Unfoldable umbrella-shaped tool rack for nondestructive testing of welding seams of large cylindrical structure

Abstract

The expandable umbrella-shaped tool rack comprises a barrel and a through hole, the through hole is integrally formed in the upper end of the left side in the barrel, a connecting ring is integrally arranged at the upper end of the left side of the outer wall of the barrel, and a connecting plate is arranged on the left side of the connecting ring. Through the design of the positioning function, the suspension state of the suspension line together with the shell and the sliding block in the cylinder can be adjusted, so that the suspension state of the shell and the sliding block in the cylinder is controlled within the range required by a worker. Through the design of the unfolding function, the rotating rod in the folded state can be moved to the interior of the barrel to be unfolded, and then the unfolded rotating rod is in an umbrella shape, so that the contact sensor judges whether the rotating rod makes contact with the edge of the opening in the bottom end of the interior of the barrel or not; and the accuracy of subsequent detection of the welding seam in the cylinder by the detection device is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of cylinder detection tools, in particular to an expandable umbrella-shaped tool rack used for nondestructive detection of welds of large cylinder structures. Background Art

[0002] In the chemical industry production process, it is necessary to strictly prevent material leakage and avoid leakage pollution and other problems. Therefore, for chemical equipment, it is very important to ensure the performance of the equipment's welds. Large steel cylindrical structures with high temperature and high radiation internal environments are common in engineering. In order to ensure the continuous and stable operation of the structure, it is necessary to conduct non-destructive testing of the cylinder welds regularly.

[0003] The patent name is "A large cylindrical chemical equipment weld roundness detection device" with publication number "CN112414275A". The detection tool holder in the public document has the problems of large mass and low reliability, high operation time cost, and difficulty for operators to use, which reduces the detection effect of the cylindrical weld. Based on this, the present invention designs an expandable umbrella-shaped tool holder for non-destructive detection of large cylindrical structure welds to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a deployable umbrella-shaped tool holder for nondestructive testing of welds of large cylindrical structures, so as to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an expandable umbrella-shaped tool rack for non-destructive testing of welds of large cylindrical structures, comprising a cylinder body and a through hole, the through hole being integrally arranged at the upper left end of the cylinder body, a connecting ring being integrally arranged at the upper left end of the outer wall of the cylinder, and a connecting plate being arranged on the left side of the connecting ring, a tightener being connected to the outside of the connecting plate, a positioning assembly being arranged on the outer wall of the connecting plate, the positioning assembly comprising a hollow rod connected to the upper right end of the connecting plate, a positioning rod being connected to the lower right end of the connecting plate, a plurality of card slots being integrally arranged at the lower end of the hollow rod, and the card slots being connected by card-engaging with the positioning rod, a suspension assembly being arranged inside the hollow rod, the suspension assembly comprising a suspension line fixedly arranged inside the hollow rod, a shell being fixedly arranged at the bottom of the suspension line, and a plurality of sliders being slidably connected inside the shell.

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

[0007] Furthermore, a bolt is arranged inside the waist-shaped hole, and the bolt and the threaded hole are connected by threads for assembly and disassembly.

[0008] Furthermore, a plurality of limit buttons are arranged on the top of the shell, a plurality of limit slots are arranged integrally inside the sliding block, and a limit spring is arranged inside the limit button.

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

[0010] Furthermore, a plurality of rotating rods are connected inside the limiting device, and the rotating rods correspond to the sliding blocks one by one.

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

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

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

[0014] Furthermore, the number of the control wires is four, and the control wires and the suspension wires are staggered with each other.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention can adjust the suspension state of the suspension wire together with the shell and the slider inside the cylinder through the design of the positioning function, so as to control the suspension state of the shell and the slider inside the cylinder within the range required by the staff.

[0017] 2. The present invention is designed with an unfolding function, which allows the rotating rod to be moved from the stored state to the inside of the cylinder for unfolding, and then the unfolded rotating rod is in an umbrella shape, so that the contact sensor can determine whether the rotating rod is in contact with the edge of the opening at the bottom of the cylinder, thereby ensuring the accuracy of the subsequent detection of the weld inside the cylinder by the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a front view of a deployable umbrella-shaped tool holder for nondestructive testing of large cylindrical structure welds according to the present invention;

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

[0021] Figure 3 is a three-dimensional diagram of the connecting plate and the tightener;

[0022] Figure 4 The figure is an unfolded stereogram of the rotating rod;

[0023] Figure 5 A three-dimensional diagram of the storage of the rotating rod;

[0024] Figure 6 is a three-dimensional diagram of the housing and the slider;

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

[0026] In the accompanying drawings, the components represented by the reference numerals are listed 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-waist-shaped hole, 10-bolt, 11-limit button, 12-limit slot, 13-limit spring, 14-limit device, 15-detection device, 16-rotating rod, 17-control line, 18-contact sensor. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work 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 cylinder 1 and a through hole 2, the through hole 2 is integrally arranged at the upper left end of the cylinder 1, a connecting ring 3 is integrally arranged at the upper left end of the outer wall of the cylinder 1, and a connecting plate 4 is arranged on the left side of the connecting ring 3, a tightener 5 is connected to the outside of the connecting plate 4, a positioning assembly 6 is arranged on the outer wall of the connecting plate 4, the positioning assembly 6 includes a hollow rod 601 connected to the upper right end of the connecting plate 4, a positioning rod 602 is connected to the lower right end of the connecting plate 4, a plurality of card slots 603 are integrally arranged at the lower end of the hollow rod 601, and the card slots 603 are connected to the positioning rod 602 by card connection, a suspension assembly 7 is arranged inside the hollow rod 601, and the suspension assembly 7 includes a suspension line 701 fixedly arranged inside the hollow rod 601, a shell 702 is fixedly arranged at the bottom of the suspension line 701, and a plurality of sliders 703 are slidably connected inside the shell 702.

[0031] The staff first places the shell 702, the slider 703, the hollow rod 601 and the positioning rod 602 into the cylinder 1 through the through hole 2, so that the suspension line 701 suspends the shell 702 and the slider 703 to the lower end of the cylinder 1. In addition, the staff can rotate the hollow rod 601 to adjust the position of the suspension line 701 and the shell 702 suspended inside the cylinder 1 by the hollow rod 601, and the staff can 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, a plurality of threaded holes 8 are integrally provided inside the connecting ring 3, waist-shaped holes 9 are integrally provided at the upper and lower ends of the connecting plate 4, bolts 10 are provided inside the waist-shaped holes 9, and the bolts 10 and the threaded holes 8 are disassembled and assembled by threaded connection, a plurality of limit buttons 11 are provided on the top of the housing 702, a plurality of limit grooves 12 are integrally provided inside the slider 703, a limit spring 13 is provided inside the limit button 11, a limit device 14 is fixedly provided at the bottom of the housing 702, a detection device 15 is fixedly provided at the bottom of the limit device 14, and a plurality of limit devices 14 are connected inside the limit device 14. There are four rotating rods 16, and the rotating rods 16 and the sliders 703 correspond to each other one by one. A control line 17 is wound around the top of the rotating rod 16, and the control line 17 runs through the limit device 14 and the shell 702. The end of the control line 17 away from the rotating rod 16 is wound and connected with the tightener 5. The end of the rotating rod 16 away from the limit device 14 is fixed with a contact sensor 18, and the contact sensor 18 is connected to the detection device 15 through a wire. The number of sliders 703 and rotating rods 16 is four, and the angle between the sliders 703 is 90 degrees. There are four control lines 17, and the control lines 17 and the suspension lines 701 are staggered with each other.

[0034] According to the operation steps in Example 1, the staff can pre-press the limit button 11 to make the limit spring piece 13 disengage from the limit slot 12, and then adjust the length of the slider 703 extending out of the shell 702. After the adjustment is completed, the limit button 11 is released, and the limit spring piece 13 rebounds into the limit slot 12, thereby locking the displacement state of the slider 703. In addition, when the hollow rod 601 and the positioning rod 602 are moved to the inside of the through hole, the bolt 10 is connected to the threaded hole 8, thereby connecting the connecting ring 3 to the connecting ring. The plate 4 is connected as a whole. When the shell 702 drives the limit device 14 together with the rotating rod 16 and the detection device 15 to move to the lower end of the cylinder 1, the staff can rotate the tightener 5, so that the control line 17 controls the rotation of the rotating rod 16, and then unfolds the rotating rod 16 in the storage state to an umbrella shape. When the contact sensor 18 contacts the edge of the opening at the bottom end of the cylinder 1, the detection device 15 is positioned at the lower end of the cylinder 1, ensuring the accuracy of the subsequent non-destructive detection of the internal weld of the cylinder 1 by the detection device 15.

Claims

1. A deployable umbrella-shaped tool holder for nondestructive testing of welds of large cylindrical structures, comprising a cylinder (1) and a through hole (2), characterized in that: The through hole (2) is integrally arranged at the upper left end of the inner part of the cylinder (1); a connecting ring (3) is integrally arranged at the upper left end of the outer wall of the cylinder (1); a connecting plate (4) is arranged on the left side of the connecting ring (3); a tightener (5) is connected to the outside of the connecting plate (4); a positioning assembly (6) is arranged on the outer wall of the connecting plate (4); the positioning assembly (6) comprises a hollow rod (601) connected to the upper right end of the connecting plate (4); and a positioning rod (602) is connected to the lower right end of the connecting plate (4). The lower end of the hollow rod (601) is integrally provided with a plurality of slots (603), and the slots (603) are connected to the positioning rod (602) by snap-fitting. A suspension assembly (7) is provided inside the hollow rod (601), and the suspension assembly (7) includes a suspension line (701) fixed inside the hollow rod (601). A shell (702) is fixed at the bottom of the suspension line (701), and a plurality of sliders (703) are slidably connected inside the shell (702).

2. According to claim 1, a deployable umbrella-shaped tool holder for nondestructive testing of large cylindrical structure welds, characterized in that: The connection ring (3) is integrally provided with a plurality of threaded holes (8) inside, and waist-shaped holes (9) are integrally provided at the upper and lower ends inside the connection plate (4).

3. According to claim 2, a deployable umbrella-shaped tool holder for nondestructive testing of large cylindrical structure welds is characterized by: A bolt (10) is arranged inside the waist-shaped hole (9), and the bolt (10) and the threaded hole (8) are connected by threads for assembly and disassembly.

4. According to claim 1, a deployable umbrella-shaped tool holder for nondestructive testing of large cylindrical structure welds is characterized by: A plurality of limit buttons (11) are arranged on the top of the housing (702), a plurality of limit slots (12) are integrally arranged inside the slider (703), and a limit spring (13) is arranged inside the limit button (11).

5. According to claim 1, a deployable umbrella-shaped tool holder for nondestructive testing of large cylindrical structure welds is characterized by: A limiting device (14) is fixedly disposed at the bottom of the housing (702), and a detection device (15) is fixedly disposed at the bottom of the limiting device (14).

6. The deployable umbrella-shaped tool holder for nondestructive testing of large cylindrical structure welds according to claim 5, characterized in that: A plurality of rotating rods (16) are connected inside the limiting device (14), and the rotating rods (16) and the sliding blocks (703) correspond to each other one by one.

7. The deployable umbrella-shaped tool holder for nondestructive testing of large cylindrical structure welds according to claim 6, characterized in that: A control line (17) is wound around the top of the rotating rod (16), and the control line (17) passes through the limiting device (14) and the housing (702). One end of the control line (17) away from the rotating rod (16) is wound around and connected to the tightener (5).

8. The deployable umbrella-shaped tool holder for nondestructive testing of large cylindrical structure welds according to claim 7, characterized in that: A contact sensor (18) is fixedly provided 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) via a wire.

9. The deployable umbrella-shaped tool holder for nondestructive testing of large cylindrical structure welds according to claim 1, characterized in that: The number of the sliders (703) and the rotating rods (16) is four, and the angle between two of the sliders (703) is 90 degrees.

10. The deployable umbrella-shaped tool holder for nondestructive testing of large cylindrical structure welds according to claim 7, characterized in that: The number of the control lines (17) is four, and the control lines (17) and the suspension lines (701) are offset from each other.

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