Liquefied natural gas (LNG) storage tank steel bar construction quality inspection device and using method thereof

Abstract

The invention relates to the technical field of steel bar quality inspection, and provides an LNG storage tank steel bar construction quality inspection device and a use method thereof.The LNG storage tank steel bar construction quality inspection device comprises a supporting frame, the outer surface of the supporting frame is rotationally connected with a rotating roller, and the outer surface of the supporting frame is connected with a detection structure, a cleaning structure and a simulation structure; the detection structure comprises an electric sliding rail fixedly connected to the outer surface of the supporting frame, an electric sliding block is slidably connected to the outer surface of the electric sliding rail, a detection camera is fixedly connected to the outer surface of the electric sliding block, a protective shell is detachably connected to the outer surface of the rotating roller, and transparent glass is fixedly connected to the upper end of the protective shell. The outer surface of the protective shell is fixedly connected with an air guide piece, the inner side of the protective shell is fixedly connected with a first connecting sleeve, and the outer surface of the first connecting sleeve is connected with a shaft rod in a penetrating mode. By means of the technical scheme, the problems that an existing device between the reinforcement cages is mainly used for detecting the welding quality, and the distance setting of all the reinforcements of the reinforcement cages cannot be detected are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel bar quality inspection, and in particular to a steel bar construction quality inspection device for an LNG storage tank and a use method thereof. Background Art

[0002] The foundation of the natural gas storage tank is a pile foundation. The main structural parts above the pile foundation are the cap, wall and dome. The structural form is a prestressed reinforced concrete cylinder with a steel lining. After the pile foundation is completed, the steel cage needs to be lowered for pouring. When the steel cage is completed, it is necessary to inspect the steel cage, such as the spacing of the main reinforcement, stirrups, and positioning reinforcement, and whether the connection of the sleeve is firm. The LNG tank steel construction quality inspection device is such a device for inspecting the quality of the steel cage.

[0003] After searching, the authorization announcement number is CN115984283B, which is an intelligent detection method for steel cage welding quality. In this invention, the trained neural network recognizes the steel cage welding image to be detected and determines the welding defects.

[0004] However, the above-mentioned existing steel cage quality inspection device is mainly used to inspect the welding quality, and there is no way to inspect the spacing setting of each steel bar in the steel cage. For this reason, we propose an LNG storage tank steel bar construction quality inspection device and a use method thereof. Summary of the invention

[0005] The present invention provides an LNG storage tank steel bar construction quality inspection device and a use method thereof, which solves the problem mentioned in the background technology that the existing steel cage quality inspection device mainly detects the welding quality but has no way to detect the spacing setting of each steel bar in the steel cage.

[0006] The technical solution of the present invention is as follows:

[0007] An LNG tank steel bar construction quality inspection device comprises a support frame, the outer surface of the support frame is rotatably connected to a roller, and the outer surface of the support frame is respectively connected to a detection structure, a cleaning structure and a simulation structure;

[0008] The detection structure comprises an electric slide rail fixedly connected to the outer surface of the support frame, the outer surface of the electric slide rail is slidably connected to an electric slider, the outer surface of the electric slider is fixedly connected to a detection camera, the outer surface of the roller is detachably connected to a protective shell, the upper end of the protective shell is fixedly connected to a transparent glass, the outer surface of the protective shell is fixedly connected to an air guide, the inner side of the protective shell is fixedly connected to a No. 1 connecting sleeve, the outer surface of the No. 1 connecting sleeve is penetrated and connected to a shaft rod, and the outer surface of the shaft rod is fixedly connected to a blade;

[0009] The cleaning structure is used to clean the surface of the transparent glass, and the simulation structure is used to simulate the vibration impact on the steel cage during concrete pouring.

[0010] As a further technical solution of the present invention, the cleaning structure includes a water tank fixedly connected to the outer surface of the supporting frame, the outer surface of the water tank is fixedly connected with a liquid guide tube, the inner side of the liquid guide tube is slidably connected with a movable tube, the surface of the supporting frame is fixedly connected with a fixed frame, the inner surface of the fixed frame is provided with a sliding groove, the inner side of the fixed frame is slidably connected with a sliding plate, one end of the movable tube is provided with a water outlet near the sliding plate, one side surface of the sliding plate is fixedly connected with a No. 1 connecting rod, one end of the No. 1 connecting rod is fixedly connected with a limiting block, the outer surface of the No. 1 connecting rod is sleeved with a pushing spring, one end of the liquid guide tube is connected with a micro pump, the lower end of the sliding plate is fixedly connected with a scraper strip for scraping dust or foreign matter off the surface of the transparent glass, and the outer surface of the sliding plate is respectively provided with a recessed groove and an open groove.

[0011] As a further technical solution of the present invention, the simulation structure includes a fixed plate fixedly connected to the outer surface of the supporting frame, the inner surface of the fixed plate is fixedly connected to an electric cylinder, the outer surface of the electric cylinder is fixedly connected to a No. 2 connecting sleeve, the output end of the electric cylinder is fixedly connected to a pushing piece, and a No. 2 connecting rod is fixedly connected between the No. 2 connecting sleeve and the fixed plate.

[0012] As a further technical solution of the present invention, the outer surface of the support frame is fixedly connected to a No. 1 gear, and the No. 1 gear is used to drive the roller to rotate. The outer surface of the No. 1 gear is meshingly connected to a No. 2 gear, and the No. 2 gear is rotationally connected to the support frame. The outer surface of the support frame is fixedly connected to a main motor that drives the No. 2 gear to rotate, and the outer surface of the support frame is detachably connected to a protective shell for protecting the gears corresponding to the No. 1 gear and the No. 2 gear.

[0013] As a further technical solution of the present invention, the electric slider slides back and forth along the length direction of the electric slide rail, the detection camera is used to detect whether the spacing between the main reinforcement, positioning reinforcement and stirrups of the steel cage meets the design requirements, and monitor whether the sleeve connection of the steel bars meets the requirements, the protective shell is movably connected to the electric slider by screws, the transparent glass is a transparent glass structure, and the air guide is a trumpet opening shaped structure.

[0014] As a further technical solution of the present invention, the shaft rod and the connecting sleeve No. 1 are rotationally connected, the blades are in several groups and distributed in a ring array, the two ends of the shaft rod are arc-shaped hemispherical structures, the connecting sleeve No. 1 is in two groups and is symmetrically distributed, and the inner side of the air guide is connected to the interior of the protective shell.

[0015] As a further technical solution of the present invention, the lower end of the liquid guide tube is fixedly connected to the output end of the micro pump, and the micro pump is fixedly connected to the water tank by screws. Cleaning liquid is provided inside the water tank, and the liquid impacts the movable tube to move away from the liquid guide tube. One end of the liquid guide tube is fixedly connected to the sliding plate, and the sliding plate slides back and forth along the length direction of the slide groove.

[0016] As a further technical solution of the present invention, the pushing spring is used to push the sliding plate to slide toward the water tank, the limit block is used to limit the maximum sliding distance of the sliding plate pushed by the pushing spring, one end of the No. 1 connecting rod passes through the fixed frame, the recessed groove is used to evenly spray the cleaning liquid sprayed from the recessed groove on the surface of the transparent glass in conjunction with the open groove, and the inner surface of the end of the fixed frame away from the liquid guide tube is provided with a hole for the pushing spring to contract, the scraper strip is made of elastic rubber material, the lower end of the scraper strip is lower than the top surface of the transparent glass, and the height below is between 1mm and 3mm.

[0017] As a further technical solution of the present invention, the number of the simulation structures is two and they are symmetrically distributed. The extension and contraction of the electric cylinder realizes the simulated vibration of the pushing part hitting the steel cage. The inner diameter of the No. 2 connecting sleeve matches the outer diameter of the electric cylinder. The number of a group of No. 2 connecting sleeves corresponding to the No. 2 connecting rods is two and they are symmetrically distributed.

[0018] A method for using a LNG storage tank steel bar construction quality inspection device, the method of use includes the following modes:

[0019] Inspection mode: First, place the steel cage to be inspected between two sets of rollers, and then start the inspection mode. At this time, the main motor drives the No. 2 gear to rotate, and the No. 1 gear is driven by the No. 2 gear, and the roller is driven by the No. 1 gear to rotate. The steel cage is driven to rotate slowly through the roller. During the slow rotation, the electric slider drives the inspection camera to move slowly in the length direction of the electric slide rail. The inspection camera determines whether the spacing between the main bars, stirrups and positioning bars of the steel cage meets the requirements, and at the same time, checks whether the sleeve connection between the steel bars is qualified. If qualified, it will be reserved for standby. If unqualified, it will be readjusted for inspection or dismantled and scrapped;

[0020] Vibration detection mode: The electric cylinders on both sides are extended and retracted to make the top parts periodically hit the steel cage, so that the steel cage will vibrate to a certain extent. After the vibration is completed, the electric cylinders are retracted and stopped, and the detection mode is entered again to detect whether it is qualified. The vibration of the steel cage when pouring in the pile hole is simulated through vibration. After passing the test again, it enters the pile hole to start the concrete pouring process;

[0021] Cleaning mode: the protective shell and the transparent glass are driven by the electric slider to move to the bottom of the fixed frame and stop, and the cleaning liquid in the water tank is transported to the inside of the liquid guide tube by starting the micro pump. The cleaning liquid flows into the inside of the movable tube through the liquid guide tube and is finally discharged outward through the water outlet. The cleaning liquid will impact the sliding plate, causing the sliding plate, the No. 1 connecting rod and the limit block to move away from the water tank. At the same time, the pushing spring will be compressed and contracted inside the hole of the fixed frame. In this process, the surface of the transparent glass can be cleaned by the scraper bar, and the cleaning liquid will flow from the recessed groove into the open groove and finally flow to the outer surface of the transparent glass. After that, the micro pump is shut down and the sliding plate is returned under the reaction force of the pushing spring, so that the scraper bar scrapes and cleans the surface of the transparent glass again, so that the surface of the transparent glass remains clean, thereby maintaining the accuracy of the detection camera.

[0022] The working principle and beneficial effects of the present invention are:

[0023] In the present invention, the steel cage to be inspected is first placed between two groups of rollers, and then the inspection mode is started. At this time, the main motor drives the No. 2 gear to rotate, and the No. 1 gear is driven to rotate through the No. 2 gear, and the roller is driven to rotate through the No. 1 gear, and the steel cage is driven to rotate slowly through the roller. During the slow rotation, the electric slider drives the inspection camera to move slowly in the length direction of the electric slide rail, and the inspection camera is used to determine whether the spacing between the main bars, stirrups and positioning bars of the steel cage meets the requirements, and at the same time, the sleeve connection between the steel bars is checked to see whether it is qualified. If it is qualified, it is reserved for standby use, and if it is unqualified, it is readjusted for inspection or dismantled and scrapped;

[0024] While the electric slider slides back and forth along the electric slide rail, wind will enter the interior of the protective shell from the opening of the wind guide, and the wind will be diverted into two groups on the left and right under the action of the detection camera. The wind will blow the blades, causing the blades to rotate, thereby enhancing the flow effect of the wind, which is beneficial to the heat dissipation effect of the detection camera. At the same time, the setting of the transparent glass transparent structure can maintain the detection effect of the detection camera without causing dirt on the lens of the detection camera, and the excellent heat dissipation performance will not cause the formation of water droplets due to uneven temperature inside and outside the protective shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] Figure 1 It is a schematic diagram of the structure of the device of the present invention;

[0027] Figure 2 This is a schematic diagram of the partial structure of the protective shell of the present invention after being disassembled;

[0028] Figure 3It is a schematic diagram of the local structure of the detection structure of the present invention;

[0029] Figure 4 For the present invention Figure 3 A schematic diagram of a local structure cut away from another perspective;

[0030] Figure 5 It is a schematic diagram of the local structure of the cleaning structure of the present invention;

[0031] Figure 6 It is a schematic diagram of the local structure of the cleaning structure of the present invention cut away from another perspective;

[0032] Figure 7 For the present invention Figure 6 A magnified view of the local structure;

[0033] Figure 8 It is a schematic diagram of the local structure cut away at the simulation structure of the present invention.

[0034] In the figure: 1. support frame; 2. roller; 3. detection structure; 31. electric slide rail; 32. electric slider; 33. detection camera; 34. protective shell; 35. transparent glass; 36. air guide; 37. No. 1 connecting sleeve; 38. shaft; 39. blade; 4. cleaning structure; 41. water storage tank; 42. liquid guide tube; 43. movable tube; 44. fixed frame; 45. slide groove; 46. sliding plate; 47. water outlet; 48. No. 1 connecting rod; 49. limit block; 410. push spring; 411. micro pump; 412. scraper; 413. recessed groove; 414. open groove; 5. simulation structure; 51. fixed plate; 52. electric cylinder; 53. push piece; 54. No. 2 connecting sleeve; 55. No. 2 connecting rod; 6. No. 1 gear; 7. No. 2 gear; 8. main motor; 9. protective shell. DETAILED DESCRIPTION

[0035] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1

[0037] like Figure 1 to Figure 4As shown, this embodiment proposes an LNG storage tank steel bar construction quality inspection device, including a support frame 1, the outer surface of the support frame 1 is rotatably connected to a roller 2, and the outer surface of the support frame 1 is respectively connected to a detection structure 3, a cleaning structure 4 and a simulation structure 5; the outer surface of the support frame 1 is fixedly connected to a No. 1 gear 6, the No. 1 gear 6 is used to drive the roller 2 to rotate, the outer surface of the No. 1 gear 6 is meshingly connected to a No. 2 gear 7, the No. 2 gear 7 is rotatably connected to the support frame 1, the outer surface of the support frame 1 is fixedly connected to a main motor 8 that drives the No. 2 gear 7 to rotate, and the outer surface of the support frame 1 is detachably connected to a protective shell 9 for protecting the gears corresponding to the No. 1 gear 6 and the No. 2 gear 7.

[0038] The detection structure 3 includes an electric slide rail 31 fixedly connected to the outer surface of the support frame 1, the outer surface of the electric slide rail 31 is slidably connected to an electric slider 32, the outer surface of the electric slider 32 is fixedly connected to a detection camera 33, the outer surface of the roller 2 is detachably connected to a protective shell 34, the upper end of the protective shell 34 is fixedly connected to a transparent glass 35, the outer surface of the protective shell 34 is fixedly connected to an air guide 36, the inner side of the protective shell 34 is fixedly connected to a No. 1 connecting sleeve 37, the outer surface of the No. 1 connecting sleeve 37 is penetrated and connected to a shaft rod 38, and the outer surface of the shaft rod 38 is fixedly connected to a blade 39;

[0039] The electric slider 32 slides back and forth along the length direction of the electric slide rail 31. The detection camera 33 is used to detect whether the spacing between the main reinforcement, positioning reinforcement and stirrups of the steel cage meets the design requirements, and monitor whether the sleeve connection of the steel bars meets the requirements. The protective shell 34 is movably connected to the electric slider 32 by screws, the transparent glass 35 is a transparent glass structure, and the air guide 36 is a trumpet opening structure.

[0040] The shaft 38 and the No. 1 connecting sleeve 37 are rotationally connected, the number of blades 39 is several groups and distributed in a ring array, the two ends of the shaft 38 are arc-shaped hemispherical structures, the number of the No. 1 connecting sleeve 37 is two groups and is symmetrically distributed, and the inner side of the air guide 36 is connected to the inside of the protective shell 34.

[0041] In this embodiment, during use, the user can first place the steel cage to be tested between the two sets of rollers 2, and then select the following three modes according to the actual needs of the user:

[0042] The detection mode can be realized: first, the steel cage to be detected is placed between the two groups of rollers 2, and then the detection mode is started. At this time, the main motor 8 drives the second gear 7 to rotate, and the first gear 6 is driven to rotate through the second gear 7, and the roller 2 is driven to rotate through the first gear 6, and the steel cage is driven to rotate slowly through the roller 2. During the slow rotation, the electric slider 32 drives the detection camera 33 to move slowly in the length direction of the electric slide rail 31. The detection camera 33 is used to determine whether the spacing between the main bars, stirrups and positioning bars of the steel cage meets the requirements, and at the same time, the sleeve connection between the steel bars is detected to be qualified. If qualified, it is reserved for standby, and if unqualified, it is readjusted for inspection or dismantled and scrapped;

[0043] While the electric slider 32 slides back and forth along the electric slide rail 31, wind will enter the interior of the protective shell 34 from the opening of the wind guide 36, and the wind will be diverted into two groups on the left and right under the action of the detection camera 33. The wind will blow the blades 39, causing the blades 39 to rotate, thereby enhancing the flow effect of the wind, which is beneficial to the heat dissipation effect of the detection camera 33. At the same time, the transparent structure of the transparent glass 35 can maintain the detection effect of the detection camera 33 without causing dirt on the lens part of the detection camera 33, and the excellent heat dissipation performance will not cause the formation of water droplets due to the uneven temperature inside and outside the protective shell 34.

[0044] Example 2

[0045] like Figure 5 to Figure 7 As shown, based on Example 1, a cleaning structure 4 is provided for cleaning the surface of the transparent glass 35, and a simulation structure 5 is provided for simulating the vibration impact on the steel cage during concrete pouring.

[0046] The cleaning structure 4 includes a water tank 41 fixedly connected to the outer surface of the supporting frame 1, a liquid guide tube 42 fixedly connected to the outer surface of the water tank 41, a movable tube 43 slidably connected to the inner side of the liquid guide tube 42, a fixed frame 44 fixedly connected to the surface of the supporting frame 1, a slide groove 45 is provided on the inner surface of the fixed frame 44, a sliding plate 46 is slidably connected to the inner side of the fixed frame 44, a water outlet 47 is provided at one end of the movable tube 43 near the sliding plate 46, a connecting rod No. 1 48 is fixedly connected to the surface of one side of the sliding plate 46, one end of the connecting rod No. 1 48 is fixedly connected to a limiting block 49, a push spring 410 is sleeved on the outer surface of the connecting rod No. 1 48, a micro pump 411 is connected to one end of the liquid guide tube 42, a scraper 412 for scraping dust or foreign matter off the surface of the transparent glass 35 is fixedly connected to the lower end of the sliding plate 46, and a recessed groove 413 and an open groove 414 are respectively provided on the outer surface of the sliding plate 46.

[0047] The lower end of the liquid guide tube 42 is fixedly connected to the output end of the micro pump 411, and the micro pump 411 is fixedly connected to the water tank 41 by screws. Cleaning liquid is arranged inside the water tank 41, and the movable tube 43 is moved away from the liquid guide tube 42 by liquid impact. One end of the liquid guide tube 42 is fixedly connected to the sliding plate 46, and the sliding plate 46 slides back and forth along the length direction of the slide groove 45.

[0048] The pushing spring 410 is used to push the sliding plate 46 to slide toward the water tank 41, the limit block 49 is used to limit the maximum sliding distance of the sliding plate 46 pushed by the pushing spring 410, one end of the No. 1 connecting rod 48 passes through the fixed frame 44, the recessed groove 413 is used to evenly spray the cleaning liquid sprayed from the recessed groove 413 on the surface of the transparent glass 35 in conjunction with the open groove 414, and the inner surface of the end of the fixed frame 44 away from the liquid guide tube 42 is provided with a hole for the pushing spring 410 to contract, the scraper strip 412 is made of elastic rubber material, the lower end of the scraper strip 412 is lower than the top surface of the transparent glass 35, and the height below is between 1mm-3mm.

[0049] In this embodiment, a vibration detection mode can be implemented: the electric cylinders 52 on both sides are extended and retracted back and forth, so that the pusher 53 periodically hits the steel cage, so that the steel cage generates a certain vibration. After the vibration is completed, the electric cylinder 52 is retracted and stopped, and the detection mode is entered again to detect whether it is qualified. The vibration of the steel cage when pouring in the pile hole is simulated by vibration. After passing the test again, it enters the pile hole to enter the concrete pouring process;

[0050] In practical applications, the frequency of the beating and the vibration effect of the pushing member 53 pushing the steel cage can be adjusted according to the needs of the user, thereby simulating the vibration effect when pouring steel cages of different lengths.

[0051] Example 3

[0052] like Figure 8 As shown, on the basis of Example 2, a simulation structure 5 is proposed, which includes a fixed plate 51 fixedly connected to the outer surface of the support frame 1, an electric cylinder 52 is fixedly connected to the inner surface of the fixed plate 51, a No. 2 connecting sleeve 54 is fixedly connected to the outer surface of the electric cylinder 52, a push piece 53 is fixedly connected to the output end of the electric cylinder 52, and a No. 2 connecting rod 55 is fixedly connected between the No. 2 connecting sleeve 54 and the fixed plate 51.

[0053] There are two groups of simulation structures 5 which are symmetrically distributed. The extension and contraction of the electric cylinder 52 enables the pusher 53 to hit the steel cage to simulate vibration. The inner diameter of the No. 2 connecting sleeve 54 matches the outer diameter of the electric cylinder 52. One group of No. 2 connecting sleeves 54 corresponds to two groups of No. 2 connecting rods 55 which are symmetrically distributed.

[0054] In this embodiment, a cleaning mode can be realized: the electric slider 32 drives the protective shell 34 and the transparent glass 35 to move to the bottom of the fixing frame 44 and stop moving, and the micro pump 411 is started to transport the cleaning liquid in the water tank 41 to the inside of the liquid guide tube 42, and the cleaning liquid flows into the inside of the movable tube 43 through the liquid guide tube 42, and finally discharged outward through the water outlet 47, and the cleaning liquid will impact the sliding plate 46, so that the sliding plate 46, the first connecting rod 48 and the limit block 49 move in the direction away from the water tank 41, and at the same time, the push spring 410 will It is compressed and contracted inside the hole of the fixing frame 44. During this process, the surface of the transparent glass 35 can be cleaned by the scraper 412. At the same time, the cleaning liquid flows from the recessed groove 413 into the open groove 414 and finally flows onto the outer surface of the transparent glass 35. Then, the micro pump 411 is shut down and the sliding plate 46 is moved back by the reaction force of the push spring 410, so that the scraper 412 scrapes and cleans the surface of the transparent glass 35 again, thereby keeping the surface of the transparent glass 35 clean and maintaining the accuracy of the detection by the detection camera 33.

[0055] During actual use, the cleaning liquid inside the water tank 41 can be replaced with clean city water or other liquids with cleaning functions according to user needs, and the simulated structure 5 can be cleaned after use, which can remove dust adhered to the surface of the transparent glass 35 due to the vibration of the steel cage, and the effect is better.

[0056] A method for using a LNG storage tank steel bar construction quality inspection device, the method of use includes the following modes:

[0057] Detection mode: First, place the steel cage to be inspected between the two groups of rollers 2, and then start the detection mode. At this time, the main motor 8 drives the second gear 7 to rotate, and the second gear 7 drives the first gear 6 to rotate, and the first gear 6 drives the roller 2 to rotate, and the steel cage is driven to rotate slowly through the roller 2. During the slow rotation, the electric slider 32 drives the detection camera 33 to move slowly in the length direction of the electric slide rail 31. The detection camera 33 determines whether the spacing between the main bars, stirrups and positioning bars of the steel cage meets the requirements, and at the same time detects whether the sleeve connection between the steel bars is qualified. If qualified, it is reserved for standby, and if unqualified, it is readjusted for inspection or dismantled and scrapped;

[0058] Vibration detection mode: The electric cylinders 52 on both sides are extended and retracted to make the pusher 53 periodically hit the steel cage, so that the steel cage generates a certain vibration. After the vibration is completed, the electric cylinder 52 is retracted and stopped, and the detection mode is entered again to detect whether it is qualified. The vibration of the steel cage when pouring in the pile hole is simulated by vibration. After passing the test again, it enters the pile hole to enter the concrete pouring process;

[0059] Cleaning mode: The electric slider 32 drives the protective shell 34 and the transparent glass 35 to move to the bottom of the fixed frame 44 and stop moving. The micro pump 411 is started to transport the cleaning liquid in the water tank 41 to the inside of the liquid guide tube 42. The cleaning liquid flows into the inside of the movable tube 43 through the liquid guide tube 42 and is finally discharged outward through the water outlet 47. The cleaning liquid will impact the sliding plate 46, so that the sliding plate 46, the No. 1 connecting rod 48 and the limit block 49 move in the direction away from the water tank 41, and the push spring 410 will be compressed and contracted. Inside the hole of the fixing frame 44, the surface of the transparent glass 35 can be cleaned by the scraper 412 during this process, and the cleaning liquid will flow from the recessed groove 413 into the open groove 414 and finally flow to the outer surface of the transparent glass 35. After that, the micro pump 411 is closed and the sliding plate 46 is returned and moved under the reaction force of the push spring 410, so that the scraper 412 scrapes and cleans the surface of the transparent glass 35 again, so that the surface of the transparent glass 35 remains clean, thereby maintaining the accuracy of the detection effect of the detection camera 33.

[0060] It should be noted that the surface of the water tank 41 needs to be provided with an opening for filling with cleaning liquid as required, or be provided with an openable cover to meet the needs of actual use, and the opening is not shown in the drawings.

[0061] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A LNG tank steel bar construction quality inspection device, comprising a support frame (1), wherein the outer surface of the support frame (1) is rotatably connected to a roller (2), characterized in that: The outer surface of the support frame (1) is respectively connected with a detection structure (3), a cleaning structure (4) and a simulation structure (5); The detection structure (3) comprises an electric slide rail (31) fixedly connected to the outer surface of the support frame (1); the outer surface of the electric slide rail (31) is slidably connected to an electric slider (32); the outer surface of the electric slider (32) is fixedly connected to a detection camera (33); the outer surface of the roller (2) is detachably connected to a protective shell (34); the upper end of the protective shell (34) is fixedly connected to a transparent glass (35); the outer surface of the protective shell (34) is fixedly connected to an air guide (36); the inner side of the protective shell (34) is fixedly connected to a No. 1 connecting sleeve (37); the outer surface of the No. 1 connecting sleeve (37) is penetrated by a shaft (38); the outer surface of the shaft (38) is fixedly connected to a blade (39); The cleaning structure (4) is used to clean the surface of the transparent glass (35), and the simulation structure (5) is used to simulate the vibration impact on the steel cage during concrete pouring.

2. The LNG storage tank steel bar construction quality inspection device according to claim 1 is characterized in that: The cleaning structure (4) comprises a water storage tank (41) fixedly connected to the outer surface of the support frame (1); a liquid guide tube (42) is fixedly connected to the outer surface of the water storage tank (41); a movable tube (43) is slidably connected to the inner side of the liquid guide tube (42); a fixed frame (44) is fixedly connected to the surface of the support frame (1); a slide groove (45) is provided on the inner side surface of the fixed frame (44); a sliding plate (46) is slidably connected to the inner side of the fixed frame (44); a water outlet hole (47) is provided at one end of the movable tube (43) near the sliding plate (46). ), a first connecting rod (48) is fixedly connected to a surface of one side of the sliding plate (46), one end of the first connecting rod (48) is fixedly connected to a limiting block (49), an outer surface of the first connecting rod (48) is sleeved with a push spring (410), one end of the liquid guide tube (42) is connected to a micro pump (411), a scraper (412) for scraping dust or foreign matter off the surface of the transparent glass (35) is fixedly connected to the lower end of the sliding plate (46), and a recessed groove (413) and an open groove (414) are respectively provided on the outer surface of the sliding plate (46).

3. The LNG storage tank steel bar construction quality inspection device according to claim 1 is characterized in that: The simulation structure (5) comprises a fixing plate (51) fixedly connected to the outer surface of the support frame (1); an electric cylinder (52) is fixedly connected to the inner surface of the fixing plate (51); a second connecting sleeve (54) is fixedly connected to the outer surface of the electric cylinder (52); a push piece (53) is fixedly connected to the output end of the electric cylinder (52); and a second connecting rod (55) is fixedly connected between the second connecting sleeve (54) and the fixing plate (51).

4. The LNG storage tank steel bar construction quality inspection device according to claim 1 is characterized in that: The outer surface of the support frame (1) is fixedly connected to a first gear (6), the first gear (6) is used to drive the roller (2) to rotate, the outer surface of the first gear (6) is meshingly connected to a second gear (7), the second gear (7) is rotationally connected to the support frame (1), the outer surface of the support frame (1) is fixedly connected to a main motor (8) for driving the second gear (7) to rotate, and the outer surface of the support frame (1) is detachably connected to a protective shell (9) for protecting the gears at locations corresponding to the first gear (6) and the second gear (7).

5. The LNG storage tank steel bar construction quality inspection device according to claim 1 is characterized in that: The electric slider (32) slides back and forth along the length direction of the electric slide rail (31); the detection camera (33) is used to detect whether the spacing between the main reinforcement, positioning reinforcement and stirrups of the reinforcement cage meets the design requirements, and monitor whether the sleeve connection of the reinforcement meets the requirements; the protective shell (34) is movably connected to the electric slider (32) by screws; the transparent glass (35) is a transparent glass structure; and the air guide (36) is a trumpet opening structure.

6. The LNG storage tank steel bar construction quality inspection device according to claim 5 is characterized in that: The shaft (38) and the No. 1 connecting sleeve (37) are rotationally connected, the number of the blades (39) is a plurality of groups and they are distributed in a ring array, the two ends of the shaft (38) are arc-shaped hemispherical structures, the number of the No. 1 connecting sleeve (37) is two groups and they are symmetrically distributed, and the inner side of the air guide (36) is connected to the inside of the protective shell (34).

7. The LNG storage tank steel bar construction quality inspection device according to claim 2 is characterized in that: The lower end of the liquid guiding tube (42) is fixedly connected to the output end of the micro pump (411), and the micro pump (411) is fixedly connected to the water storage tank (41) by means of screws. Cleaning liquid is provided inside the water storage tank (41), and the liquid impacts the movable tube (43) to achieve the separation of the liquid guiding tube (42). One end of the liquid guiding tube (42) is fixedly connected to a sliding plate (46), and the sliding plate (46) slides back and forth along the length direction of the slide groove (45).

8. The LNG storage tank steel bar construction quality inspection device according to claim 7 is characterized in that: The push spring (410) is used to push the sliding plate (46) to slide toward the water tank (41), the limit block (49) is used to limit the maximum sliding distance of the push spring (410) to push the sliding plate (46), one end of the No. 1 connecting rod (48) passes through the fixed frame (44), the recessed groove (413) is used to evenly spray the cleaning liquid sprayed from the recessed groove (413) on the surface of the transparent glass (35) in conjunction with the open groove (414), the inner surface of one end of the fixed frame (44) away from the liquid guide tube (42) is provided with a hole for the push spring (410) to contract, the scraper (412) is made of elastic rubber material, the lower end of the scraper (412) is lower than the top surface of the transparent glass (35), and the height below is between 1mm and 3mm.

9. The LNG storage tank steel bar construction quality inspection device according to claim 3, characterized in that: The number of the simulation structures (5) is two and they are symmetrically distributed. The extension and contraction of the electric cylinder (52) enables the pusher (53) to beat the steel cage to simulate vibration. The inner diameter of the second connecting sleeve (54) matches the outer diameter of the electric cylinder (52). The number of a group of the second connecting sleeve (54) corresponding to the second connecting rod (55) is two and they are symmetrically distributed.

10. A method for using the LNG storage tank steel bar construction quality inspection device according to any one of claims 1 to 9, characterized in that: The usage methods include the following modes: Detection mode: first, place the steel cage to be inspected between two sets of rollers (2), then start the detection mode. At this time, the main motor (8) drives the second gear (7) to rotate, and drives the first gear (6) to rotate through the second gear (7), and drives the roller (2) to rotate through the first gear (6), and drives the steel cage to rotate slowly through the roller (2). During the slow rotation, the electric slider (32) drives the detection camera (33) to move slowly in the length direction of the electric slide rail (31). The detection camera (33) determines whether the spacing between the main bars, stirrups and positioning bars of the steel cage meets the requirements, and at the same time detects whether the sleeve connection between the steel bars is qualified. If qualified, it is reserved for standby use. If unqualified, it is readjusted for inspection or dismantled and scrapped. Vibration detection mode: the electric cylinders (52) on both sides are extended and retracted to make the pusher (53) periodically hit the steel cage, so that the steel cage generates a certain vibration. After the vibration is completed, the electric cylinder (52) is retracted and stopped, and the detection mode is entered again to detect whether it is qualified. The vibration of the steel cage when pouring in the pile hole is simulated by vibration. After the re-test is qualified, it enters the pile hole to enter the concrete pouring process; Cleaning mode: The electric slider (32) drives the protective shell (34) and the transparent glass (35) to move to the bottom of the fixed frame (44) and stop moving. The micro pump (411) is started to transport the cleaning liquid in the water tank (41) to the inside of the liquid guide tube (42). The cleaning liquid flows into the inside of the movable tube (43) through the liquid guide tube (42) and is finally discharged outward through the water outlet (47). The cleaning liquid impacts the sliding plate (46), so that the sliding plate (46), the first connecting rod (48) and the limit block (49) move in a direction away from the water tank (41), and at the same time pushes the sliding plate (46) and the first connecting rod (48) together with the limit block (49). The spring (410) will be compressed and contracted inside the hole of the fixing frame (44). During this process, the surface of the transparent glass (35) can be cleaned by the scraper (412). At the same time, the cleaning liquid will flow from the recessed groove (413) into the open groove (414) and finally flow onto the outer surface of the transparent glass (35). Then, the micro pump (411) is shut down and the sliding plate (46) is moved back by the reaction force of the push spring (410), so that the scraper (412) scrapes and cleans the surface of the transparent glass (35) again, thereby keeping the surface of the transparent glass (35) clean.

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