Pressure relief components, discharge door devices and containers

Abstract

The present application provides a pressure relief assembly, a discharge door device and a container. The pressure relief assembly includes a main body, a movable pressure relief door, a rotating shaft, an active arm and a passive arm. The main body is provided with a first opening. The movable pressure relief door is movably connected to the main body in a linear direction between an open position for opening the first opening and a closed position for closing the first opening. The rotating shaft is rotatably connected to the main body around a first axis. The first axis is perpendicular to the first direction and the linear direction. And the axis of the rotating shaft itself is parallel to or coincides with the first axis. The first end of the active arm is fixed to the rotating shaft. The first end of the passive arm is rotatably connected to the second end of the active arm around a second axis. The second end of the passive arm is rotatably connected to the movable pressure relief door around a third axis. The second axis and the third axis are both parallel to the first axis. The present application can improve the safety of the unloading process.

Description

Technical Field

[0001] The present application generally relates to the technical field of containers, and more particularly to a pressure relief assembly, a discharge door device, and a container. Background Art

[0002] When loading bulk cargo into a container, the fluidity of the cargo exerts a certain amount of pressure on the end and side walls. When the door of a container in related art is opened by an operator for unloading, the door is subjected to a significant impact force exerted by the cargo, which can easily cause injury to the operator. Summary of the Invention

[0003] The Summary of the Invention introduces a series of simplified concepts that will be further described in the Detailed Description of the Invention. The Summary of the Invention of this application is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0004] To at least partially solve the above problems, the present application provides a first aspect of a pressure relief assembly for being provided to a door of a container, the pressure relief assembly comprising:

[0005] a main body, wherein the main body is provided with a first opening;

[0006] a movable pressure relief door movably connected to the main body between an open position for opening the first opening and a closed position for closing the first opening in a linear direction, the linear direction being perpendicular to the first direction of the main body;

[0007] a rotating shaft rotatably connected to the main body about a first axis, wherein the first axis is perpendicular to the first direction and the linear direction, and an axis of the rotating shaft itself is parallel to or coincides with the first axis;

[0008] an active arm, a first end of the active arm being fixed to the rotating shaft; and

[0009] A slave arm, wherein the first end of the slave arm is rotatably connected to the second end of the master arm around a second axis, and the second end of the slave arm is rotatably connected to the movable pressure relief door around a third axis, and the second axis and the third axis are both parallel to the first axis.

[0010] According to the pressure relief assembly of the first aspect of the present application, power can be transmitted to the movable pressure relief door via the active arm and the passive arm by rotating the rotating shaft, thereby causing the movable pressure relief door to move to an open position or a closed position. When the pressure relief assembly of the present application is applied to the door body of a container, if the container is loaded with bulk cargo, the movable pressure relief door is first moved to the open position before opening the door body to achieve a small amount of unloading, thereby reducing the pressure on the door body and achieving the purpose of pressure relief. This further helps to reduce the impact force caused by directly opening the door body, and can effectively improve the safety of the unloading process.

[0011] Optionally, the main body includes a guide rail having a guide groove, and the end of the movable pressure relief door in the second direction is inserted into the guide groove to guide the movable pressure relief door to translate along the straight direction, and the second direction is parallel to the first axis.

[0012] Optionally, the main body has a first side and a second side opposite to each other along a first direction, and the first side of the main body is used to face the interior of the container;

[0013] The first axis and the third axis define a first plane;

[0014] The movable pressure relief door is located on the first side of the main body;

[0015] When the movable pressure relief door is in the closed position, the second axis is located between the first axis and the third axis in the straight direction, and the second axis is located on the side of the first plane facing the second side or the second axis is located in the first plane.

[0016] Optionally, the main body has a first side and a second side opposite to each other along a first direction, and the first side of the main body is used to face the interior of the container;

[0017] The main body includes a first side portion and a second side portion that are oppositely arranged along the straight line direction, and the first opening is defined between the first side portion and the second side portion.

[0018] A first protrusion is formed at a portion of the main body corresponding to the first side, and the first protrusion extends toward the first side.

[0019] The movable pressure relief door is located on the first side, and a second protrusion is formed at one end of the movable pressure relief door along the straight line direction. The second protrusion extends toward the second side, and the second protrusion is located on the side of the first protrusion away from the second edge in the straight line direction. In a plane perpendicular to the straight line direction, the orthographic projection of the first protrusion and the orthographic projection of the second protrusion coincide.

[0020] Optionally, the pressure relief assembly further includes a rigid stop member, which is arranged to the second edge portion, and the rigid stop member includes a stop portion, which is located on the side of the movable pressure relief door away from the second side, and the stop portion extends toward the first edge portion along the straight line direction, and in a plane perpendicular to the first direction, the orthographic projection of the movable pressure relief door in the closed position coincides with the orthographic projection of the stop portion.

[0021] Optionally, the pressure relief assembly has a third plane passing through the first axis and perpendicular to the straight line direction;

[0022] The rigid material stopper further includes a guide surface facing the first edge portion;

[0023] In a direction parallel to the first direction and from the first side toward the second side, a distance between the guide surface and the third plane increases.

[0024] Optionally, the pressure relief assembly further includes a seal, which is directly or indirectly provided to the second edge portion and / or the movable pressure relief door, and is used to seal the gap between the movable pressure relief door in the closed position and the second edge portion.

[0025] Optionally, the pressure relief assembly further includes a wear-resistant part, which is located between the end of the movable pressure relief door in the second direction and the main body, and the wear-resistant part is connected to the movable pressure relief door or the main body, and the second direction is parallel to the first axis.

[0026] Optionally, the main body has a first side and a second side opposite to each other along a first direction, and the first side of the main body is used to face the interior of the container;

[0027] The pressure relief assembly also includes a flexible material stopper, which is arranged corresponding to the end of the second direction of the first opening, the second direction is parallel to the first axis, and the flexible material stopper extends along the straight line direction. The flexible material stopper is arranged on the side of the main body and the movable pressure relief door away from the second side along the first direction. The flexible material stopper is connected to the main body, and in a plane perpendicular to the first direction, the orthographic projection of the flexible material stopper coincides with the orthographic projection of the movable pressure relief door.

[0028] Optionally, the main body is provided with at least two first openings;

[0029] The pressure relief assembly includes a rotating shaft, at least two groups of active arms, at least two groups of driven arms and at least two movable pressure relief doors. The rotating shaft is fixedly connected to each group of active arms, each group of active arms is rotatably connected to each group of driven arms, each group of driven arms is rotatably connected to each movable pressure relief door, and each movable pressure relief door is respectively arranged at each first opening.

[0030] Optionally, the main body is provided with at least two first openings;

[0031] The pressure relief assembly includes at least two rotating shafts, at least two groups of active arms, at least two groups of driven arms and at least two movable pressure relief doors, each rotating shaft is fixedly connected to each group of active arms, each group of active arms is rotatably connected to each group of driven arms, each group of driven arms is rotatably connected to each movable pressure relief door, and each movable pressure relief door is respectively arranged at each first opening.

[0032] Optionally, the pressure relief assembly includes an operating handle connected to the rotating shaft.

[0033] Optionally, the pressure relief assembly includes a lock component, the lock component includes a lock handle and a lock buckle, the lock handle is connected to the rotating shaft, the lock handle is configured as the operating handle, and the lock buckle is fixed relative to the main body.

[0034] Optionally, the first axis and the second axis define a second plane, and an angle between the second plane and the straight line direction is α, 0°≤α≤45°.

[0035] Optionally, the dimension of the material stop portion in the linear direction is H1, 5mm≤H1≤20mm; and / or

[0036] The distance between the material blocking portion and the movable pressure relief door in the first direction is H2, 0mm≤H2≤5mm.

[0037] A second aspect of the present application provides a discharge door device, the discharge door device comprising:

[0038] a discharge door, the discharge door defining a second opening; and

[0039] In the above-mentioned pressure relief assembly, the main body is fixed to the discharge door or is configured as a part of the discharge door, and the first opening and the second opening are arranged correspondingly.

[0040] According to the unloading door device of the second aspect of the present application, by applying the above-mentioned pressure relief assembly, when the unloading door device is applied to the container, if the container is loaded with bulk cargo, the movable pressure relief door is first moved to the open position before the unloading door device is opened as a whole to achieve a small amount of unloading, thereby reducing the pressure on the unloading door and achieving the purpose of pressure relief, which in turn helps to reduce the impact force caused by directly opening the unloading door, and can effectively improve the safety of the unloading process.

[0041] A third aspect of the present application provides a container, comprising:

[0042] a door body, the door body being located at a side and / or end of the container, the door body being provided with a second opening; and

[0043] In the above-mentioned pressure relief assembly, the main body is fixed to the door body or is configured as a part of the door body, and the first opening and the second opening are arranged correspondingly.

[0044] According to the container of the third aspect of the present application, by applying the above-mentioned pressure relief assembly, if the container is loaded with bulk cargo, the movable pressure relief door is first moved to the open position before the door body device is opened as a whole to achieve a small amount of unloading, thereby reducing the pressure on the door body and achieving the purpose of pressure relief, which in turn helps to reduce the impact force caused by directly opening the door body and can effectively improve the safety of the unloading process.

[0045] Optionally, when the door body is in a closed state, the straight line direction is parallel to the height direction of the container.

[0046] Optionally, the container includes a unloading door, and the door body is configured as the unloading door.

[0047] Optionally, the container includes a door, and the door body is configured as the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The following drawings of the embodiments of the present application are hereby incorporated as part of the present application for understanding the present application. The drawings show the embodiments of the present application and their descriptions, and are used to explain the principles of the present application. In the drawings,

[0049] Figure 1 It is a perspective view of a container according to a preferred embodiment of the present application, wherein the unloading door is in a closed state and the movable pressure relief door is in a closed position;

[0050] Figure 2 for Figure 1 a front view of the container shown with the movable pressure relief door in the closed position;

[0051] Figure 3It is a perspective view of a discharge door device according to a preferred embodiment of the present application, wherein the movable pressure relief door is in a closed position;

[0052] Figure 4 for Figure 3 An enlarged view of part I in FIG.

[0053] Figure 5 for Figure 3 Another perspective view of the discharge door assembly is shown with the movable pressure relief door in the open position;

[0054] Figure 6 for Figure 3 A front view of the discharge door assembly is shown with the movable pressure relief door in the closed position;

[0055] Figure 7 For the Figure 6 A sectional view taken along line AA in FIG. 1 , wherein the movable pressure relief door is in a closed position;

[0056] Figure 8 for Figure 7 An enlarged view of part II;

[0057] Figure 9 for Figure 7 An enlarged view of part III in FIG.

[0058] Figure 10 To correspond to Figure 6 Another cross-sectional view taken along line AA in FIG. 1 , wherein the movable pressure relief door is in the open position;

[0059] Figure 11 For the Figure 6 A sectional view taken along line BB in FIG.

[0060] Figure 12 for Figure 11 An enlarged view of part IV in FIG.

[0061] Figure 13 is a front view of a discharge door device according to another preferred embodiment of the present application, wherein the movable pressure relief door is in a closed position; and

[0062] Figure 14 It is a three-dimensional view of a container according to another preferred embodiment of the present application, wherein the container door is in a closed state and the movable pressure relief door is in a closed position.

[0063] Description of reference numerals:

[0064] 1: Container 10: Door

[0065] 11: End wall 12: Side wall

[0066] 13: Angle piece 20: Unloading door

[0067] 20a: Second opening 21: Door panel

[0068] 22: Upper side beam 23: Side beam

[0069] 24: Lower side beam 25: Middle beam

[0070] 100: Pressure relief assembly 110: Main body

[0071] 111: First side 112: Second side

[0072] 113: First opening 114: First side

[0073] 115: Second side 116: Door plate

[0074] 116a: first protrusion 117: guide rail

[0075] 117a: Guide groove 130: Movable pressure relief door

[0076] 131: Second protrusion 151: Rotating shaft

[0077] 152: Active arm 153: Slave arm

[0078] 154: Seal 155: Wear-resistant parts

[0079] 156: Flexible stopper 160: Rigid stopper

[0080] 161: material stopper 162: material guide

[0081] 162a: guide surface 163: extended connection portion

[0082] 170: Lock component 171: Lock handle

[0083] 172: Lock AX1: First axis

[0084] AX2: Second axis AX3: Third axis

[0085] D1: first direction D2: second direction

[0086] D3: third direction X: length direction

[0087] Y: width direction Z: height direction DETAILED DESCRIPTION

[0088] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application embodiments can be implemented without one or more of these details. In other examples, some technical features well known in the art are not described to avoid confusion with the present application embodiments.

[0089] In order to fully understand the embodiments of the present application, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of the present application is not limited to the specific details familiar to those skilled in the art.

[0090] It should be understood that the terminology used herein is intended only to describe specific embodiments and is not intended to limit the present application. The singular forms "a," "an," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof.

[0091] Ordinal numbers such as "first" and "second" used in this application are merely identifiers and do not convey any other meaning, such as a specific order. Furthermore, for example, the term "first component" itself does not imply the existence of a "second component," nor does the term "second component" itself imply the existence of a "first component." It should be noted that the terms "upper," "lower," "front," "back," "left," "right," "inner," "outer," and similar expressions used in this application are for illustrative purposes only and are not limiting.

[0092] The terms "parallel" / "perpendicular" and similar expressions used in this application include absolute parallel / perpendicular relationships and approximately parallel / perpendicular relationships (for example, a relationship that differs from absolute parallel / perpendicular by -5° to +5°), which can have equivalent effects.

[0093] Hereinafter, specific embodiments of the present application will be described in more detail with reference to the accompanying drawings. These drawings illustrate representative embodiments of the present application and do not limit the present application.

[0094] See Figures 1 to 14, the present application provides a pressure relief component 100, a discharge door device and a container 1. The discharge door device and the container 1 each have a pressure relief component 100. The pressure relief component 100 is used to discharge a small amount of material before realizing a larger amount of discharge, so as to achieve a certain pressure relief purpose, thereby solving the problem that there is a large impact force and a safety hazard when the door body is directly opened as a whole. The discharge door device includes a discharge door 20. The container 1 includes door bodies such as a discharge door 20 and a box door 10, which can be used for unloading when the door body is open. Among them, if the box door 10 is set at the end of the container 1, it can be called an end door. If the box door 10 is set on the side of the container 1, it can be called a side door. The box door 10 can be in the form of a single door, a double door or a combination thereof. The box door 10 can also be provided with a discharge door 20 for unloading.

[0095] The following will refer to the attached Figures 1 to 14 The pressure relief assembly 100, the discharge door device and the container 1 according to the present application are described in detail.

[0096] This application first provides a pressure relief assembly 100. The pressure relief assembly 100 has a first direction D1, a second direction D2, and a third direction D3. Any two of the first direction D1, the second direction D2, and the third direction D3 are perpendicular. The pressure relief assembly 100 is configured to be attached to the door of a container 1. The container 1 has a length direction X, a width direction Y, and a height direction Z. The pressure relief assembly 100 may include a main body 110, a movable pressure relief door 130, a rotating shaft 151, a driving arm 152, and a driven arm 153.

[0097] The main body 110 is secured to or forms part of the door. The main body 110 has a first side 111 and a second side 112 that are opposite each other along a first direction D1. The first side 111 of the main body 110 faces the interior of the container. The interior of the container may also be referred to as the interior or the interior space. The first side 111 is also the inner side of the main body 110, and the second side 112 is also the outer side of the main body 110. The main body 110 defines a first opening 113.

[0098] The movable pressure relief door 130 is in the open position (eg, Figure 5 and Figure 10 ) and the closed position (as shown) of closing the first opening 113 Figures 1 to 3 、 Figure 6 、 Figure 7 、 Figure 13 as well as Figure 14The movable pressure relief door 130 is movably connected to the main body 110 between the two positions shown in FIG. That is, the movable pressure relief door 130 can be selectively moved in a linear direction to one of an open position, a closed position, and a position between the open position and the closed position. The open position and the closed position here are the two extreme positions of the movable pressure relief door 130 in the linear direction. In other words, when the movable pressure relief door 130 is in the open position, the first opening 113 is maximally opened. When the movable pressure relief door 130 is in the closed position, the first opening 113 is maximally closed. The linear direction is perpendicular to the first direction of the main body. The first direction of the main body is also the first direction D1 of the pressure relief assembly 100. The first direction D1 can also be understood as the thickness direction of the movable pressure relief door 130. The linear direction can be, for example, the second direction D2, the third direction D3, or other directions. When the pressure relief assembly 100 is applied to the container 1 and the door body is in a closed state, the first direction D1 and the second direction D2 are two horizontal directions, and the third direction D3 is parallel to or nearly parallel to the height direction Z of the container 1.

[0099] The rotating shaft 151 is rotatably connected to the main body 110 about a first axis AX1. The first axis AX1 is perpendicular to the first direction D1 and the linear direction. The axis of the rotating shaft 151 is parallel to or coincides with the first axis AX1. For example, the axis of the rotating shaft 151 coincides with the first axis AX1.

[0100] The active arm 152 has a first end and a second end spaced apart along its length. The length of the active arm 152 intersects, for example, perpendicularly to the rotation shaft 151. The first end of the active arm 152 is fixed to the rotation shaft 151. For example, the active arm 152 is fixed to the rotation shaft 151 by welding or integral molding.

[0101] The slave arm 153 has a first end and a second end spaced apart along its length. The first end of the slave arm 153 is rotatably connected to the second end of the master arm 152 about a second axis AX2. The second end of the slave arm 153 is rotatably connected to the movable pressure relief door 130 about a third axis AX3. The second axis AX2 and the third axis AX3 are both parallel to the first axis AX1.

[0102] During the rotation of the rotating shaft 151 , the active arm 152 and the driven arm 153 can drive the movable pressure relief door 130 to move in a straight line direction.

[0103] According to the pressure relief assembly 100 of the present application, by rotating the rotating shaft 151, power can be transmitted to the movable pressure relief door 130 via the active arm 152 and the driven arm 153, thereby causing the movable pressure relief door 130 to move to an open position or a closed position. When the pressure relief assembly 100 of the present application is applied to the door body of the container 1, if the container 1 is loaded with bulk cargo, the movable pressure relief door 130 is first moved to the open position before opening the door body to achieve a small amount of unloading, thereby reducing the pressure on the door body and achieving the purpose of pressure relief. This helps to reduce the impact force caused by directly opening the door body and can effectively improve the safety of the unloading process. At the same time, it is also beneficial to protect the door body to a certain extent, thereby extending the service life of the door body. Compared with the unloading door in the related art that opens and closes by flipping or rotating, the movable pressure relief door 130 of the present application is opened and closed by linear translation, which makes the movable pressure relief door smaller in space during movement. Furthermore, the flip door in the related art may be vulnerable to the impact of cargo when opening, causing it to bounce open, which is quite dangerous. However, when the movable pressure relief door 130 of the pressure relief assembly 100 of the present application is opened, the operator can operate from the side of the movable pressure relief door 130, which allows the operator to avoid the released cargo and improves the operator's personal safety during the pressure relief operation.

[0104] See Figures 3 to 11 For example, the movable pressure relief door 130 is located on the first side 111 of the main body 110. That is, the movable pressure relief door 130 is located on the side of the main body 110 that is closer to the interior of the container. This allows the main body 110 to provide support for the movable pressure relief door 130 in the first direction D1, preventing the movable pressure relief door 130 from separating from the main body 110 due to excessive force, thereby improving the reliability of the movable pressure relief door 130. The first axis AX1 and the third axis AX3 define a first plane. It can be understood that the first plane is a virtual plane defined by the geometric relationship between the first axis AX1 and the third axis AX3. In other words, the first axis AX1 and the third axis AX3 both lie in the first plane. When the movable pressure relief door 130 is in the closed position, the second axis AX2 is linearly located between the first axis AX1 and the third axis AX3, and the second axis AX2 is located on the side of the first plane facing the second side 112, or the second axis AX2 is located in the first plane (that is, the second axis AX2 and the first plane are coplanar). This helps prevent the rotating shaft 151 from getting stuck during the process of rotating in the direction for adjusting the movable pressure relief door 130 to the open position, thereby ensuring the smoothness and reliability of the rotational movement of the rotating shaft 151.

[0105] Continue reading Figures 3 to 11Optionally, the rotating shaft 151 is mounted on the second side 112 of the main body 110. The active arm 152 and the passive arm 153 are located on the side of the main body 110 and the movable pressure relief door 130 facing the second side 112. When the pressure relief assembly 100 is applied to a container, the rotating shaft 151, the active arm 152, and the passive arm 153 are all located outside the container. This does not occupy the space on the first side 111 of the main body 110.

[0106] exist Figure 7 and Figure 10 In the illustrated example, in the first direction D1 , the first axis AX1 and the third axis AX3 are located on the same side of the movable pressure relief door 130 , and the first axis AX1 is farther away from the movable pressure relief door 130 than the third axis AX3 .

[0107] like Figure 8 As shown, the first axis AX1 and the second axis AX2 further define a second plane. The angle between the second plane and the linear direction is α, where 0°≤α≤45°. It can be understood that the second plane is a virtual plane defined by the geometric relationship between the first axis AX1 and the second axis AX2. In other words, the first axis AX1 and the second axis AX2 both lie in the second plane. When the pressure relief assembly 100 is applied to a container, if the linear direction is the third direction D3, i.e., the height direction Z of the container, then α is the angle between the second plane and the height direction Z.

[0108] See Figure 4 and Figure 8 For example, the main body 110 may include a first side 114 and a second side 115 arranged opposite each other along a straight line. The first opening 113 is defined between the first side 114 and the second side 115. A first protrusion 116a is formed on the main body 110 at a location corresponding to the first side 114. The first protrusion 116a extends in the first direction D1 toward the first side 111. Alternatively, the first protrusion 116a extends in the first direction D1 toward a side away from the second side 112. The movable pressure relief door 130 is located on the first side 111 of the main body 110. A second protrusion 131 is formed at one end of the movable pressure relief door 130 along the straight line. The second protrusion 131 extends in the first direction D1 toward the second side 112. The second protrusion 131 is located in the straight line on a side of the first protrusion 116a away from the second side 115. In a plane perpendicular to the straight line, the orthographic projection of the first protrusion 116a and the orthographic projection of the second protrusion 131 coincide. By providing the first protrusion 116a and the second protrusion 131, bulk cargo can be prevented from leaking from the gap between one end of the movable pressure relief door 130 and the main body 110, and foreign matter such as dust and rainwater can be prevented from passing through the gap between one end of the movable pressure relief door 130 and the main body 110.

[0109] Optionally, the first protrusion 116a and the second protrusion 131 may be provided with a structure such as a brush to improve the blocking effect.

[0110] See Figure 8 Alternatively, when the movable pressure relief door 130 is located at the closed position, the second protrusion 131 may abut against or be spaced apart from the first protrusion 116 a .

[0111] Further optionally, when the movable pressure relief door 130 is in the closed position, the second protrusion 131 abuts against the first protrusion 116a. To further enhance the sealing effect between the movable pressure relief door 130 and the main body 110 in the closed position, a sealing strip may be provided on the surfaces of the first protrusion 116a and the second protrusion 131 facing each other.

[0112] See Figure 4 、 Figure 5 、 Figure 7 、 Figure 9 as well as Figure 10 In addition, the pressure relief assembly 100 may further include a rigid material stopper 160. The rigid material stopper 160 here is, for example, a structure made of a hard or relatively hard material such as metal. The rigid material stopper 160 is set to the second side 115. The rigid material stopper 160 may include a material stopper portion 161. The material stopper portion 161 is located on the side of the movable pressure relief door 130 away from the second side 112. The material stopper portion 161 extends toward the first side 114 in a straight line direction. In a plane perpendicular to the first direction D1, the orthographic projection of the movable pressure relief door 130 in the closed position coincides with the orthographic projection of the material stopper portion 161. By providing the material stopper portion 161, it is possible to prevent bulk cargo from leaking out of the gap between the movable pressure relief door 130 and the second side 115 when the movable pressure relief door 130 is in the closed position.

[0113] See Figure 9 Optionally, the dimension of the stopper portion 161 in the linear direction is H1, 5mm≤H1≤20mm.

[0114] See Figure 9 Optionally, the distance between the material blocking portion 161 and the movable pressure relief door 130 in the first direction D1 is H2, 0mm≤H2≤5mm. This allows the material blocking portion 161 to avoid the movable pressure relief door 130 while ensuring a better effect of preventing cargo leakage.

[0115] In some embodiments, the material stopper can be made of a different material than the rest of the rigid material stopper 160. For example, the material stopper can be made of a flexible and elastic material. This allows the material stopper to act as a barrier when the movable pressure relief door is in the closed position, and to deform in response to the force of the released cargo when the movable pressure relief door is in the open position, thereby reducing obstruction to the cargo and facilitating unloading.

[0116] See Figure 9 Furthermore, the rigid material stopper 160 may also include a guide portion 162. The guide portion 162 is connected to the end of the material stopper 161 facing the second side 112. That is, the material stopper 161 is farther away from the second side 112 of the main body 110 than the guide portion 162. A guide surface 162a is formed on the surface of the material guide portion 162 that is arranged opposite to the first edge portion 114 in a straight line direction. The pressure relief assembly 100 has a third plane passing through the first axis AX1 and perpendicular to the straight line direction. The third plane is a virtual plane. In the direction parallel to the first direction D1 and from the first side 111 toward the second side 112, the distance between the guide surface 162a and the third plane increases. The guide surface 162a is used to guide the removal direction of the bulk cargo during unloading, and is also conducive to gradually buffering the impact force received during unloading, so as to facilitate unloading.

[0117] Optionally, guide surface 162a is inclined relative to the third plane. That is, guide surface 162a is inclined relative to the linear direction. In other words, guide surface 162a forms an angle with the third plane. This arrangement not only guides the direction in which cargo is discharged during unloading, facilitating unloading, but also facilitates the manufacture of rigid material stop 160.

[0118] In other examples not shown, the guide surface 162a may be a curved surface, or a surface formed by a combination of a curved surface and a flat surface.

[0119] See Figure 7 Furthermore, the rigid material stopper 160 may further include an extension connection portion 163. The extension connection portion 163 is connected to the end of the material guide portion 162 that is away from the material stopper portion 161 and extends linearly toward the side away from the first side portion 114. The extension connection portion 163 is used to secure to the second side portion 115. This improves the strength of the connection structure between the rigid material stopper 160 and the second side portion 115.

[0120] Optionally, the rigid stopper 160 may be fixed to the second edge portion 115 by welding, riveting, or the like.

[0121] See Figure 9In addition, the pressure relief assembly 100 may further include a seal 154. The seal 154 is directly or indirectly provided to the second side portion 115. When the pressure relief assembly 100 is applied to the container 1, the second side portion 115 may be configured as a part of the frame of the door body, for example. The seal 154 is used to seal the gap between the movable pressure relief door 130 in the closed position and the second side portion 115. By providing the seal 154, foreign matter such as rainwater and dust can be prevented from passing through the gap between the movable pressure relief door 130 and the second side portion 115. At the same time, it also helps to prevent bulk cargo from leaking out of the gap between the movable pressure relief door 130 and the second side portion 115. That is, the seal 154 can improve the sealing between the movable pressure relief door 130 and the second side portion 115.

[0122] For example, the sealing member 154 may be a sealing strip made of elastic soft glue such as rubber.

[0123] Optionally, the sealing member 154 may be fixed to the second edge portion 115 by bonding or riveting.

[0124] In some embodiments, a seal may be provided on the movable pressure relief door 130 , or a seal may be provided on the movable pressure relief door 130 and the second side portion 115 .

[0125] See Figure 12 In addition, the pressure relief assembly 100 may further include a wear-resistant member 155. The wear-resistant member 155 is located between the end of the movable pressure relief door 130 in the second direction D2 and the main body 110. The wear-resistant member 155 is connected to the movable pressure relief door 130 or the main body 110. The second direction D2 is parallel to the first axis AX1. The provision of the wear-resistant member 155 reduces friction between the movable pressure relief door 130 and the main body 110, thereby protecting the movable pressure relief door 130 and the main body 110.

[0126] Optionally, the wear-resistant member 155 can be made of a hard plastic material such as nylon. The wear-resistant member 155 can be, for example, strip-shaped. The strip-shaped wear-resistant member 155 extends in a straight line. The wear-resistant member 155 can be secured to the main body 110 or the movable pressure relief door 130 by bonding or riveting.

[0127] In the illustrated example, the wear-resistant member 155 is provided on the main body 110 .

[0128] In other examples, wear-resistant parts 155 may be provided on the main body 110 and the movable pressure relief door 130 , respectively.

[0129] See Figure 12For example, the main body 110 may include a pair of first guide portions arranged relative to each other along the second direction D2. The first opening 113 is defined between the pair of first guide portions. The second direction D2 is parallel to the first axis AX1. A second guide portion is provided at each end of the movable pressure relief door 130 along the second direction D2. The second guide portion is slidably engaged with the first guide portion in a straight line direction. Optionally, the first guide portion is a guide groove 117a. The second guide portion includes a guide boss. In this way, the end portion of the movable pressure relief door 130 in the second direction D2 can be placed in the guide groove 117a, and while the movable pressure relief door 130 is slidably connected to the main body 110 in a straight line direction, it can prevent the movable pressure relief door 130 from being damaged, and can also prevent foreign matter and bulk cargo from passing through the gap between the end portion of the movable pressure relief door 130 in the second direction D2 and the main body 110.

[0130] See Figure 12 Optionally, the main body 110 may include a guide rail 117 with a guide groove 117a. The guide rail 117 may be integral or split. The end of the movable pressure relief door 130 in the second direction D2 is inserted into the guide groove 117a to guide the movable pressure relief door 130 for linear translation. In the first direction D1, a gap may exist between the movable pressure relief door 130 and the guide rail 117. The wear-resistant member 155 may be disposed in the gap between the movable pressure relief door 130 and the guide rail 117.

[0131] See Figure 11 and Figure 12 In addition, the pressure relief assembly 100 may further include a flexible stopper 156. The flexible stopper 156 here is, for example, a structure made of elastic soft rubber such as rubber or silicone rubber. The flexible stopper 156 is arranged corresponding to the end of the first opening 113 in the second direction D2. The second direction D2 is parallel to the first axis AX1. The flexible stopper 156 extends in a straight line direction. The flexible stopper 156 is arranged on the side of the main body 110 and the movable pressure relief door 130 away from the second side 112 along the first direction D1. The flexible stopper 156 is connected to the main body 110. In a plane perpendicular to the first direction D1, the orthographic projection of the flexible stopper 156 coincides with the orthographic projection of the movable pressure relief door 130. By providing the flexible stopper 156, it is possible to block the internal cargo from entering the guide groove 117a of the guide rail 117, thereby preventing or avoiding obstruction of the reciprocating motion of the movable pressure relief door 130.

[0132] For example, the flexible stopper 156 may be fixed to the main body 110 by bonding or riveting.

[0133] Furthermore, flexible material stopper 156 can also be provided at second protrusion 131 of movable pressure relief door 130, first protrusion 116a of main body 110, and material stopper 161 of rigid material stopper 160. At these locations, flexible material stopper 156 can prevent bulk cargo from leaking through the gap between movable pressure relief door 130 and main body 110. Furthermore, flexible material stopper 156 can also, to a certain extent, prevent foreign matter such as rainwater and dust from passing through the gap between movable pressure relief door 130 and main body 110.

[0134] See Figure 8 、 Figure 10 as well as Figure 13 For example, the main body 110 may include a baffle plate 116. The movable pressure relief door 130 is located on a first side 111 of the baffle plate 116 in the first direction D1. It should be understood that the baffle plate 116 is a portion of the main body 110, and the first side 111 of the baffle plate 116 is the first side 111 of the main body 110. The baffle plate 116 is spaced apart from the second side 115 in a straight line. The first protrusion 116a is located at one end of the baffle plate 116 near the second side 115. In the first direction D1, the gap between the first protrusion 116a and the movable pressure relief door 130 is larger than the gap between the second protrusion 131 and the baffle plate 116. In the case where there is a gap between the first protrusion 116a and the movable pressure relief door 130 and a gap between the second protrusion 131 and the door baffle 116, the gap between the first protrusion 116a and the movable pressure relief door 130 may be larger than the gap between the second protrusion 131 and the door baffle 116. This can prevent foreign objects from entering the first side 111 of the main body 110 and prevent bulk cargo on the first side 111 from leaking to the second side 112 of the main body 110.

[0135] See Figure 7 and Figure 8 Optionally, when the movable pressure relief door 130 is in the closed position, the second axis AX2 is located on the side of the first plane facing the second side 112, and the maximum distance between the rotating connection part of the active arm 152 and the driven arm 153 in the first direction D1 and the baffle plate 116 is H3, then 10mm≤H3≤60mm.

[0136] See Figures 1 to 6In one example, the main body 110 is provided with at least two first openings 113. The pressure relief assembly 100 may include a rotating shaft 151, at least two groups of active arms 152, at least two groups of driven arms 153, and at least two movable pressure relief doors 130. The rotating shaft 151 is fixedly connected to each group of active arms 152. Each group of active arms 152 is rotatably connected to each group of driven arms 153. Each group of driven arms 153 is rotatably connected to each movable pressure relief door 130. Each movable pressure relief door 130 is respectively arranged at each first opening 113. In this embodiment, by rotating the rotating shaft 151, each movable pressure relief door 130 can be adjusted to move simultaneously toward an open position or a closed position.

[0137] Optionally, the main body 110 is provided with two first openings 113. The pressure relief assembly 100 may include a rotating shaft 151, two sets of active arms 152, two sets of passive arms 153, and two movable pressure relief doors 130. Each set of active arms 152 includes two active arms 152. The two active arms 152 are spaced apart in the second direction D2, which helps to reduce the force applied to a single active arm 152 and prevents excessive concentration of force on the rotating shaft 151. The two active arms 152 are connected by a connecting rod to enhance structural strength. Each set of passive arms 153 includes two passive arms 153.

[0138] See Figure 13 In another example, the main body 110 is provided with at least two first openings 113. The pressure relief assembly 100 may include at least two rotating shafts 151, at least two groups of active arms 152, at least two groups of passive arms 153, and at least two movable pressure relief doors 130. Each rotating shaft 151 is fixedly connected to each group of active arms 152. Each group of active arms 152 is rotatably connected to each group of passive arms 153, and each group of passive arms 153 is rotatably connected to each movable pressure relief door 130. Each movable pressure relief door 130 is respectively arranged at each first opening 113. In this embodiment, by rotating the corresponding rotating shaft 151, the corresponding movable pressure relief door 130 can be independently adjusted to move toward the open position or the closed position. This is conducive to the gradual pressure relief operation and further improves the safety of the hydraulic operation.

[0139] See Figures 1 to 14 For example, the pressure relief assembly 100 may include an operating handle connected to the rotating shaft 151. The user applies torque to the rotating shaft 151 by holding the operating handle, thereby achieving the purpose of rotating the rotating shaft 151 with less effort.

[0140] Optionally, the operating handle may be fixed to the rotating shaft 151 and extend in a direction intersecting the rotating shaft 151 .

[0141] Optionally, the operating handle may also be completely or partially rotatable relative to the rotating shaft 151 so as to fold the operating handle or realize other functions of the operating handle.

[0142] See Figure 4 and Figure 13 For example, the pressure relief assembly 100 may include a lock component 170. The lock component 170 here may be some existing lock for the container 1, such as the door lock disclosed in the patent document with publication number CN206679627U. The lock component 170 may include a lock handle 171 and a lock buckle 172. The lock handle 171 is connected to the rotating shaft 151. The lock handle 171 is configured as an operating handle. The lock buckle 172 is fixedly arranged relative to the main body 110. The lock handle 171 and the lock buckle 172 can cooperate with each other to achieve a locked connection. In some cases, the lock handle 171 and the lock buckle 172 can be further connected by other locking structures to improve the locking effect.

[0143] See Figures 3 to 13 The present application also provides a discharge door device. The discharge door device may include a discharge door 20 and the aforementioned pressure relief assembly 100. The discharge door 20 has a second opening 20a. The area of ​​the second opening 20a is smaller than that of the discharge door 20. The discharge door 20 herein may be configured as the aforementioned door body. The main body 110 is fixed to the discharge door 20 or configured as a portion of the discharge door 20. The first opening 113 is arranged corresponding to the second opening 20a.

[0144] According to the unloading door device of the present application, by applying the above-mentioned pressure relief assembly 100, when the unloading door device is applied to the container 1, if the container 1 is loaded with bulk cargo, the movable pressure relief door 130 is first moved to the open position before the unloading door device is opened as a whole to achieve a small amount of unloading, thereby reducing the pressure on the unloading door 20 and achieving the purpose of pressure relief, which in turn helps to reduce the impact force caused by directly opening the unloading door 20, and can effectively improve the safety of the unloading process.

[0145] Alternatively, the area of ​​the first opening 113 may be smaller than or equal to the area of ​​the second opening 20a. That is, the first opening 113 may be smaller than the second opening 20a, or the first opening 113 may be the same size as the second opening 20a. The shape of the first opening 113 may be the same as or different from the shape of the second opening 20a.

[0146] See Figure 6 、 Figure 7 、 Figure 10 as well as Figure 11Optionally, the discharge door 20 has a door panel portion 21 and a door frame. The door panel portion 21 is fixed to the door frame. The door frame may, for example, include an upper side beam 22 and a lower side beam 24 arranged opposite to each other and two side beams 23 arranged opposite to each other. The upper side beam 22, the lower side beam 24 and the side beams 23 are fixedly connected to enclose a square frame. The frame may further include, for example, an intermediate beam 25. The intermediate beam 25 is arranged between adjacent second openings 20a to enhance the structural strength of the portion for setting the pressure relief assembly 100. The intermediate beam 25 may, for example, be parallel to or nearly parallel to the side beams 23.

[0147] See Figures 1 to 14 The present application also provides a container 1. The container 1 may include a door and the aforementioned pressure relief assembly 100. The door is located at least one of the side or end of the container 1. That is, the door is provided on at least one of the side wall 12 and the end wall 11 of the container 1. The door has a second opening 20a. The main body 110 is fixed to the door or configured as a part of the door. The first opening 113 is arranged corresponding to the second opening 20a.

[0148] According to the container 1 of the present application, by applying the above-mentioned pressure relief assembly 100, if the container 1 is loaded with bulk cargo, the movable pressure relief door 130 is first moved to the open position before the door body device is opened as a whole to achieve a small amount of unloading, thereby reducing the pressure on the door body and achieving the purpose of pressure relief, which in turn helps to reduce the impact force caused by directly opening the door body and can effectively improve the safety of the unloading process.

[0149] See Figure 1 、 Figure 2 as well as Figure 14 Optionally, when the door body is in a closed state, the straight line direction is parallel to the height direction Z of the container 1. That is, the movable pressure relief door 130 can reciprocate up and down in the height direction Z of the container 1.

[0150] In other examples, the linear direction may be horizontal. This allows the movable pressure relief door 130 to reciprocate horizontally. For example, if the door is located at the end of the container 1, the linear direction may be the width direction Y of the container 1. For example, if the door is located at the side of the container 1, the linear direction may be the length direction X of the container 1.

[0151] See Figure 1 Optionally, the container 1 may include corner fittings 13. The corner fittings 13 include top and bottom corner fittings 13. The active arm 152 and the driven arm 153 do not extend beyond the plane of the corner fittings 13. This ensures that the external dimensions of the container 1 do not affect transportation.

[0152] See Figure 1 and Figure 2In one example, the container 1 may include a discharge door 20 . The door body is configured as the discharge door 20 . That is, the pressure relief assembly 100 is provided at the discharge door 20 .

[0153] See Figure 14 In another example, the container 1 may include a door 10 . The door body is configured as the door 10 . That is, the pressure relief assembly 100 is provided on the door 10 .

[0154] In another example, the container 1 may include door bodies such as a discharge door 20 and a container door 10. In this embodiment, the pressure relief assembly 100 may be selectively provided in at least one of the door bodies.

[0155] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art in the technical field of this application. The terms used herein are only for describing specific implementation purposes and are not intended to limit this application. Terms such as "setting" appearing in this document can mean that one component is directly attached to another component, or that one component is attached to another component through an intermediate component. Features described in this document in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0156] The present application has been described through the above embodiments, but it should be understood that the above embodiments are for illustrative and illustrative purposes only and are not intended to limit the present application to the described embodiments. Those skilled in the art will appreciate that many more variations and modifications may be made based on the teachings of this application, and all of these variations and modifications fall within the scope of protection claimed in this application.

Claims

1. A pressure relief assembly, used to be installed on the door of a container, characterized in that: The pressure relief assembly comprises: a main body, wherein the main body is provided with a first opening; a movable pressure relief door movably connected to the main body between an open position opening the first opening and a closed position closing the first opening in a linear direction perpendicular to the first direction of the main body; a rotating shaft rotatably connected to the main body about a first axis, wherein the first axis is perpendicular to the first direction and the linear direction, and an axis of the rotating shaft itself is parallel to or coincides with the first axis; an active arm, a first end of the active arm being fixed to the rotating shaft; and A slave arm, wherein the first end of the slave arm is rotatably connected to the second end of the master arm around a second axis, and the second end of the slave arm is rotatably connected to the movable pressure relief door around a third axis, and the second axis and the third axis are both parallel to the first axis.

2. The pressure relief assembly according to claim 1, characterized in that: The main body includes a guide rail having a guide groove, and the end of the movable pressure relief door in the second direction is inserted into the guide groove to guide the movable pressure relief door to translate along the linear direction, and the second direction is parallel to the first axis.

3. The pressure relief assembly according to claim 1, wherein: The main body has a first side and a second side opposite to each other along a first direction, the first side of the main body being configured to face toward the interior of the container; The first axis and the third axis define a first plane; The movable pressure relief door is located on the first side of the main body; When the movable pressure relief door is in the closed position, the second axis is located between the first axis and the third axis in the straight direction, and the second axis is located on the side of the first plane facing the second side or the second axis is located in the first plane.

4. The pressure relief assembly according to claim 1, wherein: The main body has a first side and a second side opposite to each other along a first direction, the first side of the main body being configured to face toward the interior of the container; The main body includes a first side portion and a second side portion that are oppositely arranged along the straight line direction, and the first opening is defined between the first side portion and the second side portion. A first protrusion is formed at a portion of the main body corresponding to the first side, and the first protrusion extends toward the first side. The movable pressure relief door is located on the first side, and a second protrusion is formed at one end of the movable pressure relief door along the straight line direction. The second protrusion extends toward the second side, and the second protrusion is located on the side of the first protrusion away from the second edge in the straight line direction. In a plane perpendicular to the straight line direction, the orthographic projection of the first protrusion and the orthographic projection of the second protrusion coincide.

5. The pressure relief assembly according to claim 4, characterized in that: The pressure relief assembly also includes a rigid stop member, which is arranged to the second edge portion. The rigid stop member includes a stop portion, which is located on the side of the movable pressure relief door away from the second side. The stop portion extends toward the first edge portion along the straight line direction. In a plane perpendicular to the first direction, the orthographic projection of the movable pressure relief door in the closed position coincides with the orthographic projection of the stop portion.

6. The pressure relief assembly according to claim 5, characterized in that: The pressure relief assembly has a third plane passing through the first axis and perpendicular to the straight line direction; The rigid material stopper further includes a guide surface facing the first edge portion; In a direction parallel to the first direction and from the first side toward the second side, a distance between the guide surface and the third plane increases.

7. The pressure relief assembly according to claim 4, characterized in that: The pressure relief assembly further includes a seal, which is directly or indirectly provided to the second edge portion and / or the movable pressure relief door, and is used for sealing a gap between the movable pressure relief door in the closed position and the second edge portion.

8. The pressure relief assembly according to claim 1, wherein: The pressure relief assembly further includes a wear-resistant member located between an end portion of the movable pressure relief door in a second direction and the main body, and the wear-resistant member is connected to the movable pressure relief door or the main body, wherein the second direction is parallel to the first axis.

9. The pressure relief assembly according to claim 1, wherein: The main body has a first side and a second side opposite to each other along a first direction, the first side of the main body being configured to face toward the interior of the container; The pressure relief assembly also includes a flexible material stopper, which is arranged corresponding to the end of the second direction of the first opening, the second direction is parallel to the first axis, and the flexible material stopper extends along the straight line direction. The flexible material stopper is arranged on the side of the main body and the movable pressure relief door away from the second side along the first direction. The flexible material stopper is connected to the main body, and in a plane perpendicular to the first direction, the orthographic projection of the flexible material stopper coincides with the orthographic projection of the movable pressure relief door.

10. The pressure relief assembly according to any one of claims 1 to 9, characterized in that: The main body is provided with at least two first openings; The pressure relief assembly includes a rotating shaft, at least two groups of active arms, at least two groups of driven arms and at least two movable pressure relief doors. The rotating shaft is fixedly connected to each group of active arms, each group of active arms is rotatably connected to each group of driven arms, each group of driven arms is rotatably connected to each movable pressure relief door, and each movable pressure relief door is respectively arranged at each first opening.

11. The pressure relief assembly according to any one of claims 1 to 9, characterized in that: The main body is provided with at least two first openings; The pressure relief assembly includes at least two rotating shafts, at least two groups of active arms, at least two groups of driven arms and at least two movable pressure relief doors, each rotating shaft is fixedly connected to each group of active arms, each group of active arms is rotatably connected to each group of driven arms, each group of driven arms is rotatably connected to each movable pressure relief door, and each movable pressure relief door is respectively arranged at each first opening.

12. The pressure relief assembly according to any one of claims 1 to 9, characterized in that: The pressure relief assembly includes an operating handle connected to the rotating shaft.

13. The pressure relief assembly according to claim 12, wherein: The pressure relief assembly includes a lock component, which includes a lock handle and a lock buckle. The lock handle is connected to the rotating shaft, the lock handle is configured as the operating handle, and the lock buckle is fixed relative to the main body.

14. The pressure relief assembly according to any one of claims 1 to 9, characterized in that: The first axis and the second axis define a second plane, and an angle between the second plane and the straight line direction is α, 0°≤α≤45°.

15. The pressure relief assembly according to claim 5 or 6, characterized in that: The dimension of the stopper in the linear direction is H1, 5mm≤H1≤20mm; and / or The distance between the material blocking portion and the movable pressure relief door in the first direction is H2, 0mm≤H2≤5mm.

16. A discharge door device, characterized in that: The discharge door device comprises: a discharge door, the discharge door defining a second opening; and According to any one of claims 1 to 15, the main body is fixed to the discharge door or is configured as a part of the discharge door, and the first opening is arranged corresponding to the second opening.

17. A container, characterized in that: The container comprises: a door body, the door body being located at a side and / or end of the container, the door body being provided with a second opening; and According to any one of claims 1 to 15, the main body is fixed to the door body or configured as a part of the door body, and the first opening is arranged corresponding to the second opening.

18. The container according to claim 17, wherein: When the door is in a closed state, the straight line direction is parallel to the height direction of the container.

19. The container according to any one of claims 17 to 18, characterized in that The container includes a discharge door, and the door body is configured as the discharge door.

20. The container according to any one of claims 17 to 18, characterized in that The container includes a door, and the door body is configured as the door.

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