Building steel structure strength detection device

Abstract

The invention relates to the field of steel structure strength detection, in particular to a building steel structure strength detection device which comprises a holding barrel, a flaw detection pen and the like. According to the device for detecting the strength of the building steel structure, the rotating frame is matched with the limiting ring to control the polishing brush to polish and grind a specified small-range area in a coating on the surface of the building steel structure, and then the flaw detection pen can be directly pushed outwards to be tightly attached to the surface of the building steel structure for detection work; and a grinding piece with higher hardness can be installed on the limiting ring to polish and grind a cement hard block layer on the surface of the building steel structure, in addition, chippings generated by grinding are sucked away in time through a suction machine and a suction hole structure on the limiting ring, and the smoke-free environment-friendly construction effect is achieved. The technical problems that the grinding range is excessive and the surface of the steel structure is damaged due to the fact that carried grinding equipment is directly used for polishing and grinding a coating or a cement hard block layer on the surface of the steel structure are solved.

Description

Technical Field

[0001] The invention relates to the field of steel structure strength detection, and in particular to a building steel structure strength detection device. Background Art

[0002] The strength test of steel structures of existing buildings is a complex and important task. Its purpose is to evaluate the bearing capacity, material properties and structural safety of steel structures. Generally, non-destructive testing methods (such as ultrasonic testing, magnetic particle testing, etc.) are used to detect surface or internal defects of steel structures. In this step, the flaw detection pen only needs to be pressed tightly on the surface of the steel structure to detect the surface and internal defects of the steel structure. However, in some cases, such as when there is a coating or cement block layer containing ferromagnetic raw materials (such as coarse and fine aggregates, admixtures or metal fibers) on the surface of the steel structure, these ferromagnetic raw materials will interfere with the instrument, resulting in inaccurate or wrong test results. In order to ensure the accuracy of the test results, the protective layer needs to be removed to avoid interference. Therefore, it is necessary to carry additional grinding equipment to polish and grind the coating or cement block layer on the surface of the steel structure, so that the surface of the steel structure is exposed to the external environment for testing. The overall processing steps are cumbersome; In addition, directly using the carried grinding equipment to polish and grind the coating or cement block layer on the surface of the steel structure will result in excessive grinding range, which will require more raw materials to be consumed in the subsequent restoration work of the coating or cement block layer on the surface of the steel structure. Moreover, when the coating thickness on the surface of the steel structure is thin, if the grinding equipment continues to maintain high-speed grinding after completing the coating polishing and grinding treatment, irreparable damage will be caused to the surface of the steel structure. Summary of the invention

[0003] In order to overcome the disadvantages of excessive grinding range and damage to the surface of the steel structure when directly using portable grinding equipment to polish and grind the coating or cement block layer on the surface of the steel structure, the present invention provides a building steel structure strength detection device.

[0004] Technical solution: A building steel structure strength detection device, including a grip tube, a flaw detection pen, a push block, an external compression spring, a rotating frame, a spur gear ring, a motor, a spur gear, a sliding ring, a sleeve ring, a handle, a pressure ring and a polishing brush; the flaw detection pen is slidably connected in the grip tube; the flaw detection pen is fixedly connected to the push block; the external compression spring is fixedly connected between the push block and the grip tube; the grip tube is connected to the rotating frame when it rotates upward; the rotating frame is fixedly connected to the spur gear ring; the grip tube is fixedly connected to the motor; the output shaft of the motor is fixedly connected to the spur gear; the spur gear is meshed with the spur gear ring; the sliding ring is slidably connected to the rotating frame; the sliding ring is rotatably connected to the sleeve ring; the handle is fixedly connected to the sleeve ring; the polishing brush is fixedly connected to the sliding ring; the rotating frame is rotatably connected to the pressure ring.

[0005] More preferably, an anti-slip ring is fixedly connected to the pressure ring.

[0006] More preferably, the anti-slip ring is made of a porous material of absorbent cotton.

[0007] More preferably, a limit ring is fixedly connected to the rotating frame; a plurality of main plug rods are fixedly connected to the sliding ring; a main plug hole structure corresponding to the number and position of the main plug rods is provided on the limit ring; and a first cone bucket structure is provided on the side of the limit ring close to the polishing brush.

[0008] More preferably, a second cone structure is provided on a side of the limiting ring away from the polishing brush.

[0009] More preferably, a push ring is slidably connected inside the main socket structure; and an internal compression spring is fixedly connected between the push ring and the corresponding main socket structure.

[0010] More preferably, a suction machine is fixedly connected to the grip tube; the suction port of the suction machine is connected to a telescopic tube; an annular groove structure is commonly provided between the sliding ring and the sleeve ring; the telescopic tube is fixed to the sleeve ring, and the telescopic tube is connected to the annular groove structure on the sleeve ring; a through hole structure connected to the annular groove structure on the sliding ring is provided on the main insertion rod; the main insertion hole structure is provided with a main suction hole structure that penetrates the limiting ring, and the main suction hole structure is located in the second cone bucket structure of the limiting ring.

[0011] More preferably, the main suction hole structure is provided with a side suction hole structure penetrating to the inner annular surface of the limiting ring.

[0012] More preferably, a grinding sheet is provided on the push block, and the grinding sheet is inserted on the push block through a side insertion rod; and a side insertion hole structure for inserting the side insertion rod of the grinding sheet is provided on the limiting ring.

[0013] More preferably, a discharge groove structure is provided on the side edge of the grinding sheet.

[0014] Beneficial effects of the present invention: a building steel structure strength detection device of the present invention has a retractable flaw detection pen in a grip tube, and a polishing brush and a limit ring are connected to the grip tube through a rotating frame. The polishing brush is first controlled by the rotating frame in cooperation with the limit ring to polish and grind a specified small area in the surface coating of the building steel structure, and then the flaw detection pen can be directly pushed outward to close to the surface of the building steel structure for detection, without switching back and forth and repositioning and calibrating between multiple devices, and without worrying about over-polishing of the coating on the surface of the building steel structure. A grinding sheet with higher hardness can also be installed on the limit ring to polish and grind the cement block layer on the surface of the building steel structure. In addition, the debris generated by grinding can be sucked away in time through the suction machine and the suction hole structure on the limit ring, so as to achieve a smokeless and environmentally friendly construction effect.

[0015] Therefore, the use of a building steel structure strength detection device of the present invention can avoid directly using a portable grinding equipment to polish and grind the coating or cement block layer on the surface of the steel structure, which may cause excessive grinding and damage to the surface of the steel structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a building steel structure strength detection device of the present invention; Figure 2 This is a cross-sectional structural diagram of a grip tube of a building steel structure strength detection device of the present invention; Figure 3 This is a cross-sectional structural diagram of a limit ring of a building steel structure strength detection device of the present invention; Figure 4 This is a structural diagram of a limit ring of a building steel structure strength detection device of the present invention; Figure 5 This is a push block structure diagram of a building steel structure strength detection device of the present invention; Figure 6 This is a structural diagram of a grinding sheet of a building steel structure strength detection device according to the present invention.

[0017] The above drawings include the following drawing marks: 11-grip tube, 12-flaw detection pen, 13-push block, 14-external compression spring, 2-rotating frame, 21-spur gear ring, 22-motor, 23-spur gear, 24-sliding ring, 2401-annular groove structure, 241-ring, 242-handle, 243-main plug rod, 24301-through hole structure, 25-pressure ring, 26-anti-slip ring, 3-polishing brush, 4-limiting ring, 401-main plug hole structure, 402-first cone bucket structure, 403-second cone bucket structure, 404-main suction hole structure, 405-side suction hole structure, 406-side plug hole structure, 41-push ring, 42-internal compression spring, 5-suction machine, 51-telescopic tube, 6-grinding sheet, 601-discharge trough structure, 61-side plug rod. DETAILED DESCRIPTION

[0018] The present invention will now be described more fully below with reference to the accompanying drawings, in which currently preferred embodiments of the present invention are shown. However, the present invention may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and these embodiments fully convey the scope of the present invention to the skilled person.

[0019] Example 1 A building steel structure strength detection device, such as Figure 1-Figure 4As shown, it includes a grip tube 11, a flaw detection pen 12, a push block 13, an external compression spring 14, a rotating frame 2, a spur gear ring 21, a motor 22, a spur gear 23, a sliding ring 24, a sleeve ring 241, a handle 242, a pressure ring 25 and a polishing brush 3; the flaw detection pen 12 is slidably connected in the grip tube 11, and the head end of the flaw detection pen 12 is initially hidden in the grip tube 11; the push block 13 is fixedly connected to the tail end of the flaw detection pen 12; the external compression spring 14 is fixedly connected between the push block 13 and the grip tube 11, and the external compression spring 14 is sleeved on the outer surface of the flaw detection pen 12; A rotating frame 2 is rotatably connected to the grip tube 11 on one side of the front end of the flaw detection pen 12; a spur gear ring 21 is fixedly connected to the rotating frame 2; a motor 22 is fixedly connected to the grip tube 11; a spur gear 23 is fixedly connected to the output shaft of the motor 22; the spur gear 23 meshes with the spur gear ring 21; a sliding ring 24 is slidably connected to the rotating frame 2; a sleeve ring 241 is rotatably connected to the sliding ring 24; a handle 242 is fixedly connected to the sleeve ring 241; a polishing brush 3 is fixedly connected to the sliding ring 24; a pressure ring 25 is rotatably connected to the end of the rotating frame 2 away from the flaw detection pen 12.

[0020] like Figure 2 As shown, an anti-skid ring 26 is fixedly connected to the pressure ring 25; the anti-skid ring 26 is made of a porous material of absorbent cotton that can absorb ink oil.

[0021] like Figure 2-Figure 4 As shown, a limit ring 4 is fixedly connected to the rotating frame 2; a plurality of main plug rods 243 are fixedly connected to the sliding ring 24; a main socket structure 401 corresponding to the number and position of the main plug rods 243 is provided on the limit ring 4; a first cone bucket structure 402 is provided on the side of the limit ring 4 close to the polishing brush 3, and the polishing brush 3 is initially wrapped in the first cone bucket structure 402 of the limit ring 4; a second cone bucket structure 403 is provided on the side of the limit ring 4 away from the polishing brush 3; a push ring 41 is slidably connected in each main socket structure 401; an internal compression spring 42 is fixedly connected between each push ring 41 and the corresponding main socket structure 401.

[0022] In the work of using a building steel structure strength detection device of the present invention, the operator first needs to hold the handle 11 to control the anti-slip ring 26 on the pressure ring 25 to complete a squeezing action in the ink liquid box, so that the anti-slip ring 26 of the absorbent cotton porous material can absorb the ink liquid. The operator then holds the handle 11 to control the pressure ring 25 and the anti-slip ring 26 to press on the coating on the surface of the building steel structure, and transfers the ink liquid absorbed in the anti-slip ring 26 to the current position of the coating on the surface of the building steel structure, so that there is a marking circle formed by the ink liquid in this area on the coating on the surface of the building steel structure, so that a conspicuous detection mark appears on the coating on the surface of the building steel structure.

[0023] Then the operator holds the handle 11 to control the pressing ring 25 and the anti-slip ring 26 to press on the same position on the coating on the surface of the building steel structure. The operator then turns on the motor 22 to drive the spur gear 23 to rotate. The spur gear 23 engages with the spur gear ring 21 to drive the rotating frame 2 and the sliding ring 24, polishing brush 3 and limit ring 4 connected thereto to rotate. At the same time, the operator holds the handle 242 to push the sleeve ring 241 to drive the sliding ring 24 and the polishing brush 3 to move along the rotating frame 2 toward the limit ring 4, so that the polishing brush 3 moves toward the middle along the first cone bucket structure 402 of the limit ring 4, so that the polishing brush 3 can move toward the center. All the bristles of the brush 3 are squeezed against each other to form a dense state and tightly adhere to the coating on the surface of the building steel structure. The rotating polishing brush 3 polishes and grinds the coating on the surface of the building steel structure. At the same time, the sliding ring 24 drives the main plug rod 243 to insert into the corresponding main plug hole structure 401 on the limit ring 4 until the main plug rod 243 is tightly against the push ring 41. Since the push ring 41 is blocked by the internal compression spring 42, if the operator continues to push the sleeve ring 241 to drive the sliding ring 24 and the polishing brush 3 to move forward, he will feel obvious movement resistance from the internal compression spring 42.

[0024] If the coating thickness on the surface of the building steel structure is relatively thin, the polishing brush 3 only needs to be closely attached to the surface of the building steel structure to complete the polishing and grinding of the coating. Then the operator promptly pulls the sleeve ring 241 to drive the sliding ring 24 and the polishing brush 3 to move backward and reset, thereby preventing the polishing brush 3 from continuing to move forward from scratching the surface of the steel structure.

[0025] If the coating thickness on the surface of the building steel structure is thicker, the operator continues to slowly push the collar 241 to drive the sliding ring 24 and the polishing brush 3 to move along the rotating frame 2 toward the limit ring 4, and the polishing brush 3 continues to move forward to polish and grind the remaining coating on the surface of the building steel structure. At the same time, the main insert rod 243 pushes the push ring 41 to drive the internal compression spring 42 to compress. When the polishing brush 3 completes the polishing and grinding of the remaining coating on the surface of the building steel structure, since the bristles of the polishing brush 3 are relatively soft and the hardness of the surface of the building steel structure is much stronger than the hardness of the coating, the bristles of the polishing brush 3 will be blocked by the surface of the building steel structure and spread around along the second cone structure 403 of the limit ring 4, reducing the extrusion of the surface of the building steel structure caused by the bristles of the polishing brush 3 while continuing to be pushed forward, thereby reducing the scratches caused by the bristles of the polishing brush 3 on the surface of the building steel structure. After that, the operator promptly pulls the collar 241 to drive the sliding ring 24 and the polishing brush 3 to move backward and reset.

[0026] After finishing the polishing and grinding treatment of the surface coating of the building steel structure, there is a local exposed area on the surface of the building steel structure with an area smaller than the pressure ring 25. Finally, the operator turns off the motor 22 and no longer drives the rotating frame 2 and the sliding ring 24, polishing brush 3 and limit ring 4 connected thereto to rotate. Then, the push block 13 drives the flaw detection pen 12 to be pushed out along the grip tube 11 toward the limit ring 4 until it is close to the local exposed area on the surface of the building steel structure for detection. There is no need to switch back and forth and reposition and calibrate between multiple devices, and there is no need to worry about over-polishing the coating on the surface of the building steel structure.

[0027] Example 2 On the basis of Example 1, Figure 1-Figure 4 As shown, a suction machine 5 is fixedly connected to the grip tube 11 of this embodiment; a telescopic tube 51 is connected to the suction port of the suction machine 5; an annular groove structure 2401 is commonly provided between the sliding ring 24 and the sleeve ring 241; the telescopic tube 51 is fixedly connected to the sleeve ring 241, and the telescopic tube 51 is connected to the annular groove structure 2401 on the sleeve ring 241; each main plug rod 243 is provided with a through hole structure 24301 connected to the annular groove structure 2401 on the sliding ring 24; each main plug hole structure 401 is provided with a main suction hole structure 404 that penetrates the limit ring 4 toward the side away from the flaw detection pen 12, and the main suction hole structure 404 is located in the second cone bucket structure 403 of the limit ring 4; each main suction hole structure 404 is provided with a plurality of side suction hole structures 405 that penetrate to the inner ring surface of the limit ring 4.

[0028] The operator pushes the handle 242 to make the collar 241 and the sliding ring 24 approach the limiting ring 4 along the rotating frame 2, and the main plug rod 243 on the sliding ring 24 is inserted into the corresponding main plug hole structure 401 on the limiting ring 4. At this time, the telescopic tube 51 on the suction machine 5 is successively connected with the annular groove structure 2401 between the sliding ring 24 and the collar 241, the through hole structure 24301 of the main plug rod 243, the main plug hole structure 401 of the limiting ring 4, the main suction hole structure 404 of the limiting ring 4 and the side suction hole structure 405 of the limiting ring 4, so that the polishing brush on the sliding ring 24 is controlled by the operator. 3 When the coating on the surface of the building steel structure is polished and ground, after the operator turns on the suction machine 5, the suction machine 5 can perform suction work through the main suction hole structure 404 of the limiting ring 4 and the side suction hole structure 405 of the limiting ring 4, so that the coating debris generated during the polishing and grinding process can be promptly sucked away by the suction machine 5 in the main suction hole structure 404 of the limiting ring 4 and the side suction hole structure 405 of the limiting ring 4, respectively, to complete the collection of the debris, so that the entire polishing and grinding work will not throw a large amount of smoke and dust into the air and the ground environment, and achieve an environmentally friendly construction effect.

[0029] Example 3 On the basis of Example 2, Figure 1-Figure 6As shown, a grinding plate 6 is provided on the push block 13 of this embodiment, and the grinding plate 6 is initially inserted on the push block 13 through a side insertion rod 61; a side insertion hole structure 406 for inserting the side insertion rod 61 of the grinding plate 6 is provided on the limiting ring 4; and a plurality of discharge groove structures 601 are provided on the side edge of the grinding plate 6.

[0030] For the building steel structure with a cement block layer on the surface, the cement block layer cannot be polished by only using the polishing brush 3, and a higher hardness grinding sheet 6 is needed to grind the cement block layer. At this time, the operator first pulls out the grinding sheet 6 on the push block 13, and then inserts the grinding sheet 6 into the side plug hole structure 406 of the grinding sheet 6 through the side plug rod 61. The operator then presses the pressure ring 25 and the grinding sheet 6 against the cement block layer on the surface of the building steel structure, and then the operator directly turns on the motor 22 to drive the limit ring The grinding disc 6 on 4 rotates, and the grinding disc 6 polishes and grinds the cement block layer on the surface of the building steel structure, so that the building steel structure blocked by the cement block layer is exposed to the external environment. At the same time, the suction machine 5 performs suction work through the main suction hole structure 404 on the limiting ring 4, and the cement block layer debris polished by the grinding disc 6 can be thrown out into the main suction hole structure 404 of the limiting ring 4 in time through the discharge trough structure 601 on the side edge of the grinding disc 6 so that it can be smoothly sucked away.

[0031] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A building steel structure strength detection device, comprising: a grip tube (11); a flaw detection pen (12) slidably connected inside the grip tube (11); a push block (13) fixedly connected to the flaw detection pen (12); an external compression spring (14) fixedly connected between the push block (13) and the grip tube (11); Its characteristics are: The invention also comprises a rotating frame (2); the gripping tube (11) is connected to the rotating frame (2) in an upwardly rotatable manner; a spur gear ring (21) is fixedly connected to the rotating frame (2); a motor (22) is fixedly connected to the gripping tube (11); an output shaft of the motor (22) is fixedly connected to a spur gear (23); the spur gear (23) is meshed with the spur gear ring (21); a sliding ring (24) is slidably connected to the rotating frame (2); a sleeve ring (241) is rotatably connected to the sliding ring (24); a handle (242) is fixedly connected to the sleeve ring (241); a polishing brush (3) is fixedly connected to the sliding ring (24); and a pressure ring (25) is rotatably connected to the rotating frame (2).

2. A building steel structure strength detection device according to claim 1, characterized in that: An anti-slip ring (26) is fixedly connected to the pressure ring (25).

3. A building steel structure strength detection device according to claim 2, characterized in that: The anti-slip ring (26) is made of a porous material of absorbent cotton.

4. A building steel structure strength detection device according to claim 1, characterized in that: A limit ring (4) is fixedly connected to the rotating frame (2); a plurality of main plug rods (243) are fixedly connected to the sliding ring (24); main plug hole structures (401) corresponding in number and position to the main plug rods (243) are provided on the limit ring (4); and a first cone bucket structure (402) is provided on a side of the limit ring (4) close to the polishing brush (3).

5. A building steel structure strength detection device according to claim 4, characterized in that: A second cone structure (403) is provided on a side of the limiting ring (4) away from the polishing brush (3).

6. A building steel structure strength detection device according to claim 4, characterized in that the main A push ring (41) is slidably connected inside the socket structure (401); an internal compression spring (42) is fixedly connected between the push ring (41) and the corresponding main socket structure (401).

7. A building steel structure strength detection device according to any one of claims 4 to 6, characterized in that: A suction machine (5) is fixedly connected to the grip tube (11); a suction port of the suction machine (5) is connected to a telescopic tube (51); an annular groove structure (2401) is provided between the sliding ring (24) and the sleeve ring (241); the telescopic tube (51) is fixedly connected to the sleeve ring (241), and the telescopic tube (51) is connected to the annular groove structure (2401) on the sleeve ring (241); a through hole structure (24301) connected to the annular groove structure (2401) on the sliding ring (24) is provided on the main insertion rod (243); a main suction hole structure (404) that penetrates the limiting ring (4) is provided on the main insertion hole structure (401), and the main suction hole structure (404) is located in the second cone bucket structure (403) of the limiting ring (4).

8. A building steel structure strength detection device according to claim 7, characterized in that: The main suction hole structure (404) is provided with a side suction hole structure (405) penetrating to the inner ring surface of the limiting ring (4).

9. A building steel structure strength detection device according to claim 7, characterized in that: The push block (13) is provided with a grinding sheet (6), and the grinding sheet (6) is inserted into the push block (13) via a side insertion rod (61); the limiting ring (4) is provided with a side insertion hole structure (406) for inserting the side insertion rod (61) of the grinding sheet (6).

10. A building steel structure strength detection device according to claim 9, characterized in that: A material discharge trough structure (601) is provided on the side edge of the grinding sheet (6).

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