CN220623059U - Clamping and pressing type pipe fitting - Google Patents
Clamping and pressing type pipe fitting Download PDFInfo
- Publication number
- CN220623059U CN220623059U CN202322341613.9U CN202322341613U CN220623059U CN 220623059 U CN220623059 U CN 220623059U CN 202322341613 U CN202322341613 U CN 202322341613U CN 220623059 U CN220623059 U CN 220623059U
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- Prior art keywords
- clamping
- pipe fitting
- matched
- clamping connector
- guide
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- 238000003825 pressing Methods 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 238000003780 insertion Methods 0.000 claims abstract description 12
- 230000037431 insertion Effects 0.000 claims abstract description 12
- 238000012856 packing Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 description 8
- 229910001220 stainless steel Inorganic materials 0.000 description 8
- 239000010935 stainless steel Substances 0.000 description 8
- 239000003292 glue Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a clamping and pressing pipe fitting, which structurally comprises a straight pipe body, wherein clamping connectors for inserting matched pipe fittings are extended at two ends of the straight pipe body, an annular groove is concavely formed in the inner peripheral surface of the clamping connector, a sealing ring is accommodated in the annular groove, a containing groove is concavely formed in the inner peripheral surface of the clamping connector and positioned outside the annular groove, a guide lantern ring is accommodated in the containing groove, and the guide lantern ring guides the insertion path of the matched pipe fitting when the matched pipe fitting is inserted into the clamping connector.
Description
Technical Field
The utility model relates to the technical field of pipe fittings, in particular to a clamping and pressing type pipe fitting.
Background
In engineering application, when two or more sections of circular pipes are connected in succession to form a transmission pipeline, the adjacent circular pipes are required to be connected in a sealing way, and the existing connection modes comprise clamping type, clamping convex type, compression type, rolling tooth type, welding type and pipe tooth type; the working principle of the clamping and pressing pipe fitting is that a hard pipe is inserted into a socket of the clamping and pressing pipe fitting, and the hard pipe is clamped in the pipe fitting by using a special clamping and pressing tool.
At present, chinese patent publication (bulletin) No. CN213929766U discloses a clamping and pressing type direct connection, which comprises a straight pipe made of metal materials, wherein clamping heads are arranged at two ends of the straight pipe, each clamping head comprises a clamping connection pipe integrally connected with one end of the straight pipe, an annular groove is recessed on the inner circumferential surface of the clamping connection pipe, a sealing ring is inserted and matched in the annular groove, and a sealing ring part protrudes out of the inner circumferential surface of the clamping connection pipe; carburized layers are arranged on the inner peripheral surfaces and the outer peripheral surfaces of the straight pipe and the clamping pipe, impermeable layers are arranged on the inner peripheral surfaces of the straight pipe and the clamping pipe, and fireproof layers are arranged on the outer peripheral surfaces of the straight pipe and the clamping pipe; when the clamping and pressing type direct connection is used, the stainless steel pipe is inserted into the opening of the clamping connection pipe, after the stainless steel pipe is inserted to a certain depth and is abutted against the sealing ring arranged on the inner wall of the clamping connection pipe, the outer side wall where the clamping and pressing tool is used for clamping and pressing the sealing ring is used for locking the stainless steel pipe in the clamping connection pipe, but the axis of the stainless steel pipe is easily deviated due to errors of manual operation in the inserting process, the inserting end of the stainless steel pipe is further contacted with the inner ring of the sealing ring, and the end face is sharp due to the fact that the inserting end of the stainless steel pipe is formed by cutting, burrs are generated during cutting, the sealing ring is extremely easy to scratch when the inserting end of the stainless steel pipe is contacted with the sealing ring, the sealing performance of the sealing ring is affected, and the sealing effect between the clamping and pressing type pipe fitting and the stainless steel pipe is affected.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide a clamping and pressing type pipe fitting so as to solve the technical problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a clamping and pressing formula pipe fitting, including the straight tube body, the both ends of straight tube body extend have the joint that is used for pegging graft supporting pipe fitting, its characterized in that: the inner peripheral surface of the clamping connector is concavely provided with an annular groove, a sealing ring is accommodated in the annular groove, the inner peripheral surface of the clamping connector is concavely provided with a containing groove outside the annular groove, a guide lantern ring is accommodated in the containing groove, and the guide lantern ring guides the insertion path of the matched pipe fitting when the matched pipe fitting is inserted into the clamping connector.
The utility model is further provided with: the guide lantern ring comprises an annular main body, a closing part extends from the right side of the annular main body, a guide through hole is formed in the center of the closing part, and a guide inclined plane is formed between the guide through hole and the inner wall of the annular main body.
The utility model is further provided with: the inner diameter of the clamping connector is larger than that of the straight pipe body to form an arc-shaped propping step, and a propping lantern ring is arranged in the arc-shaped propping step.
The utility model is further provided with: the propping lantern ring is provided with an outer cambered surface matched with the cambered propping step, a through hole is formed in the inner ring of the propping lantern ring, an outer inclined waist is arranged at a port of one side of the through hole, which is close to the clamping connector, and an inner inclined waist is arranged at a port of the other side of the through hole, and the inner diameter of the outer inclined waist gradually contracts from outside to inside.
The utility model is further provided with: the outer ring of the insertion end of the matched pipe fitting is provided with a tight-supporting inclined waist, and the inclination of the tight-supporting inclined waist is matched with the inner diameter of the outer inclined waist.
The utility model is further provided with: the inner peripheral surface of the clamping joint is positioned between the annular groove and the arc-shaped butt and is provided with a packing groove in a surrounding mode, and the outer wall of the clamping joint is provided with a plurality of filling holes communicated with the packing groove.
The utility model is further provided with: the outer opening end of the clamping connector is provided with a flaring.
In summary, the utility model has the following beneficial effects: the matched pipe fitting is inserted in-process guide lantern ring to guide its route of inserting to make its in-process of inserting remain coaxial with the joint all the time, and then avoid the matched pipe fitting to insert the condition of the scratch sealing washer of in-process because the axle center takes place the skew, inwards extrude the joint with the clamp by the clamp pressure instrument, make to form tight fit between matched pipe fitting and the joint, guarantee the sealed effect between matched pipe fitting and the joint through the sealing washer.
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 overall cross-sectional view of the present utility model;
FIG. 2 is an enlarged schematic view of a partial structure at A in FIG. 1;
fig. 3 is an enlarged schematic view of a partial structure at B in fig. 1.
Reference numerals: 1. a straight pipe body; 2. a mating pipe fitting; 20. tightly supporting the inclined waist; 3. a clamping joint; 30. an annular groove; 31. a seal ring; 4. a containing groove is arranged; 40. a guide collar; 41. an annular body; 42. a receiving portion; 43. a pilot port; 44. a guide slope; 5. arc-shaped step-resisting; 50. abutting the lantern ring; 51. a via hole; 52. an outer oblique waist; 53. an inner oblique waist; 6. a filler tank; 60. filling the hole.
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.
Referring to fig. 1-3, a clamping and pressing pipe fitting according to an embodiment of the present utility model includes a straight pipe body 1, two ends of the straight pipe body 1 extend with clamping connectors 3 for plugging with a mating pipe fitting 2, and is characterized in that: the inner peripheral surface of the clamping connector 3 is concavely provided with an annular groove 30, a sealing ring 31 is accommodated in the annular groove 30, the inner peripheral surface of the clamping connector 3 is concavely provided with a containing groove 4 positioned outside the annular groove 30, a guide lantern ring 40 is accommodated in the containing groove 4, and the guide lantern ring 40 guides the insertion path of the matched pipe fitting 2 when the matched pipe fitting 2 is inserted into the clamping connector 3.
When the sealing device is used, one end of the matched pipe fitting 2 is inserted into the clamping connector 3, the insertion path of the matched pipe fitting 2 is guided by the guide lantern ring 40 in the insertion process of the matched pipe fitting 2, so that the matched pipe fitting is always coaxial with the clamping connector 3 in the insertion process, the situation that the sealing ring 31 is scratched due to the fact that the axis is deviated in the insertion process of the matched pipe fitting 2 is avoided, the clamping connector 3 is finally extruded inwards by using a clamping tool, tight fit is formed between the matched pipe fitting 2 and the clamping connector 3, and the sealing effect between the matched pipe fitting 2 and the clamping connector 3 is guaranteed through the sealing ring 31.
The guide collar 40 includes an annular main body 41, a receiving portion 42 extends from the right side of the annular main body 41, a guide opening 43 is formed in the center of the receiving portion 42, and a guide inclined surface 44 is formed between the guide opening 43 and the inner wall of the annular main body 41.
When the pipe fitting 2 is used, in the process of inserting the end of the matched pipe fitting 2 and when the axis of the pipe fitting is not coaxial with the clamping connector 3, the guide inclined surface 44 guides the inserted end of the matched pipe fitting 2 to smoothly enter the guide opening 43, so that the clamping stagnation between the guide sleeve ring 40 and the matched pipe fitting 2 is avoided, and the smooth matching is prevented from being influenced;
the inner end of the guiding port 43 is adjacent to the sealing ring 31 (the length of the closing-in part 42 and the angle parameter of the guiding inclined plane 44 cannot influence the sealing contact between the sealing ring 31 and the matched pipe fitting 2 after the matched pipe fitting 2 is clamped and matched with the clamping joint 3 in design), so that the inner end of the matched pipe fitting 2 calibrated through the guiding port 43 can rapidly enter the sealing ring 31;
further, the guiding collar 40 is made of elastic material (preferably rubber material), when the clamping tool extrudes the clamping connector 3 inwards to form a seal between the matched pipe fitting 2 and the clamping connector 3, the guiding collar 40 elastically deforms and forms resistance to the external detachment of the matched pipe fitting 2, so that the anti-detachment performance of the matched pipe fitting 2 and the clamping and pressing pipe fitting is effectively improved.
The inner diameter of the clamping connector 3 is larger than that of the straight pipe body 1 to form an arc-shaped abutting step 5, and an abutting sleeve ring 50 is arranged in the arc-shaped abutting step 5.
When the pipe fitting is used, the supporting sleeve ring 50, the sealing ring 31 and the guide sleeve ring 40 are sequentially installed when the supporting pipe fitting 2 is inserted, the supporting sleeve ring 50 cannot be pushed inwards continuously until the supporting sleeve ring 40 is propped against the arc-shaped supporting step 5 when the guide sleeve ring 40 is installed, therefore, the supporting sleeve ring 50 is only required to be pushed into the clamping connector 3 in the installation process until the supporting sleeve ring 50 cannot be pushed inwards continuously, and the arc-shaped supporting step 5 reaches the appointed installation position at the moment, so that the installation process is convenient and quick.
The propping lantern ring 50 is provided with an outer cambered surface matched with the cambered propping step 5, a through hole 51 is formed in the inner ring of the propping lantern ring 50, an outer inclined waist 52 is arranged at a port of the through hole 51, which is close to one side of the clamping connector 3, an inner inclined waist 53 is arranged at a port of the other side of the through hole, and the inner diameter of the outer inclined waist 52 gradually contracts from outside to inside; the outer ring of the insertion end of the matched pipe fitting 2 is provided with a tight-supporting inclined waist 20, and the inclination of the tight-supporting inclined waist 20 is matched with the inner diameter of the outer inclined waist 52.
When in use, one end of the matched pipe fitting 2 is inserted into the clamping connector 3 during connection until the propping inclined waist 20 is propped against the outer inclined waist 52 of the propping sleeve ring 50, at the moment, the matched pipe fitting 2 cannot be pushed inwards continuously to indicate that the matched pipe fitting 2 reaches a designated connection position, and at the moment, the matched pipe fitting 2 and the clamping connector 3 are clamped by a clamping tool;
wherein, support tight lantern ring 50 adopts stereoplasm metallic material to make, and supporting pipe fitting 2 and joint 3 are in under the joint state, support tight inclined waist 20 and support tight lantern ring 50 external ramp between form sealedly, and support tight lantern ring 50 and supporting pipe fitting 2 between be the hard seal, through support tight lantern ring 50 and supporting pipe fitting 2 between the double-effect seal guarantee of the soft seal of sealing washer 31, effectively improve supporting pipe fitting 2 and joint 3 between sealed effect.
The inner peripheral surface of the clamping connector 3 is positioned between the annular groove 30 and the arc-shaped butt and is provided with a packing groove 6 in a surrounding mode, and the outer wall of the clamping connector 3 is provided with a plurality of packing holes 60 communicated with the packing groove 6.
When the sealing device is used, when the matched pipe fitting 2 and the clamping connector 3 are in a clamping state, sealing glue solution can be injected into the filling groove 6 through the filling hole 60, the filling groove 6 is filled with the glue solution, and the matching gap between the matched pipe fitting 2 and the clamping connector 3 is filled with the glue solution, so that the connection strength and the sealing effect between the matched pipe fitting 2 and the clamping connector 3 are further improved;
the number of the filling holes 60 is preferably two, the two filling holes are correspondingly arranged on the outer peripheral surface of the clamping connector 3, the glue solution is filled through one of the filling holes 60 until the glue solution overflows from the other filling hole 60, the whole filling groove 6 is filled with the glue solution, and the filling can be stopped at the moment.
The outer opening end of the clamping connector 3 is provided with a flaring.
When the clamping connector is used, the outer opening end of the clamping connector 3 is provided with the flaring, so that the insertion of the matched pipe fitting 2 is guided, and the smoothness of the matching between the matched pipe fitting 2 and the clamping connector 3 is effectively improved.
Also, the terms pointed out by the present utility model are as follows: the directional or positional relationships indicated by the terms "front", "rear", "vertical", "horizontal", etc., are based on the directional or positional relationships shown in the drawings, are merely for convenience in describing the utility model and to simplify the description, and are not indicative or implying that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed to limit the scope of the utility model.
The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (7)
1. The utility model provides a clamping and pressing type pipe fitting, is including straight tube body (1), the both ends of straight tube body (1) extend have joint (3) that are used for grafting supporting pipe fitting (2), its characterized in that: the inner peripheral surface of the clamping connector (3) is concavely provided with an annular groove (30) and a sealing ring (31) is accommodated in the annular groove (30), the inner peripheral surface of the clamping connector (3) is concavely provided with a accommodating groove (4) positioned outside the annular groove (30), the accommodating groove (4) is internally provided with a guide collar (40), and the guide collar (40) guides the insertion path of the matched pipe fitting (2) when the matched pipe fitting (2) is inserted into the clamping connector (3).
2. The clamp-on fitting according to claim 1, wherein: the guide collar (40) comprises an annular main body (41), a closing-in part (42) is extended on the right side of the annular main body (41), a guide through hole (43) is formed in the center of the closing-in part (42), and a guide inclined plane (44) is formed between the guide through hole (43) and the inner wall of the annular main body (41).
3. The clamp-on fitting according to claim 1, wherein: the inner diameter of the clamping connector (3) is larger than that of the straight pipe body (1) to form an arc-shaped abutting step (5), and an abutting sleeve ring (50) is arranged in the arc-shaped abutting step (5).
4. A bayonet fitting according to claim 3, wherein: the supporting collar (50) is provided with an outer cambered surface matched with the arc supporting step (5), a through hole (51) is formed in the inner ring of the supporting collar (50), an outer inclined waist (52) is formed in a port, close to one side of the clamping connector (3), of the through hole (51), an inner inclined waist (53) is formed in a port of the other side of the through hole, and the inner diameter of the outer inclined waist (52) gradually contracts from outside to inside.
5. The clamp-on fitting according to claim 4, wherein: the outer ring of the insertion end of the matched pipe fitting (2) is provided with a tight-supporting inclined waist (20), and the inclination of the tight-supporting inclined waist (20) is matched with the inner diameter of the outer inclined waist (52).
6. The clamp-on fitting according to claim 1, wherein: the inner peripheral surface of the clamping connector (3) is positioned between the annular groove (30) and the arc-shaped butt and is provided with a packing groove (6) in a surrounding mode, and the outer wall of the clamping connector (3) is provided with a plurality of filling holes (60) communicated with the packing groove (6).
7. The clamp-on fitting according to claim 1, wherein: the outer opening end of the clamping connector (3) is provided with a flaring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322341613.9U CN220623059U (en) | 2023-08-29 | 2023-08-29 | Clamping and pressing type pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322341613.9U CN220623059U (en) | 2023-08-29 | 2023-08-29 | Clamping and pressing type pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220623059U true CN220623059U (en) | 2024-03-19 |
Family
ID=90222224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322341613.9U Active CN220623059U (en) | 2023-08-29 | 2023-08-29 | Clamping and pressing type pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220623059U (en) |
-
2023
- 2023-08-29 CN CN202322341613.9U patent/CN220623059U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |