Sealing reinforced cold water meter

Abstract

The utility model relates to a sealing reinforced cold water meter. The sealing reinforced cold water meter is technically characterized in that a first reinforced sealing body is clamped between the inner wall of an external pipeline on a water inlet side and a first conical surface of a first convex annular insertion column; the second reinforced sealing body is clamped between the second conical surface of the second convex annular insertion column and the inner wall of the water outlet pipeline; annular grooves are formed in the sides, facing the water flow coming direction, of the first reinforcing sealing body and the second reinforcing sealing body; a first sealing ring and a second sealing ring are arranged on the rear portions of the outer circumferential faces of the first outwards-protruding type annular inserting column and the second outwards-protruding type annular inserting column respectively. The utility model solves the problem of poor sealing effect of the cold water meter, obviously improves the sealing performance, and ensures the normal operation of the cold water meter.

Description

Technical Field

[0001] The utility model relates to the technical field of cold water meters, and particularly relates to a cold water meter with enhanced sealing performance. Background Art

[0002] A cold water meter is an instrument used to measure the cold water flow rate in a pipeline. It has a wide range of applications and is mostly made of metals such as iron. During the assembly of a cold water meter, a flange connection structure is required, and a sealing ring is used during docking to improve the sealing performance of the cold water meter. However, the sealing ring is usually a flat ring structure, which has problems such as water seepage and poor sealing effect. Content of the Utility Model

[0003] The purpose of the utility model is to provide a cold water meter with enhanced sealing performance that has a reasonable structure and reliable use, solve the problem of poor sealing effect of the cold water meter, significantly improve the sealing performance, and ensure the normal operation of the cold water meter.

[0004] The technical solution of the utility model is as follows:

[0005] A cold water meter with enhanced sealing performance includes a cold water meter body, a housing, a water inlet pipe and a water outlet pipe provided on both sides of the housing. The technical key points are: a first flange is provided at the end of the water inlet pipe, and a first outwardly convex annular plug is provided on the inner ring surface of the first flange. A first tapered surface that is narrow at the front and wide at the rear is provided on the outer peripheral surface of the first outwardly convex annular plug. A first enhanced sealing body is fixed on the first tapered surface. A plurality of first annular sealing grooves are provided on the rear part of the outer peripheral surface of the first outwardly convex annular plug. A first sealing ring is provided in the first annular sealing groove. The first flange is connected to the flange of the external pipeline on the water inlet side. The first enhanced sealing body is clamped between the inner wall of the external pipeline on the water inlet side and the first tapered surface.

[0006] A second flange is provided at the end of the water outlet pipe, and the second flange is connected to the flange of the external pipeline on the water outlet side. A second outwardly convex annular plug is provided on the inner ring surface of the flange of the external pipeline on the water outlet side. A second tapered surface that is narrow at the front and wide at the rear is provided on the outer peripheral surface of the second outwardly convex annular plug. A second enhanced sealing body is fixed on the second tapered surface. A plurality of second annular sealing grooves are provided on the rear part of the outer peripheral surface of the second outwardly convex annular plug. A second sealing ring is provided in the second annular sealing groove. The second enhanced sealing body is clamped between the second tapered surface and the inner wall of the water outlet pipe.

[0007] Annular grooves are provided on the side of the first enhanced sealing body and the second enhanced sealing body facing the water flow direction.

[0008] For the above-mentioned cold water meter with enhanced sealing performance, a first sealing gasket is provided between the opposing surfaces of the first flange and the flange of the external pipeline on the water inlet side, and a second sealing gasket is provided between the opposing surfaces of the second flange and the flange of the external pipeline on the water outlet side.

[0009] For the above-mentioned sealed and strengthened cold water meter, a first support groove is provided on the inner surface of the front end of the first outwardly convex annular insertion post, and a first support clamping ring is provided in the first support groove. A second support groove is provided on the inner surface of the front end of the second outwardly convex annular insertion post, and a second support clamping ring is provided in the second support groove.

[0010] For the above-mentioned sealed and strengthened cold water meter, the cold water meter body is supported and fixed above the outer shell by the upper flange. A sealing gasket is provided between the lower surface of the upper flange and the upper edge of the outer shell. A third strengthened sealing body is provided on the inner edge of the sealing gasket. The third strengthened sealing body is clamped between the cold water meter body and the inner wall of the outer shell. The third strengthened sealing body is provided with an annular groove facing the inner side of the outer shell.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1. The water inlet pipeline and the externally connected pipeline on the water inlet side use the first outwardly convex annular insertion post and the first strengthened sealing body, etc. to achieve strengthened sealing at the docking part. The water outlet pipeline and the externally connected pipeline on the water outlet side use the second outwardly convex annular insertion post and the second strengthened sealing body, etc. to achieve strengthened sealing at the docking part. The first strengthened sealing body and the second strengthened sealing body are provided with annular grooves facing the water flow incoming side. When the water flow passes through, the water flow enters the annular grooves and presses on the inner and outer side walls of the annular grooves, so that the inner and outer side walls of the annular grooves of the first strengthened sealing body are closely connected with the water inlet side externally connected pipeline and the first conical surface, and the inner and outer side walls of the annular grooves of the second strengthened sealing body are closely connected with the water outlet pipeline and the second conical surface, realizing the strengthened sealing effect. Solve the problem of poor sealing effect of the cold water meter, significantly improve the sealing performance, and ensure the normal operation of the cold water meter.

[0013] 2. The first support clamping ring and the second support clamping ring are used to strengthen the use strength of the front end of the first outwardly convex annular insertion post and the front end of the second outwardly convex annular insertion post, ensure the close connection with the first strengthened sealing body and the second strengthened sealing body, and thus ensure the sealing performance.

[0014] 3. The first sealing ring in the first annular sealing groove and the second sealing ring in the second annular sealing groove play a secondary sealing role, further enhancing the sealing performance.

[0015] 4. The first sealing gasket and the second sealing gasket play a tertiary sealing role, further enhancing the sealing performance. Description of the Drawings

[0016] Figure 1 is a structural schematic diagram of the present utility model;

[0017] Figure 2 is Figure 1 the enlarged view of part A in

[0018] Figure 3 isFigure 1 Enlarged view of part B.

[0019] In the figure: 1. Cold water meter body, 2. Outer shell, 3. Sealing gasket, 4. Third enhanced seal body, 5. Inlet pipeline, 6. Outlet pipeline, 7. First flange, 8. Flange, 9. First sealing ring, 10. Inlet side external connecting pipeline, 11. First enhanced seal body, 12. First sealing pad, 13. First support clamping ring, 14. First outward convex annular insertion post, 15. Second flange, 16. Flange, 17. Outlet side external connecting pipeline, 18. Second sealing pad, 19. Second outward convex annular insertion post, 20. Second sealing ring, 21. Second enhanced seal body, 22. Second support clamping ring. Detailed implementation mode

[0020] The present utility model will be described in detail according to the attached drawings of the specification.

[0021] As Figures 1 to 3 shown, the enhanced seal type cold water meter includes a cold water meter body 1, an outer shell 2, an inlet pipeline 5 and an outlet pipeline 6 arranged on both sides of the outer shell 2.

[0022] Among them, a first flange 7 is provided at the end of the inlet pipeline 5, and a first outward convex annular insertion post 14 is provided on the inner ring surface of the first flange 7. A first tapered surface with a narrow front and a wide rear is provided on the front part of the outer peripheral surface of the first outward convex annular insertion post 14. A first enhanced seal body 11 is fixed on the first tapered surface. A plurality of first annular seal grooves are provided on the rear part of the outer peripheral surface of the first outward convex annular insertion post 14. A first sealing ring 9 is provided in the first annular seal groove. The first flange 7 is connected to the flange 8 of the inlet side external connecting pipeline 10. The first enhanced seal body 11 is clamped between the inner wall of the inlet side external connecting pipeline 10 and the first tapered surface. A second flange 15 is provided at the end of the outlet pipeline 6, and the second flange 15 is used to connect with the flange 16 of the outlet side external connecting pipeline 17. A second outward convex annular insertion post 19 is provided on the inner ring surface of the flange 16 of the outlet side external connecting pipeline 17. A second tapered surface with a narrow front and a wide rear is provided on the front part of the outer peripheral surface of the second outward convex annular insertion post 19. A second enhanced seal body 21 is fixed on the second tapered surface. A plurality of second annular seal grooves are provided on the rear part of the outer peripheral surface of the second outward convex annular insertion post 19. A second sealing ring 20 is provided in the second annular seal groove. The second enhanced seal body 21 is clamped between the second tapered surface and the inner wall of the outlet pipeline 6. Annular grooves are provided on the sides of the first enhanced seal body 11 and the second enhanced seal body 21 facing the water flow direction.

[0023] In this embodiment, a first gasket 12 is provided between the opposing surfaces of the first flange 7 and the flange 8 of the external pipeline 10 on the water inlet side, and a second gasket 18 is provided between the opposing surfaces of the second flange 15 and the flange 16 of the external pipeline 17 on the water outlet side. A first support groove is provided on the inner surface of the front end of the first outwardly convex annular plug post 14, and a first support snap ring 13 is provided in the first support groove. A second support groove is provided on the inner surface of the front end of the second outwardly convex annular plug post 19, and a second support snap ring 22 is provided in the second support groove. The cold water meter body 1 is supported and fixed above the housing 2 by an upper flange, and a sealing gasket 3 is provided between the lower surface of the upper flange and the upper edge of the housing 2. A third enhanced sealing body 4 is provided on the inner edge of the sealing gasket 3, and the third enhanced sealing body 4 is clamped between the cold water meter body 1 and the inner wall of the housing 2. The third enhanced sealing body 4 is provided with an annular groove facing the inner side of the housing.

[0024] Working principle:

[0025] When water flows through, the water enters the annular grooves of the first enhanced sealing body 11 and the second enhanced sealing body 21 respectively and exerts pressure on the inner and outer side walls of the annular grooves, so that the inner and outer side walls of the annular groove of the first enhanced sealing body 11 are in close contact with the external pipeline 10 on the water inlet side and the first conical surface, and the inner and outer side walls of the annular groove of the second enhanced sealing body 21 are in close contact with the water outlet pipeline 6 and the second conical surface, realizing the enhanced sealing effect. The higher the water pressure, the better the sealing efficiency.

[0026] The above has described the embodiments of the present invention in detail, but the above content is only the preferred embodiment of the present invention and cannot be considered as limiting the implementation scope of the present invention. Any equal changes and improvements made within the scope of the creation of the present invention shall still fall within the scope covered by this patent.

Claims

1. A sealed and strengthened cold water meter, comprising a cold water meter body, a housing, a water inlet pipeline and a water outlet pipeline provided on both sides of the housing, characterized in that: The end of the inlet pipeline is provided with a first flange, and a first outwardly convex annular plug is provided at the inner ring surface of the first flange. The front part of the outer peripheral surface of the first outwardly convex annular plug is provided with a first tapered surface that is narrow at the front and wide at the rear. A first enhanced sealing body is fixed on the first tapered surface. The rear part of the outer peripheral surface of the first outwardly convex annular plug is provided with multiple circles of first annular sealing grooves, and a first sealing ring is arranged in the first annular sealing grooves. The first flange is connected to the flange of the external pipeline on the water inlet side, and the first enhanced sealing body is clamped between the inner wall of the external pipeline on the water inlet side and the first tapered surface; The end of the outlet pipeline is provided with a second flange, and the second flange is connected to the flange of the external pipeline on the water outlet side. A second outwardly convex annular plug is provided at the inner ring surface of the flange of the external pipeline on the water outlet side. The front part of the outer peripheral surface of the second outwardly convex annular plug is provided with a second tapered surface that is narrow at the front and wide at the rear. A second enhanced sealing body is fixed on the second tapered surface. The rear part of the outer peripheral surface of the second outwardly convex annular plug is provided with multiple circles of second annular sealing grooves, and a second sealing ring is arranged in the second annular sealing grooves. The second enhanced sealing body is clamped between the second tapered surface and the inner wall of the outlet pipeline; The first enhanced sealing body and the second enhanced sealing body are provided with annular grooves on the side facing the water flow direction.

2. The sealed and strengthened cold water meter according to claim 1, characterized in that: A first sealing gasket is provided between the opposite surfaces of the first flange and the flange of the external pipeline on the water inlet side, and a second sealing gasket is provided between the opposite surfaces of the second flange and the flange of the external pipeline on the water outlet side.

3. The sealed and strengthened cold water meter according to claim 1, wherein: The inner surface of the front end of the first outwardly convex annular plug is provided with a first support groove, and a first support snap ring is arranged in the first support groove. The inner surface of the front end of the second outwardly convex annular plug is provided with a second support groove, and a second support snap ring is arranged in the second support groove.

4. The sealed and strengthened cold water meter according to claim 1, characterized in that: The cold water meter body is supported and fixed above the housing by an upper flange plate. A sealing gasket is provided between the lower surface of the upper flange plate and the upper edge of the housing. The inner edge of the sealing gasket is provided with a third enhanced sealing body. The third enhanced sealing body is clamped between the cold water meter body and the inner wall of the housing. The third enhanced sealing body is provided with an annular groove facing the inner side of the housing.

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