CN211232036U - PE pipe fracture reconnection and free diversion joint - Google Patents

Abstract

The utility model discloses a PE pipe breakage reconnection and free direction change joint, belonging to the technical field of PE pipe connection, comprising a first main pipe and a second main pipe, a coil pipe is connected between the first main pipe and the second main pipe, and the first main pipe The outer diameter surfaces of the main pipe and the second main pipe are provided with the same symmetrically arranged fixed clamping devices, the pressure rod of the fixed clamping device moves longitudinally under the action of the limit frame, springs and screws, and the front end of the pressure rod is welded with a pressure rod. A sealing tube is connected at the non-serpentine joint of the first main tube and the second main tube, and the sealing tube is provided with a sealing groove. After putting on the sealing ring, the sealing can be realized. The user only needs to insert the sealing tubes on both sides of the joint to be connected. PE pipe, then screw the screw to fix the PE pipe, and connect the coiled pipe to the main pipes on both sides. The joint is simple in structure and convenient in installation, can realize effective reconnection after the pipeline is broken, has good sealing performance and the function of free direction change of the pipeline, and has a very broad application prospect.

Description

A kind of PE pipe fracture reconnection and free direction change joint

technical field

The utility model belongs to the technical field of PE pipe connection, in particular to a PE pipe fracture reconnection and free direction change joint.

Background technique

PE pipe, also known as polyethylene pipe, is used in a wide range of fields, of which municipal engineering water supply pipelines and oil and gas transmission pipelines are the two largest markets. PE pipe has good corrosion resistance, can resist corrosion of various chemical media, no electrochemical corrosion; under normal working conditions, its safe service life can reach more than 50 years; high impact strength; pipeline is light and easy to install convenient. It can be widely used in various pipeline projects.

In the process of using PE pipe, it may break due to the action of external force, but the existing pipe connection technology is extremely cumbersome. The sealing performance of the pipeline is reduced, which brings great inconvenience to the subsequent production and maintenance. At the same time, the existing pipeline connection method can only connect the pipeline, and cannot effectively realize the direction-changing function of the pipeline under special terrain and working conditions, so It brings certain troubles to the construction personnel. Therefore, the utility model provides a PE pipe breakage reconnection and free direction change joint to solve the above-mentioned problems.

Utility model content

Aiming at the defects and improvement needs of the prior art, the utility model provides a PE pipe breakage reconnection and free direction change joint, so as to solve the wear loss caused by the pipe connection proposed in the above-mentioned background technology, the connection method is cumbersome, and the pipeline is stable. The problem is that the stability and sealing performance are reduced, and the pipeline needs to be changed in direction after the pipeline is connected.

For achieving the above purpose, the utility model provides the following technical solutions: a kind of PE pipe fracture reconnection and free direction change joint, comprising a first main pipe and a second main pipe, and a coiled pipe is connected between the first main pipe and the second main pipe, And the outer diameter surfaces of the first main pipe and the second main pipe are provided with the same symmetrically arranged fixed clamping device, and the pressing rod of the fixed clamping device moves longitudinally under the action of the limit frame, the spring and the screw, The front end of the pressing rod is welded with a pressing block, and a sealing pipe is connected to the non-coiled pipe connection between the first main pipe and the second main pipe, and the sealing pipe is provided with a sealing groove.

Further, the coiled pipe is a freely bendable metal hose, and is connected with the first main pipe and the second main pipe by internal and external threads.

Further, the pressure rod of the fixed clamping device is fixedly connected with equal height springs with different elastic coefficients on both sides of the limit frame, the elastic coefficient of the first spring is smaller than that of the second spring, and the first screw and the second screw pass The small hole on the overpressure rod passes through the middle of the first spring and the second spring respectively, and is matched with the corresponding threaded hole on the main pipe.

Further, the limit frame is hollow in the middle and has grooves on both sides, and circular bumps are welded on both sides of the pressure rod, and the round bumps are clamped in the slots on both sides of the limit frame.

Further, the pressing block is a 1/3 arc segment with a certain thickness, the inner surface can fit with the outer diameter of the PE pipe to be connected, and there is a layer of reinforcing fibers on the inner surface.

Further, the sealing pipe is evenly distributed with more than one annular sealing groove in the axial direction, the sealing groove is provided with a certain thickness in the axial direction, and the maximum turning radius of the sealing groove is slightly smaller than the inner diameter of the PE pipe to be connected. At the same time, the sealing groove is sleeved with a matching sealing ring to form multiple seals.

Compared with the prior art, the utility model has the following beneficial effects:

1. The utility model adopts a multiple sealing structure, and a plurality of sealing grooves are opened on the sealing pipe, and the sealing grooves are equipped with sealing rings, which improves the sealing performance;

2. The fixing and clamping device in the present utility model presses the pressure rod and the pressure block downward by screwing in the screw until the inner surface of the pressure block is closely fitted with the outer surface of the PE pipe. In this case, since the elastic coefficient of the second spring is greater than that of the first spring, the larger restoring force causes the two springs to generate an unbalanced moment at the limit frame, which can press the pressure block tightly outside the PE pipe. The reinforcing fibers on the inner surface of the compact can also increase the friction force between it and the outer surface of the PE pipe, prevent unnecessary rotation, and enhance the stability of the pipe connection;

3. The pipeline connection method of the present invention is simple. It only needs to insert the broken PE pipeline into the sealing tubes on both sides, and then screw on the screws to fix the PE pipeline. When the working condition requires changing the direction of pipeline transportation, only It is only necessary to deform the corresponding shape of the coil pipe to complete the direction change. The connection method is convenient and fast, and can effectively realize the simple direction change of the pipeline.

Description of drawings

Fig. 1 is the semi-section structure schematic diagram of the present utility model;

Fig. 2 is the partial enlarged schematic diagram of the utility model A;

Figure 3 is a top view of the fixed clamping device;

Figure 4 is a left side view of the pressing block.

In the picture: 1. Sealing tube, 2. Press block, 3. Press rod, 4. Limit frame, 5. First main pipe, 6. Coil pipe, 7. Second main pipe, 8. Second spring, 9. Second screw, 10. first screw, 11. first spring, 12. reinforcing fiber.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

Please refer to Figure 1-4, a PE pipe fracture reconnection and free direction change joint, including sealing pipe 1, pressure block 2, pressure rod 3, limit frame 4, first main pipe 5, coil pipe 6, second main pipe 7 , the second spring 8, the second screw 9, the first screw 10, the first spring 11, the first main pipe 5 and the second main pipe 7 are connected with a coiled pipe 6, and the first main pipe 5 and the second main pipe 7 have a symmetrical outer surface. The fixed clamping device is arranged, the clamping device is composed of a pressure block 2, a pressure rod 3, a limit frame 4, a first screw 10, a second screw 9, a first spring 11, and a second spring 8. 5 and the side of the second main pipe 7 away from the coiled pipe 6 are connected with a sealing tube 1, and there are multiple sealing grooves on the sealing tube 1, which can achieve multiple sealing effects and avoid leakage.

1-3, the first spring 11 and the second spring 8 are fixedly connected between the first main pipe 5 and the pressure rod 3, and are distributed on the left and right sides of the limiter 4, and the pressure rod 3 is provided with two small The first screw 10 and the second screw 9 pass through the small hole, and then pass through the middle space of the first spring 11 and the second spring 8, and screw into the threaded hole on the first main pipe 5. During the process, the screwing depth of the two screws is always kept the same to ensure the level of the pressure rod 3. The elastic coefficient of the second spring 8 is greater than the elastic coefficient of the first spring 11, so that the restoring force of the two springs forms an inconsistency at the limit frame 4. Balance moment, this moment can make the pressure block 2 tightly pressed on the outer surface of the PE pipe, the limit frame 4 is a top square with grooves all around, and the circular bumps on the left and right sides of the pressure rod 3 are stuck in the limit. In the slot of the position frame 4 , it is ensured that the pressing rod 3 can only move along the longitudinal plane under the control of the position limit frame 4 .

Please refer to Figure 4, the pressure block 2 and the pressure rod 3 are fixed by a welding gap, the pressure block 2 is a 1/3 arc segment with a certain thickness, and the radius of the arc on the lower surface of the pressure block 2 is just right Matching the outer diameter of the PE pipe to be connected, there is a layer of reinforcing fibers 12 on the lower surface of the pressure block 2, which can improve the friction between the pressure block 2 and the PE pipe, prevent the PE pipe from rotating, and improve the stability and reliability of the installation. .

Please refer to FIG. 1 , the coiled tube 6 is a piece of metal hose that can be bent freely. There are internal threads on both sides of the coiled tube, which are screwed and connected with the external threads of the first main pipe 5 and the second main pipe 7, and are easy to install.

Referring to FIG. 1 , the sealing tube 1 is provided with a plurality of sealing grooves, which are evenly distributed along the axial direction. At the same time, the sealing grooves are equipped with sealing rings to cooperate with them. Multiple sealing grooves can improve the sealing performance.

Working principle: When using this joint to repair and connect the PE pipe, insert the sealing pipe 1 with sealing rings on both sides into the PE pipe to be connected, and then screw in the first screw 10 and the second screw 9 at the same time, so that the first spring 11 and the second spring 8 are compressed at the same time, causing the upper and lower pressure rods 3 to move closer together in the radial direction. During the screw-in process, keep the screw in the same depth until the pressure block 2 closely fits the outer pipe of the PE pipe. The larger restoring force of the second spring 8 will cause the pressure rod 3 to form a moment at the limit frame 4, the lower surface of the pressure block 2 has a layer of reinforcing fibers 12, and then the combination of the pressure block 2 and the surface of the PE pipe will be tighter. The PE pipe can be prevented from falling off or rotating. Finally, the coiled pipe 6 with internal thread is connected with the external thread of the first main pipe 5 and the second main pipe 7, and the installation of the joint is completed. Bending, thereby changing the transmission direction of the pipeline line.

The above are only the preferred embodiments of the present invention. For those skilled in the art, without departing from the concept of the present invention, some modifications and improvements should be made, which should be included within the protection scope of the present invention. .

Claims (6)

1. The utility model provides a PE pipe fracture reconnection and free diversion connect which characterized in that: be responsible for (7) including first person in charge (5) and second, first person in charge (5) and second are responsible for and are connected with between (7) coil (6), just the external diameter surface that first person in charge (5) and second are responsible for (7) is provided with the fixed clamping device of the same symmetrical arrangement, vertical removal is carried out under spacing (4) and the effect of spring, screw in depression bar (3) front end welding has briquetting (2), is responsible for non-coil (6) junction of (7) at first person in charge (5) and second and all is connected with seal tube (1), there is the seal groove on seal tube (1).

2. The PE pipe breakage reconnection and free direction change joint as claimed in claim 1, wherein the coil pipe (6) is a metal hose which can be freely bent and is screwed with the first main pipe (5) and the second main pipe (7) by internal and external threads.

3. The PE pipe breakage reconnection and free direction changing joint as claimed in claim 1, wherein equal-height springs with unequal elastic coefficients are fixedly connected to two sides of the limiting frame (4) through the compression rod (3) of the fixed clamping device, the elastic coefficient of the first spring (11) is smaller than that of the second spring (8), and the first screw (10) and the second screw (9) firstly penetrate through a small hole in the compression rod (3) and then respectively fit with corresponding threaded holes in the main pipe through the middle parts of the first spring (11) and the second spring (8).

4. The PE pipe fracture reconnection and free direction changing joint as claimed in claim 3, wherein the middle of the limiting frame (4) is hollow, grooves are formed in two sides of the limiting frame, circular convex blocks are welded on two sides of the compression bar (3), and the circular convex blocks are clamped in the grooves in two sides of the limiting frame (4).

5. The PE pipe fracture reconnection and free direction change joint as claimed in claim 1, wherein the pressing block (2) is an 1/3 arc segment with a certain thickness, the inner surface can be attached to the outer diameter of the PE pipe to be connected, and a layer of reinforcing fibers (12) is arranged on the inner surface.

6. The PE pipe fracture reconnection and free direction changing joint as claimed in claim 1, wherein more than one annular sealing groove is uniformly distributed in the sealing pipe (1) along the axial direction, the sealing groove is provided with a certain thickness along the axial direction, the maximum rotation radius of the sealing groove is slightly smaller than the inner diameter of the PE pipe to be connected, and a sealing ring matched with the sealing groove is sleeved in the sealing groove during installation to form multiple sealing.

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