Baby stroller frame

Abstract

The present invention relates to a baby stroller frame, comprising a support frame assembly, a folding assembly and a locking assembly; the support frame assembly comprises a handle and a seat frame; the handle has a stroller locking position and a trailer locking position; the folding assembly comprises a connecting block slidably arranged on the handle, a front leg tube connected to the connecting block, a rear leg tube hinged to the connecting block, a linkage bar hinged between the handle and the front leg tube, and a folding slide hinged between the linkage bar and the rear leg tube; a stroller fixing seat is arranged on the front leg tube; the locking assembly is used to control the clamping state of the stroller fixing seat and the stroller locking position of the handle, and to control the clamping state of the connecting block and the trailer locking position of the handle. The above-mentioned stroller frame realizes the switching between the stroller state and the trailer state through the locking assembly, thereby ensuring that when the baby grows up, the stroller can be transformed into a trailer for carrying goods, thereby improving the utilization rate of the stroller.

Description

Technical Field

[0001] The present invention relates to the technical field of baby carriages, and in particular to a baby carriage frame. Background Art

[0002] A baby stroller is a tool vehicle designed to facilitate outdoor activities for babies. There are various models. Baby strollers are the baby's favorite means of transportation for walking, and are also a must-have for mothers when taking their babies shopping. Baby strollers are divided into assembled and foldable types. The assembled type is usually an integrated structure after assembly, while the foldable type is usually unfolded into a baby stroller and folded for easy transportation and storage. Because the foldable type is more convenient to use, it is more popular in the market.

[0003] Existing baby strollers are generally used until children are three years old due to growth restrictions of infants. Children over three years old have the ability to walk and play by themselves, so baby strollers lose their function. Many families with children have a useless baby stroller when their children grow up, resulting in poor utilization of baby strollers. Summary of the invention

[0004] Based on this, it is necessary to provide a baby stroller frame to address the problem of poor utilization of baby strollers.

[0005] A baby carriage frame, comprising:

[0006] A support frame assembly, the support frame assembly comprising a handle and a seat frame connected to the handle; the handle has a cart locking position and a trailer locking position;

[0007] A folding assembly connected to the support frame assembly; the folding assembly includes a connecting block slidably mounted on the handle, a front leg tube connected to the connecting block, a rear leg tube hinged to the connecting block, a linkage bar hingedly connecting the handle and the front leg tube, and a folding slide tube hingedly connecting the linkage bar and the rear leg tube; a cart fixing seat is provided on the front leg tube; and

[0008] A locking assembly is installed on the handle, and is used to control the clamping state of the cart fixing seat and the cart locking position of the handle, and to control the clamping state of the connecting block and the trailer locking position of the handle.

[0009] The above-mentioned baby stroller frame is provided with a stroller locking position and a trailer locking position on the handle, the stroller fixing seat is engaged with the stroller locking position to be in the stroller state, the connecting block is engaged with the trailer locking position to be in the trailer state, and the switching between the stroller state and the trailer state is realized by the locking component. The stroller state is used for infants to ride, and the trailer state can be used for infants to ride or to tow goods, thereby ensuring that when the baby grows up, the stroller can be transformed into a trailer for carrying goods, thereby improving the utilization rate of the stroller.

[0010] In one embodiment, one end of the linkage bar is hinged to the handle, the other end of the linkage bar is hinged to the folding slide tube, and the front leg tube is hinged between the two ends of the linkage bar.

[0011] In one of the embodiments, a folding slider is provided between the folding slide tube and the rear leg tube; the folding slider is hinged to the rear leg tube, and the folding slider is slidably disposed on the folding slide tube.

[0012] In one of the embodiments, a folding button is provided on the folding slider, and the folding button is used to control the clamping state of the folding slider and the folding sliding tube.

[0013] In one embodiment, the locking assembly includes a finger pressure block, a first pull wire connected to the finger pressure block, a top seat connected to the first pull wire, a trailer locking pin connected to the top seat, a second pull wire connected to the top seat, and a cart holder connected to the second pull wire; the trailer locking pin is installed at the trailer locking position of the handle, and the cart holder is installed at the cart locking position of the handle.

[0014] In one of the embodiments, a trailer slot is provided on the connection block, the trailer locking pin is correspondingly disposed in the trailer slot, and a reset member is provided at one end of the trailer locking pin away from the trailer slot.

[0015] In one of the embodiments, the cart seat is slidably mounted on the handle, and an elastic member is disposed between the cart seat and the handle.

[0016] In one embodiment, the connecting block includes a sliding portion, a mounting portion connected to the sliding portion, and a hinged portion connected to the mounting portion; the sliding portion is slidably disposed on the handle, the front leg tube is connected to the mounting portion, and the rear leg tube is hinged to the hinged portion.

[0017] In one embodiment, the baby stroller frame further includes a towing rod, one end of which is clamped on the front leg tube.

[0018] In one embodiment, the handle is provided in a U-shaped hollow tubular structure, the seat frame is provided in a rectangular ring structure, and the handle is connected and fixed to two sides of the seat frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a baby stroller frame in a pushing state according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the baby carriage frame in a trailer state;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure of the baby carriage frame during the folding process;

[0022] Figure 4 for Figure 1 A schematic diagram of the structure of the baby carriage frame in a folded state;

[0023] Figure 5 for Figure 1 A schematic cross-sectional view of the baby carriage frame.

[0024] The meanings of the numbers in the accompanying drawings are:

[0025] 100. stroller frame; 10. support frame assembly; 11. handle; 15. seat frame;

[0026] 20, folding assembly; 21, connecting block; 211, trailer slot; 215, sliding part; 216, mounting part; 217, hinged part; 22, front leg tube; 225, cart fixing seat; 23, rear leg tube; 24, linkage bar; 25, folding slide tube; 255, folding slider; 256, folding button;

[0027] 30. Locking assembly; 31. Finger-pressing block; 32. First pull wire; 33. Top seat; 34. Trailer lock pin; 35. Second pull wire; 36. Cart holder; 37. Reset member; 38. Elastic member;

[0028] 50. Drag rod. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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.

[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0035] See also Figures 1 to 5 , is a baby stroller frame 100 according to an embodiment of the present invention, comprising a support frame assembly 10, a folding assembly 20 connected to the support frame assembly 10, and a locking assembly 30 installed on a handle 11; the baby stroller frame 100 is provided with a pushcart state and a trailer state, the pushcart state is used for a baby to sit and push, and the trailer state is used for hauling items to improve utilization. It can be understood that in the trailer state, the body of the baby stroller is in a horizontal state to facilitate hauling items, and can also be used for a baby to sit or lie flat.

[0036] The support frame assembly 10 includes a handle 11 and a seat frame 15 connected to the handle 11. The handle 11 is a U-shaped hollow tubular structure. The handle 11 is used for a person to grasp and apply thrust in a cart-pushing state. The handle 11 has a cart-pushing locking position and a trailer-pushing locking position. The seat frame 15 is a rectangular ring structure. The seat frame 15 and the handle 11 are arranged in the same plane. The handle 11 is arranged around the outside of the seat frame 15. The handle 11 is connected and fixed to both sides of the seat frame 15. In this embodiment, a plurality of fixed positions are arranged between the handle 11 and the seat frame 15 to improve the connection reliability between the handle 11 and the seat frame 15 and ensure the load-bearing capacity in the trailer state.

[0037] The folding assembly 20 is connected to the support frame assembly 10, and the folding assembly 20 realizes the conversion between the cart state and the trailer state through folding and deformation; the folding assembly 20 includes a connecting block 21 slidably arranged on the handle 11, a front leg tube 22 connected to the connecting block 21, a rear leg tube 23 hinged to the connecting block 21, a connecting bar 24 hingedly connecting the handle 11 and the front leg tube 22, and a folding slide tube 25 hingedly connecting the connecting bar 24 and the rear leg tube 23. The connecting block 21 is slidably mounted on the handle 11, and the connecting block 21 can move along the setting direction of the handle 11; in the present embodiment, the connecting block 21 comprises a sliding portion 215, a mounting portion 216 connected to the sliding portion 215, and a hinged portion 217 connected to the mounting portion 216; the sliding portion 215 is arranged in an annular structure, the sliding portion 215 is sleeved on the outside of the handle 11, and the sliding portion 215 is slidably mounted on the handle 11; the mounting portion 216 is hinged to the sliding portion 215, the mounting portion 216 is connected to the front leg tube 22, and the mounting portion 216 is relatively fixed to the front leg tube 22, thereby ensuring that the front leg tube 22 can rotate relative to the sliding portion 215; the hinged portion 217 is arranged on a side of the mounting portion 216 away from the sliding portion 215, the hinged portion 217 is connected and fixed to the mounting portion 216, and the rear leg tube 23 is hinged to the hinged portion 217 to ensure that the rear leg tube 23 can rotate relative to the connecting block 21. Furthermore, a trailer slot 211 is provided on the connection block 21 . The trailer slot 211 is provided in a rectangular groove-shaped structure. The trailer slot 211 is used to fix the connection block 21 in the trailer locking position of the handle 11 .

[0038] The front leg tube 22 is connected to the connecting block 21, and the front leg tube 22 is arranged on the side of the connecting block 21 away from the handle 11, and the front leg tube 22 is extended in a long strip; the rear leg tube 23 is hinged to the connecting block 21, and the rear leg tube 23 is arranged on the side of the connecting block 21 close to the handle 11, and the rear leg tube 23 is extended in a long strip; it can be understood that the connecting block 21 is relatively slidably arranged on both sides of the handle 11, and the two ends of the front leg tube 22 are connected to the connecting blocks 21 on both sides, and the two ends of the rear leg tube 23 are hinged to the connecting blocks 21 on both sides. The front leg tube 22 and the rear leg tube 23 are provided with rollers at one end away from the support frame assembly 10 to facilitate overall movement. Further, a cart fixing seat 225 is provided on the front leg tube 22, and the cart fixing seat 225 is connected and fixed to the front leg tube 22, and the cart fixing seat 225 is arranged corresponding to the cart locking position. In this embodiment, the baby stroller frame 100 also includes a towing rod 50, which is in the form of a long strip. One end of the towing rod 50 is clamped on the front leg tube 22. The towing rod 50 is detachably connected to the front leg tube 22 to facilitate towing in the trailer state.

[0039] The linkage bar 24 is arranged in a long strip structure, and the linkage bar 24 is arranged on a side of the front leg tube 22 close to the seat frame 15. One end of the linkage bar 24 is hinged to the handle 11, and the other end of the linkage bar 24 is hinged to the folding slide tube 25. The front leg tube 22 is hinged between the two ends of the linkage bar 24; the folding slide tube 25 is arranged in a long strip structure, and the folding slide tube 25 is arranged on a side of the linkage bar 24 away from the front leg tube 22. One end of the folding slide tube 25 is hinged to the linkage bar 24, and the other end of the folding slide tube 25 is hinged to the rear leg tube 23. In this embodiment, a folding slider 255 is provided between the folding slide tube 25 and the rear leg tube 23. The folding slider 255 is hinged to the rear leg tube 23, and the folding slider 255 is slidably arranged on the folding slide tube 25; a folding button 256 is provided on the folding slider 255, and the folding button 256 is used to control the clamping state of the folding slider 255 and the folding slide tube 25. Pressing the folding button 256 can release the clamping state of the folding slider 255 and the folding slide tube 25, thereby allowing the folding slider 255 to slide on the folding slide tube 25, and at the same time ensuring that the rear leg tube 23 and the folding slide tube 25 can rotate relative to each other.

[0040] The locking assembly 30 is installed on the handle 11, and is used to control the engagement state of the cart fixing seat 225 and the cart locking position of the handle 11, and control the engagement state of the connecting block 21 and the trailer locking position of the handle 11, thereby realizing the control of the cart state and the trailer state. In this embodiment, the locking assembly 30 includes a finger pressing block 31, a first pull line 32 connected to the finger pressing block 31, a top seat 33 connected to the first pull line 32, a trailer lock pin 34 connected to the top seat 33, a second pull line 35 connected to the top seat 33, and a cart clamping seat 36 connected to the second pull line 35. The finger pressure block 31 is installed on the handle 11, and the finger pressure block 31 is set at the end of the handle 11 away from the front leg tube 22. The finger pressure block 31 is used for being pressed by a person to switch the vehicle body state; the first pull wire 32 is extended in a long strip shape, and the first pull wire 32 is passed through the handle 11. Pressing the finger pressure block 31 corresponds to applying tension to the first pull wire 32; the top seat 33 is slidably set in the handle 11, and an inclined surface is set on the top seat 33, and the inclined surface abuts against the trailer lock pin 34 to ensure that pulling the top seat 33 corresponds to lifting the trailer lock pin 34; the trailer lock pin 34 is set in a long strip structure, and the trailer lock pin 34 is installed in the trailer locking position of the handle 11. The trailer lock pin 34 is passed through the handle 11, the trailer locking pin 34 is correspondingly arranged in the trailer slot 211, thereby fixing the connecting block 21 in the trailer locking position; the second pull wire 35 is arranged at an end of the top seat 33 away from the first pull wire 32 to ensure that the first pull wire 32 and the second pull wire 35 move synchronously; the cart holder 36 is installed in the cart locking position of the handle 11, and the cart holder 36 is slidably arranged on the handle 11. The cart holder 36 corresponds to the setting position of the cart fixing seat 225, and the cart holder 36 is connected with the cart fixing seat 225 to be fixed in the cart state. The second pull wire 35 correspondingly pulls the cart holder 36 to move relative to the handle 11 to separate the cart holder 36 in the connected state from the cart fixing seat 225. In the present embodiment, a reset member 37 is provided at one end of the trailer lock pin 34 away from the trailer slot 211. The reset member 37 is provided in a spiral structure. The reset member 37 and the trailer slot 211 are provided in the same direction. The reset member 37 is used to elastically press the trailer lock pin 34 into the trailer slot 211; an elastic member 38 is provided between the cart seat 36 and the handle 11. The elastic member 38 is provided in a spiral structure. The elastic member 38 is arranged around the outside of the second pull wire 35. The elastic member 38 and the second pull wire 35 are provided in the same direction. The elastic member 38 is used to elastically lift the cart seat 36 away from the second pull wire 35 to ensure the reliability of the connection between the cart seat 36 and the trailer fixing seat.

[0041] The working principle of the stroller frame 100 of the present embodiment is as follows: in the stroller state, the stroller fixing seat 225 is connected with the stroller clamping seat 36. When it is necessary to switch to the trailer state, the finger pressure block 31 is pressed, and the stroller clamping seat 36 is pulled by the second pull line 35, so that the stroller clamping seat 36 is separated from the stroller fixing seat 225, and the connecting block 21 slides along the handle 11 away from the stroller clamping seat 36 until it moves to the trailer locking position, and the trailer locking pin 34 is clamped in the trailer clamping slot 211, thereby fixing the connecting block 21 on the handle 11; when it is necessary When switching to the folding state, the finger pressure block 31 is pressed, and under the action of the first pull wire 32 pulling the top seat 33, the trailer lock pin 34 is separated from the trailer slot 211, and the connecting block 21 continues to slide along the handle 11 away from the cart seat 36, driving the support frame assembly 10 to move toward the front leg tube 22, and then pressing the folding button 256 to release the connection between the folding slider 255 and the folding slide tube 25, and the folding slider 255 moves on the folding slide tube 25 accordingly, thereby driving the rear leg tube 23 to rotate toward the front leg tube 22 to achieve the folding operation.

[0042] The above-mentioned baby stroller frame 100, by setting a stroller locking position and a trailer locking position on the handle 11, the stroller fixing seat 225 is engaged with the stroller locking position to be in a stroller state, the connecting block 21 is engaged with the trailer locking position to be in a trailer state, and the switching between the stroller state and the trailer state is achieved through the locking assembly 30. The stroller state is used for babies to ride, and the trailer state can be used for babies to ride or to tow goods, thereby ensuring that when the baby grows up, the stroller can be transformed into a trailer for carrying goods, thereby improving the utilization rate of the stroller.

[0043] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A baby stroller frame, characterized in that: include: A support frame assembly, the support frame assembly comprising a handle and a seat frame connected to the handle; The handle has a cart locking position and a trailer locking position; A folding assembly connected to the support frame assembly; the folding assembly includes a connecting block slidably mounted on the handle, a front leg tube connected to the connecting block, a rear leg tube hinged to the connecting block, a linkage bar hingedly connecting the handle and the front leg tube, and a folding slide tube hingedly connecting the linkage bar and the rear leg tube; a cart fixing seat is provided on the front leg tube; and A locking assembly installed on the handle, the locking assembly is used to control the clamping state of the cart fixing seat and the cart locking position of the handle, and control the clamping state of the connecting block and the trailer locking position of the handle; One end of the linkage bar is hinged with the handle, and the other end of the linkage bar is hinged with the folding slide tube, and the front leg tube is hinged between the two end portions of the linkage bar; a folding slider is arranged between the folding slide tube and the rear leg tube; the folding slider is hinged with the rear leg tube, and the folding slider is slidably arranged on the folding slide tube; the locking assembly comprises a finger pressure block, a first pull wire connected to the finger pressure block, a top seat connected to the first pull wire, a trailer lock pin connected to the top seat, a second pull wire connected to the top seat, and a cart holder connected to the second pull wire; the trailer lock pin is installed in the trailer locking position of the handle, and the cart holder is installed in the cart locking position of the handle; the connecting block comprises a sliding portion, a mounting portion connected to the sliding portion, and a hinged portion connected to the mounting portion; the sliding portion is slidably arranged on the handle, the front leg tube is connected to the mounting portion, and the rear leg tube is hinged to the hinged portion.

2. The baby carriage frame according to claim 1, characterized in that: The folding slider is provided with a folding button, and the folding button is used to control the clamping state of the folding slider and the folding sliding tube.

3. The baby carriage frame according to claim 1, characterized in that: The connecting block is provided with a trailer slot, the trailer locking pin is correspondingly locked in the trailer slot, and a reset piece is provided at one end of the trailer locking pin away from the trailer slot.

4. The baby stroller frame according to claim 1, characterized in that: The cart seat is slidably arranged on the handle, and an elastic member is arranged between the cart seat and the handle.

5. The baby carriage frame according to claim 1, characterized in that: The baby carriage frame also includes a towing rod, one end of which is clamped on the front leg tube.

6. The baby stroller frame according to claim 1, characterized in that: The handle is arranged in a U-shaped hollow tubular structure, the seat frame is arranged in a rectangular ring structure, and the handle is connected and fixed to two sides of the seat frame.

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