Lip structure based on vacuum chuck

Abstract

The utility model discloses a lip edge structure based on a vacuum chuck, which comprises a lip edge main body (1), an adsorption surface is formed on one side of the lip edge main body (1), a plurality of sealing strips (2) are arranged on the adsorption surface side by side, the sealing strips (2) comprise first sealing strips (201) and second sealing strips (202), the first sealing strips (201) and the second sealing strips (202) are of strip-shaped structures, and the first sealing strips (201) and the second sealing strips (202) are of strip-shaped structures. And the section shape of the first sealing strip (201) is larger than that of the second sealing strip (202). The sealing performance and the use stability of the lip structure can be guaranteed at the same time.

Description

Technical Field

[0001] The utility model relates to a vacuum suction cup, in particular to a lip edge structure based on the vacuum suction cup. Background Art

[0002] In order to achieve stable suction of objects, the vacuum suction cup will be provided with a lip structure around its contact surface. The lip structure, as shown in Patent 200820080841.8, includes multiple sealing strips distributed in a ring shape at the bottom of the vacuum suction cup. The sealing strips are arranged side by side along the radial direction of the vacuum suction cup, and the deformation of the sealing strips after being compressed is utilized to completely fill the concave and convex parts of the surface of the object, thereby preventing the formation of gaps between the object and the vacuum suction cup to cause air leakage.

[0003] However, the defect of the existing lip structure is that, in terms of sealing performance, the smaller the cross-sectional shape of the sealing strip, the greater the deformation amplitude that can be formed after contacting the concave and convex parts, and the better the sealing performance. But relatively speaking, after the outer dimensions of the sealing strip are reduced, on the one hand, its processing quality is difficult to guarantee, that is, the sealing strip is prone to dimensional deviation or processing defects during the processing, which in turn affects its sealing stability; on the other hand, the structural strength and deformation resistance of the sealing strip are also weakened after being reduced, and it is more likely to cause permanent deformation and damage during subsequent use, or force opening during adsorption, and the use stability is poor. If the structural stability and service life of the sealing strip are improved by increasing its outer dimensions, it is easy for the sealing strip to fail to fully fit the surface of the object due to insufficient deformation. This also makes it difficult for manufacturers to simultaneously guarantee the sealing effect and stability of the lip structure.

[0004] Therefore, a vacuum suction cup lip structure that can balance sealing performance and usage stability is needed. Utility Model Content

[0005] The purpose of the utility model is to provide a lip structure based on a vacuum suction cup, which can simultaneously ensure the sealing performance and use stability of the lip structure.

[0006] The technical solution of the utility model: a lip structure based on a vacuum suction cup, including a lip body, one side of the lip body forming an adsorption surface, and a plurality of sealing strips are arranged side by side on the adsorption surface, the sealing strips include a first sealing strip and a second sealing strip, the first sealing strip and the second sealing strip are both strip structures, and the cross-sectional shape of the first sealing strip is larger than that of the second sealing strip.

[0007] In the aforementioned lip structure based on a vacuum suction cup, the first sealing strip and the second sealing strip are both arranged in a ring shape on the adsorption surface of the lip body, and the first sealing strip and the second sealing strip are arranged sequentially along the radial direction of the lip body, and the first sealing strip is located radially outside the second sealing strip.

[0008] In the aforementioned lip structure based on a vacuum suction cup, the number of the first sealing strip and the number of the second sealing strip are both one or more, and adjacent sealing strips are separated from each other with intervals left therebetween.

[0009] In the aforementioned lip structure based on a vacuum suction cup, the number of the first sealing strip is one, and the number of the second sealing strip is multiple.

[0010] In the aforementioned lip structure based on a vacuum suction cup, the cross-sectional shapes of the different second sealing strips gradually decrease from the outside to the inside along the radial direction of the lip body.

[0011] In the aforementioned lip structure based on a vacuum suction cup, the contact point at the bottom of the first sealing strip is the first contact point, and the contact point at the bottom of the second sealing strip is the second contact point. The first contact point and the second contact point of each sealing strip are connected in sequence to form an oblique line.

[0012] In the aforementioned lip structure based on a vacuum suction cup, a sealing groove for the sealing strip to be squeezed and deformed is formed between adjacent sealing strips, and two sealing grooves at different positions are the same or different.

[0013] In the aforementioned lip structure based on a vacuum suction cup, the top width of the sealing strip is a, the bottom width of the sealing strip is b, and the height of the sealing strip is c. The top width a of the first sealing strip is greater than the top width a of the second sealing strip, the bottom width b of the first sealing strip is greater than the bottom width b of the second sealing strip, and the height c of the first sealing strip is greater than the height c of the second sealing strip.

[0014] Compared with the prior art, the utility model has the following characteristics:

[0015] (1) The utility model uses a first sealing strip and a second sealing strip of different external dimensions, which can, on the one hand, improve the processing accuracy and stability of the first sealing strip and reduce the sealing problems caused by dimensional deviation or processing defects of the first sealing strip during use; on the other hand, the first sealing strip is more stable during later use and is not prone to permanent deformation, breakage, or force opening, thereby ensuring the suction effect of the vacuum suction cup; on this basis, the second sealing strip can fit the object from the inside of the first sealing strip, and the second sealing strip can fill the gap that cannot be completely filled by the first sealing strip by utilizing the larger deformation characteristic, thereby achieving complete sealing of the lip body around the object and improving its sealing performance;

[0016] (2) By limiting the number and distribution position of the first sealing strip and the second sealing strip, when any second sealing strip is deformed and damaged to form a gap, the gap can be filled by other second sealing strips, thereby effectively alleviating the impact of structural defects of some second sealing strips on the overall sealing of the lip body;

[0017] (3) By limiting the height of the first contact point and the second contact point, the lip body can also form an inclined contact surface at the bottom of the adsorption surface, so that when the lip body is squeezed and adsorbed on the surface of an object, the sealing effect on the object can be improved by the overall deformation of the lip body after being pressed, and the first sealing strip with higher structural strength can bear more deformation force, thereby achieving the adsorption effect while reducing the possibility of deformation and damage of the external sealing strip due to excessive force;

[0018] Therefore, the utility model can simultaneously ensure the sealing performance and the use stability of the lip structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of Example 1;

[0020] Figure 2 yes Figure 1 A-direction enlarged view;

[0021] Figure 3 is a schematic diagram of the structure of the sealing strip in Example 2;

[0022] Figure 4 Schematic diagram of the structure of the sealing strip in Example 3.

[0023] The markings in the accompanying drawings are: 1-lip body, 2-sealing strip, 3-first contact point, 4-second contact point, 5-oblique line, 6-sealing groove, 201-first sealing strip, 202-second sealing strip. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0025] Embodiment 1. A lip structure based on a vacuum suction cup, comprising: Figure 1-2 As shown, it includes a lip body 1 arranged at the bottom of the vacuum suction cup, and one side of the lip body 1 forms an inclined adsorption surface. Figure 4 The dotted line α in the figure shows that the slope of the adsorption surface is 7°, and a plurality of sealing strips 2 are arranged side by side on the adsorption surface, wherein the sealing strips 2 include a first sealing strip 201 and a second sealing strip 202. Both the first sealing strip 201 and the second sealing strip 202 are strip-shaped structures, and the cross-sectional shape of the first sealing strip 201 is larger than that of the second sealing strip 202. The first sealing strip 201, the second sealing strip 202 and the lip main body 1 are an integrally formed structure.

[0026] The first sealing strip 201 and the second sealing strip 202 are both arranged in a ring shape on the adsorption surface of the lip body 1. The first sealing strip 201 and the second sealing strip 202 are arranged in sequence along the radial direction of the lip body 1 and remain concentric with the lip body 1. The first sealing strip 201 is located radially outside the second sealing strip 202.

[0027] The number of the first sealing strip 201 is one, the number of the second sealing strip 202 is three, and adjacent sealing strips 202 are separated from each other with intervals.

[0028] Assuming that the top width of the sealing strip 2 is a, the bottom width of the sealing strip 2 is b, and the height of the sealing strip 2 is c, the top width a of the first sealing strip 201 is 3 mm, the bottom width b of the first sealing strip 201 is 1.6 mm, and the height c of the first sealing strip 201 is 3.1 mm; the top widths a of the three second sealing strips 202 are 2.2 mm, 2.1 mm and 2 mm from outside to inside, and the bottom widths b of the three second sealing strips 202 are all 1.2 mm.

[0029] The contact point at the bottom of the first sealing strip 201 is the first contact point 3, and the contact point at the bottom of the second sealing strip 202 is the second contact point 4. The first contact point 3 and the second contact point 4 of each sealing strip 2 are connected in sequence to form an oblique line 5, and the inclination of the oblique line 5 is 10°.

[0030] A sealing groove 6 is formed between adjacent sealing strips 2 for extrusion and deformation of the sealing strips 2. The shapes of the sealing grooves 6 between adjacent second sealing strips 202 are consistent. The outer dimensions of the sealing groove 6 between the first sealing strip 201 and the second sealing strip 202 are greater than the outer dimensions of the sealing groove 6 between adjacent second sealing strips 202.

[0031] This embodiment defines the structure of the first sealing strip 201 and the second sealing strip 202. On the one hand, the manufacturer can relatively improve the processing quality of the first sealing strip 201 during processing, and reduce the sealing problem of the first sealing strip 201 caused by processing defects; on the other hand, the structural strength and stability of the first sealing strip 201 can be improved compared with the second sealing strip 202 in actual use, that is, it is not easy to be permanently deformed or damaged by external compression, thereby improving the overall sealing stability and service life of the lip body 1. On this basis, through the cooperation and sealing of the small-sized second sealing strip 202, the gap between the first sealing strip 201 and the object after bonding can be filled, that is, the sealing problem caused by the insufficient deformation of the first sealing strip 201 can be eliminated, thereby ensuring the suction effect of the lip body 1. Under the above cooperation, it can take into account the sealing and use stability of the lip body 1, and eliminate the defects caused by the size problem of the existing sealing strip 2.

[0032] On the basis of the above, this embodiment can further improve the overall sealing performance of the lip structure and optimize the filling effect of the second sealing strip 202 on the first sealing strip 201 by specifically limiting the external dimensions and distribution positions of the first sealing strip 201 and the second sealing strip 202 .

[0033] Embodiment 2. A lip structure based on a vacuum suction cup, comprising: Figure 3 As shown, it includes a lip body 1 arranged at the bottom of the vacuum suction cup, one side of the lip body 1 forms an adsorption surface, and a plurality of sealing strips 2 are arranged side by side on the adsorption surface, and the sealing strips 2 include a first sealing strip 201 and a second sealing strip 202. The first sealing strip 201 and the second sealing strip 202 are both strip structures, and the cross-sectional shape of the first sealing strip 201 is larger than that of the second sealing strip 202. The first sealing strip 201, the second sealing strip 202 and the lip body 1 are an integrally formed structure.

[0034] The first sealing strip 201 and the second sealing strip 202 are both arranged in a ring shape on the adsorption surface of the lip body 1. The first sealing strip 201 and the second sealing strip 202 are arranged in sequence along the radial direction of the lip body 1 and remain concentric with the lip body 1. The first sealing strip 201 is located radially outside the second sealing strip 202.

[0035] The number of the first sealing strip 201 is one, the number of the second sealing strip 202 is three, and adjacent sealing strips 202 are separated from each other with intervals.

[0036] Assuming that the top width of the sealing strip 2 is a, the bottom width of the sealing strip 2 is b, and the height of the sealing strip 2 is c, the top width a of the first sealing strip 201 is greater than the top width a of each second sealing strip 202, the bottom width b of the first sealing strip 201 is greater than the bottom width b of each second sealing strip 202, and the height c of the first sealing strip 201 is greater than the height c of each second sealing strip 202; the bottom width b of each second sealing strip 202 is the same, and the top width a and height c of each second sealing strip 202 gradually decrease from outside to inside along the radial direction of the lip body 1.

[0037] The contact point at the bottom of the first sealing strip 201 is the first contact point 3 , the contact point at the bottom of the second sealing strip 202 is the second contact point 4 , and the first contact point 3 and the second contact point 4 of each sealing strip 2 are sequentially connected to form an oblique line 5 .

[0038] A sealing groove 6 is formed between adjacent sealing strips 2 for extrusion and deformation of the sealing strips 2. The shapes of the sealing grooves 6 between adjacent second sealing strips 202 are consistent. The outer dimensions of the sealing groove 6 between the first sealing strip 201 and the second sealing strip 202 are greater than the outer dimensions of the sealing groove 6 between adjacent second sealing strips 202.

[0039] By gradually reducing the outer dimensions of each second sealing strip 202 from outside to inside in the radial direction, second sealing strips 202 of different sizes can be used to adapt to contact surfaces with different undulating effects, thereby further improving the suction effect on the contact surface.

[0040] Embodiment 3. A lip structure based on a vacuum suction cup, comprising: Figure 4 As shown, it includes a lip body 1 arranged at the bottom of the vacuum suction cup, one side of the lip body 1 forms an adsorption surface, and a plurality of sealing strips 2 are arranged side by side on the adsorption surface, and the sealing strips 2 include a first sealing strip 201 and a second sealing strip 202. The first sealing strip 201 and the second sealing strip 202 are both strip structures, and the cross-sectional shape of the first sealing strip 201 is larger than that of the second sealing strip 202. The first sealing strip 201, the second sealing strip 202 and the lip body 1 are an integrally formed structure.

[0041] The first sealing strip 201 and the second sealing strip 202 are both arranged in a ring shape on the adsorption surface of the lip body 1. The first sealing strip 201 and the second sealing strip 202 are arranged in sequence along the radial direction of the lip body 1 and remain concentric with the lip body 1. The first sealing strip 201 is located radially outside the second sealing strip 202.

[0042] There are two first sealing strips 201 with the same outer dimensions. There are two second sealing strips 202 with the same outer dimensions. Adjacent sealing strips 202 are separated from each other with a gap.

[0043] Assuming that the top width of the sealing strip 2 is a, the bottom width of the sealing strip 2 is b, and the height of the sealing strip 2 is c, the top width a of the first sealing strip 201 is greater than the top width a of the second sealing strip 202, the bottom width b of the first sealing strip 201 is greater than the bottom width b of the second sealing strip 202, and the height c of the first sealing strip 201 is greater than the height c of the second sealing strip 202.

[0044] The contact point at the bottom of the first sealing strip 201 is the first contact point 3 , the contact point at the bottom of the second sealing strip 202 is the second contact point 4 , and the first contact point 3 and the second contact point 4 of each sealing strip 2 are sequentially connected to form an oblique line 5 .

[0045] Sealing grooves 6 for the sealing strips 2 to be squeezed and deformed are formed between adjacent sealing strips 2 , and the outer dimensions of the sealing grooves 6 between different sealing strips 2 are different from each other.

[0046] This embodiment can also achieve the sealing effect and stability by adjusting the number and structure of the first sealing strip 201 and the second sealing strip 202 .

Claims

1. A lip structure based on a vacuum suction cup, characterized in that: The invention comprises a lip body (1), one side of the lip body (1) forms an adsorption surface, and a plurality of sealing strips (2) are arranged side by side on the adsorption surface, wherein the sealing strips (2) comprise a first sealing strip (201) and a second sealing strip (202), the first sealing strip (201) and the second sealing strip (202) are both strip-shaped structures, and the cross-sectional shape of the first sealing strip (201) is larger than that of the second sealing strip (202).

2. A lip structure based on a vacuum suction cup according to claim 1, characterized in that: The first sealing strip (201) and the second sealing strip (202) are both arranged in an annular shape on the adsorption surface of the lip body (1); the first sealing strip (201) and the second sealing strip (202) are arranged in sequence along the radial direction of the lip body (1); the first sealing strip (201) is located radially outside the second sealing strip (202).

3. A lip structure based on a vacuum suction cup according to claim 2, characterized in that: The number of the first sealing strip (201) and the number of the second sealing strip (202) are both one or more, and adjacent sealing strips (2) are separated from each other and spaced apart.

4. A lip structure based on a vacuum suction cup according to claim 3, characterized in that: The number of the first sealing strip (201) is one, and the number of the second sealing strip (202) is a plurality.

5. A lip structure based on a vacuum suction cup according to claim 4, characterized in that: The cross-sectional shapes of the different second sealing strips (202) gradually decrease from outside to inside along the radial direction of the lip edge body (1).

6. A lip structure based on a vacuum suction cup according to claim 1, characterized in that: The contact point at the bottom of the first sealing strip (201) is the first contact point (3), and the contact point at the bottom of the second sealing strip (202) is the second contact point (4). The first contact point (3) and the second contact point (4) of each sealing strip (2) are connected in sequence to form an oblique line (5).

7. A lip structure based on a vacuum suction cup according to claim 6, characterized in that: A sealing groove (6) for the sealing strip (2) to be squeezed and deformed is formed between adjacent sealing strips (2), and two sealing grooves (6) at different positions are the same or different.

8. The lip structure based on a vacuum suction cup according to claim 1, characterized in that: Assuming that the top width of the sealing strip (2) is a, the bottom width of the sealing strip (2) is b, and the height of the sealing strip (2) is c, the top width a of the first sealing strip (201) is greater than the top width a of the second sealing strip (202), the bottom width b of the first sealing strip (201) is greater than the bottom width b of the second sealing strip (202), and the height c of the first sealing strip (201) is greater than the height c of the second sealing strip.

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