CN214776608U

CN214776608U - Double open type separate-insertion thermal protection device

Info

Publication number: CN214776608U
Application number: CN202121061744.6U
Authority: CN
Inventors: 不公告发明人
Original assignee: Sichuan Xinghe Power Space Technology Co ltd; Beijing Xinghe Power Equipment Technology Co Ltd; Galactic Energy Beijing Space Technology Co Ltd
Current assignee: Sichuan Xinghe Power Space Technology Co ltd; Beijing Xinghe Power Equipment Technology Co Ltd; Galactic Energy Beijing Space Technology Co Ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-11-19
Anticipated expiration: 2031-05-18

Abstract

The utility model provides a hot protector is inserted to double open branch, include: the rotary structure comprises a rotary shaft support, a rotary shaft and torsional springs, the rotary shaft support is arranged on the bottom shielding plate, the rotary shaft is rotatably connected with the rotary shaft support, and the torsional springs are respectively arranged at two ends of the rotary shaft; the supporting and fixing structure comprises a fixing plate, a bottom side plate and a side wall plate, wherein an opening is formed at one end of the fixing plate, the bottom side plate is arranged at the other end of the fixing plate, and the two openings are matched with each other to form a shape matched with the plugs; the side wall plates are respectively arranged at two sides of the bottom side plate, and each side wall plate is provided with a sliding groove; the bottom side plate and the side wall plate are both fixedly connected with the rotating shaft, and the side wall plate is also fixedly connected with the torsion spring; each sliding compression structure includes a sliding plate slidably coupled with the sliding channel and a plurality of compression springs disposed between the sliding plate and the bottom side plate. The utility model discloses can effectually protect to the row of injecting.

Description

Double open type separate-insertion thermal protection device

Technical Field

The utility model belongs to the technical field of hypersonic aircraft, concretely relates to hot protector is inserted to double open branch.

Background

Hypersonic aircraft generally refers to winged or wingless aircraft, such as airplanes, shells, missiles, and the like, with mach numbers above 5. The aircraft has the characteristics of long range, high speed, good maneuverability, large interception difficulty and the like, and is receiving wide attention of military and strong countries in the world. Because the aircraft flies in the atmosphere for a long time by means of aerodynamic force, the aerodynamic heating is serious and durable, and a series of adverse effects can be generated on the aircraft structure. Therefore, thermal protection of the aircraft structural body and its corresponding equipment, connectors must be done. The bottom shielding plate is positioned at the bottom of the whole aircraft and used for preventing hot air flow at the bottom of the aircraft from entering the interior of the aircraft, and the bottom shielding plate is provided with aircraft attitude control power system equipment, a sensor, a converter, a separation plug, a socket and other equipment. Because the bottom force and heat environment condition of the aircraft is severe, the bottom shielding plate is flushed by high heat flow, high speed and high dynamic pressure gas, and heat protection measures of the bottom shielding plate, equipment on the bottom shielding plate, equipment for separating a plug, a socket and the like must be taken. The plug is located at the bottom of the aircraft and is used for communicating with a cable network between the aircraft and the carrier to transmit electric signals. When the vehicle is separated from the aircraft structure, the connector for connecting the cable network between the aircraft and the vehicle is also separated under the action of electromagnetic force or mechanical tension, so that the integral separation of the aircraft and the vehicle is realized. For an aircraft, after separation from the carrier, the entire patch panel would be exposed directly to the bottom of the aircraft, subject to the bottom hot air currents. If the thermal environment is severe, the phenomena of separate insertion short circuit or burnthrough occur, which can cause the phenomena of aircraft electrical signal disorder, hot air flow entering the cabin and the like, bring catastrophic failure to the whole aircraft, and directly influence the success or failure of flight.

The conventional thermal protection measure of the add-drop is to resist external pneumatic heat by the aid of an add-drop structure, and after the plug and the socket are separated, the add-drop structure automatically realizes short-circuit protection of electric signals under the action of electromagnetic force, so that the electric signals are prevented from being heated and disordered. However, when the aerodynamic thermal environment is severe and the temperature at the bottom of the aircraft is too high, the active heat-resistant mode only depending on the structure of the add-drop easily causes the whole add-drop to be burnt out and burnt through, thereby affecting the normal flight of the aircraft.

Patent document 1(CN105644796A) provides a push-pull type separate-insertion thermal protection device, which includes a bottom shielding plate, a separate insertion, two brackets, two cover plates, two heat-proof plates and a pressure spring; the bottom shielding plate is provided with a plug-in mounting hole, and the shape of the plug-in mounting hole is matched with that of the plug-in; the bracket is fixed on the bottom shielding plate and is butted to form a rectangular frame, and the inner wall of the bottom of the frame is provided with two circular bosses for mounting a pressure spring; the two cover plates are rectangular plates, one end of each cover plate is fixed on the support, and the lower surface of the other end of each cover plate is provided with a limiting boss for limiting the heat-proof plate; the distance between the two cover plates is larger than the diameter of the transplanting; each heat-proof plate comprises a rectangular plate, the upper surface of one long side of the rectangular plate is provided with a limiting boss, and the limiting boss is matched with the limiting boss of the cover plate to form an L-shaped lap joint; the lower surface of the rectangular plate is provided with a pressure spring support for mounting a pressure spring; after the thermal protection device is closed, the split plug is not clamped by four pressure spring supports connected with the two rectangular plates; the pressure spring is arranged on the pressure spring support and the circular bosses of the support and is in a compressed state when the heat-proof plate is opened. The patent document has the disadvantages that 1, the two heat-proof plates are rectangular plates, and the split plugs are circular, so that the heat-proof plates cannot play a sealing role when being plugged; 2. because the heat-proof plates only move horizontally, when the heat-proof plates are installed and separately inserted, the problem of inconvenient operation can exist due to limited space.

Accordingly, there is a need to provide a hot-plug protection device that is easy to install and that is capable of achieving effective sealing.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present invention provides a dual-split add-drop thermal protection device, which can solve at least one of the above problems.

The utility model adopts the technical proposal that:

the embodiment of the utility model provides a hot protector is inserted to double open branch, include: the protective device comprises two protective devices which are symmetrically arranged, each protective device comprises a rotating structure, a supporting and fixing structure and a sliding compression structure, the rotating structure comprises two rotating shaft supports, a rotating shaft and two torsional springs, the rotating shaft supports are arranged on a bottom shielding plate, the rotating shaft is rotatably connected with the rotating shaft supports, and the two torsional springs are respectively arranged at two ends of the rotating shaft; the supporting and fixing structures comprise fixing plates, bottom side plates and two side wall plates, wherein an opening is formed at one end of each fixing plate, the bottom side plates are arranged at the other ends of the fixing plates, and the openings of the fixing plates of the two supporting and fixing structures are matched with each other to form a shape matched with the plugs; the two side wall plates are respectively arranged at two sides of the bottom side plate; the bottom side plate and the side wall plate are both fixedly connected with the rotating shaft, and the side wall plate is also fixedly connected with the torsion spring; each sliding compression structure comprises a sliding plate and a plurality of compression springs, the sliding plate is connected with the side wall plate in a sliding mode, and the compression springs are arranged between the sliding plate and the bottom side plate.

The embodiment of the utility model provides a double open type divides and inserts hot protector, through rotating-structure, support fixed knot structure and sliding compression structure mutually support for no matter divide and insert not connect, divide and insert the state of connecting or dividing and inserting the separation and can both effectual protection divide and insert and the socket, and have automatic locking function, convenient operation, economy is suitable for.

Drawings

Fig. 1 is a schematic view of a dual-open type add-drop thermal protection device according to an embodiment of the present invention in an open state;

fig. 2 is a schematic view of a double-open type add-drop thermal protection device according to an embodiment of the present invention in a maximum open state;

fig. 3 is a schematic view of a dual-open type add-drop thermal protection device according to an embodiment of the present invention in a closed state;

fig. 4 is a schematic view of a rotary structure according to an embodiment of the present invention;

fig. 5 is a schematic view of a supporting and fixing structure according to an embodiment of the present invention;

fig. 6 is a schematic view of a sliding compression structure according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the accompanying drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 6, an embodiment of the present invention provides a dual-open type add-drop thermal protection device, including: two protector that the symmetry set up, every protector includes revolution mechanic, supports fixed knot structure and slip compression structure.

Among them, as shown in fig. 1 to 4, the rotating structure may include two rotating shaft holders 1, a rotating shaft 2, and two torsion springs 3. The rotary shaft support 1 is disposed on a bottom cover (not shown), for example, the rotary shaft support 1 and the bottom cover of the aircraft can be connected by welding, and the rotary shaft support 1 is a fulcrum of the whole device. Rotation axis 2 rotates with rotation axis support 1 and is connected, for the connecting rod part that drives whole device, is clearance fit between rotation axis 2 and the rotation axis support 1, guarantees to rotate freely between rotation axis support 1 and the rotation axis 2. The two torsion springs 3 are respectively arranged at two ends of the rotating shaft 2 and fixedly connected with the side wall plates 6. Specifically, the torsion spring 3 may include a spiral section wound around the rotation shaft 2 and an extension section extending along both sides of the spiral end. The torsion spring 3 and the rotation shaft 2 are kept in a relatively stationary state, and when the rotation shaft 2 rotates around the rotation shaft support 1, the torsion spring 3 tends to return to its original state due to the effect of elastic force, and the torsion spring 3 returns to its original position with the rotation shaft 2 without applying external force.

As shown in fig. 1 to 3 and 5, the supporting and securing structure may comprise a securing plate 4, a bottom side plate 5 and two side wall plates 6. Wherein, the opening 7 is formed on one end of the fixed plate 4, the other end is provided with a bottom side plate 5, the openings 7 of the fixed plates of the two rotating devices are mutually matched to form a shape matched with the inserting and separating 13 so as to be tightly attached to the outer peripheral surface of the inserting and separating, for example, when the inserting and separating 13 is cylindrical, the two openings can be respectively formed into semicircular openings so as to be matched to form a circle matched with the outer peripheral surface of the inserting and separating 13, and the size of the opening can be determined according to the size of the inserting and separating. Thus, when the bottom shielding plate is inserted and separated, the openings of the two fixing plates can be tightly attached to the outer peripheral surface of the separated insertion, so that the bottom shielding plate can be effectively sealed. Two side wall plates 6 are respectively provided on both sides of the bottom side plate 5, and a slide groove 8 is provided on each side wall plate 6, and the slide groove 8 may be provided at a middle position in the longitudinal direction of the side wall plate 6. The bottom side plate 5 and the side wall plate 6 are fixedly connected to the rotary shaft 2, for example, by welding. In addition, the side wall plate 6 is fixedly connected to an extension of the torsion spring 3, for example, by welding. In this way, the supporting and fixing structure can be firmly connected with the rotating structure and rotate relative to the rotating shaft. By applying external force to the supporting and fixing structure, the supporting and fixing structure can rotate upwards relative to the rotating shaft, for example, the supporting and fixing structure can rotate to a position with an included angle of 60-70 degrees relative to the horizontal plane. When the external force is removed, the spring can return to the initial state, namely the state with the rotation angle of 0, under the action of the torsion spring.

As shown in fig. 1 to 4 and 6, in the embodiment of the present invention, each sliding device includes a sliding plate 9 and a plurality of compression springs 10.

Wherein the sliding plate 9 is slidably connected with the sliding groove 8. In the embodiment of the present invention, the sliding plate 9 is a convex structure, i.e. a square plate with protruding portions formed at both ends, and the protruding portions are slidably disposed in the sliding grooves 8. The protruding part is in clearance fit with the sliding groove of the side wall plate 6, so that the sliding plate 9 can move forward and backward conveniently.

A compression spring 10 is provided between the slide plate 9 and the bottom side plate 5 for providing sufficient hold down force to the slide plate 9, the compression amount of the spring being 0 in the closed condition of the device, the spring having a tendency to return to its original position when the device is pushed open by the split plug, thereby causing the slide plate 9 to act as a hold down for the split plug 13 for securing the split plug 13 in a compressed state when the two slide plates 9 are opened. In a specific implementation, the compression spring 10 may be fixed between the sliding plate 9 and the bottom side plate 5 by a first spring sleeve 11 and a second spring sleeve 12, the first spring sleeve 11 is connected with the bottom side plate 5, the second spring sleeve 12 is connected with the sliding plate 9, and the first spring sleeve and the second spring sleeve may be connected to the bottom side plate and the sliding plate by welding, respectively. Both ends of the compression spring 10 are inserted into the first spring sleeve 11 and the second spring sleeve 12, respectively, so that they can be stably fixed to the diameters of the bottom side plate and the sliding plate. The diameter of the first spring sleeve 11 is larger than that of the second spring sleeve 12, for example, the diameter of the first spring sleeve 11 may be 2-3 mm larger than that of the second spring sleeve 12, so that the diameters of the spring sleeves on both sides are different, which can satisfy the space of the limit position of spring compression, and thus the two spring sleeves do not interfere with each other, and fig. 2 shows the limit position of the spring.

In the embodiment of the utility model, the rotary shaft support, the rotary shaft, the side wall plate, the fixed plate, the bottom side plate, the spring sleeve and the sliding plate can be made of high temperature resistant metal materials such as GH4169, GH1131 and the like; meanwhile, according to specific temperature environment conditions, 45 steel, stainless steel, aluminum alloy, titanium alloy and other metal materials can be used. The torsion spring can be made of materials with better elastic property such as 55Si2Mn and 60Si2MnA, and the common spring material 65Mn can be adopted as the compression spring.

The utility model discloses a divide and insert protector's theory of operation does:

when the split plug needs to be installed, firstly, the sliding plates are pulled backwards (manually) along the sliding grooves, so that the two sliding plates are in a separated state, and at the moment, the compression spring is compressed; then, the supporting and fixing structure is lifted upwards (manually) so that the supporting and fixing structure rotates upwards to a certain angle along the rotating shaft; at this time, the separating plug can be installed on the separating plug installation hole of the bottom shielding plate. After the area divides and inserts the installation, remove the external force of exerting, at this moment, under the effect of torsional spring, support fixed knot and construct and can automatic rotate downwards and resume initial condition for the fixed plate closely laminates with dividing and inserting and be in the same place. Meanwhile, under the action of the compression spring, the sliding plate moves forwards along the sliding groove and is in contact with and clamps the add-drop. After the extension socket is pulled out, the sliding plate can be in a closed state under the action of the compression spring, and the phenomena of burnout, burnthrough and the like of the extension socket under the action of severe thermal environment load at the bottom are avoided after the separation socket is separated from the carrier.

In conclusion, the embodiment of the present invention provides a double-open type add-drop thermal protection device, which has at least the following advantages:

1. when the extension socket is not connected or the extension socket is pulled out, the sliding plate is in a closed state, the socket of the extension socket can be protected and prevented from dust, and after the separation of the aircraft and the carrier is ensured, the extension socket does not burn out, burn through and the like under the action of the load of the severe thermal environment at the bottom.

2. When the extension is connected, the fixed plate can closely laminate with the extension, can play protection and dustproof effect to aircraft inside, and the clamping force can be exerted to the extension to the sliding plate under compression spring's effect simultaneously to can effectually fix the extension.

3. The clamping and rotating effects can be automatically realized through the compression spring and the torsion spring, and the turnover effect of the device can be realized through the torsion spring, so that the device is simple and convenient to operate. Meanwhile, the device is turned upwards, so that the installation space of the extension socket is enlarged, and the extension socket is convenient to install.

The above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A dual split hot-plug protection device, comprising: the protective device comprises two protective devices which are symmetrically arranged, each protective device comprises a rotating structure, a supporting and fixing structure and a sliding compression structure, the rotating structure comprises two rotating shaft supports, a rotating shaft and two torsional springs, the rotating shaft supports are arranged on a bottom shielding plate, the rotating shaft is rotatably connected with the rotating shaft supports, and the two torsional springs are respectively arranged at two ends of the rotating shaft;

the supporting and fixing structures comprise fixing plates, bottom side plates and two side wall plates, wherein an opening is formed at one end of each fixing plate, the bottom side plates are arranged at the other ends of the fixing plates, and the openings of the fixing plates of the two supporting and fixing structures are matched with each other to form a shape matched with the plugs; the two side wall plates are respectively arranged at two sides of the bottom side plate; the bottom side plate and the side wall plate are both fixedly connected with the rotating shaft, and the side wall plate is also fixedly connected with the torsion spring;

each sliding compression structure comprises a sliding plate and a plurality of compression springs, the sliding plate is connected with the side wall plate in a sliding mode, and the compression springs are arranged between the sliding plate and the bottom side plate.

2. The dual split add-drop thermal protector as claimed in claim 1, wherein the side wall plate is provided with a sliding slot, and the sliding plate is slidably connected with the sliding slot.

3. The dual split add-drop thermal protector of claim 1, wherein the compression spring is secured between the sliding plate and the bottom side plate by a first spring sleeve and a second spring sleeve, the first spring sleeve being connected to the bottom side plate, the second spring sleeve being connected to the sliding plate, both ends of the compression spring being inserted into the first spring sleeve and the second spring sleeve, respectively.

4. The dual split add-drop thermal protector of claim 3, wherein the diameter of said first spring sleeve is greater than the diameter of said second spring sleeve.

5. The dual split add-drop thermal protector as claimed in claim 4, wherein the diameter of the first spring sleeve is 2-3 mm larger than the diameter of the second spring sleeve.

6. The dual split add-drop thermal shield apparatus of claim 1, wherein each slide includes 3 compression springs.

7. The dual split add-drop thermal protector of claim 2, wherein the sliding plate is a square plate with protrusions formed on both ends, the protrusions being slidably disposed in the sliding grooves.

8. The dual split add-drop thermal protector as claimed in claim 1, wherein said bottom side plate and said side wall plate are connected to said rotating shaft by welding;

the torsion spring is connected with the side wall plate through welding.

9. The dual split add-drop thermal protector of claim 3, wherein said first spring sleeve and said second spring sleeve are attached to said bottom side plate and said slide plate, respectively, by welding.