Tamper-evident closure and tamper-evident container
By designing the anti-theft cover's recessed platform, through-hole, liquid guide tube, and ball plug structure, and utilizing gravity and air pressure balance mechanisms, the problem of easy theft of cleaning fluid was solved, achieving anti-theft functionality and reducing product waste and economic losses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU LIBY ENTERPRISE GROUP CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-07
AI Technical Summary
Existing cleaning fluid packaging lacks effective anti-theft mechanisms, making it easy for bottle caps to be opened and cleaning fluid to be stolen, resulting in product waste and economic losses, especially in public places with high population mobility.
An anti-theft cap was designed, including a cap body, a plug, and a ball plug. By setting a recessed platform, a through hole, a liquid guide tube, a sealing ring, and a limiting structure, it uses a gravity and air pressure balance mechanism to prevent unauthorized personnel from immediately pouring out liquids without authorization, thus increasing the difficulty of pouring out liquids.
It effectively prevents theft of cleaning solutions, reduces product waste and economic losses, and improves the safety of cleaning solution use in public places.
Smart Images
Figure CN224466534U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of daily chemical products technology, and in particular to an anti-theft cover. Background Technology
[0002] With the rapid development of the commercial laundry and public cleaning industries, cleaning solutions have been widely used in public places such as hotels, hospitals, and restaurants. These products typically feature large-capacity packaging to meet high-frequency, high-volume cleaning needs.
[0003] Existing cleaning solution packaging primarily consists of plastic bottles and screw caps. While this structure facilitates production and use, it presents challenges for supervision due to the products being stored in public cleaning rooms or equipment rooms for extended periods. Current mainstream packaging designs focus primarily on sealing and leak-proof features, neglecting anti-theft capabilities, resulting in easily opened caps. In practical applications, the lack of effective anti-tampering mechanisms allows cleaning solutions to be easily stolen or misused by unauthorized personnel, leading to product waste and additional economic losses for businesses. This problem is particularly pronounced in high-traffic public areas, becoming a common challenge for cleaning service providers and property management companies. Utility Model Content
[0004] The purpose of this invention is to provide an anti-theft cover to alleviate the technical problem that cleaning fluid in existing public areas is easily stolen.
[0005] In a first aspect, the present invention provides an anti-theft cover, comprising: a cover body, a plug, and a ball plug. The top plate of the cover body is provided with a downwardly recessed platform, and the bottom surface of the platform is provided with a through hole penetrating the bottom surface of the platform. The side wall of the platform is provided with an air hole penetrating its inner and outer walls. The plug is connected to the platform and is used to seal the through hole.
[0006] A liquid guide tube is provided below the through hole. The inner wall of the liquid guide tube is provided with a sealing ring and a limiting structure. The limiting structure is located below the sealing ring, and the gap between the two forms a sealing cavity. The sealing ring can prevent the liquid drawing tube from entering the sealing cavity. A liquid inlet hole is provided on the side wall of the liquid guide tube, which connects the inside and outside of the sealing cavity. The liquid inlet hole is located between the sealing ring and the limiting structure.
[0007] The ball plug is rolled in the sealing cavity, and when the ball plug contacts the limiting structure, the liquid inlet hole and the hollow area of the sealing ring are in a communicating state, and when the ball plug contacts the sealing ring, the hollow area of the sealing ring is in a closed state.
[0008] Furthermore, the liquid guide tube includes at least a first section and a second section connected vertically, wherein the inner diameter of the first section is larger than the inner diameter of the second section;
[0009] The sealed cavity is located below the second section.
[0010] Furthermore, the vent is disposed on the bottom surface of the recessed platform and is coplanar with the through hole;
[0011] At least one of the inner circumferential wall of the settling platform and the outer circumferential wall of the blockage is provided with a sealing structure.
[0012] Furthermore, the circumferential outer wall of the blockage is provided with elastic ribs to ensure an interference fit between the blockage and the settling platform.
[0013] Furthermore, a sealing groove is provided on the circumferential inner wall of the sinking platform.
[0014] Furthermore, the anti-theft cover also includes an extension tube, which is inserted into the liquid guiding tube, and the lower end opening of the extension tube is lower than the lower end of the liquid guiding tube.
[0015] Furthermore, the cover includes a top plate and circumferential side plates connected to each other, the recessed platform is disposed on the top plate, and the circumferential side plates are provided with internal threads and a first ratchet.
[0016] The internal thread is used to connect with the external thread at the bottle opening on the bottle body, so that the anti-theft cap can be locked with the bottle body after rotating in the forward direction;
[0017] The first ratchet is used to stop the second ratchet located at the bottle opening. The first and second ratchets are tilted in opposite directions to prevent the anti-theft cap from rotating in the opposite direction relative to the bottle body.
[0018] Furthermore, a downwardly protruding annular sealing sidewall is provided below the top plate, and the annular sealing sidewall is interference-fitted with the inner wall of the bottle opening.
[0019] Secondly, the present invention provides an anti-theft container, comprising a bottle body and the aforementioned anti-theft cap.
[0020] Thirdly, the present invention provides an anti-theft container, comprising a bottle body and the aforementioned anti-theft cap, wherein the anti-theft cap is connected to the bottle body by an adhesive; or, the anti-theft cap is welded to the bottle body.
[0021] This utility model has at least the following advantages or beneficial effects:
[0022] The anti-theft cover provided by this utility model includes: a cover body, a plug, and a ball plug. The top plate of the cover body has a downwardly recessed platform, and the bottom surface of the platform has a through hole penetrating the bottom surface of the platform. The side wall of the platform has air holes penetrating its inner and outer walls. The plug is connected to the platform and is used to seal the through hole. A liquid guide tube is provided below the through hole, and the inner wall of the liquid guide tube has a sealing ring and a limiting structure. The limiting structure is located below the sealing ring, and the gap between the two forms a sealing cavity. The sealing ring can prevent a liquid-drawing tube from entering the sealing cavity. The side wall of the liquid guide tube has a liquid inlet hole communicating with the inside and outside of the sealing cavity. The liquid inlet hole is located between the sealing ring and the limiting structure. The ball plug is rolled within the sealing cavity, and when the ball plug contacts the limiting structure, the liquid inlet hole is in communication with the hollow area of the sealing ring; when the ball plug contacts the sealing ring, the hollow area of the sealing ring is closed.
[0023] Under normal conditions, the bottle is upright, and the bulb stopper is positioned at the limiting structure due to gravity. The user can remove the stopper, insert the suction tube through the through-hole, and extend it into the liquid guide tube. The outer diameter of the suction tube is approximately the same as the inner diameter of the liquid guide tube. Activating the suction mechanism at the outer end of the suction tube allows liquid from the bottle to enter the sealing chamber through the inlet, then through the sealing ring into the suction tube. During suction, air enters the bottle through the vent, achieving pressure balance. Without the matching suction assembly (including the suction tube and suction mechanism), simply tilting the bottle will not allow liquid to be poured out of the cap. When the bottle is tilted, the bulb stopper moves to the top of the sealing chamber due to gravity and contacts the sealing ring, closing the chamber. Liquid cannot flow into the liquid guide tube; only a very small amount flows out through the vent. Once a certain volume of liquid has flowed out, a negative pressure is created inside the bottle, preventing further outflow. This increases the difficulty of directly pouring out the liquid, thus achieving an anti-theft function. Attached Figure Description
[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0025] Figure 1 A schematic diagram of the anti-theft container provided in Embodiment 1 of this utility model;
[0026] Figure 2 A cross-sectional view of the anti-theft container provided in Embodiment 1 of this utility model;
[0027] Figure 3 for Figure 2 A magnified view of a portion of position A in the middle;
[0028] Figure 4 This is a cross-sectional view of the anti-theft container after it has been tilted, as provided in Embodiment 1 of this utility model.
[0029] Figure 5 A schematic diagram of the lid of the anti-theft container provided in Embodiment 1 of this utility model;
[0030] Figure 6 for Figure 2 Cross-sectional view along the BB direction;
[0031] Figure 7 This is a schematic diagram of the bottle body of the anti-theft container provided in Embodiment 1 of this utility model.
[0032] Icons: 1-Cover; 11-Top plate; 111-Annular sealing sidewall; 12-Circumferential side plate; 121-Internal thread; 122-First ratchet; 13-Counterpart; 131-Sealing groove; 14-Air hole; 15-Liquid guide tube; 151-First section; 152-Second section; 16-Sealing ring; 17-Limiting structure; 18-Liquid inlet; 19-Sealing cavity;
[0033] 2-Block; 21-Elastic rib;
[0034] 3-Ball plug;
[0035] 4-Elongation tube;
[0036] 5-Bottle body; 51-External thread; 52-Second ratchet. Detailed Implementation
[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0041] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0042] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0043] like Figures 1-7 As shown, the anti-theft cover provided by this utility model includes: cover body 1, plug 2 and ball plug 3.
[0044] like Figure 3 and Figure 5 As shown, the cover 1 includes a top plate 11 and circumferential side plates 12 that surround the top plate 11 and extend downward.
[0045] like Figure 3 As shown, the top plate 11 of the cover 1 has a recessed platform 13, and the bottom surface of the platform 13 has a through hole penetrating the bottom surface of the platform 13. The inner diameter of the through hole is smaller than the bottom surface area of the platform 13, and the through hole is approximately located in the middle of the bottom surface of the platform 13. The bottom surface of the platform 13 has an air hole 14 penetrating its inner and outer walls, and the air hole 14 is located next to the through hole.
[0046] The plug 2 is connected to the recessed platform 13 to seal the through hole and can simultaneously seal the vent 14. The plug 2 can be connected to the recessed platform 13 by plugging and unplugging.
[0047] A liquid guide tube 15 is provided below the through hole. The inner wall of the liquid guide tube 15 is provided with a sealing ring 16 and a limiting structure 17. The limiting structure 17 can be formed by the inward opening at the lower end of the liquid guide tube 15. The limiting structure 17 is located below the sealing ring 16, and the gap between the two forms a sealing cavity 19. During normal liquid extraction, the liquid extraction tube is inserted into the liquid guide tube 15 until the liquid extraction tube abuts against the sealing ring 16 and cannot be inserted further into the sealing cavity 19.
[0048] The side wall of the liquid guide tube 15 is provided with a liquid inlet hole 18 that connects the inside and outside of the sealing cavity 19. There can be multiple liquid inlet holes 18, which are distributed circumferentially. The liquid inlet hole 18 is located between the sealing ring 16 and the limiting structure 17. When the bottle body 5 is upright, the ball plug 3 does not block the liquid inlet hole 18.
[0049] The ball plug 3 is rolled within the sealing cavity 19. When the anti-theft cap is inverted, the ball plug 3 can contact either the limiting structure 17 or the sealing ring 16. When the ball plug 3 contacts the limiting structure 17, the inlet hole 18 and the hollow area of the sealing ring 16 are in communication. When a negative pressure exists in the liquid guide tube 15, the liquid in the bottle 5 can enter the sealing cavity 19 through the liquid guide hole, and then enter the liquid guide tube 15 through the sealing ring 16. Figure 3 As shown. When the ball plug 3 contacts the sealing ring 16, the ball plug 3 blocks the sealing ring 16, and the hollow area of the sealing ring 16 is in a closed state, as shown. Figure 4 As shown.
[0050] Under normal circumstances, the bottle 5 is in an upright position, and the ball stopper 3 is located at the limiting structure 17 under the action of gravity. The user can remove the plug 2, then insert the liquid suction tube through the through hole and extend it into the liquid guide tube 15. The outer diameter of the liquid suction tube is approximately the same as the inner diameter of the liquid guide tube 15. Start the liquid suction mechanism at the outer end of the liquid suction tube, and the liquid in the bottle 5 enters the sealing cavity 19 through the liquid inlet 18, and then enters the liquid suction tube through the sealing ring 16. During the liquid suction, air enters the bottle 5 through the air hole 14 to achieve air pressure balance. Without the matching liquid extraction components (including the extraction tube and extraction mechanism), it is impossible to pour the liquid out of the cap simply by tilting the bottle 5. This is because when the bottle 5 is tilted, the ball stopper 3 moves to the top of the sealing cavity 19 due to gravity and comes into contact with the sealing ring 16. At this time, the sealing cavity 19 is closed, and the liquid cannot flow into the liquid guide tube 15. Only a very small amount of liquid can flow out from the vent 14. After a certain volume of liquid has flowed out, a negative pressure is formed inside the bottle, at which point the liquid stops flowing out. This increases the difficulty of directly pouring out the liquid, thus achieving the anti-theft function.
[0051] like Figure 3 As shown, the liquid guide tube 15 includes at least a first section 151 and a second section 152 connected vertically, the inner diameter of the first section 151 is larger than the inner diameter of the second section 152; the sealing cavity 19 is located below the second section 152.
[0052] In this embodiment, the liquid guide tube 15 has two sections with different inner diameters. The upper end of the first section 151 is connected to the top plate 11 of the cover 1, and the lower end is connected to the upper end of the second section. Therefore, it can be matched with a liquid extraction tube with a different outer diameter, so that the outer wall of the liquid extraction tube is consistent with the inner diameter of a certain section of the liquid guide tube 15, thus avoiding air leakage.
[0053] At least one of the inner circumferential wall of the settling platform 13 and the outer circumferential wall of the plug 2 is provided with a sealing structure to reduce liquid leakage.
[0054] like Figure 3 As shown, specifically, the outer circumferential wall of the plug 2 is provided with elastic ribs 21. After the plug 2 is inserted into the recessed platform 13, the elastic ribs 21 are compressed, filling the gap between them. Furthermore, the inner circumferential wall of the recessed platform 13 is provided with a sealing groove 131. The elastic ribs 21 can enter the sealing groove 131 to achieve an interference fit, increase the contact area, and thus improve the sealing performance.
[0055] like Figure 2As shown, the anti-theft cap also includes an extension tube 4, which is inserted into the liquid guiding tube 15. The lower opening of the extension tube 4 is lower than the lower end of the liquid guiding tube 15. For bottles 5 of different sizes (different depths), the same cap 1 can be used, and then extension tubes 4 of different lengths can be matched, thus making the cap 1 more versatile. The production cost of the extension tube 4 is lower than that of the cap 1, thereby reducing the production cost during product reform.
[0056] like Figures 3-6 As shown, in this embodiment, the tamper-evident cap and the bottle body 5 are connected together by assembly, and after connection, the tamper-evident cap cannot be separated from the bottle body 5 without damaging the tamper-evident cap. The recessed platform 13 is provided on the top plate 11, and the circumferential side plate 12 is provided with an internal thread 121 and a first ratchet 122; the internal thread 121 is used to connect with the external thread 51 at the bottle mouth on the bottle body 5, so that the tamper-evident cap can be locked with the bottle body 5 after rotating in the forward direction; the first ratchet 122 is used to stop the second ratchet 52 provided at the bottle mouth, and the first ratchet 122 and the second ratchet 52 are inclined in opposite directions to prevent the tamper-evident cap from rotating in the opposite direction relative to the bottle body 5.
[0057] The first thread is positioned higher, and the first ratchet 122 is positioned lower. The inner diameter of the area enclosed by the first ratchet 122 is larger than the outer diameter of the external thread 51 at the bottle opening, preventing the first ratchet 122 from interfering with the external thread 51. The bottle opening is inserted into the cap 1, and then the cap 1 is rotated clockwise to lock the internal and external threads 51. During the locking process, the first ratchet 122 can pass over the second ratchet 52. When rotated to the correct position, the second ratchet 52 stops the first ratchet 122, preventing the tamper-evident cap from rotating in the opposite direction. Figure 6 As shown.
[0058] like Figure 3 As shown, a downwardly protruding annular sealing sidewall 111 is provided below the top plate 11. The annular sealing sidewall 111 is interference-fitted with the inner wall of the opening of the bottle body 5 to achieve a sealing function.
[0059] The liquid extraction assembly that is used with the anti-theft cap includes a liquid extraction tube and a liquid extraction mechanism (such as a pump body). The pump body can be a manual or electric pump body. The operating principle of the liquid extraction mechanism is existing technology. It can create a negative pressure in the liquid guide tube 15 to draw out the liquid in the bottle body 5.
[0060] Example 1
[0061] The anti-theft container provided by this utility model includes a bottle body 5 and the aforementioned anti-theft cap. The anti-theft cap has an internal thread 121 and a first ratchet 122, and the bottle body 5 is provided with an external thread 51 and a second ratchet 52.
[0062] Example 2
[0063] The anti-theft container provided by this utility model includes a bottle body 5 and the aforementioned anti-theft cap. The difference from Embodiment 1 is that the anti-theft cap in this embodiment does not have an internal thread 121 and a first ratchet 122, and the bottle body 5 does not have an external thread 51 and a second ratchet 52.
[0064] The tamper-evident cap is connected to the bottle body 5 by adhesive; or, the tamper-evident cap is welded to the bottle body 5.
[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. An anti-theft cover, characterized in that, include: The cover (1), plug (2), and ball plug (3) are provided. The top plate (11) of the cover (1) is provided with a recessed platform (13). The bottom surface of the platform (13) is provided with a through hole penetrating the bottom surface of the platform (13). The side wall of the platform (13) is provided with an air hole (14) penetrating its inner and outer walls. The plug (2) is connected to the platform (13) and is used to seal the through hole. A liquid guide tube (15) is provided below the through hole. A sealing ring (16) and a limiting structure (17) are provided on the inner wall of the liquid guide tube (15). The limiting structure (17) is located below the sealing ring (16), and the gap between the two forms a sealing cavity (19). The sealing ring (16) can prevent the liquid drawing tube from entering the sealing cavity (19). An inlet hole (18) is provided on the side wall of the liquid guide tube (15) to connect the inside and outside of the sealing cavity (19). The inlet hole (18) is located between the sealing ring (16) and the limiting structure (17). The ball plug (3) is rolled in the sealing cavity (19), and when the ball plug (3) contacts the limiting structure (17), the liquid inlet (18) and the hollow area of the sealing ring (16) are in a connected state, and when the ball plug (3) contacts the sealing ring (16), the hollow area of the sealing ring (16) is in a closed state.
2. The anti-theft cover according to claim 1, characterized in that, The liquid guide tube (15) includes at least a first section (151) and a second section (152) connected vertically, wherein the inner diameter of the first section (151) is larger than the inner diameter of the second section (152); The sealed cavity (19) is located below the second segment (152).
3. The anti-theft cover according to claim 2, characterized in that, The air hole (14) is disposed on the bottom surface of the recessed platform (13) and is coplanar with the through hole; At least one of the inner circumferential wall of the sinking platform (13) and the outer circumferential wall of the plug (2) is provided with a sealing structure.
4. The anti-theft cover according to claim 3, characterized in that, The circumferential outer wall of the plug (2) is provided with elastic ribs (21) so that the plug (2) and the sink (13) are in an interference fit.
5. The anti-theft cover according to claim 4, characterized in that, A sealing groove (131) is provided on the circumferential inner wall of the sinking platform (13).
6. The anti-theft cover according to claim 1, characterized in that, The anti-theft cover also includes an extension tube (4), which is inserted into the liquid guide tube (15), and the lower end opening of the extension tube (4) is lower than the lower end of the liquid guide tube (15).
7. The anti-theft cover according to any one of claims 1-6, characterized in that, The cover (1) includes a top plate (11) and a circumferential side plate (12) connected to each other. The recess (13) is disposed on the top plate (11). The circumferential side plate (12) is provided with an internal thread (121) and a first ratchet (122). The internal thread (121) is used to connect with the external thread (51) at the bottle mouth on the bottle body (5) so that the anti-theft cap is locked with the bottle body (5) after rotating in the forward direction; The first ratchet (122) is used to stop the second ratchet (52) provided at the bottle mouth. The first ratchet (122) and the second ratchet (52) are inclined in opposite directions to prevent the anti-theft cap from rotating in the opposite direction relative to the bottle body (5).
8. The anti-theft cover according to claim 7, characterized in that, The top plate (11) is provided with a downward protruding annular sealing sidewall (111) below it, and the annular sealing sidewall (111) is interference-fitted with the inner wall of the opening of the bottle body (5).
9. An anti-theft container, characterized in that, Includes the bottle body (5) and the anti-theft cap as described in claim 6 or 7.
10. An anti-theft container, characterized in that, Includes a bottle body (5) and an anti-theft cap as described in any one of claims 1-6, wherein the anti-theft cap is connected to the bottle body (5) by an adhesive; or, the anti-theft cap is welded to the bottle body (5).