CN217730533U - Reversible baby carriage frame - Google Patents
Reversible baby carriage frame Download PDFInfo
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- CN217730533U CN217730533U CN202221326082.5U CN202221326082U CN217730533U CN 217730533 U CN217730533 U CN 217730533U CN 202221326082 U CN202221326082 U CN 202221326082U CN 217730533 U CN217730533 U CN 217730533U
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Abstract
The utility model discloses a but bassinet frame of switching-over, when rotating the switching-over, user's manual operation push rod unblock subassembly is in order to relieve the relative seat bracing piece lock-out state of push rod, the relative seat bracing piece of operation push rod overturns forward after that, above-mentioned push rod overturns the in-process forward herein, can make seat unblock subassembly carry out the unblock in order to relieve seat bracing piece relative connecting seat lock-out state to seat locking subassembly, the push rod is restricted by push rod stop gear and prevents its upset of foot bar direction forward this moment, then operation push rod rotates 180 commutations together with the relative connecting seat bracing piece of seat bracing piece, be about to the seat frame by the orientation conversion backward direction forward, this moment because push rod stop gear restricts the push rod upset of foot bar direction forward, for this reason the push rod can only backward foot bar orientation upset, make push rod around the switching-over be located back foot bar one side all the time, therefore the utility model has the characteristics of convenient operation and reasonable in design.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a bassinet frame that can commutate.
[ background of the invention ]
In the prior art, although some child carts with direction-changeable push rods can realize the direction change of the push rods, the direction change is carried out, the front wheels are required to be changed into the rear wheels, the rear wheels are required to be changed into the front wheels, and the front wheels and the rear wheels are required to be switched in a universal rotating mode and a directional rotating mode so as to be pushed to move forwards.
In addition, the push rod reversing mechanism, the front wheel directional locking mechanism and the rear wheel directional locking mechanism in the prior art are all in linkage control through push rod overturning, after the push rod is overturned, if a seat frame needs to be adjusted, the seat frame needs to be rotated independently, and the whole process is complex in steps, troublesome to operate and not simple and convenient.
Therefore, the present invention has been made in view of the above problems.
[ Utility model ] content
The utility model aims at overcoming prior art's is not enough, provide a bassinet frame that can commutate, can improve the problem that prior art exists, under the condition that does not change preceding wheelset and rear wheel group rotating state promptly, can make the fast turn-over of seat frame through the quick upset of push rod, and after seat frame rotation commutates, this push rod can only turn over the location and convenient to use person promotes the walking backward foot pole one side upset, has simple operation, safe and reliable's characteristics.
The utility model discloses a realize through following technical scheme:
the utility model relates to a bassinet frame that can commutate, include:
the connecting seat 1, connecting seat 1 front side is connected with preceding foot bar 11, preceding foot bar 11 lower extreme is connected with preceding wheelset 111, connecting seat 1 rear side is connected with back foot bar 12, back foot bar 12 lower extreme is connected with rear wheel set 121.
The seat support rod 2 is rotatably connected to the connecting seat 1, and a seat locking assembly 3 for locking the seat support rod 2 relative to the connecting seat 1 is arranged between the seat support rod 2 and the connecting seat 1.
The push rod 5 is rotatably connected with the seat supporting rod 2 through a joint 6, and a push rod unlocking assembly 7 used for unlocking the locking state of the push rod 5 relative to the seat supporting rod 2 is arranged on the push rod 5.
The joint 6 is provided with a seat unlocking component 4 which is used for unlocking the seat locking component 3 when the push rod 5 turns forwards relative to the seat supporting rod 2 so as to release the locking state of the seat supporting rod 2 relative to the connecting seat 1.
The joint 6 is also provided with a push rod limiting mechanism 9 which is used for limiting the push rod 5 to continuously turn towards the front foot rod 11 direction when the push rod 5 turns forwards relative to the seat supporting rod 2 and after the seat locking assembly 3 is unlocked, and the push rod limiting mechanism 9 enables the push rod 5 to only turn towards the back foot rod 12 direction when the seat supporting rod 2 rotates 180 degrees relative to the connecting seat 1.
In the reversible stroller frame, the joint 6 is provided with the seat unlocking assembly 4 for unlocking the seat locking assembly 3 to release the locking state of the seat support rod 2 relative to the connecting seat 1 when the push rod 5 is turned forwards relative to the seat support rod 2 to the vertical state.
The stroller frame capable of reversing as described above, the joint 6 includes a seat joint block 61 provided on the seat support rod 2 and a pusher joint block 62 provided on the lower end of the pusher 5 and rotatably connected to the seat joint block 61, an external gear 63 is slidably provided between the seat joint block 61 and the pusher joint block 62, and internal gears 64 capable of simultaneously engaging with the external gear 63 to lock the joint 6 are provided on both the seat joint block 61 and the pusher joint block 62. The push rod limiting mechanism 9 comprises a first limiting rod 91 and a second limiting rod 92 which are telescopically arranged on the seat joint block 61, and the push rod limiting mechanism 9 further comprises a limiting block 93 which is arranged on the push rod joint block 62 and is used for limiting and matching with the first limiting rod 91 or the second limiting rod 92. When the seat supporting rod 2 is at the initial position, the first limiting rod 91 is close to one side of the front leg rod 11 and the second limiting rod 92 is far away from one side of the front leg rod 11, and when the push rod 5 is turned forwards relative to the seat supporting rod 2 to unlock the seat locking assembly 3, the first limiting rod 91 extends out to block the limiting block 93 so as to limit the push rod 5 to continue to turn forwards in the direction of the front leg rod 11. When the seat support rod 2 rotates 180 degrees relative to the connecting seat 1, the first limiting rod 91 is far away from one side of the front foot rod 11, the second limiting rod 92 is close to one side of the front foot rod 11, and the second limiting rod 92 extends out to block the limiting block 93 so as to limit the push rod 5 to turn over towards the front foot rod 11 direction, so that the push rod 5 can only turn over towards the back foot rod 12 direction.
As described above, the linkage mechanism 8 for linking the first limiting rod 91 and the second limiting rod 92 to perform telescopic switching when the seat support rod 2 rotates relative to the connecting seat 1 is disposed between the seat support rod 2 and the connecting seat 1.
In the reversible stroller frame, the seat support rod 2 is provided with the seat rotating shaft 21 for rotatably connecting with the connecting seat 1. The linkage mechanism 8 comprises a linkage sliding block 81 which is slidably arranged on the seat joint block 61, and a first linkage inclined surface 811 and a second linkage inclined surface 812 which can link the first limiting rod 91 and the second limiting rod 92 to retract relative to the seat joint block 61 when the linkage sliding block 81 slides up and down relative to the seat joint block 61 are arranged on the linkage sliding block 81. The linkage mechanism 8 further includes a first limiting rod spring 82 disposed between the first limiting rod 91 and the seat joint block 61 for driving the first limiting rod 91 to extend out relative to the seat joint block 61, and a second limiting rod spring 83 disposed between the second limiting rod 92 and the seat joint block 61 for driving the second limiting rod 92 to extend out relative to the seat joint block 61. The linkage mechanism 8 further comprises a linkage cam 84 which is arranged on the seat rotating shaft 21 and is provided with a convex part 841, and a driving slide block 85 which is slidably arranged on the connecting seat 1, wherein a driving slide block hole 851 which is sleeved on the linkage cam 84 and is matched with the convex part 841 is arranged on the driving slide block 85, the driving slide block hole 851 is non-circular, and the driving slide block 85 is connected with the linkage slide block 81 through a linkage pull rope 86. When the seat support rod 2 drives the linkage cam 84 to rotate relative to the connecting seat 1, the convex portion 841 is in pushing fit with the side wall of the driving slider hole 851 so that the driving slider 85 slides relative to the connecting seat 1 and further drives the linkage slider 81 to slide downward relative to the seat joint block 61, and a linkage slider spring 813 for driving the linkage slider 81 to slide upward and reset relative to the seat joint block 61 when the driving slider 85 cancels the traction force on the linkage slider 81 is arranged between the linkage slider 81 and the seat joint block 61.
In the reversible stroller frame, the seat mounting seat 211 is provided on the seat rotating shaft 21. The seat locking assembly 3 comprises two seat notches 31 symmetrically arranged on the connecting seat 1 and a seat locking block 32 which is slidably arranged on the seat mounting seat 211 and can be clamped into or separated from the seat notches 31, and a seat locking block spring 33 which can enable the seat locking block 32 to be kept clamped into the seat notches 31 is arranged between the seat locking block 32 and the seat mounting seat 211. The seat unlocking assembly 4 comprises a seat unlocking block 42 which is slidably arranged on the seat joint block 61 and is connected with the seat locking block 32 through a seat pull rope 43, and a seat unlocking protrusion 41 which is arranged on the push rod joint block 62 and pushes the seat unlocking block 42 to slide relative to the seat joint block 61 when the push rod 5 is turned forwards relative to the seat support rod 2 so as to drive the seat locking block 32 to exit the seat gap 31.
The push rod unlocking assembly 7 comprises a push rod rotating block 71 which is rotatably arranged between the seat joint block 61 and the push rod joint block 62 and is provided with a push rod unlocking inclined plane 711, and a push rod unlocking operation part 72 which is arranged on the push rod 5 and drives the push rod rotating block 71 to rotate through a push rod pulling rope 721, wherein the outer gear 63 is provided with an outer gear spring 73 which is used for matching with the push rod unlocking inclined plane 711 when the push rod rotating block 71 rotates so as to push the outer gear 63 to be separated from the inner gear 64 on the seat joint block 61 and further release the locking state of the joint 6, and the outer gear spring 73 used for driving the outer gear 63 to slide and reset is arranged between the outer gear 63 and the push rod joint block 62.
In a reversible stroller frame as described above, the seat support rod 2 is detachably connected to the seat frame 20.
Compared with the prior art, the utility model has the advantages of as follows:
1. the utility model discloses when rotating the switching-over, user's manual operation push rod unblock subassembly is in order to relieve the relative seat bracing piece lock-out state of push rod, the relative seat bracing piece of operation push rod overturns forward after that, at this above-mentioned push rod upset in-process forward, can make seat unblock subassembly carry out the unblock in order to relieve seat bracing piece relative connection seat lock-out state to seat locking subassembly, the push rod is blockked by push rod stop gear and prevents its upset of foot bar direction forward this moment, then operation push rod rotates 180 along with seat bracing piece relative connection seat and commutates, be about to the seat frame and convert the orientation into the orientation backward by the orientation forward, because push rod stop gear restricts the push rod upset of foot bar direction forward, for this reason the push rod can only backward foot bar direction upset, make push rod around the switching-over be located back foot bar one side all the time, consequently the utility model discloses only need user's manual operation push rod unblock subassembly to relieve the lock-out state of joint, need not the unblock of manual operation seat locking subassembly, have convenient operation and reasonable in design's characteristics.
2. Be equipped with on the joint and be used for carrying out the unblock in order to relieve the seat unblock subassembly of the relative connecting seat locking state of seat bracing piece to seat locking subassembly when the relative seat bracing piece of push rod overturns forward to vertical state, can make the relative connecting seat rotation range of push rod less, be convenient for operate push rod and the relative connecting seat rotation switching-over of seat bracing piece, the utility model discloses the user can operate the push rod and drive the relative connecting seat rotation switching-over of seat bracing piece when standing in back foot pole one side, simple operation, safe and reliable.
[ description of the drawings ]
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
fig. 1 is a perspective view of the present invention.
Fig. 2 is a schematic view of the seat frame of the present invention in a forward direction.
Fig. 3 is a schematic view of the seat frame of the present invention in a structural state of the seat frame forward and the push rod turning to a vertical state relative to the seat support rod.
Fig. 4 is a schematic view of the seat frame of the present invention in a backward direction.
Fig. 5 is a schematic view of the use state of the push rod limiting mechanism when the seat supporting rod of the present invention is at the initial position.
Fig. 6 is a schematic view of the usage state of the push rod limiting mechanism when the seat supporting rod of the present invention rotates 180 degrees relative to the connecting seat.
Figure 7 is a cross-sectional view of the seat lock assembly and knuckle of the present invention.
Fig. 8 is a sectional view of the joint of the present invention.
Fig. 9 is a cross-sectional view of the seat lock assembly of the present invention.
Fig. 10 is a sectional view of the left side push rod limiting mechanism of the present invention.
Fig. 11 is an exploded view of the left joint of the present invention.
Fig. 12 is a schematic structural view of the left push rod limiting mechanism of the present invention.
Fig. 13 is an exploded view of the left push rod limiting mechanism of the present invention.
Fig. 14 is an exploded view of the linkage mechanism of the present invention.
Fig. 15 is a perspective view of the link mechanism of the present invention.
Fig. 16 is a schematic view of a use state of the link mechanism according to the present invention.
Fig. 17 is a second schematic view of the linkage mechanism of the present invention in use.
Fig. 18 is a perspective view of the right-hand linkage slider of the present invention.
[ detailed description ] embodiments
Embodiments of the present invention will be described in detail below with reference to fig. 1-18.
As shown in fig. 1-18, the present invention provides a reversible stroller frame, comprising:
the connecting seat 1, connecting seat 1 front side is connected with preceding foot bar 11, preceding foot bar 11 lower extreme is connected with preceding wheelset 111, connecting seat 1 rear side is connected with back foot bar 12, back foot bar 12 lower extreme is connected with rear wheel set 121.
The seat support rod 2 is rotatably connected to the connecting seat 1, and a seat locking assembly 3 for locking the seat support rod 2 relative to the connecting seat 1 is arranged between the seat support rod 2 and the connecting seat 1.
The push rod 5 is rotatably connected with the seat supporting rod 2 through a joint 6, and a push rod unlocking assembly 7 used for unlocking the locking state of the push rod 5 relative to the seat supporting rod 2 is arranged on the push rod 5.
The joint 6 is provided with a seat unlocking component 4 which is used for unlocking the seat locking component 3 when the push rod 5 turns forwards relative to the seat supporting rod 2 so as to release the locking state of the seat supporting rod 2 relative to the connecting seat 1.
The joint 6 is also provided with a push rod limiting mechanism 9 which is used for limiting the push rod 5 to continuously turn towards the front foot rod 11 direction when the push rod 5 turns forwards relative to the seat supporting rod 2 and after the seat locking assembly 3 is unlocked, and the push rod limiting mechanism 9 enables the push rod 5 to only turn towards the back foot rod 12 direction when the seat supporting rod 2 rotates 180 degrees relative to the connecting seat 1. The utility model discloses when rotating the switching-over, user's manual operation push rod unblock subassembly is in order to relieve the relative seat bracing piece lock-out state of push rod, then operate the relative seat bracing piece of push rod and overturn forward of push rod, in the forward upset process of above-mentioned push rod here, can make seat unblock subassembly unblock seat locking subassembly in order to relieve the relative connecting seat lock-out state of seat bracing piece, the push rod is stopped by push rod stop gear and prevents its forward foot bar direction upset by this moment, then the operation push rod rotates 180 degrees with the relative connecting seat bracing piece and commutates, will be about seat frame from forward direction to backward direction, because push rod stop gear limits the push rod to overturn forward foot bar direction, for this reason the push rod can only backward foot bar direction upset, make the push rod before and after the switching-over be located back foot bar one side all the time, therefore the utility model discloses only need user's manual operation push rod unblock subassembly to relieve the lock-out state of joint, need not to manually operate seat locking subassembly unblock, have convenient operation and reasonable in design's characteristics; then the utility model discloses under the condition that does not change front wheel group and rear wheel group rotation state, through the quick switching-over of the quick upset of push rod can make the fast turn-over of seat frame, and after the seat frame rotates the switching-over, this push rod can only be backward foot pole one side upset location and convenient to use person promotes the walking.
As shown in fig. 3, be equipped with on the joint 6 and be used for carrying out the unblock in order to relieve seat bracing piece 2 relative connecting seat 1 locking state's seat unblock subassembly 4 to seat locking subassembly 3 when 5 relative seat bracing pieces 2 overturn forward to vertical state, can make the relative connecting seat rotation range of push rod less for the central point that the focus position when the push rod rotates is close to the connecting seat puts, is convenient for operate push rod and the relative connecting seat rotation switching-over of seat bracing piece, the utility model discloses the user can operate push rod and drive the relative connecting seat rotation switching-over of seat bracing piece when standing in back foot rest one side, simple operation, safe and reliable.
Further, the joint 6 comprises a seat joint block 61 arranged on the seat support rod 2 and a pushrod joint block 62 arranged on the lower end of the pushrod 5 and rotatably connected with the seat joint block 61, an external gear 63 is slidably arranged between the seat joint block 61 and the pushrod joint block 62, and internal gears 64 capable of simultaneously meshing with the external gear 63 to lock the joint 6 are arranged on the seat joint block 61 and the pushrod joint block 62. The push rod limiting mechanism 9 comprises a first limiting rod 91 and a second limiting rod 92 which are telescopically arranged on the seat joint block 61, and the push rod limiting mechanism 9 further comprises a limiting block 93 which is arranged on the push rod joint block 62 and is used for limiting and matching with the first limiting rod 91 or the second limiting rod 92. When the seat supporting rod 2 is at the initial position, the first position-limiting rod 91 is close to one side of the front leg rod 11 and the second position-limiting rod 92 is far away from one side of the front leg rod 11, and after the push rod 5 is turned forward relative to the seat supporting rod 2 to unlock the seat locking assembly 3, the first position-limiting rod 91 extends out to block the position-limiting block 93 to limit the push rod 5 to continue to turn toward the front leg rod 11, as shown in fig. 5. When the seat support rod 2 rotates 180 degrees relative to the connecting seat 1, the first limiting rod 91 is far away from one side of the front leg rod 11, the second limiting rod 92 is close to one side of the front leg rod 11, and the second limiting rod 92 extends out to block the limiting block 93 so as to limit the push rod 5 to turn over towards the front leg rod 11, so that the push rod 5 can only turn over towards the rear leg rod 12, as shown in fig. 6.
In this embodiment, when the seat support rod 2 is in the initial position, i.e. the seat support rod 2 rotates 0 ° relative to the connecting seat 1, the seat frame 20 is oriented forward, as shown in fig. 2 and 3. When the seat support bar 2 is rotated 180 ° with respect to the connecting section 1, the seat frame 20 faces in the rear direction as shown in fig. 4.
Further, for convenience of operation, a linkage mechanism 8 for linking the first limiting rod 91 and the second limiting rod 92 to perform telescopic switching when the seat support rod 2 rotates relative to the connecting seat 1 is disposed between the seat support rod 2 and the connecting seat 1.
Furthermore, a seat rotating shaft 21 is arranged on the seat supporting rod 2 and is used for being rotatably connected with the connecting seat 1. The linkage mechanism 8 comprises a linkage sliding block 81 which is slidably arranged on the seat joint block 61, and a first linkage inclined surface 811 and a second linkage inclined surface 812 which can link the first limiting rod 91 and the second limiting rod 92 to retract relative to the seat joint block 61 when the linkage sliding block 81 slides up and down relative to the seat joint block 61 are arranged on the linkage sliding block 81. The linkage mechanism 8 further includes a first limiting rod spring 82 disposed between the first limiting rod 91 and the seat joint block 61 for driving the first limiting rod 91 to extend relative to the seat joint block 61, and a second limiting rod spring 83 disposed between the second limiting rod 92 and the seat joint block 61 for driving the second limiting rod 92 to extend relative to the seat joint block 61. The linkage mechanism 8 further comprises a linkage cam 84 which is arranged on the seat rotating shaft 21 and is provided with a convex part 841, and a driving slider 85 which is slidably arranged on the connecting seat 1, wherein a driving slider hole 851 which can be sleeved on the linkage cam 84 and is matched with the convex part 841 is arranged on the driving slider 85, the driving slider hole 851 is non-circular, and the driving slider 85 is connected with the linkage slider 81 through a linkage pull rope 86. When the seat support rod 2 drives the linkage cam 84 to rotate relative to the connecting seat 1, the convex portion 841 is in pushing fit with the side wall of the driving slider hole 851 so that the driving slider 85 slides relative to the connecting seat 1 and further drives the linkage slider 81 to slide downward relative to the seat joint block 61, and a linkage slider spring 813 for driving the linkage slider 81 to slide upward and reset relative to the seat joint block 61 when the driving slider 85 cancels the traction force on the linkage slider 81 is arranged between the linkage slider 81 and the seat joint block 61. In the present embodiment, the extended/retracted state of the first stopper rod 91 and the second stopper rod 92 in the right joint 6 is the same as the corresponding extended/retracted state of the first stopper rod 91 and the second stopper rod 92 in the left joint 6. And the inclination angle of the first linkage inclined plane 811 on the right side is opposite to that of the first linkage inclined plane 811 on the left side, and the inclination angle of the second linkage inclined plane 812 on the right side is opposite to that of the second linkage inclined plane 812 on the left side. The left-side interlocking slider 81 is shown in fig. 10 to 13, and the right-side interlocking slider 81 is shown in fig. 18.
Further, a seat mounting seat 211 is disposed on the seat rotation shaft 21. The seat locking assembly 3 comprises two seat notches 31 symmetrically arranged on the connecting seat 1 and a seat locking block 32 which is slidably arranged on the seat mounting seat 211 and can be clamped into or separated from the seat notches 31, and a seat locking block spring 33 which can enable the seat locking block 32 to be kept clamped into the seat notches 31 is arranged between the seat locking block 32 and the seat mounting seat 211. The seat unlocking assembly 4 comprises a seat unlocking block 42 which is slidably arranged on a seat joint block 61 and is connected with the seat locking block 32 through a seat pull rope 43, and a seat unlocking protrusion 41 which is arranged on a push rod joint block 62 and pushes the seat unlocking block 42 to slide relative to the seat joint block 61 when the push rod 5 overturns forwards relative to the seat supporting rod 2 so as to drive the seat locking block 32 to exit the seat gap 31. During unlocking, a user firstly operates the push rod unlocking assembly 7 to unlock the joint 6, then operates the push rod 5 to turn forwards relative to the seat supporting rod 2 until the seat unlocking protrusion 41 pushes the seat unlocking block 42 to transversely slide relative to the seat joint block 61, and further drives the seat locking block 32 to transversely slide relative to the connecting seat 1 through the seat pull rope 43 so as to withdraw from the seat gap 31, and then completes unlocking the seat supporting rod 2 relative to the connecting seat 1.
Further, the push rod unlocking assembly 7 comprises a push rod rotating block 71 which is rotatably arranged between the seat joint block 61 and the push rod joint block 62 and is provided with a push rod unlocking inclined plane 711, and a push rod unlocking operation part 72 which is arranged on the push rod 5 and drives the push rod rotating block 71 to rotate through a push rod pull rope 721, wherein the outer gear 63 is provided with a gear unlocking inclined plane 631 which is used for being matched with the push rod unlocking inclined plane 711 when the push rod rotating block 71 rotates so as to push the outer gear 63 to be separated from the inner gear 64 on the seat joint block 61 and further release the locking state of the joint 6, and an outer gear spring 73 which is used for driving the outer gear 63 to slide and reset is arranged between the outer gear 63 and the push rod joint block 62. During unlocking, the manual push rod unlocking operation part 72 of the user moves relative to the push rod 5 to drive the push rod rotating block 71 to rotate through the push rod pulling rope 721, and during the rotation of the push rod rotating block 71, the push rod unlocking inclined plane 711 pushes the gear unlocking inclined plane 631 to drive the outer gear 63 to be separated from the inner gear 64 on the seat joint block 61, so as to release the locking state of the joint 6, and at this time, the push rod 5 can rotate relative to the seat supporting rod 2.
Further, a seat frame 20 is detachably attached to the seat support bar 2.
The working principle is as follows:
the user manually operates the push rod unlocking operation part 72 to move relative to the push rod 5, so that the push rod unlocking operation part 72 drives the push rod rotating block 71 to rotate relative to the joint 6 through the push rod pulling rope 721, in the rotating process of the push rod rotating block 71, the push rod unlocking inclined plane 711 pushes the gear unlocking inclined plane 631 to drive the outer gear 63 to be separated from the inner gear 64 on the seat joint block 61, and then the locking state of the joint 6 is released, and at the moment, the push rod 5 can rotate relative to the seat supporting rod 2.
Then the user operates the push rod 5 to rotate forward relative to the seat support rod 2 to a vertical state, at this time, the seat unlocking protrusion 41 pushes the seat unlocking block 42 to slide transversely relative to the seat joint block 61 to drive the seat locking block 32 to exit from the seat gap 31, so as to unlock the seat support rod 2 relative to the connecting seat 1.
Then, the user operates the push rod 5 to drive the seat support rod 2 to rotate 180 degrees relative to the connecting seat 1 for reversing, in the process of reversing the rotation of the seat support rod 2, the seat support rod 2 drives the linkage cam 84 to rotate relative to the connecting seat 1 through the seat rotating shaft 21, that is, the state shown in fig. 16 is converted into the state shown in fig. 17, the protrusion 841 cooperates with the side wall of the driving slider hole 851 to drive the driving slider 85 to slide rightward relative to the connecting seat 1, that is, to slide toward the right side joint 6 side, at this time, the driving slider 85 drives the left linkage slider 81 to slide downward relative to the seat joint block 61 through the linkage pull rope 86, the first linkage inclined surface 811 of the left linkage slider 81 drives the first limit rod 91 to retract relative to the seat joint block 61, the second linkage inclined surface 812 cancels the acting force on the second limit rod 92, the second limit rod spring 83 drives the second limit rod 92 to extend relative to the seat joint block the limit block 93, and at this time, the first limit rod 91 is far away from the front foot rod 11 side and the second limit rod 92 is close to the front foot rod 11 side, so that the push rod 5 can only reverse in the direction. Meanwhile, when the driving slider 85 slides to the right relative to the connecting seat 1, the driving slider 85 cancels the traction force on the right-side linkage slider 81, the right-side linkage slider 81 is pushed by the linkage slider spring 813 to reset upwards relative to the seat joint block 61, because the inclination angle of the right-side first linkage inclined plane 811 is opposite to that of the left-side first linkage inclined plane 811, and the inclination angle of the right-side second linkage inclined plane 812 is opposite to that of the left-side second linkage inclined plane 812, the right-side first inclined plane 811 drives the first limiting rod 91 to retract, the second linkage inclined plane 812 cancels the acting force on the second limiting rod 92, and the second limiting rod spring 83 drives the second limiting rod 92 to extend relative to the seat joint block 61 to block the limiting block 93.
After the seat supporting rod 2 rotates 180 ° relative to the connecting seat 1, the user operates the push rod 5 to turn toward the rear foot rod 12, and at this time, the seat unlocking protrusion 41 cancels the acting force on the seat unlocking block 42, so that the seat locking block spring 33 drives the seat locking block 32 to be clamped into the seat notch 31 to lock the seat supporting rod 2 relative to the connecting seat 1.
Finally, the user cancels the acting force on the push rod unlocking operation part 72, the external gear spring 73 drives the external gear 63 to slide and reset so that the external gear 63 is engaged with the internal gears 64 on the seat joint block 61 and the push rod joint block 62, and the joint 6 is locked, namely, the reversing work of the frame is completed. Therefore, the utility model discloses a push rod is around rotating the switching-over, and the push rod is located back foot pole one side all the time, has simple operation, safe and reliable's characteristics.
Claims (8)
1. A reversible stroller frame, comprising:
the front side of the connecting seat (1) is connected with a front foot rod (11), the lower end of the front foot rod (11) is connected with a front wheel set (111), the rear side of the connecting seat (1) is connected with a rear foot rod (12), and the lower end of the rear foot rod (12) is connected with a rear wheel set (121);
the seat support rod (2) is rotatably connected to the connecting seat (1), and a seat locking assembly (3) used for locking the seat support rod (2) relative to the connecting seat (1) is arranged between the seat support rod (2) and the connecting seat (1);
the push rod (5) is rotatably connected with the seat supporting rod (2) through a joint (6), and a push rod unlocking assembly (7) used for unlocking the locking state of the push rod (5) relative to the seat supporting rod (2) is arranged on the push rod (5);
the joint (6) is provided with a seat unlocking component (4) which is used for unlocking the seat locking component (3) to release the locking state of the seat supporting rod (2) relative to the connecting seat (1) when the push rod (5) turns forwards relative to the seat supporting rod (2);
the joint (6) is further provided with a push rod limiting mechanism (9) which is used for limiting the push rod (5) to continuously turn towards the front foot rod (11) direction after the push rod (5) turns forwards relative to the seat supporting rod (2) and the seat locking assembly (3) is unlocked, and after the seat supporting rod (2) rotates 180 degrees relative to the connecting seat (1), the push rod limiting mechanism (9) enables the push rod (5) to only turn towards the back foot rod (12) direction.
2. A reversible stroller frame according to claim 1, characterized in that the joint (6) is provided with a seat unlocking assembly (4) for unlocking the seat locking assembly (3) to unlock the seat support bar (2) from the locking position with respect to the connecting base (1) when the push rod (5) is turned forward to the vertical position with respect to the seat support bar (2).
3. A reversible stroller frame according to claim 1 or 2, characterized in that the joint (6) comprises a seat joint block (61) provided on the seat support rod (2) and a pusher joint block (62) provided on the lower end of the pusher (5) and rotatably connected to the seat joint block (61), an external gear (63) is slidably provided between the seat joint block (61) and the pusher joint block (62), and internal teeth (64) capable of simultaneously engaging with the external gear (63) to lock the joint (6) are provided on the seat joint block (61) and the pusher joint block (62);
the push rod limiting mechanism (9) comprises a first limiting rod (91) and a second limiting rod (92) which are telescopically arranged on the seat joint block (61), and the push rod limiting mechanism (9) further comprises a limiting block (93) which is arranged on the push rod joint block (62) and is used for limiting and matching with the first limiting rod (91) or the second limiting rod (92);
when the seat supporting rod (2) is at an initial position, the first limiting rod (91) is close to one side of the front foot rod (11) and the second limiting rod (92) is far away from one side of the front foot rod (11), and when the push rod (5) turns forwards relative to the seat supporting rod (2) to unlock the seat locking assembly (3), the first limiting rod (91) extends out to block the limiting block (93) to limit the push rod (5) to continue to turn forwards towards the front foot rod (11);
when the seat supporting rod (2) rotates 180 degrees relative to the connecting seat (1), the first limiting rod (91) is far away from one side of the front foot rod (11) and the second limiting rod (92) is close to one side of the front foot rod (11), the second limiting rod (92) stretches out to block the limiting block (93) so as to limit the push rod (5) to overturn towards the front foot rod (11) direction, and then the push rod (5) can only overturn towards the rear foot rod (12) direction.
4. A reversible stroller frame according to claim 3, characterized in that a linkage mechanism (8) for linking the first stopper rod (91) and the second stopper rod (92) to switch the state in a telescopic manner when the seat support rod (2) rotates relative to the connecting base (1) is provided between the seat support rod (2) and the connecting base (1).
5. A reversible stroller frame according to claim 4, characterized in that the seat support rod (2) is provided with a seat rotation shaft (21) for rotatably connecting with the connecting base (1);
the linkage mechanism (8) comprises a linkage sliding block (81) which is slidably arranged on the seat joint block (61), and a first linkage inclined plane (811) and a second linkage inclined plane (812) which can link the first limiting rod (91) and the second limiting rod (92) to retract relative to the seat joint block (61) when the linkage sliding block (81) slides up and down relative to the seat joint block (61) are arranged on the linkage sliding block (81);
the linkage mechanism (8) further comprises a first limiting rod spring (82) which is arranged between the first limiting rod (91) and the seat joint block (61) and used for driving the first limiting rod (91) to extend out relative to the seat joint block (61), and a second limiting rod spring (83) which is arranged between the second limiting rod (92) and the seat joint block (61) and used for driving the second limiting rod (92) to extend out relative to the seat joint block (61);
the linkage mechanism (8) further comprises a linkage cam (84) which is arranged on the seat rotating shaft (21) and is provided with a convex part (841) and a driving slide block (85) which is arranged on the connecting seat (1) in a sliding mode, a driving slide block hole (851) which can be sleeved on the linkage cam (84) and is matched with the convex part (841) is formed in the driving slide block (85), the driving slide block hole (851) is non-circular, the driving slide block (85) and the linkage slide block (81) are connected through a linkage pull rope (86), when the seat supporting rod (2) drives the linkage cam (84) to rotate relative to the connecting seat (1), the convex part (841) is in pushing fit with the side wall of the driving slide block hole (851) so that the driving slide block (85) slides relative to the connecting seat (1) and further drives the linkage slide block (81) to slide downward relative to the seat joint block (61), and a linkage spring (813) which is used for driving the linkage slide block (81) to slide upward relative to the seat joint block (61) when the driving slide block (81) when the driving slide to the traction force of the linkage slide block (81) is cancelled by the driving slide block (85) is arranged between the seat joint block (61) and the seat joint block (61) is arranged between the seat joint block (61).
6. A reversible stroller frame according to claim 5, characterized in that the seat pivot (21) is provided with a seat mounting seat (211);
the seat locking assembly (3) comprises two seat gaps (31) symmetrically arranged on the connecting seat (1) and a seat locking block (32) which is slidably arranged on the seat mounting seat (211) and can be clamped into or separated from the seat gaps (31), and a seat locking block spring (33) which can enable the seat locking block (32) to be kept clamped into the seat gaps (31) is arranged between the seat locking block (32) and the seat mounting seat (211);
the seat unlocking assembly (4) comprises a seat unlocking block (42) which is slidably arranged on a seat joint block (61) and is connected with the seat locking block (32) through a seat pull rope (43), and a seat unlocking protrusion (41) which is arranged on a push rod joint block (62) and pushes the seat unlocking block (42) to slide relative to the seat joint block (61) when a push rod (5) overturns forwards relative to the seat supporting rod (2) so as to drive the seat locking block (32) to exit from the seat gap (31).
7. The reversible stroller frame according to claim 3, wherein the push rod unlocking assembly (7) comprises a push rod rotating block (71) rotatably arranged between the seat joint block (61) and the push rod joint block (62) and having a push rod unlocking inclined surface (711), and a push rod unlocking operation part (72) arranged on the push rod (5) and driving the push rod rotating block (71) to rotate through a push rod pulling rope (721), the outer gear (63) is provided with a gear unlocking inclined surface (631) which is used for being matched with the push rod unlocking inclined surface (711) when the push rod rotating block (71) rotates to push the outer gear (63) to be separated from the inner gear (64) on the seat joint block (61) so as to release the locking state of the joint (6), and a gear unlocking inclined surface (73) for driving the outer gear (63) to slide and reset is arranged between the outer gear (63) and the push rod joint block (62).
8. A reversible stroller frame according to claim 1, characterized in that a seat frame (20) is detachably connected to the seat support bar (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221326082.5U CN217730533U (en) | 2022-05-28 | 2022-05-28 | Reversible baby carriage frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221326082.5U CN217730533U (en) | 2022-05-28 | 2022-05-28 | Reversible baby carriage frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217730533U true CN217730533U (en) | 2022-11-04 |
Family
ID=83837772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221326082.5U Active CN217730533U (en) | 2022-05-28 | 2022-05-28 | Reversible baby carriage frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217730533U (en) |
-
2022
- 2022-05-28 CN CN202221326082.5U patent/CN217730533U/en active Active
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