CN110578740A - Prevent wood screw of plate fracture - Google Patents
Prevent wood screw of plate fracture Download PDFInfo
- Publication number
- CN110578740A CN110578740A CN201910897388.2A CN201910897388A CN110578740A CN 110578740 A CN110578740 A CN 110578740A CN 201910897388 A CN201910897388 A CN 201910897388A CN 110578740 A CN110578740 A CN 110578740A
- Authority
- CN
- China
- Prior art keywords
- hole
- screw
- bolt
- barb
- middle hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002023 wood Substances 0.000 title claims abstract description 45
- 238000005336 cracking Methods 0.000 claims abstract description 12
- 239000003292 glue Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 abstract description 13
- 230000002265 prevention Effects 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
- F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/32—Locking by means of a pawl or pawl-like tongue
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
the invention discloses a plate cracking prevention wood screw which comprises a first screw head and a first screw rod, wherein the top of the first screw head is provided with an inner hexagonal, the bottom of the inner hexagonal is provided with a first middle hole, a bolt is fixed in the first middle hole through threads, a plurality of grooves are arranged around the first middle hole, an anti-falling hook with a barb is rotationally arranged in each groove, a first transverse hole communicated with the first middle hole is arranged on each groove, a metal wire penetrates through each first transverse hole, two ends of each metal wire are respectively connected with the anti-falling hook and the bolt, the barb is used for preventing the barb from falling off, force is applied to a wood structure from multiple directions to approach the center of a through hole, and cracking or crack increase of the wood structure after the wood structure is used for a period of time is avoided; glue solution is used for permeating between the through hole of the wood structure and the screw, and tiny cracks are filled while the screw is fastened, so that gradual increase in the later period is avoided.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of screws, in particular to the technical field of a wood screw for preventing a plate from cracking.
[ background of the invention ]
the wood screw is a screw specially used for wood, and the structure of the screw is similar to that of a machine screw in the field of machinery, but the thread on the screw rod is a thread for the special wood screw, and an internal thread can be self-drilled in a wood component for tightly connecting a metal part with a through hole and the wood component. The existing wood screw is usually used before pre-drilling on a wood base, otherwise, the wood screw is directly used for self-drilling, and the wood is easy to crack. However, even if the pre-drilling is performed, after the wood base is driven into the wood screw for a long time, the wood base is still easy to crack at the position of the wood screw, so that the problem of poor fastening is solved.
[ summary of the invention ]
The invention aims to solve the problems in the prior art and provides a wood screw for preventing a plate from cracking, which can prevent the cracking of a wood structure plate.
In order to achieve the purpose, the invention provides a wood screw for preventing a plate from cracking, which comprises a first screw head and a first screw rod, wherein the top of the first screw head is provided with an inner hexagonal, the bottom of the inner hexagonal is provided with a first middle hole, a bolt is fixed in the first middle hole through internal threads, a plurality of grooves are formed in the circumference of the first middle hole, an anti-falling hook with a barb is rotationally arranged in each groove, a first transverse hole communicated with the first middle hole is formed in each groove, a metal wire penetrates through each first transverse hole, two ends of each metal wire are respectively connected with the anti-falling hook and the bolt, a first external thread is arranged on the lower section of the first screw rod, and a pointed head is arranged at the bottom end of the first screw rod.
Preferably, first mesopore includes that the internal diameter reduces in proper order first perpendicular hole, second erect the hole and the third erects the hole, first perpendicular hole is located hexagonal bottom central authorities, the second erects the bottom central authorities that the hole is located first perpendicular hole and extends to first screw rod in, the third erects the bottom central authorities that the hole is located the second and erects the hole and be equipped with the internal thread, the bolt includes second spiral shell head and second screw rod, the top of second spiral shell head is equipped with the spiral groove, the bottom of second screw rod is equipped with the second external screw thread.
Preferably, the inner diameter of the first vertical hole is adapted to the outer diameter of the second screw head, the inner diameter of the second vertical hole is slightly larger than the outer diameter of the second screw rod, and the inner thread of the third vertical hole is adapted to the second outer thread.
Preferably, the mousing-hook includes the stock and is located the barb of stock one end, the barb is located one side that the barb is close to the stock, the other end of stock is connected with the pivot, the pivot is rotated and is fixed in the recess, the junction at stock and barb is fixed to the one end of wire and the other end stretches into first centre bore and is connected with the bolt along first cross bore.
Preferably, the bottom of the first middle hole is further provided with a second middle hole, the centers of the first middle hole and the second middle hole are communicated and provided with a channel, glue is filled in the second middle hole, the top of the glue is provided with a piston, the piston penetrates through the channel and is connected with the bottom of the bolt, a plurality of second transverse holes communicated with the second middle hole are arranged on the periphery of the second middle hole, and an outlet of the second transverse holes communicated with the outside is provided with a plastic sealing film.
Preferably, the piston comprises a plug rod and a plug body, the plug body is located in the second middle hole, the plug rod extends into the channel, and two ends of the plug rod are respectively connected with the bolt and the plug body.
The invention has the beneficial effects that: according to the invention, the bolt moves downwards, so that the metal wire drives the barb to extend out of the groove and prick into the inner wall of the through hole of the wood structure, the barb is used for preventing the barb from coming off and providing force for the wood structure to approach to the center of the through hole from multiple directions, and the cracking or crack increase of the wood structure after the wood structure is used for a period of time is avoided; the bolt descends to drive the piston to descend, so that the glue solution is pressed to burst the plastic sealing film and penetrate into the through hole of the wood structure and the space between the screws, and fine cracks are filled while the screws are fastened to avoid gradual increase in the later period.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a front view of a wood screw for preventing cracking of a plate member according to the present invention;
FIG. 2 is a front cross-sectional view of a wood screw for preventing cracking of a plate member according to the present invention;
FIG. 3 is a schematic view of the structure of FIG. 2 with the bolts removed;
FIG. 4 is an enlarged partial schematic view at A of FIG. 2;
in the figure: 1-first screw head, 11-inner hexagonal, 12-first vertical hole, 2-first screw rod, 21-second vertical hole, 22-third vertical hole, 23-first transverse hole, 24-groove, 25-channel, 26-second middle hole, 27-second transverse hole, 28-first external thread, 29-sharp head, 3-bolt, 31-second screw head, 311-rotary groove, 32-second screw rod, 321-second external thread, 4-rotary shaft, 5-metal wire, 6-mousing hook, 61-long rod, 62-barb, 621-barb, 7-piston, 71-plug rod, 72-plug body, 8-glue solution and 9-plastic sealing film.
[ detailed description ] embodiments
Referring to fig. 1 to 4, the wood screw for preventing the plate from cracking comprises a first screw head 1 and a first screw rod 2, wherein a hexagon socket 11 is arranged at the top of the first screw head 1, a first middle hole is arranged at the bottom of the hexagon socket 11, a bolt 3 is fixed in the first middle hole through internal threads, a plurality of grooves 24 are arranged on the circumference of the first middle hole, an anti-drop hook 6 with barbs 621 is rotatably arranged in the grooves 24, a first transverse hole 23 communicated with the first middle hole is arranged on the grooves 24, a metal wire 5 is penetrated in the first transverse hole 23, two ends of the metal wire 5 are respectively connected with the anti-drop hook 6 and the bolt 3, a first external thread 28 is arranged on the lower section of the first screw rod 2, a pointed head 29 is arranged at the bottom end of the first screw rod 2, the first middle hole comprises a first vertical hole 12, a second vertical hole 21 and a third vertical hole 22, the inner diameter of which are sequentially reduced, the first vertical hole 12 is positioned in the center of the bottom of the hexagon socket 11, the second vertical hole 21 is located at the bottom center of the first vertical hole 12 and extends to the first screw rod 2, the third vertical hole 22 is located at the bottom center of the second vertical hole 21 and is provided with an internal thread, the bolt 3 comprises a second screw head 31 and a second screw rod 32, the top of the second screw head 31 is provided with a spiral groove 311, the bottom of the second screw rod 32 is provided with a second external thread 321, the inner diameter of the first vertical hole 12 is adapted to the outer diameter of the second screw head 31, the inner diameter of the second vertical hole 21 is slightly larger than the outer diameter of the second screw rod 32, the internal thread of the third vertical hole 22 is adapted to the second external thread 321, the anti-drop hook 6 comprises a long rod 61 and a barb 62 located at one end of the long rod 61, the barb 621 is located at one side of the barb 62 close to the long rod 61, the other end of the long rod 61 is connected with a rotating shaft 4, the rotating shaft 4 is rotatably fixed in the groove 24, one end of the metal wire 5 is fixed at the joint of the long rod 61 and the barb 62, and the other The first middle hole is internally provided with a bolt 3, the bottom of the first middle hole is also provided with a second middle hole 26, the centers of the first middle hole and the second middle hole 26 are communicated with each other to form a channel 25, the second middle hole 26 is filled with glue solution 8, the top of the glue solution 8 is provided with a piston 7, the piston 7 penetrates through the channel 25 to be connected with the bottom of the bolt 3, the periphery of the second middle hole 26 is provided with a plurality of second transverse holes 27 communicated with the second middle hole 26, the outlet of the second transverse holes 27 communicated with the outside is provided with a plastic sealing film 9, the piston 7 comprises a plug rod 71 and a plug body 72, the plug body 72 is positioned in the second middle hole 26, the plug rod 71 extends into the channel 25, and two ends of the plug rod are respectively connected with the bolt 3 and the plug body 72.
The working process of the invention is as follows:
Firstly, a drill is used for drilling a through hole on a wood structure, then an inner hexagonal wrench is used for inserting into the inner hexagonal 11, and a screw is driven into the through hole of the wood structure. Next, a screwdriver is inserted into the screw slot 311, so that the bolt 3 is gradually screwed downward in the first central hole. In the process of downward movement of the bolt 3, one end of the metal wire 5 close to the bolt 3 gradually moves downward, so that the other end of the metal wire 5 drives the anti-disengaging hook 6 to rotate along the rotating shaft 4 and gradually moves upward until the barb 62 is tightly pricked into the inner wall of the through hole. Meanwhile, the bottom of the bolt 3 props against the piston 7, so that the piston 7 gradually moves downwards to extrude the glue solution 8 in the second middle hole 26 until the glue solution 8 breaks the plastic sealing film 9 arranged in the second transverse hole 27, and flows out and is filled between the through hole of the wood structure and the gap of the screw.
According to the invention, the bolt moves downwards, so that the metal wire drives the barb to extend out of the groove and prick into the inner wall of the through hole of the wood structure, the barb is used for preventing the barb from coming off and providing force for the wood structure to approach to the center of the through hole from multiple directions, and the cracking or crack increase of the wood structure after the wood structure is used for a period of time is avoided; the bolt descends to drive the piston to descend, so that the glue solution is pressed to burst the plastic sealing film and penetrate into the through hole of the wood structure and the space between the screws, and fine cracks are filled while the screws are fastened to avoid gradual increase in the later period.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (6)
1. The utility model provides a prevent wooden screw of plate fracture which characterized in that: including first spiral shell head (1) and first screw rod (2), the top of first spiral shell head (1) is equipped with allen key (11), the bottom of allen key (11) is equipped with first mesopore, first mesopore internal thread is fixed with bolt (3), first mesopore week is surveyed and is equipped with a plurality of recess (24), recess (24) internal rotation is equipped with mousing-hook (6) that have barb (621), be equipped with first cross bore (23) that are linked together with first mesopore on recess (24), the both ends of wearing wire (5) and wire (5) in first cross bore (23) are connected with mousing-hook (6) and bolt (3) respectively, the hypomere of first screw rod (2) is equipped with first external screw thread (28), the bottom of first screw rod (2) is equipped with sharp head portion (29).
2. A wood screw for preventing a panel from being cracked, according to claim 1, wherein: first mesopore includes that the internal diameter reduces in proper order first perpendicular hole (12), second erect hole (21) and third erect hole (22), first perpendicular hole (12) are located the bottom central authorities of allen key (11), second erect hole (21) and are located the bottom central authorities of first perpendicular hole (12) and extend to in first screw rod (2), third erect hole (22) and are located the bottom central authorities of second perpendicular hole (21) and are equipped with the internal thread, bolt (3) include second spiral shell head (31) and second screw rod (32), the top of second spiral shell head (31) is equipped with spiral groove (311), the bottom of second screw rod (32) is equipped with second external screw thread (321).
3. A wood screw for preventing a panel from being cracked, according to claim 2, wherein: the inner diameter of the first vertical hole (12) is adapted to the outer diameter of the second screw head (31), the inner diameter of the second vertical hole (21) is slightly larger than the outer diameter of the second screw rod (32), and the inner thread of the third vertical hole (22) is adapted to the second outer thread (321).
4. a wood screw for preventing a panel from being cracked, according to claim 1, wherein: mousing-hook (6) are including stock (61) and lie in barb (62) of stock (61) one end, barb (621) lie in barb (62) and are close to one side of stock (61), the other end of stock (61) is connected with pivot (4), pivot (4) are rotated and are fixed in recess (24), the junction of stock (61) and barb (62) is fixed to the one end of wire (5) and the other end stretches into first well downthehole and is connected with bolt (3) along first cross bore (23).
5. A wood screw for preventing a panel from being cracked, according to claim 1, wherein: the bottom of the first middle hole is also provided with a second middle hole (26), the center of the first middle hole is communicated with the center of the second middle hole (26) to form a channel (25), the second middle hole (26) is filled with glue solution (8), the top of the glue solution (8) is provided with a piston (7), the piston (7) penetrates through the channel (25) to be connected with the bottom of the bolt (3), a plurality of second transverse holes (27) communicated with the second middle hole (26) are arranged on the periphery of the second middle hole (26), and an outlet communicated with the outside of the second transverse holes (27) is provided with a plastic sealing film (9).
6. A wood screw for preventing panel cracking according to claim 5, wherein: the piston (7) comprises a plug rod (71) and a plug body (72), the plug body (72) is located in the second middle hole (26), the plug rod (71) extends into the channel (25), and two ends of the plug rod are respectively connected with the bolt (3) and the plug body (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910897388.2A CN110578740B (en) | 2019-09-23 | 2019-09-23 | Prevent wood screw of plate fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910897388.2A CN110578740B (en) | 2019-09-23 | 2019-09-23 | Prevent wood screw of plate fracture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110578740A true CN110578740A (en) | 2019-12-17 |
| CN110578740B CN110578740B (en) | 2021-06-11 |
Family
ID=68813286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910897388.2A Active CN110578740B (en) | 2019-09-23 | 2019-09-23 | Prevent wood screw of plate fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110578740B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360865A (en) * | 2020-11-25 | 2021-02-12 | 浙江科佳机械有限公司 | Anti-drop fastener |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6896462B2 (en) * | 2003-09-17 | 2005-05-24 | General Motors Corporation | Mechanical and adhesive fastener unit |
| CN206468653U (en) * | 2016-12-22 | 2017-09-05 | 吉林中凯标识工程有限公司 | The fixing device installed for plastic sucking character |
| CN206636903U (en) * | 2017-03-20 | 2017-11-14 | 黄平县富源生态科技开发有限责任公司 | A kind of mountain forest poultry prevents from boring net fixing glue |
| CN207073507U (en) * | 2017-07-14 | 2018-03-06 | 天津市浩越全五金制品股份有限公司 | A kind of high-performance fiber nail |
| CN207470570U (en) * | 2017-11-27 | 2018-06-08 | 江苏政春标准件有限公司 | A kind of check bolt of manual uniform gluing |
| CN207989483U (en) * | 2018-03-02 | 2018-10-19 | 惠州市元嘉精密机械有限公司 | A kind of non-dismountable screw |
-
2019
- 2019-09-23 CN CN201910897388.2A patent/CN110578740B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6896462B2 (en) * | 2003-09-17 | 2005-05-24 | General Motors Corporation | Mechanical and adhesive fastener unit |
| CN206468653U (en) * | 2016-12-22 | 2017-09-05 | 吉林中凯标识工程有限公司 | The fixing device installed for plastic sucking character |
| CN206636903U (en) * | 2017-03-20 | 2017-11-14 | 黄平县富源生态科技开发有限责任公司 | A kind of mountain forest poultry prevents from boring net fixing glue |
| CN207073507U (en) * | 2017-07-14 | 2018-03-06 | 天津市浩越全五金制品股份有限公司 | A kind of high-performance fiber nail |
| CN207470570U (en) * | 2017-11-27 | 2018-06-08 | 江苏政春标准件有限公司 | A kind of check bolt of manual uniform gluing |
| CN207989483U (en) * | 2018-03-02 | 2018-10-19 | 惠州市元嘉精密机械有限公司 | A kind of non-dismountable screw |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360865A (en) * | 2020-11-25 | 2021-02-12 | 浙江科佳机械有限公司 | Anti-drop fastener |
| CN112360865B (en) * | 2020-11-25 | 2023-08-22 | 浙江科佳机械有限公司 | Anti-drop fastener |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110578740B (en) | 2021-06-11 |
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