CN207791362U - Vacuum warning device and sealing machine including it - Google Patents
Vacuum warning device and sealing machine including it Download PDFInfo
- Publication number
- CN207791362U CN207791362U CN201820034351.8U CN201820034351U CN207791362U CN 207791362 U CN207791362 U CN 207791362U CN 201820034351 U CN201820034351 U CN 201820034351U CN 207791362 U CN207791362 U CN 207791362U
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- vacuum
- warning device
- pressure switch
- switch
- negative pressure
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Abstract
The utility model provides a kind of vacuum warning device and the sealing machine including it, whether reach preset negative pressure value in vacuum line for detecting, the vacuum warning device includes pressure switch and alarm, the pressure switch is equipped with connects gas port for what is be connected to vacuum line, when the negative pressure connect in gas port is not up to preset negative pressure value, the pressure switch is connected, and the alarm is electrically connected with the pressure switch, and sends out alarm when the pressure switch is connected.The vacuum warning device of the utility model and including its sealing machine structure it is simple, can remind in time operating personnel open vacuum extractor, to ensure that packaging product quality.
Description
Technical field
The utility model is related to packaging field, more particularly to a kind of vacuum warning device and the sealing machine including it.
Background technology
Salbutamol sulfate aerosol is more sensitive to moisture, therefore the requirement to humidity is stringenter, so ensuring
Outside production environment humidity complies with standard, there is a step vacuum pumping while sealing operation, in order to remove in aluminium pot
The moisture that air carries.In process of production, there is the possibility for forgeing the vacuum extractor for opening sealing machine in operating personnel, cause
The moisture that air carries in aluminium pot is not removed, and there are hidden danger of quality.It attempted in the prior art the switch of sealing machine is true with pumping
The switch setting of empty device still can occur operating personnel using this structure setting and forget to turn on pumping very in same position
The case where empty device.
Utility model content
The technical problems to be solved in the utility model is that operating personnel pass through when operating sealing machine in the prior art to overcome
The defect for often forgetting to turn on vacuum extractor, provides a kind of vacuum warning device and the sealing machine including it.
The utility model is to solve above-mentioned technical problem by following technical proposals：
Whether a kind of vacuum warning device reaches preset negative pressure value for detecting in vacuum line, feature is, institute
Stating vacuum warning device includes：
Pressure switch, the pressure switch is equipped with the gas port that connects for being connected to vacuum line, described to connect bearing in gas port
When pressure is not up to preset negative pressure value, the pressure switch is connected；With
Alarm, the alarm are electrically connected with the pressure switch, and send out police when the pressure switch is connected
Report.
Pressure switch is connected to vacuum line, it is generally the case that ensure having negative pressure in vacuum line always, if vacuum tube
There is negative pressure in road, then negative pressure is also had in pressure switch, as long as negative pressure maintains certain range of set value, pressure switch
Be in just off-state always, if negative pressure one in vacuum line decline and be reduced to original range of set value hereinafter, that
It will cause the circuit variation in pressure switch, pressure switch that will connect.
Preferably, the pressure switch further includes Switch main body, piston piece and blocking portion, the inside of the Switch main body and
Described to connect gas port connection, the piston piece is set to inside the Switch main body and is slidingly sealed with the inner wall of the Switch main body,
The blocking portion is set on the inner wall of the Switch main body, when the negative pressure connect in gas port is not up to preset negative pressure value,
The piston piece is contacted with the blocking portion, to connect the pressure switch.
According to the variation of air pressure in Switch main body, piston piece can be slided correspondingly in Switch main body, piston piece sliding
It can be contacted to when certain degree with blocking portion, to which cut-in pressure switchs.
Preferably, the pressure switch further includes the first terminals and the second terminals, first terminals are set to institute
Piston piece is stated, second terminals are set to the blocking portion, and the piston piece is contacted with the blocking portion, to described first
Terminals and second terminals electrical connection.It adopts at the position that first terminals and second terminals contact with each other
Use conductive material.Pressure switch is electrically connected by the first terminals and the second terminals with other electronic devices.Piston piece and blocking
The contact in portion means that the connection of the first terminals and the second terminals.
Preferably, the inside of the Switch main body is divided into the first chamber and the second chamber, first chamber by the piston piece
It is connected to the gas port that connects, second chamber is used for and atmosphere.Piston piece can slide, while the side of piston piece is big
Atmospheric pressure, side are the pressure in vacuum line, in this way when the pressure in vacuum line changes, the movement shape of piston piece
State and position can all occur correspondingly to change, and so as to cause the variation of the circuit of pressure switch, and then trigger alarm.
Preferably, the pressure switch further includes elastic component, the elastic component applies towards the resistance piston piece
The power of stopper.Elastic component applies piston piece the power towards blocking portion, and the negative pressure from vacuum line deviates from piston piece application
The power of blocking portion.In the case that negative pressure is enough in vacuum line, the power for the negative pressure that piston piece is subject to is acted on more than elastic component
Power on piston piece, thus piston piece leaves blocking portion, to keep the disconnection of pressure switch.Once negative pressure disappears in vacuum line
It loses or negative pressure drops to setting value hereinafter, piston piece is since the effect of elastic component can be contacted with blocking portion, to cut-in pressure
Switch causes alarm equipment alarm.
Preferably, the vacuum warning device further includes three-way connection, the three-way connection is for being connected to the vacuum blocked
Pipeline and described connect gas port.By three-way connection, it can realize and easily be connected to pressure switch with vacuum line, and can
There is good leakproofness, prevents the junction gas leakage of pressure switch and vacuum line.
Preferably, the alarm is audible-visual annunciator.Audible-visual annunciator can be simultaneously emitted by flash of light when connecting
Alarm and buzzing alarming, to remind operating personnel to check in vacuum line whether there is enough negative pressure in a manner of more.
A kind of sealing machine, feature be, the sealing machine includes such as above-mentioned vacuum warning device, and the sealing machine is also
Including closing device and vacuum extractor, the closing device is connected with the vacuum extractor by the vacuum line.By
In provided with vacuum warning device, when closing device works, if vacuum extractor has been switched on, without any police
Report, closing device normal work.If vacuum extractor be not turned on or vacuum line in negative pressure be not enough to reach setting
It is worth, then vacuum warning device sends out alarm, and operating personnel is reminded to check whether vacuum extractor is opened or whether have gas leakage existing
As.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can arbitrarily combine to get the utility model respectively compared with
Good example.
The positive effect of the utility model is：The vacuum warning device of the utility model and the sealing machine including it
It is simple in structure, operating personnel can be reminded to open vacuum extractor in time, to ensure that the quality of packaging product.
Description of the drawings
Fig. 1 is the structural schematic diagram of the vacuum warning device of the preferred embodiment of the utility model.
Fig. 2 is the structural schematic diagram of the pressure switch of the preferred embodiment of the utility model.
Fig. 3 is the structural schematic diagram of the sealing machine of the preferred embodiment of the utility model.
Reference sign：
Pressure switch 1
Connect gas port 11
Switch main body 12
First chamber 121
Second chamber 122
Piston piece 13
Blocking portion 14
Elastic component 15
Alarm 2
Vacuum line 3
Three-way connection 4
Closing device 5
Vacuum extractor 6
Specific implementation mode
A preferred embodiment is named, and completely illustrates the utility model in conjunction with attached drawing to become apparent from.
The vacuum warning device of the present embodiment is as shown in Figure 1 to Figure 3, whether reaches preset in vacuum line for detecting
Negative pressure value, as shown in Figure 1, vacuum warning device includes pressure switch 1 and alarm 2, pressure switch 1, which is equipped with, to be used for and vacuum tube
What road 3 was connected to connects gas port 11, and when connecing the negative pressure in gas port 11 and being not up to preset negative pressure value, pressure switch 1 is connected, alarm 2
It is electrically connected with pressure switch 1, and alarm is sent out when pressure switch 1 is connected.
Pressure switch 1 is connected to vacuum line 3, it is generally the case that ensure there is negative pressure always in vacuum line 3, if very
There is negative pressure in blank pipe road 3, then negative pressure is also had in pressure switch 1, as long as negative pressure maintains certain range of set value, pressure
Power switch 1 is in just off-state always, as long as the negative pressure one in vacuum line 3 declines and is reduced to original range of set value
Hereinafter, will so cause the circuit variation in pressure switch 1, pressure switch 1 will be connected.Due to pressure switch 1 and alarm
Device 2 is electrically connected, as long as pressure switch 1 is connected, alarm 2 is alarmed at once, and at this time staff will know that in vacuum line 3
Negative pressure is insufficient, will check failure, the negative pressure in vacuum line 3 is made to reach range of set value again.
As shown in Fig. 2, pressure switch 1 further includes Switch main body 12, piston piece 13 and blocking portion 14, Switch main body 12 it is interior
Portion is connected to gas port 11 is connect, and piston piece 13 is set to 12 inside of Switch main body and is slidingly sealed with the inner wall of Switch main body 12, stops
Portion 14 is set on the inner wall of Switch main body 12, when connecing the negative pressure in gas port 11 and being not up to preset negative pressure value, piston piece and resistance
Stopper 14 contacts, to cut-in pressure switch 1.According to the variation of air pressure in Switch main body 12, piston piece 13 can correspondingly exist
Sliding in Switch main body 12 can contact when piston piece 13 slides into certain degree with blocking portion 14, to which cut-in pressure switchs
1.Such as Switch main body 12 can be placed vertically, blocking portion 14 is located at the lower section of piston piece 13, the space of 13 top of piston piece
It is connected to vacuum line 3, the space of 13 lower section of piston piece and atmosphere.When the negative pressure in vacuum line 3 is greater than the set value,
Piston piece 13 is more than piston piece 13 gravity of itself by upward suction, and piston piece 13 is resisted against the upper of Switch main body 12 at this time
End, once the negative pressure in vacuum line 3 is less than setting value, piston piece 13 is fallen due to the effect of gravity, is fallen on resistance naturally
It is contacted with blocking portion 14 in stopper 14, to cut-in pressure switch 1.
Pressure switch 1 further includes the first terminals and the second terminals, and the first terminals are set to piston piece 13, the second wiring
End is set to blocking portion 14, and piston piece is contacted with blocking portion, to which the first terminals and the second terminals are electrically connected.First terminals
Pressure switch 1 is electrically connected with other electronic devices with the second terminals.Piston piece 13 is meant that with the contact of blocking portion 14
Circuit is connected.
The inside of Switch main body 12 is divided into the first chamber 121 and the second chamber 122 by piston piece 13, the first chamber 121 with connect gas
Mouth 11 is connected to, and the second chamber 122 is used for and atmosphere.Piston piece 13 can slide, while the side of piston piece 13 is atmospheric pressure
Power, side are the pressure in vacuum line 3, in this way when the pressure in vacuum line 3 changes, the movement shape of piston piece 13
State and position can all occur correspondingly to change, and so as to cause the variation of the circuit of pressure switch 1, and then trigger alarm 2.
As shown in Fig. 2, pressure switch 1 further includes elastic component 15, elastic component 15 applies towards blocking portion 14 piston piece 13
Power.Elastic component 15 applies piston piece 13 power towards blocking portion 14, and the negative pressure from vacuum line 3 applies piston piece 13
Away from the power of blocking portion 14.In the case that negative pressure is enough in vacuum line 3, the power for the negative pressure that piston piece 13 is subject to is more than elasticity
Part 15 acts on the power on piston piece 13, thus piston piece 13 leaves blocking portion 14, to keep the disconnection of pressure switch 1.One
Negative pressure disappears in denier vacuum line 3 or negative pressure drops to setting value hereinafter, piston piece 13 can be with due to the effect of elastic component 15
Blocking portion 14 contacts, and to cut-in pressure switch 1, causes alarm 2 and alarms.Alarm 2 is audible-visual annunciator 2.Sound-light alarm
Device 2 can be simultaneously emitted by warning blinker and buzzing alarming when connecting, to remind operating personnel to examine in a manner of more
Whether look into has enough negative pressure in vacuum line 3.In the present embodiment, elastic component 15 is spring, and spring is in tensional state.
Vacuum warning device further includes three-way connection 4, and three-way connection 4 is used to be connected to the vacuum line 3 blocked and connects gas port
11.By three-way connection 4, it can realize and easily be connected to pressure switch 1 with vacuum line 3, and can have close well
Feng Xing prevents the junction gas leakage of pressure switch 1 and vacuum line 3.
The sealing machine of the present embodiment, as shown in figure 3, sealing machine includes such as above-mentioned vacuum warning device, sealing machine also wraps
Closing device 5 and vacuum extractor 6 are included, closing device 5 and vacuum extractor 6 are connected by vacuum line 3.Closing device 5 exists
When work, and when vacuum extractor 6 is not opened, vacuum warning device sends out alarm.Due to being provided with vacuum warning device,
When closing device 5 works, if vacuum extractor 6 has been switched on, without any alarm, closing device 5 works normally.
If vacuum extractor 6 be not turned on or vacuum line 3 in negative pressure be not enough to reach setting value, vacuum warning device
Alarm is sent out, operating personnel is reminded to check whether vacuum extractor 6 is opened or whether have gas leak phenomenon.
The vacuum warning device of the present embodiment and including its sealing machine structure it is simple, operating personnel can be reminded to beat in time
Vacuum extractor is opened, to ensure that the quality of packaging product.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
Under the premise of without departing substantially from the principles of the present invention and essence, many changes and modifications may be made,
But these change and modification each fall within the scope of protection of the utility model.
Claims (8)
1. whether a kind of vacuum warning device reaches preset negative pressure value, which is characterized in that described for detecting in vacuum line
Vacuum warning device includes：
Pressure switch, the pressure switch are equipped with the gas port that connects for being connected to vacuum line, and the negative pressure connect in gas port is not
When reaching preset negative pressure value, the pressure switch is connected；With
Alarm, the alarm are electrically connected with the pressure switch, and send out alarm when the pressure switch is connected.
2. vacuum warning device as described in claim 1, which is characterized in that the pressure switch further includes Switch main body, work
Plug member and blocking portion, the inside of the Switch main body are connected to the gas port that connects, and the piston piece is set in the Switch main body
Portion is simultaneously slidingly sealed with the inner wall of the Switch main body, and the blocking portion is set on the inner wall of the Switch main body, is connect described
When negative pressure in gas port is not up to preset negative pressure value, the piston piece is contacted with the blocking portion, to connect the pressure
Switch.
3. vacuum warning device as claimed in claim 2, which is characterized in that the pressure switch further include the first terminals and
Second terminals, first terminals are set to the piston piece, and second terminals are set to the blocking portion, the piston
Part is contacted with the blocking portion, to which first terminals and second terminals are electrically connected.
4. vacuum warning device as claimed in claim 2, which is characterized in that the piston piece is by the inside of the Switch main body
It is divided into the first chamber and the second chamber, first chamber is connected to the gas port that connects, and second chamber is used for and atmosphere.
5. vacuum warning device as claimed in claim 2, which is characterized in that the pressure switch further includes elastic component, described
Elastic component applies the piston piece power towards the blocking portion.
6. vacuum warning device as described in claim 1, which is characterized in that the vacuum warning device further includes three connecting
Head, the three-way connection is for being connected to the vacuum line blocked and described connecing gas port.
7. the vacuum warning device as described in claim 1 to 6 any one, which is characterized in that the alarm is acousto-optic report
Alert device.
8. a kind of sealing machine, which is characterized in that the sealing machine includes the vacuum report as described in claim 1 to 7 any one
Alarm device, the sealing machine further include closing device and vacuum extractor, and the closing device and the vacuum extractor pass through
The vacuum line connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820034351.8U CN207791362U (en) | 2018-01-09 | 2018-01-09 | Vacuum warning device and sealing machine including it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820034351.8U CN207791362U (en) | 2018-01-09 | 2018-01-09 | Vacuum warning device and sealing machine including it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207791362U true CN207791362U (en) | 2018-08-31 |
Family
ID=63278501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820034351.8U Active CN207791362U (en) | 2018-01-09 | 2018-01-09 | Vacuum warning device and sealing machine including it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207791362U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110807902A (en) * | 2019-10-29 | 2020-02-18 | 华中科技大学同济医学院附属协和医院 | Alarm for pressure disappearance at central negative pressure and terminal pressure |
| CN114290421A (en) * | 2021-12-20 | 2022-04-08 | 珠海格力智能装备有限公司 | Automatic control method and device for dust collection pipeline of drilling machine |
-
2018
- 2018-01-09 CN CN201820034351.8U patent/CN207791362U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110807902A (en) * | 2019-10-29 | 2020-02-18 | 华中科技大学同济医学院附属协和医院 | Alarm for pressure disappearance at central negative pressure and terminal pressure |
| CN114290421A (en) * | 2021-12-20 | 2022-04-08 | 珠海格力智能装备有限公司 | Automatic control method and device for dust collection pipeline of drilling machine |
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| GR01 | Patent grant |