Displacement constraint device

Abstract

The purpose of this invention is to provide a displacement constraint device that is simple to operate and highly safe. The displacement constraint device of this invention is used to constrain the displacement of an object, and includes: a base; a rotating claw, which is rotatable relative to the base and is used to abut against the object to constrain its displacement; and an operating member, which is connected to the rotating claw and can engage with the base. By operating the operating member, the engagement position of the operating member relative to the base changes, allowing the rotating claw to rotate between an upright state constraining the object's displacement and a flattened state releasing the object's displacement.

Description

Technical Field

[0001] This invention relates to a displacement restraint device for restraining the displacement of an object, such as a container that can be used in an aircraft cargo hold. Background Technology

[0002] When transporting cargo by air, containers (air containers, pallets, etc.) are typically used to load the cargo, and then the containers are placed in predetermined positions within the aircraft cargo hold. The cargo loading system is installed on the aircraft cargo hold floor and is used to move or restrict the movement of the containers. Displacement restraint devices, used to constrain container displacement, are one component of the cargo loading system. According to air cargo transport management requirements, displacement restraint devices must be installed to restrict the displacement of the containers within the cargo hold during transport. The container floor is located at the bottom of the container. After the container is loaded into the cargo hold and reaches its predetermined position, the displacement restraint device in the cargo hold constrains the container by limiting the displacement of the container floor. When it is necessary to move the container (such as for loading or unloading cargo), the displacement restraint device must be released from the container floor, and the displacement restraint device must be flattened to allow the container to move within the cargo hold.

[0003] As existing technologies, several related displacement constraint devices have been published both domestically and internationally. For example, the patent application "CN202211497494.X / A Multifunctional Composite Guide Rail Device for Aircraft Cargo Systems" filed by Qing'an Group Co., Ltd. involves a side guide rail (auxiliary guide rail) that automatically resets after the container passes over it. However, due to its special cantilever structure, the friction is significant when the container's bottom plate presses down on the side guide rail, leading to container jamming in practice. Furthermore, the device cannot be locked into a displacement constraint state or released from constraint. The patent application "US2018222586A1 / LOCKASSEMBLY WITH ROTATING INNER PAWL" filed by Goodrich requires manual operation of the rotating claw, which is prone to injury. In practice, operators must be cautious and agile. The patent application "US2013121782A1 / SELF-LOCKING, OVERRIDEABLE AND ATTENUATING CARGO GUIDE" filed by Goodrich also involves a device that requires manual contact with the rotating claw, which can cause injury. The device involved in the "ANDRESTRAINT" application is relatively complex in structure and large in size, and its placement in the cargo hold requires certain floor structure specifications. The device involved in "US2010209209A1 / SELF-LOCKING, OVERRIDEABLE ANDATTENUATING CARGO GUIDE AND RESTRAINT" applied for by Goodrich cannot be flattened, and therefore is not suitable for widespread placement in the cargo hold. The device involved in "US2008099620A1 / SELF-ADJUSTING ULD LOADINGGUIDE AND RESTRAINT" applied for by Goodrich requires hands to touch the extension arm and guide during operation, which can easily lead to injury. The device involved in "US2007086871A1 / AIR CARGO VERTICAL RESTRAINT ASSEMBLY" applied for by Goodrich can only be in a constrained displacement state, which will make it inconvenient for the movement of the container in the cargo hold when loading and unloading the container. Summary of the Invention

[0004] In view of the above problems, the purpose of this invention is to provide a displacement constraint device that is simple to operate and has high safety.

[0005] To achieve the aforementioned objective of the present invention, the present invention provides a displacement constraint device for constraining the displacement of an object. The displacement constraint device includes: a base; a rotating claw, which is rotatable relative to the base and is used to abut against the object to constrain its displacement; and an operating member, which is connected to the rotating claw and can engage with the base. By operating the operating member, the engagement position of the operating member relative to the base changes, enabling the rotating claw to rotate between an upright state constraining the displacement of the object and a flattened state releasing the constraint on the object.

[0006] According to the displacement constraint device of the present invention, the displacement constraint function (rotating claw in an upright state) or the constraint release function (rotating claw in a flattened state) can be achieved by controlling the engagement position of the operating member, making operation simple. Furthermore, when operating the displacement constraint device of the present invention, the hand is positioned at the operating member and will not come into contact with moving parts such as the rotating claw, thus avoiding injury and ensuring high safety. Therefore, the present invention provides a displacement constraint device that is simple to operate and highly safe.

[0007] Preferably, the displacement constraint device further includes a support member connected to the rotating claw, the support member being mounted on the base via a positioning shaft.

[0008] According to the displacement constraint device of the present invention, the rotating claw can be positioned relative to the base by means of a support member.

[0009] Preferably, the displacement constraint device further includes a reset member, which is connected to the rotating claw and the support member via a follower shaft, for rotating the rotating claw and the support member.

[0010] According to the displacement constraint device of the present invention, the rotating claw and the support can be rotated relative to the base by means of a reset member.

[0011] Preferably, the reset element is a torsion spring, one end of the reset element is inserted into the rotating claw, and the other end of the reset element is placed on the support element.

[0012] According to the displacement constraint device of the present invention, the rotating claw and the support can be rotated relative to the base by utilizing the restoring force of the torsion spring.

[0013] Preferably, a guide groove is provided on the side wall of the base, and an upright position slot and a flattened position slot are provided on the bottom plate of the base. The operating member and the rotating claw are mounted on the guide groove via a sliding pivot. The operating member can switch between a position in which the rotating claw is engaged with the upright position slot to be in an upright state and a position in which the rotating claw is engaged with the flattened position slot to be in a flattened state by sliding along the guide groove.

[0014] According to the displacement constraint device of the present invention, the upright and flattened states of the rotating claw can be easily switched by sliding the manipulator along the guide groove.

[0015] Preferably, the operating member is provided with: a handle for operation; and a limiting protrusion for selectively engaging with one of the upright position slot and the flattened position slot of the base.

[0016] According to the displacement constraint device of the present invention, by placing the limiting protrusion of the operating member into the vertical position slot, the base, rotating claw, support member and operating member can form a stable triangular support structure, which can lock the rotating claw in the vertical state. By placing the limiting protrusion into the flattened position slot, the rotating claw can be locked in the flattened state. The state locking method is simple.

[0017] Preferably, the displacement restraint device is used to restrain the displacement of the container by being installed inside the aircraft cargo hold.

[0018] According to the displacement restraint device of the present invention, the displacement restraint device can be installed at a predetermined position on the aircraft cargo hold floor structure to restrain the displacement of the container, according to the specifications of the container. Attached Figure Description

[0019] Figure 1 This is a perspective view showing the structure of the displacement constraint device (in an upright state) according to an embodiment of the present invention.

[0020] Figure 2 This is a perspective view showing the structure of the base of the displacement constraint device according to an embodiment of the present invention.

[0021] Figure 3 This is a perspective view showing the structure of the rotating claw of the displacement constraint device according to an embodiment of the present invention.

[0022] Figure 4 This is a perspective view showing the structure of the support member of the displacement constraint device according to an embodiment of the present invention.

[0023] Figure 5 This is a perspective view showing the structure of the control member of the displacement constraint device according to an embodiment of the present invention.

[0024] Figure 6 This is a perspective view showing the combined installation structure of the base and support of the displacement constraint device according to an embodiment of the present invention.

[0025] Figure 7 This is a perspective view showing the combined installation structure of the support member, rotating claw, and operating member of the displacement constraint device according to an embodiment of the present invention.

[0026] Figure 8This is another perspective view showing the combined installation structure of the support member, rotating claw, and operating member of the displacement constraint device according to an embodiment of the present invention.

[0027] Figure 9 This is another perspective view showing the combined installation structure of the support member, rotating claw, and operating member of the displacement constraint device according to an embodiment of the present invention.

[0028] Figure 10 This is another perspective view showing the combined installation structure of the support member, rotating claw, and operating member of the displacement constraint device according to an embodiment of the present invention.

[0029] Figure 11 This is a perspective view showing the combined installation structure of the support member, rotating claw, operating member and base of the displacement constraint device according to an embodiment of the present invention.

[0030] Figure 12 This is a side view showing the structure of the displacement constraint device according to an embodiment of the present invention constraining the displacement of the container base plate.

[0031] Figure 13 This is a perspective view showing the structure of the displacement constraint device according to an embodiment of the present invention in a flattened state.

[0032] (Symbol Explanation)

[0033] 1. Displacement constraint device

[0034] 10 bases

[0035] 101 Guide groove

[0036] 102 mounting holes

[0037] 103 Vertical Position Slot

[0038] 104 Flattening slot

[0039] 11 Rotating Claw

[0040] 111 mounting holes

[0041] 112 mounting holes

[0042] 113 mounting holes

[0043] 12 Support components

[0044] 121 mounting holes

[0045] 122 mounting holes

[0046] 13 Control components

[0047] 131 Handle

[0048] 132 mounting holes

[0049] 133 Limiting protrusion

[0050] 21 Positioning pivot

[0051] 22 Follower shaft

[0052] 23 Sliding pivot

[0053] 24 Reset components

[0054] 30 Container base plate

[0055] 40 Cargo hold floor plan Detailed Implementation

[0056] Various embodiments of the invention will now be described in detail, examples of which are shown in the accompanying drawings and described below. Although the invention will be described in conjunction with exemplary embodiments, it should be understood that this specification is not intended to limit the invention to those exemplary embodiments. Rather, the invention is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents, and other embodiments that may be included within the spirit and scope of the invention as defined by the appended claims.

[0057] Below, in conjunction with Figures 1 to 13 The displacement constraint device 1 according to an embodiment of the present invention will be described. Figure 1 This is a perspective view showing the structure of the displacement constraint device 1 (in an upright state) according to an embodiment of the present invention. Figure 2 This is a perspective view showing the structure of the base 10 of the displacement constraint device 1 according to an embodiment of the present invention. Figure 3 This is a perspective view showing the structure of the rotating claw 11 of the displacement constraint device 1 according to an embodiment of the present invention. Figure 4 This is a perspective view showing the structure of the support member 12 of the displacement constraint device 1 according to an embodiment of the present invention. Figure 5 This is a perspective view showing the structure of the operating member 13 of the displacement constraint device 1 according to an embodiment of the present invention. Figure 6 This is a perspective view showing the combined installation structure of the base 10 and the support member 12 of the displacement constraint device 1 according to an embodiment of the present invention. Figure 7 This is a perspective view showing the combined installation structure of the support member 12, the rotating claw 11 and the operating member 13 of the displacement constraint device 1 according to an embodiment of the present invention.

[0058] Figure 8 This is another perspective view showing the combined installation structure of the support member 12, the rotating claw 11 and the operating member 13 of the displacement constraint device 1 according to an embodiment of the present invention. Figure 9This is another perspective view showing the combined installation structure of the support member 12, the rotating claw 11 and the operating member 13 of the displacement constraint device 1 according to an embodiment of the present invention. Figure 10 This is another perspective view showing the combined installation structure of the support member 12, the rotating claw 11 and the operating member 13 of the displacement constraint device 1 according to an embodiment of the present invention. Figure 11 This is a perspective view showing the combined installation structure of the support member 12, rotating claw 11, operating member 13 and base 10 of the displacement constraint device 1 according to an embodiment of the present invention. Figure 12 This is a side view showing the structure of the displacement constraint device 1 according to an embodiment of the present invention constraining the displacement of the container base plate 30. Figure 13 This is a perspective view showing the structure of the displacement constraint device 1 according to the embodiment of the present invention in a flattened state.

[0059] (Basic structure of displacement constraint device 1)

[0060] The following mainly refers to Figures 1 to 5 The basic structure of the displacement constraint device 1 according to the embodiment of the present invention will be described.

[0061] The displacement restraint device 1 of this invention is installed, for example, in an aircraft cargo hold to restrain the displacement of a container. However, the application of the displacement restraint device of this invention is not limited to this; it can be appropriately installed in any location to restrain the displacement of an object.

[0062] like Figure 1 As shown, the displacement constraint device 1 of the present invention includes: a base 10, a rotating claw 11, a support member 12, a control member 13, a positioning shaft 21, a follower shaft 22, a sliding shaft 23, and a reset member 24.

[0063] like Figure 2 As shown, the base 10 has a guide groove 101 and a mounting hole 102 for mounting the positioning shaft 21 on its side wall, and an upright position slot 103 and a flat position slot 104 on its bottom plate. Specifically, the upright position slot 103 and the flat position slot 104 extend along the width direction of the bottom plate, and the upright position slot 103 and the flat position slot 104 are arranged side by side in the length direction of the bottom plate.

[0064] like Figure 3 As shown, the rotating claw 11 is provided with a mounting hole 111 for mounting the follower rotating shaft 22, a mounting hole 112 for mounting the sliding rotating shaft 23, and a mounting hole 113 for mounting one end of the reset member 24 on the inner side of the two side walls, that is, one end of the reset member 24 is inserted into the mounting hole 113.

[0065] like Figure 4As shown, the support member 12 is provided with a mounting hole 121 for mounting the follower shaft 22 and a mounting hole 122 for mounting the positioning shaft 21.

[0066] like Figure 5 As shown, the operating member 13 is provided with a mounting hole 132 for mounting the sliding pivot 23, a handle 131 for operation, and a limiting protrusion 133 for selectively engaging with one of the upright position slot 103 and the flat position slot 104 of the base 10. Specifically, the handle 131 protrudes upward from the base end side of the flat plate portion of the operating member 13, and the limiting protrusion 133 protrudes downward from the base end side of the flat plate portion of the operating member 13.

[0067] (Combined installation structure of displacement constraint device 1)

[0068] The following mainly refers to Figures 6 to 11 The combined installation structure of the displacement constraint device 1 according to the embodiment of the present invention will be described.

[0069] When assembling the displacement constraint device 1 according to the embodiment of the present invention, such as Figure 6 As shown, the support member 12 is mounted on the base 10 via the positioning pivot 21.

[0070] like Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, the rotating claw 11 and the reset member 24 are connected to the support member 12 through the follower shaft 22. One end of the reset member 24 is inserted into the mounting hole 113 on the rotating claw 11, and the other end of the reset member 24 is placed on the support member 12.

[0071] like Figure 11 As shown, the rotating claw 11 is connected to the operating member 13 via a sliding shaft 23, and the sliding shaft 23 is installed in the guide groove 101 on the side wall of the base 10.

[0072] (Action and function of displacement constraint device 1)

[0073] The following mainly refers to Figure 1 , Figures 12 to 13 The operation and function of the displacement constraint device 1 according to the embodiment of the present invention will be explained.

[0074] The displacement restraint device 1 of the present invention can be installed at a predetermined position on the aircraft cargo hold floor structure, for example, according to the specifications of the container.

[0075] like Figure 13 As shown, the displacement constraint device 1 of the present invention is in a flattened state when the displacement constraint is released. At this time, the limiting protrusion 133 on the operating member 13 is located in the flattened position slot 104 of the base 10, and the reset member 24 is in a twisted state.

[0076] like Figure 1 , Figure 12 As shown, when the container is loaded into the cargo hold and reaches the preset position inside the cargo hold, the operator hooks the handle 131 on the control component 13 and pulls the handle 131 upwards, causing the limiting protrusion 133 to disengage from the flattening slot 104 of the base 10. The rotating claw 11 and the support component 12 rotate around the follower shaft 22 under the action of the reset component 24. When the rotating claw 11 rotates around the follower shaft 22, it drives the sliding shaft 23 along the guide groove 101. The sliding shaft 23 drives the control component 13 to move until the limiting protrusion 133 of the control component 13 enters the upright slot 103, and the displacement constraint device 1 reaches the upright state. At this time, as... Figure 12 As shown, the edge of the container bottom plate 30 is located between the rotating claw 11 of the displacement constraint device 1 and the cargo hold floor plane 40, thereby constraining the displacement of the container bottom plate 30 along the X and Y directions.

[0077] When the container needs to be moved, first pull the handle 131 and lift it upwards, then continue pulling the handle 131 until the limiting protrusion 133 is above the flattening slot 104 of the base 10. Then press the handle 131 down and position the limiting protrusion 133 within the flattening slot 104 of the base 10, thus achieving the displacement constraint device 1. Figure 13 The container base plate 30 is shown in the flattened state, at which point the displacement constraints along the X and Y directions are released.

[0078] (Features and technical effects of displacement constraint device 1)

[0079] As described above, the displacement constraint device 1 of the present invention is used to constrain the displacement of an object, comprising: a base 10; a rotating claw 11, which is rotatable relative to the base 10 and is used to abut against the object to constrain its displacement; and an operating member 13, which is connected to the rotating claw 11 and can engage with the base 10. By operating the operating member 13, the engagement position of the operating member 13 relative to the base 10 is changed, and the rotating claw 11 can rotate between an upright state that constrains the displacement of the object and a flattened state that releases the constraint on the object.

[0080] According to the displacement constraint device 1 of the present invention, the displacement constraint function (rotating claw 11 is in an upright state) or the constraint release function (rotating claw 11 is in a flattened state) can be realized by controlling the engagement position of the operating member 13, making operation simple. Furthermore, when operating the displacement constraint device 1 of the present invention, the hand is positioned at the operating member 13 and will not come into contact with moving parts such as the rotating claw 11, thus avoiding injury from being pinched and ensuring high safety. Therefore, the present invention provides a displacement constraint device 1 that is simple to operate and highly safe.

[0081] In addition, the displacement constraint device 1 also includes a support member 12 connected to the rotating claw 11, and the support member 12 is mounted on the base 10 via a positioning shaft 21.

[0082] According to the displacement constraint device 1 of the present invention, the rotating claw 11 can be positioned relative to the base 10 by means of the support member 12.

[0083] In addition, the displacement constraint device 1 also includes a reset member 24, which is connected to the rotating claw 11 and the support member 12 via a follower shaft 22, and is used to rotate the rotating claw 11 and the support member 12.

[0084] According to the displacement constraint device 1 of the present invention, the rotating claw 11 and the support member 12 can be rotated relative to the base 10 by means of the reset member 24.

[0085] In addition, the reset member 24 is a torsion spring, with one end of the reset member 24 inserted into the rotating claw 11 and the other end of the reset member 24 placed on the support member 12.

[0086] According to the displacement constraint device 1 of the present invention, the rotating claw 11 and the support member 12 can be rotated relative to the base 10 by utilizing the restoring force of the torsion spring.

[0087] In addition, a guide groove 101 is provided on the side wall of the base 10, and an upright position slot 103 and a flat position slot 104 are provided on the bottom plate of the base 10. The operating member 13 and the rotating claw 11 are mounted on the guide groove 101 via a sliding pivot 23. The operating member 13 can switch between a position in which the rotating claw 11 is in an upright state when it is engaged with the upright position slot 103 and a position in which the rotating claw 11 is in a flat state when it is engaged with the flat position slot 104 by sliding along the guide groove 101.

[0088] According to the displacement constraint device 1 of the present invention, the upright state and flattened state of the rotating claw 11 can be easily switched by sliding the manipulator 13 along the guide groove 101.

[0089] In addition, the operating member 13 is provided with: a handle 131 for operation; and a limiting protrusion 133 for selectively engaging with one of the upright position slot 103 and the flat position slot 104 of the base 10.

[0090] According to the displacement constraint device 1 of the present invention, when the limiting protrusion 133 of the operating member 13 is placed into the vertical position slot 103, the base 10, the rotating claw 11, the support member 12 and the operating member 13 can form a stable triangular support structure, which can lock the rotating claw 11 in the vertical state. When the limiting protrusion 133 is placed into the flattening position slot 104, the rotating claw 11 can be locked in the flattening state. The state locking method is simple.

[0091] In addition, displacement restraint device 1 is used to be installed in the aircraft cargo hold to restrain the displacement of the container.

[0092] According to the displacement restraint device 1 of the present invention, the displacement restraint device 1 can be installed at a preset position on the aircraft cargo hold floor structure to restrain the displacement of the container, according to the specifications of the container.

[0093] (Modified Example)

[0094] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above embodiments.

[0095] In the above embodiments, the base 10, rotating claw 11, and operating member 13 are described as a single component. However, the present invention is not limited to this, and the base 10, rotating claw 11, and operating member 13 may also be a combination of multiple components.

[0096] In the above embodiment, the reset member 24 is described as being in the form of a torsion spring. However, the present invention is not limited to this. The reset member 24 can be used to drive the sliding shaft 23 to move and to lift the rotating claw 11.

[0097] While the structure and working principle of the present invention have been described above with reference to preferred embodiments, those skilled in the art should recognize that the above examples are merely illustrative and should not be construed as limiting the invention. Therefore, modifications and variations can be made to the invention within the spirit and scope of the claims, and all such modifications and variations will fall within the scope claimed by the claims.

Claims

1. A displacement constraint device for constraining the displacement of an object, characterized in that, The displacement constraint device includes: Base; A rotating claw, rotatable relative to the base, for contacting the object to constrain its displacement; and An operating element, which is connected to the rotating claw and can engage with the base, By operating the control member, the engagement position of the control member relative to the base can be changed, enabling the rotating pawl to rotate between an upright state that constrains the displacement of the object and a flattened state that releases the constraint on the object. The displacement constraint device further includes a support member connected to the rotating claw, the support member being mounted on the base via a positioning pivot. A guide groove is provided on the side wall of the base. The base plate is provided with an upright position slot and a flat position slot. The operating element and the rotating claw are mounted on the guide groove via a sliding shaft. The manipulator can switch between a position where the rotating claw is in an upright state when it is engaged with the upright position slot and a position where the rotating claw is in a flattened state when it is engaged with the flattened position slot by sliding along the guide groove.

2. The displacement constraint device as described in claim 1, characterized in that, The displacement constraint device further includes a reset member, which is connected to the rotating claw and the support member via a follower shaft, for causing the rotating claw and the support member to rotate.

3. The displacement constraint device as described in claim 2, characterized in that, The reset element is a torsion spring. One end of the reset member is inserted into the rotating claw, and the other end of the reset member is placed on the support member.

4. The displacement constraint device as described in claim 1, characterized in that, The operating element is provided with: Handles for operation; and A limiting protrusion for selectively engaging with one of the upright position slot and the flattened position slot of the base.

5. The displacement constraint device as described in any one of claims 1 to 4, characterized in that, The displacement restraint device is used to restrain the displacement of the container when installed inside the aircraft cargo hold.

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