CN215663487U - Folding handcart - Google Patents

Abstract

The utility model discloses a folding trolley, which comprises a trolley plate, a push rod and rail wheels, wherein the trolley plate comprises a middle plate body, a first plate body hinged to one side of the middle plate body and a second plate body hinged to the other side of the middle plate body; the vehicle board has an unfolding state and a folding state, and when the first board body and the second board body are folded to be positioned at the same horizontal plane with the middle board body, the vehicle board is in the unfolding state; when the first plate body and the second plate body are turned upwards to be perpendicular to the middle plate body and are connected with each other in a matching mode through the first connecting piece and the second connecting piece, the first plate body and the second plate body are fixedly connected, and the vehicle plate is folded. When the foldable trolley is folded upwards and folded and unfolded downwards, the middle plate bodies are all on the horizontal plane, the trolley does not need to be turned on one side, the foldable trolley is easy to fold and unfold and can be folded and unfolded by two persons at most.

Description

Folding handcart

Technical Field

The utility model relates to the technical field of track maintenance equipment, in particular to a folding trolley.

Background

Along with the development of traffic, the use of rail transit is more and more frequent, and the construction development is more and more vigorous, and light rail construction is constantly increased, and simultaneously, the daily maintenance of rail equipment is required.

In order to facilitate the construction and daily maintenance, the conventional trolley capable of running on the track mainly comprises a trolley plate and track wheels which are rotatably connected below the trolley plate and matched with the track, and is very convenient for article transportation, time-saving and labor-saving.

The above described trolley still has the disadvantages: 1. due to the large volume, the storage space occupied by the vehicle body is too large. 2. The car body can not be folded, and is very difficult to pass through an elevator, a narrow road and the like, even can not pass through. 3. In the exhibition hall or the flat road surface, the hand can be lifted by a plurality of people, which is very laborious and has large manpower consumption.

To this end, the applicant disclosed a foldable track-mounted brake trolley (application No. CN2020211408871) comprising a board and a push rod, the board comprising a first board body and a second board body; the second plate body is equipped with two, and one of them side of every second plate body articulates respectively in two sides that first plate body is relative, turns over upward to be in same horizontal plane with first plate body through two second plate bodies respectively around the pin joint that corresponds, and then makes the sweep be the expansion state to and turn over down to be perpendicular with first plate body around the pin joint that corresponds respectively through two second plate bodies, and then make the sweep form fold condition.

When above-mentioned handcart is folding at every turn, all need turn on one's side the sweep or the lifting just can turn over the second plate body downwards, and the folding degree of difficulty is big, and needs many people cooperation just can accomplish, also faces the big problem of the degree of difficulty when expanding equally for folding, expand and all waste time and energy.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a folding trolley, which can be turned upwards to reduce the difficulty of folding and unfolding.

In order to achieve the purpose, the utility model provides a folding trolley, which comprises a trolley board, a push rod arranged above the trolley board and rail wheels arranged on two sides below the trolley board, wherein the trolley board comprises a middle board body, a first board body hinged to one side of the middle board body and a second board body hinged to the other side of the middle board body, a first connecting piece is arranged above the side part, far away from the middle board body, of the first board body, and a second connecting piece is arranged above the side part, far away from the middle board body, of the second board body;

the vehicle board has an unfolded state and a folded state, and when the first board body and the second board body are folded around a hinge point to be positioned at the same horizontal plane with the middle board body, the vehicle board is in the unfolded state; when the first plate body and the second plate body turn upwards around the hinge point to be perpendicular to the middle plate body, the first plate body and the second plate body are fixedly connected through the first connecting piece and the second connecting piece in a matched mode, and the vehicle plate is folded.

Based on the above, first plate body and second plate body level expand the back, and first plate body, second plate body and intermediate plate body form "a" style of calligraphy structure, and stretch across the slip through the rail wheel and place on two guide rails to realize normally carrying on. After the first plate body and the second plate body are turned upwards by an angle, the middle plate body, the first plate body and the second plate body form a U-shaped structure, so that the transverse width is greatly reduced. The storage space that the footboard took is littleer under fold condition, and it is easier through elevator or lane for overall movement is nimble more, convenient.

When the foldable trolley is folded upwards and folded and unfolded downwards, the middle plate bodies are all on the horizontal plane, the trolley does not need to be turned on one side, the foldable trolley is easy to fold and unfold and can be folded and unfolded by two persons at most.

In the above technical solution, the present invention may be further modified as follows.

Preferably, the push rod includes horizontal pole and two montants, horizontal pole fixed connection is in the upper end of two montants, and the lower extreme of two montants is fixed connection in one side of middle plate body respectively.

Preferably, the corners of the bottom surface of the middle plate body are provided with walking wheels, and the lowest points of the walking wheels are higher than the lowest points of the track wheels.

Preferably, the first connecting piece comprises a cylindrical rod body and a limiting sphere fixedly arranged at the upper end of the cylindrical rod body, and the radius of the limiting sphere is larger than that of the end face of the cylindrical rod body; the second connecting piece comprises a fixed seat, a sliding seat and an elastic locking assembly, the fixed seat is fixedly arranged on the second plate body, a first groove body is formed in one side part of the fixed seat, the sliding seat is slidably arranged on the side part of the fixed seat, which is provided with the first groove body, a second groove body matched with the first groove body and used for clamping the first connecting piece is formed in the side part, close to the first groove body, of the sliding seat, one end of the elastic locking assembly is connected with the fixed seat, and the other end of the elastic locking assembly is connected with the sliding seat; (ii) a

The elastic locking assembly is in a natural state, the first groove body and the second groove body are folded, the first connecting piece can be fixedly clamped between the first groove body and the second groove body at the moment, and the first groove body and the second groove body are separated when the elastic locking assembly is in a stretching state, and the first connecting piece can be separated from the first groove body and the second groove body.

Preferably, the port of the semi-spherical ball part of the first groove body and the second groove body is provided with a round angle.

Preferably, the elasticity is locked the subassembly and is included through-hole, blind hole, elastomer, end cap and pull rod, the bottom that the fixing base was run through to the through-hole level, the blind hole level is seted up and is close to the lateral part of first cell body in the sliding seat and coaxial with the through-hole, the end cap sets firmly the port department of keeping away from the blind hole in the through-hole, the one end of pull rod sets firmly in the blind hole, and in the through-hole was located in the other end slides, the elastomer was arranged in the through-hole, and both ends were connected with end cap, pull rod respectively, and the direction to keeping away from the through-hole promotes the sliding seat and can make pull rod synchronous motion, and the elastomer is tensile simultaneously, loosens the sliding seat, and the sliding seat receives the elastomer reset effect to remove to contradicting in the fixing base.

Preferably, an end cap is fixedly arranged at the end part of the pull rod, which is positioned at the through hole, and a stop ring is arranged at the port of the through hole, which is close to the blind hole.

Preferably, the sliding seat is provided with a handle on the side wall departing from the second groove body.

Preferably, each second connecting piece comprises two elastic locking assemblies arranged in parallel.

Preferably, the first plate body and the second body are hinged to the middle plate body through folding buckles.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below.

FIG. 1 is a schematic view of a foldable wagon according to an embodiment of the utility model when unfolded;

FIG. 2 is a schematic view of the first connector and the second connector of the cart of FIG. 1 shown in a collapsed configuration;

FIG. 3 is an internal schematic view of the second connector of FIG. 2;

fig. 4 is an internal schematic view of the spring capture assembly of fig. 3.

In the drawings, there is shown in the drawings,

the sliding plate comprises a push rod 1, a cross rod 11, a vertical rod 12, a rail wheel 2, a middle plate body 3, a first plate body 4, a second plate body 5, a folding buckle 6, a first connecting piece 7, a cylindrical rod body 71, a limiting ball body 72, a second connecting piece 8, a fixed seat 81, a first groove body 811, a through hole 812, a sliding seat 82, a second groove body 821, a blind hole 822, an elastic locking component 83, an elastic body 831, an end cap 832, a pull rod 833, a stop ring 834 and a handle 835.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

Referring to fig. 1 to 4, the present embodiment discloses a foldable trolley, which includes a board, a push rod 1 and a track wheel 2.

As shown in fig. 1, the sweep includes the intermediate plate body 3, the first plate body 4 and the second plate body 5, the first plate body 4 hinges in one side of the intermediate plate body 3, the second plate body 5 hinges in the opposite side of the intermediate plate body 3, the first plate body 4 and the second plate body 5 all adopt the punching plate of the rectangular structure aluminum alloy, and the intermediate plate body 3, the first plate body 4 and the second plate body 5 both ends flush.

A first connecting piece 7 is arranged above the side part of the first plate body 4 far away from the middle plate body 3, a second connecting piece 8 is arranged above the side part of the second plate body 5 far away from the middle plate body 3, the vehicle plate has an unfolding state and a folding state, and when the first plate body 4 and the second plate body 5 are folded around a hinge point to be positioned at the same horizontal plane with the middle plate body 3, the vehicle plate is in the unfolding state; when the first plate body 4 and the second plate body 5 turn up around the pin joint and turn over to be perpendicular with the middle plate body 3 to be connected through the cooperation of first connecting piece 7 and second connecting piece 8 and make first plate body 4 and second plate body 5 fixed connection, the sweep is fold condition.

The push rod 1 is located above the vehicle board, specifically, the lower end of the push rod 1 is fixedly arranged at one end of the middle board body 3, and the upper end of the push rod 1 is a hand-push end.

The below of plate body is located to rail wheel 2, specifically, rail wheel 2 is all installed to the edge of sweep, and rail wheel 2 is four promptly.

Based on the above, after the first plate body 4 and the second plate body 5 are horizontally unfolded, the first plate body 4, the second plate body 5 and the middle plate body 3 form a structure shaped like a Chinese character 'yi', and the rail wheels 2 stretch across and slide on the two guide rails, so that normal pushing is realized. After the first plate body 4 and the second plate body 5 are turned upwards by 90 degrees, the middle plate body 3, the first plate body 4 and the second plate body 5 form a U-shaped structure, so that the transverse width is greatly reduced. The storage space that the footboard took is littleer under fold condition, and it is easier through elevator or lane for overall movement is nimble more, convenient.

When the foldable trolley is folded upwards and folded and unfolded downwards, the middle plate body 3 is on the horizontal plane, the trolley does not need to be turned on one side, the foldable trolley is easy to fold and unfold and can be folded and unfolded by two persons at most.

In this embodiment, the push rod 1 includes a cross rod 11 and two vertical rods 12, the cross rod 11 is fixedly connected to the upper ends of the two vertical rods 12, the lower ends of the two vertical rods 12 are respectively fixedly connected to one side of the middle plate body 3, and the vertical rods 12 can be welded or connected to the connecting seat to be fixed on the middle plate body 3.

In this embodiment, the walking wheel (for showing in the figure) has all been installed to the edge of intermediate plate body 3 bottom surface, and the minimum point of walking wheel is higher than rail wheel 2's minimum to when avoiding walking on the track, the walking wheel touches other objects, and the walking wheel is including being located the universal wheel in intermediate plate body 3 bottom surface the place ahead and being located the fixed wheel at intermediate plate body 3 bottom surface rear, and the fixed wheel has limited slip function, can assist the handcart braking.

As shown in fig. 2 to 4, the first connecting member 7 includes a cylindrical rod 71 and a limiting ball 72 fixedly disposed at an upper end of the cylindrical rod 71, a radius of the limiting ball 72 is larger than a radius of an end surface of the cylindrical rod 71, the second connecting member 8 includes a fixing seat 81, a sliding seat 82 and an elastic locking component 83, the fixing seat 81 is fixedly disposed on the second plate 5, a first groove 811 is disposed at a side of the fixing seat 81, the sliding seat 82 is slidably disposed at a side of the fixing seat 81 where the first groove 811 is disposed, a second groove 821 matched with the first groove 811 and used for clamping the first connecting member 7 is disposed at a side of the sliding seat 82 close to the first groove 811, one end of the elastic locking component 83 is connected to the fixing seat 81, and the other end is connected to the sliding seat 82; (ii) a

The elastic locking component 83 has a natural state and a stretching state, when the elastic locking component 83 is in the natural state, the first groove body 811 and the second groove body 821 are folded, the first connecting piece 7 can be fixedly clamped between the first groove body 811 and the second groove body 821 at the moment, when the elastic locking component 83 is in the stretching state, the first groove body 811 is separated from the second groove body 821, and the first connecting piece 7 can be separated from the first groove body 811 and the second groove body 821.

In this embodiment the sum of the lengths of the first and second connectors 7, 8 is equal to the width of the intermediate panel 3 to accommodate the folded position of the trolley.

In this embodiment, when the cart is in the folded state, the first connecting member 7 is inserted into the surrounding groove formed by the first groove 811 and the second groove 821, and is naturally locked and fixed by the elastic locking component 83, and similarly, when the cart is in the unfolded state, the elastic locking component 83 is in the natural state, the first groove 811 and the second groove 821 are folded, and only when the first connecting member 7 is inserted into the second connecting member 8 or separated from the second connecting member 8, the elastic locking component 83 is stretched or pushed by external force to unfold.

In this embodiment, the elastic locking component 83 includes a through hole 812, a blind hole 822, an elastic body 831, an end cap 832 and a pull rod 833, the through hole 812 horizontally penetrates the bottom of the fixing seat 81, the blind hole 822 is horizontally disposed on a side portion of the sliding seat 82 close to the first groove 811 and is coaxial with the through hole 812, the end cap 832 is fixedly disposed at a port of the through hole 812 far from the blind hole 822, one end of the pull rod 833 is fixedly disposed in the blind hole 822, the other end of the pull rod 833 is slidably disposed in the through hole 812, the elastic body 831 is disposed in the through hole 812, and two ends of the elastic body 831 are respectively connected with the end cap 832 and the pull rod 833, the sliding seat 82 is pushed in a direction far from the through hole 812 to enable the pull rod 833 to synchronously move, the elastic body 831 stretches, the sliding seat 82 is loosened, and the sliding seat 82 moves to abut against the fixing seat 81 under the restoring action of the elastic body 831.

In this embodiment, the elastic body 831 is preferably a spring, and the elastic locking assembly 83 is expanded and contracted by the expansion and contraction of the spring, and when the elastic body 831 contracts, the first groove 811 and the second groove 821 are folded into a whole.

In this embodiment, an end cap 832 is fixedly disposed at an end of the pull rod 833 located at the through hole 812, a stop ring 834 is disposed at a port of the through hole 812 close to the blind hole 822, and the end cap 832 and the stop ring 834 cooperate to enable a sliding end of the pull rod 833 to slide in the through hole 812 and enable the pull rod 833 to have a guiding function.

In this embodiment, the port of the semi-spherical portion of the first groove 811 and the second groove 821 has a rounded corner, so that the first connecting member 7 can conveniently enter and exit the clamping groove formed by the first groove 811 and the second groove 821.

In this embodiment, the side wall of the sliding seat 82 facing away from the second groove 821 is provided with a handle 835, and the sliding seat 82 can be quickly separated from the fixed body by pulling the handle 835.

In this embodiment, each second connecting member 8 includes two elastic locking assemblies 83 arranged in parallel, and the clamping force of the second connecting member 8 can be uniform through the two elastic locking assemblies 83, so as to be beneficial to stably clamping the first connecting member 7.

In the present embodiment, the first plate 4 and the second plate 5 are hinged to the middle plate 3 by a folding buckle 6, the folding buckle 6 includes a hinge assembly and a bumper, the folding buckle 6 is the same as the folding buckle 6 of the foldable track-braking handcart (application number: CN2020211408871) disclosed by the applicant, except that the installation manner is reversed, the hinge portion of the hinge assembly of the disclosed foldable track-braking handcart is located below the bumper, and the hinge portion of the hinge assembly of the foldable track-braking handcart is located above the bumper.

To sum up, the folding handcart that this embodiment provided turns up when folding for need not turn on one's side when folding, its folding needs two people at most, and it is laborsaving to fold.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the utility model as defined in the appended claims. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.

Claims (10)

1. The utility model provides a foldable handcart, includes sweep, locates push rod (1) of sweep top and locate rail wheel (2) of sweep below both sides, its characterized in that:

the sweeping board comprises a middle board body (3), a first board body (4) hinged to one side of the middle board body (3) and a second board body (5) hinged to the other side of the middle board body (3), wherein a first connecting piece (7) is arranged above the side portion, far away from the middle board body (3), of the first board body (4), and a second connecting piece (8) is arranged above the side portion, far away from the middle board body (3), of the second board body (5);

the sweep is in an unfolded state and a folded state, and when the first plate body (4) and the second plate body (5) are turned over around the hinge point to be positioned at the same horizontal plane with the middle plate body (3), the sweep is in an unfolded state; when the first plate body (4) and the second plate body (5) turn upwards around the hinge point to be perpendicular to the middle plate body (3), and are connected with the second connecting piece (8) through the first connecting piece (7) in a matching way to enable the first plate body (4) to be fixedly connected with the second plate body (5), the vehicle plate is folded.

2. A foldable trolley according to claim 1, further comprising:

the push rod (1) comprises a cross rod (11) and two vertical rods (12), the cross rod (11) is fixedly connected to the upper ends of the two vertical rods (12), and the lower ends of the two vertical rods (12) are respectively and fixedly connected to one side of the middle plate body (3).

3. A foldable trolley according to claim 1 or claim 2, further comprising:

the corner of the bottom surface of the middle plate body (3) is provided with a traveling wheel, and the lowest point of the traveling wheel is higher than the lowest point of the track wheel (2).

4. A foldable trolley according to claim 1, further comprising:

the first connecting piece (7) comprises a cylindrical rod body (71) and a limiting ball body (72) fixedly arranged at the upper end of the cylindrical rod body (71), and the radius of the limiting ball body (72) is larger than that of the end face of the cylindrical rod body (71);

the second connecting piece (8) comprises a fixed seat (81), a sliding seat (82) and an elastic locking assembly (83), the fixed seat (81) is fixedly arranged on the second plate body (5), a first groove body (811) is formed in one side part of the fixed seat (81), the sliding seat (82) is slidably arranged on the side part of the fixed seat (81) provided with the first groove body (811), a second groove body (821) matched with the first groove body (811) to clamp the first connecting piece (7) is formed in the side part, close to the first groove body (811), of the sliding seat (82), one end of the elastic locking assembly (83) is connected with the fixed seat (81), and the other end of the elastic locking assembly is connected with the sliding seat (82);

the elastic locking assembly (83) is in a natural state and a stretching state, when the elastic locking assembly (83) is in the natural state, the first groove body (811) and the second groove body (821) are folded, the first connecting piece (7) can be fixedly clamped between the first groove body (811) and the second groove body (821), when the elastic locking assembly (83) is in the stretching state, the first groove body (811) is separated from the second groove body (821), and the first connecting piece (7) can be separated from the first groove body (811) and the second groove body (821).

5. A foldable trolley according to claim 4, further comprising:

the port of the semi-spherical part of the first groove body (811) and the second groove body (821) is provided with a round angle.

6. A foldable trolley according to claim 5, further comprising:

the elastic locking component (83) comprises a through hole (812), a blind hole (822), an elastic body (831), an end cap (832) and a pull rod (833), the through hole (812) horizontally penetrates through the bottom of the fixed seat (81), the blind hole (822) is horizontally arranged on the side part of the sliding seat (82) close to the first groove body (811) and is coaxial with the through hole (812), the end cap (832) is fixedly arranged at the port of the through hole (812) far away from the blind hole (822), one end of the pull rod (833) is fixedly arranged in the blind hole (822), the other end of the pull rod is arranged in the through hole (812) in a sliding manner, the elastic body (831) is arranged in the through hole (812), and both ends are respectively connected with the end cap (832) and the pull rod (833), the pull rod (833) can synchronously move by pushing the sliding seat (82) to the direction far away from the through hole (812), meanwhile, the elastic body (831) stretches to loosen the sliding seat (82), and the sliding seat (82) moves to be abutted against the fixed seat (81) under the reset action of the elastic body (831).

7. A foldable trolley according to claim 6, further comprising:

an end cap (832) is fixedly arranged at the end part of the pull rod (833) positioned at the through hole (812), and a stop ring (834) is arranged at the port of the through hole (812) close to the blind hole (822).

8. A foldable trolley according to claim 7, further comprising:

and a handle (835) is arranged on the side wall of the sliding seat (82) departing from the second groove body (821).

9. A foldable trolley according to claim 1, further comprising:

each second connecting piece (8) comprises two elastic locking components (83) which are arranged in parallel.

10. A foldable trolley according to claim 1, further comprising:

the first plate body (4) and the second body are hinged to the middle plate body (3) through folding buckles (6).

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