CN2731233Y - Pipe joint - Google Patents
Pipe joint Download PDFInfo
- Publication number
- CN2731233Y CN2731233Y CN 200420074052 CN200420074052U CN2731233Y CN 2731233 Y CN2731233 Y CN 2731233Y CN 200420074052 CN200420074052 CN 200420074052 CN 200420074052 U CN200420074052 U CN 200420074052U CN 2731233 Y CN2731233 Y CN 2731233Y
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- Prior art keywords
- opening
- band
- cylindrical body
- pipe
- pipe joint
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- Expired - Lifetime
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Abstract
The utility model provides a pipe joint. The pipe joint makes a clamping belt and a cylinder with an opening not generate mutual rotation when clamping the clamping belt and decreasing the diameter of the cylinder with an opening, so the pipe joint can reliably and evenly decrease the diameter of the cylinder with an opening without offset. The connection of the pipe joint has high reliability, so the pipe joint is suitable for connecting water feeding and hot water feeding pipelines made of synthetic resin, such as polyethylene or polybutene. The pipe joint is composed of a pipe inserting part inserted into a connected pipe body, an opening part arranged in the outer side of the pipe inserting part along the axial direction of the main body of the cylinder, the cylinder with an opening, whose diameter can be reduced when the cylinder is clamped from the outer periphery surface, and the clamping belt arranged in the outer side of the cylinder with an opening and clamping two end parts of a belt body through a screw bolt and a nut. The clamping belt is provided with a bulge, and the cylinder with an opening is provided with a notch.
Description
Technical field
The present invention relates to a kind of pipe joint that is used for soft synthetic resin pipes such as crosslinked polyethylene pipe or Polybutylene Pipe.
Background technique
In the past, about connecting the pipe joint of plastic conduit, a kind of structure of pipe joint is the wall opening vertically that the outer circumferential face in the pipe insertion part is provided with cylindrical body, the cylindrical body of the band opening of the trip ring shape of meeting diameter reduction when outer circumferential face compresses, the cylindrical outside at this band opening forms flange to the two ends of the banded main body that is rolled into tubular, formation is by the close mutually clamping band that reduces banded main diameter of flange, use bolt etc. clamps between this flange, dwindle the diameter that clamps band, thereby dwindle the cylindrical diameter of above-mentioned band opening, the cylindrical body of band opening makes the connected tube of the pipe insertion part of insertion tube joint closely be connected with the pipe insertion part, obtains stagnant water effect.
Such as, pipe joint in the present embodiment, the casing component 44 that the trip ring shape of raised line 441 is arranged in the 1st joint 41 and the 2nd joint 42 peripheries, in chimeric in week, and the periphery of this casing component 44 chimeric by bolt 45 can diameter reduction the clamping member 46 of trip ring shape.Therefore, as shown in Figure 2, when the 1st joint 41 is connected with past pipe 2, chimeric end between the 1st joint 41 and casing component 44 toward pipe 2, dwindle the diameter of the clamping member 46 of band opening then by clamping bolt 45, the 1st joint 41 and casing component 44 can be clamped toward the end (for example, with reference to patent documentation 1) of pipe 2.
Above-mentioned pipe joint be can 2 pipes of parallel connection pipe joint, when connecting connected tube, dwindle the diameter of clamping member by clamping bolt, the raised line that utilization is located at this clamping member inwall dwindles the diameter of casing component, clamp the connected tubes such as crosslinked polyethylene pipe that tight bundle inserts at pipe jointing part by casing component and pipe jointing part, performance Drop-proof ability and sealability.By above-mentioned pipe joint, pipe jointing part forever chokes crosslinked polyethylene pipe, so can realize high connecting reliability.
Patent documentation 1: the spy opens flat 6-42686 communique; Paragraph numbering 0014, Fig. 1, Fig. 2
In the pipe joint of similar said structure, near the pipe of casing component (cylindrical body that is equivalent to band opening of the present invention) inserts inside, be provided with and be used for pipe that whether Visual Confirmation inserted the pipe insertion part to connected tube infalliblely and insert and confirm to use otch.This pipe inserts the opening portion of confirming to be also used as with otch the casing component of trip ring shape.
On the other hand, clamping member (being equivalent to clamping band of the present invention) also is the trip ring shape, only fits loosely in the outside of casing component, so when clamping with bolt etc., clamping member or casing component rotation cause position deflection easily.If position deflection, according to the posture of clamp operation, the opening portion of casing component or pipe insert to be confirmed with incision in position that can't be visual, can't the Visual Confirmation clamped condition, occur to clamp not exclusively and cause leaking, with and connection reliability be not very high.
And, if the opening portion of above-mentioned casing component moves to the opposite location place of bolt etc., then need bigger torque just can dwindle the diameter of connected tube, improve connection reliability, just must strengthen clamping force.
Summary of the invention
The purpose of this invention is to provide a kind of pipe joint, when the clamping band dwindles the cylinder diameter of band opening, make and clamp band and be with the cylindrical body of opening not rotate each other, thereby position deflection do not occur and can evenly reduce cylinder diameter reliably with opening, and connection reliability is higher, is suitable for connecting the water and heat provision waterpipe that uses plastic conduits such as crosslinked polyethylene or polybutylene etc. etc.
The structure characteristic of the present invention's 1 described pipe joint (invention 1) is: by inserting the pipe insertion part that connects body (claiming connected tube later on), be located at the outside, this pipe insertion part and have along the axial opening portion of cylindrical body, when outer circumferential face clamps the cylindrical body of the band opening of reduced, and be located at the cylindrical body outside of this band opening and constitute by the clamping band that screw bolt and nut clamps banded main body two ends, on clamping is with, be provided with lug boss, on the cylindrical body of band opening, be provided with otch.
The present invention's 2 described pipe joints (invention 2) structure characteristic is: by the pipe insertion part of inserting connected tube, be located at the outside, this pipe insertion part and have along the axial opening portion of cylindrical body, when outer circumferential face compresses the cylindrical body of the band opening of reduced, and be located at the cylindrical body outside of this band opening and constitute by the clamping band that screw bolt and nut clamps banded main body two ends, the cylindrical body of band opening is provided with lug boss, clamps to be with to be provided with otch.
As invention 1 or invent 2 connected tubes that are suitable for, clad pipe, the polyvinyl chloride that can enumerate crosslinked polyethylene pipe, Polybutylene Pipe, polyethylene pipe, polyethylene and crosslinked polyethylene are pitch tube etc.About these plastic conduits, also can use the composite pipe that on tube wall, uses metallic material such as aluminium simultaneously.About inventing 1 or the kind of inventing 2 pipe joint, turncock elbow, stopper (plug), inipple (nipple), the base (header) of male joint, female coupling, cover joint (socket), base male elbow, the tube coupling (union) of living, turncock outer tube joint, band base arranged.
When connecting connected tube, dwindle the diameter that clamps band by screw bolt and nut is mandatory, thereby dwindle the cylindrical diameter of band opening.Therefore, clamp the shape after the cylindrical body of being with or being with opening must keep being out of shape, so the preferred metals such as stainless steel, aluminium, iron, copper, brass that use.
Inside in the pipe insertion part is being provided with the barrier that determines the connected tube insertion position, along the insertion part circumference annular slot is being set in the front side of barrier.Barrier restriction insertion position so that the pipe insertion part when inserting connected tube the pipe end of connected tube become assigned position.The cylindrical body of slot part and band opening cooperates, thereby prevents to move axially with the cylindrical of opening.
The outside of the pipe insertion part of the connection connected tube of pipe joint, the cylindrical body of the band opening of trip ring shape is housed, the cylindrical body of the band opening of this trip ring shape be provided with pipe insert to confirm with otch and have vertically opening portion on the cylindrical body, reduced when outer circumferential face compresses.To raised line, raised line was inserted in the groove of above-mentioned pipe insertion part, to mutually combine in a cylindrical end of band opening was provided with.Between the cylindrical body of being with opening and pipe insertion part, insert connected tube.
About inventing 1 pipe joint, be provided with on the cylindrical body of band opening can insert clamp with on the otch of projection, this clampings band is installed on the cylindrical body of being with opening.Otch can be the shrinkage pool shape, also can be the through hole shape, has projection of making and otch in a word and coincide, and the function that the position between the cylindrical body of band opening and the clamping band does not along the circumferential direction relatively move gets final product.Therefore, also pipe can be inserted and confirm to replace this otch, insert therein and embed projection with otch.Therefore, in the following description, so-called " otch " is meant any one in above-mentioned " otch " or " pipe inserts and confirms to use otch ".
As invent shown in 2, also can on the cylindrical body of band opening, be provided with projection, on clamping is with, be provided with otch, and insert.
On the cylindrical body of band opening when projection is set, also can be for example on the wall of the cylindrical opening portion of band opening or columnar portion the part otch is set, and be bent upwards, outwards hit the impact vestige, outside the member of making in addition is fixed on, as projection.
On the cylindrical body of band opening, except that opening portion, the position is provided with otch near the barrier that is equivalent on the joint.Whether top that can the Visual Confirmation connected tube by this otch has been inserted into and the barrier position contacting of pipe inboard, insertion part reliably.Because this otch is not located at opening portion, so even the operator owing to situation of attended operation etc. is in can not visual opening portion the position, also can confirm the position of the tube end of connected tube from otch.If position that can the Visual Confirmation tube end, then otch can be taked Any shape, uses the long long hole shape of circle or long axis direction etc. more.
Except opening portion, otch can be located at any position, quantity also without limits, such as, if be provided with roughly rectangular two positions of the cylindrical opening portion of band opening, when then the rotating clamp taut band is with fastening inserting bolt (aftermentioned), if the hand difference that operator's operation posture is become reconciled and made, otch always has one in position that can be visual, so very convenient.
When the opening portion that is provided with on the cylindrical body of band opening, the cylindrical body of compression band opening opening portion is dwindled or be out of shape, dwindle the cylindrical diameter of being with opening easily.And inside chimb is embedded in the groove of managing the insertion part, prevents to move axially with the cylindrical body of opening.
On the cylindrical body of band opening, a plurality of raised lines are set on the inner peripheral surface of its cylindrical body sometimes, and along the circumferential direction are set as ring-type.The effect of this raised line is: when the cylindrical body that use to clamp strap clamp taut band opening makes its reduced (aftermentioned), according to the form that produces lines corresponding to raised line the connected tube below the cylindrical body is pressed into ring-type, makes its distortion.Therefore, the connected tube part obviously is out of shape with ring-type, and diameter obviously dwindles, closely be connected with the pipe insertion part, thus be used for wishing being connected reliably occasion with stagnant water effect more, but may not be necessary.
In the cylindrical outside of band opening the clamping band is installed.Clamp and be with the two ends that clamp banded main body by screw bolt and nut, generally speaking, form flange, form the trip ring shape on the cylindrical outer circumferential face that is arranged on above-mentioned band opening, and it is relative to separate the gap between the flange at the two ends of banded main body.On aspectant flange through hole is set, uses these through holes and clamp with screw bolt and nut, then flange is close mutually, clamps the band diameter reduction, clamps the cylindrical body of the band opening below it, has the function of the cylinder diameter that dwindles the band opening.
Clamping with on opening portion, be the gap of aspectant flange, the same with opening portion on the cylindrical body of band opening, by the dwindling, be out of shape of opening portion, dwindle clamping the diameter of being with comparalive ease.
In invention 1 pipe joint, the banded main body that clamps band is provided with projection, and this projection can be inserted into the otch on the cylindrical body of above-mentioned band opening.That is, outstanding downwards these projectioies that form of the part of banded main body for example can be partial cut-out and be bent downwardly formation on banded main body and lateral margin thereof, perhaps form projection and are bent downwardly formation etc. to the side from banded main body.
The width of projection is to embed the width that breaks away from freely in the otch on the cylindrical body of above-mentioned band opening.But generally speaking, the width of opening portion is greater than the width of otch, sometimes also be inserted into opening portion, but when the cylinder diameter of band opening dwindled, it is narrow that opening portion just becomes, might influence dwindling of diameter, can not be opening portion so must be noted that the insertion position.And its length of stretching out is for being inserted in the length in otch or the otch.In the time of in being inserted in otch, its length will guarantee can confirm from pipe inboard, insertion part the insertion position of connected tube.
The projection of clamping band is inserted the otch on the cylindrical body of being with opening, clamps to be with the cylindrical outside that is installed in the band opening.Therefore, even clamp band, dwindle the cylindrical diameter of being with opening by screw bolt and nut, the cylindrical relative position that clamps band and band opening does not change yet.
That is because do not change the relative position of the cylindrical opening portion of the opening portion that clamps band and band opening, so can be on one side from the clamped condition of the cylindrical opening portion of opening portion or otch visualization band opening, on one side clamp.
In the pipe joint of invention 2, on the cylindrical body of band opening, projection is set, clamping is with otch is set, because its projection is the same with the relation of otch, omits explanation here.
If the position relation of the screw bolt and nut that is provided with on the flange of the cylindrical opening portion of band opening and clamping band is to be 90 degree approximately, when taking operation posture during clamping, because see opening portion or otch easily, so it is very convenient, key is can be visual, so limited angular is not spent about 90.
The step of using pipe joint of the present invention to connect connected tube is described.At first between the cylindrical body of the pipe insertion part of pipe joint and band opening, insert connected tube, whether correctly be inserted into barrier position contacting with pipe joint inside from the tube end of the cylindrical opening portion of band opening or otch Visual Confirmation connected tube.
Be inserted into assigned position if confirm connected tube, rotating clamp taut band in a circumferential direction then moves to the position that the screw bolt and nut that clamps on the flanged pin screws in easily to it.Clamp projection on the cylindrical body of band or band opening insert and imbed otch on the cylindrical body of band opening or clamping with on otch, if so rotating clamp taut band, the cylindrical relative position relation that clamps band and band opening does not change thereupon, the cylindrical body of moving belt opening along the circumferential direction around connected tube.
Otch is arranged on the position different with opening portion, so can both also move by the above-mentioned tube end that whether drives connected tube that moves of visualization by arbitrary position of otch or opening portion.
Be positioned at assigned position if confirmed the tube end of connected tube, then clamp the screw bolt and nut on the flange of being with.Clamp band, dwindle the cylindrical diameter of being with opening, the cylindrical body of band opening is crimped on connected tube on the pipe insertion part.
Pipe joint of the present invention, the relative position of the opening portion of the cylindrical opening portion of band opening and clamping band can not move because of clamp operation, and from otch can the Visual Confirmation connected tube tube end, so can when confirming jam, carry out clamp operation.Therefore, its connection reliability height is applicable to the connection of the water supply, heat supply waterpipe etc. of plastic conduits such as using crosslinked polyethylene or polybutylene etc.
Description of drawings
Fig. 1 represents to invent the oblique drawing that a routine pipe joint of 1 resolves into parts.
Fig. 2 represents the oblique drawing of a routine pipe joint member of ssembly drawing 1.
The half side-view figure of one routine pipe joint of Fig. 3 presentation graphs 1.
Fig. 4 represents the projection on the annular body side of an example clamping band is embedded the profile of the state of the cylindrical otch of being with opening.
Fig. 5 represents to invent the cylindrical body of band opening of a routine pipe joint of 2 and the component diagram of clamping ring.
Fig. 6 represents the sectional view of of the present invention one routine pipe joint tangent plane direction.
Fig. 7 represents that an example clamps the oblique drawing of band.
Among the figure: the 1-pipe joint, 2-manages insertion part, 21-barrier, the 22-sealing is with sealing 23-groove, the cylindrical body of 3-band opening, 31-otch, 32-raised line, the 33-opening portion, 4-clamps band, the 41-cylindrical body, 411-projection, 42, the 43-flange, 421,431-screw bolt and nut, the 422-through hole, 44-opening portion, P-connected tube.
Embodiment
Below, with reference to accompanying drawing, pipe joint of the present invention is described.In the present embodiment, projection is set, the cylindrical otch of band opening is described as the situation that otch uses, but this example is not represented all situations certainly with lateral margin in the cylindrical body that clamps band.
Fig. 1 represents to invent the oblique drawing that a routine pipe joint of 1 resolves into parts.Fig. 2 represents the oblique drawing of a routine pipe joint member of ssembly drawing.The half side-view figure of one routine pipe joint of Fig. 3 presentation graphs 1.Fig. 4 represents the projection on the annular body side of an example clamping band is embedded the profile of the state of the cylindrical otch of being with opening.Fig. 5 represents to invent the cylindrical body of band opening of a routine pipe joint of 2 and the component diagram of clamping ring.Fig. 6 represents the sectional view of of the present invention one routine pipe joint tangent plane direction.Fig. 7 represents that an example clamps the oblique drawing of band.
As Fig. 1～shown in Figure 4, the pipe insertion part 2 of pipe joint 1 along the circumferential direction forms the flexuose raised line, can prevent that the connected tube P of insertion tube insertion part 2 from coming off.The inside of pipe insertion part 2 is provided with barrier 21, is provided for the sealing configuration 22 of sealing in case of necessity.
Along the barrier 21 of pipe 2 inside, insertion part, around pipe insertion part 2, be provided with the groove 23 of ring-type.When pipe insertion part 2 was inserted among the connected tube P, barrier 21 limited its insertion position, makes the pipe end of connected tube P terminate in assigned position.In flange 32 embedded grooves 23 of the cylindrical body 3 of band opening, prevent to move axially with the cylindrical body 3 of opening.
In the outside of managing insertion part 2, the cylindrical body 3 of the band opening that is provided with otch 31 is installed.One end of the cylindrical body 3 of band opening is provided with inside raised line 32, axially forms opening portion 33 on cylindrical body, forms the trip ring shape.Between the cylindrical body 3 of being with opening and pipe insertion part 2, insert connected tube P.
By otch 31 or opening portion 33, whether top that can Visual Confirmation connected tube P has been inserted into and barrier 21 position contacting of pipe 2 inboards, insertion part.This otch 31 is not located on the opening portion 33, so even the operator because attended operation etc. opening portion 33 place can not be visual the position, also can be from the position of otch 31 affirmation connected tube P tube ends.
If position that can Visual Confirmation connected tube P, otch 31 can adopt Any shape.As shown in Figure 4, be axially long rectangular cutout shape in the present embodiment.
In cylindrical body 3 outsides of band opening clamping is installed and is with 4, this clamping is with 4 to be the opening ring-type, and the two ends of its cylindrical body 41 are provided with the flange 42,43 that is used for clamp operation.As shown in Figure 7, by methods such as welding nut 431 is being set in clamping on 4 flange 43.Through hole 422 is arranged on the flange 42.Bolt 421 is inserted logical this through hole and can be twisted and is combined in the above-mentioned nut 431.By tighting a bolt 421, make flange 42 and flange 43 approaching, reduce to clamp diameter, thereby clamp the cylindrical body 3 of the band opening below it and reduce its diameter with 4.
As shown in Figure 7, be provided with projection 411 on 4 cylindrical body 41 in clamping, this projection 411 can be inserted in the otch 31 of cylindrical body 3 of above-mentioned band opening.Projection 411 is that the part of cylindrical body 41 is given prominence to formation to the side, and the width of projection 411 is to embed the width that breaks away from freely in the otch 31 on the cylindrical body 3 of above-mentioned band opening.And its length of stretching out will make it can insert in the otch 31, and can confirm the insertion position of connected tube P from the inboard, pipe insertion part of otch 31.
Embed the otch 31 of the cylindrical body 3 of band openings by projection 411 with cylindrical body 41 sides, clamping with 4 outsides (with reference to Fig. 6) that are installed in the cylindrical body 3 of band opening.Therefore, even be with 4 by bolt 421 and nut 431 clampings, thereby reduce the diameter with the cylindrical body 4 of opening, clamping is with 4 and be with the relative position of the cylindrical body 3 of opening also not change.
Clamping is with being opening portion 44 between 4 the flange 42,43, and the same with the opening portion 33 of the cylindrical body 3 of being with opening during with bolt 421 and nut 431 grip flange 42 and flange 43, opening portion 44 can dwindle, be out of shape, and can more easily reduce to clamp the diameter with 4.
In the mode of execution of Fig. 1～Fig. 5, the opening portion 33 of the cylindrical body 3 of band opening is about 90 degree with the position relation that clamps with bolt 421 that is provided with on 4 the flange 42,43 and nut 431.Certainly, as previously mentioned, as long as can be visual just passable, its angle also be not limited to about 90 degree.
Claims (2)
1, a kind of pipe joint, it is characterized in that, by insertion be connected body the pipe insertion part, be arranged on the outside of this pipe insertion part and along cylindrical body axially by the cylindrical body of opening portion and the band opening that diameter can dwindle when outer circumferential face clamps, be arranged on the cylindrical body outside of this band opening and form by the clamping band that screw bolt and nut clamps banded main body two ends, clamping is with and is provided with projection, and the cylindrical body of band opening is provided with otch.
2, a kind of pipe joint, it is characterized in that, by insertion be connected body the pipe insertion part, be arranged on the outside of this pipe insertion part and along cylindrical body axially by the cylindrical body of opening portion and the band opening that diameter can dwindle when outer circumferential face compresses, be arranged on the cylindrical body outside of this band opening and form by the clamping band that screw bolt and nut clamps banded main body two ends, the cylindrical body of band opening is provided with projection, clamps to be with to be provided with otch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420074052 CN2731233Y (en) | 2004-08-13 | 2004-08-13 | Pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420074052 CN2731233Y (en) | 2004-08-13 | 2004-08-13 | Pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2731233Y true CN2731233Y (en) | 2005-10-05 |
Family
ID=35051569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420074052 Expired - Lifetime CN2731233Y (en) | 2004-08-13 | 2004-08-13 | Pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2731233Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679071A (en) * | 2012-05-31 | 2012-09-19 | 开平市顶尖管业有限公司 | Hose connecting structure |
| CN104019299A (en) * | 2014-05-20 | 2014-09-03 | 李理 | Fuel tank oil outlet device used for excavator |
-
2004
- 2004-08-13 CN CN 200420074052 patent/CN2731233Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679071A (en) * | 2012-05-31 | 2012-09-19 | 开平市顶尖管业有限公司 | Hose connecting structure |
| CN104019299A (en) * | 2014-05-20 | 2014-09-03 | 李理 | Fuel tank oil outlet device used for excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140813 Granted publication date: 20051005 |