Folding baby carriage frame

Abstract

The utility model discloses a folding baby carriage frame which comprises a carriage body frame, a hand push rod and an unlocking mechanism, the carriage body frame is provided with a first clamping part, the hand push rod is rotatably connected to the carriage body frame, the unlocking mechanism is arranged on the hand push rod, the unlocking mechanism comprises an unlocking push rod, a linkage structure and a second clamping part, and the unlocking push rod is slidably connected to the hand push rod. The linkage structure is in transmission connection with the unlocking push rod and the second clamping part, the unlocking mechanism has a locking state and an unlocking state, in the locking state, the second clamping part can be clamped with the first clamping part so as to limit rotation of the hand push rod and the vehicle body frame, and in the unlocking state, the unlocking push rod can slidably drive the linkage structure so as to limit rotation of the hand push rod and the vehicle body frame. The linkage structure can drive the second clamping part to be separated from the first clamping part, so that the hand push rod and the vehicle body frame can rotate relative to each other. Unlocking is driven by the unlocking push rod, the structural strength is high, damage is not prone to occurring, the unlocking stability is good, and faults are not prone to occurring.

Description

TECHNICAL FIELD

[0001] The utility model relates to the related technical field of baby carriage, especially a folding baby carriage frame. BACKGROUND

[0002] The baby carriage is generally set to be foldable for convenient storage, and the user can fold and shrink the frame through the folding structure to reduce the occupied space and facilitate transportation or storage. UTILITY MODEL CONTENTS

[0003] The utility model aims at solving one of the technical problems in the prior art.

[0004] The folding baby carriage frame according to the first aspect of the utility model comprises a frame, a hand pushing rod and an unlocking mechanism.

[0005] The folding baby carriage frame according to the utility model has the following beneficial effects: when used normally, the unlocking mechanism is in the locked state, the hand pushing rod and the frame are locked through the first clamping part and the second clamping part; when folding is needed, the unlocking push rod is pushed to cooperate with the linkage structure, the linkage structure drives the second clamping part to be separated from the first clamping part, so that the hand pushing rod can be rotated and folded for storage.

[0006] According to some embodiments of the utility model, the linkage structure includes base, first transmission part, sliding block and second transmission part, the base is connected to the hand push rod, the base is equipped with first guide groove, the second transmission part is equipped with second guide groove, the sliding block is equipped in the first guide groove and second guide groove slidingly, the first transmission part is connected with the unlocking push rod, the first transmission part can cooperate with the sliding block to drive the sliding block to slide along the first guide groove, the sliding block can drive the second transmission part to slide along the hand push rod through the second guide groove to make the second clamping part and the first clamping part separate from clamping.

[0007] According to some embodiments of the utility model, the hand push rod has first track inside, the unlocking push rod is equipped in the first track slidingly, the sliding direction of the unlocking push rod has unlocking direction and locking direction, the first transmission part has first guide part, the first guide part is inclinedly arranged upwards along the unlocking direction, the first guide groove is arranged along the radial direction of the hand push rod, the second guide groove is inclinedly arranged downwards along the unlocking direction, the sliding block is arranged as slide column, the slide column passes through the first guide groove and the second guide groove, and the first guide part can abut against the side wall of the slide column.

[0008] According to some embodiments of the utility model, the elastic member is arranged between the second transmission part and the base, and the elastic member can drive the second transmission part to slide towards the first clamping part, so that the second clamping part is clamped in the first clamping part.

[0009] According to some embodiments of the utility model, the first clamping part is a clamping column, the second clamping part is a clamping groove, and the second transmission part is further provided with a second guide part, the second guide part can abut against the clamping column and guide the clamping groove to clamp with the clamping column.

[0010] According to some embodiments of the utility model, the vehicle body frame includes a front frame and a rear frame, the front frame is rotatably arranged on the rear frame, a linkage rod is arranged between the front frame and the hand push rod, when the hand push rod rotates, the linkage rod can drive the front frame to rotate.

[0011] According to some embodiments of the utility model, the front frame is provided with a first positioning part, the rear frame is provided with a second positioning part, in the locking state, the first positioning part can abut against and be positioned with the second positioning part.

[0012] According to some embodiments of the utility model, the unlocking push rod is provided with a holding part at one end away from the vehicle body frame.

[0013] According to some embodiments of the present application, the front frame comprises a rotating arm and a wheel frame, one end of the rotating arm is rotatably connected with the rear frame, and the wheel frame is arranged at one end of the rotating arm away from the rear frame.

[0014] According to some embodiments of the present application, the rear frame comprises a first fork arm and a second fork arm, and the upper parts of the first fork arm and the second fork arm are connected with each other.

[0015] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above or additional aspects and advantages of the present application will become apparent from the following description with reference to the accompanying drawings, wherein:

[0017] Figure 1 It is a general schematic view of the embodiment of the present application;

[0018] Figure 2 It is a schematic view in the folded state;

[0019] Figure 3 It is Figure 1 a sectional view;

[0020] Figure 4 It is Figure 2 a sectional view;

[0021] Figure 5 It is a structure exploded view of the unlocking mechanism.

[0022] Reference signs:

[0023] Vehicle body frame 100, first clamping part 110, front frame 120, first positioning part 121, rotating arm 122, wheel frame 123, rear frame 130, second positioning part 131, first fork arm 132, second fork arm 133, linkage rod 140;

[0024] Hand pushing rod 200, first track 210;

[0025] Unlocking mechanism 300, unlocking push rod 310, holding part 311, linkage structure 320, base 321, first guide groove 3211, first transmission member 322, first guide part 3221, sliding block 323, sliding column 3231, second transmission member 324, second guide groove 3241, second guide part 3242, second clamping part 330;

[0026] Elastic member 400. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and are not to be understood as limiting the present application.

[0028] In the description of the present application, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0029] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] Referring to Figures 1 to 4According to the first aspect of the utility model discloses a folding baby carriage frame, including car body frame 100, hand push rod 200, unlocking mechanism 300, car body frame 100 has first clamping portion 110, hand push rod 200 rotatablely connected in car body frame 100, unlocking mechanism 300 is located in hand push rod 200, unlocking mechanism 300 includes unlocking push rod 310, linkage structure 320 and second clamping portion 330, unlocking push rod 310 slidably connected in hand push rod 200, linkage structure 320 respectively with unlocking push rod 310 and second clamping portion 330 transmission connection, wherein, unlocking mechanism 300 has locking state and unlocking state, in locking state, second clamping portion 330 can with first clamping portion 110 clamping, to limit hand push rod 200 with the rotation of car body frame 100, in unlocking state, unlocking push rod 310 can slidably drive linkage structure 320, linkage structure 320 can drive second clamping portion 330 and first clamping portion 110 disengaging clamping, to make hand push rod 200 with car body frame 100 can rotate mutually.

[0031] Specifically, car body frame 100 is used to carry seat or seat basket, and hand push rod 200 is used to push the whole car body to move, in normal use, hand push rod 200 with car body frame 100 is fixedly connected through first clamping portion 110 and second clamping portion 330, and when needing to be stored, can be unlocked and stored through unlocking mechanism 300, unlocking push rod 310 is slidably arranged in hand push rod 200, unlocking push rod 310 is pushed, and unlocking push rod 310 is slidably connected with linkage structure 320, compared with traditional rope drive, the structural strength of unlocking push rod 310 is big, and unlocking push rod 310 can drive second clamping portion 330 and first clamping portion 110 disengaging clamping through linkage structure 320, and the specific linkage structure 320 is not limited here, after disengaging clamping, hand push rod 200 can be rotated and stored towards car body frame 100 to reduce the occupied space.

[0032] Referring to Figures 3 to 5In some embodiments of the utility model, linkage structure 320 includes base 321, first transmission member 322, sliding block 323 and second transmission member 324, base 321 is connected to hand push rod 200, base 321 is equipped with first guide slot 3211, second transmission member 324 is equipped with second guide slot 3241, sliding block 323 is slidably arranged in first guide slot 3211 and second guide slot 3241, first transmission member 322 is connected with unlocking push rod 310, first transmission member 322 can cooperate with sliding block 323 to drive sliding block 323 to slide along first guide slot 3211, sliding block 323 can drive second transmission member 324 to slide along hand push rod 200 through second guide slot 3241 to make second clamping portion 330 and first clamping portion 110 disengage. Specifically, base 321 is fixedly connected with hand push rod 200, first transmission member 322 is connected with the end of unlocking push rod 310, and unlocking push rod 310 can drive first transmission member 322 to slide when it is pushed, first transmission member 322 can drive sliding block 323 to slide when it slides, and sliding block 323 is slidably connected with first guide slot 3211 and second guide slot 3241, and base 321 is fixed on hand push rod 200, so that sliding block 323 can drive second transmission member 324 to move through second guide slot 3241 when it slides, so that second clamping portion 330 on second transmission member 324 can disengage from first clamping portion 110. The transmission structure described above is all sliding fit, stable in transmission, good in durability and not easy to be damaged.

[0033] Referring to Figures 3 to 5In some embodiments of the utility model, first rail 210 is arranged in hand push rod 200, unlocking push rod 310 is arranged in first rail 210, the sliding direction of unlocking push rod 310 has unlocking direction and locking direction, first transmission part 322 has first guide part 3221, first guide part 3221 is arranged to be inclined upwards along unlocking direction, first guide groove 3211 is arranged to extend along the radial direction of hand push rod 200, second guide groove 3241 is arranged to be inclined downwards along unlocking direction, slider 323 is arranged as slide column 3231, slide column 3231 passes through first guide groove 3211 and second guide groove 3241, and first guide part 3221 can abut against the side wall of slide column 3231. Specifically, hand push rod 200 can be hollow structure, the internal hollow part is first rail 210, unlocking push rod 310 can be inserted into first rail 210, and slide along first rail 210, and the sliding direction of unlocking push rod 310 towards hand push rod 200 is unlocking direction, and the locking direction is outward, when unlocking, unlocking push rod 310 slides towards unlocking direction, slider 323 is moved by first transmission part 322, slider 323 can be arranged as slide column 3231, slide column 3231 can be arranged in first guide groove 3211 and second guide groove 3241 simultaneously, so that it can be slidably connected with groove body respectively, when first transmission part 322 is driven, the inclined first guide part 3221 can drive slider 323 to slide downwards along first guide groove 3211, and during the sliding process, the inclined second guide groove 3241 is matched with slide column 3231, so that the up-down movement of slide column 3231 is converted into the sliding of second transmission part 324 along unlocking direction, thereby realizing unlocking.

[0034] Referring to Figures 3 to 5 In some embodiments of the utility model, elastic member 400 is arranged between second transmission part 324 and base 321, elastic member 400 can drive second transmission part 324 to slide towards first clamping part 110, so that second clamping part 330 is clamped on first clamping part 110. Specifically, elastic member 400 can be arranged as spring, elastic member 400 can drive second transmission part 324 to press tightly towards second clamping part 330, so that first clamping part 110 and second clamping part 330 are kept in clamping connection, when resetting from folding state, elastic member 400 can drive second clamping part 330 to be connected with first clamping part 110, which is convenient to use.

[0035] Referring to Figures 3 to 5 In some embodiments of the utility model, first clamping part 110 is clamping column, second clamping part 330 is clamping groove, and second transmission part 324 is further provided with second guide part 3242, second guide part 3242 can abut against clamping column and guide clamping groove to clamp on clamping column. It is convenient to clamp and connect, and it is not easy to jam, which is convenient to use.

[0036] Specifically, the end of the second transmission member 324 can be provided with a clamping groove, one side of the clamping groove is provided with a second guide portion 3242, the second guide portion 3242 can be provided with a rounded corner structure, and the first clamping portion 110 can be provided with a clamping column. When it is needed to reset from the folded state, the second guide portion 3242 can abut against the clamping column under the action force of the elastic member 400. When it is rotated to correspond to the clamping groove and the clamping column, the clamping connection can be achieved, and it is not easy to jam, thereby facilitating use.

[0037] With reference to Figures 1 to 4 In some embodiments of the utility model, the vehicle body frame 100 includes a front frame 120 and a rear frame 130, the front frame 120 is rotatably arranged on the rear frame 130, a linkage rod 140 is arranged between the front frame 120 and a hand push rod 200, and the linkage rod 140 can drive the front frame 120 to rotate when the hand push rod 200 rotates. The front frame 120 and the hand push rod 200 can be folded by the linkage rod 140, which can not only reduce the occupied space, but also facilitate folding operation.

[0038] Specifically, the front frame 120 can be provided with two front wheels, the rear frame 130 can be provided with two rear wheels, and the front frame 120 can be pivotally connected to the rear frame 130, so that the front frame 120 can be folded by rotation, thereby further reducing the occupied space. The linkage rod 140 is arranged between the front frame 120 and the hand push rod 200, one end of the linkage rod 140 is rotatably connected to the front frame 120, and the other end is rotatably connected to the hand push rod 200. When folding is needed, the hand push rod 200 can be driven to rotate and store the front frame 120 by the linkage rod 140 after being unlocked by the unlocking mechanism 300, which facilitates operation and further reduces the occupied volume.

[0039] With reference to Figures 3 to 4 In some embodiments of the utility model, the front frame 120 is provided with a first positioning portion 121, and the rear frame 130 is provided with a second positioning portion 131. In the locked state, the first positioning portion 121 can abut against and be positioned by the second positioning portion 131. Specifically, the first positioning portion 121 can be circumferentially protruded on the rotation center of the front frame 120, so that it can abut against the second positioning portion 131. When the front frame 120 is unfolded to the fully unfolded state, the first positioning portion 121 abuts against the second positioning portion 131. At this time, the second clamping portion 330 can be clamped and locked with the first clamping portion 110.

[0040] In some embodiments of the utility model, the unlocking push rod 310 is provided with a holding portion 311 at the end away from the vehicle body frame 100. Specifically, the holding portion 311 of the unlocking push rod 310 can be held and pushed by a person.

[0041] With reference to Figures 1 to 2In some embodiments of the utility model, the front frame 120 includes a rotating arm 122 and a wheel frame 123, one end of the rotating arm 122 is rotatably connected with the rear frame 130, and the wheel frame 123 is arranged at one end of the rotating arm 122 away from the rear frame 130. Specifically, the front frame 120 can be connected with the rear frame 130 through a rotating arm 122, the volume of the front frame 120 can be reduced, and wheels can be installed on both sides of the wheel frame 123 for the vehicle body to walk.

[0042] Referring to Figures 1 to 2 In some embodiments of the utility model, the rear frame 130 includes a first fork arm 132 and a second fork arm 133, and the upper parts of the first fork arm 132 and the second fork arm 133 are connected with each other. Specifically, the rear frame 130 can be supported by the first fork arm 132 and the second fork arm 133, the structure has high strength, when the structure is stored, the rotating arm 122 can be rotated to the space between the first fork arm 132 and the second fork arm 133, the space can be fully utilized, and the volume of the structure can be further reduced.

[0043] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A foldable stroller frame, characterized by, The utility model relates to a handcart, which comprises: a vehicle frame (100) having a first clamping part (110); a hand push rod (200) rotatably connected to the vehicle frame (100); an unlocking mechanism (300) provided on the hand push rod (200), the unlocking mechanism (300) comprising an unlocking push rod (310), a linkage structure (320) and a second clamping part (330), the unlocking push rod (310) being slidably connected to the hand push rod (200), the linkage structure (320) being in driving connection with the unlocking push rod (310) and the second clamping part (330) respectively; wherein the unlocking mechanism (300) has a locked state and an unlocked state, in the locked state, the second clamping part (330) can be clamped with the first clamping part (110) to restrict the rotation of the hand push rod (200) and the vehicle frame (100), in the unlocked state, the unlocking push rod (310) can slidably drive the linkage structure (320), and the linkage structure (320) can drive the second clamping part (330) to disengage from the first clamping part (110) so that the hand push rod (200) and the vehicle frame (100) can rotate relative to each other.

2. A foldable stroller frame according to claim 1, wherein, The linkage structure (320) comprises a base (321), a first transmission member (322), a sliding block (323) and a second transmission member (324), the base (321) being connected to the hand push rod (200), the base (321) being provided with a first guide groove (3211), the second transmission member (324) being provided with a second guide groove (3241), the sliding block (323) being slidably arranged in the first guide groove (3211) and the second guide groove (3241), the first transmission member (322) being connected with the unlocking push rod (310), the first transmission member (322) being capable of cooperating with the sliding block (323) to drive the sliding block (323) to slide along the first guide groove (3211), and the sliding block (323) being capable of driving the second transmission member (324) to slide along the hand push rod (200) through the second guide groove (3241) to disengage the second clamping part (330) from the first clamping part (110).

3. A foldable stroller frame according to claim 2, wherein, The hand push rod (200) has a first track (210) therein, the unlocking push rod (310) is slidingly arranged in the first track (210), the sliding direction of the unlocking push rod (310) has an unlocking direction and a locking direction, the first transmission member (322) has a first guide portion (3221), the first guide portion (3221) is arranged to be inclined upward along the unlocking direction, the first guide groove (3211) is arranged to extend along the radial direction of the hand push rod (200), the second guide groove (3241) is arranged to be inclined downward along the unlocking direction, the sliding block (323) is arranged as a sliding column (3231), the sliding column (3231) penetrates through the first guide groove (3211) and the second guide groove (3241), and the first guide portion (3221) can abut against the side wall of the sliding column (3231).

4. The foldable stroller frame of claim 2, wherein, An elastic member (400) is further arranged between the second transmission member (324) and the base (321), the elastic member (400) can drive the second transmission member (324) to slide towards the first clamping portion (110), so that the second clamping portion (330) is clamped on the first clamping portion (110).

5. A foldable stroller frame according to claim 4, wherein, The first clamping portion (110) is a clamping column, the second clamping portion (330) is a clamping groove, and the second transmission member (324) further has a second guide portion (3242), the second guide portion (3242) can abut against the clamping column and guide the clamping groove to clamp on the clamping column.

6. The foldable stroller frame of claim 1, wherein, The vehicle body frame (100) comprises a front frame (120) and a rear frame (130), the front frame (120) is rotatably arranged on the rear frame (130), a linkage rod (140) is arranged between the front frame (120) and the hand push rod (200), when the hand push rod (200) rotates, the linkage rod (140) can drive the front frame (120) to rotate.

7. A foldable stroller frame according to claim 6, wherein, The front frame (120) is provided with a first positioning portion (121), the rear frame (130) is provided with a second positioning portion (131), in the locking state, the first positioning portion (121) can abut against and position the second positioning portion (131).

8. The foldable stroller frame of claim 2, wherein, The unlocking push rod (310) is provided with a holding portion (311) at one end away from the vehicle body frame (100).

9. The foldable stroller frame of claim 6, wherein, The front frame (120) comprises a rotating arm (122) and a wheel frame (123), one end of the rotating arm (122) is rotatably connected with the rear frame (130), and the wheel frame (123) is arranged at one end of the rotating arm (122) away from the rear frame (130).

10. A foldable stroller frame according to claim 9, wherein, The rear frame (130) comprises a first fork arm (132) and a second fork arm (133), the upper portions of the first fork arm (132) and the second fork arm (133) are connected with each other.

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