Vacuum chuck with high safety

Abstract

The utility model discloses a vacuum chuck with high safety, which comprises a chuck, the surface of the chuck is fixedly communicated with a connecting pipe, the upper end of the connecting pipe is fixedly communicated with an air inlet structure, the side wall of the connecting pipe is fixedly communicated with a first branch pipe, and the first branch pipe is matched with a valve body structure and a second branch pipe for use. When the vacuum pump at the outer side end works, the valve body can be effectively drawn and opened, at the moment, air in the first branch pipe and the second branch pipe can be pumped out, air on the inner wall of the connecting pipe is also pumped out, the air pressure in the system is reduced, the vacuum degree is increased, and a workpiece at the outer side end of the suction cup can be firmly adsorbed; at the moment, under the action of the valve body structure, the pipeline can be closed quickly, air cannot enter the pipeline, the vacuum degree is prevented from being reduced, workpieces are prevented from falling off, the safety of equipment in response to emergency situations during use can be guaranteed, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum suction cups, in particular to a vacuum suction cup with high safety. Background Art

[0002] A vacuum suction cup is a device that uses the principle of air pressure to generate suction, usually made of rubber, silicone or other elastic materials. They are usually used to adsorb and grasp objects on smooth surfaces, such as glass, metal, plastic, etc. The working principle of a vacuum suction cup is to use the air pressure difference to create a vacuum between the suction cup and the adsorbed object, thereby generating suction between the adsorbed object and the suction cup. When the suction cup comes into contact with the adsorbed object, the air is drawn out of the sealed cavity inside the suction cup to form a low-pressure area, thereby generating suction to firmly adsorb the adsorbed object on the suction cup. This design allows the vacuum suction cup to firmly grasp and carry various objects without the need for a fixture or fixture imprint. Since the vacuum pump cannot be shut down when the suction cup is working, it is necessary to effectively prevent air from entering the pipeline and affecting use, thereby ensuring the safety of the equipment. Utility Model Content

[0003] The purpose of the utility model is to provide a vacuum suction cup with high safety to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vacuum suction cup with high safety, comprising a suction cup, the surface of the suction cup is fixedly connected to a connecting pipe, the upper end of the connecting pipe is fixedly connected to an air intake structure, the side wall of the connecting pipe is fixedly connected to a first branch pipe, the first branch pipe is connected to a second branch pipe through a valve body structure, and the outer end of the second branch pipe is connected to a vacuum pump.

[0005] Preferably, the air intake structure includes a solenoid valve and an air intake pipe, and the upper end of the connecting pipe is connected to the air intake pipe via the solenoid valve.

[0006] Preferably, the valve body structure includes a hollow cylinder, which is connected to the first branch pipe, and the other end of the hollow cylinder is connected to the second branch pipe. The inner wall of the hollow cylinder is fixedly equipped with a support ring, and sliding rods are passed through the upper and lower sides of the support ring. The side ends of the two sliding rods are fixedly equipped with blocking plates, and the blocking plates are sealingly inserted into the inner wall of the branch ring. The inner wall of the hollow cylinder is fixedly equipped with a support plate, and the support plate is connected to the blocking plate through a spring.

[0007] Preferably, a bypass structure is further included, wherein the bypass structure includes two bent pipes, the two bent pipes are respectively connected to the first branch pipe and the second branch pipe, and a manual valve is fixedly connected between the two bent pipes.

[0008] Compared with the prior art, the utility model has the following beneficial effects: the workpiece is adsorbed by the suction cup, which is convenient for the displacement and processing of the workpiece; the air intake structure is connected through a connecting pipe, and the air intake structure makes it convenient to quickly remove the workpiece after the work is completed, thereby improving work efficiency; the first branch pipe is used in conjunction with the valve body structure and the second branch pipe, and when the vacuum pump at the outer end is working, the valve body can be effectively pulled open, at which time the air inside the first branch pipe and the second branch pipe can be extracted, and the air on the inner wall of the connecting pipe can also be extracted, the internal air pressure of the system is reduced, the vacuum degree is increased, and the workpiece at the outer end of the suction cup will be firmly adsorbed; at the same time, when the vacuum pump is accidentally turned off, the valve body structure will quickly close the pipeline, and air cannot enter the pipeline, thereby avoiding a decrease in the vacuum degree and the workpiece falling, thereby ensuring the safety of the equipment in dealing with emergencies during use, and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0010] Figure 2 It is a plan view of the utility model;

[0011] Figure 3 for Figure 2 A schematic diagram of the enlarged structure in FIG.

[0012] In the figure: 1-suction cup, 2-connecting pipe, 3-intake structure, 31-solenoid valve, 32-intake pipe, 4-first branch pipe, 5-valve body structure, 51-branch ring, 52-blocking plate, 53-sliding rod, 54-hollow cylinder, 55-spring, 56-branch plate, 6-second branch pipe, 7-bypass structure, 71-elbow pipe, 72-manual valve. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] See also Figure 1-3 The utility model provides a vacuum suction cup with high safety, including a suction cup 1, a connecting pipe 2 is fixedly connected to the surface of the suction cup 1, an air intake structure 3 is fixedly connected to the upper end of the connecting pipe 2, a first branch pipe 4 is fixedly connected to the side wall of the connecting pipe 2, the first branch pipe 4 is connected to the second branch pipe 6 through a valve body structure 5, and the outer end of the second branch pipe 6 is connected to a vacuum pump.

[0015] The workpiece is adsorbed by the suction cup 1, which is convenient for workpiece displacement and processing. The air intake structure 3 is connected through the connecting pipe 2. Through the function of the air intake structure 3, it is convenient to quickly remove the workpiece after the work is completed, thereby improving work efficiency. Through the coordinated use of the first branch pipe 4, the valve body structure 5 and the second branch pipe 6, when the vacuum pump at the outer end is working, the valve body structure 5 can be effectively pulled open. At this time, the air inside the first branch pipe 4 and the second branch pipe 6 can be extracted, and the air on the inner wall of the connecting pipe 2 can also be extracted. The internal air pressure of the system is reduced, the vacuum degree is increased, and the workpiece at the outer end of the suction cup 1 will be firmly adsorbed. At the same time, when the vacuum pump is accidentally closed, the valve body structure 5 will quickly close the pipeline, and air cannot enter the pipeline, thereby avoiding a decrease in vacuum and the workpiece falling. This can ensure the safety of the equipment in dealing with emergencies during use, and has strong practicality.

[0016] The air intake structure 3 includes a solenoid valve 31 and an air intake pipe 32 , and the upper end of the connecting pipe 2 is connected to the air intake pipe 32 through the solenoid valve 31 .

[0017] When the workpiece needs to be removed, the solenoid valve 31 is opened, and air enters the connecting pipe 2 through the air inlet pipe 32, and enters the suction cup 1 through the connecting pipe 2. At this time, the vacuum degree drops rapidly, and the workpiece is easy to fall off.

[0018] The valve body structure 5 includes a hollow cylinder 54, which is connected to the first branch pipe 54, and the other end of the hollow cylinder 54 is connected to the second branch pipe 6. The inner wall of the hollow cylinder 54 is fixedly equipped with a support ring 51, and sliding rods 53 are passed through the upper and lower sides of the support ring 51. The side ends of the two sliding rods 53 are fixedly equipped with blocking plates 52, and the blocking plates 52 are sealingly inserted into the inner wall of the support ring 51. The inner wall of the hollow cylinder 54 is fixedly equipped with a support plate 56, and the support plate 56 is connected to the blocking plate 52 through a spring 55.

[0019] When the vacuum pump is turned on, a certain suction force will be provided, and the suction force will enter the hollow cylinder 54 through the second branch pipe 6. At this time, the blocking plate 52 will be pulled away from the inner wall of the support ring 51, and the spring 55 will be squeezed to deform it and accumulate force. When the blocking plate 52 moves, it will drive the two sliding rods 53 to fit the inner wall of the support ring 51 and move along a fixed trajectory, thereby limiting the blocking plate 52 from maintaining a fixed trajectory displacement. At this time, the first branch pipe 4 and the second branch pipe 6 form a passage, which is convenient for vacuuming.

[0020] The bypass structure 7 also includes two curved pipes 71 . The two curved pipes 71 are respectively connected to the first branch pipe 4 and the second branch pipe 6 . A manual valve 72 is fixedly connected between the two curved pipes 71 .

[0021] When the valve body structure 5 is accidentally closed, the manual valve 72 can be opened manually to connect the two elbows 71, thereby connecting the first branch pipe 4 and the second branch pipe 6. This can be used as a pre-selected solution to ensure the use effect of the equipment.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum suction cup with high safety, characterized by: The invention comprises a suction cup (1), the surface of the suction cup (1) is fixedly connected to a connecting pipe (2), the upper end of the connecting pipe (2) is fixedly connected to an air intake structure (3), the side wall of the connecting pipe (2) is fixedly connected to a first branch pipe (4), the first branch pipe (4) is connected to a second branch pipe (6) via a valve body structure (5), and the outer end of the second branch pipe (6) is connected to a vacuum pump.

2. A vacuum suction cup with high safety according to claim 1, characterized in that: The air intake structure (3) comprises an electromagnetic valve (31) and an air intake pipe (32), and the upper end of the connecting pipe (2) is connected to the air intake pipe (32) via the electromagnetic valve (31).

3. A vacuum suction cup with high safety according to claim 1, characterized in that: The valve body structure (5) comprises a hollow cylinder (54), wherein the hollow cylinder (54) is connected to the first branch pipe (4), and the other end of the hollow cylinder (54) is connected to the second branch pipe (6). The inner wall of the hollow cylinder (54) is fixedly equipped with a support ring (51), and the upper and lower sides of the support ring (51) are penetrated by sliding rods (53), and the side ends of the two sliding rods (53) are fixedly equipped with blocking plates (52), and the blocking plates (52) are sealingly inserted into the inner wall of the support ring (51). The inner wall of the hollow cylinder (54) is fixedly equipped with a support plate (56), and the support plate (56) is connected to the blocking plate (52) through a spring (55).

4. A vacuum suction cup with high safety according to claim 1, characterized in that: The bypass structure (7) further comprises two curved pipes (71), wherein the two curved pipes (71) are respectively connected to the first branch pipe (4) and the second branch pipe (6), and a manual valve (72) is fixedly connected between the two curved pipes (71).

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