A sorting trolley tray reset device, a sorting trolley and a sorting system

Abstract

The present invention relates to the technical field of article sorting, and discloses a sorting trolley tray reset device, a sorting trolley and a sorting system. The sorting trolley tray reset device includes a first reset component and / or a second reset component, and each tray is provided with one of the first reset component and the second reset component; the first reset component can contact the lower surface of the tray so that the tray gradually rotates to the carrying state as the first reset component moves or the sorting trolley moves horizontally; the second reset component includes a reset arm connected to the tray and fixed relative to the tray, and a reset drive for driving the reset arm to rotate so that the tray rotates to the carrying state. In the present invention, the two trays of the double-door sorting trolley are reset separately to cancel the linkage reset in the prior art, simplify the structure of the sorting trolley tray reset device, have good stability, and the initial reset force of each tray is small, reducing the probability of faults occurring during tray reset.

Description

Technical Field

[0001] The present invention relates to the technical field of article sorting, and particularly to a sorting trolley tray reset device, a sorting trolley and a sorting system. Background Art

[0002] The trays of a sorting trolley usually adopt a split structure, that is, a sorting trolley includes two trays. The two trays are turned downwards to unload the articles thereon. Before loading articles next time, the two trays need to be reset to the loading state to receive articles. However, in the prior art, the two trays are mostly linked to reset the trays, that is, one of the trays is driven by a driving structure to rotate and reset, and the other tray is rotated and reset by this tray. However, the driving structure of this kind of sorting trolley is complex, the initial force for resetting is large, and it is easy to have failures.

[0003] Therefore, there is an urgent need to provide a sorting trolley tray reset device to solve the above technical problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a sorting trolley tray reset device with a simple structure to reduce the force for tray resetting.

[0005] Another purpose of the present invention is to provide a sorting trolley and a sorting system, which can simplify the structure of the sorting trolley and reduce the failure rate of the sorting trolley.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A sorting trolley tray reset device, the sorting trolley includes a frame body, and two trays arranged in a double-door manner and rotatably connected to the frame body, including a first reset component and / or a second reset component, and each tray is provided with one of the first reset component and the second reset component;

[0008] The first reset component can contact the lower surface of the tray so that the tray gradually rotates to the loading state as the first reset component moves or the sorting trolley moves horizontally;

[0009] The second reset component includes a reset arm connected to the tray and fixed relative to the tray, and a reset drive for driving the reset arm to rotate so that the tray rotates to the loading state.

[0010] As a preferred technical solution of the above sorting trolley tray reset device, the reset drive includes a downhill guide rail extending along the forward direction of the sorting trolley and capable of moving in cooperation with the reset arm, or a roller moving in cooperation with the reset arm.

[0011] As a preferred technical solution of the tray reset device of the sorting trolley, the first reset component includes an uphill guide rail extending along the advancing direction of the sorting trolley and capable of moving in cooperation with the lower surface of the tray, or rollers moving in cooperation with the lower surface of the tray.

[0012] As a preferred technical solution of the tray reset device of the sorting trolley, it further includes:

[0013] A supporting lever, rotatably connected to the vehicle frame body so that the supporting lever is in a first state or a second state. When the supporting lever is in the first state, it supports at least one of the trays so that the tray is in a carrying state. When the supporting lever is in the second state, it separates from the tray so that the tray can rotate relative to the vehicle frame body under the action of gravity;

[0014] An unlocking and resetting component, used to make the supporting lever in the second state and capable of making the supporting lever rotate relative to the vehicle frame body to the first state when the tray returns to the carrying state.

[0015] As a preferred technical solution of the tray reset device of the sorting trolley, the unlocking and resetting component includes:

[0016] A locking hook, rotatably connected to the vehicle frame body. One end of the locking hook can block the rotation of the supporting lever so that the supporting lever is in the second state. During the process of the tray rotating to the carrying state, it can contact the other end of the locking hook to push the locking hook to rotate, so that the locking hook separates from the supporting lever;

[0017] An elastic resetting member, which can make the supporting lever separated from the locking hook rotate relative to the vehicle frame body to return to the first state.

[0018] As a preferred technical solution of the tray reset device of the sorting trolley, one end of the locking hook can be hooked and connected to the supporting lever.

[0019] As a preferred technical solution of the tray reset device of the sorting trolley, a triggering portion is provided on the locking hook. The triggering portion is above the tray and can abut against the tray.

[0020] The present invention also provides a sorting trolley, including the above-mentioned tray reset device of the sorting trolley.

[0021] As a preferred technical solution of the above sorting trolley, a supporting portion extending along another tray is provided on the bottom wall of one of the trays to support another tray in the carrying state.

[0022] The present invention also provides a sorting system, including the above sorting trolley.

[0023] Advantages of the present invention: The two trays of the double-leaf sorting trolley in the present invention are reset separately, canceling the linkage reset in the prior art, simplifying the structure of the tray reset device of the sorting trolley, having good stability, quick and convenient reset, and the initial reset force of each tray is small, reducing the probability of failure of the tray reset of the sorting trolley.

[0024] The sorting trolley and sorting system provided by the present invention have a simple structure, reducing the failure rate of the sorting trolley and improving the sorting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the embodiments of the present invention and these drawings.

[0026] Figure 1 is the state of the sorting trolley provided by the embodiment of the present invention when resetting the tray Figure 1 ;

[0027] Figure 2 is the state of the sorting trolley provided by the embodiment of the present invention when resetting the tray Figure 2 ;

[0028] Figure 3 is a schematic diagram of the state of the sorting trolley with the tray in the carrying state in the embodiment of the present invention;

[0029] Figure 4 is Figure 3 a partial enlarged view of A in

[0030] Figure 5 is the process of the sorting trolley provided by the embodiment of the present invention when resetting the tray Figure 1 ;

[0031] Figure 6 is Figure 5 a side view of

[0032] Figure 7 is the process of the sorting trolley provided by the embodiment of the present invention when resetting the tray Figure 2 ;

[0033] Figure 8 is Figure 7 a side view of

[0034] Figure 9 is the process of the sorting trolley provided by the embodiment of the present invention when resetting the tray Figure 3;

[0035] Figure 10 is Figure 9 a side view of;

[0036] Figure 11 is the process of the sorting trolley provided by the embodiment of the present invention to reset the tray Figure 4 ;

[0037] Figure 12 is Figure 11 a side view of;

[0038] Figure 13 is the process of the sorting trolley provided by the embodiment of the present invention to reset the tray Figure 5 ;

[0039] Figure 14 is Figure 13 a side view of.

[0040] In the figure:

[0041] 1. Frame body;

[0042] 21. Front tray; 22. Rear tray; 23. Support part; 24. Flange;

[0043] 31. Reset arm;

[0044] 32. Reset drive; 321. Downhill guide rail; 322. Horizontal guide rail; 323. Climbing guide rail;

[0045] 33. Reset guide rail; 331. Uphill guide rail; 332. Descent guide rail;

[0046] 34. Supporting lever; 341. Hooking groove;

[0047] 35. Lock hook; 351. Hooking part; 352. Trigger part. Detailed implementation manners

[0048] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the present invention will be further described below with reference to the accompanying drawings and through specific implementation manners. It can be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Additionally, it should be noted that for the sake of description, only parts related to the present invention are shown in the drawings rather than all of them.

[0049] Embodiment 1

[0050] As Figures 1 to 4As shown in the figure, this embodiment provides a sorting trolley tray reset device, a sorting trolley, and a sorting system. The sorting system includes multiple sorting trolleys and sorting tracks. The multiple sorting trolleys are connected end to end and can move on the sorting tracks. Each sorting trolley includes a frame body 1 provided with an unloading port, and two trays arranged in a double-leaf door manner. The two trays are both rotatably connected to the frame body 1 to open or close the unloading port. When both trays are in the loading state, they can support items. When the two trays in the loading state rotate a certain angle relative to the frame body 1, the unloading port can be opened, so that the items supported by the trays fall from the current unloading port.

[0051] The sorting trolley tray reset device provided in this embodiment is used to reset the tray to rotate to the loading state after the item is unloaded, so as to facilitate continuing to carry heavy objects. In this embodiment, the two trays of each sorting trolley are distributed in the horizontal direction along the forward direction of the sorting trolley. The tray located upstream is denoted as the front tray 21, and the tray located downstream is denoted as the rear tray 22. The following takes the above-mentioned sorting trolley that continues to move on the sorting track when unloading items as an example to specifically describe the sorting trolley tray reset device.

[0052] The sorting trolley tray reset device includes a first reset component for resetting the front tray 21 and a second reset component for resetting the rear tray 22. Among them, the first reset component can contact the lower surface of the tray so that the front tray 21 gradually rotates to the loading state as the first reset component moves or the sorting trolley moves horizontally.

[0053] In this embodiment, a front main shaft is provided on the frame body 1, and the front tray 21 is rotatably sleeved outside the front main shaft. The first reset component includes an uphill guide rail 331 extending along the forward direction of the sorting trolley and capable of slidingly cooperating with the lower surface of the front tray 21. That is, along the forward direction of the sorting trolley, the position height of the uphill guide rail 331 has an upward trend. Specifically, the uphill guide rail 331 is provided under the sorting trolley. When the sorting trolley after unloading items moves on the sorting track to the position where the uphill guide rail 331 is located, the uphill guide rail 331 will act on the lower surface of the front tray 21 to push the front tray 21 to rotate relative to the frame body 1. As the sorting trolley moves forward on the sorting track, the downhill guide rail 321 will continue to push the front tray 21 to rotate so that the front tray 21 rotates to the loading state.

[0054] In other embodiments, rollers may also be provided on the uphill guide rail 331 so that the lower surface of the front tray 21 is in rolling cooperation with the uphill guide rail 221, thereby reducing the frictional force between the uphill guide rail 331 and the front tray 21 when the uphill guide rail 331 resets the front tray 21. In other embodiments, the uphill guide rail 331 may not be provided, and the rollers are directly in moving cooperation with the lower surface of the front tray 21. As the sorting trolley moves forward, the front tray 21 is reset. Preferably, the rollers are in rolling cooperation with the lower surface of the front tray 21 to reduce the frictional force between the rollers and the lower surface of the front tray 21.

[0055] The second reset component includes a reset arm 31 connected to the rear tray 22 and fixed relative to the rear tray 22, and a reset drive 32 for driving the reset arm 31 to rotate so that the tray rotates to the loading state. In this embodiment, a rear main shaft is provided on the vehicle frame body 1, and the reset arm 31 and the rear tray 22 are rotatably sleeved outside the rear main shaft. The reset arm 31 and the rear tray 22 are of an integral structure, and the reset arm 31 and the rear tray 22 can be formed into an integral structure by means such as welding, clamping, pasting, connecting with fasteners, integral injection molding or casting.

[0056] The above-mentioned reset drive 32 includes a downhill guide rail 321 extending along the forward direction of the sorting trolley and capable of slidingly cooperating with the reset arm 31. That is, along the forward direction of the sorting trolley, the position height of the downhill guide rail 321 has a decreasing trend. Specifically, the downhill guide rail 321 is provided above the vehicle frame body 1. When the sorting trolley after unloading items walks to the position where the downhill guide rail 321 is located on the sorting track, the downhill guide rail 321 will act on the reset arm 31 to push the reset arm 31 to drive the rear tray 22 to rotate relative to the vehicle frame body 1. As the sorting trolley moves forward on the sorting track, the downhill guide rail 321 will continue to push the reset arm 31 to rotate so that the rear tray 22 rotates to the loading state.

[0057] In other embodiments, rollers may also be provided on the downhill guide rail 321 so that the rear tray 22 is in rolling cooperation with the downhill guide rail 321, thereby reducing the frictional force between the downhill guide rail 321 and the reset arm 31 when the downhill guide rail 321 resets the rear tray 22. Rollers may also be provided on the reset arm 31 so that the rollers are in rolling cooperation with the downhill guide rail 321, thereby reducing the frictional force between the downhill guide rail 321 and the reset arm 31 when the downhill guide rail 321 resets the rear tray 22. In other embodiments, the downhill guide rail 321 may not be provided, and the rollers are directly in moving cooperation with the reset arm 31. As the sorting trolley moves forward, the rear tray 22 is reset. Preferably, the rollers are in rolling cooperation with the reset arm 31 to reduce the frictional force between the rollers and the reset arm 31.

[0058] Further, after the front tray 21 and the rear tray 22 are restored to the carrying state, as the sorting trolley moves forward on the sorting track, the uphill guide rail 331 will gradually disengage from the front tray 21, and the downhill guide rail 321 will gradually disengage from the rear tray 22. To ensure that after the front tray 21 is separated from the uphill guide rail 331 and the rear tray 22 is separated from the downhill guide rail 321, the front tray 21 and the rear tray 22 can continue to maintain the carrying state, the sorting trolley tray reset device provided in this embodiment further includes a supporting lever 34 and an unlocking and resetting component.

[0059] Among them, the supporting lever 34 is rotatably connected to the vehicle frame body 1 so that the supporting lever 34 is in a first state or a second state. When the supporting lever 34 is in the first state, it supports at least one tray so that the tray is in the carrying state. When the supporting lever 34 is in the second state, it separates from the tray so that the tray can rotate relative to the vehicle frame body 1 under the action of gravity.

[0060] The unlocking and resetting component is used to make the supporting lever 34 in the second state and can make the supporting lever 34 rotate relative to the vehicle frame body 1 when the tray is restored to the carrying state so that the supporting lever 34 is in the first state. Specifically, the unlocking and resetting component includes a locking hook 35 and an elastic resetting member. Among them, the locking hook 35 is rotatably connected to the vehicle frame body 1. One end of the locking hook 35 can block the rotation of the supporting lever 34 so that the supporting lever 34 is in the second state. During the process of the tray rotating to the carrying state, it can contact the other end of the locking hook 35 to push the locking hook 35 to rotate, so that the locking hook 35 separates from the supporting lever 34; the elastic resetting member can make the supporting lever 34 separated from the locking hook 35 rotate relative to the vehicle frame body 1 to return to the first state.

[0061] In this embodiment, the supporting lever 34 is rotatably arranged on the lower bottom wall of the vehicle frame body 1, and the locking hook 35 is rotatably arranged on the side of the vehicle frame body 1 facing the tray and above the front tray 21 and the rear tray 22. The above elastic resetting member is a torsion spring. In other embodiments, the above elastic resetting member can also be a tension spring. One end of the tension spring is connected to one end of the supporting lever 34, and the other end is connected to the vehicle frame body 1. When the locking hook 35 separates from the supporting lever 34, the tension spring will pull the supporting lever 34 to rotate relative to the vehicle frame body 1 so that the supporting lever 34 rotates to the first state.

[0062] Flanges 24 are provided at both ends of the front tray 21 and the rear tray 22 in the advancing direction of the sorting trolley to prevent the heavy objects supported by the front tray 21 or the rear tray 22 from slipping off the tray. During the process of the front tray 21 and the rear tray 22 gradually rotating to the carrying state, as the sorting trolley moves forward along the sorting track, the flange 24 on the front tray 21 or the rear tray 22 will first contact the locking hook 35 to push the free end of the locking hook 35 to rotate upward, so that the supporting lever 34 separates from the locking hook 35, facilitating the supporting lever 34 to return to the first state under the action of the elastic resetting member.

[0063] It should be noted that when the hook 35 is separated from the supporting lever 34, the supporting lever 34 should not affect the reset of the front tray 21 and the rear tray 22 by means of the height of the flanging 24 on the front tray 21 or the rear tray 22 or the structure of the hook 35, so as to avoid that the front tray 21 and the rear tray 22 cannot be rotated to the loading state after the supporting lever 34 returns to the first state. For example, when the front tray 21 or the rear tray 22 has already or just rotated to a position higher than the supporting lever 34, the hook 35 can be separated from the supporting lever 34 when the front tray 21 or the rear tray 22 rotates to a position higher than the supporting lever 34; it is also possible that after the hook 35 is separated from the supporting lever 34, the supporting lever 34 abuts against the side walls of the front tray 21 and the rear tray 22. Although there is friction between the supporting lever 34 and the front tray 21 and the rear tray 22 at this time, it will not affect the rotation of the front tray 21 and the rear tray 22.

[0064] The following combines Figures 5 to 14 Briefly describe the unloading process and the tray reset process of the above sorting cart tray reset device. Figures 5 to 14 In the figure, the A direction indicated by the arrow is the forward direction of the sorting cart.

[0065] When the front tray 21 and the rear tray 22 carry items, the front tray 21 and the rear tray 22 are both in the loading state, and the supporting lever 34 is in the first state under the action of the elastic resetting member to support the front tray 21 and the rear tray 22 at the same time. At this time, the supporting lever 34 is separated from the hook 35.

[0066] When the front tray 21 and the rear tray 22 unload the items carried thereon, the supporting lever 34 rotates to the second state, and the hook 35 blocks the rotation of the supporting lever 34. Without the support of the supporting lever 34, the front tray 21 and the rear tray 22 will rotate relative to the vehicle frame body 1 under the action of their own gravity and the gravity of the items to open the unloading port, so that the items fall through the unloading port.

[0067] After the unloading of the items is completed, as the sorting cart moves forward on the sorting track, the lower surface of the front tray 21 will contact the uphill guide rail 331 to make the front tray 21 rotate relative to the front main shaft, and the reset arm 31 will contact the downhill guide rail 321 to drive the rear tray 22 to rotate relative to the rear main shaft, so that the front tray 21 and the rear tray 22 gradually rotate to the loading state as the sorting cart moves forward. When the front tray 21 or the rear tray 22 is about to return to the loading state, such as when the angle between the front tray 21 or the rear tray 22 and the horizontal plane is 5°, the hook 35 will contact the front tray 21 or the rear tray 22, and the hook 35 will rotate relative to the vehicle frame body 1 under the action of the front tray 21 or the rear tray 22, so that the hook 35 is separated from the supporting lever 34, and the supporting lever 34 will rotate to the first state under the action of the elastic resetting member to support the front tray 21 and the rear tray 22 at the same time.

[0068] In this embodiment, the two trays of the double-leaf sorting cart are reset separately to cancel the linkage reset in the prior art, and no additional power is required. By using the movement of the sorting cart along the sorting track, the cooperation between the downhill guide rail 321 and the reset arm 31 is utilized to reset the rear tray 22, and the uphill guide rail 331 is slidably engaged with the lower surface of the front tray 21 to reset the front tray 21. This simplifies the structure of the tray reset device of the sorting cart, enables quick and convenient reset, has a relatively small initial reset force for each tray, and reduces the probability of faults occurring in the tray reset of the sorting cart.

[0069] Furthermore, in order to improve the stability of the front tray 21 and the rear tray 22 when supporting items, in this embodiment, a support portion 23 extending towards the side where the rear tray 22 is located is provided on the bottom wall of the front tray 21, so that when both the front tray 21 and the rear tray 22 are in the carrying state, the rear tray 22 is supported by the support portion 23. At this time, the supporting lever 34 can merely abut against the lower surface of the front tray 21, or of course, it can also abut against the lower surfaces of both the front tray 21 and the rear tray 22. In this embodiment, there are but not limited to two support portions 23 provided on the front tray 21, and the number of support portions 23 can be determined according to actual requirements. In other embodiments, supporting levers 34 corresponding to the trays can also be provided, and the corresponding trays are supported by the supporting levers 34.

[0070] It should be noted that after the support portion 23 is provided on the front tray 21, the rear tray 22 needs to be restored to the carrying state prior to the front tray 21 to avoid interference of the support portion 23 with the reset of the rear tray 22.

[0071] In other embodiments, the above-mentioned support portion 23 can also be provided on the rear tray 22, and in this case, it is required that the front tray 21 be restored to the carrying state prior to the rear tray 22.

[0072] Furthermore, one end of the locking hook 35 can be hooked and connected to the supporting lever 34. In this embodiment, a hooking portion 351 is provided at one end of the locking hook 35, and a hooking groove 341 is provided at one end of the supporting lever 34. The hooking portion 351 is hooked in the hooking groove 341 to make the supporting lever 34 in the second state.

[0073] Furthermore, a triggering portion 352 is provided on the locking hook 35. The triggering portion 352 is located above the front tray 11 and can abut against the flange 24 on the front tray 11. During the process of the front tray 21 rotating to the carrying state, the flange 24 on the front tray 21 will contact the triggering portion 352 to push the locking hook 35 to rotate, so that the locking hook 35 is disengaged from the supporting lever 34.

[0074] Further, the above-mentioned reset drive 32 further includes a horizontal guide rail 322 connected to one end of the downhill guide rail 321. The downhill guide rail 321 and the horizontal guide rail 322 are arranged in sequence along the forward direction of the sorting trolley, and the horizontal guide rail 322 is parallel to the horizontal plane. By providing the horizontal guide rail 322, a certain amount of time can be provided for the supporting lever 34 to recover from the second state to the first state.

[0075] Further, the above-mentioned reset drive 32 further includes a climbing guide rail 323 connected to the end of the horizontal guide rail 322 that is not connected to the downhill guide rail 321. The downhill guide rail 321, the horizontal guide rail 322, and the climbing guide rail 323 are arranged in sequence along the forward direction of the trolley. Along the forward direction of the sorting trolley, the position height of the climbing guide rail 323 has an increasing trend. By providing the climbing guide rail 323, after the front tray 21 and the rear tray 22 are supported by the supporting lever 34, the climbing guide rail 323 gradually separates from the reset arm 31.

[0076] Further, the above-mentioned first reset component further includes a downhill guide rail 332 connected to one end of the uphill guide rail 331. The uphill guide rail 331 and the downhill guide rail 332 are arranged in sequence along the forward direction of the sorting trolley. In this embodiment, the above-mentioned uphill guide rail 331 and the downhill guide rail 332 are integrally provided to form a reset guide rail 33. Along the forward direction of the sorting trolley, the position height of the downhill guide rail 332 gradually decreases. By providing the downhill guide rail 332, after the supporting lever 34 supports the front tray 21 and the rear tray 22, the downhill guide rail 332 gradually separates from the lower surfaces of the front tray 21 and the rear tray 22, and at the same time, it avoids the downhill guide rail 332 from interfering with the forward movement of the sorting trolley.

[0077] Embodiment Two

[0078] The difference between this embodiment and Embodiment One is that the two trays are distributed in a horizontal direction perpendicular to the forward direction of the sorting trolley, and both trays are provided with a first reset component.

[0079] Embodiment Three

[0080] The difference between this embodiment and Embodiment One is that when resetting the front tray 21 and the rear tray 22, the sorting trolley stops moving, and the reset guide rail 33 moves in the reverse direction of the forward direction of the sorting trolley to make the front tray 21 return to the loading state; the downhill guide rail 321 moves in the reverse direction of the forward direction of the sorting trolley to make the rear tray 22 return to the loading state. In other embodiments, the front tray 21 can also be restored to the loading state by the lifting of the reset guide rail 33.

[0081] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

[0082] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0083] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Claims

1. A sorting trolley tray resetting device, the sorting trolley comprising a frame body (1), and two trays arranged in a double-door manner and rotatably connected to the frame body (1), characterized in that: It includes a first reset component and / or a second reset component, and each of the trays is equipped with one of the first reset component and the second reset component; The first reset assembly is capable of contacting the lower surface of the tray so that the tray gradually rotates to a load-bearing state along with the movement of the first reset assembly or the horizontal movement of the sorting trolley; The second reset assembly includes a reset arm (31) connected to the tray and fixed relative to the tray, and a reset drive (32) driving the reset arm (31) to rotate so as to rotate the tray to a load-bearing state; Also includes: A supporting lever (34) is rotatably connected to the vehicle frame (1) so that the supporting lever (34) is in a first state or a second state. When the supporting lever (34) is in the first state, it supports at least one of the trays so that the tray is in a load-bearing state. When the supporting lever (34) is in the second state, it is separated from the tray so that the tray can rotate relative to the vehicle frame (1) under the action of gravity. An unlocking and resetting assembly is used to place the supporting lever (34) in the second state and to rotate the supporting lever (34) relative to the vehicle frame (1) to place the supporting lever (34) in the first state when the tray returns to the load-bearing state; The unlocking and resetting component comprises: A locking hook (35) is rotatably connected to the vehicle frame (1); one end of the locking hook (35) can block the support lever (34) from rotating so that the support lever (34) is in a second state; and when the tray rotates to the load-bearing state, the other end of the locking hook (35) can contact the locking hook (35) to push the locking hook (35) to rotate, so that the locking hook (35) is separated from the support lever (34); an elastic reset member capable of causing the supporting lever (34) separated from the locking hook (35) to rotate relative to the vehicle frame (1) to restore to the first state; One end of the locking hook (35) can be hooked and connected to the supporting lever (34); The locking hook (35) is provided with a trigger portion (352), and the trigger portion (352) is located above the tray and can abut against the tray.

2. The sorting trolley tray resetting device according to claim 1, characterized in that: The reset drive (32) includes a downhill guide rail (321) extending along the forward direction of the sorting trolley and capable of movably cooperating with the reset arm (31), or a roller movably cooperating with the reset arm (31).

3. The sorting trolley tray resetting device according to claim 1, characterized in that: The first reset assembly includes an uphill guide rail (331) extending along the forward direction of the sorting trolley and capable of moving in conjunction with the lower surface of the tray, or a roller that moves in conjunction with the lower surface of the tray.

4. A sorting trolley, characterized in that: It includes the sorting trolley tray resetting device according to any one of claims 1 to 3.

5. The sorting trolley according to claim 4, characterized in that: The bottom wall of one of the trays is provided with a supporting portion (23) extending along the other tray to support the other tray in a carrying state.

6. A sorting system, characterized in that: Including the sorting trolley described in claim 4 or 5.

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