Equipment fixing assembly on aircraft bulkhead

Abstract

The invention relates to the technical field of equipment mounting and fixing, in particular to an equipment fixing assembly on an aircraft bulkhead, which comprises a first clamping group, a second clamping group and a fixing assembly, the second clamping group is provided with a third clamping piece and a fourth clamping piece; the mounting plate is connected between the second clamping piece and the third clamping piece and is used for mounting and fixing equipment; wherein the first clamping piece and the second clamping piece are connected through a first screw so as to be fixedly clamped on the first bulkhead, and the third clamping piece and the fourth clamping piece are connected through a second screw so as to be fixedly clamped on the second bulkhead. The mounting plate of the added equipment is connected through the second clamping piece and the third clamping piece which are respectively clamped with the first bulkhead and the second bulkhead, so that the fixed work of the added equipment is completed on the mounting plate on the premise that the bulkhead is not damaged under the condition that the original machine body bulkhead structure is not damaged; the refit period is greatly shortened, the refit cost is greatly reduced, and meanwhile lease cancellation after the aircraft lease expires is not affected.

Description

Technical Field

[0001] The invention relates to the technical field of equipment installation and fixing, and in particular to an equipment fixing component on an aircraft bulkhead. Background Art

[0002] At present, in order to meet different needs, it is necessary to modify the passenger aircraft that have been put into use to install various equipment. The commonly used installation solution is to install the bracket joint by drilling holes and riveting on the bulkhead structure of the fuselage, and then fix the equipment. However, this modification method will face the following problems:

[0003] 1. The bulkhead structure is a key fatigue reference structure. After opening holes and other work, it is necessary to complete damage tolerance assessment and analysis and subsequent regular and continuous non-destructive testing. The engineering analysis is difficult, the modification cycle is long, and the derived costs such as man-hours are high;

[0004] 2. Airlines now usually operate by leasing aircraft. This type of modification will damage the original structure of the aircraft and cannot be restored. When the aircraft lease expires and is returned, a series of compensation, additional repairs, and even refusal to accept the aircraft will occur. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides an equipment fixing assembly on an aircraft bulkhead, which can complete the fixing work of the installed equipment without destroying the original aircraft bulkhead structure, that is, on the premise that the bulkhead is intact.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An equipment fixing assembly on an aircraft bulkhead, comprising:

[0008] The first card group includes a first card component and a second card component;

[0009] The second card set includes a third card component and a fourth card component; and

[0010] A mounting plate, connected between the second clamp and the third clamp, used for mounting and fixing the device;

[0011] The first clamping member and the second clamping member are connected by a first screw to be fixedly engaged on the first bulkhead, and the third clamping member and the fourth clamping member are connected by a second screw to be fixedly engaged on the second bulkhead.

[0012] In one embodiment disclosed in the present application, the first clamping member is in an L-shaped structure, which includes an integrally formed first thick-walled support block and a first plate body, and a pair of first through holes are formed on the first plate body;

[0013] The second clamping member is in a Z-shaped structure, comprising a second thick-walled support block, a second plate body and a first thin-walled support block which are integrally formed and sequentially arranged, and a pair of first threaded holes are formed on the second thick-walled support block;

[0014] When the first screw passes through the first through hole and is screwed into the first threaded hole, the first clamping member fits the contour of one side of the first bulkhead, and the second clamping member fits the contour of the other side of the first bulkhead to clamp the first bulkhead between the first thick-walled support block, the first plate body, the second thick-walled support block and the second plate body.

[0015] In one embodiment disclosed in the present application, the third clamping member is in a T-shaped structure, which includes an integrally formed second thin-walled support block, a third thick-walled support block and a third plate body, the second thin-walled support block and the third thick-walled support block are connected back to back to the same end of the third plate body, and a pair of second through holes are opened on the third plate body;

[0016] The fourth clamping member is in an L-shaped structure, comprising an integrally formed fourth thick-walled support block and a fourth plate body, and a pair of second threaded holes are formed on the fourth thick-walled support block;

[0017] When the second screw passes through the second through hole and is screwed into the second threaded hole, the third clamping member fits the contour of one side of the second bulkhead, and the fourth clamping member fits the contour of the other side of the second bulkhead to clamp the second bulkhead between the third thick-walled support block, the third plate body, the fourth thick-walled support block and the fourth plate body.

[0018] In one embodiment disclosed in the present application, the mounting plate is connected between the first thin-walled support block and the second thin-walled support block by a third screw.

[0019] In one embodiment disclosed in the present application, a first mounting hole is provided on each of the first thin-walled support block and the second thin-walled support block;

[0020] The first thin-walled support block and the second thin-walled support block are respectively embedded with first support plate nuts through the first mounting holes on the sides away from the mounting plate to serve as connection interfaces of the mounting plate;

[0021] The third screw passes through the connection hole reserved in the mounting plate and the first mounting hole in sequence and is threadedly connected with the first supporting plate nut.

[0022] In one embodiment disclosed in the present application, the connecting hole is an elongated hole.

[0023] In one embodiment disclosed in the present application, the mounting plate is provided with a plurality of second mounting holes distributed at equal intervals;

[0024] A second support plate nut is embedded in the back of the mounting plate through the second mounting hole and is used to connect the device to the front of the mounting plate to achieve installation and fixation of the device.

[0025] In one embodiment disclosed in the present application, a pair of the first card sets are symmetrically provided along the length direction of the first bulkhead;

[0026] The second card set is symmetrically arranged in a pair along the length direction of the second bulkhead.

[0027] In one embodiment disclosed in the present application, the two first card members of a pair of the first card groups have the same structure, and the two second card members have mirror-symmetric structures;

[0028] The two third card components of the second card group are mirror-symmetrical in structure, and the two fourth card components are identical in structure.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The mounting plate for the additional equipment is connected by means of the second clamp and the third clamp respectively engaged with the first bulkhead and the second bulkhead, so that the additional equipment can be fixed on the mounting plate without destroying the original bulkhead structure, that is, on the premise that the bulkhead is intact, which greatly shortens the modification period and reduces the modification cost, and does not affect the return of the aircraft after the lease expires.

[0031] 2. A first thin-walled support block of a second card member of a pair of first card groups and a second thin-walled support block of a third card member of a pair of second card groups can provide four connection interfaces of the mounting plate to form four supports on the back of the mounting plate, thereby improving the firmness of the mounting plate after connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0035] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0036] Figure 4 It is a schematic diagram of the three-dimensional structure of the first card group and the partition frame;

[0037] Figure 5 It is a schematic diagram of the three-dimensional structure of the second card group and the partition frame;

[0038] Figure 6 The three-dimensional structure of the third clamp is shown in FIG. Figure 1 ;

[0039] Figure 7 The three-dimensional structure of the third clamp is shown in FIG. Figure 2 ;

[0040] Figure 8 It is a schematic diagram of the three-dimensional structure of the fourth clamp. DETAILED DESCRIPTION

[0041] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0042] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 directly connected or indirectly connected 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.

[0045] In the present invention, 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.

[0046] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention.

[0047] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0048] See also Figures 1 to 8 As shown, the present invention provides an equipment fixing assembly on an aircraft bulkhead, comprising:

[0049] The first card set 100 includes a first card member 110 and a second card member 120;

[0050] The second card set 200 is provided with a third card member 210 and a fourth card member 220; and

[0051] The mounting plate 300 is connected between the second clamping member 120 and the third clamping member 210 and is used for mounting and fixing the device 500;

[0052] The first clamp 110 and the second clamp 120 are connected by a first screw to be fixedly engaged with the first bulkhead 400A, and the third clamp 210 and the fourth clamp 220 are connected by a second screw to be fixedly engaged with the second bulkhead 400B.

[0053] Specifically, the first bulkhead 400A and the second bulkhead 400B have exactly the same structure, and are numbered for easy distinction; they are arranged at intervals and have a certain curvature (arc-shaped structure in the length direction), and their cross-sections are similar to Z-shaped structures.

[0054] See also Figure 2 to Figure 4As shown, the first clamp 110 is an L-shaped structure, which includes an integrally formed first thick-walled support block 111 and a first plate body 112, and a pair of first through holes are opened on the first plate body 112; the second clamp 120 is a Z-shaped structure, which includes an integrally formed second thick-walled support block 121, a second plate body 122 and a first thin-walled support block 123 and arranged in sequence, and a pair of first threaded holes are opened on the second thick-walled support block 121; when the first screw passes through the first through hole and is screwed into the first threaded hole, the first clamp 110 fits the contour of one side of the first bulkhead 400A, and the second clamp 120 fits the contour of the other side of the first bulkhead 400A to clamp the first bulkhead 400A between the first thick-walled support block 111, the first plate body 112, the second thick-walled support block 121 and the second plate body 122. By means of the fastening force of the first screw being screwed into the first threaded hole, the L-shaped corner piece formed by the first thick-walled support block 111 and the first plate body 112 is buckled together with the L-shaped corner piece formed by the second thick-walled support block 121 and the second plate body 122, and the first card group 100 can be clamped on the first partition frame 400A having a Z-shaped cross-section by means of friction clamping, thereby achieving the purpose of fixation.

[0055] See also Figure 2 and Figures 5 to 8 As shown, the third clamp 210 is a T-shaped structure, which includes an integrally formed second thin-walled support block 211, a third thick-walled support block 212 and a third plate body 213, the second thin-walled support block 211 and the third thick-walled support block 212 are connected back to back to the same end of the third plate body 213, and a pair of second through holes are provided on the third plate body 213; the fourth clamp 220 is an L-shaped structure, which includes an integrally formed fourth thick-walled support block 221 and a fourth plate body 222, and a pair of second threaded holes are provided on the fourth thick-walled support block 221; when the second screw passes through the second through hole and is screwed into the second threaded hole, the third clamp 210 fits the contour of one side of the second bulkhead 400B, and the fourth clamp 220 fits the contour of the other side of the second bulkhead 400B to clamp the second bulkhead 400B between the third thick-walled support block 212, the third plate body 213, the fourth thick-walled support block 221 and the fourth plate body 222. By means of the fastening force of the second screw being screwed into the second threaded hole, the L-shaped corner piece formed by the third thick-walled support block 212 and the third plate body 213 is buckled together with the L-shaped corner piece formed by the fourth thick-walled support block 221 and the fourth plate body 222, and the second card group 200 can be clamped on the first partition frame 400B having a Z-shaped cross-section by means of friction clamping, thereby achieving the purpose of fixation.

[0056] The mounting plate 300 is connected between the first thin-walled support block 123 and the second thin-walled support block 211 through the third screw. Specifically, the first thin-walled support block 123 and the second thin-walled support block 211 are both provided with a first mounting hole, and the first support plate nut is respectively embedded through the first mounting hole on the side of the first thin-walled support block 123 and the second thin-walled support block 211 away from the mounting plate 300 to serve as a connection interface of the mounting plate 300. The third screw passes through the connection hole 310 and the first mounting hole reserved in the mounting plate 300 in sequence and is threadedly connected with the first support plate nut. In this way, the device can be installed on the mounting plate 300. That is to say, the mounting plate 300 for the added equipment is connected by means of the second clamp 120 and the third clamp 210 respectively engaging with the first bulkhead 400A and the second bulkhead 400B, so that the fixing of the added equipment on the mounting plate 300 is completed without destroying the original bulkhead structure, that is, on the premise that the bulkhead is intact, thereby greatly shortening the modification period and reducing the modification cost, and at the same time does not affect the termination of the aircraft lease after the expiration of the lease.

[0057] The method for adding equipment improves conventional fixing methods such as drilling holes and riveting on the fuselage bulkhead structure by connecting the first card group 100 and the second card group 200 using friction clamping. Under the condition of no special strength requirements, it can solve the problem of fixing general avionics equipment without drilling holes in the bulkhead. It has been applied in actual aircraft modification projects and has passed the approval of the Important Modification Design Approval (MDA) of the Civil Aviation Administration of China.

[0058] In order to adjust the position of the mounting plate 300 to eliminate mounting errors, the connecting hole 310 is preferably a long hole (ie, a waist hole).

[0059] The mounting plate 300 is provided with a plurality of second mounting holes which are equally spaced. A second support plate nut is embedded through the second mounting hole on the back side of the mounting plate 300 (the side facing the first thin-walled support block 123 and the second thin-walled support block 211) and is used to connect the device to the front side of the mounting plate 300 to achieve installation and fixation of the device.

[0060] In this embodiment, the first card group 100 is symmetrically provided with a pair along the length direction of the first bulkhead 400A, and the second card group 200 is symmetrically provided with a pair along the length direction of the second bulkhead 400B. The first thin-walled support block 123 of the second card member 120 of the first card group 100 and the second thin-walled support block 211 of the third card member 210 of the second card group 200 can provide four connection interfaces of the mounting plate 300 to form four supports on the back of the mounting plate 300, thereby improving the firmness of the mounting plate 300 after connection.

[0061] Since the first bulkhead 400A and the second bulkhead 400B have an arc relationship, in order to ensure that the mounting plate 300 can be supported between the first thin-walled support block 123 and the second thin-walled support block 211 in a surface contact manner when connected, the two first clamps 110 of a pair of first clamp groups 100 have the same structure, and the two second clamps 120 have mirror-symmetric structures, and the two third clamps 210 of a pair of second clamp groups 200 have mirror-symmetric structures, and the two fourth clamps 220 have the same structure. Specifically, the first thin-walled support blocks 123 of the two second clamps 120 are tilted at a certain angle to align on the first bulkhead 400A and are in the same plane, and the second thin-walled support blocks 211 of the two third clamps 210 are tilted at a certain angle to align on the second bulkhead 400B and are in the same plane.

[0062] The above embodiments are only preferred embodiments of the present invention and are not limitations of the technical solutions of the present invention. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present invention.

Claims

1. An equipment fixing assembly on an aircraft bulkhead, characterized in that: include: The first card group includes a first card component and a second card component; The second card set includes a third card component and a fourth card component; and A mounting plate, connected between the second clamp and the third clamp, used for mounting and fixing the device; The first clamping member and the second clamping member are connected by a first screw to be fixedly engaged on the first bulkhead, and the third clamping member and the fourth clamping member are connected by a second screw to be fixedly engaged on the second bulkhead.

2. The equipment fixing assembly on the aircraft bulkhead according to claim 1, characterized in that: The first clamping member is in an L-shaped structure, comprising an integrally formed first thick-walled support block and a first plate body, wherein the first plate body is provided with a pair of first through holes; The second clamping member is in a Z-shaped structure, comprising a second thick-walled support block, a second plate body and a first thin-walled support block which are integrally formed and sequentially arranged, and a pair of first threaded holes are formed on the second thick-walled support block; When the first screw passes through the first through hole and is screwed into the first threaded hole, the first clamping member fits the contour of one side of the first bulkhead, and the second clamping member fits the contour of the other side of the first bulkhead to clamp the first bulkhead between the first thick-walled support block, the first plate body, the second thick-walled support block and the second plate body.

3. The equipment fixing assembly on the aircraft bulkhead according to claim 2, characterized in that: The third clamping member is in a T-shaped structure, comprising an integrally formed second thin-walled support block, a third thick-walled support block and a third plate body, wherein the second thin-walled support block and the third thick-walled support block are connected back to back to the same end of the third plate body, and a pair of second through holes are opened on the third plate body; The fourth clamping member is in an L-shaped structure, comprising an integrally formed fourth thick-walled support block and a fourth plate body, and a pair of second threaded holes are formed on the fourth thick-walled support block; When the second screw passes through the second through hole and is screwed into the second threaded hole, the third clamping member fits the contour of one side of the second bulkhead, and the fourth clamping member fits the contour of the other side of the second bulkhead to clamp the second bulkhead between the third thick-walled support block, the third plate body, the fourth thick-walled support block and the fourth plate body.

4. The equipment fixing assembly on the aircraft bulkhead according to claim 3, characterized in that: The mounting plate is connected between the first thin-wall support block and the second thin-wall support block through a third screw.

5. The equipment fixing assembly on the aircraft bulkhead according to claim 4, characterized in that: The first thin-walled support block and the second thin-walled support block are both provided with a first mounting hole; The first thin-walled support block and the second thin-walled support block are respectively embedded with first support plate nuts through the first mounting holes on the sides away from the mounting plate to serve as connection interfaces of the mounting plate; The third screw passes through the connection hole reserved in the mounting plate and the first mounting hole in sequence and is threadedly connected with the first supporting plate nut.

6. The equipment fixing assembly on the aircraft bulkhead according to claim 5, characterized in that: The connecting hole is an elongated hole.

7. The equipment fixing assembly on an aircraft bulkhead according to any one of claims 1 to 6, characterized in that: The mounting plate is provided with a plurality of second mounting holes distributed at equal intervals; A second support plate nut is embedded in the back of the mounting plate through the second mounting hole and is used to connect the device to the front of the mounting plate to achieve installation and fixation of the device.

8. The equipment fixing assembly on the aircraft bulkhead according to claim 1 or 6, characterized in that: A pair of the first card groups are symmetrically arranged along the length direction of the first bulkhead; The second card set is symmetrically arranged in a pair along the length direction of the second bulkhead.

9. The equipment fixing assembly on the aircraft bulkhead according to claim 8, characterized in that: The two first card components of the first card group are identical in structure, and the two second card components are mirror-symmetrical in structure; The two third card components of the second card group are mirror-symmetrical in structure, and the two fourth card components are identical in structure.

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