Strength testing device for rubber fender

Abstract

The invention relates to the technical field of rubber fenders, in particular to a strength testing device for a rubber fender, which comprises a shell, a base is arranged at the bottom of the shell, a propping plate and a telescopic press are respectively mounted at two ends of the base, and the telescopic press is used for carrying out extrusion test on the rubber fender; two mounting columns are arranged on the side, facing the telescopic press machine, of the abutting plate side by side at intervals, the rubber fender is located between the two mounting columns, a rectangular groove is formed in each mounting column, a sliding block is slidably mounted in each rectangular groove, and a connecting column used for being connected with the end of the rubber fender is fixedly mounted on each sliding block; the side face of each installation column is fixedly provided with a telescopic piece used for driving the corresponding sliding block to move up and down. An L-shaped limiting plate is fixedly mounted on the end face, away from the abutting plate, of each mounting column. According to the invention, the use scene that the inflatable rubber fender is hoisted on the side surface of a wharf can be simulated, and the strength of the rubber fender can be tested more truly.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber fenders, and particularly to a strength testing device for rubber fenders. Background Art

[0002] Rubber fenders are commonly used anti-collision and buffering devices in ports, docks, and ships. The strength testing of rubber fenders is a crucial step to ensure that they can effectively absorb impact energy, resist environmental erosion, and maintain long-term durability during actual use. Common rubber fenders usually include: D-type rubber fenders, V-type rubber fenders, cylindrical rubber fenders, etc. Part of the cylindrical rubber fenders is called an inflatable fender (inflatable rubber fender), which is inflated internally during use, and uses gas compression to buffer the impact of the hull. In the process of testing the buffering strength of inflatable rubber fenders in the prior art, it is usually necessary to place the inflatable rubber fender on a test platform, and then move the telescopic press downward to make the telescopic press squeeze the inflatable rubber fender. However, this testing method cannot simulate the usage state of the inflatable rubber fender when it is installed on a dock or a port (when installed on a dock or a port, the inflatable rubber fender will roll up or down when being impacted, and is hoisted at both ends on the side of the dock or port). This strength testing method is not conducive to observing the strength of the inflatable rubber fender during actual use. Summary of the Invention

[0003] Technical Problem to be Solved Aiming at the above-mentioned shortcomings of the prior art, the present invention provides a strength testing device for rubber fenders, which can effectively solve the problem that in the process of testing the buffering strength of inflatable rubber fenders in the prior art, it is usually necessary to place the inflatable rubber fender on a test platform, and then move the telescopic press downward to make the telescopic press squeeze the inflatable rubber fender. However, this testing method cannot simulate the usage state of the inflatable rubber fender when it is installed on a dock or a port, and this strength testing method is not conducive to observing the strength of the inflatable rubber fender during actual use.

[0004] Technical Solution To achieve the above object, the present invention is realized through the following technical solutions: The present invention provides a strength testing device for rubber fenders, including a housing, with a base provided at the bottom. Two ends of the base are respectively installed with a resisting plate and a telescopic press. The resisting plate is used for installing and placing the rubber fender, and the telescopic press is used for squeezing and testing the rubber fender. On the side of the backing plate facing the telescopic press, two mounting posts are arranged side by side at intervals, the rubber fender is located between the two mounting posts, a rectangular groove is provided on each mounting post, a slider is slidably mounted inside the rectangular groove, a connecting post for connecting with the end of the rubber fender is fixedly mounted on the slider, and a telescopic member for driving the slider to move up and down is fixedly mounted on the side of each mounting post; Wherein, an L-shaped limiting plate is fixedly mounted on the end face of each mounting post away from the backing plate, and the L-shaped limiting plate is used to limit the rubber fender between the mounting post and the L-shaped limiting plate.

[0005] Further, a support plate is fixedly mounted above the telescopic member, one end of the support plate is inserted into the rectangular groove, a first elastic member is arranged above the support plate, and the slider is fixedly mounted above the first elastic member.

[0006] Further, the side of the backing plate away from the telescopic press below is rotatably connected to the base through a rotating connection part, two wedge-shaped limiting plates are arranged on the base, the two wedge-shaped limiting plates are respectively located at both ends of the backing plate, a support groove for clamping on the backing plate is arranged on the end face of the two wedge-shaped limiting plates facing the backing plate, and the two wedge-shaped limiting plates are slidably connected to the base in the length direction of the backing plate.

[0007] Further, a guiding block is arranged on the base along the length direction of the backing plate, and the bottom of the wedge-shaped limiting plate is slidably connected to the guiding block.

[0008] Further, a push plate is arranged at the telescopic end of the telescopic press, a guide rail for guiding the push plate to move towards the rubber fender is arranged on the base, guide plates are arranged on both sides of the push plate, guide grooves are arranged on the guide plates, and guide shafts for sliding in the guide grooves are arranged on the wedge-shaped limiting plates. After the push plate moves towards the rubber fender to a specified position, the guide grooves drive the wedge-shaped limiting plates to clamp on both sides of the backing plate through the guide shafts.

[0009] Further, extrusion plates are installed at intervals on the side of the push plate away from the telescopic press, the extrusion plates are used to directly contact the rubber fender, the extrusion plates are connected to the push plate through second elastic members, two rotating plates for limiting the distance between the extrusion plates reaching the push plate are arranged on both sides of the push plate, and a release assembly for driving one ends of the two rotating plates to approach or move away from each other is arranged on the side of the push plate away from the extrusion plates.

[0010] Further, the middle of the rotating plate is rotatably connected to the push plate, a clamping block is arranged on the inner side of the end of the rotating plate facing the extrusion plate, the clamping block is vertically installed on the rotating plate, and a clamping groove for the clamping block to slide into is arranged on the side of the extrusion plate.

[0011] Further, the release component includes two inclined rods symmetrically arranged in a V-shaped distribution. The mutually remote ends of the two inclined rods are respectively rotatably connected to the ends of the two rotating plates remote from the pressing plate. The upper parts of the two inclined rods are rotatably connected to each other. Vertical rods are arranged at the lower ends of the two inclined rods. Electromagnetic blocks are fixedly installed at the lower ends of the two vertical rods. During the energization of the two electromagnetic blocks, the lower ends of the two vertical rods are driven to move away from each other.

[0012] Further, a guiding sliding shaft is fixedly installed inside the rectangular groove of the mounting post. The guiding sliding shaft is used to guide the up-and-down movement of the slider.

[0013] Beneficial effects The technical solution provided by the present invention has the following beneficial effects compared with the known public technologies: 1. In the present invention, by arranging a pressing plate on the base and arranging two mounting posts at intervals on the pressing plate, during the installation process, the rubber fender can be installed between two adjacent mounting posts. At the same time, since a slider is arranged inside the mounting post and a telescopic member is arranged to control the up-and-down movement of the slider, during the test, the rubber fender on the side of the pressing plate can simulate the use scenario of the inflated rubber fender hoisted on the side of the dock, and more realistically test the strength of the rubber fender.

[0014] 2. In the present invention, since an L-shaped limiting plate is arranged on the side of the mounting post, during the use process, the L-shaped limiting plate can limit the rubber fender on the connecting post. When it is necessary to remove the rubber fender, it can be realized by contracting the telescopic member and sliding down to the opening below the L-shaped limiting plate, which can more efficiently complete the installation or disassembly of the rubber fender and increase the efficiency of the strength test of the rubber fender.

[0015] 3. In the present invention, since a telescopic member is arranged to drive the up-and-down movement of the rubber fender, during the test, the telescopic member can be used to drive the up-and-down movement of the rubber fender, which can simulate the use scenario of impact hitting from above or below the rubber fender, further enrich the content of the strength test of the rubber fender, and more comprehensively understand the strength situation of the rubber fender.

[0016] 4. In the present invention, by rotatably installing the pressing plate on the base, it is more convenient to rotate the pressing plate during the installation or disassembly of the rubber fender, so that the side of the pressing plate with the rubber fender installed is exposed, which can more conveniently install or disassemble the rubber fender. In addition, by arranging wedge-shaped limiting plates on both sides of the pressing plate, the position of the pressing plate can be conveniently fixed during the strength test of the rubber fender, avoiding rotation or position deviation of the pressing plate during the process of bearing impact. Description of the drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is an exploded view of the overall structure of the bottom plate and the wedge-shaped limiting plate of the present invention; Figure 4 It is a schematic diagram of the overall structure of the bottom plate of the present invention; Figure 5 It is a top view of the present invention; Figure 6 It is a schematic diagram of the overall structure of the extrusion plate installed on the push plate of the present invention; Figure 7 It is a schematic diagram of the back structure of the push plate of the present invention; Figure 8 It is a side view of the push plate of the present invention.

[0019] The reference numerals in the figure respectively represent: 1. Outer shell; 11. Base; 12. Rotating connection part; 13. Wedge-shaped limiting plate; 131. Guide block; 132. Connecting plate; 133. Guide shaft; 14. Telescopic press; 15. Guide rail; 16. Push plate; 17. Rotating plate; 171. Clamping block; 18. Guide plate; 1801. Guide groove; 2. Bottom plate; 21. Mounting post; 22. Slide block; 221. Connecting post; 23. First elastic member; 24. Support plate; 25. Telescopic member; 26. L-shaped limiting plate; 3. Rubber fender; 4. Extrusion plate; 401. Card slot; 41. Second elastic member; 5. Release assembly; 51. Tilt rod; 52. Vertical rod; 53. Electromagnetic block. Detailed implementation manners

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0021] The present invention will be further described below in conjunction with embodiments.

[0022] The dynamic performance test of the rubber fender usually includes impact energy absorption test (simulating ship collision by releasing the extrusion plate 4, measuring the energy absorbed by the rubber fender 3 (unit: kJ / m³) and the reaction force value), resilience test (evaluating the recovery speed of the rubber fender 3 after being impacted to ensure that the rubber fender 3 can still maintain its shape and performance after being collided by the extrusion plate 4 multiple times), and dynamic fatigue test (applying periodic load using the telescopic press 14 to observe the performance attenuation of the rubber fender 3 under repeated compression).

[0023] Therefore, an embodiment of the present invention provides a strength test device for rubber fenders, the purpose of which is at least to conveniently simulate the installation and use scenarios of the inflated rubber fender, conduct strength tests on the inflated rubber fender under the simulated use scenarios, and more intuitively see the connection between the test data and the use state of the inflated rubber fender.

[0024] Embodiment: A strength test device for rubber fenders, as Figure 1 - Figure 4 shown, includes a housing 1, a base 11 is provided at the bottom, two end plates 2 and a telescopic press 14 are respectively installed at both ends of the base 11, the end plate 2 is used for installing and placing the rubber fender 3, and the telescopic press 14 is used for conducting extrusion tests on the rubber fender 3; On the side of the end plate 2 facing the telescopic press 14, two mounting columns 21 are arranged side by side at intervals. The rubber fender 3 is located between the two mounting columns 21. Each mounting column 21 is provided with a rectangular groove, a slider 22 is slidably installed inside the rectangular groove, and a connecting column 221 for connecting with the end of the rubber fender 3 is fixedly installed on the slider 22. A telescopic member 25 for driving the slider 22 to move up and down is fixedly installed on the side of each mounting column 21; Wherein, an L-shaped limiting plate 26 is fixedly installed on the end face of each mounting column 21 away from the end plate 2, and the L-shaped limiting plate 26 is used to limit the rubber fender 3 between the mounting column 21 and the L-shaped limiting plate 26.

[0025] In the present invention, by arranging the butt plate 2 on the base 11 and arranging two mounting posts 21 on the butt plate 2 at intervals, the rubber fender 3 can be conveniently installed between two adjacent mounting posts 21 during the installation process. At the same time, since a slider 22 is arranged inside the mounting post 21, and a telescopic member 25 is arranged to control the up and down movement of the slider 22, the rubber fender 3 on the side of the butt plate 2 can simulate the use scenario of the inflatable rubber fender being hoisted on the side of the dock during the test process, so as to more realistically test the strength of the rubber fender 3. In addition, since an L-shaped limiting plate 26 is arranged on the side of the mounting post 21, the L-shaped limiting plate 26 can limit the rubber fender 3 on the connecting post 221 during use. When the rubber fender 3 needs to be removed, it can be achieved by contracting the telescopic member 25 and sliding downward to the opening below the L-shaped limiting plate 26, so that the installation or removal of the rubber fender 3 can be completed more efficiently, and the efficiency of the strength test of the rubber fender 3 is increased.

[0026] In addition, since the telescopic member 25 is provided to drive the rubber fender 3 to move up and down, during the test, the rubber fender 3 can be driven to move up and down by the telescopic member 25, and the use scenario of the impact from the top or bottom of the rubber fender 3 can be simulated, which can further enrich the content of the strength test of the rubber fender 3 and more comprehensively understand the strength of the rubber fender 3.

[0027] It should be noted that both ends of the rubber fender 3 are provided with connection ports, and the connection ports are rotatably connected to the ends of the rubber fender 3 .

[0028] Furthermore, if Figure 3 As shown, a support plate 24 is fixedly installed above the telescopic member 25 , one end of the support plate 24 is inserted into the rectangular groove, a first elastic member 23 is arranged above the support plate 24 , and the slider 22 is fixedly installed above the first elastic member 23 .

[0029] Among them, by arranging a support plate 24 inside the rectangular groove and arranging a first elastic member 23 (a coil spring can be selected) above the support plate 24, the rubber fender 3 can move up and down when subjected to impact, which is more in line with the use state of the rubber fender 3 during use and can further simulate the use scenario of the rubber fender 3.

[0030] Furthermore, if Figure 2 and Figure 3 As shown, the side of the lower part of the support plate 2 away from the telescopic press 14 is rotatably connected to the base 11 through a rotating connection part 12, and two wedge-shaped limit plates 13 are provided on the base 11, and the two wedge-shaped limit plates 13 are respectively located at the two ends of the support plate 2, and the end surfaces of the two wedge-shaped limit plates 13 facing the support plate 2 are provided with support grooves clamped on the support plate 2, and the two wedge-shaped limit plates 13 are slidably connected to the base 11 in the length direction of the support plate 2.

[0031] Among them, by rotatably mounting the bottom plate 2 on the base 11, it is more convenient to expose the side of the bottom plate 2 with the fender 3 during the installation or disassembly of the fender 3 by rotating the bottom plate 2, which makes it more convenient to install or disassemble the fender 3. In addition, by arranging wedge-shaped limit plates 13 on both sides of the bottom plate 2, the position of the bottom plate 2 can be conveniently fixed during the strength test of the fender 3, preventing the bottom plate 2 from rotating or shifting in position during the impact.

[0032] Furthermore, as Figure 3 shown, a guide block 131 is arranged on the base 11 along the length direction of the bottom plate 2, and the bottom of the wedge-shaped limit plate 13 is slidably connected to the guide block 131. By arranging the guide block 131 on the base 11, the wedge-shaped limit plate 13 can be conveniently moved during the whole test process, so that while the wedge-shaped limit plate 13 provides good support for the bottom plate 2, it can also move away from the bottom plate 2 conveniently when the bottom plate 2 needs to be rotated.

[0033] Furthermore, as Figure 5 and Figure 6 shown, a push plate 16 is arranged at the telescopic end of the telescopic press 14, a guide rail 15 for guiding the push plate 16 to move towards the fender 3 is arranged on the base 11, guide plates 18 are arranged on both sides of the push plate 16, a guide groove 1801 is arranged on the guide plate 18, and a guide shaft 133 that slides inside the guide groove 1801 is arranged on the wedge-shaped limit plate 13. After the push plate 16 moves towards the fender 3 to a specified position, the guide groove 1801 drives the wedge-shaped limit plate 13 to be stuck on both sides of the bottom plate 2 through the guide shaft 133.

[0034] Among them, by arranging guide plates 18 on both sides of the push plate 16 and arranging a guide groove 1801 on the guide plate 18, the guide groove 1801 includes a vertical part and an inclined part. The vertical part is located near the push plate 16 for guiding the wedge-shaped limit plate 13 to closely approach the bottom plate 2, and the inclined part is used to guide the wedge-shaped limit plate 13 to move towards or away from the bottom plate 2. When it is necessary to disassemble the fender 3 on the bottom plate 2, by driving the push plate 16 to move in a direction away from the fender 3 through the telescopic press 14, the guide plate 18 can drive the wedge-shaped limit plate 13 to move away from both sides of the bottom plate 2, making it convenient to rotate the bottom plate 2 to expose the whole fender 3.

[0035] It should be noted that a connecting plate 132 is arranged on the wedge-shaped limit plate 13, and the guide shaft 133 is rotatably mounted on the connecting plate 132.

[0036] Furthermore, as Figure 6 and Figure 7As shown, an extrusion plate 4 is installed at intervals on the side of the push plate 16 away from the telescopic press 14. The extrusion plate 4 is used to directly contact the rubber fender 3. The extrusion plate 4 is connected to the push plate 16 through a second elastic member 41. Two rotating plates 17 for restricting the distance between the extrusion plates 4 to reach the push plate 16 are arranged on both sides of the push plate 16. A release assembly 5 for driving one end of the two rotating plates 17 to approach or move away from each other is arranged on the side of the push plate 16 away from the extrusion plate 4.

[0037] Among them, by arranging the extrusion plate 4 on the push plate 16 and connecting the extrusion plate 4 to the push plate 16 through the second elastic member 41 (a spiral spring can be selected), during use, the extrusion plate 4 can be fixed by the rotating plate 17 close to the push plate 16. After the push plate 16 moves close to the side of the rubber fender 3, the release assembly 5 drives the rotating plate 17 to rotate, so that the rotating plate 17 releases the extrusion plate 4, allowing the extrusion plate 4 to accelerate towards the rubber fender 3, simulating the use scenario of the rubber fender 3 bearing impact loads, and testing the strength of the rubber fender 3 under the state of bearing impact loads.

[0038] Further, as Figure 5 and Figure 6 shown, the middle part of the rotating plate 17 is rotatably connected to the push plate 16. A clamping block 171 is arranged on the inner side of one end of the rotating plate 17 facing the extrusion plate 4. The clamping block 171 is vertically installed on the rotating plate 17. A clamping groove 401 for the clamping block 171 to slide into is arranged on the side of the extrusion plate 4.

[0039] Among them, by arranging multiple rows of clamping blocks 171 on the rotating plate 17, during the test, the extrusion plate 4 can be limited by clamping the clamping block 171 in the clamping groove 401, and the use scenario of the impact load hitting the rubber fender 3 can be simulated.

[0040] Further, as Figure 7 and Figure 8 shown, the release assembly 5 includes two inclined rods 51 symmetrically arranged in a V-shaped distribution. The mutually remote ends of the two inclined rods 51 are respectively rotatably connected to one end of the two rotating plates 17 away from the extrusion plate 4. The upper parts of the two inclined rods 51 are rotatably connected to each other. Vertical rods 52 are arranged at the lower ends of the two inclined rods 51. Electromagnetic blocks 53 are fixedly installed at the lower ends of the two vertical rods 52. When the two electromagnetic blocks 53 are energized, the lower ends of the two vertical rods 52 are driven to move away from each other.

[0041] Among them, by symmetrically arranging two inclined rods 51, in the normal state, two electromagnetic blocks 53 on two vertical rods 52 are close to each other and adsorbed. When it is necessary to hold the pressing plate 4, opposite currents can be applied to the two electromagnetic blocks 53 to make the two electromagnetic blocks 53 attract each other, so that the ends of the two rotating plates 17 away from the pressing plate 4 approach each other, achieving the purpose of releasing the pressing plate 4.

[0042] Furthermore, a guiding slide shaft is fixedly installed inside the rectangular groove of the mounting post 21. The guiding slide shaft is used to guide the up and down movement of the slider 22. By arranging the guiding slide shaft inside the rectangular groove, the up and down movement of the guiding slider 22 can be stabilized, and the fender 3 can move up and down more stably.

[0043] Working principle: When it is necessary to detect the fender 3, first rotate the bottom plate 2 to the state where the mounting post 21 faces upward, and drive the slider 22 to contract through the telescopic member 25, so that the slider 22 slides to the opening of the L-shaped limiting plate 26. At this time, the two ends of the fender 3 can be conveniently sleeved on the connecting post 221 for fixation. Then, extend the telescopic member 25 to drive the slider 22 to move upward, so that the two ends of the fender 3 are restricted inside the L-shaped limiting plate 26. Then, adjust the bottom plate 2 to the vertical state, and move the telescopic press 14 towards the bottom plate 2, so that the guiding plate 18 guides the wedge-shaped limiting plates 13 on both sides of the bottom plate 2 to approach and hold the bottom plate 2. Finally, drive the telescopic press 14 to continue approaching the bottom plate 2, and the push plate 16 on the telescopic press 14 squeezes the fender 3 for strength testing.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A strength testing device for a rubber fender, characterized in that: include: The outer shell (1) has a base (11) at the bottom, and a support plate (2) and a telescopic press (14) are respectively installed at both ends of the base (11), the support plate (2) is used to install and place the rubber fender (3), and the telescopic press (14) is used to perform an extrusion test on the rubber fender (3); Two mounting columns (21) are arranged side by side and spaced apart on one side of the abutment plate (2) facing the telescopic press (14); the rubber fender (3) is located between the two mounting columns (21); each mounting column (21) is provided with a rectangular groove; a slider (22) is slidably mounted inside the rectangular groove; a connecting column (221) for connecting to an end of the rubber fender (3) is fixedly mounted on the slider (22); and a telescopic member (25) for driving the slider (22) to move up and down is fixedly mounted on the side of each mounting column (21); Wherein, an L-shaped limiting plate (26) is fixedly mounted on the end surface of each mounting column (21) away from the abutment plate (2), and the L-shaped limiting plate (26) is used to limit the rubber fender (3) between the mounting column (21) and the L-shaped limiting plate (26).

2. A strength testing device for a rubber fender according to claim 1, characterized in that: A support plate (24) is fixedly mounted above the telescopic member (25), one end of the support plate (24) is inserted into the rectangular groove, a first elastic member (23) is arranged above the support plate (24), and the sliding block (22) is fixedly mounted above the first elastic member (23).

3. A strength testing device for a rubber fender according to claim 2, characterized in that: A side of the lower part of the support plate (2) away from the telescopic press (14) is rotatably connected to the base (11) via a rotatable connection portion (12); two wedge-shaped limit plates (13) are provided on the base (11); the two wedge-shaped limit plates (13) are respectively located at two ends of the support plate (2); end surfaces of the two wedge-shaped limit plates (13) facing the support plate (2) are provided with support grooves that are clamped on the support plate (2); the two wedge-shaped limit plates (13) are slidably connected to the base (11) in the length direction of the support plate (2).

4. A strength testing device for a rubber fender according to claim 3, characterized in that: A guide block (131) is provided on the base (11) along the length direction of the abutment plate (2), and the bottom of the wedge-shaped limiting plate (13) is slidably connected to the guide block (131).

5. A strength testing device for a rubber fender according to claim 4, characterized in that: The telescopic end of the telescopic press (14) is provided with a push plate (16), the base (11) is provided with a guide rail (15) for guiding the push plate (16) to move toward the rubber fender (3), guide plates (18) are provided on both sides of the push plate (16), the guide plates (18) are provided with guide grooves (1801), and the wedge-shaped limit plate (13) is provided with a guide shaft (133) sliding inside the guide groove (1801), and after the push plate (16) moves to a specified position toward the rubber fender (3), the guide groove (1801) drives the wedge-shaped limit plate (13) to be clamped on both sides of the stop plate (2) through the guide shaft (133).

6. A strength testing device for a rubber fender according to claim 5, characterized in that: An extrusion plate (4) is installed at a distance on one side of the push plate (16) away from the telescopic press (14). The extrusion plate (4) is used to directly contact the rubber fender (3). The extrusion plate (4) is connected to the push plate (16) via a second elastic member (41). Two rotating plates (17) are provided on both sides of the push plate (16) for limiting the distance between the extrusion plate (4) and the push plate (16). A release component (5) is provided on the side of the push plate (16) away from the extrusion plate (4) for driving one end of the two rotating plates (17) to move closer to or away from each other.

7. A strength testing device for a rubber fender according to claim 6, characterized in that: The middle portion of the rotating plate (17) is rotatably connected to the push plate (16); a clamping block (171) is provided on the inner side of one end of the rotating plate (17) facing the extrusion plate (4); the clamping block (171) is vertically mounted on the rotating plate (17); and a clamping groove (401) for the clamping block (171) to slide into is provided on the side surface of the extrusion plate (4).

8. A strength testing device for a rubber fender according to claim 7, characterized in that: The release assembly (5) comprises two symmetrically arranged tilting rods (51) distributed in an eight-shaped pattern, the ends of the two tilting rods (51) being away from each other are rotatably connected to the ends of the two rotating plates (17) away from the extrusion plate (4), the tops of the two tilting rods (51) are rotatably connected to each other, the lower ends of the two tilting rods (51) are each provided with a vertical rod (52), the lower ends of the two vertical rods (52) are each fixedly mounted with an electromagnetic block (53), and the two electromagnetic blocks (53) drive the lower ends of the two vertical rods (52) to move away from each other when the two electromagnetic blocks (53) are energized.

9. A strength testing device for a rubber fender according to claim 1, characterized in that: A guide sliding shaft is fixedly mounted inside the rectangular groove of the mounting column (21), and the guide sliding shaft is used to guide the sliding block (22) to move up and down.

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