CN212500620U

CN212500620U - Locking mechanism on baby carriage

Info

Publication number: CN212500620U
Application number: CN202020946288.2U
Authority: CN
Inventors: 罗革
Original assignee: CIXI FUBEIBEI CHILDREN ARTICLES CO LTD
Current assignee: CIXI FUBEIBEI CHILDREN ARTICLES CO LTD
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-02-09
Anticipated expiration: 2030-05-29

Abstract

The utility model discloses a locking mechanism on buggy, including push rod unblock subassembly and receive and draw joint spare, push rod unblock subassembly includes an upper push rod, connects at the fixed unit of push rod bottom down, with fixed unit articulated unblock piece and wear to establish the limited axle at unblock piece front end, be equipped with movable chamber in the fixed unit, be connected with movable chamber through a round pin axle on the unblock piece, be used for unblock or fixed and lower push rod connection through a locking unit on the upper push rod, the upper push rod can be conflicted to in the fixed unit when pushing down the unblock, makes the unblock piece around the round pin axle back and forth action in the movable chamber; receive and draw joint subassembly including first limit frame and connect the second limit frame on the back foot unit, the utility model has the advantages of reasonable design, through push rod unblock subassembly cooperation is received and is drawn location and the unblock action of joint spare, makes things convenient for the swift unblock of perambulator, folds up laborsavingly moreover, has improved the practicality of perambulator.

Description

Locking mechanism on baby carriage

Technical Field

The utility model relates to a perambulator technical field especially relates to a locking mechanical system on perambulator.

Background

The locking mechanism of the child car is an important component of the child car, and the folding operation of the child car frame is realized by folding the locking mechanism of the child car.

Child's bike among the prior art generally can be by preceding foot unit, the back foot unit, the seat, the push rod is constituteed, wherein unlocking structure mostly can be set in on the push rod, the mode pulling unlocking piece unblock that adopts the haulage rope unblock simultaneously can be, but because wire rope is the flexible piece, can have certain elastic deformation when the unblock of pulling locking piece, it is great to lead to losing in the drive power (the pulling force among the prior art) transmission process that applys to locking piece, drive locking piece is comparatively hard, and unlocking structure is complicated, the performance of perambulator has been reduced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to prior art's current situation, provide one kind and use on the perambulator frame, simple structure, convenient and fast unblock, fold up laborsaving, the locking mechanical system that the practicality is strong.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a locking mechanism on a child vehicle comprises a push rod unlocking assembly and a retraction joint piece, wherein the push rod unlocking assembly comprises an upper push rod, a lower push rod, a fixing unit connected to the bottom end of the lower push rod, an unlocking block hinged to the fixing unit and a limiting shaft penetrating through the front end of the unlocking block, a movable cavity is arranged in the fixing unit, the unlocking block is connected with the movable cavity through a pin shaft, the upper push rod is used for unlocking or fixing and is connected with the lower push rod through a locking unit, and the upper push rod can be abutted into the fixing unit when being pressed downwards to unlock so that the unlocking block moves back and forth in the movable cavity around the pin shaft;

the folding joint component comprises a first limiting frame connected to the front foot unit and a second limiting frame connected to the rear foot unit, wherein a lapping pressing block in matched connection with the unlocking block is hinged to the first limiting frame, positioning clamping pieces are arranged on two sides of the first limiting frame respectively, positioning blocks in matched connection with the rear foot unit are connected to two sides of the second limiting frame, the front end of the second limiting frame penetrates through the positioning clamping pieces to be matched and connected with the first limiting frame through a connecting piece respectively, and the limiting shaft is clamped on the positioning clamping pieces.

As the improvement, still be connected with the fixed sleeving who cup joints with the cooperation of push rod down on the fixed unit, the fixed sleeving front end is formed with the arc fluting that can cooperate the conflict of location card to connect.

And the upper end of the lapping pressing block is matched and butted with the arc-shaped groove.

In another refinement, the shape of the unlocking block includes, but is not limited to, an inverted V-shape or an arc shape.

In another improvement, the bottom end of the first limiting frame extends to form an insertion tube which is matched and inserted with the front foot unit, and the upper end surface of the first limiting frame is also provided with a first outer arc groove which is matched with the front end surface of the unlocking block and is abutted against the front end surface of the unlocking block.

And the second limiting frame is provided with a first limiting frame and a second limiting frame, wherein the two sides of the second limiting frame are provided with hinge grooves which are convenient for connecting positioning blocks, the inner side of the second limiting frame is abutted against the rear end of the first limiting frame, and the abutting end of the second limiting frame and the first limiting frame is also provided with a second outer arc groove which is communicated with the first outer arc groove and is set.

In another improvement, the positioning card is provided with at least one groove, and the limiting shaft is clamped into the groove.

The improved structure of the lock comprises a locking unit, a locking unit and a pressing unit, wherein the locking unit comprises a locking pipe inserted into the inner wall of a lower push rod, an installation groove arranged on the outer side of the locking pipe, and a pressing block connected in the installation groove, the inner wall of the locking pipe is matched and spliced with an upper push rod, the pressing block is transversely hinged in the installation groove through a pin shaft, a clamping column is extended forwards from the front side of the pressing block and inserted into the upper push rod, a return spring is also arranged in the installation groove in an abutting mode, and the upper end of the return spring abuts against the bottom end of the.

Compared with the prior art, the utility model has the advantages of: the utility model has the advantages of reasonable design, through push rod unblock subassembly cooperation is received and is drawn the location and the unblock action of joint spare, makes things convenient for the swift unblock of perambulator, folds up laborsavingly moreover, has improved the practicality of perambulator.

Drawings

FIG. 1 is a schematic structural view of the present invention in use on a child's vehicle when deployed;

fig. 2 is an exploded schematic view of the push rod unlocking assembly of the present invention;

FIG. 3 is a schematic structural view of the retracting joint of the present invention;

fig. 4 is a schematic view of the disassembled structure of the retracting joint member of the present invention;

fig. 5 is a schematic structural view of the lock tube of the present invention;

fig. 6 is a schematic structural view of the utility model applied to the folded baby carriage.

Reference numerals: 1. a push rod unlocking assembly; 2. retracting and pulling the joint piece; 10. a push rod is arranged; 11. a lower push rod; 12. a fixing unit; 13. unlocking the block; 14. defining an axis; 15. a locking unit; 20. a first limiting frame; 21. a second limiting frame; 120. a movable cavity; 121. fixing the sleeve; 122. arc-shaped grooving; 130. a shaft hole; 131. an arc-shaped groove; 150. locking the tube; 151. installing a slot; 152. a pressing block; 153. a return spring; 154. a position clamping column; 200. lapping and pressing blocks; 201. inserting a tube; 202. a first outer arc groove; 203. positioning the card; 204. a groove; 210. positioning blocks; 211. a hinge slot; 212. a second outer arc groove.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 6, the present invention provides a locking mechanism on a child's bike, including a push rod unlocking assembly 1 and a retracting joint member 2, the push rod unlocking assembly 1 includes an upper push rod 10, a lower push rod 11, a fixing unit 12 connected to the bottom end of the lower push rod 11, an unlocking block 13 hinged to the fixing unit 12, and a limiting shaft 14 penetrating the front end of the unlocking block 13, a movable cavity 120 is disposed in the fixing unit 12, the unlocking block 13 is connected to the movable cavity 120 through a pin shaft, the upper push rod 10 is used for unlocking or fixing the connection with the lower push rod 11 through a locking unit 15, the upper push rod 10 can be abutted to the fixing unit 12 when being pressed down for unlocking, so that the unlocking block 13 moves back and forth around the pin shaft in the movable cavity 120;

the retraction joint component comprises a first limiting frame 20 connected to the front foot unit and a second limiting frame 21 connected to the rear foot unit, wherein a lapping press block 200 matched and connected with the unlocking block 13 is hinged to the first limiting frame 20, two sides of the first limiting frame 20 are respectively provided with a positioning card 203, two sides of the second limiting frame 21 are connected with positioning blocks 210 hinged to the rear foot unit, the front end of the second limiting frame 21 penetrates through the positioning cards 203 to be matched and connected with the first limiting frame 20 through a connecting piece, and the limiting shaft 14 is clamped on the positioning cards 203; the upper push rod 10 and the lower push rod 11 are unlocked through the locking unit 15, after unlocking, the upper push rod 10 can be pushed into the lower push rod 11 and meanwhile abutted against the fixing unit 12, so that the fixing unit 12 can rotate by taking the second limiting frame 21 as a reference, and meanwhile, the unlocking block 13 can act, so that the limiting shaft 14 is separated from the connection with the positioning clamping piece 203, and further folding action of the baby carriage is facilitated; the unlocking block 13 is transversely connected in the movable cavity 120 through a pin shaft, so that the rationality of the unlocking and clamping actions of the unlocking block 13 is ensured;

the two sides of the lapping press block 200 are hinged with the seat in a matching way, so that the stability of the seat mounting structure is enhanced; the positioning cards 203 respectively arranged at the two sides of the first limiting frame 20 facilitate clamping and positioning of the limiting shaft 14, and the positioning cards 203 are respectively positioned at the two sides of the first limiting frame 20, and meanwhile, when the child car is not unlocked, the limiting shaft 14 is clamped at the front ends of the positioning cards 203 for positioning, so that the unlocking block 13 is kept in constant connection; positioning blocks 210 are hinged to two sides of the second limiting frame 21, so that the rear foot unit is inserted into the positioning blocks 210 for positioning, and meanwhile, the movable position of the rear foot unit is limited along the connecting positions of the two sides of the second limiting frame 21 and the positioning blocks 210 by taking the positioning blocks 210 as a reference; this design passes through push rod unblock subassembly 1 cooperation is received and is drawn location and the unblock action of joint spare 2, makes things convenient for the swift unblock of perambulator, folds up laborsavingly moreover, has improved the practicality of perambulator.

In this embodiment, still be connected with the fixed sleeve 121 that cup joints with the cooperation of push down lever 11 on the fixed unit 12, fixed sleeve 121 front end is formed with the arc fluting 122 that can cooperate the conflict of location card 203 to be connected, the rear side of location card 203 is contradicted on the cell wall of arc fluting 122, and when the perambulator unblock, fixed unit 12 can use the junction with second limited frame 21 to rotate the perk as the benchmark for location card 203 breaks away from the conflict action of arc fluting 122, conveniently realizes the unblock action of perambulator.

In this embodiment, the axle hole 130 connected with the limiting shaft 14 is penetrated through at the front end of the unlocking block 13, an arc-shaped groove 131 is arranged at the upper end of the unlocking block 13, the upper end of the lapping press block 200 is in fit and abutting connection with the arc-shaped groove 131, the axle hole 130 penetrated through at the front end of the unlocking block 13 facilitates the limiting shaft 14 to penetrate through the two ends of the limiting shaft 14 at the same time and can be clamped into the positioning clamping piece 203, and further the installation position of the unlocking block 13 is limited.

In this embodiment, the shape of the unlocking block 13 includes, but is not limited to, an inverted V shape or an arc shape, and preferably, the unlocking block 13 is made into an inverted V shape, so that the operation of the unlocking block 13 in the movable cavity 120 in the fixed unit 12 can be rationalized, and the unlocking and limiting efficiency of the stroller can be improved.

In this embodiment, the bottom end of the first limiting frame 20 extends to form an insertion tube 201 which is inserted into the front foot unit in a matching manner, the upper end surface of the first limiting frame 20 is further provided with a first outer arc groove 202 which is arranged in an abutting manner with the front end surface of the unlocking block 13, and in the locking state of the stroller, the front end surface of the unlocking block 13 abuts against the first outer arc groove 202, so that the unlocking block 13 is kept in a stable state, and the structural stability of the unlocking block 13 is improved.

In this embodiment, the two sides of the second limiting frame 21 are provided with hinge slots 211 for facilitating connection of the positioning block 210, the inner side of the second limiting frame 21 abuts against the rear end of the first limiting frame 20, the abutting end of the second limiting frame 21 and the first limiting frame 20 is further provided with a second outer arc slot 212 communicated with the first outer arc slot 202, the two sides of the second limiting frame 21 are provided with the hinge slots 211 for facilitating hinging of the positioning block 210 in the hinge slots 211 through a connecting shaft, so that the rear foot unit can be folded by taking the connecting shaft as a reference, and the inner side of the second limiting frame 21 abuts against the first limiting frame 20, so that the front foot unit and the rear foot unit are kept in a relatively unfolded state.

In this embodiment, the positioning card 203 is provided with at least one groove 204, the limiting shaft 14 is clamped into the groove 204, preferably, the groove 204 on the positioning card 203 is provided with one and is arc-shaped, and matches with the shaft shape of the limiting shaft 14, so that the limiting shaft 14 is conveniently clamped into the groove 204, and the fixing unit 12 and the first limiting frame 20 are kept in a relative connection state.

In this embodiment, the locking unit 15 includes a locking tube 150 inserted into the inner wall of the lower push rod 11, an installation slot 151 formed outside the locking tube 150, and a pressing block 152 connected in the installation slot 151, the inner wall of the locking tube 150 is inserted into the upper push rod 10 in a matching manner, the pressing block 152 is transversely hinged in the installation slot 151 by a pin shaft, a retaining column 154 is extended forward from the front side of the pressing block 152 and inserted into the upper push rod 10, a return spring 153 is also inserted into the installation slot 151, the upper end of the return spring 153 abuts against the bottom end of the pressing block 152, when it is necessary to unlock the space between the upper push rod 10 and the lower push rod 11, the return spring 153 is compressed by pressing the pressing block 152 downward, the retaining column 154 at the front end of the pressing block 152 is disengaged from the insertion of the upper push rod 10, at this time, the upper push rod 10 is not stressed, and the upper push rod 10 is pressed downward in the upper push rod 10, until it collides into the fixing unit 12.

When the utility model is unlocked before folding, the locking unit 15 is firstly used to unlock the control state between the upper push rod 10 and the lower push rod 11, the pressing block 152 is pressed downwards to compress the return spring 153, the clamping column 154 at the front end of the pressing block 152 can be separated from the insertion connection with the upper push rod 10, at the moment, the upper push rod 10 is not stressed, the upper push rod 10 is pressed downwards in the upper push rod 10 until the upper push rod is abutted into the fixing unit 12 to form a first unlocking state, so that the unlocking action of the upper push rod 10 and the lower push rod 11 is convenient, then when the upper push rod 10 is pushed into the fixing unit 12, the front end of the fixing unit 12 can rotate and tilt by taking the connection part with the second limiting frame 21 as the reference, the unlocking block 13 can cooperate with the tilting of the front end of the fixing unit 12 to separate the limiting shaft 14 from the connection with the positioning card 203, so as to form a second unlocking state, so that the lower push rod 11, the front foot unit and the rear foot unit can be unlocked from the control state, the front foot unit is convenient to be matched with the rear foot unit in linkage folding and unfolding action, so that the child bicycle is convenient to unlock quickly, the folding and unfolding are labor-saving, and the practicability of the child bicycle is improved.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a locking mechanical system on child's bike, includes push rod unblock subassembly and receive and draw the joint spare, its characterized in that: the push rod unlocking assembly comprises an upper push rod, a lower push rod, a fixing unit connected to the bottom end of the lower push rod, an unlocking block hinged to the fixing unit and a limiting shaft penetrating through the front end of the unlocking block, a movable cavity is arranged in the fixing unit, the unlocking block is connected with the movable cavity through a pin shaft, the upper push rod is used for unlocking or fixing through a locking unit and is connected with the lower push rod, and the upper push rod can be abutted into the fixing unit during downward pressing and unlocking to enable the unlocking block to move back and forth in the movable cavity around the pin shaft;

the folding joint piece comprises a first limiting frame connected to the front foot unit and a second limiting frame connected to the rear foot unit, a lapping pressing block in matched connection with the unlocking block is hinged to the first limiting frame, positioning clamping pieces are arranged on two sides of the first limiting frame respectively, positioning blocks in matched connection with the rear foot unit are connected to two sides of the second limiting frame, the front end of the second limiting frame penetrates through the positioning clamping pieces to be matched and connected with the first limiting frame through a connecting piece respectively, and the limiting shaft is clamped on the positioning clamping pieces.

2. A locking mechanism on a child's vehicle as claimed in claim 1, wherein: still be connected with the fixed sleeving that cup joints with the cooperation of push down lever on the fixed unit, the fixed sleeving front end is formed with the arc fluting that can cooperate the conflict of location card to connect.

3. A locking mechanism on a child's vehicle as claimed in claim 1, wherein: the front end of the unlocking block penetrates through a shaft hole connected with the limiting shaft, an arc-shaped groove is formed in the upper end of the unlocking block, and the upper end of the lapping pressing block is matched and abutted with the arc-shaped groove.

4. A locking mechanism on a child's vehicle as claimed in claim 1 or 3, wherein: the shape of the unlocking block includes, but is not limited to, an inverted V-shape or an arc shape.

5. A locking mechanism on a child's vehicle as claimed in claim 1, wherein: the bottom end of the first limiting frame extends to form an insertion pipe which is matched and inserted with the front foot unit, and the upper end face of the first limiting frame is further provided with a first outer arc groove which is matched with the front end face of the unlocking block and is abutted against the front end face of the unlocking block.

6. A locking mechanism on a child's vehicle as claimed in claim 5, wherein: the two sides of the second limiting frame are provided with hinge grooves which are convenient for connecting the positioning blocks, the inner side of the second limiting frame is abutted against the rear end of the first limiting frame, and the abutting end of the second limiting frame and the first limiting frame is also provided with a second outer arc groove which is communicated with the first outer arc groove and is set.

7. A locking mechanism on a child's vehicle as claimed in claim 1, wherein: at least one groove is formed in the positioning clamping sheet, and the limiting shaft is clamped into the groove.

8. A locking mechanism on a child's vehicle as claimed in claim 1, wherein: the locking unit comprises a locking pipe inserted into the inner wall of the lower push rod, an installation groove formed in the outer side of the locking pipe, and a pressing block connected in the installation groove, the inner wall of the locking pipe is matched and spliced with the upper push rod, the pressing block is transversely hinged in the installation groove through a pin shaft, a clamping column is extended forwards to insert the upper push rod into the front side of the pressing block, a return spring is further arranged in the installation groove in an abutting mode, and the upper end of the return spring abuts against the bottom end of the pressing block.