A prefabricated assembly type retaining wall strength detection device

Abstract

The application belongs to the technical field of retaining wall production, in particular to a prefabricated retaining wall strength detection equipment, which comprises a detection table; the detection table is composed of two side supports; the inner wall of the detection table is rotationally connected with a bearing table; the inner wall of the detection table is provided with a rotating shaft matched with the bearing table, the upper surface of the detection table is fixedly installed with a mounting bracket; the surface of the mounting bracket is fixedly connected with a first hydraulic table at the middle side; therefore, the telescopic bearing column and the bearing spring in the tensile state will gradually recover to the initial state, the bearing table will gradually recover to the inclined state, and then the broken retaining wall concrete blocks will slide along the inclined surface to the inside of the recycling frame, which can not only accurately and automatically detect the strength of the retaining wall, but also automatically recycle the broken retaining wall, avoids the splashing and scattering of the concrete blocks, and reduces the workload to a certain extent.

Description

Technical Field

[0001] This invention belongs to the field of retaining wall production technology, specifically a prefabricated retaining wall strength testing device. Background Technology

[0002] Retaining walls are structures that support roadbed fill or hillside soil and prevent the fill or soil from deforming and becoming unstable. Because prefabricated retaining walls can speed up construction, reduce on-site pollution, reduce traffic interference, and achieve low-carbon construction, they are widely used in urban roadbed engineering.

[0003] Existing prefabricated retaining wall structures are mostly cast in place as a single piece of reinforced concrete, which is a rigid connection. During the process of being stressed, they have a relatively small capacity to withstand structural deformation and overload. In the event of vibration or earthquake, they are prone to overturning and structural cracks.

[0004] Therefore, after the retaining wall is produced, its strength needs to be tested. The test involves the maximum compressive force that the retaining wall test block can withstand. This process requires the use of a retaining wall strength testing device. Currently, during the compression process of the hardened retaining wall test specimens, when the retaining wall reaches its limit, the test block is prone to splashing after being subjected to force, and the workers need to clean up the broken concrete themselves, which is not conducive to the production of the retaining wall.

[0005] Therefore, the present invention provides a prefabricated retaining wall strength testing device. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A prefabricated retaining wall strength testing device, comprising a testing platform; the testing platform is composed of two side supports; a bearing platform is rotatably connected to the inner wall of the testing platform; a rotating shaft adapted to the bearing platform is provided on the inner wall of the testing platform, and the bearing platform is initially inclined; a mounting frame is fixedly installed on the upper surface of the testing platform; a first hydraulic platform is fixedly connected to the center side of the surface of the mounting frame; a testing head is installed at the telescopic end of the first hydraulic platform, and a pressure detector is installed inside the testing head. This pressure detector can detect the pressure value when the retaining wall breaks, and then the pressure value is transmitted to the controller through an external power line; a recycling rack is fixedly installed on the side surface of the testing platform, located on one side of the bearing platform; a telescopic bearing column is fixedly connected to the lower surface of the bearing platform; there are two telescopic bearing columns, arranged symmetrically; a bearing spring is sleeved on the outer surface of each telescopic bearing column; the testing head applies pressure to the retaining wall. When the pressure applied by the detection head and the weight of the retaining wall exceed the supporting force of the telescopic support column and the supporting spring, the support platform will gradually change from an inclined state to a horizontal state. The telescopic support column and the supporting spring will be in a stretched state. The pressure detector inside the detection head will transmit the pressure value of the retaining wall to the controller. As the pressure of the detection head continues to increase and reaches the strength value of the retaining wall, the retaining wall will break. At this time, the detection head will no longer apply pressure to the retaining wall, and the pressure detector will detect the strength value of the retaining wall. At the same time, the support platform will only be subjected to the pressure of the retaining wall, and the pressure of the retaining wall is less than the tension of the telescopic support column and the supporting spring. Therefore, the telescopic support column and the supporting spring in the stretched state will gradually return to the initial state, and the support platform will gradually return to the inclined state. Afterwards, the broken concrete fragments of the retaining wall will slide down the inclined surface into the recycling rack. This not only accurately detects the strength of the retaining wall automatically, but also automatically recycles the broken retaining wall, avoiding concrete fragments from splashing and scattering everywhere, thus reducing the workload.

[0008] Preferably, a telescopic rod is fixedly connected to the lower surface of the support platform; there are two telescopic rods, which are symmetrically arranged; a telescopic spring is sleeved on the outer surface of each telescopic rod; the support platform consists of a horizontal plate and an inclined plate; the horizontal plate and the inclined plate are rotatably connected; as the detection head applies pressure to the retaining wall, the horizontal plate will compress the telescopic rod and the telescopic spring, and the horizontal plate and the inclined plate will gradually tend to be horizontal, which can facilitate the placement of the retaining wall and the strength test.

[0009] Preferably, the elastic potential energy of the bearing spring is greater than that of the extension spring; the inner wall of the testing platform is provided with a rotating shaft adapted to the horizontal plate and the inclined plate; since the elastic potential energy of the bearing spring is greater than that of the extension spring, when the retaining wall breaks and the bearing spring recovers, the bearing spring has enough force to pull the inclined plate to a suitable inclined position, thereby facilitating the sliding of the broken concrete fragments of the retaining wall into the interior of the recycling rack, which can facilitate the centralized recycling of the fragments.

[0010] Preferably, a connecting frame is fixedly installed on the inner wall of the testing platform and on one side of the horizontal plate; a deflection frame is rotatably connected inside the connecting frame; a pressure column is fixedly installed on the lower surface of the horizontal plate; a limiting frame is fixedly connected to the side of the deflection frame away from the pressure column; an arc-shaped frame is fixedly installed on the side surface of the testing platform and on the side of the limiting frame; the deflection frame will deflect at a certain angle when pressed, and the deflection frame will drive the limiting frame to move closer to the arc-shaped frame, so that the limiting frame and the arc-shaped frame are in contact. At this time, the horizontal plate and the inclined plate are in a horizontal state. Under the interaction of the limiting frame and the arc-shaped frame, a certain supporting force will be provided for the horizontal plate and the inclined plate, providing sufficient supporting force for the strength testing of the prefabricated retaining wall.

[0011] Preferably, the deflection frame and the pressure column are arranged on the same plane; the upper surface of the deflection frame is provided with a circular groove that matches the pressure column; the deflection frame and the pressure column are arranged on the same plane, and the surface of the deflection frame is provided with a circular groove that matches the pressure column. When the pressure column and the deflection frame come into contact with each other, the deflection frame can be deflected easily, which is beneficial to the strength test of the retaining wall.

[0012] Preferably, the surface of the limiting frame is provided with an embedding groove; multiple embedding grooves are provided and are equally spaced on the outer surface of the limiting frame; multiple conical frames are fixedly connected to the outer surface of the arc-shaped frame; the multiple conical frames and the embedding grooves are arranged in a one-to-one correspondence; during operation, when the limiting frame and the arc-shaped frame are in contact with each other, the conical frames on the surface of the arc-shaped frame will be stuck in the embedding grooves on the surface of the limiting frame, which can limit their left and right positions, avoid the phenomenon of relative displacement between the limiting frame and the arc-shaped frame when subjected to the pressure of the detection head, and also avoid the problem of the bearing platform shifting, thereby improving the accuracy of the retaining wall during detection.

[0013] Preferably, a column frame is fixedly installed on the telescopic end of the first hydraulic platform; a second hydraulic platform symmetrically distributed is fixedly installed on the lower surface of the column frame; a pressure head is installed on the telescopic end of the second hydraulic platform; when it is necessary to detect the eccentric load on the side, the second hydraulic platform on the side is driven, and the second hydraulic platform drives the pressure head to press against the side of the retaining wall, which can detect the strength of the eccentric load on the side of the retaining wall.

[0014] Preferably, a limiting tooth is fixedly installed on the outer surface of the telescopic end of the second hydraulic platform; multiple limiting teeth are provided and are evenly spaced on the surface of the telescopic end of the second hydraulic platform; a package frame is fixedly installed on the side of the surface of the testing platform near the second hydraulic platform; an arc-shaped tooth is fixedly installed on the inner wall of the package frame; a support spring is sleeved on the outer surface of the telescopic end of the second hydraulic platform; when a single limiting tooth is stuck on the side surface of a single arc-shaped tooth, and the telescopic end of the second hydraulic platform is compressed during movement, the support spring is in a compressed state; when a single limiting tooth disengages from the side surface of a single arc-shaped tooth, the support spring in the compressed state recovers, so that the telescopic end of the second hydraulic platform will drive the pressure head to impact the side of the retaining wall at a high speed. Depending on when different limiting teeth are stuck inside different arc-shaped teeth, the strength test of the side of the retaining wall can be performed intermittently, simulating the strength test of the retaining wall under different environments, which is beneficial for the subsequent use of the retaining wall.

[0015] Preferably, the package rack is arc-shaped; multiple arc-shaped teeth are provided and are evenly spaced on the inner wall of the package rack; the limiting teeth and the arc-shaped teeth are arranged in a one-to-one correspondence; during operation, since the limiting teeth and the arc-shaped teeth are arranged in a one-to-one correspondence, when different limiting teeth and arc-shaped teeth are engaged with each other, the support spring will be intermittently compressed and restored, thereby intermittently testing the strength of the retaining wall, making it more convenient to use.

[0016] Preferably, a baffle plate is snapped onto the top of the testing platform; a slot adapted to the baffle plate is provided on the top of the testing platform; and a rubber pad is installed on the inner wall of the baffle plate.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The prefabricated retaining wall strength testing device of the present invention, when the testing head applies pressure to the retaining wall, the pressure applied by the testing head and the weight of the retaining wall itself are greater than the supporting force of the telescopic bearing column and the bearing spring. The bearing platform will gradually change from an inclined state to a horizontal state, and the telescopic bearing column and the bearing spring will be in a stretched state. The pressure detector inside the testing head will transmit the pressure value of the retaining wall to the controller. As the pressure of the testing head continues to increase and reaches the strength value of the retaining wall, the retaining wall breaks. At this time, the testing head no longer applies pressure to the retaining wall, and the pressure detector detects the strength value of the retaining wall. At the same time, the bearing platform is only subjected to the pressure of the retaining wall, and the pressure of the retaining wall is less than the tension of the telescopic bearing column and the bearing spring. Therefore, the telescopic bearing column and the bearing spring in the stretched state will gradually return to the initial state, and the bearing platform will gradually return to the inclined state. Afterwards, the broken concrete fragments of the retaining wall will slide down the inclined surface into the recycling rack. This device can not only accurately and automatically detect the strength of the retaining wall, but also automatically recycle the broken retaining wall, avoiding concrete fragments from splashing and scattering everywhere, thus reducing the workload.

[0019] 2. The prefabricated retaining wall strength testing equipment of the present invention, when the limiting frame and the arc frame are in contact with each other, the conical frame on the surface of the arc frame will be stuck in the embedded groove on the surface of the limiting frame, which can limit its left and right positions, avoid the phenomenon of relative displacement between the limiting frame and the arc frame when subjected to the pressure of the testing head, and also avoid the problem of the bearing platform shifting, thereby improving the accuracy of the retaining wall during testing.

[0020] 3. The prefabricated retaining wall strength testing equipment of the present invention, when the pressure head moves driven by the telescopic end of the second hydraulic platform, the telescopic end of the second hydraulic platform will simultaneously drive the limiting teeth to move. Since the limiting teeth and the arc-shaped teeth are interlocked, when a single limiting tooth is stuck on the side surface of a single arc-shaped tooth, and the telescopic end of the second hydraulic platform is squeezed during movement, the support spring is in a compressed state. When a single limiting tooth disengages from the side surface of a single arc-shaped tooth, the support spring in the compressed state returns to its original state. Thus, the telescopic end of the second hydraulic platform will drive the pressure head to impact the side of the retaining wall at a high speed. Depending on when different limiting teeth are stuck inside different arc-shaped teeth, the strength test of the side of the retaining wall can be performed intermittently, simulating the strength test of the retaining wall under different environments, which is beneficial to the subsequent use of the retaining wall. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a schematic diagram of the supporting platform of the present invention;

[0024] Figure 3 This is a schematic diagram of the deflection frame structure in this invention;

[0025] Figure 4 This is a schematic diagram of the arc-shaped frame and the limiting frame in this invention;

[0026] Figure 5 This is a schematic diagram of the column frame structure in this invention;

[0027] Figure 6 This is a schematic diagram of the package rack structure in this invention;

[0028] Figure 7 This is a schematic diagram of the shielding plate structure in the second embodiment of the present invention.

[0029] In the diagram: 1. Testing platform; 2. Support platform; 3. Mounting frame; 31. First hydraulic platform; 32. Testing head; 4. Recycling frame; 201. Telescopic support column; 202. Support spring; 5. Telescopic rod; 51. Telescopic spring; 203. Horizontal plate; 204. Inclined plate; 6. Connecting frame; 7. Deflection frame; 8. Pressure column; 9. Limiting frame; 10. Arc-shaped frame; 11. Embedded groove; 12. Conical frame; 13. Column-shaped frame; 14. Second hydraulic platform; 15. Pressure head; 16. Limiting tooth; 17. Wrapping frame; 18. Arc-shaped tooth; 19. Support spring; 20. Baffle plate. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] Example 1

[0032] like Figures 1 to 6 As shown in the figure, a prefabricated retaining wall strength testing device according to an embodiment of the present invention includes a testing platform 1; the testing platform 1 is composed of two side supports; a bearing platform 2 is rotatably connected to the inner wall of the testing platform 1; a rotating shaft adapted to the bearing platform 2 is provided on the inner wall of the testing platform 1, and the bearing platform 2 is inclined in the initial state; a mounting frame 3 is fixedly installed on the upper surface of the testing platform 1; a first hydraulic platform 31 is fixedly connected to the middle side of the surface of the mounting frame 3; a testing head 32 is installed on the telescopic end of the first hydraulic platform 31, and a pressure detector is set inside the testing head 32. This pressure detector can detect the pressure value when the retaining wall breaks, and then the pressure value is transmitted to the controller through an external power line; a recycling rack 4 is fixedly installed on the side surface of the testing platform 1 and located on one side of the bearing platform 2; a telescopic bearing column 201 is fixedly connected to the lower surface of the bearing platform 2; there are two telescopic bearing columns 201, which are arranged symmetrically; a bearing spring 202 is sleeved on the outer surface of each telescopic bearing column 201.

[0033] Existing prefabricated retaining wall structures are mostly cast in place as a single piece of reinforced concrete, forming a rigid connection. Under stress, they have limited capacity to withstand structural deformation and overload, making them prone to overturning and structural cracking in the event of vibration or earthquake. Therefore, after the retaining wall is produced, its strength needs to be tested to determine the maximum compressive force that the retaining wall test blocks can withstand. This process requires the use of a retaining wall strength testing device. Currently, during the compression process of the hardened retaining wall test specimens, when the retaining wall reaches its limit, the test blocks are prone to splashing, and workers need to clean up the broken concrete themselves, which is not conducive to the production of retaining walls.

[0034] When no items are placed on the surface of the support platform 2, the support platform 2 is tilted towards the recycling rack 4. When it is necessary to perform a strength test on the prefabricated retaining wall, the staff transports the prefabricated retaining wall to the surface of the support platform 2. The support platform 2 is then subjected to pressure. Afterwards, the staff starts the operation of the first hydraulic platform 31. The telescopic end of the first hydraulic platform 31 drives the detection head 32 to move towards the side closer to the retaining wall. When the detection head 32 applies pressure to the retaining wall, the pressure applied by the detection head 32 and the weight of the retaining wall itself are greater than the supporting force of the telescopic support column 201 and the support spring 202. The support platform 2 will gradually change from a tilted state to a horizontal state. The telescopic support column 201 and the support spring 202 are in a stretched state. The pressure detector inside the detection head 32 will transmit the pressure value borne by the retaining wall to the control. In the device, as the pressure of the detection head 32 increases and reaches the strength value of the retaining wall, the retaining wall breaks. At this time, the detection head 32 no longer applies pressure to the retaining wall, and the pressure detector detects the strength value of the retaining wall. Meanwhile, the support platform 2 is only subjected to the pressure of the retaining wall, and the pressure of the retaining wall is less than the tension of the telescopic support column 201 and the support spring 202. Therefore, the telescopic support column 201 and the support spring 202 in the tensile state will gradually return to their initial state, and the support platform 2 will gradually return to the tilted state. After that, the broken concrete fragments of the retaining wall will slide down the tilted surface into the recycling rack 4. This device can not only accurately detect the strength of the retaining wall automatically, but also automatically recycle the broken retaining wall, avoiding concrete fragments from splashing and scattering everywhere, thus reducing the workload.

[0035] The lower surface of the support platform 2 is fixedly connected with a telescopic rod 5; there are two telescopic rods 5, which are symmetrically arranged; each telescopic rod 5 has a telescopic spring 51 sleeved on its outer surface; the support platform 2 is composed of a horizontal plate 203 and an inclined plate 204; the horizontal plate 203 and the inclined plate 204 are rotatably connected; during operation, when the prefabricated retaining wall is placed on the surface of the support platform 2, it will first be placed on the surface of the horizontal plate 203. As the detection head 32 applies pressure to the retaining wall, the horizontal plate 203 will compress the telescopic rod 5 and the telescopic spring 51, and the horizontal plate 203 and the inclined plate 204 will gradually tend to be horizontal, which can facilitate the placement of the retaining wall and the strength test.

[0036] The elastic potential energy of the bearing spring 202 is greater than that of the extension spring 51; the inner wall of the detection platform 1 is provided with a rotating shaft that is compatible with the horizontal plate 203 and the inclined plate 204; since the elastic potential energy of the bearing spring 202 is greater than that of the extension spring 51, when the retaining wall breaks and the bearing spring 202 recovers, the bearing spring 202 has enough force to pull the inclined plate 204 to a suitable inclined position, so that the broken concrete fragments of the retaining wall can slide into the interior of the recycling rack 4, which can facilitate the centralized recycling of the fragments.

[0037] A connecting frame 6 is fixedly installed on the inner wall of the testing platform 1 and on one side of the horizontal plate 203; a deflection frame 7 is rotatably connected inside the connecting frame 6; a pressure column 8 is fixedly installed on the lower surface of the horizontal plate 203; a limiting frame 9 is fixedly connected on the side of the deflection frame 7 away from the pressure column 8; and an arc-shaped frame 10 is fixedly installed on the side surface of the testing platform 1 and on one side of the limiting frame 9.

[0038] During operation, when the horizontal plate 203 is pressed and moves, it will simultaneously drive the pressure column 8 to move. The pressure column 8 will move towards the side closer to the deflection frame 7 and press against the deflection frame 7. The deflection frame 7 will deflect at a certain angle under pressure, and the deflection frame 7 will drive the limiting frame 9 to move towards the side closer to the arc frame 10, so that the limiting frame 9 and the arc frame 10 are in contact. At this time, the horizontal plate 203 and the inclined plate 204 are in a horizontal state. Under the interaction of the limiting frame 9 and the arc frame 10, a certain supporting force will be provided for the horizontal plate 203 and the inclined plate 204, which provides sufficient supporting force for the strength testing of the prefabricated retaining wall.

[0039] The deflection frame 7 and the pressure column 8 are arranged on the same plane; the upper surface of the deflection frame 7 is provided with a circular groove that matches the pressure column 8; the deflection frame 7 and the pressure column 8 are arranged on the same plane, and the surface of the deflection frame 7 is provided with a circular groove that matches the pressure column 8. When the pressure column 8 and the deflection frame 7 come into contact with each other, the deflection frame 7 can be deflected easily, which is beneficial to the strength test of the retaining wall.

[0040] The surface of the limiting frame 9 is provided with an embedding groove 11; multiple embedding grooves 11 are provided and are equally spaced on the outer surface of the limiting frame 9; multiple conical frames 12 are fixedly connected to the outer surface of the arc frame 10; the multiple conical frames 12 and the embedding grooves 11 are arranged in a one-to-one correspondence; during operation, when the limiting frame 9 and the arc frame 10 are in contact with each other, the conical frames 12 on the surface of the arc frame 10 will be stuck in the embedding grooves 11 on the surface of the limiting frame 9, which can limit their left and right positions, avoid the relative displacement of the limiting frame 9 and the arc frame 10 when subjected to the pressure of the detection head 32, and also avoid the problem of the bearing platform 2 shifting, thus improving the accuracy of the retaining wall during detection.

[0041] A column frame 13 is fixedly installed on the telescopic end of the first hydraulic platform 31; a second hydraulic platform 14, which is symmetrically distributed, is fixedly installed on the lower surface of the column frame 13; a pressure head 15 is installed on the telescopic end of the second hydraulic platform 14.

[0042] During operation, when the first hydraulic platform 31 drives the column frame 13 and the detection head 32 to perform strength testing on the retaining wall, the first hydraulic platform 31 drives the detection head 32 to perform strength testing in the vertical direction relative to the retaining wall. At this time, the retaining wall can be tested under full load. When it is necessary to test the eccentric load on the side, the second hydraulic platform 14 on the side is driven. The second hydraulic platform 14 drives the pressure head 15 to press on the side of the retaining wall, which can perform strength testing on the eccentric load on the side of the retaining wall.

[0043] Limiting teeth 16 are fixedly installed on the outer surface of the telescopic end of the second hydraulic platform 14; multiple limiting teeth 16 are provided and are evenly spaced on the surface of the telescopic end of the second hydraulic platform 14; a wrapping frame 17 is fixedly installed on the side of the surface of the detection platform 1 near the second hydraulic platform 14; arc-shaped teeth 18 are fixedly installed on the inner wall of the wrapping frame 17; a support spring 19 is sleeved on the outer surface of the telescopic end of the second hydraulic platform 14; during operation, when the telescopic end of the second hydraulic platform 14 drives the pressure head 15 to move, the telescopic end of the second hydraulic platform 14 will simultaneously drive the limiting teeth 16 to move, due to the combination of the limiting teeth 16 and the arc-shaped teeth... The 18 teeth are interlocked. When a single limiting tooth 16 is locked on the side surface of a single arc-shaped tooth 18, and the telescopic end of the second hydraulic platform 14 is compressed during movement, the support spring 19 is in a compressed state. When the single limiting tooth 16 disengages from the side surface of the single arc-shaped tooth 18, the support spring 19 in the compressed state recovers. As a result, the telescopic end of the second hydraulic platform 14 will drive the pressure head 15 to impact the side of the retaining wall at a high speed. Depending on when different limiting teeth 16 are locked inside different arc-shaped teeth 18, the strength test of the side of the retaining wall can be performed intermittently to simulate the strength test of the retaining wall under different environments, which is beneficial to the subsequent use of the retaining wall.

[0044] The package rack 17 is arc-shaped; multiple arc-shaped teeth 18 are provided and are evenly spaced on the inner wall of the package rack 17; the limiting teeth 16 and the arc-shaped teeth 18 are arranged in a one-to-one correspondence; during operation, since the limiting teeth 16 and the arc-shaped teeth 18 are arranged in a one-to-one correspondence, when different limiting teeth 16 and arc-shaped teeth 18 are engaged with each other, the support spring 19 will be intermittently compressed and restored, thereby intermittently testing the strength of the retaining wall, making it more convenient to use.

[0045] Example 2

[0046] like Figure 7 As shown in the first embodiment, another embodiment of the present invention is as follows: a shielding plate 20 is snapped onto the top of the testing platform 1; a slot adapted to the shielding plate 20 is provided on the top of the testing platform 1; a rubber pad is installed on the inner wall of the shielding plate 20; the shielding plate 20 is provided to shield one side of the concrete, preventing concrete from splashing onto the outside of the testing platform 1, making it safer to use.

[0047] During operation, when no items are placed on the surface of the support platform 2, the support platform 2 is tilted towards the recycling rack 4. When a strength test is required on the prefabricated retaining wall, the worker transports the prefabricated retaining wall to the surface of the support platform 2. The support platform 2 is then subjected to pressure. Subsequently, the worker starts the operation of the first hydraulic platform 31. The telescopic end of the first hydraulic platform 31 drives the detection head 32 to move towards the side closer to the retaining wall. When the detection head 32 applies pressure to the retaining wall, the pressure applied by the detection head 32 and the weight of the retaining wall itself are greater than the supporting force of the telescopic support column 201 and the support spring 202. The support platform 2 will gradually change from an inclined state to a horizontal state. The telescopic support column 201 and the support spring 202 are in a stretched state. The pressure detector inside the detection head 32 transmits the pressure value borne by the retaining wall. In the controller, as the pressure of the detection head 32 increases and reaches the strength value of the retaining wall, the retaining wall breaks. At this time, the detection head 32 no longer applies pressure to the retaining wall, and the pressure detector detects the strength value of the retaining wall. Meanwhile, the support platform 2 is only subjected to the pressure of the retaining wall. Since the pressure of the retaining wall is less than the tension of the telescopic support column 201 and the support spring 202, the telescopic support column 201 and the support spring 202 in the tensile state will gradually return to their initial state, and the support platform 2 will gradually return to the tilted state. After that, the broken concrete fragments of the retaining wall will slide down the tilted surface into the recycling rack 4. This not only accurately detects the strength of the retaining wall automatically, but also automatically recycles the broken retaining wall, avoiding concrete fragments from splashing and scattering everywhere, thus reducing the workload.

[0048] When the prefabricated retaining wall is placed on the surface of the support platform 2, it will first be placed on the surface of the horizontal plate 203. As the detection head 32 applies pressure to the retaining wall, the horizontal plate 203 will compress the telescopic rod 5 and the telescopic spring 51, and the horizontal plate 203 and the inclined plate 204 will gradually tend to be horizontal, which can facilitate the placement of the retaining wall and the strength test. Since the elastic potential energy of the support spring 202 is greater than the potential energy of the telescopic spring 51, when the retaining wall breaks and the support spring 202 recovers, the support spring 202 has enough force to pull the inclined plate 204 to a suitable inclined position, so that the broken concrete fragments of the retaining wall can slide into the inside of the recycling rack 4, which can facilitate the centralized recycling of the fragments.

[0049] When the horizontal plate 203 is pressed and moves, it simultaneously drives the pressure column 8 to move. The pressure column 8 moves towards the side closer to the deflection frame 7 and presses against the deflection frame 7. The deflection frame 7 will deflect at a certain angle under pressure, and the deflection frame 7 will drive the limiting frame 9 to move towards the side closer to the arc frame 10, so that the limiting frame 9 and the arc frame 10 are in contact. At this time, the horizontal plate 203 and the inclined plate 204 are in a horizontal state. Under the interaction of the limiting frame 9 and the arc frame 10, a certain supporting force will be provided for the horizontal plate 203 and the inclined plate 204, providing sufficient supporting force for the strength testing of the prefabricated retaining wall. When the limiting frame 9 and the arc frame 10 are in contact with each other, the conical frame 12 on the surface of the arc frame 10 will be stuck in the embedded part on the surface of the limiting frame 9. In the groove 11, the left and right positions can be limited to prevent the relative displacement of the limiting frame 9 and the arc frame 10 when subjected to the pressure of the detection head 32, and also to prevent the bearing platform 2 from shifting, thus improving the accuracy of the retaining wall during testing. When the first hydraulic platform 31 drives the column frame 13 and the detection head 32 to perform strength testing on the retaining wall, the first hydraulic platform 31 drives the detection head 32 to perform strength testing from the vertical direction of the retaining wall. At this time, the retaining wall can be tested under full load. When it is necessary to test the eccentric load on the side, the second hydraulic platform 14 on the side is driven. The second hydraulic platform 14 drives the pressure head 15 to press on the side of the retaining wall, which can perform strength testing on the eccentric load on the side of the retaining wall.

[0050] When the telescopic end of the second hydraulic platform 14 drives the pressure head 15 to move, the telescopic end of the second hydraulic platform 14 will simultaneously drive the limiting tooth 16 to move. Since the limiting tooth 16 and the arc-shaped tooth 18 are interlocked, when a single limiting tooth 16 is stuck on the side surface of a single arc-shaped tooth 18, and the telescopic end of the second hydraulic platform 14 is squeezed during movement, the support spring 19 is in a squeezed state. When a single limiting tooth 16 disengages from the side surface of a single arc-shaped tooth 18, the support spring 19 in the squeezed state recovers, so that the telescopic end of the second hydraulic platform 14 will drive the pressure head 15 to impact the side of the retaining wall at a high speed. Depending on when different limiting teeth 16 are stuck inside different arc-shaped teeth 18, the strength test of the side of the retaining wall can be performed intermittently to simulate the strength test of the retaining wall under different environments, which is beneficial to the subsequent use of the retaining wall.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A strength testing device for prefabricated retaining walls, comprising a testing table (1); characterized in that: The testing platform (1) consists of two side supports; a bearing platform (2) is rotatably connected to the inner wall of the testing platform (1); a rotating shaft adapted to the bearing platform (2) is provided on the inner wall of the testing platform (1); a mounting frame (3) is fixedly installed on the upper surface of the testing platform (1); a first hydraulic platform (31) is fixedly connected to the middle side of the surface of the mounting frame (3); a testing head (32) is installed on the telescopic end of the first hydraulic platform (31); a recycling frame (4) is fixedly installed on the side surface of the testing platform (1) and on one side of the bearing platform (2); a telescopic bearing column (201) is fixedly connected to the lower surface of the bearing platform (2); there are two telescopic bearing columns (201) and they are arranged symmetrically; a bearing spring (202) is sleeved on the outer surface of each telescopic bearing column (201). The lower surface of the support platform (2) is fixedly connected with a telescopic rod (5); there are two telescopic rods (5) and they are arranged symmetrically; each telescopic rod (5) has a telescopic spring (51) sleeved on its outer surface; the support platform (2) is composed of a horizontal plate (203) and an inclined plate (204); the horizontal plate (203) and the inclined plate (204) are rotatably connected; The elastic potential energy of the bearing spring (202) is greater than that of the extension spring (51); the inner wall of the testing platform (1) is provided with a rotating shaft that is compatible with the horizontal plate (203) and the inclined plate (204).

2. The prefabricated retaining wall strength testing equipment according to claim 1, characterized in that: A connecting frame (6) is fixedly installed on the inner wall of the testing platform (1) and on one side of the horizontal plate (203); a deflection frame (7) is rotatably connected inside the connecting frame (6); a pressure column (8) is fixedly installed on the lower surface of the horizontal plate (203); a limit frame (9) is fixedly connected on the side of the deflection frame (7) away from the pressure column (8); an arc frame (10) is fixedly installed on the side surface of the testing platform (1) and on one side of the limit frame (9).

3. The prefabricated retaining wall strength testing equipment according to claim 2, characterized in that: The deflection frame (7) and the pressure column (8) are arranged on the same plane; the upper surface of the deflection frame (7) is provided with a circular groove that matches the pressure column (8).

4. The prefabricated retaining wall strength testing equipment according to claim 3, characterized in that: The surface of the limiting frame (9) is provided with an embedding groove (11); multiple embedding grooves (11) are provided and are equally spaced on the outer surface of the limiting frame (9); multiple conical frames (12) are fixedly connected to the outer surface of the arc frame (10); the multiple conical frames (12) and the embedding grooves (11) are arranged in a one-to-one correspondence.

5. The prefabricated retaining wall strength testing equipment according to claim 1, characterized in that: The first hydraulic platform (31) has a column frame (13) fixedly installed at its telescopic end; the lower surface of the column frame (13) has a second hydraulic platform (14) that is symmetrically distributed; the telescopic end of the second hydraulic platform (14) is equipped with a pressure head (15).

6. The prefabricated retaining wall strength testing equipment according to claim 5, characterized in that: Limiting teeth (16) are fixedly installed on the outer surface of the telescopic end of the second hydraulic platform (14); multiple limiting teeth (16) are provided and are arranged at equal intervals on the surface of the telescopic end of the second hydraulic platform (14); a package frame (17) is fixedly installed on the side of the surface of the detection platform (1) close to the second hydraulic platform (14); an arc-shaped tooth (18) is fixedly installed on the inner wall of the package frame (17); a support spring (19) is sleeved on the outer surface of the telescopic end of the second hydraulic platform (14).

7. The prefabricated retaining wall strength testing equipment according to claim 6, characterized in that: The shape of the package rack (17) is arc-shaped; the number of arc-shaped teeth (18) is set in multiples and is evenly arranged on the inner wall of the package rack (17); the limiting teeth (16) and the arc-shaped teeth (18) are arranged in a one-to-one correspondence.

8. The prefabricated retaining wall strength testing equipment according to claim 1, characterized in that: A baffle plate (20) is snapped onto the top of the testing platform (1); a slot adapted to the baffle plate (20) is provided on the top of the testing platform (1); a rubber pad is installed on the inner wall of the baffle plate (20).

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