PE pipe connecting structure with good sealing performance

Abstract

The utility model discloses a PE pipe connecting structure with good sealing performance, and relates to the technical field of PE pipe connection. A PE pipe connecting structure good in sealing performance comprises a pipe body and a connecting piece. The pipe bodies can be arranged on the two sides of the connecting piece in a sleeving mode. Connecting pipes are arranged at the two ends of the connecting piece; the connecting pipe penetrates through the connecting piece; the connecting pipe is arranged at the central position of the connecting piece; the connecting pipe is sleeved with a sealing plug. The sealing plug is detachably connected with the connecting pipe; the sealing plug is made of silica gel; the sealing plug adopts a multi-layer design; the detachable sealing plug is arranged, sealing is carried out through the sealing plug when the pipe body is arranged on the connecting pipe in a sleeving mode, the sealing effect is improved through the multi-layer silica gel design, and the size of the sealing plug can be conveniently replaced and adjusted according to PE pipes of different sizes in a detachable connecting mode; and therefore, proper sealing plugs can be selected according to PE pipes of different sizes, adjustment is convenient, and the applicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PE pipe connection, in particular to a PE pipe connection structure with good sealing performance. Background Art

[0002] PE pipe (polyethylene pipe) is a commonly used plastic pipe material, usually used in water supply pipes, drainage pipes, natural gas pipes, chemical pipes, underground drainage systems, irrigation pipes, and power and communication pipes. PE pipe has the advantages of light weight, corrosion resistance, easy installation, and low cost. When connecting PE pipes, the sealing issue needs to be considered.

[0003] For example, the Chinese utility model patent with announcement number CN202073505U discloses a threaded connection structure for oil casing with good sealing performance. The device adopts a single-stage metal interference seal and a single-stage torque shoulder. The threaded connection structure of the oil casing includes a pipe body and a coupling. The end of the pipe body has an external thread, and the inner surface of the coupling is provided with an internal thread. The outer side of the inner main sealing surface of the coupling is also provided with an auxiliary inner sealing cone surface and an inner cylindrical section, and the inner side of the outer main sealing surface of the pipe body is also provided with an auxiliary outer sealing cone surface and an outer cylindrical section; a fitting gap is provided between the inner cylindrical section and the outer cylindrical section;

[0004] The above solution has the following problems: the device is accurately positioned when in use; the influence of shoulder deformation on the main sealing surface is reduced; the sealing reliability of the threaded connection is improved; and the adverse effect of thread grease accumulation on the sealing contact pressure is reduced. However, when in use, the device connects pipes through threads and cannot ensure the stability of pipe sealing. At the same time, when pipes of different sizes need to be connected, the device cannot meet the installation requirements and is not very applicable.

[0005] Therefore, we propose a PE pipe connection structure with good sealing performance to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a PE pipe connection structure with good sealing performance to solve the problems raised in the above background technology that the pipe connection structure on the market cannot ensure complete sealing and is inconvenient to connect pipes of different sizes.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a PE pipe connection structure with good sealing performance, comprising a pipe body and a connector; the pipe body can be sleeved on both sides of the connector; connecting pipes are provided at both ends of the connector; the connecting pipe passes through the connector; the connecting pipe is arranged at the center of the connector; a sealing plug is sleeved on the connecting pipe; the sealing plug is detachably connected to the connecting pipe; the sealing plug is made of silicone; the sealing plug adopts a multi-layer design; when the pipe body is installed at both ends of the connector, the pipe body is sleeved on the sealing plug.

[0008] The above technical solution can be used to seal the pipe body by using the sealing plug when it is sleeved on the connecting pipe. The multi-layer silicone design improves the sealing effect. The detachable connection method makes it easy to replace and adjust the size of the sealing plug according to the different sizes of PE pipes.

[0009] As an optimal technical solution of the present invention, mounting seats are provided on both sides of the connecting member; the mounting seat and the connecting member are connected through a connecting column; the two ends of the connecting column are fixedly connected to the mounting seat and the connecting member respectively; a fastening ring is provided on the outside of the mounting seat; the fastening ring is movably connected to the mounting seat.

[0010] By adopting the above technical solution, the pipe body sleeved on the connecting piece can be fastened by the fastening ring.

[0011] As an optimal technical solution of the present utility model, the fastening ring is an arc-shaped ring; the two ends of the fastening ring do not intersect; a snap ring is provided at the top position of the fastening ring; the snap ring is provided on the outside of the mounting seat; the snap ring is fixedly connected to the mounting seat; the lower end face of the fastening ring is fixedly connected to the snap ring; the upper end face of the fastening ring is engaged in the middle groove of the snap ring; the upper end of the fastening ring is movably connected to the snap ring.

[0012] By adopting the above technical solution, the clamping ring can be used to tighten the fastening ring while the upper end face of the fastening ring is pulled to shrink the fastening ring, so that the fastening ring fits the pipe body and is easy to fix.

[0013] As a preferred technical solution of the present invention, a locking buckle is provided at the movable connection between the fastening ring and the snap ring; the locking buckle is rotatably connected to the snap ring; and the locking buckle is provided on the inner side of the snap ring.

[0014] The above technical solution can prevent the fastening ring from falling off after being fastened by the locking buckle.

[0015] As a preferred technical solution of the present invention, the connecting pipe is symmetrically provided with two parts about the center of the connecting piece; the two parts of the connecting pipe are identical components.

[0016] The above technical solution can facilitate the connection of multiple pipelines through the connecting pipes at both ends of the connecting piece.

[0017] As a preferred technical solution of the present invention, a groove is provided on the mounting seat; the fastening ring is embedded in the groove body on the mounting seat; a slider is provided on the inner side of the fastening ring; and the slider is slidably connected to the mounting seat.

[0018] The above technical solution can ensure that the fastening ring is tightened as a whole by sliding the slider inside the mounting seat when the fastening ring is pulled.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The utility model is provided with a detachable sealing plug. When the pipe body is sleeved on the connecting pipe, the sealing plug is sealed. The multi-layer silicone design improves the sealing effect. The detachable connection method facilitates the replacement and adjustment of the size of the sealing plug according to the different sizes of PE pipes, so that the device can select the appropriate sealing plug according to the different sizes of PE pipes, which is convenient for adjustment and improves the applicability of the device.

[0021] 2. The utility model is provided with a fastening ring and a mounting seat. The fastening ring is pulled to fasten the connected pipe body. The fastening ring slides inside the mounting seat to ensure that the fastening ring shrinks evenly as a whole, so that the device achieves the best fastening effect and improves the stability of the connection between the pipe bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the main structure of the utility model when the tube body is not installed;

[0024] Figure 3 This is a side view structural diagram of the utility model;

[0025] Figure 4 This is a schematic cross-sectional view of the connection between the clamping ring and the fastening ring of the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the connecting piece of the utility model.

[0027] In the figure: 1. Tube body; 2. Connecting piece; 3. Sealing plug; 4. Connecting pipe; 5. Fastening ring; 6. Connecting column; 7. Mounting seat; 8. Slider; 9. Snap ring; 10. Locking buckle. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] See also Figure 1-5 The utility model provides a technical solution: a PE pipe connection structure with good sealing performance, including a pipe body 1 and a connecting piece 2; the pipe body 1 can be sleeved on both sides of the connecting piece 2; connecting pipes 4 are provided at both ends of the connecting piece 2; the connecting pipe 4 passes through the connecting piece 2; the connecting pipe 4 is arranged at the center position of the connecting piece 2; a sealing plug 3 is sleeved on the connecting pipe 4; the sealing plug 3 and the connecting pipe 4 are detachably connected; the sealing plug 3 is made of silicone; the sealing plug 3 adopts a multi-layer design; when the pipe body 1 is installed at both ends of the connecting piece 2, the pipe body 1 is sleeved on the sealing plug 3; first, a suitable sealing plug 3 is selected according to the size of the pipe body 1, and after the selection is completed, the sealing plug 3 is sleeved on the connecting pipes 4 at both ends of the connecting piece 2, and then the pipe body 1 is sleeved on the sealing plug 3. When the pipe body 1 is sleeved, the sealing plug 3 is forced to shrink, and while the sealing plug 3 fixes the pipe body 1, the connection between the pipe body 1 and the sealing plug 3 is sealed. The multi-layer design further improves the sealing performance.

[0030] Mounting seats 7 are provided on both sides of the connecting member 2; the mounting seats 7 and the connecting member 2 are connected through connecting columns 6; the two ends of the connecting column 6 are fixedly connected to the mounting seats 7 and the connecting member 2 respectively; a fastening ring 5 is provided on the outside of the mounting seat 7; the fastening ring 5 is movably connected to the mounting seat 7; the pipe body 1 is then fixed by the fastening ring 5, and the fastening ring 5 is positioned close to the middle of the pipe body 1 through the connecting column 6 to improve the fastening performance.

[0031] When the cam 7 is in the closed position, the cam 7 is in the closed position, and the cam 7 is in the closed position, so that the cam 7 is in the closed position and the cam 7 is in the closed position, and the cam 7 is in the closed position, so that the cam 7 is in the closed position and the cam 7 is in the closed position.

[0032] Working principle: When using a PE pipe connection structure with good sealing performance, first select a suitable sealing plug 3 according to the size of the pipe body 1. After the selection is completed, the sealing plug 3 is put on the connecting pipe 4 at both ends of the connecting piece 2, and then the pipe body 1 is put on the sealing plug 3. When the pipe body 1 is put on, the sealing plug 3 is forced to shrink. While the sealing plug 3 fixes the pipe body 1, the connection between the pipe body 1 and the sealing plug 3 is sealed. The multi-layer design further improves the sealing performance. The pipe body 1 is then fixed by the fastening ring 5. Pull the end face of the fastening ring 5 above the clamp 9. While pulling, the slider 8 on the inside of the fastening ring 5 slides in the slide groove inside the mounting seat 7, so that the fastening ring 5 shrinks as a whole to fix the pipe body 1. The locking buckle 10 prevents the fastening ring 5 from falling off on its own; the fastening ring 5 is positioned close to the middle of the pipe body 1 through the connecting column 6 to improve the fastening performance.

[0033] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A PE pipe connection structure with good sealing performance, comprising a pipe body (1) and a connector (2); the pipe body (1) can be sleeved on both sides of the connector (2); Its characteristics are: The connecting piece (2) is provided with connecting tubes (4) at both ends; the connecting tube (4) passes through the connecting piece (2); the connecting tube (4) is provided at the center of the connecting piece (2); a sealing plug (3) is sleeved on the connecting tube (4); the sealing plug (3) and the connecting tube (4) are detachably connected; the sealing plug (3) is made of silicone; the sealing plug (3) adopts a multi-layer design; when the tube body (1) is installed at both ends of the connecting piece (2), the tube body (1) is sleeved on the sealing plug (3); Mounting seats (7) are provided on both sides of the connecting member (2); the mounting seat (7) and the connecting member (2) are connected via a connecting column (6); both ends of the connecting column (6) are fixedly connected to the mounting seat (7) and the connecting member (2) respectively; a fastening ring (5) is provided on the outside of the mounting seat (7); the fastening ring (5) is movably connected to the mounting seat (7); The fastening ring (5) is an arc-shaped ring; the two ends of the fastening ring (5) do not intersect; a snap ring (9) is provided at the top of the fastening ring (5); the snap ring (9) is provided on the outside of the mounting seat (7); the snap ring (9) is fixedly connected to the mounting seat (7); the lower end face of the fastening ring (5) is fixedly connected to the snap ring (9); the upper end face of the fastening ring (5) is engaged in the middle groove of the snap ring (9); the upper end of the fastening ring (5) is movably connected to the snap ring (9); A locking buckle (10) is provided at the movable connection between the fastening ring (5) and the snap ring (9); the locking buckle (10) is rotatably connected to the snap ring (9); and the locking buckle (10) is provided on the inner side of the snap ring (9).

2. The PE pipe connection structure with good sealing performance according to claim 1, characterized in that: The connecting pipe (4) is provided with two parts symmetrically about the center of the connecting piece (2); the two parts of the connecting pipe (4) are identical components.

3. The PE pipe connection structure with good sealing performance according to claim 2, characterized in that: A groove is provided on the mounting seat (7); the fastening ring (5) is embedded in the groove body on the mounting seat (7); a slider (8) is provided on the inner side of the fastening ring (5); and the slider (8) is slidably connected to the mounting seat (7).

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