A container stopper structure
By designing the plug's insertion part and elastic rotating rod in the plug structure, the problem of plug slippage was solved, achieving a balance between sealing and easy disassembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING ECOM BIOMEDICAL TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-30
AI Technical Summary
Existing stoppers tend to slip after being inserted into the bottle opening, making them difficult to remove, especially when the seal is good.
A plug structure was designed, comprising a plug body, a insert, and a rotating rod. The plug body is opened by inserting the insert part into the insertion hole, and the plug is easily disassembled by the cooperation of the elastic rotating rod and the baffle.
It improves the sealing performance of the cap and makes it easier to remove, avoiding slippage during removal and making the operation smoother.
Smart Images

Figure CN224428482U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stopper technology, and more specifically, to a stopper structure for a container. Background Technology
[0002] When flasks used as laboratory equipment contain liquid, they need to be sealed with stoppers at the mouth. However, the current stoppers are difficult to remove once inserted into the mouth. That is, when the stopper is inserted too deeply, with only a small portion of it protruding from the mouth, or when it is inserted too tightly, the stopper may slip when the operator tries to remove it, making extraction difficult. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a stopper structure for a container that improves sealing performance while making the stopper easy to remove.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a container stopper structure, comprising a container body, an opening at the top of the container body, a stopper detachably mounted on the opening, the stopper comprising a stopper body and a insert, the stopper body being able to be inserted into the opening to close the opening, the stopper body having an insertion hole, the insert being able to be inserted into the insertion hole, fixed rods mounted on both sides of the insert, the fixed rods being hinged to rotating rods, the rotating rod comprising a rod body, the rod body extending from the inner wall of the insert to the outer wall of the insert, a spring abutting between the two rod bodies; a baffle plate fixedly mounted at the bottom of the rotating rod, the baffle plate and the rod body being respectively located on both sides of the rotating rod, the baffle plate being able to extend under the stopper body, the baffle plate being able to move along the radial direction of the stopper body so that the baffle plate moves upward to abut against the bottom surface of the stopper body.
[0005] The present invention is further configured such that the insert has a second channel, the first rod passes through the second channel, and the first rod can move along the axial direction of the second channel.
[0006] The present invention is further configured such that the insert is equipped with a support base, the support base includes a support cylinder, the support cylinder is located between the two rods, and the support cylinder is equipped with a spring, the two ends of the spring extending out of the axial ends of the support cylinder.
[0007] The present invention is further configured such that the insert has a boss located above the rod.
[0008] The present invention is further configured such that the rotating rod includes a second rod body, the second rod body is hinged to the fixed rod, and the first rod body is located at one end of the length direction of the second rod body.
[0009] The present invention is further configured such that the rotating rod includes a rod body three on the side of the rod body three away from the rod body one, and a baffle is fixedly installed on the rod body three.
[0010] The present invention is further configured such that the rotating rod is made of an elastic material.
[0011] The present invention is further configured such that the insert tube has an insertion part, the insertion part is inserted into the insertion hole, the insertion hole is a conical hole, and the insertion part is a conical shape that matches the insertion hole.
[0012] The present invention is further configured such that the bottom of the plug body is conical.
[0013] In summary, this utility model has the following beneficial effects:
[0014] During the insertion process, the plug body is opened by inserting the connector into the insertion hole, allowing it to fit tightly against the inner wall of the conical hole at the opening, thus improving the sealing effect. Simultaneously, pressing down on both sides of the rod causes the two baffles to move away from each other, extending beneath the plug body. Pulling up the boss then pulls out the insert and simultaneously removes the plug body. This solves the problem of difficult plug body removal and prevents slippage during extraction. Attached Figure Description
[0015] Figure 1 This is a cross-sectional view of an embodiment;
[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0017] Figure 3 This is a cross-sectional view of the fixing rod in the embodiment.
[0018] Reference numerals: Container body 1, Opening 11, Plug body 2, Insertion hole 21, Insert cylinder 3, Countersunk hole 31, Insertion part 32, Channel 1 321, Boss 33, Channel 2 34, Fixing rod 4, Extension plate 41, Through hole 411, Sealing gasket 5, Rotating rod 6, Rod body 1 61, Rod body 2 62, Rod body 3 63, Baffle 7, Fastener 71, Support seat 8, Support cylinder 81, Spring 9. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] like Figures 1-3As shown, this embodiment discloses a container cap structure, including a container body 1. The top of the container body 1 is provided with an opening 11. A cap is detachably installed on the opening 11. The cap includes a cap body 2. The bottom of the cap body 2 is conical. The opening 11 is provided with a conical hole. The bottom of the cap body 2 is inserted into the opening 11 to close the opening 11 and improve the sealing effect. The cap body 2 and the opening 11 are also more tightly connected, requiring more force to pull out the cap body 2.
[0021] like Figure 2 As shown, the plug body 2 is made of rubber and has an insertion hole 21. The insertion hole 21 is a conical hole, and the insertion hole 21 can be used to insert the installation tube 3. The installation tube 3 includes an insertion part 32, which is conical. When the insertion part 32 is inserted into the insertion hole 21, it opens the plug body 2 so that the plug body 2 is tightly attached to the inner wall of the conical hole of the opening 11, thereby improving the sealing effect.
[0022] like Figure 2 As shown, the insert 3 has a channel 321 on both sides, and a fixing rod 4 is threadedly connected to the channel 321. The fixing rod 4 is hinged to a rotating rod 6. The bottom of the insert 3 has a countersunk hole 31, and part of the rotating rod 6 is located in the countersunk hole 31.
[0023] like Figure 2 As shown, the rotating rod 6 is made of an elastic material. Specifically, the rotating rod 6 has the ability to deform. As one option, the rotating rod 6 is made of plastic.
[0024] The rotating rod 6 includes a second rod body 62, which is hinged to the fixed rod 4. Figure 3 The fixing rod 4 includes two extension plates 41, and the rod body 62 passes between the two extension plates 41 and is hinged. The extension plates 41 are provided with through holes 411 for mounting the hinge shaft.
[0025] like Figure 2 As shown, the rotating rod 6 also includes rod body 61 and rod body 63 located at both ends of rod body 62 along its length. Rod body 61 extends from the inner wall of the insert 3 to the outer wall of the insert 3. Specifically, the insert 3 has a channel 34 through which rod body 61 passes, and rod body 61 can move along the axial direction of channel 34. Channel 34 has a stepped surface and a sealing gasket 5 is installed therein. Rod body 61 has a corresponding stepped surface to press the sealing gasket 5 to form a seal.
[0026] A spring 9 is abutting between the two rods 61. Specifically, the insert 3 is equipped with a support base 8, which includes a support cylinder 81 located between the two rods 61. The support cylinder 81 is equipped with a spring 9, with both ends of the spring 9 extending out of the axial ends of the support cylinder 81.
[0027] A baffle 7 is fixedly installed on rod 63. The baffle 7 and rod 61 are located on opposite sides of the rotating rod 6. The baffle 7 is fixed by fasteners 71 pressing it down. The baffle 7 can extend into the bottom of the plug body 2. The baffle 7 can move radially along the plug body 2 so that the baffle 7 can move upward to abut against the bottom surface of the plug body 2.
[0028] The insert 3 is provided with a boss 33, which is located above the rod 61.
[0029] When both sides of the rod 61 are pressed at the same time, the two baffles 7 are moved away from each other and the baffles 7 extend into the bottom of the plug body 2. The maximum distance between the two plug bodies 2 is greater than the bottom diameter of the insertion hole 21. By pulling up the boss 33, the insertion tube 3 is pulled out and the plug body 2 is pulled out at the same time.
[0030] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A closure structure for a container, characterized by The container includes a container body (1), the top of which is provided with an opening (11), and a stopper cap is detachably installed on the opening (11). The stopper cap includes a stopper cap body (2) and a plug tube (3). The stopper cap body (2) can be inserted into the opening (11) to close the opening (11). The stopper cap body (2) is provided with a plug hole (21), and the plug tube (3) can be inserted into the plug hole (21). Fixed rods (4) are installed on both sides of the plug tube (3). The fixed rods (4) are hinged to rotating rods (6). The rotating rod (6) includes a rod body (61). The rod body (61) extends from the inner wall of the plug tube (3) to the outer wall of the plug tube (3). A spring (9) abuts between the two rod bodies (61). A baffle (7) is fixedly installed at the bottom of the rotating rod (6). The baffle (7) and the rod body (61) are located on both sides of the rotating rod (6). The baffle (7) can extend into the bottom of the plug body (2). The baffle (7) can move in the radial direction of the plug body (2) so that the baffle (7) can move upward to abut against the bottom surface of the plug body (2).
2. The stopper structure for a container according to claim 1, characterized in that, The insert (3) has a second channel (34), and the first rod (61) passes through the second channel (34). The first rod (61) can move along the axial direction of the second channel (34).
3. The stopper structure for a container according to claim 1, characterized in that, The insert (3) is equipped with a support base (8), the support base (8) includes a support cylinder (81), the support cylinder (81) is located between the two rods (61), the support cylinder (81) is equipped with the spring (9), and the two ends of the spring (9) extend out of the axial ends of the support cylinder (81).
4. The stopper structure for a container according to claim 1, characterized in that, The insert (3) is provided with a boss (33), which is located above the rod (61).
5. The stopper structure for a container according to claim 1, characterized in that, The rotating rod (6) includes a second rod body (62), which is hinged to the fixed rod (4), and a first rod body (61) is located at one end of the second rod body (62) along its length.
6. The stopper structure for a container according to claim 5, characterized in that, The rotating rod (6) includes a rod body three (63) on the side of the rod body two (62) away from the rod body one (61), and the rod body three (63) is fixedly mounted with the baffle (7).
7. The stopper structure for a container according to claim 1, characterized in that, The rotating rod (6) is made of elastic material.
8. The stopper structure for a container according to claim 1, characterized in that, The insert (3) is provided with a plug-in part (32), which is inserted into the plug hole (21). The plug hole (21) is a conical hole, and the plug-in part (32) is a conical shape that matches the plug hole (21).
9. The stopper structure for a container according to claim 1, characterized in that, The bottom of the plug body (2) is conical.