US20220119167A1 - Large-caliber, hoop-free and well-sealed plastic barrel - Google Patents
Large-caliber, hoop-free and well-sealed plastic barrel Download PDFInfo
- Publication number
- US20220119167A1 US20220119167A1 US17/561,800 US202117561800A US2022119167A1 US 20220119167 A1 US20220119167 A1 US 20220119167A1 US 202117561800 A US202117561800 A US 202117561800A US 2022119167 A1 US2022119167 A1 US 2022119167A1
- Authority
- US
- United States
- Prior art keywords
- sealing
- side wall
- outer side
- hoop
- ring
- 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.)
- Abandoned
Links
- 239000004033 plastic Substances 0.000 title claims abstract description 26
- 229920003023 plastic Polymers 0.000 title claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 116
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 238000004806 packaging method and process Methods 0.000 description 6
- 239000004677 Nylon Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000009517 secondary packaging Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- B65D43/0268—Removable lids or covers with integral tamper element secured only by friction or gravity before removal of the tamper element on both the inside and the outside of the mouth of the container
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- B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
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- B65D1/12—Cans, casks, barrels, or drums
- B65D1/14—Cans, casks, barrels, or drums characterised by shape
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Definitions
- This application relates to sealing of large-caliber plastic barrels, and more particularly to a large-caliber, hoop-free and well-sealed plastic barrel.
- a liner or a nylon bag may be arranged in the barrel for secondary packaging.
- the items are primarily packaged by the liner or nylon bag, and then subjected to secondary packaging with the plastic barrel, so as to improve the sealing performance and prevent leakage.
- the manufacture process of the hoop-equipped plastic barrel requires a procedure of fastening the hoop, which specifically includes hooping, clamping, and rotational locking of the hoop. Moreover, this operation can only be manually carried out. Therefore, the production of such plastic barrel is time-consuming and labor-intensive, and the locking may be unreliable. In addition, it is difficult to achieve the fully-automated batch production and packaging due to the complicated process. Regarding the secondary packaging method, the arrangement of the liner or nylon bag greatly increases the production cost, and is also not suitable for the large-scale automated production and packaging. Therefore, it is needed to design a large-caliber, hoop-free and well-sealed plastic barrel, which has simple structure, and is suitable for the mass automated packaging.
- An objective of the present disclosure is to provide a large-caliber, hoop-free and well-sealed plastic barrel, which has a simple structure and good sealing performance, and is suitable for the automated mass production and packaging.
- This application provides a hoop-free plastic barrel, comprising:
- a cover configured for sealing the rim portion
- a side edge of the rim portion of the barrel body is provided with a sealing ring; an outer peripheral surface of the sealing ring is a first sealing surface; an outer side of the barrel body is provided with an annular clamp ring; the annular clamp ring is arranged below the sealing ring; the cover is provided with a sealing groove configured for fitting the rim portion; the sealing groove comprises an inner side wall and an outer side wall; wherein the inner side wall of the sealing groove is close to a center of the barrel body, and the outer side wall of the sealing groove is away from the center of the barrel body; an outer side surface of the inner side wall of the sealing groove tightly fit with an inner wall of the rim portion; an inner side surface of the outer side wall of the sealing groove is provided with a second sealing surface in a seal fit with the first sealing surface; an outer peripheral surface of the cover is provided with a hook strip corresponding to the annular clamp ring; and an inner side wall of the hook strip is provided with a flange configured to be clamped with the annular clamp ring.
- the hook strip is connected to a lower end of the outer side wall of the sealing groove; an inner side of a connection between the hook strip and the outer side wall of the sealing groove is provided with a tearing groove.
- the tearing groove largely facilitates a disassembly of the cover after an installation.
- the cover is provided with a cover opening wrench;
- the hook strip is annularly arranged below the outer side wall of the sealing groove; a head end of the hook strip and a tail end of the hook strip are arranged at two sides of the cover opening wrench, respectively; and the head end of the hook strip is provided with a pull strip configured to facilitate tearing away the hook strip.
- the annularly arranged hook strip ensures the fixing reliability of the cover, and the pull strip and the tearing groove help to tear the hook strip, which facilitates the disassembly of the cover.
- a connection between the cover opening wrench and the outer side wall of the sealing groove is provided with the tearing groove.
- the tearing groove helps to lift up and open the cover opening wrench.
- an outer side of the barrel body is provided with the annular retaining ring; and a lower end of the cover opening wrench extends to an upper end surface of the annular retaining ring, effectively avoiding the cover opening wrench being opened accidently and improving the reliability of the barrel body.
- the outer peripheral surface of the sealing ring is vertically provided with the first sealing surface; the inner side surface of the outer side wall of the sealing groove is provided with a protrusion ring; and the protrusion ring is provided with the second sealing surface in a seal fit with the first sealing surface.
- a thickness of an upper edge of the rim portion is larger than a distance between the first sealing surface and the second sealing surface.
- the rim portion and the sealing groove are in an interference fit, which effectively improves the sealing performance of the barrel body.
- the thickness of the upper edge of the rim portion is 0.1-1 mm larger the distance between the first sealing surface and the second sealing surface.
- a lower end surface of the protrusion ring is provided with an inclined surface configured to facilitate an installation of the barrel body.
- the inclined surface help to guide and position during the installation of the rim portion, which facilitates the positioning and packaging of the equipment during the automated production, reducing the requirements on the accuracy of the equipment, and improving the fault tolerance rate of the equipment.
- the sealing groove is in seal fit with the rim portion, which allows the reliable sealing of the barrel body.
- the first sealing surface provided on the sealing ring tightly fit the second sealing surface on the inner side surface of the outer side wall of the sealing groove.
- the lower end surface of the protrusion ring is provided with the inclined surface to guide the installation of the barrel body, and thus the rim portion of the barrel body can be easily installed in the sealing groove, facilitating the automatic production.
- the clamp ring arranged on the outer side of the barrel body is clamped with the corresponding hook strip to fix the cover and avoid an axial movement of the cover after the installation, so as to further ensure the sealing reliability of the barrel body.
- the sealing and fixing of the barrel body and the cover can be completed by one-step pressing, which is simple and easy to operate, such that the mass automatic sealing packaging and production may be easily reached, improving the production efficiency, reducing the labor intensity and shortening the production cycle.
- the tearing groove facilitates the operator to tear the hook strip along the tearing groove, such that the cover has simple disassembly.
- FIG. 1 schematically depicts a cross-sectional structure of a barrel body according to an embodiment of the present disclosure
- FIG. 2 is an enlarged view of part A in FIG. 1 ;
- FIG. 3 schematically depicts a structure of a cover according to an embodiment of the present disclosure
- FIG. 4 is a cross-sectional view of the structure of the cover in FIG. 3 ;
- FIG. 5 is an enlarged view of part B in FIG. 4 ;
- FIG. 6 schematically depicts the barrel body after the cover is installed according to an embodiment of the present disclosure
- FIG. 7 schematically depicts a cross-sectional view of the barrel body in FIG. 6 ;
- FIG. 8 is an enlarged view of part C in FIG. 7 ;
- FIG. 9 schematically depicts the plastic barrel according to an embodiment of the present disclosure after a hook strip is torn.
- a large-caliber, hoop-free and well-sealed plastic barrel which includes a barrel body 1 providing with a rim portion 3 and a cover 2 configured for sealing the rim portion 3 .
- An outer edge of the rim portion 3 of the barrel 1 is integrally provided with a sealing ring 4 .
- An outer peripheral surface of the sealing ring 4 is vertically provided with a first sealing surface 4 . 1 .
- the cover 2 is provided with a sealing groove 5 configured for fitting the rim portion 3 .
- the sealing groove 5 includes an inner side wall 5 . 1 and an outer side wall 5 . 2 .
- the inner side wall 5 includes an inner side wall 5 .
- the sealing groove 5 is close to a center of the barrel body 1 , and the outer side wall 5 . 2 of the sealing groove 5 is away from the center of the barrel body 1 .
- An outer side surface of the inner side wall 5 . 1 of the sealing groove 5 tightly fit with an inner wall of the rim portion 3 .
- An inner side surface of the outer side wall 5 . 2 of the sealing groove 5 is provided with a protrusion ring 5 . 3 .
- the protrusion ring 5 . 3 is provided with a second sealing surface 5 . 4 that is in a seal fit with the first sealing surface 4 . 1 .
- a lower end surface of the protrusion ring 5 . 3 is provided with an inclined surface 5 . 5 configured to allow the barrel body 1 to be conveniently installed.
- An outer side of the barrel body 1 is provided with an annular clamp ring 6 .
- the annular clamp ring 6 is arranged below the sealing ring 4 .
- An outer peripheral surface of the cover 2 is provided with a hook strip 7 corresponding to the annular clamp ring 6 .
- the cover 2 is also provided with a cover opening wrench 10 .
- the hook strip 7 is annularly arranged below the outer side wall 5 . 2 of the sealing groove 5 .
- a head end of the hook strip 7 and a tail end of the hook strip 7 are arranged at two sides of the cover opening wrench 10 , respectively.
- the head end of the hook strip 7 is provided with a pull strip 11 configured to conveniently tear the hook strip 7 .
- An inner side wall of the hook strip 7 is provided with a flange 9 fixedly clamping with the annular clamp ring 6 .
- the hook strip 7 is connected to a lower end of the outer side wall 5 . 2 of the sealing groove 5 .
- a tearing groove 8 is provided on an inner side of a connection between the hook strip 7 and the outer side wall 5 . 2 of the sealing groove 5 .
- An outer side of the barrel body 1 is provided with an annular retaining ring 12 .
- a lower end of the cover opening wrench 10 extends to an upper end surface of the annular retaining ring 12 .
- a connection between the cover opening wrench 10 and the outer side wall 5 . 2 of the sealing groove 5 may be provided with the tearing groove 8 .
- the tearing groove 8 on the cover opening wrench 10 is aligned with the tearing groove 8 on the hook strip 7 .
- the tearing groove 8 allows an operator to conveniently tear off the cover opening wrench 10 , and then allows the operator to conveniently tear the hook strip 7 along the tearing groove 8 through the pull strip 11 .
- the tearing groove 8 has a thickness of 0.3-0.6 mm, and a width of 0.5-0.6 mm.
- a thickness of an upper edge of the rim portion 3 is larger than a distance between the first sealing surface 4 . 1 and the second sealing surface 5 . 4 .
- a difference between the thickness of the upper edge of the rim portion 3 and the distance between the first sealing surface 4 . 1 and the second sealing surface 5 . 4 is 0.1-1 mm; preferably 0.5 mm.
- Raw material of the barrel body 1 and the cover 2 is made of polypropylene (PP), polyethylene (PE) or a modified engineering plastic of PE.
- PP polypropylene
- PE polyethylene
- a shrinkage rate of a product obtained through injection molding of the raw material is less than 1.5% to ensure the sealing performance of the product.
- a process of using the large-caliber, hoop-free and well-sealed plastic barrel is described as follows.
- the cover 2 is pressed on an upper end of the barrel body 1 , that is, the rim portion 3 of the barrel body 1 is installed in the sealing groove 5 .
- the inclined surface 5 . 5 plays a guiding role and facilitates the automated production. Since the thickness of the upper edge of the rim portion 3 is greater than the distance between the first sealing surface 4 . 1 and the second sealing surface 5 . 4 , the outer side surface of the inner side wall 5 .
- the second sealing surface 5 . 4 provided on the protrusion ring 5 . 3 closely fits with the first sealing surface 4 . 1 on the sealing ring 4 to achieve an interference fit.
- a seal fit between the cover 2 and the edge 3 of the barrel body 1 is achieved through the plasticity of the cover 2 , and the sealing reliability of the barrel body 1 is improved through double-sided sealing.
- the annular clamp ring 6 arranged on the outer side surface of the barrel body 1 is clamped with the hook strip 7 .
- the clamp ring 6 is clamped with the flange 9 arranged on the hook strip 7 to fix the cover 2 and avoid an axial movement of the cover 2 after the installation, so as to further ensure the sealing reliability for the barrel body 1 .
- the hook strip 7 is torn along the tearing groove 8 through the pull strip 11 , that is, the clamp ring is separated from the flange 9 to release a clamping state, and the operator can lift up the cover 2 at this time.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Closures For Containers (AREA)
Abstract
Description
- This application claims the benefit of priority from Chinese Patent Application No. 202110623715.2, filed on Jun. 4, 2021. The content of the aforementioned application, including any intervening amendments thereto, is incorporated herein by reference in its entirety.
- This application relates to sealing of large-caliber plastic barrels, and more particularly to a large-caliber, hoop-free and well-sealed plastic barrel.
- Nowadays, high-grade powdered or liquid chemical raw materials (i.e., polytetrafluoroethylene (PTFE)) with moisture-proof and sealing requirements are generally stored in plastic barrels with a hoop. The hoop is used to fix and tighten the barrel lid, so as to improve the sealing performance of the barrel lid. However, such sealing method fails to arrive at the desirable sealing of the plastic barrels. A liner or a nylon bag may be arranged in the barrel for secondary packaging. Specifically, since the ordinary large-caliber plastic barrels have poor sealing performance, the items are primarily packaged by the liner or nylon bag, and then subjected to secondary packaging with the plastic barrel, so as to improve the sealing performance and prevent leakage.
- However, the manufacture process of the hoop-equipped plastic barrel requires a procedure of fastening the hoop, which specifically includes hooping, clamping, and rotational locking of the hoop. Moreover, this operation can only be manually carried out. Therefore, the production of such plastic barrel is time-consuming and labor-intensive, and the locking may be unreliable. In addition, it is difficult to achieve the fully-automated batch production and packaging due to the complicated process. Regarding the secondary packaging method, the arrangement of the liner or nylon bag greatly increases the production cost, and is also not suitable for the large-scale automated production and packaging. Therefore, it is needed to design a large-caliber, hoop-free and well-sealed plastic barrel, which has simple structure, and is suitable for the mass automated packaging.
- An objective of the present disclosure is to provide a large-caliber, hoop-free and well-sealed plastic barrel, which has a simple structure and good sealing performance, and is suitable for the automated mass production and packaging.
- The technical solutions of the present disclosure are described as follows.
- This application provides a hoop-free plastic barrel, comprising:
- a barrel body with a rim portion; and
- a cover configured for sealing the rim portion;
- wherein a side edge of the rim portion of the barrel body is provided with a sealing ring; an outer peripheral surface of the sealing ring is a first sealing surface; an outer side of the barrel body is provided with an annular clamp ring; the annular clamp ring is arranged below the sealing ring; the cover is provided with a sealing groove configured for fitting the rim portion; the sealing groove comprises an inner side wall and an outer side wall; wherein the inner side wall of the sealing groove is close to a center of the barrel body, and the outer side wall of the sealing groove is away from the center of the barrel body; an outer side surface of the inner side wall of the sealing groove tightly fit with an inner wall of the rim portion; an inner side surface of the outer side wall of the sealing groove is provided with a second sealing surface in a seal fit with the first sealing surface; an outer peripheral surface of the cover is provided with a hook strip corresponding to the annular clamp ring; and an inner side wall of the hook strip is provided with a flange configured to be clamped with the annular clamp ring.
- In some embodiments, the hook strip is connected to a lower end of the outer side wall of the sealing groove; an inner side of a connection between the hook strip and the outer side wall of the sealing groove is provided with a tearing groove. The tearing groove largely facilitates a disassembly of the cover after an installation.
- In some embodiments, the cover is provided with a cover opening wrench; the hook strip is annularly arranged below the outer side wall of the sealing groove; a head end of the hook strip and a tail end of the hook strip are arranged at two sides of the cover opening wrench, respectively; and the head end of the hook strip is provided with a pull strip configured to facilitate tearing away the hook strip. The annularly arranged hook strip ensures the fixing reliability of the cover, and the pull strip and the tearing groove help to tear the hook strip, which facilitates the disassembly of the cover.
- In some embodiments, a connection between the cover opening wrench and the outer side wall of the sealing groove is provided with the tearing groove. The tearing groove helps to lift up and open the cover opening wrench.
- In some embodiments, an outer side of the barrel body is provided with the annular retaining ring; and a lower end of the cover opening wrench extends to an upper end surface of the annular retaining ring, effectively avoiding the cover opening wrench being opened accidently and improving the reliability of the barrel body.
- In some embodiments, the outer peripheral surface of the sealing ring is vertically provided with the first sealing surface; the inner side surface of the outer side wall of the sealing groove is provided with a protrusion ring; and the protrusion ring is provided with the second sealing surface in a seal fit with the first sealing surface.
- In some embodiments, a thickness of an upper edge of the rim portion is larger than a distance between the first sealing surface and the second sealing surface. The rim portion and the sealing groove are in an interference fit, which effectively improves the sealing performance of the barrel body.
- In some embodiments, the thickness of the upper edge of the rim portion is 0.1-1 mm larger the distance between the first sealing surface and the second sealing surface. When the difference is within such interval, the rim portion of the barrel body can be installed to a deeper position inside the sealing groove, providing a better sealing performance and fixing reliability, and facilitating the installation of the cover.
- In some embodiments, a lower end surface of the protrusion ring is provided with an inclined surface configured to facilitate an installation of the barrel body. The inclined surface help to guide and position during the installation of the rim portion, which facilitates the positioning and packaging of the equipment during the automated production, reducing the requirements on the accuracy of the equipment, and improving the fault tolerance rate of the equipment.
- The beneficial effects of the present disclosure are described as follows.
- In the plastic barrel, the sealing groove is in seal fit with the rim portion, which allows the reliable sealing of the barrel body. Specifically, the first sealing surface provided on the sealing ring tightly fit the second sealing surface on the inner side surface of the outer side wall of the sealing groove. The lower end surface of the protrusion ring is provided with the inclined surface to guide the installation of the barrel body, and thus the rim portion of the barrel body can be easily installed in the sealing groove, facilitating the automatic production. In addition, the clamp ring arranged on the outer side of the barrel body is clamped with the corresponding hook strip to fix the cover and avoid an axial movement of the cover after the installation, so as to further ensure the sealing reliability of the barrel body. Therefore, the sealing and fixing of the barrel body and the cover can be completed by one-step pressing, which is simple and easy to operate, such that the mass automatic sealing packaging and production may be easily reached, improving the production efficiency, reducing the labor intensity and shortening the production cycle. The tearing groove facilitates the operator to tear the hook strip along the tearing groove, such that the cover has simple disassembly.
-
FIG. 1 schematically depicts a cross-sectional structure of a barrel body according to an embodiment of the present disclosure; -
FIG. 2 is an enlarged view of part A inFIG. 1 ; -
FIG. 3 schematically depicts a structure of a cover according to an embodiment of the present disclosure; -
FIG. 4 is a cross-sectional view of the structure of the cover inFIG. 3 ; -
FIG. 5 is an enlarged view of part B inFIG. 4 ; -
FIG. 6 schematically depicts the barrel body after the cover is installed according to an embodiment of the present disclosure; -
FIG. 7 schematically depicts a cross-sectional view of the barrel body inFIG. 6 ; -
FIG. 8 is an enlarged view of part C inFIG. 7 ; and -
FIG. 9 schematically depicts the plastic barrel according to an embodiment of the present disclosure after a hook strip is torn. - The present disclosure will be further described in detail below with reference to the embodiments and the accompany drawings.
- Referring to an embodiment shown in
FIGS. 1-9 , a large-caliber, hoop-free and well-sealed plastic barrel is provided, which includes abarrel body 1 providing with arim portion 3 and a cover 2 configured for sealing therim portion 3. An outer edge of therim portion 3 of thebarrel 1 is integrally provided with asealing ring 4. An outer peripheral surface of thesealing ring 4 is vertically provided with a first sealing surface 4.1. The cover 2 is provided with asealing groove 5 configured for fitting therim portion 3. Thesealing groove 5 includes an inner side wall 5.1 and an outer side wall 5.2. The inner side wall 5.1 of thesealing groove 5 is close to a center of thebarrel body 1, and the outer side wall 5.2 of the sealinggroove 5 is away from the center of thebarrel body 1. An outer side surface of the inner side wall 5.1 of thesealing groove 5 tightly fit with an inner wall of therim portion 3. An inner side surface of the outer side wall 5.2 of thesealing groove 5 is provided with a protrusion ring 5.3. The protrusion ring 5.3 is provided with a second sealing surface 5.4 that is in a seal fit with the first sealing surface 4.1. A lower end surface of the protrusion ring 5.3 is provided with an inclined surface 5.5 configured to allow thebarrel body 1 to be conveniently installed. - An outer side of the
barrel body 1 is provided with anannular clamp ring 6. Theannular clamp ring 6 is arranged below the sealingring 4. An outer peripheral surface of the cover 2 is provided with ahook strip 7 corresponding to theannular clamp ring 6. The cover 2 is also provided with acover opening wrench 10. Thehook strip 7 is annularly arranged below the outer side wall 5.2 of the sealinggroove 5. A head end of thehook strip 7 and a tail end of thehook strip 7 are arranged at two sides of thecover opening wrench 10, respectively. The head end of thehook strip 7 is provided with apull strip 11 configured to conveniently tear thehook strip 7. An inner side wall of thehook strip 7 is provided with a flange 9 fixedly clamping with theannular clamp ring 6. Thehook strip 7 is connected to a lower end of the outer side wall 5.2 of the sealinggroove 5. A tearing groove 8 is provided on an inner side of a connection between thehook strip 7 and the outer side wall 5.2 of the sealinggroove 5. An outer side of thebarrel body 1 is provided with anannular retaining ring 12. A lower end of thecover opening wrench 10 extends to an upper end surface of theannular retaining ring 12. - A connection between the
cover opening wrench 10 and the outer side wall 5.2 of the sealinggroove 5 may be provided with the tearing groove 8. The tearing groove 8 on thecover opening wrench 10 is aligned with the tearing groove 8 on thehook strip 7. The tearing groove 8 allows an operator to conveniently tear off thecover opening wrench 10, and then allows the operator to conveniently tear thehook strip 7 along the tearing groove 8 through thepull strip 11. The tearing groove 8 has a thickness of 0.3-0.6 mm, and a width of 0.5-0.6 mm. - A thickness of an upper edge of the
rim portion 3 is larger than a distance between the first sealing surface 4.1 and the second sealing surface 5.4. A difference between the thickness of the upper edge of therim portion 3 and the distance between the first sealing surface 4.1 and the second sealing surface 5.4 is 0.1-1 mm; preferably 0.5 mm. - Raw material of the
barrel body 1 and the cover 2 is made of polypropylene (PP), polyethylene (PE) or a modified engineering plastic of PE. A shrinkage rate of a product obtained through injection molding of the raw material is less than 1.5% to ensure the sealing performance of the product. - A process of using the large-caliber, hoop-free and well-sealed plastic barrel is described as follows. The cover 2 is pressed on an upper end of the
barrel body 1, that is, therim portion 3 of thebarrel body 1 is installed in the sealinggroove 5. Due to the inclined surface 5.5 arranged on the lower end surface of the protrusion ring 5.3, the rim portion of the barrel body can be easily installed in the sealinggroove 1. The inclined surface 5.5 plays a guiding role and facilitates the automated production. Since the thickness of the upper edge of therim portion 3 is greater than the distance between the first sealing surface 4.1 and the second sealing surface 5.4, the outer side surface of the inner side wall 5.1 of the sealinggroove 5 and the inner wall of therim portion 3 are in a sealing and tight fit. The second sealing surface 5.4 provided on the protrusion ring 5.3 closely fits with the first sealing surface 4.1 on thesealing ring 4 to achieve an interference fit. In other words, a seal fit between the cover 2 and theedge 3 of thebarrel body 1 is achieved through the plasticity of the cover 2, and the sealing reliability of thebarrel body 1 is improved through double-sided sealing. In this process, theannular clamp ring 6 arranged on the outer side surface of thebarrel body 1 is clamped with thehook strip 7. Specifically, theclamp ring 6 is clamped with the flange 9 arranged on thehook strip 7 to fix the cover 2 and avoid an axial movement of the cover 2 after the installation, so as to further ensure the sealing reliability for thebarrel body 1. When the cover 2 needs to be disassembled, thehook strip 7 is torn along the tearing groove 8 through thepull strip 11, that is, the clamp ring is separated from the flange 9 to release a clamping state, and the operator can lift up the cover 2 at this time. - The above-mentioned embodiments are merely preferred embodiments of this disclosure, and are not intended to limit the present disclosure. It should be understood that variations and modifications made by those skilled in the art without departing from the spirit of this disclosure should fall within the scope of the present disclosure defined by the appended claims.
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN202110623715.2 | 2021-06-04 | ||
CN202110623715.2A CN113200235A (en) | 2021-06-04 | 2021-06-04 | Large-diameter hoop-free high-sealing plastic barrel |
Publications (1)
Publication Number | Publication Date |
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US20220119167A1 true US20220119167A1 (en) | 2022-04-21 |
Family
ID=77024249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/561,800 Abandoned US20220119167A1 (en) | 2021-06-04 | 2021-12-24 | Large-caliber, hoop-free and well-sealed plastic barrel |
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US (1) | US20220119167A1 (en) |
CN (1) | CN113200235A (en) |
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- 2021-06-04 CN CN202110623715.2A patent/CN113200235A/en active Pending
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Also Published As
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CN113200235A (en) | 2021-08-03 |
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