CN214368493U

CN214368493U - Dedicated novel clamp connection structure of plastic conduit

Info

Publication number: CN214368493U
Application number: CN202023046618.1U
Authority: CN
Inventors: 陈江慧; 褚展鹏
Original assignee: Linhai Weixing New Building Materials Co Ltd
Current assignee: Linhai Weixing New Building Materials Co Ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-10-08
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a dedicated novel clamp connection structure of plastic conduit belongs to plastic conduit connection technical field. The connecting structure is used for assembling and connecting a first plastic pipe and a second plastic pipe and comprises a fixing part, a hoop, an inner bushing and a sealing washer; the inner bushing is of a tubular structure, the outer surface of the inner bushing is provided with a convex ring, the inner bushing is connected with the first plastic pipe and the second plastic pipe in an embedded mode, and the convex ring is tightly attached between the pipe walls of the first plastic pipe and the second plastic pipe; the outer surface of the connecting end of the first plastic pipe and the second plastic pipe is provided with a groove which is mutually matched with the two sides of the hoop, and the hoop is buckled in the groove and is fixed by a fixing part; the sealing washer is arranged in a cavity formed by the connection of the hoop and the first plastic pipe and the second plastic pipe and is used for sealing the connection port of the plastic pipe. The utility model discloses set up the neck bush that has protruding ring that the gomphosis is connected between pipeline and pipeline, avoid the clamp inwards shrink of pipeline when connecting the chucking pipeline.

Description

Dedicated novel clamp connection structure of plastic conduit

Technical Field

The utility model belongs to the technical field of plastic conduit connection structure, concretely relates to dedicated novel clamp connection structure of plastic conduit.

Background

The traditional plastic pipeline connection usually adopts the modes of hot melting, electric melting, mechanical connection and the like. The hot melting and electric melting needs special machines, operators need to be trained to a certain extent, the operation difficulty of the operators is high, and the assembly time is long. The mechanical connection generally adopts buckling and flange connection, and although the buckling connection has higher strength and is more reliable, special buckling equipment is required, and the site operation is extremely inconvenient. In order to meet the development requirements of companies, emergency rescue pipelines are developed, and the pipeline connection construction is facilitated, the connection mode of the clamp is adopted. The mode is simple to operate and reliable in connection. However, this connection is usually used in fire-fighting metal piping systems, and if the pipe is directly clamped on the plastic pipe, the clamp will be tightened to cause the pipe to shrink inward, so that the pipe cannot seal and cause leakage.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, an object of the utility model is to provide a dedicated novel clamp connection structure of plastic conduit.

A special novel clamp connection structure for plastic pipelines is used for connecting a first plastic pipe and a second plastic pipe and is characterized by comprising a fixing part, a clamp, an inner bushing and a sealing washer;

the inner bushing is of a tubular structure, the outer surface of the inner bushing is provided with a convex ring, the inner bushing is connected with the first plastic pipe and the second plastic pipe in an embedded mode, the convex ring is tightly attached between the pipe walls of the first plastic pipe and the second plastic pipe, the outer diameter of the tubular structure of the inner bushing is slightly smaller than the inner diameters of the first plastic pipe and the second plastic pipe, the two ends of the inner bushing can be well embedded between the first plastic pipe and the second plastic pipe, the effect of supporting and connecting pipelines is achieved, and inward shrinkage of the plastic pipelines caused by buckling connection is prevented;

the outer surface of the connecting end of the first plastic pipe and the second plastic pipe is provided with a groove which is mutually matched with the two sides of the hoop, and the hoop is buckled in the groove and is fixed by a fixing part;

and the sealing washer is arranged in a cavity formed by connecting the hoop with the first plastic pipe and the second plastic pipe and is used for sealing the connecting port of the plastic pipe.

The novel clamp connection structure special for the plastic pipeline is characterized in that the clamp is divided into an upper part and a lower part, and small holes are formed in two ends of the upper part and the lower part.

The special novel clamp connection structure for the plastic pipeline is characterized in that the fixing part comprises an outer hexagon bolt and an outer hexagon nut, the outer hexagon bolt penetrates through the small hole to be connected with the upper part and the lower part of the clamp, and the outer hexagon nut is adopted for fixing.

The novel clamp connection structure special for the plastic pipeline is characterized in that raised annular sealing lines are arranged on two sides of the raised ring.

The section of the sealing washer is in a shape of 'I', the sealing washer clings to the outer surface of the tail end of the pipeline to form primary sealing in a static state, and the sealing washer is passively pressed at the tail end of the pipeline to form secondary sealing under the inward limiting pressure of the hoop when the hoop is locked. The groove that has machining on the connected pipeline, clamp both ends embedding groove during the installation prevents to be connected the pipeline axial float. The inner bushing with the protruding ring and the hoop form a tight structure to lock an inner plastic part, so that the plastic pipe is prevented from being radially contracted to cause connection failure and provide certain negative pressure resistance.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1) the utility model discloses set up the neck bush that has protruding ring that the gomphosis is connected between pipeline and pipeline, avoid the clamp inwards shrink of pipeline when connecting the chucking pipeline.

2) The utility model discloses it is quick and convenient to install, and the pipeline high-speed joint of emergency such as specially adapted anti-disaster speedily carries out rescue work.

3) Because the sealing washer and the clamp adopt special sealing structure design, the pipeline connecting piece has good sealing performance, and the unique inner bushing design ensures the connecting strength and provides certain negative pressure resistance, so the groove type clamp can be applied to various working conditions of medium and low pressure pipelines.

4) The utility model discloses direct grooving on plastic conduit has saved the electric smelting part of metal material and metal and plastics, has greatly saved material and process.

Drawings

FIG. 1 is an exploded view of the structure of the present invention;

FIG. 2 is a sectional view of the structure of the present invention;

figure 3 inner liner cut away view.

In the figure: 1-a first plastic tube; 2-outer hexagon bolt; 3, clamping a hoop; 4-inner liner; 5-outer hexagon nut; 6-sealing gaskets; 7-a second plastic tube; 8-annular seal line.

Detailed Description

The present invention will be further described with reference to the drawings, but the scope of the present invention is not limited thereto.

As shown in fig. 1 and 2, a novel clamp connection structure specially used for plastic pipes, which connects a first plastic pipe 1 and a second plastic pipe 7, comprises an outer hexagon bolt 2, a clamp 3, an inner bushing 4, an outer hexagon nut 5 and a sealing washer 6; the outer surface of the inner bushing 4 is provided with a convex ring, the inner bushing 4 is connected with the first plastic pipe 1 and the second plastic pipe 7 in an embedded mode, the convex ring is tightly attached to the wall surface of the connecting end portion of the first plastic pipe 1 and the second plastic pipe 7, the upper surface of the convex ring and the outer surfaces of the first plastic pipe 1 and the second plastic pipe 7 are located on the same circular ring surface, the outer surface of the connecting end of the first plastic pipe 1 and the second plastic pipe 7 is provided with circular grooves matched with the two sides of the hoop 3, the hoop 3 is buckled in the grooves to be fixedly connected with the first plastic pipe 1 and the second plastic pipe 7, the hoop 3 is divided into an upper part and a lower part which are of the same structure, two ends of the upper part and the lower part are provided with small holes, the outer hexagonal bolt 2 penetrates through the small holes to connect the upper part and the lower part of the hoop 3, so that the hoop 3 is buckled and fixed in the grooves to be connected with the first plastic pipe 1 and the second plastic pipe 7, a sealing washer 6 is provided in a cavity formed by the coupling of the clamp 3 with the first plastic pipe 1 and the second plastic pipe 7, thereby sealing the connection port of the plastic pipes.

As shown in figure 3, two raised annular sealing lines 8 are arranged on two sides of the raised ring of the inner bushing 4, and when the clamp 3 is clamped, the connected pipeline is tightly attached to two sides of the inner bushing 4, so as to play a role of primary sealing.

Claims

1. A special novel clamp connection structure for plastic pipelines is used for assembling and connecting a first plastic pipe (1) and a second plastic pipe (7), and is characterized by comprising a fixing part, a clamp (3), an inner bushing (4) and a sealing washer (6);

the inner bushing (4) is of a tubular structure, a raised ring is arranged on the outer surface of the inner bushing, the inner bushing (4) is connected with the first plastic pipe (1) and the second plastic pipe (7) in an embedded mode, and the raised ring is tightly attached between the pipe walls of the first plastic pipe (1) and the second plastic pipe (7);

grooves matched with two sides of the hoop (3) are formed in the outer surface of the connecting end of the first plastic pipe (1) and the second plastic pipe (7), and the hoop (3) is buckled in the grooves and fixed by a fixing part;

and the sealing washer (6) is arranged in a cavity formed by connecting the clamp (3) with the first plastic pipe (1) and the second plastic pipe (7) and is used for sealing the connection port of the plastic pipe.

2. A novel band joint structure for plastic pipes as defined in claim 1, wherein said band (3) is divided into upper and lower parts, and both ends of the upper and lower parts are provided with small holes.

3. The novel clamp connection structure special for plastic pipes as claimed in claim 2, wherein the fixing component comprises an outer hexagon bolt (2) and an outer hexagon nut (5), the outer hexagon bolt (2) passes through the upper and lower components of the small hole connection clamp (3), and the outer hexagon nut (5) is used for fixing, so that the clamp (3) is fixed on the connection pipe in a buckling manner.

4. A novel band joint structure for plastic pipes as defined in claim 1 wherein said raised ring has raised annular sealing lines (8) on both sides.