Building embedded steel bar drilling depth measuring device

Abstract

The utility model discloses a building embedded steel bar drilling depth measuring device which comprises a depth measuring rod, a comparison supporting rod, a position measuring sleeve, a fixing cylinder and a limiting cylinder. The top end of the depth measuring rod is inserted into an embedded steel bar hole so as to measure the depth of the embedded steel bar hole; the bottom end of the depth measuring rod is connected with a comparison supporting rod, a first fixing plate is arranged at the joint of the depth measuring rod and the comparison supporting rod, first sliding grooves are symmetrically formed in the side, close to the first fixing plate, of the comparison supporting rod, the comparison supporting rod is sleeved with a position measuring sleeve, and a first sliding way barrel is arranged on the side, away from the first fixing plate, of the interior of the position measuring sleeve. The depth measurement of the steel bar planting hole is realized by moving the position of the positioning and position measuring sleeve, taking out the depth measuring rod in the steel bar planting hole and penetrating the depth of the depth measuring rod, the depth value of the steel bar planting hole can be read, the steel bar planting hole at a relatively high position is conveniently monitored, and the depth value is quickly obtained, so that the standard reaching condition of the steel bar planting hole is evaluated.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, specifically to a device for measuring the drilling depth of rebar anchoring in buildings. Background Technology

[0002] The main steps of rebar installation include construction preparation, drilling, hole cleaning, adhesive injection, rebar insertion, curing, and quality inspection. Drilling requirements for rebar installation include: a diameter 4-6mm larger than the rebar diameter, a depth 10-15 times the rebar diameter (generally ≥15d), and a verticality deviation ≤5°. Before rebar installation, the depth of the installation holes needs to be monitored. Only qualified holes can be injected with adhesive and rebar inserted. Unqualified holes require secondary drilling.

[0003] Currently, monitoring the depth of rebar holes is convenient within a certain height range. However, for rebar holes at higher heights, auxiliary tools are needed to increase the height for accurate depth measurement. This results in the need for specialized auxiliary tools, which increases the amount of tools required on the construction site, reduces construction efficiency, and makes it impossible to quickly monitor the depth of rebar holes, such as the depth of rebar holes in the upper part of beams and columns.

[0004] As disclosed in the prior art, publication number CN217330995U, a depth inspection device for drilling holes for rebar installation in construction includes a handle. A measuring rod is fixedly connected to one end of the outer wall of the handle by welding. Measuring mechanisms are distributed inside the handle and outside and inside the measuring rod. The measuring mechanism includes a fixed baffle, a telescopic spring, a spur gear, a fixed stop, a locking tooth, and a measuring cylinder. The telescopic spring is fixedly connected to one end of the outer wall of the handle by welding and is sleeved on the outer wall of the measuring rod. The measuring cylinder is slidably sleeved inside the measuring rod and extends to the outer wall. The locking tooth is fixedly connected to the inside of the measuring cylinder by welding and extends to the outer wall. The fixed baffle is disposed on the outer wall of the measuring rod. The spur gear is rotatably connected to the inside of the handle via a rotating shaft. The fixed stop is slidably sleeved inside the handle and extends to the outer wall.

[0005] Therefore, a device for measuring the drilling depth of rebar installation in buildings is needed. Utility Model Content

[0006] In view of the problems existing in the prior art, the present invention provides a device for measuring the drilling depth of rebar installation in buildings, with the aim of solving the aforementioned technical problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a device for measuring the drilling depth of rebar anchoring holes, comprising a depth measuring rod, a comparison support rod, a measuring sleeve, a fixing sleeve, and a limiting sleeve. The top end of the depth measuring rod is inserted into the rebar anchoring hole to measure its depth. The bottom end of the depth measuring rod is connected to the comparison support rod, and a fixing plate is provided at the connection point. A sliding groove is symmetrically provided on the side of the comparison support rod near the fixing plate. The measuring sleeve is sleeved onto the outside of the comparison support rod, and the inside of the measuring sleeve is far from the fixing plate. A slide cylinder is provided on one side of the plate. Slider 1 is symmetrically provided on both sides of the end of slide cylinder 1. Slider 1 slides with slide groove 1. A return spring is provided between the end face of slide cylinder 1 and fixed plate 1. The return spring is sleeved on the comparison support rod. A fixed cylinder and a limiting cylinder are provided on one side of the bottom of the comparison support rod. An operating rod is threaded on the bottom of the fixed cylinder. A limiting hole is opened in the axial extension direction of the measuring sleeve in the limiting cylinder. The limiting hole extends into the interior of slide cylinder 1. An operating rod is threaded on the interior of the limiting cylinder and the limiting hole.

[0008] Preferably, the measuring sleeve is located on the side where the slide tube is set, and a fixing tube and a limiting tube are provided at the bottom.

[0009] Preferably, the top of the first operating lever is provided with a threaded post protrusion, and the top of the second operating lever is provided with a threaded post limiting rod.

[0010] Preferably, the support rod is configured as a polygonal structure.

[0011] Preferably, the surfaces of the depth measuring rod and the comparison support rod are provided with a size scale, and the dimensions on the size scale are all set to decrease in one direction.

[0012] Preferably, a friction grip glove is provided at the end of the comparison support rod away from the depth measuring rod.

[0013] In summary, this utility model provides a device for measuring the depth of rebar drilling in buildings. The device involves an operating rod 1 pushing a measuring sleeve towards the rebar hole. After the end face of the measuring sleeve is in contact with the beam / column surface, the measuring sleeve remains in contact with the beam / column surface. The operating rod 2 is then rotated, causing its top thread to pass through the limiting cylinder and extend into the interior of the slide cylinder 1. The top of the operating rod 2 is then positioned against the limiting support rod. At this point, the measuring sleeve is positioned, and the depth measuring rod in the rebar hole is removed. The depth of the rebar hole is measured by the depth of the measuring rod.

[0014] The remaining distance of the depth measuring rod inserted into the rebar hole is the scale distance by which the measuring sleeve slides on the comparison support rod. The depth value of the rebar hole is the value of the scale by which the measuring sleeve slides on the comparison support rod. This allows the depth value of the rebar hole to be read immediately after the depth measuring rod is inserted into the rebar hole, enabling convenient monitoring of rebar holes at higher positions and quick acquisition of depth values ​​to evaluate the compliance of the rebar hole. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the building rebar drilling depth measuring device of this utility model;

[0016] Figure 2 This is a structural cross-sectional diagram of the building rebar drilling depth measuring device of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the measuring sleeve of this utility model;

[0018] In the diagram: 1. Depth measuring rod; 2. Comparison support rod; 3. Measuring sleeve; 4. Fixing sleeve; 5. Limiting sleeve; 6. Fixing plate 1; 7. Slide groove 1; 11. Slide cylinder 1; 12. Slider 1; 13. Return spring; 14. Operating rod 1; 15. Limiting hole 1; 16. Operating rod 2; 17. Threaded column protrusion; 21. Threaded column limiting rod; 22. Friction handle glove. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] like Figures 1 to 3 As shown:

[0021] This utility model relates to a device for measuring the drilling depth of rebar installation in construction. It includes a depth measuring rod 1, a comparison support rod 2, a measuring sleeve 3, a fixing sleeve 4, and a limiting sleeve 5. The top end of the depth measuring rod 1 is inserted into the rebar hole to measure its depth. The bottom end of the depth measuring rod 1 is connected to the comparison support rod 2, and a fixing plate 6 is provided at the connection point. A sliding groove 7 is symmetrically formed on the side of the comparison support rod 2 closest to the fixing plate 6. The measuring sleeve 3 is sleeved onto the outside of the comparison support rod 2. A sliding track 11 is provided on the inside of the measuring sleeve 3 away from the fixing plate 6. Slider 12 is symmetrically arranged on both sides of the end of 11. Slider 12 slides with slide groove 7. Return spring 13 is arranged between the end face of slide cylinder 11 and fixed plate 6. Return spring 13 is sleeved on the comparison support rod 2. Fixed cylinder 4 and limiting cylinder 5 are arranged on one side of the bottom of comparison support rod 2. Operating rod 14 is threaded on the bottom of fixed cylinder 4. Limiting hole 15 is opened in the axial extension direction of limiting cylinder 5 of measuring sleeve 3. Limiting hole 15 extends into the interior of slide cylinder 11. Operating rod 2 16 is threaded on the interior of limiting cylinder 5 and limiting hole 15.

[0022] To address the limitation on the height of borehole depth measurement in existing technologies, this invention employs the following structure: a comparison support rod 2 is installed at the bottom of the depth measuring rod 1; a fixed plate 6 connects the comparison support rod 2 and the depth measuring rod 1; symmetrical grooves 7 are arranged on both sides of the comparison support rod 2; a measuring sleeve 3 is sleeved on the outside of the comparison support rod 2; a slide cylinder 11 is installed on the side of the measuring sleeve 3 away from the depth measuring rod 1, with the inner diameter of the slide cylinder 11 being smaller than that of the measuring sleeve 3; a slider 12 is installed at the end of the slide cylinder 11, sliding with the groove 7 to limit the sliding direction of the measuring sleeve 3; and a return spring 13 is installed between the end face of the slide cylinder 11 and the fixed plate 6, sleeved on the comparison support rod 2, allowing the measuring sleeve 3 to push and compress the return spring 13, thus inserting the depth measuring rod 1 into the borehole. The probe continues to advance into the hole to increase the measurement of the actual depth of the rebar hole. A fixed cylinder 4 and a limiting cylinder 5 are set on one side of the bottom of the support rod 2. The bottom of the fixed cylinder 4 is threadedly connected to the operating rod 14. The bottom of the limiting cylinder 5 is set as the operating rod 2 16. The axial direction of the limiting cylinder 5 passes through the measuring sleeve 3 and extends into the interior of the slide cylinder 11. When measuring the depth of the rebar hole, the operating rod 14 pushes the measuring sleeve 3 to move towards the rebar hole. After the end face of the measuring sleeve 3 is in contact with the beam and column surface, the measuring sleeve 3 is kept in contact with the beam and column surface. The operating rod 2 16 is rotated so that the top thread of the operating rod 2 16 passes through the limiting cylinder 5 and extends into the interior of the slide cylinder 11. The top of the operating rod 2 16 is in contact with the support rod 2 and is limited. At this time, the moving position of the measuring sleeve 3 is located. The depth measuring rod 1 in the rebar hole is taken out and the depth of the depth measuring rod 1 is measured to realize the depth measurement of the rebar hole.

[0023] In at least one embodiment, in order to achieve the positioning operation after the measuring sleeve 3 is moved, a fixing cylinder 4 and a limiting cylinder 5 are provided at the bottom of the measuring sleeve 3 on the side section where the slide cylinder 11 is set, so that the top of the operating rod 16 abuts against the bottom surface of the support rod 2, thereby achieving the positioning of the measuring sleeve 3 after it is moved, so as to accurately measure the depth of the rebar hole.

[0024] In at least one embodiment, to facilitate the movement of the measuring sleeve 3, a threaded protrusion 17 is provided on the top of the operating rod 14. The threaded protrusion 17 is threadedly installed with the fixed cylinder 4. To enable the positioning operation after the measuring sleeve 3 has moved, a threaded limiting rod 21 is provided on the top of the operating rod 16. The threaded limiting rod 21 is threaded through the limiting cylinder 5 and extends into the interior of the slide cylinder 11, so that the top surface of the threaded limiting rod 21 abuts against the bottom surface of the comparison support rod 2, thereby positioning the measuring sleeve 3 after movement for accurate depth scale reading.

[0025] In at least one embodiment, in order to limit the pushing direction of the measuring sleeve 3, the comparison support rod 2 is set as a polygonal structure to limit the pushing direction of the measuring sleeve 3.

[0026] In at least one embodiment, a scale is provided on one side of the bottom of the depth measuring rod 1 and the comparison support rod 2, and the dimensions on the scale are all set to decrease in one direction. The reading range of the scale on the depth measuring rod 1 and the comparison support rod 2 is consistent. Specifically, the scale distance that the measuring sleeve 3 slides out on the comparison support rod 2 is the remaining scale distance of the depth measuring rod 1 to the rebar hole. By reading the scale value of the measuring sleeve 3 sliding on the comparison support rod 2, the depth value of the rebar hole can be measured. This allows the depth value of the rebar hole to be read immediately after the depth measuring rod 1 is inserted into the rebar hole, enabling convenient monitoring of the rebar hole at a higher position and quick acquisition of the depth value to evaluate the compliance of the rebar hole.

[0027] In at least one embodiment, this utility model patent can also be applied to the monitoring of rebar holes at lower positions. By disassembling the first operating rod 14 and the second operating rod 16, a friction handle glove 22 is provided at the end of the comparison support rod 2 away from the depth measuring rod 1. The friction handle glove 22 is used to push the measuring sleeve 3 to abut against the surface of the beam and column, and the scale of the size ruler is observed to realize the depth measurement, monitoring and evaluation of the rebar hole.

[0028] The embodiments described in this utility model are for illustrative purposes only and do not constitute a limitation on the scope of the claims. Other substantially equivalent substitutions that can be conceived by those skilled in the art are all within the protection scope of this utility model.

Claims

1. A device for measuring the drilling depth of rebar anchoring in buildings, characterized in that, The device includes a depth measuring rod (1), a comparison support rod (2), a measuring sleeve (3), a fixing sleeve (4), and a limiting sleeve (5). The top end of the depth measuring rod (1) is inserted into the anchor hole to measure the depth of the anchor hole. The bottom end of the depth measuring rod (1) is connected to the comparison support rod (2), and a fixing plate (6) is provided at the connection point with the comparison support rod (2). A sliding groove (7) is symmetrically opened on the side of the comparison support rod (2) near the fixing plate (6). The measuring sleeve (3) is sleeved on the outside of the comparison support rod (2). A sliding cylinder (11) is provided on the side of the measuring sleeve (3) away from the fixing plate (6). Sliding grooves (7) are symmetrically arranged on both sides of the end of the sliding cylinder (11). Block 1 (12), slider 1 (12) and slide groove 1 (7) are slidably set. A return spring (13) is set between the end face of slide cylinder 1 (11) and fixed plate 1 (6). The return spring (13) is sleeved on the comparison support rod (2). A fixed cylinder (4) and a limiting cylinder (5) are set on one side of the bottom of the comparison support rod (2). An operating rod 1 (14) is threaded on the bottom of the fixed cylinder (4). A limiting hole 1 (15) is opened in the axial extension direction of the limiting cylinder (5). The limiting hole 1 (15) extends into the interior of slide cylinder 1 (11). An operating rod 2 (16) is threaded on the interior of the limiting cylinder (5) and the limiting hole 1 (15).

2. The device for measuring the drilling depth of rebar installation in construction according to claim 1, characterized in that, The measuring sleeve (3) is located on the side where the slide tube (11) is set, and the bottom is provided with a fixed tube (4) and a limiting tube (5).

3. The device for measuring the drilling depth of rebar anchoring in construction according to claim 1, characterized in that, The top of the first operating lever (14) is provided with a threaded column protrusion (17), and the top of the second operating lever (16) is provided with a threaded column limiting rod (21).

4. The device for measuring the drilling depth of rebar anchoring in construction according to claim 1, characterized in that, The support rod (2) is set as a polygonal structure.

5. The device for measuring the drilling depth of rebar anchoring in construction according to claim 1, characterized in that, The surfaces of the depth measuring rod (1) and the comparison support rod (2) are provided with a size scale, and the size scale is set in a decreasing direction.

6. The device for measuring the drilling depth of rebar anchoring in construction according to claim 1, characterized in that, A friction handle glove (22) is provided at the end of the support rod (2) away from the depth measuring rod (1).

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