CN103422743A - Portable auxiliary bolt - Google Patents
Portable auxiliary bolt Download PDFInfo
- Publication number
- CN103422743A CN103422743A CN2013103929049A CN201310392904A CN103422743A CN 103422743 A CN103422743 A CN 103422743A CN 2013103929049 A CN2013103929049 A CN 2013103929049A CN 201310392904 A CN201310392904 A CN 201310392904A CN 103422743 A CN103422743 A CN 103422743A
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- support arm
- riser
- base
- top board
- shaped top
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Abstract
The invention discloses a portable auxiliary bolt which is composed of an L-shaped top plate, a supporting arm and a base. The L-shaped top plate comprises a transverse plate and a vertical plate, the transverse plate can be inserted into a clearance between a door plate and the ground, the vertical plate can abut against the lower end of the indoor door plate, and the length of the transverse plate is not larger than the thickness of the door plate. One end of the supporting arm is hinged to one end, far from the transverse plate, of the vertical plate, the other end of the supporting arm is hinged to the base, a friction piece is fixed on the bottom face of the base, and the length between the grounding point of the base and the top end of the vertical plate is larger than the length of the vertical plate. The portable auxiliary bolt is simple in structure and low in manufacturing cost, and the problem that an existing bolt is small in pushing bearing force is solved.
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 portable auxiliary instrument of locking a door that thrust is strong.
Background technology
When travelling outdoors into staying at hotels or short-term while renting others' house, sometimes the situation that the forefathers that existence does not install an iron door to guard further against burglars or once lived not necessarily give back key, even from house ornamentation security door, sometimes situation about being opened by master key also may occur, thereby even can break door lock to enter in room.So, feel safer in order to live, especially short-term is moved in other people house, needs a kind of instrument that can strengthen internally the door degree of safety except door lock, after entering in room.Because unlikely adding temporarily, the people who moves in installs an iron door to guard further against burglars, changes lock, so unlikely change firmness and the unlocking difficulty of door, so, the crowd who lives for short-term, need a kind of volume little, lightweight, easily carry and easy to use, hold the auxiliary instrument of locking a door that thrust is strong.Usually the keeper that people use now, because be by fixing between door and doorframe, reach the purpose of locking a door, and so just still needs to be arranged on door or doorframe, is not easy to carry and installs at any time, has 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 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 the situation that door lock is malfunctioning occurs, door closed and lock after, keeper is stuck in behind the door in the gap with ground, for the reinforced door lock function.
The technical scheme that the present invention takes is: a kind of keeper of assistant reinforcement door lock function, by L shaped top board, support arm and base, formed, described L shaped top board is divided into the transverse slat in the gap that can insert 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 are hinged away from an 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; The base earth point is greater than the length of riser to the length on riser top.
When having the people to push, riser can transmit a thrust.This thrust can resolve into power and a downward power obliquely.Downward power passes to base by support arm, makes the frictional force between base and ground increase, and hinders the movement of keeper, thereby prevents that door is open.Power obliquely makes support arm produce the trend of rotating around the base pin joint, because the length from base to the riser top is greater than the length of riser, so, by riser, in support arm and both distance triangles formed between ground, the trend of this rotation will make the angle between support arm and riser diminish, support arm will upwards be mentioned the L-type top board by pin joint, at this moment, the transverse slat of L shaped top board is stuck in the door-plate lower end, stop the continuation of this trend, make support arm can't continue rotation, like this, the thrust of opposite house just all has been transformed into the thrust to base, and thrust is larger, the downward component that support arm produces base is also larger, frictional force is also just larger, still can offset the thrust of increase, so, the keeper of this structure can be avoided by the impulse force of unexpected shock, door being rushed open equally.
As preferably, the line of support arm two ends pin joint and the angle of L shaped top board riser are less than 45 °, are less than the downward component that 45 ° of external force that can make to push produce larger, and it is exactly frictional force that downward component is multiplied by friction factor, so frictional force is larger.The angular range of described L shaped top board riser and transverse slat is between 80 °～90 °.When external force pushes support arm while upwards mentioning riser, transverse slat is because blocked and can not move up by the door-plate lower end, can form the trend of deviating from outside door-plate, if the angle of riser and transverse slat is greater than 90 °, after transverse slat is deviate from a bit, the length between transverse slat outer end and riser is larger, and support arm just more easily continues to mention L shaped top board, cause transverse slat to continue to deviate from, lost efficacy thereby to the last all deviate from keeper.Be less than 90 ° and this angle is made as, deviate from some Rear Doors lower end at transverse slat and still can form enough frictional force to transverse slat, thereby prevent that transverse slat from continuing to deviate from.
As preferably, described L shaped top board riser upper end is extruded with cantilever arm, and the combination of described L shaped top board, cantilever arm and support arm is " several " shape, and the pin joint of L shaped top board and support arm is positioned at the external part of cantilever arm.The length of cantilever arm makes between base and door has certain distance, after avoiding transverse slat to deviate from a bit, immediate roof is to base, and the consequence of transverse slat immediate roof base is that thrust directly forms the horizontal thrust to base, can not form the component to base, can't increase frictional force, door just easily is open.
As preferably, described support arm is being provided with the hinged end of base the adjusting rod that can regulate support arm length, described adjusting rod is provided with the manual adjustments bolt, can first shorten adjusting rod, thereby dwindle the length of whole support arm, thus easily keeper is snapped in behind the door and makes between support arm and riser to form suitable angle, and then lengthen adjusting rod, just support arm produces the precompression to base, thereby produces the frictional force that enough prevention doors are pushed 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 can directly 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 protruding thorn or barb, can allow transverse slat more firmly be stuck in the 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 can greatly reduce the frictional force of base, easily make keeper lose efficacy.
As preferably, described support arm wall is provided with screw with it, in screw, be equipped with rotatable to regulate the fastening screw of support arm and riser spacing and angle, stop support arm to turn to and riser between angle too small, because when turning to both angles when too small, the trend that is rotated further of support arm will no longer produce the trend of mentioning L shaped top board, transverse slat just can not continue to produce the resistance of larger its rotation of prevention, the rotation trend of support arm just can be proceeded, 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 that stops door to promote, so, angle between support arm and riser is necessary can not be too small, otherwise the usefulness of keeper will descend until lost efficacy.
As preferably, the riser of described L shaped top board is provided with the spacing zone of indent, and described fastening screw points to spacing zone, with the restriction fastening screw on riser, holds out against position.
As preferably, the pin joint place of described L shaped top board and support arm is provided with the limit rotation structure, makes the angle of support arm and ground perpendicular be not less than 15 °, and the restriction support arm is around the rotation degree of base pin joint.The limit rotation structure is to guarantee that the angle between support arm and riser can not be too small equally.
As preferably, after installation, the difference that base earth point to the length on riser top surpasses riser length is greater than 2 centimetres and is less than 5 centimetres, the distance that can upwards rock according to door-plate, and this difference will obviously surpass the distance that door-plate can upwards rock.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 will be not can be along with the increase of thrust increasing friction force, keeper lost efficacy.
In sum, the present invention has the following advantages:
(1) the present invention is simple in structure, and cost of manufacture is low, and volume is little, lightweight, carry with easy for installation, only need be at door closed and lock after, keeper is stuck in behind the door in the gap with 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 to frictional force, and the power pushed is larger, and the frictional force between base and ground is larger, makes door can stop very large extrapolability, good anti-theft effect.
The accompanying drawing explanation
The structural representation that Fig. 1 is 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. screw.
The specific embodiment
Below in conjunction with accompanying drawing, with embodiment, the invention will be further described.
As Figure 1-4, Portable door bolt of the present invention, the L shaped top board 1 consisted of riser 2 and transverse slat 3, support arm 7 and base 6 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 protruding thorn, also can be arranged to barb, make transverse slat be not easy slippage in the gap from door-plate.Riser 2 upper ends are extruded with cantilever arm 4, and the external part of support arm 7 one ends and cantilever arm 4 is hinged, and the combination of L shaped top board 1, cantilever arm 4 and support arm 7 is " several " shape.The other end of support arm 7 and base 6 universal hingings, base 6 bottom surfaces are fixed with friction plate.Base 6 earth points are greater than the length of riser 2 to the length on riser 2 tops.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 joints and the angle of riser 2 are less than 45 °, and the present embodiment is set to 40 °, and the angular range of L shaped top board 1 riser 2 and transverse slat 3 is generally between 80 °～90 °, and the present embodiment is set to 90 °.
For guaranteeing that the angle between support arm and riser can not be too small, what the present embodiment adopted is to be provided with screw 11 with it at support arm 7 walls, and the rotatable fastening screw 10 with adjusting and riser 2 spacings and angle is installed in screw 11.Fastening screw 10 points to the spacing zone 5 of the indent of establishing on riser 2.
Except using a tight screw rod, also can adopt at L shaped top board 1, with the pin joint place of support arm 7, the limit rotation structure is set, make support arm 7 and the angle of ground perpendicular be not less than 15 °.
Above explanation is only explanation of the invention; make those of ordinary skills can accurately implement this programme; but be not limitation of the present invention; those skilled in the art can make to the present embodiment the modification that there is no creative contribution as required after reading this manual, all belong to claim protection domain of the present invention.
Claims (10)
1. a portable auxiliary keeper, by L shaped top board, support arm and base, formed, it is characterized in that: described L shaped top board is divided into the transverse slat in the gap that can insert 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 are hinged away from an 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; The base earth point is greater than the length of riser to the length on riser top.
2. portable auxiliary keeper according to claim 1, it is characterized in that: the line of described support arm two ends pin joint and the angle of L shaped top board riser are less than 45 °, and the angular range of described L shaped top board riser and transverse slat is between 80 °～90 °.
3. portable auxiliary keeper according to claim 1 and 2, it is characterized in that: described L shaped top board riser upper end is extruded with cantilever arm, the combination of described L shaped top board, cantilever arm and support arm is " several " shape, and the pin joint of L shaped top board and support arm is positioned at the external part of cantilever arm.
4. portable auxiliary keeper according to claim 3 is characterized in that: described support arm is being provided with the hinged end of base the adjusting rod that can regulate support arm length, and described adjusting rod is provided with the manual adjustments bolt.
5. according to claim 1,2 or 4 described portable auxiliary keepers, it is characterized in that: the articulated manner of described support arm and base is universal hinging.
6. according to claim 1,2 or 4 described portable auxiliary keepers, it is characterized in that: the external part of described L-type top board transverse slat is provided with protruding thorn or barb.
7. according to claim 1,2 or 4 described portable auxiliary keepers, it is characterized in that: described support arm wall is provided with screw with it, and the rotatable fastening screw with adjusting and riser spacing and angle is installed in screw.
8. portable auxiliary keeper according to claim 7, it is characterized in that: the riser of described L shaped top board is provided with the spacing zone of indent, and described fastening screw points to spacing zone.
9. according to claim 1,2 or 4 described portable auxiliary keepers, it is characterized in that: the pin joint place of described L shaped top board and support arm is provided with the limit rotation structure, makes the angle of support arm and ground perpendicular be not less than 15 °.
10. portable auxiliary keeper according to claim 3 is characterized in that: after installation, the difference that base earth point to the length on riser top surpasses 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 true CN103422743A (en) | 2013-12-04 |
| CN103422743B 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 (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594744A (en) * | 2015-01-22 | 2015-05-06 | 王宇航 | Safety protection device of portable door and use method of safety protection device |
| CN106285262A (en) * | 2016-10-21 | 2017-01-04 | 广西大学 | Two-part exempts to follow closely antitheft door closer |
| CN106368539A (en) * | 2016-10-21 | 2017-02-01 | 广西大学 | Arc type nail-free anti-theft door back locking device |
| CN106401336A (en) * | 2016-10-21 | 2017-02-15 | 广西大学 | Inclined push type nail-free anti-theft door blocking device |
| CN113846918A (en) * | 2021-09-09 | 2021-12-28 | 陈安 | Portable door stopper for external-open door |
Citations (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 |
| GB2398347A (en) * | 2003-01-30 | 2004-08-18 | Dennis Albert Bass | Door security devices |
| CN201246046Y (en) * | 2008-08-21 | 2009-05-27 | 卢伟 | Angle-adjustable type manual window opening fixer |
| EP2386707A2 (en) * | 2010-05-11 | 2011-11-16 | Deborah Anne Hong Lan Lee | A portable device for preventing movement of a door |
| WO2013093426A1 (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
Patent Citations (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 |
| GB2398347A (en) * | 2003-01-30 | 2004-08-18 | Dennis Albert Bass | Door security devices |
| CN201246046Y (en) * | 2008-08-21 | 2009-05-27 | 卢伟 | Angle-adjustable type manual window opening fixer |
| EP2386707A2 (en) * | 2010-05-11 | 2011-11-16 | Deborah Anne Hong Lan Lee | A portable device for preventing movement of a door |
| WO2013093426A1 (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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594744A (en) * | 2015-01-22 | 2015-05-06 | 王宇航 | Safety protection device of portable door and use method of safety protection device |
| CN104594744B (en) * | 2015-01-22 | 2016-01-20 | 王宇航 | A kind of Portable door safety device and using method thereof |
| CN106285262A (en) * | 2016-10-21 | 2017-01-04 | 广西大学 | Two-part exempts to follow closely antitheft door closer |
| CN106368539A (en) * | 2016-10-21 | 2017-02-01 | 广西大学 | Arc type nail-free anti-theft door back locking device |
| CN106401336A (en) * | 2016-10-21 | 2017-02-15 | 广西大学 | Inclined push type nail-free anti-theft door blocking device |
| CN113846918A (en) * | 2021-09-09 | 2021-12-28 | 陈安 | Portable door stopper for external-open door |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103422743B (en) | 2015-12-09 |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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 |