CN202685737U - Carving knife capable of automatically retracting knife blade - Google Patents
Carving knife capable of automatically retracting knife blade Download PDFInfo
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- CN202685737U CN202685737U CN 201220221542 CN201220221542U CN202685737U CN 202685737 U CN202685737 U CN 202685737U CN 201220221542 CN201220221542 CN 201220221542 CN 201220221542 U CN201220221542 U CN 201220221542U CN 202685737 U CN202685737 U CN 202685737U
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- knife
- push rod
- head assembly
- cutter head
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Abstract
The utility model relates to a carving knife capable of automatically retracting a knife blade. The carving knife comprises a cutter bit assembly and a retracting device, wherein the top of the cutter bit assembly is provided with a knife clamping groove, and the cutter bit assembly is provided with a first through channel from the knife clamping groove on the top to the bottom of the cutter bit assembly; the retracting device is arranged in the first channel; and the retracting device moves to the knife clamping device along the first channel, bears against the knife blade in the knife clamping groove and finally enables the knife blade to be separated from the knife clamping groove. Compared with the prior art, the knife blade in the knife clamping groove is propped out from the knife clamping groove by the retracting device arranged in the first channel of the cutter bit assembly, thus hands or tweezers are prevented from being directly contacted with the knife blade, the carving knife is convenient to use and good in safety performance, and the service life of the knife blade is increased.
Description
Technical field
The application relates to a kind of cutter, particularly a kind of graver.
Background technology
Graver generally is used for need to having the cutter of multiple different size and purposes to be used at the decorative pattern of the various complexity of surface engraving of the not too hard object such as wood, plasticine, fruit or fretwork model etc.Graver commonly used is generally hilted broadsword, is furnished with a plurality of blades, and complete use need to be used tweezers gripping blade when blade is installed, blade is inserted in the cutter hub again.If without tweezers, will get blade with hand, easily hand is scratched.And sweat stain on hand also can arrive on the blade, so that blade more gets rusty easily, affects the service life of blade.
The utility model content
In order to overcome the defective of prior art, but the utility model discloses a kind of graver of automatic withdrawal sheet, by being arranged on the tool retracting device in the cutter head assembly first passage, blade in the folder cutter groove is ejected from pressing from both sides in the cutter groove, thereby avoided staff or tweezers directly to remove contactor blade, easy to use, security performance is good, and has improved the service life of blade.
The technical solution of the utility model is as follows:
But a kind of graver of automatic withdrawal sheet comprises cutter head assembly, tool retracting device; The cutter head assembly top has folder cutter groove.
Described cutter head assembly has a first passage that connects from top folder cutter groove to the cutter head assembly bottom; Described tool retracting device is arranged in the above-mentioned first passage; Described tool retracting device can eject along the blade that first passage will press from both sides in the cutter groove.
Preferably, described tool retracting device comprises a push rod and connected pushing mechanism at least, and described push rod is at least part of to be arranged in the first passage of above-mentioned cutter head assembly; And described part can be movable along above-mentioned first passage.
Preferably, described graver also comprises handle of a knife, in the inner position from close handle of a knife top port of handle of a knife two passages that communicate is set sequentially: second channel and third channel; The internal diameter of second channel is less than the internal diameter of third channel; Described cutter head assembly is bolted in second channel.
Preferably, described pushing mechanism comprises the withdrawing button of establishing screw thread in one, and described withdrawing button can move along third channel; And the external diameter of withdrawing button is less than the internal diameter of third channel, and greater than the internal diameter of second channel.
Preferably, described push rod is stepped, and it comprises: the third part that is arranged at the first, second portion of cutter head assembly first passage, is spirally connected with the withdrawing button; Wherein the external diameter of second portion is maximum; The external diameter of second portion is not more than the internal diameter of second channel;
Described push rod enters and is arranged in the handle of a knife through second channel and third channel from the handle of a knife top port.
Preferably, the afterbody of second channel arranges two Ka Tai that are used for blocking the push rod second portion at least near the position of third channel; The external diameter of push rod second portion is greater than the internal diameter that the second through hole behind the Ka Tai is set; The external diameter of push rod third part is less than the internal diameter that the second through hole behind the Ka Tai is set.
Preferably, described tool retracting device also comprises the first flexible member that is arranged on the push rod; Described the first flexible member is arranged between the top of the bottom of cutter head assembly and push rod second portion.
Preferably, described second portion is a cylinder table.
Preferably, described pushing mechanism comprises the push button that is arranged on the push rod, and the corresponding push button of described handle of a knife arranges a sliding tray, and described push button can drive push rod and move to pressing from both sides cutter groove direction along the first passage of cutter head assembly in this groove.
Preferably, also comprise the second flexible member for auxiliary push button self-return, described the second flexible member connects respectively push rod bottom and handle of a knife bottom.
Compared with prior art, the beneficial effects of the utility model are as follows:
The utility model ejects the blade in the folder cutter groove, thereby has avoided staff or tweezers directly to remove contactor blade by being arranged on the tool retracting device in the cutter head assembly first passage from pressing from both sides in the cutter groove, easy to use, security performance is good, and has improved the service life of blade.
Description of drawings
But Fig. 1 is the exploded view of the graver of a kind of automatic withdrawal sheet of the utility model specific embodiment;
Fig. 2 is the structure chart of the conventional state of the described graver of the utility model specific embodiment;
Fig. 3 is the cutaway view in the A-A cross section of graver shown in Figure 2;
Fig. 4 is the structure chart of the described graver withdrawing of the utility model specific embodiment state;
Fig. 5 is the cutaway view in the B-B cross section of graver shown in Figure 4.
The specific embodiment
But a kind of graver of automatic withdrawal sheet comprises cutter head assembly, tool retracting device; The cutter head assembly top has folder cutter groove; Described cutter head assembly has a first passage that connects from top folder cutter groove to the cutter head assembly bottom; Described tool retracting device is arranged in the above-mentioned first passage.
Described tool retracting device moves to folder cutter groove direction along first passage, withstands the blade in the folder cutter groove, finally makes blade leave folder cutter groove.
Wherein, described tool retracting device comprises a push rod and connected pushing mechanism at least, and described push rod is at least part of to be arranged in the first passage of above-mentioned cutter head assembly; And described part can be movable along above-mentioned first passage.
The below is further described the utility model with specific embodiment by reference to the accompanying drawings:
Such as Fig. 1 to Fig. 5, but a kind of graver 100 of automatic withdrawal sheet comprises cutter head assembly, tool retracting device, handle of a knife 5.
In the present embodiment, cutter head assembly comprises that knife rest 1, knife rest tighten up frame 2; Knife rest tightens up the outside that frame 2 is sheathed on knife rest 1, is used for after blade is clamped in knife rest, tightening up knife rest, thus fixed blade.
The top of knife rest 1 has the criss-cross folder cutter groove for clamping blade 3.
Above-mentioned knife rest 1 has a first passage 11 that connects from top folder cutter groove to its bottom; Described tool retracting device is arranged in the above-mentioned first passage 11.
Described tool retracting device moves to folder cutter groove direction along first passage, withstands the blade in the folder cutter groove, finally makes blade leave folder cutter groove.
In handle of a knife 5 inner positions from close handle of a knife top port two passages that communicate are set sequentially: second channel 52 and third channel 53; The internal diameter of second channel 52 is less than the internal diameter of third channel 53; The tail end of knife rest 1 is provided with screw thread, and the second channel inboard also is provided with the screw thread with its engagement, kidnaps mechanism by above-mentioned threaded blade and is bolted in second channel 52.
In the present embodiment, tool retracting device comprises a push rod 4 and connected pushing mechanism, and described push rod 4 is at least part of to be arranged in the first passage 11 of above-mentioned knife rest 1; And described part can be along above-mentioned first passage 11 activities.
In the present embodiment, pushing mechanism further comprises: be arranged at the withdrawing button 6 of establishing screw thread in the first flexible member 7 and on the push rod.Withdrawing button 6 can move along third channel 53; And the external diameter of withdrawing button 6 is less than the internal diameter of third channel 53, and greater than the internal diameter of second channel 52.
Push rod 4 is stepped, and it comprises: the third part 43 that is arranged at the first 41, second portion 42 of first passage 11, is spirally connected with withdrawing button 6; Wherein the external diameter of second portion 42 is maximum; The external diameter of second portion 42 is not more than the internal diameter of second channel 52.In the present embodiment, second portion 42 is a cylinder table.
Push rod 4 enters and is arranged in the handle of a knife 5 through second channel 52 and third channel 53 from handle of a knife 5 top port.
The afterbody of the second channel 52 of handle of a knife 5 is oppositely arranged two card platforms 51 that are used for blocking push rod second portion 42 near the position of third channel 53; The external diameter of push rod 4 second portions 42 is greater than the internal diameter that the second through hole behind the Ka Tai is set; The external diameter of push rod 4 third parts 43 is less than the internal diameter that the second through hole behind the Ka Tai is set.
The first flexible member 7 is sheathed on the first 41 of push rod, and is arranged between the top of the bottom of knife rest 1 and push rod second portion 42.
Below in conjunction with accompanying drawing, the use procedure of the utility model embodiment is described:
The conventional state of the graver of the corresponding present embodiment of Fig. 2 and Fig. 3.At this moment, blade snaps in the folder cutter groove.Cutter head assembly is twisted fully with handle of a knife and is in the same place, and knife rest 1 is tightened up frame 2 by knife rest and tightens up, and blade is also tightened up simultaneously, can not move.At this moment, between knife rest 1 and the push rod 4 relative motion can not occur.Withdrawing button 6 can't promote push rod 4 in first passage 11 interior activities.
The withdrawing state of the graver of the corresponding present embodiment of Fig. 4 and Fig. 5.At this moment, need to slightly rotate handle of a knife, itself and cutter head assembly are unclamped slightly, knife rest tightens up the locking effect that frame 2 loosens cutter setting frame and blade, and blade at this moment can be movable.Under the thrust of withdrawing button 6, push rod 4 moves to folder cutter groove along first passage 11, and finally props up blade 3, makes it break away from folder cutter groove.Simultaneously, the first flexible member 7 is compressed.
Need to prove that in the present embodiment, blade is not limited to a kind of, because what use is folder cutter groove, so better various blade easily.
In addition, the structure of the pushing mechanism that present embodiment is lifted only is for example, during implementation, also have a lot of modes, as: as described in pushing mechanism comprise the push button that is arranged on the push rod, be used for the second flexible member of auxiliary push button self-return, the corresponding push button of described handle of a knife arranges a sliding tray, and described push button can drive push rod and move to pressing from both sides cutter groove direction along the first passage of cutter head assembly in this groove.The second flexible member connects respectively push rod bottom and handle of a knife bottom.
About the structure of pushing mechanism, as long as can realize promoting the function that push rod ejects forward blade, the utility model is not made restriction to it.
The utility model preferred embodiment just is used for helping to set forth the utility model.Preferred embodiment does not have all details of detailed descriptionthe, does not limit this utility model yet and only is the described specific embodiment.Obviously, according to the content of this specification, can make many modifications and variations.These embodiment are chosen and specifically described to this specification, is in order to explain better principle of the present utility model and practical application, thereby the technical field technical staff can utilize the utility model well under making.The utility model only is subjected to the restriction of claims and four corner and equivalent.
Claims (10)
1. but the graver of an automatic withdrawal sheet comprises cutter head assembly; The cutter head assembly top has folder cutter groove, it is characterized in that, also comprises tool retracting device;
Described cutter head assembly has a first passage that connects from top folder cutter groove to the cutter head assembly bottom; Described tool retracting device is arranged in the above-mentioned first passage; Described tool retracting device can eject along the blade that first passage will press from both sides in the cutter groove.
2. graver according to claim 1 is characterized in that, described tool retracting device comprises a push rod and connected pushing mechanism at least, and described push rod is at least part of to be arranged in the first passage of above-mentioned cutter head assembly; And described part can be movable along above-mentioned first passage.
3. graver according to claim 1 and 2 is characterized in that, also comprises handle of a knife, in the inner position from close handle of a knife top port of handle of a knife two passages that communicate is set sequentially: second channel and third channel; The internal diameter of second channel is less than the internal diameter of third channel; Described cutter head assembly is bolted in second channel.
4. graver according to claim 3 is characterized in that,
Described pushing mechanism comprises the withdrawing button of establishing screw thread in one, and described withdrawing button can move along third channel; And the external diameter of withdrawing button is less than the internal diameter of third channel, and greater than the internal diameter of second channel.
5. graver according to claim 4 is characterized in that, described push rod is stepped, and it comprises: the third part that is arranged at the first, second portion of cutter head assembly first passage, is spirally connected with the withdrawing button; Wherein the external diameter of second portion is maximum; The external diameter of second portion is not more than the internal diameter of second channel;
Described push rod enters and is arranged in the handle of a knife through second channel and third channel from the handle of a knife top port.
6. graver according to claim 5 is characterized in that,
The afterbody of second channel arranges two Ka Tai that are used for blocking the push rod second portion at least near the position of third channel; The external diameter of push rod second portion is greater than the internal diameter that the second through hole behind the Ka Tai is set; The external diameter of push rod third part is less than the internal diameter that the second through hole behind the Ka Tai is set.
7. graver according to claim 5 is characterized in that, described tool retracting device also comprises the first flexible member that is arranged on the push rod, and described the first flexible member is arranged between the top of the bottom of cutter head assembly and push rod second portion.
8. graver according to claim 5 is characterized in that, described second portion is a cylinder table.
9. graver according to claim 3, it is characterized in that, described pushing mechanism comprises the push button that is arranged on the push rod, and the corresponding push button of described handle of a knife arranges a sliding tray, and described push button can drive push rod and move to pressing from both sides cutter groove direction along the first passage of cutter head assembly in this groove.
10. graver according to claim 9 is characterized in that, also comprises the second flexible member for auxiliary push button self-return, and described the second flexible member connects respectively push rod bottom and handle of a knife bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220221542 CN202685737U (en) | 2012-05-17 | 2012-05-17 | Carving knife capable of automatically retracting knife blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220221542 CN202685737U (en) | 2012-05-17 | 2012-05-17 | Carving knife capable of automatically retracting knife blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202685737U true CN202685737U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220221542 Expired - Fee Related CN202685737U (en) | 2012-05-17 | 2012-05-17 | Carving knife capable of automatically retracting knife blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202685737U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106272567A (en) * | 2016-08-02 | 2017-01-04 | 叶雨玲 | Cutter torn open by portable parcel |
-
2012
- 2012-05-17 CN CN 201220221542 patent/CN202685737U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106272567A (en) * | 2016-08-02 | 2017-01-04 | 叶雨玲 | Cutter torn open by portable parcel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20180517 |