Transverse lock release quick tool changing structure

CN224702073UActive Publication Date: 2026-09-01陈战
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Patent Information

Application Number
CN202522074792.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-25
Publication Date
2026-09-01
Estimated Expiration
2035-09-25

AI Technical Summary

Technical Problem

[0004]现有的上述刀具虽然能够满足基本的使用需求,但是其结构较为复杂,制作成本较高;并且解锁时需要对刀片施加较大的力,会造成使用上的不方便以及不安全,使用起来不够方便、快捷,影响使用效果

Benefits of technology

[0013]采用上述技术方案,本实用新型提供的一种横向退锁速换刀片结构,具有以下有益效果:该横向退锁速换刀片结构中的刀头分别与该刀柄及刀片可拆卸连接,该刀头的内侧安装有弹力内片,该弹力内片上设置有弹力卡接部,该刀片上开设有与该弹力卡接部相适配的刀片卡接凹槽,该刀头的外侧滑动安装有横向退锁件,该横向退锁件的内侧与该弹力卡接部连接,该弹力内片的内侧开设有定位凹槽,该刀片上设置有与该定位凹槽相适配的定位卡扣,通过增加设置弹力内片来与刀片进行卡接,拆卸刀片时通过拨动横向退锁件来带动弹力卡接部脱离刀片卡接凹槽即可,从而方便更换刀片,安装刀片时直接将刀片插入刀头内,使得弹力卡接部卡住刀片卡接凹槽即可,使用起来更加方便、快捷、安全,使用效果好,并且结构较为简单,制作成本较低。

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Abstract

The utility model relates to tool technical field, specifically disclose a transverse retreats lock quick change blade structure, including handle, tool bit and blade, the tool bit is detachably connected with handle and blade respectively, the inside of tool head is installed with elastic inner piece, be provided with elastic clamping portion on elastic inner piece, be provided with blade clamping recess that is compatible with elastic clamping portion on the blade, the outside of tool head is slidably installed with transverse retreats lock spare, the inside of transverse retreats lock spare is connected with elastic clamping portion, the inside of elastic inner piece is provided with positioning recess, be provided with positioning buckle that is compatible with positioning recess on the blade. The utility model through increase setting elastic inner piece to carry out clamping with blade, when disassembling the blade, through the dolly transverse retreats lock spare to drive elastic clamping portion to separate from blade clamping recess, thereby convenient replacement blade, use more convenient, fast, safe, use effectual, and structure is relatively simple, and the production cost is lower.
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Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a transverse unlocking and quick-change cutting tool structure. Background Technology

[0002] A knife is an everyday item used for cutting objects. Its structure generally includes a handle and a blade located at the front of the handle. The blade has a sharp cutting edge. When using it, the user can hold the handle and operate the cutting edge of the blade to cut the object, making the cutting operation convenient.

[0003] A search revealed that Chinese utility model patent CN202421820213.4 discloses a replaceable blade knife, including a handle, a blade holder, and a blade. The blade holder has a groove, a limiting member on the upper side of the groove, and a stop block on the lower side. When the blade is installed in the groove, the upper end of the blade is positioned between the limiting member and the bottom of the groove, while the lower side of the blade abuts against the upper side of the stop block. The blade holder has a first sliding groove, in which a slider is slidably connected. When the blade is installed in the groove, pushing the slider causes the end of the slider to abut against the left side of the blade and disengage from the blade. This utility model allows for the separate removal and replacement of a damaged blade, enabling the handle to be reused without waste, and making blade replacement convenient and quick.

[0004] While the existing knives can meet basic usage needs, their structure is relatively complex and their manufacturing cost is high. Furthermore, unlocking requires applying significant force to the blade, which can cause inconvenience and safety issues, making them less convenient and faster to use and affecting their effectiveness. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a transverse unlocking quick-change blade structure that addresses the above-mentioned defects of the prior art. By adding a spring inner plate to engage with the blade, the blade can be removed by moving the transverse unlocking component to disengage the spring engagement part from the blade engagement groove, thus facilitating blade replacement. This structure is more convenient, faster, and safer to use, has better performance, and is simpler in structure and lower in manufacturing cost.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] A transverse unlocking quick-change blade structure includes a handle, a blade head, and a blade. The blade head is detachably connected to both the handle and the blade. An elastic inner sheet is installed on the inner side of the blade head, and an elastic locking portion is provided on the elastic inner sheet. The blade has a blade locking groove that matches the elastic locking portion. A transverse unlocking member is slidably installed on the outer side of the blade head, and the inner side of the transverse unlocking member is connected to the elastic locking portion. A positioning groove is provided on the inner side of the elastic inner sheet, and a positioning buckle that matches the positioning groove is provided on the blade.

[0008] Preferably, the outer side of the cutter head is provided with a release sliding through hole adapted to the transverse release member, and the transverse release member extends out of the release sliding through hole.

[0009] Preferably, the positioning groove includes a first positioning groove and a second positioning groove, and the positioning buckle includes a first positioning buckle and a second positioning buckle, wherein the first positioning buckle and the second positioning buckle abut against the inner side of the first positioning groove and the second positioning groove, respectively.

[0010] Preferably, the elastic inner sheet has a locking groove adapted to the transverse locking member, and the inner side of the transverse locking member is engaged with the locking groove.

[0011] Preferably, both the tool holder and the tool head are provided with spindle pin through holes, and the tool holder is connected to the tool head through the spindle pin.

[0012] Preferably, the elastic inner sheet is made of stainless steel, and the elastic snap-fit ​​part is integrally connected to the elastic inner sheet.

[0013] By adopting the above technical solution, the transverse unlocking quick-change blade structure provided by this utility model has the following beneficial effects: the blade head in the transverse unlocking quick-change blade structure is detachably connected to the blade holder and the blade. An elastic inner plate is installed on the inner side of the blade head, and an elastic locking part is provided on the elastic inner plate. The blade is provided with a blade locking groove that matches the elastic locking part. A transverse unlocking member is slidably installed on the outer side of the blade head. The inner side of the transverse unlocking member is connected to the elastic locking part. A positioning groove is provided on the inner side of the elastic inner plate, and a positioning buckle that matches the positioning groove is provided on the blade. By adding an elastic inner plate to lock with the blade, the blade can be removed by moving the transverse unlocking member to disengage the elastic locking part from the blade locking groove, thus facilitating blade replacement. When installing the blade, the blade is directly inserted into the blade head so that the elastic locking part locks the blade locking groove. It is more convenient, faster, and safer to use, has good performance, and has a simple structure and low manufacturing cost. Attached Figure Description

[0014] Fig. 1This is an exploded view of the present invention;

[0015] Fig. 2 This is a perspective view of the present utility model;

[0016] In the figure, 1-tool holder, 2-tool head, 3-blade, 4-elastic inner plate, 5-elastic locking part, 6-blade locking groove, 7-lateral unlocking part, 8-positioning groove, 9-positioning buckle, 10-unlocking sliding through hole, 11-unlocking part locking groove, 12-spindle pin through hole, 13-spindle pin. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] like Figs. 1-2As shown, the transverse unlocking quick-change blade structure includes a handle 1, a blade head 2, and a blade 3. The blade head 2 is detachably connected to both the handle 1 and the blade 3. An elastic inner plate 4 is installed on the inner side of the blade head 2, and an elastic locking part 5 is provided on the elastic inner plate 4. The blade 3 has a blade locking groove 6 that matches the elastic locking part 5. A transverse unlocking member 7 is slidably installed on the outer side of the blade head 2, and the inner side of the transverse unlocking member 7 is connected to the elastic locking part 5. A positioning groove 8 is provided on the inner side of the elastic inner plate 4, and a positioning buckle 9 that matches the positioning groove 8 is provided on the blade 3. It can be understood that the end of the handle 1 may have a blade head mounting groove for inserting the blade head 2, the inner side of the blade head 2 may have an inner plate mounting groove for installing the elastic inner plate 4, and the end of the blade head 2 may have a blade mounting groove for inserting the blade 3. Both the blade head 2 and the blade 3 can be made of stainless steel, etc.

[0021] Specifically, the outer side of the blade head 2 is provided with a release sliding through hole 10 adapted to the transverse release member 7, and the transverse release member 7 extends out of the release sliding through hole 10; the positioning groove 8 includes a first positioning groove and a second positioning groove, and the positioning buckle 9 includes a first positioning buckle and a second positioning buckle. The first positioning buckle and the second positioning buckle abut against the inner side of the first positioning groove and the second positioning groove, respectively. Through the cooperation of the positioning buckle and the positioning groove, the installation stability of the blade 3 can be enhanced and misalignment can be avoided; the elastic inner plate 4 is provided with a release member engaging groove 11 adapted to the transverse release member 7, and the inner side of the transverse release member 7 engages with the release member engaging groove 11; both the handle 1 and the blade head 2 are provided with a spindle pin through hole 12, and the handle 1 is connected to the blade head 2 through a spindle pin 13; the elastic inner plate 4 is made of stainless steel, and the elastic engaging part 5 is integrally connected to the elastic inner plate 4. Understandably, when the transverse locking member 7 is pushed, the transverse locking member 7 drives the elastic locking part 5 to move. At this time, the blade 3 can be taken out. When the blade 3 is inserted, the outer side of the blade 3 presses against the elastic locking part 5 and continuously compresses until the blade locking groove 6 is aligned with the elastic locking part 5. At this time, the elastic locking part 5 presses against the inner side of the blade locking groove 6 under its own elastic force, thus completing the installation of the blade 3.

[0022] Understandably, this utility model has a reasonable design and unique structure. By adding an elastic inner piece 4 to engage with the blade 3, the blade 3 can be disassembled by moving the transverse locking piece 7 to disengage the elastic engaging part 5 from the blade engaging groove 6, thus facilitating the replacement of the blade 3. When installing the blade 3, the blade 3 is directly inserted into the blade head 2, so that the elastic engaging part 5 engages with the blade engaging groove 6. It is more convenient, faster, and safer to use, has a good effect, and has a relatively simple structure and low manufacturing cost.

[0023] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A transverse unlocking quick-change blade structure, comprising a blade holder, a blade head, and a blade, wherein the blade head is detachably connected to the blade holder and the blade, characterized in that: An elastic inner sheet is installed on the inner side of the cutter head, and an elastic locking part is provided on the elastic inner sheet. The blade is provided with a blade locking groove that matches the elastic locking part. A transverse unlocking member is slidably installed on the outer side of the cutter head. The inner side of the transverse unlocking member is connected to the elastic locking part. A positioning groove is provided on the inner side of the elastic inner sheet, and a positioning buckle that matches the positioning groove is provided on the blade.

2. The transverse unlocking quick-change blade structure according to claim 1, characterized in that: The outer side of the cutter head is provided with a release sliding through hole adapted to the transverse release member, and the transverse release member extends out of the release sliding through hole.

3. The transverse unlocking quick-change blade structure according to claim 1, characterized in that: The positioning groove includes a first positioning groove and a second positioning groove, and the positioning buckle includes a first positioning buckle and a second positioning buckle. The first positioning buckle and the second positioning buckle abut against the inner side of the first positioning groove and the second positioning groove, respectively.

4. The transverse unlocking quick-change blade structure according to claim 1, characterized in that: The elastic inner sheet has a locking groove that is adapted to the transverse locking member, and the inner side of the transverse locking member is locked onto the locking groove.

5. The transverse unlocking quick-change blade structure according to claim 1, characterized in that: Both the tool holder and the tool head are provided with spindle pin through holes, and the tool holder is connected to the tool head through the spindle pin.

6. The transverse unlocking quick-change blade structure according to claim 1, characterized in that: The elastic inner sheet is made of stainless steel, and the elastic snap-fit ​​part is integrally connected to the elastic inner sheet.

Citation Information

Patent Citations

  • Cutter with replaceable blade

    CN222844159U