Discharge system

Abstract

The application discloses a kind of unloading systems. The unloading system includes container and sling;Container includes box, bottom door, first slider, first connecting rod, second connecting rod and lock assembly;During the movement of first slider from sliding locking position to sliding unlocking position, first slider is connected to lock assembly, so that lock assembly moves from the state of being locked to the bottom door in closed position to the state of being away from the bottom door, second connecting rod moves from long connection position to short connection position, and sling is used to drive first slider to move.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of containers, in particular to a discharging system. BACKGROUND

[0002] The top of a container for transporting bulk cargo is open. The top is used to fill the container with bulk cargo. When discharging is required, the container is lifted by a lifting tool and then turned upside down so that the top is facing downwards. In this way, the bulk cargo can be discharged through the top. After discharging is completed, the container is turned upside down by the lifting tool so that the top is facing upwards and then placed back on the ground.

[0003] The above-mentioned method of discharging bulk cargo by turning upside down, the center of gravity of the container changes constantly when the cargo is pouring out, and the container is prone to imbalance and overturning. Therefore, when the cargo is pouring out, the force on the container needs to be adjusted in real time to avoid imbalance of the container, which is complicated to operate.

[0004] To this end, the present application provides a discharging system to at least partially solve the above-mentioned problems. SUMMARY

[0005] A series of simplified concepts are introduced in the summary section, which will be further described in detail in the specific embodiment section. The summary section of the present application does not mean to attempt to limit the key features and essential technical features of the claimed technical solutions, nor to attempt to determine the protection scope of the claimed technical solutions.

[0006] To at least partially solve the above-mentioned technical problems, the present application provides a discharging system, the discharging system comprising a container and a lifting tool,

[0007] The container comprises:

[0008] a box body, the bottom end of the box body having a bottom opening;

[0009] a bottom door, the bottom door being pivotally connected to the box body between an open position for opening the bottom opening and a closed position for closing the bottom opening;

[0010] a first sliding member, the first sliding member being movably connected to the box body along the height direction of the box body between a sliding locking position and a sliding unlocking position, the first sliding member being provided with an operation portion;

[0011] a first connecting rod, a first end of the first connecting rod being pivotally connected to the first sliding member;

[0012] A second connecting rod is movably connected to the first connecting rod along the length direction of the first connecting rod, and the second connecting rod is movably connected to the first connecting rod between a long connection position and a short connection position. The second connecting rod located at the long connection position is farther away from the first end of the first connecting rod than the second connecting rod located at the short connection position. The end of the second connecting rod away from the first connecting rod is pivotally connected to the bottom door.

[0013] A lock assembly is connected to the box body.

[0014] During the movement of the first sliding member from the sliding locking position to the sliding unlocking position, the first sliding member is connected to the lock assembly to move the lock assembly from the state of being locked to the bottom door located at the closed position to the state of being away from the bottom door, and the second connecting rod is moved from the long connection position to the short connection position.

[0015] The lifting appliance can be moved to the operation part of the first sliding member located at the sliding locking position and connected to the operation part to drive the first sliding member to move along the height direction of the box body.

[0016] According to the unloading system, the first sliding member, the lock assembly and the connecting rod assembly are linked, the first sliding member can be connected to the operation part of the first sliding member through the lifting appliance to drive the first sliding member to move along the height direction of the box body. During the movement of the first sliding member between the sliding locking position and the sliding unlocking position, the movement of the connecting rod assembly and the lock assembly is driven to rotate the bottom door between the open position and the closed position. In this way, the bottom door of the container can be opened by operating the first sliding member through the lifting appliance. The operation of opening the bottom door is simple, and it is not necessary to overturn the box body through the lifting appliance to unload the bulk cargo in the box body. The operation of unloading the bulk cargo in the box body is simple and safe.

[0017] Optionally, one of the first connecting rod and the second connecting rod is provided with a long hole, and the first connecting rod and the second connecting rod are connected through the long hole to enable the second connecting rod to be movable between the long connection position and the short connection position.

[0018] Optionally, the bottom door has a hooking part, and the lock assembly includes a lock hook which is pivotally connected to the box body between a hooking position of being hooked to the hooking part and an unhooking position of being away from the hooking part to move the lock assembly from the state of being locked to the bottom door located at the closed position to the state of being away from the bottom door.

[0019] Optionally, the lock hook includes a hook body, a hook head part, a first pivot connection part and a second pivot connection part. The hook head part, the first pivot connection part and the second pivot connection part are located on the same side of the hook body and are connected to the hook body. The hook head part, the first pivot connection part and the second pivot connection part are spaced apart along the height direction of the box body. The first pivot connection part is pivotally connected to the box body, and the second pivot connection part is used to be connected to the first sliding member. The hook head part is used to be hooked to the hooking part.

[0020] Optionally, the lower end of the hook has a hook guide slope, the hook guide slope is inclined to the height direction of the hook,

[0021] During the movement of the first sliding member from the sliding unlocking position to the sliding locking position, the hooking portion abuts against the hook guide slope to slide along the hook guide slope, so that the hook is hooked to the hooking portion.

[0022] Optionally, the container further comprises a pivot member, one end of the pivot member is pivotally connected to the hook, and the other end of the pivot member is used for being pivotally connected to the first sliding member.

[0023] Optionally, the pivot member is an elastic member.

[0024] Optionally, the container further comprises a connecting member, the connecting member is located below the first sliding member and is connected to the first sliding member, the first end of the first connecting rod is pivotally connected to the connecting member, or

[0025] The container further comprises a second sliding member, the second sliding member is located below the first sliding member, the second sliding member is movably connected to the box body in the height direction of the box body, the hook is pivotally connected to the second sliding member, and the second sliding member is used for being connected to the first sliding member.

[0026] Optionally, the operation portion is configured as an operation hole.

[0027] Optionally, the axis direction of the operation hole is parallel to the horizontal direction.

[0028] Optionally, the container further comprises a lock member, the lock member is movably connected to the box body, and in the case that the first sliding member is in the sliding locking position, the lock member can extend into the operation hole.

[0029] Optionally, the container further comprises a lock member elastic member, the lock member elastic member is connected to the lock member to apply an action force to the lock member to make the lock member enter the operation hole.

[0030] Optionally, the lock member has a lock member guide slope, the upper end of the lock member guide slope is farther away from the center of the box body than the lower end.

[0031] Optionally, the first sliding member comprises a sliding body and a limiting portion, the limiting portion is rotatably connected to the sliding body, the box body is provided with a blocking portion, and in the case that the first sliding member moves to the sliding locking position, the limiting portion can be rotated to a blocking position in which part of the limiting portion is located above the blocking portion to block the movement of the first sliding member towards the sliding unlocking position.

[0032] Optionally, the lifting appliance comprises:

[0033] a lifting appliance body;

[0034] A first driving assembly, a head of the first driving assembly is movably arranged along a length direction of the first driving assembly, the first driving assembly is pivotally connected to the spreader body between a disengaged position and an engaged position, the head of the first driving assembly is disengaged from the operating part when the first driving assembly is in the disengaged position, the head of the first driving assembly is capable of being connected to the operating part when the first driving assembly is in the engaged position, and the length direction of the first driving assembly is parallel to the height direction of the container.

[0035] Optionally, the spreader further comprises:

[0036] A second driving assembly, the second driving assembly is connected to the spreader body, a head of the second driving assembly is movably arranged, and the head of the second driving assembly is pivotally connected to the first driving assembly to drive the first driving assembly to rotate between the disengaged position and the engaged position. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to make the advantages of the present application more easily understood, the present application briefly described above will be described in more detail by referring to the specific embodiments shown in the drawings. It can be understood that these drawings only depict typical embodiments of the present application and therefore should not be considered as limiting the scope of protection, the present application is described and explained in additional characteristics and details by means of the drawings.

[0038] Figure 1 A side view schematic diagram of the container of the unloading system according to the first preferred embodiment of the present application, wherein the first sliding member is in the sliding locking position, the bottom door is in the closed position, the locking hook is in the hooked position, and the second connecting rod is in the long connecting position;

[0039] Figure 2 A side view schematic diagram of the container of the unloading system according to the first preferred embodiment of the present application, wherein the first sliding member is in the sliding locking position, the bottom door is in the closed position, the locking hook is in the hooked position, and the second connecting rod is in the long connecting position; Figure 1

[0040] Figure 3 A side view schematic diagram of the container of the unloading system according to the first preferred embodiment of the present application, wherein the first sliding member is in the sliding locking position, the bottom door is in the closed position, the locking hook is in the hooked position, and the second connecting rod is in the long connecting position; Figure 1

[0041] A side view schematic diagram of the container of the unloading system according to the first preferred embodiment of the present application, wherein the first sliding member is in the sliding locking position, the bottom door is in the closed position, the locking hook is in the hooked position, and the second connecting rod is in the long connecting position; Figure 4 Figure 1 A side view schematic diagram of the container of the unloading system according to the first preferred embodiment of the present application, wherein the first sliding member is in the sliding locking position, the bottom door is in the closed position, the locking hook is in the hooked position, and the second connecting rod is in the long connecting position;

[0042] Figure 5 A side view schematic diagram of the container of the unloading system according to the first preferred embodiment of the present application, wherein the first sliding member is in the sliding locking position, the bottom door is in the closed position, the locking hook is in the hooked position, and the second connecting rod is in the long connecting position; Figure 1 ​A side view of a container for an unloading system, wherein the first sliding member is located between the sliding unlock position and the sliding lock position, the bottom door is located between the open position and the closed position, the lock hook is located between the unhooking position and the hooking position, and the second connecting rod is located in the long connection position;

[0043] Figure 6 for Figure 1 A partial schematic diagram of the main view of the container and spreader connection of the unloading system;

[0044] Figure 7 for Figure 1 A partial schematic diagram of the sectional view of the main view of the container and spreader connection of the unloading system;

[0045] Figure 8 This is a side view of a container of an unloading system according to a second preferred embodiment of the present application, wherein the first sliding member is in the sliding unlock position, the bottom door is in the open position, the lock hook is in the unhooked position, and the second connecting rod is in the long connection position.

[0046] Figure 9 This is a side view of a container of an unloading system according to a third preferred embodiment of the present application, wherein the first sliding member is in a sliding locked position, the bottom door is in a closed position, the locking hook is in a hooked position, and the second connecting rod is in a long connected position.

[0047] Figure 10 This is a side view of a container according to a fourth preferred embodiment of the unloading system of this application, wherein the first sliding member is in a sliding locked position, the bottom door is in a closed position, the locking hook is in a hooked position, the second connecting rod is in a long connected position, and the limiting part is in a movable position; and

[0048] Figure 11 for Figure 10 A side view of the container of the unloading system, wherein the first sliding member is in the sliding locked position, the bottom door is in the closed position, the locking hook is in the hooked position, the second connecting rod is in the long connecting position, and the limiting part is in the blocking position.

[0049] Explanation of reference numerals in the attached figures

[0050] 110: Box body; 111: Bottom opening

[0051] 120: Bottom door; 121: Hook connection part

[0052] 130: First sliding member; 131: Operating part

[0053] 140: Linkage assembly; 141: First connecting rod

[0054] 142: Second connecting rod; 143: Long hole

[0055] 144: adjusting assembly 150: hook

[0056] 151: hook body 152: hook head

[0057] 153: first pivot part 154: second pivot part

[0058] 155: hook guide slope 160: pivot part

[0059] 163: first guide rail 164: connecting part

[0060] 165: lock part 166: lock part elastic part

[0061] 167: lock part guide slope 168: sealing part

[0062] 169: adjusting limiting assembly 170: sling body

[0063] 171: first driving assembly 172: second driving assembly

[0064] 190: second sliding part 230: first sliding part

[0065] 261: flexible part 262: hook elastic part

[0066] 264: connecting part 265: second sliding part

[0067] 330: first sliding part 371: gear

[0068] 372: rack 373: first driving wheel

[0069] 374: second driving wheel 375: chain

[0070] 376: manual part 412: blocking part

[0071] 430: first sliding part 431: sliding body

[0072] 432: limiting part DETAILED DESCRIPTION

[0073] In the following description, numerous specific details are given to provide a thorough understanding of the application. However, it will be apparent that the application can be practiced without one or more of the specific details. In other instances, well-known techniques are not described in detail in order to avoid obscuring the application.

[0074] The preferred embodiments of the present application will be described herein below with reference to the drawings. It is to be noted that the terms "upper", "lower", and similar expressions used herein are for the purpose of illustration only and are not limiting.

[0075] In this document, ordinal numbers such as "first" and "second" cited in the present application are merely identifiers and have no other meaning, such as a particular order, etc.

[0076] For a thorough understanding of the present application, reference will be made to the following detailed description. It is apparent that the implementation of the present application can take many forms other than those explicitly described herein. The preferred embodiment of the present application is described in detail below with reference to the following drawings.

[0077] First Embodiment

[0078] The present application provides a discharge system. The discharge system includes a container and a spreader. The container can be used to transport bulk cargo. The container has a bottom opening 111 for discharging the bulk cargo.

[0079] Please refer to Figures 1 to 7 The container includes a box body 110. The box body 110 is generally cuboid in structure. The top end of the box body 110 has a top opening. The bulk cargo can be loaded into the box body 110 through the top opening. The container further includes a top cover. The top cover is removably connected to the top end of the box body 110 for opening or closing the top opening. The end walls and the side walls of the box body 110 are not provided with doors. The corners of the box body 110 are provided with reinforcing assemblies (not shown) connecting the end walls and the side walls to reinforce the connection strength of the end walls and the side walls.

[0080] It can be understood that in an embodiment not shown, the container can not be provided with a top cover. At this time, the container includes a tarpaulin. The tarpaulin is used to cover the top opening.

[0081] As shown in Figures 1 to 5 The bottom end of the box body 110 is provided with a bottom opening 111. The box body 110 further includes a bottom door 120. One end of the bottom door 120 is pivotally connected to the end of the bottom end of the box body 110 along the width direction of the box body 110. In this way, the bottom door 120 can rotate between an open position for opening the bottom opening 111 and a closed position for closing the bottom opening 111. When the bottom door 120 is in the open position, the bulk cargo in the box body 110 can be discharged through the bottom opening 111. The end of the bottom door 120 along the length direction of the box body 110 is provided with a hooking portion 121.

[0082] It can be understood that in an embodiment not shown, the bottom door can also be pivotally connected to the substantially middle position of the bottom end of the box body along the width direction of the box body.

[0083] The container further comprises a first slider 130. The first slider 130 is connected to an end of the box body 110 along a length direction of the box body 110. The first slider 130 is movably arranged along a height direction of the box body 110. In this way, the first slider 130 is movable between a sliding locking position and a sliding unlocking position along the height direction of the box body 110.

[0084] The container further comprises a connecting piece 164. The connecting piece 164 can be a rod. The connecting piece 164 is located below the first slider 130 and is connected to the first slider 130. The container further comprises a linkage assembly 140. The linkage assembly 140 comprises a first connecting rod 141 and a second connecting rod 142. The first connecting rod 141 and the second connecting rod 142 are both inclined to the height direction of the box body 110. A first end of the first connecting rod 141 is pivotally connected to the connecting piece 164, and thus to the first slider 130 through the connecting piece 164. A first end of the second connecting rod 142 is connected to the first connecting rod 141. The second connecting rod 142 is movable relative to the first connecting rod 141 between a short connecting position and a long connecting position along a length direction of the first connecting rod 141. In this way, the structure of the box body 110 is simple.

[0085] When the second connecting rod 142 is located at the short connecting position, the size of the linkage assembly 140 along the length direction of the first connecting rod 141 is a short connecting size. When the second connecting rod 142 is located at the long connecting position, the size of the linkage assembly 140 along the length direction of the first connecting rod 141 is a long connecting size. The short connecting size is smaller than the long connecting size. That is, the first end of the second connecting rod 142 is closer to the first end of the first connecting rod 141 when the second connecting rod 142 is located at the short connecting position than when the second connecting rod 142 is located at the long connecting position. When the second connecting rod 142 is located at the long connecting position, the first end of the second connecting rod 142 is located at an end of the long hole 143 away from the first end of the first connecting rod 141. The second end of the second connecting rod 142 is pivotally connected to the bottom door 120 through a later-described adjusting assembly 144.

[0086] Please refer to Figures 1 to 5 , the container further comprises a lock assembly. The lock assembly is connected to the box body 110. The state of the lock assembly comprises a first state and a second state. The lock assembly is movable between the first state and the second state. When the bottom door 120 is located at the closed position, the lock assembly can be moved to the first state to lock the bottom door 120. When the bottom door 120 is located at the closed position, the lock assembly can be moved to the second state to release the lock of the bottom door 120. At this time, the bottom door 120 can be rotated to the open position.

[0087] Specifically, the lock assembly includes a lock hook 150. The lock hook 150 is pivotally connected to the box body 110. In this way, the lock hook 150 can rotate between a hooking position and an unhooking position. When the bottom door 120 is in the closed position, the lock hook 150 in the hooking position can be hooked to the hooking portion 121, thereby locking the bottom door 120 in the closed position (at this time, the lock assembly is in a first state). When the lock hook 150 is in the unhooking position, the lock hook 150 is away from the hooking portion 121 (at this time, the lock assembly is in a second state). At this time, the bottom door 120 can be rotated.

[0088] The connecting piece 164 is pivotally connected to the lock hook 150. In this way, the first sliding piece 130 moving along the height direction of the box body 110 can drive the lock hook 150 to rotate via the connecting piece 164. In this way, the first sliding piece 130, the lock hook 150 and the linkage assembly 140 are linked.

[0089] Specifically, as shown in Figure 1 , when the first sliding piece 130 is in the sliding locking position, the bottom door 120 is in the closed position, the second connecting rod 142 is in the long connecting position, and the lock hook 150 is in the hooking position. As shown in Figure 1 and Figure 2 , if it is necessary to unload the bulk cargo in the box body 110, the first sliding piece 130 is moved downward from the sliding locking position to the sliding unlocking position. During the process that the first sliding piece 130 is moved downward from the sliding locking position to the sliding unlocking position, the first sliding piece 130 drives the first connecting rod 141 to move relative to the second connecting rod 142, so that the second connecting rod 142 moves relative to the first connecting rod 141 towards the short connecting position. During the process that the first sliding piece 130 is moved downward from the sliding locking position to the sliding unlocking position, the first sliding piece 130 drives the lock hook 150 to rotate from the hooking position towards the unhooking position.

[0090] As shown in Figure 2 and Figure 3 , when the first sliding piece 130 is in the sliding unlocking position, the lock hook 150 is in the unhooking position to release the locking of the bottom door 120. When the first sliding piece 130 is in the sliding unlocking position, the second connecting rod 142 is in the short connecting position. At this time, the bottom door 120 is automatically flipped downward under the action of gravity and the cargo in the box body 110, thereby rotating from the closed position to the open position. During the process that the bottom door 120 is flipped, the second connecting rod 142 moves relative to the first connecting rod 141, so as to move from the short connecting position to the long connecting position.

[0091] As shown in Figure 1 , Figure 4 and Figure 5As shown, after the bulk cargo in the box 110 is unloaded, if it is needed to close the bottom opening 111 by the bottom door 120, the first sliding member 130 is moved upward from the sliding unlocking position to the sliding locking position. During the process of moving the first sliding member 130 from the sliding unlocking position to the sliding locking position, the first sliding member 130 drives the hook 150 to rotate from the unhooking position to the hooking position through the connecting member 164, and drives the bottom door 120 to rotate from the opening position to the closing position through the linkage assembly 140. As shown, Figure 1 As shown, when the bottom door 120 rotates to the closing position, the hook 150 rotating to the hooking position is hooked to the hooking portion 121 of the bottom door 120.

[0092] Preferably, as shown in Figures 1 to 5 , the first connecting rod 141 is provided with a long hole 143. The long axis of the long hole 143 is parallel to the length direction of the first connecting rod 141. The first end of the second connecting rod 142 is connected to the first connecting rod 141 through the long hole 143. In this way, the first end of the second connecting rod 142 can move in the long hole 143 along the long axis direction of the long hole 143, so that the second connecting rod 142 can move between the long connection position and the short connection position. Thus, the linkage assembly 140 has a simple structure.

[0093] It can be understood that in an embodiment not shown, the long hole can also be provided on the second connecting rod. At this time, the second end of the first connecting rod is connected to the second connecting rod through the long hole.

[0094] It can be understood that in an embodiment not shown, the linkage assembly can also be constructed as a telescopic sleeve structure in which the first connecting rod is sleeved on the second connecting rod.

[0095] Preferably, as shown in Figures 1 to 5 , the hook 150 includes a hook body 151, a hook head portion 152, a first pivot connection portion 153, and a second pivot connection portion 154. The hook head portion 152, the first pivot connection portion 153, and the second pivot connection portion 154 are all located on the same side of the hook body 151. The hook head portion 152, the first pivot connection portion 153, and the second pivot connection portion 154 are all connected to the hook body 151. In the height direction of the box 110, the hook head portion 152, the first pivot connection portion 153, and the second pivot connection portion 154 are arranged at intervals. The first pivot connection portion 153 is pivotally connected to the box 110, the second pivot connection portion 154 is connected to the first sliding member 130 through the connecting member 164, and the hook head portion 152 is used for hooking to the hooking portion 121. In this way, the hook 150 has a simple structure.

[0096] The lower end of the hook head 152 has a hook guide slope 155. The hook guide slope 155 is inclined to the height direction of the hook 150. When the hook 150 is hooked to the hooking portion 121, the height direction of the hook 150 is substantially parallel to the height direction of the box body 110. During the movement of the first sliding member 130 from the sliding unlocking position to the sliding locking position, the hooking portion 121 abuts to the hook guide slope 155 to slide along the hook guide slope 155, so that the hook 150 is hooked to the hooking portion 121. Thus, the hook head 152 can be more conveniently hooked to the hooking portion 121.

[0097] Further preferably, the hook 150 is configured as a substantially F-shaped structure. Thus, the structure of the hook 150 is simpler.

[0098] As shown in Figures 1 to 5 , the container further comprises a pivot member 160. One end of the pivot member 160 is pivotally connected to the second pivot portion 154 of the hook 150. The other end of the pivot member 160 is pivotally connected to a connecting member 164, and further connected to the first sliding member 130. Thus, the first sliding member 130 needs to move downward a longer distance to enable the hook 150 at the hooking position to rotate to the unhooking position. In this way, the bottom door 120 can be opened to a larger angle.

[0099] Preferably, the pivot member 160 is a resilient member. In this way, the pivot member 160 can be bent and restored after being bent. For example, the pivot member 160 can be a cylindrical spring. Thus, when the hooking portion 121 and the hook 150 interfere to prevent the bottom door from being normally closed, the pivot member 160 can be bent to enable the hook 150 to be hooked to the hooking portion 121. In addition, the setting of the pivot member 160 as a resilient member enables the first sliding member 130 to continue to move downward a longer distance when the hook 150 rotates to the unhooking position. In this way, the bottom door 120 can be opened to a larger angle.

[0100] It can be understood that, in an embodiment not shown, a hook driving assembly can also be provided for driving the rotation of the hook. At this time, the hook and the linkage assembly are not linked.

[0101] Preferably, as shown in Figures 1 to 5 , the container further comprises a first guide rail 163. The length direction of the first guide rail 163 extends along the height direction of the box body 110. The first guide rail 163 is connected to the box body 110. The first sliding member 130 is connected to the first guide rail 163. The first sliding member 130 and the first guide rail 163 cooperate to guide the movement of the first sliding member 130 along the height direction of the box body 110. Thus, the movement of the first sliding member 130 along the height direction of the box body 110 is more stable.

[0102] Preferably, the container further comprises a second sliding member 190 and a second guide rail. The second sliding member 190 is located below the first sliding member 130. The second sliding member 190 is movably connected to the box body 110 along the height direction of the box body 110. The length direction of the second guide rail extends along the height direction of the box body. The second sliding member 190 is connected to the second guide rail. The second sliding member 190 and the second guide rail cooperate to guide the movement of the second sliding member 190 along the height direction of the box body. The connecting member 164 is connected to the second sliding member 190. The second sliding member 190 is pivotally connected to the pivot member 160. In this way, when the first sliding member 130 moves along the height direction of the box body 110, the first sliding member 130 drives the lock hook 150 to rotate through the connecting member 164, the second sliding member 190 and the pivot member 160. Thus, the structure of the box body 110 is simple.

[0103] Further preferably, the cross section of the first guide rail 163 (the cross section is perpendicular to the height direction of the box body 110) is in the shape of a T structure. In this way, the selection of the first guide rail 163 is facilitated. It can be understood that in an embodiment not shown, the first guide rail can be a planar guide rail.

[0104] Preferably, referring to Figures 1 to 5 The connecting rod assembly 140 further comprises an adjusting assembly 144. The length of the adjusting assembly 144 is adjustable. The second end of the second connecting rod 142 is connected to one end of the adjusting assembly 144. The other end of the adjusting assembly 144 is pivotally connected to the bottom door 120. The adjusting assembly 144 can be an adjusting rod in the prior art, which will not be described here. In this way, the length of the adjusting assembly 144 can be adjusted as needed, and thus the length of the connecting rod assembly 140 is adjusted, thereby increasing the angle at which the bottom door 120 can be opened.

[0105] It can be understood that in an embodiment not shown, the lengths of the first connecting rod and the second connecting rod are adjustable. In this way, the lengths of the first connecting rod and the second connecting rod can be adjusted as needed, and thus the angle at which the bottom door can be opened is adjusted.

[0106] Preferably, the container further comprises a buffer assembly (not shown). The buffer assembly can be a tension spring, a compression spring or an air spring. The buffer assembly is connected to one of the bottom door 120 and the box body 110. When the bottom door 120 rotates, the buffer assembly can slow down the rotation speed of the bottom door 120.

[0107] Preferably, the bottom door 120 is two. The two bottom doors 120 constitute a double-leaf door mode. The lock hook 150 and the connecting rod assembly 140 are both two. The two lock hooks 150 are arranged one by one corresponding to the two bottom doors 120. The two connecting rod assemblies 140 are arranged one by one corresponding to the two bottom doors 120. The bottom door 120 is connected to the connecting rod assembly 140 and the lock hook 150 corresponding thereto.

[0108] Preferably, the first sliding member 130, the connecting member 164, the connecting rod assembly 140, the pivot member 160, the lock hook 150, the later-mentioned lock member 165 and the later-mentioned lock member elastic member 166 do not protrude the outer contour of the container body 110. Thus, the transportation of the container is facilitated.

[0109] Preferably, the container further comprises a sealing member 168. The sealing member 168 can be a rubber sealing strip. The sealing member 168 is connected to one of the container body 110 and the bottom door 120. When the bottom door 120 is in the closed position, the bottom door 120 presses the sealing member 168 against the container body 110 to seal the gap between the bottom door 120 and the container body 110.

[0110] Preferably, please continue to refer to Figures 1 to 5 , the container further comprises an adjusting limiting assembly 169. The adjusting limiting assembly 169 is connected to the chassis of the container body 110. When the bottom door 120 is in the closed position, the adjusting limiting assembly 169 can act on the bottom door 120 to press the bottom door 120 against the container body 110. Specifically, the adjusting limiting assembly 169 comprises a pressing member and a bolt. The bolt is arranged in the pressing member. The bolt is threadedly connected to the chassis of the container body 110. When the bottom door 120 is in the closed position, the pressing member can be located below the free end of the bottom door 120. At this time, the bolt is tightened, so that the pressing member presses the free end of the bottom door 120 against the chassis. Thus, the bottom door 120 in the closed position can be pressed against the chassis of the container body 110.

[0111] It can be understood that, in an embodiment not shown, the adjusting limiting assembly comprises a latch. The free end of the bottom door can be provided with a first latch hole. The chassis is provided with a second latch hole corresponding to the first latch hole. When the free end of the bottom door is pressed against the chassis, the first latch hole is located at the second latch hole. At this time, the latch can be arranged in the first latch hole and the second latch hole. In this way, the free end of the bottom door is always pressed against the chassis.

[0112] Preferably, the container further comprises a floor mopping protection portion (not shown). The floor mopping protection portion is arranged at the free end of the bottom door 120. When the bottom door 120 is in the open position, the floor mopping protection portion is located above the lower surface of the chassis or flush with the lower surface of the chassis. Thus, the floor mopping protection portion can increase the strength of the bottom door 120 and prevent the deformation of the bottom door 120. In addition, the floor mopping protection portion can prevent the bottom door 120 from being dragged, thereby protecting the bottom door 120.

[0113] Please refer to Figures 1 to 7 , the first sliding member 130 is provided with an operating portion 131 for connecting with the lifting appliance. As Figure 6 and Figure 7As shown, the spreader includes a spreader body 170. The spreader body 170 can be substantially the same as the body of a conventional spreader used for lifting containers. Details are not repeated here. The spreader also includes a drive assembly. The drive assembly includes a first drive assembly 171 and a second drive assembly 172.

[0114] The first drive assembly 171 can be a drive cylinder. The cylinder body of the first drive assembly 171 is pivotally connected to one end of the spreader body 170 along the length direction of the spreader. It is noted that when the spreader is used to lift a container, the length direction of the spreader is parallel to the length direction of the container, the width direction of the spreader is parallel to the width direction of the container, and the height direction of the spreader is parallel to the height direction of the container.

[0115] The head of the first drive assembly 171 is provided at the free end of the piston shaft of the first drive assembly 171. In this way, the head of the first drive assembly 171 is movably provided along the length direction of the first drive assembly 171.

[0116] The second drive assembly 172 can be a drive cylinder. The cylinder body of the second drive assembly 172 is connected to one end of the spreader body 170 along the length direction of the spreader. The second drive assembly 172 is located above the spreader body 170. The length direction of the second drive assembly 172 is parallel to the length direction of the spreader.

[0117] It is appreciated that in an embodiment not shown, the second drive assembly can also be a screw-nut structure.

[0118] Please continue to refer to Figure 6 and Figure 7 The head of the second drive assembly 172 is provided at the free end of the piston shaft of the second drive assembly 172. In this way, the head of the second drive assembly 172 is movably provided along the length direction of the second drive assembly 172. The head of the second drive assembly 172 is pivotally connected to the cylinder body of the first drive assembly 171. Along the length direction of the first drive assembly 171, there is a gap between the head of the second drive assembly 172 and the pivot connection position of the first drive assembly 171 and the spreader body 170.

[0119] The second drive assembly 172 can drive the first drive assembly 171 to move between a disengaged position (shown by the solid line in Figure 6 and Figure 7 ) and an engaged position (shown by the dashed line in Figure 6 and Figure 7The first driving assembly 171 is located at the connection position, the head of the first driving assembly 171 can be connected to the operation part 131 of the first sliding member 130. When the first driving assembly 171 is located at the connection position, the length direction of the first driving assembly 171 is parallel to the height direction of the box body 110. In this way, the first driving assembly 171 can be used to drive the first sliding member 130 to move along the height direction of the box body 110.

[0120] As shown in FIG. 1, the container for transporting bulk cargo is moved to the lifting tool. At this time, the first sliding member 130 is located at the sliding locking position, the bottom door 120 is located at the closed position, and the locking hook 150 is located at the hooking position. The lifting tool can be connected to the upper end of the box body 110. At this time, the second driving assembly 172 drives the first driving assembly 171 to rotate to the connection position, so that the head of the first driving assembly 171 moves to the operation part 131 of the first sliding member 130, and then connects the operation part 131. In this way, the first driving assembly 171 can drive the first sliding member 130 to move along the height direction of the box body 110, so that the locking hook 150 rotates to the unhooking position, and then the bottom door 120 can be automatically opened. Figure 6 Figure 7 As shown in FIG. 1, the container for transporting bulk cargo is moved to the lifting tool. At this time, the first sliding member 130 is located at the sliding locking position, the bottom door 120 is located at the closed position, and the locking hook 150 is located at the hooking position. The lifting tool can be connected to the upper end of the box body 110. At this time, the second driving assembly 172 drives the first driving assembly 171 to rotate to the connection position, so that the head of the first driving assembly 171 moves to the operation part 131 of the first sliding member 130, and then connects the operation part 131. In this way, the first driving assembly 171 can drive the first sliding member 130 to move along the height direction of the box body 110, so that the locking hook 150 rotates to the unhooking position, and then the bottom door 120 can be automatically opened.

[0121] In the embodiment, the first sliding member 130, the lock assembly and the connecting rod assembly 140 are linked, can be connected to the operation part 131 of the first sliding member 130 through the lifting tool, and then drive the first sliding member 130 to move along the height direction of the box body 110. In the process of moving the first sliding member 130 between the sliding locking position and the sliding unlocking position, the movement of the connecting rod assembly 140 and the lock assembly is driven, and then the bottom door 120 is rotated between the opening position and the closed position. In this way, the bottom door 120 of the container can be opened by operating the first sliding member 130 through the lifting tool. The operation of opening the bottom door 120 is simple, and the bulk cargo in the box body 110 does not need to be unloaded by turning over the box body 110 through the lifting tool. The operation of unloading the bulk cargo in the box body 110 is simple and safe.

[0122] Preferably, the head of the first driving assembly 171 can be a connecting hook.

[0123] It can be understood that in the unshown embodiment, the first driving assembly can also be a T-shaped head or a rotating lock head.

[0124] Preferably, as shown in FIG. 1, the operation part 131 is configured as an operation hole. In this way, the head of the first driving assembly 171 can be connected to the operation part 131 by extending into the operation hole, and the operation is simple. Figure 7

[0125] ​​The axis direction of the operation hole is parallel to the length direction of the container 110 (an example of horizontal direction). In this way, the opening of the operation hole faces the side of the container 110 along the length direction of the container 110. Thus, it is convenient for the head of the first driving assembly 171 to extend into the operation hole.

[0126] It can be understood that in an embodiment not shown, the axis direction of the pivot shaft of the bottom door can also be parallel to the width direction of the container. At this time, the first sliding member is located at the side of the container along the width direction of the container. At this time, the axis direction of the operation hole is parallel to the width direction of the container 110. The opening of the operation hole faces the side of the container along the width direction of the container.

[0127] It can be understood that in an embodiment not shown, the axis direction of the operation hole can be parallel to the height direction of the container. The opening of the operation hole faces the upper side of the container. At this time, the hoist only needs to be provided with the first driving assembly. The length direction of the first driving assembly is parallel to the height direction of the hoist, so that the first driving assembly can extend into the operation hole and be connected to the first sliding member.

[0128] Please refer to Figure 7 The container further comprises a lock piece 165. The lock piece 165 is movably connected to the container 110 along the length direction of the container 110. When the first sliding member 130 is in the sliding locking position, the lock piece 165 faces the operation hole. In this way, the lock piece 165 can extend into the operation hole. In this way, the lock piece 165 can fix the first sliding member 130 in the sliding locking position, thereby preventing the first sliding member 130 from leaving the sliding locking position.

[0129] The container further comprises a lock piece spring 166. The lock piece spring 166 can be a cylindrical spring. The lock piece spring 166 is connected to the lock piece 165 and the container 110. The lock piece spring 166 is used to apply an action force to the lock piece 165, which can make the lock piece 165 enter the operation hole. In this way, under the action of the lock piece spring 166, when the first sliding member 130 moves to the sliding locking position, the lock piece 165 can automatically extend into the operation hole. When the head of the first driving assembly 171 extends into the operation hole, the head of the first driving assembly 171 will push the lock piece 165 out of the operation hole, thereby unlocking the lock piece 165 to the first sliding member 130.

[0130] Preferably, the lock 165 has a lock guide slope 167. The upper end of the lock guide slope 167 is farther away from the center of the box 110 than the lower end. In this way, when the first slide 130 is moved from the slide unlocking position to the slide locking position, the first slide 130 contacts the lock guide slope 167, and the lock 165 is moved along the length direction of the box 110, so as to compress the lock spring 166. The compressed lock spring 166 exerts a force on the lock 165 to press the first slide 130. When the lock 165 is aligned with the operation hole, the lock 165 extends into the operation hole under the action of the lock spring 166. In this way, the operation of the lock 165 into the operation hole is facilitated.

[0131] It should be noted that the structure of the container (including the structure of the box 110, the structure and position of the lock hook 150, the structure and position of the connecting rod assembly 140, the structure and position of the first slide 130, and the structure and position of the bottom door 120) can enable the lock hook 150 to be hooked to the hooking portion 121 and enable the bottom door 120 to be moved to the closed position when the first slide 130 is moved from the slide unlocking position to the slide locking position.

[0132] Second embodiment

[0133] Please refer to Figure 8 In the second embodiment, the first slide 230 in the slide unlocking position can be moved away from the slide locking position to a slide opening increasing position. In this way, the opening angle of the bottom door can be increased. In the process of moving the bottom door from the slide unlocking position to the slide opening increasing position, the rotation speed of the bottom door is proportional to the moving speed of the first slide 230.

[0134] The container further comprises a flexible member 261 and a second slide 265. The second slide 265 is movably connected to the box along the height direction of the box. The box further comprises a second guide rail. The length direction of the second guide rail extends along the height direction of the box. The second slide 265 is connected to the second guide rail. The second slide 265 and the second guide rail cooperate to guide the movement of the second slide 265 along the height direction of the box. The second slide 265 is pivotally connected to the pivot member.

[0135] The flexible member 261 can be a chain or a rope. One end of the flexible member 261 is connected to the connecting member 264, and then connected to the first slide 230 through the connecting member 264. The other end of the flexible member 261 is connected to the second slide 265. In this way, the flexible member 261 is connected to the lock hook through the pivot member. In this way, when the bottom door is closed, the first slide 230 exerts a force on the lock hook through the flexible member 261 to rotate the lock hook to the hooking position. In this way, the structure of the container is simple.

[0136] The container further comprises a hook spring 262. The hook spring 262 can be a cylindrical spring. One end of the hook spring 262 is connected to a connecting member 264, and in turn connected to the first sliding member 230 through the connecting member 264. In the height direction of the container, the hook spring 262 is above the portion of the second sliding member 265.

[0137] During the movement of the first sliding member 230 from the sliding locking position to the sliding unlocking position, the hook spring 262 starts to contact the second sliding member 265, and the first sliding member 230 continues to move towards the sliding unlocking position, so that the hook spring 262 is compressed. The first sliding member 230 applies a downward force to the second sliding member 265 through the compressed hook spring 262. When the first sliding member 230 moves to the sliding unlocking position, the force makes the hook rotate to the unhooking position.

[0138] When the first sliding member 230 is in the sliding unlocking position, the hook spring 262 can also be compressed, so that the first sliding member 230 can continue to move downward. In this way, when the first sliding member 230 moves from the sliding unlocking position to the sliding opening position, the hook spring 262 continues to be compressed. In this way, the opening angle of the bottom door can be further increased.

[0139] It can be understood that in an embodiment not shown, the other end of the hook spring can also be connected to the second sliding member, and in turn connected to the hook through the second sliding member.

[0140] Preferably, neither the hook spring 262 nor the flexible member 261 protrudes out of the outer contour of the container. In this way, the transportation of the container is facilitated.

[0141] The other settings of the second embodiment are substantially the same as those of the first embodiment, and will not be described here again.

[0142] Third Embodiment

[0143] Please refer to Figure 9In the third embodiment, the driving assembly includes a gear 371, a rack 372, a first driving wheel 373, a second driving wheel 374, a chain 375, and a manual part 376 (e.g. a handlebar) for manual operation. The gear 371 is rotatably connected to the box. The rack 372 is connected to the first sliding member 330. The length direction of the rack 372 extends along the height direction of the box. The gear 371 and the rack 372 are engaged. The first driving wheel 373 is coaxially arranged with the gear 371 and is connected to the gear 371. In this way, the gear 371 and the first driving wheel 373 rotate together. The second driving wheel 374 is rotatably connected to the box. The first driving wheel 373 and the second driving wheel 374 are sprocket wheels. The chain 375 connects the first driving wheel 373 and the second driving wheel 374. In this way, the first driving wheel 373 and the second driving wheel 374 can rotate together. The manual part 376 is connected to the second driving wheel 374, thereby for rotating the second driving wheel 374.

[0144] The staff can manually operate the manual part 376, thereby rotating the second driving wheel 374. The rotating second driving wheel 374 drives the first driving wheel 373 to rotate, thereby driving the gear 371 to rotate. The rotating gear 371 drives the rack 372 to move along the height direction of the box, thereby driving the first sliding member 330 to move along the height direction of the box.

[0145] It can be understood that, in an embodiment not shown, the driving assembly includes a motorized part. The motorized part includes a pneumatic cylinder or a hydraulic cylinder. The motorized part is connected to the box. The motorized part is connected to the first sliding member, thereby for driving the first sliding member to move along the height direction of the box.

[0146] It can be understood that, in an embodiment not shown, the chain can be replaced by a belt. In this case, the first driving wheel and the second driving wheel are belt wheels.

[0147] The gear 371, the rack 372, the first driving wheel 373, the second driving wheel 374, and the chain 375 do not protrude from the outer contour of the box. The manual part 376 is detachably arranged. In this way, when transporting the container, the manual part 376 can be detached, thereby facilitating the transportation of the container. When the manual part 376 is needed to be used, the manual part 376 can be connected to the second driving wheel 374. In this way, the transportation of the container is facilitated.

[0148] The other arrangements of the third embodiment are substantially the same as those of the first embodiment, and will not be described again here.

[0149] Fourth Embodiment

[0150] As Figures 10 to 11As shown, in the fourth embodiment, the first slide 430 includes a slide body 431 and a limiting portion 432. The limiting portion 432 is rotatably connected to the slide body 431 between a blocking position and a moving position. The slide body 431 is connected to the first guide rail for cooperation with the first guide rail. The box body is provided with a blocking portion 412. The blocking portion 412 is located on the outer side of the end wall away from the center of the box body. The blocking portion 412 is connected to the end wall. When the first slide 430 moves to the slide locking position, the first slide 430 is located above the blocking portion 412 in the height direction of the box body. At this time, the limiting portion 432 is located in the moving position. In the width direction of the box body, there is a gap between the limiting portion 432 in the moving position and the blocking portion 412. In this way, when the limiting portion 432 is in the moving position, the first slide 430 can move in the height direction of the box body.

[0151] When the first slide 430 moves to the slide locking position, the limiting portion 432 can rotate to the blocking position. The part of the limiting portion 432 in the blocking position is located directly above the blocking portion 412. In this way, the blocking portion 412 can block the movement of the first slide 430 towards the slide unlocking position.

[0152] The other settings of the fourth embodiment are substantially the same as those of the first embodiment, which will not be described here.

[0153] The present application has been described by the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and illustration, and are not intended to limit the present application to the scope of the described embodiments. In addition, those skilled in the art can understand that the present application is not limited to the above embodiments, and more various modifications and modifications can be made according to the teachings of the present application, which all fall within the scope of the present application claimed. The scope of protection of the present application is defined by the attached claims and their equivalent scope.

[0154] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application. The terms appearing in this document, such as "component", can mean a single part or a combination of multiple parts. The terms appearing in this document, such as "mounting", "providing", can mean that one component is directly attached to another component, or that one component is attached to another component through an intermediate component. The features described in one embodiment herein can be applied to another embodiment alone or in combination with other features, unless the features are not applicable in the other embodiment or are otherwise stated.

Claims

1. A system for unloading a material, characterized in that The unloading system comprises a container and a spreader, The container comprises: a box body having a bottom opening at a bottom end thereof; a bottom door pivotally connected to the box body between an open position for opening the bottom opening and a closed position for closing the bottom opening; a first sliding member movably connected to the box body along a height direction of the box body between a sliding locking position and a sliding unlocking position, the first sliding member being provided with an operation portion; a linkage assembly comprising: a first connecting rod having a first end pivotally connected to the first sliding member; a second connecting rod movably connected to the first connecting rod along a length direction of the first connecting rod between a long connection position and a short connection position, the second connecting rod being farther away from the first end of the first connecting rod at the long connection position than at the short connection position, an end of the second connecting rod away from the first connecting rod being pivotally connected to the bottom door; and a lock assembly connected to the box body; the first sliding member, the lock assembly and the linkage assembly being linked together such that, during movement of the first sliding member from the sliding locking position to the sliding unlocking position, the first sliding member is connected to the lock assembly to move the lock assembly from a state of being locked to the bottom door at the closed position to a state of being away from the bottom door, and the second connecting rod is moved from the long connection position to the short connection position; the first sliding member, the lock assembly and the linkage assembly being linked together such that, during movement of the first sliding member from the sliding unlocking position to the sliding locking position, the linkage assembly drives the bottom door to rotate to the closed position, and the lock assembly is moved from the state of being away from the bottom door to the state of being locked to the bottom door at the closed position; the spreader being movable to the operation portion of the first sliding member at the sliding locking position and connected to the operation portion to drive the first sliding member to move along the height direction of the box body; one of the first connecting rod and the second connecting rod is provided with a long hole, and the first connecting rod and the second connecting rod are connected through the long hole to enable the second connecting rod to be movable between the long connection position and the short connection position, or 2. The system of claim 1, wherein, the linkage assembly is configured in a telescopic sleeve structure in which the first connecting rod is sleeved on the second connecting rod. The bottom door has a hooking portion, and the lock assembly comprises a lock hook rotatably connected to the box body between a hooking position for hooking to the hooking portion and an unhooking position for being away from the hooking portion, so as to move the lock assembly from the state of being locked to the bottom door at the closed position to the state of being away from the bottom door.

3. The system of claim 2, wherein, The lock hook comprises a hook body, a hook head, a first pivot joint and a second pivot joint, the hook head, the first pivot joint and the second pivot joint are located on the same side of the hook body and are connected to the hook body, the hook head, the first pivot joint and the second pivot joint are arranged in a spaced manner along the height direction of the box body, the first pivot joint is pivotally connected to the box body, the second pivot joint is used for being connected to the first sliding member, and the hook head is used for being hooked to the hooking portion.

4. The system of claim 2, wherein, The lower end of the lock hook has a lock hook guide slope, the lock hook guide slope is inclined to the height direction of the lock hook, During movement of the first sliding member from the sliding unlocking position to the sliding locking position, the hooking portion abuts against the lock hook guide slope to slide along the lock hook guide slope, so that the lock hook is hooked to the hooking portion.

5. The system of claim 2, wherein, The container further comprises a pivot joint, one end of the pivot joint is pivotally connected to the lock hook, and the other end of the pivot joint is used for being pivotally connected to the first sliding member.

6. The system of claim 5, wherein, The pivot joint is an elastic member.

7. The unloading system according to claim 2, wherein The container further comprises a connecting member, the connecting member is located below the first sliding member and is connected to the first sliding member, and the first end of the first connecting rod is pivotally connected to the connecting member, or The container further comprises a second sliding member, the second sliding member is located below the first sliding member, the second sliding member is movably connected to the box body along the height direction of the box body, the lock hook is pivotally connected to the second sliding member, and the second sliding member is used for being connected to the first sliding member.

8. The system of claim 1, wherein, The operation portion is configured as an operation hole.

9. The system of claim 8, wherein, The axis direction of the operation hole is parallel to the horizontal direction.

10. A discharge system according to claim 8 or 9, characterized in that The container further comprises a lock member, the lock member is movably connected to the box body, and when the first sliding member is in the sliding locking position, the lock member can extend into the operation hole.

11. The system of claim 10, wherein, The container further comprises a lock member elastic member, the lock member elastic member is connected to the lock member to apply an acting force on the lock member to make the lock member enter the operation hole.

12. The system of claim 10, wherein, The lock member has a lock member guide slope, and the upper end of the lock member guide slope is farther away from the center of the box body than the lower end.

13. The system of claim 1, wherein, The first sliding member comprises a sliding body and a limiting portion, the limiting portion is rotatably connected to the sliding body, the box body is provided with a blocking portion, and when the first sliding member moves to the sliding locking position, the limiting portion can be rotated to a blocking position in which the limiting portion is partially located above the blocking portion to block movement of the first sliding member towards the sliding unlocking position.

14. The system of claim 1, wherein, The lifting appliance comprises: a lifting appliance body; A first driving assembly, a head of the first driving assembly being movably arranged along a length direction of the first driving assembly, the first driving assembly being pivotally connected to the spreader body between a disengaged position and an engaged position, the head of the first driving assembly being disengaged from the operation part when the first driving assembly is in the disengaged position, the head of the first driving assembly being engageable to the operation part when the first driving assembly is in the engaged position, the length direction of the first driving assembly being parallel to the height direction of the box.

15. The system of claim 14, wherein, The spreader further comprises: A second driving assembly, the second driving assembly being connected to the spreader body, a head of the second driving assembly being movably arranged, the head of the second driving assembly being pivotally connected to the first driving assembly to drive the first driving assembly to rotate between the disengaged position and the engaged position.

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