A transport trolley with rotating unloading function

Abstract

The present invention relates to a transport trolley, and in particular to a transport trolley with a rotating unloading function. The present invention provides a transport trolley with a rotating unloading function and an automatic marking stamp. A transport trolley with a rotating unloading function comprises: a transport body, a first rotating shaft, a first wheel, a universal wheel and a servo motor, etc.; the lower part of the transport body is rotatably provided with a first rotating shaft, both sides of the first rotating shaft are provided with first wheels, the middle part of the transport body is rotatably provided with a universal wheel, and a servo motor is installed in the middle part of the transport body. In the present invention, after the splint moves downward to contact the goods, the fixed frame continues to move downward, and the telescopic assembly is contracted, so that the splint fixes the goods to prevent the goods from falling from the rotating upper shelf and being damaged, thereby achieving the effect of the splint fixing the goods.

Description

Technical Field

[0001] The invention relates to a transport trolley, in particular to a transport trolley with a rotating unloading function. Background Art

[0002] The role of transport carts in production and life is becoming more and more important and indispensable. In order to improve delivery efficiency and save delivery time, it is necessary to realize the transportation and unloading of goods with large mass and small volume. According to the comparison with the existing technology, it is found that most of the transport carts are unable to realize the function of unloading goods from trucks and can only rely on traditional forklifts, manual transportation, etc.

[0003] It is impossible to unload goods from a traditional transport cart, and workers need to unload the goods manually. In addition, the transport cart does not have a rotating function, so workers need to expend more effort to unload the goods. Workers are also required to mark and stamp the goods to distinguish them and make it easier for them to identify the goods.

[0004] For this purpose, we have designed a transport trolley with rotating unloading function and automatic marking stamp. Summary of the invention

[0005] In order to overcome the shortcomings of the traditional transport trolley that it does not have the rotary unloading function and cannot automatically mark a seal, the present invention provides a transport trolley with a rotary unloading function and an automatic seal marking function.

[0006] The technical implementation scheme of the present invention is: a transport trolley with a rotating unloading function, including: a transport body, a first rotating shaft, a first wheel, a universal wheel, a servo motor, a rotating upper shelf, a limit frame, a first contact switch, a second contact switch, a clamping mechanism and a positioning mechanism. The lower part of the transport body is rotatably provided with a first rotating shaft, first wheels are provided on both sides of the first rotating shaft, the middle part of the transport body is rotatably provided with a universal wheel, a servo motor is installed in the middle part of the transport body, a rotating upper shelf for placing goods is provided on the output shaft of the servo motor, a limit frame is provided on the rotating upper shelf, a first contact switch is provided on the upper part of the transport body, a second contact switch is provided on the upper part of the transport body, a clamping mechanism is provided on the upper part of the limit frame, and a positioning mechanism is provided on the transport body.

[0007] In a preferred embodiment of the present invention, the clamping mechanism includes: a distance sensor is provided in the middle of the lower part of the limit frame, a first electric push rod is installed on the upper part of the limit frame, a first telescopic rod is provided on the upper part of the limit frame, a fixed frame is connected between the telescopic rod of the first electric push rod and the first telescopic rod, a plurality of telescopic components are provided at the bottom of the fixed frame, a clamping plate for clamping goods is connected between the plurality of telescopic components, a first photoelectric sensor is provided on the transport vehicle body, and a second photoelectric sensor is provided on the transport vehicle body.

[0008] In a preferred embodiment of the present invention, the positioning mechanism includes: a pressure sensor is provided in the middle of the bottom of the splint, a dual-axis reduction motor is installed in the middle of the lower part of the transport vehicle body, rotating frames are provided on both sides of the output shaft of the dual-axis reduction motor, and limit plates are provided on the upper sides of the two rotating frames.

[0009] In a preferred embodiment of the present invention, an anti-slip mechanism is also included, which includes: a third photoelectric sensor is provided in the middle of the transport vehicle body, a second electric push rod is installed in the middle of the bottom of the limit frame, a guide frame is provided on the telescopic rod of the second electric push rod, a first sliding frame is slidably provided on the guide frame, and the first sliding frame is slidably connected to the rotating upper shelf.

[0010] In a preferred embodiment of the present invention, an anti-stuck mechanism is also included, which includes: a third electric push rod is installed at the bottom of the rotating upper shelf, a fourth electric push rod is installed at the bottom of the rotating upper shelf, the telescopic rod of the third electric push rod and the telescopic rod of the fourth electric push rod are both provided with connecting rods, and the two connecting rods are both provided with pushing plates for pushing down goods.

[0011] In a preferred embodiment of the present invention, it also includes a marking mechanism, which includes: fixed blocks are provided on both sides of the splint, sliding rods are provided on both sides of the fixed frame, a second sliding frame is slidably connected between the two sliding rods, wedge blocks are provided on both sides of the second sliding frame, a first spring is wound around the two sliding rods, both ends of the first spring are respectively connected to the fixed frame and the second sliding frame, and a circular seal machine for marking goods is provided in the middle of the lower part of the second sliding frame.

[0012] In a preferred embodiment of the present invention, a power-assisting mechanism is also included, which includes: a rotating pedal is rotatably provided in the middle of the lower part of the transport vehicle body, a telescopic frame is provided at the bottom of the rotating pedal, a second rotating shaft is rotatably provided at the lower part of the telescopic frame, a second wheel is provided on the second rotating shaft, and second springs are wound on both sides of the rotating pedal, and both ends of the second spring are respectively connected to the transport vehicle body and the rotating pedal.

[0013] In a preferred embodiment of the present invention, it also includes a control box. The control box is installed in the middle of the lower side of the transport vehicle body. The control box is installed with a battery, a control module and a power module. The battery is used to power the transport vehicle with a rotating unloading function. The output end of the battery is electrically connected to the power module. The power module is connected to a main power switch through a line, and the control module and the power module are electrically connected; the control module is connected to a DS1302 clock circuit and a 24C02 circuit; the first contact switch, the second contact switch, the distance sensor, the first photoelectric sensor, the second photoelectric sensor, the pressure sensor and the third photoelectric sensor are all electrically connected to the control module, the first electric push rod, the second electric push rod, the third electric push rod and the fourth electric push rod are all connected to the control module through a relay control module, the dual-axis reduction motor is connected to the control module through a DC motor forward and reverse module, and the servo motor is connected to the control module through a stepper motor drive module.

[0014] The present invention provides a transport trolley with a rotating unloading function, which has the following beneficial effects:

[0015] 1. In the present invention, after the clamp moves downward to contact the goods, the fixing frame continues to move downward, and the telescopic assembly is contracted, so that the clamp fixes the goods to prevent the goods from falling from the rotating upper shelf and being damaged, thereby achieving the effect of fixing the goods with the clamp;

[0016] 2. When the limit plate rotates forward to contact the goods, the limit plate fixes the goods and makes the center of gravity of the goods in the middle, which is convenient for stable transportation and prevents the goods from falling on the ground and being damaged during transportation, thus achieving the effect of protecting the goods by the limit plate;

[0017] 3. After the circular seal machine moves backward to contact the goods, the circular seal machine marks the goods, which is convenient for users to distinguish the goods and achieves the effect of the circular seal machine marking the goods;

[0018] 4. When the push plate on the left moves to the right and contacts the goods, the goods are pushed to prevent them from getting stuck on the rotating upper shelf, thus achieving the effect of the push plate pushing the goods down. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure from the first viewing angle of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure from a second viewing angle of the present invention.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure from a third viewing angle of the present invention.

[0022] Figure 4 It is a schematic diagram of the third perspective structure of the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the first part such as the transport vehicle body and the first rotating shaft of the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the second part including the transport vehicle body and the first rotating shaft of the present invention.

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the first part of the clamping mechanism of the present invention.

[0026] Figure 8 It is a schematic diagram of the third part of the three-dimensional structure of the clamping mechanism of the present invention.

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the first part of the positioning mechanism of the present invention.

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the second part of the positioning mechanism of the present invention.

[0029] Fig.11 It is a three-dimensional structural schematic diagram of the anti-slip mechanism of the present invention.

[0030] Fig.12 It is a partial three-dimensional structural schematic diagram of the anti-slip mechanism of the present invention.

[0031] Fig.13 It is a schematic diagram of the three-dimensional structure of the anti-jamming mechanism of the present invention.

[0032] Fig.14 It is a schematic diagram of the three-dimensional structure of the marking mechanism of the present invention.

[0033] Fig.15 It is a schematic diagram of the three-dimensional structure of the power assisting mechanism of the present invention.

[0034] Fig.16 It is a circuit block diagram of the present invention.

[0035] Fig.17 It is a circuit schematic diagram of the present invention.

[0036] The markings of the components in the accompanying drawings are as follows: 1. transport vehicle body, 2. first rotating shaft, 3. first wheel, 4. universal wheel, 5. control box, 6. servo motor, 7. rotating upper shelf, 8. limit frame, 9. first contact switch, 10. second contact switch, 11. clamping mechanism, 111. distance sensor, 112. first electric push rod, 113. first telescopic rod, 114. fixed frame, 115. telescopic assembly, 116. clamping plate, 117. first photoelectric sensor, 118. second photoelectric sensor, 12. positioning mechanism, 121. pressure sensor, 122. dual-axis reduction motor, 123. rotating frame, 12 4. limit plate, 13. anti-slip mechanism, 131. third photoelectric sensor, 132. second electric push rod, 133. guide frame, 134. first sliding frame, 14. anti-stuck mechanism, 141. third electric push rod, 142. connecting rod, 143. push plate, 144. fourth electric push rod, 15. marking mechanism, 151. fixed block, 152. slide rod, 153. second sliding frame, 154. wedge block, 155. first spring, 156. circular stamp machine, 16. power assist mechanism, 161. rotating pedal, 162. telescopic frame, 163. second wheel, 164. second spring, 165. second rotating shaft. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] See also Figure 1-Figure 17 The present invention provides a technical solution: a transport trolley with a rotating unloading function, comprising a transport body 1, a first rotating shaft 2, a first wheel 3, a universal wheel 4, a servo motor 6, a rotating upper shelf 7, a limit frame 8, a first contact switch 9, a second contact switch 10, a clamping mechanism 11 and a positioning mechanism 12. The first rotating shaft 2 is rotatably provided on the rear side of the lower part of the transport body 1, and the first wheels 3 are installed on both sides of the left and right sides of the first rotating shaft 2. The universal wheel 4 is rotatably provided on the middle part of the front side of the transport body 1. The servo motor 6 is fixedly installed in the middle part of the transport body 1 by bolts, and the rotating upper shelf 7 is welded on the front side of the output shaft of the servo motor 6. The limiting frame 8 is welded on the rear side of the rotating upper shelf 7. The first contact switch 9 is installed on the right side of the upper part of the transport body 1, and the second contact switch 10 is installed on the left side of the upper part of the transport body 1. The clamping mechanism 11 is provided on the upper part of the limit frame 8, and the positioning mechanism 12 is provided on the rear side of the transport body 1.

[0039] The clamping mechanism 11 includes a distance sensor 111, a first electric push rod 112, a first telescopic rod 113, a fixing frame 114, a telescopic assembly 115, a clamping plate 116, a first photoelectric sensor 117 and a second photoelectric sensor 118. The distance sensor 111 is installed in the middle of the lower front side of the limiting frame 8, the first electric push rod 112 is fixedly installed on the left side of the upper part of the limiting frame 8 by bolts, the first telescopic rod 113 is provided on the right side of the upper part of the limiting frame 8, the fixing frame 114 is connected between the top of the telescopic rod of the first electric push rod 112 and the top of the first telescopic rod 113, a plurality of telescopic assemblies 115 are provided at the bottom of the fixing frame 114, and a clamping plate 116 is connected between the plurality of telescopic assemblies 115, the first photoelectric sensor 117 is installed on the right front side of the transport vehicle body 1, and the second photoelectric sensor 118 is installed on the left front side of the transport vehicle body 1.

[0040] The positioning mechanism 12 includes a pressure sensor 121, a dual-axis reduction motor 122, a rotating frame 123 and a limit plate 124. The pressure sensor 121 is installed in the middle of the bottom of the clamp 116. The dual-axis reduction motor 122 is fixed by bolts in the middle of the lower rear side of the transport vehicle body 1. Rotating frames 123 are provided on the left and right sides of the output shaft of the dual-axis reduction motor 122, and limit plates 124 are welded on the upper sides of the two rotating frames 123.

[0041] It also includes an anti-slip mechanism 13, which includes a third photoelectric sensor 131, a second electric push rod 132, a guide frame 133 and a first sliding frame 134. The third photoelectric sensor 131 is installed in the middle of the left side of the transport vehicle body 1, and the second electric push rod 132 is fixedly installed in the middle of the bottom of the limiting frame 8 by bolts. The front side of the telescopic rod of the second electric push rod 132 is provided with a guide frame 133, and the front side of the guide frame 133 is slidably provided with a first sliding frame 134, and the first sliding frame 134 is slidably connected to the rotating upper shelf 7.

[0042] It also includes an anti-stuck mechanism 14, which includes a third electric push rod 141, a connecting rod 142, a pushing plate 143 and a fourth electric push rod 144. The third electric push rod 141 is fixedly installed on the left rear part of the bottom of the rotating upper shelf 7 by bolts, and the fourth electric push rod 144 is fixedly installed on the right rear part of the bottom of the rotating upper shelf 7 by bolts. A connecting rod 142 is provided on the right side of the telescopic rod of the fourth electric push rod 144 and the left side of the telescopic rod of the third electric push rod 141, and a pushing plate 143 is provided on the front side of the two connecting rods 142.

[0043] It also includes an identification mechanism 15, which includes a fixed block 151, a slide bar 152, a second sliding frame 153, a wedge block 154, a first spring 155 and a circular seal machine 156. Fixed blocks 151 are welded on both sides of the front left and right sides of the splint 116, slide bars 152 are provided on both sides of the front left and right sides of the fixed frame 114, a second sliding frame 153 is slidably connected between the front sides of the two slide bars 152, wedge blocks 154 are provided on both sides of the rear left and right sides of the second sliding frame 153, the wedge blocks 154 cooperate with the fixed block 151, and the first spring 155 is wound around the two slide bars 152. The two ends of the first spring 155 are respectively connected to the fixed frame 114 and the second sliding frame 153, and a circular seal machine 156 is installed in the middle of the lower part of the second sliding frame 153.

[0044] The utility model also includes a power-assisting mechanism 16, which includes a rotating pedal 161, a telescopic frame 162, a second wheel 163, a second spring 164 and a second rotating shaft 165. A rotating pedal 161 is rotatably provided in the middle of the lower rear side of the transport vehicle body 1, a telescopic frame 162 is provided at the bottom of the rotating pedal 161, a second rotating shaft 165 is rotatably provided at the lower part of the telescopic frame 162, and a second wheel 163 is installed on the second rotating shaft 165. Second springs 164 are wound around the left and right sides of the rotating pedal 161, and the two ends of the second spring 164 are respectively connected to the transport vehicle body 1 and the rotating pedal 161.

[0045] The transport vehicle 1 further comprises a control box 5, which is fixedly installed with bolts at the middle part of the lower side of the transport vehicle body 1, and a battery, a control module and a power module are installed in the control box 5. The battery supplies power to the transport vehicle with a rotating unloading function, and the output end of the battery is electrically connected to the power module. The power module is connected to a main power switch through a line, and the control module and the power module are electrically connected; a DS1302 clock circuit and a 24C02 circuit are connected to the control module; the first contact switch 9, the second contact switch 10, the distance sensor 111, the first photoelectric sensor 117, the second photoelectric sensor 118, the pressure sensor 121 and the third photoelectric sensor 131 are all electrically connected to the control module, the first electric push rod 112, the second electric push rod 132, the third electric push rod 141 and the fourth electric push rod 144 are all connected to the control module through a relay control module, the dual-axis reduction motor 122 is connected to the control module through a DC motor forward and reverse module, and the servo motor 6 is connected to the control module through a stepper motor drive module.

[0046] The working principle of the present invention is that when people want to transport goods, they can use this transport trolley with a rotating unloading function. First, the user presses the main power switch to power on the device, and the user pushes the transport vehicle body 1 forward, and the first wheel 3 and the universal wheel 4 contact and cooperate with the ground, thereby driving the first wheel 3 and the universal wheel 4 to rotate, and the first wheel 3 drives the first rotating shaft 2 to rotate, and the first wheel 3 and the universal wheel 4 drive the transport vehicle body 1, the servo motor 6, the rotating upper shelf 7, the limit frame 8, the first contact switch 9, the second contact switch 10, the clamping mechanism 11 and the positioning mechanism 12 to move forward. After the rotating upper shelf 7 moves forward to contact the goods, the rotating upper shelf 7 lifts the goods so that the goods are placed on the rotating upper shelf 7. The limit frame 8 limits the goods, thereby maintaining the center of gravity of the goods. When the distance between the goods and the clamping mechanism 11 reaches the preset value of the clamping mechanism 11, the control module clamping mechanism 11 is operated, and the clamping mechanism 11 clamps the goods to prevent the goods from falling from the rotating upper shelf 7 and being damaged. When the pressure generated by the goods reaches the preset value of the positioning mechanism 12, the control module controls the positioning mechanism 12 to operate, and the positioning mechanism 12 fixes the goods. After the goods are lifted, the user turns the universal wheel 4 to adjust the moving direction of the transport vehicle body 1. When the transport vehicle body 1 moves to the specified position, the user stops pushing the transport vehicle body 1, and the first wheel 3 and the universal wheel 4 stop rotating accordingly. The user wants to move the goods to the right When unloading, the user presses the first contact switch 9, so that the control module controls the servo motor 6 to work for three seconds. The output shaft of the servo motor 6 drives the rotating upper shelf 7, the limit frame 8, the clamping mechanism 11 and the goods to rotate to the right. After the goods rotate to the right and cover the clamping mechanism 11, when the intensity of the light reaches the preset value of the clamping mechanism 11, the control module controls the clamping mechanism 11 to release the clamping state of the goods. When the pressure generated by the goods is less than the preset value of the positioning mechanism 12, the control module controls the positioning mechanism 12 to operate in the reverse direction, so that the positioning mechanism 12 releases the fixed state of the goods, and the goods slide to the ground along the rotating upper shelf 7. When the user wants to unload the goods to the left, the user presses the second contact switch 10, so that the control module The block controls the servo motor 6 to work for three seconds, and the output shaft of the servo motor 6 drives the rotating upper shelf 7, the limit frame 8, the clamping mechanism 11 and the goods to rotate to the left. After the goods rotate to the left and cover the clamping mechanism 11, when the intensity of the light reaches the preset value of the clamping mechanism 11, the control module controls the clamping mechanism 11 to release the clamping state of the goods. When the pressure generated by the goods is less than the preset value of the positioning mechanism 12, the control module controls the positioning mechanism 12 to operate in the reverse direction, so that the positioning mechanism 12 releases the fixed state of the goods, and the goods slide along the rotating upper shelf 7 to the ground. After the transportation of the goods is completed, the user pushes the transport vehicle 1 again to move the transport vehicle 1 to restore the original position, and the user presses the main power switch again to cut off the power of the device.

[0047] After the rotating upper shelf 7 lifts the goods, when the distance between the goods and the distance sensor 111 reaches the preset value of the distance sensor 111, the control module controls the telescopic rod of the first electric push rod 112 to shorten downward for two seconds and then close, the telescopic rod of the first electric push rod 112 drives the fixed frame 114 to move downward, the fixed frame 114 drives the first telescopic rod 113 to retract downward, the fixed frame 114 drives the telescopic assembly 115 and the clamping plate 116 to move downward, after the clamping plate 116 moves downward to contact with the goods, the fixed frame 114 continues to move downward, the telescopic assembly 115 is retracted, so that the clamping plate 116 fixes the goods to prevent the goods from falling from the rotating upper shelf 7 and being damaged. When the transport vehicle body 1 moves to the specified position, When the user wants to unload the goods to the right, the user presses the first contact switch 9, so that the control module controls the servo motor 6 to work for three seconds, and the output shaft of the servo motor 6 drives the upper shelf 7, the limit frame 8, the first electric push rod 112, the first telescopic rod 113, the fixed frame 114, the telescopic assembly 115, the clamping plate 116 and the goods to rotate to the right. After the goods rotate to the right to cover the first photoelectric sensor 117, when the light intensity reaches the preset value of the first photoelectric sensor 117, the control module controls the telescopic rod of the first electric push rod 112 to extend upward for two seconds and then close. The telescopic rod of the first electric push rod 112 drives the fixed frame 114 to move upward, and the fixed frame 114 drives the first telescopic rod 113 to extend upward. The fixed frame 114 drives the telescopic component 115 and the clamping plate 116 to move upward. After the clamping plate 116 moves upward and separates from the goods, the goods slide onto the ground along the rotating upper shelf 7. After three seconds, the control module controls the servo motor 6 to work for three seconds and then shut down. The output shaft of the servo motor 6 drives the rotating upper shelf 7, the limit frame 8, the first electric push rod 112, the first telescopic rod 113, the fixed frame 114, the telescopic component 115, the clamping plate 116 and the goods to rotate to the left to restore the original position. When the user wants to unload the goods to the left, the user presses the second contact switch 10, so that the control module controls the servo motor 6 to work for three seconds. The output shaft of the servo motor 6 drives the rotating upper shelf 7, the limit frame 8, the first electric push rod 112, the first telescopic rod 113, the fixed frame 114, the telescopic component 115, the clamping plate 116 and the goods rotate to the left. After the goods rotate to the left to cover the second photoelectric sensor 118, when the light intensity reaches the preset value of the second photoelectric sensor 118, the control module controls the telescopic rod of the first electric push rod 112 to extend upward for two seconds and then turn off. The telescopic rod of the first electric push rod 112 drives the fixed frame 114 to move upward, and the fixed frame 114 drives the first telescopic rod 113 to extend upward. The fixed frame 114 drives the telescopic component 115 and the clamping plate 116 to move upward. After the clamping plate 116 moves upward and separates from the goods, the goods slide along the rotating upper shelf 7 and fall to the ground. After three seconds, the control module controls the servo motor 6 to work for three seconds and then turn off.The output shaft of the servo motor 6 drives the upper shelf 7, the limit frame 8, the first electric push rod 112, the first telescopic rod 113, the fixed frame 114, the telescopic assembly 115, the clamping plate 116 and the goods to rotate rightward to restore the original position.

[0048] When the clamping plate 116 moves downward, the clamping plate 116 drives the pressure sensor 121 to move downward. After the pressure sensor 121 moves downward until it contacts the cargo, when the pressure generated by the cargo reaches the preset value of the pressure sensor 121, the control module controls the dual-axis reduction motor 122 to work for two seconds and then shut down. The output shaft of the dual-axis reduction motor 122 drives the rotating frame 123 and the limit plate 124 to rotate forward. After the limit plate 124 rotates forward until it contacts the cargo, the limit plate 124 fixes the cargo and makes the center of gravity of the cargo centered, so that In order to stabilize transportation and prevent the goods from falling to the ground and being damaged during transportation, when the splint 116 moves upward, the splint 116 drives the pressure sensor 121 to move upward. After the pressure sensor 121 moves upward and separates from the goods, when the pressure generated by the goods is less than the preset value of the pressure sensor 121, the control module controls the dual-axis reduction motor 122 to work for two seconds and then shut down. The output shaft of the dual-axis reduction motor 122 drives the rotating frame 123 and the limit plate 124 to rotate backward to return to their original position, so that the limit plate 124 is away from the goods.

[0049] When the rotating frame 123 moves backward, the third photoelectric sensor 131 is covered during the backward movement of the rotating frame 123. When the intensity of light reaches the preset value of the third photoelectric sensor 131, the control module controls the telescopic rod of the second electric push rod 132 to extend forward for two seconds and then close. The telescopic rod of the second electric push rod 132 drives the guide frame 133 and the first sliding frame 134 to move forward. When the limiting frame 8 rotates to the right, the limiting frame 8 drives the second electric push rod 132, the guide frame 133 and the first sliding frame 134 to rotate to the right. The first sliding frame 134 moves upward along the rotating upper shelf 7, and the first sliding frame 134 limits the goods. To prevent the goods from sliding forward, when the rotating frame 123 moves forward for the second time, the third photoelectric sensor 131 will be covered during the forward movement of the rotating frame 123. When the light intensity reaches the preset value of the third photoelectric sensor 131, the control module controls the telescopic rod of the second electric push rod 132 to shorten backward for two seconds and then close. The telescopic rod of the second electric push rod 132 drives the guide frame 133 and the first sliding frame 134 to move backward. When the limit frame 8 rotates to the left, the limit frame 8 drives the second electric push rod 132, the guide frame 133 and the first sliding frame 134 to rotate to the left, and the first sliding frame 134 moves downward along the rotating upper shelf 7 to return to its original position.

[0050] When the rotating upper shelf 7 rotates to the right, the rotating upper shelf 7 drives the goods to rotate to the right. After the goods rotate to the right to cover the first photoelectric sensor 117, when the light intensity reaches the preset value of the first photoelectric sensor 117, the control module controls the telescopic rod of the third electric push rod 141 to shorten for one second to the right and then close. The telescopic rod of the third electric push rod 141 drives the connecting rod 142 on the left and the pushing plate 143 on the left to move to the right. After the pushing plate 143 on the left moves to the right until it contacts the goods, the goods are pushed to prevent the goods from being stuck on the rotating upper shelf 7. After the goods are pushed down, when the light intensity is greater than the preset value of the first photoelectric sensor 117, the control module controls the telescopic rod of the third electric push rod 141 to extend for one second to the left and then close. The telescopic rod of the third electric push rod 141 drives the connecting rod 142 on the left and the pushing plate 143 on the left to move to the left. When the movable upper shelf 7 rotates to the left, the rotating upper shelf 7 drives the goods to rotate to the left. After the goods rotate to the left to cover the second photoelectric sensor 118, when the light intensity reaches the preset value of the second photoelectric sensor 118, the control module controls the telescopic rod of the fourth electric push rod 144 to shorten for one second to the left and then close. The telescopic rod of the fourth electric push rod 144 drives the right connecting rod 142 and the right pushing plate 143 to move to the left. After the right pushing plate 143 moves to the left until it contacts the goods, the goods are pushed to prevent the goods from being stuck on the rotating upper shelf 7. After the goods are pushed down, when the light intensity is greater than the preset value of the second photoelectric sensor 118, the control module controls the telescopic rod of the fourth electric push rod 144 to extend for one second to the right and then close. The telescopic rod of the fourth electric push rod 144 drives the right connecting rod 142 and the right pushing plate 143 to move to the right to return to their original positions.

[0051] When the fixing frame 114 moves downward, the fixing frame 114 drives the telescopic assembly 115, the clamping plate 116, the fixing block 151, the sliding rod 152, the second sliding frame 153, the wedge block 154, the first spring 155 and the circular stamp machine 156 to move downward. After the clamping plate 116 moves downward to contact with the goods, the fixing frame 114 continues to move downward. After the wedge block 154 moves downward and separates from the fixing block 151, the first spring 155 in the stretched state is reset, thereby driving the second sliding frame 153, the wedge block 154 and the circular stamp machine 156 to move backward. Movement, the circular stamp machine 156 moves backward until it contacts the goods, and the circular stamp machine 156 marks the goods with a stamp, which is convenient for users to distinguish the goods. When the fixed frame 114 moves upward, the fixed frame 114 drives the slide bar 152, the first spring 155, the second sliding frame 153, the wedge block 154 and the circular stamp machine 156 to move upward. After the wedge block 154 moves upward and contacts the fixed block 151, it drives the wedge block 154, the second sliding frame 153 and the circular stamp machine 156 to move forward, and the first spring 155 is stretched.

[0052] The user places his foot on the rotating pedal 161, and then rotates the rotating pedal 161 with his foot. The rotating pedal 161 drives the second rotating shaft 165, the telescopic frame 162 and the second wheel 163 to rotate, and the second spring 164 is twisted and deformed. By adjusting the angle of the rotating pedal 161, the transport vehicle body 1 is provided with a power assist, thereby reducing the user's physical energy consumption. When the transport vehicle body 1 moves to the specified position, the user takes the foot out of the rotating pedal 161, and the second spring 164 is reset, thereby driving the rotating pedal 161, the telescopic frame 162, the second wheel 163 and the second rotating shaft 165 to rotate in the opposite direction to return to the original position.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A transport trolley with a rotating unloading function, characterized in that it includes: A transport vehicle body (1), a first rotating shaft (2), a first wheel (3), a universal wheel (4), a servo motor (6), a rotating upper shelf (7), a limit frame (8), a first contact switch (9), a second contact switch (10), a clamping mechanism (11) and a positioning mechanism (12); a first rotating shaft (2) is rotatably provided at the lower part of the transport vehicle body (1); first wheels (3) are provided on both sides of the first rotating shaft (2); a universal wheel (4) is rotatably provided at the middle part of the transport vehicle body (1); a servo motor (6) is installed at the middle part of the transport vehicle body (1); a rotating upper shelf (7) for placing goods is provided on the output shaft of the servo motor (6); a limit frame (8) is provided on the rotating upper shelf (7); and the transport vehicle body (1) A first contact switch (9) is provided on the upper part, a second contact switch (10) is provided on the upper part of the transport vehicle body (1), a clamping mechanism (11) is provided on the upper part of the limit frame (8), and a positioning mechanism (12) is provided on the transport vehicle body (1); the clamping mechanism (11) comprises: a distance sensor (111) is provided on the lower part of the limit frame (8), a first electric push rod (112) is installed on the upper part of the limit frame (8), a first telescopic rod (113) is provided on the upper part of the limit frame (8), a fixing frame (114) is connected between the telescopic rod of the first electric push rod (112) and the first telescopic rod (113), a plurality of telescopic components (115) are provided at the bottom of the fixing frame (114), and a plurality of telescopic components (115) are connected between the plurality of telescopic components (115). The cargo clamping plate (116) is provided with a first photoelectric sensor (117) on the transport vehicle body (1), and a second photoelectric sensor (118) is provided on the transport vehicle body (1); the positioning mechanism (12) comprises: a pressure sensor (121) is provided in the middle of the bottom of the clamping plate (116); a double-axis reduction motor (122) is installed in the middle of the lower part of the transport vehicle body (1); rotating frames (123) are provided on both sides of the output shaft of the double-axis reduction motor (122); and limit plates (124) are provided on the upper sides of the two rotating frames (123); and an anti-slipping mechanism (13) is also included. The anti-slipping mechanism (13) comprises: a third photoelectric sensor (131) is provided in the middle of the transport vehicle body (1), and a second photoelectric sensor (118) is installed in the middle of the bottom of the limit frame (8). An electric push rod (132), a guide frame (133) is provided on the telescopic rod of the second electric push rod (132), a first sliding frame (134) is slidably provided on the guide frame (133), and the first sliding frame (134) is slidably connected to the rotating upper shelf (7); and an anti-stuck mechanism (14) is also included, the anti-stuck mechanism (14) comprising: a third electric push rod (141) is installed at the bottom of the rotating upper shelf (7), a fourth electric push rod (144) is installed at the bottom of the rotating upper shelf (7), the telescopic rod of the third electric push rod (141) and the telescopic rod of the fourth electric push rod (144) are both provided with a connecting rod (142), and the two connecting rods (142) are both provided with a pushing plate (143) for pushing down goods;The marking mechanism (15) also includes: a fixing block (151) is provided on both sides of the clamping plate (116); a sliding rod (152) is provided on both sides of the fixing frame (114); a second sliding frame (153) is slidably connected between the two sliding rods (152); wedge blocks (154) are provided on both sides of the second sliding frame (153); a first spring (155) is wound around the two sliding rods (152); two ends of the first spring (155) are respectively connected to the fixing frame (114) and the second sliding frame (153); and a circular seal machine (156) for marking goods is provided in the middle of the lower part of the second sliding frame (153); After the clamping plate (116) moves downward until it contacts the goods, the fixing frame (114) continues to move downward, and after the wedge block (154) moves downward and separates from the fixing block (151), the first spring (155) in a stretched state is reset, thereby driving the second sliding frame (153), the wedge block (154) and the circular stamping machine 156 to move backward. After the circular stamping machine (156) moves backward until it contacts the goods, the circular stamping machine (156) marks the goods with a stamp, making it convenient for the user to check the goods. When the fixed frame (114) moves upward, the fixed frame (114) drives the slide bar (152), the first spring (155), the second slide frame (153), the wedge block (154) and the circular seal machine (156) to move upward. After the wedge block (154) moves upward until it contacts the fixed block (151), it drives the wedge block (154), the second slide frame (153) and the circular seal machine (156) to move forward, and the first spring (155) is stretched.

2. A transport trolley with a rotating unloading function according to claim 1, characterized in that: The vehicle also includes a power assist mechanism (16), which includes: a rotating pedal (161) is rotatably provided in the middle of the lower part of the transport vehicle body (1); a telescopic frame (162) is provided at the bottom of the rotating pedal (161); a second rotating shaft (165) is rotatably provided at the lower part of the telescopic frame (162); a second wheel (163) is provided on the second rotating shaft (165); and second springs (164) are wound around both sides of the rotating pedal (161); and two ends of the second spring (164) are respectively connected to the transport vehicle body (1) and the rotating pedal (161).

3. A transport trolley with a rotating unloading function according to claim 2, characterized in that: The transport vehicle body (1) also includes a control box (5), which is installed in the middle of the lower side of the transport vehicle body (1), and a battery, a control module and a power module are installed in the control box (5). The battery is used to supply power to the transport vehicle with a rotating unloading function. The output end of the battery is electrically connected to the power module. The power module is connected to a main power switch through a line. The control module and the power module are electrically connected. The control module is connected to a DS1302 clock circuit and a 24C02 circuit. The first contact switch (9), the second contact switch (10), and the distance sensor (11 1), the first photoelectric sensor (117), the second photoelectric sensor (118), the pressure sensor (121) and the third photoelectric sensor (131) are all electrically connected to the control module, the first electric push rod (112), the second electric push rod (132), the third electric push rod (141) and the fourth electric push rod (144) are all connected to the control module via a relay control module, the dual-axis reduction motor (122) is connected to the control module via a DC motor forward and reverse module, and the servo motor (6) is connected to the control module via a stepper motor drive module.

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