# US 12,110,998 B2 · Pipe fitting connector > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,110,998 B2 - Document ID: US12110998B2 - Status: Granted - Kind: B2 - Application number: 18/098,265 - Filed: 2023-01-18 - Published: 2023-05-18 - Granted: 2024-10-08 - Earliest claimed: 2022-10-11 - Assignees: Wuxi Jinhua Yiyuan Technology Co., Ltd - Applicants: Wuxi Jinhua Yiyuan Technology Co., Ltd - Inventors: Niandong Gu; Xiaojia Lu - Web page: https://patentgrep.com/patent/US12110998B2 ## CPC - F16L 37/098: by means of flexible hooks - A61M 2039/1027: {Quick-acting type connectors} - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract The present disclosure relates to the technical field of pipe fittings, specifically a pipe fitting connector. The pipe fitting connector includes a first connection member and a second connection member; the first connection member includes a first columnar pipe fitting, and a sealing member arranged on an outer wall of the first connection member; the second connection member includes a second columnar pipe fitting and a locking piece; the first columnar pipe fitting extends into the second columnar pipe fitting; the sealing member is located between an outer wall of the first columnar pipe fitting and an inner wall of the second columnar pipe fitting to seal the first connection member to the second connection member; and the locking piece is used for locking the first connection member to the second connection member. ## Claims ### Claim 1 A pipe fitting connector, comprising: a first connection member (1), wherein the first connection member (1) comprises a first columnar pipe fitting (11); a sealing member (2), wherein the sealing member (2) is arranged on an outer wall of the first connection member (1); a second connection member (3), wherein the second connection member (3) comprises a second columnar pipe fitting (31); the first columnar pipe fitting (11) extends into the second columnar pipe fitting (31); the sealing member (2) is located between an outer wall of the first columnar pipe fitting (11) and an inner wall of the second columnar pipe fitting (31) to seal the first connection member (1) to the second connection member (3); and a locking piece (4), wherein the locking piece (4) is connected to the first connection member (1); the locking piece (4) comprises an annular member (43), two or more elastic arms (41) and hooks (42); wherein the annular member (43) is sleeved on the first connection member (1); the annular member (43), the elastic arms (41) and the hooks (42) are integrally formed; wherein the elastic arms (41) extend from the annular member (43), and the elastic arms (41) and the annular member (43) form a trapezoid structure; the hook (42) is formed on an outside surface of one end of the elastic arms (41) away form the annular member (43); when the first connection member (1) and the second connection member (3) are sealed, the elastic arms (41) extend into locking through holes (32) formed in the second connection member (3) to generate a pre-tightening force on inner walls of the locking through holes (32); and the hooks (42) are simultaneously hooked to end faces of the locking through holes (32) to lock the first connection member (1) to the second connection member (3). ### Claim 2 (depends on 1) The pipe fitting connector according to claim 1, wherein the first connection member (1) comprises a first retainer (12) and second retainers (13); the annular member (43) is located between the first retainer (12) and the second retainers (13), and is spaced apart from the first retainer (12) and the second retainers (13) by axial spaces. ### Claim 3 (depends on 2) The pipe fitting connector according to claim 2, wherein the first retainer (12) is an annular bulge integrated with the first connection member (1); the second retainers (13) are several curved bulges arranged in a circumferential direction of the first connection member (1) and integrated with the first connection member (1). ### Claim 4 (depends on 1) The pipe fitting connector according to claim 1, wherein one side of each elastic arm (41) away from the first columnar pipe fitting (11) is provided with antiskid lines (44). ### Claim 5 (depends on 1) The pipe fitting connector according to claim 1, wherein the second connection member (3) comprises two or more wall pieces (33); the wall pieces (33) are located outside the second columnar pipe fitting (31), and the locking through holes (32) are formed between the wall pieces and an outer wall of the second columnar pipe fitting (31); and a wall thickness of one side of each wall piece (33) close to the first connection member (1) is greater than a wall thickness of one side away from the first connection member (1). ### Claim 6 (depends on 1) The pipe fitting connector according to claim 1, wherein one end of the second columnar pipe fitting (31) close to the first columnar pipe fitting (11) is provided with an annular chamfer (34); one end of the annular chamfer (34) extends to be connected to an end face of the second columnar pipe fitting (31), and the other end of the annular chamfer (34) extends to be connected to the inner wall of the second columnar pipe fitting (31). ### Claim 7 (depends on 1) The pipe fitting connector according to claim 1, wherein the first connection member (1) comprises ring slots (14); the ring slots (14) are formed on the outer wall of the first columnar pipe fitting (11); and the sealing member (2) is arranged in the ring slots (14). ### Claim 8 (depends on 1) The pipe fitting connector according to claim 1, wherein the first connection member (1) further comprises an edge slot (15); the edge slot (15) is formed in an outer edge of an end portion of the first columnar pipe fitting (11); the second connection member (3) further comprises a flange (35); the flange (35) is located in the middle of the inner wall of the second columnar pipe fitting (31); and the flange (35) and the edge slot (15) match each other when the first columnar pipe fitting (11) is placed in the second columnar pipe fitting (31). ### Claim 9 A pipe fitting connector, comprising: a first connection member (1), wherein the first connection member (1) comprises a first columnar pipe fitting (11), a first retainer (12) and second retainers (13); wherein the first retainer (12) is an annular bulge integrated with the first connection member (1); the second retainers (13) are several curved bulges arranged in a circumferential direction of the first connection member (1) and integrated with the first connection member (1); a sealing member (2), wherein the sealing member (2) is arranged on an outer wall of the first connection member (1); a second connection member (3), wherein the second connection member (3) comprises a second columnar pipe fitting (31); the first columnar pipe fitting (11) extends into the second columnar pipe fitting (31); the sealing member (2) is located between an outer wall of the first columnar pipe fitting (11) and an inner wall of the second columnar pipe fitting (31) to seal the first connection member (1) to the second connection member (3); and a locking piece (4), wherein the locking piece (4) is connected to the first connection member (1); the locking piece (4) comprises an annular member (43), elastic arms (41) and hooks (42); wherein the annular member (43) is sleeved on the first connection member (1), located between the first retainer (12) and the second retainers (13), and spaced apart from the first retainer (12) and the second retainers (13) by axial spaces; the elastic arms (41) extend from the annular member (43); the hook (42) is formed on an outside surface of one end of the elastic arms (41) away form the annular member (43); when the first connection member (1) and the second connection member (3) are sealed, the elastic arms (41) extend into locking through holes (32) formed in the second connection member (3) to generate a pre-tightening force on inner walls of the locking through holes (32); and the hooks (42) are simultaneously hooked to end faces of the locking through holes (32) to lock the first connection member (1) to the second connection member (3). ### Claim 10 (depends on 9) The pipe fitting connector according to claim 9, wherein one side of each elastic arm (41) away from the first columnar pipe fitting (11) is provided with antiskid lines (44). ### Claim 11 (depends on 9) The pipe fitting connector according to claim 9, wherein the second connection member (3) comprises two or more wall pieces (33); the wall pieces (33) are located outside the second columnar pipe fitting (31), and the locking through holes (32) are formed between the wall pieces and an outer wall of the second columnar pipe fitting (31); and a wall thickness of one side of each wall piece (33) close to the first connection member (1) is greater than a wall thickness of one side away from the first connection member (1). ### Claim 12 (depends on 9) The pipe fitting connector according to claim 9, wherein one end of the second columnar pipe fitting (31) close to the first columnar pipe fitting (11) is provided with an annular chamfer (34); one end of the annular chamfer (34) extends to be connected to an end face of the second columnar pipe fitting (31), and the other end of the annular chamfer (34) extends to be connected to the inner wall of the second columnar pipe fitting (31). ### Claim 13 (depends on 9) The pipe fitting connector according to claim 9, wherein the first connection member (1) comprises ring slots (14); the ring slots (14) are formed on the outer wall of the first columnar pipe fitting (11); and the sealing member (2) is arranged in the ring slots (14). ### Claim 14 (depends on 9) The pipe fitting connector according to claim 9, wherein the first connection member (1) further comprises an edge slot (15); the edge slot (15) is formed in an outer edge of an end portion of the first columnar pipe fitting (11); the second connection member (3) further comprises a flange (35); the flange (35) is located in the middle of the inner wall of the second columnar pipe fitting (31); and the flange (35) and the edge slot (15) match each other when the first columnar pipe fitting (11) is placed in the second columnar pipe fitting (31).