Portable steel bar position measuring instrument

Abstract

The utility model discloses a portable steel bar position measuring appearance relates to engineering detection technical field, including the outer tube, the outer tube bottom is equipped with the outer tube base, the outer tube outer wall bottom is equipped with the mounting mechanism, is equipped with the appearance main part on the mounting mechanism, the inside of outer tube is equipped with the inner tube, the inner tube inner wall is equipped with the limit slot, the inner tube inner wall still is equipped with the rack, the outer wall top of inner tube is installed with the connecting rod, the other end of connecting rod is installed with the connecting plate, the connecting plate is installed with the mounting plate, the mounting plate is installed with the probe, the inside of inner tube still is equipped with the rotation mechanism and elevating system for making the inner tube movement. In the utility model, through set up elevating system and rotating mechanism, can realize the height and angle adjustment of probe, is convenient to the wall body of different height and carries out the detection, improves the use range.

Description

Technical Field

[0001] This utility model relates to the field of engineering testing technology, specifically a portable rebar position measuring instrument. Background Technology

[0002] The rebar position measuring instrument is an engineering testing instrument. This instrument can be used to inspect the construction quality of existing reinforced concrete projects and newly built reinforced concrete structures. It can determine the position, direction and arrangement of rebars. In the existing technology, the rebar position measuring instrument for building walls is not convenient for testing walls at high altitudes, and it is not convenient for use at different angles.

[0003] Existing patent CN220366231U describes a method for determining the location of reinforcing steel bars in building walls. It includes a support mechanism, a measuring instrument body, and a probe. The measuring instrument body is equipped with a display and buttons. The support mechanism includes a sleeve with a handle fixedly installed at its bottom end. The measuring instrument body is mounted on the outer surface of the sleeve via a mounting mechanism. A support rod is slidably installed inside the sleeve. An angle adjustment mechanism is provided on the side of the sleeve, comprising an outer cylinder rotatably mounted on the sleeve and an inner rod rotatably mounted on the support rod. By using the sleeve and support rod, and by adjusting the length of the support rod extending beyond the sleeve through its sliding motion within the sleeve, the probe can be moved synchronously as the support rod moves. This allows for height adjustment of the probe, facilitating the detection of walls at different heights and expanding its application range.

[0004] However, this device has certain drawbacks. The locking mechanism between the insertion rod and the slot relies on the elastic force of the locking spring. After long-term use, the spring may fatigue and fail, causing the support rod to loosen during the testing process and affecting the testing accuracy. Furthermore, adjusting the height requires first pulling the pull plate to unlock the insertion rod, then moving the support rod and finally releasing the pull plate to lock it. This operation requires both hands, making it inconvenient for use at heights or in confined spaces. The existing patent uses a bevel gear transmission structure, whose angle adjustment range is limited by the gear meshing angle, making it difficult to achieve continuous 360° omnidirectional adjustment without dead spots, and thus unsuitable for testing complex wall structures (such as curved walls and internal / external corners).

[0005] Based on this, a portable rebar position measuring instrument is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0006] The purpose of this invention is to provide a portable rebar position measuring instrument to solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A portable rebar position measuring instrument includes an outer cylinder with an outer cylinder base at its bottom and an installation mechanism at the bottom of the outer wall of the outer cylinder. The measuring instrument body is mounted on the installation mechanism. An inner cylinder is located inside the outer cylinder, with a limiting groove on its inner wall and a rack on its inner wall. A connecting rod is mounted on the top of the outer wall of the inner cylinder, with a connecting plate mounted on the other end of the connecting rod. An installation plate is mounted on the connecting plate, and a probe is mounted on the installation plate. The inner cylinder also has a rotating mechanism and a lifting mechanism for moving the inner cylinder.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative embodiment: the rotating mechanism includes a rotating cylinder disposed inside the inner cylinder, a rotating cylinder base at the bottom of the rotating cylinder, a rotating platform at the top of the rotating cylinder, a limiting plate on the side of the rotating platform, the limiting plate engaging with a limiting groove on the inner wall of the inner cylinder, a bracket at the top of the rotating platform, a rotating shaft on the bracket, a worm gear in the middle of the rotating shaft, and gears coaxially disposed on both sides of the worm gear.

[0011] In one alternative embodiment: the lifting mechanism includes a rotating rod disposed inside a rotating drum, a rotating rod base at the bottom of the rotating rod, a worm gear at the top of the rotating rod, the worm gear meshing with a worm wheel, and the gear meshing with a rack.

[0012] In one alternative: the bottom of the worm gear is higher than the top of the rotating platform, and the diameter of the rotating platform is smaller than the inner diameter of the inner cylinder.

[0013] In one alternative: the installation mechanism includes a clamp, on which a telescopic rod is mounted, and clamps are provided on both sides of the telescopic rod, with a spring connecting the clamps.

[0014] In one alternative: the mounting plate has holes, the probe is connected to a connecting wire, and the other end of the connecting wire passes through the holes and connects to the main body of the measuring instrument.

[0015] In one alternative: the bottom of the rotating drum base of the rotating mechanism is provided with a rotation control rocker arm, which can be folded and stored in the groove at the bottom of the rotating drum base.

[0016] In one alternative: the bottom of the rotating rod base of the lifting mechanism is provided with a lifting control rocker arm, which is detachably connected to the rotating rod base.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model achieves continuous 360° rotation adjustment of the probe without dead spots by setting a rotating mechanism (rotating cylinder, limiting plate and limiting groove cooperation), which completely overcomes the defect of limited angle of bevel gear transmission in the background technology. It can flexibly adapt to the detection needs of complex wall structures such as curved walls and internal and external corners, and significantly improve the measurement adaptability.

[0019] 2. This utility model, through the setting of a lifting mechanism (worm gear-worm wheel-rotating shaft-gear-rack transmission), achieves mechanical self-locking while adjusting the height. It abandons the easily failing spring locking structure and utilizes the reverse self-locking characteristics of the worm gear to ensure the probe is stably locked at any height, eliminating accuracy deviations caused by loose support components during testing. Furthermore, lifting and lowering can be completed with a single-handed operation of the joystick, solving the pain point of inconvenient two-handed operation at heights and in confined spaces.

[0020] 3. This utility model integrates the rotating mechanism and the lifting mechanism into a nested cylindrical structure (outer cylinder-inner cylinder-rotating cylinder), and uses independent rocker control to achieve completely decoupled operation of height and angle adjustment. The structure is compact and portable, and the adjustment processes do not interfere with each other. Users can quickly and accurately position the probe according to their testing needs, significantly improving on-site testing efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a partial cross-sectional top view of the present invention.

[0023] Figure 3 This is a partial cross-sectional structural diagram of the present invention.

[0024] Figure 4 This is a partial cross-sectional top view of the present invention.

[0025] Figure 5 This is a bottom cross-sectional view of the structure of this utility model.

[0026] Figure 6 This is a schematic diagram of the installation mechanism of this utility model.

[0027] Figure reference numerals: 1. Outer cylinder; 101. Outer cylinder base; 2. Inner cylinder; 201. Limiting groove; 202. Rack; 3. Rotating cylinder; 301. Rotating cylinder base; 302. Rotating table; 303. Limiting plate; 304. Bracket; 305. Rotating shaft; 306. Worm gear; 307. Gear; 308. Rotation control rocker arm; 4. Rotating rod; 401. Rotating rod base; 402. Worm gear; 403. Lifting control rocker arm; 5. Mounting mechanism; 501. Hoop; 502. Telescopic rod; 503. Clamping plate; 504. Spring; 6. Measuring instrument body; 7. Probe; 701. Connecting rod; 702. Connecting plate; 703. Mounting plate; 704. Connecting wire. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] In one embodiment, such as Figures 1-6 As shown, a portable rebar position measuring instrument includes an outer cylinder 1, an outer cylinder base 101 at the bottom of the outer cylinder 1, an installation mechanism 5 at the bottom of the outer wall of the outer cylinder 1, a measuring instrument body 6 mounted on the installation mechanism 5, an inner cylinder 2 inside the outer cylinder 1, a limiting groove 201 on the inner wall of the inner cylinder 2, a rack 202 on the inner wall of the inner cylinder 2, a connecting rod 701 mounted on the top of the outer wall of the inner cylinder 2, a connecting plate 702 mounted on the other end of the connecting rod 701, an installation plate 703 mounted on the connecting plate 702, a probe 7 mounted on the installation plate 703, and a rotating mechanism and a lifting mechanism for moving the inner cylinder 2 inside the inner cylinder 2.

[0030] In this embodiment, when the height of the probe 7 needs to be adjusted, the inner cylinder 2 can be moved up and down using a lifting mechanism, which in turn moves the probe 7 up and down. When the angle of the probe 7 needs to be adjusted, the inner cylinder 2 can be rotated using a rotating mechanism, which in turn rotates the probe 7. In use, the probe 7 is moved to a suitable position, and the mounting plate 703 is driven by the connecting plate 702 to move the probe 7, ensuring that the probe 7 is in contact with the wall for detection.

[0031] In one embodiment, such as Figure 2 and Figure 3As shown, the rotating mechanism includes a rotating cylinder 3 disposed inside the inner cylinder 2. The bottom of the rotating cylinder 3 is provided with a rotating cylinder base 301, and the top of the rotating cylinder 3 is provided with a rotating platform 302. The side of the rotating platform 302 is provided with a limiting plate 303, which is fitted into a limiting groove 201 on the inner wall of the inner cylinder 2. The top of the rotating platform 302 is provided with a bracket 304, and a rotating shaft 305 is provided on the bracket 304. A worm gear 306 is provided in the middle of the rotating shaft 305, and gears 307 are coaxially provided on both sides of the worm gear 306. Through the cooperation of the rotating cylinder, the limiting plate and the limiting groove, the probe can be continuously rotated and adjusted 360° without dead spots.

[0032] In one embodiment, such as Figure 2 and Figure 3 As shown, the lifting mechanism includes a rotating rod 4 disposed inside the rotating drum 3. The bottom of the rotating rod 4 is provided with a rotating rod base 401, and the top of the rotating rod 4 is provided with a worm gear 402. The worm gear 402 meshes with a worm wheel 306, and the gear 307 meshes with a rack 202. Through the mutual cooperation of the worm gear, worm wheel, rotating shaft, gear and rack, mechanical self-locking is achieved while adjusting the height.

[0033] In one embodiment, such as Figure 3 and Figure 4 As shown, the bottom of the worm gear 402 is higher than the top of the rotating platform 302, and the diameter of the rotating platform 302 is smaller than the inner diameter of the inner cylinder 2 to avoid interference between lifting and rotating movements.

[0034] In one embodiment, such as Figure 6 As shown, the installation mechanism 5 includes a clamp 501, on which a telescopic rod 502 is installed. Clamping plates 503 are provided on both sides of the telescopic rod 502, and a spring 504 is connected between the clamping plates 503. The installation mechanism can firmly fix the main body 6 of the detector to the bottom of the outer wall of the outer cylinder 1.

[0035] In one embodiment, such as Figure 2 and Figure 3 As shown, the mounting plate 703 has holes, and the probe 7 is connected to a connecting wire 704. The other end of the connecting wire 704 passes through the holes and connects to the main body 6 of the measuring instrument. The probe 7 and the main body 6 of the measuring instrument are connected by the connecting wire 704, which is simple and easy to assemble and disassemble.

[0036] In one embodiment, such as Figure 5 As shown, the rotating mechanism has a rotating control rocker arm 308 at the bottom of the rotating cylinder base 301. The rotating control rocker arm 308 can be folded and stored in the groove at the bottom of the rotating cylinder base 301. Shaking the rotating control rocker arm 308 can easily rotate the inner cylinder 2, and the rotation of the inner cylinder 2 can drive the probe 7 to rotate.

[0037] In one embodiment, such as Figure 5As shown, the bottom of the rotating rod base 401 of the lifting mechanism is provided with a lifting control rocker 403. The lifting control rocker 403 is detachably connected to the rotating rod base 401. By rocking the lifting control rocker 403, the inner cylinder 2 can be easily lifted and lowered. The lifting and lowering of the inner cylinder 2 can drive the probe 7 to lift and lower.

[0038] The above embodiment discloses a portable rebar position measuring instrument. When the height of the probe 7 needs adjustment, the lifting control rocker 403 is cranked to rotate the rotating rod 4. The rotation of the rotating rod 4 drives the worm gear 402 to rotate, which in turn drives the worm wheel 306 to rotate. The worm wheel 306 then moves the rack 202, which in turn moves the inner cylinder 2. When the angle of the probe 7 needs adjustment, the rotation control rocker 308 is cranked to rotate the rotating cylinder base 301. The rotation of the rotating cylinder base 301 drives the rotating cylinder 3 to rotate, which in turn drives the rotating platform 302 to rotate. The rotating platform 302 then drives the limiting plate 303 to rotate, which in turn drives the inner cylinder 2 to rotate. In use, the probe 7 is moved to a suitable position, and the connecting plate 702 drives the mounting plate 703 to move the probe 7, ensuring that the probe 7 is in contact with the wall for detection. By rocking the lifting control lever 403 and rotating the control lever 308, the height and angle of the probe can be adjusted, making it easier to inspect walls of different heights and expanding its application range.

[0039] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A portable rebar position measuring instrument, comprising an outer cylinder (1), wherein the bottom of the outer cylinder (1) is provided with an outer cylinder base (101), characterized in that, The outer cylinder (1) has an installation mechanism (5) at the bottom of its outer wall. The main body (6) of the measuring instrument is installed on the installation mechanism (5). The outer cylinder (1) has an inner cylinder (2) inside. The inner wall of the inner cylinder (2) has a limiting groove (201). The inner wall of the inner cylinder (2) also has a rack (202). The top of the outer wall of the inner cylinder (2) has a connecting rod (701). The other end of the connecting rod (701) has a connecting plate (702). The connecting plate (702) has an installation plate (703). The installation plate (703) has a probe (7). The inner cylinder (2) also has a rotating mechanism and a lifting mechanism for moving the inner cylinder (2).

2. The portable rebar position measuring instrument according to claim 1, characterized in that, The rotating mechanism includes a rotating cylinder (3) disposed inside the inner cylinder (2). The bottom of the rotating cylinder (3) is provided with a rotating cylinder base (301). The top of the rotating cylinder (3) is provided with a rotating platform (302). The side of the rotating platform (302) is provided with a limiting plate (303). The limiting plate (303) is fitted with a limiting groove (201) on the inner wall of the inner cylinder (2). The top of the rotating platform (302) is provided with a bracket (304). The bracket (304) is provided with a rotating shaft (305). The middle part of the rotating shaft (305) is provided with a worm gear (306). The worm gear (306) is coaxially provided with gears (307) on both sides.

3. The portable rebar position measuring instrument according to claim 2, characterized in that, The lifting mechanism includes a rotating rod (4) disposed inside the rotating drum (3), a rotating rod base (401) at the bottom of the rotating rod (4), a worm (402) at the top of the rotating rod (4), the worm (402) meshing with a worm wheel (306), and the gear (307) meshing with a rack (202).

4. A portable rebar position measuring instrument according to claim 3, characterized in that, The bottom of the worm gear (402) is higher than the top of the rotating platform (302), and the diameter of the rotating platform (302) is smaller than the inner diameter of the inner cylinder (2).

5. A portable rebar position measuring instrument according to claim 1, characterized in that, The installation mechanism (5) includes a clamp (501), on which a telescopic rod (502) is installed. Clamping plates (503) are provided on both sides of the telescopic rod (502), and a spring (504) is connected between the clamping plates (503).

6. A portable rebar position measuring instrument according to claim 1, characterized in that, The mounting plate (703) has a hole, and the probe (7) is connected to a connecting wire (704). The other end of the connecting wire (704) passes through the hole and connects to the main body (6) of the measuring instrument.

7. A portable rebar position measuring instrument according to claim 2, characterized in that, The rotating mechanism has a rotating control rocker arm (308) at the bottom of the rotating base (301), which can be folded and stored in the groove at the bottom of the rotating base (301).

8. A portable rebar position measuring instrument according to claim 3, characterized in that, The bottom of the rotating rod base (401) of the lifting mechanism is provided with a lifting control rocker (403), which is detachably connected to the rotating rod base (401).

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