CN110464166B - Infant carrier and hook unfolding and folding mechanism thereof - Google Patents

Abstract

The invention discloses a baby carrier and a hook unfolding and retracting mechanism thereof. The baby carrier includes a carrier base frame and a carrier body that is selectively used in combination with the carrier base frame or used alone; and the hook retractable mechanism includes a hook that is movable on the carrier body and a push-up linkage. Relative to the vehicle body, it has at least a retracted position and an exhibited position, and the push-up linkage is set in conjunction with the hook; when the vehicle body is used alone and placed on an external object, the push-up linkage is pushed out by the external object. The interlocking hook is switched from the display position to the retracted position; when the vehicle body moves away from the external object and the push link is separated from the push of the external object, the push link and the hook are interlocked to make the hook Switch from the retracted position to the displayed position, so that the hook is in the retracted position when the vehicle body is used alone, and will not cause obstacles; when the vehicle body moves away from external objects, it is in the displayed position, so that the vehicle body can be easily engaged Used in combination with the carrier base on the carrier base.

Description

Baby carrier and its hook unfolding and retracting mechanism

technical field

The invention relates to the field of baby products, in particular to a baby carrier and a hook unfolding and retracting mechanism thereof.

Background technique

With the continuous development of the economy and the continuous advancement of science and technology, extremely rich material consumer goods are provided for people's lives, and baby carriers are one of many material consumer goods.

Products such as baby cots, child safety seats, baby high chairs, high chairs or baby swings are known as baby carriers. Wherein, for an infant carrier that includes a carrier base frame and a carrier body that is selectively used in combination with the carrier base frame or used alone, the carrier body is engaged with the carrier base frame through its fixed hooks. The hook is used to prevent the vehicle body from accidentally falling off from the vehicle base frame after being engaged and fixed with the vehicle base frame; when the vehicle body moves away from the vehicle base frame When the carrier is used alone, the hook fixed on the vehicle body is exposed because it is not covered by the vehicle base frame, so the exposed hook will cause obstacles and cause accidents.

Therefore, there is an urgent need for a baby carrier that can be folded when the carrier body is used alone to prevent accidents, and when the carrier body and the carrier base frame are used in combination, it is convenient for the two to engage and fix the baby carrier and its hook. mechanism to overcome the aforementioned drawbacks.

Contents of the invention

An object of the present invention is to provide a hook unfolding and retracting mechanism that can be folded when the carrier body is used alone to prevent accidents, and when the carrier body and the carrier base frame are used in combination, the two hooks can be engaged and fixed.

Another object of the present invention is to provide a baby carrier that can be folded when the carrier body is used alone to prevent accidents from happening, and when the carrier body and the carrier base frame are combined for use, the two are conveniently engaged and fixed. .

In order to achieve the above object, the technical solution of the present invention is to provide a hook extension and retraction mechanism, which is suitable for baby carriers. The baby carrier includes a carrier base frame and a carrier body that is selectively used in combination with the carrier base frame or used alone; and the hook unfolding and retracting mechanism of the present invention includes a hook that is movably arranged on the carrier body and a push-up linkage The hook has at least a retracted position and an exhibition position relative to the vehicle body, and the push-up linkage is set in conjunction with the hook; when the vehicle body is used alone and placed on an external object, the push-up linkage is set Pushing and interlocking hooks switch from the display position to the retracting position; when the vehicle body moves away from the external object and the pushing link is separated from the pushing of the external object, the pushing link and the hook are interlocked And the hook is switched from the retracted position to the displayed position.

Preferably, when the hook is switched to the retracted position, it is stored in the carrier body, and when the hook is switched to the display position, it protrudes from the carrier body.

Preferably, the push link is retracted from the carrier body when pushed by the external object, and the push link protrudes from the carrier body when the carrier body moves away from the external object.

Preferably, the hook retracting mechanism of the present invention also includes an elastic member, the first end of the elastic member is connected with the hook or the pushing link, the second end of the elastic member is connected with the carrier body, and the elastic member has a constant function to make the hook The tendency to switch from the collapsed position to the displayed position.

Preferably, the push link is slidably arranged on the carrier body along the height direction of the carrier body, the hook is pivotally connected with the carrier body around a pivot, and the axial direction of the pivot is connected with the slide of the push link. The directions are staggered.

Preferably, the push-pushing link is also inserted into the carrier body along the height direction of the carrier body, the hook is built into the carrier body, and the carrier body is provided with a movable cavity for the hook to expand and retract. When the hook is in the retracted position, it is stored in the movable cavity, and when the hook is in the display position, the movable cavity is displayed to protrude from the carrier body.

Preferably, the hook is flush with the carrier body when stored in the movable cavity.

Preferably, the push link is a rod-shaped structure or a tubular structure.

Preferably, one of the push linkage and the hook has a linkage protrusion, and the other of the push linkage and the hook is provided with a long slot matching the linkage protrusion, and the linkage protrusion is placed in the slot And slide in the long slot hole, the push link slides in the long slot hole through the interlocking protrusion, and the interlocking hook switches between the retracted position and the unfolded position.

Preferably, the first end of the elastic member is connected to the interlocking protrusion, and the carrier body has a socket portion for being socketed and assembled with the second end of the elastic member.

Preferably, the socket portion is a cylindrical structure, the socket portion is inserted into the second end of the elastic member, and the first end of the elastic member is in contact with the interlocking protrusion.

Preferably, the interlocking protrusion is a cylindrical structure, and the long slot is an arc slot.

Preferably, the hook extension and retraction mechanism is located on the side wall of the carrier body in the length direction, and the hook extension and retraction mechanism is also arranged adjacent to the side wall of the carrier body in the width direction.

In order to achieve the above objectives, the baby carrier of the present invention includes a carrier base frame, a carrier body selectively used in combination with the carrier base frame or used alone, and the above-mentioned hook retractable mechanism. When the carrier body is assembled on the carrier base frame, the hook is engaged and fixed with the carrier base frame because it is in the unfolding position, thereby preventing the carrier body from moving away from the carrier base frame.

Preferably, the hook has an engaging portion facing the base frame of the carrier, and the base frame of the carrier has an engaging portion matched with the engaging portion.

Preferably, one of the engaging portion and the engaging portion is a barb structure, and the other of the engaging portion and the engaging portion is a slot structure.

Preferably, the engaging portion is formed at a top corner of the carrier base frame.

Preferably, the carrier body is a hammock or a basket, and the carrier base is correspondingly a bed frame or a base.

Compared with the prior art, since the hook unfolding and retracting mechanism of the present invention includes a hook and a push-up linkage that are movably arranged on the carrier body, the hook has at least a retracted position and an unfolded position relative to the carrier body, and the push-up linkage The moving part and the hook are set in linkage; therefore, when the carrier body is placed on an external object for single use, the push-up linkage is pushed by the external object and the interlocking hook is switched from the display position to the retracted position, making the hook storage In the vehicle body, it will not cause obstacles and effectively prevent accidents from happening; when the vehicle body moves away from the external object and the push-up linkage is separated from the push-up with the external object, the push-up linkage at this time Linked with the hook, the hook is switched from the retracted position to the unfolded position, preparing for the engagement and fixation of the hook and the carrier base frame, so that the hook engages with the carrier when the carrier body is assembled on the carrier base frame. on a pedestal to simplify operation.

Description of drawings

FIG. 1 is a three-dimensional schematic view of the carrier body in the baby carrier of the present invention when it is used in combination with the carrier base frame.

Fig. 2 is a perspective structural view of the carrier body in the infant carrier of the present invention when it is used alone.

FIG. 3 is a three-dimensional structural schematic view of the carrier body in the baby carrier of the present invention when the outer fabric is hidden and the hook is engaged with the top corner.

Fig. 4 is an enlarged view of part A in Fig. 3 .

Fig. 5 is an enlarged view of part A in Fig. 3 after hiding the corners.

FIG. 6 is a schematic perspective view of the hook in the carrier body shown in FIG. 3 .

FIG. 7 is a schematic perspective view of the vertex in the carrier body shown in FIG. 3 .

FIG. 8 is a three-dimensional structural diagram of the carrier body shown in FIG. 3 after hiding part of the structure at its corner.

FIG. 9 is a schematic perspective view of the push link in the carrier body shown in FIG. 8 .

FIG. 10 is a three-dimensional structural schematic diagram of another angle of the carrier body shown in FIG. 3 after hiding part of the structure at its corner position.

FIG. 11 is a schematic perspective view of the carrier body shown in FIG. 3 after hiding part of the structure at its corner.

FIG. 12 is a schematic perspective view of the connecting element in the carrier body shown in FIG. 11 .

FIG. 13 is a schematic diagram of a partial internal structure when the hook unfolding and retracting mechanism of the present invention is assembled on the carrier body and the hook is in an unfolded position.

FIG. 14 is a schematic diagram of a partial internal structure when the hook unfolding and retracting mechanism of the present invention is assembled on the carrier body and the hook is in a retracted position.

Detailed ways

Embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals represent like elements.

Referring to FIGS. 1 to 3 , the baby carrier 100 of the present invention includes a carrier base frame 10 , a carrier body 20 and a hook retractable mechanism 30 disposed on the carrier body 20 . The carrier body 20 is selectively used in combination with the carrier base frame 10 , or used alone to meet the diverse usage requirements of the carrier body 20 . When the carrier body 20 is used in combination with the carrier base frame 10, the carrier body 20 is supported by the carrier base frame 10, and the carrier base frame 10 is supported by an external object (such as the ground, a table or a desktop), so that At this time, the hook 31 described below in the hook extension mechanism 30 is engaged on the carrier base frame 10 because it is in the unfolded position as shown in FIG. 13 , thereby prohibiting the carrier body 20 from moving away from the carrier base frame 10 , to ensure the stability and reliability of the combination of the carrier body 20 and the carrier base frame 10 when used in combination; The hook 31 is in the retracted position shown in FIG. 14 , so as to prevent the hook 31 from being obstructed by protruding outside the carrier body 20 when the carrier body 20 is used alone. Specifically, as shown in FIG. 3 , FIG. 8 , FIG. 10 and FIG. 11 , the hook extension and retraction mechanism 30 is located on the side wall of the carrier body 20 in the longitudinal direction (that is, the direction indicated by the double arrow B), and the hook extension and retraction mechanism 30 It is also adjacent to the side wall of the carrier body 20 in the width direction (that is, the direction indicated by the double arrow C), so as to increase the number of positions that are engaged and fixed between the carrier body 20 and the carrier base frame 10, and further ensure that the carrier The stability after assembly between the main body 20 and the vehicle base frame 10; preferably, the hook extension and retraction mechanisms 30 are respectively located at the four corners of the vehicle body 20, so that the hook extension and retraction mechanisms 30 are on the carrier body 20 The layout above is more reasonable and compact, but not limited to this. For example, as shown in Figures 1 and 2, the baby carrier 100 of the present invention is a crib, correspondingly, the carrier base frame 10 is a bed frame and the carrier body 20 is a hammock; of course, according to actual needs, this The inventive baby carrier 100 can also be a child safety seat, a high chair, a baby dining chair or a baby swing. Correspondingly, the carrier base frame 10 is a base, a chair frame or a swing frame, and the carrier body 20 is a basket or seats, so it is not limited to this. It should be noted that since the specific structures of the carrier base frame 10 and the carrier body 20 are well-known structures in the art, they will not be described in detail here.

As shown in FIG. 8 , FIG. 9 and FIG. 11 , the hook extension and retraction mechanism 30 includes an elastic member 33 , a hook 31 and a push-up linkage member 32 that are movable on the carrier body 20 . Relative to the carrier body 20 , the hook 31 at least has a retracted position as shown in FIG. 14 and an unfolded position as shown in FIG. 13 . The push-pushing link 32 is arranged in conjunction with the hook 31 to ensure the reliability of the linkage between the two. The first end of the elastic member 33 is connected with the hook 31, of course, the first end of the elastic member 33 is connected with the pushing link 32 according to actual needs, so it is not limited to this; the second end of the elastic member 33 is connected with The carrier body 20 is connected, and the elastic member 33 always has a tendency to switch the hook 31 from the retracted position to the unfolded position. When the vehicle body 20 is used alone and placed on an external object, the push link 32 is pushed by the external object (the push direction is indicated by the arrow next to the push link 32 in Figure 13 ) and the hook is interlocked. 31 is switched from the display position as shown in Figure 13 to the retracted position as shown in Figure 14 to realize the automatic retraction of the hook 31, and at this time the elastic member 33 produces elastic deformation to provide a reset elastic force; when the carrier body 20 When moving away from the external object to make the push link 32 break away from the push of the external object, under the reset elastic force provided by the elastic member 33, the push link 32 and the hook 31 are interlocked so that the hook 31 is moved by The retracted position shown in Figure 14 is switched to the exhibited position shown in Figure 13 to realize the automatic springing of the hook 31; preferably, as shown in Figure 14, the push link 32 is pushed by an external object Shrinking in the vehicle body 20, the self-weight of the vehicle body 20 is supported by external objects. At the same time, the hook 31 is switched from the exhibition position to the retracted position, and the hook 31 in the retracted position is stored in the vehicle body 20; As shown in Figure 13 , the push link 32 protrudes from the carrier body 20 when the carrier body 20 moves away from the external object. At the same time, the hook 31 is switched from the retracted position to the displayed position. 31 protrudes from the carrier body 20 so as to facilitate the hook 31 to engage and fix with the carrier base frame 10 when the carrier body 20 is assembled on the carrier base frame 10 , but is not limited thereto. For example, when the hook 31 is switched from the retracted position to the unfolded position, the push link 32 slides downwards and protrudes from the carrier body 20, the state is shown in Figure 13; When the hook 31 is switched from the unfolded position to the retracted position, it slides upwards and retracts into the carrier body 20 . The state is shown in FIG. 14 , but is not limited thereto. It can be understood that when the elastic member 33 is deleted according to actual needs, the operator operates the push link 32 or the hook 31 to realize the mutual interlocking of the push link 32 and the hook 31, so as to achieve The hook 31 is switched from the retracted position as shown in FIG. 14 to the unfolded position as shown in FIG. 13 , so the above examples are not limited thereto. More specifically, as follows:

As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 13 and Fig. 14, the push link 32 is slidably arranged on the carrier body 20 along the height direction of the carrier body 20 (that is, the direction indicated by the double arrow D), Preferably, the push link 32 is also inserted into the carrier body 20 along the height direction of the carrier body 20, so that the push link 32 is built into the carrier body 20 to ensure that the carrier body 20 The simplicity of appearance, but not limited to. The hook 31 is pivotally connected to the carrier body 20 around a pivot 34 , the axial direction of the pivot 34 is staggered with the sliding direction of the push link 32 , and preferably, the pivot 34 is connected to the push link 32 Made into mutually independent structures, so as to facilitate the assembly of the push link 32 and the carrier body 20, of course, according to actual needs, the pivot 34 can also be made into an integral structure with the push link 32, so it is not limited to this and the axial direction of the pivot 34 is consistent with the length direction of the carrier body 20, which is more convenient for the push link 32 to move in the width direction of the carrier body 20 during the sliding process of the push link 32 along the height direction of the carrier body 20 Pivot pendulum, but not limited to this. Specifically, the hook 31 is also built into the carrier body 20, so that the appearance of the carrier body 20 is simple. When it is in the closed position, it is stored in the movable chamber groove 21. Preferably, when the hook 31 is stored in the movable chamber groove 21, it is also flush with the carrier body 20. The state is shown in Figure 14; the hook 31 is in the exhibition position. When the movable cavity 21 is displayed to protrude from the carrier body 20, it is convenient to engage and fix with the carrier base frame 10. The state is shown in FIG. 13 . For example, the push link 32 has a tubular structure, so that the push link 32 is lightweight, and facilitates the push link 32 to slide through the carrier body 20 along the height direction of the carrier body 20 inside; of course, according to actual needs, the push link 32 can also be a rod-shaped structure, so it is not limited thereto.

As shown in Fig. 8 and Fig. 9, the way to realize the interlocking setting of the push linkage 32 and the hook 31 is: the hook 31 has a linkage protrusion 311, and the push linkage 32 is provided with a long groove matching the linkage protrusion 311 The hole 321 and the interlocking protrusion 311 are placed in the long slot hole 321 and slide in the long slot hole 321, so that the push link 32 is linked to the hook 31 by the interlocking protrusion 311 sliding in the long slot hole 321 Switch between the retracted position and the unfolded position; of course, according to actual needs, the long slot 321 can be formed on the hook 31 and the interlocking protrusion 311 can be formed on the push-up link 32 to achieve the push-up linkage Part 32 is connected with hook 31, so it is not limited thereto. Specifically, the interlocking protrusion 311 and the hook 31 are made into mutually independent structures. At this time, the interlocking protrusion 311 passes through the long slot hole 321 and then assembles both ends at the hook 31; of course, according to actual needs, the interlocking protrusion 311 can also be The movable protrusion 311 and the hook 31 are made into an integral structure. Therefore, it is not limited to this. More specifically, as shown in FIGS. 12 to 14 , the first end of the elastic member 33 is connected to the interlocking protrusion 311 . The carrier body 20 has a socket portion 221 that is socketed and assembled with the second end of the elastic member 33; preferably, the socket portion 221 is formed at the connector 22 of the carrier body 20, and the socket portion 221 is Cylindrical structure, the sleeve part 221 is inserted into the second end of the elastic member 33, and the first end of the elastic member 33 is in contact with the linkage protrusion 311, which is more conducive to the linkage between the hook 31 and the push-up linkage 32 reset. For example, the interlocking projection 311 is a cylindrical structure, such as a pin, and correspondingly, the long slot 321 is an arc-shaped slot, so that the sliding movement of the interlocking projection 311 in the long slot 321 is more stable. Smooth, but not limited to.

As shown in Figures 6 to 8, the hook 31 has an engaging portion 312 facing the carrier base frame 10, and the carrier base frame 10 has a fitting portion 111 that cooperates with the engaging portion 312, preferably, the fitting portion 111 is formed at the top corner 11 of the carrier base frame 10 to match the hook retractable mechanism 30 at the corner of the carrier body 20, but not limited thereto; the engaging portion 312 is assembled on the carrier body 20 on the carrier base In the process of racking 10, it is first pushed by the carrier base frame 10 to make an avoidance movement around the pivot 34. The engaging part 312 of the avoiding movement crosses the push of the carrier body 10 and engages with the engaging part 111, that is, That is, when the carrier body 20 is assembled on the carrier base frame 10, the engaging portion 312 of the hook 31 is automatically engaged with the engaging portion 111, thus simplifying the operation process. For example, the engaging part 312 has a barb structure, and the engaging part 111 has a slot structure. Of course, according to actual needs, the engaging part 312 can also have a slot structure, and the engaging part 111 has a barb structure, and both can be achieved in the same way. It is not limited to the purpose of carding.

In conjunction with the accompanying drawings, the working principle of the baby carrier of the present invention is described: when the carrier body 20 of the baby carrier 100 of the present invention is to be used alone, the carrier body 20 is placed on an external object (such as the ground, table or desktop), so under the weight of the carrier body 20, the push link 32 that protrudes downward from the carrier body 20 slides upwards under the upward push of an external object, thereby shrinking inwards in the carrier body 20 until the carrier body 20 is supported by an external object; The cooperation of the protrusion 311 and the slot 321 causes the hook 31 to pivot around the pivot 34, so that the hook 31 is switched from the unfolded position shown in FIG. 13 to the retracted position shown in FIG. 14, and the elastic member 33 is in an elastic Deformed state, thus providing elastic restoring force. When the carrier body 20 used alone moves away from the external object and is assembled on the carrier base frame 10, at this time, due to the pushing link 32 breaking away from the pushing with the external object, and the elastic restoring force provided by the elastic member 33 Under the action, the push link 32 is interlocked with the hook 31 under the cooperation of the interlock protrusion 311 and the long slot hole 321, so that the push link 32 protrudes from the carrier body 20 while sliding downward. At the same time, the hook 31 is switched from the retracted position to the displayed position, the state is shown in Figure 13, so as to facilitate the engagement of the hook 31 with the top corner 11 of the carrier base frame 10; therefore, the carrier body 20 is assembled on the carrier When the pedestal 10 is on, at this time, the engaging portion 312 in the hook 31 is first pushed by the apex 11 to make an avoidance movement around the pivot 34. The engaging part 111 is engaged to realize the engaging between the engaging part 312 and the engaging part 111 . When the carrier body 20 assembled on the carrier base frame 10 is to be disassembled, at this time, the user pulls the hook 31 outwards to pivot the hook 31 around the pivot 34, and drives the engaging part 312 to disengage and engage with the card. The engagement of the portion 111 allows the carrier body 20 to be removed from the carrier base frame 10 .

Compared with the prior art, since the hook unfolding and retracting mechanism 30 of the present invention includes a hook 31 and a push link 32 that are movably arranged on the carrier body 20, the hook 31 has at least a retracted position and an unfolded position relative to the carrier body 20. out of the position, the push link 32 is set in conjunction with the hook 31; therefore, when the carrier body 20 is placed on an external object (such as the ground, a table or a desktop) for separate use, the push link 32 is pushed by the external object. Push and interlock the hook 31 to switch from the exhibition position to the retracted position, so that the hook 31 is stored in the vehicle body 20 without causing obstacles, effectively preventing accidents from happening; when the vehicle body 20 moves away from external objects and When the push link 32 is separated from the push of the external object, the push link 32 and the hook 31 are interlocked at this time so that the hook 31 is switched from the retracted position to the unfolded position, which is the link between the hook 31 and the vehicle. The clamping and fixing of the base frame 10 is prepared so that the hook 31 is engaged with the carrier base frame 10 when the carrier body 20 is assembled on the carrier base frame 10 , thus simplifying the operation process.

What is disclosed above is only a preferred embodiment of the present invention, and of course it cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the patent scope of the present invention still fall within the scope of the present invention.

Claims (15)

1. The hook unfolding and folding mechanism is suitable for an infant carrier, and the infant carrier comprises a carrier base frame and a carrier body which is selectively combined with the carrier base frame for use or is singly used, and is characterized by comprising a hook and a pushing linkage piece which are movably arranged on the carrier body, wherein the hook at least has a folding position and a unfolding position relative to the carrier body, and the pushing linkage piece is arranged in linkage with the hook; when the carrier body is singly placed on an external object, the pushing linkage piece is pushed by the external object to link the hook to be switched from the exhibiting position to the folding position; when the carrier body moves away from an external object to separate the pushing linkage piece from pushing with the external object, the pushing linkage piece and the hook are mutually linked to enable the hook to be switched from the folding position to the unfolding position, the pushing linkage piece is retracted in the carrier body under pushing of the external object, the pushing linkage piece protrudes out of the carrier body when the carrier body moves away from the external object, the hook unfolding mechanism further comprises an elastic piece, a first end of the elastic piece is connected with the hook or the pushing linkage piece, a second end of the elastic piece is connected with the carrier body, the elastic piece always has a tendency to enable the hook to be switched from the folding position to the unfolding position, the pushing linkage piece is slidably arranged on the carrier body along the height direction of the carrier body, and the hook is pivoted with the carrier body around a pivot, and the axial direction of the pivot is staggered with the sliding direction of the pushing linkage piece.

2. The hanger folding and unfolding mechanism of claim 1, wherein the hanger is stowed within the carrier body when switched to the folded position and protrudes from the carrier body when switched to the unfolded position.

3. The mechanism of claim 1, wherein the pushing linkage member is further disposed in the carrier body in a penetrating manner along a height direction of the carrier body, the hook is disposed in the carrier body, the carrier body is provided with a movable cavity for the hook to be folded and unfolded, the hook is stored in the movable cavity when in the folded position, and the hook is unfolded to protrude out of the carrier body when in the unfolded position.

4. The hanger folding mechanism of claim 3, wherein said hanger is also flush with said carrier body when stowed in said active cavity.

5. The hanger deployment and retraction mechanism of claim 1 wherein the push linkage is a rod-shaped structure or a tubular structure.

6. The mechanism of claim 1, wherein one of the pushing linkage member and the hook has a linkage protrusion, the other of the pushing linkage member and the hook has a slot hole matching the linkage protrusion, the linkage protrusion is disposed in the slot hole and slides in the slot hole, and the pushing linkage member slides in the slot hole by the linkage protrusion to link the hook between the folding position and the unfolding position.

7. The mechanism of claim 6, wherein the first end of the elastic member is connected to the interlocking protrusion, and the carrier body has a socket portion for being assembled with the second end of the elastic member.

8. The mechanism of claim 7, wherein the socket is in a cylindrical structure, the socket is inserted into the second end of the elastic member, and the first end of the elastic member abuts against the linkage protrusion.

9. The mechanism of claim 6, wherein the interlocking projection is a cylindrical structure and the long slot is an arcuate slot.

10. The hitch folding mechanism of claim 1, wherein the hitch folding mechanism is located on a side wall of the carrier body in a length direction, the hitch folding mechanism further being located adjacent to a side wall of the carrier body in a width direction.

11. An infant carrier comprising a carrier base and a carrier body selectively combined with or used alone by the carrier base, characterized in that the infant carrier further comprises a hook deploying and retracting mechanism according to any one of claims 1 to 10, the hook being engaged with and fixed to the carrier base in the deployed position during assembly of the carrier body to the carrier base, thereby prohibiting the carrier body from moving away from the carrier base.

12. The infant carrier of claim 11, wherein the hook has an engagement portion facing the carrier base frame, the carrier base frame having a mating portion mating with the engagement portion.

13. The infant carrier of claim 12, wherein one of the engaging portion and the engaging portion is a barb structure and the other of the engaging portion and the engaging portion is a slot structure.

14. The infant carrier of claim 12, wherein the clip portion is formed at a top corner of the carrier base frame.

15. The infant carrier of claim 11, wherein the carrier body is a hammock or a basket and the carrier base frame is a frame or a base, respectively.