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CN-122008104-A - Electric sucking disc

CN122008104ACN 122008104 ACN122008104 ACN 122008104ACN-122008104-A

Abstract

The invention relates to the technical field of electric tools, and provides an electric sucking disc which comprises a handle device, a base element and a sealing element, wherein the handle device is connected with one end face of the base element, an annular connecting structure is formed on the circumferential edge of the other end face, far away from the handle device, of the base element, and the connecting structure is connected with the sealing element. The first flange structure wraps the peripheral side surface of the base element and is matched with the clamping buckle to form dual radial and axial constraint, the threaded connection further strengthens the fixing reliability through the first threaded hole, radial deflection, warping and local debonding of the sealing element under the actions of instantaneous high pressure difference and repeated pressure pulsation are avoided, and the sealing joint surface is ensured to be always stable. The integral structural strength and rigidity of the base are improved, a stable installation foundation is provided for the connecting structure and the sealing element, the sealing gap is prevented from being generated due to stress deformation of the base in long-term continuous operation, and the stability of the sealing structure is guaranteed.

Inventors

  • FENG YUNHE

Assignees

  • 莱科(衢州市)科技有限公司

Dates

Publication Date
20260512
Application Date
20260310

Claims (10)

  1. 1. The electric sucking disc is characterized by comprising a handle device (1), a base element (2) and a sealing element (5), wherein one end face of the base element (2) is connected with the handle device (1), the other end face of the base element (2) is connected with the annular sealing element (5), a connecting structure (4) is arranged between the base element (2) and the sealing element (5), and the connecting structure (4) is detachably connected with the base element (2).
  2. 2. An electric suction cup according to claim 1, characterized in that the end circumferential edge of the connection structure (4) to the base element (2) is provided with an annular first flange structure (41), the first flange structure (41) being detachably connectable to the base element (2).
  3. 3. The electric suction cup according to claim 2, characterized in that the first flange structure (41) is capable of wrapping around the peripheral side of the base element (2) and is capable of being snapped with one end face of the base element (2) by means of at least one snap-in structure (43).
  4. 4. The electric suction cup according to claim 2, characterized in that the connection structure (4) is formed with at least one second flange structure (42) arranged at intervals, which second flange structure (42) can be embedded in the base element (2) to form a connection structure.
  5. 5. An electric suction cup according to claim 1, characterized in that the connection structure (4) and the base element (2) can be screwed through a first threaded hole (7) to form a limit structure.
  6. 6. An electric suction cup according to claim 1, characterized in that an elastic sealing gasket (3) is fixedly arranged between the connection structure (4) and the base element (2).
  7. 7. The electric sucking disc according to claim 1, characterized in that at least one protruding limiting structure (21) is formed on the end face of the base element (2) facing the sealing element (5), a protruding limiting part (44) is formed on the end face of the connecting structure (4) far away from the base element (2), and the sealing element (5) can be adhered or clamped between the side face of the protruding limiting structure (21) and the protruding limiting part (44).
  8. 8. An electric suction cup according to claim 1, characterized in that a base skeleton (6) is provided in the base element (2).
  9. 9. An electric suction cup according to claim 8, characterized in that the base skeleton (6) has a hardness greater than the base element (2).
  10. 10. An electric suction cup according to any one of claims 1-9, characterized in that the sealing element (5) is an elastic material.

Description

Electric sucking disc Technical Field The invention relates to the technical field of electric tools, in particular to an electric sucking disc. Background The electric sucking disc (Electric Vacuum Gripper) is a grabbing device which uses electric power to drive a vacuum system and realizes object absorption, transportation and fixation by means of negative pressure. The air in the sucker cavity is pumped out quickly by the built-in electric vacuum pump to form a stable negative pressure area, the sucker is tightly attached to the surface of an object by utilizing the atmospheric pressure difference, so that reliable adsorption force is generated, and the normal pressure is recovered after power-off/pressure relief, so that the release is completed. The gripping device is widely used for carrying, installing, lifting and fixing heavy objects such as glass, stone, ceramic tiles, metal plates, furniture, household appliances, curtain wall plates and the like, and is universal gripping equipment for decoration, building, manufacturing and logistics scenes. CN119878819a discloses a sealing structure element and an electric suction cup. The sealing structure element comprises an annular sealing structure, wherein two end faces of the annular sealing structure are communicated through a through hole, and a groove communicated with the through hole is formed in one end face. CN120363238a discloses a sucker sealing structure and an intelligent sucker, the sucker sealing structure comprises an annular sealing part, a first flange part is formed by protruding the peripheral edge of an outer ring of the annular sealing part to one side, a second flange part is formed on one side, with the same direction as the first flange part, of the peripheral edge of an inner ring of the annular sealing part, a plurality of through holes are formed on an annular surface between the first flange part and the second flange part, annular protruding lips are formed on the side, facing the first flange part, of the through holes, and a supporting part is nested inside the first flange part. The existing electric sucking disc is easy to frequently bear the pressure difference impact of sharp fluctuation in the long-term continuous working process. Under the working conditions of negative pressure establishment and release, load switching, abrupt change of working conditions and the like, the internal pressure can be changed drastically in a short time, and repeated pressure pulsation and instantaneous pressure difference peak values are formed. The unsteady stress environment can continuously act on the sealing assembly, so that the sealing assembly gradually generates displacement, deformation and even fatigue damage under the action of alternating stress, and further the problems of sealing element deflection, warping, abrasion, even cracking failure and the like occur. Once the sealing performance is reduced, faults such as insufficient suction force, air leakage, unstable adsorption and the like of the sucker are directly caused, the running stability and the operation precision of equipment are affected, the shutdown maintenance frequency and the maintenance cost are greatly increased, and the overall reliability and the service life of the equipment are seriously reduced. Disclosure of Invention Long-term practice shows that the sealing structure of the existing electric sucking disc mostly adopts a conventional elastic sealing piece and a simple fitting design, and has congenital defects in structural form, constraint mode and stress matching. Under the working condition of long-term continuous operation and rapid fluctuation of pressure difference, the sealing assembly lacks sufficient structural stability and limit protection. On the one hand, the sealing piece is attached by depending on elasticity of the sealing piece, a reliable radial limiting structure and a reliable axial limiting structure are not arranged, and under the actions of instantaneous high pressure difference and repeated pressure pulsation, radial deflection, warping and local debonding of the sealing edge are easy to occur, so that a stable sealing attaching surface cannot be always maintained. On the other hand, the sealing structure is not subjected to fatigue optimization aiming at alternating stress, the rigidity and thickness distribution of a sealing lip or a contact surface are uneven, stress concentration is easy to occur under frequent impact, and abrasion, plastic deformation and even cracking can be generated after long-term operation, so that sealing failure is caused. In view of the above, the invention provides an electric sucking disc, which comprises a handle device, a base element and a sealing element, wherein one end face of the base element is connected with the handle device, the other end face of the base element is connected with the annular sealing element, and a connecting structure is arranged between the base element and the seali