Positioning tool for assisting in mounting lining plate on top of inner wall of fuselage

Abstract

The utility model discloses a positioning tool for assisting in mounting a lining plate on the top of the inner wall of a fuselage, which comprises a bottom plate supported on the inner bottom surface of the fuselage, a support rod is arranged on the bottom plate, and a support plate for supporting the lining plate is arranged at the top end of the support rod. The supporting plate comprises a connecting part used for being connected with the supporting rod and a supporting part used for supporting the lining plate. The supporting rod is in an I-shaped steel shape, at least two rows of first through holes with different heights are formed in the flange of the supporting rod, at least two first through holes are symmetrically formed in each row with the web of the supporting rod as the boundary, and second through holes corresponding to the first through holes are formed in the connecting part. The positioning device can quickly position the lining plate at the top of the inner wall of the machine body, so that the working efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of aircraft maintenance technology, specifically to a positioning tool for assisting in the installation of a liner plate on the top of the inner wall of the fuselage. Background Technology

[0002] During the conversion of passenger aircraft into freighters, lining panels need to be installed on the top of the fuselage (i.e., the main cargo hold), and these panels are secured by lining panel brackets. On a passenger-to-freighter conversion, the top lining panel brackets need to be positioned on dozens of bulkheads. Positioning each lining panel bracket on each bulkhead individually would be an extremely tedious and time-consuming task. Therefore, a tool is needed to quickly position these lining panel brackets to improve work efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a positioning fixture for installing a liner plate on the top of the inner wall of a machine body, which can quickly position the liner plate on the top of the inner wall of the machine body, thereby effectively improving work efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0005] A positioning fixture for assisting in the installation of a liner on the top of the inner wall of an aircraft fuselage includes a base plate supported on the bottom surface inside the fuselage, a support rod on the base plate, and a support plate at the top of the support rod for supporting the liner. Its function is that, based on the structural characteristics of the aircraft fuselage, except for the nose and tail, the cross-section of the fuselage is of the same size, and the floor is installed horizontally inside the fuselage, meaning the top height of each bulkhead is consistent with the floor reference. Through the support rod and support plate, the liner can be supported at any top along the length of the aircraft fuselage, thereby assisting in the installation of the liner on the top of the inner wall of the fuselage.

[0006] Furthermore, the support plate includes a connecting portion for connecting with the support rod and a support portion for supporting the liner.

[0007] Furthermore, the support rod is H-beam shaped, and its flanges are provided with at least two rows of first through holes at different heights. Each row of first through holes has at least two holes symmetrically arranged around the web of the support rod. The connecting part is provided with second through holes corresponding to the first through holes. The function of these first and second through holes is to facilitate the connection between the support rod and the connecting part by using bolts passing through them. The design of multiple rows of first through holes allows for adjustment of the installation height of the connecting part on the support rod according to different fuselage heights, enabling the support plate to be used on fuselages of varying heights.

[0008] Furthermore, the support rod has first through holes on both the front and rear flanges of its web. This design, with first through holes on all flanges of the support rod, allows the connecting parts to be installed on both the front and rear sides of the support rod, facilitating use.

[0009] Furthermore, the connecting part is in the shape of an I-beam, and the second through hole is provided on the flange of the support part.

[0010] Furthermore, the support portion includes a parallel section arranged parallel to the base plate and a vertical section arranged perpendicular to the base plate. The parallel section is located at the top of the vertical section, and the vertical section is connected to the connecting portion.

[0011] Furthermore, the flange of the connecting part is provided with at least two rows of third through holes, and each row of third through holes has at least two symmetrically arranged with the web of the connecting part as the boundary. The vertical section is provided with a fourth through hole corresponding to the third through holes. The height difference between any two rows of adjacent third through holes is less than the height difference between any two rows of first through holes. Its function is to facilitate the connection between the connecting part and the vertical section by using bolts passing through the first and second through holes, and to allow for fine-tuning of the installation height of the connecting part on the support rod according to different fuselage heights, enabling the support plate to be applied to fuselages of different heights.

[0012] Furthermore, the connecting portion has a third through hole on both the front and rear flanges of its web. This design, with third through holes on all flanges of the connecting portion, allows the vertical section to be installed on both the front and rear sides of the connecting portion, facilitating its use.

[0013] Furthermore, an auxiliary plate is provided on the side wall of the base plate, perpendicular to both the base plate and the support rod. Its function is to enhance the base plate's support capacity for the support rod, preventing the support rod from tilting forward.

[0014] Furthermore, both the base plate and the auxiliary plate are provided with diagonal braces for connecting to the support rod. The function of these diagonal braces is to enhance the support capacity of the base plate and the auxiliary plate for the support rod.

[0015] Furthermore, each of the front and rear ends of the base plate is provided with a connecting plate, which is perpendicular to both the base plate and the support rod. The base plate is located in the middle of the connecting plate. The connecting plate has at least two connecting holes along its extension direction for connecting the connecting plate to the rail on the bottom surface of the machine body. A reinforcing crossbar connects the two connecting plates, and a reinforcing diagonal brace connects the reinforcing crossbar to the support rod. Its function is to fix the entire positioning fixture to the rail on the bottom surface of the machine body through the connecting plates and connecting holes, ensuring good stability; and to enhance the overall structural strength of the positioning fixture through the reinforcing crossbar and reinforcing diagonal brace.

[0016] The beneficial effects of this utility model are:

[0017] 1. Based on the structural characteristics of the aircraft fuselage, apart from the nose and tail, the cross-section of the fuselage is the same size. The floor is installed horizontally inside the fuselage, meaning that the height of the top of each frame is consistent with the floor reference. Through the setting of support rods and support plates, the liner can be supported at any top along the length of the aircraft fuselage, thereby assisting in the installation of the liner on the top of the inner wall of the fuselage. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of Example 1 with the front facing forward;

[0019] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure with the back side facing forward, as shown in Example 1.

[0021] Figure 4 for Figure 3 Enlarged structural diagram at point B;

[0022] Figure 5 This is a three-dimensional structural schematic diagram of Example 2;

[0023] Figure 6 for Figure 5 A magnified structural diagram at point C.

[0024] Reference numerals: 1. Base plate; 2. Support rod; 3. Support plate; 4. Connecting part; 5. Support part; 6. First through hole; 7. Second through hole; 8. Parallel section; 9. Vertical section; 10. Third through hole; 11. Fourth through hole; 12. Auxiliary plate; 13. Diagonal brace; 14. Connecting plate; 15. Connecting hole; 16. Reinforcing crossbar; 17. Reinforcing diagonal brace. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0026] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1

[0029] A positioning fixture for installing a liner plate on the top of the inner wall of an auxiliary fuselage, such as Figure 1 As shown, the system includes a base plate 1 for support on the bottom surface inside the fuselage, a support rod 2 on the base plate 1, and a support plate 3 at the top of the support rod 2 for supporting the liner. Its function is that, according to the structural characteristics of the aircraft fuselage, except for the nose and tail, the cross-section of the fuselage is the same size, and the floor is installed horizontally inside the fuselage, meaning the height of the top of each frame is consistent with the floor reference. Through the support rod 2 and the support plate 3, the liner can be supported at any top along the length of the aircraft fuselage, thereby assisting in the installation of the liner on the top of the inner wall of the fuselage.

[0030] Specifically, such as Figure 2 As shown, the support plate 3 includes a connecting part 4 for connecting with the support rod 2 and a support part 5 for supporting the liner plate.

[0031] Specifically, such as Figure 2As shown, the support rod 2 is in the shape of an I-beam. At least two rows of first through holes 6 at different heights are provided on the flange of the support rod 2. Each row of first through holes 6 has at least two holes symmetrically arranged around the web of the support rod 2. The connecting part 4 has second through holes 7 corresponding to the first through holes 6. The function of these holes is to facilitate the connection between the support rod 2 and the connecting part 4 by using bolts passing through the first and second through holes 6 and 7. The design of multiple rows of first through holes 6 allows for adjustment of the installation height of the connecting part 4 on the support rod 2 according to different fuselage heights, enabling the support plate 3 to be applied to fuselages of different heights.

[0032] Specifically, such as Figure 2 As shown, the support rod 2 has first through holes 6 on both the front and rear flanges of its web. The purpose of this design is to allow the connecting part 4 to be installed on both the front and rear sides of the support rod 2, facilitating its use.

[0033] Specifically, such as Figure 2 As shown, the connecting part 4 is in the shape of an I-beam, and the second through hole 7 is provided on the flange of the supporting part 5.

[0034] Specifically, such as Figure 4 As shown, the support part 5 includes a parallel section 8 that is parallel to the base plate 1 and a vertical section 9 that is perpendicular to the base plate 1. The parallel section 8 is located at the top of the vertical section 9, and the vertical section 9 is connected to the connecting part 4.

[0035] Specifically, such as Figure 4 As shown, the flange of the connecting part 4 is provided with at least two rows of third through holes 10. Each row of third through holes 10 is symmetrically provided with at least two holes 10 along the web of the connecting part 4. The vertical section 9 is provided with fourth through holes 11 corresponding to the third through holes 10. The height difference between any two rows of adjacent third through holes 10 is less than the height difference between any two rows of first through holes 6. Its function is to facilitate the connection between the connecting part 4 and the vertical section 9 by using bolts through the first through holes 6 and the second through holes 7 through the arrangement of the third through holes 10 and the fourth through holes 11; through the design of multiple rows of third through holes 10, the installation height of the connecting part 4 on the support rod 2 can be finely adjusted according to different fuselage heights, so that the support plate 3 can be applied to fuselages of different heights.

[0036] Specifically, such as Figure 4 As shown, the connecting part 4 has a third through hole 10 on both the front and rear flanges of the web plate. Its function is to allow the vertical section 9 to be installed on both the front and rear sides of the connecting part 4 by providing third through holes 10 on all flanges of the connecting part 4, thus facilitating its use.

[0037] Specifically, such as Figure 3As shown, an auxiliary plate 12 is provided on the side wall of the base plate 1, which is perpendicular to both the base plate 1 and the support rod 2. Its function is to enhance the support capacity of the base plate 1 for the support rod 2 and prevent the support rod 2 from tilting forward.

[0038] Specifically, such as Figure 3 As shown, both the base plate 1 and the auxiliary plate 12 are provided with diagonal braces 13 for connecting to the support rod 2. Their function is to enhance the support capacity of the base plate 1 and the auxiliary plate 12 for the support rod 2 through the diagonal braces 13.

[0039] The working principle of this embodiment is explained as follows: First, place the base plate 1 on the inner floor of the machine body, so that the support rod 2 is located in the middle of the width direction of the machine body. Then, place the liner on the support plate 3 to complete the support and positioning of the liner. After the liner on the top of the inner wall of the machine body is installed, move the base plate 1 along the length direction of the machine body to position the next liner. It is convenient to use.

[0040] Example 2

[0041] like Figure 5 As shown, a connecting plate 14 is provided at each of the front and rear ends of the base plate 1. The connecting plate 14 is perpendicular to both the base plate 1 and the support rod 2. The base plate 1 is located in the middle of the connecting plate 14. Figure 6 As shown, each connecting plate 14 has at least two connecting holes 15 along its extending direction for connecting the connecting plate 14 to the rail on the bottom surface of the machine body. A reinforcing crossbar 16 connects the two connecting plates 14, and a reinforcing diagonal bar 17 connects the reinforcing crossbar 16 to the support rod 2. The function of these features is to fix the entire positioning fixture to the rail on the bottom surface of the machine body, ensuring good stability; and to enhance the overall structural strength of the positioning fixture through the reinforcing crossbar 16 and the reinforcing diagonal bar 17.

[0042] The working principle of this embodiment is explained as follows: First, place the base plate 1 on the inner floor of the machine body and align the connecting hole 15 with the rail on the inner floor of the machine body. Then, use pins or bolts and nuts to fix the connecting plate 14 to the rail, so that the support rod 2 is fixed in the middle of the width direction of the machine body. Then, place the liner on the support plate 3 to complete the support and positioning of the liner. After the liner on the top of the inner wall of the machine body is installed, move the base plate 1 along the length direction of the machine body to position the next liner. It is convenient to use.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments based on the technical essence of the present utility model and within the spirit and principles of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A positioning fixture for installing a liner plate on the top of the inner wall of an auxiliary fuselage, characterized in that: It includes a base plate (1) for supporting the bottom surface inside the fuselage, a support rod (2) on the base plate (1), and a support plate (3) for supporting the liner at the top of the support rod (2).

2. The positioning fixture for installing a liner plate on the top of the inner wall of an auxiliary fuselage according to claim 1, characterized in that: The support plate (3) includes a connecting part (4) for connecting with the support rod (2) and a support part (5) for supporting the liner.

3. A positioning fixture for installing a liner plate on the top of the inner wall of an auxiliary fuselage according to claim 2, characterized in that: The support rod (2) is in the shape of an I-beam. The flange of the support rod (2) is provided with at least two rows of first through holes (6). Each row of first through holes (6) is symmetrically provided with at least two holes with the web of the support rod (2) as the boundary. The connecting part (4) is provided with a second through hole (7) corresponding to the first through hole (6).

4. A positioning fixture for installing a liner plate on the top of the inner wall of an auxiliary fuselage according to claim 3, characterized in that: The support rod (2) has a first through hole (6) on the flanges on both the front and rear sides of the web plate.

5. A positioning fixture for installing a liner plate on the top of the inner wall of an auxiliary fuselage according to claim 3, characterized in that: The connecting part (4) is in the shape of an I-beam, and the second through hole (7) is provided on the flange of the supporting part (5).

6. A positioning fixture for installing a liner plate on the top of the inner wall of an auxiliary fuselage according to claim 5, characterized in that: The support part (5) includes a parallel section (8) arranged parallel to the base plate (1) and a vertical section (9) arranged perpendicular to the base plate (1). The parallel section (8) is located at the top of the vertical section (9), and the vertical section (9) is connected to the connecting part (4).

7. A positioning fixture for installing a liner plate on the top of the inner wall of an auxiliary fuselage according to claim 6, characterized in that: The flange of the connecting part (4) is provided with at least two rows of third through holes (10). Each row of third through holes (10) is symmetrically provided with at least two holes with the web of the connecting part (4) as the boundary. The vertical section (9) is provided with a fourth through hole (11) corresponding to the third through hole (10). The height difference between two rows of adjacent third through holes (10) is less than the height difference between two rows of first through holes (6).

8. A positioning fixture for installing a liner plate on the top of the inner wall of an auxiliary fuselage according to claim 5, characterized in that: The connecting part (4) has a third through hole (10) on the front and rear flanges of the web plate.

9. A positioning fixture for installing a liner plate on the top of the inner wall of an auxiliary fuselage according to claim 1, characterized in that: The base plate (1) has an auxiliary plate (12) on its side wall that is perpendicular to both the base plate (1) and the support rod (2). The auxiliary plate (12) is located in the middle of the base plate (1). Both the base plate (1) and the auxiliary plate (12) are provided with diagonal bracing rods (13) for connecting to the support rod (2).

10. A positioning fixture for installing a liner plate on the top of the inner wall of an auxiliary fuselage according to claim 1, characterized in that: The base plate (1) has a connecting plate (14) at each of its front and rear ends. The connecting plate (14) is perpendicular to the base plate (1) and the support rod (2). The base plate (1) is located in the middle of the connecting plate (14). The connecting plate (14) has at least two connecting holes (15) along its extension direction for connecting the connecting plate (14) to the rail on the bottom surface inside the machine body. A reinforcing crossbar (16) is connected between the two connecting plates (14). A reinforcing diagonal bar (17) is connected between the reinforcing crossbar (16) and the support rod (2).

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