CN102582986B - Powder can and safety valve thereof - Google Patents
Powder can and safety valve thereof Download PDFInfo
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- CN102582986B CN102582986B CN201210066856.XA CN201210066856A CN102582986B CN 102582986 B CN102582986 B CN 102582986B CN 201210066856 A CN201210066856 A CN 201210066856A CN 102582986 B CN102582986 B CN 102582986B
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- top cover
- base
- safety valve
- powder tank
- powder
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Abstract
The invention discloses a powder can and a safety valve of the powder can. The safety valve comprises a base and a top cover, the base and the top cover have a barrel-shaped structure sheathed with each other, the top cover relative to the base can telescopic movement, an opening is arranged along the wall of the base and/or the top cover, when the top cover relative to the base is retracted, the opening is closed, and when the top cover relative to the base is protruded, the opening is opened and the gas in the tank is released. According to the invention, the telescopic movement of the top cover relative to the base can have effects of exhausting gas, reducing pressure and sealing tank body. The powder can of the invention has the advantages of high reliability, high exhaust efficiency, adjustable opening pressure and the like.
Description
Technical field
The present invention relates generally to engineering machinery field, particularly a kind of powder tank safety valve, and the powder tank that comprises this powder tank safety valve.
Background technology
Powder tank is the important device that in concrete mixing plant or other building yards, powder stores, for storing the granular materials such as cement, admixture, dry type powder additive.Powder tank is also the reservoir vessel of grain storage and other granular articles.Because current powder adopts pneumatic conveying mode mostly, mass transport to tank body is stored, the situation that often there will be tank body internal gas pressure to increase, so Quick air-discharge step-down is most important to the safety effect of powder tank, safety valve is one of essential element.
Shown in Fig. 1, be a kind of conventional safety valve in prior art, this safety valve comprises support 1 ', top cover 2 ', T shape bar 3 ' and jam nut 4 '.Top cover 2 ' adopts conical by its shape guiding, and when tank internal gas pressure is greater than the response pressure of safety valve, top cover 2 ' moves up together with T shape bar 3 ', and T shape bar 3 ' carries out spacing.
Support 1 ' and the top tank of said structure are to adopt weld connection, and T shape bar 3 ' and jam nut 4 ' are suspended in top cover below, after bolt looseness, have no idea to tighten, long-term use can cause T shape bar 3 ' and jam nut 4 ' to fall into tank body, damage conveyor screw, affect the normal operation of powder tank.
In addition, when safety valve is opened, top cover 2 ' lower cone has partly been blocked outlet, has affected exhaust efficiency, so that tank body can not Quick air-discharge step-down; And top cover 2 ' adopts fixed weight, so the response pressure of safety valve is definite value, has the defect that response pressure cannot regulate.
Summary of the invention
The present invention aims to provide a kind of powder tank safety valve, and this safety valve has been avoided the use of mounting structure, and parts can not called in tank body because of loosening, have effectively improved the working stability of powder tank.In addition, the present invention can also improve exhaust efficiency.
Powder tank safety valve of the present invention, comprises base and top cover, wherein:
Described top cover and base are the tubular structure of mutual sheathing, and described top cover, with respect to described base Telescopic movable, is provided with opening on the perisporium of described base and/or top cover, and when top cover is retracted with respect to base, described opening is closed; When top cover stretches out with respect to base, described opening is opened and the interior gas of toilet-cleaning jar.
Further, also comprise:
Installation shaft, described installation shaft is horizontally installed on described base, on the perisporium of described top cover, offers slotted hole, and the length direction of described slotted hole is setting up and down, and described slotted hole is stretched in the end of described installation shaft.
Further, also comprise:
Jump ring and sleeve, described jump ring is arranged at the end of described installation shaft, and described sleeve set is in described installation shaft and be arranged in described slotted hole, and described jump ring is for limiting moving axially of described sleeve.
Further, also comprise:
Weight member, described weight member is arranged on described top cover, for top cover being applied to downward pressure.
Further, the periphery of described top cover lower end is provided with the first horizontal platform, on described the first platform, column is installed, and on described weight member, offers mounting hole, and described weight member is sleeved on described column by mounting hole.
Further, also comprise tightening screw, described tightening screw is horizontally disposed with, and penetrates weight member and weight member is fixed on described column.
Further, also comprise:
The first elastomeric element, one end of described the first elastomeric element is arranged on described top cover, for top cover being applied to downward pressure; Or
The second elastomeric element, described the second elastomeric element is arranged between described top cover and base, for top cover being applied to downward pulling force.
Another aspect of the present invention, also provides a kind of powder tank, and this powder tank comprises tank body, and comprises aforesaid powder tank safety valve, and described base is arranged on described tank body.
Further, the periphery of described base lower end is provided with the second horizontal platform, on described the second platform, is provided with bolt hole, and bolt is fixedly connected with tank body by described bolt hole and by base.
Further, also comprise seal ring, described seal ring is arranged on described the second platform, for when top cover is retracted with respect to base, and top pressure closure and base.
The present invention relies on top cover with respect to the telescopic moving of base, can play the effect of exhaust step-down and tank body sealing.Compared with prior art, the present invention does not form the structure that suspends of prior art on the whole, and its simple and stable structure has advantages of that reliability is high; In addition, exhaust pathway of the present invention is unobstructed, there will not be top cover lower cone in prior art to block the defect of outlet, and its exhaust efficiency is high, can realize Quick air-discharge step-down; And, can adjust the response pressure that safety valve upwardly opens, have advantages of that response pressure is adjustable, go for the powder tank of plurality of specifications and type.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the powder tank safety valve of prior art;
Fig. 2 is the block diagram of the powder tank safety valve of one embodiment of the invention;
Fig. 3 is the cutaway view of powder tank safety valve embodiment illustrated in fig. 2;
Fig. 4 is the left view of powder tank safety valve embodiment illustrated in fig. 2.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Shown in Fig. 2-4, be the structural representation of the powder tank safety valve of one embodiment of the invention, this powder tank at least comprises base 1 and top cover 2.The tubular structure that top cover 2 of the present invention and base 1 are mutual sheathing, top cover 2, with respect to base 1 Telescopic movable, is provided with opening 20 on the perisporium of base 1 and/or top cover 2, and when top cover 2 is retracted with respect to base 1, opening 20 is closed; When top cover 2 stretches out with respect to base 1, opening 20 is opened and the interior gas of toilet-cleaning jar.
Wherein, base 1 need to be communicated with tank body 3, and the upper end of top cover 2 can be sealed by cover plate 22 parts such as grade as shown in Figure 3, when top cover 2 retracted mode, between the perisporium of cover plate 22, base 1 and top cover 2, jointly forms seal cavity with tank body 3.The present invention can be the outside that base 1 is enclosed within top cover 2, can be also that the top cover 2 shown in Fig. 2 is set in base 1 outside, and the present invention is not limited to this, and base 1 and top cover 2 can be the multiple tubular structures such as cylinder, square tube.
Should be understood that, the present invention can only arrange opening 20 on one of base 1 and top cover 2, also can on base 1 and top cover 2, opening 20 be all set.As long as when top cover 2 is retracted, the region that top cover 2 and base 1 coincide, opening 20 staggers mutually, and the opening on parts is covered and closes by the perisporium of another parts, can realize technique effect of the present invention.Preferably, as shown in Figure 2 and Figure 4, only on the perisporium of top cover 2, be provided with opening 20, opening 20 is relatively set with two groups.
When air pressure in tank increases, gas can be by top cover 2 jack-up upwards, and now opening 20 is not subject to stopping of perisporium, therefore between top cover 2 and base 1, forms outlet, and gas is now from this outlet slime flux, thereby can play the effect of step-down exhaust.In addition, when tank internal gas pressure is larger, top cover 2 must be higher by jack-up, and the aperture that opening 20 is opened is larger, and exhaust is faster.
On the basis of technique scheme, the present invention does not form the structure that suspends of prior art on the whole, can not produce the defect of falling into tank body damage conveyor screw because of superstructure loosening, its simple and stable structure, have advantages of that reliability is high, guaranteed the long normal operation of powder tank.
Should be understood that, the telescopic moving of top cover 2 of the present invention on base 1 can be limited, and the present invention correspondingly also comprises installation shaft 4, installation shaft 4 is horizontally installed on base 1, on the perisporium of top cover 2, offer slotted hole 21, the length direction of slotted hole 21 is setting up and down, and slotted hole 21 is stretched in the end of installation shaft 4.The up-and-down boundary of slotted hole 21 can play the effect that limits top cover 2 flexible strokes, and when the border that top cover 2 moves to slotted hole 21 approaches installation shaft 4, it is spacing that it is subject to stopping of installation shaft 4, can not continue mobile.
For the effect of playing guiding and reducing to rub, the present invention also comprises jump ring 5 and sleeve 6, and jump ring 5 is arranged at the end of installation shaft 4, and sleeve 6 is set in installation shaft 4 and is arranged in slotted hole 21, and jump ring 5 is for limiting moving axially of sleeve 6.In installation process, first installation shaft 4 is placed on base 1, then sleeve 6 is sleeved in installation shaft 4, finally snap in jump ring 5.Should be understood that, jump ring 5 and sleeve 6 can only be arranged at one end of installation shaft 4, preferably at the two ends of installation shaft 4, are symmetrical arranged.
Further, for the response pressure of regulation safety valve, to adapt to different use occasions, meet the requirement of different powder tank types and specification, the present invention also comprises weight member 7.Weight member 7 is arranged on top cover 2, for top cover 2 is applied to downward pressure.This weight member 7 can be arranged at the upper end of top cover 2, as is arranged on cover plate 22, also can be arranged on other multiple possible position.
Preferably, the periphery of the present invention in top cover 2 lower ends is provided with the first horizontal platform 2a, on the first platform 2a, column 8 is installed, and on weight member 7, offers mounting hole, and weight member 7 is sleeved on column 8 by mounting hole.For regulating weight, on this column 8, can be set with one or more modular weight members 7.For fastening weight member 7, the present invention can also comprise tightening screw 9, and tightening screw 9 is horizontally disposed with, and penetrates weight member 7 and weight member 7 is fixed on column 8.
As another kind of embodiment, the present invention can also adopt the response pressure of elastomeric element or lever part regulation safety valve.For elastomeric element, can alternatively adopt the first elastomeric element or the second elastomeric element.Wherein, one end of the first elastomeric element is arranged on described top cover 2, and for top cover 2 is applied to downward pressure, the first elastomeric element can be stage clip, and its second end can be arranged on a fixed parts; The second elastomeric element is arranged between top cover 2 and base 1, and for top cover 2 is applied to downward pulling force, the second elastomeric element can be extension spring.In tank internal pressure hour, the elastic force of each elastomeric element can so that top cover 2 retract; And air pressure in tank is when increase, gas can be by top cover 2 jack-up upwards.The adjustment of response pressure can be controlled by the elastic force of adjustable elastic parts.
As another embodiment, the present invention can comprise lever part.This lever part is provided with fulcrum, and the first side leverage of this fulcrum, on top cover 2, can apply power upwards to the second side lever by weight member, elastomeric element etc., and correspondingly the first side applies downward power to top cover 2, thereby top cover 2 is retracted.The power size that can apply top cover 2 by adjusting the first side lever, and then the response pressure of change safety valve.
Except aforementioned powder tank safety valve, the present invention also provides a kind of powder tank that comprises aforementioned safety valve.Other structure of this powder tank is with reference to prior art, and the present invention does not repeat them here.Preferably this powder tank is the equipment using in concrete mixing plant.
Aforementioned base 1 is arranged on the tank body 3 of powder tank, and it can be arranged at the Cang Ding of tank body 3, also can be arranged at other position, and the present invention is not limited to this.Base 1 can be arranged on tank body 3 by modes such as welding, be spirally connected, be integrally formed, preferably, the periphery of base 1 lower end is provided with the second horizontal platform 1a, on the second platform 1a, is provided with bolt hole, and bolt passing through bolt hole is also fixedly connected with base 1 with tank body 3.
In addition, for when top cover 2 is retracted, avoid pollution and the impact of external environment on tank body 3 interior powders, the present invention is also provided with seal ring 10 as shown in Figures 2 and 3 on the second platform 1a, when top cover 2 is retracted with respect to base 1, seal ring 10 top pressure closures 2 and base 1.
In sum, the present invention relies on top cover 2 with respect to the telescopic moving of base 1, can play the effect of exhaust step-down and tank body sealing.Compared with prior art, the present invention has the following advantages:
1) reliability is high
The tubular structure that base 1 of the present invention and top cover 2 are mutual sheathing, do not form on the whole the structure that suspends of prior art, can not produce the defect of falling into tank body damage conveyor screw because of superstructure loosening, its simple and stable structure, have advantages of that reliability is high, guaranteed the long normal operation of powder tank.
2) exhaust efficiency is high
When the present invention opens at top cover 2, in tank, gas carries out exhaust by the opening 20 arranging on top cover 2 or base 1, and its exhaust pathway is unobstructed, there will not be top cover lower cone in prior art to block the defect of outlet, its exhaust efficiency is high, can realize Quick air-discharge step-down.
3) response pressure is adjustable
The present invention can apply downward pressure to top cover 2 by weight member 7, also can to top cover 2, apply downward pressure or pulling force by elastomeric element, can also to top cover 2, apply downward power by lever part, by adjusting the size of each power, can adjust the response pressure that safety valve upwardly opens, have advantages of that response pressure is adjustable, go for the powder tank of plurality of specifications and type.
Therefore, the invention has the beneficial effects as follows apparent.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a powder tank safety valve, comprises base (1), top cover (2), installation shaft (4), jump ring (5) and sleeve (6), it is characterized in that:
The tubular structure that described top cover (2) and base (1) are mutual sheathing, described top cover (2) is with respect to described base (1) Telescopic movable, on the perisporium of described top cover (2), be provided with opening (20), when top cover (2) is retracted with respect to base (1), described opening (20) is closed; When top cover (2) stretches out with respect to base (1), described opening (20) is opened and the interior gas of toilet-cleaning jar;
Described installation shaft (4) is horizontally installed on described base (1), on the perisporium of described top cover (2), offer slotted hole (21), the length direction of described slotted hole (21) is setting up and down, described slotted hole (21) is stretched in the end of described installation shaft (4), and described slotted hole (21) is placed on described top cover (2) with described opening (20) Independent;
Described jump ring (5) is arranged at the end of described installation shaft (4), described sleeve (6) is set in described installation shaft (4) and goes up and be arranged in described slotted hole (21), and described jump ring (5) is for limiting moving axially of described sleeve (6).
2. powder tank safety valve according to claim 1, is characterized in that, also comprises:
Weight member (7), it is upper that described weight member (7) is arranged at described top cover (2), for top cover (2) is applied to downward pressure.
3. powder tank safety valve according to claim 2, it is characterized in that, the periphery of described top cover (2) lower end is provided with horizontal the first platform (2a), column (8) is installed on described the first platform (2a), described weight member offers mounting hole on (7), and described weight member (7) is sleeved on described column (8) by mounting hole.
4. powder tank safety valve according to claim 3, it is characterized in that, also comprise tightening screw (9), described tightening screw (9) is horizontally disposed with, and penetrates weight member (7) and weight member (7) is fixed on described column (8).
5. powder tank safety valve according to claim 1, is characterized in that, also comprises:
The first elastomeric element, it is upper that one end of described the first elastomeric element is arranged at described top cover (2), for top cover (2) is applied to downward pressure; Or
The second elastomeric element, described the second elastomeric element is arranged between described top cover (2) and base (1), for top cover (2) is applied to downward pulling force.
6. a powder tank, comprises tank body (3), it is characterized in that, also comprises the powder tank safety valve described in claim 3 or 4, and described base (1) is arranged on described tank body (3).
7. powder tank according to claim 6, it is characterized in that, the periphery of described base (1) lower end is provided with horizontal the second platform (1a), on described the second platform (1a), be provided with bolt hole, bolt passes described bolt hole and base (1) is fixedly connected with tank body (3).
8. powder tank according to claim 7, it is characterized in that, also comprise seal ring (10), described seal ring (10) is arranged on described the second platform (1a), for when top cover (2) is retracted with respect to base (1), top pressure closure (2) and base (1).
9. a powder tank, comprises tank body (3), it is characterized in that, also comprises the powder tank safety valve described in claim 1,2 or 5, and described base (1) is arranged on described tank body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210066856.XA CN102582986B (en) | 2012-03-14 | 2012-03-14 | Powder can and safety valve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210066856.XA CN102582986B (en) | 2012-03-14 | 2012-03-14 | Powder can and safety valve thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102582986A CN102582986A (en) | 2012-07-18 |
| CN102582986B true CN102582986B (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210066856.XA Active CN102582986B (en) | 2012-03-14 | 2012-03-14 | Powder can and safety valve thereof |
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| CN (1) | CN102582986B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103537212A (en) * | 2013-10-25 | 2014-01-29 | 浙江森力机械科技有限公司 | Pressure-retaining vacuum emulsifying machine |
| CN103625802B (en) * | 2013-12-09 | 2017-01-04 | 三一汽车制造有限公司 | A kind of powder pressure tank safety device and powder tank and mixing plant |
| TWI645119B (en) * | 2014-08-25 | 2018-12-21 | 雃博股份有限公司 | Gas connecting device and gas exporting method thereof |
| CN113060426B (en) * | 2020-06-30 | 2022-03-18 | 山东梁山通亚汽车制造有限公司 | Powder tank truck |
| CN113353476B (en) * | 2021-06-09 | 2022-04-15 | 中车太原机车车辆有限公司 | Air supplement and exhaust device and container suitable for powder tank container |
| CN114803187A (en) * | 2022-05-31 | 2022-07-29 | 湖南福尔程环保科技有限公司 | A storage device for production of heavy metal chelator |
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|---|---|
| CN102582986A (en) | 2012-07-18 |
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