CN213259568U

CN213259568U - Cutter with locking device

Info

Publication number: CN213259568U
Application number: CN202021662337.6U
Authority: CN
Inventors: 郑嘉玮
Original assignee: Jiaxing Lijun Hardware Products Co ltd
Current assignee: Jiaxing Lijun Hardware Products Co ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-05-25
Anticipated expiration: 2030-08-11

Abstract

The utility model discloses a cutter with locking device, belong to art designer's sword technical field, aim at providing a blade is difficult to be released easily, the difficult cutter that has locking device who contracts sword and security height that takes place, including the sword shell, the sword groove, promote chunk and blade swing joint and all arrange the sword inslot in, it is equipped with U form spring leaf to promote the chunk, the sword groove is equipped with a plurality of tooth's sockets with U form spring leaf complex, it includes the ejector pad to promote the chunk, base ejector pad and spring, U form spring is arranged in on the base ejector pad, the base ejector pad is connected with the blade, the spring is fixed in on the base ejector pad, ejector pad and base ejector pad sliding connection, ejector pad and spring joint, be equipped with the dop on the tip of circular-arc elasticity tapered end, it includes the breach of advancing of arranging in proper order with the dop cooperation to go up the ejector pad, static conflict face.

Description

Cutter with locking device

Technical Field

The present invention relates to a tool, and more particularly, to a tool with a locking device.

Background

The utility knife or the tool knife is mainly composed of a knife shell, a knife groove, a knife blade and a pushing block and is of a push-pull structure; the pushing block pushes the blade to slide in the blade groove, a plurality of tooth grooves are formed in one side end of the blade groove, and a U-shaped spring piece clamped with the tooth grooves is arranged on the pushing block, so that the blade is positioned; when the utility knife is used, the pushing block is pushed or pulled, so that the spring piece has the tendency of moving forwards or backwards, and the arc-shaped elastic lock head on the spring piece deforms and can slide out of the tooth groove and enter the next tooth groove.

According to the prior art, for the convenience of the push broach for the tooth socket is made smooth enough, then because the blade is sharp, if the blade slides the blade at will in the use, the blade is easily pushed out the sword groove, causes the user to be injured, factor of safety is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a not enough to prior art exists, the utility model aims to provide a blade is difficult by release easily, difficult emergence contract sword and high cutter with locking device of security.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a cutter with a locking device comprises a cutter groove, a pushing block and a cutter blade, wherein the pushing block is movably connected with the cutter blade and is arranged in the cutter groove, the pushing block is provided with a U-shaped spring piece, the cutter groove is provided with a plurality of tooth grooves matched with the U-shaped spring piece, the pushing block comprises an upper pushing block, a base pushing block and a spring, the U-shaped spring is arranged on the base pushing block, the base pushing block is connected with the cutter blade, the spring is fixed on the base pushing block, the upper pushing block is connected with the base pushing block in a sliding mode, the upper pushing block is clamped with the spring, a clamping head is arranged at the end part of the U-shaped spring piece, the upper pushing block comprises an advancing notch, a static contact surface and a retreating notch, the advancing notch, the static; when the pushing block pushes the blade to advance or retreat, the spring deforms and the chuck extends into the advancing notch or the retreating notch.

Further, the base ejector pad includes interconnect's pedestal and card frame, it has the regulation hole with the card frame intercommunication to open on the pedestal, the card frame includes the roof, it has the card hole that corresponds with the regulation hole to open on the roof, it has two bayonets to open on the pedestal, two bayonets and regulation hole intercommunication just arrange the regulation hole both sides respectively in, the both ends of spring are blocked respectively in two bayonets, it includes interconnect's the cap body and slurcam to go up the ejector pad, it has spacing mouthful and U form breach to open on the slurcam, the slurcam passes the card frame and stretches into the regulation hole through the card hole, the roof stretches into U form breach, spring and spacing mouthful joint, the breach advances, static conflict face and retreat the breach and arrange in on the slurcam.

By adopting the technical scheme, the beneficial effects of the utility model are that:

1. when the blade is still, the clamping head is abutted against the static abutting surface, so that the arc-shaped elastic lock head is tightly clamped in the tooth groove, the blade is not easy to move in the cutter groove, and the safety coefficient of the cutter is greatly improved;

2. when the pushing block pushes the blade to move forward or backward, the spring is pressed to deform, and the chuck extends into the forward notch or the backward notch of the base pushing block, so that the arc-shaped elastic locking head on the U-shaped spring piece slides into the other tooth groove from one tooth groove, and the blade extends out or retracts into the cutter groove; the blade is pushed out or pulled back to finish, and the spring resets, thereby enabling the chuck to reset and to be abutted against the static abutting surface again, enabling the blade not to be stressed and slide easily, and greatly improving the safety factor of the cutter.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

FIG. 2 is a schematic view of a sipe configuration.

Fig. 3 is a schematic diagram of the structure of the pushing block.

Fig. 4 is a schematic structural view of the push-up block.

Fig. 5 is a schematic structural view of the base push block.

FIG. 6 is a schematic cross-sectional view of the base push block at A-A.

FIG. 7 is a schematic view of the U-shaped spring plate engaging the pusher plate when the blade is at rest.

FIG. 8 is a schematic view of the U-shaped spring plate engaging the pusher plate when the blade is retracted.

FIG. 9 is a schematic view of the U-shaped spring plate engaging with the pushing plate when the blade is pushed forward.

Detailed Description

Embodiments of the present invention are further described with reference to fig. 1 to 9.

A cutter with a locking device, which has the advantages that a blade is not easy to push out easily, the cutter is not easy to shrink, and the safety is high.

The utility model discloses a concrete implementation scheme: the tool comprises a tool shell 1, a tool groove 2, a pushing block 3 and a blade 4, wherein the pushing block 3 is movably connected with the blade 4 and is arranged in the tool groove 2, the pushing block 3 is provided with a U-shaped spring piece 5, the U-shaped spring piece 5 comprises an arc-shaped elastic lock head 51, the tool groove 2 is provided with a plurality of tooth grooves 21 matched with the arc-shaped elastic lock head 51, the pushing block 3 comprises an upper pushing block 31, a base pushing block 32 and a spring 33, the U-shaped spring 33 is arranged on the base pushing block 32, the base pushing block 32 is connected with the blade 4, the spring 33 is fixed on the base pushing block 32, the upper pushing block 31 is in sliding connection with the base pushing block 32, the upper pushing block 31 is clamped with the spring 33, the end part of the arc-shaped elastic lock head 51 is provided with a clamping head 511, and the upper pushing block 31 comprises an advancing notch.

The working principle is as follows: when the blade 4 is still, the clamping head 511 is abutted against the static abutting surface 312, so that the arc-shaped elastic locking head 51 is tightly clamped in the tooth groove 21, the blade 4 is not easy to move in the cutter groove 2, and the safety coefficient of the cutter is greatly improved;

when the blade 4 is pushed to advance by the pushing block 3, the pushing block 31 slides on the lower slide block at the moment and deforms the spring 33, and meanwhile, the chuck 511 extends into the advancing notch 311, so that the arc-shaped elastic lock head 51 on the U-shaped spring piece slides into the other tooth groove 21 from one tooth groove 21, and the blade 4 is pushed out;

when the blade 4 is pulled to retreat by the pushing block 3, at the moment, the pushing block 31 slides on the lower slide block and deforms the spring 33, and meanwhile, the chuck 511 extends into the retreat gap 313, so that the arc-shaped elastic lock head 51 slides into the other tooth groove 21 from one tooth groove 21, and the blade 4 is retracted;

the blade 4 is pushed and pulled completely, the spring 33 resets, the pushing block 3 is in a static state, and the clamping head 511 resets and is abutted against the static abutting surface 312, so that the blade 4 is not easy to be stressed in the cutter groove 2 to slide, the bidirectional locking of the blade 4 is realized, and the safety factor of the cutter is greatly improved.

The base push block 32 comprises a base body 321 and a clamping frame 322 which are connected with each other, the base body 321 is provided with an adjusting hole 321a communicated with the clamping frame 322, the clamping frame 322 comprises a top plate 322a, the top plate 322a is provided with a clamping hole 322b corresponding to the adjusting hole 321a, the base body 321 is provided with two clamping ports 321b, the two clamping ports 321b are communicated with the adjusting hole 321a and are respectively arranged at two sides of the adjusting hole 321a, two ends of the spring 33 are respectively clamped in the two clamping ports 321b, the upper push block 31 comprises a cap body 314 and a push plate 315 which are connected with each other, the push plate 315 is provided with a limit port 312a and a U-shaped notch 312b, the push plate 315 passes through the clamping frame 322 through the clamping hole 322b and extends into the adjusting hole 321a, the top plate 322a extends into the U-shaped notch 312b, the spring 33 is clamped with the limit port 312a, the advancing notch 311, the static surface 312 and the retreating notch 313 are arranged on the push plate 315, the length direction of the, the limiting opening 312a is clamped in the middle of the spring 33.

When the utility knife is used, the pushing block 31 is pushed to enable the pushing plate 315 to move, the limiting opening 312a on the pushing plate 315 drives the spring 33 to move, the spring 33 is bent and deformed, and the pushing block 31 can be pushed forwards or pulled backwards to enable the pushing plate 315 to bend and deform the spring 33; the top plate 322a is inserted into the U-shaped notch 312b, so that when the pushing plate 315 moves, the top plate 322a is in sliding connection with the U-shaped notch 312b in a matching manner, thereby positioning the pushing plate 315, and limiting the push-up block 31 on the base push block 32, so that the push-up block 31 stably slides; two ends of the spring 33 are respectively and tightly clamped into the two bayonets 321b, so that the spring 33 is fixed; the limiting opening 312a is clamped with the spring 33, so that the spring 33 is matched with the push-up block 31.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the skilled in the art can carry out the common changes and replacements within the technical solution of the present invention.

Claims

1. The utility model provides a cutter with locking device, includes the sword groove, promotes chunk and blade swing joint and all arranges the sword inslot in, promotes the chunk and is equipped with U form spring leaf, the sword groove be equipped with U form spring leaf complex a plurality of tooth's sockets, characterized by: the pushing block comprises an upward pushing block, a base pushing block and a spring, the U-shaped spring is arranged on the base pushing block, the base pushing block is connected with the blade, the spring is fixed on the base pushing block, the upward pushing block is connected with the base pushing block in a sliding mode, the upward pushing block is clamped with the spring, a clamping head is arranged at the end of the U-shaped spring piece, the upward pushing block comprises an advancing notch, a static abutting surface and a retreating notch which are matched with the clamping head and are sequentially arranged,

when the blade is static, the clamping head is abutted against the static abutting surface, and when the pushing block pushes the blade to move forward or move backward, the spring deforms, and the clamping head extends into the forward notch or the backward notch.

2. A tool with a locking device according to claim 1, wherein: the base ejector pad includes interconnect's pedestal and card frame, it has the regulation hole with card frame intercommunication to open on the pedestal, the card frame includes the roof, it has the card hole that corresponds with the regulation hole to open on the roof, it has two bayonets to open on the pedestal, two bayonets and regulation hole intercommunication just arrange the regulation hole both sides respectively in, the both ends of spring are blocked respectively in two blocks, it includes interconnect's the cap body and slurcam to go up the ejector pad, it has spacing mouthful and U form breach to open on the slurcam, the slurcam passes the card frame and stretches into the regulation hole through the card hole, the roof stretches into U form breach, spring and spacing mouthful joint, the breach advances, static conflict face and retreat the breach and all arrange in on the slurcam.