KR20150062787A - Self sealing suction cup assembly - Google Patents

Abstract

The present invention relates to a suction cup assembly, and more specifically, to a suction cup assembly having a self sealing mechanism. The suction cup assembly according to the present invention comprises a suction cup main body formed from a flexible material and provided with a suction surface, a pulling bar, a suction cup support member, and a suction lever. One end of the pulling bar is fixed on a middle portion of the opposite surface of the suction surface of the suction cup main body. The suction cup support member has a concave accommodation space to accommodate a deformed portion of the suction cup main body. The suction lever pulls or pushes the pulling bar by rotating between a suction position to deform the suction cup main body into the accommodation space and a suction release position to recover from a deformation. Additionally, the suction cup assembly according to the present invention further comprises a self sealing means. The self sealing means comprises a first elastic member to press the rim of a vacuum space formed in the suction cup main body from the opposite surface of the suction surface by an elastic restoring force when the suction lever is positioned at the suction position. The first elastic member presses the rim of the vacuum space formed in the suction cup main body from the opposite surface of the suction surface by an elastic restoring force when the suction lever is positioned at the suction position. Accordingly, since the rim of the vacuum space is continuously pressed after suction is completed, the suction cup assembly prevents the vacuum space from expanding to weaken the seal.

Description

[0001] SELF SEALING SUCTION CUP ASSEMBLY [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a suction assembly (SUCTION CUP ASSEMBLY), and more particularly, to a suction assembly having a self-sealing mechanism.

BACKGROUND ART [0002] Sucking for attaching or mounting an article to a surface of a glass or a smooth wall surface is widely known. A sucker for use on a smooth surface is formed of an elastic material such as rubber, and has a disk-shaped concave surface with a suction surface. The suction surface of the sucker is pressed against a smooth surface to be adhered to make a vacuum state between the sucking surface of the sucker and the smooth surface so that the vacuum state is maintained by the elastic force of the sucker so that the sucker is adsorbed on the surface. Such a sucker has a problem in that irregularities are formed on the surface like a dashboard of an automobile, or adsorption is difficult on a surface which is a curved surface.

BACKGROUND ART Recently, a device for mounting a navigation device or a mobile phone on a dashboard of an automobile has been used, and a sucker capable of being sucked on a surface or an uneven surface has been developed. Fig. 5 shows an adsorption apparatus disclosed in Korean Patent No. 10-852164. 5 includes a flexible pad 21, a center member 23 fixed to the pad 21, a housing 22, A gel layer 25 is attached to the lower adsorption face of the pad 21 and an annular leaf spring 27 for pressing the outer periphery of the upper surface of the pad 21 is provided around the outer periphery of the housing 22. The suction device 20 shown in Fig. 5 causes the center member 23 to be raised by rotating the lever 24a so that a vacuum is formed at the center of the pad so that an attraction force is generated, and at the same time, the adhesive force of the gel layer 25 So that the vacuum is maintained on the uneven surface to maintain the attraction force. Also, since the annular leaf spring 27 presses the outer circumferential surface of the pad 21, airtightness can be maintained to some extent.

Korean Patent Registration No. 10-852164, entitled " Adsorption Apparatus "

There is a problem in that when the temperature change is severe in both of the conventional sucker for temporarily attaching to a smooth surface and the sucker for temporarily attaching an article to a surface having irregularities such as a dashboard of an automobile, Particularly, when an article is mounted or hanged on the inside of a car or on the wall surface of a shower room due to a temperature change, the suction force of the suction valve weakens, causing the article to fall off and damage the article or injure a person . This is because when the air remaining in the vacuum of the sucker is expanded due to the rise of the ambient temperature, the vacuum can not maintain the seal against the vacuum, or when the air remaining in the vacuum of the sucker shrinks due to the lowering of the ambient temperature, Because it can not keep up. In particular, the annular leaf spring used in the conventional adsorption mechanism shown in Fig. 5 is designed to press the outer circumferential surface of the pad, so that when the air in the vacuum space expands when the temperature rises, Is broken, so that there is a problem that the adsorption force is remarkably lowered even with a slight temperature rise. In addition, there is a problem that the restoring force by the elastic energy stored by the external force applied by the user for adsorption acts in the direction of enlarging the vacuum space formed by the sucker, thereby damaging the sealing around the vacuum space.

Many kinds of sucking or sucking devices have been developed, but there is still a demand for a sucking assembly capable of easily attaching and mounting articles without damaging the wall by providing a strong suction force and maintaining the suction force constantly.

It is an object of the present invention to provide a sucking assembly of a new structure capable of maintaining a vacuum state of sucking even in a place where temperature changes are severe. In particular, the present invention aims to provide a new sucking assembly that provides a self-sealing function upon temperature changes.

A sucking assembly according to the present invention includes a sucking body of a flexible material having a suction surface, a pulling rod, a suction cup supporting member, and a suction lever. One end of the pulling bar is fixed to the center of the opposite surface of the suction surface of the sucking main body. The sucking support member includes a concave accommodation space for accommodating the deformed portion of the sucking main body when the pulling bar is pulled by the rotation of the sucking lever and a concave accommodation space for accommodating the deformed portion of the sucking main body, And has a peripheral pressurizing surface. Further, the pulling rod is provided so that the free end thereof protrudes to the outside through the accommodation space of the suction support member. The suction lever is pivotally connected to the suction cup by being pivotally connected to the suction cup, and is configured to pull or push the suction cup by pivoting so that the suction cup is deformed into the receiving space, And the release position.

Further, the sucker assembly according to the present invention includes a self-sealing means. The self sealing means may be arranged such that when the suction lever is located at the suction releasing position, the opposite side of the adsorption face of the suction body and the peripheral pressure face of the suction support member are spaced apart from each other by a predetermined distance, and when the suction lever is located at the suction position, And a first elastic member configured to press the peripheral edge of the vacuum space formed in the sucking body at the opposite side of adsorption by the first elastic member. In some embodiments, the first elastic member may be a compression coil spring, a donut-shaped rubber spring, or a ring-shaped leaf spring. The compression coil spring may be installed such that one end thereof is in contact with the inner circumferential surface of the accommodation space of the sucker support member and the other end thereof is in contact with the opposite surface of the sucker main body. When attaching the sucking assembly to the surface to be adsorbed, the first elastic member is compressed by the external force of the user rotating the sucking lever for adsorption, and stores the elastic energy. Further, when the suction lever is located at the suction position, the first elastic member presses the peripheral edge of the vacuum space formed on the suction body by the elastic restoring force on the opposite side of the suction. Therefore, since the suction of the vacuum is continued, the vacuum space is enlarged to prevent the vacuum in the vacuum space from weakening. Further, even when the temperature of the first elastic member is increased and the vacuum space is expanded, a larger elastic restoring force is applied in accordance with the expansion of the vacuum space, so that the sealing is maintained.

And may further include a self-sealing means, and a second elastic member configured to press the suction lever in a direction away from the suction support member. The second elastic member may be a compression coil spring, a donut-shaped rubber spring, or a ring-shaped leaf spring. The second elastic member is disposed so that one end thereof is in contact with the inner circumferential surface of the accommodating space of the sucking support member and the other end is in contact with the sucking body to press the sugar- When the suction lever is in the release position, the second elastic member allows the suction surface of the suction main body to move away from the accommodation space so as to form the vacuum space as much as possible.

In some embodiments, a gel layer may be adhered to the adsorption surface of the sucking body in order to make adsorption possible on the surface with irregularities on the surface or to secure the sealing of the vacuum space formed by the sucking body. The gel layer may be an industrial gel pad having adhesiveness or adhesiveness.

In some embodiments, the suction surface of the suction main body may be formed as a flat surface or a concave curved surface. Further, in some embodiments, a circular protruding portion may be formed at the center of the suction surface of the sucking main body, and a center portion of the gel pad may be removed from the suction surface of the sucking main body and inserted into the ridge portion.

The sucker assembly according to the present invention has self-sealing means for sealing a vacuum formed by the sucker body when sucked. Therefore, the sealing of the vacuum space is prevented from being weakened, and the attraction force of the sucking assembly is prevented from being lowered. Especially, the effect of maintaining the sealing is excellent, so that the sucking assembly can be used for a long time in an environment with a large temperature change, for example, in a car or in a shower, without deteriorating the adsorption force.

1 is a perspective view of one embodiment of a self-
Fig. 2 is an exploded perspective view of the embodiment shown in Fig.
3 (a) and 3 (b) illustrate a self-sealing function of the sucking assembly according to the present invention. Fig. 3 (a) Fig. 3C is a view showing a state in which a vacuum is formed in a space between the adsorption surface of the suction main body and the surface to be adsorbed in a state where the adsorption is completed and the external force is removed
Fig. 4 is a perspective view showing a state in which the present invention is applied to a cradle for mounting a mobile phone of a sucking assembly
Figure 5 is a schematic view of one embodiment of a sucking assembly in accordance with the prior art;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of one embodiment of a self-sealing sucker assembly according to the present invention, and FIG. 2 is an exploded perspective view of the embodiment shown in FIG. The sucking assembly 100 of the present embodiment includes a sucking main body 110 and a sucking support member 120 provided on an upper portion of the sucking main body 110. The sucking main body 110 has a suction surface, and is a disk-shaped synthetic resin made of a flexible material. An adhesive or sticky gel pad 115 is attached to the lower adsorption surface of the sucking main body 110. Although the sucking assembly 100 of this embodiment is provided with the gel pad 115 in order to make it possible to adsorb the adsorbed surface formed with the irregularities and to secure the sealing of the vacuum space formed by the sucking main body 110, The gel pad 115 may be omitted if it is attached to the mosquito absorbing surface.

A sugar ring 130 is fixed to an upper center portion of the sucking main body 110. In the present embodiment, one end of the sugar ring 130 is integrally fixed to the center of the sucking main body 110 by insert injection, but it may be bonded by using an adhesive, a screw, or the like. A through hole 133 is formed in the free end 132 of the pin 130 so as to be connected to the suction lever 140.

The suction lever 140 is formed with a through hole 141 to be connected to the sugar bar 130 by a pin 170. The suction lever 140 has a cam 141 protruded to serve as a support for lifting up the sugar ring 130 by contacting the suction support member 120 when the suction lever 140 is rotated.

The sucker supporting part 120 includes a pair of frames 121 for restricting the movement of the sucking lever 140 to be mounted and a pair of connecting parts 123 for fixing the article to be mounted. A through hole 122 for inserting a pin 170 for connecting the sugar ring 130 and the suction lever 140 is formed in the frame 121. The sucking support member 120 is generally hemispherical and has a recessed receiving space formed therein and has a circumferential pressing surface 127 for defining the receiving space and for pressing the edge of the sucking main body 110. When the sugar ring 130 is pulled by the rotation of the suction lever 140, the central portion of the suction body 110 connected to the sugar ring 130 is swollen to form a vacuum between the suction face and the suction face, The deformed portion is received in the receiving space. A through hole for inserting the free end of the sugar ring 130 is formed between the pair of frames 122 of the sucker support member 120. The sucker support member 120 is preferably formed by injection molding of synthetic resin, but is not limited thereto.

The sucking support member 120 is mounted on the upper portion of the sucking main body 110 such that the free end portion 132 of the sucking rod 130 protrudes between the pair of frames 122 through the accommodation space of the sucking support member 120 do. The suction lever 140 is rotatably connected to the sugar bar 130 by the pin 170 and guided by the frame 121 of the suction support member 120 so as to be vertically rotatable. A state in which the adsorption lever 140 is lifted upwards and the sugarbomb 130 is pushed down is referred to as an adsorption release position and a state in which the adsorption lever is pushed downward and the sugarbomb 130 is lifted upward is referred to as an adsorption position.

A first compression coil spring 150 and a second compression coil spring 160 are mounted between the upper surface of the sucker main body 110 and the accommodating space of the sucker support member 120. The first compression coil spring is disposed so that one end thereof is in contact with the inner circumferential surface 126 of the accommodating space of the sucking support member 120 and the other end thereof is in contact with the opposite surface of the sucking main body 110. The second elastic member 160 is disposed so that one end thereof contacts the inner circumferential surface 126 of the accommodating space of the sucking support member 120 and the other end thereof contacts the sucking main body 110 to press the sugar bar 130. The first compression coil spring 150 acts as a self-sealing means when adsorbing the sucking assembly 100 of the present embodiment configured as described above on the adsorbing surface.

Hereinafter, the operation and effect of the sucking assembly 100 of the present embodiment will be described with reference to Fig.

Fig. 3 (a) shows a state in which adsorption is started. Before the user applies the force F to the suction lever 140, the suction surface of the suction main body 110 (the lower surface 116 of the gel pad when the gel pad is attached as in the present embodiment) The sucking main body 110 and the sucker support member 120 are kept apart from each other by the first compression coil spring 150 at a predetermined interval X in a state in which the sucking main body 110 and the sucker support member 120 are in contact with each other. The interval X between the sucking main body 110 and the sucker support member 120 when the sucking is in the released state is set so that the length of the sucking rod 130 and the lengths of the first and second compression coil springs Design can be done at desired intervals.

When the user applies a force F to the suction lever 140, the suction lever 140 rotates in the clockwise direction about the pin 170, and the cam portion 141 of the suction lever 140 is rotated by the suction support member And the pin reaction force P2 is generated at the pin 170. As a result, The first spring 150 is urged by the force S1a and the second spring 160 is urged by the force S2a against the accommodating space inner circumferential surface 126 of the sucker main body 110 and the sucker supporting member 120, do. At this time, a reaction force R is generated on the surface to be adsorbed 199 corresponding to the resultant force (S1a + S2a) of the force that the first spring 150 and the second spring 160 press the sucking main body 100, The vertical direction component Rx of the vertical force component R is equal in magnitude to the vertical direction component Fx of the force F applied by the user and is opposite in direction. The horizontal direction component Fx of the force F applied by the user is equal in magnitude and opposite in direction to the horizontal direction component Rx of the reaction force generated on the surface 201 to be adsorbed. Therefore, the sucking assembly 100 is in a state of being stationary on the sucking surface 199.

When the user continues to increase the force to continue to rotate the suction lever 140 in the clockwise direction around the pin 170, the suction support member 120 is pushed by the sliding pressure P1 that presses the upper surface 125 And moves toward the adsorption surface 199. The first spring 150 and the second spring 160 are compressed by the external force provided by the user so that the elastic energy is stored respectively in the first spring 150 and the second spring 160 when the suction support member 120 moves toward the suction surface 199. [

3B shows a state in which the sucking support member 120 moves toward the adsorbed surface 199 by a predetermined distance X and the peripheral pressurizing surface 127 of the sucking support member 120 moves toward the sucking surface 110 of the sucking main body 110 And is in contact with the upper surface edge. In this state, when the user continues to apply force to the adsorption lever 140 to rotate the adsorption lever 140, the first spring 150 is not further contracted, and, according to the rotation of the adsorption lever 140, (130) rises upwardly away from the surface to be adsorbed (199). At the same time, the central portion of the flexible sucker main body 110 fixed to the sugar bar 130 also deforms and rises upwardly away from the surface to be absorbed. A part of the vertical component Fx of the external force F additionally applied by the user is stored as elastic energy in the second spring 160 contracted as the sugar bar 130 is lifted. A part of the vertical component Fx of the external force F further exerted by the user from the moment the central portion of the sucking main body 110 is lifted is transmitted through the peripheral pressurizing surface 127 of the sucking support member 120, (Not shown). At this time, the first spring 150 maintains a state of constant pressure around the upper surface of the sucking main body 110 by the elastic restoring force formed by the contraction. That is, from the instant when a vacuum is formed between the suction surface of the suction main body 110 and the suction surface 199, the first spring 150 automatically exerts a force to maintain the airtightness of the vacuum space with an elastic restoring force. In particular, when the gel pad 115 is attached as in the present embodiment, the coil of the first compression coil spring 150 locally presses the gel pad 115 to more effectively maintain the airtightness.

Fig. 3 (c) shows a state in which a vacuum is formed in a space between the adsorption surface and the adsorption surface of the sucking main body in a state where the sucking is completed and the external force is removed. The sucking assembly 100 is moved in the vacuum space V formed between the sucking surface 116 and the sucking surface 199 of the sucking main body 110 in a state where the sucking lever 140 reaches the sucking position and the external force is removed, As shown in Fig. The attraction force is obtained by multiplying the difference between the vacuum pressure Pb of the vacuum space V and the atmospheric pressure Pa by the area of the sucking main body forming the vacuum space. 3 (c), when the suction lever 140 reaches the suction position and removes the external force applied by the user, the peripheral pressure of the suction support member 120, which has pressed the edge of the suction main body 110, The pressure P2 on which the surface 127 is applied disappears. However, even when the external force is removed, the first spring 150 keeps the state of pressing the periphery of the vacuum space V by the restoring force to maintain the sealing. Further, when the ambient temperature rises and the vacuum space (V) expands, the first spring (150) suppresses expansion to prevent airtight breakage. Particularly, when the vacuum space V expands, the first spring 150 contracts, and a larger restoring force is applied, thereby maintaining the sealing automatically.

On the other hand, the second spring 160 pressurizes the sugar ring 130 toward the adsorbed surface 199 by the restoring force, and the cam portion 141 of the adsorption lever 140 is pressed against the upper surface of the suction support member 120 125 to maintain the locked state, so that it is not possible to apply force to shrink the vacuum space (V). However, when the vacuum space (V) expands due to the temperature rise, the expansion is allowed, thereby preventing the pressure of the vacuum space (V) from rising and preventing the attraction force from being lowered. 3 (a), when the suction lever 140 is in the release position, the second spring 160 moves the suction surface 116 of the suction main body 110 away from the accommodation space So that the vacuum space (V) can be maximized when adsorbed.

In this embodiment, the first spring 150 and the second spring 160 are compression coil springs. However, the present invention is not limited to this, but a donut-shaped rubber spring, a ring-shaped leaf spring, or the like can be used. The sucker assembly 100 of the present embodiment includes a circular protuberance 112 formed at the center of the sucker main body 110 and a gel pad 115 whose central portion is removed from the lower surface of the sucker main body 110, 112, but the present invention is not limited thereto, and various types of gel pads can be attached. In some embodiments, the bottom surface of the sucking body 110 may be a flat surface or a concave surface, and the gel pad 115 may be attached to the entire bottom surface.

4 is a perspective view showing a state where the present invention is applied to a cradle for mounting a mobile phone of a sucking assembly according to the present invention. 4 is that the link assembly 200 is connected to the connection part 123 of the suction support member 120 and the mobile phone mounting mechanism 300 is installed at the free end of the link assembly 200. [

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

110 Sucker body
120 Suction support member
130 Pull Rod
140 Suction lever
150 first compression coil spring
160 second compression coil spring

Claims (7)

A sucking main body of a flexible material having an adsorption surface;
A pulling rod whose one end is fixed to the center of the opposite surface of the suction surface of the sucking main body,
A suction support member provided with a recessed receiving space for receiving a deformed portion of the sucking main body when the pulling bar is pulled, the free end of the pulling bar passing through the receiving space and projecting to the outside,
A suction position for restricting deformation of the sucking main body into a receiving space and a suction releasing position for restoring the deformation of the sucking main body, An adsorption lever configured to be rotatable between the first and second adsorption columns,
And the suction support member is spaced apart from the suction support opposite edge of the suction main body by a predetermined distance when the suction lever is located at the suction release position and the elastic support force is applied to the suction main body And self-sealing means including a first elastic member configured to press a peripheral edge of the formed vacuum space. The method according to claim 1,
Wherein the first elastic member is a compression coil spring and one end thereof is in contact with the inner circumferential surface of the accommodation space of the sucking support member and the other end is in contact with the opposite surface of the sucking main body. 3. The method of claim 2,
And a gel layer attached to an adsorption surface of the sucking body. 4. The method according to any one of claims 1 to 3,
The self-sealing means further comprises a second elastic member configured to press the suction lever in a direction away from the suction support member. 5. The method of claim 4,
Wherein the second elastic member is a compression coil spring and one end is in contact with the inner circumferential surface of the accommodating space of the sucking support member and the other end is in contact with the sucking main body so as to press the sugar bar. The method of claim 3,
Wherein a circular protruding portion is formed at the center of the adsorption face of the sucking main body and the adhesive gel layer adhered to the sucking face of the sucking main body is inserted into the protruding portion with the center portion removed. The method of claim 3,
Wherein the suction surface of the sucking body is flat.

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