TWI793497B - Stroller and seat height adjusting mechanism thereof - Google Patents

Abstract

The present invention discloses a seat height adjusting mechanism disposed on a stroller frame of a stroller. The seat height adjusting mechanism includes a holding base. The holding base is assembled with a seat and is slidable upward and downward along the stroller frame for adjusting a height of the seat mounted on the holding base relative to the stroller frame. The seat height adjusting mechanism of the present invention can utilize upward and downward sliding of the holding base relative to the stroller frame to adjust the height of the seat mounted on the holding base relative to the stroller frame for infants with different heights. In addition, the present invention further discloses a stroller including the seat height adjusting mechanism.

Description

Baby stroller and its seat height adjustment mechanism

The invention relates to the field of products for infants and young children, in particular to a stroller and a seat height adjustment mechanism thereof.

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

Among them, the use of the baby stroller by the user is very convenient for the user to take care of the baby when going out, so the baby stroller is sought after by people.

But in existing stroller, the position of its seat on the vehicle frame is non-adjustable, therefore, make existing seat can't adjust the height position of seat on the vehicle frame according to the baby's height change, so The universality of existing strollers is poor.

Therefore, there is an urgent need for a baby stroller capable of flexibly adjusting the height of the seat according to the height of the baby and its seat height adjustment mechanism to overcome the above-mentioned problems.

An object of the present invention is to provide a seat height adjustment mechanism that can flexibly adjust the seat height position according to the baby's height change.

Another object of the present invention is to provide a baby stroller that can flexibly adjust the height of the seat according to the height of the baby.

To achieve the above object, the seat height adjustment mechanism of the present invention is arranged on the frame of the baby stroller, and includes a bearing seat for assembly with the seat. The bearing seat is slid on the frame along the up and down direction of the frame, The height position of the seat on the carrying seat on the vehicle frame is adjusted by the sliding up and down of the carrying seat relative to the vehicle frame.

Preferably, the seat height adjustment mechanism of the present invention further includes a locking member, an unlocking operating member linked with the locking member, and a fixing member installed on the vehicle frame. One of the bearing seats and one of them has at least one locking position and one unlocking position, and the other of the fixing part and the bearing seat is provided with at least two segment matching parts spaced apart from each other along the sliding direction of the bearing seat, locking The piece is in the locked position when it is selectively locked with any one of the segment matching parts, and the unlocking operation part is linked with the locking part to disengage from locking with any one of the segment matching parts, so that the locking part is in the unlocking position.

Preferably, the seat height adjustment mechanism of the present invention further includes at least two locking parts spaced apart from each other along the sliding direction of the bearing seat, an unlocking operating part that is simultaneously linked with all the locking parts, and a fixing device installed on the vehicle frame. The bearing seat is slidably arranged on the fixing piece, the locking piece is installed on one of the fixing piece and the bearing seat and has at least one locking position and one unlocking position, and the other of the fixing piece and the bearing seat has a segment matching Lock part, any locking part is in the locking position when selectively locked with the segment matching lock part, and the unlocking operation part links all the locking parts to perform the unlocking movement together, and any locking part breaks away from the lock with the segment matching lock part. together in the unlocked position.

Preferably, the seat height adjustment mechanism of the present invention further includes a return elastic member, the return elastic member is arranged on the locking member and the bearing seat or the fixing member having the locking member, and the reset elastic member always has a function of driving the locking member from the unlocked position Tendency to switch to locked position.

Preferably, at least one of the locking part and the segment matching part has an inclined structure that is inclined relative to the sliding direction of the bearing seat, and during the upward sliding process of the bearing seat, the locking part is switched from the locked position through the inclined structure to the unlocked position.

Preferably, the inclined structure of the locking part installed on the bearing seat is located on the upper side of the locking part, and correspondingly, the inclined structure of the segment matching part provided by the fixing part is located on the upper side of the segment matching part; or, it is installed on the The inclined structure of the locking part on the fixing part is located at the lower side of the locking part, and correspondingly, the inclined structure of the segment matching part provided by the bearing seat is located at the lower side of the segment matching part.

Preferably, the locking member is arranged to slide, and the sliding direction of the locking member is intersected with the sliding direction of the bearing seat.

Preferably, the unlocking operation part and the locking part share an integral structure.

Preferably, the unlocking operation part and the locking part are independent of each other.

Preferably, the seat height adjustment mechanism of the present invention further includes a flexible traction member, and the unlocking operation member is linked to the locking member through the traction member.

Preferably, the first end of the traction member is connected to the release operating member installed on the vehicle frame, and the second end of the traction member is connected to the locking member installed on the fixing member.

Preferably, the seat height adjustment mechanism of the present invention further includes a turntable pivotally connected to the vehicle frame, the turntable has a first mounting portion and a second mounting portion distributed on both sides of the centerline of the turntable, and the release operation member and the second mounting portion A mounting part is connected, and the first end of the traction member is connected with the second mounting part.

Preferably, the seat height adjustment mechanism of the present invention further includes a push-pull rod, the push-pull rod is slidably arranged on the fixing piece or the load-bearing seat along the sliding direction of the bearing seat, the second end of the traction member is installed on the push-pull rod, and the push-pull rod Linked with the lock.

Preferably, the first end of the traction member is connected to the release operating member installed on the seat, and the second end of the traction member is connected to the locking member installed on the bearing seat.

Preferably, the seat height adjustment mechanism of the present invention further includes a transmission part movably arranged on the seat, the transmission part is linked with the release operation part, and the first end of the traction part is installed on the transmission part.

Preferably, the release operation part and the transmission part are respectively slidably arranged on the seat, and the sliding directions of the release operation part and the transmission part intersect.

Preferably, the locking member is pivotally arranged, and the unlocking operation member and the locking member are of an integral structure.

Preferably, the locking part and the unlocking operating part are respectively pivotally mounted on the bearing seat or the fixing part, and the locking part is linked to perform unlocking movement by means of the pivoting of the unlocking operating part.

Preferably, the position matching locking part is a slotted hole structure.

Preferably, the bearing seat is pivotally connected to the vehicle frame around a pivot center line, and the bearing seat has at least a first group of joints and a second group of joints spaced apart from each other along the rotation direction of the bearing seat, and the first group of joints is connected to the pivot center The distance of the line is different from the distance from the second set of joints to the pivot center line, and the seat is detachably mounted on the first set of joints or the second set of joints.

Preferably, the central angle between the first group of joints and the second group of joints is 90 degrees.

In order to achieve the above object, the baby stroller of the present invention includes a vehicle frame, a seat and a seat height adjustment mechanism. The frame includes the front foot, the rear foot, and the driver, and the front foot, the rear foot, and the driver can be extended and retracted; the seat height adjustment mechanism includes a bearing seat, which is slid on the frame along the up and down direction of the frame, and the seat group Connected to the bearing base, the height position of the seat on the bearing base on the vehicle frame is adjusted through the vertical sliding of the bearing base relative to the vehicle frame.

Preferably, the bearing seat is slidably arranged on the driver, the front foot or the rear foot along the vertical direction of the vehicle frame.

Preferably, the seat height adjustment mechanism further includes a locking piece, an unlocking operating piece linked with the locking piece, and a fixing piece installed on the frame, the bearing base is slidably arranged on the fixing piece, and the locking piece is installed on the fixing piece and the bearing base One of them has at least one locking position and one unlocking position, and the other one of the fixing part and the bearing seat is provided with at least two stages of locking parts spaced apart from each other along the sliding direction of the bearing seat. It is in the locked position when it is permanently locked with any segment matching lock part, and the unlocking operation part is linked with the locking part to disengage from locking with any segment matching lock part, so that the lock part is in the unlocking position.

Preferably, the seat height adjustment mechanism further includes at least two locking pieces spaced apart from each other along the sliding direction of the bearing seat, a release operation piece linked with all the locking pieces at the same time, and a fixing piece installed on the vehicle frame, The bearing seat is slidably installed on the fixing part, the locking part is installed on one of the fixing part and the bearing seat and has at least one locking position and one unlocking position, and the other of the fixing part and the bearing seat is provided with a section lock part , any locking part is in the locked position when selectively locked with the segment matching part, and the unlocking operation part links all the locking parts to perform the unlocking movement together, and any locking part is disengaged from locking with the segment matching part. place in the unlocked position.

Preferably, the seat height adjustment mechanism further includes a return elastic member, which is arranged on the locking member and the bearing seat or fixing member with the locking member, and the reset elastic member always has the function of driving the locking member to switch from the unlocked position to the locked position. Trends in position.

Preferably, at least one of the locking part and the segment matching part has an inclined structure that is inclined relative to the sliding direction of the bearing seat. During the upward sliding process of the bearing seat, the locking part is moved from the locking position to the locked position by the inclined structure. Switch to the unlocked position.

Preferably, the inclined structure of the locking part installed on the bearing seat is located on the upper side of the locking part, and correspondingly, the inclined structure of the segment matching part provided by the fixing part is located on the upper side of the segment matching part; or, it is installed on the The inclined structure of the locking part on the fixing part is located at the lower side of the locking part, and correspondingly, the inclined structure of the segment matching part provided by the bearing seat is located at the lower side of the segment matching part.

Preferably, the locking member is arranged to slide, and the sliding direction of the locking member is intersected with the sliding direction of the bearing seat.

Preferably, the unlocking operation part and the locking part are of an integral structure, and the seat and the bearing seat are detachably assembled.

Preferably, the seat height adjustment mechanism further includes a flexible traction member, the unlocking operation member and the locking member are independent of each other, and the unlocking operation member links the locking member through the traction member.

Preferably, the first end of the traction member is connected with the release operating member installed on the driver, and the second end of the traction member is connected with the locking member installed on the fixing member.

Preferably, the seat height adjustment mechanism further includes a turntable pivotally connected to the driver, the turntable has a first mounting portion and a second mounting portion distributed on both sides of the center line of the turntable, and the release operation member is connected to the first mounting portion , the first end of the traction member is connected to the second installation part, and the seat and the bearing seat are detachably assembled.

Preferably, the seat height adjustment mechanism further includes a push-pull rod, the push-pull rod is slidably arranged on the fixing piece or the load-bearing seat along the sliding direction of the bearing seat, the second end of the traction member is installed on the push-pull rod, and the push-pull rod and the lock Fixed pieces linked.

Preferably, the seat height adjustment mechanism further includes a transmission part movably arranged on the seat, the transmission part is linked with the release operation part, the first end of the traction part is installed on the transmission part, the second end of the traction part is connected to the Locking connection on the carrier.

Preferably, the release operation part and the transmission part are slidably arranged on the seat, and the sliding directions of the release operation part and the transmission part intersect.

Preferably, the locking member is pivotally arranged, and the unlocking operation member and the locking member are of an integral structure.

Preferably, the locking part and the unlocking operating part are respectively pivotally mounted on the bearing seat or the fixing part, and the locking part is linked to perform unlocking movement by means of the pivoting of the unlocking operating part.

Preferably, the bearing base is pivotally connected to the vehicle frame around a pivot centerline, the bearing base has at least a first set of joints and a second set of joints spaced from each other along the rotation direction of the bearing base, and the first set of joints is connected to the pivot centerline. The distance is different from the distance from the second set of joints to the pivot center line, and the seat is detachably installed on the first set of joints or the second set of joints.

Compared with the prior art, since the bearing base slides the vehicle frame along the up and down direction of the vehicle frame, the height position of the seat on the bearing base on the vehicle frame is adjusted by the vertical sliding of the bearing base relative to the vehicle frame. Therefore, According to the height of the baby, it can flexibly slide up and down the carrier seat relative to the frame, so as to adjust the height of the seat on the carrier seat on the frame. On the one hand, it is convenient for the adjustment operation of the operator; sex.

10: Frame

11: front foot

12: rear foot

13: Driver

20: seat

30, 30', 30", 30''', 40: seat height adjustment mechanism

31, 41: Bearing seat

32, 32': locking piece

33, 33': Unlock operating parts

34:Fixer

35: Duan lock department

36, 36': reset elastic piece

37: traction parts

38: turntable

39a: push-pull rod

39b: Transmission parts

41a: The first set of joints

41b: Second set of joints

100a, 100b, 100c, 100d, 100e, 100f: strollers

311: The first set of columns

312: The second set of columns

321, 351: Inclined structure

381: The first installation department

382:Second Installation Department

B, D: double arrow

L: Centerline

C: pivot centerline

Fig. 1 is a three-dimensional structure diagram of a baby stroller according to the first embodiment of the present invention.

Fig. 2 is a three-dimensional structure diagram of the stroller shown in Fig. 1 at another angle.

Figure 3 is a schematic diagram of the three-dimensional structure of the stroller shown in Figure 1 with the seat hidden.

Fig. 4 is a three-dimensional structure diagram of the baby stroller shown in Fig. 2 with the seat hidden.

Fig. 5 is a schematic perspective view of the three-dimensional structure of the fixing part in the baby stroller shown in Fig. 1 .

Fig. 6 is a three-dimensional structural schematic view of the locking part and the unlocking operating part in the baby stroller shown in Fig. 1 .

Fig. 7 is a cutaway view of the baby stroller shown in Fig. 1 and shows a schematic diagram of the internal structure of the locking member when it is locked with the segment matching portion and is in the locked position.

Fig. 8 is a cutaway view of the baby stroller shown in Fig. 1 and shows a schematic diagram of the internal structure of the locking part when it is released from the segment matching part and is in the unlocked position.

Fig. 9 is a three-dimensional structural schematic view of the baby stroller according to the second embodiment of the present invention.

Fig. 10 is a schematic diagram of the three-dimensional structure of the stroller shown in Fig. 9 at another angle.

Fig. 11 is a schematic diagram of the three-dimensional structure of the stroller shown in Fig. 9 at another angle.

Fig. 12 is a three-dimensional structure schematic diagram of the baby stroller in the third embodiment of the present invention behind the front legs of the hidden part.

Fig. 13 is a perspective view of the three-dimensional structure of the stroller shown in Fig. 12 at another angle.

Fig. 14 is a perspective view of the three-dimensional structure of the stroller shown in Fig. 12 at another angle.

Fig. 15 is a three-dimensional structure diagram of the baby stroller shown in Fig. 14 with the seat hidden.

Fig. 16 is a three-dimensional structural schematic diagram of the baby stroller shown in Fig. 12 when the bearing seat, the locking part and the unlocking operating part are installed together.

Fig. 17 is a three-dimensional structure diagram of a baby stroller according to the fourth embodiment of the present invention.

Fig. 18 is a structural schematic view of the unlocking operation part, the turntable, the traction part, the push-pull rod and the locking part in the baby stroller shown in Fig. 17 when they are linked.

Fig. 19 is a three-dimensional schematic diagram of the baby stroller shown in Fig. 17 when the rear feet are hidden.

Fig. 20 is an enlarged view of part A in Fig. 19.

Figure 21 is the vertical view of the baby stroller according to the fifth embodiment of the present invention when the seat is assembled on the first joint. Schematic diagram of the body structure.

Fig. 22 is a perspective view of the baby stroller according to the fifth embodiment of the present invention when the seat is assembled on the second set of joints.

Fig. 23 is a three-dimensional structure diagram of the baby stroller shown in Fig. 21 with the seat hidden.

Fig. 24 is a three-dimensional structure diagram of the baby stroller shown in Fig. 22 with the seat hidden.

Fig. 25 is a schematic perspective view of the three-dimensional structure of the baby stroller according to the sixth embodiment of the present invention.

Fig. 26 is a three-dimensional structure diagram of the baby stroller shown in Fig. 25 at another angle.

Fig. 27 is a perspective view of the three-dimensional structure of the stroller shown in Fig. 25 at another angle.

Fig. 28 is a three-dimensional structure diagram of the baby stroller shown in Fig. 25 with the seat hidden.

Fig. 29 is a three-dimensional structural schematic view of the baby stroller according to the sixth embodiment of the present invention when the release operation member, the transmission member and the traction member are installed together.

Fig. 30 is a three-dimensional structural diagram of the baby stroller according to the sixth embodiment of the present invention when the locking member is locked with a segment lock portion.

Fig. 31 is a three-dimensional structural schematic view of the baby stroller according to the sixth embodiment of the present invention when the locking part is released from a segment lock part.

Figure 32 is an exploded perspective view of the stroller shown in Figure 30.

Fig. 33 is an exploded perspective view of the stroller shown in Fig. 31.

In order to describe the technical content and structural features of the present invention in detail, further description will be given below in conjunction with the implementation and accompanying drawings.

Please refer to FIG. 1 to FIG. 8 , the baby stroller 100 a of the first embodiment of the present invention includes a frame 10 , a seat 20 and a seat height adjustment mechanism 30 . The vehicle frame 10 includes a front foot 11, a rear foot 12, and a driver 13, and the front foot 11, the rear foot 12, and the driver 13 can be unfolded and retracted so as to facilitate the folding operation of the vehicle frame 10; It is pivotally connected with the rear foot 12 and the front foot 11, so that the pivot joint between the rider 13 and the front foot 11 is in the In the front and lower part of the hinge joint between the driver 13 and the rear foot 12 , the structure of the hinge connection of the front foot 11 , the rear foot 12 and the driver 13 is simplified under the condition of ensuring that the folding operation of the frame 10 is convenient, but not limited thereto. The seat height adjustment mechanism 30 includes a carrying seat 31, which is movably arranged on the vehicle frame 10, and the seat 20 is assembled on the carrying seat 31, so that the seat 20 is assembled on the vehicle frame 10 through the carrying seat 31, therefore The height position of the seat 20 on the bearing seat 31 on the vehicle frame 10 is adjusted by the movement of the bearing base 31 relative to the vehicle frame 10 . Specifically, in this embodiment, the bearing seat 31 is slid on the rider 13 along the up and down direction of the vehicle frame 10, so that the bearing base 31 can slide up and down along the rider 13, so the bearing base 31 can slide up and down along the rider 13. During the sliding process, the bearing base 31 slides up and down relative to the vehicle frame 10 , thereby adjusting the height position of the seat 20 on the bearing base 31 on the vehicle frame 10 . It can be understood that, according to actual needs, the bearing seat 31 can also be slid on the front foot 11 or the rear foot 12 along the up and down direction of the vehicle frame 10 , so it is not limited thereto. When the vehicle frame 10 does not include the front feet 11, the rear feet 12 and the driver 13, the bearing seat 31 at this time is slid on the vehicle frame 10 along the up and down direction of the vehicle frame 10. The height position of the seat 20 on the carrier 31 on the vehicle frame 10 is adjusted by sliding, so the above examples are not limited. More specifically, as follows:

As shown in Figures 3 to 8, in order to ensure the reliability of the adjusted position of the bearing seat 31 on the driver 13, and to facilitate the adjustment operation of the operator on the bearing seat 31, the seat height adjustment mechanism 30 also includes a locking member 32. The unlocking operation part 33 linked with the locking part 32 and the fixing part 34 installed on the driver 13. The bearing seat 31 is slidably installed on the fixing member 34, so that the bearing seat 31 can be slid on the driver 13 by sliding on the fixing member 34; preferably, the bearing seat 31 and the fixing member 34 are fitted together , and the fixing member 34 is a straight rod structure to increase the sliding reliability between the bearing seat 31 and the fixing member 34, but not limited thereto. The locking member 32 is installed on the bearing seat 31, and the bearing seat 31 provides support for the locking member 32, and the locking member 32 has at least the locked position as shown in FIG. 7 and the unlocking position as shown in FIG. 8. The fixing member 34 is provided with at least two segment matching locks 35 spaced apart from each other along the sliding direction of the bearing seat 31 (see the double arrow B in Fig. 5). The locking piece 32 is in the locking position when it is selectively locked with any one of the segment matching parts 35, and the state is shown in Fig. 7; together, so that the locking member 32 is in the unlocked position position, the state is shown in Figure 8; for example, the segment matching lock part 35 is a slotted hole structure, such as a groove, blind hole or through hole, and its shape matches the shape of the locking piece 32, but this is all is well known in the art, so it will not be described in detail here.

As shown in Figures 7 and 8, in order to make the locking member 32 automatically switch to the locked position under normal conditions, the seat height adjustment mechanism 30 further includes a reset elastic member 36, which always has a driving locking member. 32 is a tendency to switch from the unlocked position to the locked position; specifically, since the locking member 32 is installed on the bearing seat 31, the reset elastic member 36 is arranged on the locking member 32 and the bearing seat 31 with the locking member 32, To simplify the installation relationship among the reset elastic member 36, the locking member 32 and the bearing seat 31, when the locking member 32 is installed on the fixing member 34, the reset elastic member 36 at this time is arranged on the locking member 32 and the fixing member 34 Therefore, it is not limited thereto; for example, the locking member 32 is set to slide, and the sliding direction of the locking member 32 (see the double arrow D in Figure 7 and Figure 8) and the sliding direction of the bearing seat 31 The moving directions (see the double arrows B in Fig. 7 and Fig. 8) are staggered, and this design can simplify the thickness occupation of the locking member 32 on the bearing seat 31. Since the locking member 32 is set to slide, correspondingly, the reset elastic member 36 is selected as a compression spring or a tension spring to further simplify the installation relationship among the reset elastic member 36, the locking member 32 and the bearing seat 31, but not limited to this. It can be understood that, according to actual needs, the locking member 32 can also be installed at the fixing member 34. Correspondingly, the carrying seat 31 is provided with at least two segment lock parts 35, which can also realize the adjustment and locking of the carrying seat 31. purpose, but not limited to. In addition, when the bearing seat 31 is slidably arranged on the front foot 11, the fixing member 34 is installed on the front foot 11 of the frame 10 at this time; when the bearing seat 31 is slidably arranged on the rear foot 12, the fixing member 34 is installed on the rear foot 12 Therefore, it is not limited to the above examples.

As shown in FIG. 5 to FIG. 8, the locking member 32 has an inclined structure 321 inclined relative to the sliding direction of the bearing seat 31, and the segment locking part 35 also has an inclined structure 351 inclined relative to the sliding direction of the bearing seat 31. During the upward sliding of the bearing seat 31, the locking member 32 is switched from the locking position to the unlocking position by the inclined structures 321, 351. The purpose of this design is: when the bearing seat 31 is adjusted upwards, no When the user operates the unlocking operating member 33, the user only needs to directly pull the seat 20 upwards, and then the user can The upward adjustment of the bearing seat 31 is realized, because the inclined structure 321 of the locking member 32 and the inclined structure 351 of the segment locking part 35 push each other during the upward sliding process of the bearing seat 31, so that the locking member 32 overcomes the reset elasticity The elastic force of the member 36 slides and retracts, thereby releasing the lock between the locking member 32 and the aligned segment locking portion 35 , thus allowing the bearing seat 31 to be adjusted upward. Specifically, the inclined structure 321 of the locking part 32 installed on the bearing seat 31 is located on the upper side of the locking part 32, and correspondingly, the inclined structure 351 of the segment matching part 35 provided by the fixing part 34 is located on the segment matching part 35. on the upper side, the state is shown in Figure 7 or Figure 8. It should be noted that, according to actual needs, the inclined structure 321 of the locking piece 32 installed on the fixing piece 34 can be designed to be located on the lower side of the locking piece 32, and correspondingly, the section provided by the bearing seat 31 can be locked. The inclined structure 351 of the section 35 is designed to be located on the lower side of the section lock section 351, but it is not limited thereto; in addition, according to actual needs, the lock piece 32 or the section lock section 35 can have an inclined structure, which can also be realized. The purpose of "the user does not need to operate the release operation member 33, but only needs to directly pull the upper end of the seat 20 upward to adjust the bearing seat 31 upward", is not limited thereto.

As shown in Fig. 6 and Fig. 7, the unlocking operation part 33 and the locking part 32 are in an integrated structure, and the purpose of this design is to achieve the purpose of unlocking the locking part 32 at a short distance through the unlocking operating part 33. And simplify the structure of both the unlocking operating part 33 and the locking part 32; because the unlocking operating part 33 and the locking part 32 have an integrated structure, the unlocking operating part 33 at this time is installed on the bearing seat 31 through the locking part 32, But not limited to this. It can be understood that, according to actual needs, the lock member 32, which is integrally structured together with the release operation member 33, can be pivotally arranged so that the release operation member 33 and the lock member 32 are pivoted together relative to the bearing seat 31 to achieve The purpose of locking or unlocking between the locking member 32 and the position matching locking portion 35 is, but not limited to. In order to facilitate the user to assemble and disassemble the seat 20, the seat 20 and the bearing seat 31 in the baby stroller 100a of the first embodiment are detachably assembled. Of course, according to actual needs, the seat 20 and the bearing seat 31 can be made into It is not detachable, so it is not limited to this.

The working principle of the baby stroller 100a of the first embodiment of the present invention will be described with reference to FIGS. Seat 20, so that the active force acting on the seat 20 is transmitted to the bearing seat 31, so that the bearing seat 31 has a tendency to slide upward; 321 and the inclined structure 351 of the segment matching lock part 35 push each other, so that the locking part 32 overcomes the elastic force of the reset elastic part 36 and slides and retracts, so that the locking part 32 is aligned with one of the segment matching locking parts 35 Release the lock between them, thus allowing the bearing seat 31 to be adjusted upwards together with the seat 20 until the locking piece 32 is aligned with another section matching lock portion 35 again. The lower part is automatically locked with the aligned section matching lock part 35 to fix the position of the bearing seat 31 on the driver 13 after the position adjustment. When the height position of the seat 20 on the vehicle frame 10 is to be adjusted downward, the user operates the unlocking operating member 33, and the unlocking operating member 33 together with the locking member 32 overcomes the elastic force of the reset elastic member 36 together with the locking member 32. The aligned segment locking parts 35 are unlocked, thereby allowing the carrying base 31 to be adjusted downward together with the seat 20 .

Please refer to Fig. 9 to Fig. 11, the structure of the baby stroller 100b of the second embodiment of the present invention is basically the same as that of the baby stroller 100a of the first embodiment, the only difference lies in the seat height adjustment mechanism 30 in the two There is a slight difference in the installation position of the vehicle frame 10, as follows:

In the second embodiment, the bearing seat 31 of the seat height adjustment mechanism 30 is slidably arranged at the rear foot 12 of the vehicle frame 10, specifically, the fixing member 34 of the seat height adjustment mechanism 30 is installed at the rear foot 12, so that the load The seat 31 is slidably arranged at the fixing part 34 of the rear foot 12; and in the first embodiment, the bearing seat 31 of the seat height adjustment mechanism 30 is slidably arranged at the driver 13 of the vehicle frame 10, specifically the seat height adjustment mechanism The fixing part 34 of 30 is installed at the driver 13, so that the bearing seat 31 is slidably arranged at the fixing part 34 of the driver 13.

Although the installation positions of the seat height adjustment mechanism 30 on the vehicle frame 10 in the first embodiment and the second embodiment are slightly different, the seats in the first embodiment and the second embodiment The structure of the height adjustment mechanism 30 is completely the same, so the seat height adjustment principle of both is the same, so the working principle of the baby stroller 100b of the second embodiment will not be described in detail here. It is worth noting that although the seat height adjustment mechanism 30 in the first embodiment and the second embodiment only shows that the bearing seat 31 is slidably arranged at the driver 13 or the rear foot 12, of course, according to actual needs, the first embodiment and the second embodiment Seat height adjustment in the second embodiment The bearing seat 31 of the whole mechanism 30 can also be slidably arranged at the front foot 11, so the above examples are not limited; in addition, it should be noted that when the bearing seat 31 is slidably arranged at the front foot 11, the fixing member at this time 34 is installed at the front foot 11 to realize the purpose of sliding the bearing base 31 to the front foot 11 through the fixing part 34 .

Please refer to Fig. 12 to Fig. 16, the structure of the baby stroller 100c of the third embodiment of the present invention is basically the same as that of the baby stroller 100a of the first embodiment, the difference lies in the specific structure of the seat height adjustment mechanism in the two. Structure, the difference between them is explained below:

(1) In the third embodiment, the seat height adjustment mechanism 30' includes a bearing seat 31, which is slidably arranged on the front foot 11, specifically at the fixing part 34 of the front foot 11, so as to The purpose of sliding on the front foot 11 is achieved on the fixing part 34;

In the first embodiment, the seat height adjustment mechanism 30 includes a bearing seat 31 , and the bearing seat 31 is slidably disposed at the driver 13 , specifically at the fixing member 34 of the driver 13 .

It should be noted that, according to actual needs, the bearing seat 31 of the third embodiment can also be slidably disposed on the rear foot 12 or the rider 13, so the above examples are not limited.

(2) In the third embodiment, the seat height adjustment mechanism 30' includes a release operation part 33' and a lock part 32', and the release operation part 33' and the lock part 32' are independent of each other, that is, the release operation Part 33' is an independent component, and locking part 32' is also an independent component, so that the unlocking operation part 33' and the locking part 32' are linked together through a linkage structure; and in the first embodiment, the seat height adjustment mechanism 30 Including the release operation part 33 and the lock part 32, the release operation part 33 and the lock part 32 have an integrated structure, therefore, the release operation part 33 and the lock part 32 in the first embodiment are not connected by a third party. Realize linkage relationship.

(3) In the third embodiment, both the locking part 32' and the unlocking operating part 33' are pivotally mounted on the bearing seat 31, and the locking part 32' is linked by the pivoting of the unlocking operating part 33' Perform lock release movement; specifically, as shown in Figure 15 and Figure 16, the bearing seat 31 is provided with a first set column 311 and a second set column 312, and the middle part of the locking member 32' is set on the first set column 311 , the release operation part 33' is set on the second set column 312, the release operation part 33' is embedded and interlocked with the lock part 32', and the reset elastic part 36' is set on the first set Install the column 311, and one end of the reset elastic member 36' is in contact with the locking member 32', and the other end of the reset elastic member 36' is in contact with the bearing seat 31. For example, the reset elastic member 36' is a torsion spring. Of course, According to actual needs, it can be selected as a tension spring or a compression spring, etc., so it is not limited thereto; therefore, in the third embodiment, through the pivot of the unlocking operating member 33 ′, the pivot of the locking member 32 ′ is linked, by The pivoting locking part 32 ′ is released from the segment locking part 35 . It can be understood that, when both the locking member 32 ′ and the unlocking operating member 33 ′ are pivotably mounted on the fixing member 34 , the first sleeve column 311 and the second sleeve column 312 are supported by the fixing member 34 at this time. set up.

In the first embodiment, the locking member 32 is arranged to slide, and the locking member 32 and the unlocking operating member 33 are in an integrated structure. Therefore, in the first embodiment, the locking member 33 is used to drive the locking device. The sliding of the piece 32, so that the sliding locking piece 32 and the segment locking part 35 are released from each other.

Except for the above differences, others are the same as those of the first embodiment, so details are not repeated here.

The working principle of the baby stroller 100c according to the third embodiment of the present invention will be described in conjunction with Fig. 12 to Fig. 16: when the height of the seat 20 on the frame 10 needs to be adjusted upward, the user directly pulls the seat 20 upward , so that the force acting on the seat 20 is transmitted to the bearing seat 31, so that the bearing seat 31 has an upward sliding tendency; Under the mutual pushing action of the inclined structures 351 of the matching lock part 35, the locking part 32' overcomes the elastic force of the reset elastic part 36' and pivots and retracts, so that the locking part 32' is aligned with a segment of the matching lock part 35 The locks are released from time to time, thus allowing the bearing seat 31 to be adjusted upwards together with the seat 20 until the locking part 32' is aligned with another segment matching lock part 35 again. At this time, the locking part 32' is resetting the elastic part 36 Under the action of the reset elastic force, the other section matching lock part 35 that is aligned with it is automatically locked, so as to fix the position of the bearing seat 31 on the driver 13 after the position adjustment. When the height position of the seat 20 on the vehicle frame 10 is to be adjusted downward, the user operates the unlocking operating member 33 ′, and the unlocking operating member 33 ′ is linked with the locking member 32 ′ to overcome the force of the reset elastic member 36 ′. The elastic force releases the locking between the aligned segment locking parts 35 , thereby allowing the carrying seat 31 to be adjusted downward together with the seat 20 .

Please refer to the 17th figure to the 20th figure, the baby stroller 100d of the fourth embodiment of the present invention and the first The structures of the frame 10 and the seat 20 of both the baby stroller 100a of the embodiment are the same, and the seat height adjustment mechanism of both the baby stroller 100d of the fourth embodiment and the baby stroller 100a of the first embodiment Both include a bearing seat 31 , a locking member 32 , an unlocking operation member 33 and a fixing member 34 , the bearing seat 31 is slidably disposed on the fixing member 34 , and the fixing member 34 is mounted on the driver 13 . The differences are as follows:

(1) In the fourth embodiment, there are at least two locking pieces 32 spaced apart from each other along the sliding direction of the bearing seat 31, and the unlocking operation piece 33 is linked with all the locking pieces 32 at the same time, that is to say, by the same The unlocking operation part 33 moves together with all the locking parts 32 at the same time. The locking part 32 is installed on the fixing part 34 and has at least one locking position (see Fig. 18 and Fig. 20) and an unlocking position. The bearing seat 31 is provided with The segment matching lock part 35, therefore, any locking part 32 is in the locked position when selectively locked with the segment matching locking part 35, the state is shown in Figure 18 and Figure 20, and the unlocking operation part 33 is linked All the locking pieces 32 perform the unlocking movement together, and any locking piece 32 is disengaged from locking with the section lock part 35 and is in the unlocking position; it can be understood that, according to actual needs, the locking piece 32 can be installed at the bearing seat 31 , correspondingly, the fixing part 34 is provided with a position matching locking part 35, so the above examples are not limited.

In the first embodiment, the locking member 32 is installed on the bearing seat 31 and has at least one locking position and an unlocking position. The locking part 35 and the locking part 32 are in the locked position when they are selectively locked with any one of the matching locking parts 35 ;

(2) In the fourth embodiment, the release operation part 33 and the lock part 32 are independent of each other, that is, the release operation part 33 is an independent element, and the lock part 32 is also an independent element, so that the release operation part 33 and the lock part 32 are linked together through a linkage structure (such as the traction member 37, the turntable 38 and the push-pull rod 39a described below); and in the first embodiment, the unlocking operation member 33 and the locking member 32 are in an integrated structure, Therefore, no traction member 37 , turntable 38 and push-pull rod 39 a are provided between the unlocking operation member 33 and the locking member 32 .

(3) In the fourth embodiment, the seat height adjustment mechanism 30" additionally includes a flexible traction piece 37, and the unlocking operation piece 33 links the locking piece 32 through the traction piece 37 to realize the remote control of the locking piece 32. distance From the purpose of control; specifically, the first end of the traction member 37 is connected with the release operation member 33 installed on the driver 13, and the second end of the traction member 37 is connected with the locking member 32 installed on the fixing member 34; more specifically Specifically, the seat height adjustment mechanism 30" further includes a turntable 38 pivotally connected to the driver 13. The turntable 38 has a first installation part 381 and a second installation part 382 distributed on both sides of the center line L of the turntable 38. The unlocking operation The member 33 is connected to the first installation part 381, and the first end of the traction member 37 is connected to the second installation part 382, so that the sliding of the unlocking operation part 33 can be converted into the rotation of the turntable 38 around the center line L, so that the rotation The turntable 38 pulls the locking piece 32 through the traction piece 37 for the purpose of releasing the lock; in order to drive all the locking pieces 32 to move together more reliably, the seat height adjustment mechanism 30” also includes a push-pull rod 39a, and the push-pull rod 39a is along the bearing seat 31 The sliding direction is slidingly set on the fixing part 34, and the second end of the traction part 37 is installed on the push-pull rod 39a, and the push-pull rod 39a is linked with the locking part 32.

And in the first embodiment, since the locking member 32 and the unlocking operating member 33 of the seat height adjustment mechanism 30 are of an integrated structure, no traction member 37 or a rotating disk is provided between the locking member 32 and the unlocking operating member 33. 38 and push-pull rod 39a, so the height adjustment mechanism 30 is not provided with traction member 37, rotating disk 39 and push-pull rod 39a.

(4) In the fourth embodiment, the reset elastic member 36 is directly arranged between the push-pull rod 39a and the fixing member 34, so that the reset elastic member 36 drives the locking member 32 to reset through the push-pull rod 39a; and in the first embodiment , The reset elastic member 36 is directly arranged between the locking member 32 and the bearing seat 31 or the fixing member 15 where the locking member is located, so the reset elastic member 36 directly drives the locking member 32 to reset.

(5) In the fourth embodiment, as shown in Fig. 18 and Fig. 20, only the locking member 32 has an inclined structure 321; while in the first embodiment, the locking member 32 and the segment matching portion 35 each have a Inclined structures 321,351.

Except for the above differences, others are the same as those of the first embodiment, so details are not repeated here. It should be noted that the seat 31 in the seat height adjustment mechanism 30" of the fourth embodiment can be slidably installed on the front foot 11 or the rear foot 12 of the vehicle frame 10 according to actual needs. Correspondingly, the seat height adjustment mechanism 30" The fixing part 34 is installed on the front foot 11 or the rear foot 12, so it is not limited to the above examples.

With reference to Fig. 17 to Fig. 20, the working principle of the baby stroller 100d according to the fourth embodiment of the present invention The principle is explained: when the height position of the seat 20 on the vehicle frame 10 needs to be adjusted upward, the user directly pulls the seat 20 upward, so that the force acting on the seat 20 is transmitted to the bearing seat 31, so that the bearing seat 20 31 has a tendency to slide upwards; the bearing seat 31 with an upward sliding tendency is pushed by the slant structure 321 of the locking part 32 aligned with the sectional locking part 35 by means of the sectional locking part 35, so that all locking While sliding and retracting the parts 32 together, the push-pull rod 39a is also linked to overcome the elastic force of the reset elastic part 36 and slide upwards, so that the segment matching lock part 35 and a locking part 32 aligned with the segment matching lock part 35 Release the lock, thereby allowing the bearing seat 31 to be adjusted upwards together with the seat 20 until the section matching lock part 35 is aligned with the other locking part 32 again, and the push-pull rod 39a at this time is under the elastic force of the reset elastic part 36. Sliding down, the sliding push-pull rod 39a is linked with the segment matching lock part 35 to automatically lock with a locking piece 32 aligned with it, so as to fix the position of the adjusted bearing seat 31 on the driver 13 . When the height position of the seat 20 on the vehicle frame 10 is to be adjusted downward, the user operates the unlocking operating member 33, and the unlocking operating member 33 drives the turntable 38 to rotate around the centerline L, so that the rotating turntable 38 Pull the push-pull rod 39a through the traction member 37 to overcome the elastic force of the reset elastic member 36 and slide upwards, so that the push-pull rod 39a that slides upwards links all the locking members 32 to slide and retract together, so that the segment matching lock part 35 is aligned with the A locking piece 32 of the section locking portion 35 is released, thereby allowing the carrying base 31 to be adjusted downward together with the seat 20 .

Please refer to FIG. 21 to FIG. 24 , the baby stroller 100 e according to the fifth embodiment of the present invention includes a frame 10 , a seat 20 and a seat height adjustment mechanism 40 . The vehicle frame 10 includes a front foot 11, a rear foot 12, and a driver 13, and the front foot 11, the rear foot 12, and the driver 13 can be unfolded and retracted so as to facilitate the folding operation of the vehicle frame 10; It is pivotally connected with the rear foot 12 and the front foot 11, so that the pivot joint between the driver 13 and the front foot 11 is located at the front and lower side of the pivot joint between the driver 13 and the rear foot 12, so as to simplify the front foot 11, The rear foot 12 and the driver 13 are pivotally connected, but not limited thereto. The seat height adjustment mechanism 40 includes a bearing base 41, the bearing base 41 is pivotally connected to the vehicle frame 10 around a pivot center line C, the bearing base 41 has at least a first group of joints 41a spaced apart from each other along the rotation direction of the bearing base 41 and For the second group of joints 41b, the distance from the first group of joints 41a to the pivotal centerline C is different from the distance from the second group of joints 41b to the pivotal centerline C. , the seat 20 is detachably mounted on the first set of joints 41a or the second set of joints 41b; C, so that the height of the seat 20 assembled on the first group of joints 41a on the vehicle frame 10 is lower than the height of the seat 20 assembled on the second group of joints 41b on the vehicle frame 10, so , by rotating the bearing seat 31, it is convenient to exchange the position between the first group of joints 41a and the second group of joints 41b, so that the height adjustment of the seat 20 on the vehicle frame 10 is more convenient; specifically, the driver 13, front foot 11 and the bearing seat 31 are coaxially pivoted, which is more convenient for the rotating operation of the bearing seat 31; The position exchange between one group of joints 41a and the second group of joints 41b only needs to rotate the bearing seat 31 by 90 degrees. In addition, this angle setting can avoid one of the first group of joints 41a and the second group of joints 41b from The other one of the first set of joints 41 a and the second set of joints 41 b creates an obstacle when it is assembled with the seat 20 . It should be noted that when the seat 20 is assembled with the first group of joints 41a, the second group of joints 41b is in an idle state at this time. Similarly, when the seat 20 is assembled with the second group of joints 41b, this When the first group of joints 41a is in an idle state, therefore, the seat 20 and the bearing seat 31 in the baby stroller 100e of the fifth embodiment are designed to be detachable.

It should be noted that, in the first embodiment, the bearing seat 31 of the seat height adjustment mechanism 30 is set to slide; while in the fifth embodiment, the bearing seat 41 of the seat height adjustment mechanism 40 is pivotally arranged, Therefore, in order to ensure the position of the bearing seat 41 after rotation, the remaining structures of the seat height adjustment mechanism 30 in the first to fourth embodiments except the bearing seat 31 can be transferred over, that is, the unlocking operation member 33 is linked. The locking part 32 is for the purpose of releasing the lock between the bearing seat 41 and the fixing part 34 . And it can be understood that, according to actual needs, the bearing seat 41 of the seat height adjustment mechanism 40 in the fifth embodiment can be pivotally connected to the front foot 11, the rear foot 12 or the rider in the frame 10 around a pivot centerline C. 13 places, so it is not limited to the above examples.

In conjunction with Fig. 21 to Fig. 24, the working principle of the baby stroller 100e of the fifth embodiment of the present invention is described: when the seat 20 shown in Fig. 21 is adjusted to the position shown in Fig. 22, at this time First, the seat 20 is removed from the first group of joints 41a shown in Figure 21; then, the bearing seat 41 is rotated counterclockwise to make the first The assembly joint 41a and the second group joint 41b exchange positions; then, the seat 20 is assembled to the second group joint 41b, and the state is shown in FIG. 22 . When the position of the seat 20 shown in the 22nd figure is to be adjusted to the position shown in the 21st figure, the seat 20 is first removed from the second group of joints 41a shown in the 22nd figure; then, clockwise Rotate the bearing seat 41 to exchange the positions of the first group of joints 41a and the second group of joints 41b; then, assemble the seat 20 to the first group of joints 41a, the state is shown in FIG. 21 .

Please refer to Fig. 25 to Fig. 33, the structures of the frame 10 and the seat 20 of the baby stroller 100f of the sixth embodiment of the present invention and the baby stroller 100a of the first embodiment are the same, and the sixth embodiment The seat height adjustment mechanisms of the baby stroller 100f of the first embodiment and the baby stroller 100a of the first embodiment all include a bearing seat 31, a locking member 32, an unlocking operation member 33 and a fixing member 34, and the bearing seat 31 is slidably arranged on a fixed Part 34, and the fixing part 34 is installed at the driver 13 places. The differences are as follows:

(1) In the sixth embodiment, the release operation part 33 and the lock part 32 are independent of each other, that is, the release operation part 33 is an independent element, and the lock part 32 is also an independent element, so that the release operation part 33 and the lock part 32 are linked together through a linkage structure (such as the transmission member 39b and the traction member 37 described below). However, in the first embodiment, the unlocking operation member 33 and the locking member 32 have an integral structure, so the transmission member 39 b and the traction member 37 are not provided between the unlocking operating member 33 and the locking member 32 .

(2) In the sixth embodiment, the seat height adjustment mechanism 30''' additionally includes a flexible traction piece 37, and the unlocking operation piece 33 links the locking piece 32 through the traction piece 37 to realize the locking of the locking piece 32. Specifically, the first end of the traction member 37 is connected with the release operation member 33 installed on the seat 20, and the second end of the traction member 37 is connected with the locking member 32 installed on the bearing seat 31 More specifically, the seat height adjustment mechanism 30''' further includes a transmission member 39b that is movably arranged on the seat 20, the transmission member 39b is linked with the release operation member 33, and the first end of the traction member 37 is installed on the transmission member 39b, the unlocking operation part 33 passes through the transmission part 39b and the traction part 37 to pull the locking part 32 for the purpose of releasing the lock. Since the interlocking relationship between the transmission member 39b and the release operation member 33 is well known in the art, it will not be described here. For example, the unlocking operation member 33 and the transmission member 39b are respectively slidably arranged on the seat 20, and the sliding operation of both the release operation member 33 and the transmission member 39b The directions are intersected, therefore, through the sliding of the unlocking operation member 33 , the transmission member 39 b is connected to move to pull the traction member 37 , or release the movement to pull the traction member 37 . Since there is no traction member 37 and transmission member 39b between the unlocking operating member 33 and the locking member 32 in the first embodiment, the above-mentioned connection relationship between the releasing operating member 33 and the locking member 32 does not exist.

(3) In the sixth embodiment, since the release operation member 33 is installed on the seat 20 , the seat 20 and the bearing seat 31 cannot be disassembled and assembled at this time. In the first embodiment, the seat 20 and the bearing seat 31 can be made detachable, of course, can also be made non-detachable.

Except for the above differences, others are the same as the first embodiment, so details will not be repeated here. In addition, it should be noted that in the sixth embodiment, the bearing seat 31 in the seat height adjustment mechanism 30'' is slid on the front foot 11 or the rear foot 12 of the frame 10 according to actual needs, specifically the seat height The fixing part 34 in the adjusting mechanism 30 ″ is installed on the front leg 11 or the rear leg 12 of the vehicle frame 10 , so that the bearing seat 31 can be slid on the front leg 11 or the rear leg 12 by sliding on the fixing part 34 .

In conjunction with Figures 25 to 32, the working principle of the baby stroller 100f of the sixth embodiment of the present invention is described: when the height of the seat 20 on the frame 10 needs to be adjusted upward, the user directly pulls the seat 20 upward , so that the force acting on the seat 20 is transmitted to the bearing seat 31, so that the bearing seat 31 has a tendency to slide upward; The mutual pushing action between the inclined structures 351 of the lock part 35 makes the lock part 32 slide and shrink inwardly against the reset elastic part 36, thereby releasing the lock between the lock part 32 and the matching lock part 35 of a segment aligned with it, thus The bearing seat 31 is allowed to be adjusted upwards together with the seat 20 until the locking member 32 is aligned with another segment matching lock portion 35 again; at this time, under the elastic force of the reset elastic member 36, the locking member 32 automatically It is locked with another aligned locking portion 35 to fix the position of the adjusted bearing seat 31 on the driver 13 . When the height position of the seat 20 on the vehicle frame 10 is to be adjusted downward, the user operates the release operation member 33, and the release operation member 33 drives the transmission member 39b and the traction member 37 to pull the lock member 32 to overcome the reset elasticity. Part 36 slides and retracts, so that the locking part 32 is aligned with the other segment matching lock part 35 Release the lock between them, thereby allowing the carrying base 31 to be adjusted downward together with the seat 20 .

Compared with the prior art, since the bearing seats 31, 41 are slid on the vehicle frame 10 along the vertical direction of the vehicle frame 10, the bearing seats 31, 41 can be adjusted by the vertical sliding of the bearing seats 31, 41 relative to the vehicle frame 10. Therefore, the height position of the seat 20 on the vehicle frame 10 can be adjusted flexibly according to the height of the baby through the up and down movement of the carrying seats 31, 41 relative to the vehicle frame 10, so as to achieve the adjustment of the seat on the carrying seats 31, 41. The height position of the chair 20 on the vehicle frame 10 is convenient for the adjustment operation of the operator on the one hand, and improves the versatility on the other hand.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

10: Frame

11: front foot

12: rear foot

13: Driver

20: seat

30: Seat height adjustment mechanism

31: Bearing seat

34:Fixer

35: Duan lock department

100a: baby stroller

Claims (46)

A seat height adjustment mechanism, which is arranged on a frame of a baby stroller, the seat height adjustment mechanism includes: a bearing seat, used for assembly with a seat, and the bearing seat is along the up and down direction of the vehicle frame Slidingly arranged on the vehicle frame, through the bearing base sliding up and down relative to the vehicle frame to adjust a height position of the seat on the bearing base on the vehicle frame; a locking member; an unlocking operation member, It is interlocked with the locking piece; and a fixing piece, which is installed on the vehicle frame, the bearing base is slidably arranged on the fixing piece, the locking piece is installed on one of the fixing piece and the bearing base and has at least one Locking position and an unlocking position, the other one of the fixing part and the bearing seat is provided with at least two stages of matching parts spaced apart from each other along the sliding direction of the bearing seat, and the locking part is selectively connected with any When the lock part of the section is locked, it is in the locked position, and the unlocking operation part links the locking part to disengage from any locking part of the section, so that the locking part is in the unlocking position, and the locking part And at least one of the segment locking parts has an inclined structure that is inclined relative to the sliding direction of the bearing seat, during the upward sliding process of the bearing seat, the locking member is switched from the locked position through the inclined structure to the unlocked position. A seat height adjustment mechanism, which is arranged on a frame of a baby stroller, the seat height adjustment mechanism includes: a bearing seat, used for assembly with a seat, and the bearing seat is along the up and down direction of the vehicle frame Slidingly installed on the vehicle frame, the seat on the bearing base slides up and down relative to the vehicle frame to adjust a height position of the seat on the vehicle frame through the bearing base; at least two locking parts, The slip directions are spaced apart from each other; A lock release operating part, which simultaneously moves together with the at least two locking parts; and a fixing part, which is installed on the vehicle frame, the bearing seat is slidably arranged on the fixing part, and the locking part is installed on the fixing part and the One of the bearing seats has at least one locked position and one unlocked position, and the other one of the fixing member and the bearing seat is provided with a segment locking portion, and any one of the locking members is selectively connected to the segment When the locking part is locked, it is in the locked position, and the unlocking operation part is linked with the at least two locking parts to perform the unlocking movement together, and any one of the locking parts is disengaged from locking with the locking part of the section to be in the unlocking position At least one of the locking part and the segment matching part has an inclined structure that is inclined relative to the sliding direction of the bearing seat. During the upward sliding process of the bearing seat, the locking part is moved from the The locked position switches to the unlocked position. The seat height adjustment mechanism according to claim 1 or 2, further comprising: a return elastic member, which is arranged on the locking member and the bearing seat with the locking member or the fixing member, and the return elastic member is constant There is a tendency to drive the locking member to switch from the unlocked position to the locked position. The seat height adjustment mechanism as described in claim 1 or 2, wherein the inclined structure of the locking piece installed on the bearing seat is located on the upper side of the locking piece, and correspondingly, the section opened by the fixing piece is matched with The inclined structure of the lock part is located on the upper side of the locking part of the section; or, the inclined structure of the locking part installed on the fixing part is located on the lower side of the locking part, correspondingly, the section opened by the bearing seat The inclined structure of the matching locking part is located on the lower side of the segment matching locking part. The seat height adjustment mechanism according to claim 1 or 2, wherein the locking member is arranged to slide, and the sliding direction of the locking member intersects with the sliding direction of the carrying seat. The seat height adjustment mechanism according to Claim 5, wherein the release operation part and the locking part are in an integrated structure. The seat height adjustment mechanism as claimed in claim 5, wherein the release operation part and the locking part are independent from each other. The seat height adjustment mechanism according to claim 7 further includes a flexible traction member, and the unlocking operation member is linked with the locking member through the traction member. The seat height adjustment mechanism according to claim 8, wherein, the first end of the traction member is connected to the release operation member installed on the vehicle frame, and the second end of the traction member is connected to the fixing member The lock on the connection. The seat height adjustment mechanism as described in Claim 9 further includes: a turntable, which is pivotally connected to the vehicle frame and has a first mounting portion and a second mounting portion distributed on both sides of the center line of the turntable part, the release operation part is connected with the first installation part, and the first end of the pulling part is connected with the second installation part. The seat height adjustment mechanism as described in claim 10 further includes: a push-pull rod, which is slid on the fixing part or the carrying seat along the sliding direction of the carrying seat, and the second end of the traction part is installed On the push-pull rod, the push-pull rod is linked with the locking piece. The seat height adjustment mechanism as described in Claim 8, wherein, the first end of the traction member is connected with the release operation member installed on the seat, and the second end of the traction member is connected with the release operation member installed on the seat. Locking piece connection on the carrier. The seat height adjustment mechanism as described in Claim 12 further includes: a transmission part, which is movably arranged on the seat, the transmission part is linked with the release operation part, and the first end of the traction part is installed on on the transmission. The seat height adjustment mechanism according to claim 13, wherein the release operation part and the transmission part are respectively slid on the seat, and the sliding directions of the release operation part and the transmission part intersect . The seat height adjustment mechanism according to claim 1 or 2, wherein the locking member is pivotally arranged, and the unlocking operation member and the locking member are in an integrated structure. The seat height adjustment mechanism as described in claim 1 or 2, wherein the locking member and the unlocking operating member are pivotally mounted on the bearing base or the fixing member respectively, and through the pivot of the releasing operating member Swing and link the locking piece to do the unlocking motion. The seat height adjustment mechanism as claimed in claim 1 or 2, wherein the position matching locking portion is a slot structure. The seat height adjustment mechanism as claimed in claim 1 or 2, wherein, the bearing base is pivotally connected to the vehicle frame around a pivot center line, and the bearing base has at least one of the bearing bases spaced apart from each other along the rotation direction of the bearing base. A first set of joints and a second set of joints, the distance from the first set of joints to the pivot centerline is different from the distance from the second set of joints to the pivot centerline, the seat is detachably mounted on the pivot centerline The first set of joints or the second set of joints. The seat height adjustment mechanism according to claim 18, wherein the central angle between the first set of joints and the second set of joints is 90 degrees. A baby stroller, which includes: a seat; a frame, which includes a front foot, a rear foot and a driver, and the front foot, the rear foot and the driver can be extended and retracted; and a seat height adjustment The mechanism includes: a bearing seat, which is slid on the vehicle frame along the vertical direction of the vehicle frame, the seat is assembled on the bearing seat, and adjusted by sliding up and down of the bearing seat relative to the vehicle frame A height position of the seat on the vehicle frame on the bearing seat; a locking piece; a release operation piece, which is linked with the locking piece; and a fixing piece, which is installed on the vehicle frame, and the bearing The seat is slidably arranged on the fixing part, the locking part is installed on one of the fixing part and the bearing seat and has at least one locking position and one unlocking position, and the other of the fixing part and the bearing seat has at least one There are two stages of locking parts spaced apart from each other along the sliding direction of the bearing seat, the locking part is in the locked position when selectively locked with any of the stage matching parts, and the unlocking operating part is linked to the locking The locking part disengages from any one of the segment matching locking parts, so that the locking part is in the unlocking position, and at least one of the locking part and the segment matching locking part has a direction inclined relative to the sliding direction of the bearing seat. The inclined structure is used to switch the lock member from the locking position to the unlocking position during the upward sliding process of the bearing seat. A baby stroller, which includes: a seat; a frame, which includes a front foot, a rear foot and a driver, and the front foot, the rear foot and the driver can be extended and retracted; and a seat height adjustment The mechanism includes: a bearing seat, which is slid on the vehicle frame along the vertical direction of the vehicle frame, the seat is assembled on the bearing seat, and adjusted by sliding up and down of the bearing seat relative to the vehicle frame A height position of the seat on the carrier seat on the vehicle frame; at least two locking parts, which are spaced apart from each other along the sliding direction of the carrier seat; and a fixing part, which is installed on the vehicle frame, the bearing seat is slidably arranged on the fixing part, and the locking part is installed on the fixing part and one of the bearing seat has at least one locking position and a In the unlocking position, the other one of the fixing part and the bearing seat is provided with a section matching part. The lock operating part is linked with the at least two locking parts to perform the unlocking movement together. When any one of the locking parts is disengaged from locking with the segment matching part and is in the unlocking position, the locking part and at least one of the segment matching parts An inclined structure is inclined relative to the sliding direction of the bearing seat. During the upward sliding process of the bearing seat, the locking member is switched from the locking position to the unlocking position through the inclined structure. The baby stroller as claimed in claim 20 or 21, wherein the seat height adjustment mechanism further includes: a return elastic member, which is arranged on the locking member and the carrying seat or the fixing seat with the locking member On the member, the reset elastic member always has a tendency to drive the locking member to switch from the unlocked position to the locked position. The baby stroller as claimed in claim 20 or 21, wherein, the inclined structure of the locking part installed on the bearing seat is located on the upper side of the locking part, and correspondingly, the position matching part of the fixing part is The inclined structure is located on the upper side of the section matching lock part; or, the inclined structure of the locking part installed on the fixing part is located on the lower side of the locking part, correspondingly, the section matching locking part opened by the bearing seat The inclined structure is located on the lower side of the segment locking part. The baby stroller as claimed in claim 20 or 21, wherein the locking member is arranged to slide, and the sliding direction of the locking member is intersected with the sliding direction of the bearing seat. The baby stroller as claimed in claim 24, wherein the release operation part and the locking part are of an integral structure, and the seat and the bearing seat are detachably assembled. The stroller as described in claim 24, wherein the seat height adjustment mechanism further includes a flexible traction member, the release operation member is independent from the lock member, and the release operation member passes through The traction piece is linked with the locking piece. The baby stroller as claimed in claim 26, wherein, the first end of the traction member is connected to the release operation member installed on the driver, and the second end of the traction member is connected to the release operation member installed on the fixing member. Locking piece connection. The stroller as described in claim 27, wherein the seat height adjustment mechanism further includes: A turntable, which is pivotally connected to the driver, the turntable has a first installation part and a second installation part distributed on both sides of the center line of the turntable, the release operation part is connected with the first installation part, the The first end of the traction member is connected to the second installation part, and the seat is detachably assembled with the bearing base. The baby stroller as described in claim 28, wherein the seat height adjustment mechanism further includes: a push-pull rod, which is slid on the fixing member or the bearing seat along the sliding direction of the bearing seat, and the traction member The second end is installed on the push-pull rod, and the push-pull rod is linked with the locking piece. The baby stroller as described in claim 26, wherein the seat height adjustment mechanism further includes: a transmission part, which is movably arranged on the seat, the transmission part is linked with the release operation part, and the traction part The first end is installed on the transmission part, and the second end of the traction part is connected with the locking part installed on the bearing seat. The baby stroller as claimed in claim 30, wherein the unlocking operation part and the transmission part are respectively slid on the seat, and the sliding directions of the release operation part and the transmission part intersect. The baby stroller as claimed in claim 20 or 21, wherein the locking member is pivotally arranged, and the unlocking operation member and the locking member are in an integrated structure. The baby stroller as claimed in claim 20 or 21, wherein the locking part and the unlocking operating part are respectively pivotably mounted on the bearing seat or the fixing part, and the The locking piece is linked to perform the unlocking movement. The baby stroller as claimed in claim 20 or 21, wherein, the bearing base is pivotally connected to the vehicle frame around a pivot center line, and the bearing bases have at least one first A set of joints and a second set of joints, the distance from the first set of joints to the pivot center line is different from the distance from the second set of joints to the pivot center line, the seat is detachably mounted on the first set of joints group connector or second group connector. The baby stroller as claimed in claim 20 or 21, wherein the bearing seat is slidable on the driver, the front foot or the rear foot along the vertical direction of the frame. A seat height adjustment mechanism, which is arranged on a frame of a baby stroller, the seat height adjustment mechanism includes: a bearing seat, used for assembly with a seat, and the bearing seat is along the up and down direction of the vehicle frame Slidingly arranged on the vehicle frame, the height position of the seat on the bearing base on the vehicle frame is adjusted by sliding up and down relative to the vehicle frame through the bearing base, and the bearing base pivots around a pivoting center line Connected to the vehicle frame, the bearing base has at least a first set of joints and a second set of joints spaced apart from each other along the rotation direction of the bearing base, and the distance from the first set of joints to the pivot centerline is the same as that of the second set of joints. The distances from the two sets of joints to the pivoting central line are different, and the seat is detachably installed on the first set of joints or the second set of joints. The seat height adjustment mechanism as described in claim 36 further includes: a locking member; a release operation member, which is linked with the locking member; and a fixing member, which is installed on the vehicle frame, and the bearing seat Slidingly arranged on the fixing part, the locking part is installed on one of the fixing part and the bearing seat and has at least one locking position and one release lock position, the other one of the fixing part and the bearing seat is provided with at least two segment locking parts spaced apart from each other along the sliding direction of the bearing seat, and the locking part is selectively locked with any of the segment locking parts. When it is in the locked position, the unlocking operating part is linked with the locking part to disengage from any one of the segment matching parts, so that the locking part is in the unlocking position. The seat height adjustment mechanism according to claim 36, further comprising: at least two locking parts, which are spaced apart from each other along the sliding direction of the bearing seat; a release operation part, which is simultaneously with the at least two locking parts Linkage; and a fixing part, which is installed on the vehicle frame, the bearing seat is slidably arranged on the fixing part, and the locking part is installed on one of the fixing part and the bearing seat and has at least one locking position and a In the unlocking position, the other one of the fixing part and the bearing seat is provided with a section matching part. The operating part is linked with the at least two locking parts to perform the unlocking movement, and any one of the locking parts is disengaged from the locking part of the section and is in the unlocking position. The seat height adjustment mechanism as described in Claim 37 or 38 further includes: a return elastic member, which is arranged on the locking member and the bearing seat with the locking member or the fixing member, and the return elastic member is constant There is a tendency to drive the locking member to switch from the unlocked position to the locked position. The seat height adjustment mechanism according to claim 36, wherein the central angle between the first set of joints and the second set of joints is 90 degrees. A stroller comprising: A seat; a vehicle frame, which includes a front foot, a rear foot, and a driver, and the front foot, the rear foot, and the driver can be extended and retracted; and a seat height adjustment mechanism, which includes: a bearing seat , which is slid on the vehicle frame along the up and down direction of the vehicle frame, the seat is assembled on the bearing base, and the seat on the bearing base is adjusted by sliding up and down relative to the vehicle frame through the bearing base At a height position on the vehicle frame, the bearing base is pivotally connected to the vehicle frame around a pivot center line, and the bearing bases have a first set of joints and a first set of joints spaced apart from each other at least along the rotation direction of the bearing base. Two sets of joints, the distance from the first set of joints to the pivot center line is different from the distance from the second set of joints to the pivot center line, the seat is detachably mounted on the first set of joints or the second set of joints group joints. The baby stroller as claimed in claim 41, wherein the bearing seat is slidable on the driver, the front foot or the rear foot along the vertical direction of the frame. The stroller as described in claim 41, wherein the seat height adjustment mechanism further includes: a locking member; an unlocking operation member, which is linked with the locking member; and a fixing member, which is installed on the frame The bearing seat is slidably arranged on the fixing part, the locking part is installed on one of the fixing part and the bearing seat and has at least one locking position and one unlocking position, and the fixing part and the bearing seat The other is provided with at least two stages of locking parts spaced apart from each other along the sliding direction of the bearing seat. When the locking member is selectively locked with any of the stages of locking parts, it is in the locked position. The unlocking operation The locking part is linked with the locking part to disengage and lock with any of the segment matching parts, so that the locking part is in the unlocking position. The baby stroller as described in claim 41, wherein the seat height adjustment mechanism further comprises: at least two locking parts, which are spaced apart from each other along the sliding direction of the bearing seat; At least two locking pieces are interlocked together; and a fixing piece, which is installed on the vehicle frame, and the bearing base is slidably arranged on the fixing piece, and one of the locking piece is installed on the fixing piece and the bearing base has at least one lock An engaged position and an unlocked position, the other one of the fixing part and the bearing seat is provided with a position matching part, and any one of the locking parts is in the locking position when selectively locked with the segment matching part. Position, the unlocking operating part links the at least two locking parts to perform the unlocking movement together, and any one of the locking parts is disengaged from locking with the section matching lock part to be in the unlocking position. The baby stroller as described in claim 43 or 44, wherein the seat height adjustment mechanism further includes: a return elastic member, which is arranged on the locking member and the bearing seat with the locking member or the fixing member, The restoring elastic member always has a tendency to drive the locking member to switch from the unlocking position to the locking position. The baby stroller according to claim 41, wherein the central angle between the first set of joints and the second set of joints is 90 degrees.

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