Cargo compartment with loading and unloading functions

Abstract

The invention provides a cargo compartment with loading and unloading functions. The cargo compartment comprises a cargo compartment body and an unloading conveying mechanism arranged on the inner side of the bottom of the cargo compartment body. The cargo compartment further comprises a cargo feeding conveying mechanism and a plurality of stacking and positioning mechanisms capable of being taken out of the cargo compartment body, the stacking and positioning mechanisms are detachably connected with the cargo feeding conveying mechanism through locking assemblies, each locking assembly is provided with an input end, and the input ends are arranged at the heads of the stacking and positioning mechanisms. Unlocking parts used for being inserted into the input end to unlock the locking assembly are arranged on the tail portion of the stacking, placing and positioning mechanism and the inner side wall of the cargo compartment body. By the adoption of the stacking, placing and positioning mechanism, the locking mechanism and the unlocking part, after conveying is in place, locking connection between the stacking, placing and positioning mechanism and the loading conveying mechanism can be automatically relieved, active conveying is avoided, the stacking, placing and positioning mechanism conveyed in place is prevented from being continuously driven, and waste of driving force is avoided.

Description

Technical Field

[0001] The invention relates to a cargo compartment with cargo loading and unloading functions. Background Art

[0002] The cargo compartment of a truck is a vital part of the vehicle, primarily used to transport a variety of goods. It's suitable for a variety of applications, including factories, supermarkets, and individuals. The cargo compartment offers advantages such as flexibility, ease of operation, high efficiency, high transport capacity, efficient use of space, and safety and reliability.

[0003] Currently, the existing patent document "CN216734013U: A Van with Self-Loading and Unloading Function" describes a loading and unloading system installed in the cargo compartment. The loading and unloading system includes a bracket mounted on the bottom of the cargo compartment. The front and rear ends of the bracket are pivotally connected to a driving shaft, which is connected to a drive device. The drive device drives the driving shaft to rotate forward or reverse. The same conveyor belt is connected to both driving shafts. This utility model solves the problems of high labor intensity and low work efficiency of the existing technology.

[0004] Although the above-mentioned existing technology can realize the automatic transportation of goods and realize loading and unloading of goods, it has the following defects. During the loading process of goods, the goods are stacked at the exit position to form a single row, and then the single row of goods is transported to the inside so that the exit can continue to place goods, and then the goods are placed until the cargo compartment is full of goods. The transmission belt continues to transport, and after the innermost layer of goods is transported into place, the goods at other positions may not be transported and conductive. At this time, the transmission belt will still provide a driving force for the innermost layer of goods. This driving force cannot be applied, resulting in a waste of driving force. At the same time, the goods are blocked in place, and the transmission belt continues to move, which will generate friction and cause wear. Summary of the Invention

[0005] In order to solve the technical problem that when the inner layer of goods is delivered to the right place but the outer layer of goods is not delivered to the right place, the transmission belt continues to move, which will cause waste of driving force and friction wear, and provides a cargo compartment with loading and unloading functions.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] The present invention provides a cargo compartment with loading and unloading functions, comprising a cargo compartment body and a unloading conveying mechanism arranged at the inner side of the bottom of the cargo compartment body; further comprising: a loading conveying mechanism, wherein the number of the loading conveying mechanisms is two, and the two loading conveying mechanisms are symmetrically arranged on both sides of the unloading conveying mechanism; a stacking and positioning mechanism that can be removed from the cargo compartment body, the number of the stacking and positioning mechanisms is several, the stacking and positioning mechanism is detachably connected to the loading conveying mechanism through a locking assembly, the locking assembly is provided with an input end, and the input end is provided at the head of the stacking and positioning mechanism, the tail of the stacking and positioning mechanism and the inner side wall of the cargo compartment body are both provided with an unlocking portion for inserting the input end to unlock the locking assembly; a pressing portion that can movably adjust the pressing position, the stacking and positioning mechanism is provided with a pressing portion, and the pressing portion is used to press and position the goods inside the stacking and positioning mechanism.

[0008] The stacking mechanism is locked and the stacking mechanism is locked, so that the stacking mechanism can be locked and the stacking mechanism can be locked together.

[0009] Preferably, the loading and conveying mechanism includes an outer cover fixedly mounted on the inner wall of the bottom of the cargo compartment body and a servo motor; the servo motor is fixedly mounted on the outer wall of the outer cover, and a sprocket is rotatably mounted on both sides of the interior of the outer cover, a chain is wound around the two sprockets, the middle part of the sprocket is fixedly connected to the output shaft end of the servo motor, and the chain is provided with a plurality of push columns at equal intervals along the length direction, and the push columns are fixedly connected to the chain links of the chain, a fixed plate is provided at one side opening of the outer cover, and the fixed plate is fixed to the inner wall of the outer cover through an inner frame, a walking groove is formed between the edge of the fixed plate and the opening edge of the outer cover, the push column passes through the walking groove and extends to the outside of the outer cover, and the push column is slidably connected to the walking groove.

[0010] In this technical solution, the loading conveying mechanism and the stacking positioning mechanism are locked by plugging the push rod and the positioning sleeve in the loading conveying mechanism. When the loading conveying mechanism is conveying, the stacking positioning mechanism can be moved to realize transportation.

[0011] Preferably, the stacking placement and positioning mechanism includes a loading box; an inner partition is fixedly installed on the inner wall of the loading box, and the loading box is divided by the inner partition to form a cargo stacking groove and a protection groove; a driving assembly is provided inside the protection groove, and the pressing part is connected to the locking assembly through the driving assembly.

[0012] In this technical solution, the cargo stacking slot in the loading box is used for stacking cargo, wherein the pressing part is connected to the locking assembly. When the locking assembly is unlocked, the unlocking drive provides drive for the pressing part to achieve automatic downward pressing and tightening, thereby providing a positioning function.

[0013] Preferably, the input end of the locking assembly includes two symmetrically arranged movable blocks, which are slidably installed on one side of the loading box, and a V-shaped groove is formed between the two movable blocks, and the groove spacing of the V-shaped groove gradually decreases along the direction approaching the loading box.

[0014] In this technical solution, a V-shaped groove is formed, inserted into the unlocking portion, and two movable blocks are squeezed to expand the V-shaped groove, thereby driving the locking assembly and unlocking.

[0015] Preferably, the locking assembly also includes a connecting rod arranged in a protective groove and a movable sleeve fixed to one end of the connecting rod; the other end of the connecting rod is fixed to the movable block, and the connecting rod is slidably connected to the side sliding groove opened on the loading box, and a fixed guide plate is fixedly installed on the inner wall of the loading box, and a guide groove is provided on the fixed guide plate, the connecting rod passes through the guide groove, and the connecting rod is cooperatively connected with the guide groove, and a first spring is provided on the connecting rod and is located on one side of the fixed guide plate, one end of the first spring is fixed to the plate surface of the fixed guide plate, and the other end of the first spring is fixed to the connecting rod.

[0016] In this technical solution, the locking assembly is unlocked by moving the movable block, which drives the connecting rod and then drives the positioning sleeve to move. The positioning sleeve is received in the guide hole, so that the positioning sleeve is separated from the push column.

[0017] Preferably, the movable sleeve is connected to a guide hole provided on the wall of the loading box, and a notch is provided at the bottom of one end of the movable sleeve away from the connecting rod for pushing the rod into the bottom.

[0018] In this technical solution, through the design of the bottom notch, by placing the loading box into the cargo compartment body, through the loading box below, the pushing column can enter the movable sleeve through the bottom notch, thereby realizing the connection between the stacking placement positioning mechanism and the loading conveying mechanism, and the conveying is visible. After the conveying is in place, it is automatically unlocked.

[0019] Preferably, the unlocking portion at the tail of the stacking and positioning mechanism and the unlocking portion on the inner side wall of the cargo compartment body are respectively a first extrusion plug-in block and a second extrusion plug-in block, and the first extrusion plug-in block and the second extrusion plug-in block are both wedge-shaped blocks.

[0020] In this technical solution, the wedge-shaped block is designed to be inserted into the V-shaped groove to spread the two movable blocks and realize unlocking drive.

[0021] Preferably, the downward pressure part is composed of two slide rails and several positioning pressure rods. The two slide rails are respectively arranged on both sides of the loading box. The positioning pressure rod is arranged above the loading box, and the positioning pressure rod is n-shaped. Both ends of the positioning pressure rod are fixed with sliders, and the sliders are slidably connected to the slide rails.

[0022] In this technical solution, the slider slides in the slide rail to achieve the movement and adjustment of the positioning pressure rod. The positioning pressure rod can press down the goods and block the goods in front and behind at the same time, providing a better limiting effect.

[0023] The transmission gear of the present invention is a gear which is connected with the gear of the first gear to the upper end of the gear train and the gear is connected with the gear of the first gear to the upper end of the gear train.

[0024] In this technical solution, the driving component is linked to the locking component, and during the unlocking process of the locking component, the driving component is driven to realize the automatic downward driving of the downward pressing part.

[0025] Preferably, the connecting guide rod passes through a vertical guide groove provided on the side wall of the loading box, and the connecting guide rod is slidably connected to the vertical guide groove.

[0026] In this technical solution, vertical guidance is provided by connecting the guide rod and the vertical guide groove, thereby improving the guiding effect for the movement of the slide rail.

[0027] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0028] The positive progress effect of the present invention is:

[0029] The above-mentioned cargo compartment with loading and unloading functions is used for stacking goods through the stacking placement positioning mechanism, wherein the locking mechanism is used to lock the loading conveying mechanism and the stacking placement positioning mechanism, thereby ensuring the connection between the two during transportation. After the stacking placement positioning mechanism is transported to its place, the unlocking part is inserted into the input end of the locking component to achieve unlocking, so that the stacking placement positioning mechanism automatically loses its connection with the loading conveying mechanism, thereby avoiding the stacking placement positioning mechanism that has been transported to its place during the subsequent transportation process of the stacking placement positioning mechanism, thereby avoiding waste of driving force; a downward pressure part is further provided to provide a downward pressure for the goods stacked on the stacking placement positioning mechanism, provide a limit positioning for the goods, and ensure the stability of the transportation of the goods stacked on the stacking placement positioning mechanism; the downward pressure position of the downward pressure part is adjustable, and when stacking goods, the downward pressure position is adjusted by continuous movement to avoid obstruction of the goods placed in the stacking placement positioning mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic structural diagram of the present invention as a whole.

[0031] Figure 2 It is a schematic structural diagram of the interior of the cargo compartment body of the present invention.

[0032] Figure 3 It is a schematic structural diagram of the interior of the cargo compartment of the present invention when no stacking and positioning mechanism is placed therein.

[0033] Figure 4 For the present invention Figure 3 Schematic diagram of the structure with the A part in the middle enlarged.

[0034] Figure 5 Schematic diagram of the structure inside the outer cover of the present invention.

[0035] Figure 6 It is a structural schematic diagram of the bottom of the stacking and positioning mechanism of the present invention.

[0036] Figure 7 It is a structural schematic diagram of the outer side of the stacking and positioning mechanism of the present invention.

[0037] Figure 8 It is a schematic diagram of the installation structure of the movable sleeve of the present invention.

[0038] Figure 9 Schematic diagram of the internal top view of the material loading box of the present invention.

[0039] Figure 10 For the present invention Figure 9 Schematic diagram of the structure with the B part enlarged.

[0040] Figure 11 For the present invention Figure 9 Schematic diagram of the structure with the C part enlarged.

[0041] Figure 12 Schematic diagram of the structure of the drive assembly of the present invention.

[0042] Figure 13 It is a structural schematic diagram of the connecting strip, connecting guide rod and slide rail of the present invention.

[0043] Description of Reference Numerals

[0044] 1. Cargo compartment body;

[0045] 2. Loading conveyor mechanism; 201. Outer cover; 202. Servo motor; 203. Fixed plate; 204. Traveling slot; 205. Push column; 206. Inner frame; 207. Chain; 208. Sprocket;

[0046] 3. Stacking and positioning mechanism; 301. Loading box; 302. Slide rail; 303. Positioning pressure rod; 304. First extrusion insert; 305. Movable block; 306. Movable sleeve; 3061. Bottom notch; 307. Vertical guide groove; 308. Side slide groove; 309. Guide hole; 310. Connecting rod; 311. Fixed guide plate; 312. First spring; 313. Inner partition;

[0047] 4. Unloading conveying mechanism;

[0048] 5. Second extrusion plug;

[0049] 6. Driving assembly; 601. First cylindrical gear; 602. First rack; 603. First bevel gear; 604. Second bevel gear; 605. Fixed frame; 606. First rotating shaft; 607. Second cylindrical gear; 608. Second rotating shaft; 609. Second rack; 610. Connecting bar; 611. Second spring; 612. Connecting guide rod. DETAILED DESCRIPTION

[0050] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0051] like Figure 1-13As shown, the cargo compartment with the function of loading and unloading goods includes a cargo compartment body 1 and a unloading conveying mechanism 4 arranged at the inner side of the bottom of the cargo compartment body 1; it also includes: a loading conveying mechanism 2, the number of the loading conveying mechanisms 2 is two, and the two loading conveying mechanisms 2 are symmetrically arranged on both sides of the unloading conveying mechanism 4; a stacking placement positioning mechanism 3 that can be taken out from the cargo compartment body 1, the number of the stacking placement positioning mechanisms 3 is several, the stacking placement positioning mechanism 3 is detachably connected to the loading conveying mechanism 2 through a locking assembly, the locking assembly is provided with an input end, and the input end is provided at the head of the stacking placement positioning mechanism 3, the tail of the stacking placement positioning mechanism 3 and the inner side wall of the cargo compartment body 1 are provided with an unlocking part for inserting the input end to unlock the locking assembly; a pressing part that can movably adjust the pressing position, the stacking placement positioning mechanism 3 is provided with a pressing part, and the pressing part is used to press and position the goods inside the stacking placement positioning mechanism 3.

[0052] When the goods are stacked, the lifting device 2 and the lifting device 3 are locked.

[0053] like Figure 3-5As shown in the figure, as a specific technical solution, the loading conveying mechanism 2 includes an outer cover 201 fixedly mounted on the inner wall of the bottom of the cargo compartment body 1 and a servo motor 202; the servo motor 202 is fixedly mounted on the outer wall of the outer cover 201, and a sprocket 208 is rotatably mounted on both sides of the inner side of the outer cover 201. A chain 207 is wound between the two sprockets 208. The middle part of the sprocket 208 is fixedly connected to the output shaft end of the servo motor 202. The chain 207 is evenly spaced along the length direction. A plurality of push columns 205 are provided, and the push columns 205 are fixedly connected to the links of the chain 207. A fixing plate 203 is provided at one side opening of the outer cover 201, and the fixing plate 203 is fixedly connected to the inner wall of the outer cover 201 through the inner frame 206. A walking groove 204 is formed between the edge of the fixing plate 203 and the opening edge of the outer cover 201. The push columns 205 pass through the walking groove 204 and extend to the outside of the outer cover 201. The push columns 205 are slidably connected to the walking groove 204.

[0054] The sprocket 208 is driven to rotate by the servo motor 202 and the chain 207 is used for chain transmission, thereby realizing the conveying movement of the chain 207. When the chain 207 moves, the pushing column 205 thereon moves along with it, and the pushing column 205 provides a driving force.

[0055] like Figure 8-9 As shown, as a specific technical solution, the stacking placement and positioning mechanism 3 includes a loading box 301; an inner partition 313 is fixedly installed on the inner wall of the loading box 301, and the loading box 301 is divided by the inner partition 313 to form a cargo stacking groove and a protection groove; a driving component 6 is provided inside the protection groove, and the downward pressure part is connected to the locking component through the driving component 6.

[0056] The cargo stacking slot in the loading box 301 is used for stacking the cargo; after the cargo is stacked, the cargo is transported by the stacking placement positioning mechanism 3. After the cargo is transported into place, the locking component is automatically unlocked, and the unlocking drive provides drive for the driving component 6, which is then used to drive the pressing part, thereby realizing the downward drive of the pressing part and realizing the automatic downward pressing positioning of the cargo.

[0057] like Figure 9 As shown, as a specific technical solution, the input end of the locking assembly includes two symmetrically arranged movable blocks 305, and the two movable blocks 305 are slidably installed to one side of the loading box 301, and a V-shaped groove is formed between the two movable blocks 305, and the groove spacing of the V-shaped groove gradually decreases along the direction approaching the loading box 301; further, the unlocking part at the tail of the stacking and positioning mechanism 3 and the unlocking part on the inner wall of the cargo compartment body 1 are respectively the first extrusion plug 304 and the second extrusion plug 5, and the first extrusion plug 304 and the second extrusion plug 5 are both wedge-shaped blocks.

[0058] By forming a V-shaped groove for inserting the unlocking portion of the wedge block, the two movable blocks 305 can be spread apart to provide a driving force for unlocking.

[0059] like Figure 8-9 As shown, in a specific implementation, the locking assembly further includes a connecting rod 310 arranged in a protective groove and a movable sleeve 306 fixed to one end of the connecting rod 310; the other end of the connecting rod 310 is fixed to the movable block 305, and the connecting rod 310 is slidably connected to the side sliding groove 308 opened on the loading box 301, and a fixed guide plate 311 is fixedly installed on the inner side wall of the loading box 301, and a guide groove is provided on the fixed guide plate 311, and the connecting rod 310 passes through the guide groove, and the connecting rod 310 is connected with the guide groove, and the connecting rod 310 is provided with a first spring 312 located on one side of the fixed guide plate 311, one end of the first spring 312 is fixed to the plate surface of the fixed guide plate 311, and the other end of the first spring 312 is fixed to the connecting rod 310; the movable sleeve 306 is connected with the guide hole 309 opened on the wall of the loading box 301, and the bottom of the end of the movable sleeve 306 away from the connecting rod 310 is provided with a notch 3061 for pushing the rod into the bottom.

[0060] Among them, the design of the bottom notch 3061 makes it convenient to manually push the loading box 301, so that the bottom notch 3061 is aligned with the pushing rod, and the pushing rod enters through the lower loading box 301 through the bottom notch 3061 to realize the connection between the movable sleeve 306 of the locking assembly and the pushing rod.

[0061] By driving the push rod to move, the movable sleeve 306 is pushed, thereby pushing the stacking placement positioning mechanism 3. When the first stacking placement positioning mechanism 3 is pushed to move into place, the second extrusion block is inserted between the two movable blocks 305 of the first stacking placement positioning mechanism 3, so that the two movable blocks 305 move away from each other, and the movable block 305 drives the connecting rod 310 to move, and the connecting rod 310 drives the movable sleeve 306 to move, separates from the push rod, and the movable sleeve 306 enters the guide hole 309, and the lock is automatically released. At the same time, in the above process, the first spring 312 will be stretched to generate a reset elastic force. This elastic force will cause the stacking placement positioning mechanism 3 to move from the cargo After the compartment body 1 is taken out, a reset force is provided for the movable sleeve 306; after the first stacking placement positioning mechanism 3 moves to the innermost end of the cargo compartment body 1, it moves into position and releases the connection with the pushing column 205. When the second stacking placement positioning mechanism is subsequently transported, the stacking placement positioning mechanism will not be driven. The second stacking placement positioning mechanism is driven to the position close to the first stacking placement positioning mechanism 3, and the locking component of the second stacking placement positioning mechanism 3 is squeezed and unlocked by the first squeezing block of the first stacking placement positioning mechanism 3. Then the subsequent stacking placement positioning mechanism 3 is transported, and can be subsequently unlocked by the stacking placement positioning mechanism 3 in front.

[0062] It should be noted that when unloading goods, all stacking and positioning mechanisms 3 are transported outward by the unloading conveying mechanism 4, wherein the unloading conveying mechanism 4 adopts a belt conveying mechanism, which can continuously move all stacking and positioning mechanisms 3 to the exit position of the cargo compartment body 1, and a single stacking and positioning mechanism 3 is close to the exit to remove the goods and the single stacking and positioning mechanism 3. After removal, the subsequent stacking and positioning mechanisms 3 continue to be transported to the exit.

[0063] like Figure 7 As shown, as a specific technical solution, the lower pressure part is composed of two slide rails 302 and a plurality of positioning pressure rods 303. The two slide rails 302 are respectively arranged on both sides of the loading box 301, and the positioning pressure rod 303 is arranged above the loading box 301, and the positioning pressure rod 303 is n-shaped. Both ends of the positioning pressure rod 303 are fixed with sliders, and the sliders are slidably connected to the slide rails 302.

[0064] The positioning rod 303 can slide in the slide rail 302 through the slider, and the position can be adjusted. When loading the goods and stacking them in the loading box 301, the positioning rod 303 can be moved to avoid obstruction that affects the placement of the goods.

[0065] like Figure 10-13As shown, as a specific technical solution, the driving assembly 6 includes a first rack 602 fixed to one end of the movable sleeve 306 and a first cylindrical gear 601 meshing with the first rack 602, a first rotating shaft 606 is fixed at the lower axis of the first cylindrical gear 601, a fixing frame 605 is rotatably installed on the first rotating shaft 606, and the fixing frame 605 is fixedly installed to the inside of the protective groove, and a second rotating shaft 608 is rotatably installed inside the protective groove, and a second bevel gear 604 and a first bevel gear 603 are fixedly installed on one end of the second rotating shaft 608 and the cylindrical surface of the first rotating shaft 606, respectively, and the second bevel gear 604 is meshed with the first bevel gear 603. The second rotating shaft 608 is also fixedly sleeved with a second cylindrical gear 607, and the second cylindrical gear 607 is meshedly connected with a vertical second rack 609. The bottom of the second rack 609 is fixedly connected with a connecting bar 610, and the end of the connecting bar 610 is fixedly connected with a connecting guide rod 612, and the connecting guide rod 612 is fixedly connected to the slide rail 302; a second spring 611 is provided at the bottom of the connecting bar 610, and the connecting bar 610 is elastically connected to the bottom inner wall of the loading box 301 through the second spring 611; the connecting guide rod 612 passes through the vertical guide groove 307 opened on the side wall of the loading box 301, and the connecting guide rod 612 is slidably connected to the vertical guide groove 307.

[0066] When the unlocking component is unlocking and the positioning sleeve moves toward the inside of the protective groove, the first rotating shaft 606 can be driven to rotate through the meshing transmission of the first rack 602 and the first cylindrical gear 601, and the second rotating shaft 608 can be driven to rotate through the meshing transmission of the first bevel gear 603 and the second bevel gear 604, and the connecting bar 610 and the connecting guide rod 612 can be driven to move downward together through the meshing transmission of the second cylindrical gear 607 and the second rack 609, thereby driving the slide rail 302 to move downward, and the slide rail 302 drives the positioning pressure rod 303 downward through the slider to compact the goods and perform compaction positioning; the cross-section of the slider adopts a cross-shaped structure, so that the slider and the slide rail 302 will not be separated in the vertical direction.

[0067] The present invention is not limited to the above-described embodiments. Any changes in shape or structure fall within the scope of protection of the present invention. The scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention. Such changes and modifications shall fall within the scope of protection of the present invention.

Claims

1. A cargo compartment with a loading and unloading function, comprising a cargo compartment body (1) and a cargo unloading conveying mechanism (4) arranged at the inner side of the bottom of the cargo compartment body (1); characterized in that: Also includes: A loading conveying mechanism (2), wherein the number of the loading conveying mechanisms (2) is two, and the two loading conveying mechanisms (2) are symmetrically arranged on both sides of the unloading conveying mechanism (4); A stacking and positioning mechanism (3) can be removed from the cargo compartment body (1), the stacking and positioning mechanism (3) being provided in a plurality of pieces, the stacking and positioning mechanism (3) being detachably connected to the loading and conveying mechanism (2) via a locking assembly, the locking assembly being provided with an input end, the input end being provided at the head of the stacking and positioning mechanism (3), and an unlocking portion for inserting the input end to unlock the locking assembly being provided on the tail of the stacking and positioning mechanism (3) and the inner side wall of the cargo compartment body (1); A pressing part with a movable downward-pressing position can be provided on the stacking and positioning mechanism (3), and the pressing part is used to press and position the goods inside the stacking and positioning mechanism (3).

2. The cargo compartment with loading and unloading functions according to claim 1, characterized in that: The loading conveying mechanism (2) comprises an outer cover (201) fixedly mounted on the inner wall of the bottom of the cargo compartment body (1) and a servo motor (202); the servo motor (202) is fixedly mounted on the outer wall of the outer cover (201); a sprocket (208) is rotatably mounted on both sides of the inner portion of the outer cover (201); a chain (207) is wound around the two sprockets (208); the middle portion of the sprocket (208) is fixedly connected to the output shaft end of the servo motor (202); and the chain (207) is provided with a plurality of push posts at equal intervals along the length direction. (205), and the pushing column (205) is fixedly connected to the chain link of the chain (207), a fixing plate (203) is provided at one side opening of the outer cover (201), and the fixing plate (203) is fixedly connected to the inner wall of the outer cover (201) through the inner frame (206), a walking groove (204) is formed between the edge of the fixing plate (203) and the opening edge of the outer cover (201), the pushing column (205) passes through the walking groove (204), extends to the outside of the outer cover (201), and the pushing column (205) is slidably connected to the walking groove (204).

3. The cargo compartment with loading and unloading functions according to claim 2, characterized in that: The stacking placement and positioning mechanism (3) comprises a loading box (301); an inner partition (313) is fixedly mounted on the inner wall of the loading box (301); the loading box (301) is divided by the inner partition (313) to form a cargo stacking slot and a protection slot; a driving assembly (6) is provided inside the protection slot, and the pressing portion is connected to the locking assembly via the driving assembly (6).

4. The cargo compartment with loading and unloading functions according to claim 3, characterized in that: The input end of the locking assembly includes two symmetrically arranged movable blocks (305), the two movable blocks (305) are slidably mounted to one side of the material loading box (301), and a V-shaped groove is formed between the two movable blocks (305), and the groove spacing of the V-shaped groove gradually decreases along the direction approaching the material loading box (301).

5. The cargo compartment with loading and unloading functions according to claim 4, characterized in that: The locking assembly further includes a connecting rod (310) arranged in the protective groove and a movable sleeve (306) fixedly connected to one end of the connecting rod (310); the other end of the connecting rod (310) is fixedly connected to the movable block (305), and the connecting rod (310) is slidably connected to the side sliding groove (308) provided on the loading box (301); a fixed guide plate (311) is fixedly installed on the inner side wall of the loading box (301), a guide groove is provided on the fixed guide plate (311), the connecting rod (310) passes through the guide groove, and the connecting rod (310) is cooperatively connected to the guide groove, and a first spring (312) is provided on the connecting rod (310) and is located on one side of the fixed guide plate (311), one end of the first spring (312) is fixedly connected to the plate surface of the fixed guide plate (311), and the other end of the first spring (312) is fixedly connected to the connecting rod (310).

6. The cargo compartment with loading and unloading functions according to claim 5, characterized in that: The movable sleeve (306) is connected to the guide hole (309) provided on the wall of the material loading box (301), and a notch (3061) is provided at the bottom of one end of the movable sleeve (306) away from the connecting rod (310) for pushing the rod into the bottom.

7. The cargo compartment with loading and unloading functions according to claim 1, characterized in that: The unlocking portion at the tail of the stacking placement positioning mechanism (3) and the unlocking portion on the inner side wall of the cargo compartment body (1) are respectively a first extrusion plug (304) and a second extrusion plug (5), and both the first extrusion plug (304) and the second extrusion plug (5) are wedge-shaped blocks.

8. The cargo compartment with loading and unloading functions according to claim 5, characterized in that: The lower pressing part is composed of two slide rails (302) and a plurality of positioning pressure rods (303). The two slide rails (302) are respectively arranged on both sides of the loading box (301). The positioning pressure rod (303) is arranged above the loading box (301), and the positioning pressure rod (303) is n-shaped. Both ends of the positioning pressure rod (303) are fixed with sliders, and the sliders are slidably connected to the slide rails (302).

9. The cargo compartment with loading and unloading functions according to claim 8, characterized in that: The driving assembly (6) includes a first rack (602) fixedly connected to one end of the movable sleeve (306) and a first cylindrical gear (601) meshed with the first rack (602), a first rotating shaft (606) fixedly connected to the lower axis of the first cylindrical gear (601), a fixed frame (605) rotatably mounted on the first rotating shaft (606), and the fixed frame (605) is fixedly mounted to the inside of the protective groove, and a second rotating shaft (608) is rotatably mounted inside the protective groove, and a second bevel gear (604) and a first bevel gear (603) are fixedly mounted on one end of the second rotating shaft (608) and the cylindrical surface of the first rotating shaft (606), respectively, and the second rotating shaft (608) is fixedly mounted on the cylindrical surface of the first rotating shaft (606). The bevel gear (604) is meshedly connected with the first bevel gear (603), and the second rotating shaft (608) is also fixedly sleeved with a second cylindrical gear (607), and the second cylindrical gear (607) is meshedly connected with a vertical second rack (609), and the bottom of the second rack (609) is fixedly connected with a connecting bar (610), and the end of the connecting bar (610) is fixedly connected with a connecting guide rod (612), and the connecting guide rod (612) is fixedly connected to the slide rail (302); a second spring (611) is provided at the bottom of the connecting bar (610), and the connecting bar (610) is elastically connected to the bottom inner wall of the loading box (301) through the second spring (611).

10. The cargo compartment with loading and unloading functions according to claim 9, characterized in that: The connecting guide rod (612) passes through a vertical guide groove (307) provided on a side wall of the material loading box (301), and the connecting guide rod (612) is slidably connected to the vertical guide groove (307).

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