CN103433940A - Unpacking knife - Google Patents
Unpacking knife Download PDFInfo
- Publication number
- CN103433940A CN103433940A CN2013103955679A CN201310395567A CN103433940A CN 103433940 A CN103433940 A CN 103433940A CN 2013103955679 A CN2013103955679 A CN 2013103955679A CN 201310395567 A CN201310395567 A CN 201310395567A CN 103433940 A CN103433940 A CN 103433940A
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- CN
- China
- Prior art keywords
- knife
- cutter hub
- push rod
- spring
- knife body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to an unpacking knife. The unpacking knife comprises a knife body and a knife head, wherein the knife body comprises a tube cavity, a step is arranged in the front segment of the tube cavity, and the diameter of the front side of the step is smaller than that of the rear side of the step; the knife head consists of a cylinder member, the front end of the cylinder member is cone-shaped, and the cylinder member is coaxially arranged in the tube cavity; a straight trough is axially formed in the side wall of the knife body, a radial push rod is connected to the tail of the knife head, and one end of the radial push rod penetrates through the straight trough and extends to the outer side of the knife body; a first spring is arranged between the step and the radial push rod, and a baffle block is arranged outside the front end of the knife body and is connected with knife body through a second spring. When the radial push rod is pushed forwards, the front end of the knife body stretches out of the front end of the knife body and is used for cutting; when the radial rod is released, the knife body shrinks under the action of the spring, so that the safety is guaranteed; as the stretching length of the knife head is limited by the knife body, products in a box cannot be damaged; the baffle block is connected with the second spring, is suspended on the front end of the knife head to protect the knife head and is pushed away when the knife head stretches out.
Description
Technical field:
The present invention relates to the mankind life article, relate in particular to cutter, particularly a kind of opening knife.
Background technology:
In prior art, often use the cutter carton of unpacking, easily hurt finger and other people, after finishing using, put pocket into, easily forget blade is shunk back to hilt, the personnel that also can cause injure.Simultaneously, cutter is sharper, is easy to break product in Packaging Box during opening.The blade of cutter is thin slice, in use is easy to break.
Summary of the invention:
The object of the present invention is to provide a kind of opening knife, described this opening knife will solve in prior art the cutter for same of unpacking and easily cause injury to personnel or damage easily disconnected technical problem of article in case, blade.
This opening knife of the present invention, comprise cutter hub and cutter head, wherein, described cutter hub in a tubular form, comprise a tube chamber in cutter hub, be provided with a step in the leading portion of described tube chamber, the lumen diameter of step front side is less than the lumen diameter of step rear side, described cutter head consists of a cylinder component, it is conical that the front end of described cylinder component is, cylinder component coaxially is arranged in the tube chamber of cutter hub, cutter hub is provided with vertically a straight trough in its sidewall, the afterbody of cylinder component is connected with a radial push rod, one end of described radial push rod passes and extends to the outside of cutter hub from described straight trough, be provided with first spring between step and radial push rod, the front end of cutter hub is outside equipped with a block, described block is connected with cutter hub by second spring.
Further, an end of the second spring is fixed in cutter hub.
Further, the hardness of cylinder component front end conical section is greater than HRC40.
Operation principle of the present invention is: during use, push away forward radial push rod, the cutter head front end stretches out from the cutter hub front end, for scribing.After finishing using, unclamp radial push rod, cutter head automatically shrinks under spring action, has guaranteed security.The extension elongation of cutter head is limited by cutter hub, can be easy to dismantle sealing tape and can not break product in case.Block is connected with the second spring, is suspended in the cutter head front end, and the protection cutter head, when cutter head stretches out, push block open.
The present invention and prior art are compared, and its effect is actively with obvious.The present invention utilizes conical cutter head orcible entry sealing tape, after cutter head stretches out, is difficult for hurting sb.'s feelings, and between cutter head and cutter hub, is provided with spring, and while not using, cutter hub in the automatic retraction cutter hub, avoids cutter head to hurt sb.'s feelings under spring action; The length of cutter head can arrange flexibly according to the specification of packing case, can prevent that cutter head is long and break article in case.Cutter head the place ahead arranges unsteady block, the protection cutter head.
The accompanying drawing explanation:
Fig. 1 is the structural representation of opening knife of the present invention.
The specific embodiment:
Embodiment 1:
As shown in Figure 1, opening knife of the present invention, comprise cutter hub 1 and cutter head 2, wherein, described cutter hub 1 in a tubular form, comprise a tube chamber in cutter hub 1, be provided with a step in the leading portion of described tube chamber, the lumen diameter of step front side is less than the lumen diameter of step rear side, described cutter head 2 consists of a cylinder component, it is conical that the front end of described cylinder component is, cylinder component coaxially is arranged in the tube chamber of cutter hub 1, cutter hub 1 is provided with vertically a straight trough in its sidewall, the afterbody of cylinder component is connected with a radial push rod 3, one end of described radial push rod 3 passes and extends to the outside of cutter hub 1 from described straight trough, be provided with first spring 4 between step and radial push rod 3, the front end of cutter hub 1 is outside equipped with a block 5, described block 5 is connected with cutter hub 1 by second spring 6.
Further, an end of the second spring 6 is fixed in cutter hub 1.
Further, the hardness of cylinder component front end conical section is greater than HRC40.
The operation principle of the present embodiment is: during use, push away forward radial push rod 3, cutter head 2 front ends stretch out from cutter hub 1 front end, for scribing.After finishing using, unclamp radial push rod 3, cutter head 2 automatically shrinks under spring action, has guaranteed security.The extension elongation of cutter head 2 is subject to cutter hub 1 restriction, can be easy to dismantle sealing tape and can not break product in case.Block 5 is connected with the second spring 6, is suspended in cutter head 2 front ends, and protection cutter head 2, when cutter head 2 stretches out, push block 5 open.
Claims (2)
1. an opening knife, comprise cutter hub and cutter head, it is characterized in that: described cutter hub in a tubular form, comprise a tube chamber in cutter hub, be provided with a step in the leading portion of described tube chamber, the lumen diameter of step front side is less than the lumen diameter of step rear side, described cutter head consists of a cylinder component, it is conical that the front end of described cylinder component is, cylinder component coaxially is arranged in the tube chamber of cutter hub, cutter hub is provided with vertically a straight trough in its sidewall, the afterbody of cylinder component is connected with a radial push rod, one end of described radial push rod passes and extends to the outside of cutter hub from described straight trough, be provided with first spring between step and radial push rod, the front end of cutter hub is outside equipped with a block, described block is connected with cutter hub by second spring.
2. opening knife as claimed in claim 1, it is characterized in that: an end of the second spring is fixed in cutter hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103955679A CN103433940A (en) | 2013-09-03 | 2013-09-03 | Unpacking knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103955679A CN103433940A (en) | 2013-09-03 | 2013-09-03 | Unpacking knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103433940A true CN103433940A (en) | 2013-12-11 |
Family
ID=49687701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103955679A Pending CN103433940A (en) | 2013-09-03 | 2013-09-03 | Unpacking knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103433940A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108438395A (en) * | 2016-08-22 | 2018-08-24 | 徐勤凤 | Flexible bale breaker |
| CN112089488A (en) * | 2020-10-21 | 2020-12-18 | 江南大学附属医院 | Electrotome for breast cancer operation |
| CN116973180A (en) * | 2023-09-20 | 2023-10-31 | 四川省绵阳生态环境监测中心站 | Portable exhaust gas monitoring system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058876U (en) * | 1989-11-03 | 1990-07-04 | 李福祥 | Automatic spring drawing back eletrician's knife |
| CN2354781Y (en) * | 1999-02-03 | 1999-12-22 | 陈岩营 | Improved structure of artist knives |
| US6161290A (en) * | 1997-12-18 | 2000-12-19 | Kyoto Measuring Instruments Corp. | Utility knife |
| CN2423988Y (en) * | 2000-05-12 | 2001-03-21 | 王辰 | Safety tool knife |
| CN202572416U (en) * | 2012-03-31 | 2012-12-05 | 上海昆杰五金工具有限公司 | Automatic rebounding knife |
| CN203485210U (en) * | 2013-09-03 | 2014-03-19 | 延锋伟世通汽车电子有限公司 | Unpacking knife |
-
2013
- 2013-09-03 CN CN2013103955679A patent/CN103433940A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058876U (en) * | 1989-11-03 | 1990-07-04 | 李福祥 | Automatic spring drawing back eletrician's knife |
| US6161290A (en) * | 1997-12-18 | 2000-12-19 | Kyoto Measuring Instruments Corp. | Utility knife |
| CN2354781Y (en) * | 1999-02-03 | 1999-12-22 | 陈岩营 | Improved structure of artist knives |
| CN2423988Y (en) * | 2000-05-12 | 2001-03-21 | 王辰 | Safety tool knife |
| CN202572416U (en) * | 2012-03-31 | 2012-12-05 | 上海昆杰五金工具有限公司 | Automatic rebounding knife |
| CN203485210U (en) * | 2013-09-03 | 2014-03-19 | 延锋伟世通汽车电子有限公司 | Unpacking knife |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108438395A (en) * | 2016-08-22 | 2018-08-24 | 徐勤凤 | Flexible bale breaker |
| CN112089488A (en) * | 2020-10-21 | 2020-12-18 | 江南大学附属医院 | Electrotome for breast cancer operation |
| CN116973180A (en) * | 2023-09-20 | 2023-10-31 | 四川省绵阳生态环境监测中心站 | Portable exhaust gas monitoring system |
| CN116973180B (en) * | 2023-09-20 | 2023-12-08 | 四川省绵阳生态环境监测中心站 | Portable exhaust gas monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131211 |