A suction cup device

Abstract

The application discloses a suction cup device, comprising: a suction cup body, the suction cup body having a suction surface in contact with a surface to be installed; a suction passage, the inlet of the suction passage being located on the suction surface; a suction assembly, being arranged in the suction passage; the suction surface is trumpet-shaped and arranged along the circumference of the suction passage, the suction surface can gradually contact the surface to be installed along the outer edge of the suction surface in the direction of the suction passage, so as to gradually exhaust the gas between the suction surface and the surface to be installed. When the suction cup device is installed on the surface to be installed, as the suction cup body is pressed or the suction assembly works, the trumpet-shaped suction surface gradually contacts the surface to be installed along the outer edge of the suction surface in the direction of the suction passage, so as to gradually exhaust the gas between the suction surface and the surface to be installed, and bubbles between the suction surface and the surface to be installed are avoided, the suction cup device is stable in suction, and has high load capacity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of daily necessities, in particular to a suction cup device. BACKGROUND

[0002] At present, a common suction cup on the market includes a suction cup body, the middle part of the suction cup body has a suction passage, a suction assembly is arranged in the suction passage, a soft rubber suction accessory is arranged on the suction cup body and located around the suction passage, the suction surface of the soft rubber suction accessory is flat, when a user presses the soft rubber suction accessory on a surface to be installed, most of the area of the suction surface directly contacts the surface to be installed, and the gas between a part of the suction surface and the surface to be installed cannot be immediately discharged, resulting in the existence of air bubbles between the part of the suction surface and the surface to be installed, even if subsequent suction of the gas from the suction passage cannot eliminate the air bubbles, so that the suction force of the suction cup is reduced, the load capacity of the suction cup is affected, and finally the suction cup is easily detached from the surface to be installed. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a suction cup device with stable suction and strong load capacity.

[0004] According to the suction cup device provided by the present application, the suction surface is gradually in contact with the surface to be installed in the direction from the outer edge of the suction surface to the suction passage, so that the gas between the suction surface and the surface to be installed is gradually discharged, and air bubbles between the suction surface and the surface to be installed are avoided, so that the suction cup device has stable suction and strong load capacity.

[0005] According to the suction cup device provided by the present application, at least the following beneficial effects are achieved:

[0006] When the suction cup device with the above structure is installed on the surface to be installed, as the suction cup body is pressed or the suction assembly performs suction work, the horn-shaped suction surface is gradually in contact with the surface to be installed in the direction from the outer edge of the suction surface to the suction passage, so that the gas between the suction surface and the surface to be installed is gradually discharged, and air bubbles between the suction surface and the surface to be installed are avoided, so that the suction cup device has stable suction and strong load capacity.

[0007] In some embodiments of the present application, the suction surface is a horn-shaped annular slope surface, and the depth of the annular slope surface gradually increases in the direction radially inward of the suction passage.

[0008] In some embodiments of the present application, the slope of the annular slope surface gradually increases in the direction radially inward of the suction passage.

[0009] In some embodiments of the present invention, the slope of the annular slope is equal in the radially inward direction along the air extraction channel.

[0010] In some embodiments of the present invention, the projection of the annular slope onto the horizontal plane is a circular ring, an elliptical ring, or a square shape.

[0011] In some embodiments of the present invention, the angle between the shortest line connecting the inner edge of the annular slope and the outer edge of the annular slope and the horizontal plane is θ, satisfying: 0.12°≤θ≤4.6°.

[0012] In some embodiments of the present invention, the radial dimension of the annular slope is a, and the height dimension of the annular slope is b, satisfying: 5mm≤a≤21mm, 0.02mm≤b≤1.5mm.

[0013] In some embodiments of the present invention, the inner edge of the adsorption surface is connected to an annular plane arranged circumferentially along the air extraction channel.

[0014] In some embodiments of the present invention, the radial dimension of the annular plane is c, which satisfies: 0.5mm≤c≤16.25mm.

[0015] In some embodiments of the present invention, the adsorption surface and / or the annular plane are adhesive.

[0016] In some embodiments of the present invention, the adsorption surface includes a plurality of fan-shaped curved surfaces, which are distributed circumferentially around the air extraction channel, and adjacent fan-shaped curved surfaces have an air guiding channel connected to the air extraction channel.

[0017] In some embodiments of the present invention, the suction cup body includes a housing and a frame disposed on the housing. The frame has a mounting groove with a flat bottom surface. An adsorption colloid is disposed in the mounting groove, and the adsorption surface is disposed on the lower end surface of the adsorption colloid.

[0018] In some embodiments of the present invention, the edge of the adsorbent colloid near the air extraction channel is chamfered.

[0019] In some embodiments of the present invention, the suction cup body is provided with an air extraction component that communicates with the air extraction channel.

[0020] In some embodiments of the present invention, the air extraction assembly includes a piston and an operating rod, the piston engaging with the inner wall of the air extraction channel, one end of the operating rod being connected to the piston, and the other end of the operating rod extending outside the air extraction channel.

[0021] In some embodiments of the present application, the operating rod extends to an end outside the air suction passage, and a pressing plate is arranged at the end, and a spring member is arranged through the operating rod, and two ends of the spring member abut against the pressing plate and the framework, respectively.

[0022] In some embodiments of the present application, the air suction assembly comprises a one-way valve matched with the air suction passage and an electric exhaust pump connected with the one-way valve.

[0023] Additional aspects and advantages of the present application will be given, in part, in the following description, become apparent from the following description, or be understood through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0025] Figure 1 Structure diagram of an embodiment of the suction cup device of the present application;

[0026] Figure 2 Structure diagram of an embodiment of the suction cup device of the present application;

[0027] Figure 3 Structure diagram of an embodiment of the suction cup device of the present application;

[0028] Figure 4 Structure diagram of an embodiment of the suction cup device of the present application; DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The same or similar components are denoted by the same reference numerals throughout the drawings, and a description thereof will not be repeated. The embodiments described below are exemplary and are for the purpose of explanation only, and should not be understood as limiting the present application.

[0030] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application.

[0031] In the description of the present application, the meaning of one or more is one or more, the meaning of multiple is more than two, greater than, less than, more than, etc. is understood as not including the number, above, below, within, etc. is understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0032] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] Referring to Figure 1 and Figure 2 , a suction cup device of an embodiment of the present application comprises: a suction cup body 100, the suction cup body 100 having an adsorption surface 210 in contact with a surface to be mounted; a suction passage 300 arranged in the suction cup body 100, the inlet of the suction passage 300 being located on the adsorption surface 210; a suction assembly 400 arranged in the suction passage 300; the adsorption surface 210 is trumpet-shaped and arranged along the circumference of the suction passage 300, and the adsorption surface 210 can gradually contact the surface to be mounted in the direction of the outer edge of the adsorption surface 210 to the suction passage 300, so as to gradually exhaust the gas between the adsorption surface 210 and the surface to be mounted.

[0034] When the suction cup device with the above structure is mounted on the surface to be mounted, the adsorption surface 210 can define an exhaust chamber in communication with the suction passage 300 between the adsorption surface 210 and the surface to be mounted. With the suction cup body 100 being pressed or the suction assembly 400 being operated, the gas in the exhaust chamber is exhausted outward from the suction passage 300, the adsorption surface 210 is deformed in the thickness direction thereof, the trumpet-shaped adsorption surface 210 gradually contacts the surface to be mounted in the direction of the outer edge of the adsorption surface 210 to the suction passage 300, that is, the part of the adsorption surface 210 away from the suction passage 300 contacts the surface to be mounted first, and the part of the adsorption surface 210 close to the suction passage 300 contacts the surface to be mounted later, so that the whole adsorption surface 210 can finally be attached to the surface to be mounted, thereby gradually exhausting the gas between the adsorption surface 210 and the surface to be mounted, and preventing bubbles from being generated between the adsorption surface 210 and the surface to be mounted. The suction cup device has stable adsorption and strong load capacity.

[0035] Referring to Figure 2 or Figure 3In some embodiments of the present application, the adsorption surface 210 is a trumpet-shaped annular slope, and the depth of the annular slope gradually increases in the radial direction of the air exhaust channel 300. It should be noted that the height distance between the annular slope and the surface to be installed is the depth of the annular slope, and the radial direction of the air exhaust channel 300 refers to the direction from the outer edge of the annular slope to the center of the air exhaust channel 300. When the above structure of the adsorption surface 210 is installed on the surface to be installed, the outer edge of the adsorption surface 210 first contacts the surface to be installed to form a sealing interface, and as the gas is exhausted, the interface moves in the radial direction of the air exhaust channel 300, until the adsorption surface 210 contacts the surface to be installed near the profile edge of the air exhaust channel 300, so that the entire adsorption surface 210 can be attached to the surface to be installed.

[0036] Referring to Figure 2 In some embodiments of the present application, the slope of the annular slope gradually increases in the radial direction of the air exhaust channel 300. That is, the annular slope is an arc surface with gradually increasing distance from the surface to be installed in the radial direction of the air exhaust channel 300. The annular slope with the above shape helps the adsorption surface 210 to deform slowly and orderly against the surface to be installed when subjected to the pressure difference, avoiding the instantaneous contact of most of the adsorption surface 210 with the surface to be installed to generate air bubbles. Since the material of the annular slope is plastic, the annular slope with the above shape can reduce the formation of pits due to the shrinkage of the plastic material during cooling after forming, avoid the formation of air bubbles, and ensure the adsorption capacity and load capacity of the suction cup device.

[0037] Referring to Figure 3 In some embodiments of the present application, the slope of the annular slope is equal in the radial direction of the air exhaust channel 300. That is, the annular slope is a slope with a constant angle between the annular slope and the horizontal plane. As the suction cup body 100 is pressed and the air exhaust assembly 400 performs air exhaust work, the annular slope can slowly and orderly abut against the surface to be installed, avoiding the instantaneous contact of most of the adsorption surface 210 with the surface to be installed to generate air bubbles, and ensuring the adsorption capacity and load capacity of the suction cup device. When the slope of the annular slope is constant, the annular slope is in the shape of a circular truncated cone or an elliptical truncated cone.

[0038] In some embodiments of the present application, the projection of the annular slope on the horizontal plane is in the shape of a circular ring, an elliptical ring, or a back-to-back shape. When the suction cup device is installed on the surface to be installed, the outer edge of the annular slope first contacts the surface to be installed, and as the gas is exhausted, finally, the inner edge of the annular slope contacts the surface to be installed, and the entire annular slope can be attached to the surface to be installed under the action of the pressure difference.

[0039] Referring to Figure 2 orFigure 3 In some embodiments of the present application, the shortest line between the inner edge of the annular slope and the outer edge of the annular slope and the horizontal plane forms an angle θ, which satisfies: 0.12°≤θ≤4.6°. Tests show that when the angle θ between the line connecting the inner edge of the annular slope and the outer edge of the annular slope and the horizontal plane satisfies the above data range, the suction cup device will not produce bubbles when it is attached to the surface to be installed, and the load capacity is improved compared with ordinary suction cup devices.

[0040] Referring to Figure 2 Or Figure 3 In some embodiments of the present application, the radial dimension of the annular slope is a, and the height dimension of the annular slope is b, which satisfies: 5mm≤a≤21mm, 0.02mm≤b≤1.5mm. Tests show that when the radial dimension a of the annular slope and the height dimension b of the annular slope satisfy the above data range, the stability of the suction cup device when attached to the surface to be installed is improved compared with ordinary suction cup devices.

[0041] Referring to Figure 2 Or Figure 3 In some embodiments of the present application, the outer edge of the suction surface 210 is connected to an annular plane 220 arranged along the circumference of the suction channel 300. It can be understood that when the suction cup device is installed on the surface to be installed, the annular plane 220 first contacts the surface to be installed. As the suction cup body 100 is pressed or the suction assembly 400 performs suction work, the gas is discharged outward from the suction channel 300, and the suction surface 210 contacts the surface to be installed from its outer edge to the direction of the suction channel 300, and finally the suction surface 210 and the annular plane 220 can be attached to the surface to be installed, thereby forming a good suction effect.

[0042] Referring to Figure 2 Or Figure 3 In some embodiments of the present application, the radial dimension of the annular plane 220 is c, which satisfies: 0.5mm≤c≤16.25mm. Tests show that when the radial dimension c of the annular plane 220 satisfies the above data range, the suction between the suction cup device and the surface to be installed is stable, and the suction cup device is not easily detached by lateral sliding external force.

[0043] The following gives a comparative test of installing the suction cup device on the ceramic tile surface and the glass surface. The test compares 100 suction cup devices with flat suction surface 210 and 100 suction cup devices with horn-shaped suction surface 210 under different loads for 3 months, and obtains different drop rates. The related dimensions a, b, c, θ of the horn-shaped suction surface 210 all satisfy the above data range.

[0044]

[0045]

[0046] From the data of the above comparative test, the suction cup device with the horn-shaped adsorption surface 210 does not have the phenomenon of falling within 3 months, while the suction cup device with the flat adsorption surface 210 has different falling rates, and the lifting effect is obvious. Therefore, compared with the adsorption capacity of the ordinary suction cup device, the suction cup device of the present application has more stable adsorption capacity and stronger load capacity after the structure of the adsorption surface 210 is improved.

[0047] In order to obtain more stable adsorption effect, the adsorption surface 210 and / or the annular plane 220 have viscosity. In some embodiments of the present application, the annular plane 220 and the adsorption surface 210 are both covered with glue, so as to realize stable adsorption to the surface to be installed.

[0048] Referring to Figure 4 In some embodiments of the present application, the adsorption surface 210 includes a plurality of fan-shaped curved surfaces 211 connected to the inner edge of the annular plane 220, the fan-shaped curved surfaces 211 are distributed at intervals around the circumference of the air suction channel 300, and the adjacent fan-shaped curved surfaces 211 have a gas guide channel 212 connected to the air suction channel 300. It should be noted that all the fan-shaped curved surfaces 211 are located on the same horn-shaped curved surface, and when the suction cup device is adsorbed on the surface to be installed, as the gas is discharged outward from the air suction channel 300, the fan-shaped curved surfaces 211 gradually contact the surface to be installed from the outer edge to the inner edge, at this time, the gas between the fan-shaped curved surfaces 211 and the surface to be installed can be transmitted to the air suction channel 300 along the gas guide channel 212, which helps to quickly discharge the gas.

[0049] In some embodiments of the present application, the suction cup body 100 includes a shell 110 and a skeleton 120 arranged on the shell 110, the skeleton 120 has a mounting sink with a flat bottom surface, the adsorption glue body 200 is arranged in the mounting sink, and the adsorption surface 210 is arranged on the lower end surface of the adsorption glue body 200. When the adsorption glue body 200 used is a material with higher softness, it is difficult to shape the adsorption surface 210, so in the production process, the adsorption glue body 200 with higher softness is first arranged in the skeleton 120, so that the adsorption surface 210 approaches the preset shape and does not deform excessively, thereby making the adsorption surface 210 of the adsorption glue body 200 better adhere to the surface to be installed. At the same time, the arrangement of the mounting sink can make the adsorption glue body 200 better combine with the skeleton 120, the force of the suction cup device is uniformly transmitted to the adsorption glue body 200 by the skeleton 120 with higher rigidity, and then transmitted to the adsorption surface 210, which can make the suction cup body 100 bear more uniformly and adsorb more stably.

[0050] Referring to Figure 2 or Figure 3In some embodiments of the present application, the adsorption colloid 200 is chamfered near the edge of the air exhaust channel 300. Due to the presence of the shell 110, when the above-mentioned suction cup device is manufactured, the side of the adsorption colloid 200 close to the shell 110 is prone to be cooled and shaped first, and the edge of the adsorption colloid 200 close to the air exhaust channel is also prone to be cooled and shaped first, while the rest of the adsorption colloid 200 is cooled later. In this process, the part of the adsorption colloid 200 close to the edge of the air exhaust channel 300 has a tendency to flow towards the part that has been cooled, resulting in the thickness of the part of the adsorption colloid 200 close to the edge of the air exhaust channel 300 being thicker than the preset thickness, thereby affecting the exhaust function. Therefore, the edge of the air exhaust channel 300 is chamfered, so that the adsorption colloid 200 is chamfered near the edge of the air exhaust channel 300, thereby ensuring the exhaust function of the air exhaust channel 300, and further ensuring the adsorption effect of the suction cup device.

[0051] Referring to Figure 1 and Figure 2 In some embodiments of the present application, the end of the operating rod 420 extending out of the air exhaust channel 300 is provided with a pressing plate 421, and the operating rod 420 is provided with a spring member 500, and the two ends of the spring member 500 abut against the pressing plate 421 and the framework 120, respectively. It should be noted that, when a user uses the suction cup device, the user first places the suction cup body 100 flat on the surface to be installed, and then separately pushes the pressing plate 421, and the spring member 500 uniformly transmits the pushing force to the framework 120, so that the adsorption surface 210 is uniformly stressed, and the adsorption surface 210 is gradually brought into contact with the surface to be installed along the outer edge of the adsorption surface 210 in the direction of the air exhaust channel 300, so as to gradually exhaust the gas between the adsorption surface 210 and the surface to be installed.

[0052] Referring to Figure 1 In some embodiments of the present application, the suction cup body 100 is provided with an air exhaust assembly 400 communicating with the air exhaust channel 300. The air exhaust assembly 400 exhausts the gas between the adsorption surface 210 and the surface to be installed from the air exhaust channel 300. Compared with the way of manually pressing the suction cup body, the air exhaust assembly 400 helps the adsorption surface 210 to gradually come into contact with the surface to be installed in the direction of the radial direction of the air exhaust channel 300, so as to gradually exhaust the gas between the adsorption surface 210 and the surface to be installed, and prevent bubbles from being generated between the adsorption surface 210 and the surface to be installed.

[0053] Referring to Figure 1 In some embodiments of the present application, the air exhaust assembly 400 includes a piston member 410 and an operating rod 420, the piston member 410 cooperates with the inner wall of the air exhaust channel 300, one end of the operating rod 420 is connected with the piston member 410, and the other end of the operating rod 420 extends out of the air exhaust channel 300. A user can manually operate the above-mentioned air exhaust assembly 400 to exhaust the gas.

[0054] In some embodiments of the present application, the air extraction assembly 400 includes a one-way valve cooperating with the air extraction channel 300 and an electric exhaust pump connected to the one-way valve. The one-way valve is used to allow the gas to be extracted unidirectionally and prevent external gas from entering the chuck apparatus. The electric exhaust pump is used to extract the gas in the exhaust chamber from the air extraction channel 300.

[0055] The technical features of the above embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not result in contradictions, they shall be considered within the scope of the present disclosure.

[0056] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, and it is intended that the scope of the application be limited only by the scope of the claims and equivalents thereof.

Claims

1. A suction cup device, characterized in that The application relates to a suction cup device, comprising: a suction cup body (100) having a suction surface (210) in contact with a surface to be installed; a suction channel (300) having an inlet on the suction surface (210); the suction surface (210) is trumpet-shaped and arranged along the circumference of the suction channel (300), and the suction surface (210) can gradually contact the surface to be installed along the outer edge thereof in the direction of the suction channel (300) to gradually discharge the gas between the suction surface (210) and the surface to be installed; the suction surface (210) is a trumpet-shaped annular slope, and the depth of the annular slope gradually increases along the direction of the suction channel (300) radially inward; the slope of the annular slope gradually increases along the direction of the suction channel (300) radially inward; the included angle between the shortest line between the inner edge of the annular slope and the outer edge of the annular slope and the horizontal plane is theta, and 0.12 DEG <= theta <= 4.6 DEG; the radial dimension of the annular slope is a, the height dimension of the annular slope is b, 5 mm <= a <= 21 mm, and 0.02 mm <= b <= 1.5 mm; the suction surface (210) comprises a plurality of sector curved surfaces (211) which are distributed at intervals around the circumference of the suction channel (300), and the adjacent sector curved surfaces (211) have a gas guide channel (212) in communication with the suction channel (300); when the suction surface (210) is deformed by the air pressure difference, the suction surface (210) can slowly and orderly abut against the surface to be installed, so that the most area of the suction surface (210) does not directly contact the surface to be installed instantaneously to generate air bubbles.

2. The suction cup device according to claim 1, wherein: the projection of the annular slope on the horizontal plane is a circular ring, an elliptical ring or a back-shaped ring.

3. The suction cup device according to claim 1, wherein: the outer edge of the suction surface (210) is connected with an annular plane (220) arranged along the circumference of the suction channel (300).

4. The suction cup device according to claim 3, wherein: the radial dimension of the annular plane (220) is c, and 0.5 mm <= c <= 16.25 mm.

5. The suction cup device according to claim 3, wherein: the suction surface (210) and / or the annular plane (220) has viscosity.

6. The suction cup device according to claim 1, wherein: the suction cup body (100) comprises a shell (110) and a framework (120) arranged on the shell (110), the framework (120) has a mounting groove with a flat bottom surface, the mounting groove is provided with a suction gel (200), and the suction surface (210) is arranged on the lower end surface of the suction gel (200).

7. The suction cup device according to claim 6, wherein: the edge of the suction gel (200) close to the suction channel (300) is chamfered. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 8. The suction cup device of claim 6, wherein: the suction cup body (100) is provided with a suction assembly (400) in communication with the suction passage (300).

9. The suction cup device of claim 8, wherein: the suction assembly (400) comprises a piston member (410) and an operating rod (420), the piston member (410) is in cooperation with the inner wall of the suction passage (300), one end of the operating rod (420) is connected with the piston member (410), and the other end of the operating rod (420) extends out of the suction passage (300).

10. The suction cup device of claim 9, wherein: the end of the operating rod (420) extending out of the suction passage (300) is provided with a pressing plate (421), the operating rod (420) is provided with a spring member (500), and the two ends of the spring member (500) are respectively abutted against the pressing plate (421) and the skeleton (120).

11. The suction cup device of claim 8, wherein: the suction assembly (400) comprises a one-way valve in cooperation with the suction passage (300) and an electric exhaust pump connected with the one-way valve.

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