Infant carrier and height adjustment mechanism thereof to prevent misuse

Abstract

The present invention discloses an anti-misuse height adjustment mechanism, which is arranged on a baby carrier. The baby carrier includes a carrier frame and a carrier body. The anti-misuse height adjustment mechanism includes a clamping member, an elastic member, a card release operating member and a fixed seat for assembly and connection with the carrier body. The fixed seat is slidably arranged on the carrier frame and slides and adjusts relative to the carrier frame. The carrier frame has at least two segment matching parts. The clamping member is movably assembled on the fixed seat and selectively engages with any segment matching part. The card release operating member is movably installed on the fixed seat. The card release operating member is also linked to the clamping member through the elastic member, and the force of the card release operating member driving the elastic member to produce elastic deformation during the card release process is less than the resistance generated by both the fixed seat and the carrier body on the fixed seat to block the clamping member from releasing the card. The anti-misuse height adjustment mechanism of the present invention can avoid accidental unlocking due to touching the card release operation. In addition, the present invention also discloses a baby carrier.

Description

Technical Field

[0001] The invention relates to a baby product, and in particular to a baby carrier and a height adjustment mechanism thereof to prevent misuse. Background Art

[0002] Baby strollers have long been widely used in families with children. This type of baby stroller is usually provided with a frame and a sleeping box or seat that can be optionally installed on the frame. In order to facilitate the use of baby strollers, some baby strollers are also provided with a seat height adjustment mechanism located between the frame and the seat. The existing seat height adjustment mechanism includes an operating mechanism and a locking mechanism. The locking mechanism is controlled by operating the operating mechanism to release the locking mechanism, thereby adjusting the height of the seat relative to the frame. However, the current seat height adjustment mechanism can adjust the seat immediately after the operating mechanism is operated, so the seat height adjustment is too casual, and the seat may slide off the frame in the event of an accidental touch or improper operation.

[0003] Therefore, there is an urgent need for a baby carrier and an anti-misuse height adjustment mechanism thereof to overcome the above-mentioned defects. Summary of the invention

[0004] The object of the present invention is to provide a misuse-proof height adjustment mechanism which can avoid accidental unlocking caused by accidental touching.

[0005] Another object of the present invention is to provide a baby carrier that can avoid accidental unlocking caused by accidental contact.

[0006] To achieve the above-mentioned purpose, the anti-misuse height adjustment mechanism of the present invention is provided on a baby carrier, which includes a carrier frame and a carrier body. The anti-misuse height adjustment mechanism includes a clamping member, an elastic member, a card release operating member and a fixing seat for assembly and connection with the carrier body. The fixing seat is slidably provided on the carrier frame and is slidably adjusted relative to the carrier frame. The carrier frame has at least two segment matching parts. The clamping member is movably assembled on the fixing seat and selectively engaged with any segment matching part. The card release operating member is movably installed on the fixing seat. The card release operating member is also linked to the clamping member through the elastic member. In the process of releasing the card, the force of the card release operating member driving the elastic member to generate elastic deformation is smaller than the resistance generated by both the fixing seat and the carrier body on the fixing seat to prevent the clamping member from releasing the card.

[0007] Preferably, the card release operating member is hinged to the fixing seat in a telescopic manner, and the card release operating member is rotated and retracted into the fixing seat when pressed to release the card.

[0008] Preferably, the anti-misuse height adjustment mechanism of the present invention also includes a sliding member slidably disposed in the fixed seat, the sliding member is connected to the elastic member for blocking, and the card release operating member pushes the sliding member to slide upward during the card release process, and the upward sliding member pushes the elastic member to elastically deform.

[0009] Preferably, the card release operating member is provided with a pushing protrusion protruding outward, a positioning notch is formed between the pushing protrusion and the card release operating member, the sliding member is arranged in the positioning notch and cooperates with the card release operating member to block the card release operating member, and the card release operating member is pressed to retract into the fixed seat and rotate, so that the pushing protrusion pushes the sliding member to slide upward.

[0010] Preferably, the bottom of the sliding member is provided with a push-receiving inclined surface which is arranged obliquely relative to the sliding direction of the sliding member, and the pushing protrusion abuts against the push-receiving inclined surface of the sliding member.

[0011] Preferably, the anti-misuse height adjustment mechanism of the present invention further includes a connecting member, the engaging member is installed at a first end of the connecting member, the sliding member is slidably disposed at a second end of the connecting member, and the elastic member is disposed between the sliding member and the connecting member.

[0012] Preferably, the sliding member has a mounting cavity, the second end of the connecting member is movably disposed in the mounting cavity, and the elastic member is disposed in the mounting cavity.

[0013] Preferably, a blocking protrusion is provided at the end of the second end of the connecting member, the first end of the elastic member abuts against the blocking protrusion, and the second end of the elastic member abuts against the bottom wall of the mounting cavity in the sliding member.

[0014] Preferably, the engaging member includes an engaging portion and a pivoting portion, the first end of the pivoting portion is pivotally connected to the first end of the connecting member, the first end of the engaging portion is mounted on the second end of the pivoting portion and pivotally connected to the fixing seat, and the pivoting portion is pivotally arranged on the connecting member.

[0015] Preferably, the engaging member further comprises a pivot shaft, the first end of the pivot shaft is rotatably mounted on the fixing seat, the second end of the pivot portion is mounted on the second end of the pivot shaft, and the first end of the engaging portion is mounted on a portion between the two ends of the pivot shaft.

[0016] Preferably, the engaging portion is a block-shaped piece whose width gradually increases from the first end to the second end thereof, and a card insertion slope is provided on the bottom surface of the second end of the engaging portion.

[0017] Preferably, the anti-misuse height adjustment mechanism of the present invention further comprises a locking reset member disposed between the fixing seat and the connecting member, and the locking reset member always has a tendency to drive the connecting member to slide downward.

[0018] Preferably, the connecting member is a rod-shaped member, and the sliding direction of the sliding member is the same as the sliding direction of the connecting member.

[0019] Preferably, a slide rail is installed on the carrier frame, the fixing seat is slidably assembled on the slide rail, and all the segment-matching clamping parts are arranged on the slide rail at intervals from each other.

[0020] Preferably, the segment matching portion is a slot structure.

[0021] Preferably, the upper side wall of the segment matching portion is a sliding slope arranged inwardly from top to bottom.

[0022] Preferably, the fixing seat includes a long handle and a bracket installed at the lower end of the long handle, the card release operating member is arranged in the upper end of the long handle, and a ring is installed at the upper end of the long handle, and the ring is slidably mounted on the carrier frame.

[0023] To achieve the above object, the baby carrier of the present invention includes a carrier frame, a carrier body and the above-mentioned anti-misuse height adjustment mechanism, and the fixing seat is assembled on the carrier body.

[0024] Preferably, the carrier frame is a trolley frame or a baby dining chair frame.

[0025] Preferably, the carrier body is a baby sleeping box, a safety seat or a baby dining chair.

[0026] Compared with the prior art, the anti-misuse height adjustment mechanism of the present invention includes a clamping member, an elastic member, a card release operating member, a fixed seat, a sliding member slidably arranged in the fixed seat, and a connecting member. The fixed seat is slidably arranged on the carrier frame and is slidably adjusted relative to the carrier frame. The carrier frame has at least two segment matching parts. The clamping member is movably assembled on the fixed seat and selectively engaged with any segment matching part. The card release operating member is movably installed on the fixed seat. The card release operating member is also linked to the clamping member through the elastic member, and the force of the card release operating member driving the elastic member to generate elastic deformation during the card release process is smaller than the force generated by the fixed seat and the carrier on the fixed seat. The resistance to the card-releasing movement of the blocking engaging member generated by the two bodies is so great that even after the card-releasing operating member is operated to release the card, since the carrier body is not adjusted upward, there is a lack of a force to lift the carrier body to balance the resistance to the card-releasing movement of the blocking engaging member generated by the fixed seat and the carrier body. Therefore, the engaging member always remains engaged with the one-stage matching portion, and the carrier body remains locked on the carrier frame. The height of the carrier body cannot be adjusted. Therefore, during the height adjustment process of the carrier body, the carrier body must be lifted upward to release the anti-misuse height adjustment mechanism, thereby effectively avoiding accidental release caused by accidental touch.

[0027] It is understandable that, since the baby carrier of the present invention includes a carrier frame, a carrier body and an anti-misuse height adjustment mechanism, the baby carrier of the present invention can avoid accidental release of the carrier body on the carrier frame due to accidental contact, thereby effectively ensuring safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the baby carrier of the present invention.

[0029] Figure 2 It is a schematic diagram of the three-dimensional structure of the carrier frame of the baby carrier of the present invention.

[0030] Figure 3 yes Figure 2 Schematic diagram of the three-dimensional structure of the anti-misuse height adjustment mechanism on the carrier frame after hiding its fixing seat from another angle.

[0031] Figure 4 yes Figure 3 The three-dimensional structure diagram of the vehicle skeleton is shown after hiding part of its structure.

[0032] Figure 5 yes Figure 4 The illustrated three-dimensional structural diagram of the anti-misuse height adjustment mechanism on the carrier frame after hiding its fixing seat and its partial structure enlarged schematic diagram.

[0033] Figure 6 yes Figure 5 The illustrated three-dimensional structural diagram of the anti-misuse height adjustment mechanism on the carrier frame after the card release operating member is pressed and an enlarged schematic diagram of its partial structure.

[0034] Figure 7 yes Figure 5 A schematic diagram of the three-dimensional structure of the middle carrier frame and the anti-misuse height adjustment mechanism thereon from another angle and an enlarged schematic diagram of its partial structure.

[0035] Figure 8 yes Figure 6 A schematic diagram of the three-dimensional structure of the middle carrier frame and the anti-misuse height adjustment mechanism thereon from another angle and an enlarged schematic diagram of its partial structure.

[0036] Fig. 9 It is a three-dimensional structural schematic diagram of the engaging member in the anti-misuse height adjustment mechanism of the present invention.

[0037] Fig.10 A schematic plan view of the structure of the anti-misuse height adjustment mechanism of the present invention when the engaging member is disengaging from the segment matching portion when the card release operating member is pressed down and the carrier body is adjusted upward.

[0038] Fig.11 A schematic diagram of the planar structure of the anti-misuse height adjustment mechanism of the present invention after the engaging member is disengaged from the segment matching portion when the card release operating member is pressed down and the carrier body is adjusted upward. DETAILED DESCRIPTION

[0039] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the implementation modes and the accompanying drawings.

[0040] like Figure 1 and Figure 2As shown, the baby carrier 100 of the present invention includes a carrier frame 10, a carrier body 20 and an anti-misuse height adjustment mechanism 30. The fixing seat 34 in the anti-misuse height adjustment mechanism 30 described below is assembled on the carrier body 20. The fixing seat 34 is slidably arranged on the carrier frame 10 and slides and adjusts relative to the carrier frame 10. When adjusting the height of the carrier body 20, the carrier body 20 needs to be lifted up to adjust the height, so as to avoid misoperation of the height adjustment of the carrier body 20. Thus, the baby carrier 100 of the present invention can avoid accidental contact and cause the accidental release of the carrier body 20 on the carrier frame 10, effectively ensuring safety in use. For example, the carrier body 20 is mainly a device for supporting infants and young children, such as a baby sleeping box, a safety seat or a baby dining chair, but is not limited thereto. The carrier frames 10 are mainly divided into two categories. One category is the carrier frames 10 that can provide a mobile function, such as a stroller frame, and the other category is the carrier frames 10 that can provide a fixed support function, such as a baby dining chair frame, but not limited thereto. In summary, those skilled in the art can connect the carrier body 20 to the existing carrier frame 10 according to the actual needs without any creative labor, so as to be used in combination according to the actual needs, so it will not be described in detail here. Figures 2 to 11 The anti-misuse height adjustment mechanism 30 of the present invention is further described in detail:

[0041] like Figures 2 to 8As shown, the anti-misuse height adjustment mechanism 30 includes a snap-fitting member 31, an elastic member 32, a card-releasing operating member 33, a fixing seat 34, a sliding member 35 slidably arranged in the fixing seat 34, and a connecting member 36. The fixing seat 34 is slidably arranged on the carrier frame 10 and slides and adjusts relative to the carrier frame 10. The carrier frame 10 has at least two segment matching parts 11. The snap-fitting member 31 is movably assembled on the fixing seat 34 and selectively engages with any segment matching part 11. The card-releasing operating member 33 is movably installed on the fixing seat 34. The card-releasing operating member 33 is also linked to the snap-fitting member 31 through the elastic member 32, and the force of the card-releasing operating member 33 driving the elastic member 32 to generate elastic deformation during the card release process is smaller than the force generated by the fixing seat 34 and the fixing seat 34. Therefore, even after the release operation member 33 is operated to release the card, since the carrier body 20 is not adjusted upward, there is a lack of a force to lift the carrier body 20 to balance the resistance of the blocking engagement member 31 to release the card, so the engagement member 31 is always engaged with the first-stage matching portion 11, and the carrier body 20 is locked on the carrier frame 10. The carrier body 20 cannot be adjusted in height. Therefore, during the height adjustment process of the carrier body 20, the carrier body 20 must be lifted upward to release the anti-misuse height adjustment mechanism 30, thereby effectively avoiding accidental release caused by accidental touch. For example, the elastic member 32 is a compression spring. Of course, according to actual needs, the elastic member 32 can also be set as a pair of magnetic members with opposite polarities, wherein the positive member is installed on the connecting member 36 and the negative member is installed on the sliding member 35, so it is not limited to this. Specifically, the sliding member 35 is connected to the elastic member 32 in a blocking manner, and the card release operating member 33 pushes the sliding member 35 to slide upward during the card release process, and the sliding member 35 sliding upward pushes the elastic member 32 to elastically deform, so as to facilitate the elastic deformation of the elastic member 32. More specifically, the engaging member 31 is installed at the first end of the connecting member 36, the sliding member 35 is slidably arranged at the second end of the connecting member 36, and the elastic member 32 is arranged between the sliding member 35 and the connecting member 36. By means of the arrangement of the connecting member 36, the linkage structure between the operating member 33 and the engaging member 31 is simplified. In order to facilitate the resetting of the engaging member 31 and engage with the segment matching portion 11 on the carrier frame 10, the anti-misuse height adjustment mechanism 30 also includes a locking reset member 37 arranged between the fixing seat 34 and the connecting member 36, and the locking reset member 37 always has a tendency to drive the connecting member 36 to slide downward.

[0042] like Figures 4 to 8As shown, the card release operating member 33 is hinged on the fixed seat 34 in a telescopic manner. When the card release operating member 33 is pressed, it rotates and retracts into the fixed seat 34 to release the card, so the card release operating member 33 is easy to operate. Specifically, the card release operating member 33 is provided with a push protrusion 331 protruding outward, and a positioning notch 332 is surrounded between the push protrusion 331 and the card release operating member 33. The sliding member 35 is arranged in the positioning notch 332 and blocks and cooperates with the card release operating member 33. When the card release operating member 33 is pressed, it retracts into the fixed seat 34 and rotates, so that the push protrusion 331 pushes the sliding member 35 to slide upward. Therefore, the linkage structure of the card release operating member 33 and the sliding member 35 is simple and easy to implement, which is conducive to reducing the difficulty and cost of production. More specifically, the bottom of the sliding member 35 is provided with a push inclined surface 351 which is arranged obliquely relative to the sliding direction of the sliding member 35, and the pushing protrusion 331 is pressed against the push inclined surface 351 of the sliding member 35. The setting of the push inclined surface 351 on the sliding member 35 can facilitate the card release operating member 33 to push the sliding member 35 to slide.

[0043] like Figures 5 to 8 As shown, the sliding member 35 has a mounting cavity 352, the second end of the connecting member 36 is movably disposed in the mounting cavity 352, and the elastic member 32 is disposed in the mounting cavity 352. The sliding member 35 can slide smoothly on the connecting member 36 by means of the cooperation between the mounting cavity 352 and the connecting member 36, which is also conducive to hiding the elastic member 32 and further simplifying the structure. Specifically, a blocking protrusion 361 is disposed at the end of the second end of the connecting member 36, the first end of the elastic member 32 abuts against the blocking protrusion 361, and the second end of the elastic member 32 abuts against the bottom wall of the mounting cavity 352 in the sliding member 35, so that the elastic member 32 is stably installed in the mounting cavity 352.

[0044] like Figures 5 to 9As shown, the engaging member 31 includes an engaging portion 311 and a pivoting portion 312, wherein the first end of the pivoting portion 312 is pivotally connected to the first end of the connecting member 36, the first end of the engaging portion 311 is mounted on the second end of the pivoting portion 312 and is pivotally connected to the fixing seat 34, and the pivoting portion 312 is pivotally arranged on the connecting member 36. The arrangement of the pivoting portion 312 allows the engaging member 31 to be displaced and rotated at the same time, so as to facilitate the engaging member 31 to be effectively and stably engaged with and disengaged from the upper segment matching portion 11 of the carrier frame 10. Preferably, a rotating shaft 3121 perpendicular to the rotating shaft 312 is provided at the first end of the pivoting portion 312, and the pivoting portion 312 is pivotally connected to the first end of the connecting member 36 via the rotating shaft 3121, so as to facilitate the pivoting of the pivoting portion 312. Specifically, the engaging member 31 further comprises a pivot shaft 313, the first end of the pivot shaft 313 is rotatably mounted on the fixing seat 34, the second end of the pivot part 312 is mounted on the second end of the pivot shaft 313, and the first end of the engaging member 311 is mounted on the portion between the two ends of the pivot shaft 313. The setting of the pivot shaft 313 provides a fulcrum for the engaging member 31 to rotate, which facilitates the rotation of the engaging member 31. More specifically, the engaging member 311 is a block-shaped member whose width gradually increases from the first end to the second end. A card insertion slope 314 is provided on the bottom surface of the second end of the engaging member 311. The width of the second end of the engaging member 311 is relatively wide and is not easily crushed, and the card insertion slope 314 facilitates the engaging member 311 to be inserted into or withdrawn from the segment matching card part 11. Preferably, the connecting member 36 is a rod-shaped member, and the sliding direction of the sliding member 35 is the same as that of the connecting member 36. Therefore, the structure of the connecting member 36 is simple and easy to arrange and process. The sliding of the sliding member 35 and the connecting member 36 in the same direction greatly simplifies the structure of the anti-misuse height adjustment mechanism 30, making the structure of the anti-misuse height adjustment mechanism 30 more compact. Preferably, because the rotation direction of the card release operating member 33 is different from that of the engaging member 31, the connecting member 36 will be accompanied by a small swing during the sliding process.

[0045] like Figures 2 to 8As shown, a slide rail 12 is installed on the carrier frame 10, and a fixing seat 34 is slidably mounted on the slide rail 12. All the segment-matching clamping parts 11 are arranged on the slide rail 12 at intervals from each other, so that the fixing seat 34 can slide quickly and smoothly on the carrier frame 10 along the slide rail 12, so as to facilitate and quickly adjust the height of the carrier body 20 on the carrier frame 10. For example, the segment-matching clamping part 11 is a slot structure, such as a countersunk hole structure, to facilitate the engagement of the engaging member 31 with the segment-matching clamping part 11, but it is not limited to this. Specifically, the upper side wall of the segment-matching clamping part 11 is a sliding inclined surface 111 arranged inwardly from top to bottom. When the carrier body 20 is adjusted upward, it can drive the engaging member 31 to move upward, so that the sliding inclined surface 111 can be used to quickly push out the engaging part 311 in the engaging member 31, so as to facilitate quick release. More specifically, the fixing seat 34 includes a long handle portion 341 and a supporting seat portion 342 installed at the lower end of the long handle portion 341, and the card release operating member 33 is arranged in the upper end of the long handle portion 341. A ring 343 is installed at the upper end of the long handle portion 341, and the ring 343 is slidably mounted on the carrier frame 10. The ring 343 can limit the dislocation of the fixing seat 34, so that the fixing seat 34 can slide stably on the carrier frame 10, and the carrier body 20 can be assembled to the carrier frame 10 using the supporting seat portion 342, which is convenient for the disassembly and assembly between the carrier body 20 and the carrier frame 10. For example, the supporting seat portion 342 has a card cavity, which is convenient for the carrier body 20 to be inserted into the card cavity. The card release operating member 33 arranged at the upper end of the long handle portion 341 can facilitate people's operation.

[0046] Combined with Figures 1 to 11, the working principle of the baby carrier 100 of the present invention is explained as follows: when in use, the carrier body 20 is engaged with the supporting seat portion 342 of the fixing seat 34. When the height of the carrier body 20 needs to be adjusted, the card release operation 33 is pressed down and rotated and retracted into the fixing seat 34. The pushing protrusion 331 on the card release operation member 33 pushes the sliding member 35 to slide upward. The sliding member 35 sliding upward continuously compresses the elastic member 32 upward. However, at this time, due to the weight of the fixing seat 34 and the carrier body 20 themselves, the engaging portion 311 of the engaging member 31 is always engaged with the first-stage matching portion 11, and the card insertion inclined surface 314 of the engaging portion 311 of the engaging member 31 is always kept against the bottom surface of the first-stage matching portion 11, and the engaging member 31 cannot move, which can prevent the carrier body 20 from being released due to accidental touching of the card release operation member 33. When the carrier body 20 is adjusted upward, the card insertion slope 314 of the engaging portion 311 of the engaging member 31 is disengaged from the abutment with the level matching portion 11, and the elastic member 32 recovers its deformation at this time, and the elastic member 32 pushes the connecting member 36 to slide upward, and the connecting member 36 drives the pivoting portion 312 of the engaging member 31 to pivot, and the pivot shaft 313 rotates around its own axis, thereby driving the engaging portion 311 of the engaging member 31 to rotate, and the engaging portion 311 of the engaging member 31 is disengaged from the level matching portion 11, and the height of the carrier body 20 can be adjusted. Because the carrier body 20 must be lifted upward to release the anti-misuse height adjustment mechanism 30 during the height adjustment of the carrier body 20, the accidental release caused by accidentally touching the release operating member 33 can be effectively avoided, and the working principle is as described above.

[0047] Compared with the prior art, the anti-misuse height adjustment mechanism 30 of the present invention includes a snap-fitting member 31, an elastic member 32, a card-releasing operating member 33, a fixing seat 34, a sliding member 35 slidably arranged in the fixing seat 34, and a connecting member 36. The fixing seat 34 is slidably arranged on the carrier frame 10 and slides and adjusts relative to the carrier frame 10. The carrier frame 10 has at least two segment matching parts 11. The snap-fitting member 31 is movably assembled on the fixing seat 34 and selectively engages with any segment matching part 11. The card-releasing operating member 33 is movably installed on the fixing seat 34. The card-releasing operating member 33 is also linked with the snap-fitting member 31 through the elastic member 32. The force of the card-releasing operating member 33 driving the elastic member 32 to generate elastic deformation during the card release process is smaller than that caused by the fixing seat 34 and the fixing seat 34. The resistance generated by the carrier body 20 on the fixing seat 34 to the card release movement of the engaging member 31 is such that even after the card is released by operating the card release operating member 33, since the carrier body 20 is not adjusted upward, there is a lack of a force to lift the carrier body 20 to balance the resistance generated by the fixing seat 34 and the carrier body 20 to the card release movement. Therefore, the engaging member 31 always remains engaged with the first-stage matching portion 11, and the carrier body 20 remains locked on the carrier frame 10. The height of the carrier body 20 cannot be adjusted. Therefore, during the height adjustment process of the carrier body 20, the carrier body 20 must be lifted upward to release the anti-misuse height adjustment mechanism 30, thereby effectively avoiding accidental release caused by accidental touch.

[0048] It is understandable that, since the baby carrier 100 of the present invention includes a carrier frame 10, a carrier body 20 and an anti-misuse height adjustment mechanism 30, the baby carrier 100 of the present invention can prevent accidental contact from causing the carrier body 20 to be accidentally unlocked on the carrier frame 10, thereby effectively ensuring safety in use.

[0049] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.

Claims

1. An anti-misuse height adjustment mechanism, provided on a baby carrier, the baby carrier comprising a carrier frame and a carrier body, characterized in that: The anti-misuse height adjustment mechanism includes a locking member, an elastic member, a card release operating member and a fixed seat for assembly and connection with the carrier body, the fixed seat is slidably disposed on the carrier frame and is slidably adjusted relative to the carrier frame, the carrier frame has at least two segment-matching parts, the locking member is movably assembled on the fixing seat and selectively engages with any of the segment-matching parts, the card release operating member is movably installed on the fixing seat, the card release operating member is also linked to the locking member through the elastic member, and the force of the card release operating member to drive the elastic member to produce elastic deformation during the card release process is less than the resistance generated by both the fixing seat and the carrier body on the fixing seat that blocks the locking member from releasing the card.

2. The anti-misuse height adjustment mechanism according to claim 1, characterized in that: The card release operating member is hinged to the fixing seat in a telescopic manner, and the card release operating member is rotated and retracted into the fixing seat when pressed to release the card.

3. The anti-misuse height adjustment mechanism according to claim 1, characterized in that: It also includes a sliding member slidably arranged in the fixing seat, the sliding member is connected to the elastic member for blocking, the card release operating member pushes the sliding member to slide upward during the card release process, and the sliding member sliding upward pushes the elastic member to elastically deform.

4. The anti-misuse height adjustment mechanism according to claim 3, characterized in that: The card release operating member is provided with a pushing protrusion protruding outward, and a positioning notch is surrounded by the pushing protrusion and the card release operating member. The sliding member is arranged in the positioning notch and cooperates with the card release operating member to block the card release operating member. The card release operating member is pressed and retracted into the fixed seat for rotation, so that the pushing protrusion pushes the sliding member to slide upward.

5. The anti-misuse height adjustment mechanism according to claim 4, characterized in that: The bottom of the sliding member is provided with a push-receiving inclined surface which is arranged obliquely relative to the sliding direction of the sliding member, and the pushing protrusion abuts against the push-receiving inclined surface of the sliding member.

6. The anti-misuse height adjustment mechanism according to claim 3, characterized in that: It also includes a connecting member, the engaging member is installed at a first end of the connecting member, the sliding member is slidably arranged at a second end of the connecting member, and the elastic member is arranged between the sliding member and the connecting member.

7. The anti-misuse height adjustment mechanism according to claim 6, characterized in that: The sliding member has an installation cavity, the second end of the connecting member is movably arranged in the installation cavity, and the elastic member is arranged in the installation cavity.

8. The anti-misuse height adjustment mechanism according to claim 7, characterized in that: A blocking protrusion is disposed at the end of the second end of the connecting member, the first end of the elastic member abuts against the blocking protrusion, and the second end of the elastic member abuts against the bottom wall of the mounting cavity in the sliding member.

9. The anti-misuse height adjustment mechanism according to claim 6, characterized in that: The engaging member includes an engaging portion and a pivoting portion, wherein the first end of the pivoting portion is pivotally connected to the first end of the connecting member, the first end of the engaging portion is mounted on the second end of the pivoting portion and is pivotally connected to the fixing seat, and the pivoting portion is pivotally arranged on the connecting member.

10. The anti-misuse height adjustment mechanism according to claim 9, characterized in that: The engaging member also includes a pivot shaft, the first end of the pivot shaft is rotatably mounted on the fixing seat, the second end of the pivot portion is mounted on the second end of the pivot shaft, and the first end of the engaging portion is mounted on the portion between the two ends of the pivot shaft.

11. The anti-misuse height adjustment mechanism according to claim 9, characterized in that: The clamping part is a block-shaped piece whose width gradually increases from the first end to the second end thereof, and a card insertion inclined surface is arranged on the bottom surface of the second end of the clamping part.

12. The anti-misuse height adjustment mechanism according to claim 6, characterized in that: It also includes a locking and restoring member disposed between the fixing seat and the connecting member, and the locking and restoring member always has a tendency to drive the connecting member to slide downward.

13. The anti-misuse height adjustment mechanism according to claim 6, characterized in that: The connecting member is a rod-shaped member, and the sliding direction of the sliding member is the same as the sliding direction of the connecting member.

14. The anti-misuse height adjustment mechanism according to claim 1, characterized in that: A slide rail is installed on the carrier frame, the fixing seat is slidably assembled on the slide rail, and all the segment-matching card parts are arranged on the slide rail at intervals.

15. The anti-misuse height adjustment mechanism according to claim 1, characterized in that: The segment card matching portion is a slot structure.

16. The anti-misuse height adjustment mechanism according to claim 15, characterized in that: The upper side wall of the segment matching card portion is a sliding inclined surface which is arranged inwardly from top to bottom.

17. The anti-misuse height adjustment mechanism according to claim 1, characterized in that: The fixing seat includes a long handle and a bracket installed at the lower end of the long handle. The card release operating member is arranged in the upper end of the long handle. A sleeve ring is installed at the upper end of the long handle. The sleeve ring is slidably mounted on the carrier frame.

18. A baby carrier, comprising a carrier frame and a carrier body, characterized in that: The baby carrier further comprises an anti-misuse height adjustment mechanism according to any one of claims 1 to 17, and the fixing seat is assembled on the carrier body.

19. The infant carrier according to claim 18, characterized in that: The carrier frame is a trolley frame or a baby dining chair frame.

20. The infant carrier according to claim 18, characterized in that: The carrier body is a baby sleeping box, a safety seat or a baby dining chair.

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