Door handle structure of full-view cabin door of helicopter
By employing a concealed door handle structure and a heated anti-icing design, the problems of traditional helicopter cabin door handles obstructing the view and being prone to icing have been solved, improving both ease of use and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU SHENGHE AVIATION TECH DEV CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional helicopter door handles can obstruct the view when used on full-view doors, and components such as locks and buttons are exposed, making them susceptible to dust or ice buildup, which is inconvenient to use.
A concealed door handle structure was designed, including a fixed base, a rotating base, and a handle. The handle can be flipped out of the slot for gripping and does not obstruct the view when stored. The heating base prevents icing through an electric heating component, and the lock cylinder is protected by the handle.
It achieves the protection of keyholes and buttons without affecting the overall field of view, preventing dust intrusion and icing, thus improving ease of use and safety.
Smart Images

Figure CN224260054U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of helicopter cabin door technology, and in particular to the door handle structure of a helicopter full-view cabin door. Background Technology
[0002] Because the opening size of ordinary helicopter cabin doors and windows is very limited, it greatly restricts the various operations that helmet-wearing pilots can perform. Forcing the helmet to extend outside the window to work would undoubtedly increase the difficulty of operations and also pose significant safety risks. Therefore, a full-view cabin door that allows for observation from more angles is used.
[0003] However, traditional helicopter cabin door handles are protruding, which can easily obstruct the view when used directly on a full-view door. At the same time, the lock holes, buttons and other components on the handle are also directly exposed, making them prone to dust or water freezing, which is inconvenient to use.
[0004] Therefore, this application provides a door handle structure for a helicopter full-view cabin door to meet the requirements. Summary of the Invention
[0005] The technical problem this invention aims to solve is to provide a door handle structure for a helicopter full-view cabin door. This addresses the issues of existing traditional helicopter door handles, which, when directly applied to full-view cabin doors, easily obstruct the view. Furthermore, the lock holes, buttons, and other components on the handle are directly exposed, making them susceptible to dust or water ingress and icing, resulting in inconvenience.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0007] The door handle structure of the helicopter full-view cabin door includes the full-view cabin door. The outer edge of the full-view cabin door is provided with a groove. A fixed seat is fixed in the groove. A rotatable rotating seat is fitted on the outer side of the fixed seat. One end of the rotating seat extends into the fixed seat and is connected to a latch control assembly. The other end of the rotating seat is located on the outer side of the fixed seat and is rotatably mounted with a handle. A slot for the handle to be engaged is opened in the middle of the outer side of the fixed seat. A lock cylinder covered by the handle is also installed in the middle of the slot.
[0008] The outer surface of the grip is provided with a heat transfer layer, and the end of the slot on the fixing base is provided with a heating base for heating the heat transfer layer.
[0009] Optionally, the rotating seat has a mounting groove at its end located outside the fixed seat, and one end of the handle is rotatably mounted in the mounting groove.
[0010] Optionally, the end of the grip that is rotatably mounted in the mounting groove is also provided with a protrusion that protrudes outside the mounting groove.
[0011] Optionally, an arc-shaped groove is provided on the inner center of the handle, corresponding to the position of the lock cylinder.
[0012] Optionally, the heating seat is fixed to the end of the slot on the fixed seat away from the rotating seat.
[0013] Optionally, the heating base has a mating groove on its side, which is mated to the end of the handle away from the rotating base.
[0014] Optionally, the heating seat is equipped with an electric heating component and electrically connected to a power source, which is fixed inside the full-view hatch.
[0015] Optionally, the heating element within the heating base includes a heating wire.
[0016] Compared with the prior art, this utility model has at least the following beneficial effects:
[0017] In the above solution, thanks to the cooperation of the fixed seat, rotating seat and handle, the handle can be flipped out from the slot on the fixed seat during use to make it easy to hold and open the door. After use, the handle can be stored in the slot on the fixed seat to avoid affecting the driver's full field of vision.
[0018] In the above solution, thanks to the cover provided by the handle, the lock cylinder can be protected, preventing dust or water from entering and freezing inside.
[0019] In the above solution, thanks to the setting of the heating seat and power supply, the heat transfer layer on the outer surface of the grip can be heated by the heating seat, so that the outer surface of the grip is less likely to freeze when the helicopter is flying at high altitude.
[0020] In summary, this device adopts a concealed structure, which can avoid affecting the full-view observation function of the full-view hatch. It can also protect components such as lock holes and buttons by covering them to prevent dust accumulation, water ingress, and icing. Overall, it has good performance. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the door handle structure of the helicopter full-view cabin door of this utility model;
[0023] Figure 2 In this utility model Figure 1 Enlarged schematic diagram of a local structure in the middle;
[0024] Figure 3 This is a schematic diagram of the grip installation structure in this utility model;
[0025] Figure 4 This is a schematic diagram of the heating base in this utility model.
[0026] Figure label:
[0027] 1. Full-view hatch; 101. Groove; 2. Fixed seat; 3. Rotating seat; 301. Mounting slot; 4. Handle; 401. Arc groove; 402. Heat transfer layer; 5. Lock cylinder; 6. Heating seat; 601. Docking groove; 7. Power supply. Detailed Implementation
[0028] The embodiments of this application will now be described in detail with reference to the accompanying drawings.
[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0030] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a door handle structure for a helicopter full-view cabin door, including a full-view cabin door 1. A groove 101 is provided on the outer edge of the full-view cabin door 1. A fixed seat 2 is fixed in the groove 101. A rotatable rotating seat 3 is fitted on the outer side of the fixed seat 2. One end of the rotating seat 3 extends into the fixed seat 2 and is connected to a locking control component. The other end of the rotating seat 3 is located on the outer side of the fixed seat 2 and is rotatably mounted with a handle 4.
[0031] Cooperate Figure 3 As shown, a slot for the handle 4 to be inserted is provided in the middle of the outer side of the fixing base 2. The lock cylinder 5 covered by the handle 4 is also installed in the middle of the slot. Specifically, an arc-shaped groove 401 is provided in the middle of the inner side of the handle 4, corresponding to the position of the lock cylinder 5, so that when the handle 4 is stored in the slot, the lock cylinder 5 can be protected to prevent dust or water from entering and freezing.
[0032] The rotating base 3 has a mounting groove 301 at its outer end on the outside of the fixed base 2. One end of the handle 4 is rotatably mounted in the mounting groove 301, and the end of the handle 4 rotatably mounted in the mounting groove 301 also has a protrusion protruding outside the mounting groove 301. Therefore, by pressing the protrusion, the gripping position of the handle 4 can be easily pried out of the slot of the fixed base 2.
[0033] In addition, in conjunction with Figure 4 As shown, a heat transfer layer 402 is provided on the outer surface of the grip 4, and a heating seat 6 for heating the heat transfer layer 402 is provided at the end of the slot on the fixing base 2. The heating seat 6 is fixed to the end of the slot on the fixing base 2 away from the rotating base 3. Specifically, a mating groove 601 is provided on the side of the heating seat 6, and the mating groove 601 mates with the end of the grip 4 away from the rotating base 3.
[0034] In this embodiment, the heating seat 6 is equipped with an electric heating component and is electrically connected to a power supply 7, which is fixed inside the full-view hatch 1. In specific implementation, the electric heating component in the heating seat 6 can be, but is not limited to, an electric heating wire, and the control terminal of the power supply 7 can be connected to the helicopter's central control console or independently installed on the inside of the full-view hatch 1.
[0035] In addition, in this embodiment, the lock cylinder 5 and the latch control component connected to the rotating seat 3 can both adopt the door lock structure in the helicopter field in the prior art, which will not be described in detail.
[0036] The working principle of the technical solution provided by this utility model is as follows:
[0037] The door handle structure of the helicopter's all-view cabin door, through the arrangement of the rotating base 3 and the grip 4, allows the grip 4 to be flipped out from the slot on the fixed base 2 for easy gripping and opening of the door during use. After use, the grip 4 can be stored back in the slot on the fixed base 2 to avoid affecting the all-view observation function of the all-view cabin door 1. At the same time, when the grip 4 is stored in the slot on the fixed base 2, it will cover and protect the lock cylinder 5, thereby preventing dust or water from entering the lock cylinder 5 and causing ice to form.
[0038] In addition, when needed, the heating wire in the heating seat 6 can be powered by the control power supply 7, and the heat transfer layer 402 on the outer surface of the grip 4 can be heated by contacting the grip 4 through the docking groove 601, so that the outer surface of the grip 4 is less likely to freeze when the helicopter is flying at high altitude.
[0039] In summary, this device adopts a concealed structure, which can avoid affecting the full-view observation function of the full-view hatch 1. It can also protect components such as lock holes and buttons by covering them to prevent dust accumulation, water ingress, and icing. Overall, it has a good performance.
[0040] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0041] The above description is merely a specific embodiment of the present invention and should not be construed as limiting the scope of the invention. Therefore, any substitution of equivalent components or equivalent changes and modifications made within the scope of protection of this patent should still fall within the scope of this patent. Furthermore, the technical features, technical features and technical solutions, and technical solutions in this invention can be freely combined and used.
Claims
1. A door handle structure for a helicopter full-view cabin door, comprising a full-view cabin door, wherein a groove is provided on the outer edge of the full-view cabin door, and a fixing seat is fixed in the groove, characterized in that, A rotatable rotating seat is fitted onto the outer side of the fixed seat. One end of the rotating seat extends into the fixed seat and is connected to the latch control assembly. The other end of the rotating seat is located on the outside of the fixed seat and is rotatably mounted with a handle. A slot for the handle to be inserted is provided in the middle of the outer side of the fixed seat. A lock cylinder covered by the handle is also installed in the middle of the slot. The outer surface of the grip is provided with a heat transfer layer, and the end of the slot on the fixing base is provided with a heating base for heating the heat transfer layer.
2. The door handle structure of the helicopter full-view cabin door according to claim 1, characterized in that, The rotating base has a mounting groove at its outer end, which is located on the outside of the fixed base, and one end of the handle is rotatably mounted in the mounting groove.
3. The door handle structure of the helicopter full-view cabin door according to claim 2, characterized in that, The end of the grip that is rotatably mounted in the mounting groove also has a protrusion that protrudes outside the mounting groove.
4. The door handle structure of the helicopter full-view cabin door according to claim 1, characterized in that, An arc-shaped groove is provided on the inner center of the handle, corresponding to the position of the lock cylinder.
5. The door handle structure of the helicopter full-view cabin door according to claim 1, characterized in that, The heating seat is fixed to the end of the slot on the fixed seat away from the rotating seat.
6. The door handle structure of the helicopter full-view cabin door according to claim 1, characterized in that, The heating base has a mating groove on its side, which is mated to the end of the handle away from the rotating base.
7. The door handle structure of the helicopter full-view cabin door according to claim 1, characterized in that, The heating seat is equipped with an electric heating component and is electrically connected to a power source, which is fixed inside the full-view hatch.
8. The door handle structure of the helicopter full-view cabin door according to claim 7, characterized in that, The heating element within the heating base includes a heating wire.