An inspection mechanism for wing ribbed wall panels

Abstract

The present invention relates to the technical field of pressure detection, and discloses an inspection mechanism for wing ribbed wall panels, comprising a workbench and a dynamic pressure head. The ribbed wall panel to be detected is placed on the workbench, and the dynamic pressure head is driven to apply pressure to the ribbed wall panel to be detected. A trigger mechanism is installed on the dynamic pressure head, and a release mechanism is also installed on the workbench. The trigger mechanism is connected to the release mechanism, and the trigger mechanism is used to drive the release mechanism to release the pressure of the dynamic pressure head when the ribbed wall panel is broken under pressure. In the present invention, when the ribbed wall panel to be detected is broken, the trigger mechanism connects the dynamic pressure head with the release mechanism, and uses air resistance to limit the downward trend of the dynamic pressure head, that is, to achieve pressure relief on the dynamic pressure head, thereby avoiding the problem of a sudden drop of the dynamic pressure head due to the breakage of the workpiece.

Description

Technical Field

[0001] The invention relates to the technical field of pressure detection, in particular to an inspection mechanism for a wing ribbed wall panel. Background Art

[0002] The wing of an aircraft is one of its most important components. It is not only responsible for generating lift, but also has an important impact on the stability and maneuverability of the aircraft. The structure of the wing is complex and is usually composed of skin, beams, ribs and ribbed panels. Among them, ribbed panels are a common structural form, which consists of a flat plate and reinforcing ribs connected to it, which can improve the stiffness and strength of the wing.

[0003] After the ribbed siding is produced, it will be subjected to pressure testing and inspection. It can not only test the performance of the ribbed siding under different loads and ensure that it will not be excessively deformed or broken in actual use, but also help to discover potential problems in materials or design. Therefore, pressure testing and inspection of the ribbed siding is very necessary.

[0004] For example, a patent with publication number CN110398422B and publication date July 9, 2024 discloses a rapid pressure testing machine, which relates to the technical field of pressure testing devices, and includes a frame, on which a static pressure block and a dynamic pressure block are provided, and the dynamic pressure block is connected to an oil cylinder, and the oil cylinder is a bidirectional oil cylinder, and the two input ends of the oil cylinder are connected to an oil circuit control pipeline, and the input end of the oil circuit control pipeline is connected to an oil pump, and the oil pump is connected to a servo motor for adjusting the speed of the oil pump; a plurality of jacks are provided on the dynamic pressure block, and positioning columns are inserted in the jacks, and the plurality of positioning columns are all located on the same circumference with the center of the dynamic pressure block as the center; the positioning columns include positioning column one, positioning column two, positioning column three and positioning column four, and the positioning column one and The connecting line of the positioning column 2 is parallel to the connecting line of the positioning column 3 and the positioning column 4, and the distance between the positioning column 1 and the positioning column 2 is greater than the distance between the positioning column 3 and the positioning column 4; it includes a plurality of arc rings with different inner diameters, and a plurality of mounting holes are opened on the arc rings, and the mounting holes correspond to the positioning columns one by one, and the positioning columns include a column body, and a small column is provided on the top of the column body. The outer diameter of the column body is greater than the caliber of the mounting hole, and the outer diameter of the small column is smaller than the caliber of the mounting hole; the frame includes a top plate, a column and a bottom plate, and the two ends of the column are respectively welded and fixed to the bottom plate and the top plate; it includes the following steps: under the loading state, the servo motor controls the dynamic pressure block to descend a certain distance, and the distance is just enough to allow the next test block to be placed between the dynamic pressure block and the static pressure block.

[0005] Most of the existing pressure tests are performed by placing the workpiece to be tested on a workbench, and then a driving mechanism such as a hydraulic cylinder or an oil cylinder drives the pressure head to descend and applies pressure to the workpiece. During the test, the workpiece to be tested may break during the continuous application of pressure, and the driving mechanism has not stopped in time at this time, and the pressure is still being applied. If the pressure is not released and unloaded in time, it may cause damage to other parts of the device, and may also cause injury to the operator, resulting in a safety accident. Summary of the invention

[0006] The object of the present invention is to provide an inspection mechanism for wing ribbed panels to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an inspection mechanism for wing ribbed wall panels, comprising a workbench and a dynamic pressure head, the ribbed wall panels to be inspected are placed on the workbench, the dynamic pressure head is driven to apply pressure to the ribbed wall panels to be inspected, a trigger mechanism is installed on the dynamic pressure head, and a release mechanism is also installed on the workbench, the trigger mechanism is connected to the release mechanism, and the trigger mechanism is used to drive the release mechanism to release the pressure of the dynamic pressure head when the ribbed wall panels are broken under pressure.

[0008] Preferably, the trigger mechanism includes a trigger rod and a limit block, the trigger rod can be passively lifted and lowered vertically in the dynamic pressure head, and the descent of the trigger rod drives the limit blocks to extend from both sides of the dynamic pressure head.

[0009] Preferably, a chamber is provided inside the dynamic pressure head, a trigger rod is located inside the chamber, one end of the trigger rod is located in the chamber, and the other end can extend from the chamber, the trigger rod and the chamber form a sliding guide fit, the outer wall of the trigger rod is sleeved with a first spring, the first spring is located in the chamber, one end of the first spring is fixed to the trigger rod, and the other end is fixed to the inner wall of the dynamic pressure head, the limit blocks are horizontally arranged on both sides of the trigger rod, a first slide groove is provided inside the dynamic pressure head, the first slide groove is communicated with the chamber, the limit block is located in the first slide groove and forms a sliding guide fit with the first slide groove, and the limit block forms a wedge fit with the upper end of the trigger rod.

[0010] Preferably, the trigger rod includes a retracted state and a first extended state. In the retracted state, the first spring is in a stretched state, and the limit block is completely located in the slide groove. In the first extended state, one end of the trigger rod extends from the bottom opening of the dynamic pressure head, and the end of the limit block facing away from the trigger rod extends from the inside of the dynamic pressure head.

[0011] Preferably, the release mechanism includes a sleeve, a connecting plate and a pressure relief box, the sleeve is sleeved on the outer wall of the dynamic pressure head, the pressure relief box is installed on a workbench, a pressure relief chamber is opened inside the pressure relief box, a piston is installed in the pressure relief chamber, one end of the connecting plate is connected and fixed to the outer wall of the sleeve, and the other end extends into the interior of the pressure relief box, and the end extending into the pressure relief box is fixed to the piston, and a limiting groove is opened on the inner wall of the sleeve, and the limiting groove and the limiting block form a limiting interference fit.

[0012] Preferably, the sleeve is hollow, the dynamic pressure head is cylindrical, the axis of the sleeve and the axis of the dynamic pressure head are located on the same straight line, and a circular hole is opened inside the sleeve, and the aperture of the circular hole is slightly larger than the diameter of the dynamic pressure head.

[0013] Preferably, the trigger rod comprises a first rod and a second rod, the first rod is located below the second rod, and an adjusting mechanism is installed on the dynamic pressure head, and the adjusting mechanism is used to drive the upper end of the first rod to clamp the lower end of the second rod.

[0014] Preferably, the trigger rod further includes a second extended state, in which the first rod and the second rod are separated from each other, the lower end of the first rod extends from the bottom of the dynamic pressure head, and the second rod remains stationary.

[0015] Preferably, the adjustment mechanism includes a pressure block, which is installed at the lower end of the dynamic pressure head. A vertical rod is installed on the upper surface of the pressure block, and the upper end of the vertical rod extends into the dynamic pressure head. A receiving groove is provided at the lower end of the second rod, and second slide grooves are provided on both sides of the receiving groove. A clamping block is installed in the second slide groove, and the clamping block forms a wedge-shaped fit with the vertical rod and a sliding guide fit with the second slide groove. The clamping block forms a limiting interference fit with the upper end of the second rod.

[0016] Preferably, a vertical groove matched with the vertical rod is further provided inside the dynamic pressure head, the vertical rod is located in the vertical groove and forms a sliding guide with the vertical groove, and a protrusion is provided on the side of the vertical rod.

[0017] The beneficial effect of the present invention is that in the above technical scheme, when the ribbed wall panel to be tested is broken, the trigger mechanism in the present invention connects the dynamic pressure head with the release mechanism, and uses air resistance to limit the downward trend of the dynamic pressure head, that is, to achieve pressure relief on the dynamic pressure head, avoiding the problem of a sudden drop of the dynamic pressure head due to the breakage of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the structure provided by an embodiment of the present invention;

[0020] Figure 2 An internal cross-sectional view of a dynamic pressure head in one of the embodiments provided in the embodiment of the present invention;

[0021] Figure 3 An internal cross-sectional view of a dynamic pressure head in another embodiment provided by the embodiment of the present invention;

[0022] Figure 4 The embodiment of the present invention provides Figure 3 A in the enlarged view;

[0023] Figure 5 The embodiment of the present invention provides Figure 4 Schematic diagram of the clamping structure of the first rod and the second rod in FIG.

[0024] Description of reference numerals:

[0025] 1. Workbench; 11. Bracket; 2. Dynamic pressure head; 3. Ribbed wall panel; 4. Trigger mechanism; 41. Trigger rod; 411. First rod; 412. Second rod; 413. Accommodating groove; 414. Second slide groove; 415. Block; 42. Limit block; 43. First spring; 44. First slide groove; 5. Release mechanism; 51. Sleeve; 52. Limit groove; 53. Connecting plate; 54. Pressure relief box; 55. Pressure relief chamber; 56. Piston; 6. Driving mechanism; 7. Adjusting mechanism; 71. Pressure block; 72. Vertical rod. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention 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 the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" 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 mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figure 1-5As shown, an embodiment of the present invention provides an inspection mechanism for a wing ribbed wall panel 3, comprising a workbench 1 and a dynamic pressure head 2. The ribbed wall panel 3 to be inspected is placed on the workbench 1, and the dynamic pressure head 2 is driven to apply pressure to the ribbed wall panel 3 to be inspected. A trigger mechanism 4 is installed on the dynamic pressure head 2, and a release mechanism 5 is also installed on the workbench 1. The trigger mechanism 4 is connected to the release mechanism 5, and the trigger mechanism 4 is used to drive the release mechanism to release the pressure of the dynamic pressure head 2 when the ribbed wall panel 3 is broken under pressure.

[0029] Specifically, the upper surface of the workbench 1 is horizontal and is provided with two groups of support blocks. The ribbed wall panel 3 to be tested is placed on the two groups of support blocks, and the dynamic pressure head 2 corresponds to the middle position of the two groups of support blocks. A bracket 11 is installed on the workbench 1, and a driving mechanism 6 is installed on the bracket 11. The driving mechanism 6 is used to drive the dynamic pressure head 2 to descend and apply pressure to the ribbed wall panel 3. The driving mechanism 6 can be a linear driving device such as a hydraulic cylinder or an oil cylinder. The pressure is continuously applied until the ribbed wall panel 3 to be tested is broken. When it is broken, the pressure value applied by the dynamic pressure head 2 to the ribbed wall panel 3 can be detected by a detection mechanism such as a pressure sensor, so as to realize the test of the maximum static load pressure of the ribbed wall panel 3. The detection mechanism is a prior art and will not be repeated. The release mechanism 5 is also installed on the bracket 11, and the trigger mechanism 4 is installed on the dynamic pressure head 2;

[0030] The trigger mechanism 4 includes a trigger rod 41 and a limit block 42 . The trigger rod 41 can be passively lifted and lowered vertically in the dynamic pressure head 2 . The descent of the trigger rod 41 drives the limit blocks 42 to extend from both sides of the dynamic pressure head 2 .

[0031] Specifically, Figure 2As shown, in the present embodiment, the axial direction of the trigger rod 41 is consistent with the axial direction of the dynamic pressure head 2, a chamber is provided inside the dynamic pressure head 2, the trigger rod 41 is located inside the chamber, one end of the trigger rod 41 is located in the chamber, and the other end can be extended from the bottom of the chamber, the trigger rod 41 and the chamber form a sliding guide cooperation, the outer wall of the trigger rod 41 is sleeved with a first spring 43, the first spring 43 is located in the chamber, one end of the first spring 43 is fixed to the trigger rod 41, and the other end is fixed to the inner wall of the dynamic pressure head 2, two limit blocks 42 are horizontally arranged on both sides of the trigger rod 41, a first slide groove 44 is provided inside the dynamic pressure head 2, the first slide groove 44 is communicated with the chamber, the limit block 42 is located in the first slide groove 44, and forms a sliding guide cooperation with the first slide groove 44, the two side surfaces of the upper end of the trigger rod 41 are inclined surfaces, and the limit block 42 is close to the trigger One side of the trigger rod 41 is also an inclined surface, and the limit block 42 and the upper end of the trigger rod 41 form a wedge-shaped fit. In this embodiment, two mutually symmetrical limit blocks 42 form a group. In this embodiment, multiple groups of limit blocks 42 can be provided. The upper end of the dynamic pressure head 2 is an inverted truncated cone structure, and the truncated cone structure has a certain height. Therefore, during use, the descent of the trigger rod 41 can sequentially push multiple groups of limit blocks 42 out of the first slide groove 44. It should be supplemented that a spring is installed in the first slide groove 44, one end of the spring is fixedly connected to the groove wall of the first slide groove 44, and the other end is fixedly connected to the outer wall of the limit block 42. When the limit block 42 is completely located in the first slide groove 44, the spring is in a natural state, and when one end of the limit block 42 extends out of the first slide groove 44, the spring is in a stretched state.

[0032] The trigger rod 41 includes a retracted state and a first extended state. The retracted state is the state in which the trigger rod 41 is retracted to the inside of the dynamic pressure head 2. At this time, the first spring 43 is in a stretched state, and the limit block 42 is completely located in the first slide groove 44. When the trigger rod 41 is in the first extended state, one end of the trigger rod 41 extends from the bottom opening of the dynamic pressure head 2, and the end of the limit block 42 away from the trigger rod 41 extends from the inside of the first slide groove 44. In actual use, when the driving mechanism 6 drives the dynamic pressure head 2 to descend and applies pressure to the ribbed wall panel 3 to be tested, the lower end surface of the dynamic pressure head 2 contacts the surface of the ribbed wall panel 3, and the trigger rod 41 is squeezed. The trigger rod 41 is in a retracted state when the ribbed wall panel 3 to be tested is broken, and the lower surface of the ribbed wall panel 3 is no longer in contact with the lower end surface of the dynamic pressure head 2. After the trigger rod 41 loses the resistance of the ribbed wall panel 3, the first spring 43 is reset and pushes the trigger rod 41 out of the dynamic pressure head 2, that is, the trigger rod 41 descends inside the dynamic pressure head 2, and the wedge-shaped fit drives the limit block 42 to move to the side away from the trigger rod 41. The movement of the limit block 42 drives the end of the limit block 42 away from the trigger rod 41 to extend from the first slide slot 44. At this time, the trigger rod 41 is in a first extended state.

[0033] The release mechanism 5 includes a sleeve 51, a connecting plate 53 and a pressure relief box 54. The sleeve 51 is sleeved on the outer wall of the dynamic pressure head 2. The pressure relief box 54 is installed on the workbench 1. A pressure relief chamber 55 is opened inside the pressure relief box 54. A piston 56 is installed in the pressure relief chamber 55. One end of the connecting plate 53 is connected and fixed to the outer wall of the sleeve 51, and the other end extends into the pressure relief box 54. The end extending into the pressure relief box 54 is fixed to the piston 56. The inner wall of the sleeve 51 is provided with a limit groove 52. There are multiple groups of limit grooves 52. The multiple groups of limit grooves 52 are equidistantly arranged along the length direction of the sleeve 51 to adapt to the dynamic pressure head 2 at different positions. The limit block 42 extends from the dynamic pressure head 2, and the limit groove 52 and the limit block 42 form a limit abutment fit.

[0034] Specifically, the sleeve 51 is hollow, the dynamic pressure head 2 is cylindrical, the axis of the sleeve 51 and the axis of the dynamic pressure head 2 are on the same straight line, a circular hole is opened inside the sleeve 51, and the aperture of the circular hole is slightly larger than the diameter of the dynamic pressure head 2, so when the driving mechanism 6 drives the dynamic pressure head 2 to rise and fall, the dynamic pressure head 2 will pass through the sleeve 51 and move inside the sleeve 51. In actual use, when the trigger rod 41 is in the first extended state, the limit block 42 extends from the side of the dynamic pressure head 2, and the extended One end of the limit block 42 enters the limit groove 52 provided on the inner wall of the sleeve 51. Since the ribbed wall plate 3 to be detected is broken, it can be understood that the lower ends of the dynamic pressure head 2 and the trigger rod 41 lose the support of the ribbed wall plate 3, and the dynamic pressure head 2 tends to move downward suddenly. Due to the extension of the limit block 42, the downward movement of the dynamic pressure head 2 will drive the sleeve 51 to move synchronously, and the sleeve 51 drives the connecting plate 53 to slide in the pressure relief box 54, and can drive the piston 56 to descend in the pressure relief box 54. , since the pressure relief chamber 55 is located below the piston 56, the pressure relief chamber 55 is a sealed chamber, and is affected by the internal air pressure. The descent of the piston 56 will squeeze the air in the pressure relief chamber 55. Since the gas volume in the pressure relief chamber 55 is constant, the higher the squeezing intensity, the greater the air resistance. Therefore, the piston 56 will be prevented from descending by the air resistance, that is, squeezing the pressure relief chamber 55. In other words, the piston 56 cannot continue to descend in the pressure relief box 54, but the air in the pressure relief chamber 55 can be compressed to achieve a small descent, and the descent speed will become slower due to the influence of air resistance. Because the piston 56, the connecting plate 53, the sleeve 51 and the dynamic pressure head 2 move synchronously, when the piston 56 is restricted during descent, the descent of the dynamic pressure head 2 will also be restricted. It can be understood that the downward trend of the dynamic pressure head 2 is limited by air resistance, that is, the pressure relief of the dynamic pressure head 2 is achieved, and the problem of a sudden drop of the dynamic pressure head 2 due to the breakage of the workpiece is avoided.

[0035] like Figure 3-5As shown, in another embodiment of the present invention, based on the above embodiment, in the first extended state, the trigger rod 41 relies on the elastic force of the first spring 43 to reset and drive the trigger rod 41 to extend from the inside of the dynamic pressure head 2. However, in the normal lifting of the dynamic pressure head 2, when the dynamic pressure head 2 moves to the inside of the sleeve 51, the lower end of the trigger rod 41 will still extend from the inside of the dynamic pressure head 2, causing the trigger rod 41 to be in the first extended state, that is, the trigger rod 41 at this time is not extended from the lower end of the dynamic pressure head 2 due to the fracture of the ribbed wall panel 3 to be tested, and the dynamic pressure head 2 cannot continue to descend and contact with the ribbed wall panel 3 to be tested, thereby affecting the pressure detection of the ribbed wall panel 3. Therefore, in this embodiment, the trigger rod 41 includes a first rod 411 and a second rod 412, the first rod 411 is located below the second rod 412, and an adjustment mechanism 7 is also installed on the dynamic pressure head 2, and the adjustment mechanism 7 is used to drive the upper end of the first rod 411 to clamp the lower end of the second rod 412.

[0036] Specifically, the trigger rod 41 is a split structure, the first spring 43 is sleeved on the outer wall of the first rod 411, the limit blocks 42 are located on both sides of the second rod 412, the limit blocks 42 cooperate with the inclined surfaces on the second rod 412, and the trigger rod 41 also includes a second extended state. In the second extended state, the first rod 411 and the second rod 412 are separated from each other, the lower end of the first rod 411 extends from the bottom of the dynamic pressure head 2, and the second rod 412 remains stationary, that is, the limit block 42 is located in the first slide groove 44 and does not extend from the bottom of the dynamic pressure head 2. The trigger rod 41 extends out of the first slide groove 44, and in the first extended state, the first rod 411 and the second rod 412 are engaged with each other, the first rod 411 extends from the bottom of the dynamic pressure head 2, and drives the second rod 412 to descend synchronously. Therefore, when the ribbed wall panel 3 to be tested is broken, the trigger rod 41 is in the first extended state, and when the dynamic pressure head 2 is in a normal lifting process, the trigger rod 41 is in the second extended state. In the second extended state, since the limit block 42 does not extend out of the first slide groove 44, it does not constitute a The dynamic pressure head 2 can be raised and lowered in the sleeve 51 by the limiting abutment with the limiting groove 52 on the inner wall of the sleeve 51 until the dynamic pressure head 2 abuts against the ribbed wall panel 3, and the first rod 411 abuts against the ribbed wall panel 3. At this time, although the extended first rod 411 contacts the ribbed wall panel 3, it does not apply pressure to the ribbed wall panel 3. The extended first rod 411 can be used to pre-judge the pressure position. When the staff finds that the pressure position is wrong at this time, the pressure position can be adjusted by moving the ribbed wall panel 3. As the dynamic pressure head 2 continues to descend, the dynamic pressure head 2 contacts the ribbed wall panel 3. At this time, the trigger rod 41 moves from the second extended state to the retracted state. The first rod 411 and the second rod 412 are both located inside the dynamic pressure head 2 until the ribbed wall panel 3 to be tested breaks. The trigger rod 41 moves from the retracted state to the first extended state. The first rod 411 extends from the bottom of the dynamic pressure head 2 and drives the second rod 412 to descend, driving one end of the limit block 42 to extend from the first slide groove 44 and enter the limit groove 52.

[0037] In an optional embodiment, preferably, the adjustment mechanism 7 includes a pressure block 71, which is installed at the lower end of the dynamic pressure head 2. A vertical rod 72 is installed on the upper surface of the pressure block 71, and the upper end of the vertical rod 72 extends into the dynamic pressure head 2. A receiving groove 413 is provided at the lower end of the second rod 412, and second slide grooves 414 are provided on both sides of the receiving groove 413. A clamping block 415 is installed in the second slide groove 414, and the clamping block 415 forms a wedge-shaped fit with the vertical rod 72 and a sliding guide fit with the second slide groove 414. The clamping block 415 forms a limiting interference fit with the upper end of the second rod 412.

[0038] Specifically, Figure 4 As shown, the interior of the dynamic pressure head 2 is also provided with a vertical groove adapted to the vertical rod 72, the vertical rod 72 is located in the vertical groove, and forms a sliding guide with the vertical groove, and a protrusion is provided on the side of the vertical rod 72, which can prevent the vertical rod 72 from completely falling out of the vertical groove, the second slide groove 414 is connected with the receiving groove 413, and a hole is provided inside the pressure block 71, and the first rod 411 passes through the pressure block 71 through the hole, the first rod 411 is a T-shaped structure, and the second rod 412 is a structure similar to an "I" shape, and the upper end of the first rod 411 can rise and extend into the receiving groove 413;

[0039] When the trigger rod 41 is in the second extended state, the lower end of the trigger rod 41 does not contact the ribbed wall plate 3 to be detected, the first rod 411 is located directly below the accommodating groove 413, the opening of the accommodating groove 413 faces downward, one end of the clamping block 415 close to the accommodating groove 413 is located in the second sliding groove 414, and the other end extends out of the second sliding groove 414, and both ends of the clamping block 415 are also provided with inclined surfaces, and one end extending out of the second sliding groove 414 forms a wedge-shaped fit with the vertical rod 72 through the inclined surface, and the other end forms a wedge-shaped fit with the first rod 411 through the inclined surface, the pressure block 71 is suspended below the dynamic pressure head 2, the lower end of the vertical rod 72 extends out of the dynamic pressure head 2, and a distance is left between the pressure block 71 and the lower end surface of the dynamic pressure head 2;

[0040] As the dynamic pressure head 2 continues to descend, when the lower end of the first rod 411 descends and contacts the ribbed wall panel 3 to be tested, the first rod 411 is resisted by the ribbed wall panel 3 and shrinks into the dynamic pressure head 2, that is, the first rod 411 rises in the dynamic pressure head 2. When the lower end of the first rod 411 is flush with the lower end surface of the pressure block 71, it means that the pressure block 71 and the lower end of the first rod 411 are in contact with the ribbed wall panel 3 at the same time. In this embodiment, the surface of the ribbed wall panel 3 to be tested is horizontal, and then the pressure block 71 and the first rod 411 move synchronously until the pressure block 71 is attached to the lower surface of the dynamic pressure head 2. During this movement, the upper end of the first rod 411 moves to the receiving The vertical rod 72 is driven by the pressure block 71 to retract into the dynamic pressure head 2, that is, the vertical rod 72 rises in the dynamic pressure head 2, and the vertical rod 72 contacts with one end of the block 415 extending out of the second slide groove 414 during the rising process, and drives the block 415 to slide in the second slide groove 414 under the wedge-shaped cooperation with the inclined surface, so that the other end of the block 415 extends into the interior of the receiving groove 413 and clamps the upper end of the first rod 411, and the first rod 411 is restricted in the interior of the receiving groove 413 by the block 415 to realize the clamping connection between the first rod 411 and the second rod 412. At this point, the contracted state of the trigger rod 41 is formed, and it needs to be supplemented. Yes, a spring is also provided in the second slide groove 414, one end of the spring is connected to the groove wall of the second slide groove 414, and the other end is connected to the outer wall of the block 415. When one end of the block 415 extends out of the second slide groove 414, the spring is in a natural state, and a telescopic section is provided on the block 415, and the telescopic section divides the block 415 into two sections. The telescopic section is a block installed between the two sections of the block 415, and one end of the block is fixedly connected to one section of the block 415, and the block 415 is used to extend into the accommodating groove 413, and the other end of the block extends into the groove body opened in the other end block 415, and forms a sliding guide cooperation with the groove body, and the groove body A spring is also installed, one end of which is connected to the block body, and the other end is connected to the inner wall of the slot body. Another section of the block 415 is used to extend out of the second slide slot 414, and the spring in the second slide slot 414 is connected to another section of the block 415. This elastic telescopic structure is a prior art and will not be described in detail. Through the setting of the telescopic structure, when the block 415 extends into the receiving slot 413 before the upper end of the first rod 411, the rise of the first rod 411 will also squeeze the block 415. The wedge-shaped cooperation between the first rod 411 and the block 415 drives the block 415 to use the telescopic structure to retract itself, so that the first rod 411 can smoothly extend into the receiving slot 413.

[0041] Finally, when the ribbed wall panel 3 to be tested is broken, the lower end of the first rod 411 loses the resistance limit of the ribbed wall panel 3 and extends from the inside of the dynamic pressure head 2, that is, the first rod 411 descends and drives the second rod 412 to descend synchronously. At the same time, since the vertical rod 72 has a certain friction with the inner wall of the vertical groove, the vertical rod 72 descends relatively slowly under the action of the friction, and the second rod 412 is quickly extended under the drive of the first spring 43. At the same time, one end of the clamping block 415 extending out of the second slide groove 414 abuts against the vertical rod 72 and slides on the vertical rod 72, that is, the clamping block 415 still remains contracted in the second slide groove 414, and the first rod 411 and the second rod 412 still remain engaged. As the second rod 412 extends, the limit block 42 extends from the side of the dynamic pressure head 2 and is fixed to the limit groove 52 on the inner wall of the sleeve 51. The clamping connection realizes the pressure relief of the dynamic pressure head 2 under the action of the connecting plate 53, the piston 56 and the pressure relief chamber to prevent the dynamic pressure head 2 from falling suddenly. After a period of time, the pressure block 71 is reset under the influence of gravity, and the vertical rod 72 is also reset accordingly. After the clamping block 415 loses the resistance of the vertical rod 72, one end of the clamping block 415 extends out from the second slide groove 414 driven by the spring, and the other end extends from the accommodating groove 413 into the second slide groove 414. The first rod 411 and the second rod 412 lose the clamping connection, and the limit block 42 begins to reset under the drive of the spring in the second slide groove 414 and moves to the side close to the second rod 412. Under the wedge-shaped cooperation of the inclined surface, the second rod 412 is driven to reset and rise, and the second rod 412 is disconnected from the first rod 411, and the second extended state is formed, which does not affect the extension of the first rod 411.

[0042] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An inspection mechanism for wing ribbed panels, characterized in that: The invention comprises a workbench (1) and a dynamic pressure head (2). A ribbed wall panel (3) to be inspected is placed on the workbench (1). The dynamic pressure head (2) is driven to apply pressure to the ribbed wall panel (3) to be inspected. A trigger mechanism (4) is installed on the dynamic pressure head (2). A release mechanism (5) is also installed on the workbench (1). The trigger mechanism (4) is connected to the release mechanism (5). The trigger mechanism (4) is used to drive the release mechanism to release the pressure of the dynamic pressure head (2) when the ribbed wall panel (3) is broken under pressure. The trigger mechanism (4) comprises a trigger rod (41) and a limit block (42). The trigger rod (41) can be passively raised and lowered vertically in the dynamic pressure head (2). The lowering of the trigger rod (41) drives the limit blocks (42) to extend from both sides of the dynamic pressure head (2). A chamber is provided inside the dynamic pressure head (2). The trigger rod (41) is located inside the chamber, one end of the trigger rod (41) is located inside the chamber, and the other end can extend from the chamber, the trigger rod (41) and the chamber form a sliding guide match, the outer wall of the trigger rod (41) is sleeved with a first spring (43), the first spring (43) is located in the chamber, one end of the first spring (43) is fixed to the trigger rod (41), and the other end is fixed to the inner wall of the dynamic pressure head (2), the limit block (42) is horizontally arranged on both sides of the trigger rod (41), the dynamic pressure head (2) is provided with a first slide groove (44), the first slide groove (44) is connected to the chamber, the limit block (42) is located in the first slide groove (44), and forms a sliding guide match with the first slide groove (44), and the limit block (42) and the upper end of the trigger rod (41) form a wedge match.

2. The inspection mechanism for wing ribbed panels according to claim 1, characterized in that: The trigger rod (41) includes a retracted state and a first extended state. In the retracted state, the first spring (43) is in a stretched state and the limit block (42) is completely located in the slide groove. In the first extended state, one end of the trigger rod (41) extends from the bottom opening of the dynamic pressure head (2), and one end of the limit block (42) facing away from the trigger rod (41) extends from the inside of the dynamic pressure head (2).

3. The inspection mechanism for wing ribbed panels according to claim 1, characterized in that: The release mechanism (5) comprises a sleeve (51), a connecting plate (53) and a pressure relief box. The sleeve (51) is sleeved on the outer wall of the dynamic pressure head (2). The pressure relief box is installed on the workbench (1). A pressure relief chamber is provided inside the pressure relief box. A piston (56) is installed in the pressure relief chamber. One end of the connecting plate (53) is connected and fixed to the outer wall of the sleeve (51), and the other end extends into the interior of the pressure relief box. The end extending into the pressure relief box is fixed to the piston (56). A limiting groove (52) is provided on the inner wall of the sleeve (51). The limiting groove (52) and the limiting block (42) form a limiting abutment fit.

4. The inspection mechanism for wing ribbed panels according to claim 3, characterized in that: The sleeve (51) is hollow, the dynamic pressure head (2) is cylindrical, the axis of the sleeve (51) and the axis of the dynamic pressure head (2) are located on the same straight line, and a circular hole is provided inside the sleeve (51), the diameter of the circular hole being slightly larger than the diameter of the dynamic pressure head (2).

5. The inspection mechanism for wing ribbed panels according to claim 1, characterized in that: The trigger rod (41) comprises a first rod (411) and a second rod (412), the first rod (411) being located below the second rod (412), and an adjustment mechanism (7) is also installed on the dynamic pressure head (2), the adjustment mechanism (7) being used to drive the upper end of the first rod (411) to clamp the lower end of the second rod (412).

6. The inspection mechanism for wing ribbed panels according to claim 5, characterized in that: The trigger rod (41) further comprises a second extended state, in which the first rod (411) and the second rod (412) are separated from each other, the lower end of the first rod (411) extends from the bottom of the dynamic pressure head (2), and the second rod (412) remains stationary.

7. The inspection mechanism for wing ribbed panels according to claim 5, characterized in that: The adjustment mechanism (7) comprises a pressure block (71), the pressure block (71) being mounted on the lower end of the dynamic pressure head (2), a vertical rod (72) being mounted on the upper surface of the pressure block (71), the upper end of the vertical rod (72) extending into the interior of the dynamic pressure head (2), a receiving groove (413) being provided at the lower end of the second rod (412), second slide grooves (414) being provided on both sides of the receiving groove (413), a clamping block (415) being mounted in the second slide groove (414), the clamping block (415) forming a wedge-shaped fit with the vertical rod (72), and forming a sliding guide fit with the second slide groove (414), and the clamping block (415) forming a limit contact fit with the upper end of the second rod (412).

8. The inspection mechanism for wing ribbed panels according to claim 7, characterized in that: A vertical groove matched with the vertical rod (72) is also provided inside the dynamic pressure head (2). The vertical rod (72) is located in the vertical groove and forms a sliding guide with the vertical groove. A protrusion is provided on the side of the vertical rod (72).

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