CN204372429U - Plastic tube connection part - Google Patents

Abstract

The utility model discloses a kind of plastic tube connection part.It comprises a connecting head, and described connecting head is provided with at least two connection mouths; Each connection mouth corresponding is also provided with: an attaching nut, is axially arranged with a connected pore channel in it, described connected pore channel is divided into linkage section and clamp section, and described linkage section is threaded with corresponding connection mouth, and the endoporus cross section of described clamp section is taper type; One internal jacket, for inserting in the connected pore channel of described attaching nut, be axially arranged with a trepanning in it, one end week side shaft of described trepanning is to extending the clamping member be made up of at least two pieces of elastic pressuring plates, and the profile of described clamping member is in the taper type matched with described clamp section endoporus; With a seal ring, for being set on the connecting end of plastic tube.The utility model makes the attended operation of the plastic tubes such as PE pipe, pvc pipe and connecting head become convenient and swift, and can install and remove at any time, reuses, and sealability might as well.

Description

Plastic pipe connection components

technical field

The utility model relates to a plastic pipe connecting assembly mainly used for connecting PE pipes or PVC pipes.

Background technique

In actual use, when PE pipes or PVC pipes need to be connected to straight-through connectors, elbow connectors, three-way connectors, four-way connectors, and pipe plug connectors, glue, threaded fasteners, and heat are often used to connect them. Melting and other processes, the operation process is more complicated, it is not easy to assemble and disassemble, and it is difficult to reuse.

Utility model content

The purpose of the utility model is to provide a plastic pipe connection assembly to solve the shortcomings of the prior art.

In order to achieve the above object, the utility model adopts the following technical solutions:

The plastic pipe connection assembly includes a connecting head, and at least two connecting ports are arranged on the connecting head; corresponding to each connecting port, a connecting nut is provided with a communicating channel in the axial direction, and the communicating channel is divided into It is a connecting section and a clamping section, the connecting section is threadedly connected with the corresponding connecting port, the cross-section of the inner hole of the clamping section is in the shape of a truncated cone; an inner jacket is used to be placed in the communicating channel of the connecting nut, and its A set of holes is provided in the inner axis, and a clamping part composed of at least two elastic pressure pieces extends axially from one end of the sleeve hole, and the shape of the clamping part is matched with the inner hole of the clamping section. The frustum of the cone; and a sealing ring, which is set on the connecting end of the plastic pipe.

Preferably, the number of the elastic pressing pieces is four.

Preferably, the inner side wall of the elastic pressing piece is provided with several engaging teeth.

Preferably, the outer wall of the connecting nut is provided with a plurality of convex ribs equidistantly along the axial direction.

Preferably, the inner hole diameter of the connecting section is larger than the maximum inner hole diameter of the clamping section.

Preferably, the outer wall of the inner jacket is circumferentially provided with a ring of stop protrusions, the outer diameter of the stop protrusions is not greater than the inner diameter of the connecting section, but greater than the maximum inner diameter of the clamping section .

Preferably, the connector is a straight connector, or an elbow connector, or a three-way connector, or a four-way connector, or a pipe plug connector.

The utility model adopts the above-mentioned structure, so that the connection operation between plastic pipes such as PE pipes and PVC pipes and the connectors becomes convenient and fast, and can be assembled and disassembled at any time for repeated use, and the sealing performance is also good.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the connector of the utility model using an elbow connector.

Fig. 2 is a top structural schematic diagram of the connecting nut of the present invention.

Fig. 3 is a top structural schematic diagram of the inner jacket of the present invention.

Fig. 4 is a schematic diagram of the structure of the connector described in the present invention as a straight-through connector.

Fig. 5 is a schematic diagram of the structure of the connector described in the present invention as a three-way connector.

Fig. 6 is a schematic diagram of the structure of the connector described in the present invention as a four-way connector.

In the picture:

11—elbow connector; 111—connection port; 12—straight connector; 13—tee connector; 14—four-way connector; 2—connection nut; 21—connecting channel; 211—connection section; 212—clip Pipe section; 22—convex rib; 3—inner jacket; 31—casing hole; 32—clamping part; 321—elastic pressing piece; 322—occlusal teeth; 33—stop boss; 4—sealing ring.

Now in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Detailed ways

As shown in FIGS. 1 to 3 , the plastic pipe connection assembly described in the present invention is composed of an elbow connector 11 , two connection nuts 2 , two inner jackets 3 and two sealing rings 4 .

The elbow connector 11 has two connection ports 111, and the outer wall of each connection port is provided with an external thread. A connection nut 2 , an inner jacket 3 and a sealing ring 4 are provided corresponding to each connection port.

A connecting hole 21 is arranged axially inside the connecting nut 2 , and the connecting hole 21 is divided into a connecting section 211 and a clamping section 212 . The inner hole of the connecting section 211 is provided with an internal thread and can be threadedly connected with a corresponding connecting port. The cross-section of the inner hole of the clamping section 212 is in the shape of a truncated cone. Moreover, the diameter of the inner hole of the connection section 211 is greater than the maximum diameter of the inner hole of the clamping section 212 . In addition, the outer wall of the connecting nut 2 is provided with several ribs 22 equidistantly along the axial direction.

The inner jacket 3 is axially provided with a sleeve hole 31, and one end of the sleeve hole 31 axially extends a clamping part 32 composed of four elastic pressing pieces 321. The shape of the clamping part 32 is similar to that of The inner hole of the pinch section matches the truncated cone shape. A plurality of engaging teeth 322 are disposed on the inner sidewall of each elastic pressing piece 321 . In addition, the outer wall of the inner jacket 3 is circumferentially provided with a stop boss 33 whose outer diameter is not larger than the inner diameter of the connecting nut connecting section, but larger than the maximum inner hole diameter of the connecting nut clamping section.

The use process of the present utility model is as follows:

First put the connecting nut, inner jacket and sealing ring into the connecting end of the PE pipe or PVC pipe in sequence, then insert the connecting end of the PE pipe or PVC pipe into a connection port of the connecting head, and then put the sealing ring and the inner jacket Squeeze down, and finally turn the connecting nut to screw the connecting nut and the connecting port to realize the connection between the PE pipe or PVC pipe and the connecting head. Wherein, the convex rib on the connecting nut can not only enhance the force bearing of the connecting nut, but also provide convenience for the turning operation. In addition, the stop boss on the inner jacket can limit the position of the inner jacket in the connecting nut, and the teeth on the inner side wall of the elastic pressure piece can tightly clamp the PE pipe or PVC pipe, making the whole connection structure more stable. For firm.

In addition, in addition to the elbow connector, the connector of the present utility model can also be a straight connector 12 as shown in Figure 4, or a three-way connector 13 as shown in Figure 5, or a four-way connector as shown in Figure 6. Connector 14.

Claims (7)

1. The plastic pipe connection assembly includes a connector, and the connector is provided with at least two connection ports, and it is characterized in that, corresponding to each connection port, it is also provided with: A connecting nut, which is axially provided with a communicating channel, the communicating channel is divided into a connecting section and a clamping section, the connecting section is screwed to the corresponding connecting port, and the cross section of the inner hole of the clamping section is frustum-shaped; An inner jacket, for being placed into the communicating channel of the connecting nut, a set of holes is arranged axially in the inner jacket, and a clamping part composed of at least two elastic pressing pieces extends axially from one end of the sleeve hole , the outer shape of the clamping part is a truncated cone matching the inner hole of the clamping section; and A sealing ring is sleeved on the connecting end of the plastic pipe. 2. The plastic pipe connection assembly according to claim 1, wherein the number of said elastic pressing pieces is four. 3. The plastic pipe connection assembly according to claim 1 or 2, characterized in that, the inner side wall of the elastic pressing piece is provided with a plurality of occlusal teeth. 4. The plastic pipe connection assembly according to claim 1, characterized in that, the outer wall of the connection nut is provided with several convex ribs at equal intervals along the axial direction. 5 . The plastic pipe connection assembly according to claim 1 , wherein the diameter of the inner hole of the connecting section is larger than the maximum diameter of the inner hole of the clamping section. 6 . 6. The plastic pipe connection assembly according to claim 5, wherein the outer wall of the inner jacket is circumferentially provided with a ring of stop bosses, and the outer diameter of the stop bosses is not larger than that of the connection section, but greater than the maximum bore diameter of the pinch section. 7. The plastic pipe connection assembly according to claim 1, wherein the connector is a straight-through connector, or an elbow connector, or a three-way connector, or a four-way connector, or a pipe plug connector .