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 seat pocket of shallow and folding shallow of children

Technical Field

The utility model belongs to children's articles for use field, concretely relates to folding seat pocket of shallow and folding shallow of children.

Background

A foldable stroller for children generally comprises a frame capable of being unfolded and folded, a plurality of wheel assemblies disposed at the bottom of the frame, and a seat pocket disposed between left and right side brackets of the frame.

In the prior art, most seat pockets cannot be folded, so that the volume of the folded stroller is still large. The volume is miniaturized after being folded, the folding operation is convenient, and the folding mechanism is always a common pursuit target in the industry.

In order to further reduce the volume of the folded child folding stroller, a seat bag folding scheme is provided in the document with the patent publication number CN 214451257U. The folding seat pocket of the trolley comprises a base joint and a backrest joint, wherein the backrest joint is rotatably connected with the base joint through a central shaft, and a backrest positioning mechanism is arranged between the base joint and the backrest joint. The auxiliary bearing joint is used for installing functional components such as a seat pocket and the like, the auxiliary bearing joint is connected to the base joint in a rotating mode through the central shaft, and an unfolding positioning mechanism is arranged between the base joint and the auxiliary bearing joint. When the seat pocket needs to be folded, the backrest positioning mechanism is controlled to be located at the unlocking position, and the backrest joint rotates relative to the base joint and is matched with the inner groove, the pin and other parts, so that the unfolding positioning mechanism is controlled to be switched from the locking position to the unlocking position, and the backrest joint, the auxiliary bearing joint and the base joint are folded.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a folding seat pocket of shallow.

In order to solve the technical problem, the utility model discloses a technical scheme be: a folding seat pocket of a trolley comprises a backrest joint, a seat joint and a base joint which are sequentially connected in an axial rotation mode through the seat pocket, a backrest lock mechanism is arranged between the backrest joint and the seat joint and is opposite to the backrest joint, the seat joint is provided with an unfolding position and a folding position, the backrest lock mechanism comprises an elastic lock piece which is arranged on the backrest joint in a sliding or rotating mode and is provided with a lock part, a seat lock mechanism with a seat transmission piece is arranged between the seat joint and the base joint, the seat joint is opposite to the base joint and is provided with an unfolding position and a folding position, when the backrest joint is located under the folding position, the lock part faces the seat transmission piece, when the backrest joint is located under the unfolding position, the lock part deviates from the seat transmission piece, when the backrest joint is located under the unfolding position, control the elasticity latch fitting removes and makes back latch fitting convert to the unblock position in the latched position, works as under back latch fitting is in the unblock position, the back joint is relative under the seat joint rotates to the position of folding up, control the further removal of elasticity latch fitting makes seat latch fitting convert to the unblock position in the latched position.

In some embodiments, the elasticity latch fitting along the radial sliding ground of seat pocket axle sets up on the back joint, back latch mechanism is still including seting up arc spout on the seat joint lateral part, edge a plurality of radial locked grooves that the length direction of arc spout distributes and is linked together with it, one is located the radial control groove that arc spout tip and is linked together with it, radial locked groove the radial control groove is located respectively the both sides of arc spout, works as back latch mechanism is located under the lock position, the lock position is located one the radial locked groove is worked as back latch mechanism is located under the unblock position, the lock position is located in the arc spout.

In some embodiments, the seat lock mechanism comprises a seat transmission member cavity arranged on the seat joint and opposite to the radial control groove, a seat lock hole arranged on the other side part of the seat joint and opposite to the seat transmission member cavity, the seat transmission member movably arranged in the seat transmission member cavity, and a seat elastic lock movably arranged on the base joint, wherein both side parts of the seat transmission member are provided with a control part and a push lock part, when the seat lock mechanism is under the locking position, the seat elastic lock is inserted in the seat lock hole, the push lock portion is located within the seat drive member cavity, the control portion is located within the radial control slot, when the seat lock mechanism is in an unlocked position, the control portion is located within the seat drive member cavity, the push lock part is positioned in the seat lock hole, and the seat elastic lock is withdrawn from the seat lock hole.

In some embodiments, the seat driving member is slidably disposed on a seat joint, the seat elastic lock is slidably disposed on the base joint, and a sliding direction of the seat driving member and a sliding direction of the seat elastic lock are respectively parallel to an axial line direction of an axis of the seat pocket.

In some embodiments, be connected with the handrail joint through seat pocket biaxial rotation on the seat joint, the handrail joint with be provided with handrail lock mechanism between the seat joint, handrail lock mechanism establishes including the activity bullet elasticity handrail transmission portion in the arc spout, elasticity handrail transmission portion is located all radial locked groove with in the arc spout section between the radial control groove, and have on the elasticity handrail transmission portion and thus push against it when corresponding lock portion slides and withdraw from handrail transmission portion slope in the arc spout, be fixed with the handrail frame on the handrail joint, be fixed with the back frame on the back joint, work as the handrail lock mechanism is under the position of unblock, the handrail frame keeps off back frame front side.

In some embodiments, the armrest lock mechanism includes an armrest lock member rotatably connected to the seat joint around a seat pocket three axis, and an armrest expansion slot disposed on the armrest joint, wherein an axial line of the seat pocket three axis is disposed along a tangential direction of a seat pocket axis, one end of the armrest lock member is an armrest lock head, the other end of the armrest lock member is the elastic armrest transmission portion, when the armrest lock mechanism is in a lock position, the elastic armrest transmission portion extends into the arc-shaped sliding slot, the armrest lock head is inserted into the armrest expansion slot, and when the armrest lock mechanism is in an unlock position, the elastic armrest transmission portion exits from the arc-shaped sliding slot, and the armrest lock head is separated from the armrest expansion slot.

The to-be-solved technical problem of the utility model is to provide a children's folding shallow.

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides an above-mentioned arbitrary one folding shallow of children of folding seat pocket embodiment of shallow, folding shallow of children including have expand position and folding position the frame, set up in a plurality of wheel subassemblies of frame bottom, the frame is including the collateral branch frame that is located left and right sides portion, set up in about between the collateral branch frame folding seat pocket of shallow, the base joint respectively with corresponding the collateral branch frame is fixed mutually or can be dismantled mutually and connect.

In some embodiments, the frame further comprises a base, the side brackets at two sides are respectively formed upwards at the left side part and the right side part of the base, the side bracket at each side comprises a bottom wheel frame which is sleeved with the base and can take a central line extending in the front-back direction of the bottom wheel frame as a turnover shaft, and a connecting rod which is rotatably arranged on the base around a folding shaft extending in the left-right direction, the connecting rod is provided with a connecting rod swinging section, the front end part of the chassis frame is provided with a front wheel component, the rear end part of the chassis frame is provided with a rear wheel component, the bottom wheel frame is provided with a fixed upper limit part and a fixed lower limit part, the connecting rod swinging section is positioned between the upper limit part and the lower limit part, when the frame is converted to the unfolding position or the folding position, the connecting rod rotates around the folding shaft relative to the base, the connecting rod swinging section abuts against the lower limiting part or is hooked on the upper limiting part to enable the base wheel frame to rotate relative to the base.

In some embodiments, the side bracket of each side further includes a front support frame with a lower end connected with the base around a folding two-axis pivot, a push rod frame and an outer sliding sleeve, the push rod frame and the outer sliding sleeve are respectively slidably arranged on the front support frame, the upper end of the connecting rod is connected with the lower part of the outer sliding sleeve around a folding three-axis pivot, the folding one axis, the folding two axis and the folding three axis are arranged in parallel, the folding two axis is positioned in front of the folding one axis, a push rod locking mechanism is arranged between the front support frame and the push rod frame, a sliding sleeve locking mechanism which is unlocked by the push rod frame sliding downwards in place is arranged between the front support frame and the outer sliding sleeve, and the base joint is respectively fixed with the corresponding front support frame or detachably connected with the front support frame.

In some embodiments, the bottom wheel frame includes a bottom wheel axle rod segment, a rear wheel joint portion fixed to a rear end portion of the bottom wheel axle rod segment, and a front wheel joint portion fixed to a front end portion of the bottom wheel axle rod segment, the front wheel assembly is disposed on the front wheel joint portion, the rear wheel assembly is disposed on the rear wheel joint portion, the upper limit portion is disposed on an upper portion of the bottom wheel axle rod segment or the rear wheel joint portion, and the lower limit portion is disposed on the rear wheel joint portion.

The scope of the present invention is not limited to the technical solutions formed by specific combinations of the above technical features, and other technical solutions formed by arbitrary combinations of the above technical features or equivalent features should be covered. For example, the above features and the technical features (but not limited to) having similar functions disclosed in the present application are mutually replaced to form the technical solution.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the utility model provides a new folding concept of a folding seat pocket of a cart and a folding cart for children, the folding seat pocket of the cart comprises a backrest joint, a seat joint and a base joint which are coaxially pivoted, a backrest lock mechanism is arranged between the backrest joint and the seat joint, the seat lock mechanism is arranged between the seat joint and the base joint, and the elastic lock piece is controlled to move so as to realize the unlocking of the backrest lock mechanism, so that the backrest joint can adjust the angle of the backrest joint or be directly folded relative to the seat joint, when the backrest joint is positioned at the folding position relative to the seat joint, the elastic locking piece is continuously controlled to move at the moment, so that the seat locking mechanism is unlocked, therefore, the backrest joint and the seat joint are synchronously opposite to the base joint for folding, the operation is convenient, the volume is small after folding, the occupied space is small, the storage and the carrying are convenient, and the transportation cost is reduced.

Drawings

FIG. 1 is a schematic perspective view of a child folding stroller with a seat pocket in an unfolded position;

FIG. 2 is a perspective view of the seat pocket in an expanded position;

FIG. 3 is a partial cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a side view of the seat pocket in the process of being converted from the unfolded position to the folded position;

FIG. 5 is a partial cross-sectional view taken along line B-B of FIG. 4;

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

FIG. 7 is a partial cross-sectional view taken along line C-C of FIG. 6;

FIG. 8 is an exploded view of the structure between the back joint and the seat joint;

FIG. 9 is an exploded view of the structure between the seat joint and the armrest joint;

FIG. 10 is an exploded view of the backrest joint, seat joint, base joint and armrest joint of the seat pocket;

FIG. 11 is a schematic perspective view of the stroller with the seat pocket in the folded position;

FIG. 12 is a perspective view of the foldable stroller with the seat bag removed during the folding process;

FIG. 13 is a schematic perspective view of the foldable stroller in a folded position with the seat pocket removed;

wherein 1, the folding seat pocket of the cart; 11. a backrest joint; 111. a backrest frame; 12. a seat joint; 121. a seat frame; 13. a base joint; 14. an armrest joint; 141. a handrail frame; 15. a backrest lock mechanism; 151. an elastic locking member; 152. an arc-shaped chute; 153. a radial locking groove; 154. a radial control groove; 16. a seat lock mechanism; 161. a seat transmission member; 162. 163, seat lock hole, 164, seat spring lock; 17. an armrest lock mechanism; 171. a handrail locking member; 171a, an armrest lock; 171b, an elastic handrail transmission part; 172. an armrest deployment chute; x11, a seat pocket shaft; x12, seat pocket biaxial; x13, three axes of a seat bag; 2. a side bracket; 21. a chassis frame; 21a, an upper limit part; 21b, a lower limiting part; 211. a bottom axle stem section; 212. a front wheel joint part; 213. a rear wheel joint part; 22. a connecting rod; 22a, a connecting rod swing section; 23. a front support frame; 24. an outer sliding sleeve; 25. a push rod frame; x21, fold axis; x22, folding biaxial; x23, folding triaxial; x24, flip axis; 3. a chassis; 31. a bottom front pedal; 32. a bottom mounting portion; 41. a front wheel assembly; 42. a rear wheel assembly.

Detailed Description

As shown in the figures, the folding seat pocket 1 of the stroller, which can be fixedly installed or detachably installed on the folding stroller of the child, can be directly folded on the stroller and then folded along with the frame of the folding stroller of the child, thereby reducing the volume after folding.

As shown in fig. 2-10, the folding seat pocket 1 of the stroller comprises left and right side joint mechanisms, respectively comprising a base joint 13, a seat joint 12 and a backrest joint 11 which are sequentially and pivotally connected through a seat pocket axis X11. The backrest frame 111 is fixed on the backrest joints 11 at both sides, and the seat frame 121 is fixed between the two seat joints 12.

A backrest lock mechanism 15 is arranged between the backrest joint 11 and the seat joint 12, and after the backrest lock mechanism 15 is unlocked, the backrest joint 11 can rotate relative to the seat joint 12 and can be switched between an unfolding position and a folding position. A seat lock mechanism 16 is arranged between the seat joint 12 and the base joint 13, and after the seat lock mechanism 16 is unlocked, the backrest joint 11 is switched between the unfolding position and the folding position along with the seat joint 12 relative to the base joint 13.

The backrest lock mechanism 15 and the seat lock mechanism 16 are unlocked in sequence and controlled to be unlocked by the same unlocking component. After the unlocking component controls the backrest lock mechanism 15 to unlock, the backrest joint 11 relatively rotates to the folding position relative to the seat joint 12, namely the position between the two joints is changed by rotating relative to the seat pocket axis X11, and the seat lock mechanism 16 is displayed in front of the unlocking component and can be controlled by the unlocking component. As for the unlocking member, as a power source member, whether rotating or sliding is theoretically possible as long as the specific mechanism operation of the back lock mechanism 15 and the seat lock mechanism 16 can be appropriately matched with the unlocking member.

In the detailed structure of the backrest lock mechanism 15 of the present embodiment, as shown in fig. 7, 8 and 10, the unlocking member is an elastic lock 151 slidably provided in the backrest joint 11. The elastic locking unit 151 is a return spring that is installed in cooperation and controls the return of the elastic locking unit when the elastic locking unit is moved and released.

As shown in fig. 8, the backrest lock mechanism 15 is configured in detail as follows: the seat comprises an elastic locking piece 151 arranged on the backrest joint 11 in a radial sliding manner along a seat pocket axis X11, namely the unlocking component, and further comprises a structure which is arranged on one side part of the seat joint 12 and is matched with the elastic locking piece 151 in a matching manner, namely an arc-shaped sliding groove 152, a plurality of radial locking grooves 153 distributed along the length direction of the arc-shaped sliding groove 152 and communicated with the arc-shaped sliding groove 152, a radial control groove 154 positioned at one end part of the arc-shaped sliding groove 152 and also communicated with the arc-shaped sliding groove in the radial direction, and the plurality of radial locking grooves 153 are close to the other end part of the arc-shaped sliding groove 152. The radial locking groove 153 and the radial control groove 154 are respectively located on two 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 outward.

In this embodiment, the two ends of the elastic locking member 151 are provided with locking portions, and the arc-shaped sliding groove 152, the radial locking groove 153 and the radial control groove 154, which are engaged with the locking portions, of the corresponding seat knuckle 12 are also provided in two sets. Two ends are controlled, and the contact is larger.

In order to control the movement of the elastic locking member 151, a backrest button is usually disposed on the backrest frame 111, the backrest button is connected to the elastic locking member 151 through a pulling rope, so as to control the movement, and when the elastic locking member 151 is released, the elastic locking member 151 is reset under the action of a spring, which is not described in detail in the conventional structure.

Referring to fig. 2, 3 and 8, when the backrest joint 11 is in the unfolded position and the backrest lock 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 elastic locking piece 151 is controlled to move through the backrest button and the traction rope, the locking parts are enabled to exit from the corresponding radial locking grooves 153 to enter the arc-shaped sliding grooves 152, the backrest locking mechanism 15 is unlocked, the backrest joint 11 can be rotated to adjust the backrest angle of the backrest, the backrest button is released at the corresponding angle position, and the two locking parts of the elastic locking piece 151 are inserted into the corresponding radial locking grooves 153 under the action of the elastic piece.

The seat lock mechanism 16 is detailed as follows:

as shown in fig. 3, 7, 9 and 10, in order to reinforce the strength of the seat joint 12 and to facilitate the assembly of the seat transmission member 161, the seat joint 12 is divided into a plastic joint and a reinforcing steel sheet, and the reinforcing steel sheet is located at the other side portion of the seat joint 12 and fixed to each other.

The seat lock mechanism 16 includes a seat driver cavity 162 disposed in the plastic knuckle of the seat knuckle 12 opposite the radial control slot 154, a seat lock hole 163 disposed in the reinforced steel sheet opposite the seat driver cavity 162, a seat driver 161 axially slidably disposed in the seat driver cavity 162 parallel to a seat pocket axis X11, and a seat latch 164 axially slidably disposed in the base knuckle 13 parallel to a seat pocket axis X11, the so-called seat latch 164 also having a rear portion with a spring that pushes it outward, also providing it with a reset function. The seat transmission member 161 has a control portion and a lock pushing portion on both side portions thereof, and as shown in fig. 3, when the seat lock mechanism 16 is in the lock position, the seat elastic lock 164 is stably inserted into the seat lock hole 163 by the elastic member, and the lock pushing portion of the seat transmission member 161 is located in the seat transmission member cavity 162, and as shown in fig. 8, the control portion of the seat transmission member 161 extends into the radial control groove 154.

Referring to fig. 2, 3, and 8, when the back lock mechanism 15 is in the locked position, the lock is offset from the seat driver 161 of the seat lock mechanism 16. And after the backrest lock mechanism 15 is unlocked, when the backrest frame 111 is folded to the bottom along the directions shown in fig. 2, 4 and 6, that is, the backrest joint 11 is in the folded position, the lock part on the elastic lock part 151 is still located in the arc-shaped sliding groove 152 and faces the seat transmission part 161 of the seat lock mechanism 16, at this time, the backrest button is controlled, the elastic lock part 151 is further moved through the traction rope, so that the seat lock mechanism 16 is switched to the unlocked position at the locked position, as shown in fig. 7, the control part retracts into the seat transmission part cavity 162 under the extrusion of the elastic lock part 151, the push lock part extends out in the other side direction and is inserted into the seat lock hole 163, and the seat elastic lock 164 overcomes the elastic part to exit the seat lock hole 163. So that the seat joint 12 is rotationally folded with respect to the base joint 13 in synchronization with the backrest joint 11.

The specific structural embodiments among the base joint 13, the seat joint 12 and the backrest joint 11 in this example are described in detail above. However, in order to ensure the safety of the infant seated in the seat bag, the armrest is usually disposed in front of the seat bag to prevent the infant from falling down.

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

As shown in fig. 5, 9 and 10, the armrest lock mechanism 17 includes an armrest lock member 171 whose middle portion is rotatably connected to the seat joint 12 around a seat pocket three axis X13, and an armrest expansion slot 172 disposed on the armrest joint 14, wherein an axial line of the seat pocket three axis X13 is disposed along a tangential direction of the seat pocket one axis X11, the armrest lock member 171 is disposed between the plastic joint and the reinforced steel sheet, one end portion thereof is an armrest lock head 171a, the other end portion of the armrest lock member 171 is an elastic armrest transmission portion 171b, and the elastic armrest transmission portion 171b is movably inserted in the arc-shaped sliding slot 152.

The armrest lock head 171a and the elastic armrest transmission part 171b form a lever mechanism on both sides of the seat pocket triaxial axis X13. When the armrest lock mechanism 17 is in the locked position, the elastic armrest transmission part 171b extends into the arc-shaped sliding groove 152, the armrest locking head 171a is inserted into the armrest expansion groove 172, and when the armrest lock mechanism 17 is in the unlocked position, the elastic armrest transmission part 171b exits the arc-shaped sliding groove 152, and the armrest locking head 171a is disengaged from the armrest expansion groove 172.

As shown in fig. 8, the elastic handrail driving portion 171b is located in the arc-shaped sliding groove 152 section 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 of the elastic locking member 151 moves in the arc-shaped sliding groove 152, the elastic armrest transmission portion 171b is pushed out of the arc-shaped sliding groove 152 by passing through the elastic armrest transmission portion 171b, so that the armrest locking mechanism 17 is switched from the locking position to the unlocking position. As shown in fig. 4 and 5, at this time, since the armrest frame 141 is fixed to the armrest joint 14, the armrest frame 141 is just stopped at the front side of the backrest frame 111. The armrest joint 14 and the armrest frame 141 are folded forward along with the backrest frame 111, so that the design is ingenious, the operation of a user is convenient, and the safety of an infant in use is ensured. Of course, the elastic armrest transmission part 171b has an armrest transmission part slope surface which is abutted against the lock part when the corresponding lock part slides, so as to exit from the arc-shaped sliding groove 152, thereby facilitating the push control of the lock part on the elastic lock part 151.

Based on the folding seat pocket of above shallow, this embodiment still provides the folding frame supporting with it simultaneously, the shallow is folded to children of constitution for it is more convenient that whole cooperation is folding to be expanded, and whole car volume after folding is littleer.

As shown in fig. 1, 11-13, the stroller also has a frame in an unfolded position and a folded position, and a plurality of wheel assemblies disposed on the bottom of the frame. The wheel assembly is divided into a front wheel assembly 41 and a rear wheel assembly 42 according to the front and rear positions. The front wheel assembly 41 is generally a universal wheel. When the frame is in the folding position, the folding seat pocket of the stroller is folded between the side brackets at the two sides of the frame, and each wheel component is folded relative to the frame, is also folded between the side brackets at the two sides and is positioned below the folding seat pocket of the stroller, so that the size is convenient for storage and transportation.

The detailed structure of the frame is as follows: the frame comprises a base 3, side brackets 2 which are formed on the base 3 and are positioned at the left side and the right side, and a folding seat pocket of the trolley which is arranged between the left side bracket 2 and the right side bracket 2. The base 3 may be a whole enclosure, but in order to save materials, in this embodiment, the base 3 is divided into three parts. The base 3 includes a bottom front step 31 extending in the left-right direction at the front, and two bottom mounting portions 32 which are bilaterally symmetrical and located at the rear.

The side bracket 2 on each side comprises a bottom wheel frame 21 which is rotatably arranged in one side part of the bottom front pedal 31 and the corresponding bottom mounting part 32 and takes the center line of the side frame as a turning axis X24, a connecting rod 22 which is rotatably arranged on the bottom mounting part 32 around a folding axis X21, a front support frame 23 of which the lower end part is pivotally connected with one side part of the bottom front pedal 31 around a folding axis X22, a push rod frame 25 which is slidably inserted in the front support frame 23 and an outer sliding sleeve 24 which is slidably sleeved outside the front support frame 23. The upper end of the connecting rod 22 is pivotally connected to the lower part of the outer slide 24 about a folding three axis X23. The folding axis X21, the folding axis X22, and the folding axis X23 extend in the left-right direction and are parallel to each other. The length of the bottom wheel frame 21 is arranged along the front-back direction, the overturning shaft X24 extends along the front-back direction, and the axial lead of the folding shaft X21 is spatially vertical to the axial lead of the overturning shaft X24. The front part of the chassis frame 21 is provided with a front wheel assembly 41, and the rear part is provided with a rear wheel assembly 42.

In this embodiment, the base joint 13 and the upper end of the front bracket 23 are detachably mounted. And a push rod locking mechanism is arranged between the front support frame 23 and the push rod frame 25, the push rod locking mechanism locked by the push rod frame 25 in a sliding manner is used for height adjustment and locking in an unfolded position, and the push rod frame is unlocked to retract when the frame needs to be folded. Is a common structure and is not described in detail.

Be provided with sliding sleeve locking mechanical system between preceding strut 23 and the outer sliding sleeve 24, sliding sleeve locking mechanical system is also not practical novel point, and locking mechanical system between the slider is all applicable, if set up bullet round pin or bullet hook etc. on outer sliding sleeve 24, automatic bullet is inserted in preceding strut 23 keyhole when expanding. When the push rod frame slides downwards to a certain position, the elastic pin or the elastic hook is pushed to push the push rod frame outwards, so that the sliding sleeve locking mechanism can be unlocked, and the bicycle frame can be folded. Of course, the push button can be arranged to be controlled independently without the push rod frame.

The link 22 has a link swing section 22a, the wheel base 21 has an upper stopper 21a and a lower stopper 21b, and the link swing section 22a is located between the upper stopper 21a and the lower stopper 21 b. When the frame is converted from the unfolding position to the folding position, the outer sliding sleeve 24 slides downwards along the front supporting frame 23, so that the connecting rod 22 rotates around the folding axis X21 relative to the bottom mounting part 32, the connecting rod swinging section 22a tilts upwards and abuts against the upper limiting part 21a, the connecting rod swinging section hooks upwards, the bottom wheel frame 21 rotates around the overturning axis X24 relative to the base 3, and the front wheel assembly and the rear wheel assembly are retracted upwards at the same time.

Be provided with the rotation limited structure of restriction both turned angle scopes between base wheel frame 21 and the base 3, it is not the utility model point to rotate limited structure itself, if set up the locating pin on base wheel frame 21, set up the arc wall etc. on the footboard 31 lateral part before the end, the arc angle of arc wall restricts base wheel frame 21 around trip shaft X24 pivoted turned range, if 90, under the frame is located the exhibition position, base wheel frame 21 rotates to extreme position downwards relative to base 3, and relative horizontal plane is perpendicular this moment, and link pendulum section 22a supports to press just to lock the position of base wheel frame 21 on lower extreme position 21b this moment.

An open type movable space is formed between the upper limit portion 21a and the lower limit portion 21b, and the connecting rod swing section 22a is provided with a control seat transmission member which is conveniently matched with the upper limit portion 21a and the lower limit portion 21b and is positioned in the movable space. The movement space can compensate for the movement distance of the link 22.

The front wheel assembly 41 is provided at the front end of the wheel frame 21, and the rear wheel assembly 42 is provided at the rear end of the wheel frame 21. The bottom wheel frame 21 comprises a bottom wheel shaft rod section 211, a rear wheel joint part 213 fixed at the rear end part of the bottom wheel shaft rod section 211 and a front wheel joint part 212 fixed at the front end part of the bottom wheel shaft rod section 211, wherein the overturning shaft X24 is the central line of the bottom wheel shaft rod section 211, a rear wheel assembly 42 is arranged on the rear wheel joint part 213, the front wheel assembly 41 is arranged on the front wheel joint part 212, and the upper limiting part 21a and the lower limiting part 21b are both arranged on the rear wheel joint part 213 and are manufactured by opening the mold integrally. Alternatively, in order to satisfy other folding principles of the frame, the upper limit portion 21a and the lower limit portion 21b may be provided on the front wheel joint portion 212, as long as the structure conforms to the similar link swing segment 22a, and the upper limit portion 21a and the lower limit portion 21b are matched with the angle change during the frame folding process.

Each bottom wheel frame 21 can only be inserted in the corresponding bottom mounting part 32 and the corresponding side part of the bottom front pedal 31 in a rotating way, each bottom mounting part 32 is respectively provided with a rotating plane for the connecting rod 22 to rotate, a folding axis X21 is positioned on the bottom mounting part 32 and is vertical to the rotating plane, a folding axis X22 is positioned on the bottom front pedal 31, the left side connecting rod swinging section 22a and the right side connecting rod swinging section 22a are fixedly connected through the transverse section of the connecting rod 22 to form a rigid whole, and in the process of converting the frame to the unfolding position or the folding position, the left side connecting rod swinging section 22a and the right side connecting rod swinging section 22a synchronously control the left front wheel assembly 41 and the right front wheel assembly 42 to synchronously extend downwards or synchronously approach towards the middle.

Folding process of the folding stroller for children: thereby through back button, haulage rope control elasticity latch fitting 151 removal realization back latch mechanism unblock for the relative seat joint of back joint rotates, and in the rotation in-process unblock handrail latch mechanism by the way, thereby take the handrail frame together fold forward to folding position down, resume control elasticity latch fitting 151 further removal this moment, just make seat latch mechanism unblock, thereby the back joint is with the seat joint is synchronous relative base joint folding.

And then the push rod frame moves downwards, the sliding sleeve locking mechanism is unlocked, the sliding sleeve also moves downwards, the sliding sleeve drives the connecting rod to rotate around the folding shaft in the downward movement process, the swinging section of the connecting rod tilts upwards to abut against the upper limiting part and hooks the swinging section upwards, the bottom wheel frame rotates around the turnover shaft relative to the base, and the wheel assembly is folded upwards. When the frame is unfolded, the push rod frame, the front support frame and the like are lifted upwards, and then the push rod frame is pulled upwards, so that the frame is synchronously unfolded. And then the seat pocket backrest frame is pulled upwards and backwards to a proper position, and under the action of the elastic piece, each locking mechanism is locked naturally.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims (10)

1. The utility model provides a folding seat pocket of shallow, includes that loop through seat pocket one axle (X11) looks pivoted joint of backrest (11), seat joint (12) and base joint (13), its characterized in that:

the backrest joint (11) and the seat joint (12) are provided with a backrest lock mechanism (15) therebetween, the backrest joint (11) is opposite to the seat joint (12) and has an unfolding position and a folding position, the backrest lock mechanism (15) comprises an elastic lock piece (151) which is arranged on the backrest joint (11) in a sliding or rotating manner and has a lock part,

a seat lock mechanism (16) with a seat transmission piece (161) is arranged between the seat joint (12) and the base joint (13), the seat joint (12) has an unfolding position and a folding position relative to the base joint (13),

the lock part is arranged to face the seat transmission member (161) when the backrest joint (11) is in the folded position, and the lock part is arranged to be offset from the seat transmission member (161) when the backrest joint (11) is in the unfolded position,

when back joint (11) are under the expanded position, control elasticity latch fitting (151) remove make back lock mechanism (15) convert to the unblock position in the latched position, when back lock mechanism (15) are under the unblock position, back joint (11) are relative under seat joint (12) rotate to the position of folding up, control elasticity latch fitting (151) further remove make seat lock mechanism (16) convert to the unblock position in the latched position.

2. The stroller folding seat pocket of claim 1, characterized in that: elasticity latch fitting (151) are along the radial sliding ground setting of seat pocket one axle (X11) is in on back joint (11), back latch mechanism (15) are still including seting up arc spout (152) on seat joint (12) one side portion, edge a plurality of radial locked groove (153) that the length direction of arc spout (152) distributes and is linked together with it, one is located arc spout (152) tip and radial control groove (154) that are linked together with it, radial locked groove (153), radial control groove (154) are located respectively the both sides of arc spout (152), work as back latch mechanism (15) are located under the lock position, the lock position is located one radial locked groove (153), work as back latch mechanism (15) are located under the unblock position, the lock position is located in arc spout (152).

3. The stroller folding seat pocket of claim 2, characterized in that: the seat lock mechanism (16) comprises a seat transmission member cavity (162) which is arranged on the seat joint (12) and faces the radial control groove (154), a seat lock hole (163) which is arranged on the other side part of the seat joint (12) and faces the seat transmission member cavity (162), a seat transmission member (161) which is movably arranged in the seat transmission member cavity (162) and a seat elastic lock (164) which is movably arranged on the base joint (13), wherein both side parts of the seat transmission member (161) are provided with a control part and a push lock part,

work as under seat lock mechanism (16) is in the lock position, seat elastic lock (164) spring is inserted in seat lockhole (163), the lock pushing part is located in seat driving medium chamber (162), the control position is in radial control groove (154), work as under seat lock mechanism (16) is in the position of unblocking, the control position is in seat driving medium chamber (162), the lock pushing part is located in seat lockhole (163), seat elastic lock (164) withdraw from seat lockhole (163).

4. The stroller folding seat pocket of claim 3, characterized in that: the seat transmission piece (161) is arranged on a seat joint (12) in a sliding mode, the seat elastic lock (164) is arranged on the base joint (13) in a sliding mode, and the sliding direction of the seat transmission piece (161) and the sliding direction of the seat elastic lock (164) are respectively parallel to the axis line direction of a seat pocket axis (X11).

5. The stroller folding seat pocket of claim 2, characterized in that: seat joint (12) go up and are connected with handrail joint (14) through seat pocket biaxial (X12) rotation, handrail joint (14) with be provided with handrail latch mechanism (17) between seat joint (12), handrail latch mechanism (17) are established including the activity bullet elasticity handrail transmission portion (171 b) in arc spout (152), elasticity handrail transmission portion (171 b) are located all radial locked groove (153) with in the arc spout section between radial control groove (154), and thereby have on elasticity handrail transmission portion (171 b) and inconsistent therewith withdraw from when corresponding lock portion slides handrail transmission portion slope in arc spout (152), be fixed with handrail frame (141) on handrail joint (14), be fixed with back frame latch mechanism (111) on back joint (11), work as handrail (17) are under the unlocking position, the armrest frame (141) is blocked at the front side of the backrest frame (111).

6. The stroller folding seat pocket of claim 5, characterized in that: the armrest lock mechanism (17) comprises an armrest lock piece (171) which is connected to the seat joint (12) in a rotating mode around a seat pocket three axis (X13), an armrest expansion slot (172) which is formed in the armrest joint (14), the axis of the seat pocket three axis (X13) is arranged along the tangential direction of the seat pocket one axis (X11), one end of the armrest lock piece (171) is an armrest lock head (171 a), the other end of the armrest lock piece (171) is an elastic armrest transmission part (171 b), when the armrest lock mechanism (17) is located at a locking position, the elastic armrest transmission part (171 b) extends into the arc-shaped sliding slot (152), the armrest lock head (171 a) is inserted into the armrest expansion slot (172), and when the armrest lock mechanism (17) is located at an unlocking position, the armrest transmission part (171 b) exits from the arc-shaped sliding slot (152), the armrest locking head (171 a) is disengaged from the armrest expansion slot (172).

7. A child folding stroller comprising the folding seat pocket of the stroller of any of claims 1-6, characterized in that: folding shallow of children including have the frame of expansion position and folding position, set up in a plurality of wheel subassemblies of frame bottom, the frame is including collateral branch frame (2) that are located left and right sides portion, set up in controlling between collateral branch frame (2) folding seat pocket (1) of shallow, base joint (13) respectively with corresponding collateral branch frame (2) are fixed mutually or can be dismantled mutually and connect.

8. The stroller of claim 7, wherein: the bicycle frame further comprises a base (3), the side brackets (2) on two sides are respectively upwards formed on the left side part and the right side part of the base (3), the side bracket (2) on each side comprises a bottom wheel frame (21) which is sleeved with the base (3) and can take the central line extending in the front-back direction as a turnover shaft (X24), and a connecting rod (22) which is rotatably arranged on the base (3) around a folding shaft (X21) extending in the left-right direction, a connecting rod swinging section (22 a) is arranged on the connecting rod (22), a front wheel component (41) is arranged at the front end part of the bottom wheel frame (21), a rear wheel component (42) is arranged at the rear end part of the bottom wheel frame (21), an upper limiting part (21 a) and a lower limiting part (21 b) are fixed on the bottom wheel frame (21), and the connecting rod swinging section (22 a) is positioned between the upper limiting part (21 a) and the lower limiting part (21 b), when the frame is converted to the unfolding position or the folding position, the connecting rod (22) rotates around the folding axis (X21) relative to the base (3), and the connecting rod swinging section (22 a) abuts against the lower limiting part (21 b) or hooks on the upper limiting part (21 a) to drive the bottom wheel frame (21) to rotate relative to the base (3).

9. The stroller of claim 8, wherein: the side bracket (2) at each side also comprises a front support frame (23) with the lower end part pivotally connected with the base (3) around a folding biaxial (X22), a push rod frame (25) respectively arranged on the front support frame (23) in a sliding way and an outer sliding sleeve (24), the upper end of the connecting rod (22) is pivotally connected with the lower part of the outer sliding sleeve (24) around a folding three-axis (X23), the folding axis (X21), the folding axis (X22) and the folding axis (X23) are arranged in parallel, the two folding shafts (X22) are positioned in front of the one folding shaft (X21), a push rod locking mechanism is arranged between the front supporting frame (23) and the push rod frame (25), a sliding sleeve locking mechanism which is triggered to unlock through the downward sliding of the push rod frame (25) is arranged between the front support frame (23) and the outer sliding sleeve (24), the base joints (13) are respectively fixedly or detachably connected with the corresponding front brackets (23).

10. The child folding stroller of claim 9, wherein: the bottom wheel frame (21) comprises a bottom wheel shaft rod section (211), a rear wheel joint part (213) fixed at the rear end part of the bottom wheel shaft rod section (211), and a front wheel joint part (212) fixed at the front end part of the bottom wheel shaft rod section (211), wherein 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 part (213), the upper limit part (21 a) is arranged on the bottom wheel shaft rod section (211) or the upper part of the rear wheel joint part (213), and the lower limit part (21 b) is arranged on the rear wheel joint part (213).

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