CN213940414U

CN213940414U - Rotatable positioning sucker

Info

Publication number: CN213940414U
Application number: CN202022914214.3U
Authority: CN
Inventors: 李一峰; 黄伟
Original assignee: Bear Electrical Appliance Co Ltd; Foshan Bear Intelligent Electric Appliance Co Ltd
Current assignee: Bear Electrical Appliance Co Ltd; Foshan Bear Intelligent Electric Appliance Co Ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-08-13
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a rotatable positioning sucking disc, including the sucking disc main part that is used for adsorbing the wall and cup joint the sucking disc cover that just is used for articulating article in the sucking disc main part, this sucking disc cover can rotate around the sucking disc main part, and realizes the location through groove block joint structure between this sucking disc cover and the sucking disc main part. The utility model discloses a but rotational positioning sucking disc through set up groove piece joint structure between sucking disc cover and sucking disc main part, can realize relative fixation between the two, avoids taking place relative motion between sucking disc cover and the sucking disc main part, guarantees good adsorption efficiency.

Description

Rotatable positioning sucker

Technical Field

The utility model relates to the field of household items, especially, relate to a rotatable positioning sucking disc.

Background

In daily life, some articles need to be hung on the wall of a room, a kitchen or a toilet or temporarily placed on the wall, but the position is inconvenient or the articles cannot be nailed and hung, and the suction cup type hanging device can be used for well solving the problems.

The sucking disc on the current market, do not set up location structure between its sucking disc main part and the sucking disc cover, after hanging article toward the sucking disc cover, because the gravity and the inertia effect of article, the swing appears easily, and then leads to taking place between sucking disc main part and the wall not hard up, leads to the adsorption efficiency variation.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a rotatable positioning sucker.

The utility model discloses a solve the technical scheme that its problem adopted and be:

the utility model provides a rotatable positioning sucking disc, is in including the sucking disc main part that is used for adsorbing the wall and cup joint just be used for articulating the sucking disc cover of article on the sucking disc main part, wherein:

the sucking disc cover can wind the sucking disc main part rotates, just realize the location through groove block joint structure between sucking disc cover and the sucking disc main part.

The utility model discloses a but rotational positioning sucking disc through set up groove piece joint structure between sucking disc cover and sucking disc main part, can realize relative fixation between the two, avoids taking place relative motion between sucking disc cover and the sucking disc main part, guarantees good adsorption efficiency.

Furthermore, the groove block clamping structure comprises a concave point arranged on the sucker cover and a convex point arranged on the sucker main body and clamped with the concave point; the number of the concave points or the convex points is multiple, and the concave points or the convex points are uniformly arranged along the circumferential direction;

or the groove block clamping structure is a convex point arranged on the sucker cover and a concave point arranged on the sucker main body and clamped with the convex point; the concave points or the convex points are multiple and are uniformly arranged along the circumferential direction.

From this, concave point or bump in this groove block joint structure have a plurality ofly, and all evenly arrange along the circumferencial direction to be convenient for adjust the angle between sucking disc cover and the sucking disc main part, strengthen its flexibility greatly.

Further, the sucker main body comprises a sucker body, the sucker body comprises a soft disk and a framework arranged in the soft disk, and the middle of the soft disk is concave to form a suction cavity; a plurality of first through grooves used for pressing deformation are uniformly distributed on the framework.

Therefore, when the tray body is pressed and the adsorption cavity is attached to the wall, the framework in the tray body is in a deformation state; when the external force is removed, the framework restores the original shape and drives the soft disc to move upwards, so that the adsorption cavity is in a vacuum state and adsorbs the wall.

Furthermore, the sucker main body also comprises a pressing plate sleeved on the disc body, and a plurality of second through grooves for pressing deformation are uniformly distributed on the pressing plate; the clamp plate border still is equipped with the flange limit, the equipartition has a plurality of third logical grooves that are used for pressing the back perk on the flange edge.

Therefore, when the pressing plate is pressed and the adsorption cavity in the plate body is driven to be attached to the wall, the pressing plate is in a deformation state; when the external force is removed, the pressing plate restores the original shape and drives the soft disc to move upwards, so that the adsorption cavity is in a vacuum state and is adsorbed on the wall, meanwhile, the flange edge is abutted against the edge of the soft disc and drives the edge of the soft disc to be attached to the wall, the soft disc can be firmly attached to the wall, and strong permanent suction force is formed.

Furthermore, the pressing plate is sequentially provided with a first boss and a second boss, the outer diameters of which are gradually increased, from top to bottom along the same axial direction; a first concave cavity is formed in the first boss, and a second concave cavity is formed in the second boss; the first concave cavity and the second concave cavity are arranged along the same axial direction and are communicated with each other, and the inner diameter of the second concave cavity is larger than that of the first concave cavity;

the framework is sequentially provided with a third boss and a fourth boss with gradually increasing outer diameters from top to bottom along the same axial direction;

when the pressing plate is sleeved on the tray body, the third boss extends into the first cavity, and the top surface of the third boss is abutted to the top surface of the first cavity; the fourth boss extends into the second cavity, and the top surface of the fourth boss is abutted to the top surface of the second cavity.

Furthermore, a first through hole is formed in the sucker cover, and the inner diameter of the first through hole is between the outer diameter of the first boss and the outer diameter of the second boss;

when the sucker cover is sleeved on the sucker main body, the first boss penetrates through the first through hole, and the top surface of the second boss is abutted to the bottom surface of the first through hole.

The pressing plate further comprises a second through hole arranged on the first boss of the pressing plate, a counter bore arranged on the third boss of the framework and a screw matched with the counter bore, wherein the second through hole and the counter bore are arranged along the same axial direction and are communicated with each other;

the outer diameter of the head of the screw is larger than the inner diameter of the first through hole;

when the sucker cover is sleeved on the sucker main body, the screw sequentially penetrates through the first through hole of the sucker cover and the second through hole of the pressing plate and is in threaded connection with the counter bore on the sucker body, and the pressing plate is clamped by the screw and the framework; the movable stroke of the sucker cover along the axial direction of the screw is limited between the head of the screw and the second boss of the pressing plate, and the sucker cover can rotate around the first boss of the pressing plate.

Therefore, after the screw is connected with the sucker main body in a threaded manner, the movement range of the sucker cover is limited between the screw and the sucker main body, and the sucker cover can rotate around the sucker main body. In addition, the sucker is simple in overall structure, convenient to install and detach, reusable and good in user experience.

Further, the screw driver further comprises a cover plate, wherein the cover plate is detachably connected to the sucker cover and shields the screw.

Therefore, the screws can be shielded by arranging the cover plate, so that the overall attractiveness of the sucker is improved.

Furthermore, a first groove which is communicated with the first through hole and is positioned above the first through hole is formed in the sucker cover along the axis direction of the first through hole, and the inner diameter of the first groove is larger than that of the first through hole; the cover plate is provided with a buckle, and a clamping groove matched with the buckle in a clamping mode is arranged in the first groove.

Furthermore, a second groove which is communicated with the first through hole and is positioned below the first through hole is formed in the sucker cover along the axis direction of the first through hole, and the inner diameter of the second groove is larger than that of the first through hole;

the concave points are arranged in the second grooves, and the convex points are arranged on the second bosses of the pressing plate; or the convex points are arranged in the second grooves, and the concave points are arranged on the second bosses of the pressing plate.

To sum up, the utility model discloses a but rotational positioning sucking disc has following technological effect:

(1) through set up groove piece joint structure between sucking disc cover and sucking disc main part, can realize the relative fixation between the two, avoid taking place relative motion between sucking disc cover and the sucking disc main part, guarantee good adsorption effect.

(2) The concave points or the convex points in the groove block clamping structure are multiple and are uniformly arranged along the circumferential direction, so that the angle between the sucker cover and the sucker main body can be conveniently adjusted, and the flexibility of the sucker cover is greatly enhanced.

(3) When the tray body is pressed and the adsorption cavity is enabled to be attached to the wall, the framework in the tray body is in a deformation state; when the external force is removed, the framework restores the original shape and drives the soft disc to move upwards, so that the adsorption cavity is in a vacuum state and adsorbs the wall.

(4) When the pressing plate is pressed and the adsorption cavity in the disc body is driven to be attached to the wall, the pressing plate is in a deformation state; when the external force is removed, the pressing plate restores the original shape and drives the soft disc to move upwards, so that the adsorption cavity is in a vacuum state and is adsorbed on the wall, meanwhile, the flange edge is abutted against the edge of the soft disc and drives the edge of the soft disc to be attached to the wall, the soft disc can be firmly attached to the wall, and strong permanent suction force is formed.

(5) After the screw is in threaded connection with the sucker main body, the moving range of the sucker cover is limited between the screw and the sucker main body, and the sucker cover can rotate around the sucker main body. In addition, the sucker is simple in overall structure, convenient to install and detach, reusable and good in user experience.

Drawings

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

fig. 2 is an exploded view of the tray body of the present invention;

FIG. 3 is a schematic cross-sectional view of the tray body of the present invention;

FIG. 4 is a schematic structural view of the pressing plate of the present invention;

FIG. 5 is a schematic cross-sectional view of the pressing plate of the present invention;

FIG. 6 is a schematic structural view of the sucker cover of the present invention;

FIG. 7 is a schematic structural view of another view angle of the sucker cover of the present invention;

FIG. 8 is a schematic structural view of the rotatable positioning chuck of the present invention;

FIG. 9 is a schematic cross-sectional view of the rotatable positioning chuck of the present invention;

FIG. 10 is an enlarged view of a portion A of FIG. 9;

fig. 11 is a schematic view of a part of the structure of the rotatable positioning sucker after pressing the sucker cover downwards.

Wherein the reference numerals have the following meanings:

1. a suction cup main body; 11. a tray body; 111. a floppy disk; 1111. an adsorption chamber; 112. a framework; 1121. a first through groove; 1122. a third boss; 1123. a fourth boss; 11221. a counter bore; 12. pressing a plate; 121. a second through groove; 122. a flange edge; 1221. a third through groove; 123. a first boss; 1231. a first cavity; 1232. a second through hole; 124. a second boss; 1241. a second cavity; 2. a sucker cover; 21. a first through hole; 22. a first groove; 221. a card slot; 23. a second groove; 24. a U-shaped clamping groove; 241. erecting ribs; 3. a screw; 31. concave points; 32. salient points; 4. a cover plate; 41. and (5) buckling.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1-11, the utility model provides a rotatable positioning sucker, including the sucking disc main part 1 that is used for adsorbing the wall and cup joint on sucking disc main part 1 and be used for articulating the sucking disc cover 2 of article, this sucking disc cover 2 can rotate around sucking disc main part 1, and realizes the location through the groove block joint structure between this sucking disc cover 2 and the sucking disc main part 1.

Referring to fig. 1 to 3, the suction cup body 1 includes a tray body 11, the tray body 11 includes a flexible tray 111 and a frame 112 disposed in the flexible tray 111, the flexible tray 111 is recessed in the middle to form a suction chamber 1111; the frame 112 is an elastic frame body and has a circular horn shape, and a plurality of first through grooves 1121 are uniformly distributed on the surface thereof, so that the frame 112 is easy to deform and flatly attach to the surface of a wall after being pressed.

Therefore, when the tray body 11 is pressed and the adsorption cavity 1111 is attached to the wall, the framework 112 in the tray body 11 is in a deformation state; when the external force is removed, the frame 112 restores its original shape and pulls the center of the flexible plate 111 upward, so that the suction chamber 1111 is vacuumed and sucks the wall.

In the present embodiment, the first through grooves 1121 are uniformly arranged along the circumferential direction of the surface and the edge of the framework 112. The flexible disk 111 is made of a soft material; the frame 112 is integrally injection molded with the flexible disk 111.

In addition, the framework 112 is provided with a third boss 1122 and a fourth boss 1123 with gradually increasing outer diameters from top to bottom along the central axis direction; the third boss 1122 is provided with a counterbore 11221 in the center for connection with a screw 3.

Referring to fig. 4-5, the suction cup main body 1 further includes a pressing plate 12 sleeved on the tray body 11, the pressing plate 12 is an elastic plate body and is shaped like a semicircular horn, and a plurality of second through grooves 121 are uniformly distributed on the surface of the pressing plate 12, so that the pressing plate 12 is easy to deform after being pressed; the edge of the pressing plate 12 is further provided with a flange 122, and a plurality of third through grooves 1221 are uniformly distributed on the flange 122, so that the pressing plate 12 is easy to tilt after being pressed.

Therefore, when the pressing plate 12 is pressed and the adsorption cavity 1111 in the tray body 11 is driven to be attached to the wall, the pressing plate 12 is in a deformation state at the moment; when the external force is removed, the pressing plate 12 recovers the original shape and pulls the flexible disk 111 to move upwards, so that the adsorption cavity 1111 is in a vacuum state and adsorbs the wall, meanwhile, the flange edge 122 is abutted against the edge of the flexible disk 111 and drives the edge of the flexible disk 111 to adhere to the wall, and the flexible disk 111 can firmly adhere to the wall and form strong permanent suction force.

In the present embodiment, the second through grooves 121 and the third through grooves 1221 are uniformly arranged in the circumferential direction.

In addition, the pressing plate 12 is sequentially provided with a first boss 123 and a second boss 124, the outer diameters of which are gradually increased, from top to bottom along the central axis direction; a first concave cavity 1231 is formed in the first boss 123, and a second concave cavity 1241 is formed in the second boss 124; the first concave cavity 1231 and the second concave cavity 1241 are both disposed along the central axis direction and communicate with each other, and the inner diameter of the second concave cavity 1241 is larger than the inner diameter of the first concave cavity 1231. In addition, a second through hole 1232 penetrating the bottom of the pressing plate 12 is further formed in the center of the first boss 123.

Referring to fig. 6-7, the suction cup cover 2 includes a hemispherical main body and an extending arm connected to the main body, and a U-shaped slot 24 is formed at the end of the extending arm for clamping a hook or other objects. The back of the U-shaped slot 24 is provided with a vertical rib 241 to enhance the supporting strength of the U-shaped slot 24. The center of the main body is provided with a first through hole 21, and the inner diameter of the first through hole 21 is between the outer diameter of the first boss 123 and the outer diameter of the second boss 124. The center of the main body is provided with a first groove 22 and a second groove 23 which are communicated with the first through hole 21 along the axial direction of the first through hole 21, the first groove 22 and the second groove 23 are respectively positioned above and below the first through hole 21, and the inner diameters of the first groove 22 and the second groove 23 are both larger than the inner diameter of the first through hole 21.

Referring to fig. 8-10, in the suction cup, the suction cup cover 2 is sleeved on the pressing plate 12, and the pressing plate 12 is sleeved on the tray body 11. When the pressing plate 12 is sleeved on the tray body 11, the third boss 1122 of the tray body 11 can extend into the first cavity 1231 of the pressing plate 12, and the top surface of the third boss 1122 is in contact with the top surface of the first cavity 1231; the second through hole 1232 of the first boss 123 and the counter bore 11221 of the third boss 1122 are located in the same axial direction and are communicated with each other; the fourth boss 1123 of the tray body 11 extends into the second cavity 1241 of the pressing plate 12, and the top surface of the fourth boss 1123 abuts against the top surface of the second cavity 1241. When the sucker cover 2 is sleeved on the pressing plate 12, the first boss 123 of the pressing plate 12 sequentially penetrates through the second groove 23 and the first through hole 21 of the sucker cover 2, and the top surface of the second boss 124 of the pressing plate 12 is abutted to the top surface of the second groove 23.

In addition, the sucker also comprises a screw 3, and the outer diameter of the head of the screw 3 is larger than the inner diameter of the first through hole 21. When the sucker cover 2 is sleeved on the pressing plate 12, the screw 3 sequentially passes through the first groove 22 of the sucker cover 2, the first through hole 21 of the sucker cover 2 and the second through hole 1232 of the pressing plate 12 and is in threaded connection with the counter bore 11221 on the plate body 11, and the pressing plate 12 is clamped by the screw 3 and the framework 112 and is fixedly connected into a whole. Meanwhile, the movement of the suction cup cover 2 along the axial direction of the screw 3 is limited between the head of the screw 3 and the second boss 124 of the pressing plate 12, and the suction cup cover 2 can rotate around the first boss 123 of the pressing plate 12.

Referring to fig. 8 and 10, the suction cup further includes a cover plate 4, a buckle 41 is disposed on the cover plate 4, and a locking groove 221 engaged with the buckle 41 is disposed in the first groove 22 of the suction cup cover 2. Therefore, after the buckle 41 on the cover plate 4 is buckled with the clamping groove 221 of the first groove 22, the screw 3 can be shielded, so as to improve the overall aesthetic property of the sucker.

Referring to fig. 4 and 6, the suction cup cover 2 and the suction cup main body 1 are positioned by a groove block clamping structure. Specifically, the groove block clamping structure is a concave point 31 arranged in the second groove 23 of the suction disc cover 2 and a convex point 32 arranged on the second boss 124 of the pressure plate 12 and clamped and matched with the concave point 31; the convex point 32 is one, and the concave points 31 are plural and uniformly arranged along the circumferential direction of the second groove 23.

In the present embodiment, the concave points 31 are hemispherical grooves, and the convex points 32 are hemispherical bumps. Of course, in other embodiments, the concave points 31 and the convex points 32 may have other shapes, and are not limited herein.

In addition, it should be noted that, in other embodiments, the slot block clamping structure may also be a protruding point 32 disposed in the second groove 23 of the suction cup cover 2 and a concave point 31 disposed on the second boss 124 of the pressure plate 12 and in clamping fit with the protruding point 32; the number of the concave points 31 is one, and the number of the convex points 32 is plural and is uniformly arranged along the circumferential direction of the second groove 23.

From this, through set up groove block joint structure between sucking disc cover 2 and sucking disc main part 1, can realize the relative fixation between the two, avoid taking place relative motion between sucking disc cover 2 and the sucking disc main part 1, guarantee good adsorption effect. In addition, there are a plurality of concave points 31 or convex points 32 in this groove block joint structure, and all evenly arrange along the circumferencial direction to be convenient for adjust the angle between sucking disc cover 2 and sucking disc main part 1, strengthen its flexibility greatly.

The utility model discloses an under the installation of sucking disc:

referring to fig. 11, when the suction cup is installed, the plate body 11 is opposite to the wall, the suction cup cover 2 is pressed to drive the suction cavity 1111 of the plate body 11 to be close to the wall, air in the suction cavity 1111 is exhausted, and the pressing plate 12 is deformed and concaved towards the concave direction of the plate body 11 under the stress; when the external force is removed, the pressing plate 12 recovers the original shape and drives the center of the flexible disk 111 to move upwards, so that the adsorption cavity 1111 is in a vacuum state and adsorbs the wall, meanwhile, the flange edge 122 on the pressing plate 12 is abutted against the edge of the flexible disk 111, and drives the edge of the flexible disk 111 to be tightly attached to the wall, so that the flexible disk 111 is tightly adsorbed on the wall and is not easy to fall off.

the first suction cup cover is connected with the suction cup main body 1 through the groove block clamping structure, relative fixation between the first suction cup cover and the suction cup main body 1 can be achieved, relative movement between the suction cup cover 2 and the suction cup main body 1 is avoided, and a good adsorption effect is guaranteed.

The concave points 31 or the convex points 32 in the groove block clamping structure are multiple and are uniformly arranged along the circumferential direction, so that the angle between the sucker cover 2 and the sucker main body 1 can be conveniently adjusted, and the flexibility of the sucker main body is greatly enhanced.

And (III) the flexible disk 111 can be driven to move upwards through the deformation of the framework 112, so that the adsorption cavity 1111 is in a vacuum state and is adsorbed on the wall.

And (IV) the flexible disk 111 can be further driven to move upwards through the deformation of the pressing plate 12, so that the adsorption cavity 1111 is in a vacuum state and is adsorbed on the wall. Meanwhile, the flange edge 122 on the pressing plate 12 drives the edge of the flexible disk 111 to be tightly attached to the wall, so that the flexible disk 111 can be firmly attached to the wall, and strong permanent suction force is formed.

(V) after the screw 3 is screwed with the sucker main body 1, the moving range of the sucker cover 2 is limited between the screw 3 and the sucker main body 1, and the sucker cover 2 can rotate around the sucker main body 1. In addition, the sucker is simple in overall structure, convenient to install and detach, reusable and good in user experience.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.

Claims

1. The utility model provides a rotatable positioning sucking disc, its characterized in that, including be used for adsorbing sucking disc main part (1) of wall and cup joint be in on sucking disc main part (1) and be used for articulating sucking disc cover (2) of article, wherein:

the sucker cover (2) can wind the sucker main body (1) to rotate, and the sucker cover (2) and the sucker main body (1) are positioned through a groove block clamping structure.

2. The rotatable positioning sucker according to claim 1, wherein the groove block clamping structure is a concave point (31) arranged on the sucker cover (2) and a convex point (32) arranged on the sucker body (1) and clamped with the concave point (31); the concave points (31) or the convex points (32) are multiple and are uniformly arranged along the circumferential direction;

or the groove block clamping structure comprises a salient point (32) arranged on the sucker cover (2) and a concave point (31) which is arranged on the sucker main body (1) and clamped with the salient point (32); the concave points (31) or the convex points (32) are multiple and are uniformly arranged along the circumferential direction.

3. A rotatably positionable suction cup according to claim 2, wherein the suction cup body (1) comprises a cup body (11), the cup body (11) comprising a floppy disk (111) and a skeleton (112) disposed within the floppy disk (111), the floppy disk (111) being recessed in the middle to form a suction cavity (1111); a plurality of first through grooves (1121) for pressing deformation are uniformly distributed on the framework (112).

4. The rotatable positioning sucker according to claim 3, wherein the sucker body (1) further comprises a pressing plate (12) sleeved on the sucker body (11), and a plurality of second through grooves (121) for pressing deformation are uniformly distributed on the pressing plate (12); the clamp plate (12) border still is equipped with flange limit (122), the equipartition has a plurality of third logical grooves (1221) that are used for pressing the back perk on flange limit (122).

5. A rotationally positionable suction cup according to claim 4, wherein the pressure plate (12) is provided with a first boss (123) and a second boss (124) having gradually increasing outer diameters in sequence from top to bottom along the same axial direction; a first concave cavity (1231) is arranged in the first boss (123), and a second concave cavity (1241) is arranged in the second boss (124); the first concave cavity (1231) and the second concave cavity (1241) are arranged along the same axial direction and are communicated with each other, and the inner diameter of the second concave cavity (1241) is larger than that of the first concave cavity (1231);

the framework (112) is sequentially provided with a third boss (1122) and a fourth boss (1123) with gradually increasing outer diameters from top to bottom along the same axial direction;

when the pressing plate (12) is sleeved on the tray body (11), the third boss (1122) extends into the first cavity (1231), and the top surface of the third boss (1122) is abutted to the top surface of the first cavity (1231); the fourth boss (1123) extends into the second cavity (1241), and the top surface of the fourth boss (1123) is in contact with the top surface of the second cavity (1241).

6. A rotatably positionable suction cup according to claim 5, wherein the cup cover (2) is provided with a first through hole (21), the first through hole (21) having an inner diameter in-between the outer diameter of the first boss (123) and the outer diameter of the second boss (124);

when the sucker cover (2) is sleeved on the sucker main body (1), the first boss (123) penetrates through the first through hole (21), and the top surface of the second boss (124) is abutted to the bottom surface of the first through hole (21).

7. The rotatable positioning suction cup as claimed in claim 6, further comprising a second through hole (1232) arranged on the first boss (123) of the pressure plate (12), a counter bore (11221) arranged on the third boss (1122) of the framework (112), and a screw (3) matched with the counter bore (11221), wherein the second through hole (1232) and the counter bore (11221) are arranged along the same axial direction and are communicated with each other;

the outer diameter of the head of the screw (3) is larger than the inner diameter of the first through hole (21);

when the sucker cover (2) is sleeved on the sucker main body (1), the screw (3) sequentially penetrates through a first through hole (21) of the sucker cover (2) and a second through hole (1232) of the pressing plate (12) and is in threaded connection with a counter bore (11221) in the sucker body (11), and the pressing plate (12) is clamped by the screw (3) and the framework (112); the moving stroke of the sucker cover (2) along the axial direction of the screw (3) is limited between the head of the screw (3) and a second boss (124) of the pressing plate (12), and the sucker cover (2) can rotate around a first boss (123) of the pressing plate (12).

8. A rotatably positionable suction cup according to claim 7, further comprising a cover plate (4), said cover plate (4) being removably attached to said suction cup housing (2) and shielding said screw (3).

9. A rotationally positionable suction cup according to claim 8, characterized in that the cup cover (2) is provided with a first groove (22) in communication with the first through hole (21) and above the first through hole (21) in the direction of the axis of the first through hole (21), the first groove (22) having an inner diameter larger than the inner diameter of the first through hole (21); the cover plate (4) is provided with a buckle (41), and a clamping groove (221) which is matched with the buckle (41) in a clamping mode is arranged in the first groove (22).

10. A rotatably positionable suction cup according to claim 9, wherein the cup cover (2) is provided with a second groove (23) communicating with the first through hole (21) and located below the first through hole (21) in the axial direction of the first through hole (21), the second groove (23) having an inner diameter larger than the inner diameter of the first through hole (21);

the concave points (31) are arranged in the second grooves (23), and the convex points (32) are arranged on the second bosses (124) of the pressing plate (12); or the convex points (32) are arranged in the second groove (23), and the concave points (31) are arranged on the second boss (124) of the pressing plate (12).