Helicopter sliding door limiting and stopping device
By designing a helicopter sliding door limit safety device, the problem of sliding door cannot be fixed and used safety is solved, and the three-way limit of the hatch door is realized, ensuring safety in flight missions.
Patent Information
- Application Number
- CN202411434396.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-01-03
AI Technical Summary
The helicopter sliding door cannot be fixed during flight missions, which affects the mission execution and safety of hatch door use, especially when the sliding door and the slide rail connection fail.
A helicopter sliding door limit safety device is designed, including upper limit fixing assembly, sliding door end limit and sliding door limit linkage mechanism to realize the limit in the open state of the hatch door and provide the sliding door failure. Three-way limits (X, Y, Z) to ensure safety.
Effectively realize the three-way limit of the sliding door, ensuring the safety of the hatch door when it is opened and closed, especially when the connection between the sliding door and the slide rail is invalid, and it provides safety guarantees to avoid falling and using the hatch door. Sexual impact.
Smart Images
Figure CN119239914A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of functional structure design, and in particular relates to a position limiting and stopping device for a helicopter sliding door. Background Art
[0002] The helicopter sliding door is located in the helicopter cabin, which can provide passengers with a passage in and out of the cabin. It can be opened and closed along the sliding rail on the fuselage, providing a certain amount of maneuvering space. When the helicopter needs to open the sliding door to perform a flight mission, if there is no limit device, the door will not be fixed, thus affecting the mission execution. If the connection between the sliding door and the sliding rail fails, it will affect the safety of the door.
[0003] In order to meet the needs of use in complex situations, the present invention proposes a helicopter sliding door limit safety device, which can achieve limit when the cabin door is open and provide a guarantee for the failure safety of the sliding door. Summary of the invention
[0004] In order to solve the above technical problems, the present invention proposes a helicopter sliding door limit safety device, which can achieve limit when the door is open and provide a guarantee for the failure safety of the sliding door. The technical solution is as follows:
[0005] A helicopter sliding door limit stop device comprises: a first upper limit fixing assembly 1, a second upper limit fixing assembly 2, a third upper limit fixing assembly 5, a fourth upper limit fixing assembly 6, an upper limit member 3 at the sliding door end, a lower limit member 4 at the sliding door end and a sliding door limit linkage mechanism 7;
[0006] The first upper limit fixing assembly 1 is connected to the upper front part of the sliding door frame, the second upper limit fixing assembly 2 is connected to the lower front part of the sliding door frame, the third upper limit fixing assembly 5 is connected to the upper rear part of the fuselage, the fourth upper limit fixing assembly 6 is connected to the lower rear part of the fuselage, the upper limit member 3 at the sliding door end is connected to the upper part of the sliding door frame, and the lower limit assembly 4 at the sliding door end is connected to the sliding door limit linkage mechanism 7.
[0007] When the sliding door is closed, the upper limit fixing component 1 of the first machine contacts the upper limit fixing component 3 of the sliding door end to limit the upper limit fixing component 3 of the sliding door end in the Y direction and the Z direction; the upper limit fixing component 2 of the second machine contacts the lower limit fixing component 4 of the sliding door end to limit the lower limit fixing component 4 of the sliding door end in the Y direction. When the sliding door is closed, the lack of limit in the Y direction and the Z direction caused by the failure of the supporting wall connecting the sliding door and the slide rail will be supplemented by the contact between the upper limit fixing component 1 of the first machine and the upper limit fixing component 3 of the sliding door end, and the contact between the upper limit fixing component 2 of the second machine and the lower limit fixing component 4 of the sliding door end, providing a safety guarantee for the failure safety of the sliding door.
[0008] When the sliding door is opened, the limit lock hook of the sliding door limit linkage mechanism 7 first collides with the fourth upper limit assembly 6, and the closing force of the sliding door lock handle overcomes the torsion spring force of the sliding door limit linkage mechanism 7, so that the limit lock hook is lifted, so that the upper limit assembly 3 of the sliding door end contacts the third upper limit fixing assembly 5, and the lower limit assembly 4 of the sliding door end contacts the fourth upper limit fixing assembly 6, so as to achieve the limit in the Y direction and the Z direction. When the lower limit assembly 4 of the sliding door end completely contacts the upper fourth upper limit fixing assembly 6, the limit lock hook of the sliding door limit linkage mechanism 7 will fall again, clamp the fourth upper limit fixing assembly 6, and achieve the limit in the X direction, thereby achieving the limit in the X, Y, and Z directions of the sliding door. The lack of Y- and Z-direction limits caused by the failure of the supporting wall connecting the sliding door and the sliding rail will be supplemented by the limits of the third machine upper limit fixing component 5 and the upper limit component 3 at the sliding door end, and the fourth machine upper limit fixing component 6 and the lower limit component 4 at the sliding door end, providing safety guarantee for the failure safety of the sliding door.
[0009] Among them, the X direction is the heading, the Y direction is the lateral direction, and the Z direction is the vertical direction.
[0010] Optionally, the first upper limit fixing assembly 1 includes: a gasket 11, a toothed plate 12, and a limit support 13;
[0011] The gasket 11, the toothed plate 12, and the limit support 13 are connected to the sliding door frame 15 by bolts 14 in sequence, and the toothed plate 12 and the limit support 13 are meshed;
[0012] By adjusting the number of gaskets 11, the installation position of the upper limit fixing component 1 of the first machine can be adjusted in the Y direction. By adjusting the meshing tooth position of the toothed plate 12 and the limit support 13, the installation position of the upper limit fixing component 1 of the first machine can be adjusted in the X direction. It can adapt to the influence of structural deformation after delivery and ensure accurate positioning.
[0013] Optionally, the second upper limit fixing assembly 2 includes: a gasket 21, a limit support 22;
[0014] The gasket 21 and the limit support 22 are connected to the sliding door frame 15 through bolts 23. The number of the gaskets 21 can be adjusted to achieve the Y-direction adjustment of the installation position of the second upper limit fixing assembly 2.
[0015] Optionally, the third machine upper limit fixing component 5 and the fourth machine upper limit fixing component 6 are both of a "J"-shaped structure and are fixed to the rear end of the fuselage by rivets. The installation positions of the third machine upper limit fixing component 5 and the fourth machine upper limit fixing component 6 need to be assembled last. When the cabin door is open, the insert of the upper limit fixing component 3 at the sliding door end is inserted into the third machine upper limit fixing component 5, and the insert of the lower limit fixing component 4 at the sliding door end is inserted into the fourth machine upper limit fixing component 6, which can realize the Y-direction limitation of the cabin door assembly, and cooperate with the limit lock hook of the sliding door limit linkage mechanism 7 to realize the X-direction limitation.
[0016] Optionally, the upper limit assembly 3 of the sliding door end includes: an upper limit pin 31, an insert 32 and a sliding door frame 34.
[0017] The upper stop pin 31 and the insert 32 are mounted on the sliding door frame 34 by bolts 33;
[0018] When the door is closed, the upper limit pin 31 of the upper limit mechanism 3 at the sliding door end contacts the first upper limit fixing assembly 1, thereby limiting the upper limit assembly 3 at the sliding door end in the Y and Z directions. When the door is open, the insert 32 of the upper limit mechanism 3 at the sliding door end contacts the third upper limit fixing assembly 5, thereby limiting the upper limit assembly 3 at the sliding door end in the Y and Z directions.
[0019] Optionally, the lower limit assembly 4 of the sliding door end includes: a lower limit pin 41, an insert 42, and an insert mounting bolt 43.
[0020] The lower limit pin 41 and the insert 42 are mounted on the door frame 34 through the lower limit pin mounting bolt 44, and the insert 42 is mounted on the sliding door limit linkage mechanism 7 through the insert mounting bolt 43;
[0021] When the cabin door is closed, the lower limit pin 41 of the lower limit mechanism 4 at the sliding door end contacts the second upper limit fixing component 2, thereby realizing the Y-direction limitation of the lower limit component 4 at the sliding door end; when the cabin door is open, the insert 42 of the lower limit mechanism 4 at the sliding door end contacts the fourth upper limit fixing component 6, thereby realizing the Y-direction and Z-direction limitation of the upper limit component 4 at the sliding door end.
[0022] Optionally, the sliding door limit linkage mechanism 7 includes: a limit lock hook 71, a pull rod 72, a sliding door lock handle 73, an actuating rod 74, a torsion spring 75, and a cross bar 77;
[0023] The limit lock hook 71 is connected to the cross bar 77, one end of the cross bar 77 is connected to the lower limit assembly 4 of the sliding door end through a bolt 43, and the other end is connected to the actuating rod 74 through a bolt 76; one end of the torsion spring 75 is clamped on the limit lock hook 71, and the other end is clamped on the cross bar 77; the action force of the torsion spring 75 fixes the limit lock hook 71 at a certain position; one end of the pull rod 72 is screwed on the actuating rod 74 through a bolt 78, and the other end is connected to the sliding door lock handle 73.
[0024] When the sliding door is opened, the sliding door lock handle 73 is rotated, and the pull rod 72 drives the actuating rod 74 to rotate. Since the other end of the actuating rod 74 is connected to the cross bar 77, when the force on the actuating rod 74 is greater than the force of the torsion spring 75, the limit lock hook 71 will rotate around the cross bar 77 to overcome the friction between the limit lock hook 71 and the fourth machine limit fixing assembly 6, so as to limit the sliding door in the X direction.
[0025] When executing the sliding door closing operation, the cabin door lock handle 73 is turned, and the pull rod 72 drives the actuating rod 74 to rotate. When the force on the actuating rod 74 is greater than the force of the torsion spring 75, the limit lock hook 71 rotates around the cross bar 77, overcoming the friction between the limit lock hook 71 and the fourth machine limit fixing assembly 6, thereby realizing the X-axis limit release of the sliding door.
[0026] The beneficial effects of the present invention are at least:
[0027] A helicopter sliding door limit safety device provided by the present invention mainly includes upper limit fixing components 1, 2 (effective when the sliding door is closed), upper limit fixing components 5, 6 (effective when the sliding door is opened), an upper limit member 3 at the sliding door end, a lower limit member 4 at the sliding door end and a sliding door limit linkage mechanism 7, which can realize the limit when the cabin door is opened and provide a guarantee for the failure safety of the sliding door. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a schematic diagram of the structure of the helicopter sliding door limit safety device;
[0029] Figure 2 This is a schematic diagram of the structure of the first machine limit assembly;
[0030] Figure 3 This is a schematic diagram of the structure of the upper limit fixing component of the second machine;
[0031] Figure 4 This is a schematic diagram of the structure of the upper limit fixing component of the third machine;
[0032] Figure 5 It is a schematic diagram of the structure of the upper limit assembly of the sliding door end;
[0033] Figure 6 It is a schematic diagram of the structure of the lower limit assembly of the sliding door end;
[0034] Figure 7 It is a schematic diagram of the structure of the sliding door limit linkage mechanism.
[0035] Among them, 1-the upper limit fixing assembly of the first machine; 2-the upper limit fixing assembly of the second machine; 3-the upper limit piece at the sliding door end; 4-the lower limit assembly at the sliding door end; 5-the upper limit fixing assembly of the third machine; 6-the upper limit fixing assembly of the fourth machine; 7-the sliding door limit linkage mechanism; 11-gasket; 12-toothed plate; 13-limit support; 14-bolt; 15-sliding door frame; 21-gasket; 22-limit support; 23-bolt; 31-upper limit pin; 32-insert; 33-bolt; 34-sliding door frame; 41-lower limit pin; 42-insert; 43-insert mounting bolt; 44-lower limit pin mounting bolt; 71-limit lock hook; 72-pull rod; 73-sliding door lock handle; 74-actuating rod; 75-torsion spring; 76-bolt; 77-cross bar; 78-bolt. DETAILED DESCRIPTION
[0036] The present invention is further described in detail below through specific implementation modes and drawings.
[0037] An embodiment of the present invention provides a helicopter sliding door limit safety device, comprising: a first upper limit fixing assembly 1, a second upper limit fixing assembly 2, a third upper limit fixing assembly 5, a fourth upper limit fixing assembly 6, an upper limit member 3 at the sliding door end, a lower limit member 4 at the sliding door end, and a sliding door limit linkage mechanism 7.
[0038] The first upper limit fixing assembly 1 is connected to the upper front part of the sliding door frame by bolts, the second upper limit fixing assembly 2 is connected to the lower part of the sliding door frame by bolts, the third upper limit fixing assembly 5 is connected to the upper rear part of the fuselage by rivets, the fourth upper limit fixing assembly 6 is connected to the lower rear part of the fuselage by rivets, the upper limit member 3 of the sliding door end is connected to the upper part of the sliding door frame by bolts, and the lower limit member 4 of the sliding door end is connected to the sliding door limit linkage mechanism 7 by bolts. The position relationship of the components is shown in FIG. Figure 1 .
[0039] The working principle is as follows: when the sliding door is closed, the upper limit fixing component 1 of the first machine contacts the upper limit fixing component 3 of the sliding door end to achieve the limit in the Y direction and the Z direction of the upper limit fixing component 3 of the sliding door end; the upper limit fixing component 2 of the second machine contacts the lower limit fixing component 4 of the sliding door end to achieve the limit in the Y direction of the lower limit fixing component 4 of the sliding door end. When the sliding door is closed, the lack of limit in the Y direction and the Z direction caused by the failure of the supporting wall connecting the sliding door and the slide rail will be supplemented by the connection between the upper limit fixing component 1 of the first machine and the upper limit fixing component 3 of the sliding door end, and the upper limit fixing component 2 of the second machine and the lower limit fixing component 4 of the sliding door end, so as to provide safety guarantee for the failure safety of the sliding door.
[0040] When the sliding door is opened, the limit lock hook of the sliding door limit linkage mechanism 7 first collides with the upper limit assembly 6, and the closing force of the sliding door lock overcomes the torsion spring force of the sliding door limit linkage mechanism 7, so that the limit lock hook is lifted, so that the upper limit assembly 3 at the sliding door end contacts the third upper limit fixing assembly 5, and the lower limit assembly 4 at the sliding door end contacts the fourth upper limit fixing assembly 6, so as to achieve the limit in the Y direction and the Z direction. When the lower limit assembly 4 at the sliding door end completely contacts the fourth upper limit fixing assembly 6, the limit lock hook of the sliding door limit linkage mechanism 7 will fall again, clamp the fourth upper limit fixing assembly 6, and achieve the limit in the X direction, thereby achieving the limit in the X, Y, and Z directions of the sliding door. The lack of Y- and Z-direction limits caused by the failure of the supporting wall connecting the sliding door and the sliding rail will be supplemented by the third machine upper limit fixing component 5 and the upper limit component 3 at the sliding door end, and the fourth machine upper limit fixing component 6 and the lower limit component 4 at the sliding door end, providing safety guarantee for the failure safety of the sliding door.
[0041] In this embodiment, the X direction is the heading direction, the Y direction is the lateral direction, and the Z direction is the longitudinal direction.
[0042] See also Figure 2 The first upper limit fixing assembly 1 includes: a gasket 11, a toothed plate 12, a limit support 13, and a bolt 14; the gasket 11, the toothed plate 12, and the limit support 13 are sequentially connected to the sliding door frame 15 through the bolt 14, and the toothed plate 12 and the limit support 13 are meshed.
[0043] By adjusting the number of gaskets 11, the installation position can be adjusted in the Y direction, and by adjusting the meshing tooth position of the toothed plate 12 and the limit support 13, the installation position can be adjusted in the X direction; it can adapt to the influence of structural deformation after delivery and ensure accurate positioning.
[0044] See also Figure 3 The second upper limit fixing assembly 2 includes: a gasket 21, a limit support 22, and a bolt 23; the gasket 21 and the limit support 22 are connected to the sliding door frame 15 through the bolt 23, and the Y-axis adjustment of the installation position can be achieved by adjusting the number of gaskets 21.
[0045] See also Figure 4 The third upper limit fixing component 5 and the fourth upper limit fixing component 6 are both "J" shaped parts, which are directly fixed at the rear end of the fuselage by rivets. The installation position needs to be assembled last. When the cabin door is open, the upper limit component 3 at the sliding door end is inserted into the third upper limit fixing component 5, and the lower limit component 4 at the sliding door end is inserted into the fourth upper limit fixing component 6, which can realize the Y-direction limit of the cabin door assembly, and cooperate with the limit lock hook of the sliding door limit linkage mechanism 7 to realize the X-direction limit.
[0046] See also Figure 5The upper limit assembly 3 at the sliding door end includes: an upper limit pin 31, an insert 32, a bolt 33 and a sliding door frame 34, wherein the upper limit pin 31 and the insert 32 are mounted on the sliding door frame 34 by the bolt 33. When the door is closed, the upper limit pin 31 of the upper limit mechanism 3 at the sliding door end contacts the first upper limit fixing assembly 1 to limit the upper limit assembly 3 at the sliding door end in the Y and Z directions. When the door is open, the insert 32 of the upper limit mechanism 3 at the sliding door end contacts the third upper limit fixing assembly 5 to limit the upper limit assembly 3 at the sliding door end in the Y and Z directions. When the sliding door rocker arm connection fails, the limit here can provide a guarantee for the failure safety of the sliding door and prevent it from falling.
[0047] See also Figure 6 The lower limit assembly 4 at the sliding door end includes: a lower limit pin 41, an insert 42, an insert mounting bolt 43 and a lower limit pin mounting bolt 44, wherein the lower limit pin 41 and the insert 42 are mounted on the door frame 34 through the lower limit pin mounting bolt 44, and the insert 42 is mounted on the sliding door limit linkage mechanism 7 through the insert mounting bolt 43. When the door is closed, the lower limit pin 41 of the lower limit mechanism 4 at the sliding door end contacts the second upper limit fixing assembly 2, which can achieve the Y-direction limit of the lower limit assembly 4 at the sliding door end. When the door is open, the insert 42 of the lower limit mechanism 4 at the sliding door end contacts the fourth upper limit fixing assembly 6, which can achieve the Y-direction and Z-direction limit of the upper limit assembly 4 at the sliding door end. When the sliding door rocker arm connection fails, the limit here can provide a guarantee for the failure safety of the sliding door and prevent it from falling.
[0048] See also Figure 7 The sliding door limit linkage mechanism 7 includes: a limit lock hook 71, a pull rod 72, a sliding door lock handle 73, an actuating rod 74, a torsion spring 75, a bolt 76, a cross bar 77 and a bolt 78.
[0049] The limit lock hook 71 is connected to the cross bar 77. One end of the cross bar 77 is connected to the lower limit assembly 4 of the sliding door end through the bolt 43, and the other end is connected to the actuating rod 74 through the bolt 76. One end of the torsion spring 75 is clamped on the limit lock hook 71 at the sliding door end, and the other end is clamped on the cross bar 77. The force of the torsion spring 75 fixes the limit lock hook 71 at a certain position. One end of the pull rod 72 is screwed on the actuating rod 74 through the bolt 78, and the other end is connected to the sliding door lock handle 73.
[0050] When the sliding door is opened, the sliding door lock handle 73 is rotated, and the actuating rod 74 is driven to rotate through the pull rod 72. The other end of the actuating rod 74 is connected to the cross bar 77. When the force acting on the actuating rod 74 is greater than the force acting on the torsion spring 75, the limit lock hook 71 rotates around the cross bar 77, overcoming the friction between the fourth machine limit fixing assembly 6, and realizing the X-axis limitation of the sliding door.
[0051] When the closing operation is performed, the cabin door lock handle 73 is rotated, and the actuating rod 74 is driven to rotate through the pull rod 72. The other end of the actuating rod 74 is connected to the cross bar 77. When the force acting on the actuating rod 74 is greater than the force acting on the torsion spring 75, the limit lock hook 71 rotates around the cross bar 77, overcoming the friction between the fourth machine limit fixing assembly 6, and realizing the X-axis limit release of the sliding door.
[0052] The above only expresses the implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. In addition, the parts not detailed in the present invention are all conventional technologies.
Claims
1. A helicopter sliding door limit stop device, characterized in that: include: A first upper limit fixing assembly, a second upper limit fixing assembly, a third upper limit fixing assembly, a fourth upper limit fixing assembly, an upper limit member at the sliding door end, a lower limit member at the sliding door end, and a sliding door limit linkage mechanism; The first upper limit fixing assembly is connected to the upper front part of the sliding door frame, the second upper limit fixing assembly is connected to the lower front part of the sliding door frame, the third upper limit fixing assembly is connected to the upper rear part of the fuselage, the fourth upper limit fixing assembly is connected to the lower rear part of the fuselage, the upper limit piece at the sliding door end is connected to the upper part of the sliding door frame, and the lower limit assembly at the sliding door end is connected to the sliding door limit linkage mechanism.
2. The device according to claim 1, characterized in that The first machine limit fixing assembly includes: a first gasket, a toothed plate, and a limit support; The first gasket, the toothed plate and the limit support are sequentially arranged on the sliding door frame, and the toothed plate is meshed with the limit support.
3. The device according to claim 1, characterized in that The second machine limit fixing assembly includes: a second gasket and a limit support; The second gasket and the limit support are arranged on the sliding door frame.
4. The device according to claim 1, characterized in that The upper limit fixing assembly on the third machine and the upper limit fixing assembly on the fourth machine are both of a "J"-shaped structure and are fixed at the rear end of the fuselage. When the cabin door is open, the insert of the upper limit fixing assembly on the sliding door end is inserted into the upper limit fixing assembly on the third machine, and the lower limit fixing assembly on the sliding door end is inserted into the upper limit fixing assembly on the fourth machine to achieve the Y-direction limitation of the cabin door assembly, and the X-direction limitation is achieved in conjunction with the limit lock hook of the sliding door limit linkage mechanism.
5. The device according to claim 1, characterized in that The upper limit assembly of the sliding door end comprises: an upper limit pin, an insert and a sliding door frame, wherein the upper limit pin and the insert are arranged on the sliding door frame; When the cabin door is closed, the upper limit pin of the upper limit mechanism at the sliding door end contacts the upper limit fixing assembly of the first machine, limiting the upper limit assembly of the sliding door end in the Y and Z directions; when the cabin door is open, the insert of the upper limit mechanism at the sliding door end contacts the upper limit fixing assembly of the third machine, limiting the upper limit assembly of the sliding door end in the Y and Z directions.
6. The device according to claim 5, characterized in that The lower limit assembly of the sliding door end includes: a lower limit pin, an insert, and an insert mounting bolt. Wherein, the lower limit pin and the insert are mounted on the door frame through the lower limit pin mounting bolts, and the insert is mounted on the sliding door limit linkage mechanism through the insert mounting bolts; When the cabin door is closed, the lower limit pin of the lower limit mechanism at the sliding door end contacts the second upper limit fixing assembly to limit the lower limit assembly at the sliding door end in the Y direction; when the cabin door is open, the insert of the lower limit mechanism at the sliding door end contacts the fourth upper limit fixing assembly to limit the upper limit assembly at the sliding door end in the Y and Z directions.
7. The device according to claim 1, characterized in that The sliding door limit linkage mechanism includes: a limit lock hook, a pull rod, a sliding door lock handle, an actuating rod, a torsion spring, and a cross bar; The limit lock hook is connected to the cross bar, one end of the cross bar is connected to the lower limit assembly of the sliding door end, and the other end is connected to the actuating rod; one end of the torsion spring is clamped on the limit lock hook, and the other end is clamped on the cross bar; the force of the torsion spring fixes the limit lock hook in a certain position; one end of the pull rod is screwed on the actuating rod, and the other end is connected to the sliding door lock handle.
8. The device according to claim 7, characterized in that When the sliding door is opened, the sliding door lock handle is turned, and the pull rod drives the actuating rod to rotate. Since the other end of the actuating rod is connected to the cross bar, when the force on the actuating rod is greater than the force of the torsion spring, the limit lock hook will rotate around the cross bar, overcoming the friction between the limit lock hook and the fourth unit limit fixing assembly, and limiting the sliding door in the X direction; When performing the sliding door closing operation, the cabin door lock handle is turned, and the pull rod drives the actuating rod to rotate. When the force on the actuating rod is greater than the force of the torsion spring, the limit lock hook rotates around the cross bar, overcoming the friction between the limit lock hook and the fourth machine limit fixing assembly, and releasing the X-axis limit of the sliding door.