CN217382016U

CN217382016U - Connecting piece for water supply steel-plastic pipeline

Info

Publication number: CN217382016U
Application number: CN202220763789.6U
Authority: CN
Inventors: 邱加强; 史渊
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-04
Filing date: 2022-04-04
Publication date: 2022-09-06
Anticipated expiration: 2032-04-04

Abstract

The utility model discloses a plumbing connecting piece is moulded to feedwater steel, including first steel pipe and second metal pipeline, first steel pipe and second metal pipeline pass through cutting ferrule mechanism and connect, and cutting ferrule mechanism is including the joint body, a set of external screw thread, a set of convex nut, a set of concave nut and a set of cutting ferrule. The beneficial effects of the utility model are that, can carry out the cutting ferrule to first steel-plastic pipe and second metal pipeline through the cutting ferrule mechanism that is located between first steel-plastic pipe and the second metal pipeline and connect, during the connection, in the seal groove was gone into in the extrusion of inside seal circle, improved the leakproofness, outside convex nut and concave nut interlock can play the locking effect of wedge.

Description

Connecting piece for water supply steel-plastic pipeline

Technical Field

The utility model relates to a water supply engineering field specifically is a water supply steel-plastic pipeline connecting piece.

Background

The water supply and drainage engineering takes the social cycle of water as research content. The water crisis is a main restriction factor for the development of socioeconomic in China. The water crisis in China is marked by water resource shortage and water environment pollution. The water supply and drainage engineering is responsible for solving the water crisis in China, and covers the following professional fields of sustainable utilization and protection of water resources, social circulation of water, ecological function of water, water saving work, water quality and related high and new technologies thereof and the like.

The water supply steel-plastic pipeline is a water supply galvanized inner-plastic composite steel pipe which is prepared by adopting the processes of pretreatment, preheating, inner coating, leveling and post-treatment, and is an upgraded product of the traditional galvanized pipe. The installation process of the water supply steel-plastic pipeline usually needs to use a pipeline transition connecting piece. The existing pipeline transition connecting piece has poor sealing performance, and when the water supply steel-plastic pipeline shakes, the transition connecting piece is easy to loosen, so that the use is influenced.

SUMMERY OF THE UTILITY MODEL

To above defect, the utility model provides a pipeline connecting piece is moulded to feedwater steel to solve the water supply steel and mould the pipe connection problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a water supply steel-plastic pipeline connecting piece comprises a first steel-plastic pipeline and a second metal pipeline, wherein the first steel-plastic pipeline and the second metal pipeline are connected through a clamping sleeve mechanism;

the clamping sleeve mechanism comprises a joint body, a group of external threads, a group of convex nuts, a group of concave nuts and a group of clamping sleeves, wherein the joint body is arranged between the first steel-plastic pipeline and the second metal pipeline, the group of external threads are attacked at two ends of the outer surface of the joint body, the group of convex nuts are respectively screwed at the inner ends of the group of external threads in a hanging manner, the group of concave nuts are respectively screwed at the outer ends of the group of external threads in a hanging manner and are mutually meshed with the group of convex nuts, and the group of clamping sleeves are respectively sleeved at the inner rear ends of the group of concave nuts.

Furthermore, the front ends of the first steel-plastic pipeline and the second metal pipeline are respectively inserted into two ends of the joint body through a group of sealing rings.

Furthermore, the two ends in the joint body are annularly provided with a group of sealing grooves corresponding to the sealing rings.

Furthermore, a group of conical surfaces corresponding to the clamping sleeve are arranged at the inner end and the outer end of the connector body.

Furthermore, the upper end of the convex nut is eccentrically machined, and the bottom of the concave nut is circularly machined.

The utility model provides a pipeline connecting piece is moulded to feedwater steel possesses following beneficial effect, can carry out the cutting ferrule to first steel-plastic pipe and second metal pipeline through the cutting ferrule mechanism that is located between first steel-plastic pipe and the second metal pipeline and connect, and during the connection, the inside seal extrusion improves the leakproofness in going into the seal groove, and outside convex nut and concave nut interlock can play wedge locking effect.

Drawings

Fig. 1 is a schematic view of a water supply steel-plastic pipe connecting piece of the utility model.

Fig. 2 is a partially enlarged view of a portion a in fig. 1 according to the present invention.

Fig. 3 is a partially enlarged view of the point B in fig. 1 according to the present invention.

Fig. 4 is the schematic diagram of the engagement between the male nut and the female nut of the present invention.

Fig. 5 is a schematic view of the sealing ring of the present invention.

Fig. 6 is an appearance view of the water supply steel-plastic pipe connecting piece of the utility model.

In the figure: 1. a first steel-plastic pipe; 2. a second metal pipe; 3. a fitting body; 4. an external thread; 5. a male nut; 6. a female nut; 7. a card sleeve; 8. a seal ring; 9. a sealing groove; 10. a conical surface.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings, as shown in fig. 1-6: a water supply steel-plastic pipeline connecting piece comprises a first steel-plastic pipeline 1 and a second metal pipeline 2, wherein the first steel-plastic pipeline 1 and the second metal pipeline 2 are connected through a clamping sleeve mechanism; the clamping sleeve mechanism comprises a joint body 3, a group of external threads 4, a group of convex nuts 5, a group of concave nuts 6 and a group of clamping sleeves 7, wherein the joint body 3 is arranged between the first steel-plastic pipeline 1 and the second metal pipeline 2, the group of external threads 4 are arranged at two ends of the outer surface of the joint body 3 in an attacking mode, the group of convex nuts 5 are respectively screwed at the inner ends of the group of external threads 4 in a hanging mode, the group of concave nuts 6 are respectively screwed at the outer ends of the group of external threads 4 in a hanging mode and are mutually meshed with the group of convex nuts 5, and the group of clamping sleeves 7 are respectively sleeved at the inner rear ends of the group of concave nuts 6; the front ends of the first steel-plastic pipeline 1 and the second metal pipeline 2 are respectively inserted into two ends of the joint body 3 through a group of sealing rings 8; two ends in the joint body 3 are annularly provided with a group of sealing grooves 9 corresponding to the sealing rings 8; the inner end and the outer end of the connector body 3 are provided with a group of conical surfaces 10 corresponding to the clamping sleeve 7; the upper end of the convex nut 5 is processed eccentrically, and the bottom of the concave nut 6 is processed circularly.

The working principle of the embodiment is as follows: when the connector is used, a user firstly hangs and screws a group of convex nuts 5 at the inner ends of the group of the external threads 4 respectively and enables the rear ends of the group of the convex nuts 5 to abut against the connector body 3, after the group of the convex nuts 5 are installed, the user respectively sleeves a group of concave nuts 6 and a group of clamping sleeves 7 on a first steel-plastic pipeline 1 and a second metal pipeline 2, then the front ends of the first steel-plastic pipeline 1 and the second metal pipeline 2 are respectively inserted into the two ends of the connector body 3 through a group of sealing rings 8, the two ends in the connector body 3 are annularly provided with a group of sealing grooves 9 corresponding to the sealing rings 8, the inner end and the outer end of the connector body 3 are provided with a group of conical surfaces 10 corresponding to the clamping sleeves 7, the user hangs and screws the group of the concave nuts 6 through a wrench, the group of the concave nuts 6 firstly drives the outer sides of the front ends of the group of the clamping sleeves 7 to be attached to the conical surfaces 10 of the connector body 3, and simultaneously, first steel-plastic pipe 1 and second metal pipeline 2 extrude the sealing washer 8 of front end into in the seal groove 9, sealing washer 8 can play the sealing effect, prevent that liquid from flowing in first steel-plastic pipe 1 and second metal pipeline 2, the eccentric processing in 5 upper ends of protruding nut, the circular processing in 6 bottoms of concave nut, finally, protruding nut 5 and the interlock of concave nut 6, as shown in figure 1, play the locking effect of wedge, when preventing that first steel-plastic pipe 1 and second metal pipeline 2 from taking place to rock, the coupling piece takes place to become flexible.

Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical staff probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Claims

1. A water supply steel-plastic pipeline connecting piece comprises a first steel-plastic pipeline (1) and a second metal pipeline (2), and is characterized in that the first steel-plastic pipeline (1) is connected with the second metal pipeline (2) through a clamping sleeve mechanism;

the cutting ferrule mechanism comprises a connector body (3), a group of external threads (4), a group of convex nuts (5), a group of concave nuts (6) and a group of cutting ferrules (7), wherein the connector body (3) is arranged between a first steel plastic pipeline (1) and a second metal pipeline (2), the group of external threads (4) are attacked at two ends of the outer surface of the connector body (3), the group of convex nuts (5) are respectively hung at the inner ends of the group of external threads (4), the group of concave nuts (6) are respectively hung at the outer ends of the group of external threads (4) and are mutually meshed with the group of convex nuts (5), and the group of cutting ferrules (7) are respectively sleeved at the inner rear ends of the group of concave nuts (6).

2. A water supply steel-plastic pipe connecting piece according to claim 1, characterized in that the front ends of the first steel-plastic pipe (1) and the second metal pipe (2) are respectively inserted into the two ends of the joint body (3) through a group of sealing rings (8).

3. A water supply steel-plastic pipe connecting piece according to claim 1 and claim 2, characterized in that a group of sealing grooves (9) corresponding to the sealing rings (8) are annularly arranged at two ends in the joint body (3).

4. A water supply steel-plastic pipe connecting piece according to claim 1, characterized in that the inner and outer ends of the joint body (3) are provided with a group of conical surfaces (10) corresponding to the clamping sleeve (7).

5. The steel-plastic pipe connection member for water supply according to claim 1, characterized in that the upper end of the male nut (5) is eccentrically processed and the bottom of the female nut (6) is circularly processed.