CN205716119U - Metal pipe connection device - Google Patents

Abstract

A metal pipeline connecting device comprises a first pipeline, a second pipeline, a movable connecting pipe, an inner connecting pipe and a hoop positioning mechanism; the pipe diameter of the loose joint end of the loose joint pipe is smaller than the pipe inner diameter of the first pipeline, and the loose joint end of the loose joint pipe is inserted into the first pipeline to enable the loose joint end of the loose joint pipe to be in sealing butt joint with the first pipeline; the positioning end of the movable connecting pipe is provided with a movable connecting pipe, and the inner diameter of the movable connecting pipe is larger than that of the movable connecting pipe; the outer diameter of the inner connecting pipe is smaller than the pipe inner diameter of the movable connecting pipe and the pipe inner diameter of the second pipeline, the movable connecting pipe and the second pipeline are respectively inserted into the two ends of the inner connecting pipe to enable the movable connecting pipe to be in sealed butt joint with the second pipeline, and the movable connecting pipe and the second pipeline are axially fixedly connected through the clamp positioning mechanism. The device has the advantages of simple structure, convenience in installation, low labor cost and maintenance cost, zero rejection rate, capability of adjusting the length of the connecting pipeline according to the actual condition of the installation site and the like. The connecting device can be used for connecting and installing various metal pipelines.

Description

Metal pipe connection device

technical field

The utility model relates to a pipeline, in particular to a connection device for metal pipelines.

Background technique

At present, when connecting and installing metal pipes, they are generally interconnected with pipes of the same length and specification. If short pipes are installed on the installation site, it is necessary to cut the pipes on site according to the cost of the specific construction site and weld them on site. Processing requires high technical requirements for the technicians who install the pipeline, and special installation tools are also required. Therefore, the existing metal pipe connection installation has the disadvantages of complex installation process, long installation time, high labor cost, and high scrap rate. In addition, if the existing pipeline installation structure needs to be repaired, a large area of the pipeline will be scrapped, and the maintenance cost will be high.

Utility model content

In order to solve the above technical problems, the utility model provides a metal pipeline connection device which is easy to install, has low labor cost and low maintenance cost.

The technical scheme of the utility model includes: a metal pipe connection device, including a first pipe and a second pipe, and also includes a union pipe, an inner connection pipe and a hoop positioning mechanism; the pipe diameter of the union end of the union pipe is smaller than the The pipe inner diameter of the first pipeline, and the union end of the union pipe is inserted into the first pipeline so that the union end of the union pipe seals butt joint with the first pipeline; Take over the connecting pipe, the inner diameter of the connecting pipe of the union is greater than the inner diameter of the union; the outer diameter of the inner connecting pipe is smaller than the inner diameter of the connecting pipe of the union and the inner diameter of the second pipeline, through the The two ends of the internal connecting pipe are respectively inserted into the union pipe connecting pipe and the second pipe so that the union pipe connecting pipe is sealed with the second pipe, and the hoop positioning mechanism connects the union pipe connecting pipe with the second pipe. The second pipeline is axially positioned and fixed.

A preferred embodiment of the present utility model is that a first seal ring is installed between the outer wall of the union end of the union pipe and the inner wall of the first pipeline, and the union pipe and the union joint are realized by means of the first seal ring. A sealed connection of the first conduit.

A preferred embodiment of the present utility model is that, the outer wall of the telescopic tube of the union is provided with a union seal ring groove, and the first seal ring is installed in the union seal ring groove.

A preferred embodiment of the present utility model is that, the outer peripheral wall of the butt joint end of the union pipe connecting pipe is provided with a connecting pipe flange; corresponding to the connecting pipe flange, a first positioning groove is provided on the inner wall of the clamp positioning mechanism When the connecting pipe of the union pipe is butt-mounted with the second pipe, the flange of the connecting pipe is inserted into the first positioning groove. The above-mentioned convex edge can be the flanging of the nozzle, and can also be a boss provided on the edge of the nozzle or the outer wall of the tube close to the nozzle.

A preferred embodiment of the present utility model is that, the outer peripheral wall of the butt end of the second pipeline is provided with a second pipeline convex edge; corresponding to the second pipeline convex edge, a second positioning concave is provided on the inner wall of the clamp positioning mechanism. Groove, so that when the union pipe connecting pipe is docked with the second pipe, the flange of the second pipe is inserted into the second positioning groove. The above-mentioned convex edge can be the flanging of the nozzle, and can also be a boss provided on the edge of the nozzle or the outer wall of the tube close to the nozzle.

A preferred embodiment of the present invention is that sealing rings are respectively installed between the outer wall of the inner connecting pipe, the inner wall of the union pipe connecting pipe and the inner wall of the second pipeline, and the sealing ring is used to realize the The sealing connection between the internal connecting pipe, the union pipe connecting pipe and the second pipeline.

A preferred embodiment of the present invention is that the outer wall of the inner connecting pipe is provided with a sealing ring groove, and the sealing ring is installed in the sealing ring groove.

A preferred embodiment of the present invention is that at least one isolating rib is provided on the outer wall of the inner connecting pipe, and a rib positioning groove is provided on the inner wall of the clamp positioning mechanism corresponding to the isolating rib. When the connecting pipe of the union pipe is connected to the second pipe for butt installation, the isolating ribs are embedded in the rib positioning grooves.

A preferred embodiment of the present invention is that more than one installation groove is provided on the outer wall of the union pipe. The above one or more include one. The installation groove can be in the shape of a pit on the outer wall of the union pipe or in the shape of a ring along the peripheral wall of the pipe.

A preferred embodiment of the present invention is that a first pipe flange is provided on the outer peripheral wall of the butt end of the first pipe; A pipe flange is provided with a first positioning groove, and a fixed flange is provided on the inner wall of the clamp corresponding to the installation groove; when the union is connected to the first pipe, the first pipe flange is embedded The first positioning groove, the fixing flange snaps into one of the installation grooves.

The beneficial technical effects of the utility model include: during the operation of using the pipeline connection device, first insert one end of the inner connecting pipe into the union pipe, and then insert the other end of the inner connecting pipe into the For the second pipeline, connect the union pipe with the second pipeline, and then fasten the hoop positioning mechanism at the joint of the union pipe and the second pipeline so that the union pipe and the second pipeline are axially positioned and fixed. Then insert the union end of the union pipe into the first pipe to make the union end of the union pipe seal-joint with the first pipe; and according to the length of the connecting pipeline required between the first pipe and the second pipe, Adjust the length of the union end of the union pipe to be inserted into the first pipe, so as to realize the direct installation of the first pipe and the second pipe by hand according to the actual needs of the site. The union pipe is equivalent to an adjustable length for connecting the first pipe and the second pipe The connecting short pipe of the two pipelines. Second, because the diameter of the union pipe connecting pipe is larger than the union pipe, a step is formed at the junction of the two. When the inner connecting pipe is inserted into the union pipe connecting pipe, the end of the inner connecting pipe can be clamped at the above-mentioned step, realizing The positioning of the inner connecting pipe in the union pipe is ensured, and the inner connecting pipe will not wander in the union pipe due to pressure changes in the pipeline, so that the structure is more stable. Thirdly, a first seal ring is installed between the outer wall of the union end of the union pipe and the inner wall of the first pipe, and the union end of the union pipe is inserted into the first pipe to achieve The sealing connection between the union pipe and the first pipe realizes the butt connection between the first pipe and the union pipe. Fourth, the outer wall of the inner connecting pipe is provided with isolation ribs, and the clamp positioning mechanism is clamped at the joint between the union and the second pipeline. Correspondingly, the isolation ribs are embedded in the rib positioning recesses of the clamp positioning mechanism In the groove, lock the clamp of the clamp positioning mechanism, so as to prevent the inner connecting pipe from wandering in the second pipeline due to the internal pressure of the pipe, and at the same time realize the axial positioning and fixed connection of the union pipe and the second pipeline. Fifth, the outer peripheral walls of the butt ends of the union pipe connecting pipes are respectively provided with connecting pipe flanges; corresponding to the connecting pipe flanges, a first positioning groove is provided on the inner wall of the clamp positioning mechanism, so that the union pipes are connected When the pipe and the second pipe are butted and installed, the flange of the connecting pipe is embedded in the first positioning groove, and the axial positioning of the union pipe and the second pipe is realized through the clamping and locking of the clamp positioning mechanism Fixed connection. Sixth, the outer peripheral wall of the butt end of the second pipeline is respectively provided with a second pipeline flange; corresponding to the second pipeline flange, a second positioning groove is provided on the inner wall of the clamp positioning mechanism, so that the union pipe When the connecting pipe is butt-mounted with the second pipe, the flange of the second pipe is embedded in the second positioning groove, and the joint and locking of the clamp positioning mechanism are used to realize the axial alignment between the union pipe and the second pipe. Fixed to the positioning. Seventh, the hoop positioning mechanism is used to lock the joint of the union pipe and the second pipeline with a hoop, so as to realize the axial positioning and connection of the union pipe and the second pipeline at the joints of the union pipe and the second pipeline. The clamp positioning mechanism can be a detachable connection structure or a non-detachable structure. This structure is easy to install and easy to operate, and does not require installers to have specific installation skills, thereby saving labor costs. Eighth, more than one installation groove is provided on the outer wall of the joint. According to the length requirements of the on-site pipeline, one of the installation grooves can be selected for the connection end of the first pipeline, and then the first pipeline and the union pipe can be positioned and connected together with a clamp, so that the connection structure between the two is more stable, and at the same time The length of insertion of the union end of the union pipe into the first pipeline can be adjusted according to the length of the connecting pipeline between the first pipeline and the second pipeline.

In summary, the utility model has beneficial effects such as simple structure, easy installation, low labor cost and maintenance cost, zero scrapping rate, and the length of the connecting pipeline can be adjusted according to the actual situation of the installation site.

The utility model can be used for connection and installation of various metal pipes.

Description of drawings

Fig. 1 is a schematic cross-sectional view of the structure of the union pipe 4 in the first embodiment.

Fig. 2 is a schematic cross-sectional view of the structure of the inner connecting pipe 3 in the first embodiment.

Fig. 3 is a schematic radial cross-sectional view of the structure of the clamp positioning mechanism 5 in the first embodiment.

Fig. 4 is a schematic cross-sectional view of the structure of the metal pipe connection device of the first embodiment.

Fig. 5 is a schematic cross-sectional view of the structure of the metal pipe connection device of the second embodiment.

detailed description

Embodiment one

As shown in FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , a metal pipe connection device includes a first pipe 1 , a second pipe 2 , an inner connecting pipe 3 , a union pipe 4 , and a hoop positioning mechanism 5 .

As shown in Figures 1 and 4, the pipe diameter of the union end of the union pipe 4 is smaller than the pipe inner diameter of the first pipeline 1, and the outer wall of the telescoping pipe of the union pipe 4 is provided with a union seal ring groove 43, and the first The sealing ring 7 is installed in the groove 43 of the union pipe sealing ring. A first seal ring 7 is installed between the outer wall of the union end of the union pipe 4 and the inner wall of the first pipe 1, and the seal between the union pipe 4 and the first pipe 1 is realized by means of the first seal ring 7 connect.

As shown in Fig. 1 and Fig. 4, the positioning end of union pipe 4 is provided with union pipe connecting pipe 41, and the pipe internal diameter of described union pipe connecting pipe 41 is greater than the pipe inner diameter of described union pipe 4, and the butt joint end of union pipe connecting pipe 41 The outer peripheral wall is respectively provided with a connecting pipe flange 42; corresponding to the connecting pipe flange 42, a first positioning groove is provided on the inner wall of the clamp positioning mechanism 5, so that the union pipe connecting pipe 41 and the second pipeline 2 During docking installation, the flange 42 of the connecting pipe is inserted into the first positioning groove.

As shown in Figure 2 and Figure 4, the outer diameter of the inner connecting pipe 3 is smaller than the pipe inner diameter of the union pipe connecting pipe 41 and the pipe inner diameter of the second pipeline 2, and the outer walls of the inner connecting pipe 3 both sides are respectively provided with sealing ring grooves. Groove 32, the seal ring 6 is installed in the seal ring groove 32, the two ends of the inner connecting pipe 3 are respectively inserted into the union pipe connecting pipe 41 and the second pipe 2, and the inner connection is realized by means of the seal ring 6. The connecting pipe 3 is in sealing connection with the union pipe connecting pipe 41 and the second pipeline 2 . The outer wall of the inner connecting pipe 3 is provided with at least one isolation rib 31, and correspondingly the isolation rib 31 is provided with a rib positioning groove on the inner wall of the clamp positioning mechanism 5. When the union pipe connecting pipe 41 is docked with the second pipe 2 and installed, the isolation rib 31 is inserted into the rib positioning groove. Then the clamp positioning mechanism 5 is locked, thereby preventing the inner connecting pipe 3 from wandering in the second pipeline 2 due to the internal pressure of the pipe, and realizing the axial positioning and fixing of the union pipe 4 and the second pipeline 2 at the same time.

As shown in Figure 4, the outer peripheral wall of the butt end of the second pipeline 2 is respectively provided with a second pipeline flange 21; corresponding to the second pipeline flange 21, a second positioning recess is provided on the inner wall of the clamp positioning mechanism 5 Groove, so that when the union pipe connecting pipe 41 is docked with the second pipe 2, the flange 21 of the second pipe is inserted into the second positioning groove, and locked by the clamp positioning mechanism 5 so that The axial positioning and fixed connection between the union pipe 4 and the second pipeline 2 is realized.

As shown in FIG. 3 and FIG. 4 , in this embodiment, the first positioning groove, rib positioning groove and second positioning groove provided on the clamp positioning mechanism 5 are combined and processed into the same positioning groove 51 .

As shown in Fig. 3 and Fig. 4, the hoop positioning mechanism 5 is an annular hoop sleeve, which is composed of two hoop pieces 52, and the hoop pieces 52 are connected by detachable buckles.

As shown in Figure 4, when the pipeline is connected and installed, first insert one end of the inner connecting pipe 3 into the union connecting pipe 41, and then insert the other end of the inner connecting pipe 3 into the second pipeline 2, The flange 42 of the connecting pipe and the flange 21 of the second pipe are respectively abutted against the two sides of the isolation rib 31, and then the hoop positioning mechanism 5 is clamped at the docking port of the above-mentioned union pipe 4 and the second pipe 2, and the connecting pipe The flange 42 , the isolation rib 31 and the flange 21 of the second pipe are embedded in the positioning groove 51 , and the two clips 52 are snapped together and locked, so that the union 4 and the second pipe 2 are positioned and fixed in the axial direction. Next, insert the union end of the union pipe 4 into the first pipe 1 so that the union end of the union pipe 4 is sealed with the first pipe 1; The length of the required connecting pipeline is used to adjust the length of the union end of the union pipe 4 inserted into the first pipe 1, so as to realize the direct bare-hand installation of the first pipe 1 and the second pipe 2 according to the actual needs of the site. The union pipe 4 is equivalent to An adjustable short connecting pipe for connecting the first pipe 1 and the second pipe 2 . Furthermore, the connection between the pipes can be realized by hand without any installation tools and on-site processing procedures. When it is necessary to maintain the pipeline, it is convenient to remove the pipeline connection device, and the connection device can also be used repeatedly, thereby saving cost and avoiding waste.

Embodiment two

As shown in Figure 5, the difference from Embodiment 1 is that three installation grooves 40 are provided on the outer wall of the union pipe 4. A first pipeline flange 11 is set on the outer peripheral wall of the butt joint end of the first pipeline 1; the metal pipeline connection device is also provided with a clamp 8, and the inner wall of the clamp 8 corresponds to the first pipeline flange 11. The first positioning groove 81 is provided with a fixed flange 80 corresponding to the installation groove 40 on the inner wall of the clamp 8; when the union pipe 4 is connected to the first pipeline 1, it can be connected with the first pipeline 1 on site. The length requirements of the connecting pipes are required between the second pipes 2, and one of the installation grooves 40 is selected for the connection end of the first pipe 1, and then the first pipe 1 and the union pipe 4 are positioned and connected together with the clamp 8, wherein the first pipe 1 A pipe flange 11 is inserted into the first positioning groove 81 , and the fixing flange 80 is snapped into one of the mounting grooves 40 . The connection structure between the first pipe 1 and the union pipe 4 is made more stable.

The above embodiments are only specific descriptions of the preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. All other deformations and modifications that do not deviate from the spirit of the present utility model are understandably included in the protection scope of the present utility model.

Claims (10)

1. A metal pipe connection device, comprising a first pipe and a second pipe, characterized in that it also includes a union pipe, an inner connecting pipe and a hoop positioning mechanism; the pipe diameter of the union end of the union pipe is smaller than that of the first pipe. The pipe inner diameter of a pipe, and the union end of the union pipe is inserted into the first pipeline so that the union end of the union pipe seals butt joint with the first pipe; the positioning end of the union pipe is connected by a union pipe The inner diameter of the connecting pipe of the union pipe is larger than the inner diameter of the union pipe; the outer diameter of the inner connecting pipe is smaller than the inner diameter of the connecting pipe of the union pipe and the inner diameter of the second pipeline, and the inner diameter of the second pipe passes through the inner pipe The two ends of the connecting pipe are respectively inserted into the connecting pipe of the union pipe and the second pipe so that the connecting pipe of the union pipe is sealed butted with the second pipe, and the clamp positioning mechanism connects the connecting pipe of the union pipe to the second pipe. The two pipelines are axially positioned and fixedly connected. 2. The metal pipeline connection device according to claim 1, characterized in that, a first sealing ring is installed between the outer wall of the union end of the union pipe and the inner wall of the first pipeline, and by means of the first seal The ring realizes the sealed connection between the union and the first pipe. 3. The metal pipe connection device according to claim 2, characterized in that, the outer wall of the telescopic tube of the union is provided with a union sealing ring groove, and the first sealing ring is installed on the joint sealing ring inside the groove. 4. The metal pipe connection device according to claim 1, characterized in that, the outer peripheral wall of the butt joint end of the union pipe connection pipe is provided with a connecting pipe flange; corresponding to the connecting pipe flange, on the inner wall of the clamp positioning mechanism A first positioning groove is provided, so that when the connecting pipe of the union pipe is butted and installed with the second pipe, the flange of the connecting pipe is inserted into the first positioning groove. 5. The connecting device for metal pipes according to claim 1, characterized in that, the outer peripheral wall of the butt end of the second pipe is provided with a second pipe flange; corresponding to the second pipe flange, in the clamp positioning mechanism The inner wall is provided with a second positioning groove, so that when the union pipe connecting pipe is docked with the second pipe, the flange of the second pipe is inserted into the second positioning groove. 6. The metal pipe connection device according to claim 1, characterized in that a sealing ring is respectively installed between the outer wall of the inner connecting pipe, the inner wall of the union pipe connecting pipe and the inner wall of the second pipe, The sealing connection between the inner connecting pipe, the union pipe connecting pipe and the second pipe is realized by means of the sealing ring. 7. The metal pipe connection device according to claim 6, wherein the outer wall of the inner connecting pipe is provided with a sealing ring groove, and the sealing ring is installed in the sealing ring groove. 8. The metal pipe connection device according to claim 1, wherein at least one isolating rib is provided on the outer wall of the inner connecting pipe, and a convex rib is provided on the inner wall of the clamp positioning mechanism corresponding to the isolating rib. Rib positioning groove. 9. The metal pipe connection device according to claim 1, wherein more than one installation groove is provided on the outer wall of the union pipe. 10. The metal pipe connection device according to claim 9, characterized in that, a first pipe flange is provided on the outer peripheral wall of the butt end of the first pipe; the metal pipe connection device is also provided with a hoop, The inner wall of the clamp is provided with a first positioning groove corresponding to the flange of the first pipe, and a fixed flange is provided on the inner wall of the clamp corresponding to the installation groove; when the union is connected to the first pipe, the The first pipe flange is inserted into the first positioning groove, and the fixing flange is snapped into one of the installation grooves.