Suction cups for containers

Abstract

We provide a container suction cup with a simple structure, easy assembly, and long lifespan. [Solution] A suction cup for a container including an end cap 1, characterized in that a rubber suction cup 3 is provided below a base 2 that engages with the bottom of the cap, a fixing seat 4 having an air intake is provided below the suction cup, a recess 6 with a slope is provided in the end cap, a plurality of ventilation grooves are formed on the outside, and the slope is in contact with an annular slope formed on the upper end of the rubber suction cup.

Description

Technical Field

[0001] The present invention belongs to the field of suction cup technology, and particularly refers to a suction cup for containers.

Background Art

[0002] Currently, there is no base structure for fixing to the bottom of existing containers, and they are easily toppled by lateral forces, with a risk of liquid leakage from the containers and difficulty in stable use.

[0003] In a Chinese patent (publication number CN216907519U), a base structure is disclosed. According to the search results, this is the closest example to the existing technology. In short, the structure in the existing technology is complex, and a sliding connection by a slide rail and a slide slot is required between the base cover and the base body. Also, the rubber suction cup adopts a double structure up and down, but with long-term use, the small suction cup that abuts against the lower end surface of the base cover is easily damaged, resulting in the loss of the adsorption effect and a short service life.

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a suction cup for containers with a simple structure, easy assembly, and long service life.

Means for Solving the Problems

[0005] The object of the present invention is achieved as follows. A suction cup for containers including an end cap. There is a base that engages under the cap, a rubber suction cup is provided under the base, and a fixing seat having an air inlet is provided under the suction cup; a recess on an inclined surface is opened on the end cap, and a plurality of ventilation grooves are formed outside the recess; the inclined surface is in contact with an annular inclined surface one formed on the upper end of the rubber suction cup.

[0006] Preferably, a positioning ring is formed under the end cap, and its inner wall is in contact with the outside of the upper end of the rubber suction cup.

[0007] Preferably, the recess is positioned within a positioning groove provided in the fixed base.

[0008] Preferably, an annular projection is formed on the outside of the fixing base, and this projection is housed in a positioning groove provided in a rubber suction cup.

[0009] Preferably, the annular projection 1 is connected to an annular recess 1 provided beneath the base, with a rubber suction cup attached to its upper part by ultrasonic welding.

[0010] Preferably, an annular recess 2 is provided on the upper end surface of the fixed base, and the rubber suction cup is attached to this annular recess 2.

[0011] Preferably, annular recesses 3 and 4 are provided at the upper end of the rubber suction cup, respectively, and engage with annular projections 2 and 3 formed beneath the base.

[0012] Preferably, a sleeve is formed beneath the end cap, and a plurality of sliding grooves are provided therein; these sliding grooves engage with a plurality of clips formed in the base.

[0013] Preferably, a guide block is molded outside the base, and the guide block is fitted into a guide slot provided beneath the end cover.

[0014] Preferably, an annular projection 4 is formed beneath the base, and the inner diameter of the projection 4 is larger than the diameter of the rubber suction cup.

[0015] Preferably, the end cover comprises an upper end cover and a lower end cover, each having an opening in the center, with an annular projection 5 formed inside the upper end cover, and this projection 5 fitting into an annular recess 5 provided outside the lower end cover. [Effects of the Invention]

[0016] This invention offers significant and effective technical advantages compared to conventional technologies: The suction cup structure is simple, and by attaching the suction cup to the bottom of the container, the weight of the container expels the air inside the rubber suction cup, and the inclined surface and annular inclined surface come into contact with each other to form a sealed space, enabling the suction cup to adhere; To open the suction cup, the user only needs to pull the container upwards; at this time, the end cap moves upward, separating the inclined surface and annular inclined surface, allowing outside air to flow through the sleeve to the bottom of the suction cup, thus enabling the suction cup to open; the structure is simple, easy to use, and has a long lifespan. [Brief explanation of the drawing]

[0017] [Figure 1] Figure 1 is a schematic diagram of the structure of the present invention. [Figure 2] Figure 2 is a cross-sectional view 1 of the present invention. [Figure 3] Figure 3 is a cross-sectional view 2 of the present invention. [Figure 4] Figure 4 shows the explosion diagram 1 of the present invention. [Figure 5] Figure 5 shows the explosion diagram 2 of the present invention.

[0018] [Modes for carrying out the invention]

[0019] The present invention will be further explained below with reference to specific examples. As shown in Figures 1-5, this is a suction cup for a container including a lid (1); a rubber suction cup (3) is provided below a base (2) that engages with the lid, and a fixed seat (4) with an air intake is provided below the suction cup (3); a recess (6) with a bevel (5) is provided in the end lid (1), and a plurality of ventilation grooves (7) are formed on the outside; the bevel (5) is in contact with an annular bevel (8) formed on the upper end of the rubber suction cup (3).

[0020] The suction cup of this technical solution can achieve suction by simply having the upper end of the rubber suction cup 3 and the end cap 1 in contact with each other to seal the space; it has a simple structure, a long service life, and the air intake provided on the fixed seat 4 has a certain curvature to prevent external dust from entering the suction cup and clogging the ventilation groove 7, thus preventing it from affecting the use of the suction cup.

[0021] Preferably, a positioning ring 30 is formed under the end cap (1), and its inner wall contacts the outside of the upper end of the rubber suction cup (3); when the positioning ring 30 is not provided, the upper part of the rubber suction cup 3 warps outward, allowing air to enter the suction cup, making it easy to lose suction; by providing the positioning ring 30, the rubber suction cup 3 is pressed against the positioning ring 30, and the upper annular inclined surface 8 and the inclined surface 5 are in close contact, preventing external air from entering the suction cup 3, ensuring the realization of the suction of the suction cup, and achieving a stable structure and a long service life.

[0022] Preferably, the concave part (6) is arranged in the positioning groove (9) provided on the fixed seat (4); the ventilation groove 7 is provided outside the concave part 6, and a space is formed between the fixed seat 4, the concave part 6, and the rubber suction cup 3. This space and the ventilation groove 7 are connected. When air flows into this space, it flows into the base of the rubber suction cup 3 through the ventilation groove 7, enabling the opening and closing of the suction cup; when the inclined surface 5 and the annular inclined surface 8 contact each other, the concave part 6 still does not contact the base of the positioning groove 9, leaving a gap between them, facilitating the entry and exit of air.

[0023] Preferably, an annular protrusion 10 is formed outside the fixed seat 4, and this protrusion 10 penetrates and fits into the limiting groove 11 provided on the rubber suction cup 3. By joining with the limiting groove 11, the structure of the fixed seat 4 and the rubber suction cup 3 becomes more stable and the service life becomes longer.

[0024] Preferably, the annular projection (10) is connected to an annular recess (12) provided below the base (2) with a rubber suction cup (3) attached to its upper part by ultrasonic welding; the rubber suction cup 3 and the fixing seat 4 are connected to the base 2 by ultrasonic welding, integrating the three together; as the base 2 moves, the rubber suction cup 3 also moves accordingly, achieving the air-closing and air-venting effects of the rubber suction cup 3.

[0025] Preferably, an annular recess 2 13 is provided on the fixed base 4, and the rubber suction cup 3 is attached to this annular recess 2 13. By connecting the rubber suction cup 3 and the fixed base 4 via the annular recess 2 13, the structure becomes more stable, airtightness is improved, and the service life is extended.

[0026] Preferably, the upper end of the rubber suction cup (3) is provided with annular recesses 3 (133) and 4 (14), respectively, which engage with annular projections 2 (144) and 3 (155), respectively, formed beneath the base (2); the engagement of annular recesses 3 (133) and 4 (14) with annular projections 2 (144) and 3 (155) makes the connection between the rubber suction cup 3 and the base 2 more stable, improves airtightness, and extends the service life.

[0027] Preferably, a sleeve (16) is formed beneath the end cap (1), and a plurality of slide grooves (15) are formed inside this sleeve (16), and the slide grooves (15) engage with a plurality of clips (17) formed on the base; by using the slide grooves 15 and clips 17, the position of the base 2 can be fixed, rotation during sliding can be prevented, the structure is stable and the service life is extended.

[0028] Preferably, a guide block (18) is molded outside the base (2) and fits into a guide slot (19) provided beneath the end cover (1); the installation of the guide block 18 and guide slot 19 makes the connection structure between the base 2 and the end cover 1 more stable and improves the structural strength.

[0029] Preferably, an annular projection 4 (20) is formed beneath the base (2), and the inner diameter of the projection 4 (20) is larger than the diameter of the rubber suction cup (3); this configuration improves the integrity of the suction cup and makes the appearance more aesthetically pleasing, as the rubber suction cup 3 completely retracts into the base 2 when pressed.

[0030] Preferably, the end cover (1) comprises an upper end cover (21) and a lower end cover (22) having an opening in the center, with an annular projection 5 (23) formed on the inner wall of the upper end cover (21) and this projection 5 (23) fitting into an annular recess 5 (24) provided on the outer wall of the lower end cover (22); the upper end cover 21 and the lower end cover 22 are removable, making the structure more complete and making it easier to replace parts; the upper end cover 21 functions as the base of the container, allowing the suction cup to be easily and quickly attached to any container, and the structure is stable.

[0031] Mechanism and Principle A suction cup is attached to the base of the container, and the weight of the container expels the air inside the rubber suction cup 3, causing the inclined surface 5 and the annular inclined surface 8 to come into contact with each other, forming a sealed space and causing the suction cup to adhere; to remove the suction cup, simply pull the container upward, and the end cap 1 moves upward, separating the inclined surface 5 and the annular inclined surface 8, allowing outside air to enter through the sleeve 16 and flow through the ventilation groove 7 to the bottom of the rubber suction cup, thus releasing the suction cup; the structure is simple, easy to use, and has a long lifespan.

[0032] The embodiments described above are merely relatively excellent embodiments of the present invention and do not limit the scope of protection of the present invention. Therefore, all equal modifications made based on the structure, shape, and principle of the present invention should be included within the scope of protection of the present invention.

Claims

1. A suction cup for a container including an end cap (1), wherein a rubber suction cup (3) is provided below a base (2) that engages with the bottom of the cap, and a fixed seat (4) having an air intake is provided below the suction cup (3), characterized in that a recess (6) with a slope (5) is provided in the end cap (1), and a plurality of ventilation grooves (7) are formed on the outside, and the slope (5) is in contact with an annular slope (8) formed on the upper end of the rubber suction cup (3). A suction cup for containers characterized by the following features.

2. A positioning ring (30) is molded beneath the end cap (1), and its inner wall is in contact with the outside of the upper end of the rubber suction cup (3). A suction cup for a container according to claim 1, characterized by its features.

3. The aforementioned recess (6) is located within a positioning groove (9) provided in the fixed seat (4). A suction cup for a container according to claim 1, characterized by its features.

4. An annular projection (10) is formed on the outside of the fixing base (4), and is fitted through a positioning groove (11) provided in the rubber suction cup (3). A suction cup for a container according to claim 3, characterized in that it is a suction cup for a container.

5. The annular projection (10) is equipped with a rubber suction cup (3) by ultrasonic welding and is connected to an annular recess (12) located beneath the base (2). A suction cup for a container according to feature 4.

6. An annular recess 2 (13) is provided on the aforementioned fixing base (4), and the rubber suction cup (3) is installed inside the annular recess 2 (13). A suction cup for a container according to claim 5, characterized in that it is a suction cup for a container.

7. An annular recess 3 (133) and an annular recess 4 (14) are provided at the upper end of the rubber suction cup (3), respectively, and these engage with annular projections 2 (144) and 3 (155) molded beneath the base (2). A suction cup for a container according to claim 6.

8. A sleeve (16) is formed beneath the end cap (1), and a plurality of slide grooves (15) are formed inside this sleeve (16), and the slide grooves (15) engage with a plurality of clips (17) formed on the base. A suction cup for a container according to claim 1, characterized by its features.

9. A guide block (18) is molded outside the base (2), and the guide block (18) fits into a guide slot (19) provided below the end cover (1). An annular projection (20) is molded below the base (2), and the inner diameter of the annular projection (20) is larger than the diameter of the rubber suction cup (3). A suction cup for a container according to claim 1, characterized by its features.

10. The end cover (1) comprises an upper end cover (21) and a lower end cover (22) having an opening in the center, with an annular projection 5 (23) formed on the inner wall of the upper end cover (21), and this annular projection 5 (23) fits into an annular recess 5 (24) provided on the outer wall of the lower end cover (22). A suction cup for a container according to claim 1, characterized by its features.

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