Construction engineering steel structure detection device

Abstract

The invention discloses a constructional engineering steel structure detection device, and belongs to the field of material strength detection, the constructional engineering steel structure detection device comprises a base, a support is mounted on the side wall of the base, and a hydraulic cylinder is mounted on the support; an extrusion block is mounted at the output end of the hydraulic cylinder, supporting plates are symmetrically mounted on the base, mounting grooves are symmetrically formed in the side walls of the adjacent sides of the supporting plates, rolling wheels are mounted in the mounting grooves, and the outer walls of the rolling wheels are rotationally sleeved with circular ring sleeves; at the moment that the contact part of the steel structure and the extrusion block deforms, the steel structure tends to move towards the extrusion block and drives the circular ring sleeve to rotate towards the extrusion block, so that the steel structure can be prevented from sliding on the surface of the circular ring sleeve, the abrasion degree of the circular ring sleeve is reduced, and the effect of protecting the circular ring sleeve is achieved; therefore, in the subsequent detection process, it can be ensured that the detected steel structure is in a straightening state, it is ensured that the extrusion block can provide vertically downward pressure for the steel structure, and the detection accuracy is improved.

Description

Technical Field

[0001] The invention relates to the field of material strength detection, and more specifically to a steel structure detection device for construction engineering. Background Art

[0002] Steel structure is a structure made of steel materials and is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel and steel plates. The components or parts are usually connected by welds, bolts or rivets. Because of its light weight and simple construction, it is widely used in large factories, venues and super high-rise buildings.

[0003] Steel structures bear important loads in buildings, and their safety is directly related to the overall safety of the building. Through testing, problems such as cracks, deformation, and corrosion in steel structures can be discovered in a timely manner to avoid safety accidents such as partial or overall collapse during use, thus protecting people's lives and property.

[0004] The Chinese patent application with authorization announcement number: CN118150324B discloses a steel structure detection device for construction engineering. By setting a rotatable lower support plate, when the steel structure main body is deformed, the lower support plate rotates with the steel structure main body, thereby solving the problem of the lower support plate being damaged due to the rotation of the end of the steel structure main body; by setting an angle compensation block, when the steel structure main body is deformed, the angle compensation block and the surface of the steel structure main body are fitted, thereby increasing the friction between the upper clamping block and the steel structure main body, so that the steel structure main body is clamped more firmly.

[0005] The above patent still has the following shortcomings: During the pressure resistance test of steel structures, when the steel structure is deformed, sliding friction will occur between the clamping mechanism and the steel structure. Especially during batch testing, the clamping mechanism is frequently subjected to friction, causing it to gradually wear out. This wear further affects the clamping mechanism's ability to position the steel structure, making it difficult to accurately align the steel structure, so that the hydraulic cylinder has difficulty applying force to the designated part of the steel structure, ultimately resulting in large errors in the test results.

[0006] Therefore, a construction engineering steel structure detection device is proposed. Summary of the invention

[0007] In view of the problems existing in the prior art, the purpose of the present invention is to provide a steel structure detection device for construction engineering, which can align the steel structure to be detected and reduce the detection error.

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] A construction engineering steel structure detection device comprises a base, a bracket is installed on the side wall of the base, and a hydraulic cylinder is installed on the bracket; An extrusion block is installed on the output end of the hydraulic cylinder, a support plate is symmetrically installed on the base, mounting grooves are symmetrically opened on the side walls of the adjacent sides of the support plate, rollers are installed in the mounting grooves, a circular sleeve is rotatably provided on the outer wall of the roller, anti-slip grooves are evenly opened on the outer surface of the circular sleeve, and the inner wall of the circular sleeve is a mirror surface; balls are evenly and movably embedded on the outer wall of the roller, the balls and the inner wall of the circular sleeve are rollingly matched, and a lubrication mechanism for lubricating the balls is provided on the support plate.

[0010] Furthermore, a bidirectional threaded rod passing through the mounting groove is horizontally rotatably inserted on the support plate, two mounting plates are threadedly installed on the bidirectional threaded rod, clamps are slidably installed on the side walls on adjacent sides of the two mounting plates, and a guide rod is commonly fixedly installed on the side walls on the opposite sides of the mounting groove, the guide rod passes through the mounting plate, and an electromagnetic brake motor for driving the bidirectional threaded rod to rotate is fixedly installed on the support plate.

[0011] Furthermore, an elastic membrane is fixedly mounted on the side wall of the mounting plate, and the clamping plate is embedded in the elastic membrane, and the clamping plate passes through the elastic membrane.

[0012] Furthermore, movable grooves are evenly formed on the outer wall of the roller, and the balls are movably embedded in the movable grooves; a guide cavity is formed on the roller, and a conduit with a top end extending to the movable groove on the top wall of the roller is inserted on the top wall of the guide cavity; The lubrication mechanism includes an inlet valve fixedly embedded on the side wall of the guide cavity, the input end of the inlet valve extends to the surface of the bottom wall of the roller, a drain valve is embedded in the conduit, the input end of the drain valve is connected to the guide cavity, and a pressurizing mechanism for pressurizing the guide cavity is provided on the support plate.

[0013] Furthermore, a groove is provided on the bottom wall of the extrusion block, and a friction pad made of elastic material is fixedly installed in the groove.

[0014] Furthermore, the pressurizing mechanism comprises a pressurizing cavity opened on the friction pad, and an air pipe extending into the guide cavity is inserted on the side wall of the pressurizing cavity.

[0015] Furthermore, a telescopic rod is vertically fixedly installed on the bottom wall of the installation groove, a clamping block is fixedly installed on the top wall of the output end of the telescopic rod, and the side wall of the clamping block close to the extrusion block is an inclined surface.

[0016] Furthermore, the telescopic rod includes a sleeve, a top rod and an elastic member; the top end of the sleeve is open, the top rod is vertically slidably inserted in the sleeve, the elastic member is arranged in the sleeve, and the two ends of the elastic member are respectively connected to the bottom wall of the top rod and the bottom wall of the sleeve.

[0017] Furthermore, a guide groove is provided on the top rod, the bottom end of the guide groove is connected to the sleeve, the elastic member is fixedly connected to the top rod, a cavity connected to the guide groove is provided on the elastic member, and air holes connected to the outside are evenly inclined on the side walls of the guide groove.

[0018] Further, the mounting plate friction pad is made of rubber material.

[0019] Compared with the prior art, the present invention has the following beneficial effects: (1) In this scheme, the circular sleeve, ball bearings and rollers cooperate with each other. At the moment when the contact part between the steel structure and the extrusion block is deformed, the steel structure has a tendency to move toward the extrusion block. At this time, under the action of friction, the steel structure drives the circular sleeve to rotate toward the extrusion block, thereby preventing the steel structure from sliding on the surface of the circular sleeve, thereby reducing the wear of the circular sleeve and playing a role in protecting the circular sleeve. In the subsequent detection process, it can ensure that the steel structure being tested is in a straightened state and that the extrusion block can provide vertical downward pressure to the steel structure, thereby improving the accuracy of the detection.

[0020] (2) This scheme uses the mutual cooperation of the mounting plate, the clamping plate, and the elastic membrane to limit the position of the steel structure through the clamping plate, thereby preventing the steel structure from shifting when it is subjected to the pressure of the extrusion block. When the extruded part of the steel structure is deformed, under the action of the elastic membrane, the part where the steel structure contacts the clamping plate drives the clamping plate to slide at any position on the surface of the mounting plate, thereby reducing the friction force on the steel structure on the vertical surface and further reducing the measurement error.

[0021] (3) In this scheme, the lubricating mechanism, the pressurizing mechanism and the conduit cooperate with each other, and the lubricating oil in the guide cavity is discharged through the conduit and the drain valve, and flows into the movable groove on the top wall of the roller, and then overflows from the movable groove. At this time, the lubricating oil overflowing from the movable groove will flow downward along the outer wall of the roller. During the flow process, the lubricating oil contacts the remaining balls, thereby improving the lubrication effect on the balls, further reducing the friction force on the annular sleeve, and improving the protection effect on the annular sleeve, that is, playing a role in reducing measurement errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 3 It is a schematic diagram of the back structure of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at B in the middle; Figure 5 It is a cross-sectional structural diagram of the support plate and the roller of the present invention; Figure 6 It is a schematic diagram of the combined structure of the telescopic rod and the clamping block of the present invention; Figure 7It is a schematic diagram of the combined cross-sectional structure of the extrusion block and the friction pad of the present invention.

[0023] Description of the numbers in the figure: 1. Base; 2. Bracket; 3. Hydraulic cylinder; 4. Extrusion block; 5. Support plate; 6. Roller; 7. Ring sleeve; 8. Ball; 9. Bidirectional threaded rod; 10. Mounting plate; 11. Guide rod; 12. Electromagnetic brake motor; 13. Elastic membrane; 14. Diversion chamber; 15. Conduit; 16. Inlet valve; 17. Drain valve; 18. Friction pad; 19. Pressurized chamber; 20. Air pipe; 21. Telescopic rod; 2101. Sleeve; 2102. Push rod; 2103. Elastic part; 22. Block; 23. Cavity; 24. Diversion groove; 25. Air hole; 26. Clamp. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0025] Example 1: Please refer to Figures 1 to 7 , a steel structure detection device for construction engineering, comprising a base 1, a bracket 2 is fixedly installed on the side wall of the base 1, a hydraulic cylinder 3 with an output end downward is fixedly installed on the bracket 2, a display is provided on the bracket 2, the display is used to display the pressure value provided by the output end of the hydraulic cylinder 3, and an extrusion block 4 is installed on the output end of the hydraulic cylinder 3; wherein, a pressure sensor such as an oil pressure gauge, a pressure transmitter, etc. is installed on the inlet and outlet oil lines of the hydraulic cylinder 3, which can measure and display the pressure change in the hydraulic cylinder 3 in real time, and the pressure value can be read intuitively by electrically connecting the oil pressure gauge or the pressure transmitter to the display. This method of reading the pressure value provided by the output end of the hydraulic cylinder 3 is a prior art and will not be repeated; Two support plates 5 are vertically and symmetrically fixedly installed on the top wall of the base 1. The support plates 5 are symmetrically distributed on both sides of the bracket 2. Installation grooves are symmetrically provided on the side walls of the adjacent sides of the support plates 5. The installation grooves penetrate the top walls of the support plates 5 to facilitate the placement of steel bars in the installation grooves. Rollers 6 are fixedly installed in the installation grooves. A circular ring sleeve 7 is rotatably sleeved on the outer wall of the roller 6. The outer surface of the circular ring sleeve 7 is evenly provided with anti-skid patterns. When the steel structure contacts the outer wall of the circular ring sleeve 7, the friction between the steel structure and the circular ring sleeve 7 can be increased by the anti-skid patterns. The inner wall of the circular ring sleeve 7 is a mirror surface. When the circular ring sleeve 7 rotates, the friction between the circular ring sleeve 7 and the roller 6 can be reduced; balls 8 are evenly and movably embedded on the outer wall of the roller 6. The balls 8 roll with the inner wall of the circular ring sleeve 7 to further reduce the resistance encountered when the circular ring sleeve 7 rotates, and a lubrication mechanism for lubricating the balls 8 is provided on the support plate 5.

[0026] First, the steel structure to be tested is straightened and placed in the installation groove, so that the part of the steel structure to be compressed is directly below the extrusion block 4, and then the steel structure is placed on the top wall of the annular sleeve 7, and the hydraulic cylinder 3 is started. At this time, the output end of the hydraulic cylinder 3 drives the extrusion block 4 to apply pressure to the part of the steel structure to be compressed until the steel structure bends. At the moment the steel structure bends, the pressure resistance of the steel structure can be understood through the data displayed on the display.

[0027] Since the outer wall of the circular ring sleeve 7 is evenly provided with anti-skid patterns, there is a large friction force between the circular ring sleeve 7 and the steel structure.

[0028] At the moment when the contact portion between the steel structure and the extrusion block 4 is deformed, the steel structure tends to move toward the extrusion block 4. At this time, under the action of friction, the steel structure drives the annular sleeve 7 to rotate toward the extrusion block 4, thereby preventing the steel structure from sliding on the surface of the annular sleeve 7, thereby reducing the degree of wear of the annular sleeve 7 and protecting the annular sleeve 7. Therefore, in the subsequent detection process, it can be ensured that the detected steel structure is in a straightened state, and that the extrusion block 4 can provide vertical downward pressure to the steel structure, thereby improving the accuracy of the detection.

[0029] like Figure 4 As shown, a bidirectional threaded rod 9 penetrating the mounting groove is horizontally and rotatably inserted on the support plate 5, the bidirectional threaded rod 9 is perpendicular to the side wall of the mounting groove, two mounting plates 10 are threadedly installed on the bidirectional threaded rod 9, and a clamping plate 26 is slidably installed on the side walls of the adjacent sides of the two mounting plates 10 in the same mounting groove, and a guide rod 11 is fixedly installed on the side walls on the opposite sides of the mounting groove, the guide rod 11 penetrates the mounting plate 10, and the mounting plate 10 is slidably sleeved on the guide rod 11, so that the rotation of the mounting plate 10 can be limited by the guide rod 11, ensuring that the mounting plate 10 can be driven to move along the bidirectional threaded rod 9 during the rotation of the bidirectional threaded rod 9, and an electromagnetic brake motor 12 for driving the bidirectional threaded rod 9 to rotate is fixedly installed on the support plate 5, and the power output end of the electromagnetic brake motor 12 is fixedly connected to the end of the bidirectional threaded rod 9.

[0030] Among them, the electromagnetic brake motor 12 has a self-locking function, which is a prior art and is only briefly described without further elaboration. The self-locking principle is: when the motor is powered on, the electromagnet generates magnetic force to attract the locking device, so that the motor can work normally; when the motor stops powering on, the electromagnet loses its magnetic force, and the locking device will automatically lock the motor.

[0031] like Figure 4As shown, an elastic membrane 13 is fixedly mounted on the side wall of the mounting plate 10, a clamping plate 26 is embedded in the elastic membrane 13, and the clamping plate 26 penetrates the elastic membrane 13, and lubricating oil is filled in the space between the elastic membrane 13 and the mounting plate 10, thereby reducing the friction between the clamping plate 26 and the mounting plate 10.

[0032] When the steel structure is placed on the surface of the annular sleeve 7, the electromagnetic brake motor 12 is started. At this time, the electromagnetic brake motor 12 drives the bidirectional threaded rod 9 to rotate. At this time, under the limiting action of the guide rod 11, the two mounting plates 10 approach each other until the clamping plate 26 contacts the side wall of the steel structure. At this time, the electromagnetic brake motor 12 is powered off, so the position of the steel structure can be limited by the clamping plate 26 to prevent the steel structure from shifting when it is subjected to the pressure of the extrusion block 4, thereby reducing the detection error.

[0033] When the squeezed part of the steel structure is deformed, under the action of the elastic membrane 13, the part of the steel structure in contact with the clamping plate 26 drives the clamping plate 26 to slide at any position on the surface of the mounting plate 10, reducing the friction force on the steel structure on the vertical surface and further reducing the measurement error.

[0034] like Figure 5 As shown, movable grooves are evenly formed on the outer wall of the roller 6, and the ball 8 is movably embedded in the movable grooves; a guide cavity 14 is formed on the roller 6, and the guide cavity 14 is filled with lubricating oil. A conduit 15 is inserted on the top wall of the guide cavity 14, and the top end of the conduit 15 extends to the movable groove located in the top wall of the roller 6, and the bottom end of the conduit 15 is located below the liquid level of the lubricating oil in the guide cavity 14; The lubrication mechanism includes an inlet valve 16 fixedly embedded in the side wall of the guide cavity 14, the input end of the inlet valve 16 extends to the surface of the bottom wall of the roller 6, a drain valve 17 is embedded in the conduit 15, the input end of the drain valve 17 is connected to the guide cavity 14, and a pressurizing mechanism for pressurizing the guide cavity 14 is provided on the support plate 5.

[0035] A groove is provided on the bottom wall of the extrusion block 4, in which a friction pad 18 made of elastic material is fixedly installed, and the ratio of the groove volume to the volume of the friction pad 18 is 1.3-1.5, so the groove can accommodate the friction pad 18, and the bottom wall of the friction pad 18 is located outside the groove.

[0036] When the extrusion block 4 applies pressure to the steel structure, the friction pad 18 is in a deformed state and gradually retracts into the groove. At this time, the extruded friction pad 18 has a tendency to recover, so the friction pad 18 is in close contact with the top wall of the steel structure, thereby increasing the friction force on the steel structure. When the extrusion block 4 applies pressure to the steel structure, the probability of the steel structure shaking can be reduced, thereby improving the accuracy of detection.

[0037] like Figure 5 , Figure 7As shown, the pressurizing mechanism includes a pressurizing chamber 19 opened on the friction pad 18 , and an air pipe 20 extending into the guide chamber 14 is inserted on the side wall of the pressurizing chamber 19 . The air pipe 20 is located above the lubricating oil level in the guide chamber 14 .

[0038] When the friction pad 18 is squeezed, the pressurized chamber 19 is in a high-pressure state. At this time, the high-pressure gas is discharged into the guide chamber 14 through the air pipe 20. The lubricating oil in the guide chamber 14 is discharged through the conduit 15 and the drain valve 17, and flows into the movable groove on the top wall of the roller 6, and then overflows from the movable groove. At this time, the lubricating oil overflowing from the movable groove will flow downward along the outer wall of the roller 6. During the flow process, the lubricating oil contacts the remaining balls 8, thereby improving the lubrication effect on the balls 8, further reducing the friction force on the annular sleeve 7, and improving the protection effect on the annular sleeve 7, that is, it plays a role in reducing the measurement error.

[0039] When the elastic friction pad 18 is restored, the pressure chamber 19 is in a negative pressure state, and the guide chamber 14 is also in a negative pressure state. Therefore, the guide chamber 14 absorbs lubricating oil from the position between the inner wall of the annular sleeve 7 and the outer wall of the roller 6 through the water inlet valve 16, so all the balls 8 can be lubricated during each detection process.

[0040] like Figure 5 , Figure 6 As shown, a telescopic rod 21 is vertically fixedly installed on the bottom wall of the installation groove, and a clamping block 22 is fixedly installed on the top wall of the output end of the telescopic rod 21. The side wall of the clamping block 22 close to the extrusion block 4 is an inclined surface.

[0041] The telescopic rod 21 includes a sleeve 2101, a top rod 2102 and an elastic member 2103; the top end of the sleeve 2101 is open, the top rod 2102 is vertically slidably inserted in the sleeve 2101, the elastic member 2103 is arranged in the sleeve 2101, and the two ends of the elastic member 2103 are respectively connected to the bottom wall of the top rod 2102 and the inner bottom wall of the sleeve 2101.

[0042] When the top of the block 22 is facing the anti-skid groove, the tip of the top of the block 22 is inserted into the recessed part of the anti-skid groove. When the steel structure drives the annular sleeve 7 to rotate, the side wall of the anti-skid groove applies a horizontal thrust to the inclined surface on the block 22, and the thrust is decomposed in the direction along the inclined surface and the vertical downward direction. Under the action of the vertical downward component, the push rod 2102 retracts into the sleeve 2101, and the elastic member 2103 is squeezed. As the annular sleeve 7 rotates, the push rod 2102 gradually retracts into the sleeve 2101, and then the block 22 breaks away from the anti-skid groove and contacts the outer wall of the annular sleeve 7 until the next anti-skid groove moves to the surface of the block 22. At this time, the elastic member 2103 pushes the push rod 2102 and the block 22 to move up, and the block 22 enters the anti-skid groove. Therefore, during the rotation of the annular sleeve 7, the block 22 enters each anti-skid groove in turn.

[0043] When the annular sleeve 7 stops rotating, the elastic member 2103 recovers and pushes the push rod 2102 to extend out of the sleeve 2101. Therefore, under the action of the side wall of the planar side of the block 22, the annular sleeve 7 can be prevented from reversing, ensuring that the annular sleeve 7 always rotates in the same direction.

[0044] The balls 8 at the contact point between the annular sleeve 7 and the steel structure will generate heat due to friction and transfer the heat to the annular sleeve 7 at the moment when the annular sleeve 7 is driven to rotate by the steel structure; therefore, during frequent operation, by making the annular sleeve 7 rotate in one direction, a certain part of the annular sleeve 7 can be prevented from continuously absorbing heat, thereby ensuring the hardness of the annular sleeve 7, reducing the probability of deformation of the annular sleeve 7 due to heat, and improving the protection effect of the annular sleeve 7, that is, ensuring that the subsequent steel structure can be straightened during detection, thereby reducing detection errors.

[0045] A guide groove 24 is provided on the top rod 2102, the bottom end of the guide groove 24 is connected to the sleeve 2101, the elastic member 2103 is fixedly connected to the top rod 2102, a cavity 23 connected to the guide groove 24 is provided on the elastic member 2103, and air holes 25 connected to the outside are evenly inclined on the side wall of the guide groove 24.

[0046] When the push rod 2102 retracts into the sleeve 2101 and squeezes the elastic member 2103, the gas in the cavity 23 passes through the guide groove 24 and is discharged through the air hole 25. At this time, the gas discharged from the air hole 25 impacts the surface of the annular sleeve 7, thereby increasing the air flow rate around the annular sleeve 7, allowing the annular sleeve 7 to contact with the low-temperature gas, thereby improving the heat dissipation effect of the annular sleeve 7, and then increasing the temperature difference between the annular sleeve 7 and the ball 8, assisting the heat dissipation of the ball 8, ensuring that the metal ball 8 and the annular sleeve 7 can maintain a hard state, reducing the probability of deformation of the annular sleeve 7 and the ball 8, so that the steel structure can be straightened and the detection error is reduced.

[0047] like Figure 7 As shown, the friction pad 18 of the mounting plate 10 is made of a rubber material.

[0048] Since the rubber material has good elasticity, for steel structures with uneven surfaces, when the friction pad 18 is squeezed, part of the friction pad 18 will be embedded in the recessed part of the surface of the steel structure, thereby increasing the contact area between the friction pad 18 and the steel structure and improving the fixing effect on the steel structure.

[0049] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A construction engineering steel structure detection device, comprising a base (1), a bracket (2) being mounted on a side wall of the base (1), and a hydraulic cylinder (3) being mounted on the bracket (2); Features: An extrusion block (4) is installed on the output end of the hydraulic cylinder (3), two support plates (5) are vertically and symmetrically fixedly installed on the top wall of the base (1), and the support plates (5) are symmetrically distributed on both sides of the bracket (2). The side walls of the adjacent sides of the support plates (5) are symmetrically provided with installation grooves, and the installation grooves penetrate the top wall of the support plates (5) to facilitate the placement of steel bars into the installation grooves. A roller (6) is fixedly installed in the installation groove, and a circular ring (7) is rotatably sleeved on the outer wall of the roller (6), and the outer surface of the circular ring (7) is evenly provided with anti-slip patterns. When the steel structure contacts the outer wall of the annular sleeve (7), the anti-slip pattern can increase the friction between the steel structure and the annular sleeve (7); the inner wall of the annular sleeve (7) is a mirror surface, and when the annular sleeve (7) rotates, the friction between the annular sleeve (7) and the roller (6) can be reduced; balls (8) are evenly and movably embedded on the outer wall of the roller (6); the balls (8) and the inner wall of the annular sleeve (7) are in rolling cooperation, further reducing the resistance encountered by the annular sleeve (7) when rotating; and a lubrication mechanism for lubricating the balls (8) is provided on the support plate (5).

2. A construction engineering steel structure detection device according to claim 1, characterized in that: A bidirectional threaded rod (9) penetrating the mounting groove is inserted and rotatably mounted horizontally on the support plate (5); two mounting plates (10) are threadedly mounted on the bidirectional threaded rod (9); clamping plates (26) are slidably mounted on the side walls of the two mounting plates (10); a guide rod (11) is fixedly mounted on the side walls on the opposite side of the mounting groove; the guide rod (11) penetrates the mounting plate (10); and an electromagnetic brake motor (12) for driving the bidirectional threaded rod (9) to rotate is fixedly mounted on the support plate (5).

3. A construction engineering steel structure detection device according to claim 2, characterized in that: An elastic membrane (13) is fixedly mounted on the side wall of the mounting plate (10), the clamping plate (26) is embedded in the elastic membrane (13), and the clamping plate (26) penetrates the elastic membrane (13).

4. A construction engineering steel structure detection device according to claim 3, characterized in that: The outer wall of the roller (6) is evenly provided with movable grooves, and the balls (8) are movably embedded in the movable grooves; the roller (6) is provided with a flow guide cavity (14), and a guide tube (15) is inserted on the top wall of the flow guide cavity (14), the top end of which extends to the movable groove located on the top wall of the roller (6); The lubrication mechanism comprises a water inlet valve (16) fixedly embedded in the side wall of the guide cavity (14), the input end of the water inlet valve (16) extending to the surface of the bottom wall of the roller (6), a drain valve (17) embedded in the conduit (15), the input end of the drain valve (17) communicating with the guide cavity (14), and a pressurizing mechanism for pressurizing the guide cavity (14) is provided on the support plate (5).

5. A construction engineering steel structure detection device according to claim 4, characterized in that: A groove is provided on the bottom wall of the extrusion block (4), and a friction pad (18) made of elastic material is fixedly installed in the groove.

6. A construction engineering steel structure detection device according to claim 5, characterized in that: The pressurizing mechanism comprises a pressurizing chamber (19) formed on the friction pad (18), and an air pipe (20) extending into the guide chamber (14) is inserted into the side wall of the pressurizing chamber (19).

7. A construction engineering steel structure detection device according to claim 6, characterized in that: A telescopic rod (21) is vertically fixedly mounted on the bottom wall of the mounting groove, a clamping block (22) is fixedly mounted on the top wall of the output end of the telescopic rod (21), and a side wall of the clamping block (22) close to the extrusion block (4) is an inclined surface.

8. A construction engineering steel structure detection device according to claim 7, characterized in that: The telescopic rod (21) comprises a sleeve (2101), a top rod (2102) and an elastic member (2103); the top end of the sleeve (2101) is open, the top rod (2102) is vertically slidably inserted in the sleeve (2101), the elastic member (2103) is arranged in the sleeve (2101), and the two ends of the elastic member (2103) are respectively connected to the bottom wall of the top rod (2102) and the inner bottom wall of the sleeve (2101).

9. A construction engineering steel structure detection device according to claim 8, characterized in that: The top rod (2102) is provided with a guide groove (24), the bottom end of the guide groove (24) is connected to the sleeve (2101), the elastic member (2103) is fixedly connected to the top rod (2102), the elastic member (2103) is provided with a cavity (23) connected to the guide groove (24), and the side wall of the guide groove (24) is evenly inclined with air holes (25) connected to the outside.

10. A construction engineering steel structure detection device according to claim 2, characterized in that: The friction pad (18) of the mounting plate (10) is made of rubber material.

Images