Locking mechanism for a sliding window of a helicopter and sliding window thereof

Abstract

The present application relates to the field of aviation technology, in particular to a locking mechanism for a sliding window of a helicopter and the sliding window thereof; the locking mechanism comprises: a lock hook assembly, which comprises a lever component and a lock hook component, the lock hook component is used for being buckled with and separated from a lock point on a cowling, the lever component is rotationally connected with the cowling, one end of the lever component is fixedly connected with the lock hook component, and transverse rotation of the other end of the lever component makes the lock hook component buckled with and separated from the lock point; a handle component; and a linkage assembly, one end of which is connected with the lever component and the other end of which is connected with the handle component, when the handle component is vertically pulled, the linkage assembly is used for driving the lever component to be transversely rotated; the rotation buckling mode realizes that the cowling is connected through the locking structure in a narrow space, and the cowling can be opened and locked only by pulling the handle component, so that the time for disassembling and assembling the cowling is greatly saved, the overall maintenance time is saved, and the maintenance efficiency is higher.

Description

Technical Field

[0001] This invention relates to the field of aviation technology, and specifically to a locking mechanism for a helicopter sliding window and the sliding window thereof. Background Technology

[0002] In helicopters, to maximize space utilization, sliding windows are typically used to open and close the cabin. Helicopters fly at high speeds, requiring extremely tight sealing of these windows. Therefore, rubber layers are usually installed around the window frames to isolate the aircraft from the outside environment. However, because of these rubber layers, closing the sliding window compresses the locking mechanism, creating significant resistance when opening it. This makes the locking mechanism difficult to open, resulting in inconvenience when opening the sliding window. Summary of the Invention

[0003] The purpose of this invention is to provide a locking mechanism for a helicopter sliding window and the sliding window thereof, which can conveniently open and close the sliding window.

[0004] The technical solution of the present invention is: a locking mechanism for a sliding window of a helicopter, used to lock and unlock the window door of the helicopter with the window door guide rail, the window door guide rail including a locking area and an opening area, including: a driving component, which includes a handle unit and a first steel cable, the handle unit being rotatably connected to the window door, and the handle unit being connected to the first steel cable; The first locking pin assembly includes a first elastic element, a first locking pin component, and a first locking pin pulley assembly. The first locking pin component is connected to the first steel cable. One end of the first elastic element abuts against the window door, and the other end abuts against the first locking pin component. A first locking groove is provided on the window door guide rail. When the window door slides to the locking area, the first elastic element pushes the first locking pin component, causing the first locking pin component to automatically insert into the first locking groove, thus achieving the locking. Rotating the handle unit pulls the first locking pin component up and disengages it from the first locking groove via the first steel cable, thus achieving the unlocking. The first locking pin pulley assembly is located at one end of the first locking pin component. When the first locking pin component rises or inserts into the first locking groove, the first locking pin pulley assembly contacts the side wall of the first locking groove.

[0005] According to one embodiment of the present invention, a second locking pin assembly is further included, comprising a second elastic member, a second locking pin component, and a second locking pin pulley group. One end of the second elastic member abuts against the window door, and the other end abuts against the second locking pin component. A third first locking groove is also included, disposed on another window door guide rail. The driving assembly further includes a second steel cable, one end of which is connected to the second locking pin component; and a first lever component, rotatably connected to the window door, one end of which is connected to the first steel cable and rotatably connected to the first locking pin component, and the other end of which is connected to the second steel cable. When the window door slides to the locking area, the second elastic member causes the second locking pin component to automatically insert into the first locking groove. When the first locking pin component disengages from the first locking groove, the first lever component causes the second steel cable to simultaneously pull the second locking pin component out of the other first locking groove.

[0006] According to one embodiment of the present invention, the first locking pin pulley group includes a first vertical sliding wheel and a first horizontal sliding wheel; and / or, the second locking pin pulley group includes a second vertical sliding wheel and a second horizontal sliding wheel.

[0007] According to one embodiment of the present invention, the handle unit includes an inner handle and an outer handle, wherein the inner handle is fastened to the outer handle.

[0008] According to one embodiment of the present invention, the drive assembly includes a handle crank, which is fastened to the handle unit; and a second lever component, which is rotatably connected to the window door, with one end connected to the first steel cable and the other end connected to the handle crank; when the handle unit is rotated, the handle crank drives the second lever component to rotate, thereby pulling the first steel cable.

[0009] According to one embodiment of the present invention, a swing rod is provided on the handle crank, and a waist-shaped hole is provided on the second lever component, the swing rod being inserted into the waist-shaped hole.

[0010] According to an embodiment of the present invention, the drive assembly includes a handle mounting base, which is fastened to the window door; the handle unit is rotatably connected to the handle mounting base; the second lever component is rotatably connected to the handle mounting base; and a first torsion spring; a limiting hole is provided on the handle crank; a limiting post is provided on the handle mounting base; one end of the first torsion spring is inserted into the limiting hole, and the other end abuts against the limiting post.

[0011] According to one embodiment of the present invention, it further includes a first locking pin mounting seat, which is fastened to the window door, the first locking pin component is slidably connected to the first locking pin mounting seat, and the first lever is rotatably connected to the first locking pin mounting seat; and / or, it further includes a second locking pin mounting seat, which is fastened to the window door, and the second locking pin component is slidably connected to the second locking pin mounting seat.

[0012] A sliding window is also provided according to an embodiment of the present invention, comprising: a window frame; two sets of window guide rails, respectively fastened to the upper and lower sides of the window frame, each including a locking area and an opening area; a window door, disposed between the two sets of window guide rails and slidably connected to the window guide rails; a first sliding wheel group and a second sliding wheel group provided on its upper and lower sides; and the aforementioned locking mechanism, comprising a locking pin assembly, the two sets of the locking pin assemblies respectively disposed on the upper and lower sides of the window door; the opening area is provided with a second locking groove, and when the window door is located in the opening area, a portion of the locking pin assembly is inserted into the second locking groove; the locking area is provided with a first locking groove, and when the window door is located in the locking area, a portion of the locking pin assembly is inserted into the first locking groove.

[0013] According to one embodiment of the present invention, the window door is provided with rubber strips around its perimeter; the window door guide rail is further provided with a fastening guide and a fastening groove in the locking area. When the window door is located in the locking area, the fastening guide is used to guide the first sliding wheel group to move inward, and the fastening groove can guide the second sliding wheel group to move inward, so as to make the window door fit inward against the aircraft cabin and thus make the rubber strip close the window door; the first locking groove includes a vertical pulley area and a horizontal pulley area. The vertical pulley area is provided with a guide and a locking part. The locking part is located on the inner side of the window door, and the guide is used to guide the vertical sliding wheel on the locking pin assembly to move inward and enter the locking part.

[0014] The outstanding and beneficial technical effects of this invention compared to the prior art are:

[0015] Compared with the prior art, the locking mechanism for a helicopter sliding window of the present invention, with its handle unit, first steel cable connection, first elastic element, first locking pin component, and first locking pin pulley group, is designed so that when the first locking pin component is inserted into and removed from the first locking groove, it contacts the first locking groove through the first locking pin pulley group. This rolling contact reduces the friction of the locking pin, making the opening and locking process of the locking mechanism more convenient and the operator easier to open the sliding window. Furthermore, the design of the first elastic element allows the first locking pin component to automatically enter the first locking groove without needing to operate the handle unit when it reaches the first locking groove, thus completing the locking. This makes operation very convenient and avoids the problem of difficulty in opening the locking mechanism.

[0016] Furthermore, the design of the second steel cable and the second locking pin assembly, namely the design of two locking pin assemblies, or two locking points, makes the sliding window more stable and the force more even when locked. Moreover, the two locking pin assemblies can be opened with just one action of turning the handle unit, making it more convenient to open.

[0017] Furthermore, the design of the first horizontal sliding wheel ensures that the end of the first locking pin component rolls into contact with the window guide rail during the sliding window operation, thus preventing excessive friction from occurring in the first locking pin component. Furthermore, the design of the first vertical sliding wheel reduces friction by rolling into the first locking groove when the first locking pin component is pulled out or inserted, making it easier to pull out and insert the first locking pin component and avoiding difficulties in opening the locking mechanism. The design of the second vertical sliding wheel and the second horizontal sliding wheel follows the same principle.

[0018] Furthermore, the design of the inner and outer handles allows the locking mechanism to be opened from both inside and outside the helicopter.

[0019] Furthermore, the design of the first torsion spring, located behind the wrench handle unit, enables the handle unit to automatically reset.

[0020] Furthermore, the design of the handle mounting base, the first locking pin mounting base, and / or the second locking pin mounting base allows for a detachable connection between the entire locking mechanism and the sliding window. This modular design also makes it easier to modify, install, and replace the locking structure.

[0021] Furthermore, a sliding window is also provided, including the aforementioned locking mechanism, making it more convenient to open and lock the sliding window.

[0022] Furthermore, the design of the fastening guide and fastening groove ensures that the rubber strip is compressed when the sliding window is locked, thereby isolating the internal and external spaces of the helicopter and improving the isolation effect. The first locking groove includes a vertical pulley area and a horizontal pulley area, and the vertical pulley area is provided with a guide and a locking part, making it easier for the locking pin assembly to be inserted into and removed from the first locking groove. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a sliding window for a helicopter according to one embodiment of the present invention.

[0024] Figure 2 yes Figure 1 A schematic diagram of the structure of a central window door.

[0025] Figure 3 This is a schematic diagram of the window and door guide rail in one embodiment of the present invention.

[0026] Figure 4 This is a partially enlarged view of the window and door guide rail in one embodiment of the present invention.

[0027] Figure 5 This is a partial cross-sectional view of a window and door guide rail in one embodiment of the present invention.

[0028] Figure 6This is a cross-sectional view of a sliding window for a helicopter according to an embodiment of the present invention.

[0029] Figure 7 yes Figure 6 A partial sectional view.

[0030] Figure 8 This is a schematic diagram of the locking mechanism.

[0031] Figure 9 This is a magnified view of the locking mechanism at the first locking pin assembly.

[0032] Figure 10 This is a magnified view of the locking mechanism at the second locking pin assembly.

[0033] Figure 11 This is a magnified view of the locking mechanism at the handle unit.

[0034] Symbol explanation:

[0035] 10-Window / door frame; 20-Window / door guide rail; 21-Locking area; 22-Window opening area; 23-First locking groove; 24-Second locking groove; 25-Securing guide part; 26-Securing groove; 231-Vertical pulley area; 232-Horizontal pulley area; 2311-Guide part; 2312-Locking part; 30-Window / door; 31-First sliding wheel group; 32-Second sliding wheel group; 33-Rubber strip; 40-Locking mechanism; 41-Locking pin assembly; 4 1a-First locking pin assembly; 411a-First elastic element; 412a-First locking pin component; 413a-First locking pin pulley block; 4131a-First vertical sliding wheel; 4132a-First horizontal sliding wheel; 41b-Second locking pin assembly; 411b-Second elastic element; 412b-Second locking pin component; 413b-Second locking pin pulley block; 4131b-Second vertical sliding wheel; 4132b-Second horizontal sliding wheel; 42-Drive assembly; 421-Handle unit; 422-First steel cable; 423-Second steel cable; 424-First lever component; 425-Handle crank; 426-Second lever component; 427-Handle mounting seat; 428-First torsion spring; 4211-Inner handle; 4212-Outer handle; 4251-Swing rod; 4252-Limiting hole; 4261-Oval hole; 4271-Limiting post; 43-First locking pin mounting seat; 44-Second locking pin mounting seat; 321-Pulley one; 322-Pulley two. Detailed Implementation

[0036] The foregoing and other technical contents, features, and effects of the present invention will be described in detail and clearly presented in conjunction with the accompanying drawings, specifically in the preferred embodiments and examples of the present invention. The directional terms mentioned in the following embodiments, such as up, down, left, right, front, back, inside, or outside, are merely for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the present invention.

[0037] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in the specification and claims of this patent application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a limitation of quantity, but rather indicate the presence of at least one.

[0038] On helicopters, the airtightness of sliding windows is crucial. Therefore, a rubber layer is typically installed around the window to isolate the aircraft from the outside environment. However, because of this rubber layer, when the sliding window is closed, it compresses the locking mechanism. Consequently, opening the sliding window generates significant resistance, making it difficult to open and thus inconvenient.

[0039] Reference Figures 1 to 3 This embodiment provides a sliding window, including: a window frame 10, window guide rails 20, a window door 30, and a locking mechanism 40; two sets of window guide rails 20 are respectively fastened to the upper and lower sides of the window frame 10, each including a locking area 21 and an opening area 22; the window door 30 is disposed between the two sets of window guide rails 20 and slidably connected to them, and has a first sliding wheel set 31 and a second sliding wheel set 32 ​​on its upper and lower sides, the pulleys on the first sliding wheel set 31 and the second sliding wheel set 32 ​​being located inside the window guide rails 20; the locking mechanism 40 The system includes two sets of locking pin assemblies 41, which are respectively located on the upper and lower sides of the window 30. The locking area 21 is provided with a first locking groove 23. When the window 30 slides to the locking area 21, the locking mechanism 40 can be driven to partially insert the locking pin assembly 41 into the first locking groove 23, thereby locking the window 30 in the locking area 21. The window opening area 22 is provided with a second locking groove 24. When the window 30 slides to the window opening area 22, the locking mechanism 40 can be driven to partially insert the locking pin assembly 41 into the second locking groove 24, thereby locking the window 30 in the window opening area 22.

[0040] Specifically, refer to Figures 1 to 5The window door 30 is provided with rubber strips 33 around its perimeter; the window door guide rail 20 is also provided with a fastening guide part 25 and a fastening groove 26 in the locking area 21. When the window door 30 is located in the locking area 21, the fastening guide part 25 is used to guide the first sliding wheel group 31 to move inward, and the fastening groove 26 can guide the second sliding wheel group 32 to move inward, so that the window door 30 is pressed against the aircraft cabin, thereby allowing the rubber strips 33 to seal the window door 30.

[0041] Reference Figure 8 and Figure 9 The locking mechanism 40 includes a locking pin assembly 41 and a drive assembly 42. The drive assembly 42 includes a handle unit 421 and a first steel cable 422. The handle unit 421 is rotatably connected to the window 30 and is connected to the first steel cable 422. The locking pin assembly 41 is at least one set, preferably two sets, which are a first locking pin assembly 41a and a second locking pin assembly 41b, respectively located on the upper and lower sides of the window 30. The first locking pin assembly 41a includes a first elastic element 411a, a first locking pin component 412a, and a first locking pin pulley assembly 413a. The first locking pin component 412a is connected to the first steel cable 422. The first elastic element 411a is sleeved on the outside of the first locking pin component 412a, with one end of the first elastic element 411a abutting against the window 30 and the other end abutting against the first locking pin component 412a. When the window 30 reaches the locking zone 21, the first elastic element 411a pushes the first locking pin component 412a under the action of elastic force, causing the first locking pin component 412a to automatically insert into the first locking groove 23. Rotating the handle unit 421, via the first steel cable 422... The first locking pin component 412a is pulled up and disengaged from the first locking groove 23; the first locking pin pulley assembly 413a is provided at one end of the first locking pin component 412a. When the first locking pin component 412a rises or inserts into the first locking groove 23, the first locking pin pulley assembly 413a contacts the side wall of the first locking groove 23; the first locking pin pulley assembly 413a includes a first vertical sliding wheel 4131a and a first horizontal sliding wheel 4132a. The first vertical sliding wheel 4131a contacts the side wall of the first locking groove 23. When the first locking pin component 412a is inserted into the first locking groove 23, the first horizontal sliding wheel 4132a contacts the bottom wall of the first locking groove 23.

[0042] When the first locking pin component 412a is inserted into and removed from the first locking groove 23, the first locking pin pulley group 413a contacts the first locking groove 23. This rolling contact reduces the friction of the locking pin, making the opening and locking process of the locking mechanism 40 more convenient and the operator can open the sliding window more easily. Furthermore, the design of the first elastic element 411a means that when the first locking pin component 412a reaches the first locking groove, it can be pushed into the first locking groove 23 automatically without the need to operate the handle unit 421 to complete the locking. The operation is very convenient and avoids the problem of difficulty in opening the locking mechanism 40.

[0043] Reference Figures 8 to 10 The second locking pin assembly 41b includes a second elastic member 411b, a second locking pin component 412b, and a second locking pin pulley assembly 413b. The second elastic member 411b is sleeved on the second locking pin component 412b, with one end of the second elastic member 411b abutting against the window / door 30 and the other end abutting against the second locking pin component 412b; see reference. Figure 9 The drive assembly 42 also includes: a second steel cable 423 and a first lever component 424; one end of the second steel cable 423 is connected to the second locking pin component 412b; the first lever component 424 is rotatably connected to the window 30, one end of which is connected to the first steel cable 422 and rotatably connected to the first locking pin component 412a, and the other end of which is connected to the second steel cable 423; when the window 30 reaches the locking area 21, the second elastic element 413b causes the second locking pin component 412b to automatically insert into another first locking groove 23 on another window guide rail 20 under the action of elastic force; When the handle unit is turned, the first steel cable 422 pulls the first locking pin component 412a to disengage it from the first locking groove 23. Under the action of the first lever component 424, the second steel cable 423 simultaneously pulls the second locking pin component 412b to disengage it from the other first locking groove 23. The second locking pin pulley group 413b includes a second vertical sliding wheel 4131b and a second horizontal sliding wheel 4132b. When the second locking pin component 412b is inserted into the other first locking groove 23, the second vertical sliding wheel 4131b contacts the side wall of the other first locking groove 23.

[0044] The design of the second steel cable 423 and the second locking pin assembly 41b, namely the design of two locking pin assemblies, namely two locking points, makes the sliding window more stable and the force more even when locked. Moreover, the two locking pin assemblies can be opened with just one action of pulling the handle unit 421, making it more convenient to open.

[0045] Reference Figures 3 to 6 The first locking groove 23 includes a vertical pulley area 231 and a horizontal pulley area 232. The vertical pulley area 231 is provided with a guide part 2311 and a locking part 2312. The locking part 2312 is located inside the window 30. The guide part 2311 is used to guide the vertical sliding wheel (first vertical sliding wheel 4131a or second vertical sliding wheel 4131b) on the locking pin assembly 41 (first locking pin assembly 41a or second locking pin assembly 41b) to move inward and enter the locking part 2312. (See reference...) Figure 5The guide portion 2311 includes two guide ramps located on opposite sides of the locking portion 2312, which can guide the vertical pulleys into or away from the locking portion 2312. When the first sliding wheel group 31 on the sliding window 30 enters the locking guide portion 25, and the second sliding wheel group 32 enters the locking groove 26, the window 30 moves inward and the rubber strip 33 is in a compressed state, thereby isolating the internal and external spaces of the helicopter and improving the isolation effect. The first locking groove includes a vertical pulley area and a horizontal pulley area, and the vertical pulley area is provided with a guide portion and a locking portion, making it easier for the locking pin assembly 41 to insert into and remove from the first locking groove.

[0046] During the sliding window process, the end of the first locking pin component 412a rolls into contact with the window guide rail, thus avoiding excessive friction in the locking pin assembly 41 during the sliding window process. Furthermore, the design of the first vertical sliding wheel 4131a reduces friction by rolling with the first locking groove 23 when the first locking pin component 412a is pulled out and inserted, making it easier to pull out and insert the first locking pin component 412a and avoiding the problem of difficulty in opening the locking mechanism 40. Furthermore, the design of the second vertical sliding wheel 4131b and the second horizontal sliding wheel 4132b is similar to the above.

[0047] Reference Figure 9 and Figure 10 The second sliding wheel assembly 32 includes: a first sliding wheel 321 and a second sliding wheel 322, located on both sides of the locking pin assembly 41, as shown in the figure. Figure 4 The window and door guide rail 20 is provided with two fastening grooves 26, which are located on both sides of the first locking groove 23. This arrangement of two sliding wheels on both sides of the locking pin assembly 41 supports the window and door on both sides of the locking pin assembly 41, so that the locking pin assembly 41 does not bear the force of the window and door 30, thereby making the locking pin assembly 41 more smoothly inserted into and disengaged from the first locking groove 23.

[0048] Reference Figure 11 The handle unit 421 includes an inner handle 4211 and an outer handle 4212. The inner handle 4211 and the outer handle 4212 are fastened together, so that the locking mechanism can be opened and closed from both inside and outside the helicopter.

[0049] The drive assembly 42 includes a handle crank 425 and a second lever component 426; the handle crank 425 is fastened to the handle unit 421; the second lever component 426 is rotatably connected to the window door 30, one end of which is connected to the first steel cable 422, and the other end of which is connected to the handle crank 425; when the handle unit 421 is rotated, the handle crank 425 drives the second lever component 426 to rotate, thereby pulling the first steel cable 422.

[0050] Specifically, a swing rod 4251 is provided on the handle crank 425, and a waist-shaped hole 4261 is provided on the second lever component 426. The swing rod 4251 is inserted into the waist-shaped hole 4261. When the handle unit 421 is rotated, the handle crank 425 rotates, and then the swing rod 4251 swings, thereby driving the second lever component 426 to rotate.

[0051] Furthermore, refer to Figure 11 The drive assembly 42 includes a handle mounting base 427 and a first torsion spring 428; it is fastened to the window door 30. The handle unit 421 is rotatably connected to the handle mounting base 427, and the second lever component 426 is rotatably connected to the handle mounting base 427. A limiting hole 4252 is provided on the handle crank 425, and a limiting post 4271 is provided on the handle mounting base 427. One end of the first torsion spring 428 is inserted into the limiting hole 4252, and the other end abuts against the limiting post 4271. The design of the first torsion spring behind the wrench handle unit enables the handle unit to automatically reset.

[0052] Figures 1 to 11 It also includes a first locking pin mounting base 43 and a second locking pin mounting base 44; the first locking pin mounting base 43 is fastened to the window 30, the first locking pin component 412a is slidably connected to the first locking pin mounting base 43, and the first lever component 424 is rotatably connected to the first locking pin mounting base 43; the second locking pin mounting base 44 is fastened to the window 30, and the second locking pin component 412b is slidably connected to the second locking pin mounting base 44. The entire locking mechanism is detachably connected to the sliding window, and this modular design makes it easier to modify, install, and replace the locking structure.

[0053] The operating principle of this embodiment:

[0054] When the window 30 is in the open state, the window 30 is in the window opening area 22, and the first locking pin component 412a and the second locking pin component 412b are respectively inserted into the second locking grooves 24 on the two window guide rails.

[0055] When the window door 30 is closed, the sliding window door 30 moves to the locking zone 21. The fastening guide 25 on the window door guide rail 20 guides the first sliding wheel assembly 31 to move inward. When the locking pin assembly 41 reaches the first locking groove 23, the first elastic member 411a pushes the first locking pin component 412a, causing the first locking pin component 412a to automatically enter the first locking groove 23. During this process, the guide 2311 in the first locking groove 23 contacts the first vertical sliding wheel 4131a on the first locking pin pulley assembly 413a and guides the first vertical sliding wheel 4131a into the locking part 2312, thereby causing the first locking pin component 412a to move inward; and the second elastic member 411a pushes the first locking pin component 412a into the locking part 2312. The first locking pin 411b pushes the second locking pin 412b, causing the first locking pin 412b to automatically enter another first locking groove 23. During this process, the guide part 2311 in the first locking groove 23 contacts the second vertical sliding wheel 4131b on the second locking pin pulley group 413b and guides the second vertical sliding wheel 4131b into the locking part 2312. Then the second locking pin 412b moves inward, and the window 30 continues to move inward. The second sliding wheel group 32 enters the fastening groove 26, thereby locking the locking mechanism 40 and the window 30. The rubber strip 33 on the window 30 adheres tightly and seals the aircraft cabin.

[0056] When the window 30 is reopened, the handle unit 421 is activated, causing the handle crank 425 to rotate and pull the first steel cable 422. This, in turn, pulls the first locking pin assembly 41a upward and disengages it from the first locking groove 23. Simultaneously, the first lever component 424 rotates, pulling the second steel cable 423, which in turn pulls the second locking pin assembly 41b disengages from the other first locking groove 23. During this process, the first vertical sliding wheel 4131a rolls into contact with the side wall of the first locking groove 23, and the second vertical sliding wheel 4131b rolls into contact with the side wall of the other first locking groove 23. Ultimately, the locking mechanism 40 is unlocked, allowing the window 30 to be pushed further and opened.

[0057] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the implementation of the technology of the present invention in any way, nor are they intended to limit the scope of protection of the present invention. Any person skilled in the art can make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in the present invention, and such modifications or alterations should still be regarded as the same technology or embodiments as the present invention. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A locking mechanism for a sliding window of a helicopter, used to lock and unlock the window door (30) of the helicopter to a window door guide rail (20), said window door guide rail (20) including a locking area (21) and a window opening area (22), characterized in that, include: A drive assembly (42b) includes a handle unit (421) and a first steel cable (422), the handle unit (421) being rotatably connected to the window door (30) and the handle unit (421) being connected to the first steel cable (422); The first locking pin assembly (41a) includes a first elastic element (411a), a first locking pin component (412a) and a first locking pin pulley group (413a). The first locking pin component (412a) is connected to the first steel cable (422). One end of the first elastic element (411a) abuts against the window door (30) and the other end abuts against the first locking pin component (412a). The first locking groove (23) is provided on the window and door guide rail (20); The second locking pin assembly (41b) includes a second elastic member (411b), a second locking pin component (412b), and a second locking pin pulley assembly (413b). One end of the second elastic member (411b) abuts against the window door (30), and the other end abuts against the second locking pin component (412b). as well as Another first locking groove (23) is provided on another window / door guide rail (20). When the window door (30) slides to the locking area (21), the first elastic element (411a) pushes the first locking pin component (412a), causing the first locking pin component (412a) to automatically insert into the first locking groove (23), thereby achieving the locking; rotating the handle unit (421) pulls the first locking pin component (412a) up and disengages it from the first locking groove (23) via the first steel cable (422), thereby achieving the unlocking. The first locking pin pulley assembly (413a) is located at one end of the first locking pin component (412a). When the first locking pin component (412a) rises or inserts into the first locking groove (23), the first locking pin pulley assembly (413a) contacts the side wall of the first locking groove (23). The drive component (42b) also includes: The second steel cable (423) has one end connected to the second locking pin component (412b); as well as The first lever component (424) is rotatably connected to the window door (30), one end of which is connected to the first steel cable (422) and rotatably connected to the first locking pin component (412a), and the other end of which is connected to the second steel cable (423). When the window (30) slides to the locking area (21), the second elastic member (411b) causes the second locking pin (412b) to automatically insert into the first locking groove (23); when the first locking pin (412a) disengages from the first locking groove (23), the first lever member (424) causes the second steel cable (423) to simultaneously pull the second locking pin (412b) out of the other first locking groove (23).

2. The locking mechanism for a helicopter sliding window according to claim 1, characterized in that, The first locking pin pulley assembly (413a) includes: The first vertical sliding wheel (4131a) and the first horizontal sliding wheel (4132a); and / or, The second locking pin pulley assembly (413b) includes a second vertical sliding wheel (4131b) and a second horizontal sliding wheel (4132b).

3. The locking mechanism for a helicopter sliding window according to claim 1, characterized in that, The handle unit (421) includes an inner handle (4211) and an outer handle (4212), wherein the inner handle (4211) and the outer handle (4212) are fastened together.

4. A locking mechanism for a helicopter sliding window according to claim 1, characterized in that, The drive component (42b) also includes: The handle crank (425) is securely connected to the handle unit (421); and The second lever component is rotatably connected to the window (30), with one end connected to the first steel cable (422) and the other end connected to the handle crank (425); When the handle unit (421) is rotated, the handle crank (425) drives the second lever component to rotate, thereby pulling the first steel cable (422).

5. A locking mechanism for a helicopter sliding window according to claim 4, characterized in that, The handle crank (425) is provided with a swing rod (4251), and the second lever component is provided with a waist-shaped hole (4261), and the swing rod (4251) is inserted into the waist-shaped hole (4261).

6. A locking mechanism for a helicopter sliding window according to claim 5, characterized in that, The drive component (42b) also includes: A handle mounting base (427) is fastened to the window door (30), the handle unit (421) is rotatably connected to the handle mounting base (427), and the second lever component is rotatably connected to the handle mounting base (427); and First torsion spring (428). The handle crank (425) is provided with a limiting hole (4252), and the handle mounting base (427) is provided with a limiting post (4271). One end of the first torsion spring (428) is inserted into the limiting hole (4252), and the other end abuts against the limiting post (4271).

7. A locking mechanism for a helicopter sliding window according to claim 2, characterized in that, It also includes a first locking pin mounting seat (43) for fastening to the window door (30), a first locking pin component (412a) for sliding connection to the first locking pin mounting seat (43), and a first lever for rotatable connection to the first locking pin mounting seat (43); and / or, It also includes a second locking pin mounting seat (44), which is fastened to the window door (30), and the second locking pin component (412b) is slidably connected to the second locking pin mounting seat (44).

8. A sliding window, characterized in that, include: Window and door frame (10) Two sets of window and door guide rails (20) are fastened to the upper and lower sides of the window and door frame (10), respectively, including a locking area (21) and a window opening area (22). A window door (30) is positioned between two sets of window door guide rails (20) and is slidably connected to the window door guide rails (20); a first set of sliding wheels (31) and a second set of sliding wheels (32) are provided on its upper and lower sides; and The locking mechanism is the locking mechanism according to any one of claims 1-7, which includes a locking pin assembly (41), and two sets of the locking pin assemblies (41) are respectively provided on the upper and lower sides of the window (30); The window opening area (22) is provided with a second locking groove (24). When the window door (30) is located in the window opening area (22), the locking pin assembly (41) is partially inserted into the second locking groove (24). The locking area (21) is provided with a first locking groove (23). When the window (30) is located in the locking area (21), the locking pin assembly (41) is partially inserted into the first locking groove (23).

9. A sliding window according to claim 8, characterized in that, The window (30) is provided with rubber strips (33) around its perimeter. The window door guide rail (20) is also provided with a fastening guide (2311) (25) and a fastening groove (26) in the locking area (21). When the window door (30) is located in the locking area (21), the fastening guide (2311) (25) is used to guide the first sliding wheel group (31) to move inward, and the fastening groove (26) can guide the second sliding wheel group (32) to move inward, so that the window door (30) is pressed against the aircraft cabin inward and the rubber strip (33) closes the window door (30). The first locking groove (23) includes a vertical pulley area (231) and a horizontal pulley area (232). The vertical pulley area (231) is provided with a guide part (2311) and a locking part (2312). The locking part (2312) is located inside the window (30). The guide part (2311) is used to guide the vertical sliding wheel on the locking pin assembly (41) to move inward and enter the locking part (2312).

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