Locking device of airplane toilet door

Abstract

The utility model relates to the technical field of airplane toilet doors, and discloses a locking device of an airplane toilet door, the toilet door comprises a door frame and a door body installed in the door frame, both ends of the door body along the height direction are provided with slots, the door frame opposite to the slots is provided with insertion holes, the surface of the door body is provided with an installation groove, the installation groove is communicated with the slots, and the insertion holes are communicated with the installation groove. The locking device comprises a spring, a rotating shaft, a locking block and a locking screw; the spring is arranged in the slot; the rotating shaft is arranged in the slot and provided with a screw hole formed in the width direction of the door body, the first end of the rotating shaft abuts against the spring, and the second end of the rotating shaft extends out of the insertion hole of the door frame; the locking block is mounted in the mounting groove and provided with a through hole formed in the width direction of the door body; one end of the locking screw penetrates through the through hole of the locking block to be installed in the screw hole of the rotating shaft. According to the locking device, the stable structure of the door body can be guaranteed, and meanwhile the door body is convenient to disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft toilet doors, in particular to a locking device for aircraft toilet doors. Background Art

[0002] Some toilet doors on civil aircraft are fixed in the door frame by a retractable hinge. During the turbulence of the aircraft, the hinge may be accidentally retracted or the door may be displaced during opening and closing. Eventually, under the action of vibration or external force, the door may fall off the door frame, which may cause risks such as personal injury, making the door structure unstable and posing a safety hazard. Utility Model Content

[0003] The utility model aims to provide a locking device for an aircraft toilet door, which can ensure the stability of the door structure and facilitate the disassembly of the door.

[0004] In order to achieve the above-mentioned object, the utility model provides a locking device for an aircraft toilet door, the toilet door comprises a door frame and a door body installed in the door frame, slots are arranged at both ends of the door body in the height direction, a plug hole is arranged on the door frame opposite to the slot, a mounting groove is arranged on the surface of the door body, the mounting groove is communicated with the slot, and the locking device comprises:

[0005] a spring, disposed in the slot;

[0006] A rotating shaft is arranged in the slot, the rotating shaft is provided with screw holes arranged along the width direction of the door body, a first end of the rotating shaft abuts against the spring, a second end of the rotating shaft extends outwardly from the insertion hole of the door frame, and the rotating shaft is configured to enable the door body to rotate in the door frame to open or close the door;

[0007] A locking block installed in the installation groove, wherein the locking block is provided with a through hole arranged along the width direction of the door body; and

[0008] A locking screw, one end of which passes through the through hole of the locking block and is installed in the screw hole of the rotating shaft, is used to limit the position of the rotating shaft in the slot.

[0009] In some embodiments, the ultimate compression length of the spring is greater than the sum of the height of the shaft extending out of the door frame and the height of the insertion hole.

[0010] In some embodiments, the inner diameter of the slot is equal to the inner diameter of the jack, and both are larger than the diameter of the shaft.

[0011] In some embodiments, the locking screw includes a screw portion and a knob portion connected to one end of the screw portion, and the screw portion passes through the through hole of the locking block and is installed in the screw hole of the rotating shaft.

[0012] In some embodiments, the locking block includes a lining plate, a protrusion arranged on a first side of the lining plate, and a mounting block arranged on a second side of the lining plate, the protrusion is configured to be installed in the mounting groove, the lining plate and the mounting block are located outside the surface of the door body, and the through hole is arranged in the mounting block.

[0013] In some embodiments, a supporting groove is provided at one end of the protrusion close to the mounting block, and the supporting groove is communicated with the through hole.

[0014] In some embodiments, the radial cross-section of the support groove is semicircular, and the diameter of the support groove is equal to the diameter of the through hole.

[0015] In some embodiments, the width of the backing plate is greater than the width of the protrusion, and the width of the backing plate is equal to the width of the mounting block.

[0016] In some embodiments, the locking block is a stainless steel block, and the lining plate, the protrusion and the mounting block are integrally formed.

[0017] The utility model provides a locking device for an aircraft toilet door. Compared with the prior art, the utility model has the following beneficial effects:

[0018] The rotating shaft is provided with screw holes arranged along the width direction of the door body, the first end of the rotating shaft is in contact with the spring, and the second end of the rotating shaft extends outward from the insertion hole of the door frame. The rotating shaft is configured to enable the door body to rotate in the door frame to open or close the door, and one end of the locking screw passes through the through hole of the locking block and is installed in the screw hole of the rotating shaft, which is used to limit the position of the rotating shaft in the slot, thereby ensuring the stability of the rotating structure of the door body in the door frame, and the rotating shaft can be extended and retracted after removing the locking screw, thereby facilitating the disassembly of the door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the partial structure of an aircraft toilet door provided in an embodiment of the utility model.

[0020] Figure 2 A schematic diagram of the partial cross-sectional structure of an aircraft toilet door provided in an embodiment of the utility model.

[0021] Figure 3 This is a schematic diagram of the exploded and enlarged structure of the locking block and locking screw of the locking device of the aircraft toilet door provided by an embodiment of the utility model.

[0022] Figure 4 This is a schematic diagram of an enlarged three-dimensional structure of a locking block of a locking device for an aircraft toilet door provided by an embodiment of the utility model.

[0023] In the figure: 1, door frame; 11, socket; 2, door body; 21, slot; 22, mounting groove; 3, spring; 4, shaft; 41, screw hole; 5, locking block; 51, through hole; 52, lining plate; 53, protrusion; 531, support groove; 54, mounting block; 6, locking screw; 61, screw rod part; 62, knob part. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0025] It should be understood that, in the description of the present application, the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element 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 application. The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, that is, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, unless otherwise specified, "multiple" means two or more.

[0026] like Figure 1-4 As shown, a locking device for an aircraft toilet door according to an embodiment of the utility model comprises a door frame 1 and a door body 2 installed in the door frame 1, slots 21 are provided at both ends of the door body 2 in the height direction, a plug hole 11 is provided on the door frame 1 opposite to the slot 21, a mounting groove 22 is provided on the surface of the door body 2, the mounting groove 22 is communicated with the slot 21, and the locking device comprises a spring 3, a rotating shaft 4, a locking block 5 and a locking screw 6.

[0027] The spring 3 is arranged in the slot 21; the rotating shaft 4 is arranged in the slot 21, and the rotating shaft 4 is provided with a screw hole 41 arranged along the width direction of the door body 2, the first end of the rotating shaft 4 abuts against the spring 3, and the second end of the rotating shaft 4 extends outwardly to the insertion hole 11 of the door frame 1, and the rotating shaft 4 is configured to enable the door body 2 to rotate in the door frame 1 to open or close the door; the locking block 5 is installed in the installation groove 22, and the locking block 5 is provided with a through hole 51 arranged along the width direction of the door body 2; one end of the locking screw 6 passes through the through hole 51 of the locking block 5 and is installed in the screw hole 41 of the rotating shaft 4, for limiting the position of the rotating shaft 4 in the slot 21.

[0028] Based on the above-mentioned structural setting, the rotating shaft 4 is provided with a screw hole 41 arranged along the width direction of the door body 2, the first end of the rotating shaft 4 is abutted against the spring 3, and the second end of the rotating shaft 4 extends outwardly to the insertion hole 11 of the door frame 1. The rotating shaft 4 is configured to enable the door body 2 to rotate in the door frame 1 to open or close the door, and one end of the locking screw 6 passes through the through hole 51 of the locking block 5 and is installed in the screw hole 41 of the rotating shaft 4, which is used to limit the position of the rotating shaft 4 in the slot 21, so as to ensure that the rotating structure of the door body 2 in the door frame 1 is stable, and the rotating shaft 4 can be extended and retracted after removing the locking screw 6, thereby facilitating the disassembly of the door body 2.

[0029] like Figure 2 As shown, in some embodiments, the ultimate compression length of the spring 3 is greater than the sum of the height of the shaft 4 extending out of the door frame 1 and the height of the insertion hole 11. By removing the locking screw 6 from the screw hole 41 of the shaft 4, a downward force is applied to the end of the shaft 4 so that the spring 3 is compressed, and the shaft 4 is completely in the slot 21. At this time, it is convenient to directly remove the door body 2 from the door frame 1 for maintenance.

[0030] Specifically, the inner diameter of the slot 21 is equal to the inner diameter of the insertion hole 11, and both are larger than the diameter of the shaft 4. When the door body 2 needs to rotate to open or close the door, the shaft 4 can rotate in the insertion hole 11 of the door frame 1.

[0031] like Figure 3 As shown, the locking screw 6 includes a screw portion 61 and a knob portion 62 connected to one end of the screw portion 61. The screw portion 61 passes through the through hole 51 of the locking block 5 and is installed in the screw hole 41 of the rotating shaft 4. The knob portion 62 is conveniently rotated directly by hand to install the screw portion 61.

[0032] like Figure 3 and 4 As shown, the locking block 5 includes a lining plate 52, a protrusion 53 provided on a first side surface of the lining plate 52, and a mounting block 54 provided on a second side surface of the lining plate 52, wherein the protrusion 53 is configured to be installed in the mounting groove 22, thereby defining the position of the locking block 5. The lining plate 52 and the mounting block 54 are located outside the surface of the door body 2, and the through hole 51 is provided in the mounting block 54.

[0033] Specifically, a support groove 531 is provided at one end of the protrusion 53 close to the mounting block 54, and the support groove 531 is communicated with the through hole 51. The locking screw 6 is passed through the through hole 51 and the support groove 531 in sequence, which is convenient for positioning and installation.

[0034] Furthermore, the radial section of the support groove 531 is semicircular, and the diameter of the support groove 531 is equal to the diameter of the through hole 51. The shape and size are used to adapt to the locking screw.

[0035] In one embodiment, the width of the lining plate 52 is greater than the width of the protrusion 53, and the width of the lining plate 52 is equal to the width of the mounting block 54. When the protrusion 53 is installed in the mounting groove 22, the lining plate 52 and the mounting block 54 can be located on the surface of the door body 2, which is convenient for installation and removal.

[0036] In one embodiment, the locking block 5 is a stainless steel block, and the lining plate 52, the protrusion 53 and the mounting block 54 are integrally formed, thereby reducing production costs.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A locking device for an airplane toilet door, the toilet door comprising a door frame and a door body installed in the door frame, slots are provided at both ends of the door body in the height direction, a plug hole is provided on the door frame opposite to the slot, a mounting groove is provided on the surface of the door body, the mounting groove is communicated with the slot, and is characterized in that: The locking device comprises: a spring, disposed in the slot; A rotating shaft is arranged in the slot, the rotating shaft is provided with screw holes arranged along the width direction of the door body, a first end of the rotating shaft abuts against the spring, a second end of the rotating shaft extends outwardly from the insertion hole of the door frame, and the rotating shaft is configured to enable the door body to rotate in the door frame to open or close the door; A locking block installed in the installation groove, wherein the locking block is provided with a through hole arranged along the width direction of the door body; and A locking screw, one end of which passes through the through hole of the locking block and is installed in the screw hole of the rotating shaft, is used to limit the position of the rotating shaft in the slot.

2. The locking device for an aircraft toilet door according to claim 1, characterized in that: The limit compression length of the spring is greater than the sum of the height of the rotating shaft extending out of the door frame and the height of the insertion hole.

3. The locking device for an aircraft toilet door according to claim 1, characterized in that: The inner diameter of the slot is equal to the inner diameter of the insertion hole, and both are larger than the diameter of the rotating shaft.

4. The locking device for an aircraft toilet door according to claim 1, characterized in that: The locking screw comprises a screw rod portion and a knob portion connected to one end of the screw rod, and the screw rod portion passes through the through hole of the locking block and is installed in the screw hole of the rotating shaft.

5. The locking device for an aircraft toilet door according to claim 1, characterized in that: The locking block includes a lining plate, a protrusion arranged on a first side of the lining plate, and a mounting block arranged on a second side of the lining plate, the protrusion is configured to be installed in the mounting groove, the lining plate and the mounting block are located outside the surface of the door body, and the through hole is arranged in the mounting block.

6. The locking device for an aircraft toilet door according to claim 5, characterized in that: A supporting groove is arranged at one end of the protrusion close to the mounting block, and the supporting groove is communicated with the through hole.

7. The locking device for an aircraft toilet door according to claim 6, characterized in that: The radial section of the support groove is semicircular, and the diameter of the support groove is equal to the diameter of the through hole.

8. The locking device for an aircraft toilet door according to claim 5, characterized in that: The width of the lining plate is greater than the width of the protrusion, and the width of the lining plate is equal to the width of the mounting block.

9. The locking device for an aircraft toilet door according to claim 5, characterized in that: The locking block is a stainless steel block, and the lining plate, the protrusion and the mounting block are integrally formed.

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