CN203989295U - Syringe - Google Patents

Abstract

The utility model discloses a kind of syringe, comprise needle tubing, needle stand, syringe and push rod, described push rod wear with syringe in, needle stand is socketed in one end of needle tubing, and described syringe one end is provided with fixed leg, on described needle stand socket and fixed leg, in described needle stand, be removably connected with becket, the edge of one end of described becket is integrally formed with several blade tooths, the syringe setting dorsad of the direction of described blade tooth, and the tip of blade tooth forms the circle that a diameter is less than needle stand inner ring diameter.Syringe of the present utility model, by the setting of becket and blade tooth, in fixed leg penetrates into needle stand after, blade tooth will be caught fixed leg firmly, prevents that fixed leg from coming off from the direction of needle tubing dorsad, so just can effectively prevent that needle stand from coming off from syringe.

Description

Syringe

Technical field

This utility model relates to a kind of medical equipment, relates in particular a kind of syringe.

Background technology

Syringe is comprised of the foraminate syringe of front end band and the piston core bar that matches.Syringe is used for that a small amount of liquid or its are injected into region that other method cannot be approaching or from those local extractions out.When core bar is extracted, liquid or gas suck from syringe front end aperture, when core bar pushes, liquid or gas are extruded.By this process of syringe and syringe needle extraction or injecting gas or liquid, be called injection.

Existing syringe general configuration all comprises needle tubing in the market, needle stand, syringe and push rod, wherein, needle tubing is located in needle stand, push rod is located in syringe, syringe one end offers opening, push rod penetrates in this opening, relatively the other end of this opening is offered a hollow circular cylinder with syringe internal communication, the diameter of needle stand inner ring equals fixed leg diameter, needle stand is enclosed within on fixed leg, by frictional force, be fixedly connected with fixed leg, but the syringe of this structure, because needle stand is connected by frictional force with syringe, so the connection between needle stand and syringe is firm not, in the process of using, needle stand is easy to split away off from syringe, serious may appearing at after having injected pulled out in the process of syringe, needle stand comes off from syringe, make needle tubing stay the problem on human body.

Utility model content

The deficiency existing for prior art, the purpose of this utility model is to provide the syringe being connected firmly between a kind of needle stand and syringe.

For achieving the above object, this utility model provides following technical scheme: a kind of syringe, comprise needle tubing, needle stand, syringe and push rod, described push rod wear with syringe in, needle stand is socketed in one end of needle tubing, described syringe one end is provided with fixed leg, on described needle stand socket and fixed leg, in described needle stand, be removably connected with becket, the edge of one end of described becket is integrally formed with several blade tooths, the syringe setting dorsad of the direction of described blade tooth, and the tip of blade tooth forms the circle that a diameter is less than needle stand inner ring diameter.

By adopting technique scheme, by the setting of becket and blade tooth, when connecting needle stand and syringe, fixed leg will penetrate in needle stand, in the process of wearing, fixed leg will pass through becket, strut the tip of blade tooth, when fixed leg arrives the bottom of needle stand, both completed being connected between needle stand and syringe, when syringe is subject to the power separated with needle stand, syringe will produce a motion trend, the direction of motion is needle tubing direction dorsad, at this moment because tip and the fixed leg of blade tooth are closely conflicted, existing syringe and fixed leg all adopt plastic material to make simultaneously, so blade tooth will be embedded in fixed leg, fixed leg just can not be drawn out like this, effectively reached an effect that prevents that needle stand from coming off from fixed leg.

This utility model is further set to: on described needle stand inner ring wall, offer the first cannelure, described becket side is also integrally formed with convex edge, and described convex edge is embedded in the first cannelure.

The side of described fixed leg also offers the second cannelure, in fixed leg penetrates needle stand in, blade tooth is embedded in the second cannelure.

Described becket is made by rustless steel.

By adopting technique scheme, by the setting of the first cannelure and convex edge, just can effectively becket be embedded in needle stand, both becket was fixed in needle stand, just do not need the fixed structure of other what complexity has been set, and what binding agent, also convenience very in the process of making syringe and needle stand simultaneously, only becket need to be filled in and can be completed in needle stand, simultaneously by the setting of the second cannelure, blade tooth just can better be embedded in fixed leg, inconsistent with fixed leg, better prevent that needle stand from departing from from fixed leg, and stainless steel material has the feature that difficulty is got rusty, so just be not easy to occur because becket gets rusty, cause syringe antihygienic problem that becomes.

Accompanying drawing explanation

Fig. 1 is the overall structure figure of syringe of the present utility model;

Fig. 2 is the enlarged drawing of A portion in Fig. 1.

In figure: 1, needle tubing; 2, needle stand; 21, becket; 22, blade tooth; 23, the first cannelure; 3, syringe; 31, fixed leg; 311, the second cannelure; 4, push rod.

The specific embodiment

Shown in 3, a kind of syringe of the present embodiment, comprise needle tubing 1, needle stand 2, syringe 3 and push rod 4, described push rod 4 wear with syringe 3 in, needle stand 2 is socketed in one end of needle tubing 1, described syringe 3 one end are provided with fixed leg 31, on described needle stand 2 sockets and fixed leg 31, in described needle stand 2, be removably connected with becket 21, the edge of one end of described becket 21 is integrally formed with several blade tooths 22, the direction of described blade tooth 22 dorsad syringe 3 arranges, and the tip of blade tooth 22 forms the circle that a diameter is less than needle stand 2 inner ring diameters.

By adopting technique scheme, by the setting of becket 21 and blade tooth 22, when connecting needle stand 2 and syringe 3, fixed leg 31 will penetrate in needle stand 2, in the process of wearing, fixed leg 31 will pass through becket 21, strut the tip of blade tooth 22, when fixed leg 31 arrives the bottom of needle stands 2, both completed being connected between needle stand 2 and syringe 3, when syringe 3 is subject to the power separated with needle stand 2, syringe 3 will produce a motion trend, the direction of motion is needle tubing 1 direction dorsad, at this moment because tip and the fixed leg 31 of blade tooth 22 are closely conflicted, existing syringe 3 and fixed leg 31 all adopt plastic material to make simultaneously, so blade tooth 22 will be embedded in fixed leg 31, fixed leg 31 just can not be drawn out like this, effectively reached an effect that prevents that needle stand 2 from coming off from fixed leg 31, wherein becket 21 is roughly cylindrical, the height of its cylinder is about 1CM, both the thickness of becket 21 was about 1CM, each blade tooth 22 is isosceles triangle sheet, this isosceles triangle sheet base is connected with becket 21, and along with the crooked certain angle of becket 21 meeting, isosceles triangle sheet tilts towards the center of circle of becket 21, and the summit of isosceles triangle sheet is crooked towards the becket center of circle, crooked mode is arc-shaped bend, its angle of inclination is about 25 degree left and right, this angle both can well keep the elasticity of blade tooth 22, blade tooth 22 be can be good at cylinder inconsistent, certainly the mode that this utility model can also adopt needle stand 2 to be threaded with fixed leg 31 reaches the effect of needle stand 2 difficult drop-offs, but this scheme difficulty very when making by automation equipment, thereby the present embodiment does not adopt.

On described needle stand 2 inner ring walls, offer the first cannelure 23, described becket 21 sides are also integrally formed with convex edge, and described convex edge is embedded in the first cannelure 23.

By adopting technique scheme, the width of convex edge is about 0.5CM, convex edge is distributed in the high middle part of becket 21, the groove depth of the first cannelure 23 equals the thickness of convex edge, be about 0.5CM, groove width can be equal to, or greater than the width of convex edge, but unsuitable wide, by the setting of the first cannelure 23 and convex edge, just can effectively becket 21 be embedded in needle stand 2, both becket 21 was fixed in needle stand 2, just do not need the fixed structure of other what complexity has been set, and what binding agent, also convenience very in the process of making syringe 3 and needle stand 2 simultaneously, only becket 21 can need to be completed toward the interior plug of needle stand 2.

The side of described fixed leg 31 also offers the second cannelure 311, in fixed leg 31 penetrates needle stand 2 in, blade tooth 22 is embedded in the second cannelure 311.

By adopting technique scheme, the degree of depth of the second cannelure 311 can arbitrarily arrange, 1 millimeter or other numerical value, but should not be excessively dark, width also can arbitrarily arrange, also unsuitable wide, by the setting of the second cannelure 311, blade tooth 22 just can better be embedded in fixed leg 31, inconsistent with fixed leg 31, better prevents that needle stand 2 from departing from from fixed leg 31.

Described becket 21 is made by rustless steel.

By adopting technique scheme, stainless steel material has the feature that difficulty is got rusty, and is so just not easy to occur because becket 21 gets rusty, and causes syringe antihygienic problem that becomes.

The utlity model has following advantage: by the setting of becket 21 and blade tooth 22, fixed leg 31 penetrate into needle stand 2 interior after, blade tooth 22 will be caught fixed leg 31 firmly, prevent that fixed leg 31 from coming off from the direction of needle tubing 1 dorsad, so just can effectively prevent that needle stand 2 from coming off from syringe 3, by the setting of becket 21 and blade tooth 22, when connecting needle stand 2 and syringe 3, fixed leg 31 will penetrate in needle stand 2, in the process of wearing, fixed leg 31 will pass through becket 21, strut the tip of blade tooth 22, when fixed leg 31 arrives the bottom of needle stands 2, both completed being connected between needle stand 2 and syringe 3, when syringe 3 is subject to the power separated with needle stand 2, syringe 3 will produce a motion trend, the direction of motion is needle tubing 1 direction dorsad, at this moment because tip and the fixed leg 31 of blade tooth 22 are closely conflicted, existing syringe 3 and fixed leg 31 all adopt plastic material to make simultaneously, so blade tooth 22 will be embedded in fixed leg 31, fixed leg 31 just can not be drawn out like this, effectively reached an effect that prevents that needle stand 2 from coming off from fixed leg 31, wherein becket 21 is roughly cylindrical, the height of its cylinder is about 1CM, both the thickness of becket 21 was about 1CM, each blade tooth 22 is isosceles triangle sheet, this isosceles triangle sheet base is connected with becket 21, and along with the crooked certain angle of becket 21 meeting, isosceles triangle sheet tilts towards the center of circle of becket 21, its angle of inclination is about 25 degree left and right, this angle both can well keep the elasticity of blade tooth 22, blade tooth 22 be can be good at cylinder inconsistent, certainly the mode that this utility model can also adopt needle stand 2 to be threaded with fixed leg 31 reaches the effect of needle stand 2 difficult drop-offs, but this scheme difficulty very when making by automation equipment, thereby the present embodiment does not adopt.

The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under this utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under this utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (4)

1. a syringe, comprise needle tubing, needle stand, syringe and push rod, described push rod wear with syringe in, needle stand is socketed in one end of needle tubing, and described syringe one end is provided with fixed leg, on described needle stand socket and fixed leg, it is characterized in that: in described needle stand, be removably connected with becket, the edge of one end of described becket is integrally formed with several blade tooths, the syringe setting dorsad of the direction of described blade tooth, and the tip of blade tooth forms the circle that a diameter is less than needle stand inner ring diameter.

2. syringe according to claim 1, is characterized in that: on described needle stand inner ring wall, offer the first cannelure, described becket side is also integrally formed with convex edge, and described convex edge is embedded in the first cannelure.

3. syringe according to claim 2, is characterized in that: the side of described fixed leg also offers the second cannelure, in fixed leg penetrates needle stand in, blade tooth is embedded in the second cannelure.

4. syringe according to claim 3, is characterized in that: described becket is made by rustless steel.