阅读说明：本技术 一种可拓展的婴儿车 (Baby carriage capable of being expanded ) 是由 毛方应 王建 于 2021-01-04 设计创作，主要内容包括：本发明公开了一种可拓展的婴儿车,属于婴儿车技术领域,包括车架,以及车架底部具有的带刹滚轮,所述车架侧部设置的推把,所述车架上方设置有车座架,所述车座架通过升降机构安装在车架表面,所述车座架包括固定车座架和活动车座架,活动车座架包括前护栏、后护栏和活动支撑杆,所述前护栏底部与活动支撑杆顶部铰接连接,所述活动支撑杆铰接安装在固定车座架上,所述后护栏固设在固定车座架顶部一侧,所述前护栏可收缩地与后护栏连接,本发明的婴儿车可以适用于不同年龄段的孩童乘坐,婴儿的脚部可以放置在车架的前侧表面,提高了适用性,便于拓展后的使用；通过升降机构调节高度,期且调节升降安全且平稳,结构紧凑,并且调节趋于精细。(The invention discloses a baby carriage capable of being expanded, which belongs to the technical field of baby carriages and comprises a carriage frame, and a rolling wheel with a brake arranged at the bottom of the frame, a push handle arranged at the side part of the frame, a seat frame arranged above the frame, the carriage frame is arranged on the surface of the carriage through a lifting mechanism, the carriage frame comprises a fixed carriage frame and a movable carriage frame, the movable carriage frame comprises a front guardrail, a rear guardrail and a movable supporting rod, the bottom of the front guardrail is hinged with the top of the movable support rod, the movable support rod is hinged and installed on the fixed saddle frame, the rear guardrail is fixedly arranged on one side of the top of the fixed seat frame, and the front guardrail is connected with the rear guardrail in a retractable manner, so that the baby carriage can be suitable for children of different ages to sit, the feet of the baby can be placed on the front side surface of the frame, the applicability is improved, and the use after expansion is facilitated; the height is adjusted through the lifting mechanism, the lifting is adjusted safely and stably, the structure is compact, and the adjustment tends to be fine.)

1. The utility model provides a perambulator that can expand, includes frame (1) to and the area that frame (1) bottom has gyro wheel (2) of stopping, what frame (1) lateral part set up pushes away handle (3), frame (1) top is provided with saddle frame, its characterized in that, saddle frame passes through elevating system and installs on frame (1) surface, saddle frame includes fixed saddle frame (4) and activity saddle frame, and the activity saddle frame includes preceding guardrail (5), back guardrail (6) and movable support pole (7), preceding guardrail (5) bottom is connected with movable support pole (7) top is articulated, movable support pole (7) are articulated to be installed on fixed saddle frame (4), back guardrail (6) set firmly in fixed saddle frame (4) top one side, preceding guardrail (5) are connected with back guardrail (6) contractibly.

2. The expandable baby carriage as claimed in claim 1, wherein a cylindrical cavity (10) is formed in the outer wall of the front guardrail (5), a connecting bump (12) is arranged at the top of the cylindrical cavity (10), the connecting bump (12) can partially slide out of the cylindrical cavity (10) and is matched with a containing groove (13) formed in the side wall of the rear guardrail (6), a return spring (11) is connected between the connecting bump (12) and the bottom of the cylindrical cavity (10), a limiting retainer ring for limiting the bottom of the connecting bump (12) is further arranged on the side wall of the cylindrical cavity (10), the containing groove (13) is provided with a plurality of containing grooves (13) which are uniformly and intermittently formed in the outer side of the rear guardrail (6), and a T-shaped push rod (14) is further slidably connected to the outer side of the containing groove (13).

3. An expandable baby carriage as claimed in claim 2, wherein the lifting mechanism comprises two lifting support plates (15) disposed in parallel up and down, one of the lifting support plates (15) is fixed at the bottom of the carriage frame, the other lifting support plate (15) is fixed on the surface of the carriage (1), a first hinge rod (16) and a second hinge rod (17) are hinged between the two lifting support plates (15) in a crossing manner, the top end of the first hinge rod (16) is hinged with one side of the upper lifting support plate (15), the bottom end of the second hinge rod (17) is hinged with one side of the lower lifting support plate (15), the top end of the second hinge rod (17) is hinged with a second sliding seat (23), the second sliding seat (23) is slidably clamped in the sliding rail (18) on the side wall of the upper lifting support plate (15), the bottom end of the lifting support plate (15) is hinged with a first sliding seat (19), first slide (19) slip card is established in slide rail (18) of below lift backup pad (15) lateral wall, fixed mounting has lead screw (20) on first slide (19), the screw thread portion cooperation spiro union of lead screw (20) one side has worm wheel (21), worm wheel (21) and worm (22) meshing cooperation, worm (22) rotate install in installing frame (8) inboard and through rocking handle (9) drive rotation.

4. A pushchair according to claim 3, wherein the bottom of the movable support bar (7) is provided with locking screws at the hinged position to the fixed frame (4).

5. A rollable stroller according to claim 3, wherein the sliding connection between the first (19) and second (23) carriages and the respective slide rails (18) is concave in cross-section.

6. A stroller according to claim 3, wherein the handle of the rocking handle (9) is provided with an anti-slip cover.

7. A pushchair according to claim 1, wherein the front ends of the frame (1) are provided with protective guards near the braking rollers (2).

Technical Field

The invention relates to the technical field of a baby carriage, in particular to a baby carriage capable of being expanded.

Background

The baby carriage is an indispensable article for every family with children, when parents go out, parents put children in the crib of the baby carriage to push to accompany, the existing baby carriage is inconvenient to expand and cannot be suitable for taking of the babies in different periods of growth, and the space is inconvenient to expand when pushing to accompany.

Disclosure of Invention

The present invention is directed to a stroller that can be expanded to solve the above-mentioned problems of the prior art.

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

the utility model provides a perambulator that can expand, includes the frame to and the area that the frame bottom has the gyro wheel of stopping, what the frame lateral part set up pushes away the handle, the frame top is provided with the saddle frame, the saddle frame passes through elevating system and installs on the frame surface, the saddle frame includes fixed saddle frame and activity saddle frame, and the activity saddle frame includes preceding guardrail, rear guardrail and movable support pole, preceding guardrail bottom is connected with movable support pole top is articulated, movable support pole is articulated to be installed on fixed saddle frame, the rear guardrail sets firmly in fixed saddle frame top one side, preceding guardrail is connected with the rear guardrail contractibly.

As a further scheme of the invention: the cylinder chamber has been seted up to preceding guardrail outer wall, cylinder chamber top is provided with the connection lug, but the connection lug partial slip stretch out the cylinder chamber and with offer the holding tank cooperation in the rear guardrail lateral wall, be connected with reset spring between connection lug and the cylinder chamber bottom, the lateral wall in cylinder chamber still is equipped with the spacing retaining ring to connecting lug bottom spacing, the holding tank is provided with a plurality ofly, and is a plurality of the outside at the rear guardrail is seted up to even and interval of holding tank, there is T shape push rod holding tank outside still sliding connection.

As a still further scheme of the invention: the lifting mechanism comprises two lifting support plates which are arranged in parallel up and down, wherein one lifting support plate is fixed at the bottom of the carriage frame, the other lifting support plate is fixedly arranged on the surface of the carriage frame, a first hinge rod and a second hinge rod are hinged between the two lifting support plates in a crossed manner, the top end of the first hinge rod is hinged with one side of the lifting support plate above, the bottom end of the second hinge rod is hinged with one side of the lifting support plate below, the top end of the second hinge rod is hinged with a second sliding seat, the second sliding seat is slidably clamped in a sliding rail on the side wall of the lifting support plate above, the bottom end of the lifting support plate is hinged with a first sliding seat, the first sliding seat is slidably clamped in the sliding rail on the side wall of the lifting support plate below, a lead screw is fixedly arranged on the first sliding seat, a worm wheel is screwed on the threaded part on, the worm rotates and is installed in the inboard and through the rocking handle drive rotation of installing frame.

As a still further scheme of the invention: and a locking screw is arranged at the hinged position of the bottom of the movable supporting rod and the fixed saddle frame.

As a still further scheme of the invention: the sections of the sliding connection parts of the first sliding seat and the second sliding seat and the respective sliding rails are concave.

As a still further scheme of the invention: and an anti-slip sleeve is arranged on the handle of the rocking handle.

As a still further scheme of the invention: and protective baffles are arranged at the two ends of the front side of the frame and close to the positions of the rollers with brakes.

Compared with the prior art, the invention has the beneficial effects that: the front guardrail and the rear guardrail jointly form protection for infants, the front guardrail is telescopically arranged in the rear guardrail and matched with the lifting mechanism, requirements for expansion of the infant after different periods of growth can be met, the baby carriage can be suitable for children of different ages to take, requirements for different sizes of spaces formed by the infant for the guardrail door in different seasons can be met through the telescopic effect of the front guardrail, the feet of the infant can be placed on the front side surface of the frame, the applicability is improved, and the use after expansion is facilitated; through elevating system height-adjusting, make the lift safe through worm wheel and worm complex auto-lock nature, still can adjust at the in-process that promotes the perambulator, and worm wheel and worm transmission and the screw drive of lead screw for the lift tends towards more steadily, and compact structure utilizes auto-lock nature to realize safe regulation, and utilizes the lead screw to make the regulation more meticulous.

Drawings

Fig. 1 is a schematic side view of a deployable stroller.

Fig. 2 is a schematic view showing the fitting structure of the front guard rail and the rear guard rail of the expandable stroller.

Fig. 3 is a top view of a portion of a lift mechanism in a deployable stroller.

Fig. 4 is a schematic view of the worm wheel and worm gear of a deployable stroller.

Figure 5 is an isometric view of a first carriage in a deployable stroller.

In the figure: 1. a frame; 2. a belt brake roller; 3. a push handle; 4. fixing a saddle frame; 5. a front guardrail; 6. a rear guardrail; 7. a movable support rod; 8. installing a frame; 9. a rocking handle; 10. a cylindrical cavity; 11. a return spring; 12. a connection bump; 13. accommodating grooves; a T-shaped push rod; 15. lifting the supporting plate; 16. a first hinge rod; 17. a second hinge rod; 18. a slide rail; 19. a first slider; 20. a screw rod; 21. a worm gear; 22. a worm; 23. a second carriage.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Referring to fig. 1 to 5, in the embodiment of the invention, a baby carriage capable of being expanded comprises a carriage 1 and a roller 2 with a brake, which is arranged at the bottom of the carriage 1, a push handle 3 is arranged at the side part of the carriage 1, a carriage frame is arranged above the carriage 1, the carriage frame is arranged on the surface of the carriage 1 through a lifting mechanism, the carriage frame comprises a fixed carriage frame 4 and a movable carriage frame, the movable carriage frame comprises a front guardrail 5, a rear guardrail 6 and a movable support rod 7, the bottom of the front guardrail 5 is hinged to the top of the movable support rod 7, the movable support rod 7 is hinged to the fixed carriage frame 4, the rear guardrail 6 is fixedly arranged on one side of the top of the fixed carriage frame 4, and the front guardrail 5 is connected with the rear guardrail 6 in a retractable manner.

In the embodiment, a baby sits on the inner side of the front guardrail 5, the front guardrail 5 and the rear guardrail 6 jointly form protection for the baby, the front guardrail 5 is telescopically arranged in the rear guardrail 6, and the lifting mechanism is matched with the requirement of the baby on expansion of the baby carriage after the baby grows in different periods, and the baby carriage can be suitable for children in different age groups to take, the requirements of different sizes of the guardrails formed by the front guardrail 5 and the rear guardrail 6 for how much the baby wears clothes in different seasons can be met through the telescopic of the front guardrail 5, the feet of the baby can be placed on the front side surface of the frame 1, the taking requirement is met through the lifting mechanism, the applicability is improved, and the use after expansion is convenient;

referring to fig. 1 to 5, as another preferred embodiment of the present invention, a cylindrical cavity 10 is formed in an outer wall of the front guardrail 5, a connection protrusion 12 is disposed at a top of the cylindrical cavity 10, the connection protrusion 12 can partially extend out of the cylindrical cavity 10 in a sliding manner and is matched with an accommodation groove 13 formed in a side wall of the rear guardrail 6, a return spring 11 is connected between the connection protrusion 12 and a bottom of the cylindrical cavity 10, a limit stop ring for limiting a bottom of the connection protrusion 12 is further disposed on the side wall of the cylindrical cavity 10, a plurality of accommodation grooves 13 are disposed, the accommodation grooves 13 are uniformly and intermittently formed in an outer side of the rear guardrail 6, and a T-shaped push rod 14 is further slidably connected to an outer side of the accommodation groove.

In this embodiment, through can be in the part entering first hinge arm 16 of lift backup pad 15 with lift backup pad 15 toward interior hard, the inboard of getting into holding tank 13 through connecting lug 12 can make lift backup pad 15 installation fixed, holding tank 13 that sets up when through a plurality of interval can enlarge accommodation range, make the baby that is applicable to different age brackets grow up and take the demand, can make to make through spacing retaining ring and can not make connecting lug 12 pull out holding tank 13, safety in utilization, utilize T shape push rod 14's setting to make connecting lug 12 break away from holding tank 13 smoothly simultaneously, it is convenient to adjust.

Referring to fig. 1 to 5, as another preferred embodiment of the present invention, the lifting mechanism includes two lifting support plates 15 disposed in parallel up and down, one of the lifting support plates 15 is fixed at the bottom of the seat frame, the other lifting support plate 15 is fixed on the surface of the vehicle frame 1, a first hinge rod 16 and a second hinge rod 17 are hinged between the two lifting support plates 15 in a crossing manner, the top end of the first hinge rod 16 is hinged to one side of the upper lifting support plate 15, the bottom end of the second hinge rod 17 is hinged to one side of the lower lifting support plate 15, the top end of the second hinge rod 17 is hinged to a second sliding seat 23, the second sliding seat 23 is slidably engaged in the sliding rail 18 on the side wall of the upper lifting support plate 15, the bottom end of the lifting support plate 15 is hinged to a first sliding seat 19, the first sliding seat 19 is slidably engaged in the sliding rail 18 on the side wall of the lower lifting support, the first slide 19 is fixedly provided with a screw rod 20, a worm wheel 21 is screwed on the threaded portion on one side of the screw rod 20, the worm wheel 21 is meshed with a worm 22, and the worm 22 is rotatably arranged on the inner side of the mounting frame 8 and is driven to rotate through a rocking handle 9.

In the embodiment, the rocking handle 9 is shaken to enable the worm 22 to rotate, and then the worm 22 drives the worm wheel 21 to rotate, the worm 22 is internally provided with internal threads, the worm wheel 21 can only rotate at a fixed position along the axial direction of the screw rod 20 due to the meshing action of the worm wheel 21 and the worm 22, the screw connection of the worm wheel 21 and the screw rod 20 allows the first slide 19 to slide along the slide rail 18 under the driving action of the screw rod 20, the height can be further adjusted through the lifting mechanism, the lifting is safe through the self-locking property of the matching of the worm wheel 21 and the worm 22 and the self-locking property of the threaded connection, still can safely adjust in the in-process that promotes perambulator, and worm wheel 21 and worm 22 transmission and the screw thread transmission of lead screw 20 make the lift more tend to steadily compared with general lead screw thread transmission, compact structure, have the auto-lock nature, can realize meticulous fine adjustment.

Referring to fig. 1 to 5, as another preferred embodiment of the present invention, a locking screw is disposed at a hinged position of the bottom of the movable supporting rod 7 and the fixed seat frame 4.

In this embodiment, through locking screw to adjusting 5 shrink back of front guardrail locking, promote the security.

Referring to fig. 5, as another preferred embodiment of the present invention, the sections of the sliding connection positions of the first slide 19 and the second slide 23 with the respective slide rails 18 are concave.

In this embodiment, the concave arrangement is more conducive to smooth sliding.

Referring to fig. 1 and 4, as another preferred embodiment of the present invention, an anti-slip sleeve is disposed on the handle of the rocking handle 9.

In this embodiment, play anti-skidding effect of rotation through anti-skidding cover.

Referring to fig. 1, as another preferred embodiment of the present invention, protective barriers are disposed at two ends of the front side of the frame 1 and near the belt brake roller 2, and the protective barriers prevent the feet of the infant from contacting the belt brake roller 2.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.