CN218980031U

CN218980031U - Stable high leakproofness syringe

Info

Publication number: CN218980031U
Application number: CN202222696165.XU
Authority: CN
Inventors: 宣亚飞; 王明辉
Original assignee: Anhui Xuanhe Medical Technology Co ltd
Current assignee: Anhui Xuanhe Medical Technology Co ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-05-09
Anticipated expiration: 2032-10-13

Abstract

The utility model discloses a stable high-tightness injector, which is connected with a telescopic sleeve through the bottom end of an injection cylinder body, wherein the bottom end of the telescopic sleeve is connected with the bottom end of a core rod, so that liquid flows out through a sealing ring and only flows into the telescopic sleeve, and does not fall on a human body; by the arrangement of the finger grooves, when the core bar is pushed and pulled, the fingers are buckled in the finger grooves, so that the core bar is not easy to slide; through the arrangement of the mounting block and the sealing gasket, the sealing gasket is attached to the inner wall of the injection cylinder body, so that a layer of sealing arrangement is additionally added; through the setting of interior annular, draw-in groove and snap ring for the sealing gasket sets up more closely when on the installation piece. The problem that the sealing ring can leak liquid due to abrasion when the injector is used for multiple times, so that the liquid flows into the tail end from the head end of the injector through the plunger and finally flows onto a human body, and some liquid is harmful to the skin of the human body can be effectively solved.

Description

Stable high leakproofness syringe

Technical Field

The utility model relates to the field of syringes, in particular to a stable high-tightness syringe.

Background

The syringe is a common liquid injection device, and can be used for rapidly and efficiently sucking and injecting medicaments, and is also used for sucking a solution in a laboratory.

Currently, in the market, a sealing ring is sleeved on a plunger to seal the plunger and a syringe main body. However, multiple uses of the syringe may cause leakage of the seal ring due to wear, so that the liquid flows from the head end to the tail end of the syringe through the plunger and finally flows to the human body, and some liquid is harmful to the human skin.

Disclosure of Invention

The utility model aims to provide a stable high-tightness syringe which solves the problems in the background technology.

In order to achieve the above object, the present utility model provides a stable high-tightness syringe according to the following technical scheme, comprising:

the injector assembly comprises an injection cylinder body, a head end arranged at the top end of the injection cylinder body, a core rod arranged in the inner cavity of the injection cylinder body and a sealing piston arranged at the top end of the core rod;

the liquid leakage prevention assembly comprises a fixed ring arranged at the bottom end of the injection cylinder body, a pulling block arranged at the bottom end of the core rod, a telescopic sleeve with one end arranged at the top surface of the pulling block and the other end arranged at the bottom end of the fixed ring, an injection cavity between the top end of the sealing piston and the inner cavity of the injection cylinder body, and a drying cavity between the bottom end of the sealing piston and the inner cavity of the injection cylinder body.

As a preferable scheme of the stable high-tightness injector, the core rod is provided with a mounting block, and the outer wall of the mounting block is provided with a sealing gasket.

As a preferable scheme of the stable high-tightness injector, the side wall of the mounting block is provided with an inner annular groove, and the sealing gasket is sleeved in the inner annular groove.

As a preferable scheme of the stable high-tightness injector, a clamping groove is formed in the side wall of the inner ring groove, a clamping ring is arranged on the side wall of the sealing gasket, and the clamping ring is arranged in the clamping groove.

As a preferable scheme of the stable high-tightness syringe, finger grooves are symmetrically arranged on the pulling blocks, and anti-skid grooves are formed in the inner walls of the finger grooves.

Compared with the prior art, the utility model has the following beneficial effects: the bottom of the injection cylinder body is connected with the telescopic sleeve, and the bottom of the telescopic sleeve is connected with the bottom of the core rod, so that liquid flows out through the sealing ring and only flows into the telescopic sleeve, and cannot fall on a human body. The problem that the sealing ring can leak liquid due to abrasion when the injector is used for multiple times, so that the liquid flows into the tail end from the head end of the injector through the plunger and finally flows onto a human body, and some liquid is harmful to the skin of the human body can be effectively solved.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

fig. 3 is a schematic structural view of the gasket.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

The utility model provides a stable high-tightness syringe, which can effectively solve the problem that the sealing ring is likely to leak due to abrasion when the syringe is used for a plurality of times, so that the liquid flows into the tail end from the head end of the syringe through a plunger and finally flows onto a human body, and some liquid is harmful to the skin of the human body.

Fig. 1-3 are schematic structural views of a stable high-tightness syringe according to an embodiment of the present utility model, referring to fig. 1-3, a stable high-tightness syringe according to the present embodiment includes, in a main body portion, a syringe assembly 100 and a leakage preventing assembly 200:

the syringe assembly 100 is used for sucking and injecting a solution, and sometimes injecting a gas, and specifically includes a syringe body 110, a head end 111 disposed at the top end of the syringe body 110, a core rod 120 disposed in an inner cavity of the syringe body 110, and a sealing piston 130 disposed at the top end of the core rod 120, wherein the top end of the core rod 120 is provided with a fixed head, the sealing piston 130 is sleeved on the fixed head, and when in use, the core rod 120 is inserted into the syringe body 110, the sealing piston 130 is tightly attached to the inner wall of the syringe body 110, the head end 111 is directly placed in the solution, or the head end 111 is placed in the solution after being connected with a needle, and then the core rod 120 is pulled, the solution is sucked into the syringe body 110, the core rod 120 is pushed again, and the solution is ejected, if the sealing piston 130 is damaged, and the solution flows out from a damaged gap. In this embodiment, the device further comprises a mounting block 140 and a sealing pad 150, wherein the sealing pad 150 is attached to the inner wall of the syringe 110, so that a layer of sealing arrangement is additionally added; the sealing gasket 150 is tightly arranged on the mounting block 140 by further comprising an inner ring groove 160, a clamping groove 170 and a clamping ring 171;

the anti-leakage assembly 200 is used for preventing the solution from leaking out onto the human body, and specifically comprises a fixing ring 210 arranged at the bottom end of the syringe body 110, a pulling block 220 arranged at the bottom end of the core rod 120, a telescopic sleeve 230 with one end arranged on the top surface of the pulling block 220 and the other end arranged at the bottom end of the fixing ring 210, an injection cavity 240 between the top end of the sealing piston 130 and the inner cavity of the syringe body 110, and a drying cavity 241 between the bottom end of the sealing piston 130 and the inner cavity of the syringe body 110, wherein the telescopic sleeve 230 is provided with folds for stretching, the upper end and the lower end of the telescopic sleeve 230 are respectively fixed on the fixing ring 210 and the pulling block 220, the fixing manner can be gluing or other manners, as long as the fixing manner can be achieved, the telescopic sleeve 230 can stretch along with the pulling process of the core rod 120, but the space between the bottom end of the core rod 120 and the bottom end of the syringe body 110 is always kept to wrap, when the syringe is used, the core rod 120 is generally held by hands, if the solution leaks out from the sealing piston 130 and flows into the telescopic sleeve 230 along the syringe body 110, and does not flow onto hands. In this embodiment, the finger groove 221 is further included, so that when the core 120 is pushed and pulled, the finger is locked in the finger groove 221, and is not easy to slide.

Referring to fig. 1-3, embodiments of the stable, high-tightness syringe are as follows: the head end 111 is directly placed in the solution, or the head end 111 is connected with the needle head and then placed in the solution, then the core rod 120 is pulled, the solution is sucked into the syringe body 110, the core rod 120 is pushed again, the solution is ejected, if the sealing piston 130 is damaged, the solution flows out from the damaged gap, flows into the telescopic sleeve 230 along the syringe body 110, and does not flow onto the hand.

While the fundamental principles, principal features, and advantages of the present utility model have been shown and described, it will be apparent to those skilled in the art that the present utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A stable, high tightness syringe comprising:

a syringe assembly (100) comprising a syringe body (110), a head end (111) arranged at the top end of the syringe body (110), a core rod (120) arranged in the inner cavity of the syringe body (110) and a sealing piston (130) arranged at the top end of the core rod (120);

leak protection liquid subassembly (200), including setting up retainer plate (210) of syringe body (110) bottom, setting are in pulling piece (220) of core bar (120) bottom, one end setting are in pulling piece (220) top surface and the other end setting are in flexible cover (230) of retainer plate (210) bottom, sealed piston (130) top with injection chamber (240) between syringe body (110) inner chamber and sealed piston (130) bottom with dry chamber (241) between syringe body (110) inner chamber.

2. The stable high-tightness syringe according to claim 1, characterized in that the core rod (120) is provided with a mounting block (140), and the outer wall of the mounting block (140) is provided with a sealing gasket (150).

3. The stable high-tightness syringe according to claim 2, characterized in that the side wall of the mounting block (140) is provided with an inner ring groove (160), and the sealing gasket (150) is sleeved in the inner ring groove (160).

4. A stable high tightness syringe according to claim 3, characterized in that a clamping groove (170) is provided on the side wall of the inner ring groove (160), a clamping ring (171) is provided on the side wall of the sealing gasket (150), and the clamping ring (171) is provided in the clamping groove (170).

5. The stable high-tightness syringe according to claim 4, wherein finger grooves (221) are symmetrically arranged on the pulling block (220), and anti-slip grooves are formed on the inner walls of the finger grooves (221).