CN218750962U

CN218750962U - Unlocking mechanism of children seat pocket

Info

Publication number: CN218750962U
Application number: CN202223450045.8U
Authority: CN
Inventors: 李伟琼; 钟友明
Original assignee: Kunshan Weikai Children Products Co Ltd
Current assignee: Kunshan Weikai Children Products Co Ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-03-28
Anticipated expiration: 2032-12-20

Abstract

The utility model discloses an unlocking mechanism of a child seat pocket, which comprises a lower frame body with an unfolding position and a folding position, a backrest frame which can rotate relative to the lower frame body and adjust the front and back angles, and a lower frame body locking mechanism which locks the lower frame body when the lower frame body is at the unfolding position, wherein the lower frame body locking mechanism can be turned over forwards by the backrest frame to unlock, a slidable locking piece is arranged at the rotating joint of the backrest frame and the lower frame body, and the locking piece can lock the backrest frame and the lower frame body when the backrest frame is at different working angles and can control whether the backrest frame can be turned forwards or not; the backrest frame is provided with a rotating handle which can rotate relative to the backrest frame and a limiting handle which can limit the rotating stroke of the rotating handle, and the rotating handle is directly or indirectly connected with the locking piece; the utility model discloses the different rotation strokes that utilize to rotate the handle can realize that the angle modulation and the seat pocket of back frame are folding, compare with prior art, need not to set up two sets of independent unlocking structure, and overall structure is simple and novel, has simplified the equipment step.

Description

Unlocking mechanism of children seat pocket

Technical Field

The utility model relates to an unlocking mechanism of children's seat pocket.

Background

A child seat pocket is one of necessary components of children products such as a child stroller and the like. The prior child stroller generally comprises a frame, a wheel assembly connected with the frame, and a seat pocket mounted and connected with the frame, wherein the seat pocket is used for seating a child. With the increasing demand of people for the comfort level of the infant, the seat bag is usually set to be in various states (including a sitting posture state and a lying posture state).

The child seat pocket in the prior art comprises a lower frame body with an unfolding position and a folding position, and a backrest frame capable of rotating relative to the lower frame body to adjust the front and rear angles, wherein the lower frame body is locked in the unfolding position through a lower frame body locking mechanism. In order to facilitate the conversion and use of the child seat pocket in a plurality of working states, the backrest frame is generally locked at different working angles through the backrest angle adjusting mechanism. However, the unlocking components of the existing lower frame body locking mechanism and the backrest angle adjusting mechanism are generally separately arranged, and are two independent unlocking structures, so that the overall structure is complex, the assembly is complicated, and the cost is high.

Disclosure of Invention

The utility model discloses the purpose is: the unlocking mechanism of the child seat pocket has the advantages that the angle adjustment of the backrest frame and the folding of the seat pocket can be realized by utilizing different rotating strokes of the rotating handle, the structure is simple and novel, the assembling steps are simplified, and the cost is reduced.

The technical scheme of the utility model is that: an unlocking mechanism of a child seat pocket comprises a lower frame body with an unfolding position and a folding position, a backrest frame capable of rotating relative to the lower frame body to adjust the front and back angles, and a lower frame body locking mechanism for locking the lower frame body when the lower frame body is at the unfolding position, wherein the lower frame body locking mechanism can be unlocked by forward turning of the backrest frame, a movable locking piece is arranged at the rotating connection position of the backrest frame and the lower frame body, and the locking piece can be used for locking the backrest frame and the lower frame when the backrest frame is at different working angles and controlling the backrest frame to be capable of forward turning; the backrest frame is provided with a rotating handle which can rotate relative to the backrest frame and a limiting handle which can limit the rotating stroke of the rotating handle, and the rotating handle is directly or indirectly connected with the locking piece; the rotation handle realizes the angle adjustment of the backrest frame and the folding of the seat pocket through different rotation strokes.

Furthermore, the limit handle is rotatably arranged on the rotating handle and is switched between a limiting position and a non-limiting position through rotating motion, and a second return spring is arranged between the limit handle and the rotating handle.

Furthermore, a limit pin which can slide relative to the inside and the outside of the backrest frame penetrates through the backrest frame; a limiting groove for the outer end of the limiting pin to slide is formed in the inner side of the limiting handle, and a limiting step is formed on one side of the limiting groove.

Furthermore, a traction rope is connected to the locking piece, the rotating handle is connected with the upper end of the traction rope through a linkage mechanism, and the rotating handle changes the position of the locking piece through adjusting the rotating stroke and the linkage action of the linkage mechanism and the traction rope.

Furthermore, the linkage mechanism comprises a rotating handle inner sleeve which is arranged in the rotating handle and is relatively fixed with the rotating handle inner sleeve, and an inclined groove is formed in the rotating handle inner sleeve; the traction cable column is installed at the upper end of the traction cable, a guide groove for the traction cable column to slide is formed in the backrest frame, the traction cable penetrates through the backrest frame, and the traction cable column penetrates through the guide groove to be inserted into the inclined groove and is in sliding fit with the inclined plane of the inclined groove.

Further, the lower frame body comprises a cushion frame, a seat pocket socket connected and assembled with the frame, a front handrail component and a connecting rod; the back frame lower extreme in proper order with preceding handrail subassembly the seat pocket socket rotates to be connected, the cushion frame rear side with the seat pocket socket rotates to be connected, the connecting rod upper end rotates with preceding handrail subassembly to be connected, the connecting rod lower extreme with the cushion frame front portion rotates to be connected.

Further, lower carriage locking mechanical system including set up before handrail subassembly with the gear between the seat pocket socket, preceding handrail subassembly with have respectively in the seat pocket socket with the first tooth's socket of gear complex and second tooth's socket, be provided with gear spring between gear and first tooth's socket or the second tooth's socket.

Further, a gear top block is arranged between the gear and the front armrest assembly, and an extension strip of the gear top block penetrates through an open slot of the front armrest assembly and is exposed out of the front armrest assembly; the inner cavity wall of the backrest frame is provided with a guide groove corresponding to the extension strip, and the end part of the guide groove is provided with a guide inclined plane for the extension strip to slide out.

Furthermore, two ends of the locking piece are provided with an upper locking block and a lower blocking block which are protruded, and a first return spring is arranged between the locking piece and the backrest frame; a convex gear is formed on one side of the front handrail assembly, which is close to the backrest frame, and the convex gear is provided with a plurality of locking grooves for locking the upper locking blocks of the locking pieces; the convex gear is provided with a movable groove for the lower stop block to slide and for the lower stop block to move circumferentially when the locking piece is positioned at a first unlocking position, and an arc-shaped groove for the lower stop block to move circumferentially when the locking piece is positioned at a second unlocking position; the movable groove is communicated with the arc-shaped groove, and the maximum outer diameter of the movable groove is larger than that of the arc-shaped groove.

Furthermore, the locking piece middle part has a guide way, the rotation connecting axle between back frame, preceding handrail subassembly and the seat pocket socket wear to establish in the guide way, just first reset spring sets up between this rotation connecting axle and guide way.

The utility model has the advantages that: the utility model discloses utilize the different rotation strokes of rotation handle can realize that the angle modulation and the seat pocket of back frame are folding, compare with prior art, need not to set up two sets of independent unlocking structure, and overall structure is simple and novel, has simplified the equipment step, the cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the utility model in a use state;

FIG. 2 is a schematic side view of the structure of FIG. 1;

FIG. 3 is a schematic view of the rotary handle and the stop handle of FIG. 1 shown in exploded view;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIGS. 5 and 6 are schematic views of the assembly structure at the folding joint;

fig. 7 is a schematic side sectional view of the utility model in use;

FIG. 8 is a schematic cross-sectional view of the handle and the stop handle of FIG. 7;

FIG. 9 is a schematic cross-sectional view of the folding joint of FIG. 7; (locking member in locked position)

FIG. 10 is a schematic cross-sectional view of the rotating handle of the present invention in a first adjustment position;

FIG. 11 is a schematic cross-sectional view of the handle and the stop handle of FIG. 10;

FIG. 12 is a cross-sectional view of the folding joint of FIG. 10; (with locking member in first unlocked position)

Fig. 13 is a schematic sectional view of the rotary handle of the present invention in the second adjustment position;

FIG. 14 is a schematic cross-sectional view of the twist grip and the stop tab of FIG. 13;

fig. 15 is a cross-sectional view of the folding joint in fig. 13. (with the locking member in the first unlocked position)

Wherein: a, lower support; 1 a backrest frame; 101 a guide groove; 2, a lower frame body locking mechanism; 201 gear wheel; 202 a first tooth slot; 203 a second gullet; 204 a gear spring; 205 a gear crown block; 2051 an extension bar; 3 locking piece; 301, locking the block; a 302 lower stop block; 303 a guide groove; 4, rotating the handle; 5, a limit handle; 501, limiting a groove; 502 limit steps; 6, a traction rope; 7 a second return spring; 8, a linkage mechanism; 801 turning the inner sleeve of the handle; 802 an inclined groove; 803 traction cable columns; 804 a guide slot; 9 a cushion frame; 10 seat pocket socket; 11 a front armrest assembly; 1101 a spur gear; 1102 locking a groove; 1103 moving slot; 1104 an arc-shaped slot; 12 connecting rods; 13 a first return spring; 14 stop pin.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the application without any inventive step, are within the scope of protection of the application. It will be understood that some of the technical means of the various embodiments described herein may be replaced or combined with each other without conflict.

In the description of the present application and claims, the terms "first," "second," and the like, if any, are used solely to distinguish one from another as between described objects and not necessarily in any sequential or technical sense. Thus, an object defined as "first," "second," etc. may explicitly or implicitly include one or more of the object. Also, the use of the terms "a" or "an" and the like, do not denote a limitation of quantity, but rather denote the presence of at least one of the two, and "a plurality" denotes no less than two.

In the description of the present application and the claims, the terms "connected," "mounted," "fixed," "housed," and the like are used broadly unless otherwise indicated. For example, "connected" may be a separate connection or may be integrally connected; can be directly connected or indirectly connected through an intermediate medium; may be non-detachably connected or may be detachably connected. For example, "accommodated" does not necessarily mean that the entire body is completely accommodated, and the concept also includes a partial accommodation case in which a part protrudes outward. The specific meaning of the foregoing terms in the present application can be understood by those skilled in the art as appropriate.

In the description of the present application and in the claims, if there is an orientation or positional relationship indicated by the terms "upper", "lower", "horizontal", etc. based on the orientation or positional relationship shown in the drawings, it is only for the convenience of clearly and simply describing the present application, and it is not indicated or implied that the elements referred to must have a specific direction, be constructed and operated in a specific orientation, and these directional terms are relative concepts for the sake of description and clarification and may be changed accordingly according to the change of orientation in which the elements in the drawings are placed. For example, if the device in the figures is turned over, elements described as "below" other elements would then be oriented "above" the other elements.

In the description of the present specification and claims, the term "if present, depending on the context, may generally be interchanged with" when … "or" when … "or" in response to a determination "or" in response to a detection ".

In the description of the present specification and claims, if there is "direction" with respect to motion, including motion having a directional component, the term "in direction" is not necessarily to be construed as motion in only that one direction, and those skilled in the art will understand the specific meaning of the aforementioned terms in the present application as the case may be.

As shown in fig. 1 to 15, an unlocking mechanism for a child seat pocket comprises a lower frame a having an unfolding position and a folding position, a back frame 1 capable of rotating relative to the lower frame a to adjust a front-back angle, and a lower frame locking mechanism 2 for locking the lower frame a when the lower frame a is at the unfolding position, wherein the lower frame locking mechanism 2 can be unlocked by forward turning of the back frame 1, a slidable locking piece 3 is arranged at a rotating connection position of the back frame 1 and the lower frame a, and the locking piece 3 can be used for locking the back frame 1 and the lower frame a when the back frame 1 is at different working angles and controlling whether the back frame 1 can be forward turned; the backrest frame 1 is provided with a rotating handle 4 which can rotate relative to the backrest frame and a limit handle 5 which can limit the rotating stroke of the rotating handle 4, and the rotating handle 4 is directly or indirectly connected with the locking piece 3. The rotating handle 4 realizes the angle adjustment of the backrest frame 1 and the folding of the seat bag through different rotating strokes.

Wherein, the limit handle 5 is movably arranged on the rotating handle 4, and the limit handle 5 has a limit position and a non-limit position relative to the rotating handle 4; the rotating handle 4 has a first adjusting position and a second adjusting position relative to the backrest frame 1; the locking member 3 has a locking position, a first unlocking position and a second unlocking position;

when the limiting handle 5 is located at the limiting position, the rotating handle 4 is rotated, the rotating handle 4 enters a first adjusting position, the locking piece 3 is pulled by the traction rope 6 to enter a first unlocking position and the locking of the backrest frame 1 is released, at this time, the backrest frame 1 can rotate relative to the lower frame body A and the working angle is adjusted, but at this time, the backrest frame 1 cannot be turned forwards and the locking of the lower frame body locking mechanism 2 cannot be released;

when the limiting handle 5 is located at a non-limiting position, the rotating handle 4 is rotated, the rotating handle 4 enters a second adjusting position, the locking piece 3 is pulled by the traction rope 6 to enter a second unlocking position, the locking on the backrest frame 1 is released at the moment, the backrest frame 1 can be turned forwards to release the locking of the lower frame body locking mechanism 2 on the lower frame body A, and then the seat pocket is folded.

In this embodiment, the stop handle 5 is rotatably mounted on the rotating handle 4, and is switched between a limiting position and a non-limiting position through a rotating motion, the rotating direction of the stop handle is preferably to rotate backwards and downwards, and the rotating handle 4 is preferably to rotate backwards and upwards; and a second return spring 7 is arranged between the limiting handle 5 and the rotating handle 4. A limit pin 14 which can slide relative to the inside and the outside of the backrest frame 1 penetrates through the backrest frame; a limit groove 501 for the outer end of the limit pin 14 to slide is formed on the inner side of the limit handle 5, and a limit step 502 is formed on one side of the limit groove 501.

In this embodiment, the rotating handle 4 is indirectly connected to the locking member 3 through a traction cable 6, and the specific implementation is as follows: the rotating handle 4 is connected with the upper end of the traction cable 6 through a linkage mechanism 8, and the rotating handle 4 changes the position of the locking piece 3 through adjusting the rotating stroke and the linkage action of the linkage mechanism 8 and the traction cable 6.

Preferably, the linkage mechanism 8 comprises a rotating handle inner sleeve 801 which is arranged in the rotating handle 4 and is fixed relative to the rotating handle inner sleeve 801, and an inclined groove 802 is arranged on the rotating handle inner sleeve 801; the upper end of the traction cable 6 is provided with a traction cable column 803, the backrest frame 1 is provided with a guide groove 804 for the traction cable column 803 to slide, the traction cable 6 is arranged in the backrest frame 1 in a penetrating way, and the traction cable column 803 penetrates through the guide groove 804 to be inserted into the inclined groove 802 to be in sliding fit with the inclined surface.

When the rotating handle 4 rotates, the inclined groove 802 is in sliding fit with the traction cable column 803, the traction cable column 803 is driven to slide inwards along the guide groove 804, the traction cable 6 is tensioned, and the traction stroke of the traction cable 6 is changed by adjusting the rotating stroke of the rotating handle 4.

In this embodiment, the lower frame body a includes a cushion frame 9, a seat pocket socket 10 connected to the frame, a front armrest assembly 11, and a connecting rod 12; the lower end of the backrest frame 1 is sequentially connected with the front armrest component 11 and the seat pocket socket 10 in a rotating mode, the rear side of the seat cushion frame 9 is connected with the seat pocket socket 10 in a rotating mode, the upper end of the connecting rod 12 is connected with the front armrest component 11 in a rotating mode, and the lower end of the connecting rod 12 is connected with the front portion of the seat cushion frame 9 in a rotating mode.

In this embodiment, the lower frame locking mechanism 2 includes a gear 201 disposed between the front handle assembly 11 and the seat pocket socket 10, the front handle assembly 11 and the seat pocket socket 10 respectively have a first tooth slot 202 and a second tooth slot 203 engaged with the gear 201, and a gear spring 204 is disposed between the gear 201 and the first tooth slot 202 or the second tooth slot 203.

In this embodiment, a gear top block 205 is disposed between the gear 201 and the front armrest assembly 11, and an extension strip 2051 of the gear top block passes through an opening slot of the front armrest assembly 11 and exposes the front armrest assembly 11; a guide groove 101 corresponding to the extension strip 2051 is arranged on the inner cavity wall of the backrest frame 1, and a guide inclined surface for the extension strip 2051 to slide out is arranged at the end part of the guide groove 101; the two ends of the locking piece 3 are provided with a convex upper block 301 and a convex lower block 302, and a first return spring 13 is arranged between the locking piece 3 and the backrest frame 1; a convex gear 1101 is formed on one side of the front armrest assembly 11 close to the backrest frame 1, and the convex gear 1101 has a plurality of locking grooves 1102 for locking the upper locking block 301 of the locking piece 3; the spur gear 1101 has a movable groove 1103 for sliding the lower stopper 302 and for circumferential movement of the lower stopper 302 when the locking member 3 is in the first unlocked position, and an arcuate groove 1104 for circumferential movement of the lower stopper 302 when the locking member 3 is in the second unlocked position.

In the present embodiment, the locking groove 1102 is formed on the top rear side of the convex gear 1101, the movable groove 1103 is formed on the bottom front side of the convex gear 1101, and the arc-shaped groove 1104 is formed on the bottom rear side of the convex gear 1101; the movable slot 1103 is communicated with the arc-shaped slot 1104, and the maximum outer diameter of the movable slot 1103 is larger than the maximum outer diameter of the arc-shaped slot 1104, and the minimum inner diameters of the movable slot 1103 and the arc-shaped slot 1104 are the same; the design is that when the locking piece 3 is at the first unlocking position, the backrest frame 1 can only rotate in the adjusting range and can not be turned forwards, and when the locking piece 3 is at the second unlocking position, the backrest frame 1 can only be turned forwards, so that the locking of the lower frame body locking mechanism 2 can be released.

In this embodiment, the locking member 3 is configured to slide radially, and the specific mounting manner thereof is as follows: the locking piece 3 has a guide groove 303 in the middle, the rotation connecting shaft between the backrest frame 1, the front armrest assembly 11 and the seat pocket socket 10 is inserted in the guide groove 303, and the first return spring 13 is arranged between the rotation connecting shaft and the guide groove 303.

The utility model discloses a theory of operation does:

when the lower frame body A is in the unfolding position, the gear 201 is clamped between the first tooth groove 202 and the second tooth groove 203 at the same time, and the lower frame body locking mechanism 2 is in a locking state; the extension strip 2051 is now located in the guide groove 101.

When the backrest frame 1 is at the working position, the limit handle 5 is at the limiting position and the rotating handle 4 is not rotated, the limit handle 5 is pressed inwards under the action of the elastic force of the second return spring 7, and the limit pin 14 is abutted against the limit groove 501; at this time, the upper lock block 301 of the locking member 3 is locked into the corresponding lock groove 1102 under the action of the first return spring 13, so as to lock the backrest frame 1 and the front armrest assembly 11, and at this time, the backrest frame 1 cannot rotate relative to the lower frame body a and the working angle can not be adjusted.

When the limiting handle 5 is in a limiting position and the rotating handle 4 rotates, the limiting pin 14 slides in the limiting groove 501, when the limiting pin 14 slides to one side of the limiting groove 501 and abuts against the limiting step 502, the rotating handle 4 is limited and cannot rotate continuously, at the moment, the rotating handle 4 is in a first adjusting position, and the rotating handle 4 pulls the locking piece 3 into a first unlocking position through the traction cable 6. When the locking piece 3 is in the first unlocking position, the upper locking piece 301 exits from the locking groove, and the backrest frame 1 can rotate relative to the lower frame body a and adjust the working angle; at this time, the lower stopper 302 can move in the inner circumference direction of the movable groove 1103 but cannot enter the arc-shaped groove 1104, and the backrest frame 1 cannot be turned forward, that is, the locking of the lower frame locking mechanism 2 cannot be released.

When the limiting handle 5 is in the non-limiting position, the limiting pin 14 exits the limiting groove 501 of the limiting handle 5, at this time, the rotating handle 4 can continue to rotate, and when the rotating handle 4 rotates to the second adjusting position, the rotating handle pulls the locking piece 3 to enter the second unlocking position through the traction rope 6. When the locking piece 3 is in the second unlocking position, the upper locking piece 301 exits from the locking groove, the locking of the backrest frame 1 is released, and the backrest frame 1 can rotate relative to the lower frame body a; at the same time, the lower stop 302 enters the arcuate slot 1104 and is circumferentially movable therein. When the lower stopper 302 moves circumferentially in the arc-shaped groove 1104, the backrest frame 1 is turned forward. When the backrest frame 1 is turned forward, the extension strip 2051 is in sliding fit with the guide groove 101 and slides out of the guide groove 101, at this time, the gear 201 moves axially, the gear 201 exits the first tooth groove 202 and completely enters the second tooth groove 203, and the lower frame body locking mechanism 2 is in an unlocked state.

The utility model discloses utilize the different rotation strokes of rotation handle can realize that the angle modulation and the seat pocket of back frame 1 are folding, compare with prior art, need not to set up two sets of independent unlocking structure, and overall structure is simple and novel, has simplified the equipment step, the cost is reduced.

The above is only a specific application example of the present invention, and does not set any limit to the protection scope of the present invention. In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the scope of the present invention as claimed.

Claims

1. The utility model provides an unlocking mechanism of children's seat pocket, includes the lower frame body that has expansion position and folding position, can relatively lower frame body rotate the back frame of angle around adjusting, and be in the lower frame body locking mechanical system who realizes the locking to it when expanding the position of lower frame body, its characterized in that: the lower frame body locking mechanism can be unlocked by forward turning of the backrest frame, a movable locking piece is arranged at the rotary joint of the backrest frame and the lower frame body, and the locking piece can lock the backrest frame and the lower frame when the backrest frame is at different working angles and can control the backrest frame to be capable of forward turning; the backrest frame is provided with a rotating handle which can rotate relative to the backrest frame and a limiting handle which can limit the rotating stroke of the rotating handle, and the rotating handle is directly or indirectly connected with the locking piece; the rotation handle realizes the angle adjustment of the backrest frame and the folding of the seat pocket through different rotation strokes.

2. The unlocking mechanism of a seat pocket for children as claimed in claim 1, wherein: the limiting handle is rotatably arranged on the rotating handle, and a second return spring is arranged between the limiting handle and the rotating handle.

3. An unlocking mechanism of a seat bag for children according to claim 2, characterized in that: a limiting pin which can slide relative to the inside and the outside of the backrest frame is arranged on the backrest frame in a penetrating way; a limiting groove for the outer end of the limiting pin to slide is formed in the inner side of the limiting handle, and a limiting step is formed on one side of the limiting groove.

4. The unlocking mechanism of a seat pocket for children as claimed in claim 1, wherein: the locking piece is connected with a traction cable, the rotating handle is connected with the upper end of the traction cable through a linkage mechanism, and the rotating handle changes the position of the locking piece through adjusting the rotating stroke and the linkage action of the linkage mechanism and the traction cable.

5. An unlocking mechanism of a seat bag for children according to claim 4, characterized in that: the linkage mechanism comprises a rotating handle inner sleeve which is arranged in the rotating handle and is relatively fixed with the rotating handle inner sleeve, and an inclined groove is formed in the rotating handle inner sleeve; the traction cable column is installed at the upper end of the traction cable, a guide groove for the traction cable column to slide is formed in the backrest frame, the traction cable penetrates through the backrest frame, and the traction cable column penetrates through the guide groove to be inserted into the inclined groove and is in sliding fit with the inclined plane of the inclined groove.

6. The unlocking mechanism of a seat pocket for children as claimed in claim 1, wherein: the lower frame body comprises a cushion frame, a seat pocket socket connected and assembled with the frame, a front handrail component and a connecting rod; the back frame lower extreme in proper order with preceding handrail subassembly the seat pocket socket rotates to be connected, the cushion frame rear side with the seat pocket socket rotates to be connected, the connecting rod upper end rotates with preceding handrail subassembly to be connected, the connecting rod lower extreme with the cushion frame front portion rotates to be connected.

7. The unlocking mechanism of a seat pocket for children as claimed in claim 6, wherein: the lower frame body locking mechanism comprises a gear arranged between a front armrest component and a seat pocket socket, a first tooth groove and a second tooth groove matched with the gear are formed in the front armrest component and the seat pocket socket respectively, and a gear spring is arranged between the gear and the first tooth groove or the second tooth groove.

8. An unlocking mechanism of a seat bag for children according to claim 7, characterized in that: a gear top block is arranged between the gear and the front armrest assembly, and an extension strip of the gear top block penetrates through an open slot of the front armrest assembly and is exposed out of the front armrest assembly; the inner cavity wall of the backrest frame is provided with a guide groove corresponding to the extension strip, and the end part of the guide groove is provided with a guide inclined plane for the extension strip to slide out.

9. An unlocking mechanism of a seat bag for children according to claim 8, characterized in that: the two ends of the locking piece are provided with an upper locking block and a lower blocking block which are protruded, and a first return spring is arranged between the locking piece and the backrest frame; a convex gear is formed on one side of the front handrail assembly, which is close to the backrest frame, and the convex gear is provided with a plurality of locking grooves for locking the upper locking blocks of the locking pieces; the convex gear is provided with a movable groove for the lower stop block to slide and for the lower stop block to move circumferentially when the locking piece is positioned at a first unlocking position, and an arc-shaped groove for the lower stop block to move circumferentially when the locking piece is positioned at a second unlocking position; the movable groove is communicated with the arc-shaped groove, and the maximum outer diameter of the movable groove is larger than that of the arc-shaped groove.

10. An unlocking mechanism of a seat bag for children according to claim 9, characterized in that: the middle part of the locking piece is provided with a guide groove, the backrest frame, the front handrail component and the rotating connecting shaft between the seat pocket sockets are arranged in the guide groove in a penetrating way, and the first return spring is arranged between the rotating connecting shaft and the guide groove.