Multi-angle loading device for drag parachute lock

Abstract

The utility model discloses a multi-angle loading device for a drag parachute lock, which comprises a loading platform and a parachute cord, a parachute lock mounting rack, a test rack and a loading assembly are mounted on the loading platform, the test rack is mounted in the middle of the loading platform, the parachute lock mounting rack and the loading assembly are respectively mounted on the loading platform on two sides of the test rack, and the parachute cord is mounted on the loading platform. The parachute lock mounting rack is used for supporting a drag parachute lock to be tested, one end of the parachute cord is connected with the drag parachute lock, the other end of the parachute cord is connected with the loading assembly through the test rack, and the loading angle of the parachute cord is adjusted through the test rack. By adopting the loading device provided by the utility model, not only can test requirements of drag parachute locks of different specifications and models be met, but also loading detection under different working conditions can be realized, so that the detection efficiency is improved, the detection cost and the production cost are reduced, and the loading device is simple in overall structure, reasonable in design, convenient to assemble and suitable for popularization and application.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of aviation reliability testing device, specifically a multi-angle loading device for drag parachute lock. BACKGROUND

[0002] The drag parachute is a device for braking by air resistance of the airplane, and is used as an auxiliary device in the take-off and landing system to shorten the landing sliding distance of the airplane and prolong the service life of the landing gear, and to ensure the safety of the airplane in the landing process. The drag parachute lock system is an important system for ensuring the normal operation of the drag parachute, and a functional failure of the system in the working state will directly endanger the flight safety. In order to evaluate the reliability index of the drag parachute lock system, expose the potential failure mode and weak link, and realize the reliability growth of the system, it is necessary to carry out typical function verification test on the drag parachute lock system on the ground.

[0003] Since the parachute lock is one of the important components of the drag parachute, its performance directly affects the safe start of the drag parachute. Due to various reasons such as manufacturing, there is an error in the fatigue life cycle of the parachute lock when it is loaded or unloaded. The size of this error is one of the important performance indicators of the parachute lock. Therefore, it is necessary to test the fatigue life performance of the parachute lock. According to the development requirements of the drag parachute lock, the parachute lock needs to be loaded, and the test requirements are to apply a load to one or two parachute ropes at the same time, with a maximum load of 50 tons. At the same time, the parachute rope needs to form an angle with the horizontal plane and the median plane. By loading under multiple working conditions, one end of the parachute rope is locked with the front support rod square hole in the drag parachute lock, and the other end is connected with the actuator cylinder to apply the load.

[0004] After searching, the patent literature with the authorization announcement number CN204612912U discloses a drag parachute lock life test bench, and the patent literature with the application publication number CN118913648A discloses an airplane drag parachute lock system reliability test device. From the contents disclosed in the two patent literatures searched, a test device meeting the use requirements is provided from different angles. In order to meet the loading detection requirements under multiple working conditions, that is, to meet the loading requirements at different angles, a different upper lock mechanism is provided from the prior art to meet the use requirements. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to solve the problems in the background art, thereby providing a loading device with simple structure and convenient operation. The loading device can not only meet the test requirements of drag parachute locks of different specifications and models, but also can realize loading detection under different working conditions, thereby improving the detection efficiency and reducing the detection cost and production cost. Specifically, it is a multi-angle loading device for drag parachute lock.

[0006] The utility model provides a technical scheme for solving the above technical problem, a kind of multi-angle loading device for resistance umbrella lock, including loading platform and umbrella rope, the umbrella lock mounting rack, test stand and loading assembly are installed on the loading platform, the test stand is installed in the middle part of loading platform, the umbrella lock mounting rack and loading assembly are respectively installed on the loading platform of test stand both sides, the umbrella lock mounting rack is used to support the resistance umbrella lock to be tested, one end of the umbrella rope is connected with resistance umbrella lock, the other end is connected with loading assembly by test stand, and the loading angle of the umbrella rope is adjusted by the test stand.

[0007] Further, the utility model discloses a kind of multi-angle loading device for resistance umbrella lock, the test stand includes first bottom plate, large support, pulley, small support, groove wheel and first locking piece, the large support and small support are all fixed in first bottom plate, wherein, the large support is set in the first bottom plate near umbrella lock mounting rack side, and the small support is set in the first bottom plate near loading assembly side, a plurality of pulleys are arranged in the large support, a plurality of pulleys are installed in large support along the longitudinal direction of the large support, and groove wheel is provided in the small support, the first locking piece is provided with multiple, and a plurality of first through holes corresponding to the first locking piece are provided in the first bottom plate, the first bottom plate is detachably installed in loading platform by the cooperation of first locking piece and first through hole;One end of the umbrella rope is connected with the resistance umbrella lock installed in umbrella lock mounting rack, the other end is sequentially connected with loading assembly installed in loading platform after passing through one of pulley installed in large support and groove wheel in small support.

[0008] Further, the utility model discloses a kind of multi-angle loading device for resistance umbrella lock, the loading assembly includes second bottom plate, loading power mechanism, pressure sensor, connecting piece, joint and second locking piece, the connecting piece is provided with two, the loading power mechanism is installed in second bottom plate, the output end of the loading power mechanism is connected with one of connecting piece by pressure sensor, and the joint is connected with pressure sensor by another connecting piece;Second locking piece is provided with multiple, and a plurality of second through holes corresponding to the second locking piece are provided in the second bottom plate, the second bottom plate is detachably installed in loading platform by the cooperation of second locking piece and second through hole;The loading assembly is connected with umbrella rope by joint.

[0009] Further, the utility model discloses a kind of multi-angle loading device for resistance umbrella lock, rotatable connecting shaft is further provided in the joint, and the joint is connected with umbrella rope by connecting shaft.

[0010] Further, the utility model discloses a kind of multi-angle loading devices for resistance umbrella lock, the loading power mechanism is any one in actuating cylinder, hydraulic cylinder or electric telescopic rod, installation seat, positioning pin and transition plate are further equipped on the second bottom plate, the loading power mechanism is set in installation seat by positioning pin, the transition plate is located installation seat front, for supporting the output shaft of the loading power mechanism.

[0011] Further, the utility model discloses a kind of multi-angle loading devices for resistance umbrella lock, the pressure of the pressure sensor is according to the loading force numerical value required by test outline setting, and its maximum load does not exceed 50 tons.

[0012] Further, the utility model discloses a kind of multi-angle loading devices for resistance umbrella lock, the umbrella lock mounting bracket includes third bottom plate, support and third locking piece, the support includes four, four the support is respectively front support, rear support, left support and right support, the front support, rear support, left support and right support are respectively installed in third bottom plate, and the clamping space formed between the front support, rear support, left support and right support, the umbrella lock mounting bracket is used for supporting resistance umbrella lock to be tested by four the support;Third locking piece is equipped with multiple, and third through hole corresponding to the third locking piece is equipped in the third bottom plate, and the third bottom plate is detachably installed in loading platform by the cooperation of third locking piece and third through hole.

[0013] Further, the utility model discloses a kind of multi-angle loading devices for resistance umbrella lock, the loading platform is rectangular plate body, and multiple parallelly arranged positioning grooves are arranged in the width direction of the loading platform in the loading platform;The umbrella lock mounting bracket, test stand and loading assembly are detachably fixed in loading platform along the length direction of loading platform by positioning groove.

[0014] Further, the utility model discloses a kind of multi-angle loading devices for resistance umbrella lock, the positioning groove is set to inverted T shape structure, the first locking piece in test stand, the second locking piece in loading assembly and the third locking piece in umbrella lock mounting bracket are all composed of bolt and nut, the bolt is set in positioning groove, the first bottom plate in test stand, the second bottom plate in loading assembly and the third bottom plate in umbrella lock mounting bracket are all screwed by nut and bolt, realize the first bottom plate, second bottom plate and third bottom plate are detachably fixed in loading platform.

[0015] Further, the multi-angle loading device for resistance umbrella lock has the advantages that the umbrella lock mounting frame, the test frame and the loading assembly are detachably and slidably connected with the loading platform, after the horizontal plane and the median plane are determined, the loading angle of the test frame and the loading assembly can be conveniently adjusted, thereby meeting the testing needs of resistance umbrella locks of different specifications, the loading pressure of the loading power mechanism can be accurately determined through the pressure sensor arranged in the loading assembly, and therefore, the loading device has the advantages of meeting the testing requirements of resistance umbrella locks of different specifications and models, being capable of loading detection under different working conditions, improving the detection efficiency, reducing the detection cost and production cost, having a simple overall structure, being reasonable in design, being convenient to assemble and being suitable for popularization and application.

[0016] The multi-angle loading device for resistance umbrella lock has the advantages that the umbrella lock mounting frame, the test frame and the loading assembly are detachably and slidably connected with the loading platform, after the horizontal plane and the median plane are determined, the loading angle of the test frame and the loading assembly can be conveniently adjusted, thereby meeting the testing needs of resistance umbrella locks of different specifications, the loading pressure of the loading power mechanism can be accurately determined through the pressure sensor arranged in the loading assembly, and therefore, the loading device has the advantages of meeting the testing requirements of resistance umbrella locks of different specifications and models, being capable of loading detection under different working conditions, improving the detection efficiency, reducing the detection cost and production cost, having a simple overall structure, being reasonable in design, being convenient to assemble and being suitable for popularization and application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further explained in detail in connection with the drawings.

[0018] Figure 1 It is structural schematic diagram of the utility model embodiment one;

[0019] Figure 2 It is structural schematic diagram of umbrella lock mounting frame in the utility model;

[0020] Figure 3 It is structural schematic diagram of test frame in the utility model;

[0021] Figure 4 It is structural schematic diagram of loading assembly in the utility model;

[0022] Figure 5 It is structural schematic diagram of the utility model embodiment two.

[0023] As shown in the figure: 1 - loading platform, 11 - positioning groove, 2 - umbrella rope, 3 - umbrella lock mounting bracket, 31 - third bottom plate, 32 - support, 33 - third locking piece, 34 - third through hole, 4 - test frame, 41 - first bottom plate, 42 - large support, 43 - pulley, 44 - small support, 45 - groove wheel, 46 - first locking piece, 47 - first through hole, 5 - loading assembly, 51 - second bottom plate, 52 - loading power mechanism, 53 - pressure sensor, 54 - connecting piece, 55 - joint, 56 - second locking piece, 57 - second through hole, 58 - connecting shaft, 59 - mounting seat, 510 - positioning pin, 511 - transition plate, 6 - steel wire rope. DETAILED DESCRIPTION

[0024] The implementation of the present application will be described by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosed content.

[0025] It should be understood that the structure, proportion, size, etc. shown in the drawings of the present application are only used to understand and read the disclosed content by those skilled in the art, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the disclosed technical content. At the same time, the terms such as "upper", "lower", "left", "right" and the like used in the present application are only for clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the implementation scope of the present application.

[0026] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "provided with" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] It should be noted that the term "includes" or any other variant is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. Embodiment one

[0028] As Figures 1 to 4As shown, the embodiment provides a multi-angle loading device for resistance umbrella lock, comprising a loading platform 1 and an umbrella rope 2, the loading platform 1 is provided with an umbrella lock mounting frame 3, a test frame 4 and a loading assembly 5, the test frame 4 is installed in the middle of the loading platform 1, the umbrella lock mounting frame 3 and the loading assembly 5 are respectively installed on the loading platform 1 on both sides of the test frame 4, the umbrella lock mounting frame 3 is used for supporting the resistance umbrella lock to be tested, one end of the umbrella rope 2 is connected with the resistance umbrella lock, the other end is connected with the loading assembly 5 through the test frame 4, and the loading angle of the umbrella rope 2 is adjusted through the test frame 4.

[0029] The umbrella lock mounting frame 3 comprises a third bottom plate 31, a support 32 and a third locking piece 33, the support 32 comprises four, the four supports 32 are respectively front support, rear support, left support and right support, the front support, rear support, left support and right support are respectively installed in the third bottom plate 31, and a clamping space is formed between the front support, rear support, left support and right support, the umbrella lock mounting frame 3 is used for supporting the resistance umbrella lock to be tested through the four supports 32; the third locking piece 33 is provided with a plurality of third locking pieces 33, and a plurality of third through holes 34 corresponding to the third locking piece 33 are arranged in the third bottom plate 31, and the third bottom plate 31 is detachably installed in the loading platform 1 through the cooperation of the third locking piece 33 and the third through hole 34.

[0030] The test frame 4 comprises a first bottom plate 41, a large bracket 42, a pulley 43, a small bracket 44, a groove wheel 45 and a first locking piece 46, the large bracket 42 and the small bracket 44 are fixed in the first bottom plate 41, wherein the large bracket 42 is arranged in the first bottom plate 41 close to the umbrella lock mounting frame 3, and the small bracket 44 is arranged in the first bottom plate 41 close to the loading assembly 5, a plurality of parallel pulleys 43 are arranged in the large bracket 42, and the plurality of pulleys 43 are installed in the large bracket 42 along the longitudinal direction of the large bracket 42, the groove wheel 45 is arranged in the small bracket 44, a plurality of first locking pieces 46 are arranged in the first bottom plate 41, and a plurality of first through holes 47 corresponding to the first locking piece are arranged in the first bottom plate 41, and the first bottom plate 41 is detachably installed in the loading platform 1 through the cooperation of the first locking piece 46 and the first through hole 47; one end of the umbrella rope 2 is connected with the resistance umbrella lock installed in the umbrella lock mounting frame 3, the other end is sequentially connected with the loading assembly 5 installed in the loading platform 1 through one of the pulleys 43 installed in the large bracket 42 and the groove wheel 45 installed in the small bracket 44.

[0031] The loading assembly 5 comprises a second bottom plate 51, a loading power mechanism 52, a pressure sensor 53, two connecting members 54, a joint 55 and a plurality of second locking members 56, the loading power mechanism 52 is installed in the second bottom plate 51, the output end of the loading power mechanism 52 is connected with one of the connecting members 54 through the pressure sensor 53, the joint 55 is connected with the pressure sensor 53 through the other connecting member 54, the second locking members 56 are provided in plurality, a plurality of second through holes 57 corresponding to the second locking members 56 are arranged in the second bottom plate 51, and the second bottom plate 51 is detachably installed in the loading platform 1 through cooperation of the second locking members 56 and the second through holes 57, and the loading assembly 5 is connected with the umbrella rope 2 through the joint 55.

[0032] Further, in order to conveniently connect the umbrella rope 2 with the loading assembly 5, the joint 55 is further provided with a rotatable connecting shaft 58, and the joint 55 is connected with the umbrella rope 2 through the connecting shaft 58.

[0033] Further, the loading power mechanism 52 is any one of an actuating cylinder, a hydraulic cylinder or an electric telescopic rod, and the second bottom plate 51 is further provided with a mounting seat 59, a positioning pin 510 and a transition plate 511, the loading power mechanism 52 is arranged in the mounting seat 59 through the positioning pin 510, and the transition plate 511 is located in front of the mounting seat 59 and used for supporting an output shaft of the loading power mechanism 52.

[0034] Further, in order to conveniently install the umbrella lock mounting rack 3, the test rack 4 and the loading assembly 5 in the loading platform 1 and simultaneously conveniently adjust the installation positions of the mounting rack 3, the test rack 4 and the loading assembly 5, the loading platform 1 is provided as a rectangular plate structure, a plurality of parallel positioning grooves 11 are arranged in the loading platform 1 along the width direction of the loading platform 1, and the positioning grooves 11 are provided as inverted T-shaped structures, and the umbrella lock mounting rack 3, the test rack 4 and the loading assembly 5 are detachably fixed in the loading platform 1 along the length direction of the loading platform 1 through the positioning grooves 11.

[0035] To achieve a sliding and detachable connection, the first locking member 46 in the test frame 4, the second locking member 56 in the loading assembly 5, and the third locking member 33 in the umbrella lock mounting bracket 3 are all composed of bolts and nuts. The bolts are set in the positioning groove 11. The first base plate 41 in the test frame 4, the second base plate 51 in the loading assembly 5, and the third base plate 31 in the umbrella lock mounting bracket 3 are all screwed together with nuts and bolts, so that the first base plate 41, the second base plate 51, and the third base plate 31 can be detachably fixed in the loading platform 1.

[0036] The multi-angle loading device for a resistance umbrella lock described in this embodiment is used to conduct a loading test using a single parachute rope 2. Before use, the center plane of the loading device after installation is adjusted using a steel wire rope 6 based on the center line and horizontal plane of the loading platform 1. The central plane is the longitudinal center line of the test frame 4. Once the horizontal plane and the central plane are determined, the resistance umbrella lock to be tested can be subjected to a loading test. In the specific test process, the parachute rope 2 is inserted into the square hole of the front support rod of the resistance umbrella lock and locked. The other end is connected to the loading component 5 after passing through multiple parallel pulleys 43 in the test frame 4. By using the parachute rope 2 to pass through different pulleys 43, the required angles of the horizontal plane and the central plane are ensured for each working condition. Since the other end of the parachute rope is connected to the loading power mechanism 52, the loading power mechanism 52 applies a load to the parachute rope, thereby opening the lock hook in the resistance umbrella lock and throwing out the parachute rope 2. This completes the test. The magnitude of the loading pressure can be determined by the pressure sensor 53 in the loading component 5. Example 2

[0037] like Figure 5 As shown, this embodiment is based on embodiment one. In order to meet the requirement of testing the loading of two paracords 2 from different angles, a multi-angle loading device for resistance paracords provided in this embodiment is adopted. There is one paracord mounting frame 3, and five test frames 4 and five loading components 5. The paracord mounting frame 3 is set along the length direction of the loading platform 1 on the center line of the loading platform 1. One of the five test frames 4 and one of the five loading components 5 are respectively set along the length direction of the loading platform 1 on the center line of the loading platform 1. The other four test frames 4 and the other four loading components 5 are arranged radially on both sides of the center line of the loading platform 1 with the paracord mounting frame 3 as the center, and are arranged symmetrically in the loading platform 1. The five test frames 4 and the five loading components 5 are used to adjust the loading angle of the paracords 2.

[0038] The loading device provided in the embodiment is used to carry out loading test by two umbrella ropes 2 through five test frames 4 and five loading assemblies 5, so that the loading test requirements of different angles can be met, and the specific operation method is the same as that in the first embodiment.

[0039] The multi-angle loading device for resistance umbrella lock has the advantages that a plurality of positioning grooves 11 are arranged in the loading platform 1 along the width direction, the umbrella lock mounting rack 3, the test frame 4 and the loading assembly 5 are detachably and slidably connected and fixed to the loading platform 1, the loading angle of the test frame 4 and the loading assembly 5 can be conveniently adjusted after the horizontal plane and the median plane are determined, and therefore the testing requirements of resistance umbrella locks of different specifications can be met.

[0040] In summary, the loading device has the advantages that the testing requirements of resistance umbrella locks of different specifications can be met, loading detection can be carried out under different working conditions, the detection efficiency is improved, the detection cost and the production cost are reduced, the overall structure is simple, the design is reasonable, assembly is convenient, and the loading device is suitable for popularization and application.

[0041] Other details of the utility model are conventional technologies known by those skilled in the art.

[0042] The preferred embodiments of the utility model are described above, and the utility model is not limited to the embodiments, and various modifications and changes can be made by those skilled in the art, and any modification, equivalent replacement, improvement and the like made by using the utility model should be included in the protection scope of the utility model.

Claims

1. A multi-angle loading device for a drag parachute lock, comprising a loading platform (1) and a parachute cable (2), characterized in that: The loading platform (1) is provided with an umbrella lock mounting rack (3), a test rack (4) and a loading assembly (5). The test rack (4) is mounted in the middle of the loading platform (1), and the umbrella lock mounting rack (3) and the loading assembly (5) are mounted on the loading platform (1) on both sides of the test rack (4). The umbrella lock mounting rack (3) is used for supporting the resistance umbrella lock to be tested. One end of the umbrella rope (2) is connected with the resistance umbrella lock, and the other end is connected with the loading assembly (5) through the test rack (4), and the loading angle of the umbrella rope (2) is adjusted through the test rack (4).

2. A multi-angle loading device for a drag parachute lock according to claim 1, characterized in that: The test rack (4) comprises a first bottom plate (41), a large support (42), a pulley (43), a small support (44), a groove wheel (45) and a first locking piece (46). The large support (42) and the small support (44) are both fixed in the first bottom plate (41). The large support (42) is arranged in the first bottom plate (41) near the umbrella lock mounting rack (3), and the small support (44) is arranged in the first bottom plate (41) near the loading assembly (5). A plurality of parallel pulleys (43) are arranged in the large support (42), and the plurality of pulleys (43) are arranged in the large support (42) along the longitudinal direction of the large support (42). The groove wheel (45) is arranged in the small support (44). The first locking piece (46) is provided with a plurality of first through holes (47) corresponding to the first locking piece (46) in the first bottom plate (41). The first bottom plate (41) is detachably mounted in the loading platform (1) through the cooperation of the first locking piece (46) and the first through hole (47). One end of the umbrella rope (2) is connected with the resistance umbrella lock mounted on the umbrella lock mounting rack (3), and the other end is sequentially connected with the loading assembly (5) mounted in the loading platform (1) through one of the pulleys (43) mounted in the large support (42) and the groove wheel (45) mounted in the small support (44).

3. A multi-angle loading device for a drag parachute lock according to claim 2, characterized in that: The loading assembly (5) comprises a second bottom plate (51), a loading power mechanism (52), a pressure sensor (53), a connecting piece (54), a joint (55) and a second locking piece (56). The connecting piece (54) is provided with two. The loading power mechanism (52) is mounted in the second bottom plate (51). The output end of the loading power mechanism (52) is connected with one of the connecting pieces (54) through the pressure sensor (53). The joint (55) is connected with the pressure sensor (53) through the other connecting piece (54). The second locking piece (56) is provided with a plurality of second through holes (57) corresponding to the second locking piece (56) in the second bottom plate (51). The second bottom plate (51) is detachably mounted in the loading platform (1) through the cooperation of the second locking piece (56) and the second through hole (57). The loading assembly (5) is connected with the umbrella rope (2) through the joint (55).

4. A multi-angle loading device for a drag parachute lock according to claim 3, characterized in that: A rotatable connecting shaft (58) is arranged in the joint (55), and the joint (55) is connected with the umbrella rope (2) through the connecting shaft (58).

5. A multi-angle loading device for a drag parachute lock according to claim 3, characterized in that: The loading power mechanism (52) is any one of an actuator, a hydraulic cylinder or an electric telescopic rod, and a mounting seat (59), a positioning pin (510) and a transition plate (511) are further arranged on the second bottom plate (51), the loading power mechanism (52) is arranged in the mounting seat (59) through the positioning pin (510), and the transition plate (511) is located in front of the mounting seat (59) and used for supporting an output shaft of the loading power mechanism (52).

6. A multi-angle loading device for a drag parachute lock according to claim 3, characterized in that: The pressure of the pressure sensor (53) is set according to the loading force value required by the test outline, and the maximum load is not more than 50 tons.

7. A multi-angle loading device for a drag parachute lock according to claim 2, characterized in that: The umbrella lock mounting rack (3) comprises a third bottom plate (31), a support (32) and a third locking piece (33), the support (32) comprises four supports, the four supports are respectively a front support, a rear support, a left support and a right support, the front support, the rear support, the left support and the right support are respectively arranged in the third bottom plate (31), and a clamping space is formed between the front support, the rear support, the left support and the right support, the umbrella lock mounting rack (3) is used for supporting the resistance umbrella lock to be tested through the four supports (32); a plurality of third locking pieces (33) are arranged, a plurality of third through holes (34) corresponding to the third locking pieces (33) are arranged in the third bottom plate (31), and the third bottom plate (31) is detachably arranged in the loading platform (1) through cooperation of the third locking pieces (33) and the third through holes (34).

8. A multi-angle loading device for a drag parachute lock according to any one of claims 1 to 7, characterized in that: The loading platform (1) is a rectangular plate body, a plurality of parallel positioning grooves (11) are arranged in the loading platform (1) along the width direction of the loading platform (1), and the umbrella lock mounting rack (3), the test rack (4) and the loading assembly (5) are detachably fixed in the loading platform (1) along the length direction of the loading platform (1) through the positioning grooves (11).

9. A multi-angle loading device for a drag parachute lock according to claim 8, characterized in that: The positioning groove (11) is arranged in an inverted T-shaped structure, the first locking piece (46) in the test rack (4), the second locking piece (56) in the loading assembly (5) and the third locking piece (33) in the umbrella lock mounting rack (3) are all composed of a bolt and a nut, the bolt is arranged in the positioning groove (11), and the first bottom plate (41) in the test rack (4), the second bottom plate (51) in the loading assembly (5) and the third bottom plate (31) in the umbrella lock mounting rack (3) are all screwed with the bolt through the nut, so that the first bottom plate (41), the second bottom plate (51) and the third bottom plate (31) are detachably fixed in the loading platform (1).

10. A multi-angle loading device for a drag parachute lock according to claim 9, characterized in that: The umbrella lock mounting frame (3) is provided with one, and the test frame (4) and the loading assembly (5) are respectively provided with five, wherein the umbrella lock mounting frame (3) is arranged on the center line of the loading platform (1) along the length direction of the loading platform (1), one of the five test frames (4) and one of the five loading assemblies (5) are respectively arranged on the center line of the loading platform (1) along the length direction of the loading platform (1), and the other four test frames (4) and the other four loading assemblies (5) are respectively arranged on both sides of the center line of the loading platform (1) in a radial manner with the umbrella lock mounting frame (3) as the center and arranged in the loading platform (1) in a symmetrical state, and the five test frames (4) and the five loading assemblies (5) are used for adjusting the loading angle of the umbrella rope (2).

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