CN111348083A

CN111348083A - Trolley convenient to use

Info

Publication number: CN111348083A
Application number: CN202010227031.6A
Authority: CN
Inventors: 张玉杰; 陈炳聪; 刘爱荣; 张力文
Original assignee: Guangzhou University
Current assignee: Guangzhou University
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-06-30

Abstract

The invention discloses a convenient trolley which comprises a supporting plate, wherein the front side surface of the supporting plate is a carrying surface, the supporting plate is hollow, a movable box body is arranged in the supporting plate, two supporting parts are arranged at the bottom in the box body, a second through hole for the supporting parts to extend out is formed in the front side wall of the box body, the rear side of each supporting part is installed with the rear side wall in the box body through a compression spring, two handles are installed on the upper side edge of the box body, a pull rope is arranged between each handle and the corresponding supporting part, a first bulge and two second bulges are arranged on the side surface of each handle, the two second bulges are arranged from top to bottom, the stroke of the movement of each handle is arranged between the two second bulges, the first bulge is arranged between the two second bulges, and the first bulge can. The supporting part is used for supporting the object, and the object is prevented from falling from the object carrying surface to cause damage during hauling. The invention has reasonable structure and convenient hauling, and can be widely applied to the technical field of small trolleys.

Description

Trolley convenient to use

Technical Field

The invention relates to the technical field of small carts, in particular to a small cart convenient to use.

Background

With the high precision requirement of laboratories on articles, ordinary forklifts and flat cars cannot meet the carrying work of high precision and heavy articles in laboratories. Such as: when carrying 100 ~ 150 kg's concrete test block, manual transport is very difficult, causes the damage easily moreover in handling, and then influences the experimental result, causes the serious loss of manpower and materials.

Disclosure of Invention

In order to solve the technical problems, facilitate the carrying of articles and avoid the damage of the articles, the invention provides a trolley which is convenient to use, and the adopted technical scheme is as follows:

the invention provides a convenient trolley which comprises a support plate, wherein the front side surface of the support plate is a carrying surface, the rear side surface of the support plate is provided with two pull rods, the rear side surface of the support plate is provided with two wheels, the support plate is hollow, a movable box body is arranged in the support plate, the upper side and the lower side of the support plate are open, the bottom in the box body is provided with two support parts, the front side wall of the box body is provided with a second through hole for the support parts to extend out, the rear side of the support parts is installed with the rear side wall in the box body through a compression spring, the upper side of the box body is provided with two handles which respectively correspond to the two support parts, a guy cable is arranged between each handle and the corresponding support part, the upper side of the box body is provided with a first through hole for the handle to pass through, the side surface of each handle is provided with a first bulge and two second bulges, the, the first projection is arranged between the two second projections, the first projection being retractable with respect to the side of the handle.

Furthermore, a telescopic third bulge is arranged outside the rear side wall of the box body, and a limiting hole corresponding to the third bulge is formed in the rear side face of the supporting plate.

Further, the inner side of the rear side surface of the support plate is formed with an inclined guide surface on the upper side of the stopper hole, and the guide surface extends from the inner side of the rear side surface of the support plate to the bottom of the stopper hole.

Furthermore, a steering wheel is arranged in the box body, and the inhaul cable bypasses the steering wheel.

Furthermore, the object carrying surface is provided with a plurality of anti-slip strips.

Furthermore, the anti-slip strip is made of carborundum.

Furthermore, the supporting plate is fastened with the object through a binding belt.

Furthermore, the bottom end of the pull rod is formed with an inclined surface.

Further, when the pull rod is erected, the wheel is separated from the ground.

Has the advantages that: the telescopic supporting part is designed to be used for supporting the object, and damage caused by falling of the object from the object carrying surface during hauling is avoided. The invention has reasonable structure and convenient hauling, and can be widely applied to the technical field of small trolleys.

Drawings

FIG. 1 is a view of the structure of the dolly when it is set up, wherein the upper side, lower side, front side and rear side in the following are all relative to the orientation of the dolly when it is set up;

FIG. 2 is a side view of the dolly when erected;

FIG. 3 is a structural view of the cabinet showing the support portion retracted in the cabinet;

fig. 4 is a structural view of the case showing the support portion protruding from the second through hole.

Detailed Description

The present invention will be further described with reference to fig. 1 to 4.

The invention relates to a trolley convenient to use, which comprises a supporting plate 11, wherein two pull rods 12 are arranged on the rear side surface of the supporting plate 11, and the pull rods 12 are telescopic rods. Two wheels 13 are arranged on the rear side of the support plate 11, and the two wheels 13 are respectively arranged on the two pull rods 12. The small handcart has simple structure and small occupied space.

The front side of the supporting plate 11 is a carrying surface, and the carrying surface is provided with a plurality of anti-slip strips for increasing the friction force between the carrying surface and the object. The anti-slip strip is made of carborundum materials.

In some embodiments, after the object is placed on the supporting plate 11, the supporting plate 11 is fastened by the binding band, and the binding band is fixed to the supporting plate by the binding object. The binding band is a common structure and will not be described in detail.

An inclined surface 19 is formed at the bottom end of the pull rod 12, when the pull rod 12 is erected, the inclined angle of the inclined surface 19 relative to the horizontal plane is 45 degrees, and the trolley can be conveniently inclined from the erected state after an object is fixed.

It should be noted that when the pull rod 12 is erected, the wheel 13 is separated from the ground by the support of the bottom end of the pull rod 12, that is, the height of the center of the wheel 13 should be greater than the radius of the wheel 13. In the process of inclining the small handcart, due to the action of the supporting plate 11 and the binding belt, the object and the supporting plate 11 are inclined simultaneously, the small handcart and the goods can be inclined continuously before the wheels 13 contact the ground, so that the resultant force of the normal force vertical component and the friction force vertical component is provided for the object by the object carrying surface of the supporting plate 11, the lifting force is increased continuously, and then the object is lifted off the ground; meanwhile, before the wheels 13 contact the ground, the lower end of the supporting plate 11 and a part of the object are always in contact with the ground, and due to the action of the binding belt, the object is prevented from slipping or falling due to insufficient lifting force or unstable support in the tilting process. With the continuous inclination of the supporting plate 11 and the object, the lifting force is formed by the resultant force of the normal force vertical component and the friction force vertical component, so that the lifting force is continuously lifted, and the object can be lifted off the ground finally. The height from the ground is then increased so as to provide space for the extension of the housing 14 and the ejection of the support portion 15. The support portion 15 is ejected to prevent the object from slipping off due to bumping during horizontal transportation.

The two pull rods 12 are respectively provided with a support rod 20, and the two support rods 20 are used for supporting the trolley when the trolley is horizontally placed.

The backup pad 11 cavity, be arranged with mobilizable box 14 in the backup pad 11, the upside and the downside of backup pad 11 are uncovered, and two supporting parts 15 have been arranged to the bottom in the box 14, and the preceding lateral wall shaping of box 14 has the second through-hole that can supply supporting part 15 to stretch out, and the rear side of supporting part 15 passes through compression spring and the installation of the back lateral wall in the box 14, makes supporting part 15 stretch out from the second through-hole through compression spring. The box 14 is moved to the lower side of the supporting plate 11 to expose the second through hole at the lower side of the supporting plate 11, so that the supporting portion 15 protrudes from the second through hole and protrudes from the object carrying surface for supporting the object during hauling.

Two handles 16 are installed to the upside of box 14, and two handles 16 correspond two supporting parts 15 respectively, have arranged the cable between handle 16 and the supporting part 15 that corresponds, and the shaping of the upside of box 14 has the first through-hole that can supply handle 16 to pass. Pressing the handle 16 moves the housing 14 toward the underside of the support plate 11 until the second through-hole is exposed at the underside of the support plate 11, and the handle 16 is pressed down to contact the pull of the cable to the support portion 15, thereby compressing the spring to push the support portion 15 to protrude from the second through-hole. The handle 16 is pulled up, the cable pulling support part 15 is retracted into the case body 14, and the case body 14 is moved into the support plate 11 by continuing to pull up the handle 16.

First arch and two second are protruding to the side of handle 16 has been arranged, and two second are protruding from last arranging down, are the stroke that handle 16 removed between two second archs, and the second arch that is located the upside is used for supporting the upside of box 14 upper side board, and the second arch that is located the downside is used for supporting the downside of box 14 upper side board.

The first protrusion is arranged between the two second protrusions, the side face of the first protrusion, relative to the handle 16, is telescopic, the handle 16 is hollow, the first protrusion is installed on the inner wall of the handle 16 through an elastic sheet, and the first protrusion and the second protrusion are both spherical protrusions. When the sidewall of the second through hole is positioned between the first projection and the second projection positioned at the lower side, the housing 14 is positioned within the support plate 11, and the support portion 15 is retracted in the housing 14. When the side wall of the second through hole is located between the first projection and the second projection located on the upper side, the second through hole is exposed at the lower side of the support plate 11, and the support portion 15 protrudes from the second through hole.

A telescopic third bulge 17 is arranged outside the rear side wall of the box body 14, the third bulge 17 is installed on the rear side wall of the box body 14 through a spring plate, and a limiting hole corresponding to the third bulge 17 is formed in the rear side face of the supporting plate 11. When the box body 14 moves towards the lower side of the supporting plate 11, the third bulge 17 enters the limiting hole, so that the box body 14 is prevented from continuously moving due to the pressure of the object when the supporting part 15 is abutted against the object.

An inclined guide surface is formed on the upper side of the limiting hole on the inner side of the rear side surface of the support plate 11, and the guide surface extends to the bottom of the limiting hole from the inner side of the rear side surface of the support plate 11, so that the third bulge 17 can be conveniently moved out of the limiting hole when the box body 14 moves to the upper side of the support plate 11.

The case 14 is provided with a steering wheel 18, the stay cable is wound around the steering wheel 18, and the pulling direction of the stay cable to the support part 15 is changed through the steering wheel 18, so that the pulling direction of the stay cable is parallel to the elastic force direction of the compression spring.

The specific use of the dolly is as follows: the cart is erected, the article is fastened to the carrying surface by the binding band, the cart is tilted, and the support portion 15 is ejected by the handle 16. Simple operation and convenient hauling.

The bottom end of the pull rod 12 is designed to have an inclination angle, so that the rotating radius of the small trolley during the inclination is effectively reduced, and the force analysis shows that in the inclination process of the small trolley, the lifting force formed by the resultant force of the normal force vertical component and the friction force vertical component provided by the object carrying surface when the object is just inclined along with the support plate 11 is small, and at the moment, the object is easy to slide or slide from the object carrying surface, so that the rotating radius of the support plate 11 is reduced to reduce the initial sliding distance of the object, and a larger inclination angle is obtained, so that a larger lifting force is obtained.

While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a small handcart that facilitates use which characterized in that: comprises a supporting plate (11), the front side surface of the supporting plate (11) is a carrying surface, two pull rods (12) are arranged on the rear side surface of the supporting plate (11), two wheels (13) are arranged on the rear side surface of the supporting plate (11), the supporting plate (11) is hollow, a movable box body (14) is arranged in the supporting plate (11), the upper side and the lower side of the supporting plate (11) are open, two supporting parts (15) are arranged at the bottom in the box body (14), a second through hole for the supporting parts (15) to extend out is formed in the front side wall of the box body (14), the rear side of the supporting parts (15) is installed with the rear side wall in the box body (14) through a compression spring, two handles (16) are installed on the upper side edge of the box body (14), the two handles (16) respectively correspond to the two supporting parts (15), a guy cable is arranged between each handle (16) and the corresponding supporting part (15), a first through hole for the handle (16, the side of the handle (16) is provided with a first bulge and two second bulges, the two second bulges are arranged from top to bottom, the moving stroke of the handle (16) is arranged between the two second bulges, the first bulge is arranged between the two second bulges, and the first bulge can stretch and retract relative to the side of the handle (16).

2. The cart for convenient use according to claim 1, wherein: a telescopic third bulge (17) is arranged outside the rear side wall of the box body (14), and a limiting hole corresponding to the third bulge (17) is formed in the rear side surface of the supporting plate (11).

3. The cart for convenient use according to claim 2, wherein: the inner side of the back side surface of the support plate (11) is formed with an inclined guide surface on the upper side of the limiting hole, and the guide surface extends from the inner side of the back side surface of the support plate (11) to the bottom of the limiting hole.

4. The cart for convenient use according to claim 1, wherein: a steering wheel (18) is arranged in the box body (14), and a guy cable bypasses the steering wheel (18).

5. The cart for convenient use according to claim 1, wherein: the object carrying surface is provided with a plurality of anti-slip strips.

6. The cart for convenient use according to claim 5, wherein: the anti-slip strip is made of carborundum materials.

7. The cart for convenient use according to claim 1, wherein: the supporting plate (11) is fastened with the object through a binding belt.

8. The cart for convenient use according to claim 1, wherein: an inclined surface (19) is formed at the bottom end of the pull rod (12).

9. The cart for convenient use according to claim 1, wherein: when the pull rod (12) is erected, the wheels (13) are separated from the ground.