CN210266250U - Pipeline connecting piece - Google Patents
Pipeline connecting piece Download PDFInfo
- Publication number
- CN210266250U CN210266250U CN201920650033.9U CN201920650033U CN210266250U CN 210266250 U CN210266250 U CN 210266250U CN 201920650033 U CN201920650033 U CN 201920650033U CN 210266250 U CN210266250 U CN 210266250U
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- China
- Prior art keywords
- hole
- ring
- connecting seat
- pressing
- connecting piece
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- Expired - Fee Related
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Abstract
The utility model discloses a pipeline connecting piece, the connecting seat is of a symmetrical structure, a first compression nut is matched on one side of the connecting seat, a first compression ring and a first sealing ring are positioned between the first compression nut and the connecting seat, a second compression nut is matched on the other side of the connecting seat, a second compression ring and a second sealing ring are positioned between the second compression nut and the connecting seat, two pipe fittings to be connected are respectively compressed by the first compression ring and the second compression ring, thereby connecting the two pipe fittings with the pipeline connecting piece; utilize the thrust compression sealing washer of clamp ring, make the sealed effect of sealing washer more firm, the screw thread interlock of gland nut and connecting seat receives clamp ring spring and sealing washer backpressure again, and the not hard up resistance of gland nut when having strengthened the pipe fitting and having received vibrations.
Description
Technical Field
The utility model relates to a connecting piece technical field especially relates to a pipeline connecting piece.
Background
The existing pipeline connecting piece has strict requirements on the depth and the width of a pipe material pressure groove, a special tool for the pressure groove must be used for pressing the groove, the tool is high in cost and heavy, a sealing ring in the connecting piece does not have active sealing performance, and sealing safety is low.
SUMMERY OF THE UTILITY MODEL
For the technical problem who exists among the solution background art, the utility model provides a pipeline connecting piece.
The utility model provides a pipeline connecting piece, which comprises a connecting seat, a first connecting piece, a first pressing ring and a first sealing ring;
the connecting seat is provided with a first through hole, and a first limiting part is arranged in the first through hole;
the first connecting piece is provided with a second through hole, and a second limiting part is arranged in the second through hole;
the first connecting piece is in threaded connection with the connecting seat, and the first through hole and the second through hole form a first accommodating cavity;
the first pressing ring comprises a first base part and a plurality of first pressing sheets, the first base part is of an annular structure, the first pressing sheets are fixed on the same side of the first base part and are arranged at intervals along the circumferential direction of the first base part, and the sectional area of the annular structure formed by the first pressing sheets in an enclosing mode is gradually reduced from one side close to the first base part to the side far away from the first base part;
the first pressing ring is located in the first containing cavity, the first base portion abuts against the second limiting portion, the first sealing ring is located in the first containing cavity, the first side of the first sealing ring abuts against the plurality of first pressing pieces, and the second side of the first sealing ring abuts against the first limiting portion.
Preferably, the sealing device further comprises a second connecting piece, a second pressing ring and a second sealing ring;
the connecting seat is provided with a third through hole which is communicated with the first through hole, and a third limiting part is arranged in the third through hole;
the second connecting piece is provided with a fourth through hole, and a fourth limiting part is arranged in the fourth through hole;
the second connecting piece is in threaded connection with the connecting seat, and the third through hole and the fourth through hole form a second accommodating cavity;
the second pressing ring comprises a second base part and a plurality of second pressing sheets, the second base part is of an annular structure, the second pressing sheets are fixed on the same side of the second base part and are arranged at intervals along the circumferential direction of the second base part, and the sectional area of the annular structure formed by the second pressing sheets in a surrounding mode is gradually reduced from one side close to the second base part to the side far away from the second base part;
the second pressing ring is located in the second containing cavity, the second base portion abuts against the fourth limiting portion, the second sealing ring is located in the second containing cavity, the first side of the second sealing ring abuts against the second pressing pieces, and the second side of the second sealing ring abuts against the third limiting portion.
Preferably, the connecting seat is provided with a first internal thread close to the inner wall of the first through hole, the outer wall of the first connecting piece is provided with a first external thread, and the first internal thread is matched with the first external thread; or the outer wall of the connecting seat is provided with second external threads, the inner wall of the first connecting piece, which is close to the second through hole, is provided with second internal threads, and the second external threads are matched with the second internal threads.
Preferably, a third internal thread is arranged on the connecting seat close to the inner wall of the third through hole, a third external thread is arranged on the outer wall of the second connecting piece, and the third internal thread is matched with the third external thread; or the outer wall of the connecting seat is provided with a fourth external thread, the inner wall of the second connecting piece, which is close to the fourth through hole, is provided with a fourth internal thread, and the fourth external thread is matched with the fourth internal thread.
Preferably, the first connecting piece abuts against the first limiting part; or the connecting seat is abutted against the second limiting part.
Preferably, the second connecting piece abuts against the third limiting part; or the connecting seat is abutted against the fourth limiting part.
Preferably, the first pressing pad is arranged between the first sealing ring and the plurality of first pressing pieces.
Preferably, the device further comprises a second pressing pad (located between the second sealing ring and the plurality of second pressing sheets).
In the utility model, the proposed pipe connecting piece is characterized in that a first connecting piece, a first pressing ring and a first sealing ring are sleeved at the end part of a pipe fitting to be connected, and then the first connecting piece is screwed on a connecting seat, and in the process of gradually screwing the first connecting piece, the acting force of a plurality of first pressing pieces and the first sealing ring is gradually increased, so that the end part of the pipe fitting is locked in a first accommodating cavity by extruding the pipe fitting through the plurality of first pressing pieces, and the pipe fitting is connected with the first connecting seat and the first connecting piece; and the acting force of the first pressing ring on the first sealing ring presses the sealing ring, so that the sealing effect of the sealing ring is firmer, the first connecting piece is meshed with the thread of the connecting seat and is subjected to the reverse acting force of the first pressing ring and the first sealing ring, and the looseness resistance of the first connecting piece when the pipe fitting is vibrated is enhanced.
Drawings
Fig. 1 is a schematic structural view of a pipe connector according to the present invention;
fig. 2 is an exploded view of a pipe connector according to the present invention;
fig. 3 is an exploded view of a pipe connector according to the present invention;
fig. 4 is a schematic structural view of a first clamp ring in a pipe connector provided by the present invention.
Detailed Description
As shown in fig. 1-4, fig. 1 is the utility model provides a structural schematic diagram of a pipe connection spare, fig. 2 is the utility model provides a pipe connection spare's explosion schematic diagram, fig. 3 is the utility model provides a pipe connection spare's explosion schematic diagram, fig. 4 is the utility model provides a structural schematic diagram of first clamp ring in the pipe connection spare.
Referring to fig. 1-3, the utility model provides a pipe connector for connecting two pipe fittings or connecting a pipe fitting to external equipment, which specifically comprises a connecting seat 1, a first connecting piece 2, a first pressing ring and a first sealing ring 4;
the connecting seat 1 is provided with a first through hole, a first limiting part 11 is arranged in the first through hole, the first limiting part 11 can be a bulge formed on the inner wall of the first through hole, in the embodiment, the inner diameter of one side of the first through hole is reduced to achieve the purpose of limiting, and other structures capable of limiting can also be used;
the first connecting piece 2 is provided with a second through hole, a second limiting part 21 is arranged in the second through hole, the second limiting part 21 can be a protrusion formed on the inner wall of the second through hole, the inner diameter of one side of the second through hole is reduced to achieve the purpose of limiting in the embodiment, and other structures capable of limiting can also be used;
the first connecting piece 2 is in threaded connection with the connecting seat 1, and the first through hole and the second through hole are matched together to form a first accommodating cavity;
referring to fig. 4, the first pressing ring includes a first base portion 31 and a plurality of first pressing pieces 32, the first base portion 31 is in an annular structure, the plurality of first pressing pieces 32 are fixed on the same side of the first base portion 31 and are arranged at intervals along the circumferential direction of the first base portion 31, the cross-sectional area of the annular structure formed by the plurality of first pressing pieces 32 in a surrounding manner is gradually reduced from the side close to the first base portion 31 to the side far away from the first base portion 31, so that the first base portion 31 and the plurality of first pressing pieces 32 form a structure with a circular truncated cone shape in appearance;
the first pressing ring is located in the first accommodating cavity, the first base part 31 abuts against the second limiting part 21, the first pressing ring is maintained in the first accommodating cavity, the first sealing ring 4 is located in the first accommodating cavity coaxially, the first side of the first sealing ring 4 abuts against the plurality of first pressing pieces 32, and the second side of the first sealing ring 4 abuts against the first limiting part 11.
According to the pipeline connecting piece provided by the embodiment, the first connecting piece 2, the first pressing ring and the first sealing ring 4 are sleeved at the end part of one pipe fitting to be connected, then the first connecting piece 2 is screwed on the connecting seat 1, and in the process that the first connecting piece 2 is screwed gradually, the acting force of the plurality of first pressing pieces 32 and the first sealing ring 4 is gradually increased, so that the plurality of first pressing pieces 32 extrude the pipe fitting to lock the end part of the pipe fitting in the first accommodating cavity, and the pipe fitting is further connected with the first connecting seat 1 and the first connecting piece 2; the acting force of the first pressing ring on the first sealing ring 4 presses the sealing ring, so that the sealing effect of the sealing ring is firmer, the first connecting piece 2 is meshed with the threads of the connecting seat 1 and is subjected to the reverse acting force of the first pressing ring and the first sealing ring 4, and the resistance of loosening of the first connecting piece 2 when the pipe fitting is vibrated is enhanced; the connecting base 1 is connected with another pipe fitting or external equipment, so that the purpose of connecting the two pipe fittings or the purpose of connecting the pipe fitting and the external equipment is achieved.
If two pipe fittings are connected, the pipe fitting connector also comprises a second connecting piece 5, a second pressing ring and a second sealing ring 7;
the connecting seat 1 is provided with a third through hole, the third through hole is communicated with the first through hole, a third limiting part 12 is arranged in the third through hole, the third limiting part 12 is positioned on one side of the third through hole close to the first through hole, the third limiting part 12 can be a bulge formed on the inner wall of the third through hole, in the embodiment, the inner diameter of one side of the third through hole is reduced to achieve the purpose of limiting, and other structures capable of achieving limiting can also be used;
the second connecting piece 5 is provided with a fourth through hole, a fourth limiting part 51 is arranged in the fourth through hole, the fourth limiting part 51 can be a protrusion formed on the inner wall of the fourth through hole, in the embodiment, the inner diameter of one side of the fourth through hole is reduced to achieve the purpose of limiting, and other structures capable of limiting can also be used;
the second connecting piece 5 is in threaded connection with the connecting seat 1, and the third through hole and the fourth through hole are matched with each other to form a second accommodating cavity;
the second pressing ring comprises a second base part 61 and a plurality of second pressing sheets 62, the second base part 61 is in an annular structure, the second pressing sheets 62 are fixed on the same side of the second base part 61 and are arranged at intervals along the circumferential direction of the second base part 61, the sectional area of the annular structure formed by the second pressing sheets 62 in a surrounding mode is gradually reduced from one side close to the second base part 61 to one side far away from the second base part 61, and therefore the second base part 61 and the second pressing sheets 62 form a structure with the appearance of a circular truncated cone shape;
the second pressing ring is located in the second accommodating cavity, the second base portion 61 abuts against the fourth limiting portion 51 to maintain the second pressing ring to be located in the second accommodating cavity, the second sealing ring 7 is located in the second accommodating cavity, a first side of the second sealing ring 7 abuts against the plurality of second pressing pieces 62, and a second side of the second sealing ring 7 abuts against the third limiting portion 12.
Similarly, the second connecting piece 5, the second pressing ring and the second sealing ring 7 are sleeved on the end part of one pipe fitting to be connected, then the second connecting piece 5 is screwed on the connecting seat 1, in the process that the second connecting piece 5 is gradually screwed, the acting force of the plurality of second pressing pieces 62 and the second sealing ring 7 is gradually increased, so that the plurality of second pressing pieces 62 extrude the pipe fitting to lock the end part of the pipe fitting in the second accommodating cavity, and the pipe fitting is further connected with the second connecting seat 1 and the second connecting piece 5; and the effort to second sealing washer 7 of second clamp ring compresses tightly the sealing washer, makes the sealed effect of second sealing washer 7 more firm, and the screw thread interlock of second connecting piece 5 and connecting seat 1 receives second clamp ring and 7 reverse efforts of second sealing washer again, has strengthened the not hard up resistance of second connecting piece 5 when the pipe fitting receives vibrations.
In this embodiment, the inner wall of the connecting seat 1 close to the first through hole is provided with a first internal thread, the outer wall of the first connecting piece 2 is provided with a first external thread, and the first internal thread is matched with the first external thread; in another design mode, the outer wall of the connecting seat 1 is provided with a second external thread, the inner wall of the first connecting piece 2, which is close to the second through hole, is provided with a second internal thread, and the second external thread is matched with the second internal thread to achieve the purpose of connecting the connecting seat 1 and the first connecting piece 2.
Similarly, in this embodiment, the connecting seat 1 is provided with a third internal thread near the inner wall of the second through hole, and the outer wall of the second connecting piece 5 is provided with a third external thread, and the third internal thread is matched with the third external thread; in another design, the outer wall of the connecting seat 1 is provided with a fourth external thread, the inner wall of the second connecting piece 5 close to the fourth through hole is provided with a fourth internal thread, and the fourth external thread is matched with the fourth internal thread.
In this embodiment, the first connecting piece 2 abuts against the first limiting part 11, so that the first sealing ring 4 is completely positioned in the second through hole, the peripheral wall of the first sealing ring 4 completely abuts against the inner wall of the second through hole, and the sealing is tighter; if the connecting seat 1 is provided with a second external thread, the first connecting piece 2 is provided with a second internal thread, the connecting seat 1 is abutted against the second limiting part 21, the inner wall of the first through hole is abutted against the outer peripheral wall of the first sealing ring 4, and tight sealing is ensured.
In this embodiment, the second connecting member 5 abuts against the second limiting portion 21, so that the second sealing ring 7 is completely located in the fourth through hole, the outer peripheral wall of the second sealing ring 7 completely abuts against the inner wall of the fourth through hole, and sealing is more tight; if the connecting seat 1 is provided with a fourth external thread, the second connecting piece 5 is provided with a fourth internal thread, the connecting seat 1 is abutted against the fourth limiting part 51, the inner wall of the third through hole is abutted against the outer peripheral wall of the second sealing ring 7, and sealing tightness is ensured.
If the pipe fitting tip is equipped with the round recess, the one end that the basal portion was kept away from to a plurality of holding-down strips is impressed in the recess to further strengthen the locking force of holding-down strip to the pipe fitting, the biggest drawing force that can bear between pipe fitting and the pipe connection spare obtains improving.
The second sealing ring 7 is a rubber part, there is the interval between a plurality of second pressing pieces 62, the round platform structure that a plurality of second pressing pieces 62 enclose is unevenness, a plurality of second pressing pieces 62 and second sealing ring 7 extrude inseparably, in order to ensure that the cooperation is inseparable between second sealing ring 7 and the second pressing ring, in this embodiment, still include second extrusion pad 9, second extrusion pad 9 is located between second sealing ring 7 and a plurality of second pressing pieces 62, second extrusion pad 9 is the working of plastics, second extrusion pad 9 separates second sealing ring 7 and second pressing ring, second sealing ring 7 and second extrusion pad 9 cooperation are inseparable, second extrusion pad 9 and second pressing ring cooperation are inseparable, second extrusion pad 9 can be the metal material also can be the plastics material.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. A pipeline connecting piece is characterized by comprising a connecting seat (1), a first connecting piece (2), a first pressing ring and a first sealing ring (4);
the connecting seat (1) is provided with a first through hole, and a first limiting part (11) is arranged in the first through hole;
the first connecting piece (2) is provided with a second through hole, and a second limiting part (21) is arranged in the second through hole;
the first connecting piece (2) is in threaded connection with the connecting seat (1), and the first through hole and the second through hole form a first accommodating cavity;
the first pressing ring comprises a first base part (31) and a plurality of first pressing sheets (32), the first base part (31) is of an annular structure, the first pressing sheets (32) are fixed on the same side of the first base part (31) and are arranged at intervals along the circumferential direction of the first base part (31), and the cross section area of the annular structure formed by the first pressing sheets (32) in a surrounding mode is gradually reduced from one side close to the first base part (31) to one side far away from the first base part (31);
the first pressing ring is located in the first accommodating cavity, the first base portion (31) abuts against the second limiting portion (21), the first sealing ring (4) is located in the first accommodating cavity, the first side of the first sealing ring (4) abuts against the plurality of first pressing pieces (32), and the second side of the first sealing ring (4) abuts against the first limiting portion (11).
2. The pipe connection according to claim 1, further comprising a second connector (5), a second compression ring and a second sealing ring (7);
a third through hole is formed in the connecting seat (1), the third through hole is communicated with the first through hole, and a third limiting part (12) is arranged in the third through hole;
the second connecting piece (5) is provided with a fourth through hole, and a fourth limiting part (51) is arranged in the fourth through hole;
the second connecting piece (5) is in threaded connection with the connecting seat (1), and the third through hole and the fourth through hole form a second accommodating cavity;
the second pressing ring comprises a second base part (61) and a plurality of second pressing sheets (62), the second base part (61) is of an annular structure, the second pressing sheets (62) are fixed on the same side of the second base part (61) and are arranged at intervals along the circumferential direction of the second base part (61), and the cross section area of the annular structure formed by the second pressing sheets (62) in a surrounding mode is gradually reduced from one side close to the second base part (61) to one side far away from the second base part (61);
the second pressing ring is located in the second containing cavity, the second base portion (61) abuts against the fourth limiting portion (51), the second sealing ring (7) is located in the second containing cavity, the first side of the second sealing ring (7) abuts against the second pressing pieces (62), and the second side of the second sealing ring (7) abuts against the third limiting portion (12).
3. The pipe connection according to claim 1, characterized in that the inner wall of the first through hole is provided with a first internal thread, the outer wall of the first connection piece (2) is provided with a first external thread, and the first internal thread is matched with the first external thread; or the outer wall of the connecting seat (1) is provided with a second external thread, the inner wall of the second through hole is provided with a second internal thread, and the second external thread is matched with the second internal thread.
4. The pipe connection according to claim 2, wherein the inner wall of the third through hole is provided with a third internal thread, the outer wall of the second connection piece (5) is provided with a third external thread, and the third internal thread is matched with the third external thread; or the outer wall of the connecting seat (1) is provided with a fourth external thread, the inner wall of the fourth through hole is provided with a fourth internal thread, and the fourth external thread is matched with the fourth internal thread.
5. A pipe connection according to claim 3, characterized in that the first connection element (2) abuts against the first stop portion (11); or the connecting seat (1) is abutted against the second limiting part (21).
6. The pipe connection according to claim 4, characterized in that the second connection piece (5) abuts against the third stop portion (12); or the connecting seat (1) is abutted against the fourth limiting part (51).
7. The pipe connection according to claim 1, further comprising a first squeeze pad (8), the first squeeze pad (8) being located between the first seal ring (4) and the plurality of first squeeze tabs (32).
8. The pipe connection according to claim 2, further comprising a second squeeze pad (9), the second squeeze pad (9) being located between the second seal ring (7) and the plurality of second squeeze tabs (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920650033.9U CN210266250U (en) | 2019-05-08 | 2019-05-08 | Pipeline connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920650033.9U CN210266250U (en) | 2019-05-08 | 2019-05-08 | Pipeline connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210266250U true CN210266250U (en) | 2020-04-07 |
Family
ID=70024224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920650033.9U Expired - Fee Related CN210266250U (en) | 2019-05-08 | 2019-05-08 | Pipeline connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210266250U (en) |
-
2019
- 2019-05-08 CN CN201920650033.9U patent/CN210266250U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200407 |