CN201205583Y - Crimping tool for annulus-pressure pipeline connector - Google Patents
Crimping tool for annulus-pressure pipeline connector Download PDFInfo
- Publication number
- CN201205583Y CN201205583Y CNU2008200065330U CN200820006533U CN201205583Y CN 201205583 Y CN201205583 Y CN 201205583Y CN U2008200065330 U CNU2008200065330 U CN U2008200065330U CN 200820006533 U CN200820006533 U CN 200820006533U CN 201205583 Y CN201205583 Y CN 201205583Y
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- Prior art keywords
- jaw
- crimping
- crimping tool
- press
- jointing
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Abstract
The utility model relates to a circular pressure type press-jointing tool for pipe connectors, which comprises a pair of press-jointing die heads and a connecting unit; wherein, the press-jointing die heads are connected with each other by the connecting unit and can move relative to each other; the press-jointing die heads are provided with jaws, which can be opened and closed along with the press-jointing die heads in order to press a pipe and a pipe connector placed in the jaws together; and the profile of the axial section of the cavity of the jaws is shaped like an arc. The jaws of the press-jointing tool are provided with fixing surfaces. The arc-shaped jaws of the press-jointing tool resolve the defects of stress concentration and easy abrasion caused by sharp edges, thus improving the reliability of pipe connection. Moreover, the fixing surfaces on the jaws of the press-jointing tool can fix the pipe when the jaws of the press-jointing tool initially clamp the pipe, providing reliable fixture in order to ensure press-jointing quality and reduce the defective index.
Description
Technical field
The utility model relates to a kind of crimping tool that encircles the pressure type pipeline connecting parts, especially a kind of jaw that inner chamber comprises curved profile is arranged, locatees reliable crimping tool.
Background technology
Aspect the tubing connection, the pipe fitting tube connection piece that uses crimping tool/utensil will have sealing ring is crimped on tubing, is one of tubing ways of connecting in the prior art, be widely used in water because of it is convenient and reliable, gas, the wet goods pipeline connects, and reaches many fields such as construction.Usually, crimping tool comprises a pair of crimping die head and jockey, but the crimping die head links to each other and relative motion by jockey, have jaw on the crimping die head, jaw can be opened with the motion of crimping die head, closure, thereby tubing and the tube connection piece that is placed in the jaw carried out crimping, they are crimped on together.Crimping tool has scissor and flat roof type etc., and wherein the jaw on the crimping die head can be two lobe formulas or more lobes.Fig. 1 illustrates the schematic diagram of a scissor crimping tool, and as shown in Figure 1, the crimping die head of crimping tool 10 comprises tong arm 100, and jockey comprises pivot, and tong arm 100 is by pivotally connected and can rotate around described pivot, and the head of tong arm has jaw 110.In Fig. 1, schematically illustrated tubing that is crimped of the circle in the jaw 110 of crimping tool 10 and/or tube connection piece are placed in the jaw 110, by the pivoted motion of tong arm, jaw 110 are crimped on folded tubing with tube connection piece thus.Fig. 2 a and 2b illustrate the schematic diagram of a flat roof type crimping tool, and shown in Fig. 2 a and 2b, the crimping die head comprises pincers mould 100 ', and jockey comprises the slide rail (not shown), and the pincers mould moves around by slide rail, and pincers mould 100 ' has jaw 110.Fig. 2 a illustrates pincers mould 100 ' and jaw 110 at open position, Fig. 2 b illustrates the closure state of pincers mould 100 ' and jaw 110, wherein, schematically illustrated tubing that is crimped and/or the tube connection piece that is placed in the jaw 110 of circle among Fig. 2 b in the jaw 110, move up and down by two pincers moulds thus, by the crimping of crimping tool jaw 110, tubing folded in the jaw 110 is crimped on tube connection piece.Fig. 3 a and 3b illustrate the crimping tool of another kind of form, and shown in Fig. 3 a and 3b, the crimping die head comprises a pair of pincers mould 100 "; jockey comprises the slide rail (not shown), and the pincers mould moves around along slide rail, pincers mould 100 " have a jaw 110, wherein, jaw 110 is six lobe formulas.Jaw 110 can be with pincers mould 100 " motion open, closure, to coming the pipe fitting that is placed on is wherein carried out crimping, specifically see also above-mentioned explanation, do not repeat them here.
Fig. 4 illustrates by the schematic diagram of tubing and connector, and wherein, label 200 expressions are crimped tubing, the 300th, tube connection piece, the 400th, seal, connector 300 have seal section 310 and locking section 320, seal section 310 and locking section 320 are enclosed within on the tubing 200, the middle seal 400 of placing.Tong arm head arrow A direction from Fig. 1 that Fig. 5 illustrates in the crimping tool of prior art is seen schematic diagram in the past, and wherein, the head of tong arm 100 includes jaw 110.As shown in Figure 5, the jaw 110 of crimping tool tong arm head has first pressure contact portion 111, with second pressure contact portion 112, during crimping, first pressure contact portion 111 and second pressure contact portion 112 place respectively on the front end 311 and connector locking section 320 of connector seal section 310, in the crimping process, the front end 311 of seal section 310, locking section 320 is distinguished pressurized in first pressure contact portion 111 and second pressure contact portion 112 with the appropriate section of connected tubing 200, after ring is pressed, seal section 310, comprise its front end 311 compressive deformations, seal 400 is squeezed between tubing 200 and the connector seal section 310, the relative part of locking section 320 and connected tubing 20 is compressive deformation together, meshes together, thereby finishes being connected of tubing and its connector.Yet, in the prior art, crimping tool jaw inner chamber profile is similar to step, and the sharp limit of band rib is arranged, shown among Fig. 5 113, because the jaw inner chamber of crimping tool has the sharp limit of band rib, easily produce stress on these sharp limits during in crimping and concentrate wearing and tearing easily, and the jaw after the wearing and tearing is to the crimp quality decline of tubing and connector, crimping is unreliable, thus, may cause the leakage of pipeline.Therefore, the compression tools/utensil that needs the reliable crimping of a kind of crimp quality.
In addition, in the prior art, crimping/compression tools jaw is when the initial position of first clamp spare, just fix for pipe fitting by the contacted with it limit of the jaw 110 of crimping tool, shown among Fig. 1 115, the location is not enough, and pipe fitting slides easily in jaw and deviates from, thereby influence crimp quality, produce waste product.Therefore, need a kind of crimping tool of reliable location, the initial position that crimping tool jaw and pipe fitting are joined can be fixed pipe fitting, not from the jaw slippage, thereby guarantees crimp quality, the rate of reducing the number of rejects and seconds.
Summary of the invention
The purpose of this utility model is to provide a kind of crimping tool that encircles the pressure type pipeline connecting parts, its jaw inner chamber has curved profile, eliminated in the prior art and should concentrate and shortcoming easy to wear owing to sharp limit produces, guaranteed crimp quality, improve the reliability of connecting line crimping, provide reliable pipeline to connect.
The purpose of this utility model also is to provide a kind of crimping tool that encircles the pressure type pipeline connecting parts, be provided with locating surface at jaw, locating surface jaw with just clamp pipe fitting at the beginning of pipe fitting is pressed mutually, pipe fitting is firmly fixing, reliable location is provided, make it be difficult for slippage, thereby guarantee crimp quality, the rate of reducing the number of rejects and seconds.
The utility model is achieved in that a kind of crimping tool that encircles the pressure type pipeline connecting parts, comprise a pair of crimping die head, and jockey, but described crimping die head is by described jockey interconnection and relative motion, wherein, have jaw on the described crimping die head, described jaw can be opened with the motion of described crimping die head, closure, the tubing that will be placed in the described jaw is crimped on tube connection piece thus, it is characterized in that the profile of the inner chamber of described jaw on axial section is curved profile.
According to the utility model, described crimping die head comprises tong arm, and described jockey comprises pivot, and described tong arm is by described pivotally connected and can rotate around described pivot, the head of described tong arm has described jaw, is used for tubing is crimped on tube connection piece.
According to the utility model, described crimping die head comprises the pincers mould, and described jockey comprises slide rail, and described pincers mould connects by described slide rail and can move around along described slide rail, and described pincers mould has described jaw, is used for tubing is crimped on tube connection piece.
According to the utility model, the described jaw of crimping tool is provided with locating surface.
According to the utility model, the described jaw of crimping tool comprises first and second pressure contact portions, it is characterized in that, described locating surface is arranged on described first and/or second pressure contact portion of described jaw.
According to the utility model, respectively be provided with on described first and second pressure contact portions of the described jaw of crimping tool on four locating surfaces and described first and second pressure contact portions described locating surface in correspondence with each other.
The crimping tool of ring pressure type pipeline connecting parts of the present utility model, because its jaw profile has adopted arc, be that crimping tool jaw inner chamber comprises curved profile, eliminated owing to sharp limit produces and to have concentrated and shortcoming easy to wear, provide crimp quality reliable connecting line.In addition, because crimping tool of the present utility model is provided with locating surface at jaw, pipe fitting that will crimping by locating surface is fixed in the jaw, compare with the location, limit of prior art, more reliable location and can be at crimping tool jaw and fixed fitting at the beginning of pipe fitting is pressed mutually can be provided, make it be difficult for slippage, thereby guarantee crimp quality, the rate of reducing the number of rejects and seconds.
Description of drawings
Fig. 1 illustrates a kind of schematic diagram of crimping tool of prior art;
Fig. 2 a and 2b illustrate the schematic diagram of the crimping tool of another kind of prior art
Fig. 3 a and 3b illustrate the schematic diagram of the crimping tool of another kind of prior art
Fig. 4 illustrates by the schematic diagram of tubing and connector;
Fig. 5 illustrates the head schematic diagram that the arrow A direction is seen from Fig. 1 of the crimping tool tong arm of prior art;
Fig. 6 illustrates the schematic diagram according to crimping tool tong arm head of the present utility model that the arrow A direction is seen from Fig. 1;
Fig. 7 illustrates and uses according to the tubing after the crimping tool crimping of the present utility model and the schematic diagram of tube connection piece;
Fig. 8 schematically shows the crimping tool according to an embodiment of the utility model, and jaw is clamp spare just;
Fig. 9 illustrates the partial enlarged drawing of Fig. 8; With
Figure 10 schematically shows according to the tong arm head of an embodiment of the utility model and the jaw on the head.
The specific embodiment
Describe the utility model in detail below in conjunction with accompanying drawing.
According to crimping tool of the present utility model, crimping tool comprises a pair of crimping die head and jockey, but the crimping die head connects and relative motion by jockey, have jaw on the crimping die head, jaw can be opened with the motion of crimping die head, closure, thereby tubing and the tube connection piece that is placed in the jaw carried out crimping, and they are crimped on together, wherein, the jaw inner chamber is a curved profile at the profile of axial section.Thus, eliminated in the prior art sharp limit because of the step in the jaw inner chamber profile and produced and to concentrate and shortcoming easy to wear, guaranteed crimp quality, thereby improved the reliability that pipeline connects.Therefore, compared with prior art, crimping tool of the present utility model can provide more reliable pipeline to connect.
Fig. 6 illustrates the part according to the crimping tool of an embodiment of the utility model.In the present embodiment, crimping tool is scissor (pincer), and the crimping die head comprises a pair of tong arm, the schematically illustrated head part according to crimping tool tong arm of the present utility model that the arrow A direction is seen from Fig. 1 of Fig. 6.As shown in Figure 6, have jaw 110 on the tong arm head, the inner chamber profile of jaw 110 on axial section has curved profile 114, promptly in the utility model, the shape of jaw inner chamber be with the replacement of curved profile step profile of the prior art.
Similarly, except that embodiment shown in Figure 6, crimping tool of the present utility model can comprise the crimping tool/utensil of other type, as the flat roof type crimping tool, etc.According to the utility model, the inner chamber profile of crimping die head jaw comprises curved profile on axial section, in other words, according to the utility model, except that scissor crimping tool, the crimping tool of other type, the jaw of crimping die head, its inner chamber profile comprises curved profile on axial section.
Fig. 7 illustrates and uses according to the tubing after the crimping tool crimping of the present utility model and the schematic diagram of tube connection piece.As shown in Figure 7, tubing seal section 310 after the crimping comprises 311 distortion of its front end, seal 400 is squeezed between the inwall of the outer wall of tubing and connector 300, connector locking section 320 and the distortion of tubing appropriate section, thus tubing 200 is crimped on connector 300.
Fig. 8 schematically shows the crimping tool according to an embodiment of the utility model.As shown in Figure 8, in the present embodiment, the crimping die head is a tong arm 100, and the head of tong arm 100 has jaw 110, jaw 110 is provided with locating surface 120, when jaw 110 and pipe fitting were in the initial position that contacts, promptly at jaw 110 just during clamp spare, locating surface 120 contacted with pipe fitting, clamp pipe fitting, pipe fitting is fixed on jaw 110, and in Fig. 8, the pipe fitting of folder is represented with the circle of jaw 110 in the jaw 110 of tong arm head.
Fig. 9 is the partial enlarged drawing of Fig. 8.When Fig. 9 was shown clearly in crimping tool jaw 110 and has just clipped the initial position of pipe fitting, crimping tool was that the locating surface 120 with jaw 110 contacts with pipe fitting (circle in the jaw 110), and pipe fitting is fixed in the jaw 110.Can more be clear that from Fig. 9, just during clamp spare, be to fix folded pipe fitting by the locating surface 120 that is provided with on the jaw 110 at crimping tool jaw 110, rather than resemble in the prior art and fix with limit 115 (shown in the dotted line).Owing on jaw, be provided with locating surface, make that at crimping tool locating surface contacts pipe fitting earlier, clamps pipe fitting, thereby folded pipe fitting is fixed in the jaw 110, makes by clamp spare and does not slide with respect to jaw, does not deviate from just during clamp spare.Therefore, compare with the mode that fixes with the limit in the prior art, locating surface can provide more reliable location and fixing, thereby has guaranteed crimp quality.
Figure 10 schematically show according to the pressure welding mold head portion of an embodiment of the utility model and on jaw.As shown in Figure 8, in the present embodiment, the crimping die head comprises tong arm 100, the tong arm head has jaw 110, jaw 110 has first pressure contact portion 111 and second pressure contact portion 112, and wherein, first pressure contact portion 111 and second pressure contact portion 112 can correspond respectively to the corresponding crimping of tubing/tube connection piece position, as the locking section of connector and the front end of seal section, or the like.Like this, when crimping, the appropriate section that first pressure contact portion 111 and second pressure contact portion 112 can push connector and tubing respectively makes it produce distortion, thereby tubing is crimped on connector.In the embodiment shown in fig. 10, crimping tool jaw of the present utility model is respectively arranged with locating surface 120 on first pressure contact portion 111 and second pressure contact portion 112, be used for jaw when crimping tool when initially joining with pipe fitting, clamp pipe fitting, thereby play fixed fitting (tubing and/or connector).Obviously, also can locating surface be set at any one pressure contact portion.
Continuation is with reference to Figure 10, and crimping tool comprises a pair of crimping die head of tong arm that is, the head of each tong arm has jaw 110, and jaw is divided into two lobes, Figure 10 illustrate one of them tong arm head and on half jaw.As shown in figure 10, in the present embodiment, further, first and second pressure contact portions 111 and 112 of every half of jaw are provided with two locating surfaces 120, lay respectively at the position of keeping to the side of semicircle jaw.In other words, on first pressure contact portion 111 of jaw, four locating surfaces 113 are arranged, on second pressure contact portion 112 of jaw, four locating surfaces 120 are arranged also, four locating surfaces 120 on jaw first pressure contact portion 111 and four locating surfaces 120 on jaw second pressure contact portion 112 are in correspondence with each other, pipe fitting can be clipped in the jaw of crimping tool firmly, make pipe fitting be difficult for slippage, laid stable basis for high-quality crimping next is shaped.
Though, first and second pressure contact portions that the foregoing description is illustrated in jaw respectively are provided with four locating surfaces in correspondence with each other, but, say for those skilled in the art, can select the locating surface of other quantity for use, other position/position that locating surface also can be arranged on jaw is conspicuous, can select the locating surface of more or less quantity further, as the locating surface number optional two, three, or more than four, or the like, and first locating surface that can be provided with varying number on pressure contact portion and second pressure contact portion, the position of locating surface on first pressure contact portion and second pressure contact portion can optionally be provided with respectively, and be not corresponding.Also have, the size of locating surface, shape can depend on the circumstances.In a word, the number of locating surface, position distribution, size, shape etc. can be depended on the circumstances by those skilled in the art, as deciding according to the size of crimping tool jaw, lobe number, processing, technology or the like.
Though below in conjunction with the accompanying drawings, and according to an embodiment the utility model is described in detail, those of ordinary skill obviously can be recognized in the art, aforementioned description only is for the utility model is described, and non-limiting the utility model.In design scope of the present utility model, can also make multiple variation or modification to previous embodiment, these change and modification all should belong to protection domain of the present utility model.
Claims (7)
1, a kind of crimping tool that encircles the pressure type pipeline connecting parts, comprise a pair of crimping die head, and jockey, but described crimping die head wherein, has jaw on the described crimping die head by described jockey interconnection and relative motion, described jaw can be opened with the motion of described crimping die head, closure, the tubing that is used for being placed on described jaw is crimped on tube connection piece, it is characterized in that the profile of the inner chamber of described jaw on axial section is curved profile.
2. crimping tool as claimed in claim 1, it is characterized in that, described crimping die head comprises tong arm, described jockey comprises pivot, described tong arm is by described pivotally connected and can rotate around described pivot, the head of described tong arm has described jaw, is used for tubing is crimped on tube connection piece.
3. crimping tool as claimed in claim 1, it is characterized in that, described crimping die head comprises the pincers mould, described jockey comprises slide rail, described pincers mould connects by described slide rail and can move around along described slide rail, described pincers mould has described jaw, is used for tubing is crimped on tube connection piece.
4, as any one described crimping tool of claim 1-3, it is characterized in that described jaw is provided with locating surface.
5, crimping tool as claimed in claim 4 is characterized in that, described jaw comprises first and second pressure contact portions, and described locating surface is arranged on described first and/or second pressure contact portion of described jaw.
6, crimping tool as claimed in claim 5 is characterized in that, respectively is provided with three or three above locating surfaces on described first and second pressure contact portions of described jaw.
7, crimping tool as claimed in claim 6 is characterized in that, the described locating surface that is provided with on described first and second pressure contact portions in correspondence with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200065330U CN201205583Y (en) | 2008-02-25 | 2008-02-25 | Crimping tool for annulus-pressure pipeline connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200065330U CN201205583Y (en) | 2008-02-25 | 2008-02-25 | Crimping tool for annulus-pressure pipeline connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201205583Y true CN201205583Y (en) | 2009-03-11 |
Family
ID=40464651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200065330U Expired - Lifetime CN201205583Y (en) | 2008-02-25 | 2008-02-25 | Crimping tool for annulus-pressure pipeline connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201205583Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128328A (en) * | 2011-03-30 | 2011-07-20 | 杨三龙 | Connection structure for quickly locking metal pipe fitting and special calipers thereof |
| CN109985946A (en) * | 2017-12-31 | 2019-07-09 | 天津正和瑞科技有限公司 | A kind of jam plate workpiece radian press-forming machine |
| CN111085962A (en) * | 2020-01-03 | 2020-05-01 | 广州市锐铭金属制品有限公司 | Six-petal ring-pressing pipe fitting crimping device |
-
2008
- 2008-02-25 CN CNU2008200065330U patent/CN201205583Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128328A (en) * | 2011-03-30 | 2011-07-20 | 杨三龙 | Connection structure for quickly locking metal pipe fitting and special calipers thereof |
| CN109985946A (en) * | 2017-12-31 | 2019-07-09 | 天津正和瑞科技有限公司 | A kind of jam plate workpiece radian press-forming machine |
| CN111085962A (en) * | 2020-01-03 | 2020-05-01 | 广州市锐铭金属制品有限公司 | Six-petal ring-pressing pipe fitting crimping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090311 |
|
| CX01 | Expiry of patent term |