CN203686425U - Combination joint - Google Patents
Combination joint Download PDFInfo
- Publication number
- CN203686425U CN203686425U CN201420009127.5U CN201420009127U CN203686425U CN 203686425 U CN203686425 U CN 203686425U CN 201420009127 U CN201420009127 U CN 201420009127U CN 203686425 U CN203686425 U CN 203686425U
- Authority
- CN
- China
- Prior art keywords
- joint
- bar portion
- end portion
- built
- depressed part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims abstract description 13
- 230000000994 depressogenic effect Effects 0.000 claims description 29
- 238000005242 forging Methods 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 10
- 230000013011 mating Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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- Forging (AREA)
Abstract
The utility model relates to a combination joint. The combination joint comprises a U-shaped end portion and a hollow rod, wherein the top end of the rod is provided with a clamping groove structure comprising a boss portion, a first concave portion and a first step which are sequentially arranged from top to bottom, and the first step, the boss portion and the first concave portion are sequentially distributed from large to small in external diameter; the bottom of the end portion is provided with an opening, the internal diameter of the opening is matched with the external diameter of the boss portion; the end portion and the rod are fixedly connected with each other in a pressing riveting mode. According to the combination joint, the end portion is provided with the opening, the rod is provided with the clamping groove structure matched with the opening, the boss portion stretches into the opening in a pressing riveting process until the upper surface of the first step makes contact with the lower surface of the end portion, pressing riveting continues to be conducted so that the end portion can generate plastic deformation, the first concave portion is filled with materials of the end portion, and the end portion and the rod are in fixed connection and sealed with each other.
Description
Technical field
The utility model relates to pipe joint field, relates in particular to a kind of built-up joint.
Background technique
In oil circuit, gas circuit, oil pipe and the sensor of automobile, conventionally need to use joint, the structure of described joint as shown in Figure 1, the bar portion 2 of the hollow that comprises the end 1 of U-shaped and be communicated with 1 bottom, described end, described end 1 and bar portion 2 are one-body molded, in manufacture process, need to use Multi-shaft numerical control lathe to carry out integrated turning processing, then carry out surface treatment, cost is high, long processing time, difficulty of processing are large; In the process of cutting, can produce a large amount of iron filings, cause waste and the befouling environment of resource.
Existing combined joint mostly is and is threaded, and need in end 1 and bar portion 2, process respectively the screw thread of mutual coupling, and end 1 in use easily occurs the phenomenon that gets loose after being threaded connection with bar portion 2, causes pipeline to occur leakage problems.
Model utility content
The utility model provides a kind of built-up joint, to cut down finished cost, to avoid Seepage simultaneously.
For solving the problems of the technologies described above, the utility model provides a kind of built-up joint, comprise the end of U-shaped and the bar portion of hollow, the top of described bar portion is provided with notch, described notch comprises the boss part, the first depressed part and the first step that are arranged in order from top to bottom, and three arranges and is followed successively by first step, boss part and the first depressed part according to the descending order of outside dimension; The bottom of described end is provided with an opening portion, and the internal diameter of described opening portion and the external diameter of described boss part match; Described end is fixedly connected with by the mode of pressing with bar portion.
Preferably, described end adopts aluminium material to make; Described bar portion adopts carbon steel material to make.
Preferably, described end adopts the mode of forging and turning to make; Described bar portion adopts the mode of forging and stamping to make.
Preferably, described first step below is also provided with second step, and described second step is connected to center section part, and the external diameter of described second step is greater than the external diameter of described center section part.
Preferably, described center section part is connected with rear portion by the second depressed part, and described center section part, the second depressed part and rear portion are followed successively by center section part, rear portion and the second depressed part according to the descending arrangement of outside dimension.
Preferably, described the second depressed part is connected by an inclined-plane with described rear portion.
Compared with prior art, the built-up joint that the utility model provides, comprise the end of U-shaped and the bar portion of hollow, the top of described bar portion is provided with notch, described notch comprises the boss part, the first depressed part and the first step that are arranged in order from top to bottom, and three arranges and is followed successively by first step, boss part and the first depressed part according to the descending order of outside dimension; The bottom of described end is provided with an opening portion, and the internal diameter of described opening portion and the external diameter of described boss part match; Described end is fixedly connected with by the mode of pressing with bar portion.The utility model is by arranging opening portion in end, the notch mating with opening portion is set in bar portion, press in process, described boss part stretches in opening portion, until the upper surface of described first step and the lower surface of end contact, continue to press, make end produce plastic deformation, and then the material that makes end is filled in described the first depressed part, realize being fixedly connected with and sealing between end and bar portion.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art middle joint;
Fig. 2 is the structural representation (before assembling) of the built-up joint of the utility model one embodiment;
Fig. 3 is the structural representation (after assembling) of the built-up joint of the utility model one embodiment.
In Fig. 1: 1-end, 2-bar portion;
In Fig. 2～3: 10-end, 11-opening portion, 20-bar portion, 21-boss part, 22-the first depressed part, 23-first step, 24-second step, 25-center section part, 26-the second depressed part, 27-inclined-plane, 28-rear portion.
Embodiment
For making above-mentioned purpose of the present utility model, feature and advantage can be more clear understandable, below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.It should be noted that, the utility model accompanying drawing all adopts the form of simplification and all uses non-ratio accurately, only in order to convenient, aid illustration the utility model embodiment's object lucidly.
The built-up joint that the utility model provides, as shown in Fig. 2～3, comprise the end 10 of U-shaped and the bar portion 20 of hollow, the top of described bar portion 20 is provided with notch, described notch comprises the boss part 21, the first depressed part 22 and the first step 23 that are arranged in order from top to bottom, and three arranges and is followed successively by first step 23, boss part 21 and the first depressed part 22 according to the descending order of outside dimension; The bottom of described end 10 is provided with an opening portion 11, and the external diameter of the internal diameter of described opening portion 11 and described boss part 21 matches; Described end 10 is fixedly connected with by the mode of pressing with bar portion 20.The utility model is by arranging opening portion 11 in end 10, in bar portion 20, the notch mating with opening portion 11 is set, press in process, described boss part 21 stretches in opening portion 11, until the upper surface of described first step 23 contacts with the lower surface of end 10, continue to press, make end 10 produce plastic deformation, and then the material that makes end 10 is filled in described the first depressed part 22, realize being fixedly connected with and sealing between end 10 and bar portion 20.
Preferably, described end 10 adopts aluminium material to make; Described bar portion 20 adopts carbon steel material to make.The bar portion 20 that adopts carbon steel material to make, its boss part 21 is comparatively firm, not yielding, avoids producing deformation in the process of pressing; The end 10 that adopts aluminium material to make, quality is softer, can better realize plastic deformation, and the material of end 10 is filled in the first depressed part 22, the good airproof performance pressing after connecting.
Preferably, described end 10 adopts the mode of forging and turning to make; Described bar portion 20 adopts the mode of forging and stamping to make, and processing cost is low, and efficiency is high, and can avoid the waste of material as far as possible.
Preferably, please continue to refer to Fig. 2 and Fig. 3, described first step 23 belows are also provided with second step 24, and described second step 24 is connected to center section part 25, and the external diameter of described second step 24 is greater than the external diameter of described center section part 25.Described second step 24 can confinement end 10 and the link position of bar portion 20, avoids in the process of pressing, and bar portion 20 stretches in opening portion 11 completely.
Preferably, please continue to refer to Fig. 2 and Fig. 3, described center section part 25 is connected with rear portion 28 by the second depressed part 26, described center section part 25, the second depressed part 26 and rear portion 28 are followed successively by center section part 25, rear portion 28 and the second depressed part 26 according to the descending arrangement of outside dimension, preferably, described the second depressed part 26 is connected by an inclined-plane 27 with described rear portion 28.Particularly, the section forming between described the second depressed part 26 and center section part 25 and rear portion 28 is poor, can be for the auxiliary positioning of the equipment of pressing, words sentence is talked about, can be using the lower surface of the lower surface of the lower surface of first step 23, center section part 25 and rear portion 28 simultaneously as the point of application of force of the equipment of pressing, make the stressed more even of end 10 and bar portion 20, and then two assemblies are closely connected to form an entirety, can also guarantee the installation strength of two assemblies, make built-up joint of the present utility model can perfectly substitute existing integral structure simultaneously.
In sum, the built-up joint that the utility model provides, comprise the end 10 of U-shaped and the bar portion 20 of hollow, the top of described bar portion 20 is provided with notch, described notch comprises the boss part 21, the first depressed part 22 and the first step 23 that are arranged in order from top to bottom, and three arranges and is followed successively by first step 23, boss part 21 and the first depressed part 22 according to the descending order of outside dimension; The bottom of described end 10 is provided with an opening portion 11, and the external diameter of the internal diameter of described opening portion 11 and described boss part 21 matches; Described end 10 is fixedly connected with by the mode of pressing with bar portion 20.The utility model is by arranging opening portion 11 in end 10, in bar portion 20, the notch mating with opening portion 11 is set, press in process, described boss part 21 stretches in opening portion 11, until the upper surface of described first step 23 contacts with the lower surface of end 10, continue to press, make end 10 produce plastic deformation, and then the material that makes end 10 is filled in described the first depressed part 22, realize being fixedly connected with and sealing between end 10 and bar portion 20.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model model utility.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to including these changes and modification.
Claims (6)
1. a built-up joint, comprise the end of U-shaped and the bar portion of hollow, it is characterized in that, the top of described bar portion is provided with notch, described notch comprises the boss part, the first depressed part and the first step that are arranged in order from top to bottom, and three arranges and is followed successively by first step, boss part and the first depressed part according to the descending order of outside dimension; The bottom of described end is provided with an opening portion, and the internal diameter of described opening portion and the external diameter of described boss part match; Described end is fixedly connected with by the mode of pressing with bar portion.
2. built-up joint as claimed in claim 1, is characterized in that, described end adopts aluminium material to make; Described bar portion adopts carbon steel material to make.
3. built-up joint as claimed in claim 1 or 2, is characterized in that, described end adopts the mode of forging and turning to make; Described bar portion adopts the mode of forging and stamping to make.
4. built-up joint as claimed in claim 1, is characterized in that, described first step below is also provided with second step, and described second step is connected to center section part, and the external diameter of described second step is greater than the external diameter of described center section part.
5. built-up joint as claimed in claim 4, it is characterized in that, described center section part is connected with rear portion by the second depressed part, and described center section part, the second depressed part and rear portion are followed successively by center section part, rear portion and the second depressed part according to the descending arrangement of outside dimension.
6. built-up joint as claimed in claim 5, is characterized in that, described the second depressed part is connected by an inclined-plane with described rear portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420009127.5U CN203686425U (en) | 2014-01-07 | 2014-01-07 | Combination joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420009127.5U CN203686425U (en) | 2014-01-07 | 2014-01-07 | Combination joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203686425U true CN203686425U (en) | 2014-07-02 |
Family
ID=51008323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420009127.5U Expired - Lifetime CN203686425U (en) | 2014-01-07 | 2014-01-07 | Combination joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203686425U (en) |
-
2014
- 2014-01-07 CN CN201420009127.5U patent/CN203686425U/en not_active Expired - Lifetime
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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: 20140702 |
|
| CX01 | Expiry of patent term |