Floor supporting piece protection device and airplane

Abstract

The utility model relates to the technical field of aircraft manufacturing, in particular to a floor supporting piece protection device and an aircraft. According to the floor supporting piece protection device and the airplane, the protection cavity defined by the first protection part and the second protection part can contain the supporting body, so that the edge of the supporting body is located in the protection cavity and can prevent collision from the side edge, the purpose of supporting the supporting body is achieved, the supporting face is arranged at the bottom of the force unloading inclined supporting frame, and therefore the supporting body can be protected. The supporting face is used for supporting the reinforcing plate, and when the supporting body is subjected to downward pressure, the supporting body can transmit the borne force to the supporting face through the reinforcing plate. The floor supporting piece protection device can reduce the probability that the floor supporting piece is collided to a certain degree, then the damage rate of the floor supporting piece is reduced, and the manufacturing cost of an airplane is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft manufacturing, in particular to a floor support member protection device and an aircraft. Background Art

[0002] In order to reduce the production cost of new regional aircraft, the existing technology optimizes the material and shape of the aircraft cabin floor support frame. Due to the need to reduce weight, the floor support is optimized to plastic material, but the material strength of the plastic floor support itself is low and the support plane of the support is suspended on the aircraft. Before the cabin floor is officially installed, the wooden PTP protection plate or other tooling will collide with the floor support, causing the floor support to break and become scrapped. However, the large number of scrapped and replaced floor supports has increased the manufacturing cost of new regional aircraft.

[0003] However, the existing measures for protecting floor support members are mainly based on flexible materials and cannot provide support for the suspended part of the support member. They can only protect the paint layer on the surface of the support member from being damaged, but cannot prevent the support member from being broken by collision.

[0004] Therefore, there is an urgent need for a floor support member protection device to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a floor support member protection device.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A floor support member protection device is provided, which is used to protect a floor support member arranged on an aircraft cross beam, and comprises a first protection portion and a second protection portion, wherein the first protection portion and the second protection portion are enclosed to form a protection chamber, and the protection chamber is used to accommodate the floor support member;

[0008] The top surface of the first protection part and the top surface of the second protection part are both higher than the top surface of the floor support member, the first protection part includes a first protection body and a force unloading diagonal brace, the first protection body is a U-shaped structure, the opening of the first protection body faces the second protection part, a clamping groove is arranged on the top of the first protection body, the top surface of the first protection body is parallel to and higher than the top surface of the force unloading diagonal brace, the force unloading diagonal brace is arranged on the first inner side wall of the first protection body facing the second protection part, and the force unloading diagonal brace is arranged obliquely relative to the first protection body, and a supporting surface is arranged at the bottom of the force unloading diagonal brace;

[0009] The second protection part comprises a second protection body, and the second protection body is provided with two spaced connection arms on the side wall facing the first protection body, and the side walls of the two connection arms facing away from each other are provided with a snap-fitting protrusion, and the snap-fitting protrusion is embedded in the snap-fitting groove.

[0010] As a preferred technical solution of the above-mentioned floor support member protection device, a first limiting member is provided at the end of the first protecting body toward the second protecting body, and a second limiting member is provided at the end of the second protecting body. The first limiting member cooperates with the second limiting member to limit the second protecting body.

[0011] As a preferred technical solution of the above-mentioned floor support member protection device, a limiting groove is formed between the second protection body, the connecting arm and the snap-on protrusion, the limiting groove is the second limiting member, and a limiting block is formed at the end of the first protection body, the limiting block is inserted in the limiting groove, and the limiting block is the first limiting member.

[0012] As a preferred technical solution of the above-mentioned floor support member protection device, a support belt for supporting the floor support member is provided at the bottom of the second protection body, and the width of the support belt tends to gradually decrease along the direction from the second protection body to the first protection body.

[0013] As a preferred technical solution of the above-mentioned floor support member protection device, a first adsorption member is arranged in the clamping groove, and a second adsorption member is arranged in the clamping protrusion, and the first adsorption member and the second adsorption member can be attracted to each other.

[0014] As a preferred technical solution of the above-mentioned floor support member protection device, the bottom or wall of the snap-in groove is provided with a first accommodating groove capable of accommodating the first adsorption member, and the snap-in protrusion is provided with a second accommodating groove, and the first accommodating groove and the second accommodating groove are arranged opposite to each other.

[0015] As a preferred technical solution of the above-mentioned floor support member protection device, the force unloading diagonal brace has an avoidance groove, and the avoidance groove extends along the height direction of the force unloading diagonal brace.

[0016] As a preferred technical solution of the above-mentioned floor support member protection device, the bottom of the force-releasing diagonal support frame is bent to form a support plate, and the support surface is the top surface of the support plate.

[0017] As a preferred technical solution of the above-mentioned floor support member protection device, a reinforcement plate extends from the top of the force unloading diagonal support frame toward the second protection body, and the reinforcement plate is in contact with the second inner wall opposite to the first protection body, and the first inner wall and the second inner wall are arranged at an angle.

[0018] The utility model also provides an aircraft, comprising the floor support member protection device described in any one of the above solutions.

[0019] The utility model has at least the following beneficial effects:

[0020] The floor support member protection device provided by the utility model has a protection chamber surrounded by a first protection part and a second protection part that can accommodate a support body, so that the edge of the support body is located in the protection chamber to prevent collision from the side, and the top surface of the floor support member (that is, the top surface of the support body) is lower than the top surfaces of the first protection part and the second protection part, and the first protection part and the second protection part can also avoid a part of the collision from above, and the top surface of the force unloading diagonal support frame is used to support the bottom surface of the support body of the floor support member, thereby achieving the purpose of supporting the support body, and the bottom of the force unloading diagonal support frame is provided with a support surface, and the support surface is used to support the reinforcement plate. When the support body is subjected to downward pressure, the support body will transfer the force received to the support surface through the reinforcement plate. Since the force unloading diagonal support frame is inclined relative to the first protection body, the downward pressure can be decomposed into horizontal force and vertical force, thereby weakening the downward pressure and preventing the floor support member from being damaged by force. In summary, the floor support member protection device provided by the utility model can reduce the probability of the floor support member being collided to a certain extent, thereby reducing the breakage rate of the floor support member and reducing the manufacturing cost of the aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0022] Figure 1 Floor supports provided for the prior art;

[0023] Figure 2 A schematic diagram of the structure of a floor support member protection device provided by an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of the structure of the first protection part provided in an embodiment of the utility model;

[0025] Figure 4 A schematic structural diagram of a second protection portion provided in an embodiment of the utility model.

[0026] In the figure:

[0027] 1. First protection part; 11. First protection body; 111. Snap-on groove; 112. First inner side wall; 113. Second inner side wall; 114. First accommodating groove; 12. Force unloading diagonal support frame; 121. Support plate; 1211. Support surface; 122. Avoidance groove; 123. Reinforcement plate; 13. Limiting block; 2. Second protection part; 21. Second protection body; 22. Connecting arm; 23. Snap-on protrusion; 24. Limiting groove; 25. Support belt; 26. Second accommodating groove; 100. Floor support; 101. Support body; 102. Laminating plate; 103. First vertical plate; 104. Second vertical plate; 105. Strengthening plate; 200. Crossbeam. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0032] like Figure 1 As shown, the floor support 100 for aircraft in the prior art includes a support body 101, a bonding plate 102, a first vertical plate 103, a second vertical plate 104 and a reinforcing plate 105, wherein the first vertical plate 103 and the reinforcing plate 105 are arranged at the bottom of the support body 101, the side wall of the first vertical plate 103 is bonded to the cross beam 200, and the reinforcing plate 105 is respectively connected to the first vertical plate 103 and the support body 101, and the structure of the reinforcing plate 105 is similar to a triangular plate, and the two vertical side walls of the reinforcing plate 105 are respectively connected to the support body 101 and the first vertical plate 103, the support body 101 and the bonding plate 102 are arranged in parallel, and the second vertical plate 104 is located between the support body 101 and the bonding plate 102, and the two ends of the first vertical plate 103 are respectively fixedly connected to the support body 101 and the bonding plate 102.

[0033] Since the floor support 100 is made of plastic, when installing a wooden PTP protection plate or other tooling, the floor support 100 may collide with the floor support 100, causing the floor support 100 to break and become scrapped. Therefore, this embodiment provides a floor support protection device that can protect the floor support 100.

[0034] like Figure 2-4As shown, the floor support member protection device includes a first protection portion 1 and a second protection portion 2. The first protection portion 1 and the second protection portion 2 are enclosed to form a protection chamber, and the protection chamber is used to accommodate the floor support member 100 to prevent the floor support member 100 from being broken by collision. The top surface of the first protection portion 1 and the top surface of the second protection portion 2 are both higher than the top surface of the floor support member 100, so that during the installation process, the wooden PTP protection plate or other tooling will not touch the top surface of the floor support member 100, preventing the top surface of the floor support member 100 from being damaged by collision. The first protection portion 1 includes a first protection body 11 and a force unloading diagonal brace 12. The first protection body 11 is a U-shaped structure. The opening of the first protection body 11 faces the second protection portion 2. A clamping groove 111 is provided on the top of the first protection body 11. The top surface of the first protection body 11 is parallel to and higher than the top surface of the force unloading diagonal brace 12. The force unloading diagonal brace 12 is provided on the first inner side wall of the first protection body 11 facing the second protection portion 2. 112, and the force unloading diagonal brace frame 12 is tilted relative to the first protective body 11, so that the top surface of the force unloading diagonal brace frame 12 is used to support the bottom surface of the supporting body 101 of the floor support 100, thereby achieving the purpose of supporting the supporting body 101, and a supporting surface 1211 is provided at the bottom of the force unloading diagonal brace frame 12, and the supporting surface 1211 is used to support the reinforcing plate 105. When the supporting body 101 is subjected to downward pressure, the supporting body 101 will transfer the force received to the supporting surface 1211 through the reinforcing plate 105. Since the force unloading diagonal brace frame 12 is tilted relative to the first protective body 11, the downward pressure can be decomposed into horizontal force and vertical force, thereby weakening the downward pressure and preventing the floor support 100 from being damaged by the force.

[0035] The second protection part 2 includes a second protection body 21. The second protection body 21 is provided with two spaced connection arms 22 on the side wall facing the first protection body 11. The side wall opposite to the two connection arms 22 is provided with a clamping protrusion 23. The clamping protrusion 23 is embedded in the clamping groove 111. Since the clamping groove 111 is provided at the top of the first protection body 11, the clamping protrusion 23 enters the clamping groove 111 from the top of the first protection body 11 during installation, and then the first protection body 11 supports the second protection body 21 to prevent the second protection body 21 from falling.

[0036] The floor support member protection device provided by the utility model has a protection chamber surrounded by the first protection part 1 and the second protection part 2, which can accommodate the support body 101. In this way, the edge of the support body 101 is located in the protection chamber to prevent collision from the side, and the top surface of the floor support member 100 (that is, the top surface of the support body 101) is lower than the top surfaces of the first protection part 1 and the second protection part 2. The first protection part 1 and the second protection part 2 can also avoid a part of the collision from above, and the top surface of the unloading diagonal support frame 12 is used to support the support of the floor support member 100. The bottom surface of the support body 101 is supported by the force unloading diagonal support frame 12, thereby achieving the purpose of supporting the support body 101. The bottom of the force unloading diagonal support frame 12 is provided with a support surface 1211, and the support surface 1211 is used to support the reinforcing plate 105. When the support body 101 is subjected to downward pressure, the support body 101 will transfer the force received to the support surface 1211 through the reinforcing plate 105. Since the force unloading diagonal support frame 12 is inclined relative to the first protection body 11, the downward force can be decomposed into horizontal force and vertical force, thereby weakening the downward force and preventing the floor support 100 from being damaged by force. In summary, the floor support protection device provided by the utility model can reduce the probability of the floor support 100 being collided to a certain extent, thereby reducing the breakage rate of the floor support 100 and reducing the manufacturing cost of the aircraft.

[0037] In detail, after the floor support member protection device is subjected to vibration, the first protection body 11 and the second protection body 21 may be separated. For this purpose, a first limiting member is provided at the end of the first protection body 11 facing the second protection body 21, and a second limiting member is provided at the end of the second protection body 21. The first limiting member and the second limiting member cooperate to limit the second protection body 21. The second protection body 21 is limited by the first protection body 11 in the vertical direction, and the first limiting member and the second limiting member work together to achieve horizontal limitation of the second protection body 21, so as to prevent the first protection body 11 and the second protection body 21 from being separated horizontally.

[0038] Furthermore, a limiting groove 24 is formed between the second protection body 21, the connecting arm 22 and the clamping protrusion 23. The limiting groove 24 is a second limiting member. A limiting block 13 is formed at the end of the first protection body 11. The limiting block 13 is inserted into the limiting groove 24. The limiting block 13 is a first limiting member. The limiting groove 24 and the limiting block 13 cooperate with each other to prevent the second protection body 21 from being separated from the first protection body 11 in the horizontal direction, thereby improving the integrity of the first protection body 11 and the second protection body 21.

[0039] In some embodiments, in order to make the bottom surface of the support body 101 supported by the second protection part 2, a support belt 25 for supporting the floor support member 100 is provided at the bottom of the second protection body 21, and the width of the support belt 25 has a tendency to gradually decrease from the second protection body 21 to the first protection body 11, and the length of the support belt 25 is the same as the width of the support body 101 or the length of the support belt 25 is less than the width of the support body 101. The width of the support belt 25 has a tendency to gradually decrease, which can serve as a guide when the support belt 25 is inserted between the support body 101 and the crossbeam 200. It can be understood that the side wall of the support belt 25 facing the support body 101 is an arc-shaped side wall or an inclined side wall.

[0040] The inventors found that after being subjected to strong vibration, the first protection body 11 and the second protection body 21 will still separate. Therefore, in some embodiments, Figure 2 and Figure 3 As shown, a first adsorbent is provided in the snap-fit ​​groove 111, and a second adsorbent is provided in the snap-fit ​​protrusion 23, and the first adsorbent and the second adsorbent can be attracted to each other. For example, the first adsorbent and the second adsorbent are both magnets, and the first adsorbent and the second adsorbent are attracted to each other. When the first protection body 11 and the second protection body 21 are subjected to strong vibration, the first adsorbent and the second adsorbent need to overcome the attraction of the magnet to separate, which can further prevent the first protection body 11 and the second protection body 21 from separating, thereby protecting the floor support 100.

[0041] Specifically, the bottom or wall of the snap-fit ​​groove 111 is provided with a first receiving groove 114 capable of accommodating the first adsorbent, and the snap-fit ​​protrusion 23 is provided with a second receiving groove 26, and the first receiving groove 114 is arranged opposite to the second receiving groove 26. The first adsorbent and the second adsorbent are arranged in the first receiving groove 114 and the second receiving groove 26 respectively, so that the first adsorbent and the second adsorbent can be hidden, and the first adsorbent and the second adsorbent are prevented from interfering with the installation of the snap-fit ​​groove 111 and the snap-fit ​​protrusion 23.

[0042] Since the floor support 100 has a reinforcing plate 105 , the reinforcing plate 105 will interfere with the fit between the force unloading diagonal brace 12 and the first vertical plate 103 . Therefore, the force unloading diagonal brace 12 has an avoidance groove 122 , which extends along the height direction of the force unloading diagonal brace 12 and penetrates the support plate 121 .

[0043] Furthermore, the bottom of the force unloading brace 12 is bent to form a support plate 121, and the support surface 1211 is the top surface of the support plate 121. The support plate 121 can support the first vertical plate 103 to share the downward force on the floor support member 100, and the avoidance groove 122 extends along the height direction of the force unloading brace 12 and penetrates the support plate 121.

[0044] In some embodiments, a reinforcing plate 123 is extended from the top of the force unloading diagonal brace 12 toward the second protective body 21, and the reinforcing plate 123 is in contact with the second inner wall side of the first protective body 11, and the first inner wall 112 and the second inner wall 113 are arranged at an angle. The arrangement of the reinforcing plate 123 can increase the connection area between the force unloading diagonal brace 12 and the first protective body 11, thereby increasing the connection strength between the two, and preventing the force unloading diagonal brace 12 from being separated from the first protective body 11 due to a large downward pressure. The force unloading diagonal brace 12 can be welded or bonded to the first protective body 11 as a whole.

[0045] Exemplarily, the angle between the load-releasing diagonal brace 12 and the first protective body 11 is 5°, 10°, 15°, 20°, 25°, 30°, 35° or 40°, which is not specifically limited here.

[0046] The utility model also provides an aircraft, comprising the floor support member protection device provided by this embodiment.

[0047] Since the above-mentioned floor support member protection device is included, the aircraft of the embodiment of the utility model has all the advantages and beneficial effects of the above-mentioned embodiments, which will not be described in detail here.

[0048] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A floor support member protection device for protecting a floor support member (100) arranged on an aircraft cross beam (200), characterized in that: It comprises a first protecting portion (1) and a second protecting portion (2), wherein the first protecting portion (1) and the second protecting portion (2) enclose a protecting chamber, and the protecting chamber is used to accommodate the floor supporting member (100); The top surface of the first protection part (1) and the top surface of the second protection part (2) are both higher than the top surface of the floor support (100); the first protection part (1) comprises a first protection body (11) and a force unloading diagonal support frame (12); the first protection body (11) is a U-shaped structure; the opening of the first protection body (11) faces the second protection part (2); a clamping groove (111) is provided at the top of the first protection body (11); the top surface of the first protection body (11) is parallel to and higher than the top surface of the force unloading diagonal support frame (12); the force unloading diagonal support frame (12) is provided on a first inner side wall (112) of the first protection body (11) facing the second protection part (2); the force unloading diagonal support frame (12) is inclined relative to the first protection body (11); and a supporting surface (1211) is provided at the bottom of the force unloading diagonal support frame (12); The second protection part (2) comprises a second protection body (21), the second protection body (21) being provided with two spaced-apart connecting arms (22) on the side wall facing the first protection body (11), the two connecting arms (22) being provided with a snap-fitting protrusion (23) on the side walls facing away from each other, the snap-fitting protrusion (23) being embedded in the snap-fitting groove (111).

2. The floor support protection device according to claim 1, characterized in that: A first limiting member is provided at the end of the first protection body (11) facing the second protection body (21), and a second limiting member is provided at the end of the second protection body (21), and the first limiting member cooperates with the second limiting member to limit the second protection body (21).

3. The floor support protection device according to claim 2, characterized in that: A limiting groove (24) is formed between the second protection body (21), the connecting arm (22) and the clamping protrusion (23); the limiting groove (24) is a second limiting member; a limiting block (13) is formed at the end of the first protection body (11); the limiting block (13) is inserted into the limiting groove (24); and the limiting block (13) is a first limiting member.

4. The floor support member protection device according to claim 1, characterized in that: A support belt (25) for supporting the floor support member (100) is arranged at the bottom of the second protection body (21), and the width of the support belt (25) tends to gradually decrease along the direction from the second protection body (21) to the first protection body (11).

5. The floor support protection device according to claim 1, characterized in that: A first adsorption component is arranged in the clamping groove (111), and a second adsorption component is arranged on the clamping protrusion (23), and the first adsorption component and the second adsorption component can be attracted to each other.

6. The floor support protection device according to claim 5, characterized in that: The bottom or wall of the snap-fit ​​groove (111) is provided with a first accommodating groove (114) capable of accommodating the first adsorption component, and the snap-fit ​​protrusion (23) is provided with a second accommodating groove (26), and the first accommodating groove (114) and the second accommodating groove (26) are arranged opposite to each other.

7. The floor support protection device according to claim 1, characterized in that: The force unloading diagonal brace frame (12) has an avoidance groove (122), and the avoidance groove (122) extends along the height direction of the force unloading diagonal brace frame (12).

8. The floor support protection device according to claim 1, characterized in that: The bottom of the force-releasing diagonal support frame (12) is bent to form a support plate (121), and the support surface (1211) is the top surface of the support plate (121).

9. The floor support protection device according to claim 1, characterized in that: A reinforcing plate (123) is extended from the top of the force-releasing diagonal support frame (12) toward the second protective body (21), and the reinforcing plate (123) is in contact with a second inner side wall (113) arranged opposite to the first protective body (11), and the first inner side wall (112) and the second inner side wall (113) are arranged at an angle.

10. An aircraft, characterized in that: The invention comprises a floor support member protection device as claimed in any one of claims 1 to 9.

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