CN219001735U

CN219001735U - Tee joint connection structure for injection pump

Info

Publication number: CN219001735U
Application number: CN202222154625.6U
Authority: CN
Inventors: 薛萌菲
Original assignee: First Medical Center of PLA General Hospital
Current assignee: First Medical Center of PLA General Hospital
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2023-05-12
Anticipated expiration: 2032-08-16

Abstract

The utility model discloses a three-way connecting structure for an injection pump, which relates to the technical field of three-way connecting structures and comprises a first three-way piece, wherein the top end of the first three-way piece is rotationally connected with a first rotary valve, the outer wall of one side of the first three-way piece is fixedly connected with a first end, the outer wall of one end of the first three-way piece is fixedly connected with a second end, the outer wall of one end of the first three-way piece, which is far away from the second end, is fixedly connected with a first connecting pipe, and the outer wall of the first connecting pipe is rotationally sleeved with a first rotary cap, a rotary pipe, a convex ring and a limiting cylinder. According to the utility model, the convex rings on the outer wall of the first connecting pipe and the limiting cylinder on the inner wall of the coil are arranged, so that the connection between the three-way pipes is not fixed only by virtue of threads, the firmness of connection between the three-way pipes is improved, the phenomenon of blood reflux caused by looseness is not easy to occur between the three-way pipes when liquid is injected, the use safety is enhanced, and the transfusion progress is not influenced.

Description

Tee joint connection structure for injection pump

Technical Field

The utility model relates to the technical field of tee joint connection structures, in particular to a tee joint connection structure for an injection pump.

Background

The injection pump is composed of a stepping motor, a driver of the stepping motor, a screw rod, a bracket and the like, and is provided with the screw rod and the nut which move reciprocally, so the injection pump is also called a screw rod pump, the nut is connected with a piston of the injector, liquid medicine is contained in the injector, high-precision stable and pulsation-free liquid transmission is realized, when the injection pump is needed to inject medicines, a plurality of tee joints are needed to be connected to ensure the injection of different medicines, and therefore, the tee joints are very frequently used when the medicines are injected.

However, in the prior art, common tee joints are fixed only by means of screw threads when being connected with each other, so that the tee joints are easy to loosen when in use, the firmness is low, and once loosening occurs, the tee joints can cause the reflux of blood of a patient, so that the transfusion progress and the treatment of the patient are affected.

Disclosure of Invention

The utility model aims at: in order to solve the problem that a plurality of tee joints are easy to loosen when being connected during injection of medicines, the tee joint connection structure for the injection pump is provided, so that the problem in the background technology is solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a tee bend connection structure for syringe pump, includes first tee bend spare, the top rotation of first tee bend spare is connected with first rotary valve, one side outer wall fixedly connected with first end of first tee bend spare, the one end outer wall fixedly connected with second end of first tee bend spare, the one end outer wall fixedly connected with first connecting tube of keeping away from the second end of first tee bend spare, the outer wall of first connecting tube rotates and has cup jointed first cap soon, the inner wall of first cap soon has the coil through threaded connection, the one end outer wall fixedly connected with bulge loop of keeping away from first tee bend spare of first connecting tube, the inner wall fixedly connected with spacing section of thick bamboo of coil.

As still further aspects of the utility model: the one end fixedly connected with second tee bend spare that keeps away from the screw thread of coil, the top rotation of second tee bend spare is connected with the second rotary valve, one side outer wall fixedly connected with third end of second tee bend spare, the one end outer wall that keeps away from the coil of second tee bend spare has rotated through the second connecting pipe and has cup jointed the second cap of revolving.

As still further aspects of the utility model: the diameter of the outer wall of the convex ring is matched with the diameter of the inner wall of the coil.

As still further aspects of the utility model: the diameter of the outer wall of the first connecting pipe is matched with the diameter of the inner wall of the limiting cylinder, and the diameter of the outer wall of the convex ring is slightly larger than the diameter of the inner wall of the limiting cylinder.

As still further aspects of the utility model: the first connecting pipe and the convex ring are integrally formed through an injection molding process, and the coil pipe and the limiting cylinder are integrally formed through an injection molding process.

As still further aspects of the utility model: the outer wall of one end of the coil is provided with external threads, the inner wall of the first screw cap is provided with internal threads, and the external threads are matched with the internal threads.

Compared with the prior art, the utility model has the beneficial effects that:

through setting up the spacing section of thick bamboo of bulge loop and the coil inner wall of first connecting pipe outer wall, make the connection between a plurality of tee bend no longer only rely on the screw thread to fix, improved the firmness of connection between a plurality of tee bend, be difficult for producing the blood reflux phenomenon that causes because of becoming flexible between the tee bend when injecting liquid, strengthened the safety in utilization, make the infusion progress not influenced.

Drawings

FIG. 1 is a schematic view of a three-way connection structure for a syringe pump in a connected state;

FIG. 2 is a schematic view of the structure of the three-way connection structure for the syringe pump in a separated state;

FIG. 3 is a sectional view showing the structure of a three-way connection structure for a syringe pump;

fig. 4 is an enlarged schematic view of a three-way connection structure for a syringe pump at a point a in fig. 3.

In the figure: 1. a first tee; 2. a first rotary valve; 3. a first end; 4. a second end; 5. a first connection pipe; 6. a first screw cap; 7. a coil; 8. a second tee; 9. a second rotary valve; 10. a third end; 11. a second screw cap; 12. a convex ring; 13. and a limiting cylinder.

Detailed Description

Referring to fig. 1 to 4, in the embodiment of the utility model, the three-way connection structure for the injection pump comprises a first three-way member 1, wherein the top end of the first three-way member 1 is rotatably connected with a first rotary valve 2, one side outer wall of the first three-way member 1 is fixedly connected with a first end head 3, one end outer wall of the first three-way member 1 is fixedly connected with a second end head 4, one end outer wall of the first three-way member 1, which is far away from the second end head 4, is fixedly connected with a first connecting pipe 5, the outer wall of the first connecting pipe 5 is rotatably sleeved with a first rotary cap 6, the inner wall of the first rotary cap 6 is fixedly connected with a rotary pipe 7 through threads, one end outer wall of the first connecting pipe 5, which is far away from the first three-way member 1, is fixedly connected with a convex ring 12, and the inner wall of the rotary pipe 7 is fixedly connected with a limiting cylinder 13.

This kind of tee bend connection structure for syringe pump can connect the remittance to different liquid pipeline through first tee bend spare 1, can open and seal the interface that needs through first rotary valve 2, can connect liquid pipeline through first end 3, second end 4, can carry injection liquid through first connecting pipe 5, can connect a plurality of tee bend through first cap 6, coil 7, when needs are connected a plurality of tee bend, can cup joint first cap 6 at the outer wall of coil 7 according to the screw thread direction rotation, when rotatory to bulge loop 12 and spacing section of thick bamboo 13 contact, can push into spacing section of thick bamboo 13 through the power of rotatory first cap 6, until first cap 6 and coil 7 are screwed each other, can accomplish the interconnect of a plurality of tee bend, bulge loop 12 is shrink deformation state this moment, its bulge loop has great frictional force with spacing section of thick bamboo 13 each other, the interconnect through bulge loop 12 and spacing section of thick bamboo 13 makes the connection between a plurality of tee bend not only rely on the screw thread to fix any more, the difficult phenomenon of having improved the connection between a plurality of tee joints when having improved the degree of contrast, the phenomenon of causing the reflux phenomenon is firm in the blood when the syringe has produced.

In fig. 1-2: one end of the coil pipe 7, which is far away from the screw thread, is fixedly connected with a second tee joint part 8, the top end of the second tee joint part 8 is rotationally connected with a second rotary valve 9, one side outer wall of the second tee joint part 8 is fixedly connected with a third end 10, and one end outer wall of the second tee joint part 8, which is far away from the coil pipe 7, is rotationally sleeved with a second rotary cap 11 through a second connecting pipe.

This kind of tee bend connection structure for syringe pump is connected through second tee bend spare 8 to different liquid pipeline and is imported, can open and seal the interface that needs through second rotary valve 9, can connect liquid pipeline through third end 10, can connect a plurality of tee bend through second cap 11.

In fig. 2, 4: the diameter of the outer wall of the collar 12 matches the diameter of the inner wall of the coil 7.

The three-way connecting structure for the injection pump can enable the first connecting pipe 5 and the convex ring 12 to be better sleeved into the coil 7.

In fig. 4: the diameter of the outer wall of the first connecting pipe 5 is matched with the diameter of the inner wall of the limiting cylinder 13, and the diameter of the outer wall of the convex ring 12 is slightly larger than the diameter of the inner wall of the limiting cylinder 13.

The three-way connecting structure for the injection pump can be used for fixedly connecting the first connecting pipe 5 and the coil 7, is firm in connection and is not easy to fall off.

In fig. 4: the first connecting pipe 5 and the convex ring 12 are integrally formed through an injection molding process, and the coil pipe 7 and the limiting cylinder 13 are integrally formed through an injection molding process.

The tee joint connecting structure for the injection pump can enable connection between tee joints to be firmer, is not easy to damage and is simple in process.

In fig. 2: an outer wall of one end of the coil pipe 7 is provided with an external thread, an inner wall of the first screw cap 6 is provided with an internal thread, and the external thread is matched with the internal thread.

The three-way connecting structure for the injection pump is convenient for connecting and separating the first screw cap 6 and the screw tube 7.

The working principle of the utility model is as follows: can connect the remittance to different liquid pipelines through first tee bend spare 1, can open and seal the interface that needs through first rotary valve 2, can connect liquid pipeline through first end 3, second end 4, can carry injection liquid through first connecting pipe 5, can connect a plurality of tee bend through first cap 6, coil 7, when needs are connected a plurality of tee bend, can cup joint first cap 6 and rotate at the outer wall of coil 7 according to the screw thread direction, when rotatory to bulge loop 12 and spacing section of thick bamboo 13 contact, can push bulge loop 12 into spacing section of thick bamboo 13 through the power of rotatory first cap 6, can accomplish the interconnect of a plurality of tee bend through first cap 6 and coil 7 each other screwing, when need carry out the separation with a plurality of tee bend that connect, can pull out bulge loop 12 from spacing section of thick bamboo 13 through the power of rotatory first cap 6, until first cap 6 and coil 7 are connected, can accomplish the separation between a plurality of tee bend completely, connect and dismantle the bulge loop 12 and make the difficult phenomenon between the tee bend that makes between a plurality of tee bend and the difficult three-way through the connection that has produced through rotatory connection, the difficult phenomenon that makes between a plurality of tee bend and the three-way connection has not had the improvement and the safety in the safety has produced.

The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a tee bend connection structure for syringe pump, includes first tee bend spare (1), rotary valve (2), first end (3), second end (4), first connecting tube (5), first cap (6) soon, coil (7), its characterized in that, one end outer wall fixedly connected with bulge loop (12) of keeping away from first tee bend spare (1) of first connecting tube (5), the inner wall fixedly connected with of coil (7) is spacing section of thick bamboo (13).

2. The three-way connection structure for the syringe pump according to claim 1, wherein one end, far away from threads, of the coil (7) is fixedly connected with a second three-way piece (8), the top end of the second three-way piece (8) is rotationally connected with a second rotary valve (9), one side outer wall of the second three-way piece (8) is fixedly connected with a third end (10), and one end outer wall, far away from the coil (7), of the second three-way piece (8) is rotationally sleeved with a second rotary cap (11) through a second connecting pipe.

3. The three-way connection structure for a syringe pump according to claim 1, characterized in that the outer wall diameter of the collar (12) matches the inner wall diameter of the coil (7).

4. The three-way connection structure for the syringe pump according to claim 1, wherein the diameter of the outer wall of the first connecting pipe (5) is matched with the diameter of the inner wall of the limiting cylinder (13), and the diameter of the outer wall of the convex ring (12) is slightly larger than the diameter of the inner wall of the limiting cylinder (13).

5. The three-way connection structure for the syringe pump according to claim 1, wherein the first connecting pipe (5) and the convex ring (12) are integrally formed through an injection molding process, and the coil (7) and the limit cylinder (13) are integrally formed through an injection molding process.

6. The three-way connection structure for the syringe pump according to claim 1, wherein an outer wall of one end of the coil (7) is provided with an external thread, an inner wall of the first screw cap (6) is provided with an internal thread, and the external thread is matched with the internal thread.