CN217294638U - Folding seat pocket of shallow and folding shallow of children - Google Patents

Abstract

The utility model provides a folding seat pocket of shallow and folding shallow of children, this folding seat pocket of shallow includes the back joint of coaxial pin joint, the seat joint, with the base joint, be provided with back latch mechanism between back joint and seat joint, be provided with seat latch mechanism between seat joint and base joint, thereby control the removal of elasticity latch fitting and realize back latch mechanism unblock, thereby make the relative seat joint of back joint can adjust back joint angle or direct folding, and be under the relative seat joint of back joint is in folding position, continue to control the removal of elasticity latch fitting this moment again, just make seat latch mechanism unblock, thereby back joint is folding with the synchronous relative base joint of seat joint, the operation is convenient, folding back volume is less, occupation space is little, be convenient for deposit and carry, and transportation cost is reduced.

Description

Folding stroller seat and children's folding stroller

technical field

The utility model belongs to the field of children's products, in particular to a folding seat pocket of a stroller and a children's folding stroller.

Background technique

A children's folding stroller generally includes a frame that can be unfolded and folded, a plurality of wheel assemblies arranged at the bottom of the frame, and a seat pocket arranged between the left and right side brackets of the frame.

In the prior art, most of the seat pockets cannot be folded, so that the children's folding stroller still has a large volume after being folded. The compact size after folding and the convenient folding operation have always been the common goals pursued in the industry.

In order to further reduce the volume of the children's folding stroller after being folded, a solution for folding seat pockets is provided in the patent authorization publication number CN 214451257U. The folding seat pocket of the cart includes a base joint, a backrest joint rotatably connected with the base joint through a central axis, and a backrest positioning mechanism is arranged between the base joint and the backrest joint. It also includes an auxiliary bearing joint for installing functional components such as seat pockets. The auxiliary bearing joint is also coaxially connected to the base joint through the central axis, and the base joint and the auxiliary bearing joint are arranged between the joints. There is an unfolding positioning mechanism. When the seat pocket needs to be folded, the backrest positioning mechanism is controlled to be in the unlocked position, and through the rotation of the backrest joint relative to the base joint, the internal grooves, pins and other components cooperate with each other, thereby controlling the unfolding positioning mechanism to unlock from the locked position. The position conversion realizes the folding of the backrest joint, the auxiliary joint and the base joint.

Utility model content

The technical problem to be solved by the utility model is to provide a folding seat pocket for a cart.

In order to solve the above-mentioned technical problems, the technical scheme adopted by the present invention is: a folding seat pocket of a cart, comprising a back joint, a seat joint and a base joint which are connected in turn through a shaft of the seat pocket, and the back joint is connected to the base joint. A backrest locking mechanism is arranged between the seat joints, and the backrest joints have an unfolded position and a folded position relative to the seat joints. A lock member, a seat lock mechanism with a seat transmission member is arranged between the seat joint and the base joint, and the seat joint has an unfolded position and a folded position relative to the base joint. When the backrest joint is in the In the folded position, the lock portion faces the seat transmission member, when the backrest joint is in the unfolded position, the lock portion deviates from the seat transmission member, and when the backrest joint is in the unfolded position, the control The movement of the elastic lock makes the backrest lock mechanism switch from the locked position to the unlocked position. When the backrest lock mechanism is in the unlocked position, the backrest joint rotates relative to the seat joint to the folded position, and controls the Further movement of the resilient lock causes the seat lock mechanism to transition from the locked position to the unlocked position.

In some embodiments, the elastic locking member is slidably disposed on the backrest joint along the radial direction of an axis of the seat pocket, and the backrest locking mechanism further comprises a side portion of the seat joint opened on one side. The arc-shaped chute, a plurality of radial lock grooves distributed along the length direction of the arc-shaped chute and communicated with it, a radial control slot located at the end of the arc-shaped chute and communicated with it , the radial lock groove and the radial control groove are respectively located on both sides of the arc-shaped chute, when the backrest lock mechanism is in the locked position, the lock portion is located in one of the radial lock grooves , when the backrest lock mechanism is in the unlocked position, the lock portion is located in the arc-shaped chute.

In certain embodiments, the seat lock mechanism includes a seat transmission member cavity disposed on the seat knuckle facing the radial control slot, opening on the other side of the seat knuckle and facing the radial control slot. The seat lock hole of the seat transmission member cavity, the seat transmission member movably arranged in the seat transmission member cavity, and the seat elastic lock movably arranged on the base joint, the seat transmission member has control When the seat lock mechanism is in the locked position, the seat elastic lock is inserted into the seat lock hole, the push lock portion is located in the seat transmission member cavity, the control portion is located in the radial control groove, when the seat lock mechanism is in the unlocked position, the control part is located in the seat transmission member cavity, the push-lock part is located in the seat lock hole, the seat elastic The lock exits the seat keyhole.

In some embodiments, the seat transmission member is slidably arranged on the seat joint, the seat elastic lock is slidably arranged on the base joint, the sliding direction of the seat transmission member, the seat elastic lock The sliding directions of the seat pockets are respectively parallel to the axis direction of the seat pocket.

In some embodiments, armrest joints are connected to the seat joints through biaxial rotation of the seat pockets, and an armrest lock mechanism is provided between the armrest joints and the seat joints, and the armrest lock mechanism includes a movable elastic The elastic handrail transmission part in the arc-shaped chute, the elastic handrail transmission part is located in all the arc-shaped chute segments between the radial locking grooves and the radial control grooves, and the elastic handrail transmission The armrest is provided with a ramp surface of the armrest transmission portion which interferes with the corresponding lock portion when it slides over to exit the arc-shaped chute, the armrest joint is fixed with the armrest frame, and the backrest joint is fixed with the backrest frame, When the armrest locking mechanism is in the unlocking position, the armrest frame blocks the front side of the backrest frame.

In some embodiments, the armrest lock mechanism includes an armrest lock member in the middle part that is rotatably connected to the seat joint around the seat pocket triaxiality, and an armrest deployment slot disposed on the armrest joint. The seat pocket triaxiality The axis line of the armrest is arranged along the tangential direction of one axis of the seat pocket, one end of the armrest lock is the armrest lock, and the other end of the armrest lock is the elastic armrest transmission part. When the armrest lock mechanism is in the locked position, the elastic armrest transmission part extends into the arc-shaped chute, and the armrest lock is inserted into the armrest unfolding slot. When the armrest lock mechanism is in the unlocked position, all the The elastic armrest transmission part exits the arc-shaped chute, and the armrest lock is disengaged from the armrest unfolding slot.

Another technical problem to be solved by the present invention is to provide a folding stroller for children.

In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a children's folding stroller according to any one of the above-mentioned embodiments of the folding seat pockets of the stroller, the children's folding stroller includes a frame having an unfolded position and a folded position , A plurality of wheel assemblies arranged at the bottom of the frame, the frame includes side brackets located on the left and right sides, the folding seat pockets of the stroller arranged between the left and right side brackets, the base The joints are respectively fixed or detachably connected with the corresponding side brackets.

In some embodiments, the vehicle frame further includes a base, the side brackets on both sides are upwardly formed on the left and right side portions of the base, respectively, and the side brackets on each side include sleeves on the base. And can take the center line extending in the front and rear directions of itself as the bottom wheel frame of the turning shaft, and the connecting rod arranged on the base to rotate around the folding axis extending left and right, the connecting rod has a connecting rod swing section, and the bottom is The front end of the wheel frame is provided with a front wheel assembly, the rear end of the bottom wheel frame is provided with a rear wheel assembly, the bottom wheel frame is provided with a fixed upper limit portion and a lower limit portion, and the link swing section is located at the Between the upper limit portion and the lower limit portion, when the frame is converted to the unfolded position or to the folded position, the connecting rod rotates around the folding axis relative to the base, and the connecting rod rotates around the folding axis. The lever swing section abuts on the lower limit portion or hooks on the upper limit portion to cause the bottom wheel frame to rotate relative to the base.

In some embodiments, the side brackets on each side further include a front bracket whose lower end is pivotally connected to the base around the folding two axes, a push rod bracket slidably arranged on the front bracket, and an outer bracket. A sliding sleeve, the upper end of the connecting rod and the lower part of the outer sliding sleeve are pivotally connected around the folding three-axis, the folding one axis, the two folding axes, and the three folding axes are arranged in parallel, and the folding The two shafts are located in front of the first folding shaft, a push rod locking mechanism is arranged between the front support frame and the push rod frame, and a push rod locking mechanism is arranged between the front support frame and the outer sliding sleeve. The rod frame slides down in place to trigger the unlocked sliding sleeve locking mechanism, and the base joints are respectively fixed or detachable connected with the corresponding front support frame.

In some embodiments, the bottom wheel frame includes a bottom wheel shaft segment, a rear wheel joint portion fixed to the rear end of the bottom wheel shaft segment, and a front wheel joint portion fixed to the front end of the bottom wheel shaft segment , the front wheel assembly is arranged on the front wheel joint portion, the rear wheel assembly is arranged on the rear wheel joint portion, and the upper limit portion is arranged on the bottom wheel shaft section or the rear wheel joint The upper part of the part, the lower limit part is arranged on the rear wheel joint part.

The scope of the present invention is not limited to the technical solutions formed by the specific combination of the above technical features, but also covers other technical solutions formed by any combination of the above technical features or their equivalents. For example, a technical solution or the like is formed by replacing the above-mentioned features with the technical features disclosed in this application (but not limited to) with similar functions.

Due to the application of the above technical solutions, the utility model has the following advantages compared with the prior art: the utility model provides a new folding concept of a folding seat pocket for a stroller and a folding stroller for children, and the folding seat pocket for the stroller includes a coaxial The backrest joint, the seat joint, and the base joint are pivotally connected, a backrest lock mechanism is arranged between the backrest joint and the seat joint, and a seat is arranged between the seat joint and the base joint The lock mechanism controls the movement of the elastic lock piece to unlock the backrest lock mechanism, so that the backrest joint can adjust the angle of the backrest joint relative to the seat joint or fold directly, and when the backrest joint is in the folded position relative to the seat joint, continue to control the elastic lock piece. Moving, the seat lock mechanism is unlocked, so that the back joint and the seat joint are synchronously folded relative to the base joint, the operation is convenient, the folded volume is small, the occupied space is small, the storage and carrying are convenient, and the transportation cost is reduced.

Description of drawings

Accompanying drawing 1 is the three-dimensional schematic diagram of the children's folding stroller with the seat pocket in the unfolded position;

Accompanying drawing 2 is the three-dimensional schematic diagram of seat pocket in the unfolded position;

Accompanying drawing 3 is the partial sectional view of A-A direction of accompanying drawing 2;

4 is a schematic side view of the seat pocket during the transition from the unfolded position to the folded position;

Accompanying drawing 5 is the B-B direction partial sectional view of accompanying drawing 4;

6 is a side schematic view of the seat pocket in a folded position;

Accompanying drawing 7 is the C-C direction partial sectional view of accompanying drawing 6;

Accompanying drawing 8 is the structural exploded schematic diagram between the backrest joint and the seat joint;

Accompanying drawing 9 is the structural exploded schematic diagram between seat joint and armrest joint;

10 is a schematic exploded view of the structure between the back joint, seat joint, base joint and armrest joint of the seat pocket;

Figure 11 is a perspective view of a children's folding stroller with the seat pocket in the folded position;

Figure 12 is a perspective view of the children's folding stroller alone in the folding process after the seat pocket is removed;

Figure 13 is a perspective view of the children's folding stroller in the folded position alone after the seat pocket is removed;

Among them: 1. Cart folding seat pocket; 11. Backrest joint; 111. Backrest frame; 12. Seat joint; 121. Seat frame; 13. Base joint; 14. Armrest joint; 141. Armrest frame; 15. Backrest lock mechanism; 151, elastic lock; 152, arc chute; 153, radial lock groove; 154, radial control groove; 16, seat lock mechanism; 161, seat transmission part; 162, seat transmission part cavity; 163, Seat lock hole; 164, seat elastic lock; 17, armrest lock mechanism; 171, armrest lock; 171a, armrest lock; 171b, elastic armrest transmission part; 172, armrest deployment slot; X11, seat pocket axis; X12, seat pocket two axles; X13, seat pocket three axles; 2, side brackets; 21, bottom wheel frame; 21a, upper limit part; 21b, lower limit part; 211, bottom wheel shaft section; 212, front wheel joint part; 213 , rear wheel joint; 22, connecting rod; 22a, connecting rod pendulum; 23, front support frame; 24, outer sliding sleeve; 25, push rod frame; X21, one folding axis; X22, two folding axes; X23, Folding three axles; X24, flip axle; 3, bottom frame; 31, bottom front pedal; 32, bottom mounting part; 41, front wheel assembly; 42, rear wheel assembly.

Detailed ways

As shown in the accompanying drawings, a stroller folding seat pocket 1 that can be fixedly installed or detachably installed on a children's folding stroller can be directly folded on the stroller, and then folded together with the frame of the children's folding stroller, Reduced folded volume.

As shown in FIGS. 2-10 , the cart folding seat pocket 1 includes left and right joint mechanisms, including a base joint 13 , a seat joint 12 and a backrest joint 11 pivotally connected in sequence through an axis X11 of the seat pocket. A backrest frame 111 is fixed on the backrest joints 11 on both sides, and a seat frame 121 is fixed between the two seat joints 12 .

A backrest locking mechanism 15 is arranged between the backrest joint 11 and the seat joint 12 . After the backrest locking mechanism 15 is unlocked, the backrest joint 11 can rotate relative to the seat joint 12 and switch between the unfolded position and the folded position. A seat lock mechanism 16 is provided between the seat joint 12 and the base joint 13 . After the seat lock mechanism 16 is unlocked, the backrest joint 11 is converted between the unfolded position and the folded position with the seat joint 12 relative to the base joint 13 .

The backrest lock mechanism 15 and the seat lock mechanism 16 are unlocked successively, and are controlled and unlocked by the same unlocking component. After the unlocking part controls the backrest lock mechanism 15 to be unlocked, the backrest joint 11 is relatively rotated relative to the seat joint 12 to the folded position, that is, the position between the two joints has been rotated relative to the seat pocket axis X11 and changed, and the seat lock mechanism 16 Presented in front of the unlocking part, so that it can also be controlled by the unlocking part. As for the unlocking component, as a power source component, it is theoretically feasible to rotate or slide, as long as the specific mechanism operations of the specific backrest lock mechanism 15 and seat lock mechanism 16 can be adapted to cooperate with the unlocking component.

In this embodiment, the detailed structure of the backrest locking mechanism 15 is shown in FIGS. 7 , 8 , and 10 . The unlocking component is an elastic locking member 151 slidably arranged on the backrest joint 11 . The so-called elastic locking member 151 refers to the fitting and installation of a restoring spring. After controlling its movement and releasing, the restoring spring controls its return.

As shown in FIG. 8 , the detailed structure of the backrest lock mechanism 15 is as follows: it includes an elastic lock member 151 slidably arranged on the backrest joint 11 along the radial direction of the seat pocket axis X11, that is, the above-mentioned unlocking component, and also includes a seat joint provided on the seat joint. The structure on one side of the 12 that is adapted to the elastic lock piece 151, namely the arc-shaped chute 152, a plurality of radial lock slots 153 distributed along the length of the arc-shaped chute 152 and communicated with it, a One end of the arc-shaped sliding groove 152 is also radially communicated with a radial control groove 154 , and a plurality of radial locking grooves 153 are close to the other end of the arc-shaped sliding groove 152 . The radial locking groove 153 and the radial control groove 154 are respectively located on both sides of the arc-shaped sliding groove 152 , that is, one of the radial locking groove 153 and the radial control groove 154 extends radially inward, and the other extends radially inward. Stretch out.

In this embodiment, both ends of the elastic locking member 151 have locking portions, and the corresponding arc-shaped sliding grooves 152 , radial locking grooves 153 and radial control grooves 154 on the corresponding seat joint 12 also have two groups. . The two ends are controlled, and the contact is larger.

In order to control the movement of the elastic lock 151, a back button is usually provided on the backrest frame 111, and the back button and the elastic lock 151 are connected by a traction rope to realize control. When released, the elastic lock 151 is reset under the action of the spring, Common structures are not described in detail.

2 , 3 and 8 , when the backrest joint 11 is in the unfolded position and the backrest locking mechanism 15 is in the locked position, the two locking portions of the elastic locking member 151 are inserted into the corresponding radial locking grooves 153 . The movement of the elastic lock piece 151 is controlled by the backrest button and the traction rope, so that the lock part exits the corresponding radial lock groove 153 and enters the arc-shaped chute 152, the backrest lock mechanism 15 is unlocked, and the backrest joint 11 can be rotated to adjust its backrest angle, and When the backrest button is released at the corresponding angular position, the two locking portions of the elastic locking member 151 are inserted into the corresponding radial locking grooves 153 under the action of the elastic member.

The detailed structure of the seat lock mechanism 16 is as follows:

As shown in Figures 3, 7, 9, and 10, in order to enhance the strength of the seat joint 12, and also to facilitate the assembly of the seat transmission member 161, the seat joint 12 is divided into plastic joints and reinforcing steel sheets, and the reinforcing steel sheet is located at the seat joint 12. on the other side, the two are relatively fixed.

The seat lock mechanism 16 includes a seat transmission member cavity 162 disposed on the plastic joint of the seat joint 12 and facing the radial control groove 154, a seat lock hole 163 disposed on the reinforcing steel sheet and opposite to the seat transmission member cavity 162, along a direction parallel to the seat. The seat transmission member 161, which is axially slidably arranged in the seat transmission member cavity 162 by the pocket-axis X11, also includes a seat elastic lock 164 axially slid on the base joint 13 parallel to the seat-pocket-axis X11, the so-called seat elastic The rear part of the lock 164 also has an elastic member that pushes it out, which also has a reset function. Both sides of the seat transmission member 161 have a control portion and a push-lock portion. As shown in FIG. 3 , when the seat lock mechanism 16 is in the locked position, the seat elastic lock 164 is stably inserted into the seat lock hole 163 under the action of the elastic member. Inside, the push-lock portion of the seat transmission member 161 is located in the seat transmission member cavity 162 . As shown in FIG. 8 , the control portion of the seat transmission member 161 extends into the radial control groove 154 .

Referring to FIGS. 2 , 3 and 8 , when the backrest lock mechanism 15 is in the locked position, the lock portion deviates from the seat transmission member 161 of the seat lock mechanism 16 . After the backrest locking mechanism 15 is unlocked, when the backrest frame 111 is folded to the bottom along the directions shown in FIGS. 2 , 4 and 6 , that is, when the backrest joint 11 is in the folded position, the locking portion on the elastic locking member 151 is still in the arc shape. Inside the chute 152 and facing the seat transmission member 161 of the seat lock mechanism 16, the backrest button is then controlled, and the elastic lock member 151 is further moved by the traction rope, so that the seat lock mechanism 16 is switched from the locked position to the unlocked position. 7, the control part is retracted into the seat transmission part cavity 162 under the extrusion of the elastic locking part 151, and the push-locking part extends to the other side and is inserted into the seat locking hole 163, making the seat elastic The lock 164 is withdrawn from the seat lock hole 163 against the elastic member. Therefore, the seat joint 12 and the backrest joint 11 are synchronously rotated and folded relative to the base joint 13 .

The specific structural embodiments among the base joint 13 , the seat joint 12 and the backrest joint 11 in this example have been described in detail above. However, in order to ensure the safety of infants sitting in the seat pockets, armrests are usually provided in front of the seat pockets to prevent infants and young children from falling down. In the prior art, some are detachable, but for ease of operation, this embodiment also Into the folding design, it folds with the folding of the seat pocket.

In this embodiment, an armrest joint 14 is rotatably connected to the seat joint 12 through the seat pocket two axes X12 , and an armrest frame 141 is fixed between the two armrest joints 14 . An armrest lock mechanism 17 is provided between the armrest joint 14 and the seat joint 12 .

As shown in FIGS. 5 , 9 and 10 , the armrest lock mechanism 17 includes an armrest lock 171 rotatably connected to the seat joint 12 in the middle around the seat pocket three axes X13 , an armrest unfolding slot 172 provided on the armrest joint 14 , and the seat pocket The axis line of the three axes X13 is arranged along the tangential direction of the first axis X11 of the seat pocket. The armrest lock 171 is located between the plastic joint and the reinforcing steel sheet. The elastic handrail transmission part 171b is movably inserted into the arc-shaped chute 152 .

The armrest lock 171a and the elastic armrest transmission portion 171b form a lever mechanism on both sides of the three-axis X13 of the seat pocket. When the armrest lock mechanism 17 is in the locked position, the elastic armrest transmission portion 171b extends into the arc-shaped chute 152, and the armrest lock head 171a is inserted into the armrest unfolding slot 172. When the armrest lock mechanism 17 is in the unlocked position, the elastic armrest transmission portion 171b exits the arc-shaped chute 152, and the armrest lock 171a is disengaged from the armrest unfolding slot 172.

As shown in FIG. 8 , the elastic handrail transmission portion 171b is located in the arc-shaped sliding groove 152 between all the radial locking grooves 153 and the radial control grooves 154 . Therefore, before the backrest joint 11 rotates to the bottom relative to the seat joint 12, when the lock portion on the elastic locking member 151 moves in the arc-shaped chute 152, it first passes through the elastic armrest transmission portion 171b, thereby pushing the elastic armrest transmission portion 171b out. The arc-shaped chute 152 converts the armrest lock mechanism 17 from the locked position to the unlocked position. As shown in FIGS. 4 and 5 , at this time, since the armrest joint 14 is fixed with the armrest frame 141 , the armrest frame 141 just blocks the front side of the backrest frame 111 . The armrest joint 14 and the armrest frame 141 are folded forward together with the backrest frame 111 , the design is ingenious, the operation is convenient for the user, and the safety of infants and young children is ensured. Of course, the elastic handrail transmission portion 171b has a ramp surface of the handrail transmission portion that collides with the corresponding lock portion and exits the arc-shaped chute 152 when the corresponding lock portion slides over, so as to facilitate the push control of the lock portion on the elastic lock member 151 .

Based on the above folding seat pockets of the stroller, this embodiment also provides a matching folding frame to form a children's folding stroller, which makes it more convenient to fold and unfold as a whole, and the volume of the whole vehicle is smaller after folding.

As shown in Figures 1, 11-13, the children's folding stroller also has a frame in an unfolded position and a folded position, and a plurality of wheel assemblies disposed at the bottom of the frame. The wheel assemblies are divided into front wheel assemblies 41 and rear wheel assemblies 42 according to the front and rear positions. The front wheel assembly 41 usually adopts a caster wheel. When the frame is in the unfolded position for children to ride on, each wheel assembly protrudes downward from the frame and can roll on the ground. When the frame is in the folded position, the folding seat pockets of the stroller are folded over the frame. Between the two side brackets of the cart, and each wheel assembly is respectively folded relative to the frame, and is also folded between the two side brackets, and is located under the folding seat pocket of the cart, and the volume is convenient for storage and transportation.

The detailed structure of the frame is as follows: the frame includes a base 3 , side brackets 2 formed on the base 3 and located on the left and right sides, and a cart folding seat pocket arranged between the left and right side brackets 2 . The base 3 may be a whole surrounding frame, but in order to save materials, in this embodiment, the base 3 is divided into three pieces. The base 3 includes a bottom front pedal 31 extending in the left-right direction at the front, and two bottom mounting portions 32 that are symmetrical to each other and located at the rear.

The side brackets 2 on each side include a bottom wheel frame 21 which is rotatably penetrated through one side of the bottom front pedal 31 and the corresponding bottom mounting portion 32 and takes its centerline as the turning axis X24, and is rotatably arranged on the bottom around the folding axis X21. The connecting rod 22 on the mounting part 32, the front support frame 23 pivotally connected with the lower end part and the side part of the bottom front pedal 31 around the folding two-axis X22, the push rod frame 25 and the sliding sleeve slidably inserted in the front support frame 23 The outer sliding sleeve 24 is arranged outside the front bracket 23 . The upper end of the connecting rod 22 is pivotally connected with the lower part of the outer sliding sleeve 24 around the folding three-axis X23. The first folding axis X21, the second folding axis X22, and the third folding axis X23 respectively extend along the left and right directions and are parallel. The length of the bottom wheel frame 21 is arranged in the front-rear direction, and the inversion axis X24 extends in the front-rear direction. A front wheel assembly 41 is installed at the front of the bottom wheel frame 21 , and a rear wheel assembly 42 is installed at the rear.

In this embodiment, the base joint 13 and the upper end of the front bracket 23 are detachably installed. Moreover, a push rod locking mechanism is arranged between the front support frame 23 and the push rod frame 25. The push rod locking mechanism of the push rod frame 25 sliding and locking is used for height adjustment and locking in the unfolded position. When the frame needs to be folded, the push rod is unlocked and locked. Shelf indents, etc. It is a common structure and will not be repeated.

A sliding sleeve locking mechanism is arranged between the front support frame 23 and the outer sliding sleeve 24, and the sliding sleeve locking mechanism is not a utility model. Hooks, etc., are automatically inserted into the lock holes of the front bracket 23 when unfolded. When the push rod frame slides down to a certain position, it pushes the spring pin or the spring hook, and pushes it out to unlock the sliding sleeve locking mechanism, and the frame can be folded. Of course, it is also possible to set the buttons to be controlled individually without borrowing a push rod rack.

The connecting rod 22 has a link swing section 22a, the bottom wheel frame 21 has a fixed upper limit portion 21a and a lower limit portion 21b, and the link swing section 22a is located between the upper limit portion 21a and the lower limit portion 21b. When the frame is converted from the unfolded position to the folded position, the outer sliding sleeve 24 slides down along the front support frame 23, so that the connecting rod 22 rotates around the folding axis X21 relative to the bottom mounting portion 32, and the connecting rod swing section 22a is tilted upward. Abutting on the upper position portion 21a and hooking it upwards, the bottom wheel frame 21 is rotated relative to the base 3 around the inversion axis X24, and the front and rear wheel assemblies are simultaneously retracted upwards.

The bottom wheel frame 21 and the base 3 are provided with a rotation limiting structure that limits the range of the rotation angle of the two, and the rotation limiting structure itself is not a utility model point. Open arc grooves, etc. The arc angle of the arc groove limits the rotation range of the bottom wheel frame 21 around the turning axis X24, such as 90°. When the frame is in the unfolded position, the bottom wheel frame 21 rotates downward relative to the base 3 to At this time, it is perpendicular to the horizontal plane, and at this time, the link swing section 22a presses against the lower limit portion 21b to lock the position of the bottom wheel frame 21 .

An open movable space is formed between the upper limit portion 21a and the lower limit portion 21b. The link swing section 22a is provided with a control seat transmission member which is convenient to cooperate with the upper position portion 21a and the lower limit portion 21b. The control seat transmission member is located in the movable position. within the space. The movement space can compensate for the movement distance of the connecting rod 22 .

The front wheel assembly 41 is disposed at the front end of the bottom wheel frame 21 , and the rear wheel assembly 42 is disposed at the rear end of the bottom wheel frame 21 . The bottom wheel frame 21 includes a bottom wheel shaft segment 211 , a rear wheel joint portion 213 fixed to the rear end of the bottom wheel shaft portion 211 , a front wheel joint portion 212 fixed to the front end of the bottom wheel shaft segment 211 , and the turning axis X24 is the bottom wheel shaft. The center line of the rod section 211, the rear wheel joint 213 is provided with the rear wheel assembly 42, the front wheel assembly 41 is disposed on the front wheel joint 212, the upper limit portion 21a and the lower limit portion 21b are both disposed on the rear wheel joint 213 , it is made of one-piece mold. Alternatively, in order to satisfy other folding principles of the frame, the upper limit portion 21a and the lower limit portion 21b can also be arranged on the front wheel joint portion 212, as long as there is a structure similar to the link pendulum 22a, with the frame folding process The angle change in the middle can be matched with the limiting portion 21a and the lower limiting portion 21b.

Each bottom wheel frame 21 can only be rotatably inserted in the corresponding bottom mounting portion 32 and the corresponding side portion of the bottom front pedal 31, and each bottom mounting portion 32 has a rotation plane for the connecting rod 22 to rotate, respectively. The axis X21 is located on the bottom mounting part 32 and is perpendicular to the rotation plane, the second folding axis X22 is located on the bottom front pedal 31, and the left and right side link swing sections 22a are fixedly connected through the cross section of the link rod 22 to form a rigid whole , When the frame is converted to the unfolded position or to the folded position, the left and right side link pendulum sections 22a synchronously control the left and right front wheel assemblies 41 and the left and right rear wheel assemblies 42 to extend downward or move toward the middle synchronously.

Folding process of children's folding stroller: The backrest lock mechanism is unlocked by controlling the movement of the elastic lock piece 151 through the backrest button and the traction rope, so that the backrest joint rotates relative to the seat joint, and the armrest lock mechanism is unlocked during the rotation process, thereby bringing the armrest frame with it. Fold forward together to the folded position, and then continue to control the elastic lock 151 to move further, so that the seat lock mechanism is unlocked, so that the back joint and the seat joint are synchronously folded relative to the base joint.

Then move the push rod frame downward, the sliding sleeve locking mechanism is unlocked, and the sliding sleeve also moves downward. During the downward movement of the sliding sleeve, the connecting rod is driven to rotate around the folding axis, and the swing section of the connecting rod is lifted up and pressed against the upper limit position. , and lift it upwards, so that the bottom wheel frame rotates relative to the base around the turning axis, and the wheel assembly is retracted upwards. When unfolding, lift up the push rod frame, front support frame, etc., and then pull up the push rod frame, the frame will be unfolded synchronously. Then, the seat pocket backrest can be pulled upwards and backwards to be in place, and each locking mechanism is naturally locked under the action of the elastic member.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those who are familiar with the technology to understand the content of the present invention and implement accordingly, and cannot limit the protection scope of the present invention with this. All equivalent changes or modifications made according to the spirit of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A folding seat pocket for a stroller, comprising a backrest joint (11), a seat joint (12) and a base joint (13) that are rotatably connected to each other through an axis (X11) of the seat pocket, characterized in that: A backrest locking mechanism (15) is arranged between the backrest joint (11) and the seat joint (12), and the backrest joint (11) has an unfolded position and a folded position relative to the seat joint (12), so The backrest locking mechanism (15) includes an elastic locking member (151) with a locking portion that is slidably or rotatably provided on the backrest joint (11), A seat lock mechanism (16) with a seat transmission member (161) is arranged between the seat joint (12) and the base joint (13), and the seat joint (12) is opposite to the base joint (13). ) has an expanded position and a collapsed position, When the backrest joint (11) is in the folded position, the locking portion faces the seat transmission member (161), and when the backrest joint (11) is in the unfolded position, the locking portion deviates from the Seat Drive (161), When the backrest joint (11) is in the deployed position, the elastic locking member (151) is controlled to move so that the backrest locking mechanism (15) is converted from the locking position to the unlocking position, when the backrest locking mechanism (15) is in the In the unlocked position, the backrest joint (11) rotates relative to the seat joint (12) to the folded position, and the elastic locking member (151) is controlled to move further so that the seat lock mechanism (16) is switched in the locked position to the unlocked position. 2 . The folding seat pocket of the stroller according to claim 1 , wherein the elastic locking member ( 151 ) is slidably disposed on the backrest joint ( 151 ) along the radial direction of the seat pocket one axis ( X11 ). 11), the backrest lock mechanism (15) further comprises an arc-shaped chute (152) opened on one side of the seat joint (12), distributed along the length of the arc-shaped chute (152) A plurality of radial lock grooves (153) communicated with it, a radial control groove (154) located at the end of the arc-shaped chute (152) and communicated with it, the radial lock groove ( 153), the radial control grooves (154) are respectively located on both sides of the arc-shaped chute (152), when the backrest lock mechanism (15) is in the locked position, the lock portion is located on one of the radial grooves (152). Towards the locking groove (153), when the backrest locking mechanism (15) is in the unlocking position, the locking portion is located in the arc-shaped sliding groove (152). 3. The folding seat pocket of the stroller according to claim 2, characterized in that: the seat lock mechanism (16) comprises a seat joint (12) provided on the seat joint (12) facing the radial control groove (154) A seat transmission member cavity (162), a seat lock hole (163) opened on the other side of the seat joint (12) and facing the seat transmission member cavity (162), movably arranged on the seat transmission member The seat transmission member (161) in the cavity (162), the seat elastic lock (164) movably arranged on the base joint (13), the seat transmission member (161) has control parts on both sides of the seat transmission member (161). push lock, When the seat lock mechanism (16) is in the locked position, the seat elastic lock (164) is inserted into the seat lock hole (163), and the push-lock portion is located in the seat transmission member cavity (162) Inside, the control part is located in the radial control groove (154), when the seat lock mechanism (16) is in the unlocked position, the control part is located in the seat transmission member cavity (162), the The push lock portion is located in the seat lock hole (163), and the seat elastic lock (164) exits the seat lock hole (163). 4. The folding seat pocket of a stroller according to claim 3, wherein the seat transmission member (161) is slidably arranged on the seat joint (12), and the seat elastic lock (164) is slidably arranged on the seat joint (12) On the base joint (13), the sliding direction of the seat transmission member (161) and the sliding direction of the seat elastic lock (164) are respectively parallel to the axis line of the seat pocket one axis (X11) direction. 5 . The folding seat pocket of the stroller according to claim 2 , wherein the seat joint ( 12 ) is rotatably connected with an armrest joint (14 ) through the seat pocket two axes (X12 ), and the armrest joint (14 ). ) and the seat joint (12) is provided with an armrest lock mechanism (17), and the armrest lock mechanism (17) includes an elastic armrest transmission part (171b) that is movably arranged in the arc-shaped chute (152). ), the elastic handrail transmission part (171b) is located in the arc-shaped chute segment between all the radial locking grooves (153) and the radial control groove (154), and the elastic handrail transmission part ( 171b) is provided with a ramp surface of the handrail transmission portion that interferes with the corresponding lock portion when it slides over and exits the arc-shaped chute (152), and a handrail frame (141) is fixed on the handrail joint (14), A backrest frame (111) is fixed on the backrest joint (11), and when the armrest locking mechanism (17) is in the unlocking position, the armrest frame (141) blocks the front side of the backrest frame (111). 6 . The folding seat pocket of the stroller according to claim 5 , wherein the armrest locking mechanism ( 17 ) comprises an armrest whose middle part is rotatably connected to the seat joint ( 12 ) around the seat pocket three axes (X13 ). 7 . The lock piece (171), the armrest deployment slot (172) provided on the armrest joint (14), the axis line of the seat pocket three axis (X13) is along the tangent of the seat pocket one axis (X11) Direction setting, one end of the armrest lock (171) is the armrest lock head (171a), and the other end of the armrest lock (171) is the elastic armrest transmission part (171b), when the armrest lock When the mechanism (17) is in the locked position, the elastic armrest transmission part (171b) extends into the arc-shaped chute (152), and the armrest lock head (171a) is inserted into the armrest unfolding slot (172) , when the armrest lock mechanism (17) is in the unlocked position, the elastic armrest transmission part (171b) exits the arc-shaped chute (152), and the armrest lock head (171a) is in contact with the armrest deployment slot (171b). 172) Phase detachment. 7. A children's folding stroller comprising the folding seat pockets of the stroller according to any one of claims 1 to 6, wherein the children's folding stroller comprises a frame having an unfolded position and a folded position, and is arranged on the A plurality of wheel assemblies at the bottom of the frame, the frame includes side brackets (2) located on the left and right sides, and the cart folding seat pocket (1) disposed between the left and right side brackets (2) , the base joints (13) are respectively connected with the corresponding side brackets (2) in a fixed or detachable manner. 8 . The children's folding stroller according to claim 7 , wherein the frame further comprises a base ( 3 ), and the side brackets ( 2 ) on both sides are respectively upwardly formed on the bottom of the base ( 3 ). 9 . On the left and right sides, the side brackets (2) on each side include a bottom wheel frame (21) that is sleeved with the base (3) and can take the center line extending in the front-rear direction of itself as a turning axis (X24), A connecting rod (22) provided on the base (3) is rotated around a folding axis (X21) extending left and right, the connecting rod (22) has a connecting rod swing section (22a), and the bottom wheel frame ( 21) A front wheel assembly (41) is provided at the front end, a rear wheel assembly (42) is provided at the rear end of the bottom wheel frame (21), and a fixed upper limit portion is provided on the bottom wheel frame (21). (21a), a lower limit portion (21b), the link swing segment (22a) is located between the upper limit portion (21a) and the lower limit portion (21b), when the frame moves to the unfolded position or During the transition to the folded position, the connecting rod (22) rotates around the folding axis (X21) relative to the base (3), and the connecting rod swinging section (22a) abuts against the lower limit portion ( 21b) or hooking on the upper limit portion (21a) to urge the bottom wheel frame (21) to rotate relative to the base (3). 9 . The folding stroller for children according to claim 8 , wherein the side brackets ( 2 ) on each side further comprise a lower end portion pivotally connected to the base ( 3 ) around two folding axes (X22). 10 . A front support frame (23), a push rod frame (25) and an outer sliding sleeve (24) respectively slidably arranged on the front support frame (23), and the upper end of the connecting rod (22) is connected to the outer sliding sleeve (24). The lower part of the sleeve (24) is pivotally connected around three folding axes (X23), the first folding axis (X21), the second folding axis (X22), and the three folding axes (X23) are arranged in parallel, and the folding The second axis (X22) is located in front of the first folding axis (X21), a push rod locking mechanism is arranged between the front support frame (23) and the push rod frame (25), and the front support frame (23) ) and the outer sliding sleeve (24) is provided with a sliding sleeve locking mechanism that is triggered and unlocked by the push rod frame (25) sliding down in place, and the base joints (13) are respectively connected with the corresponding front The brackets (23) are fixed or detachably connected. 10. The children's folding stroller according to claim 9, characterized in that: the bottom wheel frame (21) comprises a bottom wheel shaft rod segment (211), a bottom wheel shaft rod segment (211) fixed to the rear end of the a rear wheel joint part (213), a front wheel joint part (212) fixed to the front end of the bottom wheel shaft segment (211), the front wheel assembly (41) is arranged on the front wheel joint part (212) , the rear wheel assembly (42) is arranged on the rear wheel joint portion (213), and the upper position portion (21a) is arranged on the bottom wheel shaft segment (211) or the rear wheel joint portion (213) ), the lower limit part (21b) is arranged on the rear wheel joint part (213).

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