Internal penetrating type probe structure for eddy current detector

Abstract

The utility model relates to the technical field of probe structures, and discloses an internal penetration type probe structure for an eddy current detector, which comprises a wire mounting port, a wire body is arranged in the wire mounting port, and an internal penetration type probe composition mechanism is arranged on the back of the wire mounting port. And an anti-friction protection mechanism is arranged outside the internal penetration type probe composition mechanism. According to the internal penetration type probe structure for the eddy current detector, through the arrangement of the anti-friction protection mechanism, in the use process, damage caused by friction generated by direct contact between an internal penetration type probe composition mechanism and the inner wall of a pipeline can be prevented by utilizing a block of an anti-friction ring, the anti-friction ring can be prevented from being rubbed by utilizing an auxiliary pulley seat, and meanwhile, movement can be assisted; and by utilizing the elasticity of the spring, the sliding plate can drive the auxiliary pulley seat to move, so that the situation that the inner wall of the pipeline generates bulges to cause that the internal penetration type probe composition mechanism cannot normally move is avoided, and the service life of the internal penetration type probe is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of probe structures, in particular to an internal through-type probe structure for an eddy current detector. Background Technique

[0002] Eddy current testing is a non-destructive testing method based on the principle of electromagnetic induction. It is applicable to conductive materials. When a conductor is placed in an alternating magnetic field, there will be an induced current in the conductor, that is, an eddy current is generated. During the process of pipeline detection by an eddy current detector, an internal through-type probe is usually used to make the probe pass through the inside of the pipeline to detect defects on the inner wall of the pipeline and check whether there are cracks on the inner wall of the pipeline.

[0003] In the prior art, when an internal through-type probe is used for eddy current testing of a pipeline, it is usually necessary to extend the probe into the pipeline to detect defects on the inner wall of the pipeline. However, in actual use, when the internal through-type probe moves inside the pipeline, the outer surface of the probe will contact the inner wall of the pipeline, generating relatively large friction. After a long time, the outer surface of the internal through-type probe will be worn, affecting its service life. Therefore, it is necessary to improve the internal through-type probe structure for an eddy current detector to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide an internal through-type probe structure for an eddy current detector to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an internal through-type probe structure for an eddy current detector, including a wire installation port, a wire body is arranged inside the wire installation port, an internal through-type probe composition mechanism is arranged on the back of the wire installation port, and an anti-friction protection mechanism is arranged outside the internal through-type probe composition mechanism.

[0006] The anti-friction protection mechanism includes a sliding protection component and an auxiliary rebounding component, and the auxiliary rebounding component is arranged inside the sliding protection component.

[0007] Preferably, the internal through-type probe composition mechanism includes an eddy current detection body, the eddy current detection body is arranged on the back of the wire installation port, an eddy current detection probe body is arranged on the back of the eddy current detection body, and an eddy current detection probe body is arranged on the back of the eddy current detection probe body, which is convenient for eddy current detection of the inner wall of the pipeline through the internal through-type probe composition mechanism.

[0008] Preferably, the sliding protection assembly includes an anti-friction ring which is fixedly installed on the outside of the eddy current detection body and the eddy current detection probe body. A limiting strip is fixedly installed inside the anti-friction ring, and a sliding plate is slidably installed outside the limiting strip. An auxiliary pulley seat is arranged on the top of the sliding plate, which is convenient for anti-friction protection of the in-line probe assembly through the sliding protection assembly.

[0009] Preferably, an installation groove is formed inside the anti-friction ring, and the limiting strip is fixedly installed inside the installation groove formed inside the anti-friction ring, which is convenient for installation under normal conditions.

[0010] Preferably, a groove is formed at the corresponding position of the sliding plate and the limiting strip, and the limiting strip is slidably installed inside the groove formed inside the sliding plate, which is convenient for the sliding plate to slide under normal conditions.

[0011] Preferably, the auxiliary rebounding assembly includes a limiting slide bar which is fixedly installed inside the anti-friction ring. A sliding block is slidably installed outside the limiting slide bar. A spring is fixedly installed inside the sliding block, and a rotating arm is rotatably installed outside the sliding block, which is convenient for the auxiliary pulley seat to move through the auxiliary rebounding assembly.

[0012] Preferably, the spring is arranged outside the limiting slide bar, and one end of the rotating arm away from the sliding block is rotatably installed on the inner side of the sliding plate, which is convenient for the auxiliary pulley seat to rebound under normal conditions.

[0013] Compared with the prior art, the present utility model provides an in-line probe structure for an eddy current detector, which has the following beneficial effects:

[0014] 1. For the in-line probe structure for the eddy current detector, through the provided anti-friction protection mechanism, during use, by means of the blocking of the anti-friction ring, it can prevent the in-line probe assembly from directly contacting the inner wall of the pipeline and generating friction to cause damage. By using the auxiliary pulley seat, it can avoid the anti-friction ring from being rubbed, and at the same time can assist in moving. By the elasticity of the spring, the sliding plate can drive the auxiliary pulley seat to move, avoiding the protrusions on the inner wall of the pipeline from causing the in-line probe assembly to fail to move normally, and improving the service life of the in-line probe.

[0015] 2. For the in-line probe structure for the eddy current detector, through the provided in-line probe assembly, during use, through the provided eddy current detection body, eddy current detection probe body and eddy current detection probe body, the defect detection of the inner wall of the pipeline can be carried out, realizing the function of eddy current detection of the inner wall of the pipeline. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings:

[0017] Figure 1 It is a schematic diagram of the external structure of the present utility model;

[0018] Figure 2 It is a schematic diagram of the sectional external structure of the anti-friction protection mechanism of the present utility model;

[0019] Figure 3 It is a schematic diagram of the external structure of the sliding protection component of the present utility model;

[0020] Figure 4 It is a schematic diagram of the external structure of the auxiliary spring-back component of the present utility model;

[0021] Figure 5 It is a schematic diagram of the external structure of the internal penetration probe composition mechanism of the present utility model.

[0022] In the figure: 1. Wire installation port; 2. Internal penetration probe composition mechanism; 21. Eddy current detection probe body; 22. Eddy current detection probe body; 23. Eddy current detection probe body; 3. Anti-friction protection mechanism; 31. Sliding protection component; 311. Anti-friction ring; 312. Limit strip; 313. Slide plate; 314. Auxiliary pulley seat; 32. Auxiliary spring-back component; 321. Limit slide bar; 322. Sliding block; 323. Spring; 324. Rotating arm; 4. Wire body. Specific embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than 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 efforts belong to the scope of protection of the present utility model.

[0024] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] Embodiment 1:

[0026] Please refer to Figures 1-4 , the present utility model provides a technical solution: an internal through-type probe structure for an eddy current detector, including a wire installation port 1, a wire body 4 is arranged inside the wire installation port 1, an internal through-type probe composition mechanism 2 is arranged on the back of the wire installation port 1, and an anti-friction protection mechanism 3 is arranged outside the internal through-type probe composition mechanism 2.

[0027] The anti-friction protection mechanism 3 includes a sliding protection component 31 and an auxiliary spring-back component 32, and the auxiliary spring-back component 32 is arranged inside the sliding protection component 31.

[0028] Furthermore, the sliding protection component 31 includes an anti-friction ring 311, the anti-friction ring 311 is fixedly installed outside the eddy current detection body 21 and the eddy current detection probe body 22, a limiting strip 312 is fixedly installed inside the anti-friction ring 311, a sliding plate 313 is slidably installed outside the limiting strip 312, and an auxiliary pulley seat 314 is arranged on the top of the sliding plate 313, which is convenient for anti-friction protection of the internal through-type probe composition mechanism 2 through the sliding protection component 31.

[0029] Furthermore, an installation groove is opened inside the anti-friction ring 311, and the limiting strip 312 is fixedly installed inside the installation groove opened inside the anti-friction ring 311, which is convenient for installation in the normal state.

[0030] Furthermore, grooves are opened at the corresponding positions of the sliding plate 313 and the limiting strip 312, and the limiting strip 312 is slidably installed inside the grooves opened inside the sliding plate 313, which is convenient for the sliding plate 313 to slide in the normal state.

[0031] Furthermore, the auxiliary spring-back component 32 includes a limiting slide bar 321, the limiting slide bar 321 is fixedly installed inside the anti-friction ring 311, a sliding block 322 is slidably installed outside the limiting slide bar 321, a spring 323 is fixedly installed inside the sliding block 322, and a rotating arm 324 is rotatably installed outside the sliding block 322, which is convenient for the auxiliary spring-back component 32 to assist the movement of the auxiliary pulley seat 314.

[0032] Furthermore, the spring 323 is arranged outside the limiting slide bar 321, and one end of the rotating arm 324 away from the sliding block 322 is rotatably installed with the inner side of the sliding plate 313, which is convenient for the auxiliary pulley seat 314 to spring back in the normal state.

[0033] Embodiment 2:

[0034] Please refer to Figure 5, and in combination with Embodiment 1, it is further obtained that the internal penetration probe assembly mechanism 2 includes an eddy current detection probe body 21. The eddy current detection probe body 21 is arranged on the back of the wire installation port 1. An eddy current detection probe body 22 is arranged on the back of the eddy current detection probe body 21. An eddy current detection probe body 23 is arranged on the back of the eddy current detection probe body 22, which facilitates the eddy current detection of the inner wall of the pipeline through the internal penetration probe assembly mechanism 2.

[0035] During the actual operation process, when this device is used, the eddy current detection probe body 21, the eddy current detection probe body 22 and the eddy current detection probe body 23 are passed through the pipeline. With the assistance of the auxiliary pulley seat 314, the auxiliary pulley seat 314 can be in contact with the inside of the pipeline. Under the rotation of the auxiliary pulley seat 314, the probe smoothly enters the inside of the pipeline. At this time, the eddy current detection probe body 23 can be used to detect the defects on the inner wall of the pipeline. When there is a convex structure inside the pipeline, the auxiliary pulley seat 314 will contact the convex structure. At this time, the slide plate 313 moves downward under the restriction of the limit strip 312. At this time, the spring 323 drives the rotating arm 324 downward, causing the rotating arm 324 to change its angle and bend. At this time, the bottom end of the rotating arm 324 pushes the sliding block 322 inward, and the sliding block 322 squeezes the spring 323. When the auxiliary pulley seat 314 passes through the convex structure, the sliding block 322 slides outside the limit slide rod 321. Under the elasticity of the spring 323, the rotating arm 324 jacks up the slide plate 313 upward, causing the auxiliary pulley seat 314 to return to its original position.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

Claims

1. An inner through-type probe structure for an eddy current detector, comprising a wire installation opening (1), characterized in that: A wire body (4) is arranged inside the wire installation opening (1), an inner-penetrating probe component mechanism (2) is arranged on the back of the wire installation opening (1), and an anti-friction protection mechanism (3) is arranged outside the inner-penetrating probe component mechanism (2); The anti-friction protection mechanism (3) comprises a sliding protection component (31) and an auxiliary rebound component (32); the auxiliary rebound component (32) is arranged inside the sliding protection component (31).

2. The inner through-type probe structure for an eddy current detector according to claim 1, characterized in that: The inner-penetrating probe component structure (2) comprises an eddy current detection probe body (21), the eddy current detection probe body (21) is arranged at the back of the wire installation port (1), the back of the eddy current detection probe body (21) is provided with an eddy current detection probe body (22), and the back of the eddy current detection probe body (22) is provided with an eddy current detection probe body (23).

3. The inner through-type probe structure for an eddy current detector according to claim 1, characterized in that: The sliding protection component (31) comprises an anti-friction ring (311), the anti-friction ring (311) is fixedly mounted on the outside of the eddy current detection probe body (21) and the eddy current detection probe body (22), a limit strip (312) is fixedly mounted inside the anti-friction ring (311), a slide plate (313) is slidably mounted outside the limit strip (312), and an auxiliary pulley seat (314) is arranged on the top of the slide plate (313).

4. The inner through-type probe structure for an eddy current detector according to claim 3, characterized in that: The anti-friction ring (311) is provided with a mounting groove inside, and the limiting strip (312) is fixedly installed inside the mounting groove provided inside the anti-friction ring (311).

5. The inner through-type probe structure for an eddy current detector according to claim 3, characterized in that: Grooves are provided at corresponding positions of the slide plate (313) and the limiting strip (312), and the limiting strip (312) is slidably mounted inside the groove provided inside the slide plate (313).

6. The inner through-type probe structure for an eddy current detector according to claim 1, characterized in that: The auxiliary rebound component (32) comprises a limiting slide bar (321), wherein the limiting slide bar (321) is fixedly mounted inside the anti-friction ring (311), a sliding block (322) is slidably mounted outside the limiting slide bar (321), a spring (323) is fixedly mounted inside the sliding block (322), and a rotating arm (324) is rotatably mounted outside the sliding block (322).

7. The inner through-type probe structure for an eddy current detector according to claim 6, characterized in that: The spring (323) is arranged outside the limiting sliding rod (321), and one end of the rotating arm (324) away from the sliding block (322) is rotatably mounted on the inner side of the sliding plate (313).

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