CN112355979A - Multipurpose flat shovel type punching head - Google Patents
Multipurpose flat shovel type punching head Download PDFInfo
- Publication number
- CN112355979A CN112355979A CN202011036981.7A CN202011036981A CN112355979A CN 112355979 A CN112355979 A CN 112355979A CN 202011036981 A CN202011036981 A CN 202011036981A CN 112355979 A CN112355979 A CN 112355979A
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- Prior art keywords
- punching
- butt joint
- hole
- flat shovel
- chiseling
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- 238000004080 punching Methods 0.000 title claims abstract description 111
- 210000001503 joint Anatomy 0.000 claims abstract description 68
- 241000251133 Sphyrna tiburo Species 0.000 claims description 9
- 239000007779 soft material Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F1/00—Combination or multi-purpose hand tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D3/00—Hand chisels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The invention discloses a multipurpose flat shovel type punching head which comprises a punching body, a flat shovel body and a butt joint body, wherein the flat shovel body is fixed at the bottom of the punching body in a matched mode, and the butt joint body is fixed at the top of the punching body in a matched mode. The punching and chiseling device is characterized in that limiting ribs are respectively arranged on the left side and the right side of the punching and chiseling body, a bottom first through hole and a bottom second through hole are formed in the bottom of the punching and chiseling body, a bottom top first through hole and a top second through hole are formed in the top of the punching and chiseling body, an anti-skidding handle is fixed in the middle of the punching and chiseling body, a butterfly head screw rod is meshed with the outer side of the flat shovel body, a butterfly head screw rod is meshed with the outer side of the butt jointing body, a butt joint cavity is formed in the top of the butt joint body, and butterfly head jackscrews are meshed. The invention relates to a multipurpose flat shovel type punching chisel head, which combines a flat shovel and a chisel, has the functions of both the flat shovel and the chisel, does not need to be installed or disassembled for replacement when in use, and has simple operation and good use flexibility.
Description
Technical Field
The invention relates to the field of hardware, in particular to a multipurpose flat shovel type punching head.
Background
A chisel is a steel tool with a cutting edge at the end of the shank or handle. The chisel is usually held in one hand at right angles to the surface of the object to be engraved and is struck with a mallet held in the other hand. The flat shovel is a chisel with wide and thin edge and is used as a tool for cutting flat articles or taking things up from east and west. Because flat shovel and chisel are as the instrument commonly used in the five metals, and flat shovel and chisel often are regarded as the partner again, and current flat shovel and chisel are most for looks mutual separation, not only carry and accomodate inconveniently, frequently change inconvenient when using. In order to solve the existing problems, the invention designs a multipurpose flat shovel type punching head.
Disclosure of Invention
The invention aims to solve the problems that the conventional flat shovel and chisel are mostly separated from each other, are inconvenient to carry and store, are inconvenient to frequently replace when in use and the like because the flat shovel and chisel are used as common tools in hardware and are often used as a partner, and the multipurpose flat shovel type chisel head is provided.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a multipurpose flat shovel formula towards chisel head, includes towards chisel body, flat shovel body and butt joint body, and wherein, the cooperation of flat shovel body is fixed in towards the bottom of chisel body, and the butt joint body cooperation is fixed in towards the top of chisel body. The punching and chiseling device is characterized in that limiting ribs are respectively arranged on the left side and the right side of the punching and chiseling body, a bottom first through hole and a bottom second through hole are formed in the bottom of the punching and chiseling body, a bottom top first through hole and a top second through hole are formed in the top of the punching and chiseling body, an anti-skidding handle is fixed in the middle of the punching and chiseling body, a butterfly head screw rod is meshed with the outer side of the flat shovel body, a butterfly head screw rod is meshed with the outer side of the butt jointing body, a butt joint cavity is formed in the top of the butt joint body, and butterfly head jackscrews are meshed.
Preferably, the bottom of the punching and chiseling body is in limit fit with the flat shovel body through limit ribs on the left side and the right side of the punching and chiseling body, the top of the punching and chiseling body is in limit fit with the butt joint body through limit ribs on the left side and the right side of the punching and chiseling body, and the limit ribs and the punching and chiseling body are of an integrally formed structure. The limiting ribs are used for limiting the flat shovel body and the butt joint body, and the overall stability and reliability of the punching and chiseling body can be improved.
Preferably, after the limiting ribs on the left side and the right side of the bottom of the punching body are in limiting fit with the flat shovel body, the butterfly head screw on the outer side of the flat shovel body can be matched and fixed with the first through hole in the bottom or the second through hole in the bottom of the punching body, and the butterfly head screw is in clearance fit with the first through hole in the bottom or the second through hole in the bottom. The fixation of the flat shovel body and the punching body can be realized quickly by the aid of the cooperation of the rotary butterfly head screw rod and the bottom first through hole or the bottom second through hole, and the rotary butterfly head screw rod is simple in operation and convenient to use.
Preferably, when the butterfly head screw rod outside the flat shovel body is matched and fixed with the first through hole at the bottom of the punching and chiseling body, the chisel head at the bottom of the punching and chiseling body is parallel and level to the shovel head at the bottom of the flat shovel body, and the flat shovel can be used; when the butterfly head screw rod outside the flat shovel body is matched and fixed with the second through hole at the bottom of the punching chisel body, the shovel head at the bottom of the flat shovel body is positioned above the chisel head at the bottom of the punching chisel body, and the flat shovel body can be used as a chisel. The flat shovel body and the punching and chiseling body can be switched to be used at any time, the functions of the flat shovel and the chiseling are achieved, the flat shovel and the chiseling body do not need to be installed or detached to be replaced when the flat shovel and the chiseling body are used, operation is simple, and using flexibility is good.
Preferably, after the top of the punching body is in limit fit with the butt joint body through the limit ribs on the left side and the right side of the punching body, the butterfly head screw rod on the outer side of the butt joint body is matched and fixed with the first through hole in the top or the second through hole in the top of the punching body, and the butterfly head screw rod is in clearance fit with the first through hole in the top or the second through hole in the top. The fixation of the connector and the punching body can be realized fast by the aid of the cooperation of the rotary butterfly head screw rod and the first top through hole or the second top through hole, and the butterfly head screw rod is simple in operation and convenient to use.
Preferably, when the butterfly head screw rod outside the butt joint body is matched and fixed with the first through hole at the top of the punching body, the hammering position at the top of the punching body is hidden by the butt joint body and can be used as a flat shovel; when the butterfly head screw rod outside the butt joint body is matched and fixed with the second through hole at the top of the punching body, the hammering position at the top of the punching body is exposed outside the butt joint body, and the butterfly head screw rod can be used as a chisel. The flat shovel body and the punching and chiseling body can be switched to be used at any time, the functions of the flat shovel and the chiseling are achieved, the flat shovel and the chiseling body do not need to be installed or detached to be replaced when the flat shovel and the chiseling body are used, operation is simple, and using flexibility is good.
Preferably, the butt joint cavity at the top of the butt joint body can be in clearance fit with the handle, and after the butt joint cavity at the top of the butt joint body is in clearance fit with the handle, the butt joint body is clamped and fixed with the handle through four butterfly head jackscrews. When the flat shovel is used, the connecting body can be butted with the handle so as to facilitate the use of the flat shovel body, wherein the butterfly head jackscrew can be rapidly clamped and fixed with the handle through four places, thereby facilitating the installation or the disassembly of the handle.
Preferably, the whole anti-slip grip is made of soft materials such as rubber, and the anti-slip grip is fixedly bonded with the punching body through the rubber. When the anti-skidding hand grip is used as a chisel, the friction force contacted with the palm can be effectively increased through the anti-skidding hand grip, and the comfort of holding the chisel body by hand can be improved.
Compared with the prior art, the invention has the beneficial effects that: the invention relates to a multipurpose flat shovel type punching chisel head, which combines a flat shovel and a chisel, has the functions of both the flat shovel and the chisel, does not need to be installed or disassembled for replacement when in use, and has simple operation and good use flexibility.
Drawings
Fig. 1 is a front view schematically showing the structure of the present invention when used as a spade.
Fig. 2 is a cross-sectional view taken at a-a in fig. 1.
Fig. 3 is a cross-sectional view taken at B-B in fig. 1.
Fig. 4 is a left side view of the present invention when used as a spade.
Fig. 5 is a cross-sectional view at C-C in fig. 1.
Fig. 6 is a partial enlarged view of fig. 5 at D.
Fig. 7 is a partial enlarged view at E in fig. 5.
Fig. 8 is a front view schematically showing the construction of the present invention when used as a chisel.
Fig. 9 is a cross-sectional view at F-F in fig. 8.
Fig. 10 is a left side view of the present invention as a chisel.
Fig. 11 is a cross-sectional view at G-G in fig. 8.
Fig. 12 is a partial enlarged view of fig. 11 at H.
Fig. 13 is a partial enlarged view at I in fig. 11.
In the figure: 1-punching body, 2-flat shovel body, 3-butt joint body, 4-limiting rib, 5-bottom first through hole, 6-bottom second through hole, 7-top first through hole, 8-top second through hole, 9-anti-slip grip, 10-butterfly head screw, 11-butt joint cavity and 12-butterfly head top thread.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-13, the present invention provides a technical solution:
the utility model provides a multipurpose flat shovel formula towards chisel head, includes towards chisel body 1, flat shovel body 2 and butt joint body 3, wherein, flat shovel body 2 cooperation is fixed in towards the bottom of chisel body 1, and butt joint body 3 cooperation is fixed in towards the top of chisel body 1. The punching and chiseling device is characterized in that limiting ribs 4 are respectively arranged on the left side and the right side of the punching and chiseling body 1, a first bottom through hole 5 and a second bottom through hole 6 are formed in the bottom of the punching and chiseling body 1, a first bottom top through hole 7 and a second bottom top through hole 8 are formed in the top of the punching and chiseling body 1, an anti-skidding handle 9 is fixed in the middle of the punching and chiseling body 1, a butterfly head screw 10 is meshed with the outer side of the flat shovel body 2, a butterfly head screw 10 is meshed with the outer side of the butt joint body 3, a butt joint cavity 11 is formed in the top of the butt joint body 3, and butterfly head top screws 12 are meshed.
The bottom of the punching and chiseling body 1 is in limit fit with the flat shovel body 2 through the limit ribs 4 on the left side and the right side of the punching and chiseling body, the top of the punching and chiseling body 1 is in limit fit with the butt joint body 3 through the limit ribs 4 on the left side and the right side of the punching and chiseling body, and the limit ribs 4 and the punching and chiseling body 1 are of an integrally formed structure. The limiting ribs 4 are used for limiting the flat shovel body 2 and the connecting body 3, and the overall stability and reliability of the punching and chiseling body 2 can be improved.
After the limiting ribs 4 on the left side and the right side of the bottom of the punching and chiseling body 1 are in limiting fit with the flat shovel body 2, the butterfly head screw 10 on the outer side of the flat shovel body 2 can be matched and fixed with the first bottom through hole 5 or the second bottom through hole 6 at the bottom of the punching and chiseling body 1, and the butterfly head screw 10 is in clearance fit with the first bottom through hole 5 or the second bottom through hole 6. The fixation of the flat shovel body 2 and the punching body 1 can be realized quickly by the cooperation of the rotary butterfly head screw rod 10, the butterfly head screw rod 10 and the first through hole 5 at the bottom or the second through hole 6 at the bottom, and the operation is simple and the use is convenient.
When the butterfly head screw 10 at the outer side of the flat shovel body 2 is matched and fixed with the first through hole 5 at the bottom of the punching and chiseling body 1, the chisel head at the bottom of the punching and chiseling body 1 is parallel and level to the shovel head at the bottom of the flat shovel body 2, and the butterfly head screw can be used as a flat shovel; when the butterfly head screw 10 at the outer side of the flat shovel body 2 is matched and fixed with the second through hole 6 at the bottom of the punching and chiseling body 1, the shovel head at the bottom of the flat shovel body 2 is positioned above the chisel head at the bottom of the punching and chiseling body 1, and the butterfly head screw can be used as a chisel. The flat shovel body 2 and the punching and chiseling body 1 can be switched to be used at any time, the functions of both the flat shovel and the chiseling are achieved, the flat shovel and the chiseling do not need to be installed or detached to be replaced when the flat shovel and the chiseling are used, operation is simple, and using flexibility is good.
After the top of the punching body 1 is in limited fit with the butt joint body 3 through the limiting ribs 4 on the left side and the right side of the punching body, the butterfly head screw 10 on the outer side of the butt joint body 3 can be matched and fixed with the first top through hole 7 or the second top through hole 8 on the top of the punching body 1, and the butterfly head screw 10 is in clearance fit with the first top through hole 7 or the second top through hole 8. The butterfly head screw rod 10 is rotated, the butterfly head screw rod 10 is matched with the first through hole 7 in the top or the second through hole 8 in the top, the fixing of the connector 3 and the punching body 1 can be rapidly realized, and the butterfly head screw rod is simple to operate and convenient to use.
When the butterfly head screw 10 outside the butt joint body 3 is matched and fixed with the first through hole 7 at the top of the punching body 1, the hammering position at the top of the punching body 1 is hidden by the butt joint body 3 and can be used as a flat shovel; when the butterfly head screw rod 10 outside the butt joint body 3 is matched and fixed with the second through hole 8 at the top of the punching chisel body 1, the hammering part at the top of the punching chisel body 1 is exposed outside the butt joint body 3 and can be used as a chisel. The flat shovel body 2 and the punching and chiseling body 1 can be switched to be used at any time, the functions of both the flat shovel and the chiseling are achieved, the flat shovel and the chiseling do not need to be installed or detached to be replaced when the flat shovel and the chiseling are used, operation is simple, and using flexibility is good.
The butt joint cavity 11 at the top of the butt joint body 3 can be in clearance fit with the handle, and after the butt joint cavity 11 at the top of the butt joint body 3 is in clearance fit with the handle, the butt joint body 3 is clamped and fixed with the handle through four butterfly head jackscrews 12. When the flat shovel is used as a flat shovel, the flat shovel can be butted with a handle through the connecting body 3 so as to facilitate the use of the flat shovel body 2, wherein the flat shovel can be quickly clamped and fixed with the handle through the four butterfly head jackscrews 12 so as to facilitate the installation or the disassembly of the handle.
The antiskid grip 9 is made of soft material such as rubber, and the antiskid grip 9 is fixed to the punching body 1 by adhesive. When the anti-skid handle 9 is used as a chisel, the friction force contacted with the palm can be effectively increased through the anti-skid handle 9, and the comfort of holding the chisel body 1 by hand can be improved.
The working principle of the invention is as follows:
when being used as the spade, with the butterfly head screw 10 in the flat shovel body 2 outside fixed with the cooperation of the first through-hole 5 in bottom of the 1 bottom of the body of punching and chiseling, 1 bottom chisel head of the body of punching and chiseling is at this moment parallel and level mutually with the 2 bottom shovel heads of the flat shovel body, again with the butterfly head screw 10 in the butt joint body 3 outside fixed with the cooperation of the first through-hole 7 in top at the 1 top of punching and chiseling, 1 top hammering department of punching and chiseling is hidden by butt joint body 3 this moment, and butt joint chamber 11 at butt joint body 3 top can use with handle clearance fit, after butt joint chamber 11 at butt joint body 3 top and handle clearance fit, butt joint body 3 presss from both sides tightly fixedly through butterfly head jackscrew 12 in four places and handle. At the moment, the area of the shovel head at the bottom of the flat shovel body 2 is the largest, the shovel head has the function of a flat shovel, and a user can hold the handle by hand to use the shovel as the flat shovel.
When the special chisel is used as a chisel, the butterfly head screw 10 on the outer side of the flat shovel body 2 is matched and fixed with the bottom second through hole 6 at the bottom of the punching body 1, the shovel head at the bottom of the flat shovel body 2 is positioned above the chisel head at the bottom of the punching body 1, the butterfly head screw 10 on the outer side of the butt joint body 3 is matched and fixed with the top second through hole 8 at the top of the punching body 1, and the hammering position at the top of the punching body 1 is exposed on the outer side of the butt joint body 3. At this time, the flat shovel body 2 and the butt joint body 3 do not obstruct the use of the impact chisel body 1, and a user can hold the anti-slip grip with hands to use the anti-slip grip as a chisel.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a flat shovel formula punching chisel head which characterized in that: the punching and chiseling device comprises a punching and chiseling body (1), a flat shovel body (2) and a butt joint body (3), wherein the flat shovel body (2) is fixed at the bottom of the punching and chiseling body (1) in a matched mode, and the butt joint body (3) is fixed at the top of the punching and chiseling body (1) in a matched mode;
the left and right sides of the punching body (1) are provided with limiting ribs (4) respectively, the bottom of the punching body (1) is provided with a first bottom through hole (5) and a second bottom through hole (6), the top of the punching body (1) is provided with a first bottom top through hole (7) and a second top through hole (8), an anti-slip handle (9) is fixed in the middle of the punching body (1), the outer side of the flat shovel body (2) is meshed with a butterfly head screw rod (10), the outer side of the butt joint body (3) is also meshed with a butterfly head screw rod (10), the top of the butt joint body (3) is provided with a butt joint cavity (11), and butterfly head top wires (12) are meshed around the butt joint cavity (11).
2. A multi-purpose spade-type chisel head according to claim 1 wherein: the bottom of the punching and chiseling body (1) is in limit fit with the flat shovel body (2) through the limit ribs (4) on the left side and the right side of the punching and chiseling body, the top of the punching and chiseling body (1) is in limit fit with the butt joint body (3) through the limit ribs (4) on the left side and the right side of the punching and chiseling body, and the limit ribs (4) and the punching and chiseling body (1) are of an integrally formed structure.
3. A multi-purpose spade-type chisel head according to claim 2 wherein: after the bottom of the punching body (1) is in limit fit with the flat shovel body (2) through the limit ribs (4) on the left side and the right side of the bottom of the punching body (1), the butterfly head screw (10) on the outer side of the flat shovel body (2) can be matched and fixed with the first bottom through hole (5) or the second bottom through hole (6) at the bottom of the punching body (1), and the butterfly head screw (10) is in clearance fit with the first bottom through hole (5) or the second bottom through hole (6).
4. A multi-purpose spade-type chisel head according to claim 3 wherein: when the butterfly head screw rod (10) at the outer side of the flat shovel body (2) is matched and fixed with the first through hole (5) at the bottom of the punching and chiseling body (1), the chisel head at the bottom of the punching and chiseling body (1) is parallel and level to the chisel head at the bottom of the flat shovel body (2) at the moment, and the flat shovel can be used as a flat shovel; when the butterfly head screw rod (10) at the outer side of the flat shovel body (2) is matched and fixed with the second through hole (6) at the bottom of the punching body (1), the shovel head at the bottom of the flat shovel body (2) is positioned above the chisel head at the bottom of the punching body (1), and the flat shovel can be used as a chisel.
5. A multi-purpose spade-type chisel head according to claim 2 wherein: the top of the punching body (1) is in limited fit with the butt joint body (3) through the limiting ribs (4) on the left side and the right side of the punching body, a butterfly head screw rod (10) on the outer side of the butt joint body (3) is matched and fixed with a first top through hole (7) or a second top through hole (8) of the punching body (1), and the butterfly head screw rod (10) is in clearance fit with the first top through hole (7) or the second top through hole (8).
6. A multi-purpose spade-type chisel head according to claim 5 wherein: when the butterfly head screw rod (10) at the outer side of the butt joint body (3) is matched and fixed with the first through hole (7) at the top of the punching body (1), the hammering position at the top of the punching body (1) is hidden by the butt joint body (3) and can be used as a flat shovel; when the butterfly head screw rod (10) on the outer side of the butt joint body (3) is matched and fixed with the second through hole (8) in the top of the punching body (1), the hammering position on the top of the punching body (1) is exposed on the outer side of the butt joint body (3) and can be used as a chisel.
7. A multi-purpose spade-type chisel head according to claim 1 wherein: the butt joint cavity (11) at the top of the butt joint body (3) can be in clearance fit with the handle, and after the butt joint cavity (11) at the top of the butt joint body (3) is in clearance fit with the handle, the butt joint body (3) is clamped and fixed with the handle through four butterfly head jackscrews (12).
8. A multi-purpose spade-type chisel head according to claim 1 wherein: the antiskid grip (9) is integrally made of soft materials such as rubber, and the antiskid grip (9) is fixedly bonded with the punching body (1) through glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011036981.7A CN112355979A (en) | 2020-09-28 | 2020-09-28 | Multipurpose flat shovel type punching head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011036981.7A CN112355979A (en) | 2020-09-28 | 2020-09-28 | Multipurpose flat shovel type punching head |
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| Publication Number | Publication Date |
|---|---|
| CN112355979A true CN112355979A (en) | 2021-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011036981.7A Pending CN112355979A (en) | 2020-09-28 | 2020-09-28 | Multipurpose flat shovel type punching head |
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| Country | Link |
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| CN (1) | CN112355979A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2340148Y (en) * | 1998-07-24 | 1999-09-29 | 王中瑞 | Multifunctional spade |
| GB0505976D0 (en) * | 2005-03-23 | 2005-04-27 | Lin Ming Shuan | Connecting device for connecting a main tool and an auxillary tool of a combination tool |
| CN101626871A (en) * | 2007-01-30 | 2010-01-13 | 联合里奇美国 | Multi-function tool apparatus and system |
| CN103770089A (en) * | 2014-01-21 | 2014-05-07 | 南通市红星空压机配件制造有限公司 | Multifunctional wrench |
| US20180117753A1 (en) * | 2015-06-15 | 2018-05-03 | C. B. Innovation Ltd. | Multi-purpose tool |
| CN210810836U (en) * | 2017-08-10 | 2020-06-23 | 韩启会 | Broom shovel |
| CN111482931A (en) * | 2020-06-04 | 2020-08-04 | 华北科技学院 | Mine underground emergency rescue device |
-
2020
- 2020-09-28 CN CN202011036981.7A patent/CN112355979A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2340148Y (en) * | 1998-07-24 | 1999-09-29 | 王中瑞 | Multifunctional spade |
| GB0505976D0 (en) * | 2005-03-23 | 2005-04-27 | Lin Ming Shuan | Connecting device for connecting a main tool and an auxillary tool of a combination tool |
| CN101626871A (en) * | 2007-01-30 | 2010-01-13 | 联合里奇美国 | Multi-function tool apparatus and system |
| CN103770089A (en) * | 2014-01-21 | 2014-05-07 | 南通市红星空压机配件制造有限公司 | Multifunctional wrench |
| US20180117753A1 (en) * | 2015-06-15 | 2018-05-03 | C. B. Innovation Ltd. | Multi-purpose tool |
| CN210810836U (en) * | 2017-08-10 | 2020-06-23 | 韩启会 | Broom shovel |
| CN111482931A (en) * | 2020-06-04 | 2020-08-04 | 华北科技学院 | Mine underground emergency rescue device |
Non-Patent Citations (2)
| Title |
|---|
| 上海市电子电器技术协会: "《常用电工材料手册》", 31 October 1988 * |
| 天津大学精仪系精密机械教研室: "《精密机械零件》", 31 December 1979 * |
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Application publication date: 20210212 |
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| RJ01 | Rejection of invention patent application after publication |