CN115031074B - Flexible connector, flexible connecting structure of catheter and flexible connecting method of catheter - Google Patents
Flexible connector, flexible connecting structure of catheter and flexible connecting method of catheter Download PDFInfo
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- CN115031074B CN115031074B CN202210661828.6A CN202210661828A CN115031074B CN 115031074 B CN115031074 B CN 115031074B CN 202210661828 A CN202210661828 A CN 202210661828A CN 115031074 B CN115031074 B CN 115031074B
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- flexible
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 119
- 238000009434 installation Methods 0.000 claims description 26
- 210000001503 joint Anatomy 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 description 7
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
- F16L27/06—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces with special sealing means between the engaging surfaces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention relates to the technical field of pipe connectors, in particular to a flexible connector, a pipe flexible connecting structure with the flexible connector and a pipe flexible connecting method for connecting pipes by adopting the pipe flexible connecting structure. The invention discloses a flexible connector, which comprises a sleeve, a short connecting pipe with one end being a spherical connector and a flexible connecting component, wherein the short connecting pipe is arranged on the sleeve through the flexible connecting component; the flexible connecting assembly comprises a spherical sealing ring, a first spring, a first baffle ring, a second spring, a second baffle ring, an inclined surface sealing ring and a mounting seat. The flexible connector connecting conduit provided by the invention can adjust the mounting position of the end part of the conduit to perform axial distance compensation, can adapt to the mounting angle of the conduit to perform angle compensation, and can eliminate the mounting stress.
Description
Technical Field
The invention relates to the technical field of pipe connectors, in particular to a flexible connector, a pipe flexible connecting structure with the flexible connector and a pipe flexible connecting method for connecting pipes by adopting the pipe flexible connecting structure.
Background
The traditional connector adopts standard quick-release clamp to carry out hard connection to the pipe, can not realize flexible connection, can not compensate the angle difference and the axial distance between connecting pipes, also can not eliminate installation stress simultaneously, and is high to the pipeline precision requirement that needs the installation.
"patent (application) number: 202110571345.2; the invention creates the name: chinese invention patent of flexible connection means "discloses a flexible connection means comprising: the rigid connecting part is fixedly connected with the first connecting port; the flexible rotary connecting part is used for connecting the second connecting port in a way of rotating a preset angle relative to the axis of the second connecting port; and the telescopic pipe assembly is connected with the rigid connecting part and the flexible rotating connecting part and is used for adjusting the distance between the rigid connecting part and the flexible rotating connecting part. In the technical scheme, a space for telescopic adjustment is reserved between the flexible rotary connecting part and the rigid connecting part, the whole length is longer, the sealing structure is complex, and the installation stress cannot be eliminated.
Disclosure of Invention
The invention aims to break through the barriers of the prior art and provide a set of catheter flexible connection technology which is different from the prior art, and the catheter flexible connection technology comprises a flexible connector, a catheter flexible connection structure with the flexible connector and a catheter flexible connection method for connecting catheters by adopting the catheter flexible connection structure. The flexible connector connecting catheter can adjust the installation position of the end part of the catheter to perform axial distance compensation, can adapt to the installation angle of the catheter to perform angle compensation, and can also eliminate the installation stress.
The invention provides a flexible connector, which comprises a sleeve, a short connecting pipe with one end being a spherical connector and a flexible connecting component, wherein the short connecting pipe is arranged on the sleeve through the flexible connecting component; the flexible connecting assembly comprises a spherical sealing ring, a first spring, a first baffle ring, a second spring, a second baffle ring, an inclined surface sealing ring and a mounting seat.
The spherical sealing ring is positioned between the spherical connector and the mounting seat, and the spherical sealing ring and the mounting seat jointly form a spherical connecting part for accommodating the spherical connector; the spherical connector of the short connecting pipe is hinged to the spherical connecting part and is used for compensating the installation angle; meanwhile, the first baffle ring is mounted at the end part of the mounting seat in a limiting mode, and the first baffle ring after limiting mounting presses the spherical sealing ring through the first spring, so that the spherical sealing ring used for sealing is filled between the spherical connector of the short connecting pipe and the axial guiding part in A of the mounting seat.
The inclined surface sealing ring is positioned between the mounting seat and the sleeve, and the inclined surface sealing ring and the sleeve form a seat body connecting part for accommodating the mounting seat together; the mounting seat is arranged at the seat body connecting part and is used for compensating the axial mounting position; meanwhile, the second baffle ring is mounted at the end part of the sleeve in a limiting mode, and the second baffle ring subjected to limiting mounting presses the inclined surface sealing ring through the second spring, so that the inclined surface sealing ring used for sealing is filled between the A outer axial guiding part of the mounting seat and the B inner axial guiding part of the sleeve.
The sleeve in the flexible connector is usually a sleeve structure with two ends, and the two ends of the sleeve can be of the same structure or of different structures. When the sleeve adopts a structural design that two ends are used for installing flexible connecting components, two groups of flexible connecting components are respectively installed at two ends of the sleeve; at the moment, the flexible connector is used as an intermediate connector, and is suitable for the working condition requirement that two conduits are connected through one flexible connector. When the sleeve is of a structural design with only one end for mounting the flexible connection units, one set of flexible connection units is mounted on one end of the sleeve, while the other end of the sleeve is typically used for connection with a joint or end cap of another structure; the flexible connector then acts as an end connector.
Of course, the sleeve in the flexible connector may be designed into an N-head structure, where N is a positive integer greater than 2, and only one of the N heads of the sleeve is designed to be flexibly connected with the short connecting pipe through the flexible connecting component.
Further, in order to better realize the invention, the first spring is a wave spring or a belleville spring; the second spring is a wave spring or a disc spring.
Further, in order to better realize the invention, a push plate for repairing is arranged between the second baffle ring and the spherical sealing ring; the second spring is indirectly connected with the inclined surface sealing ring through the push plate and transmits acting force.
Further, in order to better realize the invention, the mounting seat and the first baffle ring are in limit connection through the arrangement of the spiral locking groove and the pin which can be screwed into the spiral locking groove; the sleeve and the second baffle ring are also in limit connection through a spiral locking groove and a pin which can be screwed into the spiral locking groove.
Further, the tail end of the spiral locking groove is also provided with a locking notch.
Second, based on the flexible connector, the invention provides a flexible connecting structure of a catheter. The catheter flexible connection structure comprises a catheter and a flexible connector arranged at the end part of the catheter.
The catheter flexible connection structure can be a single-tube connection structure or a multi-tube connection structure. When the catheter flexible connection structure is a single tube connection structure, one flexible connector is connected with only one catheter. When the catheter flexible connection structure is a multitube connection structure, one flexible connector is connected with a plurality of catheters simultaneously.
Thirdly, based on the flexible connecting structure of the catheter, a flexible connecting method of the catheter is provided. The catheter flexible connection method adopts the catheter flexible connection structure to connect the catheters.
The beneficial effects of the invention are as follows:
(1) The flexible connector provided by the invention adopts a structure different from the prior art, and can also supplement the angle difference and the axial distance when the catheter is connected;
(2) According to the flexible connector provided by the invention, the sleeved sleeve and the mounting seat are connected into a whole through the two groups of baffle ring-spring-sealing ring assemblies, the baffle ring which is arranged in a limiting mode presses the sealing ring through the spring to realize flexible sealing, and the flexible connection assembly can eliminate the mounting stress due to the characteristics of the spring, so that the influence on the sealing performance of the pipeline connection part in an oscillation use environment can be reduced;
(3) The structure of the flexible connector provided by the invention determines that the axial dimension of the flexible connector can be designed to be relatively short, and the flexible connector is suitable for application environments with relatively compact connecting space;
(4) The structure and the method for connecting the guide pipe based on the flexible connector disclosed by the application can eliminate the installation stress in the installation process and are simple to operate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of an exemplary structure of a flexible connector according to the present invention.
Fig. 2 is a schematic exploded view of the flexible connector of fig. 1 in semi-section.
Fig. 3 is a schematic view of an exemplary flexible connection structure of the present invention.
Fig. 4 is a schematic view of a semi-sectional structure of a sleeve.
FIG. 5 is a schematic view of a semi-sectional structure of a mating structure of a mounting seat and a bevel seal ring.
Fig. 6 is a schematic view of the structure of the anti-loose notch.
FIG. 7 is a schematic view of a semi-sectional structure of a spherical seal ring.
Fig. 8 is a schematic view of another exemplary structure of the flexible connector of the present invention.
Wherein:
1. a short connecting pipe; 101. a spherical joint;
2. a mounting base; 201. a first helical locking groove; 202. a, an anti-loose notch; 203. an inner spherical surface A; 204. an outer axial guide part A; 205. an axial guide part in A;
3. a sleeve; 301. a second helical locking groove; 302. b anti-loose notch; 303. an inner axial guide part in the B direction; 304. an inward-shrinking opening guide part;
4. a first baffle ring;
5. a first spring;
6. a first gasket;
7. a spherical sealing ring; 701. c, an inner spherical surface; 702. c, an outer sealing surface;
8. a second baffle ring;
9. a second spring;
10. a second gasket;
11. a push plate;
12. a bevel seal ring; 121. d, an inner sealing surface; 122. an outer sealing surface D;
13. a first pin;
14. a second pin;
15. a split clamping plate;
16. a quick release clamp;
17. a joint seal ring;
18. a conduit joint.
Detailed Description
The foregoing and other aspects of the invention will be further elucidated in conjunction with the detailed description of the examples. It should not be understood that the scope of the above subject matter of the present invention is limited to the following examples only. Various substitutions and alterations are also possible, without departing from the spirit of the invention, and are intended to be within the scope of the invention.
The terms "first," "second," and the like in the embodiments are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance. In addition, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and the like should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1:
the embodiment provides a flexible connector, as shown in fig. 1, 2 and 3, which comprises a sleeve 3, a short connecting pipe 1 with one end being a spherical joint 101 and a flexible connecting component, wherein the short connecting pipe 1 is arranged on the sleeve 3 through the flexible connecting component; the flexible connection assembly comprises a spherical sealing ring 7, a first spring 5, a first baffle ring 4, a second spring 9, a second baffle ring 8, an inclined sealing ring 12 and a mounting seat 2.
As shown in fig. 1 and 3, the spherical sealing ring 7 is located between the spherical connector 101 and the mounting seat 2, and the spherical sealing ring 7 and the mounting seat 2 together form a spherical connecting part for accommodating the spherical connector 101; the spherical connector 101 of the short connecting pipe 1 is hinged to the spherical connecting part and is used for compensating the installation angle; meanwhile, the first baffle ring 4 is mounted at the end part of the mounting seat 2 in a limiting manner, and the first baffle ring 4 subjected to limiting mounting presses the spherical sealing ring 7 through the first spring 5, so that the spherical sealing ring 7 for sealing is filled between the spherical connector 101 of the short connecting pipe 1 and the axial guiding part 205 in A of the mounting seat 2.
The inclined surface sealing ring 12 is positioned between the mounting seat 2 and the sleeve 3, and the inclined surface sealing ring 12 and the sleeve 3 form a seat body connecting part for accommodating the mounting seat 2 together; the mounting seat 2 is arranged at the seat body connecting part and is used for compensating the axial mounting position; meanwhile, the second baffle ring 8 is mounted at the end part of the sleeve 3 in a limiting manner, and the second baffle ring 8 subjected to limiting mounting presses the inclined surface sealing ring 12 through the second spring 9, so that the inclined surface sealing ring 12 for sealing is filled between the outer axial guide part 204 of the mounting seat 2 and the inner axial guide part 303 of the sleeve 3.
The flexible connector disclosed in this embodiment includes a sleeve 3, a short connection pipe 1 with one end being a spherical connector 101, a spherical sealing ring 7, a first spring 5, a first baffle ring 4, a second spring 9, a second baffle ring 8, an inclined sealing ring 12 and a mounting seat 2, where the first spring 5, the first baffle ring 4, the second spring 9, the second baffle ring 8, the inclined sealing ring 12 and the mounting seat 2 together form a flexible connection assembly. The spherical sealing ring 7 and the inclined surface sealing ring 12 are used for sealing a medium, and angle compensation and axial distance compensation can be provided during the installation of the catheter, so that the installation and the disassembly of the pipeline are convenient, and the pipeline installation stress is eliminated. The flexible connector can be used to effect a compensating connection installation of various aircraft fuel systems or air system conduits.
In this embodiment, the front end of the mounting seat 2 is used for limiting and mounting the first baffle ring 4, and the rear end of the mounting seat 2 is used for sleeving the spherical connector 101 to limit and mount the short connecting pipe 1. The mounting base 2 and the spherical sealing ring 7 together form a spherical connection for receiving the spherical connector 101. During installation, the installation seat 2 and the spherical sealing ring 7 are sleeved on the spherical connector 101 from the two ends of the short connecting pipe 1 in a tandem mode, the first spring 5 is placed in the installation seat, the first baffle ring 4 is installed, the first baffle ring 4 compresses the first spring 5 to apply pressure to the spherical sealing ring 7 due to the limiting installation structure of the first baffle ring 4 and the installation seat 2, the spherical sealing ring 7 is filled between the spherical connector 101 of the short connecting pipe 1 and the A-axis guide part 205 of the installation seat 2, hinged sealing of the spherical connector 101 and the installation seat 2 is achieved, and the spherical sealing device can be used for large-angle compensation by utilizing the principle of spherical twisting.
In this embodiment, the end portion of the sleeve 3 for mounting the connector of the flexible connection assembly is used for limiting and mounting the second baffle ring 8. The sleeve 3 and the bevel sealing ring 12 together form a seat body connection for accommodating the mounting seat 2. After the length of the mounting seat 2 extending into the connector of the sleeve 3 is adjusted, the inclined sealing ring 12 and the second spring 9 are sequentially placed into the mounting seat, and the second baffle ring 8 is installed again, and because of the limiting mounting structure of the second baffle ring 8 and the sleeve 3, the second baffle ring 8 compresses the second spring 9 to apply pressure to the inclined sealing ring 12, so that the inclined sealing ring 12 is filled between the outer axial guiding part 204 of the mounting seat 2 and the inner axial guiding part 303 of the sleeve 3, the shaft connection sealing of the mounting seat 2 and the sleeve 3 is realized, and the mounting seat can be used for axial distance compensation.
It should be noted that, the rotation of the ball joint 101 in the mounting seat 2 can adjust the angle between the axial direction of the short connecting pipe 1 and the axial direction of the mounting seat 2, but the distance between the rotation center of the ball joint 101 and the end of the mounting seat 2 is almost unchanged. The mounting seat 2 drives the short connecting pipe 1 to move together, and when the depth of the mounting seat 2 extending into the end part of the sleeve 3 changes, the axial position of the rotation center of the short connecting pipe 1 relative to the sleeve 3 changes, namely the axial mounting position of the short connecting pipe 1 changes. That is, when the depth of the mount 2 extending into the sleeve 3 becomes large, the axial mounting position of the short connecting pipe 1 is closer to the center of the sleeve 3, and the axial distance becomes short; when the depth of the mounting seat 2 extending into the sleeve 3 becomes smaller, the axial mounting position of the short connecting pipe 1 is farther from the center of the sleeve 3, and the axial distance becomes longer.
Further, since the beveled sealing ring 12 also secures the mount 2 when tightly packed between the mount 2 and the sleeve 3, the a outer axial guide 204 of the mount 2 may or may not abut against the B inner axial guide 303 of the sleeve 3. Of course, the dimension of the outer axial guiding portion 204 of the mounting seat 2 is generally designed to be the same as the dimension of the inner axial guiding portion 303 of the sleeve 3, and in consideration of the existence of machining errors, the outer axial guiding portion 204 of the mounting seat 2 and the inner axial guiding portion 303 of the sleeve 3 are generally in a small clearance fit relationship or a small interference fit relationship with similar dimensions in actual products. If the connection part of the mounting seat 2 and the sleeve 3 is in small clearance fit, better guidance is provided when the mounting seat 2 is adjusted to extend into the depth of the sleeve 3, the adjustment operation is smooth, but the tightly pressed inclined surface sealing ring 12 is required to have stronger fastening force on the mounting seat 2 and cannot move at will. If the connection between the mounting seat 2 and the sleeve 3 is in small interference fit, a large acting force needs to be applied when the depth of the mounting seat 2 extending into the sleeve 3 is adjusted, but the friction force between the mounting seat 2 and the sleeve 3 can be avoided to move randomly after the position is confirmed. Therefore, the dimensional relationship between the outer axial guide portion 204 a of the mount 2 and the inner axial guide portion 303B of the sleeve 3 is designed according to the actual requirements.
Furthermore, in this embodiment, the first baffle ring 4, the first spring 5 and the spherical sealing ring 7 together form a group of baffle ring-spring-sealing ring assemblies, so that the short connecting pipe 1 and the mounting seat 2 are flexibly and hermetically connected into a whole; meanwhile, in this embodiment, the second baffle ring 8, the second spring 9 and the inclined seal ring 12 together form another group of baffle ring-spring-seal ring assemblies, so that the mounting seat 2 and the sleeve 3 are flexibly and hermetically connected into a whole. Therefore, the embodiment realizes the compensation of the connection angle and the compensation of the connection length while ensuring the tightness through the two groups of baffle ring-spring-sealing ring assemblies.
The flexible connector provided by the embodiment adopts the spherical hinge connection structure to realize angle adjustment and adopts the sleeve joint structure to realize axial distance adjustment, and meanwhile, the short connecting pipe 1, the mounting seat 2 and the sleeve 3 are connected by the baffle ring-spring-sealing ring assembly, so that the sealing of a channel is realized, the problem of mounting stress is solved, and the sealing connection can be maintained under the use environment of oscillation.
Example 2:
the embodiment optimizes the structure of the flexible connector based on embodiment 1, and provides a specific structure of a limit mounting baffle ring: pin-screw locking groove structure.
The spiral locking groove structure for limit installation of the baffle ring is shown in fig. 4 and 5. Further, the end of the spiral locking groove is also provided with a locking notch, as shown in fig. 6.
When the baffle ring is installed in a limiting mode, pins are installed on the outer peripheral face of the baffle ring, then the pins are aligned to the head end position of the opening of the spiral locking groove, then the baffle ring is rotated to enable the pins to be screwed in along the groove shape of the spiral locking groove, in the process that the pins are close to the tail end position of the spiral locking groove, the springs apply acting force to the baffle ring due to compression, and when the pins walk to the tail end of the spiral locking groove, the acting force applied by the springs pushes the anti-loosening notch. The retaining ring is fixed and prevented from loosening.
Specifically, a first spiral locking groove 201 is formed in the mounting seat 2, and a first pin 13 is mounted on the first baffle ring 4; the first pin 13 on the first baffle ring 4 is screwed into the first spiral locking groove 201 of the mounting seat 2, so as to limit the first baffle ring 4 to be mounted on the mounting seat 2. The mounting seat 2 is in limit connection with the first baffle ring 4 through a first spiral locking groove 201 and a first pin 13 which can be screwed into the first spiral locking groove 201.
Specifically, a second spiral locking groove 301 is arranged on the sleeve 3, and a second pin 14 is arranged on the second baffle ring 8; the second pin 14 on the second baffle ring 8 is screwed into the second spiral locking groove 301 of the sleeve 3, so as to limit the second baffle ring 8 to be mounted on the sleeve 3. The sleeve 3 is also in limiting connection with the second baffle ring 8 through a second spiral locking groove 301 and a second pin 14 which can be screwed into the second spiral locking groove 301.
Based on the above structure, as shown in fig. 4, the mounting base 2 is provided with a first screw locking groove 201, an a locking notch 202, an a inner spherical surface 203, an a outer axial guide portion 204, and an a inner axial guide portion 205. As shown in fig. 5, the sleeve 3 is provided with a second screw locking groove 301, a B locking notch 302, a B inner axial guide 303, and a female guide 304. The same structure as shown in fig. 6 may be adopted for the a locking notch 202 and the B locking notch 302, or different structures may be adopted. As shown in fig. 7, the inner ring of the spherical sealing ring 7 is a C inner spherical surface 701, and the outer ring is a C outer sealing surface 702. As shown in fig. 5, the inner ring of the bevel seal ring 12 is a D inner seal surface 121, and the outer ring is a D outer seal surface 122.
Therefore, after the flexible connector shown in fig. 1 is assembled, at one end of the flexible connection assembly, the first retaining ring 4 is mounted on the mounting seat 2 through the cooperation between the first pin 13 and the first spiral locking groove 201, the compressed first spring 5 compacts the spherical sealing ring 7, and simultaneously pulls the mounting seat 2 reversely, firstly, the first pin 13 moves into the position of the a locking notch 202, and secondly, the mounting seat 2 and the spherical sealing ring 7 simultaneously hold the spherical connector 101 of the short connecting pipe 1. At this time, the inner spherical surface a 203 of the mount 2 and the inner spherical surface C701 of the spherical seal ring 7 are both in contact with the spherical joint 101, while the outer spherical surface C702 of the spherical seal ring 7 is in contact with the inner axial portion a 205 of the mount 2. At the other end of the flexible connection assembly, the second baffle ring 8 is mounted on the sleeve 3 in a limit manner through the cooperation of the second pin 14 and the second spiral locking groove 301, the inclined sealing ring 12 is compacted by the compressed second spring 9, and meanwhile the second pin 14 moves into the position of the B locking notch 302 due to the acting force of the second spring 9. At this time, the D inner seal surface 121 of the bevel seal ring 12 is in contact with the a outer axial guide portion 204 of the mount 2, and the D outer seal surface 122 of the bevel seal ring 12 is in contact with the inner contraction guide portion 304 of the sleeve 3.
It should be noted that, the pin-spiral locking groove structure provided in this embodiment belongs to a specific protrusion-recess matching structure, and if other protrusion-recess matching structures are adopted to realize limit installation of the baffle ring, the structure is as follows: the bump-concave point structure, the threaded connection structure, the telescopic pin shaft-groove structure and the like which are matched with each other belong to the limit installation structure described in the scheme. Furthermore, the limit mounting structure of the first retainer ring 4 may be the same as or different from the limit mounting structure of the second retainer ring 8.
Other portions of the present embodiment are the same as those of the above embodiment, and thus will not be described again.
Example 3:
in this embodiment, on the basis of embodiment 1, the structure of the flexible connector is optimized, and a push plate 11 is additionally arranged between the second spring 9 and the inclined surface sealing ring 12. As shown in fig. 1, the bevel seal ring 12 is located at an axial guiding part 303 in the B of the sleeve 3, the second spring 9 is connected with the bevel seal ring 12 through the push plate 11, and the second spring 9 transmits acting force to the bevel seal ring 12 through the push plate 11.
When the axial distance between the second baffle ring 8 and the inclined surface sealing ring 12 is larger, the length of the second spring 9 is longer, or the length of the inclined surface sealing ring 12 is longer, so that the processing difficulty of the spring or the sealing ring is increased. Therefore, in this embodiment, the design of adding the push plate 11 between the spring and the seal ring is adopted, so as to skillfully solve the problem that the axial distance between the second baffle ring 8 and the inclined seal ring 12 is larger.
Other portions of the present embodiment are the same as those of the above embodiment, and thus will not be described again.
Example 4:
in this embodiment, on the basis of embodiment 1, the structure of the flexible connector is optimized, and a gasket is additionally arranged between the baffle ring and the seal ring. The spring is in contact with the baffle ring and/or the sealing ring usually in point contact or line contact, the force application position is concentrated, local damage is easy to occur to the surface of the part, and if the gasket is additionally arranged, the spring force can be uniformly dispersed through the gasket and then applied to the end face of the baffle ring and/or the sealing ring, so that the acting force is more uniform. Therefore, the gasket is added mainly for two purposes: firstly, compensating the distance between the baffle ring and the end face of the sealing ring; secondly, the acting force applied to the baffle ring and the sealing ring is more uniform.
Specifically, a first gasket 6 is further arranged between the first baffle ring 4 and the spherical sealing ring 7;
a first gasket 6 is arranged between the first baffle ring 4 and the first spring 5 and between the first spring 5 and the spherical sealing ring 7;
alternatively, only the first spacer 6 is provided between the first retainer ring 4 and the first spring 5;
alternatively, only the first washer 6 is provided between the first spring 5 and the spherical sealing ring 7.
Specifically, a second gasket 10 is further disposed between the second baffle ring 8 and the bevel seal ring 12;
a second gasket 10 is arranged between the second baffle ring 8 and the second spring 9 and between the second spring 9 and the inclined surface sealing ring 12;
alternatively, only the second spacer 10 is provided between the second retainer ring 8 and the second spring 9;
alternatively, only the second washer 10 is provided between the second spring 9 and the bevel seal ring 12.
Although only one shim arrangement is illustrated in fig. 1 and 3, this is not the only shim design. That is, the arrangement of the spacer at one or both ends of the spring is a solution covered in this embodiment, and may be selected according to practical situations.
Further, the number of the gaskets arranged at one end of the spring may be one or more, which belongs to the scheme covered in the embodiment, and may be selected according to practical situations.
Still further, in another embodiment, the springs may be wave springs or belleville springs. The springs arranged at different positions may be of different types.
Other portions of the present embodiment are the same as those of the above embodiment, and thus will not be described again.
Example 5:
the present embodiment provides a catheter flexible connection structure on the basis of any one of embodiment 1 to embodiment 4, as shown in fig. 2, including a flexible connector, a split clamping plate 15, a quick release clip 16, a joint sealing ring 17 and a catheter joint 18; the short connecting pipe 1 of the flexible connector is in butt joint with the end part of the conduit joint 18, and a joint sealing ring 17 is arranged at the butt joint part of the end part; the split clamping plate 15 is arranged at the end part of the short connecting pipe 1 of the flexible connector; the quick release clamp 16 simultaneously locks and locks the split clamping plate 15 mounted on the short connecting pipe 1 and the connecting convex part of the conduit joint 18.
The flexible connector may be a multi-head connector with two heads, three heads, four heads, etc., and the technical scheme covered in this embodiment only needs to connect one of the heads with the catheter through the short connecting tube 1 installed in the flexible connecting assembly. One of the more typical connection structures is a flexible connector of double-ended construction, which serves as an intermediate connector for simultaneously connecting two conduits, as shown in fig. 1 and 3. The second of the more typical connection structures is a flexible connector of double-ended construction, in which one end is connected to the catheter by a nipple 1 mounted in the flexible connection unit and the other end is connected to other parts of the catheter than the specific structure described in the present embodiment, as shown in fig. 8. The third more typical connection structure is a three-head flexible connector, one of which is connected to the catheter through a short connecting tube 1 installed in the flexible connection assembly, and the other two heads are connected to other parts of the catheter not of the specific structure described in the present embodiment; for example: one of the three-way joints is changed into a left structure as shown in fig. 1 and 8, and other joint structures of the three-way joint are unchanged, and the structural changes belong to deformation schemes obtained by adaptively modifying design structures by those skilled in the art, so that the description of the drawings is omitted.
The catheter adapter 18 in this embodiment may be interpreted as a separate component for connecting the catheter, or may be interpreted as a connection end of the catheter, essentially the catheter itself, but merely a connection portion of the catheter itself.
Other portions of this embodiment are the same as any one of embodiments 1 to 4, and thus will not be described in detail.
Example 6:
the present embodiment provides a catheter flexible connection method based on any one of embodiment 1 to embodiment 5, wherein the flexible connector is assembled first, and then the flexible connector is butted with the catheter for sealing connection.
The method specifically comprises the following steps.
Step A: mounting the short connecting pipe 1 into the mounting seat 2;
specifically, the mounting seat 2 and the spherical sealing ring 7 are mounted from two ends of the short connecting pipe 1 and sleeved on the spherical connector 101; after the first spring 5 is placed, the first baffle ring 4 is installed, and in the limit installation process of the first baffle ring 4 and the installation seat 2, the first baffle ring 4 pushes the first spring 5 to apply pressure to the spherical sealing ring 7 to compress the spherical sealing ring 7 between the spherical connector 101 of the short connecting pipe 1 and the axial guide part 205 in the A axis of the installation seat 2. If the first spacer 6 is provided, the first spacer 6 is put together when the first spring 5 is put.
And (B) step (B): mounting the mount 2 into the sleeve 3;
specifically, the mounting seat 2 provided with the short connecting pipe 1 is placed in the seat body connecting part of the sleeve 3; the inclined surface sealing ring 12 and the second spring 9 are sequentially placed into the sleeve, the second baffle ring 8 is mounted, in the limit mounting process of the second baffle ring 8 and the sleeve 3, the second baffle ring 8 pushes the second spring 9 to apply pressure to the inclined surface sealing ring 12, so that the inclined surface sealing ring 12 is pressed between the outer axial guide part 204 of the mounting seat 2 and the inner axial guide part 303 of the sleeve 3. If the second spacer 10 is provided, the second spacer 10 is put together when the second spring 9 is put. If the push plate 11 is provided, the push plate 11 is put together when the second spring 9 is put.
Step C: the flexible connector is in butt joint with the catheter and then is in sealing connection;
specifically, the split clamping plate 15 is installed in a groove at the end part of the short connecting pipe 1, and the joint sealing ring 17 is installed on the pipe guide joint 18; adjusting the angle of the central axis of the short connecting pipe 1 relative to the central axis of the mounting seat 2 and the axial position of the rotation center of the short connecting pipe 1 relative to the sleeve 3, so that the end part of the short connecting pipe 1 is attached to the end part of the conduit joint 18; after the operation of adjusting the angle and/or the axial distance is completed, the split clamping plate 15 arranged on the short connecting pipe 1 and the connecting convex part of the pipe joint 18 are simultaneously buckled and locked by the quick-release clamp 16, so that a pipe is flexibly connected to one end of the flexible connector.
It should be noted that, the adjusting the angle and/or the axial distance means adjusting the connection schedule and/or the axial distance according to the requirement to compensate the connection angle and/or the axial distance existing in the original to-be-connected piece. The joint seal ring 17 may be mounted on the pipe at a timing before or after the adjustment of the angle and/or the axial distance.
Other portions of this embodiment are the same as any one of embodiments 1 to 5, and thus will not be described in detail.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The flexible connector comprises a sleeve (3), a short connecting pipe (1) with one end being a spherical connector (101) and a flexible connecting component, wherein the short connecting pipe (1) is arranged on the sleeve (3) through the flexible connecting component; the flexible connecting assembly is characterized by comprising a spherical sealing ring (7), a first spring (5), a first baffle ring (4), a second spring (9), a second baffle ring (8), an inclined sealing ring (12) and a mounting seat (2);
the spherical sealing ring (7) is positioned between the spherical connector (101) and the mounting seat (2), and the spherical sealing ring (7) and the mounting seat (2) form a spherical connecting part for accommodating the spherical connector (101); the spherical connector (101) of the short connecting pipe (1) is hinged to the spherical connecting part and is used for compensating the installation angle; meanwhile, the first baffle ring (4) is arranged at the end part of the mounting seat (2) in a limiting mode, the first baffle ring (4) after limiting and mounting presses the spherical sealing ring (7) through the first spring (5), and the spherical sealing ring (7) for sealing is filled between the spherical connector (101) of the short connecting pipe (1) and the axial guiding part (205) in the A of the mounting seat (2);
the inclined surface sealing ring (12) is positioned between the mounting seat (2) and the sleeve (3), and the inclined surface sealing ring (12) and the sleeve (3) form a seat body connecting part for accommodating the mounting seat (2) together; the mounting seat (2) is mounted on the seat body connecting part and is used for compensating the axial mounting position; meanwhile, the second baffle ring (8) is mounted at the end part of the sleeve (3) in a limiting mode, the second baffle ring (8) subjected to limiting mounting presses the inclined surface sealing ring (12) through the second spring (9), and the inclined surface sealing ring (12) for sealing is filled between the outer axial guide part (204) of the A outside of the mounting seat (2) and the inner axial guide part (303) of the B inside of the sleeve (3);
a first gasket (6) is further arranged between the first baffle ring (4) and the spherical sealing ring (7);
a first gasket (6) is arranged between the first baffle ring (4) and the first spring (5) and between the first spring (5) and the spherical sealing ring (7);
or, the first gasket (6) is arranged between the first baffle ring (4) and the first spring (5);
or, the first gasket (6) is arranged between the first spring (5) and the spherical sealing ring (7) only.
2. A flexible connector according to claim 1, characterized in that a second gasket (10) is further arranged between the second stop ring (8) and the bevel seal ring (12);
a second gasket (10) is arranged between the second baffle ring (8) and the second spring (9) and between the second spring (9) and the inclined surface sealing ring (12);
or, only the second gasket (10) is arranged between the second baffle ring (8) and the second spring (9);
or, the second gasket (10) is arranged between the second spring (9) and the bevel sealing ring (12).
3. A flexible connector according to claim 1, characterized in that a push plate (11) for filling is also arranged between the second stop ring (8) and the spherical sealing ring (7); the second spring (9) is indirectly connected with the inclined surface sealing ring (12) through the push plate (11) to transmit acting force.
4. A flexible connector according to any one of claims 1-3, characterized in that the first spring (5) is a wave spring or a belleville spring; the second spring (9) is a wave spring or a disc spring.
5. A flexible connector according to any one of claims 1-3, characterized in that the mounting seat (2) is in a limited connection with the first retaining ring (4) by means of a screw locking groove and a pin which can be screwed into the screw locking groove; the sleeve (3) and the second baffle ring (8) are also in limit connection through a spiral locking groove and a pin which can be screwed into the spiral locking groove.
6. The flexible connector of claim 5, wherein the end of the helical locking groove is further provided with a locking notch.
7. A catheter flexible connection structure, characterized by comprising a flexible connector according to any one of claims 1-6, a split clamping plate (15), a quick release clamp (16), a joint sealing ring (17) and a catheter joint (18); the short connecting pipe (1) of the flexible connector is in butt joint with the end part of the conduit joint (18), and a joint sealing ring (17) is arranged at the butt joint part of the end part; the split clamping plate (15) is arranged at the end part of the short connecting pipe (1) of the flexible connector; the quick-release clamp (16) is used for simultaneously buckling and locking a split clamping plate (15) arranged on the short connecting pipe (1) and a connecting convex part of the conduit joint (18).
8. A catheter flexible connection method, wherein the catheter is connected by the catheter flexible connection structure according to claim 7.
9. The method of claim 8, wherein the flexible connector is assembled and then the flexible connector is mated with the catheter for sealing connection;
wherein the step of assembling the flexible connector specifically refers to: firstly, mounting the mounting seat (2) and the spherical sealing ring (7) on the spherical connector (101) from two ends of the short connecting pipe (1), mounting the first baffle ring (4) after the first spring (5) is put in, and pushing the first spring (5) to press the spherical sealing ring (7) to compress the spherical sealing ring (7) between the spherical connector (101) of the short connecting pipe (1) and an inner axial guide part (205) in A of the mounting seat (2) by the first baffle ring (4) in the limit mounting process of the first baffle ring (4) and the mounting seat (2); then, the mounting seat (2) provided with the short connecting pipe (1) is placed in the seat connecting part of the sleeve (3), the inclined surface sealing ring (12) and the second spring (9) are sequentially placed in the seat connecting part, the second baffle ring (8) is mounted, and in the limit mounting process of the second baffle ring (8) and the sleeve (3), the second baffle ring (8) pushes the second spring (9) to press the inclined surface sealing ring (12) so as to press the inclined surface sealing ring (12) between the outer axial guiding part (204) of the A of the mounting seat (2) and the inner axial guiding part (303) of the B of the sleeve (3);
the step of interfacing the flexible connector with the catheter specifically refers to: firstly, installing the split clamping plate (15) in a groove at the end part of the short connecting pipe (1), and installing a joint sealing ring (17) on a catheter joint (18); then, adjusting the angle of the central axis of the short connecting pipe (1) relative to the central axis of the mounting seat (2) and the axial position of the rotation center of the short connecting pipe (1) relative to the sleeve (3) so as to enable the end part of the short connecting pipe (1) to be attached to the end part of the conduit joint (18); and finally, the quick-release clamp (16) is used for simultaneously buckling and locking the split clamping plate (15) arranged on the short connecting pipe (1) and the connecting convex part of the conduit joint (18), so that a conduit is flexibly connected to one end of the flexible connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210661828.6A CN115031074B (en) | 2022-06-13 | 2022-06-13 | Flexible connector, flexible connecting structure of catheter and flexible connecting method of catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210661828.6A CN115031074B (en) | 2022-06-13 | 2022-06-13 | Flexible connector, flexible connecting structure of catheter and flexible connecting method of catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115031074A CN115031074A (en) | 2022-09-09 |
| CN115031074B true CN115031074B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210661828.6A Active CN115031074B (en) | 2022-06-13 | 2022-06-13 | Flexible connector, flexible connecting structure of catheter and flexible connecting method of catheter |
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| Country | Link |
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| CN (1) | CN115031074B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101021293A (en) * | 2007-03-19 | 2007-08-22 | 卢秉威 | Sealed ball shape compensating device |
| CN201081070Y (en) * | 2007-10-19 | 2008-07-02 | 史松明 | Self adjusting sealed ball compensator |
| CN101576185A (en) * | 2009-05-27 | 2009-11-11 | 嘉利特荏原泵业有限公司 | Universal rotating fluid pipeline |
| DE102009031738A1 (en) * | 2009-06-30 | 2011-01-05 | Trw Automotive Gmbh | Ball joint for motor vehicle, has bellows provided with housing-sided seat, and ball head accommodated in joint shell in pivotable manner, where joint shell is inserted in recess of joint housing and is made of plastic as single piece |
| CN209041817U (en) * | 2018-09-20 | 2019-06-28 | 福建省闽旋科技股份有限公司 | A kind of double end can any beat rotary joint |
-
2022
- 2022-06-13 CN CN202210661828.6A patent/CN115031074B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101021293A (en) * | 2007-03-19 | 2007-08-22 | 卢秉威 | Sealed ball shape compensating device |
| CN201081070Y (en) * | 2007-10-19 | 2008-07-02 | 史松明 | Self adjusting sealed ball compensator |
| CN101576185A (en) * | 2009-05-27 | 2009-11-11 | 嘉利特荏原泵业有限公司 | Universal rotating fluid pipeline |
| DE102009031738A1 (en) * | 2009-06-30 | 2011-01-05 | Trw Automotive Gmbh | Ball joint for motor vehicle, has bellows provided with housing-sided seat, and ball head accommodated in joint shell in pivotable manner, where joint shell is inserted in recess of joint housing and is made of plastic as single piece |
| CN209041817U (en) * | 2018-09-20 | 2019-06-28 | 福建省闽旋科技股份有限公司 | A kind of double end can any beat rotary joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115031074A (en) | 2022-09-09 |
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