Wire winding device of radar detection device for internal cracks of concrete structure
By designing a wire winding device that includes a housing, a rotating shaft, a coil spring, a protrusion, and a locking block, the problems of wire tangling and twisting are solved, and the automatic winding and fixing of wires is realized, thereby improving the detection efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TESTING CENT FOR QUALITY OF CONSTR ENG
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-21
AI Technical Summary
The wires of traditional crack radar detection devices are prone to tangling and twisting, which affects detection efficiency and requires extra storage during packaging, making operation inconvenient.
A wire winding device comprising a housing, a rotating shaft, a coil spring, a protrusion, and a locking block is designed. The potential energy of the coil spring is released by the misalignment of the protrusion and the locking block, thereby realizing the automatic winding and fixing of the wire.
It improves the operability and flexibility of the wires, avoids tangling and twisting, simplifies the storage process, and enhances testing efficiency.
Smart Images

Figure CN224147429U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of detection technology, specifically to a wire winding device for a radar detection device for internal cracks in concrete structures. Background Technology
[0002] A flaw detector is a non-destructive testing device used to detect internal defects in materials. It is mainly divided into magnetic particle flaw detectors, ultrasonic flaw detectors, etc., and is widely used in industrial manufacturing, aerospace, energy and chemical industries.
[0003] Traditional crack radar detection devices (flaw detectors), such as HC-U81, JW-140B, and ZBL-U510, have long wires connecting the flaw detector and the probe. This makes the signal wires (wires) prone to tangling and twisting during storage, requiring untangling when retrieving them, thus affecting detection efficiency. Furthermore, the wires need to be retracted during equipment packing, which also affects efficiency. To address this, we propose a wire winding device for radar detection of internal cracks in concrete structures. Utility Model Content
[0004] The purpose of this utility model is to provide a wire winding device for a radar detection device for internal cracks in concrete structures, to solve the problem mentioned in the background art of traditional crack radar detection devices (flaw detectors), such as HC-U81, JW-140B, and ZBL-U510, which have long wires connecting the flaw detector and the probe. This causes the signal wires to easily become tangled and twisted during storage, requiring untangling for reuse, thus affecting detection efficiency. Furthermore, the wires need to be wound up during equipment packaging, which also affects efficiency. To achieve the above objective, this utility model provides the following technical solution: a wire winding device for a radar detection device for internal cracks in concrete structures, comprising a flaw detector body;
[0005] A storage component, comprising a housing, wherein a partition is fixedly sleeved on the inner ring surface of the housing, and the partition has a movable groove inside;
[0006] A winding assembly includes a rotating shaft, a coil spring fixedly connected to the side wall surface of the rotating shaft, a fixing block fixedly connected to the outer edge end of the coil spring, and a movable column fixedly connected to one side of the fixing block, the movable column being movably connected in a movable groove.
[0007] The damping assembly includes a spring sheet, one inner ring surface of which is fixedly connected to one end of a rotating shaft via a connector. A locking block is fixedly connected to the side surface of the spring sheet. A clearance groove is provided on one side of the flaw detector body. A protrusion is fixedly connected to the inner edge of the clearance groove near the housing. The locking block of the protrusion is movably connected.
[0008] A damping release assembly includes a hollow groove, which is formed at one end of a rotating shaft. A spring is movably sleeved inside the hollow groove, and a push cap is movably sleeved at one end of the rotating shaft extending out of the housing via a bearing.
[0009] More preferably, the side surface of the rotating shaft is used to wind up the wire, and one end of the wire connected to the probe passes through a slot on the side surface of the housing.
[0010] More preferably, the thickness of the protrusion is less than half the depth of the clearance groove, and the thickness of the protrusion is the same as the thickness of the spring and the locking block.
[0011] In a further preferred embodiment, the two ends of the spring abut against the inner wall of the hollow groove and the inner wall of one side of the clearance groove respectively by the force of the spring, and the locking block is locked in the slot formed by the elastic deformation of the spring piece.
[0012] More preferably, the plurality of protrusions are arranged in a ring array along the circular inner wall of the clearance groove, and the spring sheet is made of an elastically deformable material.
[0013] More preferably, the right-angle connecting groove inside the rotating shaft is used for the passage of a wire, and the wire passes through the right-angle connecting groove and is electrically connected to the slip ring signal interface of the flaw detector body.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] In this invention, the potential energy of the wire is stored by the coil spring during the unwinding and rewinding process. By pressing the push cap, the protrusion and the locking block are misaligned, which releases the potential energy of the coil spring and reverses the rotating shaft, thereby automatically winding up the wire. This improves operability and makes the wire easier to store, preventing the wire from getting tangled.
[0016] In this invention, the rotation direction of the shaft is limited by the protrusion, the locking block and the spring after the wire is pulled out, so as to prevent the coil spring from releasing potential energy and thus fix the length of the pulled-out wire. At the same time, wires of different lengths can be pulled out as needed, improving the flexibility and practicality of operation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the exploded structure of this utility model;
[0018] Figure 2 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 3 This is a schematic diagram of the damping component structure of this utility model;
[0020] Figure 4 This is a top view of the structure of this utility model;
[0021] Figure 5 This utility model Figure 4 Schematic diagram of the cross-sectional structure of AA section;
[0022] Figure 6 This is a partial enlarged cross-sectional structural diagram of the present invention;
[0023] Figure 7 This is a side view of the structure of this utility model;
[0024] Figure 8 This utility model Figure 7 Schematic diagram of the cross-sectional structure at point BB;
[0025] Figure 9 This utility model Figure 8 Enlarged structural diagram at point D;
[0026] Figure 10 This is a schematic cross-sectional view of the structure at point CC in the figure of this utility model.
[0027] In the diagram: 1. Flaw detector body; 2. Storage assembly; 3. Winding assembly; 4. Damping assembly; 5. Damping release assembly; 201. Housing; 202. Partition plate; 203. Movable groove; 301. Rotating shaft; 302. Disc spring; 303. Fixing block; 304. Movable column; 401. Spring; 402. Locking block; 403. Clearance groove; 404. Protrusion; 501. Hollow groove; 502. Spring; 503. Push cap. Detailed Implementation
[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0029] Please see Figures 1-10 This utility model provides a technical solution: a wire winding device for a radar detection device for internal cracks in concrete structures, including a flaw detector body 1;
[0030] Storage component 2 includes a housing 201, a partition 202 is fixedly sleeved on the inner ring surface of the housing 201, and a movable groove 203 is opened inside the partition 202.
[0031] The winding assembly 3 includes a rotating shaft 301, a coil spring 302 is fixedly connected to the side wall surface of the rotating shaft 301, a fixing block 303 is fixedly connected to the outer edge end of the coil spring 302, and a movable column 304 is fixedly connected to one side of the fixing block 303. The movable column 304 is movably connected in the movable groove 203.
[0032] Damping assembly 4 includes a spring plate 401. The inner ring surface of one side of the spring plate 401 is fixedly connected to one end of the rotating shaft 301 through a connector. A locking block 402 is fixedly connected to the side surface of the spring plate 401. A clearance groove 403 is provided on one side of the flaw detector body 1. A protrusion 404 is fixedly connected to the inner edge of the clearance groove 403 near the housing 201. The locking block 402 of the protrusion 404 is movably connected.
[0033] The damping release component 5 includes a hollow groove 501, which is opened at one end of the rotating shaft 301. A spring 502 is movably sleeved inside the hollow groove 501. A push cap 503 is movably sleeved at one end of the rotating shaft 301 that extends out of the housing 201 via a bearing.
[0034] In this embodiment, as Figure 3 , Figure 5 and Figure 9 As shown, the side surface of the rotating shaft 301 is used to wind up the wire, and one end of the wire connected to the probe passes through the slot on the side surface of the housing 201.
[0035] In this embodiment, as Figure 3 , Figure 5 and Figure 9 As shown, the thickness of the protrusion 404 is less than half the depth of the clearance groove 403, and the thickness of the protrusion 404 is the same as the thickness of the spring piece 401 and the locking block 402.
[0036] In this embodiment, as Figure 3 , Figure 5 and Figure 9As shown, the two ends of the spring 502 abut against the inner wall of the hollow groove 501 and the inner wall of one side of the clearance groove 403 respectively through the force. The locking block 402 is locked in the slot formed by two adjacent protrusions 404 through the elastic deformation force of the spring piece 401. When in use, the wire can be pulled out as needed. During the process of pulling out the wire, the rotating shaft 301 rotates, thereby accumulating potential energy in the coil spring 302. Since the manual pulling is greater than the damping between the locking block 402 and the protrusion 404, the rotating shaft 301 rotates normally. When it is necessary to rewind the wire, the force of the spring 502 is overcome by pressing the push cap 503, so that the rotating shaft 301 moves closer to the flaw detector body 1. When the protrusion 404 and the locking block 402 are misaligned, the protrusion 404 and the locking block 402 do not abut against each other, so that the rotating shaft 301 is not subjected to force. When the force is applied, the coil spring 302 releases its accumulated potential energy, causing the rotating shaft 301 to reverse and rewind the wire, completing the winding and storage of the wire. The coil spring 302 accumulates the potential energy during the unwinding and extraction of the wire, and by pressing the push cap 503, the protrusion 404 and the locking block 402 are misaligned, causing the potential energy of the coil spring 302 to be released and the rotating shaft 301 to reverse, thereby automatically winding the wire, improving operability. At the same time, the winding of the wire facilitates storage and avoids the wire from tangling. The protrusion 404, the locking block 402, and the spring piece 401 limit the direction of rotation of the rotating shaft 301 after the wire is extracted, preventing the coil spring 302 from releasing its potential energy, thus fixing the length of the extracted wire. At the same time, wires of different lengths can be extracted as needed, improving operational flexibility and practicality.
[0037] In this embodiment, as Figure 3 , Figure 5 and Figure 9 As shown, multiple protrusions 404 are arranged in a ring array along the circular inner wall of the clearance groove 403, and the spring piece 401 is made of elastically deformable material.
[0038] In this embodiment, as Figure 3 , Figure 5 and Figure 9 As shown, the right-angle connecting groove inside the rotating shaft 301 is used for wires to pass through, and the wires pass through the right-angle connecting groove to be electrically connected to the slip ring signal interface of the flaw detector body 1.
[0039] The method of use and advantages of this utility model: The wire winding device of the radar detection device for internal cracks in concrete structures works as follows:
[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, during use, the wire can be pulled out as needed. During the pulling out of the wire, the rotating shaft 301 rotates, causing the coil spring 302 to accumulate potential energy. Since the manual pulling is greater than the damping between the locking block 402 and the protrusion 404, the rotating shaft 301 rotates normally. When it is necessary to rewind the wire, the force of the spring 502 is overcome by pressing the push cap 503, causing the rotating shaft 301 to move closer to the flaw detector body 1. When the protrusion 404 and the locking block 402 are misaligned and do not abut against each other, the rotating shaft 301 is not constrained by the force. At this time, the coil spring 302 releases the accumulated potential energy, causing the rotating shaft 301 to reverse and rewind the wire, completing the wire storage and winding.
[0041] 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A wire winding device for a radar device for detecting cracks in the interior of a concrete structure, characterized in that, Includes the main body of the flaw detector (1); Storage component (2), the storage component (2) includes a housing (201), a partition (202) is fixedly sleeved on the inner ring surface of the housing (201), and a movable groove (203) is opened inside the partition (202); A winding assembly (3) includes a rotating shaft (301), a coil spring (302) is fixedly connected to the side wall surface of the rotating shaft (301), a fixing block (303) is fixedly connected to the outer edge end of the coil spring (302), a movable column (304) is fixedly connected to one side of the fixing block (303), and the movable column (304) is movably connected in the movable groove (203); The damping assembly (4) includes a spring plate (401). The inner ring surface of one side of the spring plate (401) is fixedly connected to one end of the rotating shaft (301) through a connector. A locking block (402) is fixedly connected to the side surface of the spring plate (401). A clearance groove (403) is provided on one side of the flaw detector body (1). A protrusion (404) is fixedly connected to the inner edge of the clearance groove (403) near the housing (201). The locking block (402) of the protrusion (404) is movably connected. The damping release assembly (5) includes a hollow groove (501) which is opened at one end of the rotating shaft (301). A spring (502) is movably sleeved inside the hollow groove (501). A push cap (503) is movably sleeved at one end of the rotating shaft (301) extending out of the housing (201) via a bearing.
2. The wire winding device of a radar detection device for internal cracks of a concrete structure according to claim 1, characterized in that: The side surface of the rotating shaft (301) is used to wind up the wire, and one end of the wire connected to the probe passes through a slot on the side surface of the housing (201).
3. The wire winding device of a radar device for detecting internal cracks of a concrete structure according to claim 1, wherein: The thickness of the protrusion (404) is less than half the depth of the clearance groove (403), and the thickness of the protrusion (404) is the same as the thickness of the spring (401) and the locking block (402).
4. The wire winding device of a radar device for detecting internal cracks of a concrete structure according to claim 1, wherein: The two ends of the spring (502) abut against the inner wall of the hollow groove (501) and the inner wall of one side of the clearance groove (403) respectively by the force of the action. The locking block (402) is locked in the slot formed by two adjacent protrusions (404) by the elastic deformation force of the spring piece (401).
5. The wire winding device of a radar device for detecting internal cracks of a concrete structure according to claim 1, wherein: The multiple protrusions (404) are arranged in a ring array along the circular inner wall of the clearance groove (403), and the elastic piece (401) is made of elastically deformable material.
6. The wire winding device of a radar device for detecting internal cracks of a concrete structure according to claim 1, wherein: The right-angle connecting groove inside the rotating shaft (301) is used for the wire to pass through, and the wire passes through the right-angle connecting groove to be electrically connected to the slip ring signal interface of the flaw detector body (1).