CN220204954U - Threaded clamping and pressing pipe fitting - Google Patents
Threaded clamping and pressing pipe fitting Download PDFInfo
- Publication number
- CN220204954U CN220204954U CN202321938990.4U CN202321938990U CN220204954U CN 220204954 U CN220204954 U CN 220204954U CN 202321938990 U CN202321938990 U CN 202321938990U CN 220204954 U CN220204954 U CN 220204954U
- Authority
- CN
- China
- Prior art keywords
- pipe
- clamping
- convex ring
- pressing
- pipe expanding
- 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.)
- Active
Links
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 33
- 239000010935 stainless steel Substances 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000007373 indentation Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to a clamping and pressing pipe fitting with threads, which comprises a straight pipe part; the pipe expanding part is arranged in a horn shape, and the inner wall of the pipe expanding part is provided with internal threads; the clamping and pressing part is provided with a first convex ring and a second convex ring, the inner walls of the first convex ring and the second convex ring are provided with grooves for installing the sealing rings, a space is arranged between the first convex ring and the second convex ring, and the inner diameter of the clamping and pressing part before being compressed corresponds to the outer diameter of the stainless steel pipe; the pipe expanding part and the clamping part are respectively provided with two ends and are respectively arranged at two ends of the straight pipe part, and the internal thread is in threaded connection with the external thread on the outer wall of the stainless steel pipe port. The beneficial effects of the utility model are as follows: the tightness and the pulling resistance of the joint are improved, meanwhile, the pulling resistance of the stainless steel pipe and the pipe expanding part in threaded connection is further improved, the stainless steel pipe is not easy to separate, and the connection is more convenient and stable.
Description
Technical Field
The utility model relates to the technical field of stainless steel pipes, in particular to a clamping and pressing pipe fitting with threads.
Background
The clamping and pressing pipe fitting is a connecting piece which is formed by connecting a bell pipe fitting with a special sealing ring with a pipeline, pressing the pipe orifice by a special tool and has sealing and fixing functions, and is divided into a D type connecting piece and an S type connecting piece according to the end clamping and pressing connecting mode. The anti-drawing anti-rotation device has the characteristics of drawing resistance, rotation resistance, simplicity and convenience in installation, small required operation space, earthquake resistance, no maintenance after installation and the like.
Chinese patent document 2017219136784 discloses a clamping pipe fitting, including the connecting pipe, one side intercommunication of connecting pipe has first grafting pipe, one side intercommunication that first grafting pipe kept away from the connecting pipe has first sealing tube, one side that first grafting pipe was kept away from to first sealing tube is connected with first pressure pipe, one side intercommunication that first grafting pipe was kept away from to the connecting pipe has second grafting pipe, one side intercommunication that second grafting pipe kept away from the connecting pipe has second sealing tube, one side that second grafting pipe was kept away from to the second sealing tube is connected with the second and presses the pipe, the inner wall fixedly connected with first sealing washer of first sealing tube, the inner wall fixedly connected with second sealing washer of second sealing tube.
According to the patent, the thin-wall stainless steel pipe is inserted into the insertion pipe, the insertion pipe and the stainless steel pipe are pressed into a hexagon by using the special clamping tool, and the insertion pipe and the stainless steel pipe are clamped in the pipe, so that the O-shaped sealing ring radially contracts and is tightly held, and rotation water leakage in use is prevented, but the axial tensile pulling force between the insertion pipe and the stainless steel pipe is realized only through one indentation, and when the sudden pressure in the pipeline is overlarge, the situation of leakage or even separation easily occurs.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide a threaded clamping and pressing type pipe fitting so as to solve the problems.
The technical scheme of the utility model is realized as follows: a clamping and pressing pipe fitting with threads comprises,
a straight pipe section;
the pipe expanding part is arranged in a horn shape, and an inner thread is arranged on the inner wall of the pipe expanding part;
the clamping and pressing part is provided with a first convex ring and a second convex ring, the inner walls of the first convex ring and the second convex ring are provided with grooves for installing sealing rings, a space is arranged between the first convex ring and the second convex ring, and the inner diameter of the clamping and pressing part before being pressed corresponds to the outer diameter of the stainless steel pipe;
the pipe expanding and clamping and pressing parts are respectively provided with two ends and are respectively arranged at two ends of the straight pipe part, one smaller end of the opening of the pipe expanding part is connected with one end of the straight pipe part, one larger end of the opening of the pipe expanding part is connected with one end of the clamping and pressing part, the internal threads are in threaded connection with the external threads on the outer wall of the port of the stainless steel pipe, and the first convex ring is arranged close to the pipe expanding part.
Through adopting above-mentioned technical scheme, when the installation, stainless steel pipe inserts in the card pressure portion, rotatory stainless steel pipe or take screw thread card pressure pipe fitting again for the external screw thread on the stainless steel pipe port carries out threaded connection with the internal screw thread on the expanded pipe portion inner wall, after rotatory in place, again presses the both sides of first bulge loop and second bulge loop and first bulge loop and second bulge loop on the card pressure portion with card pressure instrument to extrude between, thereby produce three indentation, the effectual two sealing washer of compressing tightly on the outer wall of stainless steel pipe, thereby improve the leakproofness and the tensile pulling force of junction, the tensile pulling force when threaded connection's stainless steel pipe and expanded pipe portion have further improved simultaneously, make it be difficult for breaking away from, it is more convenient, stable to connect.
The utility model is further provided with: the internal thread on the pipe expanding part is arranged on the inner wall of one end with a larger opening, and the internal thread extends from one end with a larger opening to one end with a smaller opening of the pipe expanding part so that the thread depth is gradually increased.
Through adopting above-mentioned technical scheme, the internal thread accessible tapping on the expanded pipe portion sets up for carry out threaded connection with the internal thread when the port of stainless steel tubular product reaches the expanded pipe portion, make its connection more convenient, stable.
The utility model is further provided with: the maximum thread depth of the internal thread is not more than one half of the expanded pipe section thickness.
Through adopting above-mentioned technical scheme, can guarantee the intensity of expanding pipe portion and can also guarantee threaded connection's stability.
The utility model is further provided with: the inner diameter of the end of the pipe expanding part with the smaller opening is the same as that of the straight pipe part, and the inner diameter of the end of the pipe expanding part with the larger opening is the same as that of the clamping and pressing part.
By adopting the technical scheme, the medium flows more smoothly in the threaded clamping and pressing pipe fitting, and the obstruction is reduced.
The utility model is further provided with: the groove depth of the groove is larger than the section diameter of the sealing ring.
Through adopting above-mentioned technical scheme, can make stainless steel pipe insert in the card pressure portion, the sealing washer can laminate on the outer wall of stainless steel pipe, simultaneously when card pressure portion and stainless steel pipe are being pressed by card pressure instrument, effectual compress tightly the laminating with the sealing washer on the outer wall of stainless steel pipe, make its leakproofness better.
The utility model is further provided with: the distance between the first convex ring and the second convex ring is set to be 0.6cm-1.5cm.
Through adopting above-mentioned technical scheme, can leave sufficient interval and make the card press tool extrude, avoid the too big length overlength that leads to the connection of interval simultaneously for the tubular product is extravagant.
The utility model is further provided with: the spacing between the end, connected with the pipe expanding part, of the clamping and pressing part and the first convex ring is larger than 1.5cm.
Through adopting above-mentioned technical scheme, can avoid card pressure portion when being extruded, deformation influences the external screw thread on expanding pipe portion and the stainless steel tubular product, avoid threaded connection to take place not hard up.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of a structure before clamping in accordance with an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a structure after clamping according to an embodiment of the present utility model;
FIG. 3 is a schematic structural diagram of A in an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of B in an embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-4, the present utility model discloses a threaded snap-in fitting comprising,
a straight pipe section 1;
the pipe expanding part 2 is arranged in a horn shape, and an inner thread 20 is arranged on the inner wall of the pipe expanding part 2;
the clamping and pressing part 3 is provided with a first convex ring 30 and a second convex ring 31, the inner walls of the first convex ring 30 and the second convex ring 31 are provided with grooves 33 for installing sealing rings 32, a space is arranged between the first convex ring 30 and the second convex ring 31, and the inner diameter of the clamping and pressing part 3 before being compressed corresponds to the outer diameter of the stainless steel pipe 4;
the two pipe expanding portions 2 and the clamping and pressing portions 3 are respectively arranged at two ends of the straight pipe portion 1, one end of the pipe expanding portion 2 with a smaller opening is connected with one end of the straight pipe portion 1, one end of the pipe expanding portion 2 with a larger opening is connected with one end of the clamping and pressing portion 3, the internal threads 20 are in threaded connection with external threads on the outer wall of the port of the stainless steel pipe 4, and the first convex ring 30 is arranged close to the pipe expanding portion 2.
Through adopting above-mentioned technical scheme, when the installation, stainless steel pipe 4 inserts card pressure portion 3 in, rotatory stainless steel pipe 4 or take screw thread card pressure pipe fitting again for the external screw thread on stainless steel pipe 4 port carries out threaded connection with the internal screw thread 20 on the expanded pipe portion 2 inner wall, after rotatory in place, extrudees the both sides of first bulge loop 30 and second bulge loop 31 and between first bulge loop 30 and the second bulge loop 31 on card pressure portion 3 with card pressure tool again, thereby produces three indentation, the effectual two sealing washer 32 of compressing tightly on the outer wall of stainless steel pipe 4, thereby improve the leakproofness and the tensile pulling force of junction, the stainless steel pipe 4 of threaded connection has still further improved the tensile pulling force when being connected with expanded pipe portion 2 simultaneously, make it be difficult for breaking away from, the connection is more convenient, stable.
In the embodiment of the present utility model, the internal thread 20 on the pipe expanding portion 2 is formed on the inner wall of the end with a larger opening, and the internal thread 20 extends from the end with a larger opening to the end with a smaller opening of the pipe expanding portion 2 so that the thread depth gradually increases.
Through adopting above-mentioned technical scheme, the internal thread 20 accessible tapping setting on the expanded pipe portion 2 for carry out threaded connection with the internal thread 20 when the port of stainless steel tubular product 4 reached the expanded pipe portion 2, make its connection more convenient, stable.
In the embodiment of the present utility model, the maximum thread depth of the internal thread 20 is not more than one half of the thickness of the expanded pipe portion 2.
By adopting the technical scheme, the strength of the pipe expanding part 2 can be ensured, and the stability of threaded connection can be ensured.
In the embodiment of the utility model, the inner diameter of the end of the expanded pipe part 2 with smaller opening is the same as the inner diameter of the straight pipe part 1, and the inner diameter of the end of the expanded pipe part 2 with larger opening is the same as the inner diameter of the clamping and pressing part 3.
By adopting the technical scheme, the medium flows more smoothly in the threaded clamping and pressing pipe fitting, and the obstruction is reduced.
In the embodiment of the present utility model, the groove depth h of the groove 33 is not greater than the cross-sectional diameter d of the seal ring 32.
Through adopting above-mentioned technical scheme, when enabling nonrust steel pipe 4 to insert in the card pressure portion 3, sealing washer 32 can laminate on nonrust steel pipe 4's outer wall, simultaneously when card pressure portion 3 and nonrust steel pipe 4 when being pressed by the card pressure instrument, effectually compress tightly the laminating with sealing washer 32 on nonrust steel pipe 4's outer wall, make its leakproofness better.
In the embodiment of the present utility model, the distance between the first convex ring 30 and the second convex ring 31 is set to be 0.6cm-1.5cm.
Through adopting above-mentioned technical scheme, can leave sufficient interval and make the card press tool extrude, avoid the too big length overlength that leads to the connection of interval simultaneously for the tubular product is extravagant.
In the embodiment of the present utility model, the distance between the end of the clamping and pressing part 3 connected with the pipe expanding part 2 and the first convex ring 30 is greater than 1.5cm.
Through adopting above-mentioned technical scheme, can avoid card pressure portion 3 when being extruded, deformation influences the external screw thread on expanding pipe portion 2 and the stainless steel tubular product 4, avoid threaded connection to take place not hard up.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (7)
1. A threaded clamping and pressing pipe fitting is characterized by comprising,
a straight pipe section (1);
the pipe expanding part (2), wherein the pipe expanding part (2) is arranged in a horn shape, and an inner thread (20) is arranged on the inner wall of the pipe expanding part (2);
the clamping and pressing part (3), a first convex ring (30) and a second convex ring (31) are arranged on the clamping and pressing part (3), grooves (33) for installing sealing rings (32) are formed in the inner walls of the first convex ring (30) and the second convex ring (31), a space is formed between the first convex ring (30) and the second convex ring (31), and the inner diameter of the clamping and pressing part (3) before being compressed corresponds to the outer diameter of a stainless steel pipe (4);
the pipe expanding device comprises a pipe expanding part (2) and a clamping part (3), wherein the pipe expanding part (2) and the clamping part (3) are respectively provided with two ends which are respectively arranged on the two ends of the straight pipe part (1), one smaller end of the opening of the pipe expanding part (2) is connected with one end of the straight pipe part (1), one larger end of the opening of the pipe expanding part (2) is connected with one end of the clamping part (3), the internal threads (20) are in threaded connection with external threads on the outer wall of a port of a stainless steel pipe (4), and the first convex ring (30) is arranged close to the pipe expanding part (2).
2. A threaded press-fit pipe fitting according to claim 1, characterized in that the internal thread (20) of the pipe expanding portion (2) is provided on the inner wall of the end with the larger opening, and the internal thread (20) extends from the end with the larger opening to the end with the smaller opening of the pipe expanding portion (2) so that the thread depth is gradually increased.
3. A threaded bayonet fitting according to claim 2, characterized in that the maximum thread depth of the internal thread (20) is not more than half the thickness of the expanded pipe section (2).
4. The threaded clamping and pressing pipe fitting according to claim 1, wherein the inner diameter of the smaller end of the pipe expanding portion (2) is the same as the inner diameter of the straight pipe portion (1), and the inner diameter of the larger end of the pipe expanding portion (2) is the same as the inner diameter of the clamping and pressing portion (3).
5. A threaded snap-in fitting according to claim 1, characterized in that the groove depth (h) of the groove (33) is not greater than the cross-sectional diameter (d) of the sealing ring (32).
6. A threaded snap-in fitting according to claim 1, characterized in that the distance between the first collar (30) and the second collar (31) is set to 0.6cm-1.5cm.
7. A threaded crimp-type pipe fitting according to claim 1, characterized in that the spacing between the end of the crimp portion (3) connected to the expanded pipe portion (2) and the first collar (30) is greater than 1.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321938990.4U CN220204954U (en) | 2023-07-22 | 2023-07-22 | Threaded clamping and pressing pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321938990.4U CN220204954U (en) | 2023-07-22 | 2023-07-22 | Threaded clamping and pressing pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220204954U true CN220204954U (en) | 2023-12-19 |
Family
ID=89142064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321938990.4U Active CN220204954U (en) | 2023-07-22 | 2023-07-22 | Threaded clamping and pressing pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220204954U (en) |
-
2023
- 2023-07-22 CN CN202321938990.4U patent/CN220204954U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201057330Y (en) | Integral fast pipe interface, joint and blanking adapter | |
| ES2167915T3 (en) | TIGHTENING ADAPTER ACCESSORY FOR OBTAINING AN INDISOLUBLE TUBE UNION. | |
| CN220204954U (en) | Threaded clamping and pressing pipe fitting | |
| CN211715972U (en) | Sealed pipe joint | |
| CN209839405U (en) | Convenient connection structure of water heating pipe | |
| CN216201328U (en) | Leak-proof cutting sleeve type copper pipe joint | |
| CN201180875Y (en) | Detachable connecting pipe fitting | |
| CN217773401U (en) | Oil tank filter core structure | |
| CN214741642U (en) | Reverse integrated adapter connector for engine oil cooler | |
| CN206468939U (en) | The Hermetical connecting structure of thin walled hard metal circular tube | |
| CN220037434U (en) | Sealing ring | |
| CN203336110U (en) | Directly-inserting type quickly-connected pipe fitting | |
| CN204141100U (en) | A kind of pipe joint, tube joint assembly and pipe connecting structure | |
| CN2450492Y (en) | Internal thread locking connector | |
| CN201561227U (en) | Plastic pipe fitting for mechanical connection | |
| KR20070079965A (en) | Insertting type double contacting joint | |
| CN105156447A (en) | Rivet nut, method for processing waterproof joint on processed lamp shell and pressing block used in method | |
| CN205315913U (en) | From removable super high pressure hose joint that unloads of locking -type | |
| CN2503294Y (en) | Extrusion pipe joint apparatus | |
| CN220688340U (en) | Rubber tube joint structure | |
| CN217153419U (en) | Hose seal installation structure | |
| CN216430745U (en) | Drain pipe structure with internal spiral structure | |
| CN220980635U (en) | Corrugated pipe joint for gas conveying connection | |
| RU205462U1 (en) | ADAPTER FITTING | |
| CN214008447U (en) | Position-adjustable three-way joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |