Anti-impact detection device for wooden tray

Abstract

The invention relates to the technical field of impact testing, in particular to an impact resistance detection device for a wooden tray, which comprises a test mounting part, a clamping and putting part is mounted on the test mounting part, and the clamping and putting part is used for self-adapting to the gravity center of the wooden tray; a sliding limiting piece is mounted on the test mounting piece; two supporting pieces are mounted on the test mounting piece; the test installation part is provided with a pushing part, and the pushing part is used for driving the sliding limiting part and the supporting part. A marking piece is mounted on the sliding limiting piece; by adopting the sliding limiting piece and the supporting piece, normal falling of the wooden tray cannot be affected, the wooden tray cannot be shielded, and the testing result cannot be affected, meanwhile, the pushing piece can control the sliding limiting piece to move to be attached to the side face of the wooden tray in a linkage mode, and the accuracy of the testing result is guaranteed; according to the structure, the wooden tray does not need to be taken down for measurement after a falling impact resistance test is carried out on the wooden tray.

Description

Technical Field

[0001] This invention relates to the field of impact testing technology, specifically to an impact resistance testing device for wooden pallets. Background Technology

[0002] In the actual manufacturing process of wooden pallets, it is necessary to conduct sampling impact resistance tests on the finished products to ensure their reliability. This is because in logistics and handling applications, the corners of wooden pallets are the stress concentration points and are often damaged by impacts due to forklift operation deviations, equipment failures, or accidental slippage during manual handling. Currently, corner drop impact resistance tests for wooden pallets are usually carried out using specialized impact resistance equipment. The specific operation involves clamping and fixing the wooden pallet at a height using the equipment, and then releasing the clamp to allow the wooden pallet to fall freely to the ground, thereby testing its impact resistance performance. While existing wooden pallet impact testing devices can quickly clamp wooden pallets, they struggle to automatically adapt to the pallet's center of gravity. If the pallet's center of gravity deviates from the preset requirements, the drop posture is easily affected after releasing the clamp, thus impacting the accuracy of the impact performance test data. Especially when testing multiple groups of wooden pallets in batches, it is difficult to establish a unified testing standard, making it hard to guarantee the consistency of test results. Furthermore, it is inconvenient to easily inspect the deformation of wooden pallets after a drop; traditional testing requires manual handling and measurement of each pallet, a cumbersome and inefficient process. In addition, the device lacks an automatic marking function for the testing position, making it prone to duplicate testing when conducting corner drop impact tests on the four corners of the wooden pallet, further reducing overall testing efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide an impact resistance testing device for wooden pallets, in order to solve the problems mentioned in the background art, such as the inconvenience of quickly checking the deformation of wooden pallets after a drop and the low efficiency of measuring after manually handling the wooden pallets.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an impact resistance testing device for wooden pallets, comprising a test mounting component, wherein a clamping and dispensing component is mounted on the test mounting component, the clamping and dispensing component being used to adaptively adjust the center of gravity of the wooden pallet; a sliding limiting component is mounted on the test mounting component; two supporting components are mounted on the test mounting component; a pushing component is mounted on the test mounting component, and the pushing component is used to drive the sliding limiting component and the supporting components; a marking component is mounted on the sliding limiting component; the test mounting component includes: a test mounting plate, a tension spring mounting plate, and a first tension spring, wherein the tension spring mounting plate is fixedly mounted on the test mounting plate, and the first tension spring is fixedly mounted on the inner side of the tension spring mounting plate; the first tension spring is located on the inner side of the test mounting plate.

[0005] Preferably, the test mounting component further includes: a stop plate, an impact stop block, and an impact force sensor. Two stop plates are fixedly mounted on the test mounting plate. Each of the two stop plates is provided with a through groove. An impact stop block is slidably mounted on the test mounting plate. An impact force sensor is fixedly mounted on the test mounting plate, and the detection end of the impact force sensor is attached to the bottom of the impact stop block.

[0006] Preferably, the clamping and dispensing component includes: a dispensing mounting frame, a sliding shaft, a threaded rod, a drive motor, and a lifting slider. The dispensing mounting frame is fixedly mounted on the test mounting plate; the sliding shaft is fixedly mounted on the dispensing mounting frame; the threaded rod is rotatably mounted on the dispensing mounting frame; the drive motor is fixedly mounted on the inner side of the dispensing mounting frame, and the threaded rod is fixedly mounted on the output shaft of the drive motor; the lifting slider is slidably mounted on the sliding shaft, and the lifting slider is threadedly connected to the threaded rod.

[0007] Preferably, the clamping and dispensing component further includes: a rotating shaft, a clamping frame, a clamping hydraulic cylinder, a sliding column, and a friction spring. The rotating shaft is threadedly connected to the lifting slider. The clamping frame is rotatably mounted on the rotating shaft. The clamping hydraulic cylinder is fixedly mounted on the clamping frame, and the output shaft of the clamping hydraulic cylinder passes through the clamping frame. The output shaft of the clamping hydraulic cylinder is used to clamp the wooden pallet. A sliding column is slidably inserted into the lifting slider, and the end of the sliding column is provided with a rubber coating. A friction spring is sleeved inside the lifting slider, and the friction spring is connected between the sliding column and the lifting slider. The rubber coating at the end of the sliding column is attached to the side of the clamping frame.

[0008] Preferably, the sliding limiting component includes: a limiting sliding plate, a sliding block, and an angle scale. The sliding block is fixedly installed at the bottom of the limiting sliding plate and is slidably installed on the test mounting plate. The end of the first tension spring is connected to the sliding block. Two angle scales are fixedly installed on the limiting sliding plate.

[0009] Preferably, the support includes: a lifting block and a second tension spring; the lifting block is slidably mounted on the stop plate, and the bottom of the lifting block has an inclined structure; one end of the second tension spring is fixedly mounted on the lifting block, and the other end of the second tension spring is fixedly mounted on the test mounting plate; the top of the lifting block has an arc-shaped structure.

[0010] Preferably, the propulsion component includes: a control slider and a propulsion hydraulic cylinder, wherein the control slider is slidably mounted on the test mounting plate; both ends of the control slider are inclined structures; both ends of the control slider are pressed and fitted against the bottom inclined surfaces of the two lifting blocks; two propulsion hydraulic cylinders are fixedly mounted on the test mounting plate, and the output shafts of the two propulsion hydraulic cylinders are respectively fixedly mounted on the control slider; the control slider is used to push the limit sliding plate.

[0011] Preferably, the propulsion component further includes an extrusion column, which is fixedly mounted on the control slider.

[0012] Preferably, the marking element includes: a marking post and a marking sponge, the marking post being slidably mounted on a limiting sliding plate; a marking sponge being fixedly mounted at the end of the marking post; a through hole being provided on the marking post; the marking post being aligned with the extrusion post; and ink being absorbed on the marking sponge.

[0013] Preferably, the marking element further includes a marking spring, wherein the marking spring is sleeved on the marking post and the marking spring is connected between the marking post and the limiting sliding plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention employs a rotatable clamping frame that automatically rotates to adapt to the center of gravity of the wooden pallet after clamping, preventing center of gravity shift that could affect test results. Simultaneously, a sliding column elastically fits the clamping frame, facilitating friction and reducing frame wobbling time after the wooden pallet is clamped. The use of sliding limiters and supports ensures the wooden pallet's normal drop is not affected, preventing obstruction and ensuring test results. Furthermore, a propulsion component allows for rapid control of the two supports to lift and lower the dropped wooden pallet for measurement. The propulsion component also controls the sliding limiters to move and fit against the side of the wooden pallet, ensuring accurate measurement results. This structure eliminates the need to remove the wooden pallet after drop impact testing, allowing for direct and efficient measurement. It also avoids the deformation of the wooden pallet caused by manual removal. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an impact resistance testing device for wooden pallets according to the present invention; Figure 2 This is a schematic diagram of the back structure of an impact resistance testing device for wooden pallets according to the present invention; Figure 3 This is a schematic diagram of the test mounting component structure of the present invention; Figure 4 This is a schematic diagram of the clamping and dispensing component structure of the present invention; Figure 5 For the present invention Figure 1 Enlarged view of the structure of region C in the middle; Figure 6 This is a cross-sectional view of the internal structure of an impact resistance testing device for wooden pallets according to the present invention. Figure 7 For the present invention Figure 6 Enlarged view of the structure of region E in the middle; Figure 8 This is a schematic diagram of the sliding limiting component structure of the present invention; Figure 9 For the present invention Figure 1 Enlarged view of the structure of region D in the middle; Figure 10 This is a schematic diagram of the propulsion component structure of the present invention; Figure 11 This is a schematic diagram of the marker structure of the present invention.

[0016] In the attached diagram, the components represented by each number are as follows: 1. Test mounting components; 101. Test mounting plate; 1011. Tension spring mounting plate; 102. First tension spring; 103. Stop plate; 104. Impact stop block; 105. Impact force sensor; 2. Clamping and dispensing components; 201. Dispensing mounting frame; 202. Sliding shaft; 203. Threaded rod; 204. Drive motor; 205. Lifting slider; 2051. Rotating shaft; 206. Clamping frame; 207. Clamping hydraulic cylinder; 208. Sliding column; 209. Friction spring; 3. Sliding limit components; 301. Limiting sliding plate; 3011. Sliding block; 302. Angle scale; 4. Support components; 401. Lifting block; 402. Second tension spring; 5. Propulsion components; 501. Interlocking slider; 502. Propulsion hydraulic cylinder; 503. Extrusion column; 6. Marking components; 601. Marking column; 602. Marking sponge; 603. Marking spring. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] This invention provides a technical solution: such as Figures 1 to 11 The impact resistance testing device for wooden pallets shown includes a test mounting component 1, on which a clamping and dispensing component 2 is mounted for adaptively adjusting the center of gravity of the wooden pallet; a sliding limit component 3 is mounted on the test mounting component 1; two support components 4 are mounted on the test mounting component 1; a pushing component 5 is mounted on the test mounting component 1, and the pushing component 5 is used to drive the sliding limit component 3 and the support components 4; a marking component 6 is mounted on the sliding limit component 3; the test mounting component 1 includes: a test mounting plate 101, a tension spring mounting plate 1011, and a first tension spring 102, on which the tension spring mounting plate 1011 is fixedly mounted, and the first tension spring 102 is fixedly mounted on the inner side of the tension spring mounting plate 1011; the first tension spring 102 is located inside the test mounting plate 101.

[0019] The test mounting component 1 further includes: a stop plate 103, an impact stop block 104, and an impact force sensor 105. Two stop plates 103 are fixedly mounted on the test mounting plate 101; each of the two stop plates 103 has a through groove; the impact stop block 104 is slidably mounted on the test mounting plate 101; the impact force sensor 105 is fixedly mounted on the test mounting plate 101, and the detection end of the impact force sensor 105 is attached to the bottom of the impact stop block 104. The clamping and dispensing component 2 includes: a dispensing mounting frame 201, a sliding shaft 202, a threaded rod 203, a drive motor 204, and a lifting slider 205. The dispensing mounting frame 201 is fixedly mounted on the test mounting plate 101; the sliding shaft 202 is fixedly mounted on the dispensing mounting frame 201; the threaded rod 203 is rotatably mounted on the dispensing mounting frame 201; the drive motor 204 is fixedly mounted inside the dispensing mounting frame 201, and the threaded rod 203 is fixedly mounted on the output shaft of the drive motor 204. 03; The lifting slider 205 is slidably mounted on the sliding shaft 202, and the lifting slider 205 is threadedly connected to the threaded rod 203; the clamping and dispensing component 2 also includes: a rotating shaft 2051, a clamping frame 206, a clamping hydraulic cylinder 207, a sliding column 208, and a friction spring 209. The rotating shaft 2051 is threadedly connected to the lifting slider 205; the clamping frame 206 is rotatably mounted on the rotating shaft 2051; the clamping hydraulic cylinder 207 is fixedly mounted on the clamping frame 206, and the output shaft of the clamping hydraulic cylinder 207 passes through the clamping frame 206; the output shaft of the clamping hydraulic cylinder 207 is used to clamp the wooden pallet; the sliding column 208 is slidably inserted into the lifting slider 205, and the end of the sliding column 208 is provided with a rubber coating; the friction spring 209 is sleeved inside the lifting slider 205, and the friction spring 209 is connected between the sliding column 208 and the lifting slider 205; the rubber coating at the end of the sliding column 208 is attached to the side of the clamping frame 206; the clamping and dispensing component 2 is used. It can clamp wooden pallets for impact resistance testing, and with the help of impact force sensor 105, it can detect the impact force of the wooden pallet falling, making it easy to adjust the drop height. The rotatable clamping frame 206 can automatically rotate to adapt to the center of gravity of the wooden pallet after clamping, avoiding the center of gravity shift from affecting the test results. At the same time, the sliding column 208 elastically fits against the clamping frame 206, and through friction, it acts on the clamping frame 206, which can shorten the swaying time of the clamping frame 206 after clamping the wooden pallet, so that it can quickly stabilize before the drop test. The friction spring 209 elastically squeezes the sliding column 208, so that the sliding column 208 always elastically fits against the clamping frame 206. When the clamping frame 206 swings back and forth due to the center of gravity of the wooden pallet, it can increase the friction and shorten the swinging time.

[0020] The sliding limiting component 3 includes: a limiting sliding plate 301, a sliding block 3011, and an angle scale 302. The sliding block 3011 is fixedly installed at the bottom of the limiting sliding plate 301, and the sliding block 3011 is slidably installed on the test mounting plate 101. The end of the first tension spring 102 is connected to the sliding block 3011. Two angle scales 302 are fixedly installed on the limiting sliding plate 301. The support component 4 includes: a lifting block 401 and a second tension spring 402. The lifting block 401 is slidably installed on the stop plate 103, and the bottom of the lifting block 401 has a sloped structure. The end of the second tension spring 402 is fixedly installed on the lifting block 401, and the second tension spring... The other end of 402 is fixedly installed on the test mounting plate 101; the top of the lifting block 401 has an arc-shaped structure; the pushing component 5 includes: a control slider 501 and a pushing hydraulic cylinder 502, the control slider 501 is slidably installed on the test mounting plate 101; both ends of the control slider 501 have a sloping structure; the two ends of the control slider 501 are pressed and attached to the bottom sloping surfaces of the two lifting blocks 401; two pushing hydraulic cylinders 502 are fixedly installed on the test mounting plate 101, and the output shafts of the two pushing hydraulic cylinders 502 are respectively fixedly installed on the control slider 501; the control slider 501 is used to push the limiting sliding plate 301; a sliding limiting component 3 and a support component are used. 4. This design ensures the wooden pallet's normal drop test is not affected, and the pallet is not obstructed, thus not impacting the test results. Simultaneously, the pusher 5, in conjunction with the two support components 4, quickly supports the wooden pallet after the drop test, facilitating measurement. The pusher 5 also controls the sliding limit component 3 to move and adhere to the side of the wooden pallet. This structure eliminates the need to remove the wooden pallet after the drop impact test, allowing for direct and efficient measurement. It also avoids the deformation of the wooden pallet after manual removal, which could affect the measurement results and ensure accuracy. By directly measuring the wooden pallet after impact... The angle of the frame can intuitively reflect the degree of deformation of the wooden pallet, and the structure is simple to control. The hydraulic cylinder 502 can be controlled to drive the linkage slider 501 to move and squeeze the two lifting blocks 401. Since the bottom of the two lifting blocks 401 is a sloping structure, the two lifting blocks 401 can be controlled to rise. The two lifting blocks 401 can move upward to support the wooden pallet and ensure the detection benchmark. At the same time, after the linkage slider 501 moves and squeezes the two lifting blocks 401 to rise, it will continue to move and push the limit sliding plate 301 forward to fit against the side of the wooden pallet. At this time, the operator can use two angle scales 302 to measure the angle of the two sides of the wooden pallet.

[0021] The pusher 5 also includes an extrusion column 503, which is fixedly mounted on the control slider 501. The marking component 6 includes a marking column 601 and a marking sponge 602. The marking column 601 is slidably mounted on the limiting sliding plate 301. The marking sponge 602 is fixedly mounted at the end of the marking column 601. The marking column 601 has a through hole. The marking column 601 is aligned with the extrusion column 503. The marking sponge 602 absorbs ink. The marking component 6 also includes a marking spring 603, which is sleeved on the marking column 601 and connected between the marking column 601 and the limiting sliding plate 301. By using the extrusion column 503, the marking component 6 can be controlled to mark the wooden pallet when the pusher 5 drives the device to measure it. This makes it easier for workers to distinguish the edges and corners of the tested wooden pallets and avoids repeated testing due to confusion. The structure is simple to control.

[0022] Working Principle: First, place the device on the ground and manually place the wooden pallet on the clamping frame 206. Then, extend the output shaft of the clamping hydraulic cylinder 207 to clamp the wooden pallet and release it. At this time, the clamping frame 206 will automatically rotate to adapt to the center of gravity of the wooden pallet. During this process, the friction spring 209 elastically compresses the sliding column 208, ensuring that the sliding column 208 always elastically contacts the clamping frame 206. When the clamping frame 206 swings back and forth due to the center of gravity of the wooden pallet, it increases friction and shortens the swing time. Simultaneously, the drive motor 204 drives the threaded rod 203 to rotate, causing the lifting slider 205 to rise and fall to adjust the drop height of the wooden pallet. After the clamping frame 206 returns to stability, retract the output shaft of the clamping hydraulic cylinder 207 to release the clamp on the wooden pallet. The wooden pallet naturally falls onto the impact stop block 104, and the impact force is detected by the impact force sensor 105. After the wooden pallet falls onto the impact stop block 104, it is stopped by two lifting blocks 401. The limiting sliding plate 301 stops and limits the movement; at this time, the control hydraulic cylinder 502 drives the linkage slider 501 to move, squeezing the two lifting blocks 401. Since the bottom of the two lifting blocks 401 is a sloping structure, it will move upward and support the wooden pallet, ensuring the detection benchmark; after the linkage slider 501 squeezes the two lifting blocks 401 and rises, it continues to move, pushing the limiting sliding plate 301 forward and fitting it against the side of the wooden pallet. At this time, the angle on both sides of the wooden pallet can be measured manually through the two angle scales 302 to determine whether the corner accuracy deviation of the wooden pallet after the drop is within the allowable range (i.e., whether it maintains 90 degrees). If the deviation is large, it indicates that the corner drop impact deformation test of the wooden pallet is not up to standard; when the linkage slider 501 pushes the limiting sliding plate 301, it will simultaneously drive the squeezing column 503 to squeeze the marking column 601, compress the marking spring 603, and then drive the marking sponge 602 to fit against the side corner of the wooden pallet to assist in completing the marking work.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An impact resistance testing device for wooden pallets, comprising a test mounting component (1), wherein a clamping and dispensing component (2) is mounted on the test mounting component (1), characterized in that: The clamping and dispensing component (2) is used to adapt to the center of gravity of the wooden pallet; a sliding limit component (3) is installed on the test mounting component (1); two support components (4) are installed on the test mounting component (1). The test mounting component (1) is equipped with a pusher (5), which is used to drive the sliding limit component (3) and the support component (4); the sliding limit component (3) is equipped with a marker (6); The test mounting component (1) includes: a test mounting plate (101), a tension spring mounting plate (1011), and a first tension spring (102). The tension spring mounting plate (1011) is fixedly mounted on the test mounting plate (101), and the first tension spring (102) is fixedly mounted on the inner side of the tension spring mounting plate (1011). The first tension spring (102) is located inside the test mounting plate (101).

2. The impact testing device for wooden pallets according to claim 1, characterized in that: The test mounting component (1) further includes: a stop plate (103), an impact stop block (104), and an impact force sensor (105). Two stop plates (103) are fixedly mounted on the test mounting plate (101). Each of the two stop plates (103) is provided with a through groove. An impact stop block (104) is slidably mounted on the test mounting plate (101). An impact force sensor (105) is fixedly mounted on the test mounting plate (101), and the detection end of the impact force sensor (105) is attached to the bottom of the impact stop block (104).

3. The impact testing device for wooden pallets according to claim 1, characterized in that: The clamping and dispensing component (2) includes: a dispensing mounting frame (201), a sliding shaft (202), a threaded rod (203), a drive motor (204), and a lifting slider (205). The dispensing mounting frame (201) is fixedly mounted on the test mounting plate (101). The sliding shaft (202) is fixedly mounted on the dispensing mounting frame (201). The threaded rod (203) is rotatably mounted on the dispensing mounting frame (201). The drive motor (204) is fixedly mounted on the inner side of the dispensing mounting frame (201), and the threaded rod (203) is fixedly mounted on the output shaft of the drive motor (204). The lifting slider (205) is slidably mounted on the sliding shaft (202), and the lifting slider (205) is threadedly connected to the threaded rod (203).

4. The impact resistance testing device for wooden pallets according to claim 3, characterized in that: The clamping and dispensing component (2) further includes: a rotating shaft (2051), a clamping frame (206), a clamping hydraulic cylinder (207), a sliding column (208), and a friction spring (209). The rotating shaft (2051) is threadedly connected to the lifting slider (205). The clamping frame (206) is rotatably mounted on the rotating shaft (2051). The clamping hydraulic cylinder (207) is fixedly mounted on the clamping frame (206), and the output shaft of the clamping hydraulic cylinder (207) passes through the clamping frame (2051). 06); The output shaft of the clamping hydraulic cylinder (207) is used to clamp the wooden pallet; A sliding column (208) is slidably inserted on the lifting slider (205), and the end of the sliding column (208) is provided with a rubber coating; A friction spring (209) is sleeved inside the lifting slider (205), and the friction spring (209) is connected between the sliding column (208) and the lifting slider (205); The rubber coating at the end of the sliding column (208) is attached to the side of the clamping frame (206).

5. The impact testing device for wooden pallets according to claim 2, characterized in that: The sliding limit component (3) includes: a limiting sliding plate (301), a sliding block (3011), and an angle scale (302). The sliding block (3011) is fixedly installed at the bottom of the limiting sliding plate (301), and the sliding block (3011) is slidably installed on the test mounting plate (101). The end of the first tension spring (102) is connected to the sliding block (3011). Two angle scales (302) are fixedly installed on the limiting sliding plate (301).

6. The impact testing device for wooden pallets according to claim 5, characterized in that: The support member (4) includes: a lifting block (401) and a second tension spring (402). The lifting block (401) is slidably mounted on the stop plate (103), and the bottom of the lifting block (401) is a sloping structure. The end of the second tension spring (402) is fixedly mounted on the lifting block (401), and the other end of the second tension spring (402) is fixedly mounted on the test mounting plate (101). The top of the lifting block (401) is an arc-shaped structure.

7. The impact resistance testing device for wooden pallets according to claim 6, characterized in that: The propulsion component (5) includes: a control slider (501) and a propulsion hydraulic cylinder (502). The control slider (501) is slidably mounted on the test mounting plate (101). The two ends of the control slider (501) are inclined structures. The two ends of the control slider (501) are pressed and attached to the bottom inclined surfaces of the two lifting blocks (401). Two propulsion hydraulic cylinders (502) are fixedly mounted on the test mounting plate (101). The output shafts of the two propulsion hydraulic cylinders (502) are respectively fixedly mounted on the control slider (501). The control slider (501) is used to push the limit sliding plate (301).

8. The impact testing device for wooden pallets according to claim 7, characterized in that: The propulsion component (5) further includes an extrusion column (503), which is fixedly mounted on the control slider (501).

9. The impact testing device for wooden pallets according to claim 8, characterized in that: The marking component (6) includes a marking post (601) and a marking sponge (602). The marking post (601) is slidably mounted on the limiting sliding plate (301). The marking sponge (602) is fixedly mounted at the end of the marking post (601). The marking post (601) is provided with a through hole. The marking post (601) is aligned with the extrusion post (503).

10. The impact testing device for wooden pallets according to claim 9, characterized in that: The marking element (6) further includes a marking spring (603), which is sleeved on the marking post (601) and is connected between the marking post (601) and the limiting sliding plate (301).

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