TWI731532B - Suction cup - Google Patents

Abstract

A suction cup includes a main body, a pump and a movable handle. The main body includes an adsorption plane. The main body defines an axial direction which is perpendicular to the adsorption plane. The pump connected to an end of the adsorption plane which is away from the main body. The pump includes a first passage. An acute angle is defines by the extending direction of the first passage and the axial direction. The movable handle is slidably assembled in the first passage and has a piston.

Description

Sucker

The present invention relates to a sucker.

Press, some smooth objects (such as glass, smooth slate, etc.) have smooth surfaces and are fragile and fragile. In addition, they are bulky. Therefore, they need to be moved with inconvenient walking posture when carrying them by hand. Therefore, someone invented the suction cup to suck smooth objects. When holding the vertical grip of the suction cup, the smooth objects can be moved together to improve the work effect. The suction cup disclosed by TWM288662 belongs to this type.

However, when the installation surface of a few objects is oblique to the horizontal plane (such as the windshield of a car), when the user holds the grip of the suction cup, the lower arm needs to be tilted downward and the wrist needs to be bent downward, so the lower arm In order to avoid bending of the wrist, the lower arm must be parallel to the installation surface. Due to the low height of the car, the user needs to squat down for installation, which will cause excessive force on the lower limbs. Therefore, when the conventional suction cup is applied when the installation surface is oblique to the horizontal plane, there are still many inconvenience problems, and there are shortcomings that need to be improved urgently.

Therefore, it is necessary to provide a novel and progressive suction cup to solve the above-mentioned problems.

The main purpose of the present invention is to provide a suction cup, which can be effectively applied to the working environment where the installation surface is oblique to the horizontal plane, which can avoid causing excessive load on the upper or lower limbs of the user, thereby effectively improving work efficiency and avoiding occupational injuries .

To achieve the above objective, the present invention provides a sucker, which includes a sucker body, a pump, and a movable handle. The suction cup body includes a suction surface, and the suction cup body defines an axial direction perpendicular to the suction surface. The pump is connected to an end of the suction cup body away from the suction surface. The pump includes a first channel, and an acute angle is formed between the extending direction of the first channel and the axial direction. The movable handle is slidably arranged in the first channel and is provided with a piston.

The following examples are only used to illustrate the possible implementation aspects of the present invention, but they are not intended to limit the scope of protection of the present invention, and are described first.

Please refer to FIGS. 1 to 10, which show a preferred embodiment of the present invention. The suction cup of the present invention includes a suction cup body 1, a pump 2 and a movable handle 3.

The suction cup body 1 includes a suction surface 11 for sucking an object (such as glass), and the suction cup body 1 defines an axial direction 12 perpendicular to the suction surface 11.

The pump 2 is connected to an end of the suction cup body 1 away from the suction surface 11. The pump 2 includes a first channel 28, and an acute angle Θ is formed between the extending direction of the first channel 28 and the axial direction 12 (Figure 3 Shown).

The movable handle 3 is slidably disposed in the first passage 28, and is provided with a piston 31, by which the air between the suction surface 11 and the object can be sucked out to form a negative pressure, and the object can be adsorbed.

Preferably, the angle of the acute angle θ is between 10 and 30 degrees. In this embodiment, the angle of the acute angle θ is 20 degrees. In detail, in actual use (as shown in Figures 9 and 10), in this embodiment, the object is the windshield of a car. When the suction cup is adsorbed on the windshield, the first channel 28 is The extension direction and the axial direction 12 form the acute angle Θ (that is, the pump 2 and the axial direction 12 form the acute angle Θ). Therefore, when the user holds the pump 2, it can still be lowered without squatting down. The arm is parallel to the horizontal plane and the wrist does not need to be parallel to the lower arm. The user corresponds to the glass frame of the car when the user is standing. Therefore, the present invention is extremely convenient when installing or removing the windshield, which can effectively improve the work efficiency and avoid causing The user's wrist or lower arm is injured and an occupational accident occurs.

Specifically, a bending section 21 is connected between the suction cup body 1 and the pump 2 so that the acute angle θ can be formed between the pump 2 and the axial direction 12.

Furthermore, the pump 2 includes an outer tube 22 and an inner tube 23 that are fixed to each other. The outer tube 22 is connected to the bending section 21, and the movable handle 3 is slidably disposed in the inner tube 23. The suction cup body 1 includes a circular plate 16 and a flexible circular disk 17, the suction surface 11 is provided on a side of the flexible circular disk 17 away from the circular plate 16, the circular plate 16, the bending section 21 and The outer tube 22 is integrally formed, and in other embodiments, it can also be referred to as welding, assembling and other connection methods.

Preferably, the inner tube 23 is provided with a cover portion 24 facing one end of the suction cup body 1, the cover portion 24 is penetrated with a through hole 241, and the suction cup body 1 is penetrated with a second channel connecting two opposite sides of the suction cup body 1 13. The through hole 241 is connected to the second channel 13 to suck the gas in the suction cup body 1 into the inner tube 23 through the through hole 241 and the second channel 13. In this embodiment, the cover 24 is screwed to the inner tube 23 to facilitate disassembly and assembly and has a better sealing effect.

In this embodiment, a suction nozzle 242 protrudes from the edge of the through hole 241, and a connecting tube 14 is sleeved on the suction nozzle 242 and connected to the second channel 13. Preferably, the connecting tube 14 is a flexible tube body. Since the extending direction of the first channel 28 forms an acute angle θ with the axial direction 12, the suction nozzle 242 is not oriented corresponding to the second channel 13. The flexibility of the tube 14 enables the connecting tube 14 to be smoothly bent and connected to the inside of the suction nozzle 242 and the second channel 13 and has a lower manufacturing cost.

Wherein, the cover part 24 is further provided with a ring 25 and a flap 26 on a surface away from the suction cup body 1, the flap 26 is clamped between the ring 25 and the cover 24, and the flap 26 passes through There are a plurality of slits 261 arranged in a ring shape. The perforation 241 is located at the center of the slits 261. When the piston 31 moves away from the suction cup body 1, the flap 26 is located in the slits 261. Part of it will be lifted up to allow gas to flow from the perforation 241 toward the inner tube 23 (as shown in FIG. 7). When the piston 31 moves toward the suction cup body 1, the flap 26 is located in the slits 261 The inner part blocks the perforation 241 so that the gas cannot pass through.

In this embodiment, an elastic member 15 is further included. The elastic member 15 elastically abuts between the cover portion 24 and the piston 31, so that the piston 31 and the movable handle 3 have a tendency to move away from the suction cup body 1 , In order to facilitate repeated pressing of the movable handle 3 to pump air.

The pump 2 further includes a sleeve 27, the sleeve 27 is inserted into the inner tube 23 non-movably, the movable handle 3 is slidably inserted through the sleeve 27, and the sleeve 27 can block the piston 31 to make the movement The handle 3 will be separated from the pump 2 and the sleeve 27 can prevent the movable handle 3 and the inner tube 23 from being worn away.

In summary, since the suction cup of the present invention forms the acute angle with the axial direction, when the user holds the pump, without squatting, the lower arm can still be parallel to the horizontal plane and the wrist does not need to be in contact with the lower arm. The arms are parallel, which can effectively improve work efficiency and avoid injury to the user's wrist or lower arm and cause occupational accidents.

1: Suction cup body 2: Pump 3: movable handle 11: Adsorption surface 12: Axial 13: Second channel 14: connecting pipe 15: Elastic parts 16: round plate 17: Flexible disc 21: bending section 22: Outer tube 23: inner tube 24: Lid 25: Ring 26: flap 27: Kit 28: First channel 241: Perforation 242: Nozzle 261: cut groove 31: Piston Θ: acute angle

Figure 1 is a perspective view of a preferred embodiment of the present invention. Figure 2 is an exploded view of a preferred embodiment of the present invention. Figure 3 is a side cross-sectional view of a preferred embodiment of the present invention. 4 and 5 are operational cross-sectional views of a preferred embodiment of the present invention. Fig. 6 is a partial enlarged view of Fig. 4. Fig. 7 is a partial enlarged view of Fig. 5. Figure 8 is another perspective view of a preferred embodiment of the present invention. FIG. 9 and FIG. 10 are schematic diagrams of the use state of a preferred embodiment of the present invention.

1: Suction cup body

2: Pump

3: movable handle

Claims (8)

A suction cup includes: a suction cup body, including a suction surface, the suction cup body defines an axial direction perpendicular to the suction surface; a pump connected to an end of the suction cup body away from the suction surface, the pump includes a first channel, An acute angle is formed between the extending direction of the first channel and the axial direction; a movable handle is slidably arranged in the first channel and is provided with a piston; wherein a bending section is connected between the suction cup body and the pump ; Wherein, the pump includes a fixed outer tube and an inner tube, the outer tube is connected to the bending section, the movable handle is slidably arranged in the inner tube. The suction cup according to claim 1, wherein the inner tube is provided with a cover portion facing one end of the suction cup body, the cover portion is penetrated with a perforation, and the suction cup body is penetrated with a second channel connecting two opposite sides of the suction cup body, The through hole is connected to the second channel. The suction cup according to claim 2, wherein the edge of the perforated hole is protrudingly provided with a suction nozzle, and a connecting tube is sleeved on the suction nozzle and connected to the second channel. The suction cup according to claim 2, wherein the cover part is further provided with a ring and a flap on a surface away from the suction cup body, the flap is clamped between the ring and the cover, and the flap penetrates There are a plurality of slits arranged in a ring shape, and the perforation is located at the center of the slits. The suction cup according to claim 2, which further includes an elastic member that elastically abuts between the cover portion and the piston, so that the piston and the movable handle have a tendency to move away from the suction cup body. The suction cup according to claim 1, wherein the pump further includes a kit, the kit is non-movably inserted into the inner tube, and the movable handle slidably penetrates the kit. The suction cup according to any one of claims 1 to 6, wherein the angle of the acute angle is between 10 and 30 degrees. The suction cup according to claim 3, wherein a ring and a flap are further provided on a side of the cover part away from the suction cup body, the flap is clamped between the ring and the cover, and the flap penetrates There are a plurality of section grooves arranged in a ring shape, and the perforation is located at the center of the section grooves; and an elastic member is also included. The elastic member elastically abuts between the cover portion and the piston, so that the piston and the movable handle It has a tendency to move away from the suction cup body; the pump further includes a kit, the kit is non-movably inserted into the inner tube, and the movable handle slidably penetrates the kit; the acute angle is 20 degrees; the The connecting pipe is a flexible pipe body; the suction cup body includes a circular plate and a flexible circular disk, the suction surface is arranged on a side of the flexible circular disk away from the circular plate, the circular plate, the bending section and The outer tube is integrally formed; the cover is screwed to the inner tube.

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