Stainless steel tube compression resistance detection device and use method

Abstract

The invention relates to the technical field of stainless steel pipe performance detection. The invention discloses a stainless steel pipe compression resistance detection device and a use method, one side of the top of a base plate is provided with a water injection assembly, one side of the water injection assembly is provided with a reciprocating motion driving device, the reciprocating motion driving device comprises a driving assembly, a switching assembly and a moving assembly, the driving assembly is arranged on one side of the top of the base plate, and the switching assembly is arranged on one side of the top of the base plate; the switching assembly is arranged at the side end of the driving assembly, the moving assembly is arranged at the top of the base plate and located on one side of the water injection assembly, a detection marking device is arranged on the moving assembly, and the detection marking device comprises a mounting assembly, a marking assembly and a rotating assembly; according to the device, repeated detection is not needed, compression resistance testing can be conducted on the stainless steel pipe in an omnibearing mode, the deformation area is automatically marked at the first time when the deformation area is detected, feeding and discharging are automatically conducted on the stainless steel pipe after detection is completed, and the effect of improving the detection efficiency is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of stainless steel pipe performance detection, and in particular to a stainless steel pipe compression detection device and a use method. Background Art

[0002] Stainless steel pipe is a hollow long round pipe, which is widely used in industrial pipelines such as petroleum, chemical, medical, food, light industry, mechanical instruments, and mechanical structural components. When water is transported through stainless steel pipes, the water flow rate suddenly changes due to some external reasons, causing water hammer, which is called water hammer. When water hammer occurs, the water in the pipe will first impact the inner wall of the stainless steel pipe, and then a vacuum area will appear in the pipe. The external atmospheric pressure will exert pressure on the outer wall of the stainless steel pipe. If the pressure resistance of the pipe is poor, the impact force of the water and the external atmospheric pressure will cause the stainless steel pipe to deform, resulting in leakage. In order to avoid deformation of stainless steel pipes due to water hammer during use, the compressive strength of the stainless steel pipes needs to be tested before leaving the factory to ensure that the finished stainless steel pipes leaving the factory will not deform within the specified pressure range; In the process of testing the compressive performance of stainless steel pipes, the following problems exist: First, in the process of testing stainless steel pipes, if there are multiple deformed areas on the surface of the stainless steel pipe, it is difficult to test the multiple deformed areas of the stainless steel pipe in one test, and multiple tests are often required. The detection range is not comprehensive enough, and the deformed area needs to be manually marked when the deformed area is detected, and the detection efficiency is low. After the test is completed, the tested stainless steel pipes need to be manually unloaded, and the untested stainless steel pipes need to be manually installed for testing, which is time-consuming and labor-intensive. There is a lack of equipment that can perform compression tests on stainless steel pipes in all directions without repeated testing, and automatically mark the deformed area at the first time when the deformed area is detected, and automatically load and unload stainless steel pipes after the test is completed to improve the detection efficiency. Summary of the invention

[0003] The object of the present invention is to provide a stainless steel pipe compression testing device and a method of use to solve the problems raised in the above background technology. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A stainless steel pipe compression detection device, comprising a base plate, the base plate is arranged on a horizontal plane, a water injection assembly is arranged on one side of the top of the base plate, a driving reciprocating device is arranged on one side of the water injection assembly, the driving reciprocating device comprises a driving assembly, a switching assembly and a moving assembly, the driving assembly is arranged on one side of the top of the base plate, the switching assembly is arranged on the side end of the driving assembly, the moving assembly is arranged on the top of the base plate and the moving assembly is located on one side of the water injection assembly, a detection marking device is arranged on the moving assembly, the detection marking device comprises a mounting assembly, a marking assembly and a rotating assembly, the mounting assembly is arranged on the moving assembly, the marking assembly is provided with a plurality of marking assemblies, and the plurality of marking assemblies are evenly arranged on the mounting assembly in a circular shape, the rotating assembly is arranged on the side end of the mounting assembly, a loading and unloading device is arranged on the side of the moving assembly away from the water injection assembly, the loading and unloading device comprises a linkage assembly and a loading and unloading assembly, the linkage assembly is arranged on the top of the base plate and the linkage assembly is connected to the driving assembly, and the loading and unloading assembly is arranged on the side of the linkage assembly close to the moving assembly.

[0004] Preferably, the water injection assembly includes a mounting block, an electric push rod, a moving block, a water pump, a water injection pump and a water injection pipe, the mounting block is arranged on one side of the top of the base plate, the moving block is arranged at one end of the top of the mounting block and the bottom of the moving block is horizontally slidably connected to the top of the mounting block, the electric push rod is horizontally arranged at the top of the mounting block and the output end of the electric push rod is connected to the side end of the moving block, the water injection pipe is horizontally arranged on the top of the moving block, the end of the water injection pipe close to the electric push rod is closed and the end of the water injection pipe away from the electric push rod is open, the water pump and the water injection pump are arranged on the top of the moving block and the water pump and the water injection pump are respectively located on both sides of the water injection pipe, and the water pump and the water injection pump are respectively connected to the two sides of the water injection pipe through a one-way valve.

[0005] Preferably, the drive assembly includes a drive motor, a first connecting frame, a second connecting frame, a third connecting frame, a first bevel gear, a second bevel gear, a third bevel gear, a connecting shaft, a switching sleeve, a switching shaft sleeve, a fourth connecting frame and a fourth bevel gear, the drive motor is arranged on the top of the base plate, the first connecting frame is arranged on one side of the drive motor, the first bevel gear is rotatably arranged on one side of the first connecting frame, the output end of the drive motor is connected to the rotation connection between the first connecting frame and the first bevel gear, the second connecting frame and the third connecting frame are symmetrically arranged on both sides of the first bevel gear, the second connecting frame and the third connecting frame are adjacent to each other on one side and are rotatably arranged with the second bevel gear and the third bevel gear, and the two sides of the first bevel gear are respectively connected to the second bevel gear and the third bevel gear. The three-bevel gears are meshed, the fourth connecting frame is arranged on a side of the third connecting frame away from the second connecting frame, the connecting shaft horizontally passes through the second connecting frame, the third connecting frame and the fourth connecting frame, and the connecting shaft is rotatably connected to the fourth connecting frame, and the connecting shaft does not contact the second connecting frame, the third connecting frame, the second bevel gear and the third bevel gear. The fourth bevel gear is arranged at an end of the connecting shaft away from the second bevel gear, and a switching sleeve is provided at the center of one side adjacent to the second bevel gear and the third bevel gear. The switching shaft sleeve is arranged on the outer side of the connecting shaft and the switching shaft sleeve is horizontally slidably connected to the connecting shaft and the switching sleeve shaft is located between the two switching sleeves, and the switching shaft sleeve is meshed with the switching sleeve at the side end of the third bevel gear and the other side of the switching shaft sleeve is pre-meshed with the switching sleeve at the side end of the second bevel gear; The switching assembly includes a fifth connecting frame, a driving gear, a fifth bevel gear, a sixth connecting frame, a first connecting rod, a second connecting rod, a third connecting rod, a seventh connecting frame, a switching rod, a counterweight and a fixed frame, the fifth connecting frame is arranged on one side of the fourth connecting frame, the driving gear is rotatably arranged on the side end of the fifth connecting frame, the fifth bevel gear is arranged on one side of the fifth connecting frame and the fifth bevel gear and the driving gear are coaxially connected, one end of the first connecting rod is coaxially connected to the fifth bevel gear, and the fifth bevel gear is meshed with the fourth bevel gear, the sixth connecting frame is arranged on one side of the first connecting rod, one end of the second connecting rod is connected to the sixth The top of the connecting frame is rotatably connected, a protrusion is provided on one side of the first connecting rod and the protrusion is in the same plane as the second connecting rod, the seventh connecting frame is arranged directly below the switching sleeve, the bottom of the fixed frame is rotatably connected to the top of the seventh connecting frame, the top of the fixed frame is rotatably connected to the middle part of the switching sleeve, the switching rod is coaxially connected to the rotation connection between the fixed frame and the seventh connecting frame, the switching rod is arranged in a V shape, a counterweight is provided on the top of one end of the switching rod close to the third bevel gear, and one side of the switching rod close to the third bevel gear and one side of the lower part of the second connecting rod are rotatably connected to two ends of the third connecting rod respectively.

[0006] Preferably, the moving assembly includes a moving slide, a moving slider, a mounting frame and a driving toothed rod, the moving slide is arranged on the top of the base plate and the moving slide is located on one side of the mounting block, the moving slider is arranged on the top of the moving slide and is horizontally slidably connected thereto, a mounting frame is provided on the top of the moving slider, and an opening is provided on the side of the mounting frame close to the water injection pipe for facilitating the passage of the water injection pipe, the driving toothed rod is horizontally arranged on one side of the mounting frame, and the end of the driving toothed rod away from the mounting frame is meshed with the driving gear.

[0007] Preferably, the mounting assembly includes a sixth bevel gear and a detection sleeve, the sixth bevel gear is rotatably arranged on a side of the mounting frame away from the water injection pipe, an opening is provided at the center of the sixth bevel gear for the water injection pipe to pass through, the detection sleeve is arranged on a side of the sixth bevel gear away from the mounting frame and is arranged in a circular ring shape, the detection sleeve is connected to the sixth bevel gear concentrically, the inner diameter of the detection sleeve is consistent with the outer diameter of the stainless steel pipe, the detection sleeve is hollow, and the interior of the detection sleeve is circular and evenly arranged with a number of marking components; Each marking assembly comprises a mounting sleeve, a marking sleeve, a spring, a trigger column, a trigger rod and a marking rod, wherein the mounting sleeve is arranged inside the detection sleeve and the mounting sleeve passes through the inner side wall of the detection sleeve and is flush with the detection sleeve, the marking sleeve vertically passes through the top of the mounting sleeve and is slidably connected with it up and down, the trigger column vertically passes through the middle of the lower end of the mounting sleeve and is slidably connected with it up and down, and a spring is vertically provided between the top of the trigger column and the top of the inner side of the marking sleeve, the bottom of the trigger column is flush with the inner side wall of the detection sleeve, the trigger rod horizontally passes through the middle of the trigger column and the trigger rod is slidably connected with the middle of the mounting sleeve in the horizontal direction, the two ends of the trigger rod are provided with mirror-image inclined surfaces, the two ends of the bottom of the marking sleeve are provided with mirror-image inclined surfaces, and the two ends of the bottom of the marking sleeve are respectively slidably connected with the two ends of the trigger rod through the inclined surfaces, the marking rod is provided with two, the two marking rods are symmetrically arranged at the two ends of the bottom of the marking sleeve, the two ends of the bottom of the mounting sleeve are provided with openings, the two marking rods respectively pass through the two openings and the bottom heights of the two marking rods are slightly higher than the bottom height of the mounting sleeve, and the bottom of the marking rod is provided with a marking surface.

[0008] Preferably, the rotating assembly includes a seventh bevel gear and a rotating toothed rod, the seventh bevel gear is horizontally and rotatably arranged at the lower end of the mounting frame and the seventh bevel gear is located below the detection sleeve, the seventh bevel gear is meshed with the sixth bevel gear, the rotating toothed rod is horizontally arranged at the side end of the movable slide and the seventh bevel gear is meshed with the rotating toothed rod.

[0009] Preferably, the linkage assembly includes an eighth connecting frame, an eighth bevel gear, a linkage shaft, a ninth connecting frame, a pulley and a transmission belt, the eighth connecting frame is arranged on one side of the driving motor, the two ends of the linkage shaft are rotatably connected to the two ends of the eighth connecting frame respectively, the eighth bevel gear is vertically arranged at one end of the linkage shaft, and the eighth bevel gear is meshed with the first bevel gear, the diameter of the eighth bevel gear is twice that of the first bevel gear, the ninth connecting frame is arranged on one side of the eighth connecting frame, the pulleys are provided with two, one of which is arranged at the other end of the linkage shaft, and the other pulley is rotatably arranged at the upper end of the ninth connecting frame, and the transmission belt is sleeved on the two pulleys; The loading and unloading assembly includes a tenth connecting frame, a driving disk, a driving member, a rotating member, a protruding member, a loading disk and a sealing rod. The tenth connecting frame is arranged on one side of the eighth connecting frame, and the driving disk and the loading disk are coaxially damped and rotationally connected on both sides of the tenth connecting frame. A plurality of horizontally arranged sealing rods are evenly arranged in a circular shape on the side of the loading disk close to the movable slide, a plurality of rotating members are evenly arranged in a circular shape on the side of the driving disk close to the pulley, and the positions of the plurality of rotating members correspond one to one with the sealing rods, one end of the driving member is arranged on a side of the driving disk close to one of the rotating members, and the center of the driving member is coaxially connected with the rotating connection between the pulley and the ninth connecting frame, the protruding member is arranged on one side end of the driving member, the length of the protruding member is less than the spacing between the plurality of rotating members away from the driving member, and the length of the protruding member is longer than the spacing between a rotating member adjacent to the driving member.

[0010] Preferably, the method for using the stainless steel pipe compression testing device comprises the following steps: S1: When the device is in use, firstly, a plurality of stainless steel tubes to be tested are sequentially placed at the loading end of the loading and unloading assembly, and one end of the plurality of stainless steel tubes is sealed by the loading and unloading assembly, and one of the stainless steel tubes corresponds to the detection end position of the detection marking device, and then the other end of the stainless steel tube to be tested is sealed by the water injection assembly and a sufficient amount of water is injected according to the internal capacity of the stainless steel tube. After the water is filled, a certain amount of water is continuously injected into the interior thereof, and a period of time is waited. In this process, the compression test of the stainless steel tube is realized; S2: After a period of time, the water inside the stainless steel pipe is discharged through the water injection component and the sealing state of one end thereof is released. Then, through the cooperation between the driving component and the switching component, the detection marking device is driven to move along one end of the stainless steel pipe to the other end, and then reset to the initial position. During the movement of the detection marking device, if the marking component moves to the deformation area outside the stainless steel pipe, the marking component automatically marks the area; S3: When the detection is completed and the detection marking device is reset to the initial position, the stainless steel pipe that has been inspected is automatically transferred to an area away from the detection marking device through the cooperation of the linkage component and the loading and unloading component, and a stainless steel pipe to be inspected is automatically moved to an area corresponding to the detection end position of the detection marking device, so as to continue the compression resistance test of the stainless steel pipe.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, when the detection sleeve moves along the outside of the stainless steel pipe through the mounting frame, the inner wall of the detection sleeve is completely fitted with the outside of the stainless steel pipe. During the movement, when a deformed protrusion is generated on the outer surface of the stainless steel pipe, when the trigger column in the marking component that moves to the deformation area contacts the protrusion, the trigger column rises, the spring contracts, and drives the trigger rod to move horizontally. Under the action of the trigger rod and the side inclined surface of the marking sleeve, the marking sleeve is driven to synchronously descend a distance, and then the two marking rods are driven to descend and pass through the opening at the bottom of the mounting sleeve, so that the two marking rods contact the surface of the stainless steel pipe, thereby marking the surface of the stainless steel pipe. When the inspection is completed, the inspector determines the specific position of the deformation area of ​​the stainless steel pipe based on the position between the two marking ends, thereby achieving the effect of automatically marking the deformation area while performing pressure resistance testing on the stainless steel pipe.

[0012] In the present invention, when it is necessary to detect the stainless steel pipe, first, the detection mark device is set on the mounting frame and sleeved on one end of the outer side of the stainless steel pipe, and the driving motor is controlled to work to drive the first bevel gear to rotate. At this time, the switching sleeve is meshed with the switching sleeve on one side of the third bevel gear. The rotation of the first bevel gear drives the third bevel gear and the second bevel gear to rotate synchronously and in opposite directions. At this time, the rotation of the third bevel gear drives the switching sleeve to rotate synchronously and then drives the connecting shaft to rotate, thereby driving the fourth bevel gear and the fifth bevel gear meshing therewith to rotate, and then drives the driving gear to rotate. With the rotation of the driving gear, the driving toothed rod moves synchronously, so that the detection mark device moves along the direction from one end of the stainless steel pipe to the other end, and it is detected during the movement. As the gear rotates, the first connecting rod rotates synchronously with the center of the driving gear as the axis. When the detection mark device moves to the other end of the stainless steel tube, the protrusion at the end of the first connecting rod contacts the side end of the second connecting rod to push the second connecting rod toward the second bevel gear, and under the action of the counterweight block, the switching rod is driven to flip toward the second bevel gear, so that the switching sleeve is disengaged from the third bevel gear and engages with the switching sleeve at the side end of the second bevel gear, so that the connecting shaft starts to rotate in the opposite direction as the second bevel gear rotates, causing the driving gear to rotate in the opposite direction, thereby driving the detection mark device to move in the opposite direction along the stainless steel tube to the initial position, thereby achieving the effect of controlling the detection mark device to automatically move back and forth along the outside of the stainless steel tube once to achieve a pressure resistance test on it.

[0013] In the present invention, when the detection sleeve moves along the outside of the stainless steel pipe for pressure resistance detection and marking, as the mounting frame moves, the seventh bevel gear moves synchronously along the rotating toothed rod, thereby driving the seventh bevel gear and the sixth bevel gear to rotate, thereby driving the detection sleeve to rotate synchronously, thereby driving the multiple marking components to rotate around the outside of the stainless steel pipe while moving horizontally, thereby making the detection range of the multiple marking components on the outside of the stainless steel pipe more comprehensive, thereby improving the overall detection efficiency.

[0014] In the present invention, before inspecting the stainless steel pipe, the ends of several stainless steel pipes to be inspected are sleeved on the sealing rod at the side end of the loading disk one by one, and one end of the stainless steel pipe is sealed by the sealing rod. When the inspection sleeve reciprocates along the outer side of the stainless steel pipe for inspection, under the drive of the pulley and the transmission belt, and because the diameter of the first bevel gear is smaller than the diameter of the eighth bevel gear, the inspection sleeve reciprocates once, and the driving member drives the protruding member to rotate one circle with the center of the driving member as the axis. During the rotation of the driving member, when the inspection sleeve is reset to the initial position and away from the end of the stainless steel pipe, the protruding member contacts the adjacent rotating member and drives the loading disk to rotate a certain angle, so that the inspected stainless steel pipe rotates away from the inspection sleeve, and drives an uninspected stainless steel pipe to move to the area corresponding to the position of the inspection sleeve, so as to continuously perform pressure resistance inspection on the stainless steel pipe, thereby realizing the effect of automatic loading and unloading of the stainless steel pipe after the inspection of the stainless steel pipe is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a three-dimensional structural schematic diagram of the water injection component and the moving component in the present invention; Figure 4 It is a front view of the rotating assembly and the detection marking device in the present invention; Figure 5 is a cross-sectional view of a marking component in the present invention; Figure 6 It is a schematic diagram of the local structure of the present invention Figure 1 ; Figure 7 It is a schematic diagram of the local structure of the present invention Figure 2 ; Figure 8 It is a schematic diagram of the three-dimensional structure of the driving reciprocating movement device in the present invention; Fig. 9 It is a partial expanded schematic diagram of the driving reciprocating movement device in the present invention; Fig.10It is a schematic diagram of the three-dimensional structure of the loading and unloading device in the present invention; Fig.11 It is a schematic diagram of the partial structure of the loading and unloading components in the present invention.

[0016] In the figure: 1, base plate; 2, water injection assembly; 21, mounting block; 22, electric push rod; 23, moving block; 24, water pump; 25, water injection pump; 26, water injection pipe; 3, driving reciprocating device; 31, driving assembly; 311, driving motor; 312, first connecting frame; 313, second connecting frame; 314, third connecting frame; 315, first bevel gear; 316, second bevel gear; 317, third bevel gear; 318 , connecting shaft; 319, switching sleeve; 320, switching sleeve; 321, fourth connecting frame; 322, fourth bevel gear; 33, switching assembly; 331, fifth connecting frame; 332, driving gear; 333, fifth bevel gear; 334, sixth connecting frame; 335, first connecting rod; 336, second connecting rod; 337, third connecting rod; 338, seventh connecting frame; 339, switching rod; 340, counterweight; 341, fixed frame; 35. Moving assembly; 351. Moving carriage; 352. Moving slide block; 353. Mounting frame; 354. Driving toothed rod; 4. Detection marking device; 41. Mounting assembly; 411. Sixth bevel gear; 412. Detection sleeve; 42. Marking assembly; 421. Mounting sleeve; 422. Marking sleeve; 423. Spring; 424. Trigger column; 425. Trigger rod; 426. Marking rod; 43. Rotating assembly; 431. Seventh bevel gear Wheel; 432, rotating toothed rod; 5, loading and unloading device; 51, linkage assembly; 511, eighth connecting frame; 512, eighth bevel gear; 513, linkage shaft; 514, ninth connecting frame; 515, pulley; 516, transmission belt; 52, loading and unloading assembly; 521, tenth connecting frame; 522, driving disk; 523, driving member; 524, rotating member; 525, protruding member; 526, loading disk; 527, sealing rod. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figures 1 to 11The present invention provides a technical solution: a stainless steel pipe compression test device, comprising a base plate 1, the base plate 1 is arranged on a horizontal plane, a water injection assembly 2 is arranged on one side of the top of the base plate 1, a driving reciprocating device 3 is arranged on one side of the water injection assembly 2, the driving reciprocating device 3 comprises a driving assembly 31, a switching assembly 33 and a moving assembly 35, the driving assembly 31 is arranged on one side of the top of the base plate 1, the switching assembly 33 is arranged on the side end of the driving assembly 31, the moving assembly 35 is arranged on the top of the base plate 1 and the moving assembly 35 is located on one side of the water injection assembly 2, a detection marking device 4 is arranged on the moving assembly 35, and the detection The marking device 4 includes an installation component 41, a marking component 42 and a rotating component 43. The installation component 41 is arranged on the moving component 35. The marking component 42 is provided with a plurality of marking components 42, and the plurality of marking components 42 are evenly arranged in a circular shape on the installation component 41. The rotating component 43 is arranged at the side end of the installation component 41. A loading and unloading device 5 is provided on the side of the moving component 35 away from the water injection component 2. The loading and unloading device 5 includes a linkage component 51 and a loading and unloading component 52. The linkage component 51 is arranged on the top of the base plate 1 and the linkage component 51 is connected to the driving component 31. The loading and unloading component 52 is arranged on the side of the linkage component 51 close to the moving component 35.

[0019] In this embodiment, Figure 3 As shown, the water injection assembly 2 includes a mounting block 21, an electric push rod 22, a moving block 23, a water pump 24, a water injection pump 25 and a water injection pipe 26, wherein the mounting block 21 is arranged on one side of the top of the base plate 1, the moving block 23 is arranged at one end of the top of the mounting block 21, and the bottom of the moving block 23 is horizontally slidably connected to the top of the mounting block 21, the electric push rod 22 is horizontally arranged at the top of the mounting block 21, and the output end of the electric push rod 22 is connected to the side end of the moving block 23, the water injection pipe 26 is horizontally arranged at the top of the moving block 23, the end of the water injection pipe 26 close to the electric push rod 22 is closed, and the end of the water injection pipe 26 away from the electric push rod 22 is open, the water pump 24 and the water injection pump 25 are arranged on the top of the moving block 23, and the water pump 24 and the water injection pump 25 are respectively located on both sides of the water injection pipe 26, and the water pump 24 and the water injection pump 25 are respectively connected to the two sides of the water injection pipe 26 through a one-way valve; By controlling the electric push rod 22 to work and drive the moving block 23 to slide on the top of the mounting block 21, sliding in the direction close to the stainless steel pipe can control the open end of the water injection pipe 26 to pass through the end of the stainless steel pipe to seal it, and the water injection pump 25 is used to inject water into the stainless steel pipe to facilitate the pressure resistance test. After the test is completed, the water inside the stainless steel pipe is completely pumped out by the water pump 24, and then the electric push rod 22 is used to control the water injection pipe 26 to detach and move away from the stainless steel pipe, so as to facilitate the unloading of the stainless steel pipe after the test.

[0020] In this embodiment, Figures 6 to 9 As shown, the driving assembly 31 includes a driving motor 311, a first connecting frame 312, a second connecting frame 313, a third connecting frame 314, a first bevel gear 315, a second bevel gear 316, a third bevel gear 317, a connecting shaft 318, a switching sleeve 319, a switching shaft sleeve 320, a fourth connecting frame 321 and a fourth bevel gear 322. The driving motor 311 is arranged on the top of the base plate 1, the first connecting frame 312 is arranged on one side of the driving motor 311, the first bevel gear 315 is rotatably arranged on one side of the first connecting frame 312, the output end of the driving motor 311 is connected to the rotation connection between the first connecting frame 312 and the first bevel gear 315, the second connecting frame 313 and the third connecting frame 314 are symmetrically arranged on both sides of the first bevel gear 315, the second connecting frame 313 and the third connecting frame 314 are adjacent to each other and are rotatably provided with the second bevel gear 316 and the third bevel gear 317, and the two sides of the first bevel gear 315 are respectively connected to the second bevel gear 316 and the third bevel gear 317. 17, the fourth connecting frame 321 is arranged on the side of the third connecting frame 314 away from the second connecting frame 313, the connecting shaft 318 horizontally passes through the second connecting frame 313, the third connecting frame 314 and the fourth connecting frame 321, and the connecting shaft 318 is rotatably connected to the fourth connecting frame 321, and the connecting shaft 318 does not contact the second connecting frame 313, the third connecting frame 314, the second bevel gear 316 and the third bevel gear 317, and the fourth bevel gear 322 is arranged on the connecting shaft 318 away from the second bevel gear At one end of the wheel 316, a switching sleeve 319 is provided at the center of one side adjacent to the second bevel gear 316 and the third bevel gear 317, the switching sleeve 320 is provided on the outside of the connecting shaft 318, and the switching sleeve 320 is slidably connected with the connecting shaft 318 in the horizontal direction, and the switching sleeve 319 axis is located between the two switching sleeves 319, and the switching sleeve 320 is engaged with the switching sleeve 319 at the side end of the third bevel gear 317, and the other side of the switching sleeve 320 is pre-engaged with the switching sleeve 319 at the side end of the second bevel gear 316; The switching assembly 33 includes a fifth connecting frame 331, a driving gear 332, a fifth bevel gear 333, a sixth connecting frame 334, a first connecting rod 335, a second connecting rod 336, a third connecting rod 337, a seventh connecting frame 338, a switching rod 339, a counterweight 340 and a fixed frame 341. The fifth connecting frame 331 is arranged on one side of the fourth connecting frame 321, and the driving gear 332 is rotatably arranged on the side end of the fifth connecting frame 331. The fifth bevel gear 333 is arranged on one side of the fifth connecting frame 331 and the fifth bevel gear 333 and the driving gear 332 are coaxially connected. One end of the first connecting rod 335 is coaxially connected to the fifth bevel gear 333, and the fifth bevel gear 333 is meshed with the fourth bevel gear 322. The sixth connecting frame 334 is arranged on one side of the first connecting rod. One end of 336 is rotatably connected to the top of the sixth connecting frame 334, one side of the first connecting rod 335 is provided with a protrusion and the protrusion is in the same plane as the second connecting rod 336, the seventh connecting frame 338 is arranged directly below the switching sleeve 320, the bottom of the fixing frame 341 is rotatably connected to the top of the seventh connecting frame 338, the top of the fixing frame 341 is rotatably connected to the middle of the switching sleeve 320, the switching rod 339 is coaxially connected to the rotation connection between the fixing frame 341 and the seventh connecting frame 338, the switching rod 339 is arranged in a V shape, a counterweight block 340 is provided on the top of one end of the switching rod 339 close to the third bevel gear 317, and one side of the switching rod 339 close to the third bevel gear 317 and one side of the lower part of the second connecting rod 336 are rotatably connected to both ends of the third connecting rod 337 respectively; The moving assembly 35 includes a moving slide 351, a moving slider 352, a mounting frame 353 and a driving toothed rod 354. The moving slide 351 is arranged on the top of the base plate 1 and is located on one side of the mounting block 21. The moving slider 352 is arranged on the top of the moving slide 351 and is slidably connected with the moving slide 351 in a horizontal direction. The top of the moving slider 352 is provided with a mounting frame 353. The side of the mounting frame 353 close to the water injection pipe 26 is provided with an opening for the water injection pipe 26 to pass through. The driving toothed rod 354 is horizontally arranged on one side of the mounting frame 353, and the end of the driving toothed rod 354 away from the mounting frame 353 is meshed with the driving gear 332. When it is necessary to inspect the stainless steel pipe, first, the inspection mark device 4 is set on the mounting bracket 353 and sleeved on one end of the outer side of the stainless steel pipe, and the driving motor 311 is controlled to work to drive the first bevel gear 315 to rotate. At this time, the switching sleeve 320 is meshed with the switching sleeve 319 on one side of the third bevel gear 317. The rotation of the first bevel gear 315 drives the third bevel gear 317 and the second bevel gear 316 to rotate synchronously and in opposite directions. At this time, the rotation of the third bevel gear 317 drives the switching sleeve 320 to rotate synchronously and then drives the connecting shaft 318 to rotate, thereby driving the fourth bevel gear 322 and the fifth bevel gear 333 meshing therewith to rotate, and then drives the driving gear 332 to rotate. As the driving gear 332 rotates, the driving toothed rod 354 moves synchronously, so that the inspection mark device 4 moves along the direction from one end of the stainless steel pipe to the other end, and is inspected during the movement. As the driving gear 3 32 rotates, the first connecting rod 335 rotates synchronously with the center of the driving gear 332 as the axis. When the detection mark device 4 moves to the other end of the stainless steel pipe, the protrusion at the end of the first connecting rod 335 contacts the side end of the second connecting rod 336 to push the second connecting rod 336 toward the second bevel gear 316, and under the action of the counterweight block 340, the switching rod 339 is driven to flip toward the second bevel gear 316, so that the switching shaft sleeve 320 is disengaged from the third bevel gear 317 and engages with the switching sleeve 319 at the side end of the second bevel gear 316, so that the connecting shaft 318 starts to rotate in the opposite direction with the rotation of the second bevel gear 316, so that the driving gear 332 rotates in the opposite direction, and then drives the detection mark device 4 to move in the opposite direction along the stainless steel pipe to the initial position, thereby realizing the effect of controlling the detection mark device 4 to automatically move back and forth along the outer side of the stainless steel pipe once to realize the pressure resistance detection thereof.

[0021] In this embodiment, Figures 4 to 5 As shown, the mounting assembly 41 includes a sixth bevel gear 411 and a detection sleeve 412, the sixth bevel gear 411 is rotatably arranged on a side of the mounting frame 353 away from the water injection pipe 26, an opening is provided at the center of the sixth bevel gear 411 for the water injection pipe 26 to pass through, the detection sleeve 412 is arranged on a side of the sixth bevel gear 411 away from the mounting frame 353 and the detection sleeve 412 is arranged in a circular ring shape, the detection sleeve 412 is connected to the sixth bevel gear 411 concentrically, the inner diameter of the detection sleeve 412 is consistent with the outer diameter of the stainless steel pipe, the detection sleeve 412 is hollow, and the interior of the detection sleeve 412 is circular and evenly arranged with a plurality of marking components 42; Each marking assembly 42 includes a mounting sleeve 421, a marking sleeve 422, a spring 423, a trigger column 424, a trigger rod 425 and a marking rod 426. The mounting sleeve 421 is arranged inside the detection sleeve 412 and passes through the inner wall of the detection sleeve 412 and is flush with it. The marking sleeve 422 vertically passes through the top of the mounting sleeve 421 and is slidably connected with it up and down. The trigger column 424 vertically passes through the middle of the lower end of the mounting sleeve 421 and is slidably connected with it up and down. A spring 423 is vertically provided between the top of the trigger column 424 and the top of the marking sleeve 422. The bottom of the trigger column 424 is flush with the inner wall of the detection sleeve 412. The trigger rod 425 horizontally passes through the trigger column 424. The middle part of the hair column 424 and the trigger rod 425 are horizontally slidably connected with the middle part of the mounting sleeve 421, and the two ends of the trigger rod 425 are provided with mirror-image inclined surfaces, and the two ends of the bottom of the marking sleeve 422 are provided with mirror-image inclined surfaces, and the two ends of the bottom of the marking sleeve 422 are respectively connected with the two ends of the trigger rod 425 by inclined surfaces. There are two marking rods 426, and the two marking rods 426 are symmetrically arranged at the two ends of the bottom of the marking sleeve 422. The two ends of the bottom of the mounting sleeve 421 are provided with openings, and the two marking rods 426 pass through the two openings respectively. The bottom height of the two marking rods 426 is slightly higher than the bottom height of the mounting sleeve 421, and the bottom of the marking rod 426 is provided with a marking surface; When the detection sleeve 412 moves along the outside of the stainless steel pipe through the mounting bracket 353, the inner wall of the detection sleeve 412 is completely fitted with the outside of the stainless steel pipe. During the movement, when a deformed protrusion is generated on the outer surface of the stainless steel pipe, when the trigger column 424 in the marking component 42 that moves to the deformation area contacts the protrusion, the trigger column 424 rises, and the spring 423 contracts, driving the trigger rod 425 to move horizontally. Under the action of the trigger rod 425 and the side inclined surface of the marking sleeve 422, the marking sleeve 422 is driven to synchronously drop a distance, thereby driving the two marking rods 426 to drop through the opening at the bottom of the mounting sleeve 421, so that the two marking rods 426 contact the surface of the stainless steel pipe, thereby marking the surface of the stainless steel pipe. When the inspection is completed, the inspector determines the specific position of the deformation area of ​​the stainless steel pipe based on the position between the two marking ends, thereby achieving the effect of automatically marking the deformation area while performing pressure resistance testing on the stainless steel pipe.

[0022] In this embodiment, Figure 3 As shown, the rotating assembly 43 includes a seventh bevel gear 431 and a rotating toothed rod 432, the seventh bevel gear 431 is horizontally and rotatably arranged at the lower end of the mounting frame 353 and the seventh bevel gear 431 is located below the detection sleeve 412, the seventh bevel gear 431 is meshed with the sixth bevel gear 411, the rotating toothed rod 432 is horizontally arranged at the side end of the moving slide 351 and the seventh bevel gear 431 is meshed with the rotating toothed rod 432; When the detection sleeve 412 moves along the outside of the stainless steel pipe for pressure resistance detection and marking, as the mounting frame 353 moves, the seventh bevel gear 431 moves synchronously along the rotating toothed rod 432, thereby driving the seventh bevel gear 431 and the sixth bevel gear 411 to rotate, thereby driving the detection sleeve 412 to rotate synchronously, thereby driving the multiple marking components 42 to rotate around the outside of the stainless steel pipe while moving horizontally, thereby making the detection range of the multiple marking components 42 on the outside of the stainless steel pipe more comprehensive, thereby improving the overall detection efficiency.

[0023] In this embodiment, Figure 10 to Figure 11 As shown, the linkage assembly 51 includes an eighth connecting frame 511, an eighth bevel gear 512, a linkage shaft 513, a ninth connecting frame 514, a pulley 515 and a transmission belt 516. The eighth connecting frame 511 is arranged on one side of the driving motor 311, and the two ends of the linkage shaft 513 are rotatably connected to the two ends of the eighth connecting frame 511 respectively. The eighth bevel gear 512 is vertically arranged at one end of the linkage shaft 513, and the eighth bevel gear 512 is meshed with the first bevel gear 315. The diameter of the eighth bevel gear 512 is twice that of the first bevel gear 315. The ninth connecting frame 514 is arranged on one side of the eighth connecting frame 511. Two pulleys 515 are provided, one of which is arranged at the other end of the linkage shaft 513, and the other pulley 515 is rotatably arranged at the upper end of the ninth connecting frame 514. The transmission belt 516 is sleeved on the two pulleys 515. The loading and unloading assembly 52 includes a tenth connecting frame 521, a driving disc 522, a driving member 523, a rotating member 524, a protruding member 525, a loading disc 526 and a sealing rod 527. The tenth connecting frame 521 is arranged on one side of the eighth connecting frame 511. The driving disc 522 and the loading disc 526 are coaxially connected to the two sides of the tenth connecting frame 521 for damping rotation. The loading disc 526 is evenly arranged with a plurality of horizontally arranged sealing rods 527 on one side close to the movable slide 351 in a circular shape. The driving disc 522 is evenly arranged with a plurality of rotating members 523, 524 and 525 on one side close to the pulley 515 in a circular shape. The driving member 523 is provided with a rotating member 524, and the positions of the rotating members 524 and the sealing rod 527 correspond one by one. One end of the driving member 523 is arranged on a side of the driving disc 522 close to one of the rotating members 524, and the center of the driving member 523 is coaxially connected with the rotating connection between the pulley 515 and the ninth connecting frame 514. The protruding member 525 is arranged on a side end of the driving member 523, and the length of the protruding member 525 is less than the spacing between the rotating members 524 away from the driving member 523, and the length of the protruding member 525 is longer than the spacing between a rotating member 524 adjacent to the driving member 523. Before testing the stainless steel tube, the ends of several stainless steel tubes to be tested are sleeved on the sealing rod 527 at the side end of the loading tray 526 one by one, and one end of the stainless steel tube is sealed by the sealing rod 527. When the detection sleeve 412 moves back and forth along the outer side of the stainless steel tube for testing, under the drive of the pulley 515 and the transmission belt 516, and because the diameter of the first bevel gear 315 is smaller than the diameter of the eighth bevel gear 512, the detection sleeve 412 moves back and forth once, and the driving member 523 drives the protruding member 525 to move at the center of the driving member 523. When the shaft rotates one circle and the driving member 523 rotates, when the detection sleeve 412 is reset to the initial position and away from the end of the stainless steel tube, the protrusion 525 contacts the adjacent rotating member 524 and drives the loading plate 526 to rotate a certain angle, so that the detected stainless steel tube rotates away from the detection sleeve 412, and drives an undetected stainless steel tube to move to the area corresponding to the position of the detection sleeve 412, so as to continue to perform pressure resistance testing on the stainless steel tube, thereby achieving the effect of automatic loading and unloading of the stainless steel tube after the stainless steel tube inspection is completed.

[0024] The use method and advantages of the present invention: The use method of the stainless steel pipe compression detection device has the following working process: like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 As shown: S1: When the device is in use, firstly, a plurality of stainless steel tubes to be tested are sequentially placed at the loading end of the loading and unloading assembly 52, and one end of the plurality of stainless steel tubes is sealed by the loading and unloading assembly 52, and one of the stainless steel tubes corresponds to the detection end position of the detection marking device 4, and then the water injection assembly 2 is used to seal the other end of the stainless steel tube to be tested and inject a sufficient amount of water according to the internal capacity of the stainless steel tube. After the water is filled, a certain amount of water is continuously injected into the interior thereof, and a period of time is waited. In this process, the compression test of the stainless steel tube is realized; S2: After a period of time, the water inside the stainless steel pipe is discharged through the water injection component 2 and the sealing state of one end thereof is released. Then, through the cooperation between the driving component 31 and the switching component 33, the detection marking device 4 is driven to move along one end of the stainless steel pipe to the other end, and then reset to the initial position. During the movement of the detection marking device 4, if the marking component 42 moves to the deformation area outside the stainless steel pipe, the marking component 42 automatically marks the area. S3: When the detection is completed and the detection marking device 4 is reset to the initial position, the stainless steel pipe that has completed the detection is automatically transferred to an area away from the detection marking device 4 through the cooperation of the linkage component 51 and the loading and unloading component 52, and a stainless steel pipe to be detected is automatically moved to an area corresponding to the detection end position of the detection marking device 4, so as to continue the compression resistance test of the stainless steel pipe.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A stainless steel pipe compression testing device, characterized in that: The invention comprises a base plate (1), wherein the base plate (1) is arranged on a horizontal plane, a water injection assembly (2) is arranged on one side of the top of the base plate (1), a driving reciprocating device (3) is arranged on one side of the water injection assembly (2), the driving reciprocating device (3) comprises a driving assembly (31), a switching assembly (33) and a moving assembly (35), the driving assembly (31) is arranged on one side of the top of the base plate (1), the switching assembly (33) is arranged at the side end of the driving assembly (31), the moving assembly (35) is arranged on the top of the base plate (1) and the moving assembly (35) is located on one side of the water injection assembly (2), a detection marking device (4) is arranged on the moving assembly (35), and the detection marking device (4) comprises a mounting assembly (41) , a marking component (42) and a rotating component (43), the mounting component (41) being arranged on the moving component (35), the marking component (42) being provided with a plurality of marking components (42), the plurality of marking components (42) being evenly arranged in a circular shape on the mounting component (41), the rotating component (43) being arranged at a side end of the mounting component (41), a loading and unloading device (5) being arranged on a side of the moving component (35) away from the water injection component (2), the loading and unloading device (5) comprising a linkage component (51) and a loading and unloading component (52), the linkage component (51) being arranged on the top of the base plate (1) and connected to the driving component (31), and the loading and unloading component (52) being arranged on a side of the linkage component (51) close to the moving component (35).

2. A stainless steel pipe compression testing device according to claim 1, characterized in that: The water injection assembly (2) comprises a mounting block (21), an electric push rod (22), a moving block (23), a water pump (24), a water injection pump (25) and a water injection pipe (26); the mounting block (21) is arranged on one side of the top of the base plate (1); the moving block (23) is arranged at one end of the top of the mounting block (21) and the bottom of the moving block (23) is horizontally slidably connected to the top of the mounting block (21); the electric push rod (22) is horizontally arranged on the top of the mounting block (21) and the output end of the electric push rod (22) is connected to the moving block (23). The water injection pipe (26) is horizontally arranged on the top of the moving block (23); the end of the water injection pipe (26) close to the electric push rod (22) is closed and the end of the water injection pipe (26) away from the electric push rod (22) is open; the water pump (24) and the water injection pump (25) are arranged on the top of the moving block (23); the water pump (24) and the water injection pump (25) are respectively located on both sides of the water injection pipe (26); and the water pump (24) and the water injection pump (25) are respectively connected to both sides of the water injection pipe (26) through a one-way valve.

3. A stainless steel pipe compression testing device according to claim 2, characterized in that: The driving assembly (31) comprises a driving motor (311), a first connecting frame (312), a second connecting frame (313), a third connecting frame (314), a first bevel gear (315), a second bevel gear (316), a third bevel gear (317), a connecting shaft (318), a switching sleeve (319), a switching shaft sleeve (320), a fourth connecting frame (321) and a fourth bevel gear (322), wherein the driving motor (311) is arranged on the top of the base plate (1), the first connecting frame (312) is arranged on one side of the driving motor (311), and the first bevel gear (315) is arranged on the other side of the base plate (1). The first connecting frame (312) is rotatably arranged on one side of the first connecting frame (312), the output end of the driving motor (311) is connected to the rotatable connection between the first connecting frame (312) and the first bevel gear (315), the second connecting frame (313) and the third connecting frame (314) are symmetrically arranged on both sides of the first bevel gear (315), the second connecting frame (313) and the third connecting frame (314) are rotatably arranged on one side adjacent to the second connecting frame (313) and the third connecting frame (314), and the two sides of the first bevel gear (315) are respectively connected to the second bevel gear (316) and the third bevel gear (317). ), the fourth connecting frame (321) is arranged on a side of the third connecting frame (314) away from the second connecting frame (313), the connecting shaft (318) horizontally passes through the second connecting frame (313), the third connecting frame (314) and the fourth connecting frame (321), and the connecting shaft (318) is rotatably connected to the fourth connecting frame (321), and the connecting shaft (318) does not contact the second connecting frame (313), the third connecting frame (314), the second bevel gear (316) and the third bevel gear (317), and the fourth bevel gear (322) is arranged on the connecting shaft (318) away from the second bevel gear One end of the wheel (316), a switching sleeve (319) is provided at the center of a side adjacent to the second bevel gear (316) and the third bevel gear (317), the switching sleeve (320) is provided on the outside of the connecting shaft (318), the switching sleeve (320) is slidably connected to the connecting shaft (318) in a horizontal direction, the switching sleeve (319) is located between the two switching sleeves (319), the switching sleeve (320) is engaged with the switching sleeve (319) at the side end of the third bevel gear (317), and the other side of the switching sleeve (320) is pre-engaged with the switching sleeve (319) at the side end of the second bevel gear (316); The switching assembly (33) comprises a fifth connecting frame (331), a driving gear (332), a fifth bevel gear (333), a sixth connecting frame (334), a first connecting rod (335), a second connecting rod (336), a third connecting rod (337), a seventh connecting frame (338), a switching rod (339), a counterweight (340) and a fixed frame (341), wherein the fifth connecting frame (331) is arranged on one side of the fourth connecting frame (321), the driving gear (332) is rotatably arranged on a side end of the fifth connecting frame (331), the fifth bevel gear (333) is arranged on one side of the fifth connecting frame (331), and the fifth bevel gear (333) and the driving gear (332) are coaxially connected, one end of the first connecting rod (335) is coaxially connected to the fifth bevel gear (333), and the fifth bevel gear (333) and the fourth bevel gear (322) are meshed, the sixth connecting frame (334) is arranged on one side of the first connecting rod, and the One end of the second connecting rod (336) is rotatably connected to the top of the sixth connecting frame (334); a protrusion is provided on one side of the first connecting rod (335) and the protrusion is in the same plane as the second connecting rod (336); the seventh connecting frame (338) is arranged directly below the switching shaft sleeve (320); the bottom of the fixing frame (341) is rotatably connected to the top of the seventh connecting frame (338); the top of the fixing frame (341) is rotatably connected to the middle of the switching shaft sleeve (320); The switching rod (339) is coaxially connected with the rotation connection of the fixing frame (341) and the seventh connecting frame (338); the switching rod (339) is arranged in a V shape; a counterweight block (340) is provided on the top of one end of the switching rod (339) close to the third bevel gear (317); and one side of the switching rod (339) close to the third bevel gear (317) and one side of the lower part of the second connecting rod (336) are respectively rotationally connected to two ends of the third connecting rod (337).

4. A stainless steel pipe compression testing device according to claim 3, characterized in that: The moving assembly (35) comprises a moving slide (351), a moving slider (352), a mounting frame (353) and a driving toothed rod (354); the moving slide (351) is arranged on the top of the base plate (1) and is located on one side of the mounting block (21); the moving slider (352) is arranged on the top of the moving slide (351) and is slidably connected to the moving slide (351) in a horizontal direction; the mounting frame (353) is arranged on the top of the moving slider (352); a side of the mounting frame (353) close to the water injection pipe (26) is provided with an opening for facilitating the passage of the water injection pipe (26); the driving toothed rod (354) is arranged horizontally on one side of the mounting frame (353); and an end of the driving toothed rod (354) away from the mounting frame (353) is meshed with the driving gear (332).

5. A stainless steel pipe compression testing device according to claim 4, characterized in that: The mounting assembly (41) comprises a sixth bevel gear (411) and a detection sleeve (412); the sixth bevel gear (411) is rotatably arranged on a side of the mounting frame (353) away from the water injection pipe (26); an opening is provided at the center of the sixth bevel gear (411) for facilitating the water injection pipe (26) to pass through; the detection sleeve (412) is arranged on a side of the sixth bevel gear (411) away from the mounting frame (353) and is arranged in a circular ring shape; the detection sleeve (412) is connected to the sixth bevel gear (411) cocentrically; the inner diameter of the detection sleeve (412) is consistent with the outer diameter of the stainless steel pipe; the detection sleeve (412) is hollow; and the interior of the detection sleeve (412) is circularly and evenly provided with a plurality of marking components (42); Each marking assembly (42) comprises a mounting sleeve (421), a marking sleeve (422), a spring (423), a trigger column (424), a trigger rod (425) and a marking rod (426); the mounting sleeve (421) is arranged inside the detection sleeve (412) and passes through the inner side wall of the detection sleeve (412) and is flush with it; the marking sleeve (422) vertically passes through the top of the mounting sleeve (421) and is slidably connected to it up and down; the trigger column (424) vertically passes through the middle of the lower end of the mounting sleeve (421) and is slidably connected to it up and down; a spring (423) is vertically provided between the top of the trigger column (424) and the top of the marking sleeve (422); the bottom of the trigger column (424) is flush with the inner side wall of the detection sleeve (412); the trigger rod (425) is connected to the detection sleeve (412) and the trigger column (424 ... ) passes horizontally through the middle of the trigger column (424) and the trigger rod (425) is slidably connected to the middle of the mounting sleeve (421) in the horizontal direction, the trigger rod (425) is provided with mirror-image inclined surfaces at both ends, the bottom of the marking sleeve (422) is provided with mirror-image inclined surfaces at both ends and the bottom of the marking sleeve (422) is respectively connected to the two ends of the trigger rod (425) in an oblique sliding manner through the inclined surfaces, two marking rods (426) are provided, and the two marking rods (426) are symmetrically arranged at the two ends of the bottom of the marking sleeve (422), the bottom of the mounting sleeve (421) is provided with openings at both ends, the two marking rods (426) respectively pass through the two openings and the bottom height of the two marking rods (426) is slightly higher than the bottom height of the mounting sleeve (421), and the bottom of the marking rod (426) is provided with a marking surface.

6. A stainless steel pipe compression testing device according to claim 5, characterized in that: The rotating assembly (43) comprises a seventh bevel gear (431) and a rotating toothed rod (432); the seventh bevel gear (431) is horizontally and rotatably arranged at the lower end of the mounting frame (353) and the seventh bevel gear (431) is located below the detection sleeve (412); the seventh bevel gear (431) is meshed with the sixth bevel gear (411); the rotating toothed rod (432) is horizontally arranged at the side end of the moving slide (351) and the seventh bevel gear (431) is meshed with the rotating toothed rod (432).

7. A stainless steel pipe compression testing device according to claim 6, characterized in that: The linkage assembly (51) comprises an eighth connecting frame (511), an eighth bevel gear (512), a linkage shaft (513), a ninth connecting frame (514), a pulley (515) and a transmission belt (516); the eighth connecting frame (511) is arranged on one side of the driving motor (311); two ends of the linkage shaft (513) are rotatably connected to two ends of the eighth connecting frame (511), the eighth bevel gear (512) is vertically arranged on one end of the linkage shaft (513), and the eighth bevel gear (512) is arranged on the ninth connecting frame (514). 12) meshes with the first bevel gear (315), the diameter of the eighth bevel gear (512) is twice that of the first bevel gear (315), the ninth connecting frame (514) is arranged on one side of the eighth connecting frame (511), two pulleys (515) are provided, one of the pulleys (515) is arranged at the other end of the linkage shaft (513), and the other pulley (515) is rotatably arranged at the upper end of the ninth connecting frame (514), and the transmission belt (516) is sleeved on the two pulleys (515); The loading and unloading assembly (52) comprises a tenth connecting frame (521), a driving disc (522), a driving member (523), a rotating member (524), a protruding member (525), a loading disc (526) and a sealing rod (527); the tenth connecting frame (521) is arranged on one side of the eighth connecting frame (511); the driving disc (522) and the loading disc (526) are coaxially connected to the two sides of the tenth connecting frame (521) for damping rotation; a side of the loading disc (526) close to the movable slide (351) is evenly provided with a plurality of horizontally arranged sealing rods (527); a side of the driving disc (522) close to the pulley (515) is evenly provided with a plurality of horizontally arranged sealing rods (527) A rotating member (524) is provided, and the positions of the plurality of rotating members (524) and the sealing rod (527) correspond one to one. One end of the driving member (523) is arranged on a side of the driving disk (522) close to one of the rotating members (524), and the center of the driving member (523) is coaxially connected to the rotating connection between the pulley (515) and the ninth connecting frame (514). The protruding member (525) is arranged on a side end of one side of the driving member (523), and the length of the protruding member (525) is less than the spacing between the plurality of rotating members (524) away from the driving member (523), and the length of the protruding member (525) is longer than the spacing between a rotating member (524) adjacent to the driving member (523).

8. A method for using a stainless steel pipe compression testing device, characterized in that: Using a stainless steel pipe compression testing device as described in any one of claims 1 to 7 comprises the following steps: S1: When the device is in use, firstly, a plurality of stainless steel tubes to be tested are sequentially placed at the loading end of the loading and unloading assembly (52), and one end of the plurality of stainless steel tubes is sealed by the loading and unloading assembly (52), and one of the stainless steel tubes corresponds to the detection end position of the detection marking device (4), then the water injection assembly (2) is operated to seal the other end of the stainless steel tube to be tested and a sufficient amount of water is injected according to the internal capacity of the stainless steel tube, and after the water is filled, a certain amount of water is continuously injected into the interior thereof, and a period of time is waited, during which the compression test of the stainless steel tube is realized; S2: After a period of time, the water inside the stainless steel pipe is discharged through the water injection component (2) and the sealing state of one end thereof is released. Then, through the cooperation between the driving component (31) and the switching component (33), the detection marking device (4) is driven to move along one end of the stainless steel pipe to the other end and then reset to the initial position. During the movement of the detection marking device (4), if the marking component (42) moves to the deformation area outside the stainless steel pipe, the marking component (42) automatically marks the area. S3: When the detection is completed and the detection marking device (4) is reset to the initial position, the linkage component (51) and the loading and unloading component (52) cooperate with each other to automatically transfer the detected stainless steel pipe to an area away from the detection marking device (4), and automatically move a stainless steel pipe to be detected to an area corresponding to the detection end position of the detection marking device (4), so as to continue to perform pressure resistance testing on the stainless steel pipe.

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