CN217119045U

CN217119045U - Three-way remaining needle connecting hose structure

Info

Publication number: CN217119045U
Application number: CN202220663706.6U
Authority: CN
Inventors: 傅志荣
Original assignee: Kunshan Ruoyite Molding Technology Co ltd
Current assignee: Kunshan Ruoyite Molding Technology Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-08-05
Anticipated expiration: 2032-03-25

Abstract

The utility model discloses a needle coupling hose structure is kept somewhere to tee bend belongs to medical equipment accessory technical field, and the structure includes tee bend, plastics rivet and hose, and the plastics rivet includes base and a shaft of round platform form, the shaft with the one end joint of hose, tee bend include first passageway and second passageway, the first passageway is inherent first, the two passageways cross mouthful below and be close to the position of first passageway export offer with base shape form size assorted first recess, the A end card of plastics rivet and hose is located in the first passageway and the base card of plastics rivet is established in first recess, the B end of hose is followed the export of first passageway is stretched out. The plastic rivet is adopted to connect the tee joint and the hose, so that the structure is simple and firm, and the plastic rivet can be used for medical detection such as CT scanning and nuclear magnetic resonance. The utility model discloses can use under high pressure and low pressure simultaneously, have the function of two kinds of main products on the market concurrently, merge two production lines in with present mill into one, saved manufacturing cost.

Description

Three-way remaining needle connecting hose structure

Technical Field

The utility model relates to a medical equipment accessory technical field especially relates to a needle coupling hose structure is kept somewhere to tee bend.

Background

The indwelling needle is widely used in the field of infusion therapy, and particularly can be used for multiple times and can protect blood vessels when in continuous infusion or infant infusion.

The existing indwelling needle mainly has two forms, one can be used under high pressure, the three ways of the existing indwelling needle are connected with a hose through a stainless steel rivet, but the existing indwelling needle cannot be used when some medical detection such as CT scanning is carried out due to the metal parts; another method normally used is to attach the tee securely to the hose by means of an adhesive such as UV glue, which tends to cause the bore to become blocked and unusable at high pressures. Therefore, most manufacturers need to provide two production lines when the remaining needle is produced at present, and the cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a tee bend links to each other with the hose through plastics rivet, simple structure and connect reliable tee bend and keep somewhere needle coupling hose structure.

The technical scheme of the utility model is that:

the utility model provides a needle connection hose structure is kept somewhere to tee bend, includes tee bend, plastics rivet and hose, its characterized in that: the plastic rivet comprises a truncated cone-shaped base and a column body, the column body is clamped with one end of the hose, and the clamped end of the hose and the plastic rivet is defined as an A end and the other end of the hose and the plastic rivet is defined as a B end;

the tee bend includes first passageway and second passageway, the first passageway in first, the two passageways meet mouthful below and be close to the position of first passageway export seted up with base shape size assorted first recess, the A end card of plastics rivet and hose is located in the first passageway just the base card of plastics rivet is established in first recess, the B end of hose is followed the export of first passageway is stretched out.

Preferably, a plurality of protrusions are arranged on the inner side wall of the first channel between the first groove and the outlet of the first channel.

Preferably, the protrusions are arranged along a circumferential direction of the first passage.

Preferably, a plurality of second grooves matched with the bulges in shape and size are arranged on the outer side wall of the end A of the hose.

Preferably, a head with a gradually reduced diameter is formed at one end, far away from the base, of the column body, the diameter of one end, far away from the base, of the head is smaller than that of the hose, and the diameter of the column body is larger than that of the hose, so that the plastic rivet is clamped in the hose and can prop open the end A of the hose.

Preferably, the part between the first groove and the first channel outlet in the first channel is defined as a connecting section, the length of the connecting section is greater than the sum of the column body and the head of the plastic rivet, the inner diameter of the connecting section is matched with the size of the hose, and the end A of the hose is spread by the plastic rivet to enable the end A of the hose to be tightly attached to the inner side wall of the connecting end.

Preferably, the base of the plastic rivet is connected with the column body through a circular arc section.

Preferably, a vertical section extends from the base of the plastic rivet in the direction away from the column body, and a third groove matched with the vertical section in size is formed in the first channel above and adjacent to the first groove.

The utility model has the beneficial technical effects that:

1. the plastic rivet is adopted to connect the tee joint and the hose, so that the structure is simple and firm, and the plastic rivet can be used for medical detection such as CT scanning and nuclear magnetic resonance;

2. the device can be used under high pressure and low pressure simultaneously, has the functions of two main products on the market, combines two production lines in the current factory into one production line, and saves the production cost;

3. a plurality of bulges are arranged on the inner side wall of the first channel between the first groove and the outlet of the first channel, so that the friction force between the inner side wall of the first channel and the hose can be increased, and the connection between the inner side wall of the first channel and the hose is firmer and more reliable;

drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is an enlarged view of portion I of FIG. 2;

fig. 4 is a top view of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is an enlarged view of a portion II of FIG. 5;

FIG. 7 is a front view of a plastic rivet;

wherein:

1. a tee joint; 2. plastic rivets; 3. a hose;

11. a first channel; 12. a second channel;

111. a first groove; 112. a protrusion; 113. a connecting section; 114. a third groove;

21. a base; 22. a column body; 23. a head portion; 24. a circular arc section; 25. a vertical section;

31. a second groove.

Detailed Description

In order to make the technical means of the present invention clearer and to implement the present invention according to the content of the specification, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples, which are used for illustrating the present invention and are not intended to limit the scope of the present invention.

Referring to fig. 1 to 7, the utility model provides a needle coupling hose structure is stayed to tee bend, including tee bend, plastics rivet and hose, the inside link up of plastics rivet, including the base and the shaft of round platform form, the one end joint of shaft and hose, the one end of definition hose and plastics rivet joint is A end and its other end is the B end.

The tee bend includes first passageway and second passageway, the first passageway in first passageway first, the two passageways intersection mouthful below and be close to the position of first passageway export offer with base shape size assorted first recess, the A end card of plastics rivet and hose is located in the first passageway and the base card of plastics rivet is established in first recess, the B end of hose is followed the export of first passageway stretches out.

A plurality of bulges are arranged between the first groove and the first channel outlet on the inner side wall of the first channel. The protrusion is provided to increase the friction between the inner side wall of the first channel and the hose, so that the connection between the inner side wall of the first channel and the hose is firmer and more reliable.

The form of the protrusion is various, and for example, it may be a circular protrusion arranged along the circumference of the inner side wall of the first passage as shown in fig. 6. Preferably, the cross section of the bulge is semi-cylindrical, so that the plastic rivet and the hose can be conveniently installed. The protrusions can also be in other forms, such as a plurality of granular protrusions which are uniformly arranged on the inner side wall of the first channel at intervals.

Preferably, a plurality of second grooves corresponding to the protrusions are formed in the position, attached to the first channel, of the outer side wall of the end A of the hose, and the protrusions can be just clamped into the second grooves in the outer side face of the hose after the plastic rivet and the hose are installed.

The one end that the base was kept away from to the shaft of plastics rivet forms the head that the diameter reduces gradually, and the head is the round platform form, and its diameter of keeping away from the one end of base is less than the diameter of hose, and the diameter of shaft is greater than the diameter of hose makes the plastics rivet can pass through the head card and go into in the hose to prop open the A end of hose through the shaft, the A end props open the back and both can strengthen the effort between plastics rivet and the hose and make its firm in connection, can also make hose and three-way connection more firm.

Preferably, the outer side of the plastic rivet column body is provided with a plurality of second bulges, so that the friction force between the inner side wall of the hose and the plastic rivet is increased, and the connection between the inner side wall of the hose and the plastic rivet is firmer and more reliable.

The part between the first groove and the first channel outlet in the first channel of the tee joint is defined as a connecting section, the length of the connecting section is greater than the sum of the plastic rivet column body and the head, and the inner diameter of the connecting section is matched with the size of the hose. The A end of hose is propped up by the plastics rivet and is established the card again and install at the three-way linkage segment, makes the position that the linkage segment corresponds produce certain deformation, and then increases the block effort between linkage segment and the hose, make the A end of hose with the inside wall of link closely laminates, makes the connection between hose and the three-way more reliable.

The base and the column body of the plastic rivet are connected through an arc section. If adopt sharp coupling between base and the shaft, though the processing degree of difficulty is lower, but can have a effort of sudden turn between shaft and the base, can not smooth transition, lead to the easy fracture between shaft and the base. And this has been implemented and has linked to each other through the circular arc section between base and the shaft in, can effectively pass through this effort, avoid the cracked risk of plastics rivet.

A vertical section extends from the base of the plastic rivet in the direction far away from the column body, and a third groove matched with the vertical section in size is formed in the first channel above the first groove and adjacent to the first groove. The vertical section is used for helping to conduct acting force, so that the structural strength of the base is enhanced, and the base is prevented from being broken.

Preferably, the tee bend adopts the PP material, and the plastics rivet adopts the PC material, and the hose is the PVC material.

During actual production, the plastic rivet is pressed into the end A of the hose, and the plastic rivet is pressed into the first channel of the tee joint by using the jig. The whole production only needs one production line, and the production process is simple and efficient.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a needle connection hose structure is kept somewhere to tee bend, includes tee bend (1), plastics rivet (2) and hose (3), its characterized in that: the plastic rivet comprises a truncated cone-shaped base (21) and a column body (22), the column body is clamped with one end of the hose, and the clamping end of the hose and the plastic rivet is defined as an A end and the other end of the hose is defined as a B end;

the tee bend includes first passageway (11) and second passageway (12), the first passageway in first, the two passageways meet mouthful below and be close to the position of first passageway export seted up with base shape size assorted first recess (111), the A end card of plastics rivet and hose is located in the first passageway just the base card of plastics rivet is established in first recess, the B end of hose is followed the export of first passageway stretches out.

2. The three-way indwelling needle connection hose structure according to claim 1, wherein: a plurality of bulges (112) are arranged on the inner side wall of the first channel (11) between the first groove and the outlet of the first channel.

3. The three-way indwelling needle connection hose structure according to claim 2, wherein: the protrusions are arranged along a circumferential direction of the first passage.

4. The three-way indwelling needle connection hose structure according to claim 2, wherein: and a plurality of second grooves (31) matched with the bulges in shape and size are arranged on the outer side wall of the end A of the hose.

5. The three-way indwelling needle connection hose structure according to claim 1, wherein: the diameter of one end, far away from the base, of the column body (22) is smaller than that of the hose, a head (23) with the diameter gradually reduced is formed at one end, far away from the base, of the column body, the diameter of one end, far away from the base, of the head is smaller than that of the hose, and the diameter of the column body is larger than that of the hose, so that the plastic rivet is clamped in the hose and can prop open the end A of the hose.

6. The three-way indwelling needle connection hose structure according to claim 5, wherein: and defining the part between a first groove (111) and the outlet of the first channel in the first channel as a connecting section (113), wherein the length of the connecting section is greater than the sum of the column body and the head of the plastic rivet, the inner diameter of the connecting section is matched with the size of the hose, and the A end of the hose is spread by the plastic rivet to enable the A end of the hose to be tightly attached to the inner side wall of the connecting end.

7. The three-way indwelling needle connection hose structure according to claim 1, wherein: the base (21) and the column body (22) of the plastic rivet are connected through a circular arc section (24).

8. The three-way indwelling needle connection hose structure according to claim 1, wherein: a vertical section (25) extends from the base of the plastic rivet in the direction far away from the column body, and a third groove (114) matched with the vertical section in size is formed in the first channel above the first groove and in the position adjacent to the first groove (111).