Screwless vertical lid opening and closing structure for container

The screwless vertical lid structure addresses the tediousness and heat loss issues of conventional screw-type closures by employing a deformable elastic member and lock switch mechanism for one-handed operation and secure sealing.

JP2026025900APending Publication Date: 2026-02-16ZHEJIANG COOLESTS TECH CO LTD
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Patent Information

Application Number
JP2025104003
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-07-31
Filing Date
2025-06-19
Publication Date
2026-02-16

AI Technical Summary

Technical Problem

Conventional methods of opening and closing container lids require twisting, which is tedious and allows hot air to escape, especially in thermal cups with screw-type closures.

Method used

A screwless vertical lid opening and closing structure using a sealing device with a deformable elastic member, a pull shaft, and a lock switch mechanism that allows one-handed operation and secure sealing.

Benefits of technology

Enables quick, one-handed opening and closing of the lid, preventing heat loss and spillage, while maintaining a secure seal without the need for screws.

✦ Generated by Eureka AI based on patent content.

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Abstract

To close a container by providing a locking port position on a sealing device and an inner wall of a container body to be locked.SOLUTION: The screwless vertical cover opening and closing structure of the container includes a container body and a cover body, the cover body is provided with a sealing device, the cover body is arranged on the container body in a sealable manner through the sealing device, and the cover body includes a base and a deformable elastic sealing member sleeved on the base. The base is provided with a pull shaft, the lid body is provided with a movable locking switch, the locking switch and the pull shaft are connected through a rotor, the lid body is further provided with a limiting block, and the movable locking switch can be rotated up and down to open and close the container lid from the container body. In the present invention, the locking switch is provided to control the opening and closing of the container cover, which is simple and convenient, and the hot air does not escape through the traditional spiral cover.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] The present invention relates to a container having a lid-opening function, and more particularly to a screwless vertical lid opening and closing structure for a container. [Background technology]

[0002] Currently, a thermal cup is a water container generally made of ceramic or stainless steel with a vacuum layer added, with a tightly sealed lid on top, and the vacuum insulation layer delays the heat dissipation of the liquid inside, thereby achieving the purpose of heat retention. Most thermal cups generally have a screw structure on the opening of the thermal case when the lid is attached, and the lid and the thermal case are connected by a screw tightening method to achieve heat retention.

[0003] For example, the thermos pot with pressure limiting valve disclosed in application publication number CN117918691A includes a pot lid and a pot body, the pot lid being mounted on top of the pot body, a pressure limiting valve mounted on the top of the pot body and communicating with the interior of the pot body, a pressure relief switch device connected to the pressure limiting valve for opening and closing the pressure limiting valve, and the pressure relief switch device including a housing open on one side, a pressure relief switch shaft, a pressure relief lever shaft, a pressure relief switch, and a pressure relief lever. The housing is mounted on the pot body, a piston at one end of the pressure limiting valve extends into the housing, the pressure relief switch is mounted on the open side of the housing, its upper end connected to the top of the housing via the pressure relief switch shaft, its lower end connected to the bottom end of the pressure relief lever, and the pressure relief lever connected to the center of the housing via the pressure relief lever shaft, with its tip connected to the piston. The present invention has the advantages of pressure relief switch control for steam generated therein, self-heating capability, and ease of use.

[0004] The above-mentioned thermos pot keeps the contents warm by tightening the lid with a case screw and the container lid. However, with this method, the user needs to rotate the lid many times when closing the thermos cup. As the lid is rotated, the hot air inside the thermos cup is likely to escape, making the thermos cup less effective. Moreover, the process of opening and closing the thermos cup requires repeated twisting, which is tedious. Therefore, a new method for opening the container lid needs to be improved. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] China Patent Publication No. CN117918691A Summary of the Invention [Problem to be solved by the invention]

[0006] The object of the present invention is to provide a screwless vertical lid opening and closing structure for a container in order to solve the technical problems that the above-mentioned conventional methods of opening and closing by screwing the case or by using both hands to open and close the lid are troublesome and that hot air is likely to escape when opening and closing. [Means for solving the problem]

[0007] In order to achieve the above object, an embodiment of the present invention provides a screwless vertical lid opening and closing structure for a container, comprising a container body and a lid, the lid is provided with a sealing device, the lid is sealably attached to the container body via the sealing device, the sealing device comprises a base and a deformable elastic sealing member attached to the base, the deformable elastic sealing member is fixed and enclosed in a locking groove of the base to prevent the deformable elastic sealing member from moving or shifting and to seal and prevent water from entering, a pull shaft is provided on the base, and a lock switch is provided on the lid, the lock switch and the pull shaft are connected to each other. The pull shaft is connected to the base via a rotor, and a guide surface is provided inside the cover. The rotor and the guide surface are rotatably abutted against each other. An opening is provided in the guide surface. One end of the pull shaft is drilled through the opening and connected to the rotor, and the other end of the pull shaft is connected to the base. The lock switch rotates to rotate the rotor, and the rotor moves the pull shaft and the base axially up or down. The cover is further provided with a restricting block that can restrict the lock switch to reverse only after achieving an optimal operating effect.

[0008] When the base connected to the pull shaft moves upward, the deformable elastic sealing member expands radially and bends outward, engaging with the engaging opening on the inner wall of the container body and closing the lid and the container body; when the base connected to the pull shaft moves downward, the deformable elastic sealing member resets and detaches from the inner wall of the container body, and opening the lid and the container body.

[0009] Alternatively, the lock switch is provided with a slide protrusion, the bottom of the regulating block is provided with a slide groove, the cover body is provided with a limiting auxiliary position, the slide protrusion and the slide groove are fitted together, the regulating block can slide between the lock switch and the limiting auxiliary position, when the entire regulating block is located on the lock switch, the lock switch can be reversed, and when one end of the regulating block is located on the lock switch and the other end is located at the limiting auxiliary position, the lock switch is restricted from being reversed.

[0010] Alternatively, the lock switch may have a first elastic protrusion, and the bottom of the restriction block may have second and third elastic protrusions, so that the first, second and third protrusions can be relatively deformed during movement of the restriction block, resulting in a change in positional order.

[0011] Alternatively, a first stopper is provided on the lock switch, and a second stopper is provided at the bottom of the regulating block, and the first stopper and the second stopper are fitted together to prevent the regulating block and the lock switch from sliding off relative to each other.

[0012] Optionally, the limiting auxiliary position is provided with a rib to ensure that the limiting block does not fall off and moves smoothly.

[0013] Optionally, a central portion of the rotor has a relief position, and one end of the pull shaft is inserted into the relief position and connected to the rotor.

[0014] Alternatively, the rotor may have a first insertion hole extending therethrough, and one end of the pull shaft may have a second insertion hole extending therethrough, and when the one end of the pull shaft is inserted into the relief position, the first insertion hole and the second insertion hole are aligned with each other, and an insertion pin is drilled through the first insertion hole and the second insertion hole to connect the pull shaft and the rotor.

[0015] Optionally, the bottom and one side of the rotor are smooth arcs.

[0016] Alternatively, a spring may be fitted around the pull shaft, one end of the spring contacting the base and the other end contacting the guide surface, thereby serving to flexibly expand and contract the deformable elastic sealing member.

[0017] Optionally, a filter mesh is further provided at the bottom of the lid.

[0018] Optionally, the deformable elastic sealing member is enclosed in the locking groove of the base to fix the deformable elastic sealing member, prevent the deformable elastic sealing member from shifting position, and provide a sealed seal to prevent water leakage. [Effects of the Invention]

[0019] Compared with the prior art, the technology of the present invention fully realizes removable cleaning of the lid to prevent dirt and bacterial growth. The technology of the present invention solves the problem of using both hands to twist the lid, fully realizes the technology of quickly opening the lid with one hand, and is convenient and simple to use. The above-mentioned one or more technical solutions in the screwless vertical lid opening and closing structure for a container according to the embodiment of the present invention have at least one of the following technical effects:

[0020] The present invention uses a lock switch to control the opening and closing of the container lid, which is simple and convenient. A sealing device is also provided, which engages with the opening on the inner wall of the container body to achieve closure, preventing heat from escaping as with the conventional spiral-type lid closure. The provision of a regulating block allows for simple and quick locking of the lock switch, preventing accidental touching or other circumstances that could cause the lock switch to open and result in the water in the container spilling out. [Brief explanation of the drawings]

[0021] In order to more clearly explain the technical solutions in the embodiments of the present invention, the following will briefly describe the drawings that need to be used in the description of the embodiments or prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings based on these drawings without paying creative labor. [Figure 1] 1 is a cross-sectional schematic diagram of the structure of the present invention. [Figure 2] 1 is a cross-sectional schematic diagram I of the lid structure. [Figure 3] 2 is a cross-sectional schematic diagram II of the lid structure. [Figure 4] 3 is a cross-sectional schematic diagram of the lid structure. [Figure 5] 4 is a schematic cross-sectional view of the lid structure. [Figure 6] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, the embodiments of the present invention will be described in detail. The examples of the embodiments are shown in the drawings, and the same or similar reference numerals throughout the drawings represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and are intended to explain the embodiments of the present invention, and should not be understood as limitations of the present invention.

[0023] 1-6, a screwless vertical lid opening and closing structure for a container according to one embodiment of the present invention includes a container body 100 and a lid 200. The lid 200 is provided with a sealing device 300, and the lid 200 is sealably attached to the container body 100 via the sealing device 300. The sealing device 300 includes a base 310 and a deformable elastic sealing member 320 fitted onto the base 310, and the base 310 has a groove that is tightly enclosed by the lower end (i.e., movable end) of the deformable elastic sealing member 320. A pull shaft 210 is provided on the base 310, a lock switch 220 is provided on the cover 200, the lock switch 220 and the pull shaft 210 are connected via a rotor 230, a guide surface 240 is provided inside the cover 200, the rotor 230 and the guide surface 240 are rotatably abutted against each other, an opening 241 is provided in the guide surface 240, one end of the pull shaft 210 is drilled through the opening 241 and connected to the rotor 230, and the other end of the pull shaft 210 is connected to the base 310, the lock switch 220 rotates to rotate the rotor 230, and the rotor 230 moves the pull shaft 210 and the base 310 up or down in the axial direction. A restricting block 400 is further provided on the cover 200, and the restricting block 400 can restrict reversal of the lock switch 220.

[0024] When the base 310 connected to the pull shaft 210 moves upward, the deformable elastic sealing member 320 expands radially and bends outward, engaging with the engaging opening 110 on the inner wall of the container body 100, thereby closing the lid 200 and the container body 100. When the base 310 connected to the pull shaft 210 moves downward, the deformable elastic sealing member 320 resets and detaches from the inner wall of the container body 100, thereby opening the lid 200 and the container body 100.

[0025] Specifically, when closing the lid, lock switch 220 is flipped downward, causing rotor 230 to rotate on guide surface 240, which then moves pull shaft 210 and base 310 axially upward, causing deformable elastic sealing member 320 to be pressed and expand radially outward, engaging with engaging opening 110 on the inner wall of container body 100, thereby realizing closing (one-handed operation) of lid 200 and container body 100. When opening the lid, lock switch 220 is flipped upward, causing rotor 230 to rotate on guide surface 240, which then moves pull shaft 210 and base 310 axially downward, causing deformable elastic sealing member 320 to reset and detach from the inner wall of container body 100, thereby realizing opening (one-handed operation) of lid 200 and container body 100. The cover 200 is further provided with a restricting block 400, which can move back and forth to restrict the reversal of the lock switch 220.

[0026] Furthermore, the present invention provides a lock switch 220 to control the opening and closing of the container lid, which is simple and convenient. Furthermore, a sealing device 300 is provided and engages with the engaging opening 110 on the inner wall of the container body 100 to achieve closure, preventing heat from escaping as with the conventional spiral-type lid closure. The provision of a restricting block 400 allows for simple and quick locking of the lock switch 220, preventing accidental touching and opening of the lock switch 220, which would otherwise cause water in the container to spill out.

[0027] 4, in another embodiment of the present invention, a slide protrusion 221 is provided on the lock switch 220, a slide groove 410 is provided on the bottom of the restriction block 400, and an auxiliary limiting position 250 is provided on the cover 200, the slide protrusion 221 and the slide groove 410 are fitted together, and the restriction block 400 can slide between the lock switch 220 and the auxiliary limiting position 250. When the entire restriction block 400 is located on the lock switch 220, the lock switch 220 can be reversed, and when one end of the restriction block 400 is located on the lock switch 220 and the other end is located on the auxiliary limiting position 250, the lock switch 220 is restricted from being reversed.

[0028] 2-4, the cover 200 has a cavity therein, and the guide surface 240 divides the cavity into two parts (i.e., an upper cavity and a lower cavity). The rotor 230 is located in the upper cavity, the sealing device 300 is located in the lower cavity, and the pull shaft 210 passes through the upper and lower cavities. When the entire restricting block 400 is located at the locking switch 220, the locking switch 220 can rotate the restricting block 400. When one end of the restricting block 400 is located at the locking switch 220 and the other end is located at the auxiliary limiting position 250, the end of the auxiliary limiting position 250 forms a barrier to prevent the restricting block 400 from being rotated, which in turn prevents the locking switch 220 from being rotated. At this time, the slide protrusion 221 and the slide groove 410 should be tightly fitted together.

[0029] As shown in Figures 2-4, the lock switch 220 is provided with a first elastic protrusion 222, and the restricting block 400 is provided with a second elastic protrusion 420 and a third elastic protrusion 430 at the bottom thereof. During movement of the restricting block 400, the first elastic protrusion 222, the second elastic protrusion 420, and the third elastic protrusion 430 are capable of relative deformation, resulting in a change in positional order. As can be seen from Figures 2 and 3, the second elastic protrusion 420 and the third elastic protrusion 430 are both located to the left of the first elastic protrusion 222, which is in the locked state. The first elastic protrusion 222 exerts a restricting effect on the third elastic protrusion 430, maintaining the restricting block 400 in the locked state. When the user applies force to push the restricting block 400 to the right, the second protrusion 420 and the third protrusion 430 are positioned to the right of the first protrusion 222, causing a change in position order. At this time, the lock switch 220 is in the unlocked state, and the first protrusion 222 acts as a restrictor on the second protrusion 420, maintaining the restricting block 400 in the unlocked state.

[0030] The lock switch 220 is provided with a first stopper 223, and the restriction block 400 is provided with a second stopper 440 at its bottom. The first stopper 223 and the second stopper 440 are fitted together to prevent the restriction block 400 and the lock switch 220 from sliding off relative to each other or being touched to open, thereby providing double security.

[0031] A rib 251 is provided at the limiting auxiliary position 250. Specifically, the rib 251 is used to ensure that the restricting block 400 does not fall off and moves smoothly, and also to increase the damping feeling when pushing.

[0032] 3 and 6, in another embodiment of the present invention, a central portion of rotor 230 has a relief portion 231, and one end of pull shaft 210 is inserted into relief portion 231 to connect to rotor 230. Rotor 230 has a first insertion hole 232 extending therethrough, and one end of pull shaft 210 has a second insertion hole 211 extending therethrough. When one end of pull shaft 210 is inserted into relief portion 231, first insertion hole 232 and second insertion hole 211 are aligned with each other, and insertion pins are drilled through first insertion hole 232 and second insertion hole 211 to connect pull shaft 210 to rotor 230. Specifically, a central portion of rotor 230 has relief portion 231, and one end of pull shaft 210 is inserted into relief portion 231 to connect to rotor 230. This connection method is stable and saves space.

[0033] 1-5, in another embodiment of the present invention, rotor 230 is an elastic member, and the bottom and one side of rotor 230 are smoothly arc-shaped. Specifically, the bottom and one side are smoothly arc-shaped, which is advantageous for sliding with guide surface 240, making rotor 230 rotate more smoothly, and making lid 200 open and close more smoothly.

[0034] In another embodiment of the present invention, as shown in FIGS. 1-5 , a spring 260 is fitted onto the pull shaft 210, with one end of the spring 260 abutting against the base 310 and the other end abutting against the guide surface 240. Specifically, the spring 260 is designed to assist resetting. When the pull shaft 210 and the base 310 move upward in the axial direction, the spring 260 is compressed, generating a recovery force. When the lock switch 220 is closed, a force is required and a damping feeling is felt. When the lid is opened, the downward movement of the pull shaft 210 is accelerated, accelerating the contraction of the deformable elastic sealing member 320 and its detachment from the inner wall of the container body 100. At the same time, the lock switch 220 and the edge of the lid 200 are engaged with each other. The lock switch 220 may have an engaging protrusion, an engaging groove on the edge of the lid 200, or the lock switch 220 may have an engaging groove. In another embodiment of the present invention, as shown in Figure 1, a filter mesh 270 is further provided at the bottom of the cover 200. Specifically, the filter mesh 270 is used to filter water-infused tea, such as tea leaves and nutritional products, to achieve solid-liquid separation. [Explanation of symbols]

[0035] 100, container body 110, Arrival gate 200, lid body 210, pull shaft 211, second insertion hole 220, lock switch 221, slide protrusion 222, 1st protrusion 223, First Stopper 230, rotor 231, relief position 232, first insertion hole 240, guide surface 241, aperture 250, limited auxiliary position 251, Rib 260, Spring 270, filtration mesh 300, sealing device 310, base 320, deformable elastic seal 400, Restriction Block 410, slide groove 420, 2nd protrusion 430, 3rd protrusion 440, second stopper.

Claims

1. A screwless vertical lid opening and closing structure for a container, The container includes a container body and a lid, a sealing device is provided on the lid body, the lid body is provided to be able to sealably connect to the container body via the sealing device, the sealing device includes a base and a deformable elastic sealing member provided on the base, a pull shaft is provided on the base, a lock switch is provided on the cover, the lock switch and the pull shaft are connected via a rotor, a guide surface is provided inside the cover, the rotor and the guide surface are rotatably abutted against each other, an opening is provided on the guide surface, one end of the pull shaft is drilled in the opening and connected to the rotor, and the other end of the pull shaft is connected to the base, the lock switch rotates to rotate the rotor, and the rotor moves the pull shaft and the base up or down in the axial direction, and a restricting block is further provided on the cover, which can restrict the lock switch to reverse only after achieving an optimal operating effect; when the base connected to the pull shaft moves upward, the deformable elastic sealing member expands radially and bends outward to engage with an engaging opening on the inner wall of the container body, thereby closing the lid and the container body; and when the base connected to the pull shaft moves downward, the deformable elastic sealing member contracts and detaches from the inner wall of the container body, thereby opening the lid and the container body.

2. a slide protrusion is provided on the lock switch, a slide groove is provided on the bottom of the restriction block, a limiting auxiliary position is provided on the cover, the slide protrusion and the slide groove are fitted together, and the restriction block is slidable between the lock switch and the limiting auxiliary position; When the entire restriction block is located on the lock switch, the lock switch is reversible; 2. The screwless vertical lid opening and closing structure for a container according to claim 1, wherein when one end of the restricting block is located at the lock switch and the other end is located at the limiting auxiliary position, the lock switch is restricted from being reversed.

3. The lock switch is provided with a first elastic protrusion, and the restriction block is provided with a second elastic protrusion and a third elastic protrusion at a bottom thereof.

3. The screwless vertical lid opening and closing structure for a container according to claim 2, wherein the first protrusion, the second protrusion and the third protrusion are capable of relative deformation during movement of the regulating block, causing a change in positional order.

4. The lock switch is provided with a first stopper, and the restriction block is provided with a second stopper at its bottom. The screwless vertical lid opening and closing structure for a container according to claim 3, characterized in that the first stopper and the second stopper are fitted together, thereby preventing the restriction block and the lock switch from sliding off relative to each other.

5. 3. The screwless vertical lid opening and closing structure for a container according to claim 2, wherein the auxiliary limiting position is provided with a rib to ensure that the restricting block does not fall off and moves smoothly.

6. 2. The screwless vertical lid opening and closing structure for a container according to claim 1, wherein the central portion of the rotor has a relief position, and one end of the pull shaft is inserted into the relief position and connected to the rotor.

7. The rotor has a first insertion hole extending therethrough, and one end of the pull shaft has a second insertion hole extending therethrough; 7. The screwless vertical lid opening and closing structure for a container according to claim 6, wherein when one end of the pull shaft is inserted into the relief position, the first insertion hole and the second insertion hole are aligned with each other, and an insertion pin is drilled into the first insertion hole and the second insertion hole to connect the pull shaft and the rotor.

8. 2. The screwless vertical lid opening and closing structure for a container according to claim 1, wherein the bottom edge and one side edge of the rotor are smoothly arc-shaped.

9. 2. The screwless vertical lid opening and closing structure for a container according to claim 1, wherein a spring is fitted onto the pull shaft, one end of the spring abutting against the base and the other end abutting against the guide surface.

10. 2. The screwless vertical lid opening and closing structure for a container according to claim 1, wherein a filtering mesh is further provided at the bottom of the lid body.

Citation Information

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