Anti-falling sealing plug rubber sleeve
By utilizing the threaded engagement transmission structure between the rotary dial and the pressure block, along with the cooperation of the locking tongue plate, the problem of the sealing plug's rubber sleeve easily falling off is solved, achieving a stable connection of the sealing plug and ensuring its normal insertion and removal.
Patent Information
- Application Number
- CN202520386914.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Traditional sealing plug sleeves are prone to falling off when the sealing plug is pulled out of the container, affecting the normal insertion and removal of the sealing plug.
The rotary dial and pressure block are connected by a threaded meshing transmission structure. The locking and unlocking of the sealing sleeve are achieved through the cooperation of the locking tongue plate and the return spring, ensuring a stable connection between the sealing sleeve and the sealing plug shell.
This effectively prevents the sealing sleeve from detaching from the sealing plug shell during the removal of the sealing plug, ensuring the normal insertion and removal of the sealing plug and improving the stability and reliability of the sealing plug in use.
Smart Images

Figure CN223962519U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sealing plugs, and more specifically, it relates to an anti-detachment sealing plug sleeve. Background Technology
[0002] A sealing plug sleeve is a device used to seal the opening of a container to protect the contents inside. It is typically made of materials such as rubber, silicone, or PVC. It effectively prevents liquids, gases, or other substances from seeping into or out of the sealed container, isolating the contents from the external environment. Currently, sealing plug sleeves are usually cylindrical. The sleeve utilizes the elastic shrinkage and deformation properties of rubber and silicone to nest within the outer surface of the sealing plug, forming a tight seal between the container opening and the sleeve. However, the traditional installation structure of sealing plug sleeves is relatively simple; the sleeve is merely nested on the outside of the sealing plug. When the sealing plug is removed from the container opening, the friction between the container opening and the sleeve often causes the sleeve to detach from the sealing plug, affecting the normal insertion and removal of the sealing plug. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides an anti-detachment sealing plug sleeve, which solves the problem that the traditional sealing plug outer sleeve, assembled with a nested bonding structure, causes the sleeve to easily detach when the sealing plug is pulled out of the container.
[0004] This utility model provides an anti-detachment sealing plug sleeve, including a ring frame; a knob is rotatably connected to the inner side of the ring frame, and a sealing plug shell is rotatably connected to the outer side of the knob. A guide support crossbar is welded to the outer side of the ring frame, and a sealing plug shell is welded to the end of the guide support crossbar; it also includes a sealing sleeve and a guide seat; the inner side of the sealing sleeve is embedded in the sealing plug shell, and a through hole is provided on the upper side of the sealing plug shell, with the knob being rotatably connected to the through hole; a pressure block is slidably connected to the outer side of the guide seat, and a sealing plug shell is welded to the bottom end of the guide seat; a locking tongue plate is slidably connected to the outer side of the guide support crossbar, and the locking tongue plate is welded to a return spring.
[0005] In at least some embodiments, the sealing sleeve is made of silicone material and has a cylindrical structure with an opening on the top. The inner side of the cylindrical structure of the sealing sleeve is provided with three sets of annular ring plates, and the outer side of the cylindrical structure of the sealing sleeve is provided with ring plates. The inner side of the cylindrical structure of the sealing sleeve is provided with two sets of left-right symmetrical through grooves near the top, and the locking tongue plate is inserted into the through grooves of the sealing sleeve.
[0006] In at least some embodiments, the outer side of the sealing plug shell is provided with three sets of annular shallow grooves near the bottom end, and the three sets of annular ring plates of the sealing sleeve are respectively embedded in the three sets of annular shallow grooves of the sealing plug shell. The lower side of the sealing plug shell is provided with an annular deep groove with the opening facing downward. The groove wall of the annular deep groove of the sealing plug shell is provided with two sets of through grooves, and the locking tongue plate is inserted into the through groove of the annular deep groove of the sealing plug shell.
[0007] In at least some embodiments, the pressure block is a conical structure, with a protruding post at the top of the conical structure, a threaded structure on the outer side of the protruding post, a circular deep hole at the center of the lower side of the conical structure, and two sets of elongated grooves symmetrically distributed front and back on the inner wall of the circular deep hole.
[0008] In at least some embodiments, a cylindrical protrusion is provided at the center of the lower side of the rotary disc, and a threaded deep hole is provided at the center of the lower side of the cylindrical protrusion. The threaded structure on the outer side of the pressure block protrusion is engaged with the threaded deep hole of the rotary disc protrusion.
[0009] In at least some embodiments, a protruding post is provided at the center of the upper side of the guide seat, and two sets of symmetrically distributed protruding strips are provided on the outer side of the protruding post of the guide seat. The protruding post of the guide seat is embedded in the circular deep hole of the pressure block, and the protruding strip of the guide seat is embedded in the long groove of the pressure block.
[0010] In at least some embodiments, the number of return springs is two sets, the return springs are symmetrically distributed on the left and right, one end of the return spring is welded with a locking tongue plate, and the other end of the return spring is welded with a sealing plug.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. In this utility model, the threaded engagement transmission structure formed by the threaded deep hole of the rotary dial and the threaded outer side of the pressure block protrusion allows the outer conical surface of the pressure block, in conjunction with the elastic action of the return spring, to push the two sets of locking tongue plates along the through groove of the sealing plug shell and into the through groove of the sealing sleeve. This achieves the locking of the locking tongue plates onto the sealing sleeve, effectively preventing the sealing sleeve from detaching from the sealing plug shell during the removal of the sealing plug from the container opening. This makes the nesting installation of the sealing sleeve outside the sealing plug shell more secure and stable, ensuring the normal insertion and removal of the sealing plug. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] Figure 2 This is a schematic diagram of the structure of this utility model from a bottom view.
[0015] Figure 3 This is a front view cross-sectional structural diagram of this utility model.
[0016] Figure 4 This is a cross-sectional schematic diagram of the locked state of this utility model.
[0017] Figure 5 This is a cross-sectional view of the unlocked state of this utility model.
[0018] Figure 6 This is the utility model Figure 5 Enlarged structural diagram of part A in the middle.
[0019] Figure 7 This is an exploded structural diagram of the present invention.
[0020] Reference numerals in the attached diagram: 1. Sealing plug housing; 2. Rotary knob; 3. Sealing sleeve; 4. Guide seat; 5. Pressure block; 6. Locking tongue plate; 7. Guide support crossbar; 8. Return spring; 9. Ring frame. Detailed Implementation
[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0022] like Figures 1-7 As shown, this utility model provides an anti-detachment sealing plug sleeve, including a ring frame 9; a knob 2 is rotatably connected to the inner side of the ring frame 9, and a sealing plug shell 1 is rotatably connected to the outer side of the knob 2; a guide support crossbar 7 is welded to the outer side of the ring frame 9, and the sealing plug shell 1 is welded to the end of the guide support crossbar 7; it also includes a sealing sleeve 3 and a guide seat 4; the inner side of the sealing sleeve 3 is embedded in the sealing plug shell 1, and the upper side of the sealing plug shell 1 has a through hole, in which the knob 2 is rotatably connected; a pressure block 5 is slidably connected to the outer side of the guide seat 4, and the sealing plug shell 1 is welded to the bottom end of the guide seat 4; a locking tongue plate 6 is slidably connected to the outer side of the guide support crossbar 7, and the locking tongue plate 6 is welded to a return spring 8.
[0023] In this embodiment, the sealing sleeve 3 is made of silicone material. The sealing sleeve 3 is a cylindrical structure with an opening on the upper side. The inner side of the cylindrical structure of the sealing sleeve 3 is provided with three sets of annular ring plates, and the outer side of the cylindrical structure of the sealing sleeve 3 is provided with ring plates. The inner side of the cylindrical structure of the sealing sleeve 3 near the top is provided with two sets of left-right symmetrical through grooves. The locking tongue plate 6 is inserted into the through groove of the sealing sleeve 3. The locking tongue plate 6 limits and locks the sealing sleeve 3 to move up and down through the through groove of the sealing sleeve 3, so as to prevent the sealing sleeve 3 from falling off the sealing plug shell 1 due to the friction of the container bottle mouth.
[0024] In this embodiment, the outer side of the sealing plug shell 1 is provided with three sets of annular shallow grooves near the bottom. The three sets of annular ring plates of the sealing sleeve 3 are respectively embedded in the three sets of annular shallow grooves of the sealing plug shell 1, so that the inner side of the sealing sleeve 3 and the contact part of the sealing plug shell 1 form a sliding obstacle, making the nesting structure of the sealing sleeve 3 on the outer side of the sealing plug shell 1 more firm and stable. The lower side of the sealing plug shell 1 is provided with an annular deep groove with the opening facing downward. The groove wall of the annular deep groove of the sealing plug shell 1 is provided with two sets of through grooves, and the locking tongue plate 6 is inserted into the through groove of the annular deep groove of the sealing plug shell 1.
[0025] In this embodiment, the pressure block 5 has a conical structure. The arc-shaped inclined surface of the conical structure of the pressure block 5 pushes the two sets of locking tongue plates 6, causing the two sets of locking tongue plates 6 to move synchronously left and right along the guide support crossbar 7, thus completing the conversion from the vertical movement of the pressure block 5 to the horizontal sliding of the locking tongue plates 6. The top of the conical structure of the pressure block 5 is provided with a protruding post, and the outer side of the protruding post is provided with a threaded structure. The center of the lower side of the conical structure of the pressure block 5 is provided with a circular deep hole, and the inner wall of the circular deep hole is provided with two sets of elongated grooves symmetrically distributed front and back.
[0026] In this embodiment, a cylindrical protrusion is provided at the center of the lower side of the rotary disk 2, and a threaded deep hole is provided at the center of the lower side of the cylindrical protrusion. The threaded structure on the outer side of the protrusion of the pressure block 5 is engaged with the threaded deep hole of the protrusion of the rotary disk 2. During the rotation of the rotary disk 2, the pressure block 5 with the conical structure moves up and down, completing the synchronous pressing and moving of the two sets of locking tongue plates 6 by the pressure block 5, so that the locking tongue plates 6 pass through the through groove of the sealing sleeve 3 for locking.
[0027] In this embodiment, a protruding post is provided at the center of the upper side of the guide seat 4, and two sets of symmetrically distributed protruding strips are provided on the outer side of the protruding post of the guide seat 4. The protruding post of the guide seat 4 is embedded in the circular deep hole of the pressure block 5, and the protruding strip of the guide seat 4 is embedded in the long groove of the pressure block 5. The protruding strip of the guide seat 4 limits the horizontal rotation of the pressure block 5 to ensure that the pressure block 5 moves stably up and down along the protruding post of the guide seat 4.
[0028] In this embodiment, there are two sets of return springs 8, which are symmetrically distributed on the left and right. One end of the return spring 8 is welded with a locking tongue plate 6, and the other end of the return spring 8 is welded with a sealing plug shell 1. When the pressure block 5 moves downward away from the locking tongue plate 6, the elastic action of the return spring 8 pushes the locking tongue plate 6 to automatically retract into the through groove of the sealing plug shell 1. At this time, the locking tongue plate 6 is disengaged from the through groove of the sealing sleeve 3, thus completing the unlocking of the sealing sleeve 3.
[0029] The specific usage and function of this embodiment are as follows:
[0030] In this invention, during the locking and installation of the sealing sleeve 3, the sealing sleeve 3 is nested on the outer side of the sealing plug shell 1, so that the through groove of the sealing sleeve 3 is aligned with the through groove of the sealing plug shell 1. Then, the rotary knob 2 is manually rotated. Because the threaded structure on the outer side of the protrusion of the pressure block 5 is engaged in the deep threaded hole of the rotary knob 2, the rotary knob 2 drives the pressure block 5 to move upward along the protrusion of the guide seat 4. At this time, the inclined conical surface of the pressure block 5 pushes the two sets of locking tongue plates 6. The locking tongue plates 6 then move in opposite directions along the guide support crossbar 7, overcoming the elastic force of the return spring 8. The locking tongue plates 6 extend to the outside of the through groove of the sealing plug shell 1. At this time, the locking tongue plates 6 are inserted into the through groove of the sealing sleeve 3. The sealing sleeve 3 is locked in the upper and lower limits in the through groove of the sealing sleeve 3 to prevent the sealing sleeve 3 from falling off the sealing plug shell 1 when the sealing plug is pulled out of the container. When unlocking and disassembling the sealing sleeve 3, the knob 2 is rotated in the opposite direction. The knob 2 drives the pressure block 5 to move downward along the protrusion of the guide seat 4. At this time, the inclined conical surface of the pressure block 5 moves downward synchronously. Under the elastic force of the return spring 8, the two sets of locking tongue plates 6 move towards each other on the left and right sides along the guide support crossbar 7. The locking tongue plates 6 retract into the inside of the through groove of the sealing plug shell 1. At this time, the locking tongue plates 6 disengage from the through groove of the sealing sleeve 3. Finally, the sealing sleeve 3 is pulled down from the sealing plug shell 1 to complete the unlocking and disassembly of the sealing sleeve 3.
[0031] All the above components are installed, connected, or set up using common mechanical methods, such as welding, threaded connections, and screw connections. Furthermore, the specific structure, model, and coefficient specifications of all components are based on their own technology; any method that achieves the desired effect can be implemented. The return spring 8 used above is a common component on the market. When purchasing and using it, simply follow the instruction manual purchased with the product to connect it for use; therefore, it will not be described in detail here.
[0032] The technical solution of this utility model is not limited to the scope of the embodiments of this utility model. All technical contents not described in detail in this utility model are known technologies.
Claims
1. A kind of anti-drop sealing plug rubber sleeve, including ring holder (9);The inner side of the ring holder (9) is rotatably connected with the rotary knob disc (2), and the outer side of the rotary knob disc (2) is rotatably connected with the sealing plug shell (1), and the outer side of the ring holder (9) is welded with the guide support crossbar (7), and the end of the guide support crossbar (7) is welded with the sealing plug shell (1);Its characterized in that: Also include sealing sleeve (3) and guide seat (4); The inner side of the sealing sleeve (3) is embedded in the sealing plug shell (1), the upper side of the sealing plug shell (1) is provided with a through hole, and the through hole of the sealing plug shell (1) is rotatably connected with the rotary knob disc (2); The outer side of the guide seat (4) is slidably connected with the pressing block (5), and the bottom end of the guide seat (4) is welded with the sealing plug shell (1); The outer side of the guide support cross bar (7) is slidably connected with the lock tongue plate (6), and the lock tongue plate (6) is welded with the return spring (8).
2. The anti -dislodgement seal plug sleeve of claim 1, wherein: The sealing sleeve (3) is made of silica gel material, the sealing sleeve (3) is a cylinder structure with an upper opening, the inner side of the cylinder structure of the sealing sleeve (3) is provided with three annular ring plates, the outer side of the cylinder structure of the sealing sleeve (3) is provided with a ring plate, and the inner side of the cylinder structure of the sealing sleeve (3) is provided with two groups of left-right symmetrical through grooves close to the top end, and the lock tongue plate (6) is inserted into the through groove of the sealing sleeve (3).
3. The anti -migration seal plug grommet of claim 1, wherein: The outer side of the sealing plug shell (1) is provided with three groups of annular shallow grooves close to the bottom end, the three annular ring plates of the sealing sleeve (3) are embedded in the three groups of annular shallow grooves of the sealing plug shell (1), the lower side of the sealing plug shell (1) is provided with an annular deep groove with an opening downward, the groove wall of the annular deep groove of the sealing plug shell (1) is provided with two groups of through grooves, and the lock tongue plate (6) is inserted into the through groove of the annular deep groove of the sealing plug shell (1).
4. The anti -migration seal plug grommet of claim 1, wherein: The pressing block (5) is a conical structure, the top end of the conical structure of the pressing block (5) is provided with a convex column, the outer side of the convex column is provided with a threaded structure, and the lower side of the conical structure of the pressing block (5) is provided with a circular deep hole at the center position.
5. The anti-detachment sealing plug sleeve as described in claim 1, characterized in that: The lower side of the cylindrical convex column at the center position of the rotary knob disc (2) is provided with a threaded deep hole, and the threaded structure of the convex column of the pressing block (5) is engagedly connected in the threaded deep hole of the convex column of the rotary knob disc (2).
6. The anti -migration seal plug grommet of claim 1, wherein: The upper side of the guide seat (4) is provided with a convex column at the center position, the outer side of the convex column of the guide seat (4) is provided with two groups of front-rear symmetrical distributed convex strips, the convex column of the guide seat (4) is embedded in the circular deep hole of the pressing block (5), and the convex strip of the guide seat (4) is embedded in the long groove of the pressing block (5).
7. The anti -migration seal plug grommet of claim 1, wherein: The number of return springs (8) is two groups, the return springs (8) are distributed left-right symmetrically, one end of the return spring (8) is welded with the lock tongue plate (6), and the other end of the return spring (8) is welded with the sealing plug shell (1).