CN111038561B

CN111038561B - Novel luggage van

Info

Publication number: CN111038561B
Application number: CN201911357864.8A
Authority: CN
Inventors: 邓建文
Original assignee: Yangjiang Flywheel Metal Products Co ltd
Current assignee: Yangjiang Flywheel Metal Products Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2023-05-09
Anticipated expiration: 2039-12-25
Also published as: CN111038561A

Abstract

The invention discloses a novel luggage van, which comprises a carrying support for carrying a carrying plate, a panel, casters and a pushing handle which is connected 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 ends of the support pipes, the hardware is used for fixing the casters on a rotary sleeve piece which can be sleeved on the support pipes, and the two tail ends of the support pipes are connected with the hinged support through fulcrums; the push handle comprises a telescopic inner sleeve and an outer sleeve, and a telescopic locking mechanism is arranged between the two parallel outer sleeves; the telescopic locking mechanism is formed by combining unlocking, a bolt, a small spring, a button and a Z-shaped convex hook; the twisted seat is L-shaped. The invention has simple, compact and reasonable integral structure, adopts a unique telescopic locking mechanism, an automatic locking mechanism and the like, can fold the caster wheel when folding the pushing hand, and ensures that the caster wheel is stored as a horizontal integral body, thereby having small occupied space and convenient carrying.

Description

Novel luggage van

Technical Field

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

Background

The hand-push luggage barrow commonly used in the market at present consists of a push handle, a carrying plate and truckles, wherein the truckles are fixed below the carrying plate, the push handle is arranged on the carrying plate and is level with the waist of a person, the structure is quite simple, the volume is huge, and the carrying is inconvenient.

However, some folding hand-push 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 of the folding luggage carts still cannot be optimized; in addition, when the push handle is folded into the side of the bracket through gear transmission, the casters are simultaneously folded in the bracket, but because the structure is folded through meshing transmission, the casters shake left and right after being unfolded, so that the tooth sheets cannot be reliably meshed, and the tooth sheets are easy to damage; in addition, the hand trucks also have the problems of small bearing capacity, unstable casters, easy deflection, inconvenient use and the like in the using process.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, the trolley is unstable in bearing weight, easy to swing and inconvenient to use in the using process, and provides a novel luggage barrow.

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

the utility model provides a novel luggage van, includes the pushing hands that is used for carrying thing support, panel, truckle and through the hinged support connection and can fold in carrying thing board on the thing support, carry thing support include two parallel support pipes and a hardware of welding in the support pipe end, the hardware is fixed in the truckle on can the rotatory external member of cover on the support pipe, support pipe both ends are connected with the hinged support through the fulcrum; the push handle comprises a telescopic inner sleeve and an outer sleeve, and a telescopic locking mechanism is arranged between the two parallel outer sleeves; the telescopic locking mechanism is formed by combining unlocking, a bolt, a small spring, a button and a Z-shaped convex hook; the winch seat is L-shaped, arc-shaped sliding grooves are formed in two sides of the winch seat, and an automatic locking mechanism is arranged in the winch seat and can be linked with the telescopic locking mechanism; the support pipe in be equipped with the drive pipe, be equipped with first lockpin and the second lockpin of block in the cavity track on the drive pipe, both keep a distance and mutually perpendicular, the pipe wall is opened and is had the gliding opening of confession first lockpin, drive pipe tip is equipped with the card in curved spout and can be in the gliding round pin post of this spout.

Preferably, the rotating sleeve comprises a rotating base, a rotating seat and a rotating sleeve seat, wherein two spiral hollow rails axially symmetrical are arranged on the inner wall of the rotating base, and straight grooves are formed in the tail parts of the hollow rails for the first lock pins to slide into the hollow rails and be clamped into the straight grooves for locking; the rotary seat is in a hollow tubular structure, one end of the rotary seat is symmetrically provided with two clamping grooves for clamping and locking the second lock pin, and the rotary seat is combined with the rotary base and sleeved into the rotary sleeve seat to form a whole; the bottom of the rotary sleeve is provided with a notch for clamping and fixing the front end boss at the bottom of the winch seat.

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; the two side surfaces of the L-shaped lock seat are provided with inclined grooves, the lower part of the L-shaped lock seat is arranged in a sliding groove at the bottom of the winch seat and can slide back and forth, so that movable connection with only freedom of movement along the axial direction of the transmission tube is formed; a lock column is arranged in the chute and can penetrate through the chute to be connected with the transmission plate; the transmission plate device is arranged on the resetting position with the 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 is sequentially provided with a spring, a connecting nail and a limiting pipe from bottom to top to form a linkage locking mechanism capable of automatically ejecting upwards in a normal state.

Preferably, the telescopic locking mechanism is a horizontal cross rod and is positioned between the two parallel outer sleeves, and comprises unlocking, 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 of the button is provided with a Z-shaped convex hook, the lower end of the button is provided with a small spring, and the two sides of the button 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 hand 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 limit bar is provided with a limit pin and is movably connected with the inner sleeve, and the lower end of the limit bar passes through a through hole on the inner plug at the bottom of the inner sleeve and is indirectly connected with the transmission plate.

The beneficial effects are that:

1. the invention has simple, compact and reasonable integral structure, adopts a unique telescopic locking mechanism, an automatic locking mechanism and the like, can fold the caster wheel when folding the pushing hand, and enables the caster wheel to be stored as a horizontal integral body, thereby having small occupied space and convenient carrying;

2. after the luggage cart is completely unfolded or folded, the phenomenon of bending and the like of the casters caused by overload bearing can be avoided, so that the luggage cart is safe and reliable;

3. the multiple locking mechanism ensures that all parts are firmly connected, and the problem of shaking back and forth and left and right can not occur during use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

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

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

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

FIG. 7 is a schematic diagram of a drive tube according to the present invention;

FIG. 8 is a schematic view of a rotary sleeve according to the present invention;

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

FIG. 10 is a perspective view of the present invention;

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

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

In the figure: 0-fulcrum; 00-limiting pins; 1-a carrier rack; 11-a stent tube; 2-pushing hands; 21-an inner sleeve; 21 a-an inner plug; 22-an outer sleeve; 3-casters; 4-rotating the sleeve; 4 a-rotating the base; 4 b-a swivel base; 4c, rotating the sleeve seat; 41-hollow track; 42-straight grooves; 44-notch; 5-a drive tube; 51-a first locking pin; 52-a second locking pin; 6-arc chute; 7-a twisting seat; 8-pin; 9-a telescopic locking mechanism; 91D-latch; 92A-buttons; 92-unlocking; 92B-Z-shaped convex hooks; 92C-small springs; 10-a boss; 11B-opening; 12-panel; 12 a-bayonet; 13-hardware; 13A-a latch opening; 15-an automatic locking mechanism; 150-chute; 151-L lock base; 152-lock cylinder; 153-drive plate; 154-resetting sleeve; 156-connecting nails; 157-limiting tube.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Referring to fig. 1-12, a novel luggage barrow comprises a carrying bracket 1 for carrying a carrying plate, a panel 12, casters 3 and a pushing handle 2 which is connected through a hinged support 7 and can be folded on the carrying plate, wherein the carrying bracket 1 comprises two parallel bracket pipes 11 and 4 hardware 13 welded at the ends of the bracket pipes 4, the hardware 13 is used for fixing the casters 3 on a rotary sleeve 4 which can be sleeved on the bracket pipes 11, and the two ends of the bracket pipes are connected with the hinged support 7 through a fulcrum 0;

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

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

in the embodiment, the winch seat 7 is L-shaped, two sides are provided with arc sliding grooves 6, and an automatic locking mechanism 15 is arranged in the winch seat and can be linked with the telescopic locking mechanism 9;

in this embodiment, a driving tube 5 is disposed in a bracket tube 11, a first lock pin 51 and a second lock pin 52 which are clamped and embedded in a hollow track are disposed on the driving tube 5, the two lock pins are spaced a certain distance and are mutually perpendicular, an opening 11B for sliding the first lock pin 51 is formed in the tube wall, and a pin 8 which is clamped in a curved chute 6 and can slide in the chute is disposed at the end of the driving tube 5.

In this embodiment, the rotating sleeve 4 includes a rotating base 4a, a rotating base 4b and a rotating sleeve base 4c, wherein two axially symmetrical spiral hollow rails 41 are provided on the inner wall of the rotating base 4a, and a straight slot 42 is provided at the tail of the hollow rails 41 for the first lock pin 51 to slide into the hollow rails 41 and be locked by being locked in the straight slot 42; the rotating seat 4b is in 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 form a whole;

in this embodiment, a notch 44 is formed at the bottom of the rotary sleeve 4 for the boss 10 at the front end of the bottom of the hinge seat 7 to be clamped and fixed; the boss 10 is beneficial to the connection of the trundle 3 and the bracket tube 11 when the pushing handle 2 is in an unfolding state, prevents the trundle 3 from loosening, and avoids the phenomenon that the pushing handle 22 is closed to the object carrying bracket tube 11 due to the folding of the trundle 3 caused by overweight objects;

in this embodiment, the automatic locking mechanism 15 is composed of a chute 150, an L-shaped lock base 151, a lock post 152, a transmission plate 153, a reset sleeve 154, a spring 155, a connecting pin 156 and a limiting tube 157; wherein, the two sides of the L-shaped lock seat 151 are provided with the chute 150, and the lower part is arranged in the sliding groove at the bottom of the winch seat 7 and can slide back and forth, thus forming movable connection only with freedom of axial movement along the driving tube 5;

in the present 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 a transmission plate 153;

in this embodiment, the transmission plate 153 is mounted on the resetting position 154 with a through hole on the outer wall, and can slide up and down along the through hole of the resetting 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 from bottom to top in sequence, and forms a linkage locking mechanism capable of automatically ejecting upwards in a normal state. The reset tube 153 bears the upward acting force of the small spring 155 in a normal state, and meanwhile, the L-shaped lock base 151 moves forwards under the action of the lock post 152, the reset tube 153 and the chute 150, namely, the lock base 151 is in a locking state in the normal state;

in this embodiment, when the push handle 2 rotates from the folded state to the open state, the pin 8 moves in the curved chute 6 to push the unlocking seat 151 and moves the same backward, and when the push handle is in the fully open state, the L-shaped lock 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 lock seat 151, i.e. the hinge seat 7 and the push handle 2 connected thereto are fixed under the action of the fulcrum 0 and the pin 8, the hinge seat 7 cannot rotate around the fulcrum 0, so that the push handle 2 and the carrier bracket 1 are rigidly connected;

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

In this embodiment, the panel 12 is provided with a bayonet 12A that is snapped with the zigzag hook 92B, and the position of the bayonet corresponds to the position of the button 92A when the push handle 2 is folded onto the panel 12; after the luggage cart is folded, the push handle 2, the bracket tube 11, the panel 12 and the caster 3 can be folded into a plane whole by the Z-shaped convex hooks 92B.

In this embodiment, the hardware 13 is provided with an opening 13A for sliding the second lock pin 52, so that the second lock pin 52 can move;

in this embodiment, the upper end of the limiting bar 157 is provided with a limiting pin 00 and is movably connected with the inner sleeve 21, and the lower end of the limiting bar passes through a through hole on the inner plug 21a at the bottom of the inner sleeve 21 and is indirectly connected with the transmission plate 153. When the hand push 2 is rotated and opened, the inner sleeve 21 moves upward, the inner plug 22a connected to the lower end portion moves upward at the same time, and when the working height is raised, the inner sleeve 21 and the outer sleeve 22 are locked by the telescopic locking mechanism 92, the reset tube 153 cannot move downward under the blocking effect of the limiting pin 00 on the limiting tube 157, so that the lock base 151 cannot move backward, namely, the lock base 6 clamps 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 castor 3 and the pushing hand 22 are both in an open state, the first lock pin 51 on the transmission tube 5 is locked in the straight slot 42 on the rotating sleeve 4, the second lock pin 52 is locked in the clamping slot 43 on the rotating sleeve 4, the bayonet 44 on the rotating sleeve 4 is mutually clamped with the boss 10 on the hinged support 7, and the pin 8 is clamped at the L-shaped corner of the lock support 151, so that the hinged support 7 cannot rotate around the fulcrum 0; the reset tube 153 of the automatic locking mechanism 15 cannot move downwards under the combined action of the push handle telescopic locking device and the limit pin 00 on the limit tube 157, so that the lock base 151 cannot move backwards along the axial direction of the transmission tube 5, and a stable connection among the push handle 22, the bracket tube 11 and the castor 3 is ensured in the open state.

In this embodiment, when the push 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 released first, so that the inner sleeve 21 is retracted downward;

in this embodiment, as shown in fig. 6, when the force at the bottom of the inner sleeve 21 acts on the transmission plate 153, the lock base 151 is moved backward by the combined action of the lock post 152 and the chute 150 on the transmission plate 153, so that the pin 8 on the transmission tube 5 is separated from the L-shaped corner of the lock base 151, and the lock of the lock base 151 to the hinge base 7 is released;

in this embodiment, as shown in fig. 7, when the pushing handle 2 is pressed against the carrier tube 11, the bayonet 44 on the rotating sleeve 4 is separated from the boss 10 on the hinge seat 7, and the pin 8 at the end of the driving tube 5 slides in the curved chute 6 of the hinge seat 7, so that the pushing handle 2 is pushed, at the same time, the hinge seat 7 presses the driving tube 5 to move forward, the second lock pin 52 is separated from the clamping groove 43, and the first lock pin 51 is separated from the straight groove 42, and at the same time, because the first lock pin 51 on the driving tube 5 is clamped in the spiral hollow track 41 of the rotating sleeve 4, when the driving tube 5 continues to move forward, the spiral hollow track 41 of the rotating sleeve 4 rotates relatively around the first lock pin 51, so that the pushing 22 pushes the driving tube 5 to rotate the caster 3 connected to the rotating sleeve 4, thereby realizing automatic folding of the caster 3 under the carrier tube 11 when the pushing handle 2 is folded. When the push handle 2 is rotated downward to a certain angle, the lock base 151 automatically moves forward under the force of the small spring 155 when the force pressing on the push handle 2 is released. When opened, the lock base 151 automatically moves rearward under the force of the pin 8.

The operation of opening the luggage cart is reversed from the above.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. The utility model provides a novel luggage van, includes that is used for carrying thing support (1) of thing board, panel (12), truckle (3) and through hinge (7) connect and can fold pushing hands (2) on carrying the thing board, its characterized in that: the carrying bracket (1) comprises two parallel bracket pipes (11) and 4 hardware (13) welded at the ends of the bracket pipes (4), wherein the hardware (13) is used for fixing the casters (3) on a rotary sleeve (4) which can be sleeved on the bracket pipes (11), and the two ends of the bracket pipes (11) are connected with the hinged support (7) through fulcrums (0); the pushing handle (2) comprises an inner telescopic sleeve (21) and an outer telescopic 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 mechanism (92), a bolt (91D), a small spring (92C), a button (92A) and a Z-shaped convex hook (92B); the hinged support (7) is L-shaped, two sides of the hinged support are provided with arc-shaped sliding grooves (6), and an automatic locking mechanism (15) is arranged in the hinged support and can be linked with the telescopic locking mechanism (9); a transmission pipe (5) is arranged in the bracket pipe (11), a first lock pin (51) and a second lock pin (52) which are clamped and embedded in the hollow track are arranged on the transmission pipe (5), a certain distance is formed between the first lock pin and the second lock pin and are mutually perpendicular, an opening (11B) for the first lock pin (51) to slide is formed in the pipe wall, and a pin column (8) which is clamped in the arc-shaped chute (6) and can slide in the chute is arranged at the end part of the transmission pipe (5);

the rotary sleeve (4) comprises a rotary base (4 a), a rotary seat (4 b) and a rotary sleeve seat (4 c), wherein two spiral hollow rails (41) which are axially symmetrical are arranged on the inner wall of the rotary base (4 a), and a straight groove (42) is formed in the tail of each hollow rail (41) for a first lock pin (51) to slide into the hollow rail (41) and be clamped into the straight groove (42) for locking; the rotating seat (4 b) is of 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 (52), and the rotating seat (4 b) is combined with the rotating base (4 a) and sleeved into the rotating sleeve seat (4 c) to form a whole; a notch (44) is formed at the bottom of the rotary sleeve (4) and can be used for clamping and fixing a boss (10) at the front end of the bottom of the hinged support (7);

the automatic locking mechanism (15) consists of a chute (150), an L-shaped lock seat (151), a lock column (152), a transmission plate (153), a reset sleeve (154), a spring (155), a connecting nail (156) and a limiting tube (157); the two side surfaces of the L-shaped lock seat (151) are provided with inclined grooves (150), the lower part of the L-shaped lock seat is arranged in a sliding groove at the bottom of the hinged seat (7) and can slide back and forth to form movable connection only with the freedom of axial movement along the transmission pipe 5; a lock column (152) is arranged in the chute (150), and the lock column (152) can penetrate through the chute (150) to be connected with a transmission plate (153); the transmission plate (153) is arranged on a reset sleeve (154) with a through hole on the outer wall and can slide up and down along the through hole of the reset sleeve (154); the reset sleeve (154) is fixed at the lower end part of the outer sleeve (22), and is sequentially provided with a spring (155), a connecting nail (156) and a limiting pipe (157) from bottom to top to form a linkage locking mechanism which automatically pushes upwards in a normal state;

the telescopic locking mechanism (9) is a horizontal cross rod and is positioned between the two parallel outer sleeves (22) and comprises an unlocking mechanism (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 of the button is provided with a Z-shaped convex hook (92B), the lower end of the button is provided with a small spring (92C), and two sides of the button are connected with a bolt (91D);

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 pushing handle (2) is folded on the panel (12).

2. A new luggage barrow according to claim 1, wherein: the hardware (13) is provided with a lock pin opening (13A) for the second lock pin (52) to slide.

3. A new luggage barrow according to claim 1, wherein: the upper end of the limiting pipe (157) is provided with a limiting pin (00) and is movably connected with the inner sleeve (21), and the lower end of the limiting pipe passes through a through hole on an inner plug (21 a) at the bottom of the inner sleeve (21) and is indirectly connected with the transmission plate (153).