Foldable baby stroller with wide front part and narrow rear part

Abstract

The utility model discloses a foldable baby stroller with a wide front part and a narrow rear part, which comprises a baby carriage and is characterized in that the front part of the baby carriage is provided with a grab rail, the end part of the grab rail is movably connected with a push handle supporting rod, the middle part of the baby carriage is provided with a seat cushion frame, and the bottom of the seat cushion frame is movably provided with a lower connecting rod; the bottom of the baby carriage is supported through the rear wheel support assembly and the front wheel support assembly. The front wheel support assembly comprises a wheel carrier, and the wheel carrier is movably connected with a walking wheel through a pin shaft. According to the foldable baby stroller with the wide front part and the narrow rear part, a button is pressed, at the moment, the button drives a locking block and a connecting piece to transversely move through two sets of connecting rods, the locking block is disengaged in a locking groove, locking limitation between an inserting groove and an inserting base is lost, a wheel frame and walking wheels can be disassembled, and the damaged wheel frame and walking wheels can be replaced; the disassembly and replacement mode does not need external tools, and replacement is simple, rapid, time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to the field of baby strollers, in particular to a foldable baby stroller which is wide at the front and narrow at the back. Background Art

[0002] A folding baby stroller is a stroller that is easy to carry and store. It can usually be folded into a smaller size for easy storage and carrying. This stroller has many advantages, such as being lightweight, easy to operate, and taking up little space. When choosing a folding baby stroller, you can consider the following factors:

[0003] Safety: Make sure the stroller has a stable structure, reliable brake system and safety belts to ensure the safety of your baby;

[0004] Comfort: Choose a stroller with a comfortable seat, adjustable backrest and footrest to make your baby feel comfortable while riding;

[0005] Portability: If you need to carry the stroller frequently, a lightweight model will be more convenient;

[0006] Folding ease: Check whether the folding mechanism of the cart is simple and easy to use, and whether the folded size is convenient for carrying and storage;

[0007] Quality and durability: Choose a high-quality, durable stroller that can withstand daily use and frequent folding;

[0008] The bottom of the baby folding stroller is supported and moved by two sets of front wheels and two sets of rear wheels. The wheels at the bottom of the baby folding stroller are easily damaged for the following two reasons:

[0009] Frequent use: Strollers are often used, and the wheels are under great pressure and are prone to wear and tear;

[0010] Road conditions: Different road conditions have different effects on the wheels. For example, rough roads and gravel roads will accelerate the wear of the wheels.

[0011] The wheels at the bottom of the baby folding stroller are fixed by bolts. When replacing, external tools are needed. Without tools, it is impossible to disassemble and replace. The screw connection is prone to thread slippage, which makes it more difficult to disassemble the wheels. Utility Model Content

[0012] The utility model aims to provide a foldable baby stroller which is wide at the front and narrow at the back, so as to solve the defects mentioned in the above-mentioned background technology.

[0013] To achieve the above object, a foldable baby stroller with a wide front and narrow rear is provided, comprising a baby stroller, characterized in that: a handrail is arranged at the front of the baby stroller, and the end of the handrail is movably connected to a push handle support rod, a seat frame is installed in the middle of the baby stroller, and a lower connecting rod is movably installed at the bottom of the seat frame, and the bottom of the baby stroller is supported by a rear wheel bracket assembly and a front wheel bracket assembly;

[0014] The front wheel bracket assembly includes a wheel frame, and the wheel frame is movably connected to the running wheel through a pin shaft, and a mounting seat is arranged on the top of the wheel frame, and the mounting seat and the wheel frame are connected through a quick-release quick-install assembly;

[0015] The quick-release quick-install assembly includes a socket, and the bottom of the socket is welded and fixed to the wheel frame. At the same time, a socket groove is opened at the bottom of the mounting seat, and an installation area is opened inside the bottom of the mounting seat. A button is installed at the end of the installation area, and a connecting rod is fixed on the left side wall of the button. At the same time, the end of the connecting rod away from the button is fixed to the connecting piece, and the surface of the connecting piece is screwed to fix the locking block, and a locking groove is opened on the side wall of the socket.

[0016] In one embodiment, the sizes of the plug-in slot and the plug-in socket are matched, and the length of the plug-in socket is equal to the depth of the plug-in slot, and the plug-in socket is plugged into the inside of the plug-in slot.

[0017] In one embodiment, the mounting seat and the wheel frame are positioned and mounted via a plug-in slot and a plug-in seat, and the cross-sections of the plug-in slot and the plug-in seat are both rectangular.

[0018] In one embodiment, the first guide rod and the second guide rod are fixedly installed inside the installation area, and two groups of first guide rods are provided. At the same time, the two groups of first guide rods are respectively inserted into the guide holes opened at both ends of the button and the connecting piece.

[0019] In one embodiment, the second guide rods are provided in two groups, and springs are installed on both groups of second guide rods. Meanwhile, both groups of second guide rods are inserted into guide holes opened on both sides of the middle of the connecting piece.

[0020] In one embodiment, the sizes of the locking slot and the locking block are matched, and the locking block is inserted into the locking slot, and both the locking slot and the locking block are rectangular.

[0021] In one embodiment, the connector is inserted into the connector slot and locked and released by a locking slot and a locking block. By pressing a button, the locking slot and the locking block are disengaged to complete the removal of the wheel frame and the running wheels from the bottom of the stroller.

[0022] In one embodiment, the button, two groups of connecting rods and the connecting piece are combined together to form a "mouth" shape, and the corners at the end of the button are arc-shaped.

[0023] In one embodiment, the first guide rod and the second guide rod are arranged in parallel, and the length of the second guide rod is smaller than the length of the first guide rod.

[0024] In one embodiment, the button is a "T"-shaped structure made of plastic material, and the button drives the locking block and the connecting piece to move horizontally through two sets of connecting rods.

[0025] Compared with the prior art, the beneficial effects of the utility model are: when the button is pressed, the button drives the locking block and the connecting plate to move horizontally through two sets of connecting rods, so that the locking block is disengaged from the inside of the lock groove, and the locking restriction between the plug-in groove and the plug-in seat is lost, the wheel frame and the running wheel can be disassembled, and the damaged wheel frame and running wheel can be replaced. The disassembly and replacement method does not require the aid of external tools, and the replacement is simple, fast, time-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a schematic diagram of the front view of the structure of the utility model;

[0028] Figure 2 The utility model structure Figure 1 Make a folding diagram;

[0029] Figure 3 This is a schematic diagram of the structure of the front wheel bracket assembly of the utility model;

[0030] Figure 4 The utility model structure Figure 3 Side view of

[0031] Figure 5 This is a schematic diagram of the structure of the quick-disassembly and quick-assembly components of the utility model;

[0032] Figure 6 The utility model structure Figure 5 AA section structure schematic diagram in;

[0033] Figure 7 The utility model structure Figure 6 Schematic diagram of pressing buttons.

[0034] The following are the descriptions of the reference numerals:

[0035] 1. Baby carriage; 2. Handrail; 3. Cushion frame; 4. Lower connecting rod; 5. Push handle support rod; 6. Rear wheel bracket assembly; 7. Front wheel bracket assembly; 71. Mounting seat; 72. Wheel frame; 73. Running wheel; 74. Quick release and quick assembly assembly; 741. Plug slot; 742. Plug seat; 743. Locking slot; 744. Locking block; 745. Connecting piece; 746. Connecting rod; 747. Installation area; 748. Button; 749. First guide rod; 7491. Second guide rod; 7492. Spring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0040] See also Figure 1-7 The utility model provides a foldable baby stroller which is wide at the front and narrow at the back, comprising a baby stroller 1, a handrail rod 2 is arranged at the front of the baby stroller 1, and the end of the handrail rod 2 is movably connected with a push handle support rod 5, a seat cushion frame 3 is installed in the middle of the baby stroller 1, and a lower connecting rod 4 is movably installed at the bottom of the seat cushion frame 3, and the bottom of the baby stroller 1 is supported by a rear wheel bracket assembly 6 and a front wheel bracket assembly 7;

[0041] The front wheel support assembly 7 includes a wheel frame 72, and the wheel frame 72 is movably connected to the running wheel 73 through a pin shaft. At the same time, a mounting seat 71 is arranged on the top of the wheel frame 72, and the mounting seat 71 and the wheel frame 72 are connected through a quick release assembly 74;

[0042] The quick-release and quick-install assembly 74 includes a plug-in seat 742, and the bottom of the plug-in seat 742 is welded and fixed to the wheel frame 72. At the same time, a plug-in groove 741 is opened at the bottom of the mounting seat 71, and an installation area 747 is opened inside the bottom end of the mounting seat 71. A button 748 is installed at the end of the installation area 747, and a connecting rod 746 is fixedly set on the left side wall of the button 748. At the same time, the end of the connecting rod 746 away from the button 748 is fixed to the connecting piece 745, and the surface of the connecting piece 745 is screwed to fix the locking block 744, and a locking groove 743 is opened on the side wall of the plug-in seat 742.

[0043] Working principle: The disassembly methods of the running wheels 73 at the bottom of the rear wheel bracket assembly 6 and the front wheel bracket assembly 7 are the same, and only the installation and disassembly methods of the running wheels 73 at the bottom of the front wheel bracket assembly 7 are described here;

[0044] By pressing the button 748, the button 748 drives the locking block 744 and the connecting piece 745 to move horizontally through the two sets of connecting rods 746, so that the locking block 744 is disengaged from the inside of the locking groove 743, and the locking restriction between the plug-in groove 741 and the plug-in seat 742 is lost, so that the wheel frame 72 and the running wheel 73 can be disassembled, and the damaged wheel frame 72 and the running wheel 73 can be replaced. The disassembly and replacement method does not require the aid of external tools, and the replacement is simple, fast, time-saving and labor-saving.

[0045] As a preferred implementation, the sizes of the plug-in slot 741 and the plug-in seat 742 match each other, and the length of the plug-in seat 742 is equal to the depth of the plug-in slot 741 , while the plug-in seat 742 is plugged into the inside of the plug-in slot 741 .

[0046] The mounting seat 71 and the wheel frame 72 are positioned and installed via the plug-in slot 741 and the plug-in seat 742 , and the cross-sections of the plug-in slot 741 and the plug-in seat 742 are both rectangular.

[0047] like Figure 5-7 As shown: the wheel frame 72 is at the bottom of the mounting seat 71, and is quickly positioned and installed through the plug-in slot 741 and the plug-in seat 742; and through the setting of the locking slot 743 and the locking block 744, the plug-in seat 742 is locked inside the plug-in slot 741, and the plug-in slot 741 and the plug-in seat 742 will not be separated.

[0048] As a preferred embodiment, the first guide rod 749 and the second guide rod 7491 are fixedly installed inside the installation area 747, and two groups of first guide rods 749 are provided. At the same time, the two groups of first guide rods 749 are respectively inserted into the guide holes opened at both ends of the button 748 and the connecting piece 745.

[0049] The second guide rods 7491 are provided in two groups, and springs 7492 are installed on the two groups of second guide rods 7491 . Meanwhile, the two groups of second guide rods 7491 are inserted into the guide holes opened on both sides of the middle part of the connecting piece 745 .

[0050] like Figure 3-7 As shown: the setting of the second guide rod 7491 and the first guide rod 749 can limit and guide the button 748 and the connecting piece 745 during movement, thereby ensuring the stability of the button 748 and the connecting piece 745 during movement and preventing them from tilting.

[0051] As a preferred implementation, the sizes of the locking slot 743 and the locking block 744 are matched, and the locking block 744 is inserted into the interior of the locking slot 743 . Both the locking slot 743 and the locking block 744 are rectangular.

[0052] The connector 742 is inserted into the connector slot 741 to be locked and released through the lock slot 743 and the lock block 744, and by pressing the button 748, the lock slot 743 and the lock block 744 are disengaged to complete the disassembly of the wheel frame 72 and the running wheel 73 at the bottom of the stroller 1.

[0053] like Figure 3-7 As shown: the locking slot 743 and the locking block 744 are both rectangular in shape; the locking block 744 is inserted into the locking slot 743, and the spring 7492 is in a normal state at this time. When the button 748 is pressed, the locking slot 743 and the locking block 744 are disengaged, and the spring 7492 is compressed, so that when the button 748 is released, the locking block 744 can return to its initial state.

[0054] The button 748, two groups of connecting rods 746 and the connecting piece 745 are combined together to form a "mouth" shape, and the corners at the end of the button 748 are set in an arc shape.

[0055] As a preferred embodiment, the first guide rod 749 and the second guide rod 7491 are arranged in parallel, and the length of the second guide rod 7491 is smaller than the length of the first guide rod 749 .

[0056] The button 748 is a "T"-shaped structure made of plastic material, and the button 748 drives the locking block 744 and the connecting piece 745 to move horizontally through two sets of connecting rods 746.

[0057] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A foldable baby stroller that is wide at the front and narrow at the back, comprising a baby stroller (1), characterized in that: The front part of the baby carriage (1) is provided with a handrail (2), and the end of the handrail (2) is movably connected to a push handle support rod (5); a seat cushion frame (3) is installed in the middle part of the baby carriage (1), and a lower connecting rod (4) is movably installed at the bottom of the seat cushion frame (3); the bottom of the baby carriage (1) is supported by a rear wheel bracket assembly (6) and a front wheel bracket assembly (7); The front wheel support assembly (7) comprises a wheel frame (72), and the wheel frame (72) is movably connected to a running wheel (73) via a pin shaft, and a mounting seat (71) is arranged on the top of the wheel frame (72), and the mounting seat (71) and the wheel frame (72) are connected via a quick-release quick-install assembly (74); The quick-release quick-install component (74) includes a plug-in seat (742), and the bottom of the plug-in seat (742) is welded and fixed to the wheel frame (72), and a plug-in slot (741) is provided at the bottom of the mounting seat (71), and a mounting area (747) is provided inside the bottom end of the mounting seat (71), a button (748) is installed at the end of the mounting area (747), and a connecting rod (746) is fixedly arranged on the left side wall of the button (748), and the end of the connecting rod (746) away from the button (748) is fixed to the connecting piece (745), and the surface of the connecting piece (745) is screwed and fixed with a locking block (744), and a locking slot (743) is provided on the side wall of the plug-in seat (742).

2. A foldable baby stroller with a wide front and narrow rear as claimed in claim 1, characterized in that: The sizes of the plug-in slot (741) and the plug-in seat (742) are matched, and the length of the plug-in seat (742) is equal to the depth of the plug-in slot (741), and the plug-in seat (742) is plugged into the inside of the plug-in slot (741).

3. A foldable baby stroller with a wide front and narrow rear as claimed in claim 1, characterized in that: The mounting seat (71) and the wheel frame (72) are positioned and mounted via a plug-in slot (741) and a plug-in seat (742), and the cross-sections of the plug-in slot (741) and the plug-in seat (742) are both rectangular.

4. A foldable baby stroller with a wide front and narrow rear as claimed in claim 1, characterized in that: The first guide rod (749) and the second guide rod (7491) are fixedly installed inside the installation area (747), and two groups of first guide rods (749) are provided. At the same time, the two groups of first guide rods (749) are respectively inserted into the guide holes opened at both ends of the button (748) and the connecting piece (745).

5. A foldable baby stroller with a wide front and narrow rear as claimed in claim 4, characterized in that: The second guide rods (7491) are arranged in two groups, and springs (7492) are installed on both groups of the second guide rods (7491). Meanwhile, the two groups of the second guide rods (7491) are inserted into the guide holes opened on both sides of the middle part of the connecting piece (745).

6. A foldable baby stroller with a wide front and narrow rear as claimed in claim 1, characterized in that: The sizes of the locking groove (743) and the locking block (744) are matched, and the locking block (744) is inserted into the interior of the locking groove (743). Both the locking groove (743) and the locking block (744) are rectangular.

7. A foldable baby stroller with a wide front and narrow rear as claimed in claim 1, characterized in that: The plug socket (742) is plugged into the plug slot (741) to be locked and released through the lock slot (743) and the lock block (744), and by pressing the button (748), the lock slot (743) and the lock block (744) are disengaged to complete the disassembly of the wheel frame (72) and the running wheel (73) at the bottom of the baby carriage (1).

8. A foldable baby stroller with a wide front and narrow rear as claimed in claim 1, characterized in that: The button (748), the two groups of connecting rods (746) and the connecting sheet (745) are combined together to form a "mouth" shape, and the corners of the end of the button (748) are arranged in an arc shape.

9. A foldable baby stroller with a wide front and narrow rear as claimed in claim 4, characterized in that: The first guide rod (749) and the second guide rod (7491) are arranged in parallel, and the length of the second guide rod (7491) is smaller than the length of the first guide rod (749).

10. A foldable baby stroller with a wide front and narrow rear as claimed in claim 1, characterized in that: The button (748) is a "T"-shaped structure made of plastic material, and the button (748) drives the locking block (744) and the connecting piece (745) to move horizontally through two sets of connecting rods (746).

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