WO2019052510A1 - 双联混合注射器用连接件、双联混合注射器用长喷头及双联混合注射器 - Google Patents

双联混合注射器用连接件、双联混合注射器用长喷头及双联混合注射器 Download PDF

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Publication number
WO2019052510A1
WO2019052510A1 PCT/CN2018/105529 CN2018105529W WO2019052510A1 WO 2019052510 A1 WO2019052510 A1 WO 2019052510A1 CN 2018105529 W CN2018105529 W CN 2018105529W WO 2019052510 A1 WO2019052510 A1 WO 2019052510A1
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WO
WIPO (PCT)
Prior art keywords
connector
inlet
liquid
mixing syringe
outlet
Prior art date
Application number
PCT/CN2018/105529
Other languages
English (en)
French (fr)
Inventor
林础藩
邓坤学
袁玉宇
Original Assignee
广州迈普再生医学科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201710843015.8A external-priority patent/CN107456619B/zh
Priority claimed from CN201711023168.4A external-priority patent/CN107744888A/zh
Priority claimed from CN201810097672.7A external-priority patent/CN108309795A/zh
Priority claimed from CN201810290558.6A external-priority patent/CN108498905A/zh
Priority claimed from CN201810291603.XA external-priority patent/CN108339194B/zh
Application filed by 广州迈普再生医学科技股份有限公司 filed Critical 广州迈普再生医学科技股份有限公司
Publication of WO2019052510A1 publication Critical patent/WO2019052510A1/zh

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests

Definitions

  • the present invention relates to the field of medical devices, and in particular to a connector for a double mixing syringe, a long nozzle for a double mixing syringe, and a double mixing syringe including the above connector and/or a long nozzle.
  • the same double mixing syringe cannot be used as both a spray type (installation short nozzle) and a mirror type (installation long nozzle), so the same double mixing syringe cannot be switched to the usage mode as needed. It is often necessary to configure both the spray-type dedicated double-mixed syringe and the lenticular-type dual-mixed syringe, and only one of the specific types of double-mixed syringes can be used as needed. This will not only cause unnecessary waste, but also increase costs.
  • the user manually removes the two single-cylinder syringes from one type of dual mixing syringe and reassembles them into another type of dual mixing syringe when it is desired to switch the mode of use of the dual mixing syringe.
  • Such an operation is extremely inconvenient and increases the risk of failure. Therefore, the existing dual-mixing syringe cannot switch between the spray type and the mirror type.
  • the nozzle can be replaced during use to solve the problem of nozzle clogging after the pause, but the lenticular type double-mixing syringe generally cannot replace the nozzle, and the doctor must be disposable. You can't stop using the full potion, or if you stop, it will clog and you can't continue to use it. Therefore, it is urgent to design a cavity type nozzle (long nozzle) that can be replaced at any time during use.
  • the present invention has been made based on the above-mentioned problems to be solved in the prior art.
  • An object of the present invention is to provide a dual-purpose double-mixing syringe connecting member, which can be connected to a long nozzle or a short nozzle, so that the spray type can be switched conveniently and quickly. And cavity mirror type two modes of use.
  • Another object of the present invention is to provide a long nozzle for a double mixing syringe which can be easily docked with each other with the above-mentioned double mixing syringe connector.
  • Still another object of the present invention is to provide a double mixing syringe comprising the above-described double mixing syringe connecting member and/or the double mixing syringe long nozzle.
  • the present invention adopts the following technical solutions.
  • the present invention provides a connector for a double mixing syringe, the connector including a connector body portion, a connector outlet joint projecting from the connector body portion toward the outlet side, and the connector body from the connector body a connector inlet joint projecting toward the inlet side, the connector outlet joint being for assembly with a short nozzle or a long nozzle, the connector inlet joint being for assembly with a single cylinder syringe,
  • first liquid outlet portion through which the first liquid from one of the single cylinder injectors flows and a second liquid outlet through which the second liquid from the other of the single cylinder injectors flows at the connector outlet joint
  • the portions are arranged side by side in a manner that is not in communication with each other, and the first liquid outlet portion extends closer to the outlet side than the second liquid outlet portion such that an end face of the first liquid outlet portion on the outlet side is longer than the second portion
  • the end face on the outlet side of the liquid outlet portion is on the outlet side, so that the connector outlet joint forms an outlet step structure.
  • the outer peripheral surface of the connector outlet joint is formed with an external thread portion such that the connector outlet joint constitutes a male luer joint structure; and/or
  • the connector inlet joint constitutes a female luer fitting structure for assembly with the single barrel syringe.
  • the end face of the external thread portion is flush with the end face of the second liquid outlet portion on the outlet side.
  • the externally threaded portion is a double-ended threaded portion.
  • the outer peripheral surface of the connector outlet joint is formed with a first recess for mounting an annular first seal ring.
  • the connecting member further includes a first diverting portion shared by the first liquid outlet portion and the second liquid outlet portion, a flow path of the first liquid outlet portion and a second liquid outlet portion The flow paths are separated by the first shunt portion.
  • the first flow dividing portion extends to be flush with an end surface on the outlet side of the first liquid outlet portion.
  • the end face on the outlet side of the first liquid outlet portion and the end face on the outlet side of the first branching portion together form a second groove for mounting an annular second seal ring.
  • the cross-sectional shape of the first liquid inlet portion and the cross-sectional shape of the second liquid inlet portion are both circular; and/or
  • the cross-sectional shape of the first liquid outlet portion and the cross-sectional shape of the second liquid outlet portion are both semicircular.
  • a distance between an end surface of the outlet side of the first liquid outlet portion and an end surface of the outlet side of the second liquid outlet portion is 0.5 mm to 20 mm.
  • the connecting member includes a first liquid delivery line and a second liquid delivery line extending inside the connector body portion,
  • the first liquid delivery conduit extends from the connector body portion to the inlet a side convex portion constituting the first liquid inlet portion, and a portion of the second liquid delivery line protruding from the connector main body portion toward the outlet side constitutes the second liquid outlet portion, the second A portion of the liquid delivery line that protrudes from the connector body portion toward the inlet side constitutes the second liquid inlet portion, and
  • the first liquid delivery line and the second liquid delivery line from the first liquid inlet portion and the second liquid inlet portion toward the first liquid outlet portion and the second liquid outlet portion Extend in a way that gradually approaches each other.
  • the second liquid inlet portion is disposed to be spaced apart from the first liquid inlet portion by a predetermined distance.
  • the connecting member includes a latching portion extending from the connector body portion toward the outlet side, the latching portion including a linearly extending latching arm portion and a distance disposed from the latching arm portion a snap protrusion of the free end of the connector body portion.
  • the present invention also provides a long spray head for a double mixing syringe, the long spray head including a first inlet portion and a second inlet portion arranged side by side with each other, the second inlet portion extending to be longer than the first
  • the inlet portion is on the inlet side such that the end surface of the inlet side of the second inlet portion is closer to the inlet side than the end surface of the inlet portion of the first inlet portion, so that the long nozzle is formed for use in any of the above aspects.
  • the outlet step structure of the connector outlet joint of the joint for the double mixing syringe described in the technical solution matches the inlet step structure, so that the long nozzle can be assembled with the connector outlet joint of the connector and receive the connection from the connection Piece of liquid.
  • the long spray head comprises a long spray head inlet joint
  • the long spray head inlet joint comprises a long spray head inlet portion and a long spray head inlet sleeved at the inlet of the long spray head in a manner rotatable relative to the long spray head inlet portion a sleeve
  • the long nozzle inlet portion includes the first inlet portion and the second inlet portion such that the long nozzle inlet portion forms the inlet step structure.
  • the end face of the inlet side of the first inlet portion is provided with a second sealing ring
  • the second seal ring abuts an end surface provided on an outlet side of the first liquid outlet portion and the first shunt a second groove of the end face of the outlet side.
  • the long nozzle inlet portion further includes a second diverting portion for separating a flow path of the first inlet portion and a flow path of the second inlet portion, and an inlet side of the second diverting portion The end surface is flush with the end surface of the inlet side of the first inlet portion.
  • the long nozzle inlet portion sleeve has a cylindrical shape and is formed with an internal thread portion that cooperates with an externally threaded portion of the connector outlet joint such that the long nozzle inlet joint is configured to be connected to the connector outlet
  • the female luer joint structure of the joint is configured to be connected to the connector outlet.
  • the outer peripheral surface of the long nozzle inlet portion is further formed with a sealing projection that protrudes annularly toward the long nozzle inlet portion sleeve and abuts against the long nozzle inlet portion sleeve.
  • the long nozzle further comprises:
  • a sheath having a first flow path and a second flow path spaced apart from each other and an inlet side end of the sheath fixed to the long nozzle inlet portion such that the first a first-class road communicating with a flow path of the first inlet portion and the second flow path communicating with a flow path of the second inlet portion;
  • a nozzle mounted to an end of the outlet side of the sheath tube for the liquid flowing through the sheath tube to be mixed at the nozzle and ejected from the nozzle.
  • the inside of the sheath tube is further formed with a molding cavity which is spaced apart from the first flow path and the second flow path, and the shaping cavity accommodates a line for molding the sheath tube
  • the body is shaped to enable the sheath to bend and maintain a predetermined shape.
  • the linear molding body includes a linear molding body and a flat positioning portion provided at one end of the linear molding body and extending from an end surface of the inlet side of the sheath, the positioning portion Fixed to the entrance of the long nozzle.
  • the positioning portion is embedded in the second diverting portion of the long nozzle inlet portion.
  • a length of the positioning portion in a cross section in a radial direction of the linear molding body is larger than a diameter of the linear molding body, and the positioning portion is in the linear molding body
  • the width in the cross section in the radial direction is smaller than the diameter of the main body of the linear shaped body.
  • the linear shaped body is a wire.
  • a cross-sectional shape of the first flow path and a cross-sectional shape of the second flow path are both circular arc shapes and relative to a geometric center of the cross section Centered symmetric.
  • the axial centerline of the modeling channel coincides with the axial centerline of the sheath.
  • the sheath is made of soft plastic or rubber.
  • the long nozzle inlet portion is integrally formed with the sheath.
  • the nozzle includes a nozzle body and a spiral speed increasing member, and the spiral speed increasing member is housed in the nozzle body, and the nozzle body and the spiral speed increasing member collectively form a flow passage penetrating in the axial direction
  • the flow path includes:
  • a pressure chamber in which at least two swirling acceleration passages extending in a spiral shape are formed to enable the liquid flowing into the at least two swirling acceleration passages to form a swirling flow and accelerate;
  • a laminar flow channel comprising a converging portion and at least three arcuate branch channels extending in a scattering shape from the converging portion toward a radially outer side, the converging portion having a diameter smaller than a diameter of the pressure chamber,
  • the converging portion communicates with the pressure chamber through the at least three arcuate branch passages, and the liquid from the pressure chamber can be further accelerated into the converging portion via the at least three arcuate branch passages to form a vortex;
  • An axial cavity having a diameter smaller than a diameter of the pressure chamber, the axial cavity being in direct communication with the converging portion;
  • a spray chamber having a diameter smaller than a diameter of the axial chamber, the spray chamber being in direct communication with the axial chamber, the liquid from the axial chamber being able to flow into the spray chamber and from the chamber
  • the injection chamber is ejected.
  • the at least three arcuate branch passages are located at the same position in the axial direction and overlap the converging portion in the axial direction.
  • each of the arcuate branch passages gradually decreases from one end of each of the arcuate branch passages communicating with the pressure chamber toward the other end communicating with the converging portion.
  • each of the one ends is evenly distributed in the circumferential direction, and each of the other ends is evenly distributed in the circumferential direction.
  • each of the arcuate branch channels are tangent to the side walls forming the pressure chamber;
  • an outer side wall forming each of the arcuate branch passages is tangent to a side wall forming the converging portion.
  • the spiral speed increasing member is received in the pressure chamber and comprises:
  • a spiral speed increasing member main body having a cylindrical shape extending along the axial direction, an axial end surface of the spiral speed increasing member body being pressed against an axial end surface of the pressure chamber;
  • the axial starting point and/or the end point of each of the externally threaded portions is located between the two end faces of the helical speed increasing member body in the axial direction.
  • a concave portion for forming the converging portion is formed at the end surface of the pressure chamber of the nozzle body and a diameter of the spiral speed increasing member body is larger than a diameter of the converging portion, such that The spiral speed increasing member body is pressed against the end surface.
  • the nozzle body further includes a mounting cavity for engaging with other components, the mounting cavity being in communication with the pressure chamber and located on an axial side of the pressure chamber.
  • the diameter of the mounting cavity is smaller than the diameter of the sheath such that the sheath is assembled with the nozzle body in an interference fit.
  • the flow path further includes a spray hole portion that communicates with the spray chamber, and a cross-sectional area of the spray hole portion gradually increases from the spray chamber.
  • the ratio of the diameter of the injection chamber to the diameter of the axial cavity ranges from 1:4 to 2:3, and/or
  • the diameter of the converging portion of the laminar flow channel is equal to the diameter of the axial cavity, and the dimension of the laminar flow channel in the axial direction and the dimension of the axial cavity in the axial direction
  • the ratio is 1:1.
  • the present invention also provides a double mixing syringe comprising:
  • the short spray head includes a nozzle body and a spiral speed increasing member housed in the nozzle body,
  • the nozzle body is the nozzle body described in any one of the above aspects, and is formed with an internal thread portion that cooperates with an external thread portion of the connector outlet joint of the connector, and
  • the spiral speed increasing member is the spiral speed increasing member according to any one of the above technical solutions.
  • the holder has a T-shaped structure, and the holder includes a lateral portion extending in a lateral direction and a longitudinal portion extending longitudinally from a substantially central portion in a lateral direction of the lateral portion, the lateral portion forming There are two mounting holes arranged in the lateral direction, and the two single-tube syringes are respectively inserted into the two mounting holes and mounted to the two mounting holes.
  • the single-cylinder injector includes a liquid storage portion and a push-pull rod capable of performing piston movement in the liquid storage portion, the liquid storage portion including a cylindrical liquid storage portion main body and a main body disposed on the liquid storage portion The outlet portion and the flange portion of the liquid storage portion,
  • the liquid outlet outlet portion is assembled with the connector inlet joint of the connecting member
  • the flange portion abuts against the lateral portion.
  • the lateral portion further includes at least two limiting portions disposed on two lateral sides of each of the mounting holes, the limiting portion being engaged with the flange portion, so that the single cylinder syringe is fixed In the holder.
  • the distance between the limiting portion and the central axis of the corresponding mounting hole is smaller than the maximum distance between the outer contour of the flange portion and the central axis.
  • the outer contour of the flange portion is an oblong shape, and a straight portion of the outer contour of the flange portion is engaged with the limiting portion.
  • the reservoir outlet portion forms a male luer fitting structure that mates with the female luer fitting structure of the connector inlet joint of the connector.
  • the two longitudinal portions extend opposite to each other and the free ends of the two longitudinal portions away from the lateral portion form longitudinal projections that protrude toward each other such that the longitudinal projections are
  • the latching portion of the connecting member is engaged with the engaging portion to fix the relative position of the fixing bracket and the connecting member at least in the longitudinal direction.
  • the double mixing syringe further includes a push-pull rod connecting plate, and the push-pull rod connecting plate is mounted on the operating portion of the push-pull rod of the two single-cylinder injectors such that the operating portion of the push-pull rod is always aligned and linked .
  • the single barrel syringe is a single barrel syringe pre-packaged with liquid, the single barrel syringe having identification information corresponding to the encapsulated liquid.
  • the inlet step structure of the long nozzle inlet portion of the long nozzle cooperates with the outlet step structure of the connector outlet joint of the connector, such that the first inlet portion of the elongated nozzle inlet portion and the connector The first liquid outlet portion of the outlet fitting is accurately abutted and the second inlet portion of the long nozzle inlet portion is accurately docked with the second liquid outlet portion of the connector outlet fitting.
  • the present invention provides a novel joint for a double mixing syringe, a novel long nozzle for a double mixing syringe, and a double mixing syringe including the connecting member and/or the long nozzle.
  • the connecting member for the double mixing syringe of the invention can be used for both the spray type and the mirror type, and the two use modes can be quickly switched only by replacing different nozzles, and the connector can be directly matched with the short nozzle.
  • the spray type double mixing syringe can also be combined with the long mixing nozzle of the double mixing syringe of the present invention to form a mirror type double mixing syringe; in addition, the connector outlet joint of the connecting member forms an outlet step structure, correspondingly the above double
  • the long nozzle inlet portion of the long nozzle for the hybrid syringe forms an inlet step structure corresponding to the outlet step structure of the connector outlet joint, which enables the double mixing syringe connector and the double mixing syringe to be realized in a simple manner with the long nozzle Accurate docking to avoid premature mixing of the liquid due to the misalignment of the connection between the connector and the long nozzle.
  • FIG. 1a is a schematic structural view of a double mixing syringe according to a first embodiment of the present invention
  • FIG. 1b is an exploded perspective view of the double mixing syringe of FIG. 1a.
  • Figure 2a is a cross-sectional view of the short spray head of the double mixing syringe of Figure 1a;
  • Figure 2b is a partial perspective perspective view of the short spray head of Figure 2a.
  • Figure 3a is a perspective view of the helical speed increasing member of the short spray head of Figure 2a;
  • Figure 3b is a front elevational view of the helical speed increasing member of the short spray head of Figure 2a.
  • FIG. 4a, 4b, and 4c are explanatory views for explaining the pressure chamber and the swirling acceleration passage of the short head in Fig. 2a.
  • 5a, 5b, 5c, and 5d are explanatory views for explaining the ejection chamber, the axial center chamber, and the laminar flow path of the short head in Fig. 2a.
  • Figure 6a is a perspective view of the connector of the double mixing syringe of Figure 1a;
  • Figure 6b is another perspective view of the connector of Figure 6a.
  • Fig. 7a is a schematic cross-sectional view of the connector of Fig. 6a; and Fig. 7b is an explanatory view for explaining the flow state of the connector of the two liquids in Fig. 6a.
  • Figure 8 is a schematic view of the structure of the single barrel syringe of the double mixing syringe of Figure 1a.
  • Figure 9 is a schematic view showing the structure of the holder of the double mixing syringe of Figure 1a.
  • 10a to 10c are explanatory views for explaining the assembly of the single cylinder syringe of Fig. 8 assembled in Fig. 9.
  • 11a to 11c are explanatory views for explaining an assembly process of the double mixing syringe of Fig. 1a.
  • Figure 12 is an exploded perspective view of a double mixing syringe in accordance with a second embodiment of the present invention.
  • Figure 13 is a schematic view showing the structure of the long nozzle of the double mixing syringe of Figure 12.
  • Figure 14a is a partial structural cross-sectional view of the long nozzle of Figure 13;
  • Figure 14b is a schematic view of the structure of Figure 14a after the long nozzle inlet sleeve is removed;
  • Figure 14c is the long nozzle inlet sleeve of Figure 14a A schematic cross-sectional view.
  • Figure 15a is a cross-sectional view showing another partial structure of the long head in Figure 13;
  • Figure 15b is a cross-sectional view showing the nozzle of the long head in Figure 13.
  • Figure 16a is a partial structural view of the sheath of the long nozzle of Figure 13;
  • Figure 16b is a top plan view of the sheath of Figure 16a.
  • Figure 17a is a schematic view showing the structure of the linear shaped body of Figure 13;
  • Figure 17b is a partial structural view of the linear shaped body of Figure 17a;
  • Figure 17c is the sheath of Figure 17b assembled with the sheath of Figure 16a.
  • FIG. 17d is an explanatory view for explaining the fixing of the positioning portion and the second branching portion of the linear shaped body in FIG. 17a.
  • Fig. 18a is a schematic view showing a state before the unfolded sheath of the long head in Fig. 16a;
  • Fig. 18b is a view showing a state after bending of the sheath of the long head in Fig. 16a.
  • Fig. 19 is an explanatory view for explaining an assembly process of the connecting member and the long head of the double mixing syringe of Fig. 12.
  • longitudinal direction means the longitudinal direction of the double mixing syringe according to the present invention (left-right direction in Fig. 1a)
  • lateral direction means the width of the double mixing syringe according to the present invention.
  • outlet side means the downstream side of the flow direction of the liquid in the part (the right side in Fig. 1a).
  • the double mixing syringe according to the first embodiment of the present invention comprises a short nozzle (ultra-low pressure swirl atomizing nozzle) 1, a connecting member 2, two single-tube injectors 3, and a fixing frame 4. And push-pull rod connection plate 5.
  • the short spray head 1 is mounted to the connecting member 2 and communicates with the liquid outlet of the connecting member 2.
  • the liquid inlet of the connector 2 communicates with the liquid outlets of the two single-cylinder injectors 3 such that both of the single-cylinder injectors 3 are in communication with the short nozzle 1 through the connector 2.
  • the two single-cylinder injectors 3 are arranged side by side and fixed by the holder 4 while the holder 4 is snapped together with the connector 2.
  • the push-pull rods of the two single-cylinder injectors 3 are fixed together to the push-pull rod connecting plate 5 so that the push-pull rods of the two single-cylinder injectors 3 can be interlocked.
  • the double mixing syringe of the present embodiment can realize the connection between the connecting member 2 and the short head 1, so that the double mixing syringe can realize a normal spraying function as a spray type double mixing syringe.
  • the short spray head 1 is generally cylindrical, the short spray head 1 has an axial direction, a radial direction and a circumferential direction; the axial side refers to the right side in FIG. 2a, and the other axial side refers to FIG. 2a. On the left side.
  • the short spray head 1 includes a nozzle body 11 and a spiral speed increasing member 12.
  • a flow path S and a mounting cavity M that penetrate the entire nozzle body 11 and communicate with each other in the axial direction A are formed in the nozzle body 11, wherein the flow path S flows through the liquid flowing into the short head 1, and the mounting cavity M is used for mounting in the double The liquid outlet portion of the connector 2 of the mixing syringe.
  • the flow passage S includes a pressure chamber S1, a laminar flow path S2, a shaft center chamber S3, an injection chamber S4, and a spray hole portion S5 that communicate with each other in the axial direction A from the axial side toward the other side in the axial direction, and the spiral passage is increased.
  • the speed member 12 is housed in the pressure chamber S1 and forms a first swirling acceleration passage S11 and a second swirling acceleration passage S12 with the side wall forming the pressure chamber S1.
  • the liquid flowing into the flow path S of the short spray head 1 will be in the pressure chamber S1 (the first swirl acceleration passage S11, the second swirl acceleration passage S12) ⁇ the laminar flow passage S2 ⁇ the axial center chamber S3 ⁇ the injection chamber S4 ⁇ spray
  • the hole portion S5 flows in the order and is finally ejected in the mist portion S5 in a mist state.
  • the nozzle body 11 includes a large diameter portion 111 and a small diameter portion 112, and the outer diameter of the large diameter portion 111 is larger than the outer diameter of the small diameter portion 112.
  • the mounting cavity M is formed in the large diameter portion 111, and the flow path S is formed in the small diameter portion 112.
  • the side wall forming the flow path S in the small diameter portion 112 is not excessively thick.
  • the helical speed increasing member 12 is a double-headed screw and includes a helical speed increasing member main body 121 and two externally threaded portions (a first external thread portion 122A and a second external thread). Part 122B).
  • the spiral speed increaser main body 121 has a cylindrical shape extending in the axial direction A.
  • the diameter of the spiral speed increasing member main body 121 is larger than the diameter of the following converging portion S21 (see FIG. 5b) of the laminar flow path S2 and the end surface pressure of the other side of the spiral speed increasing member main body 121 in the axial direction. Abutting the end surface on the other axial side of the pressure chamber S1 such that the converging portion S21 of the laminar flow path S2 communicates with the pressure chamber S1 only through the arcuate branch passage S22; the axial side of the spiral speed increasing member body 121 The end face protrudes slightly from the pressure chamber S1 into the mounting cavity M.
  • the spiral speed increaser main body 121 has a diameter of about 2 mm and a length in the axial direction A of about 4.6 mm.
  • first male screw portion 122A and the second male screw portion 122B protrudes outward from the outer peripheral surface of the helical speed increaser main body 121, and the external thread portions 122A, 122B of the spiral speed increasing member 12 and the pressure chamber S1 are formed.
  • the side walls are tightly fitted; further, the first external thread portion 122A and the second external thread portion 122B extend parallel to each other and spirally.
  • two swirling acceleration passages are formed between the two externally threaded portions 122A, 122B and the side wall forming the pressure chamber S1.
  • the first male screw portion 122A and the second male screw portion 122B have a screw angle of 60 degrees, a pitch of 5 mm, and a thread width of 1.4 mm.
  • the starting point and the end point of both the first male screw portion 122A and the second male screw portion 122B in the axial direction A are located between the two end faces of the spiral speed increasing member main body 121 in the axial direction A. That is, the end surface on the axial side of both the first male screw portion 122A and the second male screw portion 122B is located on the other axial side than the end surface on the axial side of the helical speed increaser main body 121. The end surface on the other axial side of both the first male screw portion 122A and the second male screw portion 122B is located on the axial side of the end surface on the other axial side of the helical speed increaser main body 121.
  • the end face on the axial side of both the first male screw portion 122A and the second male screw portion 122B is parallel to the axial one end face of the helical speed increaser body 121, and the first male screw portion 122A and the second male screw thread
  • the end surface of the other side of the portion 122B on the axial side is parallel to the end surface on the other side in the axial direction of the spiral speed increaser main body 121.
  • the distance between the end face on the axial side of both the first male screw portion 122A and the second male screw portion 122B and the end face on the axial side of the spiral speed increaser main body 121 are equal to 0.3 mm. .
  • the flow path S of the short spray head 1 receives the mixed liquid from the connecting member 2, the liquid is accelerated, pressurized, and finally sprayed in a mist state in the flow path S.
  • the flow path S penetrates the small diameter portion 112 of the short head 1 in the axial direction A, and the flow path S includes the pressure chamber S1, the laminar flow path S2, the axial center chamber S3, the ejection chamber S4, and the orifice portion S5, and the liquid
  • the flow path S flows in the order of the pressure chamber S1 ⁇ the laminar flow path S2 ⁇ the axial center chamber S3 ⁇ the injection chamber S4 ⁇ the injection hole portion S5.
  • the pressure chamber S1 has a cylindrical shape as a whole, and the end portion on the axial side of the pressure chamber S1 is in direct communication with the end portion on the other side in the axial direction of the mounting chamber M.
  • a first swirling acceleration passage S11 and a portion which are spirally extending parallel to each other are formed between the spiral speed increasing member 12 housed in the pressure chamber S1 and the side wall forming the pressure chamber S1.
  • the two-swirl acceleration passage S12 causes the liquid flowing into the pressure chamber S1 to form a swirl and accelerate through the first swirl acceleration passage S11 and the second swirl acceleration passage S12.
  • the flow rate is increased and the pressure is increased, and the liquid is accelerated before reaching the arc branching passage S22 of the laminar flow passage S2.
  • the pressure even if the initial pressure of the liquid is insufficient, allows the liquid to obtain sufficient speed and pressure after accelerating the passages S11, S12 via the swirling flow, thereby ensuring a uniform atomization effect at the time of spraying.
  • the laminar flow path S2 includes a converging portion S21 and, for example, three arcuate branch passages S22 extending in a scattering shape from the converging portion S21 toward the radially outer side.
  • the converging portion 21 has a cylindrical shape as a whole and the diameter of the converging portion S21 is smaller than the diameter of the pressure chamber S1.
  • the converging portion S21 communicates with the pressure chamber S1 through the three arcuate branch passages S22, and the liquid from the pressure chamber S1 passes through only three curved branch passages S22. The inflow into the converging portion S21 is further accelerated, and a vortex is formed at the converging portion S21.
  • the three arcuate branch passages S22 are located at the same position in the axial direction A and overlap with the converging portion S21 in the axial direction A.
  • Each of the arcuate branch passages S22 has the same arc shape and is convexly disposed toward the same side in the circumferential direction.
  • the cross-sectional area of each of the arcuate branch passages S22 gradually decreases from the end of each of the arcuate branch passages S22 communicating with the pressure chamber S1 toward the other end communicating with the converging portion S21. Each end is evenly distributed in the circumferential direction, and the other end is evenly distributed in the circumferential direction.
  • each of the arcuate branch passages S22 is tangent to the side wall forming the converging portion S21 and the side wall forming the pressure chamber S1, so that the liquid forming the swirling flow in the pressure chamber S1 can smoothly pass through the arc.
  • the branching passage S22 flows into the converging portion S21.
  • the entire laminar flow path S2 has a size in the axial direction A ranging from 0.2 mm to 1.0 mm
  • the converging portion S21 has a diameter ranging from 0.3 mm to 2.0 mm.
  • a concave portion is formed in the end surface of the nozzle body 11 where the pressure chamber S1 is formed, and the spiral speed increasing member main body 121 of the spiral speed increasing member 12 is surrounded by the concave portion to form the curved branch passage S22.
  • the diameter of the converging portion S21 of the laminar flow path S2 is equal to the diameter of the axial center chamber S3, and the dimension of the laminar flow path S2 in the axial direction A and the dimension of the axial center cavity S3 in the axial direction A
  • the ratio is 1:1
  • the axial cavity S3 has a cylindrical shape as a whole, the diameter of the axial cavity S3 is smaller than the diameter of the pressure chamber S1 and equal to the diameter of the convergence portion S21 of the laminar flow path S2, and the axial cavity S3 and the convergence portion S21 are on the axis. Connect directly to A.
  • the liquid from the pressure chamber S1 flows into the axial chamber S3 via the three curved branch passages S22 and the converging portion S21.
  • the axial cavity S3 has a diameter ranging from 0.3 mm to 2.0 mm and a dimension in the axial direction A ranging from 0.3 mm to 2.0 mm.
  • the injection chamber S4 has a cylindrical shape as a whole, the diameter of the injection chamber S4 is smaller than the diameter of the axial chamber S3, and the injection chamber S4 and the axial chamber S3 are directly connected in the axial direction A, from The liquid of the axial chamber S3 can be ejected from the ejection chamber S4.
  • the diameter of the ejection chamber S4 is 0.2 mm to 0.5 mm, and the ratio of the diameter of the ejection chamber S4 to the diameter of the axial cavity S3 ranges from 1:4 to 2:3.
  • the layer flow path S2, the axial center chamber S3, and the ejection chamber S4 having the above-described specific structure are formed into a shape as shown in Fig. 5a, so that the liquid from the pressure chamber S1 forms an eddy current acceleration through the laminar flow path S2 while passing through the layer.
  • the flow path S2, the axial cavity S3 and the ejection chamber S4 form an acceleration of the sudden change in the section, and finally the liquid is given sufficient pressure to ensure a uniform atomization effect at the time of spraying.
  • the entire injection hole portion S5 has a conical shape, and the end portion of the injection hole portion S5 on the axial side is in communication with the injection chamber S4 in the axial direction A, and the injection hole portion S5 is oriented from the injection chamber S4 toward the axial direction.
  • One side extends to the end surface on the other axial side of the short head 1, and the cross-sectional area of the orifice portion S5 gradually increases from the ejection chamber S4 toward the end surface on the other side in the axial direction of the short head 1.
  • the liquid ejected from the ejection chamber S4 can smoothly diffuse in a mist state toward the outside of the short head 1 along the orifice portion S5.
  • the mounting cavity M communicates with the pressure chamber S1 and is located at the axial side of the pressure chamber S1, and the diameter of the mounting cavity M is larger than the diameter of the pressure chamber S1.
  • an internal thread portion M2 is formed on the side wall forming the mounting cavity M, and the internal thread portion M2 is used for connection
  • the piece 2 is mounted, and the screw speed increasing member 12 can be pressed in the axial direction A by the connecting member 2, so that the spiral speed increasing member 12 is pressed tightly against the end surface on the other axial side of the pressure chamber S1.
  • the internal thread portion M2 is a double-threaded portion, so in the same case, the double-head thread portion is tightened by half the number of turns of the ordinary single-head thread portion, that is, the assembly time is saved, and the double-head thread portion is doubled.
  • an annular groove M1 for mounting a seal ring is formed on the end face on the other axial side of the mounting cavity M.
  • the annular groove M1 has a triangular cross section in the radial direction R. The annular groove M1 is used to mount a sealing ring to prevent liquid leakage in the mounting cavity M.
  • the liquid can reach a preset pressure after the liquid flows into the axial cavity S3 via the pressure chamber S1 and the laminar flow path S2.
  • the short spray head 1 of the present embodiment stabilizes the cross-sectional area of the flow path S through which the liquid flows to a small value, and ensures that the atomization parameter of the short spray head 1 is stabilized under the use conditions, thereby enabling the liquid to be stably sprayed in a mist state. Out, reduce the performance impact of the precision atomizing short nozzle 1 due to the difference in the assembly process of the parts.
  • the flow path S of the short spray head 1 forms the pressure chamber S1, the laminar flow path S2, the axial center chamber S3 and the injection chamber S4 having different cross-sectional areas and through the swirling acceleration passages S11, S12 and The arc branching passage S22 accelerates the multi-swirl of the liquid in the flow channel S, so that the flow velocity and pressure of the liquid in the flow channel S can be improved by both the sudden change of the cross section and the acceleration of the swirling flow, so that even if the initial pressure of the liquid is at an ultra-low pressure A good atomization effect can also be obtained in the state.
  • the connecting member 2 is on the upstream side of the short spray head 1 in the flow direction of the liquid and on the downstream side of the two single-cylinder injectors 3 in the flow direction of the liquid, from the two single-cylinder injectors 3
  • Two different liquids can flow in the connector 2 and ultimately be delivered to the short nozzle 1.
  • the left side in FIG. 7a is the outlet side
  • the right side in FIG. 7b is the inlet side.
  • the connector 2 includes a connector main body portion 21, a connector outlet joint 22 projecting from the connector main body portion 21 toward the outlet side, and a connection projecting from the connector main body portion 21 toward the inlet side.
  • the inlet joint 23 and the snap portion 24 are fixed to the connector inlet joint 23.
  • the inside of the connector main body portion 21 is formed with a cavity and the cavity forms an opening on both the inlet side and the outlet side, and the opening side of the connector main body portion 21 has a larger opening size than the connector main body portion.
  • the connector main body portion 21 has a substantially triangular sectional shape in a cross-sectional view taken along the longitudinal direction of the connecting member 2 (the horizontal direction in Fig. 7a) as shown in Fig. 7a.
  • a first liquid delivery line 211 and a second liquid delivery line 212 are provided in a cavity inside the connector body portion 21.
  • the first liquid delivery line 211 is independent of the second liquid delivery line 212.
  • Each of the first liquid delivery line 211 and the second liquid delivery line 212 has a curved shape extending substantially along the lateral direction (up and down direction in FIG. 7a) of the connector main body portion 21. Since the first liquid delivery line 211 and the second liquid delivery line 212 respectively extend along the lateral edges of the connector body portion 21, the first liquid delivery line 211 and the second liquid delivery line 212 are from the inlet side toward the outlet. The sides extend while being close to each other.
  • the first liquid delivery line 211 and the second liquid delivery line 212 are respectively connected to the two spaced apart single-tube injectors 3, respectively, the first liquid delivery line 211 and the second liquid delivery tube are respectively
  • the liquids L1, L2 flowing in the path 212 can flow into the short head 1 in a manner approaching each other on the outlet side of the first liquid delivery line 211 and the second liquid delivery line 212.
  • first liquid delivery line 211 is formed with a first liquid inlet portion 211I for connection to one single cylinder injector 3 and a first liquid outlet portion 211O for connection with the short nozzle 1.
  • the second liquid delivery line 212 is formed with a second liquid inlet portion 212I for connection with another single cylinder injector 3 and a second liquid outlet portion 212O for connection with the short nozzle 1.
  • the first liquid outlet portion 211O and the second liquid outlet portion 212O protrude from the opening on the outlet side of the connector main body portion 21 toward the outlet side, and the first liquid outlet portion 211O and the second liquid outlet portion 212O are adjacent
  • the manners are arranged side by side to form a connector outlet joint 22 for connection to the short spray head 1.
  • the connector outlet joint 22 has a cylindrical shape as a whole, and at the connector outlet joint 22, the first liquid outlet portion 211O extends to be closer to the outlet side than the second liquid outlet portion 212O, so that the connector outlet joint 22 forms an outlet step structure .
  • the first liquid outlet portion 211O is formed as a boss that protrudes from the end surface on the outlet side of the second liquid outlet portion 212O, and the boss protrudes from the end surface of the outlet side of the second liquid outlet portion 212O, for example. 2mm.
  • the distance between the end surface on the outlet side of the first liquid outlet portion 211O and the end surface on the outlet side of the second liquid outlet portion 212O is 0.5 mm to 20 mm.
  • the cross-sectional shape of the first liquid outlet portion 211O and the cross-sectional shape of the second liquid outlet portion 212O are both semicircular.
  • the end surface on the outlet side of the first liquid outlet portion 211O and the end surface on the outlet side of the first branching portion 223 described below collectively form a second recess 211C for mounting an annular seal ring.
  • the outer peripheral surface of the connector outlet joint 22 is formed with an external thread portion 221 as a double-headed threaded portion, so that the connector outlet joint 22 constitutes a male luer joint structure inserted into the mounting cavity M of the short head 1 and the male threaded portion 221 The internal thread portion M2 in the mounting cavity M of the short spray head 1 is engaged.
  • the end surface of the male screw portion 221 is flush with the end surface of the second liquid outlet portion 212O on the outlet side.
  • the external thread portion 221 has an outer diameter of 7 mm to 8 mm.
  • the outer peripheral surface of the connector outlet joint 22 is formed with a first groove 222 on which the first seal ring 22O is mounted, and the first groove 222 is located on the inlet side of the external thread portion 221 .
  • the joint outlet joint 22 can be sealed with the inner side wall of the nozzle body 11 of the short spray head 1 for forming the mounting cavity M, thereby preventing liquid leakage.
  • both the first liquid outlet portion 211O and the second liquid outlet portion 212O share the first diverting portion 223 such that the first liquid outlet portion 211O and the second liquid outlet portion 212O are adjacent to each other and pass through A split portion 223 is spaced apart.
  • the first liquid outlet portion 211O and the second liquid outlet portion 212O are respectively independently and in parallel, ensuring that the first liquid L1 and the second liquid L2 do not appear to be premixed in the connecting member 2 before reaching the short head 1 And react to each other to plug the flow path.
  • the first branching portion 223 extends to a position flush with the end surface on the outlet side of the first liquid outlet portion 211O.
  • the first liquid inlet portion 211I and the second liquid inlet portion 212I protrude from the opening on the inlet side of the connector main body portion 21 toward the inlet side, and the first liquid inlet portion 211I and the second liquid inlet portion 212I are in the lateral direction
  • the predetermined distance is spaced apart.
  • a liquid transfer line connecting portion 213 is provided between the portion 211I and the second liquid inlet portion 212I.
  • the cross-sectional shape of the first liquid inlet portion 211I and the cross-sectional shape of the second liquid inlet portion 212I are both circular, preferably, the inner diameter of the first liquid inlet portion 211I and the inner diameter of the second liquid inlet portion 212I. Both are 4mm to 5mm.
  • the connector inlet joint bushing 321 is engaged with the connector main body portion 21 and covers the opening on the inlet side of the connector main body portion 21.
  • Two connector inlet splice sleeves 231 are provided that are spaced apart from each other in the lateral direction. Two connector inlet joint sleeves 231 are respectively sleeved on the first liquid inlet portion 211I and the second liquid inlet portion 212I.
  • a connector inlet joint 23 mating with a single cylinder injector 3 is formed by the first liquid inlet portion 211I and the corresponding connector inlet joint sleeve 321 through the second liquid inlet portion 212I and the corresponding connector inlet joint sleeve
  • the 321 forms a connector inlet joint 23 that cooperates with another single cylinder injector 3, and each of the connector inlet joint sleeves 231 and the first liquid inlet portion 211I and the second liquid inlet portion 212I constitute a female mating with the single cylinder injector 3, respectively. Luer joint structure.
  • a connector inlet splice sleeve connection 232 is provided between the two connector inlet splice bushings 231 and the two connector inlet splice bushings 231.
  • the connector inlet splice sleeve connection 232 is used to securely attach to the base of the snap portion 24 in addition to the two connector inlet splice sleeves 231.
  • the snap portion 24 is fixed to a central position in the lateral direction of the inlet joint sleeve connecting portion 232 such that the snap portion 24 is located between the two connector inlet joint sleeves 231.
  • the latching portion 24 includes two linearly extending latching arms 241 (see FIG. 6a) and a latching projection 242 disposed on the free end of the latching arm portion 241 away from the connector inlet splice connector 232. .
  • the two snap arms 241 are spaced apart from each other at a base that is coupled to the connector inlet splice sleeve connection 232 and extend progressively adjacent to each other from the base toward the free end and abut together at the free end.
  • Each of the latching arm portions 241 is provided with a latching protrusion 242 protruding from the free end portion of the latching arm portion 241 toward both sides in a direction orthogonal to the longitudinal direction and the lateral direction, so that two The snap protrusions 242 integrally form a snap structure.
  • the double mixing syringe includes two side-by-side single-cylinder injectors 3, each of which includes a liquid storage portion 31 for storing a liquid and is capable of being carried out in the liquid storage portion 31.
  • the single-cylinder syringe 3 can be made of a transparent or translucent material such as plastic or glass, and thus the double-mixing syringe of the present embodiment can be applied to any liquid substance such as a liquid medicine, a glue liquid or the like.
  • the liquid storage portion 31 includes the liquid storage portion main body 311, the liquid storage portion outlet portion 312, and the flange portion 313.
  • the liquid storage portion main body 311 has a cylindrical shape and is used to store a liquid to be mixed.
  • the liquid storage portion outlet portion 312 extends from the end portion of the liquid storage portion main body 311 on the outlet side and constitutes a connection inlet joint bushing 231 and a first liquid inlet portion 211I and a second liquid inlet portion 212I from the joint member 2, respectively.
  • the male Luer joint structure of the female Ruer joint structure is constructed. In this way, each of the single cylinder injectors 3 can be in fluid communication with the connector 2 in a sealed manner.
  • the flange portion 313 is provided at an end portion on the inlet side of the liquid storage portion main body 311 and protrudes outward in the radial direction of the liquid storage portion main body 311, the flange portion 313 having an oblong outer peripheral contour such that the flange portion 313 The straight portion of the outer contour can cooperate with the limit portion 412 of the holder 4 to limit the single barrel injector 3.
  • one end of the push-pull rod 32 is located outside the liquid storage portion main body 311 as an operation portion, and the other end of the push-pull rod 32 protrudes into the inside of the liquid storage portion main body 311.
  • one end of the push-pull rod 32 can be piston-moved inside the reservoir body 311, so that the liquid inside the reservoir main body 311 is moved accordingly.
  • the holder 4 as a whole has a substantially T-shaped structure.
  • the holder 4 includes a lateral portion 41 and a longitudinal portion 42 that is fixedly coupled to the lateral portion 41.
  • the lateral portion 41 has a plate-like structure extending in the lateral direction.
  • Two mounting holes 411 penetrating the lateral portion 41 are formed on both sides of the portion of the lateral portion 41 that is connected to the longitudinal portion 42.
  • one mounting hole 411 corresponds to one single cylinder syringe 3, and the liquid storage portion main body 311 of the single cylinder injector 3 can pass through and be attached to the mounting hole 411.
  • the size of each of the mounting holes 411 is smaller than the size of the flange portion 313 of the single-cylinder injector 3 so that the flange portion 313 can pass through the mounting hole 411 after the single-cylinder injector 3 is attached to the mounting hole 411
  • the transverse portion 41 in particular abuts the surface of the transverse portion 41 opposite the surface of the longitudinal portion 42.
  • the lateral portion 41 is provided with a limiting portion 412 on both sides in the lateral direction of each of the mounting holes 411.
  • two laterally opposite sides of one mounting hole 411 are respectively provided with two limiting portions 412 opposed to each other.
  • the lateral distance W1 between the limiting portion 412 and the central axis of the corresponding mounting hole 411 is smaller than the flange portion.
  • the maximum distance W2 of the arcuate portion of the outer contour of 313 from its central axis of the corresponding mounting hole 411 is preferably smaller than the central portion between the straight portion of the outer contour of the flange portion 313 and the central axis of the corresponding mounting hole 411. the distance.
  • the two longitudinal portions 42 extend from a substantially central portion in the lateral direction of the lateral portion 41 toward one side in the longitudinal direction, and the two longitudinal portions 42 are opposed to each other.
  • the longitudinal end projections 421 projecting toward each other are formed at the free ends of the two longitudinal portions 42 away from the lateral portion 41.
  • the two longitudinal projections 421 together form a snap projection with the buckle portion 24 of the connecting member 2.
  • the structure of 242 fits.
  • this structure replaces the assembly method of using thread or pull ring in the prior art, the assembly is quick and simple, the product is convenient and easy to use, and the buckle assembly can also feedback the assembled sound to the operator, and the operator can Accurately determine whether the double mixing syringe is assembled.
  • the push-pull rod connecting plate 5 is used to connect the push-pull rods 32 of the two single-cylinder injectors 3 in one body, thereby enabling the push-pull rods 32 of the two single-cylinder injectors 3 to be interlocked.
  • the push-pull rod connecting plate 5 is connected to the push-pull rod 32 such that the push-pull rod 32 is always aligned.
  • the push-pull rod connecting plate 5 has a recess 51 that fixes the push-pull rod 32 of the single-cylinder injector 3.
  • the flange structure of the operating portion of the push-pull rod 32 is installed in the recess 51.
  • the push-pull rod connecting plate 5 positions the push-pull rods 32 of the two single-cylinder injectors 3 at the same position (i.e., in the same plane), so that the two single-tube syringes 3 can be discharged in equal volume, thereby achieving uniform mixing of the liquid.
  • the pushing and pulling rods 32 of the single cylinder injectors 3 can be moved by the same distance by applying thrust and pulling force on the push-pull rod connecting plate 5, so that the same amount can be extracted by pulling force or pushing out. liquid.
  • the push-pull rod connecting plate 5 has a concave portion 52 corresponding to the shape of the finger.
  • the concave portion 52 may be an arc-shaped recess, and the shape thereof may be matched with the shape of the thumb of the adult thumb and matched in size to facilitate the operator to hold. Improve operating comfort.
  • the recess 52 can also be designed as a frosted structure to enhance the anti-slip function.
  • each component short nozzle 1, connector 2, single-tube syringe 3, holder 4, and push-pull rod connecting plate 5 of the double mixing syringe according to the first embodiment of the present invention has been described above.
  • the drawings illustrate in detail the assembly process between the various components.
  • the two single-tube syringes 3 are respectively inserted into the mounting holes 411 of the holder 4, and the flange portion 313 of the single-tube syringe 3 abuts against the lateral portion 41 of the holder 4 and makes the convex portion
  • the edge portion 313 is engaged with the limiting portion 412.
  • the push-pull rod connecting plate 5 can be attached to the push-pull rods 32 of the two single-cylinder injectors 3 after or before the single-cylinder injector 3 is mounted to the holder 4.
  • the liquid reservoir outlet portion 312 of the two single-cylinder injectors 3 fixed to the holder 4 is inserted into the connector inlet joint 23 of the connector 2 so that the two achieve sealed liquid communication;
  • the latching projections 242 of the latching portions 24 of the connecting member 2 are engaged with the longitudinal projections 421 of the mounting bracket 4 such that the connecting member 2 and the mounting bracket 4 are fixed in the longitudinal direction.
  • the short nozzle 1 can be attached to the connector 2 at any time during the assembly of the connector 2 with the single-cylinder injector 3 and the holder 4 or after assembly.
  • the double mixing syringe according to the first embodiment of the present invention can be obtained by the above-described mounting process.
  • the double mixing syringe according to the second embodiment of the present invention includes a long nozzle 6, a coupling member 2, two single cylinder injectors 3, a holder 4, and a push-pull rod connecting plate 5.
  • the structure of the connecting member 2, the two single-cylinder injectors 3, the holder 4, and the push-pull rod connecting plate 5 of the double mixing syringe according to the second embodiment of the present invention is respectively mixed with the duplex according to the first embodiment of the present invention.
  • the connector 2 of the syringe, the two single-cylinder injectors 3, the holder 4, and the push-pull rod connecting plate 5 have the same structure, and the difference between the two is that the double-mixing syringe according to the second embodiment of the present invention is long.
  • the head 6 is used in place of the short head 1.
  • the double mixing syringe according to the second embodiment of the present invention can be used as a lenticular type double mixing syringe.
  • the long nozzle inlet joint 63 on the inlet side of the long spray head 6 is for assembly with the connector outlet joint 22 of the connector 2, and the liquids L1, L2 from the connector 2 will be connected via the connector outlet joint 22 It flows into the long nozzle 6 and is finally ejected by the nozzle 62 of the long nozzle 6.
  • the long nozzle 6 includes a sheath tube 61, a nozzle 62, a long nozzle inlet joint 63, and a linear molding body 64 which are assembled to each other.
  • the sheath tube 61 has a tubular shape extending linearly and is made of soft plastic or rubber.
  • the inside of the sheath tube 61 is formed with a first flow path 611, a second flow path 612, and a molding cavity 613 which extend along the axial direction of the sheath tube 61 and are spaced apart from each other.
  • the first flow path 611, the second flow path 612, and the modeling channel 613 all pass through the sheath tube 61 in the axial direction of the sheath tube 61.
  • the cross-sectional shape of the first flow path 611 and the cross-sectional shape of the second flow path 612 are both circular arc-shaped and symmetrical with respect to the geometric center of the cross-section, thus preventing During the bending of the sheath tube 61, the cross-sectional area of each of the flow paths 611, 612 is reduced due to the bending force, and is blocked.
  • the circular arc-shaped cross-sectional shape of the first flow path 611 and the second flow path 612 is center-symmetric, two tubular parallel structures are formed in the inner structure of the sheath tube 61, and have a double-layer bending ability;
  • the sheath 61 has a superior ability to maintain cross-sectional uniformity compared to the modification of the non-concentric circular section of the conventional sheath; moreover, due to the support of the molding cavity 613, on the one hand
  • the two layers of the first flow path 611 and the second flow path 612 may be superimposed to form a body structure, which enhances the deformation resistance in the sheath 61, and on the other hand, the cross section is rounded.
  • Each of the flow paths 611 and 612 can maintain the original cross-sectional area without major changes after the occurrence of the bending, thereby ensuring the effective liquid cross section of the entire sheath 61 in the first flow path 611 and the second flow path 612, thereby further ensuring The liquid passage amount of each of the flow paths 611 and 612 prevents clogging.
  • the first liquid L1 from the connecting member 2 will flow into the first flow path 611 through the long nozzle inlet joint 63 and flow to the nozzle 62 via the first flow path 611, and the second liquid L2 from the connecting member 2 will pass through The head inlet joint 63 flows into the second flow path 612 and flows to the nozzle 62 via the second flow path 612.
  • the molding channel 613 is circular.
  • the molding channel 613 is for accommodating the linear molding body 64 so that the sheath tube 61 can be bent and held in a predetermined shape.
  • the axial center line of the molding tunnel 613 coincides with the axial center line of the sheath tube 61.
  • the nozzle 62 is attached to the end portion of the sheath tube 61 on the outlet side so that the liquids L1, L2 flowing through the sheath tube 61 are mixed in the nozzle 62 and from the nozzle 62 spouted.
  • the nozzle 62 includes a nozzle body 621 and a spiral speed increasing member 622 attached to the nozzle body 621.
  • the structure of the nozzle 62 is similar to that of the short nozzle 1 described above, and the only difference is that the nozzle body 621 does not have the internal thread portion M2 of the nozzle body 11 of the short head 1 and the nozzle body in the present embodiment.
  • the radial dimensions (outer diameter and inner diameter) of 621 are the same throughout the axial length.
  • the nozzle 62 can also perform exactly the same function as the short nozzle 1.
  • the outer diameter of the end portion of the sheath tube 61 on the outlet side is smaller than the inner diameter of the nozzle body 621 of the nozzle 62, so that the sheath tube 61 and the nozzle body 621 are assembled by an interference fit.
  • the long nozzle inlet joint 63 is attached to the end portion of the sheath tube 61 on the inlet side.
  • the long nozzle inlet joint 63 is for assembly corresponding to the connector outlet joint 22 of the connector 2.
  • the long nozzle inlet joint 63 includes a long nozzle inlet portion 631 fixed to an end portion of the inlet side of the sheath tube 61 and a long nozzle inlet portion attached to the long nozzle inlet portion 631 so as to be rotatable relative to the long nozzle inlet portion 631.
  • Sleeve 632 is shown in FIGS. 14a to 15b.
  • the long nozzle inlet portion 631 includes a first inlet portion 6311, a second inlet portion 6312, and a second split portion 6313.
  • the flow path of the first inlet portion 6311 communicates with the first flow path 611 of the sheath tube 61, and the flow path and sheath of the second inlet portion 6312.
  • the second flow path 612 of the tube 61 is in communication.
  • the second inlet portion 6312 extends closer to the inlet side than the first inlet portion 6311 such that the end surface of the inlet side of the second inlet portion 6312 is located on the inlet side of the end surface of the inlet side of the first inlet portion 6311,
  • the long nozzle inlet portion 631 thus forms an inlet step structure that matches the outlet step structure of the connector outlet joint 22. That is, at the long head inlet portion 631, the first inlet portion 6311 forms a recess recessed with respect to the second inlet portion 6312.
  • the two inlet portions 6311, 6312 of the long nozzle inlet portion 631 of the long nozzle 6 and the two liquid outlet portions 211O, 212O of the connector outlet joint 22 of the connector 2 are realized by the mutual cooperation of the inlet step structure and the outlet step structure. The exact docking.
  • the second diverting portion 6313 extends to a position flush with the end surface on the inlet side of the first inlet portion 6311 and forms a second seal at the end surface on the inlet side of the first inlet portion 6311 and the end surface on the inlet side of the second diverting portion 6313.
  • the groove of the ring 6311O When the long nozzle inlet portion 631 is assembled with the connector outlet joint 22, the second seal ring 6311O is also mounted in the second recess 211C of the connector outlet joint 22.
  • the portions of the first inlet portion 6311 of the long nozzle inlet portion 631 abutting the first liquid outlet portion 211O of the connector outlet joint 22 are sealed to each other such that the first liquid L1 and the second liquid L2 are connected from the connector outlet joint 22
  • the reaction does not occur, and the liquids L1 and L2 are effectively prevented from mixing and reacting before reaching the nozzle 62 of the long nozzle 6 to cause clogging.
  • the two inlet portions 6311, 6312 of the long nozzle inlet portion 631 of the long nozzle 6 and the two liquid outlet portions 211O, 212O of the connector outlet joint 22 of the connector 2 are butted together from each other. .
  • the cross-sectional shape of the first inlet portion 6311 and the cross-sectional shape of the second inlet portion 6312 are both semicircular.
  • the outer peripheral surface of the long nozzle inlet portion 631 is also formed with an annular sealing protrusion 6314 that protrudes radially toward the long nozzle inlet portion sleeve 632, and the sealing protrusion 6314 abuts the long nozzle inlet portion sleeve 632 for Further prevent liquid leakage.
  • the frictional force of the circumferential rotation is small, thereby ensuring that the long nozzle inlet portion 631 and the long nozzle inlet portion sleeve 632 are kept smooth and labor-saving during the rotation, and the long nozzle 6 is easily disassembled and Assembly.
  • the end face on the inlet side of the first inlet portion 6311 is formed with a second seal ring 6311O that protrudes toward the inlet side and extends over the entire circumference along the circumferential direction of the first inlet portion 6311.
  • the second seal ring 6311O is integrally formed as a convex portion with the main body portion of the first inlet portion 6311.
  • the long nozzle inlet portion sleeve 632 has a substantially cylindrical shape and the long nozzle inlet portion sleeve 632 is sleeved at the long nozzle inlet so as to be rotatable relative to the long nozzle inlet portion 631. Department 631.
  • the inner diameter of the long nozzle inlet sleeve 632 decreases from the inlet side toward the outlet side and the long nozzle inlet sleeve 632 includes a sleeve body 6321, and a connector outlet joint 22 disposed in the cylindrical inner peripheral wall
  • the female thread portion 6322 is disposed substantially at the center in the axial direction of the sleeve main body 6321, and an inner diameter of the sleeve main body 6321 at the outlet flange 6323 is smaller than an outer diameter of the long head inlet portion 631.
  • the long nozzle inlet joint 63 formed by the cooperation of the long nozzle inlet portion 631 and the long nozzle inlet portion sleeve 632 constitutes a female luer joint structure that cooperates with the male luer joint structure of the connector outlet joint 22.
  • the first inlet portion 6311 of the long nozzle inlet joint 63 communicates with the first liquid outlet portion 211O of the joint outlet joint 22, and the long nozzle inlet joint
  • the second inlet portion 6312 of 63 is in communication with the second liquid outlet portion 212O of the connector outlet joint 22, and the second branch portion 6313 is abutted against the first branch portion 223 such that the long nozzle inlet joint 63 and the connector outlet are Misassembly is not caused during the assembly of the joints 22, and the first liquid L1 and the second liquid L2 do not mix at the portions where the two are assembled to block the flow passage. Even if the pressure of the liquid in the first flow path 611 and the second flow path 612 reaches 1 MPa, the first liquid L1 and the second liquid L2 do not leak.
  • the linear molding body 64 extends in a linear shape, and the linear molding body 64 includes a linear molding body that is housed in the molding cavity 613 of the sheath tube 61. 641 and a flat positioning portion 642 which is provided at an end portion of the linear shape main body 641 on the inlet side and extends from the sheath tube 61.
  • the linear shaped body 64 is a wire, and the wire is designed to have a circular cross section in order to facilitate the loading of the wire.
  • the positioning portion 642 is fitted into the second diverting portion 6313.
  • the positioning portion 642 By embedding the positioning portion 642 in the second diverting portion 6313, it is not necessary to reserve a mounting space for the positioning portion 642, and the diameter of the long nozzle inlet portion 631 can be greatly reduced to make the volume smaller and finer.
  • the user During use, the long nozzle inlet portion 631 is not blocked to obey the line of sight.
  • the entire product can be made smaller and more convenient to use.
  • the positioning portion 642 can prevent the linear shaped body 64 from rotating during the bending force, and at the same time defines the movement of the linear shaped body 64 in the axial direction, so that the linear shaped body 64 cannot be strung up and down.
  • the sheath tube 61 can be freely bent and restored in a straight line or reversely bent under the driving of the linear shaped body 64, for example, so that the sheath tube 61 maintains the two shapes shown in Figs. 18a and 18b.
  • the length W3 in the cross section of the linear shaped body 641 of the positioning portion 642 in the radial direction is larger than the diameter of the linear shaped body 641, and the diameter of the linear shaped body 641 of the positioning portion 642.
  • the length W4 in the upward cross section is smaller than the diameter of the linear molded body main body 641.
  • the two single-cylinder injectors 3 are preferably syringes pre-packaged with liquid, and the two single-cylinder injectors 3 preferably have identification information corresponding to the liquid they are loaded with.
  • the single-cylinder injector 3 can respectively load a liquid of a specified type, and a rubber cap is placed on the liquid outlet of the liquid storage portion 31 of each single-cylinder injector 3 to prevent it. The liquid flows out.
  • identification information corresponding to the liquid may be provided on each of the single-cylinder injectors 3.
  • the push-pull rods 32 of the two single-cylinder injectors 3 may use different colors.
  • the short spray head 1 provided by the invention can be well applied to the case where the initial pressure of the liquid is less than 0.1 MPa and has a good atomization effect.
  • the spiral speed increasing member 12 By adding the spiral speed increasing member 12 to the pressure chamber S1 in the short spray head 1, the flow rate of the liquid flow path S is increased, and at the same time, the laminar flow path S2 and the axial center chamber S3 are increased to increase the liquid pressure, and the fluid pressure of the injection chamber S4 is increased. It is already ten times the initial pressure, which can adapt the diameter of the injection chamber S4 to increase, reduce the risk of clogging during use, and has a good atomization effect, while reducing the processing difficulty.
  • the short nozzle 1 accelerates the liquid into the laminar flow channel S2 through the layer by simultaneously using the superposition principle of centrifugal atomization and axial atomization, using the swirling flow formed by the liquid flowing in the swirling acceleration channels S11 and S12.
  • the curved branch channel S22 of the flow channel S2 further accelerates the liquid, and finally forms a venturi water film outside the nozzle, and the water film tears in the air to form droplets, the droplets appear misty, and regularly from the nozzle portion S5 It begins to form a conical distribution, is suitable for an ultra-low pressure range of less than 0.1 MPa, has a good atomization effect, and is simple to assemble.
  • the mixing time and distance of the mixed liquid in this interval are increased, so that the two liquids have sufficient time and space. mixing. Since the swirling acceleration passages S11 and S12 increase the flow velocity and pressure of the liquid, the diameter of the ejection chamber S4 of the short nozzle 1 is relatively small, the diameter of the ejected droplets is smaller, the atomization effect is more obvious, and the liquid chemical coating layer is formed. The layer thickness is thinner. This effect allows the user to better control the thickness of the spray and save more of the mixture.
  • the connecting member 2 provided by the invention is suitable for both the spray type and the mirror type, and the two use modes can be quickly switched only by replacing the different nozzles 1, 6.
  • the connecting member 2 provided by the invention can be directly matched with the short nozzle 1 to form a spray type double mixing syringe, or can be matched with the long nozzle 6 to form a mirror type double mixing syringe, so that one filling liquid can be used for two times. Different usage patterns.
  • the connecting member 2 and the short head 1 pass through the first sealing ring 22O to realize a sealing structure between the connecting member 2 and the short head 1 to form a sealing effect to prevent leakage.
  • a sealing structure is provided between the connecting member 2 and the long head 6 at two locations.
  • the connecting member 2 and the long nozzle 6 can realize the sealing structure between the connector outlet joint 22 and the long nozzle inlet sleeve 632 through the first sealing ring 22O, thereby preventing the connection from the connector outlet joint 22 and the long nozzle inlet portion.
  • the liquid leaking out at the 631 docking position leaks through the gap between the connector outlet joint 22 and the long nozzle inlet sleeve 632.
  • the second recess 211C provided on the end surface of the first liquid outlet portion 211O of the connecting member 2 on the outlet side and the second seal ring 6311O formed on the inlet side end surface of the first inlet portion 6311 constitute a sealing structure, which can effectively
  • the flow path formed by the first liquid outlet portion 211O and the first inlet portion 6311 is separated from the flow path formed by the second liquid outlet portion 212O and the second inlet portion 6312 to ensure that the two flow paths do not communicate with each other, or are independent and parallel. status.
  • the outer peripheral surface of the long nozzle inlet portion 631 is also formed with an annular sealing protrusion 6314 protruding toward the long nozzle inlet portion sleeve 632, and the sealing protrusion 6314 abuts the long nozzle inlet portion sleeve 632 to form a sealing structure. It is for further preventing leakage of liquid leaking from the joint position of the joint outlet joint 22 and the long head inlet portion 631 from the gap between the long head inlet portion 631 and the long head inlet portion sleeve 632.
  • the outlet step structure provided by the connecting member 2 cooperates with the inlet step structure provided by the long head 6 to ensure that the thread is not tightened every time, and the position of the connecting member 2 with respect to the long nozzle 6 is not affected.
  • the long nozzle inlet portion 631 of the long nozzle 6 is not rotated by the connecting member 2 during the tightening process, and the long nozzle inlet portion sleeve 632 is rotationally tightened.
  • the nozzle 62 is located at the end of the outlet side of the long head 6 to function to mix the two liquids and the spray.
  • the two liquids are combined into one, and the same swirling flow in the nozzle 62 is accelerated by the same as that of the short nozzle 1 and the atomized droplets are ejected from the nozzle 62 to achieve thin layer spraying. effect.
  • All the parts used in the double mixing syringe provided by the invention can be made of plastic material, and there are more choices in the sterilization mode, and EO sterilization can be used, and gamma ray sterilization can be more efficient.
  • the long nozzle inlet portion 631 and the sheath tube 61 may be formed as a single piece and integrally formed, and the sheath tube 61 and the long nozzle inlet portion 631 may be fabricated by an injection molding process.
  • the following provides a preparation method for integrally forming the long nozzle inlet portion 631 and the sheath tube 61, and the preparation method comprises the following steps:

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Abstract

一种医疗器械,具体涉及一种双联混合注射器用连接件(2)、双联混合注射器用长喷头(6)及包括该连接件(2)和/或长喷头(6)的双联混合注射器。一方面,双联混合注射器用连接件(2)的连接件出口接头(22)形成出口台阶结构,双联混合注射器用长喷头(6)的长喷头入口部(631)形成与该出口台阶结构对应的入口台阶结构,使得长喷头(6)的长喷头入口部(631)能够与连接件(2)的连接件出口接头(22)以密封的方式组装并接收来自该连接件(2)的液体,从而使得连接件(2)与长喷头(6)进行适配连接;另一方面,该双联混合注射器用连接件(2)还能够与短喷头(1)进行适配连接。这样,该双联混合注射器用连接件(2)能够兼用于喷涂型和腔镜型两种使用模式,还能够使连接件(2)和长喷头(6)以简单的方式实现准确对接。

Description

双联混合注射器用连接件、双联混合注射器用长喷头及双联混合注射器 技术领域
本发明涉及医疗器械领域,具体地涉及双联混合注射器用连接件、双联混合注射器用长喷头及包括上述连接件和/或长喷头的双联混合注射器。
背景技术
在现有技术中,同一双联混合注射器不能兼用作喷涂型(安装短喷头)和腔镜型(安装长喷头),因此同一双联混合注射器不能根据需要切换使用模式。经常需要同时配置喷涂型专用双联混合注射器和腔镜型专用双联混合注射器两种产品,在使用时只能根据需要使用其中一种特定类型的双联混合注射器。这样,不仅会造成不必要的浪费,而且增加了成本。或者,使用者在需要切换双联混合注射器的使用模式时,手动地把两个单筒注射器从一种类型的双联混合注射器上拆下来,再重新组装到另一类型的双联混合注射器,这样的操作极不方便而且增加了故障风险。因此,现有的双联混合注射器无法切换喷涂型和腔镜型两种使用模式。亟需设计一种能够同时适用于喷涂型和腔镜型两种使用方式且能快速切换的双联混合注射器用连接件。
此外,在现有技术中,虽然喷涂型双联混合注射器使用方便,使用过程中可以更换喷头解决停顿后喷头堵塞的问题,但是腔镜型双联混合注射器一般不能更换喷头,要求医生必须一次性不能停顿用完全部药剂,否则一旦停顿下来,就会发生堵塞而没办法继续使用。因此,亟需设计一种能够在使用过程中随时更换的腔镜型喷头(长喷头)。
发明内容
基于上述现有技术中亟需解决的问题而做出了本发明。
本发明的一个发明目的在于提供一种两用的双联混合注射器用连接件,该双联混合注射器用连接件既可以连接长喷头,也可以连接短喷头,从而可以方便、快速地切换喷涂型和腔镜型两种使用模式。
本发明的另一个发明目的在于提供一种双联混合注射器用长喷头,其能够方便与上述双联混合注射器用连接件彼此准确对接。
本发明的又一个发明目的在于提供一种双联混合注射器,其包括具上述的双联混合注射器用连接件和/或双联混合注射器用长喷头。
为了实现上述发明目的,本发明采用如下的技术方案。
本发明提供了一种如下的双联混合注射器用连接件,所述连接件包括连接件主体部、从所述连接件主体部朝向出口侧凸出的连接件出口接头和从所述连接件主体部朝向入口侧凸出的连接件入口接头,所述连接件出口接头用于与短喷头或长喷头组装,所述连接件入口接头用于与单筒注射器组装,
在所述连接件出口接头处,供来自一个所述单筒注射器的第一液体流过的第一液体出口部与供来自另一个所述单筒注射器的第二液体流过的第二液体出口部以彼此不连通的方式并排布置,并且所述第一液体出口部延伸成比所述第二液体出口部靠出口侧,使得所述第一液体出口部的出口侧的端面比所述第二液体出口部的出口侧的端面靠出口侧,从而所述连接件出口接头形成出口台阶结构。
优选地,所述连接件出口接头的外周面形成有外螺纹部,使得所述连接件出口接头构成公鲁尔接头结构;和/或
所述连接件入口接头构成用于与所述单筒注射器组装的母鲁尔接头结构。
更优选地,所述外螺纹部的终止面与所述第二液体出口部的出口侧的端面平齐。
更优选地,所述外螺纹部为双头螺纹部。
优选地,所述连接件出口接头的外周面形成有用于安装环状的第一密封圈的第一凹槽。
优选地,所述连接件还包括所述第一液体出口部和所述第二液体出口部共用的第一分流部,所述第一液体出口部的流路和所述第二液体出口部的流路通过所述第一分流部分隔开。
更优选地,所述第一分流部延伸到与所述第一液体出口部的出口侧的端面平齐。
更优选地,所述第一液体出口部的出口侧的端面和所述第一分流部的出口侧的端面共同形成用于安装环状的第二密封圈的第二凹槽。
优选地,所述第一液体入口部的截面形状和所述第二液体入口部的截面形状均为圆形;和/或
所述第一液体出口部的截面形状和所述第二液体出口部的截面形状均为半圆形。
优选地,所述第一液体出口部的出口侧的端面与所述第二液体出口部的出口侧的端面之间的距离为0.5mm至20mm。
优选地,所述连接件包括在所述连接件主体部的内部延伸的第一液体输送管路和第二液体输送管路,
所述第一液体输送管路的从所述连接件主体部向出口侧凸出的部分构成所述第一液体出口部,所述第一液体输送管路的从所述连接件主体部向入口侧凸出的部分构成所述第一液体入口部,所述第二液体输送管路的从所述连接件主体部向出口侧凸出的部分构成所述第二液体出口部,所述第二液体输送管路的从所述连接件主体部向入口侧凸出的部分构成所述第二液体入口部,并且
所述第一液体输送管路和所述第二液体输送管路从所述第一液体入口部和所述第二液体入口部朝向所述第一液体出口部和所述第二液体出口部以彼此逐渐靠近的方式延伸。
更优选地,所述第二液体入口部以与所述第一液体入口部间隔开预定距离的方式配置。
优选地,所述连接件包括从所述连接件主体部朝向出口侧延伸出的卡扣部,所述卡扣部包括直线状延伸的卡扣臂部以及设置于所述卡扣臂部的远离所述连接件主体部的自由端部的卡扣凸起。
本发明还提供了一种如下的双联混合注射器用长喷头,所述长喷头包括彼此并排地布置的第一入口部和第二入口部,所述第二入口部延伸成比所述第一入口部靠入口侧,使得所述第二入口部的入口侧的端面比所述第一入口部的入口侧的端面靠入口侧,从而所述长喷头形成用于与以上技术方案中任意一项技术方案所述的双联混合注射器用连接件的连接件出口接头的出口台阶结构匹配的入口台阶结构,使得所述长喷头能够与所述连接件的连接件出口接头组装并接收来自所述连接件的液体。
优选地,所述长喷头包括长喷头入口接头,所述长喷头入口接头包括长喷头入口部和以能够相对于所述长喷头入口部转动的方式套设于该长喷头入口部的长喷头入口部套管,并且所述长喷头入口部包括所述第一入口部和所述第二入口部,使得所述长喷头入口部形成所述入口台阶结构。
更优选地,所述第一入口部的入口侧的端面设置有第二密封圈,并且
在所述长喷头入口部与所述连接件出口接头组装在一起的情况下,所述第二密封圈抵接于设置于所述第一液体出口部的出口侧的端面和所述第一分流部的出口侧的端面的第二凹槽。
更优选地,所述长喷头入口部还包括用于分隔所述第一入口部的流路和所述第二入口部的流路的第二分流部,所述第二分流部的入口侧的端面与所述第一入口部的入口侧的端面平齐。
更优选地,所述长喷头入口部套管具有圆筒形状并且形成有与所述连接件出口接头的外螺纹部配合的内螺纹部,使得所述长喷头入口接头构成与所述连接件出口接头配合的母鲁尔接头结构。
更优选地,所述长喷头入口部的外周面还形成有朝向所述长喷头入口部套管环状凸出且抵接于所述长喷头入口部套管的密封凸起。
更优选地,所述长喷头还包括:
鞘管,所述鞘管的内部形成有彼此分隔开的第一流路和第二流路并且所述鞘管的入口侧的端部与所述长喷头入口部固定在一起,使得所述第一流路与所述第一入口部的流路连通并且所述第二流路与所述第二入口部的流路连通;以及
喷嘴,所述喷嘴安装于所述鞘管的出口侧的端部以供流经所述鞘管的液体在该喷嘴处混合并从该喷嘴喷出。
更优选地,所述鞘管的内部还形成有与所述第一流路和所述第二流路均分隔开的造型腔道,所述造型腔道内收纳用于造型所述鞘管的线状造型体,以使得所述鞘管能够弯折并保持预定的形状。
更优选地,所述线状造型体包括线状造型体主体和设置于该线状造型体主体的一端且从所述鞘管的入口侧的端面延伸出的扁平的定位部,所述定位部固定于所述长喷头入口部。
更优选地,所述定位部嵌入所述长喷头入口部的第二分流部。
更优选地,所述定位部的在所述线状造型体主体的径向上的截面中的长度大于所述线状造型体主体的直径,并且所述定位部的在所述线状造型体主体的径向上的截面中的宽度小于所述线状造型体主体的直径。
更优选地,所述线状造型体主体为金属丝。
更优选地,在所述鞘管的沿着径向截取的截面中,所述第一流路的截面形状和所述第二流路的截面形状均为圆弧形且相对于该截面的几何中心成中心对称。
更优选地,所述造型腔道的轴向中心线与所述鞘管的轴向中心线一致。
更优选地,所述鞘管由软胶塑料或橡胶制成。
更优选地,所述长喷头入口部与所述鞘管一体成型。
更优选地,所述喷嘴包括喷嘴主体和螺旋增速件,所述螺旋增速件收纳于所述喷嘴主体,所述喷 嘴主体和所述螺旋增速件共同形成在轴向上贯通的流道,所述流道包括:
压力腔,在所述压力腔内形成螺旋状地延伸的至少两条旋流加速通道以使流入所述至少两条旋流加速通道内的液体能够形成旋流并加速;
层流道,所述层流道包括汇聚部以及从所述汇聚部朝向径向外侧呈散射状延伸的至少三条弧形分支通道,所述汇聚部的直径小于所述压力腔的直径,所述汇聚部通过所述至少三条弧形分支通道与所述压力腔连通,来自所述压力腔的所述液体能够经由所述至少三条弧形分支通道被进一步加速流入所述汇聚部以形成涡旋;
轴心腔,所述轴心腔的直径小于所述压力腔的直径,所述轴心腔与所述汇聚部直接连通;以及
喷射腔,所述喷射腔的直径小于所述轴心腔的直径,所述喷射腔与所述轴心腔直接连通,来自所述轴心腔的所述液体能够流入所述喷射腔并从所述喷射腔喷射出。
更优选地,所述至少三条弧形分支通道位于在所述轴向上的相同位置且在所述轴向上与所述汇聚部重叠。
更优选地,各所述弧形分支通道的截面面积从各所述弧形分支通道的与所述压力腔连通的一端朝向与所述汇聚部连通的另一端逐渐减小。
更优选地,各所述一端在周向上均匀分布,各所述另一端在周向上均匀分布。
更优选地,在所述一端处,形成各所述弧形分支通道的外侧壁与形成所述压力腔的侧壁相切;和/或
在所述另一端处,形成各所述弧形分支通道的外侧壁与形成所述汇聚部的侧壁相切。
更优选地,所述螺旋增速件收纳于所述压力腔并包括:
螺旋增速件主体,所述螺旋增速件主体具有沿着所述轴向延伸的圆柱形状,所述螺旋增速件主体的轴向端面压抵于所述压力腔的轴向端面;以及
多个外螺纹部,所述多个外螺纹部从所述螺旋增速件主体的外周面朝向径向外侧凸出,所述多个外螺纹部彼此平行且螺旋状地延伸以在所述多个外螺纹部和形成所述压力腔的侧壁之间形成所述旋流加速通道。
更优选地,各所述外螺纹部的轴向起点和/或终点位于所述螺旋增速件主体的轴向的两个端面之间。
更优选地,在所述喷嘴主体的所述压力腔的所述端面形成用于形成所述汇聚部的凹部并且所述螺旋增速件主体的直径大于所述汇聚部的直径,使得通过所述螺旋增速件主体压抵于所述端面。
更优选地,所述喷嘴主体还包括用于与其它组件接合的安装腔,所述安装腔与所述压力腔连通且位于所述压力腔的轴向一侧。
更优选地,所述安装腔的直径小于所述鞘管的直径,使得所述鞘管与所述喷嘴主体以过盈配合的方式组装在一起。
更优选地,所述流道还包括喷孔部,所述喷孔部与所述喷射腔连通,所述喷孔部的截面面积从所述喷射腔开始逐渐增大。
更优选地,所述喷射腔的直径与所述轴心腔的直径的比值的范围为1:4至2:3,和/或
所述层流道的汇聚部的直径与所述轴心腔的直径相等,并且所述层流道的在所述轴向上的尺寸与所述轴心腔的在所述轴向上的尺寸的比值为1:1。
本发明还提供了一种如下的双联混合注射器,所述双联混合注射器包括:
以上技术方案中任意一项技术方案所述的双联混合注射器用连接件;
与所述连接件的出口接头部连接的双联混合注射器用短喷头和/或与所述连接件的出口接头部连接的以上技术方案中任意一项技术方案所述的双联混合注射器用长喷头;
两个单筒注射器,所述两个单筒注射器与所述连接件的连接件入口接头连接;以及
固定架,所述固定架用于固定所述两个单筒注射器并与所述连接件固定在一起。
优选地,所述短喷头包括喷嘴主体和收纳于所述喷嘴主体的螺旋增速件,
所述喷嘴主体为以上技术方案中任意一项技术方案所述的喷嘴主体并且形成有与所述连接件的连接件出口接头的外螺纹部配合的内螺纹部,并且
所述螺旋增速件为以上技术方案中任意一项技术方案所述的螺旋增速件。
优选地,所述固定架具有T型结构,所述固定架包括沿着横向延伸的横向部和从所述横向部的横向上的大致中央部沿着纵向延伸的纵向部,所述横向部形成有沿着横向排列的两个安装孔,所述两个单筒注射器分别插入所述两个安装孔并且安装于所述两个安装孔。
更优选地,所述单筒注射器包括储液部以及在该储液部内能够进行活塞运动的推拉杆,所述储液 部包括筒状的储液部主体和设置于所述储液部主体的储液部出口部和凸缘部,
所述储液部出口部与所述连接件的连接件入口接头组装,
在所述单筒注射器安装于所述固定架的情况下,所述凸缘部抵接于所述横向部。
更优选地,所述横向部还包括设置于各所述安装孔的横向两侧的至少两个限位部,所述限位部卡接于所述凸缘部,使得所述单筒注射器固定于所述固定架。
更优选地,所述限位部与对应的安装孔的中心轴线之间的距离小于所述凸缘部的外轮廓与该中心轴线之间的最大距离。
更优选地,所述凸缘部的外轮廓为长圆形,所述凸缘部的外轮廓的直线部分卡接于所述限位部。
优选地,所述储液部出口部形成与所述连接件的连接件入口接头的母鲁尔接头结构配合的公鲁尔接头结构。
优选地,两个所述纵向部彼此相对地延伸并且所述两个纵向部的远离所述横向部的自由端部形成彼此相向地凸出的纵向部凸块,使得所述纵向部凸块与所述连接件的卡扣部配合卡接,以使所述固定架和所述连接件至少在纵向上的相对位置固定。
优选地,所述双联混合注射器还包括推拉杆连接板,所述推拉杆连接板安装于所述两个单筒注射器的推拉杆的操作部使得所述推拉杆的操作部始终对齐并且连动。
优选地,所述单筒注射器为预封装有液体的单筒注射器,该单筒注射器具有与所封装的液体对应的标识信息。
优选地,通过所述长喷头的长喷头入口部的入口台阶结构与所述连接件的连接件出口接头的出口台阶结构配合,使得所述长喷头入口部的第一入口部与所述连接件出口接头的第一液体出口部准确对接并且所述长喷头入口部的第二入口部与所述连接件出口接头的第二液体出口部准确对接。
通过采用上述技术方案,本发明提供了新型的双联混合注射器用连接件、新型的双联混合注射器用长喷头和包括该连接件和/或长喷头的双联混合注射器。本发明的双联混合注射器用连接件能够兼用于喷涂型和腔镜型两种使用模式,且只需通过更换不同喷头即快速切换两种使用模式,该连接件可直接与短喷头适配构成喷涂型双联混合注射器,也可与本发明的双联混合注射器用长喷头适配构成腔镜型双联混合注射器;另外,该连接件的连接件出口接头形成出口台阶结构,对应地上述双联混合注射器用长喷头的长喷头入口部形成与连接件出口接头的出口台阶结构对应的入口台阶结构,这样能够使双联混合注射器用连接件和双联混合注射器用长喷头以简单的方式实现准确对接,避免因连接件与长喷头的连接错位而造成药液提前混合的情况。
附图说明
图1a是根据本发明的第一实施方式的双联混合注射器的结构示意图;图1b是图1a中的双联混合注射器的分解示意图。
图2a是图1a中的双联混合注射器的短喷头的剖视示意图;图2b是图2a中的短喷头的局部透视立体图。
图3a是图2a中的短喷头的螺旋增速件的立体图;图3b是图2a中的短喷头的螺旋增速件的主视图。
图4a、图4b和图4c是用于说明图2a中的短喷头的压力腔及旋流加速通道的说明图。
图5a、图5b、图5c和图5d是用于说明图2a中的短喷头的喷射腔、轴心腔和层流道的说明图。
图6a是图1a中的双联混合注射器的连接件的一立体示意图;图6b是图6a中的连接件的另一立体示意图。
图7a是图6a中的连接件的剖视示意图;图7b是用于说明两种液体在图6a中的连接件的流动状态的说明图。
图8是图1a中的双联混合注射器的单筒注射器的结构示意图。
图9是图1a中的双联混合注射器的固定架的结构示意图。
图10a至图10c是用于说明图8中的单筒注射器组装于图9中的固定架的说明图。
图11a至图11c是用于说明图1a中的双联混合注射器的组装过程的说明图。
图12是根据本发明的第二实施方式的双联混合注射器的分解示意图。
图13是图12中的双联混合注射器的长喷头的结构示意图。
图14a是图13中的长喷头的一局部结构剖视图;图14b是图14a中的结构被拆除了长喷头入口部套管之后的结构示意图;图14c是图14a中的长喷头入口部套管的剖视示意图。
图15a是图13中的长喷头的另一局部结构剖视图;图15b是图13中的长喷头的喷嘴的剖视示意图。
图16a是图13中的长喷头的鞘管的局部结构示意图;图16b是图16a中的鞘管的俯视示意图。
图17a是图13中的线状造型体的结构示意图;图17b是图17a中的线状造型体的局部结构示意图;图17c是图17b中的线状造型体组装于图16a中的鞘管的结构示意图;图17d是用于说明图17a中的线状造型体的定位部与第二分流部固定的说明图。
图18a是示出图16a中的长喷头的鞘管的未弯折前的状态的示意图;图18b是示出图16a中的长喷头的鞘管的弯折后的状态的示意图。
图19是用于说明图12中的双联混合注射器的连接件和长喷头的组装过程的说明图。
附图标记说明
1短喷头 11喷嘴主体 111大径部 112小径部 12螺旋增速件 121螺旋增速件主体 122A第一外螺纹部 122B第二外螺纹部 S流道 S1压力腔 S11第一旋流加速通道 S12第二旋流加速通道 S2层流道 S21汇聚部 S22弧形分支通道 S3轴心腔 S4喷射腔 S5喷孔部 M安装腔 M1环形凹槽 M2内螺纹部 A轴向 R径向
2连接件 21连接件主体部 211第一液体输送管路 211I第一液体入口部 211O第一液体出口部 211C第二凹槽 212第二液体输送管路 212I第二液体入口部 212O第二液体出口部 213液体输送管路连接部 22连接件出口接头 221外螺纹部 222第一凹槽 223第一分流部 22O第一密封圈 23连接件入口接头 231连接件入口接头套管 232连接件入口接头套管连接部 24卡扣部 241卡扣臂部 242卡扣凸起
3单筒注射器 31储液部 311储液部主体 312储液部出口部 313凸缘部 32推拉杆
4固定架 41横向部 411安装孔 412限位部 42纵向部 421纵向部凸块
5推拉杆连接板 51凹槽 52凹部
6长喷头 61鞘管 611第一流路 612第二流路 613造型腔道 62喷嘴 621喷嘴主体 622螺旋增速件 63长喷头入口接头 631长喷头入口部 6311第一入口部 6311O第二密封圈 6312第二入口部 6313第二分流部 6314密封凸起 632长喷头入口部套管 6321套管主体 6322内螺纹部 6323出口凸缘 64线状造型体 641线状造型体主体 642定位部
L1第一液体 L2第二液体
具体实施方式
以下将结合说明书附图详细说明本发明的具体实施方式。需要说明的是,在本发明中,“纵向”是指根据本发明的双联混合注射器的长度方向(图1a中的左右方向),“横向”是指根据本发明的双联混合注射器的宽度方向(图1a中的上下方向);另外,对于根据本发明的双联混合注射器的各部件,“入口侧”是指液体在该部件中的流动方向的上游侧(图1a中的左侧),“出口侧”是指液体在该部件中的流动方向的下游侧(图1a中的右侧)。
以下将首先结合附图说明根据本发明的第一实施方式的双联混合注射器的结构。
(根据本发明的第一实施方式的双联混合注射器的结构)
如图1a和图1b所述,根据本发明的第一实施方式的双联混合注射器包括短喷头(超低压旋流雾化喷嘴)1、连接件2、两个单筒注射器3、固定架4和推拉杆连接板5。
具体地,短喷头1安装于连接件2且与连接件2的液体出口连通。连接件2的液体入口与两个单筒注射器3的液体出口连通,使得两个单筒注射器3均通过连接件2与短喷头1连通。两个单筒注射器3并排配置并且通过固定架4进行固定,同时固定架4与连接件2卡接在一起。两个单筒注射器3的推拉杆一起固定于推拉杆连接板5,使得两个单筒注射器3的推拉杆能够连动。
这样,两个单筒注射器3内的不同种类的液体通过推拉杆的推动经由连接件2流入短喷头1并最终以雾态喷射出。短喷头1与连接件2之间还能够实现密封连接,从而防止液体在短喷头1与连接件2之间漏出。因此,本实施方式的双联混合注射器能够实现连接件2与短喷头1之间的连接,从而使得该双联混合注射器能够作为喷涂型双联混合注射器实现正常的喷涂功能。
以下将结合说明书附图详细说明本实施方式的双联混合注射器的各部件的结构。
(短喷头1的结构)
在本实施方式中,短喷头1整体为筒状,短喷头1具有轴向、径向和周向;轴向一侧是指图2a中的右侧,轴向另一侧是指图2a中的左侧。
如图2a和图2b所示,短喷头1包括喷嘴主体11和螺旋增速件12。在喷嘴主体11内形成在轴向A上贯通整个喷嘴主体11且彼此连通的流道S和安装腔M,其中流道S供流入短喷头1的液体流过,安装腔M用于安装于双联混合注射器的连接件2的液体出口部。上述流道S在轴向A上从轴向一侧朝向轴向另 一侧包括彼此连通的压力腔S1、层流道S2、轴心腔S3、喷射腔S4和喷孔部S5,而螺旋增速件12收纳于压力腔S1中并与形成压力腔S1的侧壁形成第一旋流加速通道S11、第二旋流加速通道S12。这样,流入短喷头1的流道S的液体将以压力腔S1(第一旋流加速通道S11、第二旋流加速通道S12)→层流道S2→轴心腔S3→喷射腔S4→喷孔部S5的顺序流动,并最终在喷孔部S5以雾态喷出。
在本实施方式中,喷嘴主体11包括大径部111和小径部112,大径部111的外径大于小径部112的外径。上述安装腔M形成于大径部111,上述流道S形成于小径部112。这样,在安装腔M的直径大于流道S的各组成部分的最大直径的情况下,使得在小径部112中形成流道S的侧壁不会过厚。
在本实施方式中,如图3a和图3b所示,螺旋增速件12为双头螺杆并且包括螺旋增速件主体121和两个外螺纹部(第一外螺纹部122A和第二外螺纹部122B)。
螺旋增速件主体121具有沿着轴向A延伸的圆柱形状。在本实施方式中,该螺旋增速件主体121的直径大于层流道S2的下述汇聚部S21(参见图5b)的直径并且该螺旋增速件主体121的轴向另一侧的端面压抵于压力腔S1的轴向另一侧的端面,使得层流道S2的汇聚部S21与压力腔S1之间仅通过弧形分支通道S22连通;该螺旋增速件主体121的轴向一侧的端面从压力腔S1略微突出到安装腔M中。在本实施方式中,优选地,螺旋增速件主体121的直径为约2mm且在轴向A上的长度为约4.6mm。
第一外螺纹部122A和第二外螺纹部122B均从螺旋增速件主体121的外周面朝向径向外侧凸出,螺旋增速件12的各外螺纹部122A、122B与形成压力腔S1的侧壁紧密配合;进一步地,第一外螺纹部122A和第二外螺纹部122B彼此平行且螺旋状地延伸。这样,在两个外螺纹部122A、122B和形成压力腔S1的侧壁之间形成了两个旋流加速通道(第一旋流加速通道S11和第二旋流加速通道S12)。在本实施方式中,优选地,第一外螺纹部122A和第二外螺纹部122B的螺纹升角均为60度、螺距为5mm且螺牙宽度为1.4mm。
另外,第一外螺纹部122A和第二外螺纹部122B两者的在轴向A上的起点和终点均位于螺旋增速件主体121的在轴向A上的两个端面之间。也就是说,第一外螺纹部122A和第二外螺纹部122B两者的轴向一侧的终止面位于比螺旋增速件主体121的轴向一侧的端面靠轴向另一侧的位置,第一外螺纹部122A和第二外螺纹部122B两者的轴向另一侧的终止面位于比螺旋增速件主体121的轴向另一侧的端面靠轴向一侧的位置。第一外螺纹部122A和第二外螺纹部122B两者的轴向一侧的终止面与螺旋增速件主体121的轴向一侧的端面平行,第一外螺纹部122A和第二外螺纹部122B两者的轴向另一侧的终止面与螺旋增速件主体121的轴向另一侧的端面平行。在本实施方式中,优选地,第一外螺纹部122A和第二外螺纹部122B两者的轴向一侧的终止面与螺旋增速件主体121的轴向一侧的端面之间的距离和第一外螺纹部122A和第二外螺纹部122B两者的轴向另一侧的终止面与螺旋增速件主体121的轴向另一侧的端面之间的距离相等,均为0.3mm。
以下将说明短喷头1的流道S和安装腔M的具体结构。
当短喷头1的流道S接收来自连接件2的混合液体之后,液体会在流道S中进行多次加速、加压并最终以雾态喷出。如上所述,流道S在轴向A上贯通短喷头1的小径部112,流道S包括压力腔S1、层流道S2、轴心腔S3、喷射腔S4和喷孔部S5,液体在流道S中以压力腔S1→层流道S2→轴心腔S3→喷射腔S4→喷孔部S5的顺序流动。
在本实施方式中,如图4a所示,压力腔S1整体为圆柱形状,压力腔S1的轴向一侧的端部与安装腔M的轴向另一侧的端部直接连通。如图4b和图4c所示,通过收纳在压力腔S1内的螺旋增速件12与形成压力腔S1的侧壁之间形成螺旋状地延伸的彼此平行的第一旋流加速通道S11和第二旋流加速通道S12,从而使得流入压力腔S1内的液体经由第一旋流加速通道S11和第二旋流加速通道S12形成旋流并加速。
运用旋流加速通道S11、S12的惯性加速原理,液体在经过旋流加速通道S11、S12之后,流速加快、压力增大,液体在到达层流道S2的弧形分支通道S22之前已经进行加速加压,即使液体的初始压力不足,也能让液体经由旋流加速通道S11、S12之后获得足够的速度和压力,从而保证在喷射的时候达到均匀的雾化效果。
在本实施方式中,如图5b所示,层流道S2包括汇聚部S21以及从汇聚部S21朝向径向外侧呈散射状延伸的例如三条弧形分支通道S22。汇聚部21整体为圆柱形状且汇聚部S21的直径小于压力腔S1的直径,汇聚部S21通过三条弧形分支通道S22与压力腔S1连通,来自压力腔S1的液体仅经由三条弧形分支通道S22被进一步加速流入汇聚部S21,并在汇聚部S21处形成涡旋。
三条弧形分支通道S22位于在轴向A上的相同位置且与汇聚部S21在轴向A上重叠。每个弧形分支通道S22具有相同的弧形形状且朝向周向上的同一侧凸起地配置。各弧形分支通道S22的截面面积从各 弧形分支通道S22的与压力腔S1连通的一端朝向与汇聚部S21连通的另一端逐渐减小。各一端在周向上均匀分布,各另一端在周向上均匀分布。
进一步地,形成各弧形分支通道S22的外侧壁与形成汇聚部S21的侧壁和形成压力腔S1的侧壁均相切,以使得在压力腔S1内形成旋流的液体能够顺利地经由弧形分支通道S22流入汇聚部S21内。优选地,整个层流道S2在轴向A上的尺寸范围为0.2mm至1.0mm,汇聚部S21的直径范围为0.3mm至2.0mm。
为了便于制造,在喷嘴主体11的形成压力腔S1的端面形成凹部,通过螺旋增速件12的螺旋增速件主体121与该凹部包围形成弧形分支通道S22。
优选地,层流道S2的汇聚部S21的直径与轴心腔S3的直径相等,并且层流道S2的在轴向A上的尺寸与轴心腔S3的在所述轴向A上的尺寸的比值为1:1
如图5c所示,轴心腔S3整体为圆柱形状,轴心腔S3的直径小于压力腔S1的直径且等于层流道S2的汇聚部S21的直径,轴心腔S3与汇聚部S21在轴向A上直接连通。来自压力腔S1的液体经由三条弧形分支通道S22和汇聚部S21之后流入轴心腔S3。优选地,轴心腔S3的直径范围为0.3mm至2.0mm,在轴向A上的尺寸范围为0.3mm至2.0mm。
在本实施方式中,如图5d所示,喷射腔S4整体为圆柱形状,喷射腔S4的直径小于轴心腔S3的直径,喷射腔S4与轴心腔S3在轴向A上直接连通,来自轴心腔S3的液体可以从喷射腔S4喷射出。优选地,喷射腔S4的直径为0.2mm至0.5mm,喷射腔S4的直径与轴心腔S3的直径的比值的范围为1:4至2:3。
这样,通过具有上述具体结构的层流道S2、轴心腔S3和喷射腔S4形成了如图5a所示的形状,使得来自压力腔S1的液体通过层流道S2形成涡流加速的同时通过层流道S2、轴心腔S3和喷射腔S4形成截面突变的加速,最终使得液体获得足够的压力,从而保证在喷射的时候达到均匀的雾化效果。
在本实施方式中,喷孔部S5整体为圆锥形状,喷孔部S5的轴向一侧的端部与喷射腔S4在轴向A上连通,喷孔部S5从喷射腔S4朝向轴向另一侧延伸到短喷头1的轴向另一侧的端面,喷孔部S5的截面面积从喷射腔S4朝向短喷头1的轴向另一侧的端面逐渐增大。这样,从喷射腔S4喷射出的液体能够顺利地沿着喷孔部S5朝向短喷头1的外侧以雾态扩散。
进一步地,在本实施方式中,如上所述,安装腔M与压力腔S1连通且位于压力腔S1的靠轴向一侧的位置,安装腔M的直径大于压力腔S1的直径。
如图2a所示,在靠安装腔M的轴向另一侧的端部的部分处,在形成该安装腔M的侧壁上形成有内螺纹部M2,该内螺纹部M2用于与连接件2进行安装,通过连接件2能够在轴向A上压抵螺旋增速件12,使得螺旋增速件12紧密地压抵压力腔S1的轴向另一侧的端面。优选地,内螺纹部M2为双头螺纹部,因此同样的情况下双头螺纹部拧紧要比普通的单头螺纹部省一半的圈数,也就是节省装配时间,而且双头螺纹部由于双倍的螺距,能够有效减少对不准螺纹而导致拧错的问题,以下的双头螺纹部具有同样的优点。另外,在安装腔M的轴向另一侧的端面形成有用于安装密封圈的环状凹槽M1,在本实施方式中,该环状凹槽M1在径向R上的横截面为三角形。该环状凹槽M1用于安装密封圈,防止在安装腔M漏液。
通过采用上述的结构,使得液体经由压力腔S1和层流道S2在液体流入轴心腔S3之后能达到预设的压强。本实施方式的短喷头1将液体流过的流道S的截面积稳定在一个很小的数值,保证在使用条件下稳定了短喷头1的雾化参数,从而能够让液体以雾态稳定喷射出,减少因零件装配工艺的差异带来对精密雾化短喷头1的性能影响。
这样,通过采用上述的短喷头1,该短喷头1的流道S形成截面积不同的压力腔S1、层流道S2、轴心腔S3和喷射腔S4并且通过旋流加速通道S11、S12和弧形分支通道S22对流道S内的液体进行多重旋流加速,这样能够通过从截面突变和旋流加速两方面提高流道S内液体的流速和压力,使得即使液体的初始压强处于超低压的状态下也能够获得良好的雾化效果。
以上详细地说明了根据本发明的第一实施方式的双联混合注射器的短喷头1的具体结构,以下将说明该双联混合注射器的连接件2的结构。
(连接件2的结构)
在本实施方式中,连接件2处于短喷头1的在液体的流动方向上的上游侧且位于两个单筒注射器3的在液体的流动方向上的下游侧,来自两个单筒注射器3的两种不同的液体能够在连接件2中流动并最终被输送到短喷头1中。需要说明的是,图7a中的左侧是出口侧,图7b中的右侧是入口侧。
如图6a至图7b所示,连接件2包括连接件主体部21、从连接件主体部21朝向出口侧凸出的连接件出口接头22、从连接件主体部21朝向入口侧凸出的连接件入口接头23和固定于连接件入口接头23的卡扣部24。
具体地,在本实施方式中,连接件主体部21的内部形成有空腔并且该空腔在入口侧和出口侧均形成开口,连接件主体部21的入口侧的开口尺寸大于连接件主体部21的出口侧的开口尺寸。在如图7a所示的沿着连接件2的纵向(图7a中的左右方向)截取的截面图中连接件主体部21具有大致三角形的截面形状。在连接件主体部21的内部的空腔中设置第一液体输送管路211和第二液体输送管路212。
在本实施方式中,第一液体输送管路211独立于第二液体输送管路212。第一液体输送管路211和第二液体输送管路212均具有大致沿着连接件主体部21的横向(图7a中的上下方向)边缘延伸的弯曲形状。由于第一液体输送管路211与第二液体输送管路212分别沿着连接件主体部21的横向边缘延伸,因此第一液体输送管路211和第二液体输送管路212从入口侧朝向出口侧延伸的同时彼此接近。这样,在不影响第一液体输送管路211与第二液体输送管路212与间隔开的两个单筒注射器3连接的情况下,分别在第一液体输送管路211与第二液体输送管路212中流动的液体L1、L2(如图7b所示)能够在第一液体输送管路211与第二液体输送管路212的出口侧以彼此接近的方式流入短喷头1。
进一步地,第一液体输送管路211形成有用于与一个单筒注射器3连接的第一液体入口部211I和用于与短喷头1连接的第一液体出口部211O。第二液体输送管路212形成有用于与另一个单筒注射器3连接的第二液体入口部212I和用于与短喷头1连接的第二液体出口部212O。
一方面,第一液体出口部211O和第二液体出口部212O从连接件主体部21的出口侧的开口朝向出口侧凸出,并且第一液体出口部211O和第二液体出口部212O以相邻的方式并排配置以构成用于与短喷头1连接的连接件出口接头22。连接件出口接头22整体具有圆筒形状,并且在该连接件出口接头22处,第一液体出口部211O延伸成比第二液体出口部212O靠出口侧,使得连接件出口接头22形成出口台阶结构。也可以说,第一液体出口部211O形成为从第二液体出口部212O的出口侧的端面凸出的凸台,该凸台例如从所述第二液体出口部212O的出口侧的端面凸出2mm。优选地,第一液体出口部211O的出口侧的端面与第二液体出口部212O的出口侧的端面之间的距离为0.5mm至20mm。在本实施方式中,第一液体出口部211O的截面形状和第二液体出口部212O的截面形状均为半圆形。另外,第一液体出口部211O的出口侧的端面和下述的第一分流部223的出口侧的端面共同形成用于安装环状的密封圈的第二凹槽211C。
进一步地,连接件出口接头22的外周面形成有作为双头螺纹部的外螺纹部221,使得连接件出口接头22构成插入短喷头1的安装腔M的公鲁尔接头结构并且外螺纹部221与短喷头1的安装腔M内的内螺纹部M2相配合。外螺纹部221的终止面与第二液体出口部212O的出口侧的端面平齐。优选地,外螺纹部221的外径为7mm至8mm。
进一步地,连接件出口接头22的外周面形成有安装第一密封圈22O的第一凹槽222,第一凹槽222位于比外螺纹部221靠入口侧的位置。通过该第一密封圈22O能够使得连接件出口接头22与短喷头1的喷嘴主体11的用于形成安装腔M的内侧壁密封,从而防止漏液。
在连接件出口接头22中,第一液体出口部211O和第二液体出口部212O两者共用第一分流部223,使得第一液体出口部211O和第二液体出口部212O彼此相邻并且通过第一分流部223分隔开。采用这种结构使得第一液体出口部211O和第二液体出口部212O两者分别独立并行,保证第一液体L1和第二液体L2在到达短喷头1之前不会在连接件2内出现提前混合而互相反应塞住流路。进一步地,第一分流部223延伸到与第一液体出口部211O的出口侧的端面平齐的位置。
另一方面,第一液体入口部211I和第二液体入口部212I从连接件主体部21的入口侧的开口朝向入口侧凸出,并且第一液体入口部211I和第二液体入口部212I在横向上间隔开预定的距离。为了稳定第一液体入口部211I和第二液体入口部212I的这种位置关系,除了通过连接件入口接头23固定第一液体入口部211I和第二液体入口部212I之外,在第一液体入口部211I和第二液体入口部212I之间设置液体输送管路连接部213。在本实施方式中,第一液体入口部211I的截面形状和第二液体入口部212I的截面形状均为圆形,优选地,第一液体入口部211I的内径和第二液体入口部212I的内径均为4mm至5mm。
在本实施方式中,连接件入口接头套管321卡接于连接件主体部21并且覆盖连接件主体部21的入口侧的开口。设置在横向上彼此分隔开的两个连接件入口接头套管231。两个连接件入口接头套管231分别套设于第一液体入口部211I和第二液体入口部212I。这样,通过第一液体入口部211I和对应的连接件入口接头套管321形成与一个单筒注射器3配合的连接件入口接头23,通过第二液体入口部212I和对应的连接件入口接头套管321形成与另一个单筒注射器3配合的连接件入口接头23,并且各连接件入口接头套管231与第一液体入口部211I和第二液体入口部212I分别构成与单筒注射器3配合的母鲁尔接头结构。
在两个连接件入口接头套管231之间设置与两个连接件入口接头套管231均连接的连接件入口接 头套管连接部232。连接件入口接头套管连接部232除了固定两个连接件入口接头套管231之外还用于与卡扣部24的基部固定连接在一起。
在本实施方式中,卡扣部24固定于入口接头套管连接部232的在横向上的中央位置,使得卡扣部24位于两个连接件入口接头套管231之间。卡扣部24包括两个直线状延伸的卡扣臂部241(参见图6a)和设置于卡扣臂部241的远离连接件入口接头套管连接部232的自由端部的卡扣凸起242。
两个卡扣臂部241在与连接件入口接头套管连接部232连接的基部处彼此间隔开并且从该基部朝向自由端部彼此逐渐接近地延伸并在自由端部处抵接在一起。
各卡扣臂部241均设置有一个卡扣凸起242,卡扣凸起242从卡扣臂部241的自由端部朝向与纵向和横向均正交的方向上的两侧凸出,使得两个卡扣凸起242整体形成卡扣结构。
以上详细地说明了根据本发明的第一实施方式的双联混合注射器的连接件2的具体结构,以下将说明该双联混合注射器的单筒注射器3的结构。
(单筒注射器3的结构)
在本实施方式中,如图8所示,双联混合注射器包括两个并排的单筒注射器3,各单筒注射器3包括用于存储液体的储液部31以及在储液部31内能够进行活塞运动的推拉杆32。该单筒注射器3可以由塑料、玻璃等透明或半透明材料制作而成,因而本实施方式的双联混合注射器可以适用于任何液体形态的物质,例如药液、胶液等。
具体地,在本实施方式中,储液部31包括储液部主体311、储液部出口部312和凸缘部313。
该储液部主体311具有圆筒形状并用于存储待混合的液体。
储液部出口部312从储液部主体311的出口侧的端部延伸出并构成与连接件2的由连接件入口接头套管231与第一液体入口部211I和第二液体入口部212I分别构成的母鲁尔接头结构配合的公鲁尔接头结构。这样,各单筒注射器3能够与连接件2以密封的方式液体连通。
凸缘部313设置于储液部主体311的入口侧的端部并且朝向储液部主体311的径向外侧凸出,该凸缘部313具有长圆形的外周轮廓,使得凸缘部313的外轮廓的直线部分能够与固定架4的限位部412配合来对单筒注射器3进行限位。
在本实施方式中,推拉杆32的一端作为操作部位于储液部主体311的外部,推拉杆32的另一端伸入储液部主体311的内部。通过推动/拉动推拉杆32的一端能够使得推拉杆32的一端在储液部主体311的内部进行活塞运动,从而使得储液部主体311内部的液体进行相应的运动。
以上详细地说明了根据本发明的第一实施方式的双联混合注射器的单筒注射器3的具体结构,以下将说明该双联混合注射器的固定架4的结构。
(固定架4的结构)
在本实施方式中,如图9所示,固定架4整体具有大致T形结构。该固定架4包括横向部41和与横向部41固定连接的纵向部42。
具体地,在本实施方式中,横向部41具有沿着横向延伸的板状结构。
横向部41的在与纵向部42连接的部位的两侧形成有贯通该横向部41的两个安装孔411。在本实施方式中,一个安装孔411与一个单筒注射器3对应,单筒注射器3的储液部主体311能够穿过并安装于该安装孔411。进一步地,各安装孔411的尺寸小于单筒注射器3的凸缘部313的尺寸,使得在单筒注射器3安装于安装孔411之后凸缘部313不会穿过安装孔411而能够抵接于横向部41、具体地抵接于横向部41的与纵向部42相连的表面相反的表面。
横向部41在各安装孔411的横向上的两侧设置有限位部412。在本实施方式中,一个安装孔411的横向两侧分别设置有两个彼此相对的限位部412。当单筒注射器3的储液部主体311安装于该安装孔411之后,两个彼此相对的限位部412能够卡接于凸缘部313的外轮廓的直线部分以对单筒注射器3进行限位,从而防止单筒注射器3从固定架4松脱。
另外,如图10a所示,为了保证限位部412能够卡接于凸缘部313,使得限位部412与其对应的安装孔411的中心轴线之间的在横向上的距离W1小于凸缘部313的外轮廓的弧形部分与其对应的安装孔411的中心轴线的最大距离W2,优选地小于凸缘部313的外轮廓的直线部分与其对应的安装孔411的中心轴线之间的在横向上的距离。
在本实施方式中,两个纵向部42从该横向部41的横向上的大致中央部分朝向纵向上的一侧延伸,并且两个纵向部42彼此相对。在两个纵向部42的远离横向部41的自由端部形成彼此相向地凸出的纵向部凸块421,两个纵向部凸块421一起构成与连接件2的卡扣部24的卡扣凸起242配合的结构。这样,通过固定架4的纵向部凸块421与连接件2的卡扣凸起242配合,能够在纵向上使连接件2与固定架4固定在 一起。这样,防止单筒注射器3在使用过程中发生不期望的旋转并且同时还解决了组装繁琐、双联混合注射器受力容易散开的问题。另外,这种结构取代了现有技术中采用螺纹或拉环的装配方式,组装快捷简便,保证产品方便易用,并且卡扣装配还能给操作者反馈装配好的声响,通过声响操作者能准确判断双联混合注射器是否组装完成。
以上详细地说明了根据本发明的第一实施方式的双联混合注射器的固定架4的具体结构,以下将说明该双联混合注射器的推拉杆连接板5的结构。
(推拉杆连接板5的结构)
如图1、图10b和图10c所示,推拉杆连接板5用于将两个单筒注射器3的推拉杆32连接为一体,因而使得两个单筒注射器3的推拉杆32能够连动。在本实施方式中,推拉杆连接板5以使推拉杆32始终对齐的方式连接推拉杆32。
具体地,该推拉杆连接板5具有固定单筒注射器3的推拉杆32的凹槽51。当安装该推拉杆连接板5时,将推拉杆32的操作部的凸缘结构安装在该凹槽51内。推拉杆连接板5使两个单筒注射器3的推拉杆32位于同一位置(即位于同一平面),使得两个单筒注射器3能够等体积出液,从而实现均匀地混合液体。在双联混合注射器的使用过程中,可以通过在推拉杆连接板5上施加推力和拉力,使得各单筒注射器3的推拉杆32移动相同的距离,从而能够通过拉力抽取或推力推出等量的液体。
在本实施方式中,推拉杆连接板5具有与手指形状对应的凹部52,该凹部52可以为弧形凹陷,其形状可以与成年人拇指的指肚形状吻合并且大小匹配,方便操作者把持,提高操作舒适度。此外,还可以将凹部52设计为磨砂结构,增强防滑功能。
以上说明了根据本发明的第一实施方式的双联混合注射器的各部件(短喷头1、连接件2、单筒注射器3、固定架4和推拉杆连接板5)的具体结构,以下结合说明书附图来详细地说明各部件之间的组装过程。
如图10a至图10c所示,首先,将两个单筒注射器3分别插入固定架4的安装孔411,单筒注射器3的凸缘部313抵接于固定架4的横向部41并使得凸缘部313与限位部412实现卡接。这样,两个单筒注射器3与固定架4实现了稳定的连接关系。当单筒注射器3安装于固定架4之后或之前可以将推拉杆连接板5安装于两个单筒注射器3的推拉杆32。
如图11a至图11c所示,将固定于固定架4的两个单筒注射器3的储液部出口部312插入连接件2的连接件入口接头23,使得两者实现密封的液体连通;同时连接件2的卡扣部24的卡扣凸起242与固定架4的纵向部凸块421实现卡接,使得连接件2与固定架4在纵向上实现固定。在上述过程中,在连接件2与单筒注射器3和固定架4组装的过程中或者组装在一起之后可以随时使短喷头1连接于连接件2。这样,通过上述安装过程能够得到根据本发明的第一实施方式的双联混合注射器。
以上说明了根据本发明的第一实施方式的双联混合注射器的结构以及组装过程,以下将结合说明书附图说明根据本发明的第二实施方式的双联混合注射器的结构。
(根据本发明的第二实施方式的双联混合注射器的结构)
如图12所示,根据本发明的第二实施方式的双联混合注射器包括长喷头6、连接件2、两个单筒注射器3、固定架4和推拉杆连接板5。根据本发明的第二实施方式的双联混合注射器的连接件2、两个单筒注射器3、固定架4和推拉杆连接板5的结构分别与根据本发明的第一实施方式的双联混合注射器的连接件2、两个单筒注射器3、固定架4和推拉杆连接板5的结构相同,两者之间的不同之处在于根据本发明的第二实施方式的双联混合注射器采用长喷头6来代替短喷头1。这样,根据本发明的第二实施方式的双联混合注射器能够用作腔镜型双联混合注射器。
在以下的内容中仅说明两个实施方式之间的不同之处,即以下将结合说明书附图说明长喷头6的具体结构。
(长喷头6的结构)
在本实施方式中,长喷头6的入口侧的长喷头入口接头63用于与连接件2的连接件出口接头22组装在一起,来自连接件2的液体L1、L2将经由连接件出口接头22流入长喷头6,并最终由长喷头6的喷嘴62喷出。
如图13至图15b所示,长喷头6包括彼此组装在一起的鞘管61、喷嘴62、长喷头入口接头63和线状造型体64。
具体地,如图14a至图16b所示,在本实施方式中,鞘管61具有直线状延伸的管状并且由软胶塑料或橡胶制成。鞘管61的内部形成有沿着鞘管61的轴向延伸且彼此分隔开的第一流路611、第二流路 612和造型腔道613。第一流路611、第二流路612和造型腔道613均沿着鞘管61的轴向贯通鞘管61。
在鞘管61的沿着径向截取的截面中,第一流路611的截面形状和第二流路612的截面形状均为圆弧形且相对于该截面的几何中心成中心对称,这样可以防止在鞘管61弯折的过程中由于受到弯折力导致各流路611、612截面积减小而堵塞。具体地,由于第一流路611和第二流路612的圆弧形截面形状为中心对称,在鞘管61的内部结构形成两个管状的平行结构,具有双层的折弯能力;在保持截面形状一致的情况下,相比常规的鞘管的非同心圆截面的变型例,鞘管61在保持横截面一致性上具有更为优异的能力;而且,由于造型腔道613的支撑,一方面,在弯折过程中,第一流路611和第二流路612构成的两层腔道可叠加成立体的架构,增强鞘管61内的抗变形能力,另一方面,横截面呈圆弧形的各流路611、612在发生折弯后能保持住原来的截面积不会有大变动,保证整个鞘管61在第一流路611和第二流路612中有效的液体截面,从而进一步确保各流路611、612的液体通过量,防止堵塞。通过上述连接结构,使得来自连接件2的第一液体L1将通过长喷头入口接头63流入第一流路611并经由第一流路611流到喷嘴62,来自连接件2的第二液体L2将通过长喷头入口接头63流入第二流路612并经由第二流路612流到喷嘴62。
在鞘管61的沿着径向截取的截面中,造型腔道613为圆形。造型腔道613用于收纳线状造型体64,以使得鞘管61能够弯折并保持预定的形状。在本实施方式中,造型腔道613的轴向中心线与鞘管61的轴向中心线一致。
如图15a至图15b所示,在本实施方式中,喷嘴62安装于鞘管61的出口侧的端部以供流经鞘管61的液体L1、L2在该喷嘴62中混合并从该喷嘴62喷出。喷嘴62包括喷嘴主体621和安装于喷嘴主体621的螺旋增速件622。该喷嘴62的结构与上述说明的短喷头1的结构类似,两者的不同之处仅在于在本实施方式中喷嘴主体621不具有短喷头1的喷嘴主体11的内螺纹部M2而且该喷嘴主体621的径向尺寸(外径和内径)在整个轴向长度上是相同的。这样,该喷嘴62同样能够实现与短喷头1完全相同的功能。
在本实施方式中,鞘管61的出口侧的端部的外径小于喷嘴62的喷嘴主体621的内径,使得鞘管61与喷嘴主体621通过过盈配合组装在一起。
如图14a至图15b所示,在本实施方式中,长喷头入口接头63安装于鞘管61的入口侧的端部。该长喷头入口接头63用于与连接件2的连接件出口接头22对应组装。该长喷头入口接头63包括固定于鞘管61的入口侧的端部的长喷头入口部631和以能够相对于长喷头入口部631转动的方式安装于该长喷头入口部631的长喷头入口部套管632。
进一步地,长喷头入口部631包括第一入口部6311、第二入口部6312和第二分流部6313。在长喷头入口部631固定于鞘管61的入口侧的端部的情况下,第一入口部6311的流路与鞘管61的第一流路611连通,第二入口部6312的流路与鞘管61的第二流路612连通。
更进一步地,第二入口部6312延伸成比第一入口部6311靠入口侧,使得第二入口部6312的入口侧的端面位于第一入口部6311的入口侧的端面的靠入口侧的位置,从而长喷头入口部631形成与连接件出口接头22的出口台阶结构匹配的入口台阶结构。也就是说,在该长喷头入口部631处,第一入口部6311形成相对于第二入口部6312凹陷的凹部。通过入口台阶结构和出口台阶结构的相互配合实现长喷头6的长喷头入口部631的两个入口部6311、6312和连接件2的连接件出口接头22的两个液体出口部211O、212O之间的准确对接。
第二分流部6313延伸到与第一入口部6311的入口侧的端面平齐的位置并且在第一入口部6311的入口侧的端面和第二分流部6313的入口侧的端面形成收纳第二密封圈6311O的凹槽。当长喷头入口部631与连接件出口接头22组装在一起的情况下,第二密封圈6311O还安装于连接件出口接头22的第二凹槽211C中。这样,长喷头入口部631的第一入口部6311与连接件出口接头22的第一液体出口部211O抵接的部位彼此密封,使得在第一液体L1和第二液体L2从连接件出口接头22流入长喷头入口部631时不会混合而发生反应,有效防止液体L1、L2在到达长喷头6的喷嘴62之前提前混合反应而造成堵塞。也就是说,使长喷头6的长喷头入口部631的两个入口部6311、6312和连接件2的连接件出口接头22的两个液体出口部211O、212O之间以彼此被隔离的状态对接。
在本实施方式中,第一入口部6311的截面形状和第二入口部6312的截面形状均为半圆形。
此外,长喷头入口部631的外周面还形成有朝向长喷头入口部套管632径向凸出的环形的密封凸起6314,该密封凸起6314与长喷头入口部套管632抵接用于进一步防止液体泄漏。在该密封凸起6314处,周向转动的摩擦力较小,从而保证了长喷头入口部631和长喷头入口部套管632在转动的过程中保持顺畅省力,方便长喷头6的随时拆卸和组装。第一入口部6311的入口侧的端面形成有朝向入口侧凸出且沿着第一入口部6311的周向在整周上延伸的第二密封圈6311O。在本实施方式中,该第二密封圈6311O作为凸起部与第一入口部6311的主体部分一体地成型。
如图14c所示,在本实施方式中,长喷头入口部套管632具有大致圆筒形状并且长喷头入口部套管632以能够相对于长喷头入口部631转动的方式套设于长喷头入口部631。
该长喷头入口部套管632的内径从入口侧朝向出口侧减小并且该长喷头入口部套管632包括套管主体6321、在该圆筒形状的内周壁设置的与连接件出口接头22的外螺纹部221配合的内螺纹部6322以及在套管主体6321的出口处朝向内侧凸出的出口凸缘6323。内螺纹部6322设置于套管主体6321的轴向上的大致中央处,并且套管主体6321的在该出口凸缘6323处的内径小于长喷头入口部631的外径。
这样,长喷头入口部631和长喷头入口部套管632配合形成的长喷头入口接头63构成与连接件出口接头22的公鲁尔接头结构配合的母鲁尔接头结构。在长喷头入口接头63与连接件出口接头22组装在一起的情况下,长喷头入口接头63的第一入口部6311与连接件出口接头22的第一液体出口部211O对应连通,长喷头入口接头63的第二入口部6312与连接件出口接头22的第二液体出口部212O对应连通,并且第二分流部6313抵接于第一分流部223,使得在该长喷头入口接头63与连接件出口接头22组装在一起过程中不会发生误装配并且第一液体L1和第二液体L2不会在两者组装的部位发生混合而堵塞流道。即使第一流路611和第二流路612内的液体的压力达到1Mpa,第一液体L1和第二液体L2也不会发生泄漏。
如图17a至图17d所示,在本实施方式中,线状造型体64以直线形状的方式延伸,该线状造型体64包括收纳于鞘管61的造型腔道613的线状造型体主体641和设置于该线状造型体主体641的入口侧的端部且从鞘管61延伸出的扁平的定位部642。
在本实施方式中,线状造型体64为金属丝,为了方便装入该金属丝,将金属丝设计为具有圆形的截面。
具有圆形截面的金属丝在折弯受力的过程中,有可能因为鞘管61的硬度和金属丝的硬度差异,变形量有差异,导致金属丝形变与鞘管61的形变不一致,造成造型金属丝发生旋转。如果鞘管61在内部结构上无法阻止金属丝的旋转,鞘管61在初次折弯过程可能会出现金属丝和鞘管61分离,无法同步变形的情况,也就是无法让使用者有效控制鞘管61的折弯变形量。另外,如果是想要对鞘管61进行二次造型或者把原来已经折弯的鞘管61掰直,也会因为造型金属丝和鞘管61的分离,或造型金属丝发生旋转而无法改变已经折弯的形状。因此,在本实施方式中,定位部642嵌入第二分流部6313。通过使定位部642嵌设于第二分流部6313,不需要为定位部642预留安装空间,可大大缩小长喷头入口部631的直径,使其体积更小更精细,一方面,使用者在使用过程中不会因为长喷头入口部631过大而阻挡视线,另一方面,当鞘管61与其它组装的情况下,可使整个产品的体积更小,使用起来更便捷。另外,该定位部642还能够防止线状造型体64在折弯受力的过程中发生旋转,同时限定了线状造型体64在轴向上的运动,使得线状造型体64无法上下串动,鞘管61可在线状造型体64的驱动下随意弯折造型及复原成直线或反向弯折,例如使得鞘管61保持图18a和图18b所示的两种造型。
另外,如图17b所示,定位部642的在线状造型体主体641的径向上的截面中的长度W3大于线状造型体主体641的直径,并且定位部642的在线状造型体主体641的径向上的截面中的长度W4小于线状造型体主体641的直径。
以上对本发明的具体技术方案进行了详细地说明,但是还需要补充说明的是:
1.虽然在以上的具体实施方式中没有说明,但是可以理解两个单筒注射器3优选为预封装液体的注射器,两个单筒注射器3优选具有与其装载的液体对应的标识信息。例如,在采用预灌装的使用方式的情况下,单筒注射器3可以分别装载指定类型的液体,并在各单筒注射器3的储液部31的出液口套上橡胶帽进行封装,防止液体流出。进一步地,为了方便使用者识别不同液体,可以在各单筒注射器3上设置与液体对应的标识信息,例如两支单筒注射器3的推拉杆32可使用不同颜色。
2.虽然在以上的具体实施方式中没有详细说明,但是本发明的技术方案能够实现如下的有益效果。
2.1 关于短喷头1
本发明提供的短喷头1能够很好地应用于液体初始压强小于0.1Mpa的情况并具有良好的雾化效果。通过在短喷头1中的压力腔S1添加螺旋增速件12,提高了流道S液体的流速,同时,增加层流道S2和轴心腔S3以增大液体压力,喷射腔S4的流体压力已经是初始压力数十倍,可以将喷射腔S4的直径适应加大,减少使用过程中发生堵塞的风险,并且具有很好的雾化效果,同时降低了加工难度。
短喷头1通过同时利用离心式雾化和轴心式雾化的叠加原理,利用液体在旋流加速通道S11、S12中流动所形成的旋流加速,将液体加速流入层流道S2,通过层流道S2的弧形分支通道S22对液体进行 进一步加速,最终在喷口外形成文丘里水膜,水膜在空气中撕裂形成液滴,液滴呈现雾状,并有规律从喷孔部S5开始形成圆锥形的分布,适用于小于0.1MPa的超低压力范围,具有很好的雾化效果,并且装配简单。
由于使用螺旋增速件12之后使得混合液在旋流加速通道S11、S12中流经的路程更长,增加了混合液在这个区间的混合时间和距离,让两种液体有足够的时间和空间充分混合。由于旋流加速通道S11、S12加大了液体的流速和压力,同时短喷头1的喷射腔S4的直径比较小,喷射出的液滴的直径更小,雾化效果更明显,药液覆盖层的层厚更薄。这样的效果便于使用者更好控制喷涂的厚度,省下更多的混合液。
2.2 关于连接件2
本发明提供的连接件2同时适用于喷涂型和腔镜型两种使用模式,且只需通过更换不同喷头1、6即快速切换两种使用模式。本发明提供的连接件2可直接与短喷头1适配构成喷涂型双联混合注射器,也可与长喷头6适配构成腔镜型双联混合注射器,因此能够实现一次灌装液体可以使用两种不同使用模式。
2.2.1 关于连接件2与短喷头1或长喷头6之间的密封结构
连接件2与短喷头1通过第一密封圈22O能够实现连接件2与短喷头1之间的密封结构,从而形成密封效果防止漏液。
连接件2与长喷头6之间在两个部位设置有密封结构。第一,连接件2与长喷头6通过第一密封圈22O能够实现连接件出口接头22与长喷头入口部套管632之间的密封结构,从而防止从连接件出口接头22与长喷头入口部631对接位置处漏出的液体经由连接件出口接头22与长喷头入口部套管632之间的间隙漏出。第二,连接件2的第一液体出口部211O的出口侧的端面设置的第二凹槽211C与第一入口部6311的入口侧的端面形成的第二密封圈6311O构成密封结构,能有效把第一液体出口部211O和第一入口部6311形成的流路与第二液体出口部212O和第二入口部6312形成的流路隔离开来,保证两个流路不会互通,还是独立并行的状态。此外,长喷头入口部631的外周面还形成有朝向长喷头入口部套管632凸出的环形的密封凸起6314,该密封凸起6314与长喷头入口部套管632抵接以构成密封结构,用于进一步防止从连接件出口接头22与长喷头入口部631对接位置处漏出的液体从长喷头入口部631与长喷头入口部套管632之间的间隙泄漏。
通过以上的密封结构,使得连接件2与长喷头6之间能够实现有效的密封。
2.2.2 关于连接件2和长喷头6之间流路的准确对接
如图19所示,通过连接件2设置的出口台阶结构与长喷头6设置的入口台阶结构配合,保证每次拧紧螺纹,都不会影响连接件2的与长喷头6的准确对接的位置。在拧紧的过程中连接件2卡住长喷头6的长喷头入口部631不旋转,而长喷头入口部套管632旋转拧紧。
这样,确保了在长喷头6和连接件2连接过程中,不会因为拧紧螺纹这个动作出现连接件2中的流路与长喷头6中的流路的对接角度发生偏差,不会发生由于错位而造成药液提前在此处混合。
3.关于长喷头6
在使用过程中,两种不同类型的液体顺利进入长喷头6,流经长喷头6中的两个流路611、612后进入长喷头6的喷嘴62。喷嘴62位于长喷头6的出口侧的端部,起到混匀两种液体和喷雾的作用。当液体顺利流到喷嘴62时,两种液体合二为一,在喷嘴62中通过与短喷嘴1同样的旋流加速并从喷嘴62喷射出雾化的小液滴,以达到薄层喷涂的效果。
4.本发明提供的双联混合注射器所使用的全部零件可以采用塑料材质,在灭菌方式有更多的选择,可以使用EO灭菌,也可以更有效率的伽马射线灭菌。
5.优选地,长喷头入口部631与鞘管61可以形成为一个整体件并且一体成型,鞘管61和长喷头入口部631可通过注塑工艺制作。
以下提供一种可实现长喷头入口部631和鞘管61一体成型的制备方法,所述制备方法包括如下步骤:
S1:利用挤出模具制备具有流路611、612和造型腔道613的鞘管61;
S2:将线状造型体64预装在鞘管61的造型腔道613中,并将线状造型体64延伸出鞘管61的一端设计为扁平状从而得到定位部642;以及
S3:将已经安装了线状造型体64的鞘管61放入立式注塑模具中注塑出长喷头入口部631,即得到长喷头入口部631与鞘管61的整体件。

Claims (53)

  1. 一种双联混合注射器用连接件,所述连接件包括连接件主体部、从所述连接件主体部朝向出口侧凸出的连接件出口接头和从所述连接件主体部朝向入口侧凸出的连接件入口接头,所述连接件出口接头用于与短喷头或长喷头组装,所述连接件入口接头用于与单筒注射器组装,
    在所述连接件出口接头处,供来自一个所述单筒注射器的第一液体流过的第一液体出口部与供来自另一个所述单筒注射器的第二液体流过的第二液体出口部以彼此不连通的方式并排布置,并且所述第一液体出口部延伸成比所述第二液体出口部靠出口侧,使得所述第一液体出口部的出口侧的端面比所述第二液体出口部的出口侧的端面靠出口侧,从而所述连接件出口接头形成出口台阶结构。
  2. 根据权利要求1所述的双联混合注射器用连接件,其特征在于,
    所述连接件出口接头的外周面形成有外螺纹部,使得所述连接件出口接头构成公鲁尔接头结构;和/或
    所述连接件入口接头构成用于与所述单筒注射器组装的母鲁尔接头结构。
  3. 根据权利要求2所述的双联混合注射器用连接件,其特征在于,所述外螺纹部的终止面与所述第二液体出口部的出口侧的端面平齐。
  4. 根据权利要求2或3所述的双联混合注射器用连接件,其特征在于,所述外螺纹部为双头螺纹部。
  5. 根据权利要求1至4中任一项所述的双联混合注射器用连接件,其特征在于,所述连接件出口接头的外周面形成有用于安装环状的第一密封圈的第一凹槽。
  6. 根据权利要求1至5中任一项所述的双联混合注射器用连接件,其特征在于,所述连接件还包括所述第一液体出口部和所述第二液体出口部共用的第一分流部,所述第一液体出口部的流路和所述第二液体出口部的流路通过所述第一分流部分隔开。
  7. 根据权利要求6所述的双联混合注射器用连接件,其特征在于,所述第一分流部延伸到与所述第一液体出口部的出口侧的端面平齐。
  8. 根据权利要求7所述的双联混合注射器用连接件,其特征在于,
    所述第一液体出口部的出口侧的端面和所述第一分流部的出口侧的端面共同形成用于安装环状的第二密封圈的第二凹槽。
  9. 根据权利要求1至8中任一项所述的双联混合注射器用连接件,其特征在于,
    所述第一液体入口部的截面形状和所述第二液体入口部的截面形状均为圆形;和/或
    所述第一液体出口部的截面形状和所述第二液体出口部的截面形状均为半圆形。
  10. 根据权利要求1至9中任一项所述的双联混合注射器用连接件,其特征在于,所述第一液体出口部的出口侧的端面与所述第二液体出口部的出口侧的端面之间的距离为0.5mm至20mm。
  11. 根据权利要求1至10中任一项所述的双联混合注射器用连接件,其特征在于,所述连接件包括在所述连接件主体部的内部延伸的第一液体输送管路和第二液体输送管路,
    所述第一液体输送管路的从所述连接件主体部向出口侧凸出的部分构成所述第一液体出口部,所述第一液体输送管路的从所述连接件主体部向入口侧凸出的部分构成所述第一液体入口部,所述第二液体输送管路的从所述连接件主体部向出口侧凸出的部分构成所述第二液体出口部,所述第二液体输送管路的从所述连接件主体部向入口侧凸出的部分构成所述第二液体入口部,并且
    所述第一液体输送管路和所述第二液体输送管路从所述第一液体入口部和所述第二液体入口部朝向所述第一液体出口部和所述第二液体出口部以彼此逐渐靠近的方式延伸。
  12. 根据权利要求11所述的双联混合注射器用连接件,其特征在于,所述第二液体入口部以与所述第一液体入口部间隔开预定距离的方式配置。
  13. 根据权利要求1至12中任一项所述的双联混合注射器用连接件,其特征在于,所述连接件包括从所述连接件主体部朝向出口侧延伸出的卡扣部,所述卡扣部包括直线状延伸的卡扣臂部以及设置于所述卡扣臂部的远离所述连接件主体部的自由端部的卡扣凸起。
  14. 一种双联混合注射器用长喷头,所述长喷头包括彼此并排地布置的第一入口部和第二入口部,所述第二入口部延伸成比所述第一入口部靠入口侧,使得所述第二入口部的入口侧的端面比所述第一入口部的入口侧的端面靠入口侧,从而所述长喷头形成用于与权利要求1至13中任一项所述的双联混合注射器用连接件的连接件出口接头的出口台阶结构匹配的入口台阶结构,使得所述长喷头能够与所述连接件的连接件出口接头组装并接收来自所述连接件的液体。
  15. 根据权利要求14所述的双联混合注射器用长喷头,其特征在于,所述长喷头包括长喷头入口接头,所述长喷头入口接头包括长喷头入口部和以能够相对于所述长喷头入口部转动的方式套设于该长喷头入口部的长喷头入口部套管,并且所述长喷头入口部包括所述第一入口部和所述第二入口部, 使得所述长喷头入口部形成所述入口台阶结构。
  16. 根据权利要求15所述的双联混合注射器用长喷头,其特征在于,所述第一入口部的入口侧的端面设置有第二密封圈,并且
    在所述长喷头入口部与所述连接件出口接头组装在一起的情况下,所述第二密封圈抵接于设置于所述第一液体出口部的出口侧的端面和所述第一分流部的出口侧的端面的第二凹槽。
  17. 根据权利要求15或16所述的双联混合注射器用长喷头,其特征在于,所述长喷头入口部还包括用于分隔所述第一入口部的流路和所述第二入口部的流路的第二分流部,所述第二分流部的入口侧的端面与所述第一入口部的入口侧的端面平齐。
  18. 根据权利要求15至17中任一项所述的双联混合注射器用长喷头,其特征在于,所述长喷头入口部套管具有圆筒形状并且形成有与所述连接件出口接头的外螺纹部配合的内螺纹部,使得所述长喷头入口接头构成与所述连接件出口接头配合的母鲁尔接头结构。
  19. 根据权利要求15至18中任一项所述的双联混合注射器用长喷头,其特征在于,所述长喷头入口部的外周面还形成有朝向所述长喷头入口部套管环状凸出且抵接于所述长喷头入口部套管的密封凸起。
  20. 根据权利要求15至19中任一项所述的双联混合注射器用长喷头,其特征在于,所述长喷头还包括:
    鞘管,所述鞘管的内部形成有彼此分隔开的第一流路和第二流路并且所述鞘管的入口侧的端部与所述长喷头入口部固定在一起,使得所述第一流路与所述第一入口部的流路连通并且所述第二流路与所述第二入口部的流路连通;以及
    喷嘴,所述喷嘴安装于所述鞘管的出口侧的端部以供流经所述鞘管的液体在该喷嘴处混合并从该喷嘴喷出。
  21. 根据权利要求20所述的双联混合注射器用长喷头,其特征在于,所述鞘管的内部还形成有与所述第一流路和所述第二流路均分隔开的造型腔道,所述造型腔道内收纳用于造型所述鞘管的线状造型体,以使得所述鞘管能够弯折并保持预定的形状。
  22. 根据权利要求21所述的双联混合注射器用长喷头,其特征在于,所述线状造型体包括线状造型体主体和设置于该线状造型体主体的一端且从所述鞘管的入口侧的端面延伸出的扁平的定位部,所述定位部固定于所述长喷头入口部。
  23. 根据权利要求22所述的双联混合注射器用长喷头,其特征在于,所述定位部嵌入所述长喷头入口部的第二分流部。
  24. 根据权利要求22或23所述的双联混合注射器用长喷头,其特征在于,所述定位部的在所述线状造型体主体的径向上的截面中的长度大于所述线状造型体主体的直径,并且所述定位部的在所述线状造型体主体的径向上的截面中的宽度小于所述线状造型体主体的直径。
  25. 根据权利要求22至24中任一项所述的双联混合注射器用长喷头,其特征在于,所述线状造型体主体为金属丝。
  26. 根据权利要求22至25中任一项所述的双联混合注射器用长喷头,其特征在于,在所述鞘管的沿着径向截取的截面中,所述第一流路的截面形状和所述第二流路的截面形状均为圆弧形且相对于该截面的几何中心成中心对称。
  27. 根据权利要求22至26中任一项所述的双联混合注射器用长喷头,其特征在于,所述造型腔道的轴向中心线与所述鞘管的轴向中心线一致。
  28. 根据权利要求22至27中任一项所述的双联混合注射器用长喷头,其特征在于,所述鞘管由软胶塑料或橡胶制成。
  29. 根据权利要求22至28中任一项所述的双联混合注射器用长喷头,其特征在于,所述长喷头入口部与所述鞘管一体成型。
  30. 根据权利要求20至29中任一项所述的双联混合注射器用长喷头,其特征在于,所述喷嘴包括喷嘴主体和螺旋增速件,所述螺旋增速件收纳于所述喷嘴主体,所述喷嘴主体和所述螺旋增速件共同形成在轴向上贯通的流道,所述流道包括:
    压力腔,在所述压力腔内形成螺旋状地延伸的至少两条旋流加速通道以使流入所述至少两条旋流加速通道内的液体能够形成旋流并加速;
    层流道,所述层流道包括汇聚部以及从所述汇聚部朝向径向外侧呈散射状延伸的至少三条弧形分支通道,所述汇聚部的直径小于所述压力腔的直径,所述汇聚部通过所述至少三条弧形分支通道与所述压力腔连通,来自所述压力腔的所述液体能够经由所述至少三条弧形分支通道被进一步加速流入所 述汇聚部以形成涡旋;
    轴心腔,所述轴心腔的直径小于所述压力腔的直径,所述轴心腔与所述汇聚部直接连通;以及
    喷射腔,所述喷射腔的直径小于所述轴心腔的直径,所述喷射腔与所述轴心腔直接连通,来自所述轴心腔的所述液体能够流入所述喷射腔并从所述喷射腔喷射出。
  31. 根据权利要求30所述的双联混合注射器用长喷头,其特征在于,所述至少三条弧形分支通道位于在所述轴向上的相同位置且在所述轴向上与所述汇聚部重叠。
  32. 根据权利要求31所述的双联混合注射器用长喷头,其特征在于,各所述弧形分支通道的截面面积从各所述弧形分支通道的与所述压力腔连通的一端朝向与所述汇聚部连通的另一端逐渐减小。
  33. 根据权利要求32所述的双联混合注射器用长喷头,其特征在于,各所述一端在周向上均匀分布,各所述另一端在周向上均匀分布。
  34. 根据权利要求33所述的双联混合注射器用长喷头,其特征在于,
    在所述一端处,形成各所述弧形分支通道的外侧壁与形成所述压力腔的侧壁相切;和/或
    在所述另一端处,形成各所述弧形分支通道的外侧壁与形成所述汇聚部的侧壁相切。
  35. 根据权利要求30至34中任一项所述的双联混合注射器用长喷头,其特征在于,所述螺旋增速件收纳于所述压力腔并包括:
    螺旋增速件主体,所述螺旋增速件主体具有沿着所述轴向延伸的圆柱形状,所述螺旋增速件主体的轴向端面压抵于所述压力腔的轴向端面;以及
    多个外螺纹部,所述多个外螺纹部从所述螺旋增速件主体的外周面朝向径向外侧凸出,所述多个外螺纹部彼此平行且螺旋状地延伸以在所述多个外螺纹部和形成所述压力腔的侧壁之间形成所述旋流加速通道。
  36. 根据权利要求35所述的双联混合注射器用长喷头,其特征在于,各所述外螺纹部的轴向起点和/或终点位于所述螺旋增速件主体的轴向的两个端面之间。
  37. 根据权利要求35所述的双联混合注射器用长喷头,其特征在于,在所述喷嘴主体的所述压力腔的所述端面形成用于形成所述汇聚部的凹部并且所述螺旋增速件主体的直径大于所述汇聚部的直径,使得通过所述螺旋增速件主体压抵于所述端面。
  38. 根据权利要求35所述的双联混合注射器用长喷头,其特征在于,所述喷嘴主体还包括用于与其它组件接合的安装腔,所述安装腔与所述压力腔连通且位于所述压力腔的轴向一侧。
  39. 根据权利要求38所述的双联混合注射器用长喷头,其特征在于,所述安装腔的直径小于所述鞘管的直径,使得所述鞘管与所述喷嘴主体以过盈配合的方式组装在一起。
  40. 根据权利要求30至39中任一项所述的双联混合注射器用长喷头,其特征在于,所述流道还包括喷孔部,所述喷孔部与所述喷射腔连通,所述喷孔部的截面面积从所述喷射腔开始逐渐增大。
  41. 根据权利要求30至39中任一项所述的双联混合注射器用长喷头,其特征在于,
    所述喷射腔的直径与所述轴心腔的直径的比值的范围为1:4至2:3,和/或
    所述层流道的汇聚部的直径与所述轴心腔的直径相等,并且所述层流道的在所述轴向上的尺寸与所述轴心腔的在所述轴向上的尺寸的比值为1:1。
  42. 一种双联混合注射器,所述双联混合注射器包括:
    权利要求1至13中任一项所述的双联混合注射器用连接件;
    与所述连接件的出口接头部连接的双联混合注射器用短喷头和/或与所述连接件的出口接头部连接的权利要求14至41中任一项所述的双联混合注射器用长喷头;
    两个单筒注射器,所述两个单筒注射器与所述连接件的连接件入口接头连接;以及
    固定架,所述固定架用于固定所述两个单筒注射器并与所述连接件固定在一起。
  43. 根据权利要求42所述的双联混合注射器,其特征在于,所述短喷头包括喷嘴主体和收纳于所述喷嘴主体的螺旋增速件,
    所述喷嘴主体为权利要求30至41中任一项所述的喷嘴主体并且形成有与所述连接件的连接件出口接头的外螺纹部配合的内螺纹部,并且
    所述螺旋增速件为权利要求30至41中任一项所述的螺旋增速件。
  44. 根据权利要求42所述的双联混合注射器,其特征在于,所述固定架具有T型结构,所述固定架包括沿着横向延伸的横向部和从所述横向部的横向上的大致中央部沿着纵向延伸的纵向部,所述横向部形成有沿着横向排列的两个安装孔,所述两个单筒注射器分别插入所述两个安装孔并且安装于所述两个安装孔。
  45. 根据权利要求43或44所述的双联混合注射器,其特征在于,所述单筒注射器包括储液部以及 在该储液部内能够进行活塞运动的推拉杆,所述储液部包括筒状的储液部主体和设置于所述储液部主体的储液部出口部和凸缘部,
    所述储液部出口部与所述连接件的连接件入口接头组装,
    在所述单筒注射器安装于所述固定架的情况下,所述凸缘部抵接于所述横向部。
  46. 根据权利要求45所述的双联混合注射器,其特征在于,所述横向部还包括设置于各所述安装孔的横向两侧的至少两个限位部,所述限位部卡接于所述凸缘部,使得所述单筒注射器固定于所述固定架。
  47. 根据权利要求46所述的双联混合注射器,其特征在于,所述限位部与对应的安装孔的中心轴线之间的距离小于所述凸缘部的外轮廓与该中心轴线之间的最大距离。
  48. 根据权利要求46或47所述的双联混合注射器,其特征在于,所述凸缘部的外轮廓为长圆形,所述凸缘部的外轮廓的直线部分卡接于所述限位部。
  49. 根据权利要求45至48中任一项所述的双联混合注射器,其特征在于,所述储液部出口部形成与所述连接件的连接件入口接头的母鲁尔接头结构配合的公鲁尔接头结构。
  50. 根据权利要求45至49中任一项所述的双联混合注射器,其特征在于,两个所述纵向部彼此相对地延伸并且所述两个纵向部的远离所述横向部的自由端部形成彼此相向地凸出的纵向部凸块,使得所述纵向部凸块与所述连接件的卡扣部配合卡接,以使所述固定架和所述连接件至少在纵向上的相对位置固定。
  51. 根据权利要求42至50中任一项所述的双联混合注射器,其特征在于,所述双联混合注射器还包括推拉杆连接板,所述推拉杆连接板安装于所述两个单筒注射器的推拉杆的操作部使得所述推拉杆的操作部始终对齐并且连动。
  52. 根据权利要求42至50中任一项所述的双联混合注射器,其特征在于,所述单筒注射器为预封装有液体的单筒注射器,该单筒注射器具有与所封装的液体对应的标识信息。
  53. 根据权利要求42至52中任一项所述的双联混合注射器,其特征在于,通过所述长喷头的长喷头入口部的入口台阶结构与所述连接件的连接件出口接头的出口台阶结构配合,使得所述长喷头入口部的第一入口部与所述连接件出口接头的第一液体出口部准确对接并且所述长喷头入口部的第二入口部与所述连接件出口接头的第二液体出口部准确对接。
PCT/CN2018/105529 2017-09-18 2018-09-13 双联混合注射器用连接件、双联混合注射器用长喷头及双联混合注射器 WO2019052510A1 (zh)

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CN201710843015.8A CN107456619B (zh) 2017-09-18 2017-09-18 一种具有卡扣结构的双联混合注射器
CN201710843015.8 2017-09-18
CN201711023168.4 2017-10-27
CN201711023168.4A CN107744888A (zh) 2017-10-27 2017-10-27 超低压旋流雾化喷嘴及双联混合注射器
CN201810097672.7A CN108309795A (zh) 2018-01-31 2018-01-31 一种两用的双联混合注射器连接件及双联混合注射器
CN201810097672.7 2018-01-31
CN201810290558.6A CN108498905A (zh) 2018-04-03 2018-04-03 用于双联混合注射器的腔镜型喷头及腔镜型双联混合注射器
CN201810291603.X 2018-04-03
CN201810290558.6 2018-04-03
CN201810291603.XA CN108339194B (zh) 2018-04-03 2018-04-03 一种可弯折造型的鞘管、注射器喷头及其应用

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