, and the operation is convenient and energy consumption is avoided. When the second external device needs to be returned to its original position, the pull-out adjustment component 3 is pushed along the length direction of the first frame body 11, so that the pull-out adjustment component 3 drives the support frame 2 and the second external device connected to the support frame 2 to move synchronously along the length direction of the first frame body 11 until a support arm group distributed on one side of the two connecting shafts 12 and an adjacent connecting shaft 12 abut. At this time, the pull-out adjustment component 3 drives the locking member 4 to move so that the locking member 4 locks the relative positions of the first frame body 11 and the second frame body 21.

[0072] Therefore, the position adjustment device can adjust the relative position of the first external device and the second external device along the length direction of the first frame body 11 without disconnecting the connection between the first external device and the second external device, and it is easy to operate and avoids energy consumption.

[0073] Specifically, such as Figure 2 and Figure 3 As shown, the portions of the connecting shaft 12 extending out of the first frame body 11 are used to connect with the first external device.

[0074] Specifically, such as Figure 1-5 As shown, the support arm assembly includes two support arms 22, which are spaced apart at both ends of the second frame body 21 along a third direction; the support arms 22 extend out of the first frame body 11 and are used to connect with the second external device.

[0075] Specifically, such as Figure 1 and Figure 2-4 As shown, two sliding limit blocks 112 are spaced apart on the first frame body 11. Along the third direction, the two sliding limit blocks 112 abut against the two ends of the upper surface of the second support frame 2. This arrangement prevents the support frame 2 from detaching from the connecting frame 1 along the first direction, thus limiting the second frame body 21 to slide only relative to the first frame body 11 along the length direction of the first frame body 11.

[0076] Specifically, the length direction of the first frame body 11 is parallel to the length direction of the second frame body 21. Specifically, in this embodiment, as... Figure 1-5 As shown, both the first frame body 11 and the second frame body 21 are arc-shaped along their length. In other embodiments, the first frame body 11 and the second frame body 21 may be rectangular along their length.

[0077] Among them, such as Figure 1-6 As shown, the pull-out adjustment assembly 3 includes a pull-out adjustment member 31 slidably disposed between the first frame body 11 and the second frame body 21, and a first elastic member 32. The first elastic member 32 is distributed between the pull-out adjustment member 31 and the second frame body 21, and its two ends are respectively connected to the pull-out adjustment member 31 and the second frame body 21. The pull-out adjustment member 31 can drive the locking member 4 to retract into the second frame body 21 along the first direction, so that the locking member 4 is in the unlocked position. The elastic restoring force of the first elastic member 32 can drive the locking member 4 to partially extend out of the second frame body 21 along the second direction and partially insert into the first frame body 11, so that the locking member 4 is in the locked position. When the locking member 4 is retracted into the second frame body 21, the pull-out adjustment member 31 can drive the locking member 4, the first elastic member 32 and the support frame 2 to slide synchronously relative to the first frame body 11 along the length direction of the first frame body 11. The first direction and the second direction are parallel and opposite.

[0078] like Figure 1-6As shown, when it is necessary to adjust the relative position of the first external device and the second external device along the length direction of the first frame body 11, the pull-out adjustment component 31 is pulled along the length direction of the first frame body 11, causing the pull-out assembly to drive the locking component 4 to retract into the second frame body 21 along the first direction, thereby unlocking the relative position of the first frame body 11 and the second frame body 21. After the relative position of the first frame body 11 and the second frame body 21 is unlocked, the pull-out adjustment component 31 is pulled along the length direction of the first frame body 11 again, causing the pull-out adjustment component 31 to drive the locking component 4, the first elastic component 32, the support frame 2, and the second external device connected to the support frame 2 to move synchronously along the length direction of the first frame body 11, so as to achieve the adjustment of the first external device and the second external device along the length direction of the first frame body 11 without disengaging the connection relationship between the first external device and the second external device. The relative positions along the length direction of 1; it can be understood that during the process of pulling the pull-out adjustment component 31 to unlock the relative positions of the first frame body 11 and the second frame body 21, the first elastic component 32 is stretched. When the second external device is to be returned to its original position, the pull-out adjustment component 31 is pushed along the length direction of the first frame body 11, causing the pull-out adjustment component 3 to move synchronously along the length direction of the first frame body 11, along with the locking component 4, the first elastic component 32, the support frame 2, and the second external device connected to the support frame 2, until a support arm assembly distributed on one side of the two connecting shafts 12 and an adjacent connecting shaft 12 abut against each other. At this time, the elastic restoring force of the first elastic component 32 causes the locking component 4 to move along the second direction, causing the locking component 4 to extend out of the second frame body 21 and partially insert into the first frame body 11, thereby locking the relative positions of the first frame body 11 and the second frame body 21. The first elastic component 32 is a spring.

[0079] Specifically, such as Figure 1-6As shown, the pull-out adjustment component 31 includes an unlocking part 311, which has a central hole 3111 extending along a first direction and two guide slopes 3112 spaced apart on both sides of the central hole 3111 along a third direction. The first direction is perpendicular to the third direction, and the length direction of the first frame body 11 forms an angle with the plane containing the first direction and the third direction. The first frame body 11 has a locking hole 111, and the second frame body 21 has a limiting part 211 inserted into the central hole 3111. The limiting part 211 has a locking groove 2111 recessed along the first direction that can communicate with the locking hole 111. The locking component 4 includes a locking part 41 and a locking groove 42. The two adjusting parts 42 connected to the fixed part 41, the locking groove 2111 and the locking hole 111 are used to accommodate the locking part 41. The two adjusting parts 42 are arranged one-to-one with the two guide slopes 3112. The adjusting part 42 extends out of the locking groove 2111 along the third direction and overlaps with the guide slope 3112. The pull-out adjusting member 31 can drive the guide slope 3112 to push the adjusting part 42 to move along the first direction, so that the locking part 41 is distributed in the locking groove 2111. The elastic restoring force of the first elastic member 32 can drive the guide slope 3112 to guide the adjusting part 42 to move along the second direction, so that the locking part 41 partially extends out of the locking groove 2111 and is inserted into the locking hole 111. Understandably, when the unlocking part 311 is pulled along the length direction of the first frame body 11 by the pull-out adjustment member 31, the guide slope 3112 drives the adjustment part 42 of the locking member 4 to move along the first direction, thereby driving the locking part 41 to move synchronously along the first direction, so that the locking part 41 can be completely accommodated in the locking groove 2111. When the locking part 41 is completely accommodated in the locking groove 2111, the relative position of the first frame body 11 and the second frame body 21 is unlocked; when the pull-out adjustment member 31 is pushed along the length direction of the first frame body 11, the adjustment part 42 of the locking member 4 is moved along the first direction, so that the two... A support arm assembly on one side of the connecting shaft 12 abuts against an adjacent connecting shaft 12. At this time, the elastic restoring force of the first elastic element 32 drives the pull-out adjustment element 31 to move, so that the two guide slopes 3112 on the unlocking part 311 guide the adjustment part 42 to move in the second direction, thereby driving the locking part 41 to move in the second direction, so that the locking part 41 partially extends out of the locking groove 2111 and is inserted into the locking hole 111. When the locking part 41 partially extends out of the locking groove 2111 and is inserted into the locking hole 111, the relative position of the first frame body 11 and the second frame body 21 is locked.

[0080] Specifically, in this embodiment, such as Figure 6 As shown, the central hole 3111 is a square hole. This is designed so that two guide ramps 3112 can be provided on the unlocking part 311.

[0081] Specifically, such as Figure 4-6As shown, the limiting part 211 is also recessed with two elongated guide holes 2112 spaced apart along a third direction. Both elongated guide holes 2112 are connected to the locking groove 2111, and the length direction of the elongated guide holes 2112 is parallel to the first direction. The two elongated guide holes 2112 are correspondingly provided with two adjusting parts 42. The adjusting parts 42 pass through the elongated guide holes 2112 along the third direction and overlap with the guide slope 3112. By setting the length direction of the elongated guide holes 2112 to be parallel to the first direction, during the process of pulling the pull-out adjusting member 31, the elongated guide holes 2112 and the guide slope 3112 cooperate to push the locking member 4 into the locking groove 2111 along the first direction. During the process of the elastic restoring force of the first elastic member 32 pushing the pull-out adjusting member 31, the elongated guide holes 2112 and the guide slope 3112 cooperate to release the locking member 4 partially out of the locking groove 2111 and insert it into the locking hole 111 along the second direction.

[0082] Preferably, the locking part 41 is provided with a third limiting surface. When the locking part 41 is partially inserted into the locking hole 111, the third limiting surface abuts against the upper end surface of the first frame body 11 along the second direction. This improves the reliability of the sliding locking mechanism.

[0083] More specifically, such as Figure 4-6 As shown, the limiting part 211 is provided with a first limiting surface and a second limiting surface 2113 that are spaced apart along the length direction of the first frame body 11. When the locking member 4 is in the locked position, the first limiting surface abuts against the first inner sidewall 3113 of the center hole 3111. When the locking member 4 is in the unlocked position, the second limiting surface 2113 abuts against the second inner sidewall 3114 of the center hole 3111. When the locking member 4 is in the locked position, the first limiting surface abuts against the first inner sidewall 3113 of the center hole 3111, so as to limit the movement limit of the first elastic member 32 to drive the pull-out adjustment member 31, so as to facilitate the subsequent unlocking of the locking member 4 by the guide slope 3112 on the pull-out adjustment member 31; when the locking member 4 is in the unlocked position, the second limiting surface 2113 abuts against the second inner sidewall 3114 of the center hole 3111, so that when the locking member 4 is in the unlocked position, the pull-out adjustment member 31 can effectively drive the first elastic member 32, the support frame 2 and the second external device connected to the support frame 2 to move synchronously along the length direction of the first frame body 11.

[0084] Preferably, in this embodiment, such as Figure 1 and Figure 3-5As shown, along the first direction, the limiting part 211 extends out of the upper end face of the second frame body 21, and a connecting shaft 12 distributed between the two support arm assemblies can abut against the limiting part 211 along the length direction of the second frame body 21. This arrangement ensures that when the pulling adjustment member 31 drives the locking member 4 to unlock the relative position of the first frame body 11 and the second frame body 21, and the pulling adjustment member 31 drives the locking member 4, the first elastic member 32, the support frame 2, and the second external device connected to the support frame 2 to move synchronously along the length direction of the first frame body 11, the connecting shaft 12 distributed between the two support arm assemblies can abut against the limiting part 211. When the connecting shaft 12 distributed between the two support arm assemblies abuts against the limiting part 211, it can no longer drive the locking member 4, the first elastic member 32, the support frame 2, and the second external device connected to the support frame 2 to move synchronously along the length direction of the first frame body 11. This limits the range of movement of the pull-out adjustment component 31, which drives the locking component 4, the first elastic component 32, the support frame 2, and the second external device connected to the support frame 2 to move synchronously along the length direction of the first frame body 11. Specifically, in this embodiment, as... Figure 3 As shown, when a connecting shaft 12 distributed between the two support arm assemblies abuts against the limiting part 211 along the length direction of the second frame body 21, the limiting block 112 abuts against a support arm assembly distributed between the two connecting shafts 12. This arrangement can further enhance the effect of limiting the range of movement of the pull-out adjustment member 31, the locking member 4, the first elastic member 32, the support frame 2, and the second external device connected to the support frame 2 along the length direction of the first frame body 11.

[0085] In other embodiments, a connecting shaft 12 distributed between the two support arm groups may be provided, capable of abutting against a support arm group distributed between the two connecting shafts 12 along the length direction of the second frame body 21. In other embodiments, a limiting rod may be provided on the upper end surface of the second frame body 21, and the limiting rod is distributed between the two support arm groups along the length direction of the second frame body 21, and the limiting rod can abut against a connecting shaft 12 distributed between the two support arm groups. This also limits the range of movement of the pull-out adjustment member 31, which drives the locking member 4, the first elastic member 32, the support frame 2, and the second external device connected to the support frame 2 to move synchronously along the length direction of the first frame body 11.

[0086] Among them, such as Figure 1-6As shown, the pull-out adjustment component 31 also includes a connecting portion 312 and a first handle portion 313. Along the length direction of the first frame body 11, the two ends of the connecting portion 312 are respectively connected to the first handle portion 313 and the unlocking portion 311. A first elastic member 32 is distributed between the connecting portion 312 and the second frame body 21, and its two ends are respectively connected to the connecting portion 312 and the second frame body 21. The first handle portion 313 is located outside the first frame body 11 and the second frame body 21, and along the length direction of the first frame body 11, the first handle portion 313 is distributed on the same side as a support arm assembly distributed on one side of the two connecting shafts 12. This arrangement allows the pull-out adjustment component 31 to be pulled or pushed along the length direction of the first frame body 11 via the first handle portion 313.

[0087] Specifically, such as Figure 5 and Figure 6 As shown, the guide slope 3112 and the connecting part 312 are distributed at an obtuse angle. This arrangement allows the elongated guide hole 2112 and the guide slope 3112 to effectively push the locking member 4 into the locking groove 2111 along the first direction, or to partially release the locking member 4 out of the locking groove 2111 and insert it into the locking hole 111 along the second direction.

[0088] Preferably, the connecting part 312, the first handle part 313, and the unlocking part 311 of the pull-out adjustment component 31 are integrally formed. This design can improve the structural strength of the pull-out adjustment component 31, reduce the number of parts, and facilitate assembly, disassembly, and later maintenance.

[0089] Specifically, such as Figure 6 As shown, along the first direction, the upper ends of both the connecting part 312 and the unlocking part 311 are provided with overlapping edges 314, which slide and overlap with the second frame body 21 along the moving direction of the pull-out adjustment member 31. This arrangement allows the pull-out adjustment member 31 to slide and overlap with the second frame body 21 along the length direction of the second frame body 21, thereby improving the operational reliability of the pull-out adjustment member 31.

[0090] Among them, such as Figure 1-7As shown, the position adjustment device also includes an identification component 5 disposed above the second frame body 21. The identification component 5 includes an identification piece 51 rotatably connected to the second frame body 21. Along the length direction of the second frame body 21, the identification piece 51 is distributed on the same side as a support arm assembly distributed on one side of the two connecting shafts 12. One end of the second frame body 21 along the length direction is provided with a first display hole 212. One end of the identification piece 51 is provided with a first identification 511 and a second identification 512 spaced apart along the rotation direction. The other end is provided with a guide abutment surface 513. When the guide abutment surface 513 abuts against the outer peripheral surface of an adjacent connecting shaft 12, the first identification 511 is displayed in the first display hole 212. When the guide abutment surface 513 and the adjacent connecting shaft 12 are separated, the second identification 512 is displayed in the first display hole 212. Specifically, when the locking member 4 is in the locked position, the first indicator 511 is displayed in the first display hole 212; when the locking member 4 is in the unlocked position, and as the pull-out adjustment member 31 moves the locking member 4, the first elastic member 32, the support frame 2, and the second external device connected to the support frame 2 synchronously along the length direction of the first frame body 11, the guide contact surface 513 guides the indicator 51 to rotate around a fixed axis and causes the second indicator 512 to be displayed in the first display hole 212. This arrangement makes it convenient for the user to observe and confirm the working status of the position adjustment device.

[0091] Specifically, such as Figure 4 As shown, the marking component 5 also includes a second elastic member. A first limiting groove 514 is recessed on the end face of the marking member 51 near the second frame body 21. The first limiting groove 514 is located between the connection point where the marking member 51 is rotatably connected to the second frame body 21 and the guide abutment surface 513. The second frame body 21 has a second limiting groove 213 communicating with the first limiting groove 514. The second elastic member is distributed within the first limiting groove 514 and the second limiting groove 213, and both ends of the second elastic member are respectively connected to the bottom wall of the first limiting groove 514 and the bottom wall of the second limiting groove 213. Specifically, as... Figure 1-7 As shown, when the locking member 4 is in the locked position, the first mark 511 is displayed in the first display hole 212, and the second elastic member is compressed. When the locking member 4 is in the unlocked position, and the pull-out adjustment member 31 drives the first elastic member 32, the support frame 2, and the second external device connected to the support frame 2 to move synchronously along the length direction of the first frame body 11, the elastic restoring force of the second elastic member drives the mark 51 to rotate around a fixed axis. The guide contact surface 513 guides the mark 51 to rotate around the fixed axis and drives the second mark 512 to be displayed in the first display hole 212. The second elastic member is a spring.

[0092] Preferably, such as Figure 1-7As shown, the marking assembly 5 also includes a limiting plate 52 connected to the upper part of the second frame body 21. The limiting plates 52 are spaced apart above the marking member 51, and the marking member 51 can abut against the limiting plates 52. This arrangement can limit the rotation range of the marking member 51, so that the second marking 512 can be effectively displayed in the first display hole 212, and also facilitates the guide abutment surface 513 to abut against the outer peripheral surface of the adjacent connecting shaft 12 again.

[0093] The first identifier 511 and the second identifier 512 may be different colors, different symbols, or different characters. The requirement is that the first identifier 511 and the second identifier 512 can be distinguished.

[0094] This invention also provides a child safety carrier, such as Figure 1-6 and Figure 8-16 As shown, the device includes a safety carrier body 6 and the aforementioned position adjustment device. The second external device is the safety carrier body 6, and the support arm assembly is detachably connected to the safety carrier body 6. Specifically, in this embodiment, the first external device is a base structure 7. This configuration allows for adjustment of the relative positions of the safety carrier body 6 and the base structure 7 along the length of the first frame body 11 without severing the connection between them, and is convenient to operate while avoiding energy consumption. Secondly, the detachable connection between the support arm assembly and the safety carrier body 6 facilitates the installation and removal of the position adjustment device from the safety carrier body 6. Specifically, when the safety carrier body 6 is used in a child safety seat, the position adjustment device can be installed on or removed from the safety carrier body 6; when the safety carrier body 6 is used in a stroller, the position adjustment device can be installed on or removed from the safety carrier body 6. Furthermore, the detachable connection between the support arm assembly and the safety carrier body 6 also allows the safety carrier body 6 to function as an independent product. This effectively improves the versatility of the safety basket body 6 and reduces the cost of producing the safety basket body 6.

[0095] Specifically, the support arm 22 of the support arm assembly is detachably connected to the housing of the safety basket body 6 via threaded connection or other means.

[0096] Specifically, such as Figure 8 and Figure 18 As shown, the bottom of the housing of the safety basket body 6 is recessed with a receiving space 61, which is used to receive the aforementioned position adjustment device.

[0097] This invention also provides child safety seats, such as Figure 1-5 and Figure 8-16As shown, the system includes a base structure 7 and the aforementioned child safety carrier. The first external device is the base structure 7, which is detachably connected to the connecting shaft 12. This configuration allows for adjustment of the relative positions of the child safety carrier body 6 and the base structure 7 along the length of the first frame body 11 without severing the connection between them, and is convenient to operate while avoiding energy consumption. Furthermore, the detachable connection between the turntable 73 of the base structure 7 and the connecting shaft 12 facilitates the installation and removal of the child safety carrier from the base structure 7.

[0098] Specifically, such as Figure 9-17 As shown, the base shell 71 of the base structure 7 is provided with a rotating locking handle 72. The rotating locking handle 72 is distributed along the length direction of the base structure 7 at the front end of the base shell 71 and is slidably disposed on the base shell 71. The turntable 73 of the base structure 7 is rotatably connected to the base shell 71, and the turntable 73 is detachably connected to the connecting shaft 12. The outer peripheral wall of the turntable 73 is provided with two working limit grooves 731 evenly spaced along the circumference. The rotating locking handle 72 can be inserted into one of the working limit grooves 731. Specifically, by setting a rotating locking handle 72 distributed along the length of the base structure 7 at the front end of the base shell 71, and two working limiting grooves 731 evenly and spaced along the circumference of the turntable 73 on the outer peripheral wall of the turntable 73, the safety carrier body 6 is locked facing the windshield of the vehicle when the rotating locking handle 72 is inserted into one working limiting groove 731, and locked facing away from the windshield when the rotating locking handle 72 is inserted into the other working limiting groove 731, thus enabling adjustment of the orientation of the child safety carrier body 6. Secondly, by setting the turntable 73 to be rotatably connected to the base shell 71, and the turntable 73 to be detachably connected to the connecting shaft 12, the safety carrier body 6 can be detachably connected to the base structure 7. The specific structure of the detachable connection between the turntable 73 and the connecting shaft 12 will not be described in detail here.

[0099] Specifically, such as Figure 9-17As shown, the upper end face of the base shell 71 is provided with a second display hole 712; the rotary locking handle 72 includes a T-shaped insertion part 721 and a second handle part 722. The insertion part 721 can be inserted into any working limiting groove 731. The second handle part 722 is provided with a handle groove 7221 communicating with the second display hole 712, as well as a third mark 7222 and a fourth mark 7223. Along the insertion direction of the rotary locking handle 72, the handle groove 7221 is located between the third mark 7222 and the fourth mark 7223, and the fourth mark 7223 is closer to the insertion part 721 than the handle groove 7221. The base housing 71 is also provided with a third elastic member 74. One end of the third elastic member 74 is connected to the second handle portion 722 and is distributed on the second handle portion 722 away from the insertion portion 721 along the insertion direction of the rotary locking handle 72. The other end of the third elastic member 74 is connected to the base housing 71 and is distributed between the insertion portion 721 and the second handle portion 722 along the insertion direction of the rotary locking handle 72. With this configuration, a force parallel to and opposite to the insertion direction of the rotary locking handle 72 is applied to the rotary locking handle 72 through the handle groove 7221. When the insertion part 721 of the rotary locking handle 72 moves away from the working limit groove 731, the fourth mark 7223 is displayed in the second display hole 712, and the position of the turntable 73 is unlocked. During this process, the third elastic member 74 is stretched, so that the elastic restoring force of the third elastic member 74 can drive the insertion part 721 of the rotary locking handle 72 to be inserted into the working limit groove 731. When the insertion part 721 of the rotary locking handle 72 is fully inserted into the working limit groove 731, the third mark 7222 is displayed in the second display hole 712, and the position of the turntable 73 is locked.

[0100] Specifically, in this embodiment, such as Figure 9-12 As shown, the rotary locking handle 72 is slidably disposed inside the base housing 71, and the insertion part 721 of the rotary locking handle 72 can extend out of the base housing 71 and be inserted into any working limiting groove 731.

[0101] Specifically, in this embodiment, such as Figure 12 and Figure 17 As shown, the third elastic element 74 is distributed on one side of the rotary locking handle 72. In this embodiment, the third elastic element 74 is a spring. In other embodiments, the third elastic element 74 may be provided on both sides of the rotary locking handle 72.

[0102] Among these, the third identifier 7222 and the fourth identifier 7223 are identifiers of different colors; or the third identifier 7222 and the fourth identifier 7223 are identifiers of different symbols; or the third identifier 7222 and the fourth identifier 7223 are identifiers of different characters, etc. It is sufficient to be able to distinguish between the third identifier 7222 and the fourth identifier 7223.

[0103] Preferably, the insertion portion 721 and the second handle portion 722 of the rotary locking handle 72 are integrally formed. This configuration improves the structural strength of the rotary locking handle 72, reduces the number of parts, and facilitates assembly.

[0104] Among them, such as Figure 8 , Figure 1-13 and Figure 18-20 As shown, the bottom wall of the safety basket body 6 is provided with a first pressing part 62, the turntable 73 is provided with two elastic limiting posts 75 that penetrate the turntable 73 along the thickness direction of the turntable 73, and two limiting ears 711 are provided at intervals inside the base shell 71; the two elastic limiting posts 75 and the two working limiting grooves 731 are arranged in a one-to-one correspondence. When the rotating locking handle 72 is inserted into one of its working limiting grooves 731, the first pressing part 62 presses down one of the elastic limiting posts 75 into the base shell 71; when the working limiting groove 731 is rotated by a set angle in the first clockwise direction, the elastic limiting post 75 abuts against one of its limiting ears 711 in the first clockwise direction; when the working limiting groove 731 is rotated by a set angle in the second clockwise direction, the elastic limiting post 75 abuts against the other limiting ear 711 in the second clockwise direction. The first clockwise direction and the second clockwise direction are opposite. Specifically, when the safety basket body 6 is equipped with a position adjustment device and is installed on the base structure 7 facing the vehicle's windshield, the first pressing part 62 presses down on one of the elastic limiting posts 75; when the safety basket body 6 is equipped with a position adjustment device and is installed on the base structure 7 with its back to the vehicle's windshield, the first pressing part 62 presses down on the other elastic limiting post 75. Specifically, in this embodiment, the angle is set to 90°. Figure 3-5 and Figure 7-15As shown, when the elastic limiting post 75 is pressed down into the base housing 71, and it is necessary to rotate the safety basket body 6 to a set angle in the first clockwise direction or the second clockwise direction, firstly, the rotating locking handle 72 is rotated to unlock the turntable 73 so that the turntable 73 can rotate. Then, the safety basket body 6 is rotated to a set angle in the first clockwise direction or the second clockwise direction. After rotating to the set angle, the elastic limiting post 75 abuts against the corresponding limiting ear 711, so that the turntable 73 can no longer be rotated in the same clockwise direction, thereby limiting the safety basket body 6 to face one of the left or right doors of the vehicle. At this time, the adjustment member 31 is pulled out. The relative positions of the first frame body 11 and the second frame body 21 are unlocked, and then the support frame 2 and the safety basket body 6 connected to the support frame 2 are moved synchronously along the length direction of the first frame body 11 by the pull-out adjustment component 31. This allows the relative positions of the safety basket body 6 and the base structure 7 along the length direction of the first frame body 11 to be adjusted without severing the connection between them. This makes the safety basket body 6 closer to the car door, facilitating the removal of the child from the vehicle, effectively improving operational convenience and avoiding energy consumption. After the child is removed, the safety basket body 6 is returned to its original position, and the locking handle 72 is rotated and re-inserted into the corresponding working limit slot 731. Two limit ears 711 are spaced apart on the inner bottom wall of the base shell 71. The first pressing part 62 is distributed within the accommodating space 61.

[0105] Understandably, when the safety basket body 6 is equipped with a position adjustment device and is assembled onto the base structure 7, one of its elastic limiting posts 75 is pressed down to extend into the base shell 71. For example... Figure 3-5 and Figure 7-15As shown, when it is necessary to remove a child from the car seat 6, a force parallel to and opposite to the insertion direction of the rotary locking handle 72 is first applied to the rotary locking handle 72 through the handle groove 7221, causing the rotary locking handle 72 to move away from the corresponding working limit groove 731. During this process, the third elastic member 74 is stretched synchronously. When the insertion part 721 of the rotary locking handle 72 is completely disengaged from the corresponding working limit groove 731, the fourth mark 7223 is displayed in the second display hole 712. Only then can the car seat 6 be rotated in the first clockwise direction or the second clockwise direction. After rotating the set angle so that the car seat 6 faces the nearest door, the elastic limit post 75 abuts against the corresponding limit ear 711, preventing the turntable 73 from being rotated in the same clockwise direction. This limits the safety carrier body 6 to face the nearest car door; then, the relative positions of the first frame body 11 and the second frame body 21 are unlocked by the pull-out adjustment component 31. After the relative positions of the first frame body 11 and the second frame body 21 are unlocked, the pull-out adjustment component 31 drives the first elastic component 32, the locking component 4, the support frame 2, and the safety carrier body 6 connected to the support frame 2 to move synchronously along the length direction of the first frame body 11 toward the car door. This allows the relative positions of the safety carrier body 6 and the base structure 7 along the length direction of the first frame body 11 to be adjusted without severing the connection between the safety carrier body 6 and the base structure 7, so that the safety carrier body 6 is closer to the car door, making it easier to take the child out of the vehicle. After the child is taken away, the safety carrier body 6 is returned to its original position. At this time, the elastic restoring force of the third elastic element 74 causes the insertion part 721 of the rotating locking handle 72 to be inserted into the working limit groove 731 again. The third mark 7222 is displayed in the second display hole 712, and the position of the turntable 73 is locked.

[0106] Furthermore, after the safety basket body 6 is installed on the base structure 7 with the windshield of the vehicle facing it, the first pressing part 62 presses down on one of the elastic limiting posts 75, which extends into the base shell 71. If you want to adjust the safety basket body 6 so that it faces away from the windshield of the vehicle, you can remove the safety basket body 6 from the base structure 7 and reinstall it so that the safety basket body 6 faces away from the windshield of the vehicle. At this time, the first pressing part 62 presses down on the other elastic limiting post 75, which extends into the base shell 71.

[0107] It is understandable that when the safety basket body 6 is not equipped with a position adjustment device and is assembled onto the base structure 7, neither of the two elastic limiting posts 75 will be pressed down to extend into the base shell 71. Figure 8-12As shown, when a force parallel to and opposite to the insertion direction of the rotary locking handle 72 is applied to the rotary locking handle 72 through the handle groove 7221, the rotary locking handle 72 is moved away from its first working limit groove 731. During this process, the third elastic element 74 is stretched synchronously. When the insertion part 721 of the rotary locking handle 72 is completely disengaged from its first working limit groove 731, the fourth mark 7223 is displayed in the second display hole 712. At this time, the turntable 73 can be rotated so that the other working limit groove 731 is rotated to be directly opposite the insertion part 721. During the rotation of the turntable 73, the rotary locking handle 72 can be released or the rotation can continue. The locking handle 72 applies a force parallel to and opposite to the insertion direction of the rotating locking handle 72. It is understood that if the rotating locking handle 72 is released, the insertion portion 721 of the rotating locking handle 72 is pressed against the outer peripheral wall of the turntable 73 under the elastic restoring force of the third elastic member 74. When the turntable 73 is rotated so that another working limiting groove 731 is aligned with the insertion portion 721, the elastic restoring force of the third elastic member 74 causes the insertion portion 721 of the rotating locking handle 72 to insert into the other working limiting groove 731. At this time, the third mark 7222 is displayed in the second display hole 712, and the position of the turntable 73 is locked. It is understood that when the insertion portion 721 of the rotating locking handle 72 is not fully inserted into the working limiting groove 731, or when the insertion portion 721 of the rotating locking handle 72 is not fully withdrawn from the working limiting groove 731, the second display hole 712 will display a portion of the third mark 7222 and a portion of the fourth mark 7223.

[0108] Specifically, such as Figure 1-3 , Figure 8 , Figure 18 and Figure 19 As shown, the bottom of the first frame body 11 is provided with a second pressing part 113. Along the third direction, the second pressing part 113 is located inside the first pressing part 62 and fits against the first pressing part 62. The first pressing part 62 and the second pressing part 113 can press the elastic limiting post 75 down into the base shell 71. This arrangement can ensure the working performance of the elastic limiting post 75.

[0109] Specifically, such as Figure 20 As shown, along the circumference of the turntable 73, each limiting ear 711 includes two ears 7111 with openings facing opposite directions, and the two ears 7111 are correspondingly arranged with two elastic limiting posts 75. This arrangement ensures that when the safety basket body 6 is rotated to face the left or right door of the vehicle, the position of the safety basket body 6 can be limited by the cooperation of the elastic limiting posts 75 and the limiting ears 711, so that the safety basket body 6 is directly facing the door of the vehicle.

[0110] More specifically, such as Figure 1-3 , Figure 8 , Figure 10-12 and Figure 18-20 As shown, the elastic limiting post 75 includes a limiting post 751 that slides through the turntable 73 along its thickness direction, and a fourth elastic element 752. The fourth elastic element 752 is sleeved on the outer periphery of the limiting post 751, with its two ends respectively abutting against the axial limiting surface on the limiting post 751 and the turntable 73. The first pressing part 62 can press the limiting post 751 into the base shell 71, and the limiting post 751 can abut against one of its ears 7111. Specifically, the second pressing part 113 can press the limiting post 751 into the base shell 71 synchronously with the first pressing part 62. This arrangement allows the limiting post 751 to extend into the base shell 71 and to exit the base shell 71 under the elastic restoring force of the fourth elastic element 752. The fourth elastic element 752 is a spring.

[0111] The present invention also discloses a child stroller, including a stroller body and the aforementioned child safety carrier, wherein the safety carrier body 6 is detachably connected to the stroller body.

[0112] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A position adjustment device, characterized in that, It includes a connecting frame (1), a supporting frame (2), and a sliding locking mechanism disposed between the connecting frame (1) and the supporting frame (2); The connecting frame (1) includes a first frame body (11) and two connecting shafts (12) that are spaced apart along the length of the first frame body (11) and fixedly connected to the first frame body (11). Both connecting shafts (12) can be connected to a first external device. The support frame (2) includes a second frame body (21) slidably disposed on the first frame body (11), and two support arm groups fixedly connected to the second frame body (21). The support arm groups extend out of the first frame body (11) and can be connected to a second external device. The two connecting shafts (12) and the two support arm groups are alternately distributed along the length direction of the first frame body (11). The sliding locking mechanism includes a pull-out adjustment assembly (3) and a locking member (4) distributed between the first frame body (11) and the second frame body (21). The pull-out adjustment assembly (3) can drive the locking member (4) to move so that the locking member (4) has a locking position for locking the relative position of the first frame body (11) and the second frame body (21), and an unlocking position for unlocking the relative position of the first frame body (11) and the second frame body (21). When the locking member (4) is in the unlocking position, the pull-out adjustment assembly (3) can drive the support frame (2) to slide relative to the first frame body (11) along the length direction of the first frame body (11). When the locking member (4) is in the locking position, along the length direction of the first frame body (11), a support arm group distributed on one side of the two connecting shafts (12) abuts against the adjacent connecting shaft (12).

2. The position adjustment device according to claim 1, characterized in that, The pull-out adjustment assembly (3) includes a pull-out adjustment member (31) slidably disposed between the first frame body (11) and the second frame body (21), and a first elastic member (32). The first elastic member (32) is distributed between the pull-out adjustment member (31) and the second frame body (21), and its two ends are respectively connected to the pull-out adjustment member (31) and the second frame body (21). The pull-out adjustment member (31) can drive the locking member (4) to retract into the second frame body (21) along the first direction, so that the locking member (4) is in the unlocked position. The elastic restoring force of the first elastic member (32) can drive the locking member (4) to partially extend out of the second frame body (21) along the second direction and partially insert into the first frame body (11), so that the locking member (4) is in the locked position. When the locking member (4) retracts into the second frame body (21), the pull-out adjustment member (31) can drive the first elastic member (32) and the support frame (2) to slide synchronously relative to the first frame body (11) along the length direction of the first frame body (11). The first direction is parallel to and opposite to the second direction.

3. The position adjustment device according to claim 2, characterized in that, The pull-out adjustment component (31) includes an unlocking part (311), which has a central hole (3111) extending along the first direction and two guide slopes (3112) spaced apart on both sides of the central hole (3111) along a third direction. The first direction is perpendicular to the third direction, and the length direction of the first frame body (11) is angled with the plane containing the first direction and the third direction. The first frame body (11) is provided with a locking hole (111), and the second frame body (21) is provided with a limiting part (211) inserted into the central hole (3111). The limiting part (211) is recessed along the first direction and has a locking groove (2111) that can communicate with the locking hole (111). The locking member (4) includes a locking part (41) and two adjusting parts (42) connected to the locking part (41). The locking groove (2111) and the locking hole (111) are used to accommodate the locking part (41). The two adjusting parts (42) are arranged one-to-one with the two guide slopes (3112). The adjusting part (42) extends out of the locking groove (2111) along the third direction and overlaps the guide slope (3112). The pull-out adjustment member (31) can drive the guide slope (3112) to push the adjustment part (42) to move along the first direction, so that the locking part (41) is distributed in the locking groove (2111); the elastic restoring force of the first elastic member (32) can drive the guide slope (3112) to guide the adjustment part (42) to move along the second direction, so that the locking part (41) partially extends out of the locking groove (2111) and is inserted into the locking hole (111).

4. The position adjustment device according to claim 3, characterized in that, The limiting part (211) is also recessed with two elongated guide holes (2112) spaced apart along the third direction. Both elongated guide holes (2112) are connected to the locking groove (2111), and the length direction of the elongated guide holes (2112) is parallel to the first direction. The two elongated guide holes (2112) are provided one-to-one with the two adjustment parts (42), and the adjustment parts (42) pass through the elongated guide holes (2112) along the third direction and overlap the guide slope (3112).

5. The position adjustment device according to claim 3, characterized in that, The limiting part (211) is provided with a first limiting surface and a second limiting surface (2113) spaced apart along the length direction of the first frame body (11). When the locking member (4) is in the locked position, the first limiting surface abuts against the first inner sidewall (3113) of the center hole (3111). When the locking member (4) is in the unlocked position, the second limiting surface (2113) abuts against the second inner sidewall (3114) of the center hole (3111).

6. The position adjustment device according to claim 3, characterized in that, The pull-out adjustment component (31) also includes a connecting part (312) and a first handle part (313). Along the length direction of the first frame body (11), the two ends of the connecting part (312) are respectively connected to the first handle part (313) and the unlocking part (311). The first elastic element (32) is distributed between the connecting part (312) and the second frame body (21), and its two ends are respectively connected to the connecting part (312) and the second frame body (21); the first handle part (313) is located outside the first frame body (11) and the second frame body (21), and along the length direction of the first frame body (11), the first handle part (313) is distributed on the same side as a support arm group distributed on one side of the two connecting shafts (12).

7. The position adjustment device according to any one of claims 1-6, characterized in that, The position adjustment device further includes an identification component (5) disposed above the second frame body (21). The identification component (5) includes an identification piece (51) rotatably connected to the second frame body (21). Along the length direction of the second frame body (21), the identification piece (51) is distributed on the same side as a support arm group distributed on one side of the two connecting shafts (12). The second frame body (21) has a first display hole (212) at one end along the length direction. The marking member (51) has a first mark (511) and a second mark (512) spaced apart at one end along the rotation direction, and a guide abutment surface (513) at the other end. When the guide abutment surface (513) abuts against the outer peripheral surface of a connecting shaft (12) adjacent to it, the first mark (511) is displayed in the first display hole (212). When the guide abutment surface (513) and the connecting shaft (12) adjacent to it are separated, the second mark (512) is displayed in the first display hole (212).

8. The position adjustment device according to claim 7, characterized in that, The marking component (5) further includes a second elastic member. The marking member (51) has a first limiting groove (514) recessed on its end face near the second frame body (21). The first limiting groove (514) is located between the connection point of the marking member (51) rotatably connected to the second frame body (21) and the guide abutment surface (513). The second frame body (21) has a second limiting groove (213) communicating with the first limiting groove (514). The second elastic member is distributed in the first limiting groove (514) and the second limiting groove (213), and the two ends of the second elastic member are respectively connected to the bottom wall of the first limiting groove (514) and the bottom wall of the second limiting groove (213).

9. A child safety carrier, comprising a safety carrier body (6), characterized in that, It also includes the position adjustment device according to any one of claims 1-8, wherein the second external device is the safety basket body (6), and the support arm assembly is detachably connected to the safety basket body (6).

10. A child safety seat, including a base structure (7), characterized in that, It also includes the child safety carrier as described in claim 9, wherein the first external device is the base structure (7), and the base structure (7) is detachably connected to the connecting shaft (12).

11. The child safety seat according to claim 10, characterized in that, The base shell (71) of the base structure (7) is provided with a rotating locking handle (72). The rotating locking handle (72) is distributed along the length direction of the base structure (7) at the front end of the base shell (71) and is slidably disposed on the base shell (71). The turntable (73) of the base structure (7) is rotatably connected to the base shell (71), and the turntable (73) is detachably connected to the connecting shaft (12). The outer peripheral wall of the turntable (73) is provided with two working limit grooves (731) evenly spaced along the circumference, and the rotary locking handle (72) can be inserted into one of the working limit grooves (731).

12. The child safety seat according to claim 11, characterized in that, The bottom wall of the safety basket body (6) is provided with a first pressing part (62), the turntable (73) is provided with two elastic limiting posts (75) that penetrate the turntable (73) along the thickness direction of the turntable (73), and the base shell (71) is provided with two limiting ears (711) spaced apart. Two elastic limiting posts (75) and two working limiting grooves (731) are arranged in a one-to-one correspondence. When the rotary locking handle (72) is inserted into one of the working limiting grooves (731), the first pressing part (62) presses down one of the elastic limiting posts (75) into the base shell (71). When the working limiting groove (731) is rotated by a set angle in the first clockwise direction, the elastic limiting post (75) abuts against one of the limiting ears (711) in the first clockwise direction. When the working limiting groove (731) is rotated by a set angle in the second clockwise direction, the elastic limiting post (75) abuts against the other limiting ear (711) in the second clockwise direction. The first clockwise direction and the second clockwise direction are opposite.

13. A stroller, comprising a stroller body, characterized in that, It also includes the child safety carrier as described in claim 9, wherein the safety carrier body (6) is detachably connected to the stroller body.

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