Cabin door electric door triggering mechanism
By designing a hatch door electric door trigger mechanism including a stop shaft, trigger rocker arm and H-type press rocker arm, the applicability and over-collection of the traditional hatch door trigger mechanism to rotary rising hatch doors is solved, and the problem of the traditional hatch door trigger mechanism to achieve the problem of the rotational rise door is achieved. The accurate triggering and over-receiving control of the super-large and long rotary lifting hatch avoids false alarms and improves the reliability of the equipment.
Patent Information
- Application Number
- CN202323616599.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-28
AI Technical Summary
The traditional aircraft door trigger mechanism is suitable for rotary drop-type closing hatch doors, but not for rotary lift-type closing hatch doors. It is easy to reduce the door strength due to over-collection, and there is a problem that a single point of failure is difficult to solve.
A hatch door door trigger mechanism including a stop shaft, trigger rocker arm, body support, pressurized electric door and spring assembly is designed to achieve rotation through a combination of lightning-type triggered rocker arm and H-type pressurized rocker arm. Accurate triggering and over-collection control of the rising hatch door.
This mechanism can accurately trigger the ultra-large and long rotating lifting hatch, which has the characteristics of no impact on over-collection, large trigger range, and double-limit control, avoiding the occurrence of false alarms, improving the accuracy of triggering and the use of electric doors life.
Smart Images
Figure CN222202880U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of aircraft cabin door status monitoring mechanism design, and in particular to a cabin door electric switch triggering mechanism. Background Art
[0002] The electric switch trigger mechanism of an aircraft cabin door is used to trigger the electric switch so as to monitor the opening and closing status of the aircraft cabin door. The current design background of the aircraft electric switch trigger mechanism is as follows:
[0003] 1. The traditional hatch trigger mechanism is suitable for rotating and falling hatch closing, but is often not suitable for this type of rotating and rising hatch closing.
[0004] 2. Traditional hatch trigger mechanisms often do not have over-reduction conditions, and for such hatches with over-reduction, the electric switch strength is often reduced, causing problems with the mechanism.
[0005] 3. The electrical switches of traditional hatches often have a certain degree of difficulty in dealing with single-point failures.
[0006] Therefore, it is desired to have a technical solution to overcome or at least alleviate at least one of the above-mentioned deficiencies of the prior art. Utility Model Content
[0007] The purpose of this application is to provide a hatch door electric switch triggering mechanism to solve at least one problem existing in the prior art.
[0008] The technical solution of this application is:
[0009] A hatch door electric switch triggering mechanism, comprising:
[0010] A stop shaft, the stop shaft being fixedly mounted on the machine body;
[0011] a trigger rocker arm, the trigger rocker arm being in contact with and connected to the stop shaft and the hatch respectively, and a rotating shaft being fixedly mounted on an end of the trigger rocker arm;
[0012] A machine body support, the machine body support being fixedly mounted on the machine body;
[0013] A push-type switch, the push-type switch is fixedly mounted on the body support;
[0014] A pressing rocker arm, one end of which is connected to the rotating shaft, and the other end is connected to the body support through a spring assembly. A pressing bolt is provided on the pressing rocker arm, and the pressing bolt corresponds to the switch contact of the push-type switch.
[0015] In at least one embodiment of the present application, the trigger rocker arm is lightning-shaped, comprising a first trigger rocker arm segment, a second trigger rocker arm segment, and a third trigger rocker arm segment connected in sequence, wherein:
[0016] The first trigger rocker arm segment is provided with a stop profile, and the trigger rocker arm is in contact and connected with the stop shaft via the stop profile;
[0017] A trigger profile is provided at a position of the third trigger rocker arm segment close to the second trigger rocker arm segment, and the trigger rocker arm is in contact with the hatch through the trigger profile;
[0018] A rotating shaft is installed at a position of the third trigger rocker arm segment away from the second trigger rocker arm segment through bolts.
[0019] In at least one embodiment of the present application, the body support has a first support portion and a second support portion, wherein:
[0020] The push-type switch is fixedly mounted on one end of the first support portion by means of bolts, and an opening is formed in the middle of the first support portion;
[0021] The second supporting portion is disposed at the other end of the first supporting portion, and a predetermined inclination angle is formed between the second supporting portion and the first supporting portion.
[0022] In at least one embodiment of the present application, the pressing rocker arm is H-shaped, including two parallel first pressing rocker arm segments and a second pressing rocker arm segment, wherein:
[0023] One end of the first pressing rocker arm segment and the second pressing rocker arm segment are connected to the rotating shaft through the opening on the first support portion, and the other end is hinged to the corresponding spring assembly. The first pressing rocker arm segment and the second pressing rocker arm segment are both provided with pressing bolts.
[0024] In at least one embodiment of the present application, the spring assembly includes a first spring sleeve, a second spring sleeve, and a compression spring, wherein:
[0025] The first spring sleeve is nested in the second spring sleeve, the compression spring is sleeved on the outside of the two spring sleeves, and the second spring sleeve is installed on the second support portion through a double-ear support.
[0026] In at least one embodiment of the present application, the push-type switch has two switch contacts.
[0027] The utility model shall have at least the following beneficial technical effects:
[0028] The hatch door switch trigger mechanism of the present application is suitable for the indication of extra-large and extra-long rotating rising hatches. It can accurately trigger the switch and has the characteristics of no influence from over-reception, large triggering range, and dual redundancy control, which ensures the accuracy of the triggering and avoids the occurrence of false alarms to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 This is a schematic diagram of a state of a hatch door electric switch trigger mechanism according to an embodiment of the present application;
[0030] Figure 2 This is another state diagram of the hatch door electric switch trigger mechanism of an embodiment of the present application.
[0031] in:
[0032] 1- Stop shaft; 2- Trigger rocker arm; 3- Rotating shaft; 4- Push-type switch; 5- Push rocker arm; 6- Push bolt; 7- Spring assembly. DETAILED DESCRIPTION
[0033] In order to make the purpose, technical solutions and advantages of the implementation of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below in conjunction with the drawings in the embodiments of this application. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of this application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain this application, and should not be understood as limitations on this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The embodiments of this application are described in detail below in conjunction with the drawings.
[0034] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as limiting the scope of protection of this application.
[0035] The following is combined with Figures 1 to 2 This application is described in further detail.
[0036] The present application provides a hatch door switch trigger mechanism, comprising: a stop shaft 1, a trigger rocker arm 2, a rotating shaft 3, a body support, a push-type switch 4, a push rocker arm 5, a push bolt 6 and a spring assembly 7.
[0037] like Figure 1 、 2As shown, the stop shaft 1 is a shaft-like component fixedly mounted on the fuselage. The trigger rocker arm 2 is connected to the stop shaft 1 and the hatch, respectively. A rotating shaft 3, also a shaft-like component, is fixedly mounted on the end of the trigger rocker arm 2. The rotating shaft 3 is a shaft-like component connected to the push rocker arm 2 via bolts. The fuselage support is fixedly mounted on the fuselage, and the push-type switch 4 is fixedly mounted on the fuselage support. One end of the push rocker arm 5 is connected to the rotating shaft 3, and the other end is connected to the fuselage support via a spring assembly 7. The push rocker arm 5 is provided with a push bolt 6, which corresponds to the switch contact of the push-type switch 4.
[0038] In a preferred embodiment of the present application, the trigger rocker arm 2 is a lightning-shaped rod-shaped component, comprising a first, second, and third trigger rocker arm segments connected in sequence. The first trigger rocker arm segment is provided with a stop surface, through which the trigger rocker arm 2 contacts the stop shaft 1. The third trigger rocker arm segment is provided with a trigger surface proximate to the second trigger rocker arm segment, through which the trigger rocker arm 2 contacts the cabin door. A rotating shaft 3 is bolted to the third trigger rocker arm segment away from the second trigger rocker arm segment. In this embodiment, the fuselage support comprises a first support portion and a second support portion. The first support portion is fixedly connected to the fuselage structure, with a push-type switch 4 bolted to one end thereof. The first support portion has an opening in the middle. The second support portion is provided at the other end of the first support portion, with a predetermined inclination angle between the second support portion and the first support portion.
[0039] In a preferred embodiment of the present application, the push rocker arm 5 is H-shaped and includes two parallel first and second push rocker arm segments. One end of each of the first and second push rocker arm segments passes through an opening in the first support portion and is connected to the rotating shaft 3 via a bolt. The other end is hinged to the corresponding spring assembly 7. Both the first and second push rocker arm segments are provided with a push bolt 6. The push-type switch 4 has two corresponding switch contacts.
[0040] In a preferred embodiment of the present application, the spring assembly 7 includes a first spring sleeve, a second spring sleeve and a compression spring, wherein the first spring sleeve is nested in the second spring sleeve, the compression spring is sleeved on the outside of the two spring sleeves, and the second spring sleeve is installed on the second support portion through a double-ear support.
[0041] The hatch door switch trigger mechanism of the present application has the following triggering principle: when the hatch is in the open position, the spring assembly 7 pushes the push rocker arm 5 to rotate, and the push bolt 6 on the push rocker arm 5 contacts the push-type switch 4. In addition, the rotating shaft 3 connected to the push rocker arm 5 rotates, driving the trigger rocker arm 2 to rotate until the stop surface of the trigger rocker arm 2 contacts the stop shaft 1 and stops rotating. At this time, the push-type switch 4 is in a normally closed state. When the hatch gradually changes from open to closed, the hatch pushes the trigger surface of the trigger rocker arm 2 to rotate, and then drives the rotating shaft 3 to rotate. The push rocker arm 5 installed on the rotating shaft 3 rotates accordingly, driving the push bolt 6 to gradually move away from and disengage from the push-type switch 4. At this time, the hatch is in a closed state.
[0042] During the above process, when the hatch is in the open position, the stop surface of the trigger rocker arm 2 should be arranged to contact the stop shaft 1. At this time, the push-type switch 4 is in a pressed state, and there is a certain amount of over-pressing margin to ensure that the push-type switch 4 is in a fully connected state.
[0043] During the above process, when the hatch is in the closed position, as the hatch continues to retract, the force of the hatch will cause the push rocker arm 5 to continue to move away from the push switch 4. At this time, even if the hatch is over-retracted, it will not cause damage to the push switch 4, which has a certain over-retraction control feature. If the push switch 4 is in the off state when the hatch is in the open position and in the on state when the hatch is in the closed position, there is a high possibility that the push switch 4 will be over-pressed when the hatch is over-retracted, thereby damaging the push switch 4 and hindering the normal function of the trigger mechanism.
[0044] The hatch door switch trigger mechanism of the present application is suitable for the indication of extra-large and extra-long rotating rising hatches. It can accurately trigger the switch and has the characteristics of no influence from over-reception, large triggering range, and dual redundancy control, which ensures the accuracy of the triggering and avoids the occurrence of false alarms to the greatest extent.
[0045] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.
Claims
1. A hatch door switch trigger mechanism, It is characterized in that include: A stop shaft (1), wherein the stop shaft (1) is fixedly mounted on the machine body; A trigger rocker arm (2), the trigger rocker arm (2) being in contact with and connected to the stop shaft (1) and the cabin door respectively, and a rotating shaft (3) being fixedly mounted on the end of the trigger rocker arm (2); A machine body support, the machine body support being fixedly mounted on the machine body; A push-type electric switch (4), wherein the push-type electric switch (4) is fixedly mounted on the machine body support; A pressing rocker arm (5), one end of which is connected to the rotating shaft (3), and the other end of which is connected to the machine body support via a spring assembly (7); a pressing bolt (6) is provided on the pressing rocker arm (5), and the pressing bolt (6) corresponds to the switch contact of the push-type switch (4).
2. The door electric switch triggering mechanism according to claim 1, It is characterized in that The trigger rocker arm (2) is in a lightning shape, comprising a first trigger rocker arm segment, a second trigger rocker arm segment and a third trigger rocker arm segment connected in sequence, wherein: The first trigger rocker arm section is provided with a stop profile, and the trigger rocker arm (2) is in contact and connected with the stop shaft (1) via the stop profile; A trigger profile is provided at a position of the third trigger rocker arm section close to the second trigger rocker arm section, and the trigger rocker arm (2) is in contact with the hatch through the trigger profile; A rotating shaft (3) is mounted via bolts at a position of the third trigger rocker arm segment away from the second trigger rocker arm segment.
3. The hatch door electric switch triggering mechanism according to claim 2, It is characterized in that The machine body support has a first support portion and a second support portion, wherein: The push-type switch (4) is fixedly mounted on one end of the first support portion by means of bolts, and an opening is provided in the middle of the first support portion; The second support portion is disposed at the other end of the first support portion, and a predetermined inclination angle is formed between the second support portion and the first support portion.
4. The hatch door electric switch triggering mechanism according to claim 3, It is characterized in that The pressing rocker arm (5) is H-shaped and comprises two first pressing rocker arm sections and a second pressing rocker arm section arranged in parallel, wherein: One end of the first pressing rocker arm section and the second pressing rocker arm section are connected to the rotating shaft (3) through the opening on the first support portion, and the other end is hinged to the corresponding spring assembly (7). The first pressing rocker arm section and the second pressing rocker arm section are both provided with a pressing bolt (6).
5. The door electric switch triggering mechanism according to claim 4, It is characterized in that The spring assembly (7) comprises a first spring sleeve, a second spring sleeve and a compression spring, wherein: The first spring sleeve is nested in the second spring sleeve, the compression spring is sleeved on the outside of the two spring sleeves, and the second spring sleeve is installed on the second support portion through a double-ear support.
6. The door electric switch triggering mechanism according to claim 5, It is characterized in that The push-type switch (4) has two switch contacts.