CN103422743B - A kind of Portable auxiliary bolt - Google Patents
A kind of Portable auxiliary bolt Download PDFInfo
- Publication number
- CN103422743B CN103422743B CN201310392904.9A CN201310392904A CN103422743B CN 103422743 B CN103422743 B CN 103422743B CN 201310392904 A CN201310392904 A CN 201310392904A CN 103422743 B CN103422743 B CN 103422743B
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- CN
- China
- Prior art keywords
- support arm
- riser
- top board
- base
- transverse slat
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Abstract
The invention discloses a kind of Portable auxiliary bolt, be made up of L shape top board, support arm and base, described L shape top board is divided into the transverse slat in the gap can inserting door-plate and ground and can withstands on the riser of internal hilar plate lower end, room, the length of described transverse slat is no more than the thickness of door-plate, described support arm one end and described riser hinged away from one end of transverse slat, the other end and the base of support arm are hinged, and described base end face is fixed with friction plate; Chassis ground point to the length on riser top is greater than the length of riser.Structure of the present invention is simple, and cost of manufacture is low, solves existing keeper and holds the little problem of thrust.
Description
Technical field
The present invention relates to a kind of auxiliary instrument of locking a door easy to carry, particularly relate to a kind of volume weight little, hold the strong portable auxiliary instrument of locking a door of thrust.
Background technology
When travel outdoors into stay at hotels or short-term rents others' house time, sometimes there is the situation that the forefathers do not installed an iron door to guard further against burglars or once lived not necessarily give back key, even the security door from house ornamentation, sometimes also may there is situation about being opened by master key, even door lock can be broken thus enter in room.So feel safer during in order to live, especially short-term moves in other people house, need a kind of except door lock, enter the instrument can strengthening door degree of safety after in room from inside.Because the people moved in unlikely adds and installs an iron door to guard further against burglars, changes lock temporarily, so unlikely change firmness and the unlocking difficulty of door, so, for short-term live crowd, need a kind of volume little, lightweight, easily carry and easy to use, hold the strong auxiliary instrument of locking a door of thrust.The keeper of people's use usually now, because be by fixing between door and doorframe, reach the object of locking a door, so just still needs to be arranged on door or doorframe, be not easy to carry and install at any time, there is following problem simultaneously:
1, the thrust of holding of keeper depends on fixing to keeper of several bolts, if opposite house to push away the power of hitting slightly large, keeper then can be inoperative because of bolt falling.
2, the power pushed is parallel with the bed knife direction of keeper, causes keeper to hold thrust not strong.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of Portable door bolt, by the frictional force produced between keeper and ground, door is fixed on the ground of a lower end, just in case there is the situation that door lock is malfunctioning, door closes and after locking, keeper is stuck in behind the door with the gap on ground, for reinforced door lock function.
The technical scheme that the present invention takes is: a kind of keeper of assistant reinforcement door lock function, be made up of L shape top board, support arm and base, described L shape top board is divided into the transverse slat in the gap can inserting door-plate and ground and can withstands on the riser of internal hilar plate lower end, room, the length of described transverse slat is no more than the thickness of door-plate, keeper can not expose outdoors, described support arm one end and described riser hinged away from one end of transverse slat, the other end and the base of support arm are hinged, described base end face is fixed with friction plate, strengthens frictional force between base and ground; Chassis ground point to the length on riser top is greater than the length of riser.
When there being people to push, riser can transmit a thrust.This thrust can resolve into a power obliquely and a downward power.Downward power passes to base by support arm, and the frictional force between base and ground is increased, and hinders the movement of keeper, thus prevents door to be open.Power obliquely makes support arm produce the trend of rotating around base pin joint, because the length from base to riser top is greater than the length of riser, so, by riser, in the triangle that support arm and both distances between ground are formed, the trend of this rotation diminishes making the angle between support arm and riser, support arm will upwards mention L-type top board by pin joint, at this moment, the transverse slat of L shape top board is stuck in door-plate lower end, stop the continuation of this trend, make support arm cannot continue to rotate, like this, the thrust of opposite house is just all transformed to the thrust to base, and thrust is larger, the downward component that support arm produces base is also larger, frictional force is also larger, still the thrust of increase can be offset, so, the keeper of this structure can avoid the impulse force by clashing into suddenly that door is rushed open equally.
As preferably, the line of support arm two ends pin joint and the angle of L shape top board riser are less than 45 °, and be less than 45 ° of downward component that the external force pushed can be made to produce larger, it is exactly frictional force that downward component is multiplied by friction factor, so frictional force is larger.The angular range of described L shape top board riser and transverse slat is between 80 ° ~ 90 °.When external force push support arm upwards mention riser time, transverse slat is because blocked can not move up by door-plate lower end, then can form the trend of deviating from outside door-plate, if the angle of riser and transverse slat is greater than 90 °, transverse slat is deviate from a bit, and the length between transverse slat outer end and riser is larger, and support arm just more easily continues to mention L shape top board, cause transverse slat to continue to deviate from, to the last all deviate from thus keeper inefficacy.And this angle is set to is less than 90 °, deviating from some Rear Door lower ends at transverse slat still can form enough frictional force to transverse slat, thus prevents transverse slat from continuing to deviate from.
As preferably, described L shape top board riser upper end is extruded with cantilever arm, and the combination of described L shape top board, cantilever arm and support arm is in " several " shape, and the pin joint of L shape top board and support arm is positioned at the external part of cantilever arm.The length of cantilever arm makes to have certain distance between base and door, immediate roof is on base to avoid transverse slat to deviate from a bit, and the consequence of transverse slat immediate roof base is the horizontal thrust that thrust directly forms to base, can not form the component to base, cannot increase frictional force, door is just easily open.
As preferably, described support arm is provided with the adjusting rod that can regulate support arm length in one end hinged with base, described adjusting rod is provided with manual adjustments bolt, first can shorten adjusting rod, thus reduce the length of whole support arm, so snapped in behind the door by keeper easily and make to form suitable angle between support arm and riser, and then lengthen adjusting rod, just support arm produces precompression to base, thus produces the frictional force that enough prevention doors push open.
As preferably, the articulated manner of described support arm and base is universal hinging, and the connected mode of support arm and base is more flexible, when door rotates the lateral force a bit formed keeper, support arm directly can not pass to this side force on base, avoids the side force of support arm directly to promote base.
As preferably, the external part of described L-type top board transverse slat is provided with convex thorn or barb, and transverse slat can be allowed more firmly to be stuck in door-plate lower end, be not easy, because door-plate is often deviate from a bit, all can cause the revolution space that support arm is larger, also greatly can reduce the frictional force of base, easily make keeper lose efficacy.
As preferably, described support arm wall is provided with screw with it, be provided with rotatable to regulate the fastening screw of support arm and riser spacing and angle in screw, stop support arm to turn to and angle between riser too small, because when turning to both angles and being too small, the trend that is rotated further of support arm will no longer produce the trend mentioning L shape top board, transverse slat just can not continue to produce its resistance rotated of larger prevention, the rotation trend of support arm just can proceed, especially when support arm turns to perpendicular to ground, the thrust of pin joint will no longer produce downward component, base just can not form the frictional force stoping door to promote, so, angle between support arm and riser is necessary can not be too small, otherwise the usefulness of keeper will decline until lost efficacy.
As preferably, the riser of described L shape top board is provided with the spacing zone of indent, and described fastening screw points to spacing zone, holds out against position to limit fastening screw on riser.
As preferably, the pin joint place of described L shape top board and support arm is provided with limit rotation structure, makes the angle of support arm and ground perpendicular be not less than 15 °, and restriction support arm is around the degree of rotation of base pin joint.Limit rotation structure is ensure that the angle between support arm and riser can not be too small equally.
As preferably, after installation, the difference that chassis ground point to the length on riser top exceedes riser length is greater than 2 centimetres and is less than 5 centimetres, according to the distance that door-plate can upwards rock, and the distance that this difference can upwards will be rocked significantly more than door-plate.If this difference is less than the value that door-plate upwards rocks, support arm is when upwards rotating, and door-plate is and then upwards mentioned until the angle of support arm and riser is too small, base can not along with the increase of thrust increasing friction force, keeper lost efficacy.
In sum, the present invention has the following advantages:
(1) structure of the present invention is simple, and cost of manufacture is low, and volume is little, lightweight, carry with easy for installation, only need close at door and after locking, be stuck in by keeper behind the door with the gap on ground, just can reach the function of good reinforcement door lock;
(2) the present invention is rational in infrastructure, and the thrust of opposite house is converted into frictional force, and the power pushed is larger, and the frictional force between base and ground is larger, enables door stop very large extrapolability, good anti-theft effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the preferred embodiment of the present invention;
Fig. 2 is lateral view of the present invention;
Fig. 3 is top view of the present invention;
Fig. 4 is elevation of the present invention.
Label in accompanying drawing is respectively:
1.L type top board; 2. riser;
3. transverse slat; 4. cantilever arm;
5. spacing zone; 6. base;
7. support arm; 8. adjusting rod;
9. manual adjustments bolt; 10. fastening screw;
11. screws.
Detailed description of the invention
Below in conjunction with accompanying drawing, with embodiment, the utility model is described in further detail.
As Figure 1-4, Portable door bolt of the present invention, the L shape top board 1, support arm 7 and the base 6 that are made up of riser 2 and transverse slat 3 form, wherein, the length of transverse slat 3 is generally 3 centimetres to 5 centimetres, is no more than the thickness of common door-plate, and the external part of transverse slat 3 is provided with convex thorn, also barb can be arranged to, slippage in the gap making transverse slat be not easy from door-plate.Riser 2 upper end is extruded with cantilever arm 4, and the external part of support arm 7 one end and cantilever arm 4 is hinged, and the combination of L shape top board 1, cantilever arm 4 and support arm 7 is in " several " shape.The other end of support arm 7 and base 6 universal hinging, base 6 bottom surface is fixed with friction plate.Base 6 earth point to the length on riser 2 top is greater than the length of riser 2.The present embodiment support arm 7 is provided with certain radian, also support arm 7 can be set to linear pattern.
The line of support arm 7 two ends pin joint and the angle of riser 2 are less than 45 °, and the present embodiment is set to 40 °, and the angular range of L shape top board 1 riser 2 and transverse slat 3 is generally between 80 ° ~ 90 °, and the present embodiment is set to 90 °.
Support arm 7 is provided with the adjusting rod 8 that can regulate support arm 7 length in one end hinged with base 6, adjusting rod 8 is provided with manual adjustments bolt 9.After installation, base 6 earth point exceedes the difference of riser 2 length generally between 2 centimetres to 5 centimetres to the length on riser 2 top, and the present embodiment is 3 centimetres.
For ensureing that the angle between support arm and riser can not be too small, what the present embodiment adopted is be provided with screw 11 with it at support arm 7 wall, is provided with rotatable with the fastening screw 10 regulated with riser 2 spacing and angle in screw 11.Fastening screw 10 points to the spacing zone 5 of the indent that riser 2 is established.
Except a use tight screw rod, also can adopt and limit rotation structure is set at L shape top board 1 and the pin joint place of support arm 7, make support arm 7 be not less than 15 ° with the angle of ground perpendicular.
More than illustrate it is only explanation of the invention; those of ordinary skill in the art are made to implement this programme; but be not limitation of the present invention; those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this manual, all belong to claims of the present invention.
Claims (1)
1. a Portable auxiliary bolt, be made up of L shape top board, support arm and base, it is characterized in that: described L shape top board is divided into the transverse slat in the gap can inserting door-plate and ground and can withstands on the riser of internal hilar plate lower end, room, the length of described transverse slat is no more than the thickness of door-plate, described support arm one end and described riser hinged away from one end of transverse slat, the other end and the base of support arm are hinged, and described base end face is fixed with friction plate; Chassis ground point to the length on riser top is greater than the length of riser; The line of described support arm two ends pin joint and the angle of L shape top board riser are 40 °, and the angle of described L shape top board riser and transverse slat is 90 °; Described L shape top board riser upper end is extruded with cantilever arm, and the combination of described L shape top board, cantilever arm and support arm is in " several " shape, and the pin joint of L shape top board and support arm is positioned at the external part of cantilever arm; Described support arm is provided with the adjusting rod that can regulate support arm length in one end hinged with base, and described adjusting rod is provided with manual adjustments bolt; Described support arm wall is provided with screw with it, is provided with rotatable with the fastening screw regulated with riser spacing and angle in screw; The articulated manner of described support arm and base is universal hinging; The external part of described L-type top board transverse slat is provided with convex thorn or barb; The riser of described L shape top board is provided with the spacing zone of indent, and described fastening screw points to spacing zone; The pin joint place of described L shape top board and support arm is provided with limit rotation structure, makes the angle of support arm and ground perpendicular be not less than 15 °; After installation, the difference that chassis ground point to the length on riser top exceedes riser length is greater than 2 centimetres and is less than 5 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310392904.9A CN103422743B (en) | 2013-09-03 | 2013-09-03 | A kind of Portable auxiliary bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310392904.9A CN103422743B (en) | 2013-09-03 | 2013-09-03 | A kind of Portable auxiliary bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103422743A CN103422743A (en) | 2013-12-04 |
| CN103422743B true CN103422743B (en) | 2015-12-09 |
Family
ID=49648081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310392904.9A Expired - Fee Related CN103422743B (en) | 2013-09-03 | 2013-09-03 | A kind of Portable auxiliary bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103422743B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368539A (en) * | 2016-10-21 | 2017-02-01 | 广西大学 | Arc type nail-free anti-theft door back locking device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594744B (en) * | 2015-01-22 | 2016-01-20 | 王宇航 | A kind of Portable door safety device and using method thereof |
| CN106401336B (en) * | 2016-10-21 | 2018-08-24 | 广西大学 | Inclined push type exempts to follow closely antitheft door closer |
| CN106285262A (en) * | 2016-10-21 | 2017-01-04 | 广西大学 | Two-part exempts to follow closely antitheft door closer |
| CN113846918A (en) * | 2021-09-09 | 2021-12-28 | 陈安 | Portable door stopper for external-open door |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5503443A (en) * | 1995-06-16 | 1996-04-02 | Tautfest; Michael | Compactable door blocking device |
| US20040070217A1 (en) * | 2002-10-11 | 2004-04-15 | Demlow Durand K. | Door securing device |
| GB0302229D0 (en) * | 2003-01-30 | 2003-03-05 | Bass Dennis A | Security devices |
| CN201246046Y (en) * | 2008-08-21 | 2009-05-27 | 卢伟 | Angle-adjustable type manual window opening fixer |
| HK1146614A2 (en) * | 2010-05-11 | 2011-06-24 | Deborah Anne Hong Lan Lee | A portable device for preventing movement of a door |
| WO2013093390A1 (en) * | 2011-12-20 | 2013-06-27 | Penn Global Assets Limited | Door brace |
| CN203515075U (en) * | 2013-09-03 | 2014-04-02 | 尹璐 | Portable assistant bolt |
-
2013
- 2013-09-03 CN CN201310392904.9A patent/CN103422743B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368539A (en) * | 2016-10-21 | 2017-02-01 | 广西大学 | Arc type nail-free anti-theft door back locking device |
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| Publication number | Publication date |
|---|---|
| CN103422743A (en) | 2013-12-04 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20190903 |