CN203248344U - Inflatable device - Google Patents
Inflatable device Download PDFInfo
- Publication number
- CN203248344U CN203248344U CN 201320219836 CN201320219836U CN203248344U CN 203248344 U CN203248344 U CN 203248344U CN 201320219836 CN201320219836 CN 201320219836 CN 201320219836 U CN201320219836 U CN 201320219836U CN 203248344 U CN203248344 U CN 203248344U
- Authority
- CN
- China
- Prior art keywords
- metering cylinder
- air flow
- charger
- gas
- gas circuit
- 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 - Lifetime
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Abstract
The utility model relates to the technical field of filling devices and discloses an inflatable device which comprises a metering cylinder and an inflation head. The metering cylinder is connected with the inflation head. The inflatable device further comprises an air flow control device which is arranged between the metering cylinder and the inflation head. The trigger condition of an air flow control device opening air channel is that air flow pressure in the metering cylinder is equal to the air flow pressure value required by a product formula of a filled product. The trigger condition of an air flow control device closing air channel is that the air flow pressure in the metering cylinder is equal to zero. According to the inflatable device, accuracy of air inflating volume can be improved, the step of using a pharmacist balance to control the air inflation amount in the prior art is eliminated, and the risk of explosion of the filled product due to the facts that a control switch of the inflatable device is opened by mistake and excessive air is filled inside the filled product is effectively prevented. The inflatable device is simple in structure, easy to realize, good in use effect and suitable for popularization and application.
Description
Technical field
The utility model relates to the filling device technical field, mainly is applicable to gas is carried out can.
Background technique
The charger that uses at present, for example dimethyl ether filling machine, freon filling machine, in process of production, its power source comes from air compressor.When promoting gas apparatus and be activated, the suction booster of charger gas is filled with metering cylinder so that the gas in the metering cylinder directly in pneumatic head is filled with by the can body.Because the power source of charger comes from air compressor, and the pressure size of air compressor is unstable, and to promote gas be to supply with metering cylinder from air-pot, and when the pressure decreased in the air-pot, meeting is so that deviation can occur the gas weight of can.The normal method that detects the gas loading is to use pharmacist balance to control.Because use pharmacist balance control gas loading, program comparision is loaded down with trivial details, and accurate not, is finally promoted unsaturated vapor by the bulking agent product of can because of inside, can cause effective component not use fully, and product quality is impacted.
Existing propellant gas equipment exists following problems in actual applications:
1. because the device of tolerance in the metering cylinder not being monitored, operator open the propellant gas equipment control switch one time, suction booster is just once inflated metering cylinder, the gas in the metering cylinder just directly by pneumatic head to being inflated by the can body, the inflation precision is difficult to control.
2. after by product-filled gassy, because absent minded, easily produce defuelling, false tripping propellant gas equipment control switch, suction booster again can defuellings, know from experience and blast when secondary air enters products pot.
The model utility content
Technical problem to be solved in the utility model provides a kind of charger, it has by install air flow control device additional between metering cylinder and pneumatic head, the opening gas circuit of air flow control device, close the trigger condition of gas circuit, according to being arranged by the gas dosing of stipulating in the formula for a product in the can body, thereby utilize air flow control device that the gas dosing in the metering cylinder body is controlled accurately, so that the tolerance in the metering cylinder body is just opened the gas circuit that metering cylinder leads to pneumatic head when reaching the tolerance force value of air flow control device regulation, so that pneumatic head work, the gas dosing of stipulating in the formula for a product is filled with by in the can body, thereby guarantees the accurate characteristics of aeration quantity.
For solving the problems of the technologies described above, the utility model provides a kind of charger, comprising: metering cylinder, pneumatic head, and described metering cylinder is connected with described pneumatic head; It is characterized in that, also comprise: air flow control device;
Described air flow control device is arranged between metering cylinder and the pneumatic head, the trigger condition of air flow control device opening gas circuit is that tolerance pressure equals the tolerance force value that required by product-filled prescription in the metering cylinder, and the trigger condition that air flow control device is closed gas circuit is that tolerance pressure equals zero in the metering cylinder.
Above-mentioned base case is carried out preferred technological scheme is, described air flow control device is pneumatic servovalve.
It is also to comprise that such scheme is carried out improved technological scheme: single electric control reversing valve, suction booster, charger gas circuit control switch;
Described suction booster is connected with described metering cylinder, and suction booster also is connected with the source of the gas supply equipment by described charger gas circuit control switch;
Described single electric control reversing valve be arranged at described pneumatic head below by product-filled aerating position place, single electric control reversing valve and described charger gas circuit control switch are series between described source of the gas supply equipment and the suction booster, and the unlocking condition of single electric control reversing valve is that pressure is less than inflated complete after-applied pressure to single electric control reversing valve by the can body.
The technological scheme that is more preferably is that described charger gas circuit control switch is pedal gas circuit control switch.
The beneficial effects of the utility model are:
1. the utility model can guarantee to be filled with in the can body tolerance of capacity.Propellant gas equipment provided by the utility model by install air flow control device additional between metering cylinder and pneumatic head, according to the gas dosing of stipulating in the formula for a product, is set air flow control device opening gas circuit and the tolerance pressure of closing gas circuit.Under the normality, the gas circuit that air flow control device will measure between cylinder body and the pneumatic head is controlled to be closed condition.During gas-filling, operator open the control switch of propellant gas equipment, the suction booster that makes propellant gas equipment is inflated in the metering cylinder body when tolerance reaches the cracking pressure of air flow control device regulation in the metering cylinder body, and air flow control device is opened the pipeline that is connected between metering cylinder body and the pneumatic head to being inflated by the can body.After the tolerance of regulation is filled with by the can body fully, gas pressure in the metering cylinder is zero, equated ground pressure in the former metering cylinder by product-filled gas pressure, this moment, air flow control device was converted to the gas circuit state of closing, thereby so that the tolerance in the metering cylinder all is filled with by in the can body, assurance enters into by the gas flow of can body and reaches the gas dosing that formula for a product is stipulated, thereby the inaccurate problem of the tolerance that is filled with by the can body in the solution prior art guarantees that quality of product 100% is qualified.
2. the utility model can prevent that control switch by charger from being bumped to cause by the can body by mistake and be filled with the danger that excess air is blasted.Its effect implementation is: below by the can body a single electric control reversing valve is set, the gas circuit control switch of this list electric control reversing valve and charger is connected on the supply air line of suction booster, when not removed by the can body, the weight by the can body after inflation is pushed down single electric control reversing valve, the control switch of charger can't be opened, thereby can not produce defuelling, having guaranteed can be not too much because of gas by the can body, the danger of blasting.
The utility model is monitored tolerance in the metering cylinder by increasing control gear, so that the degree of accuracy of aeration quantity is improved, saved the step of using pharmacist balance control gas loading in the prior art, and establish single electric control reversing valve by the aerating position place by product-filled below pneumatic head, and the control switch of single electric control reversing valve and charger gas circuit is connected on the supply air line of suction booster, thereby effectively prevented from because of the control switch of false tripping charger being caused the danger of being blasted by the can body so that be filled with too much gas in the can body.The utility model is simple in structure, is easy to realize that using effect is good, is suitable for applying.
Description of drawings
Fig. 1 is the utility model embodiment's structural representation.
Wherein, the second pipeline that the first pipeline that the 1-metering cylinder is connected with suction booster, 2-metering cylinder are connected with pneumatic head, the single electric control reversing valve of 3-, 4-worktable.
Embodiment
For the further the utility model of setting forth is to reach technological means and the effect that predetermined model utility purpose is taked, below in conjunction with accompanying drawing and preferred embodiment, embodiment and working principle according to the charger that the utility model proposes are elaborated.
As shown in Figure 1, the propellant gas equipment that the utility model embodiment provides comprises: suction booster, metering cylinder, pneumatic head, charger gas circuit control switch and air flow control device.Wherein, suction booster and metering cylinder, pneumatic head are linked in sequence, suction booster also is connected with the source of the gas supply equipment by the charger gas path control valve, the first pipeline 1 that is connected between suction booster and the metering cylinder is the supply air line of metering cylinder, the second pipeline 2 that is connected between metering cylinder and the pneumatic head is outlet pipes of metering cylinder, and air flow control device is arranged on the second pipeline 2 between metering cylinder and the pneumatic head.The trigger condition of air flow control device opening gas circuit is set to tolerance pressure in the metering cylinder and equals the tolerance force value that required by product-filled prescription, and the trigger condition that air flow control device is closed gas circuit is set to that tolerance pressure equals zero in the metering cylinder.
What adopt in the present embodiment is that pneumatic servovalve is used as air flow control device, operator can observe by the pressure gauge on the pneumatic servovalve variation of tolerance in the metering cylinder, and what the gas circuit control switch of charger adopted is the gas circuit control switch of pedal.Charger is the formula for a product regulation to be filled with 50～100 products that restrain gas dosings carry out can in the present embodiment.
The utility model embodiment's working principle is: under the normality, pneumatic servovalve is connected the second pipeline 2 with metering cylinder and is controlled to be closed condition with pneumatic head.During gas-filling, operator jam on the gas circuit control switch of propellant gas equipment, the suction booster of charger is inflated in metering cylinder by the first pipeline 1, at this moment, pneumatic servovalve has been closed the connecting pipeline between metering cylinder and the pneumatic head, if the tolerance in the metering cylinder does not also reach the pressure of the opening gas circuit of pneumatic servovalve setting, operator continue to press the gas circuit control switch of propellant gas equipment, and the source of the gas supply equipment can make suction booster continue metering cylinder is inflated; When tolerance in the metering cylinder has arrived the pressure of the opening gas circuit that pneumatic servovalve sets, pneumatic servovalve is controlled the second pipeline 2 and is opening state, to being inflated by product-filled, so that the gas pressure in the metering cylinder descends, until the gas pressure in the metering cylinder is zero, equated by the front pressure that measures in the cylinder body of gas pressure in the can body and inflation, gas pressure in the metering cylinder is zero at this moment, so that pneumatic servovalve is reduced to closed condition with the second pipeline 2, thereby guaranteeing to enter into by the gas flow of can body reaches the gas content that formula for a product is stipulated, guarantees that product charge-air mass 100% is qualified.
The utility model can also prevent that control switch by charger from being bumped to cause by the can body by mistake and is filled with the danger that excess air is blasted by setting up single electric control reversing valve, embodiment is: on worktable, the aerating position place by product-filled of pneumatic head below arranges a single electric control reversing valve, the gas circuit control switch of single electric control reversing valve and charger is series on the supply air line between source of the gas supply equipment and the suction booster, and the unlocking condition of single electric control reversing valve is that pressure is less than inflated complete after-applied pressure to single electric control reversing valve by the can body.Its working principle is: the control switch of single electric control reversing valve and charger is connected on the supply air line of suction booster, when not removed by the can body, the weight by the can body after inflation is pushed down single electric control reversing valve, so that single electric control reversing valve is in closed condition, thereby so that the control switch of charger can't be opened, just can not produce defuelling, having guaranteed can be not too much because of gas by the can body, the danger of blasting yet.
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to example the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (5)
1. charger comprises: metering cylinder, pneumatic head, and described metering cylinder is connected with described pneumatic head; It is characterized in that, also comprise: air flow control device;
Described air flow control device is arranged between metering cylinder and the pneumatic head, the trigger condition of air flow control device opening gas circuit is that tolerance pressure equals the tolerance force value that required by product-filled prescription in the metering cylinder, and the trigger condition that air flow control device is closed gas circuit is that tolerance pressure equals zero in the metering cylinder.
2. charger as claimed in claim 1 is characterized in that, described air flow control device is pneumatic servovalve.
3. charger as claimed in claim 1 or 2 is characterized in that, also comprises: single electric control reversing valve, suction booster, promotion gas apparatus gas circuit control switch;
Described suction booster is connected with described metering cylinder, and suction booster also is connected with the source of the gas supply equipment by described promotion gas apparatus gas circuit control switch;
Described single electric control reversing valve be arranged at described pneumatic head below by product-filled aerating position place, single electric control reversing valve and described charger gas circuit control switch are series between described source of the gas supply equipment and the suction booster, and the unlocking condition of single electric control reversing valve is that pressure is less than inflated complete after-applied pressure to single electric control reversing valve by the can body.
4. charger as claimed in claim 1 or 2 is characterized in that, described charger gas circuit control switch is pedal gas circuit control switch.
5. charger as claimed in claim 3 is characterized in that, described charger gas circuit control switch is pedal gas circuit control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320219836 CN203248344U (en) | 2013-04-26 | 2013-04-26 | Inflatable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320219836 CN203248344U (en) | 2013-04-26 | 2013-04-26 | Inflatable device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248344U true CN203248344U (en) | 2013-10-23 |
Family
ID=49374786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320219836 Expired - Lifetime CN203248344U (en) | 2013-04-26 | 2013-04-26 | Inflatable device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248344U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179928A (en) * | 2015-09-25 | 2015-12-23 | 芜湖宏强船舶设备有限公司 | Oxygen filling device |
| CN109592623A (en) * | 2019-02-02 | 2019-04-09 | 长沙康欧创新科技有限公司 | A kind of liquid-filling machine |
-
2013
- 2013-04-26 CN CN 201320219836 patent/CN203248344U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179928A (en) * | 2015-09-25 | 2015-12-23 | 芜湖宏强船舶设备有限公司 | Oxygen filling device |
| CN105179928B (en) * | 2015-09-25 | 2018-05-18 | 芜湖宏强船舶设备有限公司 | Oxygen filling device |
| CN109592623A (en) * | 2019-02-02 | 2019-04-09 | 长沙康欧创新科技有限公司 | A kind of liquid-filling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131023 |
|
| CX01 | Expiry of patent term |