CN211186207U - Stair climbing type children pull rod bag with GPS positioning function - Google Patents

Abstract

The utility model discloses a but stair formula children pull rod package climbs with GPS locate function, including inclusion, chassis, solar panel and first fixed block, the fixed cover of left side fixedly connected with of inclusion, the inside of solid fixed cylinder is provided with the montant, the chassis is located the lower extreme of solid fixed cylinder, the connecting plate is installed to the below of chassis, the equal welded connection in both sides has the second gyro wheel around the left end of running-board, solar panel inlays the upper end that sets up at the inclusion, the battery is located the inside of solid fixed box, GPS positioning mechanism is installed to the rear side of battery, the rear side fixed mounting of inclusion has first braces, the inside of first braces is inlayed and is installed first permanent magnetism piece, and first permanent magnetism piece is connected with second permanent magnetism piece magnetism. This but stair formula children pull rod package climbs with GPS locate function conveniently scrambles stair, and has GPS locate function to enable children to carry voluntarily, the accomodating of the braces of being convenient for moreover.

Description

Stair climbing type children pull rod bag with GPS positioning function

Technical Field

The utility model relates to a children's pull rod package correlation technique field specifically is a but stair-climbing formula children's pull rod package with GPS locate function.

Background

Children's draw-bar bag is a storage tool that children's trip was used commonly for required articles for use when deposit children's trip, along with people's improvement of living standard, also improves gradually children's draw-bar bag's requirement for children's draw-bar bag more be convenient for use, but current children's draw-bar bag still has certain defect, for example:

1. the common children pull rod bag is inconvenient for climbing stairs when in use, and a user carrying the children pull rod bag causes difficulty in climbing the stairs;

2. the common children pull rod bag does not have the GPS positioning function, so that the children are inconvenient to be nursed by parents when the children are outdoors and are inconvenient to find by lost children;

3. the existing children draw-bar bag is difficult to pull, and the children do not want to carry the draw-bar bag by themselves and cannot arouse the interest of the children;

4. although the child draw-bar bag on the market can be disassembled, the carrying straps are not convenient to store, and the pulling of the carrying straps is easily influenced.

An object of the utility model is to provide a but stair formula children's pull rod package climbs with GPS locate function to solve the problem of children's pull rod package on the existing market that above-mentioned background art provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but stair formula children's pull rod package climbs with GPS locate function to solve most children's pull rod package that proposes in the above-mentioned background art and be not convenient for climb the building, and do not have GPS locate function, and can not make children voluntarily carry, the problem that the braces of being not convenient for was accomodate moreover.

In order to achieve the above object, the utility model provides a following technical scheme: a climbing type children pull rod bag with a GPS positioning function comprises a bag body, an underframe, a solar panel and a first fixed block, wherein the left side of the bag body is fixedly connected with a fixed sleeve, the inside of the fixed sleeve is connected with a fixed cylinder in a penetrating manner, a vertical rod is arranged inside the fixed cylinder, the upper end of the vertical rod is connected with a handle in a welding manner, a connecting block is nested outside the vertical rod, a limiting block is arranged at the lower end of the vertical rod and is connected with the vertical rod through a connecting spring, the underframe is positioned at the lower end of the fixed cylinder, a driving mechanism is installed at the left end of the underframe, and a first roller is fixedly installed at the right end of the;

a connecting plate is arranged below the underframe, the lower end of the connecting plate is welded with the pedal, and the front side and the rear side of the left end of the pedal are both welded with second rollers;

the solar panel is embedded in the upper end of the bag body and electrically connected with the storage battery, the storage battery is positioned in the fixing box, the fixing box is fixedly installed at the upper end in the bag body, the rear side of the storage battery is provided with a GPS (global positioning system) positioning mechanism, the rear side of the bag body is fixedly provided with a first strap, the lower end of the first strap is connected with a second strap, the lower end of the second strap is fixedly connected with the rear side of the bag body, a first permanent magnet is embedded in the first strap and magnetically connected with the second permanent magnet, and the second permanent magnet is embedded in the rear side of the bag body;

the first fixing block is fixedly installed at the right end of the connecting plate, the connecting plate is connected with the bottom frame through the sliding groove, and the second fixing block is fixedly installed at the left end of the sliding groove.

Preferably, the inside of a fixed section of thick bamboo is hollow structure, and the inside width of a fixed section of thick bamboo equals with the outside width in bottom of montant to the montant is extending structure in the inside of a fixed section of thick bamboo.

Preferably, the inner diameter of the upper end of the connecting block is equal to the outer diameter of the lower end of the vertical rod, the inner diameter of the lower end of the connecting block is equal to the outer diameter of the upper end of the fixed cylinder, and the connecting block is connected with the upper end of the fixed cylinder and the lower end of the vertical rod in a threaded connection mode.

Preferably, the outer end of the limiting block is of an arc-shaped structure, the limiting block is of an elastic structure, and the limiting block is connected with the fixed cylinder in a clamping manner.

Preferably, the left end of the underframe and the lower end of the fixed cylinder form an L-shaped structure, and the fixed cylinder is connected with the fixed sleeve in a nested manner.

Preferably, actuating mechanism includes the dead lever, from the driving wheel, the action wheel, the shell, the connecting axle, the fifth wheel, connecting rod and slipmat, dead lever through connection is in the centre of the inside from the driving wheel, the outside meshing from the driving wheel is connected with the action wheel, the outside from driving wheel and action wheel all is provided with the shell, the rear end of shell and the surface fixed connection of chassis, the inside through connection of action wheel has the connecting axle, the one end and the fifth wheel fixed connection of action wheel are kept away from to the connecting axle, connecting rod and dead lever swing joint are passed through to the rear side of fifth wheel, the surface of fifth wheel is.

Preferably, the driving wheel is arranged at an equal angle relative to the center of the driven wheel, the driving wheel and the driven wheel form a transmission structure, the driven wheel is connected with the front side and the rear side of the bottom frame through a fixing rod, and the fixing rod is of a rotating structure on the bottom frame.

Preferably, the outer surface of the non-slip mat is of a concave-convex structure, the non-slip mat is made of rubber materials, the non-slip mat is fixedly connected with the connecting wheels, and the connecting wheels are arranged in one-to-one correspondence with the driving wheels.

Preferably, the pedals are of a sliding structure on the lower surface of the underframe through connecting plates, and the connecting plates are symmetrically arranged about a vertical central axis of the pedals.

Preferably, the first and second straps are symmetrically arranged about a vertical central axis of the bag body, and the first and second straps are magnetically connected to the bag body.

Compared with the prior art, the beneficial effects of the utility model are that: the stair climbing type children pull rod bag with the GPS positioning function is convenient for climbing stairs, has the GPS positioning function, can be carried by children voluntarily, and is convenient for storage of braces;

1. the driving mechanisms are arranged on the front side and the rear side of the underframe, so that the connecting wheels can be sequentially turned to climb the stairs, and the connecting wheels are connected with the driven wheels through the driving wheels, so that the driving wheels and the driven wheels can rotate when the first connecting wheel rolls, the next connecting wheel is driven to rotate, and the like, so that the driving mechanisms are more labor-saving when climbing the stairs;

2. the solar energy conversion bag comprises a bag body, a solar panel, a battery and a GPS positioning mechanism, wherein the GPS positioning mechanism is arranged in the bag body and can be matched with a mobile phone to perform real-time positioning, so that parents can conveniently nurse children, the pull rod bag can be conveniently found when the pull rod bag is lost, and the solar panel is arranged at the upper end of the bag body and can convert solar energy under the action of an inverter, so that the generated electric energy is stored in the battery and can be conveniently supplied for the GPS positioning mechanism;

3. the connecting plate, the pedal plate and the second roller are arranged below the underframe, so that the pedal plate can be pulled out on the smooth ground, a simple scooter mechanism is formed among the pedal plate, the underframe and the vertical rod, and when a child uses the scooter, the whole draw-bar bag can be moved conveniently by sliding the pedal plate, so that the interest of the child in using the draw-bar bag is enhanced, and the child can carry and push the draw-bar bag voluntarily;

4. the first permanent magnets are arranged inside the first strap and the second strap, and the second permanent magnets are arranged at corresponding positions on the bag body, so that when the pull rod bag is pulled, the first strap and the second strap can be limited in position through mutual attraction between the first permanent magnets and the second permanent magnets, and the situation that the first strap and the second strap are too long to influence the pulling of the whole bag body is prevented.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a left side view of the structure of the present invention;

FIG. 4 is a schematic view of the front section structure of the fixing tube connected to the vertical rod of the present invention;

fig. 5 is a schematic view of the connection structure between the vertical bar and the connecting block of the present invention;

fig. 6 is a schematic view of the front sectional structure of the driving mechanism of the present invention;

fig. 7 is a schematic side view of the driving mechanism of the present invention;

FIG. 8 is a schematic view of a side view cross-sectional structure of the connection between the bag body and the solar panel;

fig. 9 is a schematic front sectional view of the connection between the first strap and the bag body;

fig. 10 is a schematic view of a cross-sectional top view of the bottom frame of the present invention;

fig. 11 is an enlarged schematic view of a portion a of fig. 10 according to the present invention;

fig. 12 is a schematic view of the working flow of the present invention.

In the figure: 1. a bag body; 2. fixing a sleeve; 3. a fixed cylinder; 4. a vertical rod; 5. a handle; 6. connecting blocks; 7. a limiting block; 8. a connecting spring; 9. a chassis; 10. a drive mechanism; 1001. fixing the rod; 1002. a driven wheel; 1003. a driving wheel; 1004. a housing; 1005. a connecting shaft; 1006. a connecting wheel; 1007. a connecting rod; 1008. a non-slip mat; 11. a first roller; 12. a connecting plate; 13. a foot pedal; 14. a second roller; 15. a solar panel; 16. a fixing box; 17. a storage battery; 18. a GPS positioning mechanism; 19. a first strap; 20. a second strap; 21. a first permanent magnet; 22. a second permanent magnet; 23. a first fixed block; 24. a chute; 25. and a second fixed block.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-12, the present invention provides a technical solution: a climbing type children pull rod bag with a GPS positioning function comprises a bag body 1, a fixed sleeve 2, a fixed cylinder 3, a vertical rod 4, a handle 5, a connecting block 6, a limiting block 7, a connecting spring 8, an underframe 9, a driving mechanism 10, a first roller 11, a connecting plate 12, a pedal plate 13, a second roller 14, a solar panel 15, a fixed box 16, a storage battery 17, a GPS positioning mechanism 18, a first strap 19, a second strap 20, a first permanent magnet 21, a second permanent magnet 22, a first fixed block 23, a sliding groove 24 and a second fixed block 25, wherein the fixed sleeve 2 is fixedly connected to the left side of the bag body 1, the fixed cylinder 3 is connected to the inside of the fixed sleeve 3 in a penetrating manner, the vertical rod 4 is arranged inside the fixed cylinder 3, the handle 5 is welded to the upper end of the vertical rod 4, the connecting block 6 is nested to the outer side of the vertical rod 4, the limiting block 7 is arranged at the lower end of the vertical rod 4, the chassis 9 is positioned at the lower end of the fixed cylinder 3, the left end of the chassis 9 is provided with a driving mechanism 10, and the right end of the chassis 9 is fixedly provided with a first roller 11;

a connecting plate 12 is arranged below the underframe 9, the lower end of the connecting plate 12 is welded with a pedal 13, and the front side and the rear side of the left end of the pedal 13 are both welded with second rollers 14;

the solar panel 15 is embedded in the upper end of the bag body 1, the solar panel 15 is electrically connected with the storage battery 17, the storage battery 17 is located inside the fixing box 16, the fixing box 16 is fixedly installed at the upper end inside the bag body 1, the GPS positioning mechanism 18 is installed on the rear side of the storage battery 17, the first strap 19 is fixedly installed on the rear side of the bag body 1, the lower end of the first strap 19 is connected with the second strap 20, the lower end of the second strap 20 is fixedly connected with the rear side of the bag body 1, the first permanent magnet 21 is embedded in the first strap 19, the first permanent magnet 21 is magnetically connected with the second permanent magnet 22, and the second permanent magnet 22 is embedded in the rear side of the bag body 1;

the first fixing block 23 is fixedly installed at the right end of the connecting plate 12, the connecting plate 12 is connected with the bottom frame 9 through a sliding groove 24, and a second fixing block 25 is fixedly installed at the left end of the sliding groove 24.

As shown in fig. 1, the left end of the bottom frame 9 and the lower end of the fixed cylinder 3 form an L-shaped structure, the fixed cylinder 3 and the fixed sleeve 2 are connected in a nested manner, so as to be convenient for supporting and disassembling the bag body 1, the pedals 13 are in a sliding structure on the lower surface of the bottom frame 9 through the connecting plates 12, and the connecting plates 12 are symmetrically arranged about the vertical central axis of the pedals 13, so as to be convenient for pulling out and accommodating the pedals 13;

as shown in fig. 4 and 5, the inside of the fixed cylinder 3 is a hollow structure, the inside width of the fixed cylinder 3 is equal to the outside width of the bottom end of the vertical rod 4, and the vertical rod 4 is a telescopic structure inside the fixed cylinder 3, so that the vertical rod 4 can be conveniently pulled out, and the whole trolley bag can be conveniently pulled;

as shown in fig. 4 and 5, the inner diameter of the upper end of the connecting block 6 is equal to the outer diameter of the lower end of the vertical rod 4, the inner diameter of the lower end of the connecting block 6 is equal to the outer diameter of the upper end of the fixed cylinder 3, the connecting block 6 is connected with the upper end of the fixed cylinder 3 and the lower end of the vertical rod 4 in a threaded connection manner, the connecting block 6 is connected with the fixed cylinder 3 and the vertical rod 4 in a threaded connection manner, so that the position between the fixed cylinder 3 and the vertical rod 4 is limited, the outer end of the limiting block 7 is of an arc-shaped structure, the limiting block 7 is of an elastic structure, the limiting block 7 is connected with the fixed cylinder 3 in a clamping manner, the limiting block 7 can be connected with the fixed cylinder 3 in a clamping manner, and;

as shown in fig. 6 and 7, the driving mechanism 10 includes a fixing rod 1001, a driven wheel 1002, a driving wheel 1003, a housing 1004, a connecting shaft 1005, a connecting wheel 1006, a connecting rod 1007 and a non-slip mat 1008, the fixing rod 1001 is connected to the center of the interior of the driven wheel 1002 in a penetrating manner, the driving wheel 1003 is connected to the outer side of the driven wheel 1002 in a meshing manner, the housings 1004 are respectively arranged on the outer sides of the driven wheel 1002 and the driving wheel 1003, the rear end of the housing 1004 is fixedly connected with the outer surface of the chassis 9, the connecting shaft 1005 is connected to the interior of the driving wheel 1003 in a penetrating manner, one end of the connecting shaft 1005, which is far away from the driving wheel 1003, is fixedly connected with the connecting wheel;

as shown in fig. 6 and 7, the driving wheel 1003 is disposed at an equal angle with respect to the center of the driven wheel 1002, the driving wheel 1003 and the driven wheel 1002 form a transmission structure, the driven wheel 1002 is connected to the front and rear sides of the bottom chassis 9 through a fixing rod 1001, and the fixing rod 1001 is a rotating structure on the bottom chassis 9, and the rotation of the driving wheel 1003 can drive the rotation of the driven wheel 1002, so as to drive the other driving wheels 1003 to rotate;

as shown in fig. 6 and 7, the outer surface of the anti-skid pad 1008 is a concave-convex structure, the anti-skid pad 1008 is made of rubber, the anti-skid pad 1008 is fixedly connected with the connecting wheel 1006, and the connecting wheel 1006 and the driving wheel 1003 are arranged in a one-to-one correspondence manner, so that the friction resistance between the connecting wheel 1006 and the ground can be increased, and the rolling effect of the connecting wheel 1006 is better;

as shown in fig. 9, the first strap 19 and the second strap 20 are symmetrically arranged about the vertical central axis of the bag body 1, and the first strap 19 and the second strap 20 are connected to the bag body 1 in a magnetic manner, so that the first strap 19 and the second strap 20 can be conveniently stored, and the first strap 19 and the second strap 20 can be prevented from influencing the movement of the whole trolley bag.

The working principle is as follows: when the stair climbing type children pull rod bag with the GPS positioning function is used, firstly, the bag body 1 is installed with the underframe 9, the fixed cylinder 3 and the vertical rod 4, when the stair climbing type children pull rod bag is installed, the fixing sleeve 2 connected with the left side of the bag body 1 is nested on the outer side of the fixed cylinder 3 from the upper end of the vertical rod 4, the bottom end of the bag body 1 is placed above the underframe 9, so that the assembly is completed, then the first strap 19 and the second strap 20 are both connected with each other through the magnetism of the first permanent magnet 21 and the second permanent magnet 22, the first strap 19 and the second strap 20 are fixed on the outer side of the bag body 1, so that the first strap 19 and the second strap 20 are prevented from hanging down to influence the pulling of the bag body 1, then the vertical rod 4 is pulled upwards from the inside of the fixed cylinder 3 until the limiting block 7 inside the vertical rod 4 is connected with the fixed cylinder 3 in a clamping manner, the whole pull rod bag can be pulled, under the cooperation of the driving mechanism 10 and the first roller 11, the whole draw-bar bag moves, on a flat road surface, the draw-bar bag can be horizontally pulled, and can also be inclined, and the driving mechanism 10 only lands on the ground, so that the pulling mode of the draw-bar bag is enriched;

when the stair needs to be climbed, the pull rod bag can be integrally inclined, so that the driving mechanism 10 is in contact with the stair steps, 3 driving wheels 1003 are arranged at equal angles relative to the center of each driven wheel 1002, and the connecting wheels 1006 are arranged in one-to-one correspondence with the driving wheels 1003, so that the connecting wheels 1006 can be sequentially turned when the pull rod bag is pulled, the stair climbing effect is achieved, in addition, the connecting wheels 1006 are connected with the driven wheels 1002 through the driving wheels 1003, so that when the 1 st connecting wheel 1006 rotates, the driving wheel 1003 corresponding to the 1 st connecting wheel 1006 can rotate, the driven wheels 1002 meshed with the 1 st driving wheel 1003 are driven, the other 2 driving wheels are driven to rotate, and therefore when the 2 nd connecting wheel 1006 contacts with the stair steps, a certain initial speed is obtained, the 2 nd connecting wheel 1006 is convenient to rotate, and the 2 nd connecting wheel 1006 is easier to climb the steps, when climbing stairs, the whole driving mechanism 10 is more labor-saving and more convenient for children to pull the trolley bag;

when the draw bar bag is pulled on a flat ground, the pedal 13 can be pulled out, so that the pedal 13 slides in the chute 24 in the chassis 9 through the connecting plate 12 until the first fixing block 23 and the second fixing block 25 on the connecting plate 12 are clamped and connected, so that the positions of the connecting plate 12 and the chassis 9 are relatively fixed, then the connecting block 6 is rotated clockwise, so that the connecting block 6 is in threaded connection with the fixed cylinder 3 and the vertical rod 4, so that the positions of the fixed cylinder 3 and the vertical rod 4 are relatively fixed, and the situation that the vertical rod 4 moves downwards in the fixed cylinder 3 when a child presses the vertical rod 4 is prevented, at this time, the pedal 13, the fixed cylinder 3, the vertical rod 4 and the chassis 9 form a simple scooter structure, so that the child can step on the pedal 13 with the foot and drive the whole draw bar bag with the foot, so that the whole draw bar bag slides under the combined action of the driving mechanism 10, the first roller 11 and the second roller 14, therefore, the child can drive the whole draw-bar bag to move while playing, so that the child can carry the draw-bar bag voluntarily, the labor capacity of accompanying parents is reduced, and the self-handling capability of the child can be cultivated;

have GPS positioning mechanism 18 at the upper end internally mounted of inclusion 1, under the cooperation at the family's mobile phone end, make this GPS positioning mechanism 18 have real-time locate function, thereby make this pull rod package when losing, be convenient for find back, and the head of a family of being convenient for carries out real-time nurse to the children that carry this pull rod package, the head of a family of being more convenient for looks for the children of walking away who uses this pull rod package, in addition, be provided with solar panel 15 in the upper end of inclusion 1, therefore, when this pull rod package is used outdoors, solar panel 15 is stored in battery 17 with solar energy conversion for the electric energy under the effect of dc-to-ac converter, thereby be convenient for carry out electric power storage work to GPS positioning mechanism 18, this is exactly the theory of work of this formula children pull rod package of climbing that has GPS locate.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connected mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt among the prior art, and conventional model, including the conventional connected mode among the circuit connection adoption prior art, and the details are not repeated here, and the content that does not make detailed description in this description belongs to the prior art that skilled person in the art knows.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (10)

1. The utility model provides a but stair formula children's pull rod package climbs with GPS locate function, includes inclusion (1), chassis (9), solar panel (15) and first fixed block (23), its characterized in that: the bag comprises a bag body (1), wherein a fixed sleeve (2) is fixedly connected to the left side of the bag body (1), a fixed barrel (3) is connected to the inside of the fixed sleeve (2) in a penetrating manner, a vertical rod (4) is arranged inside the fixed barrel (3), a handle (5) is welded to the upper end of the vertical rod (4), a connecting block (6) is nested on the outer side of the vertical rod (4), a limiting block (7) is arranged at the lower end of the vertical rod (4), the limiting block (7) is connected with the vertical rod (4) through a connecting spring (8), an underframe (9) is located at the lower end of the fixed barrel (3), a driving mechanism (10) is installed at the left end of the underframe (9), and a first roller (11) is fixedly;

a connecting plate (12) is mounted below the underframe (9), the lower end of the connecting plate (12) is welded with a pedal plate (13), and the front side and the rear side of the left end of the pedal plate (13) are both welded with second rollers (14);

the solar panel (15) is embedded at the upper end of the bag body (1), the solar panel (15) is electrically connected with the storage battery (17), the storage battery (17) is positioned in the fixed box (16), the fixed box (16) is fixedly arranged at the upper end in the bag body (1), the rear side of the storage battery (17) is provided with a GPS positioning mechanism (18), a first strap (19) is fixedly arranged at the rear side of the bag body (1), the lower end of the first strap (19) is connected with a second strap (20), the lower end of the second strap (20) is fixedly connected with the rear side of the bag body (1), a first permanent magnet block (21) is embedded in the first strap (19), the first permanent magnet block (21) is magnetically connected with a second permanent magnet block (22), the second permanent magnet blocks (22) are embedded and installed inside the rear side of the bag body (1);

the first fixing block (23) is fixedly mounted at the right end of the connecting plate (12), the connecting plate (12) is connected with the bottom frame (9) through a sliding groove (24), and the left end of the sliding groove (24) is fixedly mounted with a second fixing block (25).

2. The stair-climbing children's trolley bag with GPS positioning function according to claim 1, wherein: the inside of a fixed cylinder (3) is of a hollow structure, the inside width of the fixed cylinder (3) is equal to the outside width of the bottom end of a vertical rod (4), and the vertical rod (4) is of a telescopic structure in the fixed cylinder (3).

3. The stair-climbing children's trolley bag with GPS positioning function according to claim 1, wherein: the upper end internal diameter size of connecting block (6) equals with the lower extreme external diameter size of montant (4), and the lower extreme internal diameter size of connecting block (6) equals with the upper end external diameter size of solid fixed cylinder (3) to the upper end of connecting block (6) and solid fixed cylinder (3) and the lower extreme of montant (4) all are connected through threaded connection's mode.

4. The stair-climbing children's trolley bag with GPS positioning function according to claim 1, wherein: the outer end of the limiting block (7) is of an arc-shaped structure, the limiting block (7) is of an elastic structure, and the limiting block (7) is connected with the fixed cylinder (3) in a clamping mode.

5. The climbing type children's draw-bar bag with GPS positioning function according to claim 1, wherein the left end of the bottom frame (9) and the lower end of the fixed cylinder (3) form an L-shaped structure, and the fixed cylinder (3) and the fixed sleeve (2) are connected in a nested manner.

6. The stair-climbing children's trolley bag with GPS positioning function according to claim 1, wherein: the driving mechanism (10) comprises a fixed rod (1001), a driven wheel (1002), a driving wheel (1003), a shell (1004), a connecting shaft (1005), a connecting wheel (1006), a connecting rod (1007) and an anti-skid pad (1008), dead lever (1001) through connection is in the centre of the inside of following driving wheel (1002), the outside meshing of following driving wheel (1002) is connected with action wheel (1003), the outside of following driving wheel (1002) and action wheel (1003) all is provided with shell (1004), the rear end of shell (1004) is connected with the surface fixed of chassis (9), the inside through connection of action wheel (1003) has connecting axle (1005), the one end and fifth wheel (1006) fixed connection of action wheel (1003) are kept away from in connecting axle (1005), the rear side of fifth wheel (1006) is passed through connecting rod (1007) and dead lever (1001) swing joint, the surface of fifth wheel (1006) is provided with slipmat (1008).

7. The stair-climbing children's trolley bag with GPS positioning function according to claim 6, wherein: the driving wheel (1003) is arranged at an equal angle relative to the center of the driven wheel (1002), the driving wheel (1003) and the driven wheel (1002) form a transmission structure, the driven wheel (1002) is connected with the front side and the rear side of the bottom frame (9) through a fixing rod (1001), and the fixing rod (1001) is of a rotating structure on the bottom frame (9).

8. The stair-climbing children's trolley bag with GPS positioning function according to claim 6, wherein: the outer surface of the non-slip mat (1008) is of a concave-convex structure, the non-slip mat (1008) is made of rubber materials, the non-slip mat (1008) is fixedly connected with the connecting wheels (1006), and the connecting wheels (1006) and the driving wheel (1003) are arranged in a one-to-one correspondence mode.

9. The stair-climbing children's trolley bag with GPS positioning function according to claim 1, wherein: the lower surface of the bottom frame (9) of the pedal (13) is of a sliding structure through a connecting plate (12), and the connecting plate (12) is symmetrically arranged relative to the vertical central axis of the pedal (13).

10. The stair-climbing children's trolley bag with GPS positioning function according to claim 1, wherein: the first shoulder strap (19) and the second shoulder strap (20) are symmetrically arranged about a vertical central axis of the bag body (1), and the first shoulder strap (19) and the second shoulder strap (20) are magnetically connected with the bag body (1).

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