An expandable umbrella tool holder for non-destructive testing of welds in large cylindrical structures

Abstract

The application discloses an expandable umbrella-shaped tool frame for nondestructive testing of a large cylinder structure weld, which comprises a cylinder body and a through hole, the through hole is integrally arranged on the left upper end inside the cylinder body, a connecting ring is integrally arranged on the left upper end of the outer wall of the cylinder body, and a connecting plate is arranged on the left side of the connecting ring. Through the design of the positioning function, the suspension line can be adjusted and processed together with the shell and the slider in the state of being hung in the cylinder body, so that the state of the shell and the slider being hung in the cylinder body is controlled within the range required by the staff. Through the design of the unfolding function, the rotating rod in the storage state can be moved to the state of being unfolded in the cylinder body, and then the unfolded rotating rod is in the umbrella shape, so that the contact sensor can judge whether the rotating rod is in contact with the edge of the opening at the bottom end of the cylinder body, and the accuracy of the detection device in detecting the weld in the cylinder body is ensured.

Description

Technical Field

[0001] This invention relates to the field of cylindrical inspection tools, specifically to an expandable umbrella-shaped tool holder for non-destructive testing of welds in large cylindrical structures. Background Technology

[0002] In chemical industrial production processes, it is crucial to strictly prevent material leaks and avoid pollution problems. Therefore, ensuring the weld performance of chemical equipment is essential. Large steel cylindrical structures with high-temperature and high-radiation internal environments are commonly found in engineering projects. To ensure the continuous and stable operation of these structures, regular non-destructive testing of the cylindrical welds is necessary.

[0003] The patent published under publication number "CN112414275A" is titled "A Roundness Inspection Device for Welds in Large Cylindrical Chemical Equipment." The inspection tool holder in this publication suffers from problems such as large weight, low reliability, high operating time and cost, and difficulty for operators, thus reducing the inspection effectiveness of cylindrical welds. Based on this, the present invention designs an expandable umbrella-shaped tool holder for non-destructive testing of welds in large cylindrical structures to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide an expandable umbrella-shaped tool holder for non-destructive testing of welds in large cylindrical structures, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a deployable umbrella-shaped tool holder for non-destructive testing of welds in large cylindrical structures, comprising a cylindrical body and a through hole, the through hole being integrally disposed on the upper left side of the inner side of the cylindrical body, a connecting ring being integrally disposed on the upper left side of the outer wall of the cylindrical body, and a connecting plate being disposed on the left side of the connecting ring, a tensioner being externally connected to the connecting plate, a positioning assembly being disposed on the outer wall of the connecting plate, the positioning assembly comprising a hollow rod being externally connected to the upper right side of the connecting plate, a positioning rod being externally connected to the lower right side of the connecting plate, a plurality of slots being integrally disposed on the lower inner side of the hollow rod, and the slots being engaged with the positioning rod, a suspension assembly being disposed inside the hollow rod, the suspension assembly comprising a suspension line fixed inside the hollow rod, a housing being fixed at the bottom of the suspension line, and a plurality of sliders being slidably connected inside the housing.

[0006] Furthermore, the connecting ring has a number of threaded holes integrally formed inside, and the connecting plate has waist-shaped holes integrally formed at both the upper and lower ends.

[0007] Furthermore, a bolt is provided inside the waist-shaped hole, and the bolt is connected to the threaded hole by a threaded connection for disassembly and assembly.

[0008] Furthermore, the top of the housing is provided with a number of limit buttons, the slider is integrally provided with a number of limit grooves, and the limit buttons are provided with limit springs.

[0009] Furthermore, a limiting device is fixedly provided at the bottom of the housing, and a detection device is fixedly provided at the bottom of the limiting device.

[0010] Furthermore, the limiting device has a number of rotating rods inside, and each rotating rod corresponds to a slider.

[0011] Furthermore, a control line is wound around the top of the rotating rod, the control line passes through the limiting device and the housing, and the end of the control line away from the rotating rod is wound and connected to the tightener.

[0012] Furthermore, a contact sensor is fixedly installed at the end of the rotating rod away from the limiting device, and the contact sensor is connected to the detection device via a wire.

[0013] Furthermore, there are four sliders and four rotating rods, and the angle between any two sliders is 90 degrees.

[0014] Furthermore, the number of control lines is four, and the control lines and suspension lines are staggered.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. Through the design of the positioning function, the present invention can adjust the suspension state of the suspension line, along with the housing and the slider, inside the cylinder, thereby controlling the suspension state of the housing and the slider inside the cylinder within the range required by the operator.

[0017] 2. Through the design of the unfolding function, the rotating rod in the stored state can be moved into the inside of the cylinder and unfolded, so that the unfolded rotating rod is in an umbrella shape. This allows the contact sensor to determine whether the rotating rod is in contact with the edge of the opening at the bottom of the cylinder, ensuring the accuracy of the subsequent detection of the weld inside the cylinder by the detection device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of an expandable umbrella-shaped tool holder for non-destructive testing of welds in large cylindrical structures according to the present invention.

[0020] Figure 2 This is a side view of the connecting ring and the connecting plate;

[0021] Figure 3 A perspective view of the connecting plate and the tensioner;

[0022] Figure 4 This is a three-dimensional view of the rotating rod unfolded.

[0023] Figure 5 A 3D diagram showing the storage of the rotating rod;

[0024] Figure 6 This is a 3D view of the housing and the slider;

[0025] Figure 7 This is the front view of the hollow rod and the positioning rod.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1-Cylinder, 2-Through hole, 3-Connecting ring, 4-Connecting plate, 5-Tightener, 6-Positioning assembly, 601-Hollow rod, 602-Positioning rod, 603-Slot, 7-Suspension assembly, 701-Suspension line, 702-Housing, 703-Slider, 8-Threaded hole, 9-Oval hole, 10-Bolt, 11-Limit button, 12-Limit groove, 13-Limit spring, 14-Limiting device, 15-Detection device, 16-Rotating rod, 17-Control line, 18-Contact sensor. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 7As shown, the device includes a cylindrical body 1 and a through hole 2. The through hole 2 is integrally set on the upper left side of the inner side of the cylindrical body 1. A connecting ring 3 is integrally set on the upper left side of the outer wall of the cylindrical body 1, and a connecting plate 4 is set on the left side of the connecting ring 3. A tensioner 5 is connected to the outside of the connecting plate 4. A positioning component 6 is set on the outer wall of the connecting plate 4. The positioning component 6 includes a hollow rod 601 connected to the upper right side of the connecting plate 4. A positioning rod 602 is connected to the lower right side of the connecting plate 4. A number of slots 603 are integrally set on the lower inside of the hollow rod 601, and the slots 603 are engaged with the positioning rod 602. A suspension component 7 is set inside the hollow rod 601. The suspension component 7 includes a suspension line 701 fixed inside the hollow rod 601. A housing 702 is fixed at the bottom of the suspension line 701. A number of sliders 703 are slidably connected inside the housing 702.

[0031] The operator first inserts the housing 702, slider 703, hollow rod 601, and positioning rod 602 into the cylinder 1 through the through hole 2, so that the suspension line 701 suspends the housing 702 and slider 703 to the lower end of the cylinder 1. In addition, the operator can rotate the hollow rod 601 to adjust the position of the suspension line 701 and the housing 702 inside the cylinder 1. The operator can also insert the positioning rod 602 into the slot 603 to lock the adjusted state of the hollow rod 601.

[0032] Example 2

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the connecting ring 3 has a number of threaded holes 8 integrally formed inside, and the connecting plate 4 has a number of oblong holes 9 integrally formed at both the top and bottom ends. Bolts 10 are installed inside the oblong holes 9. The bolts 10 are connected to the threaded holes 8 by threaded connection for assembly and disassembly. The top of the housing 702 has a number of limit buttons 11. The slider 703 has a number of limit grooves 12 integrally formed inside, and the limit buttons 11 have limit springs 13 inside. The bottom of the housing 702 is fixedly provided with a limit device 14, and the bottom of the limit device 14 is fixedly provided with a detection device 15. The limit device 14 has a number of internal components that are connected to it. There are four rotating rods 16 and four sliding blocks 703. The top of the rotating rod 16 is wrapped with a control line 17, which passes through the limiting device 14 and the housing 702. The end of the control line 17 away from the rotating rod 16 is wound and connected to the tensioner 5. The end of the rotating rod 16 away from the limiting device 14 is fixed with a contact sensor 18, which is connected to the detection device 15 by a wire. There are four sliding blocks 703 and four rotating rods 16. The angle between any two sliding blocks 703 is 90 degrees. There are four control lines 17, which are staggered with the suspension line 701.

[0034] According to the operating steps in Embodiment 1, the operator can press the limit button 11 in advance to disengage the limit spring 13 from the limit groove 12, and then adjust the length of the slider 703 extending out of the housing 702. After adjustment, the operator releases the limit button 11, and the limit spring 13 springs back into the limit groove 12, thereby locking the displacement of the slider 703. In addition, after the hollow rod 601 and the positioning rod 602 are moved into the through hole, the bolt 10 is connected to the threaded hole 8, thereby connecting the connecting ring 3 to the connecting... The plates 4 are connected as one unit. When the housing 702 moves the limiting device 14, along with the rotating rod 16 and the detection device 15, to the lower end of the inside of the cylinder 1, the operator can rotate the tensioner 5, thereby causing the control line 17 to control the rotating rod 16 to rotate, and then unfold the rotating rod 16 from the stored state to an umbrella shape. When the contact sensor 18 comes into contact with the edge of the opening at the bottom of the inside of the cylinder 1, the detection device 15 is positioned at the lower end of the inside of the cylinder 1, ensuring the accuracy of the subsequent non-destructive testing of the weld inside the cylinder 1 by the detection device 15.

Claims

1. A deployable umbrella-shaped tool holder for non-destructive testing of welds in large cylindrical structures, comprising a cylindrical body (1) and a through hole (2), characterized in that: The through hole (2) is integrally provided on the upper left side of the inside of the cylinder (1). A connecting ring (3) is integrally provided on the upper left side of the outer wall of the cylinder (1), and a connecting plate (4) is provided on the left side of the connecting ring (3). A tensioner (5) is hinged to the outside of the connecting plate (4). A positioning component (6) is provided on the outer wall of the connecting plate (4). The positioning component (6) includes a hollow rod (601) hinged to the upper right side of the connecting plate (4), and a positioning rod (602) hinged to the lower right side of the connecting plate (4). The hollow rod (601) has a number of slots (603) integrally provided at its lower end, and the slots (603) are connected to the positioning rod (602). The hollow rod (601) has a suspension assembly (7) inside, which includes a suspension line (701) fixed inside the hollow rod (601). The bottom of the suspension line (701) is fixed with a housing (702), and a number of sliders (703) are slidably connected inside the housing (702). A limiting device (14) is fixedly provided at the bottom of the housing (702), and a detection device (15) is fixedly provided at the bottom of the limiting device (14). The limiting device (14) has a number of rotating rods (16) hinged inside, and the rotating rods (16) correspond one-to-one with the slider (703); The top of the rotating rod (16) is wrapped with a control line (17), which passes through the limiting device (14) and the housing (702). The end of the control line (17) away from the rotating rod (16) is wrapped and connected to the tightener (5).

2. The deployable umbrella-shaped tool holder for non-destructive testing of welds in large cylindrical structures according to claim 1, characterized in that: The connecting ring (3) has a number of threaded holes (8) integrally provided inside, and the connecting plate (4) has waist-shaped holes (9) integrally provided at both the upper and lower ends inside.

3. The deployable umbrella-shaped tool holder for non-destructive testing of welds in large cylindrical structures according to claim 2, characterized in that: The waist-shaped hole (9) is provided with a bolt (10), and the bolt (10) and the threaded hole (8) are connected by a thread for disassembly and assembly.

4. The deployable umbrella-shaped tool holder for non-destructive testing of welds in large cylindrical structures according to claim 1, characterized in that: The top of the housing (702) is provided with a number of limit buttons (11), the slider (703) is provided with a number of limit grooves (12) integrated inside, and the limit buttons (11) are provided with limit springs (13).

5. The deployable umbrella-shaped tool holder for non-destructive testing of welds in large cylindrical structures according to claim 1, characterized in that: A contact sensor (18) is fixed at one end of the rotating rod (16) away from the limiting device (14), and the contact sensor (18) is connected to the detection device (15) by a wire.

6. The deployable umbrella-shaped tool holder for non-destructive testing of welds in large cylindrical structures according to claim 1, characterized in that: The number of sliders (703) and rotating rods (16) are both four, and the angle between each pair of sliders (703) is 90 degrees.

7. The deployable umbrella-shaped tool holder for non-destructive testing of welds in large cylindrical structures according to claim 5, characterized in that: The number of control lines (17) is four, and the control lines (17) and the suspension lines (701) are staggered.

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