An article delivery cart

Abstract

The application discloses an article delivery trolley, which is internally provided with a rack, a movable stacking platform, a lifting platform, a temporary storage channel of a box, a top conveying belt and a bottom conveying belt. The rack is provided with a box cavity which is arranged in a longitudinal and lateral manner and has a lateral opening and a movable box. The movable stacking platform is arranged at the lateral side of the rack and comprises a stacking platform body and a first driving mechanism for driving the longitudinal and lateral movement of the stacking platform body. The stacking platform body is provided with a second driving mechanism and a third driving mechanism for driving the movement of the box. The lifting platform comprises a lifting platform body and a fourth driving mechanism. The lifting platform body is provided with a fifth driving mechanism for driving the movement of the box. The top conveying belt is arranged above the movable stacking platform and is used for sending the box from the temporary storage channel to the lifting platform. The bottom conveying belt is arranged below the movable stacking platform and is used for reverse conveying. The trolley compartment is provided with a taking door corresponding to the lifting platform and a dropping door corresponding to the top of the temporary storage channel of the box. The article delivery trolley can store articles through one inlet, is convenient and fast, and can improve the space utilization of the trolley compartment.

Description

TECHNICAL FIELD

[0001] The present application relates to an article delivery trolley, belonging to the technical field of cargo transport vehicles. BACKGROUND

[0002] The existing article delivery trolley usually sets multiple boxes in the carriage, each box has a box door, when taking the article, the box where the article is located is confirmed and the corresponding box door is opened, and correspondingly, when putting the delivery article into the box, the article needs to be manually ensured to correspond to the box, and the article needs to be registered and the corresponding box needs to be found and stored, which needs to be checked accurately.

[0003] In addition, since each box needs a box door, the box door must be set on the appearance surface of the carriage to be operated, so the boxes are arranged opposite to each other, and the trolley is designed as a narrow body structure to reduce the depth of the boxes, and the number of articles delivered by a single trolley is small. SUMMARY

[0004] In view of the defects of the prior art, the present application provides an article delivery trolley, which solves the problem that the article delivery trolley needs to open and close the box door of each box separately when delivering articles, and carefully checks the problem, and solves the problem that the trolley needs to be designed as a narrow body structure to reduce the waste of space, and the number of articles delivered at a time is small.

[0005] The technical scheme of the present application is as follows: an article delivery trolley, comprising a carriage, the carriage is provided with a goods shelf, a movable stacking platform, a lifting platform, a box temporary storage channel, a top conveyor belt and a bottom conveyor belt, the goods shelf comprises a plurality of longitudinally and transversely arranged side opening cavities, the cavities are provided with movable boxes, the movable stacking platform is arranged on the side of the goods shelf to receive or send the boxes from the opening of the cavity, the lifting platform and the box temporary storage channel are arranged on the front and rear sides of the movable stacking platform respectively, the top conveyor belt is located above the movable stacking platform and is conveyed from the box temporary storage channel to the lifting platform, the bottom conveyor belt is located below the movable stacking platform and is conveyed from the lifting platform to the box temporary storage channel, a taking door is arranged on the carriage corresponding to the lifting platform, and a putting door is arranged on the carriage corresponding to the top of the box temporary storage channel.

[0006] The moving stacking platform comprises a stacking platform body and a first driving mechanism for driving the stacking platform body to move longitudinally and transversely, the stacking platform body is provided with a second driving mechanism for driving the container to move leftward and rightward and a third driving mechanism for driving the container to move forward and backward, the lifting platform comprises a lifting platform body and a fourth driving mechanism for driving the lifting platform body to move upward and downward, the lifting platform body is provided with a fifth driving mechanism for driving the container to move forward and backward, and the top of the container temporary storage channel is provided with a push plate for pushing the container in the container temporary storage channel to the top conveying belt.

[0007] Further, the shelves are arranged in pairs on the left and right sides of the moving stacking platform. Two shelves share one moving stacking platform, which can improve the space utilization of the carriage.

[0008] Further, in order to improve the stability of the container when entering and leaving the shelf and transferring between the stacking platform body and the lifting platform body, the second driving mechanism, the third driving mechanism and the fifth driving mechanism are lifting gear mechanisms, the lifting gear mechanism comprises a lifting bracket, the lifting bracket is provided with a driving motor and a driving gear, the driving gear is driven to rotate by the driving motor, the bottom of the container is provided with a left-right toothed bar and a front-back toothed bar, the rotation axes of the gears of the second driving mechanism and the third driving mechanism are perpendicular to each other, the gear of the second driving mechanism is used for meshing with the left-right toothed bar, and the gears of the third driving mechanism and the fifth driving mechanism are used for meshing with the front-back toothed bar.

[0009] Further, the bottom of the container temporary storage channel is provided with a lifting assembly for lifting the container upward, the side wall of the container temporary storage channel is provided with a turnover baffle above the lifting assembly and above the drop door, the turnover baffle is upwardly rotated when the container moves upward, and the turnover baffle is downwardly flipped to a limit position to block the container from falling when the turnover baffle is not pushed by the container.

[0010] Further, in order to avoid accidental falling of the container during transportation, the two side walls at the entrance of the container cavity are provided with lifting stop rods, and the lifting stop rods are used for blocking the container from sliding out of the side of the container cavity.

[0011] Further, the two side walls at the entrance of the container cavity are provided with stop rod rotating shafts, the lifting stop rods and the stop rod rotating shafts cooperate to form a cam groove lifting mechanism for lifting, the stop rod rotating shafts are provided with a driving gear, the moving stacking platform is provided with a frame, the first driving mechanism drives the frame to move, the stacking platform body is arranged in the frame, the frame is provided with a translation mechanism for driving the stacking platform body to move leftward and rightward, the side edge of the stacking platform body is provided with a driving gear rack, and the driving gear rack meshes with the driving gear to drive the stop rod rotating shaft to rotate when the stacking platform body moves leftward and rightward.

[0012] Further, vertical grooves are arranged on both sides of the entrance of the goods cavity, and the rotating shaft of the blocking rod is arranged in the grooves, and the lifting blocking rod is guided by the grooves.

[0013] Further, in order to reduce the space occupation of the empty goods box in the goods box temporary storage channel, the goods box comprises a fixed bottom box and a telescopic upper box, the telescopic upper box comprises telescopic struts arranged at four corners of the goods box and a flexible fence arranged between the telescopic struts, the lifting platform comprises a pressing mechanism for pressing the telescopic struts to shorten the telescopic struts, and the top of the goods box temporary storage channel is provided with a supporting plate for pushing the telescopic struts.

[0014] Further, the telescopic struts comprise at least two telescopic sections sleeved with each other, and the ends of the telescopic sections matched with each other are provided with pin holes and a telescopic pin, and the telescopic pin is pushed to retract when the telescopic sections are pressed.

[0015] Further, the outer side wall of the fixed bottom box is provided with guide balls, and the side wall of the goods cavity is provided with guide grooves matched with the guide balls. The goods box is accurately guided when entering the goods cavity.

[0016] The technical solution provided by the application has the following advantages:

[0017] The application utilizes the mobile stacking platform to take and place the goods box from the goods shelf, and the lifting platform to transfer the goods box. The lifting platform, the bottom conveyor belt, the goods box temporary storage channel and the top conveyor belt constitute a circulating conveying structure of the goods box around the mobile stacking platform, so that the taking operation is performed through a taking door, and the placing operation is performed through a placing door. The operation of placing the goods to be delivered into the trolley is simple, and manual checking of the specific goods box is not needed. In addition, since a separate warehouse door does not need to be arranged for the goods cavity, a plurality of mechanisms can be arranged on one trolley to fully utilize the carrying space of the trolley, and the trolley does not need to be designed as a narrow body structure. The space utilization rate can be further improved by adopting the mode that two goods shelves share one mobile stacking platform. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the external structure of the article delivery trolley from the front view.

[0019] Figure 2 is a schematic view of the external structure of the article delivery trolley from the rear view.

[0020] Figure 3 is a schematic view of the internal structure of the article delivery trolley (one side of the goods shelf is not shown).

[0021] Figure 4 is a schematic view of the goods shelf structure of the article delivery trolley.

[0022] Figure 5 is a single cargo cavity structure schematic diagram of the goods shelf of the article delivery trolley of the embodiment.

[0023] Figure 6 is a structure schematic diagram of the moving stacking platform of the article delivery trolley of the embodiment.

[0024] Figure 7 is a structure schematic diagram of the frame and the stacking platform body of the moving stacking platform of the article delivery trolley of the embodiment.

[0025] Figure 8 is a partial structure schematic diagram of the lifting platform of the article delivery trolley of the embodiment.

[0026] Figure 9 is a structure schematic diagram of the goods box temporary storage channel of the article delivery trolley of the embodiment.

[0027] Figure 10 is a rear side structure schematic diagram of the goods box temporary storage channel of the article delivery trolley of the embodiment.

[0028] Figure 11 is a structure schematic diagram of the goods box of the article delivery trolley of the embodiment.

[0029] Figure 12 is a cut structure schematic diagram of the goods box of the article delivery trolley of the embodiment.

[0030] Figure 13 is a bottom surface structure schematic diagram of the goods box of the article delivery trolley of the embodiment. DETAILED DESCRIPTION

[0031] The application will be further described below in conjunction with the embodiments, which should be understood as only for illustrating the application but not for limiting the scope of the application. After reading the description, those skilled in the art can make various modifications to the equivalent forms of the description, which all fall within the scope defined by the appended claims of the application.

[0032] Please combine Figures 1 to 3As shown, the article delivery trolley of the embodiment comprises a carriage 1, which is provided with a goods shelf 2, a movable stacking platform 3, a lifting platform 4, a temporary storage channel 5 for the goods box, a top conveying belt 6 and a bottom conveying belt 7. The goods shelf 2 comprises a plurality of laterally open goods cavities 201 arranged in a longitudinal and lateral matrix. The goods cavities 201 are provided with movable goods boxes 8. The movable stacking platform 3 is arranged at the side of the goods shelf 2 and used to receive or send the goods boxes 8 from the openings of the goods cavities 201. The lifting platform 4 and the temporary storage channel 5 are arranged at the front and rear sides of the movable stacking platform 3, respectively. The top conveying belt 6 is arranged above the movable stacking platform 3 and used to convey the goods boxes from the temporary storage channel 5 to the lifting platform 4. The bottom conveying belt 7 is arranged below the movable stacking platform 3 and used to convey the goods boxes from the lifting platform 4 to the temporary storage channel 5. A pickup door 101 is arranged on the carriage 1 at a position corresponding to the lifting platform 4. A drop door 102 is arranged on the carriage 1 at a position corresponding to the top of the temporary storage channel 5. The goods shelf 2 can be arranged at the left and right sides of the movable stacking platform 3 in pairs. A plurality of such structures can be arranged on one trolley to fully utilize the lateral space of the trolley, so that the trolley does not need to be designed in a narrow body.

[0033] Specifically, please refer to Figure 4 and Figure 5 As shown, the goods cavities 201 on the goods shelf 2 are arranged in a longitudinal and lateral matrix for storing the goods boxes 8. The bottom of the goods cavities 201 is recessed by a portion for accommodating the movable stacking platform body 301. When the goods box 8 is in the goods cavity 201, a portion of the bottom surface is in a suspended state, so that the stacking platform body 301 can drive the goods box 8 to move out. The outer side wall of the fixed bottom box 803 of the goods box 8 is provided with a guide ball 807. The side wall of the goods cavity 201 is also provided with a guide groove 202, which is used to cooperate with the guide ball 807 on the goods box 8 to ensure that the goods box 8 accurately enters the goods cavity 201.

[0034] The side walls at the entrance of the goods cavity 201 are provided with vertical sliding grooves 203. The sliding grooves 203 are provided with rotatable stop rod shafts 204. The upper part of the stop rod shaft 204 is sleeved with a lifting stop rod 205. The surface of the stop rod shaft 204 is provided with a spiral groove 204a. The end of the sleeved lifting stop rod 205 moves in the spiral groove 204a to form a cam groove lifting mechanism. The end of the lifting stop rod 205 is also located in the sliding groove 203 and guided up and down by the sliding groove 203. In this way, when the stop rod shaft 204 rotates, the lifting stop rod 205 moves up and down along the sliding groove 203. When the lifting stop rod 205 rises, it does not affect the entry and exit of the goods box 8. After the goods box 8 enters the goods cavity 201, the lifting stop rod 205 descends to block the goods box 8 to prevent it from sliding out of the goods cavity 201.

[0035] A toggle gear 206 is fixedly mounted at the lower portion of the lever shaft 204. When the toggle gear 206 is engaged, it drives the lever shaft 204 to rotate, thereby achieving the up and down movement of the lifting lever 205. Engaging with the toggle gear 206 is a toggle rack 310 provided on the stacking platform body 301. For details, see the structural description of the mobile stacking platform 3.

[0036] Please combine Figure 6 、 Figure 7 As shown, the mobile stacking platform 3 includes a frame 302, a stacking platform body 301, and a first drive mechanism that drives the stacking platform body 301 to move vertically and horizontally. The frame 302 is connected to the stacking platform body 301. The first drive mechanism drives the frame 302 to move vertically and horizontally so that the stacking platform body 301 reaches the corresponding cargo cavity 201 position. The first drive mechanism includes a longitudinal (up and down direction) screw rod 303, a longitudinal bracket 304, a transverse (fore and aft direction) screw rod 305, a transverse bracket 306, a longitudinal slide rod 307, and a transverse slide rod 308. The frame 302 slides longitudinally with the longitudinal slide rod 307 and slides transversely with the transverse slide rod 308. The transverse slide rod 308 is driven by the longitudinal screw rod 303 to move up and down along the longitudinal bracket 304, causing the frame 302 to move along the longitudinal slide rod 307. The longitudinal slide rod 307 is driven by the transverse screw rod 305 to move forward and backward along the transverse bracket 306, causing the frame 302 to move along the transverse slide rod 308.

[0037] The stacking platform body 301 is mounted on a frame 302. The frame 302 is equipped with a translation mechanism that drives the stacking platform body 301 to move left and right. Specifically, the translation mechanism includes a translation screw 309. One side of the stacking platform body 301 and the translation screw 309 form a screw-nut kinematic pair. Furthermore, a shifting rack 310 is machined onto the side of the stacking platform body 301. When the translation mechanism drives the stacking platform body 301 to translate, the shifting rack 310 engages with the shifting gear 206, thereby driving the shift lever shaft 204 to rotate.

[0038] The stacking platform body 301 is provided with a second drive mechanism 311 for driving the cargo box 8 to move left and right, and a third drive mechanism 312 for driving the cargo box 8 to move forward and backward. The second drive mechanism 311 and the third drive mechanism 312 have the same structure, both being lifting gear mechanisms. The lifting gear mechanism includes a lifting bracket 901, which is provided with a driving motor 902 and a driving gear 903. The driving gear 903 is driven to rotate by the driving motor 902. The rotation axes of the driving gear 903 of the second drive mechanism 311 and the third drive mechanism 312 are perpendicular to each other. Figure 13As shown, the bottom surface of the box 8 is provided with a left-right rack 801 and a front-rear rack 802, wherein the left-right rack 801 is used to engage with the drive gear 903 of the second driving mechanism 311, and the front-rear rack 802 is used to engage with the drive gear 903 of the third driving mechanism 312. When the box 8 does not need to be driven to move, the lifting support 901 is lowered to make the drive gear 903 lower than the top surface of the stacking platform body 301, and when the box 8 needs to be driven to move, the lifting support 901 is raised to make the drive gear 903 higher than the top surface of the stacking platform body 301.

[0039] Please refer to Figure 8 As shown, the lifting platform 4 includes a lifting platform body 401 and a fourth driving mechanism for driving the lifting platform body 401 to move up and down, which includes a lifting lead screw 402 in the vertical direction and a lifting guide rod 403. The lifting platform body 401 and the lifting lead screw 402 constitute a lead screw nut motion pair, and the lifting platform body 401 moves up and down under the guidance of the lifting guide rod 403. The lifting platform body 401 is provided with a fifth driving mechanism 404 for driving the box 8 to move forward and backward, and the fifth driving mechanism 404 is also a lifting gear mechanism, and its working mode will not be described again.

[0040] Please refer to Figure 9 and Figure 10 As shown, the box temporary storage channel 5 is a channel for longitudinally stacking and storing the box 8. The bottom of the box temporary storage channel 5 is provided with a lifting assembly 501, and a guide slide plate 502 is arranged on the front side of the lifting assembly 501 for the transition between the bottom conveying belt 7 and the lifting assembly 501. Two sets of turnover baffles 503 are arranged at the lower part and the upper part of the box temporary storage channel 5 respectively. The turnover baffles 503 at the lower part are located above the lifting assembly 501, and the turnover baffles 503 at the upper part are located above the drop door 102. The turnover baffles 503 are arranged to be able to turn up but not to turn down, i.e., the turnover baffles 503 are in a limit position of being turned down to be perpendicular to the side wall of the box temporary storage channel 5 in a general state. When the box 8 moves up in the box temporary storage channel 5, the turnover baffles 503 can be pushed to turn up so that the box 8 passes through. After the box 8 passes through the turnover baffles 503, the turnover baffles 503 turn down to the limit position due to gravity, and at this time, the turnover baffles 503 can block the falling of the box 8.

[0041] The rear side of the top of the box temporary storage channel 5 is provided with a swingable push plate 504, which is located above the turnover baffles 503 at the upper part. When the topmost box 8 is supported by the turnover baffles 503 at the upper part, the push plate 504 is swung to push the box 8 to the top conveying belt 6.

[0042] The working process of the above embodiment is as follows: when the goods need to be taken out, the first driving mechanism moves the stacking platform body 301 to the position of the goods storage box 8 in the goods cavity 201, and the stacking platform body 301 is driven by the translation mechanism to move to the goods cavity 201. During the movement, the shifting rack 310 is engaged with the shifting gear 206, the rotation of the stop lever rotating shaft 204 causes the lifting stop lever 205 to rise, and after part of the stacking platform body 301 moves to the position below the goods box 8, the driving gear 903 of the second driving mechanism 311 rises to engage with the left and right toothed bars 801 on the bottom surface of the goods box 8, and then the driving gear 903 rotates to move the goods box 8 from the goods cavity 201 to the stacking platform body 301. The driving gear 903 of the second driving mechanism 311 is lowered to reset. Then the stacking platform body 301 is driven by the translation mechanism to return to the middle of the frame 302, at this time the shifting gear 206 is shifted in the opposite direction, and the lifting stop lever 205 is lowered. The first driving mechanism drives the stacking platform body 301 to the position of the lifting platform 4. The driving gear 903 of the third driving mechanism 312 rises to engage with the front and rear toothed bars 802 on the bottom surface of the goods box 8, and then the driving gear 903 rotates to move the goods box 8 from the stacking platform body 301 to the lifting platform body 401. During the movement, the driving gear 903 of the fifth driving mechanism 404 on the lifting platform body 401 also rises to engage with the front and rear toothed bars 802 on the bottom surface of the goods box 8. After the goods box 8 is transferred to the lifting platform body 401, the driving gear 903 of the third driving mechanism 312 is lowered to reset. The person taking the goods can open the taking door 101 to take the goods from the goods box 8.

[0043] After the goods are taken out, the taking door 101 is closed, the lifting platform body 401 is lowered to the position of the bottom conveying belt 7 under the drive of the fourth driving mechanism, the driving gear 903 of the fifth driving mechanism 404 rises to engage with the front and rear toothed bars 802 on the bottom surface of the goods box 8, and then the driving gear 903 rotates to move the goods box 8 from the lifting platform body 401 to the bottom conveying belt 7. Then the fifth driving mechanism 404 is reset. The bottom conveying belt 7 conveys the empty goods box 8 to the bottom of the goods box temporary storage channel 5, and the goods box 8 moves to the lifting assembly 501 through the guide slide plate 502. The lifting assembly 501 lifts the goods box 8 into the goods box temporary storage channel 5, and the lower turnover baffle 503 blocks the falling of the goods box 8. A plurality of goods boxes 8 are stacked one above another in the goods box temporary storage channel 5.

[0044] When the deliveryman puts the delivery goods into the trolley, he opens the delivery door 102, puts the goods into the empty box 8, then the lifting assembly 501 rises to lift the box 8 with the goods, which is blocked by the upper turnover baffle 503, while the next empty box 8 is in the corresponding position of the delivery door 102, the deliveryman can continue to put the goods into the trolley. The topmost box 8 is moved to the top conveyor belt 6 by the push plate 504, the lifting platform body 401 is driven to the end of the top conveyor belt 6, the top conveyor belt 6 sends the box 8 to the lifting platform body 401, and then to the stacking platform body 301, the stacking platform body 301 sends the box 8 to the corresponding empty goods cavity 201, when the stacking platform body 301 with the box 8 moves to the goods cavity 201, the shifting rack 310 is also engaged with the shifting gear 206, and then the lifting baffle 205 rises, after the box 8 is sent into the goods cavity 201, the stacking platform body 301 is removed, and the lifting baffle 205 is lowered to block the side of the box 8 to prevent it from sliding out.

[0045] In some preferred embodiments, in order to facilitate the taking and placing of goods and increase the number of boxes 8 accommodated in the box temporary storage channel 5, please combine Figure 11 、 Figure 12As shown, the shelf 2 is designed as a compressible structure, specifically, the box 8 comprises a fixed bottom box 803 and a telescopic upper box 804, the telescopic upper box 804 comprises telescopic struts 805 located at four corners of the box 8 and flexible fences 806 arranged between the telescopic struts 805, the telescopic strut 805 comprises at least two telescopic sections 8051 sleeved with each other, the end portions of the telescopic sections 8051 are provided with pin holes and a telescopic pin 8052, the telescopic pin 8052 is provided with an inclined guide groove 8052a, the end portion of the telescopic section 8051 is provided with a guide pin 8051a arranged in the guide groove 8052a, when the telescopic section 8051 is pressed downward, the guide pin 8051a generates an oblique force on the telescopic pin 8052 through the guide groove 8052a to make the telescopic pin 8052 retract. When the telescopic section 8051 is lifted, the telescopic pin 8052 is driven to the pin hole position and is automatically extended and locked by the spring action on the back side. It should be pointed out that the above structure only describes a specific structure of the telescopic strut 805, and other prior art structures can also be used in the present application. In order to facilitate lifting of the telescopic strut 805, a cross rod 808 is connected to the top of two telescopic struts 805. A pressing mechanism 405 for pressing the telescopic strut 805 to shorten the telescopic strut 805 is arranged on the side of the lifting platform body 401 of the lifting platform 4, the pressing mechanism 405 can be realized by a screw nut movement mechanism, similarly, the top of the temporary storage channel 5 is also provided with a supporting plate 505 for pushing the telescopic strut 805 above the upper turnover baffle 503. The supporting plate 505 can be arranged as a horizontally rotatable structure, after the box 8 is supported by the upper turnover baffle 503, the supporting plate 505 is rotated to below the cross rod 808, then the telescopic upper box 804 of the box 8 is unfolded upward by upward movement of the supporting plate 505 (which can be driven by a screw nut movement mechanism).

Claims

1. A small vehicle for delivering articles, comprising a carriage, characterized in that: The carriage is provided with shelves, a mobile stacking platform, a lifting platform, a cargo box temporary storage channel, a top conveyor belt and a bottom conveyor belt, the shelves include a plurality of cargo cavities with side openings arranged vertically and horizontally, a movable cargo box is provided in the cargo cavity, the mobile stacking platform is arranged on the side of the shelves for receiving or delivering cargo boxes from the opening of the cargo cavity, the lifting platform and the cargo box temporary storage channel are respectively arranged on the front and rear sides of the mobile stacking platform, the top conveyor belt is located above the mobile stacking platform and is transported to the cargo box temporary storage channel by the lifting platform, the bottom conveyor belt is located below the mobile stacking platform and is transported to the cargo box temporary storage channel by the lifting platform, a pickup door is provided on the carriage at a position corresponding to the lifting platform, and a delivery door is provided on the carriage at a position corresponding to the top of the cargo box temporary storage channel; The mobile stacking platform includes a stacking platform body and a first driving mechanism that drives the stacking platform body to move vertically and horizontally; the stacking platform body is provided with a second driving mechanism that drives the cargo box to move left and right and a third driving mechanism that drives the cargo box to move forward and backward; the lifting platform includes a lifting platform body and a fourth driving mechanism that drives the lifting platform body to move up and down; the lifting platform body is provided with a fifth driving mechanism that drives the cargo box to move forward and backward; a push plate is provided on the top of the cargo box temporary storage channel, and the push plate is used to push the cargo box in the cargo box temporary storage channel to the top conveyor belt; The second drive mechanism, the third drive mechanism, and the fifth drive mechanism are lifting gear mechanisms, each of which includes a lifting bracket, a driving motor and a driving gear provided on the lifting bracket, the driving gear being driven to rotate by the driving motor, a left-right rack and a front-back rack provided at the bottom of the cargo box, the rotation axes of the gears of the second drive mechanism and the third drive mechanism being perpendicular to each other, the gear of the second drive mechanism being used to mesh with the left-right rack, and the gears of the third drive mechanism and the fifth drive mechanism being used to mesh with the front-back rack; The cargo cavity entrance side walls are provided with lifting levers, the cargo cavity entrance side walls are provided with lever shafts, the lifting levers and the lever shafts cooperate to form a cam groove lifting mechanism for lifting, the lever shafts are provided with a toggle gear, the mobile stacking platform is provided with a frame, the first driving mechanism drives the frame to move, the stacking platform body is arranged in the frame, the frame is provided with a translation mechanism to drive the stacking platform body to translate left and right, the side of the stacking platform body is provided with a toggle rack, when the stacking platform body translates left and right, the toggle rack engages with the toggle gear to drive the lever shaft to rotate.

2. The article delivery trolley according to claim 1, characterized in that: The shelves are arranged in pairs on the left and right sides of the mobile stacking platform.

3. The article delivery trolley according to claim 1, characterized in that: A lifting assembly is provided at the bottom of the cargo box temporary storage channel, and the lifting assembly is used to lift the cargo box upward. The side walls of the cargo box temporary storage channel are located above the lifting assembly and above the delivery door. A flip baffle is provided. The flip baffle rotates upward when the cargo box moves upward. When not pushed by the cargo box, the flip baffle flips down to the extreme position to prevent the cargo box from falling.

4. The article delivery trolley according to claim 1, characterized in that: The lifting stop bar is used to prevent the cargo box from sliding out of the cargo cavity laterally.

5. The article delivery trolley according to claim 1, characterized in that: Vertical sliding grooves are provided on both side walls of the entrance of the cargo cavity, the baffle rod rotating shaft is arranged in the sliding grooves, and the lifting baffle rod is guided by the sliding grooves.

6. The article delivery trolley according to claim 1, characterized in that: The cargo box includes a fixed bottom box and a telescopic upper box. The telescopic upper box includes telescopic pillars located at the four corners of the cargo box and flexible enclosures arranged between the telescopic pillars. The lifting platform includes a pressing mechanism for pressing down the telescopic pillars to shorten the telescopic pillars. The top of the cargo box temporary storage channel is provided with a support plate for pushing up the telescopic pillars.

7. The article delivery trolley according to claim 6, characterized in that: The telescopic support comprises at least two sets of telescopic joints, and the ends of the telescopic joints that cooperate with each other are provided with pin holes and telescopic pins. When the telescopic joints are pressed down, the telescopic pins are pushed to retract.

8. The article delivery trolley according to claim 6, characterized in that: The outer side wall of the fixed bottom box is provided with a guide ball, and the side wall of the cargo cavity is provided with a guide groove for cooperating with the guide ball.

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