CN208852155U

CN208852155U - A kind of continous way injection device

Info

Publication number: CN208852155U
Application number: CN201820494361.XU
Authority: CN
Inventors: 顾仓; 王毓; 于振中; 李文兴
Original assignee: HRG International Institute for Research and Innovation
Current assignee: HRG International Institute for Research and Innovation
Priority date: 2018-04-09
Filing date: 2018-04-09
Publication date: 2019-05-14
Anticipated expiration: 2028-04-09

Abstract

The utility model discloses a kind of continous way injection devices, are related to Material injection field, including injection-tube, piston rod, suction pipe head, the first blocking head, the first spring, injection head, the second blocking head and second spring；One end of the injection-tube is equipped with piston rod, and other end fork is feed pipe and discharge nozzle；The suction pipe head connects the feed pipe, and the first blocking head is mounted in the suction pipe head, and one end of first spring connects the feed pipe, and other end connection described first stops head；The injection head connects the discharge nozzle, and the second blocking head is mounted in the injection head, and one end of the second spring connects the injection head, and other end connection described second stops head.Utility model has the advantages that may be implemented continuously to inject, structure is simple, economical and practical, is readily produced, and pollution is few, has certain versatility.

Description

A kind of continous way injection device

Technical field

The utility model relates to Material injection field more particularly to a kind of continous way injection devices.

Background technique

Injection method be medical fluid is directly injected into animal body tissue using asepsis injector or infusion apparatus, body cavity or intravascular Medication, be most common technology on clinical treatment, have the characteristics that certain, quick.The injection device of Most current, Per injection is completed, and is both needed to remove injection device, is pumped into Material again from inlet, is then injected, such injection dress It is relatively low to set injection efficiency, charging is also relatively complicated every time, while being not easy to injection measurement, larger to Influence of production.

Utility model content

The continous way continuously injected injection dress may be implemented the technical problem to be solved by the utility model is to provide a kind of It sets.

The utility model is to solve a kind of above-mentioned technical problem: continous way injection device by the following technical programs, packet Include injection-tube (1), piston rod (2), suction pipe head (3), the first blocking head (4), the first spring (5), injection head (6), the second blocking Head (7) and second spring (8)；

One end of the injection-tube (1) is equipped with piston rod (2), and other end fork is feed pipe (11) and discharge nozzle (12)；The discharge nozzle (12) includes leading portion and back segment, and the caliber of leading portion is greater than the caliber of back segment, and leading portion is close to the discharging Manage the outlet end of (12)；

The suction pipe head (3) includes leading portion and back segment, and the caliber of leading portion is less than the caliber of back segment, back segment connection it is described into Expects pipe (11)；Described first stops head (4) to include cylindrical section and rotary table section；The side wall of its cylindrical section is equipped with several grooves, each ditch Slot extends to the other end from one end of cylindrical section；Rotary table section is by one end end face of cylindrical section, and cross-sectional diameter is gradually Reduced rotary table；Described first stops head (4) to be mounted in the back segment of the suction pipe head (3), cylindrical section and the suction pipe head (3) back segment inner cavity matches, and the end of rotary table section corresponds to the leading portion of the suction pipe head (3)；One end of first spring (5) It connects the feed pipe (11), other end connection described first stops head (4)；

The injection head (6) connects the discharge nozzle (12)；Described second stops head (7) to include cylindrical section and rotary table section； The side wall of its cylindrical section is equipped with several grooves, and each groove extends to the other end from one end of cylindrical section；Rotary table section is by cylinder One end end face of section starts, the rotary table that cross-sectional diameter is gradually reduced；Described second stops head (7) to be mounted on the injection head (6) in, cylindrical section is matched with the inner cavity of the injection head (6), after the end of rotary table section corresponds to the discharge nozzle (12) Section；One end of the second spring (8) connects the injection head (6), and other end connection described second stops head (7).

As the technical solution of optimization, the arrival end of the feed pipe (11) is equipped with petal aperture, described petal to open The circular slab and several petal holes around circular slab that hole includes the entrance center positioned at the feed pipe (11).It is located at The circular slab of the entrance center of feed pipe can be used for support spring, and petal aperture can guarantee that liquid flow stream is smooth.

As the technical solution of optimization, the outlet end of the injection head (6) is equipped with petal aperture, the petal aperture Circular slab including being located at the export center of the injection head (6) and several petal holes around circular slab.Positioned at note The circular slab for penetrating the export center of head can be used for support spring, and petal aperture can guarantee that liquid flow stream is smooth.

As the technical solution of optimization, one end of first spring (5) is connected to the arrival end of the feed pipe (11) At center, the other end is connected to the end center for the cylindrical section that described first stops head (4)；The one of the second spring (8) End is connected at the outlet end center of the injection head (6), and the other end is connected to the end for the cylindrical section that described second stops head (7) At portion center.

As the technical solution of optimization, described first stops the side wall of head (4) to be respectively provided with four grooves, and each groove is described in First stops the cross-sectional circumferential of the cylindrical section of head (4) to be equally spaced；Described second stops the side wall of head (7) to be respectively provided with four ditches The cross-sectional circumferential of slot, the cylindrical section that each groove stops head (7) along described second is equally spaced.

As the technical solution of optimization, the leading portion of the discharge nozzle (12) connects its back segment by the step of chamfer bevel, The leading portion of the suction pipe head (3) connects its back segment by the step of chamfer bevel.Stop head, the second resistance by step limitation first The shift position of stopper, step keep blocking effect more preferable with blocking head cooperation.

As the technical solution of optimization, described first stops the chamfer angle of the rotary table section of head (4) and the suction pipe head (3) Step chamfer angle it is identical, it is described first stop head (4) rotary table section and the suction pipe head (3) step inner cavity match It closes；Described second stops the chamfer angle of the rotary table section of head (7) identical as the chamfer angle of step of the discharge nozzle (12), institute The rotary table section for stating the second blocking head (7) is matched with the step inner cavity of the discharge nozzle (12).

Utility model has the advantages that may be implemented continuously to inject, structure is simple, economical and practical, is readily produced, pollution It is few, there is certain versatility.

Detailed description of the invention

Fig. 1 is the main view sectional view of the utility model continous way injection device.

Fig. 2 is the axonometric drawing of the utility model continous way injection device.

Fig. 3 is the axonometric drawing of injection-tube in the utility model.

Fig. 4 is the axonometric drawing of suction pipe head in the utility model.

Fig. 5 is the first axonometric drawing for stopping head in the utility model.

Fig. 6 is the axonometric drawing of injection head in the utility model.

Specific embodiment

As shown in figures 1 to 6, a kind of continous way injection device, including injection-tube 1, piston rod 2, suction pipe head 3, first stop head 4, the first spring 5, injection head 6, second stop head 7 and second spring 8.

One end of injection-tube 1 is equipped with piston rod 2, and under the effect of external force, piston rod 2 can be made past in injection-tube 1 Multiple movement.

The other end fork of injection-tube 1 is feed pipe 11 and discharge nozzle 12；The arrival end of feed pipe 11 is equipped with petal open Hole, if circular slab and the dry petal around circular slab that the petal aperture includes the entrance center positioned at feed pipe 11 Shape hole；Discharge nozzle 12 includes leading portion and back segment, and the caliber of leading portion is greater than the caliber of back segment, and leading portion passes through the step of 45 ° of chamferings Back segment is connected, leading portion is close to the outlet end of discharge nozzle 12.

Suction pipe head 3 includes leading portion and back segment, and the caliber of leading portion is less than the caliber of back segment, and leading portion passes through the platform of 45 ° of chamferings Rank connects back segment, and back segment connects feed pipe 11 by pipe fitting.

First stops head 4 to include cylindrical section and rotary table section；The side wall of its cylindrical section is set there are four groove, and each groove is from circle One end of shell of column extends to the other end, and each groove is equally spaced along the cross-sectional circumferential of the cylindrical section of the first blocking head 4；Rotary table section For one end end face by cylindrical section, the rotary table that cross-sectional diameter is gradually reduced, the side of rotary table section is 45 ° of chamferings.

First blocking head 4 is mounted in the back segment of suction pipe head 3, and cylindrical section is matched with the back segment inner cavity of suction pipe head 3, circle Platform section is matched with the step inner cavity of suction pipe head 3, and the end of rotary table section corresponds to the leading portion of suction pipe head 3.

One end of first spring 5 is connected on the circular slab at the arrival end center of feed pipe 11, and the other end is connected to One stops the end center of the cylindrical section of head 4.

Injection head 6 connects discharge nozzle 12 by pipe fitting, and the outlet end of injection head 6 is equipped with petal aperture, the petal The circular slab and several petal holes around circular slab that shape aperture includes the export center positioned at injection head 6.

Second stops head 7 to stop the structure of head 4 identical with first, including cylindrical section and rotary table section；The side wall of its cylindrical section If each groove extends to the other end from one end of cylindrical section, the cylindrical section that each groove stops head 7 along second there are four groove Cross-sectional circumferential is equally spaced；Rotary table section is the rotary table that cross-sectional diameter is gradually reduced by one end end face of cylindrical section, circle The side of platform section is 45 ° of chamferings.

Second blocking head 7 is mounted in injection head 6, and cylindrical section is matched with the inner cavity of injection head 6, rotary table section and discharging The step inner cavity of pipe 12 matches, and the end of rotary table section corresponds to the back segment of discharge nozzle 12.

One end of second spring 8 is connected on the circular slab at the outlet end center of injection head 6, and the other end is connected to second Stop the end center of the cylindrical section of head 7.

First spring 5 and second spring 8 are all made of light elastic spring.

When piston rod 2 is made to take out material movement, stream pressure overcomes spring pressure to make the first blocking head 4 to far from suction pipe head 3 Step direction it is mobile, stream flows to the inside of injection-tube 1 along the groove of the cylindrical section of the first blocking head 4, to complete to take out Material；Second stops head 7 due to the effect of stream pressure and spring pressure at this time, can be pressed at the step of discharge nozzle 12, stops Material flows outwardly to.When piston rod 2 makees action of injection, first stops effect of the head 4 due to stream pressure and spring pressure, meeting It is pressed at the step of suction pipe head 3, stream is stopped to enter injection-tube 1；Stream pressure overcomes spring pressure to make the second blocking at this time First 7 is mobile to the direction of the step far from discharge nozzle 12, and stream flows to the outside of injection-tube 1, completes injection.In this way, working as piston , it can be achieved that continuous injection when bar 2 moves back and forth under external force.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle Within the scope of shield.

Claims

1. A continuous injection device, characterized in that: it comprises a syringe (1), a piston rod (2), a suction pipe head (3), a first blocking head (4), a first spring (5), an injection head ( 6), the second blocking head (7) and the second spring (8);

One end of the injection pipe (1) is installed with a piston rod (2), and the other end is forked into a feed pipe (11) and a discharge pipe (12); the discharge pipe (12) includes a front section and a back section, The pipe diameter of the front section is larger than the pipe diameter of the rear section, and the front section is close to the outlet end of the discharge pipe (12);

The suction pipe head (3) includes a front section and a rear section, the pipe diameter of the front section is smaller than the pipe diameter of the rear section, and the rear section is connected to the feed pipe (11); the first blocking head (4) includes a cylindrical section and a rear section. The circular truncated section; the side wall of the cylindrical section is provided with a number of grooves, and each groove extends from one end of the cylindrical section to the other end; the circular truncated section is a circular truncated cone with a gradually decreasing cross-sectional diameter starting from one end face of the cylindrical section; The first blocking head (4) is installed in the rear section of the suction pipe head (3), its cylindrical section is matched with the cavity of the rear section of the suction pipe head (3), and the end of the circular truncated section corresponds to the suction pipe The front section of the head (3); one end of the first spring (5) is connected to the feed pipe (11), and the other end is connected to the first blocking head (4);

The injection head (6) is connected to the discharge pipe (12); the second blocking head (7) includes a cylindrical section and a circular truncated section; the side wall of the cylindrical section is provided with a plurality of grooves, and each groove is One end of the cylindrical segment extends to the other end; the circular truncated segment is a circular truncated truncated cone that starts from one end face of the cylindrical segment and whose cross-sectional diameter gradually decreases; the second blocking head (7) is installed in the injection head (6), which is The cylindrical section is matched with the inner cavity of the injection head (6), and the end of the circular truncated section corresponds to the rear section of the discharge pipe (12); one end of the second spring (8) is connected to the injection head ( 6), the other end is connected to the second blocking head (7).

2. The continuous injection device according to claim 1, characterized in that: the inlet end of the feeding pipe (11) is provided with a petal-shaped opening, and the petal-shaped opening comprises a 11) A circular plate in the center of the entrance and several petal-shaped holes around the circular plate.

3. The continuous injection device according to claim 1, characterized in that: the outlet end of the injection head (6) is provided with a petal-shaped opening, and the petal-shaped opening comprises a valve located at the injection head (6) A circular plate in the center of the outlet and several petal-shaped holes around the circumference of the circular plate.

4. The continuous injection device according to any one of claims 1-3, characterized in that: one end of the first spring (5) is connected at the center of the inlet end of the feeding pipe (11), and the other One end is connected at the center of the end of the cylindrical section of the first blocking head (4); one end of the second spring (8) is connected at the center of the outlet end of the injection head (6), and the other end is connected at the center of the outlet end of the injection head (6). At the center of the end of the cylindrical section of the second blocking head (7).

5. The continuous injection device according to claim 1, characterized in that: the side walls of the first blocking head (4) are each provided with four grooves, and each groove is along the first blocking head (4). ) are equally spaced around the circumference of the cross section of the cylindrical section; the side walls of the second blocking head (7) are each provided with four grooves, and each groove is along the transverse direction of the cylindrical section of the second blocking head (7). The sections are equally spaced around the circumference.

6. The continuous injection device according to claim 1, characterized in that: the front section of the discharge pipe (12) is connected to its rear section by a step of inclined chamfering, and the front section of the suction pipe head (3) is connected by an inclined chamfered step. The chamfered step connects its rear segment.

7. The continuous injection device according to claim 6, characterized in that: the chamfering angle of the circular truncated section of the first blocking head (4) is the same as the chamfering angle of the step of the pipette head (3), The circular truncated section of the first blocking head (4) is matched with the stepped inner cavity of the suction pipe head (3); the chamfering angle of the circular truncated section of the second blocking head (7) is compatible with the discharge pipe ( 12) The chamfering angles of the steps are the same, and the circular truncated section of the second blocking head (7) is matched with the stepped inner cavity of the discharge pipe (12).