CN107826158B - Electronic commerce is with handcart that possesses electron braking system - Google Patents

Abstract

the invention discloses a trolley with an electronic brake system for electronic commerce, which structurally comprises a handle, a U-shaped support, a surrounding plate, a connecting block, a brake device, wheels, anti-slip pads and a fixed seat, wherein the anti-slip pads are fixedly arranged in the center of the top of the fixed seat and connected with the fixed seat through glue, four wheels are fixedly arranged at the bottoms of four corners of the fixed seat, and the brake device, a driving structure and a supporting structure jointly act to realize the electronic brake function of the trolley.

Description

Electronic commerce is with handcart that possesses electron braking system

Technical Field

the invention discloses a trolley with an electronic brake system for electronic commerce, and belongs to the field of trolleys.

background

The handcart is a transport vehicle which is pushed and pulled by people and is the ancestor of all vehicles. Although the material handling technology of the handcart is continuously developed, the handcart is still used as an indispensable handling tool till now, the handcart is widely applied in production and life because the handcart is low in manufacturing cost, simple in maintenance, convenient to operate and light in self weight, can work in places where motor vehicles are inconvenient to use, is very convenient to carry light objects in short distance, the currently used handcart cannot adjust the pushing angle according to the needs of people when goods are operated, and the object cannot be easily shoveled out when the object needs to be pushed, so that the trouble of carrying the objects is caused.

The trolley with the electronic brake system for electronic commerce in the prior art has no added brake effect and cannot be stopped quickly.

Disclosure of Invention

aiming at the defects in the prior art, the invention aims to provide a trolley with an electronic brake system for electronic commerce, so as to solve the problems that the trolley with the electronic brake system for electronic commerce cannot be rapidly stopped due to poor brake effect.

In order to achieve the purpose, the invention is realized by the following technical scheme: a trolley with an electronic brake system for electronic commerce structurally comprises a handle, a U-shaped support, a surrounding plate, a connecting block, a brake device, wheels, anti-slip pads and a fixed seat, wherein the anti-slip pads are fixedly arranged in the center of the top of the fixed seat and connected with the fixed seat through glue, and four wheels are fixedly arranged at the bottoms of four corners of the fixed seat;

The two connecting blocks are linearly arranged on two corners of the same side of the fixed seat, two ends of the U-shaped support are mechanically connected with the two connecting blocks, the coaming is fixedly welded at the center of the U-shaped support, the handle is arranged at the center of the top of the U-shaped support and matched with the U-shaped support, and the brake device is arranged in the fixed seat and mechanically connected with the wheels;

The brake device comprises a first movable plate, a conductive block, a first positive magnetic block, a first spring, a negative magnetic ball, a bearing structure, a first fixed block, a brake pad, a brake disc, a first movable block, an L-shaped connecting rod, a second spring, a power rod, a driving structure, a movable rod, a first rotating shaft, a rotating wheel and a second positive magnetic block;

The two conductive blocks are respectively and fixedly arranged at two ends of the bottom of the first movable plate and are vertically connected with the first movable plate, the negative pole magnetic block is fixedly arranged on the inner wall of the fixed seat, the first positive pole magnetic block and the second positive pole magnetic block are distributed below the two conductive blocks in a symmetrical structure, one end of the first spring is fixedly connected with the inner wall of the fixed seat, the other end of the first spring is fixedly connected with one side of the first positive pole magnetic block, which is far away from the second positive pole magnetic block, the bearing structure is arranged below the first spring and is parallel to the first spring, the negative pole magnetic ball is movably connected with the bearing structure, the two rotating wheels are arranged on the same vertical line in an up-down structure, the two rotating wheels are mechanically connected with the negative pole magnetic ball through a transmission chain, the two rotating wheels are matched with the transmission chain, and the movable rod is arranged between the two rotating wheels and is mechanically connected with the transmission chain, the first rotating shaft is arranged in the center of the movable rod and is mechanically matched with the movable rod, a driving structure is arranged below one end, away from the bearing structure, of the movable rod, the driving structure is movably connected with the movable rod, the power rod is arranged in the driving structure, the other end of the power rod is matched with the L-shaped connecting rod, the second spring is arranged at the bottom of the power rod and is fixedly connected with the inner wall of the L-shaped connecting rod, the first movable block is fixedly arranged at one end of the L-shaped connecting rod, the first fixed block and the first movable block are distributed in a symmetrical structure, two brake pads are arranged on one side, opposite to the first fixed block and the first movable block, of the first fixed block and the first movable block, and the brake disc is arranged between the first fixed block and the first;

The driving structure consists of a second movable block, a fixed plate, a connecting rod, a third spring, a strip-shaped inner wall, an inner wall, a movable rod, a second rotating shaft, a strip-shaped protruding wall body, a pressure block and a fourth spring;

The second movable block is arranged at the top of the inner wall, a fixed plate is arranged below the second movable block and fixedly connected with the second movable block, two connecting rods are arranged at two ends of the bottom of the fixed plate, the fixed plate and the connecting rods are welded into an integral structure, a strip-shaped inner wall is arranged at the bottom of the two connecting rods, the connecting rods penetrate through the strip-shaped inner wall, two ends of the strip-shaped inner wall are fixedly connected with the inner wall, strip-shaped protruding walls are arranged at two ends of the bottom of the strip-shaped inner wall and are attached to the inner wall, movable rods are arranged at the bottoms of the two strip-shaped protruding walls and are perpendicular to the strip-shaped protruding walls, a second rotating shaft is arranged on one side of the two movable rods, which is close to the inner wall, and is matched with the movable rods, and the third spring and the fourth spring are distributed on the upper surface and the lower surface of the strip-shaped inner wall, the pressure block is fixedly connected with the fourth spring, one end of the third spring is mechanically connected with the fixing plate, and the other end of the third spring is fixedly connected with the strip-shaped inner wall.

Furthermore, the bearing structure consists of a sliding block, a bearing rod, a third positive pole magnetic block, a U-shaped fixing frame and a sliding groove.

Furthermore, the sliding groove is fixedly installed on the wall body, the third positive pole magnetic block is parallel to the sliding groove, the sliding block is matched with the sliding groove, the sliding block is fixedly connected with the positive pole magnetic block, the supporting rod and the sliding block are positioned on the same horizontal line and are vertically connected with the third positive pole magnetic block, and the U-shaped fixing frame is fixedly connected with the wall body.

furthermore, the slide block drives the third positive pole magnetic block to slide and match in the slide groove, the third positive pole magnetic block and the first positive pole magnetic block repel each other, the third positive pole magnetic block moves downwards under the action of the repulsive force of the first positive pole magnetic block, the negative pole magnetic ball and the first positive pole magnetic block attract each other, and the negative pole magnetic ball drives the transmission chain to ascend to be matched with the driving structure mechanically, so that the electronic brake function of the trolley is realized.

furthermore, the movable plate I is arranged on a side panel of the fixed seat, which is provided with the U-shaped support, the movable plate I can drive the conductive block to move downwards by pressing the movable plate I, the conductive block is contacted with the positive magnetic block I, so that the positive magnetic block I generates larger magnetic force to repel the positive magnetic block I, the positive magnetic block I moves in the reverse direction, the negative magnetic ball is mutually attracted with the positive magnetic block I and moves upwards to drive the transmission chain to rotate, one end of the movable rod, which is far away from the negative magnetic ball, moves downwards and is mechanically matched with the driving structure, and the electronic braking function of the trolley is realized.

Advantageous effects

The invention is characterized in that two ends of a U-shaped bracket are fixedly connected with a fixed seat, a handle is fixedly arranged on a section of the U-shaped bracket parallel to the fixed seat, a surrounding plate is fixedly welded on the U-shaped bracket, a movable plate is pressed down, the movable plate drives a conductive block to move downwards, the conductive block is contacted with a positive magnetic block, so that the positive magnetic block generates larger magnetic force to repel the positive magnetic block, the positive magnetic block moves reversely, a negative magnetic ball attracts the negative magnetic ball, the negative magnetic ball moves upwards to drive a transmission chain to rotate, one end of a movable rod far away from the negative magnetic ball moves downwards, and applies a force to a second movable block, so that the second movable block moves downwards, a third spring is stressed to contract, a connecting rod moves downwards under the action of the second movable block, the connecting rod moves downwards to apply force to the movable rod, one end of the movable rod far away from a second rotating shaft uses the second rotating shaft as an origin, the movable rod rotates around the second rotating shaft in a radius mode, the fourth spring is fixedly connected with the pressure block, the pressure block loses resistance and moves downwards, the pressure block exerts a force on the power rod under the action of gravity to enable the power rod to rapidly move downwards, the internal pressure of the inner cavity of the L-shaped connecting rod is extruded, the internal air pressure drives the first movable block to move towards one end far away from the power rod, the brake pad and the brake disc are in close friction under the action of the first movable block, the moving kinetic energy is converted into heat energy after friction, and the vehicle is stopped;

the slide block drives the third positive pole magnetic block to slide and match in the slide groove, the third positive pole magnetic block and the first positive pole magnetic block repel each other, the third positive pole magnetic block moves downwards under the action of the repulsive force of the first positive pole magnetic block, the negative pole magnetic ball and the first positive pole magnetic block attract each other, the negative pole magnetic ball drives the transmission chain to ascend and is mechanically matched with the driving structure, and the electronic braking function of the trolley is realized

the electronic brake function of the trolley is realized under the combined action of the brake device, the driving structure and the bearing structure.

Drawings

other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural diagram of a cart with an electronic brake system for electronic commerce according to the present invention;

FIG. 2 is a schematic structural view of a brake device of a cart with an electronic brake system for electronic commerce according to the present invention;

fig. 3 is a schematic structural diagram of an operating state of the cart with an electronic brake system for electronic commerce according to the present invention;

fig. 4 is a schematic structural diagram of a driving structure of a cart with an electronic brake system for electronic commerce according to the present invention;

Fig. 5 is a schematic structural diagram of a supporting structure of a cart with an electronic brake system for e-commerce according to the present invention.

in the figure: a handle-1, a U-shaped bracket-2, a coaming-3, a connecting block-4, a brake device-5, wheels-6, an anti-skid pad-7, a fixed seat-8, a movable plate-501, a conductive block-502, a positive magnetic block-503, a spring-504, a negative magnetic ball-505, a supporting structure-506, a fixed block-507, a brake pad-508, a brake disc-509, a movable block-510, an L-shaped connecting rod-511, a spring-512, a power rod-513, a driving structure-514, a movable rod-515, a rotating shaft-516, a rotating wheel-517, a positive magnetic block-518, a movable block-5141, a fixed plate-5142, a connecting rod-5143, a spring-5144, a spring-6, a non-slip mat-7, a fixed seat-8, a movable plate-501, a conductive, The magnetic block comprises a strip-shaped inner wall-5145, an inner wall-5146, a movable rod-5147, a second rotating shaft-5148, a strip-shaped convex wall-5149, a pressure block-51410, a fourth spring-51411, a sliding block-5061, a supporting rod-5062, a third positive magnetic block-5063, a U-shaped fixed frame-5064 and a sliding groove-5065.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1 to 5, the present invention provides a technical solution of a cart with an electronic brake system for electronic commerce: the structure of the anti-skid device comprises a handle 1, a U-shaped support 2, a coaming 3, connecting blocks 4, a brake device 5, wheels 6, anti-skid pads 7 and a fixing seat 8, wherein the anti-skid pads 7 are fixedly arranged at the center of the top of the fixing seat 8, the anti-skid pads 7 are connected with the fixing seat 8 in a gluing mode, the four wheels 6 are arranged at the bottoms of the four corners of the fixing seat 8, the two connecting blocks 4 are linearly arranged at the two corners of the same side of the fixing seat 8, the two ends of the U-shaped support 2 are mechanically connected with the two connecting blocks 4, the coaming 3 is fixedly welded at the center of the U-shaped support 2, the handle 1 is arranged at the center of the top of the U-shaped support 2 and matched with the U-shaped support 2, the brake device 5 is arranged in the fixing seat 8 and mechanically connected with the wheels 6, the brake comprises a first positive magnetic block 503, a first spring 504, a negative magnetic ball 505, a supporting structure 506, a first fixed block 507, a brake pad 508, a brake disc 509, a first movable block 510, an L-shaped connecting rod 511, a second spring 512, a power rod 513, a driving structure 514, a movable rod 515, a first rotating shaft 516, a rotating wheel 517 and a second positive magnetic block 518, wherein the two conductive blocks 502 are respectively and fixedly arranged at two ends of the bottom of the first movable plate 501 and vertically connected with the first movable plate 501, the negative magnetic block 518 is fixedly arranged on the inner wall of the fixed seat 8, the first positive magnetic block 503 and the second positive magnetic block 518 are distributed below the two conductive blocks 502 in a symmetrical structure, one end of the first spring 504 is fixedly connected with the inner wall of the fixed seat 8, the other end of the first spring 504 is fixedly connected with one side of the first positive magnetic block 503, which is far away from the second positive magnetic block 518, the supporting structure 506 is arranged below the first spring 504 and is parallel to the first spring 504, the negative pole magnetic ball 505 is movably connected with the bearing structure 506, the two rotating wheels 517 are arranged and distributed on the same vertical line in an up-and-down structure, the two rotating wheels 517 are mechanically connected with the negative pole magnetic ball 505 through a transmission chain, the two rotating wheels 517 are matched with the transmission chain, the movable rod 515 is arranged between the two rotating wheels 517 and is mechanically connected with the transmission chain, the first rotating shaft 516 is arranged in the center of the movable rod 515 and is mechanically matched with the movable rod 515, a driving structure 514 is arranged below one end of the movable rod 515 far away from the bearing structure 506, the driving structure 514 is movably connected with the movable rod 515, the power rod 513 is arranged in the driving structure 514, the other end of the power rod is matched with the L-shaped connecting rod 511, the second spring 512 is arranged at the bottom of the power rod 513 and is fixedly connected with the inner wall of the L-shaped connecting rod 511, the first movable block 510 is fixedly arranged at one end of the L-shaped connecting rod, a fixed block 507 and a movable block 510 be the symmetrical structure and distribute, a fixed block 507 and a movable block 510 on the relative one side all be equipped with two brake pads 508, brake disc 509 locate between a fixed block 507 and a movable block 510, drive structure 514 constitute by No. two movable blocks 5141, fixed plate 5142, connecting rod 5143, No. three spring 5144, bar inner wall 5145, inner wall 5146, movable rod 5147, No. two pivot 5148, the protruding wall body 5149 of bar, pressure block 51410, No. four spring 51411, No. two movable blocks 5141 install at inner wall 5146 top, No. two movable blocks 5141 below be equipped with fixed plate 5142, fixed plate 5142 and No. two movable blocks 5141 fixed connection, fixed plate 5142 bottom both ends be equipped with two connecting rods 5143, fixed plate 5142 and connecting rod 5143 weld into an organic whole structure, two connecting rod 5143 bottom be equipped with bar inner wall 5145, connecting rod 5143 run through bar inner wall 5145, bar inner wall 5145 both ends all with inner wall 5146 fixed connection, bar inner wall 5145 bottom both ends all be equipped with the protruding wall 5149 of bar, the protruding wall 5149 of bar laminate with inner wall 5146 mutually, the protruding wall 5149 bottom of two bars all be equipped with the movable rod 5147, the protruding wall 5149 mutually perpendicular of movable rod 5147 and bar, two movable rods 5147 all be equipped with No. two pivot 5148 on being close to one side of inner wall 5146, No. two pivot 5148 cooperate with the movable rod 5147, No. three spring 5144 and No. four spring 51411 be that upper and lower structure distributes on bar inner wall 5145 two sides, pressure piece 51410 and No. four spring 51411 fixed connection, No. three spring 5144's one end and fixed plate 5142 mechanical connection, the other end and bar inner wall 5145 fixed connection, bearing structure 506 by slider 5061, support structure, The bearing rod 5062, the third positive pole magnetic block 5063, the U-shaped fixing frame 5064 and the sliding groove 5065 are formed, the sliding groove 5065 is fixedly installed on a wall body, the third positive pole magnetic block 5063 is parallel to the sliding groove 5065, the sliding block 5061 is matched with the sliding groove 5065, the sliding block 5061 is fixedly connected with the positive pole magnetic block 5063, the bearing rod 5062 and the sliding block 5061 are positioned on the same horizontal line and are vertically connected with the third positive pole magnetic block 5063, the U-shaped fixing frame 5064 is fixedly connected with the wall body, the sliding block 5061 drives the third positive pole magnetic block 5063 to slide and match in the sliding groove 5065, the third positive pole magnetic block 5063 and the first positive pole magnetic block 503 repel each other, the third positive pole magnetic block 5063 moves downwards under the repulsive force of the first positive pole magnetic block 503, the negative pole magnetic ball 505 and the first positive pole magnetic block 503 attract each other, the negative pole magnetic ball 505 drives the negative pole magnetic ball 505 to ascend to be mechanically matched with the driving structure 514, the electronic brake function of the trolley is realized, the first movable plate 501 is mounted on a side panel of the fixed seat 8 on which the U-shaped bracket 2 is mounted, the first movable plate 501 can be pressed, the first movable plate 501 drives the conductive block 502 to move downwards, the conductive block 502 is contacted with the first positive magnetic block 503, so that the first positive magnetic block 503 generates a larger magnetic force to repel the other positive magnetic block 503, the other positive magnetic block 503 moves in a reverse direction, the negative magnetic ball 505 attracts the negative magnetic ball 505 to move upwards, the transmission chain is driven to rotate, one end of the movable rod 515, which is far away from the negative magnetic ball 505, moves downwards and is mechanically matched with the driving structure 514, and the electronic brake function of the trolley is realized.

The brake pad 508 of the present invention is a medium for rubbing the tire and the ground to convert the kinetic energy of the vehicle into the heat energy after rubbing and stop the vehicle.

Two ends of a U-shaped support 2 are fixedly connected with a fixed seat 8, a handle 1 is fixedly arranged on a section of the U-shaped support 2 parallel to the fixed seat 8, a surrounding plate 3 is fixedly welded on the U-shaped support 2, by pressing down a movable plate 501, the movable plate 501 drives a conductive block 502 to move downwards, the conductive block 502 is contacted with a positive magnetic block 503 to enable the positive magnetic block 503 to generate larger magnetic force to repel with another positive magnetic block 503, the other positive magnetic block 503 moves reversely, a negative magnetic ball 505 is mutually attracted with the negative magnetic block and the negative magnetic ball 505 moves upwards to drive a transmission chain to rotate, one end of a movable rod 515 far away from the negative magnetic ball 505 moves downwards and applies a force to a second movable block 5141 to enable the second movable block 5141 to move downwards, a third spring 5144 is stressed to shrink, a connecting rod 5143 moves downwards under the action of the second movable block 5141, the connecting rod 43 moves downwards to apply force to the movable rod 5147, one end of the movable rod 5147, which is far away from the second rotating shaft 5148, uses the second rotating shaft 5148 as an original point, the movable rod 5147 rotates around the second rotating shaft 5148 by taking a radius, the fourth spring 51411 is fixedly connected with the pressure block 51410, the pressure block 51410 loses resistance and moves downwards, the pressure block 51410 exerts a force on the power rod 513 under the action of gravity, so that the power rod 513 moves downwards rapidly, the internal pressure of the inner cavity of the L-shaped connecting rod 511 is squeezed, the internal pressure drives the first movable block 510 to move towards the end far away from the power rod 513, the brake pad 508 and the brake disc 509 are close to rub under the action of the first movable block 510, the moving kinetic energy is converted into heat energy after friction, and the vehicle is stopped, so that the electronic brake function of the handcart is realized.

the invention solves the problem that the trolley with the electronic brake system for the electronic commerce has no additional brake effect and cannot be rapidly stopped, and the electronic brake function of the trolley is realized under the combined action of the brake device 5, the driving structure 514 and the supporting structure 506 through the mutual combination of the components.

while there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (1)

1. The utility model provides an electron commercial affairs are with handcart that possesses electronic brake system, its structure includes handle (1), U type support (2), bounding wall (3), connecting block (4), brake equipment (5), wheel (6), slipmat (7), fixing base (8) top central authorities fixed slipmat (7) that are equipped with, slipmat (7) glue with fixing base (8) and be connected, wheel (6) be equipped with four and fixed mounting in four angle bottoms of fixing base (8), its characterized in that:

The two connecting blocks (4) are arranged on two corners of the same side of the fixed seat (8) in a linear manner, two ends of the U-shaped support (2) are mechanically connected with the two connecting blocks (4), the coaming (3) is fixedly welded in the center of the U-shaped support (2), the handle (1) is installed in the center of the top of the U-shaped support (2) and matched with the U-shaped support (2), and the brake device (5) is installed in the fixed seat (8) and mechanically connected with the wheels (6);

The brake device (5) consists of a first movable plate (501), a conductive block (502), a first positive magnetic block (503), a first spring (504), a negative magnetic ball (505), a bearing structure (506), a first fixed block (507), a brake pad (508), a brake disc (509), a first movable block (510), an L-shaped connecting rod (511), a second spring (512), a power rod (513), a driving structure (514), a movable rod (515), a first rotating shaft (516), a rotating wheel (517) and a second positive magnetic block (518);

the two conductive blocks (502) are respectively and fixedly arranged at two ends of the bottom of the first movable plate (501) and are vertically connected with the first movable plate (501), the negative pole magnetic block (518) is fixedly arranged on the inner wall of the fixed seat (8), the first positive pole magnetic block (503) and the second positive pole magnetic block (518) are distributed below the two conductive blocks (502) in a symmetrical structure, one end of the first spring (504) is fixedly connected with the inner wall of the fixed seat (8), the other end of the first spring (504) is fixedly connected with one side of the first positive pole magnetic block (503) far away from the second positive pole magnetic block (518), the bearing structure (506) is arranged below the first spring (504) and is parallel to the first spring (504), the negative pole magnetic ball (505) is movably connected with the bearing structure (506), the rotating wheel (517) is provided with two rotating wheels which are distributed on the same vertical line in an up-down structure, the two rotating wheels (517) are mechanically connected with the negative magnetic ball (505) through a transmission chain, the two rotating wheels (517) are matched with the transmission chain, the movable rod (515) is installed between the two rotating wheels (517) and is mechanically connected with the transmission chain, the first rotating shaft (516) is installed in the center of the movable rod (515) and is mechanically matched with the movable rod (515), a driving structure (514) is arranged at one end, far away from the bearing structure (506), of the movable rod (515), the driving structure (514) is movably connected with the movable rod (515), the power rod (513) is installed in the driving structure (514), the other end of the power rod is matched with the L-shaped connecting rod (511), the second spring (512) is installed at the bottom of the power rod (513) and is fixedly connected with the inner wall of the L-shaped connecting rod (511), the first movable block (510) is fixedly installed at one end of the L-shaped connecting rod (511), the first fixed block (507) and the first movable block (510) are distributed in a symmetrical structure, two brake pads (508) are arranged on one side of the first fixed block (507) opposite to the first movable block (510), and the brake disc (509) is arranged between the first fixed block (507) and the first movable block (510);

The driving structure (514) consists of a second movable block (5141), a fixed plate (5142), a connecting rod (5143), a third spring (5144), a strip-shaped inner wall (5145), an inner wall (5146), a movable rod (5147), a second rotating shaft (5148), a strip-shaped convex wall body (5149), a pressure block (51410) and a fourth spring (51411);

no. two movable block (5141) install at inner wall (5146) top, No. two movable block (5141) below be equipped with fixed plate (5142), fixed plate (5142) and No. two movable block (5141) fixed connection, fixed plate (5142) bottom both ends be equipped with two connecting rod (5143), fixed plate (5142) and connecting rod (5143) weld into a body structure, two connecting rod (5143) bottom be equipped with bar inner wall (5145), connecting rod (5143) run through bar inner wall (5145), bar inner wall (5145) both ends all with inner wall (5146) fixed connection, bar inner wall (5145) bottom both ends all be equipped with protruding wall body of bar (5149), protruding wall body of bar (5149) laminate mutually with inner wall (5146), protruding wall body of two bar (5149) bottoms all be equipped with movable rod (5147), movable rod (5147) and bar protruding wall body of bar (5149) mutually perpendicular, two rotating shafts (5148) are respectively arranged on one sides of the two movable rods (5147) close to the inner wall (5146), the two rotating shafts (5148) are matched with the movable rods (5147), the three springs (5144) and the four springs (51411) are distributed on the upper surface and the lower surface of the strip-shaped inner wall (5145) in an up-and-down structure, the pressure block (51410) is fixedly connected with the four springs (51411), one end of each three spring (5144) is mechanically connected with the fixed plate (5142), and the other end of each three spring is fixedly connected with the strip-shaped inner wall (5145);

The bearing structure (506) consists of a sliding block (5061), a bearing rod (5062), a third positive pole magnetic block (5063), a U-shaped fixing frame (5064) and a sliding groove (5065);

the sliding groove (5065) is fixedly installed on a wall, the third positive pole magnetic block (5063) and the sliding groove (5065) are parallel to each other, the sliding block (5061) is matched with the sliding groove (5065), the sliding block (5061) is fixedly connected with the positive pole magnetic block (5063), the supporting rod (5062) and the sliding block (5061) are positioned on the same horizontal line and are vertically connected with the third positive pole magnetic block (5063), and the U-shaped fixing frame (5064) is fixedly connected with the wall;

By pressing down the first movable plate (501), the first movable plate (501) drives the conductive block (502) to move downwards, the conductive block (502) is contacted with the first positive magnetic block (503) to enable the first positive magnetic block (503) to generate larger magnetic force to repel the other positive magnetic block (503), the other positive magnetic block (503) moves reversely, the negative magnetic ball (505) is mutually attracted with the negative magnetic ball (505) and moves upwards to drive the transmission chain to rotate, one end of the movable rod (515) far away from the negative magnetic ball (505) moves downwards and exerts a force on the second movable block (5141) to enable the second movable block (5141) to move downwards, the third spring (5144) is stressed to contract, the connecting rod (5143) moves downwards under the action of the second movable block (5141), the connecting rod (5143) moves downwards to apply a force to the movable rod (5147), one end of the movable rod (5147) far away from the second rotating shaft (5148) uses the second rotating shaft (5148) as an original point, the movable rod (5147) rotates around the second rotating shaft (5148) in a radial mode, the fourth spring (51411) is fixedly connected with the pressure block (51410), the pressure block (51410) loses resistance and moves downwards, the pressure block (51410) exerts a force on the power rod (513) under the action of gravity to enable the power rod (513) to rapidly move downwards, the internal pressure of the inner cavity of the L-shaped connecting rod (511) is squeezed, the internal pressure drives the first movable block (510) to move towards one end far away from the power rod (513), the brake pad (508) and the brake disc (509) are close to and rub under the action of the first movable block (510), the moving kinetic energy is converted into heat energy after friction, the vehicle is stopped, and the electronic brake function of the trolley is achieved.