Summary of the invention
The present invention provides a kind of washers for setting delivery nozzle plug, solve and now extract physiology by existing syringe
Time-consuming present in salt water irrigating catheter and wastes the big problem of cleaning solution.
The above technical problem is solved through the following technical scheme: a kind of washer setting delivery nozzle plug, including needle
The push rod that one end of cylinder, the piston that sealing is slidably connected in syringe and the slave syringe being connected on piston is stretched out, the syringe
The other end be equipped with delivery nozzle, the piston is equipped with delivery nozzle filling head, is removably connected in the delivery nozzle and closes
The delivery nozzle lid of the delivery nozzle forms fluid reservoir between the syringe, piston and delivery nozzle, store in the fluid reservoir clear
Washing lotion;The piston be moved to be connected to syringe equipped with delivery nozzle one end on when, be formed by between the syringe and piston
Spatial volume is zero, and the delivery nozzle filling head is threaded through in the delivery nozzle.When in filling cleaning solution to syringe, move first
Piston is filled in delivery nozzle to delivery nozzle filling head so that residual air is small in delivery nozzle, and residual air is small, be discharged into
The cleaning solution for needing to be discharged when entering the air in liquid storage chamber is few, to once save cleaning solution.When being cleaned, delivery nozzle is removed
Then lid connects delivery nozzle with conduit, then push rod goes driving piston press physiological saline to make physiological saline export
Conduit is rinsed in conduit, due to wedding photography delivery nozzle filling head, delivery nozzle filling head can be by delivery nozzle at this time
Interior cleaning solution discharge, plays the role of secondary saving cleaning solution.Due to having pre-installed cleaning solution in advance, it is used directly for vein
The washing pipe of remaining needle, to play the role of time-saving.
Preferably, the piston is moved to when being connected to syringe equipped on one end of delivery nozzle, the delivery nozzle filling
Head is threaded through in the delivery nozzle and fills the entire inner space of full delivery nozzle.Saving cleaning solution can be maximized.
Preferably, the piston includes first segment and second segment, the first segment is located at the second segment and delivery nozzle
Between, between the first segment and second segment can division, push rod connection second segment is far from one end of first segment.The skill
Art scheme make take out cleaning solution when being increased to for liquid storage chamber go leg second segment to realize by cleaning solution, i.e. the dilatation of liquid storage chamber and
The entrance of cleaning solution is what synchronous equal amount carried out.So as to avoid existing directly realizing liquid storage chamber by push rod come piston
Dilatation, be easy to cause when cleaning solution admission velocity is not caught up with into liquid storage chamber tolerance increase the phenomenon that, the tolerance of entrance
Increase then not only be discharged gas when time-consuming and also waste cleaning solution also can be more.
Preferably, the connector sleeve being set in outside delivery nozzle is connected on the syringe, the inner surface of the connector sleeve
It is equipped with internal screw thread, the delivery nozzle lid includes tube body and is the flexible close of two parts by the inner space seal isolation of tube body
Mounting, the tube body are equipped with the external thread sleeve section being set in the delivery nozzle, and the external thread sleeve section is threaded in described
In connector sleeve, the delivery nozzle lid is sealed against on the port of the delivery nozzle by the flexible sealing fin by delivery nozzle
It closes, the flexible sealing fin closes residence towards delivery nozzle sunken inside under the differential pressure action of the fluid reservoir inside and outside
State the port of delivery nozzle.Delivery nozzle lid in the technical solution is not only able to be sealed delivery nozzle but also be able to carry out anti-
Dirt.Convenient and sealed reliable when delivery nozzle metal sealing.Unlock rod can automatically reset to prevent the lock again of interference lock pin
On.
Preferably, the flexible sealing fin is under the differential pressure action of the fluid reservoir inside and outside towards delivery nozzle sunken inside
And when closing the port of the delivery nozzle, it is fixed together between the push rod and syringe by fixed mechanism;The fixation
Mechanism include along axially extending end face of the perforation push rod far from piston one end of push rod unlock rod mounting hole, be threaded through unlock rod
Unlock rod in mounting hole, the lockhole being arranged on the inner peripheral surface of syringe, is worn the lock pin mounting hole being arranged on the circumferential surface of push rod
The lock pin and driving lock pin being located in lock pin mounting hole stretch out lock pin mounting hole and are inserted into the lock pin driving spring in the lockhole,
The inner end of the unlock rod is equipped with to push away and grab, and the lock pin is equipped with solution lockhole, is equipped with guide surface in the solution lockhole, drives unlock rod
It is pushed away described in when being inserted into push rod and grabs insertion solution lockhole and squeeze the guide surface to driving lock pin to extract out of lockhole, the fixation
Mechanism further includes that the driving being arranged in push rod pushes away the unlock rod reset spring grabbed and extract the solution lockhole.It can prevent from touching
Push rod and destroy infusion mouth sealing.
Preferably, two lock pin mounting holes are along the circumferentially distributed of push rod, two lock pins there are two the lock pin mounting holes
Mounting hole connection, total two lock pins in two lock pin mounting holes share a lock pin driving spring.Knot
Structure is compact.It is fixed reliable.
The present invention also provides a kind of washers for setting delivery nozzle plug to fill fluid-discharge method, which is characterized in that the first step makes
Piston is moved to syringe and to final position delivery nozzle filling head is threaded through in the delivery nozzle equipped with one end of delivery nozzle;
Delivery nozzle is inserted into cleaning solution by second step;Third step promotes piston in syringe towards the direction pulling-pushing rod far from delivery nozzle
It is mobile, so that cleaning solution enters in fluid reservoir under atmospheric pressure;4th step, delivery nozzle lid is covered it is close in delivery nozzle
Seal the outlet of delivery nozzle;Then one end push rod that delivery nozzle lid is equipped with delivery nozzle towards syringe is removed when the 5th step, cleaning, is pushed away
Bar drives the indoor physiological saline of piston press liquid storage and physiological saline is exported from delivery nozzle, and last delivery nozzle filling head is inserted
Enter in delivery nozzle and the cleaning solution in liquid storage chamber is completely exhausted out.
Preferably, in third step, the mobile first segment of push rod and the pressure for making the space between first segment and second segment
Decline, cleaning solution enters fluid reservoir and goes to drive second segment mobile towards first segment under atmospheric pressure;It is conveyed in 4th step
Mouth lid is connected in delivery nozzle by flexible sealing fin seals up delivery nozzle, and side of the flexible sealing fin far from delivery nozzle is exposed
In an atmosphere, after flexible sealing fin seals up delivery nozzle, piston further is driven towards the direction pulling-pushing rod far from delivery nozzle
It is mobile so that generate negative pressure in fluid reservoir, which seal against flexible sealing fin more reliably to convey
On mouth.
Preferably, sealing against flexible sealing fin when the indoor negative pressure of liquid storage reaches sets requirement in the 4th step
When in delivery nozzle, push rod and syringe, which are fixed together, by fixed mechanism prevents piston from generating interior move and influences flexible close
The sealing effect of mounting;In 5th step, first release the positioning action of fixed mechanism, then mobile putter and make fluid reservoir in production
Delivery nozzle lid is removed again after raw positive pressure, so that the suction function in physiological saline be avoided to interfere removing and causing to take for delivery nozzle lid
Flexible sealing fin is damaged when lower delivery nozzle lid.
Preferably, releasing the process of fixed mechanism in the 5th step are as follows: inside push away unlock rod, unlock rod driving, which pushes away, grabs insertion lock
In the solution lockhole of pin, pushes away and cooperate with guide surface when grabbing insertion solution lockhole and drive lock pin towards inside contracting in push rod to out of lockhole
It extracts, all lock pins, which all drive by same root unlock rod, to be realized from determining to extract in hole.
The present invention, which has an advantage that, can save scavenging period;It is generated when can reduce filling and output cleaning solution
Cleaning solution wastage.
Detailed description of the invention
Fig. 1 is the schematic diagram of the washer for setting delivery nozzle plug in the present invention.
Fig. 2 is the partial enlargement diagram at the B of Fig. 1.
Fig. 3 is the partial enlargement diagram at the A of Fig. 1.
In figure: syringe 1, delivery nozzle 11, connector sleeve 12, piston 2, first segment 21, second segment 22, delivery nozzle filling head 23,
Slide bar 24, sliding hole 25, push rod 3, pilot hole 31, delivery nozzle lid 4, tube body 41, external thread sleeve section 411, handgrip section 412, flexibility are close
Mounting 42, fixed mechanism 6, unlock rod mounting hole 61, unlock rod 62, positioning disk 621, pushes away and grabs 622, lock pin mounting hole fluid reservoir 5
63, lockhole 64, lock pin 65, Xie Suokong 651, guide surface 652, lock pin driving spring 66, unlock rod reset spring 67.
Specific embodiment
The present invention will be further described below with reference to the accompanying drawings and embodiments.
Referring to figure 1, figure 2 and figure 3, a kind of washer setting delivery nozzle plug, including syringe 1, sealing are slidably connected at needle
The push rod 3 and delivery nozzle lid 4 that one end of piston 2, the slave syringe being connected on piston in cylinder is stretched out.The other end of syringe is equipped with
Delivery nozzle 11 and the connector sleeve 12 being set in outside delivery nozzle.The inner surface of connector sleeve is equipped with internal screw thread.Delivery nozzle lid 4 includes
Tube body 41 and by the inner space of tube body seal isolation be two parts flexible sealing fin 42.Tube body is equipped with and is set in delivery nozzle
On external thread sleeve section 411 and stretch out connector sleeve handgrip section 412.External thread sleeve section is threaded in connector sleeve.Delivery nozzle
Lid is sealed against by flexible sealing fin closes delivery nozzle on the port of delivery nozzle.Flexible sealing fin is in fluid reservoir
The port of delivery nozzle is closed towards delivery nozzle sunken inside under external differential pressure action.Piston 2 includes first segment 21 and second
Section 22.First segment is between second segment and delivery nozzle.The side of first segment is equipped with delivery nozzle filling head 23.First segment, syringe
Fluid reservoir 5 is formed between delivery nozzle.Cleaning solution is stored in fluid reservoir, cleaning solution is physiological saline.Piston is moved to abutting
When on one end that syringe is equipped with delivery nozzle.It is zero that spatial volume is formed by between syringe and piston, and delivery nozzle filling head is worn
It is located in delivery nozzle and fills the entire inner space of full delivery nozzle.The other side of first segment is equipped with slide bar 24.Second segment
Side is equipped with sliding hole 25.Slide bar is threaded through in sliding hole.It being capable of division between first segment and second segment.Push rod is fixed in second segment
The other side is on one end far from first segment.Flexible sealing fin is under the differential pressure action of the fluid reservoir inside and outside towards delivery nozzle
Sunken inside and when closing the port of the delivery nozzle, be fixed together between push rod and syringe by fixed mechanism 6.Fixed machine
Structure include along axially extending end face of the perforation push rod far from piston one end of push rod unlock rod mounting hole 61, be threaded through unlock rod
Unlock rod 62 in mounting hole, the lock pin mounting hole 63 being arranged on the circumferential surface of push rod, the lock being arranged on the inner peripheral surface of syringe
Hole 64, the lock pin 65 being threaded through in lock pin mounting hole and driving lock pin stretch out lock pin mounting hole and are inserted into the lock pin driving in lockhole
Spring 66.The outer end of push rod is equipped with pilot hole 31.The outer end of unlock rod is equipped with the positioning disk 621 being slidably connected in pilot hole.
The inner end of unlock rod, which is equipped with to push away, grabs 622.It pushes away there are two grabbing.There are two lock pin mounting holes, week of two lock pin mounting holes along push rod
To distribution, two lock pin mounting hole connections, total two lock pins in two lock pin mounting holes share a lock pin driving
Spring.Lock pin is equipped with solution lockhole 651.It solves and is equipped with guide surface 652 in lockhole.When pressing guiding dish driving unlock rod insertion push rod,
Two push away to grab and are inserted into the solution lockhole of two lock pins correspondingly and squeeze guide surface to driving lock pin to extract out of lockhole.Gu
Determining mechanism further includes that the driving being arranged in push rod pushes away the unlock rod reset spring 67 grabbed and extract the solution lockhole.
The filling fluid-discharge method of the washer for setting delivery nozzle plug of the invention are as follows: the first step makes piston be moved to syringe to set
There is one end of delivery nozzle to final position delivery nozzle filling head to be threaded through in the delivery nozzle;Second step, by delivery nozzle
It is inserted into cleaning solution;Third step promotes piston to move in syringe towards the direction pulling-pushing rod far from delivery nozzle, thus in atmosphere
Cleaning solution enters in fluid reservoir under the action of pressure;Delivery nozzle lid is covered in delivery nozzle and seals up going out for delivery nozzle by the 4th step
Mouthful;Then one end push rod that delivery nozzle lid is equipped with delivery nozzle towards syringe is removed when the 5th step, cleaning, push rod drives piston press
The indoor physiological saline of liquid storage and physiological saline is exported from delivery nozzle, make in last delivery nozzle filling head insertion delivery nozzle
The cleaning solution obtained in liquid storage chamber is completely exhausted out.In third step, push rod moves first segment and makes between first segment and second segment
The pressure in space declines, and cleaning solution enters fluid reservoir and goes to drive second segment mobile towards first segment under atmospheric pressure;The
Delivery nozzle lid is connected in delivery nozzle by flexible sealing fin in four steps seals up delivery nozzle, and flexible sealing fin is far from delivery nozzle
Side it is exposed in an atmosphere, after flexible sealing fin seals up delivery nozzle, further towards far from delivery nozzle direction pulling-pushing rod
And drive piston mobile so that generating negative pressure in fluid reservoir, which seal flexible sealing fin more reliably
It is connected in delivery nozzle.When the indoor negative pressure of liquid storage reaches sets requirement flexible sealing fin is sealed against in 4th step
When in delivery nozzle, push rod and syringe, which are fixed together, by fixed mechanism prevents piston from generating interior move and influencing flexible sealing
The sealing effect of piece;In 5th step, first release the positioning action of fixed mechanism, then mobile putter and make fluid reservoir in generation
Delivery nozzle lid is removed after positive pressure again, so that suction function in physiological saline be avoided to interfere removing and causing to remove for delivery nozzle lid
Flexible sealing fin is damaged when delivery nozzle lid.The process of fixed mechanism is released in 5th step are as follows: inside push away unlock rod, unlock rod driving pushes away
In the solution lockhole for grabbing insertion lock pin, push away when grabbing insertion solution lockhole with guide surface cooperate and drive lock pin towards inside contract in push rod to
It is extracted out of lockhole, all lock pins, which all drive by same root unlock rod, to be realized from determining to extract in hole.