Sampling bottle plug
By designing a hemispherical stopper post and a threaded sampling bottle stopper, the problems of fragility, difficulty in removing air bubbles, and poor sealing were solved, achieving stable sealing under vibration conditions and ensuring measurement accuracy and sample purity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-03-03
AI Technical Summary
Existing sampling bottle stoppers are fragile, difficult to remove air bubbles, have poor sealing properties, and are prone to loosening during vibration, affecting measurement accuracy and sample purity.
The stopper is designed to be hemispherical, combined with a water seal groove and a threaded structure. The rubber ball enhances the seal through friction between itself and the bottle wall, and the pressure applied to the rubber ball is adjusted by a nut to prevent loosening.
It improves sealing, ensuring measurement accuracy and sample purity, while keeping the stopper stable and preventing it from loosening under vibration.
Smart Images
Figure CN223962520U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sampling bottle stopper technology, specifically relating to a sampling bottle stopper. Background Technology
[0002] In laboratories, sampling bottles are commonly used containers for storing various liquid or solid samples. The stopper, as a crucial component of the sampling bottle, primarily functions to seal the bottle opening and prevent sample leakage or contamination. However, most sampling bottle stoppers use a dry-head design, which has significant drawbacks: 1. Dry-head stoppers are typically angular, making them prone to breakage when inserted or removed from the bottle opening, causing debris to fall into the bottle, contaminating the sample and affecting subsequent analytical results. 2. Traditional stoppers are ineffective at removing air bubbles when injecting or discharging water samples. The presence of air bubbles affects measurement accuracy, especially in applications requiring high precision. 3. Traditional stoppers have poor sealing properties, easily allowing air to seep into the bottle, further affecting sample purity and the reliability of measurement results. 4. During transportation or under vibration, insufficient friction between the stopper and the bottle opening often leads to the stopper loosening during vibration, reducing the sealing effect. Utility Model Content
[0003] The purpose of this invention is to provide a sampling bottle stopper that can improve sealing and user experience, ensure the reliability of measurement results, and increase the friction between the sampling bottle and the stopper, making the stopper less likely to loosen when the sampling bottle vibrates.
[0004] The specific technical solution adopted by this utility model is as follows:
[0005] A sampling bottle stopper includes a stopper post, a circular stopper fixedly connected to the upper surface of the stopper post, a water seal groove formed on the surface of the stopper post, a circular groove formed on the upper surface of the stopper post, a first circular hole formed inside the circular stopper, threaded posts fitted to the inner walls of the first circular hole and the circular groove, a square hole formed inside the threaded posts, a square post fitted to the inner wall of the square hole, the bottom of the square post fixedly connected to the inner wall of the circular groove, and a U-shaped plate fixedly connected to the upper surface of the circular stopper. A second circular hole is formed on the surface, and a connecting post is fitted to the inner wall of the second circular hole. A ring is fixedly connected to the bottom of the connecting post. The upper and lower sides of the ring are respectively fitted to the upper surface of the circular stop and the inner wall of the U-shaped plate. A nut is threaded to the upper surface of the connecting post, and the inner wall of the nut is threaded to the surface of the threaded post. The inner wall of the ring is fitted to the surface of the threaded post. A trapezoidal groove is formed on the surface of the threaded post, and a conical hole is formed on the surface of the stopper post. Rubber balls are fitted to the inner walls of the conical hole and the inner walls of the trapezoidal groove.
[0006] The present invention is further configured such that the stopper is conical, the bottom end of the stopper is hemispherical, and the axis of the stopper coincides with the axis of the circular stopper.
[0007] The present invention is further configured such that an anti-slip sleeve is adhered to the surface of the circular stop.
[0008] The present invention is further configured such that a ventilation groove is formed on the surface of the square column, and the length of the ventilation groove is equal to the length of the square column.
[0009] The present invention is further configured such that the rubber ball is located above the water seal groove, the number of the rubber balls is four, and the four rubber balls are distributed in a circle with the axis of the threaded column as the center.
[0010] The present invention is further configured such that the bottom of the trapezoidal groove is an inclined surface, and the depth of the trapezoidal groove is less than the diameter of the rubber ball.
[0011] The technical effects achieved by this utility model are as follows:
[0012] This invention relates to a sampling bottle stopper with a hemispherical bottom design. This design eliminates sharp edges and prevents debris from being generated when the stopper is inserted or removed. Furthermore, the hemispherical shape at the bottom of the stopper effectively eliminates air bubbles during water sample injection or discharge, significantly improving measurement accuracy. Additionally, a water seal groove on the stopper further enhances the bottle's sealing performance, effectively preventing air from entering the bottle and ensuring the purity of the water sample and the reliability of the measurement results.
[0013] This utility model provides a sampling bottle stopper that, through the cooperation of a threaded post, a square hole, a square post, a U-shaped plate, a second circular hole, a connecting post, a ring, a nut, a trapezoidal groove, a conical hole, and a rubber ball, allows the user to press the rubber ball against the inner wall of the sampling bottle by rotating the nut. The friction between the rubber ball and the inner wall of the sampling bottle prevents the stopper from loosening due to vibration after being inserted into the sampling bottle, thus giving the stopper high sealing performance. Attached Figure Description
[0014] Figure 1 This is a front view of the structure of this utility model;
[0015] Figure 2 This is a right view of the structure of this utility model;
[0016] Figure 3 yes Figure 2 Sectional view at point AA;
[0017] Figure 4 This is a front view of the bottle stopper column in this utility model;
[0018] Figure 5 yes Figure 4 Sectional view at point BB;
[0019] Figure 6 This is a top view of the circular stop in this utility model;
[0020] Figure 7 This is a front view of the threaded column in this utility model;
[0021] Figure 8 This is a top view of the threaded column in this utility model;
[0022] Figure 9 This is a top view of the square column in this utility model;
[0023] Figure 10 This is a bottom view of the U-shaped plate in this utility model;
[0024] Figure 11 This is a top view of the ring in this utility model.
[0025] The attached diagram lists the components represented by each number as follows:
[0026] 1. Bottle stopper; 2. Circular stop; 3. Water seal groove; 4. Circular groove; 5. First circular hole; 6. Threaded post; 7. Square hole; 8. Square post; 9. U-shaped plate; 10. Second circular hole; 11. Connecting post; 12. Circular ring; 13. Nut; 14. Trapezoidal groove; 15. Conical hole; 16. Rubber ball; 17. Anti-slip sleeve; 18. Vent groove. Detailed Implementation
[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0029] like Figures 1 to 4 As shown, a sampling bottle stopper includes a stopper post 1, a circular stopper 2 fixedly connected to the upper surface of the stopper post 1, a water seal groove 3 opened on the surface of the stopper post 1, the stopper post 1 is conical, the bottom end of the stopper post 1 is hemispherical, the axis of the stopper post 1 coincides with the axis of the circular stopper 2, and an anti-slip sleeve 17 is adhered to the surface of the circular stopper 2.
[0030] It should be noted that by designing the bottom of the stopper post 1 into a hemispherical shape, the stopper of the sampling bottle is free of sharp edges, thus preventing debris from being generated when inserting or removing the stopper. Furthermore, the hemispherical shape at the bottom of the stopper post 1 can more effectively eliminate air bubbles in the bottle when injecting or discharging water samples, thereby significantly improving the accuracy of the measurement. At the same time, by setting a water seal groove 3 on the stopper post 1, the sealing performance of the sampling bottle stopper can be further enhanced, effectively preventing air from seeping into the bottle, ensuring the purity of the water sample and the reliability of the measurement results. The anti-slip sleeve 17 prevents the sampling bottle stopper from slipping out of the user's hand when gripping it.
[0031] like Figures 1 to 11 As shown, a circular groove 4 is formed on the upper surface of the stopper 1, and a first circular hole 5 is formed inside the circular stop 2. Threaded posts 6 are fitted into both the inner wall of the first circular hole 5 and the inner wall of the circular groove 4. A square hole 7 is formed inside the threaded post 6, and a square post 8 is fitted into the inner wall of the square hole 7. The bottom of the square post 8 is fixedly connected to the inner wall of the circular groove 4. A U-shaped plate 9 is fixedly connected to the upper surface of the circular stop 2, and a second circular hole 10 is formed on the upper surface of the U-shaped plate 9. A connecting post 11 is fitted into the inner wall of the second circular hole 10. A ring 12 is fixedly connected to the bottom of the connecting post 11. The upper and lower sides of the ring 12 are respectively attached to the upper surface of the circular stop block 2 and the inner wall of the U-shaped plate 9. A nut 13 is threadedly connected to the upper surface of the connecting post 11. The inner wall of the nut 13 is threadedly connected to the surface of the threaded post 6. The inner wall of the ring 12 is attached to the surface of the threaded post 6. A trapezoidal groove 14 is opened on the surface of the threaded post 6. A conical hole 15 is opened on the surface of the bottle stopper post 1. Rubber balls 16 are attached to the inner walls of the conical hole 15 and the inner walls of the trapezoidal groove 14.
[0032] Among them, the rubber ball 16 is located above the water seal groove 3. There are four rubber balls 16, and the four rubber balls 16 are distributed in a circle with the axis of the threaded column 6 as the center. The bottom of the trapezoidal groove 14 is inclined, and the depth of the trapezoidal groove 14 is less than the diameter of the rubber ball 16. The surface of the square column 8 is provided with a venting groove 18, and the length of the venting groove 18 is equal to the length of the square column 8.
[0033] It should be noted that the square post 8 and the square hole 7 work together to allow the threaded post 6 to move only upwards or downwards. The connecting post 11 connects the ring 12 and the nut 13 together. The U-shaped plate 9, the second circular hole 10, the connecting post 11, and the ring 12 work together to ensure the nut 13 fits against the U-shaped plate 9. When the nut 13 rotates, the threads on the nut 13 and the threaded post 6 allow the threaded post 6 to move upwards or downwards. When the threaded post 6 moves upwards, the inclined surface at the bottom of the trapezoidal groove 14 allows... The rubber ball 16 presses against the inner wall of the sampling bottle, and the friction between the rubber ball 16 and the inner wall of the sampling bottle makes the bottle stopper less likely to loosen due to vibration after being inserted into the sampling bottle. When the threaded post 6 moves down and the rubber ball 16 separates from the inclined surface at the bottom of the trapezoidal groove 14, the rubber ball 16 no longer presses against the inner wall of the sampling bottle. At this time, the bottle stopper can be easily removed from the sampling bottle, and the air pressure inside and outside the circular groove 4 is equalized through the venting groove 18.
[0034] The working principle of this utility model is as follows: the bottle stopper 1 is inserted into the mouth of the sampling bottle, and the bottle stopper 1 is limited by the circular stopper 2. At the same time, the water seal groove 3 can further enhance the sealing performance of the bottle stopper, and the hemispherical shape at the bottom of the bottle stopper 1 can effectively eliminate air bubbles in the bottle when injecting or discharging water samples.
[0035] After the stopper 1 is inserted into the sampling bottle, the threaded post 6 is moved upward by rotating the nut 13, and the rubber ball 16 is pressed against the inner wall of the sampling bottle by the inclined surface at the bottom of the trapezoidal groove 14. At this time, the friction between the rubber ball 16 and the inner wall of the sampling bottle makes the stopper less likely to loosen due to vibration after it is inserted into the sampling bottle.
[0036] When it is necessary to remove the stopper of the sampling bottle, first rotate the nut 13 to move the threaded post 6 downward. After the rubber ball 16 separates from the inclined surface at the bottom of the trapezoidal groove 14, the rubber ball 16 no longer presses against the inner wall of the sampling bottle. At this time, the stopper of the sampling bottle can be easily removed from the sampling bottle.
[0037] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A sampling bottle stopper, characterized in that: The device includes a stopper (1), a circular stopper (2) fixedly connected to the upper surface of the stopper (1), a water seal groove (3) formed on the surface of the stopper (1), a circular groove (4) formed on the upper surface of the stopper (1), a first circular hole (5) formed inside the circular stopper (2), threaded posts (6) fitted together on the inner wall of the first circular hole (5) and the inner wall of the circular groove (4), a square hole (7) formed inside the threaded posts (6), a square post (8) fitted together on the inner wall of the square hole (7), the bottom of the square post (8) fixedly connected to the inner wall of the circular groove (4), a U-shaped plate (9) fixedly connected to the upper surface of the circular stopper (2), and a second circular hole (1) formed on the upper surface of the U-shaped plate (9). 0), the inner wall of the second circular hole (10) is fitted with a connecting post (11), the bottom of the connecting post (11) is fixedly connected with a ring (12), the upper and lower sides of the ring (12) are respectively fitted with the upper surface of the circular stop (2) and the inner wall of the U-shaped plate (9), the upper surface of the connecting post (11) is threaded with a nut (13), the inner wall of the nut (13) is threaded with the surface of the threaded post (6), the inner wall of the ring (12) is fitted with the surface of the threaded post (6), the surface of the threaded post (6) is provided with a trapezoidal groove (14), the surface of the stopper post (1) is provided with a conical hole (15), the inner wall of the conical hole (15) and the inner wall of the trapezoidal groove (14) are both fitted with rubber balls (16).
2. The sampling bottle stopper according to claim 1, characterized in that: The stopper (1) is conical, and the bottom of the stopper (1) is hemispherical. The axis of the stopper (1) coincides with the axis of the circular stopper (2).
3. The sampling bottle stopper according to claim 1, characterized in that: The surface of the circular stop (2) is bonded with an anti-slip sleeve (17).
4. The sampling bottle stopper according to claim 1, characterized in that: The surface of the square column (8) is provided with a ventilation groove (18), the length of which is equal to the length of the square column (8).
5. A sampling bottle stopper according to claim 1, characterized in that: The rubber ball (16) is located above the water seal groove (3). There are four rubber balls (16), and the four rubber balls (16) are distributed in a circle with the axis of the threaded column (6) as the center.
6. A sampling bottle stopper according to claim 1, characterized in that: The bottom of the trapezoidal groove (14) is an inclined surface, and the depth of the trapezoidal groove (14) is less than the diameter of the rubber ball (16).