Aircraft speed brake supporting device

Abstract

The utility model relates to the field of aviation repair, in particular to an airplane speed brake supporting device which comprises a supporting rod, the two ends of the supporting rod are in threaded connection with a first fork-shaped connector and a second fork-shaped connector respectively, and the directions of threads, connected with the end of the supporting rod, of the first fork-shaped connector and the second fork-shaped connector are opposite. A connecting plate is further rotationally installed at the end of the second fork-shaped connector. When an aircraft hydraulic system has no pressure, the device can achieve the function of supporting the speed brake, and therefore the requirement for related repair work of a speed brake cabin is met. Through the design of the positive and negative threaded holes in the two ends of the supporting rod, the length of the supporting device can be adjusted only by rotating the supporting rod according to the requirement for the inclination angle of the speed brake so as to meet the inclination requirement of the speed brake.

Description

TECHNICAL FIELD

[0001] The utility model relates to a supporting device, in particular to an airplane speed brake supporting device, belongs to the field of aviation repair. BACKGROUND

[0002] When a certain type of airplane speed brake is in the open position, its actuating cylinder is not limited and locked, and when the airplane is not supplied with pressure, the speed brake will retract due to its own weight compressing the actuating cylinder piston rod, lacking support when unfolded, and thus leading to the speed brake being in a closed state. The speed brake cabin under the speed brake is provided with other system components and accessories, and during the airplane repair assembly and debugging stage, relevant work needs to be carried out. Since the speed brake is supplied with pressure by the hydraulic system, in order to consider the operation safety, the repair work of the relevant components and accessories in the speed brake cabin can only be carried out when the hydraulic system is not under pressure. However, the speed brake will be in a closed state when the airplane is not supplied with pressure, which leads to the fact that the relevant repair work in the speed brake cabin cannot be carried out in this state. Therefore, an airplane speed brake supporting device is needed to support the speed brake when the airplane is not supplied with pressure, so as to ensure the performance of the relevant repair work in the speed brake cabin. SUMMARY

[0003] In view of the problems in the prior art, the utility model provides an airplane speed brake supporting device.

[0004] The purpose of the utility model can be realized through the following technical scheme:

[0005] An airplane speed brake supporting device, comprising a support rod, first and second fork joints are threadedly connected to the two ends of the support rod, the thread directions of the first and second fork joints connected to the end portions of the support rod are opposite, and a connecting plate is further rotatably installed at the end portion of the second fork joint.

[0006] Optionally, a plurality of through holes are formed in one side of the connecting plate, and a support arm is further connected to the side wall of the connecting plate.

[0007] Optionally, the second fork joint comprises a second cylindrical head and a second connecting end connected at the end portion, and the second cylindrical head is used for threadedly connecting with the internally threaded hole formed at the end portion of the support rod.

[0008] Optionally, a second rotating groove is formed at the end of the second connecting end away from the second cylindrical head, and one end of the support arm is rotatably installed in the second rotating groove.

[0009] Optionally, a pin hole is formed in the end portion of the support arm along the thickness direction and the upper and lower side walls of the second rotating groove, a connecting pin is inserted into the pin hole, and the support arm rotates in the second rotating groove through the connecting pin.

[0010] Optionally, the first clevis joint comprises a first cylindrical head and a first connecting end connected at the end of the first cylindrical head, and the first cylindrical head is used for being screwed with an internally threaded hole formed at the end of the strut.

[0011] Optionally, a first rotating groove is formed at the end of the first connecting end away from the first cylindrical head, and pin holes are formed through the upper and lower sidewalls of the first rotating groove, and a connecting pin is inserted between the two pin holes.

[0012] Optionally, the connecting pin comprises a cylindrical pin, a pull ring is connected to one end of the cylindrical pin, an adapter groove is formed at the other end of the cylindrical pin, a stop piece is rotatably installed in the adapter groove through a rotating shaft, the rotating shaft is rotatably installed at the two sidewalls of the adapter groove, the rotating shaft penetrates the middle part of the stop piece and is fixedly connected with the stop piece, and one end of the stop piece extends to the outside of the adapter groove when the stop piece is coaxial with the cylindrical pin.

[0013] Optionally, a force adding hole is formed through the middle part of the strut, and the outer wall of the strut is further provided with anti-skid lines.

[0014] The beneficial effects of the utility model are as follows:

[0015] The device can support the deceleration plate when the aircraft hydraulic system has no pressure, thereby meeting the repair operation related to the deceleration plate cabin.

[0016] The first clevis joint is designed according to the structural characteristics of the deceleration plate, the connecting plate and the second clevis joint are designed according to the structural characteristics of the deceleration plate cabin, thereby realizing the connection of the deceleration plate support device with the deceleration plate and the deceleration plate cabin structure, and the connecting pin plays a connecting and supporting role. Through the design of the right and left threaded holes at the two ends of the strut, the length of the support device can be adjusted by rotating the strut according to the inclination angle of the deceleration plate, so as to adapt to the inclination requirement of the deceleration plate. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in combination with the drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the connecting pin structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the first clevis joint structure of the utility model.

[0021] Figure 4 It is a schematic diagram of the second clevis joint structure of the utility model.

[0022] In the figure: 1, support rod; 2, first fork joint; 3, second fork joint; 4, connecting pin; 5, pull ring; 6, connecting plate; 7, support arm; 8, anti-skid pattern; 9, force hole; 10, cylindrical pin; 11, stop piece; 12, rotating shaft; 13, first cylindrical head; 14, first connecting end; 15, first rotating groove; 16, pin hole; 17, second rotating groove; 18, second connecting end; 19, second cylindrical head. DETAILED DESCRIPTION

[0023] The technical solutions of the utility model will be described clearly and completely below in combination with the embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-4 As shown in the figure, an aircraft speed brake support device comprises a support rod 1, first and second fork joints 2 and 3 are threadedly connected to the two ends of the support rod 1 respectively, the first and second fork joints 2 and 3 are opposite in thread direction to the end of the support rod 1, and a connecting plate 6 is rotatably installed at the end of the second fork joint 3. The opposite threads at the two ends are arranged, and the first and second fork joints 2 and 3 can be simultaneously increased or decreased in distance from the end of the support rod 1 by screwing the support rod 1.

[0025] Specifically, a plurality of through holes are formed in one side of the connecting plate 6, and a support arm 7 is connected to the side wall of the connecting plate 6. The second fork joint 3 comprises a second connecting end 18 and a second cylindrical head 19 connected at the end, and the second cylindrical head 19 is used for threadedly connecting with the internal threaded hole formed at the end of the support rod 1.

[0026] When supporting the aircraft speed brake, the first fork joint 2 is rotatably installed with the corresponding support arm on the speed brake, the connecting plate 6 at the end of the second fork joint 3 is fixed on the speed brake cabin by a bolt passing through the through hole, and the support rod 1 can support the aircraft speed brake. When the inclination angle of the support needs to be adjusted, the support rod 1 is screwed in the forward direction or in the reverse direction, so that the first and second fork joints 2 and 3 can be simultaneously increased or decreased in distance from the end of the support rod 1, thereby increasing or decreasing the support length of the support rod 1, so as to adjust the inclination angle of the support.

[0027] Specifically, the second connecting end 18 is provided with a second rotating groove 17 at one end away from the second cylindrical head 19, and one end of the support arm 7 is rotatably installed in the second rotating groove 17. The end of the support arm 7 is provided with a pin hole 16 penetrating through in the thickness direction and the upper and lower side walls of the second rotating groove 17, and a connecting pin 4 is inserted into the pin hole 16, and the support arm 7 is rotatable in the second rotating groove 17 through the connecting pin 4.

[0028] After the end of the support arm 7 is inserted into the second rotating groove 17, the two pin holes 16 on the second rotating groove 17 are aligned with the pin hole 16 on the support arm 7, one end of the connecting pin 4 penetrates through the three pin holes 16 from top to bottom, and the support arm 7 is rotatably installed in the second rotating groove 17.

[0029] Specifically, the first fork joint 2 includes a first cylindrical head 13 and a first connecting end 14 connected at the end, and the first cylindrical head 13 is used for threaded connection with the internally threaded hole provided at the end of the support rod 1. The first connecting end 14 is provided with a first rotating groove 15 at one end away from the first cylindrical head 13, and the upper and lower side walls of the first rotating groove 15 are provided with pin holes 16 penetrating through, and a connecting pin 4 is inserted between the two pin holes 16.

[0030] When the first fork joint 2 is used, the corresponding support arm on the speed reduction plate is inserted into the first rotating groove 15, and the support arm is also provided with a pin hole 16, and when the pin hole 16 on the support arm is aligned with the pin hole 16 on the first rotating groove 15, one end of the connecting pin 4 penetrates through the three pin holes 16 to rotatably install the first rotating groove 15 and the support arm.

[0031] Specifically, the connecting pin 4 includes a cylindrical pin 10, one end of the cylindrical pin 10 is connected with a pull ring 5, the other end is provided with an adapter groove, a stop piece 11 is rotatably installed in the adapter groove through a rotating shaft 12, the two ends of the rotating shaft 12 are rotatably installed with the two side walls in the adapter groove, the rotating shaft 12 penetrates through the middle part of the stop piece 11 and is fixedly connected with the stop piece 11, and one end of the stop piece 11 extends to the outside of the adapter groove when the stop piece 11 is coaxial with the cylindrical pin 10. When the connecting pin 4 is inserted into the pin hole 16 for installation, the stop piece 11 is coaxial with the cylindrical pin 10, and thus it presents a cylindrical shape, which is convenient to directly penetrate through the pin hole 16. After penetrating through the pin hole 16, the stop piece 11 is rotated, and the stop piece 11 is horizontally arranged at the bottom of the cylindrical pin 10 and is perpendicular to the cylindrical pin 10, which can limit the bottom of the lowermost pin hole 16. The upper part of the connecting pin 4 is limited by the pull ring 5, so that the connecting pin 4 is not easy to fall during use.

[0032] Specifically, the support rod 1 is provided with a force adding hole 9 penetrating through the middle part, and the outer wall of the support rod 1 is also provided with anti-skid lines 8. The anti-skid lines 8 are used to increase the friction force when the support rod 1 is twisted. If it is difficult to twist the support rod 1, a force applying rod can be inserted into the force adding hole 9 to improve the efficiency and convenience of twisting.

[0033] When supporting the aircraft's speed brakes, this support device is temporarily installed on the aircraft for support. The specific installation method is as follows:

[0034] The first connecting end 14 of the first fork-type connector 2 is rotatably installed with the corresponding support arm on the speed reducer via the first rotating groove 15. The connecting plate 6 of the second fork-type connector 3 is fixed to the speed reducer compartment with bolts passing through the through holes. The support rod 1 can then support the aircraft speed reducer. When it is necessary to adjust the tilt angle of the support, the support rod 1 is turned clockwise or counterclockwise, so that the distance between the first fork-type connector 2 and the second fork-type connector 3 and the end of the support rod 1 increases or decreases simultaneously, thereby increasing or decreasing the support length of the support rod 1, and thus adjusting the tilt angle of the support. After use, the connecting plate 6 and the first connecting end 14 are removed from the speed reducer compartment and the speed reducer respectively, so that the entire device can be disassembled.

[0035] Since the internal threaded holes at both ends of the support rod 1 have opposite thread directions and their depths are both greater than the lengths of the first cylindrical head 13 and the second cylindrical head 19, they can fully enter and exit the internal threaded holes. Furthermore, by turning the support rod 1, the first cylindrical head 13 and the second cylindrical head 19 can simultaneously enter into the internal threaded holes or move outward from the internal threaded holes.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An aircraft speed brake support device, characterized in that, Includes a support rod (1), with a first fork-type connector (2) and a second fork-type connector (3) threaded to both ends of the support rod (1), and the thread direction of the first fork-type connector (2) and the second fork-type connector (3) is opposite to that of the end of the support rod (1). A connecting plate (6) is also rotatably installed at the end of the second fork-type connector (3).

2. The aircraft speed brake support device according to claim 1, characterized in that, The connecting plate (6) has multiple through holes on one side, and a support arm (7) is also connected to one side wall of the connecting plate (6).

3. The aircraft speed brake support device according to claim 2, characterized in that, The second fork-type connector (3) includes a second cylindrical head (19) and a second connecting end (18) connected at the ends. The second cylindrical head (19) is used for threaded connection with the internal threaded hole opened at the end of the support rod (1).

4. The aircraft speed brake support device according to claim 3, characterized in that, The second connecting end (18) is provided with a second rotating groove (17) at the end away from the second cylindrical head (19), and one end of the support arm (7) is rotatably installed inside the second rotating groove (17).

5. The aircraft speed brake support device according to claim 4, characterized in that, The end of the support arm (7) is provided with a pin hole (16) along the thickness direction and the upper and lower side walls of the second rotating groove (17). A connecting pin (4) is inserted into the pin hole (16), and the support arm (7) rotates inside the second rotating groove (17) through the connecting pin (4).

6. The aircraft speed brake support device according to claim 5, characterized in that, The first fork-type connector (2) includes a first cylindrical head (13) and a first connecting end (14) connected at their ends. The first cylindrical head (13) is used to thread into the internal threaded hole at the end of the support rod (1).

7. The aircraft speed brake support device according to claim 6, characterized in that, The first connecting end (14) is provided with a first rotating groove (15) at the end away from the first cylindrical head (13). The upper and lower side walls of the first rotating groove (15) are provided with pin holes (16), and a connecting pin (4) is inserted between the two pin holes (16).

8. The aircraft speed brake support device according to claim 7, characterized in that, The connecting pin (4) includes a cylindrical pin (10). One end of the cylindrical pin (10) is connected to a pull ring (5), and the other end is provided with a transition groove. A stop plate (11) is rotatably installed inside the transition groove via a rotating shaft (12). The two ends of the rotating shaft (12) are rotatably installed with the inner side walls of the transition groove, respectively. The rotating shaft (12) passes through the middle of the stop plate (11) and is fixedly connected to the stop plate (11). When the stop plate (11) is coaxial with the cylindrical pin (10), one end of the stop plate (11) extends to the outside of the transition groove.

9. The aircraft speed brake support device according to claim 7, characterized in that, The strut (1) has a through hole (9) in the middle, and the outer wall of the strut (1) is also provided with anti-slip texture (8).

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