Structural concrete reinforcement protective layer thickness detection device

Abstract

The utility model relates to the technical field of detection devices, in particular to a structural concrete reinforcement protection layer thickness detection device. The device comprises a clamping and fixing frame used for placing and fixing the structural concrete reinforcement protective layer, a detection mechanism used for detecting the thickness of the protective layer, and a conveying sliding table used for conveying the clamping and fixing frame to the position of the detection mechanism. The detection mechanism comprises a gantry lifting frame erected on the conveying sliding table and a detection probe arranged on the gantry lifting frame and used for detection operation. The device has the effects of improving the existing structure of the structural concrete reinforcement protection layer detection instrument and improving the overall detection efficiency and the practical value.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of detection devices, in particular to a structural concrete steel bar protective layer thickness detection device. BACKGROUND

[0002] Reinforced concrete is a composite material formed by adding steel bars to concrete. This material can significantly improve the mechanical properties and bearing capacity of concrete by combining steel bars and concrete together, and can also improve the durability and stability of the structure. The protective layer in the reinforced concrete structure refers to the concrete layer between the outer edge of the outermost steel bar in the concrete structural member and the surface of the concrete, which is referred to as a protective layer.

[0003] In the related art, the detection of the thickness of the reinforced concrete protective layer mainly uses electromagnetic induction method, radar method and chiseling method. Generally, the detection instrument usually includes a machine body and a probe and the like. The probe can be selected from two types of electromagnetic induction probe and radar probe. The electromagnetic induction probe can generate an alternating magnetic field, and the secondary magnetic field signal generated by the steel bar induced current is used to determine the position of the steel bar and the thickness of the protective layer. The radar probe works according to the high-frequency electromagnetic wave reflection principle. The radar probe is composed of a radar host, an antenna and data acquisition and analysis software. The depth of the steel bar is calculated by relying on the time difference of electromagnetic wave reflection. The chiseling method needs to use tools such as electric hammers and chisels to directly chisel the concrete to expose the steel bar and then measure it. The chiseling method will cause irreversible damage to the concrete entity, so its applicable scenarios are limited.

[0004] In view of the above related art, the current detection method needs to rely on manual operation of the detection instrument to complete the detection of the thickness of the reinforced concrete protective layer. This manual handheld operation method has many disadvantages. Improper operation can easily cause the measurement result to deviate. Moreover, manual detection often takes a long time, the working strength of the operator is relatively large, and the overall detection efficiency is low. In addition, manual operation needs to directly contact the reinforced concrete structure, which inevitably brings certain safety hazards. CONTENT OF THE INVENTION

[0005] In order to improve the existing structure of the structural concrete steel bar protective layer detection instrument and improve the overall detection efficiency and practical value, the application provides a structural concrete steel bar protective layer thickness detection device.

[0006] The structural concrete steel bar protective layer thickness detection device provided by the application adopts the following technical scheme:

[0007] The utility model provides a kind of structural concrete reinforcement cover thickness detection device, including the clamping fixture for placing and fixing structural concrete reinforcement cover, the detection mechanism for carrying out cover thickness detection and the conveying skid for conveying clamping fixture to the position of the detection mechanism, the detection mechanism includes gantry lifting frame that is set on the conveying skid and detection probe for detecting operation is set in the gantry lifting frame.

[0008] By adopting the above technical scheme, the structural concrete reinforcement cover is stably placed and fixed by the clamping fixture, and then conveyed to the detection mechanism by the conveying skid. The position of the detection probe is accurately positioned by the gantry lifting frame. The manual operation of the detection instrument is abandoned, and the deviation of the measurement result caused by improper manual operation is reduced. The detection probe can carry out detection operation in a stable and accurate state.

[0009] Further, the clamping fixture includes a fixed seat provided on the conveying skid, an adjusting seat provided above the fixed seat, and an adjusting assembly provided on the fixed seat and used for controlling the adjusting seat to approach or move away from the fixed seat. Two clamping half-rings are symmetrically provided on the fixed seat and the adjusting seat, respectively, for abutting against the upper and lower outer walls of the structural concrete reinforcement cover.

[0010] By adopting the above technical scheme, the fixed seat and the adjusting seat are symmetrically provided with the clamping half-rings for abutting against the upper and lower outer walls of the structural concrete reinforcement cover. The structural concrete reinforcement cover is stably clamped from the upper and lower sides, so that it is not easy to shake or shift during detection, providing a reliable basis for detection operation. The adjusting assembly can control the adjusting seat to approach or move away from the fixed seat, so that it can be flexibly adjusted according to structural concrete reinforcement covers of different sizes, adapt to various specifications of the to-be-detected objects, and improve the compatibility of the detection device.

[0011] Further, the adjusting assembly includes an adjusting block fixedly connected to the outer wall of the adjusting seat, a sliding column provided on the fixed seat and slidably mounted with the adjusting block, a positioning column provided on the outer side of the fixed seat, and an adjusting cross beam slidably mounted on the positioning column.

[0012] The fixed seat is provided with an adjusting through slot on the side wall for the adjusting block to pass through and slide. The sliding column is provided in the adjusting through slot and fixedly connected with the fixed seat. The fixed seat is fixedly connected with an installation end plate on the outer wall, which cooperates with the sliding column. The sliding column is fixedly connected between the two installation end plates.

[0013] The adjusting crossbeam is provided with a fixed pin at the middle position for cooperating with the adjusting block, the adjusting crossbeam is provided with a through hole for the fixed pin to pass through and slide, the outer wall of the adjusting block is provided with a fixed slot at the corresponding position of the through hole for the fixed pin to insert, and the adjusting crossbeam is provided with a positioning pin at the adjacent position of the fixed pin for inserting the positioning column, and the positioning column is provided with a plurality of positioning holes for the positioning pin to insert at intervals along the length direction.

[0014] By adopting the above technical scheme, the sliding column provides a guiding effect for the sliding of the adjusting block, and the adjusting seat stably approaches or moves away from the fixed seat along the predetermined direction. The fixed pin is inserted into the corresponding fixed slot of the adjusting block to realize the fixed connection between the adjusting crossbeam and the adjusting block, and then the positioning pin is inserted into different positioning holes of the positioning column to realize the fixation of the adjusting crossbeam at different positions of the positioning column, so that the position of the adjusting seat is effectively locked. The multiple positioning cooperation can reliably fix the adjusted position, avoid accidental displacement of the adjusting seat caused by external force and other factors during detection, and ensure that the structural concrete steel bar protection layer is always in a stable clamping state.

[0015] Further, the fixed pin comprises a pulling plate and a plug rod vertically and fixedly connected to one side of the pulling plate and used for inserting the fixed slot, a rebound spring is sleeved on the plug rod, a stop sheet coaxially arranged and fixedly connected on the plug rod is used for abutting against the rebound spring, and the adjusting crossbeam is provided with a rebound slot for mounting the rebound spring and the stop sheet, and the rebound slot is coaxially arranged with the through hole and communicates with the through hole.

[0016] By adopting the above technical scheme, the setting of the pulling plate facilitates the plug-in and plug-out action of the plug rod. When the position of the adjusting seat needs to be adjusted, the pulling plate is pulled out to make the plug rod disengage from the fixed slot of the adjusting block. After adjustment, the pulling plate is loosened, the plug rod is reset and inserted into the fixed slot under the action of the rebound spring, and the position of the adjusting block is fixed.

[0017] Further, the clamping half-ring is fixedly connected with a connecting convex column on the outer wall, the fixed seat and the adjusting seat are symmetrically provided with and fixedly connected with a plug-in sleeve for plug-in of the connecting convex column, and the plug-in sleeve and the connecting convex column are both provided with a pre-opening hole for the connecting piece to pass through.

[0018] By adopting the technical scheme, the clamping half-ring is matched with the insertion sleeves on the fixing seat and the adjusting seat through the connecting convex column, and a pre-opening hole for the connecting piece to pass through is arranged, so that when the clamping half-ring is installed, the connecting convex column only needs to be aligned with the insertion sleeve and inserted, and then the connecting piece is fixed by passing through the pre-opening hole, so that the operation is simple and fast, and different specifications and shapes of the clamping half-ring can be replaced according to actual needs. Therefore, the clamping half-ring of a suitable size can be selected and installed according to different sizes of the structural concrete steel bar protective layer, the adaptation capability of the clamping fixing frame to different detection objects is improved, and the versatility of the entire detection device is enhanced.

[0019] Further, the conveying sliding table comprises a conveying base, base side plates arranged along the length direction of the conveying base and symmetrically arranged on both sides of the conveying base, and a horizontal driving assembly arranged on the base side plates, the fixing seat is fixedly connected with a conveying plate at the bottom side, the conveying base and the two base side plates jointly form a conveying groove for the sliding of the conveying plate, the base side plate is provided with a side wall sliding groove on the inner wall and in communication with the conveying groove and for the sliding of the conveying plate, and the horizontal driving assembly is arranged in the side wall sliding groove and threadedly matched with the conveying plate.

[0020] By adopting the technical scheme, the conveying sliding table forms the conveying groove for the sliding of the conveying plate through the conveying base and the base side plates, and the side wall sliding groove is arranged on the inner wall of the base side plate to provide accurate and stable guidance for the sliding of the conveying plate. The horizontal driving assembly is arranged in the side wall sliding groove and threadedly matched with the conveying plate, so that the fixing seat and the structural concrete steel bar protective layer fixed thereon can move smoothly and accurately along the predetermined direction, the part to be detected is conveyed to the position where the detection mechanism is located, the detection probe can be accurately aligned with the detection part, and the accuracy of the detection result is improved.

[0021] Further, the two sides of the conveying base are symmetrically provided with mounting tables for fixing the gantry lifting frame on the outer walls of the two base side plates, the gantry lifting frame comprises fixed vertical plates symmetrically arranged and vertically fixed on the two mounting tables, a moving plate horizontally arranged between the two fixed vertical plates, and a lifting driving assembly arranged on the fixed vertical plate and matched with the moving plate.

[0022] By adopting the technical scheme, the mounting tables on both sides of the conveying base provide a stable mounting basis for the fixed vertical plates of the gantry lifting frame, the fixed vertical plates provide support for the moving plate, and the entire gantry lifting frame is prevented from easily shaking or tilting during operation. The moving plate is horizontally arranged between the two fixed vertical plates, and the lifting driving assembly can accurately control the lifting position of the moving plate in the vertical direction, so that the detection probe mounted on the moving plate can be adjusted to a suitable height position according to the height requirement of different structural concrete steel bar protective layers, and the detection probe can be accurately aligned with the detection part, and detection errors caused by inaccurate height are avoided.

[0023] Further, the moving plate is fixedly connected with lifting connecting blocks on two sides, and the two fixed vertical plates are provided with lifting sliding grooves for sliding of the lifting connecting blocks on opposite sides, and the lifting driving assembly is located in the lifting sliding groove and threadedly connected with the lifting connecting block.

[0024] By adopting the above technical scheme, the lifting connecting block and the lifting sliding groove are slidably connected, which provides accurate and stable guiding effect for the lifting movement of the moving plate, and the lifting driving assembly is located in the lifting sliding groove and threadedly connected with the lifting connecting block, so that the driving assembly can accurately control the vertical movement of the lifting connecting block during operation, thereby driving the moving plate to realize stable and accurate lifting action, ensuring that different parts of the structural concrete reinforcement protective layer can be detected, effectively reducing the detection error caused by position deviation, and improving the detection accuracy.

[0025] Further, the moving plate is provided with a marking assembly for marking the outer wall of the structural concrete reinforcement protective layer, the marking assembly comprising a fixed frame provided on one side of the moving plate, a marking pen provided on the fixed frame, and a sliding guide rod provided on the fixed frame and used for mounting the marking pen, the fixed frame being provided with a sliding groove along the length direction, the sliding guide rod being fixedly connected between the sliding groove and the fixed frame, and a sliding block matched with the sliding groove being slidably mounted on the sliding guide rod, the marking pen being mounted on the sliding block on the side facing the conveying slide.

[0026] By adopting the above technical scheme, in the marking assembly, the marking pen is mounted on the fixed frame through the sliding guide rod and the sliding block, and can slide in the sliding groove along the sliding guide rod. The position of the marking pen can be flexibly adjusted according to actual needs, so that the outer wall of the structural concrete reinforcement protective layer can be directly marked during the detection process. When the detection probe detects the corresponding part, the marking pen can be used to mark the outer wall of the protective layer in time, which facilitates subsequent recording and tracing of the detection position and detection condition, avoids confusion or forgetting of the detection position, and helps to improve the systematicness and accuracy of the entire detection work.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. The clamping half-ring firmly clamps the concrete steel reinforcement protective layer from the upper and lower sides, avoiding shaking and displacement during detection. The conveying slide provides precise and stable guidance for the conveying plate. The horizontal driving assembly accurately conveys, ensuring that the detection probe accurately aligns with the detection position. The gantry lifting frame precisely controls the vertical position of the moving plate and the detection probe, reducing detection errors caused by inaccurate height. The device eliminates manual operation, and the clamping fixture, conveying slide, gantry lifting frame, etc. cooperate to enable the detection probe to operate in a stable and accurate state, reducing measurement deviations caused by improper manual operation. The conveying slide, gantry lifting frame, etc. can meet the detection needs of structural concrete steel reinforcement protective layers of different specifications and heights, expanding the application range of the detection device.

[0029] 2. The adjusting assembly can control the distance between the adjusting seat and the fixed seat, and can be flexibly adjusted according to structural concrete steel reinforcement protective layers of different sizes, adapting to various sizes of objects to be detected. The pulling plate of the fixed pin is easy to operate, and relies on the rebound spring to realize automatic return and fixation, which is simple to operate and can reliably fix the position of the adjusting seat. The clamping half-ring is convenient to replace clamping half-rings of different specifications and shapes through the cooperation of the connecting convex column, the plug-in sleeve, and the connecting piece, enhancing the adaptation ability to different detection objects.

[0030] 3. The marking assembly is easy to install and replace the marker, and the components are easy to maintain and inspect. The overall device is easy to assemble, debug, store, and transport, reducing the possibility of affecting detection work due to component failure, and ensuring long-term reliable operation of the detection device. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is the overall structure schematic diagram of a structural concrete steel reinforcement protective layer thickness detection device according to Embodiment 1 of the present application.

[0032] Figure 2 is the structure explosion schematic diagram of the fixed seat, adjusting seat, and adjusting assembly in Embodiment 1 of the present application.

[0033] Figure 3 is the cross-sectional structure schematic diagram of the adjusting assembly in Embodiment 1 of the present application.

[0034] Figure 4 is the cross-sectional structure schematic diagram of the fixed seat, adjusting seat, and clamping half-ring in Embodiment 1 of the present application.

[0035] Figure 5 is Figure 1 is the enlarged schematic diagram of the marking assembly in part A.

[0036] Figure 6 is the overall structure schematic diagram of a structural concrete steel reinforcement protective layer thickness detection device according to Embodiment 2 of the present application.

[0037] Explanation of reference signs: 1, conveying slide table; 11, conveying base; 111, conveying groove; 112, mounting table; 12, base side plate; 121, side wall sliding groove; 13, horizontal driving assembly; 14, conveying plate; 2, detection mechanism; 21, detection probe; 22, gantry lifting frame; 221, fixed vertical plate; 2211, lifting sliding groove; 222, moving plate; 2221, lifting connecting block; 223, lifting driving assembly; 3, clamping fixing frame; 31, fixing seat; 311, adjusting through groove; 312, mounting end plate; 313, insertion sleeve; 32, adjusting seat; 33, adjusting assembly; 331, adjusting block; 3311, through hole; 3312, fixing groove; 332, sliding column; 333, positioning column; 3331, positioning hole; 334, adjusting cross beam; 3341, through hole; 3342, rebound groove; 335, fixed bolt; 3351, pulling plate; 3352, insertion rod; 3353, rebound spring; 3354, baffle; 336, positioning pin; 34, clamping half ring; 341, connecting convex column; 4, marking assembly; 41, fixed frame; 411, sliding groove; 42, marking pen; 43, sliding guide rod; 44, sliding block. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below with reference to the accompanying drawings. Figures 1-6 , Example 1 and Example 2.

[0039] Example 1

[0040] The embodiment of the present application discloses a structural concrete reinforcement protective layer thickness detection device. Referring to the drawings, the structural concrete reinforcement protective layer thickness detection device comprises a conveying slide table 1, a detection mechanism 2 and a clamping fixing frame 3. Figure 1 , structural concrete reinforcement protective layer thickness detection device

[0041] The clamping fixing frame 3 is used for placing and fixing the structural concrete reinforcement protective layer, and the detection mechanism 2 is used for detecting the thickness of the protective layer. The detection mechanism 2 comprises a detection probe 21 used for detection work and a gantry lifting frame 22 arranged on the conveying slide table 1. The conveying slide table 1 can convey the clamping fixing frame 3 to the position of the gantry lifting frame 22, and then the detection probe 21 is driven to the upper side of the protective layer by the gantry lifting frame 22 to perform detection.

[0042] Referring to Figure 1 and Figure 2The clamping fixing frame 3 comprises a fixing base 31, an adjusting base 32 and an adjusting assembly 33. The fixing base 31 in the embodiment is in a U-shaped groove structure, the adjusting base 32 is in an inverted U-shaped groove structure, the distance between the two outer walls of the adjusting base 32 is slightly smaller than the distance between the two inner walls of the fixing base 31, so that the adjusting base 32 can be inserted into the groove structure of the fixing base 31. The fixing base 31 is fixedly connected with a conveying plate 14 at the bottom side for cooperation with the conveying slide table 1, and the adjusting base 32 is installed on the fixing base 31 and is adjusted to be close to or away from the fixing base 31 through the adjusting assembly 33.

[0043] In combination Figure 3 The adjusting assembly 33 comprises adjusting blocks 331, sliding columns 332, positioning columns 333 and an adjusting cross beam 334. The adjusting blocks 331 are symmetrically arranged and fixedly connected to the two outer side walls of the adjusting base 32, the fixing base 31 is symmetrically provided with adjusting through grooves 311 on the two side walls for installation and sliding of the adjusting blocks 331, the sliding columns 332 are fixedly connected in the sliding through grooves of the fixing base 31 and are arranged in the vertical direction, the adjusting blocks 331 are provided with through holes 3311 for cooperation with the sliding columns 332, and the adjusting blocks 331 are slidingly installed on the sliding columns 332.

[0044] The fixing base 31 is provided with four mounting end plates 312 perpendicularly arranged and fixedly connected to the outer walls on both sides, one positioning column 333 is fixedly connected between each two mounting end plates 312 arranged in an upper and lower manner, the adjusting cross beam 334 is slidingly installed on the sliding column 332, and the adjusting cross beam 334 is inserted with a fixing pin 335 for connecting the adjusting blocks 331.

[0045] The fixing pin 335 comprises a pulling plate 3351 arranged in parallel to the adjusting cross beam 334 and two insertion rods 3352 fixedly connected to the pulling plate 3351, the insertion rods 3352 are located on the side of the pulling plate 3351 close to the adjusting cross beam 334 and are arranged at positions close to both ends of the pulling plate 3351. The adjusting cross beam 334 is provided with a through hole 3341 for insertion and sliding of the insertion rods 3352, and the outer wall of the adjusting block 331 is provided with a fixing groove 3312 at the corresponding position of the through hole 3341 for insertion of the insertion rods 3352.

[0046] The insertion rod 3352 is sleeved with a rebound spring 3353, the insertion rod 3352 is coaxially provided and fixedly connected with a stop piece 3354 for abutting with the rebound spring 3353, the adjusting cross beam 334 is provided with a rebound groove 3342 for installation of the rebound spring 3353 and the stop piece 3354, and the rebound groove 3342 is coaxially arranged with the through hole 3341 and is in communication with each other.

[0047] The adjusting cross beam 334 is provided with a positioning pin 336 at the position adjacent to both sides of the fixed bolt 335 for inserting the positioning column 333, and the positioning column 333 is provided with a plurality of positioning holes 3331 for inserting the positioning pin 336 at intervals along the length direction. When the inserting rod 3352 is inserted into the fixed groove 3312 of the adjusting block 331, the adjusting seat 32 is fixedly connected with the fixed seat 31. The sliding column 332 provides a guide for the sliding of the adjusting block 331, so that the adjusting seat 32 stably approaches or moves away from the fixed seat 31 along the predetermined direction. The positioning pin 336 is inserted into different positioning holes 3331 of the positioning column 333, so that the adjusting cross beam 334 is fixed at different positions of the positioning column 333, thereby effectively locking the position of the adjusting seat 32.

[0048] With reference to Figure 1 And Figure 4 The opposite inner walls of the fixed seat 31 and the adjusting seat 32 are symmetrically provided with two clamping half-rings 34 for abutting against the outer walls of the structural concrete reinforcement protective layer. The clamping half-rings 34 in the embodiment are arc-shaped, so as to match the outer walls of the cylindrical structural concrete. The clamping half-rings 34 are fixedly connected with a connecting convex column 341, and the fixed seat 31 and the adjusting seat 32 are symmetrically provided with and fixedly connected with an inserting sleeve 313 for inserting the connecting convex column 341. The inserting sleeve 313 and the connecting convex column 341 are both provided with a pre-opening for passing a connecting piece. The connecting piece in the embodiment is preferably a bolt and a nut which are convenient to disassemble.

[0049] The conveying sliding table 1 comprises a conveying base 11, a base side plate 12 provided along the length direction of the conveying base 11 and symmetrically arranged on both sides of the conveying base 11, and a horizontal driving assembly 13 arranged on the base side plate 12. The conveying base 11 and the two base side plates 12 jointly form a conveying groove 111 for the sliding of the conveying plate 14 below the fixed seat 31. The base side plate 12 is provided with a side wall sliding groove 121 on the inner wall, which is in communication with the conveying groove 111 and is used for the sliding of the conveying plate 14. The horizontal driving assembly 13 in the embodiment is preferably a motor lead screw with stable driving force, which is arranged in the side wall sliding groove 121 and threadedly cooperates with the conveying plate 14.

[0050] The two sides of the conveying base 11 are symmetrically provided with mounting tables 112 which are integrally connected to the outer walls of the two base side plates 12 and are fixed with the gantry lifting frame 22. The gantry lifting frame 22 comprises fixed vertical plates 221 which are symmetrically provided and vertically fixed to the two mounting tables 112, a moving plate 222 which is horizontally arranged between the two fixed vertical plates 221, and a lifting driving assembly 223 which is arranged on the fixed vertical plates 221 and cooperates with the moving plate 222. In the embodiment, the lifting driving assembly 223 is preferably a motor lead screw which has relatively stable driving force. The moving plate 222 is fixedly connected with lifting connecting blocks 2221 at the two sides, the two fixed vertical plates 221 are provided with lifting sliding grooves 2211 at the opposite sides for the lifting connecting blocks 2221 to slide, and the lifting driving assembly 223 is located in the lifting sliding grooves 2211 and threadedly cooperates with the lifting connecting blocks 2221.

[0051] With reference to Figure 5 The moving plate 222 is provided with a marking assembly 4 on the side wall for marking the outer wall of the structural concrete reinforcement protective layer. When the detection probe 21 detects the corresponding position, a mark can be made on the outer wall of the protective layer, which facilitates the subsequent recording and tracing of the detection position and detection condition, and avoids the confusion or forgetfulness of the detection position. The marking assembly 4 comprises a fixed frame 41 which is detachably connected to one side of the moving plate 222, a marking pen 42, a sliding guide rod 43 and a sliding block 44. In the embodiment, the fixed frame 41 is preferably an arc-shaped plate material which can match the outer wall of the structural concrete, the fixed frame 41 is provided with a sliding groove 411 along the length direction, the sliding guide rod 43 is fixedly connected between the sliding groove 411 and the fixed frame 41, the sliding block 44 is slidingly installed on the sliding guide rod 43 and matches the sliding groove 411, and the marking pen 42 is detachably connected to one side of the sliding block 44 which faces the conveying sliding table 1 (the detachable connection manner of the fixed frame 41 and the marking pen 42 is not shown in the embodiment).

[0052] The implementation principle of the structural concrete reinforcement protective layer thickness detection device in the embodiment is that the conveying sliding table 1 is composed of a conveying base 11, base side plates 12 and a horizontal driving assembly 13, the conveying base 11 and the two base side plates 12 form a conveying groove 111, the horizontal driving assembly 13 is arranged in the side wall sliding groove 121 and threadedly cooperates with the conveying plate 14 at the lower side of the fixed base 31, the conveying plate 14 with the clamping fixed frame 3 is driven to slide in the conveying groove 111 by the horizontal driving assembly 13, so as to be conveyed to the designated position.

[0053] The gantry lifting frame 22 comprises the fixed vertical plates 221, the moving plate 222 and the lifting driving assembly 223. The moving plate 222 slides in the lifting sliding groove 2211 of the fixed vertical plate 221 through the lifting connecting block 2221 and threadedly cooperates with the lifting driving assembly 223. Under the action of the lifting driving assembly 223, the moving plate 222 moves up and down, and drives the detection probe 21 to reach the appropriate height to detect the thickness of the protective layer.

[0054] The marking assembly 4 is composed of a fixed frame 41, a marking pen 42, a sliding guide rod 43 and a sliding block 44. The sliding block 44 can slide along the sliding guide rod 43 in the sliding groove 411 of the fixed frame 41, and the marking pen 42 is installed on the sliding block 44. After the detection probe 21 detects the corresponding position, the marking pen 42 can be driven by the sliding block 44 to make marks on the outer wall of the protective layer, which is convenient for subsequent recording and management of the detection position information and avoids confusion or forgetting the detection position.

[0055] Embodiment 2

[0056] With reference to Figure 6 The difference between this embodiment and embodiment 1 is that the shapes of the two clamping half-rings 34 in this embodiment are set as two symmetrical U shapes, so as to be matched with the prismatic structure concrete with a rectangular cross section. In this embodiment, the fixing of the marking assembly 4 is preferably a flat panel material which can be matched with the outer wall of the structural concrete.

[0057] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made on the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A device for detecting the thickness of a structural concrete reinforcement cover, characterized in that: The invention comprises a clamping and fixing frame (3) for placing and fixing a protective layer of a structural concrete reinforcement, a detection mechanism (2) for detecting the thickness of the protective layer, and a conveying slide (1) for conveying the clamping and fixing frame (3) to the position of the detection mechanism (2); the detection mechanism (2) comprises a gantry lifting frame (22) mounted on the conveying slide (1) and a detection probe (21) provided on the gantry lifting frame (22) and used for detection operations.

2. The device for detecting the thickness of the protective layer of structural concrete reinforcement according to claim 1, characterized in that: The clamping and fixing frame (3) comprises a fixing seat (31) arranged on the conveying slide (1), an adjusting seat (32) arranged above the fixing seat (31), and an adjusting component (33) arranged on the fixing seat (31) and used for controlling the adjusting seat (32) to approach / move away from the fixing seat (31). Two clamping half rings (34) are symmetrically provided on the fixing seat (31) and the adjusting seat (32) for respectively supporting the upper and lower outer walls of the structural concrete reinforcement protective layer.

3. The device for detecting the thickness of the protective layer of structural concrete reinforcement according to claim 2, characterized in that: The adjustment assembly (33) includes an adjustment block (331) fixedly connected to the outer side wall of the adjustment seat (32), a sliding column (332) provided on the fixed seat (31) and for the adjustment block (331) to be slidably installed, a positioning column (333) provided on the outer side of the fixed seat (31), and an adjustment beam (334) slidably installed on the positioning column (333); The fixing seat (31) is provided with an adjustment slot (311) on the side wall for the adjustment block (331) to pass through and slide, the sliding column (332) is provided in the adjustment slot (311) and is fixedly connected to the fixing seat (31), and the fixing seat (31) is fixedly connected to an outer side wall with a mounting end plate (312) that matches the sliding column (332), and the sliding column (332) is fixedly connected between the two mounting end plates (312); The adjusting crossbeam (334) is provided with a fixing pin (335) for cooperating with the adjusting block (331) at a middle position, the adjusting crossbeam (334) is provided with a through hole (3341) for the fixing pin (335) to pass through and slide, the outer wall of the adjusting block (331) is provided with a fixing groove (3312) for inserting the fixing pin (335) at a corresponding position of the through hole (3341), the adjusting crossbeam (334) is provided with a positioning pin (336) for inserting the positioning column (333) at a position adjacent to the fixing pin (335), and the positioning column (333) is provided with a plurality of positioning holes (3331) for inserting the positioning pin (336) at intervals along the length direction.

4. The device for detecting the thickness of the protective layer of structural concrete reinforcement according to claim 3, characterized in that: The fixed latch (335) includes a pulling plate (3351) and an insertion rod (3352) vertically fixedly connected to one side of the pulling plate (3351) and used to be inserted into the fixed groove (3312); a rebound spring (3353) is sleeved on the insertion rod (3352); a baffle (3354) for abutting against the rebound spring (3353) is coaxially arranged and fixedly connected to the insertion rod (3352); the adjusting beam (334) is provided with a rebound groove (3342) for installing the rebound spring (3353) and the baffle (3354); the rebound groove (3342) is coaxially arranged with the through hole (3341) and is connected to each other.

5. The device for detecting the thickness of the protective layer of structural concrete reinforcement according to claim 2, characterized in that: The clamping half ring (34) is fixedly connected to a connecting boss (341) on the outer wall, and an inserting sleeve (313) for inserting the connecting boss (341) is symmetrically arranged and fixedly connected on the fixing seat (31) and the adjusting seat (32), and both the inserting sleeve (313) and the connecting boss (341) are provided with pre-opened holes for the connecting piece to pass through.

6. The device for detecting the thickness of the protective layer of structural concrete reinforcement according to claim 2, characterized in that: The conveying slide (1) includes a conveying base (11), base side plates (12) arranged along the length direction of the conveying base (11) and symmetrically arranged on both sides of the conveying base (11), and a horizontal driving component (13) arranged on the base side plates (12); the fixed seat (31) is fixedly connected to a conveying plate (14) on the bottom side; the conveying base (11) and the two base side plates (12) together form a conveying groove (111) for the conveying plate (14) to slide; the base side plates (12) are provided with a side wall slide groove (121) on the inner wall thereof, which is connected to the conveying groove (111) and for the conveying plate (14) to slide; the horizontal driving component (13) is arranged in the side wall slide groove (121) and is threadedly engaged with the conveying plate (14).

7. The device for detecting the thickness of the protective layer of structural concrete reinforcement according to claim 6, characterized in that: Mounting platforms (112) for fixing the gantry lifting frame (22) are symmetrically provided on the outer walls of the two base side plates (12) on both sides of the conveying base (11). The gantry lifting frame (22) includes fixed vertical plates (221) symmetrically arranged and vertically fixed to the two mounting platforms (112), a movable plate (222) horizontally arranged between the two fixed vertical plates (221), and a lifting drive assembly (223) arranged on the fixed vertical plates (221) and cooperating with the movable plate (222).

8. The device for detecting thickness of structural concrete reinforcement cover according to claim 7, characterized in that: The movable plate (222) is fixedly connected to a lifting connection block (2221) on both sides, and the two fixed vertical plates (221) are provided with a lifting slot (2211) on two opposite sides for the lifting connection block (2221) to slide, and the lifting drive assembly (223) is located in the lifting slot (2211) and is threadedly engaged with the lifting connection block (2221).

9. The device for detecting the thickness of the structural concrete reinforcement cover according to claim 7, characterized in that: The movable plate (222) is provided with a marking assembly (4) for marking the outer wall of the structural concrete reinforcement protective layer. The marking assembly (4) includes a fixed frame (41) provided on one side of the movable plate (222), a marking pen (42) provided on the fixed frame (41), and a sliding guide rod (43) provided on the fixed frame (41) and used for installing the marking pen (42). The fixed frame (41) is provided with a sliding groove (411) along the length direction. The sliding guide rod (43) is located in the sliding groove (411) and is fixedly connected to the fixed frame (41). A sliding block (44) matching the sliding groove (411) is slidingly installed on the sliding guide rod (43). The marking pen (42) is installed on the side of the sliding block (44) facing the conveying slide (1).

Images