Anti-bounce load module and acceleration device test system

Abstract

The application discloses an anti-rebound load module and an acceleration device test system, wherein the anti-rebound load module comprises a base, a separation mechanism and a load mechanism which are respectively mounted on the base; the separation mechanism is used for being connected with a driving end of an acceleration device and being separated from the driving end when the driving end moves to a certain stroke; the load mechanism comprises a guide column and a load assembly which is sleeved on the guide column; a first end of the guide column is connected with the base; a limiting platform is arranged at a second end of the guide column; an activity space of the load assembly is formed between the base and the limiting platform; a thickness of the load assembly along a length direction of the guide column is smaller than a height of the activity space; and the load assembly is used for moving on the guide column in an opposite direction of a rebounding force when the rebounding force is generated on the base, so as to offset the rebounding force. The anti-rebound load module provided by the application can eliminate the rebounding force by using the internal collision of the load itself, and can be applied to the anti-rebound demand of a large-mass and high-speed test piece.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of impact test, in particular, relates to a kind of anti-rebound load module and the acceleration device test system using the anti-rebound load module. BACKGROUND

[0002] At present, in order to examine the safety of maglev train under the condition of collision, the most direct way is to accelerate the sample to the specified speed by acceleration device, and then to carry out frontal collision on the train in static state, wherein the mass of the sample is 100kg-800kg, and the highest speed is 200km / h.

[0003] In order to ensure that the acceleration device can meet the collision test conditions of maglev train, it is necessary to test the acceleration performance of the acceleration device first, and since the test operation has relatively high requirements on the mass and speed of the sample, if the sample is directly used for testing, the sample will be hit by the acceleration device and rebound out at high speed, which will seriously endanger the safety of surrounding equipment and personnel, therefore, a special load module needs to be designed to replace the sample for acceleration test, and the load module needs to have anti-rebound function to avoid rebounding out after high-speed impact.

[0004] However, the anti-rebound design of the existing load module mainly uses springs, rubbers and other buffer components to absorb the impact energy, so as to prevent the test object from rebounding, and such method has low energy absorption efficiency and will be damaged after strong impact, which cannot be applied to the anti-rebound requirements of large mass and high-speed test objects. In addition, another anti-rebound design is to use hydraulic buffer technology, which can be applied to large energy buffer and anti-rebound effect, but its structure is complex and the cost is high, and the buffer speed of the hydraulic buffer device is generally not more than 6m / s, which cannot meet the high-speed impact requirement of 200km / h of the collision test of maglev train. SUMMARY

[0005] The present application primarily provides an anti-rebound load module to solve the technical problem that the anti-rebound design of the existing load module cannot be applied to the anti-rebound requirements of large mass and high-speed test objects.

[0006] The present application also provides an acceleration device test system using the above anti-rebound load module.

[0007] According to one aspect of the present application, an anti-rebound load module is provided for being hit by an acceleration device and impacting the ground to test the acceleration performance of the acceleration device, the anti-rebound load module comprising a base, and a disengagement mechanism and a load mechanism mounted on the base respectively;

[0008] The disengagement mechanism is used to connect with the driving end of the acceleration device and disengage from the driving end when the driving end moves to a certain stroke.

[0009] The load mechanism comprises a guide column and a load assembly sleeved on the guide column, a first end of the guide column is connected with the base, a second end of the guide column is provided with a limiting platform, an active space of the load assembly is formed between the base and the limiting platform, a thickness of the load assembly along a length direction of the guide column is less than a height of the active space, and the load assembly is used to move on the guide column in an opposite direction of a rebounding action force generated by the base to offset the rebounding action force.

[0010] Preferably, the load assembly comprises a plurality of load discs, a center position of each load disc is provided with a guide hole matched with the guide column, and the plurality of load discs are sequentially and layerwisely sleeved on the guide column through the guide holes.

[0011] Preferably, the limiting platform is integrally formed with the guide column, a threaded hole is formed on the base, and a first screw rod is provided at the first end of the guide column and is threadedly connected with the threaded hole.

[0012] Preferably, the load mechanism further comprises an adjusting nut, a second screw rod is provided at the second end of the guide column, the adjusting nut is threadedly connected with the second screw rod and constitutes the limiting platform, and the adjusting nut is used to axially move relative to the second screw rod through thread cooperation to adjust the height of the active space.

[0013] Preferably, the disengagement mechanism is arranged at a center position of the base, and a plurality of load mechanisms are arranged in a circular array with the disengagement mechanism as a center point.

[0014] Preferably, the disengagement mechanism comprises a connecting seat and a locking assembly arranged on the connecting seat, the connecting seat is connected with the base and is provided with a connecting hole, the connecting hole is used to insert a driving end of the acceleration device, the locking assembly comprises a locking tongue and a limiting pin, the locking tongue is rotatably mounted on a side wall of the connecting hole and is used to abut against a limiting step prearranged on the driving end, and the limiting pin is used to be inserted on the connecting seat and limit rotation of the locking tongue.

[0015] The limiting pin is connected with a fixed end of the acceleration device through a rope and is driven by the rope to disengage from the connecting seat when the driving end of the acceleration device moves to a certain stroke, so as to release the limiting action on the locking tongue, and the locking tongue is further used to rotate by the driving end of the acceleration device after the limiting is released and release the limiting action on the limiting step.

[0016] Preferably, a mounting slot is formed through the connecting seat along the radial direction of the connecting hole on the side wall of the connecting hole, an end surface of the connecting seat is formed with a pin hole extending into the mounting slot along the axial direction of the connecting hole, and the lock tongue is rotatably mounted in the mounting slot, and the limiting pin is used for being inserted into the pin hole.

[0017] The lock tongue comprises a first limiting portion and a second limiting portion arranged at an included angle along the rotation direction of the lock tongue, the first limiting portion is used for abutting against a preset limiting step on the driving end, the second limiting portion is used for being abutted and limited by the limiting pin when the first limiting portion abuts against the limiting step, and the second limiting portion is further used for being driven to rotate to protrude outward of the mounting slot after the first limiting portion rotates away from the limiting step.

[0018] Preferably, a plurality of lock assemblies are arranged at equal intervals along the circumferential direction of the connecting hole.

[0019] Preferably, the disengaging mechanism and the load mechanism are both mounted on the same surface of the base, and the anti-rebound load module further comprises an elastic buffer layer arranged on the surface of the base away from the disengaging mechanism.

[0020] As a second aspect, the application further provides an acceleration device test system, which comprises an acceleration device, a detection device, and the anti-rebound load module, the anti-rebound load module is connected with the acceleration device and is used for being hit on the ground by the acceleration device, and the detection device is used for detecting the speed of the anti-rebound load module to test the acceleration performance of the acceleration device.

[0021] The application has the following beneficial effects:

[0022] The anti-rebound load module provided by the present invention is connected to the driving end of the acceleration device through a disengagement mechanism and can automatically disengage from the driving end when the driving end accelerates and moves to a certain stroke, so that the anti-rebound load module is quickly knocked out and hits the ground. Since the load mechanism forms an activity space for the load component through the mutual limiting action of the limit platform on the guide column and the base, the load component can move freely along the length direction of the guide column in the activity space. When the anti-rebound load module is driven to accelerate toward the ground, the load component will be moved to the end of the activity space away from the ground under the action of inertia. When the base hits the ground and begins to rebound upward, the load component can be moved to the end of the activity space facing the ground under the action of inertia, thereby hindering the overall rebound trend of the anti-rebound load module. At the same time, after the load component collides with the base, it will rebound upward along the guide column, move upward to the top of the activity space, and then rebound downward again. The overall kinetic energy of the anti-rebound load module is gradually dissipated through multiple repeated collisions between the load component and the base, thereby greatly weakening the rebound movement and using its own load to eliminate the rebound force. The anti-rebound load module can be applied to the anti-rebound requirements of large-mass, high-speed moving test pieces.

[0023] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 A three-dimensional diagram of an anti-rebound load module provided in an embodiment of the present invention;

[0026] Figure 2 for Figure 1 A cross-sectional structural diagram of the load mechanism in the anti-rebound load module shown;

[0027] Figure 3 for Figure 1 The assembly structure diagram of the anti-rebound load module and the acceleration device shown;

[0028] Figure 4 for Figure 3 The diagram of the changing state of the anti-rebound load module shown shows the state where the limit pin is separated from the connecting seat;

[0029] Figure 5 for Figure 4 The state diagram of the anti-rebound load module shown shows the state of disengagement of the relative acceleration device.

[0030] Legend:

[0031] 1000, anti-rebound load module; 1, base; 11, threaded hole; 2, disengagement mechanism; 21, connecting seat; 211, connecting hole; 212, mounting groove; 213, pin hole; 22, locking assembly; 221, locking tongue; 2211, first limiting portion; 2212, second limiting portion; 222, limiting pin; 223, rope; 3, load mechanism; 31, guide column; 311, limiting platform; 312, first screw; 32, load assembly; 321, load disc; 4, elastic buffer layer;

[0032] 2000, acceleration device; 2001, driving end; 2002, limiting step. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below with reference to the accompanying drawings, but the present application can be implemented in various different ways as defined and covered by the following description.

[0034] Figures 1 to 5 The anti-rebound load module and the acceleration device test system provided by the embodiments of the present application are shown together, wherein the anti-rebound load module is used to be installed on the acceleration device and to be hit on the ground by the acceleration device to test the acceleration performance of the acceleration device, the anti-rebound load module has a better anti-rebound function, can eliminate the rebound force by using its own load, and can be applied to the anti-rebound requirement of a large mass and high-speed motion collision test piece.

[0035] As shown in Figure 1 The anti-rebound load module 1000 includes a base 1, a disengagement mechanism 2 and a load mechanism 3, the base 1 adopts a plate-shaped structure, and the opposite two surfaces thereof are respectively provided as a collision surface and a mounting surface, the collision surface is used to hit the ground, and the disengagement mechanism 2 and the load mechanism 3 are both installed on the mounting surface, that is, the disengagement mechanism 2 and the load mechanism 3 do not contact the ground during the test.

[0036] Further, the disengagement mechanism 2 is used to be connected with the driving end 2001 of the acceleration device 2000 and to be disengaged from the driving end 2001 when the driving end 2001 accelerates to move to a certain stroke, so that the anti-rebound load module 1000 can be driven by the driving end 2001 of the acceleration device 2000 to accelerate to a certain speed and then quickly disengage from the driving end 2001, so that the anti-rebound load module 1000 can fly out at a large mass and high-speed motion state meeting the test requirement and hit the ground.

[0037] As shown in Figure 2As shown, the load mechanism 3 includes a guide column 31 and a load component 32 mounted on the guide column 31. The first end of the guide column 31 is connected to the base 1, and the second end of the guide column 31 is provided with a limiting platform 311. A movable space for the load component 32 is formed between the base 1 and the limiting platform 311. The thickness of the load component 32 along the length direction of the guide column 31 is less than the height of the movable space, so that the load component 32 can move up and down along the guide column 31 in the movable space. The load component 32 is used to move on the guide column 31 in the opposite direction of the rebound force when the base 1 generates a rebound force, thereby offsetting the rebound force.

[0038] Please combine Figures 3 to 5 Specifically, the anti-rebound load module 1000 is connected to the driving end 2001 of the acceleration device 2000 through the disengagement mechanism 2 and can automatically disengage from the driving end 2001 when the driving end 2001 accelerates and moves to a certain stroke, so that the anti-rebound load module 1000 is quickly knocked out and hits the ground. Since the load mechanism 3 forms an activity space for the load component 32 through the mutual limiting effect of the limiting platform 311 on the guide column 31 and the base 1, the load component 32 can move freely in the activity space along the length direction of the guide column 1. In the process of the anti-rebound load module 1000 being driven to accelerate and fly toward the ground, the load component 32 will be moved to the activity space by inertia. At the end of the activity space away from the ground, when the base 1 hits the ground and starts to rebound upward, the load component 32 can be moved to the end of the activity space facing the ground by inertia and hit the base 1, thereby hindering the overall rebound trend of the anti-rebound load module 1000. At the same time, after the load component 32 collides with the base 1, it will rebound upward along the guide column 31, move upward to the top of the activity space, and then rebound downward again. The overall kinetic energy of the anti-rebound load module 1000 is gradually dissipated through multiple repeated collisions between the load component 32 and the base 1, which can greatly weaken the rebound motion and use its own load to eliminate the rebound force. It can be suitable for the anti-rebound requirements of large-mass, high-speed moving test pieces.

[0039] like Figure 2As shown, the load assembly 32 includes a plurality of load discs 321. A guide hole adapted for the guide post 31 is defined at the center of each load disc 321. The plurality of load discs 321 are stacked and sleeved onto the guide post 31 in sequence through the guide hole. Since the load assembly 32 is formed by combining a plurality of load discs 321, not only can the specific number of load discs 321 be flexibly increased or decreased according to the quality requirements of the collision test, thereby adjusting the overall quality of the anti-rebound load module 1000, but more importantly, when the anti-rebound load module 1000 as a whole shows a tendency to rebound, kinetic energy can be dissipated through the mutual collision between two adjacent load discs 321. The reciprocating collision between the plurality of load discs 321 can quickly dissipate the overall rebound force, resulting in a better anti-rebound effect.

[0040] Preferably, the limiting platform 311 is integrally formed with the guide post 31. A threaded hole 11 is defined in the base 1, and a first screw 312 is provided at the first end of the guide post 31, which is threadably connected to the threaded hole 11. Because the limiting platform 311 and the guide post 31 are integrally formed, the first end of the guide post 31 is threadedly connected to the threaded hole 11 by sequentially passing the first end of the guide post 31 through a plurality of load discs 321. This allows for simultaneous locking and limiting of both ends of the load assembly 32, resulting in a simple and efficient assembly structure that facilitates quick assembly and disassembly.

[0041] In other embodiments, the limiting platform 311 may also be designed to be separate from the guide column 31. Specifically, the load mechanism 3 further includes an adjusting nut. A second screw is provided at the second end of the guide column 31. The adjusting nut is threadedly connected to the second screw to form the limiting platform 311. The adjusting nut is used to move axially relative to the second screw through threaded engagement to adjust the height of the movable space. That is, the movable stroke of the load component 32 is limited by the adjusting nut. When the weight of the load component 32 is reduced according to mass requirements, resulting in a decrease in thickness of the load component 32, the axial position of the adjusting nut can be appropriately adjusted to reduce the height of the movable space, thereby controlling the movable stroke of the load component 32 within a reasonable range and preventing the movable stroke of the load component 32 from being too large and affecting the anti-rebound effect. Similarly, when the weight of the load component 32 is increased according to mass requirements, resulting in a increase in thickness of the load component 32, the axial position of the adjusting nut can also be appropriately adjusted to expand the height of the movable space, thereby controlling the movable stroke of the load component 32 within a reasonable range.

[0042] like Figure 1As shown, the disengagement mechanism 2 is provided at the center of the base 1, and a plurality of the loading mechanisms 3 are provided, and the plurality of loading mechanisms 3 are arranged in a circular array with the disengagement mechanism 2 as the center point, that is, the plurality of loading mechanisms 3 are evenly distributed around the disengagement mechanism 2, so that the weight around the disengagement mechanism 2 is even. After the disengagement mechanism 2 is separated from the driving end 2001 of the acceleration device 2000, the anti-rebound load module 1000 as a whole can stably fly out in the vertical direction and hit the ground. The impact force is borne by the surface of the base 1 with a larger area, and the impact force is dispersed to avoid excessive concentration of force to produce a greater rebound tendency or even damage. At the same time, it can also prevent the base 1 from tilting and affecting the flight trajectory and flight speed, thereby ensuring the accuracy of the test results.

[0043] Please combine Figure 1 and Figure 3 The disengagement mechanism 2 includes a connecting seat 21 and a locking assembly 22 provided on the connecting seat 21. The connecting seat 21 is connected to the base 1 and is provided with a connecting hole 211. The connecting hole 211 is used to plug in the driving end 2001 of the acceleration device 2000. The locking assembly 22 includes a locking tongue 221 and a limiting pin 222. The locking tongue 221 is rotatably mounted on the side wall of the connecting hole 211 and is used to abut against the preset limiting step 2002 on the driving end 2001. The limiting pin 222 is used to be plugged into the connecting seat 21 and limit the rotation of the locking tongue 222.

[0044] Please combine Figure 4 and Figure 5 The limit pin 222 is used to be connected to the fixed end (not shown in the figure, the same below) of the acceleration device 2000 through a rope 223 and is driven by the rope 223 to separate from the connecting seat 21 when the driving end 2001 of the acceleration device 2000 accelerates and moves to a certain stroke, thereby releasing the limiting effect on the lock tongue 221. The lock tongue 221 is also used to be driven by the driving end 2001 of the acceleration device 2000 to rotate and release the limiting effect on the limiting step 2002 after the limit is released.

[0045] Specifically, Figure 4 and Figure 5The arrow indicates the moving direction of the anti-rebound load module 1000. Since the limit pin 222 is connected and fixed by a rope 223, after the driving end 2001 of the acceleration device 2000 accelerates and moves to a certain stroke, the rope 223 can be used to pull out the limit pin 222. At this time, the limiting effect on the lock tongue 221 is released, and the lock tongue 221 can rotate freely. Since the rebound load module 1000 will continue to move downward at high speed, the lock tongue 221 can be driven by the limiting step 2002 to rotate to a state avoiding the limiting step 2002, thereby releasing the limiting effect on the limiting step 2002. At this time, the anti-rebound load module 1000 can completely break away from the driving end 2001 and automatically fly downward to complete the test operation. The disengagement mechanism 2 has a simple, efficient and stable structure. It can not only stably lock the driving end 2001 in a locked state, but also automatically disengage from the driving end 2001 in an accelerated moving state. There will be no disengagement failure causing damage to the equipment. It can also be reused and is quick and easy to operate.

[0046] Preferably, a mounting groove 212 is provided on the side wall of the connecting hole 211 and passes through the connecting seat 21 along the radial direction of the connecting hole 211. A pin hole 213 is provided on the end face of the connecting seat 21 along the axial direction of the connecting hole 211 and extends into the mounting groove 212. The locking tongue 221 is rotatably installed in the mounting groove 212, and the limiting pin 222 is used to be inserted into the pin hole 213.

[0047] Furthermore, the locking tongue 221 includes a first limiting portion 2211 and a second limiting portion 2212 arranged at an angle along its rotation direction, the first limiting portion 2211 being used to abut against a limiting step 2002 preset on the driving end 2001, the second limiting portion 2212 being used to be abutted and limited by the limiting pin 222 when the first limiting portion 2211 abuts against the limiting step 2002, and the second limiting portion 2212 is also used to be driven to rotate to protrude from the outside of the mounting groove 212 after the first limiting portion 2211 rotates out of the limiting step 2002. Specifically, when the first limiting portion 2211 abuts against the limiting step 2002, the second limiting portion 2212 is in a state of facing the limiting pin 222, and can be abutted against the side wall by the limiting pin 222 to limit the rotation of the second limiting portion 2212, thereby limiting the rotation of the first limiting portion 2211, so that the first limiting portion 2211 stably locks the limiting step 2002; and after the limiting pin 222 is pulled out, the first limiting portion 2211 can be driven by the limiting step 2002 to rotate upward, and at this time the second limiting portion 2212 is facing the securing pin 222. The outer side of the mounting groove 212 is rotated, and after the first limiting portion 2211 is completely separated from the limiting step 2002, the second limiting portion 2212 protrudes from the outer side of the mounting groove 212 (away from the side of the connecting hole 211). When performing the next test operation, after the driving end 2001 is fully inserted into the connecting hole 211, the second limiting portion 2212 can be manually pushed from the outer side of the mounting groove 212 to rotate to achieve the locking limit of the driving end 2001 by the locking tongue 221, without the need for special tools for locking, which is conducive to improving the convenience of operation.

[0048] Preferably, the locking assemblies 22 are provided in plurality, and the plurality of locking assemblies 22 are arranged equidistantly along the circumference of the connecting hole 211. In the present embodiment, the locking assemblies 22 are provided in two, and the two locking assemblies 22 are symmetrically arranged on opposite sides of the connecting hole 211, so as to respectively lock and limit the opposite sides of the driving end 2001, and apply force evenly to ensure the locking effect. In other embodiments, the number of the locking assemblies 22 can also be adjusted according to the specific size of the disengagement mechanism 2 and the mass requirement of the load assembly 32. For example, when the connecting hole 211 is large or the mass of the load assembly 32 is large, three or more locking assemblies 22 can be arranged along the circumference of the connecting hole 211. More locking assemblies 22 are used to simultaneously lock and limit, thereby ensuring the connection strength and stability.

[0049] Furthermore, the connecting seat 21 is detachably mounted on the base 1 by means of bolts, so that connecting seats 21 of different specifications can be replaced to adapt to driving ends of different acceleration devices, thereby improving applicability.

[0050] As shown in Figure 1 The disengaging mechanism 2 and the load mechanism 3 are both mounted on the same face of the base 1, and the anti-rebound load module 1000 further comprises an elastic buffer layer 4 arranged on the face of the base 1 away from the disengaging mechanism 2. The elastic buffer layer 4 can be made of elastic buffer materials such as rubber and silica gel, and the anti-rebound load module 1000 as a whole is protected by the elastic buffer layer 4 when it hits the ground, so as to avoid damage caused by rigid collision. In addition, the elastic buffer layer 4 can further reduce the elastic force and improve the anti-rebound effect.

[0051] As a second aspect, the present application further provides an acceleration device test system, which comprises an acceleration device 2000 and a detection device (not shown in the figure, the same below), and the anti-rebound load module 1000 described above. The anti-rebound load module 1000 is connected with the acceleration device 2000 and is used to be hit by the acceleration device 2000 and hit the ground, and the detection device is used to detect the speed of the anti-rebound load module 1000, so as to test the acceleration performance of the acceleration device 2000.

[0052] Since the anti-rebound load module 1000 can effectively dissipate the overall rebound trend and greatly weaken the rebound movement, and the rebound force can be eliminated by using the load itself, the anti-rebound load module 1000 can be applied to the anti-rebound requirements of large mass and high speed test pieces, so that the acceleration device test system can be applied to the test operation in the high speed collision test of the maglev train, and the applicability is strong.

[0053] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An anti-rebound load module, used to be launched by an acceleration device (2000) and hit the ground to test the acceleration performance of the acceleration device (2000), characterized in that: The anti-rebound load module comprises a base (1), and a disengagement mechanism (2) and a load mechanism (3) respectively mounted on the base (1); The disengagement mechanism (2) is used to be connected to the driving end (2001) of the acceleration device (2000) and to be disengaged from the driving end (2001) when the driving end (2001) accelerates and moves to a certain stroke; The load mechanism (3) includes a guide column (31) and a load component (32) sleeved on the guide column (31), the first end of the guide column (31) is connected to the base (1), the second end of the guide column (31) is provided with a limit platform (311), an activity space for the load component (32) is formed between the base (1) and the limit platform (311), the thickness of the load component (32) along the length direction of the guide column (31) is smaller than the height of the activity space, and the load component (32) is used to move on the guide column (31) in the opposite direction of the rebound force when the base (1) generates a rebound force, thereby offsetting the rebound force; The load assembly (32) includes a plurality of load discs (321), a guide hole adapted to the guide column (31) is provided at the center of the load disc (321), and the plurality of load discs (321) are stacked and sleeved on the guide column (31) in sequence through the guide hole; The disengagement mechanism (2) includes a connecting seat (21) and a locking assembly (22) provided on the connecting seat (21); the connecting seat (21) is connected to the base (1) and is provided with a connecting hole (211); the connecting hole (211) is used to plug in the driving end (2001) of the acceleration device (2000); the locking assembly (22) includes a locking tongue (221) and a limiting pin (222); the locking tongue (221) is rotatably mounted on the side wall of the connecting hole (211) and is used to abut against a preset limiting step (2002) on the driving end (2001); the limiting pin (222) is used to plug in the connecting seat (21) and limit the rotation of the locking tongue (221); The limiting pin (222) is used to be connected to the fixed end of the acceleration device (2000) via a rope (223) and is driven by the rope (223) to separate from the connecting seat (21) when the driving end (2001) of the acceleration device (2000) is accelerated and moved to a certain stroke, thereby releasing the limiting effect on the locking tongue (221). The locking tongue (221) is also used to be driven by the driving end (2001) of the acceleration device (2000) to rotate and release the limiting effect on the limiting step (2002) after the limiting is released.

2. The anti-rebound load module according to claim 1, characterized in that: The limiting platform (311) and the guide column (31) are integrally formed, a threaded hole (11) is provided on the base (1), and a first screw (312) threadedly connected to the threaded hole (11) is provided at the first end of the guide column (31).

3. The anti-rebound load module according to claim 1, characterized in that: The load mechanism (3) further comprises an adjusting nut, a second screw is provided at the second end of the guide column (31), the adjusting nut is threadedly connected to the second screw and forms the limiting platform (311), and the adjusting nut is used to move axially relative to the second screw through thread engagement to adjust the height of the activity space.

4. The anti-rebound load module according to claim 1, characterized in that: The detachment mechanism (2) is arranged at the center of the base (1), and a plurality of the loading mechanisms (3) are provided. The plurality of loading mechanisms (3) are arranged in a circular array with the detachment mechanism (2) as the center point.

5. The anti-rebound load module according to claim 1, characterized in that: A mounting groove (212) is provided on the side wall of the connecting hole (211) and penetrates the connecting seat (21) along the radial direction of the connecting hole (211); a pin hole (213) is provided on the end surface of the connecting seat (21) along the axial direction of the connecting hole (211) and extends into the mounting groove (212); the locking tongue (221) is rotatably mounted in the mounting groove (212); and the limiting pin (222) is used to be inserted into the pin hole (213); The locking tongue (221) comprises a first limiting portion (2211) and a second limiting portion (2212) which are arranged at an angle along the rotation direction thereof, wherein the first limiting portion (2211) is used to abut against a limiting step (2002) preset on the driving end (2001), and the second limiting portion (2212) is used to be abutted and limited by the limiting pin (222) when the first limiting portion (2211) abuts against the limiting step (2002). The second limiting portion (2212) is also used to be driven to rotate to protrude outside the mounting slot (212) after the first limiting portion (2211) rotates away from the limiting step (2002).

6. The anti-rebound load module according to claim 5, characterized in that: A plurality of locking assemblies (22) are provided, and the plurality of locking assemblies (22) are arranged equidistantly along the circumference of the connecting hole (211).

7. The anti-rebound load module according to claim 1, characterized in that: The disengagement mechanism (2) and the loading mechanism (3) are both mounted on the same surface of the base (1), and the anti-rebound loading module further comprises an elastic buffer layer (4) provided on a surface of the base (1) away from the disengagement mechanism (2).

8. An acceleration device testing system, comprising an acceleration device (2000) and a detection device, characterized in that: The acceleration device testing system further comprises an anti-rebound load module as claimed in any one of claims 1 to 7, wherein the anti-rebound load module is connected to the acceleration device (2000) and is used to be struck by the acceleration device (2000) and to hit the ground, and the detection device is used to detect the speed of the anti-rebound load module to test the acceleration performance of the acceleration device (2000).

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