A non-destructive testing device for boiler tube inner wall oxide layer

Abstract

The utility model provides a kind of boiler pipe inner wall oxide layer nondestructive testing device, belong to boiler pipe detection technical field, including connecting box, stable installation component and quick replacement component, stable installation component includes the limiting rod being set in the inner wall one end both sides of connecting box, the inner wall other end both sides of connecting box are rotatably connected with screw rod, the middle of two screw rods is provided with rotating rod, the utility model has beneficial effect: two fixed rings are aligned with pipeline, cover on pipeline, and worm is rotated by rotating ring, worm rotation will drive turbine rotation, turbine rotation will drive rotating rod rotation, rotating rod rotation will drive screw rod rotation, screw rod is cooperated with the limiting rod by external thread, and two moving strips are close to middle part, moving strip moves will drive support ware to move by connecting plate, support ware moves will drive fixed ring to clamp pipeline, and then itself is quickly installed on pipeline, avoid the condition that artificial support leads to arm sore, to realize stable installation.

Description

Technical Field

[0001] This utility model belongs to the field of boiler tube testing technology, specifically relating to a non-destructive testing device for the oxide layer on the inner wall of boiler tubes. Background Technology

[0002] Boiler tubes refer to steel tubes that are open at both ends and have a hollow cross-section, with a length that is relatively large compared to their perimeter. They can be classified into seamless steel pipes and welded steel pipes according to their production methods. The specifications of steel pipes are expressed by their external dimensions (such as outer diameter or side length) and wall thickness. Their size range is very wide, from very small capillary tubes to large-diameter pipes with diameters of several meters. A search revealed that application number "CN202420097313.2" discloses "a non-destructive testing device for the oxide layer on the inner wall of boiler tubes," which describes "setting up an installation plate, adjusting seat, telescopic rod, fixing rod, and metal positioning hose; simultaneously fixing an arm ring and an extension sleeve on the installation plate; during testing, the worker only needs to insert their arm into the extension sleeve and arm ring, then rotate the support rod downwards and grasp the handle..." This method allows the other hand to support the telescopic pole, extending the point of force and reducing the stress on a single arm. The combined effect of both arms maintains the stability of the telescopic pole and improves testing accuracy. Utilizing a mounting plate, adjusting seat, telescopic pole, fixing rod, and metal positioning hose, with an arm collar and extension sleeve fixed to the mounting plate, the worker only needs to insert their arm into the extension sleeve and arm collar during testing, then rotate the support rod downwards and grasp the handle. This effectively allows the other hand to support the telescopic pole, extending the point of force and reducing the stress on a single arm. The combined effect of both arms maintains the stability of the telescopic pole and improves testing accuracy. However, the above comparison document still has the following problems in actual use:

[0003] In actual use, it requires hand support, which still makes the hand very tired, and it is inconvenient to change the detector while using it, resulting in low detection efficiency.

[0004] Therefore, providing a device that does not require hand support and allows for easy replacement of the detector is highly practical. Utility Model Content

[0005] The purpose of this invention is to provide a non-destructive testing device for the oxide layer on the inner wall of boiler tubes, in order to solve the above-mentioned technical problems.

[0006] This utility model provides a non-destructive testing device for the oxide layer on the inner wall of boiler tubes, including a connecting box, a stable installation component, and a quick replacement component.

[0007] The bottom of the connecting box is provided with a connector;

[0008] The stable installation assembly includes limiting rods on both sides of one end of the inner wall of the connecting box, lead screws rotatably connected to both sides of the other end of the inner wall of the connecting box, a rotating rod in the middle of the two lead screws, a moving strip threaded to the outer wall of the two lead screws, a connecting plate on one side of the two moving strips, a support through the connecting box on one side of the two connecting plates, a fixing ring at the bottom of the two supports, a worm gear on the outer wall of the rotating rod, and a worm gear meshing at one end of the worm gear.

[0009] The quick-change assembly includes a rotating ball at the bottom of the connector, a connecting rod rotatably connected to the bottom of the rotating ball, a metal positioning hose at the bottom of the connecting rod, a connecting frame at the bottom of the metal positioning hose, a card box movably connected to the bottom of the connecting frame, an isolation plate in the middle of the inner wall of the card box, an electric telescopic rod at one end of the isolation plate, a fixing frame at one end of the electric telescopic rod, two first hinge seats at the end of the fixing frame, connecting blocks hinged inside the two first hinge seats, connecting rods at the ends of the two connecting blocks, and locking heads at the ends of the two connecting rods. A detector is located at the bottom of the card box.

[0010] In one embodiment of this utility model, one end of each of the two connecting rods is hinged to a second hinge seat, one end of each of the two second hinge seats is provided with a fixing plate, both ends of the fixing plate are fixedly connected to the inner wall of the card box, and the other end of the isolation plate is provided with the same structure as one end.

[0011] In one embodiment of this utility model, several card slots are provided at both ends of the connecting frame, and the two card heads are inserted through the card box and connected to the card slots.

[0012] In one embodiment of this utility model, the bottom of the worm gear is rotatably connected to the bottom of the inner wall of the connecting box, and the top of the worm gear is provided with a rotating ring penetrating the connecting box.

[0013] In one embodiment of this utility model, anti-slip strips are provided on one side of each of the two fixed rings, and one end of each of the two movable strips is slidably connected to a limiting rod.

[0014] In one embodiment of this utility model, auxiliary frames are provided at both ends of the connecting box, and operating rods are slidably connected inside the two auxiliary frames. The bottom of the two operating rods is hinged to a third hinge seat, and a support ring is provided in the middle of the two third hinge seats. The inside of the support ring is fixedly connected to the connecting rod. The detector has a built-in battery, and a controller is provided at the top corner of the connecting box.

[0015] In one embodiment of this utility model, both the electric telescopic rod and the detector are electrically connected to the controller, and the controller is electrically connected to the battery.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1) The worm gear facilitates the inspection of the inner wall of the boiler tubes by the user. The user aligns the two fixing rings with the pipe, covers the pipe, and rotates the rotating ring to rotate the worm gear. The rotation of the worm gear drives the turbine to rotate, which in turn drives the rotating rod to rotate. The rotating rod drives the lead screw to rotate. The lead screw, through the cooperation of the external thread and the limit rod, causes the two moving bars to move towards the center. The movement of the moving bars drives the support to move through the connecting plate. The movement of the support causes the fixing rings to clamp the pipe, thus quickly installing itself on the pipe. This avoids the arm pain caused by manual support and achieves stable installation.

[0018] 2) The electric telescopic rod allows users to easily change different detectors when needed. Users can open the electric telescopic rod via the controller, causing it to retract and move the fixed frame. The movement of the fixed frame, through the engagement of the first hinge seat and the connecting block, causes the connecting rod to move through the second hinge seat, which in turn causes the connecting rod to slide the card head out of the card slot, thereby releasing the limit of the connecting frame and the card box. At this point, users can pull out the card box and its detector and replace it, and then reset it via the electric telescopic rod, thus achieving quick replacement of different detectors. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is an enlarged structural diagram of the connecting box of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the connector box of this utility model;

[0023] Figure 4 This is an enlarged schematic diagram of the internal structure of the card box of this utility model.

[0024] In the diagram: 100, connector box; 110, connector head;

[0025] 200. Stabilizing mounting assembly; 210. Limiting rod; 220. Lead screw; 230. Rotating rod; 240. Moving bar; 250. Connecting plate; 260. Support; 270. Retaining ring; 280. Turbine; 290. Worm gear;

[0026] 300. Quick-change component; 310. Swivel ball; 320. Connecting rod; 330. Metal positioning hose; 340. Connecting frame; 350. Card box; 360. Isolation plate; 370. Electric telescopic rod; 380. Fixing bracket;

[0027] 390, First hinge seat; 3910, Connecting block; 3920, Connecting rod; 3930, Clamp; 3940, Detector;

[0028] 400. Second hinge seat;

[0029] 500. Fixing plate;

[0030] 600, Rotary ring;

[0031] 700, anti-slip strips;

[0032] 800, auxiliary box;

[0033] 900. Control lever;

[0034] 1000, Third hinge seat; 1100, Support ring. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example

[0036] Please see Figure 1 - Figure 4 A non-destructive testing device for oxide layer on the inner wall of boiler tubes includes a connection box 100, a stable installation component 200, and a quick replacement component 300.

[0037] Please refer to the details. Figure 1 A connector 110 is provided at the bottom of the connector box 100.

[0038] Please see Figure 3The stable installation component 200 includes limiting rods 210 on both sides of one end of the inner wall of the connecting box 100, and lead screws 220 rotatably connected to both sides of the other end of the inner wall of the connecting box 100. A rotating rod 230 is provided between the two lead screws 220. Moving strips 240 are threadedly connected to the outer walls of the two lead screws 220. A connecting plate 250 is provided on one side of the two moving strips 240. A support 260 is provided through the connecting box 100 on one side of the two connecting plates 250. A fixing ring 270 is provided at the bottom of the two support 260. A worm gear 280 is provided on the outer wall of the rotating rod 230. A worm gear 290 is engaged at one end of the worm gear 280.

[0039] In one specific embodiment, the worm gear 290 facilitates the inspection of the inner wall of the boiler tube by aligning the two fixing rings 270 with the pipe and covering it. Rotating the rotating ring 600 causes the worm gear 290 to rotate, which in turn drives the turbine 280, which in turn drives the rotating rod 230, which in turn drives the lead screw 220. The lead screw 220, through its external thread and engagement with the limiting rod 210, causes the two moving bars 240 to converge towards the center. The movement of the moving bars 240, via the connecting plate 250, moves the support 260, which in turn causes the fixing rings 270 to clamp the pipe, thus quickly installing itself onto the pipe. This avoids arm pain caused by manual support and achieves stable installation.

[0040] Please see Figure 1-4 The quick-change component 300 includes a rotating ball 310 located at the bottom of the connector 110. A connecting rod 320 is rotatably connected to the bottom of the rotating ball 310. A metal positioning hose 330 is located at the bottom of the connecting rod 320. A connecting frame 340 is located at the bottom of the metal positioning hose 330. A card box 350 is movably connected to the bottom of the connecting frame 340. An isolation plate 360 ​​is located in the middle of the inner wall of the card box 350. An electric telescopic rod 370 is located at one end of the isolation plate 360. A fixing frame 380 is located at one end of the electric telescopic rod 370. Two first hinge seats 390 are located at the end of the fixing frame 380. A connecting block 3910 is hinged inside each of the two first hinge seats 390. A connecting rod 3920 is located at the end of each of the two connecting blocks 3910. A locking head 3930 is located at the end of each of the two connecting rods 3920. A detector 3940 is located at the bottom of the card box 350.

[0041] In one specific embodiment, the electric telescopic rod 370 facilitates the replacement of different detectors 3940 by the user. The user opens the electric telescopic rod 370 via the controller, causing it to retract and move the fixing frame 380. The movement of the fixing frame 380, through the engagement of the first hinge seat 390 and the connecting block 3910, causes the connecting rod 3920 to move through the second hinge seat 400. This causes the connecting rod 3920 to slide the card head 3930 out of the card slot, thereby releasing the limiting position of the connecting frame 340 and the card box 350. At this point, the user can pull out and replace the card box 350 and its detector 3940, and then reset it via the electric telescopic rod 370, thus achieving the purpose of quickly replacing different detectors 3940.

[0042] Please see Figure 4 Each of the two connecting rods 3920 has a second hinge seat 400 hinged to one end. A fixing plate 500 is provided at one end of each of the two second hinge seats 400. Both ends of the fixing plate 500 are fixedly connected to the inner wall of the card box 350. The other end of the isolation plate 360 ​​has the same structure as one end.

[0043] In one specific embodiment, the fixed plate 500 facilitates the support and fixation of the parts at one end and the other end during use, making them more stable during use and preventing shaking.

[0044] Please see Figure 4 Both ends of the connecting frame 340 are provided with several card slots, and the ends of the two card heads 3930 pass through the card box 350 and are inserted and connected to the card slots.

[0045] In one specific embodiment, the card box 350 facilitates quick connection with the connecting frame 340 during use, enabling subsequent replacement of the detector 3940 and improving work efficiency.

[0046] Please see Figure 2 The bottom of the worm gear 290 is rotatably connected to the bottom of the inner wall of the connecting box 100, and the top of the worm gear 290 is provided with a rotating ring 600 through the connecting box 100.

[0047] In one specific embodiment, the provided rotating ring 600 allows the user to control the fixed ring 270 by rotating the rotating ring 600, so as to load it onto the pipeline and facilitate operation.

[0048] Please see Figure 2 Each of the two fixed rings 270 has an anti-slip strip 700 on one side, and one end of each of the two moving strips 240 is slidably connected to the limiting rod 210.

[0049] In one specific embodiment, the anti-slip strip 700 is provided to facilitate the use of the anti-slip strip 700 to maintain friction when clamping the pipe, thereby avoiding slippage and unstable clamping during use.

[0050] Please see Figure 2 Both ends of the connecting box 100 are provided with auxiliary frames 800. The inside of each auxiliary frame 800 is slidably connected with an operating rod 900. The bottom of each operating rod 900 is hinged with a third hinge seat 1000. The middle of each third hinge seat 1000 is provided with a support ring 1100. The inside of the support ring 1100 is fixedly connected to the connecting rod 320. The detector 3940 has a built-in battery. A controller is provided at the top corner of the connecting box 100.

[0051] In one specific embodiment, the operating lever 900 allows the user to slide the lever 900 and engage it with the third hinge seat 1000. This allows the user to control the tilt of the connecting rod 320 by engaging the support ring 1100 with the rotating ball 310, thus enabling more accurate detection.

[0052] Please see Figure 1 - Figure 4 Both the electric telescopic pole 370 and the detector 3940 are electrically connected to the controller, which is electrically connected to the battery.

[0053] In one specific embodiment, the provided controller facilitates power supply control for electrical equipment, ensuring more stable power supply to the equipment when needed and preventing power outages.

[0054] In use, the worm gear 290 facilitates inspection of the boiler tube's inner wall. The user aligns the two fixing rings 270 with the pipe, places them over the pipe, and rotates the rotating ring 600 to rotate the worm gear 290. This rotation drives the turbine 280, which in turn drives the rotating rod 230, which in turn drives the lead screw 220. The lead screw 220, through its external thread and engagement with the limiting rod 210, causes the two moving bars 240 to converge towards the center. The movement of the moving bars 240 then drives the support 260 via the connecting plate 250. The support 260, in turn, causes the fixing rings 270 to clamp the pipe, allowing the device to be quickly installed onto the pipe, avoiding arm pain caused by manual support. This ensures stable installation. The included electric telescopic rod 370 allows users to easily replace different detectors 3940 when needed. The user opens the electric telescopic rod 370 via the controller, causing it to retract and move the fixing frame 380. The movement of the fixing frame 380, through the engagement of the first hinge seat 390 and the connecting block 3910, moves the connecting rod 3920 via the second hinge seat 400. Finally, the connecting rod 3920 causes the locking head 3930 to slide out of the slot, releasing the limits of the connecting frame 340 and the card box 350. The user can then pull out and replace the card box 350 and its detector 3940, resetting it via the electric telescopic rod 370, thus enabling quick replacement of different detectors 3940.

[0055] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A non-destructive testing device for the oxide layer on the inner wall of boiler tubes, characterized in that, include: A connector box (100) is provided at the bottom of the connector box (100); A stable mounting assembly (200) includes limiting rods (210) on both sides of one end of the inner wall of the connecting box (100), and lead screws (220) rotatably connected to both sides of the other end of the inner wall of the connecting box (100). A rotating rod (230) is provided between the two lead screws (220), and a moving strip (240) is threadedly connected to the outer wall of the two lead screws (220). A connecting plate (250) is provided on one side of each of the two moving strips (240), and a support (260) is provided through the connecting box (100) on one side of each of the two connecting plates (250). A fixing ring (270) is provided at the bottom of each of the two support (260). A turbine (280) is provided on the outer wall of the rotating rod (230), and a worm gear (290) is engaged at one end of the turbine (280). A quick-change assembly (300) includes a rotating ball (310) disposed at the bottom of a connector (110). A connecting rod (320) is rotatably connected to the bottom of the rotating ball (310). A metal positioning hose (330) is disposed at the bottom of the connecting rod (320). A connecting frame (340) is disposed at the bottom of the metal positioning hose (330). A card holder (350) is movably connected to the bottom of the connecting frame (340). An isolation plate (360) is disposed in the middle of the inner wall of the card holder (350). One end of the 60) is provided with an electric telescopic rod (370), and one end of the electric telescopic rod (370) is provided with a fixed frame (380). The fixed frame (380) has two first hinge seats (390) at its end. The two first hinge seats (390) are hinged with connecting blocks (3910) inside. The two connecting blocks (3910) are provided with connecting rods (3920) at their ends. The two connecting rods (3920) are provided with clips (3930) at their ends. The bottom of the card box (350) is provided with a detector (3940).

2. The non-destructive testing device for the oxide layer on the inner wall of a boiler tube according to claim 1, characterized in that: One end of each of the two connecting rods (3920) is hinged to a second hinge seat (400), and one end of each of the two second hinge seats (400) is provided with a fixing plate (500). Both ends of the fixing plate (500) are fixedly connected to the inner wall of the card box (350), and the other end of the isolation plate (360) is provided with the same structure as one end.

3. The non-destructive testing device for the oxide layer on the inner wall of a boiler tube according to claim 2, characterized in that: Both ends of the connecting frame (340) are provided with several card slots, and the ends of the two card heads (3930) pass through the card box (350) and are inserted and connected to the card slots.

4. The non-destructive testing device for the oxide layer on the inner wall of a boiler tube according to claim 1, characterized in that: The bottom of the worm (290) is rotatably connected to the bottom of the inner wall of the connecting box (100), and the top of the worm (290) is provided with a swivel (600) through the connecting box (100).

5. The non-destructive testing device for the oxide layer on the inner wall of a boiler tube according to claim 1, characterized in that: Anti-slip strips (700) are provided on one side of each of the two fixed rings (270), and one end of each of the two movable strips (240) is slidably connected to the limiting rod (210).

6. The non-destructive testing device for the oxide layer on the inner wall of a boiler tube according to claim 1, characterized in that: The connecting box (100) has auxiliary frames (800) at both ends. The two auxiliary frames (800) are slidably connected to the inside of the two auxiliary frames (800). The bottom of the two operating rods (900) is hinged to a third hinge seat (1000). The middle of the two third hinge seats (1000) is provided with a support ring (1100). The inside of the support ring (1100) is fixedly connected to the connecting rod (320). The detector (3940) has a built-in battery. The top corner of the connecting box (100) is provided with a controller.

7. The non-destructive testing device for the oxide layer on the inner wall of a boiler tube according to claim 6, characterized in that: The electric telescopic pole (370) and the detector (3940) are both electrically connected to the controller, which is electrically connected to the battery.

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