CN106004969A - Baby carriage frame - Google Patents

Abstract

The invention discloses an infant carriage, wherein the front end of a chassis frame is rotatably connected with a loop bar, a sleeve pipe is inclined towards the back side of the chassis frame to form an angle structure, a push rod is connected with the upper part of the loop bar in a sliding way, a push handle is arranged between two push rods, when folding is carried out, an unlocking mechanism on the push handle is firstly acted to release the locking state of the push rod, then the push rod can slide downwards along the loop bar, and when the lower end of the push rod touches a frame locking mechanism and releases the locking state of the loop bar, the loop bar can be backwards folded relative to the chassis frame, so that folding is further realized.

Description

infant car frame

【Technical field】

The invention relates to a stroller, in particular to a frame for infants and young children.

【Background technique】

In the prior art, there are many types of baby carriages, mainly including foldable baby carriages. Among the existing foldable baby carriages, due to their complex design and structure, they are inconvenient to fold, especially because of the high manufacturing cost, which is not conducive to improving the competitiveness of products in the market.

The present invention studies and proposes aiming at the deficiencies in the prior art.

【Content of invention】

The technical problem to be solved by the present invention is to provide a vehicle frame for infants and young children. The front end of the chassis frame is rotatably connected to the bushing rod, and the bushing is inclined to the rear side of the chassis frame to form a ∠-shaped structure. There is a push handle between the push rods. When folding, the unlocking mechanism on the push handle is used first to release the locking state of the push rod, and then the push rod can slide down along the sleeve rod. When the lower end of the push rod touches the frame, it is locked. After the mechanism unlocks the locking state of the sleeve rod, the sleeve rod can be folded backwards relative to the chassis frame, and then folded. It has the characteristics of simple structure, convenient folding, and low manufacturing cost, which effectively improves the product market. Competitiveness.

In order to solve the above technical problems, the present invention includes an infant vehicle frame, including a chassis frame, a wheel assembly is arranged at the bottom of the chassis frame, and a sleeve rod is rotatably connected to the front end of the chassis frame, and each sleeve rod can be A push rod is telescopically connected, and a push handle is connected between the upper ends of the two push rods.

A vehicle frame locking mechanism is provided between the front end of the chassis frame and the lower end of the sleeve rod for locking the sleeve rod so that the sleeve rod keeps tilting toward the rear side of the chassis frame.

A push rod locking mechanism for locking the push rod to prevent the push rod from sliding relative to the sleeve rod is provided between the sleeve rod and the push rod.

The push handle is provided with an unlocking mechanism for releasing the locking state of the push rod by the push rod locking mechanism, and when the unlocking mechanism releases the locking state of the push rod, the push rod slides relative to the sleeve rod, and the lower end of the push rod triggers the frame lock The mechanism is unlocked so that the sleeve rod is turned over to the rear side of the chassis frame.

A seat frame is arranged between the two sleeve rods.

The frame locking mechanism includes a frame locking notch, a frame locking member, and a frame locking elastic member. The frame locking notch is arranged on the front end of the chassis frame, and the frame locking member includes a The hinged end hinged with the sleeve rod is used to snap into the hook in the frame locking notch and the trigger end is used to face the end of the push rod, and the frame lock elastic part is abutted between the lower part of the trigger end and the sleeve rod Press elastically so that the hook stays locked in the locking notch of the frame.

The push rod locking mechanism includes a push rod locking bayonet, a push rod block and a push rod locking elastic member. The middle part is hinged with the push rod, and the push rod block includes a locking end that can move out of the push rod to snap into the locking bayonet of the push rod and is used to drive the locking end to disengage from the locking bayonet of the push rod to retract into the push rod The unlocking drive end of the push rod, and the two ends of the push rod locking elastic member are respectively abutted against the push rod block and the push rod so that the locking end remains locked into the push rod lock bayonet.

The unlocking mechanism includes an unlocking button and a linkage, the unlocking button is movably arranged on the push handle, two ends of the unlocking button are respectively connected to two linkages, and the other end of the linkage is connected to the unlocking drive end.

The push handle is also slidably connected with a safety lock block, and the inner side of the safety lock block and the unlock button are respectively provided with a movable protrusion and a fixed protrusion opposite to each other, and the push handle is also provided with a pressing safety lock block to make the dynamic The protrusion keeps pressing against the fixed protrusion and restricts the safety lock block elastic member that the unlocking key is retracted into the push handle.

The seat frame includes an upper half pipe section and a lower half pipe section in a U-shaped structure, and a straight middle pipe section, the middle pipe section is placed between the upper half pipe section and the lower half pipe section, and the upper half pipe section and the lower half pipe section are placed between the upper half pipe section and the lower half pipe section. A joint A is connected between the middle pipe sections so that the upper half pipe section can be adjusted and positioned relative to the middle pipe section, and a joint B is provided between the lower half pipe section and the middle pipe section so that the lower half pipe section can be adjusted relative to the middle pipe section. Handrails are movably clamped between the joints A, and ceiling struts are provided between the two ends of the opening of the upper half pipe section, and the ceiling struts and the upper half pipe section are movably connected through joint C.

The chassis frame has a U-shaped structure and a reinforcing rod is arranged between the open ends, and the open end of the chassis frame is rotatably connected to the lower end of the sleeve rod.

Compared with the prior art, the infant vehicle frame of the present invention adopts a brand-new folding method, which combines the telescopic structure with the joint folding structure, that is, the push rod is slidingly connected with the sleeve rod, and the sleeve rod rotates with the chassis frame Connection, when retracting, first retract the push rod into the sleeve, and then use the lower end of the push rod to trigger the frame locking mechanism to unlock, so that the sleeve rod is folded relative to the chassis frame to achieve folding, which has the advantages of simple structure, convenient retraction and low production cost Low characteristics, effectively improve the competitiveness of products.

【Description of drawings】

The specific embodiment of the present invention is described in further detail below in conjunction with accompanying drawing, wherein:

Fig. 1 is one of structural representations of a kind of infant vehicle frame of the present invention;

Fig. 2 is the second structure schematic diagram of a kind of infant vehicle frame of the present invention;

Fig. 3 is the side view of a kind of infant vehicle frame of the present invention;

Fig. 4 is a reference diagram of a folded state of an infant vehicle frame of the present invention;

Fig. 5 is a schematic structural view of the connection of the chassis frame, the sleeve rod, the push rod and the push handle in a vehicle frame for infants and young children according to the present invention;

Fig. 6 is a structural schematic diagram of the connection between the push rod and the push handle in an infant vehicle frame of the present invention;

Fig. 7 is a cross-sectional view of the connection between the chassis frame and the sleeve rod in the infant vehicle frame of the present invention;

Fig. 8 is a structural schematic diagram of a push handle in an infant vehicle frame of the present invention;

Fig. 9 is a cross-sectional view of a push handle in an infant vehicle frame of the present invention;

Fig. 10 is a schematic structural view of a seat frame in an infant carriage frame according to the present invention.

Fig. 11 is a structural schematic diagram of a joint B in a frame for infants and young children according to the present invention;

Fig. 12 is an exploded view of a joint B in an infant carriage frame according to the present invention.

【detailed description】

Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

The present invention includes an infant vehicle frame, which includes a chassis frame 1, a wheel assembly 2, a sleeve rod 3, a push rod 4 and a push handle 5. The wheel assembly 2 is arranged at the bottom of the chassis frame 1, the front end of the chassis frame 1 is rotatably connected to the sleeve rod 3, and the sleeve pipe 3 is inclined to the rear side of the chassis frame 1 to form an ∠-shaped structure, each of the sleeve rods 3 It is telescopically connected with a push rod 4, and the push handle 5 is connected between the upper ends of the two push rods 4.

The chassis frame 1 has a U-shaped structure and a reinforcing rod 11 is arranged between the opening ends. There is a frame locking mechanism 6 for locking the sleeve rod 3 so that the sleeve rod 3 keeps tilting to the rear side of the chassis frame 1; between the sleeve rod 3 and the push rod 4 is provided for locking the push rod 4 to prevent the push rod 4 The push rod locking mechanism 7 that slides relative to the sleeve rod 3; the push handle 5 is provided with an unlocking mechanism 8 for releasing the locking state of the push rod locking mechanism 7 to the push rod 4, and when the unlocking mechanism 8 releases the locking of the push rod 4 state, the push rod 4 slides relative to the sleeve rod 3, and the lower end of the push rod 4 triggers the unlocking of the vehicle frame locking mechanism 6 so that the sleeve rod 3 is turned over to the rear side of the chassis frame 1. When folding, first act on the unlocking mechanism 8 to link the push rod locking mechanism 7 to unlock the push rod 4, so that the push rod 4 is retracted into the casing, and when the lower end of the push rod 4 slides to the frame locking mechanism 6, then use the push rod 4 The lower end triggers the frame locking mechanism 6 to release the locking state of the sleeve rod 3, so that the sleeve rod 3 can be folded backward relative to the chassis frame 1, and then the folding action is realized. Using the above structure, the sliding telescopic structure and the joint are folded The combination of structures forms a brand-new folding method, which has the characteristics of simple structure, convenient folding and unfolding, and low production cost, which effectively improves the competitiveness of products.

A seat frame 9 is arranged between the two sleeve bars 3, and the awning and the seat cloth are connected through the seat frame 9.

The frame locking mechanism 6 includes a frame locking notch 61, a frame locking member 62, and a frame locking elastic member 63. The frame locking notch 61 is arranged on the front end of the chassis frame 1, and the frame The locking member 62 includes a hinged end 621 for being hinged with the sleeve rod 3, a hook 622 for snapping into the locking notch 61 of the vehicle frame and a triggering end 623 for facing the end of the push rod 4, the vehicle frame The locking elastic member 63 abuts between the lower part of the trigger end 623 and the sleeve rod 3 to press elastically so that the hook 622 remains locked into the locking notch 61 of the vehicle frame. When the trigger end 623 is pressed by the lower end of the push rod 4, the hinged end 621 of the vehicle frame locking member 62 rotates around its hinge axis, and correspondingly one end of the hook 622 is separated from the vehicle frame locking notch 61, so that the sleeve rod 3 and the chassis can be locked together. Rack 1 is unlocked.

The push rod locking mechanism 7 includes a push rod lock bayonet 71, a push rod block 72 and a push rod lock elastic member 73. The push rod lock bayonet 71 is arranged on the upper side of the sleeve rod 3, and the push rod block 72 is placed in the push rod 4 and the middle part is hinged with the push rod 4. The push rod block 72 includes a locking end 721 that can move out of the push rod 4 to snap into the push rod locking bayonet 72 and is used to drive the card. The lock end 721 breaks away from the push rod locking bayonet 72 to retract the unlocking drive end 722 in the push rod 4, and the two ends of the push rod locking elastic member 73 abut against the push rod block 72 and the push rod 4 respectively so that the locking end 721 remains locked into the push rod locking bayonet 72 .

The unlocking mechanism 8 includes an unlocking button 81 and a linkage 82, the unlocking button 81 is movable on the push handle 5, the two ends of the unlocking button 81 are respectively connected with two linkages 82, and the other end of the linkage 82 is Connected with the unlocking driving end 722, the linkage 82 is a flexible rope or a steel rope.

In order to further improve the safety performance and avoid folding due to misoperation, a safety lock block 83 is slidably connected to the push handle 5, and a movable protrusion 84 and a fixed protrusion are respectively provided on the inside of the safety lock block 83 and the unlock button 81. 85, and the push handle 5 is also provided with a safety lock block elastic member 86 for pressing the safety lock block 83 so that the movable protrusion 84 keeps pressing against the fixed protrusion 85 and restricts the release button 81 from retracting into the push handle 5. With the above structure, when folding, the safety lock block 83 needs to be acted first, so that the movable protrusion 84 and the fixed protrusion 85 are staggered from each other, and then the unlocking button 81 is pressed to pull the linkage 82 .

The seat frame 9 includes an upper half pipe section 91 and a lower half pipe section 92 in a U-shaped structure, and a straight middle pipe section 93, the middle pipe section 93 is placed between the upper half pipe section 91 and the lower half pipe section 92, And the joint A94 that enables the upper half pipe section 91 to be adjusted and positioned relative to the middle pipe section 93 is connected between the upper half pipe section 91 and the middle pipe section 93, and a joint A94 is arranged between the lower half pipe section 92 and the middle pipe section 93 so that the lower half pipe section 92 adjusts the fixed joint B95 relative to the middle pipe section 93, and a handrail 96 is movably clamped between the two joints A94. It is movably connected with the upper half pipe section 91 through a joint C98.

The joint B95 includes two first joint blocks 951 and second joint blocks 952 that are pivotally connected to each other. The first joint block 951 and the second joint block 952 are provided with tooth grooves 953 along the circumferential direction on the inner side, and the second joint block 951 A tooth block 954 is provided between the first joint block 951 and the second joint block 952, and a tooth block 954 is provided between the second joint block 952 and the tooth block 954 so that the tooth block 954 snaps into the first joint block 951 and the second joint block at the same time. 952 on the tooth groove 953 elastic member 955, the side of the first joint block 951 is provided with a joint control member 956 for pressing the tooth block 954 so that the tooth block 954 is separated from the tooth groove 953 on the first joint block 951 . Both the joint A94 and the joint C98 mentioned above adopt a structure similar to that of the joint B95.

The above-mentioned middle frame locking elastic member 63, push rod locking elastic member 73, safety lock block elastic member 86 and gear block elastic member 955 are all springs.

When the present invention is folded, the safety lock block 83 is first moved, and when the movable protrusion 84 and the fixed protrusion 85 are staggered, the unlocking button 81 is pressed, and the unlocking button 81 retracts into the push handle 5, and then simultaneously pulls the linkage 82, The lower ends of the two linkages 82 pull the push rod block 72 correspondingly, and the locking end 721 of the push rod block 72 is retracted into the push rod 4 to break away from the push rod locking bayonet 72. The push rod 4 slides downward along the sleeve rod 3. When the lower end of the push rod 4 is pressed against the trigger end 623, the hook 622 is disengaged from the locking notch 61 of the frame, and then the push handle 5 is pushed downward, and the sleeve rod 3 Then the rear side of the chassis frame 1 is folded relative to the rear side, and then the folding action is completed.

When the present invention is deployed, the push handle 5 is pulled backward so that the push rod 4 protrudes from the sleeve rod 3. When the locking end 721 of the push rod block 72 slides to the push rod locking bayonet 72, the push rod locks elastically. Under the action of the elastic force of piece 73, it is automatically snapped in, and then locks the push rod 4 and the sleeve rod 3; at the same time, the lower end of the sleeve rod 3 rotates forward around the front end of the chassis frame 1, and when the hook 622 slides to the frame locking recess When opening 61, the trigger end 623 is automatically snapped into it under the elastic force of the frame locking elastic member 63, thereby locking the state of the sleeve rod 3 and the chassis frame 1, and in the above-mentioned unfolding process, the push rod locks the elastic member 73. When the elastic force acts on the push rod block 72, the driving end 722 pulls the unlock button 81 through the linkage 82 to reset it, and the safety lock block 83 is also reset accordingly by the elastic force of the safety lock block elastic member 86, so that the movable protrusion 84 is against the fixed button. raised 85.

Claims (8)

1. A vehicle frame for infants, characterized in that it comprises a chassis frame (1), the bottom of the chassis frame (1) is provided with a wheel assembly (2), and the front end of the chassis frame (1) is rotatably connected with a sleeve rod (3), each of the sleeve rods (3) is telescopically connected with a push rod (4), and a push handle (5) is connected between the upper ends of the two push rods (4); Between the front end of the chassis frame (1) and the lower end of the sleeve rod (3), a frame locking mechanism ( 6); A push rod locking mechanism (7) for locking the push rod (4) to prevent the push rod (4) from sliding relative to the sleeve rod (3) is provided between the sleeve rod (3) and the push rod (4); The push handle (5) is provided with an unlocking mechanism (8) for releasing the locking state of the push rod (4) by the push rod locking mechanism (7), and when the unlocking mechanism (8) releases the locking of the push rod (4) state, the push rod (4) slides relative to the sleeve rod (3), and the lower end of the push rod (4) triggers the unlocking of the vehicle frame locking mechanism (6) so that the sleeve rod (3) is turned over to the rear side of the chassis frame (1). 2. An infant vehicle frame according to claim 1, characterized in that a seat frame (9) is provided between the two sleeve rods (3). 3. An infant frame according to claim 1 or 2, characterized in that the frame locking mechanism (6) includes a frame locking notch (61), a frame locking member (62), and a frame locking mechanism (6). The locking elastic part (63), the frame locking notch (61) is arranged on the front end of the chassis frame (1), and the frame locking part (62) includes a hinge for hinged connection with the sleeve rod (3). end (621), the hook (622) used to snap into the frame lock notch (61) and the trigger end (623) used to face the end of the push rod (4), the frame lock elastic member ( 63) Abut against the lower part of the trigger end (623) and the sleeve rod (3) to press elastically so that the hook (622) remains stuck in the locking notch (61) of the vehicle frame. 4. An infant vehicle frame according to claim 1 or 2, characterized in that the push rod locking mechanism (7) includes a push rod lock bayonet (71), a push rod block (72) and a push rod lock The elastic piece (73), the push rod locking bayonet (71) is arranged on the upper side of the sleeve rod (3), the push rod block (72) is placed in the push rod (4) and the middle part is connected with the push rod (4) ) is hinged, and the push rod block (72) includes a locking end (721) that can be extended out of the pushing rod (4) to snap into the locking bayonet (72) of the push rod and is used to drive the locking end (721 ) disengages from the push rod locking bayonet (72) to retract the unlocking drive end (722) inside the push rod (4), and the two ends of the push rod locking elastic member (73) respectively abut against the push rod block (72) and the push rod (4) so that the locking end (721) remains locked in the locking bayonet (72) of the push rod. 5. An infant carriage frame according to claim 4, characterized in that the unlocking mechanism (8) includes an unlocking button (81) and a linkage (82), and the unlocking button (81) is movably arranged on a push button. On the handle (5), the two ends of the unlock button (81) are respectively connected to two linkages (82), and the other end of the linkage (82) is connected to the unlocking drive end (722). 6. An infant carriage frame according to claim 5, characterized in that a safety lock block (83) is slidably connected to the push handle (5), and the safety lock block (83) and the unlock button (81 ) are respectively provided with movable protrusions (84) and fixed protrusions (85) opposite to each other, and the push handle (5) is also provided with a safety lock block (83) for pressing against so that the movable protrusions (84) keep pressing Fixed projection (85) and limit release button (81) to the safety lock block elastic piece (86) that retracts in the push handle (5). 7. A kind of infant vehicle frame according to claim 2, characterized in that the seat frame (9) includes an upper half pipe section (91) and a lower half pipe section (92) in a U-shaped structure, and a straight line The middle pipe section (93), the middle pipe section (93) is placed between the upper half pipe section (91) and the lower half pipe section (92), and the connection between the upper half pipe section (91) and the middle pipe section (93) There is a joint A (94) that enables the upper half pipe section (91) to be adjusted and positioned relative to the middle pipe section (93), and the lower half pipe section (92) and the middle pipe section (93) are provided with a Adjust the fixed joint B (95) relative to the middle pipe section (93), and a handrail (96) is movably clamped between the two joints A (94). A ceiling pole (97), the ceiling pole (97) is flexibly connected to the upper half pipe section (91) through a joint C (98). 8. An infant vehicle frame according to claim 1, characterized in that the chassis frame (1) has a U-shaped structure and a reinforcing bar (11) is arranged between the opening ends, and the chassis frame (1) has an opening The end is rotationally connected with the lower end of the cover rod (3).