CN209856565U - Flange type pipe connection self-sealing joint - Google Patents
Flange type pipe connection self-sealing joint Download PDFInfo
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- CN209856565U CN209856565U CN201920360387.XU CN201920360387U CN209856565U CN 209856565 U CN209856565 U CN 209856565U CN 201920360387 U CN201920360387 U CN 201920360387U CN 209856565 U CN209856565 U CN 209856565U
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Abstract
The utility model provides a flange type pipeline connection self-sealing joint, which comprises a self-sealing joint, a flange and a positioning pin; the self-sealing joint comprises an inflation hole, an external thread, a flange thread and a joint positioning pin groove, the flange comprises the flange positioning pin groove and a fixed screw hole, an internal thread matched with the flange thread is arranged on the inner ring surface of the flange annular structure, the joint positioning pin groove and the flange positioning pin groove are semicircular grooves, the joint positioning pin groove and the flange positioning pin groove are corresponding to each other, a round hole type pin hole is formed, and a gap is formed between the external thread and the flange thread. In the technical field of fluids, the problem that the installation and maintenance operation of the self-sealing joint are troublesome and the workload is large exists, the flange and the self-sealing joint are designed in a split mode and then assembled into an integrated mode, the installation mode is improved, the installation is convenient, and the material and labor cost are saved.
Description
Technical Field
The utility model relates to the technical field of fluid, especially, relate to a flange formula pipe connection self-sealing joint.
Background
Self-sealing joints are a very versatile fitting used in the gas and fluid fields. We generally use clips to hold the outer hexagonal edge up and down as shown in the following figures, but this is cumbersome to install and remove. The connector needs to be located outside the panel for connecting operation, and if the connector is installed and maintained and replaced under the condition that the panel is installed, all parts and panels on the panel need to be removed for operation, so that the operation is very troublesome and the workload is very large. Especially, the installation and maintenance of the SF6 recovery equipment and the user operation disk end are greatly convenient.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems of troublesome installation and maintenance operation and large workload of the self-sealing joint in the prior art, the utility model provides a flange type pipeline connection self-sealing joint, which comprises a self-sealing joint, a flange and a positioning pin; the self-sealing joint comprises an inflation hole, an external thread, a flange thread and a joint positioning pin groove, the flange comprises the flange positioning pin groove and a fixed screw hole, an internal thread matched with the flange thread is arranged on the inner ring surface of the flange annular structure, the joint positioning pin groove and the flange positioning pin groove are semicircular grooves, the joint positioning pin groove and the flange positioning pin groove are corresponding to each other, a round hole type pin hole is formed, and a gap is formed between the external thread and the flange thread.
Preferably, the flange thread comprises an external thread surface and a smooth surface, the width of the external thread surface is equal to the thickness of the flange, and the height of the smooth surface is equal to that of the external thread surface.
Through adopting above-mentioned technical scheme, the internal thread on external screw thread face and the flange is connected, and the width of external screw thread is the same with the thickness of flange, and the smooth surface equals with the height of external screw thread face, can play spacing effect for threaded connection.
Preferably, the external thread is provided with two sections which are respectively positioned at two ends of the flange connecting thread, the diameter of one section of the external thread connected with the air charging hole is the same as that of the flange connecting thread, and the diameter of the external thread at the other end opposite to the external thread is smaller than the inner diameter of the flange.
Through adopting above-mentioned technical scheme, external screw thread divide into the part of two kinds of different diameters, can satisfy the demand of aerifing the not unidimensional interface of end and inlet end, and the diameter of one section external screw thread relative with aerifing the hole is less than the internal diameter of flange, can make things convenient for the installation of locating pin, makes the locating pin can have sufficient space to install.
Preferably, the fixing screw holes on the flange are uniformly distributed on the periphery of the flange, the number of the fixing screw holes is even, and internal threads are arranged on the inner walls of the fixing screw holes.
Through adopting above-mentioned technical scheme, fixed screw evenly distributed on the flange just sets up even number, can form an even atress after the installation for flange mounting is more firm, and the internal thread that is equipped with on the pore wall can cooperate fixing bolt to use, can effectively reduce the not hard up that produces after the flange is fixed.
Preferably, pin holes formed in the joint positioning pins and the flange positioning pins are perpendicular to two side faces of the flange, and two pin holes are symmetrical to each other.
Through adopting above-mentioned technical scheme, the pinhole that connects locating pin groove and flange locating pin groove to constitute is convenient for the installation of locating pin, and the pinhole symmetry of constituteing simultaneously, and two locating pins are installed simultaneously and can be reduced the locating pin and to proclaiming oneself the bad influence that connects the production skew, also can make simultaneously proclaiming oneself and connect inseparabler between joint and the flange.
Preferably, the positioning pin is a taper pin, and the length of the pin hole is 80% -85% of the taper pin.
By adopting the technical scheme, the flange and the self-sealing joint can be connected more tightly by using the taper pin, the looseness is not easy to generate, the length of the positioning pin is slightly greater than that of the pin controller, the large end of the positioning pin can be exposed out of the surface of the pin after the positioning pin is installed, and the subsequent adjustment is facilitated.
Preferably, the inner diameters of the semicircular grooves of the joint positioning pin groove and the flange positioning pin groove are gradually reduced from one end to the other section, and the end with the small inner diameter is the end with the external thread and provided with the inflation hole.
Through adopting above-mentioned technical scheme, by the internal diameter of connecting locating pin groove and flange locating pin groove by one end to other one end dwindle, and the one end that has the gas charging hole is the one end that the internal diameter is little, can make things convenient for the taper pin to fix, forms comparatively inseparable connection, makes fixed effect better.
Preferably, the self-sealing joint is formed by copper pressing, and the flange is formed by steel pressing.
Through adopting above-mentioned technical scheme, the main functional subassembly of this mechanism is for proclaiming oneself the joint, and is higher to the material requirement, and the flange only adopts the steel for fixed subassembly, has practiced thrift the cost.
In conclusion, a gap is formed between the external thread and the flange connecting thread, so that an expansion space can be reserved after the device is heated, the damage to parts is reduced, and the service life is prolonged. Through the hexagonal structure of cancelling original self sealing joint, change flange structure into and fix, the demand volume to the material is great originally with flange and the structure of making an organic whole from sealing joint, and the cost-push is a lot, and most has been cut, has caused the waste. Therefore, the flange and the self-sealing joint are designed in a split mode and then assembled into a whole, the installation mode is improved, the installation is convenient, and the material and labor cost are saved. The mounting and dismounting are convenient, and only the screws for fixing the flange need to be screwed and loosened in the mounting and dismounting processes; the self-sealing joint fixed on the flange cannot be loosened when the pipeline is connected; the cost is saved, the installation is quick, the subsequent inspection work is reduced, and meanwhile, the material is greatly reduced due to the independent combination of the flange and the self-sealing joint.
Drawings
FIG. 1 is a cross-sectional view of a flange-type pipe connection self-sealing joint structure;
FIG. 2 is a schematic view of a flange configuration;
reference numerals: 1. a self-sealing joint; 11. an inflation hole; 12. externally connecting a thread; 13. connecting flange threads; 131. an external thread surface; 132. a smooth surface; 14. a joint locating pin slot; 2. a flange; 21. a flange locating pin slot; 22. and fixing the screw hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
As shown in fig. 1 and 2: a flange type pipeline connection self-sealing joint comprises a self-sealing joint 1, a flange 2 and a positioning pin; the self-sealing joint 1 comprises an inflation hole 11, an external thread 12, a flange connecting thread 13 and a joint positioning pin groove, the flange 2 comprises a flange positioning pin groove 21 and a fixing screw hole 22, an internal thread matched with the flange connecting thread 13 is arranged on the inner ring surface of the ring structure of the flange 2, the joint positioning pin groove 14 and the flange positioning pin 21 are both semicircular grooves, the joint positioning pin groove 14 corresponds to the flange positioning pin groove 21 to form a pin hole with a circular hole shape, and a gap is formed between the external thread 12 and the flange connecting thread 13.
As shown in fig. 1 and 2: the flange thread 13 comprises an external thread surface 131 and a smooth surface 132, the width of the external thread surface 131 is equal to the thickness of the flange 2, and the surface height of the smooth surface 132 is equal to that of the external thread surface 131. The external thread surface 131 is connected with the internal thread on the flange 2, the width of the external thread is the same as the thickness of the flange 2, and the smooth surface 132 is equal to the external thread surface 131 in height, so that the limiting effect can be achieved for threaded connection.
As shown in fig. 1 and 2: the external thread 12 is provided with two sections which are respectively positioned at two ends of the flange connecting thread 13, the diameter of one section of the external thread 12 connected with the inflating hole 11 is the same as that of the flange connecting thread 13, and the diameter of the external thread 12 at the other end opposite to the external thread is smaller than the inner diameter of the flange 2. External thread 12 divide into the part of two kinds of different diameters, can satisfy the demand of aerifing the end and the not unidimensional interface of inlet end, and the diameter of one section external screw thread relative with aerifing hole 11 is less than the internal diameter of flange 2, can make things convenient for the installation of locating pin, makes the locating pin can have sufficient space to install.
As shown in fig. 1 and 2: the fixing screw holes 22 on the flange 2 are uniformly distributed on the periphery of the flange 2, and the fixing screws are as shown in fig. 1 and fig. 2: the number of the holes is even, and the inner wall of the fixed screw hole 22 is provided with internal threads. The even number just sets up to fixed screw 22 evenly distributed on the flange 2, can form an even atress after the installation for flange 2 installs more firmly, and the internal thread that is equipped with on the pore wall can cooperate fixing bolt to use, can effectively reduce the not hard up that produces after flange 2 is fixed.
Example 2
As shown in fig. 1 and 2: a flange type pipeline connection self-sealing joint comprises a self-sealing joint 1, a flange 2 and a positioning pin; the self-sealing joint 1 comprises an inflation hole 11, an external thread 12, a flange connecting thread 13 and a joint positioning pin groove 14, the flange 2 comprises a flange positioning pin groove 21 and a fixing screw hole 22, an internal thread matched with the flange connecting thread 13 is arranged on the inner ring surface of the ring-shaped structure of the flange 2, the joint positioning pin groove 14 and the flange positioning pin 21 are both semicircular grooves, the joint positioning pin groove 14 corresponds to the flange positioning pin groove 21 to form a pin hole of a circular hole type, and a gap is formed between the external thread 12 and the flange connecting thread 13.
As shown in fig. 1 and 2: pin holes formed in the joint positioning pin grooves 14 and the flange positioning pins 21 are perpendicular to two side faces of the flange 2, and two pin holes are symmetrical to each other. The pin holes formed by the joint positioning pin grooves 14 and the flange positioning pin grooves 21 are convenient for installation of positioning pins, the pin holes formed simultaneously are symmetrical, the adverse effect of the deviation of the positioning pins on the self-sealing joint 1 can be reduced due to the simultaneous installation of the two positioning pins, and meanwhile, the self-sealing joint 1 and the flange 2 can be connected more closely.
As shown in fig. 1 and 2: the positioning pin is a taper pin, and the length of the pin hole is 80-85% of that of the taper pin. The flange 2 that the use of taper pin can make is connected with self sealing joint 1 more inseparabler, is difficult for producing not hard up, and the length of locating pin slightly is greater than the length of round pin accuse, can make the major part of locating pin can expose the pin surface after the installation, the subsequent adjustment of being convenient for.
As shown in fig. 1 and 2: the inner diameters of the semicircular grooves of the joint positioning pin groove 14 and the flange positioning pin groove 21 are gradually reduced from one end to the other section, and the end with the small inner diameter is the end with the external thread 12 and provided with the inflation hole 11. The inner diameters of the joint positioning pin groove 14 and the flange positioning pin groove 21 are reduced from one end to the other end, and the end with the inflation hole 11 is the end with the small inner diameter, so that the conical pin can be conveniently fixed, a tight connection is formed, and the fixing effect is better.
As shown in fig. 1 and 2: the self-sealing joint 1 is made of copper and the flange 2 is made of steel. The main functional assembly of this mechanism is from sealing joint 1, and is higher to the material requirement, and flange 2 only is fixed subassembly, adopts the steel, has practiced thrift the cost.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (8)
1. The utility model provides a flange formula pipe connection self-sealing joint which characterized in that: comprises a self-sealing joint (1), a flange (2) and a positioning pin; the self-sealing joint (1) comprises an inflation hole (11), an external thread (12), a flange connecting thread (13) and a joint positioning pin groove (14), the flange (2) comprises a flange positioning pin groove (21) and a fixed screw hole (22), an internal thread matched with the flange connecting thread (13) is arranged on the inner ring surface of the annular structure of the flange (2), the joint positioning pin groove (14) and the flange positioning pin groove (21) are both semicircular grooves, the joint positioning pin groove (14) corresponds to the flange positioning pin groove (21), a pin hole of a circular hole type is formed, and a gap is formed between the external thread (12) and the flange connecting thread (13).
2. The flange-type pipe connection self-sealing joint according to claim 1, wherein: the flange connecting thread (13) comprises an external thread surface (131) and a smooth surface (132), the width of the external thread surface (131) is equal to the thickness of the flange (2), and the surface height of the smooth surface (132) is equal to that of the external thread surface (131).
3. The flange-type pipe connection self-sealing joint according to claim 1, wherein: the external thread (12) is provided with two sections which are respectively positioned at two ends of the flange connecting thread (13), the diameter of one section of the external thread (12) connected with the inflation hole (11) is the same as that of the flange connecting thread (13), and the diameter of the other end of the external thread (12) opposite to the external thread is smaller than the inner diameter of the flange (2).
4. The flange-type pipe connection self-sealing joint according to claim 1, wherein: the fixing screw holes (22) in the flange (2) are uniformly distributed on the periphery of the flange (2), the number of the fixing screw holes (22) is even, and internal threads are arranged on the inner wall of each fixing screw hole (22).
5. The flange-type pipe connection self-sealing joint according to claim 1, wherein: the pin holes formed in the joint positioning pins and the flange (2) positioning pins are perpendicular to two side faces of the flange (2), and the two pin holes are symmetrical to each other.
6. The flange-type pipe connection self-sealing joint according to claim 5, wherein: the positioning pin is a taper pin, and the length of the pin hole is 80% -85% of the length of the taper pin.
7. The flange-type pipe connection self-sealing joint according to claim 1, wherein: the inner diameter of the semicircular groove of the joint positioning pin and the flange (2) positioning pin is gradually reduced from one end to the other section, and the end with the small inner diameter is the end with the external thread (12) and provided with the inflation hole (11).
8. The flange-type pipe connection self-sealing joint according to claim 1, wherein: the self-sealing joint (1) is formed by copper pressing, and the flange (2) is formed by steel pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920360387.XU CN209856565U (en) | 2019-03-21 | 2019-03-21 | Flange type pipe connection self-sealing joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920360387.XU CN209856565U (en) | 2019-03-21 | 2019-03-21 | Flange type pipe connection self-sealing joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209856565U true CN209856565U (en) | 2019-12-27 |
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ID=68934311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920360387.XU Active CN209856565U (en) | 2019-03-21 | 2019-03-21 | Flange type pipe connection self-sealing joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209856565U (en) |
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2019
- 2019-03-21 CN CN201920360387.XU patent/CN209856565U/en active Active
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