CN111038561A

CN111038561A - Novel luggage cart

Info

Publication number: CN111038561A
Application number: CN201911357864.8A
Authority: CN
Inventors: 邓建文
Original assignee: Wen Fa Wang
Current assignee: Wen Fa Wang
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-04-21
Anticipated expiration: 2039-12-25
Also published as: CN111038561B

Abstract

The invention discloses a novel luggage van, which comprises a carrying support for carrying an object plate, a panel, trundles and a pushing hand, wherein the pushing hand is connected with the carrying support through a hinged support and can be folded on the carrying plate; the pushing handle comprises an inner sleeve and an outer sleeve which can stretch, and a telescopic locking mechanism is arranged between the two parallel outer sleeves; the telescopic locking mechanism is formed by combining an unlocking part, a bolt, a small spring, a button and a Z-shaped convex hook; the hinge seat is L-shaped. The folding trolley has a simple, compact and reasonable integral structure, and can be folded into a horizontal whole by adopting a unique telescopic locking mechanism, an automatic locking mechanism and the like while folding the push handle, so that the occupied space is small and the carrying is convenient.

Description

Novel luggage cart

Technical Field

The invention relates to the technical field of carrying equipment, in particular to a novel luggage van.

Background

The push-type luggage barrow commonly used in the market at present comprises a push handle, a carrying plate and trundles, wherein the trundles are fixed below the carrying plate, the push handle is arranged on the carrying plate and is level with the waist of a person, and the push handle is simple in structure, large in size and inconvenient to carry.

However, some foldable hand-pushed luggage carts only fold the pushing hands on the carrying plate, but cannot fold the casters in the carrying plate at the same time, and the folding volume cannot be optimized; in addition, when the pushing handle is folded into the side of the bracket through gear transmission, the caster wheel is folded in the bracket at the same time, but the structure is folded through meshing transmission, so that after the pushing handle is unfolded, the caster wheel swings left and right, the tooth sheets cannot be reliably meshed, and the tooth sheets are easy to damage; in addition, the trolleys have the problems of small bearing capacity, unstable and easy deflection of the trundles, inconvenient use and the like in the use process.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, the trolley is small in bearing capacity, the trundles are unstable and easy to deflect, and the trolley is not convenient to use.

In order to achieve the purpose, the invention adopts the following technical scheme:

a novel luggage cart comprises a carrying support for carrying an object plate, a panel, trundles and a pushing handle which is connected with the carrying support through a hinged support and can be folded on the carrying plate, wherein the carrying support comprises two parallel support pipes and hardware welded at the pipe end of the support, the trundles are fixed on a rotating sleeve piece which can be sleeved on the support pipes through the hardware, and the two tail ends of each support pipe are connected with the hinged support through the hinged support; the pushing handle comprises an inner sleeve and an outer sleeve which can stretch, and a telescopic locking mechanism is arranged between the two parallel outer sleeves; the telescopic locking mechanism is formed by combining an unlocking part, a bolt, a small spring, a button and a Z-shaped convex hook; the hinge seat is L-shaped, the two sides of the hinge seat are provided with arc-shaped sliding grooves, and the hinge seat is internally provided with an automatic locking mechanism which can be linked with the telescopic locking mechanism; the support intraductal transmission pipe that is equipped with, be equipped with the first lockpin and the second lockpin of inlay card in hollow track on the transmission pipe, both keep a definite distance apart and mutually perpendicular, the pipe wall is opened has the gliding opening of confession first lockpin, transmission pipe tip is equipped with the card and blocks in curved arc spout and can be at the gliding round pin post of this spout.

Preferably, the rotating sleeve comprises a rotating base, a rotating base and a rotating sleeve seat, wherein two axially symmetrical spiral hollow tracks are arranged on the inner wall of the rotating base, and a straight groove is formed in the tail part of each hollow track for the first locking pin to slide into the hollow tracks and be clamped into the straight groove for locking; the rotating base is of a hollow tubular structure, two clamping grooves are symmetrically formed in one end of the rotating base, a second lock pin is clamped and locked, and the rotating base is combined with the rotating base and sleeved into the rotating sleeve base to be combined into a whole; the bottom of the rotating sleeve is provided with a notch for the lug boss at the front end of the bottom of the twisting seat to be clamped and fixed.

Preferably, the automatic locking mechanism consists of a chute, an L-shaped lock seat, a lock column, a transmission plate, a reset sleeve, a spring, a connecting nail and a limiting pipe; wherein, the two side surfaces of the L-shaped lock seat are provided with chutes, and the lower part of the L-shaped lock seat is arranged in a sliding groove at the bottom of the twisting seat and can slide back and forth to form a movable connection only with the freedom degree of movement along the axial direction of the transmission pipe; a lock column is arranged in the chute and can pass through the chute to be connected with the transmission plate; the transmission plate is arranged on a resetting position with a through hole on the outer wall and can slide up and down along the through hole of the resetting sleeve; the reset sleeve is fixed at the lower end part of the outer sleeve, and a spring, a connecting nail and a limiting pipe are sequentially arranged from bottom to top to form a linkage locking mechanism which automatically pushes upwards in a normal state.

Preferably, the telescopic locking mechanism is a horizontal cross bar, is positioned between two parallel outer sleeves and comprises an unlocking part, a bolt, a small spring, a button and a Z-shaped convex hook; wherein the middle part is provided with a button, the front upper end is provided with a Z-shaped convex hook, the lower end is provided with a small spring, and the two sides are connected with bolts.

Preferably, the panel is provided with a bayonet which is buckled with the Z-shaped convex hook, and the position of the bayonet corresponds to the position of the button when the pushing handle is folded on the panel.

Preferably, the hardware is provided with an opening for the second lock pin to slide.

Preferably, the upper end of the limiting strip is provided with a limiting pin and is movably connected with the inner sleeve, and the lower end of the limiting strip is indirectly connected with the transmission plate after penetrating through a through hole in the inner plug at the bottom of the inner sleeve.

Has the advantages that:

1. the folding trolley has a simple, compact and reasonable integral structure, and can be folded into a horizontal whole while folding the push handle by adopting a unique telescopic locking mechanism, an automatic locking mechanism and the like, so that the occupied space is small and the carrying is convenient;

2. after the luggage barrow is completely unfolded or folded, the phenomenon that the caster is bent and the like due to overweight bearing is avoided, and the luggage barrow is safe and reliable;

3. the multiple locking mechanisms in the invention ensure that all the parts are stably connected, and the problem of front-back and left-right shaking can not occur when the locking mechanism is used.

Drawings

FIG. 1 is a schematic diagram of the general structure of the present invention;

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

FIG. 3 is a schematic view of an automatic lock mechanism of the present invention;

FIG. 4 is a schematic view of the deployed configuration of the reduction tube of the present invention;

FIG. 5 is a fully collapsed configuration of the present invention;

FIG. 6 is an exploded perspective view of the present invention;

FIG. 7 is a schematic view of the drive tube of the present invention;

FIG. 8 is a schematic view of the structure of the rotating sleeve of the present invention;

FIG. 9 is a schematic view of a notch of the present invention;

fig. 10 is a collapsed perspective view of the present invention;

FIG. 11 is a cross-sectional view of a pusher of the present invention;

fig. 12 is a schematic view of a panel and a bayonet of the present invention.

In the figure: 0-fulcrum; 00-a limit pin; 1-carrying support; 11-a stent tube; 2-pushing hands; 21-inner sleeve; 21 a-inner plug; 22-outer sleeve; 3-a caster wheel; 4-rotating the sleeve; 4 a-a rotating base; 4 b-a rotating seat; 4 c-rotating the sleeve seat; 41-hollow rail; 42-straight groove; 44-notch; 5-a transmission pipe; 51-a first detent; 52-a second detent; 6-arc chute; 7-a twisting seat; 8-pin column; 9-a telescopic locking mechanism; 91D-plug pin; 92A-button; 92-unlocking; a 92B-Z-shaped convex hook; 92C-small spring; 10-boss; 11B-opening; 12-a panel; 12 a-bayonet; 13-hardware; 13A-latch opening; 15-automatic locking mechanism; 150-chute; 151-L shaped lock seat; 152-a lock cylinder; 153-a drive plate; 154-a reduction sleeve; 156-connecting nails; 157-limit tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-12, a novel luggage van comprises a carrying support 1 for carrying an object plate, a panel 12, a caster wheel 3 and a push handle 2 connected by a hinged support 7 and foldable on the carrying plate, wherein the carrying support 1 comprises two parallel support tubes 11 and 4 hardware pieces 13 welded at the ends of the support tubes 4, the caster wheel 3 is fixed on a rotating sleeve piece 4 capable of being sleeved on the support tubes 11 by the hardware pieces 13, and the two tail ends of the support tubes are connected with the hinged support 7 through a fulcrum 0;

in this embodiment, the pushing handle 2 comprises a telescopic inner sleeve 21 and an outer sleeve 22, and a telescopic locking mechanism 9 is arranged between the two parallel outer sleeves 22; when the pushing handle 2 is rotated to be folded on the carrying support 1, the arc-shaped sliding grooves 6 on two sides of the hinged support 7 horizontally move the pushing pin 8 and the transmission pipe 5, the first locking pin 51 on the transmission pipe 5 drives the rotating sleeve 4 to rotate around the support pipe 11, and the trundles 3 connected with the rotating sleeve 4 automatically and synchronously fold inwards by 90 degrees towards the support pipe 11;

in this embodiment, the telescopic locking mechanism 9 is formed by combining an unlocking knob 92, a bolt 91D, a small spring 92C, a button 92A and a Z-shaped convex hook 92B;

in the embodiment, the hinge base 7 is L-shaped, the two sides of the hinge base are provided with arc-shaped sliding grooves 6, and the inside of the hinge base is provided with an automatic locking mechanism 15 which can be linked with the telescopic locking mechanism 9;

in this embodiment, the support tube 11 is provided with the transmission tube 5 therein, the transmission tube 5 is provided with the first lock pin 51 and the second lock pin 52 which are embedded in the hollow track, the first lock pin 51 and the second lock pin 52 are spaced at a certain distance and are perpendicular to each other, the tube wall is provided with an opening 11B through which the first lock pin 51 can slide, and the end of the transmission tube 5 is provided with the pin 8 which is clamped in the curved sliding groove 6 and can slide in the sliding groove.

In this embodiment, the rotation kit 4 includes a rotation base 4a, a rotation base 4b and a rotation sleeve base 4c, wherein the inner wall of the rotation base 4a is provided with two axially symmetric spiral hollow tracks 41, and the tail of the hollow track 41 is provided with a straight groove 42 for the first lock pin 51 to slide into the hollow track 41 and to be locked by being clamped into the straight groove 42; the rotating seat 4b is a hollow tubular structure, one end of the rotating seat is symmetrically provided with two clamping grooves 43 for clamping and locking the second lock pin 51, and the rotating seat 4b is combined with the rotating base 4a and sleeved into the rotating sleeve seat 4c to be combined into a whole;

in this embodiment, the bottom of the rotating sleeve 4 is provided with a notch 44 for the boss 10 at the front end of the bottom of the hinge base 7 to be clamped and fixed; the boss 10 is beneficial to more tightly connecting the trundle 3 with the support tube 11 when the pushing handle 2 is in an unfolding state, so that the trundle 3 is prevented from loosening, and the phenomenon that the pushing handle 22 is close to the object carrying support tube 11 due to the fact that the trundle 3 is folded due to the fact that the object carrying is too heavy is avoided;

in this embodiment, the automatic locking mechanism 15 is composed of a chute 150, an L-shaped lock seat 151, a lock cylinder 152, a driving plate 153, a reset sleeve 154, a spring 155, a connecting nail 156 and a limit pipe 157; wherein, the two sides of the L-shaped lock seat 151 are provided with chutes 150, and the lower part is arranged in a sliding groove at the bottom of the twisting seat 7 and can slide back and forth to form a movable connection only with freedom of movement along the axial direction of the transmission pipe 5;

in this embodiment, a lock post 152 is disposed in the chute 150, and the lock post can pass through the chute 150 to be connected with the transmission plate 153;

in this embodiment, the driving plate 153 is mounted on the reset sleeve 154 having a through hole on the outer wall thereof, and can slide up and down along the through hole of the reset sleeve;

in this embodiment, the reset sleeve 154 is fixed at the lower end of the outer sleeve 22, and is provided with a spring 155, a connecting nail 156 and a limiting tube 157 in sequence from bottom to top to form a normally automatic upward ejection linkage locking mechanism. The return tube 153 bears the upward acting force of the small spring 155 in a normal state, and the L-shaped lock holder 151 moves forward under the action of the lock cylinder 152, the return tube 153 and the chute 150, so that the lock holder 151 is in a locked state in the normal state;

in this embodiment, when the pushing handle 2 rotates from the folded state to the opened state, the pin 8 moves in the curved sliding groove 6 to push the locking seat 151 to move backward, when the pushing handle reaches the fully opened state, the L-shaped locking seat 151 moves forward under the action of the spring 155, the pin 8 is locked at the L-shaped corner of the L-shaped locking seat 151, that is, the hinged support 7 and the pushing handle 2 connected with the hinged support are fixed under the action of the fulcrum 0 and the pin 8, and the hinged support 7 cannot rotate around the fulcrum 0, so that the pushing handle 2 and the object carrying bracket 1 are rigidly connected;

in this embodiment, the retractable locking mechanism 9 is a horizontal cross bar, is located between two parallel outer sleeves 22, and comprises an unlocking part 92, a bolt 91D, a small spring 92C, a button 92A and a Z-shaped convex hook 92B; wherein the middle part is provided with a button 92A, the front upper end is provided with a Z-shaped convex hook 92B, the lower end is provided with a small spring 92C, and the two sides are connected with a bolt 92D.

In this embodiment, the panel 12 is provided with a bayonet 12A for being buckled with the Z-shaped convex hook 92B, and the position of the bayonet corresponds to the position of the button 92A when the pushing handle 2 is folded on the panel 12; when the luggage barrow is folded, the push handle 2, the support tube 11, the panel 12 and the caster 3 can be folded into a plane whole through the Z-shaped convex hook 92B.

In this embodiment, the hardware 13 is provided with an opening 13A for the second lock pin 52 to slide, so as to allow the second lock pin 52 to move;

in this embodiment, the upper end of the limiting strip 157 is provided with a limiting pin 00 and is movably connected with the inner sleeve 21, and the lower end of the limiting strip passes through a through hole on the inner plug 21a at the bottom of the inner sleeve 21 and is indirectly connected with the driving plate 153. When the hand 2 is rotated and opened, the inner sleeve 21 moves upwards, the inner plug 22a connected to the lower end part of the inner sleeve moves upwards at the same time, when the inner sleeve 21 and the outer sleeve 22 are locked by the telescopic locking mechanism 92 when the hand rises to the working height, the reset tube 153 cannot move downwards under the blocking action of the limit pin 00 on the limit tube 157, so that the lock base 151 cannot move backwards, namely, the lock base 6 locks the pin 8 at the L-shaped corner, and the hinge base 7 is in a safe locking state.

In this embodiment, as shown in fig. 4, the caster 3 and the push handle 22 are both in an open state, the first lock pin 51 on the transmission tube 5 is locked in the straight groove 42 on the rotation kit 4, the second lock pin 52 is locked in the lock groove 43 on the rotation kit 4, the bayonet 44 on the rotation kit 4 is mutually engaged with the boss 10 on the hinge base 7, and the pin 8 is locked at the L-shaped corner of the lock base 151, so that the hinge base 7 cannot rotate around the fulcrum 0; the reset tube 153 of the automatic locking mechanism 15 cannot move downward under the combined action of the telescopic locking device of the pushing handle and the limit pin 00 on the limit tube 157, so that the lock base 151 cannot move backward along the axial direction of the transmission tube 5, and a stable connection is formed among the pushing handle 22, the bracket tube 11 and the caster 3 in an open state.

In this embodiment, when the handle 2 needs to be rotated and folded above the luggage carrier support tube 11, the telescopic locking mechanism 9 between the inner sleeve 21 and the outer sleeve 22 is firstly released, so that the inner sleeve 21 is contracted downwards;

in this embodiment, as shown in fig. 6, when a force acts on the driving plate 153 from the bottom of the inner sleeve 21, the lock base 151 moves backward by the cooperation of the lock post 152 on the driving plate 153 and the inclined slot 150, so that the pin 8 on the driving tube 5 is separated from the L-shaped corner of the lock base 151, and the lock base 151 unlocks the hinge base 7;

in this embodiment, as shown in fig. 7, when the pushing handle 2 is pressed against the carrying support tube 11, the bayonet 44 on the rotating sleeve 4 is disengaged from the boss 10 on the hinge base 7, the pin 8 at the end of the driving tube 5 slides in the curved sliding slot 6 of the hinge base 7, so that when the pushing handle 2 is pushed, the hinge base 7 presses the driving pipe 5 to move forward, the second lock pin 52 is disengaged from the catch groove 43, the first lock pin 51 is disengaged from the straight groove 42, at the same time as the first latch 51 on the driving tube 5 is engaged in the spiral hollow track 41 of the rotation kit 4, so that as drive tube 5 continues to be forced forward, helical hollow track 41 of swivel assembly 4 rotates relatively about first latch 51, which is achieved in this way that push 22 pushes drive tube 5 to rotate caster 3 attached to swivel assembly 4, thereby realizing that the caster wheel 3 is automatically folded below the luggage carrier bracket pipe 11 when the pushing handle 2 is folded. When the pushing handle 2 is rotated downward to a certain angle, the locking seat 151 automatically moves forward by the small spring 155 when the force pressing on the pushing handle 2 is released. Upon opening, the lock housing 151 automatically moves rearward under the force of the pin 8.

The working process of opening the luggage van is reverse to the above process.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a novel luggage van, is including carrying thing support (1), panel (12), truckle (3) and connecting and can folding in pushing hands (2) on carrying the thing board through free bearing (7) that are used for carrying the thing board, its characterized in that: the carrier support (1) comprises two parallel support pipes (11) and 4 hardware pieces (13) welded at the 4 ends of the support pipes, the casters (3) are fixed on a rotating sleeve (4) which can be sleeved on the support pipes (11) by the hardware pieces (13), and the two tail ends of the support pipes are connected with the hinge base (7) through pivots (0); the push handle (2) comprises a telescopic inner sleeve (21) and an outer sleeve (22), and a telescopic locking mechanism (9) is arranged between the two parallel outer sleeves (22); the telescopic locking mechanism (9) is formed by combining an unlocking part (92), a bolt (91D), a small spring (92C), a button (92A) and a Z-shaped convex hook (92B); the hinge seat (7) is L-shaped, arc-shaped sliding grooves (6) are formed in two sides of the hinge seat, and an automatic lock mechanism (15) is arranged in the hinge seat and can be linked with the telescopic locking mechanism (9); support pipe (11) in be equipped with transmission pipe (5), be equipped with on transmission pipe (5) and inlay card first lockpin (51) and second lockpin (52) in hollow track, both keep apart certain distance and mutually perpendicular, the pipe wall is opened has opening (11B) that can supply first lockpin (51) gliding, transmission pipe (5) tip is equipped with card and can slides in curved arc spout (6) and round pin post (8) in this spout.

2. The novel luggage cart of claim 1, wherein: the rotating sleeve (4) comprises a rotating base (4a), a rotating base (4b) and a rotating sleeve seat (4c), wherein two spiral hollow tracks (41) which are axially symmetrical are arranged on the inner wall of the rotating base (4a), and a straight groove (42) is formed in the tail part of each hollow track (41) and used for enabling a first lock pin (51) to slide into each hollow track (41) and be clamped into the straight groove (42) for locking; the rotating seat (4b) is of a hollow tubular structure, two clamping grooves (43) are symmetrically formed in one end of the rotating seat for clamping and locking the second lock pin (51), and the rotating seat (4b) is combined with the rotating base (4a) and sleeved into the rotating sleeve seat (4c) to be combined into a whole; the bottom of the rotating sleeve member (4) is provided with a notch (44) for the lug boss (10) at the front end of the bottom of the twisting seat (7) to be clamped and fixed.

3. The novel luggage cart of claim 1, wherein: the automatic lock mechanism (15) consists of a chute (150), an L-shaped lock seat (151), a lock cylinder (152), a transmission plate (153), a reset sleeve (154), a spring (155), a connecting nail (156) and a limiting pipe (157); wherein, the two side surfaces of the L-shaped lock seat (151) are provided with chutes (150), and the lower part of the L-shaped lock seat is arranged in a sliding groove at the bottom of the twisting seat (7) and can slide back and forth to form a movable connection only with the freedom degree of axial movement along the transmission pipe 5; a lock column (152) is arranged in the chute (150), and the lock column can pass through the chute (150) to be connected with the transmission plate (153); the transmission plate (153) is arranged on a resetting sleeve position (154) with a through hole on the outer wall and can slide up and down along the through hole of the resetting sleeve; the reset sleeve (154) is fixed at the lower end of the outer sleeve (22), a spring (155), a connecting nail (156) and a limiting pipe (157) are sequentially arranged from bottom to top, and a linkage locking mechanism which can automatically push upwards (bounce) in a normal state is formed.

4. The novel luggage cart of claim 1, wherein: the telescopic locking mechanism (9) is a horizontal cross bar, is positioned between two parallel outer sleeves (22), and comprises an unlocking part (92), a bolt (91D), a small spring (92C), a button (92A) and a Z-shaped convex hook (92B); wherein the middle part is provided with a button (92A), the front upper end is provided with a Z-shaped convex hook (92B), the lower end is provided with a small spring (92C), and the two sides are connected with a bolt (92D).

5. The novel luggage cart of claim 1, wherein: the panel (12) is provided with a bayonet (12A) which is buckled with the Z-shaped convex hook (92B), and the position of the bayonet corresponds to the position of the button (92A) when the push handle (2) is folded on the panel (12).

6. The novel luggage cart of claim 3, wherein: an opening (13A) for the second lock pin (52) to slide is formed in the hardware (13).

7. The novel luggage cart of claim 3, wherein: the upper end of the limiting strip (157) is provided with a limiting pin (00) and is movably connected with the inner sleeve (21), and the lower end of the limiting strip is indirectly connected with the transmission plate (153) after passing through a through hole on an inner plug (21a) at the bottom of the inner sleeve (21).