A release device based on safety net fall experiment

Abstract

The present invention discloses a release device based on a safety net falling experiment, which belongs to the technical field of release equipment for safety net falling experiments, and comprises a front baffle, a lifting mechanism, a rear baffle, a gathering mechanism and a releasing mechanism, wherein the lifting mechanism comprises a first electric cylinder, a right-angle rod, a second vertical frame and a lifting assembly, wherein the first electric cylinder is fixedly mounted on the side of the right-angle rod, the telescopic end of the first electric cylinder is connected to the lifting assembly, the lifting assembly is mounted on the second vertical frame, and the second vertical frame is fixedly mounted on the upper side of the right-angle rod; the gathering mechanism comprises a first driving assembly and a second driving assembly, the first driving assembly is connected to the front baffle, and the second driving assembly is connected to the rear baffle, the releasing mechanism comprises a second electric cylinder and a height adjusting assembly, the second electric cylinder is fixedly mounted on the first vertical frame, the second electric cylinder is connected to the height adjusting assembly, and the height adjusting assembly is connected to the first vertical frame. The present invention realizes the adjustment of the experimental height of the falling test, thereby improving adaptability.

Description

Technical Field

[0001] The invention relates to the technical field of releasing equipment for a safety net falling experiment, and in particular discloses a releasing device based on a safety net falling experiment. Background Art

[0002] The safety net fall test is a safety test conducted in a simulated fall scenario, which aims to evaluate the stress on the human body during the fall and the effectiveness of the protective equipment. In order to ensure the safety of the testers, researchers need to use a safety net and a corresponding release device. The release device of the safety net fall test is one of the key devices to ensure the safety of the testers.

[0003] The patent with publication number: CN103808482A discloses a releaser for a safety net fall test device. The technical solution of the patent is: it includes a shell and a hanging rod, a mounting tube is arranged under the shell, the hanging rod and the mounting tube are rotatably connected to each other, and the releaser also includes a fixed plunger, a connecting ear is arranged at one end of the hanging rod, and a plunger hole is arranged at the other end. However, the patent cannot adjust the experimental height of the fall test. Therefore, a release device based on the safety net fall test is invented to address this defect. Summary of the invention

[0004] In response to the above technical problems, the technical solution adopted by the present invention is: a release device based on a safety net falling experiment, including a front baffle, a rear baffle, a lifting mechanism, a gathering mechanism and a release mechanism, the lifting mechanism including a first electric cylinder, a right-angle rod, a first vertical frame and a lifting assembly, the first electric cylinder is fixedly installed on the side of the right-angle rod, the telescopic end of the first electric cylinder is connected to the lifting assembly, the lifting assembly is installed on the second vertical frame, and the second vertical frame is fixedly installed on the upper side of the right-angle rod.

[0005] The gathering mechanism is connected to the front baffle and the rear baffle respectively, and the lifting assembly is connected to the gathering mechanism; the releasing mechanism includes a second electric cylinder and a height adjustment assembly, the second electric cylinder is connected to the height adjustment assembly, and the height adjustment assembly is connected to the second vertical frame.

[0006] Further, the lifting assembly includes a first slider, the first slider is fixedly installed on the telescopic end of the first electric cylinder, the first slider is slidably installed on the side of the right-angle rod, a connecting shaft is fixedly installed on the first slider, a first connecting rod is rotatably installed on the outer surface of the connecting shaft, a mounting block is rotatably installed on the end of the first connecting rod away from the connecting shaft, a first turntable is fixedly installed on the side of the mounting block, a second slider is rotatably installed on the side of the first turntable, a second turntable is rotatably installed on the side of the second slider, a moving shaft is fixedly installed on the side of the second turntable, a sliding shaft is slidably installed on the outer surface of the moving shaft, a second connecting rod is fixedly installed on the side of the sliding shaft, a sixth slider is rotatably installed on the side of the second connecting rod, a side shaft is slidably installed on the side of the sixth slider, the side shaft is rotatably connected to the second connecting rod, and the side shaft is slidably connected to the moving shaft.

[0007] Furthermore, a first vertical groove is provided on the side of the first vertical frame, and the second slider is slidably installed on the inner wall of the first vertical groove. The lifting mechanism also includes a second vertical frame, a second vertical groove is provided on the side of the second vertical frame, and the sixth slider is slidably installed on the inner wall of the second vertical groove. A second slide groove is provided on the side of the right-angle rod, and a first movable plate is slidably installed on the inner wall of the second slide groove. A fifth slider is fixedly installed on the side of the first movable plate, and the fifth slider is slidably installed on the inner wall of the second slide groove. A cantilever shaft is fixedly installed on the side of the fifth slider, and the outer surface of the cantilever shaft is rotatably connected to the second connecting rod.

[0008] Furthermore, the gathering mechanism includes two slide rails, a first driving assembly and a second driving assembly. The first driving assembly is connected to the front baffle, the second driving assembly is connected to the rear baffle, the first driving assembly and the second driving assembly are both connected to the lifting assembly, and the two slide rails are symmetrically fixed on both sides of the second vertical frame.

[0009] Furthermore, the second driving assembly includes a telescopic rod, which is slidably mounted on the outer surface of the slide rail, rotatably mounted on the side of the rear baffle, and a transmission shaft is rotatably mounted on the other end of the telescopic rod.

[0010] Furthermore, the second driving assembly includes a second rack, the second rack is fixedly mounted on the side of the first slider, a support plate is fixedly mounted on the side of the right-angle rod, a first fixed shaft and a second fixed shaft are fixedly mounted on the support plate, a second gear is rotatably mounted on the outer surface of the first fixed shaft, a first gear is rotatably mounted on the outer surface of the second fixed shaft, the first gear is meshed with the second gear, the first gear is meshed with the second rack, a first rack is slidably mounted on the side of the right-angle rod, the first rack is meshed with the second gear, the first rack is fixedly connected to the front baffle, a positioning shaft is fixedly mounted on the side of the front baffle, and a circular through hole is provided on the side of the right-angle rod.

[0011] Furthermore, a fifth sliding groove is provided on the side of the second connecting rod, and a third sliding block is slidably installed on the inner wall of the fifth sliding groove, a driving shaft is rotatably installed on the side of the third sliding block, a fixed block is rotatably installed on the end of the driving shaft away from the third sliding block, a fourth sliding block is slidably installed on the lower side of the fixed block, the fourth sliding block is slidably installed on the side of the right-angle rod, a second movable plate is fixedly installed on the side of the fourth sliding block, a first movable shaft is fixedly installed on the lower side of the second movable plate, the third connecting rod is rotatably installed on the outer surface of the first movable shaft, and the second movable shaft is rotatably installed on the end of the third connecting rod away from the first movable shaft.

[0012] Furthermore, the cross-sections of the fifth sliding groove and the third sliding block are both T-shaped and have the same shape and size.

[0013] Furthermore, the height adjustment assembly includes a sliding plate, which is fixedly mounted on the telescopic end of the second electric cylinder, the second electric cylinder is fixedly mounted on the inner wall of the second vertical groove, a third vertical groove is arranged on the side of the second vertical frame, a sliding plate is slidably mounted on the inner wall of the third vertical groove, a limiting shaft and a third rack are fixedly mounted on the upper side of the sliding plate, a third gear is mounted on the outer surface of the side shaft, the third gear is meshed with the third rack, a hanging shaft is fixedly mounted on the outer surface of the side shaft, a sixth groove is arranged on the outer surface of the side shaft, and the limiting shaft is slidably mounted on the inner wall of the sixth groove.

[0014] Further, the lower portion of the third rack is not provided with a tooth profile, and the lower end surface of the tooth profile of the third rack coincides with the upper end surface of the limiting shaft.

[0015] Compared with the prior art, the present invention has the following advantages: (1) the present invention can adjust the experimental height of the drop test, thereby improving adaptability; and (2) the present invention can protect the falling point, thereby preventing the contents inside the safety net from flying out when the safety net falls. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the lifting mechanism structure of the present invention.

[0018] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0019] Figure 4 for Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.

[0020] Figure 5 It is a schematic diagram of the structure of the gathering mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of the position relationship between the front baffle and the rear baffle of the present invention.

[0022] Figure 7 for Figure 6 Schematic diagram of the partial enlarged structure at point C in the middle.

[0023] Figure 8 for Figure 6 Schematic diagram of the local enlarged structure at point D in the middle.

[0024] Fig. 9 It is a schematic diagram of the release mechanism structure of the present invention.

[0025] Fig.10 for Fig. 9 Schematic diagram of the local enlarged structure at point E in the middle.

[0026] Fig.11 for Fig. 9 Schematic diagram of the partially enlarged structure at point F in the middle.

[0027] Figure numerals: 1-front baffle; 2-lifting mechanism; 3-rear baffle; 4-gathering mechanism; 5-releasing mechanism; 201-first side panel; 202-first electric cylinder; 203-first slide; 204-first slider; 205-first connecting rod; 206-right angle rod; 207-mounting block; 208-first vertical slot; 209-first turntable; 210-second slider; 211-first vertical frame; 212-moving shaft; 213-sliding shaft; 214-second connecting rod; 215-sixth slider; 216-side shaft; 217-second turntable; 218-connecting shaft; 219-first moving plate; 220-second slide; 221-second vertical frame; 222-second vertical slot; 401-second side panel; 402-third slide; 403-fourth slide; 404-fifth slide groove; 405-third slider; 406-driving shaft; 407-first moving shaft; 408-second moving plate; 409-fourth slider; 410-fixed block; 411-second moving shaft; 412-third connecting rod; 413-slide rail; 414-positioning shaft; 415-support plate; 416-first fixed shaft; 417-second fixed shaft; 418-first gear; 419-second gear; 420-first rack; 421-second rack; 422-cantilever shaft; 423-transmission shaft; 424-telescopic rod; 425-fifth slide groove; 501-hanging shaft; 502-sixth slide groove; 503-second electric cylinder; 504-sliding plate; 505-limiting shaft; 506-third rack; 507-third gear; 508-third vertical slide groove. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further explained below in combination with and through specific implementation methods.

[0029] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0030] As attached Figure 1 ~Attached Fig.11As shown, the lifting mechanism 2 includes a first side panel 201, a first electric cylinder 202, a first slider 204, a right-angle rod 206 and a first vertical frame 211. The first side panel 201 is provided with a first slide groove 203. The first electric cylinder 202 is fixedly mounted on the lifting mechanism 20, the inner wall of the rear baffle 3, the first side panel 201 is fixedly mounted on the side of the right-angle rod 206, the second vertical frame 221 is fixedly mounted on the upper side of the right-angle rod 206, the first slider 204 is fixedly mounted on the telescopic end of the first electric cylinder 202, and the first slider 204 is slidably mounted on the inner wall of the rear baffle 3. On the inner wall of the first side panel 201, a connecting shaft 218 is fixedly installed on the first slider 204, a first connecting rod 205 is rotatably installed on the outer surface of the connecting shaft 218, a mounting block 207 is rotatably installed on the end of the first connecting rod 205 away from the connecting shaft 218, a first rotating disk 209 is fixedly installed on the side of the mounting block 207, a second slider 210 is rotatably installed on the side of the first rotating disk 209, a second rotating disk 217 is rotatably installed on the side of the second slider 210, a moving shaft 212 is fixedly installed on the side of the second rotating disk 217, and the outer surface of the moving shaft 212 A sliding shaft 213 is slidably installed on the surface, a second connecting rod 214 is fixedly installed on the side of the sliding shaft 213, a sixth sliding block 215 is rotatably installed on the side of the second connecting rod 214, a side shaft 216 is slidably installed on the side of the sixth sliding block 215, the side shaft 216 is rotatably connected to the second connecting rod 214, and the side shaft 216 is slidably connected to the movable shaft 212; a first vertical groove 208 is arranged on the side of the first vertical frame 211, and the second sliding block 210 is slidably installed on the inner wall of the first vertical groove 208. The lifting mechanism 2 also includes a second vertical frame 221, A second vertical groove 222 is arranged on the side of the second vertical frame 221, and the sixth slider 215 is slidably installed on the inner wall of the second vertical groove 222. A second slide groove 220 is arranged on the side of the right-angle rod 206, and a first movable plate 219 is slidably installed on the inner wall of the second slide groove 220. A fifth slider 425 is fixedly installed on the side of the first movable plate 219, and the fifth slider 425 is slidably installed on the inner wall of the second slide groove 220. A cantilever shaft 422 is fixedly installed on the side of the fifth slider 425, and the outer surface of the cantilever shaft 422 is rotatably connected to the second connecting rod 214.

[0031] As attached Figure 2 ~Attached Fig. 9As shown, the gathering mechanism 4 includes two slide rails 413, a second rack 421 and a telescopic rod 424. The two slide rails 413 are symmetrically fixedly installed on both sides of the second vertical frame 221, and the front baffle 1 and the rear baffle 3 are slidably installed on the outer surface of each slide rail 413; the telescopic rod 424 is slidably installed on the outer surface of the slide rail 413, and the telescopic rod 424 is rotatably installed on the side of the rear baffle 3. The other end of the telescopic rod 424 is rotatably installed with a transmission shaft 423, and the transmission shaft 423 is fixedly installed on the outer surface of the cantilever shaft 422; the second rack 421 is fixedly installed on the side of the first slider 204, and the side of the right-angle rod 206 is fixedly installed with a support plate 415, and the support plate 415 is fixedly installed A first fixed shaft 416 and a second fixed shaft 417 are installed, and a second gear 419 is rotatably installed on the outer surface of the first fixed shaft 416, and a first gear 418 is rotatably installed on the outer surface of the second fixed shaft 417. The first gear 418 is meshed with the second gear 419, and the first gear 418 is meshed with the second rack 421. A first rack 420 is slidably installed on the side of the right-angle rod 206, and the first rack 420 is meshed with the second gear 419. The first rack 420 is fixedly connected to the front baffle 1, and a positioning shaft 414 is fixedly installed on the side of the front baffle 1. A circular through hole is set on the side of the right-angle rod 206, and the circular through hole on the side of the right-angle rod 206 is coaxial with the positioning shaft 414 and has the same radius.

[0032] As attached Figure 3 ~Attached Fig.10 As shown, a fifth slide groove 404 is provided on the side of the second connecting rod 214, a third slider 405 is slidably installed on the inner wall of the fifth slide groove 404, a driving shaft 406 is rotatably installed on the side of the third slider 405, a fixed block 410 is rotatably installed on the end of the driving shaft 406 away from the third slider 405, a fourth slider 409 is slidably installed on the lower side of the fixed block 410, a second side panel 401 is fixedly installed on the side of the right-angle rod 206, a third slide groove 402 is provided on the second side panel 401, the fourth slider 409 is slidably installed on the inner wall of the third slide groove 402, and a There is a fourth slide groove 403, a second movable plate 408 is fixedly installed on the side of the fourth slider 409, the second movable plate 408 is slidably installed on the inner wall of the fourth slide groove 403, a first movable shaft 407 is fixedly installed on the lower side of the second movable plate 408, a third connecting rod 412 is rotatably installed on the outer surface of the first movable shaft 407, a second movable shaft 411 is rotatably installed on the end of the third connecting rod 412 away from the first movable shaft 407, the second movable shaft 411 is fixedly installed on the first movable plate 219, and the cross-sections of the fifth slide groove 404 and the third slider 405 are both T-shaped and the shapes and sizes are consistent.

[0033] As attached Figure 4 ~Attached Fig.11As shown, the release mechanism 5 includes a second electric cylinder 503, which is fixedly mounted on the inner wall of the second vertical groove 222, and a third vertical slide groove 508 is arranged on the side of the second vertical frame 221. A sliding plate 504 is slidably mounted on the inner wall of the third vertical slide groove 508, and the sliding plate 504 is fixedly mounted on the telescopic end of the second electric cylinder 503. A limit axis 505 and a third rack 506 are fixedly mounted on the upper side of the sliding plate 504. A third gear 507 is mounted on the outer surface of the side shaft 216, and the third gear 507 is meshed with the third rack 506. The wheel 507 is slidably connected to the side of the first vertical frame 211, and a rectangular protrusion is provided at the connection between the third gear 507 and the side shaft 216. The rectangular protrusion of the third gear 507 is slidably installed on the inner wall of the sixth slide groove 502. A hanging shaft 501 is fixedly installed on the outer surface of the side shaft 216. The outer surface of the side shaft 216 is provided with a sixth slide groove 502. The limiting shaft 505 is slidably installed on the inner wall of the sixth slide groove 502. The lower part of the third rack 506 is not provided with a tooth profile, and the lower end face of the tooth profile of the third rack 506 coincides with the upper end face of the limiting shaft 505.

[0034] The working principle of the present invention is as follows.

[0035] (i) Hang the safety net to be tested on the hanging shaft 501, and then start the second electric cylinder 503 according to the height to be tested. The second electric cylinder 503 drives the sliding plate 504 to slide along the third vertical sliding groove 508, and the sliding plate 504 drives the limit shaft 505 and the third rack 506 to move. When the height difference between the upper end surface of the limit shaft 505 and the ground is adjusted to be equal to the height to be tested, the second electric cylinder 503 stops working.

[0036] (ii) The first electric cylinder 202 is started, the first electric cylinder 202 drives the connecting shaft 218 to move through the first slider 204, the connecting shaft 218 drives the second slider 210 to slide along the inner wall of the first vertical groove 208 through the first connecting rod 205, the second slider 210 drives the sliding shaft 213 to move through the moving shaft 212, the sliding shaft 213 drives the sixth slider 215 to slide along the inner wall of the second vertical groove 222, the sliding shaft 213 drives the cantilever shaft 422 to move through the second connecting rod 214, the cantilever shaft 422 drives the first moving plate 219 to slide along the second sliding groove 222 through the fifth slider 425 0 slides, the first moving plate 219 drives the first moving shaft 407 to move through the third connecting rod 412, and the first moving shaft 407 drives the fourth slider 409 to slide along the third sliding groove 402 through the second moving plate 408, so that the first slider 204 and the fourth slider 409 move in opposite directions, the fourth slider 409 drives the driving shaft 406 to move through the fixed block 410, the driving shaft 406 drives the second connecting rod 214 to move through the third slider 405, and the second connecting rod 214 drives the side shaft 216 to slide along the moving shaft 212, thereby driving the two hanging shafts 501 to separate.

[0037] (III) When the cantilever shaft 422 moves, the telescopic rod 424 is driven to move through the transmission shaft 423, and the telescopic rod 424 drives the rear baffle 3 to slide along the outer surface of the slide rail 413. At the same time, the first slider 204 drives the second rack 421 to move, and the second rack 421 drives the second gear 419 to rotate through the first gear 418. The second gear 419 drives the front baffle 1 to slide along the slide rail 413 through the first rack 420, thereby achieving the front baffle 1 and the rear baffle 3 to move closer to each other.

[0038] (iv) As the side shaft 216 rises, the limit shaft 505 slides along the inner wall of the sixth slide groove 502, and when the sixth slide groove 502 is separated from the limit shaft 505, the third gear 507 engages with the tooth profile of the third rack 506. When the third gear 507 engages with the tooth profile of the third rack 506, the third gear 507 drives the side shaft 216 to rotate, thereby driving the hanging shaft 501 to rotate. Under the action of gravity, the safety net to be tested is separated from the hanging shaft 501, thereby completing the release process.

[0039] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. The scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention, and any reference numerals in the claims should not be considered as limiting the claims involved.

Claims

1. A release device based on a safety net fall test, comprising a front baffle (1) and a rear baffle (3), characterized in that: The release device based on the safety net falling experiment also includes a lifting mechanism (2), a gathering mechanism (4) and a releasing mechanism (5); the lifting mechanism (2) includes a first electric cylinder (202), a right-angle rod (206), a first vertical frame (211) and a lifting assembly; the first electric cylinder (202) is fixedly mounted on the side of the right-angle rod (206); the telescopic end of the first electric cylinder (202) is connected to the lifting assembly; the lifting assembly is mounted on the second vertical frame (221); and the second vertical frame (221) is fixedly mounted on the upper side of the right-angle rod (206); The gathering mechanism (4) is respectively connected to the front baffle (1) and the rear baffle (3), and the lifting assembly is connected to the gathering mechanism (4); the releasing mechanism (5) comprises a second electric cylinder (503) and a height adjustment assembly, the second electric cylinder (503) is connected to the height adjustment assembly, and the height adjustment assembly is connected to the second vertical frame (221); The lifting assembly comprises a first slider (204), the first slider (204) is fixedly mounted on the telescopic end of the first electric cylinder (202), the first slider (204) is slidably mounted on the side of the right-angle rod (206), a connecting shaft (218) is fixedly mounted on the first slider (204), a first connecting rod (205) is rotatably mounted on the outer surface of the connecting shaft (218), a mounting block (207) is rotatably mounted on one end of the first connecting rod (205) away from the connecting shaft (218), a first rotating disk (209) is fixedly mounted on the side of the mounting block (207), and a second slider (209) is rotatably mounted on the side of the first rotating disk (209). 10), a second rotating disk (217) is rotatably mounted on the side of the second slider (210), a movable shaft (212) is fixedly mounted on the side of the second rotating disk (217), a sliding shaft (213) is slidably mounted on the outer surface of the movable shaft (212), a second connecting rod (214) is fixedly mounted on the side of the sliding shaft (213), a sixth slider (215) is rotatably mounted on the side of the second connecting rod (214), a side shaft (216) is slidably mounted on the side of the sixth slider (215), the side shaft (216) is rotatably connected to the second connecting rod (214), and the side shaft (216) is slidably connected to the movable shaft (212); A first vertical groove (208) is provided on the side of the first vertical frame (211), and the second slider (210) is slidably mounted on the inner wall of the first vertical groove (208). The lifting mechanism (2) further comprises a second vertical frame (221), a second vertical groove (222) is provided on the side of the second vertical frame (221), a sixth slider (215) is slidably mounted on the inner wall of the second vertical groove (222), a second slide groove (220) is provided on the side of the right-angle rod (206), a first movable plate (219) is slidably mounted on the inner wall of the second slide groove (220), a fifth slider (425) is fixedly mounted on the side of the first movable plate (219), the fifth slider (425) is slidably mounted on the inner wall of the second slide groove (220), a cantilever shaft (422) is fixedly mounted on the side of the fifth slider (425), and the outer surface of the cantilever shaft (422) is rotatably connected to the second connecting rod (214); The gathering mechanism (4) comprises two slide rails (413), a first driving assembly and a second driving assembly, the first driving assembly is connected to the front baffle (1), the second driving assembly is connected to the rear baffle (3), the first driving assembly and the second driving assembly are both connected to the lifting assembly, and the two slide rails (413) are symmetrically fixedly mounted on both sides of the second vertical frame (221); A fifth slide groove (404) is provided on the side of the second connecting rod (214), a third slider (405) is slidably mounted on the inner wall of the fifth slide groove (404), a driving shaft (406) is rotatably mounted on the side of the third slider (405), a fixed block (410) is rotatably mounted on the end of the driving shaft (406) away from the third slider (405), a fourth slider (409) is slidably mounted on the lower side of the fixed block (410), the fourth slider (409) is slidably mounted on the side of the right-angle rod (206), a second movable plate (408) is fixedly mounted on the side of the fourth slider (409), a first movable shaft (407) is fixedly mounted on the lower side of the second movable plate (408), a third connecting rod (412) is rotatably mounted on the outer surface of the first movable shaft (407), and a second movable shaft (411) is rotatably mounted on the end of the third connecting rod (412) away from the first movable shaft (407).

2. A release device based on a safety net fall test according to claim 1, characterized in that: The second driving assembly comprises a telescopic rod (424), the telescopic rod (424) is slidably mounted on the outer surface of the slide rail (413), the telescopic rod (424) is rotatably mounted on the side of the rear baffle (3), and the other end of the telescopic rod (424) is rotatably mounted with a transmission shaft (423).

3. A release device based on a safety net fall test according to claim 1, characterized in that: The second driving component comprises a second rack (421), the second rack (421) is fixedly mounted on the side of the first slider (204), a support plate (415) is fixedly mounted on the side of the right-angle rod (206), a first fixed shaft (416) and a second fixed shaft (417) are fixedly mounted on the support plate (415), a second gear (419) is rotatably mounted on the outer surface of the first fixed shaft (416), a first gear (418) is rotatably mounted on the outer surface of the second fixed shaft (417), the first gear (418) is meshed with the second gear (419), the first gear (418) is meshed with the second rack (421), a first rack (420) is slidably mounted on the side of the right-angle rod (206), the first rack (420) is meshed with the second gear (419), the first rack (420) is fixedly connected to the front baffle (1), a positioning shaft (414) is fixedly mounted on the side of the front baffle (1), and a circular through hole is arranged on the side of the right-angle rod (206).

4. A release device based on a safety net fall test according to claim 1, characterized in that: The cross-sections of the fifth slide groove (404) and the third sliding block (405) are both T-shaped and have the same shape and size.

5. A release device based on a safety net fall test according to claim 1, characterized in that: The height adjustment assembly comprises a sliding plate (504), wherein the sliding plate (504) is fixedly mounted on the telescopic end of the second electric cylinder (503), the second electric cylinder (503) is fixedly mounted on the inner wall of the second vertical groove (222), a third vertical groove (508) is arranged on the side of the second vertical frame (221), the sliding plate (504) is slidably mounted on the inner wall of the third vertical groove (508), a limit shaft (505) and a third rack (506) are fixedly mounted on the upper side of the sliding plate (504), a third gear (507) is mounted on the outer surface of the side shaft (216), the third gear (507) is meshed with the third rack (506), a hanging shaft (501) is fixedly mounted on the outer surface of the side shaft (216), a sixth groove (502) is arranged on the outer surface of the side shaft (216), and the limit shaft (505) is slidably mounted on the inner wall of the sixth groove (502).

6. A release device based on a safety net fall test according to claim 5, characterized in that: The lower portion of the third rack (506) is not provided with a toothed profile, and the lower end surface of the toothed profile of the third rack (506) coincides with the upper end surface of the limiting shaft (505).

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