CN214524028U - Push rod reversing device of carrier and carrier - Google Patents

Abstract

The utility model discloses a carrier's push rod switching-over device, including the bottom sprag frame, the bottom sprag frame include front leg and back leg, the front leg lower extreme is connected with the front wheel subassembly, the back leg lower extreme be connected with the back wheel subassembly, be equipped with the directional subassembly of front wheel that can lock front wheel subassembly advancing direction between front wheel subassembly and the front leg, rear wheel subassembly and back leg between be equipped with the directional subassembly of rear wheel that can lock rear wheel subassembly advancing direction, bottom sprag frame upper end still can rotate and be connected with the push rod, push rod and bottom sprag frame between be equipped with the switching-over locking subassembly that can lock the push rod position, push rod and bottom sprag frame between be equipped with front wheel unlocking piece and rear wheel unlocking piece, front wheel unlocking piece and the directional subassembly of front wheel link to each other, rear wheel unlocking piece and rear wheel directional subassembly link to each other. The utility model aims at overcoming the defects of the prior art and providing a push rod reversing device of a delivery vehicle with convenient rotation and reversing.

Description

Push rod reversing device of carrier and carrier

[ technical field ] A method for producing a semiconductor device

The utility model relates to a push rod switching-over device and delivery vehicle of delivery vehicle.

[ background of the invention ]

At present, infant handcart and pet handcart have become the common product of modern family life, and the handlebar pole of some perambulator on the market at present can commutate, consequently, can forward the perambulator or backward push the perambulator, and when forward pushing, the adult can face the same direction with the infant who takes in the perambulator, and when backward pushing, the adult can be with the infant in the perambulator face-to-face interaction. But the handlebar pole switching-over structure of perambulator on the existing market is more complicated, and the switching-over flexibility is poor, appears the jamming easily.

The utility model discloses just produce based on above-mentioned not enough.

[ Utility model ] content

The utility model aims at overcoming the defects of the prior art and providing a push rod reversing device of a delivery vehicle with convenient rotation and reversing.

The utility model also provides an adopt the delivery vehicle of aforementioned push rod switching-over device. The carrier is convenient to rotate and change direction, and the volume is small after being folded.

The utility model discloses a realize through following technical scheme:

the utility model provides a push rod reversing device of a carrier, which is characterized in that the device comprises a bottom support frame 1, the bottom support frame 1 comprises a front leg 11 and a rear leg 12 connected with the front leg 11, the lower end of the front leg 11 is connected with a front wheel component 3, the lower end of the rear leg 12 is connected with a rear wheel component 4, a front wheel directional component 5 capable of locking the advancing direction of the front wheel component 3 is arranged between the front wheel component 3 and the front leg 11, a rear wheel directional component 6 capable of locking the advancing direction of the rear wheel component 4 is arranged between the rear wheel component 4 and the rear leg 12, the upper end of the bottom support frame 1 can be rotatably connected with a push rod 22, a reversing locking component 7 capable of locking the position of the push rod 22 after the push rod 22 is reversed is arranged between the push rod 22 and the bottom support frame 1, a front wheel unlocking component 81 and a rear wheel unlocking component 82 are arranged between the push rod 22 and the bottom support frame 1, the front wheel unlocking piece 81 and the front wheel directional component 5 are connected, the rear wheel unlocking piece 82 and the rear wheel directional component 6 are connected, the position where the front wheel unlocking piece 81 stays comprises a front wheel locking position and a front wheel releasing position, when the front wheel unlocking piece 81 is located in the front wheel locking position, the front wheel directional component 5 is locked, when the front wheel unlocking piece 81 is located in the front wheel releasing position, the front wheel directional component 5 is unlocked, the position where the rear wheel unlocking piece 82 stays comprises a rear wheel locking position and a rear wheel releasing position, when the rear wheel unlocking piece 82 is located in the rear wheel locking position, the rear wheel directional component 6 is locked, when the rear wheel unlocking piece 82 is located in the rear wheel releasing position, the rear wheel directional component 6 is unlocked, a driving part 75 capable of rotating along with the push rod 22 is further arranged between the push rod 22 and the bottom support frame 1, when the push rod 22 rotates forwards, the driving part 75 pushes the front wheel unlocking part 81 to move to the front wheel locking position and make the rear wheel unlocking part 82 move to the rear wheel releasing position, when the push rod 22 rotates backwards, the driving part 75 pushes the rear wheel unlocking part 82 to move to the rear wheel locking position and make the front wheel unlocking part 81 move to the front wheel releasing position.

The push rod reversing device of the vehicle is characterized in that: the driving part 75 includes an arc driving piece 751 deviating from the rotation center a of the push rod 22, the arc driving piece 751 has a first extrados surface 752 and a second extrados surface 753, when the push rod 22 rotates forwards, the first extrados surface 752 releases the rear wheel unlocking member 82 so that the rear wheel unlocking member 82 can move from the rear wheel locking position to the rear wheel releasing position, and the second extrados surface 753 presses the front wheel unlocking member 81 so that the front wheel unlocking member 81 moves from the front wheel releasing position to the front wheel locking position; when the push rod 22 rotates backward, the first outward arc surface 752 presses the rear wheel unlocking member 82 to move the rear wheel unlocking member 82 from the rear wheel unlocking position to the rear wheel locking position, and the second outward arc surface 753 releases the front wheel unlocking member 81 to move the front wheel unlocking member 81 from the front wheel locking position to the front wheel unlocking position.

The push rod reversing device of the vehicle is characterized in that: the front wheel unlocking part 81 comprises a front sliding block 811, a first inclined sliding surface 812 which can be used for pressing the first extrados 752 is arranged on the front sliding block 811, the rear wheel unlocking part 82 comprises a rear sliding block 821, and a second inclined sliding surface 822 which can be used for pressing the first extrados 752 is arranged on the rear sliding block 821.

The push rod reversing device of the vehicle is characterized in that: the front wheel assembly 3 comprises a front wheel support 31 movably connected to the lower end of the front leg 11 and a front wheel 32 connected to the front wheel support 31, the front wheel orientation assembly 5 comprises a first orientation member 51 connected to the inside of the front leg 11 and capable of sliding up and down relative to the front leg 11, the front wheel support 31 is provided with a first engaging groove 311 into which the first orientation member 51 can be inserted when sliding down, a third elastic member 53 capable of keeping the first orientation member 51 and the first engaging groove 311 locked is arranged between the first orientation member 51 and the front leg 11, the first orientation member 51 and the front wheel unlocking member 81 are connected with each other through a second cable 52, a first elastic member 83 capable of lifting up the front wheel unlocking member 81 to separate the first orientation member 51 from the first engaging groove 311 is arranged between the front wheel unlocking member 81 and the bottom support frame 1, the elastic force of the first elastic member 83 is greater than that of the third elastic member 53;

the rear wheel assembly 4 includes a rear wheel bracket 41 movably coupled to a lower end of the rear leg 12 and a rear wheel 42 coupled to the rear wheel bracket 41, the rear wheel orientation assembly 6 includes a second positioning member 61 disposed in the rear leg 12 and capable of sliding up and down relative to the rear leg 12, the rear wheel bracket 41 is provided with a second engaging groove 411 into which the second positioning member 61 can be inserted when sliding downward, a fourth elastic member 63 capable of keeping the second positioning member 61 and the second engaging slot 411 locked is further disposed between the second positioning member 61 and the rear leg 12, the second positioning member 61 and the rear wheel unlocking member 82 are connected with each other by a third cable 62, a second elastic member 84 capable of lifting up the front wheel unlocking member 81 to separate the second positioning member 61 from the second engaging slot 411 is further disposed between the rear wheel unlocking member 82 and the bottom support frame 1, and the elastic force of the second elastic member 84 is greater than that of the fourth elastic member 63.

The push rod reversing device of the vehicle is characterized in that: the reversing locking assembly 7 comprises a left shell 71 arranged on the bottom support frame 1 and a right shell 72 arranged on the push rod 22, spline grooves 73 are formed in the left shell 71 and the right shell 72, an accommodating cavity 74 is defined by the left shell 71 and the right shell 72, splines 79 capable of transversely moving in the accommodating cavity 74 and simultaneously clamped with the spline grooves 73 on the left shell 71 and the right shell 72 are arranged in the accommodating cavity 74, a driving portion 75 is arranged on the splines 79, a sliding sleeve 76 capable of sliding relative to the sliding portion is arranged on the push rod 22, a first pull cable 77 capable of connecting the splines 79 and the splines 73 on the left shell 71 when the sliding sleeve 76 slides is arranged between the sliding sleeve 76 and the splines 79, and a reset piece 78 capable of driving the splines 79 to reset is arranged between the splines 79 and the right shell 72.

The push rod reversing device of the vehicle is characterized in that: the front legs 11 are rotatably connected with the rear legs 12, the rear legs 12 are provided with connecting rods 21 rotatably connected with the rear legs 12, and the push rods 22 are rotatably connected on the connecting rods 21.

The utility model discloses the second aspect still provides a delivery vehicle, a serial communication port, include: a push rod reverser for a vehicle as described above.

The vehicle as described above, characterized in that: the baby stroller frame is characterized in that the front legs 11 are rotatably connected with the rear legs 12, the rear legs 12 are provided with connecting rods 21 rotatably connected with the rear legs 12, the push rods 22 are rotatably connected onto the connecting rods 21, the carrying tool further comprises seat assemblies 91 rotatably connected onto the connecting rods 21, linkage rods 16 capable of being rotatably connected with the seat assemblies 91 and the rear legs 12 are further arranged between the seat assemblies 91 and the rear legs 12, the rear legs 12 are further rotatably connected with folding traction assemblies 92, one ends of the folding traction assemblies 92 are rotatably connected with the front legs 11, and the other ends of the folding traction assemblies are rotatably connected with the seat assemblies 91, so that the seat assemblies 91 and the front legs 11 can be drawn to be folded towards the rear legs 12 when the baby stroller frame is folded.

The vehicle as described above, characterized in that: the folding traction assembly 92 comprises a first traction rod 13, a second traction rod 14 and a third traction rod 15, the front end of the first traction rod 13 is rotatably connected to the front leg 11, the front end of the second traction rod 14 is rotatably connected with the rear end of the first traction rod 13, the rear end of the second traction rod 14 is rotatably connected to the rear leg 12, the lower end of the third traction rod 15 is rotatably connected to the second traction rod 14, the upper end of the third traction rod 15 is rotatably connected to the seat assembly 91, and a transmission assembly 93 rotatably connected with the push rod 22 and the seat assembly 91 is further arranged between the push rod 22 and the seat assembly 91.

The vehicle as described above, characterized in that: the driving assembly 93 includes a driving rod frame 931 rotatably connected to the push rod 22, a driving rod 932 disposed between the driving rod frame 931 and the seat assembly 91 for driving the driving rod frame 931 to rotate downward to push the seat assembly 91 to rotate when the stroller frame is folded, an upper end of the driving rod 932 is rotatably connected to a lower end of the driving rod frame 931, and a lower end of the driving rod frame 931 is rotatably connected to a rear side of the seat assembly 91;

or, the connecting rod 21 is further provided with a push rod frame 23 connected to the inner side of the push rod 22, the transmission assembly 93 comprises a transmission rod frame 931 rotatably connected to the push rod frame 23, a transmission rod 932 is arranged between the transmission rod frame 931 and the seat assembly 91, the transmission rod frame 931 rotates downwards to push the seat assembly 91 to rotate when the stroller frame is folded, the upper end of the transmission rod 932 is rotatably connected to the lower end of the transmission rod frame 931, and the lower end of the transmission rod frame 931 is rotatably connected to the rear side of the seat assembly 91.

Compared with the prior art, the utility model discloses there is following advantage: the utility model provides an when the push rod is locked when forward position by switching-over locking subassembly, the front wheel deblocking spare is located front wheel release position, the drive division makes the rear wheel deblocking spare be in rear wheel lock location, the directional subassembly of rear wheel is locked rear wheel subassembly and back leg this moment, the rear wheel subassembly can only be advanced towards a direction orientation, and the unblock of the directional subassembly of front wheel, at this moment, the front wheel subassembly can 360 degrees rotations of relative front leg, be convenient for change the direction of advance at the forward propulsion in-process, when the push rod forward is carried carrier, adult and infant or pet face towards same direction. When an adult needs to push the carrier towards an infant or a pet, the push rod needs to be rotated forwards to a reverse position, the reversing locking component is unlocked firstly, the push rod is pushed to rotate forwards to one side of the front wheel component, the driving part rotates along with the push rod in the process of pushing the push rod to rotate, so that the front wheel unlocking component moves from a front wheel releasing position to a front wheel locking position, at the same time, the front wheel component and the front legs are locked through the front wheel orienting component, the rear wheel unlocking component moves from a rear wheel locking position to a rear wheel releasing position, the rear wheel orienting component is unlocked, the rear wheel component can rotate 360 degrees relative to the rear legs, the front wheel component can only directionally advance towards one direction, the push rod can push from the reverse position and freely change the advancing direction, the infant or the pet faces the adult, the observation of the adult is facilitated, the infant or the pet can be steered only by pushing the push rod to rotate forwards or backwards after unlocking the reversing locking component, simple structure, convenient operation and convenient use.

[ description of the drawings ]

FIG. 1 is a perspective view of a push rod reversing device of the present invention;

fig. 2 is a second perspective view of the push rod reversing device of the present invention;

FIG. 3 is one of the exploded views of the push rod reverser of the vehicle of the present invention;

FIG. 4 is a second exploded view of the push rod reversing device of the vehicle of the present invention;

FIG. 5 is a cross-sectional view of the push rod reverser of the vehicle of the present invention;

FIG. 6 is an enlarged view of area B of FIG. 5;

FIG. 7 is a cross-sectional view of the front or rear wheel assembly of the push rod reverser of the vehicle of the present invention;

FIG. 8 is an exploded view of the front or rear wheel assembly of the push rod reverser of the vehicle of the present invention;

FIG. 9 is a plan view of the driving portion of the push rod reverser of the vehicle of the present invention;

figure 10 is one of the perspective views of the vehicle of the present invention;

fig. 11 is a second perspective view of the vehicle of the present invention;

figure 12 is one of the plan views of the vehicle of the present invention when folded;

fig. 13 is a second plan view of the vehicle of the present invention when folded;

figure 14 is a plan view of another embodiment of the vehicle of the present invention.

[ detailed description ] embodiments

The invention will be further described with reference to the accompanying drawings:

as shown in fig. 1 to 9, a first aspect of the present invention provides a push rod reversing device for a vehicle, including: the bottom support frame 1, the bottom support frame 1 include the foreleg 11 and the back leg 12 connected with foreleg 11, the lower extreme of foreleg 11 connect with the front wheel subassembly 3, the lower extreme of back leg 12 connect with the back wheel subassembly 4, be equipped with the front wheel directional subassembly 5 that can lock the direction of travel of the front wheel subassembly 3 between the front wheel subassembly 3 and the foreleg 11, be equipped with the rear wheel directional subassembly 6 that can lock the direction of travel of the back wheel subassembly 4 between the back wheel subassembly 4 and the back leg 12, the upper end of the bottom support frame 1 still can be rotated and connected with the push rod 22, be equipped with the switching locking subassembly 7 that can lock the position of the push rod 22 after the push rod 22 commutates between the push rod 22 and the bottom support frame 1, be equipped with forewheel unblocking piece 81 and rear wheel unblocking piece 82 between the push rod 22 and the bottom support frame 1, the forewheel unblocking piece 81 and the forewheel directional subassembly 5 link to each other, rear wheel unlocking piece 82 link to each other with rear wheel directional assembly 6, the position that front wheel unlocking piece 81 stops include front wheel lock location and front wheel release position, when front wheel unlocking piece 81 is located the front wheel lock location, the directional subassembly 5 of front wheel lock, when front wheel unlocking piece 81 is located the front wheel release position, the directional subassembly 5 of front wheel unblock, and the position that rear wheel unlocking piece 82 stops include rear wheel lock location and rear wheel release position, when rear wheel unlocking piece 82 is located the rear wheel lock location, the directional subassembly 6 of rear wheel lock, when rear wheel unlocking piece 82 is located the rear wheel release position, the directional subassembly 6 of rear wheel unblock, push rod 22 and bottom sprag frame 1 between still be equipped with and follow push rod 22 pivoted drive 75, when push rod 22 rotates forward, drive 75 promote front wheel unlocking piece 81 to move to the front wheel lock location and make rear wheel unlocking piece 82 move to the rear wheel release position, when the push rod 22 is rotated backward, the driving part 75 pushes the rear wheel unlocking member 82 to move to the rear wheel locking position and moves the front wheel unlocking member 81 to the front wheel releasing position.

The push rod 22 has a forward position and a reverse position, and when the push rod 22 is in the forward position, the push rod 22 is positioned above the rear leg 12, and when the push rod 22 is in the reverse position, the push rod 22 is positioned above the front leg 11. As shown in fig. 3 to 6, when the push rod 22 is locked at the forward position by the reversing lock assembly 7, the front wheel unlocking member 81 is located at the front wheel releasing position, the driving portion 75 makes the rear wheel unlocking member 82 located at the rear wheel locking position, at this time, the rear wheel orienting assembly 6 locks the rear wheel assembly 4 with the rear legs 12, the rear wheel assembly 4 can only advance directionally in one direction, and the front wheel orienting assembly 5 is unlocked, at this time, the front wheel assembly 3 can rotate 360 degrees relative to the front legs 11, so that the advancing direction can be changed during the forward advancing process, and when the push rod 22 pushes the carrier forward, the adult and the infant or the pet face the same direction. When an adult needs to push the carrier towards an infant or a pet, the push rod 22 needs to be rotated forwards to a reverse position, the reversing locking component 7 is unlocked firstly, then the push rod 22 is pushed to rotate forwards to one side of the front wheel component 3, the driving part 75 rotates along with the push rod 22, so that the front wheel unlocking component 81 moves from a front wheel releasing position to a front wheel locking position, at the same time, the front wheel component 3 and the front legs 11 are locked through the front wheel orienting component 5, the rear wheel unlocking component 82 moves from a rear wheel locking position to a rear wheel releasing position, the rear wheel orienting component 6 is unlocked, the rear wheel component 4 can rotate 360 degrees relative to the rear legs 12, the front wheel component 3 can only directionally advance towards one direction, the push rod 22 can push from the reverse position and freely change the advancing direction, the infant or the pet faces towards the adult, the reversing locking component 7 is convenient for the adult to observe, and the carrier can be steered only by pushing the push rod 22 to rotate forwards or backwards after unlocking the locking component 7, simple structure, convenient operation and convenient use.

As shown in fig. 6 or 9, the driving part 75 includes an arc-shaped driving piece 751 deviating from the rotation axis a of the push rod 22, the arc-shaped driving piece 751 has a first camber surface 752 and a second camber surface 753, when the push rod 22 rotates forward, the first camber surface 752 releases the rear wheel unlocking member 82 so that the rear wheel unlocking member 82 can move from the rear wheel locking position to the rear wheel releasing position, and the second camber surface 753 presses the front wheel unlocking member 81 so that the front wheel unlocking member 81 moves from the front wheel releasing position to the front wheel locking position; when the push rod 22 rotates backward, the first outward arc surface 752 presses the rear wheel unlocking member 82 to move the rear wheel unlocking member 82 from the rear wheel unlocking position to the rear wheel locking position, and the second outward arc surface 753 releases the front wheel unlocking member 81 to move the front wheel unlocking member 81 from the front wheel locking position to the front wheel unlocking position. As shown in fig. 6, the front wheel unlocking member 81 includes a front sliding block 811, the front sliding block 811 is provided with a first inclined sliding surface 812 against which the first extrados 752 can press, the rear wheel unlocking member 82 includes a rear sliding block 821, and the rear sliding block 821 is provided with a second inclined sliding surface 822 against which the first extrados 752 can press.

When the push rod 22 rotates forwards from the forward position to the reverse position, the arc-shaped driving piece 751 rotates along with the push rod 22, the first extrados surface 752 releases the rear wheel unlocking piece 82 so that the rear wheel unlocking piece 82 moves upwards and can move from the rear wheel locking position to the rear wheel releasing position, at this time, the rear wheel assembly 4 and the rear leg 12 are unlocked, the rear wheel assembly 4 can rotate 360 degrees relative to the rear leg 12, the arc-shaped driving piece 751 moves continuously, the second extrados surface 753 presses the front wheel unlocking piece 81 so that the front wheel unlocking piece 81 moves downwards and moves from the front wheel releasing position to the front wheel locking position, at this time, the front wheel assembly 3 and the front leg are locked by the front wheel orienting assembly 5, and the front wheel assembly 3 can only move towards one direction. The distance from the rotation axis a to the first and second camber surfaces 752 and 753 can be changed to allow the driving portion 751 to release or press the front-wheel unlocking member 81 and the rear-wheel unlocking member 82 when rotating. The first and second slanted sliding surfaces 812 and 822 enable smooth sliding between the arc-shaped driving piece 751 and the front and rear wheel unlocking pieces 81 and 82.

As shown in fig. 3 to 8, the front wheel assembly 3 includes a front wheel bracket 31 movably connected to a lower end of the front leg 11 and a front wheel 32 connected to the front wheel bracket 31, the front wheel alignment assembly 5 includes a first alignment member 51 connected to the front leg 11 and capable of sliding up and down relative to the front leg 11, the front wheel bracket 31 is provided with a first engaging groove 311 into which the first alignment member 51 is inserted when sliding down, a third elastic member 53 capable of keeping the first alignment member 51 and the first engaging groove 311 in an engaged state is further provided between the first alignment member 51 and the front leg 11, the first alignment member 51 and the front wheel unlocking member 81 are connected to each other by a second cable 52, a first elastic engaging member 83 capable of lifting up the front wheel unlocking member 81 to disengage the first alignment member 51 from the first engaging groove 311 is further provided between the front wheel unlocking member 81 and the bottom support frame 1, the elastic force of the first elastic member 83 is greater than that of the third elastic member 53. The rear wheel assembly 4 includes a rear wheel bracket 41 movably coupled to a lower end of the rear leg 12 and a rear wheel 42 coupled to the rear wheel bracket 41, the rear wheel orientation assembly 6 includes a second positioning member 61 disposed in the rear leg 12 and capable of sliding up and down relative to the rear leg 12, the rear wheel bracket 41 is provided with a second engaging groove 411 into which the second positioning member 61 can be inserted when sliding downward, a fourth elastic member 63 capable of keeping the second positioning member 61 and the second engaging slot 411 locked is further disposed between the second positioning member 61 and the rear leg 12, the second positioning member 61 and the rear wheel unlocking member 82 are connected with each other by a third cable 62, a second elastic member 84 capable of lifting up the front wheel unlocking member 81 to separate the second positioning member 61 from the second engaging slot 411 is further disposed between the rear wheel unlocking member 82 and the bottom support frame 1, and the elastic force of the second elastic member 84 is greater than that of the fourth elastic member 63.

When the push rod 22 moves from the forward position to the reverse position by rotating forward, the arc-shaped driving piece 751 rotates clockwise, the first extrados 752 rotates relative to the rear wheel unlocking piece 82, so that the rear wheel unlocking piece 82 is separated from the first extrados 752, the second elastic piece 84 presses the rear wheel unlocking piece 82 upwards, so that the rear wheel unlocking piece 82 moves from the rear wheel locking position to the rear wheel releasing position, the rear wheel unlocking piece 82 moves upwards and pulls the third pulling rope 62 upwards, because the elastic force of the second elastic piece 84 is larger than that of the fourth elastic piece 63, the second positioning piece 61 overcomes the elastic force of the fourth elastic piece 63 to separate from the second clamping groove 411, at this time, the rear wheel bracket 41 can rotate 360 degrees relative to the rear leg 12, and simultaneously, the arc-shaped driving piece 751 rotates continuously until the second extrados 753 contacts with the front wheel unlocking piece 81 and presses the front wheel unlocking piece 81 to move downwards, the front wheel unlocking piece 81 moves from the front wheel releasing position to the front wheel locking position, the front wheel unlocking piece 81 is pressed by the second outer arc face 753, the first elastic piece 83 is pressed to move downwards and is compressed, the second pull rope 52 is released when the front wheel unlocking piece 81 moves downwards, the third elastic piece 53 moves downwards and moves to a release state from a compression state, the first positioning piece 51 is ejected out of the front leg 11 when the third elastic piece 53 is released, the front wheel support 31 and the front leg 11 are locked until the first positioning piece 51 is inserted into the first clamping groove 311 and is used for directional movement, when the position is reversed, an adult faces towards a pet or an infant, the adult can conveniently look after the pet or the infant, steering can be completed only by rotating the push rod 22, and the design is ingenious.

As shown in fig. 3 to 4, the reversing lock assembly 7 comprises a left housing 71 arranged on the bottom bracket 1 and a right housing 72 arranged on the push rod 22, spline grooves 73 are arranged in the left shell 71 and the right shell 72, an accommodating cavity 74 is enclosed by the left shell 71 and the right shell 72, the accommodating cavity 74 is provided with a spline 79 which can transversely move in the accommodating cavity and can be simultaneously clamped with the spline grooves 73 on the left shell 71 and the right shell 72, the driving part 75 is arranged on a spline 79, the push rod 22 is provided with a sliding sleeve 76 which can slide relative to the push rod, a first cable 77 which can connect the sliding sleeve 76 and the spline 79 and can pull the spline 79 to be separated from the spline groove 73 on the left shell 71 when the sliding sleeve 76 slides is arranged between the sliding sleeve 76 and the spline 79, and a reset piece 78 which can drive the spline 79 to reset is arranged between the spline 79 and the right shell 72. When the push rod 22 needs to rotate and reverse, the reversing locking assembly 7 needs to be unlocked, the sliding sleeve 76 is pulled, the sliding sleeve 76 slides upwards relative to the push rod 22 and pulls the first pull cable 77, the first pull cable 77 moves upwards along with the push rod 22 and is tightened, the other end of the first pull cable 77 pulls the spline 79 to move transversely in the accommodating cavity 74 until the spline 79 is separated from the spline groove 73 in the left shell 71, and at the moment, the push rod 22 can rotate and reverse relative to the bottom support frame 1. The return member 78 is a spring.

As shown in fig. 1 to 2, the front leg 11 is rotatably connected to the rear leg 12, the rear leg 12 is provided with a connecting rod 21 rotatably connected thereto, and the push rod 22 is rotatably connected to the connecting rod 21. When the carrier needs to be folded, the carrier can be folded towards the rear legs 12 by rotating the front legs 11, and the connecting rods 21 rotate to drive the push rods 22 to fold towards the rear legs 12, so that the size of the bottom support frame 1 is small when the carrier is folded, and the carrier is convenient for a user to carry.

As shown in fig. 10 to 13, a second aspect of the present invention provides a vehicle, including the push rod reversing device. The reversing is realized through the push rod reversing device, so that the delivery vehicle can be used through a forward position and a reverse position.

As shown in fig. 10 to 13, the front legs 11 are rotatably connected to the rear legs 12, the rear legs 12 are provided with connecting rods 21 rotatably connected to the rear legs 12, the push rods 22 are rotatably connected to the connecting rods 21, the carrier further comprises seat assemblies 91 rotatably connected to the connecting rods 21, linkage rods 16 rotatably connected to the seat assemblies 91 and the rear legs 12 are further provided between the seat assemblies 91 and the rear legs 12, the rear legs 12 are further rotatably connected to folding traction assemblies 92, one ends of the folding traction assemblies 92 are rotatably connected to the front legs 11, and the other ends of the folding traction assemblies 92 are rotatably connected to the seat assemblies 91, so that the seat assemblies 91 and the front legs 11 can be drawn to be folded toward the rear legs 12 when the infant stroller is folded.

When the infant frame needs to be folded, the push rod 22 is pushed downwards, the upper end of the push rod 22 is drawn towards the rear wheel assembly 4, the lower end of the push rod 22 rotates downwards relative to the rear legs 12 along with the connecting rod 21, in the process that the connecting rod 21 rotates downwards, the seat assembly 91 also rotates relative to the rear legs 12, when the seat assembly 91 rotates, one end of the linkage rod 16 and the folding traction assembly 92 connected with the seat assembly 91 can be pushed to rotate downwards, one end of the folding traction assembly 92 connected with the seat assembly 91 draws the other end of the folding traction assembly 92 towards the rear legs 12 along with the seat assembly 91 when drawing towards the rear legs 12, so that the front legs 11 are drawn towards the rear legs 12 to be folded, when the upper end of the push rod 22 is drawn towards the rear wheel assembly 4, the whole infant frame is folded, when being folded, the seat assembly 91, the front legs 11 and the rear legs 12 can be folded simultaneously only by pushing the push rod 22, the operation is convenient, and the volume of the folded carrier is small, is convenient for users to store.

As shown in fig. 10 to 13, the folding traction assembly 92 includes a first traction rod 13, a second traction rod 14 and a third traction rod 15, wherein the front end of the first traction rod 13 is rotatably connected to the front leg 11, the front end of the second traction rod 14 is rotatably connected to the rear end of the first traction rod 13, the rear end of the second traction rod 14 is rotatably connected to the rear leg 12, the lower end of the third traction rod 15 is rotatably connected to the second traction rod 14, the upper end of the third traction rod 15 is rotatably connected to the seat assembly 91, and a transmission assembly 93 rotatably connected to the push rod 22 and the seat assembly 91 is further disposed between the push rod 22 and the seat assembly 91.

When the push rod 22 rotates downwards, the seat assembly 91 rotates along with the push rod 22, the linkage rod 16 and the third traction rod 15 can be pushed to rotate downwards when the seat assembly 91 rotates, the lower end of the linkage rod 16 rotates relative to the rear leg 12, so that the seat assembly 91 presses the third traction rod 15 downwards, the upper end of the third traction rod 15 rotates relative to the seat assembly 91, the lower end of the third traction rod 15 moves downwards, the lower end of the third traction rod 15 can press the front end of the second traction rod 14 to move downwards and rotate relative to the second traction rod 14, at the moment, the rear end of the second traction rod 14 rotates relative to the rear leg 12 under the pressing of the third traction rod 15, the front end of the second traction rod 14 drives the rear end of the first traction rod 13 to move downwards and draw close, the front end of the first traction rod 13 rotates relative to the front leg 11, so that the front leg 11 rotates and draws close relative to the rear leg 12, and the seat assembly 91, the seat assembly, The folding of the front legs 11 and the rear legs 12 is convenient to operate and smoother to fold.

As shown in fig. 10 to 13, the driving assembly 93 includes a driving lever frame 931 rotatably coupled to the push rod 22, a driving lever 932 disposed between the driving lever frame 931 and the seat assembly 91 such that the driving lever frame 931 rotates downward to push the seat assembly 91 to rotate when the stroller frame is folded, an upper end of the driving lever 932 is rotatably coupled to a lower end of the driving lever frame 931, and a lower end of the driving lever frame 931 is rotatably coupled to a rear side of the seat assembly 91. The transmission rod frame 931 is rotatably connected to the push rod 22, when the push rod 22 is pressed to rotate relative to the rear leg 12, the push rod 22 and the connecting rod 21 rotate together, the transmission rod frame 931 rotates along with the push rod 22 and presses the transmission rod 932 to move downwards, the upper end of the transmission rod 932 rotates relative to the push rod 22 and draws close to the seat assembly 91 when the push rod 22 rotates relative to the rear leg 12, the lower end of the transmission rod 932 moves downwards to push the seat assembly 91, and the transmission rod 932, the push rod 22 and the transmission rod frame 931 are matched with the push rod 22 to push the seat assembly 91 to enable the seat assembly 91 to rotate relative to the push rod 22 and draw close to the rear leg 12.

As shown in fig. 14, of course, the connecting rod 21 of the carrier is further provided with a push rod frame 23 connected to the inner side of the push rod 22, the transmission assembly 93 includes a transmission rod frame 931 rotatably connected to the push rod frame 23, a transmission rod 932 is provided between the transmission rod frame 931 and the seat assembly 91, the transmission rod frame 931 rotates downward to push the seat assembly 91 to rotate when the stroller frame is folded, the upper end of the transmission rod 932 is rotatably connected to the lower end of the transmission rod frame 931, and the lower end of the transmission rod frame 931 is rotatably connected to the rear side of the seat assembly 91. When the push rod 22 rotates relative to the rear leg 12, the push rod frame 23 rotates along with the connecting rod 21, the transmission rod frame 931 rotates along with the push rod frame 23 and pushes the transmission rod 932 to move downwards, the upper end of the transmission rod 932 rotates relative to the push rod frame 23 and draws close to the seat assembly 91 when the push rod 22 rotates relative to the rear leg 12, the lower end of the transmission rod 932 moves downwards to push the seat assembly 91, and the transmission rod 932, the push rod frame 23 and the transmission rod frame 931 are matched with each other to push the seat assembly 91 to enable the seat assembly 91 to rotate relative to the push rod 22 and draw close to the rear leg 12.

Claims (10)

1. The push rod reversing device of the carrier is characterized by comprising a bottom support frame (1), wherein the bottom support frame (1) comprises front legs (11) and rear legs (12) connected with the front legs (11), the lower ends of the front legs (11) are connected with front wheel assemblies (3), the lower ends of the rear legs (12) are connected with rear wheel assemblies (4), front wheel orienting assemblies (5) capable of locking the advancing direction of the front wheel assemblies (3) are arranged between the front wheel assemblies (3) and the front legs (11), rear wheel orienting assemblies (6) capable of locking the advancing direction of the rear wheel assemblies (4) are arranged between the rear wheel assemblies (4) and the rear legs (12), the upper end of the bottom support frame (1) can be further rotatably connected with a push rod (22), a reversing locking assembly (7) capable of locking the position of the push rod (22) after the push rod (22) is reversed is arranged between the push rod (22) and the bottom support frame (1), push rod (22) and bottom sprag frame (1) between be equipped with front wheel unlocking piece (81) and rear wheel unlocking piece (82), front wheel unlocking piece (81) link to each other with directional subassembly (5) of front wheel, rear wheel unlocking piece (82) link to each other with directional subassembly (6) of rear wheel, the position that front wheel unlocking piece (81) stayed include front wheel lock location and front wheel release position, when front wheel unlocking piece (81) is located the front wheel lock location, directional subassembly (5) of front wheel lock, when front wheel unlocking piece (81) is located front wheel release position, directional subassembly (5) unblock of front wheel, and the position that rear wheel unlocking piece (82) stayed include rear wheel lock location and rear wheel release position, when rear wheel unlocking piece (82) is located the rear wheel lock location, directional subassembly (6) of rear wheel lock, when rear wheel unlocking piece (82) is located rear wheel release position, rear wheel orientation subassembly (6) unblock, push rod (22) and bottom sprag frame (1) between still be equipped with and follow push rod (22) pivoted drive division (75), when push rod (22) rotate forward, drive division (75) promote front wheel unlocking piece (81) and remove to front wheel lock location and make rear wheel unlocking piece (82) remove to rear wheel release position, when push rod (22) rotate backward, drive division (75) promote rear wheel unlocking piece (82) and remove to rear wheel lock location and make front wheel unlocking piece (81) remove to front wheel release position.

2. The push rod reverser according to claim 1, wherein: the driving part (75) comprises an arc-shaped driving sheet (751) deviating from the rotation center (A) of the push rod (22), the arc-shaped driving sheet (751) is provided with a first extrados surface (752) and a second extrados surface (753), when the push rod (22) rotates forwards, the first extrados surface (752) releases the rear wheel unlocking piece (82) so that the rear wheel unlocking piece (82) can move from the rear wheel locking position to the rear wheel releasing position, and the second extrados surface (753) presses the front wheel unlocking piece (81) so that the front wheel unlocking piece (81) moves from the front wheel releasing position to the front wheel locking position; when the push rod (22) rotates backwards, the first extrados surface (752) presses the rear wheel unlocking piece (82) to enable the rear wheel unlocking piece (82) to move from a rear wheel releasing position to a rear wheel locking position, and the second extrados surface (753) releases the front wheel unlocking piece (81) to enable the front wheel unlocking piece (81) to move from the front wheel locking position to the front wheel releasing position.

3. The push rod reverser according to claim 2, wherein: the front wheel unlocking piece (81) comprises a front sliding block (811), a first inclined sliding surface (812) capable of being pressed by a first extrados (752) is arranged on the front sliding block (811), the rear wheel unlocking piece (82) comprises a rear sliding block (821), and a second inclined sliding surface (822) capable of being pressed by the first extrados (752) is arranged on the rear sliding block (821).

4. The push rod reverser according to claim 1, wherein: the front wheel assembly (3) comprises a front wheel support (31) movably connected to the lower end of a front leg (11) and a front wheel (32) connected to the front wheel support (31), the front wheel orientation assembly (5) comprises a first positioning piece (51) which is connected to the inside of the front leg (11) and can slide up and down relative to the front leg (11), a first clamping groove (311) which can enable the first positioning piece (51) to be inserted when the first positioning piece slides down is formed in the front wheel support (31), a third elastic piece (53) which can enable the first positioning piece (51) and the first clamping groove (311) to be kept in a clamping state is further arranged between the first positioning piece (51) and the front wheel unlocking piece (81), the first positioning piece (51) and the front wheel unlocking piece (81) are connected with each other through a second inhaul cable (52), and a front wheel unlocking piece (81) which can lift up the front wheel unlocking piece (81) upwards and enable the first positioning piece (51) to be lifted up from the first clamping groove (311) is further arranged between the front wheel unlocking piece (81) and the bottom support frame (1) The first elastic piece (83) is separated from the groove (311), and the elastic force of the first elastic piece (83) is greater than that of the third elastic piece (53);

rear wheel subassembly (4) including swing joint rear wheel support (41) and the rear wheel (42) of being connected on rear wheel support (41) of rear leg (12) lower extreme, rear wheel orientation subassembly (6) including locating rear leg (12) in and can be relative rear leg (12) gliding second setting element (61) from top to bottom, rear wheel support (41) on be equipped with and supply to decide second setting element (61) male second block groove (411) when gliding downwards, second setting element (61) and rear leg (12) between still be equipped with and enable second setting element (61) and second block groove (411) fourth elastic component (63) that keep the kayser state, second setting element (61) and rear wheel unblock piece (82) between pass through third cable (62) interconnect, rear wheel unblock piece (82) and bottom sprag frame (1) between still be equipped with and can make second block setting element (61) unblock piece (81) and make second block setting element (61) follow second block piece (81) and jack And a second elastic member (84) from which the slot (411) is disengaged, wherein the elastic force of the second elastic member (84) is greater than that of the fourth elastic member (63).

5. The push rod reverser according to claim 1, wherein: the reversing locking assembly (7) comprises a left shell (71) arranged on the bottom support frame (1) and a right shell (72) arranged on the push rod (22), spline grooves (73) are formed in the left shell (71) and the right shell (72), an accommodating cavity (74) is defined by the left shell (71) and the right shell (72), splines (79) which can transversely move in the accommodating cavity (74) and can be clamped with the spline grooves (73) on the left shell (71) and the right shell (72) at the same time are arranged in the accommodating cavity, a driving part (75) is arranged on the splines (79), a sliding sleeve (76) capable of sliding relative to the push rod (22) is arranged on the push rod (22), a first pulling cable (77) capable of connecting the sliding sleeve (76) and pulling the splines (79) to be separated from the spline grooves (73) on the left shell (71) when the sliding sleeve (76) slides, a reset piece (78) capable of driving the spline (79) to reset is arranged between the spline (79) and the right shell (72).

6. The push rod reverser according to claim 1, wherein: the front legs (11) are rotatably connected with the rear legs (12), the rear legs (12) are provided with connecting rods (21) rotatably connected with the rear legs, and the push rods (22) are rotatably connected onto the connecting rods (21).

7. A vehicle, comprising: a push rod reverser according to any one of claims 1 to 6.

8. The vehicle of claim 7, wherein: preceding leg (11) rotate with back leg (12) and be connected, just back leg (12) on be equipped with rather than rotate the connecting rod (21) of being connected, push rod (22) rotate and connect on connecting rod (21), delivery vehicle still including rotate seat subassembly (91) of connecting on connecting rod (21), seat subassembly (91) and back leg (12) between still be equipped with can rotate gangbar (16) of being connected with the two, back leg (12) on still rotate and be connected with folding traction assembly (92), and folding traction assembly (92) one end rotate with preceding leg (11) and be connected, the other end rotates with seat subassembly (91) to be connected and can pull seat subassembly (91) and preceding leg (11) to draw when making infant's carriage folding to fold to back leg (12).

9. The vehicle of claim 8, wherein: the folding traction assembly (92) comprises a first traction rod (13), a second traction rod (14) and a third traction rod (15), the front end of the first traction rod (13) is rotatably connected to the front leg (11), the front end of the second traction rod (14) is rotatably connected with the rear end of the first traction rod (13), the rear end of the second traction rod (14) is rotatably connected to the rear leg (12), the lower end of the third traction rod (15) is rotatably connected to the second traction rod (14), the upper end of the third traction rod (15) is rotatably connected to the seat assembly (91), and a transmission assembly (93) rotatably connected with the push rod (22) and the seat assembly (91) is further arranged between the push rod (22) and the seat assembly (91).

10. The vehicle of claim 9, wherein: the transmission assembly (93) comprises a transmission rod frame (931) which is rotatably connected to the push rod (22), a transmission rod (932) which is arranged between the transmission rod frame (931) and the seat assembly (91) and can drive the seat assembly (91) to rotate when the baby carriage frame is folded, the transmission rod frame (931) rotates downwards, the upper end of the transmission rod (932) is rotatably connected to the lower end of the transmission rod frame (931), and the lower end of the transmission rod frame (931) is rotatably connected to the rear side of the seat assembly (91);

or, connecting rod (21) on still be equipped with and be connected with push rod frame (23) that are located push rod (22) inboard, transmission subassembly (93) including rotate connect in transmission rod frame (931) on push rod frame (23), transmission rod frame (931) and seat subassembly (91) between be equipped with when the baby carriage frame is folded transmission rod frame (931) and rotate downwards and promote seat subassembly (91) pivoted transfer line (932), the upper end of transfer line (932) rotate and connect in the lower extreme of transmission rod frame (931), the lower extreme of transmission rod frame (931) rotate and connect in the rear side of seat subassembly (91).

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