CN112657049A - Connecting structure for sealing and locking guide pipe - Google Patents
Connecting structure for sealing and locking guide pipe Download PDFInfo
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- CN112657049A CN112657049A CN202011613646.9A CN202011613646A CN112657049A CN 112657049 A CN112657049 A CN 112657049A CN 202011613646 A CN202011613646 A CN 202011613646A CN 112657049 A CN112657049 A CN 112657049A
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- sleeve
- sealing
- guide pipe
- conduit
- pushing
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Abstract
The invention discloses a connecting structure for sealing and locking guide pipes, which comprises at least two guide pipes, wherein the two guide pipes are respectively a first guide pipe and a second guide pipe, the first guide pipe and the second guide pipe are coaxially fixed through a sealing and locking device, the sealing and locking device comprises a two-way joint, a group of abutting and pushing sealing parts are respectively arranged inside the left side and the right side of the two-way joint, each group of abutting and pushing sealing parts respectively comprises a sealing ring and an elastic sleeve which are coaxially arranged in the two-way joint, a limiting ring surface which is coaxially attached to one side end surface of the sealing ring is respectively arranged inside the left side and the right side of the two-way joint, the other side end surface of the sealing ring is coaxially attached to one end surface of the elastic sleeve, one end of the first guide pipe and one end of the second guide pipe are respectively coaxially inserted into the sealing rings of the two groups of abutting and, The inner hole of the sealing ring is contracted to clamp the push-and-lock connecting piece of the first guide pipe and the second guide pipe.
Description
Technical Field
The invention relates to the technical field of medical instrument connecting devices, in particular to a connecting structure for sealing and locking a catheter.
Background
In recent years, because of small wound and fast operation recovery of minimally invasive surgery, the minimally invasive surgery is generally used in the treatment fields of nasopharyngeal cavity treatment, renal pelvis stone removal and the like at present, in the minimally invasive surgery, the connection between various medical catheters has certain requirements of sealing, leakage prevention and position locking, reliable sealing connection between liquid and gas conveying catheters with certain pressure and between the catheters and medical instrument shafts needs to be ensured, the orifice of the closed catheter can be blocked, the leakage of fluid cannot be caused, the position of the connected catheter or shaft can be effectively locked, and the slippage or change of the position cannot be generated in the use process.
Disclosure of Invention
The invention aims to solve the defects of the background technology and provide a connecting structure for sealing and locking a guide pipe and a guide pipe, which has good sealing performance and high reliability.
In order to achieve the purpose, the invention designs a connecting structure for sealing and locking a conduit, which comprises at least two conduits, and is characterized in that: the two guide pipes are respectively a first guide pipe and a second guide pipe, the first guide pipe and the second guide pipe are coaxially fixed through a sealing locking device, the sealing locking device comprises a two-way joint, a shaft hole is formed in the two-way joint, a limiting ring is coaxially fixed in the middle of the shaft hole, a group of abutting and pushing sealing pieces are respectively arranged on the left side and the right side of the limiting ring, each group of abutting and pushing sealing pieces comprises a sealing ring and an elastic sleeve which are coaxially arranged in the shaft hole of the two-way joint, ring faces on the left side and the right side of the limiting ring are respectively attached to inner side end faces of the two sealing rings, outer end faces of the two sealing rings are respectively attached to inner side end faces of the two elastic sleeves, one end of the first guide pipe and one end of the second guide pipe are respectively coaxially inserted into the sealing rings of the two groups of abutting and pushing sealing pieces, and the joint of the first guide pipe and the second, and the left side and the right side of the bidirectional joint are respectively and fixedly provided with a pushing locking connecting piece which is used for coaxially pushing the end surface of the outer side of the elastic sleeve to enable the inner hole of the sealing ring to contract and clamp the first guide pipe and the second guide pipe.
Furthermore, the bidirectional joint comprises a bidirectional joint sleeve, the inner surface of the middle of the bidirectional joint sleeve is fixedly connected with the limiting ring, the ring surfaces of the left side and the right side of the limiting ring are respectively and coaxially and fixedly connected with an installation sleeve, the sealing ring and the elastic sleeve are coaxially arranged in the installation sleeve, and the installation sleeves of the left side and the right side of the bidirectional joint are respectively and coaxially fixed with one to push the locking connecting piece.
Furthermore, the pushing and locking connecting piece comprises a pushing piece and a locking piece, wherein the pushing piece is used for coaxially pushing the end face of the outer side of the elastic sleeve, enabling the inner hole of the sealing ring to contract and clamp the first conduit or the second conduit, and the locking piece is used for coaxially fixing the mounting sleeve and the pushing piece.
Further, the installation sleeve include coaxial coupling in sealing ring position sleeve and interval on the anchor ring of spacing ring connect in polylith circular arc shaped plate on the outside circumference terminal surface of sealing ring position sleeve, the surface of circular arc shaped plate is equipped with the external screw thread, the retaining member include with the polylith circular arc shaped plate threaded connection's lock nut.
Further, the telescopic internal surface of two-way joint with clearance between the surface of sealing ring position sleeve is the holding ring groove, the retaining member including coaxial set up in holding ring in the holding ring groove, lock nut's medial extremity face coaxial coupling the holding ring.
Further, the pushing part is a sealing nut, the sealing nut comprises a nut cap with an internal thread, an axial pushing sleeve is coaxially connected to the end face of the inner side of the nut cap, one end of the first guide pipe or one end of the second guide pipe is coaxially inserted into the axial pushing sleeve, and the end face of the inner side of the axial pushing sleeve is coaxially attached to and pressed against the end face of the outer side of the elastic sleeve; the outer side end face of the locking nut is coaxially connected with a threaded sleeve with an external thread, and the threaded sleeve is in threaded connection with the inside of the nut cap.
Furthermore, the side part of the elastic sleeve is provided with an axial notch which is communicated with the inner shaft hole of the elastic sleeve and is arranged along the length direction of the elastic sleeve.
The invention has the beneficial effects that: through coaxial extrusion elastic sleeve and sealing ring, make the sealing ring press from both sides tight pipe, be connected through sealed locking device between with pipe again, effectively guaranteed the sealing connection between the pipe, satisfied the leak protection requirement, guaranteed the leakproofness of the liquid and the gas transport of certain pressure, guaranteed the connection stability between the pipe in the use.
Drawings
FIG. 1 is a perspective view of a catheter-to-catheter seal-locked connection of the present invention;
FIG. 2 is a front view of the catheter-to-catheter seal-locked connection of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a perspective view of a bi-directional joint of the present invention;
FIG. 5 is a front view of the bi-directional joint of the present invention;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;
FIG. 7 is a perspective view of the retaining member of the present invention;
FIG. 8 is a front view of the retaining member of the present invention;
FIG. 9 is a cross-sectional view taken at C-C of FIG. 8;
FIG. 10 is a perspective view of the urging member of the present invention;
FIG. 11 is a front view of the urging member of the present invention;
FIG. 12 is a cross-sectional view taken along line D-D of FIG. 11;
FIG. 13 is a perspective view of the seal ring of the present invention;
FIG. 14 is a perspective view of the elastic sleeve of the present invention;
the device comprises a first guide pipe 1, a second guide pipe 2, a bidirectional joint 3, a sealing ring 4, an elastic sleeve 5, a limiting ring surface 6, a bidirectional joint sleeve 7, a limiting ring 8, a pushing piece 9, a locking piece 10, a sealing ring positioning sleeve 11, a circular arc-shaped plate 12, a locking nut 13, a positioning ring groove 14, a positioning ring 15, a nut cap 16, an axial pushing sleeve 17, a threaded sleeve 18 and an axial gap 19.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
The connecting structure for sealing and locking the guide pipes as shown in fig. 1 to 14 comprises two guide pipes, wherein the two guide pipes are a first guide pipe 1 and a second guide pipe 2 respectively, and the first guide pipe 1 and the second guide pipe 2 are coaxially fixed through a sealing and locking device.
The sealing and locking device comprises a two-way joint 3, a group of abutting and pushing sealing elements are respectively arranged inside the left side and the right side of the two-way joint 3, each group of abutting and pushing sealing elements respectively comprises a sealing ring 4 and an elastic sleeve 5 which are coaxially arranged in the two-way joint 3, a limiting ring 8 is coaxially fixed in the middle of the two-way joint 3, the ring surfaces of the left side and the right side of the limiting ring 8 are coaxially attached to the inner end surface of the sealing ring 4, the outer end surface of the sealing ring 4 is coaxially attached to the inner end surface of the elastic sleeve 5, one end of a first conduit 1 and one end of a second conduit 2 are respectively coaxially inserted into the sealing rings 4 of the two groups of abutting and pushing sealing elements, the joint of the first, the left side and the right side of the bidirectional joint 3 are respectively fixed with a pushing locking connecting piece which is used for coaxially pushing the end face of the other end of the elastic sleeve 5 so as to enable the inner hole of the sealing ring 4 to shrink and clamp the first guide pipe 1 and the second guide pipe 2.
Two-way joint 3 includes two-way joint sleeve 7, fixedly connected with and its coaxial spacing ring 8 on the middle part internal surface of two-way joint sleeve 7, and the right and left sides anchor ring of spacing ring 8 is installation sleeve of coaxial fixedly connected with respectively, and sealing ring 4 and elastic sleeve 5 are all coaxial to be set up in the installation sleeve, and the anchor ring that is located spacing ring 8 in the installation sleeve is spacing anchor ring 6. The installation sleeve of the left and right sides of two-way joint 3 is fixed with one respectively and supports and pushes away the locking connecting piece coaxially: the device comprises a pushing piece 9 and a locking piece 10, wherein the pushing piece 9 is used for coaxially pushing the end face of the other end of the elastic sleeve 5 and enabling an inner hole of the sealing ring 4 to contract and clamp the first guide pipe 1 or the second guide pipe 2, and the locking piece 10 is used for coaxially fixing the mounting sleeve and the pushing piece 9. The installation sleeve includes that coaxial coupling connects sealing ring position sleeve 11 on the terminal surface of spacing ring 8 and interval connect the polylith circular arc shaped plate 12 on the outside circumference terminal surface of sealing ring position sleeve 11, and the surface of circular arc shaped plate 12 is equipped with the external screw thread, retaining member 10 include with polylith circular arc shaped plate 12 threaded connection's lock nut 13. The clearance between the inner surface of the bidirectional joint sleeve 7 and the outer surface of the sealing ring positioning sleeve 11 is a positioning ring groove 14, the locking member 10 comprises a positioning ring 15 coaxially arranged in the positioning ring groove 14, and one side end face of the locking nut 13 is coaxially connected with the positioning ring 15.
The pushing part 9 is a sealing nut: the device comprises a nut cap 16 with internal threads and a shaft hole, wherein an axial pushing sleeve 17 is coaxially connected to the end face of the inner side of the nut cap 16, one end of a first guide pipe 1 and one end of a second guide pipe 2 are coaxially inserted into the axial pushing sleeve 17, and the end face of the inner side of the axial pushing sleeve 17 is coaxially attached and compressed with the end face of the outer side of an elastic sleeve 5; a threaded sleeve 18 with external threads is coaxially connected to the other end face of the lock nut 13, and the threaded sleeve 18 is screwed into the nut cap 16.
In the invention, when only sealing or slight clamping operation is needed to be carried out on the conduit 1, the conduit 1 can be plugged into the central holes of the sealing ring 2 and the elastic sleeve 3, the locking nut 13 is pinched by one hand, and the sealing nut is screwed by the other hand. When the guide pipe 1 needs to be firmly and reliably locked, the locking nut 13 is firstly screwed preliminarily, then the sealing nut is screwed to compress the sealing ring 2, and then the locking nut 13 is screwed to fix the position of the guide pipe 1. The locking nut 13 can be directly screwed to fix the position of the catheter 1 in the case that sealing is not required. The plurality of guide pipes 1 can be hermetically connected into a whole to realize the sealed transportation of gas or liquid.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (7)
1. A connecting structure for sealing and locking a conduit and a conduit comprises at least two conduits, and is characterized in that: the two guide pipes are respectively a first guide pipe (1) and a second guide pipe (2), the first guide pipe (1) and the second guide pipe (2) are coaxially fixed through a sealing locking device, the sealing locking device comprises a two-way joint (3), a shaft hole is formed in the two-way joint (3), a limiting ring (8) is coaxially fixed in the middle of the shaft hole, a group of abutting and pushing sealing pieces are respectively arranged on the left side and the right side of the limiting ring (8), each group of abutting and pushing sealing pieces respectively comprises a sealing ring (4) and an elastic sleeve (5) which are coaxially arranged in the shaft hole of the two-way joint (3), the ring faces of the left side and the right side of the limiting ring (8) are respectively attached to the inner side faces of the sealing rings (4), the outer side end faces of the sealing rings (4) are respectively attached to the inner side faces of the elastic sleeves (5), one end of the first guide pipe (1) and one end of the second guide pipe (2) are respectively coaxially inserted The joint of the first conduit (1) and the second conduit (2) is positioned in an annular hole of the limiting ring (8), and the left side and the right side of the bidirectional joint (3) are respectively and fixedly provided with a pushing locking connecting piece which is used for coaxially pushing the outer side end face of the elastic sleeve (5) and enabling an inner hole of the sealing ring (4) to contract and clamp the first conduit (1) and the second conduit (2).
2. The conduit-to-conduit seal-locked connection of claim 1, wherein: two-way joint (3) are including two-way joint sleeve (7), fixedly connected with on the middle part internal surface of two-way joint sleeve (7) spacing ring (8), install sleeve of coaxial fixedly connected with respectively on the left and right sides anchor ring of spacing ring (8), sealing ring (4) with elastic sleeve (5) all coaxial set up in the installation sleeve, the installation sleeve of the left and right sides of two-way joint (3) is coaxial fixed with one respectively support and push away locking connecting piece.
3. The conduit-to-conduit seal-locked connection of claim 2, wherein: the pushing and locking connecting piece comprises a pushing piece (9) and a locking piece (10), wherein the pushing piece (9) is used for coaxially pushing the outer end face of the elastic sleeve (5) in a pushing mode, so that an inner hole of the sealing ring (4) is contracted to clamp the first guide pipe (1) or the second guide pipe (2), and the locking piece is used for coaxially fixing the mounting sleeve and the pushing piece (9).
4. The conduit-to-conduit seal-locked connection of claim 3, wherein: the installation sleeve includes coaxial coupling in sealing ring position sleeve (11) and the interval on the anchor ring of spacing ring (8) connect in polylith circular arc board (12) on the outside circumference terminal surface of sealing ring position sleeve (11), the surface of circular arc board (12) is equipped with the external screw thread, retaining member (10) include with the polylith circular arc board (12) threaded connection's lock nut (13).
5. The conduit-to-conduit seal-locked connection of claim 4, wherein: the internal surface of two-way joint sleeve (7) with clearance between the surface of sealing ring position sleeve (11) is holding ring groove (14), retaining member (10) including coaxial set up in holding ring (15) in holding ring groove (14), the medial extremity face coaxial coupling of lock nut (13) holding ring (15).
6. The conduit-to-conduit seal-locked connection of claim 5, wherein: the pushing part (9) is a sealing nut, the sealing nut comprises a nut cap (16) with an internal thread, an axial pushing sleeve (17) is coaxially connected to the end face of the inner side of the nut cap (16), one end of the first guide pipe (1) or one end of the second guide pipe (2) is coaxially inserted into the axial pushing sleeve (17), and the end face of the inner side of the axial pushing sleeve (17) is coaxially attached to and pressed against the end face of the outer side of the elastic sleeve (5); the outer side end face of the locking nut (13) is coaxially connected with a threaded sleeve (18) with an external thread, and the threaded sleeve (18) is connected in the nut cap (16) in a threaded mode.
7. The conduit-to-conduit seal-locked connection of claim 1, wherein: the side part of the elastic sleeve (5) is provided with an axial gap (19) which is communicated with the inner shaft hole of the elastic sleeve (5) and is arranged along the length direction of the elastic sleeve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011613646.9A CN112657049A (en) | 2020-12-30 | 2020-12-30 | Connecting structure for sealing and locking guide pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011613646.9A CN112657049A (en) | 2020-12-30 | 2020-12-30 | Connecting structure for sealing and locking guide pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112657049A true CN112657049A (en) | 2021-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011613646.9A Pending CN112657049A (en) | 2020-12-30 | 2020-12-30 | Connecting structure for sealing and locking guide pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112657049A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114159673A (en) * | 2021-12-08 | 2022-03-11 | 上海神玑医疗科技有限公司 | Vessel catheter intervention device |
| US11596781B2 (en) | 2021-03-22 | 2023-03-07 | The Regents Of The University Of California | Lamprey lock device |
-
2020
- 2020-12-30 CN CN202011613646.9A patent/CN112657049A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11596781B2 (en) | 2021-03-22 | 2023-03-07 | The Regents Of The University Of California | Lamprey lock device |
| CN114159673A (en) * | 2021-12-08 | 2022-03-11 | 上海神玑医疗科技有限公司 | Vessel catheter intervention device |
| CN114159673B (en) * | 2021-12-08 | 2023-11-07 | 上海神玑医疗科技有限公司 | Vascular catheter interventional device |
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