CN201078546Y

CN201078546Y - Connecting pipe fitting of reinforced thermoplastics tube

Info

Publication number: CN201078546Y
Application number: CNU2007200543925U
Authority: CN
Inventors: 李志雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-20
Filing date: 2007-07-20
Publication date: 2008-06-25
Anticipated expiration: 2017-07-20

Abstract

The utility model relates to a connecting pipe fitting of PTP with strengthened thermoplastic, in particular to a connecting pipe fitting of plastic composite pipe with flaring strengthened thermoplastic. The utility model is composed of a first flaring connecting pipe, a second flaring connecting pipe, a ring crush sleeve, an inner bush and a seal gasket; pipes flared well shall be pre-mounted with the ring crush sleeve with both internal and external walls fitted and fabricated and the inner bush attached with connecting device; the ring crush sleeve which is compressed and sleeved on external wall of pipes by using tools is matchedly placed at clamping pipe of external wall of the inner bush in the pipelines; after installed the inner bush and the ring crush sleeve, the pipes with joints are able to be transported to the construction site conveniently; during butting the pipes, add the seal gasket between the two bushes by utilizing the connecting device of the inner bush and then only need to connect and lock the inner bush. The utility model enables the convenient and quick connection and installation between pipes, saves construction time and has reliable sealing operation; besides, the utility model doesn't shorten the path coefficient of pipes, which has simple structure and low cost.

Description

A kind of connection pipe fitting of reinforced thermoplastics tubing

Technical field:

The utility model is a kind of connection pipe fitting, and particularly a kind of connection pipe fitting of reinforced thermoplastics tubing belongs to the renovation technique of connection pipe fitting.

Background technique:

At present, the connection of plastic composite pipe is covered in plastic tube, inside and outside, for the less tubing of working pressure, generally adopts electrothermal smelting tube, socket pipe member or clip clamp-press type pipe to connect.And for the higher compound plastic pipe of working pressure, as reinforced thermoplastics pipe (Reinforced Thermoplastic pipe, be called for short RTP), its interconnection technique is a difficult problem always, the now external RTP connection pipe fitting that adopts adds the fixing pipe fitting of sleeve pipe welding etc. after having the hot melt sleeve pipe to add device that flange plate connects or port hot melt, domestic joint for this tubing, having only Chinese patent application at present number is disclosed in 200420080389.7 " high pressure connector lug for fiber enhanced thermoplastic composite plastic tube ", it is installed as Fig. 4, these Placements all are that pipeline is direct-connected, the internal diameter that is tubing is constant, directly reinforce and decide connection set at skin, only rely on tubing skin and the welding between the sleeve pipe to try hard to keep and demonstrate,prove docking of tubing, also have the part connection pipe fitting after connection is installed, can dwindle the latus rectum of tubing in addition.The shortcoming that these connection pipe fittings exist is or complex structure, or complex operation step, or cost is higher, or only relies on outer tube layer to be connected with the welding power of sleeve, or has dwindled the latus rectum of tubing, and all also needs to use special-purpose fixed connection apparatus.

The model utility content:

The purpose of this utility model be to provide a kind of make switching performance between the reinforced thermoplastics tube and tube reliable and stable, simple and fast be installed very, saved the engineering time, the Butt sealing operation is reliable, and can not influence the connection pipe fitting of the reinforced thermoplastics tubing of latus rectum.The utility model is simple in structure, with low cost.

The technical solution of the utility model is: the utility model includes ring gland, the neck bush that is provided with connection set and link, the first connection tubing that enlarging in advance is good is installed in inside and outside wall and works in coordination between the neck bush of making and ring gland, and make by the compression ring gland and to connect between the inwall that tubing is clamped in the outer wall of neck bush and neck bush, what enlarging in advance was good second connects between the inwall of outer wall that tubing in like manner is clamped in the opposite side neck bush and neck bush, and first connects tubing and second and connect tubing by neck bush set connection set and link connection.

The set connection set of above-mentioned neck bush is the male connection that is arranged on its end, the thread bush of link for being threaded with the male connection realization.

Also be provided with sealing gasket between the set connection set of above-mentioned left and right sides neck bush.

The enlarging outer wall surface shape that the above-mentioned first connection tubing, second connects tubing is identical with the inner wall surface shape of ring gland, is the ring bodies of sawtooth; The enlarging inner wall surface shape that the first connection tubing, second connects tubing is identical with the outer wall surface shape of ring gland, is the ring bodies of sawtooth.

Above-mentioned first connects tubing includes interior pipe layer, mesosphere layer of fibers, outer covering layer, pipe layer and outer covering layer are the thermoplastic plastic layer wherein, the mesosphere is the closely staggered reinforcing fiber layer that twines, and the structure that second structure and first that connects tubing connects tubing is identical.

The utility model is owing to adopt two by the connection of enlarging tubing. the structure that tubing connects by two ring glands and neck bush, and two ring gland inwalls are all worked in coordination with the outer wall shape of neck bush, behind the compression ring gland, two ring gland inner wall surface are pressed into the outer wall surface of two connection tubing respectively, the neck bush outer wall is pressed into the inner wall surface of two connection tubing respectively, and after installing neck bush and ring gland, the tubing of belt lacing can conveniently be transported to the job site and construct, need not to operate at the construction field (site), only need between neck bush, to place sealing gasket at the construction field (site) and dock locking again.Therefore, can make the connection between the tube and tube very simple, save the engineering time, seal operation is reliable, and the utility model can not dwindle the latus rectum that connects tubing.The utility model is simple in structure, with low cost, is a kind of connection pipe fitting of convenient and practical reinforced thermoplastics tubing.

Description of drawings:

Fig. 1 is the utility model embodiment 1 a structural representation;

Fig. 2 is the utility model embodiment 2 a structural representation.

Embodiment:

Embodiment 1:

Structural representation of the present utility model as shown in Figure 1, include enlarging in advance good first connect the neck bush 2 that tubing 5 and second connects tubing 6, ring gland 1, is provided with connection set 21, in the present embodiment, above-mentioned neck bush 2 set connection sets 21 are the mounting flange that is arranged on its end, and link 3 is a bolt.Manage layer 51, mesosphere layer of fibers 52, outer covering layer 53 in the above-mentioned first connection tubing 5 includes, wherein interior layer 51 and the outer covering layer of managing " be the thermoplastic plastic layer, mesosphere 52 is the reinforcing fiber layer of tight staggered winding.

During installation, first connects tubing 5 and second connects tubing 6 enlarging in advance when making, but installing ring gland and neck bush after the enlarging, the outer wall of ring gland 1 inwall and neck bush 2 is intermeshing ring bodies, ring gland 1 is enclosed within first and connects on the outer wall of flared end that tubing 5 and second connects tubing 6, neck bush 2 inserts first and connects the flared end that tubing 5 and second connects tubing 6, compression ring gland 1, make ring gland 1 inwall be pressed into first and connect the outer wall that tubing 5 and second connects tubing 6, and neck bush 2 outer walls are pressed into the inwall that the first connection tubing 5 and second connects tubing 6, during butt joint, lock the flange plate of two neck bushs 2 by connecting bolt, and sealing gasket 4 is installed between neck bush 2.

Embodiment 2:

Structural representation of the present utility model as shown in Figure 2, its structure is identical with embodiment 1, difference is that above-mentioned neck bush 2 set connection sets 21 are the male connection that is arranged on its end, the thread bush of link 3 for being threaded with the male connection realization.In the present embodiment, use thread bush to connect the inipple of the neck bush 2 of the left and right sides, in addition, about also be embedded with Sealing 4 between two neck bushs 2, only need the rotation thread bush can be with neck bush 2 lock sealings of two band male connections.

Claims

1. the connection pipe fitting of a reinforced thermoplastics tubing, it is characterized in that including ring gland (1), be provided with the neck bush (2) and the link (3) of connection set (21), the first connection tubing (5) that enlarging in advance is good is installed in inside and outside wall and works in coordination between the neck bush of making (2) and ring gland (1), and make by compression ring gland (1) and to connect between the inwall that tubing (5) is clamped in the outer wall of neck bush (2) and neck bush (2), what enlarging in advance was good second connects between the inwall of outer wall that tubing (5) in like manner is clamped in opposite side neck bush (2) and neck bush (2), and first connects tubing (5) and second and connect tubing (5) by neck bush (2) set connection set (21) and link (3) connection.

2. the connection pipe fitting of reinforced thermoplastics tubing according to claim 1 is characterized in that the set connection set (21) of above-mentioned neck bush (2) for being arranged on the mounting flange of its end, and link (3) is a bolt.

3. the connection pipe fitting of reinforced thermoplastics tubing according to claim 1, it is characterized in that the set connection set (21) of above-mentioned neck bush (2) is for being arranged on the male connection of its end, the thread bush of link (3) for being threaded with the male connection realization.

4. according to the connection pipe fitting of claim 1 or 2 or 3 described reinforced thermoplastics tubing, it is characterized in that also being provided with sealing gasket (4) between the set connection set (21) of above-mentioned left and right sides neck bush (2).

5. the connection pipe fitting of reinforced thermoplastics tubing according to claim 4, the enlarging outer wall surface shape that it is characterized in that the above-mentioned first connection tubing (5), the second connection tubing (5) is identical with the inner wall surface shape of ring gland (1), is the ring bodies of sawtooth; The enlarging inner wall surface shape that the first connection tubing (5), second connects tubing (5) is identical with the outer wall surface shape of ring gland (1), is the ring bodies of sawtooth.

6. the connection pipe fitting of reinforced thermoplastics tubing according to claim 5, it is characterized in that the above-mentioned first connection tubing (5) includes interior pipe layer (51), a mesosphere layer of fibers (52), outer covering layer (53), pipe layer (51) and outer covering layer (53) are the thermoplastic plastic layer wherein, mesosphere (52) is the closely staggered reinforcing fiber layer that twines, and the structure that second structure and first that connects tubing (6) connects tubing (5) is identical.