Patents Assigned to RIFENG ENTERPRISE GROUP CO., LTD.
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Patent number: 11920714Abstract: A sealing structure includes an inner pipe, an outer pipe, and a sealing ring, where the outer pipe is detachably sleeved on the inner pipe, a slot for inserting a pipe is formed between an inner wall of the outer pipe and an outer wall of the inner pipe, and the outer wall of the inner pipe is provided with a sealing groove for placing the sealing ring; the sealing ring includes a main body provided with a lip; the sealing groove includes a first sealing groove and a second sealing groove, the first sealing groove and the second sealing groove are stepped; the bottom of the lip fits the bottom of the first sealing groove; and the bottom of the main body fits the bottom of the second sealing groove.Type: GrantFiled: June 5, 2020Date of Patent: March 5, 2024Assignees: RIFENG ENTERPRISE (FOSHAN) CO., LTD., RIFENG ENTERPRISE GROUP CO., LTD., RiFeng New Material Co., Ltd.Inventors: Zhenbin Diao, Ximin Li, Xiyong Lin, Jiajia Cheng, Wenfeng Chen, Huijian Cao, Ali Chen
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Patent number: 11346479Abstract: A pipe fitting joint assembly including a guide sleeve, provided with a first concave-convex structure on the outer wall of one end thereof, a connecting body, provided with a second concave-convex structure on the inner walls of both ends thereof, and an inner gear ring provided with a third concave-convex structure on an inner ring thereof and a fourth concave-convex structure on an outer ring thereof. The inner gear ring is concentrically inserted into the connecting body. The fourth concave-convex structure and the second concave-convex structure are in interference fit. The guide sleeve is concentrically inserted into the inner ring gear of the connecting body. The first concave-convex structure and the fourth concave-convex structure are in clearance fit therebetween using a moving interference manner.Type: GrantFiled: December 29, 2018Date of Patent: May 31, 2022Assignees: RIFENG ENTERPRISE (FOSHAN) CO., LTD., RIFENG ENTERPRISE GROUP CO., LTD., RIFENG TECHNOLOGY CO., LTD.Inventors: Xiyong Lin, Jiajia Cheng, Zhenbin Diao, Xin Li, Huijian Cao, Wenfeng Chen, Jianbo Liao, Ximin Li, Ali Chen
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Publication number: 20200158274Abstract: A pipe fitting connecting method and a connecting structure, comprising the following steps of: providing an elastic sleeve (10) at the position of an end opening of a pipe material (20) in a sleeving manner, and clamping the pipe material by means of a clamping sleeve (01) of a push tool; fixing a connecting pipe body (30) to a clamping ring (02) of the push tool, the front end of an insertion end (310) of the connecting pipe body being a guiding-in section (312), the rear end of the insertion section of the connecting pipe body being an expansion section (314), the outer diameter of the guiding-in section being equal to the inner diameter of the pipe material, and a conical ring (316) with a small front end and a large rear end being provided on the periphery of the expansion section; and enabling the insertion end of the connecting pipe body (30) to be forcefully inserted into the pipe material, the pipe material and the elastic sleeve (10) being gradually expanded along the conical ring (316) of the expanType: ApplicationFiled: August 30, 2017Publication date: May 21, 2020Applicants: RIFENG ENTERPRISE GROUP CO., LTD., RIFENG TECHNOLOGY CO., LTD.Inventors: Huijian Cao, Zhenbin Diao, Xiyong Lin, Jiajia Cheng, Hui Wang, Wangzhi He, Shiyu Sun, Xiuli Fu, Yong Xie
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Publication number: 20200096145Abstract: A pipe fitting joint assembly, comprising: a guide sleeve, provided with a first concave-convex structure on the outer wall of one end thereof; a connecting body, provided with a second concave-convex structure on the inner walls of both ends thereof; and an inner gear ring, provided with a third concave-convex structure on an inner ring thereof and a fourth concave-convex structure on an outer ring thereof. The inner gear ring is concentrically inserted into the connecting body; the fourth concave-convex structure and the second concave-convex structure are in interference fit; the guide sleeve is concentrically inserted into the inner ring gear of the connecting body; and the first concave-convex structure and the fourth concave-convex structure are in clearance fit therebetween using a moving interference manner.Type: ApplicationFiled: December 29, 2018Publication date: March 26, 2020Applicants: RIFENG ENTERPRISE (FOSHAN) CO., LTD., RIFENG ENTERPRISE GROUP CO., LTD., RIFENG TECHNOLOGY CO., LTD.Inventors: Xiyong Lin, Jiajia Cheng, Zhenbin Diao, Xin Li, Huijian Cao, Wenfeng Chen, Jianbo Liao, Ximin Li, Ali Chen
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Patent number: D996581Type: GrantFiled: December 7, 2020Date of Patent: August 22, 2023Assignees: RIFENG ENTERPRISE (FOSHAN) CO., LTD., RIFENG ENTERPRISE GROUP CO., LTD.Inventors: Ximin Li, Zhenbin Diao, Xiyong Lin, Ali Chen