CN207212219U - A kind of device for preventing a tong - Google Patents
A kind of device for preventing a tong Download PDFInfo
- Publication number
- CN207212219U CN207212219U CN201720992597.1U CN201720992597U CN207212219U CN 207212219 U CN207212219 U CN 207212219U CN 201720992597 U CN201720992597 U CN 201720992597U CN 207212219 U CN207212219 U CN 207212219U
- Authority
- CN
- China
- Prior art keywords
- door leaf
- trigger switch
- contact
- door
- self
- 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
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- Emergency Lowering Means (AREA)
Abstract
The purpose of this utility model is to design a kind of device for preventing a tong, is made up of door leaf, doorframe, trigger switch, clinohedral, self-powered relay, door-hinge, contact positive pole, contact negative pole.Installation is connected to the self-powered relay of clinohedral and trigger switch on door leaf.When there is child's shutdown, when hand does not leave the edge of door leaf in time, hand is just sandwiched between doorframe and the edge of door leaf, at this moment certain space is also left between door leaf and doorframe, the trigger switch of door leaf edge, which will be under pressure, makes the contact positive pole of inside be connected with contact negative pole, and at this moment self-powered relay switches on power, clinohedral ejects, it is inserted in the space left between door leaf and doorframe, and gap is supportted greatly, so that the hand of child is not jammed.After the hand of child leaves, door again can be with normal switching-off.
Description
Technical field
A kind of device for preventing a tong is the utility model is related to, can prevent from clamping finger during pediatric switch door, for life
It is convenient to provide.
Background technology
The door that we use at present, it is easy to clamp the hand of children during switch, causes serious injury, for children
There is very big hidden danger.
The content of the invention
In order to overcome the shortcomings of that existing door uses technology, the utility model provides a kind of device for preventing a tong.
Technical scheme is used by the utility model solves its technical problem：A kind of device for preventing a tong, by door
Fan, doorframe, trigger switch, clinohedral, self-powered relay, door-hinge, contact positive pole, contact negative pole composition.In door leaf
Upper lateral part installs self-powered relay, and self-powered relay is connected to clinohedral and trigger switch, had in trigger switch tactile
Piece positive pole and contact negative pole, trigger switch are normally opens, and trigger switch contact positive pole and contact after by ambient pressure are born
It can extremely connect.When there is child's shutdown, when hand does not leave the edge of door leaf in time, hand is just sandwiched in the edge of doorframe and door leaf
Between, certain space is at this moment also left between door leaf and doorframe, the trigger switch of door leaf edge will be under pressure and make inside
Contact positive pole connected with contact negative pole, at this moment self-powered relay switches on power, clinohedral ejection, be inserted in door leaf and doorframe
Between in the space left, door leaf rotates along door-hinge, and gap is stretched, so that the hand of child is not jammed.When child's
When hand leaves crack between a door and its frame, the trigger switch of door leaf edge disconnects without the contact positive pole inside pressure and contact negative pole, at this moment certainly
Charged relay deenergization, clinohedral are withdrawn, and door again can be with normal switching-off.
Brief description of the drawings
Fig. 1, Fig. 2, Fig. 3, Fig. 4 are structure principle charts of the present utility model.
In Fig. 1, Fig. 2, Fig. 3, Fig. 4：1 door leaf, 2 trigger switch, 3 clinohedrals, 4 self-powered relays, 5 door-hinges, 6 are touched
Piece positive pole, 7 contact negative poles, 8 doorframes
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.
In Fig. 1, Fig. 2, Fig. 3, Fig. 4, when there is child's shutdown, when hand does not leave the edge of door leaf 1 in time, hand is just sandwiched in
Between the edge of doorframe 8 and door leaf 1, certain space is at this moment also left between door leaf 1 and doorframe 8, the triggering of door leaf edge is opened
Closing 2 and will being under pressure connects internal contact positive pole 6 and contact negative pole 7, and at this moment self-powered relay 4 switches on power,
Clinohedral 3 ejects, and is inserted in the space left between door leaf 1 and doorframe 8, and door leaf 1 rotates along door-hinge 5, and gap is stretched, from
And the hand of child is set not to be jammed.When the hand of child leaves crack between a door and its frame, the trigger switch 2 of door leaf edge without pressure inside
Contact positive pole 6 and contact negative pole 7 are disconnected, and at this moment the self-powered deenergization of relay 4, clinohedral 3 are withdrawn, and door again can be just
Often close.
Claims (5)
1. a kind of device for preventing a tong, by door leaf, doorframe, trigger switch, clinohedral, self-powered relay, door-hinge, touch
Piece positive pole, contact negative pole composition, it is characterized in that, self-powered relay, self-powered relay are installed in the inside upper part of door leaf
Device is connected to clinohedral and trigger switch.
2. a kind of device for preventing a tong as claimed in claim 1, it is characterised in that have contact in described trigger switch
Positive pole and contact negative pole.
3. a kind of device for preventing a tong as claimed in claim 1, it is characterised in that described trigger switch is normally opened shape
State.
4. a kind of device for preventing a tong as claimed in claim 1, it is characterised in that described trigger switch is by outer
Contact positive pole can be connected with contact negative pole after boundary's pressure.
5. a kind of device for preventing a tong as claimed in claim 1, it is characterised in that described trigger switch is except going
Contact positive pole and contact negative pole reply off-state after boundary's pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720992597.1U CN207212219U (en) | 2017-08-01 | 2017-08-01 | A kind of device for preventing a tong |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720992597.1U CN207212219U (en) | 2017-08-01 | 2017-08-01 | A kind of device for preventing a tong |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207212219U true CN207212219U (en) | 2018-04-10 |
Family
ID=61818199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720992597.1U Expired - Fee Related CN207212219U (en) | 2017-08-01 | 2017-08-01 | A kind of device for preventing a tong |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207212219U (en) |
-
2017
- 2017-08-01 CN CN201720992597.1U patent/CN207212219U/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 |
Granted publication date: 20180410 Termination date: 20180801 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |