CN211118216U

CN211118216U - Connecting joint of antistatic flame-retardant plastic composite pipe

Info

Publication number: CN211118216U
Application number: CN201922098233.0U
Authority: CN
Inventors: 宋忠林
Original assignee: Yanggu Lufa New Material Co ltd
Current assignee: Yanggu Lufa New Material Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-07-28
Anticipated expiration: 2029-11-29

Abstract

The utility model discloses a joint of compound pipe of antistatic fire-retardant plastics, including connector body, antistatic fire-retardant composite bed, antistatic layer and fire-retardant layer, connector body one end is provided with first sealing, antistatic fire-retardant composite bed, antistatic layer, fire-retardant layer and connector body are arranged by outer to interior in proper order. The utility model discloses a set up first hold-down mechanism, fixed establishment, second hold-down mechanism, fire-retardant layer, antistatic layer and antistatic fire-retardant composite bed, can make the connector have antistatic and fire-retardant function with compound pipe the same, the design has first sealing and second sealing simultaneously, and keep compressing tightly the state to fire-retardant layer and antistatic layer constantly, avoid the plastics pipeline ageing, the tube head is deviate from when surrendering seepage or pipeline pressurized, this kind of connection mode does not receive plastics plastic deformation's influence, also not receive the influence of temperature, it is high to connect stable joint strength.

Description

Connecting joint of antistatic flame-retardant plastic composite pipe

Technical Field

The utility model relates to a compound pipe technical field especially relates to a attach fitting of compound pipe of antistatic flame retardant plastics.

Background

The antistatic flame-retardant plastic composite pipe has the advantages of good rigidity, high strength, low cost, flame retardance, difficult separation and the like, is widely applied to various water and gas transportation industries, and needs a connector to connect two pipelines at the moment because the length needed by some pipelines is greater than the length of a single section of the composite pipe.

The existing connecting modes of the connector are generally divided into a metal connecting mode and a non-metal connecting mode, and both the two connectors have certain defects, wherein the metal connecting mode is not corrosion-resistant, the service cycle is short, the replacement frequency is high, and the cost is greatly increased; the non-metal connection has poor rigidity, low strength, easy generation of static electricity and easy separation, thereby reducing the physical and mechanical properties of the composite pipe, and the composite pipe mainly plays the roles of static resistance and flame retardance, so the connection modes are not suitable for the connection of the composite pipe

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the joint of the compound pipe of antistatic fire-retardant plastics that proposes, it is through setting up first hold-down mechanism, fixed establishment, second hold-down mechanism, fire-retardant layer, antistatic layer and antistatic fire-retardant composite bed, can make the connector have antistatic and fire-retardant function with compound pipe the same, the simultaneous design has first sealing and second sealing, and keep the compression state to fire-retardant layer and antistatic layer constantly, avoid the plastic conduit ageing, the tube head is deviate from when surrendering seepage or pipeline pressurized, this kind of connection mode does not receive plastic deformation's influence, also not receive the influence of temperature, it is high to connect stable joint strength.

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

the utility model provides a attach fitting of compound pipe of antistatic flame retardant plastics, includes connector body, antistatic flame retardant composite bed, antistatic layer and fire-retardant layer, connector body one end is provided with first sealing, antistatic flame retardant composite bed, antistatic layer, fire-retardant layer and connector body are arranged in proper order by outer extremely in, through second sealing connection between connector body and the fire-retardant layer, install the first hold-down mechanism that is used for compressing tightly the antistatic layer between connector body and the antistatic layer, the wall mounting has the second hold-down mechanism that is used for compressing tightly fire-retardant layer on the fire-retardant layer side.

Preferably, the first sealing part and the second sealing part are both made of silica gel or rubber materials, and are both annular.

Preferably, the first compressing mechanism comprises a compressing piece, one end of the compressing piece is fixedly connected to the upper end of the antistatic layer, a tensioning piece is arranged at the other end of the compressing piece, and the tensioning piece is fixedly connected to the connector body through a fixing mechanism.

Preferably, the fixing mechanism comprises a tightening screw, the side wall of the connector body is provided with a first threaded hole, the side wall of the tensioning piece is provided with a second threaded hole matched with the first threaded hole, and the tightening screw is sequentially in threaded connection with the first threaded hole and the second threaded hole.

Preferably, the second hold-down mechanism comprises a rubber pad and a spring, the rubber pad is fixedly sleeved on the side wall of the flame-retardant layer, and the spring is arranged on the side wall of the rubber pad.

Preferably, the tightening member is in a spiral shape, and the tightening member is always kept in a tight state under the action of the tightening member.

The utility model discloses following beneficial effect has:

1. by arranging the flame-retardant layer, the antistatic layer and the antistatic flame-retardant composite layer, the connector has antistatic and flame-retardant functions as the composite pipe, so that the connector is suitable for connecting the antistatic flame-retardant plastic composite pipe;

2. through setting up first hold-down mechanism, second hold-down mechanism, first sealed not with the second sealing, can keep the compression state to fire-retardant layer and antistatic layer constantly, the tube head is deviate from when avoiding plastic conduit ageing, surrender seepage or pipeline pressurized, and this kind of connection mode does not receive plastics plastic deformation's influence, does not also receive the influence of temperature, connects stable joint strength height.

Drawings

Fig. 1 is a schematic structural view of a connection joint of an antistatic flame-retardant plastic composite pipe provided by the utility model;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

in the figure: 1 connector body, 2 first sealing, 3 second sealing, 4 fire-retardant layers, 5 antistatic layers, 6 piece, 7 taut, 8 first screw holes, 9 second screw holes, 10 tightening screws, 11 antistatic fire-retardant composite bed, 12 rubber pads, 13 springs of compressing tightly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a connector of antistatic flame-retardant plastic composite pipe comprises a connector body 1, an antistatic flame-retardant composite layer 11, an antistatic layer 5 and a flame-retardant layer 4, wherein a first sealing part 2 is arranged at one end of the connector body 1, the antistatic flame-retardant composite layer 11, the antistatic layer 5, the flame-retardant layer 4 and the connector body 1 are sequentially arranged from outside to inside, and the connector body 1 and the flame-retardant layer 4 are hermetically connected through a second sealing part 3.

Install between connector body 1 and the antistatic layer 5 and be used for compressing tightly the first hold-down mechanism of antistatic layer 5, first hold-down mechanism is including compressing tightly piece 6, and the one end fixed connection who compresses tightly piece 6 is in antistatic layer 5 upper end, and the other end that compresses tightly piece 6 is provided with taut 7, and taut 7 passes through fixed establishment fixed connection on connector body 1.

The fixing mechanism comprises a tightening screw 10, a first threaded hole 8 is formed in the side wall of the connector body 1, a second threaded hole 9 matched with the first threaded hole 8 is formed in the side wall of the tightening piece 7, and the tightening screw 10 is sequentially in threaded connection with the first threaded hole 8 and the second threaded hole 9.

The side wall of the flame-retardant layer 4 is provided with a second pressing mechanism for pressing the flame-retardant layer 4, the second pressing mechanism comprises a rubber pad 12 and a spring 13, the rubber pad 12 is fixedly sleeved on the side wall of the flame-retardant layer 4, and the spring 13 is arranged on the side wall of the rubber pad 12.

The first sealing part 2 and the second sealing part 3 are both made of silica gel or rubber materials, and the first sealing part 2 and the second sealing part 3 are both in a circular ring shape.

The shape of tensioning piece 7 is the heliciform, and the compressing piece 6 remains the state that compresses tightly all the time under tensioning piece 7's effect, can not receive the influence of the yield plastic deformation that the temperature leads to, and connection stability is strong, can guarantee long-term safe operation.

The utility model discloses in, fire-retardant layer 4, antistatic layer 5 and antistatic fire-retardant composite bed 11 connect gradually on 1 lateral wall of connector body, compress tightly 6 and fix on 5 lateral walls of antistatic layer, during the installation, align first screw hole 8 with second screw hole 9 of tensioning piece 7, will add fastening screw 10 threaded connection again in first screw hole 8 and second screw hole 9, make compress tightly 6 and keep compressing tightly the state to antistatic layer 5 all the time.

In the installation, compress tightly 6 simultaneous pressure spring 13 to promote rubber pad 12 and compress tightly fire-retardant layer 4, keep compressing tightly the state to fire-retardant layer and antistatic layer constantly, the tube head is deviate from when avoiding the ageing, the yield seepage of plastic conduit or pipeline pressurized, and this kind of connection mode does not receive plastics plastic deformation's influence, also does not receive the influence of temperature, connects stable joint strength height.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a attach fitting of compound pipe of antistatic fire-retardant plastics, includes connector body (1), antistatic fire-retardant composite bed (11), antistatic layer (5) and fire-retardant layer (4), a serial communication port, connector body (1) one end is provided with first sealing (2), antistatic fire-retardant composite bed (11), antistatic layer (5), fire-retardant layer (4) and connector body (1) are arranged by outer to interior in proper order, through second sealing (3) sealing connection between connector body (1) and fire-retardant layer (4), install the first hold-down mechanism that is used for compressing tightly antistatic layer (5) between connector body (1) and antistatic layer (5), install the second hold-down mechanism that is used for compressing tightly fire-retardant layer (4) on fire-retardant layer (4) lateral wall.

2. The joint of the antistatic flame-retardant plastic composite pipe according to claim 1, wherein the first sealing part (2) and the second sealing part (3) are made of silica gel or rubber materials, and the first sealing part (2) and the second sealing part (3) are annular.

3. The connecting joint of the antistatic flame-retardant plastic composite pipe according to claim 1, wherein the first compressing mechanism comprises a compressing member (6), one end of the compressing member (6) is fixedly connected to the upper end of the antistatic layer (5), the other end of the compressing member (6) is provided with a tensioning member (7), and the tensioning member (7) is fixedly connected to the connecting joint body (1) through a fixing mechanism.

4. The connector of the antistatic flame retardant plastic composite pipe according to claim 3, wherein the fixing mechanism comprises a clamping screw (10), the side walls of the connector body (1) are provided with a first threaded hole (8), the side walls of the tension member (7) are provided with a second threaded hole (9) matched with the first threaded hole (8), and the clamping screw (10) is sequentially screwed in the first threaded hole (8) and the second threaded hole (9).

5. The joint of the antistatic flame-retardant plastic composite pipe as claimed in claim 1, wherein the second pressing mechanism comprises a rubber pad (12) and a spring (13), the rubber pad (12) is fixedly sleeved on the side wall of the flame-retardant layer (4), and the springs (13) are arranged on the side wall of the rubber pad (12).

6. The joint of claim 3, wherein the tension member (7) is formed in a spiral shape, and the pressing member (6) is always kept in a compressed state by the tension member (7).