CN108747935B - Safety protection device for installing outer hexagonal self-tapping screw with pad and drill tail - Google Patents
Safety protection device for installing outer hexagonal self-tapping screw with pad and drill tail Download PDFInfo
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- CN108747935B CN108747935B CN201810446495.9A CN201810446495A CN108747935B CN 108747935 B CN108747935 B CN 108747935B CN 201810446495 A CN201810446495 A CN 201810446495A CN 108747935 B CN108747935 B CN 108747935B
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- equal
- sleeve
- chuck
- tapping screw
- jaw
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- 238000010079 rubber tapping Methods 0.000 title claims abstract description 49
- 210000000078 claw Anatomy 0.000 claims description 9
- 238000009434 installation Methods 0.000 abstract description 4
- 241001074085 Scophthalmus aquosus Species 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a safety protection device for installing an outer hexagonal self-tapping screw with a pad and a drill tail, and relates to the field of tools for installing screws. The invention solves the problems of serious safety accidents and the like existing in the prior installation of self-tapping screws. This safety arrangement who installs outer hexagonal area pad brill tail tapping screw is provided with safety sleeve, activity jack catch, expanding spring, spring backing plate and lift post, and the peripheral equidistance of inner wall of protection pipe is provided with the jack catch groove, is provided with fixed pin inner male location pinhole on the lateral wall of dop, and expanding spring cup joints on the cover handle, be provided with the circular perforation that cover handle and interior hexagonal formula running-on passed in the middle of the spring backing plate. The invention has simple structure, convenient installation, easy operation, safety and reliability.
Description
Technical Field
The invention relates to the field of tools for installing screws, in particular to a safety protection device for installing an outer hexagonal self-tapping screw with a pad and a drill tail.
Background
At present, the installation of an external hexagonal self-tapping screw with a pad and a drilling tail, namely a self-tapping screw, usually completes a construction procedure on an electric hand drill provided with a hexagonal magnetic socket wrench, namely a sleeve head, however, although a magnet arranged in the inner hexagonal sleeve head has certain adsorption force on the external hexagonal end part of the self-tapping screw, the self-tapping screw driven by the sleeve head under the high-speed rotation of the electric hand drill also runs at a very high speed, and the sleeve head running at a high speed and the self-tapping screw running at a high speed can not be ensured not to be loosened and can be tightly bonded together due to the depth of the sleeve head, namely the inner hexagonal sleeve head and the external hexagonal end part of the self-tapping screw, so that the accident that the self-tapping screw flies out from the sleeve head end can often occur when an operator installs the self-tapping screw by using the electric hand drill or due to other reasons, even the self-tapping screw running at a high speed causes injury or death to the operators, surrounding people and other articles, therefore, the sleeve head on the existing electric hand drill is used for installing the self-tapping screw, so that the serious potential safety hazard exists.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a safety protection device for installing the external hexagonal self-tapping screw with the pad and the drill tail, which has the advantages of simple structure, convenience in installation, easiness in operation, safety and reliability.
In order to achieve the purpose, the invention provides a safety protection device for installing an outer hexagonal self-tapping screw with a pad and a drill tail, which comprises an electric hand drill and a sleeve head, wherein the sleeve head comprises a sleeve handle and an inner hexagonal sleeve opening, the sleeve handle is sleeved with a chuck of the electric hand drill, a magnet is arranged at the inner end of the inner hexagonal sleeve opening, the safety protection device for installing the outer hexagonal self-tapping screw with the pad and the drill tail is provided with a safety sleeve, a movable clamping jaw, a telescopic spring, a spring base plate and a lifting column, the outer end of the sleeve handle is vertically and fixedly provided with a cylindrical lifting column, the central part of the outer end of the lifting column is sleeved with the electric hand drill, the outer diameter of the lifting column is larger than that of the sleeve handle, the side wall of the lifting column is provided with a bolt hole;
the upper part and the lower part of the safety sleeve are respectively a control round pipe and a protection round pipe, the control round pipe is provided with a strip-shaped slideway through which a bolt passes, the strip-shaped slideway is parallel to the central shaft of the safety sleeve, the inner diameter of the control round pipe is equal to the outer diameter of the lifting column, and the inner diameter of the protection round pipe is equal to the outer diameter of the inner hexagonal sleeve opening; the circumference of the inner wall of the protection circular pipe is equidistantly provided with claw grooves, the claw grooves are parallel to the central shaft of the protection circular pipe, the protection circular pipe at the inner end of the claw grooves is provided with fixing pin holes, and fixing pins are arranged in the fixing pin holes;
the length of the movable clamping jaw is equal to that of the protection circular tube, the movable clamping jaw is provided with a clamping head and a clamping tail, a positioning pin hole into which the inner end of a fixing pin is inserted is formed in the outer side wall of the clamping head, the outer side edge and the inner side edge of the clamping head are linear and parallel, and the outer side edge and the inner side edge of the clamping tail are both bent inwards and have equal radians; the outer side of the sleeve handle is provided with chuck telescopic grooves at equal intervals, the chuck telescopic grooves are parallel to the central shaft of the sleeve handle, the length of the chuck telescopic grooves is equal to that of the sleeve handle, the inner hexagonal sleeve opening is smaller than that of the movable clamping jaw, and the length of the movable clamping jaw is smaller than or equal to that of the clamping jaw groove;
the telescopic spring is sleeved on the sleeve handle, and the outer diameter of the lifting column is larger than that of the telescopic spring; the middle of the spring base plate is provided with a sleeve handle and a circular through hole through which the inner hexagonal sleeve opening penetrates, the outer diameter of the spring base plate is equal to the outer diameter of the lifting column, namely, the outer diameter of the lifting column is equal to the inner diameter of the control circular tube, and the inner diameter of the protection circular tube is smaller than the inner diameter of the control circular tube.
Three jaw grooves are formed in the protection circular tube, and a movable jaw is arranged in each jaw groove corresponding to the protection circular tube; the number of the jaw grooves is equal to that of the chuck telescopic grooves, and the lengths of the jaw grooves, the chuck telescopic grooves and the long strip-shaped slide ways are equal.
The outer diameters of the sleeve handle and the inner hexagonal sleeve opening are equal, and the length of the inner hexagonal sleeve opening is less than one third of the length of the movable clamping jaw.
The widths of the chuck and the chuck tail of the movable clamping jaw are equal to or less than the depth of the chuck telescopic groove, and the vertical distance from the outer end part of the chuck tail of the movable clamping jaw to the inner side wall of the chuck is less than or equal to the radial distance from the outer wall of the nut on the outer hexagonal self-tapping screw with the pad drill tail to the outer wall of the screw rod.
The invention has the beneficial effects that: the safety protection device for installing the outer hexagonal self-tapping screw with the pad and the drill tail is simple in structure and convenient to install; the nut of the self-tapping screw is always held tightly by the movable clamping jaw in the chuck telescopic groove of the protective circular tube, and the movable clamping jaw only loosens the nut of the self-tapping screw after the self-tapping screw is drilled by the electric hand drill, so that the self-tapping screw is easy to operate, safe and reliable, the function that the movable clamping jaw is loosened after the self-tapping screw is held tightly by the movable clamping jaw during drilling and the self-tapping screw is drilled in place is realized, and the potential safety hazard caused by the fact that the drilling direction is not vertical or other reasons is met when the existing electric hand drill is used for installing the self-tapping screw is thoroughly eliminated.
The safety protection device for installing the external hexagonal self-tapping screw with the pad and the drill tail is further described with reference to the attached drawings.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the connection between the lifting column and the socket of the present invention;
FIG. 3 is an exploded view of the components of the present invention;
FIG. 4 is a perspective view of the safety sleeve of the present invention;
fig. 5 is a schematic perspective view of the movable jaw of the present invention.
FIG. 6 is a schematic view of a single movable jaw of the present invention initially protecting a self-tapping screw;
FIG. 7 is a schematic view of a single movable jaw partway protecting self-tapping screw of the present invention;
fig. 8 is a schematic view of a single movable jaw of the present invention completing the protection of the tapping screw.
In the figure: 1. the telescopic handle, 2, hexagonal socket head, 3, safety sleeve, 4, movable jaw, 5, expanding spring, 6, spring backing plate, 7, lifting column, 8, bolt hole, 9, bolt, 10, control pipe, 11, protection pipe, 12, long-strip-shaped slideway, 13, jaw groove, 14, fixing pin hole, 15, fixing pin, 16, dop, 17, card tail, 18, positioning pin hole, 19, dop telescopic groove, 20, circular perforation, 21, nut, 22, screw rod.
Detailed Description
As shown in fig. 1, 2 and 3, the safety protection device for installing the outer hexagonal self-tapping screw with the pad and the drill tail comprises an electric hand drill and a sleeve head, wherein the sleeve head comprises a sleeve handle 1 and an inner hexagonal sleeve opening 2, the sleeve handle 1 is sleeved with a chuck of the electric hand drill, and a magnet is arranged at the inner end of the inner hexagonal sleeve opening 2. The safety protection device for installing the outer hexagonal self-tapping screw with the pad and the drill tail is provided with a safety sleeve 3, a movable clamping jaw 4, a telescopic spring 5, a spring base plate 6 and a lifting column 7. The outer end vertical fixation of cover handle 1 is provided with the lift post 7 of cylinder type, and the outer end central point of lift post 7 cup joints with the electric hand drill, and the external diameter of lift post 7 is greater than the external diameter of cover handle 1, is provided with a bolt hole 8 on the lateral wall of lift post 7, is provided with threaded connection's bolt 9 through bolt hole 8. The outer side of the sleeve handle 1 is provided with chuck telescopic grooves 19 at equal intervals, the chuck telescopic grooves 19 are parallel to the central shaft of the sleeve handle 1, the length of the chuck telescopic grooves 19 is equal to that of the sleeve handle 1, the inner hexagonal type sleeve opening 2 is smaller than one third of the length of the movable clamping jaw 4, and the length of the movable clamping jaw 4 is smaller than or equal to that of the clamping jaw groove 13. The telescopic spring 5 is sleeved on the sleeve handle 1, and the outer diameter of the lifting column 7 is larger than that of the telescopic spring 5; the middle of the spring cushion plate 6 is provided with a circular through hole 20 through which the sleeve handle 1 and the inner hexagonal sleeve opening 2 penetrate, the outer diameter of the spring cushion plate 6 is equal to the outer diameter of the lifting column 7, namely, the inner diameter of the control circular tube 10, and the inner diameter of the protection circular tube 11 is smaller than the inner diameter of the control circular tube 10.
As shown in fig. 1, 2 and 4, the upper part and the lower part of the safety sleeve 3 are respectively a control round tube 10 and a protection round tube 11, the control round tube 10 is provided with a strip-shaped slide way 12 through which the bolt 9 passes, the strip-shaped slide way 12 is parallel to the central axis of the safety sleeve 3, the inner diameter of the control round tube 10 is equal to the outer diameter of the lifting column 7, and the inner diameter of the protection round tube 11 is equal to the outer diameter of the inner hexagonal socket 2; the inner wall periphery of the protection circular tube 11 is equidistantly provided with claw grooves 13, the claw grooves 13 are parallel to the central shaft of the protection circular tube 11, the protection circular tube 11 at the inner end of the claw grooves 13 is provided with fixing pin holes 14, and fixing pins 15 are installed in the fixing pin holes 14.
As shown in fig. 5, the length of the movable jaw 4 is equal to the length of the protection circular tube 11, the movable jaw 4 is provided with a chuck 16 and a tail 17, the outer side wall of the chuck 16 is provided with a positioning pin hole 18 into which the inner end of the fixing pin 15 is inserted, the outer side edge and the inner side edge of the chuck 16 are linear and parallel, and the outer side edge and the inner side edge of the tail 17 are both inwardly bent and have equal radians.
Three jaw grooves 13 are arranged in the protection circular tube 11, and the jaw grooves 13 corresponding to the protection circular tube 11 are respectively provided with a movable jaw 4; the number of the jaw grooves 13 is equal to that of the chuck telescopic grooves 19, and the lengths of the jaw grooves 13, the chuck telescopic grooves 19 and the long strip-shaped slide ways 12 are equal. The outer diameters of the handle 1 and the inner hexagonal socket 2 are equal. The widths of the chuck 16 and the chuck tails 17 of the movable clamping jaws 4 are equal to or less than the depth of the chuck telescopic groove 49, and the vertical distance from the outer end parts of the chuck tails 17 of the movable clamping jaws 4 to the inner side wall of the chuck 16 is less than or equal to the radial distance from the outer wall of the nut 21 on the outer hexagonal self-tapping screw with the pad drill tail to the outer wall of the screw 22.
Firstly, fixedly connecting a lifting column 7 on a sleeve head with an electric hand drill, and sequentially sleeving a telescopic spring 5 and a spring base plate 6 on a sleeve handle 1; then, sequentially inserting the three fixing pins 15 into the three fixing pin holes 14 on the protection circular tube 11 of the safety sleeve 3, and simultaneously inserting the fixing pins 15 into the positioning pin holes 18 on the clamping heads 16 of the movable clamping jaws 4 in the clamping head telescopic grooves 19; and then the control cylinder 10 on the safety sleeve 3 is sleeved on the sleeve handle 1 along the inner hexagonal sleeve opening 2, the bolt 9 penetrates through the elongated slide rail 12 on the control circular tube 10 and is fixed on the bolt hole 8 of the lifting column 7, and at the moment, the self-tapping screw safety protection device on the electric hand drill is completely installed.
As shown in fig. 6, after the safety sleeve 3 is pressed towards the electric hand drill, the end of the socket 2 on the socket head moves to the end of the protection circular tube 11 of the safety sleeve 3, at this time, the nut 21 of the self-tapping screw can be inserted into the socket 2, after the safety sleeve 3 is loosened, due to the elastic force of the expansion spring 5, i.e. the control circular tube 10 on the safety sleeve 3 moves towards the socket 2 end along the handle 1, on one hand, the self-tapping screw enters the protection circular tube 11 of the safety sleeve 3, on the other hand, the outer wall of the socket 2 on the socket head presses the end of the locking tail 17 of the movable jaw 4 to be changed into pressing the end of the locking head 16 of the movable jaw 4, that is, the original locking head 16 extends out of the locking head expansion groove 19 and the locking tail 17 is pressed in the locking head expansion groove 19 to be changed into pressing the locking head 16 in the locking head expansion groove 19 and pressing the locking tail 17 out of the locking head expansion groove 19, so that the end of the locking tail 17 of, therefore, the movable clamping jaw 4 can tightly hold the screw cap 21 on the self-tapping screw when the electric hand drill starts to work, and the accident that the self-tapping screw flies out from the sleeve head end due to the fact that the drilling direction of the self-tapping screw is not vertical or other reasons is avoided; as shown in fig. 7 and 8, when the electric hand drill drills the self-tapping screw gradually, the chuck 16 on the movable jaw 4 gradually extends out of the chuck telescopic groove 19 and enters the elongated slide way 12 on the sleeve handle 1, and the tail 17 is gradually pressed in the chuck telescopic groove 19, that is, when the electric hand drill finishes the self-tapping screw drilling work, the holding measure of the movable jaw 4 on the self-tapping screw nut 21 is automatically released.
Claims (4)
1. The safety protection device for installing the outer hexagonal self-tapping screw with the pad and the drill tail comprises an electric hand drill and a sleeve head, wherein the sleeve head comprises a sleeve handle and an inner hexagonal sleeve opening, the sleeve handle is sleeved with a chuck of the electric hand drill, and a magnet is arranged at the inner end of the inner hexagonal sleeve opening;
the upper part and the lower part of the safety sleeve are respectively a control round pipe and a protection round pipe, the control round pipe is provided with a strip-shaped slideway through which a bolt passes, the strip-shaped slideway is parallel to the central shaft of the safety sleeve, the inner diameter of the control round pipe is equal to the outer diameter of the lifting column, and the inner diameter of the protection round pipe is equal to the outer diameter of the inner hexagonal sleeve opening; the circumference of the inner wall of the protection circular pipe is equidistantly provided with claw grooves, the claw grooves are parallel to the central shaft of the protection circular pipe, the protection circular pipe at the inner end of the claw grooves is provided with fixing pin holes, and fixing pins are arranged in the fixing pin holes;
the length of the movable clamping jaw is equal to that of the protection circular tube, the movable clamping jaw is provided with a clamping head and a clamping tail, a positioning pin hole into which the inner end of a fixing pin is inserted is formed in the outer side wall of the clamping head, the outer side edge and the inner side edge of the clamping head are linear and parallel, and the outer side edge and the inner side edge of the clamping tail are both bent inwards and have equal radians; the outer side of the sleeve handle is provided with chuck telescopic grooves at equal intervals, the chuck telescopic grooves are parallel to the central shaft of the sleeve handle, the length of the chuck telescopic grooves is equal to that of the sleeve handle, the inner hexagonal sleeve opening is smaller than that of the movable clamping jaw, and the length of the movable clamping jaw is smaller than or equal to that of the clamping jaw groove;
the telescopic spring is sleeved on the sleeve handle, and the outer diameter of the lifting column is larger than that of the telescopic spring; the middle of the spring base plate is provided with a sleeve handle and a circular through hole through which the inner hexagonal sleeve opening penetrates, the outer diameter of the spring base plate is equal to the outer diameter of the lifting column, namely, the outer diameter of the lifting column is equal to the inner diameter of the control circular tube, and the inner diameter of the protection circular tube is smaller than the inner diameter of the control circular tube.
2. The safety protection device for installing the hexagon socket head cap self-tapping screw with the pad and the drill tail as claimed in claim 1, wherein the number of the jaw grooves in the protection circular tube is three, and the jaw grooves corresponding to the protection circular tube are respectively provided with a movable jaw; the number of the jaw grooves is equal to that of the chuck telescopic grooves, and the lengths of the jaw grooves, the chuck telescopic grooves and the long strip-shaped slide ways are equal.
3. The safety shield for installing an allen self-tapping screw having a cushioned outer socket as defined in claim 1 wherein the outer diameters of the shank and the socket are equal and the length of the socket is less than one third of the length of the movable jaw.
4. The safety protection device for installing an external hexagonal self-tapping screw with a cushion and a drill tail as claimed in claim 1, wherein the width of the chuck and the width of the chuck tail of the movable jaw are equal to or less than the depth of the chuck telescopic slot, and the vertical distance from the outer end part of the chuck tail of the movable jaw to the inner side wall of the chuck is less than or equal to the radial distance from the outer wall of the nut on the external hexagonal self-tapping screw with a cushion and a drill tail to the outer wall of the screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810446495.9A CN108747935B (en) | 2018-05-06 | 2018-05-06 | Safety protection device for installing outer hexagonal self-tapping screw with pad and drill tail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810446495.9A CN108747935B (en) | 2018-05-06 | 2018-05-06 | Safety protection device for installing outer hexagonal self-tapping screw with pad and drill tail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108747935A CN108747935A (en) | 2018-11-06 |
| CN108747935B true CN108747935B (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810446495.9A Active CN108747935B (en) | 2018-05-06 | 2018-05-06 | Safety protection device for installing outer hexagonal self-tapping screw with pad and drill tail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108747935B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999044791A1 (en) * | 1998-03-05 | 1999-09-10 | Tozo Yamamoto | Screwdriver for self-drilling screw |
| CN200970741Y (en) * | 2006-10-27 | 2007-11-07 | 汪荣昌 | Screw quick mounting positioning device |
| CN203109866U (en) * | 2012-08-22 | 2013-08-07 | 天津鹏翎胶管股份有限公司 | Safety protection device used for long-handle pneumatic screw driver |
| CN105459001A (en) * | 2015-12-17 | 2016-04-06 | 东莞市精心自动化设备科技有限公司 | Automatic screw locking device |
| CN206185816U (en) * | 2016-11-21 | 2017-05-24 | 张超 | Can right reentrant corner ailing ware of nail |
| CN107553385A (en) * | 2017-10-18 | 2018-01-09 | 贵州佛施特电力配套有限公司 | screw holder |
-
2018
- 2018-05-06 CN CN201810446495.9A patent/CN108747935B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999044791A1 (en) * | 1998-03-05 | 1999-09-10 | Tozo Yamamoto | Screwdriver for self-drilling screw |
| CN200970741Y (en) * | 2006-10-27 | 2007-11-07 | 汪荣昌 | Screw quick mounting positioning device |
| CN203109866U (en) * | 2012-08-22 | 2013-08-07 | 天津鹏翎胶管股份有限公司 | Safety protection device used for long-handle pneumatic screw driver |
| CN105459001A (en) * | 2015-12-17 | 2016-04-06 | 东莞市精心自动化设备科技有限公司 | Automatic screw locking device |
| CN206185816U (en) * | 2016-11-21 | 2017-05-24 | 张超 | Can right reentrant corner ailing ware of nail |
| CN107553385A (en) * | 2017-10-18 | 2018-01-09 | 贵州佛施特电力配套有限公司 | screw holder |
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| Publication number | Publication date |
|---|---|
| CN108747935A (en) | 2018-11-06 |
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Effective date of registration: 20231027 Address after: No. 1, 1st Floor, Building A, Weiteli Factory Area, No. 6 Xingli South Road, Licun Industrial Avenue, Lunjiao Street, Shunde District, Foshan City, Guangdong Province, 528000 (Residence Declaration) Patentee after: Foshan Xugang Precision Technology Co.,Ltd. Address before: 235037 Shengzhuang Village, Gaoyue Town, Duji District, Huaibei City, Anhui Province Patentee before: Huang Sizhong |
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