CN220500721U - Liftable multi-functional folding shallow that gathers together - Google Patents

Abstract

The utility model relates to the technical field of carts, in particular to a multifunctional gathering and folding cart capable of lifting. The utility model comprises a trolley body, wherein the trolley body comprises a lifting mechanism, a left side wall component, a right side wall component, a front-back crossing component, a bottom frame component, a pull rod component, a wheel component and a cloth bag component. The lifting mechanism, the left and right side wall assemblies and the front and rear cross assemblies are structurally designed, so that the device is convenient for height adjustment, the loading volume is increased, the height of a person can be adjusted to the height of standing operation after the desk plate is installed, the lifting mechanism is convenient to open and fold through the structural design of the left and right side wall assemblies, the front and rear cross assemblies, the underframe assemblies and the pull rod assemblies, the underframe bearing capacity is good after the lifting mechanism is folded, the length of the pull rod is adjusted in multiple gears, the angle is adjustable, the whole frame connection is firmer, and the wheels, the cloth pockets and the desk plate can be quickly installed and detached through the structural design of the wheel assemblies and the cloth pocket assemblies, and the lifting mechanism has good popularization value.

Description

Liftable multi-functional folding shallow that gathers together

Technical Field

The utility model relates to the technical field of carts, in particular to a multifunctional gathering and folding cart capable of lifting.

Background

The cart belongs to outdoor leisure articles, is mainly used for outdoor activities, is loaded with outdoor activities such as folding chairs, tents, sunshade umbrellas, picnic tools, fishing tools and the like, can be used for carrying goods such as supermarket shopping, carrying express and the like, and can be additionally provided with a table board to be used as a table or a movable dining car;

the shallow is a instrument that is used for carrying article, and folding shallow that market at present all can only be fixed size after expanding, can not go up and down, can not grow the increase volume. As more and more articles are provided outdoors, when more articles are to be loaded, one cart cannot meet the use requirement; and after the desk plate is additionally arranged on the trolley, the height of the desktop can only be the height of the trolley and is relatively short, the trolley can not be lifted, and can only be bent to the waist when in outdoor cooking, the operation is relatively tired for a long time, or the trolley with a plurality of layers is very high after being folded, and the trolley is inconvenient to carry, so that the multifunctional gathering and folding trolley capable of lifting is provided.

Disclosure of Invention

The utility model aims to provide a lifting multifunctional gathering folding cart so as to solve the problems in the background technology.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a folding shallow is gathered together to multi-functional of liftable, includes the shallow body, the shallow body includes elevating system, controls lateral wall subassembly, front and back cross assembly, chassis subassembly, pull rod subassembly, wheel subassembly and cloth pocket subassembly, four terminal angles of shallow all are equipped with elevating system, elevating system is used for carrying out altitude mixture control to the shallow, is located two of same one side about being equipped with between the elevating system, is located two of same one end cross assembly is equipped with around being equipped with between the elevating system, the bottom of shallow is equipped with the chassis subassembly, the chassis subassembly is used for strengthening the support to the shallow, the one end of shallow is equipped with the pull rod subassembly, lateral wall subassembly, front and back cross assembly and pull rod subassembly are used for assisting the shallow to fold and gather, the bottom of elevating system all is equipped with the wheel subassembly, the inboard of shallow is equipped with cloth pocket subassembly.

Preferably, the elevating system includes outer tube, inner tube, telescopic tube cover, quick detach fixing base, slip quick detach fixing base, first chassis fixing base, marble, first axle sleeve and first bearing, four end angles of shallow all are equipped with the outer tube, the inboard of outer tube all sliding connection has the inner tube, the telescopic tube cover is all installed to the mouth of pipe upper end of outer tube, the top of inner tube all is fixed with the quick detach fixing base, the equal sliding connection in the outside of outer tube has the slip quick detach fixing base, the bottom of outer tube all is fixed with first chassis fixing base, all be fixed with the marble in the lower extreme mouth of pipe of inner tube, the outside homogeneous formula of marble is fixed with spherical arch, spherical arch of marble all runs through the inner tube and extends to the inner tube outside, spherical arch and inner tube sliding connection, the marble all is fixed with first axle sleeve in the lower extreme mouth of pipe of outer tube, the bottom of outer tube all is fixed with first bearing, a plurality of slotted holes that correspond with spherical protruding position equipartition, with spherical protruding sliding connection.

Preferably, the elevating system includes first riser, second riser, quick detach fixing base, first sliding sleeve, second sliding sleeve b, second chassis fixing base and marble, four end angles of shallow all are equipped with first riser, the top of first riser all is equipped with the second riser, the bottom of second riser all is fixed with first sliding sleeve, first sliding sleeve and first riser sliding connection, the top of first riser all is fixed with second sliding sleeve b, second sliding sleeve b and second riser sliding connection, the top of second riser all is fixed with the quick detach fixing base, the bottom of first riser all is fixed with the second chassis fixing base, the inboard of first riser also all equipartition is fixed with a plurality of marble, the outside homotype of marble is fixed with spherical protruding, the spherical protruding of marble all runs through first riser outside to first riser, spherical protruding and first riser sliding connection, the outside of first sliding sleeve also all has seted up and has corresponding with spherical protruding position, slotted hole and spherical protruding connection.

Preferably, the left and right side wall assembly comprises a first upper connecting pipe, a first long crossing pipe, a lower connecting pipe and a supporting pipe, wherein one end of the quick-release fixing seat is rotationally connected with the first upper connecting pipe, one end of the first upper connecting pipe is rotationally connected with the first long crossing pipe through a pin, two of the first long crossing pipes are located on the same side, the middle parts of the first long crossing pipes are rotationally connected with the lower connecting pipe through pins, one ends of the lower connecting pipes, far away from the first long crossing pipes, are rotationally connected with the supporting pipe through pins, the bottoms of the supporting pipe are rotationally connected with the sliding quick-release fixing seat through pins, and the tops of the supporting pipe are rotationally connected with the first long crossing pipes through pins.

Preferably, the left and right side wall assembly comprises a first upper connecting pipe, a first long crossing pipe, a lower connecting pipe and a supporting pipe, wherein one end of the quick-release fixing seat is rotationally connected with the first upper connecting pipe, one end of the first upper connecting pipe is rotationally connected with the first long crossing pipe through a pin, two of the first long crossing pipes are located on the same side, the middle parts of the first long crossing pipes are rotationally connected with the lower connecting pipe through pins, one ends of the lower connecting pipes, far away from the first long crossing pipes, are rotationally connected with the supporting pipe through pins, the bottoms of the supporting pipe are rotationally connected with the sliding quick-release fixing seat through pins, and the tops of the supporting pipe are rotationally connected with the first long crossing pipes through pins.

Preferably, the left and right side wall components comprise a second cross pipe and a third cross pipe, the second cross pipes are rotationally connected to the inner sides of the quick-release fixing seats, the bottoms of the second cross pipes are rotationally connected through pins at the same end, the third cross pipes are rotationally connected to the middle parts of the second cross pipes through pins, the tops of the third cross pipes are rotationally connected through pins at the same end, and the bottoms of the third cross pipes are rotationally connected with the sliding quick-release fixing seats through pins.

Preferably, the left and right side wall assembly comprises a second upper connecting pipe, short crossing pipes, second long crossing pipes and joint pieces, wherein one end of the quick-release fixing seat is rotationally connected with the second upper connecting pipe, one end of the second upper connecting pipe is rotationally connected with the short crossing pipes through the joint pieces, the bottoms of the short crossing pipes are rotationally connected through the joint pieces, the middle parts of the short crossing pipes are rotationally connected with the second long crossing pipes through pins, the tops of the second long crossing pipes are rotationally connected through the joint pieces, and the bottoms of the second long crossing pipes are rotationally connected with the sliding quick-release fixing seat through pins.

Preferably, the front-back cross assembly comprises a first cross pipe, the inner sides of the quick-release fixing seats are respectively connected with the first cross pipe in a rotating mode, the middle parts of the two first cross pipes located at the same end are respectively connected with the middle parts of the first cross pipes in a rotating mode through pins, and the bottoms of the first cross pipes are respectively connected with the sliding quick-release fixing seats in a rotating mode through pins.

Preferably, the front-back cross assembly comprises a cross connecting pipe and a fourth cross pipe, the inner sides of the quick-release fixing seats are all rotationally connected with the cross connecting pipe, one ends of the cross connecting pipes are all rotationally connected with the fourth cross pipe through pins, the two ends of the cross connecting pipes are located at the same end, the middle parts of the fourth cross pipes are rotationally connected through pins, and the bottoms of the fourth cross pipes are rotationally connected with the sliding quick-release fixing seats through pins.

Preferably, the front-rear crossing assembly comprises a first connecting rod and a second connecting rod, the inner sides of the quick-release fixing seats are respectively connected with the first connecting rod in a rotating mode, one end of each first connecting rod is respectively connected with the second connecting rod in a rotating mode through a joint piece, the middle portions of the two second connecting rods located at the same end are respectively connected with the middle portions of the second connecting rods in a rotating mode through pins, and the bottoms of the second connecting rods are respectively connected with the sliding quick-release fixing seats in a rotating mode through the pins.

Preferably, the chassis subassembly includes end host, fixed iron sheet, center piece, fixed block, connecting hole, spacing groove and spacing post, the bottom of first chassis fixing base all is fixed with end host, the one end of end host all is fixed with fixed iron sheet, four one side of fixed iron sheet is connected with a center piece through the pin rotation, the connecting hole has all been seted up to the one end of end host, the connecting hole passes through screw and first chassis fixing base fixed connection, the bottom of center piece all is fixed with spacing post, the spacing groove that corresponds with end host position is all seted up to four terminal angles of center piece bottom, spacing groove and end host transition fit, the both ends of spacing post all are fixed with two fixed blocks, the fixed block rotates with fixed iron sheet to be connected.

Preferably, the pull rod assembly comprises a pull rod supporting pipe, a pull rod supporting connecting piece, an outer pull rod, an inner pull rod, a pull rod sleeve, an inner pull rod plug A, an inner pull rod plug B, small castings, a connecting rod head, small reinforcing steel bars, a first button, a pull rod connecting piece and a handle, wherein the two pull rod supporting connecting pieces are fixedly arranged at one ends of the fixing seats of the first underframe, the pull rod supporting connecting pieces are rotatably connected with the pull rod supporting pipe at the tops of the pull rod supporting pipes through pins, the two pull rod supporting pipes are rotatably connected with a pull rod connecting piece through pins, the outer pull rod is assembled at the inner side of the pull rod connecting piece, the pull rod sleeve is buckled at the inner side of the top of the outer pull rod, the inner pull rod plug A and the inner pull rod plug B are penetrated at the inner side of the bottom of the inner pull rod, the inner pull rod plug A and the inner pull rod plug B are tightly attached, a small casting is slidably connected between the inner pull rod plug A and the inner side of the inner pull rod plug B, a first spring is fixedly arranged at the bottom of one side of the small castings, the first spring is fixedly connected with the inner plug A and the inner plug B, the small casting is fixedly connected with the first button is fixedly connected with the top of the inner pull rod plug A, the small plug A and the inner pull rod plug B is fixedly connected with the inner pull rod plug B through the inner pull rod head, the small button is fixedly connected with the top of the inner pull rod, and the inner pull rod is fixedly connected with the small support head.

Preferably, the wheel subassembly includes jump ring and wheel subassembly, is located two that is close to the handle the bottom of outer tube all is fixed with the jump ring, the inboard of jump ring is all rotated and is connected with the wheel subassembly, the iron gasket has all been cup jointed at the top of wheel subassembly, and the iron gasket is laminated with first axle sleeve, is located two that keep away from the handle the bottom of outer tube is also all welded fastening has the wheel subassembly.

Preferably, the wheel subassembly includes combination wheel, installation axostylus axostyle, second spring, buckle, second button, wheel subassembly, second axle sleeve, second bearing and draw-in groove, the inboard of outer tube all is equipped with the second axle sleeve, the inboard of second axle sleeve all is fixed with the second spring, the draw-in groove that corresponds with second spring position is all seted up in the outside of second axle sleeve, the inboard of draw-in groove all sliding connection has the buckle, the one end and the second spring of buckle are fixed, the other end of buckle all is fixed with the second button, second button and draw-in groove sliding connection, the bottom of second axle sleeve all is fixed with the second bearing, the bottom of second axle sleeve all is equipped with the combination wheel, the top of combination wheel all is fixed with the installation axostylus axostyle, the inclined plane has all been seted up at the top of installation axostylus axostyle and the inboard transitional fit of second bearing, the installation axostyle is connected with first axle sleeve rotation.

It can be clearly seen that the technical problems to be solved by the present application must be solved by the above-mentioned technical solutions of the present application.

Meanwhile, through the technical scheme, the utility model has at least the following beneficial effects:

1. according to the utility model, through the structural design of the lifting mechanism, the left and right side wall assemblies and the front and rear cross assemblies, the height of the device is convenient to adjust, the loading volume is increased, the height can be adjusted to the height of standing operation of a person after the desk plate is installed, and the flexibility of the device is improved.

2. The utility model has the advantages that through the structural design of the left and right side wall assemblies, the front and rear crossing assemblies, the underframe assemblies and the pull rod assemblies, the device is convenient to open and fold, the volume after folding is small, the underframe bearing capacity is good, the length of the pull rod is adjustable in multiple gears, and the angle is adjustable, so that the whole frame connection is more stable.

3. The utility model can quickly assemble and disassemble the wheels, the cloth bag and the table plate by the structural design of the wheel assembly and the cloth bag assembly, and has good popularization value.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the deployment structure of the present utility model;

FIG. 3 is a schematic view showing a connection structure of the outer tube and the second cloth bag of the present utility model;

FIG. 4 is a schematic view of the connection structure of the outer tube and the table top of the present utility model;

FIG. 5 is a schematic view showing the connection structure of the outer tube and the first upper connection tube of the present utility model;

FIG. 6 is a schematic view of the connection structure of the outer tube and the inner tube of the present utility model;

FIG. 7 is a schematic view showing a connection structure of the inner tube and the marble of the present utility model;

FIG. 8 is a schematic view of a folded structure of the present utility model;

FIG. 9 is a schematic view of the connection structure of the inner tube and the telescoping tube sleeve of the present utility model;

FIG. 10 is a schematic view showing the connection structure of the inner tube and the marble of the present utility model;

FIG. 11 is a schematic view of the connection structure of the first riser and the second riser of the present utility model;

FIG. 12 is a schematic diagram of the connection structure of the crossover connection tube and the fourth crossover connection tube of the present utility model;

FIG. 13 is a schematic view showing the folded structure of the first upper connecting pipe, the first long crossing pipe, the lower connecting pipe and the support pipe of the present utility model;

figure 14 is a schematic view of the connection structure of the first cross tube of the present utility model;

fig. 15 is a schematic view of the structure of a second cross tube and a third cross tube of the present utility model;

Figure 16 is a schematic view of the folded structure of the second and third cross tubes of the present utility model;

FIG. 17 is a schematic view of the connection structure of the first connecting rod and the second connecting rod of the present utility model;

FIG. 18 is a schematic view of the folded structure of the first and second connecting rods of the present utility model;

FIG. 19 is a schematic view of the connection structure of the bottom bracket tube and the center piece of the present utility model;

FIG. 20 is a schematic view of the connection structure of the center piece and the limiting groove of the present utility model;

FIG. 21 is a schematic view of the connection structure of the pull rod support tube and pull rod support connector of the present utility model;

FIG. 22 is a schematic view of the connection structure of the outer tube and the second sleeve of the present utility model;

FIG. 23 is a schematic view of the connection structure of the first sleeve and the snap spring of the present utility model;

FIG. 24 is a schematic view of the connection structure of the quick release fastener and the quick release buckle of the present utility model;

FIG. 25 is a schematic view showing the structure of a first pocket according to the present utility model;

FIG. 26 is a schematic view showing the structure of a second pocket according to the present utility model;

fig. 27 is an enlarged view of the structure of fig. 22 a according to the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

in the figure: 1. an outer tube; 2. an inner tube; 3. a telescopic pipe sleeve; 4. quick-dismantling the fixing seat; 5. a sliding quick-release fixing seat; 6. the first chassis fixing seat; 7. a marble; 8. a first sleeve; 9. a first bearing; 1a, a first riser; 2a, a second vertical pipe; 5a, a first sliding sleeve; 5b, a second sliding sleeve; 6a, a second chassis fixing seat; 10. a first upper connection pipe; 11. a first long cross tube; 12. a lower connecting pipe; 13. a support tube; 201. a first cross tube; 202. a second cross tube; 203. a third cross tube; 301. a first articulation rod; 302. a second articulation rod; 303. a second upper connection pipe; 304. short cross pipes; 305. a second long cross tube; 306. a joint member; 14. a cross connecting pipe; 15. a fourth cross tube; 16. a bottom support tube; 17. fixing the iron sheet; 18. a center piece; 19. a fixed block; 20. a connection hole; 21. a limit groove; 22. a limit column; 23. a pull rod supporting tube; 24. the pull rod supports the connecting piece; 25. an outer tie rod; 26. an inner tie rod; 27. a pull rod sleeve; 28. an inner draw bar plug A; 29. an inner draw bar plug B; 30. a small casting; 31. a connecting rod head; 32. small steel bars; 33. a first button; 34. a pull rod connecting piece; 35. a handle; 36. clamping springs; 37. a combination wheel; 38. installing a shaft lever; 39. a second spring; 40. a buckle; 41. a second button; 42. a wheel assembly; 43. quick release buckle; 44. the table is quickly disassembled; 45. a first cloth bag; 46. a second cloth bag; 47. a table plate; 48. a second sleeve; 49. a second bearing; 50. a clamping groove.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Embodiment one:

referring to fig. 1-27, a liftable multifunctional gathering and folding cart comprises a cart body, wherein the cart body comprises a lifting mechanism, a left side wall assembly, a right side wall assembly, a front cross assembly, a rear cross assembly, a bottom frame assembly, a pull rod assembly, wheel assemblies and a cloth bag assembly, the lifting mechanism is arranged at four end corners of the cart and is used for adjusting the height of the cart, the left side wall assembly and the right side wall assembly are arranged between two lifting mechanisms positioned at the same side, the front cross assembly and the rear cross assembly are arranged between two lifting mechanisms positioned at the same end, the bottom of the cart is provided with the bottom frame assembly, the bottom frame assembly is used for reinforcing and supporting the cart, one end of the cart is provided with the pull rod assembly, the left side wall assembly, the right side wall assembly, the front cross assembly and the pull rod assembly are used for assisting the cart to fold and gather, the wheel assemblies are arranged at the bottom of the lifting mechanism, and the cloth bag assembly is arranged at the inner side of the cart;

The lifting mechanism comprises an outer tube 1, an inner tube 2, a telescopic tube sleeve 3, a quick-release fixing seat 4, a sliding quick-release fixing seat 5, a first underframe fixing seat 6, a marble 7, a first shaft sleeve 8 and a first bearing 9, wherein the outer tube 1 is assembled at four end corners of the cart, the inner tube 2 is slidingly connected with the inner side of the outer tube 1, the telescopic tube sleeve 3 is arranged at the upper end of a tube orifice of the outer tube 1, the quick-release fixing seat 4 is fixedly arranged at the top of the inner tube 2, the sliding quick-release fixing seat 5 is slidingly connected with the outer side of the outer tube 1, the first underframe fixing seat 6 is fixedly arranged at the bottom of the outer tube 1, the marble 7 is fixedly arranged in a tube orifice at the lower end of the inner tube 2, spherical protrusions are uniformly and fixedly arranged at the outer side of the marble 7 and extend to the outer side of the inner tube 2 through the inner tube 2, the lower end pipe orifice of the outer pipe 1 of the marble 7 is internally and fixedly provided with a first shaft sleeve 8, the bottom of the first shaft sleeve 8 is fixedly provided with a first bearing 9, the outer side of the outer pipe 1 is uniformly provided with a plurality of slotted holes corresponding to the positions of the spherical protrusions, the slotted holes are in sliding connection with the spherical protrusions, when the height of the cart needs to be adjusted, the spherical protrusions on the marble 7 are pressed to be contracted into the slotted holes, the marble 7 is extruded and deformed to be contracted, then the inner pipe 2 is pulled to enable the spherical protrusions to be pulled into the outer pipe 1, the inner pipe 2 can be moved upwards along the inner side of the outer pipe 1, then the spherical protrusions are moved to the slotted holes corresponding to the designated positions, and when the spherical protrusions contact the slotted holes, the spherical protrusions are pushed to move into the slotted holes by elasticity generated by the marble 7 until the spherical protrusions are completely connected with the slotted holes, so that the lifting adjustment of the cart can be realized;

The left side wall assembly and the right side wall assembly comprise a first upper connecting pipe 10, a first long crossed pipe 11, a lower connecting pipe 12 and a supporting pipe 13, wherein one end of a quick-release fixing seat 4 is rotationally connected with the first upper connecting pipe 10, one end of the first upper connecting pipe 10 is rotationally connected with the first long crossed pipe 11 through a pin, the middle parts of the two first long crossed pipes 11 positioned on the same side are rotationally connected with the lower connecting pipe 12 through a pin, one end of the lower connecting pipe 12 far away from the first long crossed pipe 11 is rotationally connected with the supporting pipe 13 through a pin, the bottom of the supporting pipe 13 is rotationally connected with a sliding quick-release fixing seat 5 through a pin, the top of the supporting pipe 13 is rotationally connected with the first long crossed pipe 11 through a pin, when the trolley is required to be folded back and forth, the first underframe fixing seat 6 is detached from the bottom supporting pipe 16, the outer pipes 1 positioned at the two ends are pushed towards directions close to each other, the first upper connecting pipe 10 is rotationally connected with the first long crossed pipe 11 through a pin, the first upper connecting pipe 10 is rotationally connected with the quick-release fixing seat 4 through a pin, and the first long crossed pipe 11 is rotationally connected with the supporting pipe 13 through a pin, the two long crossed pipes 11 are rotationally connected with the first long crossed pipe 13 through a pin, and the two mutually opposite directions can be folded towards each other through a reverse direction through the rotation connection of the rotating connection of the supporting pipe 11;

The front-rear cross assembly comprises first cross pipe connecting holes 201, the inner sides of the quick-release fixing seats 4 are respectively and rotatably connected with the first cross pipe connecting holes 201, the middle parts of the two first cross pipe connecting holes 201 at the same end are respectively and rotatably connected with the sliding quick-release fixing seats 5 through pins, when the trolley needs to be folded left and right, the first underframe fixing seats 6 are detached and separated from the bottom supporting pipes 16, the outer pipes 1 at the two sides are pushed towards the directions close to each other, and because the second cross pipes 202 are rotatably connected with the quick-release fixing seats 4 through the pins, the second cross pipes 202 are rotatably connected with the first underframe fixing seats 6 through the pins, so that the two second cross pipes 202 rotate towards the reciprocal directions, and the gathering and folding of the trolley can be realized;

the chassis assembly comprises a bottom bracket 16, fixed iron sheets 17, a center piece 18, fixing blocks 19, connecting holes 20, limiting grooves 21 and limiting columns 22, wherein the bottom of a first chassis fixing seat 6 is fixedly provided with the bottom bracket 16, one ends of the bottom bracket 16 are fixedly provided with the fixed iron sheets 17, one sides of the four fixed iron sheets 17 are rotationally connected with the center piece 18 through pins, one ends of the bottom bracket 16 are respectively provided with the connecting holes 20, the connecting holes 20 are fixedly connected with the first chassis fixing seat 6 through screws, the bottom of the center piece 18 is fixedly provided with the limiting columns 22, four end angles of the bottom of the center piece 18 are respectively provided with the limiting grooves 21 corresponding to the positions of the bottom bracket 16, the limiting grooves 21 are in transition fit with the bottom bracket 16, two ends of the limiting columns 22 are respectively fixedly provided with two fixing blocks 19, the fixing blocks 19 are rotationally connected with the fixed iron sheets 17, the bottom bracket 16 can rotate 90 degrees around the fixing blocks 19 on the center piece 18, when the bottom bracket 16 rotates to a horizontal state, the limiting grooves 21 and the limiting columns 22 are in contact with the bottom bracket 16, and the other ends of the bottom bracket 16 are simultaneously connected with the first chassis fixing seat 6 through screws and the connecting holes 20, and the weight bearing plane can be formed;

The pull rod assembly comprises a pull rod supporting tube 23, a pull rod supporting connecting piece 24, an outer pull rod 25, an inner pull rod 26, a pull rod sleeve 27, an inner pull rod plug A28, an inner pull rod plug B29, a small casting 30, a connecting rod head 31, a small reinforcing steel bar 32, a first button 33, a pull rod connecting piece 34 and a handle 35, wherein the pull rod supporting connecting piece 24 is fixed at one ends of two first chassis fixing seats 6 positioned at the same end, the pull rod supporting tube 23 is connected at the top of the pull rod supporting piece 24 through pin rotation, a pull rod connecting piece 34 is connected at the top of the two pull rod supporting tubes 23 through pin rotation, the inner side of the pull rod connecting piece 34 is provided with the outer pull rod 25, the pull rod sleeve 27 is buckled at the inner side of the top of the outer pull rod 25, the inner pull rod 26 is assembled at the top of the outer pull rod 25, the inner pull rod plug A28 and the inner pull rod plug B29 are penetrated at the inner side of the bottom of the inner pull rod 26, the inner pull rod plug A28 and the inner pull rod plug B29 are tightly attached, a small casting 30 is slidably connected between the inner sides of the inner pull rod plug A28 and the inner pull rod plug B29, a first spring is fixed at the bottom of one side of the small casting 30 and fixedly connected with the inner side of the inner pull rod plug A28, a connecting rod head 31 is arranged at the front ends of the inner pull rod plug A28 and the inner pull rod plug B29, a connecting spring is sleeved at the top of the outer side of the connecting rod head 31, a small reinforcing steel bar 32 is fixed at the top of the connecting rod head 31, a first button 33 is fixed at the top of the small reinforcing steel bar 32, a handle 35 is fixed at the top of the inner pull rod 26, the first button 33 is slidably connected with the handle 35, when the inner pull rod 26 is pulled out, the small casting 30 in the inner pull rod plug A28 and the inner pull rod plug B29 is aligned with a first outer hole on the outer pull rod 25 under the action of the first spring, and the small casting 30 is ejected from the inner pull rod plug A28, and at the moment, the inner pull rod 26 is adjusted to a first gear; pressing the first 33 button again, the small casting 30 is retracted, the handle 35 is pulled upwards continuously, when the inner pull rod plug A28 and the inner pull rod plug B29 contact the pull rod sleeve 27, the inner pull rod 26 can not be pulled out any more, meanwhile, the small casting 30 is ejected under the action force of the first spring and aligned with the second outer hole on the outer pull rod 25, the first button 33 is released, the small casting 30 is ejected under the action force of the first spring, and at the moment, the inner pull rod 26 is adjusted to the second gear. When the first button 33 is pressed during retraction, the small casting 30 is retracted, the handle 35 is pushed downwards, and the inner pull rod 26 is retracted into the outer pull rod 25;

The wheel assembly comprises a clamp spring 36 and a wheel assembly 42, the clamp springs 36 are fixed at the bottoms of the two outer tubes 1 close to the handle 35, the wheel assembly 42 is connected to the inner sides of the clamp springs 36 in a rotating mode, iron gaskets are sleeved on the tops of the wheel assemblies 42 and are attached to the first shaft sleeve 8, the wheel assemblies 42 are welded and fixed at the bottoms of the two outer tubes 1 far away from the handle 35, and when the cart needs to be moved, the handle 35 pushes the wheel assemblies 42 to move, so that a user can conveniently and rapidly move the cart to a designated area;

the cloth pocket subassembly includes quick release buckle 43, table quick release buckle 44, first cloth pocket 45 and table 47, the inboard of shallow is fixed with first cloth pocket 45, four terminal angles of first cloth pocket 45 all are connected with slip quick release fixing base 5, the inside of first cloth pocket 45 is provided with the interlayer, four apex angles of first cloth pocket 45 all are fixed with quick release buckle 43, quick release buckle 43 lock joint is on quick release fixing base 4, table quick release buckle 44 is all equipped with at the top of quick release fixing base 4, table quick release buckle 44 and the inboard transitional fit of quick release fixing base 4, the top lock of a plurality of table quick release buckles 44 is connected with a table 47, four angles of first cloth pocket 45 are fixed in slip quick release fixing base 5, still mountable second cloth pocket 46 in the shallow, when we need raise the frame, can be with first cloth pocket 45 pull open for second cloth pocket 46 this moment, second cloth pocket 46 correspondingly also becomes high, the shallow can load more article. When we continue to raise the frame to the highest gear, the upper table 47 is installed, and then the upper and lower first cloth bags 45 are installed, so that the cart can be used as a movable dining car.

Embodiment two:

referring to fig. 11, the present embodiment is different from the first embodiment only in that the lifting mechanism comprises a first vertical tube 1a, a second vertical tube 2a, a quick-release fixing seat 4, a first sliding sleeve 5a, a second sliding sleeve 5b, a second chassis fixing seat 6a and a marble 7, the four end corners of the cart are equipped with the first vertical tube 1a, the top of the first vertical tube 1a is equipped with the second vertical tube 2a, the bottom of the second vertical tube 2a is fixed with the first sliding sleeve 5a, the first sliding sleeve 5a is in sliding connection with the first vertical tube 1a, the top of the first vertical tube 1a is fixed with the second sliding sleeve 5b, the second sliding sleeve 5b is in sliding connection with the second vertical tube 2a, the top of the second vertical tube 2a is fixed with the quick-release fixing seat 4, the bottom of the first vertical tube 1a is fixed with the second chassis fixing seat 6a, the inner side of the first vertical tube 1a is uniformly fixed with a plurality of marble 7, the outer side of the marble 7 is uniformly fixed with spherical protrusion, the spherical bulges of the marble 7 extend to the outside of the first vertical pipe 1a through the first vertical pipe 1a, the spherical bulges are in sliding connection with the first vertical pipe 1a, the outer side of the first sliding sleeve 5a is also provided with slotted holes corresponding to the positions of the spherical bulges, the slotted holes are in sliding connection with the spherical bulges, when the height of the trolley needs to be adjusted, the spherical bulges on the marble 7 are pressed to enable the spherical bulges to shrink into the slotted holes, the marble 7 is extruded, deformed and shrunk, then the second vertical pipe 2a is pulled, the spherical bulges are located in the first sliding sleeve 5a, the first sliding sleeve 5a can move upwards along the outer side of the first vertical pipe 1a, then the first sliding sleeve 5a moves to the spherical bulges corresponding to the designated positions, when the spherical bulges contact the slotted holes, the spherical bulges are pushed to move into the slotted holes by the elasticity generated by the marble 7 until the spherical bulges are completely connected with the slotted holes, the lifting adjustment of the cart can be realized.

Embodiment III:

referring to fig. 15 and 16, in this embodiment, only the left and right side wall assemblies are different from the first embodiment in that the left and right side wall assemblies include the second cross tube 202 and the third cross tube 203, the inner sides of the quick release fixing bases 4 are all rotationally connected with the second cross tube 202, the bottoms of the two second cross tubes 202 at the same end are rotationally connected through pins, the middle parts of the second cross tubes 202 are all rotationally connected with the third cross tube 203 through pins, the tops of the two third cross tubes 203 at the same end are rotationally connected through pins, the bottoms of the third cross tubes 203 are rotationally connected with the sliding quick release fixing bases 5 through pins, when the cart needs to be folded back and forth, the first chassis fixing bases 6 are detached from the bottom support tube 16, and the outer tubes 1 at the two ends are pushed towards directions approaching each other, because the second cross tube 202 is rotationally connected with the third cross tube 203 through pins, the second cross tube 202 is rotationally connected with the quick release fixing bases 4 through pins, and the third cross tube 203 is rotationally connected with the first chassis fixing bases 6 through pins, so that the second cross tube 202 and the third cross tube 203 can be folded reversely in the direction towards the direction of rotation of the third chassis fixing bases 203.

Embodiment four:

referring to fig. 17 and 18, the present embodiment is different from the first embodiment only in that the left and right side wall assemblies include a second upper connection pipe 303, a short cross pipe 304, a second long cross pipe 305 and a joint member 306, one end of the quick-release fixing seat 4 is rotatably connected with the second upper connection pipe 303, one end of the second upper connection pipe 303 is rotatably connected with the short cross pipe 304 through the joint member 306, the bottoms of the two short cross pipes 304 on the same side are rotatably connected with the second long cross pipe 305 through the joint member 306, the middle parts of the short cross pipes 304 are rotatably connected with the second long cross pipe 305 through the pin, the tops of the two second long cross pipes 305 on the same side are rotatably connected with the sliding quick-release fixing seat 5 through the pin, when the trolley is required to be folded back and forth, the first underframe fixing seat 6 is detached from the bottom bracket 16, the outer pipes 1 on the two ends are pushed towards directions close to each other, because the second upper connection pipe 303 is rotatably connected with the short cross pipe 304 through the pin, the second upper connection pipe 4 is rotatably connected with the second long cross pipe 305 through the joint member 306, and the two long cross pipes 305 are rotatably connected with the second cross pipe 305 through the pin, and the two long cross pipes are rotatably connected with the second fixing seat 6 through the pin.

Fifth embodiment:

referring to fig. 12 and 13, in this embodiment, only the front-rear cross assembly is different from the first embodiment in that the front-rear cross assembly includes a cross connecting pipe 14 and a fourth cross pipe 15, the inner sides of the quick release fixing bases 4 are all rotationally connected with the cross connecting pipe 14, one ends of the cross connecting pipes 14 are all rotationally connected with the fourth cross pipe 15 through pins, two of the cross connecting pipes are located at the same end, the middle parts of the fourth cross pipes 15 are rotationally connected through pins, the bottoms of the fourth cross pipes 15 are rotationally connected with the sliding quick release fixing bases 5 through pins, when the cart needs to be folded left and right, the first chassis fixing bases 6 are detached and separated from the bottom supporting pipes 16, and the outer pipes 1 located at two sides are pushed towards directions approaching to each other, because the cross connecting pipe 14 is rotationally connected with the quick release fixing bases 4 through pins, the cross connecting pipe 14 is rotationally connected with the fourth cross connecting pipe 15 through pins, and the fourth cross connecting pipe 15 is rotationally connected with the first chassis fixing bases 6 through pins, so that the two fourth cross pipes 15 rotate towards directions opposite to each other, and the folding cart can be folded.

Example six:

referring to fig. 17 and 18, the present embodiment is different from the first embodiment only in that the front-rear crossing assembly includes the first joint lever 301 and the second joint lever 302, the inner sides of the quick-release fixing bases 4 are both rotatably connected with the first joint lever 301, one ends of the first joint lever 301 are both rotatably connected with the second joint lever 302 through the joint member 306, the middle parts of the two second joint levers 302 located at the same end are rotatably connected through the pin, the bottoms of the second joint levers 302 are both rotatably connected with the sliding quick-release fixing bases 5 through the pin, when the cart is required to be folded left and right, the first chassis fixing bases 6 are detached from the bottom tube 16, the outer tubes 1 located at both sides are pushed toward directions approaching each other, and because the first joint lever 301 is rotatably connected with the quick-release fixing bases 4 through the pin, the first joint lever 301 is rotatably connected with the second joint lever 302 through the joint member 306, and the middle parts of the two second joint levers 302 located at the same end are rotatably connected through the pin, so that the two second joint levers 302 can be folded toward directions of reverse.

Embodiment seven:

22-27, the wheel assembly only differs from the first embodiment in that the wheel assembly comprises a combined wheel 37, a mounting shaft rod 38, a second spring 39, a buckle 40, a second button 41, a wheel assembly 42, a second shaft sleeve 48, a second bearing 49 and a clamping groove 50, wherein the second shaft sleeve 48 is assembled on the inner side of the outer tube 1, the second spring 39 is fixedly arranged on the inner side of the second shaft sleeve 48, the clamping groove 50 corresponding to the position of the second spring 39 is arranged on the outer side of the second shaft sleeve 48, the buckle 40 is slidingly connected on the inner side of the clamping groove 50, one end of the buckle 40 is fixedly connected with the second spring 39, the second button 41 is fixedly connected with the second spring 41 at the other end of the buckle 40, the second button 41 is slidingly connected with the clamping groove 50, the second bearing 49 is fixedly arranged at the bottom of the second shaft sleeve 48, the combined wheel 37 is fixedly arranged on the top of the combined wheel 37, the inclined surface is arranged on the top of the mounting shaft rod 38, the mounting shaft rod 38 is in transition fit with the inner side of the second bearing 49, and the mounting shaft rod 38 is rotationally connected with the first shaft sleeve 8;

when the mounting shaft 38 is inserted into the second sleeve 48, the inclined surface of the mounting shaft 38 can push the buckle 40 open under the action of pushing force, the buckle 40 moves inwards in a groove formed in the second sleeve 48, when the mounting shaft 38 is inserted to the bottom, the buckle 40 moves outwards under the action of the second spring 39 to reset, and meanwhile the buckle 40 is clamped in a clamping groove 50 on the wheel assembly shaft. Thus, the mounting shaft 38 is caught and the quick mounting is completed;

The center hole of the second shaft sleeve 48 is circular, the installation shaft rod 38 can rotate 360 degrees around the axial clamp spring of the wheel sleeve, and when the center hole of the second shaft sleeve 48 is triangular, quadrangular or polygonal and the wheel axle on the installation shaft rod 38 is also matched with the triangular, quadrangular or polygonal, as shown in fig. 23, the installation shaft rod 38 cannot rotate after being inserted into the second shaft sleeve 48;

when we press the second button 41, the buckle 40 moves inward, the buckle 40 leaves the clamping groove 50 of the second sleeve 48, and at this time, the mounting shaft rod 38 can be pulled out of the second sleeve 48, so that quick disassembly is realized. Releasing the button second button 41, the catch 40 is reset under the force of the second spring 39.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (13)

1. The utility model provides a liftable multi-functional folding shallow that gathers together, its characterized in that, including the shallow body, the shallow body includes elevating system, control lateral wall subassembly, front and back cross assembly, chassis subassembly, pull rod subassembly, wheel subassembly and cloth pocket subassembly, four terminal angles of shallow all are equipped with elevating system, elevating system is used for carrying out altitude mixture control to the shallow, is located two of same one side be equipped with a control lateral wall subassembly between the elevating system, be located two of same one end be equipped with a front and back cross assembly between the elevating system, the bottom of shallow is equipped with the chassis subassembly, the chassis subassembly is used for strengthening support to the shallow, the one end of shallow is equipped with the pull rod subassembly, control lateral wall subassembly, front and back cross assembly and pull rod subassembly are used for assisting the shallow to fold and gather together, elevating system's bottom all is equipped with wheel subassembly, the inboard of shallow is equipped with cloth pocket subassembly, elevating system includes outer tube (1), inner tube (2), expansion tube sleeve (3), quick-release tube (5), first tube (6), first tube (3) and first tube (6) are all installed in the side tube (1) are all installed to the side tube (3), the top (1) is all fixed with the fixing base (8) is installed to the side tube (1), the outer side of the outer tube (1) is connected with a sliding quick-release fixing seat (5) in a sliding way, the bottom of the outer tube (1) is fixed with a first underframe fixing seat (6), the lower end pipe orifice of the inner tube (2) is internally fixed with a marble (7), the outer side of the marble (7) is uniformly fixed with a spherical bulge, the spherical bulge of the marble (7) penetrates through the inner tube (2) and extends to the outer part of the inner tube (2), the ball-shaped bulge is in sliding connection with the inner tube (2), the marble (7) is fixedly provided with a first shaft sleeve (8) in the lower end tube orifice of the outer tube (1), the bottom of the first shaft sleeve (8) is fixedly provided with a first bearing (9), a plurality of slotted holes corresponding to the positions of the ball-shaped bulge are uniformly distributed in the outer side of the outer tube (1), and the slotted holes are in sliding connection with the ball-shaped bulge.

2. The lifting multifunctional gathering and folding trolley according to claim 1, wherein the lifting mechanism comprises a first vertical pipe (1 a), a second vertical pipe (2 a), a quick-release fixing seat (4), a first sliding sleeve (5 a), a second sliding sleeve (5 b), a second underframe fixing seat (6 a) and a marble (7), four end corners of the trolley are respectively provided with the first vertical pipe (1 a), the top of the first vertical pipe (1 a) is respectively provided with the second vertical pipe (2 a), the bottom of the second vertical pipe (2 a) is respectively fixed with the first sliding sleeve (5 a), the first sliding sleeve (5 a) is in sliding connection with the first vertical pipe (1 a), the top of the first vertical pipe (1 a) is respectively fixed with the second sliding sleeve (5 b), the top of the second vertical pipe (2 a) is respectively fixed with the quick-release fixing seat (4), the bottom of the first vertical pipe (1 a) is respectively fixed with the second sliding sleeve (5 a), the first spherical protrusion (7 a) is respectively fixed with the first spherical protrusion (1 a) and the first spherical protrusion (7 a) is respectively extended from the outer side of the first vertical pipe (1 a), the outer sides of the first sliding sleeves (5 a) are also provided with slotted holes corresponding to the positions of the spherical protrusions, and the slotted holes are in sliding connection with the spherical protrusions.

3. The lifting multifunctional gathering and folding trolley according to claim 1, wherein the left side wall component and the right side wall component comprise a first upper connecting pipe (10), a first long crossing pipe (11), a lower connecting pipe (12) and a supporting pipe (13), one end of the quick-release fixing seat (4) is rotationally connected with the first upper connecting pipe (10), one end of the first upper connecting pipe (10) is rotationally connected with the first long crossing pipe (11) through a pin, the middle parts of the two first long crossing pipes (11) located on the same side are rotationally connected through a pin, the bottoms of the first long crossing pipes (11) are rotationally connected with the lower connecting pipe (12) through pins, one ends of the lower connecting pipe (12) far away from the first long crossing pipes (11) are rotationally connected with the supporting pipe (13) through pins, and the bottoms of the supporting pipe (13) are rotationally connected with the sliding quick-release fixing seat (5) through pins, and the tops of the supporting pipe (13) are rotationally connected with the first long crossing pipes (11) through pins.

4. The lifting multifunctional gathering and folding trolley according to claim 1, wherein the left and right side wall components comprise a second cross pipe (202) and a third cross pipe (203), the second cross pipes (202) are rotatably connected to the inner sides of the quick-release fixing seats (4), the bottoms of the two second cross pipes (202) located at the same end are rotatably connected through pins, the third cross pipes (203) are rotatably connected to the middle parts of the second cross pipes (202) through pins, the tops of the two third cross pipes (203) located at the same end are rotatably connected through pins, and the bottoms of the third cross pipes (203) are rotatably connected with the sliding quick-release fixing seats (5) through pins.

5. The lifting multifunctional gathering and folding cart according to claim 1, wherein the left side wall component and the right side wall component comprise a second upper connecting pipe (303), a short cross pipe (304), a second long cross pipe (305) and a joint piece (306), one end of the quick-release fixing seat (4) is rotationally connected with the second upper connecting pipe (303), one end of the second upper connecting pipe (303) is rotationally connected with the short cross pipe (304) through the joint piece (306), bottoms of the two short cross pipes (304) on the same side are rotationally connected through the joint piece (306), middle parts of the short cross pipes (304) are rotationally connected with a second long cross pipe (305) through pins, tops of the two second long cross pipes (305) on the same side are rotationally connected through the joint piece (306), and bottoms of the second long cross pipes (305) are rotationally connected with the sliding quick-release fixing seat (5) through pins.

6. The lifting multifunctional gathering and folding trolley according to claim 1, wherein the front-rear crossing assembly comprises first crossing pipes (201), the inner sides of the quick-release fixing seats (4) are rotationally connected with the first crossing pipes (201), the middle parts of the two first crossing pipes (201) positioned at the same end are rotationally connected through pins, and the bottoms of the first crossing pipes (201) are rotationally connected with the sliding quick-release fixing seats (5) through pins.

7. The lifting multifunctional gathering and folding trolley according to claim 1, wherein the front-rear crossing assembly comprises a crossing connecting pipe (14) and a fourth crossing pipe (15), the inner sides of the quick-release fixing seats (4) are rotationally connected with the crossing connecting pipe (14), one ends of the crossing connecting pipes (14) are rotationally connected with the fourth crossing pipe (15) through pins, two of the same ends are located, the middle parts of the fourth crossing pipes (15) are rotationally connected through pins, and the bottoms of the fourth crossing pipes (15) are rotationally connected with the sliding quick-release fixing seats (5) through pins.

8. The lifting multifunctional gathering and folding cart according to claim 5, wherein the front-rear crossing assembly comprises a first connecting rod (301) and a second connecting rod (302), the inner sides of the quick-release fixing seats (4) are respectively connected with the first connecting rod (301) in a rotating mode, one ends of the first connecting rods (301) are respectively connected with the second connecting rods (302) in a rotating mode through joint pieces (306), the middle portions of the two second connecting rods (302) located at the same end are respectively connected with the middle portions of the two second connecting rods (302) in a rotating mode through pins, and the bottoms of the second connecting rods (302) are respectively connected with the sliding quick-release fixing seats (5) in a rotating mode through pins.

9. The lifting multifunctional gathering and folding trolley according to claim 1, wherein the underframe component comprises a bottom supporting tube (16), fixed iron sheets (17), a center piece (18), a fixing block (19), a connecting hole (20), limiting grooves (21) and limiting columns (22), the bottom of the first underframe fixing seat (6) is fixedly provided with the bottom supporting tube (16), one end of the bottom supporting tube (16) is fixedly provided with the fixed iron sheets (17), one side of the four fixed iron sheets (17) is rotatably connected with a center piece (18) through a pin, one end of the bottom supporting tube (16) is fixedly connected with the connecting hole (20) through a screw, the bottom of the center piece (18) is fixedly connected with the first underframe fixing seat (6), four end angles of the bottom of the center piece (18) are respectively provided with the limiting grooves (21) corresponding to the positions of the bottom supporting tube (16), the limiting grooves (21) are in transition fit with the bottom supporting tube (16), and the two limiting blocks (19) are fixedly connected with the two fixed iron sheets (19).

10. The lifting multifunctional gathering and folding trolley according to claim 1, wherein the pull rod assembly comprises a pull rod supporting tube (23), pull rod supporting connecting pieces (24), an outer pull rod (25), an inner pull rod (26), a pull rod sleeve (27), an inner pull rod plug A (28), an inner pull rod plug B (29), a small casting (30), a connecting rod head (31), a small reinforcing steel bar (32), a first button (33), a pull rod connecting piece (34) and a handle (35), one ends of the two first underframe fixing seats (6) at the same end are respectively fixed with the pull rod supporting connecting pieces (24), the top parts of the pull rod supporting connecting pieces (24) are respectively connected with the pull rod supporting tube (23) through pin rotation, the top parts of the two pull rod supporting tubes (23) are respectively connected with the pull rod connecting pieces (34) through pin rotation, the inner side of the pull rod connecting pieces (34) is provided with the outer pull rod (25), the inner side of the top of the outer pull rod (25) is buckled with the sleeve (27), the top part of the outer pull rod (25) is provided with the inner pull rod (26), one end of the bottom part (26) is provided with the inner pull rod plug (29) and the inner plug (28) is tightly fitted with the inner plug B, a small casting (30) is slidably connected between the inner sides of the inner pull rod plug A (28) and the inner pull rod plug B (29), a first spring is fixed at the bottom of one side of the small casting (30), the first spring is fixedly connected with the inner side of the inner pull rod plug A (28), a connecting rod head (31) is mounted at the front ends of the inner pull rod plug A (28) and the inner pull rod plug B (29), a connecting spring is sleeved at the top of the outer side of the connecting rod head (31), a small reinforcing steel bar (32) is fixed at the top of the connecting rod head (31), a first button (33) is fixed at the top of the small reinforcing steel bar (32), and a handle (35) is fixed at the top of the inner pull rod (26), and the first button (33) is slidably connected with the handle (35).

11. The lifting multifunctional gathering and folding cart according to claim 10, wherein the wheel assembly comprises a clamp spring (36) and a wheel assembly (42), the clamp springs (36) are respectively fixed at the bottoms of the two outer tubes (1) close to the handle (35), the wheel assembly (42) is respectively connected with the inner sides of the clamp springs (36) in a rotating mode, iron gaskets are respectively sleeved at the tops of the wheel assemblies (42), the iron gaskets are attached to the first shaft sleeve (8), and the wheel assemblies (42) are respectively welded and fixed at the bottoms of the two outer tubes (1) far away from the handle (35).

12. The lifting multifunctional folding cart according to claim 10, wherein the wheel assembly comprises a combined wheel (37), a mounting shaft (38), a second spring (39), a buckle (40), a second button (41), a wheel assembly (42), a second bearing sleeve (48), a second bearing (49) and a clamping groove (50), the second bearing sleeve (48) is assembled on the inner side of the outer tube (1), the second spring (39) is assembled on the inner side of the second bearing sleeve (48), the clamping groove (50) corresponding to the position of the second spring (39) is formed on the outer side of the second bearing sleeve (48), the buckle (40) is connected on the inner side of the clamping groove (50) in a sliding manner, one end of the buckle (40) is fixed with the second spring (39), the second button (41) is fixedly connected with the other end of the buckle (40), the second button (41) is fixedly connected with the clamping groove (50) in a sliding manner, the second bearing sleeve (49) is fixedly arranged on the bottom of the second bearing sleeve (48), the second bearing sleeve (48) is fixedly provided with the bottom of the second bearing sleeve (48), the combined wheel (37) is assembled on the bottom of the second bearing sleeve (37), the combined shaft (38) is assembled on the top of the combined shaft (38), the mounting shaft (38) is rotatably connected to the first sleeve (8).

13. The lifting multifunctional gathering and folding trolley according to claim 1, wherein the cloth bag assembly comprises a quick release buckle (43), a table quick release buckle (44), a first cloth bag (45) and a table plate (47), the first cloth bag (45) is fixed on the inner side of the trolley, four end corners of the first cloth bag (45) are connected with a sliding quick release fixing seat (5), an interlayer is arranged in the first cloth bag (45), the quick release buckle (43) is fixed on four top corners of the first cloth bag (45), the quick release buckle (43) is buckled on the quick release fixing seat (4), the top of the quick release fixing seat (4) is provided with the quick release buckle (44), the table quick release buckle (44) is in transition fit with the inner side of the quick release fixing seat (4), and a plurality of top buckles of the table quick release buckles (44) are connected with the table plate (47).