CN209622289U - A pressure pipe type plastic composite pipe connection joint - Google Patents

Abstract

The utility model belongs to pipeline connecting device technical field, is related to a kind of connector of plastic tube, in particular to a kind of pressure-pipe type plastic composite pipe jointing, steps up the connection that core pipe with groove realizes connector and tubing by section of jurisdiction；Its main structure includes tubing, singly connects core pipe, doubly-linked core pipe, casing, indent horizontal segment, screw thread horizontal segment, vertical section, root circumferential groove, indent, tubing section, linkage section, connecting key, slope chamfering, arc slot section, beading, link block, bolt hole and section of jurisdiction；Core pipe can be easily inserted into coffin by its slope chamfering being arranged, and the indent of setting and the corresponding compression of beading can generate plastic deformation and realize sealing；Its is structurally reasonable, and principle is reliable, and application environment is friendly.

Description

A pressure pipe type plastic composite pipe connection joint

Technical field:

The utility model belongs to the technical field of pipeline connection equipment, relates to a joint of plastic pipes, in particular to a pressure pipe type plastic composite pipe connection joint, which realizes the connection between the joint and the pipe by tightening the core pipe with grooves by the pipe piece.

Background technique:

The application of plastic composite pipes in life is reflected in all aspects. At present, pipe connections are usually carried out in the form of hot melt. This method is dangerous and inefficient in operation. After a long time of use, the sealing performance will deteriorate. question. There are also various problems in the remaining connection means. Therefore, it is sought to design a pressure tube type plastic composite pipe connection joint, which can realize simple and fast operation while ensuring high firmness and high sealing effect, and has good social and economic benefits.

Invention content:

The purpose of the utility model is to overcome the shortcomings of the prior art, and to design a pressure-tube type plastic composite pipe connection joint to realize the connection between the joint and the pipe by tightening the core pipe with grooves by the pipe piece.

In order to achieve the above purpose, the main structure of the pressure pipe type plastic composite pipe connection joint involved in the utility model includes pipe material, single-connected core pipe, double-connected core pipe, sleeve pipe, horizontal section of pressure groove, horizontal section of thread, vertical section, Root circumferential groove, pressure groove, pipe section, connection section, connection key, slope chamfer, arc groove section, bead, connection block, bolt hole and segment; the left end of the stepped cylindrical single-connected core pipe has a slope Chamfering, in order to expand the pipe, the right side of the slope chamfer is the horizontal section of the groove, and there are 2-4 arc grooves on the horizontal section of the groove, the slope chamfer and the horizontal section of the groove are inserted into the pipe, so that The pipe is in contact with the pressure groove; the right side of the horizontal section of the pressure groove is lifted vertically to form a horizontal thread section, and the horizontal section of the thread is provided with threads for fastening with the casing. The right side of the horizontal section of the thread is lifted vertically to form a vertical section, and the vertical section A flange is provided on the top to connect and seal with external pipe fittings; the stepped cylindrical casing includes a pipe section and a connecting section. Connection; one side of two semi-cylindrical structural segments with upper and lower symmetry is provided correspondingly, so as to be inserted into the circumferential groove at the root of the horizontal section of the pressure groove, so as to complete the positioning of the segment, and the middle of each segment is provided with 2 -4 protruding ribs correspond to the grooves on the horizontal section of the groove, so that plastic deformation occurs when the two segments are closed together with the pipe section, and the front and rear ends of each segment are aligned with the groove There are two sections of arc grooves in the middle of the beading, so as to increase the frictional force of the beading pipe when closing. The pipe piece extends radially to form a connecting block. Bolt holes are set on the connecting block, so that the pipe piece can be fixed with bolts after being closed.

Further, when connecting the same pipe material, the single-connected core tube involved in the present invention is replaced with a double-connected core tube, and the double-connected core tube is composed of two symmetrical single-connected core tubes, in which the two vertical sections are directly connected , the connecting part forms an annular groove in the middle; the two sleeves are respectively inserted into the horizontal section of the pressure groove and the horizontal section of the thread on both sides of the double-connected core pipe.

The pipe piece involved in the utility model can be directly compressed on the pressure groove by the pressure rib to produce plastic deformation, without needing to be compressed together with the sleeve pipe.

Compared with the prior art, the utility model can easily insert the core tube into the pipe material by the slope chamfering, and the corresponding compression of the pressure groove and the pressure rib can produce plastic deformation to realize sealing; its structure is reasonable, The principle is reliable and the application environment is friendly.

Description of drawings:

Fig. 1 is a schematic diagram of the structure principle of the single-connected main body of the utility model.

Fig. 2 is a schematic diagram of the structure principle of the double-connected main body of the present invention.

Fig. 3 is a schematic diagram of the principle of the segment structure involved in the present invention.

Fig. 4 is an external schematic diagram of the combination of the utility model.

Detailed ways:

Below by embodiment and in conjunction with accompanying drawing, the utility model is further described.

Example 1:

The main structure of the pressure pipe type plastic composite pipe connection joint involved in this embodiment includes a pipe material 1, a single-connected core pipe 2, a double-connected core pipe 3, a sleeve pipe 4, a pressure groove horizontal section 5, a threaded horizontal section 6, and a vertical section 7. Root circumferential groove 8, pressure groove 9, pipe section 10, connecting section 11, connecting key 12, slope chamfer 13, arc groove section 14, bead 15, connecting block 16, bolt hole 17 and segment 18; There is a slope chamfer 13 on the left end of the stepped cylindrical single-connected core tube 2, so as to expand the pipe material 1, and the right side of the slope chamfer 13 is the horizontal section 5 of the pressure groove, and 2-4 An arc-shaped press groove 9, a slope chamfer 13 and a press groove horizontal section 5 are inserted into the pipe material 1 so that the pipe material 1 is in contact with the press groove 9; the right side of the press groove horizontal section 5 is vertically lifted to form a thread horizontal section 6, and the thread horizontal section 6 Threads (not shown in the accompanying drawings) are provided on the top so as to be fastened with the casing 4, and the right side of the threaded horizontal section 6 is vertically lifted to form a vertical section 7, and a flange is provided on the vertical section 7 to connect with external pipe fittings Sealing; the stepped cylindrical casing 4 includes a pipe section 10 and a connecting section 11, the pipe section 10 is inserted into the pipe 1 lifted by the horizontal section 5 of the pressure groove, and the connecting section 11 is provided with threads and fixedly connected with the threaded horizontal section 6; up and down One side of two symmetrical semi-cylindrical segments 18 is provided with 12 correspondingly, so as to be inserted into the circumferential groove 8 at the root of the horizontal section 5 of the press groove, so as to complete the positioning of the segment 18, the middle of each segment 18 There are 2-4 raised pressure ribs 15, which correspond to the pressure grooves 9 on the pressure groove horizontal section 5, so that after the two tube pieces 18 are closed together, the pipe section 10 is pressed against the pressure groove 9 to produce plastic deformation. The front and rear ends of each segment 18 and the middle of the bead 15 are provided with two sections of arc grooves 14, so as to increase the friction force when closing the bead pipe 1, the segment 18 extends in diameter to form a connecting block 16, and the connecting block 16 is provided with There are bolt holes 17, so that the segments 18 are closed with bolts.

Further, when connecting the same pipe material, the single-connected core tube 2 involved in this embodiment is replaced with a double-connected core tube 3, and the double-connected core tube 3 is composed of two symmetrical single-connected core tubes 2, of which the two vertical The straight section 7 is directly connected, and the connected part forms an annular groove 12 in the middle; the two sleeves 4 are respectively inserted into the grooved horizontal section 5 and the threaded horizontal section 6 on both sides of the double-connected core pipe 3 .

Example 2:

The difference between this embodiment and Embodiment 1 is that the segment 18 can be directly pressed against the pressure groove 9 by the bead 15 to produce plastic deformation, without pressing together with the sleeve 4 again.

Claims (1)

1. A pressure pipe type plastic composite pipe connection joint is characterized in that the main structure includes pipe material, single-connected core pipe, double-connected core pipe, sleeve pipe, horizontal section of pressure groove, horizontal section of thread, vertical section, root circumferential Groove, pressure groove, pipe section, connection section, connection key, slope chamfer, arc groove section, bead, connection block, bolt hole and segment; the left end of the stepped cylindrical single-connected core pipe has a slope chamfer, In order to expand the pipe, the right side of the slope chamfer is the horizontal section of the pressure groove. There are 2-4 arc-shaped grooves on the horizontal section of the pressure groove. The slope chamfer and the horizontal section of the pressure groove are inserted into the pipe so that the pipe and the pressure groove Groove contact; the right side of the horizontal section of the groove is lifted vertically to form a horizontal section of the thread, and the horizontal section of the thread is provided with threads for fastening with the casing. The right side of the horizontal section of the thread is lifted vertically to form a vertical section, and the vertical section is provided with Flange, so as to connect and seal with external pipe fittings; the stepped cylindrical casing includes a pipe section and a connecting section, the pipe section is inserted into the pipe lifted by the horizontal section of the pressure groove, and the connecting section is provided with threads and fixedly connected with the threaded horizontal section; up and down Two symmetrical semi-cylindrical segments are provided on one side so that they can be inserted into the circumferential groove at the root of the horizontal section of the pressure groove to complete the positioning of the segment. There are 2-4 segments in the middle of each segment. The protruding ribs correspond to the grooves on the horizontal section of the groove, so that plastic deformation occurs when the two segments are closed together with the pipe section and the groove is pressed. The front and rear ends of each segment are in the middle of the ribs. There are two sections of arc grooves to increase the friction force when closing the ribbed pipe. The pipe piece extends in the radial direction to form a connecting block. Bolt holes are arranged on the connecting block so that the pipe piece can be fixed with bolts after being closed; the single-connected core pipe Replaced with a double-connected core tube, the double-connected core tube is composed of two symmetrical single-connected core tubes, in which the two vertical sections are directly connected, and the connected part forms a central annular groove; the two sleeves are respectively inserted into the double-connected core The horizontal section of the pressure groove and the horizontal section of the thread on both sides of the pipe; the pipe piece can be directly compressed on the pressure groove by the pressure rib to produce plastic deformation.