A threadless container plug

Abstract

The present invention relates to a threadless container plug, which comprises an outer cover body, an inner cover body and a sealing ring sleeved on the outer wall of the inner cover body. The outer cover body is fixedly connected to the inner cover body, and a first gap for accommodating the mouth part of the container is formed between the sealing ring and the outer cover body. A driving assembly capable of moving up and down and squeezing the sealing ring to expand radially is arranged inside the inner cover body. A limiting member is arranged inside the linkage body, and an operating member capable of locking or releasing the limiting member is arranged on the outer cover body. The present invention mainly solves the problems in the prior art that the elastic sealing sleeve cannot expand directionally, and the container plug cannot be opened smoothly only by relying on the elastic force of the elastic sealing sleeve when the container plug is opened.

Description

Technical Field

[0001] The present invention relates to a container structure, in particular to a threadless container plug. Background Art

[0002] Existing containers are generally sealed with threaded caps or solid rubber stoppers. For threaded caps, they require cumbersome rotation to open and close during use; solid rubber stoppers often need other auxiliary tools to open, which takes a relatively long time, and rubber stoppers that are easy to open often have poor sealing performance and limited service life.

[0003] Therefore, existing container caps with good sealing performance cannot be quickly opened and closed; those that may be quickly opened or closed have poor sealing performance and poor heat preservation and leakage prevention effects.

[0004] To solve the above problems, Chinese invention patent CN104803085B discloses a container plug that can be quickly opened and closed. It includes a columnar plug body, an annular plug body and an elastic sealing sleeve. The columnar plug body includes a plug rod, and a base that can be inserted into or pulled out of the container is provided at the bottom of the plug rod. The shape and size of the base match the shape and size of the straight section of the container mouth or the minimum cross-section of the container. An annular plug body is provided above the base, and an elastically deformable elastic sealing sleeve is provided between the annular plug body and the base. The annular plug body and the base can move relative to each other along the axial direction of the container in the container under the action of an external force to squeeze the elastic sealing sleeve, so that the elastic sealing sleeve expands radially and bends outward to form a sealing ring between the inner wall of the container and the outer contour of the base. The outer contour size of the sealing ring is larger than the inner surface size of the straight section of the container mouth or the inner surface size of the minimum cross-section of the container. The sealing ring together with the base forms a sealing layer for realizing the quick closing of the container. When opening, the external force squeezing the elastic sealing sleeve is removed, and the elastic sealing sleeve drives the annular plug body to move upward relative to the base under the action of elastic force, and the elastic sealing sleeve returns to a straight state, realizing the quick opening of the container.

[0005] Although the container plug of the above technical solution can be quickly opened or closed, there are some insurmountable defects. When the container plug needs to close the container mouth, the space between the columnar plug column and the annular plug body allows the elastic sealing sleeve to expand either towards the inner wall of the container or in the opposite direction after being squeezed, resulting in not every squeeze being able to seal the container mouth; when the container plug needs to be quickly opened, the above technical solution relies on the elastic force of the elastic sealing sleeve itself, but in reality, the elastic force of the elastic sealing sleeve itself is not sufficient to lift the annular plug body, and an upward external force must be applied to achieve it. Summary of the Invention

[0006] The object of the present invention is to provide a threadless container plug, mainly solving the problems in the prior art that the elastic sealing sleeve cannot expand directionally, and the container plug cannot be opened smoothly only relying on the elastic force of the elastic sealing sleeve when the container is opened.

[0007] To achieve the above object, the technical solution of the present invention is:

[0008] A threadless container plug, which comprises an outer cover body, an inner cover body and a sealing ring sleeved on the outer wall of the inner cover body. The outer cover body is fixedly connected with the inner cover body, and a first gap for accommodating the mouth part of the container is formed between the sealing ring and the outer cover body; a driving assembly capable of moving up and down and extruding the sealing ring to expand radially is arranged in the inner cover body; characterized in that: the inner cover body comprises a cylinder body and a first flange protruding outward from the top thereof, the first flange is fixedly connected with the inner wall of the outer cover body, and the sealing ring is sleeved on the outer wall of the cylinder body;

[0009] The driving assembly comprises a driving plate, a linkage and a base. A sliding rod is arranged on the driving plate, and a sliding rod hole for the sliding rod to pass through is arranged on the first flange; the linkage comprises a linkage body capable of being inserted into the cylinder body of the inner cover body and a second flange protruding outward from the top thereof; the driving plate is arranged on the lower surface of the first flange, and the sliding rod passes through the sliding rod hole and is fixedly connected with the second flange; the base is arranged at the bottom of the linkage body, and the bottom of the sealing ring contacts the base;

[0010] A limiting member is arranged in the linkage body, and an operating member capable of locking or releasing the limiting member is arranged on the outer cover body.

[0011] Two limiting members are arranged in the linkage body. Each limiting member comprises two limiting rods arranged oppositely. Convex limiting blocks are arranged at the relative positions of the upper ends of the two limiting rods, and a second gap is left between the two limiting blocks;

[0012] Two mounting holes are symmetrically arranged on the outer wall of the outer cover body. The operating member is arranged in the mounting holes. The operating member comprises a button and a first elastic reset member. The button comprises a pressing part fixedly connected in sequence from outside to inside, a releasing part extending into the interior of the outer cover body and having a width smaller than the second gap, and a locking part having a width larger than the second gap.

[0013] A fixing member is arranged in the inner cover body, and a second elastic reset member is arranged between the fixing member and the bottom of the linkage body.

[0014] A clamping part is arranged on the base, there is an upward concave part at the bottom of the linkage body, and a clamping interface for receiving the clamping part is arranged on the inner wall of the concave part.

[0015] Through holes are arranged at the same positions of the base and the bottom of the linkage body, and the two are communicated to form an exhaust hole. An exhaust rod is also arranged. The exhaust rod comprises a rod body and a rod cap having a radius larger than the rod body and arranged at the upper end of the rod body. The upper end of the rod cap abuts against the fixing member, the lower end of the rod body is arranged in the exhaust hole, a third elastic reset member is sleeved on the rod body, the upper end of the third elastic reset member abuts against the lower end of the rod cap, and its lower end abuts against the bottom of the linkage body.

[0016] The bottom of the sealing ring is provided with an inwardly convex bottom flange, and the bottom flange contacts the base.

[0017] The driving plate is provided with at least two sliding rods, and the first flange is provided with sliding rod holes equal in number to the sliding rods; hooks are provided at the tops of the sliding rods, and the second flange is provided with clamping openings for fixing the hooks equal in number to the sliding rods.

[0018] By means of the above technical solutions, the advantages of the present invention are as follows:

[0019] 1. The container plug cover is covered towards the container opening, the container opening presses against the driving plate, the driving plate moves upward, driving the linkage body and the base to move upward, the base drives the bottom of the sealing sleeve to move upward, squeezing the sealing sleeve, causing the sealing sleeve to expand radially outward, sealing the container opening, and using the container opening to drive the plug cover to seal, with simple operation; 2. The bottom flange of the sealing sleeve ensures that the sealing sleeve can expand radially outward after being squeezed; 3. The second elastic reset member between the fixing member and the bottom of the linkage body ensures that when the container lid plug is opened, the sealing sleeve fully returns to its initial state, enabling the plug cover to be smoothly pulled out. Description of the Drawings

[0020] Figure 1 It is a schematic structural view of the structure for closing the container opening of the invention.

[0021] Figure 2 It is a schematic structural view of the driving component of the present invention.

[0022] Figure 3 It is a schematic exploded view of the present invention.

[0023] Figure 4 It is a schematic structural view of the connection between the driving component, the inner cover body and the sealing ring of the present invention.

[0024] Figure 5 It is a schematic structural view of the present invention after being opened from the container opening.

[0025] 1 - Outer cover body; 11 - Mounting hole; 2 - Inner cover body; 21 - Cylinder body; 22 - First flange; 23 - Sliding rod hole; 3 - Sealing sleeve; 31 - Bottom flange; 41 - Driving plate; 411 - Sliding rod; 412 - Hook; 42 - Second flange; 421 - Clamping opening; 43 - Linkage body; 431 - Clamping interface; 44 - Base; 441 - Clamping portion; 45 - Limiting rod; 46 - Limiting block; 47 - Second gap; 5 - Operating member; 51 - Pressing portion; 52 - First elastic reset member; 53 - Release portion; 54 - Locking portion; 61 - Fixing member; 62 - Second elastic reset member; 7 - Exhaust rod; 71 - Third elastic reset member; 72 - Rod body; 73 - Rod cap; 8 - Container opening; 81 - First gap. Detailed Embodiments

[0026] The present invention will be further described below with reference to the accompanying drawings. The accompanying drawings are only for illustrative purposes and should not be construed as limiting the patent.

[0027] To describe this embodiment more concisely, some components that are well-known to those skilled in the art but are not relevant to the main content of this creation will be omitted in the drawings or description. Additionally, for the sake of clarity, some components in the drawings will be omitted, enlarged, or reduced, but this does not represent the actual size or entire structure of the product.

[0028] The present invention discloses a threadless container plug, as Figure 1 shown, which includes an outer cover body 1, an inner cover body 2, and a sealing sleeve 3 sleeved on the outer wall of the inner cover body 2. The outer cover body 1 is fixedly connected to the inner cover body 2. A first gap 81 for accommodating the container mouth 8 is formed between the sealing sleeve 3 and the outer cover body 1, and the plug is inserted into the container mouth 8 through this first gap 81.

[0029] Combined with Figure 4 、 Figure 5 , a driving assembly capable of moving up and down and squeezing the sealing sleeve 3 to expand radially is arranged inside the inner cover body 2; Figure 3 、 Figure 4 shown, the inner cover body 2 includes a cylinder body 21 and a first flange 22 protruding outward from its top. The first flange 22 is fixedly connected to the inner wall of the outer cover body 1, and the sealing sleeve 3 is sleeved on the outer wall of the cylinder body 21.

[0030] As Figure 2 shown, the driving assembly includes a driving plate 41, a linkage member, and a base 44. A slide rod 411 is arranged on the driving plate 41, and the first flange 22 is provided with a slide rod hole 23 for the slide rod 411 to pass through; the linkage member includes a linkage body 43 that can be inserted into the cylinder body 21 of the inner cover body and a second flange 42 protruding outward from its top; the slide rod 411 of the driving plate 41 passes through the slide rod hole 23 from the lower surface of the first flange 22 and is fixedly connected to the second flange 42. In this way, when the driving plate 41 moves upward, it drives the linkage member to move upward, and when the driving plate 41 moves downward, it drives the linkage member to move downward.

[0031] Preferably, as Figure 2 、 Figure 3 shown, the driving plate 41 is provided with at least two slide rods 411, and the first flange 22 is provided with slide rod holes 23 equal in number to the slide rods 411; a hook 412 is arranged at the top of the slide rod 411, and the second flange 42 is provided with a bayonet 421 for fixing the hook 412 equal in number to the slide rods 411.

[0032] The base 44 is arranged at the bottom of the linkage body 43, and the bottom of the sealing sleeve 3 contacts the base 44; as Figure 1As shown in the figure, when the driving plate 41 moves upward due to the insertion of the container mouth 8, it drives the linkage member to move upward. The base 44 presses against the bottom of the sealing sleeve 3, causing the sealing sleeve 3 to expand radially outward and squeeze the lower part of the container mouth 8, so that the plug cover cannot be pulled out. Preferably, the bottom of the sealing sleeve 3 is provided with an inwardly convex bottom flange 31, and the bottom flange 31 contacts the base 44, which can ensure that the bottom of the sealing sleeve 3 expands radially outward when being squeezed.

[0033] As Figure 2 shown in the figure, the base 44 is provided with a clamping portion 441. The bottom of the linkage body 43 has an upward recess, and a clamping interface 431 for receiving the clamping portion 441 is provided on the inner wall of the recess.

[0034] Furthermore, as Figure 3 shown in the figure, a fixing member 61 is provided inside the inner cover body 2, and a second elastic reset member 62 is provided between the fixing member 61 and the bottom of the linkage body 43, which can ensure that after the base 44 releases the extrusion of the sealing sleeve 3, the sealing sleeve 3 can quickly and fully return to its initial state.

[0035] To enable the plug cover to seal the container well or be pulled out from the container, as Figure 3 shown in the figure, a limiting member is provided inside the linkage body 43, and the outer cover body 1 is provided with an operating member 5 that can lock or release the limiting member.

[0036] As Figure 2 shown in the figure, two limiting members are provided inside the linkage body 43. Each limiting member includes two oppositely arranged limiting rods 45. Protruding limiting blocks 46 are provided at the relative positions of the upper ends of the two limiting rods 45, and a second gap 47 is left between the two limiting blocks 46.

[0037] Correspondingly, as Figure 3 shown in the figure, two mounting holes 11 are symmetrically provided on the outer wall of the outer cover body 1. The operating member 5 is arranged in the mounting holes 11. The operating member 5 includes a button and a first elastic reset member 52. The button includes a pressing portion 51 fixedly connected in sequence from the outside to the inside, a releasing portion 53 extending into 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.

[0038] In the initial state of the operating member 5, the locking portion 54 is located above the limiting member. As Figure 1 shown in the figure, when the plug cover is inserted and intends to seal the container mouth 8, the container mouth 8 presses the driving plate 41 upward. The two opposite limiting blocks 46 move upward and are pushed open by the locking portion 54 at the second gap 47 and rest on the upper surface of the locking portion 54, so that the plug cover plugs the container mouth and remains in a closed state.

[0039] As Figure 5As shown in the figure, when it is necessary to pull out the plug to open the container opening 8, the pressing part 51 of the button of the operating part 5 is squeezed inward, the locking part 54 moves inward, the releasing part 53 moves to the position of the second gap 47, the limiting block loses its support, and under the elastic force of the second elastic reset part 62, the linkage moves downward, and the base 44 also moves downward, relieving the extrusion of the sealing sleeve 3. The sealing sleeve 3 returns to its initial state, the plug is opened, and can be pulled out from the container opening. The first elastic reset part 52 pushes the button back to its initial state.

[0040] Through holes are provided at the same positions at the bottoms of the base 44 and the linkage body 43, and the two are connected to form an exhaust hole. An exhaust rod 7 is also provided. The exhaust rod 7 includes a rod body 72 and a rod cap 73 with a radius larger than that of the rod body 72 and provided at its upper end. The upper end of the rod cap 73 abuts against the fixing part 61, the lower end of the rod body 72 is arranged in the exhaust hole, a third elastic reset part 71 is sleeved outside the rod body 72, the upper end of the third elastic reset part 71 abuts against the lower end of the rod cap 73, and the lower end of the third reset spring 71 abuts against the bottom of the linkage body 43.

[0041] The first elastic reset part 52, the second elastic reset part 62 and the third elastic reset part 71 generally use reset springs.

[0042] The above is only the preferred embodiment of the present invention, and is not used to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the content of the patent application scope of the present invention should fall within the technical scope of the present invention.

Claims

1. A threadless container stopper, which comprises an outer cover body (1), an inner cover body (2) and a sealing sleeve (3) sleeved on the outer wall of the inner cover body (2). The outer cover body (1) is fixedly connected to the inner cover body (2), and a first gap (81) for accommodating the container opening (8) is formed between the sealing sleeve (3) and the outer cover body (1); a driving assembly capable of moving up and down and squeezing the sealing sleeve (3) to expand radially is arranged inside the inner cover body (2); and it is characterized in that: The inner cover body (2) includes a cylinder body (21) and a first flange (22) protruding outward from its top. The first flange (22) is fixedly connected to the inner wall of the outer cover body (1), and the sealing sleeve (3) is sleeved on the outer wall of the cylinder body (21). The driving assembly includes a driving plate (41), a linkage member, and a base (44). A sliding rod (411) is provided on the driving plate (41), and a sliding rod hole (23) for the sliding rod (411) to pass through is provided on the first flange (22). The linkage member includes a linkage body (43) that can be inserted into the cylinder body (21) of the inner cover body and a second flange (42) protruding outward from its top. The driving plate (41) is arranged on the lower surface of the first flange (22), and the sliding rod (411) passes through the sliding rod hole (23) and is fixedly connected to the second flange (42). The base (44) is arranged at the bottom of the linkage body (43), and the bottom of the sealing sleeve (3) contacts the base (44). A limiting member is arranged inside the linkage body (43), and an operating member (5) for locking or releasing the limiting member is arranged on the outer cover body (1). Two limiting members are arranged inside the linkage body (43), and each limiting member includes two limiting rods (45) arranged opposite to each other. Limiting blocks (46) protrude at the relative positions of the upper ends of the two limiting rods (45), and a second gap (47) is left between the two limiting blocks (46). Two mounting holes (11) are symmetrically arranged on the outer wall of the outer cover body (1). The operating member (5) is arranged in the mounting holes (11). The operating member (5) includes a button and a first elastic reset member (52). The button includes a pressing portion (51) fixedly connected in sequence from outside to inside, a releasing portion (53) extending into 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). The bottom of the sealing sleeve (3) is provided with an inwardly convex bottom flange (31), and the bottom flange (31) contacts the base (44).

2. The threadless container plug according to claim 1, wherein: A fixing member (61) is arranged inside the inner cover body (2), and a second elastic reset member (62) is arranged between the fixing member (61) and the bottom of the linkage body (43).

3. The threadless container plug according to claim 2, characterized in that: A clamping portion (441) is arranged on the base (44), and there is an upward recess at the bottom of the linkage body (43). A clamping interface (431) for receiving the clamping portion (441) is arranged on the inner wall of the recess.

4. The threadless container plug according to claim 3, characterized in that: Through holes are arranged at the same positions at the bottom of the base (44) and the bottom of the linkage body (43), and the two are communicated to form an exhaust hole. An exhaust rod (7) is also arranged. The exhaust rod (7) includes a rod body (72) and a rod cap (73) having a radius larger than the radius of the rod body (72) and arranged at its upper end. The upper end of the rod cap (73) abuts against the fixing member (61), the lower end of the rod body (72) is arranged in the exhaust hole, a third elastic reset member (71) is sleeved on the rod body (72), the upper end of the third elastic reset member (71) abuts against the lower end of the rod cap (73), and its lower end abuts against the bottom of the linkage body (43).

5. The threadless container plug according to claim 1, characterized in that: The driving board (41) is provided with at least two sliding rods (411), and the first flange (22) is provided with sliding rod holes (23) equal in number to the sliding rods (411); a hook (412) is arranged at the top of the sliding rod (411), and the second flange (42) is provided with bayonets (421) for fixing the hooks (412) equal in number to the sliding rods (411).

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