Ship anticorrosive coating detection device

By setting up a mounting sleeve and rubber cover at the bottom of the probe head, the problem of wear and low measurement accuracy of the probe head is solved, and the protection and measurement accuracy of the probe head is improved, reducing equipment maintenance costs.

CN120403528APending Publication Date: 2025-08-01CHINA STATE SHIPBUILDING CORP LTD RESEARCH INSTITUTE 719
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Patent Information

Application Number
CN202510626608.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-15
Publication Date
2025-08-01

AI Technical Summary

Technical Problem

The probe head of the traditional coating thickness gauge is prone to wear during use, and the accuracy is not high when measuring uneven surfaces. The existing protective measures are inconvenient to operate, which cannot meet the needs of ship anti-corrosion coating inspection.

Method used

Set up a mounting sleeve at the bottom of the probe head, and use limiting clips and rubber covers for protection to avoid direct contact between the probe head and the workpiece. Design a metal gasket to measure without removing the installation sleeve. The rubber cover covers the probe head when it is idle to prevent scratches.

Benefits of technology

Effectively protect the probe head, improve measurement accuracy, extend service life, reduce maintenance costs, and improve operational convenience.

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Abstract

The invention relates to the technical field of coating thickness gauges, in particular to a ship anti-corrosion coating detection device which comprises a coating thickness gauge used for detecting the thickness of a ship anti-corrosion coating, a detection head is fixed to the bottom end of the coating thickness gauge, the bottom end of the detection head is sleeved with an installation sleeve, the top end of the installation sleeve is in threaded connection with a hand-screwed screw, and the hand-screwed screw is in threaded connection with the hand-screwed screw. The hand screw penetrates through the mounting sleeve and then clamps the detection head, and a metal gasket is fixed at the bottom end of the mounting sleeve; the beneficial effects are that the bottom end of the detection head is sleeved with the mounting sleeve, and the limiting clamping pieces (the clamping groove, the leading-in ring and the rubber clamping ring) are used for carrying out anti-falling limiting on the mounting sleeve, so that pre-limiting of the mounting sleeve at the bottom of the detection head is realized. And the metal gasket is fixed at the bottom end of the mounting sleeve, so that the metal gasket can be directly cushioned on a ship workpiece to be detected for measurement under the condition that the mounting sleeve is not disassembled. By means of the design, the bottom face of the detection head is effectively protected, and direct contact and friction between the detection head and the ship workpiece are avoided.
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Description

Technical Field

[0001] The present invention relates to the technical field of coating thickness gauges, and particularly to a ship anti-corrosion coating detection device. Background Art

[0002] In the field of ship manufacturing and maintenance, the quality inspection of anti-corrosion coatings is of crucial importance, which is directly related to the service life and safety of ships. As a commonly used detection tool, a coating thickness gauge is widely used to measure the thickness of ship anti-corrosion coatings to ensure that the coatings meet the design requirements and achieve good anti-corrosion effects.

[0003] However, there are some problems that need to be solved urgently in the use of traditional coating thickness gauges. On the one hand, as a key component of the coating thickness gauge, the bottom surface of the probe head is prone to wear during long-term use. Due to the complex ship detection environment, when the probe head comes into contact with ship workpieces for detection, it will inevitably rub against various rough surfaces, resulting in scratches, wear, etc. on the bottom surface of the probe head. This will not only affect the measurement accuracy of the probe head, reduce the accuracy of detection data, but also may shorten the service life of the probe head and increase the equipment maintenance cost.

[0004] On the other hand, in some scenarios where special surfaces are measured or higher measurement accuracy is required, the direct contact method between the probe head of the traditional coating thickness gauge and the workpiece has certain limitations. For example, when the detection surface is uneven or has tiny particles, the contact between the probe head and the workpiece is unstable, which may lead to measurement errors. At the same time, when in the idle state, the probe head is exposed and vulnerable to being scratched by external objects, further increasing the risk of damage to the probe head.

[0005] In addition, although some coating thickness gauges on the market currently have certain protection measures, these protection measures often have problems such as inconvenient operation and poor protection effects, and cannot meet the needs of actual detection work. Therefore, it is of great practical significance to develop a ship anti-corrosion coating detection device that can effectively protect the probe head, improve the measurement accuracy and operation convenience. Summary of the Invention

[0006] The purpose of the present invention is to provide a ship anti-corrosion coating detection device to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: A ship anti-corrosion coating detection device, including a coating thickness gauge for detecting the thickness of the ship anti-corrosion coating. A detection head is fixed at the bottom end of the coating thickness gauge. An installation sleeve is sleeved at the bottom end of the detection head. A hand-tightening screw is screwed at the top end of the installation sleeve. The hand-tightening screw passes through the installation sleeve and clamps the detection head. A metal gasket is fixed at the bottom end of the installation sleeve. A storage groove and a notch are respectively formed on both sides of the installation sleeve. A rubber cover is fixed inside the storage groove. After the rubber cover is unfolded, it covers the notch of the detection head, and one end of the rubber cover is limited in the notch.

[0008] Preferably, a fitting groove is formed at the bottom end of the detection head. The fitting groove is an annular groove. The installation sleeve is sleeved in the fitting groove. A limiting and locking member is provided between the installation sleeve and the fitting groove to prevent the installation sleeve from being disengaged and limit its position.

[0009] Preferably, the limiting and locking member includes a clamping groove, a guiding ring, and a rubber clamping ring. The clamping groove is formed on the top surface of the fitting groove. The clamping groove is an annular groove with a circular opening at the break. The guiding ring is fixed on the top surface of the installation sleeve. A rubber clamping ring is sleeved and fixed at the top end of the guiding ring. The rubber clamping ring is a ring structure with a circular cross-section. After the guiding ring is inserted into the clamping groove, the rubber clamping ring is clamped in the clamping groove.

[0010] Preferably, an outer ring groove is formed on the outer ring surface at the top end of the installation sleeve. An inner ring groove is formed on the inner ring surface at the top end of the installation sleeve. A plurality of screw holes are formed on the outer ring surface of the inner ring groove. The hand-tightening screw corresponds to the screw hole one by one, and the hand-tightening screw is screwed in the screw hole.

[0011] Preferably, a rubber belt is fixed between the top surface and the bottom surface of the inner ring groove. The hand-tightening screw tensions the rubber belt and presses it against the surface of the fitting groove.

[0012] Preferably, both the storage groove and the notch are arc grooves. The arcs of the storage groove and the notch are equal. The height of the storage groove is greater than the height of the notch. The storage groove and the notch are symmetrically distributed with respect to the installation sleeve.

[0013] Preferably, a first magic male fastener and a second magic male fastener are respectively fixed on both sides at one end of the rubber cover. A first magic female fastener is fixed on the surface of the storage groove. After the rubber cover is folded and inserted into the storage groove, the first magic female fastener and the first magic male fastener are cooperatively connected.

[0014] Preferably, a second magic female fastener is fixed inside the notch. After the rubber cover is unfolded to cover the notch of the detection head and one end of the rubber cover is inserted into the notch, the second magic male fastener and the second magic female fastener are cooperatively connected at this time.

[0015] Preferably, a picking groove is formed at one end of the storage groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are: The ship anti-corrosion coating detection device proposed by the present invention realizes the preliminary limit of the mounting sleeve at the bottom of the detection head by sleeving a mounting sleeve at the bottom end of the detection head and using a limit clamping member (a clamping groove, a guiding ring, and a rubber clamping ring) to prevent the mounting sleeve from falling off. A metal gasket is fixed at the bottom end of the mounting sleeve. Without disassembling the mounting sleeve, the metal gasket can be directly placed on the ship workpiece to be detected for measurement. This design effectively protects the bottom surface of the detection head, avoids direct contact and friction between the detection head and the ship workpiece, thereby greatly reducing the risk of wear on the bottom surface of the detection head, ensuring the measurement accuracy and service life of the detection head, and reducing the equipment maintenance cost.

[0017] Receiving grooves and notches are respectively formed on both sides of the mounting sleeve, and a rubber cover is fixed inside the receiving groove. When the coating thickness gauge is idle, the rubber cover can be unfolded to cover the notch of the detection head, and through the cooperation of the magic male sticker two and the magic female sticker two, one end of the rubber cover is limited in the notch, thereby playing an effective protective role for the detection head, avoiding the probe of the detection head from being scratched by external objects, and protecting the integrity of the detection head. Brief Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a side view of the structure of the present invention; Figure 3 is Figure 2 a sectional view of the structure at A-A in Figure 4 is Figure 3 a schematic enlarged view of the structure at A in Figure 5 is Figure 4 a schematic enlarged view of the structure at B in Figure 6 is a schematic structural diagram of the connection between the mounting sleeve and the rubber cover of the present invention; Figure 7 is a schematic structural diagram of the mounting sleeve of the present invention.

[0019] In the figure: coating thickness gauge 1, detection head 2, assembling groove 3, mounting sleeve 4, metal gasket 5, clamping groove 6, guiding ring 7, rubber clamping ring 8, inner ring groove 9, outer ring groove 10, screw hole 11, rubber belt 12, hand-tightening screw 13, receiving groove 14, rubber cover 15, magic male sticker one 16, magic female sticker one 17, notch 18, magic male sticker two 19, magic female sticker two 20, picking groove 21. Detailed Embodiment

[0020] In order to clearly and completely describe the objectives, technical solutions of the present invention and make the advantages more clearly understood, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present invention.

[0021] Please refer to Figures 1 to 7 , the present invention provides a technical solution: a detection device for ship anti-corrosion coatings, including a coating thickness gauge 1 for detecting the thickness of the ship anti-corrosion coating. A detection head 2 is fixed at the bottom end of the coating thickness gauge 1. An installation sleeve 4 is sleeved at the bottom end of the detection head 2. An assembly groove 3 is opened at the bottom end of the detection head 2. The assembly groove 3 is an annular groove. The installation sleeve 4 is sleeved in the assembly groove 3. A limit card member is provided between the installation sleeve 4 and the assembly groove 3 to prevent the installation sleeve 4 from coming off and limit its position; the limit card member includes a card slot 6, a guiding ring 7 and a rubber retaining ring 8. The card slot 6 is opened on the top surface of the assembly groove 3. The card slot 6 is an annular groove with a round opening at the break. The guiding ring 7 is fixed on the top surface of the installation sleeve 4. A rubber retaining ring 8 is sleeved and fixed at the top end of the guiding ring 7. The rubber retaining ring 8 is a circular ring structure with a circular cross-section. After the guiding ring 7 is inserted into the card slot 6, the rubber retaining ring 8 is stuck in the card slot 6. A metal gasket 5 is fixed at the bottom end of the installation sleeve 4. The installation sleeve 4 is sleeved in the assembly groove 3. Push up the installation sleeve 4 so that the guiding ring 7 and the rubber retaining ring 8 are both inserted into the card slot 6. The rubber retaining ring 8 is stuck inside the card slot 6 to prevent the installation sleeve 4 from falling off, realizing the pre-limitation of the installation sleeve 4 installed at the bottom of the detection head 2; the installation sleeve 4 protects the bottom surface of the detection head 2 to prevent the bottom surface of the detection head 2 from being worn and affecting the use. And after the metal gasket 5 is installed at the bottom end of the installation sleeve 4, without disassembling the installation sleeve 4, the metal gasket 5 can be directly placed on the ship workpiece to be detected to detect the thickness of the anti-corrosion coating. When the metal gasket 5 is damaged, the installation sleeve 4 can be directly pulled out from the bottom of the detection head 2, and the bottom surface of the detection head 2 can be abutted against the ship workpiece for measurement work.

[0022] A hand-tightening screw 13 is screwed at the top end of the installation sleeve 4. The hand-tightening screw 13 passes through the installation sleeve 4 and clamps the detection head 2. An outer ring groove 10 is opened on the outer peripheral surface at the top end of the installation sleeve 4. An inner ring groove 9 is opened on the inner peripheral surface at the top end of the installation sleeve 4. A plurality of screw holes 11 are opened on the outer peripheral surface of the inner ring groove 9. The hand-tightening screw 13 corresponds to the screw holes 11 one by one. The hand-tightening screw 13 is screwed in the screw holes 11. A rubber belt 12 is fixed between the top surface and the bottom surface of the inner ring groove 9. The hand-tightening screw 13 tensions the rubber belt 12 and abuts against the surface of the assembly groove 3; after the installation sleeve 4 is sleeved at the bottom end of the detection head 2, the hand-tightening screw 13 is screwed to clamp the detection head 2 to prevent the installation sleeve 4 from falling off from the bottom end of the detection head 2.

[0023] On both sides of the mounting sleeve 4, a storage groove 14 and a notch 18 are respectively formed. Inside the storage groove 14, a rubber cover 15 is fixed. After the rubber cover 15 is unfolded, it covers the notch of the detection head 2, and one end of the rubber cover 15 is limited in the notch 18; both the storage groove 14 and the notch 18 are arc grooves, the radian of the storage groove 14 is equal to that of the notch 18, the height of the storage groove 14 is greater than that of the notch 18, and the storage groove 14 and the notch 18 are symmetrically distributed with respect to the mounting sleeve 4; on both sides of one end of the rubber cover 15, a male magic tape 16 and a female magic tape 19 are respectively fixed. On the surface of the storage groove 14, a female magic tape 17 is fixed. After the rubber cover 15 is folded and inserted into the storage groove 14, the female magic tape 17 and the male magic tape 16 are connected in cooperation; inside the notch 18, a female magic tape 20 is fixed. After the rubber cover 15 is unfolded to cover the notch of the detection head 2, one end of the rubber cover 15 is inserted into the notch 18. At this time, the male magic tape 19 and the female magic tape 20 are connected in cooperation; at one end of the storage groove 14, a picking groove 21 is formed. When the coating thickness gauge 1 is idle, the rubber cover 15 covers the bottom end of the detection head 2 to prevent the probe of the detection head 2 from being scratched by external objects. When using the coating thickness gauge 1, the rubber cover 15 can be stored in the storage groove 14.

[0024] The detailed usage method of the ship anti-corrosion coating detection device (coating thickness gauge 1): I. Installation of the mounting sleeve 4 Preliminary pre-limited installation: Hold the mounting sleeve 4 by hand and sleeved it in the assembly groove 3 at the bottom end of the detection head 2. Push up the mounting sleeve 4 so that the guiding ring 7 fixed on the top surface of the mounting sleeve 4 and the rubber retaining ring 8 sleeved and fixed at the top end of the guiding ring 7 are inserted into the card slot 6 opened on the top surface of the assembly groove 3. Since the rubber retaining ring 8 is a circular ring structure with a circular cross-section and the card slot 6 is an annular groove with a circular opening at the break, the rubber retaining ring 8 is stuck inside the card slot 6 to realize the preliminary limit position of the mounting sleeve 4 at the bottom of the detection head 2. At this time, the mounting sleeve 4 can be preliminarily fixed on the detection head 2 to prevent it from falling off easily.

[0025] Further fastening installation: Locate the outer ring groove 10 opened on the outer ring surface of the top end of the mounting sleeve 4, the inner ring groove 9 opened on the inner ring surface, and the multiple screw holes 11 (the hand-tightening screw 13 corresponds to the screw hole 11 one by one) opened on the outer ring surface of the inner ring groove 9. Align the hand-tightening screw 13 with the screw hole 11 and screw the hand-tightening screw 13 so that it is screwed into the screw hole 11. As the hand-tightening screw 13 rotates in, the hand-tightening screw 13 will gradually clamp the detection head 2. At the same time, the hand-tightening screw 13 tensions the rubber belt 12 fixed between the top surface and the bottom surface of the inner ring groove 9, so that the rubber belt 12 abuts against the surface of the assembly groove 3, further enhancing the stability of the connection between the mounting sleeve 4 and the detection head 2 and preventing the mounting sleeve 4 from falling off the bottom end of the detection head 2.

[0026] II. Use of the metal gasket 5 Normal detection use: After the installation sleeve 4 is installed, the metal gasket 5 fixed to its bottom end can be put into use. Without disassembling the installation sleeve 4, directly place the metal gasket 5 on the ship workpiece to be detected, and then use the coating thickness gauge 1 to detect the thickness of the anti-corrosion coating.

[0027] Handling when the metal gasket 5 is damaged: When the metal gasket 5 is damaged, first loosen the hand-tightened screw 13 to release the clamping of the hand-tightened screw 13 on the probe head 2. Directly pull the installation sleeve 4 out from the bottom of the probe head 2. At this time, the installation sleeve 4 is detached from the probe head 2, and then the bottom surface of the probe head 2 can be directly abutted against the ship workpiece for measurement work.

[0028] III. Use of the rubber cover 15 Protection during idle time: When the coating thickness gauge 1 is in an idle state, to avoid the probe of the probe head 2 being scratched by external objects, the rubber cover 15 needs to be covered on the bottom end of the probe head 2. Locate the storage groove 14 and the notch 18 (both the storage groove 14 and the notch 18 are arc grooves with equal radian, the height of the storage groove 14 is greater than the height of the notch 18, and the two are symmetrically distributed about the installation sleeve 4), as well as the magic male sticker 16 and the magic male sticker 19 fixed on both sides of one end of the rubber cover 15, the magic female sticker 17 fixed on the surface of the storage groove 14, and the magic female sticker 20 fixed inside the notch 18. Pull out the rubber cover 15 from the storage groove 14, unfold the rubber cover 15 to cover the notch of the probe head 2, and then insert one end of the rubber cover 15 into the notch 18 to make the magic male sticker 19 and the magic female sticker 20 cooperate and connect to complete the covering and protection of the bottom end of the probe head 2 by the rubber cover 15.

[0029] Storage during use: When it is necessary to use the coating thickness gauge 1 for detection, first separate the magic male sticker 19 and the magic female sticker 20 to take out one end of the rubber cover 15 from the notch 18. Fold the rubber cover 15 and insert it into the storage groove 14. At this time, the magic female sticker 17 and the magic male sticker 16 cooperate and connect to fix the rubber cover 15 in the storage groove 14 for storage, so as to perform normal detection operations. If it is necessary to take out the rubber cover 15 again, the rubber cover 15 can be picked out through the picking groove 21 opened at one end of the storage groove 14.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ship anti-corrosion coating detection device, including a coating thickness gauge (1) for detecting the thickness of the ship anti-corrosion coating, and a detection head (2) is fixed at the bottom end of the coating thickness gauge (1), characterized in that: The bottom end of the detection head (2) is sleeved with an installation sleeve (4). The top end of the installation sleeve (4) is screwed with a hand-tightening screw rod (13). The hand-tightening screw rod (13) passes through the installation sleeve (4) and clamps the detection head (2). A metal gasket (5) is fixed to the bottom end of the installation sleeve (4). A storage groove (14) and a notch (18) are respectively formed on both sides of the installation sleeve (4). A rubber cover (15) is fixed inside the storage groove (14). After the rubber cover (15) is unfolded, it covers the notch of the detection head (2), and one end of the rubber cover (15) is limited in the notch (18).

2. The anti-corrosion coating detection device for ships according to claim 1, characterized in that: A fitting groove (3) is formed at the bottom end of the detection head (2). The fitting groove (3) is an annular groove. The installation sleeve (4) is sleeved in the fitting groove (3). A limiting and locking member is provided between the installation sleeve (4) and the fitting groove (3) to prevent the installation sleeve (4) from being disengaged and limit its position.

3. The anti-corrosion coating detection device for ships according to claim 2, characterized in that: The limiting and locking member includes a clamping groove (6), a guiding ring (7), and a rubber clamping ring (8). The clamping groove (6) is formed on the top surface of the fitting groove (3). The clamping groove (6) is an annular groove with a round opening at the break. The guiding ring (7) is fixed to the top surface of the installation sleeve (4). The rubber clamping ring (8) is sleeved and fixed at the top end of the guiding ring (7). The rubber clamping ring (8) is a ring structure with a round cross-section. After the guiding ring (7) is inserted into the clamping groove (6), the rubber clamping ring (8) is clamped in the clamping groove (6).

4. The ship anti-corrosion coating detection device according to claim 2, characterized in that: An outer ring groove (10) is formed on the outer ring surface at the top end of the installation sleeve (4). An inner ring groove (9) is formed on the inner ring surface at the top end of the installation sleeve (4). A plurality of screw holes (11) are formed on the outer ring surface of the inner ring groove (9). The hand-tightening screw rod (13) corresponds to the screw holes (11) one by one, and the hand-tightening screw rod (13) is screwed into the screw holes (11).

5. The anti-corrosion coating detection device for a ship according to claim 4, characterized in that: An elastic rubber belt (12) is fixed between the top surface and the bottom surface of the inner ring groove (9). The hand-tightening screw rod (13) tensions the elastic rubber belt (12) to abut against the surface of the fitting groove (3).

6. The detection device for ship anti-corrosion coating according to claim 1, wherein: Both the storage groove (14) and the notch (18) are arc grooves. The radian of the storage groove (14) is equal to that of the notch (18). The height of the storage groove (14) is greater than that of the notch (18). The storage groove (14) and the notch (18) are symmetrically distributed with respect to the installation sleeve (4).

7. The anti-corrosion coating detection device for ships according to claim 1, characterized in that: One end of the rubber cover (15) is respectively fixed with a male magic tape one (16) and a male magic tape two (19) on both sides. A female magic tape one (17) is fixed to the surface of the storage groove (14). After the rubber cover (15) is folded and stuffed into the storage groove (14), the female magic tape one (17) and the male magic tape one (16) are cooperatively connected.

8. The anti-corrosion coating detection device for ships according to claim 7, characterized in that: A female magic tape two (20) is fixed inside the notch (18). After the rubber cover (15) is unfolded to cover the notch of the detection head (2), one end of the rubber cover (15) is stuffed into the notch (18). At this time, the male magic tape two (19) and the female magic tape two (20) are cooperatively connected.

9. The anti-corrosion coating detection device for a ship according to claim 1, characterized in that: A picking groove (21) is formed at one end of the storage groove (14).