CN112406983B

CN112406983B - Foldable transfer trolley

Info

Publication number: CN112406983B
Application number: CN202011191720.2A
Authority: CN
Inventors: 陈奉楼
Original assignee: Chongqing Suton Precision Mold Co ltd
Current assignee: Chongqing Suton Precision Mold Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2023-03-28
Anticipated expiration: 2040-10-30
Also published as: CN112406983A

Abstract

The invention provides a foldable transfer trolley which comprises a bottom frame and four universal wheel sets, wherein the bottom frame is formed by two transverse rods and two vertical rods in a surrounding mode, the four universal wheel sets are respectively installed at four corners of the bottom frame, grooves are axially formed in the transverse rods, two ends of each transverse rod are respectively and rotatably connected with supporting rods capable of being clamped in the grooves, connecting rods are clamped between every two adjacent supporting rods on different transverse rods, and the connecting rods are located right above the vertical rods; the movable rod comprises a hollow first rod section and a second rod section which is arranged in a drawing manner with the first rod section; the connecting rod and a plurality of the movable rods clamped with the connecting rod form a supporting grid, and the supporting grid is two layers distributed from top to bottom. The invention provides a transfer trolley which can be folded to reduce occupied space, so that the transfer trolley can be folded when being idle, and the occupied effective space is avoided.

Description

Foldable transfer trolley

Technical Field

The invention relates to the technical field of transfer trolleys, in particular to a foldable transfer trolley.

Background

When materials or tools are transported in a workshop, the transporting trolley can be more flexible than a conveying belt and the like.

However, the transfer trolley in the prior art generally comprises a trolley body, wheel sets, a goods shelf and the like, wherein the goods shelf is installed on the trolley body, the components are generally fixedly connected, the transfer trolley occupies a large space, and the transfer trolley occupies a limited operation space in a workshop when not used.

Therefore, this application is planned to provide a transportation dolly that can fold to make its occupation effective space that can be as few as possible when idle.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a foldable transfer trolley, which solves the problem that the transfer trolley in the prior art occupies the workshop space when being idle.

According to the embodiment of the invention, the foldable transfer trolley comprises a bottom frame and four universal wheel sets, wherein the bottom frame is surrounded by two cross rods and two vertical rods, the four universal wheel sets are respectively installed at four corners of the bottom frame, grooves are axially formed in the cross rods, two ends of each cross rod are respectively and rotatably connected with supporting rods capable of being clamped in the grooves, connecting rods are clamped between every two adjacent supporting rods on different cross rods, and the connecting rods are located right above the vertical rods;

the transfer trolley also comprises a plurality of movable rods, two ends of each movable rod are respectively clamped with the two connecting rods on the same plane, and each movable rod comprises a hollow first rod section and a second rod section which is arranged in a drawing mode with the first rod section; the connecting rods and the movable rods clamped with the connecting rods form a supporting grid, and the supporting grid is divided into two layers which are distributed up and down; the supporting rod is further connected with a first fixing frame and a second fixing frame which are arranged at the upper end and the lower end of the supporting rod in a clamping mode, wherein the second fixing frame is fixedly connected with a supporting mesh.

In the technical scheme, the movable rod and the supporting rod are clamped and connected and can be taken down, the supporting rod can be folded into the cross rod, and the size of the transfer trolley can be minimized when the transfer trolley is idle; when the material is transported to needs, can realize the equipment fast: the rotary supporting rod and the cross rod are in a right angle, and the connecting rod and the movable rod are clamped, so that the assembly is completed; and set up the support net of equipment into the bilayer, can be according to how many the number of piles of selecting the equipment of material be the individual layer or the bilayer, set up on the bracing piece and be used for accomodating unnecessary movable rod (when the support net is the individual layer, have unnecessary movable rod, also have unnecessary movable rod when incomplete joint all movable rod), can avoid movable rod and transportation dolly to break away from.

Furthermore, the both ends of horizontal pole respectively fixedly connected with be located axis of rotation in the recess, just the bracing piece rotates with the axis of rotation to be connected, the bracing piece turn to with when the horizontal pole is the right angle, the lower terminal surface of bracing piece with the grooved underside is gapped, still include follow insert outside the recess limiting plate of clearance department, and the last face and the hypoplastron face of limiting plate respectively with terminal surface under the bracing piece with the grooved underside offsets.

Furthermore, offer the confession on the connecting rod a plurality of draw-in grooves of movable rod joint, keep away from in the first pole section fixedly connected with stopper on the one end inner wall of connecting rod, the second pole section is kept away from the one end of bracing piece is inserted in the first pole section, and sunken being provided with confession on the second pole section the gliding spacing groove of stopper.

Furthermore, the cross section of the first rod section and the cross section of the second rod section are both square, and the second rod section further comprises a clamping section which is the same as the first rod section in size and is far away from the first rod section.

Further, still be provided with on the bracing piece right the connecting rod both ends carry out the supporting shoe that supports, wherein the up end of supporting shoe is sunken on be provided with the wedge groove fixedly connected with can imbed the wedge of wedge inslot on the connecting rod, the side of supporting shoe still fixedly connected with connecting block, just be provided with the card hole that supplies the connecting block card to go into on the bracing piece.

Furthermore, the transfer trolley also comprises a directional wheel set which is connected with the cross rod and is positioned at the middle section of the cross rod; the directional wheel set comprises a first L-shaped mounting rod, the first L-shaped mounting rod comprises a first vertical section fixedly connected with the cross rod and a first horizontal section located below the cross rod and rotatably connected with a first roller, and the first roller rolls by taking the first horizontal section as an axis.

Furthermore, the universal wheel group includes with the montant rotates the second L shape installation pole of being connected, the second L shape installation pole include with montant fixed connection's second vertical section and be located the montant below and rotate the second horizontal segment that is connected with the second gyro wheel, and the second gyro wheel uses the second horizontal segment as the axial lead and rolls.

Furthermore, the cross rod is fixedly connected with an installation sleeve, and the second vertical section is rotatably connected with the installation sleeve.

Further, the diameter of the first roller is larger than that of the second roller, and the lower edges of the first roller and the second roller are in the same horizontal plane; the first idler wheel and the second idler wheel respectively comprise a roller which is rotationally connected with the first horizontal section or the second horizontal section, and a nylon layer which is wrapped on the outer wall of the roller, wherein a plurality of first through holes which are distributed along the axial direction of the roller and a plurality of second through holes which are communicated with each first through hole and extend to the outer wall of the nylon layer along the radial direction of the roller are arranged on the nylon layer; the first through hole is arranged between the two adjacent second through holes and is connected with the first through hole.

Compared with the prior art, the invention has the following beneficial effects:

can conveniently accomplish the equipment and dismantle (folding promptly), can be according to what the number of piles that how much decision support grid of transported material when the equipment, and unnecessary movable rod can effectively be accomodate, prevent to break away from, lose with the transportation dolly.

Drawings

FIG. 1 is a first (front) view of the general structure of an embodiment of the present invention;

FIG. 2 is a second schematic diagram (side view) of the overall structure of the embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of the structure at A in FIG. 1;

FIG. 4 is an enlarged view of a portion of the structure at B in FIG. 2;

FIG. 5 is an enlarged view of a portion of the structure at C in FIG. 2;

FIG. 6 is a schematic diagram of the overall structure of a nylon layer according to an embodiment of the present invention;

in the above drawings:

1. a cross bar; 2. a vertical rod; 3. a bottom frame; 4. a universal wheel set; 5. a directional wheel set; 6. a first L-shaped mounting bar; 7. a first vertical section; 8. a first roller; 9. a first horizontal segment; 10. a support bar; 11. a connecting rod; 12. a movable rod; 13. a first pole segment; 14. a second pole segment; 15. a first fixed frame; 16. a second fixed frame; 17. supporting the mesh cloth; 18. a rotating shaft; 19. a limiting plate; 20. a gap; 21. a card slot; 22. a limiting block; 23. a limiting groove; 24. a clamping section; 25. a support block; 26. a wedge block; 27. connecting blocks; 28. a second L-shaped mounting bar; 29. a second vertical section; 30. a second roller; 31. a second horizontal segment; 32. installing a sleeve; 33. a roller; 34. a nylon layer; 35. a first through hole; 36. a second through hole; 37. a third via.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

As shown in fig. 1, 2 and 5, the embodiment provides a foldable transfer trolley, which includes a bottom frame 3 enclosed by two cross bars 1 and two vertical bars 2, and four universal wheel sets 4 respectively installed at four corners of the bottom frame 3, wherein the universal wheel sets 4 are arranged to realize free movement of the transfer trolley, so as to make the transfer trolley move more stably;

the transfer trolley also comprises a directional wheel set 5 which is connected with the cross rod 1 and is positioned at the middle section of the cross rod 1, the moving direction of the directional wheel set 5 is fixed, the universal wheel set 4 is mainly used for realizing the function of convenient steering when the transfer trolley moves, and the universal wheel set 4 and the directional wheel set 5 are both used for realizing the movement of the transfer trolley after the transfer trolley moves to the required direction;

the directional wheel set 5 comprises a first L-shaped mounting rod 6, the first L-shaped mounting rod 6 comprises a first vertical section 7 fixedly connected with the cross rod 1 and a first horizontal section 9 positioned below the cross rod 1 and rotatably connected with a first roller 8, and the first roller 8 rolls by taking the first horizontal section 9 as an axis;

the cross bar 1 is axially provided with a groove, two ends of the cross bar 1 are respectively and rotatably connected with supporting rods 10 which can be clamped in the groove, and particularly, the sum of the lengths of the two supporting rods 10 is smaller than the length of the groove, so that the two supporting rods 10 can be smoothly accommodated in the groove; a connecting rod 11 is clamped between two adjacent supporting rods 10 on different cross rods 1, and the connecting rod 11 is positioned right above the vertical rod 2;

the transfer trolley further comprises a plurality of movable rods 12, two ends of each movable rod 12 are respectively clamped with the two connecting rods 11 on the same plane, and each movable rod 12 comprises a hollow first rod section 13 and a second rod section 14 which is arranged in a drawing mode with the first rod section 13; the connecting rod 11 and the movable rods 12 clamped with the connecting rod form a supporting grid, the supporting grid is divided into two layers which are distributed up and down, and the second rod section 14 can be retracted into the first rod section 13, so that the volume minimization of the movable rods 12 is realized, and the additional occupied space is avoided;

the supporting rod 10 is further clamped with a first fixed frame 15 and a second fixed frame 16 which are positioned at the upper end and the lower end of the supporting rod 10, wherein a supporting mesh 17 is fixedly connected in the second fixed frame 16, the size of the first fixed frame 15 and the size of the second fixed frame 16 are equal to (or slightly larger than) that of the first rod section 13, and the movable rod 12 can pass through the first fixed frame, the supporting mesh 17 is arranged to pass through the first fixed frame 15 and support the lower end of the movable rod 12 inserted into the second fixed frame 16, so that the movable rod is prevented from directly falling off, and meanwhile, the supporting mesh 17 can avoid impact damage to the movable rod 12; in particular, when the movable rod 12 is stored, the second rod segment 14 is first retracted into the first rod segment 13 and then inserted into the first fixed frame 15 and the second fixed frame 16.

In the above embodiment, the movable rod 12 and the support rod 10 are clamped and taken down, and the support rod 10 can be folded into the cross rod 1, so that the volume of the transfer trolley can be minimized when the transfer trolley is not in use; when the material is transported to needs, can realize the equipment fast: the rotary supporting rod 10 is right-angled to the cross rod 1, and the connecting rod 11 and the movable rod 12 are clamped, so that the assembly is completed; the assembled support grids are double-layered, the number of assembled layers can be selected to be single-layered or double-layered according to the amount of materials, and a first fixed frame 15 and a second fixed frame 16 for accommodating redundant movable rods 12 (when the support grids are single-layered, redundant movable rods 12 are provided, or redundant movable rods 12 are provided when all movable rods 12 are not clamped) are arranged on the support rods 10, so that the movable rods 12 can be prevented from being separated from the transfer trolley;

the transfer trolley provided by the embodiment can conveniently complete assembly and disassembly (namely folding), the number of layers of the supporting grids can be determined according to the amount of transferred materials during assembly, and redundant movable rods 12 can be effectively stored, so that the transfer trolley is prevented from being separated from and lost;

in particular, the distance between the support mesh 17 in the first fixed frame 15 and the second fixed frame 16 is less than the length of the first rod segment 13, so that the first fixed frame 15 and the second fixed frame 16 are prevented from being unable to effectively limit and store the movable rod 12.

As shown in fig. 1 and 5, preferably, two ends of the cross bar 1 are respectively and fixedly connected with a rotating shaft 18 positioned in the groove, and the support bar 10 is rotatably connected with the rotating shaft 18, so that the support bar 10 is rotatably connected with the cross bar 1, and the folding function is ensured;

when the supporting rod 10 rotates to form a right angle with the cross rod 1, a gap 20 is formed between the lower end surface of the supporting rod 10 and the bottom surface of the groove, and the gap 20 is arranged to ensure that the rotation can be normally carried out;

in order to prevent the right angle unstability that forms, the transport trolley still includes from insert in the recess the limiting plate 19 of clearance 20 department, and the last face of limiting plate 19 with down the terminal surface respectively with under the bracing piece 10 with the grooved underside offsets, limiting plate 19 can insert or take out, fills up clearance 20 after inserting for can not rotate between horizontal pole 1 and the bracing piece 10, in order to guarantee the stability of being connected between bracing piece 10 and the horizontal pole 1, then make after taking out can the free rotation between horizontal pole 1 and the bracing piece 10, convenient folding accomodating.

As shown in fig. 1, 2 and 3, preferably, the connecting rods 11 are provided with a plurality of slots 21 for the two ends of the movable rod 12 to be respectively clamped, and the two ends of the movable rod 12 are clamped in the slots 21 of the two connecting rods 11, so that the movable rod 12 is installed and can be conveniently detached; keep away from in the first pole section 13 fixedly connected with stopper 22 on the one end inner wall of connecting rod 11, second pole section 14 is kept away from the one end of bracing piece 10 is inserted in the first pole section 13, and sunken being provided with confession on the second pole section 14 the gliding spacing groove 23 of stopper 22, stopper 22 can slide at spacing groove 23 and can prevent that second pole section 14 from being pulled out in first pole section 13, guarantee connection between the two, prevent to break away from completely.

As shown in fig. 1 and 2, preferably, the cross section of each of the first rod segment 13 and the second rod segment 14 is square, and the second rod segment 14 further includes a clamping segment 24 having the same size as the first rod segment 13 and far away from the first rod segment 13, so that the clamping between the movable rod 12 and the connecting rod 11 can be better realized.

As shown in fig. 2 and 4, preferably, it is right still to be provided with on the bracing piece 10 the supporting shoe 25 that the connecting rod 11 both ends supported, wherein the up end upper recess of supporting shoe 25 is provided with the wedge groove fixedly connected with can imbed wedge 26 in the wedge groove on the connecting rod 11, and the tip of wedge 26 sets up down, can conveniently realize that wedge 26 card goes into or takes out the wedge groove, the side of supporting shoe 25 still fixedly connected with connecting block 27, just be provided with the card hole that supplies connecting block 27 card to go into on the bracing piece 10, connecting block 27 card goes into the card hole and realizes being connected between supporting shoe 25 and the bracing piece 10, and the going on of convenient dismantlement, then can realize the joint between connecting rod 11 and the bracing piece 10 in the cooperation through wedge 26 and wedge groove.

As shown in fig. 1 and 5, preferably, similar to the directional wheel set 5, the universal wheel set 4 includes a second L-shaped mounting rod 28 rotatably connected to the vertical rod 2, the second L-shaped mounting rod 28 includes a second vertical section 29 fixedly connected to the vertical rod 2 and a second horizontal section 31 located below the vertical rod 2 and rotatably connected to a second roller 30, and the second roller 30 rolls with the second horizontal section 31 as an axis; the transverse rod 1 is fixedly connected with an installation sleeve 32, and the second vertical section 29 is rotatably connected with the installation sleeve 32, so that free rotation of the universal wheel set 4 is realized, and the steering function of the transfer trolley is ensured.

As shown in fig. 5 and 6, preferably, the diameter of the first roller 8 is larger than that of the second roller 30, and the lower edges of the first roller and the second roller are in the same horizontal plane, the smaller second roller 30 makes the bearing weight smaller than that of the larger first roller 8, so that the second roller 30 is arranged not to block the steering process, but can also prevent the first roller 8 from always being in the steering process (when the steering process is needed, a force for changing the direction needs to be applied, and the acting force can overcome the friction force between the second roller 30 and the ground to enable the second roller 30 and the first roller 8 to rotate together, and when the acting force is not applied, the second roller 30 can prevent the first roller 8 from rotating to prevent the transfer trolley from steering disorderly);

the first roller 8 and the second roller 30 both comprise a roller 33 rotationally connected with the first horizontal section 9 or the second horizontal section 31, and a nylon layer 34 wrapped on the outer wall of the roller 33, the nylon layer 34 is arranged to enable the first roller 8 or the second roller 30 to have certain friction resistance, wherein the nylon layer 34 is provided with a plurality of first through holes 35 axially distributed along the roller 33, and a plurality of second through holes 36 communicated with each first through hole 35 and radially extending to the outer wall of the nylon layer 34 along the roller 33; the structure is characterized by further comprising a plurality of third through holes 37 which are arranged between two adjacent second through holes 36 and connected with each other, the arrangement of the first through holes 35, the second through holes 36 and the third through holes 37 enables network-shaped drainage channels to be formed in the nylon layer 34, and the drainage channels can enable water around the first idler wheel 8 and the second idler wheel 30 to pass through when the transfer trolley moves on a wading ground, so that the influence on the upper layer structure of the transfer trolley caused by upward splashing of the water is prevented, and meanwhile, the first idler wheel 8 and the second idler wheel 30 can have certain elasticity due to the existence of the drainage channels, and a certain silencing effect is achieved.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. A foldable transfer trolley comprises a bottom frame surrounded by two cross rods and two vertical rods, and four universal wheel sets respectively mounted at four corners of the bottom frame, and is characterized in that grooves are axially formed in the cross rods, two ends of each cross rod are respectively and rotatably connected with supporting rods capable of being clamped into the grooves, connecting rods are clamped between every two adjacent supporting rods on different cross rods, and the connecting rods are located right above the vertical rods; the movable rod comprises a hollow first rod section and a second rod section which is arranged in a drawing manner with the first rod section; the connecting rods and the movable rods clamped with the connecting rods form a supporting grid, and the supporting grid is divided into two layers which are distributed up and down; the supporting rod is also clamped with a first fixing frame and a second fixing frame which are positioned at the upper end and the lower end of the supporting rod, wherein a supporting mesh cloth is fixedly connected in the second fixing frame;

the directional wheel set is connected with the cross rod and positioned at the middle section of the cross rod; the directional wheel set comprises a first L-shaped mounting rod, the first L-shaped mounting rod comprises a first vertical section fixedly connected with the cross rod and a first horizontal section which is positioned below the cross rod and is rotatably connected with a first roller, and the first roller rolls by taking the first horizontal section as an axial lead;

the universal wheel set comprises a second L-shaped mounting rod which is rotationally connected with the vertical rod, the second L-shaped mounting rod comprises a second vertical section which is fixedly connected with the vertical rod and a second horizontal section which is positioned below the vertical rod and is rotationally connected with a second roller, and the second roller rolls by taking the second horizontal section as an axial lead;

the diameter of the first roller is larger than that of the second roller, and the lower edges of the first roller and the second roller are positioned on the same horizontal plane; the first idler wheel and the second idler wheel respectively comprise a roller which is rotationally connected with the first horizontal section or the second horizontal section, and a nylon layer which is wrapped on the outer wall of the roller, wherein a plurality of first through holes which are distributed along the axial direction of the roller and a plurality of second through holes which are communicated with each first through hole and extend to the outer wall of the nylon layer along the radial direction of the roller are arranged on the nylon layer; the first through hole is arranged between the two adjacent second through holes and is connected with the first through hole.

2. The foldable transfer trolley according to claim 1, wherein two ends of the cross bar are fixedly connected with a rotating shaft in the groove respectively, the supporting bar is rotatably connected with the rotating shaft, when the supporting bar rotates to a right angle with the cross bar, a gap is formed between the lower end surface of the supporting bar and the bottom surface of the groove, the foldable transfer trolley further comprises a limiting plate inserted into the gap from the outside of the groove, and the upper plate surface and the lower plate surface of the limiting plate respectively abut against the lower end surface of the supporting bar and the bottom surface of the groove.

3. The foldable transfer trolley according to claim 1, wherein the connecting rod is provided with a plurality of slots for the movable rod to be clamped, the inner wall of one end of the first rod section, which is far away from the connecting rod, is fixedly connected with a limiting block, one end of the second rod section, which is far away from the supporting rod, is inserted into the first rod section, and the second rod section is provided with a limiting groove for the limiting block to slide in a concave manner.

4. A collapsible transfer trolley according to claim 3 wherein the first and second sections are square in cross-section and the second section further comprises a clamping section of the same size as the first section and remote therefrom.

5. The foldable transfer trolley according to claim 1, wherein the support rod is further provided with a support block for supporting two ends of the connection rod, wherein a wedge-shaped groove is concavely formed on an upper end surface of the support block, a wedge-shaped block capable of being embedded into the wedge-shaped groove is fixedly connected to the connection rod, a connection block is further fixedly connected to a side surface of the support block, and a clamping hole for the connection block to be clamped is formed in the support rod.

6. The foldable transfer trolley according to claim 1, wherein the cross bar is fixedly connected with a mounting sleeve, and the second vertical section is rotatably connected with the mounting sleeve.