Building construction steel pipe material strength detection equipment

Abstract

The invention relates to the technical field of steel pipe testing, in particular to building construction steel pipe material strength detection equipment which comprises a workbench, a detection device and a clamping mechanism, and the clamping mechanism comprises a base, two clamping structures, a guide structure and an angle adjusting structure; the two clamping structures are arranged at the upper end of the base, each clamping structure comprises a machine box, a stand column and a first clamping plate, the machine boxes are arranged above the base in parallel, the tops of the stand columns are connected with the middles of the bottoms of the machine boxes, and the first clamping plates are arranged on one sides of the machine boxes; the guiding structure comprises two guiding plates and a second driving structure, the two guiding plates are arranged at the lower ends of the two clamping structures correspondingly, guiding grooves are formed in the guiding plates, and the second driving structure is arranged between the two guiding plates; the angle adjusting structure is arranged between the base and the workbench; the base, the clamping structure, the guiding structure and the angle adjusting structure are arranged, so that it is guaranteed that the moving path of the steel pipe is not interfered, and stable discharging of the steel pipe is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe testing, and in particular to a material strength testing device for steel pipes used in construction. Background Art

[0002] In the field of construction, steel pipes are an important structural material, and their quality is directly related to the safety and durability of the project. Therefore, strength testing of steel pipe materials is a key link in ensuring the quality of the project. During large-scale testing with traditional testing devices, when testers remove broken steel pipes, new steel pipes may break, and the steel pipes may splash during the breaking process, posing a threat to the safety of testers.

[0003] The patent with announcement number CN118443428B discloses a steel pipe fatigue life measuring device, whose working principle is: when the steel pipe breaks during the test, the clamping roller releases the accumulated energy and quickly throws the broken steel pipe section to the open side of the protective cover plate; since the guide plates are arranged on both sides of the workbench and are in an inclined state, the broken steel pipe section is guided by the guide plates and slides to the predetermined collection area, thereby achieving automatic convergence and collection.

[0004] Although the above scheme applies a force along the axial direction of the steel pipe to discharge the steel pipe by the clamping roller, the broken end of the steel pipe may be deformed after the steel pipe is broken. Since the clamping roller is in close contact with the surface of the steel pipe when discharging the steel pipe, when the clamping roller contacts the broken end of the steel pipe, the movement path of the steel pipe will change, causing the steel pipe to collide with other structures. Summary of the invention

[0005] In view of the above problems, a material strength testing device for steel pipes in construction is provided. By setting a base, a clamping structure, a guiding structure and an angle adjustment structure, the moving path of the steel pipe is ensured to be free from interference, thereby achieving smooth discharge of the steel pipe.

[0006] In order to solve the problems of the prior art, the present invention provides a material strength testing device for steel pipes for construction, comprising a workbench, a testing device arranged in the middle of the workbench, and a clamping mechanism arranged on both sides of the testing device, the clamping mechanism comprising a base, two clamping structures, a guide structure and an angle adjustment structure; the base is arranged in parallel above the workbench; the two clamping structures are arranged at the upper end of the base, and are symmetrically arranged about the middle surface of the base, the clamping structure comprises a chassis, a column and a first clamping plate, the chassis is arranged in parallel above the base, the column is vertically arranged at the lower end of the chassis, the top of the column is connected to the middle of the bottom of the chassis, the first clamping plate is arranged on one side of the chassis, and the first clamping plate is connected to the chassis; the guiding structure comprises two guide plates and a second driving structure, the two guide plates are respectively arranged at the lower ends of the two clamping structures, guide grooves are opened on the guide plates, the guide grooves on the two guide plates include parallel first guide sections and second guide sections in an eight-shaped shape, the bottom of the column is arranged in the guide groove, the second driving structure is arranged between the two guide plates, and the second driving structure is connected to the two columns; the angle adjustment structure is arranged between the base and the workbench.

[0007] Preferably, the guiding structure also includes two radial guiding assemblies and two axial guiding assemblies; the two radial guiding assemblies are arranged at both ends of the base, the radial guiding assemblies include radial guiding rods and two second moving blocks, the radial guiding rods are arranged in parallel at the upper end of the base, and the two second moving blocks are both slidably arranged on the radial guiding rods; the two axial guiding assemblies are arranged between the two radial guiding assemblies, the axial guiding assemblies include two axial guiding rods and a third moving block, the two axial guiding rods are arranged in parallel, the two ends of the axial guiding rods are connected to the corresponding two second moving blocks in the two radial guiding assemblies, the third moving block is slidably connected to the two axial guiding rods, and the middle part of the column is connected to the third moving block.

[0008] Preferably, the radial guide assembly also includes a first spring, which is sleeved on the radial guide rod, and the two ends of the first spring abut against the two second moving blocks. The axial guide assembly also includes two second springs, which are respectively sleeved on the two axial guide rods, and the two ends of the second spring abut against the end of the axial guide rod and the third moving block respectively.

[0009] Preferably, the second driving structure includes a second screw rod, a first moving block, two transmission plates and two force-bearing components; the second screw rod is arranged between the two third moving blocks, and the second screw rod is connected to the base; the middle part of the first moving block is threadedly connected to the second screw rod; the two transmission plates are respectively arranged at the two ends of the first moving block, and one end of the transmission plate is axially connected to the first moving block; the two force-bearing components are respectively arranged at the opposite ends of the two first moving blocks.

[0010] Preferably, the clamping mechanism further includes a discharge clamping assembly, which includes a second clamping plate and a rubber pad, wherein the second clamping plate is arranged in the middle of the first clamping plate, and the rubber pad is arranged on one side of the second clamping plate.

[0011] Preferably, the clamping mechanism also includes four guide assemblies and two switching structures; the four guide assemblies are grouped into two, and the two guide assemblies in a group are respectively connected to the same end of the first clamping plate and the second clamping plate; the two switching structures correspond to the two groups of guide assemblies, respectively, and the switching structures are arranged in the middle of the two guide assemblies in a group.

[0012] Preferably, the clamping mechanism further includes a first driving structure, which is disposed between the two groups of guide assemblies and connected to the two switching structures.

[0013] Preferably, the angle adjustment structure includes a rotating connecting seat, a third driving structure and a supporting structure; the rotating connecting seat is arranged in the middle of the lower end of the base; the third driving structure is arranged at an end of the base away from the middle of the workbench, and the third driving structure includes two second guide pillars, a fourth moving block and a driving arm, the two second guide pillars are arranged in parallel, the second guide pillars are connected to the workbench, the two ends of the fourth moving block are slidably connected to the two second guide pillars, and the two ends of the driving arm are respectively axially connected to the base and the fourth moving block.

[0014] Preferably, the driving arm includes a second guide sleeve, a third guide column and a third spring; one end of the second guide sleeve is connected to the fourth movable block; one end of the third guide column is slidably arranged in the second guide sleeve, and the other end of the third guide column is connected to the base; the third spring is sleeved on the third guide column, and the two ends of the third spring are respectively abutted against the end of the third guide column and the end of the second guide sleeve.

[0015] Preferably, the support structure includes a fixed seat, a support block and a plurality of fourth springs; the fixed seat is installed on the workbench; the support block is slidably arranged in the fixed seat, and a plurality of accommodating grooves are opened at the bottom of the support block; and the plurality of fourth springs are respectively arranged in the plurality of accommodating grooves.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention is provided with a base, a clamping structure, a guide structure and an angle adjustment structure. Through the angle adjustment structure, the base can be adjusted to be parallel to the workbench, providing a stable support for the placement of the steel pipe. The first clamping plates in the two clamping mechanisms are far away from each other in the initial state, reserving sufficient space for the placement of the steel pipe. After the clamping mechanism is started, the second driving structure drives the column to move along the guide groove, thereby realizing the clamping of the steel pipe by the first clamping plate and ensuring the stability of the steel pipe during the detection process. After the steel pipe breaks, the angle adjustment structure adjusts the base to a position inclined toward the end of the workbench to prepare for the discharge of the steel pipe. The second driving structure applies driving forces in opposite directions to the two columns, so that the columns move in opposite directions along the guide grooves of the two guide plates respectively. In this process, the columns accelerate the movement of the steel pipe, which is conducive to the smooth discharge of the steel pipe. At the same time, after the first clamping plate is separated from the steel pipe, a certain gap is maintained between the first clamping plate and the steel pipe, avoiding the contact between the deformed broken end of the steel pipe and the first clamping plate, thereby ensuring that the moving path of the steel pipe is not interfered with and realizing the smooth discharge of the steel pipe.

[0018] 2. The present invention provides a radial guide assembly and an axial guide assembly. When the column moves along the first guide section, the third moving block slides along the axial guide rod. When the column moves along the second guide section, the column drives the second moving block to slide along the radial guide rod through the third moving block and the axial guide rod. Through the coordinated action of the radial guide assembly and the axial guide assembly, the axis of the column can always remain perpendicular to the base, thereby effectively preventing the column from tilting during the movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a stereoscopic diagram of a building construction steel pipe material strength testing device of the present invention.

[0020] Figure 2 It is a stereoscopic diagram of a base, a clamping structure, a guiding structure and an angle adjustment structure in a building construction steel pipe material strength testing device of the present invention.

[0021] Figure 3 It is a stereoscopic diagram of a base, a column and a guide structure in a building construction steel pipe material strength testing device of the present invention.

[0022] Figure 4 It is a stereoscopic diagram of a column, a guide plate, a radial guide assembly and an axial guide assembly in a building construction steel pipe material strength testing device of the present invention.

[0023] Figure 5 It is a stereoscopic diagram of a central column, a third moving block and a second driving structure of a building construction steel pipe material strength testing device of the present invention.

[0024] Figure 6It is a stereoscopic diagram of a clamping structure in a building construction steel pipe material strength testing device of the present invention.

[0025] Figure 7 It is a front view of a clamping structure in a building construction steel pipe material strength testing device of the present invention.

[0026] Figure 8 yes Figure 7 Stereoscopic cross-sectional view at AA in the middle.

[0027] Fig. 9 It is a stereoscopic diagram of a first clamping plate, a material discharge clamping assembly, a guide assembly and a switching structure in a construction steel pipe material strength detection device of the present invention.

[0028] Fig.10 It is a stereoscopic diagram of a switching structure and a first driving structure in a building construction steel pipe material strength detection device of the present invention.

[0029] Fig.11 It is a stereoscopic diagram of a base and an angle adjustment structure in a building construction steel pipe material strength detection device of the present invention.

[0030] Fig.12 It is a stereoscopic diagram of a third driving structure in a building construction steel pipe material strength detection device of the present invention.

[0031] Fig.13 The invention discloses an exploded view of a supporting structure in a building construction steel pipe material strength testing device.

[0032] The numbers in the figure are: 1, base; 2, clamping structure; 21, chassis; 22, column; 23, first clamping plate; 24, discharge clamping assembly; 241, second clamping plate; 242, rubber pad; 25, guide assembly; 251, first guide sleeve; 252, first guide column; 26, switching structure; 261, rotating shaft; 262, swing arm; 2621, first slide groove; 263, connecting shaft; 27, first driving structure; 271, first screw rod; 272, first screw sleeve; 273, first driving plate; 3, guiding structure; 31, guide plate; 311, guide groove; 32, second driving structure; 321, second screw rod; 322, first moving block; 323, transmission Moving plate; 324, force-bearing component; 3241, mounting seat; 3242, roller; 33, radial guide component; 331, radial guide rod; 332, second moving block; 333, first spring; 34, axial guide component; 341, axial guide rod; 342, third moving block; 343, second spring; 4, angle adjustment structure; 41, rotating connecting seat; 42, third driving structure; 421, second guide column; 422, fourth moving block; 423, driving arm; 4231, second guide sleeve; 4232, third guide column; 4233, third spring; 43, supporting structure; 431, fixing seat; 432, supporting block; 433, fourth spring. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] Reference Figures 1 to 13As shown: A material strength testing device for steel pipes for construction, comprising a workbench and a testing device arranged in the middle of the workbench and clamping mechanisms arranged on both sides of the testing device, the clamping mechanism comprising a base 1, two clamping structures 2, a guide structure 3 and an angle adjustment structure 4; the base 1 is arranged in parallel above the workbench; the two clamping structures 2 are arranged at the upper end of the base 1 and are symmetrically arranged about the middle surface of the base 1, the clamping structure 2 comprises a chassis 21, a column 22 and a first clamping plate 23, the chassis 21 is arranged in parallel above the base 1, the column 22 is vertically arranged at the lower end of the chassis 21, and the top of the column 22 is connected to the middle of the bottom of the chassis 21 The first clamping plate 23 is arranged on one side of the chassis 21, and the first clamping plate 23 is connected to the chassis 21; the guiding structure 3 includes two guiding plates 31 and a second driving structure 32, the two guiding plates 31 are respectively arranged at the lower ends of the two clamping structures 2, and a guiding groove 311 is opened on the guide plate 31. The guiding grooves 311 on the two guide plates 31 include parallel first guiding sections and an eight-shaped second guiding section. The bottom of the column 22 is arranged in the guiding groove 311, the second driving structure 32 is arranged between the two guide plates 31, and the second driving structure 32 is connected to the two columns 22; the angle adjustment structure 4 is arranged between the base 1 and the workbench.

[0035] When using the construction steel pipe material strength testing equipment, first adjust the base 1 to be parallel to the workbench through the angle adjustment structure 4. At this time, the first clamping plates 23 in the two clamping mechanisms are in a state of being away from each other, providing space for the placement of the steel pipe. Then, the two ends of the steel pipe to be tested are placed in the two clamping mechanisms respectively, and the clamping mechanisms are started. The second driving structure 32 starts to work and applies a driving force to the two columns 22. The columns 22 start to move under the guidance of the guide groove 311. The columns 22 first move along the second guide section in an eight-shaped shape. During this process, the columns 22 drive the chassis 21 and the first clamping plates 23 to gradually move toward the steel pipe until the columns 22 enter the parallel first guide section. After the columns 22 enter the first guide section, the first clamping plates 23 are close to the outer surface of the steel pipe. The second driving structure 32 continues to drive the columns 22 to move along the first guide section, so that the first clamping plates 23 slide along the outer surface of the steel pipe until the columns 22 move to the end of the first guide section, and the first clamping plates 23 are abutted against the steel pipe. The two first clamping plates 23 simultaneously press the steel pipe A force perpendicular to the axis of the steel pipe is applied to ensure that the steel pipe will not be subjected to tension in the axis direction during the detection process. Then the detection device works to perform strength detection on the steel pipe. When the steel pipe reaches the breaking strength, it breaks. At this time, the angle adjustment structure 4 adjusts the base 1 to a position inclined toward the end of the workbench. Subsequently, the second driving structure 32 applies driving forces in opposite directions to the two columns 22, so that the columns 22 move in opposite directions along the guide grooves 311 of the two guide plates 31, respectively. In the process of the column 22 moving along the first guide section, the movement of the steel pipe will be accelerated. When the column 22 enters the second guide section, the column 22 drives the chassis 21 and the first clamping plate 23 to gradually move away from the steel pipe, and the first clamping plate 23 separates from the steel pipe. The steel pipe continues to move with a certain initial velocity. When the broken end passes through the two first clamping plates 23, since a certain gap is maintained between the first clamping plate 23 and the steel pipe, the deformed broken end of the steel pipe will not contact the first clamping plate 23, thereby avoiding interference in the moving path of the steel pipe and achieving smooth discharge of the steel pipe.

[0036] Reference Figure 3 and Figure 4As shown: the guiding structure 3 also includes two radial guiding components 33 and two axial guiding components 34; the two radial guiding components 33 are arranged at both ends of the base 1, the radial guiding components 33 include radial guiding rods 331 and two second moving blocks 332, the radial guiding rods 331 are arranged in parallel at the upper end of the base 1, and the two second moving blocks 332 are both slidably arranged on the radial guiding rods 331; the two axial guiding components 34 are arranged between the two radial guiding components 33, the axial guiding components 34 include two axial guiding rods 341 and a third moving block 342, the two axial guiding rods 341 are arranged in parallel, the two ends of the axial guiding rod 341 are connected to the corresponding two second moving blocks 332 in the two radial guiding components 33, the third moving block 342 is slidably connected to the two axial guiding rods 341, and the middle part of the column 22 is connected to the third moving block 342.

[0037] When the second driving structure 32 drives the two columns 22 to move along the guide groove 311 respectively, the side walls of the guide groove 311 limit the column 22, while the front and rear ends of the column 22 in the moving direction are not restricted. When the two first clamping plates 23 clamp the steel pipe, the column 22 will encounter greater resistance when moving along the guide groove 311, which may cause the column 22 to tilt in the moving direction. At this time, the radial guide assembly 33 and the axial guide assembly 34 work together. When the column 22 moves along the first guide section, the movement belt of the column 22 The third moving block 342 is driven to slide along the axial guide rod 341, and when the column 22 moves along the second guide section, the column 22 drives the second moving block 332 to slide along the radial guide rod 331 through the third moving block 342 and the axial guide rod 341, ensuring that the third moving block 342 can move smoothly along the path of the guide groove 311. At the same time, the third moving block 342 can keep the column 22 in a vertical state at all times, so that the axis of the column 22 is always perpendicular to the base 1, thereby effectively preventing the column 22 from tilting during the movement.

[0038] Reference Figure 3 and Figure 4 As shown: the radial guide assembly 33 also includes a first spring 333, which is sleeved on the radial guide rod 331, and the two ends of the first spring 333 abut against the two second moving blocks 332. The axial guide assembly 34 also includes two second springs 343, which are respectively sleeved on the two axial guide rods 341, and the two ends of the second spring 343 abut against the end of the axial guide rod 341 and the third moving block 342.

[0039] When the second driving structure 32 drives the column 22 to move with stable power, the column 22 will drive the first clamping plate 23 and the clamped steel pipe to move at a constant speed, and the steel pipe cannot be continuously accelerated. Therefore, a first spring 333 is sleeved on the radial guide rod 331, and a second spring 343 is sleeved on the axial guide rod 341. When the two first clamping plates 23 clamp the steel pipe, the first spring 333 and the second spring 343 are both in a compressed state to store elastic potential energy. Once the steel pipe breaks in the clamped state, the second driving structure 32 will immediately remove the force on the two columns 22. At this time, the second spring 3 43 first begins to release its stored elastic potential energy, pushing the third moving block 342 to move along the axial guide rod 341. Since the third moving block 342 is connected to the middle part of the column 22, this movement will drive the column 22 to start accelerating. Then the first spring 333 releases its stored elastic potential energy, pushing the two second moving blocks 332 away from each other along the radial guide rod 331. Since the third moving block 342 will not be hindered when moving along the axial guide rod 341, the third moving block 342 can continue to be pushed by the elastic potential energy released by the second spring 343, thereby achieving continuous acceleration of the steel pipe.

[0040] Reference Figure 3 and Figure 5 As shown: the second driving structure 32 includes a second screw rod 321, a first moving block 322, two transmission plates 323 and two force-bearing components 324; the second screw rod 321 is arranged between the two third moving blocks 342, and the second screw rod 321 is connected to the base 1; the middle part of the first moving block 322 is threadedly connected to the second screw rod 321; the two transmission plates 323 are respectively arranged at the two ends of the first moving block 322, and one end of the transmission plate 323 is axially connected to the first moving block 322; the two force-bearing components 324 are respectively arranged at the opposite ends of the two first moving blocks 322, and the force-bearing components 324 include a mounting seat 3241 and a plurality of rollers 3242, the mounting seat 3241 is connected to the first moving block 322, and the plurality of rollers 3242 are equidistantly arranged on the mounting seat 3241.

[0041] In the initial state, the two transmission plates 323 are located at the lower end of the first moving block 322. When the column 22 moves to the end of the second guide section of the guide groove 311, the two transmission plates 323 rotate 90 degrees respectively, and their ends overlap with the outermost roller 3242 in the corresponding force-bearing component 324. Then the second screw rod 321 starts to rotate, driving the first moving block 322 to move axially along the second screw rod 321, thereby driving the two transmission plates 323 to move synchronously. When the ends of the transmission plate 323 contact the rollers 3242 in the two force-bearing components 324 respectively, the two third moving blocks 342 are driven to move along their respective axial guide rods 341, and the two The third moving blocks 342 will also approach each other under the action of the radial guide rod 331. During this process, the rollers 3242 roll along the transmission plate 323, causing the number of rollers 3242 in contact with the transmission plate 323 to gradually increase. When the two first clamping plates 23 successfully clamp the steel pipe, all the rollers 3242 are in contact with the transmission plate 323. After the steel pipe is disconnected, the two transmission plates 323 are reset, and the force on the two force-bearing components 324 disappears. At this time, the second spring 343 releases its stored elastic potential energy, pushing the third moving block 342 to move quickly, thereby realizing the rapid reset of the third moving block 342 and improving work efficiency and response speed.

[0042] Reference Figure 6 , Figure 7 and Figure 8 As shown, the clamping mechanism further includes a discharge clamping assembly 24 , which includes a second clamping plate 241 and a rubber pad 242 . The second clamping plate 241 is arranged in the middle of the first clamping plate 23 , and the rubber pad 242 is arranged on one side of the second clamping plate 241 .

[0043] During the discharge process of the broken steel pipe, the first clamping plate 23 needs to apply a force along the axial direction of the steel pipe. This force relies on the static friction generated between the first clamping plate 23 and the steel pipe to realize the movement of the steel pipe. If the friction between the two is insufficient, relative sliding may occur, resulting in the inability to effectively drive the steel pipe. By setting the discharge clamping assembly 24, when the steel pipe is broken into two parts, the second clamping plate 241 moves toward the steel pipe until the rubber pad 242 on the second clamping plate 241 contacts the surface of the steel pipe. Subsequently, the second clamping plate 241 continues to apply pressure toward the steel pipe on the rubber pad 242, causing the rubber pad 242 to deform under continuous squeezing. Since the friction coefficient between the rubber pad 242 and the steel pipe is large, when the second clamping plate 241 drives the steel pipe to be discharged, the rubber pad 242 and the steel pipe can effectively resist relative sliding, thereby ensuring the smooth discharge of the steel pipe.

[0044] Reference Figure 8 and Fig. 9As shown: the clamping mechanism also includes four guide components 25 and two switching structures 26; the four guide components 25 are each grouped into two, and the two guide components 25 in one group are respectively connected to the same end of the first clamping plate 23 and the second clamping plate 241, and the guide component 25 includes a first guide sleeve 251 and a first guide column 252, the first guide sleeve 251 is arranged in the chassis 21, the first guide column 252 is slidably arranged in the first guide sleeve 251, and one end of the first guide column 252 extends out of the chassis 21; the two switching structures 26 correspond to the two groups respectively. The guide assembly 25, and the switching structure 26 are arranged in the middle of two guide assemblies 25 in a group, the switching structure 26 includes a rotating shaft 261, a swing arm 262 and two connecting shafts 263, the rotating shaft 261 is connected to the chassis 21, the middle of the swing arm 262 is connected to the rotating shaft 261, and the swing arm 262 is provided with two first sliding grooves 2621 symmetrical about the rotating shaft 261, the two connecting shafts 263 are respectively connected to the two first guide pillars 252, and the two connecting shafts 263 are respectively slidably arranged in the two first sliding grooves 2621.

[0045] The steel pipe is placed between the two clamping structures 2, and the first clamping plate 23 and the discharge clamping assembly 24 in the clamping structure 2 move toward the steel pipe at the same time, reducing the distance between the first clamping plate 23 and the discharge assembly and the steel pipe. Then the two switching structures 26 work at the same time, and the swing arm 262 rotates around the axis of the rotating shaft 261. The swing arm 262 and the two connecting shafts 263 slide relative to each other. The swing arm 262 applies a force toward the steel pipe to the first guide column 252 connected to the first clamping plate 23 through one of the first sliding grooves 2621, so that the first clamping plate 23 presses against the steel pipe, and the swing arm 262 Through another first slide groove 2621, a force is applied to the first guide column 252 connected to the second clamp plate 241 to move away from the steel pipe, so that the second clamp plate 241 is away from the steel pipe. After the steel pipe breaks, the swing arm 262 rotates in the opposite direction around the axis of the rotating shaft 261, and the first clamp plate 23 and the second clamp plate 241 move in opposite directions, so that the second clamp plate 241 and the rubber pad 242 are pressed against the steel pipe, thereby realizing the switching of the force on the steel pipe between the first clamp plate 23 and the second clamp plate 241, avoiding the setting of two sets of drivers to respectively deal with the first clamp plate 23 and the second clamp plate 241.

[0046] Reference Figure 8 and Fig.10As shown: the clamping mechanism also includes a first driving structure 27, which is arranged between the two groups of guide components 25, and the first driving structure 27 is connected to the two switching structures 26, the first driving structure 27 includes a first screw rod 271, a first screw sleeve 272 and two first driving plates 273, the first screw rod 271 is parallel to the first guide column 252, both ends of the first screw rod 271 are connected to the chassis 21, the first screw sleeve 272 is threadedly connected to the first screw rod 271, and the two first driving plates 273 are arranged on both sides of the first screw sleeve 272, and the two ends of the first driving plate 273 are respectively axially connected to the first screw sleeve 272 and the end of the swing arm 262.

[0047] Since the two guide assemblies 25 connected to the second clamping plate 241 are located between the two guide assemblies 25 connected to the first clamping plate 23, the working directions of the switching structure 26 in the two groups of guide assemblies 25 are opposite. When the second clamping plate 241 is needed to clamp the steel pipe, the first screw rod 271 starts to rotate, driving the first screw sleeve 272 to move along the axial direction of the screw rod. As the first screw sleeve 272 moves, the two first driving plates 273 at both ends thereof respectively push the two swing arms 262 to rotate in opposite directions. The two swing arms 262 therefore drive the two ends of the first clamping plate 23 and the two ends of the second clamping plate 241 to move synchronously, thereby realizing the second clamping plate 241 to translate toward the steel pipe, so that the force of the second clamping plate 241 can act vertically on the steel pipe.

[0048] Reference Figure 2 and Fig.11 As shown: the angle adjustment structure 4 includes a rotating connecting seat 41, a third driving structure 42 and a supporting structure 43; the rotating connecting seat 41 is arranged in the middle of the lower end of the base 1; the third driving structure 42 is arranged at an end of the base 1 away from the middle of the workbench, and the third driving structure 42 includes two second guide pillars 421, a fourth moving block 422 and a driving arm 423, the two second guide pillars 421 are arranged in parallel, the second guide pillars 421 are connected to the workbench, the two ends of the fourth moving block 422 are slidably connected to the two second guide pillars 421, and the two ends of the driving arm 423 are respectively axially connected to the base 1 and the fourth moving block 422.

[0049] In the process of handling the fracture of the steel pipe, firstly, the two clamping structures 2 work together to drive the steel pipe to be discharged in the horizontal direction. In the part where the clamping structure 2 clamps the steel pipe, the clamping structure 2 can offset the gravity of the steel pipe. However, after the clamping structure 2 is separated from the steel pipe, the steel pipe will no longer be constrained by the clamping force, but will start to fall under the action of gravity. The broken end of the steel pipe may contact the clamping structure 2, causing potential damage. By setting an angle adjustment structure 4, specifically including a rotating connecting seat 41, a third driving structure 42 and a supporting structure 43, in a non-clamping state, the base 1 is set in an inclined position by rotating the connecting seat 41. When the clamping structure 2 is ready to clamp the steel pipe, the third driving structure 42 is started, which is connected to the steel pipe through two parallel second guides. The sliding connection between the column 421 and the fourth movable block 422, and the axial connection between the driving arm 423, the base 1 and the fourth movable block 422, exert a force on one end of the base 1, and this force causes the base 1 to rotate around the rotating connecting seat 41 until the other end of the base 1 contacts the supporting structure 43. At this time, the base 1 reaches a horizontal state, which provides conditions for the stable clamping of the steel pipe. After the steel pipe breaks, the third driving structure 42 starts again and drives the base 1 to rotate in the opposite direction until the initial inclined state is restored. During this process, the steel pipe is in an inclined position due to the inclination of the base 1, and the horizontal movement distance of its broken end is significantly reduced, thereby effectively avoiding the risk of the steel pipe colliding with the clamping structure 2 due to the drop of gravity.

[0050] Reference Fig.11 and Fig.12 As shown: the driving arm 423 includes a second guide sleeve 4231, a third guide column 4232 and a third spring 4233; one end of the second guide sleeve 4231 is connected to the fourth moving block 422; one end of the third guide column 4232 is slidably arranged in the second guide sleeve 4231, and the other end of the third guide column 4232 is connected to the base 1; the third spring 4233 is sleeved on the third guide column 4232, and the two ends of the third spring 4233 are respectively abutted against the end of the third guide column 4232 and the end of the second guide sleeve 4231.

[0051] After the steel pipe breaks, the third driving structure 42 needs to drive the base 1 to rotate in order to tilt the base 1, resulting in an interruption in the process of discharging the steel pipe. Therefore, the driving arm 423 is configured to be a second guide sleeve 4231, a third guide column 4232 and a third spring 4233. During the movement of the fourth moving block 422 along the two second guide columns 421, the second guide sleeve 4231 is pushed to move along the third guide column 4232, and the third spring 4233 is compressed. When the third spring 4233 cannot be compressed, the force applied by the fourth moving block 422 to the second guide sleeve 4231 is transmitted to the third guide column 4232. The guide column 4232 pushes the base 1 to rotate. When the clamping structure 2 on the base 1 clamps the steel pipe, the two ends of the steel pipe are fixed by the clamping structure 2, so that the two bases 1 can maintain balance. At this time, the fourth moving block 422 is reset along the second guide column 421, and the third spring 4233 releases elastic potential energy to push the second guide sleeve 4231 to move along the third guide column 4232, so that the driving arm 423 loses its supporting force on the base 1. After the steel pipe breaks, the steel pipe loses balance, and only one side of the base 1 is stressed, so that the steel pipe can quickly rotate to the side without stress after it breaks, making the discharge process of the steel pipe smoother.

[0052] Reference Fig.11 and Fig.13 As shown: the support structure 43 includes a fixed seat 431, a support block 432 and a plurality of fourth springs 433; the fixed seat 431 is installed on the workbench; the support block 432 is slidably set in the fixed seat 431, and a plurality of accommodating grooves are opened at the bottom of the support block 432; and the plurality of fourth springs 433 are respectively set in the plurality of accommodating grooves.

[0053] During the process of the base 1 rotating to the horizontal direction, the base 1 contacts the support block 432, pushing the support block 432 to move toward the inside of the fixed seat 431, and all the fourth springs 433 of the support block 432 and the base 1 are compressed and store elastic potential energy. After the steel pipe breaks, all the fourth springs 433 immediately release the elastic potential energy, pushing the support block 432 to slide out of the fixed seat 431. The support block 432 will exert an upward force on one side of the base 1, thereby increasing the rotation response speed of the base 1.

[0054] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A material strength testing device for steel pipes for construction, comprising a workbench, a testing device arranged in the middle of the workbench, and clamping mechanisms arranged on both sides of the testing device, characterized in that: The clamping mechanism comprises a base (1), two clamping structures (2), a guiding structure (3) and an angle adjustment structure (4); The base (1) is arranged parallel to the top of the workbench; Two clamping structures (2) are arranged at the upper end of the base (1) and are symmetrically arranged with respect to the middle surface of the base (1). The clamping structure (2) comprises a chassis (21), a column (22) and a first clamping plate (23). The chassis (21) is arranged parallel to the upper part of the base (1). The column (22) is arranged vertically at the lower end of the chassis (21). The top of the column (22) is connected to the middle of the bottom of the chassis (21). The first clamping plate (23) is arranged on one side of the chassis (21), and the first clamping plate (23) is connected to the chassis (21). The guide structure (3) comprises two guide plates (31) and a second drive structure (32); the two guide plates (31) are respectively arranged at the lower ends of the two clamping structures (2); a guide groove (311) is provided on the guide plates (31); the guide grooves (311) on the two guide plates (31) comprise parallel first guide sections and an eight-shaped second guide section; the bottom of the column (22) is arranged in the guide groove (311); the second drive structure (32) is arranged between the two guide plates (31), and the second drive structure (32) is connected to the two columns (22); The angle adjustment structure (4) is arranged between the base (1) and the workbench.

2. A construction steel pipe material strength testing device according to claim 1, characterized in that: The guide structure (3) further comprises two radial guide assemblies (33) and two axial guide assemblies (34); Two radial guide assemblies (33) are arranged at two ends of the base (1), the radial guide assembly (33) comprises a radial guide rod (331) and two second moving blocks (332), the radial guide rod (331) is arranged in parallel at the upper end of the base (1), and the two second moving blocks (332) are both slidably arranged on the radial guide rod (331); The two axial guide assemblies (34) are arranged between the two radial guide assemblies (33), and the axial guide assemblies (34) include two axial guide rods (341) and a third moving block (342). The two axial guide rods (341) are arranged in parallel, and the two ends of the axial guide rods (341) are connected to the two corresponding second moving blocks (332) in the two radial guide assemblies (33). The third moving block (342) is slidably connected to the two axial guide rods (341), and the middle part of the column (22) is connected to the third moving block (342).

3. A construction steel pipe material strength testing device according to claim 2, characterized in that: The radial guide assembly (33) further comprises a first spring (333), the first spring (333) being sleeved on the radial guide rod (331), and the two ends of the first spring (333) being in contact with the two second moving blocks (332). The axial guide assembly (34) further comprises two second springs (343), the two second springs (343) being sleeved on the two axial guide rods (341), and the two ends of the second spring (343) being in contact with the end of the axial guide rod (341) and the third moving block (342), respectively.

4. The material strength testing equipment for steel pipes for construction according to claim 1 is characterized in that: The second driving structure (32) comprises a second screw rod (321), a first moving block (322), two transmission plates (323) and two force-bearing components (324); The second screw rod (321) is arranged between the two third moving blocks (342), and the second screw rod (321) is connected to the base (1); The middle portion of the first moving block (322) is threadedly connected to the second screw rod (321); Two transmission plates (323) are respectively arranged at two ends of the first moving block (322), and one end of the transmission plate (323) is axially connected to the first moving block (322); The two force-bearing components (324) are respectively arranged at opposite ends of the two first moving blocks (322).

5. The material strength testing equipment for steel pipes for construction according to claim 1 is characterized in that: The clamping mechanism also includes a discharge clamping assembly (24), which includes a second clamping plate (241) and a rubber pad (242). The second clamping plate (241) is arranged in the middle of the first clamping plate (23), and the rubber pad (242) is arranged on one side of the second clamping plate (241).

6. A construction steel pipe material strength testing device according to claim 5, characterized in that: The clamping mechanism also includes four guide components (25) and two switching structures (26); The four guide assemblies (25) are grouped into two at a time, and the two guide assemblies (25) in one group are respectively connected to the same end of the first clamping plate (23) and the second clamping plate (241); The two switching structures (26) correspond to the two groups of guide components (25) respectively, and the switching structure (26) is arranged in the middle of the two guide components (25) in one group.

7. The material strength testing equipment for steel pipes for construction according to claim 6 is characterized in that: The clamping mechanism also includes a first driving structure (27), which is arranged between the two groups of guide components (25), and the first driving structure (27) is connected to the two switching structures (26).

8. The material strength testing equipment for steel pipes for construction according to claim 1 is characterized in that: The angle adjustment structure (4) comprises a rotating connection seat (41), a third driving structure (42) and a supporting structure (43); The rotating connection seat (41) is arranged in the middle of the lower end of the base (1); The third driving structure (42) is arranged at one end of the base (1) away from the middle of the workbench, and the third driving structure (42) comprises two second guide pillars (421), a fourth moving block (422) and a driving arm (423), the two second guide pillars (421) are arranged in parallel, the second guide pillars (421) are connected to the workbench, the two ends of the fourth moving block (422) are slidably connected to the two second guide pillars (421), and the two ends of the driving arm (423) are respectively axially connected to the base (1) and the fourth moving block (422).

9. The material strength testing equipment for steel pipes for construction according to claim 8, characterized in that: The driving arm (423) comprises a second guide sleeve (4231), a third guide post (4232) and a third spring (4233); One end of the second guide sleeve (4231) is connected to the fourth moving block (422); One end of the third guide column (4232) is slidably disposed in the second guide sleeve (4231), and the other end of the third guide column (4232) is connected to the base (1); The third spring (4233) is sleeved on the third guide post (4232), and two ends of the third spring (4233) are respectively abutted against the end of the third guide post (4232) and the end of the second guide sleeve (4231).

10. The material strength testing equipment for steel pipes for construction according to claim 8, characterized in that: The supporting structure (43) comprises a fixing seat (431), a supporting block (432) and a plurality of fourth springs (433); The fixing seat (431) is installed on the workbench; The support block (432) is slidably disposed in the fixing seat (431), and a plurality of accommodating grooves are provided at the bottom of the support block (432); A plurality of fourth springs (433) are respectively arranged in a plurality of accommodating grooves.

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