Electric spark detector convenient to adjust

Abstract

An electric spark detector convenient to adjust comprises a host, a buzzing module is arranged in the host, the host is connected with an electric brush on an electric brush support through a probe wire, the probe wire penetrates into a handle rod, and the electric spark detector is characterized in that the electric brush support is arranged at one end of a holder section, and the other end of the holder section is connected with the handle rod; the electric brush support comprises a middle fixed part and movable parts arranged on the two sides of the fixed part, connecting rods are arranged on the two sides of the fixed part, and the connecting rods are inserted into holes formed in the side edges of the movable parts. By the adoption of the structure, the purpose of rapid adjustment can be achieved, and defects can be marked in real time in the detection process so that follow-up overhaul treatment operation can be conveniently carried out.

Description

Technical Field

[0001] This utility model relates to the field of electrical spark detection technology, specifically an easily adjustable electrical spark detector. Background Technology

[0002] Electric spark detectors are widely used for defect detection of coated workpieces (such as anti-corrosion coatings for pipelines). The principle is to scan the surface of the workpiece with a high-voltage brush. When defects such as pinholes or cracks exist in the coating, an electric spark is generated between the brush and the substrate, triggering an alarm.

[0003] However, in traditional EDM (Electrical Discharge Machining) instruments, the brush holder angle is fixed, making it difficult to adapt to complex curved surfaces or narrow areas. Frequent manual adjustments to the holder are required, which is cumbersome. Furthermore, the location of detected defects must be manually recorded, which can easily lead to omissions or errors. Additionally, since there are currently two brush shapes, manual brush replacement is necessary for different inspection needs, reducing inspection efficiency. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an easily adjustable electric spark detector that can achieve rapid adjustment and can mark defects in real time during the detection process to facilitate subsequent maintenance and repair work.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an easily adjustable electric spark detector, including a main unit, the main unit having a built-in buzzer module, the main unit and the brush on the brush bracket being connected by a probe wire, the probe wire being inserted into the handle rod, characterized in that: the brush bracket is set at one end of the gimbal section, and the other end of the gimbal section is connected to the handle rod;

[0006] The brush holder includes a fixed part in the middle and movable parts on both sides of the fixed part. Connecting rods are provided on both sides of the fixed part and are inserted into holes opened on the side of the movable part.

[0007] In a preferred embodiment, multiple fixed sections are also provided between the handle rod and the gimbal section.

[0008] In a preferred embodiment, the upper end of the handle rod and the lower end of the gimbal section are both provided with threaded connection grooves, and the two ends of the fixed section are provided with threaded connection posts, which cooperate with the threaded connection grooves to achieve a fixed connection.

[0009] In a preferred embodiment, both the bottom of the threaded connection groove and the top of the threaded connection post are provided with contact pieces, and the probe extending into the handle rod is connected to the contact piece in the threaded connection groove at the upper end of the handle rod.

[0010] The contacts at the upper and lower ends of the fixed section are connected by wires;

[0011] The contact piece in the threaded groove at the lower end of the gimbal section is connected to the brush on the brush bracket via a wire.

[0012] In a preferred embodiment, the brush holder is equipped with an inkjet gun.

[0013] In a preferred embodiment, the handle is equipped with an inclinometer.

[0014] In a preferred embodiment, a limiting plate is provided on the connecting rod portion located inside the side hole of the movable part, and a spring is sleeved on the connecting rod portion between the limiting plate and the bottom of the hole.

[0015] In a preferred embodiment, the gimbal section is provided with a spool, and a traction line is fixed to each of the two movable parts. The traction line passes through the spool and is wound onto the spool provided on the handle rod.

[0016] In a preferred embodiment, the reel employs a ratchet structure to achieve unidirectional rotation for take-up and manual release of the line.

[0017] The electric spark detector provided by this utility model, which is easy to adjust, has the following beneficial effects by adopting the above-described structure:

[0018] (1) The handle length and angle can be adjusted in multiple levels through the gimbal section and the adjustable fixed section, which can adapt to detection scenarios in high altitude or narrow space;

[0019] (2) By the action of winding and unwinding the traction line, the shape of the brush can be switched from strip to arc surface to meet different detection requirements;

[0020] (3) When a defect is detected, the buzzer module will sound an alarm and trigger the inkjet gun to mark the leak point, thereby improving the efficiency of subsequent repairs. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a structural diagram showing the location of the fixing section in this utility model.

[0024] Figure 3 This is a schematic diagram of the brush structure of this utility model.

[0025] Figure 4 This is a schematic diagram of the elevation structure of the brush holder of this utility model.

[0026] In the diagram: 1. Main unit; 2. Grounding wire; 3. Probe wire; 4. Handle lever; 5. Gimbal joint; 6. Brush bracket; 601. Moving part; 7. Brush; 8. Fixed section; 9. Inclinometer; 10. Buzzer module; 11. Threaded connection groove; 12. Threaded connection post; 13. Contact piece; 14. Connecting rod; 141. Limiting plate; 15. Spring; 16. Traction line; 17. Wire spool; 18. Wire reel; 19. Inkjet gun. Detailed Implementation

[0027] Example 1:

[0028] like Figure 1 In the present invention, an easily adjustable electric spark detector includes a main unit 1, which has a built-in buzzer module 10. The main unit 1 and the brush 7 on the brush bracket 6 are connected by a probe wire 3, which is inserted into the handle rod 4. The brush bracket 6 is set at one end of the gimbal section 5, and the other end of the gimbal section 5 is connected to the handle rod 4.

[0029] The brush holder 6 includes a fixed part in the middle and movable parts 601 arranged on both sides of the fixed part. Connecting rods 14 are provided on both sides of the fixed part and are inserted into holes opened on the side of the movable parts 601.

[0030] In a preferred embodiment, a plurality of fixed sections 8 are provided between the handle lever 4 and the gimbal section 5.

[0031] In a preferred embodiment, the upper end of the handle rod 4 and the lower end of the gimbal section 5 are both provided with threaded connection grooves 11, and the two ends of the fixed section 8 are provided with threaded connection posts 12. The threaded connection posts 12 and the threaded connection grooves 11 cooperate to achieve a fixed connection.

[0032] In a preferred embodiment, both the bottom of the threaded connection groove 11 and the top of the threaded connection post 12 are provided with contact pieces 13, and the probe 3 extending into the handle rod 4 is connected to the contact piece 13 in the threaded connection groove 11 at the upper end of the handle rod 4.

[0033] The contact pieces 13 at the upper and lower ends of the fixed section 8 are connected by wires;

[0034] The contact piece 13 in the threaded groove 11 at the lower end of the gimbal section 5 is connected to the brush 7 on the brush bracket 6 via a wire.

[0035] In a preferred embodiment, the brush holder 6 is equipped with an inkjet gun 19.

[0036] In a preferred embodiment, the handle 4 is equipped with an inclinometer 9.

[0037] In a preferred embodiment, a limiting plate 141 is provided on the connecting rod 14 portion located in the side hole of the movable part 601, and a spring 15 is sleeved on the connecting rod 14 portion between the limiting plate 141 and the bottom of the hole.

[0038] In a preferred embodiment, the gimbal section 5 is provided with a spool 17, and a traction line 16 is fixed on each of the two movable parts 601. The traction line 16 passes through the spool 17 and is wound around the spool 18 provided on the handle rod 4.

[0039] In a preferred embodiment, the reel 18 employs a ratchet structure to achieve unidirectional rotation for take-up and manual release of the line.

[0040] The electric spark detector disclosed in this utility model is easy to adjust. During adjustment:

[0041] According to the detection height requirements, a fixed section 8 is added between the gimbal section 5 and the handle rod 4, and is fixed by screwing the threaded connecting post 12 and the threaded connecting groove 11, and the contact piece 13 automatically conducts the circuit.

[0042] Rotating the reel 18 tightens the traction line 16. The traction line pulls the movable part 601 along the connecting rod 14 through the reel 17, so that the brush bracket 6 forms a strip-shaped detection surface. When it is necessary to increase the detection surface area and match the arc surface of the inner wall of the tank to be tested, the reel 18 releases the line (pulling the pawl), so that the spring 15 pushes the two movable parts 601 to unfold and expand the detection surface.

[0043] Adjust the handle to the preset angle using the inclinometer 9 to start the detection.

[0044] The inkjet gun 19 is installed on the brush holder 6. During the inspection process, when the brush 7 contacts the defect and generates an electric spark, the host 1 triggers a buzzer alarm and simultaneously starts the inkjet gun 19 to spray a mark at the defect.

[0045] Based on the above, multiple fixed sections 8 are added to extend the handle. Each fixed section is fixed by a threaded connecting post 12 and a threaded sleeve. The contact piece 13 ensures that the circuit is connected.

Claims

1. An easily adjustable electric spark detector, comprising a main unit (1), wherein the main unit (1) has a built-in buzzer module (10), and the main unit (1) and the brushes (7) on the brush holder (6) are connected by a probe wire (3), the probe wire (3) being inserted into the handle rod (4), characterized in that: The brush bracket (6) is set at one end of the gimbal section (5), and the other end of the gimbal section (5) is connected to the handle rod (4); The brush holder (6) includes a fixed part in the middle and movable parts (601) on both sides of the fixed part. The fixed part is provided with connecting rods (14) on both sides, and the connecting rods (14) are inserted into holes opened on the side of the movable part (601).

2. The easily adjustable electric spark detector according to claim 1, characterized in that: Multiple fixed sections (8) are also provided between the handle rod (4) and the gimbal section (5).

3. The easily adjustable electric spark detector according to claim 2, characterized in that: The upper end of the handle rod (4) and the lower end of the gimbal section (5) are provided with threaded connection grooves (11), and the two ends of the fixed section (8) are provided with threaded connection posts (12). The threaded connection posts (12) and the threaded connection grooves (11) cooperate to achieve a fixed connection.

4. The easily adjustable electric spark detector according to claim 3, characterized in that: The bottom of the threaded connection groove (11) and the top of the threaded connection post (12) are both provided with contact pieces (13), and the probe (3) extending into the handle rod (4) is connected to the contact piece (13) in the threaded connection groove (11) at the upper end of the handle rod (4). The contact pieces (13) at the upper and lower ends of the fixed section (8) are connected by wires; The contact piece (13) in the threaded connection groove (11) at the lower end of the gimbal section (5) is connected to the brush (7) on the brush bracket (6) via a wire.

5. The easily adjustable electric spark detector according to claim 1, characterized in that: The brush holder (6) is equipped with an inkjet gun (19).

6. The easily adjustable electric spark detector according to claim 5, characterized in that: An inclinometer (9) is provided on the handle rod (4).

7. The easily adjustable electric spark detector according to claim 1, characterized in that: A limiting plate (141) is provided on the connecting rod (14) part located in the side hole of the movable part (601), and a spring (15) is sleeved on the connecting rod (14) part between the limiting plate (141) and the bottom of the hole.

8. The easily adjustable electric spark detector according to claim 7, characterized in that: The gimbal section (5) is provided with a spool (17), and a traction line (16) is fixed on each of the two movable parts (601). The traction line (16) passes through the spool (17) and is wound onto the spool (18) provided on the handle rod (4).

9. The easily adjustable electric spark detector according to claim 8, characterized in that: The reel (18) adopts a ratchet structure to realize unidirectional rotation for take-up and manual release of line.

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