Folding baby carriage

Abstract

The embodiment of the utility model provides a folding baby carriage, and relates to the field of baby carriages. The folding baby carriage comprises a backrest plate, two push handle pipes, two front foot pipes, two rear foot pipes, unlocking connectors and lock catch assemblies, the two push handle pipes are connected with the two front foot pipes respectively, the unlocking connectors are arranged at the connecting positions of the push handle pipes and the front foot pipes, the backrest plate is arranged between the two push handle pipes, and the lock catch assemblies are arranged on the backrest plate. The lock catch assemblies are rotationally connected with the backrest plate and the unlocking connectors, and the two rear foot pipes are rotationally connected to the lock catch assemblies on the left side and the right side respectively. An unlocking connector is arranged at the connecting position of a push handle pipe and a front foot pipe of the baby carriage, locking or rotation of the push handle pipe and the front foot pipe is achieved through the unlocking connector, meanwhile, a backrest plate is connected with the push handle pipe through a lock catch assembly, the backrest plate can be locked or rotated through the lock catch assembly, and due to the fact that movement of the unlocking connector and movement of the lock catch assembly do not interfere with each other, the backrest plate can be locked or rotated. Therefore, the backrest plate or the push handle pipe can be independently folded, and the use is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of baby carriage, specifically, relate to a folding baby carriage. BACKGROUND

[0002] Baby carriage is the tool that most of the current social baby -raising family is indispensable, baby carriage is used for placing baby and can push movement, provides great convenience when going out.

[0003] Baby carriage is generally divided into frame part and seat part, the seat part is connected to the frame, most of the existing baby carriage has the function of folding storage, to reduce the space of storage occupation, but the baby carriage on the market at present, the folding action of the frame part and the seat part interferes with each other, causes the folding inconvenience. SUMMARY

[0004] The utility model provides a folding baby carriage, it can solve the folding inconvenience of the existing baby carriage.

[0005] The embodiment of the utility model can be realized as follows:

[0006] The embodiment of the utility model provides a folding baby carriage, it includes:

[0007] Backrest plate, two push handle tubes, two front leg tubes, two rear leg tubes, unlocking joint and lock catch assembly;

[0008] Two push handle tubes are connected with two front leg tubes respectively, and the connecting place of push handle tube and front leg tube is provided with unlocking joint, and push handle tube realizes locking or rotation with front leg tube through unlocking joint;

[0009] The backrest plate is arranged between the two push handle tubes, the lock catch assembly is rotatably connected with the backrest plate and the unlocking joint, so that the backrest plate can be locked or rotated;

[0010] Two rear leg tubes are rotatably connected to the lock catch assemblies on the left and right sides respectively.

[0011] Optionally, the unlocking joint includes a folding handle, a pull rope, a folding pin and a front leg built-in part, the folding handle is connected with the pull rope and is slidingly arranged in the push handle tube, the folding pin is connected with the pull rope, and the folding pin is also detachably connected with the front leg built-in part, and the front leg built-in part is arranged in the front leg tube.

[0012] Optionally, the unlocking joint further includes a pull rope guide block, a pull rope clamp and a folding pin spring, the pull rope guide block has a limiting slot, the pull rope clamp is installed in the limiting slot and can move in the limiting slot, the folding pin spring is arranged between the pull rope clamp and the pull rope guide block, and the folding pin spring is used to drive the pull rope clamp to reset;The pull rope is connected to the pull rope clamp, and the pull rope clamp is connected with the folding pin.

[0013] Optionally, the push handle pipe is further provided with a second lock for locking or unlocking the folding handle.

[0014] Optionally, the second lock comprises a lock button, a lock spring and a lock inner sleeve, the lock button is installed in the lock inner sleeve and connected with the lock spring.

[0015] The lock inner sleeve is installed on the folding handle, the folding handle is provided with a wall hole, the push handle pipe is provided with a limiting clamping hole, and the lock button can pass through the wall hole and the limiting clamping hole in sequence under the pushing of the lock spring, so that the folding handle is locked on the push handle pipe.

[0016] Optionally, the end of the front leg pipe is sleeved with a front leg joint head, the front leg built-in part is partially accommodated in the front leg joint head, the end of the push handle pipe is connected with a handle connecting seat, and the front leg joint head and the handle connecting seat are rotatably connected.

[0017] Optionally, the stroller comprises a seat plate side plate and a seat plate side shell, the seat plate side plate is connected with the seat plate side shell, the lock catch assembly is arranged between the seat plate side plate and the seat plate side shell, and the backrest plate is rotatably connected with the seat plate side plate and connected with the lock catch assembly.

[0018] Optionally, the lock catch assembly comprises a backrest pull wire, a backrest clamping pin and a backrest tooth, the backrest pull wire is connected with the backrest clamping pin, the backrest clamping pin is arranged on the backrest plate, the backrest tooth is arranged on the seat plate side plate, the backrest clamping pin and the backrest tooth are connected in a manner that can be separated and connected, and the backrest clamping pin can be separated from the backrest tooth under the pulling of the backrest pull wire.

[0019] Optionally, the lock catch assembly further comprises a seat plate side inner cover, a seat plate gear spring, a seat plate gear, a seat plate gear top block and a seat plate gear pull rod arranged in sequence from outside to inside, the two ends of the seat plate gear spring are respectively abutted with the seat plate side inner cover and the seat plate gear, the seat plate gear is connected with the seat plate gear top block, the seat plate gear top block is connected with the seat plate gear pull rod, and the seat plate gear pull rod is installed on the seat plate side plate.

[0020] When the backrest clamping pin is separated from the backrest tooth, the backrest plate is rotated, the seat plate side plate drives the seat plate gear pull rod to move, the seat plate gear pull rod extrudes and pushes the seat plate gear top block, the seat plate gear top block pushes the seat plate gear, the seat plate gear compresses the seat plate gear spring and pushes the seat plate side inner cover, the seat plate side inner cover is separated from the seat plate side plate to realize unlocking.

[0021] Optionally, the stroller further comprises a backrest handle and a torsional spring, the upper end of the backrest pull wire is connected with the backrest handle, the backrest handle is rotatably connected with the backrest plate, and the torsional spring is arranged between the backrest handle and the backrest plate, and the torsional spring is used for resetting the backrest handle after being twisted.

[0022] The embodiment of the utility model has the advantages of:

[0023] The folding baby carriage comprises a backrest plate, two push handle tubes, two front leg tubes, two rear leg tubes, an unlocking joint and a lock catch assembly, the two push handle tubes are connected with the two front leg tubes respectively, the connection part of the push handle tube and the front leg tube is provided with the unlocking joint, the backrest plate is arranged between the two push handle tubes, the lock catch assembly is rotatably connected with the backrest plate and the unlocking joint, and the two rear leg tubes are rotatably connected with the lock catch assemblies on the left and right sides respectively. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical schemes of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.

[0025] Figure 1 It is a whole schematic view of the folding baby carriage provided in the embodiments of the present application.

[0026] Figure 2 It is a side schematic view of the folding baby carriage provided in the embodiments of the present application.

[0027] Figure 3 It is a schematic view of the folding baby carriage after being folded provided in the embodiments of the present application.

[0028] Figure 4 It is an exploded view of the unlocking joint provided in the embodiments of the present application.

[0029] Figure 5 It is an exploded view of the lock catch assembly and the backrest plate provided in the embodiments of the present application.

[0030] Figure 6 It is an exploded view of the lock catch assembly provided in the embodiments of the present application.

[0031] Figure 7 It is a structural schematic view of the backrest pull handle provided in the embodiments of the present application.

[0032] Icon: 1-backrest plate; 10-backrest pull handle; 11-torsion spring; 12-roller; 13-inclined push groove; 2-push handle tube; 20-handle connecting seat; 21-connecting handle; 22-decorative cover; 23-decorative ring; 3-front leg tube; 30-front leg joint head; 4-rear leg tube; 40-connecting rod; 5-unlocking joint; 50-retracting handle; 501-wall hole; 502-internal sleeve of rope; 51-pull rope; 52-retracting pin; 53-internal part of front leg; 54-pull rope guide block; 541-limiting groove; 55-pull rope clamp; 56-retracting clamp spring; 6-locking buckle assembly; 60-backrest pull wire; 61-backrest pin; 611-wire hole; 62-backrest tooth; 63-side inner cover of seat; 631-convex strip; 64-seat gear spring; 65-seat gear; 66-seat gear top block; 661-inclined platform; 67-seat gear pull rod; 671-convex block; 7-two-way lock; 70-lock button; 71-lock spring; 72-internal sleeve of lock; 8-side plate of seat plate; 80-outer shell of side plate of seat plate; 801-rotary groove; 81-outer side cover; 82-protection cover. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0035] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0037] In addition, if the terms "first", "second" or the like are used herein, they are used only for distinguishing one element from another, and do not imply a relative importance.

[0038] The term "comprising" or "including" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0039] Unless otherwise explicitly specified and limited, the terms "arranged", "connected" and the like should be interpreted broadly, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected, can be mechanically connected, or electrically connected, can be directly connected, or indirectly connected through an intermediate medium, and can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0040] It should be noted that the features in the embodiments of the utility model can be combined with each other without conflict.

[0041] Please refer to Figures 1 to 3 The utility model discloses an embodiment of a folding baby carriage, comprising: backrest plate 1, two push handle tubes 2, two front leg tubes 3, two rear leg tubes 4, unlocking joint 5 and lock catch assembly 6, two push handle tubes 2 are arranged side by side and the lower end of two push handle tubes 2 is connected with two front leg tubes 3 respectively, and unlocking joint 5 is arranged at the connection of push handle tube 2 and front leg tube 3, so as to realize the locking or rotation of push handle tube 2 and front leg tube 3 through unlocking joint 5 to facilitate the unfolding or folding of the baby carriage frame, backrest plate 1 is arranged between two push handle tubes 2, and lock catch assembly 6 is connected to the left and right sides of backrest plate 1 respectively, which realizes the rotary connection of backrest plate 1 with the frame, and further realizes the gear adjustment and rotary folding of backrest plate 1, two rear leg tubes 4 are rotatably connected to the left and right lock catch assemblies 6 respectively, thereby forming a complete baby carriage frame.

[0042] The folding baby carriage of the utility model embodiment is arranged with unlocking joint 5 at the connection of the push handle tube 2 and the front leg tube 3 of the frame, and the folding function of the push handle tube 2 and the front leg tube 3 is realized through the unlocking joint 5, meanwhile, the lock catch assembly 6 is arranged on the left and right sides of the backrest plate 1, and the backrest plate 1 realizes the gear adjustment and folding function through the lock catch assembly 6, the unlocking joint 5 and the lock catch assembly 6 are arranged respectively, and the movement of each other does not affect, so that the frame or seat can be folded separately, and the use is more convenient.

[0043] Reference Figure 4 The front leg tube 3 and the handle tube 2 are both hollow tubes. The upper end of the front leg tube 3 is sleeved with a front leg joint head 30, and the lower end of the handle tube 2 is inserted with a handle connecting seat 20, which is rotatably connected with the front leg joint head 30. Specifically, one end of the front leg joint head 30 is a sleeve, which is sleeved on the outer wall of the end of the front leg tube 3, and the other end of the front leg joint head 30 is a rotating disc part. One end of the handle connecting seat 20 is a small-diameter hollow tube and is inserted into the handle tube 2, and the other end of the handle connecting seat 20 is a clamping disc, and the rotating disc part is inserted into the clamping disc and is rotatably connected with the clamping disc through a pin shaft.

[0044] The unlocking joint 5 includes a folding handle 50, a pull rope 51, a folding pin 52, a front leg built-in part 53, a pull rope guide block 54, a pull rope clamp 55, and a folding pin spring 56. The lower end of the folding pin 52 is connected with the front leg built-in part 53 in a detachable manner, the upper end of the folding pin 52 is connected with the pull rope clamp 55, the pull rope clamp 55 is installed on the pull rope guide block 54, and the folding pin spring 56 is arranged between the pull rope clamp 55 and the pull rope guide block 54.

[0045] The lower half of the front leg built-in part 53 is accommodated in the front leg tube 3, and the upper half of the front leg built-in part 53 extends out of the upper end of the front leg tube 3. A circular hole is formed in the front leg built-in part 53, and a pin shaft passes through the handle connecting seat 20, the front leg joint head 30, and the front leg built-in part 53 in sequence. The lower end of the folding pin 52 has a groove, which can be inserted into the exposed part of the upper end of the front leg built-in part 53. When the front leg built-in part 53 is connected with the folding pin 52, the two cannot rotate relative to each other. The upper end of the folding pin 52 is also provided with a mortise and tenon slot. The lower end of the pull rope clamp 55 is provided with a mortise and tenon tooth, which can be clamped in the mortise and tenon slot, thereby connecting the folding pin 52 and the pull rope clamp 55 together. The upper end of the pull rope clamp 55 has two parallel guide inserts. The middle part of the pull rope guide block 54 has a limiting slot 541, the upper part of the pull rope guide block 54 has an insert hole, and the lower end of the pull rope guide block 54 is through. The pull rope clamp 55 is installed in the limiting slot 541 and the guide inserts pass through the insert hole. The pull rope clamp 55 can move in the limiting slot 541 of the pull rope guide block 54. Since the lower end of the pull rope clamp 55 is connected with the folding pin 52 in a mortise and tenon manner, the folding pin 52 can pass through the pull rope guide block 54 with the lower end through.

[0046] The pull rope clamp 55 is also provided with a pull rope 51 hole, and the lower end of the pull rope 51 is clamped in the pull rope 51 hole. When the pull rope 51 is pulled upward, the pull rope 51 can pull the pull rope clamp 55 upward, the pull rope clamp 55 drives the folding pin 52 connected therewith to move upward, the folding pin 52 is separated from the front leg built-in part 53, thereby realizing the unlocking of the unlocking joint 5. At this time, the handle tube 2 can rotate relative to the front leg tube 3, and has the function of folding.

[0047] To enable the retractable pin 52 to automatically reset and engage with the front leg housing 53, a retractable spring 56 is installed between the two parallel guide plates of the pull cord clip 55. The lower end of the retractable spring 56 abuts against the pull cord clip 55, and the upper end abuts against the pull cord guide block 54. When the upward pulling force on the pull cord 51 is stopped, the compressed retractable spring 56 rebounds and pushes the pull cord clip 55 downward. The pull cord clip 55 pushes the retractable pin 52 downward, and the retractable pin 52 re-engages with the front leg housing 53, thus locking the front leg tube 3 and the push handle tube 2. At this time, the entire stroller frame is in the unfolded state.

[0048] It should be noted that regardless of whether the pull cord clip 55 moves upward or downward, the pull cord guide block 54 will not move. The pull cord guide block 54 is located inside the push handle tube 2 and is connected to the handle connecting seat 20.

[0049] The pull rope 51 passes through the inside of the push handle tube 2. The upper end of the pull rope 51 is connected to the inner rope sleeve 502. The inner rope sleeve 502 is installed and fixed inside the retrieval handle 50. The retrieval handle 50 is slidably sleeved on the outside of the push handle tube 2. That is, the retrieval handle 50, the push handle tube 2 and the inner rope sleeve 502 are arranged sequentially from the outside to the inside. The upper end of the inner rope sleeve 502 is fixed on the retrieval handle 50, and the lower end of the inner rope sleeve 502 is located inside the push handle tube 2. When the retrieval handle 50 is slid upward, the retrieval handle 50 will drive the inner rope sleeve 502 to move upward, which in turn will drive the pull rope 51 to move upward, and finally realize the separation of the retrieval locking pin 52 from the front foot inner part 53, and complete the preparation for retrieval.

[0050] When the retractor handle 50 stops sliding upward, it will move downward under the force of the retractor lock spring 56. In order to limit the movement distance of the retractor handle 50, a wall hole 501 is provided on the retractor handle 50, a retractor lock hole is provided on the push-pull tube, and a double lock 7 is provided to lock or unlock the retractor handle 50.

[0051] Continue to refer to Figure 4 The double lock 7 includes a lock button 70, a lock spring 71, and a lock inner sleeve 72. The lock button 70 is installed in the lock inner sleeve 72, and the lock spring 71 is installed on the lock inner sleeve 72 and connected to the lock button 70. The lock button 70 can be moved by the lock spring 71. The lock inner sleeve 72 is installed inside the folding handle 50 and is arranged side by side with the rope inner sleeve 502. When the push handle tube 2 and the front foot tube 3 are not rotating, the lock button 70 is in a state where it passes through the wall hole 501 and the folding hole in sequence under the push of the lock spring 71. At this time, the folding handle 50 is locked on the push handle tube 2 and cannot slide. When it is necessary to fold the push handle tube 2, press the lock button 70 to retract the lock button 70 into the folding hole. At this time, the folding handle 50 is unlocked from the push handle tube 2 and the folding handle 50 can slide.

[0052] Optionally, the handle connecting seat 20 is further provided with a decorative ring 23 and a decorative cover 22. The decorative ring 23 is clamped in the circular groove on the outer side of the handle connecting seat 20, and the decorative cover 22 is threadedly connected with the decorative ring 23.

[0053] Reference Figure 5 With Figure 6 and in combination Figure 1 The stroller comprises a seat plate side plate 8 and a seat plate side shell 80. The seat plate side plate 8 is connected with the seat plate side shell 80, and a cavity is formed between the seat plate side plate 8 and the seat plate side shell 80. The lock catch assembly 6 is installed in the cavity, and the backrest plate 1 is rotatably connected with the seat plate side plate 8 through the lock catch assembly 6.

[0054] The lock catch assembly 6 comprises a backrest pull wire 60, a backrest catch pin 61, a backrest tooth 62, a seat side inner cover 63, a seat gear spring 64, a seat gear 65, a seat gear top block 66, and a seat gear pull rod 67.

[0055] The backrest catch pin 61 is provided with a pull wire hole 611, and the lower end of the backrest pull wire 60 is clamped and connected to the pull wire hole 611 of the backrest catch pin 61. The backrest catch pin 61 is slidingly arranged on the backrest plate 1, and the backrest tooth 62 is arranged on the seat plate side plate 8. When the backrest catch pin 61 is clamped and connected to the backrest tooth 62, the backrest plate 1 and the seat plate side plate 8 cannot be relatively rotated. When the backrest pull wire 60 pulls the backrest catch pin 61 upward, the backrest catch pin 61 is disengaged from the backrest tooth 62, and the backrest plate 1 can be rotated relative to the backrest seat plate side plate 8 to adjust the inclination angle of the backrest plate 1.

[0056] An installation groove is arranged on the seat plate side plate 8 away from the backrest tooth 62, and the seat gear pull rod 67 is installed in the installation groove. The seat gear pull rod 67 is provided with a protruding block 671, and the part where the backrest plate 1 meets the seat plate side plate 8 is provided with an inclined push groove 13. The protruding block 671 is accommodated in the inclined push groove 13. When the backrest plate 1 is rotated relative to the seat plate side plate 8, the inclined push groove 13 will also rotate. The protruding block 671 accommodated in the inclined push groove 13 meets the end groove wall of the inclined push groove 13. Continuing to rotate the backrest plate 1 will drive the seat gear pull rod 67 to move through the protruding block 671.

[0057] The side of the seat gear pull rod 67 away from the protrusion 671 is connected with the seat gear top block 66, the seat gear top block 66 has an inclined surface 661, the seat gear pull rod 67 has an inclined sliding surface, the inclined sliding surface is connected with the inclined surface 661, when the seat gear pull rod 67 moves, the inclined sliding surface slides with the inclined surface 661, the seat gear pull rod 67 extrudes the seat gear top block 66 to the outside. Since the outside of the seat gear top block 66 is connected with the seat gear 65, the outside of the seat gear 65 is provided with the seat side inner cover 63, therefore, when the seat gear top block 66 moves to the outside, the seat gear 65 moves to the outside, the seat gear 65 extrudes the seat side inner cover 63 to move to the outside, thereby realizing the unlocking and separation of the seat side inner cover 63 and the seat plate side plate 8, at this time, the backrest plate 1 can be rotated at will to realize folding.

[0058] The seat gear 65 and the seat side inner cover 63 are further provided with the seat gear spring 64, the two ends of the seat gear spring 64 are respectively connected with the seat side inner cover 63 and the seat gear 65, when it is needed to open the folded backrest plate 1, the seat gear spring 64 can push the reset of the seat gear 65, the seat gear 65 pushes the seat gear top block 66 and the seat gear pull rod 67 in turn, the protrusion 671 of the seat gear pull rod 67 pushes the backrest plate 1 to rotate, thereby unfolding the backrest plate 1.

[0059] The seat side inner cover 63 is arranged on the side of the seat plate side shell 80, the side of the seat plate side shell 80 is provided with a rotating groove 801, the seat side inner cover 63 is provided with a convex strip 631, the convex strip 631 is arranged in the rotating groove 801 and can slide in the rotating groove 801. The seat plate side plate 8 is provided with a center shaft, the center shaft passes through the seat gear pull rod 67, the seat gear top block 66, the seat gear 65, the seat plate side shell 80, the seat side inner cover 63 in turn and is fixed with the seat side inner cover 63; when the backrest plate 1 is folded, the center shaft of the backrest plate 1 drives the seat side inner cover 63 connected therewith to rotate, the convex strip 631 on the seat side inner cover 63 slides along the rotating groove 801 of the seat plate side shell 80, the length of the rotating groove 801 limits the rotating angle of the backrest plate 1, thereby making the backrest plate 1 have different folding angles.

[0060] Optionally, the outside of the seat side inner cover 63 is further provided with an outside cover 81 and a protection cover 82, the protection cover 82 is connected with the seat side inner cover 63, the outside cover 81 is arranged on the outside of the protection cover 82, the outside cover 81 is provided with a pin shaft hole, the pin shaft arranged at the connection position of the front leg pipe 3 and the push handle pipe 2 passes through the pin shaft hole, thereby realizing the connection of the backrest plate 1 with the front leg pipe 3 and the push handle pipe 2.

[0061] Reference Figure 7The upper end of the backrest pull wire 60 extends to the upper part of the backrest plate 1, the upper part of the backrest plate 1 is rotationally connected with a backrest pull handle 10, the backrest pull handle 10 is provided with a pull wire slot, and the upper end of the backrest pull wire 60 is fixed in the pull wire slot; when the backrest pull handle 10 is rotated, the backrest pull wire 60 is driven to move upwards, so that the backrest catch pin 61 is separated from the backrest tooth 62.

[0062] Optionally, the backrest pull handle 10 and the backrest plate 1 are further provided with a torsion spring 11, the torsion spring 11 can reset the backrest pull handle 10 after rotation. Meanwhile, the backrest plate 1 is provided with a pull wire perforation, the pull wire perforation is provided with a roller shaft 12, the backrest pull wire 60 is connected to the backrest pull handle 10 after passing through the roller shaft 12, so that the sensitivity of the backrest pull wire 60 in power transmission is improved.

[0063] In the embodiment, the two push handle pipes 2 are provided with a connecting handle 21, the two ends of the connecting handle 21 are connected with the two push handle pipes 2 respectively, so that the push and pull operation is convenient when going out.

[0064] In the embodiment, the end of the rear leg pipe 4 is rotationally connected with the front leg pipe 3, and the rear leg pipe 4 is further rotationally connected with a connecting rod 40, and the other end of the connecting rod 40 is rotationally connected with the outer cover 81.

[0065] The folding stroller of the embodiment of the utility model separates the folding rotation of the backrest plate 1 and the folding rotation of the push handle pipe 2, so that different folding needs can be met, and the use is very convenient.

[0066] The above is only a specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A foldable stroller, characterized in that, The utility model provides a kind of folding stroller, including: Backrest plate (1), two push handle tubes (2), two front leg tubes (3), two rear leg tubes (4), unlocking joint (5) and lock catch assembly (6); Two The push handle tube (2) is connected with two front leg tubes (3) respectively, and the connecting place of push handle tube (2) and front leg tube (3) is provided with unlocking joint (5), and push handle tube (2) is locked or rotated with front leg tube (3) by unlocking joint (5); The backrest plate (1) is arranged between the two push handle tubes (2), and the lock catch assembly (6) is rotatably connected with the backrest plate (1) and the unlocking joint (5), so that the backrest plate (1) can be locked or rotated; Two The rear leg tube (4) is rotatably connected to the left and right lock catch assemblies (6) respectively.

2. The foldable stroller of claim 1, wherein, The unlocking joint (5) includes a folding handle (50), a pull rope (51), a folding pin (52), and a front leg built-in component (53). The folding handle (50) is connected with the pull rope (51) and is slidingly arranged in the push handle tube (2). The folding pin (52) is connected with the pull rope (51). The folding pin (52) is also detachably connected with the front leg built-in component (53). The front leg built-in component (53) is arranged in the front leg tube (3).

3. The foldable stroller of claim 2, wherein, The unlocking joint (5) further includes a pull rope guide block (54), a pull rope clamp (55), and a folding pin spring (56). The pull rope guide block (54) has a limiting slot (541). The pull rope clamp (55) is installed in the limiting slot (541) and can move in the limiting slot (541). The folding pin spring (56) is arranged between the pull rope clamp (55) and the pull rope guide block (54). The folding pin spring (56) is used to drive the pull rope clamp (55) to reset. The pull rope (51) is connected with the pull rope clamp (55). The pull rope clamp (55) is connected with the folding pin (52).

4. The foldable stroller of claim 2, wherein, The push handle tube (2) is also provided with a two-way lock (7), which is used to lock or unlock the folding handle (50).

5. The foldable stroller of claim 4, wherein, The two-way lock (7) includes a lock button (70), a lock spring (71), and a lock inner sleeve (72). The lock button (70) is installed in the lock inner sleeve (72) and is connected with the lock spring (71). The lock inner sleeve (72) is installed in the folding handle (50). The folding handle (50) has a wall hole (501). The push handle tube (2) has a limiting clamping hole. The lock button (70) can pass through the wall hole (501) and the limiting clamping hole in sequence under the push of the lock spring (71) to lock the folding handle (50) on the push handle tube (2).

6. The foldable stroller of claim 2, wherein, The end of the front leg tube (3) is sleeved with a front leg joint head (30). The front leg built-in component (53) is partially contained in the front leg joint head (30). The end of the push handle tube (2) is connected with a handle connecting seat (20). The front leg joint head (30) is rotatably connected with the handle connecting seat (20).

7. The foldable stroller according to any one of claims 1 to 6, characterized in that, The stroller comprises a seat side plate (8) and a seat side shell (80), the seat side plate (8) is connected with the seat side shell (80), the lock assembly (6) is arranged between the seat side plate (8) and the seat side shell (80), and the backrest plate (1) is rotatably connected with the seat side plate (8) and connected with the lock assembly (6).

8. The foldable stroller of claim 7, wherein, The lock assembly (6) comprises a backrest pull wire (60), a backrest pin (61) and a backrest tooth (62), the backrest pull wire (60) is connected with the backrest pin (61), the backrest pin (61) is arranged on the backrest plate (1), the backrest tooth (62) is arranged on the seat side plate (8), the backrest pin (61) and the backrest tooth (62) are connected in a detachable manner, and the backrest pin (61) can be separated from the backrest tooth (62) under the pulling of the backrest pull wire (60).

9. The foldable stroller of claim 8, wherein, The lock assembly (6) further comprises a seat side inner cover (63), a seat gear spring (64), a seat gear (65), a seat gear top block (66) and a seat gear pull rod (67) arranged in sequence from outside to inside, two ends of the seat gear spring (64) are respectively abutted with the seat side inner cover (63) and the seat gear (65), the seat gear (65) is connected with the seat gear top block (66), the seat gear top block (66) is connected with the seat gear pull rod (67), and the seat gear pull rod (67) is installed on the seat side plate (8). When the backrest pin (61) is separated from the backrest tooth (62), the backrest plate (1) is rotated, the seat side plate (8) drives the seat gear pull rod (67) to move, the seat gear pull rod (67) extrudes and pushes the seat gear top block (66), the seat gear top block (66) pushes the seat gear (65), the seat gear (65) compresses the seat gear spring (64) and pushes the seat side inner cover (63), the seat side inner cover (63) is separated from the seat side plate (8) to realize unlocking.

10. The foldable stroller of claim 8, wherein, The stroller further comprises a backrest pull handle (10) and a torsional spring (11), an upper end of the backrest pull wire (60) is connected with the backrest pull handle (10), the backrest pull handle (10) is rotatably connected with the backrest plate (1), the torsional spring (11) is arranged between the backrest pull handle (10) and the backrest plate (1), and the torsional spring (11) is used for resetting the backrest pull handle (10) after being twisted.

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