Ultrasonic flaw detection adjusting mechanism

Abstract

The utility model relates to an ultrasonic flaw detection adjusting mechanism and belongs to the ultrasonic flaw detection adjusting field. Involve the screw rod and locking nut, the screw rod is located in the flaw detection box, and the end of screw rod is fixed on the fixed cover plate of flaw detection box, its characterized in that: the fixed cover plate is opened with fixed hole, and the end of screw rod passes through fixed hole, and locking nut is locked in the end of screw rod from the outside of fixed cover plate, the fixed cover plate side is provided with card, the card with fixed cover plate is detachably connected, and the card with screw rod is the step surface cooperation and forms the limit that prevents the axial movement of screw rod relative to fixed cover plate. The utility model discloses more stable structure, effectively ensures that the screw rod can be reliably fixed after adapting adjustment after replacing product specification.

Description

Technical Field

[0001] This utility model relates to an ultrasonic flaw detection mechanism, specifically an ultrasonic flaw detection adjustment mechanism. Background Technology

[0002] The function of the ultrasonic flaw detection adjustment mechanism: The adjustment mechanism connects to the flaw detection box suspension mechanism. When product specifications need to be changed, adjustments are made through this mechanism to ensure the flaw detection box fits tightly against the object surface, enabling the transmission of ultrasonic signals. The key component of the adjustment mechanism is the lead screw. After a period of use, water and foreign matter can cause adjustments to become difficult, and adjusting via the lead screw can easily lead to screw slippage. The lead screw is fixed by a locking nut; frequent specification changes can cause the locking nut to loosen, resulting in insufficient clamping of the mechanism, poor coupling of the flaw detection signal, and thus false alarms and missed alarms. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an ultrasonic flaw detection adjustment structure that addresses the technical difficulties of unscrewed lead screws and loose locking nuts, which prevent the lead screw from being reliably fixed after adjustment.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows: an ultrasonic flaw detection adjustment mechanism, involving a lead screw and a locking nut. The lead screw is located inside the flaw detection box, and the end of the lead screw is fixed to the fixing cover plate of the flaw detection box. The fixing cover plate has a fixing hole, and the end of the lead screw passes through the fixing hole. The locking nut is locked to the end of the lead screw from the outside of the fixing cover plate. A card is provided on the side of the fixing cover plate. The card is detachably connected to the fixing cover plate. The card and the lead screw have a stepped surface to form a limit to prevent the lead screw from axially moving relative to the fixing cover plate.

[0005] Preferably, the card is located between the fixing cover and the locking nut.

[0006] Preferably, a limiting groove is provided on the surface of the lead screw, and the card is inserted into the limiting groove.

[0007] Preferably, a limiting groove is provided on the surface of the lead screw, and two cards are of the Haver type, which are engaged and locked in the limiting groove.

[0008] Preferably, the card is detachably connected to the fixed cover plate by screws, which facilitates disassembly.

[0009] Compared with the prior art, the advantages of this utility model are as follows: This application effectively solves the technical problem of screw unwinding by adding a detachable card between the fixed cover plate and the locking nut, and using the card to form an axial limit with the screw. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the ultrasonic flaw detection adjustment mechanism in an embodiment of the present invention; Figure 2 This is the fixing structure for the lead screw in this embodiment of the utility model.

[0011] In the diagram, 1 is the lead screw, 2 is the fixed cover plate, 3 is the locking nut, 4 is the clip, and 5 is the limiting groove. Detailed Implementation

[0012] The present invention will be further described in detail below with reference to the accompanying drawings. The embodiments described are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0013] This embodiment relates to an ultrasonic flaw detection adjustment structure, comprising a lead screw 1, a locking nut 3, a clip 4, and a fixing cover plate 2. The lead screw 1 is located inside the flaw detection box, and its end is fixed to the fixing cover plate 2 of the flaw detection box. The fixing cover plate 2 has a fixing hole through which the end of the lead screw 1 passes. The locking nut 3 is locked to the end of the lead screw 1 from the outside of the fixing cover plate 2. The clip 4 is located between the fixing cover plate 2 and the locking nut 3, and is detachably connected to the fixing cover plate 2 by screws.

[0014] A limiting groove 5 is provided on the surface of the lead screw 1. The limiting groove 5 is adjacent to the fixed cover plate 2. The card 2 consists of two pieces, upper and lower, assembled in a Haver-like manner. The two cards are engaged and locked in the limiting groove of the lead screw. The card 4 forms a stepped engagement with the lead screw 1, which limits the axial movement of the lead screw relative to the fixed cover plate.

[0015] The aforementioned adjustment mechanism has a more stable structure, effectively ensuring that the lead screw can be reliably fixed after adjustment when changing product specifications, thus ensuring the transmission of ultrasonic flaw detection signals.

[0016] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. An ultrasonic flaw detection adjustment mechanism, comprising a lead screw and a locking nut, wherein the lead screw is located inside a flaw detection box, and the end of the lead screw is fixed to a fixing cover plate of the flaw detection box, characterized in that: The fixed cover plate has a fixing hole, the end of the lead screw passes through the fixing hole, and the locking nut is locked to the end of the lead screw from the outside of the fixed cover plate. A card is provided on the side of the fixed cover plate. The card is detachably connected to the fixed cover plate. The card and the lead screw have a stepped surface to form a limit to prevent the lead screw from moving axially relative to the fixed cover plate.

2. The ultrasonic flaw detection adjustment mechanism according to claim 1, characterized in that: The card is located between the fixed cover plate and the locking nut.

3. The ultrasonic flaw detection adjustment mechanism according to claim 1, characterized in that: The lead screw surface is provided with a limiting groove, and the card is inserted into the limiting groove.

4. The ultrasonic flaw detection adjustment mechanism according to claim 3, characterized in that: The lead screw surface is provided with a limiting groove, and the two cards are of the Haver type, which are engaged and locked in the limiting groove.

5. The ultrasonic flaw detection adjustment mechanism according to claim 1, characterized in that: The card is detachably connected to the fixed cover plate by screws.

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