Auxiliary mechanism for boiler inspection

Abstract

The utility model is suitable for the technical field of boiler inspection, and provides an auxiliary mechanism for boiler inspection, which comprises a boiler pipeline. The boiler pipeline is communicated with an inner inspection pipe; an endoscope auxiliary frame is inserted into the top end of the inner inspection tube; the boiler pipeline is communicated with an outer screw joint pipe which is coaxial with the inner inspection pipe; a lifting part is in threaded connection with the outer threaded connection pipe; a vertical guide groove and a spiral groove which communicate with each other are sequentially formed in the side face of the periphery of the L-shaped pipe from top to bottom. A guide part in sliding fit with the vertical guide groove and the spiral groove is slidably arranged at the top in the top cover in a penetrating mode, the guide part is extruded by controlling descending of the lifting part, so that the guide part synchronously slides and descends, and a first ball head on the guide part slides into the spiral groove from the vertical guide groove; therefore, the L-shaped pipe and the endoscope camera at the end of the L-shaped pipe are driven to rotate, the direction of the endoscope camera is convenient to adjust, and the accuracy of internal inspection of the boiler pipeline is improved.

Description

Technical Field

[0001] This utility model relates to the field of boiler inspection technology, and more specifically, to an auxiliary mechanism for boiler inspection. Background Technology

[0002] A boiler is a mechanical device that uses the thermal energy of fuel or other energy sources to heat water into hot water or steam. The hot water or steam produced in a boiler can directly provide the thermal energy needed for industrial production and people's lives, or it can be converted into mechanical energy through a steam power unit, or the mechanical energy can be converted into electrical energy through a generator. Equipment with specific technological functions and that withstands a certain pressure in industrial production is called a pressure vessel. Storage and transportation vessels, reaction vessels, heat exchange vessels, and separation vessels are all pressure vessels, and their applications are very wide-ranging.

[0003] Currently, when inspecting boiler pressure vessels, auxiliary devices for boiler pressure vessel inspection are needed to perform endoscopic inspections of the inside of boiler pipes. However, when the probe of existing industrial endoscopes is inserted into the pipe to a certain length, it is not easy to adjust the direction of the probe, which makes it difficult to perform inspections effectively. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an auxiliary mechanism for boiler inspection. By controlling the descent of the lifting part to compress the guide part, the guide part slides down synchronously. The first ball head on the guide part slides from the vertical guide groove into the spiral groove, thereby driving the L-shaped tube and the endoscope camera at its end to rotate. This facilitates the adjustment of the direction of the endoscope camera and improves the accuracy of the inspection of the inside of the boiler pipes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary mechanism for boiler inspection, comprising a boiler pipe; an inner inspection tube is connected to the boiler pipe; an endoscope auxiliary frame is inserted into the top of the inner inspection tube; an outer threaded connector coaxial with the inner inspection tube is connected to the boiler pipe; a lifting part is threaded onto the outer threaded connector; the endoscope auxiliary frame includes a top cover; a rotating plate is rotatably disposed through the top of the top cover; an L-shaped tube is fixed at the bottom of the rotating plate; vertical guide grooves and spiral grooves are sequentially opened from top to bottom on the outer circumferential side of the L-shaped tube; a guide part is slidably disposed through the top of the top cover, which slides in cooperation with the vertical guide grooves and spiral grooves.

[0006] The present invention is further configured such that: the guide part includes a slide plate; a groove is provided on the top of the inner cover to slide and cooperate with the slide plate; an ear rod is fixed on the side of the slide plate near its bottom; and a first ball head is fixed at the end of the ear rod to slide and cooperate with the vertical guide groove and the spiral groove.

[0007] The present invention is further configured such that: a second ball head is fixed to the top of the skateboard; the lifting part includes a sleeve; a conical guide shell is fixed to the bottom of the sleeve; a bottom tube is fixed to the bottom of the conical guide shell; an internal thread is provided on the inner circumferential side of the bottom tube; an external thread adapted to the internal thread is provided on the outer circumferential side of the external threaded tube; and a support spring sleeved on the skateboard is fixed between the second ball head and the top of the top cover.

[0008] The present invention is further configured such that: an iron ring is fixed at the bottom of the top cover; an annular magnet is fixed on the outer circumferential side of the inner inspection tube; a slide rail is fixed on the outer circumferential side of the inner inspection tube; and a guide groove is provided on the inner circumferential side of the top cover to slide in cooperation with the slide rail.

[0009] The present invention is further configured such that: a U-shaped seat is symmetrically fixed on the outer peripheral side of the top cover; an insertion rod is symmetrically slidably disposed through the outer peripheral side of the top cover; insertion holes for insertion and engagement with the insertion rod are symmetrically opened on the outer peripheral side of the inner inspection tube; and a return spring sleeved on the insertion rod is fixed between the U-shaped seat and the outer peripheral side of the top cover.

[0010] The present invention is further configured such that: a third ball head adapted to the conical guide shell is fixed at the end of the insertion rod; under the elastic force of the return spring, the third ball head abuts against the inner circumferential side of the conical guide shell and the top cover; under the elastic force of the support spring, the second ball head abuts against the inner top of the top cover.

[0011] The present invention is further configured such that: an endoscope camera is fixedly installed at the end of the L-shaped tube; a battery box for providing power is fixedly installed through the top of the sleeve; a battery pack is installed inside the battery box; a display screen and a controller are installed through the outer periphery of the sleeve from top to bottom; the output end of the controller is electrically connected to the display screen; and a cable passing through the L-shaped tube and the rotating plate is electrically connected between the endoscope camera and the controller.

[0012] The advantages of this utility model are:

[0013] 1. This utility model controls the descent of the lifting part to compress the guide part, causing the guide part to slide down synchronously. The first ball head on the guide part slides from the vertical guide groove into the spiral groove, thereby driving the L-shaped tube and the endoscope camera at its end to rotate, which facilitates the adjustment of the direction of the endoscope camera and improves the accuracy of the inspection of the inside of the boiler pipe.

[0014] 2. During the descent of the lifting part of this utility model, as the third ball head slides from the inner wall of the sleeve to the inner wall of the bottom tube, it gradually squeezes the third ball head, causing the insertion rod to be inserted into the corresponding insertion hole, thereby improving the stability of the connection between the endoscope auxiliary frame and the internal inspection tube. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an auxiliary mechanism for boiler inspection according to the present invention.

[0016] Figure 2 For the present utility model Figure 1 Enlarged view of region A.

[0017] Figure 3 For the present utility model Figure 1 A cross-sectional view from a frontal perspective.

[0018] Figure 4 This is a schematic diagram of the boiler pipe structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the endoscope auxiliary frame of this utility model.

[0020] Figure 6 This is a schematic diagram of the lifting part of this utility model.

[0021] Figure 7 This is a schematic diagram of the guide section of this utility model.

[0022] In the diagram: 1. Boiler pipe; 2. Internal inspection tube; 3. Endoscope auxiliary frame; 4. External threaded connector; 5. Lifting part; 6. Top cover; 7. Rotating plate; 8. L-shaped tube; 9. Vertical guide groove; 10. Spiral groove; 11. Guide part; 12. Slide plate; 13. Slide groove; 14. Ear rod; 15. First ball head; 16. Second ball head; 17. Sleeve; 18. Conical guide shell; 19. Bottom tube; 20. Internal thread; 21. External thread; 22. Support spring; 23. Iron ring; 24. Slide rail; 25. Guide groove; 26. U-shaped seat; 27. Insert rod; 28. Insertion hole; 29. ​​Return spring; 30. Third ball head; 31. Endoscope camera; 32. Battery box; 33. Display screen; 34. Controller; 35. Cable; 36. Ring magnet. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0025] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0026] Example 1, please refer to Figure 1-7 The present invention provides the following technical solution:

[0027] Specifically, it refers to an auxiliary mechanism for boiler inspection, including a boiler pipe 1; an inner inspection tube 2 is connected to the boiler pipe 1; an endoscope auxiliary frame 3 is inserted into the top of the inner inspection tube 2; an outer threaded connector 4 coaxial with the inner inspection tube 2 is connected to the boiler pipe 1; a lifting part 5 is threaded onto the outer threaded connector 4; the endoscope auxiliary frame 3 includes a top cover 6; a rotating plate 7 is rotatably installed through the top of the top cover 6; an L-shaped tube 8 is fixed at the bottom of the rotating plate 7; vertical guide grooves 9 and spiral grooves 10 are sequentially opened from top to bottom on the outer periphery of the L-shaped tube 8; a guide part 11 is slidably installed through the top of the top cover 6, which slides in cooperation with the vertical guide grooves 9 and spiral grooves 10.

[0028] The specific application of this embodiment is as follows:

[0029] By controlling the descent of the lifting part 5 to press the guide part 11, the guide part 11 slides down synchronously. The first ball head 15 on the guide part 11 slides from the vertical guide groove 9 into the spiral groove 10, thereby driving the L-shaped tube 8 and the endoscope camera 31 at its end to rotate, which makes it easier to adjust the direction of the endoscope camera 31 and improve the accuracy of the inspection of the inside of the boiler pipe 1.

[0030] Example 2, please refer to Figure 1-7 This second embodiment is an improvement on the first embodiment. Specifically, the guide part 11 includes a slide plate 12; a groove 13 is provided at the top of the top cover 6 to slide and cooperate with the slide plate 12; an ear rod 14 is fixed on the side of the slide plate 12 near its bottom; and a first ball head 15 is fixed at the end of the ear rod 14 to slide and cooperate with the vertical guide groove 9 and the spiral groove 10.

[0031] The top of the slide plate 12 is fixed with a second ball head 16; the lifting part 5 includes a sleeve 17; the bottom of the sleeve 17 is fixed with a conical guide shell 18; the bottom of the conical guide shell 18 is fixed with a bottom tube 19; the inner circumferential side of the bottom tube 19 is provided with an internal thread 20; the outer circumferential side of the external threaded tube 4 is provided with an external thread 21 that matches the internal thread 20; a support spring 22 sleeved on the slide plate 12 is fixed between the second ball head 16 and the top of the top cover 6.

[0032] The top cover 6 has an iron ring 23 fixed at the bottom; the inner inspection tube 2 has an annular magnet 36 fixed on the outer side; the inner inspection tube 2 has a slide rail 24 fixed on the outer side; and the top cover 6 has a guide groove 25 that slides with the slide rail 24 on the inner side.

[0033] A U-shaped seat 26 is symmetrically fixed on the outer periphery of the top cover 6; a plug rod 27 is symmetrically slidably arranged through the outer periphery of the top cover 6; a plug hole 28 is symmetrically opened on the outer periphery of the inner inspection tube 2 to engage with the plug rod 27; a return spring 29 is fixed between the U-shaped seat 26 and the outer periphery of the top cover 6 and sleeved on the plug rod 27.

[0034] The end of the insertion rod 27 is fixed with a third ball head 30 that is adapted to the conical guide shell 18; under the elastic force of the return spring 29, the third ball head 30 is pressed against the inner circumferential side of the conical guide shell 18 and the top cover 6; under the elastic force of the support spring 22, the second ball head 16 is pressed against the inner top of the top cover 6.

[0035] One specific application of this embodiment is:

[0036] By sliding the guide groove 25 on the inner wall of the top cover 6 on the endoscope auxiliary frame 3 down along the corresponding slide rail 24 until the iron ring 23 at the bottom of the top cover 6 is placed on top of the annular magnet 36 and is attracted, the assembly stability of the endoscope auxiliary frame 3 and the internal inspection tube 2 is improved. At this time, the insertion rod 27 and the corresponding insertion hole 28 are set coaxially.

[0037] In the initial state, the support spring 22 is in normal condition, the first ball head 15 is placed in the vertical guide groove 9, the bottom tube 19 of the lifting part 5 is screwed to the outer threaded pipe 4, the lifting part 5 is rotated to make it rotate and descend along the outer threaded pipe 4 until the top of the sleeve 17 presses on the second ball head 16.

[0038] Rotating the lifting part 5 causes the bottom tube 19 to rotate and descend along the external threaded connector 4. During the rotation and descent of the sleeve 17, it presses down on the second ball head 16 and slides down, causing the slide plate 12 to slide down along the slide groove 13. The support spring 22 is compressed, and the first ball head 15 slides from the vertical guide groove 9 into the inner wall of the conical guide shell 18. During this process, the third ball head 30 is squeezed, and the return spring 29 is compressed, causing the insertion rod 27 to be inserted into the corresponding insertion hole 28, which further improves the stability of the connection between the endoscope auxiliary frame 3 and the internal inspection tube 2.

[0039] After the first ball head 15 slides into the spiral groove 10, the first ball head 15 continues to slide down, causing the L-shaped tube 8 to rotate, thereby causing the endoscope camera 31 at the end of the L-shaped tube 8 to rotate inside the boiler pipe 1, thereby adjusting the direction of the endoscope camera 31 and improving the accuracy of inspection inside the boiler pipe 1.

[0040] Example 3, please refer to Figure 1-7 This third embodiment is an improvement on the second embodiment as follows: Specifically, an endoscope camera 31 is fixedly installed at the end of the L-shaped tube 8; a battery box 32 for providing power is fixedly installed through the top of the sleeve 17; a battery pack is installed inside the battery box 32; a display screen 33 and a controller 34 are installed through the outer periphery of the sleeve 17 from top to bottom; the output end of the controller 34 is electrically connected to the display screen 33; and a cable 35 is electrically connected between the endoscope camera 31 and the controller 34, passing through the L-shaped tube 8 and the rotating plate 7 in sequence.

[0041] One specific application of this embodiment is:

[0042] By installing a battery inside the battery box 32 to supply power to the controller 34 and the display screen 33, after the endoscope probe 31 completes its position adjustment, the controller 34 controls the operation of the endoscope probe 31 to work on the inner wall of the boiler pipe 1 and transmit high-definition images to the display screen 33, thus ensuring the quality of the inspection inside the boiler pipe 1 and making it convenient for staff to use.

[0043] When the endoscope probe 31 needs to be disassembled and maintained, the lifting part 5 is rotated in the opposite direction, so that the bottom tube 19 rotates and rises along the external threaded tube 4 until the lifting part 5 is removed. During this process, the third ball head 30 slides from the bottom tube 19 and the conical guide shell 18 to the inner wall of the sleeve 17 in sequence. Under the elastic reset force of the reset spring 29, the insertion rod 27 is pulled out from the insertion hole 26, releasing the connection limit between the endoscope auxiliary frame 3 and the internal inspection tube 2. The endoscope auxiliary frame 3 can be directly removed. The operation is simple and convenient.

[0044] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0045] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0046] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. 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.

[0048] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An auxiliary mechanism for boiler inspection, comprising a boiler pipe (1); characterized in that: The boiler pipeline (1) is provided with an inner inspection pipe (2) in communication; the top end of the inner inspection pipe (2) is provided with an endoscope auxiliary frame (3); the boiler pipeline (1) is provided with an outer screw pipe (4) coaxial with the inner inspection pipe (2); the outer screw pipe (4) is screwed with a lifting part (5). The endoscope auxiliary frame (3) comprises a top cover (6); the inner top of the top cover (6) is provided with a rotating plate (7) penetrating and rotating; the bottom of the rotating plate (7) is fixed with an L-shaped pipe (8); the outer circumferential side of the L-shaped pipe (8) is sequentially provided with a vertical guide groove (9) and a spiral groove (10) in communication from top to bottom; the inner top of the top cover (6) is provided with a guide part (11) penetrating and sliding in sliding fit with the vertical guide groove (9) and the spiral groove (10).

2. An auxiliary mechanism for boiler inspection as claimed in claim 1 wherein: The guide part (11) comprises a sliding plate (12); the inner top of the top cover (6) is provided with a sliding groove (13) in sliding fit with the sliding plate (12); the side of the sliding plate (12) close to the bottom is fixed with an ear rod (14); the end of the ear rod (14) is fixed with a first ball head (15) in sliding fit with the vertical guide groove (9) and the spiral groove (10).

3. An auxiliary mechanism for boiler inspection as claimed in claim 2 wherein: The top of the sliding plate (12) is fixed with a second ball head (16); the lifting part (5) comprises a sleeve (17); the bottom of the sleeve (17) is fixed with a conical guide shell (18); the bottom of the conical guide shell (18) is fixed with a bottom pipe (19); the inner circumferential side of the bottom pipe (19) is provided with an internal thread (20); the outer circumferential side of the outer screw pipe (4) is provided with an external thread (21) matched with the internal thread (20); the second ball head (16) and the top of the top cover (6) are fixed with a supporting spring (22) sleeved on the sliding plate (12).

4. An auxiliary mechanism for boiler inspection as claimed in claim 3 wherein: The bottom of the top cover (6) is fixed with an iron ring (23); the outer circumferential side of the inner inspection pipe (2) is fixed with an annular magnet (36); the outer circumferential side of the inner inspection pipe (2) is fixed with a sliding rail (24); the inner circumferential side of the top cover (6) is provided with a guide groove (25) in sliding fit with the sliding rail (24).

5. An auxiliary mechanism for boiler inspection as claimed in claim 4, wherein: The outer circumferential side of the top cover (6) is symmetrically fixed with a U-shaped seat (26); the outer circumferential side of the top cover (6) is symmetrically provided with a plug rod (27) penetrating and sliding; the outer circumferential side of the inner inspection pipe (2) is symmetrically provided with a plug hole (28) in plug fit with the plug rod (27); the U-shaped seat (26) and the outer circumferential side of the top cover (6) are fixed with a reset spring (29) sleeved on the plug rod (27).

6. An auxiliary mechanism for boiler inspection as claimed in claim 5 wherein: The end of the plug rod (27) is fixed with a third ball head (30) matched with the conical guide shell (18); under the elastic force of the reset spring (29), the third ball head (30) is tightly pressed against the inner circumferential side of the conical guide shell (18) and the top cover (6); under the elastic force of the supporting spring (22), the second ball head (16) is tightly pressed against the inner top of the top cover (6).

7. An auxiliary mechanism for boiler inspection as claimed in claim 6 wherein: The end of the L-shaped pipe (8) is fixedly provided with an endoscope camera (31); the inner top of the sleeve (17) is fixedly provided with a battery box (32) for providing power; the battery box (32) is internally provided with a battery pack; the outer circumferential side of the sleeve (17) is sequentially provided from top to bottom with a display screen (33) and a controller (34); the output end of the controller (34) is electrically connected with the display screen (33); the endoscope camera (31) and the controller (34) are electrically connected with a cable (35) sequentially penetrating through the L-shaped pipe (8) and the rotating plate (7).

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