Baby stroller folding and unlocking mechanism

Abstract

A baby stroller folding and unlocking mechanism comprises a first hinge seat arranged at the end of a push rod, a second hinge seat arranged at the end of a front rod and a traction mechanism, the first hinge seat is rotationally connected with the second hinge seat, a first containing groove is formed in one side of the first hinge seat, a second containing groove is formed in one side of the second hinge seat, and the traction mechanism is arranged in the first containing groove. The first accommodating groove and the second accommodating groove form an accommodating cavity; according to the baby stroller folding and unlocking mechanism, the transmission disc is additionally arranged, after the traction rope pulls the transmission disc, the transmission disc only rotates in the circumferential direction and does not slide in the axial direction, the transmission disc can rotate in the circumferential direction, the transmission disc can rotate in the circumferential direction, and therefore the transmission disc can not slide in the axial direction. The transmission disc is pushed to axially slide through cooperation of the transmission inclined face and the driving inclined face, and the transmission disc pushes the limiting gear to axially slide towards the interior of the second containing groove to be separated from the locking position. Compared with the prior art, the traction rope pulling device has the advantages that the traction rope is pulled more smoothly, and the service life of the traction rope is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to baby stroller technical field especially relates to baby stroller folding unlocking mechanism. BACKGROUND

[0002] Baby carriage is the important tool when baby travels, has the characteristic of folding portable. The existing baby stroller's folding unlocking mechanism such as the baby stroller rotary folding mechanism disclosed in Chinese utility model patent CN202243597U: when pressing the pinch, the traction cable drives the rotating piece to rotate, and the rotating piece pushes the folding tooth out of the second cavity through the sliding cooperation of the first inclined plane and the second inclined plane, to realize unlocking. It is found in practice that the traction cable extends from the rope hole of the push rod connecting piece to the second cavity and is connected with the rotating piece, and when the rotating piece axially slides, the traction cable will move horizontally, at this time, the traction cable will be abraded and bent at the outlet of the rope hole, since the traction cable is mostly steel wire rope, the abrasion and bending will affect the traction effect of the traction cable, and the bent traction cable is not easy to restore, causing the short service life of the traction cable. Therefore, the unlocking mechanism needs to be improved to solve the problem of poor traction effect of the traction cable. SUMMARY

[0003] The utility model provides a baby stroller folding unlocking mechanism with more reasonable structure in view of the above problems.

[0004] The utility model provides a baby stroller folding unlocking mechanism with more reasonable structure in view of the above problems.The technical scheme that the utility model solves above problem is as follows: a baby stroller folding unlocking mechanism, including the first hinged seat of being located in the end of push rod, the second hinged seat of being located in the end of front rod and traction mechanism, the first hinged seat is connected with the second hinged seat rotationally, one side of the first hinged seat is equipped with the first accommodating groove, one side of the second hinged seat is equipped with the second accommodating groove, the first accommodating groove and the second accommodating groove form accommodating cavity;

[0005] Rotary disc, transmission disc and limit gear are sequentially arranged in the accommodating cavity from the first accommodating groove to the second accommodating groove direction, when the unlocking mechanism locking state, the limit gear at least partial in the first accommodating groove and at least partial in the second accommodating groove, when the unlocking mechanism unlocking state, the limit gear is located in the second accommodating groove;

[0006] The traction mechanism includes the button of being located in the push rod and the traction rope of being located in the push rod, one end of the traction rope is connected with the button, the other end is connected with the rotary disc;

[0007] The rotary disc near transmission disc one side end surface is equipped with the first lug, the first lug is equipped with the drive inclined plane, the transmission disc near rotary disc one side end surface is equipped with the second lug, the second lug is equipped with the transmission inclined plane with the drive inclined plane cooperation, the rotary disc pushes the transmission disc axial sliding through the sliding cooperation of transmission inclined plane and drive inclined plane, and the sliding of transmission disc pushes the limit gear axial sliding in the second accommodating groove.

[0008] The utility model discloses baby stroller is parked and unlocks the mechanism and additionally added transmission disc, and the traction rope pulls the rotary disc, and the rotary disc only does the circumferential rotation, does not have the axial sliding, and is pushed the transmission disc axial sliding through the transmission slope and the cooperation of drive slope, and the transmission disc pushes the axial sliding of the limit gear into the second accommodating groove and separates the locking position. After adopting above-mentioned structure, the rotary disc of connecting traction rope does not axial sliding, can avoid the wear and tear and the bending of traction rope, and the advantage compared with prior art is: pull traction rope is more smooth, and effectively prolongs the service life of traction rope.

[0009] As preferred, the rotary disc near the transmission disc one side end face is equipped with the first slot, the first slot is located in the extension direction of drive slope, the transmission disc near the rotary disc one side end face is equipped with the second slot, the second slot is located in the extension direction of transmission slope, the rotary disc is close to the transmission disc, and the first lug is inserted in the second slot, and the second lug is inserted in the first slot. After setting like this, can effectively reduce the axial distance of accommodating cavity, reduce the volume of first hinged seat and second hinged seat.

[0010] As preferred, the other side end face of transmission disc is equipped with the convex top block, and the top block is abutted with one side end face of limit gear. The setting of top block is the force point of transmission disc and limit gear.

[0011] As preferred, the axial length of limit gear is less than or equal to the axial length of second accommodating groove, and the sum of the convex height of top block and the axial length of limit gear is greater than the axial length of second accommodating groove.

[0012] As preferred, the first accommodating groove wall is uniformly equipped with a plurality of first grooves, the first grooves extend along the axial direction of first accommodating groove, the second accommodating groove wall is uniformly equipped with a plurality of second grooves, the second grooves extend along the axial direction of second accommodating groove, the second grooves and the first grooves correspond in number and are connected to form a sliding groove, and the first protruding teeth on the outer periphery of the limit gear are slidably connected in the sliding groove formed by the second grooves and the first grooves; the limit gear and the bottom of the second accommodating groove are provided with a return spring.

[0013] As preferred, the transmission disc is provided with second protruding teeth on the outer periphery, and the second protruding teeth are slidably connected in the sliding groove formed by the second grooves and the first grooves. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structural schematic diagram of the utility model baby stroller is parked and unlocks the mechanism.

[0015] Figure 2 It is the utility model baby stroller is parked and unlocks the mechanism's explosion map.

[0016] Figure 3The utility model discloses a baby stroller folding unlocking mechanism's unlocking state schematic drawing.

[0017] Figure 4 The utility model discloses a baby stroller folding unlocking mechanism's locking state schematic drawing.

[0018] Figure 5 The utility model discloses a baby stroller folding unlocking mechanism's rotating disc's structure schematic drawing.

[0019] Figure 6 The utility model discloses a baby stroller folding unlocking mechanism's transmission disc's structure schematic drawing.

[0020] As shown in the drawing: 1, first hinged seat, 10, first accommodating groove, 101, first recess, 2, second hinged seat, 20, second accommodating groove, 201, second recess, 3, rotating disc, 30, first insertion slot, 31, first protruding block, 310, driving inclined surface, 4, transmission disc, 40, second insertion slot, 41, second protruding block, 410, transmission inclined surface, 42, top block, 43, second protruding tooth, 5, limit gear, 51, first protruding tooth, 52, return spring, 6, push rod, 7, front rod, 8, button, 9, traction rope. DETAILED DESCRIPTION

[0021] The utility model will be further described below in connection with the drawings and specific embodiment.

[0022] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, a baby stroller folding unlocking mechanism, including being located in the first hinged seat 1 of push rod 6 end, being located in the second hinged seat 2 of front rod 7 end and traction mechanism. The first hinged seat 1 is rotatably connected with the second hinged seat 2, and the first hinged seat 1 is provided with a first accommodating groove 10 on one side, and the second hinged seat 2 is provided with a second accommodating groove 20 on one side, and the first accommodating groove 10 and the second accommodating groove 20 form an accommodating cavity.

[0023] The accommodating cavity is sequentially provided with a rotating disc 3, a transmission disc 4 and a limit gear 5 from the first accommodating groove 10 to the second accommodating groove 20, and a pin shaft is protruded at the center of the bottom of the second accommodating groove 20, and the rotating disc 3, the transmission disc 4 and the limit gear 5 are sleeved on the pin shaft.

[0024] The first accommodating groove 10 is uniformly provided with a plurality of first grooves 101 extending along the axial direction of the first accommodating groove 10, and the second accommodating groove 20 is uniformly provided with a plurality of second grooves 201 extending along the axial direction of the second accommodating groove 20, the number of the second grooves 201 corresponds to the number of the first grooves 101 and communicates to form a sliding groove. The first protruding teeth 51 on the outer periphery of the limiting gear 5 are slidingly connected in the sliding groove formed by the second grooves 201 and the first grooves 101. The limiting gear 5 and the bottom of the second accommodating groove 20 are provided with a return spring 52.

[0025] When the unlocking mechanism is in the locked state, the limiting gear 5 is at least partially located in the first accommodating groove 10 and at least partially located in the second accommodating groove 20, and the first protruding teeth 51 are at least partially located in the first grooves 101 and at least partially located in the second grooves 201. When the unlocking mechanism is in the unlocked state, the limiting gear 5 is located in the second accommodating groove 20, and the first protruding teeth 51 are located in the second grooves 201.

[0026] The push rod 6 is provided with a channel, one end of the channel communicates with the first accommodating groove 10, and the traction mechanism includes a button 8 provided on the push rod 6 and a traction rope 9 penetrating in the push rod 6, one end of the traction rope 9 located in the channel is connected with the button 8, and the other end is connected with the rotating disc 3.

[0027] The rotating disc 3 is provided with a first protruding block 31 on the side end face close to the driving disc 4, the first protruding block 31 is provided with a driving slope 310, the driving disc 4 is provided with a second protruding block 41 on the side end face close to the rotating disc 3, the second protruding block 41 is provided with a transmission slope 410 matched with the driving slope 310, the rotating disc 3 pushes the driving disc 4 to slide axially through the sliding matching of the transmission slope 310 and the driving slope 410, and the sliding of the driving disc 4 pushes the limiting gear 5 to slide axially into the second accommodating groove 20.

[0028] The rotating disc 3 is provided with a first insertion slot 30 on the side end face close to the driving disc 4, the first insertion slot 30 is located in the extension direction of the driving slope 310, the driving disc 4 is provided with a second insertion slot 40 on the side end face close to the rotating disc 3, the second insertion slot 40 is located in the extension direction of the transmission slope 410, after the rotating disc 3 is close to the driving disc 4, the first protruding block 31 is inserted in the second insertion slot 40, and the second protruding block 41 is inserted in the first insertion slot 30.

[0029] The driving disc 4 is provided with a protruding top block 42 on the other side end face, and the top block 42 abuts against one side end face of the limiting gear 5. The top block 42 is arranged as a force point of the driving disc and the limiting gear 5.

[0030] The axial length of the limiting gear 5 is less than or equal to the axial length of the second accommodating groove 20, and the sum of the protruding height of the top block 42 and the axial length of the limiting gear 5 is greater than the axial length of the second accommodating groove 20.

[0031] The transmission disc 4 is provided with a second convex tooth 43 which is slidingly connected in a sliding groove formed by the second groove 201 and the first groove 101.

[0032] The utility model discloses a baby carriage storage unlocking mechanism adds transmission disc 4, and after traction rope 9 pulls rotary disc 3, rotary disc 3 only makes circumferential rotation, does not happen axial sliding, but through the cooperation of transmission inclined plane 410 and drive inclined plane 310, promotes transmission disc 4 axial sliding, and the limit gear 5 is pushed by transmission disc 4 and axially slides into the second accommodating groove 20 and separates the locking position. Can avoid the wear and break of traction rope 9, and the traction 9 is more smooth, and effectively prolongs the service life of traction rope 9.

Claims

1. A stroller folding unlocking mechanism, comprising a first hinged seat (1) arranged at the end of a push rod (6), a second hinged seat (2) arranged at the end of a front rod (7), and a traction mechanism, the first hinged seat (1) and the second hinged seat (2) being rotationally connected, the first hinged seat (1) being provided with a first accommodating groove (10) on one side, the second hinged seat (2) being provided with a second accommodating groove (20) on one side, and the first accommodating groove (10) and the second accommodating groove (20) forming an accommodating cavity; characterized in that: a rotating disc (3), a transmission disc (4) and a limiting gear (5) are sequentially arranged in the accommodating cavity from the first accommodating groove (10) to the second accommodating groove (20), the limiting gear (5) being at least partially located in the first accommodating groove (10) and at least partially located in the second accommodating groove (20) in the locked state of the unlocking mechanism, and the limiting gear (5) being located in the second accommodating groove (20) in the unlocked state of the unlocking mechanism; the traction mechanism comprises a button (8) arranged on the push rod (6) and a traction rope (9) arranged in the push rod (6), one end of the traction rope (9) being connected to the button (8) and the other end being connected to the rotating disc (3); the rotating disc (3) is provided with a first protrusion (31) on the side end face close to the transmission disc (4), the first protrusion (31) being provided with a driving slope (310), the transmission disc (4) is provided with a second protrusion (41) on the side end face close to the rotating disc (3), the second protrusion (41) being provided with a transmission slope (410) matched with the driving slope (310), the rotating disc (3) pushes the transmission disc (4) to axially slide through the sliding cooperation of the transmission slope (410) and the driving slope (310), and the sliding of the transmission disc (4) pushes the limiting gear (5) to axially slide into the second accommodating groove (20). The rotating disc (3) is provided with a first insertion groove (30) on the side end face close to the transmission disc (4), the first insertion groove (30) being located in the extension direction of the driving slope (310), the transmission disc (4) is provided with a second insertion groove (40) on the side end face close to the rotating disc (3), the second insertion groove (40) being located in the extension direction of the transmission slope (410), and after the rotating disc (3) is close to the transmission disc (4), the first protrusion (31) is inserted into the second insertion groove (40) and the second protrusion (41) is inserted into the first insertion groove (30). The transmission disc (4) is provided with a protruding top block (42) on the other side end face, the top block (42) abutting against the side end face of the limiting gear (5). The axial length of the limiting gear (5) is less than or equal to the axial length of the second accommodating groove (20), and the sum of the protruding height of the top block (42) and the axial length of the limiting gear (5) is greater than the axial length of the second accommodating groove (20).

2. The stroller fold unlock mechanism of claim 1, wherein: ​ 3. The stroller fold unlock mechanism of claim 1, wherein: ​ 4. The stroller fold unlock mechanism of claim 3, wherein: ​ 5. The stroller fold unlock mechanism of claim 3, wherein: The first accommodating groove (10) is uniformly provided with a plurality of first grooves (101) extending along the axial direction of the first accommodating groove (10), and the second accommodating groove (20) is uniformly provided with a plurality of second grooves (201) extending along the axial direction of the second accommodating groove (20), the number of the second grooves (201) corresponds to that of the first grooves (101) and the second grooves (201) and the first grooves (101) are communicated to form a sliding groove, and the first protruding teeth (51) on the outer periphery of the limiting gear (5) are slidingly connected in the sliding groove formed by the second grooves (201) and the first grooves (101); the limiting gear (5) and the bottom of the second accommodating groove (20) are provided with a return spring (52).

6. The stroller fold unlock mechanism of claim 5, wherein: The outer periphery of the transmission disc (4) is provided with second protruding teeth (43) which are slidingly connected in the sliding groove formed by the second grooves (201) and the first grooves (101).

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