Floor deformation device for seat dynamic test
By designing a seat dynamic test floor deformation device with pitch and roll brackets, the problems of poor flexibility and high cost of seat floor deformation test in the prior art are solved, and the multi-directional floor deformation and easy installation are achieved.
Patent Information
- Application Number
- CN202420165645.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-23
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-23
AI Technical Summary
The existing dynamic testing tooling is poor in flexibility when conducting seat floor deformation tests, and cannot achieve multi-directional floor deformation. It is complex in installation and high testing cost, so it cannot meet the dynamic verification requirements of aviation seats in extreme cases.
A dynamic test floor deformation device for seats is designed, including a pitch bracket and a roll bracket. The pitch and roll angle of the seat are adjusted through positioning grooves and reference holes, and the connection between sensors and seats is simplified, and the device structure is simplified. Reduces installation complexity.
It realizes flexible multi-directional floor deformation test of the seat, simplifies the device structure, reduces the test cost, and facilitates installation and use.
Smart Images
Figure CN222188756U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of testing equipment, in particular to a seat dynamic testing floor deformation device. Background Art
[0002] In addition to being an interior decoration of an aircraft, seats are also one of the main structures that affect the safety of passengers in a crash. In a survivable crash of a civil aircraft, the safety of the aviation seat system under extreme circumstances has become one of the key points in the development and airworthiness certification of aircraft seats. Domestic and foreign aircraft airworthiness regulations have put forward almost stringent crash impact requirements for aviation seats. Article 562 of the Civil Aviation Administration of China's normal and transport aircraft airworthiness standards (CCAR23 and CCAR25) puts forward specific requirements for the dynamic verification of aviation seats. They all propose that when testing seats installed on the floor, floor deformation must be taken into account, that is, before conducting a horizontal impact test, the connection device or floor rail used to connect the seat and restraint system to the fuselage structure must be preloaded so that the relative vertical offset of at least 10 degrees (pitch is not parallel), and one of the rails or connection devices must be preloaded at the same time to roll 10 degrees.
[0003] Usually, the dynamic impact trolley can only perform one-way impact tests. The floor deformation of the seat must be achieved through a special test device. In addition, the existing dynamic test tooling has poor flexibility and can only achieve floor deformation tests in a single direction. To complete the entire dynamic test, multiple sets of dynamic test tooling are required, which are complicated to install and have high test costs. Utility Model Content
[0004] In view of the above problems, the utility model provides a seat dynamic test floor deformation device.
[0005] The technical solution adopted by the utility model is as follows:
[0006] A seat dynamic test floor deformation device, comprising:
[0007] Connecting bottom plate, used to fix on the test bench;
[0008] Two pitch brackets are fixed on the connecting bottom plate at intervals, the two pitch brackets are respectively a pitch rear bracket and a pitch front bracket, wherein the pitch front bracket has a pitch reference hole and at least one pitch positioning hole;
[0009] A pitch base, one end of which is rotatably mounted on the pitch rear bracket, and the other end of which cooperates with the pitch front bracket. The pitch base and the pitch front bracket have a first positioning groove at the corresponding position, and the first positioning groove is used to correspond to the pitch reference hole or the pitch positioning hole. The pitch base is used to be connected to one side of the seat through a sensor;
[0010] Two rolling brackets are fixed on the connecting bottom plate at intervals, the two rolling brackets are respectively a front rolling bracket and a rear rolling bracket, wherein at least one rolling bracket has a rolling reference hole and rolling positioning holes arranged on both sides of the rolling reference hole;
[0011] A roll base is rotatably mounted on a roll front bracket and a roll rear bracket, wherein the rotation axis of the roll base is perpendicular to the rotation axis of the pitch base; a second positioning groove is provided at a position corresponding to the roll base and the roll bracket, wherein the second positioning groove is used to correspond to a roll reference hole or a roll positioning hole, and the roll base is used to be connected to the other side of the seat through a sensor.
[0012] The invention has a simple structure, is easy to install and has a low test cost. The front end of the pitch base of the invention can be lowered to adjust the pitch angle of the seat, and the roll base can rotate around the front and rear brackets to adjust the roll angle of the seat.
[0013] In actual use, the pitch base is rotatably connected to the pitch rear bracket via the first rotation axis; the roll base is rotatably connected to the roll front bracket and the roll rear bracket via the second rotation axis. The rotation axis of the pitch base coincides with the axis of the first rotation axis, and the rotation axis of the roll base coincides with the axis of the second rotation axis.
[0014] In one embodiment of the present invention, a first positioning pin is further included, and the first positioning pin is used to pass through the corresponding first positioning slot and the pitch reference hole, or pass through the corresponding first positioning slot and the pitch positioning hole.
[0015] When the first positioning pin passes through the corresponding first positioning slot and the pitch reference hole, the corresponding pitch angle is 0 degrees. The pitch positioning holes are set as required, for example, when the first positioning pin passes through the corresponding first positioning slot and the pitch positioning hole, the corresponding pitch angle is 10 degrees.
[0016] During the actual test, after the pitch base is adjusted into place, it is fixed to the pitch bracket by the first positioning pin.
[0017] In one embodiment of the present invention, a second positioning pin is further included, and the second positioning pin is used to pass through the corresponding second positioning groove and the rolling reference hole, or pass through the corresponding second positioning groove and the rolling positioning hole.
[0018] When the second positioning pin passes through the corresponding second positioning groove and the rolling reference hole, the corresponding rolling angle is 0 degrees.
[0019] The roll positioning holes on both sides are set as needed. For example, when the second positioning pin passes through the corresponding second positioning groove and the roll positioning hole, the corresponding pitch angle is ±10 degrees.
[0020] During the actual test, after the rolling base is adjusted into place, it is restricted to the rolling bracket having the rolling reference hole and the rolling positioning hole by the second positioning pin.
[0021] In one embodiment of the utility model, the connecting base plate has a plurality of mounting holes, and the pitch rear bracket, pitch front bracket, roll rear bracket and roll front bracket all have strip holes, and each bracket is fixed to the connecting base plate by fasteners passing through the strip holes and the mounting holes.
[0022] The design of the adjustment holes facilitates adjustment when installing each bracket.
[0023] In one embodiment of the present invention, the mounting holes are arranged in a matrix.
[0024] In one embodiment of the present invention, the pitch front bracket has a pitch slide slot, through which the rotation of the pitch base can be observed.
[0025] In one embodiment of the present invention, the pitch base has a protrusion embedded in the pitch sliding groove.
[0026] In one embodiment of the present invention, the pitch base has a plurality of first connection holes, and the plurality of first connection holes are used to fix a single row or multiple rows of seats.
[0027] In one embodiment of the present invention, the rolling base has a plurality of second connection holes, and the plurality of second connection holes are used to fix a single row or multiple rows of seats.
[0028] In one embodiment of the present invention, the connecting base plate is used to be fixed on the test trolley by bolts.
[0029] The utility model has the advantages that the structure is simple, the installation is convenient, and the test cost is low. The front end of the pitching base of the utility model can be lowered to adjust the pitch angle of the seat, and the rolling base can rotate around the front and rear brackets to adjust the rolling angle of the seat. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is a schematic diagram of the floor deformation device for seat dynamic test.
[0031] The reference numerals in the figures are:
[0032] 1. Connecting base plate; 2. Pitch rear bracket; 3. Pitch base; 4. Pitch front bracket; 5. Rotation axis of pitch base; 6. Pitch positioning hole; 7. Pitch reference hole; 8. Pitch slide groove; 9. Roll rear bracket; 10. Roll base; 11. Roll front bracket; 12. Rotation axis of roll base; 13. Roll reference hole; 14. Roll positioning hole; 15. Mounting hole; 16. Strip hole; 17. First connecting hole; 18. Second connecting hole. DETAILED DESCRIPTION
[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0034] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does 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 cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0035] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0036] The utility model is described in detail below in conjunction with the accompanying drawings.
[0037] like Figure 1 As shown, a seat dynamic test floor deformation device comprises:
[0038] Connecting base plate 1, used for fixing on the test bench;
[0039] Two pitch brackets are fixed on the connecting bottom plate 1 at intervals, and the two pitch brackets are respectively a pitch rear bracket 2 and a pitch front bracket 4, wherein the pitch front bracket 4 has a pitch reference hole 7 and at least one pitch positioning hole 6;
[0040] A pitch base 3, one end of which is rotatably mounted on the pitch rear bracket 2, and the other end of which is matched with the pitch front bracket 4. The pitch base 3 has a first positioning groove (not shown in the figure) at the corresponding position of the pitch front bracket 4. The first positioning groove is used to correspond to the pitch reference hole 7 or the pitch positioning hole 6. The pitch base 3 is used to be connected to one side of the seat through a sensor;
[0041] Two rolling brackets are fixed on the connecting base plate 1 at intervals, and the two rolling brackets are respectively a front rolling bracket 11 and a rear rolling bracket 9, wherein at least one rolling bracket has a rolling reference hole 13 and rolling positioning holes 14 arranged on both sides of the rolling reference hole 13;
[0042] The roll base 10 is rotatably mounted on the roll front bracket 11 and the roll rear bracket 9, and the rotation axis of the roll base 10 is perpendicular to the rotation axis of the pitch base 3; the roll base 10 and the roll bracket have a second positioning groove (not shown in the figure), and the second positioning groove is used to correspond to the roll reference hole 13 or the roll positioning hole 14. The roll base 10 is used to connect to the other side of the seat through a sensor.
[0043] The present invention has a simple structure, is easy to install, and has a low test cost. The front end of the pitch base 3 of the present invention can be lowered to adjust the pitch angle of the seat, and the roll base 10 can rotate around the front and rear brackets to adjust the roll angle of the seat.
[0044] In actual use, the pitch base 3 is rotatably connected to the pitch rear bracket 2 via the first rotation axis; the roll base 10 is rotatably connected to the roll front bracket 11 and the roll rear bracket 9 via the second rotation axis. The rotation axis 5 of the pitch base coincides with the axis of the first rotation axis, and the rotation axis 12 of the roll base coincides with the axis of the second rotation axis.
[0045] In this embodiment, a first positioning pin (not shown in the figure) is further included, and the first positioning pin is used to pass through the corresponding first positioning slot and the pitch reference hole 7, or pass through the corresponding first positioning slot and the pitch positioning hole 6.
[0046] When the first locating pin passes through the corresponding first locating slot and the pitch reference hole 7, the corresponding pitch angle is 0 degrees. The pitch locating hole 6 is set as required, for example, when the first locating pin passes through the corresponding first locating slot and the pitch locating hole 6, the corresponding pitch angle is 10 degrees.
[0047] During the actual test, after the pitch base 3 is adjusted into place, it is fixed to the pitch bracket by the first positioning pin.
[0048] In this embodiment, a second positioning pin (not shown in the figure) is further included, and the second positioning pin is used to pass through the corresponding second positioning groove and the rolling reference hole 13, or pass through the corresponding second positioning groove and the rolling positioning hole 14.
[0049] When the second positioning pin passes through the corresponding second positioning groove and the rolling reference hole 13 , the corresponding rolling angle is 0 degree.
[0050] The roll positioning holes 14 on both sides are set as needed. For example, when the second positioning pin passes through the corresponding second positioning groove and the roll positioning hole 14, the corresponding pitch angle is ±10 degrees.
[0051] During the actual test, after the rolling base 10 is adjusted into place, it is restricted to the rolling bracket having the rolling reference hole 13 and the rolling positioning hole 14 by the second positioning pin.
[0052] In this embodiment, a plurality of mounting holes 15 are provided on the connecting base plate 1, and a strip hole 16 is provided on the pitch rear bracket 2, the pitch front bracket 4, the roll rear bracket 9 and the roll front bracket 11, and each bracket is fixed to the connecting base plate 1 by fasteners passing through the strip holes 16 and the mounting holes 15.
[0053] The design of the adjustment holes facilitates adjustment when installing each bracket.
[0054] In this embodiment, the mounting holes 15 are arranged in a matrix.
[0055] In this embodiment, a pitch slide groove 8 is provided on the pitch front bracket 4 , and the rotation of the pitch base 3 can be observed through the pitch slide groove 8 .
[0056] In this embodiment, the pitch base 3 has a protrusion (not shown in the figure) embedded in the pitch sliding groove 8 .
[0057] In this embodiment, the pitch base 3 has a plurality of first connection holes 17 , and the plurality of first connection holes 17 are used to fix a single row or multiple rows of seats.
[0058] In this embodiment, the rolling base 10 has a plurality of second connection holes 18 , and the plurality of second connection holes 18 are used to fix a single row or multiple rows of seats.
[0059] In this embodiment, the connecting base plate 1 is used to be fixed on the test bench by bolts.
[0060] The above description is only a preferred embodiment of the utility model, and does not limit the patent protection scope of the utility model. Any equivalent structural transformation made using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also included in the protection scope of the utility model.
Claims
1. A seat dynamic test floor deformation device, characterized in that: include: Connecting base plate, used for fixing on the test bench; Two pitch brackets are fixed on the connecting bottom plate at intervals, the two pitch brackets are respectively a pitch rear bracket and a pitch front bracket, wherein the pitch front bracket has a pitch reference hole and at least one pitch positioning hole; A pitch base, one end of which is rotatably mounted on the pitch rear bracket, and the other end of which cooperates with the pitch front bracket. The pitch base and the pitch front bracket have a first positioning groove at the corresponding position, and the first positioning groove is used to correspond to the pitch reference hole or the pitch positioning hole. The pitch base is used to be connected to one side of the seat through a sensor; Two rolling brackets are fixed on the connecting bottom plate at intervals, the two rolling brackets are respectively a front rolling bracket and a rear rolling bracket, wherein at least one rolling bracket has a rolling reference hole and rolling positioning holes arranged on both sides of the rolling reference hole; A roll base is rotatably mounted on a roll front bracket and a roll rear bracket, wherein the rotation axis of the roll base is perpendicular to the rotation axis of the pitch base; a second positioning groove is provided at a position corresponding to the roll base and the roll bracket, wherein the second positioning groove is used to correspond to a roll reference hole or a roll positioning hole, and the roll base is used to be connected to the other side of the seat through a sensor.
2. The seat dynamic test floor deformation device according to claim 1, characterized in that: It also includes a first positioning pin, which is used to pass through the corresponding first positioning slot and the pitch reference hole, or pass through the corresponding first positioning slot and the pitch positioning hole.
3. The seat dynamic test floor deformation device according to claim 1, characterized in that: It also includes a second positioning pin, which is used to pass through the corresponding second positioning groove and the rolling reference hole, or pass through the corresponding second positioning groove and the rolling positioning hole.
4. The seat dynamic test floor deformation device according to claim 1, characterized in that: The connecting base plate is provided with a plurality of mounting holes, and the pitch rear bracket, pitch front bracket, roll rear bracket and roll front bracket are all provided with strip holes, and each bracket is fixed to the connecting base plate by fasteners passing through the strip holes and the mounting holes.
5. The seat dynamic test floor deformation device according to claim 4, characterized in that: The mounting holes are arranged in a matrix.
6. The seat dynamic test floor deformation device according to claim 1, characterized in that: The pitch front bracket is provided with a pitch slide groove, through which the rotation of the pitch base can be observed.
7. The seat dynamic test floor deformation device according to claim 6, characterized in that: The pitch base is provided with a convex block embedded in the pitch sliding groove.
8. The seat dynamic test floor deformation device according to claim 1, characterized in that: The pitch base is provided with a plurality of first connection holes, and the plurality of first connection holes are used for fixing a single row or multiple rows of seats.
9. The seat dynamic test floor deformation device according to claim 1, characterized in that: The rolling base is provided with a plurality of second connection holes, and the plurality of second connection holes are used for fixing a single row or multiple rows of seats.
10. The seat dynamic test floor deformation device according to claim 1, characterized in that: The connecting base plate is used to be fixed on the test bench by bolts.