Strength testing device for prefabricated cabin body shell

Abstract

The invention discloses a prefabricated cabin body shell strength testing device, which comprises an operation table, the operation table is directly arranged on the ground, limiting mechanisms are symmetrically arranged on the left side and the right side of the upper part of the operation table, and each limiting mechanism comprises a rubber plate, a limiting plate, a pushing shaft, a spring, a supporting block, a rotating rod, an electric telescopic rod and a fixing plate. Rubber plates are symmetrically arranged on the left side and the right side of the upper portion of the operation table, and limiting plates are fixedly installed on the outer sides of the rubber plates. According to the strength testing device for the prefabricated cabin body shell, the limiting mechanism is arranged, so that the cabin body shell cannot deviate in the strength testing process, the testing precision can be greatly improved, meanwhile, the cleaning mechanism is arranged, the operation table is cleaned immediately after the cabin body shell is tested, the operation table is kept clean and tidy, and the working efficiency is improved. In addition, a whole-process monitoring mechanism is arranged, a sensor is used for carrying out whole-process monitoring and video recording on the strength testing process of the cabin shell, and the detection process and result are accurately known.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated cabin body shells, and in particular to a strength testing device for prefabricated cabin body shells. Background Art

[0002] With the continuous advancement of science and technology and the continuous improvement of application needs, prefabricated cabins have been widely used and developed. Prefabricated cabins are a new type of intelligent power equipment that has emerged in recent years. They have the advantages of high efficiency, environmental protection, and convenience. They are widely used in power generation, transmission, and distribution in power systems. As a movable or fixed building structure, the cabin shell of the prefabricated cabin is an important barrier to protect the safety of internal equipment and personnel. Therefore, before the prefabricated cabin is put into use, in order to ensure the safety and reliability of its structure, the prefabricated cabin shell will be subjected to strength testing;

[0003] The existing strength testing device for the prefabricated cabin shell has the problem that there is no limit when testing the cabin shell, which will cause the cabin shell to move when the pressure block tests the cabin shell, affecting the accuracy of the test. At the same time, a large amount of fragments will be generated after the cabin shell is crushed by the pressure block. If they are not cleaned up, the operating table cannot be used for a second test. In addition, there is no full test video when the cabin shell is undergoing a strength test, and the test process and results cannot be fully known. For example, the utility model with authorization announcement number CN220473272U discloses a strength testing device, including a base, a support frame fixedly connected to the surface of the base, and a fixed support installed inside the support frame. The fixing part also includes a test component arranged on the surface of the support frame, the test component includes a U-shaped seat fixedly connected to the surface of the base, a fixed block inserted into the inner wall of the U-shaped seat, and a U-shaped block inserted into the inner wall of the U-shaped seat, the fixed block and the U-shaped block are fixedly connected to the U-shaped seat respectively, a motor 1 is fixedly installed on the surface of the U-shaped block, a threaded rod 1 is fixedly connected to the end of the output shaft of the motor 1, and the threaded rod 1 passes through the U-shaped block; it is beneficial to adjust the horizontal position of the pressure block, and it is convenient to measure multiple points on the surface of the top rail device. The measurement result has high credibility, which is beneficial to avoid accidental injury to the tester by the break of the top rail device and improve the safety of the detection process. However, this device has no limit when testing the cabin shell, which will cause the cabin shell to move when the pressure block is used to test the cabin shell, affecting the accuracy of the test. At the same time, the cabin shell will produce a large amount of fragments after being crushed by the pressure block. If it is not cleaned up, the operating table cannot be used for a second test. In addition, there is no full test video when the cabin shell is undergoing strength test, and it is impossible to fully know the test process and results. Therefore, we propose a strength testing device for prefabricated cabin shells to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a strength testing device for a prefabricated cabin body shell, so as to solve the problem that the strength testing device for a prefabricated cabin body shell proposed in the above-mentioned background technology does not limit the cabin body shell when testing it, which will cause the cabin body shell to move when the pressing block tests the cabin body shell, affecting the accuracy of the test. At the same time, after the cabin body shell is crushed by the pressing block, a large amount of fragments will be generated. If they are not cleaned up, the operating table cannot be used for a second test. In addition, there is no full test video when the cabin body shell is undergoing a strength test, and it is impossible to fully know the test process and results.

[0005] To achieve the above object, the present invention provides the following technical solution: a strength testing device for a prefabricated cabin shell, comprising:

[0006] An operating table, the operating table being directly placed on the ground;

[0007] Also includes:

[0008] The limiting mechanism is symmetrically arranged on the left and right sides of the upper part of the operating table, wherein the limiting mechanism comprises a rubber plate, a limiting plate, a driving shaft, a spring, a support block, a rotating rod, an electric telescopic rod and a fixed plate, and the rubber plate is symmetrically arranged on the left and right sides of the upper part of the operating table, and the limiting plate is fixedly installed on the outer side of the rubber plate, and the driving shaft is installed on the outer side of the limiting plate, and the driving shaft is slidably arranged on the inner side of the support block;

[0009] A cleaning mechanism is symmetrically arranged on the left and right sides of the upper middle part of the operating table, wherein the cleaning mechanism includes a stabilizing frame, a threaded rod, a limiting rod, a sliding block, a mounting frame, a bolt and a cleaning brush; a stabilizing frame is symmetrically arranged on the left and right sides of the upper middle part of the operating table, a fixed shaft is fixedly connected to the outer side of the stabilizing frame, a fixed frame is fixedly connected to the outer side of the fixed shaft, a threaded rod is rotatably installed inside the stabilizing frame, a sliding block is threadedly connected to the outer side of the threaded rod, and a motor is connected to the rear end of the threaded rod.

[0010] Preferably, a rubber pad is provided in the middle of the operating table, a shell body is placed above the rubber pad, and a rubber plate is tightly fitted on the outer side of the shell body.

[0011] Preferably, a spring is provided on the outer side of the driving shaft, and a rotating rod is tightly fitted on the outer side of the driving shaft, and the rear outer side of the rotating rod is rotatably connected to the supporting block.

[0012] Preferably, the front side of the rotating rod is rotatably connected to an electric telescopic rod, and the outer side of the electric telescopic rod is rotatably connected to a fixing plate, and the lower inner side of the fixing plate is fixedly connected to the operating table.

[0013] Preferably, a snap-fit ​​groove is provided on the inner side of the middle of the operating table, and the snap-fit ​​groove is located below the outer side of the rubber pad, and a snap-fit ​​block is snap-fitted inside the snap-fit ​​groove, and a protective plate is fixedly installed above the snap-fit ​​block.

[0014] Preferably, a pressure block is provided above the shell body, and the pressure block is installed at the output end of the hydraulic rod, and a rotating frame is fixedly connected above the hydraulic rod.

[0015] Preferably, a support ring is provided on the outer side of the hydraulic rod, a sensor is installed below the support ring, and a motor is connected above the middle of the support ring.

[0016] Preferably, the rear side of the rotating frame is rotatably connected to the supporting frame, and a motor is connected to the upper right rear side of the rotating frame, and an operating table is fixedly connected to the lower side of the supporting frame.

[0017] Preferably, a limit rod is snap-connected below the sliding block, a mounting frame is installed on the inner side below the sliding block, and a cleaning brush is fixedly connected to the bottom of the mounting frame by bolts.

[0018] Preferably, an inclined plate is fixedly installed on the front side of the operating table, and the inclined plate is arranged in a sloped manner, and baffles are symmetrically installed above the left and right sides of the inclined plate, and a material receiving box is arranged below the inclined plate.

[0019] Compared with the prior art, the invention has the following beneficial effects: the strength testing device for the prefabricated cabin shell body is provided with a limit mechanism, so that the cabin shell body will not be offset during the strength test, which greatly improves the test accuracy; a cleaning mechanism is provided at the same time, and the operating table is cleaned immediately after the cabin shell body test is completed, so that the operating table is kept clean and tidy; in addition, a full-process monitoring mechanism is provided, and the cabin shell body strength test process is monitored and recorded by a sensor throughout the process, so that the detection process and results are accurately known;

[0020] 1. A rubber plate, a limit plate, a driving shaft and a spring are provided. The shell body is placed above the middle of the operating table, that is, the electric telescopic rod provided on the inner side of the fixed plate is opened, the electric telescopic rod is rotatably connected with the fixed plate, and the output end of the electric telescopic rod is connected with the front side of the rotating rod, and the rear side of the rotating rod is rotatably connected with the support block, and the support block is fixedly connected with the operating table, that is, when the electric telescopic rod is started, the output end of the electric telescopic rod can push the rotating rod to move inward to fit with the driving shaft, and the driving shaft is provided inside the support block, and a spring is provided on the outside of the driving shaft, when the rotating rod rotates inward, the driving shaft will be pushed to move inward, the spring will shrink, and a limit plate is provided on the inner side of the driving shaft, and a rubber plate is installed on the inner side of the limit plate, that is, when the driving shaft moves inward, the rubber plate will fit closely with the shell body, and the rubber plate and the limit plate will limit the shell body;

[0021] 2. A snap-fit ​​groove, a snap-fit ​​block, and a protective plate are provided. A snap-fit ​​groove is provided inside the middle upper part of the operating table. The snap-fit ​​groove is provided around the lower outer side of the rubber pad. The shell body is placed above the rubber pad. This can reduce the vibration damage to the operating table during the subsequent strength test of the shell body. At the same time, a snap-fit ​​block is inserted into the inner side of the snap-fit ​​groove. A protective plate is provided above the snap-fit ​​block. That is, when the snap-fit ​​groove is connected to the snap-fit ​​block, the protective plate will surround the rubber pad and the shell body. That is, when the shell body is tested, the protective plate can prevent the shell body from being crushed and fragments from splashing.

[0022] 3. A stabilizing frame, a threaded rod, a limit rod and a sliding block are provided. When the shell body is crushed, the protective plate is removed first, and then the motor connected to the rear side of the threaded rod inside the stabilizing frame is opened. The motor will cause the threaded rod to rotate, and a sliding block is provided on the outside of the threaded rod. The limit rod is engaged and connected to the bottom of the sliding block. In addition, a mounting frame is installed inside the bottom of the sliding block. A cleaning brush is fixedly connected to the bottom of the mounting frame by bolts. The bottom of the cleaning brush is tightly fitted to the operating table. When the shell body is crushed, the rotation of the threaded rod will cause the sliding block to drive the mounting frame, the bolts and the cleaning brush to move from the upper rear side of the operating table to the front side. The cleaning brush can clean the shell fragments above the operating table. The fragments pass through the inclined plate and move to the inside of the material collecting box for concentration. Secondly, baffles are provided on the left and right sides above the inclined plate to prevent the shell fragments from sliding out of the top of the inclined plate.

[0023] 4. A support ring, a sensor and a motor are provided. A hydraulic rod is installed above the pressing block, a support ring is provided on the outside of the hydraulic rod, a sensor is installed below the support ring, a protective box is installed outside the sensor, and a motor is connected to the upper middle part of the support ring. That is, when the hydraulic rod is opened, the output end of the hydraulic rod pushes the pressing block to move downward to squeeze the shell body, and the sensor and the motor connected to the upper middle part of the support ring are turned on. The motor can rotate the support ring and the sensor, and the sensor can monitor and record the strength test of the pressing block on the shell body in all directions, and accurately know the process and results of the test.

[0024] 5. A rotating frame and a supporting frame are provided. After long-term use, the pressure block and the sensor need to be replaced, but the pressure block and the sensor are located above the operating table, which means it is not easy to replace them. A motor is connected to the upper right rear side of the rotating frame. When the motor is turned on, the rotating frame can rotate, that is, the rotating frame will drive the components installed below to rotate 180° together. It is located on the rear side of the supporting frame, which is convenient for operators to replace the pressure block and the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a perspective structural schematic diagram of the present invention;

[0026] Figure 2 It is a perspective structural diagram of the connection between the rotating rod, the electric telescopic rod and the fixing plate of the present invention;

[0027] Figure 3 It is a perspective structural diagram of the connection between the fixing frame, the fixing shaft and the stabilizing frame of the present invention;

[0028] Figure 4 It is a perspective structural diagram of the hydraulic rod, rotating frame and supporting ring of the present invention;

[0029] Figure 5 It is a perspective cross-sectional structural schematic diagram of the present invention;

[0030] Figure 6 It is a perspective structural diagram of the connection of the stabilizing frame, the threaded rod and the limiting rod of the present invention;

[0031] Figure 7 This is a perspective structural diagram of the sliding block, mounting frame and bolt connection of the present invention;

[0032] Figure 8 It is a perspective structural diagram of the connection between the rubber plate, the limiting plate and the driving shaft of the present invention;

[0033] Fig. 9 This is a perspective structural diagram of the split connection between the operating table and the protective plate of the present invention.

[0034] In the figure: 1. operating table; 2. rubber pad; 3. shell body; 4. rubber plate; 5. limit plate; 6. driving shaft; 7. spring; 8. support block; 9. rotating rod; 10. electric telescopic rod; 11. fixing plate; 12. snap-fit ​​groove; 13. snap-fit ​​block; 14. protective plate; 15. pressure block; 16. hydraulic rod; 17. rotating frame; 18. support ring; 19. sensor; 20. motor; 21. support frame; 22. fixing frame; 23. fixing shaft; 24. stabilizing frame; 25. threaded rod; 26. limit rod; 27. sliding block; 28. mounting frame; 29. ​​bolt; 30. cleaning brush; 31. inclined plate; 32. baffle; 33. collecting box. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-Figure 9 , the present invention provides a technical solution:

[0037] Embodiment 1: In order to solve the problems existing in the prior art, the present embodiment adopts the following technical scheme: a strength testing device for a prefabricated cabin body shell, which is provided with an operating table 1, a rubber pad 2 is provided above the middle of the operating table 1, and a shell body 3 is placed above the rubber pad 2; a limiting mechanism is symmetrically arranged on the left and right sides above the operating table 1, which can limit the shell body 3, which will greatly improve the accuracy of the strength test of the shell body 3; a cleaning mechanism is arranged on the left and right sides above the middle of the operating table 1, and when the shell body 3 is tested, a lot of debris will be generated, that is, the cleaning brush 30 is moved to the front side to clean the debris above the operating table 1; a full-process monitoring mechanism is arranged above the shell body 3, and when the shell body 3 is subjected to a strength test, the whole process of the shell body 3 test can be rotated to record the whole process;First, place the shell body 3 on the rubber pad 2 set above the middle part of the operating table 1, and then open the electric telescopic rod 10 inside the fixed plate 11 symmetrically set on the left and right sides of the outside of the operating table 1, the electric telescopic rod 10 is rotatably connected to the fixed plate 11, and the output end of the electric telescopic rod 10 is rotatably connected to the rotating rod 9, and the rear side of the rotating rod 9 is rotatably connected to the support block 8, that is, when the electric telescopic rod 10 is running, the output end of the electric telescopic rod 10 can push the rotating rod 9 to rotate inward, and the rotating rod 9 will come into contact with the driving shaft 6, and the driving shaft 6 is set on the inner side of the support block 8, then the contact between the rotating rod 9 and the driving shaft 6 will push the driving shaft 6 to slide inward inside the support block 8, and the spring 7 set on the outer side of the driving shaft 6 will shrink, and When the push shaft 6 moves inward, the rubber plate 4 and the limit plate 5 installed on the inner side of the push shaft 6 will move inward, the limit plate 5 will limit the shell body 3, and the rubber plate 4 will fit tightly with the shell body 3. After the shell body 3 is fixed, the snap block 13 is inserted into the snap groove 12 opened in the upper middle part of the operating table 1. At this time, the protective plate 14 installed above the snap block 13 will protect the rubber pad 2 and the shell body 3. Then, the hydraulic rod 16, the sensor 19 and the motor 20 connected to the upper middle part of the support ring 18 are turned on. The opening of the hydraulic rod 16 can make the output end of the hydraulic rod 16 push the pressure block 15 to move downward to test the strength of the shell body 3, and the opening of the sensor 19 can test the shell body 3. The process and results are recorded. The opening of the motor 20 can make the support ring 18 and the sensor 19 rotate, and the strength test of the shell body 3 is recorded in an all-round way. When the shell body 3 is tested, it will be squeezed into many pieces by the pressing block 15. First, remove the locking block 13 and the protective plate 14, and then open the motor 20 connected to the rear side of the threaded rod 25. The motor 20 will make the threaded rod 25 rotate inside the stabilizing frame 24. The outside of the stabilizing frame 24 is provided with a fixing frame 22 and a fixing shaft 23 for support. When the threaded rod 25 rotates, the sliding block 27 will move back and forth. In addition, a mounting frame 28 is installed on the inner side below the sliding block 27. A cleaning brush 30 is fixedly installed below the mounting frame 28 by bolts 29. The cleaning brush 30 The lower part is tightly fitted with the upper surface of the operating table 1, that is, when the sliding block 27 moves forward, it can drive the mounting frame 28, the bolt 29 and the cleaning brush 30 to move together. The cleaning brush 30 can clean the debris above the operating table 1 through the inclined plate 31 to the inside of the material receiving box 33, that is, the upper surface of the operating table 1 is kept clean and tidy. The pressing block 15 will be damaged to a certain extent after long-term use, and the sensor 19 also needs to replace the battery regularly, that is, the rotating frame 17 provides support for the installation of the sensor 19 and the pressing block 15. Open the motor 20 connected to the upper right rear side of the rotating frame 17, and the rotating frame 17 will drive the components installed below to rotate 180 degrees together, located at the rear side of the support frame 21, so as to facilitate the replacement of the battery of the sensor 19 and the pressing block 15. ;

[0038] The existing strength testing device for the prefabricated cabin shell has no limit when testing the cabin shell, which will cause the cabin shell to move when the pressure block 15 is testing the cabin shell, affecting the accuracy of the test. Figure 1 , Figure 6 and Figure 8 As shown, the limiting mechanism includes a fixed plate 11 symmetrically arranged on both sides of the operating table 1. The shell body 3 is placed above the middle part of the operating table 1, that is, the electric telescopic rod 10 arranged on the inner side of the fixed plate 11 is opened, and the electric telescopic rod 10 is rotatably connected to the fixed plate 11, and the output end of the electric telescopic rod 10 is connected to the front side of the rotating rod 9, and the rear side of the rotating rod 9 is rotatably connected to the support block 8, and the support block 8 is fixedly connected to the operating table 1, that is, when the electric telescopic rod 10 is started, the output end of the electric telescopic rod 10 can push the rotating rod 9 to move inward and contact with the driving shaft 6, and the driving shaft 6 is arranged inside the support block 8, and the outer side of the driving shaft 6 is provided with a spring 7, when the rotating rod 9 rotates inward, it will push the driving shaft 6 to move inward inside the support block 8, and the spring 7 will shrink, and the inner side of the driving shaft 6 is provided with a limiting plate 5, and the inner side of the limiting plate 5 is installed with a rubber plate 4, that is, when the driving shaft 6 moves inward, the limiting plate 5 and the rubber plate 4 will limit the shell body 3.

[0039] Embodiment 2: In the existing strength testing device, after the cabin shell is crushed by the pressing block 15, a large amount of fragments will be generated. If they are not cleaned up, the operating table 1 cannot be used for secondary testing. Figure 5 , Figure 6 and Fig. 9 As shown, the cleaning mechanism includes a fixing frame 22 arranged on the left and right sides above the operating table 1, a fixing shaft 23 is installed on the inner side of the fixing frame 22, and a stabilizing frame 24 is arranged on the inner side of the fixing shaft 23. When the shell body 3 is crushed, the protective plate 14 is first removed, and then the motor 20 connected to the rear side of the threaded rod 25 inside the stabilizing frame 24 is opened. The motor 20 will cause the threaded rod 25 to rotate, and a sliding block 27 is arranged on the outer side of the threaded rod 25. The lower part of the sliding block 27 is engaged with a limit rod 26. In addition, a mounting frame 28 is installed inside the lower part of the sliding block 27. The mounting frame 2 The cleaning brush 30 is fixedly connected to the bottom of 8 by bolts 29, and the bottom of the cleaning brush 30 is fitted together with the top of the operating table 1. When the shell body 3 is crushed, the rotation of the threaded rod 25 will cause the sliding block 27 to drive the mounting frame 28, the bolts 29 and the cleaning brush 30 to move from the upper rear side of the operating table 1 to the front side. The cleaning brush 30 can clean the shell fragments above the operating table 1. The fragments will pass through the inclined plate 31 and move to the inside of the material collecting box 33 for collection. Secondly, baffles 32 are set on the left and right sides above the inclined plate 31. The baffle 32 can prevent the shell fragments from sliding out of the upper side of the inclined plate 31.

[0040] Embodiment 3: In the existing strength test device, there is no full test video during the strength test of the cabin shell, and the test process and results cannot be fully known. Figure 2 , Figure 3 and Figure 7 As shown, the full-process monitoring mechanism includes a support ring 18 arranged on the outside of the hydraulic rod 16, a sensor 19 is installed below the support ring 18, a protective box is installed outside the sensor 19, and a motor 20 is connected to the upper middle part of the support ring 18. That is, when the hydraulic rod 16 is opened, the output end of the hydraulic rod 16 pushes the pressure block 15 to move downward to squeeze the shell body 3, the sensor 19 and the motor 20 connected to the upper middle part of the support ring 18 are turned on, and the motor 20 can make the support ring 18 and the sensor 19 rotate. The sensor 19 can perform all-round strength detection of the pressure block 15 on the shell body 3 for monitoring and recording, and the detection process and results will be accurately known.

[0041] This is the entire working process of the strength testing device for the prefabricated cabin body shell, and the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0042] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0043] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A strength testing device for a prefabricated cabin shell, comprising: An operating table (1), wherein the operating table (1) is directly placed on the ground; It is characterized by further comprising: The limiting mechanism is symmetrically arranged on the left and right sides of the upper part of the operating platform (1), wherein the limiting mechanism comprises a rubber plate (4), a limiting plate (5), a driving shaft (6), a spring (7), a support block (8), a rotating rod (9), an electric telescopic rod (10) and a fixed plate (11); the rubber plate (4) is symmetrically arranged on the left and right sides of the upper part of the operating platform (1), and the limiting plate (5) is fixedly installed on the outer side of the rubber plate (4), and the driving shaft (6) is installed on the outer side of the limiting plate (5), and the driving shaft (6) is slidably arranged on the inner side of the support block (8); A cleaning mechanism is symmetrically arranged on the left and right sides of the upper middle part of the operating table (1), wherein the cleaning mechanism comprises a stabilizing frame (24), a threaded rod (25), a limiting rod (26), a sliding block (27), a mounting frame (28), a bolt (29) and a cleaning brush (30); a stabilizing frame (24) is symmetrically arranged on the left and right sides of the upper middle part of the operating table (1); a fixed shaft (23) is fixedly connected to the outer side of the stabilizing frame (24); a fixed frame (22) is fixedly connected to the outer side of the fixed shaft (23); a threaded rod (25) is rotatably installed inside the stabilizing frame (24); a sliding block (27) is threadedly connected to the outer side of the threaded rod (25); and a motor (20) is connected to the rear end of the threaded rod (25).

2. A strength testing device for a prefabricated cabin shell according to claim 1, characterized in that: A rubber pad (2) is arranged in the middle of the operating table (1), a shell body (3) is placed above the rubber pad (2), and a rubber plate (4) is tightly fitted on the outer side of the shell body (3).

3. The strength testing device for a prefabricated cabin shell according to claim 1, characterized in that: A spring (7) is arranged on the outer side of the driving shaft (6), and a rotating rod (9) is tightly fitted on the outer side of the driving shaft (6), and the outer rear side of the rotating rod (9) is rotatably connected to the supporting block (8).

4. A strength testing device for a prefabricated cabin shell according to claim 3, characterized in that: The front side of the rotating rod (9) is rotatably connected to an electric telescopic rod (10), and the outer side of the electric telescopic rod (10) is rotatably connected to a fixed plate (11), and the lower inner side of the fixed plate (11) is fixedly connected to the operating table (1).

5. The strength testing device for a prefabricated cabin shell according to claim 4, characterized in that: A snap-fit ​​groove (12) is provided on the inner side of the middle of the operating table (1), and the snap-fit ​​groove (12) is located below the outer side of the rubber pad (2). A snap-fit ​​block (13) is snap-fitted inside the snap-fit ​​groove (12), and a protective plate (14) is fixedly installed above the snap-fit ​​block (13).

6. The strength testing device for a prefabricated cabin shell according to claim 2, characterized in that: A pressure block (15) is arranged above the shell body (3), and the pressure block (15) is installed at the output end of the hydraulic rod (16), and a rotating frame (17) is fixedly connected above the hydraulic rod (16).

7. A strength testing device for a prefabricated cabin shell according to claim 6, characterized in that: A support ring (18) is arranged on the outer side of the hydraulic rod (16), a sensor (19) is installed below the support ring (18), and a motor (20) is connected above the middle of the support ring (18).

8. The strength testing device for a prefabricated cabin shell according to claim 6, characterized in that: The rear side of the rotating frame (17) is rotatably connected to the supporting frame (21), and a motor (20) is connected to the upper right rear side of the rotating frame (17), and an operating table (1) is fixedly connected to the lower side of the supporting frame (21).

9. The strength testing device for a prefabricated cabin shell according to claim 1, characterized in that: The lower part of the sliding block (27) is snap-connected with a limit rod (26), and a mounting frame (28) is installed on the inner side of the lower part of the sliding block (27), and a cleaning brush (30) is fixedly connected to the lower part of the mounting frame (28) by bolts (29).

10. The strength testing device for a prefabricated cabin shell according to claim 8, characterized in that: A sloping plate (31) is fixedly mounted on the front side of the operating table (1), and the sloping plate (31) is arranged in a sloped manner. Baffles (32) are symmetrically mounted above the left and right sides of the sloping plate (31), and a material receiving box (33) is arranged below the sloping plate (31).

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