Baby carriage

Abstract

The utility model discloses a baby carriage which comprises two foot rod sets, a seat assembly, a U-shaped push rod and a sliding sleeve. Each foot rod group comprises a front foot rod and a rear foot rod of which the top ends are rotationally connected; the sliding sleeve slidably sleeves the rear leg rod; the end part of the U-shaped push rod is rotationally connected to one end of the sliding sleeve; the seat assembly comprises a seat plate and a backrest plate, the rear end of the seat plate is rotationally connected with the bottom end of the backrest plate, and the rear end of the seat plate is rotationally connected to the inner side of the sliding sleeve; the two sides of the U-shaped push rod are sleeved with first fixing sleeves, and the two sides of the backrest plate can be clamped with or separated from the first fixing sleeves; a pressing groove is formed in the outer side of the sliding sleeve, and a button is arranged in the pressing groove; a first lock pin is arranged in the rear foot rod, a pressing block is arranged in an installation groove of the first lock pin, the pressing block protrudes out of a hole in the rear foot rod, and the button abuts against the pressing block. The press block is driven to be matched with the first lock pin by pressing the button, the sliding sleeve can be quickly unlocked and linked with the U-shaped push rod, single-action folding or unfolding of the whole vehicle is achieved, and operation is easy, convenient and efficient.

Description

Technical Field

[0001] This utility model relates to the technical field of strollers, specifically to a children's stroller. Background Technology

[0002] Existing strollers generally suffer from the following structural design problems:

[0003] (1) Complex operation: The folding and unfolding of traditional handcarts usually require multiple steps, such as manually unlocking multiple parts or relying on tools, which makes them inconvenient to use.

[0004] (2) Large space occupation: Some trolleys still occupy a large space after being folded, making them inconvenient to store and carry.

[0005] (3) Inflexible seat adjustment: The adjustment of seat angle or height usually relies on fixed buckles or cumbersome mechanical structures, which cannot quickly adapt to different usage scenarios or children's needs.

[0006] (4) Single function: Most handcarts lack multi-functional design, such as tray or handle adjustment function, which affects practicality.

[0007] To address the aforementioned problems, this utility model proposes a children's stroller that is compact in structure, easy to operate, and has multiple functions. Utility Model Content

[0008] The technical problem to be solved by this utility model is to provide a children's stroller in view of the above-mentioned shortcomings of the prior art.

[0009] To achieve its purpose, this utility model adopts the following technical solution:

[0010] A children's stroller includes: two sets of footrests, a seat assembly, a U-shaped push rod, and a sliding sleeve;

[0011] Each set of leg rods includes a front leg rod and a rear leg rod that are rotatably connected at the top; the sliding sleeve is slidably sleeved on the rear leg rod, and the end of the U-shaped push rod is rotatably connected to one end of the sliding sleeve;

[0012] The seat assembly includes a seat plate and a backrest plate. The rear end of the seat plate is rotatably connected to the bottom end of the backrest plate, and the rear end of the seat plate is rotatably connected to the inner side of a sliding sleeve. The U-shaped push rod is fitted with first fixing sleeves on both sides, and the backrest plate can be engaged or disengaged from the first fixing sleeves.

[0013] The outer side of the sliding sleeve is provided with a pressing groove, and a button is provided in the pressing groove;

[0014] The rear leg has a first locking pin inside, and a pressure block is provided in the mounting groove of the first locking pin. The pressure block protrudes from the hole on the rear leg, and the button abuts against the pressure block.

[0015] Preferably, the first fixing sleeve has a slot on one side, and the backrest plate has fixing blocks on both sides. The mounting slot of the fixing block is provided with a spring and a second locking pin, and one end of the second locking pin can be engaged or disengaged from the slot.

[0016] Preferably, the outer side of the fixing block is provided with an elongated hole, and a handle is slidably disposed in the elongated hole, the handle being connected to the second locking pin.

[0017] Preferably, one end of the sliding sleeve is connected to a first mounting part, and the two rear ends of the seat plate are provided with second mounting parts. The first mounting part, the end of the U-shaped push rod, the second mounting part, and the two sides of the bottom end of the backrest plate are connected by a rotating shaft.

[0018] Preferably, a second fixing sleeve is provided below the first fixing sleeve, and handrails are rotatably connected to both sides of the second fixing sleeve, with a tray connected to the other end of the two handrails; the handrails are connected to the top of the front foot bar and the top of the rear foot bar via a pivot.

[0019] Preferably, the second fixing sleeve has a collar on its outer side, and the backrest plate has a sleeve hole, and an adjustment belt can be connected between the collar and the sleeve hole.

[0020] The beneficial effects of this utility model are:

[0021] (1) One-click folding and unfolding: By pressing the button, the sliding sleeve can be quickly unlocked and linked with the U-shaped push rod to realize the folding or unfolding of the whole vehicle in a single action, which is simple and efficient.

[0022] (2) Flexible seat adjustment: The snap-fit ​​design between the backrest and the first fixing sleeve, combined with the second locking pin and spring, supports quick adjustment of the backrest angle and further fixes it through the cooperation of the adjustment strap and the collar, improving the comfort of children.

[0023] (3) Stable and reliable structure: The sliding fit between the sliding sleeve and the rear foot rod, and the automatic reset mechanism of the locking pin (the first locking pin is reset by the spring, and the second locking pin is automatically engaged after the handle is operated) ensure that all parts are tightly locked after unfolding to avoid accidental loosening.

[0024] (4) Multifunctional integration: The rotating connection design of the armrest and tray expands the practicality of the trolley and makes it convenient to place children's products; the adjustable connection of the collar and the hole further enhances the adaptability of the back support. Attached Figure Description

[0025] For ease of explanation, this utility model is described in detail below with reference to the specific embodiments and accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0027] Figure 2 This is a schematic diagram of the backrest panel in the unlocked state in this embodiment;

[0028] Figure 3 This is a schematic diagram showing the disassembled components of the sliding sleeve, the first locking pin, and the pressure block in this embodiment;

[0029] Figure 4 This is a schematic diagram showing the disassembled backrest panel, second locking pin, and handle in this embodiment;

[0030] Figure 5 This is a cross-sectional view of the sliding sleeve and the first locking pin in this embodiment;

[0031] Figure 6 This is a schematic diagram of the folding process in this embodiment;

[0032] Figure 7 This is a schematic diagram of the folding completion state in this embodiment;

[0033] Figure 8 This is a schematic diagram showing the folded state of this embodiment from another perspective.

[0034] In the picture:

[0035] 1-Front foot bar; 2-Rear foot bar; 3-Seat plate; 301-Second mounting part; 4-Backrest plate; 401-Sleeve hole; 5-U-shaped push rod; 6-Sliding sleeve; 601-Pressing groove; 602-First mounting part; 7-First fixing sleeve; 701-Card groove; 8-Button; 9-First locking pin; 10-Pressure block; 11-Fixing block; 1101-Elongated hole; 12-Spring; 13-Second locking pin; 14-Handle; 15-Second fixing sleeve; 1501-Ring; 16-Armrest; 17-Tray; 18-Adjusting belt. Detailed Implementation

[0036] The following are specific embodiments of the present invention described in conjunction with the accompanying drawings, further illustrating the technical solution of the present invention. However, the present invention is not limited to these embodiments. Specific details such as particular configurations and components are provided in the following description merely to aid in a comprehensive understanding of the embodiments of the present invention. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0037] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0038] like Figure 1-8 As shown, this embodiment provides a children's stroller, which includes two sets of footrests, a seat assembly, a U-shaped push rod 5, and a sliding sleeve 6.

[0039] Each set of footrests consists of a front footrest 1 and a rear footrest 2 rotatably connected at the top, with a sliding sleeve 6 slidably fitted on the outer side of the rear footrest 2. The seat assembly includes a seat plate 3 and a backrest plate 4. The rear end of the seat plate 3 is rotatably connected to the bottom end of the backrest plate 4, and is coaxially hinged to the first mounting part 602 of the sliding sleeve 6 via a second mounting part 301. The end of the U-shaped push rod 5 is rotatably connected to the sliding sleeve 6, and first fixing sleeves 7 are fitted on both sides of the U-shaped push rod 5. The fixing blocks 11 on both sides of the backrest plate 4 can be engaged with the slots 701 of the first fixing sleeves 7 via second locking pins 13 to fix the seat angle.

[0040] A button 8 is provided in the pressing groove 601 on the outer side of the sliding sleeve 6, and a first locking pin 9 is provided inside the rear foot rod 2. A pressure block 10 is provided in the mounting groove of the first locking pin 9. The pressure block 10 protrudes from the hole on the rear foot rod 2, and the button 8 abuts against the pressure block 10. When the button 8 is pressed, the pressure block 10 inside the rear foot rod 2 retracts, thereby unlocking the sliding sleeve 6. After being released, the spring 12 pushes the first locking pin 9 to reset and lock.

[0041] Furthermore, a second fixed sleeve 15 is provided below the first fixed sleeve 7. Handrails 16 are rotatably connected to both sides of the second fixed sleeve 15, and trays 17 are connected to the other ends of the two handrails 16. The handrails 16 are connected to the top of the front foot bar 1 and the top of the rear foot bar 2 through a pivot. A collar 1501 is provided on the outer side of the second fixed sleeve 15, and a sleeve hole 401 is provided on the backrest plate 4. An adjusting belt 18 can be connected between the collar 1501 and the sleeve hole 401.

[0042] The principle of leg retraction:

[0043] (1) Unlocking the slide sleeve: Press the button 8 on the slide sleeve 6. The button 8 presses against the pressure block 10, causing it to retract into the rear foot rod 2, thus releasing the first locking pin 9 from locking the slide sleeve 6.

[0044] (2) Drive folding: Push the U-shaped push rod 5 downward, the sliding sleeve 6 slides down along the rear foot rod 2, causing the seat plate 3 to rotate around the hinge point. At the same time, the front foot rod 1 and the rear foot rod 2 fold at the top hinge point, and finally the whole vehicle is folded into a compact form.

[0045] The principle of pole deployment:

[0046] (1) Drive deployment: Pull the U-shaped push rod 5 upward, the sliding sleeve 6 moves up along the rear foot rod 2, driving the seat plate 3 to reset, and at the same time the front foot rod 1 and the rear foot rod 2 unfold into a stable triangular structure.

[0047] (2) Automatic locking: After the slide sleeve 6 is reset, the spring 12 pushes the pressure block 10 out, and the first locking pin 9 is re-engaged into the locking hole of the slide sleeve 6 to securely fix the position of the slide sleeve.

[0048] Seat folding and angle adjustment principle:

[0049] (1) Unlock the backrest: Pull the handle 14 on the outside of the fixing block 11 upwards. The handle 14 drives the second locking pin 13 to disengage from the slot 701 of the first fixing sleeve 7. The backrest 4 can rotate freely, so that the backrest can be folded up when the trolley is pushed.

[0050] (2) Adjusting and locking the angle: After pulling the backrest 4 upward to the desired angle, release the handle 14. The second locking pin 13 will automatically engage with the corresponding slot 701 under the action of the spring 12 to complete the locking. Use the adjusting belt 18 to fix one end between the collar 151 and the sleeve hole 401 to further adjust the support force of the backrest 4 and enhance stability.

[0051] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0052] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

Claims

1. A children's stroller, characterized in that, Includes: two sets of footrests, seat assembly, U-shaped push rod (5), and sliding sleeve (6); Each set of foot rods includes a front foot rod (1) and a rear foot rod (2) rotatably connected at the top; the sliding sleeve (6) is slidably sleeved on the rear foot rod (2), and the end of the U-shaped push rod (5) is rotatably connected to one end of the sliding sleeve (6); The seat assembly includes a seat plate (3) and a backrest plate (4). The rear end of the seat plate (3) is rotatably connected to the bottom end of the backrest plate (4), and the rear end of the seat plate (3) is rotatably connected to the inner side of the sliding sleeve (6). The U-shaped push rod (5) is fitted with a first fixing sleeve (7) on both sides, and the backrest plate (4) can be engaged or disengaged from the first fixing sleeve (7). The outer side of the sliding sleeve (6) is provided with a pressing groove (601), and a button (8) is provided in the pressing groove (601); The rear leg (2) is provided with a first locking pin (9) inside, and a pressure block (10) is provided in the mounting groove of the first locking pin (9). The pressure block (10) protrudes from the hole on the rear leg (2), and the button (8) abuts against the pressure block.

2. A children's stroller according to claim 1, characterized in that, The first fixing sleeve (7) has a slot (701) on one side, and the backrest (4) has fixing blocks (11) on both sides. The mounting groove of the fixing block (11) is provided with a spring (12) and a second locking pin (13). One end of the second locking pin (13) can be inserted into or removed from the slot.

3. A children's stroller according to claim 2, characterized in that, The fixing block (11) has an elongated hole (1101) on its outer side, and a handle (14) is slidably disposed in the elongated hole (1101). The handle (14) is connected to the second locking pin (13).

4. A children's stroller according to claim 1, characterized in that, The sliding sleeve (6) is connected to a first mounting part (602) at one end, and the seat plate (3) is provided with a second mounting part (301) on both sides of the rear end. The first mounting part (602), the end of the U-shaped push rod (5), the second mounting part (301), and the bottom sides of the backrest plate (4) are connected by a rotating shaft.

5. A children's stroller according to claim 1, characterized in that, A second fixed sleeve (15) is provided below the first fixed sleeve (7). Handrails (16) are rotatably connected to both sides of the second fixed sleeve (15). The other end of the two handrails (16) is connected to a tray (17). The handrails (16) are connected to the top of the front leg (1) and the top of the rear leg (2) through a pivot.

6. A children's stroller according to claim 5, characterized in that, The second fixing sleeve (15) has a collar (1501) on its outer side, and the backrest plate (4) has a sleeve hole (401). An adjusting belt (18) is connected between the collar (1501) and the sleeve hole (401).

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