CN214215894U

CN214215894U - Folding formula children handcart that draws in expandes self-locking mechanism

Info

Publication number: CN214215894U
Application number: CN202022800067.7U
Authority: CN
Inventors: 杨军
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-09-17
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses a folding formula of drawing in children's handcart expandes self-locking mechanism in, its technical scheme main points are: the brake device comprises an orientation wheel and a self-locking connecting piece, wherein a brake piece is fixedly arranged on the side wall of the orientation wheel, and the upper end of the brake piece is fixedly connected with a first connecting port; utilize gear drive effort to produce and loosen, the auto-lock process, reach required function and effect, the working process is safe, reliable, auto-lock grabs the resultant force firmly after the automobile body expandes, there is not the problem of rocking, the tee bend connecting piece can be fast with the head rod, the frame is formed in third connecting rod and fourth connecting rod connection, first connecting port and second connector can be fast with the directional wheel, footboard and universal wheel and the frame attach of constituteing, the position of seat frame can be fixed fast to tee bend connecting piece and fourth connecting rod, the auto-lock connecting piece can the high-speed joint second connecting rod, fourth connecting rod and fifth connecting rod, connect through the fifth connecting rod and push away the handle, the equipment is simple, it is quick.

Description

Folding formula children handcart that draws in expandes self-locking mechanism

Technical Field

The utility model relates to a children's shallow field, in particular to folding formula children's handcart that draws in expandes self-locking mechanism.

Background

The baby stroller is a transportation tool for children, and can be moved only by assisting in pushing or pulling by people, the baby stroller generally comprises a sunshade, a seat cushion, a sleeping basket and a haze-proof cover, the service life is generally three to five years, the age of a baby is considered during purchasing, and the functions of the baby stroller are upgraded to sleeping, dining, playing and playing.

The self-locking mechanism has certain defect after the folding foldable child trolley is unfolded in the current market, the self-locking mechanism is not firmly connected and externally fixed after self-locking, the problem of loosening and shaking easily occurs, and the assembly process is difficult to operate.

SUMMERY OF THE UTILITY MODEL

To the problem mentioned in the background art, the utility model aims at providing a folding formula children handcart that draws in expandes self-locking mechanism to solve the problem mentioned in the background art.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a folding foldable child stroller unfolding self-locking mechanism comprises a directional wheel and a self-locking connecting piece, wherein a brake piece is fixedly installed on the side wall of the directional wheel, the upper end of the brake piece is fixedly connected with a first connecting port, a first connecting rod is inserted into the first connecting port, a second connecting rod is rotatably connected to the side wall of the first connecting rod, one end of the first connecting rod is fixedly connected with a three-way connecting piece, the lower end of the three-way connecting piece is inserted with a third connecting rod, the lower end of the third connecting rod is inserted with a pedal, the lower end of the pedal is fixedly connected with a second connecting port, a universal wheel is inserted into the second connecting port, a seat frame is fixedly connected to the side wall of the three-way connecting piece, the side wall of the seat frame is rotatably connected with the second connecting rod, a fourth connecting rod is inserted into the upper end of the three-way connecting piece, and a connector is fixedly installed at the upper end of the fourth connecting rod, the lateral wall fixed mounting of auto-lock connecting piece has first connecting piece, the connector rotates to be connected in the inside of first connecting piece, the lower extreme fixed mounting of auto-lock connecting piece has last fixed cover, the inside fixed mounting of going up fixed cover has the spring, the one end fixedly connected with pulling force driving medium of spring, the upper end fixed mounting of second connecting rod has lower fixed cover, lower fixed cover and last fixed cover joint, the inside fixed mounting of lower fixed cover has intermediate gear, intermediate gear is connected with the transmission of pulling force drive wheel, the upper end of auto-lock connecting piece is pegged graft and is had the fifth connecting rod, the upper end fixedly connected with of fifth connecting rod pushes away the handle.

By adopting the technical scheme, the first connecting rod, the third connecting rod and the fourth connecting rod can be quickly connected through the three-way connecting piece to form a frame, the orientation wheel, the pedal and the universal wheel can be quickly connected with the formed frame through the first connecting port and the second connecting port, the position of the seat frame can be quickly fixed through the three-way connecting piece and the fourth connecting rod, the second connecting rod and the fourth connecting rod can be quickly connected through the self-locking connecting piece, so that the fifth connecting rod and the push handle are connected with the formed frame, the basic assembly is completed, the operation is simple and quick, the middle gear rotates through rotating the lower fixing cover, the tension driving wheel is driven through the rotation of the middle gear, the tension driving wheel is locked in the upper fixing cover, the spring fastening is realized, the loosening and self-locking processes are generated by the gear transmission acting force, and the required functions and effects are achieved, the working process is safe and reliable, the self-locking grabbing force is firm after the vehicle body is unfolded, and the problem of shaking is avoided.

Preferably, the side wall of the brake piece is in transmission connection with a rear foot tube, and the outer wall of the rear foot tube is fixedly provided with a brake plate.

By adopting the technical scheme, the rear foot tube is rotated by treading the brake plate, so that the brake piece performs brake operation.

Preferably, the side wall of the first connecting rod is fixedly connected with a reinforcing rod, and a supporting rod is fixedly installed inside the seat frame.

Through adopting above-mentioned technical scheme, can stabilize the position of head rod through the stiffener, can support children through the bracing piece and sit the bed.

Preferably, the lower end of the supporting rod is fixedly connected with a sliding sleeve, and the sliding sleeve is connected with a sliding rod in a sliding manner.

Through adopting above-mentioned technical scheme, through litter sliding connection in the inside of sliding sleeve for can make things convenient for children to place the shank after the litter is pulled out.

Preferably, the side wall of the first connecting rod is rotatably connected with a connecting flat iron, and the connecting flat iron is respectively rotatably connected with the third connecting rod and the fourth connecting rod.

Through adopting above-mentioned technical scheme, can strengthen the connection each other of head rod, third connecting rod and fourth connecting rod through connecting the band iron.

Preferably, a second connecting piece is fixedly mounted on the side wall of the self-locking connecting piece, a special-shaped gear is rotatably connected inside the second connecting piece, a first ceiling support is fixedly connected to the outer wall of the special-shaped gear, a fourth connecting piece is fixedly connected to the side wall of the self-locking connecting piece, and a second ceiling support is inserted inside the fourth connecting piece.

Through adopting above-mentioned technical scheme, can be easy to assemble sunshade, the roof that hides rain through first ceiling support and second ceiling support, provide the protection for children.

Preferably, the side wall of the fourth connecting rod is slidably connected with a third connecting piece, one end of the third connecting piece is rotatably connected with the frame, and the other end of the third connecting piece is fixedly connected with a handrail.

Through adopting above-mentioned technical scheme, the handrail through third connecting piece other end fixed connection can make things convenient for children to hold up to prevent that children from dropping.

To sum up, the utility model discloses mainly have following beneficial effect:

firstly, the lower fixing cover is rotated to enable the intermediate gear to rotate, the intermediate gear rotates to drive the tension transmission wheel, so that the tension transmission wheel is locked in the upper fixing cover and is fastened through the spring, the loosening and self-locking processes are generated by utilizing the gear transmission acting force, the required functions and effects are achieved, the working process is safe and reliable, the self-locking grabbing force is firm after the vehicle body is unfolded, and the problem of shaking is avoided;

second, can be fast with the head rod through the tee junction spare, third connecting rod and fourth connecting rod are connected, thereby constitute the frame, can be fast with the directional wheel through first connector and second connector, footboard and universal wheel and the frame attach who constitutes, can fix the position of sitting the frame fast through tee junction spare and fourth connecting rod, can high-speed joint second connecting rod and fourth connecting rod through the auto-lock connecting piece, thereby make the fifth connecting rod, push away the frame attach who constitutes with the group, thereby accomplish basic equipment, and is simple, and is fast.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of the assembly structure of the present invention;

fig. 3 is a schematic view of the self-locking connecting member of the present invention.

Reference numerals: 1. a directional wheel; 2. a braking member; 201. a first connection port; 3. a rear foot tube; 4. a brake plate; 5. a first connecting rod; 6. a reinforcing bar; 7. a second connecting rod; 8. a tee joint connector; 9. a third connecting rod; 10. a pedal; 11. a second connection port; 12. a universal wheel; 13. connecting flat irons; 14. a seat frame; 15. a support bar; 16. a sliding sleeve; 17. a slide rod; 18. a fourth connecting rod; 181. a connector; 19. a self-locking connector; 20. a first connecting member; 21. a second connecting member; 22. a special-shaped gear; 23. a first ceiling mount; 24. an upper fixing cover; 241. a spring; 242. a tension transmission wheel; 25. a lower fixing cover; 251. an intermediate gear; 26. a fifth connecting rod; 27. a push handle; 28. a third connecting member; 29. a handrail; 30. a fourth connecting member; 31. a second ceiling mount.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, a folding foldable stroller unfolding self-locking mechanism comprises a directional wheel 1 and a self-locking connecting piece 19, wherein a brake piece 2 is fixedly mounted on a side wall of the directional wheel 1, a first connecting port 201 is fixedly connected to an upper end of the brake piece 2, a first connecting rod 5 is inserted into the first connecting port 201, a second connecting rod 7 is rotatably connected to a side wall of the first connecting rod 5, a three-way connecting piece 8 is fixedly connected to one end of the first connecting rod 5, a third connecting rod 9 is inserted into a lower end of the three-way connecting piece 8, a pedal 10 is inserted into a lower end of the third connecting rod 9, a second connecting port 11 is fixedly connected to a lower end of the pedal 10, a universal wheel 12 is inserted into the second connecting port 11, a seat frame 14 is fixedly connected to a side wall of the three-way connecting piece 8, and a side wall of the seat frame 14 is rotatably connected to the second connecting rod 7, the upper end of the three-way connecting piece 8 is inserted with a fourth connecting rod 18, the upper end of the fourth connecting rod 18 is fixedly provided with a connecting head 181, the side wall of the self-locking connecting piece 19 is fixedly provided with a first connecting piece 20, the connecting head 181 is rotatably connected inside the first connecting piece 20, the lower end of the self-locking connecting piece 19 is fixedly provided with an upper fixing cover 24, the inside of the upper fixing cover 24 is fixedly provided with a spring 241, one end of the spring 241 is fixedly connected with a tension transmission member, the upper end of the second connecting rod 7 is fixedly provided with a lower fixing cover 25, the lower fixing cover 25 is clamped with the upper fixing cover 24, a middle gear 251 is fixedly arranged in the lower fixing cover 25, the intermediate gear 251 is in transmission connection with the tension transmission wheel 242, the upper end of the self-locking connecting piece 19 is inserted with a fifth connecting rod 26, and the upper end of the fifth connecting rod 26 is fixedly connected with a push handle 27; can be fast with the head rod 5 through tee junction spare 8, third connecting rod 9 and fourth connecting rod 18 are connected, thereby constitute the frame, can be fast with directional wheel 1 through first connector 201 and second connector 11, footboard 10 and universal wheel 12 and the frame joint of constituteing, can fix the position of seat 14 fast through tee junction spare 8 and fourth connecting rod 18, can fast connect second connecting rod 7 and fourth connecting rod 18 through auto-lock connecting piece 19, thereby make fifth connecting rod 26, push away 27 and the frame joint of constitution, thereby accomplish basic equipment, 251 is simple, it is quick, and make the intermediate gear rotate through rotating down fixed cover 25, rotate through intermediate gear 251 and drive the pulling force drive wheel 242, thereby make the pulling force drive wheel 242 lock in last fixed cover 24, and fasten through spring 241.

Referring to fig. 2, for a more practical purpose of the present invention; the side wall of the brake piece 2 is in transmission connection with a rear foot tube 3, the outer wall of the rear foot tube 3 is fixedly provided with a brake plate 4, the side wall of the first connecting rod 5 is fixedly connected with a reinforcing rod 6, the inside of the seat frame 14 is fixedly provided with a supporting rod 15, the lower end of the supporting rod 15 is fixedly connected with a sliding sleeve 16, the inside of the sliding sleeve 16 is in sliding connection with a sliding rod 17, the side wall of the first connecting rod 5 is in rotating connection with a connecting flat iron 13, the connecting flat iron 13 is respectively in rotating connection with a third connecting rod 9 and a fourth connecting rod 18, the side wall of the fourth connecting rod 18 is in sliding connection with a third connecting piece 28, one end of the third connecting piece 28 is in rotating connection with the frame, and the other end of the third connecting piece 28 is fixedly connected with a handrail 29; can drive back foot pipe 3 through trampling brake block 4 and rotate, it makes directional wheel 1 stall to drive brake piece 2 through the rotation of back foot pipe 3, thereby make the automobile body stop motion, the position of head rod 5 can stabilize through stiffener 6, childhood country's bracing piece 15 can support children and sit the crouching, through the litter 17 of pulling out 16 inside pegs graft of sliding sleeve, can place children's shank, can strengthen head rod 5 through connecting band iron 13, the connection between third connecting rod 9 and the fourth connecting rod 18, thereby make automobile body frame more firm.

2-3, for the purpose of facilitating ceiling installation; a second connecting piece 21 is fixedly installed on the side wall of the self-locking connecting piece 19, a special-shaped gear 22 is rotatably connected inside the second connecting piece 21, a first ceiling support 23 is fixedly connected to the outer wall of the special-shaped gear 22, a fourth connecting piece 30 is fixedly connected to the side wall of the self-locking connecting piece 19, and a second ceiling support 31 is inserted inside the fourth connecting piece 30; the first and

second ceiling brackets

23 and 31 facilitate the installation of the ceiling to shade the child from the sun and rain, and are rotatably coupled inside the second coupling member 21 by the contour gear 22 so that the first ceiling bracket 23 can be moved or stopped.

The use principle and the advantages are as follows: when the baby stroller needs to be installed, the first connecting rod 5, the third connecting rod 9 and the fourth connecting rod 18 are connected through the three-way connecting piece 8, then one end of the first connecting rod 5 is inserted into the first connecting port 201, so that the brake piece 2 is connected with the directional wheel 1, the pedal 10 is connected through the third connecting rod 9, the universal wheel 12 is connected through the second connecting port 11 fixedly installed at the lower end of the pedal 10, then the second connecting rod 7 is rotatably connected to the side wall of the first connecting rod 5, the first connecting piece 20 fixedly installed through the outer wall of the self-locking connecting piece 19 is rotatably connected with the connecting head 181, so that the fourth connecting rod 18 is connected with the self-locking connecting piece 19, the lower fixing cover 25 is clamped with the upper fixing cover 24, so that the second connecting rod 7 is connected with the self-locking connecting piece 19, the fifth connecting rod 26 is inserted into the upper end of the self-locking connecting piece 19, and the push handle 27 can be connected through the fifth connecting rod 26, then the flat iron 13 is installed and connected, so that the connection among the first connecting rod 5, the third connecting rod 9 and the fourth connecting rod 18 is more stable, the seat frame 14 is rotated on the side wall of the three-way connecting piece 8 and the second connecting rod 7, so as to fix the position of the seat frame 14, so that the installation of the baby stroller is simpler and more convenient, the baby stroller can be more stable through the reinforcing rod 6, the child can be supported to sit and lie on the upper end of the seat frame 14 through the supporting rod 15, the slide rod 17 can be conveniently drawn out to place the leg of the child by fixedly installing the slide sleeve 16 on the lower end of the supporting rod 15, so that the child is more comfortable, the handrail 29 can be rotated on the side wall of the seat frame 14 through the third connecting piece 28 by slidably connecting the side wall of the third connecting piece 28, so as to be convenient for the child to hold, one end of the ceiling can be installed through the second ceiling support 31 inserted inside the fourth connecting piece 30, the other end of the ceiling can be pressed through the second ceiling support 31 and is rotatably connected inside the second connecting piece 21 through the special-shaped gear 22, so that the first ceiling support 23 can be unfolded, stopped or retracted, and is convenient for children to shade sun and rain, the rear foot tube 3 is driven to rotate by treading the brake plate 4 fixedly installed on the outer wall of the rear foot tube 3, so that the brake piece 2 plays a braking role on the directional wheel 1, the middle gear 251 is driven to rotate through the lower fixing cover 25, the tension transmission wheel 242 is driven to rotate through the rotation of the middle gear 251, so that the tension transmission wheel 242 is self-locked inside the upper fixing cover 24 and is fastened through the spring 241, and loosening and self-locking processes are generated by utilizing gear transmission acting force, the working process is safe and reliable, the self-locking and grabbing force is firm after the vehicle body is unfolded, and the pollution shakes.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a folding formula children's handcart that draws in expandes self-locking mechanism, includes directional wheel (1) and auto-lock connecting piece (19), its characterized in that: the side wall of the directional wheel (1) is fixedly provided with a brake piece (2), the upper end of the brake piece (2) is fixedly connected with a first connecting port (201), a first connecting rod (5) is inserted into the first connecting port (201), the side wall of the first connecting rod (5) is rotatably connected with a second connecting rod (7), one end of the first connecting rod (5) is fixedly connected with a three-way connecting piece (8), the lower end of the three-way connecting piece (8) is inserted with a third connecting rod (9), the lower end of the third connecting rod (9) is inserted with a pedal (10), the lower end of the pedal (10) is fixedly connected with a second connecting port (11), the inside of the second connecting port (11) is inserted with a universal wheel (12), the side wall of the three-way connecting piece (8) is fixedly connected with a seat frame (14), and the side wall of the seat frame (14) is rotatably connected with the second connecting rod (7), a fourth connecting rod (18) is inserted into the upper end of the three-way connecting piece (8), a connector (181) is fixedly mounted at the upper end of the fourth connecting rod (18), a first connecting piece (20) is fixedly mounted on the side wall of the self-locking connecting piece (19), the connector (181) is rotatably connected inside the first connecting piece (20), an upper fixing cover (24) is fixedly mounted at the lower end of the self-locking connecting piece (19), a spring (241) is fixedly mounted inside the upper fixing cover (24), one end of the spring (241) is fixedly connected with a tension transmission piece, a lower fixing cover (25) is fixedly mounted at the upper end of the second connecting rod (7), the lower fixing cover (25) is clamped with the upper fixing cover (24), an intermediate gear (251) is fixedly mounted inside the lower fixing cover (25), and the intermediate gear (251) is in transmission connection with the tension transmission wheel (242), the upper end of the self-locking connecting piece (19) is inserted with a fifth connecting rod (26), and the upper end of the fifth connecting rod (26) is fixedly connected with a push handle (27).

2. The self-locking mechanism for unfolding a foldable and collapsible stroller according to claim 1, further comprising: the side wall transmission of brake spare (2) is connected with back foot pipe (3), the outer wall fixed mounting of back foot pipe (3) has brake block (4).

3. The self-locking mechanism for unfolding a foldable and collapsible stroller according to claim 1, further comprising: the side wall of the first connecting rod (5) is fixedly connected with a reinforcing rod (6), and a supporting rod (15) is fixedly mounted inside the seat frame (14).

4. The self-locking mechanism for unfolding a foldable and collapsible stroller according to claim 3, further comprising: the lower end of the supporting rod (15) is fixedly connected with a sliding sleeve (16), and a sliding rod (17) is connected inside the sliding sleeve (16) in a sliding mode.

5. The self-locking mechanism for unfolding a foldable and collapsible stroller according to claim 1, further comprising: the side wall of the first connecting rod (5) is rotatably connected with a connecting flat iron (13), and the connecting flat iron (13) is rotatably connected with a third connecting rod (9) and a fourth connecting rod (18) respectively.

6. The self-locking mechanism for unfolding a foldable and collapsible stroller according to claim 1, further comprising: the side wall fixed mounting of auto-lock connecting piece (19) has second connecting piece (21), the inside rotation of second connecting piece (21) is connected with special-shaped gear (22), the first ceiling support (23) of outer wall fixedly connected with of special-shaped gear (22), the side wall fixedly connected with fourth connecting piece (30) of auto-lock connecting piece (19), second ceiling support (31) is pegged graft in the inside of fourth connecting piece (30).

7. The self-locking mechanism for unfolding a foldable and collapsible stroller according to claim 1, further comprising: the side wall of the fourth connecting rod (18) is connected with a third connecting piece (28) in a sliding mode, one end of the third connecting piece (28) is connected with the frame in a rotating mode, and the other end of the third connecting piece (28) is fixedly connected with a handrail (29).