A ball launching device for a pipeline inspection device
Patent Information
- Application Number
- CN202521952901.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-11
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-09-11
AI Technical Summary
[0005]本实用新型的目的在于提供一种用于管道内检测器的发球装置，解决现有检测器发球作业过程中检测器的探头线缆等缺少保护及检测器首节容易被抽出检测器发球筒的滑盘带动的技术问题
[0018]1、本实用新型中，发球装置整体呈管状，由上下分布的上顶盘和滚动盘对接拼装形成。管道内检测发球作业中，多节检测器置于上顶盘和滚动盘之间，从而在增加径向的约束，在将发球装置推入检测器发球筒内的过程中可对线缆和探头等进行一定保护。
Smart Images
Figure CN224706572U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline internal detection technology, and in particular to a ball-launching device for a pipeline internal detector. Background Technology
[0002] Fossil fuels such as oil and natural gas are generally transported via pipelines. Steel pipelines are prone to corrosion on their inner and outer walls or the accumulation of sediment and impurities that can obstruct the flow after prolonged use. Blocked or corroded pipelines, under internal pressure, are susceptible to leaks of the transported substances, and in severe cases, explosions. To ensure the safe operation of long-distance energy pipelines, regular internal inspections and cleaning are necessary. Currently, the mainstream technology involves inserting pipeline inspection devices and pigs equipped with magnetic flux leakage and ultrasonic testing capabilities into the pipeline for non-destructive testing and cleaning.
[0003] In pipeline inspection and launching operations, especially for small and medium diameter pipes, double- or multi-section internal detectors or double-section pigs are encountered. The sections are connected by universal joints to allow smooth passage through elbows, tees, etc., within the pipeline. The launching process usually involves first placing the detector on a sliding plate, with the front end of the sliding plate acting on the first section's cup (e.g., the front end of the sliding plate abutting the rear end of the first section's cup). Then, the sliding plate with multiple detector sections is pushed into the detector launching tube. Once the sliding plate is in place, a push rod is used to press against the rear end of the last detector section from back to front to limit its movement. Then, the sliding plate is pulled out of the detector launching tube from front to back before proceeding with the next operation.
[0004] During the process of pushing the slide into the detector's launching tube, the detector's probe cable and other components on the slide lack protection, and the slide and the detector's launching tube experience sliding friction, resulting in significant friction on the contact surface. Simultaneously, during the process of pulling the slide out of the detector's launching tube, the push rod acts on the last section, and the slide and the detector experience sliding friction, requiring a large pulling force. The process of pulling out the slide carries the risk of moving the first section of the detector. Utility Model Content
[0005] The purpose of this invention is to provide a launching device for a pipeline detector, solving the technical problems of insufficient protection for the detector's probe cable and the detector's first section being easily pulled away by the sliding plate when the detector's launching tube is pulled out during the launching operation of existing detectors. This invention has a simple structure and is easy to operate.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A ball-launching device for a detector inside a pipeline, the ball-launching device being tubular in shape and formed by the docking and assembly of an upper top plate and a rolling plate distributed vertically; both the rolling plate and the upper top plate are semi-annular tubes; a top frame limiting mechanism for abutting the first section of the detector is connected to the outer wall of the front end of the upper top plate;
[0008] A slider is connected to each of the two symmetrical sides of the outer wall of the rolling disk along the axial direction, and a guide rail is connected to each of the two symmetrical sides of the outer wall of the upper top disk along the axial direction; the slider and the guide rail on the same side are slidably connected; the front end of the guide rail is closed and the rear end of the guide rail is open.
[0009] The top frame limiting mechanism includes several top frame limiting components radially distributed along the outer wall of the upper top plate; the top frame limiting component includes a top frame mounting plate and a top frame; the lower end of the top frame mounting plate is fixed to the outer wall of the upper top plate, and the rear end of the top frame is hinged to the upper end of the top frame mounting plate; the top frame can rotate back and forth, and after rotating forward, the front end of the top frame is located on the front side of the upper top plate.
[0010] A plurality of inner nylon universal balls are axially connected to the inner bottom wall of the rolling disk; a plurality of outer nylon universal balls are axially connected to the outer bottom wall of the rolling disk.
[0011] Furthermore, a top receiving plate is connected to the rear end of the rolling disk; a receiving plate is connected to the rear end of the upper top disk.
[0012] Furthermore, the axial length of the upper top plate is less than the axial length of the rolling plate; the axial length of the guide rail is equal to the axial length of the upper top plate.
[0013] Furthermore, a stop pin is connected to the front end of the top frame, and the front part of the lower end of the top frame is an arc surface.
[0014] Furthermore, the guide rail is an L-shaped guide rail, and the slider is an L-shaped slider.
[0015] Furthermore, the main body of the ball-serving device is generally cylindrical; the rolling disc is a semi-circular tube with an inner radius equal to the sum of the outer radius of the cup and the height of the inner nylon universal ball; the top plate is a semi-circular tube with an inner radius equal to the sum of the outer radius of the cup and the height of the inner nylon universal ball.
[0016] Furthermore, the bottom wall of the rolling disk is provided with several drain outlets.
[0017] Compared with the prior art, the present invention provides a ball launching device for a pipe detector, which has the following advantages:
[0018] 1. In this utility model, the ball-serving device is tubular in shape, formed by the assembly of an upper top plate and a rolling plate arranged vertically. During the ball-serving operation inside the pipe, multiple detector sections are placed between the upper top plate and the rolling plate, thereby increasing radial constraint and providing some protection for cables and probes during the process of pushing the ball-serving device into the detector's ball-serving tube.
[0019] 2. In this invention, a plurality of outer nylon universal balls are axially connected to the outer bottom wall of the rolling disk; a plurality of inner nylon universal balls are axially connected to the inner bottom wall of the rolling disk. When the ball-launching device, carrying the detector, is pushed into the detector ball-launching tube, the outer nylon universal balls on the outer bottom wall of the rolling disk roll and rub against the inner wall of the detector ball-launching tube, and there is no direct friction between the outer bottom wall of the rolling disk and the inner wall of the detector ball-launching tube.
[0020] 3. Several outer nylon universal balls are axially connected to the outer bottom wall of the rolling disk. The sliding friction between the outer bottom wall of the rolling disk and the inner wall of the detector ball launching tube can be avoided by the outer nylon universal balls, making the operation of pushing the detector and pulling out the rolling disk relatively labor-saving and efficient.
[0021] 4. This utility model also includes a top frame limiting mechanism, which can be used to hold the first section detector in place, thereby limiting the first section detector and preventing the detector from being moved backward during the operation of the rolling disc exiting the detector ball launching tube. Attached Figure Description
[0022] Figure 1 This is a perspective view of the ball-serving device in this utility model.
[0023] Figure 2 This is a right view of the serving device in this utility model.
[0024] Figure 3 This is a schematic diagram of the ball-serving device in use according to this utility model (including the detector).
[0025] Figure 4 This is a top view of the serving device in this utility model.
[0026] Figure 5 This is a rear view of the serving device in this utility model.
[0027] Figure 6 This is a front view of the ball-serving device in this utility model.
[0028] Figure 7 This is a magnified view of part A.
[0029] In the picture:
[0030] 1-Rolling disk, 2-Upper top disk, 3-Top frame limit assembly, 4-Detector;
[0031] 11-Top retractable plate, 12-Inner nylon universal ball joint, 13-Outer nylon universal ball joint, 15-Slider;
[0032] 21-Collection plate, 22-Guide rail;
[0033] 31-Top frame mounting plate, 32-Connecting pin, 33-Top frame, 34-Stop pin, 35-Arc surface, 41-Leather cup. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] like Figures 1-7 As shown, this utility model provides a ball launching device for a detector inside a pipeline. The ball launching device is generally cylindrical and is formed by the docking and assembly of an upper top plate 2 and a rolling plate 1 distributed vertically. Both the rolling plate 1 and the upper top plate 2 are semi-circular tubes. A top frame limiting mechanism for limiting the detector is connected to the outer wall of the front end of the upper top plate 2.
[0036] In this embodiment, a slider 15 is symmetrically connected to each of the two sides of the outer wall of the rolling disk 1 along the axial direction (e.g., Figure 5 As shown, a slider 15 is connected to each of the left and right sides of the outer wall of the rolling disk 1, and a guide rail 22 is connected to each of the symmetrical sides of the outer wall of the top disk 2 along the axial direction. Figure 5 As shown, a guide rail 22 is connected to each of the left and right sides of the outer wall of the upper top plate 2; the slider 15 located on the same side is slidably connected to the guide rail 22. The slider 15 is fixedly connected to the outer wall of the rolling plate 1, and the guide rail 22 is fixedly connected to the outer wall of the upper top plate 2.
[0037] The rear end of the guide rail 22 is open, meaning that the rear end face of the guide rail 22 has an opening, allowing the slider to enter and exit from the rear end of the guide rail 22. The front end of the guide rail 22 is closed, meaning that the front end of the guide rail 22 has a closed end face.
[0038] Specifically, in this embodiment, both the upper top plate 2 and the rolling plate 1 are semi-circular tubes, which are assembled together to form a ball-launching device. Furthermore, the cylindrical cavity between the upper top plate 2 and the rolling plate 1 after assembly is used to place the detector (or "ball"). Figure 3 As shown, Figure 3 In the cylindrical cavity between the upper top plate 2 and the rolling plate 1, two detector sections 4 are placed. Each detector section 4 includes a cup 41 at both its front and rear ends, and the two detector sections 4 are connected by a universal joint. At the same time, the front part of the first detector section is stopped and limited by the top frame limiting mechanism.
[0039] Specifically, the upper plate 2 and the rolling plate 1 are slidably connected and detachable. During assembly, the rolling plate 1 remains stationary, and the rear end of the guide rail 22 is inserted into the front end of the slider 15. The guide rail 22 slides along the slider 15 from front to back. When the front end of the slider 15 abuts against the closed end face of the front end of the guide rail 22, the guide rail 22 slides into place, achieving the assembly of the upper plate 2 and the rolling plate 1. Correspondingly, after reversing the operation, the upper plate 2 and the rolling plate 1 can be separated. The closed end face of the front end of the guide rail 22 acts as a limit, preventing the guide rail 22 from moving further relative to the slider 15.
[0040] Preferably, in this embodiment, the axial length of the upper top plate 2 is less than the axial length of the rolling plate 1; the axial length of the guide rail 22 is equal to the axial length of the upper top plate 2. When the front end of the slider 15 abuts against the closed end face of the front end of the guide rail 22 (e.g. Figure 1 and Figure 2 As shown, the rear end of the rolling disk 1 is flush with the rear end of the upper disk 2, but the front end of the rolling disk 1 is not flush with the front end of the upper disk 2.
[0041] In this embodiment, the guide rail 22 is an L-shaped guide rail, and the slider 15 is an L-shaped slider, and the two are matched.
[0042] In this embodiment, a plurality of outer nylon universal balls 13 are axially connected to the outer bottom wall of the rolling disk 1; a plurality of inner nylon universal balls 12 are axially connected to the inner bottom wall of the rolling disk 1. Specifically, as shown... Figure 1 As shown, four rows of circular holes are arranged axially on the bottom wall of the rolling disk 1 for pressing in nylon universal balls. The middle two rows of holes are used to press in the outer nylon universal ball 13, and the other two rows are used to press in the inner nylon universal ball 12. Figure 7 As shown, the spherical surface of the inner nylon omnidirectional ball 12 is located above the inner wall of the rolling disk 1, and the spherical surface of the outer nylon omnidirectional ball 13 is located below the outer wall of the rolling disk 1.
[0043] like Figure 2 As shown, specifically in this embodiment, the rolling disk 1 is a semi-circular tube with an inner radius equal to the sum of the outer radius of the diaphragm cup and the height of the inner nylon universal ball 12; the top disk 2 is a semi-circular tube with an inner radius equal to the sum of the outer radius of the diaphragm cup and the height of the inner nylon universal ball 12.
[0044] Specifically, in this embodiment, a top receiving plate 11 is connected to the rear end of the rolling disk 1; and a receiving plate 21 is connected to the rear end of the upper top disk 2. For example... Figure 3 As shown, with the top plate 2 and the rolling plate 1 assembled together, the top receiving plate 11 and the receiving plate 21 are aligned, with a gap between them. Figure 2 and Figure 3 As shown, the rear end of guide rail 22 is flush with the rear end of top plate 2.
[0045] Preferably, in this embodiment, the top frame limiting mechanism includes three sets of top frame limiting components radially distributed along the outer wall of the upper top plate 2; such as Figures 2 to 6 As shown, each set of top frame limiting components includes a top frame mounting plate 31 and a top frame 33; the lower end of the top frame mounting plate 31 is fixed to the outer wall of the upper top plate 2, and the rear end of the top frame 33 is hinged to the upper end of the top frame mounting plate 31; the top frame 33 can rotate back and forth, and after rotating forward, the front end of the top frame 33 is located on the front side of the upper top plate 2 (specifically as shown in the figure). Figure 2 and 4 (As shown).
[0046] Specifically, pin holes are provided at the rear end of the top frame 33 and the upper end of the top frame mounting plate 31, and connecting pins 32 are inserted into the pin holes. Through the connection between the pin holes and the connecting pins 32, the rear end of the top frame 33 is hinged to the upper end of the top frame mounting plate 31, thereby enabling the top frame 33 to rotate back and forth. Specifically, as... Figures 2-4 As shown, after flipping forward, the top frame 33 is tilted, and the front end of the top frame 33 is located in front of the upper top plate 2.
[0047] Specifically, a stop pin 34 is connected to the front end of the top frame 33, and the lower front part of the top frame 33 is an arc surface 35. The stop pin 34 can be inserted into the limiting hole on the first section of the detector to prevent the first section of the detector from moving radially. The arc surface 35 is located at the lower front part of the top frame 33. When the upper top plate 2 is pulled out backward from the detector's ball launching tube, the top frame 33 can be flipped back and forth. When the top frame 33 encounters the probe cup, it will rotate upward and make smooth contact with the detector through the arc surface 35, which can reduce scratches and damage to the detector during the sliding process.
[0048] Preferably, in this embodiment, a plurality of drain outlets are provided on the bottom wall of the rolling disk 1.
[0049] Before the detector is sent into the detector launching tube, there will still be some liquid residue inside the launching tube. During the process of sending the detector into the launching tube, some residual liquid may enter the upper surface of the rolling disk 1; the liquid residue on the upper surface of the rolling disk 1 can be discharged through the drain port, reducing the amount of cleaning work required for the upper surface of the rolling disk.
[0050] The method of using the serving device in this embodiment is briefly as follows:
[0051] First, the rolling disk 1 and the top disk 2 are in a separated state. The multi-section detector is placed on the upper inner wall of the rolling disk 1 and in contact with the spherical surface of the inner nylon universal ball 12. The multi-section detector is dragged forward along the inner nylon universal ball 12 until the front end of the first section detector is dragged to the designated position.
[0052] Next, assemble the top plate 2 with the rolling plate 1, that is, insert the rear end of the guide rail 22 into the front end of the slider 15. When the front end of the slider 15 abuts against the closed end face of the front end of the guide rail 22 (at this time, the top receiving plate 11 at the rear end of the ball-serving device is flush with the receiving plate 21, as shown in the image). Figure 3 As shown in the diagram, the guide rail 22 slides into place, achieving the docking and assembly of the upper plate 2 and the rolling plate 1. During the backward sliding of the guide rail 22 along the slider 15, the operator can counteract the movement of the top plate 11 to prevent the rolling plate 1 from moving back and forth.
[0053] Then, using the connecting pin 32, the rear end of the top frame 33 is hinged to the upper end of the top frame mounting plate 31, and the top frame 33 is flipped forward. The stop pin 34 is inserted into the limiting hole on the first section detector, and the front end of the top frame 33 abuts against the first section detector. Figure 3 As shown. During the process of inserting the stop pin 34 into the limiting hole on the first section detector, the position of the first section detector can be adjusted appropriately so that the stop pin 34 is aligned and inserted into the limiting hole.
[0054] Next, the serving device with the built-in detector is placed entirely into the detector serving tube. The outer nylon omnidirectional ball 13 rolls into contact with the bottom wall of the detector serving tube, and the serving device is pushed into the designated position inside the detector serving tube from the entrance. During the forward pushing of the serving device, the front end of the slider 15 abuts against the closed end face of the guide rail 22, and the end of the top frame 33 abuts against the first detector section. The thrust acts on the top retractor plate 11, pushing the serving device into the detector serving tube. Finally, the thrust acts on the first detector section through the top frame limiting assembly.
[0055] Once the serving device with the built-in detector is positioned at the designated location inside the detector's serving tube, the process of removing the serving device from the detector's serving tube can be initiated. A brief overview of the process is as follows:
[0056] The collecting plate 21 is held in place, and the rolling plate 1 is pulled backward from the detector launching tube by pulling the collecting plate 11. Since the collecting plate 21 is held forward at this time, the upper plate 2 will not be driven to move backward during the pulling of the collecting plate 11; at the same time, while the rolling plate 1 is pulled backward, the outer nylon universal ball 13 rolls relative to the inner wall of the detector launching tube, and the inner nylon universal ball 12 rolls relative to the lower end of the detector. The first section of the detector is held in place by the top frame limiting component and will not be easily driven backward by the rolling plate 1.
[0057] After the rolling disk 1 exits the detector launching tube, the upper top disk 2 is pulled out of the detector launching tube by pulling the retracting plate 21 backward. During this process, the top frame 33 will rotate upward when it encounters the probe cup, and will make smooth contact with the detector through the arc surface 35.
[0058] Throughout the entire ball-launching process described above, the annular tube formed by the upper top plate 2 and the rolling plate 1 protects the probe cables, etc.; the top frame 33 acts on the first detector section, restricting the movement of the first detector section during the backward pulling of the rolling plate 1. At the same time, the inner nylon universal ball 12 and the detector, as well as the outer nylon universal ball 13 and the inner wall of the detector's ball-launching tube, experience rolling friction, reducing the force required to push and pull the rolling plate 1, thus saving time and effort.
Claims
1. A ball-launching device for a pipe detector, characterized in that: The ball-serving device is tubular in shape and is formed by the docking and assembly of an upper top plate (2) and a rolling plate (1) distributed vertically. Both the rolling plate (1) and the upper top plate (2) are semi-circular tubes. A top frame limiting mechanism for resisting the first section detector is connected to the outer wall of the front end of the upper top plate (2). The outer walls of the rolling disk (1) are symmetrically connected to a slider (15) along the axial direction on both sides, and the outer walls of the top disk (2) are symmetrically connected to a guide rail (22) along the axial direction on both sides; the slider (15) and the guide rail (22) on the same side are slidably connected; the front end of the guide rail (22) is closed and the rear end of the guide rail (22) is open; The top frame limiting mechanism includes several top frame limiting components radially distributed along the outer wall of the upper top plate (2); the top frame limiting components include a top frame mounting plate (31) and a top frame (33); the lower end of the top frame mounting plate (31) is fixed to the outer wall of the upper top plate (2), and the rear end of the top frame (33) is hinged to the upper end of the top frame mounting plate (31); the top frame (33) flips and moves back and forth, and after flipping forward, the front end of the top frame (33) is located on the front side of the upper top plate (2); The inner bottom wall of the rolling disk (1) is axially connected with a plurality of inner nylon universal balls (12); the outer bottom wall of the rolling disk (1) is axially connected with a plurality of outer nylon universal balls (13).
2. The ball-launching device for a pipe detector according to claim 1, characterized in that: The rear end of the rolling disk (1) is connected to a top receiving plate (11); the rear end of the upper top disk (2) is connected to a receiving plate (21).
3. A ball-launching device for a pipe detector according to claim 2, characterized in that: The axial length of the upper top plate (2) is less than the axial length of the rolling plate (1); the axial length of the guide rail (22) is equal to the axial length of the upper top plate (2).
4. A ball-launching device for a pipe detector according to any one of claims 1-3, characterized in that: The top frame (33) is also connected to a stop pin (34) at its front end, and the lower front part of the top frame (33) is an arc surface (35).
5. A ball-launching device for a pipe detector according to claim 4, characterized in that: The guide rail (22) is an L-shaped guide rail, and the slider (15) is an L-shaped slider.
6. A ball-launching device for a pipe detector according to claim 5, characterized in that: The main body of the ball-serving device is in the shape of a cylindrical tube; the rolling disc (1) is a semi-circular tube with an inner radius equal to the sum of the outer radius of the cup and the height of the inner nylon universal ball (12); the top plate (2) is a semi-circular tube with an inner radius equal to the sum of the outer radius of the cup and the height of the inner nylon universal ball (12).
7. A ball-launching device for a pipe detector according to claim 6, characterized in that: The bottom wall of the rolling disk (1) is provided with several drain outlets.