Quick connection clamping hoop

Abstract

A quick connection clamping hoop, including an upper clamping hoop body and a lower clamping hoop body that are both in a semi-annular shape; where the upper clamping hoop body and the lower clamping hoop body each have one end as a plug connecting end and the other end as a connecting end; connecting ends of the upper clamping hoop body and the lower clamping hoop body each are provided with a lug, and the connecting ends of the two are connected together via a bolt passing through lugs; plug connecting ends of the two are connected together via a plug connecting mechanism disposed at the plug connecting ends of the two. A clamping hoop in this structure is assembled and connected to a pipe quickly, and is convenient for use, which can greatly improve production efficiency of the clamping hoop and efficiency of pipe connection.

What is claimed is: 
     
         1 . A quick connection clamping hoop, comprising an upper clamping hoop body and a lower clamping hoop body that are both in a semi-annular shape, two upper convex ribs being disposed on an inner annular face of the upper clamping hoop body at intervals, the two upper convex ribs being radially inward convex and extending in a circumferential direction of the inner annular face, and an upper sealing ring groove located between the upper convex ribs being disposed on the inner annular face; and two lower convex ribs being disposed on an inner annular face of the lower clamping hoop body at intervals, the two lower convex ribs being radially inward convex and extending in a circumferential direction of the inner annular face, and a lower sealing ring groove located between the lower convex ribs being disposed on the inner annular face; wherein the upper clamping hoop body and the lower clamping hoop body each have one end as a plug connecting end and the other end as a connecting end; connecting ends of the upper clamping hoop body and the lower clamping hoop body each are provided with a lug, and the connecting ends of the two are connected together via a bolt passing through lugs; plug connecting ends of the upper clamping hoop body and the lower clamping hoop body are connected together via a plug connecting mechanism disposed at the plug connecting ends of the two; and after end-to-end connections, the upper clamping hoop body and the lower clamping hoop body are capable of enclosing central space for receiving a pipe, and a sealing ring installed in the upper and lower sealing ring grooves is disposed in the central space. 
     
     
         2 . The quick connection clamping hoop according to  claim 1 , wherein the plug connecting mechanism comprises two connecting blocks connected to the plug connecting end of the upper clamping hoop body, the connecting blocks are connected with a connecting post, and the connecting blocks, the connecting post and the upper clamping hoop body enclose an inserting hole; the plug connecting end of the lower clamping hoop body is connected with a connecting arm whose outer end is a hook; and the hook of the connecting arm is capable of being hooked on the connecting post after the connecting arm is inserted into the inserting hole, so as to achieve an inserting connection of the plug connecting ends of the upper clamping hoop body and the lower clamping hoop body. 
     
     
         3 . The quick connection clamping hoop according to  claim 2 , wherein a face of the hook in contact with the connecting post and a face of the connecting post in contact with the hook are both arc faces. 
     
     
         4 . The quick connection clamping hoop according to  claim 1 , wherein the plug connecting mechanism comprises a connecting plate connected to the plug connecting end of the upper clamping hoop body, the connecting plate is connected with a plug connecting post, and an inserting gap is disposed between the plug connecting post and the upper clamping hoop body; the plug connecting end of the lower clamping hoop body is connected with a plug connecting arm whose outer end is a hook; and the hook of the plug connecting arm is capable of being hooked on the plug connecting post after the plug connecting arm is inserted into the inserting gap, so as to achieve an inserting connection of the plug connecting ends of the upper clamping hoop body and the lower clamping hoop body. 
     
     
         5 . The quick connection clamping hoop according to  claim 4 , wherein a face of the hook in contact with the plug connecting post and a face of the plug connecting post in contact with the hook are both arc faces. 
     
     
         6 . The quick connection clamping hoop according to  claim 1 , wherein a distance between a groove bottom of the upper sealing ring groove of the upper clamping hoop body and an inner annular face of an upper convex rib is an upper groove depth; the upper groove depth is the greatest at a middle part of the upper clamping hoop body and the smallest at an end part of the upper clamping hoop body; a distance between a groove bottom of the lower sealing ring groove of the lower clamping hoop body and an inner annular face of a lower convex rib is a lower groove depth; and the lower groove depth is the greatest at a middle part of the lower clamping hoop body and the smallest at an end part of the lower clamping hoop body. 
     
     
         7 . The quick connection clamping hoop according to  claim 6 , wherein the upper groove depth gradually decreases from the middle part of the upper clamping hoop body to two end parts; and the lower groove depth gradually decreases from the middle part of the lower clamping hoop body to two end parts. 
     
     
         8 . The quick connection clamping hoop according to  claim 6 , wherein a groove bottom face of the upper sealing ring groove is an arc face in an elliptical arc shape, and the inner annular face of the upper convex rib is an arc face in an elliptical arc shape; and a groove bottom face of the lower sealing ring groove is an arc face in an elliptical arc shape, and the inner annular face of the lower convex rib is an arc face in an elliptical arc shape. 
     
     
         9 . The quick connection clamping hoop according to  claim 1 , wherein the sealing ring comprises a rubber ring body, two ends of the rubber ring body each are provided with an end wall that is integrally connected with the rubber ring body and is provided with an axial through hole in a central part, an inner edge of the end wall is axially inward convex to form a ring lip, and the sealing ring further comprises a retaining ring not directly integrally connected with the rubber ring body. 
     
     
         10 . The quick connection clamping hoop according to  claim 9 , wherein the number of retaining rings are two, and the retaining rings are respectively connected to two ring lips. 
     
     
         11 . The quick connection clamping hoop according to  claim 9 , wherein a plurality of bumps are annularly disposed on an inner wall face of the rubber ring body, sockets are disposed on the bumps, and the retaining ring is inserted in the sockets. 
     
     
         12 . The quick connection clamping hoop according to  claim 11 , wherein an inner annular face of the retaining ring is connected with a guiding sleeve. 
     
     
         13 . The quick connection clamping hoop according to  claim 9 , wherein an annular connecting body is inserted between the rubber ring body and the ring lip, the annular connecting body is configured to be hollow to form a ring cavity, an opening is disposed on an outer annular face of the annular connecting body in a circumferential direction of the annular connecting body, and the retaining ring is connected to an inner annular face of the annular connecting body. 
     
     
         14 . The quick connection clamping hoop according to  claim 13 , wherein a plurality of liquid passage holes are annularly disposed on an inner annular face of the retaining ring, and the liquid passage holes are in communication with the ring cavity.