Harness connector of breathing machine
Technical Field
The application relates to the field of medical equipment, in particular to a wire harness connector of a breathing machine.
Background
In modern clinical medicine, a ventilator has been widely used in respiratory failure due to various reasons, anesthesia and breathing management during major surgery, respiratory support therapy and emergency resuscitation as an effective means for manually replacing the function of spontaneous ventilation, and has a very important position in the modern medical field. The breathing machine is a vital medical device which can prevent and treat respiratory failure, reduce complications and save and prolong the life of a patient.
The wire harness is used for connecting signals and power supplies between carrying equipment, is a wiring part for connecting each electrical equipment in a circuit, and is used for transmitting the signals and the power supplies between medical equipment in multiple purposes. Ventilators are often used in conjunction with other medical facilities such as endotracheal tubes.
Under the special environment of medical industry use, medical pencil usually can lead to the pencil to peg graft badly through repeated plug many times, and pencil joint damages even. Under the interference of external signals, the transmission of wire harness signals or power supplies can be unstable or even impossible, and the use is influenced.
SUMMERY OF THE UTILITY MODEL
In order to improve pencil signal transmission's stability, this application provides a pencil joint of breathing machine.
The application provides a pencil joint of breathing machine adopts following technical scheme:
the utility model provides a pencil of breathing machine connects, includes casing and pencil, the one end of casing is equipped with the interface, and the other end is equipped with the installing port, the pencil is connected with the installing port, the one end slip cover that the casing was kept away from to the pencil is equipped with anti-interference subassembly.
By adopting the technical scheme, when the wiring harness joint of the respirator needs to be connected with other wiring harnesses, the anti-interference assembly slides to the side of the mounting hole, and the stability of wiring harness signal transmission is improved by filtering high-frequency signals such as mobile phone signals and current induction signals around the respirator.
Optionally, the anti-interference component includes a ferrite core and a magnetic ring sleeved on the ferrite core, the ferrite core is sleeved on the wire harness, the magnetic ring is set to be a hollow cylinder, and the magnetic ring is fixedly connected with the ferrite core.
Through adopting above-mentioned technical scheme, the ferrite core has fine anti-interference, and electric leakage or static can appear in the fine position of pencil, can let host computer and power between have great earth's electric difference, and this kind of voltage difference can stand up ground impulse current in connecing the plug-in an instant. The magnetic ring can effectively restrain instantaneous impact current and slowly release static electricity.
Optionally, a heat shrink tube is sleeved on the magnetic ring, two ends of the heat shrink tube shrink, and the heat shrink tube wraps the magnetic ring.
By adopting the technical scheme, two ends of the heat-shrinkable tube are shrunk, and the heat-shrinkable tube slides on the wire harness to drive the magnetic ring and the ferrite magnetic core in the heat-shrinkable tube to move; the outer layer material of the heat shrinkable tube has the characteristics of insulation, corrosion resistance, wear resistance and the like, and the inner layer has the advantages of low melting point, waterproof sealing, high adhesion and the like, so that insulation protection is provided for the wire harness.
Optionally, annular flexible pads are arranged at two ends of the heat shrink tube.
By adopting the technical scheme, the heat shrinkable tube slides on the wire harness, and the flexible pad reduces the possibility of bending of the wire harness and friction damage of the heat shrinkable tube.
Optionally, a poking block is arranged on the surface of the heat shrink tube.
Through adopting above-mentioned technical scheme, operating personnel slides anti-interference subassembly through dialling the piece, is convenient for put forth effort.
Optionally, be equipped with seal assembly on the installing port, seal assembly includes annular mount pad, threaded sleeve is equipped with the sleeve on the mount pad, the tip of mount pad dorsad casing is equipped with a plurality of flexure strips, be equipped with the elastic cylinder in the mount pad, the flexure strip is along mount pad circumference evenly distributed, the tip and the flexure strip of elastic cylinder dorsad casing flush, the elastic cylinder offsets with one side of flexure strip dorsad sleeve inner wall, the one end that the casing was kept away from to the sleeve is equipped with the chamfer, the tip lateral wall of flexure strip dorsad mount pad is equipped with the sloping block.
By adopting the technical scheme, the top end of the inner wall of the sleeve is provided with the chamfer, one end of the elastic sheet, which is back to the mounting seat, is correspondingly arranged into a wedge shape, and at the moment, the sleeve is screwed in, so that one end of the elastic sheet, which is back to the mounting seat, is abutted against the chamfer of the inner wall of the sleeve, and the elastic sheet can be pressed to the axis of the mounting seat; the elastic sheet extrudes the elastic tube to enable the elastic tube to be tightly attached to the wiring harness, and a gap between the wiring harness and the mounting seat is filled, so that the sealing performance of the position is further enhanced, and the stability of signal transmission is improved.
Optionally, one end, away from the shell, of the sleeve is provided with a blocking ring, the inner wall of the blocking ring is abutted to the outer wall of the wire harness, and the inner wall of the blocking ring is provided with a first sealing layer.
Through adopting above-mentioned technical scheme, first sealing layer is contradicted with the outer wall of pencil, will keep off the clearance between ring and the pencil and fill up, has improved the leakproofness, and it is inside to reduce sterilized water or dust entering casing, hinders the possibility of signal stable transmission.
Optionally, a second sealing layer is disposed at an end of the sleeve close to the housing, and the second sealing layer abuts against a surface of the housing.
By adopting the technical scheme, the sleeve is screwed on the mounting seat, the second sealing layer deforms under the extrusion of the sleeve, the gap between the sleeve and the shell is filled, and the stability of wire harness signal transmission is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the ferrite magnetic core is arranged, so that an anti-interference effect is achieved when wiring harnesses of the respirator are connected, and the stability of wiring harness signal transmission is improved;
2. the sealing assembly is arranged, so that the possibility that the transmission of a wire harness signal or a power supply is unstable or even impossible due to the fact that disinfectant water or dust enters the shell is reduced;
3. and arranging a first sealing layer to fill the gap between the sleeve and the wiring harness, so that the sealing performance of the position is further enhanced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic structural view of a seal assembly in an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a tamper-resistant assembly in an embodiment of the present application.
Description of reference numerals: 1. a housing; 11. an interface; 12. an installation port; 2. a wire harness; 21. mounting a plate; 3. a mounting seat; 31. an external thread; 32. an elastic sheet; 33. a sloping block; 4. a sleeve; 41. an internal thread; 42. a baffle ring; 43. a first sealing layer; 44. a second sealing layer; 5. an elastic cylinder; 6. a ferrite core; 7. a magnetic ring; 8. heat shrink tubing; 81. a flexible pad; 82. and a poking block.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses pencil joint of breathing machine.
Referring to fig. 1 and 2, the harness connector of the respirator comprises a housing 1 and a harness 2, wherein one end of the housing 1 is provided with a plug port 11, and the other end of the housing 1 is provided with a mounting port 12 for mounting the harness 2. Be equipped with seal assembly on the installing port 12, the one end of pencil 2 is passed seal assembly and is inserted casing 1 from installing port 12, and the one end slip cover that casing 1 was kept away from to pencil 2 is equipped with anti-interference subassembly.
Referring to fig. 3, the anti-interference component includes a ferrite core 6, a magnetic ring 7 and a heat shrinkable tube 8, and the ferrite core 6 is sleeved outside the wire harness 2. The magnetic ring 7 is arranged into a hollow cylinder shape and is wrapped outside the ferrite magnetic core 6. The heat shrinkable tube 8 and the magnetic ring 7 are coaxially arranged, and two ends of the heat shrinkable tube 8 shrink to wrap the magnetic ring 7. In order to reduce the possibility of damaging the wire harness 2 when the heat shrinkable tube 8 slides over the wire harness 2, the constricted portions of both ends of the heat shrinkable tube 8 are covered with annular rubber flexible pads 81.
When the socket 11 of the shell 1 is connected with other terminals, the heat shrink tube 8, the magnetic ring 7 and the ferrite magnetic core 6 in the heat shrink tube are moved to the side of the mounting port 12, and high-frequency signals such as mobile phone signals and current induction signals around the breathing machine are filtered. The ferrite magnetic core 6 has good anti-interference effect, and the fine part of the wiring harness 2 can generate electric leakage or static electricity, so that a large earth electric difference can be generated between the host and the power supply, and the voltage difference can cause earth impact current at the moment of plugging. The magnetic ring 7 can effectively restrain instantaneous impact current and slowly release static electricity.
Referring to fig. 1, in order to facilitate the operator to move the anti-interference component, a dial block 82 is formed on the outer wall of the heat shrinkable tube 8.
The wiring harness 2 penetrates through the sealing assembly to be connected into the shell 1, so that the possibility that disinfectant water or dust enters the shell 1 to block stable signal transmission is reduced; when the wiring harness joint of the respirator needs to be connected with other wiring harnesses, the anti-interference assembly slides to the side of the mounting port 12, high-frequency signals such as mobile phone signals and current induction signals around the respirator are filtered, and the stability of wiring harness signal transmission is improved.
Referring to fig. 2, the seal assembly includes a mounting seat 3 welded to a mounting opening 12, the mounting seat 3 being disposed in an annular shape, coaxial with the mounting opening 12. Twelve elastic pieces 32 are welded at one end of the mounting seat 3, which is back to the shell 1, and the elastic pieces 32 are arranged along the horizontal direction. The elastic pieces are uniformly distributed around the axis of the mounting seat 3, and the gap between every two adjacent elastic pieces 32 is small. The top end of the elastic sheet 32 is formed with an inclined block 33, and the inclined block 33 inclines away from the side of the axle center of the mounting base 3.
Referring to fig. 2, an elastic tube 5 is disposed on an inner wall of the mounting seat 3, the elastic tube 5 is made of rubber, the elastic tube 5 extends toward the elastic sheet 32, an end of the elastic tube 5 is flush with an end of the elastic sheet 32, and an outer side wall of the elastic tube 5 abuts against the inner wall of the elastic sheet 32.
Referring to fig. 2, an external thread 31 is formed on the outer wall of the mounting base 3, a sleeve 4 is further arranged on the mounting base 3, an internal thread 41 matched with the external thread 31 is formed on the inner wall of the sleeve 4, and one end of the sleeve 4, which faces away from the shell 1, is chamfered.
When the sleeve 4 is screwed on the mounting seat 3, when the end part of the sleeve 4 with the chamfer is close to the elastic piece 32, the diameter of the sleeve 4 is reduced due to the chamfer, the chamfer part extrudes the inclined block 33, the top end of the elastic piece 32 can be pressed towards the axle center of the mounting seat 3, and twelve elastic pieces 32 are simultaneously close to the center. When the elastic sheet 32 is folded, the elastic sheet is pressed on the elastic tube 5 to deform the elastic tube under stress, and a gap at the joint of the wiring harness 2 and the mounting seat 3 is filled, so that the sealing performance at the joint is better.
Referring to fig. 2, in order to further improve the sealing performance, a blocking ring 42 is formed at one end of the sleeve 4 away from the housing 1, an inner ring of the blocking ring 42 abuts against an outer side wall of the wire harness 2, a first sealing layer 43 made of silica gel is glued to the inner ring of the blocking ring 42, and the first sealing layer 43 fills a gap between the blocking ring 42 and the wire harness 2. The end of the sleeve 4 close to the shell 1 is glued with a second sealing layer 44 made of silicone, and the second sealing layer 44 is extruded and deformed by the shell 1 and the sleeve 4 to fill the gap between the shell 1 and the sleeve 4.
The implementation principle that this application embodiment's pencil of breathing machine connects is: the sleeve 4 is screwed on the mounting seat 3, the elastic sheet 32 is simultaneously closed towards the center and pressed on the elastic tube 5, so that the elastic tube is stressed and deformed, and a gap at the joint of the wiring harness 2 and the mounting seat 3 is filled. When the socket 11 of the housing 1 is connected with other terminals, the heat shrink and the magnetic ring 7 and the ferrite core 6 therein are moved to the side of the mounting opening 12. High-frequency signals such as mobile phone signals around the breathing machine, current induction signals and the like are filtered.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.