Goods loading and unloading turnover device for express delivery vehicle

Abstract

The invention relates to the technical field of goods loading and unloading of express delivery vehicles, and discloses an express delivery vehicle goods loading and unloading turnover device which comprises a mounting bracket, a cage box main body, a motor fixedly mounted on the mounting bracket, a pair of bearing seats fixedly mounted on the mounting bracket, and a pair of lifting devices fixedly mounted on the motor and used for lifting the cage box main body, a bearing seat is arranged on the base, a lead screw is rotationally installed in the bearing seat, an output shaft of the motor is fixedly connected with the lead screw through a coupler, a nut is arranged on the lead screw, a connecting support is arranged on the nut, and a transverse shaft is fixedly installed on the connecting support. The transmission mechanism is composed of the lead screw, the lead screw nut and the connecting rod, and the bearing capacity is high. The overturning and translation of the express delivery cage trolley can be easily completed, the problem that time and labor are wasted when an existing unmanned express delivery vehicle loads goods and unloads the cage trolley is solved, and the goods loading and unloading efficiency of the express delivery vehicle can be greatly improved.

Description

Technical Field

[0001] This invention relates to the field of cargo loading and unloading technology for express delivery vehicles, and in particular to a cargo loading and unloading tilting device for express delivery vehicles. Background Technology

[0002] With the continuous development of online shopping and the logistics industry, express stations receive and send many packages every day. When loading or unloading packages, each package needs to be handled individually, and the waybill needs to be scanned to update the logistics information.

[0003] Existing cargo loading and unloading tilting devices for express delivery vehicles are usually complex in structure and have limited load-bearing capacity. They require complicated steps to tilt and move the express delivery vehicle, which is time-consuming and labor-intensive, and greatly reduces the efficiency of loading and unloading cargo. Summary of the Invention

[0004] The purpose of this invention is to address the problem that existing cargo loading and unloading tilting devices for express delivery vehicles are typically complex in structure and have limited load-bearing capacity, requiring numerous steps to tilt and move the express delivery vehicle, which is time-consuming and labor-intensive, greatly reducing the efficiency of loading and unloading cargo in express delivery vehicles. Therefore, this invention proposes a cargo loading and unloading tilting device for express delivery vehicles.

[0005] To achieve the above objectives, the present invention employs the following technology: a cargo loading and unloading tilting device for express delivery vehicles, comprising a mounting bracket and a cage body, wherein a cage vehicle is disposed inside the cage, and further comprising:

[0006] A motor is fixedly mounted on the mounting bracket. A pair of bearing seats are fixedly mounted on the mounting bracket. A lead screw is rotatably mounted inside the bearing seats. The output shaft of the motor is fixedly connected to the lead screw via a coupling. A nut is provided on the lead screw. A connecting bracket is provided on the nut. A horizontal shaft is fixedly mounted on the connecting bracket. A pair of connecting plates are fixedly mounted on the horizontal shaft. A third guide wheel is rotatably mounted on the connecting plates. A pair of straight guide rails are fixedly mounted on the mounting bracket. The third guide wheel is located inside the straight guide rails.

[0007] A pair of connecting rods are rotatably mounted on the horizontal axis via bearings. A first guide wheel is rotatably mounted on the connecting rod via bearings. A cage support is provided on the cage body. The first guide wheel is fixedly connected to the cage support. A pair of arc-shaped guide rails are fixedly mounted on the mounting bracket. A second guide wheel is provided inside the arc-shaped guide rails. The second guide wheel is fixedly connected to the cage support.

[0008] Further description of a cargo loading and unloading tilting device for express delivery vehicles as described above:

[0009] A crossbar is fixedly installed on the connecting rod.

[0010] Further description of a cargo loading and unloading tilting device for express delivery vehicles as described above:

[0011] The straight guide rail is equipped with a protective device to prevent the cage body from moving rapidly when the lead screw and nut slip.

[0012] Further description of a cargo loading and unloading tilting device for express delivery vehicles as described above:

[0013] The protective device includes a sleeve fixedly installed on a straight guide rail. A sliding rod is slidably installed inside the sleeve. The sliding rod is fixedly connected to a connecting plate. A sealing block is fixedly installed on the sliding rod. An air hole is opened on the sealing block. A spring is fixedly installed on the sealing block. An installation plate is fixedly installed on the other end of the spring. A pair of connecting plates located in the air hole are fixedly installed on the installation plate. A sealing block is fixedly installed on the end of the connecting plate away from the installation plate.

[0014] Further description of a cargo loading and unloading tilting device for express delivery vehicles as described above:

[0015] The sleeve is equipped with a warning device, which includes a mounting base fixedly installed on the sleeve, a pressure switch on the mounting base, and a warning light fixedly installed on the pressure switch.

[0016] Further description of a cargo loading and unloading tilting device for express delivery vehicles as described above:

[0017] The mounting base is connected to the inside of the sleeve.

[0018] Further description of a cargo loading and unloading tilting device for express delivery vehicles as described above:

[0019] The connecting plate is provided with a lubrication device, which includes an oil storage box fixedly installed on the connecting plate, an air pipe fixedly installed on the oil storage box, an air block fixedly installed on the air pipe, the air block cooperating with the mounting base, and an oil outlet pipe fixedly installed on the oil storage box.

[0020] Further description of a cargo loading and unloading tilting device for express delivery vehicles as described above:

[0021] The air block is hollow and elastic.

[0022] Further description of a cargo loading and unloading tilting device for express delivery vehicles as described above:

[0023] The end of the oil outlet pipe away from the oil storage box faces the connection between the horizontal axis and the connecting rod.

[0024] Further description of a cargo loading and unloading tilting device for express delivery vehicles as described above:

[0025] A diffusion device is provided inside the oil outlet pipe. The diffusion device includes a positioning rod fixedly installed inside the oil outlet pipe, an elastic rope fixedly installed on the positioning rod, a diffusion block fixedly installed on the elastic rope, and a plurality of fine holes opened on the diffusion block.

[0026] In summary, due to the adoption of the above-mentioned technology in the cargo loading and unloading tilting device for express delivery vehicles, the beneficial effects of this invention are:

[0027] This invention features a simple and reliable structure, requiring only one motor for power. Its transmission mechanism consists of a lead screw, lead screw nut, and connecting rod, providing strong load-bearing capacity. It can easily complete the tilting and lateral movement of the express delivery cage, solving the problem of time-consuming and labor-intensive loading and unloading of goods in existing unmanned express delivery vehicles, and greatly improving the efficiency of loading and unloading goods in express delivery vehicles. Attached Figure Description

[0028] Figure 1 A schematic diagram of the overall structure of the present invention is shown;

[0029] Figure 2 A side view of the cage body in this invention is shown;

[0030] Figure 3 A schematic diagram of the connecting plate in this invention is shown;

[0031] Figure 4 A schematic diagram of the sleeve structure in this invention is shown;

[0032] Figure 5 A schematic diagram of the sealing block in this invention is shown;

[0033] Figure 6 A schematic diagram of the early warning component in this invention is shown;

[0034] Figure 7 A schematic diagram of the lubrication device in this invention is shown;

[0035] Figure 8 A schematic diagram of the diffusion device in this invention is shown.

[0036] Legend:

[0037] 1. Cage support frame; 2. First guide wheel; 3. Arc-shaped guide rail; 4. Second guide wheel; 5. Connecting plate; 6. Lead screw; 7. Bearing seat; 8. Third guide wheel; 9. Motor; 10. Straight guide rail; 11. Mounting bracket; 12. Horizontal shaft; 13. Nut; 14. Connecting bracket; 15. Connecting rod; 16. Crossbar; 17. Cage body; 18. Protective device; 181. Sleeve; 182. Sliding rod; 183. Sealing block; 18 4. Air vent; 185. Spring; 186. Mounting plate; 187. Connecting plate; 188. Sealing block; 19. Warning device; 191. Mounting base; 192. Pressure switch; 193. Warning light; 20. Lubrication device; 201. Oil reservoir; 202. Oil outlet pipe; 203. Air pipe; 204. Air block; 21. Diffusion device; 211. Positioning rod; 212. Elastic rope; 213. Diffusion block; 214. Fine hole. Detailed Implementation

[0038] The following will describe, with reference to the accompanying drawings of the embodiments of the present invention, a cargo loading and unloading tilting device for express delivery vehicles according to the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figure 1 - Figure 8 As shown, the present invention employs the following technology: a cargo loading and unloading tilting device for express delivery vehicles, comprising a mounting bracket 11 and a cage body 17, wherein a cage cart is disposed inside the cage, and further comprising:

[0040] A motor 9 is fixedly mounted on the mounting bracket 11. A pair of bearing seats 7 are fixedly mounted on the mounting bracket 11. A lead screw 6 is rotatably mounted inside the bearing seats 7. The output shaft of the motor 9 is fixedly connected to the lead screw 6 through a coupling. A nut 13 is provided on the lead screw 6. A connecting bracket 14 is provided on the nut 13. A horizontal shaft 12 is fixedly mounted on the connecting bracket 14. A pair of connecting plates 5 are fixedly mounted on the horizontal shaft 12. A third guide wheel 8 is rotatably mounted on the connecting plate 5. A pair of straight guide rails 10 are fixedly mounted on the mounting bracket 11. The third guide wheel 8 is located inside the straight guide rails 10.

[0041] A pair of connecting rods 15 are rotatably mounted on the horizontal shaft 12 via bearings. A first guide wheel 2 is rotatably mounted on the connecting rod 15 via bearings. A crossbar 16 is fixedly mounted on the connecting rod 15. A cage support 1 is provided on the cage body 17. The first guide wheel 2 is fixedly connected to the cage support 1. A pair of arc-shaped guide rails 3 are fixedly mounted on the mounting bracket 11. A second guide wheel 4 is provided inside the arc-shaped guide rails 3. The second guide wheel 4 is fixedly connected to the cage support 1.

[0042] The forward rotation of motor 9 drives the lead screw 6 to rotate forward via the coupling. The forward rotation of lead screw 6 causes nut 13, connecting bracket 14, and horizontal shaft 12 to move. The third guide wheel 8 also moves synchronously within the straight guide rail 10 (the third guide wheel 8 can provide support within the straight guide rail 10). When the connecting rod 15 on the horizontal shaft 12 moves, it drives the other end of the connecting rod 15 to make an arc motion with the first guide wheel 2 installed on the cage bracket 1 on the cage body 17. This motion will cause the cage car to rotate around the axis of the second guide wheel 4 installed on the cage bracket 1 at the lower point of the cage body 17. At this time, the cage body 17 begins to tilt. When the cage bracket at the higher point of the cage... The guide wheel on 1 makes an arc motion until it reaches the guide rail, and the rotation ends. At this time, since the motor 9 is still working, the nut 13, connecting bracket 14, connecting plate 5 and the third guide wheel 8 in the straight guide rail 10 will continue to move, driving the third guide wheel 8 at the high point of the cage to move in the straight guide rail 10. The second guide wheel 4 at the low point of the cage body 17 moves along the arc guide rail 3. When it moves to the horizontal straight section, the cage body 17 is in a horizontal state. At this time, the cage body 17 is flipped from a vertical state to a horizontal state. The motor 9 continues to rotate forward, and the cage body 17 moves in a horizontal state. After moving a certain distance, the motor 9 stops rotating, and the work ends.

[0043] Motor 9 reverses, driving the lead screw 6 mounted on bearing seat 7 to reverse via coupling. The reverse rotation of lead screw 6 causes nut 13 to move in the opposite direction. Simultaneously, connecting bracket 14 and horizontal shaft 12 mounted on nut 13 move together. The third guide wheel 8 in the straight guide rail 10 also moves within the straight guide rail 10. Connecting rod 15 mounted on horizontal shaft 12 drives the first guide wheel 2, whose other end is mounted on cage bracket 1 on cage body 17, to move linearly within the straight guide rail 10. When the second guide wheel 4 at the lowest point of cage body 17 moves within the arc-shaped guide rail 3 to the straight section and... At the connection point of the arc segment, the cage body 17 completes translation, the third guide wheel 8 in the straight guide rail 10 continues to move, and the second guide wheel 4 in the arc guide rail 3 continues to move along the inclined section of the arc guide rail 3 to the bottom of the guide rail. At this time, the cage body 17 tilts, the motor 9 is still working, and the first guide wheel 2 at the high point of the cage rotates upward away from the straight guide rail 10 with the axis of the guide wheel at the low point of the cage body 17 as the axis of rotation until the cage body 17 becomes vertical and the work stops. At this time, the cage body 17 is flipped from horizontal to vertical and the work ends.

[0044] A protective device 18 is provided on the straight guide rail 10 to prevent the cage body 17 from moving rapidly when the lead screw 6 and nut 13 slip. The protective device 18 includes a sleeve 181 fixedly installed on the straight guide rail 10. A sliding rod 182 is slidably installed inside the sleeve 181. The sliding rod 182 is fixedly connected to the connecting plate 5. A sealing block 183 is fixedly installed on the sliding rod 182. An air hole 184 is opened on the sealing block 183. A spring 185 is fixedly installed on the sealing block 183. An installation plate 186 is fixedly installed on the other end of the spring 185. A pair of connecting plates 187 located in the air hole 184 are fixedly installed on the installation plate 186. A sealing block 188 is fixedly installed on the end of the connecting plate 187 away from the installation plate 186.

[0045] When the cage body 17 is tilted, slippage between the nut 13 and the lead screw 6 can cause the cage body 17 to move rapidly. In this case, the connecting plate 5 drives the sliding rod 182 to move within the sleeve 181. When the sliding rod 182 moves rapidly, the air pressure between the sealing block 183 and the sleeve 181 increases, causing the sealing block 188, the connecting plate 5, and the mounting plate 186 to move. When the mounting plate 186 moves, it stretches the spring 185. When the sealing block 188 moves into the air hole 184, it blocks the air hole 184. At this time, the air in the sleeve 181 and the sealing block 188 cannot be discharged and is compressed, thereby slowing down the movement speed of the connecting plate 5 and thus slowing down the movement speed of the cage body 17, reducing safety hazards.

[0046] The sleeve 181 is provided with a warning device 19. The warning device 19 includes a mounting base 191 fixedly installed on the sleeve 181. The mounting base 191 is connected to the inside of the sleeve 181. A pressure switch 192 is provided on the mounting base 191. A warning light 193 is fixedly installed on the pressure switch 192.

[0047] When the air inside the sleeve 181 is compressed, the air enters the mounting base 191. The air pressure causes the pressure switch 192 to open and the warning light 193 to light up, reminding the staff to take shelter and avoid personal injury. At the same time, it serves to remind the staff and facilitate timely inspection and maintenance.

[0048] A lubrication device 20 is provided on the connecting plate 5. The lubrication device 20 includes an oil storage box 201 fixedly installed on the connecting plate 5. An air pipe 203 is fixedly installed on the oil storage box 201. An air block 204 is fixedly installed on the air pipe 203. The air block 204 cooperates with the mounting base 191. An oil outlet pipe 202 is fixedly installed on the oil storage box 201. The air block 204 is hollow and elastic. The end of the oil outlet pipe 202 away from the oil storage box 201 faces the connection between the horizontal axis 12 and the connecting rod 15.

[0049] When the cage body 17 changes from a vertical state to a horizontal state, the connecting plate 5 drives the oil storage box 201 to move towards the mounting base 191 until the air block 204 abuts against the mounting base 191. The air in the air block 204 enters the oil storage box 201 along the air pipe 203, so that the lubricating oil in the oil storage box 201 is sprayed along the oil outlet pipe 202 onto the connection between the horizontal shaft 12 and the connecting rod 15, achieving a lubrication effect, thereby reducing the wear at that point and improving the service life.

[0050] A diffusion device 21 is provided inside the oil outlet pipe 202. The diffusion device 21 includes a positioning rod 211 fixedly installed inside the oil outlet pipe 202. An elastic rope 212 is fixedly installed on the positioning rod 211. A diffusion block 213 is fixedly installed on the elastic rope 212. A plurality of fine holes 214 are opened on the diffusion block 213.

[0051] When oil is sprayed from the oil outlet pipe 202, the lubricating oil can be sprayed out along the fine hole 214. At the same time, the lubricating oil will drive the diffuser block 213 to move and stretch the elastic rope 212. When the diffuser block 213 is separated from the oil outlet pipe 202, the lubricating oil can be sprayed out completely and diffused along the conical surface of the diffuser block 213, improving the spray atmosphere and thus improving the lubrication effect. After the oil spraying is completed, the elastic rope 212 drives the diffuser block 213 to reset and block the opening of the oil outlet pipe 202 to prevent impurities from entering.

[0052] It should be noted that when the air block 204 is restored to its original state and begins to inhale, the fine holes 214 can effectively allow air to enter.

[0053] Working principle: The forward rotation of motor 9 drives the lead screw 6 to rotate forward through the coupling. The forward rotation of lead screw 6 causes nut 13, connecting bracket 14 and horizontal shaft 12 to move. The third guide wheel 8 also moves synchronously within the straight guide rail 10 (the third guide wheel 8 can provide support within the straight guide rail 10). When the connecting rod 15 on the horizontal shaft 12 moves, it drives the other end of the connecting rod 15 to make an arc motion with the first guide wheel 2 installed on the cage bracket 1 on the cage body 17. This motion will cause the cage car to rotate around the axis of the second guide wheel 4 installed on the cage bracket 1 at the lower point of the cage body 17. At this time, the cage body 17 begins to tilt. When the cage car reaches the higher point... The guide wheel on bracket 1 makes an arc motion until it reaches the guide rail, and the rotation ends. At this time, since the motor 9 is still working, the nut 13, connecting bracket 14, connecting plate 5 and the third guide wheel 8 in the straight guide rail 10 will continue to move, driving the third guide wheel 8 at the high point of the cage to move in the straight guide rail 10. The second guide wheel 4 at the low point of the cage body 17 moves along the arc guide rail 3. When it moves to the horizontal straight section, the cage body 17 is in a horizontal state. At this time, the cage body 17 is flipped from a vertical state to a horizontal state. The motor 9 continues to rotate forward, and the cage body 17 moves in a horizontal state. After moving a certain distance, the motor 9 stops rotating, and the work ends.

[0054] Motor 9 reverses, driving the lead screw 6 mounted on bearing seat 7 to reverse via coupling. The reverse rotation of lead screw 6 causes nut 13 to move in the opposite direction. Simultaneously, connecting bracket 14 and horizontal shaft 12 mounted on nut 13 move together. The third guide wheel 8 in the straight guide rail 10 also moves within the straight guide rail 10. Connecting rod 15 mounted on horizontal shaft 12 drives the first guide wheel 2, whose other end is mounted on cage bracket 1 on cage body 17, to move linearly within the straight guide rail 10. When the second guide wheel 4 at the lowest point of cage body 17 moves within the arc-shaped guide rail 3 to the straight section and... At the connection point of the arc segment, the cage body 17 completes the translation, the third guide wheel 8 in the straight guide rail 10 continues to move, and the second guide wheel 4 in the arc guide rail 3 continues to move along the inclined section of the arc guide rail 3 to the bottom of the guide rail. At this time, the cage body 17 tilts, the motor 9 is still working, and the first guide wheel 2 at the high point of the cage rotates upward away from the straight guide rail 10 with the axis of the guide wheel at the low point of the cage body 17 as the axis of rotation until the cage body 17 becomes vertical and the work stops. At this time, the cage body 17 is flipped from horizontal to vertical and the work ends.

[0055] When the cage body 17 is tilted, slippage between the nut 13 and the lead screw 6 can cause the cage body 17 to move rapidly. In this case, the connecting plate 5 drives the sliding rod 182 to move within the sleeve 181. When the sliding rod 182 moves rapidly, the air pressure between the sealing block 183 and the sleeve 181 increases, causing the sealing block 188, the connecting plate 5, and the mounting plate 186 to move. When the mounting plate 186 moves, it stretches the spring 185. When the sealing block 188 moves into the air hole 184, it blocks the air hole 184. At this time, the air in the sleeve 181 and the sealing block 188 cannot be discharged and is compressed, thereby slowing down the movement speed of the connecting plate 5 and thus slowing down the movement speed of the cage body 17, reducing safety hazards.

[0056] When the air inside the sleeve 181 is compressed, the air enters the mounting base 191. The air pressure causes the pressure switch 192 to open and the warning light 193 to light up, thereby reminding the staff and facilitating timely inspection and maintenance.

[0057] When the cage body 17 changes from a vertical state to a horizontal state, the connecting plate 5 drives the oil storage box 201 to move toward the mounting base 191 until the air block 204 abuts against the mounting base 191. The air in the air block 204 enters the oil storage box 201 along the air pipe 203, so that the lubricating oil in the oil storage box 201 is sprayed along the oil outlet pipe 202 onto the connection between the horizontal shaft 12 and the connecting rod 15, achieving a lubrication effect, thereby reducing the wear at that point and improving the service life.

[0058] When oil is sprayed from the oil outlet pipe 202, the lubricating oil can be sprayed out along the fine hole 214. At the same time, the lubricating oil will drive the diffuser block 213 to move and stretch the elastic rope 212. When the diffuser block 213 is separated from the oil outlet pipe 202, the lubricating oil can be completely sprayed out and diffused along the conical surface of the diffuser block 213, improving the spray atmosphere and thus improving the lubrication effect. After the oil spraying is completed, the elastic rope 212 drives the diffuser block 213 to reset and block the opening of the oil outlet pipe 202 to prevent impurities from entering.

[0059] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the present invention's technology and inventive concept, should be covered within the scope of protection of the present invention.

Claims

1. A cargo loading and unloading tilting device for express delivery vehicles, comprising a mounting bracket (11) and a cage body (17), wherein a cage cart is disposed inside the cage, characterized in that, Also includes: A motor (9) is fixedly mounted on the mounting bracket (11). A pair of bearing seats (7) are fixedly mounted on the mounting bracket (11). A lead screw (6) is rotatably mounted inside the bearing seats (7). The output shaft of the motor (9) is fixedly connected to the lead screw (6) through a coupling. A nut (13) is provided on the lead screw (6). A connecting bracket (14) is provided on the nut (13). A horizontal shaft (12) is fixedly mounted on the connecting bracket (14). A pair of connecting plates (5) are fixedly mounted on the horizontal shaft (12). A third guide wheel (8) is rotatably mounted on the connecting plate (5). A pair of straight guide rails (10) are fixedly mounted on the mounting bracket (11). The third guide wheel (8) is located inside the straight guide rails (10). A pair of connecting rods (15) are rotatably mounted on the horizontal shaft (12) via bearings. A first guide wheel (2) is rotatably mounted on the connecting rod (15) via bearings. A cage support (1) is provided on the cage body (17). The first guide wheel (2) is fixedly connected to the cage support (1). A pair of arc-shaped guide rails (3) are fixedly mounted on the mounting bracket (11). A second guide wheel (4) is provided inside the arc-shaped guide rails (3). The second guide wheel (4) is fixedly connected to the cage support (1).

2. The cargo loading and unloading tilting device for a delivery vehicle according to claim 1, characterized in that, A crossbar (16) is fixedly installed on the connecting rod (15).

3. The cargo loading and unloading tilting device for a delivery vehicle according to claim 2, characterized in that, The straight guide rail (10) is equipped with a protective device (18) to prevent the cage body (17) from moving rapidly when the lead screw (6) and nut (13) slip.

4. A cargo loading and unloading tilting device for a delivery vehicle according to claim 3, characterized in that, The protective device (18) includes a sleeve (181) fixedly installed on a straight guide rail (10). A sliding rod (182) is slidably installed inside the sleeve (181). The sliding rod (182) is fixedly connected to a connecting plate (5). A sealing block (183) is fixedly installed on the sliding rod (182). An air hole (184) is opened on the sealing block (183). A spring (185) is fixedly installed on the sealing block (183). An mounting plate (186) is fixedly installed on the other end of the spring (185). A pair of connecting plates (187) located in the air hole (184) are fixedly installed on the mounting plate (186). A sealing block (188) is fixedly installed on the end of the connecting plate (187) away from the mounting plate (186).

5. A cargo loading and unloading tilting device for a delivery vehicle according to claim 4, characterized in that, The sleeve (181) is provided with a warning device (19), the warning device (19) includes a mounting base (191) fixedly installed on the sleeve (181), a pressure switch (192) is provided on the mounting base (191), and a warning light (193) is fixedly installed on the pressure switch (192).

6. A cargo loading and unloading tilting device for a delivery vehicle according to claim 4, characterized in that, The mounting base (191) is connected to the sleeve (181).

7. A cargo loading and unloading tilting device for a delivery vehicle according to claim 6, characterized in that, A lubrication device (20) is provided on the connecting plate (5). The lubrication device (20) includes an oil storage box (201) fixedly installed on the connecting plate (5). An air pipe (203) is fixedly installed on the oil storage box (201). An air block (204) is fixedly installed on the air pipe (203). The air block (204) cooperates with the mounting base (191). An oil outlet pipe (202) is fixedly installed on the oil storage box (201).

8. A cargo loading and unloading tilting device for a delivery vehicle according to claim 7, characterized in that, The air block (204) is hollow and elastic.

9. A cargo loading and unloading tipping device for a delivery vehicle according to claim 8, characterized in that, The end of the oil outlet pipe (202) away from the oil storage box (201) is directed toward the connection between the horizontal axis (12) and the connecting rod (15).

10. A cargo loading and unloading tilting device for a delivery vehicle according to claim 9, characterized in that, A diffusion device (21) is provided inside the oil outlet pipe (202). The diffusion device (21) includes a positioning rod (211) fixedly installed inside the oil outlet pipe (202). An elastic rope (212) is fixedly installed on the positioning rod (211). A diffusion block (213) is fixedly installed on the elastic rope (212). A plurality of fine holes (214) are opened on the diffusion block (213).

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