Steel bar meter

Abstract

The utility model belongs to the technical field of engineering monitoring equipment, and particularly relates to a steel bar meter which comprises a main body, a containing cavity is formed in the main body, and a steel string and a coil are installed in the containing cavity. The wire rotating ring is arranged on the main body in a sleeving manner; a gap exists between the outer surface of the main body and the inner surface of the wire rotating ring, the gap is used for accommodating a wire, and a wire outlet boss is arranged on the wire rotating ring; a hole is formed in the middle of the wire outlet boss, a wire outlet hole is formed in the body, and a wire connected with the coil sequentially passes through the wire outlet hole and the hole in the wire outlet boss and then extends out of the body. The wire rotating ring is sleeved on the main body of the steel bar meter, so that a gap is formed between the outer surface of the main body and the inner surface of the wire rotating ring, the gap can be used for accommodating a wire, and after two ends of the steel bar meter are welded on a steel bar, the direction of the wire outlet boss is changed by rotating the wire rotating ring; therefore, the wire is led out of the steel bar meter at the optimal angle position.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering monitoring equipment, in particular to a steel bar meter. Background Art

[0002] Rebar meters are widely used in concrete structures such as building foundations, pile foundations, underground continuous walls, tunnel linings, bridges, slopes, docks, shipyards, and gates, as well as for safety monitoring during deep excavation. They are primarily used to measure stress in rebar within concrete, as well as the anchoring and pullout forces of anchor rods. A rebar meter consists of a main sleeve, an internal steel chord, and a coil. Both ends of the sleeve are equipped with connecting rods for welding rebar. The steel chord is designed to generate vibrations at a specific frequency. When the rebar is stressed, the vibration frequency changes. The coil senses this change in vibration frequency and transmits the signal via a wire, thereby monitoring rebar stress. However, traditional rebar meters have a problem: the wire outlet is fixed, requiring the location of the outlet to be predetermined before use. Otherwise, once the rebar meter is installed and secured, the wire outlet position is also determined and cannot be adjusted. This prevents the wire from being optimally positioned, compromising wire connection and protection. Utility Model Content

[0003] The purpose of the utility model is to solve the deficiencies of the prior art and provide a rebar meter, which can adjust the position of the wire outlet so that the wire can be led out of the rebar meter at an optimal position.

[0004] The technical solution of the utility model is: a steel bar meter, including a main body, a accommodating cavity is provided inside the main body, and a steel string and a coil are installed in the accommodating cavity; connecting rods are provided at both ends of the main body, and the main body also includes a wire rotating ring, and the wire rotating ring is sleeved on the main body; there is a gap between the outer surface of the main body and the inner surface of the wire rotating ring, and the gap is used to accommodate the wire, and the wire rotating ring is provided with a wire outlet boss; there is a hole in the middle of the wire outlet boss, and a wire outlet hole is provided on the main body, and the wire connecting the coil passes through the wire outlet hole and the hole on the wire outlet boss in sequence and then extends to the outside of the main body.

[0005] Furthermore, both ends of the main body are set as through holes, which are connected to the accommodating cavity, and internal threads are set in the through holes. One end of the connecting rod is set with an external thread, and the connecting rod is threadedly connected to the main body, and the other end of the connecting rod is connected to the steel bar.

[0006] Furthermore, the main body is in the shape of a stepped shaft, and the diameter gradually decreases from one end to the other end.

[0007] Furthermore, it also includes a protective tube, which is detachably mounted on the end of the main body with a smaller diameter.

[0008] Furthermore, an external thread is provided on the outer wall of the end of the main body with a smaller diameter, and an internal thread is provided on the protective tube. The internal thread on the protective tube matches the external thread on the end of the main body.

[0009] Furthermore, the outer diameter of the outlet boss matches the inner diameter of the protection tube.

[0010] Furthermore, an external thread is provided on the outside of the wire outlet boss, and the external thread on the outside of the wire outlet boss matches the internal thread on the protective tube.

[0011] Furthermore, a sealing ring is provided on the main body, and the sealing ring is arranged in a sealing ring groove on the step surface of the main body.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The main body of the rebar meter in this utility model is equipped with a wire rotating ring, which creates a gap between the outer surface of the main body and the inner surface of the wire rotating ring. This gap can be used to accommodate the wire. After the two ends of the rebar meter are welded to the rebar, the wire rotating ring can be rotated to change the orientation of the wire outlet boss, allowing the wire to be led out of the rebar meter in the optimal position.

[0014] 2. The present invention is also provided with a protective tube. When in use, the protective tube can be installed on one end of the main body, and the wire rotating ring is pressed against the main body through the threaded structure. In some cases, the wire rotating ring can also be directly fixed to the main body. In this case, the protective tube can be removed from the main body and installed on the wire outlet boss of the wire rotating ring to extend the height of the wire outlet boss and further improve the protection of the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present utility model;

[0016] Figure 2 This is an explosion diagram of Example 1 of the present utility model;

[0017] Figure 3 It is a cross-sectional schematic diagram of Example 1 of the present utility model;

[0018] Figure 4 This is a schematic diagram of the main body in Example 1 of the present utility model;

[0019] Figure 5 This is a schematic diagram of the wire rotating ring in Example 1 of the present utility model;

[0020] Figure 6 This is a state diagram of the protective tube when being installed on the outlet boss in Example 1 of the present utility model;

[0021] In the figure: 1. Main body; 11. Accommodating cavity; 12. Wire outlet hole; 13. Sealing ring groove; 2. Connecting rod; 3. Wire rotating ring; 31. Wire outlet boss; 4. Protective tube; 5. Steel string; 6. Coil; 7. Wire. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to specific embodiments. Methods or functional components not specifically described in the embodiments are all prior art. Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by technicians in the technical field of the present invention.

[0023] Example 1

[0024] like Figure 1-6 As shown, this embodiment is a steel bar meter, comprising a main body 1, wherein a accommodating cavity 11 is provided inside the main body 1, in which a steel string 5 and a coil 6 are installed; connecting rods 2 are provided at both ends of the main body 1, and the main body 1 also comprises a wire rotating ring 3, which is sleeved on the main body 1; there is a gap between the outer surface of the main body 1 and the inner surface of the wire rotating ring 3, and the gap can be used to accommodate the wire 7, that is, when the wire rotating ring 3 rotates, the wire 7 can flexibly move in the gap to surround the main body 1, and the wire rotating ring 3 is provided with a wire outlet boss 31; there is a hole in the middle of the wire outlet boss 31, and a wire outlet hole 12 is provided on the main body 1, and the length of the wire 7 connected to the coil 6 is greater than the circumference of the main body 1 at the corresponding position, so that the wire 7 passes through the wire outlet hole 12, and even after wrapping around the main body 1 again, it can still extend from the hole on the wire outlet boss 31 to the outside of the main body 1.

[0025] In this embodiment, through-holes are provided at both ends of the main body 1, communicating with the accommodating chamber 11. Each through-hole is internally threaded. One end of the connecting rod 2 is externally threaded, enabling a threaded connection between the connecting rod 2 and the main body 1. The other end of the connecting rod 2 is connected to the rebar to be measured. The ends of the steel string 5 are connected to the ends of the two connecting rods 2, respectively. The coil 6 is disposed in the center of the accommodating chamber 11 to sense the vibration of the steel string 5.

[0026] In this embodiment, the main body 1 is in the shape of a stepped shaft, with its diameter gradually decreasing from one end to the other. A protective tube 4 is detachably mounted on the smaller end of the main body 1. Specifically, the protective tube 4 is a hollow circular tube with an external thread on the outer wall of the smaller end of the main body 1 and an internal thread on the protective tube 4. The internal thread on the protective tube 4 mates with the external thread on the end of the main body 1.

[0027] In this embodiment, the outer diameter of the outlet boss 31 matches the inner diameter of the protection tube 4. The outlet boss 31 is provided with an external thread, which also matches the internal thread on the protection tube 4.

[0028] In this embodiment, a sealing ring is provided on the main body 1 , and the sealing ring is arranged in a sealing ring groove 13 on the step surface of the main body 1 .

[0029] When the rebar meter in this embodiment is actually used, the connecting rods 2 at both ends can be welded to the rebar to be measured first, and then the wire rotating ring 3 can be rotated according to the actual situation to make the orientation of the wire output boss 31 appropriate to ensure that the position of the wire 7 led out of the rebar meter is optimal; then tighten the protective tube 4 to press the wire rotating ring 3 onto the main body 1.

[0030] Of course, you can also remove the protective tube 4 first and then weld the connecting rod 2, and then adjust the angle position of the wire rotating ring 3. After adjustment, fix the position angle of the wire rotating ring 3 on the main body 1 (for example, by using connecting glue); at this time, the protective tube 4 can be installed on the wire outlet boss 31 to lengthen the height of the wire outlet boss 31, thereby further improving the protection of the wire 7.

[0031] The above are only some embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have combinations and variations of the aforementioned technical features. Without departing from the spirit and scope of the present invention, those skilled in the art can improve, modify, or replace the present invention with equivalents, or apply the structure or method of the present invention to other fields to achieve the same effect, which all fall within the scope of protection included in the present invention.

Claims

1. A rebar meter comprising a main body, a receiving cavity provided inside the main body, a steel string and a coil installed in the receiving cavity; connecting rods provided at both ends of the main body, characterized in that: It also includes a wire rotating ring, which is sleeved on the main body; there is a gap between the outer surface of the main body and the inner surface of the wire rotating ring, and the gap is used to accommodate the wire. The wire rotating ring is provided with a wire outlet boss; the main body is provided with a wire outlet hole, and the wire connecting the coil passes through the wire outlet hole and the wire outlet boss in sequence and then extends to the outside of the main body.

2. The steel bar meter according to claim 1, characterized in that: Both ends of the main body are set as through holes, which are connected to the accommodating cavity. Internal threads are set in the through holes. One end of the connecting rod is set with an external thread. The connecting rod is threadedly connected to the main body, and the other end of the connecting rod is connected to the steel bar.

3. The steel bar meter according to claim 1, characterized in that: The main body is in a stepped shaft shape, and the diameter gradually decreases from one end to the other end.

4. The steel bar meter according to claim 3, characterized in that: The utility model further comprises a protection tube which is detachably mounted on the end of the main body with a smaller diameter.

5. The steel bar meter according to claim 4, characterized in that: An external thread is further provided on the outer wall of the end of the main body with a smaller diameter, and an internal thread is provided on the protective tube. The internal thread on the protective tube matches the external thread on the end of the main body.

6. The steel bar meter according to claim 5, characterized in that: The outer diameter of the wire outlet boss matches the inner diameter of the protection tube.

7. The steel bar meter according to claim 4, characterized in that: The outside of the outlet boss is provided with an external thread, and the external thread of the outlet boss matches the internal thread on the protection tube.

8. The steel bar meter according to claim 1, characterized in that: A sealing ring is provided on the main body.

9. The steel bar meter according to claim 8, characterized in that: The sealing ring is arranged in a sealing ring groove on the step surface of the main body.

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