Oscillating impact testing machine with fall-off protection

Abstract

The utility model relates to a kind of oscillation impact testing machines with falling protection function, including test mechanism and protection mechanism, the test mechanism includes base, test frame connected on base, lifting cylinder and hook connected in test frame top, the lifting cylinder is connected with downward extending spring telescopic rod to cooperate with lifting drive, the hook is connected in the bottom of spring telescopic rod, the side of base is equipped with vertical support column, the protection mechanism includes protection plate and blocking cloth, the protection plate is connected on support column, the top of this protection plate is equipped with mounting plate extending to test frame, the bottom surface of mounting plate is connected with blocking cloth, and buffer interval is equipped between blocking cloth and protection plate;Realized that test mechanism is carried out oscillation impact test to luggage, when luggage accidentally flies out, first hit blocking cloth buffer to weaken impact force, then hit protection plate across blocking cloth, share, consume luggage impact force, prolong the service life of protection mechanism.

Description

Technical Field

[0001] This invention relates to the field of vibration and impact testing machine technology, and in particular to a vibration and impact testing machine with a detachment protection function. Background Technology

[0002] Suitcases are used for convenient carrying and storage of belongings when people travel. After production, suitcases require sampling and testing. The luggage vibration test is a common method used to verify whether the luggage can withstand vibration and shock during daily use. It aims to simulate the vibrations a luggage might experience during transportation to assess its structural durability and functional reliability. Typically, the luggage's handle is hooked onto a hook for connection. To improve the realism of the simulation, a certain weight is added according to the luggage's specifications. During the up-and-down vibration of the suitcase, the added weight may cause the handle to detach from the hook and fly off unexpectedly, potentially causing injury to the testing personnel.

[0003] Patent CN202323062225.3, entitled "A Bag Vibration Impact Testing Machine," discloses a technical solution that uses protective mechanisms on both sides of the testing machine. These mechanisms include sliding rods, protective plates, and support rods. The support rods and protective plates work together to prevent bags from accidentally flying out, thus improving testing safety. However, when a bag flies out and impacts the protective plate, part of the impact force is transmitted downwards to the locking mechanism used to fix the protective mechanism. Repeated impacts can easily damage the locking mechanism, causing the protective plate to lose its fixation. Another portion of the impact force is transmitted to the ground via the support rods, causing wear and tear on the test chamber floor.

[0004] Therefore, designing a vibration impact testing machine with detachment protection function that can reduce the impact force of bags and prevent damage to equipment and test chambers has become an urgent technical problem to be solved. Summary of the Invention

[0005] To solve the above problems, this utility model provides an oscillation impact testing machine with a detachment protection function.

[0006] The present invention provides a vibration impact testing machine with a detachment protection function, comprising a testing mechanism and a protective mechanism. The testing mechanism includes a base, a testing frame connected to the base, a lifting cylinder and a hook connected to the top of the testing frame, the lifting cylinder being connected to a downwardly extending spring telescopic rod for lifting and lowering drive, the hook being connected to the bottom of the spring telescopic rod, and a vertical support column being provided on the side of the base. The protective mechanism includes a protective plate and a blocking cloth, the protective plate being connected to the support column, the top of the protective plate being provided with a mounting plate extending towards the testing frame, the blocking cloth being connected to the bottom surface of the mounting plate, and a buffer gap being provided between the blocking cloth and the protective plate.

[0007] With the above structure, by pulling out the luggage's handle and hanging it on the hook, and placing a weight matching its size inside the luggage, the lifting cylinder is activated. The lifting cylinder first pulls the spring telescopic rod, the hook, and the luggage upwards, and then rapidly lowers all three. Once they reach their lowest point, the lifting cylinder stops operating. The speed of the luggage's descent pulls the spring telescopic rod, generating initial momentum. Under the influence of the spring force and the luggage's weight, the spring telescopic rod reciprocates vertically, causing the luggage hanging on the hook to experience vertical oscillations until the energy is exhausted. The spring telescopic rod and luggage then return to rest. The lifting cylinder is then activated again to repeat the oscillations until the luggage is damaged or the specified number of repetitions is reached, ending the oscillation impact test. A support column is vertically installed on the side of the base, and the protective plate of the protective mechanism is connected to the support column, fixing the protective plate to the side of the test mechanism. When the luggage is removed from the hook... When the bag accidentally detaches and flies out, it impacts the side protective plate. A mounting plate extending from the top of the protective plate to the test frame is located there. A blocking cloth is attached to the bottom of the mounting plate and hangs down naturally. The flying bag first comes into contact with the blocking cloth. A buffer gap exists between the blocking cloth and the protective plate. The blocking cloth deforms under impact, forming a wrinkled buffer layer that absorbs and disperses the impact force of the bag. The side of the bag that is in contact with the blocking cloth is pulled by the reaction force of the blocking cloth due to friction, causing it to flip and dissipate the impact energy. Then, the bag passes through the buffer gap via the blocking cloth and impacts the protective plate with a smaller impact force, protecting the protective plate and support column from breaking due to the impact. This allows the test mechanism to conduct an oscillation impact test on the bag. When the bag accidentally flies out, it first impacts the blocking cloth to buffer and reduce the impact force, and then impacts the protective plate via the blocking cloth, distributing and dissipating the impact force of the bag and extending the service life of the protective mechanism.

[0008] As a further improvement of this utility model, the protective plate is provided with connecting sleeves on both sides, the position of the support column corresponds to the connecting sleeve, the connecting sleeve is sleeved on the outside of the support column for lifting and moving cooperation, the connecting sleeve is provided with threaded holes that connect the inner and outer sides laterally, the threaded holes are screwed with positioning bolts, the positioning bolts pass through the connecting sleeve and abut against the support column.

[0009] With the above structure, by rotating the positioning bolt outward from the threaded hole, the mating positioning bolt is separated from the support column. The connecting sleeve sleeved on the outside of the support column can move freely up and down along the support column. By pushing the connecting sleeve, the protective plate is moved up and down to a suitable height to match different bag sizes and the weight of the contents inside the bag, so that the protective plate can block the trajectory of the bag if it is accidentally thrown out. Then, the positioning bolt is rotated again to abut against the support column. The friction between the positioning bolt, the inner wall of the connecting sleeve and the support column is used to fix the position of the connecting sleeve on the support column.

[0010] As a further improvement of this utility model, the protective plate is covered with a protective pad on the side facing the blocking cloth.

[0011] With the above structure, a protective pad is covered on the side of the protective plate facing the barrier cloth, which provides a second buffer when the bag hits the protective plate through the barrier cloth, further reducing the impact force on the bag.

[0012] As a further improvement of this utility model, the top of the blocking cloth is provided with several horizontally arranged lifting rings, and the bottom of the mounting plate is provided with lifting hooks corresponding to the lifting rings.

[0013] With the above structure, the top of the barrier cloth is provided with several horizontally arranged lifting rings, and the bottom of the mounting plate is provided with hooks corresponding to the lifting rings. The hooks are passed through the lifting rings so that the barrier cloth is hung on the hooks. After the barrier cloth is damaged, the lifting rings can be removed from the hooks so that the barrier cloth is separated from the mounting plate and the barrier cloth can be replaced.

[0014] As a further improvement of this utility model, the blocking cloth is provided with a puncture-resistant layer made of Kevlar fiber on the side facing the hook.

[0015] With the above structure, a puncture-resistant layer made of Kevlar fiber is provided on the side of the barrier cloth facing the hook, which improves the strength of the barrier cloth, prevents it from being scratched by sharp parts on the bag, and extends the service life of each barrier cloth. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic diagram of the structure of this utility model.

[0017] Figure 2 The diagram shown is a schematic of the lifting ring and hook structure in part A.

[0018] 1-Base, 2-Test frame, 3-Lifting cylinder, 4-Hook, 5-Spring telescopic rod, 6-Support column, 7-Protective plate, 8-Blocking cloth, 9-Mounting plate, 10-Connecting sleeve, 11-Threaded hole, 12-Positioning bolt, 13-Protective pad, 14-Lifting ring, 15-Lifting hook. Detailed Implementation

[0019] like Figures 1-2 The diagram shows an oscillation impact testing machine with detachment protection function, comprising a testing mechanism and a protective mechanism. The testing mechanism includes a base 1, a test frame 2 connected to the base 1, a lifting cylinder 3 and a hook 4 connected to the top of the test frame 2, the lifting cylinder 3 being connected to a downwardly extending spring telescopic rod 5 for lifting and lowering drive, and the hook 4 being connected to the bottom of the spring telescopic rod 5. The side of the base 1 is provided with a vertical support column 6. The protective mechanism includes a protective plate 7 and a blocking cloth 8. The protective plate 7 is connected to the support column 6, and the top of the protective plate 7 is provided with a mounting plate 9 extending towards the test frame 2. The blocking cloth 8 is connected to the bottom surface of the mounting plate 9, and a buffer interval is provided between the blocking cloth 8 and the protective plate 7.

[0020] By pulling out the handle of the bag and hanging it on hook 4, and placing a weight matching its size inside the bag, the lifting cylinder 3 is activated. The lifting cylinder 3 first pulls the spring telescopic rod 5, hook 4, and bag upwards, and then rapidly lowers them. After reaching the lowest point, the lifting cylinder 3 stops operating. The speed of the bag's descent pulls the spring telescopic rod 5, generating initial momentum. Under the influence of the elasticity of the spring telescopic rod 5 and the weight of the bag, the spring telescopic rod 5 performs vertical reciprocating extension and retraction. The bag hanging on hook 4 experiences vertical oscillation until the energy is exhausted, and the spring telescopic rod 5 and bag return to rest. Then, the lifting cylinder 3 is activated again to repeat the oscillation of the bag until the bag is damaged or the specified number of repetitions is reached, ending the oscillation impact test. The support column 6 is vertically set on the side of the base 1, and the protective plate 7 of the protective mechanism is connected to the support column 6, fixing the protective plate 7 to the side of the test mechanism. When the bag falls off the hook 4... When the bag flies outward, it impacts the side protective plate 7. A mounting plate 9, extending from the top of the protective plate 7 to the test frame 2, is located there. A blocking cloth 8 is attached to the bottom of the mounting plate 9 and hangs down naturally. The flying bag first comes into contact with the blocking cloth 8. A buffer gap exists between the blocking cloth 8 and the protective plate 7. The blocking cloth 8 deforms under impact, forming a wrinkled buffer layer that absorbs and disperses the impact force of the bag. The side of the bag that is in contact with the blocking cloth 8 is pulled by the reaction force of the blocking cloth 8 due to friction, causing it to flip and dissipate the impact energy. Then, the bag passes through the buffer gap via the blocking cloth 8 and impacts the protective plate 7 with a smaller impact force, protecting the protective plate 7 and the support column 6 from breaking due to the impact. This achieves the test mechanism's vibration impact test on the bag. When the bag accidentally flies out, it first impacts the blocking cloth 8 to buffer and reduce the impact force, and then impacts the protective plate 7 via the blocking cloth 8, thus distributing and dissipating the impact force of the bag and extending the service life of the protective mechanism.

[0021] The protective plate 7 is provided with connecting sleeves 10 on both sides. The position of the support column 6 corresponds to the connecting sleeve 10. The connecting sleeve 10 is sleeved on the outside of the support column 6 for lifting and moving. The connecting sleeve 10 is provided with threaded holes 11 that connect the inner and outer sides laterally. The threaded holes 11 are screwed with positioning bolts 12. The positioning bolts 12 pass through the connecting sleeve 10 and abut against the support column 6.

[0022] By rotating the positioning bolt 12 outwards from the threaded hole 11, the mating positioning bolt 12 is separated from the support column 6. The connecting sleeve 10, which is sleeved on the outside of the support column 6, can move freely up and down along the support column 6. By pushing the connecting sleeve 10, the protective plate 7 is moved up and down to a suitable height to match different bag sizes and the weight of the contents inside the bag, so that the protective plate 7 can block the trajectory of the bag if it is accidentally thrown out. Then, the positioning bolt 12 is rotated again to abut against the support column 6. The friction between the positioning bolt 12, the inner wall of the connecting sleeve 10 and the support column 6 is used to fix the position of the connecting sleeve 10 on the support column 6.

[0023] The protective plate 7 is covered with a protective pad 13 on the side facing the blocking cloth 8.

[0024] The protective pad 13 is covered on the side of the protective plate 7 facing the blocking cloth 8, which provides a second cushioning when the bag hits the protective plate 7 through the blocking cloth 8, further reducing the impact force of the bag.

[0025] The top of the blocking cloth 8 is provided with several horizontally arranged lifting rings 14, and the bottom of the mounting plate 9 is provided with lifting hooks 15 corresponding to the lifting rings 14.

[0026] The top of the blocking cloth 8 is provided with several horizontally arranged lifting rings 14, and the bottom of the mounting plate 9 is provided with hooks 15 corresponding to the lifting rings 14. The hooks 15 are passed through the lifting rings 14, so that the blocking cloth 8 is hung on the hooks 15. After the blocking cloth 8 is damaged, the lifting rings 14 can be removed from the hooks 15, so that the blocking cloth 8 can be separated from the mounting plate 9 and the blocking cloth 8 can be replaced.

[0027] The blocking cloth 8 has a puncture-resistant layer made of Kevlar fiber on the side facing the hook 4.

[0028] The barrier fabric 8 has a puncture-resistant layer made of Kevlar fiber on the side facing the hook 4, which improves the strength of the barrier fabric 8, prevents it from being scratched by sharp parts on the bag, and extends the service life of each barrier fabric 8.

Claims

1. A vibration impact testing machine with detachment protection function, comprising a testing mechanism and a protective mechanism, characterized in that: The testing mechanism includes a base (1), a test frame (2) connected to the base (1), a lifting cylinder (3) and a hook (4) connected to the top of the test frame (2). The lifting cylinder (3) is connected to a downward-extending spring telescopic rod (5) for lifting and lowering drive. The hook (4) is connected to the bottom of the spring telescopic rod (5). The side of the base (1) is provided with a vertical support column (6). The protective mechanism includes a protective plate (7) and a blocking cloth (8). The protective plate (7) is connected to the support column (6). The top of the protective plate (7) is provided with a mounting plate (9) extending towards the test frame (2). The blocking cloth (8) is connected to the bottom surface of the mounting plate (9). A buffer interval is provided between the blocking cloth (8) and the protective plate (7).

2. The vibration impact testing machine with detachment protection function according to claim 1, characterized in that: The protective plate (7) is provided with connecting sleeves (10) on both sides. The position of the support column (6) corresponds to the connecting sleeve (10). The connecting sleeve (10) is sleeved on the outside of the support column (6) for lifting and moving. The connecting sleeve (10) is provided with threaded holes (11) that connect the inner and outer sides laterally. The threaded holes (11) are screwed with positioning bolts (12). The positioning bolts (12) pass through the connecting sleeve (10) and abut against the support column (6).

3. The vibration impact testing machine with detachment protection function according to claim 1, characterized in that: The protective panel (7) is covered with a protective pad (13) on the side facing the barrier cloth (8).

4. The vibration impact testing machine with detachment protection function according to claim 1, characterized in that: The top of the blocking cloth (8) is provided with several horizontally arranged lifting rings (14), and the bottom of the mounting plate (9) is provided with hooks (15) corresponding to the lifting rings (14).

5. The vibration impact testing machine with detachment protection function according to claim 1, characterized in that: The blocking cloth (8) has a puncture-resistant layer made of Kevlar fiber on the side facing the hook (4).

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