Portable steel bar position tester

Abstract

The utility model relates to the technical field of reinforcing steel bar position detection, in particular to a portable reinforcing steel bar position determinator which comprises an ultrasonic detector body, and a detection probe is arranged on one side of the ultrasonic detector body; the angle adjusting assembly is used for adjusting the detection direction of the ultrasonic detector body; the first length adjusting assembly and the second length adjusting assembly are used for increasing the length of the ultrasonic detector body, the length of the ultrasonic detector body is roughly adjusted through the first length adjusting assembly, and the length of the ultrasonic detector body is finely adjusted through the second length adjusting assembly. According to the utility model, the second casing pipe can be stored in the first casing pipe through one key, the size of the device is greatly reduced, the whole structure is compact, the operation is convenient, on-site multi-angle flexible detection is facilitated, the device can be quickly contracted and stored after being used, and the carrying convenience and the working efficiency are effectively improved.

Description

Technical Field

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

[0002] In the field of building construction quality inspection, accurate detection of the location of reinforcing bars and the thickness of the protective layer is a key step in assessing the safety of concrete structures.

[0003] Currently, most measuring instruments have fixed probe angles, making it difficult to adapt to the multi-angle testing needs of complex structures such as walls, ceilings, and columns. This necessitates frequent adjustments to the equipment's posture or the use of auxiliary tools, reducing testing efficiency. Furthermore, non-extendable measuring instruments result in large equipment sizes, requiring specialized toolboxes for transport and increasing the burden of on-site operations. While some instruments do have length adjustment functions, they often employ a single coarse adjustment mode, lacking sufficient accuracy or reliable locking. Therefore, a portable rebar position measuring instrument is urgently needed to solve these problems. Utility Model Content

[0004] In view of the shortcomings of the prior art mentioned in the background section, this utility model provides a portable rebar position measuring instrument.

[0005] This utility model overcomes the above technical problems by adopting the following technical solution:

[0006] Portable rebar position measuring instrument, including:

[0007] The ultrasonic testing instrument body has a testing probe installed on one side.

[0008] Angle adjustment component used to adjust the detection orientation of the ultrasonic testing instrument body;

[0009] A first length adjustment component and a second length adjustment component are used to increase the length of the ultrasonic detector body. The first length adjustment component is used to coarsely adjust the length of the ultrasonic detector body, and the second length adjustment component is used to finely adjust the length of the ultrasonic detector body.

[0010] An unlocking component for storing the first length adjustment component.

[0011] As a further embodiment of this utility model: the angle adjustment assembly includes a rotating seat fixedly connected to one side of the ultrasonic detector body. A rotating shaft is rotatably connected to both inner walls of the rotating seat. A fixing screw is fixedly connected to one end of the rotating shaft. A disc is fixedly connected to one end of the fixing screw and one end of the rotating shaft. A disc abuts against one outer wall of the rotating seat. A fixing nut is threaded onto the outer circumference of the fixing screw. A fixing lug is fixedly connected to the outer circumference of the rotating shaft.

[0012] As a further embodiment of this utility model: the first length adjustment component includes a first sleeve fixedly connected to one end of the fixed ear, a second sleeve inserted inside the first sleeve, and a locking head fixedly connected to one end of the second sleeve, the diameter of the locking head being larger than the diameter of the second sleeve.

[0013] As a further embodiment of this utility model: a circular groove is provided inside the locking head, a spring is fixedly connected to one inner wall of the circular groove, and a locking pin is fixedly connected to the other end of the spring. The cross-section of the locking pin is T-shaped. A through hole is provided on the outer circumference of the locking head, and the through hole communicates with the circular groove. A locking hole is provided on the outer circumference of the first sleeve to cooperate with the locking pin, and the locking hole communicates with the through hole.

[0014] As a further embodiment of this utility model: the second length adjustment component includes a threaded groove formed inside the second sleeve, and the second sleeve is threadedly connected to a threaded rod through the threaded groove.

[0015] As a further embodiment of this utility model: a handle is fixedly connected to one end of the threaded rod, and a limit block is fixedly connected to the end of the threaded rod away from the handle.

[0016] As a further embodiment of this utility model: the unlocking component includes an outer ring tube fixedly connected to the outer circumferential wall of the first sleeve, a pressing post inserted into the outer circumferential wall of the outer ring tube, the pressing post having the same axis as the locking post, and a first limiting plate and a second limiting plate fixedly connected to the outer circumferential wall of the pressing post respectively, the distance between the first limiting plate and the outer ring tube being the same as the depth of the locking hole.

[0017] With the above structure, this utility model has the following advantages compared with the prior art: the multi-angle adjustment and dual length adjustment structure design significantly improves the portability of the equipment. At the same time, the angle adjustment component can quickly adjust the position of the detection probe and lock it by loosening / tightening the fixing nut, adapting to different spatial detection needs.

[0018] The first length adjustment component uses a spring-loaded locking mechanism to achieve coarse length adjustment and quick locking, while the second length adjustment component uses a threaded rod to achieve millimeter-level fine adjustment to meet the accuracy requirements of different detection distances. At the same time, the unlocking component pushes the locking pin out of the locking hole by pressing the pin, allowing the second sleeve to be retracted into the first sleeve with one click, which greatly reduces the size of the equipment. The overall structure is compact and easy to operate, which is not only convenient for flexible multi-angle detection on site, but also can be quickly retracted and stored after use, effectively improving portability and work efficiency. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the overall front structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the overall rear structure of this utility model.

[0021] Figure 3 This is a partial cross-sectional view of the first and second length adjustment components of this utility model.

[0022] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0023] Figure 5 This utility model Figure 3 A magnified structural diagram at point B in the middle.

[0024] In the diagram: 1. Ultrasonic detector body; 2. Detection probe; 3. Angle adjustment assembly; 3001. Disc; 3002. Fixing screw; 3003. Fixing nut; 3004. Fixing lug; 3005. Rotating seat; 4. First length adjustment assembly; 4001. First sleeve; 4002. Second sleeve; 4003. Locking head; 4004. Locking post; 4005. Circular groove; 4006. Through hole; 4007. Locking hole; 4008. Spring; 5. Unlocking assembly; 5001. Outer ring tube; 5002. Pressing post; 5003. First limiting plate; 5004. Second limiting plate; 6. Second length adjustment assembly; 6001. Threaded rod; 6002. Handle; 6003. Threaded groove; 6004. Limiting block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 In this embodiment of the utility model, the portable rebar position measuring instrument includes:

[0027] The ultrasonic testing instrument body 1 has a testing probe 2 installed on one side.

[0028] Angle adjustment component 3 is used to adjust the detection orientation of the ultrasonic detector body 1;

[0029] The first length adjustment component 4 and the second length adjustment component 6 are used to increase the length of the ultrasonic detector body 1. The first length adjustment component 4 is used to coarsely adjust the length of the ultrasonic detector body 1, and the second length adjustment component 6 is used to finely adjust the length of the ultrasonic detector body 1.

[0030] The unlocking component 5, used to store the first length adjustment component 4, can significantly reduce the size of the device. It has a compact overall structure and is easy to operate. It is convenient for flexible multi-angle testing on site and can be quickly retracted and stored after use, effectively improving portability and work efficiency.

[0031] Preferably, the angle adjustment component 3 includes a rotating seat 3005 fixedly connected to one side of the ultrasonic detector body 1. Rotary shafts are rotatably connected to the inner walls of both sides of the rotating seat 3005. A fixing screw 3002 is fixedly connected to one end of each rotating shaft. A disc 3001 is fixedly connected to one end of both the fixing screw 3002 and the rotating shaft. One disc 3001 abuts against the outer wall of one side of the rotating seat 3005. A fixing nut 3003 is threaded onto the outer circumference of the fixing screw 3002. A fixing lug 3004 is fixedly connected to the outer circumference of the rotating shaft. When the fixing nut 3003 is loosened, the rotating shaft can drive the fixing lug 3004 to rotate freely to adjust the angle of the detection probe 2. After adjustment, tightening the nut causes the disc 3001 to press against the outer wall of the rotating seat 3005 to lock the angle, thus facilitating the inspection of the rebar position by the operator.

[0032] Preferably, the first length adjustment component 4 includes a first sleeve 4001 fixedly connected to one end of the fixed ear 3004, a second sleeve 4002 inserted inside the first sleeve 4001, and a locking head 4003 fixedly connected to one end of the second sleeve 4002, the diameter of the locking head 4003 being larger than the diameter of the second sleeve 4002.

[0033] Preferably, the locking head 4003 has a circular groove 4005 inside. A spring 4008 is fixedly connected to one inner wall of the circular groove 4005, and a locking pin 4004 is fixedly connected to the other end of the spring 4008. The locking pin 4004 has a T-shaped cross-section. The outer circumference of the locking head 4003 has a through hole 4006, which is connected to the circular groove 4005. The outer circumference of the first sleeve 4001 has a locking hole 4007 that mates with the locking pin 4004. The locking hole 4007 is connected to the through hole 4006. The spring 4008 inside the locking head 4003 pushes the T-shaped locking pin 4004 through the through hole 4006 and into the locking hole 4007 of the first sleeve 4001 to achieve length locking.

[0034] Preferably, the second length adjustment component 6 includes a threaded groove 6003 formed inside the second sleeve 4002. The second sleeve 4002 is threadedly connected to a threaded rod 6001 through the threaded groove 6003. By rotating the threaded rod 6001 with a handle 6002 inside the second sleeve 4002, a more precise length adjustment can be achieved by using the threaded groove 6003 for transmission.

[0035] Preferably, a handle 6002 is fixedly connected to one end of the threaded rod 6001, and a limiting block 6004 is fixedly connected to the end of the threaded rod 6001 away from the handle 6002. The limiting block 6004 located at the end of the threaded rod 6001 prevents it from completely disengaging.

[0036] Preferably, the unlocking component 5 includes an outer ring tube 5001 fixedly connected to the outer circumferential wall of the first sleeve 4001. A pressing post 5002 is inserted into the outer circumferential wall of the outer ring tube 5001. The pressing post 5002 has the same axis as the locking post 4004. A first limiting plate 5003 and a second limiting plate 5004 are fixedly connected to the outer circumferential wall of the pressing post 5002. The distance between the first limiting plate 5003 and the outer ring tube 5001 is the same as the depth of the locking hole 4007. Since the distance between the first limiting plate 5003 and the outer ring tube 5001 matches the depth of the locking hole 4007, the locking post 4004 can be accurately pushed to unlock when pressed.

[0037] Working principle: During use, the rotating seat 3005 of the angle adjustment component 3 is fixed on one side of the ultrasonic detector body 1. The rotating shafts on both sides are connected to the fixing screws 3002 and the fixing ears 3004. When the fixing nut 3003 is loosened, the rotating shaft can drive the fixing ears 3004 to rotate freely to adjust the angle of the detection probe 2. After adjustment, tightening the nut makes the disc 3001 press against the outer wall of the rotating seat 3005 to lock the angle, which facilitates the staff to detect the position of the steel bars. During the detection, the ultrasonic detector emits high-frequency ultrasonic pulses through the detection probe 2 and transmits them to the concrete. Because the acoustic impedance difference between the steel bars and the concrete is large, the ultrasonic waves will be strongly reflected when they encounter the steel bars. At this time, the ultrasonic detector determines the position, spacing and protective layer thickness of the steel bars by analyzing the time delay and amplitude change of the reflected signal. The location of the signal change is the location of the steel bars. The depth of the steel bars can be calculated based on the propagation time.

[0038] Meanwhile, during use, the length adjustment in the ultrasonic detector is divided into coarse adjustment and fine adjustment. During coarse adjustment, pulling the second sleeve 4002 will push the T-shaped locking post 4004 through the through hole 4006 and embed it into the locking hole 4007 of the first sleeve 4001 to lock the length. When storing, pressing the pressing post 5002 of the unlocking component 5 will push the locking post 4004 to compress the spring 4008 and disengage it from the locking hole 4007 through the first limiting plate 5003, so that the second sleeve 4002 can be stored in the first sleeve 4001. Fine adjustment is achieved by rotating the threaded rod 6001 with handle 6002 inside the second sleeve 4002 and using the threaded groove 6003 to achieve a more precise length adjustment. At the same time, the limiting block 6004 at the end of the threaded rod 6001 prevents it from completely disengaging.

[0039] The outer ring tube 5001 of the unlocking component 5 is fixed on the first sleeve 4001. The pressing post 5002 passes through the outer ring tube 5001, and the first limiting plate 5003 on it matches the depth of the locking hole 4007 with the distance between it and the outer ring tube 5001. When pressed, the locking post 4004 is precisely pushed to unlock. After releasing, the spring 4008 returns to its original position. The overall process is to perform coarse and fine adjustment tests in sequence after the angle is positioned. After completion, the unlocking component 5 is retracted and stored. This design realizes flexible and precise control of the detection position and distance through mechanical structure linkage. It has the advantages of multi-angle adaptation, high efficiency of dual-level adjustment, safe and reliable locking, and portability and easy storage.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention.

Claims

1. A portable rebar position measuring instrument, characterized in that, include: The ultrasonic detector body (1) has a detection probe (2) on one side. Angle adjustment component (3) for adjusting the detection orientation of the ultrasonic detector body (1); The first length adjustment component (4) and the second length adjustment component (6) are used to increase the length of the ultrasonic detector body (1). The first length adjustment component (4) is used to coarsely adjust the length of the ultrasonic detector body (1), and the second length adjustment component (6) is used to finely adjust the length of the ultrasonic detector body (1). Unlocking component (5) for storing the first length adjustment component (4).

2. The portable rebar position measuring instrument according to claim 1, characterized in that, The angle adjustment assembly (3) includes a rotating seat (3005) fixedly connected to one side of the ultrasonic detector body (1). The inner walls on both sides of the rotating seat (3005) are rotatably connected to a rotating shaft. One end of the rotating shaft is fixedly connected to a fixing screw (3002). One end of the fixing screw (3002) and one end of the rotating shaft are both fixedly connected to a disc (3001). One disc (3001) abuts against one side of the outer wall of the rotating seat (3005). The outer circumference of the fixing screw (3002) is threaded with a fixing nut (3003). The outer circumference of the rotating shaft is fixedly connected with a fixing lug (3004).

3. The portable rebar position measuring instrument according to claim 2, characterized in that, The first length adjustment assembly (4) includes a first sleeve (4001) fixedly connected to one end of the fixed ear (3004), a second sleeve (4002) inserted inside the first sleeve (4001), and a locking head (4003) fixedly connected to one end of the second sleeve (4002), the diameter of the locking head (4003) being larger than the diameter of the second sleeve (4002).

4. The portable rebar position measuring instrument according to claim 3, characterized in that, The locking head (4003) has a circular groove (4005) inside. A spring (4008) is fixedly connected to one inner wall of the circular groove (4005). A locking pin (4004) is fixedly connected to the other end of the spring (4008). The locking pin (4004) has a T-shaped cross-section. A through hole (4006) is opened on the outer circumference of the locking head (4003). The through hole (4006) is connected to the circular groove (4005). A locking hole (4007) is opened on the outer circumference of the first sleeve (4001) to cooperate with the locking pin (4004). The locking hole (4007) is connected to the through hole (4006).

5. The portable rebar position measuring instrument according to claim 4, characterized in that, The second length adjustment component (6) includes a threaded groove (6003) formed inside the second sleeve (4002), and the second sleeve (4002) is threadedly connected to a threaded rod (6001) through the threaded groove (6003).

6. The portable rebar position measuring instrument according to claim 5, characterized in that, One end of the threaded rod (6001) is fixedly connected to a handle (6002), and the end of the threaded rod (6001) away from the handle (6002) is fixedly connected to a limit block (6004).

7. The portable rebar position measuring instrument according to claim 6, characterized in that, The unlocking component (5) includes an outer ring tube (5001) fixedly connected to the outer circumferential wall of the first sleeve (4001). A pressing post (5002) is inserted into the outer circumferential wall of the outer ring tube (5001). The pressing post (5002) and the locking post (4004) have the same axis. A first limiting plate (5003) and a second limiting plate (5004) are fixedly connected to the outer circumferential wall of the pressing post (5002). The distance between the first limiting plate (5003) and the outer ring tube (5001) is the same as the hole depth of the locking hole (4007).

Images