CN210178737U

CN210178737U - Elastic colloid and vacuum chuck applying same

Info

Publication number: CN210178737U
Application number: CN201920320027.7U
Authority: CN
Inventors: Zhengbing Shi; 石正兵
Original assignee: Zhongshan Taili Household Products Manufacturing Co Ltd
Current assignee: Guangdong Taili Technology Group Co Ltd
Priority date: 2019-03-13
Filing date: 2019-03-13
Publication date: 2020-03-24
Anticipated expiration: 2029-03-13

Abstract

The utility model discloses an elastic colloid and applied this elastic colloid's vacuum chuck, this elastic colloid includes elastic skeleton, the upper portion of skeleton is equipped with the connecting rod, the cladding has gluey body on the skeleton, the bottom of gluing the body is provided with lower part open-ended and adsorbs the chamber, the connecting rod can draw and press the skeleton so that glue the body and inhale tightly on the face of being adsorbed, adsorb the chamber from last to expanding outward gradually down, be provided with the circular conical surface on the lateral wall of adsorbing the chamber, the top of circular conical surface is provided with the roof, form the joint portion between roof and the circular conical surface, the summit of adsorbing the chamber is the height that the circular conical surface is followed to H, the circumference diameter that the circular conical surface was followed is D, H and D will satisfy the following relational expression 0.05 be less than or equal to H/D and less than or equal to 0.10, the scope of circular conical surface and the contained angle α of the face of being adsorbed is 10 degrees α and is less than or equal to 17.

Description

Elastic colloid and vacuum chuck applying same

Technical Field

The utility model relates to an elastic colloid and applied this elastic colloid's vacuum chuck.

Background

The vacuum chuck is a product which can be adsorbed on the wall surface. The back of the sucker is provided with the hook which can be used for hooking daily articles, is very convenient to use and is widely applied to common families at present.

Common vacuum chuck's structure is, including the elastic colloid that is used for adsorbing the wall, the bottom surface of elastic colloid is provided with the middle dark pot shape absorption chamber of shallow all around, and the middle part of elastic colloid upper surface is connected with the pressing part, and the cover is equipped with the sucking disc cover that surrounds the first half of elastic colloid on the pressing part, and through pressing the pressing part, but elastic colloid warp, extrudes pot shape and adsorbs the partial air in the chamber, makes the sucking disc inhale tightly on the wall.

According to the physics theory, under the condition that other conditions are not changed, the higher the vacuum degree of the vacuum suction cup in a tight suction state is, the larger the adsorption force is, and the larger the static friction force between the corresponding vacuum suction cup and the wall body is.

Therefore, the vacuum degree of the traditional vacuum sucker is increased as much as possible, and in order to increase the vacuum degree of the vacuum sucker, the center height of the pot-shaped suction cavity is increased by adopting a method, so that more air can be discharged when the pressing piece is pressed down, and the vacuum degree of the sucker is further improved. However, because the deformation amount of the elastic colloid is large, the elastic stress in the tight suction state is also large, so that the adhesion degree of the elastic colloid and the wall surface is poor, the edge of the bottom surface of the elastic colloid is easy to warp, air leakage can be caused, the sucking disc cannot keep long-term adsorption force, and the sucking disc falls off due to air leakage after a period of time; in addition, when the sucker is pressed, the sucker needs to generate a larger deformation amount, and the sucker can be pressed only by larger pressure, in the high-vacuum sucker appearing in the current market, the pressing force for pressing the sucker to enable the sucker to suck tightly is more than 150N, and for children and some female users, the installation of the sucker is very laborious.

Some designers develop a new approach, and the more critical factor that the sucker can be tightly sucked on the wall surface is the adsorption area, so that vacuum suckers with plane bottom surfaces are also available in the market. The utility model discloses a utility model patent application number 201410597164.7 just discloses a plane sucking disc base, and this plane sucking disc base comprises sucking disc body and screw, the bottom surface of sucking disc body is planar structure's adsorption plane, and the sucking disc body is inhaled tightly on the wall through this adsorption plane. However, the plane suction cup has many problems, firstly, the installation is inconvenient, and when the plane suction cup is installed, the air between the suction cup body and the wall surface must be expelled little by little, which takes a long time; secondly, when non-professional person installs this kind of sucking disc, mostly can be because operation method is not right and lead to having a lot of bubbles between sucking disc body and the wall, the result is that sucking disc body and wall laminating nature are relatively poor, drop easily.

SUMMERY OF THE UTILITY MODEL

In view of this, the main object of the present invention is to provide an elastic gel which is convenient for installation, has suitable adsorption force, and can be stably and durably adsorbed on the adsorption surface.

Another main objective of the present invention is to provide a vacuum chuck which is convenient for installation, has suitable adsorption force, and can be stably and durably adsorbed on the adsorption surface.

The utility model discloses a solve its technical problem and the technical scheme who adopts is:

an elastic colloid comprises an elastic framework, wherein a connecting rod is arranged at the upper part of the framework, the framework is coated with a colloid body, an adsorption cavity with an opening at the lower part is arranged at the bottom of the colloid body, the connecting rod can pull and press the framework to enable the colloid body to be tightly adsorbed on an adsorbed surface, the adsorption cavity is gradually expanded outwards from top to bottom, a conical surface is arranged on the side wall of the adsorption cavity, a top wall is arranged above the conical surface, a combining part is formed between the top wall and the conical surface, the height from the top point of the adsorption cavity to the lower edge of the conical surface is H, the circumferential diameter of the lower edge of the conical surface is D, the H and D satisfy the following relational expression that H/D is more than or equal to 0.05 and less than or equal to 0.10, and the included angle α between the conical surface and the adsorbed surface is more than or equal to α and less.

Preferably, the joint is a turning line formed between the top wall of the adsorption cavity and the conical surface;

preferably, the joint is a circular arc transition surface formed between the top wall and the conical surface of the adsorption cavity;

preferably, the framework is in a pot cover shape with a high middle part and a low periphery, and a plurality of radially extending branches are arranged at the outer edge of the framework.

Preferably, the upper side of the fork is provided with a radial convex rib protruding out of the glue body.

Preferably, the framework is provided with radially arranged elongated holes. The long hole is positioned between the connecting rod and the fork.

Preferably, the height from the vertex of the adsorption cavity to the lower edge of the conical surface is H, the circumferential diameter of the lower edge of the conical surface is D, and the H and the D satisfy the following relation: H/D is more than or equal to 0.065 and less than or equal to 0.085.

Preferably, the included angle α between the conical surface and the adsorbed surface is in the range of 14- α -17 degrees.

Preferably, the width of the conical surface is L, and L and D satisfy the following relation: L/D is more than or equal to 0.18.

Preferably, L and D satisfy the following relationship: L/D is more than or equal to 0.26 and less than or equal to 0.30.

Preferably, the ceiling wall of the adsorption chamber is provided with a plane parallel to the surface to be adsorbed, and the joint is formed between the conical surface and the plane.

Preferably, the top wall of the adsorption cavity is provided with a plane parallel to the adsorbed surface, the outer edge of the plane is provided with a buffer surface extending obliquely downwards, and the joint part is formed between the conical surface and the buffer surface.

Preferably, an outward convex transition fillet is arranged between the conical surface and the outer side wall of the rubber body.

Preferably, the pressing force for pressing down the connecting rod to make the glue body tightly sucked is 70-110N.

The utility model also provides a vacuum chuck, it includes as above elastic colloid, the connecting rod on the cover be equipped with the sucking disc clamp plate, the upper portion of gluing the body or the upper portion top of skeleton are pressed in the bottom surface of sucking disc clamp plate, the upside of sucking disc clamp plate is equipped with the connecting piece, the connecting piece is connected with the connecting rod and can draws the pressure skeleton so that the body of gluing is inhaled tightly on by the adsorption plane.

The utility model has the advantages that:

firstly, the sucker of the utility model can ensure that the vacuum cavity has proper vacuum degree and proper adsorption area after the sucker is adsorbed on the adsorbed surface, and meanwhile, the adhesive degree of the adhesive body and the adsorbed surface is good, the adsorption force is durable, and the adhesive body is not easy to fall off;

secondly, when the sucker is installed on the wall surface, the sucker can be pressed tightly by applying 70-110N pressing force, the force is suitable, the force applying habit of hands is met, and the sucker accords with human engineering.

Drawings

FIG. 1 is an exploded view of the vacuum chuck of the present invention;

figure 2 is a cross-sectional view of embodiment 1 of the vacuum chuck of the present invention;

fig. 3 is a cross-sectional view showing a state of the vacuum chuck of embodiment 1 of the present invention in a tight state;

figure 4 is a cross-sectional view of embodiment 2 of the vacuum chuck of the present invention;

fig. 5 is a cross-sectional view of embodiment 3 of the vacuum chuck of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 1 to 5, the utility model provides an elastic colloid, including skeleton 1, the upper portion of skeleton 1 be equipped with connecting rod 11, skeleton 1 on the cladding have glue body 2, the bottom of glue body 2 is provided with lower part open-ended absorption chamber 21, connecting rod 11 can pull pressure skeleton 1 so that glue body 2 tightly adsorbs on adsorbed surface 5, absorption chamber 21 expands outward from top to bottom gradually, be provided with conical surface 22 on the lateral wall of absorption chamber 21, the top of conical surface 22 is provided with the roof, form junction 20 between roof and conical surface 22, the height of summit to conical surface 22 lower limb of absorption chamber 21 is H, the circumference diameter of conical surface 22 lower limb is D, H and D satisfy the following relational expression that 0.05 is not less than H/D and is not more than 0.10, the scope of α between conical surface 22 and adsorbed surface 5 is not less than α and not more than 17.

The joint 20 may be a turning line formed between the top wall of the adsorption chamber 21 and the conical surface 22, or may be an arc transition surface formed between the top wall of the adsorption chamber 21 and the conical surface 22.

Referring to fig. 1, the frame 1 is in a pot cover shape with a high middle and a low periphery, and a plurality of radially extending branches 12 are arranged at the outer edge of the frame 1. Further, the upper side of the fork 12 is provided with a radial rib 13 protruding from the glue body 2. Furthermore, the framework 1 is provided with radially arranged elongated holes 14. The elongated hole 14 is located between the connecting rod and the fork 12.

The utility model also provides a vacuum chuck who has used above-mentioned elastic colloid, wherein, connecting rod 11 on the cover be equipped with sucking disc clamp plate 3, the radial protruding muscle 13 roof pressure on skeleton 1 is in the bottom surface of sucking disc clamp plate 3, the upside of sucking disc clamp plate 3 is equipped with connecting piece 4, connecting piece 4 is connected with connecting rod 11 and can draws and press skeleton 1 so that glue body 2 tightly inhales on by adsorption plane 5.

Further, the width of the conical surface 22 is L, and L and D satisfy the following relation: L/D is more than or equal to 0.17.

Fig. 2 shows the cross-sectional view of embodiment 1 of the present invention, in this embodiment, the connecting member 4 is a hook, the top of the adsorption cavity 21 is provided with a plane 23 parallel to the adsorbed surface 5, the conical surface 22 uses the lower edge of the side wall of the adsorption cavity 21 as a starting point, and extends upward to intersect with the plane 23, so that the adsorption cavity 21 is in a truncated cone shape. The joint 20 is formed between the conical surface 22 and the flat surface 23.

Fig. 4 shows a cross-sectional view of embodiment 2 of the present invention, in this embodiment, the top wall of the adsorption cavity 21 is provided with a plane 23 parallel to the adsorbed surface 5, the outer edge of the plane 23 is provided with a buffer surface 24 extending downward from an incline, and the joint 20 is formed between the conical surface 22 and the buffer surface 24. The buffer surface 24 is a conical surface, and the inclination angle of the buffer surface 24 is smaller than that of the conical surface 22. Further, the buffer surface 24 may be a circular arc surface that transitions between the flat surface 23 and the conical surface 22, but is not limited thereto.

Fig. 5 shows a cross-sectional view of embodiment 3 of the present invention, and this embodiment has a similar structure to embodiment 2, which is different in that in this embodiment, the inclination angle of the buffering surface 24 is greater than the inclination angle of the conical surface 22.

When the sucker is used, the sucker is placed on the adsorbed surface 5, the bottom surface of the rubber body 2 is attached to the adsorbed surface 5, then the connecting piece 4 is pressed, the sucker pressing plate 3 and the connecting rod 11 are pressed by the connecting piece 4, the framework 1 and the rubber body 2 are deformed, after external pressing force is removed, the framework 1 rebounds with the rubber body 2, the bottom of the rubber body 2 is upwards pulled to form a vacuum cavity, the bottom surface of the rubber body 2 is vacuumized with the adsorbed surface 5, and accordingly the sucker is adsorbed on the adsorbed surface 5. Compare with planar sucking disc, though the utility model discloses a sucking disc adsorption area is littleer, nevertheless only need gently according to just can inhale the sucking disc tightly on by the adsorption plane, simple to operate, and because the utility model discloses a skeleton 1 is in the elastic deformation state with gluey body 2 when the sucking disc is inhaled tightly, and the elasticity of the two self can play the effect of tightly grasping by adsorption plane 5, improves gluey body 2 and the degree of adhesion by adsorption plane 5.

The suction capacity of the suction cup is determined mainly by the area of the suction surface, the degree of vacuum of the vacuum chamber, and the degree of adhesion between the adhesive body 2 and the surface 5 to be sucked, and when L is long enough that only a part of the conical surface 22 is tightly sucked to the surface 5 to be sucked, the value of L1 measured at this time is the theoretical maximum value. The scheme of the utility model comprehensively considers the adsorption area, the vacuum degree, the adhesion degree and the proper adsorption area, and can ensure that the vacuum cavity has the proper vacuum degree after the sucker is adsorbed on the adsorbed surface 5; meanwhile, the adhesive body 2 and the adsorbed surface 5 have good adhesion, and the adsorption force is durable and is not easy to fall off.

As a further improvement of the present invention, the conical surface 22 and the outer sidewall of the glue body 2 are provided with an outward convex transition fillet 26 therebetween.

Table 1 below shows the measured data for 4 specific products, and the following 4 products all have the structure of example 1.

TABLE 1 actual measurement data of four products

	Product 1	Product 2	Product 3	Product 4
					D(mm)	54.98	54.98	54.98	54.98
H(mm)	5.14	4.45	3.76	3.06
					H/D	0.0935	0.0809	0.0684	0.0557
L1(mm)	9.75	14.75	16.35	12.25
					L1/D	0.1773	0.2683	0.2974	0.2228
α	16.75°	14.78°	12.21°	10.12°

In Table 1, H is the height from the top of the adsorption cavity 21 to the lower edge of the conical surface 22, D is the circumferential diameter of the lower edge of the conical surface 22, α is the included angle between the conical surface 22 and the adsorbed surface 5, the width of the conical surface 22 is L, and the width of the annular surface formed by tightly adsorbing the conical surface 22 and the adsorbed surface 5 is L1;

since the products 1 to 4 all adopt the structure shown in fig. 2, L is sufficiently long at this time, and therefore the value of L1 measured at this time is the theoretical maximum value thereof, and accordingly the adsorption area is also the theoretical maximum value thereof. This theory applies equally to examples 2 and 3. Of the four products tested in Table 1, L1/D has a value of 0.1773-0.2974, such that L.gtoreq.L 1, L and D satisfy the following relationship: L/D is more than or equal to 0.18.

The following tests were carried out on the mechanical properties of product 1, product 2, product 3 and product 4:

test 1: parallel pull test

The assembled suction cup sample was adsorbed on a vertical wall surface and then pulled vertically upward using a tensile machine at a speed of 30mm/min until the sample was released from the substrate. The maximum pull force during the above process was recorded.

Test 2: load bearing capacity test

The assembled suction cup sample was adsorbed on a vertical wall surface, and then a 16kg weight was hung on the hook of the suction cup and tested for 10 minutes. The displacement of the chuck after 10 minutes was recorded.

Test 3: endurance test

And adsorbing the assembled sucker sample on a vertical wall surface, then hanging a 3kg weight on a hook of the sucker, and testing for 15 days. The displacement of the chuck after 15 days was recorded.

Test 4: endurance test

And adsorbing the assembled sucker sample on a vertical wall surface, then hanging a weight of 5kg on a hook of the sucker, and testing for 15 days. The displacement of the chuck after 15 days was recorded.

In conclusion, the performances of the products 2 and 3 are obviously better than those of the products 1 and 4, and particularly, the durability is excellent, and the adsorption force can be kept for a long time without falling off. Therefore, in the best mode of the present invention, H, D and L1 should satisfy the following three expressions: H/D is more than or equal to 0.065 and less than or equal to 0.085; L1/D is more than or equal to 0.26 and less than or equal to 0.30. In the configuration shown in example 3, when the entire conical surface 22 is tightly sucked to the surface to be sucked 5, the adhesion is best. In this case, L is L1, i.e., L has a size range of 0.26. ltoreq.L/D. ltoreq.0.30.

Test 5: pressing force test

Press down connecting piece 4 with fixed pressing force, make gluey body 2 adsorb on by the adsorption plane, then, the height H1 and the adsorption area of test vacuum cavity to can make gluey body 2 inhale tight minimum pressing force and regard as the utility model provides a packing force.

From the test results of the above two products, it can be seen that, for the product 2, when the pressing force is greater than or equal to 110N, the values of H1 and the adsorption area are hardly changed, and at this time, the product 2 is in a tight-suction state, and the pressing force of the product 2 is 110N; for the product 3, when the pressing force is 70N or more, the values of H1 and the adsorption area hardly change any more, and at this time, the product 3 is in a state of being sucked tightly, and the pressing force of the product 3 is 70N. Therefore, for the elastic colloid of the present invention, the connecting rod 11 can be pressed down by using 70-110N pressing force, so that the colloid body 2 is completely tightly absorbed. The force is suitable, the force applying habit of hands is met, the human engineering is met, the sucker and the adsorbed surface can be guaranteed to have higher adhesion degree and larger adsorption area, and the adsorption force can be kept for a long time.

The above is only the preferred embodiment of the present invention, as long as the technical solution of the purpose of the present invention is realized by the substantially same means, all belong to the protection scope of the present invention.

Claims

1. An elastic colloid comprises an elastic framework (1), wherein a connecting rod (11) is arranged on the upper portion of the framework (1), the framework (1) is coated with a colloid body (2), an adsorption cavity (21) with an opening at the lower portion is formed in the bottom of the colloid body (2), the connecting rod (11) can pull and press the framework (1) to enable the colloid body (2) to be tightly adsorbed on an adsorbed surface (5), and the elastic colloid is characterized in that the adsorption cavity (21) gradually expands outwards from top to bottom, a conical surface (22) is arranged on the side wall of the adsorption cavity (21), a top wall is arranged above the conical surface (22), and a combination portion (20) is formed between the top wall and the conical surface (22);

the height from the vertex of the adsorption cavity (21) to the lower edge of the conical surface (22) is H, the circumferential diameter of the lower edge of the conical surface (22) is D, and the H and the D satisfy the following relational expression: H/D is more than or equal to 0.05 and less than or equal to 0.10;

the included angle α between the conical surface (22) and the adsorbed surface (5) is more than or equal to 10 degrees and less than or equal to α degrees and less than or equal to 17 degrees.

2. Elastic gel in accordance with claim 1, characterized in that the joint (20) is a turning line formed between the top wall of the adsorption cavity (21) and the conical surface (22).

3. Elastic gel in accordance with claim 1, characterized in that the junction (20) is a rounded transition surface formed between the top wall of the adsorption cavity (21) and the conical surface (22).

4. An elastic gel in accordance with claim 1, characterized in that the framework (1) is in the form of a pot lid with a high middle and a low periphery, and a plurality of radially extending branches (12) are arranged at the outer edge of the framework (1).

5. An elastic gel according to claim 4, characterised in that the upper side of the branches (12) is provided with radial ribs (13) protruding from the gel body (2).

6. An elastic gel according to claim 5, characterised in that said skeleton (1) is provided with radially arranged elongated holes (14), said elongated holes (14) being located between the connecting bars and the branches (12).

7. An elastic colloid according to any one of claims 1, 4, 5 and 6, characterized in that the height from the vertex of the adsorption cavity (21) to the lower edge of the conical surface (22) is H, the circumferential diameter of the lower edge of the conical surface (22) is D, and H and D satisfy the following relation: H/D is more than or equal to 0.065 and less than or equal to 0.085.

8. Elastic gel in accordance with any of claims 1, 4, 5, 6, characterized in that the angle α between the conical surface (22) and the surface (5) to be sucked is in the range of 14 ° ≦ α ≦ 17 °.

9. Elastic colloid according to any one of claims 1, 4, 5 and 6, characterized in that the width of the conical surface (22) is L, L and D are in the following relation: L/D is more than or equal to 0.18.

10. An elastic gel in accordance with claim 9, wherein L and D satisfy the following relationship: L/D is more than or equal to 0.26 and less than or equal to 0.30.

11. An elastic gel according to any one of claims 1 to 3, characterised in that the top wall of the adsorption cavity (21) is provided with a plane (23) parallel to the adsorbed surface (5), the joint (20) being formed between the conical surface (22) and said plane (23).

12. An elastic gel according to any one of claims 1 to 3, wherein the top wall of the adsorption cavity (21) is provided with a plane (23) parallel to the adsorbed surface (5), the outer edge of the plane (23) is provided with a buffer surface (24) extending obliquely downward, and the joint (20) is formed between the conical surface (22) and the buffer surface (24).

13. Elastic rubber body according to claim 1, characterized in that an outwardly convex transition fillet (26) is arranged between the conical surface (22) and the outer side wall of the rubber body (2).

14. Elastic gel in accordance with any of claims 1, 4, 5, 6 characterized in that the pressing force to press down the connecting rod (11) to make the gel body (2) suck is 70-110N.

15. A vacuum chuck, characterized in that it includes the elastic colloid of any one of claims 1 to 14, connecting rod (11) on the cover be equipped with sucking disc clamp plate (3), the upper portion of gluing body (2) or the upper portion top of skeleton (1) are pressed on the bottom surface of sucking disc clamp plate (3), the upside of sucking disc clamp plate (3) is equipped with connecting piece (4), connecting piece (4) are connected with connecting rod (11) and can draw and press skeleton (1) so that glue body (2) inhale tightly on by adsorption plane (5).