CN114083581B - Multifunctional telescopic insulating tool - Google Patents
Multifunctional telescopic insulating tool Download PDFInfo
- Publication number
- CN114083581B CN114083581B CN202111371486.6A CN202111371486A CN114083581B CN 114083581 B CN114083581 B CN 114083581B CN 202111371486 A CN202111371486 A CN 202111371486A CN 114083581 B CN114083581 B CN 114083581B
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- Prior art keywords
- clamp
- tool
- locking
- block
- telescopic
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B11/00—Hand knives combined with other implements, e.g. with corkscrew, with scissors, with writing implement
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Knives (AREA)
Abstract
The application discloses a multifunctional telescopic insulating tool, which comprises: a tool body, a clamp and a telescopic knife; the clamp includes: the clamp body and the clamp slide block; the end part of the tool main body is provided with a clamp body chute, and the top part of the tool main body is provided with a slide block chute communicated with the clamp body chute; the pliers body can be arranged in the pliers body sliding groove in a sliding way, and the pliers body is provided with a locking groove; the top of the clamp slide block can be arranged in the slide groove of the slide block in a sliding way, and the bottom of the clamp slide block is provided with a locking block in locking fit with the locking groove; the top of the clamp slide block is used for driving the bottom to enter and exit the locking groove; the telescopic knife is arranged on the tool knife main body in a telescopic way. By arranging the telescopic knife, the telescopic knife can be contracted to the tool knife without using the telescopic knife, so that the safety can be improved; through setting up clamp slider and setting up the locking groove on the body of a clamp, can lock the body of a clamp on the worker sword main part, drive clamp slider roll-off locking groove when needs use and can take out the clamp, realize integrating on the worker sword main part to a plurality of instruments.
Description
Technical Field
The application relates to the technical field of power maintenance tools, in particular to a multifunctional telescopic insulating tool.
Background
In the process of maintaining the electric power, electricians need to use a plurality of tools, and the existing tools have single functions and cannot provide a plurality of purposes for users; in addition, when the existing knife is placed in a tool bag or other equipment, the knife blade can slide out by itself, and the risk of injury is caused.
Disclosure of Invention
Therefore, the application aims to provide a multifunctional telescopic insulating tool for solving the problems that the existing tool is single in function and has safety risks.
In order to achieve the technical purpose, the application provides a multifunctional telescopic insulating tool, which comprises: a tool body, a clamp and a telescopic knife;
the clamp includes: the clamp body and the clamp slide block;
the end part of the tool main body is provided with a clamp body chute, and the top of the tool main body is provided with a slide block chute communicated with the clamp body chute;
the clamp body can be arranged in the clamp body sliding groove in a sliding manner, and a locking groove is formed in the clamp body;
the top of the clamp slide block can be slidably arranged in the slide groove of the slide block, and the bottom of the clamp slide block is provided with a locking block in locking fit with the locking groove;
the top of the clamp slide block is used for driving the bottom to enter and exit the locking groove;
the telescopic knife is arranged on the tool knife main body in a telescopic way.
Further, the clamp body comprises two clamp bars;
the two clamp rods are provided with the locking grooves;
the bottom of the clamp sliding block is provided with the locking blocks towards two sides;
the cross sections of the locking groove and the locking block are T-shaped.
Further, the telescopic knife includes: the cutter body and the connecting block;
the cutter body is detachably connected with the connecting block;
the tool body is provided with a tool body chute;
the connecting block is slidably arranged in the blade body sliding groove.
Further, the telescopic knife further comprises: a screw;
screw holes are formed in the connecting blocks;
the screw rod is rotatably arranged on the tool body and is in threaded connection with the screw hole, and the screw rod is used for driving the connecting block to slide on the tool body sliding groove.
Further, the telescopic knife further comprises: a control lever;
the joystick includes: the clamping block and the rotating ring;
the rotating ring is rotatably arranged on the tool main body, is positioned at the front end of the screw rod and is arranged in a sliding way along the axial direction of the screw rod;
the clamping block is fixedly connected with the rotating ring;
the front end of the screw is provided with a clamping groove which is in clamping fit with the clamping block;
the rotating ring is used for driving the clamping block to enter and exit the clamping groove, and an anti-slip ring is arranged on the periphery of the rotating ring.
Further, a guide hole is formed in the front end of the screw;
the clamping block is connected with a guide rod extending into the guide hole.
Further, the device also comprises a pushing handle;
the pushing handle is in a shape of a Chinese character 'zhong', the middle part of the pushing handle is sleeved on the rotating ring, and the two ends of the pushing handle extend outwards to form an extension part.
Further, the connecting block is provided with a perforation, a blade locking block and a sliding rod;
the front end of the cutter body is provided with a cutter body locking groove matched with the cutter body locking piece;
the perforation is used for allowing the front end of the cutter body to extend in;
the blade locking piece is arranged along the sliding rod in a sliding way;
the slide bar intersects the perforated portion.
Further, the screw driver is also included;
the screwdriver is rotatably connected with the tool main body;
the tool bit body is provided with a screw bit groove for placing the screw bit.
Further, the test pencil is also included;
the test pencil is rotatably arranged and connected with the tool main body;
and a test pencil groove for placing the test pencil is formed in the tool main body.
From the above technical scheme, the application provides a multifunctional telescopic insulating tool, which comprises: a tool body, a clamp and a telescopic knife; the clamp includes: the clamp body and the clamp slide block; the end part of the tool main body is provided with a clamp body chute, and the top of the tool main body is provided with a slide block chute communicated with the clamp body chute; the clamp body can be arranged in the clamp body sliding groove in a sliding manner, and a locking groove is formed in the clamp body; the top of the clamp slide block can be slidably arranged in the slide groove of the slide block, and the bottom of the clamp slide block is provided with a locking block in locking fit with the locking groove; the top of the clamp slide block is used for driving the bottom to enter and exit the locking groove; the telescopic knife is arranged on the tool knife main body in a telescopic way. By arranging the telescopic knife, the telescopic knife can be contracted to the tool knife without using the telescopic knife, so that the safety can be improved; through setting up clamp slider and setting up the locking groove on the body of a clamp, can lock the body of a clamp on the worker sword main part, drive clamp slider roll-off locking groove when needs use and can take out the clamp, realize integrating on the worker sword main part to a plurality of instruments.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the application, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a top perspective view of a multifunctional telescoping insulating knife according to an embodiment of the present application;
FIG. 2 is a semi-sectional perspective view of a multifunctional telescopic insulating knife according to an embodiment of the present application;
FIG. 3 is a diagram of a clamp and clamp slider of a multifunctional telescopic insulating tool according to an embodiment of the present application;
fig. 4 is a disassembled view of a connecting block and a cutter body of a multifunctional telescopic insulating cutter according to an embodiment of the present application;
fig. 5 is a telescopic knife assembly diagram of a multifunctional telescopic insulating knife according to an embodiment of the present application;
FIG. 6 is a diagram showing the disassembly of the screw and the operating lever of the multifunctional telescopic insulating tool according to the embodiment of the present application;
fig. 7 is a bottom perspective view of a multifunctional telescopic insulating knife according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the application, are intended to be within the scope of the claimed application based on embodiments of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the embodiments of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In describing embodiments of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, interchangeably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the above terms in embodiments of the present application will be understood in detail by those of ordinary skill in the art.
Referring to fig. 1 to 3, a multifunctional telescopic insulating tool according to an embodiment of the present application includes: a tool main body 1, a clamp 2 and a telescopic knife 3; the clamp 2 includes: a clamp body 21 and a clamp slider 22; the end part of the tool body 1 is provided with a clamp body chute 11, and the top part of the tool body is provided with a slide block chute 12 communicated with the clamp body chute; the clamp body 21 is slidably arranged in the clamp body chute 11, and a locking groove 213 is arranged on the clamp body 21; the top of the clamp slide block 22 is slidably arranged in the slide block chute 213, and the bottom is provided with a locking block 221 which is in locking fit with the locking groove 213; the top of the clamp slide 22 is used for driving the bottom to enter and exit the locking groove 213; the telescopic knife 3 is arranged on the tool body 1 in a telescopic way.
The top of the clamp slider 22 can be pushed to enable the locking block 211 to be in locking fit with the locking groove 213, so that the clamp 2 is fixed on the tool body 1; wherein, the top of clamp slider 22 can carry out anti-skidding treatment, is convenient for the staff to promote.
Specifically, the clamp body 21 includes two clamp bars 211 and two clamp heads 212; the clamp bars 211 are fixedly connected with the clamp heads 212 in a one-to-one correspondence manner; the two clamp bars 211 are hinged to each other.
In this embodiment, the two clamp bars 212 are provided with locking grooves 213; the bottom of the clamp slide block 22 is provided with locking blocks 221 towards both sides; the cross sections of the locking groove 213 and the locking block 221 are T-shaped.
Specifically, the width of the bottom of the clamp slider 22 corresponds to the width of the two clamp bars 212 when they are combined, so that the two locking blocks 221 of the bottom of the clamp slider 22 can slide into the locking grooves 213 of the two clamp bars 212 at the same time. When the locking piece 221 slides into the locking groove 213, the clamp bar 212 is locked and fixed by the T-shaped locking piece 221 and cannot be opened to both sides.
Further, referring to fig. 4, the telescopic knife 3 includes: a blade 31 and a connecting block 32; the blade 31 is detachably connected with the connecting block 32; the tool body 1 is provided with a tool body chute 13; the connecting block 32 is slidably disposed in the blade chute 13.
Specifically, referring to fig. 4 and 5, cutter teeth are provided on the cutter body 31. The blade 31 and the connecting block 32 are detachably connected, and the blade 31 can be replaced when needed.
In the present embodiment, the blade 31 and the connecting block 32 are detachably connected in such a way that a perforation 321, a blade locking piece 322 and a sliding rod 323 are arranged on the connecting block 32; the front end of the blade 31 is provided with a blade locking groove 311 matched with the blade locking piece 322; the through hole 321 is used for the front end of the cutter body 31 to extend in; blade lock piece 322 is slidably disposed along slide bar 323; the slide bar 323 partially intersects the perforations 321.
When the blade 31 is fixedly connected with the connecting block 32, the front end of the blade 31 extends into the through hole 321, and the blade locking piece 322 slides into the blade locking groove 311, so that the blade 31 cannot slide out of the through hole 321. Accordingly, when the blade 31 needs to be replaced, the blade lock piece 322 is slid along the slide bar 323 so that the blade lock piece 322 slides out of the blade lock groove 311, and the blade 31 can slide out of the through hole 321. Wherein, the sliding rod 323 can be sheathed with a spring to provide restoring force for the blade locking piece 322.
Further, the telescopic knife 3 further includes: a screw 33; the connecting block 32 is provided with screw holes 324; the screw 33 is rotatably disposed on the tool body 1 and is in threaded connection with the screw hole 324, so as to drive the connecting block 32 to slide on the tool body chute 13.
Specifically, in the present embodiment, the control of the sliding out and the sliding in of the blade body 31 is realized by rotating the screw 33, so that compared with the manner of directly pushing the connecting block 32 to slide, the sliding out of the blade body 31 from the blade body chute 13 due to shaking or the like can be avoided in the process that the worker drives the blade body 1 to move.
Further, referring to fig. 5 and 6, the telescopic knife 3 further includes: a lever 34; the lever 34 includes: the clamping block 341 and the rotating ring 342; the rotating ring 342 is rotatably arranged on the tool body 1, is positioned at the front end of the screw 33, and is slidably arranged along the axial direction of the screw 33; the clamping block 341 is fixedly connected with the rotating ring 342; the front end of the screw 33 is provided with a clamping groove 332 which is in clamping fit with the clamping block 341; the rotating ring is used for driving the clamping block 341 to enter and exit the clamping groove 332, and an anti-slip ring is arranged on the periphery of the rotating ring 342.
Through the slidable rotating ring 342, when the blade 31 is required to slide out, the rotating ring 342 can be pushed to slide, so that the clamping block 341 is clamped with the clamping groove 332, and then the screw 33 can be driven to rotate through rotating the rotating ring 342 to realize the sliding out of the blade 31. When the blade 31 is not required to slide, the rotating ring 342 can be pushed to separate the clamping block 341 from the clamping groove 332, so that the blade 31 can slide out due to false touch of a worker, and the safety is improved.
Wherein, the front end of the screw 33 is provided with a transmission block 331, the clamping groove 331 may be disposed on the transmission block 331, and a spring may be disposed in the clamping groove 331 for providing a restoring force for the clamping block 341.
In this embodiment, the clamping groove 331 may be a cylindrical groove, and a plurality of circumferentially distributed square groove holes are disposed on the wall of the cylindrical groove. Correspondingly, the clamping block 341 is cylindrical, and a plurality of square blocks corresponding to the square groove holes are arranged on the circumference.
Further, the front end of the screw 33 is provided with a guide hole 333; the fixture block 341 is connected with a guide rod 344 extending into the guide hole 333.
By the guide bar 344, the operating bar 34 is prevented from being separated from the screw 33, and the connection of the latch 341 and the latch groove 332 is provided with a guide.
Further, the handle 343 is also pushed; the pushing handle 343 is shaped like a Chinese character 'zhong', the middle part is sleeved on the rotating ring 342, and the two ends of the pushing handle extend outwards to form extension parts.
The push handle 343 may be provided to facilitate a worker pushing the rotating ring 342.
Further, the electric test pencil also comprises a screwdriver 4 and an electric test pencil 5; the screwdriver 4 is rotatably connected with the screwdriver main body 1; the tool body 1 is provided with a screw driver slot 14 into which the screw driver 4 is placed. The test pencil 5 is rotatably connected with the tool main body 1; the electrotome main body 1 is provided with a test pencil groove 15 into which the test pencil 5 is arranged.
In the use process of the multifunctional telescopic insulating tool provided by the embodiment, if the screwdriver 4 or the test pencil 5 is required to be used, the screwdriver 4 and the test pencil 5 can be directly rotated out of the screwdriver grooves 14 and the test pencil grooves 15 on two sides of the tool main body 1 to be used, and when the clamp 2 is required to be used, the clamp slide block 22 is firstly slid forwards along the slide block slide groove 12 on the rear side of the top of the tool main body 1, so that two sides of the bottom of the clamp slide block 22 slide out from the locking grooves 213 on the inner sides of the two groups of clamp rods 211, the limiting effect on the clamp rods 211 is eliminated, the clamp 2 can be operated by holding the clamp rods 211 by hands, after the tool main body 1 is used, the clamp rods 211 can be retracted to two sides of the tool main body 1, the clamp 2 is reset, then the clamp slide block 22 backwards, and the two groups of clamp rods 211 are limited by the cooperation of the clamp slide block 22 and the locking grooves 213 on the inner sides of the two groups of the clamp rods 211, so that the clamp rods 211 are prevented from being unfolded when the tool main body 211 is not used, on one hand, the scratch of a user is avoided, or the tool main body 211 is prevented from being scratched, and on the other hand, and the tool is convenient to use of the tool main body is convenient to be operated on two sides. When the telescopic knife 3 is needed, the pushing handle 343 is pushed to enable the clamping block 341 to slide forwards, the clamping block 341 is inserted into the clamping groove 331, then the rotating ring 342 is rotated to drive the transmission screw 33 to rotate, and the transmission screw 33 drives the connecting block 32 and the knife body 31 to slide forwards along the T-shaped knife body sliding chute 13 at the bottom of the knife body 1. After the rotating ring 342 is released, the clamping block 341 is pushed out of the clamping groove 331 under the action of the spring in the transmission block 331, so that the clamping block 341 is disconnected from the transmission block 331, and the knife body 31 is driven to move by the false touch, thereby increasing the safety of the device.
While the application has been described in detail with reference to the examples, it will be apparent to those skilled in the art that the foregoing description of the preferred embodiments of the application may be modified or equivalents may be substituted for elements thereof, and that any modifications, equivalents, improvements or changes will fall within the spirit and principles of the application.
Claims (9)
1. A multi-functional flexible insulation worker sword, its characterized in that includes: a tool body, a clamp and a telescopic knife;
the clamp includes: the clamp body and the clamp slide block;
the end part of the tool main body is provided with a clamp body chute, and the top of the tool main body is provided with a slide block chute communicated with the clamp body chute;
the clamp body can be arranged in the clamp body sliding groove in a sliding manner, and a locking groove is formed in the clamp body;
the top of the clamp slide block can be slidably arranged in the slide groove of the slide block, and the bottom of the clamp slide block is provided with a locking block in locking fit with the locking groove;
the top of the clamp slide block is used for driving the bottom to enter and exit the locking groove;
the telescopic knife is arranged on the tool knife main body in a telescopic way;
the clamp body comprises two clamp bars;
the two clamp rods are provided with the locking grooves;
the bottom of the clamp sliding block is provided with the locking blocks towards two sides;
the cross sections of the locking groove and the locking block are T-shaped.
2. The multi-functional telescopic insulating knife according to claim 1, wherein the telescopic knife comprises: the cutter body and the connecting block;
the cutter body is detachably connected with the connecting block;
the tool body is provided with a tool body chute;
the connecting block is slidably arranged in the blade body sliding groove.
3. The multi-functional telescopic insulating knife according to claim 2, wherein the telescopic knife further comprises: a screw;
screw holes are formed in the connecting blocks;
the screw rod is rotatably arranged on the tool body and is in threaded connection with the screw hole, and the screw rod is used for driving the connecting block to slide on the tool body sliding groove.
4. A multi-function telescopic insulating knife as claimed in claim 3, wherein said telescopic knife further comprises: a control lever;
the joystick includes: the clamping block and the rotating ring;
the rotating ring is rotatably arranged on the tool main body, is positioned at the front end of the screw rod and is arranged in a sliding way along the axial direction of the screw rod;
the clamping block is fixedly connected with the rotating ring;
the front end of the screw is provided with a clamping groove which is in clamping fit with the clamping block;
the rotating ring is used for driving the clamping block to enter and exit the clamping groove, and an anti-slip ring is arranged on the periphery of the rotating ring.
5. The multifunctional telescopic insulating tool according to claim 4, wherein a guide hole is formed in the front end of the screw;
the clamping block is connected with a guide rod extending into the guide hole.
6. The multi-functional telescopic insulated blade of claim 4, further comprising a push handle;
the pushing handle is in a shape of a Chinese character 'zhong', the middle part of the pushing handle is sleeved on the rotating ring, and the two ends of the pushing handle extend outwards to form an extension part.
7. The multifunctional telescopic insulating tool according to claim 2, wherein the connecting block is provided with a perforation, a tool body locking block and a sliding rod;
the front end of the cutter body is provided with a cutter body locking groove matched with the cutter body locking piece;
the perforation is used for allowing the front end of the cutter body to extend in;
the blade locking piece is arranged along the sliding rod in a sliding way;
the slide bar intersects the perforated portion.
8. The multifunctional telescopic insulating tool according to claim 1, further comprising a screwdriver;
the screwdriver is rotatably connected with the tool main body;
the tool bit body is provided with a screw bit groove for placing the screw bit.
9. The multifunctional telescopic insulating tool according to claim 1, further comprising a test pencil;
the test pencil is rotatably arranged and connected with the tool main body;
and a test pencil groove for placing the test pencil is formed in the tool main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111371486.6A CN114083581B (en) | 2021-11-18 | 2021-11-18 | Multifunctional telescopic insulating tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111371486.6A CN114083581B (en) | 2021-11-18 | 2021-11-18 | Multifunctional telescopic insulating tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114083581A CN114083581A (en) | 2022-02-25 |
| CN114083581B true CN114083581B (en) | 2023-10-03 |
Family
ID=80301934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111371486.6A Active CN114083581B (en) | 2021-11-18 | 2021-11-18 | Multifunctional telescopic insulating tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114083581B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115738114B (en) * | 2022-10-20 | 2023-12-22 | 国网辽宁省电力有限公司本溪供电公司 | Locking type anti-falling device for power transmission line climbing tower |
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|---|---|---|---|---|
| CH284158A (en) * | 1950-08-08 | 1952-07-15 | Georges Ruedin S A | Pocket knife. |
| TWM275931U (en) * | 2005-03-18 | 2005-09-21 | Formosa Nien Chang Ind Co Ltd | Foldable multi-functional tool with flash drive |
| CN2905370Y (en) * | 2006-04-30 | 2007-05-30 | 蔡文 | Clamp possessed type multifunctional knife |
| CN202862160U (en) * | 2012-07-06 | 2013-04-10 | 朱德青 | Multifunctional cutter tong |
| CN207616516U (en) * | 2017-12-13 | 2018-07-17 | 华北电力大学（保定） | A kind of electric power overhaul multi-funciton hand-vice |
| CN109129582A (en) * | 2018-09-06 | 2019-01-04 | 宁波宏迪尺业有限公司 | A kind of art designing's utility knife of locking nut |
| US10569433B1 (en) * | 2018-09-03 | 2020-02-25 | Tsang Wing WONG | Safety cutter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070186351A1 (en) * | 2006-01-30 | 2007-08-16 | Buck Knives, Inc. | Multi function tool |
-
2021
- 2021-11-18 CN CN202111371486.6A patent/CN114083581B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH284158A (en) * | 1950-08-08 | 1952-07-15 | Georges Ruedin S A | Pocket knife. |
| TWM275931U (en) * | 2005-03-18 | 2005-09-21 | Formosa Nien Chang Ind Co Ltd | Foldable multi-functional tool with flash drive |
| CN2905370Y (en) * | 2006-04-30 | 2007-05-30 | 蔡文 | Clamp possessed type multifunctional knife |
| CN202862160U (en) * | 2012-07-06 | 2013-04-10 | 朱德青 | Multifunctional cutter tong |
| CN207616516U (en) * | 2017-12-13 | 2018-07-17 | 华北电力大学（保定） | A kind of electric power overhaul multi-funciton hand-vice |
| US10569433B1 (en) * | 2018-09-03 | 2020-02-25 | Tsang Wing WONG | Safety cutter |
| CN109129582A (en) * | 2018-09-06 | 2019-01-04 | 宁波宏迪尺业有限公司 | A kind of art designing's utility knife of locking nut |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114083581A (en) | 2022-02-25 |
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