CN207598061U - A kind of alarm - Google Patents
A kind of alarm Download PDFInfo
- Publication number
- CN207598061U CN207598061U CN201721685462.7U CN201721685462U CN207598061U CN 207598061 U CN207598061 U CN 207598061U CN 201721685462 U CN201721685462 U CN 201721685462U CN 207598061 U CN207598061 U CN 207598061U
- Authority
- CN
- China
- Prior art keywords
- column
- branch arm
- arm
- bearing
- support arm
- 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.)
- Expired - Fee Related
Links
- 239000003381 stabilizer Substances 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 1
Landscapes
- Burglar Alarm Systems (AREA)
Abstract
The utility model is related to a kind of alarms that can prevent door from being opened by violence.The alarm includes main body, support arm and bearing, the main body is made of stabilizer blade and column, the stabilizer blade and column-type l-shaped, the support arm is made of upper branch arm and lower branch arm, and the angle between the upper branch arm and lower branch arm is more than 90 °, and the upper end of the upper branch arm is hinged on column, the bearing has screw rod, handwheel is threaded on the screw rod, the bottom of the lower branch arm offers adjustment hole, and the screw rod of the bearing is located in adjustment hole.This alarm can limit door and be opened from the outside, have the characteristics that be convenient for carrying, anti-theft is strong, cheap.
Description
Technical field
The utility model is related to a kind of alarms, and in particular to a kind of alarm that can be limited door and be opened.
Background technology
Although door lock can play antitheft effect, but it is easy to be opened by thief, for the people often to haunt outside
For, although the door at hotel can be lockked with door lock, but feel misgivings, it is impossible to feel at ease to sleep.
Invention content
In view of the shortcomings of the prior art, the utility model innovation, which provides, a kind of can prevent what door from being opened by violence
Alarm.
The alarm includes main body, support arm and bearing, and the main body is made of stabilizer blade and column, the stabilizer blade with
Column-type l-shaped, the support arm are made of upper branch arm and lower branch arm, and the angle between the upper branch arm and lower branch arm is more than 90 °,
The upper end of the upper branch arm is hinged on column, and the bearing has screw rod, handwheel is threaded on the screw rod, under described
The bottom of support arm offers adjustment hole, and the screw rod of the bearing is located in adjustment hole.
The lower branch arm is equipped with interior support arm, and the interior support arm can be acted on column.
When interior support arm is acted on column, lower branch arm and column keeping parallelism.
The L-type lateral surface of the main body is equipped with rubber face.
The upper end of the column is extended with connecting portion to rear side, and the upper end of the upper branch arm is hinged on connecting portion.
According to a kind of alarm provided by the utility model, door can be limited and be opened from the outside, have be convenient for carrying,
The features such as anti-theft is strong, cheap.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the usage state diagram of the utility model.
Specific embodiment
As shown in Figure 1, the alarm includes main body, support arm and bearing 5, main body is made of stabilizer blade 2 and column 1, branch
Foot 2 forms L-type with column 1；Support arm is made of upper branch arm 3 and lower branch arm 4, and the angle between upper branch arm 3 and lower branch arm 4 is more than
90°；The upper end of upper branch arm 3 is hinged on column 1（The upper end of column 1 is extended with connecting portion 10, the upper end of upper branch arm 3 to rear side
It is just hinged on connecting portion 10）；Bearing 5 has screw rod 6, and handwheel 7 is threaded on screw rod 6, is opened in the bottom of lower branch arm 4
Equipped with adjustment hole 40, the screw rod 6 of bearing 5 is located in adjustment hole 40.
As shown in Fig. 2, in use, the stabilizer blade 2 of main body is stuck under door, the column 1 of main body is allowed to be attached on door, is then rotated
Support arm allows the lower branch arm 4 of support arm perpendicular to ground, and bearing 5 is allowed to be laid flat simultaneously, at this moment the handwheel 7 on rotating stand 5, allows hand
Wheel 7 slowly rises, and withstand support arm, whole so to be just fixed.When door is pushed, door inward force acts on column 1
On, power is driven to support arm and bearing 5 by column 1, and power is transmitted to ground by support arm with bearing 5.Therefore, no matter the external world make it is more
Energetically, door cannot be all opened, plays antitheft effect.
If it find that after door lock is unlocked, door can not be opened, and thief may be had found this anti-by the crack between a door and its frame of bottom
Steal the presence of device, it is thus possible to the entire support knot of alarm can be destroyed by tapping the means of stabilizer blade 2 inwardly from bottom
Structure.For this purpose, the utility model is equipped with interior support arm 8 also on lower branch arm 4, which can act on column 1.Due to interior branch
The presence of arm 8, when external force taps stabilizer blade 2, power can be transmitted on bearing 5 by interior support arm 8, so as to improve the anti-theft of alarm
Energy.
When the interior support arm 8 of the utility model is acted on column 1, lower branch arm 4 and 1 keeping parallelism of column, this structure is not
It is only capable of improving anti-theft, and lower branch arm 4 can be allowed vertical with ground holding as long as interior support arm 8 is leaned against on column 1, without again
Angle is adjusted, so as to more convenient to use.
Finally it is worth mentioning that in order to improve the frictional force of main body and door, the utility model is on the outside of the L-type of main body
Face is equipped with rubber face 9, and rubber face 9 can not only improve frictional force, and can also buffer extraneous thrust, therefore is not only to anti-
The protection of device is stolen still to the anti-theft performance of alarm, is obviously improved.
Claims (5)
1. a kind of alarm, it is characterised in that：Include main body, support arm and bearing, the main body is by stabilizer blade and column structure
Into the stabilizer blade and column-type l-shaped, the support arm is made of upper branch arm and lower branch arm, between the upper branch arm and lower branch arm
Angle be more than 90 °, the upper end of the upper branch arm is hinged on column, and the bearing has screw rod, and screw thread connects on the screw rod
Handwheel is connected to, the bottom of the lower branch arm offers adjustment hole, and the screw rod of the bearing is located in adjustment hole.
2. a kind of alarm according to claim 1, it is characterised in that：The lower branch arm is equipped with interior support arm, described interior
Support arm can be acted on column.
3. a kind of alarm according to claim 2, it is characterised in that：When interior support arm is acted on column, lower branch arm
With column keeping parallelism.
4. a kind of alarm according to claim 1 or 2, it is characterised in that：The L-type lateral surface of the main body is equipped with rubber
Glue surface.
5. a kind of alarm according to claim 1 or 2, it is characterised in that：The upper end of the column is extended with to rear side
Connecting portion, the upper end of the upper branch arm are hinged on connecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721685462.7U CN207598061U (en) | 2017-12-07 | 2017-12-07 | A kind of alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721685462.7U CN207598061U (en) | 2017-12-07 | 2017-12-07 | A kind of alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207598061U true CN207598061U (en) | 2018-07-10 |
Family
ID=62762404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721685462.7U Expired - Fee Related CN207598061U (en) | 2017-12-07 | 2017-12-07 | A kind of alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207598061U (en) |
-
2017
- 2017-12-07 CN CN201721685462.7U patent/CN207598061U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180710 Termination date: 20181207 |