Surface deformation detection device for special equipment

Abstract

The application provides a surface deformation detection device for special equipment, which comprises an ejection unit and a guide unit. The ejection unit is a bin body, through holes of mounting grooves are symmetrically arranged in the bin body, telescopic probes are embedded in the mounting grooves, the guide unit is internally provided with limit passages which are symmetrically arranged and correspond to the mounting grooves one by one, an elastic component is arranged at the tail end of the telescopic probe, the head end of the telescopic probe can extend out of the mounting groove and extend into the limit passage, and a displacement sensor is arranged in the limit passage. The application has the advantages of simple operation, high measurement accuracy and quantitative detection.

Description

Technical Field

[0001] The present invention relates to the technical field of special equipment detection, and in particular to a surface deformation detection device for special equipment. Background Art

[0002] During special equipment inspections, it's often necessary to assess the surface deformation of various pressure vessels. Currently, the most common method is visual inspection, but it's difficult to quantify the precise size and fluctuations of the deformed area. Spatial scanning equipment is not only expensive to purchase, but also bulky, difficult to carry, and lacks mobility. Furthermore, many pressure vessels are covered with insulation, and conventional inspection methods require the complete removal of the insulation from the inspected area, which is not only highly destructive but also inefficient.

[0003] Therefore, it is necessary to invent a surface deformation detection system for special equipment with low operating difficulty and high measurement accuracy. Summary of the Invention

[0004] The purpose of the present invention is to provide a surface deformation detection device for special equipment which has the advantages of simple operation, high measurement accuracy and quantitative detection.

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

[0006] A surface deformation detection device for special equipment includes an ejection unit and a guide unit. The ejection unit is a compartment body with centrally symmetrically distributed mounting grooves provided therethrough. Telescopic probes are embedded in the mounting grooves. The guide unit has built-in centrally symmetrically distributed limiting channels, which correspond one-to-one to the distribution of the limiting channels and the mounting grooves. An elastic component is provided at the tail end of the telescopic probe, and the head end of the telescopic probe can extend out of the mounting groove and into the limiting channel. A displacement sensor is provided in the limiting channel.

[0007] Furthermore, a baffle is provided between the ejection unit and the guide unit, and the baffle is penetrated by through holes that are centrally symmetrically distributed. The through holes, the mounting grooves, and the limiting channels are distributed in a one-to-one correspondence, and the baffle is rotatable.

[0008] Furthermore, a toggle plate is provided on the side of the baffle, and a buckle groove is provided on the surface of the toggle plate along the radial direction of the rotation track.

[0009] Furthermore, a sleeve is provided at one end of the limiting channel away from the ejection unit, and the sleeve is conical.

[0010] Furthermore, the elastic component includes a first pressure plate, a second pressure plate, an elastic member and a rod. The elastic member is arranged between the first pressure plate and the second pressure plate. The telescopic probe is connected to the second pressure plate. The rod is connected to the first pressure plate. The side of the rod is screwed to the warehouse body and can extend out of the warehouse body. The rod can be telescopically controlled.

[0011] Further, a positioning block is embedded at the opening where the rod member extends outside the barrel, the positioning block is a non-rotating body, a clamping hole penetrating through the positioning block is matched and fixed with the rod member in an elliptical section.

[0012] Further, the telescopic probe is provided with a rib along the length direction of the probe, the rib is symmetrically distributed around the central axis, the rib comprises a straight bar-shaped embedded part and a snake-shaped bar-shaped extrusion part which are integrated, and the embedded part is close to the direction of the container to be measured; the head end of the telescopic probe is in a dome shape.

[0013] Further, the guiding unit is connected with a seat body at the lower side, the seat body is supported on a triangular support, and the triangular support can be adjusted in angle.

[0014] Further, the triangular support comprises a first support, a second support and a third support, one end of the first support is connected with the seat body, the other end of the first support is hingedly connected with the second support, the other end of the second support is hingedly connected with the third support, the other end of the third support is provided with an elastic plate, and the elastic plate can be embedded and inserted into the clamping hole arranged in the first support.

[0015] Further, the triangular support can be folded.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] The surface deformation detection device for special equipment is simple to operate and high in measurement accuracy, the cooperation of the telescopic probe of the ejection unit and the displacement sensor of the guiding unit can obtain the overall profile fluctuation of the measured part of the container, and the spatial curved surface model can be generated in the modeling software according to the data points, so that the detection is quantized, which is beneficial to subsequent risk judgment and related production safety research. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a cooperation schematic view of the guiding unit and the ejection unit of the present application.

[0019] Figure 2 is a schematic view of the installation position of the baffle of the present application.

[0020] Figure 3 is a schematic view of the partial structure of the elastic assembly of the present application.

[0021] Figure 4 is a schematic view of the working principle of the present application.

[0022] Figure 5 is a schematic view of the overall structure of the elastic assembly of the present application.

[0023] Figure 6 is a schematic view of the partial structure of the ejection unit of the present application.

[0024] Figure 7 It is a schematic diagram of the overall structure of the frame of the present invention.

[0025] Figure 8 It is a structural schematic diagram of the supporting component of the present invention.

[0026] Figure 9 It is a schematic diagram of the pressing plate structure of the present invention.

[0027] Figure 10 It is a schematic structural diagram of the telescopic probe of the present invention. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

[0029] like Figure 1-4 As shown, the surface deformation detection device for special equipment of the present invention includes a guide unit 1 and an ejection unit 2. The ejection unit 2 is a compartment body 22. The compartment body 22 is provided with mounting grooves 24 that are centrally symmetrically distributed. A telescopic probe 21 is embedded in the mounting groove 24. The guide unit 1 includes a built-in limiting channel 11 that is centrally symmetrically distributed. The limiting channel 11 corresponds one-to-one with the distribution of the mounting grooves 24. The head end of the telescopic probe 21 can extend out of the mounting groove 24 and into the limiting channel 11. A displacement sensor 12 is provided inside the limiting channel 11. The telescopic path of the telescopic probe 21 is sensed by the displacement sensor 12. The displacement sensor 12 can reflect the extension amount of the telescopic probe 21 by monitoring the moving distance of the telescopic probe 21. Its detection principle is similar to that of an electronic vernier caliper. The displacement sensor 12 can be purchased directly from the Internet, and its matching signal conversion module and other equipment can also be purchased simultaneously, which will not be described in detail here.

[0030] like Figure 4 As shown, the tip of the telescopic probe 21 penetrates the insulation layer 8 and contacts the outer wall of the container 9. By measuring and statistically analyzing the length changes of the telescopic probe 21 at different positions, based on the respective initial installation positions of the telescopic probe 21 in the ejection unit 2, the overall contour fluctuations of the measured part of the container can be obtained, and a spatial surface model can be generated in the modeling software based on the data points, thereby quantifying the detection, which is beneficial to subsequent risk judgment and related production safety research.

[0031] The sleeve 13 is hollow and conical, the cross-sectional area of the sleeve 13 gradually decreases along the direction away from the limiting channel 11, the telescopic probe 21 passes through the limiting channel 11 and the sleeve 13 in sequence and extends to the outside of the guide unit 1. The conical design of the sleeve 13 can first embed into the thermal insulation layer 8 when the container 9 has the thermal insulation layer 8, thereby reducing the initial resistance when the telescopic probe 21 is embedded, and the sleeve 13 can also protect the telescopic probe 21 from being worn by the friction of the surrounding area of the outlet end of the limiting channel 11 when the telescopic probe 21 is subjected to bending force, thereby improving the working life and stability of the telescopic probe 21 during measurement.

[0032] The guide unit 1 and the guide unit 2 can be connected by welding, flange screwing and other ways, as long as the internal channels of the guide unit 2 and the guide unit 1 do not affect the telescopic movement of the telescopic probe 21. A baffle 23 is arranged between the guide unit 2 and the guide unit 1, the baffle 23 is rotationally arranged at the opening of the mounting groove 24 which is centrally and symmetrically distributed. The baffle 23 is provided with a through hole 231 which is centrally and symmetrically distributed, the through hole 231, the mounting groove 24 and the limiting channel 11 are one-to-one corresponding, and the opening of the through hole 231 and the mounting groove 24 can be alternately corresponding or staggered by rotating and adjusting the baffle 23, thereby controlling the communication and closure of the mounting groove 24 and the limiting channel 11. When the detection device is used, the telescopic probe 21 can be limited in the mounting groove 24, and the telescopic probe 21 can be released by rotating the baffle 23 when measurement is needed. The baffle 23 is provided with a toggle piece 233 which extends outward from the edge, and the surface of the toggle piece 233 is provided with a buckle groove along the radial direction of the rotation track, thereby facilitating the operator to pinch and drive the baffle 23 to rotate.

[0033] As shown in Figure 5 The mounting groove 24 is provided with an elastic assembly 25 at the bottom, and the elastic assembly 25 is connected to the tail end of the telescopic probe 21. The elastic assembly 25 includes a first pressing plate 251, a second pressing plate 252 and an elastic member 253, the elastic member 253 is clamped and connected between the first pressing plate 251 and the second pressing plate 252, the side of the second pressing plate 252 away from the elastic member 253 is connected to the telescopic probe 21, and the side of the first pressing plate 251 away from the elastic member 253 is provided with a rod 254, the rod 254 extends to the outside through the barrel 22. The rod 254 is rotationally connected with the first pressing plate 251 and can freely rotate, the surface of the rod 254 is threadedly connected with the surrounding barrel 22, and the position of the first pressing plate 251 can be controlled by the telescopic movement of the rod 254 by rotating the rod 254, thereby adjusting the pressure degree of the elastic member 253, and the size and effect of the thrust force acting on the telescopic probe 21 are adjusted correspondingly.

[0034] As shown in Figure 6As shown, a data transmission element 229 is provided on the surface of the housing 22, and a wiring harness is used to derive the data of each displacement sensor 12. The data transmission element 229 and the wiring harness are supporting equipment when purchasing the displacement sensor, and are not described in detail here.

[0035] like Figure 3 As shown, the surface of the housing 22 in the direction in which the rod 254 extends from the housing 22 is provided with a groove 221. The groove 221 is non-rotating, and a positioning block 222 is embedded in the groove 221. The positioning block 222 is provided with a retaining hole 223 extending therethrough. The cross-section of the end of the rod 254 away from the first pressure plate 251 is elliptical, and the retaining hole 223 cooperates with the rod 254. Because the groove 221 is non-rotating, the positioning block 222 is stable within the groove 221. The elliptical cross-section of the rod 254 cooperates with the retaining hole 223, thereby limiting the rotational freedom of the rod 254 with the help of the positioning block 222. When the thrust of the elastic assembly 25 needs to be adjusted, the positioning block 222 can be removed first, and then the rod 254 can be rotated to achieve telescopic adjustment via the thread. After the adjustment is completed, the positioning block 222 can be replaced in the groove 221.

[0036] like Figure 10 As shown, the surface of the telescopic probe 21 is provided with ribs 26 along its length. Several ribs 26 are symmetrically distributed about the central axis of the telescopic probe 21. The function of the ribs is to expand the insulation material pressing against the telescopic probe 21 after it is embedded in the insulation layer 8, thereby preventing the insulation layer 8 from tightly wrapping around it and causing a significant increase in friction. The ribs 26 include an insert 261 and an extrusion member 262. The insert 261 and the extrusion member 262 are connected along the length of the rib 26. The insert 261 is located at the end of the telescopic probe 21 closest to the container to be tested. The insert 261 is a straight strip structure, with the thickness of the insert 261 gradually decreasing as it approaches the container to be tested; the extrusion member 262 is a serpentine strip structure. The straight insert 261 fully applies thrust to the insulation layer 8 during the initial insertion phase, ensuring smooth penetration of the telescopic probe 21. The extrusion member 262, by expanding in the width direction, avoids the problem of excessive contact between the completely straight ribs and the insulation material, further reducing insertion resistance. Furthermore, the domed tip of the telescopic probe 21 prevents excessive friction with the surface of the container 9, enhancing durability.

[0037] like Figure 7As shown, the guiding unit 1 is connected with a seat body 161 on the lower side, the seat body 161 is supported on the frame body 16, the frame body 16 includes a first support 17, a second support 18 and a third support 19, the bottom of the seat body 161 is connected with the top of the first support 17, the first support 17 is hinged with the second support 18 and the hinged part is in contact with the measurement site, the second support 18 is hinged with the third support 19 and the hinged part is in contact with the measurement site. A plurality of clamping holes 171 are arranged along the length direction of the first support 17, an elastic plate 191 is arranged at the end of the third support 19 away from the second support 18, the elastic plate 191 is embedded and inserted with the clamping hole 171, thereby, the first support 17, the second support 18 and the third support 19 form a stable structure like a triangle, which can provide stable support for the seat body 161 and the guiding unit 1 and the ejection unit 2 above. Adjusting the elastic plate 191 to cooperate with different clamping holes 171 changes the shape of the above-mentioned triangle structure, which corresponds to change the pitch attitude of the seat body 161, thereby improving the working environment adaptability of the detection system.

[0038] The first support 17 is provided with a bearing assembly 172 on both sides of the end away from the seat body 161, the bearing assembly 172 is in contact with the ground of the detection site. Figure 8 As shown, the bearing assembly 172 includes an extension rod 173, a sleeve rod 174 and an adjusting rod 175, both ends of the extension rod 173 are connected with the first support 17 and the sleeve rod 174 respectively, the end of the sleeve rod 174 away from the extension rod 173 is provided with a clamping groove 179. The adjusting rod 175 includes a clamping column 176 and a bearing column 177 connected with each other, the clamping column 176 is nested with the clamping groove 179, the bearing column 177 is an elliptical column structure, the cross section of the clamping column 176 is a polygon, and the clamping column 176 is rotated and adjusted, which corresponds to change the lifting height of the bearing column 177 relative to the first support 17. The clamping column 176 with a polygonal cross section is used to cooperate with the sleeve rod 174, which has the advantage that the target rotation angle can be quickly determined according to the rotation of the polygon in operation, and the angle change accuracy of single adjustment is 360° divided by the number of sides of the polygon cross section. The bearing column 177 with an elliptical cross section is used to cooperate with the clamping column 176, because the rotation axis height of the bearing column 177 is fixed, so at different angles, if the long side of the elliptical cross section corresponds to the side in contact with the ground, then the height of the bearing column 177 is relatively large at this time, if the short side of the elliptical cross section corresponds to the side in contact with the ground, then the height of the bearing column 177 is relatively small at this time. By using this way of fast disassembly and fast assembly to adjust the support height, the height of the bearing assembly 172 on one side of the frame body 16 can be conveniently and quickly adjusted, so that the detection system can be well adapted to the situation that the flatness of the test site is poor, and the environmental adaptability of the detection system is further improved.

[0039] The second bracket 18 includes a pair of bending rods 181 disposed on either side of the third bracket 19. The ends of the bending rods 181 facing away from the third bracket 19 are hingedly engaged with the extension rods 173 on the corresponding side of the first bracket 17. The rotation radius of the first bracket 17 about the corresponding hinge position is smaller than the distance between the hinge positions at both ends of the second bracket 18. Therefore, the first bracket 17 can be freely rotated about the second bracket 18. This facilitates folding the first, second, and third brackets 17, 18, and 19 when not being tested, thereby reducing the footprint of the bracket 16 and improving its portability.

[0040] like Figure 9 As shown, a support rod 182 is provided at one end of the bending rod 181 hinged to the third bracket 19, and a pressure plate 183 is hinged at the end of the support rod 182. The pressure plate 183 can adjust the tilt angle by its own relative rotation to fit the measurement site. The pressure plate 183 is provided with a socket 184, and a pin 185 is embedded in the socket 184. The pin 185 is embedded in the ground of the soft site to easily improve the stability of the frame. At the same time, an anti-slip rubber pad can also be provided on the surface of the pressure plate 183 to increase friction with the ground of the hard site, which can also achieve the effect of improving the stability of the frame.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the concept of the present invention. These improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A surface deformation detection device for special equipment, characterized in that: The ejection unit comprises an ejection unit and a guide unit. The ejection unit is a chamber body, and a centrally symmetrically distributed mounting groove is provided through the chamber body. A telescopic probe is embedded in the mounting groove. The guide unit has a built-in centrally symmetrically distributed limiting channel. The limiting channel corresponds to the distribution of the mounting groove one by one. An elastic component is provided at the tail end of the telescopic probe, and the head end of the telescopic probe can extend out of the mounting groove and into the limiting channel; a displacement sensor is provided in the limiting channel. A sleeve is provided at one end of the limiting channel away from the ejection unit, and the sleeve is conical; The elastic component includes a first pressure plate, a second pressure plate, an elastic member and a rod. The elastic member is arranged between the first pressure plate and the second pressure plate. The telescopic probe is connected to the second pressure plate. The rod is connected to the first pressure plate. The side of the rod is screwed to the warehouse body and can extend out of the warehouse body. The rod can be telescopically controlled.

2. The surface deformation detection device for special equipment according to claim 1, characterized in that: A positioning block is embedded in the opening where the rod extends out of the bin body. The positioning block is a non-rotating body. A clamping hole provided through the positioning block is matched and fixed with the rod with an elliptical cross section.

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