Threadless container cap

Abstract

To provide a container plug lid without a screw thread, which can be freely opened only by the elastic force of an elastic seal sleeve when opening the container plug. [Solution] The container comprises an outer cover body 1, an inner cover body, and a sealing sleeve 3 sheathed on the outer wall of the inner cover body. The outer cover body 1 is fixedly connected to the inner cover body, and a first gap 81 for accommodating a container opening 8 is formed between the sealing sleeve 3 and the outer cover body 1. A drive assembly that is movable up and down and pushes out the sealing sleeve 3 to expand it radially is installed within the inner cover body, a limiting member is installed within the interlocking body, and an operating member 5 that can lock or unlock the limiting member is installed on the outer cover body 1.

Description

[Technical field]

[0001] THREADLESS CONTAINER CLOSURE FIELD OF THEINVENTION This invention relates to container structures, and more particularly to threadless container closures. [Background technology]

[0002] Current containers are generally sealed with threaded closures or solid rubber stoppers, but threaded closures require tedious rotation to open and close during use, solid rubber stoppers always require the use of additional tools to open, which is time-consuming, and easy-to-open rubber stoppers always have poor sealing properties and limited service life.

[0003] Therefore, the current container lid has good sealing ability but cannot be opened or closed quickly, and although it may be possible to open and close quickly, it has poor sealing ability and poor heat retention and leakage prevention effects.

[0004] In order to solve the above problems, Chinese invention patent CN104803085B discloses a container stopper that can be quickly opened and closed, which includes a cylindrical stopper body, an annular stopper body, and an elastic sealing sleeve, wherein the cylindrical stopper body includes a stopper rod, and the bottom of the stopper rod is provided with a base that can be inserted into or pulled out of the container, the shape and size of the base match the shape and size of the straight part of the container mouth or the smallest cross-sectional part of the container, an annular stopper body is provided above the base, and a bendable elastic sealing sleeve is provided between the annular stopper body and the base, and the annular stopper body and the base can be moved relative to each other along the axial direction of the container into the container under external force to push out the elastic sealing sleeve, and the elastic sealing sleeve can be radially expanded and bent outward to form a sealing sleeve between the inner wall of the container and the outer contour of the base, and the dimension of the outer contour of the sealing sleeve is greater than the dimension of the inner surface of the straight part of the container mouth or the dimension of the inner surface of the smallest cross-sectional part of the container, and the sealing sleeve together with the base forms a sealing layer that can quickly open and close the container. When opening, the external force pushing out the elastic sealing sleeve is released, and the elastic sealing sleeve uses its elastic force to drive the annular plug body to move upward relative to the base, and the elastic sealing sleeve returns to its extended state, allowing the container to be opened quickly.

[0005] Although the container stopper of the above technical solution can be quickly opened and closed, it has an insurmountable defect. When the container stopper needs to close the mouth of a container, due to the space between the cylindrical stopper body and the annular stopper body, the elastic sealing sleeve can expand toward the inner wall of the container and at the same time expand in the opposite direction after being pushed out. As a result, every time it is pushed out, it cannot seal the mouth of the container. When the container stopper needs to be quickly opened, the above technical solution relies on the elastic force of the elastic sealing sleeve itself. However, in reality, the elastic force of the elastic sealing sleeve itself is not enough to lift the annular stopper body, so it is necessary to utilize an upward external force to achieve this. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] China Patent Publication CN104803085B Summary of the Invention [Problem to be solved by the invention]

[0007] The object of the present invention is to provide a threadless container closure, mainly to solve the problem in the prior art that the elastic sealing sleeve cannot expand directionally, and the container closure cannot be freely opened by the elastic force of the elastic sealing sleeve alone when opening it. [Means for solving the problem]

[0008] In order to achieve the above objectives, the technical solutions of the present invention are as follows:

[0009] A threadless container closure includes an outer lid body, an inner lid body, and a seal sleeve mounted on an outer wall of the inner lid body, the outer lid body being fixedly connected to the inner lid body, a first gap for accommodating a container opening is formed between the seal sleeve and the outer lid body, and a drive assembly is installed within the inner lid body, the drive assembly being movable up and down and pushing out the seal sleeve to expand it in a radial direction, the inner lid body including a cylindrical body and a first flange having a top protruding outward, the first flange being fixedly connected to the inner wall of the outer lid body, and the seal sleeve being mounted on the outer wall of the cylindrical body, the drive assembly includes a drive plate, an interlocking member, and a base, the drive plate is provided with a slide rod, the first flange is provided with a slide rod hole through which the slide rod passes, the interlocking member includes an interlocking body that can be inserted into the cylinder of the inner cover body, and a second flange having a top protruding outward, the drive plate is provided on the underside of the first flange, the slide rod passes through the slide rod hole and is fixedly connected to the second flange, the base is provided on the bottom of the interlocking body, and the bottom of the sealing sleeve contacts the base, A restricting member is provided within the interlocking body, and an operating member capable of locking or unlocking the restricting member is provided on the outer lid body.

[0010] Two limiting members are installed in the interlocking body, each limiting member includes two limiting rods installed opposite to each other, and protruding positioning blocks are installed at the opposite positions of the upper ends of the two limiting rods, and a second gap is formed between the two positioning blocks; Two mounting holes are symmetrically installed on the outer wall of the outer cover body, and an operating member is installed in the mounting holes. The operating member includes a button and a first elastic return member. The button includes a pressing portion fixedly connected in order from the outside to the inside, a release portion extending toward the inside of the outer cover body and having a width smaller than the second gap, and a locking portion having a width larger than the second gap.

[0011] A fixing member is installed within the inner cover body, and a second elastic return member is installed between the fixing member and the bottom of the interlocking body.

[0012] The base is provided with an engaging portion, the interlocking body has an upward recess at its bottom, and the inner wall of the recess is provided with an engaging opening for receiving the engaging portion.

[0013] A through hole is installed at the same position on the base and the bottom of the interlocking body, and the two penetrate to form an exhaust hole. An exhaust rod is further installed, the exhaust rod includes a rod body and a rod cap having a radius larger than that of the rod body and installed on the upper end of the rod body, the upper end of the rod cap abuts against the fixed member, and the lower end of the rod body is installed within the exhaust hole. A third elastic return member is installed outside the rod body, the upper end of the third elastic return member abuts against the lower end of the rod cap, and the lower end of the third elastic return member abuts against the bottom of the interlocking body.

[0014] An inwardly protruding bottom flange is provided at the bottom of the sealing sleeve, and the bottom flange contacts the base.

[0015] At least two slide rods are installed on the driving plate, the first flange is provided with slide rod holes in a number equal to the number of the slide rods, hooks are installed at the tops of the slide rods, and the second flange is provided with locking holes for fixing the hooks in a number equal to the number of the slide rods. Effect of the Invention

[0016] According to the above technical solutions, the advantages of the present invention are as follows:

[0017] 1. When the container cap covers the container mouth, the container opening presses the driving plate, which moves upward to drive the interlocking body and the base to move upward, and the base drives the bottom of the sealing sleeve to move upward, pushing out the sealing sleeve and expanding the sealing sleeve radially outward to close the container mouth, and the container opening is used to drive the closing of the cap, which is simple in operation. 2. The bottom flange of the sealing sleeve can ensure that the sealing sleeve can expand radially outward after being pushed out. 3. The second elastic return member between the fixing member and the bottom of the interlocking body can ensure that the sealing sleeve can fully return to its initial state when the container cap is opened, and the cap can be smoothly pulled out. [Brief description of the drawings]

[0018] [Figure 1] FIG. 2 is a structural schematic diagram showing the case where the container opening of the present invention is closed. [Diagram 2] FIG. 2 is a structural schematic diagram of a drive assembly of the present invention; [Diagram 3] FIG. 2 is an exploded structural schematic diagram of the present invention. [Figure 4] FIG. 4 is a structural schematic diagram of a drive assembly of the present invention connected to an inner cover and a sealing sleeve. [Diagram 5] FIG. 2 is a schematic diagram of the structure of the container of the present invention after it has been opened from the opening portion. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] The invention will now be further described with reference to the drawings, which are for illustrative purposes only and are not to be construed as limitations on this patent.

[0020] In order to more concisely describe the present embodiment, some components that are well known to those skilled in the art but are not related to the main content of the present invention are omitted in the drawings or description. Also, for the convenience of description, some components in the drawings may be omitted, enlarged, or reduced, but do not represent the actual size or overall structure of the product.

[0021] The present invention discloses a threadless container closure, which, as shown in FIG. 1, includes an outer closure body 1, an inner closure body 2, and a sealing sleeve 3 sheathed on the outer wall of the inner closure body 2, the outer closure body 1 is fixedly connected to the inner closure body 2, a first gap 81 for accommodating a container opening 8 is formed between the sealing sleeve 3 and the outer closure body 1, and the closure is inserted into the container opening 8 through the first gap 81.

[0022] Referring to Figures 4 and 5, a drive assembly is installed within the inner cover body 2, which is movable up and down and pushes out the sealing sleeve 3 to expand it radially. As shown in Figures 3 and 4, the inner cover body 2 includes a cylindrical body 21 and a first flange 22 whose top protrudes outward, the first flange 22 is fixedly connected to the inner wall of the outer cover body 1, and the sealing sleeve 3 is sheathed on the outer wall of the cylindrical body 21.

[0023] As shown in FIG. 2, the drive assembly includes a drive plate 41, an interlocking member, and a base 44, a slide rod 411 is installed in the drive plate 41, a slide rod hole 23 through which the slide rod 411 passes is installed in the first flange 22, the interlocking member includes an interlocking body 43 that can be inserted into the cylinder 21 of the inner cover body, and a second flange 42 whose top protrudes outward, and the slide rod 411 of the drive plate 41 passes through the slide rod hole 23 from the underside of the first flange 22 and is fixedly connected to the second flange 42, thus, when the drive plate 41 moves upward, it drives the interlocking member to move upward, and when the drive plate 41 moves downward, it drives the interlocking member to move downward.

[0024] Preferably, as shown in Figures 2 and 3, at least two slide rods 411 are installed on the driving plate 41, the first flange 22 is provided with slide rod holes 23 in the same number as the slide rods 411, hooks 412 are installed at the tops of the slide rods 411, and the second flange 42 is provided with locking holes 421 for fixing the hooks 412 in the same number as the slide rods 411.

[0025] The base 44 is installed at the bottom of the interlocking body 43, and the bottom of the sealing sleeve 3 contacts the base 44, and as shown in Fig. 1, when the driving plate 41 is pushed by the insertion of the container opening 8 and moves upward, it drives the interlocking member to move upward, and the base 44 pushes out the bottom of the sealing sleeve 3, causing the sealing sleeve 3 to expand radially outward and downward of the container opening 8, so that the plug cap cannot be pulled out. Preferably, the bottom of the sealing sleeve 3 is provided with a bottom flange 31 protruding inward, which contacts the base 44, and thus it is possible to ensure that the bottom of the sealing sleeve 3 expands radially outward when pushed out.

[0026] As shown in FIG. 2, a mating portion 441 is provided on the base 44, an upward recess is formed on the bottom of the interlocking body 43, and a mating opening 431 for receiving the mating portion 441 is provided on the inner wall of the recess.

[0027] Furthermore, as shown in FIG. 3, a fixed member 61 is installed within the inner cover body 2, and a second elastic return member 62 is installed between the fixed member 61 and the bottom of the interlocking body 43, thereby ensuring that the sealing sleeve 3 can quickly and sufficiently return to its initial state after the base 44 releases its extrusion onto the sealing sleeve 3.

[0028] In order for the cap to tightly close the container or for the cap to be pulled out from the container, a restricting member is provided within the interlocking body 43, as shown in FIG. 3, and an operating member 5 capable of locking or unlocking the restricting member is provided on the outer cap body 1.

[0029] As shown in FIG. 2, two limiting members are installed within the interlocking body 43, and each limiting member includes two limiting rods 45 installed opposite each other. Protruding positioning blocks 46 are respectively installed at the opposing positions of the upper ends of the two limiting rods 45, and a second gap 47 is present between the two positioning blocks 46.

[0030] Correspondingly, as shown in FIG. 3, two mounting holes 11 are symmetrically installed on the outer wall of the outer cover body 1, and the operating member 5 is installed in the mounting holes 11. The operating member 5 includes a button and a first elastic return member 52, and the button includes a pressing portion 51 fixedly connected in order from the outside to the inside, a release portion 53 extending toward the inside of the outer cover body and having a width smaller than the second gap 47, and a locking portion 54 having a width larger than the second gap 47.

[0031] When the operating member 5 is in its initial state, the locking portion 54 is positioned above the restricting member, and as shown in FIG. 1, when the lid is inserted into the container opening 8 to close it, the container opening 8 moves upward against the driving plate 41, and the two opposing positioning blocks 46 move upward and are pushed apart by the locking portion 54 at the second gap 47 and abut against the upper surface of the locking portion 54, and thus the lid blocks the mouth of the container and maintains the closed state.

[0032] As shown in Figure 5, when it is necessary to pull out the cap to open the container opening 8, the button pressing portion 51 of the operating member 5 is pushed inward, the locking portion 54 moves inward, the release portion 53 moves to the position of the second gap 47, the positioning block loses support, and due to the elastic force of the second elastic return member 62, the interlocking member moves downward and the base 44 also moves downward, the pushing against the sealing sleeve 3 is released, the sealing sleeve 3 returns to its initial state, the cap opens and can be pulled out from the mouth of the container, and the first elastic return member 52 presses the button to return to its initial state.

[0033] A through hole is installed at the same position on the bottom of the base 44 and the interlocking body 43, and the two penetrate to form an exhaust hole. An exhaust rod 7 is further installed in the exhaust rod 7. The exhaust rod 7 includes a rod body 72 and a rod cap 73 whose radius is larger than that of the rod body 72 and is installed on its upper end. The upper end of the rod cap 73 abuts against the fixed member 61, and the lower end of the rod body 72 is installed within the exhaust hole. A third elastic return member 71 is installed on the outside of the rod body 72, and the upper end of the third elastic return member 71 abuts against the lower end of the rod cap 73, and the lower end of the third elastic return member 71 abuts against the bottom of the interlocking body 43.

[0034] The first elastic return member 52, the second elastic return member 62, and the third elastic return member 71 generally use return springs.

[0035] The above content is merely a preferred embodiment of the present invention, and is not used to limit the scope of the present invention. That is, any equivalent changes and modifications made based on the content of the claims of the present invention should be considered as within the technical scope of the present invention. [Explanation of symbols]

[0036] 1-outer cover body, 11-mounting hole, 2-inner cover body, 21-cylinder body, 22-first flange, 23-slide rod hole, 3-seal sleeve, 31-bottom flange, 41-drive plate, 411-slide rod, 412-hook, 42-second flange, 421-locking port, 43-linking body, 431-locking port, 44-base, 441-locking portion, 45-limiting rod, 46-positioning block, 47-second gap, 5-operating member, 51-pressing portion, 52-first elastic return member, 53-releasing portion, 54-locking portion, 61-fixing member, 62-second elastic return member, 7-exhaust rod, 71-third elastic return member, 72-rod body, 73-rod cap, 8-container opening, 81-first gap.

Claims

[Claim 1] A threadless container closure includes an outer lid body (1), an inner lid body (2), and a sealing sleeve (3) fitted to the outer wall of the inner lid body (2), the outer lid body (1) is fixedly connected to the inner lid body (2), a first gap (81) for accommodating a container opening (8) is formed between the sealing sleeve (3) and the outer lid body (1), and a drive assembly is installed within the inner lid body (2) that is movable up and down and pushes out the sealing sleeve (3) to expand it in a radial direction, the inner lid body (2) includes a cylindrical body (21) and a first flange (22) whose top protrudes outward, the first flange (22) is fixedly connected to the inner wall of the outer lid body (1), and the sealing sleeve (3) is fitted to the outer wall of the cylindrical body (21); The drive assembly includes a drive plate (41), an interlocking member, and a base (44), a slide rod (411) is installed on the drive plate (41), a slide rod hole (23) is installed on the first flange (22) through which the slide rod (411) passes, the interlocking member includes an interlocking body (43) that can be inserted into the cylinder (21) of the inner cover body, and a second flange (42) whose top protrudes outward, the drive plate (41) is installed on the underside of the first flange (22), the slide rod (411) passes through the slide rod hole (23) and is fixedly connected to the second flange (42), the base (44) is installed on the bottom of the interlocking body (43), and the bottom of the sealing sleeve (3) contacts the base (44), A restricting member is provided within the interlocking body (43), and an operating member (5) capable of locking or unlocking the restricting member is provided on the outer lid body (1); Two limiting members are installed in the interlocking body (43), each limiting member includes two limiting rods (45) installed opposite to each other, protruding positioning blocks (46) are installed at the upper ends of the two limiting rods (45) at opposing positions, and a second gap (47) is formed between the two positioning blocks (46); Two mounting holes (11) are symmetrically provided on the outer wall of the outer cover body (1), and an operating member (5) is provided in the mounting hole (11). The operating member (5) includes a button and a first elastic return member (52). The button includes a pressing portion (51) fixedly connected in order from the outside to the inside, a release portion (53) extending toward the inside of the outer cover body and having a width smaller than the second gap (47), and a locking portion (54) having a width larger than the second gap (47). A fixing member (61) is installed inside the inner lid body (2), and a second elastic return member (62) is installed between the fixing member (61) and the bottom of the interlocking body (43). The base (44) is provided with an engaging portion (441), the bottom of the interlocking body (43) has an upward recess, and the inner wall of the recess has an engaging opening (431) for receiving the engaging portion (441); A through hole is provided at the same position on the bottom of the base (44) and the interlocking body (43), and the two penetrate to form an exhaust hole. An exhaust rod (7) is further provided. The exhaust rod (7) includes a rod body (72) and a rod cap (73) whose radius is larger than that of the rod body (72) and is provided at its upper end. The upper end of the rod cap (73) abuts against the fixed member (61). The lower end of the rod body (72) is provided within the exhaust hole. A third elastic return member (71) is fitted on the outside of the rod body (72). The upper end of the third elastic return member (71) abuts against the lower end of the rod cap (73), and the lower end abuts against the bottom of the interlocking body (43). The seal sleeve (3) has a bottom flange (31) protruding inwardly at its bottom, the bottom flange (31) contacting a base (44); A threadless container closure, characterized in that at least two slide rods (411) are provided on the drive plate (41), slide rod holes (23) are provided in the first flange (22) in a number equal to the number of the slide rods (411), hooks (412) are provided at the tops of the slide rods (411), and locking holes (421) for fixing the hooks (412) are provided in the second flange (42) in a number equal to the number of the slide rods (411).

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