CN112964557A - Stress detection device for building circular pipe - Google Patents
Stress detection device for building circular pipe Download PDFInfo
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- CN112964557A CN112964557A CN202110194531.9A CN202110194531A CN112964557A CN 112964557 A CN112964557 A CN 112964557A CN 202110194531 A CN202110194531 A CN 202110194531A CN 112964557 A CN112964557 A CN 112964557A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0274—Tubular or ring-shaped specimens
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Abstract
The invention discloses a stress detection device for a building circular tube, which comprises a detection table, wherein the left side and the right side of the top of the detection table are connected with electric telescopic rods, the movable end of the top of each electric telescopic rod is connected with a pressing plate, the bottom of each pressing plate is connected with an electromagnetic plate, the top of the detection table is provided with four groups of guide grooves, sliding blocks are connected in the guide grooves in a sliding mode, the top of each sliding block is connected with a detection column, a pneumatic rod is connected between each sliding block and the inner wall of each guide groove, the center of the top of the detection table is connected with a fixed column, the periphery of the outer wall of the fixed column is connected with a plurality of groups of joint pipes, a circular cavity is formed in each detection column, a sealing block is fixedly connected in each circular cavity; the invention has reasonable structural design, improves the applicability of the device, has extremely high convenience and makes the detection result more convincing.
Description
Technical Field
The invention relates to the technical field of building related equipment, in particular to a stress detection device for a building circular tube.
Background
The construction is a production movement performed by people to construct various building products in a certain space and time according to a specific design blueprint by using various building materials and mechanical equipment. The method comprises the whole production process from construction preparation, earth breaking and engineering completion acceptance. In the process, construction preparation, construction organization design and management, earthwork engineering, blasting engineering, foundation engineering, reinforcing steel bar engineering, template engineering, scaffold engineering, concrete engineering, prestressed concrete engineering, masonry engineering, steel structure engineering, wood structure engineering, structure installation engineering and the like are carried out.
The building construction is a production process with complex technology, and building construction workers need to exert clever and talent intelligence to creatively apply theories such as materials, mechanics, structures, processes and the like to solve the technical problems which continuously appear in the construction, thereby ensuring the engineering quality and the construction safety. The construction process is carried out by multiple workers in limited time and space. The supply of hundreds of materials and the operation of various mechanical equipment, so that scientific and advanced organization and management measures and advanced construction processes are necessary to fully complete the production process, and the process is a process with higher economy.
The round pipe is important construction material in the building construction, in order to ensure the building quality, need carry out the sampling test to the round pipe, the deformation condition under the inspection round pipe stress state, the round pipe is unqualified when deformation is great, however current check out test set is comparatively complicated, and it is direct-view inadequately to detect the structure, for this reason, we have provided a building atress detection device for the round pipe.
Disclosure of Invention
The invention aims to provide a stress detection device for a building circular pipe, which aims to overcome the technical problems in the prior art.
In order to achieve the technical purpose and achieve the technical effect, the invention provides the following technical scheme:
the utility model provides a atress detection device for building pipe, is including examining the test table, the bottom four corners of examining the test table is connected with the support column, the top left and right sides of examining the test table is connected with electric telescopic handle, electric telescopic handle's top expansion end is connected with the clamp plate, the bottom of clamp plate is connected with the electromagnetic plate, four groups of guide ways have been seted up at the top of examining the test table, sliding connection has the slider in the guide way, the top of slider is connected with the detection post, be connected with the pneumatic stem between slider and the guide way inner wall.
Preferably, in the stress detection device for the building circular tube, a fixed column is connected to the center of the top of the detection table, a plurality of groups of joint pipes are connected around the outer wall of the fixed column, an annular cavity is formed in the detection column, a sealing block is fixedly connected in the annular cavity, electrorheological fluid is filled in the upper portion of an inner cavity of the annular cavity, normal-pressure air is filled in the lower portion of the inner cavity of the annular cavity, a rubber tube is communicated with the upper portion of the annular cavity, and the other end of the rubber tube is arranged in a closed manner.
Preferably, in the stress detection device for the building circular tube, an inner conductive film is embedded at one end, close to the axis of the detection column, of the annular cavity, an outer conductive film is embedded at one end, far away from the axis of the detection column, of the annular cavity, a capacitor is embedded inside the detection column, the capacitor is formed by combining two capacitor plates, an annular groove is formed in the top of the detection column, a movable magnetic ring is arranged in the annular groove, the magnetic poles of the movable magnetic ring and one end, close to the electromagnetic plate, of the electromagnetic plate are opposite, and a conductive ring is sealed at the upper end of the.
Preferably, in the stress detection device for the building circular tube, a movable cavity is formed in the detection platform, a steering motor is connected to the bottom center of the detection platform, a steering shaft is connected to the top output end of the steering motor, a disc is connected to one end, extending into the movable cavity, of the steering shaft, fixing seats are connected to the front end and the rear end of the top of the disc, two groups of arc-shaped grooves for the fixing seats to penetrate are formed in the upper end of the detection platform, two groups of force application rods are symmetrically connected to one ends, close to the fixing seats, of the fixing seats, and the movable ends of the force application rods are connected with arc.
Preferably, in the stress detection device for the building circular tube, a fixed magnetic ring is installed at the bottom of the detection column in an embedded mode, an outer conductive block is arranged on the outer side of the fixed magnetic ring, an inner conductive block is arranged on the inner side of the fixed magnetic ring, the outer conductive block and the inner conductive block are respectively and electrically connected with two capacitor plates, the top of the sliding block is connected with a limit magnetic ring, the magnetism of the upper end of the limit magnetic ring is opposite to that of the lower end of the fixed magnetic ring, and a charging wire is embedded in the inner ring and the outer ring of the limit magnetic.
Preferably, in the stress detection device for the building circular tube, the conductive ring is electrically connected to the inner conductive film, the movable magnetic ring is electrically connected to one capacitor plate through a wire, and the outer conductive film is electrically connected to the other capacitor plate.
Preferably, in the stress detection device for the building circular tube, a plurality of groups of rubber tubes are arranged from top to bottom at equal intervals, and one closed end of each rubber tube is sleeved outside the joint tube.
Preferably, in the stress detection device for the building circular tube, the four groups of guide grooves are distributed in a cross structure.
Compared with the prior art, the invention has the beneficial effects that:
1. the detection device is reasonable in structural design, the detection platform is fixed through the support columns, the press plate is lifted by the electric telescopic rod, the slide block is pushed by the pneumatic rod to move along the guide groove, the detection column is driven to abut against the inner wall of the circular tube, the press plate is driven to descend by the electric telescopic rod, the electromagnetic plate is close to the detection column below, the electromagnetic plate is electrified to generate magnetic force to adsorb the movable magnetic ring, the movable magnetic ring is abutted against the conducting ring after rising along the annular groove, the capacitor serves as a power supply to form a closed loop with the movable magnetic ring, the conducting ring, the outer conducting film, the electrorheological fluid and the inner conducting film, the electrorheological fluid in the annular cavity is changed from a liquid state into an undeformable solid state when being subjected to an electric field, so that the rubber tube cannot be bent and deformed;
2. the electromagnetic plate does not generate magnetism when not electrified, the movable magnetic ring is positioned at the lower part of the annular groove and does not contact the conductive ring, an electric field cannot be generated in the annular cavity, the electrorheological fluid is in a liquid state, and the sliding block can drive the detection column to synchronously move, so that circular tube samples with different inner diameters are matched for detection, the applicability of the device is improved, and the device has extremely high convenience;
3. according to the invention, the arc block is abutted against the outer wall of the circular tube during detection, an extrusion force is applied to the outer wall of the circular tube through the force application rod, the extrusion force presses the circular tube to generate deformation after being stressed, so that the outer conductive film at the corresponding position is directly contacted with the inner conductive film, at the moment, the capacitor is taken as a power supply to form a closed loop with the movable magnetic ring, the conductive ring, the outer conductive film and the inner conductive film, the resistance is extremely low, the electric energy stored by the capacitor can be quickly exhausted, the electrorheological fluid in the corresponding detection column is recovered to the initial liquid state, and a larger extrusion force is used during detection, the pneumatic rod can drive the corresponding detection column to be separated from the inner wall of the circular tube to reset, so that the circular tube sample is unqualified when the deformation of the circular tube does not exceed;
4. according to the invention, the steering shaft is driven to rotate by the steering motor, the disc can drive the fixing base to steer, the fixing base extends out of the arc-shaped groove, the arc block can be attached to different positions of a circular tube sample, the detection result is more convincing, the fixed magnetic ring at the bottom of the detection column can adsorb the limit magnetic ring, the inner ring and the outer ring of the limit magnetic ring are respectively embedded with a charging wire communicated with an external power supply, the charging wire can be charged to the outer conductive block and the inner conductive block, so that the capacitor is charged, the power supply is removed after the charging is finished, and the device.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a schematic view of the internal structure of the inspection station according to the present invention;
FIG. 3 is a schematic structural view of a fixing post according to the present invention;
FIG. 4 is a schematic view showing the internal structure of the detection column of the present invention;
FIG. 5 is a schematic structural view of the fixing base of the present invention;
fig. 6 is a schematic structural view of the slider in the present invention.
In the figure: 1. a detection table; 2. a support pillar; 3. an electric telescopic rod; 4. pressing a plate; 5. an electromagnetic plate; 6. a guide groove; 7. a slider; 8. a detection column; 9. a pneumatic rod; 10. fixing a column; 11. a joint pipe; 12. an annular cavity; 13. a sealing block; 14. a rubber tube; 15. an inner conductive film; 16. an outer conductive film; 17. a capacitor; 18. an annular groove; 19. a movable magnetic ring; 20. conducting rings; 21. a movable cavity; 22. a steering motor; 23. a steering shaft; 24. a disc; 25. a fixed seat; 26. an arc-shaped slot; 27. a force application rod; 28. an arc block; 29. a fixed magnetic ring; 30. an outer conductive block; 31. an inner conductive block; 32. and a limiting magnetic ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1-6, this embodiment is a stress detection device for building pipe, including detecting platform 1, the bottom four corners of detecting platform 1 is connected with support column 2, the top left and right sides of detecting platform 1 is connected with electric telescopic handle 3, the top expansion end of electric telescopic handle 3 is connected with clamp plate 4, the bottom of clamp plate 4 is connected with electromagnetic plate 5, four groups of guide ways 6 have been seted up at the top of detecting platform 1, sliding connection has slider 7 in the guide way 6, the top of slider 7 is connected with detects post 8, be connected with pneumatic stem 9 between slider 7 and the 6 inner walls of guide way.
The top center of examining test table 1 is connected with fixed column 10, and the outer wall of fixed column 10 is connected with multiunit adapter tube 11 all around, has seted up annular chamber 12 in the detection post 8, and the sealed piece 13 of fixedly connected with in annular chamber 12, the inner chamber upper portion packing of annular chamber 12 have the electrorheological fluid, and the inner chamber lower part of annular chamber 12 has been irritated the ordinary pressure air, and the upper portion intercommunication of annular chamber 12 has rubber tube 14, and the other end closure setting of rubber tube 14.
An inner conductive film 15 is embedded at one end, close to the axis of the detection column 8, of the annular cavity 12, an outer conductive film 16 is embedded at one end, far away from the axis of the detection column 8, of the annular cavity 12, a capacitor 17 is embedded inside the detection column 8, the capacitor 17 is formed by combining two capacitor plates, an annular groove 18 is formed in the top of the detection column 8, a movable magnetic ring 19 is arranged in the annular groove 18, the movable magnetic ring 19 is opposite to the magnetic pole at one end, close to the electromagnetic plate 5, of the movable magnetic ring 19, and a conductive ring 20.
Examine and to have seted up movable chamber 21 in the test table 1, the bottom center of examining test table 1 is connected with and turns to motor 22, the top output that turns to motor 22 is connected with steering spindle 23, the one end that steering spindle 23 stretched into movable chamber 21 is connected with disc 24, both ends are connected with fixing base 25 around disc 24's the top, examine test table 1 upper end and set up two sets of arc walls 26 that supply fixing base 25 to pass, the one end symmetric connection that two sets of fixing bases 25 are close to mutually has application of force pole 27, the expansion end of application of force pole 27 is connected with arc piece 28.
The bottom of the detection column 8 is embedded with a fixed magnetic ring 29, the outer side of the fixed magnetic ring 29 is provided with an outer conductive block 30, the inner side of the fixed magnetic ring 29 is provided with an inner conductive block 31, the outer conductive block 30 and the inner conductive block 31 are respectively and electrically connected with two capacitor plates, the top of the sliding block 7 is connected with a limit magnetic ring 32, the magnetism of the upper end of the limit magnetic ring 32 is opposite to that of the lower end of the fixed magnetic ring 29, and charging wires are embedded in the inner and outer rings of the limit magnetic ring.
The conductive ring 20 is electrically connected to the inner conductive film 15, the movable magnetic ring 19 is electrically connected to one capacitor plate through a conductive wire, and the outer conductive film 16 is electrically connected to the other capacitor plate.
The rubber pipes 14 are arranged in groups at equal intervals from top to bottom, and one closed end of the rubber pipe 14 is sleeved outside the joint pipe 11.
The four groups of guide grooves 6 are distributed in a cross structure.
The specific implementation manner of this embodiment is:
when the device is used, the detection platform 1 is fixed through the support column 2, the electric telescopic rod 3 is utilized to lift the pressing plate 4, the pneumatic rod 9 is utilized to push the slide block 7, so that the slide block 7 moves along the guide groove 6, thereby driving the detection column 8 to abut against the inner wall of the circular tube, driving the pressing plate 4 to descend through the electric telescopic rod 3, the electromagnetic plate 5 is close to the lower detection column 8, the electromagnetic plate 5 is electrified to generate magnetic force to adsorb the lower movable magnetic ring 19, the movable magnetic ring 19 rises along the annular groove 18 and then abuts against the conducting ring 20, the capacitor 17 is used as a power supply to form a closed loop with the movable magnetic ring 19, the conducting ring 20, the outer conducting film 16, the electrorheological fluid and the inner conducting film 15, the electrorheological fluid in the annular cavity 12 is changed from a liquid state to an undeformable solid state when sensing an electric field, the rubber tube 14 cannot be bent and deformed, the rubber tube 14 is connected with the fixing column 10 through the joint tube 11, and the position of the detection column 8 relative to the guide groove 6 is fixed;
the electromagnetic plate 5 does not generate magnetism when not electrified, the movable magnetic ring 19 is positioned at the lower part of the annular groove 18 and does not contact the conductive ring 20, an electric field cannot be generated in the annular cavity 12, the electrorheological fluid is in a liquid state, and the sliding block 7 can drive the detection column 8 to synchronously move, so that the detection is carried out by matching with circular tube samples with different inner diameters, the applicability of the device is improved, and the device has extremely high convenience;
when in detection, the arc block 28 is abutted against the outer wall of the circular tube, the force application rod 27 is used for applying an extrusion force to the outer wall of the circular tube, the extrusion force presses the circular tube to be deformed after being stressed, so that the outer conductive film 16 at the corresponding position is directly contacted with the inner conductive film 15, at the moment, the capacitor 17 serves as a power supply to form a closed loop with the movable magnetic ring 19, the conductive ring 20, the outer conductive film 16 and the inner conductive film 15, the resistance is extremely small, the electric energy stored by the capacitor 17 can be quickly exhausted, the electrorheological fluid in the corresponding detection column 8 is recovered to an initial liquid state, and the pneumatic rod 9 can drive the corresponding detection column 8 to be separated from the inner wall of the circular tube to reset by assisting the higher extrusion force during detection, so that the stress deformation of the circular tube sample exceeds a standard, the circular tube sample is unqualified, otherwise;
drive steering spindle 23 through turning to motor 22 and rotate, disc 24 can drive fixing base 25 and turn to, fixing base 25 stretches out arc wall 26, the different positions of pipe sample can be laminated to arc piece 28, the testing result has the convincing power more, the fixed magnetic ring 29 of 8 bottoms of detection post can adsorb spacing magnetic ring 32, the charging wire that is equipped with external power supply intercommunication is inlayed respectively to spacing magnetic ring 32 inner and outer circle, can be to outer conducting block 30, interior conducting block 31 charges, thereby charge electric capacity 17, remove the power after the completion of charging, be convenient for next use.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a building atress detection device for pipe, is including examining test table (1), its characterized in that: the utility model discloses a detection platform, including detection platform (1), detect the bottom four corners connection of platform (1) have support column (2), the top left and right sides of detecting platform (1) is connected with electric telescopic handle (3), the top expansion end of electric telescopic handle (3) is connected with clamp plate (4), the bottom of clamp plate (4) is connected with electromagnetic plate (5), four groups guide way (6) have been seted up at the top of detecting platform (1), sliding connection has slider (7) in guide way (6), the top of slider (7) is connected with detects post (8), be connected with pneumatic stem (9) between slider (7) and guide way (6) inner wall.
2. The stress detection device for the building round pipe according to claim 1, characterized in that: the detection device is characterized in that a fixed column (10) is connected to the center of the top of the detection platform (1), a plurality of groups of joint pipes (11) are connected to the periphery of the outer wall of the fixed column (10), an annular cavity (12) is formed in the detection column (8), a sealing block (13) is fixedly connected in the annular cavity (12), electrorheological fluid is filled in the upper portion of an inner cavity of the annular cavity (12), normal-pressure air is filled in the lower portion of the inner cavity of the annular cavity (12), a rubber pipe (14) is communicated with the upper portion of the annular cavity (12), and the other end of the rubber pipe (14.
3. The stress detection device for the building round pipe as claimed in claim 2, wherein: the ring cavity (12) is close to the one end gomphosis of detecting post (8) axle center has interior conducting film (15), the one end gomphosis that detects post (8) axle center is kept away from in ring cavity (12) has outer conducting film (16), electric capacity (17) have been buried underground to the inside of detecting post (8), electric capacity (17) are formed by two electric capacity board combinations, ring channel (18) have been seted up at the top of detecting post (8), be equipped with movable magnetic ring (19) in ring channel (18), movable magnetic ring (19) are opposite with the one end magnetic pole that electromagnetic plate (5) are close to mutually, ring channel (18) upper end is sealed has conducting ring (20).
4. The stress detection device for the building round pipe according to claim 1, characterized in that: examine and to have seted up movable chamber (21) in platform (1), the bottom center of examining test table (1) is connected with steering motor (22), the top output that turns to motor (22) is connected with steering spindle (23), the one end that steering spindle (23) stretched into movable chamber (21) is connected with disc (24), both ends are connected with fixing base (25) around the top of disc (24), examine test table (1) upper end and set up arc wall (26) that two sets of confession fixing base (25) passed, it is two sets of one end symmetric connection that fixing base (25) are close to mutually has application of force pole (27), the expansion end of application of force pole (27) is connected with arc piece (28).
5. The stress detection device for the building round pipe according to claim 1, characterized in that: the bottom gomphosis of detection post (8) is installed and is decided magnetic ring (29), the outside of deciding magnetic ring (29) is equipped with outer conducting block (30), it is equipped with interior conducting block (31) to decide magnetic ring (29) inboard, two blocks of condenser plates of electric connection respectively in outer conducting block (30) and interior conducting block (31), the top of slider (7) is connected with spacing magnetic ring (32), spacing magnetic ring (32) upper end magnetism is opposite with deciding magnetic ring (29) lower extreme magnetism, the inner and outer circle of spacing magnetic ring (32) inlays and is equipped with the charging wire.
6. The stress detection device for the building round pipe according to claim 3, characterized in that: the conducting ring (20) is electrically connected with the inner conducting film (15), the movable magnetic ring (19) is electrically connected with one capacitor plate through a conducting wire, and the outer conducting film (16) is electrically connected with the other capacitor plate.
7. The stress detection device for the building round pipe as claimed in claim 2, wherein: the rubber tube (14) is provided with a plurality of groups at equal intervals from top to bottom, and the closed end of the rubber tube (14) is sleeved outside the joint tube (11).
8. The stress detection device for the building round pipe according to claim 1, characterized in that: the four groups of guide grooves (6) are distributed in a cross structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110194531.9A CN112964557B (en) | 2021-02-20 | 2021-02-20 | Stress detection device for building round pipe |
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|---|---|---|---|
| CN202110194531.9A CN112964557B (en) | 2021-02-20 | 2021-02-20 | Stress detection device for building round pipe |
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| CN112964557A true CN112964557A (en) | 2021-06-15 |
| CN112964557B CN112964557B (en) | 2023-05-05 |
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| CN207585894U (en) * | 2017-10-25 | 2018-07-06 | 嵊州市一力机械有限公司 | A kind of product testing platform |
| CN210243359U (en) * | 2019-05-27 | 2020-04-03 | 无锡市前洲无缝钢管有限公司 | Steel pipe strength test machine |
| CN210741987U (en) * | 2019-06-29 | 2020-06-12 | 江苏信驰能源科技有限公司 | Natural gas line pressure measurement |
| CN210513939U (en) * | 2019-08-22 | 2020-05-12 | 曾峰 | A compressive strength detection device for nonrust steel pipe processing |
| CN212254904U (en) * | 2020-05-16 | 2020-12-29 | 湖北久筑新材料科技有限公司 | Building structure's detection device |
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