A suction cup for a container

Abstract

The present application belongs to the technical field of suction cups, in particular to a suction cup for a container, comprising an end cover, a base clamped below the end cover, a rubber suction cup arranged below the base, and a fixing base arranged below the rubber suction cup, a groove with an inclined surface is formed on the end cover, a plurality of air vent grooves are formed on the outer wall of the groove, and the inclined surface abuts with an annular inclined surface formed on the upper end of the rubber suction cup. The purpose of the present application is to provide a suction cup for a container with simple structure, convenient assembly and long service life.

Description

Technical Field

[0001] This invention belongs to the field of suction cup technology, specifically referring to a suction cup used for containers. Background Technology

[0002] Currently, existing containers lack a base structure at the bottom to secure them, making them susceptible to tipping over due to lateral forces, which can cause liquid to spill and hinder stable use.

[0003] Chinese patent discloses a base structure, publication number CN216907519U. Through searching, the above is the closest case to the prior art. In summary, the problems with the prior art are: complex structure, the base cover and the base body need to be slidably connected by slide rails and slide grooves, and the rubber suction cup adopts a double suction cup mode. However, after long-term use, the small suction cup used to abut against the lower end of the base cover is easily damaged, resulting in the suction cup having no adsorption effect and a short service life. Summary of the Invention

[0004] The purpose of this invention is to provide a suction cup for containers that is simple in structure, easy to assemble, and has a long service life.

[0005] The objective of this invention is achieved as follows: a suction cup for a container includes an end cap, a base snapped onto the bottom of the end cap, a rubber suction cup disposed below the base, and a fixing seat disposed below the rubber suction cup and having an air inlet. The end cap has a groove with an inclined surface, and the outer wall of the groove is formed with a plurality of ventilation grooves. The inclined surface abuts against an annular inclined surface formed at the upper end of the rubber suction cup.

[0006] Preferably, a limiting ring is formed at the lower end of the end cap, and the inner wall of the limiting ring abuts against the outer wall of the upper end of the rubber suction cup.

[0007] Preferably, the groove is disposed within the limiting groove of the fixing seat.

[0008] Preferably, the outer side of the fixing base is formed with an annular protrusion along the circumference, and the annular protrusion passes through the limiting groove opened in the rubber suction cup.

[0009] Preferably, the upper end of the annular protrusion is connected to the annular groove on the lower end face of the base by ultrasonic welding with a rubber suction cup.

[0010] Preferably, the upper end face of the fixing base is provided with an annular groove II, and the rubber suction cup is installed in the annular groove II.

[0011] Preferably, the upper end of the rubber suction cup is provided with annular groove three and annular groove four, which are respectively engaged with annular protrusion two and annular protrusion three formed at the lower end of the base.

[0012] Preferably, a sleeve is formed on the lower end face of the end cap, and a plurality of sliding grooves are formed on the inner wall of the sleeve, the sliding grooves engaging with a plurality of hooks formed on the base.

[0013] Preferably, the outer wall of the base is formed with a guide block, which is adapted to the guide groove opened on the lower end face of the end cover.

[0014] Preferably, the lower end face of the base is formed with an annular protrusion four, the inner diameter of which is larger than the diameter of the rubber suction cup.

[0015] Preferably, the end cap includes an upper end cap with an opening at the center and a lower end cap. The inner wall of the upper end cap is formed with an annular protrusion five, which engages with an annular groove five on the outer wall of the lower end cap.

[0016] Preferably, the upper outer wall of the rubber suction cup is formed with an annular sealing protrusion, which abuts against the lower end face of the lower end cover.

[0017] Preferably, the lower end cover has a plurality of limiting holes, which are engaged with the limiting blocks formed on the upper end of the guide block.

[0018] The outstanding and beneficial technical effects of this invention compared to the prior art are as follows: The suction cup structure of this invention for containers is simple. The suction cup is installed at the bottom of the container. Due to the weight of the container, the air inside the rubber suction cup is emptied, and the inclined surface and the annular inclined surface abut against each other to form a sealed space, thus achieving suction cup adsorption. If the suction cup needs to be removed, the user only needs to lift the container upwards. As the end cap moves upwards, the inclined surface and the annular inclined surface separate. External air enters through the sleeve and enters below the rubber suction cup through the ventilation groove, thus enabling the suction cup to be opened. The structure is simple, easy to use, and has a long service life. Attached Figure Description

[0019] Figure 1 This is a simplified structural diagram of a basic embodiment of the present invention; Figure 2 This is one of the cross-sectional views of a basic embodiment of the present invention; Figure 3 This is a second cross-sectional view of a basic embodiment of the present invention; Figure 4 This is one of the exploded views of the basic embodiment of the present invention; Figure 5 This is the second exploded view of the basic embodiment of the present invention; Figure 6 This is a cross-sectional view of an improved embodiment of the present invention; Figure 7 This is an exploded view of an improved embodiment of the present invention. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments.

[0021] Example 1: Basic embodiment, fully described in the prior application, supporting priority claims 1-8, as follows. Figure 1-5 As shown, a suction cup for a container includes an end cap 1, a base 2 snapped below the end cap 1, a rubber suction cup 3 disposed below the base 2, and a fixing seat 4 disposed below the rubber suction cup 3 and having an air inlet. The end cap 1 has a groove 6 with an inclined surface 5, and the outer wall of the groove 6 is formed with several ventilation grooves 7. The inclined surface 5 abuts against the annular inclined surface 8 formed at the upper end of the rubber suction cup 3.

[0022] The suction cup of this technical solution can achieve space sealing by simply having the upper end of the rubber suction cup 3 abut against the end cap 1, thereby achieving suction. Its structure is simple and has a long service life. The air inlet set on the fixed base 4 has a certain curvature, which is to prevent external dust from entering the suction cup and causing the ventilation groove 7 to become blocked, thus affecting the use of the suction cup.

[0023] Preferably, a limiting ring 30 is formed at the lower end of the end cap 1, and the inner wall of the limiting ring 30 abuts against the outer wall of the upper end of the rubber suction cup 3. Without the limiting ring 30, the upper end of the rubber suction cup 3 is prone to flipping outward, allowing air to enter the rubber suction cup 3, preventing the suction cup from adsorbing. With the limiting ring 30, the rubber suction cup 3 is held in place, causing the annular inclined surface 8 and inclined surface 5 at the upper end of the rubber suction cup 3 to abut against each other, preventing external air from entering the rubber suction cup 3, thus achieving suction adsorption. Its structure is stable and has a long service life.

[0024] Preferably, the groove 6 is disposed within the limiting groove 9 opened in the fixing seat 4. The ventilation groove 7 is disposed on the outer wall of the groove 6. A space is formed between the fixing seat 4, the groove 6, and the rubber suction cup 3. This space is connected to the ventilation groove 7. When air enters the space, it can enter the bottom of the rubber suction cup 3 through the ventilation groove 7, thereby opening the suction cup. When the inclined surface 5 and the annular inclined surface 8 abut against each other, the groove 6 has not yet touched the bottom of the limiting groove 9, leaving a gap between them to facilitate the entry and exit of air.

[0025] Preferably, the outer side of the fixing base 4 is formed with an annular protrusion 10 along the circumference, and the annular protrusion 10 passes through the limiting groove 11 opened in the rubber suction cup 3. The connection between the annular protrusion 10 and the limiting groove 11 makes the structure of the fixing base 4 and the rubber suction cup 3 more stable and extends its service life.

[0026] Preferably, the upper end of the annular protrusion 10 is connected to the annular groove 12 on the lower end face of the base 2 via ultrasonic welding, with the rubber suction cup 3 attached. The rubber suction cup 3 and the fixing seat 4 are connected to the base 2 by ultrasonic welding, making the three a whole. When the base 2 moves, the rubber suction cup 3 moves with it, achieving the effect of airtightness and ventilation of the rubber suction cup 3.

[0027] Preferably, the upper surface of the fixing base 4 is provided with an annular groove 13, and the rubber suction cup 3 is installed in the annular groove 13. The connection between the rubber suction cup 3 and the fixing base 4 through the annular groove 13 makes the structure more stable, the airtightness better, and the service life longer.

[0028] Preferably, the upper end of the rubber suction cup 3 is provided with annular groove 3 133 and annular groove 4 14, which are respectively engaged with annular protrusion 2 144 and annular protrusion 3 155 formed at the lower end of the base 2. The engagement of annular groove 3 133 and annular groove 4 14 with annular protrusion 2 144 and annular protrusion 3 155 makes the connection between the rubber suction cup 3 and the base 2 more stable, improves airtightness, and extends service life.

[0029] Preferably, a sleeve 16 is formed on the lower end face of the end cap 1, and a plurality of sliding grooves 15 are formed on the inner wall of the sleeve 16. The sliding grooves 15 engage with a plurality of hooks 17 formed on the base. The position of the base 2 can be limited by the sliding grooves 15 and the hooks 17, preventing the base 2 from rotating during sliding, resulting in a stable structure and a long service life.

[0030] Preferably, the outer wall of the base 2 is formed with a guide block 18, which is adapted to the guide groove 19 opened on the lower end face of the end cover 1. The arrangement of the guide block 18 and the guide groove 19 makes the connection structure between the base 2 and the end cover 1 more stable and the structural strength higher.

[0031] Preferably, the lower end face of the base 2 is formed with an annular protrusion 20, the inner diameter of which is larger than the diameter of the rubber suction cup 3. This design improves the overall integrity of the suction cup, allowing it to retract into the base 2 when pressed, resulting in a more aesthetically pleasing appearance.

[0032] Preferably, the end cap 1 includes an upper end cap 21 with an opening at its center and a lower end cap 22. The inner wall of the upper end cap 21 is formed with an annular protrusion 23, which engages with an annular groove 24 on the outer wall of the lower end cap 22. The upper end cap 21 and the lower end cap 22 are detachable, resulting in a more complete structure and easier replacement of parts. The upper end cap 21 serves as a container base, enabling the suction cup to be connected to any container more easily and quickly, and the structure is stable.

[0033] Example 2: Improved Example, corresponding to the addition of claims 9 and 10. This example includes all the basic structures of Example 1, and adds two improved structures, such as... Figure 6-7 As shown: Preferably, the upper outer wall of the rubber suction cup 3 is formed with an annular sealing protrusion 40, which abuts against the lower end face of the lower end cover 22. Adding an additional annular sealing protrusion 40 on top of the abutment between the rubber suction cup 3 and the lower end cover 22 achieves a double sealing connection, ensuring airtightness, even air pressure distribution, preventing localized deformation of the rubber suction cup, and enhancing adsorption stability.

[0034] Preferably, the lower end cap 22 has several limiting ports 50, which engage with the limiting blocks 60 formed on the upper end of the guide block 18. The engagement of the limiting ports 50 and the limiting blocks 60 completely prevents relative rotation between the base 2 and the end cap; ensuring that the air inlet channel of the end cap vent 7 and the sleeve 16 is always aligned with the cavity of the rubber suction cup 3, preventing misalignment of the air passage and failure of the seal due to torsion, and stably maintaining the adsorption and pressure relief functions.

[0035] Working principle: The suction cup is installed at the bottom of the container. Due to the weight of the container, the air inside the rubber suction cup 3 is emptied, and the inclined surface 5 and the annular inclined surface 8 abut against each other to form a sealed space, thus achieving the suction cup adsorption. If you need to remove the suction cup, the user only needs to lift the container upwards. As the end cap 1 moves upwards, the inclined surface 5 and the annular inclined surface 8 separate. External air enters through the sleeve 16 and enters below the rubber suction cup through the ventilation groove 7, thus enabling the suction cup to be opened. The structure is simple, easy to use, and has a long service life.

[0036] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A suction cup for a container, comprising an end cap (1), a base (2) snapped onto the underside of the end cap (1), a rubber suction cup (3) disposed below the base (2), and a fixing seat (4) disposed below the rubber suction cup (3) and having an air inlet, characterized in that, The end cap (1) has a groove (6) with an inclined surface (5), and the outer wall of the groove (6) is formed with several ventilation grooves (7). The inclined surface (5) abuts against the annular inclined surface (8) formed at the upper end of the rubber suction cup (3).

2. The suction cup for a container according to claim 1, characterized in that, The lower end of the end cap (1) is formed with a limiting ring (30), and the inner wall of the limiting ring (30) abuts against the outer wall of the upper end of the rubber suction cup (3).

3. The suction cup for a container according to claim 1, characterized in that, The groove (6) is set in the limiting groove (9) opened in the fixed seat (4).

4. The suction cup for a container according to claim 3, characterized in that, The outer side of the fixed base (4) is formed with an annular protrusion (10) along the circumference. The annular protrusion (10) passes through the limiting groove (11) opened in the rubber suction cup (3). The upper end of the annular protrusion (10) is connected to the annular groove (12) opened on the lower end face of the base (2) by ultrasonic welding with the rubber suction cup (3). The upper end face of the fixed base (4) is provided with an annular groove (13), and the rubber suction cup (3) is installed in the annular groove (13).

5. The suction cup for a container according to claim 4, characterized in that, The upper end of the rubber suction cup (3) is provided with annular groove three (133) and annular groove four (14), respectively. The annular groove three (133) and annular groove four (14) are respectively engaged with the annular protrusion two (144) and annular protrusion three (155) formed at the lower end of the base (2).

6. The suction cup for a container according to claim 1, characterized in that, The lower end face of the end cap (1) is formed with a sleeve (16), and the inner wall of the sleeve (16) is formed with a plurality of sliding grooves (15), which are engaged with a plurality of hooks (17) formed on the base.

7. The suction cup for a container according to claim 1, characterized in that, The outer wall of the base (2) is formed with a guide block (18), which is adapted to the guide groove (19) opened on the lower end face of the end cap (1); the lower end face of the base (2) is formed with an annular protrusion (20), the inner diameter of the annular protrusion (20) is larger than the diameter of the rubber suction cup (3).

8. The suction cup for a container according to claim 1, characterized in that, The end cap (1) includes an upper end cap (21) with an opening at the center and a lower end cap (22). The inner wall of the upper end cap (21) is formed with an annular protrusion (23), which engages with an annular groove (24) on the outer wall of the lower end cap (22).

9. The suction cup for a container according to claim 1, characterized in that, The upper outer wall of the rubber suction cup (3) is formed with an annular sealing protrusion (40), which abuts against the lower end face of the lower end cover (22).

10. The suction cup for a container according to claim 9, characterized in that, The lower end cover (22) is provided with several limiting ports (50), and the limiting ports (50) are engaged with the limiting block (60) formed on the upper end of the guide block (18).

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