A vacuum chuck

Abstract

The utility model discloses a kind of vacuum chuck, including chuck skeleton (1), the bottom of chuck skeleton (1) is connected with rubber (2), the air passage (3) is formed between rubber (2) and chuck skeleton (1), a plurality of first suction holes (4) of communicating air passage (3) are distributed on rubber (2), the outer portion of each first suction hole (4) is equipped with the lip ring (5) of connecting rubber (2), the inner side of lip ring (5) forms the first suction cavity (6) of communicating first suction hole (4).The utility model can improve the adsorption effect to hair surface article.

Description

Technical Field

[0001] This utility model relates to the field of suction cups, and in particular to a vacuum suction cup. Background Technology

[0002] Existing vacuum suction cups, as shown in patent 202422837405.2, include a handle, a suction cup frame, and a rubber sheet. The rubber sheet is fastened to the bottom of the suction cup frame, and the outer side of the rubber sheet adheres to the surface of the object through a lip. The inner side of the lip forms a suction chamber, so that when in use, the air in the suction chamber is drawn by the suction pump in the handle, thereby realizing the vacuum suction cup's function of adsorbing and moving objects.

[0003] However, when used to adhere to textured surfaces, the aforementioned vacuum suction cups often exhibit poor adhesion and are prone to slipping off. This is because the uneven surface of textured items creates numerous small, narrow air vents. The rubber lip, limited by its shape and hardness, cannot completely fill these vents during attachment and suction, resulting in air leakage and relatively poor adhesion stability. Furthermore, using a softer rubber for the lip increases the likelihood of breakage and reduces its lifespan. Additionally, the longer contact length between the lip and the item's surface makes it difficult to guarantee against air leakage at any point. If leakage occurs at any location, the adhesion effect is compromised, causing the vacuum suction cup to detach.

[0004] Therefore, existing vacuum suction cups have the problem of poor adsorption effect when adsorbing rough-textured items. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum suction cup that can improve the adsorption effect on textured items.

[0006] The technical solution of this utility model is as follows: A vacuum suction cup includes a suction cup skeleton, a rubber sheet is connected to the bottom of the suction cup skeleton, an air channel is formed between the rubber sheet and the suction cup skeleton, a plurality of first suction holes communicating with the air channel are distributed on the rubber sheet, and a lip ring is provided on the outside of each first suction hole to connect with the rubber sheet, and a first suction cavity communicating with the first suction hole is formed on the inside of the lip ring.

[0007] In the aforementioned vacuum suction cup, the outer side of the suction cup skeleton is fastened to a limiting plate via a stepped groove. The outer wall of the limiting plate is in contact with the rubber, and an air passage is formed between the inner wall of the limiting plate and the suction cup skeleton. Several air guide holes that cooperate with the first suction hole are distributed on the limiting plate.

[0008] In the aforementioned vacuum suction cup, the bottom periphery of the suction cup skeleton forms a fastening part, the periphery of the rubber is fastened and connected to the fastening part via a fastening groove, and the middle of the rubber is fastened and connected to a limiting plate.

[0009] In the aforementioned vacuum suction cup, the lower end of the fastening part is provided with an annular groove, and the periphery of the rubber is fastened to the groove by a retaining ring.

[0010] In the aforementioned vacuum suction cup, the bottom of the rubber sheet is provided with an annular lip, the bottom surface of which is lower than the lip ring, and a second suction cavity is formed on the inner side of the lip.

[0011] In the aforementioned vacuum suction cup, a second suction hole is provided in the middle of the rubber, and the outside of the second suction hole is in communication with the second suction cavity.

[0012] In the aforementioned vacuum suction cup, the inner walls of the lip ring and the lip edge are all formed with inclined deformable surfaces, and the inner diameter of the deformable surfaces gradually increases along the opening direction.

[0013] In the aforementioned vacuum suction cup, the rubber on the outer side of the lip is provided with a first deformation groove that matches the lip.

[0014] In the aforementioned vacuum suction cup, the rubber around the lip ring is provided with honeycomb-shaped reinforcing ribs, and the inner side of the reinforcing ribs forms several second deformation grooves that match the lip ring, with each lip ring located in one of the second deformation grooves.

[0015] In the aforementioned vacuum suction cup, the rubber sheet is hexagonal in shape.

[0016] Compared with the prior art, this utility model has the following characteristics: (1) The present invention, through the structural cooperation of the first suction hole and the lip ring, enables the bottom of the rubber to form several independent first suction chambers, and simultaneously pumps air from each first suction chamber with the air channel, thereby achieving adsorption on the surface of the item; under the above cooperation, the present invention can shorten the contact length between each lip ring and the surface of the item, thereby reducing the possibility of air leakage in the first suction chamber; on the other hand, when any one or several first suction chambers have air leakage problems, it will not affect the stable suction of other first suction chambers, thereby effectively improving the adsorption stability of the rough surface item; (2) By combining the structures of the second suction chamber and the second suction hole, the present invention can simultaneously suction the second suction chamber and the first suction chamber when pumping air, and the second suction chamber and the first suction chamber do not affect each other, thereby further improving the adsorption stability of the fabric. (3) By limiting the connection structure of the suction cup skeleton, the limiting plate and the rubber, on the one hand, the rubber can be used to fix the limiting plate to ensure the connection stability of the three. On the other hand, the rubber can be positioned by the cooperation of the slot and the ring. At the same time, the limiting plate can be positioned by the cooperation of the rubber and the suction cup skeleton, so that the air guide hole on the limiting plate can be completely aligned with the first suction hole on the rubber, effectively preventing the rubber from shifting due to force and affecting the suction stability of the vacuum suction cup. (4) By setting the deformable surface, the lip ring and lip edge can expand outward stably during the adsorption process and drive the suction cup skeleton to approach the surface of the object, thereby improving its adsorption stability; on this basis, by setting the first deformation groove and the second deformation groove, sufficient space can be left for the lip edge and lip ring to deform, thereby ensuring the deformation effect of the lip edge and lip ring during the adsorption process. Therefore, this invention can improve the adsorption effect on textured items. Attached Figure Description

[0017] Figure 1 This is the outline drawing of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 yes Figure 2 A magnified view from direction A; Figure 4 yes Figure 2 A magnified view from direction B.

[0018] The labels in the attached diagram are as follows: 1-suction cup skeleton, 2-rubber, 3-air passage, 4-first suction hole, 5-lip ring, 6-first suction chamber, 7-limiting plate, 8-air guide hole, 9-fastening part, 10-fastening groove, 11-slot, 12-snap ring, 13-lip edge, 14-second suction chamber, 15-second suction hole, 16-deformation surface, 17-first deformation groove, 18-second deformation groove. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0020] Example. A vacuum suction cup, configured as follows: Figure 1 As shown, it includes a suction cup frame 1, with a rubber sheet 2 connected to the bottom of the suction cup frame 1. An air channel 3 is formed between the rubber sheet 2 and the suction cup frame 1. Several first suction holes 4 connected to the air channels 3 are distributed on the rubber sheet 2. Each first suction hole 4 is provided with a lip ring 5 connected to the rubber sheet 2 on its outside. A first suction cavity 6 connected to the first suction hole 4 is formed on the inside of the lip ring 5. Each first suction cavity 6 is separated from each other and independently adsorbs the surface of the object.

[0021] The suction cup frame 1 is connected to the limiting plate 7 via a stepped groove. The outer wall of the limiting plate 7 is in contact with the rubber 2. An air passage 3 is formed between the inner wall of the limiting plate 7 and the suction cup frame 1. Several air guide holes 8 are distributed on the limiting plate 7 to cooperate with the first suction hole 4. Each air guide hole 8 corresponds to one first suction hole 4.

[0022] The suction cup frame 1 has a fastening part 9 around its bottom. The rubber 2 is fastened to the fastening part 9 around its perimeter via the fastening groove 10. The inner wall of the rubber 2 is fastened to the limiting plate 7 and the limiting plate 7 is squeezed by the elasticity, so that the limiting plate 7 is stably fastened in the stepped groove.

[0023] The lower end of the fastening part 9 is provided with an annular groove 11. The rubber 2 is fastened to the groove 11 by a retaining ring 12. The suction cup frame 1 limits the rubber 2 radially by the mutual fastening of the retaining ring 12 and the groove 11.

[0024] The bottom of the rubber sheet 2 is provided with an annular lip 13. There are one or more lips 13. The multiple lips 13 are distributed in an inner and outer interval along the radial direction of the rubber sheet 2. The bottom surface of the lip 13 is lower than the lip ring 5. The inner side of the lip 13 forms a second suction cavity 14. The first suction cavity 6 is located in the second suction cavity 14 and is separated from the second suction cavity 14 by the lip ring 5 during suction.

[0025] The rubber sheet 2 has a second suction hole 15 in the middle, and the outside of the second suction hole 15 is connected to the second suction cavity 14. The middle part of the limiting plate 7 is connected to the second suction hole 15 through the second air guide hole.

[0026] The top of the suction cup frame 1 is detachably connected to a handle. One end of the handle forms an air intake port that connects to the air passage 3. The air pump inside the handle simultaneously draws air from the first suction chamber 6 and the second suction chamber 14 through the cooperation of the air intake port, the air passage 3, the first suction hole 4 and the second suction hole 15, so that the first suction chamber 6 and the second suction chamber 14 are in a negative pressure state and adsorb objects.

[0027] The inner walls of the lip ring 5 and the lip edge 13 are all formed with inclined deformable surfaces 16, and the inner diameter of the deformable surfaces 16 gradually increases along the opening direction.

[0028] The outer side of the lip 13 is provided with a first deformation groove 17 that matches the lip 13.

[0029] The rubber 2 around the lip ring 5 is provided with honeycomb-shaped reinforcing ribs, and several second deformation grooves 18 that fit the lip ring 5 are formed on the inner side of the reinforcing ribs. The second deformation grooves 18 are hexagonal in shape, and each lip ring 5 is located in one second deformation groove 18.

[0030] The first deformation groove 17 and the second deformation groove 18 are respectively used to avoid the lip edge 13 and the lip ring 5 during deformation and adsorption, so that the two can be completely deformed under the suction action to ensure their adsorption effect.

[0031] The rubber sheet 2 is hexagonal in shape, and the lip ring 5, retaining ring 12, lip edge 13, and reinforcing rib are integrally formed with the rubber sheet 2.

[0032] The working principle of this utility model is as follows: During installation, the limiting plate 7 is first fastened to the suction cup frame 1. Then, the rubber sheet 2 is fitted onto the bottom of the suction cup frame 1 through the cooperation of the fastening part 9 and the fastening groove 10, and the rubber sheet 2 and the suction cup frame 1 are fastened together by the slot 11 and the retaining ring 12. At the same time, the inner wall of the rubber sheet 2 is fastened to the limiting plate 7. Under the above cooperation, the three can be connected to each other and form a radial limit, thereby preventing the rubber sheet 2 from shifting under force during the adsorption process, and making each air guide hole 8 and the first suction hole 4 correspond to each other.

[0033] In use, this invention utilizes a vacuum pump within the handle to simultaneously draw air from the second suction chamber 14 and each of the first suction chambers 6 via the air passage and air guide hole 8. This causes the lip 13 to fold inward under suction until the lip ring 5 contacts the surface of the object. Then, suction is applied as the lip ring 5 adheres to the surface of the object. Even when gaps appear at the point where the lip 13 contacts the object, the vacuum suction cup can still adsorb the object through each of the first suction chambers 6, effectively improving the adsorption effect and stability.

Claims

1. A vacuum suction cup, comprising a suction cup frame (1), wherein a rubber sheet (2) is connected to the bottom of the suction cup frame (1), characterized in that: An airway (3) is formed between the rubber sheet (2) and the suction cup skeleton (1). Several first suction holes (4) that connect to the airway (3) are distributed on the rubber sheet (2). Each first suction hole (4) is provided with a lip ring (5) that connects to the rubber sheet (2) on its outside. A first suction cavity (6) that connects to the first suction hole (4) is formed on the inside of the lip ring (5).

2. A vacuum suction cup according to claim 1, characterized in that: The suction cup skeleton (1) is connected to the limiting plate (7) by a stepped groove. The outer wall of the limiting plate (7) is in contact with the rubber (2). An air passage (3) is formed between the inner wall of the limiting plate (7) and the suction cup skeleton (1). Several air guide holes (8) that cooperate with the first suction hole (4) are distributed on the limiting plate (7).

3. A vacuum suction cup according to claim 2, characterized in that: The suction cup frame (1) has a fastening part (9) formed around its bottom perimeter. The rubber sheet (2) is fastened to the fastening part (9) around its perimeter via a fastening groove (10). The middle part of the rubber sheet (2) is fastened to the limiting plate (7).

4. A vacuum suction cup according to claim 3, characterized in that: The lower end of the fastening part (9) is provided with an annular groove (11), and the rubber (2) is fastened to the groove (11) by a retaining ring (12).

5. A vacuum suction cup according to claim 1, characterized in that: The bottom of the rubber sheet (2) is provided with an annular lip (13), the bottom surface of the lip (13) is lower than the lip ring (5), and the inner side of the lip (13) forms a second suction cavity (14).

6. A vacuum suction cup according to claim 5, characterized in that: The rubber sheet (2) has a second suction hole (15) in the middle, and the outside of the second suction hole (15) is connected to the second suction cavity (14).

7. A vacuum suction cup according to claim 5, characterized in that: The inner walls of the lip ring (5) and the lip edge (13) are all formed with inclined deformable surfaces (16), and the inner diameter of the deformable surfaces (16) gradually increases along the opening direction.

8. A vacuum suction cup according to claim 5, characterized in that: The outer side of the lip (13) is provided with a first deformation groove (17) that matches the lip (13).

9. A vacuum suction cup according to claim 1, characterized in that: The rubber (2) around the lip ring (5) is provided with honeycomb-shaped reinforcing ribs, and the inner side of the reinforcing ribs forms several second deformation grooves (18) that match the lip ring (5). Each lip ring (5) is located in a second deformation groove (18).

10. A vacuum suction cup according to claim 1, characterized in that: The rubber sheet (2) is hexagonal in shape.

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