CN213799857U - Portable folding movable trailer type children's carriage - Google Patents

Abstract

The invention relates to a portable folding mobile trailer type children's tricycle which comprises a stroller body sleeve, a chassis frame, wheel assemblies and a stroller body frame arranged on the chassis frame. The children's bassinet further comprises a damping assembly, a brake assembly arranged on the wheel assembly, and a connecting rod assembly, wherein one end of the connecting rod assembly is connected to the wheel assembly, and the other end of the connecting rod assembly is obliquely connected to the chassis frame. The shock absorption assembly is connected with the chassis frame and the connecting rod assembly and comprises an integrally formed elastic piece, and the elastic piece is provided with a shock absorption hole and elastically deforms under the pressure action of the chassis frame. The shock absorption assembly is used as a buffering energy absorption structural part through the integrally formed elastic part so as to reduce the installation height between the wheel assembly and the chassis frame, and the overall installation effect is good. Shock-absorbing component, link assembly and chassis underframe are triangular distribution, improve shock-absorbing component installation convenience and buffering energy-absorbing's shock attenuation effect.

Description

Portable folding movable trailer type children's carriage

Technical Field

The invention relates to the technical field of children's strollers, in particular to a portable folding movable trailer type children's strollers.

Background

The existing trailer type children's carriage comprises a frame, wheel assemblies and shock absorption assemblies for connecting the frame and the wheel assemblies, wherein the shock absorption assemblies adopt mechanisms such as compression springs or damping springs for shock absorption. However, the installation space required for the shock-absorbing assembly is large, resulting in an increase in the installation space between the vehicle frame and the wheel assembly, resulting in a large overall height of the vehicle frame, and poor operation stability during towing, and thus improvement is required.

Disclosure of Invention

The invention aims to provide a portable folding mobile trailer type children's carriage.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a portable folding removal trailer formula children's bassinet, including automobile body cover, chassis underframe, wheel subassembly and install in the automobile body frame of chassis underframe, children's bassinet still include damper, install in wheel subassembly's brake subassembly and one end connect in wheel subassembly's link assembly, link assembly's other end slope is connected to the chassis underframe, damper connects the chassis underframe with link assembly, damper includes integrated into one piece's elastic component, elastic component disposes the shock attenuation hole and is in elastic deformation under the pressure effect of chassis underframe, automobile body frame includes handrail portion, handrail portion is provided with the flexible cover.

In one embodiment, the extension direction of the shock absorbing hole is perpendicular or inclined relative to the pressure direction borne by the elastic member.

In one embodiment, the elastic member includes at least one reinforcing rib spaced apart from and distributed in the shock absorbing hole, and the extending direction of the reinforcing rib is parallel to the extending direction of the shock absorbing hole.

In one embodiment, the elastic member includes a main body portion, a support portion located at one end of the main body portion, and an anti-rotation portion located at the other end of the main body portion, the shock absorbing hole penetrates through the main body portion, the support portion includes a support surface matched with the chassis frame, and the anti-rotation portion is fixedly connected with the link assembly.

In one embodiment, the body portion includes a first tapered portion and a second tapered portion intersecting with the first tapered portion, the first tapered portion gradually decreases in cross-sectional width dimension in the direction of the support portion, and the second tapered portion gradually decreases in cross-sectional width dimension in the direction of the rotation preventing portion.

In one embodiment, the link assembly includes a first connecting frame detachably connected to the wheel assembly, a second connecting frame connected to the chassis frame, and an adjusting frame connecting the first connecting frame and the second connecting frame, and the elastic member is lockingly mounted to the first connecting frame and protrudes toward the chassis frame.

In an embodiment, the first connecting frame comprises a mounting seat connected to the wheel assembly through a clamping hoop and a rotating shaft pin mounted on the mounting seat, the mounting seat is provided with a limiting curved surface, at least part of the curvature center line of the limiting curved surface is relatively deviated, the rotating shaft pin is inserted into the elastic member, and the peripheral wall of the elastic member is attached to the limiting curved surface.

In one embodiment, the brake assembly includes install in the brake disc of wheel subassembly with install in the brake frame of link assembly, the brake disc rotates for the brake frame, the brake disc is including encircleing centre of rotation interval distribution's locking groove, the brake frame include with the relative sliding seat that sets up of brake disc and sliding connection in the stop pin of sliding seat, the locking groove is located the slip extending direction of stop pin.

In one embodiment, the vehicle body frame comprises a first support part rotatably connected to one end of the chassis frame, a second support part rotatably connected to the other end of the chassis frame, an adapter rod rotatably connected to the first support part, and a locking assembly mounted on the adapter rod and the locking assembly, wherein the second support part is connected to the locking assembly, and when the locking assembly is unlocked, the first support part, the adapter rod and the second support part are folded on the chassis frame.

In one embodiment, the cover includes a cover body covering the chassis frame and the body frame, and a light-transmitting portion disposed on the cover body, wherein the light-transmitting portion is made of a light-transmitting material and is located above the chassis frame.

The invention has the beneficial effects that: the shock absorption assembly is used as a buffering energy absorption structural part through the integrally formed elastic part so as to reduce the installation height between the wheel assembly and the chassis frame, and the overall installation effect is good. Shock-absorbing component, link assembly and chassis underframe are triangular distribution to make form stable connection structure, can have nimble deformation activity space again, improve shock-absorbing component installation convenience and buffering energy-absorbing's shock attenuation effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a perspective view of the child stroller of the present invention.

Fig. 2 is a perspective view of the stroller of the present invention with the body cover removed.

FIG. 3 is a perspective view of the shock absorbing assembly, the brake assembly and the linkage assembly of the present invention connected to a chassis frame.

FIG. 4 is an enlarged partial schematic view of the shock assembly and link assembly of the present invention attached to a chassis frame.

Fig. 5 is a schematic view of the structure of the elastic member in the present invention.

Figure 6 is a schematic view of the structure of the shock absorbing assembly of the present invention.

Figure 7 is a schematic structural view of the brake disc of the present invention.

In the figure: a body cover 10; a cover body 11; a light-transmitting portion 12; a chassis frame 20; a wheel assembly 30; damper wheels 31; an axle 32; a vehicle body frame 40; a first frame part 41; a second bracket portion 42; an adapter lever 43; a locking assembly 44; an armrest portion 45; the grab bar 451; a flexible sleeve 452; a shock absorbing assembly 50; an elastic member 501; a main body part 51; the first taper portion 511; a second taper portion 512; a support portion 52; a support surface 521; a rotation prevention section 53; an anti-rotation curved surface 531; a spindle bore 532; a shock absorbing hole 54; a reinforcing rib 55; a connecting rod assembly 60; a first link frame 61; a mount 611; a roller pin 612; a limit curved surface 613; a second connecting frame 62; an adjusting bracket 63; a first adjusting plate 631; a second adjusting plate 632; a locking member 633; a brake assembly 70; a brake frame 71; a movable seat 711; a locking pin 712; a brake disc 72; a locking slot 721; a front wheel assembly 80; a traction frame 90.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 4, the present invention discloses a portable folding mobile trailer type children's carriage, which comprises a body cover 10, a chassis frame 20, a wheel assembly 30 and a body frame 40 mounted to the chassis frame 20. The children's stroller further comprises a shock absorption assembly 50, a brake assembly 70 mounted on the wheel assembly 30, and a connecting rod assembly 60 with one end connected to the wheel assembly 30, wherein the other end of the connecting rod assembly 60 is connected to the chassis frame 20 in an inclined manner, the shock absorption assembly 50 is connected to the chassis frame 20 and the connecting rod assembly 60, and the shock absorption assembly 50, the connecting rod assembly 60 and the chassis frame 20 are distributed in a triangular manner. The shock absorbing assembly 50 includes an elastic member 501 integrally formed, and the elastic member 501 is provided with a shock absorbing hole 54 and elastically deformed by a pressure of the chassis frame 20.

The body frame 40 is mounted to the chassis frame 20 to constitute a frame type structure, and a storage space is formed between the body frame 40 and the chassis frame 20. The body cover 10 is connected to the body frame 40 and the chassis frame 20 so that the inner space of the frame is relatively closed to prevent rainwater, cold wind, etc. from flowing into the receiving space. Optionally, the body cover 10 includes a cover 11 that covers the chassis frame 20 and the body frame 40, and the cover 11 may be assembled from multiple parts to form a complete sunshade structure. For example, the cover 11 includes a pad portion laid on the chassis frame 20 and a shielding portion fixed to the body frame 40, and the shielding portion is disposed around the chassis frame 20. Optionally, the body cover 10 includes a light-transmitting portion 12 disposed on the cover 11, and the light-transmitting portion 12 is made of a light-transmitting material and is located above the chassis frame 20. The light-transmitting part 12 is connected with the shielding part to form a wind and rain shielding area, and meanwhile, the external environment can be conveniently observed from the inside of the storage space to the outside, so that the user experience is good. Alternatively, the transparent portion 12 is configured with a flexible thin-walled member such as a transparent film or a flexible transparent plastic, and the transparent portion 12 and the cover 11 are connected by a snap connection, a zipper connection, a button connection, or other connection methods.

The chassis frame 20 is erected above the wheel assembly 30, so that the wheel assembly 30 can drive the chassis frame 20 and the object above the chassis frame to move. The link assembly 60 is connected at one end to the chassis frame 20 and extends obliquely relative to the chassis frame 20 at the connection portion to be connected to the wheel assembly 30 such that an angle structure is formed between the link assembly 60 and the chassis frame 20. The shock absorbing assembly 50 is connected to the other end of the connecting rod assembly 60 and connected to the chassis frame 20, so that a buffer space of the shock absorbing assembly 50 is formed between the other end of the connecting rod assembly 60 and the chassis frame 20, and the elastic member 501 is located in an extending direction of an included angle formed between the connecting rod assembly 60 and the chassis frame 20.

The elastic member 501 is an integral structure capable of elastically deforming along the space between the chassis frame 20 and the wheel assembly 30, so that the impact force of the chassis frame 20 on the wheel assembly 30 is buffered and absorbed by the elastic member 501, thereby improving the stability of the chassis frame 20 during the operation of the child stroller. Accordingly, the impact caused by the wheel assembly 30 on the rough road is transmitted to the elastic member 501, and the elastic member 501 can be elastically deformed and absorb the impact energy to maintain the stable operation of the chassis frame 20. The elastic member 501 is a massive porous structure, and the deformation energy is diffused to the whole elastic member 501 through compression deformation, so that the whole deformation buffering is realized, the installation height can be reduced, and a good damping effect is realized.

As shown in fig. 3 to 5, the shock absorbing assembly 50 uses the integrally formed elastic member 501 as a structural member for buffering and absorbing energy, so as to reduce the installation height between the wheel assembly 30 and the chassis frame 20, and the overall installation effect is good. Shock-absorbing component 50, link assembly 60 and chassis underframe 20 are triangular distribution to make form stable connection structure, can have nimble deformation activity space again, improve shock-absorbing component 50 and install convenience and the shock attenuation effect of buffering energy-absorbing.

The elastic member 501 is a plate-shaped porous structure, and the shock absorbing holes 54 may be configured as a hole structure inside the elastic member 501, such as the shock absorbing holes 54 are configured as bubble-shaped spaces inside the elastic member 501, a hole structure penetrating through the elastic member 501, and the like. In one embodiment, the extension direction of the shock absorbing hole 54 is perpendicular or inclined with respect to the pressure direction received by the elastic member 501. The shock absorbing hole 54 penetrates the elastic member 501 so that the elastic member 501 constitutes an annular thin-walled member structure. The elastic member 501 is elastically bent toward the shock absorbing hole 54 after being stressed to absorb shock, and the shock absorbing effect is good. The damping holes 54 penetrate the elastic member 501, and the extending direction of the damping holes 54 is perpendicular to or inclined with respect to the pressing direction of the chassis frame 20 pressed against the elastic member 501, so that the elastic deformation direction and deformation amount of the elastic member 501 can be controlled, and the installation space of the elastic member 501 can be conveniently adjusted. Alternatively, the number of the shock absorbing holes 54 is set to be one or a plurality of shock absorbing holes distributed at intervals, and the shape of the shock absorbing holes 54 can be adaptively adjusted according to the shape and mechanical properties of the elastic member 501. For example, the damping hole 54 may be a circular hole, a long hole, a contour hole structure formed with a corresponding thickness offset from the edge of the rubber member, etc., the damping hole 54 may penetrate the main plane of the plate-shaped elastic member 501, and the side wall of the elastic member 501 may be supported by the chassis frame 20 and the link assembly 60.

In an embodiment, the elastic member 501 includes at least one reinforcing rib 55 spaced apart from and distributed in the shock absorbing hole 54, and the extending direction of the reinforcing rib 55 is parallel to the extending direction of the shock absorbing hole 54. The reinforcing ribs 55 are disposed in the shock absorbing holes 54 and partition the shock absorbing holes 54 to form different hole spaces. The reinforcing rib 55 is arranged in the detection hole to improve the elastic deformation strength of the elastic piece 501, and the elastic reset effect is good. Optionally, the reinforcing rib 55 is connected to the opposite side walls of the damping hole 54, so that the structural strength of the side walls of the elastic member 501 to which the reinforcing rib 55 is connected is enhanced, and the damping holes 54 on both sides of the reinforcing rib 55 form an effect similar to a bellows-shaped compression deformation effect, thereby realizing multi-section buffering energy absorption, reducing the structural size of the elastic member 501 in the compression deformation direction, and achieving a good energy absorption effect. Optionally, the hole wall direction of the damping hole 54 connected to the reinforcing rib 55 is perpendicular to the compression direction of the elastic member 501, so that the reinforcing rib 55 is pulled in the elastic deformation process of the elastic member 501 to provide a restoring force for the elastic restoration of the elastic member 501, and the restoring effect is good.

Optionally, the elastic member 501 includes two reinforcing ribs 55 spaced apart from each other in the shock absorbing hole 54, the two reinforcing ribs 55 are approximately symmetrical, and the shock absorbing hole 54 is spaced apart to form three hole areas. Optionally, the reinforcing ribs 55 equally divide the shock absorbing holes 54 to form the interval regions by dividing the shock absorbing holes 54, so as to improve the elastic deformation effect and the compressive strength of the elastic member 501. Optionally, the reinforcing rib 55 includes a first connecting portion and a second connecting portion connected to the hole wall, and a reinforcing portion connecting the first connecting portion and the second connecting portion, and the reinforcing portion is bent relative to the first connecting portion and the second connecting portion to enlarge the tensile strain strength of the reinforcing rib 55, and enable the reinforcing rib 55 to provide a pulling force for the hole wall of the damping hole 54, so that the resetting effect is good.

One end of the elastic member 501 is connected to the link assembly 60, and the other end is connected to or abutted against the chassis frame 20, and the shape of the elastic member 501 is adapted to connect the link assembly 60 and the chassis frame 20. The elastic member 501 includes a main body 51, a support 52 located at one end of the main body 51, and an anti-rotation part 53 located at the other end of the main body 51, and the damping hole 54 penetrates through the main body 51. The support portion 52 includes a support surface 521 for engaging with the chassis frame 20, and the rotation preventing portion 53 is fixedly connected to the link assembly 60.

The shock absorbing hole 54 is provided in the main body 51 to reduce the structural strength of the main body 51, so that the main body 51 constitutes a main elastic deformation region of the elastic member 501, and the elastic deformation region is controllable. The support portion 52 is disposed at one end of the body portion 51 to connect and support the chassis frame 20. Wherein, the holding surface 521 sets up to planar structure to the pressure surface of adaptation chassis underframe 20, area of contact is big, improves the homogeneity of elastic component 501 atress, makes the elastic deformation of main part 51 balanced then, and the shock attenuation is effectual.

In an embodiment, the main body 51 includes a first tapered portion 511 and a second tapered portion 512 intersecting with the first tapered portion 511, a cross-sectional width dimension of the first tapered portion 511 in a direction toward the support portion 52 is gradually reduced, and a cross-sectional width dimension of the second tapered portion 512 in a direction toward the rotation preventing portion 53 is gradually reduced. The body 51 is gradually reduced from the intersection of the first tapered portion 511 and the second tapered portion 512 toward both ends to form a three-dimensional buffer structure, reduce the installation space and the installation size, and further control the region where the body 51 is elastically deformed. For example, the main body 51 has a plate-like structure similar to a diamond structure, wherein the support portions 52 and the rotation preventing portions 53 are respectively located at opposite ends of the main body 51, the shock absorbing holes 54 penetrate the main body 51, and the extending direction of the shock absorbing holes 54 is parallel to the supporting surface 521. The shock absorbing hole 54 is a six-sided hole, and the reinforcing ribs 55 are connected to opposite sidewalls of the shock absorbing hole 54 and are approximately parallel to the supporting surface 521.

The rotation preventing portion 53 is located at the other end of the main body portion 51, and is configured to be mounted and connected to the link assembly 60, so that the elastic member 501 and the link assembly 60 are integrally connected. Alternatively, the rotation preventing portion 53 and the link assembly 60 are lockingly connected by a plurality of fasteners to fix the two as one body. If the elastic member 501 contains a coupling member such as a nut, the connecting rod assembly 60 is connected to the nut connected to the elastic member 501 by a bolt. Optionally, a part of the outer peripheral wall of the rotation preventing portion 53 and the connecting rod assembly 60 are mutually limited and connected through a fastener such as a pin or a bolt to form a fixed connection therebetween, so that the connection strength is high and the rotation preventing effect of the elastic member 501 is good. For example, the end wall of the rotation preventing portion 53 is provided with a rotation preventing curved surface 531, and the rotation preventing curved surface 531 is provided with curved surfaces having different radii of curvature of at least a part of the curved surfaces so as to form a non-circular curved surface. The anti-rotation curved surface 531 is attached to the surface of the connecting rod assembly 60 so that the two are used in cooperation.

As shown in fig. 3 and 4, the link assembly 60 includes a first connecting frame 61 detachably connected to the wheel assembly 30, and the elastic member 501 is lockingly mounted to the first connecting frame 61 and protrudes toward the chassis frame 20. The first connecting frame 61 includes a mounting seat 611 connected to the wheel assembly 30 by a clamp, and a rotating shaft pin 612 mounted on the mounting seat 611, wherein the mounting seat 611 is provided with a limiting curved surface 613, and a curvature center line of at least a part of the limiting curved surface 613 is relatively deviated. The rotating shaft pin 612 is inserted into the elastic member 501, and an outer peripheral wall of the elastic member 501 fits the limiting curved surface 613.

The anti-rotation curved surface 531 and the limit curved surface 613 are engaged with each other, and they form a mutually-defined engagement surface structure to prevent the elastic member 501 from rotating relative to the mounting seat 611, so that the assembly angle is fixed. The pivot pin 612 is inserted into the elastic member 501 to prevent the anti-rotation curved surface 531 from separating from the limit curved surface 613, so that the assembly of the elastic member 501 is stable. Optionally, the elastic member 501 includes a through rotating shaft hole 532, and the rotating shaft hole 532 is matched with the rotating shaft pin 612 to achieve assembly and fixation of the two, so that the connection effect is good.

As shown in fig. 1 and 2, the wheel assembly 30 includes an axle 32 and shock-absorbing wheels 31 rotatably connected to both ends of the axle 32, the shock-absorbing wheels 31 are used for supporting and moving the entire stroller forward, and the axle 32 is used for supporting and connecting the chassis frame 20 and the shock-absorbing assembly 50. The first link frame 61 is fixedly connected to the axle 32 such that the link assembly 60 connects the axle 32 with the chassis frame 20. Alternatively, the axle 32 is configured in a cylindrical configuration. Alternatively, the mounting seat 611 includes an upper seat and a lower seat, which are clamped to the axle 32, and the elastic member 501 is connected to the upper seat. Optionally, the upper base includes a first rib plate and a second rib plate opposite to the first rib plate, a limiting groove is formed between the first rib plate and the second rib plate, the elastic member 501 is limited in the limiting groove, and the limiting curved surface 613 is located at the bottom of the limiting groove. The upper base defines the movable range of the elastic member 501 to further limit the elastic deformation of the elastic member 501.

Wherein the mounting seat 611 is coupled to the axle 32 by a clamp to adjust the tilt angle of the link assembly 60 relative to the chassis frame 20. In one embodiment, the link assembly 60 further includes a second connecting frame 62 connected to the chassis frame 20, and an adjusting frame 63 connecting the first connecting frame 61 and the second connecting frame 62, wherein the adjusting frame 63 is used for adjusting the distance between the first connecting frame 61 and the second connecting frame 62, and thus the distance between the axle 32 and the chassis frame 20. The second connecting frame 62 is fixed to the chassis frame 20 and is far away from the first connecting frame 61, wherein the distance between the first connecting frame 61 and the second connecting frame 62 is adjusted by the adjusting frame 63. Optionally, the adjusting frame 63 includes a first adjusting plate 631 fixedly connected to the first connecting frame 61, a second adjusting plate 632 fixedly connected to the second connecting frame 62, and a locking member 633 for connecting the first adjusting plate 631 and the second adjusting plate 632, at least one of the first adjusting plate 631 and the second adjusting plate 632 is provided with a long slot, and the locking member 633 passes through the long slot and locks the first adjusting plate 631 and the second adjusting plate 632 into a whole, so as to lock the distance between the first connecting frame 61 and the second connecting frame 62.

As shown in fig. 2, 6 and 7, the brake assembly 70 is used to lock the rotation of the damper wheel 31 so that the damper wheel 31 cannot rotate, thereby facilitating transportation and handling. In one embodiment, the brake assembly 70 includes a brake disc 72 mounted to the wheel assembly 30 and a brake frame 71 mounted to the linkage assembly 60, the brake disc 72 rotating relative to the brake frame 71, the brake disc 72 including locking slots 721 spaced about a center of rotation. The brake frame 71 includes a movable seat 711 disposed opposite to the brake disc 72 and a locking pin 712 slidably connected to the movable seat 711, and the locking slot 721 is located in a sliding extending direction of the locking pin 712. The brake disc 72 is mounted on the damper wheel 31 and can rotate together with the damper wheel 31, and the locking grooves 721 are distributed on the brake disc 72 at intervals and are uniformly distributed relative to the rotation center line of the damper wheel 31. The locking groove 721 distributes the brake disc 72 at intervals, so that the brake disc 72 can be locked by the locking pin 712 at any angle, and the locking pin 712 and the locking groove 721 are in inductive connection in a splicing fit, so that the damping wheel 31 can be locked accurately and reliably, the damping wheel 31 is prevented from rotating, and the locking effect is good.

Alternatively, the movable seat 711 is mounted to the mounting seat 611 such that the free end of the locking pin 712 faces in the direction of the brake disc 72. The center line of the locking pin 712 is parallel to or inclined with the rotation axis of the damper wheel 31, and the locking groove 721 is located in the extending direction of the locking pin 712, so that the locking pin 712 can be inserted into the locking groove 721 after penetrating out of the movable seat 711, so as to lock the damper wheel 31 with the first connecting frame 61.

Alternatively, the locking groove 721 extends from the outer circumferential wall of the disc 72 in a radial direction toward the center of the disc 72 to constitute a notch-shaped groove structure. Accordingly, the locking slot 721 distributed on the brake disc 72 is configured to approximate a gear structure for easy assembly and locking of the locking pin 712, and convenient operation.

In one embodiment, the body frame 40 includes a first frame portion 41 rotatably connected to one end of the chassis frame 20, a second frame portion 42 rotatably connected to the other end of the chassis frame 20, an adapter rod 43 rotatably connected to the first frame portion 41, and a locking assembly 44 mounted on the adapter rod 43, wherein the second frame portion 42 is connected to the locking assembly 44. When the locking assembly 44 is unlocked, the first frame portion 41, the adapting rod 43 and the second frame portion 42 are folded on the chassis frame 20.

The body frame 40 is connected to the upper side of the chassis frame 20, and the body frame 40 is formed by a plurality of pipes in a staggered connection type frame structure. The first frame portion 41 is formed by connecting first pipes symmetrically distributed, the first pipes are of a bent structure, one end of the first pipe is rotatably connected with the front end of the chassis frame 20, and the adapter rod 43 is rotatably connected with the first pipe and far away from the chassis frame 20. The second bracket part 42 is formed by connecting second pipes distributed symmetrically, and one end of the second pipe is rotatably connected with the rear end of the chassis frame 20. The adapter rod 43 is in locking connection with the second tubing by means of a locking assembly 44. When the locking assembly 44 is unlocked, the adapter rod 43 rotates to fit or draw close to the first pipe and draw close to the chassis frame 20 along with the first pipe. The second bracket part 42 rotates relative to the chassis frame 20, so that the second bracket part fits to the chassis frame 20 to form a folded state, the overall size is reduced, and the carrying is convenient.

The stroller further includes a front wheel assembly 80 mounted to the chassis frame 20, the front wheel assembly 80 being spaced from the wheel assembly 30. Optionally, the body frame 40 further includes a grab rail portion 45 mounted to the first frame portion 41, the grab rail portion 45 including a curved grab bar 451 and a flexible sleeve 452 fitted over the grab bar 451. The armrest portion 45 can push the stroller forward and the flexible sleeve 452 can improve the user's hand-pushing experience. The flexible sleeve 452 is made of a flexible material such as rubber, nylon, plastic, etc.

Optionally, the stroller further comprises a traction frame 90 and a connection frame mounted to the chassis frame 20, wherein one end of the traction frame 90 is connected to the connection frame in a plugging manner and locked to the connection frame by a locking member. Wherein, the locking piece is connected with the connecting frame in a spiral or plug-in connection mode. Optionally, the hitch frame is removably coupled to the chassis frame 20 to enable the hitch frame 90 to be removed from the chassis frame 20 as a unit. Or the traction frame 90 is pulled out from the connecting frame, so that the children's bassinet is convenient to store and transport.

It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims (10)

1. The utility model provides a portable folding removal trailer formula children's bassinet, include automobile body cover, chassis underframe, wheel subassembly and install in the automobile body frame of chassis underframe, its characterized in that, children's bassinet still include shock attenuation subassembly, install in wheel subassembly's brake subassembly and one end connect in the link assembly of wheel subassembly, link assembly's other end slope is connected to the chassis underframe, shock attenuation subassembly connects the chassis underframe with link assembly, shock attenuation subassembly includes integrated into one piece's elastic component, the elastic component dispose the shock attenuation hole and under chassis underframe's pressure effect elastic deformation, the automobile body frame includes handrail portion, handrail portion is provided with flexible cover.

2. A stroller according to claim 1, wherein the shock absorbing hole extends in a direction perpendicular or inclined to a direction of the pressure applied to the elastic member.

3. A stroller according to claim 2, wherein the resilient member comprises at least one rib spaced apart from the shock absorbing hole, and the rib extends in a direction parallel to the shock absorbing hole.

4. A stroller according to claim 2, wherein the elastic member comprises a main body, a support part at one end of the main body, and a rotation preventing part at the other end of the main body, the shock absorbing hole penetrates through the main body, the support part comprises a support surface of the chassis frame, and the rotation preventing part is fixedly connected to the link assembly.

5. A stroller according to claim 4, wherein the main body portion comprises a first tapered portion and a second tapered portion intersecting with the first tapered portion, the first tapered portion having a cross-sectional width dimension gradually decreasing in a direction toward the support portion, and the second tapered portion having a cross-sectional width dimension gradually decreasing in a direction toward the rotation preventing portion.

6. A stroller according to claim 1, wherein the link assembly comprises a first connecting frame detachably connected to the wheel assembly, a second connecting frame connected to the chassis frame, and an adjusting frame connecting the first connecting frame and the second connecting frame, and the elastic member is locked to the first connecting frame and protrudes toward the chassis frame.

7. A stroller according to claim 6, wherein the first connecting frame comprises a mounting base connected to the wheel assembly by a clip and a pivot pin mounted on the mounting base, the mounting base is configured with a curved limiting surface, the center line of curvature of at least a part of the curved limiting surface is offset relatively, the pivot pin is inserted and connected to the elastic member, and the peripheral wall of the elastic member is fitted to the curved limiting surface.

8. A stroller according to claim 1, wherein the brake assembly comprises a brake disc mounted to the wheel assembly and a brake frame mounted to the link assembly, the brake disc being rotatable relative to the brake frame, the brake disc comprising locking slots spaced around a center of rotation, the brake frame comprising a movable seat disposed opposite the brake disc and a locking pin slidably connected to the movable seat, the locking slots being located in a sliding extension of the locking pin.

9. A stroller according to claim 1, wherein the body frame comprises a first frame portion rotatably connected to one end of the chassis frame, a second frame portion rotatably connected to the other end of the chassis frame, an adapter rod rotatably connected to the first frame portion, and a locking assembly mounted to the adapter rod and the locking assembly, the second frame portion being connected to the locking assembly, wherein the first frame portion, the adapter rod and the second frame portion are folded onto the chassis frame when the locking assembly is unlocked.

10. A stroller according to claim 1, wherein the body cover comprises a cover body covering the chassis frame and the body frame, and a light-transmitting portion disposed on the cover body, the light-transmitting portion being made of a light-transmitting material and located above the chassis frame.

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