Double-spring-plate and double-locking structure for art knife adjuster

Abstract

The invention relates to a double-spring-plate and double-locking structure for an art knife adjuster. The structure comprises a lower adjusting block matched with an art knife blade frame with tooth slots in both of the two sides; two symmetrically-arranged spring plates are fixed on the lower adjusting block; each spring plate is provided with two clamping parts; the two clamping parts of each spring plate are positioned on the two sides of the lower adjusting block, respectively, and are clamped with the tooth slots in the two sides of the art knife blade frame in a matched manner, respectively. The double-spring-plate and double-locking structure for the art knife adjuster, provided by the invention, has the advantages as follows: as the two spring plates and the four clamping parts are arranged, the locking force is large and the adjuster is uneasy to retract during use; gaps between the clamping parts and the tooth slots of the blade frame are offset through the four clamping parts, so that the adjuster has low probability of shaking within the blade frame after being locked; moreover, as the structure is used together with an upper adjusting block of the adjuster in the adjusting process, locking of one spring plate is overcome, so that the pushing force during adjusting is still small.

Description

technical field [0001] The invention relates to a utility knife, in particular to a double-shrapnel double-locking structure of a utility knife adjuster. Background technique [0002] At present, although the thrust force of the utility knife with the shrapnel locking regulator is relatively light during the adjustment process, the locking force is small during use. When the staff uses a little force when cutting, the regulator is easily retracted, and the blade is easy at this time. Fracture, which may cause injury to the staff, and due to problems such as deformation of the shrapnel, the movable gap is large after locking, and the adjuster is easy to shake in the blade holder. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a double-shrapnel double-locking structure of a utility knife adjuster with a relatively large locking force and the adjuster is not easy to shake in the blade frame. [0004] In order to s...

AI Technical Summary

Problems solved by technology

[0002] At present, although the utility knife with the shrapnel locking regulator has a light thrust during the adjustment process, the locking force is small during use. When the staff uses a little force when cutting, the regulator is easily retracted, and the blade is now easy. It may be broken, which may cause injury to the staff, and due to the deformation of the shrapnel, the movable gap is large after locking, and the adjuster is easy to shake in the blade holder

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