Cabin door stopper structure
By designing the U-profile stop box and stop cover, combined with the door suction structure of the flat-head shaft and the open-closing spring, the problems of insufficient bearing capacity and poor fixing performance of the existing door suction device are solved, and the positioning accuracy is achieved. Easy to disassemble and assemble and good interchangeability.
Patent Information
- Application Number
- CN202420922740.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The existing door suction devices have poor load-bearing capacity, poor processability, easy deformity of the spring clamp, easy to cause clamps and seat clamps to be not tightly guided, and poor fixing performance.
A hatch door suction structure is designed, using a stop box and a stop cover as U profile, which is rotatably connected by a flat-head shaft, combined with an open-close spring and a washer to form a support elastic force, improve load-bearing capacity and disassembly and assembly flexibility.
The door suction device is realized with accurate limits, easy disassembly and assembly, and good interchangeability, which improves the load-bearing capacity and fixing performance, and avoids the problems of easy deformation of the clamp and not tightly clamped.
Smart Images
Figure CN222432574U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of aviation cabin door structures, relates to a cabin door stop and door stopper design, and specifically relates to a cabin door door stopper structure. Background Art
[0002] The door stopper is mainly used to fix or limit the opening angle of the cabin door during boarding and cabin tasks. It usually includes three parts: a stop base, a rotating assembly, and a connector. At present, the existing door stopper adopts a structure in which a spring clamp and a holder are fixed. These structures result in the existing door stopper having a weak load-bearing capacity, poor workmanship, easy deformation of the spring clamp, and the problem of the clamp and the holder not being tightly connected. In addition, the fixing performance of the above-mentioned traditional door stopper is also poor. Utility Model Content
[0003] In order to solve the above problems, the utility model provides a door stopper structure for a cabin door, which is a door stopper device with precise positioning, convenient assembly and disassembly, and good interchangeability.
[0004] The technical solution of the utility model is as follows:
[0005] A cabin door stopper structure comprises a stop box, a stop cover, a flat head shaft and a spring. The stop box and the stop cover are U-shaped materials. The stop box is installed on the aircraft floor. One end of the stop cover is rotatably connected with one end of the stop box through the flat head shaft. The upper surface of the stop cover is a flat surface. The lower surface of the stop cover and the upper surface of the stop box are staggered so that the stop cover can be installed overlapping with the stop box. The spring is an opening and closing spring, the spring column of which is twisted on the flat head shaft, one elastic seat of the spring is arranged on the upper surface of the stop box, and the other elastic seat of the spring is arranged on the lower surface of the stop cover. The spring provides supporting elastic force for the stop box and the stop cover.
[0006] Furthermore, the heights of the stop box and the stop cover are less than the height of the aircraft door from the ground, and the highest height of the stop cover erected under the action of the spring is greater than the height of the aircraft door from the ground.
[0007] Furthermore, the stop cover corresponds to the one-sided arc of the flat head shaft.
[0008] Furthermore, a buffer layer is provided on the upper surface of the stop cover.
[0009] Furthermore, a protruding edge is provided at one end of the stop box which is opposite to the flat head shaft, and the height of the protruding edge is greater than the height of the aircraft cabin door from the ground.
[0010] Furthermore, it also includes a gasket, the flat head shaft extends out of the edges of the stop box and the stop cover, and the outer end of the flat head shaft is sleeved with a gasket.
[0011] Furthermore, a pin hole is radially provided on the flat head shaft, and a cotter pin passes through the pin hole of the flat head shaft to fix the flat head shaft.
[0012] Furthermore, the lower surface of the stop cover is a cover plate structure for the stop box, and the U-shaped groove of the stop cover is engaged with the outside of the stop box.
[0013] Further, the stop box is installed on the aircraft floor through a detachable structure.
[0014] The beneficial effects of the utility model are as follows:
[0015] 1. The stop box and stop cover designed for the hatch door stopper device of the utility model are made of U-shaped materials, which have good processability and load-bearing capacity;
[0016] 2. The stop box and the stop cover are connected by a rotating shaft assembly, which improves the load-bearing capacity, automatic rotation and disassembly flexibility of the door stop device;
[0017] 3. The shaft assembly is connected by a quick-release device, which is mainly composed of a flat shaft, a washer, a spring and a cotter pin. It is easy to disassemble and assemble and has good interchangeability.
[0018] 4. The stop cover is provided with a buffer layer, which can buffer the impact of the hatch opening, and with the action of the spring force, it can provide a certain static friction force to the hatch after the hatch is opened to prevent the hatch from shaking;
[0019] 5. The rear end of the stop box is provided with a protruding edge to prevent the door from passing over the door stopper device, thus playing an effective insurance role;
[0020] 6. The door suction device is easy to use. When the hatch is opened, it can automatically remove the impact force when the hatch is opened through the spring force and the buffer layer, and automatically maintain the open state of the hatch. When the hatch is closed, the static friction force maintained by the door suction device on the hatch can be contacted by pressing or stepping on the stop cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the structure of the door stopper device;
[0022] Figure 2 This is the appearance diagram of the stop box;
[0023] Figure 3 This is the appearance diagram of the stop cover;
[0024] Figure 4 This is a schematic diagram of the installation of the rotating assembly;
[0025] Figure 5 This is a working schematic diagram of the door stopper device;
[0026] Among them: 1-stop box, 2-stop cover, 3-spring, 4-flat shaft, 5-washer, 6-split pin. DETAILED DESCRIPTION
[0027] This section is an embodiment of the utility model, which is used to explain and illustrate the technical solution of the utility model. In the absence of conflict, the embodiments of the utility model and the features in the embodiments can be combined with each other.
[0028] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating directions or positional relationships are based on the orientations or positional relationships of the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or case referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be interpreted in a broad sense, for example, it can be a fixed connection, a detachable connection or an integrated connection; it can be a mechanical connection or a point connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood by specific circumstances.
[0030] Embodiment 1:
[0031] A cabin door stopper structure comprises a stop box 1, a stop cover 2, a flat head shaft 3 and a spring 4. The stop box 1 and the stop cover 2 are U-shaped materials. The stop box 1 is installed on the aircraft floor. One end of the stop cover 2 is rotatably connected to one end of the stop box 1 through the flat head shaft 3. The upper surface of the stop cover 2 is a flat surface. The lower surface of the stop cover 2 and the upper surface of the stop box 1 are staggered so that the stop cover 2 can be installed overlapping with the stop box 1. The spring 4 is an opening and closing spring, and its spring column is twisted on the flat head shaft 3. One elastic seat of the spring 4 is arranged on the upper surface of the stop box 1, and the other elastic seat of the spring 4 is arranged on the lower surface of the stop cover 2. The spring 4 provides supporting elastic force for the stop box 1 and the stop cover 2.
[0032] The heights of the stop box 1 and the stop cover 2 are less than the height of the aircraft door from the ground, and the highest height of the stop cover 2 erected under the force of the spring 4 is greater than the height of the aircraft door from the ground.
[0033] The stop cover 2 corresponds to the one-sided arc of the flat head shaft 3.
[0034] The upper surface of the stop cover 2 is provided with a buffer layer.
[0035] The end of the stop box 1 opposite to the flat head shaft 3 is provided with a protruding edge, and the height of the protruding edge is greater than the height of the aircraft cabin door from the ground.
[0036] It also includes a gasket 5. The flat head shaft 3 extends out of the edges of the stop box 1 and the stop cover 2, and the outer end of the flat head shaft 3 is sleeved with the gasket 5.
[0037] The flat head shaft 3 is provided with a pin hole in the radial direction, and the cotter pin 6 fixes the flat head shaft 3 by passing through the pin hole of the flat head shaft 3 .
[0038] The lower surface of the stop cover 2 is a cover plate structure for the stop box 1 , and the U-shaped groove of the stop cover 2 is engaged with the outside of the stop box 1 .
[0039] The stop box 1 is installed on the aircraft floor through a detachable structure.
[0040] Embodiment 2:
[0041] The utility model provides a novel door stopper device for a hatch, comprising a stop box 1, a stop cover 2 and a rotating assembly; wherein each rotating assembly comprises a spring 4, a flat head shaft 3, a washer 5 and a cotter pin 6.
[0042] In the rotating assembly, the flat-head shaft 3 is a standard cylindrical part, and the outer wall of the cylinder is galvanized and passivated; the spring 4 is an opening and closing spring steel wire; the flat-head shaft 3 is connected with the stop seat 1 and the stop cover 2; the stop cover 2, the stop box 1, the spring 4, the washer 5 and the cotter pin 6 are sequentially inserted into the flat-head shaft 3; the spring 4 limits the stop cover 2 from moving along the axis of the flat-head shaft 3.
[0043] The door suction device of the utility model is installed on the floor surface, and is used for stopping, limiting and fixing the cabin door; the installation method of the door suction device is a detachable installation, which is convenient for adjusting the opening and closing degree of the cabin door.
[0044] In particular, the rotating assembly is of latch type or snap-on type.
[0045] The stopper 1 is screwed to the floor, and the stopper cover 2 is rotated to limit the opening angle through the spring 4. When working, the door stopper device is installed on the aircraft floor through the locking device, and the cabin door sweeps the opening angle of the stopper cover until the stopper cover 2 rotates to the dead point, and the cabin door fixes the opening angle. When not working, the cabin door does not contact the stopper cover 2, and the stopper cover 2 is released by the potential energy of the spring to return to the natural state.
[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the field can easily think of various equivalent modifications or substitutions within the technical scope disclosed in the utility model, and these modifications or substitutions should be included in the protection scope of the utility model.
Claims
1. A door stopper structure for a cabin door, characterized in that: The invention comprises a stop box (1), a stop cover (2), a flat head shaft (3) and a spring (4). The stop box (1) and the stop cover (2) are U-shaped materials. The stop box (1) is installed on the floor of an aircraft. One end of the stop cover (2) is rotatably connected with one end of the stop box (1) via the flat head shaft (3). The upper surface of the stop cover (2) is a flat surface. The lower surface of the stop cover (2) and the upper surface of the stop box (1) are arranged in an interlaced manner so that the stop cover (2) can be installed overlapping with the stop box (1). The spring (4) is an opening and closing spring. The spring column of the spring (4) is twisted on the flat head shaft (3). One elastic seat of the spring (4) is arranged on the upper surface of the stop box (1), and the other elastic seat of the spring (4) is arranged on the lower surface of the stop cover (2). The spring (4) provides supporting elastic force for the stop box (1) and the stop cover (2).
2. A door stopper structure for a hatch door according to claim 1, characterized in that: The heights of the stop box (1) and the stop cover (2) are less than the height of the aircraft cabin door from the ground, and the highest height of the stop cover (2) erected under the action of the spring (4) is greater than the height of the aircraft cabin door from the ground.
3. A door stopper structure for a hatch door according to claim 1, characterized in that: The stop cover (2) corresponds to the one-sided arc shape of the flat head shaft (3).
4. A door stopper structure for a hatch door according to claim 1, characterized in that: The upper surface of the stop cover (2) is provided with a buffer layer.
5. A door stopper structure for a hatch door according to claim 2, characterized in that: The end of the stop box (1) opposite to the flat head shaft (3) is provided with a protruding edge, and the height of the protruding edge is greater than the height of the aircraft cabin door from the ground.
6. A door stopper structure for a hatch door according to claim 1, characterized in that: The invention also comprises a gasket (5). The flat head shaft (3) extends out of the edges of the stop box (1) and the stop cover (2), and the outer end of the flat head shaft (3) is sleeved with a gasket (5).
7. The door stopper structure of a hatch door according to claim 1, characterized in that: The flat head shaft (3) is provided with a pin hole in the radial direction, and the split pin (6) passes through the pin hole of the flat head shaft (3) to fix the flat head shaft (3).
8. The door stopper structure of a hatch door according to claim 1, characterized in that: The lower surface of the stop cover (2) is a cover plate structure for the stop box (1), and the U-shaped groove of the stop cover (2) is engaged with the outside of the stop box (1).
9. The door stopper structure of a hatch door according to claim 1, characterized in that: The stop box (1) is installed on the aircraft floor through a detachable structure.