CN220169191U

CN220169191U - Efficient flaw detection probe

Info

Publication number: CN220169191U
Application number: CN202321358886.8U
Authority: CN
Inventors: 王钲清; 周南岐
Original assignee: Changzhou Changchao Electronic Research Institute Co ltd
Current assignee: Changzhou Changchao Electronic Research Institute Co ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2023-12-12
Anticipated expiration: 2033-05-31

Abstract

The utility model provides a high-efficiency flaw detection probe, which comprises a shell, wherein probes which are symmetrically arranged and elastically connected are arranged at two ends of the shell; the casing is hinged with a threading pipe and swings towards the direction of the probe. The utility model ensures that the probe does not generate sliding friction when moving, thereby avoiding scratch; when the probe moves to the flaw detection area, the probe is kept to be attached to the pipe wall, and the accurate and effective flaw detection result is ensured. And the two probes detect simultaneously, so that the flaw detection efficiency can be improved.

Description

Efficient flaw detection probe

Technical Field

The utility model relates to the technical field of flaw detection, in particular to a high-efficiency flaw detection probe.

Background

When flaw detection is performed on a steel pipe, a probe is generally required to be placed in the steel pipe. Conventionally, the probe is mounted on a threading tube and driven by the threading tube so that the probe enters the steel tube.

In order to improve the flaw detection effect, the probe needs to be attached to the inner wall of the steel pipe, so that sliding friction can be generated between the probe and the inner wall of the steel pipe in the inlet and outlet processes, and the detection effect is easily affected by scratch on the outer surface of the probe. If sliding friction is not generated, the sliding friction is difficult to attach to the pipe wall, and the detection accuracy is low.

Therefore, how to ensure that the probe can be attached to the pipe wall during flaw detection while avoiding friction between the probe and the pipe wall becomes a problem to be solved by those skilled in the art.

Disclosure of Invention

In order to solve the technical problems in the background technology, the utility model discloses a high-efficiency flaw detection probe.

The utility model provides a high-efficiency flaw detection probe, which comprises a shell, wherein probes which are symmetrically arranged and elastically connected are arranged at two ends of the shell;

the casing is hinged with a threading pipe and swings towards the direction of the probe.

The probe enters the steel pipe as follows: 1. the threading pipe moves radially to drive the shell to move radially along the steel pipe, so that one probe is retracted, and a space is generated between the other probe and the pipe wall; 2. the threading pipe is axially pushed, so that the shell takes one end which is clung to the pipe wall as a fulcrum, and one end which is far away from the pipe wall moves forwards; 3. the threading pipe moves reversely and radially, the shell is driven to move reversely and radially along the steel pipe, the other probe is retracted, and the previously retracted probe is reset and generates a space with the pipe wall; 4. the threading pipe is axially pushed, so that the shell takes one end which is clung to the pipe wall as a fulcrum, and one end which is far away from the pipe wall moves forwards; and circulating the operation, when the probe moves to the flaw detection area, loosening the threading pipe, and enabling the probe to lean against the pipe wall under the elastic action. The utility model ensures that the probe does not generate sliding friction when moving, thereby avoiding scratch; when the probe moves to the flaw detection area, the probe is kept to be attached to the pipe wall, and the accurate and effective flaw detection result is ensured. And the two probes detect simultaneously, so that the flaw detection efficiency can be improved.

The specific mounting structure of the probe is as follows: the shell is provided with symmetrically arranged perforations, the probe is inserted into the perforation, and the head of the probe protrudes from the perforation.

The specific structure of the elastic connection of the probe is as follows: the shell is also provided with a first oblong hole, and the limit bolt passes through the first oblong hole and is in threaded connection with the probe; the probes are connected through a first spring. The limit bolt is inserted into the first oblong hole and used for mounting and telescopic limiting of the probe.

The articulated concrete structure of threading pipe does: the shell is provided with a second oblong hole, and two sides of the second oblong hole are respectively provided with a through hole and a threaded hole; the head of the threading pipe is inserted into the second oblong hole; the screw rod sequentially passes through the through hole and the threading pipe and is in threaded connection with the threaded hole. The second oblong hole is used for limiting the swing of the threading pipe.

The general electric wire runs through the threading pipe and then is connected with the probe, so that the disassembly and assembly are difficult, the problem is further improved and solved, in particular, the tail end of the threading pipe is provided with a connector, one end of the connector is connected with the electric wire, and the electric wire passes through the threading pipe and is connected with the probe. The connectors are matched male connectors and female connectors, one connector is arranged on the threading pipe, and the other connector is sequentially connected with the electric wire and the flaw detector. When in use, the male and female connectors can be spliced for use, and the operation and the use are convenient.

The stability of the pin and box joint grafting is directly influenced by the position stability of the joint, and based on the stability, the further design is that: the joint is installed at the tail end of the threading pipe through the second spring and is locked and fixed with the threading pipe through the locking nut in a threaded connection mode. The method comprises the following steps: the inside joint of tail end of threading pipe has the jump ring, and the inner end of joint is pegged graft in the threading intraductal to be connected with the jump ring through the second spring.

Because the electric wire of joint inner end is the tie point, the electric leakage leads to the threading pipe circular telegram easily to initiate the incident, based on this, further improvement lies in: the inner end of the joint is also sleeved with a flexible and insulating sleeve, and the second spring is connected with the clamp spring and the sleeve.

If the smooth surface is connected with the smooth surface, the joint is difficult to be inserted into the sleeve, so that the problem is further improved and solved, and particularly, the inner end of the joint is provided with external threads. The arrangement is that the joint is rotated along the screw thread direction, and the inner end of the joint can be inserted into the sleeve.

The concrete structure of the lock nut is as follows: the end part of the lock nut is provided with an inward convex clamping ring for clamping the convex ring of the outer wall of the joint.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a front cross-sectional view of the present utility model, with portions broken away;

FIG. 3 is a cross-sectional view of A-A of FIG. 2;

fig. 4 is an enlarged view at B in fig. 2;

FIG. 5 is a schematic structural view of the housing;

in the figure: 1. a housing; 2. a probe; 3. a threading tube; 4. perforating; 5. a first oblong hole; 6. a limit bolt; 7. a first spring; 8. a second oblong hole; 9. a through hole; 10. a threaded hole; 11. a screw; 12. a joint; 13. a second spring; 14. a lock nut; 15. clamping springs; 16. a sleeve; 17. a clasp; 18. a convex ring; 19. a first side; 20. a second side.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.

Embodiment one:

as shown in fig. 1 and 2, the utility model relates to a high-efficiency flaw detection probe, which comprises a shell 1, wherein two symmetrically arranged cambered surfaces are arranged on the shell, a through hole 4 is formed in the cambered surface, the probe 2 is inserted into the through hole 4, and the outer side surface of the probe is also arc-shaped and protrudes out of the through hole 4. The first spring 7 is also arranged in the shell 1, and two ends of the first spring are respectively connected with the probe 2 to realize elastic connection of the probe 2.

As shown in fig. 3 and 5, the casing 1 is provided with two side surfaces connected with the end parts of the cambered surface, and is provided with first side surfaces 19, each first side surface 19 is provided with two first oblong holes 5 which are symmetrically arranged, and the limit bolts 6 penetrate through the first oblong holes 5 and are in threaded connection with the probe 2. The limit bolt 6 is inserted into the first oblong hole 5 and used for mounting and telescopic limiting of the probe 2.

The shell 1 is also provided with two side surfaces connected with the side parts of the cambered surface, which are set as second side surfaces 20, wherein one of the second side surfaces 20 is provided with a second oblong hole 8, and two sides of the second side surface are respectively provided with a through hole 9 and a threaded hole 10. The head of the threading tube 3 is inserted into the second oblong hole 8; the screw 11 sequentially passes through the through hole 9 and the threading pipe 3 to be in threaded connection with the threaded hole 10, so that the threading pipe 3 is hinged and can swing towards the direction of the probe 2. The second oblong hole 8 is used for limiting the swing of the threading tube 3.

The probe 2 enters the steel pipe as follows: 1. the threading pipe 3 moves radially to drive the shell 1 to move radially along the steel pipe, so that one probe 2 is retracted, and a space is generated between the other probe 2 and the pipe wall; 2. the threading pipe 3 is axially pushed, so that the shell 1 moves forwards by taking one end which is clung to the pipe wall as a fulcrum and the other end which is far away from the pipe wall; 3. the threading pipe 3 moves reversely and radially, the shell 1 is driven to move reversely and radially along the steel pipe, the other probe 2 is retracted, and the previously retracted probe 2 is reset and generates a space with the pipe wall; 4. the threading pipe 3 is axially pushed, so that the shell 1 moves forwards by taking one end which is clung to the pipe wall as a fulcrum and the other end which is far away from the pipe wall; with the above operation cycled, when the probe 2 moves to the flaw detection area, the threading tube 3 is loosened, and the probe 2 abuts against the tube wall under the action of elasticity. The utility model ensures that the probe 2 does not generate sliding friction when moving, thereby avoiding scratch; when the probe 2 moves to the flaw detection area, the probe is kept to be attached to the pipe wall, and the flaw detection result is ensured to be accurate and effective. And the two probes 2 detect simultaneously, so that the flaw detection efficiency can be improved.

Embodiment two:

the difference from the first embodiment is that: the tail end of the threading tube 3 is provided with a joint 12, one end of which is connected with a wire, and the wire passes through the threading tube 3 and is connected with the probe 2. The concrete structure is as follows: as shown in fig. 4, a clamp spring 15 is clamped inside the tail end of the threading pipe 3, and the inner end of the joint 12 is inserted into the threading pipe 3 and connected with the clamp spring 15 through a second spring 13. The tail end of the threading tube 3 is provided with a screw thread and is connected with a locking nut 14 in a screw thread manner. The end of the lock nut 14 is provided with an inward convex snap ring 17 for clamping a convex ring 18 on the outer wall of the joint 12, so that the joint 12 is fixed.

The connectors 12 are matched male connectors 12 and female connectors 12, wherein one connector 12 is arranged on the threading tube 3, and the other connector 12 is connected with an electric wire and a flaw detector in sequence. When in use, the male and female connectors 12 can be spliced for use, and the operation and the use are convenient.

Embodiment III:

compared with the embodiment, the difference is that: the inner end of the joint 12 is also sleeved with a flexible and insulating sleeve 16, and the second spring 13 is connected with a clamping spring 15 and the sleeve 16. The sleeve 16 plays a role in protecting the wire connector 12, so that electric leakage is avoided at the joint of the wire and the connector 12, and the threading tube 3 is electrified, so that safety accidents are caused.

Embodiment four:

compared with the three phases of the embodiment, the difference is that: the inner end of the joint 12 is provided with external threads. By means of the arrangement, the inner end of the joint 12 can be inserted into the sleeve 16 by rotating the joint 12 along the thread direction, so that the sleeve 16 and the joint 12 can be conveniently connected and fixed.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims

1. The utility model provides a high-efficient probe of detecting a flaw which characterized in that: comprises a shell (1), and probes (2) which are symmetrically arranged and elastically connected are arranged at two ends of the shell;

the casing (1) is hinged with a threading pipe (3) and swings towards the direction of the probe (2).

2. The high-efficiency flaw detection probe according to claim 1, wherein: the shell (1) is provided with symmetrically arranged through holes (4), the probe (2) is inserted into the through holes (4), and the head of the probe protrudes from the through holes (4).

3. A high efficiency inspection probe according to claim 2, wherein: the shell (1) is also provided with a first oblong hole (5), and a limit bolt (6) passes through the first oblong hole (5) and is in threaded connection with the probe (2);

the probes (2) are connected through a first spring (7).

4. The high-efficiency flaw detection probe according to claim 1, wherein: a second oblong hole (8) is formed in the shell (1), and a through hole (9) and a threaded hole (10) are respectively formed in two sides of the second oblong hole;

the head of the threading pipe (3) is inserted into the second oblong hole (8);

the screw rod (11) sequentially penetrates through the through hole (9) and the threading pipe (3) and is in threaded connection with the threaded hole (10).

5. The high-efficiency flaw detection probe according to claim 1, wherein: the tail end of the threading pipe (3) is provided with a joint (12), one end of the threading pipe is connected with an electric wire, and the electric wire passes through the threading pipe (3) to be connected with the probe (2).

6. The high-efficiency flaw detection probe according to claim 5, wherein: the connector (12) is arranged at the tail end of the threading pipe (3) through a second spring (13), and is in threaded connection, locking and fixing with the threading pipe (3) through a locking nut (14).

7. The high-efficiency flaw detection probe according to claim 6, wherein: the tail end of the threading pipe (3) is internally clamped with a clamp spring (15), and the inner end of the joint (12) is inserted into the threading pipe (3) and connected with the clamp spring (15) through the second spring (13).

8. The high-efficiency inspection probe according to claim 7, wherein: the inner end of the joint (12) is also sleeved with a flexible and insulating sleeve (16), and the second spring (13) is connected with the clamp spring (15) and the sleeve (16).

9. The high-efficiency flaw detection probe according to claim 8, wherein: the inner end of the joint (12) is provided with external threads.

10. The high-efficiency inspection probe according to claim 7, wherein: the end part of the lock nut (14) is provided with an inward convex clamping ring (17) which is used for clamping a convex ring (18) on the outer wall of the joint (12).