CN207124144U - A kind of alarm contact - Google Patents
A kind of alarm contact Download PDFInfo
- Publication number
- CN207124144U CN207124144U CN201721027987.1U CN201721027987U CN207124144U CN 207124144 U CN207124144 U CN 207124144U CN 201721027987 U CN201721027987 U CN 201721027987U CN 207124144 U CN207124144 U CN 207124144U
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- CN
- China
- Prior art keywords
- button
- cavity
- inner cylinder
- plate
- fixed plate
- 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.)
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Abstract
The utility model discloses a kind of alarm contact, belongs to safety alarm technical field.It includes shell and button, cavity is provided with shell, cavity top is provided with the jack isometrical with the external diameter of button, button is inserted in cavity by jack, cavity bottom is provided with the circular inner tube relative with button, fixed plate is provided with button, piston plate is provided with inner cylinder, connected between fixed plate and piston plate by buffer spring, space and extraneous cavity between fixed plate and piston plate is mutually unimpeded, the waist of button is provided with baffle plate, back-moving spring is provided between baffle plate and the bottom surface of cavity, inner cylinder bottom is provided with two electrodes for being used for accessing circuit, the bottom surface of piston plate is provided with metal contact pad, it is equipped with the top and bottom of cavity for first passage unimpeded with big gas phase, the bottom of inner cylinder is provided with throttle orifice.The utility model is simple in construction, is skillfully constructed, and cost is cheap, it is easy to accomplish, it is a kind of important improvement to prior art.
Description
Technical field
Safety alarm technical field is the utility model is related to, particularly relates to a kind of alarm contact.
Background technology
Alarm contact is generally arranged in police office, when there is emergency events generation, can be touched by pressing alarm contact
Alarm bell is sent out, sends alarm.However, alarm contact of the prior art generally only allows to send alarm, without allowing to cancel alarm,
Switch can only be opened to be resetted using key by wanting closing alarm contact.Although this design the peace for improving alarm contact
Quan Xing, but when there is the situation of false touch switch, then can seem very troublesome due to resetting difficult.
Utility model content
In view of this, the utility model proposes a kind of alarm contact, it has the characteristics of Time delay, can effectively prevent
Switch the situation of false touch.
Based on above-mentioned purpose, technical scheme provided by the utility model is：
A kind of alarm contact, it includes shell and button, and button is cylindrical shape, is provided with cavity in shell, cavity top is set
There is the jack isometrical with the external diameter of button, the internal diameter of cavity is more than the external diameter of button, and button is inserted in cavity by jack, cavity
Bottom is provided with the circular inner tube relative with button, and the external diameter of inner cylinder is less than the internal diameter of button, is provided with fixed plate in button, in inner cylinder
Provided with piston plate, connected between fixed plate and piston plate by buffer spring, the space between fixed plate and piston plate and the external world
Cavity is mutually unimpeded, and the waist of button is provided with baffle plate, and back-moving spring is provided between baffle plate and the bottom surface of cavity, and inner cylinder bottom, which is provided with, to be used
In two electrodes of access circuit, the bottom surface of piston plate is provided with metal contact pad, be equipped with the top and bottom of cavity be used for
The first unimpeded passage of big gas phase, the bottom of inner cylinder is provided with throttle orifice.
Optionally, button is enclosed on inner cylinder, and button is provided with mutually smooth with extraneous cavity on the barrel below fixed plate
The second logical passage.
Optionally, the bottom of inner cylinder is additionally provided with for passing air into the vent valve in inner cylinder.
Optionally, metal contact pad is magnetic material, and the bottom of inner cylinder is provided with the magnetic pole for being used for attracting metal contact pad.
From narration above as can be seen that the beneficial effect of technical solutions of the utility model is：
The utility model creates a cushion space by piston plate and throttle orifice in inner cylinder, when button is pressed
When, electrode can't be connected immediately, now, the resistance of piston plate cushion space in the thrust of buffer spring and inner cylinder
It is slowly close to electrode under effect, so as to cause a Time delay, the extraneous mistake to switch can be prevented by the delay
Touch.
In a word, the utility model is simple in construction, is skillfully constructed, and cost is cheap, it is easy to accomplish, it is one kind to prior art
Important improvement.
Brief description of the drawings
In order to clearly describe this patent, one or more accompanying drawing is provided below, these accompanying drawings are intended to this patent
Background technology, technical principle and/or some specific embodiments make aid illustration.It should be noted that these accompanying drawings can
It can not also provide some to provide and have been described and belong to known in those of ordinary skill in the art often at this patent word segment
The detail of knowledge；Also, because one of ordinary skill in the art can combine the published word content of this patent completely
And/or accompanying drawing content, more accompanying drawings, therefore these accompanying drawings below are designed in the case where not paying any creative work
Can cover can not also cover all technical schemes that this patent word segment is described.In addition, these accompanying drawings is specific interior
Containing needs the word content with reference to this patent to be determined, when word content and some obvious knot in these accompanying drawings of this patent
, it is necessary to which to carry out comprehensive descision be this on earth with reference to the narration of the common knowledge and this patent other parts of this area when structure is not consistent
The word segment of patent, which exists to exist in clerical mistake, or accompanying drawing, draws mistake.Especially, the following drawings is the figure of exemplary in nature
Piece, it is not intended that imply the protection domain of this patent, one of ordinary skill in the art is by reference to the text disclosed in this patent
Word content and/or accompanying drawing content, more accompanying drawings can be designed in the case where not paying any creative work, these are new
Technical scheme representated by accompanying drawing is still within the protection domain of this patent.
Fig. 1 is a kind of front view of alarm contact in the utility model embodiment；
Fig. 2 is a kind of Fig. 1 internal structure schematic diagram；
Fig. 3 is Fig. 1 another internal structure schematic diagram.
Embodiment
For the ease of understanding of the those skilled in the art to the art of this patent scheme, meanwhile, in order that the technology of this patent
Purpose, technical scheme and beneficial effect are clearer, and the protection domain of claims is fully supported, below with tool
The form of body case makes further, more detailed description to the technical scheme of this patent.
As shown in Figures 1 to 3, a kind of alarm contact, it includes shell 1 and button 3, and button 3 is cylindrical shape, is set in shell 1
There is cavity 2, the top of cavity 2 is provided with the jack isometrical with the external diameter of button 3, and the internal diameter of cavity 2 is more than the external diameter of button 3, button 3
It is inserted in by jack in cavity 2, the bottom of cavity 2 is provided with the circular inner tube 4 relative with button 3, and the external diameter of inner cylinder 4 is less than button 3
Internal diameter, is provided with fixed plate 33 in button 3, is provided with piston plate 34 in inner cylinder 4, passes through buffering between fixed plate 33 and piston plate 34
Spring 35 connects, and the space between fixed plate 33 and piston plate 34 and extraneous cavity 2 are mutually unimpeded, and the waist of button 3 is provided with baffle plate
31, back-moving spring 23 is provided between baffle plate 31 and the bottom surface of cavity 2, the bottom of inner cylinder 4 is provided with two electrodes for being used for accessing circuit
5, the bottom surface of piston plate 34 is provided with metal contact pad, and the top 11 of cavity 2 and bottom are equipped with for unimpeded with big gas phase
One passage 21 and 22, the bottom of inner cylinder 4 are provided with throttle orifice 41.
Optionally, still see Fig. 2, button 3 is enclosed on inner cylinder 4, button 3 on the barrel below fixed plate 33 be provided with
The second mutually unimpeded passage 32 of extraneous cavity.
Optionally, the bottom of inner cylinder is additionally provided with for passing air into the vent valve in inner cylinder.
Optionally, metal contact pad is magnetic material, and the bottom of inner cylinder is provided with the magnetic pole for being used for attracting metal contact pad.
In above-described embodiment, piston plate and throttle orifice create a cushion space in inner cylinder jointly, when button is pressed
When lower, electrode can't be connected immediately, now, the resistance of piston plate cushion space in the thrust of buffer spring and inner cylinder
It is slowly close to electrode under power effect, so as to cause a Time delay, by the delay external world can be prevented to switch
False touch.
In addition, the first passage and the second passage can make free air flow, so as to prevent between corresponding assembly
Air damping.Magnetic pole can hold metal contact pad, strengthen the stability of switch.On the other hand, after switch is triggered, due to
The throttling action metal contact pad of throttle orifice will not leave electrode immediately, at this point it is possible to make alarm contact multiple immediately by vent valve
Position disconnects.
It can be seen that the utility model is simple in construction, it is skillfully constructed, cost is cheap, it is easy to accomplish, it is one kind to prior art
Important improvement.
It is to be appreciated that to be intended merely to facilitate this area common for the above-mentioned narration for this patent embodiment
The exemplary description that technical staff understands this patent scheme and enumerated, does not imply that the protection domain of this patent is limited solely to
In this few example, those of ordinary skill in the art completely can on the premise of making and fully understanding to the art of this patent scheme,
In the form of not paying any creative work, by taking each example cited by this patent combination technique feature, replacing
Some technical characteristics, more technical characteristics etc. mode is added, obtain more embodiments, all these specific implementations
Mode is within the covering scope of patent claims book, and therefore, these new embodiments also should be in this patent
Protection domain within.
In addition, for the purpose for simplifying narration, this patent may also not enumerate some ordinary specific embodiments, this
A little schemes are that those of ordinary skill in the art can expect naturally after it understanding of the art of this patent scheme, it is clear that this
A little schemes should be also included within the protection domain of this patent.
For the purpose for simplifying narration, above-mentioned each embodiment may only up to for the extent of disclosure of ins and outs
The degree that can voluntarily make a decision to those skilled in the art, i.e. there is no disclosed ins and outs for above-mentioned embodiment,
Those of ordinary skill in the art completely can be in the case where not paying any creative work, in filling for the art of this patent scheme
Divide under prompting, completed by means of the disclosed document of textbook, reference book, paper, patent, audio-visual product etc., or, this
A little details are the contents that can voluntarily be maked decision according to actual conditions under being generally understood that of those of ordinary skill in the art.
It can be seen that even if these underground ins and outs, the open adequacy of the art of this patent scheme will not also be impacted.
In a word, it is any on the basis of explanation effect of the patent specification to claims protection domain is combined
Fall into the specific embodiment of patent claims book covering scope, within the protection domain of this patent..
Claims (4)
1. a kind of alarm contact, it is characterised in that including shell and button, the button is cylindrical shape, is provided with the shell
Cavity, the cavity top are provided with the jack isometrical with the external diameter of the button, and the internal diameter of the cavity is more than the button
External diameter, the button are inserted in the cavity by the jack, and the cavity bottom is provided with the circle relative with the button
Inner cylinder, the external diameter of the inner cylinder are less than the internal diameter of the button, are provided with fixed plate in the button, piston is provided with the inner cylinder
Plate, connected between the fixed plate and piston plate by buffer spring, the space between the fixed plate and piston plate and the external world
Cavity is mutually unimpeded, and the waist of the button is provided with baffle plate, and back-moving spring, institute are provided between the baffle plate and the bottom surface of the cavity
State inner cylinder bottom and be provided with two electrodes for being used for accessing circuit, the bottom surface of the piston plate is provided with metal contact pad, the cavity
Top and bottom be equipped with and be provided with throttle orifice for first passage unimpeded with big gas phase, the bottom of the inner cylinder.
2. alarm contact according to claim 1, it is characterised in that the button is enclosed on the inner cylinder, the button
Second passage mutually unimpeded with extraneous cavity is provided with the barrel below the fixed plate.
3. alarm contact according to claim 1, it is characterised in that the bottom of the inner cylinder is additionally provided with for making air stream
Enter the vent valve in inner cylinder.
4. alarm contact according to claim 1, it is characterised in that the metal contact pad is magnetic material, the inner cylinder
Bottom be provided with and be used to attract the magnetic pole of the metal contact pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721027987.1U CN207124144U (en) | 2017-08-17 | 2017-08-17 | A kind of alarm contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721027987.1U CN207124144U (en) | 2017-08-17 | 2017-08-17 | A kind of alarm contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207124144U true CN207124144U (en) | 2018-03-20 |
Family
ID=61602779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721027987.1U Expired - Fee Related CN207124144U (en) | 2017-08-17 | 2017-08-17 | A kind of alarm contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207124144U (en) |
-
2017
- 2017-08-17 CN CN201721027987.1U patent/CN207124144U/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: 20180320 Termination date: 20210817 |