Crack detector

Abstract

The utility model relates to the technical field of engineering supervision, and discloses a crack detector which comprises a host and a transducer, the storage structure comprises a storage box, a guide gauge and a storage roller, the storage box forms an internal double-layer box body structure, the storage roller is fixedly connected with the main machine, the storage box is rotationally connected with the storage roller, an opening is formed in one side of the storage box, two connecting rods are symmetrically arranged at the opening, and the connecting rods are elastically connected with the storage box and guide and clamp a wire; guiding can be released or stored by rotating the storage box, the storage box rotates to drive the two guide gauges to conduct synchronous circular motion, then the wire located between the two guide gauges is pulled to be wound around the surface of the storage roller to be released, the effect of facilitating winding and unwinding is achieved, the wire is clamped through the two guide gauges, and in the winding process, the wire is clamped through the two guide gauges, and the wire can be conveniently wound and unwound. And the wire between the two guide gauges and the storage roller can be ensured to be in a tightened state, so that the winding and unwinding effect is better.

Description

Technical Field

[0001] This utility model relates to the field of engineering supervision technology, and in particular to a crack detector. Background Technology

[0002] Crack detection is one aspect of building supervision, which involves using instruments to measure the depth or width of cracks.

[0003] The prior art discloses a crack width detector (CN212747744U) for supervising building construction projects. It includes an instrument body, a detection head, and a connecting line between the detection head and the instrument body. The connecting line is plugged into both the instrument body and the detection head. The end of the instrument body that is plugged into the connecting line is a connecting surface. A connecting shaft is rotatably connected to the connecting surface. A baffle is fixedly connected to the end of the connecting shaft away from the instrument body. A receiving column is rotatably sleeved on the circumferential side wall of the connecting shaft. A fixing component is provided on the baffle to fix the end of the connecting line.

[0004] In existing technology, the protective sleeve is moved away from the main body, allowing the wound wire to be released from the gap between the protective sleeve and the main body. Due to the winding, the wire needs to be rotated around the cylinder to be released. During the wire release, the gap between the protective sleeve and the main body needs to be kept wide enough, otherwise it will affect the release of the guide. The cable needs to be manually guided and the position of the protective sleeve needs to be paid attention to, which is inconvenient during the wire release and reeling process.

[0005] Therefore, we propose a crack detector. Utility Model Content

[0006] The present invention mainly addresses the technical problem of inconvenience in the winding and unwinding of the aforementioned wires, and provides a crack detector.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a crack detector, comprising:

[0008] The main unit and the transducer, wherein the transducer is electrically connected to the main unit via a wire;

[0009] A storage structure is installed above the main unit to store the transducer and wires. The storage structure includes a storage box, guide rails, and storage rollers. The storage box forms a double-layered internal box structure. The storage rollers are fixedly connected to the main unit, and the storage box is rotatably connected to the storage rollers. An opening is provided on one side of the storage box, and two connecting rods are symmetrically arranged at the opening. The connecting rods are elastically connected to the storage box and guide and clamp the wires.

[0010] In a preferred embodiment of this utility model, the storage structure further includes a connecting rod, with a connecting rod provided at the end of each guide. The guide is rotatably connected to the connecting rod and elastically connected to the storage box through the connecting rod.

[0011] In a preferred embodiment of this utility model, a protrusion is fixedly connected inside the storage box, and a hole is opened on the wall of the protrusion. The connecting rod is slidably connected to the hole, and a spring is fixedly connected to the end of the connecting rod. The spring is fixedly connected to the inner wall of the storage box.

[0012] In a preferred embodiment of this utility model, the storage box forms a box body with a bottom and a bottom opening, a sealing cover is hinged to the top of the storage box, a handle is rotatably connected to the top of the sealing cover, and a partition is fixedly installed on the inner wall of the storage box, forming upper and lower chambers through the partition.

[0013] In a preferred embodiment of this utility model, a circular hole is provided through the wall of the partition, the storage roller is rotatably connected to the circular hole, and the wire is wound around the part of the storage roller located below the partition, with the storage roller facing the opening of the storage box.

[0014] In a preferred embodiment of this utility model, the guide is formed into a cylindrical structure, and a rubber sleeve is fitted on the wall of the guide. The diameter of the guide is smaller than the diameter of the opening of the storage box.

[0015] As a preferred embodiment of this utility model, the storage structure further includes a locking block, which is fixedly installed above the partition inside the storage box. The top of the locking block has an arc-shaped slot, into which the transducer is inserted.

[0016] Beneficial effects

[0017] This invention provides a crack detector. It has the following advantages:

[0018] 1. This crack detector involves winding a wire around the surface of a receiving roller. The wire is released by rotating a receiving box. The wire extends through an opening to the outside of the receiving box. The transducer is stored in the upper chamber of the receiving box, and the wire is stored in the lower chamber, reducing contact and compression between the transducer and the wire, thus achieving protection. Rotating the receiving box releases or retracts the guide wire. Specifically, the rotation of the receiving box causes two guides to move synchronously in a circular motion, which pulls the wire located between the two guides and releases it by winding it around the surface of the receiving roller. This facilitates easy release and retrieval. By clamping the wire with the two guides, the wire located between the two guides and the receiving roller is kept taut during the winding process, resulting in better release and retrieval.

[0019] 2. This crack detector, by setting a connecting rod, pushes the connecting rod close to a guide at another symmetrical position through a spring, so that the two guides can approach each other and clamp the wire, which has a better limiting effect on the wire. The rubber sleeve can provide cushioning and protection for the wire, reducing wear during the wire winding and unwinding process. Attached Figure Description

[0020] Figure 1This is one of the overall perspective views of this utility model;

[0021] Figure 2 This is the second overall perspective view of the present utility model;

[0022] Figure 3 This is a schematic diagram showing the transducer of this utility model stored in a storage box;

[0023] Figure 4 This is a schematic diagram of the internal structure of the storage box of this utility model;

[0024] Figure 5 This is a partial sectional view of the storage box of this utility model.

[0025] Legend: 10. Main unit; 11. Transducer; 20. Storage box; 21. Guide rail; 22. Connecting rod; 23. Storage roller; 24. Locking block. Detailed Implementation

[0026] A crack detector, such as Figure 1 and Figure 3 As shown, it includes:

[0027] The main unit 10 and the transducer 11 are connected to the main unit 10 by a wire for electrical signal connection.

[0028] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a storage structure is positioned above the main unit 10 to store the transducer 11 and wires. The storage structure includes a storage box 20, a guide 21, and a storage roller 23. The storage box 20 forms a double-layered internal box structure. The storage roller 23 is fixedly connected to the main unit 10, and the storage box 20 is rotatably connected to the storage roller 23. An opening is provided on one side of the storage box 20, and two connecting rods 22 are symmetrically arranged at the opening. The connecting rods 22 are elastically connected to the storage box 20 and guide and clamp the wires. The guide 21 forms a cylindrical structure, and a rubber sleeve is fitted onto the wall of the guide 21. The diameter of the guide 21 is smaller than the diameter of the opening of the storage box 20. In this design, the height of the opening is the same as the height of the storage box 20. The wires are wound around the surface of the storage roller 23. The wire is released by rotating the storage box 20. The wire needs to extend through the opening to the outside of the storage box 20. The transducer 11 is stored in the upper chamber of the storage box 20, and the wire is stored in the lower chamber of the storage box 20. This reduces the contact and compression between the transducer 11 and the wire, thus achieving protection. Rotating the storage box 20 can release or store the guide. Specifically, the rotation of the storage box 20 will cause the two guides 21 to move in a synchronous circular motion. The wire located between the two guides 21 is pulled and released from the surface of the storage roller 23, which has the effect of easy release and take-up. The wire is clamped by the two guides 21. During the winding process, the wire located between the two guides 21 and the storage roller 23 can be kept in a taut state, thus improving the release and take-up effect.

[0029] like Figure 3 As shown, the storage structure also includes a connecting rod 22. Each guide 21 has a connecting rod 22 at its end. The guide 21 is rotatably connected to the connecting rod 22 and elastically connected to the storage box 20 through the connecting rod 22. A protrusion is fixedly connected inside the storage box 20. The wall of the protrusion has a hole. The connecting rod 22 is slidably connected to the hole. A spring is fixedly connected to the end of the connecting rod 22. The spring is fixedly connected to the inner wall of the storage box 20. By setting the connecting rod 22, the spring pushes the connecting rod 22 closer to the guide 21 at another symmetrical position, so that the two guides 21 can approach each other and clamp the wire. The limiting effect of the wire is better. The rubber sleeve can provide cushioning and protection for the wire and reduce wear during the wire loading and unloading process.

[0030] like Figure 2 and Figure 5As shown, the storage box 20 forms a box body with a bottom and a bottom opening. The top of the storage box 20 is hinged with a sealing cover, and the top of the sealing cover is rotatably connected to a handle. A partition is fixedly installed on the inner wall of the storage box 20, and the storage box 20 forms upper and lower chambers through the partition. A circular hole is opened through the wall of the partition. The storage roller 23 is rotatably connected to the circular hole. The wire is wound around the part of the storage roller 23 located below the partition. The storage roller 23 is directly opposite the opening of the storage box 20. The sealing cover is set and locked to the storage box 20 by a buckle or by magnetic adsorption. When taking out or taking out the wire, the sealing cover can be flipped over to take out the transducer 11 from the upper chamber of the storage box 20, which is convenient to take out.

[0031] like Figure 4 As shown, the storage structure also includes a locking block 24, which is fixedly installed above the partition inside the storage box 20. The top of the locking block 24 has an arc-shaped slot, into which the transducer 11 is inserted. By setting the locking block 24, the rubber locking block 24 is used to clamp and limit the transducer 11, so that the transducer 11 can be better stored, reducing wear caused by squeezing and shaking at the detection position of the transducer 11, and also limiting the wire end connected to the transducer 11.

[0032] The working principle of this utility model is as follows: A wire is wound around the surface of the receiving roller 23. The wire is released by rotating the receiving box 20. The wire needs to extend through the opening to the outside of the receiving box 20. The transducer 11 is housed in the upper chamber of the receiving box 20, and the wire is housed in the lower chamber. Rotating the receiving box 20 releases or retracts the guide wire. Specifically, the rotation of the receiving box 20 causes two guides 21 to move synchronously in a circular motion, thereby pulling the wire located between the two guides 21 from the surface of the receiving roller 23 and releasing it. A connecting rod 22 is provided, and a spring pushes... The connecting rod 22 is close to the guide 21 at another symmetrical position, so that the two guides 21 can approach each other to clamp the wire. The wire is wound around the part of the storage roller 23 located below the partition. The storage roller 23 is directly opposite the opening of the storage box 20. A sealing cover is provided, and the sealing cover is locked to the storage box 20 by a buckle. It can also be fixed by magnetic snap. When taking in and taking out the wire, the sealing cover can be flipped to take out the transducer 11 from the cavity above the storage box 20. By setting a locking block 24, the rubber locking block 24 is used to clamp and limit the transducer 11, so that the transducer 11 can be better stored.

[0033] Furthermore, the main unit 10 and the transducer 11 are existing known technologies. The main unit 10 contains electronic components such as a sound wave generator, a sound wave receiver, a control board, and a power supply. The electronic components are interconnected by electrical signals. The specific control methods and connection methods are existing known technologies and will not be described in detail here.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A crack detector, characterized in that, include: The host (10) and the transducer (11) are connected to the host (10) by means of a wire; The storage structure is set above the main unit (10) to store the transducer (11) and the wires. The storage structure includes a storage box (20), a guide (21) and a storage roller (23). The storage box (20) forms a double-layer box structure. The storage roller (23) is fixedly connected to the main unit (10). The storage box (20) is rotatably connected to the storage roller (23). An opening is provided on one side of the storage box (20). Two connecting rods (22) are symmetrically arranged at the opening. The connecting rods (22) are elastically connected to the storage box (20) and guide and clamp the wires.

2. The crack detector according to claim 1, characterized in that: The storage structure also includes a connecting rod (22). Each guide (21) is provided with a connecting rod (22) at its end. The guide (21) and the connecting rod (22) are rotatably connected and elastically connected to the storage box (20) through the connecting rod (22).

3. The crack detector according to claim 2, characterized in that: The storage box (20) has a protrusion fixedly connected inside, and the wall of the protrusion has a hole. The connecting rod (22) is slidably connected to the hole, and the end of the connecting rod (22) is fixedly connected to a spring. The spring is fixedly connected to the inner wall of the storage box (20).

4. The crack detector according to claim 1, characterized in that: The storage box (20) forms a box body with a bottom and a bottom opening. The top of the storage box (20) is hinged with a sealing cover, and the top of the sealing cover is rotatably connected with a handle. The inner wall of the storage box (20) is fixedly installed with a partition, and the storage box (20) forms upper and lower chambers through the partition.

5. The crack detector according to claim 4, characterized in that: The partition wall has a through hole, the storage roller (23) is rotatably connected to the hole, and the wire is wound around the part of the storage roller (23) below the partition. The storage roller (23) is directly opposite the opening of the storage box (20).

6. The crack detector according to claim 1, characterized in that: The guide (21) forms a cylindrical structure, and the wall of the guide (21) is fitted with a rubber sleeve. The diameter of the guide (21) is smaller than the diameter of the opening of the storage box (20).

7. The crack detector according to claim 1, characterized in that: The storage structure also includes a locking block (24), which is fixedly installed above the partition inside the storage box (20). The top of the locking block (24) has an arc-shaped slot, into which the transducer (11) is inserted.

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