CN218031937U - Pipe connecting piece - Google Patents

Abstract

The utility model relates to a pipe connector, include: the two sides of the first extension pipe are respectively provided with a first matching end and a first interface end; the two sides of the second extension pipe are respectively provided with a second matching end and a second interface end; the sliding groove is positioned on the inner wall of the first extension pipe close to the first interface end, and the length direction of the sliding groove is parallel to the axis of the first extension pipe; the limiting groove is positioned on the inner wall of the first telescopic pipe and is vertically communicated with the sliding groove; the clamping device is arranged at the outer side edge of the second matching end and matched with the sliding groove and the limiting groove; the first extension tube is sleeved outside the second extension tube. This flexible pipe fitting can the length of flexible connecting piece to fix length, only need through let latch device remove on the sliding tray and rotate the flexible pipe of second behind the flexible length of needs, make the joint ball get into the spacing inslot, the joint ball is supported at the spacing inslot by spacing ball again.

Description

Pipe connecting piece

Technical Field

The utility model relates to a pipe fitting technical field, in particular to coupling spare.

Background

The pipe connector is used for connecting soft or hard pipelines and is a common part in building and industrial production.

Chinese patent CN202195198U discloses a radial seal pipeline expansion piece, two ends of an outer sleeve are provided with flanges, one end of the inner sleeve is provided with a flange, the other end of the inner sleeve is positioned in the outer sleeve and is movably matched with an inner cavity of the outer sleeve, two circumferential grooves are arranged on the movable matching surface of the inner cavity of the outer sleeve, O-shaped seal rings are arranged in the grooves, a limit screw penetrates through the flanges opposite to the inner sleeve and the outer sleeve, a first nut is arranged on the limit screw between the two opposite flanges, and a second nut is arranged on the limit screw on the other side of the flange of the outer sleeve.

In the above-mentioned patent, it is comparatively loaded down with trivial details to adjust flexible functional step, needs the use of tool to dismantle a plurality of nuts, just can realize flexible regulatory function, and is not nimble enough, convenient in the operation.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a pipe connector to solve above-mentioned technical problem.

The technical scheme of the utility model is realized like this: a pipe coupling, comprising: the two sides of the first extension pipe are respectively provided with a first matching end and a first interface end; the two sides of the second telescopic pipe are respectively provided with a second matching end and a second interface end; the sliding groove is positioned on the inner wall of the first extension tube close to the first interface end, and the length direction of the sliding groove is parallel to the axial lead of the first extension tube; the limiting groove is positioned on the inner wall of the first telescopic pipe and is vertically communicated with the sliding groove; the clamping device is arranged at the outer side edge of the second matching end and matched with the sliding groove and the limiting groove; wherein, the first extension tube is sleeved outside the second extension tube.

Through adopting the above-mentioned technical scheme, this flexible pipe fitting can realize quick nimble telescopic connection's length, and fix length, only need move on the sliding tray through letting clamping device, when reaching the flexible length of needs, rotatory second is flexible, make the joint ball get into the spacing inslot, make flexible pipe can not produce the displacement in the axial direction again, the joint ball is supported at the spacing inslot by spacing ball again, make the joint ball can not produce the circumferential displacement again, just can play the effect of fixed flexible length this moment, the stability of connecting is further strengthened to the outer thread bush on the spacing pipe of rethread screwing up, because stop device can need not the instrument, convenient and flexible more in the operation.

The utility model discloses further set up to, the latch device still includes: the groove is arranged at the edge of the second matching end; the clamping ball is corresponding to the groove in shape and is in sliding fit with the groove; the elastic piece is positioned at the bottom of the groove and fixedly connected with the clamping ball; when the clamping ball is not under the action of external force, part of the ball body protrudes out of the groove, and the width of the limiting groove is matched with the diameter of the clamping ball.

By adopting the technical scheme, the clamping device is positioned in the front end groove of the second telescopic pipe, and when the clamping ball is not under the action of external force, the clamping ball can be aligned with the sliding groove due to the fact that part of the ball body protrudes out of the groove, and preliminary circumferential positioning of the first telescopic pipe and the second telescopic pipe can be completed in the installation process.

The utility model discloses further set up to, include: the limiting ball is positioned in the limiting groove, and the diameter of the limiting ball corresponds to that of the limiting groove.

Through adopting above-mentioned technical scheme, spacing ball is located between spacing groove and the sliding tray, and the extrusion of having passed through spacing ball before the joint ball gets into the spacing groove makes the joint ball get into and is restricted by spacing ball after the spacing groove, is difficult for because the spacing groove of circumferential motion roll-off, has played stable locate action.

The utility model is further arranged as follows; the limiting ball is hemispherical, and the height of the limiting ball is not more than the depth of the limiting groove.

Through adopting above-mentioned technical scheme, the height of spacing ball is no longer than the degree of depth of spacing groove to do not influence the slip of second flexible pipe in first flexible pipe, make joint ball get into among the spacing groove more easily.

The utility model discloses further set up to, still include: the first flange plate is positioned outside the first interface end; the second flange plate is positioned outside the second interface end; the through hole is formed in the first flange plate; the arc-shaped hole is positioned on the second flange plate; and one end of the limiting pipe is fixedly connected with the through hole, and the other end of the limiting pipe penetrates through the arc-shaped hole and slides in the arc-shaped hole.

Through adopting above-mentioned technical scheme, the through-hole on the first ring flange is used for fixing spacing pipe, and the arc hole purpose of opening on the second ring flange is in order to realize flexible rotation of pipe, and when flexible pipe was rotatory, spacing pipe removed in the arc hole, and the angle that spacing pipe removed in the arc hole is unanimous with the rotatory angle of joint ball in sliding tray and spacing groove.

The utility model discloses further set up to, spacing pipe still includes: the fixing head is provided with an internal thread; the sealing ring is sleeved outside the sealing groove, and one end of the inner pipe, provided with the external thread, penetrates through the arc-shaped hole; one end of the outer pipe is provided with a telescopic groove into which the inner pipe is inserted, and the other end of the outer pipe is fixedly connected with the through hole; the fastening device is sleeved at the interface of the inner pipe and the outer pipe and is used for limiting the relative movement of the inner pipe and the outer pipe; the inner thread of the fixing head is matched with the outer thread on the inner pipe, one end of the inner pipe, which is provided with the sealing groove, is inserted into the telescopic groove, and the bulge and the fixing head of the inner pipe are respectively positioned on two sides of the second flange plate.

By adopting the technical scheme, the sealing groove is formed between the inner pipe and the outer pipe of the limiting pipe and used for installing the sealing ring, the sealing performance can be improved, the inner pipe and the outer pipe of the limiting pipe respectively penetrate through the arc-shaped hole and the through hole, so that the two sections of telescopic pipes are connected with each other, and the limiting pipe cannot fall out of the through hole or the arc-shaped hole through the protrusions and the threaded connection, so that the stability of the telescopic pipe connection is improved.

The utility model discloses further set up to, fastener includes: the inner thread sleeve is fixedly arranged on the outer wall of the outer pipe and is close to the inner pipe; the outer sleeve is sleeved on the inner pipe and matched with the inner sleeve; the side surface of the fixing ring is provided with a notch, and the shape of the fixing ring can deform under the action of external force; extruding a ring; a second seal ring; wherein, gu fixed ring, extrusion ring, second sealing washer overlap in proper order and establish in the inner tube outside and be located outer sleeve, the sealing washer supports presses in outer tube end portion, the outer sleeve is kept away from the one end inner wall of outer tube and is the conical surface, gu fixed ring's one end outer wall is corresponding with the conical surface.

By adopting the technical scheme, the fastening device is used for screwing the outer sleeve to enable the fixing ring to deform and compress after the positioning of the clamping ball and the clamping groove is completed, so that the inner pipe and the outer pipe cannot move in the direction of the axis of the limiting pipe any more.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a cross-sectional view of an unmated tubular connector according to an embodiment of the present invention;

FIG. 2 is a schematic view of a tube B according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view showing the fitting state of the pipe joint according to the embodiment of the present invention;

FIG. 4 is a cross-sectional view of a first extension tube according to an embodiment of the present invention;

FIG. 5 isbase:Sub>A sectional view ofbase:Sub>A first extension tube A-A according to an embodiment of the present invention;

FIG. 6 is a left side view of a second extension tube in accordance with an embodiment of the present invention;

FIG. 7 is a sectional perspective view of the sliding groove, the limiting groove and the limiting ball according to the embodiment of the present invention;

fig. 8 is a top view of a retaining ring according to an embodiment of the present invention.

Reference numerals: 1. a first flange plate; 2. a second flange plate; 4. a first telescopic tube; 5. a second telescopic tube; 6. a sliding groove; 8. an arc-shaped hole; 9. a groove; 10. clamping the ball; 11. an elastic member; 12. a limiting groove; 13. a limiting ball; 14. a through hole; 15. a fixed head; 16. an inner tube; 17. an outer tube; 18. a first seal ring; 19. a telescopic groove; 20. a first interface end; 21. a second interface end; 30. a second mating end; 31. a first mating end; 40. an inner threaded sleeve; 41. a second seal ring; 42. a fixing ring; 43. an external thread sleeve; 44. extruding a ring; 45. a protrusion; 46. a sealing groove; 47. a conical surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 8, the utility model discloses a pipe connector, include: a first extension tube 4, both sides of the first extension tube 4 being respectively provided with a first mating end 31 and a first interface end 20; a second extension tube 195, both sides of the second extension tube 5 being provided with a second mating end 30 and a second interface end 21, respectively; the sliding groove 6 is positioned on the inner wall of the first extension tube 4 close to the first interface end 20, and the length direction of the sliding groove 6 is parallel to the axial lead of the first extension tube 4; the limiting groove 12 is positioned on the inner wall of the first extension tube 4 and is vertically communicated with the sliding groove 6; the clamping device is arranged at the outer side edge of the second matching end 30 and matched with the sliding groove 6 and the limiting groove 12; wherein, the first extension tube 4 is sleeved outside the second extension tube 5. This flexible pipe fitting can realize quick nimble telescopic connection's length, and fix length, only need remove on sliding tray 6 through letting latch device, when reaching the flexible length of needs, rotatory second flexible pipe 5, make joint ball 10 get into spacing inslot 12, make flexible pipe can not produce the displacement in the axial direction again, joint ball 10 is supported at spacing inslot 12 by spacing ball 13 again, make joint ball 10 can not produce the circumference displacement again, just can play the effect of fixed flexible length this moment, the stability of connecting is further strengthened to outer thread bush 43 on the spacing pipe is screwed up to the rethread, because stop device can need not the instrument, it is convenient nimble more in the operation.

In the embodiment of the present invention, the present invention further includes: a groove 9, the groove 9 being provided at the edge of the second mating end 30; a snap ball 10, said snap ball 10 corresponding in shape to said groove 9 and being a sliding fit; the elastic piece 11 is positioned at the bottom of the groove 9, and the elastic piece 11 is fixedly connected with the clamping ball 10; when the clamping ball 10 is not affected by external force, part of the ball body protrudes out of the groove 9, and the width of the limiting groove 12 is matched with the diameter of the clamping ball 10. By adopting the technical scheme, the clamping device is positioned in the groove 9 at the front end of the second telescopic pipe 5, when the clamping ball 10 is not under the action of external force, because part of the ball body of the clamping ball protrudes out of the groove 9, the ball body of the protruding part of the clamping ball 10 can be aligned with the sliding groove 6, and the primary circumferential positioning of the first telescopic pipe 4 and the second telescopic pipe 5 can be completed in the installation process.

In the embodiment of the present invention, the present invention further comprises: and the limiting ball 13 is positioned in the limiting groove 12, and the diameter of the limiting ball 13 corresponds to that of the limiting groove 12. Through adopting above-mentioned technical scheme, spacing ball 13 is located between spacing groove 12 and sliding tray 6, has passed through spacing ball 13's extrusion before clamping ball 10 gets into spacing groove 12, makes clamping ball 10 get into spacing groove 12 after by spacing ball 13 restriction, is difficult for because circumferential motion roll-off spacing groove 12 has played stable positioning action.

In the embodiment of the present invention, the present invention further includes: the limiting ball 13 is hemispherical, and the height of the limiting ball 13 is not more than the depth of the limiting groove 12. By adopting the technical scheme, the height of the limiting ball 13 is not more than the depth of the limiting groove 12, so that the sliding of the second telescopic pipe 5 in the first telescopic pipe 4 is not influenced, and the clamping ball 10 can more easily enter the limiting groove 12.

In the embodiment of the present invention, the present invention further comprises: a first flange 1, said first flange 1 being located outside of the first interface end 20; a second flange 2, said second flange 2 being located outside of the second interface end 21; the through hole 14 is formed in the first flange plate 1, and the through hole 14 is formed in the first flange plate 1; the arc-shaped hole 8 is formed in the second flange plate 2, and the arc-shaped hole 8 is formed in the second flange plate; and one end of the limiting pipe is fixedly connected with the through hole 14, and the other end of the limiting pipe penetrates through the arc-shaped hole 8 and slides in the arc-shaped hole 8. Through adopting above-mentioned technical scheme, through-hole 14 on the first ring flange 1 is used for fixing spacing pipe, and the arc hole 8 purpose of opening on the second ring flange 2 is in order to realize the rotation of flexible pipe, and when flexible pipe was rotatory, spacing pipe removed in arc hole 8, and the angle that spacing pipe removed in arc hole 8 is unanimous with the angle that joint ball 10 rotated in sliding tray 6 and spacing groove 12.

In the embodiment of the present invention, the present invention further includes: a fixed head 15, wherein the fixed head 15 is provided with an internal thread; the sealing structure comprises an inner pipe 16, wherein one end of the inner pipe 16 is provided with a bulge 45 and an external thread, the external thread is arranged close to the end part, the outer wall of the other end of the inner pipe is provided with a sealing groove 46, a first sealing ring 18 is sleeved outside the sealing groove 46, and one end of the inner pipe 16 provided with the external thread penetrates through an arc-shaped hole 8; one end of the outer pipe 17 is provided with a telescopic groove 19 for inserting the inner pipe 16, and the other end of the outer pipe 17 is fixedly connected with the through hole 14; fastening devices sleeved at the interface of the inner pipe 16 and the outer pipe 17, wherein the fastening devices are used for limiting the relative movement of the inner pipe 16 and the outer pipe 17; the internal thread of the fixing head 15 is matched with the external thread on the inner tube 16, one end of the inner tube 16, which is provided with the sealing groove 46, is inserted into the telescopic groove 19, and the protrusion 45 of the inner tube 16 and the fixing head 15 are respectively located at two sides of the second flange 2. Through adopting above-mentioned technical scheme, be equipped with seal groove 46 between the inner tube 16 of spacing pipe and outer tube 17 for adorn the sealing washer, can improve the leakproofness, the inner tube 16 and the outer tube 17 of spacing pipe pass arc hole 8 and through-hole 14 respectively, make two sections flexible pipe interconnect, rethread protrusion 45 and threaded connection make spacing pipe can not fall out from through-hole 14 or arc hole 8, increase flexible union coupling's stability.

In the embodiment of the present invention, the present invention further comprises: the inner threaded sleeve 40 is fixedly arranged on the outer wall of the outer pipe 17 and is close to the inner pipe 16; an outer sleeve 43, wherein the outer sleeve 43 is sleeved on the inner pipe 16 and is matched with the inner threaded sleeve 40; the side surface of the fixing ring 42 is provided with a notch, and the shape of the fixing ring 42 can be deformed under the action of external force; a pressing ring 44; a second seal ring 41; wherein, gu fixed ring 42, extrusion ring 44, second sealing washer 41 overlap in proper order and establish in the inner tube 16 outside and be located outer jacket 43, second sealing washer 41 supports presses at outer tube 17 tip, the one end inner wall that outer jacket 43 kept away from outer tube 17 is conical surface 47, gu fixed ring 42's one end outer wall is corresponding with conical surface 47. By adopting the technical scheme, the fastening device is used for screwing the outer thread sleeve 43 to enable the fixing ring 42 to generate deformation and compression after the clamping ball 10 and the limiting groove 12 are positioned, so that the inner pipe 16 and the outer pipe 17 can not generate movement along the axis direction of the limiting pipe any more, because the inner wall of the outer thread sleeve 43 is provided with the conical surface 47, the second sealing ring 41 is pressed against the outer pipe 17 along with the force in the axial direction when the outer thread sleeve 43 is screwed, the axial connection stability is increased, and the outer thread sleeve 43 is unscrewed to reselect the length when different lengths are needed, and the device can be operated by hands, so that the operation is flexible and convenient.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A pipe coupling, comprising:

the telescopic pipe comprises a first telescopic pipe (4), wherein a first matching end (31) and a first interface end (20) are respectively arranged on two sides of the first telescopic pipe (4);

a second telescopic pipe (5), wherein a second matching end (30) and a second interface end (21) are respectively arranged at two sides of the second telescopic pipe (5);

the sliding groove (6) is positioned on the inner wall, close to the first interface end (20), of the first telescopic pipe (4), and the length direction of the sliding groove (6) is parallel to the axial lead of the first telescopic pipe (4);

the limiting groove (12) is positioned on the inner wall of the first extension tube (4) and is vertically communicated with the sliding groove (6);

the clamping device is arranged at the outer side edge of the second matching end (30) and matched with the sliding groove (6) and the limiting groove (12);

wherein, the first extension pipe (4) is sleeved outside the second extension pipe (5).

2. The pipe coupling according to claim 1, wherein the clamping means further comprises:

the groove (9), the groove (9) is arranged at the edge of the second matching end (30);

a snap ball (10), the shape of the snap ball (10) corresponds to the shape of the groove (9), and the snap ball is in sliding fit with the groove;

the elastic piece (11), the elastic piece (11) is located at the bottom of the groove (9), and the elastic piece (11) is fixedly connected with the clamping ball (10);

when the clamping ball (10) is not under the action of external force, part of the ball body protrudes out of the groove (9), and the width of the limiting groove (12) is matched with the diameter of the clamping ball (10).

3. The pipe coupling of claim 1, further comprising:

the limiting ball (13) is positioned in the limiting groove (12), and the diameter of the limiting ball (13) corresponds to that of the limiting groove (12).

4. A pipe coupling according to claim 3, wherein: the limiting ball (13) is hemispherical, and the height of the limiting ball (13) is not more than the depth of the limiting groove (12).

5. The pipe coupling of claim 1, further comprising:

the first flange plate (1), the first flange plate (1) is positioned outside the first interface end (20);

the second flange plate (2), the second flange plate (2) is positioned outside the second interface end (21);

the through hole (14), the through hole (14) is arranged on the first flange plate (1);

the arc-shaped hole (8), the arc-shaped hole (8) is positioned on the second flange plate (2);

and one end of the limiting pipe is fixedly connected with the through hole (14), and the other end of the limiting pipe penetrates through the arc-shaped hole (8) and slides in the arc-shaped hole (8).

6. The pipe coupling of claim 5, wherein the spacing pipe further comprises:

a fixed head (15), the fixed head (15) being provided with an internal thread;

the sealing device comprises an inner pipe (16), wherein one end of the inner pipe (16) is provided with a bulge (45) and an external thread, the external thread is arranged close to the end part, the outer wall of the other end of the inner pipe is provided with a sealing groove (46), a first sealing ring (18) is sleeved outside the sealing groove (46), and one end of the inner pipe (16) provided with the external thread penetrates through an arc-shaped hole (8);

one end of the outer pipe (17) is provided with a telescopic groove (19) for inserting the inner pipe (16), and the other end of the outer pipe (17) is fixedly connected with the through hole (14);

the fastening device is sleeved at the interface of the inner pipe (16) and the outer pipe (17) and is used for limiting the relative movement of the inner pipe (16) and the outer pipe (17);

the inner thread of the fixing head (15) is matched with the outer thread on the inner pipe (16), one end, provided with the sealing groove (46), of the inner pipe (16) is inserted into the telescopic groove (19), and the protrusions (45) of the inner pipe (16) and the fixing head (15) are located on two sides of the second flange plate (2) respectively.

7. A pipe coupling according to claim 6, wherein the fastening means comprises:

the inner threaded sleeve (40) is fixedly arranged on the outer wall of the outer pipe (17) and is close to the inner pipe (16);

the outer sleeve (43), the said outer sleeve (43) is fitted over the inner pipe (16) and cooperates with inner sleeve (40);

the side surface of the fixing ring (42) is provided with a notch, and the shape of the fixing ring (42) can deform under the action of external force;

a pressing ring (44);

a second seal ring (41);

wherein, gu fixed ring (42), extrusion ring (44), second sealing washer (41) overlap in proper order and establish in inner tube (16) outside and be located outer jacket (43), second sealing washer (41) support and press in outer tube (17) tip, the one end inner wall that the outer tube was kept away from in outer jacket (43) is conical surface (47), the one end outer wall of fixed ring (42) is corresponding with conical surface (47).

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