Double-layer sealed plastic threaded stainless steel cup

By designing a plastic sealing ring on the stainless steel cup body and using induction welding technology, the problems of difficult cleaning and leakage of the stainless steel cup sealing ring are solved, achieving the effects of improved sealing performance, easy cleaning, reduced costs, and a strong bond.

CN223504002UActive Publication Date: 2025-11-04TONGDA SMART TECH (XIAMEN) CO LTD
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Patent Information

Application Number
CN202423159209.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-11-04
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

Existing stainless steel cups have problems with the sealing ring, making cleaning difficult. Additionally, the plastic parts are prone to leakage when combined with the steel cup, and they are also expensive.

Method used

Featuring a stainless steel cup body and a plastic sealing ring, the plastic sealing ring is connected to the cup body using induction welding technology. Threaded structures are incorporated into the sealing ring and the cup lid to achieve a double-layer sealing effect, eliminating the need for a sealing ring and improving sealing and tightness.

Benefits of technology

It achieves improved sealing of stainless steel cups, is easy to clean, reduces costs, ensures a firm bond between plastic parts and steel cups, prevents them from falling off, meets design requirements, makes drinking water convenient, and is easy to carry.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of stainless steel cups, and discloses a double-layer sealed plastic threaded stainless steel cup which comprises a cup body, a sealing ring and a cup cover, the cup body is made of stainless steel, the sealing ring is made of plastic, the sealing ring is connected to a cup opening of the cup body in a sleeved mode, external threads are arranged on the sealing ring, and internal threads are arranged on the cup cover. And the cup cover is in threaded connection with the sealing ring. The sealing ring is connected to the cup opening of the cup body through the induction welding technology. The stainless steel cup technology is reasonably designed, the cup body, the sealing ring and the cup cover are adopted, the sealing performance of the stainless steel cup is improved, cleaning is easy, and a plastic part and the stainless steel cup are tightly combined. The stainless steel cup does not need a sealing ring to seal water and is convenient to clean, and the cost is reduced; the plastic threads on the plastic cover replace threads of a steel cup, the height of a cup opening of the steel cup is shortened, and the modeling requirement is met. And the plastic ring is combined with the steel cup, so that a quite firm effect can be achieved through induction welding, and the plastic ring is not easy to fall off.
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Description

TECHNICAL FIELD

[0001] The utility model relates to stainless steel cup technical field, concretely relates to a double -layer sealed plastic thread stainless steel cup. BACKGROUND

[0002] The water cup is the necessity of people's life, and it generally includes a cup body and a lid, the lid is often provided with internal threads, the height of the internal threads is about 10mm, in the steel cup industry, the limit height of the rolling threads of the cup opening is about 14mm, so that the gap between the lid and the steel cup after assembly is less than 1mm, and the rolling threads of the steel cup opening cannot meet the requirements, in addition, the steel cups on the market are generally high in price, and can be sealed only by relying on a sealing ring, which causes a burden for cleaning the cup, in order to meet the needs of consumers, the sealing ring of the steel cup is preferably removed, the price is reduced, and the user is facilitated to clean, in addition, the combination of the plastic ring and the steel cup relies on interference fit, and under normal circumstances, the plastic ring and the steel cup cannot be tightly attached without water leakage, so the intervention of induction welding can effectively solve the problem.

[0003] Therefore, the existing stainless steel cup technology needs to be further designed. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at overcoming the problems in the prior art that the stainless steel cup has a sealing ring, is difficult to clean, and leaks if other plastic parts are used, and through reasonable design of the stainless steel cup technology, the cup body, the sealing ring and the cup cover are used to improve the sealing performance of the stainless steel cup, facilitate cleaning and tightly combine the plastic part and the stainless steel cup.

[0005] The technical scheme of the utility model is as follows:

[0006] A double -layer sealed plastic thread stainless steel cup, the stainless steel cup includes: a cup body, a sealing ring and a cup cover, the cup body is selected from a stainless steel cup body, the sealing ring is selected from a plastic sealing ring, the sealing ring is sleeved on the cup opening of the cup body, the sealing ring is provided with external threads, the cup cover is provided with internal threads, and the cup cover is connected with the sealing ring through threads.

[0007] Further, the sealing ring is connected to the cup opening of the cup body through induction welding technology.

[0008] Further, the sealing ring includes a ring body, a sealing protrusion and a sleeving groove, the upper surface of the ring body is provided with the sealing protrusion, the lower part of the ring body is provided with the sleeving groove, the sleeving groove is used for sleeving on the cup opening of the cup body, the sealing protrusion is used for sealing in cooperation with the cup cover, and the side surface of the ring body is provided with the external threads.

[0009] Further, the outer thread, the ring body, the sealing protrusion and the sleeve connecting groove are integrally formed.

[0010] Further, the ring body is connected to the cup mouth of the cup body by induction welding at the sleeve connecting groove.

[0011] Further, a return bend is arranged at the cup mouth of the cup body and is inserted into the sleeve connecting groove.

[0012] Further, the stainless steel cup further comprises a lid handle arranged on the cup lid.

[0013] Further, the stainless steel cup further comprises a cup nozzle arranged on the cup lid and a cup plug covering the cup nozzle and used for plugging or releasing the cup nozzle, wherein the cup nozzle is connected to the inner cavity of the cup body and used for a user to drink water in the cup body.

[0014] Further, one end of the cup plug is connected to the lid handle through a rotating shaft, and the other end of the cup plug covers the cup nozzle, and the cup plug can be opened or buckled on the cup nozzle through the rotating shaft.

[0015] Further, the cup body is a circular truncated cone or a circular cylinder.

[0016] Further, a plurality of side planes are arranged on the side surface of the cup body and used for preventing the cup body from sliding.

[0017] Further, the side planes are connected at the head and tail and have a polygonal cross section.

[0018] Further, the cross section is an equilateral polygon.

[0019] Further, a convex ring is arranged at the top of the inner side of the cup lid and forms a sealing effect with the sealing ring.

[0020] Further, the convex ring and the cup lid are integrally formed.

[0021] Further, the inner side of the sealing protrusion is on the same plane as the center surface of the sleeve connecting groove.

[0022] Further, an outward inclined surface is arranged at the lower part of the convex ring, and an inward inclined surface is arranged at the upper part of the sealing protrusion, and the outward inclined surface and the inward inclined surface cooperate to form a sealing effect.

[0023] Further, the center line of the cup nozzle and the lid handle passes through the center of the cup lid.

[0024] Further, the cup lid, the lid handle and the cup nozzle are integrally formed.

[0025] Further, the cup cover, the cover handle, the internal thread and the cup spout are integrally formed.

[0026] Further, the cup cover, the cover handle and the cup spout are all made of stainless steel.

[0027] Further, the cup plug is made of plastic material, and the cup plug is in sealing connection with the cup spout.

[0028] Beneficial effects

[0029] The utility model discloses a reasonable design to stainless steel cup technology adopts cup body, sealing ring and cup cover, can realize the sealing property of stainless steel cup improves, easy to wash and plastic piece and the combination of stainless steel cup close effect. The stainless steel cup does not need to utilize sealing ring to seal water, and the utility model discloses convenient to wash, reduces the cost etc. ; Still adopt plastic thread to replace the thread of steel cup, shorten the height of steel cup cup mouth, satisfy the modeling demand, still the combination of plastic ring and steel cup, through inductive welding can reach quite firm effect, and do not easily fall off etc. ; Adopt the cooperation of cup plug and cup spout, can realize more convenient drinking water, adopt cover handle, convenient the carrying of cup etc. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the structure diagram of the utility model discloses a double -layer sealing's plastic thread stainless steel cup.

[0031] Figure 2 It is the section structure diagram of the utility model discloses a double -layer sealing's plastic thread stainless steel cup.

[0032] Figure 3 It is the explosion structure diagram of the utility model discloses a double -layer sealing's plastic thread stainless steel cup.

[0033] Figure 4 It is the structure diagram of the sealing ring of the utility model discloses a double -layer sealing's plastic thread stainless steel cup.

[0034] Figure 5 It is the section structure diagram of the sealing ring of the utility model discloses a double -layer sealing's plastic thread stainless steel cup.

[0035] Drawing reference: 01, cup cover;02, cup body;03, cup plug;04, plug recess;05, side plane;06, cover handle;07, sealing ring;08, cup spout;71, sleeve joint recess;72, sealing protrusion;73, external thread;071, convex ring;072, outward inclined surface;073, inward inclined surface;021, back bending piece. DETAILED DESCRIPTION

[0036] With reference to the drawings in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the ordinary skilled in the art without making creative efforts are within the protection scope of the present application.

[0037] Referring to Figures 1-5 As shown in the utility model provides a double -layer sealed plastic thread stainless steel cup, the stainless steel cup includes: cup body 02, sealing ring 07 and cup cover 01, the cup body 02 selects the cup body of circular truncated cone or the cup body of cylinder;

[0038] Wherein, the cup body 02 selects the cup body of stainless steel, sealing ring 07 selects the sealing ring of plastic, and for PP (polypropylene) material, sealing ring 07 is sleeved in the cup mouth of cup body 02, sealing ring 07 is equipped with external thread 73, cup cover 01 is equipped with internal thread, and cup cover 01 is connected with sealing ring 07 through thread;The cup mouth of cup body 02 is connected by induction welding technology, the top of the inside of cup cover 01 is equipped with convex ring 071, and convex ring 071 forms sealing effect with sealing ring 07, and convex ring 071 and cup cover 01 are integrally formed;Sealing ring 07 includes ring body, sealing protrusion 72 and sleeving groove 71, the upper surface of ring body is equipped with sealing protrusion 72, the lower part of ring body is equipped with sleeving groove 71, and sleeving groove 71 is used to be sleeved on the cup mouth of cup body 02, and sealing protrusion 72 is used to cooperate with cup cover 01 and seal, the side of ring body is equipped with external thread 73, and the inside of sealing protrusion 72 and the center surface of sleeving groove 71 are on the same plane;The external thread 73, ring body, sealing protrusion 72 and sleeving groove 71 are integrally formed;The cup mouth of cup body 02 is connected by induction welding technology at sleeving groove 71;The cup mouth of cup body 02 is equipped with backbend piece 021, backbend piece 021 is inserted in sleeving groove 71, backbend piece 021 and cup body 02 are integrally formed, and sealing ring 07 is induction welded on backbend piece 021;

[0039] The stainless steel cup further comprises a cover handle 06 arranged on the cup cover 01, a cup nozzle 08 arranged on the cup cover 01 and a cup plug 03 sleeved on the cup nozzle 08 and used for plugging or releasing the cup nozzle 08, the cup nozzle 08 is communicated with the inner cavity of the cup body 02 and is used for a user to drink water in the cup body 02, one end of the cup plug 03 is connected to the cover handle 06 through a rotating shaft, the other end of the cup plug 03 is sleeved on the cup nozzle 08, and the cup plug 03 can be opened or buckled on the cup nozzle 08 through the rotating shaft; the center line of the cup nozzle 08 and the cover handle 06 passes through the center of the cup cover 01; the cup cover 01, the cover handle 06, the internal thread and the cup nozzle 08 are integrally formed, and the cup cover 01, the cover handle 06 and the cup nozzle 08 are all made of stainless steel; the cup plug 03 is made of plastic, and the cup plug 03 is in sealing connection with the cup nozzle 08.

[0040] The side surface of the cup body 02 is provided with a plurality of side planes 05, the side planes 05 are used for preventing the cup body 02 from sliding, the side planes 05 are connected in a head-to-tail mode, and the cross section of the side planes 05 is in a polygonal shape, specifically, in an equilateral polygonal shape, and more specifically, in a regular octagonal shape.

[0041] The lower part of the convex ring 071 is provided with an outward inclined surface 072, the upper part of the sealing convex 72 is provided with an inward inclined surface 073, and the outward inclined surface 072 and the inward inclined surface 073 are matched to form a seal.

[0042] The top of the cup plug 03 is provided with a plug groove 04, the plug groove 04 is located above the cup nozzle 08, the plug groove 04 is used for allowing the cup plug 03 to buckle and open the cup nozzle 08, the lower part of the plug groove 04 corresponds to a plug convex, the plug convex can be sealed with the mouth of the cup nozzle 08, and the cup plug 03 is buckled with the cup nozzle 08.

[0043] The stainless steel is SUS304 stainless steel, and the stainless steel cup is made of food-grade material.

[0044] The specific implementation of the utility model is as follows: for the stainless steel cup, a plastic sealing ring is welded on the cup mouth of the stainless steel cup body through induction welding technology, the stainless steel is SUS304, the plastic ring is made of PP material, after the plastic ring is buckled with the steel cup, the plastic ring is fused and bonded with the steel cup through induction welding with a power of 35kw and an oscillation frequency of 40KHZ, the welding effect is realized, and water is prevented from leaking out. In addition, the stainless steel cup is verified through experiments, the plastic ring can withstand a pulling force of 250N without loosening, and the steel cup falling has no effect on the plastic ring, so that the firmness of the stainless steel cup is ensured.

[0045] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-sealed plastic threaded stainless steel cup, characterized in that, The stainless steel cup includes a cup body, a sealing ring, and a cup lid. The cup body is made of stainless steel, and the sealing ring is made of plastic. The sealing ring is fitted onto the mouth of the cup body. The sealing ring has external threads, and the cup lid has internal threads. The cup lid and the sealing ring are connected by threads.

2. The double-sealed plastic threaded stainless steel cup according to claim 1, characterized in that, The sealing ring is connected to the mouth of the cup body using induction welding technology.

3. A double-sealed plastic threaded stainless steel cup according to claim 2, characterized in that, The sealing ring includes a ring body, a sealing protrusion, and a fitting groove. The sealing protrusion is provided on the upper surface of the ring body, and the fitting groove is provided on the lower part of the ring body. The fitting groove is used to fit onto the mouth of the cup body, and the sealing protrusion is used to cooperate with the cup lid for sealing. The external thread is provided on the side of the ring body.

4. A double-sealed plastic threaded stainless steel cup according to claim 3, characterized in that, The external thread, ring, sealing protrusion, and sleeve groove are integrally formed.

5. A double-sealed plastic threaded stainless steel cup according to claim 3, characterized in that, The ring is connected to the mouth of the cup body at the fitting groove using induction welding technology.

6. A double-sealed plastic threaded stainless steel cup according to claim 5, characterized in that, The cup body has a bend at the mouth, and the bend is inserted into the sleeve groove.

7. A double-sealed plastic threaded stainless steel cup according to claim 1, characterized in that, The stainless steel cup also includes a lid handle, which is disposed on the cup lid.

8. A double-sealed plastic threaded stainless steel cup according to claim 7, characterized in that, The stainless steel cup also includes a spout and a stopper. The spout is disposed on the cup lid, and the stopper covers the spout. The stopper is used to seal or release the spout. The spout is connected to the inner cavity of the cup body and is used by the user to drink water from the cup.

9. A double-sealed plastic threaded stainless steel cup according to claim 8, characterized in that, One end of the cup stopper is connected to the lid handle via a pivot, and the other end of the cup stopper covers the cup spout. The cup stopper can be opened or closed on the cup spout via the pivot.

10. A double-sealed plastic threaded stainless steel cup according to claim 1, characterized in that, The cup body has several side planes on its side surface, which are used to prevent the cup body from sliding.