CN219007904U

CN219007904U - Shock attenuation chassis for super handcart of merchant

Info

Publication number: CN219007904U
Application number: CN202320029333.1U
Authority: CN
Inventors: 戴益明
Original assignee: Suzhou Qhdc Metal Product Co ltd
Current assignee: Suzhou Qhdc Metal Product Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-05-12
Anticipated expiration: 2033-01-06

Abstract

The utility model belongs to the field of trolleys, in particular to a damping chassis for a commercial supertrolley, which comprises a bottom plate and a top plate, wherein universal wheels are rotatably arranged at four corners of the bottom plate, the universal wheels are slidably arranged at the top of the ground of a market supermarket, a feed hopper is fixedly arranged at the left side of the top plate, and a handle is fixedly arranged at the right side of the top plate; and the damping component is arranged on the bottom plate and the top plate. The utility model has reasonable design, can realize the damping effect through various structures, can avoid the conditions of reducing amplitude and improving vibration frequency while realizing damping, and further greatly avoid damaging commercial supercargoes, so that the trolley has better damping effect, higher safety of the transported cargoes, and can guide and support the cargoes through the periphery and the middle point, avoid the inclination of the top plate when the top plate moves up and down, further ensure that the top plate is uniformly stressed, avoid damage and prolong the service life of the trolley.

Description

Shock attenuation chassis for super handcart of merchant

Technical Field

The utility model relates to the technical field of trolleys, in particular to a damping chassis for a commercial super trolley.

Background

The handcart is a vehicle which is pushed and pulled by people to carry, is an ancestor of all vehicles, and although the material carrying technology of the handcart is continuously developed, the handcart is still used as an indispensable carrying tool, and the handcart is widely applied in production and life because the handcart has the advantages of low cost, simple maintenance, convenient operation, light dead weight and the like, can work in places where motor vehicles are inconvenient to use, is quite convenient to use when carrying lighter objects in short distance, and the handcart used in a supermarket in a market always generates larger vibration due to heavy dead weight when carrying heavier goods or passing steps, and easily leads to damage of the vulnerable goods in the handcart, so a damping chassis for the handcart is needed to damp the handcart in the supermarket in the use process;

the utility model discloses a shock attenuation chassis for handcart, including the chassis, the top both sides of chassis are fixed to be set up two sets of shell fragment, two sets of the top fixedly connected with of shell fragment places the board, place the top both sides of board and be fixed with two sets of draw bars, two sets of the spout has been seted up to the inside sliding connection of draw bar opposite lateral wall, the inside sliding connection of spout has the car hopper, the back wall upper end both sides of car hopper are fixed with two sets of screw rods, the back wall of placing the board is fixed with the handle, the through-hole has been seted up to the upper end both sides of handle, the top of chassis is fixed to be set up multiunit dead lever, the pole body cover of dead lever is equipped with the second spring, the one end fixedly connected with chassis of second spring, the other end fixedly connected with second connecting plate;

the handcart is damped once through the elastic sheet, when the first connecting plate and the first spring which are arranged are used for enabling the first connecting plate to descend when being extruded by a heavy object, four groups of second connecting plates and second springs which are connected through connecting rods are used for further damping, the damping mode possibly has two problems in the use process, one is that the kinetic energy generated by vibration is converted only by the deformation of the elastic sheet and the spring, the amplitude is possibly reduced, but the condition that the vibration frequency is increased occurs, the super goods of the carrier can be damaged, so that the shock absorption effect of the trolley is poor, the safety of the super goods of the carrier is low, and the placing plate of the trolley is guided at the middle position only when the trolley is shocked, so that the placing plate of the trolley can incline sideways when moving up and down, uneven stress, damage and reduction of the placing plate and the shock absorption device of the trolley are easily caused for a long time, and the service life of the trolley is reduced.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a damping chassis for a commercial superhandcart.

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

a shock absorbing chassis for a commercial supercart, comprising:

the bottom of the bottom plate is rotatably provided with universal wheels at four corners, the universal wheels are slidably arranged at the top of the ground of a market supermarket, the left side of the top plate is fixedly provided with a feed hopper, and the right side of the top plate is fixedly provided with a handle;

a shock absorbing assembly mounted on the bottom plate and the top plate;

and the guide assembly is arranged on the bottom plate and the top plate.

Preferably, the damping component comprises a first mounting plate, a second mounting plate, a first dead axle, a second dead axle, a first connecting rod, a second connecting rod and a third dead axle, wherein the first mounting plate is slidably mounted on the front and back sides of the top left side of the bottom plate and the front and back sides of the bottom left side of the top plate, the second mounting plate is slidably mounted on the front and back sides of the top right side of the bottom plate and the front and back sides of the bottom right side of the top plate, the first dead axle is fixedly mounted between the inner sides of the first mounting plate, the second dead axle is fixedly mounted between the inner sides of the second mounting plate, one end of the first connecting rod is rotatably mounted on the front and back sides of the outer side of the first dead axle above, one end of the first connecting rod is rotatably mounted on the front and back sides of the outer side of the second dead axle below, one end of the second connecting rod is rotatably mounted on the front and back sides of the outer side of the second dead axle, one end of the third connecting rod is rotatably mounted on the front and back sides of the first dead axle below.

Preferably, the damping component further comprises a third mounting plate, a fourth dead axle and a pneumatic rod, wherein the third mounting plate is fixedly mounted at four corners of the top of the bottom plate, the fourth dead axle is fixedly mounted between the inner sides of the third mounting plate on the front side and the rear side, one end of the pneumatic rod is rotatably mounted on the outer side of the fourth dead axle, and one end of the pneumatic rod is rotatably mounted in the middle of the outer side of the third dead axle.

Preferably, the damping assembly further comprises an elastic plate, the cross section of the elastic plate is semi-elliptical, and the elastic plate is made of 65Mn material.

Preferably, the lengths of the first connecting rod and the second connecting rod are the same, and the initial included angle of the first connecting rod and the second connecting rod is twenty-five degrees.

Preferably, the initial included angle of the two pneumatic rods is ninety degrees, nitrogen is arranged in the pneumatic rods, and the initial pressure in the pneumatic rods is set to be two atmospheric pressure values.

Preferably, the guide assembly comprises guide rods and springs, the guide rods are fixedly arranged at four corners of the top of the bottom plate, the springs are sleeved on the outer sides of the guide rods, one ends of the springs are fixedly arranged at the top of the bottom plate, one ends of the springs are fixedly arranged at the bottom of the top plate, and the top plate is slidably arranged between the outer sides of the guide rods.

Preferably, the top end of the guide rod is slightly higher than the top of the top plate, and a polytetrafluoroethylene layer is arranged on the surface of the guide rod.

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the damping chassis for the commercial superhandcart, through the damping components, the damping effect can be achieved through various structures, the conditions of reduced amplitude and improved vibration frequency can be avoided while damping is achieved, damage to commercial supercargoes is avoided greatly, the damping effect of the trolley is good, and the safety of the transported cargoes is high.

(2) According to the damping chassis for the commercial superhandcart, through the guide assembly, the damping chassis for the commercial superhandcart can be guided and supported through the periphery and the middle point, so that the top plate is prevented from tilting when moving up and down, the top plate is enabled to be uniformly stressed, damage is avoided, and the service life of the trolley is prolonged.

Drawings

FIG. 1 is a schematic perspective view of a damping chassis for a commercial super cart according to the present utility model;

FIG. 2 is a schematic cross-sectional view of a damping chassis for a commercial super cart according to the present utility model;

FIG. 3 is an enlarged schematic view of the portion A in FIG. 2;

FIG. 4 is an enlarged schematic view of the portion B in FIG. 2;

fig. 5 is an enlarged schematic view of a portion C in fig. 2.

In the figure: 1. a bottom plate; 2. a top plate; 3. a universal wheel; 4. a feed hopper; 5. a handle; 6. a first mounting plate; 7. a second mounting plate; 8. a first fixed shaft; 9. a second fixed shaft; 10. a first link; 11. a second link; 12. a third fixed shaft; 13. a third mounting plate; 14. a fourth fixed shaft; 15. a pneumatic rod; 16. an elastic plate; 17. a guide rod; 18. and (3) a spring.

Detailed Description

The following description of the embodiments of the present utility model 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 utility model, but not all embodiments.

Examples

Referring to fig. 1 to 5, a shock absorbing chassis for a commercial super cart comprises a base plate 1, a top plate 2, shock absorbing components and guide components, wherein universal wheels 3 are rotatably arranged at four corners of the bottom of the base plate 1, the universal wheels 3 can facilitate the movement of the commercial super cart, the universal wheels 3 are slidably arranged at the top of the ground of a market supermarket, a feed hopper 4 is fixedly arranged at the left side of the top plate 2, a handle 5 is fixedly arranged at the right side of the top plate 2, the handle 5 can facilitate a user to push the commercial super cart, the shock absorbing components are arranged on the base plate 1 and the top plate 2, the guide components are arranged on the base plate 1 and the top plate 2, a first mounting plate 6 is slidably arranged at the front and back sides of the left side of the top of the base plate 1 and the front and back sides of the left side of the bottom of the top plate 2, a second mounting plate 7 is slidably arranged at the front and back sides of the right side of the top of the base plate 1 and the front and back sides of the bottom of the top plate 2, the first mounting plate 6 and the second mounting plate 7 can respectively and fixedly support the first fixed shaft 8 and the second fixed shaft 9, the bottoms or the tops of the first mounting plate 6 and the second mounting plate 7 are respectively provided with a sliding block, the bottoms of the top plate 2 and the top of the bottom plate 1 are respectively provided with a sliding groove, the sliding blocks can slide in the sliding grooves, the first fixed shaft 8 is fixedly arranged between the inner sides of the first mounting plate 6, the second fixed shaft 9 is fixedly arranged between the inner sides of the second mounting plate 7, the first fixed shaft 8 and the second fixed shaft 9 can be convenient for carrying out limit support on the first connecting rod 10 and the second connecting rod 11, one end of the first connecting rod 10 is rotatably arranged on the front side and the rear side of the outer side of the upper first fixed shaft 8, one end of the first connecting rod 10 is rotatably arranged on the front side and the rear side of the outer side of the lower second fixed shaft 9, one end of the second connecting rod 11 is rotatably arranged on the front side and the rear side of the outer side of the lower first fixed shaft 8, one end of the second connecting rod 11 is rotatably arranged at the front side and the rear side of the outer side of the upper second fixed shaft 9, one end of the third fixed shaft 12 is rotatably arranged at the middle of the front side of the front second connecting rod 11, one end of the third fixed shaft 12 is rotatably arranged at the middle of the front side of the rear second connecting rod 11, the third fixed shaft 12 can support the midpoint position of the first connecting rod 10 and the second connecting rod 11 to ensure the stable structure during rotation, the third mounting plate 13 is fixedly arranged at the four corners of the top of the bottom plate 1, the fourth fixed shaft 14 is fixedly arranged between the inner sides of the third mounting plates 13 at the front side and the rear side, one end of the air pressure rod 15 is rotatably arranged at the outer side of the fourth fixed shaft 14, one end of the air pressure rod 15 is rotatably arranged at the middle of the outer side of the third fixed shaft 12, the air pressure rod 15 can increase the internal energy of internal gas through being stretched or compressed, and then energy dissipation is carried out to the kinetic energy that vibrations produced, and slowly reset when not atress, again energy is slowly converted into kinetic energy, the cross-sectional shape of elastic plate 16 is half ellipse, elastic plate 16 adopts 65Mn material to make, elastic plate 16 converts kinetic energy into elastic potential energy through extrusion deformation, assist in carrying out energy dissipation, guide bar 17 fixed mounting is in the top four corners of bottom plate 1, spring 18 cup joints in the outside of guide bar 17, one end fixed mounting of spring 18 is at the top of bottom plate 1, one end fixed mounting of spring 18 is in the bottom of roof 2, spring 18 stores elastic potential energy through stretching and shortening, convert and energy dissipation to the kinetic energy that vibrations produced, roof 2 slidable mounting is between the outside of a plurality of guide bars 17.

In this embodiment, the lengths of the first connecting rod 10 and the second connecting rod 11 are the same, and the initial included angle between the first connecting rod 10 and the second connecting rod 11 is twenty-five degrees, and it should be noted that the limiting length and the included angle can limit the initial height of the top plate 2, and make the top plate 2 move up and down when being stressed, so as to avoid tilting, and improve the service life of the trolley.

In this embodiment, the initial included angle of the two air pressure rods 15 is ninety degrees, the nitrogen is provided in the air pressure rods 15, the initial pressure in the air pressure rods 15 is set to two atmospheric pressure values, it is to be noted that the air pressure rods 15 can slowly accumulate and release energy in the process of participating in energy dissipation, and further the situation that the vibration frequency generated during the vibration reduction of the springs 18 is increased can be avoided, and the vibration reduction effect is improved.

In this embodiment, the top of the guide rod 17 is slightly higher than the top of the top plate 2, and a polytetrafluoroethylene layer is disposed on the surface of the guide rod 17, which needs to be noted that the polytetrafluoroethylene layer can make the top plate 2 receive smaller friction force when moving up and down, so that the top plate 2 can be guided by the guide rod 17 conveniently, and further the top plate 2 can be stressed uniformly and damage can be avoided.

Through the structure, the damping chassis for the commercial super-cart can realize damping effect through various structures, can avoid the conditions of reduced amplitude and improved vibration frequency while realizing damping, further greatly avoid damaging commercial super-cargoes, ensure that the small cart has better damping effect, has higher safety of transported cargoes, can guide and support through the periphery and the middle point, avoid the inclination of the top plate 2 when moving up and down, further ensure that the top plate 2 is stressed uniformly and avoid damage, improve the service life of the small cart, and ensure that when the commercial super-cart is used, if jolt and vibration occur in the process of transporting the cargoes, the first mounting plate 6 and the second mounting plate 7 slide outwards and drive the first connecting rod 10 and the second connecting rod 11 to rotate, and then the height of the third fixed shaft 12 is reduced, when the height of the third fixed shaft 12 is reduced, the air pressure rod 15 is extruded to shorten the length of the third fixed shaft, the internal air pressure is increased, and then the kinetic energy generated by vibration is converted into the internal energy of the internal air, meanwhile, the top of the elastic plate 16 is downwards extruded by the top plate 2, so that the elastic plate 16 deforms to convert the kinetic energy into elastic potential energy, meanwhile, when the outer side of the guide rod 17 downwards moves, the top plate 2 compresses the spring 18 to deform and shorten the elastic potential energy for storing the elastic potential energy, and then when the guide rod 17 is not stressed, the elastic potential energy and the internal energy of the air are converted into the kinetic energy to enable the top plate 2 to rise, and due to the hysteresis of the energy conversion of the air pressure rod 15, the time for energy conversion is prolonged in the energy conversion process, and then the vibration frequency is reduced while the vibration amplitude is reduced.

The damping chassis for the commercial supercart provided by the utility model is described in detail above. The principles and embodiments of the present utility model have been described herein with reference to specific examples, which are intended to be merely illustrative of the methods of the present utility model and their core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims

1. A shock absorbing chassis for a commercial supercart, comprising:

the automatic feeding device comprises a bottom plate (1) and a top plate (2), wherein universal wheels (3) are rotatably arranged at four corners of the bottom plate (1), the universal wheels (3) are slidably arranged at the top of the ground of a market supermarket, a feeding hopper (4) is fixedly arranged at the left side of the top plate (2), and a handle (5) is fixedly arranged at the right side of the top plate (2);

a damping assembly mounted on the bottom plate (1) and the top plate (2);

and the guide assembly is arranged on the bottom plate (1) and the top plate (2).

2. The damping chassis for a commercial supercart according to claim 1, wherein the damping assembly comprises a first mounting plate (6), a second mounting plate (7), a first fixed shaft (8), a second fixed shaft (9), a first connecting rod (10), a second connecting rod (11) and a third fixed shaft (12), the first mounting plate (6) is slidably mounted on the front and rear sides of the top left side of the bottom plate (1) and the front and rear sides of the bottom left side of the top plate (2), the second mounting plate (7) is slidably mounted on the front and rear sides of the top right side of the bottom plate (1) and the front and rear sides of the bottom right side of the top plate (2), the first fixed shaft (8) is fixedly mounted between the inner sides of the first mounting plate (6), one end of the first connecting rod (10) is rotatably mounted on the front and rear sides of the outer sides of the first fixed shaft (8), one end of the first connecting rod (10) is rotatably mounted on the front and rear sides of the second connecting rod (11) on the front and rear sides of the outer sides of the second fixed shaft (9), one end of the third dead axle (12) is rotatably arranged at the middle of the front side of the second connecting rod (11) in the front, and one end of the third dead axle (12) is rotatably arranged at the middle of the front side of the second connecting rod (11) in the rear.

3. The damping chassis for the commercial supercart according to claim 2, wherein the damping assembly further comprises a third mounting plate (13), a fourth dead axle (14) and a pneumatic rod (15), the third mounting plate (13) is fixedly mounted at four corners of the top of the bottom plate (1), the fourth dead axle (14) is fixedly mounted between the inner sides of the third mounting plate (13) at the front side and the rear side, one end of the pneumatic rod (15) is rotatably mounted at the outer side of the fourth dead axle (14), and one end of the pneumatic rod (15) is rotatably mounted at the middle of the outer side of the third dead axle (12).

4. A shock absorbing chassis for a commercial supercart according to claim 3, characterised in that the shock absorbing assembly further comprises an elastic plate (16), the elastic plate (16) has a semi-elliptical cross-sectional shape, and the elastic plate (16) is made of 65Mn material.

5. The damping chassis for a commercial supercart according to claim 4, characterized in that the first connecting rod (10) and the second connecting rod (11) have the same length, and the initial included angle between the first connecting rod (10) and the second connecting rod (11) is twenty-five degrees.

6. The damping chassis for a commercial supercart according to claim 5, wherein an initial included angle of two air pressure rods (15) is ninety degrees, nitrogen is arranged in the air pressure rods (15), and an internal initial pressure of the air pressure rods (15) is set to be two atmospheric pressure values.

7. The damping chassis for a commercial supercart according to claim 6, wherein the guide assembly comprises guide rods (17) and springs (18), the guide rods (17) are fixedly installed at four corners of the top of the bottom plate (1), the springs (18) are sleeved on the outer sides of the guide rods (17), one ends of the springs (18) are fixedly installed at the top of the bottom plate (1), one ends of the springs (18) are fixedly installed at the bottom of the top plate (2), and the top plate (2) is slidably installed between the outer sides of a plurality of the guide rods (17).

8. Damping chassis for commercial supertrolleys according to claim 7, characterized in that the top of the guide rod (17) is slightly higher than the top of the top plate (2), the surface of the guide rod (17) being provided with a polytetrafluoroethylene layer.