CN201137783Y

CN201137783Y - Pipe joint

Info

Publication number: CN201137783Y
Application number: CNU2008200819145U
Authority: CN
Inventors: 林岳华
Original assignee: ZHEJIANG SEJIN WATER INDUSTRY Co Ltd
Current assignee: ZHEJIANG SEJIN WATER INDUSTRY Co Ltd
Priority date: 2008-01-07
Filing date: 2008-01-07
Publication date: 2008-10-22
Anticipated expiration: 2018-01-07

Abstract

The utility model discloses a pipeline connector, which comprises a connecter body (1) with an inner connecting part (10) of an assembly connecting pipe (9) and a packing ring (4) which is assembled in a groove (11) of the inner connecting part (10). The pipeline connector is characterized in that the pipeline connector comprises a clamping ring (2) with a groove (20), wherein a projecting part (21) is arranged on one end surface of the groove (20), a corresponding concave part (22) is arranged on the other end surface, the projecting part (21) and the corresponding concave part (22) are mutually connected to use the elastic fastening force to fasten and sleeve in a pipe (9) of the inner connecting part (10), and a pipeline connector also comprises a clipping block (3) which is arranged in the groove (20) of the clamping ring (2) and can adjustably and detachably expand the clamping ring (2) to keep the elastic force of the clamping ring (2). The pipeline connector can press along the expansion of the pipe (9), good sealing effect can be stably and durably kept, furthermore, the installing connection can be realized through removing the clipping block (3) of the pipeline connector, the operation is convenient, and the efficiency is high.

Description

Pipe joint

Technical field

The utility model relates to a kind of pipe joint, relates in particular to the pipe joint that cooperates with plastic tube or aluminium (steel) plastic composite.

Background technique

In industry, agricultural and urban construction, plastic tube or aluminium-plastic composite pipe plastic pipe etc. use more and more general.The link kind of its pipeline is also more, present widely used plastic pipe connecting head shown in notification number CN2929427Y, as shown in Figure 1, its structure comprises joint body 1 ' and the locking cap 2 ' that cooperates with its screw thread 11 ', and one screws the collar 3 ' (clamp ring) that is extruded distortion pinning pipeline 4 ' etc. by locking cap 2 '.The pipe joint of this class formation, different because of plastic pipe with the degree of expanding with heat and contract with cold of metal joint, cause unclamping between the pipe and joints, cause pipe leakage easily, especially under the big situation of temperature variation, can not keep good sealing effect stably and lastingly.And existing pipe joint, there are a plurality of component-assembled to use, installation efficiency is not high.

Summary of the invention

The utility model is at the problem that existing pipe joint exists, and providing a kind of can keep continuing impacting force with pipe, prevents from the pipe joint structure of leaking to have overcome the structural defective of prior art, improves the Security and the operability of pipe coupling.

For achieving the above object, the utility model is by the following technical solutions:

A kind of pipe joint comprises that one has the fittings body that assembling connects the interior joint of pipe; With the seal ring in the groove that is assemblied in interior joint, it is characterized in that comprising: the clamping ring of a trough of belt, an end face of groove is provided with bump, and the other end is provided with corresponding recess, be engaged with each other, so that with the pipe of joint in fastening outer insertion of elasticity fastening force; One is arranged on the fixture block that clamps the elastic force that can adjust, dismantle expanded support clamping ring maintenance clamping ring in ground in the annular groove.

The expanded support of described fixture block in clamping annular groove partly is one cylindrical, and its top is provided with an extension that makes things convenient for fixture block to pull out.

The expanded support of described fixture block in clamping annular groove partly is the rectangle or the ellipse of one or four limit fillets, and its top is provided with an extension that makes things convenient for the fixture block rotation, pulls out.On the extension of fixture block driver flutes is arranged, the convenient screwdriver rotation.

Bonding between described fixture block and the clamping ring by colloid, strengthen fixing.

Described clamping ring adopts the spring steel material.

Described have an overcoat that covers clamping ring to be connected on the fittings body.

The elasticity fastening force fastening pipe of pipe joint of the present invention by clamping ring, and clamping ring can keep good sealing effect stably and lastingly with the collapsing and compress of pipe thereupon.In addition, this pipe joint is directly pulled out fixture block just can realize that the pipe installation connects, easy to operate, the efficient height.

Description of drawings

Fig. 1 be the prior art pipe joint partly cut open schematic representation;

Fig. 2 is embodiment's one an of the present utility model structure cross-sectional schematic;

Fig. 3 is embodiment one a clamping ring schematic perspective view;

Fig. 4 is embodiment's two an of the present utility model stereochemical structure cross-sectional schematic;

Fig. 5 is embodiment two the clamping ring and three-dimensional cross-sectional schematic one A of fixture block part;

Fig. 6 is embodiment two the clamping ring and three-dimensional cross-sectional schematic one B of fixture block part;

Fig. 7 is embodiment two the clamping ring and three-dimensional cross-sectional schematic one C of fixture block part;

Fig. 8 is the three-dimensional cross-sectional schematic two of clamping ring and fixture block part;

Fig. 9 is the schematic representation one of the utility model fixture block;

Figure 10 is the schematic representation two of the utility model fixture block.

Embodiment

Below in conjunction with accompanying drawing the utility model is done concrete description.

Specific embodiment one

As Fig. 2, shown in Figure 3, pipe joint of the present utility model comprises that clamping ring 2 and that a fittings body 1, is arranged on interior joint 10 outer rings of fittings body 1 removably is fixed on the fixture block 3 on clamping ring 2 grooves 20.

The interior joint 10 of the assembling pipe 9 that fittings body 1 is provided with is cylindrical bodys of a hollow, can be provided with one, two or more seal groove 11 on its external diameter, present embodiment is provided with two seal grooves 11, and seal groove 11 is provided with the seal ring 4 of respective numbers; On interior joint 10 external diameters one or multi-channel anti-back tooth 12 can be set, joint 10 is withdrawed from by the tight pipe 9 of reed in preventing to insert; Plastics or multiple tubes such as described pipe such as crosslinked polyethylene, polybutylene, plastic-aluminum (steel is moulded) composite pipe; One annular groove 13 is arranged in the end of interior joint 10.

Clamping ring 2 is made by the material that spring steel, bullet titanium etc. has elasticity and rigidity; Clamping ring 2 is a ring bodies, the groove 20 that one axially open is arranged on it, an end face of groove 20 is provided with bump 21, and the other end of groove is provided with corresponding recess 22, be engaged with each other, so that with the pipe 9 of joint 10 in fastening outer insertion of elasticity fastening force; The left side of groove 20 axial direction outwards part one extended loop 29 is set, an inside annular portion 28 is set in the end of extended loop 29, annular portion 28 cooperates with annular groove 13 on the fittings body 1, and clamping ring 2 is fixed on the fittings body 1.Fixture block 3 in assembling on the groove 20 of clamping ring 2 is opened groove 20 expansions by bump 21 on the contact groove 20 and recess 22; Fixture block 3 links to each other partly with clamping ring 2 between, can pass through tackiness agent, metal-to-metal adhesive isocolloid gummed, strengthen fixing.

Specific embodiment two

To shown in Figure 7, pipe joint of the present utility model comprises that a fittings body 1, one clamping ring 2, can adjust, be fixed on with dismantling the overcoat 5 that fixture block 3, on the groove 20 of clamping ring 2 covers clamping ring 2 and be connected on the fittings body 1 as Fig. 4.

Interior joint 10 on the fittings body 1 is cylindrical bodys of a hollow, and its external diameter is provided with two seal grooves 11, and seal groove 11 is provided with corresponding seal ring 4; The anti-back tooth 12 that multiple tracks is arranged on interior joint 10 external diameters, joint 10 is withdrawed from by the tight pipe 9 of reed in preventing to insert, certainly, also can cancel the design of anti-back tooth 12, by prior art be contained in the effect that deformation collars (not shown) in the overcoat 5 reach anti-back; One outside thread 14 is arranged in the bottom of interior joint 10.

Clamping ring 2 is a ring bodies, the groove 20 that one axially open is arranged on it, an end face of groove 20 is provided with bump 21, and the other end of groove is provided with corresponding recess 22, be engaged with each other, so that with the pipe 9 of joint 10 in fastening outer insertion of elasticity fastening force.

Overcoat 5 is a cylindrical shape substantially, and its internal diameter is greater than the external diameter that struts back clamping ring 2; The overcoat 5 right-hand member edges ring part 50 that extends internally, the internal diameter of ring part 50 is a bit larger tham the external diameter of pipe 9; Left end at overcoat 5 is provided with internal thread 51, is connected with outside thread 14 on the fittings body 1; One single face through hole 52 is arranged on overcoat 5 bodies.

The fixture block 3 of assembling struts groove 20 by bump 21 and recess 22 on the contact groove 20 in the groove 20 of clamping ring 2; The expanded support part 30 of fixture block 3 in clamping ring 2 grooves 20 is the rectangle or the ellipse of one or four limit fillets; On the top of fixture block 3 are extensions, and the upper-end surface is provided with the driver flutes 31 of a cross or a word, make things convenient for the rotation of fixture block 3 to reconcile; Fixture block 3 devices are convenient to pulling out of fixture block 3 on the through hole 52 of overcoat 5.Before the link pipe laying, contact with recess 22 with bump 21 on the clamping ring 2 by the long end face of expanded support part 30, clamping ring 2 expansions are maximum, make things convenient for pipe 9 to insert, as shown in Figure 5; After pipe 9 insertions put in place, rotate fixture block 3 by driver flutes 31, the short end face of expanded support part 30 is contacted with recess 22 with bump 21 on the clamping ring 2, clamping ring 2 and pipe 9 are tentatively clamped, as shown in Figure 6, this is very useful on project installation, when pipe 9 length are too short or oversize, or connection type is expanded to maximum with clamping ring when not matching again, make things convenient for pipe 9 to withdraw from, avoided directly extracting fixture block 3 rear tubular members and pipe fixes the defective that can't break away from; Behind the correct pipe 9 of assembling, extract fixture block 3, the groove 20 on the clamping ring 2 further closes up, and pipe is fastening firmly, finishes pipeline and connects, as shown in Figure 7.

As shown in Figure 8, the expanded support part 30 of fixture block 3 is circles, and circular end surface contacts fixing with bump 21 on the clamping ring 2 with recess 22.On construction ground, can directly fixture block 3 be extracted, easier when pipe and joints is installed.

On the mode of extracting fixture block 3, the mode that can take is more, as the top extension of fixture block 3 is made in-line side's bar 39, makes things convenient for pliers to sting the jail and pulls out, as shown in Figure 9; Also can be by other forms of extension be set thereon, as add the convenient supplementary structure of pulling out, as shown in figure 10, the handle 37 that a hole 38, is assemblied on the hole 38 is set on the top of fixture block 3 can makes things convenient for pulling out of fixture block 3.

Pipe joint is provided with the joint that the tight ring type of one or more strap clamps connects according to the structure of joint in addition, as tee pipe fitting, but left and right, last three joints that clamp the ring type connection of facility etc.Above embodiment is illustrative, but not determinate.

Claims

1, a kind of pipe joint comprises that one has the fittings body (1) that assembling connects the interior joint (10) of pipe (9); Seal ring (4) with in the groove that is assemblied in interior joint (10) (11) is characterized in that comprising:

The clamping ring (2) of a trough of belt (20), an end face of groove (20) is provided with bump (21), and the other end is provided with corresponding recess (22), is engaged with each other, so that with the pipe (9) of joint (10) in fastening outer insertion of elasticity fastening force;

One is arranged on the fixture block (3) that can adjust, dismantle the elastic force of ground expanded support clamping ring (2) maintenance clamping ring (2) in clamping ring (2) groove (20).

2, pipe joint as claimed in claim 1, its characteristics are: the expanded support part (30) of fixture block (3) in clamping ring (2) groove (20) is one cylindrical, and its top is provided with an extension that makes things convenient for fixture block (3) to pull out.

3, pipe joint as claimed in claim 1, its characteristics are: the expanded support part (30) of fixture block (3) in clamping ring (2) groove (20) is the rectangle or the ellipse of one or four limit fillets, and its top is provided with an extension that makes things convenient for fixture block (3) to rotate, pull out.

4, pipe joint as claimed in claim 3, its characteristics are: driver flutes (31) is arranged, the convenient screwdriver rotation on the extension of fixture block (3).

5, as the described pipe joint of the one of claim 1 to 4, its characteristics are: bonding between fixture block (3) and the clamping ring (2) by colloid, strengthen fixing.

6, pipe joint as claimed in claim 1, its characteristics are: clamping ring (3) adopts the spring steel material.

7, pipe joint as claimed in claim 1, its characteristics are: an overcoat (5) that covers clamping ring (2) is connected on the fittings body (1).