Pipeline welding seam sealing performance detection device

Abstract

The invention relates to the technical field of airtightness detection, in particular to a pipeline welding seam airtightness detection device which comprises a base, a coating mechanism, a sealing mechanism, a supplementing mechanism, an inserting mechanism and a locking mechanism. The two toothed bars are driven by the motor and the rotating teeth to slide relatively, the two clamping sleeves are forced to get close to each other, the welding joint of the two steel pipes can be comprehensively wrapped without being affected by the length of the steel pipes, the two annular air bags are connected in an inserted mode to form a closed-loop air bag, the guide pipe and the connecting pipe abut against each other, and therefore the welding joint of the two steel pipes can be stably welded. The pull block and the connecting block are driven to respectively drive the top blocks hinged with the pull block and the connecting block to slide, so that the clamping plate and the adaptive plate are driven to extend outwards, and the two top plates are driven to extend outwards, so that a tight fitting effect is kept at the joint of the two annular air bags; whether air in the air bag leaks or not is judged by observing the height of the connecting plate in the connecting window, and then whether cracks exist at the weld joint or not can be judged.

Description

Technical Field

[0001] The invention relates to the technical field of air tightness detection, and in particular to a pipeline weld sealing detection device. Background Art

[0002] Pipes are widely used in the construction industry or industrial production as a transport carrier or as a connection protector. In actual work, length problems are often encountered and multiple steel pipes need to be welded. However, in order to ensure the strength of the welding and the sealing achieved, it is usually necessary to conduct corresponding tests on the airtightness of the weld to ensure that there will be no leakage during use.

[0003] The existing sealing detection work is mostly to seal the two ends of the pipeline and then inject air or penetrant with a color marking function into the inside. However, since the pipeline after welding is relatively long and the pipeline may be relatively thick, in this case, the amount of air or penetrant required to be injected will increase accordingly, that is, the required working time will increase, and the cracks at the welding point are relatively small, and the amount of gas or liquid passing through in a short time is very small. In particular, when injecting the penetrant, the air inside the pipeline needs to be squeezed, and the discharge rate is lower than the injection rate. Under the action of pressure balance, the injection of the penetrant cannot be completed, and the weld cannot be fully inspected. The overall work efficiency is low and the detection effect is not accurate, with large errors. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to propose a pipeline weld sealing detection device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A pipeline weld sealing detection device comprises a base, a motor is fixedly connected to the top of the base, a connecting seat is slidably connected to the top of the base through a cylinder, a rotating gear is rotatably connected inside the connecting seat, the rotating gear is fixedly connected to the output end of the motor through a coupling, gear rods are meshed on both sides of the rotating gear, the gear rods are slidably connected to the inside of the connecting seat, two grooves are symmetrically provided at both ends of the top of the connecting seat, and further comprises;

[0007] A wrapping mechanism, wherein two wrapping mechanisms are symmetrically slidably connected to the middle of the top of the connecting seat, and the wrapping mechanism is used to fully wrap the weld of the steel pipe;

[0008] A sealing mechanism, which is arranged inside the covering mechanism and is used to seal the communicating part inside the covering mechanism;

[0009] A supplementary mechanism, which is arranged inside the covering mechanism and is used to assist the sealing mechanism in completing a comprehensive sealing work;

[0010] A plug-in mechanism, the plug-in mechanism is fixedly connected to the surface of the covering mechanism, and the plug-in mechanism is used to assist the two covering mechanisms in docking and fixing;

[0011] And a locking mechanism, wherein the locking mechanism is arranged inside the covering mechanism and is used to further lock and reinforce the plug-in mechanism.

[0012] In the above-mentioned pipeline weld sealing detection device, the covering mechanism includes two jackets and two annular airbags, the two jackets are symmetrically slidably connected to the middle part of the top of the connecting seat, and the two jackets are respectively fixedly connected to the tops of the two gear rods, the two annular airbags are respectively fixedly connected to the inside of the two jackets, and the opposite sides of the two annular airbags are open, the surface of one of the annular airbags is connected to an air pipe, and the other end of the air pipe is penetrated by the top of one of the jackets, and the surfaces of the two jackets away from each other are provided with connecting windows, and the inside of the connecting window is slidably connected with a connecting plate, one side of the surface of the connecting plate is fixedly connected to the annular airbag, and the two ends of the two annular airbags can be plugged into each other.

[0013] In the above-mentioned pipeline weld sealing detection device, the sealing mechanism includes two connecting boxes and four catheters, the two connecting boxes are fixedly connected to the two ends of one of the annular airbags respectively, the catheter and the connecting box are arranged through, and the two catheters located above are symmetrically slidably connected to the interior of the upper connecting box, one side of the catheter surface is hinged with a pull strip, the other end of the pull strip is hinged with a pull block, the pull strip and the pull block are both slidably connected to the interior of the connecting box, one side of the pull block surface is hinged with a top strip, the other end of the top strip is hinged with a card plate, the two card plates are symmetrically slidably connected to the surface of the connecting box, the two card plates are located between the two catheters, two top plates are symmetrically slidably connected on both sides of the connecting box surface, one side of the top plate surface is fixedly connected with a guide block, one side of the pull block surface is fixedly connected with a top block, the top block is slidably connected to the interior of the connecting box, and the top block is located above the catheter, and in the process of the card plate sliding upward, the top block pushes the guide block to slide.

[0014] In the above-mentioned pipeline weld sealing detection device, the supplementary mechanism includes two fixed boxes and two connecting tubes, the two fixed boxes are respectively fixedly connected to the two ends of another annular airbag, the two connecting tubes are respectively slidably connected to the inside of the two fixed boxes, and the catheter is arranged through the fixed box. The catheter is located on both sides of the inner surface of the fixed box and is symmetrically hinged with two connecting strips, and the other end of the connecting strip is hinged with a connecting block. The connecting block and the connecting strip are both slidably connected to the inside of the fixed box, and one side of the surface of the connecting strip is hinged with an adapter plate through a top strip, and the adapter plate is slidably connected to the surface of the fixed box. The two adapter plates are symmetrically slidably connected to the two sides of the connecting tube.

[0015] In the above-mentioned pipeline weld sealing detection device, the plug-in mechanism includes a plug and a connecting groove. Four plugs are symmetrically fixedly connected to the surface of one of the jackets, and four connecting grooves are respectively opened on the surface of the other jacket. When the two jackets are close to each other, the plugs and the connecting grooves are plugged in. The interiors of the upper and lower connecting grooves on the same side are fixedly connected with a top spring, and the other end of the top spring is fixedly connected with a slider, and the slider is slidably connected to the connecting groove.

[0016] In the above-mentioned pipeline weld sealing detection device, the locking mechanism includes a guide tooth, a connecting tooth and a locking head. The guide tooth and the connecting tooth are both rotatably connected to the inside of the jacket, the guide tooth is meshed with the connecting tooth, one side of the slider is fixedly connected with a rack, the rack is slidably connected to the inside of the jacket, and the rack is meshed with the guide tooth, the locking head is rotatably connected to the top of the connecting groove, the locking head is fixedly connected to one side of the connecting tooth, a locking groove is provided on the surface of the plug, after the plug is inserted into the connecting groove, the locking head is engaged with the locking groove, one side of the connecting tooth is unidirectionally meshed with a limiting tooth, the surface of the limiting tooth is fixedly connected with a pull handle, the pull handle passes through the outside of the jacket, and the pull handle is slidably connected to the jacket, one side of the pull handle that passes through the outside of the jacket is fixedly connected with a reset spring, and the other end of the reset spring is fixedly connected to the inside of the jacket.

[0017] In the above-mentioned pipeline weld sealing detection device, a connecting rod is fixedly connected to one side of the tooth rod surface, and a moving block is fixedly connected to the other end of the connecting rod. Both ends of the connecting seat are symmetrically slidably connected to two clamping arms, and one side of the two clamping arms is fixedly connected to the two moving blocks respectively.

[0018] In the above-mentioned pipeline weld sealing detection device, one side of the connection block and the pull block surface are fixedly connected with a return spring, the other end of the return spring located on the pull block surface is fixedly connected to the inside of the connection box, and the other end of the return spring located on the connection block surface is fixedly connected to the inside of the fixed box, and two sealing strips are symmetrically clamped on the opposite sides of the two jackets, and notches are provided at the upper and lower ends of the two sealing strips located on the same jacket surface, and the upper and lower ends of the other two sealing strips are fixedly connected with extension blocks, and the extension blocks are plugged into the notches when the two jackets are close to each other.

[0019] Compared with the existing technology, the advantages of this pipeline weld sealing detection device are:

[0020] 1. The motor and the rotating gear drive the two gear rods to slide relative to each other, forcing the two jackets to approach each other, so that the weld joints of the two steel pipes can be fully wrapped without being affected by the length of the steel pipes, ensuring the convenience of work;

[0021] 2. Two annular airbags are connected to form a closed loop airbag. Air is injected into the airbag through the air pipe. The height of the connecting plate in the connecting window is observed to determine whether the air in the airbag is leaking. This can determine whether there are cracks at the weld, and ensure comprehensive inspection of the weld.

[0022] 3. By pushing the conduit and the connecting pipe against each other, the pull block and the connecting block respectively drive the top block hinged thereto to slide, thereby driving the card plate and the adapter plate to expand outward, and driving the two top plates to expand outward, so as to ensure that the joints of the two annular airbags maintain a close fit and improve the sealing performance;

[0023] In summary, the present invention drives the two gear rods to slide relative to each other through a motor and a rotating gear, forcing the two jackets to approach each other, and can fully wrap the weld connection of the two steel pipes without being affected by the length of the steel pipes. The two annular airbags are plugged into each other to form an airbag in a closed loop, and the guide tube and the connecting pipe push each other to drive the pull block and the connecting block to respectively drive the top block hinged thereto to slide, thereby driving the clamping plate and the adapter plate to expand outward, and driving the two top plates to expand outward, thereby ensuring that the two annular airbags maintain a tight fit at the junction, injecting air into the airbag through the air pipe, and judging whether the air in the airbag is leaking by observing the height of the connecting plate in the connecting window, it can be judged whether there is a crack in the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the bottom of the connecting seat of the present invention;

[0026] Figure 3 is a schematic diagram of a cross-sectional structure of a connecting rod of the present invention;

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the top of the connecting seat of the present invention;

[0028] Figure 5 It is a schematic diagram of the cross-sectional structure of the jacket of the present invention;

[0029] Figure 6 It is a schematic diagram of the connection structure of the return spring of the present invention;

[0030] Figure 7 It is a schematic cross-sectional structural diagram of the connection box of the present invention;

[0031] Figure 8 It is a schematic cross-sectional structural diagram of a fixing box of the present invention;

[0032] Fig. 9 is a schematic cross-sectional structural diagram of the locking mechanism of the present invention;

[0033] Fig.10 The present invention Fig. 9 A schematic diagram of the partially enlarged structure at center A;

[0034] Fig.11 is a schematic diagram of the cross-sectional structure of the guide gear of the present invention;

[0035] Fig.12 The present invention Fig.11 A schematic diagram of the partially enlarged structure at B in the middle;

[0036] Fig.13 It is a schematic diagram of the cross-sectional structure of the connection groove of the present invention.

[0037] In the figure: 1, base; 2, motor; 3, connecting seat; 4, rotating gear; 5, gear rod; 6, groove; 7, covering mechanism; 701, jacket; 702, annular airbag; 8, sealing mechanism; 801, connecting box; 802, catheter; 9, supplementary mechanism; 901, fixing box; 902, connecting pipe; 10, plug-in mechanism; 101, plug; 102, connecting groove; 11, locking mechanism; 111, guide tooth; 112, connecting tooth; 113, locking head; 12, air pipe; 13, Connecting window; 14, connecting plate; 15, pull bar; 16, pull block; 17, top bar; 18, clamping plate; 19, top plate; 20, guide block; 21, top block; 22, connecting bar; 23, connecting block; 24, adapter plate; 25, top spring; 26, slider; 27, rack; 28, locking groove; 29, limit tooth; 30, pull handle; 31, spring; 32, connecting rod; 33, moving block; 34, clamping arm; 35, return spring; 36, sealing strip; 37, notch; 38, extension block. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] Reference Figure 1-Figure 13A pipeline weld sealing detection device includes a base 1, a motor 2 is fixedly connected to the top of the base 1, a connecting seat 3 is slidably connected to the top of the base 1 through a cylinder, a rotating gear 4 is rotatably connected to the inside of the connecting seat 3, and the rotating gear 4 is fixedly connected to the output end of the motor 2 through a coupling, and gear rods 5 are meshed on both sides of the rotating gear 4, and the gear rods 5 are slidably connected to the inside of the connecting seat 3. Two grooves 6 are symmetrically provided at both ends of the top of the connecting seat 3, a connecting rod 32 is fixedly connected to one side of the surface of the gear rod 5, and a moving block 33 is fixedly connected to the other end of the connecting rod 32, and two clamping arms 34 are symmetrically slidably connected to the two moving blocks 33 at both ends of the connecting seat 3, and one side of the two clamping arms 34 is fixedly connected to the two moving blocks 33 respectively, and also includes a covering mechanism 7, and the two covering mechanisms 7 are symmetrically slidably connected to the middle part of the top of the connecting seat 3, and the covering mechanism 7 is used to The weld of the steel pipe is fully wrapped, and the wrapping mechanism 7 includes two jackets 701 and two annular air bags 702. The two jackets 701 are symmetrically slidably connected to the middle part of the top of the connecting seat 3, and the two jackets 701 are respectively fixedly connected to the tops of the two gear rods 5, and the two annular air bags 702 are respectively fixedly connected to the insides of the two jackets 701, and the opposite sides of the two annular air bags 702 are both open. The surface of one of the annular air bags 702 is connected to the air pipe 12, and the other end of the air pipe 12 is penetrated by the top of one of the jackets 701. The surfaces of the two jackets 701 away from each other are provided with connecting windows 13, and the inside of the connecting window 13 is slidably connected with a connecting plate 14, one side of the surface of the connecting plate 14 is fixedly connected to the annular air bag 702, and the two ends of the two annular air bags 702 can be plugged into each other.

[0041] Among them, the whole device is placed below the weld of the pipeline through the base 1, and the motor 2 drives the rotating gear 4 to rotate, so as to force the two gear rods 5 to move relative to each other and drive the two jackets 701 to approach each other. At the same time, the movement of the gear rod 5 will drive the connecting rods 32 on both sides to move synchronously, and the two clamping arms 34 on the same side can be driven to approach each other through the moving block 33, and the pipeline can be clamped and fixed in cooperation with the groove 6, so as to ensure the straight state of the pipeline, prevent the weld from being too far away from the end of the pipeline and causing a slight falling deformation, ensure that the jacket 701 and the annular airbag 702 can be in close contact with the surface of the pipeline, and further improve the overall sealing effect, and inject air into the annular airbags 702 that are plugged into each other through the air pipe 12. At this time, the annular airbag 702 that forms a closed loop expands due to the increase of air inside it, and pushes the connecting plate 14 to slide along the connecting window 13 in the direction away from the annular airbag 702. After stopping the gas injection, the position of the connecting plate 14 in the connecting window 13 is observed to judge whether there are defects such as cracks in the weld.

[0042] The sealing mechanism 8 is arranged inside the covering mechanism 7. The sealing mechanism 8 is used to seal the internal communication part of the covering mechanism 7. The sealing mechanism 8 includes two connection boxes 801 and four conduits 802. The two connection boxes 801 are respectively fixedly connected to the two ends of one of the annular airbags 702. The conduits 802 and the connection boxes 801 are arranged through, and the two conduits 802 located above are symmetrically slidably connected to the inside of the upper connection box 801. One side of the surface of the conduit 802 is hinged with a pull rod 15, and the other side of the pull rod 15 is hinged with a pull rod 15. A pull block 16 is hinged at one end, and the pull strip 15 and the pull block 16 are both slidably connected to the inside of the connection box 801. A top strip 17 is hinged on one side of the surface of the pull block 16, and a card plate 18 is hinged on the other end of the top strip 17. The two card plates 18 are symmetrically slidably connected to the surface of the connection box 801. The two card plates 18 are located between the two conduits 802. Two top plates 19 are symmetrically slidably connected on both sides of the surface of the connection box 801. A guide block 20 is fixedly connected to one side of the surface of the top plate 19. A top block 21 is fixedly connected to one side of the surface of the pull block 16. The top block 21 The guide block 20 is slidably connected to the inside of the connection box 801, and the top block 21 is located above the conduit 802. When the card plate 18 slides upward, the top block 21 pushes the guide block 20 to slide. The supplementary mechanism 9 is arranged inside the covering mechanism 7. The supplementary mechanism 9 is used to assist the sealing mechanism 8 to complete the comprehensive sealing work. The supplementary mechanism 9 includes two fixed boxes 901 and two connecting pipes 902. The two fixed boxes 901 are respectively fixedly connected to the two ends of another annular airbag 702. The two connecting pipes 902 are respectively connected to the two fixed boxes. 901 is internally slidably connected, and the conduit 802 is arranged through the fixed box 901. The conduit 802 is located on both sides of the inner surface of the fixed box 901 and is symmetrically hinged with two connecting strips 22. The other end of the connecting strip 22 is hinged with a connecting block 23. The connecting block 23 and the connecting strip 22 are both slidably connected to the inside of the fixed box 901. One side of the surface of the connecting strip 22 is hinged with an adapter plate 24 through a top strip 17. The adapter plate 24 is slidably connected to the surface of the fixed box 901. The two adapter plates 24 are symmetrically slidably connected to both sides of the connecting tube 902.

[0043] Among them, through the two jackets 701 approaching each other, the two conduits 802 located at the top and the two conduits 802 located at the bottom will respectively contact the two connecting pipes 902 located at the upper and lower sides, and form a mutual pushing movement effect. Through the movement of the conduits 802, the two pull blocks 16 can be driven by the pull bar 15 to slide in the direction close to the two conduits 802, so that the card plate 18 is pushed upward by the top bar 17, and after the pull block 16 slides and moves a distance, the guide block 20 can be pushed to slide by the top block 21, so as to force the two card plates 18 located at both ends of the surface of the same connection box 801 to expand outward, so as to 19 squeezes the contact points where the two annular airbags 702 are inserted into each other, forcing the contact surfaces of the two to fit closely to each other, thereby ensuring the sealing of the connection. In addition, through the sliding of the connecting tube 902, the connecting strips 22 on both sides of its surface drive the connecting block 23 to slide toward the direction close to the connecting tube 902, thereby driving the two adapter plates 24 to slide upward through the top strip 17, and at this time the adapter plate 24 is just between the outward-extended and upward-topped top plate 19 and the card plate 18, and can support the area where the top plate 19 and the card plate 18 are not in contact, further ensuring the comprehensive fit of the contact surfaces of the two annular airbags 702, and further improving the overall sealing effect.

[0044] The plug-in mechanism 10 is fixedly connected to the surface of the covering mechanism 7. The plug-in mechanism 10 is used to assist the two covering mechanisms 7 to dock and fix. The plug-in mechanism 10 includes a plug 101 and a connecting groove 102. Four plugs 101 are symmetrically fixedly connected to the surface of one of the jackets 701. Four connecting grooves 102 are respectively opened on the surface of another jacket 701. When the two jackets 701 are close to each other, the plugs 101 are plugged into the connecting grooves 102. The interiors of the upper and lower connecting grooves 102 on the same side are fixedly connected with a top spring 25. The other end of the top spring 25 is fixedly connected with a slider 26. The slider 26 is slidably connected to the connecting groove 102. The locking mechanism 11 is arranged inside the covering mechanism 7. The locking mechanism 11 is used to further lock and reinforce the plug-in mechanism 10. The locking mechanism 11 includes a guide tooth 111, a connecting tooth 112 and a locking head 113. The guide tooth 1 11 and the connecting tooth 112 are both rotatably connected to the inside of the jacket 701, the guide tooth 111 is meshed with the connecting tooth 112, one side of the slider 26 is fixedly connected with a rack 27, the rack 27 is slidably connected to the inside of the jacket 701, and the rack 27 is meshed with the guide tooth 111, the locking head 113 is rotatably connected to the top of the connecting groove 102, the locking head 113 is fixedly connected to one side of the connecting tooth 112, a locking groove 28 is provided on the surface of the plug 101, after the plug 101 is inserted into the connecting groove 102, the locking head 113 is engaged with the locking groove 28, one side of the connecting tooth 112 is unidirectionally meshed with a limiting tooth 29, the surface of the limiting tooth 29 is fixedly connected with a pull handle 30, the pull handle 30 passes through the outside of the jacket 701, and the pull handle 30 is slidably connected to the jacket 701, and the pull handle 30 is fixedly connected to the side of the pull handle 30 that passes through the outside of the jacket 701 is fixedly connected with a spring 31, and the other end of the spring 31 is fixedly connected to the inside of the jacket 701.

[0045] Among them, the connection stability between the two sleeves 701 can be improved through the plug-in effect between the plug 101 and the connecting groove 102, and after the upper and lower plugs 101 on one side are inserted into the corresponding connecting groove 102, the slider 26 inside the connecting groove 102 will be pushed to squeeze the top spring 25 to slide, and the rack 27 will be driven to slide during the sliding process, thereby forcing the guide tooth 111 to engage and rotate and drive the connecting tooth 112 to rotate, and finally drive the locking head 113 to rotate from the top of the connecting groove 102 to the inside of the connecting groove 102, and clamp with the locking groove 28 on the surface of the plug 101, so as to further improve the tightness of the overall connection and ensure the sealing effect.

[0046] A return spring 35 is fixedly connected to one side of the surface of the connecting block 23 and the pulling block 16, the other end of the return spring 35 located on the surface of the pulling block 16 is fixedly connected to the inside of the connecting box 801, and the other end of the return spring 35 located on the surface of the connecting block 23 is fixedly connected to the inside of the fixing box 901, and two sealing strips 36 are symmetrically clamped on the opposite sides of the two jackets 701, and slots 37 are provided at the upper and lower ends of the two sealing strips 36 located on the same surface of the jacket 701, and the upper and lower ends of the other two sealing strips 36 are fixedly connected with extension blocks 38, and the extension blocks 38 are plugged into the slots 37 when the two jackets 701 are close to each other.

[0047] Among them, during the sliding process of the pulling block 16 and the connecting block 23, an extrusion effect is formed on the reset spring 35. After the two jackets 701 are separated from each other, the elastic reset effect of the reset spring 35 forces the structures such as the conduit 802 and the connecting pipe 902 to automatically reset. Through the sealing effect of the two sealing strips 36, when the two jackets 701 contact and cover the surface of the pipeline, close contact with the surface of the pipeline is guaranteed to ensure the sealing effect. In addition, through the plug-in effect between the extension block 38 and the notch 37, it can be ensured that there is no gap at the end points where the two sealing strips 36 contact each other, thereby further improving the sealing performance.

[0048] The specific working principle and use method of the present invention are explained in detail below: When in use, the first step is to place the entire device below the weld of the pipeline through the base 1, and drive the rotating gear 4 to rotate through the motor 2, so as to force the two gear rods 5 to move relative to each other and drive the two jackets 701 to approach each other. At the same time, the movement of the gear rod 5 will drive the connecting rods 32 on both sides to move synchronously, and the two clamping arms 34 on the same side can be driven to approach each other through the moving block 33, and the pipeline can be clamped and fixed with the groove 6, and air is injected into the mutually plugged annular airbags 702 through the air pipe 12. At this time, the annular airbag 702 forming a closed loop expands due to the increase of air inside it, and the push connecting plate 14 slides along the connecting window 13 in the direction away from the annular airbag 702. After stopping the gas injection, the position of the connecting plate 14 in the connecting window 13 is observed to judge whether there are defects such as cracks in the weld.

[0049] In the second step, the two jackets 701 are brought closer to each other, and the two conduits 802 at the top and the two conduits 802 at the bottom are respectively in contact with the two connecting tubes 902 at the upper and lower sides, and a mutual pushing movement effect is formed. The movement of the conduits 802 can drive the two pull blocks 16 to slide in the direction close to the two conduits 802 through the pull bar 15, so that the card plate 18 is pushed upward by the push bar 17, and after the pull block 16 slides a certain distance, the push block 21 can push the guide block 20 to slide, so as to force the two card blocks at both ends of the surface of the same connection box 801 to move. The plate 18 expands outward, thereby squeezing the contact points of the two annular airbags 702 plugged into each other through the card plate 18 and the top plate 19, forcing the contact surfaces of the two to fit closely to each other, thereby ensuring the sealing of the connection. In addition, through the sliding of the connecting tube 902, the connecting strips 22 on both sides of its surface drive the connecting block 23 to slide in the direction close to the connecting tube 902, thereby driving the two adapter plates 24 to slide upward through the top strip 17, and at this time, the adapter plate 24 is just between the outward and upward top plate 19 and the card plate 18, and can support the area where the top plate 19 and the card plate 18 are not in contact;

[0050] In the third step, the connection stability between the two jackets 701 can be improved through the plug-in effect between the plug 101 and the connecting groove 102, and after the upper and lower plugs 101 on one side are inserted into the corresponding connecting groove 102, the slider 26 inside the connecting groove 102 will be pushed to squeeze the top spring 25 to slide, and the rack 27 will be driven to slide during the sliding process, thereby forcing the guide tooth 111 to mesh and rotate and drive the connecting tooth 112 to rotate, and finally drive the locking head 113 to rotate from the top of the connecting groove 102 to the inside of the connecting groove 102, and clamp with the locking groove 28 on the surface of the plug 101, so as to further improve the tightness of the overall connection and ensure the sealing effect.

[0051] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pipeline weld sealing detection device, characterized in that: The invention comprises a base (1), the top of the base (1) is fixedly connected to a motor (2), the top of the base (1) is slidably connected to a connecting seat (3) via a cylinder, the inside of the connecting seat (3) is rotatably connected to a rotating tooth (4), the rotating tooth (4) is fixedly connected to the output end of the motor (2) via a coupling, both sides of the rotating tooth (4) are meshed with a gear rod (5), the gear rod (5) is slidably connected to the inside of the connecting seat (3), two grooves (6) are symmetrically provided at both ends of the top of the connecting seat (3), and further comprises: A wrapping mechanism (7), wherein two wrapping mechanisms (7) are symmetrically slidably connected to the middle of the top of the connecting seat (3), and the wrapping mechanism (7) is used to fully wrap the weld of the steel pipe; A sealing mechanism (8), wherein the sealing mechanism (8) is arranged inside the covering mechanism (7), and the sealing mechanism (8) is used to seal the internal communicating part of the covering mechanism (7); A supplementary mechanism (9), wherein the supplementary mechanism (9) is arranged inside the covering mechanism (7), and the supplementary mechanism (9) is used to assist the sealing mechanism (8) in completing a comprehensive sealing work; A plug-in mechanism (10), the plug-in mechanism (10) being fixedly connected to the surface of the covering mechanism (7), and the plug-in mechanism (10) being used to assist in the docking and fixing of the two covering mechanisms (7); and a locking mechanism (11), wherein the locking mechanism (11) is arranged inside the covering mechanism (7), and the locking mechanism (11) is used to further lock and reinforce the plug-in mechanism (10).

2. A pipeline weld sealing detection device according to claim 1, characterized in that: The covering mechanism (7) comprises two jackets (701) and two annular airbags (702), the two jackets (701) are symmetrically slidably connected to the middle part of the top of the connecting seat (3), and the two jackets (701) are respectively fixedly connected to the tops of the two gear rods (5), the two annular airbags (702) are respectively fixedly connected to the insides of the two jackets (701), and the two annular airbags (702) are both open on opposite sides, the surface of one of the annular airbags (702) is connected to an air pipe (12), and the other end of the air pipe (12) is arranged to penetrate the top of one of the jackets (701), and the surfaces of the two jackets (701) away from each other are both provided with connecting windows (13), and the inside of the connecting window (13) is slidably connected to a connecting plate (14), one side of the surface of the connecting plate (14) is fixedly connected to the annular airbag (702), and the two ends of the two annular airbags (702) can be plugged into each other.

3. A pipeline weld sealing detection device according to claim 2, characterized in that: The sealing mechanism (8) comprises two connection boxes (801) and four conduits (802), the two connection boxes (801) are respectively fixedly connected to the two ends of one of the annular airbags (702), the conduits (802) and the connection boxes (801) are arranged through each other, and the two conduits (802) located at the top are symmetrically slidably connected to the interior of the upper connection box (801), one side of the surface of the conduit (802) is hinged with a pull strip (15), the other end of the pull strip (15) is hinged with a pull block (16), the pull strip (15) and the pull block (16) are both slidably connected to the interior of the connection box (801), one side of the surface of the pull block (16) is hinged with a top strip (17), and the top strip (17) is hinged with the top strip (17). The other end of the strip (17) is hinged with a card plate (18), and the two card plates (18) are symmetrically slidably connected to the surface of the connection box (801), and the two card plates (18) are located between the two conduits (802). Two top plates (19) are symmetrically slidably connected to the two sides of the surface of the connection box (801), and one side of the surface of the top plate (19) is fixedly connected to a guide block (20), and one side of the surface of the pull block (16) is fixedly connected to a top block (21), and the top block (21) is slidably connected to the inside of the connection box (801), and the top block (21) is located above the conduit (802). When the card plate (18) slides upward, the top block (21) pushes the guide block (20) to slide.

4. A pipeline weld sealing detection device according to claim 3, characterized in that: The supplementing mechanism (9) comprises two fixing boxes (901) and two connecting tubes (902), the two fixing boxes (901) are respectively fixedly connected to the two ends of another annular airbag (702), the two connecting tubes (902) are respectively slidably connected to the inside of the two fixing boxes (901), and the catheter (802) and the fixing box (901) are arranged through each other, the catheter (802) is located on both sides of the inner surface of the fixing box (901) and is symmetrically hinged with two connecting strips (22), the other end of the connecting strip (22) is hinged with a connecting block (23), the connecting block (23) and the connecting strip (22) are both slidably connected to the inside of the fixing box (901), one side of the surface of the connecting strip (22) is hinged with an adapter plate (24) through a top strip (17), the adapter plate (24) is slidably connected to the surface of the fixing box (901), and the two adapter plates (24) are symmetrically slidably connected to the two sides of the connecting tube (902).

5. A pipeline weld sealing detection device according to claim 1, characterized in that: The plug-in mechanism (10) comprises a plug (101) and a connection groove (102), wherein four plugs (101) are symmetrically fixedly connected to the surface of one of the jackets (701), and four connection grooves (102) are respectively opened on the surface of another jacket (701). When the two jackets (701) are close to each other, the plugs (101) and the connection grooves (102) are plugged in, and the interiors of the upper and lower connection grooves (102) located on the same side are both fixedly connected with a top spring (25), and the other end of the top spring (25) is fixedly connected with a slider (26), and the slider (26) is slidably connected to the connection groove (102).

6. A pipeline weld sealing detection device according to claim 5, characterized in that: The locking mechanism (11) comprises a guide tooth (111), a connecting tooth (112) and a locking head (113); the guide tooth (111) and the connecting tooth (112) are both rotatably connected to the inside of the jacket (701); the guide tooth (111) and the connecting tooth (112) are meshed; one side of the slider (26) is fixedly connected to a rack (27); the rack (27) is slidably connected to the inside of the jacket (701); the rack (27) and the guide tooth (111) are meshed; the locking head (113) is rotatably connected to the top of the connecting groove (102); the locking head (113) is fixedly connected to one side of the connecting tooth (112); the plug A locking groove (28) is provided on the surface of the head (101). After the plug (101) is inserted into the connecting groove (102), the locking head (113) is engaged with the locking groove (28). One side of the connecting tooth (112) is unidirectionally meshed with a limiting tooth (29). A pull handle (30) is fixedly connected to the surface of the limiting tooth (29). The pull handle (30) passes through the outside of the jacket (701), and the pull handle (30) is slidably connected to the jacket (701). A spring (31) is fixedly connected to one side of the pull handle (30) that passes through the outside of the jacket (701), and the other end of the spring (31) is fixedly connected to the inside of the jacket (701).

7. A pipeline weld sealing detection device according to claim 2, characterized in that: A connecting rod (32) is fixedly connected to one side of the surface of the gear rod (5), and a moving block (33) is fixedly connected to the other end of the connecting rod (32). Two clamping arms (34) are symmetrically slidably connected to both ends of the connecting seat (3), and one side of the two clamping arms (34) is fixedly connected to the two moving blocks (33) respectively.

8. A pipeline weld sealing detection device according to claim 4, characterized in that: One side of the surface of the connection block (23) and the pull block (16) is fixedly connected with a return spring (35), the other end of the return spring (35) located on the surface of the pull block (16) is fixedly connected to the inside of the connection box (801), and the other end of the return spring (35) located on the surface of the connection block (23) is fixedly connected to the inside of the fixed box (901), and two sealing strips (36) are symmetrically clamped on the opposite sides of the two jackets (701), and the upper and lower ends of the two sealing strips (36) located on the surface of the same jacket (701) are provided with notches (37), and the upper and lower ends of the other two sealing strips (36) are fixedly connected with extension blocks (38), and when the two jackets (701) are close to each other, the extension blocks (38) are plugged into the notches (37).

Images