CN214789573U

CN214789573U - Anti-leakage drinking water pipeline

Info

Publication number: CN214789573U
Application number: CN202120364945.7U
Authority: CN
Inventors: 郑英国; 崔满强; 张泽野; 秦杰
Original assignee: Cangzhou Water Conservancy Survey Planning And Design Institute Co ltd
Current assignee: Cangzhou Water Conservancy Survey Planning And Design Institute Co ltd
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-11-19
Anticipated expiration: 2031-02-09

Abstract

The application relates to the technical field of drinking water pipelines, in particular to a leakage-proof drinking water pipeline which comprises a plurality of pipe bodies arranged at intervals, sealing rings arranged in gaps at the joints of two adjacent pipe bodies and a secondary sealing device sleeved at the joints of the two adjacent pipe bodies; the secondary sealing device comprises two sealing shells which are detachably connected and a sealing gasket arranged at the joint of the two sealing shells, and waterproof sealing glue is filled in the sealing shells. This application has the advantage that can reduce the leakage of drinking water pipeline use.

Description

Anti-leakage drinking water pipeline

Technical Field

The utility model belongs to the technical field of the technique of pipeline for drinking water and specifically relates to a prevent pipeline for drinking water of leakage.

Background

At present, people are more and more in demand for water resources, and the water resources that can supply people to drink are reducing gradually, among the correlation technique, usually with multistage water pipe end to end welding, the whole water supply pipe of form.

With respect to the related art among the above, the inventors consider that there is a defect that the drinking water pipe is easily leaked.

SUMMERY OF THE UTILITY MODEL

In order to reduce the leakage of drinking water pipeline use, this application provides a pipeline for drinking water of preventing leaking.

The application provides a prevent pipeline for drinking water of leakage adopts following technical scheme:

a leakproof pipeline for drinking water comprises a plurality of pipe bodies arranged at intervals, a sealing ring arranged in a gap at the joint of two adjacent pipe bodies and a secondary sealing device sleeved at the joint of the two adjacent pipe bodies;

the secondary sealing device comprises two sealing shells which are detachably connected and a sealing gasket arranged at the joint of the two sealing shells, and waterproof sealing glue is filled in the sealing shells.

Through adopting above-mentioned technical scheme, end to end interconnect between the body still is provided with the sealing washer in the junction to the second grade sealing device has been established to the cover, prevents that the body corrosion from perforating and leading to the body to take place to leak, and still packs in the semi-sealed shell and have waterproof sealed glue, can prevent that external moisture from causing the influence to the junction of body in getting into second grade sealing device.

Optionally, the connection mode between two adjacent pipe bodies is a clamping and pressing connection.

Through adopting above-mentioned technical scheme, the card pressure formula is connected and is compared in traditional welded connection mode and more be difficult for the corrosion damage, need adopt professional card to press the card of instrument to the junction of body to carry out rigidity mechanical connection simultaneously during the construction, makes the connection between the body more firm. In addition, when the sealing ring is extruded, the radial contraction can be generated, and then the pipe body is held tightly, so that the sealing effect is achieved. In addition, the pipe body can also play a role in pulling resistance while being subjected to shrinkage deformation, so that the section of the joint of the pipe body forms a hexagonal shape, the water leakage caused by rotation in use is prevented, and the anti-rotation effect is played.

Optionally, a gap at the joint of the two adjacent pipe bodies is filled with sealant.

Through adopting above-mentioned technical scheme, fill sealed glue in the gap to the body junction, the leakproofness that enables the body junction is better, more can prevent to leak.

Optionally, the surface of the pipe body is provided with an insulating anticorrosive layer.

Through adopting above-mentioned technical scheme, when damaged electric wire contacted the body surface on, lead to the body surface to take place intercrystalline corrosion and pitting easily. Therefore, the insulating anticorrosive layer can avoid direct contact between the damaged electric wire and the surface, and can prevent the surface of the pipe body from being corroded by acid rain outdoors, thereby preventing leakage.

Optionally, the cross section of the sealing ring is rectangular.

By adopting the technical scheme, the sealing ring with the rectangular cross section can receive pre-contact pressure when being installed, so that the binding surface of the sealing ring has radial and axial sealing performance, the sealing performance is similar to that of liquid with high surface tension, the pressure received by the sealing ring can be uniformly transmitted to all directions, the reciprocating movement of the sealing ring can be reduced, the sealing performance is improved, and water leakage is prevented.

Optionally, a groove for placing a sealing ring is formed in the position, close to the two ends, of the outer side surface of the pipe body along the circumferential direction.

Through adopting above-mentioned technical scheme, the recess can be used for the part of the sealing washer after the chucking deformation, takes place axial when avoiding the sealing washer installation and slides, influences the installation. In addition, the arrangement of the groove can enable the connection between the sealing ring and the pipe body to be tighter, and the leakage-proof performance is better.

Optionally, the two sealing shells are connected by bolts distributed along the edge at intervals.

Through adopting above-mentioned technical scheme, the bolt of interval distribution makes and forms inseparable connection between two sealed casings, is similar to flange joint, makes whole second grade sealing device's erection joint more firm, and prevents that leakage performance is good.

Optionally, the two ends of the sealing shell are both provided with water-swelling water stops.

Through adopting above-mentioned technical scheme, when external water when to the internal seepage of sealed casing, at first can touch meet water-swelling waterstop, meet water-swelling waterstop and can the volume increase after absorbing water, further reduce the clearance between sealed casing and the body lateral surface, improve the leakproofness.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the pipe bodies are connected end to end, the sealing rings are further arranged at the joints, the secondary sealing devices are sleeved on the pipe bodies, the pipe bodies are prevented from being corroded and perforated and causing leakage of the pipe bodies, and waterproof sealant is filled in the semi-sealing shells, so that external moisture can be prevented from entering the secondary sealing devices to influence the joints of the pipe bodies;

2. the insulating corrosion-resistant layer in this application can avoid taking place because of on damaged electric wire contacts the body surface, leads to the circumstances of body surface intercrystalline corrosion and pitting corrosion. Therefore, the insulating anticorrosive layer can avoid direct contact between the damaged electric wire and the surface, and can also prevent the surface of the pipe body from being corroded by acid rain outdoors to further cause leakage;

3. this application two total sealed casing interval distribution's bolt makes and forms inseparable relation of connection between two sealed casings, is similar to flange joint, makes whole second grade sealing device's erection joint more firm, and prevents that leakage performance is good.

Drawings

Fig. 1 is a schematic view of an overall structure of a leak-proof drinking water pipe disclosed in an embodiment of the present application.

Fig. 2 is a sectional view taken for showing the internal structure of the secondary seal device in the embodiment of the present application.

Fig. 3 is a partially enlarged view of a portion a in fig. 1.

Description of reference numerals: 11. a pipe body; 21. a seal ring; 31. a secondary sealing device; 311. sealing the housing; 312. a gasket; 111. a groove; 3111. water stop belt capable of expanding when meeting water.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

It should be understood that, in the related art, the connection method adopted for the drinking water pipeline is generally welding, and as the service life is prolonged, the pipeline is affected by damp corrosion and the water flow in the pipeline is washed, holes are easily generated at the connection joints of the pipeline, and the pipeline leaks water. For the condition that improves the easy emergence phenomenon of leaking of pipeline, this application provides a pipeline for drinking water of preventing leaking.

The embodiment of the application discloses a prevent pipeline for drinking water of leakage. Referring to fig. 1 and 2, a leakage-proof drinking water pipe includes a pipe body 11, a packing 21, and a secondary sealing device 31. Wherein, a plurality of tube bodies 11 are connected end to form a water supply pipeline for drinking water, the sealing ring 21 is arranged in a connecting gap of two adjacent tube bodies 11, and the second-stage sealing device 31 is sleeved at the connecting part of the two adjacent tube bodies 11.

Referring to fig. 1, the tube 11 may be made of 304 stainless steel tubes, and although the tube diameters of the two ends of each tube 11 are different, the tube 11 has a smaller diameter end. When two adjacent pipe bodies 11 are connected, firstly, the outer side surface of the end with the smaller pipe diameter of the pipe body 11 is sleeved with the sealing ring 21, and then the end with the smaller pipe diameter of the pipe body 11 is inserted into the end with the larger pipe diameter of the other pipe body 11.

Referring to fig. 2, it should be understood that the performance and installation quality of the sealing ring 21 in the drinking water pipeline are directly related to the success and service life of the clamping connection of the thin-wall stainless steel pipe. The sealing ring 21 may be an annular body made of rubber, the sealing ring 21 is sleeved on the pipe body 11, and when two adjacent pipe bodies 11 are connected, the sealing ring 21 is located in a connecting gap of the pipe bodies 11 and deforms to play a sealing role.

Referring to fig. 1 and 3, the secondary sealing device 31 is used for performing secondary sealing protection on a joint in a pipeline connected and sealed to prevent water leakage. The secondary seal device 31 includes two seal housings 311 detachably connected and a gasket 312 provided at the joint of the two seal housings 311.

The two sealing shells 311 are detachably connected, a tubular structure can be formed, the hollow part in the tubular structure is used for placing the connecting part between the two pipe bodies 11, and finally, the sealing shells 311 are filled with waterproof sealant.

After constructors complete the end-to-end connection of the pipe bodies 11 and the installation of the sealing rings 21, the second-stage sealing device 31 is installed at the joint of the two pipe bodies 11, and the drinking water pipeline after construction is better in sealing performance and not prone to water leakage.

To make the connection between two adjacent tubular bodies 11 more secure. Referring to fig. 2, the adjacent pipe bodies 11 may be connected by a clamping and pressing method, that is, one end of one pipe body 11 is inserted into the socket of the other pipe body 11 to a position of the positioning step, and then a clamping and pressing part at the connection position of the pipe bodies 11 is rigidly and mechanically connected by a special clamping and pressing tool. The sealing ring 21 is compressed radially to hold the pipe body 11, thereby performing a sealing function. In addition, the pipe body 11 has the anti-drawing function while being shrunk and deformed, the section of the pipe body forms a hexagonal shape, the water leakage caused by rotation in use is prevented, and the anti-rotation function is realized, so that the sealed connection of the drinking water pipeline formed by the pipe body 11 is effectively realized.

In order to avoid the influence of mechanical extrusion deformation, the sealing performance is affected by the gap generated at the joint of the pipe body 11. And sealant is filled in the gap at the joint of every two adjacent pipe bodies 11, so that the gap is filled and sealed.

In addition, in order to prevent the pipe body 11 from being corroded to damage when used outdoors or used in places with wires, an insulating anticorrosive layer is arranged on the surface of the pipe body 11, and the insulating anticorrosive layer can be formed by spraying a water-based inorganic coating ceramic coating on the surface of the pipe body 11, wherein the water-based inorganic coating ceramic coating is sprayed on the surface of the pipe body 11, takes a nano inorganic compound as a main component and takes water as a dispersoid, and is cured by low-temperature heating after being sprayed on the surface of the pipe body 11 to form an insulating coating film with similar performance to high temperature. The insulating anticorrosive coating on the surface of the pipe body 11 can prevent the situation that the pipe body 11 is perforated and leaked after the damaged electric wire is contacted with the pipe body 11.

In order to further improve the sealing performance, the cross section of the sealing ring 21 is rectangular, that is, the sealing ring 21 is a rectangular sealing ring, and the pre-contact pressure applied to the sealing ring 21 during installation enables the radial and axial sealing performance of the joint surface of the sealing ring 21 to be similar to that of liquid with high surface tension, so that the pressure can be uniformly transmitted to all directions, the reciprocating movement of the sealing ring can be reduced, the working reliability and the sealing performance are improved, and the service life is prolonged.

Further, in order to make the connection between the outer side surface of the pipe body 11 and the sealing ring 21 tighter, referring to fig. 2, a groove 111 for placing the sealing ring 21 is formed in the pipe body 11 sleeved with the sealing ring 21 along the circumferential direction, so that a part of the sealing ring 21 is clamped in the groove 111, and the sealing ring 21 is prevented from sliding axially, which affects the installation stability and the sealing performance.

To facilitate and secure the detachment of the two seal housings 311 to improve the sealing property. The two sealing shells 311 are fixedly assembled through bolts distributed along the edge at intervals, so that the relation similar to flange connection is formed between the two sealing shells 31, the connection is more stable, and the sealing performance is better.

Further, to improve the sealing performance of the entire secondary sealing device 31 and to prevent moisture from penetrating into the secondary sealing device 31. Referring to fig. 2, a rain water swelling seal 3111 is wound around both ends of the seal case 311, and the water swelling seal 3111 and the seal case 311 may be connected by adhesion.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A leak-proof drinking water conduit, comprising: the sealing device comprises a plurality of pipe bodies (11) arranged at intervals, a sealing ring (21) arranged in a gap at the joint of two adjacent pipe bodies (11) and a secondary sealing device (31) sleeved at the joint of the two adjacent pipe bodies (11);

the second-stage sealing device (31) comprises two sealing shells (311) which are detachably connected and a sealing gasket (312) arranged at the joint of the two sealing shells (311), and waterproof sealing glue is filled in the sealing shells (311).

2. A leak resistant drinking conduit as set forth in claim 1, wherein: the connection mode between two adjacent pipe bodies (11) is a clamping and pressing connection mode.

3. A leak resistant drinking conduit as set forth in claim 2, wherein: and a gap at the joint of the two adjacent pipe bodies (11) is filled with sealant.

4. A leak resistant drinking conduit as set forth in claim 1, wherein: and an insulating anticorrosive layer is arranged on the surface of the pipe body (11).

5. A leak resistant drinking conduit as set forth in claim 1, wherein: the cross section of the sealing ring (21) is rectangular.

6. A leak resistant drinking conduit as set forth in claim 3 wherein: the outer side surface of the pipe body (11) is provided with a groove (111) used for placing a sealing ring (21) at the position close to the two ends along the circumferential direction.

7. A leak resistant drinking conduit as set forth in claim 1, wherein: the two sealing shells (311) are connected by bolts distributed along the edge at intervals.

8. A leak resistant drinking conduit as set forth in claim 1, wherein: and water swelling water stops (3111) are arranged at two ends of the sealing shell (311).