US 12,332,150 B1
Ventilation test device and method for plastic parts of coffee machine
Pengliang Guo, Jiangsu (CN); Xin He, Jiangsu (CN); Lingquan Xiang, Jiangsu (CN); Dongqi Wang, Jiangsu (CN); and Jianxin Hu, Jiangsu (CN)
Assigned to Jiangsu Vnuo Certification and Testing Co., Ltd., Suqian (CN)
Filed by Jiangsu Vnuo Certification and Testing Co., Ltd., Jiangsu (CN)
Filed on Mar. 11, 2025, as Appl. No. 19/076,965.
Claims priority of application No. 202410374617.3 (CN), filed on Mar. 29, 2024.
Int. Cl. G01M 99/00 (2011.01)
CPC G01M 99/005 (2013.01) 3 Claims
OG exemplary drawing
 
1. A ventilation test device for plastic parts of a coffee machine, comprising a device body, wherein a detection assembly is arranged at a center of a top of the device body, gas delivery pipes are equidistantly distributed on a top of the detection assembly, electric telescopic columns are arranged on left and right sides of the top of the device body, and a pressing plate is arranged on tops of telescopic ends of the electric telescopic columns; circular holes are formed in the pressing plate, telescopic rings are fixedly mounted at a bottom of the pressing plate, and the telescopic rings are located around peripheries of the circular holes; downstream devices for identifying ventilation types are arranged inside the gas delivery pipes;
each of the downstream devices comprises a filter plate, an electric telescopic rotating column, and an elliptical assembly, wherein an outer wall of the filter plate is fixedly mounted on an inner wall of the gas delivery pipe, a bottom of the electric telescopic rotating column is rotatably mounted at a center of a top of the filter plate, and a top arc surface of the elliptical assembly is hingedly connected to an outer wall surface of a telescopic end of the electric telescopic rotating column; the elliptical assembly is located directly below the corresponding circular hole of the pressing plate, and an anti-clogging device for preventing airflow obstruction is arranged below the filter plate;
the downstream device further comprises a twisted plate, an elastic ring, a transmission rod and a groove block, wherein a top of the twisted plate is fixedly mounted on a bottom arc surface of the elliptical assembly, inside of the elastic ring is slidably mounted on an outer wall of the electric telescopic rotating column, an outer wall of the elastic ring is fixedly connected to a bottom of the twisted plate, a bottom of the transmission rod is hingedly connected to a concave surface of the twisted plate, an arc surface of an outer wall of the groove block is hingedly connected to a top of the transmission rod, and a concave surface of an inner wall of the groove block is in contact with an outer wall of the telescopic end of the electric telescopic rotating column;
the anti-clogging device comprises an arc groove column, a connecting rod and a heating ring, wherein a top of the arc groove column penetrates through and is fixedly mounted at the bottom of the electric telescopic rotating column, a right side of the connecting rod is slidably mounted inside an arc groove of the arc groove column, an outer wall of the heating ring is slidably mounted on the inner wall of the corresponding gas delivery pipe, a concave surface of an inner wall of the heating ring is fixedly mounted on a left side of the connecting rod, and a crack detection device for detecting quality of the material is arranged above an outer wall of the gas delivery pipe;
the anti-clogging device further comprises fixed plates, conical blocks, telescopic bearing plates and arc-shaped sheets, wherein a top of each of the fixed plates is fixedly mounted at a bottom of the heating ring, a bottom of each of the conical blocks is fixedly mounted on a top of the corresponding fixed plate, a top of each of the conical blocks is directly opposite to a filter hole of the corresponding filter plate, a top of each of the telescopic bearing plates is fixedly mounted at a bottom of the corresponding fixed plate, and a top of each of the arc-shaped sheets is fixedly mounted at a bottom of a telescopic end of the corresponding telescopic bearing plate;
the crack detection device comprises a telescopic housing, an elastic arc plate and a purification capsule, wherein an inner wall of a bottom of the telescopic housing is fixedly mounted above the outer wall of the corresponding gas delivery pipe, a telescopic end of the telescopic housing is located on a motion trajectory of the pressing plate, the telescopic housing is designed to be transparent, and the telescopic housing is communicated with the gas delivery pipe; a back of the elastic arc plate is fixedly mounted between a front face of the telescopic housing and a front face of the telescopic end of the telescopic housing, and the purification capsule is fixedly mounted between the front face of the telescopic housing and a concave surface of the elastic arc plate; and
the crack detection device further comprises L-shaped pressing levers, spoiler plates, vibration blocks and angular blocks, wherein a left side of a top of each of the L-shaped pressing levers is fixedly mounted on a left side of an inner wall of the telescopic end of the telescopic housing, a left side of each of the spoiler plates is fixedly mounted on the left side of the inner wall of the telescopic housing, each of the spoiler plates is located on a motion trajectory of the corresponding L-shaped pressing lever, a bottom of each of the vibration blocks is fixedly mounted at a top edge of the corresponding spoiler plate, and a top of each of the angular blocks is fixedly mounted at a bottom of the corresponding spoiler plate.