CN114435453A - Synchronous reversing mechanism for push rod and seat pocket of baby carriage frame - Google Patents

Abstract

The invention discloses a synchronous reversing mechanism between a push rod and a seat pocket of a stroller frame, comprising a frame body, a fixed seat, a rotating seat, a seat pocket, a push rod and an unlocking operation device, and the fixed seat is fixedly mounted on the frame body , the rotating seat is axially stopped and can be rotated around the vertical axis in the circumferential direction, and is installed on the fixed seat, the seat pocket can be fixedly installed on the rotating seat, and the lower end of the push rod can be rotated around the horizontal axis extending in the horizontal direction. On the seat, the rotating seat is provided with at least two first locking fasteners arranged symmetrically along its axis, the fixed seat is provided with at least one second locking fastener, and each first locking fastener on the rotating seat rotates with the rotating seat They can be respectively fastened and fixed with the second locking fasteners on the fixed seat, and the unlocking operation device can drive the first locking fasteners and the second locking fasteners to release and separate. It has simple structure, few parts, good strength of parts, easy production, and the overall frame is relatively firm.

Description

The push rod of the stroller frame and the seat pocket synchronous reversing mechanism

technical field

The invention relates to a baby carriage, in particular to a synchronous reversing mechanism for a push rod of a baby carriage frame and a seat pocket.

Background technique

The reversing function of the stroller is one of the important functions of the stroller. At present, it is commonly divided into push handle reversing and seat pocket reversing.

Among them, the seat pocket is currently disassembled from the frame of the stroller, reversed the direction, and then installed on the frame. Not only is it inconvenient to operate. For a mother with a baby alone, it is basically impossible.

It is more convenient to change the direction of the push handle than the seat pocket, and it is not necessary to disassemble the seat pocket, just push the push handle to rotate the push handle at a certain angle around the horizontal axis, so as to realize the push of the stroller.

However, after the push handle is reversed, parents need to go around the back of the cart to push the cart. At this time, the direction of the cart needs to be turned around, which is inconvenient to use, especially when passing through narrow spaces such as passages. It is very difficult, and this structure changes the rotation direction of the front and rear wheels after the seat pocket is turned, and requires both the front and rear wheels to be swivel wheels. Therefore, the current push handle reversing also has drawbacks in use.

At present, there is a baby stroller that uses a rotating seat to realize the steering of the seat. However, the push rod of this kind of baby stroller cannot rotate and steer synchronously with the seat, and the center rotation mechanism of the seat is complicated, which easily causes the seat to shake during the reversing process. , is not stable enough. In order to improve the strength of the steering mechanism, it is currently made of metal parts, which leads to high cost of the stroller frame, difficulty in manufacturing, and complicated operation of the seat pocket.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned defects, the present invention provides a synchronous reversing mechanism between the push rod of the stroller frame and the seat pocket. The lever is synchronously reversing, and the reversing is convenient and smooth. There is no need to disassemble the seat pocket, and there is no need for parents to detour. It can be used in various environments.

The technical solution adopted by the present invention in order to solve the technical problem is as follows: a synchronous reversing mechanism between a push rod and a seat pocket of a stroller frame, comprising a frame body, a fixed seat, a rotating seat, a seat pocket, a push rod and an unlocking operation device , the fixed seat is fixedly installed on the main body of the frame, the rotating seat is axially stopped and the circumferential direction can rotate around the vertical axis and is installed on the fixed seat, the seat pocket can be fixedly installed on the rotating seat, and the lower end of the push rod can It is mounted on a rotating base to rotate around a horizontal rotating shaft extending in the horizontal direction. Each of the first locking fasteners on the rotating seat can be respectively connected with the second locking fasteners on the fixed seat in a fastened and fixed connection with the rotation of the rotating seat, and the unlocking operation device can drive the first locking fastener and the second locking fastener to release and separate. .

As a further improvement of the present invention, the first locking fastener includes at least two eccentric sockets and locking pins symmetrically arranged along the axis of the rotating seat, the second locking fastener is a positioning slot provided on the fixing seat, and the Each eccentric socket piece on the rotating seat can be directly connected to the positioning slot on the fixed seat with the rotation of the rotating seat, and the locking pin can be slidably installed on the side wall of the lower end of the push rod. The rotation can be inserted into the eccentric sockets and positioning slots that are connected to each other to fix the connection between the rotating base and the fixed base, and the unlocking operation device can drive the locking pins to slide into or out of the eccentric sockets and positioning sockets.

As a further improvement of the present invention, the unlocking operation device includes a handle, a pull rope and a latch reset elastic member, the handle can be moved within a set range and is installed on the outer side wall of the push rod, and the inner side of the push rod is formed with a pull rope Through the hollow channel, one end of the pull rope is connected with the handle, and the other end of the pull rope is connected with the locking bolt. The movement of the handle can drive the pull rope to slide in the hollow channel and then pull the locking bolt to slide along the eccentric socket. Provides a resilient retention force towards the eccentric receptacle and the locating slot for the locking pin.

As a further improvement of the present invention, a radially extending plug guide sleeve is provided on the outer peripheral wall of the lower end of the push rod, the positioning plug can be inserted into the plug guide sleeve with a sliding set distance, and the plug reset elastic member It is a spring inserted in the plug guide sleeve, one end of the spring is fixedly connected with the inner side wall of the plug guide sleeve, and the other end of the spring is tightly abutted against the positioning plug.

As a further improvement of the present invention, a slideway is provided in the rotating seat, and both ends of the slideway in the extending direction are respectively in direct communication with the openings of different eccentric sockets, and the locking pin can slide in the slideway and enter different inside the eccentric jack.

As a further improvement of the present invention, the slideway is an arc slideway, and a horizontal contact surface matching the end face of the locking pin is formed in the middle of the slideway, and the end of the locking pin can be in close contact when the locking pin is in a vertical state. horizontal contact surface.

As a further improvement of the present invention, a bearing is provided between the fixed seat and the rotating seat.

As a further improvement of the present invention, the rotating seat includes a rotating lower cover and a rotating upper cover, the rotating upper cover can be detachably mounted on the upper end surface of the rotating lower cover, the eccentric socket is provided on the rotating lower cover, and the rotating lower cover is The cover is also provided with a lower positioning groove of the push rod that communicates with each eccentric jack, and the upper rotating cover is provided with an upper positioning groove of the push rod, and the lower end of the push rod can be rotatably inserted in the lower positioning groove of the push rod and on the push rod in the cylindrical space formed by the positioning grooves.

As a further improvement of the present invention, the lower end of the push rod forms a horizontal rotating shaft with a middle diameter greater than the diameters of both ends, and a cylindrical space with a middle diameter greater than the diameters of both ends is formed in the rotating seat, and the horizontal rotating shaft at the lower end of the push rod can rotate to accommodate In the cylindrical space, the stepped surfaces on the two axial sides of the lower end of the push rod stop on the stepped surfaces on the two axial sides of the cylindrical space.

As a further improvement of the present invention, the seat pocket can be fixedly mounted on the rotating base as follows: a plug-in slideway is provided on the upper end surface of the rotary base, and a bottom surface of the plug-in slideway is provided with a height direction capable The elastic buckle is elastically retractable, the seat pocket is provided with a sliding rail, the sliding rail can be inserted into the plugging slideway, and the upper and lower side plates and the left and right sidewalls of the sliding rail are respectively stopped on the plugging slideway On the inner side wall, the bottom surface of the seat pocket slide rail is provided with a snap groove, and the elastic snap buckle on the bottom surface of the insertion slide rail can be fastened and connected with the snap groove on the bottom surface of the seat pocket slide rail for positioning.

The beneficial effects of the present invention are as follows: the present invention realizes the reversal of the seat pocket through the rotation of the rotating seat on the fixed seat, and realizes the reversal of the push rod through the rotation of the push rod on the rotating seat around the horizontal axis. The buckling connection of the buckle and the second locking piece realizes the fixed positioning of the rotating seat and the fixed seat, and ensures that the seat pocket can maintain a stable positioning state when changing forward and backward. The invention realizes the synchronization between the seat pocket and the push rod on the baby carriage Reversing, which avoids the disassembly of the seat pocket during the reversing process of the seat pocket, and also avoids the need for parents to detour to the opposite side of the stroller to push the push rod during the reversing process of the seat pocket. The whole reversing process is convenient, simple and smooth. It can be easily completed, can adapt to various environments, and is not affected by the size of the space, and the invention has simple structure, few parts, good strength of parts, easy production, and relatively firm overall frame.

Description of drawings

FIG. 1 is a perspective view of the frame of the present invention in a first state;

Fig. 2 is the front view of the frame of the present invention in the first state;

Fig. 3 is the front view of the disassembled state of the fixed seat and the rotating seat of the present invention;

4 is an exploded view of the installation principle of the rotating seat and the push rod of the present invention;

FIG. 5 is a schematic diagram of the insertion principle of the fixing base and the locking bolt of the present invention;

6 is a schematic diagram of the sliding principle of the locking bolt of the present invention;

Fig. 7 is the exploded state diagram of the fixed seat, the rotating seat and the push rod of the present invention;

Figure 8 is a perspective view of the locking bolt of the present invention in an open state;

FIG. 9 is a front view of the locking bolt of the present invention in an open state;

Figure 10 is a front view of the seat pocket of the present invention in a reverse locked state;

Figure 11 is a front view of the seat pocket of the present invention in a reverse unlocked state;

12 is a perspective view of the seat pocket of the present invention in a reverse unlocked state;

13 is a front view of the seat pocket of the present invention rotated to a positive unlocking state;

Fig. 14 is a front view of the seat pocket of the present invention in a positive locking state.

Detailed ways

Embodiment: A synchronous reversing mechanism of push rod and seat pocket 4 of a stroller frame, comprising a frame body 1, a fixed seat 2, a rotating seat 3, a seat pocket 4, a push rod 5 and an unlocking operation device, the fixed seat 2 is fixedly installed on the frame body 1, the rotating seat 3 is axially stopped and can be rotated around the vertical axis and is installed on the fixed seat 2, the seat pocket 4 can be fixedly installed on the rotating seat 3, and the push rod 5 The lower end can be rotated around the horizontal axis 19 extending in the horizontal direction and is installed on the rotating base 3. The rotating base 3 is provided with at least two first locking fasteners symmetrically arranged along its axis, and the fixed base 2 is provided with at least one second. Locking fasteners, each of the first locking fasteners on the rotating base 3 can be respectively connected with the second locking fasteners on the fixed base 2 with the rotation of the rotating base 3, and the unlocking operation device can drive the first locking fasteners Released and separated from the second locking fastener.

When the seat pocket 4 needs to be turned, it is only necessary to open the first locking fastener and the second locking fastener, then turn the rotating seat 3 to make it rotate 180 degrees around the vertical axis, and rotate the push rod 5 to rotate around the horizontal axis 19 Set the angle, at this time, the seat pocket 4 turns 180 degrees, and at the same time, the push rod 5 is still tilted towards the parent. Lock the first locking fastener and the second locking fastener to push the stroller and continue to walk forward. 4. There is no need to disassemble the seat pocket 4 during the turning process, which is convenient for parents to turn the seat pocket 4. The push rod 5 rotates together with the seat pocket 4 first, and then reverses and resets to the side facing the parents, so that the seat pocket 4 will not be affected by the push rod when turning. 5 interference, and at the same time, parents do not need to go around the opposite side of the cart to push the push rod 5, which is convenient to use and is not limited by the size of the space.

The first locking fastener includes at least two eccentric sockets 6 and locking pins 7 arranged symmetrically along the axis of the rotating seat 3 , and the second locking fastener is a positioning slot 8 provided on the fixed seat 2 . Each eccentric socket 6 on the 3 can be connected with the positioning slot 8 on the fixed base 2 with the rotation of the rotating base 3, and the locking pin 7 can be slidably installed on the side wall of the lower end of the push rod 5. The locking pin 7 can be inserted into the eccentric socket 6 and the positioning slot 8 which are connected to each other with the rotation of the push rod 5 to fix the connection between the rotating base 3 and the fixed base 2, and the unlocking operation device can drive the locking pin 7 to slide so that it can be inserted into or withdrawn from each other. Eccentric socket 6 and positioning slot 8.

By inserting the locking pin 7 into the eccentric socket 6 and the positioning slot 8, the fixed positioning of the rotating base 3 and the fixed base 2 is realized, and the eccentric socket 6 is symmetrically arranged on the rotating base 3, so that the rotating base 3 has eccentric sockets before and after turning. The hole 6 is in direct communication with the positioning slot 8, so that the rotating seat 3 and the fixed seat 2 can be fixed and positioned when the seat pocket 4 faces in different directions, and the unlocking operation device is operated to make the locking pin 7 exit the eccentric socket 6 and the positioning slot 8. Then, the rotating seat 3 can be rotated to turn the seat pocket 4. After the seat pocket 4 and the push rod 5 are turned, the operating device is unlocked to reset the locking pin 7 and reinsert it into the eccentric socket 6 and the positioning slot 8. The structure is simple. , easy to operate, in addition, the first locking fastener and the second locking fastener can also be a locking screw and a threaded hole screw structure, or a groove and an elastic hook structure, etc., as long as the rotating seat 3 and the fixed seat 2 can be realized. It is sufficient to fix the positioning. These are equivalent replacement structures that can easily be thought of by those skilled in the art according to this patent, and belong to the protection scope of this patent.

The unlocking operation device includes a handle 11, a pull rope 12 and a latch reset elastic member 13. The handle 11 can be moved within a set range and is installed on the outer side wall of the push rod 5. The inner side of the push rod 5 is formed with a pull rope 12. Through the hollow channel, one end of the pull rope 12 is connected to the handle 11, and the other end of the pull rope 12 is connected to the locking plug 7. The movement of the handle 11 can drive the pull rope 12 to slide in the hollow channel and then pull the locking plug 7 to slide along the eccentric socket 6. , the latch reset elastic member 13 can provide the locking latch 7 with an elastic retaining force toward the eccentric socket 6 and the positioning slot 8 .

By operating the handle 11 to move on the push rod 5, the pull rope 12 is then pulled, so that the pull rope 12 pulls the locking pin 7 to move to realize its exit from the eccentric socket 6 and the positioning slot 8. At this time, the rotating seat 3 and the push rod 5 can be rotated The steering of the seat pocket 4 and the push rod 5 is realized. When the steering of the seat pocket 4 and the push rod 5 is completed, the locking pin 7 automatically faces the eccentric socket 6 and the positioning slot 8 on the other side, and the locking pin 7 loses the pull rope 12. After the pulling force, under the action of the elastic force of the pin reset elastic member 13, it is automatically inserted into the eccentric socket 6 and the positioning socket 8 for fixed positioning. At this time, the rotating base 3, the fixed base 2 and the push rod 5 are fixedly connected to form an integrated structure. They cannot be rotated relative to each other, and the handle 11 can slide on the side wall of the push rod 5, such as sliding up and down or left and right to pull the pull rope 12. A chute is provided on the upper part to guide and limit the sliding of the handle 11. In addition, the handle 11 can also rotate and wrap the pull rope 12 on the push rod 5 to realize the traction of the pull rope 12. The technical solutions that are easy to think of belong to the scope of protection of this patent.

A radially extending plug guide sleeve 14 is arranged on the outer peripheral wall of the lower end of the push rod 5. The positioning plug can be slidably inserted into the plug guide sleeve 14 for a set distance. The plug reset elastic member 13 is inserted into the plug guide sleeve 14. The spring in the plug guide sleeve 14, one end of the spring is fixedly connected with the inner side wall of the plug guide sleeve 14, and the other end of the spring is pressed against the positioning plug. The bolt guide sleeve 14 can guide and locate the sliding of the bolt to ensure that the locking bolt 7 slides radially along the lower end of the push rod 5 to lock the rotating seat 3 and the fixed seat 2 smoothly. In addition to locking the rotating base 3 and the fixed base 2 , the rotating base 3 and the fixed base 2 can also be locked and positioned by sliding axially along the push rod 5 or sliding in other directions.

The swivel base 3 is provided with a slideway 9. The two ends of the slideway 9 in the extending direction are respectively in direct communication with the openings of different eccentric sockets 6. The locking pin 7 can slide in the slideway 9 and enter into different eccentric sockets. Inside the eccentric jack 6.

A slideway 9 is provided in the rotating seat 3, so that when the push rod 5 rotates, the locking pin 7 is transposed and inserted between different eccentric sockets 6, and after the locking pin 7 exits the eccentric socket 6, it follows the push rod 5. Rotate the locking pin 7 into the slideway 9, and the locking pin 7 is completely separated from the eccentric socket 6. At this time, the hand does not need to continue to operate the handle 11, and the rotating seat 3 and the fixed seat 2 can be kept in the unlocked state, and the hands of the rotating seat 3 can be released. , after the seat pocket 4 is rotated in place, continue to rotate the push rod 5 to make the locking pin 7 enter the other eccentric socket 6. In order to make the eccentric socket 6 and the positioning socket 8 just face to connect after the seat pocket 4 is turned, you can An angle limiting structure is arranged on the fixed seat 2, so that the eccentric insertion hole 6 and the positioning slot 8 are just opposite to each other after the seat pocket 4 is turned. The slider can slide in the arc-shaped groove. When the rotating base 3 just rotates 180 degrees, the slider is just at the end of the arc-shaped groove of the slideway 9. It is also possible to set a stepped structure with different diameters on both sides inside the fixed base 2. A radially convex slider is arranged on the rotating seat 3, and a convex point or a pit can also be provided on the fixed seat 2, and a concave or convex point is arranged on the rotating seat 3. When the rotating seat 3 is rotated in place, it will be convex The point just enters the pit, giving a rotation resistance. At the same time, a limit structure for the rotation angle of the push rod 5 can be set on the rotating seat 3, so that the locking pin 7 is just in contact with the eccentric socket 6 and the positioning plug after the push rod 5 is rotated. The slot 8 is facing the insertion, for example, a fan-shaped opening is provided on the rotary base 3, and a radial protrusion is provided on the push rod 5, and the radial protrusion rotates in the fan-shaped opening to limit the rotation angle of the push rod 5, or Steps are symmetrically arranged on the rotating seat 3 to block the push rod 5. The above are all technical solutions that can be easily thought of by those skilled in the art according to this patent, and belong to the protection scope of this patent.

The slideway 9 is an arc slideway, and a horizontal contact surface 10 is formed in the middle of the slideway 9 to match the end face of the locking pin 7, and the end of the locking pin 7 can be close to the level when the locking pin 7 is in a vertical state. Contact surface 10. The arc-shaped slideway 9 is convenient for the locking pin 7 to slide smoothly, and a horizontal contact surface 10 is formed at the middle position of the arc-shaped slideway 9. After unlocking the locking pin 7, turn the push rod 5 to a vertical state, and the end of the locking pin 7 is just right. It is in contact with the horizontal contact surface 10 of the arc-shaped slideway 9. At this time, the locking pin 7 and the horizontal contact surface 10 can maintain a stable vertical contact state to ensure that the push rod 5 is always in a vertical state during the pocketing process of the rotating seat 3, that is, the locking pin 7. Always keep the position of the eccentric jack 6 in a stable position, so as to avoid affecting the normal reversing of the seat pocket 4. After the reversing is completed, the push rod 5 in the vertical state can be pulled back. The push rod 5 of this structure is seated During the reversing process of the pocket 4, it is always in a vertical state, which is convenient for the seat pocket 4 to be pulled back to the parent after the reversing is completed, and it is convenient for the push rod 5 to rotate.

A bearing is provided between the fixed seat 2 and the rotating seat 3 . It is used to ensure that the rotating base 3 rotates smoothly on the fixed base 2 .

The rotating base 3 includes a rotating lower cover 15 and a rotating upper cover 16. The rotating upper cover 16 is detachably mounted on the upper end surface of the rotating lower cover 15, and the eccentric socket 6 is provided on the rotating lower cover 15. The cover 15 is also provided with a lower push rod positioning groove 17 that communicates with each eccentric socket 6, and the rotating upper cover 16 is provided with a push rod upper positioning groove 18. The lower end of the push rod 5 is rotatably inserted under the push rod. The positioning groove 17 and the positioning groove 18 on the push rod form a cylindrical space together. The rotating base 3 is divided into a rotating upper cover 16 and a rotating lower cover 15 to facilitate the installation and positioning of the push rod 5 .

The lower end of the push rod 5 forms a horizontal rotating shaft 19 with a middle diameter greater than the diameters of both ends, and a cylindrical space with a middle diameter greater than the diameters of both ends is formed in the rotating seat 3, and the horizontal rotating shaft 19 at the lower end of the push rod 5 can be rotatably accommodated in the In the cylindrical space, the stepped surfaces on both axial sides of the lower end of the push rod 5 stop on the stepped surfaces on both axial sides of the cylindrical space. This structure can limit the axial position of the push rod 5 in the rotating seat 3 , so as to prevent the locking pin 7 and the eccentric socket 6 from being misaligned due to the axial sliding of the push rod 5 .

The seat pocket 4 can be fixedly installed on the rotating base 3 as follows: the upper end surface of the rotating base 3 is provided with a plug-in slideway 20 , and the bottom surface of the plug-in slideway 20 is provided with a height direction capable of elastic expansion and contraction. The elastic buckle 21 is provided on the seat pocket 4. The slide rail can be inserted into the insertion slideway 20, and the upper and lower side plates and the left and right side walls of the slide rail are respectively stopped in the plug-in connection. On the inner side wall of the slideway 20 , the bottom surface of the slide rail of the seat pocket 4 is provided with a slot, and the elastic buckle 21 on the bottom surface of the insertion slideway 20 can be connected and positioned with the slot on the bottom surface of the slide rail of the seat pocket 4 . This structure enables the seat pocket 4 to be fixedly connected with the rotating base 3, and also can be disassembled and replaced with different seat pockets 4 or baskets, which is convenient to use and has good versatility.

Claims (10)

1. The utility model provides a baby carriage frame push rod and seat pocket synchronous reversing mechanism which characterized in that: including frame main part (1), fixing base (2), roating seat (3), seat pocket (4), push rod (5) and unblock operating means, fixing base fixed mounting is in frame main part, and roating seat axial locking and circumferencial direction can wind vertical pivot pivoted and install on the fixing base, and the seat pocket can be fixed install on the roating seat, and the push rod lower extreme can wind the horizontal axis pivoted that the horizontal direction extends and install on the roating seat, is equipped with two at least first locking fastener along its axis symmetrical arrangement on the roating seat, is equipped with at least one second locking fastener on the fixing base, each first locking fastener on the roating seat rotate along with the roating seat respectively can with the fixing base on second locking fastener lock fixed connection, unblock operating means can drive first locking fastener and the separation of second locking fastener dropout.

2. The stroller frame push rod and seat pocket synchronous reversing mechanism of claim 1, characterized in that: first locking fastener includes two at least eccentric jacks (6) and locking bolt (7) along roating seat axis symmetric arrangement, and second locking fastener is for locating positioning slot (8) on the fixing base, each eccentric jack spare on the roating seat rotates along with the roating seat respectively can just to the intercommunication with the positioning slot on the fixing base, locking bolt can be gliding installs on push rod lower extreme lateral wall, locking bolt rotates along with the push rod and can insert just to the eccentric jack and the positioning slot of intercommunication in with roating seat and fixing base fixed connection, and unblock operating means can drive locking bolt and slide and make it insert or withdraw from each eccentric jack and positioning slot.

3. The stroller frame push rod and seat pocket synchronous reversing mechanism of claim 2, characterized in that: the unlocking operation device comprises a handle (11), a pull rope (12) and a bolt resetting elastic part (13), wherein the handle can be installed on the outer side wall of the push rod in a set range, a hollow channel for the pull rope to penetrate is formed in the inner side of the push rod, one end of the pull rope is connected with the handle, the other end of the pull rope is connected with the locking bolt, the handle moves to drive the pull rope to slide in the hollow channel, then the locking bolt is pulled to slide along the eccentric jack, and the bolt resetting elastic part can provide elastic retaining force towards the eccentric jack and the direction of the positioning slot for the locking bolt.

4. The stroller frame push rod and seat pocket synchronous reversing mechanism of claim 3, characterized in that: the outer side wall of the circumference of the lower end of the push rod is provided with a radially extending bolt guide sleeve (14), the positioning bolt can slide for a set distance and is inserted into the bolt guide sleeve, the bolt resetting elastic piece is a spring inserted into the bolt guide sleeve, one end of the spring is fixedly connected with the inner side wall of the bolt guide sleeve, and the other end of the spring tightly abuts against the positioning bolt.

5. The stroller frame push rod and seat pocket synchronous reversing mechanism of claim 3, characterized in that: be equipped with slide (9) in the roating seat, the both ends of slide extending direction are just to the intercommunication with the opening of different eccentric jacks respectively, and the dead bolt can slide in the slide and get into different eccentric jacks.

6. The stroller frame push rod and seat pocket synchronous reversing mechanism of claim 5, characterized in that: the slide is the arc slide, and the slide intermediate position is formed with horizontal contact surface (10) with the dead bolt terminal surface matching, the horizontal contact surface can be hugged closely to the dead bolt tip when the dead bolt is in vertical state.

7. The stroller frame push rod and seat pocket synchronous reversing mechanism of claim 1, characterized in that: and a bearing is arranged between the fixed seat and the rotating seat.

8. The stroller frame push rod and seat pocket synchronous reversing mechanism of claim 5, characterized in that: the roating seat is including rotatory lower cover (15) and rotatory upper cover (16), fixed mounting that rotatory upper cover can be dismantled is covered on the surface of rotatory lower cover upper end, and the rotatory lower cover is located to eccentric jack, and rotatory lower cover still is equipped with lower constant head tank (17) of push rod with each eccentric jack intercommunication, and rotatory upper cover is equipped with constant head tank (18) on the push rod, the push rod lower extreme can the pivoted insert locate under the push rod constant head tank and the push rod on the constant head tank jointly form in the cylindric space.

9. The stroller frame push rod and seat pocket synchronous reversing mechanism of claim 1 or 8, characterized in that: the lower end of the push rod forms a horizontal rotating shaft (19) with the middle diameter larger than the diameters of the two ends, a cylindrical space with the middle diameter larger than the diameters of the two ends is formed in the rotating seat, the horizontal rotating shaft at the lower end of the push rod can be rotatably accommodated in the cylindrical space, and the step surfaces at the two sides of the lower end of the push rod in the axial direction are stopped on the step surfaces at the two sides of the cylindrical space in the axial direction.

10. The stroller frame push rod and seat pocket synchronous reversing mechanism of claim 1, characterized in that: the seat pocket can be fixed and the structure arranged on the rotating seat is as follows: the rotary seat is characterized in that a plug-in slide way (20) is arranged on the surface of the upper end of the rotary seat, an elastic buckle (21) with the height direction capable of elastically stretching is arranged on the bottom surface of the plug-in slide way, a slide rail is arranged on the seat pocket, the slide rail can be inserted into the plug-in slide way, the upper side plate and the lower side plate of the slide rail and the left side wall and the right side wall of the slide rail are respectively stopped on the inner side wall of the plug-in slide way, a clamping groove is formed in the bottom surface of the seat pocket slide rail, and the elastic buckle on the bottom surface of the plug-in slide way can be connected and positioned with the clamping groove in the bottom surface of the seat pocket slide rail.

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