Steel bar field detection device for constructional engineering acceptance

Abstract

The invention relates to the technical field of detection devices, in particular to a reinforcing steel bar field detection device for constructional engineering acceptance, which comprises a base, an adjusting shell, an oil cylinder, a clamping piece, a driving piece and a drawing instrument. The adjusting shell is installed on the base. The oil cylinder comprises a cylinder body and a telescopic cylinder, the cylinder body is spherically hinged with the adjusting shell, the telescopic cylinder is coaxial with the cylinder body and is in sliding fit with the cylinder body, an oil cavity is defined between the cylinder body and the telescopic cylinder, and the oil cavity is connected with the drawing instrument through a connecting pipe. And the clamping piece can clamp the embedded steel bar. The driving piece is used for driving the barrel to rotate relative to the adjusting shell. According to the steel bar on-site detection device for constructional engineering acceptance, a multiple-detection mode is adopted, the cylinder rotates relative to the adjusting shell, the directions of drawing force applied to embedded steel bars in each detection are different, the accuracy of the detection result can be improved, the detection device does not need to be repeatedly disassembled and assembled in each detection, and the detection efficiency is improved. The operation is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of detection devices, and in particular to a steel bar on-site detection device for construction project acceptance. Background Art

[0002] In the reinforcement and renovation of existing buildings, it is inevitable to carry out rebar planting. When planting rebar, usually holes are drilled in the base material such as concrete, wall rock, etc., and then high-strength rebar planting glue is injected into the hole and the rebar is inserted. After the rebar planting glue solidifies, the rebar and the base material are bonded together. This is a commonly used construction engineering technology.

[0003] 48 to 72 hours after the rebar is planted, in order to verify whether the strength of the rebar meets the requirements, a pull-out test is required for the rebar during acceptance. The non-destructive test load is a parameter in the rebar pull-out test, which takes 90% of the standard value of the rebar yield strength as the test load, and the pull-out force needs to last for 2 minutes. After the test, there should be no cracks in the concrete substrate, and the implanted rebar should not have slippage or other macro cracks, in order to be judged as qualified.

[0004] The purpose of the pull-out test is to detect the anchoring force and bearing capacity of the planted rebar. Therefore, when performing a pull-out test on the planted rebar, it is necessary to try to ensure that the direction of the pull-out force is consistent with the direction of the planted rebar so that the actual stress of the planted rebar can be accurately reflected. In the prior art, due to the bending of the planted rebar, operating errors, surface roughness of the substrate, etc., it is difficult to ensure that the direction of the pull-out force is consistent with the direction of the planted rebar, and it is impossible to reflect the true strength of the planted rebar. Therefore, if only one test is performed, it is difficult to ensure the accuracy of the test results. However, if multiple tests are performed, the detection device needs to be repeatedly disassembled and assembled, which is very inconvenient to operate. Summary of the invention

[0005] The present invention provides a steel bar on-site detection device for construction project acceptance, so as to solve the problem that the existing detection device has a deviation between the direction of the pulling force and the direction of the embedded steel bar during detection. If only one detection is performed, it is difficult to ensure the accuracy of the detection result. However, if multiple detections are performed, the detection device needs to be repeatedly disassembled and assembled, which is very inconvenient to operate.

[0006] A steel bar on-site detection device for construction project acceptance of the present invention adopts the following technical scheme: a steel bar on-site detection device for construction project acceptance, used for detecting embedded steel bars on a concrete substrate, including a base, an adjusting shell, a cylinder, a clamping member, a driving member and a pulling instrument; the base is abutted against the concrete substrate; the adjusting shell is installed on the base, the cylinder includes a cylinder and a telescopic cylinder, the cylinder is arranged perpendicular to the concrete substrate, the setting direction of the cylinder is called the first direction, and the cylinder is spherically hinged with the adjusting shell; the telescopic cylinder is coaxial with the cylinder and slidably cooperates with the cylinder, an oil chamber is defined between the cylinder and the telescopic cylinder, the oil chamber is filled with oil, and the oil chamber is connected to the pulling instrument through a connecting pipe; the clamping member is installed on the telescopic cylinder and is coaxially arranged with the telescopic cylinder, the embedded steel bars can pass through the base, the adjusting shell, the cylinder and the clamping member in sequence along the first direction, and the clamping member can clamp the embedded steel bars; the driving member is installed on the base, and the driving member is used to drive the cylinder to rotate relative to the adjusting shell.

[0007] Furthermore, the clamping member includes a plurality of clamping plates, which are evenly distributed around a first direction in the telescopic cylinder, and in an initial state, a gap is left between each two clamping plates adjacently arranged around the first direction, clamping holes for clamping embedded rebars are defined between the plurality of clamping plates, and the plurality of clamping plates are capable of moving along the radial direction of the telescopic cylinder.

[0008] Furthermore, a guide surface is provided inside the telescopic cylinder around the first direction, and the guide surface is an inclined surface. The two ends of the guide surface along the first direction are respectively called the first end and the second end. The first end is located on the side of the second end close to the base in the first direction, and the first end is located on the side of the second end close to the axis of the telescopic cylinder in the radial direction of the telescopic cylinder, and multiple clamping plates are slidably matched with the guide surface.

[0009] Furthermore, a first through hole is coaxially arranged on the base, a second through hole is coaxially arranged on the adjusting shell, the interior of the cylinder is hollow, and the embedded steel bar passes through the first through hole, the second through hole, the cylinder and the clamping hole in sequence along the first direction.

[0010] Furthermore, the interior of the clamping plate is hollow, and a through opening is left on one end of the clamping plate along the radial direction of the clamping plate toward the implanted bar. A liquid bag is arranged inside the clamping plate, and the liquid bag is filled with liquid.

[0011] Furthermore, the driving member includes a hydraulic cylinder, which is connected to the base and the cylinder.

[0012] Furthermore, two hydraulic cylinders are provided, and in an initial state, the projections of the two hydraulic cylinders on the base are perpendicular to each other.

[0013] Furthermore, the hydraulic cylinder is rotatably mounted on the base, and the output end of the hydraulic cylinder is articulated with the cylinder ball.

[0014] Furthermore, a plurality of clearance holes are formed on the base, and the plurality of clearance holes are evenly distributed around the first direction on the base.

[0015] Furthermore, the adjusting shell and the base are connected by bolts.

[0016] The beneficial effects of the present invention are as follows: a steel bar on-site detection device for acceptance of a construction project of the present invention cooperates by setting a base, an adjusting shell, a cylinder, a clamping part, a driving part and a pulling instrument. When it is necessary to detect the embedded steel bars on a concrete substrate, multiple detections are adopted. By rotating the cylinder relative to the adjusting shell, the direction of the pulling force applied to the embedded steel bars in each detection is different, which can improve the accuracy of the detection results. Moreover, the detection device does not need to be repeatedly disassembled and assembled for each detection, which is convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the overall structure of an embodiment of a steel bar on-site detection device for construction project acceptance according to the present invention; Figure 2 A schematic diagram of a detection unit of an embodiment of a steel bar on-site detection device for construction project acceptance according to the present invention; Figure 3 A cross-sectional view of a detection portion of an embodiment of a steel bar on-site detection device for construction project acceptance of the present invention; Figure 4 A schematic diagram of a base of an embodiment of a steel bar on-site detection device for construction project acceptance of the present invention; Figure 5 A schematic diagram of an adjusting shell of an embodiment of a steel bar on-site detection device for construction project acceptance of the present invention; Figure 6 It is a partial cross-sectional view of the detection part of an embodiment of a steel bar on-site detection device for construction project acceptance of the present invention; Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0019] In the figure: 100, concrete substrate; 200, detection part; 210, base; 211, matching hole; 212, first through hole; 213, clearance hole; 220, adjustment shell; 221, mounting hole; 222, bolt; 223, second through hole; 230, cylinder; 231, connecting port; 240, telescopic cylinder; 241, guide surface; 250, clamping plate; 251, liquid bag; 252, liquid inlet; 260, driving member; 300, pulling instrument; 400, connecting pipe; 500, embedded rebar. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] An embodiment of a steel bar on-site detection device for construction project acceptance of the present invention is as follows Figures 1 to 7 shown.

[0022] A steel bar on-site detection device for construction project acceptance is used to detect the embedded steel bar 500 on the concrete substrate 100, and includes a detection unit 200 and a puller 300. The detection unit 200 includes a base 210, an adjustment shell 220, an oil cylinder, a clamping member and a driving member 260. The base 210 is in contact with the concrete substrate 100, the adjustment shell 220 is installed on the base 210, the oil cylinder includes a cylinder 230 and a telescopic cylinder 240, the cylinder 230 is arranged perpendicular to the concrete substrate 100, the setting direction of the cylinder 230 is called the first direction, and the cylinder 230 is spherically hinged with the adjustment shell 220, the telescopic cylinder 240 is slidably installed in the cylinder 230 and is coaxial with the cylinder 230, an oil chamber is defined between the cylinder 230 and the telescopic cylinder 240, the oil chamber is filled with oil, and the oil chamber is connected to the puller 300 through a connecting pipe 400. The puller 300 is a prior art, and is used to apply a pulling force to the implanted bar 500 to be tested.

[0023] The clamping member is mounted on the telescopic cylinder 240 and is coaxially arranged with the telescopic cylinder 240. The anchor bar 500 can sequentially pass through the base 210, the adjustment shell 220, the cylinder 230 and the clamping member along the first direction, and the clamping member can clamp the anchor bar 500. The driving member 260 is mounted on the base 210 and connects the base 210 and the cylinder 230. The driving member 260 is used to drive the cylinder 230 to rotate relative to the adjustment shell 220.

[0024] In this embodiment, by arranging the base 210, the adjustment shell 220, the oil cylinder, the clamping member, the driving member 260 and the pulling instrument 300, when it is necessary to detect the embedded steel bar 500 on the concrete substrate 100, the detection unit 200 is firstly put on the embedded steel bar 500, and the embedded steel bar 500 is clamped by the clamping member. At this time, if the embedded steel bar 500 is not perpendicular to the concrete substrate 100, then after the clamping member clamps the embedded steel bar 500, the clamping member will bend the part of the embedded steel bar 500 outside the concrete substrate 100 to be perpendicular to the concrete substrate 100. That is, the part of the embedded steel bar 500 outside the concrete substrate 100 is made coaxial with the clamping member. Then, the connecting pipe 400 is used to connect the oil chamber and the pulling device 300, and pressure is applied to the oil chamber through the pulling device 300, so that the telescopic cylinder 240 tends to move along the first direction away from the concrete substrate 100. The telescopic cylinder 240 will pull the embedded steel bar 500 through the clamping member and apply a pulling force to the embedded steel bar 500.

[0025] Then, the driving member 260 is used to drive the cylinder 230 to rotate relative to the adjusting shell 220. The rotation of the cylinder 230 will drive the telescopic cylinder 240 and the clamping member to rotate synchronously, and drive the part of the embedded steel bar 500 outside the concrete substrate 100 to rotate through the clamping member, thereby changing the direction of the pulling force applied to the embedded steel bar 500, and then continue to test in the same way.

[0026] In order to improve the accuracy of the test results, the cylinder 230 can be rotated relative to the adjustment shell 220 for multiple times and the test can be repeated. After multiple tests, it is observed whether cracks appear in the concrete substrate 100, and whether the embedded steel bar 500 has slippage or other macroscopic crack damage. If the embedded steel bar 500 still does not fail after multiple tests, it is considered that the embedded steel bar 500 is qualified.

[0027] That is, when testing the embedded steel bars 500 on the concrete substrate 100, this embodiment adopts a multiple-test method. By rotating the cylinder 230 relative to the adjustment shell 220, the direction of the pulling force applied to the embedded steel bars 500 in each test is different, which can improve the accuracy of the test results. In addition, the test device does not need to be repeatedly disassembled and assembled for each test, which is convenient for operation.

[0028] Specifically, the end surface of the adjustment shell 220 close to the base 210 in the first direction is a plane, and the end surface of the adjustment shell 220 far from the base 210 in the first direction is a spherical surface.

[0029] The adjustment housing 220 and the base 210 are connected by bolts 222. The adjustment housing 220 is provided with a plurality of mounting holes 221, which are arranged along a first direction, the base 210 is provided with a plurality of matching holes 211, and a plurality of bolts 222 are provided, the bolts 222, the mounting holes 221 and the matching holes 211 are arranged one by one, and the bolts 222 pass through the mounting holes 221 and the matching holes 211 arranged corresponding thereto in sequence along the first direction.

[0030] Furthermore, a connecting port 231 is provided on the cylinder 230 , and the connecting port 231 is communicated with the oil chamber, and the connecting port 231 is connected to the pulling instrument 300 through a connecting pipe 400 .

[0031] In a further embodiment, the clamping member includes a plurality of clamping plates 250, and the plurality of clamping plates 250 are evenly distributed around a first direction in the telescopic cylinder 240, and in an initial state, a gap is left between each two adjacent clamping plates 250 arranged around the first direction, and clamping holes for clamping the embedded rebar 500 are defined between the plurality of clamping plates 250, and the plurality of clamping plates 250 can move along the radial direction of the telescopic cylinder 240.

[0032] Specifically, three clamping plates 250 are provided. A guide surface 241 is provided inside the telescopic cylinder 240. The guide surface 241 is provided around the first direction inside the telescopic cylinder 240, and the guide surface 241 is an inclined surface. The two ends of the guide surface 241 along the first direction are respectively referred to as the first end and the second end. The first end is located on the side of the second end close to the base 210 in the first direction, and the first end is located on the side of the second end close to the axis of the telescopic cylinder 240 in the radial direction of the telescopic cylinder 240. The plurality of clamping plates 250 are all slidably matched with the guide surface 241.

[0033] Specifically, the base 210 is coaxially provided with a first through hole 212, the adjusting shell 220 is coaxially provided with a second through hole 223, the cylinder 230 is hollow inside, and the anchor bar 500 passes through the first through hole 212, the second through hole 223, the cylinder 230 and the clamping hole in sequence along the first direction. The first through hole 212 and the second through hole 223 are both circular, and the diameters of the first through hole 212 and the second through hole 223 are much larger than the diameter of the anchor bar 500. That is, the first through hole 212 and the second through hole 223 will not restrict the movement of the anchor bar 500.

[0034] In a further embodiment, the clamping plate 250 is hollow inside, and a through opening is left on one end of the clamping plate 250 along the radial direction of the clamping plate 250 toward the embedded bar 500. A liquid capsule 251 is arranged inside the clamping plate 250, and the liquid capsule 251 is filled with liquid.

[0035] Specifically, the clamping plate 250 is provided with a liquid inlet 252 , which is communicated with the corresponding liquid capsule 251 , and the liquid inlet 252 is locked by a locking cap so that the liquid inlet 252 can be opened or closed.

[0036] In this embodiment, a plurality of clamping plates 250 are provided. Before the test, the anchor bar 500 is first passed through the first through hole 212, the second through hole 223, the cylinder 230 and the clamping hole in sequence. At this time, the clamping plate 250 can contact the anchor bar 500. In order to improve the tightness of the clamping, an external oil pump is used to inject oil into the oil chamber, so that the telescopic cylinder 240 moves relative to the cylinder 230 in the first direction away from the base 210. The telescopic cylinder 240 will also move relative to the clamping plate 250, changing the position of the guide surface 241 that cooperates with the clamping plate 250, and because the adjacent arrangement around the first direction in the initial state is A gap is left between the two clamping plates 250 so that the clamping plates 250 have room to move in the radial direction of the telescopic cylinder 240, and when the anchor bar 500 contacts the clamping plates 250, the friction between the two will limit the movement of the clamping plates 250 in the first direction. Therefore, when the telescopic cylinder 240 moves, multiple clamping plates 250 will be prompted to move in the radial direction of the telescopic cylinder 240 toward the side close to the anchor bar 500, clamping the anchor bar 500, so that the clamping plates 250 have no displacement to continue moving in the radial direction of the telescopic cylinder 240, that is, at this time, the clamping plates 250 and the anchor bar 500 can be approximately fixed.

[0037] When clamping the rebar 500, the liquid capsule 251 can better match the shape of the rebar 500, and the rebar 500 can be pressed by the contact between the liquid capsule 251 and the rebar 500, which will not damage the rebar 500 and can ensure a close connection with the rebar 500.

[0038] In a further embodiment, the driving member 260 includes a hydraulic cylinder, which connects the base 210 and the cylinder 230 .

[0039] Furthermore, two hydraulic cylinders are provided, and in an initial state, the projections of the two hydraulic cylinders on the base 210 are perpendicular to each other.

[0040] Specifically, the hydraulic cylinder is rotatably mounted on the base 210, and the output end of the hydraulic cylinder is ball-jointed with the cylinder 230. By making the output end of the hydraulic cylinder ball-jointed with the cylinder 230, the degree of freedom of rotation of the cylinder 230 can be improved.

[0041] By setting up hydraulic cylinders, when in use, the two hydraulic cylinders are respectively connected to the hydraulic system of the external device, and the cylinder 230 is driven to rotate relative to the adjusting shell 220 by the hydraulic cylinders. In addition, setting up two hydraulic cylinders can drive the cylinder 230 to rotate in multiple directions, increase the rotation variable of the cylinder 230, and further improve the accuracy of detection.

[0042] In a further embodiment, the base 210 is provided with a plurality of clearance holes 213, and the plurality of clearance holes 213 are evenly distributed around the first direction on the base 210. Specifically, there are four clearance holes 213, and every two adjacent clearance holes 213 around the first direction are perpendicular to each other.

[0043] By providing the clearance holes 213 , during detection, the embedded reinforcement 500 on the concrete substrate 100 can be avoided as much as possible, which is convenient for detection.

[0044] In another possible embodiment, a pressure strip is provided in the circumferential direction of the clamping plate 250 . The pressure strip is elastic and is slidably matched with the guide surface 241 .

[0045] By providing the pressure strip, when the telescopic cylinder 240 moves relative to the clamping plate 250, the pressure strip can be slightly deformed, so that the pressure strip and the guide surface 241 always maintain surface contact, thereby improving the uniformity of the force on the clamping plate 250. It should be particularly noted that the elasticity of the pressure strip is not large and will not affect the movement of the clamping plate 250 in the radial direction of the telescopic cylinder 240.

[0046] In combination with the above embodiments, the specific working process is as follows: When it is necessary to inspect the rebar 500 on the concrete substrate 100, the rebar 500 is passed through the first through hole 212, the second through hole 223, the cylinder 230 and the clamping hole in sequence along the first direction. At this time, the clamping plate 250 can contact the rebar 500. In order to improve the tightness of the clamping, an external oil pump is used to inject oil into the oil chamber, so that the telescopic cylinder 240 moves relative to the cylinder 230 to the side away from the base 210, and the telescopic cylinder 240 will also move relative to the clamping plate 250, changing the position of the guide surface 241 matched with the clamping plate 250, and prompting multiple clamping plates 250 to move in the radial direction of the telescopic cylinder 240 to the side close to the rebar 500, clamping the rebar 500, so that the clamping plate 250 has no displacement to continue to move in the radial direction of the telescopic cylinder 240, that is, at this time, the clamping plate 250 and the rebar 500 can be approximately fixed.

[0047] At this time, if the embedded steel bar 500 is not perpendicular to the concrete substrate 100, after the clamping plate 250 clamps the embedded steel bar 500, the clamping plate 250 will bend the embedded steel bar 500 outside the concrete substrate 100 to be perpendicular to the concrete substrate 100. Then, the connecting pipe 400 is used to connect the oil chamber and the pulling instrument 300, and the pulling instrument 300 is used to apply pressure to the oil chamber, so that the telescopic cylinder 240 has a tendency to move along the first direction to the side away from the concrete substrate 100, and the telescopic cylinder 240 will pull the embedded steel bar 500 through the clamping plate 250 to apply a pulling force to the embedded steel bar 500.

[0048] Then, the hydraulic cylinder is used to drive the cylinder body 230 to rotate relative to the adjusting shell 220. The rotation of the cylinder body 230 will drive the telescopic cylinder 240 and the multiple clamping plates 250 to rotate synchronously, and drive the part of the embedded steel bars 500 outside the concrete substrate 100 to rotate through the clamping plates 250, thereby changing the direction of the pulling force applied to the embedded steel bars 500, and then continue to test in the same way.

[0049] In order to improve the accuracy of the test results, the cylinder 230 can be rotated relative to the adjustment shell 220 for multiple times and the test can be repeated. After multiple tests, it is observed whether cracks appear in the concrete substrate 100, and whether the embedded steel bar 500 has slippage or other macroscopic crack damage. If the embedded steel bar 500 still does not fail after multiple tests, it is considered that the embedded steel bar 500 is qualified.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel bar on-site detection device for construction project acceptance, used for detecting embedded steel bars on a concrete substrate, characterized in that: It includes a base, an adjusting shell, a cylinder, a clamping part, a driving part and a pulling instrument; The base is in contact with the concrete substrate; the adjusting shell is installed on the base, the oil cylinder includes a cylinder body and a telescopic cylinder, the cylinder body is arranged perpendicular to the concrete substrate, the setting direction of the cylinder body is called the first direction, and the cylinder body is spherically hinged with the adjusting shell; the telescopic cylinder is coaxial with the cylinder body and slidingly cooperates with the cylinder body, an oil chamber is defined between the cylinder body and the telescopic cylinder, the oil chamber is filled with oil, and the oil chamber is connected to the pulling instrument through a connecting pipe; the clamping piece is installed on the telescopic cylinder and is coaxially arranged with the telescopic cylinder, the embedded steel bar can pass through the base, the adjusting shell, the cylinder body and the clamping piece in sequence along the first direction, and the clamping piece can clamp the embedded steel bar; the driving piece is installed on the base, and the driving piece is used to drive the cylinder body to rotate relative to the adjusting shell.

2. A steel bar on-site detection device for construction project acceptance according to claim 1, characterized in that: The clamping member includes multiple clamping plates, which are evenly distributed around a first direction in the telescopic cylinder, and in an initial state, a gap is left between every two clamping plates adjacent to each other around the first direction. Clamping holes for clamping embedded rebars are defined between the multiple clamping plates, and the multiple clamping plates can move along the radial direction of the telescopic cylinder.

3. A steel bar on-site detection device for construction project acceptance according to claim 2, characterized in that: A guide surface is arranged inside the telescopic cylinder around the first direction, and the guide surface is an inclined surface. The two ends of the guide surface along the first direction are respectively called the first end and the second end. The first end is located on the side of the second end close to the base in the first direction, and the first end is located on the side of the second end close to the axis of the telescopic cylinder in the radial direction of the telescopic cylinder. Multiple clamping plates are slidably matched with the guide surface.

4. A steel bar on-site detection device for construction project acceptance according to claim 2, characterized in that: A first through hole is coaxially arranged on the base, a second through hole is coaxially arranged on the adjusting shell, the cylinder is hollow inside, and the embedded steel bar passes through the first through hole, the second through hole, the cylinder and the clamping hole in sequence along the first direction.

5. A steel bar on-site detection device for construction project acceptance according to claim 2, characterized in that: The clamping plate is hollow inside, and a through opening is left on one end of the clamping plate along the radial direction of the clamping plate toward the implanted reinforcement. A liquid bag is arranged inside the clamping plate, and the liquid bag is filled with liquid.

6. A steel bar on-site detection device for construction project acceptance according to claim 1, characterized in that: The driving member comprises a hydraulic cylinder, which is connected to the base and the cylinder.

7. A steel bar on-site detection device for construction project acceptance according to claim 6, characterized in that: Two hydraulic cylinders are provided, and in an initial state, the projections of the two hydraulic cylinders on the base are perpendicular to each other.

8. A steel bar on-site detection device for construction project acceptance according to claim 6, characterized in that: The hydraulic cylinder is rotatably mounted on the base, and the output end of the hydraulic cylinder is articulated with a cylinder ball.

9. A steel bar on-site detection device for construction project acceptance according to claim 1, characterized in that: A plurality of clearance holes are arranged on the base, and the plurality of clearance holes are evenly distributed around the first direction on the base.

10. The on-site steel bar detection device for construction project acceptance according to claim 1, characterized in that: The adjusting housing and the base are connected by bolts.

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