DE102019101540B4 - suction cup - Google Patents

Abstract

Suction cup (1), with a suction cup element (10) which has a base body (11), a control element (12) which is movably arranged on the base body (11), a first channel (15) and a second channel (16), wherein the base body (11) has a base part (111) and an elastically deformable lower part (112), wherein the lower part (112) is arranged on the base part (111) and can lie on a base surface (2), the base body (11 ) forms a first air chamber (13), a second air chamber (14) being formed between the control element (12) and the base body (11), the first channel (15) being the first air chamber (13) and the second air chamber (14) ) connects, wherein the control element (12) forms the second channel (16); a first one-way valve (30) which is arranged in the first channel (15) to open or close the first channel (15) so that the Fluid can flow from the first air chamber (13) to the second air chamber (14); and a second one-way valve (40) disposed in the second channel (16) to open or close the second channel (16) to allow fluid to flow outward from the second air chamber (14); characterized in that: Control element (12) has an annular groove (17) and is provided with a sealing ring (20), wherein the sealing ring (20) is arranged in the annular groove (17) and is located between the annular groove (17) and the base part (111), wherein the sealing ring (20) has an outer annular surface (21) which forms at least one outer flange (22) which rests against the inner wall of the base part (111), a plurality of outer flanges (22) being provided, the sealing ring (20 ) has an inner annular surface (23) opposite the outer annular surface (21), the annular groove (17) forming a plurality of annular projections (171), the annular projections (171) pressing the inner annular surface (23) radially; the control member (12) further has an identification portion (123), wherein when the control member (12) is moved, the identification portion (123) is slidable in and out of the base body (11), the identification portion (123) having a color; wherein a cap (60) is provided which is arranged on the control element (12) and covers the second one-way valve (40), the cap (60) covering a part of the control element (12) and the identification section (123) outside the cap (60); wherein the control element (12) has a color; wherein the cap (60) has a plurality of first connection structures (61) and the control element (12) has a plurality of second connection structures (124) which are connected to the first connection structures (61) are connected, the first connection structures (61) and the second connection structures (124) being hooked; a plurality of outlet channels (70) being provided between the cap (60) and the control element (12) d, wherein the control element (12) forms a plurality of outlet channels (70), each outlet channel (70) connecting the second channel (16) to the ambient air, each outlet channel (70) having a first outlet section (71) and a second outlet section (72) which runs transversely to the first outlet section (71); wherein the base body (11) further comprises a cover (113), the cover (113) being arranged on the base part (111) and a plurality of first hook sections (114), wherein the base part (111) has a plurality of second hook portions (115) which are hooked with the first hook portions (114), the lid (113) being provided with a through hole (116), the control element (12) can pass through the through hole (116), the through hole (116) being coaxial with the control element (12) and defining a central axis (L1), the first hook portions (114) and the second hook portions (115) around the Mitt Elaxis (L1) are arranged around, wherein the first hook portion (114) or the second hook portion (115) has an inclined guide surface, wherein the inclined guide surface extends in the radial direction of the central axis (L1); wherein the base body (11) further has an inlet duct (90) which is connected to the first air chamber (13) and the ambient air, wherein the lower part (112) is further provided with a relief valve (91), the relief valve (91) having a through hole (92), communicating with the inlet channel (90), wherein the through hole (92) can open and close the inlet channel (90); wherein an elastic element (50) is arranged between the control element (12) and the base part (111); wherein the first one-way valve (30) and the second one-way valve (40) are formed identically, the second one-way valve (40) having an upper portion (41), a neck portion (42) and a lower portion (43), the Neck section (42) extends through the second channel (16), the upper section (41) sealing a first opening (161) of the second channel (16), the lower section (43) having a second opening (161) opposite the first Opening (162) of the second channel (16), the lower portion (43) being cruciform and having a plurality of transverse sealing lips (44); the suction cup (1) further comprising a hanging hook (19), the base body (11) or the hanging hook (19) is provided with a first latching structure (18) and the other is provided with a second latching structure (191), the first latching structure (18) having a latching hole (181) and a washer (182) with the latching hole (181) ), wherein the latching hole (181) is continuous, the second latching structure (191) has a latching groove (192) and has a shape that corresponds to the shape of the latching hole (181), the second latching structure (191) through the latching hole ch (181) can be guided, the disc (182) engaging in the locking groove (192).

Description

Technical area

The invention relates to a suction cup.

State of the art

A suction cup according to the preamble of claim 1 is the document JP 2002-295 441 A refer to.

From the patent TW I604134 B Further, a suction cup is known which has a suction cup member, a one-way valve attached to the suction cup member, a cap connected to the suction cup member, and a manual exhaust valve attached to the cap. The suction cup element has a base and an air chamber. The one-way valve is arranged in a valve hole of the base so that the air from the air chamber can be discharged to the outside of the base. The cap has an air storage space, which is connected to the air chamber, and an outlet channel, which connects the air storage space with the ambient air. The manual exhaust valve can open and close the exhaust port. A movable element of the manual exhaust valve has a sealing ring and an identification part. The sealing ring is displaceable or deformable relative to the movable element. By actuating the movable element, the sealing ring can be released or the outlet channel can be sealed. The identification part is located inside the suction cup element in the negative pressure state. When the negative pressure decreases, the identification part gradually comes out of the suction cup member, whereby the user can recognize the negative pressure state. The suction cup has a spring disposed between the movable element and the cap.

The prior art sealing ring must be malleable in order to vent the air. As a result, the prior art sealing ring cannot be too thick and too hard, but it still has to withstand the compressive force of the spring. For example, if the negative pressure is 0.533 bar (a common adhesive force), the pressure force of the spring moves the sealing ring, whereby the identification part of the manual exhaust valve can be exposed by the pressure force of the spring, even if the negative pressure remains at 0.533 bar, so that the user can misjudge the vacuum condition. Therefore, the identification part cannot reliably indicate the negative pressure state.

For this reason, the inventor aims to offer a suction cup that can solve the above-mentioned problems.

Object of the invention

The invention is based on the object of creating a suction cup which increases the adhesive force by means of a first and second one-way valve, the control element not being easily moved in the opposite direction of the lower part by an external force in the negative pressure state.

This object is achieved by the suction cup according to the invention with the features of claim 1, with a suction cup element which has a base body, a control element which is movably arranged on the base body, a first channel and a second channel, the base body having a base part and a has elastically deformable lower part, wherein the lower part is arranged on the base part and can lie on a base surface, the base body forming a first air chamber, wherein a second air chamber is formed between the control element and the base body, the first channel the first air chamber and the connect the second air chamber, the control element forming the second channel; a first one-way valve disposed in the first channel to open or close the first channel to allow fluid to flow from the first air chamber to the second air chamber; and a second one-way valve disposed in the second channel to open or close the second channel to allow fluid to flow outward from the second air chamber.

Figure list

• 1 a perspective view of a preferred embodiment of the invention,
• 2 an exploded view of the preferred embodiment of the invention,
• 2A a perspective view of the second one-way valve of the preferred embodiment of the invention,
• 2 B a perspective view of the cap of the preferred embodiment of the invention,
• 3 a sectional view of the preferred embodiment of the invention,
• 3A an enlarged illustration according to 3 ,
• 4th a representation of the state of use of the preferred embodiment of the invention,
• 5 a representation of a further state of use of the preferred embodiment of the invention,
• 5A an enlarged illustration according to 5 ,
• 5B a further enlarged illustration according to 5 .

Ways of Carrying Out the Invention

The possible embodiments of the present invention are described below, which are not intended to restrict the scope of the present invention.

1 to 5 show a preferred embodiment of the suction cup according to the invention 1 holding a suction cup 10 , a first one-way valve 30th and a second one-way valve 40 includes.

The suction cup element 10 has a base body 11 , a control 12th that is movable on the base body 11 is arranged, a first channel 15th and a second channel 16 on. The base body 11 has a base part 111 and an elastically deformable lower part 112 . The lower part 112 is on the base part 111 arranged. The lower part 112 can on a base plane 2 lie. The base body 11 forms a first air chamber 13th . Between the control 12th and the base body 11 is a second air chamber 14th educated. The first channel 15th connects the first air chamber 13th and the second air chamber 14th . The control 12th forms the second channel 16 . The first one-way valve 30th is in the first channel 15th arranged to the first channel 15th to open or close to allow the fluid from the first air chamber 13th to the second air chamber 14th can flow. The second one-way valve 40 is in the second channel 16 arranged to the second channel 16 to open or close to allow the fluid from the second air chamber 14th can flow outwards. The first and second one-way valves 30th , 40 allow the fluid to enter the first air chamber 13th and the second air chamber 14th can only flow out in one direction in order to increase the adhesive force. The control 12th cannot easily be activated by an external force in the opposite direction of the lower part in a negative pressure state (for example negative pressure of 0.533 bar) 112 move. An elastic element 50 is between the control 12th and the base part 111 arranged to provide an elastic force for the control 12th to create. The control 12th In a negative pressure state (for example, negative pressure of 0.533 bar), it cannot easily be influenced by an external force in the opposite direction of the elastic member 50 move. The fluid can be a gas or a liquid. In this embodiment, the lower part 112 a silicone suction cup and is elastically deformable.

The first one-way valve 30th and the second one-way valve 40 are designed the same, but can be different in other embodiments which are not the subject of the present invention. Therefore, only the detailed features of the second one-way valve are presented below 40 described in detail. The first one-way valve 30th is not described. The second one-way valve 40 has an upper section 41 , a neck section 42 and a lower section 43 . The neck section 42 extends through the second channel 16 . The upper section 41 seals a first opening 161 of the second channel 16 from. The lower section 43 seals one of the first openings 161 opposite second opening 162 of the second channel 16 from. The lower section 43 has a cross shape and has a plurality of transverse sealing lips 44 to facilitate deformation and achieve a better sealing effect. It should be noted that the first one-way valve 30th and the second one-way valve 40 consist of deformable materials so that the lower section 43 the second opening 162 deformable seals and the fluid can only enter in one direction.

The control 12th is with a sealing ring 20th Mistake. The sealing ring 20th lies on the base part 111 at. The control 12th has an annular groove 17th . The sealing ring 20th is in the ring groove 17th arranged and is located between the annular groove 17th and the base part 111 to prevent the sealing ring 20th relative to the control 12th slips so that between the control 12th and the base part 111 a better airtightness is achieved. In the present embodiment, the sealing ring is 20th a ring that is releasable around the control 12th is placed and consists of elastically deformable material. Alternatively, the sealing ring can also be designed in one piece with the control element. More precisely, the sealing ring has 20th an outer ring surface 21 that have at least one outer flange 22nd forms on the inner wall of the base part 11 is applied to create an airtight effect so that between the control 12th and the base part 111 airtightness is achieved. According to the invention, there are a large number of outer flanges 22nd which are spaced from each other for easy movement and close airtightness. The sealing ring 20th has one of the outer ring surfaces 21 opposite inner ring surface 23 . The ring groove 17th forms a plurality of annular projections 171 , which is the radially inner ring surface 23 push, causing the outer flanges 22nd the outer ring surface 22nd tight against the inner wall of the base part 111 be pressed to increase the airtight effect.

The suction cup 1 further comprises a cap 60 attached to the control 12th is arranged and the second one-way valve 40 covers to the second one-way valve 40 to protect so the second one-way valve 40 not by an external force from the second channel 16 is resolved. There is preferably at least one outlet channel 70 between the cap 60 and the control 12th educated. Every exhaust port 70 connects the second channel 16 with the ambient air. According to the invention is a plurality of outlet channels 70 intended. The control 12th forms a multitude of outlet channels 70 . Every exhaust port 70 has a first outlet section 71 and a second outlet section 72 that is transverse to the first outlet section 71 runs. More precisely, the cross section of the control 12th an inverted U shape. The control 12th has an end face 121 and a lateral surface 122 . Every exhaust port 70 also has a third outlet section 73 that is transverse to the second outlet section 72 runs. The first outlet section 71 is located on the face 121 . The second outlet section 72 is located on the lateral surface 122 . The control 12th forms with the cap 60 the third outlet section 73 . This allows the fluid to be discharged smoothly. In other embodiments, the number of outlet sections of the outlet channels is not limited and can be selected as required.

The control 12th has an identification section 123 . If the control 12th is moved, the identification section 123 in and out of the base body 11 be pushed. In that the identification section 123 inside or outside the base body 11 the vacuum state can be identified. For example, if the identification section 123 gradually from the base body 11 leaks, it means that the vacuum state is weakened. According to the invention, the identification section has 123 one color, in particular, has the control 12th a color. The cap 60 covers part of the control 12th and the identification section 123 lies outside the cap 60 . The identification section 123 belongs to part of the control 12th . The control 12th and the identification section 123 are integrally formed and colored, which facilitates manufacture and processing, so that the identification section 123 not from the control 12th solves. In the present embodiment, the identification section 123 also be formed by a ring. In other embodiments, the identification portion can be a color icon on the control element. The identification section 123 is not outside of the base body in the negative pressure state 11 , whereby the negative pressure state can be accurately identified.

The cap 60 has at least one first connection structure 61 . The control 12th has at least one second connection structure 124 with the at least one first connection structure 61 connected is. According to the invention, there are a plurality of first connection structures 61 and a plurality of second connection structures 124 intended. The first connection structures 61 and the second connection structures 124 are hooked. Alternatively, the first connection structure and the second connection structure can be formed by an internal thread and an external thread which are screwed.

The base body 11 also has a lid 113 on. The lid 113 is on the base part 111 arranged. The lid 113 has at least a first hook portion 114 . The base part 111 has at least one second hook portion 115 , the one with the first hook section 114 is hooked. The lid 113 is with a through hole 116 Mistake. The control 12th can through the through hole 116 go through it so that the lid is 113 not easy from the base part 11 solves. According to the invention there are a plurality of first hook sections 114 and a plurality of second hook portions 115 intended. The through hole 116 is coaxial with the control 12th and defines a central axis L1 . The first hook sections 114 and the second hook portions 115 are around the central axis L1 arranged around to increase the joint strength. At least the first hook section 114 or the second hook portion 115 has an inclined guide surface. The inclined guide surface extends in the radial direction of the central axis L1 to facilitate assembly. In the present embodiment, have the first hook portion 114 and the second hook portion 115 both have an inclined guide surface 80 , 81 . The inclined guide surface of the first hook section 114 of the lid 113 is the base part 111 facing and extending in the radial direction of the central axis L1 . The inclined guide surface 81 of the second hook section 115 of the base part 115 is the lid 113 facing and extending in the radial direction of the central axis L1 .

The base body 11 also has an inlet channel 90 on, the one with the first air chamber 13th and the ambient air is connected. The lower part 112 is also equipped with a relief valve 91 Mistake. The relief valve 91 has a through hole 92 that with the intake port 90 communicates with the through hole 92 the inlet duct 90 can open and close. More specifically, has the relief valve 91 a basic part 93 , an oval pressure ring 94 and a plurality of radially extending ribs 95 that is between the oval pressure ring 94 and the base part 93 are connected. The basic part 93 is with the through hole 92 Mistake. When the opposite two sides of the oval pressure ring 94 can be pressed, the base part 93 deformed, creating the through hole 93 opened so that the pressure can be relieved. In addition, excessive deformation of the base part 93 be prevented. In other embodiments, the oval Pressure ring also have a round, square, polygonal shape or the like.

It also includes the suction cup 1 also a hanging hook 19th . The base body 11 or the hanging hook 19th is provided with a first latching structure. The other is provided with a second latching structure. In the present embodiment, the base body has 11 the first latching structure 18th . The hanging hook 19th has the second latching structure 191 . The first interlocking structure 18th includes a snap hole 181 and a disc 182 with the snap hole 181 . The snap hole 181 is continuous. The second interlocking structure 191 includes a snap-in groove 192 and has a shape that is the shape of the snap hole 181 corresponds to. The second interlocking structure 191 can through the snap hole 181 be guided, with the disc 182 into the snap-in groove 192 clicks into place. More specifically, the second has a latching structure 191 a leaf shape and has a thick portion 193 and a thin section 194 . The thick section 193 and the thin section 194 can the disc 182 Press to increase the connection force.

In use the control 12th pressed and relative to the base body 11 emotional. The air pressure of the second air chamber 14th deforms the second one-way valve 40 , making the second channel 16 is opened so that the fluid flows out of the second air chamber. The fluid of the first air chamber 13th flows through the pressure difference with the second air chamber 14th , creating the first one-way valve 30th is deformed (in the embodiment, the first one-way valve 30th pressed) so that the fluid enters the second air chamber 14th flows. Therefore a vacuum is created and thus a better adhesive effect is achieved.

In summary, the suction cup according to the invention improves the airtightness effect through the first one-way valve and the wide one-way valve. In addition, in the negative pressure state (for example, negative pressure of 0.533 bar), the control member cannot be easily moved by the pressing force of the elastic member, which may result in the identification portion being exposed, whereby the identification portion can effectively identify the vacuum state.

List of reference symbols

1

suction cup

2

Base area

10

Suction cup element

11

Base body

111

Base part

112

Lower part

113

cover

114

first hook section

115

second hook section

116

Through hole

12th

Control

121

Face

122

Outer surface

123

Identification section

124

second connection structure

13th

first air chamber

14th

second air chamber

15th

first channel

16

second channel

161

first opening

162

second opening

17th

Ring groove

171

annular projection

18th

first latching structure

181

Snap hole

182

disc

19th

Hanging hook

191

second latching structure

192

Snap-in groove

193

thick section

194

thin section

20th

Sealing ring

21

outer ring surface

22nd

Outer flange

23

inner ring surface

30th

first one-way valve

40

second one-way valve

41

upper section

42

Neck section

43

lower section

44

Sealing lip

50

elastic element

60

cap

61

first connection structure

70

Exhaust duct

71

first outlet section

72

second outlet section

73

third outlet section

80.81

inclined guide surface

90

Inlet port

91

Relief valve

92

Through hole

93

Basic part

94

oval pressure ring

95

rib

L1

Central axis

Claims (1)

Suction cup (1), with a suction cup element (10) which has a base body (11), a control element (12) which is movably arranged on the base body (11), a first channel (15) and a second channel (16) , wherein the base body (11) has a base part (111) and an elastically deformable lower part (112), wherein the lower part (112) is arranged on the base part (111) and can lie on a base surface (2), the base body ( 11) forms a first air chamber (13), a second air chamber (14) being formed between the control element (12) and the base body (11), the first channel (15) having the first air chamber (13) and the second air chamber ( 14) connects, the control element (12) forming the second channel (16); a first one-way valve (30) disposed in the first channel (15) to open or close the first channel (15) to allow fluid to flow from the first air chamber (13) to the second air chamber (14); and a second one-way valve (40) disposed in the second channel (16) to open or close the second channel (16) to allow fluid to flow outward from the second air chamber (14); characterized in that the control element (12) has an annular groove (17) and is provided with a sealing ring (20), the sealing ring (20) being arranged in the annular groove (17) and located between the annular groove (17) and the base part (111) is located, wherein the sealing ring (20) has an outer annular surface (21) which forms at least one outer flange (22) which rests against the inner wall of the base part (111), a plurality of outer flanges (22) being provided, wherein the sealing ring (20) has an inner ring surface (23) opposite the outer ring surface (21), the ring groove (17) forming a plurality of ring-shaped projections (171), the ring-shaped projections (171) pressing the inner ring surface (23) radially ; the control member (12) further has an identification portion (123), wherein when the control member (12) is moved, the identification portion (123) is slidable in and out of the base body (11), the identification portion (123) having a color; wherein a cap (60) is provided which is arranged on the control element (12) and covers the second one-way valve (40), the cap (60) covering a part of the control element (12) and the identification section (123) outside the cap (60) lies; wherein the control element (12) has a color; wherein the cap (60) has a plurality of first connection structures (61) and the control element (12) has a plurality of second connection structures (124) which are connected to the first connection structures (61), the first connection structures (61) and the second connection structures (124) are hooked; wherein a plurality of outlet channels (70) are provided between the cap (60) and the control element (12), wherein the control element (12) forms a plurality of outlet channels (70), each outlet channel (70) the second channel (16) connects to the ambient air, each outlet channel (70) having a first outlet section (71) and a second outlet section (72) which runs transversely to the first outlet section (71); wherein the base body (11) further comprises a lid (113), the lid (113) being arranged on the base part (111) and having a plurality of first hook portions (114), the base part (111) having a plurality of second hook portions (115) hooked with the first hook portions (114); wherein the cover (113) is provided with a through hole (116), wherein the control element (12) can pass through the through hole (116), the through hole (116) being coaxial with the control element (12) and having a central axis (L1) defined, wherein the first hook sections (114) and the second hook sections (115) are arranged around the central axis (L1), wherein the first hook section (114) or the second hook section (115) has an inclined guide surface, the inclined guide surface extends in the radial direction of the central axis (L1); wherein the base body (11) further has an inlet channel (90) which is connected to the first air chamber (13) and the ambient air, wherein the lower part (112) is further provided with a relief valve (91), the relief valve (91) has a through hole (92) communicating with the inlet channel (90), the through hole (92) being able to open and close the inlet channel (90); wherein an elastic element (50) is arranged between the control element (12) and the base part (111); wherein the first one-way valve (30) and the second one-way valve (40) are formed identically, the second one-way valve (40) having an upper portion (41), a neck portion (42) and a lower portion (43), the neck portion being mutually exclusive (42) extends through the second channel (16), the upper section (41) sealing a first opening (161) of the second channel (16), the lower section (43) having a second opening (162) opposite the first opening (161) the second channel (16), the lower portion (43) being cruciform and having a plurality of transverse sealing lips (44); wherein the suction cup (1) further comprises a hanging hook (19), wherein the base body (11) or the hanging hook (19) is provided with a first latching structure (18) and the other is provided with a second latching structure (191), the first latching structure (18) has a locking hole (181) and a washer (182) with the locking hole (181), the locking hole (181) being continuous, the second locking structure (191) having a locking groove (192) and having a shape that corresponds to the shape of the latching hole (181), the second latching structure (191) being able to be guided through the latching hole (181), the disk (182) latching into the latching groove (192).

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