CN204096282U - Packing barrel gasket seal, containing the bung of sealing pad and packing barrel - Google Patents
Packing barrel gasket seal, containing the bung of sealing pad and packing barrel Download PDFInfo
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- CN204096282U CN204096282U CN201420421112.XU CN201420421112U CN204096282U CN 204096282 U CN204096282 U CN 204096282U CN 201420421112 U CN201420421112 U CN 201420421112U CN 204096282 U CN204096282 U CN 204096282U
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- corrosion
- plastic film
- packing barrel
- resistant plastic
- gasket seal
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Abstract
The utility model discloses a kind of packing barrel gasket seal, bung and packing barrel.The foamed plastic sheet that sealing pad comprises two-layer corrosion-resistant plastic film and is sandwiched between two-layer corrosion-resistant plastic film; And the surface of described foamed plastic sheet directly contacts with the surface of described corrosion-resistant plastic film and is combined with each other.Sealing gasket design corrosion-resistant plastic film and foamed plastic sheet are directly affixed and hot pressing is complex as a whole, without the need to gelatinous layer, can ensure that packing barrel gasket seal has good and lasting elasticity and leak tightness, corrosion-resistant plastic film can not warpage, thus ensure that pad has lasting corrosion stability; And gasket seal both sides are corrosion-resistant plastic film, regardless of pros and cons when being installed in lid bucket, install more convenient.Be equipped with the packing barrel good airproof performance of this lid bucket, when being suitable for the high-purity liquid electronic chemical of splendid attire solvent, particularly splendid attire advantageously; Its high leakproofness can ensure that the filling solvent of packing barrel institute keeps high purity.
Description
Technical field
The utility model relates to chemical field, is specifically related to a kind of packing barrel gasket seal and contains bung and the packing barrel of gasket seal.
Background technology
For the packing barrel for filling liquid, leak tightness is one of most important factor during its quality is considered.In order to realize high leakproofness, need to arrange gasket seal at the inner top surface of bung.In the packing barrel of current chemical reagent, conventional gasket seal is based on the pad of teflon gasket, polyethylene foam pad and rubber coated polytetrafluoroethylene material.These three kinds of gasket seals respectively have merits and faults.
Wherein, teflon gasket is without good elasticity, and cost is high, and its sealing effectiveness is not good.Rubber coated polytetrafluoroethylene material can overcome the elasticity of teflon gasket to a certain extent, improves its sealing effectiveness, but the rubber layer contained by it is heated yielding softening, easy sclerosis lesion elasticity of catching a cold.Polyethylene foam pad corrosion-resistant, can pollute packaging liquid, affect purity, and serious words also can cause the leakage of packing liquid in bucket.
For the liquid electronic chemical that SILVER REAGENT is particularly high-purity, example hydrochloric acid, sulfuric acid, ammoniacal liquor etc., majority has severe corrosive and volatility, and to packing barrel, particularly the leak tightness of its gasket seal and corrosion stability have higher requirement.In addition, repeatedly cleaning so that again filling, therefore can also require that gasket seal still has good elasticity and corrosion stability after prolonged and repeated cleaning after packing barrel unsnatches solvent.And each layer of existing gasket seal is bonding by colloid, there will be that interlayer comes unstuck, surface warp in the process of therefore bung cleaning, make gasket seal lose corrosion stability.In addition, colloid can increase the hardness of pad, and then affects the leak tightness of pad.
Summary of the invention
One of the purpose of this utility model is to overcome above-mentioned defect, provides the packing barrel gasket seal of a kind of high resiliency, good corrosion resistance, long service life, resistance to cleaning.
Two of the purpose of this utility model be to provide a kind of can the bung of sealed barrel, long service life, resistance to cleaning very well.
Three of the purpose of this utility model is the packing barrel providing a kind of high leakproofness, long service life, resistance to cleaning.
For realizing above-mentioned first object, technical solution adopted in the utility model is, packing barrel gasket seal of the present utility model, two-layer corrosion-resistant plastic film and the foamed plastic sheet be sandwiched between two-layer corrosion-resistant plastic film; And the surface of described foamed plastic sheet directly contacts with the surface of described corrosion-resistant plastic film and is combined with each other.
Packing barrel gasket seal corrosion-resistant plastic film of the present utility model and foamed plastic sheet are directly affixed and are complex as a whole, without the need to gelatinous layer, can ensure that packing barrel gasket seal has good and lasting flexibility and leak tightness, combined strength bination is high, and due to without gelatinous layer, therefore can resistance toly repeatedly clean, corrosion-resistant plastic film can not warpage, and then ensure that pad has lasting corrosion stability; And gasket seal both sides are corrosion-resistant plastic film, regardless of pros and cons when being installed in lid bucket.
In order to improve the compound fastness of corrosion-resistant plastic film and foamed plastic sheet, preferred technical scheme is, described corrosion-resistant plastic film is PE modified polytetrafluoroethylene corrosion-resistant plastic film, and described foamed plastic sheet is high density polyethylene (HDPE) foamed plastic sheet.These two kinds are known materials, in Patents file and document, all have disclosure.
In order to improve the corrosion stability of gasket seal entirety, avoid the foamed plastic sheet of pad particularly in pad to the pollution of packing barrel filling liquid, preferred technical scheme is further, the edge of described corrosion-resistant plastic film exceeds described foamed plastic sheet, and the edge exceeded be affixed and hot melt be combined with each other, described foamed plastic sheet is enclosed in the inside between two-layer corrosion-resistant plastic film.Its another advantage is, the marginal portion that two-layer corrosion-resistant plastic film exceeds foamed plastic sheet is combined with each other by hot pressing, because this reducing the requirement of the compatibility of foamed plastic sheet and corrosion-resistant plastic film, expand the range of choices of foamed plastic sheet and corrosion-resistant plastic film.
In order to increase the area of contact of foamed plastic sheet and corrosion-resistant plastic film, improve compound fastness, preferred technical scheme is, described foamed plastic sheet comprises high density polyethylene (HDPE) foaming layer and is located at the high density polyethylene (HDPE) pouring coating layer of high density polyethylene (HDPE) foaming layer both sides.
For the ease of processing, preferred technical scheme is, described corrosion-resistant plastic film and described foamed plastic sheet are circle.
In order to save material, preferred technical scheme can also be, described corrosion-resistant plastic film and described foamed plastic sheet are annular.
Take into account ease of processing and save material, preferred technical scheme can also be, described corrosion-resistant plastic film is circular, and described foamed plastic sheet is annular.
For realizing above-mentioned second object, technical solution adopted in the utility model is, bung of the present utility model, and the inner end surface of bung is provided with above-mentioned gasket seal.
For realizing above-mentioned 3rd object, technical solution adopted in the utility model is, packing barrel of the present utility model, and this packing barrel comprises staving and above-mentioned bung; Described staving is provided with bung, and described bung matches with bung.
The utility model advantage and beneficial effect are: the utility model packing barrel gasket seal design corrosion-resistant plastic film and foamed plastic sheet are directly affixed and hot pressing is complex as a whole, without the need to gelatinous layer, can ensure that packing barrel gasket seal has good and lasting elasticity and leak tightness, corrosion-resistant plastic film can not warpage, thus ensure that pad has lasting corrosion stability; And gasket seal both sides are corrosion-resistant plastic film, regardless of pros and cons when being installed in lid bucket, install more convenient.After optimizing the structure of gasket seal and shape, also have and be convenient to following process manufacture, corrosion stability and the advantage such as improve further.
After sealing pad is fixed on bung, lid bucket can sealed packing pail enduringly, even if repeatedly to clean, temperature traverse, also can keep good corrosion stability, elasticity, long service life.
Be equipped with the packing barrel good airproof performance of this lid bucket, when being suitable for the high-purity liquid electronic chemical of splendid attire solvent, particularly splendid attire advantageously; Its high leakproofness can ensure packing barrel the high purity of filling solvent.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of packing barrel gasket seal in embodiment 1;
Fig. 2 is the perspective view of Fig. 1;
Fig. 3 is the structural representation of bung in embodiment 1;
Fig. 4 is the cross section structure schematic diagram of packing barrel gasket seal in embodiment 2;
Fig. 5 is the cross section structure schematic diagram of packing barrel gasket seal in embodiment 3.
In figure: 1, foamed plastic sheet; 2-1 and 2-2, corrosion-resistant plastic film; 11, foaming layer; 12-1 and 12-2, pouring coating layer.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
Embodiment 1
The utility model is a kind of packing barrel gasket seal, and as depicted in figs. 1 and 2, sealing pad comprises foamed plastic sheet 1 and two-layer corrosion-resistant plastic film, is corrosion-resistant plastic film 2-1,2-2 respectively; Foamed plastic sheet 1 is sandwiched between corrosion-resistant plastic film 2-1,2-2, the surface of corrosion-resistant plastic film 2-1,2-2 directly contacts respectively with the surface of foamed plastic sheet 1, without gelatinous layer ground hot pressing be complex as a whole.Without gelatinous layer between corrosion-resistant plastic film 2-1,2-2 and foamed plastic sheet 1, thus can ensure that packing barrel gasket seal has good and lasting elasticity and leak tightness; And foamed plastic sheet 1 and corrosion-resistant plastic film 2-1,2-2 are combined with each other by hot pressing, combined strength bination is high, and corrosion-resistant plastic film 2-1 can not warpage, ensure that the corrosion stability of pad.When gasket seal is when fixing with bung, gasket seal can positive and negatively use.
Foamed plastic sheet 1 can select high density polyethylene (HDPE) foamed plastic sheet, and corrosion-resistant plastic film 2-1,2-2 can select PE modified polytetrafluoroethylene corrosion-resistant plastic film.The former has good foaming property and some strength, and the latter has good corrosion stability and the good adhesive bonding property with foamed plastic sheet 1.The optional scope of PE modified polytetrafluoroethylene corrosion-resistant plastic film is a lot, modified Teflon-ethylene copolymer etc. disclosed in the di-block copolymer that application number as is known is polyethylene disclosed in the patent of CN 201310468015.6 and polytetrafluoroethylene, the patent of CN201310290818.7.
From the structure of foamed plastic sheet 1, as depicted in figs. 1 and 2, high density polyethylene (HDPE) foamed plastic sheet 1 preferably has sandwich construction, it comprises the foaming layer 11 of high density polyethylene (HDPE) and is located at pouring coating layer 12-1,12-2 of high density polyethylene (HDPE) of high density polyethylene (HDPE) foaming layer 11 both sides, foamed plastic sheet 1 and the area of contact of corrosion-resistant plastic film 2-1 can be increased like this, improve compound fastness.
Consider from angle easy to process, corrosion-resistant plastic film 2-1 and foamed plastic sheet 1 are all chosen as circle, as shown in Figure 2.
The utility model also comprises the bung that a kind of inner end surface is provided with above-mentioned gasket seal, as shown in Figure 3; .
The utility model also comprises a kind of packing barrel containing this bung.This packing barrel comprises staving and above-mentioned bung, and staving is provided with bung, and bung matches with bung, as passed through threaded engagement.
Embodiment 2
Corrosion stability due to foamed plastic sheet 1 is inferior to corrosion-resistant plastic film 2-1, 2-2, in order to the liquid making packing barrel filling is difficult to contact foamed plastic sheet 1, in order to improve the corrosion stability of pad, as improvement, on the basis of embodiment 1, the present embodiment design corrosion-resistant plastic film 2-1, the size of 2-2 is greater than the size of foamed plastic sheet 1, i.e. corrosion-resistant plastic film 2-1, the edge of 2-2 exceeds foamed plastic sheet 1, and the edge exceeded be affixed and hot melt be combined with each other, foamed plastic sheet 1 is enclosed in two-layer corrosion-resistant plastic film 2-1, inside between 2-2, as shown in Figure 4.The filling solvent of such packing barrel cannot enter in foamed plastic sheet 1, further ensure packing barrel the purity of filling solvent.
Embodiment 3
Difference from Example 2 is, in the present embodiment, in order to save material, takes into account ease of processing simultaneously, and design foamed plastic sheet 1 is annular, and corrosion-resistant plastic film 2-1,2-2 are circular, as shown in Figure 5.
Certainly still can design foamed plastic sheet 1 and corrosion-resistant plastic film 2-1,2-2 are circle, or design foamed plastic sheet 1 and corrosion-resistant plastic film 2-1,2-2 are annular.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from 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 (9)
1. a packing barrel gasket seal, is characterized in that, the foamed plastic sheet that sealing pad comprises two-layer corrosion-resistant plastic film and is sandwiched between two-layer corrosion-resistant plastic film; And the surface of described foamed plastic sheet directly contacts with the surface of described corrosion-resistant plastic film and is combined with each other.
2. packing barrel gasket seal as claimed in claim 1, it is characterized in that, described corrosion-resistant plastic film is PE modified polytetrafluoroethylene corrosion-resistant plastic film, and described foamed plastic sheet is high density polyethylene (HDPE) foamed plastic sheet.
3. packing barrel gasket seal as claimed in claim 1, it is characterized in that, the edge of described corrosion-resistant plastic film exceeds described foamed plastic sheet, and the edge exceeded be affixed and hot melt be combined with each other, described foamed plastic sheet is enclosed in the inside between two-layer corrosion-resistant plastic film.
4. packing barrel gasket seal as claimed in claim 1, is characterized in that, described foamed plastic sheet comprises high density polyethylene (HDPE) foaming layer and is located at the high density polyethylene (HDPE) pouring coating layer of high density polyethylene (HDPE) foaming layer both sides.
5. packing barrel gasket seal as claimed in claim 1, it is characterized in that, described corrosion-resistant plastic film and described foamed plastic sheet are circle.
6. packing barrel gasket seal as claimed in claim 1, it is characterized in that, described corrosion-resistant plastic film and described foamed plastic sheet are annular.
7. packing barrel gasket seal as claimed in claim 1, is characterized in that, described corrosion-resistant plastic film is circular, and described foamed plastic sheet is annular.
8. a bung, is characterized in that, the inner end surface of bung is provided with the gasket seal described in claim 1 to 7 any one.
9. a packing barrel, is characterized in that, this packing barrel comprises staving and bung according to claim 8; Described staving is provided with bung, and described bung matches with bung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420421112.XU CN204096282U (en) | 2014-07-29 | 2014-07-29 | Packing barrel gasket seal, containing the bung of sealing pad and packing barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420421112.XU CN204096282U (en) | 2014-07-29 | 2014-07-29 | Packing barrel gasket seal, containing the bung of sealing pad and packing barrel |
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| Publication Number | Publication Date |
|---|---|
| CN204096282U true CN204096282U (en) | 2015-01-14 |
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| CN201420421112.XU Active CN204096282U (en) | 2014-07-29 | 2014-07-29 | Packing barrel gasket seal, containing the bung of sealing pad and packing barrel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106317550A (en) * | 2016-08-12 | 2017-01-11 | 江苏锦厚新材料科技有限公司 | Foam pad and production method thereof |
-
2014
- 2014-07-29 CN CN201420421112.XU patent/CN204096282U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106317550A (en) * | 2016-08-12 | 2017-01-11 | 江苏锦厚新材料科技有限公司 | Foam pad and production method thereof |
| CN106317550B (en) * | 2016-08-12 | 2019-01-18 | 江苏锦厚新材料科技有限公司 | A kind of foam pad and preparation method thereof |
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