WO2017107506A1 - Poussette pour bébé et mécanisme rétractable associé, et procédé de rétraction et de pliage de poussette pour bébé - Google Patents

Poussette pour bébé et mécanisme rétractable associé, et procédé de rétraction et de pliage de poussette pour bébé Download PDF

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Publication number
WO2017107506A1
WO2017107506A1 PCT/CN2016/095072 CN2016095072W WO2017107506A1 WO 2017107506 A1 WO2017107506 A1 WO 2017107506A1 CN 2016095072 W CN2016095072 W CN 2016095072W WO 2017107506 A1 WO2017107506 A1 WO 2017107506A1
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WO
WIPO (PCT)
Prior art keywords
bar
pusher
lever
push
locking
Prior art date
Application number
PCT/CN2016/095072
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English (en)
Chinese (zh)
Inventor
赵国松
Original Assignee
浙江晨辉婴宝儿童用品有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201521097733.8U external-priority patent/CN205327138U/zh
Priority claimed from CN201521096372.5U external-priority patent/CN205327137U/zh
Priority claimed from CN201610381976.7A external-priority patent/CN106428179B/zh
Application filed by 浙江晨辉婴宝儿童用品有限公司 filed Critical 浙江晨辉婴宝儿童用品有限公司
Publication of WO2017107506A1 publication Critical patent/WO2017107506A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable

Definitions

  • the invention relates to the technical field of children's carts, in particular to a foldable child stroller and a vehicle receiving mechanism thereof, and a folding and folding method.
  • the stroller is a kind of tool cart designed to facilitate the outdoor activities of the baby. It is the baby's favorite walking vehicle, and it is also a must for the mother to take the baby to the street. With the progress of production and life, the use of baby strollers is also increasing.
  • the Chinese patent publication No. CN101544242 discloses a folding stroller, which belongs to the technical field of folding mechanism structure.
  • a folding stroller comprising a push rod and a front wheel bracket and a rear wheel bracket with wheels at the bottom, wherein the front wheel bracket and the rear wheel bracket are movably connected to the upper push rod through the center disc, and the middle portion of the push rod passes the side support and
  • the rear end of the base is movably connected, and the middle of the front wheel bracket is movably connected with the front end of the base, and the rear wheel bracket is movably connected to the middle of the base through the rear wheel bracket pull rod, and the base is locked with the rear wheel bracket by the folding locking device.
  • the Chinese patent publication No. CN201347112 discloses a foldable stroller frame, comprising a front bracket, a rear bracket rotatably coupled to the front bracket, a push rod slidably coupled to the front bracket, and two ends respectively and a front bracket and a push a first connecting rod that is rotatably connected to the rod, a seat rod that is rotatably connected to the push rod at one end, at least one folding hook that is rotatably connected at one end to the push rod, and has a hook shape at the other end, and is folded on the front bracket Locking pin with lock hook.
  • the push rod is pushed down, and the front end is moved by the connecting rod, and the plane moves.
  • the rear bracket is pushed forward to complete the folding process, and the supporting stroller is needed. When the above process is reversed, it can be completed.
  • the above technical solution realizes the folding of the baby carriage, but the folding process is relatively cumbersome, and at the same time, the multiple exposed joint mechanisms and the locking structure are easy to cause harm to children and affect the safety of use.
  • the Chinese Patent Publication No. CN201257998 discloses a collapsible baby carriage folding and folding joint involving a foldable baby carriage, including a front wheel bracket, a driver bracket, a function handle and a function latch, and the front wheel bracket end is fixedly connected to a lower seat.
  • the front end of the driver bracket is fixedly connected to the upper seat, the lower seat is connected to the upper seat, the driver bracket is provided with a pull wire, the front wheel bracket and the connecting upper seat have a receiving hole for accommodating the function pin, and the function pull handle is passed through the pull wire and the function latch.
  • the function pin is provided with a spring, and the function pin can partially enter the accommodating hole of the front wheel bracket under the action of the handle, the spring and the wire, the part is matched with the accommodating hole connected to the upper seat, or is accommodated with the front wheel bracket.
  • the holes are detached and all are matched with the receiving holes that are connected to the upper seat.
  • Chinese Patent Publication No. CN103507846A discloses a stroller comprising a symmetrical symmetrical left side bracket and a right side bracket, a connecting bracket connected between the left side bracket and the right side bracket, and a left side bracket
  • Rotating and connecting with the rear part of the left link the lower part of the left push rod frame is rotatably connected with the upper part of the left pull rod, and the upper part of the left front frame and the upper part of the left rear frame are rotatably connected with the lower three parts of the left side rod, and the right side bracket is connected
  • the same is set; when the cart frame is in the deployed position, an angle ⁇ is formed between the front frame and the side bar, and
  • the technical solution still has the following problems: 1. When unfolding, the front frame, the side bar and the push rod frame are unfolded in a straight line, and the locking mechanism is pressed against each other by the push rod frame and the side bar to lock the vehicle body, at the time of folding It is necessary to fold the lever frame to form the lever to fold, which is not only inconvenient to fold, but also requires a large force, and the force is concentrated, and the push rod frame is easily damaged; 2.
  • the push rod frame adopts two-stage expansion and contraction, and the length is still smaller after contraction.
  • the front frame can not be folded for a long length, so that the frame is still large after the folding; 3, when folding, if the wheel is folded together to make the frame smaller, you need to fold down After the rear wheel is stowed, the two sides of the bracket are folded, the operation is inconvenient, the process is unreasonable, and the use skill is too high; 4. After the left and right sides of the bracket are folded and folded, if the position is not right, it is easy to spread. It is inconvenient to collect and use; 5. The locking mechanism and multiple joint mechanisms are exposed, which is easy to cause harm to children and affect the safety of use.
  • the patent document published as CN204415487U discloses a baby carriage frame that is convenient for folding and storage, including a push rod, a front bracket, a rear bracket, a chassis seat, a front wheel frame and a rear wheel frame; the upper end of the push rod is connected with a handle; The upper end of the bracket is rotatably connected with the lower end of the push rod to form a first hinge point; the upper end of the rear bracket is also rotatably connected to the lower end of the push rod to form a second hinge point, and the second hinge point is located behind the first hinge point; a front wheel frame is connected to the front end of the chassis seat; a lower end of the front bracket is rotatably connected to the front portion of the chassis seat to form a third hinge point; a lower end of the rear bracket is rotatably coupled to the rear portion of the chassis seat to form a fourth hinge point; the rear wheel frame rotates Connected to a fourth hinge point at the rear of the chassis base; the front bracket is provided with a first connecting
  • the scheme adopts a chassis seat structure.
  • the chassis seat In order to ensure the stability of the frame, the chassis seat is bulky and cannot be folded, so that the folded frame is still large in size, although it also shows that the push rod is retractable or folded.
  • a simple bending structure is also given, but even if the push rod is bent, the frame volume is still large.
  • the object of the present invention is to provide a child stroller and a car-receiving mechanism thereof, and a folding and folding method, which has a more reasonable structure, a smaller volume after folding, and convenient and labor-saving operation.
  • a car-receiving mechanism for a child trolley comprising two side frames symmetrically arranged on the left and right sides and a cross bar connected between the two side frames, each side frame comprising a front foot bar (10), a rear foot bar (20) and a pusher bar.
  • a front wheel (13) is mounted under the front foot bar (10)
  • a rear wheel (21) is mounted below the rear foot bar (20), wherein the lower end of the front support bar (30) is hinged to the middle of the front foot bar (10).
  • the upper end of the front support bar (30) is hinged to the lower end of the pusher bar, the upper end of the rear support bar (40) is hinged to the middle of the pusher bar, and the lower end of the rear support bar (40) is hinged to the upper end of the support vertical bar (14) to support
  • the lower end of the vertical rod (14) is hinged with the upper end of the rear foot rod (20), and the middle portion of the supporting vertical rod (14) is fixedly connected or integrally formed with the upper end of the front foot rod (10); one end of the first connecting rod (31) and the front end
  • the lower end of the support rod (30) is fixedly connected or integrally formed, the other end of the first link (31) is hinged to one end of the second link (32), and the other end of the second link (32) is connected to the rear leg (20).
  • the middle portion is hinged; thus, the front foot bar (10) and the pusher bar are connected between the front support bar (30) and the rear support bar (40) and constitute a foldable first four-bar linkage mechanism, the front foot bar (10) And a first four-link mechanism and a rear leg (20) in a folded state by sequentially connecting the first link (31) and the second link (32) with the rear leg (20) ) are respectively stacked on the upper and lower sides of the front foot bar (10); wherein the upper end of the rear support bar (40) and the middle portion of the pusher bar are locked or released by the closing locking mechanism.
  • the parking lock mechanism comprises a parking switch (621) and a side frame locking member (51), and a middle portion of the pusher bar is provided with a groove (52) capable of accommodating an upper end of the rear support bar (40), and the rear support bar
  • the upper end of (40) is inserted into the groove (52) and hinged with the side wall of the groove by a hinge shaft, and the upper end of the rear support rod (40) is provided with a locking portion (42) when the rear support rod (40) is opposite
  • the locking portion (42) can move in the groove (52), the side frame locking member (51) is slidably disposed in the pusher bar, and the closing switch (621) passes through the steel wire and the side frame locking member ( 51) connection; when the side frame locking member (51) projects into the groove (52) and cooperates with the locking portion (42) of the upper end of the rear support bar (40), the rear support bar (40) cannot rotate relative to the pusher bar Thereby, the two are locked and fixed, so that the two four-
  • the front foot bar (10) is divided into an upper front foot bar (11) and a lower front foot bar (12), and a lower end of the front support bar (30) is hinged to a middle portion of the upper front foot bar (11) to support the vertical rod (14).
  • the middle portion is fixedly connected or integrally formed with the upper end of the upper front leg (11), the front wheel (13) is mounted at the lower end of the lower front leg (12), and the upper end of the lower front leg (12) is hinged to the lower end of the upper front leg (11)
  • the lower end of the upper front leg (11) and the upper end of the lower front leg (12) respectively have a downward hook shape, a lower end of the upper front leg (11) and an articulated shaft of the upper end of the lower front leg (12) ( 122)
  • a head is provided on the lower hook shape, and the lower end of the upper front foot lever (11) and the upper end of the lower front foot lever (12) are locked or released by a front foot lever locking mechanism provided at a root of the lower hook shape.
  • the front foot bar locking mechanism comprises a lower front foot locking hook (111) and a lower front foot locking portion (121), and a middle portion of the lower front foot locking hook (111) is hingedly disposed on the upper front foot (11) lower hook
  • one end of the lower front leg locking hook (111) is a hook portion (1112) that is hooked and engaged with the lower front leg locking portion (121), and one end of the lower front leg locking hook (111) is tilted up and forward.
  • the release portion (1111) outside the rod (11), the lower front foot rod locking hook (111) is coupled with an elastic member to give the hook portion (1112) a tendency to approach the lower front foot rod locking portion (121); when the lower front foot rod locks the hook (111)
  • the hook portion (1112) of the lower front foot lever locking hook (111) is separated from the lower front foot lever locking portion (121), thereby lowering the front foot lever (12) ) can be folded; when the rear foot bar (20) and the lower front foot bar (12) are unfolded, the release portion (1111) of the lower front leg lock hook (111) is outwardly tilted, and the hook of the lower front leg lock hook (111)
  • the portion (1112) is hooked and engaged with the lower front leg lock portion (121), so that the lower front foot bar (12) and the upper front foot bar (11) are locked and fixed.
  • the pusher bar includes a pusher handle (611), a pusher (61), a pusher (62) and a pusher (50), and the pusher (61) is inserted up and down to be able to expand and contract.
  • the middle pusher lever (62) and locked by the push-up lever locking mechanism or Release the telescopic the lower end of the middle pusher lever (62) and the upper end of the pusher lever (50) are hinged and locked or released by the middle push lever locking mechanism; the upper end of the front support bar (30) and the pusher bar ( The lower end of the 50) is hinged, and the upper end of the rear support bar (40) is hinged to the middle of the pusher bar (50).
  • the push-up lever locking mechanism comprises a push-up lever telescopic switch (6111), a push-up lever lock pin (613), a spring piece (614) and a spring sleeve (612), and the spring piece (614) is fixed on the push-up hand lever ( 61) Inserting the insertion portion of the middle pusher lever (62), the outer spring end of the elastic piece (614) is fixed to the pusher lever locking pin (613), and the pusher lever locking pin (613) is extended from the pusher lever (61) and is middle The locking pin hole on the pusher lever (62) is engaged, and the elastic sleeve (612) is sleeved outside the elastic piece (614) and is inserted or lifted by the outer curved end of the sliding control elastic piece (614), and the elastic piece sleeve (612) passes through the steel wire. Connected to the push-up lever telescopic switch (6111) mounted on the pusher handle (611).
  • the middle push lever locking mechanism comprises a linkage (53) and a middle pusher lock (54), and the linkage (53) is slidably disposed in a middle portion of the pusher lever (50) and disposed on the rear support bar (40)
  • the upper end linkage (44) is connected, and the middle pusher lever locking member (54) is slidably disposed on the upper portion of the lower pusher lever (50) and is mated with the locking hole (622) disposed at the lower end of the middle pusher lever (62).
  • the lever locking member (54) is coupled to the linkage (53) by a steel wire, and the middle pusher lever locking member (54) is biased by a spring to the locking hole (622) inserted into the middle pusher lever (62); when the rear support lever ( 40)
  • the linkage (44) drives the linkage (53) to move, and the linkage (53) drives the pusher lock (54) and the pusher (62) through the steel wire.
  • the upper locking hole (622) is plugged or unlocked.
  • the crossbar comprises:
  • the first crossbar (70) is disposed between the upper portions of the upper forefoot bars (11) of the two side frames, and the two ends of the first cross bar (70) respectively extend from the upper part of the upper front foot bars (11) of the two side frames
  • the crossbar mounting arm is hinged; or is disposed between the lower portions of the rear support bars (40) of the two side frames, and the two ends of the first cross bar (70) respectively extend from the lower portions of the rear support bars (40) of the two side frames
  • the crossbar mounting arm is hinged;
  • a second crossbar (80) is disposed between the lower portions of the upper forefoot bars (11) of the two side frames, and the two ends of the second cross bar (80) respectively extend from the lower portions of the upper forefoot bars (11) of the two side frames
  • the crossbar mounting arm is hinged;
  • the third crossbar (25) is disposed between the rear leg (20) of the two side frames, and the two ends of the third cross bar (25) respectively extend with the cross bar mounting arm of the rear leg (20) of the two side frames Hinged
  • the fourth crossbar (65) is disposed between the upper pusher bars (61) of the two side frames, and the two ends of the fourth crossbar (65) respectively extend with the crossbars of the pusher bars (61) of the two side frames
  • the mounting arm is hinged; or, is disposed between the pusher handles (611) of the two side frames, and the two ends of the fourth crossbar (65) are respectively hinged with the crossbar mounting arms from which the pusher handle (611) extends;
  • the hinge axes on the first crossbar (70), the second crossbar (80), the third crossbar (25), and the fourth crossbar (65) are distributed on different planes.
  • the hinge axes on the first crossbar (70), the second crossbar (80), the third crossbar (25) and the fourth crossbar (65) are on the same axis .
  • a child stroller characterized by comprising a pick-up mechanism as described above.
  • a folding and folding method for a child stroller as described above characterized in that the car switch (621) is pulled, the car lock mechanism is released, and the rear support bar (40) and the pusher bar are unlocked and pushed down. Pressing, the first four-bar linkage consisting of the front support bar (30), the rear support bar (40), the front foot bar (10), and the pusher bar is folded, so that the pusher bar is up to the front leg (11) Moving and close together, while the front support bar (30) drives the second leg (10), the first link (31) and the second link (32) through the first link (31) fixed thereto The four-bar linkage mechanism is folded, thereby pulling the rear foot bar (20) to move forward and close to the front forefoot bar (11); and continuing to push, the first four-link mechanism and the rear leg bar (20) composed of the pusher bar and the front and rear support bars are respectively accommodated. On both sides of the front foot bar (10).
  • the present invention adopts the above technical solution.
  • the pusher bar When unfolding, the pusher bar is disposed at an angle with the front and rear foot bars, and the three are connected by two four-bar linkages, so that the four-bar linkage is released.
  • the locking can be easily achieved, the folding is convenient and labor-saving, and the life of each component is long; the rear support bar and the rear leg are respectively folded and folded on the upper and lower sides of the front leg, so that the lengths of the bars are similar and match each other.
  • the folding structure is more reasonable, making the folded frame smaller in size.
  • the structure is simple, the components and costs are reduced, and the stability of the product is greatly improved.
  • a child stroller comprising two side frames symmetrically arranged on the left and right sides and a cross bar connected between the two side frames, each side frame comprising a front foot bar, a rear foot bar and a pusher bar, and a front wheel and a rear foot bar are mounted under the front foot bar The rear wheel is mounted below.
  • the pusher bar includes a pusher handle, a pusher, a pusher, and a pusher.
  • the pusher is inserted into the middle pusher in a manner that can be up and down and can be locked or released by pushing up the handle lock mechanism.
  • the lower end of the pusher lever and the upper end of the pusher lever are hinged and locked or released by the pusher lever locking mechanism.
  • the pusher bar generally adopts a two-stage structure of up-and-down telescopic, and the height range of the push bar of the child trolley is generally clear, so that the length range of the pusher bar is fixed, and the two-stage pusher is adopted.
  • the rod is still longer after being contracted, so that the folded frame is still large in volume. If a three-stage telescopic structure is adopted, there is a complicated locking mechanism and it cannot be locked or released at a higher position by a single switch adjacent to the handlebar, which is not only inconvenient to use, but also easily poses a safety hazard.
  • the push-up hand and the middle push-hand bar pass through the contraction, and the push-pull bar and the push-down hand-hand bar are folded by each other.
  • the three-stage structure control stroke is short and the structure is simple, and can be combined with the support side frame.
  • the four-bar linkage mechanism forms a linkage, which can reduce the locking mechanism, reduce the exposed switch, and improve the operation convenience and reliability.
  • the front foot bar is divided into an upper front foot bar and a lower front foot bar, the lower front end of the lower front leg is mounted with a front wheel, the upper end of the lower front leg is hinged with the lower end of the upper front leg, the lower end of the front support bar is hinged with the middle of the upper front leg, and the front support bar is The upper end is hinged to the lower end of the pusher bar, the upper end of the rear support bar is hinged to the middle of the pusher bar, the lower end of the rear support bar is hinged to the upper end of the support bar, the lower end of the support bar is hinged with the upper end of the rear leg, and the support bar is supported.
  • the middle portion is fixedly connected or integrally formed with the upper end of the upper front leg; one end of the first link is fixedly connected or integrally formed with the lower end of the front support bar, and the other end of the first link is hinged with one end of the second link, and the second The other end of the connecting rod is hinged to the middle of the rear leg; thus, the front support bar and the rear support bar are connected between the upper front foot bar and the lower push hand bar and constitute a foldable first four-bar linkage mechanism, and the upper front foot bar and the rear foot bar By connecting the first link and the second link in sequence and forming a second four-bar linkage mechanism, the first four-bar linkage mechanism and the rear foot lever in the folded state are respectively stacked on the upper and lower sides of the upper front foot bar.
  • the pusher bar When the invention is unfolded, the pusher bar is disposed at an angle with the front leg and the rear leg, and the three are connected by two four-bar linkages, so that the folding of the four-bar linkage can be easily achieved.
  • the folding is convenient and labor-saving, and the lifespan of each component is long; the pusher bar is set to the upper and lower sections, the front leg is set to the upper and lower sections, and the rear support bar and the rear leg are respectively folded and folded on the upper and lower sides of the upper front leg, so that The lengths of the rods are similar and matched with each other, and the folding structure is more reasonable, so that the folded frame is smaller in size.
  • the child trolley is folded by the first four-bar linkage mechanism, and the second four-bar linkage mechanism is used to fold the rear foot rod through a fixed connection between the front support rod and the first link, thereby achieving only one action.
  • the purpose of the folding and folding of the whole child trolley is that after the complete folding of the whole vehicle is completed, the first four-bar linkage and the rear foot bar respectively abut on both sides of the front foot bar, which are described as the upper and lower sides because the children's trolley is folded.
  • the two side frames can be folded inwardly and oppositely by the rotation cooperation with the cross bar, further reducing the folding of the child trolley after folding The size is easy to carry.
  • the car locking mechanism can also be disposed at other hinge positions of the first four-bar linkage mechanism and the second four-bar linkage mechanism, it is preferably disposed between the rear support bar and the push-down hand lever, which has the following advantages:
  • the chair is generally installed between the rear support bar and the push down hand lever, and the car lock mechanism is also disposed here, the direct lock has a better locking effect; 2. There is enough space in the middle of the push down hand bar to hide the setting.
  • the vehicle locking mechanism can not only avoid the joints and the locking mechanism from being exposed, but also cause safety hazards to be played by the children in front, and provides more design choices for the locking mechanism of the car, and can design a more stable and reliable car locking mechanism;
  • the car lock switch is generally arranged on the pusher bar, so that the design not only makes the car lock mechanism simple in structure, convenient and reliable to use, but also facilitates linkage with other locking mechanisms on the pusher bar to reduce the exposed switch.
  • the lower end of the upper front leg and the upper end of the lower front leg respectively have a downward hook shape, and the lower end of the upper front leg and the upper end of the lower front leg are disposed on the lower hook head, the lower end of the upper front leg and the lower front foot
  • the upper end of the rod is locked or released by a front foot locking mechanism provided at the root of the lower hook.
  • the upper front foot bar and the lower front foot bar adopt a lower hook-shaped hinge structure, which not only has better support connection performance, but also makes the folded front and rear wheels have more reasonable dislocation arrangement space.
  • the crossbar includes:
  • the first cross bar is disposed between the upper front foot bars of the two side frames, and the two ends of the first cross bar are respectively hinged with the cross bar mounting arms extending from the upper part of the upper front leg of the two side frames; or, disposed on both sides Between the lower part of the rear support bar, the two ends of the first cross bar are respectively hinged with the crossbar mounting arms extending from the lower support bar of the two side frames; this ensures that the support vertical bar and the rear support bar are hinged firmly to ensure the first A four-bar linkage mechanism is structurally stable.
  • the embodiment is preferably disposed between the lower portions of the rear support bars of the side frames, such that when the seat bars are mounted on the rear support bars and the lower push handle bars, the seat covers and the first cross members are mounted on the side seat bars
  • the rods are respectively connected to the upper and lower ends of the rear support bars of the two side frames, further The structure is guaranteed to be stable.
  • the second cross bar is disposed between the lower front foot legs of the two side frames, and the two ends of the second cross bar are respectively hinged with the cross bar mounting arms extending from the lower front foot bars of the two side frames;
  • the connection between the front foot bars is stable, and the second cross bar acts as a foot pedal.
  • the third cross bar is disposed between the rear leg bars of the two side frames, and the two ends of the third cross bar are respectively hinged with the cross bar mounting arms extending from the rear leg bars of the two side frames; this can ensure the rear foot bars of the two side frames The connection is stable.
  • the fourth crossbar is disposed between the pusher bars of the two side frames, and the two ends of the fourth crossbar are respectively hinged with the crossbar mounting arms extended by the pusher bars of the two side frames; or Between the handlebar handles, the ends of the fourth crossbar are respectively hinged with the crossbar mounting arms from which the pusher handlebars extend. This ensures a secure connection between the pushers of the two side frames.
  • the hinge axes on the first cross bar, the second cross bar, the third cross bar and the fourth cross bar are distributed on different planes; when the two side frames are in the folded and folded state, The hinge axes on one of the crossbars, the second crossbar, the third crossbar, and the fourth crossbar are on the same axis.
  • the two side frames can be folded in the opposite direction along the same axis, so that the folded frame is smaller in size, and when the side frame is unfolded and locked, the structure can be ensured to be stable, and the cart can be avoided. Loose or folded during use.
  • the first crossbar is mounted on the upper forefoot near the rear leg and the second crossbar is mounted adjacent to the lower forefoot.
  • the reason for this choice is that in a limited space, as far as possible away from the first crossbar and the second crossbar, a larger arm can be obtained in the upper forefoot bar on both sides, that is, the two sides can be stabilized with less force. Go up the front foot.
  • the first crossbar is installed on the upper front foot bar near the rear foot bar, and is provided with a supporting vertical bar, which is a position where the plurality of components are hinged, and the overall rigidity of the joint portion can be improved close to the position, thereby improving the rigidity of the whole vehicle.
  • crossbar mounting arm for mounting and folding is provided on the rear leg.
  • the mounting arm is divided into a tail portion fixed to the rear foot rod and a head portion away from the rear foot rod, and an articulated shaft is mounted on the head of the cross rod mounting arm, and the same is provided on the third cross rod for folding the side frame in the opposite direction.
  • a crossbar mounting arm housing groove for accommodating the crossbar mounting arm, and a crossbar mounting hole for fitting the hinge shaft to be symmetrically disposed above and below the crossbar mounting arm housing groove.
  • the shape of the crossbar mounting arm can be designed according to the needs of component avoidance and structural support during folding.
  • the mounting structure of the seat and the seat cover can adopt the structure that has been used in the folding cart in the prior art, and the present invention only provides a preferred embodiment for explanation: the seat rod passes the first connecting member and the second
  • the connecting member is mounted on the rear support bar and the lower push handle bar
  • the first connecting member is hingedly connected with the rear support bar and fixedly connected with the seat bar
  • the second connecting member is mounted on the lower pusher bar
  • the seat bar rests on the second connecting member Or slidingly connected with the second connector sleeve
  • the seat rods of the two sides of the frame are stably connected to the vehicle body through the soft material on the pusher bar.
  • the load-bearing weight of the seat rod is shared by the first connecting piece, the second connecting piece and the soft material.
  • the soft material can be in the form of a cloth cover.
  • the above-mentioned push-up lever locking mechanism can adopt the structure that has been used in the folding cart in the prior art, and the present invention adopts a preferred embodiment, which is explained as follows:
  • the push-up lever locking mechanism comprises a push-up lever telescopic switch, a push-up lever lock pin, a spring piece and a spring sleeve, and the elastic piece is fixed in the insertion portion of the push-hand lever inserted in the push-pull rod, and the outer warping end of the elastic piece is fixed on the push-hand lever locking pin,
  • the pusher lever locking pin extends out of the pusher bar and cooperates with the locking pin hole on the pusher bar.
  • the shrapnel sleeve is disposed outside the shrapnel and is inserted or tilted out by the outer wrap end of the sliding control shrapnel. The shrapnel sleeve is passed through the steel wire and mounted on the pusher.
  • the push-up lever telescopic switch on the handle is connected.
  • the steel wire pulls the shrapnel sleeve to slide the outer warping end of the shrapnel into the shrapnel sleeve, so that the push-up lever locking pin on the outer warping end of the shrapnel is released from the locking pin hole on the push lever, and is unlocked.
  • the push-up lever can be moved up and down in the middle push lever to realize the telescopic movement of the pusher lever; when the push-up lever telescopic switch is pressed, the push-up lever is moved into position, the elastic piece is reset under the action of its own elastic force, and the outer warping end of the elastic piece is lifted out of the elastic piece.
  • the sleeve is inserted into the locking pin hole on the middle pusher lever to realize the positional locking.
  • a plurality of locking pin holes are arranged on the middle push lever, so that the height of the pusher bar can be adjusted for the convenience of the user.
  • the above-described catch-locking mechanism can adopt a structure which has been used in a folding cart in the prior art, for example, the structure disclosed in the patent document published as CN201257998Y, and the present invention adopts a preferred embodiment, which is explained as follows:
  • the car locking mechanism comprises a car switch and a side frame locking member, wherein a middle portion of the push bar is provided with a groove for receiving an upper end of the rear support bar, and an upper end of the rear support bar is inserted into the groove and passes through the side wall of the groove
  • the hinged shaft is hinged, and the upper end of the rear support rod is provided with a locking portion, and the rear support rod phase
  • the locking portion can move in the groove
  • the side frame locking member is slidably disposed in the pusher bar
  • the car switch mounted on the middle pusher bar is connected with the side frame locking member through the steel wire;
  • the rear support rod cannot rotate relative to the lower push rod to realize the locking and fixing of the two, so that the two four-bar linkages of the side frame are locked
  • the rear support bar can be
  • the side frame locking member and the locking portion are preferably engaged by snapping, wedge surface or pinning, so as to have a better locking effect; the side frame locking member protrudes into the groove by the force of the spring.
  • the above-mentioned push lever locking mechanism can adopt the structure that has been used in the folding cart in the prior art, and the present invention adopts a preferred embodiment, which is explained as follows:
  • the middle push lever locking mechanism comprises a linkage member and a middle push lever lock member, the linkage member is slidably disposed in a middle portion of the push down handle bar and is connected with a linkage portion disposed at an upper end of the rear support bar, and the middle push handle bar lock member is slidably disposed at an upper portion of the push down handle bar and
  • the locking hole is arranged at the lower end of the middle push rod, and the middle push rod locking member is connected with the linkage through the steel wire, and the middle push handle lock member is biased by the spring to insert the locking hole on the push handle bar; when the rear support rod is opposite
  • the linkage moves the linkage, and the linkage is inserted or locked by the steel wire to drive the middle lever locking member and the locking hole on the middle push lever to be locked or released.
  • the locking and releasing of the folding of the middle push lever is linked with the folding of the four-bar linkage mechanism, and there is no need to additionally increase the exposure switch to control the folding of the middle push lever, thereby reducing the cost, improving the safety, and coordinating the design.
  • the matching relationship between the middle lever pushing member, the linkage member and the linkage portion can be used to retract the four-bar linkage mechanism to the appropriate position and then the folding of the hand lever is used, which is more convenient and reasonable to use.
  • the cooperation of the linkage portion and the linkage member may be in various forms as long as the rotation of the linkage portion can be converted into the pulling of the steel wire.
  • the linkage portion is hooked and connected with the linkage member in the form of a hook, and has a simple structure, reliable cooperation, and small volume.
  • the two can also be matched with the pin by the elongated slot/hole, or the wire loop of the steel wire can be directly attached to the linkage.
  • a steering member which may be a pulley or a pillar for winding the steel wire.
  • a lever member is hingedly disposed inside the upper end of the push-down lever, and one end of the lever member is movably connected to the middle push lever locking member through the elongated slot/hole and the pin, and the other end of the lever member is coupled with the steel wire. The pieces are connected so that the structure is simple and the adjustment is convenient.
  • the plug-fit structure of the middle push lever locking member and the locking hole on the middle push lever can be referred to the locking gear structure disclosed in the patent document CN204415487U.
  • the middle push lever locking member is a stud, and the stud is not coaxial with the hinge shaft of the middle push lever and the push push lever, so that the structure is simple, the volume is small, and the locking is reliable.
  • the front foot bar locking mechanism includes a lower front foot locking hook and a lower front foot locking portion, and a middle portion of the lower front foot locking hook is hingedly disposed in a bottom portion of the upper front foot bar hook, and one end of the lower front foot locking hook is a lower front foot
  • the rod locking portion hooks the engaged hook portion, and one end of the lower front foot rod locking hook is a release portion that is lifted out of the upper front foot rod, and the lower front foot rod locking hook is connected with the elastic member to give the hook portion a tendency to be close to the lower front foot rod locking portion;
  • the side rail is folded on the fourth crossbar, and the folding lock switch is arranged on the fourth crossbar.
  • a folding lock pin one end of the folding lock pin is connected with the folding lock switch, and the other end of the folding lock pin protrudes from the end of the fourth cross bar and is mated with the locking hole provided on the crossbar mounting arm to thereby
  • the locking and fixing, the crossbar mounting arm is fixed on the upper pusher bar, and the end of the crossbar mounting arm is provided with two locking holes respectively corresponding to the side frame folded state and the side frame unfolded state. In this way, the side frame folding state and the side frame unfolding state can be locked, and the folding lock switch needs to be operated to unlock the folding.
  • the roof rack set can be flipped back and forth on the fourth crossbar and can be leveled for use by the sun through the stop structure.
  • the push-up lever locking mechanism, the push-pull lever locking mechanism, the parking lock mechanism, the front-leg locking mechanism, and the side frame folding locking mechanism are all in a locked and fixed state, and the entire frame support is stable.
  • the first four-bar linkage mechanism consisting of the front support bar, the rear support bar, the upper front foot bar and the lower push hand bar is folded, so that the push-down hand bar moves up and forward to the front foot bar, and the front support bar passes through the first fixed line
  • the connecting rod drives the second four-bar linkage mechanism composed of the upper front foot bar, the first connecting rod and the second connecting rod to fold, thereby pulling the rear foot bar to move forward and close to the front foot bar; when the rear supporting bar rotates to a certain position, the connecting The linkage cooperates to release the middle push lever locking mechanism, the push down lever and the middle push lever are unlocked, and the pushing is continued, so that the push lever is pushed in the folding forward movement of the front forward lever.
  • the first four-link mechanism and the rear foot bar composed of the pusher lever and the front and rear support bars are respectively accommodated on both sides of the upper front foot bar, and the rear foot bar releases the front foot bar locking mechanism.
  • the lower front foot bar is folded down to the lower foot bar, and the lower hook shape of the upper front foot bar and the lower front foot bar hinged position makes the misalignment arrangement of the front and rear wheels more reasonable.
  • the side frame folding locking mechanism locks the two side frames to complete the folding of the entire frame.
  • Figure 1 is a schematic view of the structure of the present invention
  • Figure 2 is a schematic view of the folding of the present invention
  • Figure 3 is a second schematic view of the folding of the present invention.
  • Figure 4 is a third schematic view of the folding of the present invention.
  • Figure 5 is a fourth schematic view of the folding of the present invention.
  • Figure 6 is a fifth schematic view of the folding of the present invention.
  • Figure 7 is a sixth schematic view of the folding of the present invention.
  • Figure 8 is a seventh schematic view of the folding of the present invention.
  • Figure 9 is a schematic view of the folding of the present invention.
  • Figure 10 is a ninth schematic view of the folding of the present invention.
  • Figure 11 is a tenth schematic view of the folding of the present invention.
  • Figure 12 is a side view of the present invention.
  • Figure 13 is a schematic structural view of the push-up lever locking mechanism
  • Figure 14 is a schematic structural view of a car locking mechanism
  • Figure 15 is a schematic structural view of the middle push lever locking mechanism
  • Figure 16 is a second schematic structural view of the middle push lever locking mechanism
  • Figure 17 is a schematic structural view of a front foot lever locking mechanism
  • Figure 18 is a schematic view showing the structure of the side frame folding lock mechanism.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining “first” and “second” may include one or more of the features either explicitly or implicitly. In the description of the present invention, "a plurality” means two or more unless otherwise specifically defined.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or connected integrally; may be mechanical or electrical; It can be directly connected or indirectly connected through an intermediate medium, which can be the internal connection between two components.
  • installation shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or connected integrally; may be mechanical or electrical; It can be directly connected or indirectly connected through an intermediate medium, which can be the internal connection between two components.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them.
  • the first feature "above”, “above” and “above” the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature includes the first feature directly below and below the second feature, or merely the first feature level being less than the second feature.
  • a child stroller includes two side frames symmetrically arranged side to side and a cross bar connected between the side frames, each side frame including a front foot bar 10, a rear foot bar 20 and a pusher bar A front wheel 13 is mounted below the front foot bar 10, and a rear wheel 21 is mounted below the rear foot bar 20.
  • the pusher bar includes a pusher handle 611, an up pusher 61, a pusher 62 and a pusher 50, and the pusher 61 is inserted into the upper and lower telescopic manner. It is disposed in the middle pusher 62 and is locked or released by the push-up lever locking mechanism. The lower end of the push-pull lever 62 and the upper end of the push-pull lever 50 are hinged and locked or released by the push-pull locking mechanism. fold.
  • the pusher bar generally adopts a two-stage structure of up-and-down telescopic, and the height range of the push bar of the child trolley is generally clear, so that the length range of the pusher bar is fixed, and the two-stage pusher is adopted.
  • the rod is still longer after being contracted, so that the folded frame is still large in volume. If a three-stage telescopic structure is adopted, there is a complicated locking mechanism and it cannot be locked or released at a higher position by a single switch adjacent to the handlebar, which is not only inconvenient to use, but also easily poses a safety hazard.
  • the push-up hand and the middle push-hand bar pass through the contraction, and the push-pull bar and the push-down hand-hand bar are folded by each other.
  • the three-stage structure control stroke is short and the structure is simple, and can be combined with the support side frame.
  • the four-bar linkage mechanism forms a linkage, which can reduce the locking mechanism, reduce the exposed switch, and improve the operation convenience and reliability.
  • the front foot bar 10 is divided into an upper front foot bar 11 and a lower front foot bar 12, and a lower front end of the lower front foot bar 12 is mounted with a front wheel 13, and an upper end of the lower front foot bar 12 is hinged to a lower end of the upper front foot bar 11, front
  • the lower end of the support rod 30 is hinged to the middle of the upper front foot rod 11, the upper end of the front support rod 30 is hinged to the lower end of the lower push rod 50, the upper end of the rear support rod 40 is hinged to the middle of the lower push rod 50, and the lower end of the rear support rod 40 Hinged with the upper end of the support vertical rod 14, the lower end of the support vertical rod 14 is hinged with the upper end of the rear foot rod 20, and the middle portion of the support vertical rod 14 is fixedly connected or integrally formed with the upper end of the upper front foot rod 11; one end of the first link 31 is The lower end of the front support bar 30 is fixedly connected or integrally formed, the other end of the first link 31 is hinge
  • the pusher bar When the invention is unfolded, the pusher bar is disposed at an angle with the front leg and the rear leg, and the three are connected by two four-bar linkages, so that the folding of the four-bar linkage can be easily achieved.
  • the folding is convenient and labor-saving, and the lifespan of each component is long; the pusher bar is set to the upper and lower sections, the front leg is set to the upper and lower sections, and the rear support bar and the rear leg are respectively folded and folded on the upper and lower sides of the upper front leg, so that The lengths of the rods are similar and matched with each other, and the folding structure is more reasonable, so that the folded frame is smaller in size.
  • the car locking mechanism can also be disposed at other hinge positions of the first four-bar linkage and the second four-bar linkage mechanism, it is preferably disposed between the rear support bar 40 and the lower push bar 50, which has the following advantages:
  • the seat is generally installed between the rear support bar and the push down hand lever, and the parking lock mechanism is also disposed here, the direct lock has a better locking effect; 2.
  • the car lock switch is generally set on the pusher bar, this design not only makes the car lock mechanism simple, easy to use and reliable, but also facilitates linkage with other locking mechanisms on the pusher bar to reduce the exposed switch.
  • the lower end of the upper front leg 11 and the upper end of the lower front leg 12 are respectively fitted with a lower hook shape, and the lower end of the upper front leg 11 and the upper end of the lower front leg 12 are disposed in a lower hook shape.
  • the head, the lower end of the upper front leg 11 and the upper end of the lower front leg 12 are locked or released by a front leg locking mechanism provided at the root of the lower hook.
  • the upper front foot bar and the lower front foot bar adopt a lower hook-shaped hinge structure, which not only has better support connection performance, but also makes the folded front and rear wheels have more reasonable dislocation arrangement space.
  • the crossbar includes:
  • the first crossbar 70 is disposed between the upper front footrests 11 of the two side frames, and the two ends of the first crossbar 70 and the upper front legs of the two side frames respectively 11
  • the crossbar mounting arm extending from the upper portion is hinged; or is disposed between the lower portions of the rear support bar 40 of the two side frames, and the two ends of the first cross bar 70 respectively extend from the lower portion of the rear support bar 40 of the two side frames.
  • the rod mounting arm is hinged; this ensures that the support vertical rod 14 and the rear support rod 40 are hingedly secured to ensure the stability of the first four-bar linkage mechanism.
  • This embodiment is preferably disposed between the lower portions of the rear support bars 40 of the side frames such that when the seat bars 41 are mounted on the rear support bars 40 and the lower push bar 50, the seats mounted on the side seat bars 41 are mounted.
  • the sleeve and the first cross bar 70 respectively connect the upper and lower ends of the rear support bar 40 of the two side frames, further ensuring structural stability.
  • the second cross bar 80 is disposed between the lower front foot bars 11 of the two side frames, and the two ends of the second cross bar 80 are respectively hinged with the cross bar mounting arms extending from the lower front foot bars 11 of the two side frames; It is ensured that the connection between the front foot bars 10 of the side frames is stable, and the second cross bar 80 functions as a foot pedal.
  • the third crossbar 25 is disposed between the rear leg 20 of the two side frames, and the two ends of the third cross bar 25 are respectively hinged with the crossbar mounting arms extending from the rear leg 20 of the two side frames; The connection between the rear foot bars 20 is stable.
  • the fourth crossbar 65 is disposed between the pusher bars 61 of the two side frames, and the two ends of the fourth cross bar 65 are respectively hinged with the crossbar mounting arms extended by the pusher bars 61 of the two side frames; or, Between the pusher levers 611 of the two side frames, the two ends of the fourth crossbar 65 are respectively hinged with the crossbar mounting arms from which the pusher handle 611 extends. This ensures a secure connection between the pushers of the two side frames.
  • the hinge axes on the first crossbar 70, the second crossbar 80, the third crossbar 25, and the fourth crossbar 65 are distributed on different planes;
  • the hinge axes on the first rail 70, the second rail 80, the third rail 25, and the fourth rail 65 are on the same axis.
  • the two side frames can be folded in the opposite direction along the same axis, so that the folded frame is smaller in size, and when the side frame is unfolded and locked, the structure can be ensured to be stable, and the cart can be avoided. Loose or folded during use.
  • the first crossbar is mounted on the upper forefoot near the rear leg and the second crossbar is mounted adjacent to the lower forefoot.
  • the reason for this choice is that in a limited space, as far as possible away from the first crossbar and the second crossbar, a larger arm can be obtained in the upper forefoot bar on both sides, that is, the two sides can be stabilized with less force. Go up the front foot.
  • the first crossbar is installed on the upper front foot bar near the rear foot bar, and is provided with a supporting vertical bar, which is a position where the plurality of components are hinged, and the overall rigidity of the joint portion can be improved close to the position, thereby improving the rigidity of the whole vehicle.
  • the third embodiment of the present invention is described by taking the third crossbar 25 as an example, and the rear leg 20 is provided with a crossbar mounting arm for mounting and folding.
  • the crossbar mounting arm is divided into a tail portion fixed to the rear leg rod 20 and a head portion away from the rear foot rod 20, and an articulated shaft is mounted on the head of the crossbar mounting arm, and the same is provided on the third crossbar 25 for the side frame.
  • the crossbar mounting arm housing groove for accommodating the crossbar mounting arm when folding is folded, and the crossbar mounting hole for fitting the hinge shaft is symmetrically provided on the upper and lower sides of the crossbar mounting arm housing groove.
  • the shape of the crossbar mounting arm can be designed according to the needs of component avoidance and structural support during folding.
  • the mounting structure of the seat and the seat cover can adopt the structure that has been used in the folding cart in the prior art, and the present invention only provides a preferred embodiment for explanation: as shown in FIG. 1, the seat rod 41 passes
  • the first connecting member 411 and the second connecting member 412 are mounted on the rear support bar 40 and the lower push bar 50.
  • the first connecting member 411 is hingedly coupled to the rear support bar 40 and fixedly coupled to the seat bar 41, and the second connecting member 412 is mounted.
  • On the pusher bar 50 the seat bar 41 rests on the second connecting member 412 or is slidably coupled to the second connecting member 412.
  • the seat bar 41 of the two side frames integrally passes through the soft material on the pusher bar. Maintain a stable connection with the car body.
  • the load bearing of the seat lever 41 is shared by the first connecting member 411, the second connecting member 412, and the soft material.
  • the soft material can be in the form of a cloth cover.
  • the above-mentioned push-up lever locking mechanism can adopt the structure that has been used in the folding cart in the prior art, and the present invention adopts a preferred embodiment, which is explained as follows:
  • the push-up lever locking mechanism includes a push-up lever telescopic switch 6111, an upper push-hand lever locking pin 613, a spring piece 614 and a spring sleeve 612.
  • the elastic piece 614 is fixed to the push-hand lever 61 inserted into the push-hand lever 62. In the insertion portion, the outer end of the elastic piece 614 is fixed with the push-up lever locking pin 613, and the push-up lever locking pin 613 extends from the upper push-hand lever 61 and cooperates with the locking pin hole on the middle push-hand lever 62.
  • the elastic sleeve 612 is sleeved on the elastic piece 614.
  • the outer sleeve end of the slide control ejector 614 is inserted or lifted out, and the spring sleeve 612 is connected to the push-up lever telescopic switch 6111 mounted on the pusher handle 611 by a steel wire.
  • the steel wire pulls the elastic sleeve 612 to slide the outer end of the elastic piece 614 into the elastic sleeve 612 so that the push-up lever locking pin 613 on the outer end of the elastic piece 614 pushes the locking pin on the hand lever 62.
  • the hole is released from the unlocking state, so that the push-up lever 61 can be moved up and down in the middle push lever 62 to realize the push-pull telescopic expansion; when the push-up hand lever telescopic switch 6111 is pressed, the push-up hand lever 61 is moved into position, and the elastic piece 614 is elasticized by itself. Under the action of resetting, the outer curling end of the elastic piece 614 is lifted out of the elastic piece sleeve 612 so that the push-up hand lever locking pin 613 on the outer curling end of the elastic piece 614 is inserted into the locking pin hole on the middle pushing hand lever 62 to realize the position locking.
  • a plurality of locking pin holes are provided in the middle push lever 62, so that the height of the pusher bar can be adjusted for the convenience of the user.
  • the above-mentioned car locking mechanism can adopt a structure that has been used in a folding cart in the prior art, for example, the publication number is CN201257998Y.
  • the structure disclosed in the patent document, and the present invention adopts a preferred embodiment, which is explained as follows:
  • the parking lock mechanism includes a parking switch 621 and a side frame locking member 51.
  • the middle portion of the push-down hand lever 50 is provided with a recess 52 capable of accommodating the upper end of the rear support bar 40, and the rear support bar 40.
  • the upper end is inserted into the groove 52 and is hinged with the side wall of the groove through the hinge shaft.
  • the upper end of the rear support rod 40 is provided with a locking portion 42.
  • the locking portion 42 can be Moving in the recess 52, the side frame locking member 51 is slidably disposed in the lower push lever 50, and the parking switch 621 mounted on the middle push lever 62 is connected to the side frame locking member 51 by a steel wire; when the side frame locking member 51 is extended
  • the rear support bar 40 cannot be rotated relative to the pusher bar 50 to achieve the locking and fixing of the two, so that the two four-bar linkages of the side frame are The lock cannot move; when the side frame lock 51 is retracted and separated from the lock portion 42 at the upper end of the rear support bar 40, the rear support bar 40 can be rotated relative to the pusher bar 50, so that the two four-bar linkages of the side frame can be moved.
  • the side frame locking member 51 and the locking portion 42 are preferably engaged by snapping, wedge surface or pinning, so as to have a better locking effect; the side frame locking member 51 protrudes into the groove 52 by a spring force.
  • the above-mentioned push lever locking mechanism can adopt the structure that has been used in the folding cart in the prior art, and the present invention adopts a preferred embodiment, which is explained as follows:
  • the middle push lever locking mechanism includes a link member 53 and a middle push lever lock member 54, and the link member 53 is slidably disposed at a middle portion of the push down handle bar 50 and is disposed at an upper end of the rear support bar 40.
  • the linkage portion 44 is connected, and the middle push lever locking member 54 is slidably disposed on the upper portion of the lower push handle 50 and is engaged with the locking hole 622 disposed at the lower end of the middle push lever 62.
  • the middle push lever lock 54 is connected to the linkage 53 through a steel wire.
  • the middle push lever locking member 54 is biased by the spring to the locking hole 622 inserted into the middle push lever 62; when the rear support lever 40 is rotated relative to the lower push lever 50, the linkage portion 44 drives the linkage 53 to move, and the linkage 53 passes through the steel.
  • the wire-carrying middle push lever locking member 54 is latched or released and released from the locking hole 622 on the middle pusher lever 62.
  • the locking and releasing of the folding of the middle push lever 62 is linked with the folding of the four-bar linkage mechanism, and there is no need to additionally increase the exposure switch to control the folding of the middle push lever, thereby reducing the cost, improving the safety, and coordinating
  • the matching relationship between the push rod locking member 54, the linkage member 53 and the linkage portion 44 can be used to retract the four-bar linkage mechanism to the appropriate position and then the folding of the hand lever is used, which is more convenient and reasonable to use.
  • the cooperation of the interlocking portion 44 and the link member 53 may be in various forms as long as the rotation of the interlocking portion can be converted into the pulling of the steel wire.
  • the linkage portion 44 is hooked and connected with the linkage 53 in the form of a hook by a hanging slot, and has a simple structure, reliable cooperation, and small volume.
  • the two can also be matched with the pin by the elongated slot/hole, or the wire loop of the steel wire can be directly attached to the linkage.
  • a steering member which may be a pulley or a pillar for winding a steel wire.
  • a lever member 55 is hingedly disposed inside the upper end of the push-down hand lever 50, and one end of the lever member 55 is movably connected to the middle push lever lock member 54 through the elongated slot/hole and the pin. The other end of the lever member 55 is connected to the linkage member 53 through a steel wire, so that the structure is simple and the adjustment is convenient.
  • the plug-fit structure of the middle push lever lock 54 and the lock hole 622 on the push handle 62 can be referred to the lock gear structure disclosed in the patent document CN204415487U.
  • the middle push lever locking member 54 is a stud which is not coaxial with the hinge shaft of the middle push lever 62 and the push push lever 50, so that the structure is simple and the volume is small. The lock is reliable.
  • the front foot lever locking mechanism includes a lower front foot locking hook 111 and a lower front foot locking portion 121, and a middle portion of the lower front foot locking hook 111 is hingedly disposed in a root portion of the upper front foot 11 under the hook shape,
  • One end of the front foot lever locking hook 111 is a hook portion 1112 that is hooked and engaged with the lower front foot rod locking portion 121.
  • One end of the lower front foot rod locking hook 111 is a release portion 1111 that protrudes out of the upper front foot rod 11, and the lower front foot rod locking hook 111
  • the elastic member is coupled to give the hook portion 1112 a tendency to approach the lower front forefoot locking portion 121; when the rear toe bar 20 of the lower forefoot lever locking hook 111 is pressed back by the folded rear leg 20, the hook portion 1112 of the lower forefoot lever locking hook 111 is The lower front leg locking portion 121 is separated, so that the lower front foot bar 12 can be folded; when the rear foot bar 20 and the lower front foot bar 12 are unfolded, the release portion 1111 of the lower front leg locking hook 111 is outwardly tilted, and the lower front leg locking hook 111
  • the hook portion 1112 is hooked and engaged with the lower front leg lock portion 121, so that the lower front foot bar 12 and the upper front foot bar 11 are locked and fixed. In this way, the folding of the lower front foot bar is arranged in the form of the locking hook, and the
  • the side rail is provided with a side frame folding locking mechanism, as shown in FIG. 1 and FIG. 18, including the sliding arrangement.
  • a folding lock switch 651 and a folding lock pin 6511 on the fourth cross bar 65 One end of the folding lock pin 6511 is connected to the folding lock switch 651, and the other end of the folding lock pin 6511 protrudes from the end of the fourth cross bar 65 and is mated with the locking hole 6121 provided on the crossbar mounting arm 612 to The locker is fixed, and the crossbar mounting arm 611 is fixed to the upper pusher lever 61.
  • the end of the crossbar mounting arm 611 is provided with two locking holes 6121 respectively corresponding to the side frame folded state and the side frame unfolded state. In this way, the side frame folding state and the side frame unfolding state can be locked, and the folding lock switch needs to be operated to unlock the folding.
  • the top scaffolding 652 is set on the fourth cross bar 65 and can be flipped back and forth, and can be flattened for use by the sun through the stop structure.
  • the push-up lever locking mechanism, the middle push lever locking mechanism, the parking lock mechanism, the front foot lock mechanism, and the side frame folding lock mechanism are all in a locked and fixed state, and the entire vehicle is The frame support is stable.
  • the top frame 652 is first rotated to be parallel with the pusher bar;
  • the push-up lever telescopic switch 6111 on the pusher handle 611 is pressed, the push-up lever lock mechanism is released, and the push-up lever 61 is pushed down to retract the push-up hand lever 61 to the bottom of the push-pull lever 62;
  • the car switch 621 is then pulled to release the car lock mechanism, so that the rear support bar 40 and the pusher bar 50 are unlocked, and pushed downwards, and the front support bar 30 of the two side frames,
  • the first four-bar linkage mechanism composed of the rear support bar 40, the upper front foot bar 11, and the lower push hand bar 50 is folded, so that the push-down hand bar 50 moves up and forwards toward the front foot bar 11, and the front support bar 30 passes through the first fixed connection thereto.
  • the connecting rod 31 drives the second four-bar linkage mechanism composed of the upper front foot rod 11, the first connecting rod 31 and the second connecting rod 32 to be folded, thereby pulling the rear foot rod 20 to move forward and close to the front foot rod 11;
  • the first four-bar linkage mechanism and the rear footrest 20 composed of the pusher lever and the front and rear support levers are respectively accommodated on both sides of the upper front footrest 11, and the rearfoot lever 20 releases the front footbar locking mechanism.
  • the lower front foot bar 12 is folded down to the rear foot bar 20, as shown in FIG. 8, the lower front foot bar and the lower front foot bar are hinged to the lower hook shape.
  • the design makes the misalignment of the front and rear wheels more reasonable.
  • the side frame is folded in half to lock the lock switch 651, and the two side frames are folded in half, and the two side frames are along the first cross bar 70, the second cross bar 80, the third cross bar 25, and the fourth cross bar 65.
  • the hinge axes of the two sides are folded.
  • the side frame folding locking mechanism locks the two side frames to complete the folding of the entire frame.
  • a car-receiving mechanism for a child trolley comprising two side frames symmetrically arranged on the left and right sides and a cross bar connected between the two side frames, each side frame including a front foot bar 10, a rear foot bar 20 and a pusher bar, and a front foot bar 10
  • the front wheel 13 is mounted, and the rear wheel 21 is mounted below the rear foot bar 20.
  • the lower end of the front support bar 30 is hinged to the middle of the front foot bar 10.
  • the upper end of the front support bar 30 is hinged to the lower end of the pusher bar, and the upper end of the rear support bar 40 is The middle portion of the push lever is hinged, the lower end of the rear support rod 40 is hinged with the upper end of the support vertical rod 14, the lower end of the support vertical rod 14 is hinged with the upper end of the rear foot rod 20, and the middle portion of the support vertical rod 14 is fixedly connected with the upper end of the front foot rod 10 or
  • One end of the first link 31 is fixedly connected or integrally formed with the lower end of the front support bar 30, the other end of the first link 31 is hinged to one end of the second link 32, and the other end of the second link 32 is The middle portion of the rear foot bar 20 is hinged; thus, the front foot bar 10 and the pusher bar are connected between the front support bar 30 and the rear support bar 40 and constitute a foldable first four-bar linkage mechanism, and the front foot bar 10 and the rear leg bar 20 are sequentially passed.
  • first link 31 and the second link 32 Connecting the first link 31 and the second link 32 And forming a second four-bar linkage mechanism, the first four-bar linkage mechanism and the rear foot lever 20 in a folded state are respectively stacked on the upper and lower sides of the front footrest 10; wherein the upper end of the rear support pole 40 and the middle of the pusher lever are received
  • the vehicle locking mechanism achieves locking or release folding.
  • a children's cart comprising a pick-up mechanism as described above.
  • the folding and folding method of the child trolley as described above pulls the car switch 621 to release the car lock mechanism, so that the rear support bar 40 and the push bar are unlocked, and the push is pushed downward to
  • the first four-bar linkage mechanism composed of the front support bar 30, the rear support bar 40, the front foot bar 10, and the pusher bar is folded, so that the pusher bar moves toward the front forefoot bar 11 and closes, and the front support bar 30 passes through the first fixed connection thereto.
  • the connecting rod 31 drives the second four-bar linkage mechanism composed of the front foot bar 10, the first connecting rod 31 and the second connecting rod 32 to be folded, thereby pulling the rear foot bar 20 to move forward and close to the front foot bar 11; continue pushing, pushing the hand lever
  • the first four-bar linkage mechanism and the rear leg lever 20 composed of the front and rear support rods are respectively received on both sides of the front footrest 10.
  • a foot bar for a child cart comprising a front foot bar 10 and a rear foot bar 10, the front foot bar 10 being divided into an upper front foot bar 11 and a lower front foot bar 12, a lower front end of the lower front foot bar 12 being mounted with a front wheel 13, and an upper end of the lower front foot bar 12
  • the lower end of the upper front leg 11 is hinged, and the rear wheel 21 is mounted with a rear wheel 21, and the upper end of the rear leg 20 is hinged with the upper end of the upper front leg 11, and the upper end of the upper front leg 11 and the upper end of the lower front leg 12 are respectively Phase
  • the lower hooks of the upper front leg 11 and the upper end of the lower front leg 12 are disposed on the lower hook head, and the lower end of the upper front leg 11 and the upper end of the lower front leg 12 are disposed in the lower hook shape.
  • the front foot lever locking mechanism of the root enables locking or release folding.
  • a child cart comprising two side frames arranged symmetrically left and right and a cross bar connected between the side frames, each side frame comprising a foot bar and a pusher bar, the foot bar being a foot bar as described above.
  • the rear foot bar 20 is received on the lower side of the upper front foot bar 11, the rear foot bar 20 releases the front foot bar locking mechanism, and the lower front foot bar 12 is folded to the rear foot bar 20.
  • a pusher bar for a child's trolley includes a pusher handle 611, a push up handle 61, a push pusher 62 and a push down handle 50.
  • the push up handle 61 is inserted into the middle pusher 62 in a manner that can be up and down telescopically
  • the push-up lever locking mechanism realizes locking fixation or release expansion and contraction, and the lower end of the push-pull lever 62 and the upper end of the push-down lever 50 are hinged and locked or released by the push-pull lever locking mechanism.
  • a child stroller comprising two side frames arranged symmetrically to the left and right and a cross bar connected between the side frames, each side frame comprising a foot bar and a pusher bar, the pusher bar being a pusher bar as described above.
  • a method for folding a pusher bar of a child's trolley pressing the push-up lever telescopic switch 6111 on the pusher handle 611, releasing the push-up lever lock mechanism, pushing down, and retracting the push-up hand lever 61 to the push-pull lever 62 Then, the pusher bar 50 is rotated relative to the support member, and the pusher bar lock mechanism is released by the interlocking engagement, the pusher bar 50 and the pusher bar 62 are unlocked, and the push is continued, so that the pusher bar 50 and the pusher are pushed down. The rod 62 is folded together.

Abstract

L'invention concerne une poussette pour bébé et un mécanisme rétractable associé, et un procédé de rétraction et de pliage d'une poussette pour bébé. Le mécanisme rétractable comprend deux structures latérales et des tiges horizontales (70, 80, 25, 65). Les structures latérales comprennent des tiges inférieures avant (10), des tiges inférieures arrière (20) et des tiges de poussée. Une tige de support avant (30) et une tige de support arrière (40) sont raccordées entre la tige inférieure avant (10) et la tige de poussée pour former un premier mécanisme à 4 tiges rétractable. Une première tige de raccordement séquentiellement raccordée (31) et une seconde tige de raccordement (32) passent entre la tige inférieure avant (10) et la tige inférieure arrière (20) pour former un second mécanisme à 4 tiges. Une extrémité de la première tige de raccordement (31) est fixement raccordée ou intégrée à une extrémité inférieure des tiges de support avant (30). Le premier mécanisme à 4 tiges agencé dans un état plié et une tige inférieure arrière (20) sont empilés en couches au niveau d'un côté supérieur et d'un côté inférieur de la tige inférieure avant (10), respectivement. Une extrémité supérieure de la tige de support arrière (40) et une partie intermédiaire de la tige de poussée sont fixées et verrouillées ou déverrouillées et pliées par un mécanisme de verrouillage. Le mécanisme rétractable présente une structure raisonnable, présente une taille réduite après avoir été plié et peut être actionné de manière simple et sans effort.
PCT/CN2016/095072 2015-12-24 2016-08-13 Poussette pour bébé et mécanisme rétractable associé, et procédé de rétraction et de pliage de poussette pour bébé WO2017107506A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN201521097733.8U CN205327138U (zh) 2015-12-24 2015-12-24 一种多维度折叠的儿童手推车
CN201521097733.8 2015-12-24
CN201521096372.5 2015-12-24
CN201521096372.5U CN205327137U (zh) 2015-12-24 2015-12-24 一种联动折叠的儿童手推车
CN201610381976.7A CN106428179B (zh) 2016-06-01 2016-06-01 儿童手推车及其收车机构、收车折叠方法
CN201610381976.7 2016-06-01

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CN107985377A (zh) * 2017-12-28 2018-05-04 苏州昂锐儿童用品有限公司 一种座兜架和车架均可折叠的婴儿推车
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CN108127632A (zh) * 2018-01-30 2018-06-08 国网宁夏电力有限公司银川供电公司 变压器呼吸器硅胶更换作业用工具箱
CN108297927A (zh) * 2018-04-08 2018-07-20 沈阳格乐商贸有限公司 一种应用于便携式儿童手推车上的折叠车架结构
CN108407876A (zh) * 2018-05-21 2018-08-17 好孩子儿童用品有限公司 一种儿童推车
CN108945072A (zh) * 2018-06-28 2018-12-07 唐满林 一种多功能助力车
CN109278838A (zh) * 2018-11-02 2019-01-29 好孩子儿童用品有限公司 儿童推车
CN109606021A (zh) * 2018-11-21 2019-04-12 好孩子儿童用品有限公司 锁定机构、车轮锁定机构及具有车轮锁定机构的儿童推车
CN109823387A (zh) * 2019-03-28 2019-05-31 太仓新奇乐婴儿用品有限公司 一种便于一键收车的婴儿推车
CN109965600A (zh) * 2019-04-29 2019-07-05 昆山爱思贝儿童用品有限公司 儿童用品折叠支架及儿童床
CN110667682A (zh) * 2019-09-20 2020-01-10 东莞金旺儿童用品有限公司 婴儿推车及其折叠方法

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CN108100010A (zh) * 2017-12-25 2018-06-01 深圳市秀宝婴童用品有限公司 一种可二次靠拢收车的婴儿手推车
CN107985377B (zh) * 2017-12-28 2023-10-13 苏州昂锐儿童用品有限公司 一种座兜架和车架均可折叠的婴儿推车
CN107985377A (zh) * 2017-12-28 2018-05-04 苏州昂锐儿童用品有限公司 一种座兜架和车架均可折叠的婴儿推车
CN108127632A (zh) * 2018-01-30 2018-06-08 国网宁夏电力有限公司银川供电公司 变压器呼吸器硅胶更换作业用工具箱
CN108127632B (zh) * 2018-01-30 2023-12-19 国网宁夏电力有限公司银川供电公司 变压器呼吸器硅胶更换作业用工具箱
CN108297927A (zh) * 2018-04-08 2018-07-20 沈阳格乐商贸有限公司 一种应用于便携式儿童手推车上的折叠车架结构
CN108297927B (zh) * 2018-04-08 2024-01-23 徐亮 一种应用于便携式儿童手推车上的折叠车架结构
CN108407876A (zh) * 2018-05-21 2018-08-17 好孩子儿童用品有限公司 一种儿童推车
CN108407876B (zh) * 2018-05-21 2024-04-05 好孩子儿童用品有限公司 一种儿童推车
CN108945072A (zh) * 2018-06-28 2018-12-07 唐满林 一种多功能助力车
CN109278838A (zh) * 2018-11-02 2019-01-29 好孩子儿童用品有限公司 儿童推车
CN109606021A (zh) * 2018-11-21 2019-04-12 好孩子儿童用品有限公司 锁定机构、车轮锁定机构及具有车轮锁定机构的儿童推车
CN109823387A (zh) * 2019-03-28 2019-05-31 太仓新奇乐婴儿用品有限公司 一种便于一键收车的婴儿推车
CN109965600A (zh) * 2019-04-29 2019-07-05 昆山爱思贝儿童用品有限公司 儿童用品折叠支架及儿童床
CN110667682A (zh) * 2019-09-20 2020-01-10 东莞金旺儿童用品有限公司 婴儿推车及其折叠方法
CN110667682B (zh) * 2019-09-20 2023-03-21 曼玛斯&帕帕斯控股有限公司 婴儿推车及其折叠方法

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