Frame folding mechanism, frame locking mechanism, backrest lock releasing mechanism and stroller

Abstract

To provide a backrest lock release mechanism and a stroller.SOLUTION: The handle, the front leg, the seat, and the linkage component of the frame folding mechanism form a planar linkage mechanism, and the seat is driven to rotate and fold by driving the handle and the front leg to rotate and fold in the direction of the rear leg. The frame locking mechanism drives the sliding member and the frame unfolding locking member to slide by the unlocking driving mechanism, so that the frame unfolding locking member is disengaged from the handle locking hole and the front foot locking hole to release the frame, and the handle and the front foot can be rotated and folded toward the rear foot. The backrest locking and releasing mechanism is provided with a backrest locking member, and the locking and releasing driving mechanism drives the backrest locking member to slide, so that the backrest locking member is disengaged from the backrest portion to release the backrest portion, and the backrest portion can be rotated and folded relative to the frame.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to the technical field of baby products, and in particular to a frame folding mechanism, a frame locking mechanism, a backrest lock / release mechanism, and a stroller. [Background technology]

[0002] As baby strollers become more widely used, people have increasingly higher functional requirements for them. A stroller is expected to not only make babies feel comfortable and safe when in use, but also be able to fold into a small body when not in use, achieving the effects of aesthetics, space saving, and convenient folding.

[0003] Existing strollers typically include a frame, a backrest disposed on the frame, and a seat. When folding the stroller, the frame, the backrest, and the seat are typically folded separately, but this folding method of the stroller has the problem of being cumbersome and inconvenient to fold. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE INVENTION An object of the present invention is to provide a folding mechanism for a stroller that allows the frame and seat to be folded in conjunction with each other.

[0005] Another object of the present invention is to provide a stroller having a folding mechanism that allows the frame and seat to be folded in unison.

[0006] Another object of the present invention is to provide a frame lock mechanism that is simple in structure and can lock or release the frame.

[0007] Another object of the present invention is to provide a stroller having a frame locking mechanism that locks the frame.

[0008] Another object of the present invention is to provide a backrest lock / release mechanism that is simple in structure and can release the backrest.

[0009] Another object of the present invention is to provide a stroller having a backrest lock / release mechanism that allows the backrest to be released. [Means for solving the problem]

[0010] The present invention is realized by a frame folding mechanism according to claim 1, a stroller according to claim 14, a frame locking mechanism according to claim 15, a stroller according to claim 28, a backrest lock and release mechanism according to claim 30, and a stroller according to claim 42. The dependent claims relate to developments and improvements of the invention.

[0011] As will be more clearly understood from the detailed description below, the present invention provides a frame folding mechanism including a frame, a seat, and interlocking parts, wherein the frame includes a handle, front legs, and rear legs, the handle, front legs, and rear legs are coaxially pivotally connected to form a first center of rotation, the front legs are pivotally connected to the seat to form a second center of rotation, one end of the interlocking part is pivotally connected to the seat to form a third center of rotation, and the other end of the interlocking part is pivotally connected to the handle to form a fourth center of rotation, the first center of rotation, the second center of rotation, the third center of rotation, and the fourth center of rotation are distributed at intervals, and by rotating and folding the frame, the seat is rotated and folded in conjunction with the interlocking parts by the interlocking parts.

[0012] Compared with conventional technologies, the handle, front legs, and rear legs of the frame folding mechanism of the present invention are pivotally connected coaxially, the front legs are pivotally connected to the seat, and an interlocking part is pivotally connected between the seat and the handle. As a result, the handle, front legs, seat, and interlocking part form a planar link mechanism, which drives the handle and front legs to rotate toward the rear legs to fold, and the seat can be rotated and folded in tandem. Therefore, the frame folding mechanism of the present invention rotates the frame and seat in tandem to fold, making it simple and convenient to operate and suitable for a wide range of applications.

[0013] As will become more apparent from the detailed description below, the present invention provides a stroller having the above-described frame folding mechanism, with wheels pivotally connected to the bottom of the front legs and the bottom of the rear legs.

[0014] Compared with the prior art, the stroller of the present invention has a frame folding mechanism, in which the handle, front legs, and rear legs of the frame folding mechanism are pivotally connected coaxially, the front legs are pivotally connected to the seat, and an interlocking part is pivotally connected between the seat and the handle, so that the handle, front legs, seat, and interlocking part form a planar link mechanism, which drives the handle and front legs to rotate toward the rear legs to fold, and the seat can be rotated in tandem to fold. Therefore, the stroller of the present invention folds by rotating the frame and seat in tandem, which is simple and convenient to operate and suitable for a wide range of applications.

[0015] As will be more clearly understood from the detailed description below, the frame lock mechanism of the present invention includes a frame, a slide part, a frame deployment lock part, and a lock release drive mechanism; the frame includes a handle, front legs, and rear legs; the handle is provided with a handle lock hole, the front legs are provided with front leg lock holes, the slide part is slidably mounted within the rear legs, the frame deployment lock part is mounted on the slide part, the frame deployment lock part is engaged with the handle lock hole and the front leg lock hole, the lock release drive mechanism is connected to the slide part, and the lock release drive mechanism drives the slide part and the frame deployment lock part to slide, thereby disengaging the frame deployment lock part from the handle lock hole and the front leg lock hole and releasing the frame.

[0016] Compared with conventional technologies, the frame lock mechanism of the present invention has a handle lock hole on the handle and front foot lock holes on the front legs, and the frame deployment lock parts are engaged with the handle lock hole and front foot lock hole to lock the handle and front feet, so that the handle and front feet cannot be rotated toward the hind feet to fold, and are locked to the frame. The lock release drive mechanism drives the slide part and the frame deployment lock part to slide, so that the frame deployment lock parts come out of the handle lock hole and front foot lock hole to release the frame, so that the handle and front feet can be rotated toward the hind feet to fold. Therefore, the frame lock mechanism of the present invention can lock and release to the frame, has a simple structure, and low production costs.

[0017] As will become more clearly apparent from the detailed description that follows, the present invention provides a stroller that includes the frame locking mechanism described above.

[0018] Compared with the prior art, the stroller of the present invention has a frame locking mechanism, which has a handle lock hole on the handle and front foot lock holes on the front feet. The frame deployment locking parts are engaged with the handle lock hole and the front foot locking hole to lock the handle and the front feet, so that the handle and the front feet cannot be rotated toward the rear feet to fold, and are locked to the frame. The lock release driving mechanism drives the slide part and the frame deployment locking part to slide, so that the frame deployment locking parts come out of the handle lock hole and the front foot locking hole to release the frame, so that the handle and the front feet can be rotated toward the rear feet to fold. Therefore, the stroller of the present invention can be locked and released to the frame, has a simple structure, and low production costs.

[0019] As will be more clearly understood from the following detailed description, the present invention provides a backrest lock and release mechanism, which includes a frame, a backrest portion, a backrest locking component, and a lock release drive mechanism, wherein the backrest portion is pivotally connected to the frame, the backrest locking component is engaged between the frame and the backrest portion, and the lock release drive mechanism is connected to the backrest locking component, and the lock release drive mechanism drives the backrest locking component to slide, thereby disengaging the backrest locking component from the backrest portion to release the backrest portion.

[0020] Compared with the prior art, the backrest lock and release mechanism of the present invention is provided with a backrest locking component, which is engaged between the frame and the backrest portion to lock the backrest to the frame, and the lock and release drive mechanism is connected to the backrest locking component, so that the lock and release drive mechanism can drive the backrest locking component to slide, causing the backrest locking component to disengage from the backrest portion, releasing the backrest portion, which can then rotate relative to the frame and be folded, resulting in a simple structure and low production costs.

[0021] As will become more clearly apparent from the detailed description that follows, the present invention provides a stroller having the above-described backrest lock release mechanism.

[0022] Compared with the prior art, the stroller of the present invention has a backrest lock and release mechanism, which is provided with a backrest locking component that is engaged between the frame and the backrest, thereby locking the backrest to the frame; and a lock and release drive mechanism is connected to the backrest locking component, which can be used to drive the backrest locking component to slide, causing the backrest locking component to disengage from the backrest, releasing the backrest, and allowing the backrest to rotate relative to the frame and be folded, resulting in a simple structure and low production costs. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a schematic diagram of the three-dimensional structure of the stroller of the present invention at a first angle. [Figure 2] 1 is a schematic diagram of the three-dimensional structure of the stroller of the present invention when folded. [Figure 3] FIG. 3 is an enlarged view of a portion A in FIG. 2. [Figure 4] 1 is a schematic diagram of the structure of the stroller of the present invention with the front leg covers separated. [Figure 5] 1 is a schematic diagram of the structure of the frame lock mechanism of the stroller of the present invention. [Figure 6] 1 is a schematic diagram of the structure of the handle connecting part of the stroller of the present invention. [Figure 7] 1 is a schematic diagram of the three-dimensional structure of the stroller of the present invention at a second angle. [Figure 8] 1 is a schematic diagram of the structure of the backrest lock release mechanism of the stroller of the present invention. [Figure 9] 1 is a schematic diagram of the three-dimensional structure of the stroller of the present invention at a third angle. [Figure 10] FIG. 10 is an enlarged view of a portion B in FIG. 9. [Figure 11] 1 is a schematic diagram of the handle, front legs and rear legs structure of the present invention. [Figure 12] 1 is a schematic diagram of the structure of the forefoot cover of the present invention. [Figure 13] 1 is a schematic diagram of the folded stroller of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0024] To explain the technical contents and structural features of the present invention in detail, the following further description is given in conjunction with the embodiments and accompanying drawings.

[0025] 1 to 5 and 8, a stroller 100 of the present invention includes a frame 1, a seat portion 2, a backrest portion 4, a handrail portion 5, a frame folding mechanism 101, a frame locking mechanism 102, and a backrest lock / release mechanism 103. The seat portion 2 is provided on the frame 1 and is used for a baby to sit on, the backrest portion 4 is provided on the seat portion 2 and is used for the baby to lean against, the frame folding mechanism 101 is provided between the frame 1 and the seat portion 2 and the folding mechanism of the stroller 100 is used to fold the frame 1 and the seat portion 2 in conjunction with each other, the frame locking mechanism 102 is provided within the frame 1 and is used to lock or release the frame 1, and the backrest lock / release mechanism 103 is provided between the backrest portion 4 and the seat portion 2 and is used to lock and release the backrest, thereby allowing the backrest to be rotated for folding.

[0026] 1 to 3, the frame folding mechanism 101 includes an interlocking part 3, and the frame 1 includes a handle 11, front legs 12, and rear legs 13. The handle 11, front legs 12, and rear legs 13 are coaxially pivotally connected to form a first center of rotation D1, the front legs 12 and seat 2 are pivotally connected to form a second center of rotation D2, one end of the interlocking part 3 is pivotally connected to the seat 2 to form a third center of rotation D3, and the other end of the interlocking part 3 is pivotally connected to the handle 11 to form a fourth center of rotation D4. The first, second, third, and fourth centers of rotation are distributed at intervals, and by rotating and folding the frame 1, the interlocking part 3 rotates and folds the seat 2. As shown in Figure 3, D1 indicates a first center of rotation formed by the coaxial pivot connection of the handle 11, the front legs 12, and the rear legs 13, D2 indicates a second center of rotation formed by the pivot connection of the front legs 12 and the seat 2, D3 indicates a third center of rotation formed by the pivot connection of the interlocking part 3 and the seat 2, and D4 indicates a fourth center of rotation formed by the pivot connection of the interlocking part 3 and the handle 11. The handle 11, the front legs 12, the seat 2, and the interlocking part 3 form a planar link mechanism, which drives the handle 11 and the front legs 12 to rotate toward the rear legs 13 and fold, thereby rotating and folding the seat 2 in tandem. Therefore, when the frame 1 is rotated and folded, the seat 2 is folded in tandem. Similarly, the frame 1 can be folded in tandem by rotating and folding the seat 2, and the folding method is not limited thereto. Specifically, a handle cover 111 is provided at one end of the handle 11, a front foot cover 121 is provided at one end of the front foot 12, and a rear foot cover 131 is provided at one end of the rear foot 13, the handle cover 111, the front foot cover 121, and the rear foot cover 131 are pivotally connected coaxially to form a first rotation center D1, the rear foot cover 131 is located between the front foot cover 121 and the handle cover 111, and the interlocking part 3 is pivotally connected to the handle cover 111, away from the first rotation center.

[0027] Referring to Figures 2 and 3, in this embodiment, the seat section 2 includes a seat folding drive part 21 and a seat main body 22, one end of the seat folding drive part 21 is pivotally connected to the front foot 12, the center of rotation between the seat folding drive part 21 and the front foot 12 is a second rotation center D2, the other end of the seat folding drive part 21 is pivotally connected to the interlocking part 3, the center of rotation between the seat folding drive part 21 and the interlocking part 3 is a third rotation center D3, and the seat main body 22 is fixedly connected to the seat folding drive part 21. Specifically, the seat folding drive assembly 21 includes a first folding drive part 211 and a second folding drive part 212 formed by bending and extending from one end of the first folding drive part 211, the seat body 22 is connected to the first folding drive part 211 and the second folding drive part 212, and the bent part between the first folding drive part 211 and the second folding drive part 212 is pivotally connected to the front legs 12. Furthermore, the seat body 22 includes a front seat tube part 221 and a rear seat tube part 222, the front seat tube part 221 is connected to the first folding drive part 211 and the second folding drive part 212, respectively, and the front seat tube part 221 is pivotally connected to the rear seat tube part 222. When the handlebars 11 and front legs 12 are rotated toward the rear legs 13 to fold, the front seat tube 221 of the seat body 22 can be rotated relative to the rear seat tube 222 by the seat folding drive part 21 to fold. Specifically, the pivot connection axis between the seat folding drive part 21 and the interlocking part 3 is the same as the pivot connection axis between the rear seat tube 222 and the front seat tube 221, that is, the rotation center between the rear seat tube 222 and the front seat tube 221 is the third rotation center. Furthermore, the rear seat tube 222 is pivotally connected to the rear legs 13 to form a fifth rotation center, and the fifth rotation center and the first rotation center are spaced apart. As shown in FIG. 3, D5 denotes the rotation center between the rear seat tube 222 and the rear legs 13. When folding by rotating the handle 11 and the front legs 12 toward the rear legs 13, the operation of the seat folding drive part 21 and the interlocking part 3 rotates the front seat tube part 221 and the rear seat tube part 222 of the seat body 22 toward each other and folds them, thereby folding the entire seat part 2.

[0028] 1, in this embodiment, the handle 11 includes an upper handle portion 112 and a lower handle portion 113. The upper handle portion 112 is pivotally connected to the lower handle portion 113, and the front foot 12, the rear foot 13, and the lower handle portion 113 are pivotally connected coaxially to form a first rotation center. The handle 11 can be folded by rotating the upper handle portion 112 toward the lower handle portion 113 and folding it.

[0029] 1, in this embodiment, the handrail section 5 is fixedly connected to the interlocking part 3. When the handle 11 and front legs 12 of the frame 1 are rotated toward the rear legs 13 to fold it, the interlocking part 3 is swung, and the handrail section 5 is rotated and folded by the interlocking part 3. Specifically, wheels 14 are pivotally connected to the bottom of the front legs 12 and the bottom of the rear legs 13.

[0030] 11 to 13, in this embodiment, elastic bosses 132 are provided on the hind leg covers 131 of the hind legs 13, and engagement grooves 122 are provided on the front leg covers 121 of the front legs 12. By rotating the frame 1 to fold or unfold it, the elastic bosses 132 are engaged with or disengaged from the engagement grooves 122. After the front legs 12 of the frame 1 are rotated toward the hind legs 13 to fold it, the elastic bosses 132 of the hind leg covers 131 are engaged with the engagement grooves 122 of the front leg covers 121, locking the front legs 12 and the hind legs 13 together. Furthermore, when it is necessary to lock the frame 1 and unfold it, the elastic bosses 132 are elastic, so that the front legs 12 are rotated relative to the hind legs 13 to unfold it. During this process, the elastic bosses 132 of the hind leg covers 131 are disengaged from the engagement grooves 122 of the front leg covers 121 due to the force they receive, releasing the front legs 12 and the hind legs 13.

[0031] 4 to 6, the frame lock mechanism 102 includes a slide part 6, a frame deployment lock part 7, and a lock release drive mechanism 8, a handle cover 111 of the handle 11 has a handle lock hole 114, a front foot cover 121 of the front foot 12 has a front foot lock hole 123, the slide part 6 is slidably provided within the rear foot 13, the frame deployment lock part 7 is provided in the slide part 6, the frame deployment lock part 7 is engaged with the handle lock hole 114 and the front foot lock hole 123, the slide part 6 is provided with a slot hole 62 through which the pivot connection shaft between the handle 11, the front foot 12, and the rear foot 13 passes, the lock release drive mechanism 8 is connected to the slide part 6, and the lock release drive mechanism 8 drives the slide part 6 and the frame deployment lock part 7 to slide, thereby disengaging the frame deployment lock part 7 from the handle lock hole 114 and the front foot lock hole 123 and releasing the frame 1. Specifically, the handle 11 is provided with a handle connecting piece 115, which is fixedly connected to the handle cover 111, and a handle lock hole 114 is provided in the handle connecting piece 115, where the handle connecting piece 115 and the handle cover 111 belong to a part of the handle 11; the front foot 12 is provided with a front foot connecting piece 124, which is fixedly connected to the front foot cover 121, and a front foot lock hole 123 is provided in the front foot connecting piece 124; A decorative cover 125 is connected to the outside of the foot cover 121, wherein the front foot connection part 124 and the front foot cover 121 belong to part of the front foot 12, a rear foot connection part 134 is provided on the rear foot 13, the rear foot connection part 134 is fixedly connected to the rear foot cover 131, a position-limiting groove 133 is provided on the rear foot connection part 134, and the frame deployment lock part 7 slidably passes through the position-limiting groove 133, wherein the rear foot connection part 134 and the rear foot cover 131 belong to part of the rear foot 13.

[0032] 4 to 6, in this embodiment, the lock release drive mechanism 8 includes a lock release drive part 81 and a first pulling part 82, and the lock release drive part 81 is slidably provided on the handle connection part 115 of the handle 11, but is not limited to this. In other embodiments, the lock release drive part 81 may be slidably provided at another position on the handle 11, and a first inclined surface 811 is provided on the lock release drive part 81, and a second inclined surface 61 is provided on the slide part 6, and the first inclined surface 811 abuts against the second inclined surface 61, The first pulling component 82 is connected to the lock release drive component 81, and the first pulling component 82 pulls the lock release drive component 81, causing the lock release drive component 81 to slide, and the operation of the first inclined surface 811 and the second inclined surface 61 drives the slide component 6 and the frame deployment lock component 7 to slide, causing the frame deployment lock component 7 to disengage from the handle lock hole 114 and the front foot lock hole 123, releasing the frame 1 and allowing the handle 11 and the front feet 12 to rotate toward the rear feet 13 for folding. The structure of the lock release drive mechanism 8 is not limited thereto, and for example, the lock release drive mechanism 8 may be provided with only the lock release drive component 81, and one end of the lock release drive component 81 may protrude outside the handle 11, and the lock release drive component 81 may be directly driven to slide, causing the slide component 6 and the frame deployment lock component 7 to slide. Specifically, a slide groove 116 is provided in the handle connecting part 115 of the handle 11, the lock release drive part 81 is provided to be slidably engaged in the slide groove 116, the first pulling part 82 pulls the lock release drive part 81, causing the lock release drive part 81 to slide along the slide groove 116, and the slide groove 116 limits the position of the lock release drive part 81. Furthermore, the lock release drive mechanism 8 further includes a lock release operation mechanism 83, which is provided in the handle 11, the first pulling part 82 is connected to the lock release operation mechanism 83, and the lock release operation mechanism 83 is operated to pull the first pulling part 82. Since the lock release operation mechanism 83 is a conventional technology, a description thereof will be omitted here.

[0033] 4 to 6, the lock release drive mechanism 8 includes a first elastic reset component 84 for resetting the frame deployment lock component 7, and the first elastic reset component 84 is provided between one of the frame deployment lock component 7 and the slide component 6 and the rear foot 13. In this embodiment, the first elastic reset component 84 is provided between the slide component 6 and the rear foot 13. When the lock release operation mechanism 83 pulls the first pulling component 82, the first pulling component 82 pulls the lock release drive component 81 so that it slides along the slide groove 116, driving the slide component 6 to slide. The slide component 6 compresses the first elastic reset component 84, and when the lock release operation mechanism 83 is released, the slide component is reset by the elastic restoring force of the first elastic reset component 84. The configuration of the first elastic reset component 84 is not limited thereto.

[0034] 7 to 10, the backrest lock release mechanism 103 includes a backrest locking element 9. The backrest portion 4 is pivotally connected to the frame 1, specifically, the backrest portion 4 is pivotally connected to the seat portion 2 of the frame 1, the backrest locking element 9 is engaged between the frame 1 and the backrest portion 4, the lock release driving mechanism 8 is connected to the backrest locking element 9, and the lock release driving mechanism 8 drives the backrest locking element 9 to slide, thereby disengaging the backrest locking element 9 from the backrest portion 4 and releasing the backrest portion 4, and at this time, the backrest locking element 9 is still engaged with the seat portion 2 of the frame 1.

[0035] 7 to 10, in this embodiment, a positioning component 23 is provided on the seat section 2 of the frame 1, the backrest section 4 is pivotally connected to the positioning component 23, and the backrest locking component 9 is engaged between the positioning component 23 and the backrest section 4. Here, the positioning component 23 is fixedly connected to the rear seat pipe section 222 of the seat section 2. Specifically, a first internal gear 231 is provided inside the positioning component 23, a second internal gear 421 is provided inside the backrest section 4, and an external gear 91 is provided on the backrest locking component 9, and the external gear 91 is engaged and connected with the first internal gear 231 and the second internal gear 421, respectively. The lock release drive mechanism 8 drives the backrest locking component 9 to slide in the direction of the first internal gear 231, causing the backrest locking component 9 to disengage from the second internal gear 421, releasing the backrest portion 4, which can then be rotated relative to the seat portion 2 and folded.

[0036] 8 to 10, in this embodiment, the backrest portion 4 includes a backrest main body 41 and a backrest fixing part 42, the backrest main body 41 is fixedly connected to the backrest fixing part 42, the second inner gear 421 is provided inside the backrest fixing part 42, the backrest fixing part 42 is pivotally connected to the positioning part 23, and the pivot connection axis between the backrest fixing part 42 of the backrest portion 4 and the positioning part 23 passes through the backrest locking part 9.

[0037] 8 to 10 , in this embodiment, the lock release drive mechanism 8 further includes a backrest folding drive part 85, which is in contact with and connected to the backrest lock part 9. The backrest folding drive part 85 slides to push the backrest lock part 9, causing the backrest lock part 9 to move and disengage from the backrest portion 4. Specifically, the backrest folding drive part 85 is provided with a third inclined surface 851, which is in contact with and connected to the third inclined surface 851. The backrest folding drive part 85 drives the backrest lock part 9 to move using the third inclined surface 851, causing the backrest lock part 9 to disengage from the backrest portion 4. Here, the backrest locking component 9 may be provided on the fourth inclined surface, which is connected to the third inclined surface 851 of the backrest folding drive component 85. Without being limited thereto, for example, the backrest folding drive component 85 may be provided on the backrest fixed component 42, and by pushing the backrest folding drive component 85, the backrest folding drive component 85 pushes and moves the backrest locking component 9 to disengage from the backrest 4. Specifically, the backrest locking component 9 includes an engaging portion 92 and a fixing portion 93, the engaging portion 92 is engaged between the frame 1 and the backrest 4 and fixedly connected to the fixing portion 93, and the backrest folding drive component 85 is provided between the engaging portion 92 and the fixing portion 93, and the fixing portion 93 is in contact with and connected to the third inclined surface 851. By sliding the backrest folding drive part 85, the fixed part 93 of the backrest lock part 9 is pressed, moving the fixed part 93 and the engagement part 92, thereby disengaging the engagement part 92 from the second internal gear 421 of the backrest fixing part 42.

[0038] 8 to 10, in this embodiment, the lock release drive mechanism 8 further includes a second pulling part 86, which is connected to the backrest folding drive part 85 and can pull the backrest folding drive part 85. By pulling the second pulling part 86, the backrest folding drive part 85 is moved. Furthermore, the lock release operation mechanism 83 is connected to the second pulling part 86, which passes through a hole in the rear seat tube part 222 and is connected to the backrest folding drive part 85, and the lock release operation mechanism 83 is operated to pull the second pulling part 86. Specifically, a steel wire is provided in the lock release operating mechanism 83, one end of which is split into two, one being the first pulling member 82 and the other being the second pulling member 86. By operating the other end of the steel wire and pulling the first pulling member 82 and the second pulling member 86, the frame 1 is released by the frame lock mechanism 102 and the backrest 4 is released by the backrest lock release mechanism 103, and the front legs 12 and handle 11 of the frame 1 can be rotated toward the rear legs 13 to fold the frame, the seat 2 can be rotated in conjunction with the front legs 12 and the handle 11 can be rotated and folded, and the backrest 4 can be rotated and folded by operating the backrest 4, thereby folding the entire stroller 100. Furthermore, the lock release drive mechanism 8 further includes a second elastic reset member 87 for resetting the backrest lock member 9, which is provided between the backrest lock member 9 and the frame 1. Specifically, the second elastic reset component 87 is disposed between the fixed portion 93 of the backrest lock component 9 and the positioning component 23. The second pulling component 86 is pulled, which in turn pulls the backrest folding drive component 85, thereby pushing the backrest lock component 9 to move, causing the engagement portion 92 of the backrest lock component 9 to move and disengage from the second internal gear 421 of the backrest fixed component 42, compressing the second elastic reset component 87. When the second pulling component 86 is released, the engagement portion 92 of the backrest lock component 9 is reset by the action of the second elastic reset component 87, and the engagement portion 92 of the backrest lock component 9 is re-engaged with the second internal gear 421, thereby locking the backrest 4.

[0039] 1 to 13, the operating principle of the stroller 100 of the present invention is as follows.

[0040] When the stroller 100 needs to be folded, the lock release operating mechanism 83 pulls the first pulling component 82, which pulls the lock release drive component 81 so that it slides along the slide groove 116, and the lock release drive component 81 uses the first inclined surface 811 to drive the slide component 6 to slide, and the sliding of the slide component 6 disengages the frame deployment lock component 7 from the handle lock hole 114 and the front foot lock hole 123, releasing the frame 1, so that the handle 11 and the front feet 12 can be rotated toward the rear feet 13 for folding. When the handle 11 and the front feet 12 can be rotated toward the rear feet 13 for folding, the operation of the seat folding drive component 21 and the interlocking component 3 rotates the front seat tube portion 221 and the rear seat tube portion 222 of the seat main body 22 toward each other and folds them, and the entire seat portion 2 is folded. When the lock release mechanism 83 is operated to pull the first pulling component 82, the lock release mechanism 83 simultaneously pulls the second pulling component 86, which in turn pulls the backrest folding drive component 85. As a result, the third inclined surface 851 of the backrest folding drive component 85 pushes and moves the fixed portion 93 of the backrest lock component 9, which in turn moves the engaging portion 92. The engaging portion 92 then disengages from the second internal gear 421 of the backrest fixing component 42, releasing the backrest 4, which can then be rotated and folded. The handle can also be folded by rotating the upper handle portion 112 of the handle 11 toward the lower handle portion 113. Finally, the entire stroller 100 can be rotated and folded to the state shown in FIG. 13.

[0041] As described above, the stroller 100 of the present invention has a frame folding mechanism 101, the handle 11, front legs 12 and rear legs 13 of the frame folding mechanism 101 are pivotally connected to the same axis, the front legs 12 are pivotally connected to the seat 2, and the interlocking part 3 is pivotally connected between the seat 2 and the handle 11, and the handle 11, front legs 12, seat 2 and interlocking part 3 form a planar link mechanism, so that the handle 11 and front legs 12 can be driven to rotate and fold in the direction of the rear legs 13, thereby rotating the seat 2 in conjunction with the mechanism to fold it. Therefore, the stroller 100 of the present invention can fold the frame 1 and seat 2 in conjunction with the mechanism, which is simple and convenient to operate and has wide applications. The stroller 100 of the present invention has a frame lock mechanism 102, which has a handle lock hole 114 in the handle 11 and front foot lock holes 123 in the front feet 12, and by engaging the frame deployment lock component 7 into the handle lock hole 114 and the front foot lock hole 123, the handle 11 and the front feet 12 are locked, and the handle 11 and the front feet 12 cannot be rotated in the direction of the rear feet 13 for folding, thereby realizing locking to the frame 1, and by driving the lock release drive mechanism 8 to slide the slide component 6 and the frame deployment lock component 7, the frame deployment lock component 7 comes out of the handle lock hole 114 and the front foot lock hole 123, releasing the frame 1 and allowing the handle 11 and the front feet 12 to be rotated in the direction of the rear feet 13 for folding, so the stroller 100 of the present invention can be locked and released to the frame 1, has a simple structure, and is low in production costs. The stroller 100 of the present invention has a backrest lock release mechanism 103, which is provided with a backrest lock component 9. When the backrest lock component 9 is engaged between the frame 1 and the backrest portion 4, the backrest is locked to the frame 1. The lock release drive mechanism 8 is connected to the backrest lock component 9. When the lock release drive mechanism 8 drives the backrest lock component 9 to slide, the backrest lock component 9 disengages from the backrest portion 4, releasing the backrest portion 4. The backrest portion 4 can then be rotated relative to the frame 1 and folded, resulting in a simple structure and low production costs.

[0042] The above disclosure is merely a preferred example of the present invention and cannot be used to limit the scope of the invention. Therefore, any equivalent modifications made in accordance with the claims of the present invention belong to the scope of the present invention. [Additional note 1] A frame folding mechanism (101) including a frame (1), a seat portion (2), and an interlocking part (3), The frame (1) includes a handle (11), front legs (12), and rear legs (13), and the handle (11), the front legs (12), and the rear legs (13) are pivotally connected to each other on the same axis to form a first rotation center (D1), the front legs (12) are pivotally connected to the seat (2) to form a second rotation center (D2), one end of the interlocking part (3) is pivotally connected to the seat (2) to form a third rotation center (D3), and the other end of the interlocking part (3) is pivotally connected to the handle (11) to form a fourth rotation center (D4), and the first rotation center (D1), the second rotation center (D2), the third rotation center (D3), and the fourth rotation center (D4) are distributed at intervals, and by rotating and folding the frame (1), the seat (2) is rotated and folded by the interlocking part (3). A frame folding mechanism (101) characterized by: [Additional note 2] A handle cover (111) is provided at one end of the handle (11), a front foot cover (121) is provided at one end of the front foot (12), and a rear foot cover (131) is provided at one end of the rear foot (13). The handle cover (111), the front foot cover (121), and the rear foot cover (131) are pivotally connected coaxially to form the first rotation center (D1). Item 1. A frame folding mechanism (101) according to item 1. [Additional note 3] The interlocking part (3) is pivotally connected to the handle cover (111) at a position offset from the first rotation center (D1). Item 2. A frame folding mechanism (101) according to item 2. [Additional note 4] The seat part (2) includes a seat folding drive part (21) and a seat body (22), one end of the seat folding drive part (21) is pivotally connected to the front foot (12), the other end of the seat folding drive part (21) is pivotally connected to the linking part (3), and the seat body (22) is fixedly connected to the seat folding drive part (21). Item 1. A frame folding mechanism (101) according to item 1. [Additional note 5] The seat folding drive component (21) includes a first folding drive part (211) and a second folding drive part (212) formed by bending and extending from one end of the first folding drive part (211), and the seat body (22) is connected to the first folding drive part (211) and the second folding drive part (212), respectively. 5. A frame folding mechanism (101) according to claim 4. [Additional note 6] The seat body (22) includes a front seat pipe portion (221) and a rear seat pipe portion (222), the front seat pipe portion (221) is connected between the first folding drive portion (211) and the second folding drive portion (212), and the front seat pipe portion (221) is pivotally connected to the rear seat pipe portion (222). 5. A frame folding mechanism (101) according to claim 4. [Additional note 7] The pivot connection axis between the seat folding driving part (21) and the interlocking part (3) is the same as the pivot connection axis between the rear seat tube part (222) and the front seat tube part (221). 7. A frame folding mechanism (101) according to claim 6. [Additional note 8] The rear seat tube portion (222) is pivotally connected to the rear foot (13) to form a fifth rotation center, and the fifth rotation center and the first rotation center (D1) are spaced apart from each other. 7. A frame folding mechanism (101) according to claim 6. [Additional note 9] The handle (11) includes an upper handle portion (112) and a lower handle portion (113), the upper handle portion (112) is pivotally connected to the lower handle portion (113), and the front foot (12), the rear foot (13), and the lower handle portion (113) are pivotally connected coaxially to form the first rotation center (D1). Item 1. A frame folding mechanism (101) according to item 1. [Additional Note 10] It further includes a backrest portion (4), The backrest portion (4) is pivotally connected to the seat portion (2). Item 1. A frame folding mechanism (101) according to item 1. [Additional Note 11] Further comprising a handrail portion (5), The handrail portion (5) is fixedly connected to the interlocking part (3). Item 1. A frame folding mechanism (101) according to item 1. [Additional Note 12] The rear legs (13) are located between the front legs (12) and the handle (11). Item 1. A frame folding mechanism (101) according to item 1. [Additional Note 13] The rear legs (13) are provided with elastic bosses (132), and the front legs (12) are provided with engagement grooves (122). By rotating the frame (1) to fold or unfold it, the elastic bosses (132) are engaged with the engagement grooves (122) or the elastic bosses (132) are disengaged from the engagement grooves (122). Item 1. A frame folding mechanism (101) according to item 1. [Additional Note 14] A stroller including the frame folding mechanism (101) according to any one of appended items 1 to 13, Wheels (14) are pivotally connected to the bottom of the front legs (12) and the bottom of the rear legs (13). A stroller characterized by: [Additional Note 15] A frame lock mechanism (102) including a frame (1), a slide component (6), a frame deployment lock component (7), and a lock release drive mechanism (8), The frame (1) includes a handle (11), front legs (12) and rear legs (13), the handle (11) is provided with a handle lock hole (114), the front legs (12) are provided with front leg lock holes (123), the slide part (6) is slidably provided in the rear legs (13), the frame deployment lock part (7) is provided in the slide part (6), the frame deployment lock part (7) is engaged with the handle lock hole (114) and the front leg lock hole (123), the lock release drive mechanism (8) is connected to the slide part (6), and when the lock release drive mechanism (8) drives the slide part (6) and the frame deployment lock part (7) to slide, the frame deployment lock part (7) is disengaged from the handle lock hole (114) and the front leg lock hole (123), thereby releasing the frame. A frame lock mechanism (102) characterized by: [Additional Note 16] The handle (11) is provided with a handle connection part (115), and the handle lock hole (114) is provided in the handle connection part (115). Item 16. A frame lock mechanism (102) according to item 15. [Additional Note 17] The front foot (12) is provided with a front foot connection part (124), and the front foot lock hole (123) is provided in the front foot connection part (124). Item 16. A frame lock mechanism (102) according to item 15. [Additional Note 18] The rear foot (13) is provided with a rear foot connection part (134), and a position limiting groove is provided in the rear foot connection part (134), and the frame deployment lock part (7) is provided so as to slidably pass through the position limiting groove. Item 16. A frame lock mechanism (102) according to item 15. [Additional Note 19] The lock release drive mechanism (8) includes a lock release drive part (81), which is slidably provided on the handle (11), and which is contact-connected to the slide part (6). When the lock release drive part (81) is driven to slide, the lock release drive part (81) pushes the slide part (6) to slide. Item 16. A frame lock mechanism (102) according to item 15. [Additional Note 20] The handle (11) is provided with a slide groove (116), and the lock release drive part (81) is provided slidably engaged in the slide groove (116). 20. A frame lock mechanism (102) according to claim 19. [Additional Note 21] The lock release drive mechanism (8) further includes a first pulling member (82), the lock release drive member (81) is provided with a first inclined surface (811), the slide member (6) is provided with a second inclined surface (61), the first inclined surface (811) is connected to the second inclined surface (61), and the first pulling member (82) is connected to the lock release drive member (81). The first pulling member (82) pulls the lock release drive member (81), thereby driving the slide member (6) and the frame deployment lock member (7) to slide. 20. A frame lock mechanism (102) according to claim 19. [Additional note 22] The lock release drive mechanism (8) further includes a lock release operation mechanism (83), the lock release operation mechanism (83) is provided on the handle (11), the first pulling part (82) is connected to the lock release operation mechanism (83), and the lock release operation mechanism (83) is operated to pull the first pulling part (82). 22. A frame lock mechanism (102) according to claim 21. [Additional Note 23] The device further includes a first elastic reset component (84) for resetting the frame deployment lock component (7), the first elastic reset component (84) being provided between one of the frame deployment lock component (7) and the slide component (6) and the rear foot (13). Item 16. A frame lock mechanism (102) according to item 15. [Additional note 24] The slide part (6) is provided with slot holes (62) through which the pivot connection shafts of the handle (11), the front legs (12) and the rear legs (13) pass. Item 16. A frame lock mechanism (102) according to item 15. [Additional note 25] A handle cover (111) is provided at one end of the handle (11), a front foot cover (121) is provided at one end of the front foot (12), and a rear foot cover (131) is provided at one end of the rear foot (13). The handle cover (111), the front foot cover (121), and the rear foot cover (131) are pivotally connected coaxially. Item 16. A frame lock mechanism (102) according to item 15. [Additional note 26] The rear leg cover (131) is located between the front leg cover (121) and the handle cover (111). Item 26. A frame lock mechanism (102) according to item 25. [Additional note 27] A decorative cover (125) is connected to the outside of the front leg cover (121). 27. A frame lock mechanism (102) according to claim 26. [Additional note 28] The frame lock mechanism (102) according to any one of appended items 15 to 27 is included. A stroller characterized by: [Additional note 29] The frame (1) includes front legs (12), rear legs (13), and a handle (11). The handle (11), the front legs (12), and the rear legs (13) are coaxially pivotally connected, and wheels (14) are pivotally connected to the bottoms of the front legs (12) and the rear legs (13). Item 29. The stroller according to item 28. [Additional note 30] A backrest lock / release mechanism including a frame (1), a backrest portion (4), a backrest locking component (9), and a lock / release driving mechanism (8), The backrest portion (4) is pivotally connected to the frame (1), the backrest locking member (9) is engaged between the frame (1) and the backrest portion (4), and the lock release driving mechanism (8) is connected to the backrest locking member (9). When the lock release driving mechanism (8) drives the backrest locking member (9) to slide, the backrest locking member (9) is disengaged from the backrest portion (4) and releases the backrest portion (4). A backrest lock release mechanism. [Additional Note 31] The frame (1) is provided with a positioning part (23), the backrest part (4) is pivotally connected to the positioning part (23), and the backrest locking part (9) is engaged between the positioning part (23) and the backrest part (4). 31. The backrest lock and release mechanism according to claim 30, [Additional note 32] A first internal gear (231) is provided inside the positioning component (23), a second internal gear (421) is provided inside the backrest portion (4), and an external gear (91) is provided on the backrest locking component (9), and the external gear (91) is engaged with and connected to the first internal gear (231) and the second internal gear (421), respectively. 32. The backrest lock and release mechanism according to claim 31, [Additional note 33] The backrest portion (4) includes a backrest body (41) and a backrest fixing part (42), the backrest body (41) is fixedly connected to the backrest fixing part (42), and the second internal gear (421) is provided inside the backrest fixing part (42). 33. The backrest lock and release mechanism according to claim 32, [Additional note 34] The pivot connection axis between the backrest portion (4) and the positioning part (23) passes through the backrest locking part (9). 32. The backrest lock and release mechanism according to claim 31, [Additional note 35] The frame (1) includes a seat portion (2), and the positioning component (23) is fixedly connected to the seat portion (2). 32. The backrest lock and release mechanism according to claim 31, [Additional note 36] The lock release drive mechanism (8) includes a backrest folding drive part (85), which is in contact with and connected to the backrest lock part (9). The backrest folding drive part (85) slides to push the backrest lock part (9), thereby moving the backrest lock part (9) and disengaging it from the backrest portion (4). 31. The backrest lock and release mechanism according to claim 30, [Additional note 37] The backrest folding drive part (85) is provided with a third inclined surface (851), and the backrest lock part (9) is in contact with and connected to the third inclined surface (851), so that the backrest folding drive part (85) can move the backrest lock part (9) by using the third inclined surface (851). 37. The backrest lock and release mechanism according to claim 36, [Additional note 38] The backrest locking component (9) includes an engaging portion (92) and a fixing portion (93), the engaging portion (92) is engaged between the frame (1) and the backrest portion (4), the engaging portion (92) is fixedly connected to the fixing portion (93), the backrest folding drive component (85) is provided between the engaging portion (92) and the fixing portion (93), and the fixing portion (93) is in contact with and connected to the third inclined surface (851). 38. The backrest lock and release mechanism according to claim 37, [Additional note 39] The lock release drive mechanism (8) further includes a second pulling part (86), which is connected to the backrest folding drive part (85) and can pull the backrest folding drive part (85). 37. The backrest lock and release mechanism according to claim 36, [Additional note 40] The lock release drive mechanism (8) further includes a lock release operation mechanism (83), which is provided on the handle (11) and used to release the frame (1), and which is connected to the second towing part (86), and which is operated to pull the second towing part (86). 40. The backrest lock and release mechanism according to claim 39, [Additional note 41] The seat back further includes a second elastic reset part (87) for resetting the back lock part (9), the second elastic reset part (87) being provided between the back lock part (9) and the frame (1). 31. The backrest lock and release mechanism according to claim 30, [Additional note 42] The backrest lock release mechanism according to any one of appended items 30 to 41 is included. A stroller characterized by: [Additional note 43] The frame (1) includes front legs (12), rear legs (13), and a handle (11). The handle (11), the front legs (12), and the rear legs (13) are coaxially pivotally connected, and wheels (14) are pivotally connected to the bottoms of the front legs (12) and the rear legs (13). 43. The stroller according to claim 42, [Additional note 44] A backrest lock / release mechanism including a frame (1), a backrest portion (4), a backrest locking component (9), and a lock / release driving mechanism (8), The backrest portion (4) is pivotally connected to the frame (1), the backrest locking member (9) is engaged between the frame (1) and the backrest portion (4), and the lock release driving mechanism (8) is connected to the backrest locking member (9). When the lock release driving mechanism (8) drives the backrest locking member (9) to slide, the backrest locking member (9) is disengaged from the backrest portion (4) and releases the backrest portion (4). A backrest lock release mechanism. [Additional note 45] The frame (1) is provided with a positioning part (23), the backrest part (4) is pivotally connected to the positioning part (23), and the backrest locking part (9) is engaged between the positioning part (23) and the backrest part (4). 45. The backrest lock and release mechanism according to claim 44, [Additional note 46] A first internal gear (231) is provided inside the positioning component (23), a second internal gear (421) is provided inside the backrest portion (4), and an external gear (91) is provided on the backrest locking component (9), and the external gear (91) is engaged with and connected to the first internal gear (231) and the second internal gear (421), respectively. 46. ​​The backrest lock and release mechanism according to claim 45, [Additional note 47] The backrest portion (4) includes a backrest body (41) and a backrest fixing part (42), the backrest body (41) is fixedly connected to the backrest fixing part (42), and the second internal gear (421) is provided inside the backrest fixing part (42). 47. The backrest lock and release mechanism according to claim 46, [Additional note 48] The pivot connection axis between the backrest portion (4) and the positioning part (23) passes through the backrest locking part (9). 46. ​​The backrest lock and release mechanism according to claim 45, [Additional note 49] The frame (1) includes a seat portion (2), and the positioning component (23) is fixedly connected to the seat portion (2). 46. ​​The backrest lock and release mechanism according to claim 45, [Additional Note 50] The lock release drive mechanism (8) includes a backrest folding drive part (85), which is in contact with and connected to the backrest lock part (9). The backrest folding drive part (85) slides to push the backrest lock part (9), thereby moving the backrest lock part (9) and disengaging it from the backrest portion (4). 45. The backrest lock and release mechanism according to claim 44, [Additional note 51] The backrest folding drive part (85) is provided with a third inclined surface (851), and the backrest lock part (9) is in contact with and connected to the third inclined surface (851), so that the backrest folding drive part (85) can move the backrest lock part (9) by using the third inclined surface (851). 51. The backrest lock and release mechanism according to claim 50, [Additional note 52] The backrest locking component (9) includes an engaging portion (92) and a fixing portion (93), the engaging portion (92) is engaged between the frame (1) and the backrest portion (4), the engaging portion (92) is fixedly connected to the fixing portion (93), the backrest folding drive component (85) is provided between the engaging portion (92) and the fixing portion (93), and the fixing portion (93) is in contact with and connected to the third inclined surface (851). 52. The backrest lock and release mechanism according to claim 51, [Additional note 53] The lock release drive mechanism (8) further includes a second pulling part (86), which is connected to the backrest folding drive part (85) and can pull the backrest folding drive part (85). 51. The backrest lock and release mechanism according to claim 50, [Additional note 54] The lock release drive mechanism (8) further includes a lock release operation mechanism (83), which is provided on the handle (11) of the frame (1) and is used to release the frame (1), and which is connected to the second towing part (86), and which is operated to pull the second towing part (86). Item 54. The backrest lock and release mechanism according to item 53. [Additional note 55] The seat back further includes a second elastic reset part (87) for resetting the back lock part (9), the second elastic reset part (87) being provided between the back lock part (9) and the frame (1). 45. The backrest lock and release mechanism according to claim 44, [Additional note 56] The backrest lock release mechanism according to any one of appended paragraphs 44 to 55 is included. A stroller characterized by:

Claims

1. A stroller (100) including a frame (1), a seat portion (2), a backrest portion (4), a frame folding mechanism (101), a frame locking mechanism (102), and a lock release drive mechanism (8), The seat portion (2) is mounted on the frame (1), and the backrest portion (4) is pivotally connected to the seat portion (2); The frame folding mechanism (101) is provided between the frame (1) and the seat portion (2), the frame locking mechanism (102) is provided in the frame (1) and is configured to lock or release the frame (1); the backrest lock release mechanism (103) is provided between the backrest portion (4) and the seat portion (2) for releasing the backrest portion (4); The lock release drive mechanism (8) is connected to the frame lock mechanism (102) and the backrest lock release mechanism (103), respectively; The lock release drive mechanism (8) drives the frame lock mechanism (102) to release the frame (1), and also drives the backrest lock release mechanism (103) to release the backrest (4), whereby the frame (1) and the seat (2) are folded in conjunction with each other via the frame folding mechanism (101), and the backrest (4) is rotated relative to the frame (1) to be folded. A stroller characterized by:

2. The frame folding mechanism (101) includes an interlocking part (3), The frame (1) includes a handle (11), front legs (12) and rear legs (13), the handle (11), the front legs (12) and the rear legs (13) are pivotally connected to one another, the front legs (12) are pivotally connected to the seat (2), one end of the interlocking part (3) is pivotally connected to the seat (2), and the other end of the interlocking part (3) is pivotally connected to the handle (11), and by rotating and folding the frame (1), the interlocking part (3) rotates and folds the seat (2).

2. The stroller according to claim 1 .

3. The seat part (2) includes a seat folding drive part (21) and a seat body (22), one end of the seat folding drive part (21) is pivotally connected to the front foot (12), the other end of the seat folding drive part (21) is pivotally connected to the interlocking part (3), and the seat body (22) is fixedly connected to the seat folding drive part (21).

3. The stroller according to claim 2.

4. The seat folding drive component (21) includes a first folding drive part (211) and a second folding drive part (212) formed by bending and extending from one end of the first folding drive part (211), and the seat body (22) is connected to the first folding drive part (211) and the second folding drive part (212), respectively.

4. The stroller according to claim 3.

5. The frame lock mechanism (102) includes a slide component (6) and a frame deployment lock component (7), The frame (1) includes a handle (11), front legs (12) and rear legs (13), the handle (11) is provided with a handle lock hole (114), the front legs (12) are provided with front leg lock holes (123), the slide part (6) is slidably provided within the rear legs (13), the frame deployment lock part (7) is provided on the slide part (6), the frame deployment lock part (7) is engaged with the handle lock hole (114) and the front leg lock hole (123), the lock release drive mechanism (8) is connected to the slide part (6), and when the lock release drive mechanism (8) drives the slide part (6) and the frame deployment lock part (7) to slide, the frame deployment lock part (7) is disengaged from the handle lock hole (114) and the front leg lock hole (123), thereby releasing the frame (1).

2. The stroller according to claim 1 .

6. The lock release drive mechanism (8) includes a lock release drive part (81), which is slidably provided on the handle (11), and which is contact-connected to the slide part (6). When the lock release drive part (81) is driven to slide, the lock release drive part (81) pushes the slide part (6) to slide.

6. The stroller according to claim 5.

7. The lock release drive mechanism (8) further includes a first pulling component (82), the lock release drive component (81) is provided with a first inclined surface (811), the slide component (6) is provided with a second inclined surface (61), the first inclined surface (811) is connected to the second inclined surface (61), and the first pulling component (82) is connected to the lock release drive component (81). The first pulling component (82) pulls the lock release drive component (81), thereby driving the slide component (6) and the frame deployment lock component (7) to slide.

7. The stroller according to claim 6.

8. The lock release drive mechanism (8) further includes a lock release operation mechanism (83), the lock release operation mechanism (83) is provided on the handle (11), the first pulling part (82) is connected to the lock release operation mechanism (83), and the lock release operation mechanism (83) is operated to pull the first pulling part (82).

8. The stroller according to claim 7.

9. The frame lock mechanism (102) further includes a first elastic reset part (84) for resetting the frame deployment lock part (7), and the first elastic reset part (84) is provided between one of the frame deployment lock part (7) and the slide part (6) and the rear foot (13).

6. The stroller according to claim 5.

10. The backrest lock release mechanism (103) includes a backrest locking element (9), The backrest locking component (9) is engaged between the frame (1) and the backrest portion (4), and the lock release driving mechanism (8) is connected to the backrest locking component (9). When the lock release driving mechanism (8) drives the backrest locking component (9) to slide, the backrest locking component (9) is disengaged from the backrest portion (4) and releases the backrest portion (4).

2. The stroller according to claim 1 .

11. The lock release drive mechanism (8) includes a backrest folding drive part (85), which is in contact with and connected to the backrest lock part (9). The backrest folding drive part (85) slides to push the backrest lock part (9), thereby moving the backrest lock part (9) out of engagement with the backrest portion (4).

11. The stroller according to claim 10.

12. The lock release drive mechanism (8) further includes a second pulling part (86), which is connected to the backrest folding drive part (85) and can pull the backrest folding drive part (85).

12. The stroller according to claim 11.

13. The lock release drive mechanism (8) further includes a lock release operating mechanism (83), which is provided on the handle (11) of the frame (1) and is used to release the frame (1), and the lock release operating mechanism (83) is connected to the second towing part (86), and the lock release operating mechanism (83) is operated to pull the second towing part (86).

13. The stroller according to claim 12.

14. The backrest lock release mechanism (103) further includes a second elastic reset component (87) for resetting the backrest lock component (9), and the second elastic reset component (87) is provided between the backrest lock component (9) and the frame (1).

11. The stroller according to claim 10.

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