Power-switchable loading and unloading trolley

Abstract

The utility model relates to an on-line and off-line trolley capable of switching power, which is used for conveying carriers and comprises a trolley conveying unit for conveying the carriers through power; the power system is used for providing power for the trolley conveying unit; the trolley end blocking unit is arranged between the trolley conveying unit and the power system and used for preventing the carrier from falling off due to the backward sliding phenomenon after the carrier enters the trolley conveying unit; and the trolley locking unit is used for pausing the operation of the trolley conveying unit. Compared with the prior art, power can be switched at any time, the labor intensity and the number of workers are effectively reduced, and the working efficiency and the operation accuracy are improved. And the system can be widely applied to warehouse management, logistics distribution and automatic production lines which need a manual transfer online and offline process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of logistics, in particular to a power-switchable on-off trolley. BACKGROUND

[0002] With the development of automation and intelligent technology, the logistics, warehousing and manufacturing industries have an increasing demand for efficient and accurate cargo handling equipment. Batch production of goods is usually achieved through production lines. In order to plan the overall process and make rational use of limited space, sometimes the on-off of the carrier cannot be completely realized by full automation. At this time, manual operation of the trolley is needed to on-off. The manual operation trolley needs to run within the required station range and cannot carry a power source. When the carrier is heavy, it seriously increases the labor intensity of the operator. In order to reduce the labor intensity of the operator and the accuracy of the carrier, a power-switchable on-off trolley is needed.

[0003] The traditional on-off trolley usually has no power due to its own use characteristics. The carrier needs to be manually pushed out or pulled into the on-off trolley. When the carrier is heavy, the number of operators needs to be increased. This seriously increases the labor intensity of the operators and reduces work efficiency, resulting in waste of human resources. Manual operation also cannot guarantee the accuracy of the carrier. SUMMARY

[0004] The present application is to overcome the shortcomings of the prior art and provide a power-switchable on-off trolley.

[0005] The object of the present application can be achieved by the following technical solutions:

[0006] The technical scheme of the present application provides a power-switchable on-off trolley for conveying a carrier, comprising:

[0007] A trolley conveying unit for conveying the carrier by power;

[0008] A power system for providing power to the trolley conveying unit;

[0009] A trolley end stop unit arranged between the trolley conveying unit and the power system for preventing the carrier from falling after entering the trolley conveying unit;

[0010] A trolley locking unit for pausing the operation of the trolley conveying unit;

[0011] Among them,

[0012] The power system comprises a power receiving unit connected with the trolley conveying unit and used for transmitting power to the trolley conveying unit;

[0013] a power output unit connected with the power receiving unit and used for transmitting power to the power receiving unit;

[0014] a power conveying unit connected with the power output unit and used for transmitting power to the power output unit.

[0015] In some embodiments, the trolley conveying unit comprises a trolley support frame, a plurality of first conveying rollers arranged in parallel on the trolley support frame and connected with the power receiving unit.

[0016] In some embodiments, the trolley support frame is further provided with a carrier blocking plate at the end thereof for preventing the front carrier from falling off, and the trolley support frame is further provided with a walking wheel at the bottom thereof.

[0017] In some embodiments, the power conveying unit comprises a rack with the same height as the trolley support frame, a plurality of second conveying rollers arranged in parallel on the rack, a driving power mechanism arranged on the rack and used for driving the second conveying rollers to rotate, and the rotating direction of the second conveying rollers is the same as that of the first conveying rollers.

[0018] In some embodiments, the power output unit is arranged on the rack and comprises a first commutator connected with the second conveying rollers, a power switching mechanism connected with the first commutator, and a power transmission mechanism used for pushing the power switching mechanism to move towards the power receiving unit, wherein,

[0019] The power switching mechanism comprises a first rotating shaft connected with the first commutator, and a first engaging disc connected with the first rotating shaft.

[0020] In some embodiments, the power receiving unit comprises a second engaging disc engaged with the first engaging disc, a second rotating shaft connected with the second engaging disc, a second commutator connected with the second rotating shaft, a synchronous pulley connected with the second commutator, and a synchronous belt arranged on the synchronous pulley, wherein the synchronous belt is further connected with the first conveying rollers and has the same rotating direction as the first conveying rollers.

[0021] In some embodiments, the trolley end blocking unit comprises a first support arranged between the trolley conveying unit and the power conveying unit and located at one side of the trolley support frame, a first cylinder and a ball arranged on the first support, and a rotatable blocking arm connected with the ball and vertically exceeding the trolley support frame, wherein the ball is located in the movement direction of the piston of the first cylinder,

[0022] When the first cylinder piston pushes the ball to rotate to a certain position, the rotatable blocking arm is rotated to be at least below the surface of the trolley support frame, so that the carrier is normally transported;

[0023] When the first cylinder piston is retracted, the rotatable blocking arm is reset under the action of gravity to block the carrier from being transported.

[0024] In some embodiments, the trolley locking unit comprises a second support arranged on the ground, a second cylinder arranged on the second support, a locking pin connected to the end of the second cylinder piston, a locking groove block arranged on the trolley support frame and used for the locking pin to pass through, and the locking pin abuts against the first conveying roller body to prevent it from rotating after passing through the locking groove block.

[0025] When the second cylinder pushes the locking pin to insert into the locking groove block, the locking pin blocks the rotation of the first conveying roller body.

[0026] In some embodiments, further comprising: a trolley guiding unit, a position detection and alarm unit, and a safety light curtain unit, wherein,

[0027] The trolley guiding unit is symmetrically arranged on both sides of the trolley conveying unit and is used for limiting the walking direction of the trolley conveying unit.

[0028] The position detection and alarm unit is symmetrically arranged on both sides of the up-down line trolley, and a plurality of position detection and alarm units are arranged on each side and located between the trolley conveying unit and the power mechanism, the trolley conveying unit, respectively, and are used for monitoring whether the carrier is located on the trolley conveying unit.

[0029] The safety light curtain unit is symmetrically arranged on both sides of the trolley conveying unit and is used for monitoring whether the trolley conveying unit is located in the space defined by the trolley guiding unit.

[0030] In some embodiments, the trolley guiding unit comprises a third support arranged on the ground and a plurality of guiding rollers arranged side by side on the third support.

[0031] Compared with the prior art, the present application has the following beneficial effects:

[0032] (1) The up-down line trolley with switchable power provided by the present application can realize the switch of power at any time, effectively reduces the labor intensity and quantity of personnel, improves the work efficiency and operation precision, and can be widely applied in warehouse management, logistics distribution and automatic production lines which need manual transfer of up-down line processes.

[0033] (2) the present application solves the defects of large labor intensity, large number of personnel and inaccurate operation of the existing up and down line trolley. When the carrier needs to be up and down, the power is automatically transmitted to the up and down line trolley, so that it becomes a powered conveying unit; when the carrier completes up and down, the power is automatically disconnected, becoming a free independent unit. BRIEF DESCRIPTION OF DRAWINGS

[0034] Fig. 1 It is a structural schematic diagram of the utility model.

[0035] Fig. 2 It is a structural schematic diagram of the utility model power conveying unit.

[0036] Fig. 3 It is a structural schematic diagram of the utility model power output unit.

[0037] Fig. 4 It is a structural schematic diagram of the utility model receiving unit.

[0038] Fig. 5 It is a structural schematic diagram of the utility model trolley locking unit.

[0039] Fig. 6 It is a structural schematic diagram of the utility model trolley guiding unit.

[0040] Fig. 7 It is a structural schematic diagram of the utility model trolley end stop unit.

[0041] The figure is marked as follows:

[0042] 101 is a power conveying unit, 1011 is a rack, 1012 is a second conveying roller body, 1013 is a main power mechanism,

[0043] 102 is a power output unit, 1021 is a first reversing device, 1022 is a first rotating shaft, 1023 is a power transmission mechanism, 1024 is a first meshing disc,

[0044] 103 is a power receiving unit, 1031 is a second meshing disc, 1032 is a second reversing device, 1033 is a synchronous belt, 1034 is a synchronous pulley, 1035 is a second rotating shaft,

[0045] 104 is a trolley locking unit, 1041 is a second air cylinder, 1042 is a locking pin, 1043 is a locking groove block, 1044 is a second bracket,

[0046] 105 is a trolley conveying unit, 1051 is a first conveying roller body,

[0047] 106 is a trolley guiding unit, 1061 is a third bracket, 1062 is a guiding roller,

[0048] 107 is the trolley support frame.

[0049] 108 are the wheels for walking.

[0050] 109 is the carrier blocking plate.

[0051] 110 is the arrival detection and alarm unit.

[0052] 111 is a safety light curtain unit.

[0053] 112 is the trolley end stop unit, 1121 is the rotatable stop arm, 1122 is the first cylinder, and 1123 is the first bracket. Detailed Implementation

[0054] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0055] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0056] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0057] In the following embodiments, unless otherwise specified, the functional components or structures are conventional components or structures used in the art to achieve the corresponding functions.

[0058] Example 1:

[0059] like Figs. 1-7 As shown, a switchable power trolley for transporting a carrier includes: a trolley transport unit 105, a power system, a trolley end stop unit 112, a trolley locking unit 104, a trolley guiding unit 106, a position detection and alarm unit 110, and a safety light curtain unit 111. The power system includes a power transmission unit 101, a power output unit 102, and a power receiving unit 103.

[0060] In this embodiment, power is transmitted or switched to the trolley conveying unit 105 through the power system, so that the carrier can be automatically transported from the power system to the trolley conveying unit 105 and completed on / off. This greatly reduces the labor intensity and number of personnel, improves work efficiency and operational accuracy, and can be widely used in warehouse management, logistics distribution and automated production lines that require manual transfer on / off processes.

[0061] More specifically,

[0062] The trolley conveying unit 105 receives the power transmitted by the power receiving unit 103 and is used to convey the carrier, including a trolley support frame 107, a plurality of first conveying rollers 1051 arranged in parallel on the trolley support frame 107 and connected with the power receiving unit 103, a carrier blocking plate 109 arranged at the end of the trolley support frame 107 and used to prevent the carrier from falling forward, and a walking wheel 108 arranged at the bottom of the trolley support frame 107. The carrier blocking plate 109 is provided with two, respectively symmetrically arranged at the two ends of the trolley support frame 107. The walking wheel 108 can facilitate manual pushing of the trolley conveying unit 105, and the walking wheel 108 is provided with four, respectively arranged at the four corners of the bottom of the trolley support frame 107. The walking wheel 108 mounted at the end of the trolley conveying unit 105 can be a universal wheel; the walking wheel 108 mounted at the front end of the trolley conveying unit 105 can be a fixed wheel. The walking wheel 108 preferably has a brake structure, which can increase the stability when the trolley conveying unit 105 stops.

[0063] The power conveying unit 101 is used to transmit power to the power output unit 102, including a rack 1011 which is the same height as the trolley support frame 107, a plurality of second conveying rollers 1012 arranged in parallel on the rack 1011, and a driving force mechanism 1013 arranged on the rack 1011 and used to drive the second conveying rollers 1012 to rotate. The driving force mechanism 1013 can be a conventional driving force motor, for example, and the direction of rotation of the second conveying rollers 1012 is the same as that of the first conveying rollers 1051. The power conveying unit 101 transmits power to the second conveying rollers 1012 through the driving force mechanism 1013, so that the second conveying rollers 1012 rotate, thereby driving the carrier to be transmitted to the first conveying rollers 1051 through the second conveying rollers 1012.

[0064] The power output unit 102 receives the power transmitted by the power transmission unit 101 and continues to transmit the power to the power receiving unit 103. The power output unit 102 is arranged on the frame 1011 and includes a first commutator 1021 connected with the second conveying roller body 1012, a power switching mechanism connected with the first commutator 1021, and a power transmission mechanism 1023 for pushing the power switching mechanism to move towards the power receiving unit 103. The power switching mechanism includes a first rotating shaft 1022 connected with the first commutator 1021 and a first engaging disc 1024 connected with the first rotating shaft 1022. The power transmission mechanism 1023 can be a pneumatic cylinder, and the movement direction of the pneumatic cylinder piston is towards the power switching mechanism. The first commutator 1021 of the power output unit 102 receives the power transmitted by the rotation of the second conveying roller body 1012, and then the first commutator 1021 is connected with the power switching mechanism to transmit the power. The first rotating shaft 1022 drives the first engaging disc 1024 to rotate, and under the pushing of the pneumatic cylinder piston, the power switching mechanism moves towards the power receiving unit 103 and is connected with the power receiving unit 103 to transmit the power to the power receiving unit 103. When the pneumatic cylinder piston retracts, the power transmission is cut off.

[0065] The power receiving unit 103 receives the power transmitted by the power output unit 102 and transmits the power to the trolley conveying unit 105. The power receiving unit 103 includes a second engaging disc 1031 engaged with the first engaging disc 1024, a second rotating shaft 1035 connected with the second engaging disc 1031, a second commutator 1032 connected with the second rotating shaft 1035, a synchronous pulley 1034 connected with the second commutator 1032, and a synchronous belt 1033 arranged on the synchronous pulley 1034. The synchronous belt 1033 is also connected with the first conveying roller body 1051 and rotates in the same direction as the first conveying roller body 1051. When the power is transmitted from the first engaging disc 1024 to the second engaging disc 1031 through the engagement of the second engaging disc 1031 and the first engaging disc 1024, the engaging disc as a whole starts to rotate and drives the second rotating shaft 1035 connected with the second engaging disc 1031 to rotate. The second commutator 1032 receives the power through the rotation of the second rotating shaft 1035 and transmits the power to the synchronous pulley 1034 and the synchronous belt 1033 to operate. The synchronous belt 1033 is connected with the first conveying roller body 1051, thereby transmitting the power to the first conveying roller body 1051 to start rotating. Under the action of the first commutator 1021 and the second commutator 1032, the first conveying roller body 1051 and the second conveying roller body 1012 rotate in the same direction.

[0066] The trolley end stop unit 112 is arranged between the trolley conveying unit 105 and the power system, and is used to prevent the carrier from falling due to "back sliding" when entering the trolley conveying unit 105. The trolley end stop unit 112 includes a first support 1123 arranged between the trolley support frame 107 and the rack 1011 and located on one side of the trolley support frame 107, a first air cylinder 1122 arranged on the first support 1123, a ball, a rotatable blocking arm 1121 connected with the ball and vertically exceeding the upper surface of the trolley support frame 107, and the ball is located in the movement direction of the piston of the first air cylinder 1122. When the trolley conveying unit 105 is completely docked with the power conveying unit 101, the piston of the first air cylinder 1122 pushes the ball to rotate to a certain position, and the rotatable blocking arm 1121 rotates to be at least lower than the upper surface of the trolley support frame 107, so that the carrier can be normally conveyed from the second conveying roller body 1012 to the first conveying roller body 1051. When the carrier completely enters or leaves the trolley conveying unit 105, the piston of the first air cylinder 1122 retracts to reset, and the rotatable blocking arm 1121 resets under the action of gravity. Since the height of the rotatable blocking arm 1121 is higher than that of the trolley support frame 107, the conveying of the carrier is blocked, and the safety protection of the carrier during conveying is realized.

[0067] The trolley locking unit 104 is used to pause the operation of the trolley conveying unit 105, and can pause the trolley conveying unit 105 in time when displacement deviation occurs in the trolley conveying unit 105. The trolley locking unit 104 is symmetrically arranged on both sides of the trolley conveying unit 105, and includes a second support 1044 arranged on the ground, a second air cylinder 1041 arranged on the second support 1044, a locking pin 1042 connected with the end of the piston of the second air cylinder 1042, a locking groove block 1043 arranged on the trolley support frame 107 and used for the locking pin 1042 to pass through, and the locking pin 1042 abuts against the first conveying roller body 1051 to prevent the rotation of the first conveying roller body 1051 after passing through the locking groove block 1043. When the carrier is in and out of line, the piston of the second air cylinder 1042 pushes the locking pin 1042 to insert into the locking groove block 1043, the locking pin 1042 blocks the rotation of the first conveying roller body 1051, and the locking action is completed. When the carrier is in and out of line is completed, the second air cylinder 1042 resets, the locking pin 1042 leaves the locking groove block 1043, and the first conveying roller body 1051 resumes rotation.

[0068] The trolley guide unit 106 is symmetrically arranged on both sides of the trolley conveying unit 105 and is used to limit the walking direction of the trolley conveying unit 105. The trolley guide unit 106 includes a third support 1061 arranged on the ground and a plurality of guide rollers 1062 arranged side by side on the third support 1061. When the trolley conveying unit 105 deviates during walking, the guide rollers 1062 slide in contact with the frame of the trolley support frame 107, which can prevent collision damage on the one hand, and can also make the trolley conveying unit 105 slide to a limited position on the other hand.

[0069] Three position detection and alarm units 110 are symmetrically arranged on both sides of the trolleys, one between the trolley conveying unit 105 and the power mechanism, and two at the trolley conveying unit 105 itself. These units monitor whether the transport vehicle has reached or left the trolley conveying unit 105. Each position detection and alarm unit 110 may include a connected displacement sensor and an alarm. An alarm is triggered based on the signal received from the displacement sensor. The position detection and alarm units 110 located at the trolley conveying unit 105 can be used together; when the displacement sensor detects that the transport vehicle has entered or left the trolley conveying unit 105, the alarm sounds. The position detection and alarm units 110 located between the trolley conveying unit 105 and the power mechanism detect when the displacement sensor detects that the transport vehicle is not at the designated handover position; in this case, the alarm sounds.

[0070] Safety light curtain units 111 are symmetrically arranged on both sides of the trolley conveyor unit 105 to monitor whether the trolley conveyor unit 105 is within the space defined by the trolley guide unit 106. As an operational safety protection device, the safety light curtain unit 111 detects and monitors whether the trolley conveyor unit 105 is in position within the space defined by the trolley guide unit 106 by emitting and receiving light beams. Subsequent operations can only continue when the light beam of the safety light curtain is blocked.

[0071] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A switchable power trolley for transporting a carrier, characterized in that, include: A trolley conveying unit (105) for powering the carrier; A power system for providing power to the trolley transport unit (105); A trolley end stop unit (112) is provided between the trolley conveying unit (105) and the power system to prevent the carrier from "slipping backward" and falling off after entering the trolley conveying unit (105); A trolley locking unit (104) for pausing the operation of the trolley conveying unit (105); in, The power system includes a power receiving unit (103) connected to the trolley conveying unit (105) and used to transmit power to the trolley conveying unit (105); A power output unit (102) connected to the power receiving unit (103) and used to transmit power to the power receiving unit (103); A power delivery unit (101) is connected to the power output unit (102) and is used to transmit power to the power output unit (102).

2. The switchable power loading / unloading trolley according to claim 1, characterized in that, The trolley conveying unit (105) includes a trolley support frame (107) and several first conveying rollers (1051) arranged in parallel on the trolley support frame (107) and connected to the power receiving unit (103).

3. The switchable power loading / unloading trolley according to claim 2, characterized in that, The end of the trolley support frame (107) is also provided with a carrier baffle plate (109) to prevent the carrier from falling due to "forward delay". The bottom of the trolley support frame (107) is also provided with a traveling wheel (108).

4. The switchable power loading / unloading trolley according to claim 2, characterized in that, The power transmission unit (101) includes a frame (1011) that is level with the trolley support frame (107), a plurality of second conveying rollers (1012) arranged in parallel on the frame (1011), and a main power mechanism (1013) on the frame (1011) for actively driving the second conveying rollers (1012) to rotate. The direction of rotation of the second conveying rollers (1012) is the same as the direction of rotation of the first conveying rollers (1051).

5. The switchable power loading / unloading trolley according to claim 4, characterized in that, The power output unit (102) is mounted on the frame (1011) and includes a first commutator (1021) connected to the second conveying roller (1012), a power switching mechanism connected to the first commutator (1021), and a power transmission mechanism (1023) for pushing the power switching mechanism toward the power receiving unit (103). The power switching mechanism includes a first rotating shaft (1022) connected to the first commutator (1021) and a first engagement disc (1024) connected to the first rotating shaft (1022).

6. The switchable power loading / unloading trolley according to claim 5, characterized in that, The power receiving unit (103) includes a second meshing disc (1031) meshing with the first meshing disc (1024), a second rotating shaft (1035) connected to the second meshing disc (1031), a second commutator (1032) connected to the second rotating shaft (1035), a synchronous pulley (1034) connected to the second commutator (1032), and a synchronous belt (1033) disposed on the synchronous pulley. The synchronous belt (1033) is also connected to the first conveying roller (1051) and rotates in the same direction as the first conveying roller (1051).

7. The switchable power loading / unloading trolley according to claim 2, characterized in that, The trolley end stop unit (112) includes a first bracket (1123) located between the trolley conveying unit (105) and the power conveying unit (101) and on one side of the trolley support frame (107), a first cylinder (1122) and a ball bearing mounted on the first bracket (1123), and a rotatable blocking arm (1121) connected to the ball bearing and perpendicularly extending beyond the trolley support frame (107). The ball bearing is located in the direction of movement of the piston of the first cylinder (1122). When the piston of the first cylinder (1122) pushes the ball to rotate to a certain position, the rotatable blocking arm (1121) rotates to at least below the surface of the trolley support frame (107), so that the carrier can be transported normally; When the piston of the first cylinder (1122) retracts, the rotatable blocking arm (1121) resets under the action of gravity to block the transport of the carrier.

8. The switchable power loading / unloading trolley according to claim 2, characterized in that, The trolley locking unit (104) includes a second bracket (1044) on the ground, a second cylinder (1041) on the second bracket (1044), a locking pin (1042) connected to the piston end of the second cylinder (1041), and a locking groove block (1043) on the trolley support frame (107) for the locking pin (1042) to pass through. After the locking pin (1042) passes through the locking groove block (1043), it abuts against the first conveying roller (1051) to prevent it from rotating.

9. The switchable power loading / unloading trolley according to claim 1, characterized in that, Also includes: The vehicle guidance unit (106), the arrival detection and alarm unit (110), and the safety light curtain unit (111) are included. The trolley guide unit (106) is symmetrically arranged on both sides of the trolley conveying unit (105) and is used to limit the walking direction of the trolley conveying unit (105); The arrival detection and alarm unit (110) is symmetrically arranged on both sides of the loading and unloading trolley, with several units on each side, respectively located between the trolley conveying unit (105) and the power mechanism, and the trolley conveying unit (105), for monitoring whether the carrier is located on the trolley conveying unit (105); The safety light curtain unit (111) is symmetrically arranged on both sides of the trolley conveying unit (105) and is used to monitor whether the trolley conveying unit (105) is located in the space defined by the trolley guide unit (106).

10. The switchable power loading / unloading trolley according to claim 9, characterized in that, The trolley guiding unit (106) includes a third support (1061) on the ground and a plurality of guide rollers (1062) arranged in parallel on the third support (1061).

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