A scanning detection device for steel bar diameter in concrete

Abstract

The invention discloses a scanning and detecting device for steel bar diameter in concrete, and relates to the technical field of measuring instruments, comprising a base, a side plate and a fixed block are fixedly provided on the base, a movable plate is reciprocatingly slidably connected to the base, a positioning slot is provided on the movable plate, a first rotating shaft is rotatably connected in the fixed block, one end of the first rotating shaft drives the movable plate to reciprocate horizontally through a transmission component, a second connecting plate is vertically slidably connected to one side of the side plate, the other end of the first rotating shaft drives the second connecting plate to reciprocate vertically through a linkage component, a measuring plate is horizontally slidably connected to the bottom of the second connecting plate, a distance measuring sensor is fixedly provided on one side of the measuring plate through the second connecting block, a button switch is installed on the side of the distance measuring sensor away from the measuring plate, a plurality of protrusions are vertically provided on one side of the movable plate through the first connecting block, and the button switch is abutted and matched with each protrusion in turn.

Description

Technical Field

[0001] The invention relates to the technical field of measuring instruments, in particular to a scanning detection device for steel bar diameter in concrete. Background Art

[0002] Steel bars are the key to the structural quality of construction projects. Before entering the site, if the diameter of the steel bars is not enough, then these steel bars need to be directly withdrawn. Moreover, after the unqualified steel bars are made into concrete components, the weight deviation does not meet the standard requirements, and their corrosion resistance, tensile strength and compressive strength are poor. Therefore, whether before or after entering the site, it is essential to measure the diameter of the steel bars.

[0003] For example, the Chinese patent with publication number CN117606417A and titled "Automatic Detection Device for Steel Bar Diameter" includes a base, a side plate, a material receiving box, a support seat and a feeding box connected to the base, a central shaft rotatably connected between the two support seats, a rotating drive assembly connected to the central shaft, a flip body and two card plates fixed on the central shaft, multiple card slots corresponding to the outer edges of the two card plates, a plurality of lining plates corresponding to the card slots fixed on the flip body, a feeding port corresponding to the card slots provided on the feeding box, a distance measuring sensor installed on the side plate, a top plate fixedly connected to the upper end of the side plate, a lifting drive assembly connected to the top plate, a lifting plate connected to the movable part of the lifting drive assembly, a pressure plate corresponding to the lining plate connected to the bottom of the lifting plate through a group of springs, and a detection plate corresponding to the distance measuring sensor connected to the pressure plate. The present invention can automatically detect the diameters of multiple steel bars through one feeding, and the degree of automation is high.

[0004] Although the automatic steel bar diameter detection device in the above patent is practical and convenient, it also has its shortcomings. It can only measure the diameter value of one position at a time. The obtained steel bar diameter value is not accurate enough and the measurement accuracy is relatively low. Therefore, it is necessary to repeatedly measure the values ​​of different positions of the steel bar multiple times to calculate the average value in order to more accurately obtain the steel bar diameter value. Summary of the invention

[0005] The purpose of the present invention is to provide a scanning detection device for the diameter of steel bars in concrete to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: the scanning detection device for the diameter of steel bars in concrete comprises a base, a side plate and a fixed block are fixedly provided on the base, a movable plate is reciprocatingly slidably connected to the base, a positioning groove for positioning the steel bar body is provided on the movable plate, a accommodating bucket is intermittently rotatably connected to the fixed block, a plurality of accommodating holes are provided on the accommodating bucket in a circular array, a first rotating shaft is rotatably connected in the fixed block, one end of the first rotating shaft drives the movable plate to reciprocate horizontally through a transmission assembly, a second connecting plate is vertically slidably connected to one side of the side plate, and the first rotating shaft is connected to the movable plate to reciprocate horizontally through a transmission assembly. The other end of the shaft drives the second connecting plate to reciprocate vertically through a linkage component. The bottom of the second connecting plate is horizontally slidably connected to a measuring plate. A distance measuring sensor is fixedly provided on one side of the measuring plate through a second connecting block. A button switch is installed on the side of the distance measuring sensor away from the measuring plate. An elastic component is provided between the measuring plate and the second connecting plate. One side of the measuring plate is in sliding contact with the steel bar body. A first connecting block is provided on one side of the movable plate. A plurality of protrusions are vertically provided on one side of the first connecting block. During the vertical sliding of the second connecting plate, the button switch is in contact with each protrusion in turn.

[0007] Furthermore, the linkage assembly includes a synchronous belt, an incomplete gear, a second gear meshing with the incomplete gear, a rotating rod, a pushing block, a first connecting plate, a first through hole and a sliding rod. One side of the side plate is rotatably connected to the second rotating shaft, the synchronous belt transmission is connected to the first rotating shaft and the second rotating shaft, the incomplete gear is sleeved on the second rotating shaft, the second gear is rotatably connected to one side of the side plate, one end of the second gear close to the second connecting plate is fixedly connected to the rotating rod through a third rotating shaft, the pushing block is rotatably connected to the rotating rod, the sliding rod is fixedly connected to one side of the second connecting plate, the first connecting plate is fixedly connected to the top of the sliding rod, a first through hole is opened in the first connecting plate, and the pushing block is reciprocatingly slidably connected in the first through hole.

[0008] Furthermore, a bracket is vertically fixedly connected to the base, a limiting sleeve is fixedly connected to one side of the bracket, and the sliding rod is vertically slidably connected in the limiting sleeve.

[0009] Furthermore, a support plate is fixedly connected to one side of the fixed block close to the synchronous belt, a motor is provided on the support plate, and an output end of the motor is coaxially fixedly connected to one end of the first rotating shaft.

[0010] Furthermore, the transmission assembly includes an incomplete end face gear, a first cylinder, a connecting rod and a second cylinder, the incomplete end face gear is coaxially fixedly connected to the other end of the first rotating shaft, the first cylinder is fixedly connected to the other end of the incomplete end face gear, the second cylinder is fixedly connected to a side of the movable plate close to the first cylinder, and the two ends of the connecting rod are rotatably sleeved with the first cylinder and the second cylinder respectively.

[0011] Furthermore, two guide rods are horizontally and symmetrically provided on one side of the fixed block close to the movable plate, and the movable plate is slidably sleeved on the two guide rods.

[0012] Furthermore, a first gear is horizontally rotatably connected in the fixed block, the first gear is meshed with the incomplete end face gear, and the top end of the first gear is coaxially fixedly connected with the bottom of the accommodating barrel.

[0013] Furthermore, the elastic component includes a slider, a telescopic rod and a spring sleeved on the telescopic rod. A slide groove is horizontally opened in the second connecting plate, the slider is slidably connected in the slide groove, the telescopic rod is arranged between the slider and the inner wall of the slide groove, and the bottom of the slider is fixedly connected to the top of the measuring plate.

[0014] Furthermore, a plurality of slots are provided on one side of the first connection block close to the movable plate, and each of the protrusions can be engaged with any of the slots.

[0015] Furthermore, a second through hole is formed on the second connecting plate.

[0016] Compared with the prior art, the present invention provides the following beneficial effects: the receiving barrel of the steel bar diameter scanning and detecting device in concrete rotates intermittently, the steel bar body falls from the receiving hole into the positioning groove, the linkage component drives the second connecting plate to move vertically downward, and the transmission component drives the moving plate to move horizontally, the steel bar body abuts against the measuring plate, so that the measuring plate, the steel bar body and the distance measuring sensor move synchronously and are relatively still in the horizontal direction. During the downward movement of the distance measuring sensor, the button switch abuts against each protrusion in turn, and the distance between the distance measuring sensor and the steel bar body at different positions is repeatedly measured. Since the distance between the distance measuring sensor and the measuring plate is fixed, the distance between the distance measuring sensor and the measuring plate can be subtracted from the distance between the distance measuring sensor and the steel bar body to obtain the diameter of the steel bar body, and the average diameter is taken, so that the detection result is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0019] Figure 2 A top view of the overall structure provided by an embodiment of the present invention;

[0020] Figure 3 for Figure 2 Sectional view at the middle BB;

[0021] Figure 4 for Figure 2 Sectional view at AA in the middle;

[0022] Figure 5 for Figure 4 Sectional view at CC;

[0023] Figure 6 for Figure 5 The enlarged view of point D in the middle;

[0024] Figure 7 A schematic diagram of a local structure provided by an embodiment of the present invention;

[0025] Figure 8 It is a schematic diagram of the local structure of the present invention when measuring the diameter of the steel bar body.

[0026] Description of reference numerals: 1, base; 2, side plate; 3, fixed block; 4, accommodating barrel; 5, accommodating hole; 6, first gear; 7, incomplete end face gear; 8, first cylinder; 9, connecting rod; 10, second cylinder; 11, moving plate; 12, guide rod; 13, first rotating shaft; 14, synchronous belt; 15, second rotating shaft; 16, incomplete gear; 17, second gear; 18, third rotating shaft; 19, rotating rod; 20, pushing block; 21, The first connecting plate; 22, the first through hole; 23, the sliding rod; 24, the limiting sleeve; 25, the bracket; 26, the second connecting plate; 27, the first connecting block; 28, the protrusion; 29, the supporting plate; 30, the measuring plate; 31, the distance measuring sensor; 32, the push button switch; 33, the second connecting block; 34, the sliding block; 35, the sliding groove; 36, the telescopic rod; 37, the spring; 38, the second through hole; 39, the motor; 40, the positioning groove; 41, the steel bar body. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] See also Figure 1-Figure 8A technical solution provided by an embodiment of the present invention is as follows: the scanning detection device for the diameter of steel bars in concrete comprises a base 1, a side plate 2 and a fixed block 3 are fixedly arranged on the base 1, a movable plate 11 is reciprocatingly slidably connected to the base 1, a positioning groove 40 for positioning a steel bar body 41 is provided on the movable plate 11, a receiving bucket 4 is intermittently rotatably connected to the fixed block 3, a plurality of receiving holes 5 are provided on the receiving bucket 4 in a circumferential array, a first rotating shaft 13 is rotatably connected in the fixed block 3, the other end of the first rotating shaft 13 drives the movable plate 11 to reciprocate horizontally through a transmission assembly, a second connecting plate 26 is vertically slidably connected to one side of the side plate 2, and the other end of the first rotating shaft 13 is connected to the movable plate 11 through a coupling assembly. The moving component drives the second connecting plate 26 to reciprocate vertically. The bottom of the second connecting plate 26 is horizontally slidably connected to the measuring plate 30. A distance sensor 31 is fixedly provided on one side of the measuring plate 30 through a second connecting block 33. A button switch 32 is installed on the side of the distance sensor 31 away from the measuring plate 30. An elastic component is provided between the measuring plate 30 and the second connecting plate 26. One side of the measuring plate 30 is in sliding contact with the steel bar body 41. A first connecting block 27 is provided on one side of the moving plate 11. A plurality of protrusions 28 are vertically provided on one side of the first connecting block 27. During the vertical sliding of the second connecting plate 26, the button switch 32 is in contact with each protrusion 28 in turn.

[0029] As a preferred technical solution, the linkage assembly includes a synchronous belt 14, an incomplete gear 16, a second gear 17 meshing with the incomplete gear 16, a rotating rod 19, a pushing block 20, a first connecting plate 21, a first through hole 22 and a sliding rod 23. One side of the side plate 2 is rotatably connected to the second rotating shaft 15, the synchronous belt 14 is transmission-connected to the first rotating shaft 13 and the second rotating shaft 15, the incomplete gear 16 is sleeved on the second rotating shaft 15, the second gear 17 is rotatably connected to one side of the side plate 2, and one end of the second gear 17 close to the second connecting plate 26 is fixedly connected to the rotating rod 19 through the third rotating shaft 18. Then, the push block 20 is rotatably connected to the rotating rod 19, the slide bar 23 is fixedly connected to one side of the second connecting plate 26, the first connecting plate 21 is fixedly connected to the top of the slide bar 23, and a first through hole 22 is provided in the first connecting plate 21. The push block 20 is reciprocatingly slidably connected in the first through hole 22. Specifically, the first rotating shaft 13 rotates to drive the second rotating shaft 15 to rotate through the synchronous belt 14, and the second rotating shaft 15 drives the incomplete gear 16 to rotate. Through the meshing transmission with the second gear 17, the rotating rod 19 drives the push block 20 to rotate, and the push block 20 drives the first connecting plate 21 to do vertical The first through hole 22 is provided to adapt to the horizontal displacement of the push block 20 when the rotating rod 19 drives the push block 20 to rotate. The first connecting plate 21 drives the second connecting plate 26 to perform vertical reciprocating lifting motion through the sliding rod 23, so that the button switch 32 can be abutted and matched with each protrusion 28 to measure the distance between different positions, and measure the distance between the distance sensor 31 and the steel bar body 41. Since the distance between the distance sensor 31 and the measuring plate 30 is fixed, the distance between the distance sensor 31 and the measuring plate 30 can be subtracted from the distance between the distance sensor 31 and the steel bar body 41. The distance between the rib bodies 41 can be used to determine the diameter of the steel bar bodies 41, and the average diameter is taken. During the process of the second connecting plate 26 moving up and resetting, the distance measurement at different positions is repeated. Multiple measurements make the measurement result more accurate. During the process of the movable plate 11 sliding toward the fixed block 3 and resetting, the incomplete gear 16 does not mesh with the second gear 17, and the second connecting plate 26 does not move in the vertical direction, thereby avoiding the second connecting plate 26 or the measuring plate 30 or the distance measuring sensor 31 from abutting against the second connecting block 33 during the process of the movable plate 11 sliding toward the fixed block 3 and resetting, thereby causing motion interference.

[0030] As a preferred technical solution, a bracket 25 is vertically fixedly connected to the base 1, a limiting sleeve 24 is fixedly connected to one side of the bracket 25, and the slide rod 23 is vertically slidably connected to the limiting sleeve 24. Specifically, the size of the limiting sleeve 24 is adapted to the slide rod 23, so that the slide rod 23 drives the second connecting plate 26 to slide back and forth only in the vertical direction.

[0031] As a preferred technical solution, a support plate 29 is fixedly connected to one side of the fixed block 3 close to the synchronous belt 14, and a motor 39 is provided on the support plate 29. The output end of the motor 39 is coaxially fixedly connected to one end of the first rotating shaft 13. Specifically, the motor 39 is started, and the motor 39 drives the first rotating shaft 13 to rotate, so that the synchronous belt 14 and the incomplete end face gear 7 rotate to perform measurement and feeding work.

[0032] As a preferred technical solution, the transmission assembly includes an incomplete end face gear 7, a first cylinder 8, a connecting rod 9 and a second cylinder 10. The incomplete end face gear 7 is coaxially fixedly connected to the other end of the first rotating shaft 13, the first cylinder 8 is fixedly connected to the other end of the incomplete end face gear 7, the second cylinder 10 is fixedly connected to the side of the movable plate 11 close to the first cylinder 8, and the two ends of the connecting rod 9 are respectively rotatably sleeved with the first cylinder 8 and the second cylinder 10. Specifically, the first rotating shaft 13 drives the incomplete end face gear 7 to rotate, and the first cylinder 8 is not coaxially fixedly connected to the incomplete end face gear 7, so as to avoid the first cylinder 8 from horizontal displacement during the rotation with the incomplete end face gear 7. The first cylinder 8 is horizontally displaced during the rotation with the incomplete end face gear 7, so that the connecting rod 9 drives the second cylinder 10 to horizontally displace. The incomplete end face gear 7 rotates one circle, and the second cylinder 10 drives the movable plate 11 to slide horizontally back and forth once, thereby completing the measurement of a steel bar body 41.

[0033] As a preferred technical solution, two guide rods 12 are horizontally symmetrically provided on one side of the fixed block 3 close to the movable plate 11, and the movable plate 11 is slidably sleeved on the two guide rods 12. Specifically, the two guide rods 12 play a guiding and limiting role, so that the movable plate 11 can only move along the length direction of the guide rods 12, thereby avoiding the movable plate 11 from shifting and shaking in the vertical direction, which affects the accuracy of the measurement results.

[0034] As a preferred technical solution, a first gear 6 is horizontally rotatably connected in the fixed block 3, the first gear 6 is meshed with the incomplete end face gear 7, and the top of the first gear 6 is coaxially fixedly connected to the bottom of the accommodating bucket 4. Specifically, the incomplete end face gear 7 is meshed with the first gear 6 for transmission, driving the accommodating bucket 4 to rotate. When the incomplete end face gear 7 is not meshed with the first gear 6, the first through hole 22 is located above the positioning groove 40, and the steel bar body 41 falls into the positioning groove 40 by its own gravity, which can realize cyclic automatic loading and improve the measurement efficiency.

[0035] As a preferred technical solution, the elastic component includes a slider 34, a telescopic rod 36 and a spring 37 sleeved on the telescopic rod 36. A slide groove 35 is horizontally opened in the second connecting plate 26. The slider 34 is slidably connected in the slide groove 35. The telescopic rod 36 is arranged between the slider 34 and the inner wall of the slide groove 35. The bottom of the slider 34 is fixedly connected to the top of the measuring plate 30. Specifically, through the cooperation between the spring 37, the telescopic rod 36 and the slider 34, the second connecting plate 26 is vertically slid. The measuring plate 30, the steel bar body 41 and the distance measuring sensor 31 move synchronously and are relatively stationary in the horizontal direction. After the measurement is completed, the elasticity of the spring resets the measuring plate 30 and the distance measuring sensor 31, and the next steel bar body 41 can be measured continuously. The measurement can be carried out uninterruptedly, thereby improving the work efficiency.

[0036] As a preferred technical solution, a plurality of slots are provided on one side of the first connecting block 27 close to the movable plate 11, and each protrusion 28 can be engaged with any slot. Specifically, the number of measuring positions can be changed by replacing the number of protrusions 28, and the measuring position can also be changed at the same time to avoid the situation where, within a certain height range of the steel bar body 41, the height of the steel bar body 41 is lower than the height of one or more protrusions 28 at the top, and the distance sensor 31 measures one or more values ​​that are equal to the distance between the distance sensor 31 and the measuring plate 30, resulting in an excessively large average value and inaccurate measurement results.

[0037] As a preferred technical solution, a second through hole 38 is opened on the second connecting plate 26. Specifically, the steel bar body 41 is movably connected in the second through hole 38. The second through hole 38 is provided to avoid movement interference with the steel bar body 41 during the vertical movement of the second connecting plate 26.

[0038] Working principle: The scanning detection device for steel bar diameter in concrete starts the motor 39, and the motor 39 drives the first rotating shaft 13 to rotate. The incomplete end face gear 7 is meshed with the first gear 6 for transmission, driving the accommodating barrel 4 to rotate. When the incomplete end face gear 7 is not meshed with the first gear 6, the first through hole 22 is located above the positioning groove 40, and the steel bar body 41 falls into the positioning groove 40 by its own gravity, which can realize cyclic automatic feeding and improve the measurement efficiency. The first rotating shaft 13 rotates and drives the second rotating shaft 15 to rotate through the synchronous belt 14. At the same time, the second rotating shaft 15 drives the incomplete gear 16 to rotate. Through the meshing transmission with the second gear 17, the rotating rod 19 drives the pushing block 20 to rotate, and the pushing block 20 drives the first connecting plate 21 to perform vertical reciprocating lifting motion. The first rotating shaft 13 drives the incomplete end face gear 7 to rotate, and the first cylinder 8 is not coaxially fixedly connected with the incomplete end face gear 7. The second cylinder 10 drives the moving plate 11 along the guide rod 12 The steel bar body 41 slides in the length direction, and the side of the measuring plate 30 close to the distance measuring sensor 31 abuts against the steel bar body 41. Through the cooperation between the spring 37, the telescopic rod 36 and the slider 34, the second connecting plate 26 makes the measuring plate 30, the steel bar body 41 and the distance measuring sensor 31 move synchronously during the vertical sliding process, and are relatively static in the horizontal direction. During the vertical displacement of the distance measuring sensor 31, the button switch 32 abuts against each protrusion 28 to measure the distance at different positions, and measure the distance between the distance measuring sensor 31 and the steel bar body 41. Since the distance between the distance measuring sensor 31 and the measuring plate 30 is fixed, the distance between the distance measuring sensor 31 and the measuring plate 30 can be subtracted from the distance between the distance measuring sensor 31 and the steel bar body 41 to obtain the diameter of the steel bar body 41, and the average diameter is taken. In the process of the second connecting plate 26 moving up and resetting, the distance measurement at different positions is repeated, and multiple measurements make the measurement result more accurate.

[0039] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A scanning detection device for steel bar diameter in concrete, characterized in that: The invention comprises a base (1), on which a side plate (2) and a fixed block (3) are fixedly provided, a movable plate (11) is reciprocatingly slidably connected to the base (1), a positioning groove (40) for positioning a steel bar body (41) is provided on the movable plate (11), a receiving bucket (4) is intermittently rotatably connected to the fixed block (3), a plurality of receiving holes (5) are provided on the receiving bucket (4) in a circular array, a first rotating shaft (13) is rotatably connected inside the fixed block (3), one end of the first rotating shaft (13) drives the movable plate (11) to rotate in a direction of rotation through a transmission assembly. The movable plate (11) reciprocates horizontally, and the transmission assembly comprises an incomplete end face gear (7), a first cylinder (8), a connecting rod (9) and a second cylinder (10); the incomplete end face gear (7) is coaxially fixedly connected to the other end of the first rotating shaft (13); the first cylinder (8) is fixedly connected to the other end of the incomplete end face gear (7); the second cylinder (10) is fixedly connected to a side of the movable plate (11) close to the first cylinder (8); and the two ends of the connecting rod (9) are rotatably sleeved with the first cylinder (8) and the second cylinder (10) respectively; One side of the side plate (2) is vertically slidably connected to a second connecting plate (26); the other end of the first rotating shaft (13) drives the second connecting plate (26) to vertically reciprocate via a linkage assembly; the linkage assembly comprises a synchronous belt (14), an incomplete gear (16), a second gear (17) meshing with the incomplete gear (16), a rotating rod (19), a pushing block (20), a first connecting plate (21), a first through hole (22) and a sliding rod (23); one side of the side plate (2) is rotatably connected to the second connecting plate (26); the other end of the first rotating shaft (13) drives the second connecting plate (26) to vertically reciprocate via a linkage assembly; the linkage assembly comprises a synchronous belt (14), an incomplete gear (16), a second gear (17) meshing with the incomplete gear (16), a rotating rod (19), a pushing block (20), a first connecting plate (21), a first through hole (22) and a sliding rod (23); A second rotating shaft (15) is provided, the synchronous belt (14) is transmission-connected to the first rotating shaft (13) and the second rotating shaft (15), the incomplete gear (16) is sleeved on the second rotating shaft (15), the second gear (17) is rotationally connected to one side of the side plate (2), one end of the second gear (17) close to the second connecting plate (26) is fixedly connected to the rotating rod (19) through a third rotating shaft (18), the pushing block (20) is rotationally connected to the rotating rod (19), and the sliding rod (23) is fixedly connected On one side of the second connecting plate (26), the first connecting plate (21) is fixedly connected to the top of the sliding rod (23), a first through hole (22) is provided in the first connecting plate (21), the pushing block (20) is reciprocatingly slidably connected in the first through hole (22), a measuring plate (30) is horizontally slidably connected to the bottom of the second connecting plate (26), a distance measuring sensor (31) is fixedly provided on one side of the measuring plate (30) via a second connecting block (33), and the distance measuring sensor (31) is moved away from the measuring plate (30). A button switch (32) is installed on one side of the measuring plate (30), an elastic component is arranged between the measuring plate (30) and the second connecting plate (26), one side of the measuring plate (30) is in sliding contact with the steel bar body (41), one side of the moving plate (11) is provided with a first connecting block (27), one side of the first connecting block (27) is vertically provided with a plurality of protrusions (28), and during the vertical sliding process of the second connecting plate (26), the button switch (32) is in sequential contact with each protrusion (28).

2. A scanning detection device for steel bar diameter in concrete according to claim 1, characterized in that: A bracket (25) is vertically fixedly connected to the base (1), a limiting sleeve (24) is fixedly connected to one side of the bracket (25), and the sliding rod (23) is vertically slidably connected inside the limiting sleeve (24).

3. A scanning detection device for steel bar diameter in concrete according to claim 1, characterized in that: A support plate (29) is fixedly connected to one side of the fixed block (3) close to the synchronous belt (14), and a motor (39) is provided on the support plate (29). The output end of the motor (39) is coaxially fixedly connected to one end of the first rotating shaft (13).

4. The scanning detection device for steel bar diameter in concrete according to claim 1, characterized in that: Two guide rods (12) are horizontally and symmetrically provided on one side of the fixed block (3) close to the movable plate (11), and the movable plate (11) is slidably sleeved on the two guide rods (12).

5. The scanning detection device for steel bar diameter in concrete according to claim 1, characterized in that: A first gear (6) is horizontally rotatably connected inside the fixed block (3), the first gear (6) is meshed with the incomplete end face gear (7), and the top end of the first gear (6) is coaxially fixedly connected to the bottom of the containing barrel (4).

6. The scanning detection device for steel bar diameter in concrete according to claim 1, characterized in that: The elastic component comprises a slider (34), a telescopic rod (36), and a spring (37) sleeved on the telescopic rod (36); a slide groove (35) is horizontally provided in the second connecting plate (26); the slider (34) is slidably connected in the slide groove (35); the telescopic rod (36) is arranged between the slider (34) and an inner wall of the slide groove (35); and the bottom of the slider (34) is fixedly connected to the top of the measuring plate (30).

7. The device for scanning and detecting the diameter of steel bars in concrete according to claim 1, characterized in that: A plurality of slots are provided on a side of the first connection block (27) close to the movable plate (11), and each of the protrusions (28) can be engaged with any of the slots.

8. The device for scanning and detecting the diameter of steel bars in concrete according to claim 1, characterized in that: The second connecting plate (26) is provided with a second through hole (38).

Images