CN212944285U

CN212944285U - Double-hole syringe

Info

Publication number: CN212944285U
Application number: CN202021088161.8U
Authority: CN
Inventors: 郑陈业; 朱靖华; 苏超群
Original assignee: Fujian Longyan Longxing Medicine Technology Co ltd
Current assignee: Fujian Longyan Longxing Medicine Technology Co ltd
Priority date: 2020-06-14
Filing date: 2020-06-14
Publication date: 2021-04-13
Anticipated expiration: 2030-06-14

Abstract

A double-hole injector comprises an injector tube, a flow guide head and a connector, wherein the flow guide head is made of polytetrafluoroethylene, the connector is made of stainless steel, and the injector tube is made of glass. The flow guide head is arranged between the syringe tube and the connector, and the connector is provided with two threaded holes for connecting pipelines; the flow guide head is correspondingly provided with through holes which are respectively communicated with the two threaded holes, so that the inner cavity of the syringe tube is communicated with the threaded holes. The utility model discloses set up two screw holes on the stainless steel connector, realized the diplopore design, the screw hole of processing on the stainless steel connector is durable, and the first one end of water conservancy diversion that polytetrafluoroethylene material made has the glass pipe to support, and the other end then has stainless steel to support, is difficult for coming unstuck not hard up because of receiving the exogenic action to lead to the polytetrafluoroethylene part to come unstuck. Compared with the prior art, the double-hole injector reduces the processing difficulty, improves the product performance and prolongs the service life.

Description

Double-hole syringe

Technical Field

The utility model relates to a syringe, in particular to a double-hole syringe with two inlet and outlet holes.

Background

The double-hole injector can effectively reduce the dead volume and is convenient for rinsing the injector, so that the double-hole injector is often used for improving rinsing efficiency in the fields of biological medicine, food, environment and the like with higher requirements on residue control. The existing double-hole injector is generally connected with a polytetrafluoroethylene component at the end part of the injector, and two threaded holes are processed on the polytetrafluoroethylene component to connect pipelines. However, for a syringe tube with a smaller inner diameter, it is difficult to machine two threaded holes in the teflon member due to limited space, which is difficult to machine and easily damaged. Because the rigidity of the polytetrafluoroethylene is not enough, the polytetrafluoroethylene is easy to loosen and slide during use, and liquid leakage is caused.

SUMMERY OF THE UTILITY MODEL

To the problem of mentioning in the background art, for reducing the processing degree of difficulty, improve and produce the property ability, increase of service life, the utility model provides a diplopore syringe.

In order to solve the problems, the following technical scheme is adopted in the application:

a double-hole injector comprises an injector tube, a flow guide head and a connector, wherein the flow guide head is arranged between the injector tube and the connector, the connector is fixedly connected with the injector tube, and the connector is provided with two threaded holes for connecting pipelines; the flow guide head is correspondingly provided with through holes which are respectively communicated with the two threaded holes, so that the inner cavity of the syringe tube is communicated with the threaded holes.

Furthermore, a sink groove is arranged on the connector, one end of the flow guide head is hermetically connected with the syringe tube, and the other end of the flow guide head is hermetically connected in the sink groove.

Furthermore, the flow guide head is formed by integrally forming a large cylinder and a small cylinder, the diameter of the small cylinder is matched with the inner diameter of the injector pipe, and the diameter of the large cylinder is matched with the sinking groove.

Furthermore, the material of the flow guide head is polytetrafluoroethylene, the connector is made of stainless steel, and the injector tube is made of glass.

Furthermore, the small cylinder of the flow guide head is arranged in the injector tube in an extrusion mode, and the outer wall of the small cylinder is sealed with the inner wall of the injector tube through sealant.

Furthermore, the large cylinder of the flow guide head is arranged in a sinking groove of the connector in an extruding mode, and the end face of the flow guide head is abutted to the bottom face of the sinking groove.

Furthermore, the diameter of the large cylinder of the flow guide head is equivalent to the outer diameter of the syringe tube, and a step surface formed between the large cylinder and the small cylinder of the flow guide head is abutted against the bottom of the syringe tube.

Furthermore, the outer wall of the front end of the syringe tube is connected with the inner wall surface of the sinking groove of the connector in an adhesive manner.

Furthermore, a flange is integrally formed on the connecting head.

Further, the inner diameter of the syringe is 10-20mm, and the threaded hole is an M6 threaded hole or a 1/4-28UNF threaded hole.

Has the advantages that:

the diplopore syringe set up two screw holes on the stainless steel connector, realized the diplopore design, the screw hole of processing on the stainless steel connector is durable, the stainless steel part can unite two into one with the flange, the fixed mounting of the syringe of being convenient for. If the conventional threaded hole of M6 or 1/4-28UNF is adopted, the mode can be applied to a glass syringe tube with the inner diameter not less than 10 mm. In addition, one end of the flow guide head made of the polytetrafluoroethylene material is supported by the glass tube, and the other end of the flow guide head is supported by the stainless steel, so that the polytetrafluoroethylene component is not easy to be degummed and loosened under the action of external force. Compared with the prior art, the double-hole injector reduces the processing difficulty, improves the product performance and prolongs the service life.

Drawings

FIG. 1 is a front view of the dual-port syringe of the present invention;

FIG. 2 is a side view of the dual-port syringe of the present invention;

fig. 3 is a top view of the dual-hole injector of the present invention.

In the figure, the injection device comprises a syringe tube 1, a flow guide head 2, a flow guide head 3, a connecting head 4, a flange 5, a threaded hole 6, a sink groove 7 and a through hole.

Detailed Description

The preferred embodiment of the dual-port injector of the present invention will be described in detail with reference to the accompanying drawings 1-3.

As shown in fig. 1-3, a double-hole injector comprises an injector tube 1, a flow guide head 2 and a connector 3, preferably, the flow guide head 2 is made of polytetrafluoroethylene, the connector 3 is made of stainless steel, and the injector tube 1 is made of glass. The flow guide head 2 is arranged between the syringe tube 1 and the connector 3, the connector 3 is fixedly connected with the syringe tube 1, and the connector 3 is provided with two threaded holes 5 for connecting pipelines; the flow guide head 2 is correspondingly provided with through holes 6 which are respectively communicated with the two threaded holes 5, so that the inner cavity of the syringe tube 1 is communicated 7 with the threaded holes 5. Set up the screw hole on the polytetrafluoroethylene material for prior art, the utility model discloses with two screw hole settings on the stainless steel connector, realized the diplopore design, the screw hole of processing on the stainless steel connector is durable.

Preferably, the connector 3 is provided with a sinking groove 6, one end of the flow guiding head 2 is hermetically connected with the syringe tube 1, and the other end of the flow guiding head is hermetically connected in the sinking groove 6, so that the flow guiding head 2 is mounted on the syringe tube 1 and the connector 3, and the sinking groove 6 is convenient for positioning and mounting the flow guiding head 2.

In order to enhance the connection stability and improve the precision, preferably, the flow guiding head 2 is formed by integrally forming a large cylinder and a small cylinder, the diameter of the small cylinder matches the inner diameter of the syringe tube 1, the diameter of the large cylinder matches the sinking groove 6, and the diameter of the sinking groove 6 is equivalent to the outer diameter of the syringe tube 1. During installation, the small cylinder of the flow guide head 2 is arranged in the injector tube 1 in an extrusion manner, and the outer wall of the small cylinder is sealed with the inner wall of the injector tube 1 by using a sealant. Big cylinder extrusion installs in the heavy groove 6 of connector 3, and the terminal surface of water conservancy diversion head 2 and the bottom surface butt of heavy groove 6 play limiting displacement, and water conservancy diversion head 2 is to connector 3 displacement when preventing to use. The step surface formed between the large and small cylinders of the flow guide head 2 is abutted against the bottom of the syringe tube 1 to play a role in limiting, and the flow guide head 2 is prevented from displacing towards the tail end of the syringe tube 1 when in use.

In order to further enhance the connection stability of the syringe tube 1 and the connector 3, the outer wall of the front end of the syringe tube 1 is adhesively connected with the inner wall surface of the sunken groove 6 of the connector 3. That is, the depth of the sink groove 6 is larger than the thickness of the large cylinder of the flow guiding head 2, the outer wall surface of the front end of the injector tube 1 can be partially inserted into the sink groove 6 and is bonded with the glass injector tube 1 by the adhesive to connect the glass injector tube 1 to the stainless steel connector 3, one end of the flow guiding head 2 made of polytetrafluoroethylene has a glass tube support and the other end has a stainless steel support in the using process, so that the polytetrafluoroethylene component is not easy to be degummed and loosened due to the action of external force

In order to facilitate the installation of the injector in an application place, a flange 4 is integrally formed on the connector 3, and the flange 4 is used for facilitating the fixed installation of the injector during use.

The double-hole injector of the utility model is particularly suitable for the injector with the inner diameter of a small glass tube of 10-20mm, and the threaded hole 5 connected with the connector 3 is preferably an M6 threaded hole or a 1/4-28UNF threaded hole.

The above description is only for the preferred embodiment of the present invention, but not limited to the specific embodiment, and all equivalent changes made on the basis of the above description are intended to fall within the protection scope of the present invention.

Claims

1. A dual-bore syringe comprising a syringe barrel (1), characterized in that: the injection syringe is characterized by further comprising a flow guide head (2) and a connector (3), wherein the flow guide head (2) is installed between the syringe tube (1) and the connector (3), the connector (3) is fixedly connected with the syringe tube (1), and the connector (3) is provided with two threaded holes (5) for connecting pipelines; the flow guide head (2) is correspondingly provided with through holes (7) which are respectively communicated with the two threaded holes (5), so that the inner cavity of the syringe tube (1) is communicated with the threaded holes (5).

2. A dual-bore syringe according to claim 1, wherein: be equipped with heavy groove (6) on connector (3), flow guide head (2) one end sealing connection syringe pipe (1), the other end sealing connection in heavy groove (6) in.

3. A dual-bore syringe according to claim 2, wherein: the flow guide head (2) is formed by integrally forming a large cylinder and a small cylinder, the diameter of the small cylinder is matched with the inner diameter of the injector tube (1), and the diameter of the large cylinder is matched with the sinking groove (6).

4. A dual-bore syringe according to claim 3, wherein: the material of the flow guide head (2) is polytetrafluoroethylene, the connector (3) is made of stainless steel, and the injector tube (1) is made of glass.

5. A dual-bore syringe according to claim 4, wherein: the small cylinder of the flow guide head (2) is arranged in the injector tube (1) in an extrusion way, and the outer wall of the small cylinder is sealed with the inner wall of the injector tube (1) by using a sealant.

6. A dual-bore syringe according to claim 5, wherein: the large cylinder of the flow guide head (2) is arranged in the sinking groove (6) of the connector (3) in an extruding mode, and the end face of the flow guide head (2) is abutted to the bottom face of the sinking groove (6).

7. A dual-bore syringe according to claim 6, wherein: the diameter of the large cylinder of the flow guide head (2) is equivalent to the outer diameter of the syringe tube (1), and a step surface formed between the large end and the small end of the flow guide head (2) is abutted against the bottom of the syringe tube (1).

8. A dual-bore syringe according to claim 7, wherein: the outer wall of the front end of the syringe tube (1) is connected with the inner wall surface of the sinking groove (6) of the connector (3) in an adhesive way.

9. A dual-bore syringe according to any one of claims 1 to 8, wherein: and a flange (4) is integrally formed on the connector (3).

10. A dual-bore syringe according to any one of claims 1 to 8, wherein: the inner diameter of the injector is 10-20mm, and the threaded hole (5) is an M6 threaded hole or a 1/4-28UNF threaded hole.