CN102582986A - Powder can and safety valve thereof - Google Patents
Powder can and safety valve thereof Download PDFInfo
- Publication number
- CN102582986A CN102582986A CN201210066856XA CN201210066856A CN102582986A CN 102582986 A CN102582986 A CN 102582986A CN 201210066856X A CN201210066856X A CN 201210066856XA CN 201210066856 A CN201210066856 A CN 201210066856A CN 102582986 A CN102582986 A CN 102582986A
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- top cover
- base
- safety valve
- powder jar
- weight member
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- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
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 jar safety valve, and the powder jar that comprises this powder jar safety valve.
Background technology
The powder jar is the important device that powder stores in concrete mixing plant or other building yards, is used to store granular materials such as cement, admixture, dry type powder additive.The powder jar also is the reservoir vessel of grain storage and other granular articles.Because powder adopts pneumatic conveying mode mostly at present, store mass transport to tank body, the situation that the tank body internal gas pressure increases appears through regular meeting, and therefore the exhaust step-down is most important to the safety effect of powder jar fast, and safety valve is one of essential element.
Shown in Figure 1 is a kind of safety valve commonly used in the prior art, and this safety valve comprises support 1 ', top cover 2 ', T shape bar 3 ' and jam nut 4 '.Top cover 2 ' adopts the conical by its shape guiding, and when jar internal gas pressure during greater than the response pressure of safety valve, top cover 2 ' moves up with T shape bar 3 ' together, and T shape bar 3 ' carries out spacing.
The support 1 ' of said structure is to adopt welding to connect with the top jar; And T shape bar 3 ' is suspended in the top cover below with jam nut 4 '; Have no idea behind the bolt looseness to tighten; The long-term use meeting causes T shape bar 3 ' and jam nut 4 ' to fall into tank body, damages conveyor screw, influences the normal operation of powder jar.
In addition, when safety valve was opened, top cover 2 ' lower cone had partly been blocked outlet, has influenced exhaust efficiency, so that tank body exhaust step-down fast; And top cover 2 ' adopts fixed weight, so the response pressure of safety valve is definite value, has the defective that response pressure can't be regulated.
Summary of the invention
The present invention aims to provide a kind of powder jar 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 improved the working stability of powder jar effectively.In addition, the present invention can also improve exhaust efficiency.
Powder jar safety valve of the present invention comprises base and top cover, wherein:
Said top cover and base are the tubular structure of mutual sheathing, and said top cover moves with respect to said base is scalable, and the perisporium of said base and/or top cover is provided with opening, and when top cover was withdrawn with respect to base, said opening was closed; When top cover stretched out with respect to base, said opening was opened and the interior gas of toilet-cleaning jar.
Further, also comprise:
Installation shaft, said installation shaft are horizontally installed on the said base, offer slotted hole on the perisporium of said top cover, and the length direction of said slotted hole is provided with up and down, and said slotted hole is stretched in the end of said installation shaft.
Further, also comprise:
Jump ring and sleeve, said jump ring is arranged at the end of said installation shaft, and said sleeve set is on said installation shaft and be arranged in the said slotted hole, and said jump ring is used to limit moving axially of said sleeve.
Further, also comprise:
Weight member, said weight member is arranged on the said top cover, is used for top cover is applied downward pressure.
Further, the periphery of said top cover lower end is provided with the first horizontal platform, on said first platform column is installed, and offers mounting hole on the said weight member, and said weight member is sleeved on the said column through mounting hole.
Further, also comprise tightening screw, said tightening screw is horizontally disposed with, and penetrates weight member and weight member is fixed on the said column.
Further, also comprise:
First elastomeric element, an end of said first elastomeric element is arranged on the said top cover, is used for top cover is applied downward pressure; Perhaps
Second elastomeric element, said second elastomeric element is arranged between said top cover and the base, is used for top cover is applied downward pulling force.
Another aspect of the present invention also provides a kind of powder jar, and this powder jar comprises tank body, and comprises aforesaid powder jar safety valve, and said base is arranged on the said tank body.
Further, the periphery of said base lower end is provided with the second horizontal platform, and said second platform is provided with bolt hole, and bolt is captiveed joint with tank body through said bolt hole and with base.
Further, also comprise seal ring, said seal ring is arranged on said second platform, is used for when top cover is withdrawn with respect to base top pressure closure and base.
The present invention relies on the telescopic moving of top cover with respect to base, promptly can play exhaust step-down and the effect of tank body osed top.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 the high advantage of reliability; In addition, exhaust pathway of the present invention is unobstructed, the top cover lower cone can not occur in the prior art and block the defective of outlet, and its exhaust efficiency is high, can realize quick exhaust step-down; And, can adjust the response pressure that safety valve upwardly opens, have the adjustable advantage of response pressure, go for the powder jar of plurality of specifications and type.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the powder jar safety valve of prior art;
Fig. 2 is the block diagram of the powder jar safety valve of one embodiment of the invention;
Fig. 3 is the cutaway view of powder jar safety valve embodiment illustrated in fig. 2;
Fig. 4 is the left view of powder jar safety valve embodiment illustrated in fig. 2.
The specific embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Be the structural representation of the powder jar safety valve of one embodiment of the invention shown in Fig. 2-4, this powder jar comprises base 1 and top cover 2 at least.Top cover 2 of the present invention is the tubular structure of mutual sheathing with base 1, and top cover 2 is with respect to base 1 scalable moving, and the perisporium of base 1 and/or top cover 2 is provided with opening 20, and when top cover 2 was withdrawn with respect to base 1, opening 20 was closed; When top cover 2 stretched out with respect to base 1, opening 20 was opened and the interior gas of toilet-cleaning jar.
Wherein, base 1 need be communicated with tank body 3, and the upper end of top cover 2 can when top cover 2 retracted modes, form seal cavitys with tank body 3 between the perisporium of cover plate 22, base 1 and top cover 2 jointly by sealing such as cover plate shown in Figure 3 22 parts such as grade.The present invention can be the outside that base 1 is enclosed within top cover 2, also can be that top cover 2 shown in Figure 2 is set in base 1 outside, and the present invention is not limited to this, and base 1 can be multiple tubular structures such as cylinder, square tube with top cover 2.
Should be understood that the present invention can only be provided with opening 20 on one of base 1 and top cover 2, also can on base 1 and top cover 2, opening 20 be set all.As long as when top cover 2 withdrawals, the zone that top cover 2 and base 1 coincide, opening 20 staggers each other, and the opening on the parts is covered by the perisporium of another parts and closes, and promptly can realize technique effect of the present invention.Preferably, like Fig. 2 and shown in Figure 4, only the perisporium of top cover 2 is provided with opening 20, and opening 20 is relatively set with two groups.
When air pressure in jar increased, gas can be with top cover 2 jack-up upwards, and this moment, opening 20 did not receive stopping of perisporium, therefore between top cover 2 and base 1, formed outlet, and gas this moment is from this outlet slime flux, thereby can play the effect of step-down exhaust.In addition, when jar internal gas pressure was big more, top cover 2 must be high more by jack-up, and the aperture that opening 20 is opened is big more, and then exhaust is fast more.
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 defective of falling into tank body damage conveyor screw because of superstructure loosening, its simple and stable structure; Have the high advantage of reliability, guaranteed the long normal operation of powder jar.
Should be understood that the telescopic moving of top cover 2 of the present invention on base 1 can be limited, the present invention correspondingly also comprises installation shaft 4; Installation shaft 4 is horizontally installed on the base 1; Offer slotted hole 21 on the perisporium of top cover 2, the length direction of slotted hole 21 is provided with 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 border that top cover 2 moves to slotted hole 21 during near installation shaft 4, it is spacing that it receives stopping of installation shaft 4, can not continue to move.
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 on the installation shaft 4 and is arranged in the slotted hole 21, and jump ring 5 is used to limit moving axially of sleeve 6.In installation process, earlier installation shaft 4 is placed on the base 1, then sleeve 6 is sleeved on the installation shaft 4, snap in jump ring 5 at last.Should be understood that jump ring 5 and sleeve 6 can only be arranged at an end of installation shaft 4, preferably are symmetrical set at the two ends of installation shaft 4.
Further, in order to regulate the response pressure of safety valve, to adapt to different use occasions, satisfy the requirement of different powder jar types and specification, the present invention also comprises weight member 7.Weight member 7 is arranged on the top cover 2, is used for top cover 2 is applied downward pressure.This weight member 7 can be arranged at the upper end of top cover 2, as is arranged on the 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 offers mounting hole on the weight member 7, and weight member 7 is sleeved on the column 8 through mounting hole.In order to regulate weight, can the one or more modular weight members 7 of suit on this column 8.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 the column 8.
As another kind of embodiment, the present invention can also adopt elastomeric element or lever part to regulate the response pressure of safety valve.For elastomeric element, can select a ground and adopt first elastomeric element or second elastomeric element.Wherein, an end of first elastomeric element is arranged on the said top cover 2, is used for top cover 2 is applied downward pressure, and first elastomeric element can be a stage clip, and its second end can be arranged on the fixed parts; Second elastomeric element is arranged between top cover 2 and the base 1, is used for top cover 2 is applied downward pulling force, and second elastomeric element can be extension spring.In the jar internal pressure hour, the elastic force of each elastomeric element can be so that top cover 2 withdrawals; And the air pressure in jar is when increasing, and gas can be with top cover 2 jack-up upwards.The adjustment of response pressure can be controlled through the elastic force of regulating elastomeric element.
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 can apply power upwards to the second side lever through weight member, elastomeric element etc. on top cover 2, and correspondingly first side then applies downward power to top cover 2, thereby makes top cover 2 withdrawals.Can be big or small to the power that top cover 2 applies through adjusting the first side lever, and then the response pressure of change safety valve.
Except aforementioned powder jar safety valve, the present invention also provides a kind of powder jar that comprises aforementioned safety valve.Other structure of this powder jar is with reference to prior art, and the present invention repeats no more at this.Preferred this powder jar is the equipment that uses in the concrete mixing plant.
In addition; For when top cover 2 is withdrawn, avoid pollution and the influence of external environment to powders in the tank body 3, the present invention also is provided with seal ring 10 as shown in Figures 2 and 3 on the second platform 1a; When top cover 2 is withdrawn with respect to base 1, seal ring 10 top pressure closures 2 and bases 1.
In sum, the present invention relies on the telescopic moving of top cover 2 with respect to base 1, promptly can play exhaust step-down and the effect of tank body osed top.Compared with prior art, the present invention has the following advantages:
1) reliability is high
2) exhaust efficiency is high
When the present invention opens at top cover 2; Gas carries out exhaust through the opening 20 that is provided with on top cover 2 or the base 1 in jar, and its exhaust pathway is unobstructed, the top cover lower cone can not occur in the prior art and block the defective of outlet; Its exhaust efficiency is high, can realize quick exhaust step-down.
3) response pressure is adjustable
The present invention can apply downward pressure for top cover 2 through weight member 7; Also can apply downward pressure or pulling force for top cover 2 through elastomeric element; Can also apply downward power for top cover 2 through lever part,, can adjust the response pressure that safety valve upwardly opens through adjusting the size of each power; Have the adjustable advantage of response pressure, go for the powder jar of plurality of specifications and type.
Therefore, the invention has the beneficial effects as follows conspicuous.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a powder jar safety valve comprises base (1) and top cover (2), it is characterized in that:
Said top cover (2) and base (1) are the tubular structure of mutual sheathing; Said top cover (2) moves with respect to said base (1) is scalable; The perisporium of said base (1) and/or top cover (2) is provided with opening (20), and when top cover (2) was withdrawn with respect to base (1), said opening (20) was closed; When top cover (2) with respect to base (1) when stretching out, said opening (20) be opened and toilet-cleaning jar in gas.
2. powder jar safety valve according to claim 1 is characterized in that, also comprises:
Installation shaft (4), said installation shaft (4) are horizontally installed on the said base (1), offer slotted hole (21) on the perisporium of said top cover (2), and the length direction of said slotted hole (21) is provided with up and down, and said slotted hole (21) is stretched in the end of said installation shaft (4).
3. powder jar safety valve according to claim 2 is characterized in that, also comprises:
Jump ring (5) and sleeve (6), said jump ring (5) is arranged at the end of said installation shaft (4), and said sleeve (6) is set in said installation shaft (4) and goes up and be arranged in the said slotted hole (21), and said jump ring (5) is used to limit moving axially of said sleeve (6).
4. according to each described powder jar safety valve of claim 1-3, it is characterized in that, also comprise:
Weight member (7), said weight member (7) is arranged on the said top cover (2), is used for top cover (2) is applied downward pressure.
5. powder jar safety valve according to claim 4; It is characterized in that; The periphery of said top cover (2) lower end is provided with horizontal first platform (2a); Column (8) is installed on said first platform (2a), and said weight member offers mounting hole on (7), and said weight member (7) is sleeved on the said column (8) through mounting hole.
6. powder jar safety valve according to claim 5 is characterized in that, also comprises tightening screw (9), and said tightening screw (9) is horizontally disposed with, and penetrates weight member (7) and weight member (7) is fixed on the said column (8).
7. according to each described powder jar safety valve of claim 1-3, it is characterized in that, also comprise:
First elastomeric element, an end of said first elastomeric element is arranged on the said top cover (2), is used for top cover (2) is applied downward pressure; Perhaps
Second elastomeric element, said second elastomeric element are arranged between said top cover (2) and the base (1), are used for top cover (2) is applied downward pulling force.
8. a powder jar comprises tank body (3), it is characterized in that, also comprises each described powder jar safety valve of claim 1-7, and said base (1) is arranged on the said tank body (3).
9. powder jar according to claim 8; It is characterized in that; The periphery of said base (1) lower end is provided with horizontal second platform (1a), and said second platform (1a) is provided with bolt hole, and bolt passes said bolt hole and base (1) is captiveed joint with tank body (3).
10. powder jar according to claim 9 is characterized in that, also comprises seal ring (10), and said seal ring (10) is arranged on said second platform (1a), is used for when top cover (2) is withdrawn with respect to base (1) top pressure closure (2) and base (1).
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 true CN102582986A (en) | 2012-07-18 |
| CN102582986B CN102582986B (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210066856.XA Active CN102582986B (en) | 2012-03-14 | 2012-03-14 | Powder can and safety valve thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102582986B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103625802A (en) * | 2013-12-09 | 2014-03-12 | 三一汽车制造有限公司 | Powder tank pressure safety device, 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 |
| CN113060426A (en) * | 2020-06-30 | 2021-07-02 | 山东梁山通亚汽车制造有限公司 | Powder tank truck |
| CN113353476A (en) * | 2021-06-09 | 2021-09-07 | 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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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103625802A (en) * | 2013-12-09 | 2014-03-12 | 三一汽车制造有限公司 | Powder tank pressure safety device, powder tank and mixing plant |
| 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 |
| CN113060426A (en) * | 2020-06-30 | 2021-07-02 | 山东梁山通亚汽车制造有限公司 | Powder tank truck |
| 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 |
| CN113353476A (en) * | 2021-06-09 | 2021-09-07 | 中车太原机车车辆有限公司 | Air supplement and exhaust device and container suitable for powder tank container |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102582986B (en) | 2014-10-15 |
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