Baby carriage frame

Abstract

The utility model relates to the field of baby carriage production, in particular to a baby carriage frame, which comprises a handrail, a front leg and a rear leg arranged on the lower side of the handrail, the front leg positioned on the front side of the rear leg, a seat plate arranged between the front leg and the rear leg, and two groups of trigger mechanisms and locking mechanisms for connecting the handrail, the front leg and the rear leg. A locking fluted disc between the front leg overturning seat and the armrest overturning seat is used for carrying out primary locking on the front leg overturning seat and the armrest overturning seat, and meanwhile, a lock tongue on the locking fluted disc is used for carrying out secondary locking on a lock catch insertion plate on a sliding seat, so that a front leg connecting rod and an armrest connecting rod on the sliding seat are used for forming triangular stable support at the connecting position of an armrest, a front leg and a rear leg; and the stability and the safety of the whole frame are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to children's pushchair production field, in particular to a children's pushchair frame. BACKGROUND

[0002] Children's pushchair refers to a traffic tool for carrying children to go out, and children can sit on the seat of the pushchair when going out, and then the guardian pushes the pushchair to go forward, the pushchair on the market generally includes front wheel rod, rear wheel rod, hand push rod and seat, in order to save space and facilitate carrying and storage, the front wheel rod, rear wheel rod and hand push rod can be linked and folded, and the folding structure and principle are different, and the existing pushchair is generally fixed through the lock catch structure of the front leg and handrail when folding, and these lock catch structures are generally locked through a lock shaft to the front leg and handrail at the same time, and then the lock catch structure not only locks but also bears the pushing force when pushing the pushchair, and the whole lock catch structure is unstable after long time use, and the firmness of the whole lock catch structure is also reduced. SUMMARY

[0003] The utility model aims at solving the above -mentioned problem and provides a children's pushchair frame.

[0004] The utility model realizes the above -mentioned purpose through the following technical scheme:

[0005] A children's pushchair frame, including handrail, the lower side of handrail is equipped with front leg and rear leg, and the front leg is located at the front side of rear leg, and the seat plate is arranged between the front leg and rear leg, and the utility model further includes two groups of trigger mechanism and locking mechanism for connecting handrail, front leg and rear leg;

[0006] Each group of trigger mechanism includes rear leg turnover seat, and the side close to seat plate of rear leg turnover seat is rotatably connected with handrail turnover seat, and the front leg turnover seat is rotatably connected between rear leg turnover seat and handrail turnover seat;

[0007] The trigger button is slidably connected at the central position of rear leg turnover seat, and the end of trigger button is provided with locking tooth disc through front leg turnover seat, and the side of front leg turnover seat and handrail turnover seat close to each other is provided with the matching tooth slot for allowing locking tooth disc to slide along its axial direction;

[0008] Each group of locking mechanism includes sliding seat, and the sliding seat is slidably connected on rear leg, and the side close to seat plate of sliding seat is respectively hinged with front leg connecting rod and handrail connecting rod distributed in V shape, and the locking catch insert plate is fixed on sliding seat and arranged along the axial direction of rear leg;

[0009] The front leg turnover seat is provided with locking slot corresponding to the position of locking catch insert plate for allowing insertion, and the locking tongue is fixed on locking tooth disc close to locking catch slot, and the tongue hole is arranged on the upper end of locking catch insert plate for allowing locking tongue to insert.

[0010] Preferably, the upper end of the front leg connecting rod is rotationally connected with the front leg, and the upper end of the handrail connecting rod is rotationally connected with the handrail.

[0011] Preferably, the locking tooth disc is provided with a spring groove on the side close to the handrail turnover seat, and a spring for pushing the locking tooth disc into the front leg turnover seat is arranged in the spring groove, and the end of the spring away from the locking tooth disc is arranged in the matching tooth groove of the handrail turnover seat.

[0012] Preferably, two symmetrical universal wheels are fixed to the lower end of the front leg, and two symmetrical rotating wheels are arranged at the lower end of the rear leg, and each rotating wheel is provided with a corresponding brake structure.

[0013] Preferably, an arc-shaped groove for allowing the trigger button to push the locking tooth disc is arranged on the rear leg turnover seat.

[0014] Preferably, a plug hole for allowing the lock tongue to be inserted is arranged on the upper end of the lock plug plate.

[0015] Compared with the prior art, the beneficial effects are as follows:

[0016] The locking tooth disc between the front leg turnover seat and the handrail turnover seat is used to perform primary locking on the two, and the lock tongue on the locking tooth disc is used to perform secondary locking on the lock plug plate on the sliding seat, so that the front leg connecting rod and the handrail connecting rod on the sliding seat are used to form triangular stable support at the connection position of the handrail, the front leg and the rear leg, thereby improving the stability and safety of the whole frame. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a structural schematic view of a child stroller frame according to the present application;

[0019] Figure 2 is a cooperation view of a trigger button and a locking tooth disc of a child stroller frame according to the present application;

[0020] Figure 3 is an exploded view of a trigger mechanism and a locking mechanism of a child stroller frame according to the present application;

[0021] Figure 4 is a partial sectional view of a trigger mechanism of a child stroller frame according to the present application;

[0022] Figure 5Is the trigger button, locking gear and armrest turnover seat cooperation map of the utility model discloses a child's handcart frame;

[0023] Figure 6 Is the trigger button and front leg turnover seat cooperation map of the utility model discloses a child's handcart frame;

[0024] Figure 7 Is the locking mechanism partial parts view of the utility model discloses a child's handcart frame.

[0025] The sign of the drawing mark is as follows:

[0026] 1, armrest;2, front leg;3, trigger mechanism;4, locking mechanism;5, rear leg;6, cooperation gear slot;7, seat plate;31, rear leg turnover seat;32, front leg turnover seat;33, armrest turnover seat;34, trigger button;35, locking gear;36, lock tongue;311, arc slot;321, tongue hole;322, lock catch slot;41, sliding seat;42, front leg connecting rod;43, armrest connecting rod;44, lock catch plugboard. DETAILED DESCRIPTION

[0027] In the description of the utility model, need explanation, unless another explicit stipulation and limitation, term " install " " link " " connect " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two element inside intercommunication. For ordinary skilled in the art, can understand the concrete meaning of the above-mentioned term in the utility model through specific circumstances.

[0028] The utility model is further described below in conjunction with the drawings:

[0029] As Figures 1-7 Shown, a child's handcart frame, including armrest 1, armrest 1 lower side is equipped with front leg 2 and rear leg 5, front leg 2 is located rear leg 5 front side, and front leg 2 and rear leg 5 are equipped with seat plate 7 between, and front leg 2 lower end is fixed with two symmetrical universal wheels, rear leg 5 lower end is equipped with two symmetrical rotating wheels, and every rotating wheel is equipped with corresponding brake structure, still include two groups of trigger mechanism 3 and locking mechanism 4 for connecting armrest 1, front leg 2 and rear leg 5.

[0030] In the embodiment: each set of trigger mechanism 3 comprises a back leg turnover seat 31, a handrail turnover seat 33 is rotatably connected to one side of the back leg turnover seat 31 close to the seat plate 7, a front leg turnover seat 32 is rotatably connected between the back leg turnover seat 31 and the handrail turnover seat 33, a trigger button 34 is slidably connected to the center of the back leg turnover seat 31, the trigger button 34 is provided with a locking tooth disc 35 at one end passing through the front leg turnover seat 32, the front leg turnover seat 32 and the handrail turnover seat 33 are both provided with a matching tooth groove 6 on the side close to each other for the locking tooth disc 35 to slide along the axial direction, the locking tooth disc 35 is provided with a spring groove on the side close to the handrail turnover seat 33, and a spring is arranged in the spring groove for pushing the locking tooth disc 35 to be clamped into the front leg turnover seat 32, the end of the spring away from the locking tooth disc 35 abuts against the matching tooth groove 6 of the handrail turnover seat 33, the back leg turnover seat 31 is provided with an arc-shaped groove 311 for the trigger button 34 to push the locking tooth disc 35, the lock plug plate 44 is provided with a plug hole at the upper end for the locking tongue 36 to insert, by pressing the trigger button 34 to pass through the arc-shaped groove 311 to completely push the locking tooth disc 35 at the abutting surface of the front leg turnover seat 32 and the handrail turnover seat 33 into the matching tooth groove 6 of the handrail turnover seat 33, the locking tooth disc 35 is disengaged from the locking of the front leg turnover seat 32 and the handrail turnover seat 33, so that the front leg turnover seat 32 and the handrail turnover seat 33 can rotate coaxially, when the locking tooth disc 35 is pushed into the matching tooth groove 6 of the handrail turnover seat 33, the locking tongue 36 will exit the tongue hole 321 and be disengaged from the locking of the lock plug plate 44, so that the sliding seat 41 can slide on the back leg 5, so that the front leg connecting rod 42 and the handrail connecting rod 43 are disengaged from the locking support of the front leg 2 and the handrail 1 to fold, so that the back leg 5 is turned and folded to the front leg 2 direction on the front side.

[0031] In the embodiment: each set of locking mechanism 4 comprises a sliding seat 41 which is slidingly connected on the rear leg 5, the sliding seat 41 is respectively hinged with a front leg connecting rod 42 and a handrail connecting rod 43 which are V-shapedly distributed near one side of the seat plate 7, the sliding seat 41 is fixed with a lock plug inserting plate 44 which is arranged along the axis of the rear leg 5, the front leg turnover seat 32 is provided with a lock slot 322 at the position corresponding to the lock plug inserting plate 44 for inserting the lock plug inserting plate 44, the locking tooth disc 35 is fixed with a lock tongue 36 near the lock slot 322, and the lock slot 322 is provided with a tongue hole 321 for inserting the upper end of the lock plug inserting plate 44, the upper end of the front leg connecting rod 42 is rotationally connected with the front leg 2, and the upper end of the handrail connecting rod 43 is rotationally connected with the handrail 1, the handrail 1 and the rear leg 5 are lifted to be supported by the front leg 2, the trigger button 34 is pressed to make the locking tooth disc 35 drive the lock tongue 36 to exit the insertion hole of the lock plug inserting plate 44, the handrail 1 is turned over to be folded to the position of the rear leg 5 with the handrail turnover seat 33 as the center, at this time, the handrail connecting rod 43 on the handrail 1 pushes the sliding seat 41 to move downward along the rear leg 5, so that the lock plug inserting plate 44 exits from the lock slot 322 of the front leg turnover seat 32, and the front leg connecting rod 42 and the handrail connecting rod 43 are folded to each other, in the process, the rear leg 5 starts to fold to the front leg 2 with the rear leg turnover seat 31 as the center, at this time, the seat plate 7 is turned over from the horizontal state to the vertical state, and the folding of the whole frame is completed when the front leg 2, the handrail 1 and the rear leg 5 are completely merged together.

[0032] Working principle: when the frame needs to be folded, the handrail 1 and the rear leg 5 are lifted to be supported by the front leg 2, the trigger button 34 is pressed to make the locking tooth disc 35 be pushed by the arc-shaped slot 311 of the rear leg turnover seat 31, so that the locking tooth disc 35 at the abutting surface of the front leg turnover seat 32 and the handrail turnover seat 33 completely enters the matching tooth groove 6 of the handrail turnover seat 33, at this time, the front leg turnover seat 32 and the handrail turnover seat 33 are unlocked, and the front leg turnover seat 32 and the handrail turnover seat 33 can be coaxially rotated, when the locking tooth disc 35 is pushed into the matching tooth groove 6 of the handrail turnover seat 33, the locking tooth disc 35 drives the lock tongue 36 to exit the insertion hole of the lock plug inserting plate 44, the handrail 1 is turned over to be folded to the position of the rear leg 5 with the handrail turnover seat 33 as the center, at this time, the handrail connecting rod 43 on the handrail 1 pushes the sliding seat 41 to move downward along the rear leg 5, so that the lock plug inserting plate 44 exits from the lock slot 322 of the front leg turnover seat 32, and the front leg connecting rod 42 and the handrail connecting rod 43 are folded to each other, in the process, the rear leg 5 starts to fold to the front leg 2 with the rear leg turnover seat 31 as the center, at this time, the seat plate 7 is turned over from the horizontal state to the vertical state, and the folding of the whole frame is completed when the front leg 2, the handrail 1 and the rear leg 5 are completely merged together;

[0033] When the folded frame needs to be opened, the handrail 1 is turned up and the sliding seat 41 is pulled up through the handrail connecting rod 43 to turn the rear leg 5 away from the front leg 2, and at the same time the sliding seat 41 also slides along the rear leg 5 to the rear leg turning seat 31, thereby making the handrail 1, the front leg 2 and the rear leg 5 turn away from each other, after the lock plug 44 is inserted into the lock slot 322, the cooperating tooth grooves 6 of the front leg turning seat 32 and the handrail turning seat 33 correspond to each other, and through the action of the spring, the locking tooth disc 35 in the handrail turning seat 33 is clamped into the position between the cooperating tooth grooves 6 of the front leg turning seat 32 and the handrail turning seat 33, so that the front leg turning seat 32 and the handrail turning seat 33 are locked, and at the same time the locking tongue 36 of the locking tooth disc 35 passes through the tongue hole 321 and is inserted into the insertion hole of the lock plug 44, thereby fixing the lock plug 44, avoiding the sliding of the sliding seat 41 along the rear leg 5.

[0034] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A child's pushchair frame comprising an armrest (1) having a front leg (2) and a rear leg (5) located forwardly of the front leg (2), a seat (7) being provided between the front leg (2) and the rear leg (5), characterised in that: Also include two groups of trigger mechanism (3) and locking mechanism (4) for connecting armrest (1), front leg (2) and rear leg (5); Each group of trigger mechanism (3) includes rear leg turnover seat (31), which is rotatably connected with armrest turnover seat (33) near one side of seat plate (7), and front leg turnover seat (32) is rotatably connected between rear leg turnover seat (31) and armrest turnover seat (33); The center position of rear leg turnover seat (31) is slidably connected with trigger button (34), one end of trigger button (34) passes through front leg turnover seat (32) and is provided with locking gear (35), and the side of front leg turnover seat (32) and armrest turnover seat (33) abutting each other is provided with matching gear slot (6) for allowing locking gear (35) to slide along the axial direction thereof; Each group of locking mechanism (4) includes sliding seat (41), which is slidably connected on rear leg (5), and front leg connecting rod (42) and armrest connecting rod (43) are respectively hinged on one side of sliding seat (41) near seat plate (7) in V-shaped distribution, and sliding seat (41) is fixed with lock catch insert plate (44) arranged along the axial direction of rear leg (5); Corresponding position of front leg turnover seat (32) and lock catch insert plate (44) is provided with lock catch slot (322) for allowing the insertion thereof, lock tongue (36) is fixed on locking gear (35) near lock catch slot (322), and tongue hole (321) is provided at lock catch slot (322) for allowing lock tongue (36) to be inserted into the upper end of lock catch insert plate (44).

2. A child's pushchair frame according to claim 1, wherein: The upper end of front leg connecting rod (42) is rotatably connected with front leg (2), and the upper end of armrest connecting rod (43) is rotatably connected with armrest (1).

3. A child's push chair frame according to claim 1, wherein: The side of locking gear (35) near armrest turnover seat (33) is provided with spring groove, and spring groove is provided with spring for pushing locking gear (35) to be clamped in front leg turnover seat (32), and the end of spring away from locking gear (35) abuts against matching gear slot (6) of armrest turnover seat (33).

4. A child's carriage frame according to claim 1, wherein: The lower end of front leg (2) is fixed with two symmetrical universal wheels, the lower end of rear leg (5) is provided with two symmetrical rotating wheels, and each rotating wheel is provided with corresponding brake structure.

5. A child's carriage frame according to claim 1, wherein: Arc-shaped slot (311) is provided on rear leg turnover seat (31) for allowing trigger button (34) to push locking gear (35).

6. A child's carriage frame according to claim 1, wherein: The upper end of lock catch insert plate (44) is provided with insertion hole for allowing lock tongue (36) to be inserted.

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