Improved reinforcing steel bar protective layer thickness detector capable of being used for acceptance check

By fix the surface of the roller surface of the roller on the thickness detector of the steel protective layer, the protective layer of the coating and the nitrogen coating of the nitrogen coating is used to solve the problem of roller wear and disassembly difficulties, and achieve high precision. Detection and low -cost maintenance.

CN222419006UActive Publication Date: 2025-01-28CHINA CONSTR FIFTH ENG DIV CORP LTD
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Patent Information

Application Number
CN202420717408.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-09
Publication Date
2025-01-28
Estimated Expiration
2034-04-09

AI Technical Summary

Technical Problem

The rollers of the existing steel bar protective layer thickness detector wear during long-term use, resulting in inaccurate detection results. The integrated design of the rollers makes disassembly and replacement difficult, increasing maintenance costs and reducing detection efficiency.

Method used

The thickness detector of the improved steel protective layer is designed. The surface of the roller is fixed to the protective layer of the protective layer. The inside of the protective layer contains polymer coatings and nitrogen coating to enhance wear resistance. The card connection structure of the installation seat makes the roller's disassembly and replacement simple and fast.

Benefits of technology

It significantly improves the wear resistance of the roller, ensures the detection accuracy, reduces maintenance costs, improves work efficiency, and ensures the continuous and stable work of the detector.

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Abstract

The improved steel bar protective layer thickness detector comprises a machine body, a detection probe is fixedly installed in the center of the front surface of the machine body, pulley grooves are formed in the four corners of the front surface of the machine body, pulley yokes are arranged in the pulley grooves, the centers of the pulley yokes are rotationally connected with idler wheels, and the idler wheels are arranged in the pulley grooves. The surface of the roller is fixedly connected with a protective layer, and the interior of the protective layer comprises a polymer coating and a nitrogen coating. According to the improved steel bar protective layer thickness detector capable of being used for acceptance inspection, the protective layer is fixedly connected to the surface of the roller, and the polymer coating and the nitrogen coating are arranged in the protective layer, so that the wear resistance of the roller is remarkably enhanced, and the wear caused by friction is reduced, thereby ensuring that the contact area between the roller and a detection surface is stable; and the contact pressure is uniformly distributed, so that the measurement accuracy of the detection probe on the thickness of the steel bar protection layer is greatly improved, and errors are reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of measuring instruments, in particular to an improved steel bar protective layer thickness detector which can be used for acceptance. Background Art

[0002] The steel bar protection layer measuring instrument can be used to detect the construction quality of existing reinforced concrete projects and newly built reinforced concrete structures: determine the location and reinforcement of the steel bars, detect the thickness of the concrete protection layer based on the known diameter, and has the function of reinforcement scanning. In addition, it can also detect the location of magnetic bodies and conductors in non-magnetic and non-conductive media, such as cables and water heating pipes in the wall. This instrument is an intelligent non-destructive testing equipment with automatic detection, data storage and output functions.

[0003] The roller is the part that is in direct contact with the detection surface, and its wear directly affects the accuracy of the detection results. During long-term use, the surface material of the roller will gradually wear due to friction, resulting in a decrease in the contact area between the roller and the detection surface and uneven distribution of contact pressure, which in turn affects the detection probe's measurement accuracy of the thickness of the steel bar protective layer. At the same time, the roller part of the detector often adopts an integrated design, which makes it very difficult to disassemble and replace the roller. This design not only increases the maintenance cost, but also reduces the efficiency of the detector. When the roller is worn or damaged, it takes a lot of time and effort to disassemble and replace it, which seriously affects the project progress and the continuity of the detection work. Utility Model Content

[0004] The purpose of the utility model is to provide an improved steel bar protective layer thickness detector that can be used for acceptance, so as to solve the problem in the above background technology that the roller is the part of the detector that is in direct contact with the detection surface, and its wear directly affects the accuracy of the detection result. During long-term use, the surface material of the roller will gradually wear due to friction, resulting in a reduction in the contact area between the roller and the detection surface and uneven distribution of contact pressure, which in turn affects the measurement accuracy of the steel bar protective layer thickness by the detection probe. At the same time, the roller part of the detector often adopts an integrated design, which makes it very difficult to disassemble and replace the roller. This design not only increases the maintenance cost, but also reduces the use efficiency of the detector. When the roller is worn or damaged, it takes a lot of time and effort to disassemble and replace it, which seriously affects the progress of the project and the continuity of the detection work.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an improved steel bar protective layer thickness detector that can be used for acceptance, comprising a body, a detection probe is fixedly installed at the center of the front surface of the body, pulley grooves are opened at the four corners of the front surface of the body, a pulley frame is arranged inside the pulley groove, a roller is rotatably connected to the center of the pulley frame, a protective layer is fixedly connected to the surface of the roller, the interior of the protective layer includes a polymer coating and a nitrogen coating, a built-in mounting seat is fixedly connected to one side of the pulley groove, and a mounting rod is fixedly connected to one side of the pulley frame, One side of the mounting rod passes through the interior of the built-in mounting seat and is clamped with the built-in mounting seat, one side of the built-in mounting seat is fixedly connected with a clamping rod, the top and bottom of the built-in mounting seat are provided with movable grooves, one side of the top and bottom of the mounting rod are provided with limiting grooves, the interior of the movable groove is slidably connected with a movable block, the opposite sides of the two movable blocks are fixedly connected with the limiting blocks, the opposite sides of the two movable blocks are fixedly connected with a connecting rod, a limiting rod is provided on the side of the connecting rod away from the movable block, and the side of the limiting rod away from the connecting rod is fixedly connected to the inner wall of the movable groove.

[0006] Compared with the prior art, the beneficial effects of the utility model are:

[0007] The improved steel bar protective layer thickness detector that can be used for acceptance has a protective layer fixedly connected on the surface of the roller, and the protective layer contains a polymer coating and a nitrogen coating inside, which significantly enhances the wear resistance of the roller and reduces the wear caused by friction, thereby ensuring that the contact area between the roller and the detection surface is stable and the contact pressure is evenly distributed, which greatly improves the measurement accuracy of the steel bar protective layer thickness of the detection probe and reduces the generation of errors. The modular design is adopted, and the pulley frame is clamped with the built-in mounting seat through the mounting rod, making it simple and quick to remove and replace the roller. When the roller is worn or damaged, there is no need to disassemble the detector as a whole, and only the mounting rod needs to be operated to complete the disassembly, which reduces the maintenance cost and improves the work efficiency. The clamping structure between the mounting rod and the built-in mounting seat, through the cooperation of the clamping slot and the clamping rod, and the additional support of the support rod, significantly enhances the stability and reliability of the clamping, prevents the pulley frame from loosening or falling off during use, and ensures the continuous and stable operation of the detector. The clamping design of the limit block and the limit groove not only ensures the fixing effect of the mounting rod, but also makes the disassembly process smoother and reduces the difficulty of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model;

[0009] Figure 2 For this utility model Figure 1 A is a partial enlarged schematic diagram;

[0010] Figure 3 For this utility model Figure 1 A partial enlarged schematic diagram of B in the middle;

[0011] Figure 4 This is a structural cross-sectional view of the protective layer of the utility model;

[0012] Figure 5 This is a structural stereogram of the roller of the utility model;

[0013] Figure 6 It is a front view of the structure of the utility model.

[0014] In the figure: 1. body; 2. detection probe; 3. pulley groove; 4. pulley frame; 5. roller; 6. mounting rod; 7. positioning groove; 8. positioning block; 9. protective layer; 10. polymer coating; 11. nitrogen coating; 12. built-in mounting seat; 13. slot; 14. clamping rod; 15. support rod; 16. limit slot; 17. movable slot; 18. movable block; 19. connecting rod; 20. limit rod; 21. limit spring; 22. push block; 23. limit block. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-6The utility model provides a technical solution: an improved steel bar protective layer thickness detector that can be used for acceptance, including a body 1, a detection probe 2 is fixedly installed at the center of the front surface of the body 1, pulley grooves 3 are opened at the four corners of the front surface of the body 1, a pulley frame 4 is arranged inside the pulley groove 3, a roller 5 is rotatably connected to the center of the pulley frame 4, a protective layer 9 is fixedly connected to the surface of the roller 5, the inside of the protective layer 9 includes a polymer coating 10 and a nitrogen coating 11, a built-in mounting seat 12 is fixedly connected to one side of the pulley groove 3, a mounting rod 6 is fixedly connected to one side of the pulley frame 4, and one side of the mounting rod 6 penetrates to the built-in mounting The interior of the seat 12 is snap-connected with the built-in mounting seat 12, a clamping rod 14 is fixedly connected to one side of the built-in mounting seat 12, a movable groove 17 is provided at the top and bottom of the built-in mounting seat 12, a limiting groove 16 is provided at one side of the top and bottom of the mounting rod 6, a movable block 18 is slidably connected to the inside of the movable groove 17, the two movable blocks 18 are fixedly connected to the limiting blocks 23 on the opposite sides, the two movable blocks 18 are fixedly connected to the opposite sides of the connecting rod 19, a limiting rod 20 is provided on the side of the connecting rod 19 away from the movable block 18, and the limiting rod 20 is fixedly connected to the inner wall of the movable groove 17 on the side away from the connecting rod 19.

[0017] Positioning grooves 7 are provided at the top and bottom of one side of the pulley frame 4, and positioning blocks 8 are fixedly connected to the top and bottom of the inner wall of the pulley groove 3. One side of the positioning block 8 penetrates into the interior of the positioning groove 7 and is engaged with the positioning groove 7, thereby improving the installation and positioning effect.

[0018] A slot 13 is provided at the center of one end of the mounting rod 6, one side of a clamping rod 14 penetrates into the interior of the slot 13 and is clamped with the slot 13, a support rod 15 is fixedly connected to the center of the slot 13, one side of the support rod 15 penetrates into the interior of the clamping rod 14 and is clamped with the clamping rod 14, providing additional support and enhancing the stability and reliability of the clamping.

[0019] The side of the limiting block 23 away from the movable block 18 penetrates into the limiting groove 16 and is engaged with the limiting groove 16 , which can improve the fixing effect of the mounting rod 6 .

[0020] One side opposite to the two limit rods 20 penetrates into the inside of the two connecting rods 19 respectively and is slidably connected to the connecting rods 19 , so as to support the movement of the movable block 18 .

[0021] A limiting spring 21 is sleeved on the surface of the limiting rod 20 , and the top and bottom of the limiting spring 21 are fixedly connected to the movable groove 17 and the connecting rod 19 respectively, which can play a buffering effect.

[0022] The front side of the movable block 18 is fixedly connected with a push block 22, and the front side of the push block 22 penetrates the outside of the body 1 and is slidably connected to the body 1. The movable block 18 can be easily pushed by the push block 22 to achieve rapid installation and disassembly of the pulley frame 4.

[0023] Working principle: a detection probe 2 is fixedly installed at the center of the front surface of the body 1. When the detector is close to the object to be detected, the detection probe 2 will send a signal to measure the thickness of the steel bar protective layer by contact or non-contact method. Pulley frames 4 are arranged at the four corners of the body 1. The center of the pulley frame 4 is rotatably connected to a roller 5. The roller 5 provides support during the detection process and realizes the smooth movement of the detector by rolling, ensuring that the detection probe 2 can stably scan the measured surface. A protective layer 9 is fixedly connected to the surface of the roller 5. The protective layer 9 contains a polymer coating 10 and a nitrogen coating 11. These coatings can effectively resist friction, reduce the wear of the roller 5, extend the service life, and maintain stable contact between the roller 5 and the detection surface to ensure detection accuracy; the positioning groove 7 on one side of the pulley frame 4 is engaged with the positioning block 8 on the inner wall of the pulley groove 3 to ensure sliding The wheel frame 4 is correctly installed and positioned in the pulley groove 3. The pulley frame 4 is connected to the built-in mounting seat 12 through the mounting rod 6. The slot 13 opened at one end of the mounting rod 6 is engaged with the clamping rod 14 of the built-in mounting seat 12. At the same time, the support rod 15 in the slot 13 provides additional support, which enhances the stability and reliability of the clamping. The movable block 18 is engaged with the limiting slot 16 of the mounting rod 6 through the limiting block 23 to ensure the stable fixation of the mounting rod 6. The movable block 18 is connected to the limiting rod 20 through the connecting rod 19, and can slide in the movable slot 17 under the action of the limiting spring 21. The operator can easily push the movable block 18 through the pushing block 22 outside the body 1 to achieve rapid separation of the mounting rod 6 and the built-in mounting seat 12, thereby completing the disassembly of the pulley frame 4. The buffering effect of the limiting spring 21 makes the operation smoother and reduces impact and vibration.

[0024] In summary: the improved steel bar protective layer thickness detector that can be used for acceptance, by fixing the protective layer 9 on the surface of the roller 5, the protective layer 9 contains a polymer coating 10 and a nitrogen coating 11, which significantly enhances the wear resistance of the roller 5 and reduces the wear caused by friction, thereby ensuring that the contact area between the roller 5 and the detection surface is stable and the contact pressure is evenly distributed, which greatly improves the measurement accuracy of the steel bar protective layer thickness by the detection probe 2 and reduces the error. The modular design is adopted, and the pulley frame 4 is connected with the built-in mounting seat 12 through the mounting rod 6, making it simple and quick to disassemble and replace the roller 5. When the roller 5 is worn or damaged, there is no need to disassemble the detector as a whole. The disassembly can be completed by operating the mounting rod 6, which reduces maintenance costs and improves work efficiency. The clamping structure between the mounting rod 6 and the built-in mounting seat 12, through the cooperation of the clamping groove 13 and the clamping rod 14, and the additional support of the support rod 15, significantly enhances the stability and reliability of the clamping, prevents the pulley frame 4 from loosening or falling off during use, and ensures the continuous and stable operation of the detector. The clamping design of the limit block 23 and the limit groove 16 not only ensures the fixing effect of the mounting rod 6, but also makes the disassembly process smoother and reduces the difficulty of operation.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved steel bar protective layer thickness detector for acceptance, comprising a body (1), characterized in that: A detection probe (2) is fixedly mounted at the center of the front surface of the machine body (1); pulley grooves (3) are provided at the four corners of the front surface of the machine body (1); a pulley frame (4) is arranged inside the pulley groove (3); a roller (5) is rotatably connected to the center of the pulley frame (4); a protective layer (9) is fixedly connected to the surface of the roller (5); the interior of the protective layer (9) includes a polymer coating (10) and a nitrogen coating (11); a built-in mounting seat (12) is fixedly connected to one side of the pulley groove (3); a mounting rod (6) is fixedly connected to one side of the pulley frame (4); one side of the mounting rod (6) penetrates into the interior of the built-in mounting seat (12) and is locked with the built-in mounting seat (12). A clamping rod (14) is fixedly connected to one side of the built-in mounting seat (12), a movable groove (17) is provided at the top and bottom of the built-in mounting seat (12), a limiting groove (16) is provided at one side of the top and bottom of the mounting rod (6), a movable block (18) is slidably connected inside the movable groove (17), the two movable blocks (18) are fixedly connected to the limiting blocks (23) on the opposite sides, the two movable blocks (18) are fixedly connected to the opposite sides of the connecting rod (19), a limiting rod (20) is provided on the side of the connecting rod (19) away from the movable block (18), and the limiting rod (20) is fixedly connected to the inner wall of the movable groove (17) on the side away from the connecting rod (19).

2. The improved steel bar protective layer thickness detector for acceptance according to claim 1 is characterized in that: A positioning groove (7) is provided at the top and bottom of one side of the pulley frame (4), and a positioning block (8) is fixedly connected to the top and bottom of one side of the inner wall of the pulley groove (3), and one side of the positioning block (8) penetrates into the interior of the positioning groove (7) and is clamped with the positioning groove (7).

3. The improved steel bar protective layer thickness detector for acceptance according to claim 1 is characterized in that: A slot (13) is provided at the center of one end of the mounting rod (6), one side of the slot (14) penetrates into the interior of the slot (13) and is engaged with the slot (13), a support rod (15) is fixedly connected to the center of the slot (13), one side of the support rod (15) penetrates into the interior of the slot (14) and is engaged with the slot (14).

4. The improved steel bar protective layer thickness detector for acceptance according to claim 1 is characterized in that: The side of the limiting block (23) away from the movable block (18) penetrates into the interior of the limiting groove (16) and is engaged with the limiting groove (16).

5. The improved steel bar protective layer thickness detector for acceptance according to claim 1 is characterized in that: The opposite sides of the two limiting rods (20) respectively penetrate into the interior of the two connecting rods (19) and are slidably connected to the connecting rods (19).

6. The improved steel bar protective layer thickness detector for acceptance according to claim 1 is characterized in that: A limiting spring (21) is sleeved on the surface of the limiting rod (20), and the top and bottom of the limiting spring (21) are fixedly connected to the movable groove (17) and the connecting rod (19) respectively.

7. The improved steel bar protective layer thickness detector for acceptance according to claim 1 is characterized in that: The front side of the movable block (18) is fixedly connected to a push block (22), and the front side of the push block (22) penetrates the outside of the machine body (1) and is slidably connected to the machine body (1).