A time delay control device for an automatic unlocking device for paratroopers

Abstract

This invention relates to a delay control device for an automatic unlocking device used by paratroopers. The delay control device comprises a pointer, a flat plate assembly, a dial, a sector gear assembly, a transmission gear assembly, a first spring, a second spring, a locking pin, an adjusting wheel assembly, a transition ratchet assembly, and a balance wheel assembly. This invention enables precise adjustment and control of the time error of the automatic unlocking device, and its operation is simple and assembly efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of automatic unlocking device assembly technology for paratroopers, and specifically to the structure of an automatic unlocking device with control time performance and its assembly and debugging method. Background Technology

[0002] Automatic parachute release systems for paratroopers are required to deploy their parachutes after a pre-set delay following the paratrooper's exit from the aircraft, enabling a safe landing. Therefore, the automatic release system must have a delay function. Furthermore, since the required delay time varies depending on the mission of each paratrooper's jump, the automatic release system's delay function must be easily and quickly adjustable to meet operational needs. Summary of the Invention

[0003] The purpose of this invention is to provide an effective structure for controlling the time performance of an automatic unlocking device and its matching assembly and debugging method, so as to achieve convenient and quick adjustment of the delay function of the automatic unlocking device.

[0004] The technical solution of this invention is:

[0005] A delay control device for an automatic unlocking device for paratroopers is provided. The delay control device includes a pointer 2, a flat plate assembly 5, a dial 6, a sector gear assembly 7, a transmission gear assembly 8, a first spring 14, a second spring 15, a locking pin 16, an adjusting wheel assembly 17, a transition gear connected to a ratchet 18, and an adjusting swing plate connected to a balance wheel 19.

[0006] The flat plate assembly 5 includes an upper flat plate 27, a lower flat plate 28, a first support column 29, a third support column 43, a sector gear shaft 30, and a second support column 31; the first support column 29, the third support column 43, the sector gear shaft 30, and the second support column 31 are supported between the upper flat plate 27 and the lower flat plate 28, so that the upper flat plate 27 and the lower flat plate 28 are arranged in parallel; one corner of the lower flat plate 28 protrudes relative to the upper flat plate.

[0007] The sector gear assembly 7 includes a sector gear 32, a brake shaft 33, a brake arm 34, and a locking pin 35; the sector gear 32 is rotatably mounted on the sector gear shaft 30, and the brake shaft 33 is rotatably provided on the sector gear 32. The brake shaft is provided with a brake arm 34, and the end of the brake arm forms a locking pin 35; the second spring 15 is disposed between the brake pad 34 and the second support 31.

[0008] The pointer 2 includes a needle 20 and a bushing 21, which are fixed together as a whole; the pointer 2 is coaxially connected to the transmission gear assembly 8 and rotates as a whole; the relative angle between the needle 20 and the bushing 21 can be adjusted.

[0009] The transmission gear assembly 8 consists of a coaxial, integrally rotating transmission gear 22 and a transmission pinion 23.

[0010] The adjusting wheel assembly 17 consists of an adjusting pinion 36 and an adjusting wheel 37 that rotate coaxially.

[0011] The transition ratchet assembly 18 consists of a transition gear 38 and a transition pinion 39 that rotate coaxially.

[0012] The balance wheel assembly 19 consists of an adjusting vane 40 and a balance wheel 41 that rotate coaxially and integrally; the balance wheel 41 has a slot.

[0013] The sector gear 32 meshes with the transmission pinion 23, the transmission gear 22 meshes with the transition pinion 39, the transition gear 38 meshes with the adjusting pinion 36, and the adjusting wheel 37 meshes with the adjusting vane 40. The locking pin 35 is used to receive the thrust output from the power source and drive the sector gear to swing, so that the transmission pinion 23, transmission gear 22, transition pinion 39, transition gear 38, adjusting pinion 36, and adjusting wheel 37 can be linked. When the locking pin is inserted into the slot of the balance wheel 41 and locks the balance wheel, it can lock the adjusting vane 40 and the adjusting wheel 37. Conversely, it prevents the locking pin 35 from being pushed.

[0014] The first spring 14 is positioned between the sector gear 32 and the upper plate 27; it resets the sector gear 32 after the power source is depleted.

[0015] The dial 6 is fixedly connected to the upper plate 27, and the pointer 2 is coaxially fixed with the transmission pinion 23; the pointer matches the dial and can indicate the position of the pointer.

[0016] The upper plate 27 has an oblong hole, and the brake pad shaft 33 is slidably disposed in the oblong hole;

[0017] The transmission gear assembly 8, the adjusting wheel assembly 17, the transition ratchet assembly 18, the balance wheel assembly 19, and the sector gear assembly 7 are all located between the upper plate 27 and the lower plate 28.

[0018] Furthermore, the upper ends of the first support 29, the third support 43, the sector gear shaft 30, and the second support 31 all penetrate the upper plate 27 and are all connected to the mounting nut 4.

[0019] Furthermore, the transmission pinion 23 is pressed into the journal bushing of the transmission gear and fixed by the large cylindrical pin 25.

[0020] Furthermore, washers 9 are provided between each support of the flat plate assembly and the upper flat plate 27.

[0021] Furthermore, the brake plate 11 is fixed to the upper plate 27 by countersunk screws 10, and the adjusting nut 12 and adjusting screw 13 are installed on the brake plate 11, so that rotating the adjusting screw can push the locking pin 35 to determine the initial position of the locking pin.

[0022] Furthermore, the adjusting vane 40 and the balance wheel 41 can be locked together by the locking pin 42.

[0023] Furthermore, the pointer 2 is coaxially fixed to the transmission gear assembly 8 by the pointer screw 1.

[0024] Furthermore, the transition pinion 39 is pressed into the journal bushing of the transition gear 38 and fixed as a whole.

[0025] During adjustment, the locking pin 16 is inserted into the slot of the balance wheel to lock the balance wheel 19, causing all wheels and gears to stop rotating and the brake pad 34 to be locked. The delay structure is in its initial state at this time. After the locking pin is pulled out, the power source of the delay mechanism starts to run, and the delay begins. When the power source pushes the brake arm 34, the delay ends. The total delay time As between the start and end of the delay is measured by the testing equipment.

[0026] Based on the measurement results, compare the total delay time Bs required by the delay mechanism. If A = B, the total delay time adjustment is complete, and the adjusting nut 12 and adjusting screw 13 do not need to be adjusted. If A > B, rotate the adjusting screw 13 to increase the angle α between the brake pad and the lower plate, thereby reducing the total delay time. If A < B, rotate the adjusting screw 13 to decrease the angle α between the brake pad and the lower plate, thereby increasing the total delay time. After adjustment, recheck the total delay time As according to step ten. If A = B, the total delay time adjustment is complete. If A ≠ B, re-adjust according to the above steps until A = B.

[0027] Insert the locking pin 16 into the slot to put the delay structure in its initial state. Pull out the locking pin 16 and the delay mechanism will start working. The transmission gear assembly 8 will drive the pointer 20 to rotate. When the pointer 20 is aligned with the time mark Cs on the dial 6, insert the locking pin 16 to stop the gear train. Then, put the delay mechanism into the test equipment, pull out the locking pin 16, and measure the delay time Ds from this point to the end of the delay.

[0028] Compare Cs and Ds. If C = D, the debugging is complete. If C > D, remove pointer screw 1 and adjust the position of needle 20 relative to pointer sleeve 21 by an angle β to the left, where β = 0.7 × (C - D). If C < D, remove pointer screw 1 and adjust the position of needle 20 relative to pointer sleeve 21 by an angle γ to the right, where γ = 0.7 × (D - C). After debugging, recheck the delay time Ds. If C = D, the total delay time debugging is complete. If C ≠ D, re-debug until C = D.

[0029] The advantages of this invention are: it enables precise adjustment and control of the time error of the automatic unlocking device, and the operation method is simple and the assembly efficiency is high. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the delay control device.

[0031] Figure 2 This is a schematic diagram of the delay control device.

[0032] Figure 3 This is a top view of the delay control device.

[0033] Figure 4 This is a diagram of a locking pin.

[0034] Figure 5 This is a diagram showing the locking pin.

[0035] Figure 6 This is a partial structural diagram of the delay control device.

[0036] Figure 7 It is a structural cross-sectional view of the pointer.

[0037] Figure 8 This is a schematic diagram of the pointer structure.

[0038] Figure 9a This is a schematic diagram of the transmission gear.

[0039] Figure 9b This is a schematic diagram of the transmission gear assembly.

[0040] Figure 10a This is a cross-sectional view of the transmission pinion.

[0041] Figure 10b This is a front view of the transmission pinion.

[0042] Figure 11a This is a structural diagram of a flat panel assembly.

[0043] Figure 11b This is a structural diagram of a flat panel assembly.

[0044] Figure 12a This is a structural cross-sectional view of the sector gear assembly.

[0045] Figure 12b This is a front view of the sector gear assembly.

[0046] Figure 12c This is a schematic diagram of the sector gear assembly.

[0047] Figure 13a This is a schematic diagram of the second spring.

[0048] Figure 13b This is a schematic diagram of the first spring.

[0049] Figure 14a This is a schematic diagram of the transition ratchet assembly.

[0050] Figure 14b This is a schematic diagram of the transition ratchet assembly.

[0051] Figure 15a This is a front view of the adjusting wheel assembly.

[0052] Figure 15b This is a side view of the adjusting wheel assembly.

[0053] Figure 15c This is a schematic diagram of the adjusting wheel assembly.

[0054] Figure 16a This is a front view of the balance wheel assembly.

[0055] Figure 16b This is a structural cross-sectional view of the balance wheel assembly.

[0056] Figure 17a This is a partial sectional view of the delay control device.

[0057] Figure 17b This is a partial sectional view of the delay control device.

[0058] Figure 18 This is a diagram of the operation of the delay control device.

[0059] Figure 19 This is a diagram of the operation of the delay control device.

[0060] Figure 20 This is a diagram of the operation of the delay control device.

[0061] Figure 21a This is a diagram illustrating the pointer adjustment process.

[0062] Figure 21b This is a diagram illustrating the pointer adjustment process.

[0063] Figure 21c This is a diagram illustrating the pointer adjustment process.

[0064] Among them, 1-pointer screw, 2-pointer, 3-screw, 4-nut, 5-flat plate assembly, 6-dimming, 7-sector gear assembly, 8-transmission gear assembly, 9-washer, 10-countersunk screw, 11-brake plate, 12-adjusting nut, 13-adjusting screw, 14-first spring, 15-second spring, 16-soft locking pin, 17-pinion gear connected to adjusting wheel, 18-transition gear connected to ratchet, 19-adjusting swashplate connected to balance wheel, 20-pointer, 21-bushing, 22-transmission gear 23 - Transmission pinion, 24 - Small cylindrical pin, 25 - Large cylindrical pin, 26 - Transmission gear bushing, 27 - Upper plate, 28 - Lower plate, 29 - First support column, 30 - Sector gear shaft, 31 - Second support column, 32 - Sector gear, 33 - Brake pad shaft, 34 - Brake pad, 35 - Brake pin, 36 - Adjusting pinion, 37 - Adjusting wheel, 38 - Transition gear, 39 - Transition pinion, 40 - Adjusting sway bar, 41 - Balance wheel, 42 - Locking pin, 43 - Third support column. Detailed Implementation

[0065] The disclosed examples will be described more fully with reference to the accompanying drawings, in which some (but not all) of the disclosed examples are shown. In fact, many different examples may be described, and these examples should not be construed as limited to those set forth herein. Rather, these examples are described so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0066] A delay control device for an automatic unlocking device for paratroopers is provided. The delay control device includes a pointer 2, a flat plate assembly 5, a dial 6, a sector gear assembly 7, a transmission gear assembly 8, a first spring 14, a second spring 15, a locking pin 16, an adjusting wheel assembly 17, a transition gear connected to a ratchet 18, and an adjusting swing plate connected to a balance wheel 19.

[0067] The flat plate assembly 5 includes an upper flat plate 27, a lower flat plate 28, a first support column 29, a third support column 43, a sector gear shaft 30, and a second support column 31; the first support column 29, the third support column 43, the sector gear shaft 30, and the second support column 31 are supported between the upper flat plate 27 and the lower flat plate 28, so that the upper flat plate 27 and the lower flat plate 28 are arranged in parallel; one corner of the lower flat plate 28 protrudes relative to the upper flat plate.

[0068] The sector gear assembly 7 includes a sector gear 32, a brake shaft 33, a brake arm 34, and a locking pin 35; the sector gear 32 is rotatably mounted on the sector gear shaft 30, and the brake shaft 33 is rotatably provided on the sector gear 32. The brake shaft is provided with a brake arm 34, and the end of the brake arm forms a locking pin 35; the second spring 15 is disposed between the brake pad 34 and the second support 31.

[0069] The pointer 2 includes a needle 20 and a bushing 21, which are fixed together as a whole; the pointer 2 is coaxially connected to the transmission gear assembly 8 and rotates as a whole; the relative angle between the needle 20 and the bushing 21 can be adjusted.

[0070] The transmission gear assembly 8 consists of a coaxial, integrally rotating transmission gear 22 and a transmission pinion 23.

[0071] The adjusting wheel assembly 17 consists of an adjusting pinion 36 and an adjusting wheel 37 that rotate coaxially.

[0072] The transition ratchet assembly 18 consists of a transition gear 38 and a transition pinion 39 that rotate coaxially.

[0073] The balance wheel assembly 19 consists of an adjusting vane 40 and a balance wheel 41 that rotate coaxially and integrally; the balance wheel 41 has a slot.

[0074] The sector gear 32 meshes with the transmission pinion 23, the transmission gear 22 meshes with the transition pinion 39, the transition gear 38 meshes with the adjusting pinion 36, and the adjusting wheel 37 meshes with the adjusting vane 40. The locking pin 35 is used to receive the thrust output from the power source and drive the sector gear to swing, so that the transmission pinion 23, transmission gear 22, transition pinion 39, transition gear 38, adjusting pinion 36, and adjusting wheel 37 can be linked. When the locking pin is inserted into the slot of the balance wheel 41 and locks the balance wheel, it can lock the adjusting vane 40 and the adjusting wheel 37. Conversely, it prevents the locking pin 35 from being pushed.

[0075] The first spring 14 is positioned between the sector gear 32 and the upper plate 27; it resets the sector gear 32 after the power source is depleted.

[0076] The dial 6 is fixedly connected to the upper plate 27, and the pointer 2 is coaxially fixed with the transmission pinion 23; the pointer matches the dial and can indicate the position of the pointer.

[0077] The upper plate 27 has an oblong hole, and the brake pad shaft 33 is slidably disposed in the oblong hole;

[0078] The transmission gear assembly 8, the adjusting wheel assembly 17, the transition ratchet assembly 18, the balance wheel assembly 19, and the sector gear assembly 7 are all located between the upper plate 27 and the lower plate 28.

[0079] Table 1. Time Error Requirements for Automatic Lock Unlockers (S)

[0080] work point 2 3 4 5 6 Room temperature error (25±10)℃ ±0.12 ±0.20 ±0.20 ±0.30 ±0.30

[0081] Table 2. Time Error Inspection Results of Automatic Lock Unlocker (S)

[0082] work point 2 3 4 5 6 Normal temperature (25±10)℃ 2.06 3.11 4.05 5.22 6.21

[0083] Descriptions of various advantageous arrangements have been shown for illustrative and descriptive purposes, but such descriptions are not intended to be exclusive or limited to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. Furthermore, different advantageous examples may describe different advantages compared to other advantageous examples. One or more examples have been selected and described in order to best illustrate the principles and practical application of the examples, and to enable those skilled in the art to understand that this disclosure contains various examples with various modifications suitable for the particular intended use.

Claims

1. A delay control device for an automatic unlocking device for paratroopers, characterized in that: The delay control device includes a pointer, a flat plate assembly, a dial, a sector gear assembly, a transmission gear assembly, a first spring, a second spring, a locking pin, an adjusting wheel assembly, a transition ratchet assembly, and a balance wheel assembly. The flat plate assembly includes an upper flat plate, a lower flat plate, a first support column, a third support column, a sector gear shaft, and a second support column; the first support column, the third support column, the sector gear shaft, and the second support column are supported between the upper flat plate and the lower flat plate, so that the upper flat plate and the lower flat plate are arranged in parallel; one corner of the lower flat plate protrudes relative to the upper flat plate. The sector gear assembly includes a sector gear, a brake shaft, a brake arm, and a locking pin; the sector gear is rotatably mounted on the sector gear shaft, and the brake shaft is rotatably mounted on the sector gear; the brake shaft is provided with a brake arm, and the end of the brake arm forms a locking pin; a second spring is disposed between the brake pad and the second support. The pointer consists of a needle and a bushing, which are fixed together as one piece; the pointer is coaxially connected to the transmission gear assembly and rotates as a whole; the relative angle between the needle and the bushing is adjustable. The transmission gear assembly consists of a coaxial, integrally rotating transmission gear and a transmission pinion; The adjusting wheel assembly consists of a coaxially integrated adjusting pinion and adjusting wheel; The transition ratchet assembly consists of a transition gear and a transition pinion that rotate coaxially as a single unit. The balance wheel assembly consists of a coaxially integrated adjusting vane and a balance wheel; the balance wheel has a retaining groove. The sector gear meshes with the transmission pinion, the transmission pinion meshes with the transition pinion, the transition pinion meshes with the adjusting pinion, and the adjusting wheel meshes with the adjusting vane. The locking pin is used to receive the thrust output from the power source and drive the sector gear to swing, so that the transmission pinion, transmission pinion, transition pinion, transition pinion, adjusting pinion, and adjusting wheel can be linked. When the locking pin is inserted into the slot of the balance wheel and locks the balance wheel, it can lock the adjusting vane and the adjusting wheel, and in the opposite direction, it can prevent the locking pin from being pushed. The first spring is positioned between the sector gear and the upper plate; it resets the sector gear when there is no power source output. The dial is fixedly connected to the upper plate, and the pointer is fixed coaxially with the transmission pinion; the pointer matches the dial and can indicate the position of the pointer. The upper plate has an oblong hole, and the brake pad shaft is slidably disposed in the oblong hole; The transmission gear assembly, adjusting wheel assembly, transition ratchet assembly, balance wheel assembly, and sector gear assembly are all located between the upper and lower plates.

2. The delay control device for an automatic unlocking device for paratroopers according to claim 1, characterized in that: The upper ends of the first support, the third support, the sector gear shaft, and the second support all penetrate the upper plate and are all connected to the mounting nuts.

3. The delay control device for an automatic unlocking device for paratroopers according to claim 1, characterized in that: The small transmission gear is pressed into the journal bushing of the transmission gear and fixed by a large cylindrical pin.

4. The delay control device for an automatic unlocking device for paratroopers according to claim 1, characterized in that: Washers are installed between each support of the flat plate assembly and the upper flat plate.

5. The delay control device for an automatic unlocking device for paratroopers according to claim 1, characterized in that: The brake plate is fixed to the upper plate by countersunk screws. The adjusting nut and adjusting screw are installed on the brake plate so that rotating the adjusting screw can push the locking pin and determine the initial position of the locking pin.

6. The delay control device for an automatic unlocking device for paratroopers according to claim 1, characterized in that: The adjusting vane and the balance wheel can be locked together by a locking pin.

7. The delay control device for an automatic unlocking device for paratroopers according to claim 1, characterized in that: The pointer is fixed coaxially to the transmission gear assembly by a pointer screw.

8. The delay control device for an automatic unlocking device for paratroopers according to claim 1, characterized in that: The transition pinion is pressed into the journal bushing of the transition gear and fixed as a whole.

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