An inertial control mechanism

Abstract

An inertial control mechanism relates to the field of control devices. The inertial control mechanism includes a mounting shaft, on which a bushing, a fixing sleeve and a slidable positioning sliding member are sleeved, the bushing is provided with an annular groove, the positioning sliding member has a retaining spring linked therewith and slidably engaged with the groove, the groove has a first slot, a second slot arranged axially along the mounting shaft, and a third slot and a fourth slot respectively located on both sides of one end of the second slot away from the first slot; the positioning sliding member is configured to move axially along the mounting shaft when subjected to force, and drive the retaining spring to move unidirectionally from the first slot to the second slot via the third slot, or drive the retaining spring to move unidirectionally from the second slot to the first slot via the fourth slot; the locking mechanism is used to prevent the positioning sliding member from driving the retaining spring to move from the second slot to the first slot or to release the blockage. The inertial control mechanism provided in this embodiment can drive the positioning sliding member to move axially to two preset positions under the push of inertial force or external force to realize the automatic control function.

Description

Technical Field

[0001] The present application relates to the field of control devices, and in particular, to an inertial control mechanism. Background Art

[0002] At present, the transfer equipment for personnel and materials carried by helicopters in my country is hung externally from the helicopter cargo hook for transfer. When the transfer equipment does not have the function of automatic deployment, it is necessary to hang the external hanging transfer equipment on the helicopter cargo hook when the helicopter takes off from the airport. After arriving at the transfer location, the equipment is lowered to the ground by hovering, so that personnel or goods can board the transfer equipment and then quickly transferred to other locations. During the empty flight, the transfer equipment in the external hanging state will significantly reduce the flight speed of the helicopter and affect the flight safety.

[0003] Therefore, a device capable of automatically controlling the deployment of helicopter external hanging transfer equipment is needed to solve the above problems. Summary of the invention

[0004] The purpose of the present application is to provide an inertial control mechanism, which can drive the positioning slide to move axially to two preset positions under the push of inertial force or external force, so as to facilitate the cooperation with helicopter hanging and transporting equipment to realize the automatic deployment function of the hanging and transporting equipment.

[0005] The embodiment of the present application is implemented as follows:

[0006] The embodiment of the present application provides an inertial control mechanism, which includes:

[0007] Install the shaft;

[0008] The inertia mechanism comprises a bushing fixedly sleeved on the installation shaft and a positioning sliding member fixedly sleeved and slidably sleeved on the installation shaft, the side wall of the bushing is provided with an annular groove, the positioning sliding member has a retaining spring linked thereto, one end of the retaining spring is slidably engaged in the groove, the groove has a first slot and a second slot arranged along the axial direction of the installation shaft, and a third slot and a fourth slot respectively located on both sides of one end of the second slot away from the first slot; the positioning sliding member is configured to move along the axial direction of the installation shaft when subjected to force, and drive the retaining spring to move unidirectionally from the first slot to the second slot via the third slot, or drive the retaining spring to move unidirectionally from the second slot to the first slot via the fourth slot;

[0009] The locking mechanism is used to prevent the positioning sliding member from driving the retaining spring to move from the second slot to the first slot or to release the blockage.

[0010] In some optional embodiments, a spring is also sleeved on the mounting shaft, and the two ends of the spring respectively press against the positioning sliding member and the fixed sleeve; the spring is used to push the retaining spring located in the third slot to move to the second slot, or to push the retaining spring located in the fourth slot to move to the first slot.

[0011] In some optional embodiments, the positioning sliding member includes a limit ring, a retaining spring and a protective cover which are sequentially slidably mounted on the bushing, and the limit ring, the retaining spring and the protective cover are interconnected in pairs to cooperate with each other.

[0012] In some optional embodiments, the groove is composed of two oppositely arranged J-shaped grooves with both ends connected to each other.

[0013] In some optional embodiments, the locking mechanism includes a rotary cover rotatably mounted on the mounting shaft, the positioning sliding member is provided with a protrusion, and the rotary cover is provided with at least one limiting groove corresponding to the protrusion; when the rotary cover rotates to cause the limiting groove to be offset or aligned with the protrusion, the rotary cover blocks the positioning sliding member from driving the retaining spring to move from the second slot to the first slot or to release the blockage.

[0014] In some optional embodiments, the rotary cover is connected to a limit plate, which has two notches, and the mounting shaft is also connected to a limit block that can be rotated to fit in or out of the notch; when the rotary cover is rotated to align the limit groove with or offset the protrusion, the limit block is rotated to fit into the two notches respectively.

[0015] In some optional embodiments, a connecting seat is fixedly sleeved on the mounting shaft, the connecting seat is connected to a clamping seat, the clamping seat is hinged to a limit block via a rotating shaft, and a torsion spring is sleeved on the rotating shaft for driving the limit block to fit into a notch.

[0016] In some optional embodiments, the groove is provided with a stepped surface which is narrow at the top and wide at the bottom to clamp the end of the retaining spring.

[0017] In some optional embodiments, the mounting shaft and the fixing sleeve are connected as a whole.

[0018] The beneficial effects of the present application are as follows: the inertial control mechanism provided in the present embodiment includes an installation shaft, an inertial mechanism and a locking mechanism; the inertial mechanism includes a bushing fixedly sleeved on the installation shaft and a positioning sliding member fixedly sleeved and slidably sleeved on the installation shaft, the side wall of the bushing is provided with an annular groove, the positioning sliding member has a retaining spring linked thereto, one end of the retaining spring is slidably engaged in the groove, the groove has a first slot and a second slot arranged axially along the installation shaft, and a third slot and a fourth slot respectively located on both sides of one end of the second slot away from the first slot; the positioning sliding member is configured to move axially along the installation shaft when subjected to force, and drive the retaining spring to move unidirectionally from the first slot to the second slot via the third slot, or drive the retaining spring to move unidirectionally from the second slot to the first slot via the fourth slot; the locking mechanism is used to prevent the positioning sliding member from driving the retaining spring to move from the second slot to the first slot or to release the blockage. The inertial control mechanism provided in this embodiment can drive the positioning sliding member to move axially to two preset positions under the push of inertial force or external force, thereby facilitating the cooperation with the helicopter hanging and transporting equipment to realize the automatic deployment function of the hanging and transporting equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of the inertial control mechanism provided by an embodiment of the present application from a first perspective;

[0021] Figure 2 A schematic diagram of the structure of the inertial control mechanism provided by an embodiment of the present application from a second perspective;

[0022] Figure 3 For along Figure 2 Section view of the AA section line;

[0023] Figure 4 For along Figure 2 Sectional view of the middle BB section line;

[0024] Figure 5 For along Figure 3 Sectional view of the CC section line;

[0025] Figure 6 A schematic diagram of the structure in which the positioning sliding member in the inertial control mechanism provided in an embodiment of the present application drives the clamping spring to move to the second slot;

[0026] Figure 7A schematic diagram of the structure in which a positioning sliding member in an inertial control mechanism provided in an embodiment of the present application drives a clamping spring to move to a first slot;

[0027] Figure 8 A schematic diagram of the structure of a groove in an inertial control mechanism provided in an embodiment of the present application.

[0028] Fig. 9 A schematic diagram of the structure of the inertial control mechanism provided in an embodiment of the present application used in conjunction with a transfer device.

[0029] In the figure: 10, support column; 20, support tube; 30, wire rope; 40, mesh; 50, hook; 100, installation shaft; 200, inertial mechanism; 210, bushing; 220, fixing sleeve; 230, positioning sliding member; 240, spring; 250, groove; 251, first slot; 252, second slot; 253, third slot; 254, fourth slot; 260, retaining spring; 270, limiting ring; 271, flange; 280, protective cover; 290, protrusion; 300, locking mechanism; 310, rotary cover; 320, limiting slot; 330, limiting plate; 340, notch; 350, limiting block; 360, connecting seat; 370, clamping seat; 380, rotating shaft; 390, torsion spring; 400, lifting ring. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] The features and performance of the inertial control mechanism of the present application are further described in detail below in conjunction with the embodiments.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, an embodiment of the present application provides an inertial control mechanism, which includes a mounting shaft 100 and an inertial mechanism 200 and a locking mechanism 300 connected to the mounting shaft 100;

[0039] Among them, the inertial mechanism 200 includes a bushing 210 and a fixed sleeve 220 fixedly mounted on the installation shaft 100, a sliding sleeve on the installation shaft 100 is provided with a positioning sliding member 230 and a spring 240, the positioning sliding member 230 includes a limiting ring 270, a retaining spring 260 and a protective cover 280 which are sequentially slidably mounted on the bushing 210, the limiting ring 270, the retaining spring 260 and the protective cover 280 are connected in pairs by screws for linkage cooperation, a bump 290 is provided on the side of the limiting ring 270 away from the retaining spring 260, and the edge of the limiting ring 270 protrudes toward the side close to the retaining spring 260 to form a flange 271, and the two ends of the spring 240 press the limiting ring 270 and the fixed sleeve 220 respectively, and a side wall of the bushing 210 is provided with an annular groove 250, and the shape of the groove 250 is composed of two J-shaped grooves arranged opposite to each other at both ends, and the groove 250 has an axial arrangement along the installation shaft 100. The first slot 251 and the second slot 252 are arranged, and the third slot 253 and the fourth slot 254 are respectively located on both sides of the second slot 252 away from the first slot 251. One end of the retaining spring 260 is slidably engaged in the groove 250. The groove 250 is provided with a step surface that is narrow at the top and wide at the bottom to engage the end of the retaining spring 260. When the positioning sliding member 230 moves axially along the installation shaft 100, the retaining spring 260 is driven to move from the first slot 251 to the third slot 253 and compress the spring 240. Then the spring 240 pushes the retaining spring 260 from the third slot 253 to the second slot 252, or drives the retaining spring 260 to move from the second slot 252 to the fourth slot 254 and compresses the spring 240. Then the spring 240 pushes the retaining spring 260 from the fourth slot 254 to the first slot 251. The end of the installation shaft 100 away from the support column 10 is connected with a lifting ring 400.

[0040] The locking mechanism 300 includes a rotary cover 310 rotatably sleeved on the installation shaft 100, a limiting plate 330 connected to the rotary cover 310, and a connecting seat 360 fixedly sleeved on the installation shaft 100. The locking mechanism 300 is arranged on the side of the limiting ring 270 away from the retaining spring 260. The rotary cover 310 is provided with a limiting groove 320 corresponding to the protrusion 290. When the rotary cover 310 rotates to make the limiting groove 320 staggered or aligned with the protrusion 290, the rotary cover 310 blocks the movement of the protrusion 290 of the positioning sliding member 230, so as to prevent the positioning sliding member 230 from driving the retaining spring 260 to move from the fourth slot 254 to the first slot 251, or to make the positioning sliding member 230 move to drive the protrusion 290 to enter the limiting groove 320, and The positioning sliding member 230 drives the retaining spring 260 to move from the fourth slot 254 to the first slot 251; the limiting plate 330 is provided with two notches 340 arranged at intervals along the circumferential direction of the installation axis 100, the connecting seat 360 is connected to the clamping seat 370, the clamping seat 370 is hinged with a limiting block 350 that can be rotated to snap into or out of the notch 340 through the rotating shaft 380, and the rotating shaft 380 is sleeved with a torsion spring 390, which is used to drive the rotating shaft 380 to rotate so as to drive the limiting block 350 to snap into a notch 340, and when the rotary cover 310 rotates to align the limiting groove 320 with the protrusion 290 or to make the limiting groove 320 staggered from the protrusion 290 and move to the preset position, the limiting block 350 rotates and snaps into the two notches 340 respectively.

[0041] The inertial control mechanism provided in this embodiment can drive the positioning slide 230 to move axially to two preset positions and lock under the push of inertial force or external force, thereby facilitating the cooperation with the helicopter hanging and transporting equipment to realize the automatic deployment function of the hanging and transporting equipment.

[0042] The working principle of the inertial control mechanism is:

[0043] The operator first adjusts the inertial control mechanism to the use state. The operator pushes the positioning sliding member 230 along the installation shaft 100 to move in the direction close to the fixing sleeve 220. When the positioning sliding member 230 moves, the spring 240 is compressed, and the end of the retaining spring 260 is driven to move along the groove 250 from the first groove position 251 to the third groove position 253. When the operator stops pushing the positioning sliding member 230, the compression elastic force of the spring 240 pushes the positioning sliding member 230 to move in the opposite direction, and the positioning sliding member 230 drives the end of the retaining spring 260 to move along the groove 250 from the third groove position 253 to the second groove position 252 for locking. At this time, the position of the positioning sliding member 230 is limited by the retaining spring 260, so that the positioning sliding member 230 moves to a preset axial position along the installation shaft 100, and the inertial control mechanism is in the inertial control use state.

[0044] At this time, the operator can control the locking mechanism 300 to lock the inertial mechanism 200 to prevent the inertial mechanism 200 from moving at will, that is, the operator overcomes the elastic force of the torsion spring 390 to rotate the limit block 350, so that the limit block 350 disengages from the notch 340 on the limit plate 330 to release the lock of the limit plate 330, and then rotates the rotary cover 310 to make the limit groove 320 set on the rotary cover 310 staggered from the protrusion 290, so that the other notch 340 on the limit plate 330 connected to the rotary cover 310 moves to the corresponding limit block 350, and stops rotating the limit block 350 to make the torsion spring 390 The elastic driving shaft 380 drives the limit block 350 to rotate and engage in the notch 340 to lock the position of the rotary cover 310 and the limit plate 330, and keep the limit groove 320 of the rotary cover 310 offset from the protrusion 290. At this time, the locking mechanism 300 locks the inertial mechanism 200. Even if the inertial mechanism 200 is subjected to the axial inertial force or thrust along the installation shaft 100, the obstruction of the rotary cover 310 on the protrusion 290 on the limit ring 270 will also prevent the positioning slide 230 from moving away from the fixed sleeve 220, thereby avoiding the inertial mechanism 200 from receiving external inertial force and causing erroneous operation during transportation.

[0045] When the inertia mechanism 200 needs to receive the external inertia force for inertia control, the locking mechanism 300 is controlled to unlock the inertia mechanism 200. At this time, the limit block 350 is manually rotated to overcome the elastic force of the torsion spring 390, so that the limit block 350 is disengaged from the notch 340 on the limit plate 330 to unlock the limit plate 330. Then, the rotary cover 310 is rotated to align the limit groove 320 provided on the rotary cover 310 with the protrusion 290, so that the other notch 340 on the limit plate 330 connected to the rotary cover 310 moves to the corresponding limit block 350, and the rotation of the limit block 350 is stopped so that the elastic force of the torsion spring 390 drives the rotating shaft 380 to drive the limit block 350 to rotate and snap into the notch 340 to lock the position of the rotary cover 310 and the limit plate 330, and keep the limit groove 320 of the rotary cover 310 aligned with the protrusion 290.

[0046] When the inertial mechanism 200 has an axial inertial force along the installation shaft 100, the inertial force drives the positioning slide 230 to move toward the fixed sleeve 220. When the positioning slide 230 moves, the spring 240 is compressed, and the end of the retaining spring 260 is driven to move along the groove 250 from the second slot 252 to the fourth slot 254. When the inertial force disappears, the compression elastic force of the spring 240 pushes the positioning slide 230 to move in the opposite direction, and the positioning slide 230 drives the end of the retaining spring 260 to move along the groove 250 from the fourth slot 254 to the first slot 251 to stop, thereby driving the positioning slide 230 to move to the second preset axial position along the installation shaft 100 through the inertial force, thereby completing the inertial sensing control.

[0047] like Fig. 9As shown, the inertial control mechanism provided in this embodiment can be used to cooperate with a helicopter and a rapid transfer platform to quickly deploy the rapid transfer platform, which includes a support column 10, five support tubes 20 arranged at intervals along the circumference of the support column 10, and five steel wire ropes 30 corresponding to the support tubes 20. One end of each support tube 20 is hinged to the support column 10, and the support tube 20 can be retracted or opened relative to the support column 10. A mesh surface 40 is connected between adjacent support tubes 20; both ends of each steel wire rope 30 are connected to the corresponding support tube 20 and the support column 10, and the end of the support tube 20 away from the support column 10 is connected to the corresponding steel wire rope 30. The support column 10 is provided with ten The hooks 50 are arranged at intervals along the circumference thereof, and the mounting shaft 100 of the inertial control mechanism is coaxially connected with the support column 10. When the positioning sliding member 230 of the inertial control mechanism moves along the mounting shaft 100 to the first preset axial position, it drives the limit ring 270 to move, and uses the flange 271 formed by the edge of the limit ring 270 protruding toward the side of the retaining spring 260 to limit the end position of each support tube 20 retracted relative to the support column 10. When the positioning sliding member 230 of the inertial control mechanism moves along the mounting shaft 100 to the second preset axial position, it drives the limit ring 270 to move to release the limitation on the end position of each support tube 20 retracted relative to the support column 10.

[0048] In other optional embodiments, the fixing sleeve 220 may also be fixedly sleeved on the mounting shaft 100. In other optional embodiments, the spring 240 may not be provided.

[0049] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. An inertial control mechanism, characterized in that: It includes: Install the shaft; The inertia mechanism comprises a bushing fixedly sleeved on the installation shaft and a positioning sliding member fixedly sleeved and slidably sleeved on the installation shaft, the side wall of the bushing is provided with an annular groove, the positioning sliding member has a retaining spring linked thereto, one end of the retaining spring is slidably engaged in the groove, the groove has a first slot and a second slot arranged axially along the installation shaft, and a third slot and a fourth slot respectively located on both sides of one end of the second slot away from the first slot; the positioning sliding member is configured to move axially along the installation shaft when subjected to force, and drive the retaining spring to move unidirectionally from the first slot to the second slot via the third slot, or drive the retaining spring to move unidirectionally from the second slot to the first slot via the fourth slot; A locking mechanism, wherein the locking mechanism is used to prevent the positioning sliding member from driving the retaining spring to move from the second slot to the first slot or to release the blocking.

2. The inertial control mechanism according to claim 1, characterized in that: A spring is also sleeved on the installation shaft, and the two ends of the spring respectively press against the positioning sliding member and the fixing sleeve; the spring is used to push the retaining spring located in the third slot to move to the second slot, or to push the retaining spring located in the fourth slot to move to the first slot.

3. The inertial control mechanism according to claim 1, characterized in that: The positioning sliding member comprises a limiting ring, a retaining spring and a protective cover which are sequentially slidably sleeved on the bushing, and the limiting ring, the retaining spring and the protective cover are mutually connected in pairs for linkage cooperation.

4. The inertial control mechanism according to claim 1, characterized in that: The groove is composed of two J-shaped grooves arranged opposite to each other with both ends connected to each other.

5. The inertial control mechanism according to claim 1, characterized in that: The locking mechanism includes a rotary cover rotatably sleeved on the mounting shaft, the positioning sliding member is provided with a protrusion, and the rotary cover is provided with at least one limiting groove corresponding to the protrusion; when the rotary cover is rotated to make the limiting groove staggered or aligned with the protrusion, the rotary cover blocks the positioning sliding member from driving the retaining spring to move from the second slot to the first slot or release the blockage.

6. The inertial control mechanism according to claim 5, characterized in that: The rotary cover is connected to a limit plate, which is provided with two notches, and the mounting shaft is also connected to a limit block which can be rotated to fit into or out of the notches; when the rotary cover is rotated to align the limit groove with or stagger the protrusion, the limit block is rotated to fit into the two notches respectively.

7. The inertial control mechanism according to claim 6, characterized in that: A connecting seat is fixedly sleeved on the installation shaft, the connecting seat is connected to a clamping seat, the clamping seat is hinged with the limit block through a rotating shaft, and a torsion spring for driving the limit block to clamp into one of the notches is sleeved on the rotating shaft.

8. The inertial control mechanism according to claim 1, characterized in that: The groove is provided with a step surface which is narrow at the top and wide at the bottom to clamp the end of the clamping spring.

9. The inertial control mechanism according to claim 1, characterized in that: The installation shaft and the fixing sleeve are connected into a whole.

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