CN209956046U

CN209956046U - Flat-plate cart

Info

Publication number: CN209956046U
Application number: CN201920477356.2U
Authority: CN
Inventors: 孟硕
Original assignee: Beijing Hangji International Logistics Co Ltd
Current assignee: Beijing Hangji International Logistics Co Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-01-17
Anticipated expiration: 2029-04-09

Abstract

The utility model discloses a flat-plate trolley, which relates to the field of logistics transportation, and the technical scheme is characterized in that the flat-plate trolley comprises a bottom plate, a traveling wheel arranged at the bottom end of the bottom plate and a handle fixed at one end of the bottom plate, wherein the handle is provided with a braking device for braking the traveling wheel; the braking device comprises braking pieces, a connecting rod connected with the braking pieces positioned on two sides of the bottom plate, a first rack fixed at the top end of the connecting rod, a braking gear meshed on one side of the top end of the first rack, a second rack meshed with the braking gear and parallel to the first rack, and a driving mechanism fixed at the top end of the second rack. The utility model discloses have the effect that stops after the dull and stereotyped shallow of convenient control reachs the terminal point.

Description

Flat-plate cart

Technical Field

The utility model relates to a commodity circulation transportation field especially relates to a flat cart.

Background

The flat-bed cart is a common carrying tool, is widely used in life due to low manufacturing cost, is very convenient when carrying goods at short distance, and consists of a bottom plate and moving wheels.

In the prior art, chinese utility model patent with an authorization notice number of CN202669878U discloses a manual flat-bed cart, which comprises a flat-bed cart, on which a telescopic hinged frame is installed. The telescopic hinged frame is arranged around the flat plate surface of the flat plate cart.

However, in the process of using the manual flat-bed cart, because a braking device is not arranged, the manual flat-bed cart can still move due to inertia after goods are transported to the terminal, the manual braking (dragging and stopping) increases the working strength of workers, and the manual braking has limitation when the mass of the transported goods is large.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a flat-bed cart is through setting up the stop after arresting gear conveniently controls flat-bed cart reachs the terminal point.

In order to achieve the above purpose, the utility model provides a following technical scheme: a flat-bed cart comprises a bottom plate, traveling wheels arranged at the bottom end of the bottom plate and a handle fixed at one end of the bottom plate, wherein a braking device for braking the traveling wheels is arranged on the handle; the braking device comprises braking pieces, a connecting rod connected with the braking pieces positioned on two sides of the bottom plate, a first rack fixed at the top end of the connecting rod, a braking gear meshed on one side of the top end of the first rack, a second rack meshed with the braking gear and parallel to the first rack, and a driving mechanism fixed at the top end of the second rack.

Through adopting above-mentioned technical scheme, actuating mechanism drives the second rack and rises, and first rack descends under the conversion of brake gear, and the first rack that descends drives connecting rod and braking piece to the direction motion of being close to the walking wheel for braking piece and the inseparable butt of walking wheel, thereby reduce the braking of walking wheel, conveniently brake the walking wheel.

The utility model discloses further set up to: the driving mechanism comprises a shell fixed on the handle, a rotating sleeve rotatably connected inside the shell, a driving gear coaxially rotating with the rotating sleeve and a third rack meshed with the driving gear.

Through adopting above-mentioned technical scheme, thereby rotate the cover and rotate and drive the motion of third rack and drive the motion of first rack, rotate the convenient walking wheel that brakes of cover through rotating.

The utility model discloses further set up to: the driving mechanism further comprises a fixing assembly for fixing the rotating sleeve after rotating.

Through adopting above-mentioned technical scheme, fixed subassembly is fixed the rotor plate after the rotation, makes things convenient for the transport vechicle to stop on the inclined plane.

The utility model discloses further set up to: the fixed component comprises a ratchet wheel and a pawl, wherein the ratchet wheel and the rotating sleeve rotate coaxially, and the pawl is rotatably connected inside the shell and matched with the ratchet wheel.

Through adopting above-mentioned technical scheme, ratchet and pawl cooperation for the rotating sleeve can one-way lock die, makes things convenient for the rotation of rotating sleeve and fixed to rotating the back rotating sleeve.

The utility model discloses further set up to: and a rotating shaft extending out of the shell is fixed on one side of the pawl, and a shifting block is fixed at one end of the rotating shaft extending out of the shell.

Through adopting above-mentioned technical scheme, the shifting block conveniently drives the pawl and rotates.

The utility model discloses further set up to: and a reset component for driving the brake block to reset is arranged on one side of the top end of the first rack.

Through adopting above-mentioned technical scheme, the subassembly that resets can drive the braking piece and reset after the brake, makes things convenient for the continuation motion of transport vechicle.

The utility model discloses further set up to: the reset assembly comprises a fixed block fixed on one side of the top end of the first rack, a guide pillar fixed at the bottom end of the fixed block and an elastic piece driving the fixed block to move towards the direction far away from the bottom plate.

Through adopting above-mentioned technical scheme, the elastic component drives the direction motion that the fixed block wants to keep away from the bottom plate, conveniently controls the reseing of braking piece.

In conclusion, the beneficial technical effects of the invention are as follows:

1. the driving mechanism drives the second rack to ascend, the first rack descends under the conversion of the braking gear, and the descending first rack drives the connecting rod and the brake piece to move towards the direction close to the travelling wheel, so that the brake piece is tightly abutted against the travelling wheel, the braking of the travelling wheel is reduced, and the travelling wheel is conveniently braked;

2. the ratchet wheel is matched with the pawl, so that the rotating sleeve can be locked in a single direction, the rotating sleeve can conveniently rotate, and the rotating sleeve can be fixed after rotating;

3. the elastic piece drives the fixed block to move in the direction away from the bottom plate, so that the resetting of the brake piece is conveniently controlled.

Drawings

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

FIG. 2 is a schematic view of an embodiment of a braking device;

FIG. 3 is an enlarged view of portion A of FIG. 1;

fig. 4 is a schematic diagram showing a drive mechanism.

In the figure: 1. a base plate; 11. a T-shaped block; 2. a traveling wheel; 21. a support; 3. a handle; 4. a braking device; 41. a brake pad; 42. a connecting rod; 43. a first rack; 44. a reset assembly; 441. a fixed block; 442. a guide post; 443. a spring; 45. a brake gear; 46. a second rack; 461. a T-shaped slot; 47. a transition rod; 48. a drive mechanism; 481. a housing; 482. rotating the sleeve; 4821. a rotating rod; 483. a drive gear; 484. a third rack; 485. a fixing assembly; 4851. a ratchet wheel; 4852. a pawl; 4853; a rotating shaft; 4854. and (5) shifting blocks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a flat-bed cart, refer to fig. 1, and a flat-bed cart, refer to fig. 1, comprises a bottom plate 1, a walking wheel 2 arranged at the bottom end of the bottom plate 1, a handle 3 fixed at one end of the bottom plate 1, and a braking device 4 arranged on the handle 3 for braking the walking wheel 2. The bottom end of the bottom plate 1 is fixed with a bracket 21, and the walking wheels 2 are rotatably connected with the bracket 21.

Referring to fig. 1 and 2, the braking device 4 includes a brake plate 41 sliding in a vertical direction on the bracket 21, a connecting rod 42 connecting the brake plates 41 on both sides of the base plate 1, a first rack 43 fixed to a top end of the connecting rod 42, a reset assembly 44 fixed to one side of a top end of the first rack 43, a brake gear 45 engaged to the other side of a top end of the first rack 43, a second rack 46 engaged with the brake gear 45 and parallel to the first rack 43, a transition rod 47 fixed to a top end of the second rack 46, and a driving mechanism 48 fixed to a top end of the transition rod 47.

The brake pad 41 is arc-shaped and can be abutted with the traveling wheel 2, and after the brake pad 41 is abutted with the traveling wheel 2, the kinetic energy of the rotation of the traveling wheel 2 is reduced, so that the traveling wheel 2 is braked. In order to balance the braking effect of the both-side brake pads 41, the first rack 43 is fixed at a middle position of the connecting rod 42. The brake gear 45 is rotatably connected with the base plate 1 and simultaneously engaged with the first rack 43 and the second rack 46, and the first rack 43 and the second rack 46 are parallel to each other, so that the first rack 43 and the second rack 46 move in opposite directions to each other. The driving mechanism 48 is disposed on the handle 3 and drives the transition rod 47 to move.

Referring to fig. 3, the restoring member 44 includes a fixing block 441 fixed to one side of the top end of the first rack 43, a guide post 442 fixed to the bottom end of the fixing block 441, and a spring 443 disposed on the guide post 442. The guide post 442 can be connected with the bottom plate 1 in a sliding manner in the vertical direction, the top end of the spring 443 is abutted to the end of the fixing block 441, and the bottom end of the spring 443 is abutted to the top end of the bottom plate 1, so that the fixing block 441 can be driven to move in a direction away from the bottom plate 1.

A T-shaped slot 461 is arranged on one side of the second rack 46 far away from the brake gear 45, and a T-shaped block 11 which can slide in the T-shaped slot 461 is fixed on the bottom plate 1. The T-block 11 slides in the T-slot 461, increasing the stability of the sliding of the second rack 46.

Referring to fig. 2 and 4, the driving mechanism 48 includes a housing 481 fixed to the handle 3, a rotating sleeve 482 rotatably coupled inside the housing 481, a driving gear 483 coaxially rotating with the rotating sleeve 482, a third rack 484 engaged with the driving gear 483, and a fixing member 485 fixing the rotating sleeve 482 after rotation.

The fixed member 485 includes a ratchet 4851 rotating coaxially with the rotary sleeve 482, a pawl 4852 rotatably coupled inside the housing 481 and cooperating with the ratchet 4851, a rotary shaft 4853 rotating coaxially with the pawl 4852 and protruding out of the housing 481, and a paddle 4854 fixed to an end of the rotary shaft 4853 protruding out of the housing 481.

One end of the rotating sleeve 482 extends out of the shell 481, and a rotating rod 4821 is fixed at one end of the rotating sleeve 481, so that the rotating sleeve 482 can be conveniently rotated; the rotating sleeve 482 is fitted over the top end of the handle 3 and can rotate relative to the handle 3. The bottom end of the third rack 484 is fixed to the top end of the transition bar 47.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a flat-plate trolley, includes bottom plate (1), sets up walking wheel (2) and fix handle (3) in bottom plate (1) one end in bottom plate (1) bottom, its characterized in that: a braking device (4) for braking the travelling wheels (2) is arranged on the handle (3); the braking device (4) comprises braking pieces (41), a connecting rod (42) connected with the braking pieces (41) positioned on two sides of the base plate (1), a first rack (43) fixed at the top end of the connecting rod (42), a braking gear (45) meshed with one side of the top end of the first rack (43), a second rack (46) meshed with the braking gear (45) and parallel to the first rack (43), and a driving mechanism (48) fixed at the top end of the second rack (46).

2. The flat cart of claim 1, wherein: the driving mechanism (48) comprises a shell (481) fixed on the handle (3), a rotating sleeve (482) rotatably connected inside the shell (481), a driving gear (483) coaxially rotating with the rotating sleeve (482), and a third rack (484) meshed with the driving gear (483).

3. The flat cart of claim 2, wherein: the driving mechanism (48) further comprises a fixing assembly (485) for fixing the rotating sleeve (482) after rotating.

4. The flat cart of claim 3, wherein: the fixed assembly (485) comprises a ratchet wheel (4851) which rotates coaxially with the rotating sleeve (482), and a pawl (4852) which is rotatably connected inside the shell (481) and is matched with the ratchet wheel (4851).

5. The flat cart of claim 4, wherein: a rotating shaft (4853) extending out of the shell (481) is fixed on one side of the pawl (4852), and a shifting block (4854) is fixed on one end, extending out of the shell (481), of the rotating shaft (4853).

6. The flat cart of claim 1, wherein: and a reset component (44) for driving the brake pad (41) to reset is arranged on one side of the top end of the first rack (43).

7. The flat cart of claim 6, wherein: the reset assembly (44) comprises a fixed block (441) fixed on one side of the top end of the first rack (43), a guide post (442) fixed at the bottom end of the fixed block (441), and an elastic element driving the fixed block (441) to move towards the direction far away from the bottom plate (1).