A target plate detection device

Abstract

This utility model relates to the field of blowpipe testing technology, specifically to a target plate testing device, including a temporary pipe, a clamping mechanism, and a rectangular rod. Mounting seats are installed on both the upper and lower sides of the temporary pipe. A rotating shaft is rotatably mounted inside each of the two mounting seats. The rotating shaft in the upper mounting seat has a rectangular through groove inside, while the rotating shaft in the lower mounting seat has a rectangular slot on its upper surface. A cylinder is mounted on the outer surface of the temporary pipe. A top plate is mounted at the end of the cylinder's telescopic end. A connecting shaft is connected to the lower surface of the top plate, and a pressure block is rotatably mounted at the end of the connecting shaft. The rectangular rod is positioned below the pressure block. Target plates are mounted on the four outer surfaces of the rectangular rod. Two L-shaped plates are mounted inside the temporary pipe via the clamping mechanism. During blowpipe testing, the L-shaped plates can be quickly replaced, thereby reducing the complexity of the blowpipe testing operation and significantly improving testing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of blowpipe detection technology, specifically to a target plate detection device. Background Technology

[0002] In thermal power plant construction, the blowing of superheaters, reheaters, and steam pipelines is a crucial pre-commissioning inspection aimed at removing internal debris, preventing pipe bursts and damage during operation, and improving safety and economy. The evaluation standard relies on a smooth aluminum target plate mounted on a target plate device. Under the purging of steam inside the pipeline, the number and size of the marks left by impurities impacting the target plate are used as a standard to determine whether the internal conditions of the pipeline are up to standard.

[0003] During blowpipe testing, the target plate needs to be replaced multiple times. However, the target plate is usually fixed in the temporary pipe with bolts, which makes the replacement of the target plate cumbersome and time-consuming. Moreover, during the replacement of the target plate, even if the steam valve is strictly closed, a certain amount of high-temperature steam will still remain in the temporary pipe, which increases the risk of operators suffering high-temperature burns when replacing the target plate. Utility Model Content

[0004] The present invention aims to solve the problems mentioned in the background art by providing a target plate detection device.

[0005] The specific technical solution is as follows: A target plate detection device includes: a temporary conduit, a clamping mechanism, and a rectangular rod; The temporary pipe is equipped with mounting seats on both the upper and lower sides. Each of the two mounting seats has a rotating shaft rotatably installed inside. The rotating shaft in the upper mounting seat has a rectangular through groove inside, and the rotating shaft in the lower mounting seat has a rectangular slot on its upper surface. A cylinder is installed on the outer surface of the temporary pipe. A top plate is installed at the end of the cylinder's telescopic end. A connecting shaft is connected to the lower surface of the top plate. A pressure block is rotatably installed at the end of the connecting shaft. A rectangular rod is positioned below the pressure block. Target plates are provided on the four outer surfaces of the rectangular rod. Two L-shaped plates are installed inside the temporary pipe through a clamping mechanism. The clamping mechanism includes a threaded rod with a pair of reverse threads rotatably installed inside the temporary pipe. Nut seats are installed on both reverse threads of the threaded rod, and the ends of the two nut seats are respectively connected to two L-shaped plates. Two parallel limiting rods are installed inside the temporary pipe. Two limiting blocks are slidably installed on the outer surface of the limiting rods, and the ends of the two limiting blocks are respectively connected to two L-shaped plates.

[0006] Furthermore, the mounting base has four positioning screw holes arranged in a coaxial array on its surface, and the outer surface of the rotating shaft is fitted with a first bolt that matches the positioning screw holes.

[0007] Furthermore, the end of the threaded rod extends to the outside of the temporary pipe and is fitted with a knob, the outer surface of which is provided with anti-slip protrusions.

[0008] Furthermore, the target plate is connected to the rectangular rod by screws, and the rectangular rod is connected to the pressure block by a second bolt.

[0009] Furthermore, there are two cylinders, which are symmetrically arranged on both sides of the temporary pipe.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention, through the design of a rectangular rod, allows four target plates to be mounted simultaneously on its surface. Furthermore, because the rotating shaft is installed within the mounting base, the rectangular rod has the ability to rotate. Therefore, during the blowpipe inspection process, the L-shaped plate can be quickly replaced simply by rotating the rectangular rod 90 degrees in sequence, thereby reducing the complexity of the blowpipe inspection operation and significantly improving the inspection efficiency.

[0011] This invention, through the setting of the clamping mechanism, can move the two L-shaped plates closer or further apart, so that they can shield and protect the other three target plates during the blowpipe testing process, preventing them from being impacted by impurities and leaving marks, thus ensuring the accuracy of the test results. Attached Figure Description

[0012] Figure 1 A schematic diagram of the overall structure of the target plate detection device provided by this utility model; Figure 2 A schematic diagram of the connection relationship of a part of the target plate detection device provided by this utility model; Figure 3 A schematic diagram of the clamping mechanism in the target plate detection device provided by this utility model; Figure 4 A schematic diagram of the rectangular rod in the target plate detection device provided by this utility model; Figure 5 This utility model Figure 3 An enlarged diagram of A in the diagram.

[0013] In the diagram: 100-Temporary pipe, 101-Mounting base, 102-Rotating shaft, 103-Rectangular through groove, 104-Rectangular slot, 105-Cylinder, 106-Top plate, 107-Connecting shaft, 108-Pressure block, 109-Rectangular rod, 110-Target plate, 111-L-shaped plate, 200-Clamping mechanism, 201-Threaded rod, 202-Nut seat, 203-Limiting rod, 204-Limiting block, 300-Positioning screw hole, 301-First bolt, 400-Knob, 500-Second bolt. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. 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 scope of protection of the present utility model. In the description of the embodiments of the present utility model, unless otherwise stated, " / " means "or", for example, A / B can mean A or B; "and / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. In addition, in the description of the embodiments of the present utility model, "multiple" means two or more. Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of this utility model, unless otherwise stated, "multiple" means two or more.

[0015] like Figures 1-5 As shown, the target plate detection device provided by this utility model includes a temporary pipe 100 and a rectangular rod 109. Mounting seats 101 are installed on both the upper and lower sides of the temporary pipe 100. A rotating shaft 102 is rotatably mounted inside the mounting seat 101. A rectangular through groove 103 is formed inside the upper rotating shaft 102, and a rectangular slot 104 is formed on the upper surface of the lower rotating shaft 102. A cylinder 105 is installed on the outer surface of the temporary pipe 100. A top plate 106 is installed at the end of the telescopic end of the cylinder 105. A connecting shaft 107 is connected to the lower surface of the top plate 106. A pressure block 108 is rotatably mounted at the end of the connecting shaft 107, and the rectangular rod 109 is positioned below the pressure block 108. Target plates 110 are provided on all four outer surfaces of the rectangular rod 109. Two L-shaped plates 111 are installed inside the temporary pipe 100 via a clamping mechanism 200.

[0016] The specific operation process of this utility model will be described in detail below with reference to the accompanying drawings: In use, first install the four target plates 110 on the four sides of the rectangular rod 109. Then install the rectangular rod 109 below the pressure block 108. Next, adjust the angles of the upper and lower rotating shafts 102 so that the rectangular through groove 103 and the rectangular slot 104 are at the same angle. Then, start the cylinder 105 to drive the top plate 106 down and insert the end of the rectangular rod 109 into the rectangular slot 104. At this time, the blowpipe test can be performed. When it is necessary to replace the target plate 110, first use the clamping mechanism 200 to move the two L-shaped plates 111 away to provide room for the rotation of the rectangular rod 109. Then, rotate the rotating shaft 102 90 degrees so that the other target plate 110 faces the direction of steam flow. Then, use the clamping mechanism 200 to move the two L-shaped plates 111 closer to each other and combine them into a U-shape to wrap around the outside of the other three target plates 110, protecting them from the impact of impurities and leaving marks, thus ensuring the accuracy of the test results. After the blowpipe test is completed, start the cylinder 105 again. The cylinder 105 pulls the rectangular rod 109 out of the temporary pipe 100. The operator can then observe and record the data of the four target plates 110. It is worth noting that a rotary seal (not shown in the figure) is provided between the mounting base 101 and the rotating shaft 102, which can prevent steam leakage while ensuring the rotation of the rotating shaft 102. The size of the rectangular slot 104 matches the size of the rectangular rod 109, which can provide stable support for the rectangular rod 109. The size of the rectangular through groove 103 is larger than that of the rectangular slot 104 and matches the size of the target plate 110 mounted on the rectangular rod 109. When the end of the rectangular rod 109 is inserted into the rectangular slot 104, there is a gap between the rectangular through groove 103 and the rectangular rod 109. Therefore, a sealing ring (not shown in the figure) can be provided on the upper surface of the upper rotating shaft 102. When the pressure block 108 is pressed against the upper rotating shaft 102 by the cylinder 105, the sealing ring between the two can play a sealing role and prevent steam leakage.

[0017] Specifically, the clamping mechanism 200 includes a threaded rod 201 with a pair of reverse threads rotatably installed inside the temporary pipe 100. Nut seats 202 are installed on both reverse threads of the threaded rod 201, and the ends of the two nut seats 202 are respectively connected to two L-shaped plates 111. Two parallel limiting rods 203 are installed inside the temporary pipe 100. Two limiting blocks 204 are slidably installed on the outer surface of the limiting rods 203, and the ends of the two limiting blocks 204 are respectively connected to the two L-shaped plates 111. Since the two L-shaped plates 111 are limited by the limiting rods 203 and the limiting blocks 204, when the threaded rod 201 is rotated, the reverse threads can drive the two nut seats 202 to move closer or further apart, thereby achieving the purpose of moving the L-shaped plates 111.

[0018] Specifically, the mounting base 101 has four positioning screw holes 300 arranged in a coaxial array on its surface. The outer surface of the rotating shaft 102 is fitted with a first bolt 301 that matches the positioning screw holes 300. The four positioning screw holes 300 are arranged in a coaxial array such that the included angle between two adjacent positioning screw holes 300 is 90 degrees. Therefore, the rotating shaft 102 can be fixed at a certain angle, ensuring that when the rectangular rod 109 is installed, the end of the rectangular rod 109 can be accurately inserted into the rectangular slot 104, and the rectangular rod 109 can be accurately rotated 90 degrees and fixed.

[0019] Specifically, the end of the threaded rod 201 extends to the outside of the temporary pipe 100 and is fitted with a knob 400. The outer surface of the knob 400 is provided with anti-slip protrusions. By turning the knob 400, the threaded rod 201 can be rotated. Due to the anti-slip protrusions, the friction between the knob and the hand can be increased, reducing the chance of slipping. It is worth noting that a rotary seal (not shown in the figure) is provided between the threaded rod 201 and the temporary pipe 100, which can play a sealing role and prevent steam leakage.

[0020] Specifically, the target plate 110 is connected to the rectangular rod 109 by screws, and the rectangular rod 109 is connected to the pressure block 108 by the second bolt 500, which enables the target plate 110 and the rectangular rod 109 to be installed and removed.

[0021] Specifically, there are two cylinders 105, and the two cylinders 105 are symmetrically arranged on both sides of the temporary pipe 100. The arrangement of the two cylinders 105 makes the structure of the top plate 106 more stable, ensuring that it can drive the rectangular rod 109 to rise and fall smoothly.

[0022] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A target plate detection device, characterized in that, include: Temporary pipes, clamping mechanisms, and rectangular bars; The temporary pipe is equipped with mounting seats on both the upper and lower sides. Each of the two mounting seats has a rotating shaft rotatably installed inside. The rotating shaft in the upper mounting seat has a rectangular through groove inside, and the rotating shaft in the lower mounting seat has a rectangular slot on its upper surface. A cylinder is installed on the outer surface of the temporary pipe. A top plate is installed at the end of the cylinder's telescopic end. A connecting shaft is connected to the lower surface of the top plate. A pressure block is rotatably installed at the end of the connecting shaft. A rectangular rod is positioned below the pressure block. Target plates are provided on the four outer surfaces of the rectangular rod. Two L-shaped plates are installed inside the temporary pipe through a clamping mechanism. The clamping mechanism includes a threaded rod with a pair of reverse threads rotatably installed inside the temporary pipe. Nut seats are installed on both reverse threads of the threaded rod, and the ends of the two nut seats are respectively connected to two L-shaped plates. Two parallel limiting rods are installed inside the temporary pipe. Two limiting blocks are slidably installed on the outer surface of the limiting rods, and the ends of the two limiting blocks are respectively connected to two L-shaped plates.

2. The target plate detection device according to claim 1, characterized in that, The mounting base has four positioning screw holes arranged in a coaxial array on its surface, and the outer surface of the rotating shaft is fitted with a first bolt that matches the positioning screw holes.

3. The target plate detection device according to claim 1, characterized in that, The end of the threaded rod extends through to the outside of the temporary pipe and is fitted with a knob. The outer surface of the knob is provided with anti-slip protrusions.

4. The target plate detection device according to claim 1, characterized in that, The target plate is connected to the rectangular rod by screws, and the rectangular rod is connected to the pressure block by a second bolt.

5. The target plate detection device according to claim 1, characterized in that, There are two cylinders, and the two cylinders are symmetrically arranged on both sides of the temporary pipeline.

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