Polyester bottle with sealing structure
By designing a sealing component for polyester bottles and utilizing the combination of a plastic internal threaded ring and a metal sheet, clockwise rotation of the sealing plug and multi-stage sealing are achieved, solving the problem of poor sealing performance of polyester bottles and improving sealing reliability and leakage prevention capabilities.
Patent Information
- Application Number
- CN202520694062.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-14
AI Technical Summary
Existing polyester bottles have poor sealing performance; the sealing ring is easy to fall off and is not easily detected, leading to liquid leakage.
A sealing assembly was designed, including a sealing plug, a plastic internal threaded ring, a throttle, and a metal plate. By rotating the throttle clockwise, the sealing plug moves downward, and the sealing effect is improved by combining a multi-stage sealing structure.
It improves the sealing effect, avoids liquid leakage, and ensures the reliability of the seal and the guarantee of multi-level sealing.
Smart Images

Figure CN223920017U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to polyester bottle technical field, especially a kind of polyester bottle with sealing structure. BACKGROUND
[0002] Polyester bottle plays an indispensable role in modern production and life by its excellent material properties, advanced production process and wide application field.
[0003] The existing polyester bottle is usually sealed by the sealing ring in the bottle cap during use, which has poor sealing effect, and the sealing ring in the bottle cap is usually sleeved on the inner side, so that the sealing ring inside is easy to fall off after the bottle cap is removed, and it is not easy to find, resulting in the leakage of liquid after the bottle cap is installed subsequently, therefore, we propose a polyester bottle with sealing structure. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of polyester bottle with sealing structure, by setting sealing assembly, specifically is after bottle cap installation, clockwise rotation handle, at this time plastic inner thread ring moves downward, and drives sealing plug to move downward together, when sealing plug and bottle mouth top contact, by the extrusion of sealing plug continuously, reach the effect of sealing again, this mode can better sealing effect, avoid the situation of leakage, and when sealing ring falls off, it can also be sealed, solve the problem that the sealing ring inside is easy to fall off after the bottle cap is removed in the existing polyester bottle, and it is not easy to find, resulting in the leakage of liquid after the bottle cap is installed subsequently.
[0005] To solve the above technical problems, the utility model is realized by the following technical schemes:
[0006] The utility model is a kind of polyester bottle with sealing structure, including polyester bottle, the polyester bottle top is provided with bottle cap, the bottle cap inside is provided with sealing assembly, the sealing assembly includes sealing plug, the sealing plug top center is fixedly connected with plastic inner thread ring, the bottle cap top center is provided with rotation hole, the rotation hole in the bottle cap center is rotatably connected with plastic screw rod, the plastic screw rod top is fixedly connected with handle, the sealing plug inside is inlaid with metal sheet;Because metal sheet is provided with metal sheet inside, sealing plug can be better pushed down, and the metal sheet can increase hardness, so as to reduce the deformation of sealing plug.
[0007] Further, the plastic threaded rod outer surface is in threaded connection with the inner wall of the plastic internal thread ring, three limiting outer rods are fixedly connected to the top of the sealing plug, limiting inner rods are slidably connected to the inside of the three limiting outer rods, the outer side of the sealing plug is a conical surface, the conical surface of the outer side of the sealing plug is in contact with the bottle mouth of the top of the polyester bottle, and the top of the limiting inner rod is fixedly connected to the top of the inner wall of the bottle cap; the sealing plug slides on the limiting inner rod through the limiting outer rod, so that the sealing plug moves in a straight line.
[0008] Further, the top of the inner wall of the bottle cap is sleeved with a sealing ring, the outer ring and the inner ring of the sealing ring are provided with positioning ring one, and the top of the positioning ring one is fixedly connected to the top of the inner wall of the bottle cap; the positioning ring one is used for positioning when the sealing ring is installed.
[0009] Further, the outer side of the bottle mouth of the top of the polyester bottle is sleeved with a sealing ring, the outer side of the sealing ring is provided with positioning ring two, the bottom of the positioning ring two is fixedly connected to the surface of the polyester bottle, the sealing ring on the inner wall of the bottle cap is in contact with and extruded by the top of the polyester bottle after installation, the bottom of the polyester bottle is in contact with and extruded by the top of the sealing ring, and the inner side of the bottle cap is in threaded connection with the outer side of the bottle mouth of the top of the polyester bottle; the positioning ring two is used for positioning when the sealing ring is installed.
[0010] The utility model has the following beneficial effects:
[0011] 1、 the utility model discloses a sealing assembly is set up, specifically is after the installation of bottle cap, clockwise rotating handle, plastic internal thread ring moves down to drive sealing plug and moves down together, when sealing plug and bottle mouth top contact, through the extrusion of sealing plug, reach the effect of sealing again, this mode can be sealed better, avoid the situation of leakage, and when sealing ring appears the situation of falling, can also carry out sealing treatment.
[0012] 2、 the utility model discloses a sealing ring is set up, specifically is sealing ring is sleeved between two positioning ring one, then sealing ring is sleeved in the inside of positioning ring two, after the installation of bottle cap is completed, sealing ring is extruded, plays the role of first sealing, the bottom of bottle cap will extrude sealing ring, thereby plays the role of second sealing, through multistage sealing, can improve the sealing effect greatly.
[0013] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. DRAWINGS
[0014] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the present application, and for the ordinary skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0015] Figure 1 It is the overall structure schematic diagram of the present application;
[0016] Figure 2 It is the polyester bottle front view sectional structure schematic diagram of the present application;
[0017] Figure 3 It is the bottle cap internal structure schematic diagram of the present application;
[0018] Figure 4 It is the sealing plug overall structure schematic diagram of the present application;
[0019] Figure 5 It is the bottle cap inner wall structure schematic diagram of the present application.
[0020] In the drawings, the component list represented by each mark is as follows:
[0021] 1, polyester bottle; 11, bottle cap; 12, sealing assembly; 121, sealing plug; 211, metal sheet; 122, plastic internal thread ring; 123, plastic threaded rod; 124, handle; 125, limiting outer rod; 251, limiting inner rod; 13, sealing ring; 131, positioning ring one; 14, sealing ring; 141, positioning ring two. Specific implementation
[0022] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application, obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the present application.
[0023] Please refer to Figures 1-5As shown, the utility model is a kind of polyester bottle with sealing structure, including polyester bottle 1, polyester bottle 1 top is provided with bottle cap 11, bottle cap 11 inside is provided with sealing assembly 12, sealing assembly 12 includes sealing plug 121, sealing plug 121 top center is fixedly connected with plastic inner thread ring 122, bottle cap 11 top center is provided with rotating hole, bottle cap 11 center rotating hole is rotatably connected with plastic screw rod 123, plastic screw rod 123 top is fixedly connected with handle 124, sealing plug 121 inside is embedded with metal sheet 211;Bottle cap 11 is installed, and handle 124 is rotated clockwise, plastic inner thread ring 122 moves downward at this time, and sealing plug 121 is driven to move downward together, when sealing plug 121 contacts with bottle mouth top, sealing plug 121 is extruded continuously, and the effect of sealing is achieved again, this mode can be sealed better, avoid the situation of leakage, and when sealing ring 13 falls, sealing treatment can be carried out.
[0024] Plastic screw rod 123 outer surface is screw-connected with plastic inner thread ring 122 inner wall, three limit outer rods 125 are fixedly connected to the top of sealing plug 121, limit inner rod 251 is slidably connected in the inside of three limit outer rods 125, the outer side of sealing plug 121 is provided with taper surface, and the taper surface of the outer side of sealing plug 121 contacts with the bottle mouth at the top of polyester bottle 1, and the top of limit inner rod 251 is fixedly connected with the inner wall top of bottle cap 11.
[0025] The inner wall top of bottle cap 11 is provided with sealing ring 13, and the outer ring and the inner ring of sealing ring 13 are provided with positioning ring one 131, and the top of positioning ring one 131 is fixedly connected with the inner wall top of bottle cap 11.
[0026] The outer side of the bottle mouth at the top of polyester bottle 1 is provided with sealing ring 14, and the outer side of sealing ring 14 is provided with positioning ring two 141, and the bottom of positioning ring two 141 is fixedly connected with the surface of polyester bottle 1, and the sealing ring 13 on the inner wall of bottle cap 11 contacts and extrudes the top of polyester bottle 1 after installation, and the bottom of polyester bottle 1 contacts and extrudes the top of sealing ring 14;The inner side of bottle cap 11 is screw-connected with the outer side of the bottle mouth at the top of polyester bottle 1;Sealing ring 13 is sleeved between two positioning ring one 131, and sealing ring 14 is sleeved on the inner side of positioning ring two 141, and then bottle cap 11 is covered on the bottle mouth at the top of polyester bottle 1, when bottle cap 11 is installed, sealing ring 13 is extruded, and the first sealing effect is achieved, the bottom of bottle cap 11 is extruded to sealing ring 14, so that the second sealing effect is achieved, and the sealing effect can be greatly improved through multi-stage sealing.
[0027] One specific application of the embodiment is:
[0028] In use, the sealing ring 13 is sleeved between the two positioning rings 131, the sealing ring 14 is sleeved inside the positioning ring 141, liquid is injected into the polyester bottle 1, then the bottle cap 11 is capped on the bottle mouth at the top of the polyester bottle 1, when the bottle cap 11 is installed, the bottle mouth at the top of the polyester bottle 1 will extrude the sealing ring 13, thus playing a first sealing role, at the same time, the bottom of the bottle cap 11 will contact and extrude the sealing ring 14, thus playing a second sealing role, finally, the knob 124 is rotated clockwise, at this time, the plastic internal thread ring 122 moves downward and drives the sealing plug 121 to move downward together, the sealing plug 121 slides on the limiting inner rod 251 through the limiting outer rod 125, so that the sealing plug 121 moves in a straight line, and because the metal sheet 211 is internally provided with the metal sheet 211, the sealing plug 121 can be better pushed downward, when the sealing plug 121 contacts the top of the bottle mouth, the sealing plug 121 continuously extrudes, thus achieving a sealing effect again, and the metal sheet 211 can increase the hardness, thus reducing the deformation of the sealing plug 121, so that the installation of the bottle cap 11 is completed, and the sealing effect is better, and the leakage is avoided.
[0029] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0030] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.
Claims
1. A polyester bottle with a sealing structure, comprising a polyester bottle (1), wherein a bottle cap (11) is provided on the top of the polyester bottle (1), characterized in that: The bottle cap (11) is provided with a sealing assembly (12), which includes a sealing plug (121). A plastic internal thread ring (122) is fixedly connected to the top center of the sealing plug (121). A rotating hole is opened at the top center of the bottle cap (11). A plastic threaded rod (123) is rotatably connected in the rotating hole at the center of the bottle cap (11). A handle (124) is fixedly connected to the top of the plastic threaded rod (123). A metal piece (211) is embedded inside the sealing plug (121).
2. A polyester bottle with a sealing structure according to claim 1, characterized in that, The outer surface of the plastic threaded rod (123) is threadedly connected to the inner wall of the plastic internal threaded ring (122). The top of the sealing plug (121) is fixedly connected to three limiting outer rods (125), and the three limiting outer rods (125) are slidably connected to limiting inner rods (251).
3. A polyester bottle with a sealing structure according to claim 2, characterized in that, The outer side of the sealing plug (121) is conical, and the conical surface of the outer side of the sealing plug (121) contacts the bottle mouth at the top of the polyester bottle (1). The top of the limiting inner rod (251) is fixedly connected to the top of the inner wall of the bottle cap (11).
4. A polyester bottle with a sealing structure according to claim 3, characterized in that, A sealing ring (13) is fitted on the top of the inner wall of the bottle cap (11). The outer and inner rings of the sealing ring (13) are each provided with a positioning ring (131). The top of the positioning ring (131) is fixedly connected to the top of the inner wall of the bottle cap (11).
5. A polyester bottle with a sealing structure according to claim 4, characterized in that, A sealing ring (14) is fitted on the outside of the top opening of the polyester bottle (1), and a positioning ring (141) is provided on the outside of the sealing ring (14). The bottom of the positioning ring (141) is fixedly connected to the surface of the polyester bottle (1).
6. A polyester bottle with a sealing structure according to claim 5, characterized in that, After installation, the sealing ring (13) on the inner wall of the bottle cap (11) contacts and presses against the top of the polyester bottle (1), and the bottom of the polyester bottle (1) contacts and presses against the top of the sealing ring (14). The inner side of the bottle cap (11) is threadedly connected to the outer side of the top opening of the polyester bottle (1).