Self-venting chuck base

Abstract

The utility model relates to the technical field of sucking disc base, specifically relates to a self exhaust sucking disc base, adopts sucking disc base plate, base plate pull rod and disc cover, and the bottom surface of sucking disc base plate is through exhaust passage to the outer wall of base plate pull rod, further adopts the one-way valve set in the middle part of exhaust passage or exhaust passage end and the reinforcing sealing mechanism set in the exhaust passage end, the self exhaust sucking disc base is applied to sucking disc overall use, if the sucking disc bottom exists concave uneven, forcibly presses sucking disc, makes the air of sucking disc bottom to be discharged outward through exhaust passage, avoids sucking disc and the middle air of being adsorbed surface to be trapped more, then, after the base plate pull rod is pulled by external force, the base plate pull rod rises and is close to disc cover, and the reinforcing sealing mechanism cooperates with disc cover to reinforce the exhaust passage sealing, and the one-way valve avoids the air backflow to the space between sucking disc and the surface to be adsorbed through exhaust passage and leads to sucking disc adsorption not firm.

Description

Technical Field

[0001] This utility model relates to the field of suction cup base technology, specifically to a self-venting suction cup base. Background Technology

[0002] A suction cup is typically a type of attachment that uses the difference in atmospheric pressure to adhere to an object, or a tool for grasping objects.

[0003] Suction cup phone holders, which could only adhere to smooth glass surfaces years ago, have seen a surge in demand as car ownership has increased. Developers have then developed suction cup holders with adhesive backing to adhere to textured surfaces, allowing users to attach their phones to dashboards and expanding their usability. However, consumers soon discovered that some suction cups didn't hold firmly and detached quickly, while others failed to hold properly when repositioned. The reason for this is that suction cups work on atmospheric pressure. The bottom of the suction cup must first adhere tightly to the surface being adhered to. Then, the holder mechanism uses external force to pull the center of the suction cup up, creating a vacuum between the bottom of the suction cup and the surface being adhered to. The outer surface of the suction cup, furthest from the surface, is then subjected to atmospheric pressure. Atmospheric pressure allows the suction cup to adhere firmly to the surface it is attached to. The less air is between the bottom of the suction cup and the surface it is attached to, the higher the vacuum level between them, and the stronger the atmospheric pressure on the outer surface of the suction cup, resulting in a stronger adhesion. Conversely, if there is air between the bottom of the suction cup and the surface it is attached to, the air inside will counteract the external atmospheric pressure, weakening the adhesion. The more air between the bottom of the suction cup and the surface it is attached to, the weaker the adhesion. When the bottom of the suction cup becomes uneven due to various reasons (especially when the suction cup bottom is easily uneven after one use), the suction cup and the surface it is attached to cannot fit perfectly, trapping a lot of air. In addition, the strong sealing effect of the adhesive soft glue around the suction cup prevents the air trapped in the middle of the bottom of the suction cup from escaping, resulting in a weak adhesion. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a self-venting suction cup base.

[0005] The purpose of this utility model is achieved through the following technical solution: a self-venting suction cup base, including a suction cup base, a base rod fixedly connected to the top of the suction cup base, and a disc cover covering the top of the suction cup base and the top of the base rod. An exhaust channel is provided from the bottom surface of the suction cup base to the outer wall of the base rod. The self-venting suction cup base also includes a one-way valve disposed in the middle or at the end of the exhaust channel, and a reinforcing and sealing mechanism disposed at the end of the exhaust channel. The reinforcing and sealing mechanism is used to cooperate with the disc cover to reinforce and seal the exhaust channel.

[0006] Preferably, when the end of the exhaust channel is located at the top of the chassis tie rod, the middle part of the chassis tie rod has a cavity for accommodating a one-way valve, and the reinforcing sealing mechanism is located at the top of the chassis tie rod.

[0007] Preferably, the reinforcing sealing mechanism includes a first sealing plug fixedly covering the top of the chassis tie rod. The first sealing plug has a first vent hole that communicates with the exhaust channel. The first sealing plug is surrounded by an annular protrusion at the top of the first vent hole. When the chassis tie rod is pulled up by an external force, the annular protrusion seals and presses against the inner top wall of the cover.

[0008] Preferably, the inner top wall of the disc cover is fitted with a second sealing gasket. When the chassis pull rod is pulled up by external force, the annular protrusion and the second sealing gasket of the disc cover are sealed and pressed together.

[0009] Preferably, the one-way valve includes a first sealing gasket housed at the bottom of the cavity and a compression spring sandwiched between the first sealing gasket and the reinforcing sealing mechanism.

[0010] Preferably, the exhaust channel of the suction cup chassis extends into the cavity, and the first sealing gasket abuts against the top surface of the exhaust channel of the suction cup chassis.

[0011] The reinforced sealing mechanism includes a cover fixedly installed on the top of the chassis tie rod, and a movable column housed in the cavity and abutting against the top of the compression spring. The cover has a clearance through hole, and the movable column passes through the clearance through hole. When the chassis tie rod is pulled up by an external force, the movable column presses against the inner top wall of the cover to compress the compression spring.

[0012] In another preferred embodiment, when the end of the exhaust passage is located on the outer wall of the chassis tie rod, the one-way valve is disposed on the outer wall of the chassis tie rod, and the reinforcing sealing mechanism is disposed at the end of the exhaust passage and fixed to the one-way valve.

[0013] Preferably, the one-way valve includes a resilient valve core tube sleeved on the outer wall of the chassis tie rod and covering the end of the exhaust passage.

[0014] Preferably, the reinforced sealing mechanism includes a protrusion fixed to the outer wall of the elastic valve core tube and covering the end of the exhaust passage. When the chassis tie rod is pulled up by an external force, the protrusion seals and presses against the inner wall of the disc cover.

[0015] Preferably, the exhaust channel of the suction cup chassis extends to the outer wall of the chassis tie rod, and the elastic valve core tube abuts against the side end face of the exhaust channel of the suction cup chassis.

[0016] The beneficial effects of this utility model are as follows: The self-venting suction cup base of this utility model adopts a suction cup base, a base pull rod fixedly connected to the top of the suction cup base, and a disc cover covering the top of the suction cup base and the top of the base pull rod. An exhaust channel runs through the bottom surface of the suction cup base to the outer wall of the base pull rod. The self-venting suction cup base also includes a one-way valve disposed in the middle or at the end of the exhaust channel, and a reinforcing and sealing mechanism disposed at the end of the exhaust channel. The reinforcing and sealing mechanism is used to cooperate with the disc cover to reinforce the seal. Exhaust channel; When this self-venting suction cup base is used as a whole suction cup, if there is an uneven concave bottom at the bottom of the suction cup, press the suction cup firmly to allow the air at the bottom of the suction cup to be discharged outward through the exhaust channel, avoiding excessive air trapped between the suction cup and the surface to be absorbed; After pulling the base rod with external force, the base rod rises and approaches the cup cover, and the reinforcing sealing mechanism cooperates with the cup cover to reinforce and seal the exhaust channel, which, together with the one-way valve, prevents air from flowing back between the suction cup and the surface to be absorbed through the exhaust channel, thus preventing the suction cup from adhering firmly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0018] Figure 2 This is an exploded view of Embodiment 1 of this utility model;

[0019] Figure 3 This is a top view of Embodiment 1 of this utility model;

[0020] Figure 4 yes Figure 3 Schematic diagram of the cross section of AA;

[0021] Figure 5 This is a structural schematic diagram of Embodiment 2 of the present invention;

[0022] Figure 6 This is an exploded view of Embodiment 2 of this utility model;

[0023] Figure 7 This is a top view of Embodiment 2 of this utility model;

[0024] Figure 8 yes Figure 7 A schematic diagram of the cross-section of BB;

[0025] Figure 9 This is a structural schematic diagram of Embodiment 3 of the present invention;

[0026] Figure 10 This is an exploded view of embodiment 3 of the present invention;

[0027] Figure 11 This is an exploded view of another perspective of Embodiment 3 of this utility model;

[0028] Figure 12 This is a top view of embodiment 3 of this utility model;

[0029] Figure 13 yes Figure 12 A cross-sectional schematic diagram of CC.

[0030] The attached figures are labeled as follows: 1. Suction cup base; 2. Base pull rod; 3. Disc cover; 4. Exhaust channel; 5. Cavity; 6. First sealing plug; 7. First vent hole; 8. Annular protrusion; 9. Second sealing gasket; 10. First sealing gasket; 11. Compression spring; 12. Elastic valve core tube; 13. Protrusion; 14. Cover; 15. Movable column; 16. Clearance through hole; 17. Second vent hole. Detailed Implementation

[0031] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0032] Example 1

[0033] like Figure 1-4 As shown, a self-venting suction cup base includes a suction cup base 1, a base pull rod 2 fixedly connected to the top of the suction cup base 1, and a disc cover 3 covering the top of the suction cup base 1 and the top of the base pull rod 2. An exhaust channel 4 extends from the bottom surface of the suction cup base 1 to the outer wall of the base pull rod 2. The self-venting suction cup base also includes a one-way valve disposed in the middle or at the end of the exhaust channel 4, and a reinforcing and sealing mechanism disposed at the end of the exhaust channel 4. The reinforcing and sealing mechanism is used to cooperate with the disc cover 3 to reinforce and seal the exhaust channel 4.

[0034] When this self-venting suction cup base is used as part of the suction cup assembly, if the bottom of the suction cup is uneven, pressing the suction cup firmly will allow air at the bottom of the suction cup to escape through the exhaust channel 4, preventing excessive air from being trapped between the suction cup and the surface being adhered to. Then, by pulling the base rod 2 with external force, the base rod 2 rises and approaches the cup cover 3. The reinforcing sealing mechanism works in conjunction with the cup cover 3 to reinforce and seal the exhaust channel 4, preventing air from flowing back between the suction cup and the surface being adhered to, thus ensuring a firm suction cup adhesion. It should be noted that the structure of pulling the base rod 2 upwards is existing technology, such as a rotary suction cup structure or a snap-fit ​​suction cup structure. In this embodiment, a rotary suction cup structure is used for demonstration, and will not be described in detail here.

[0035] In this embodiment, the end of the exhaust channel 4 is located at the top of the chassis tie rod 2, the middle part of the chassis tie rod 2 has a cavity 5 for accommodating a one-way valve, and the reinforcing sealing mechanism is located at the top of the chassis tie rod 2.

[0036] Furthermore, the reinforced sealing mechanism includes a first sealing plug 6 fixedly covering the top of the chassis pull rod 2. The first sealing plug 6 has a first vent hole 7 communicating with the exhaust channel 4. The first sealing plug 6 is surrounded by an annular protrusion 8 at the top of the first vent hole 7. When the chassis pull rod 2 is pulled up by external force, the annular protrusion 8 seals against the inner top wall of the disc cover 3, thereby sealing the end of the exhaust channel 4. This prevents air from entering the first vent hole 7 and the exhaust channel 4 through the gap between the first sealing plug 6 and the disc cover 3. This helps to avoid insufficient unidirectional flow stability of the one-way valve, which could cause air to seep between the suction cup and the adsorbed surface, thus adversely affecting the adsorption effect of the suction cup. In addition, in this embodiment, the first sealing plug 6 and the annular protrusion 8 are integrally formed structures.

[0037] Furthermore, the inner top wall of the disc cover 3 is fitted with a second sealing gasket 9. When the chassis pull rod 2 is pulled up by external force, the annular protrusion 8 and the second sealing gasket 9 of the disc cover 3 are sealed and pressed together, which can also achieve a sealing effect when the annular protrusion 8 and the second sealing gasket 9 are pressed together.

[0038] Furthermore, the one-way valve includes a first sealing gasket 10 housed at the bottom of the cavity 5, and a compression spring 11 sandwiched between the first sealing gasket 10 and the reinforcing sealing mechanism. In this embodiment, the compression spring 11 is sandwiched between the first sealing gasket 10 and the first sealing plug 6.

[0039] Furthermore, if the exhaust channel 4 of the suction cup base 1 does not extend into the cavity 5, due to the gap between the suction cup base 1 and the base rod 2, air may seep into the exhaust channel 4 of the suction cup base 1 along the gap between the suction cup base 1 and the base rod 2, and then enter between the suction cup and the surface to be adsorbed, resulting in the suction cup not adsorbing firmly. In this embodiment, the exhaust channel 4 of the suction cup base 1 is extended into the cavity 5, and the first sealing gasket 10 abuts against the top surface of the exhaust channel 4 of the suction cup base 1, which helps to prevent air from seeping into the exhaust channel 4 of the suction cup base 1 along the gap between the suction cup base 1 and the base rod 2.

[0040] Example 2

[0041] The difference between Example 2 and Example 1 is as follows:

[0042] like Figure 5-8 As shown, in this embodiment, the reinforcing sealing mechanism includes a cover 14 fixedly covering the top of the chassis pull rod 2, and a movable column 15 housed in the cavity 5 and abutting against the top of the compression spring 11. The cover 14 has a clearance through hole 16, and the movable column 15 passes through the clearance through hole 16. When the chassis pull rod 2 is pulled up by external force, the movable column 15 presses against the inner top wall of the disc cover 3 to compress the compression spring 11, so that the compression spring 11 further presses the first sealing gasket 10, thereby achieving a reinforcing sealing effect. In this embodiment, there is a gap between the cover 14 and the movable column 15 so that when the suction cup is pressed forcefully, the air at the bottom of the suction cup is discharged outward through the exhaust channel 4 and the gap between the cover 14 and the movable column 15; more preferably, the movable column 15 has a second vent hole 17 communicating with the exhaust channel 4.

[0043] Example 3

[0044] The difference between Example 3 and Example 1 is as follows:

[0045] like Figure 9-13 As shown, in this embodiment, the end of the exhaust channel 4 is located on the outer side wall of the chassis tie rod 2, the one-way valve is disposed on the outer side wall of the chassis tie rod 2, and the reinforcing sealing mechanism is disposed at the end of the exhaust channel 4 and fixed to the one-way valve.

[0046] Furthermore, the one-way valve includes a flexible valve core tube 12 that is sleeved on the outer wall of the chassis tie rod 2 and covers the end of the exhaust passage 4. In this embodiment, the flexible valve core tube 12 is a flexible rubber tube that can be elastically sleeved on the outer wall of the chassis tie rod 2 and play a one-way sealing role.

[0047] Furthermore, the reinforced sealing mechanism includes a protrusion 13 fixed to the outer wall of the elastic valve core tube 12 and covering the end of the exhaust channel 4. When the chassis tie rod 2 is pulled up by external force, the protrusion 13 seals against the inner wall of the disc cover 3, so that the protrusion 13 presses against the elastic valve core tube 12, thereby preventing air from entering the exhaust channel 4 along the outer wall of the elastic valve core tube 12 and the chassis tie rod 2. In this embodiment, the protrusion 13 and the elastic valve core tube 12 are integrally formed. Preferably, the inner surface of the disc cover 3 that presses against the protrusion 13 gradually slopes towards the center from bottom to top.

[0048] Furthermore, if the exhaust channel 4 of the suction cup base 1 does not extend to the outer wall of the base rod 2, due to the gap between the suction cup base 1 and the base rod 2, air may seep into the exhaust channel 4 of the suction cup base 1 along the gap between the suction cup base 1 and the base rod 2, and then enter between the suction cup and the surface to be adsorbed, resulting in the suction cup not adsorbing firmly. In this embodiment, the exhaust channel 4 of the suction cup base 1 is extended to the outer wall of the base rod 2, and the elastic valve core tube 12 abuts against the side end face of the exhaust channel 4 of the suction cup base 1, which helps to prevent air from seeping into the exhaust channel 4 of the suction cup base 1 along the gap between the suction cup base 1 and the base rod 2.

[0049] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. A self-venting suction cup base, comprising a suction cup base, a base pull rod fixedly connected to the top of the suction cup base, and a cover covering the top of the suction cup base and the top of the base pull rod, characterized in that: An exhaust channel extends from the bottom surface of the suction cup base to the outer wall of the base pull rod. The self-exhausting suction cup base also includes a one-way valve located in the middle or at the end of the exhaust channel, and a reinforcing and sealing mechanism located at the end of the exhaust channel. The reinforcing and sealing mechanism is used to cooperate with the cup cover to reinforce and seal the exhaust channel.

2. The self-venting suction cup base according to claim 1, characterized in that: When the end of the exhaust channel is located at the top of the chassis tie rod, the middle part of the chassis tie rod has a cavity for accommodating a one-way valve, and the reinforcing sealing mechanism is located at the top of the chassis tie rod.

3. The self-venting suction cup base according to claim 2, characterized in that: The reinforced sealing mechanism includes a first sealing plug fixedly installed on the top of the chassis tie rod. The first sealing plug has a first vent hole that connects to the exhaust channel. The first sealing plug is surrounded by an annular protrusion on the top of the first vent hole. When the chassis tie rod is pulled up by an external force, the annular protrusion seals and presses against the inner top wall of the cover.

4. The self-venting suction cup base according to claim 3, characterized in that: The inner top wall of the disc cover is fitted with a second sealing gasket. When the chassis pull rod is pulled up by external force, the annular protrusion seals and presses against the second sealing gasket of the disc cover.

5. A self-venting suction cup base according to claim 2, characterized in that: The one-way valve includes a first sealing gasket housed at the bottom of the cavity and a compression spring sandwiched between the first sealing gasket and the reinforcing sealing mechanism.

6. A self-venting suction cup base according to claim 5, characterized in that: The exhaust channel of the suction cup chassis extends into the cavity, and the first sealing gasket abuts against the top surface of the exhaust channel of the suction cup chassis.

7. A self-venting suction cup base according to claim 5, characterized in that: The reinforced sealing mechanism includes a cover fixedly installed on the top of the chassis tie rod, and a movable column housed in the cavity and abutting against the top of the compression spring. The cover has a clearance through hole, and the movable column passes through the clearance through hole. When the chassis tie rod is pulled up by an external force, the movable column presses against the inner top wall of the cover to compress the compression spring.

8. A self-venting suction cup base according to claim 1, characterized in that: When the end of the exhaust channel is located on the outer wall of the chassis tie rod, the one-way valve is located on the outer wall of the chassis tie rod, and the reinforcing sealing mechanism is located at the end of the exhaust channel and fixed to the one-way valve.

9. A self-venting suction cup base according to claim 8, characterized in that: The one-way valve includes an elastic valve core tube sleeved on the outer wall of the chassis tie rod and covering the end of the exhaust passage; the reinforced sealing mechanism includes a protrusion fixed to the outer wall of the elastic valve core tube and covering the end of the exhaust passage. When the chassis tie rod is pulled up by an external force, the protrusion seals and presses against the inner wall of the disc cover.

10. A self-venting suction cup base according to claim 9, characterized in that: The exhaust channel of the suction cup chassis extends to the outer wall of the chassis tie rod, and the elastic valve core tube abuts against the side end face of the exhaust channel of the suction cup chassis.

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