CN203997162U - The blowing packing barrel of high leakproofness - Google Patents
The blowing packing barrel of high leakproofness Download PDFInfo
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- CN203997162U CN203997162U CN201420420559.5U CN201420420559U CN203997162U CN 203997162 U CN203997162 U CN 203997162U CN 201420420559 U CN201420420559 U CN 201420420559U CN 203997162 U CN203997162 U CN 203997162U
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- staving
- neck region
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- outlet
- packing barrel
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Abstract
The utility model discloses a kind of blowing packing barrel of high leakproofness, comprise and be provided with the blowing staving of staving outlet and the bung enclosing cover coordinating with staving outlet; Wherein, staving outlet comprises and is positioned at the end face at top and is positioned at end face inside and outside sidewall below, that be connected with end face; The inside and outside sidewall of staving outlet is respectively equipped with interior overlap and outer overlap, and inside and outside overlap position is lower than the end face of staving outlet.Due to the end face of inside and outside overlap position lower than staving outlet, the utility model packing barrel has high leakproofness; The further optimization of the outer side wall structure exporting by staving, essentiality, the reduction mould and die accuracy that also can overcome deburring require, are beneficial to the processing etc. that is shaped.It is more favourable when this packing barrel is suitable for the high-purity liquid electronic chemical of splendid attire solvent, particularly splendid attire; Its high leakproofness can guarantee packing barrel the high purity of canned solvent.
Description
Technical field
The utility model relates to chemical field, be specifically related to a kind of blowing packing barrel of high leakproofness, this packing barrel is applicable to hold the liquid such as solvent, high-purity electronic chemical product particularly, this blowing packing barrel leak tightness is high, can effectively prevent from holding in dissolving agent process impurity and enter in packing barrel and prevent from packing liquid in bucket and leak from staving exit.
Background technology
Existing a lot of packing barrel, as solvent barrel, its staving adopts blow molding more, and the staving wall thickness obtaining is controlled, and convenient formation greatly reduces the productive costs of staving.
For the blowing packing barrel for storing liquid, the leak tightness of its bung enclosing cover and staving outlet is a very important considerations.Liquid for packing SILVER REAGENT, especially high-purity liquid electronic chemical, the high leakproofness of packing barrel is an indispensable index especially, because the leak tightness of packing barrel is except affecting the stability of bale capacity, more can directly or indirectly have influence on the purity of product.
The packing barrel of existing employing blow molding, its overlap is arranged at the junction of the inside and outside sidewall of staving outlet and the end face of staving outlet; The existence of overlap affects the leak tightness of packing barrel.In order to eliminate the impact of overlap on the leak tightness of packing barrel, need to carry out deburring processing to the end face of staving outlet, even also to carry out degree of finish processing.And, even carry out deburring, after deburring, also easily cause the end face unfairness of the staving outlet of packing barrel, limited for the leak tightness improvement of packing barrel, deburring work is many by manually carrying out in addition, also can increase human cost.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defect, and a kind of blowing packing barrel of high leakproofness is provided.
For achieving the above object, technical solution adopted in the utility model is that the blowing packing barrel of the utility model high leakproofness, comprises and be provided with the blowing staving of staving outlet and the bung enclosing cover coordinating with staving outlet; Wherein, staving outlet comprises and is positioned at the end face at top and is positioned at end face inside and outside sidewall below, that be connected with end face; The inside and outside sidewall of staving outlet is respectively equipped with interior overlap and outer overlap, and inside and outside overlap position is lower than the end face of staving outlet.
Compare with the packing barrel of prior art, packing barrel of the present utility model is arranged at the end face lower than staving outlet by overlap, has guaranteed the close contact of the end face of staving outlet and the inner end surface of staving enclosing cover, has avoided existing the impact of overlap on packing barrel leak tightness; Even if deburring, is also that the inside and outside sidewall around staving outlet carries out deburring, thus the planarization after deburring on the end face of staving outlet and the leak tightness between the inner end surface of staving enclosing cover also without excessive impact, reduced the degree of finish requirement of deburring.
For convenient, connect, simultaneously in order to overcome the essentiality of deburring, preferred technical scheme is that described staving is covered with negative thread outward; Staving outlet lateral wall is provided with outside thread, and outside thread is positioned at described outer overlap below; Staving exports with described staving enclosing cover as being threaded; The external diameter maxim of described outer overlap is less than described externally threaded maximum gauge; Both guarantee the close contact of the end face of staving outlet and the inner end surface of staving enclosing cover, guaranteed again the leak tightness of staving enclosing cover and staving outlet lateral wall.
In order to reduce mould and die accuracy requirement, be convenient to control overlap, preferred technical scheme is, the lateral wall of described staving outlet comprises and connects the thin neck region of described staving exit end face and away from the thick neck region of described staving exit end face; The external diameter in described thin neck region is less than the external diameter in described thick neck region; Described outer overlap is located at middle part or the bottom in thin neck region, and described outside thread is located at the lateral wall in described thick neck region.
For simplified structure, preferred technical scheme is that the junction in described thin neck region and described thick neck region forms step surface.Or in order to be beneficial to blow molding, preferred technical scheme is to be provided with the transition region of external diameter gradual change between described thin neck region and described thick neck region.
In order to reduce mould and die accuracy requirement, preferred technical scheme is, the lateral wall of described staving outlet comprises and connects the change neck region of described staving exit end face and away from the thick neck region of described staving exit end face, the maxim that becomes neck region external diameter is no more than thick neck region external diameter, and the maximum outside diameter place that becomes neck region is positioned at middle part or the bottom that becomes neck region, described outer overlap is located at or near the maximum outside diameter place that becomes neck region, described outside thread is located at the lateral wall in described thick neck region.For the ease of the processing that is shaped, further preferred technical scheme is that, along the direction in the described thick neck region of described staving exit end face sensing, the external diameter in described change neck region increases progressively.Or, along described staving exit end face, pointing to the direction in described thick neck region, the external diameter in described change neck region changes from small to big, more from large to small.Further preferred technical scheme is that the lateral wall in described change neck region is the arcuate structure of evagination.
In order to improve leak tightness, preferred technical scheme is that the inside and outside sidewall of the end face of described staving outlet and the outlet of described staving is rounding off.
For the ease of mould manufacture, preferred technical scheme is that described inside and outside overlap correspondence is arranged on the inside and outside sidewall of described staving outlet.
In order further to improve leak tightness, preferred technical scheme is that the lid inner end surface of described staving enclosing cover is fixed with pad; Described pad comprises two-layer corrosion-resistant plastic film and is clipped in the foamed plastic sheet between two-layer corrosion-resistant plastic film.
The utility model advantage and beneficial effect are: the utility model packing barrel is arranged at the end lower than staving outlet by the overlap of staving outlet, have guaranteed the planarization of end face of the staving outlet of packing barrel, thereby have guaranteed the high leakproofness of packing barrel.The outer side wall structure exporting by staving is optimized, also can further improve leak tightness, overcome deburring essentiality, reduce mould and die accuracy and require, be convenient to shape etc.This packing barrel can reduce deburring requirement, even can save trimming process step, and then has reduced human cost.
It is more favourable when this packing barrel is suitable for the high-purity liquid electronic chemical of splendid attire solvent, particularly splendid attire; Its high leakproofness can guarantee packing barrel the high purity of canned solvent.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the blowing packing barrel of the utility model high leakproofness;
Fig. 2 is staving and the bung structural representation after splitting in Fig. 1;
Fig. 3 is the partial enlarged drawing at A place in Fig. 2;
Fig. 4 be Fig. 3 partly cut open schematic diagram;
Fig. 5 is the another kind of structural representation of staving outlet;
Fig. 6 is another structural representation of staving outlet;
Fig. 7 is another structural representation of staving outlet;
Fig. 8 is the cross section structure schematic diagram of pad.
In figure: 1, staving outlet; 2, staving; 3, bung enclosing cover; 4-1, interior overlap; 4-2, outer overlap; 5, pad; 6, handle; 7, reinforced rib; 10, exit end face; 11, outlet madial wall; 12, outlet lateral wall; 13, outside thread; 30, lid inner end surface; 31, negative thread; 51-1,51-2, corrosion-resistant plastic film; 52, foamed plastic sheet; 121, thin neck region; 121 ', become neck region; 122, thick neck region; 123, transition region; 124, step surface.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.
The utility model is a kind of blowing packing barrel of high leakproofness.As shown in Figures 1 to 4, this blowing packing barrel comprises that being provided with staving exports 1 blowing staving 2 and export the 1 bung enclosing cover 3 coordinating with staving.Staving outlet 1 comprises and is positioned at the exit end face 10 at top and is positioned at outlet madial wall 11 exit end face 10 belows, that be connected with exit end face 10 and exports lateral wall 12; Outlet madial wall 11 is provided with interior overlap 4-1, outlet lateral wall 12 is provided with outer overlap 4-2, inside and outside overlap 4-1,4-2 position are lower than exit end face 10, like this, even if deburring, is also to carry out deburring around the inside and outside sidewall 11,12 of outlet, exit end face 10 planeness are not subject to the impact of overlap, exit end face 10 can with the close contact of the lid inner end surface 30 of staving enclosing cover 3, thereby improved the leak tightness of packing barrel.
Staving enclosing cover 3 and staving outlet 1 match, and it can adopt multiple fit system, as long as play the effect of sealed barrel outlet 1.For leak tightness easy to use, that improve staving outlet and staving enclosing cover, as shown in Figure 2, staving enclosing cover 3 can arrange negative thread 31, at outlet lateral wall 12, outside thread 13 is set, staving outlet 1 with the negative thread 31 of staving enclosing cover 3 for being threaded.In this case, outside thread 13 is arranged at place, outer overlap 4-2 below.In order to overcome the essentiality of deburring, the external diameter maxim that outer overlap 4-2 is set is less than the maximum gauge of outside thread 31.The existence of overlap 4-2 neither can affect the close contact of exit end face 10 and lid inner end surface 30 like this, can not affect again the compactness that is threaded of staving enclosing cover 3 and staving outlet 1.
The external diameter maxim that realizes outer overlap 4-2 is less than the maximum gauge of outside thread 31, and common method is to reduce the width of outer overlap 4-2.The width of overlap is limited by technique and mould generally, cannot accomplish unconfined little.As reduced the width of outer overlap 4-2, the mould of the precision of having relatively high expectations in technique.
In order to reduce mould and die accuracy requirement, as shown in Figure 3 and Figure 4, can 121He Cu neck region, thin neck region 122 be set at outlet lateral wall 12, thin neck region 121 connection outlet end faces 10, thick neck region 122 is away from exit end face 10, and the external diameter in thin neck region 121 is less than the external diameter in thick neck region 122; Middle part or the bottom of outer overlap 4-2 being located to thin neck region 121, outside thread 13 is located at the lateral wall in thick neck region 122.Like this, even if the width of outer overlap 4-2 is larger, because outer overlap 4-2 is arranged at thin neck region 121, the external diameter maxim that therefore easily realizes outer overlap 4-2 is less than the maximum gauge of outside thread 31, thereby reduces the requirement to mould and die accuracy.For simplified structure, the junction in 121He Cu neck region, thin neck region 122 can form step surface 124, as shown in Figure 3 and Figure 4.In order to be beneficial to blow molding, also the transition region 123 of external diameter gradual change can be provided with between 121Yu Cu neck region, thin neck region 122, as shown in Figure 5.
In order to reduce mould and die accuracy requirement, can also arrange and become neck region 121 ' and thick neck region 122 at outlet lateral wall 12.Become neck region 121 ' connection outlet end face 10, thick neck region 122 is away from exit end face 10, and the maxim that becomes neck region 121 ' external diameter is no more than the external diameter in thick neck region 122; The maximum outside diameter place that becomes neck region 121 ' is arranged to middle part or the bottom that becomes neck region 121 ', outer overlap 4-2 is located at or near the maximum outside diameter place that becomes neck region 121 ', outside thread 13 is located at the lateral wall in thick neck region 122.Compare with being arranged at thin neck region 121, outer overlap 4-2 is arranged at and becomes neck region 121 ', is more conducive to reduce mould and die accuracy requirement, makes outer overlap 4-2 form in its middle part or bottom.
As shown in Figure 6, point to the direction in thick neck region 122 along exit end face 10, the external diameter that becomes neck region 121 ' increases progressively.Or as shown in Figure 7, point to the direction in thick neck regions 122 along exit end face 10, the external diameter that becomes neck region 121 ' changes from small to big, more from large to small; For the processing that is shaped, the lateral wall that becomes neck region 121 ' is preferably the arcuate structure of evagination.
In order to improve leak tightness, exit end face 10 is rounding off with the inside and outside sidewall 11,12 of outlet.
For the ease of mould manufacture, interior overlap 4-1 be arranged on outlet inside and outside sidewall 11,12 corresponding to outer overlap 4-1.
In order further to improve leak tightness, the lid inner end surface 30 of staving enclosing cover 3 is fixed with pad 5; As shown in Figure 8, pad 5 comprises two-layer corrosion-resistant plastic film 51-1,51-2 and is clipped in the foamed plastic sheet 52 between two-layer corrosion-resistant plastic film 51-1,51-2.Corrosion-resistant plastic film 51-1,51-2 can select poly tetrafluoroethylene, perfluoroalkoxy resin film, modified Teflon film etc.Foamed plastic sheet 52 can be selected the density polyethylene film with high of foaming.This pad has high resiliency, highly corrosion resistant, feature cheaply, for as packing barrel, in particular for the packing barrel of packing solvent, has advantages of high leakproofness, solvent slop not.
In addition, packing barrel also can be provided with handle 6, with easy to use; Staving 1 whole body can also be provided with the reinforced rib 7 of some circles, the resistance to extruding that improves packing barrel.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a blowing packing barrel for high leakproofness, is characterized in that, comprises and is provided with the blowing staving of staving outlet and the bung enclosing cover coordinating with staving outlet; Wherein, staving outlet comprises and is positioned at the end face at top and is positioned at end face inside and outside sidewall below, that be connected with end face; The inside and outside sidewall of staving outlet is respectively equipped with interior overlap and outer overlap, and inside and outside overlap position is lower than the end face of staving outlet.
2. the blowing packing barrel of high leakproofness as claimed in claim 1, is characterized in that, described staving is covered with negative thread outward; Staving outlet lateral wall is provided with outside thread, and outside thread is positioned at described outer overlap below; Staving exports with described staving enclosing cover as being threaded; The external diameter maxim of described outer overlap is less than described externally threaded maximum gauge.
3. the blowing packing barrel of high leakproofness as claimed in claim 2, is characterized in that, the lateral wall of described staving outlet comprises and connects the thin neck region of described staving exit end face and away from the thick neck region of described staving exit end face; The external diameter in described thin neck region is less than the external diameter in described thick neck region; Described outer overlap is located at middle part or the bottom in thin neck region, and described outside thread is located at the lateral wall in described thick neck region.
4. the blowing packing barrel of high leakproofness as claimed in claim 3, is characterized in that, the junction in described thin neck region and described thick neck region forms step surface; Or, between described thin neck region and described thick neck region, be provided with the transition region of external diameter gradual change.
5. the blowing packing barrel of high leakproofness as claimed in claim 2, it is characterized in that, the lateral wall of described staving outlet comprises and connects the change neck region of described staving exit end face and away from the thick neck region of described staving exit end face, the maxim that becomes neck region external diameter is no more than thick neck region external diameter, and the maximum outside diameter place that becomes neck region is positioned at middle part or the bottom that becomes neck region, described outer overlap is located at or near the maximum outside diameter place that becomes neck region, described outside thread is located at the lateral wall in described thick neck region.
6. the blowing packing barrel of high leakproofness as claimed in claim 5, is characterized in that, points to the direction in described thick neck region along described staving exit end face, and the external diameter in described change neck region increases progressively.
7. the blowing packing barrel of high leakproofness as claimed in claim 5, is characterized in that, points to the direction in described thick neck region along described staving exit end face, and the external diameter in described change neck region changes from small to big, more from large to small.
8. the blowing packing barrel of high leakproofness as claimed in claim 7, is characterized in that, the lateral wall in described change neck region is the arcuate structure of evagination.
9. the blowing packing barrel of the high leakproofness as described in claim 1 to 8 any one, is characterized in that, the inside and outside sidewall of the end face of described staving outlet and the outlet of described staving is rounding off; Described inside and outside overlap correspondence is arranged on the inside and outside sidewall of described staving outlet.
10. the blowing packing barrel of high leakproofness as described in claim 1 to 8 any one, is characterized in that, the lid inner end surface of described staving enclosing cover is fixed with pad; Described pad comprises two-layer corrosion-resistant plastic film and is clipped in the foamed plastic sheet between two-layer corrosion-resistant plastic film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420420559.5U CN203997162U (en) | 2014-07-29 | 2014-07-29 | The blowing packing barrel of high leakproofness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420420559.5U CN203997162U (en) | 2014-07-29 | 2014-07-29 | The blowing packing barrel of high leakproofness |
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| Publication Number | Publication Date |
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| CN203997162U true CN203997162U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420420559.5U Active CN203997162U (en) | 2014-07-29 | 2014-07-29 | The blowing packing barrel of high leakproofness |
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| CN (1) | CN203997162U (en) |
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2014
- 2014-07-29 CN CN201420420559.5U patent/CN203997162U/en active Active
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