CN210028621U - Novel closed syringe - Google Patents

Abstract

The utility model discloses a novel closed syringe, which has simple mechanism, reasonable design, adopts sealing and short piston design, well solves the problem of air leakage, shortens the length by nearly half compared with the prior traditional syringe, thereby improving the accuracy of test data and the space and cost of storage and transportation; the technical scheme is as follows: a novel closed needle cylinder is characterized in that a liquid storage bag is movably arranged in a cylinder body, the liquid storage bag can stretch out and draw back along the axis of the cylinder body in the cylinder body, a liquid outlet is formed in one end of the cylinder body, the liquid outlet is communicated with a liquid outlet pipe corresponding to the end portion of the liquid storage bag, a piston is arranged at the other end of the cylinder body, the piston is movably inserted into the cylinder body, a guide groove is formed in the side wall of the cylinder body, a sliding block is arranged on the piston, the sliding block is arranged on the guide groove in a matched mode and can axially reciprocate along the cylinder body along the guide groove, a torsion spring is arranged between; the utility model discloses but wide application in liquid shifts temporary storage field.

Description

Novel closed syringe

Technical Field

The utility model relates to a novel closed cylinder belongs to liquid and shifts temporary storage technical field.

Background

Liquid transfer is used in a wide variety of fields, such as medical, chemical, petroleum, and the like. The needle cylinder is needed to be used under many conditions, and the needle cylinder has the functions of conveniently and quickly sucking and draining liquid as a liquid transfer tool, and integrating transfer and temporary storage. However, the conventional syringe injector has some disadvantages in its mechanical characteristics, mainly the conventional syringe is composed of a cylinder body and a piston rod therein separated from each other, and a certain gap exists between the cylinder body and the piston rod, which may cause the liquid stored therein to be contaminated by air permeating through the gap, which greatly affects data of electric power industry, dissolved gas content in oil, and the like. Although some needle cartridges are sanded on both sides, the problem is still not completely solved. Besides the problem of air leakage, the traditional syringe occupies more transportation space, and the length of the traditional syringe is changed to be nearly twice of the original length after the traditional syringe is filled with liquid, so that the transportation cost is increased due to the occupied space. These problems have not been solved well.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes prior art exists not enough, provides a novel closed cylinder, and the mechanism is simple, and reasonable in design adopts sealedly, short piston design, fine solution gas leakage problem, compares length with current traditional cylinder and has shortened nearly half to the accuracy of test data and the space and the cost of storage transportation have been improved.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a novel closed cylinder, includes barrel and liquid reserve bag, the liquid reserve bag activity sets up in the barrel, just the liquid reserve bag can stretch out and draw back along the barrel axis in the barrel, the one end of barrel is provided with the liquid outlet, the liquid outlet communicates with the drain pipe that corresponds the liquid reserve bag tip, the other end of barrel is provided with the piston, piston activity cartridge is in the barrel, be provided with the guide slot on the lateral wall of barrel, be provided with the slider on the piston, the setting that the slider matches is on the guide slot to can follow the guide slot along barrel axial reciprocating motion, be provided with the torsional spring between slider and the piston, the slider locks on the barrel outer wall under the effect of torsional spring.

The liquid storage bag comprises a liquid storage bag and is characterized in that a plurality of hard annular supports are arranged on the bag wall of the liquid storage bag, a front hard support and a rear hard support are respectively arranged at the front end and the rear end of the liquid storage bag, the front hard support at the liquid outlet pipe end of the liquid storage bag is adhered to the barrel wall of the barrel, and the rear hard support is connected with a piston.

The piston comprises an outer piston and an inner piston, the outer piston and the inner piston are connected together, the outer piston is inserted into the end of the cylinder, the sliding block is arranged on the outer piston, the inner piston is inserted into the liquid storage bag, and the liquid storage bag is forced to stretch and retract by pushing and pulling the piston to discharge and extract liquid.

The length of the inner piston is the same as the length of the folded reservoir.

The rear hard support is detachably connected with the outer piston through a screw, and is used for facilitating cleaning of the interior of the liquid storage bag.

Compared with the prior art, the utility model beneficial effect who has is: the utility model discloses the mechanism is simple, reasonable in design, adopts sealedly, and short piston design, fine solution gas leakage problem compare length with current traditional cylinder and shortened nearly half to the accuracy of test data and the space and the cost of storage transportation have been improved.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of the present invention, i.e., an exploded view of the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is a cross-sectional view of the present invention.

Fig. 4 is a schematic diagram illustrating the normality of the present invention.

In the figure: 1 is a cylinder, 2 is a liquid storage bag, 3 is a liquid outlet pipe, 4 is a piston, 41 is an outer piston, 42 is an inner piston, 5 is a guide groove, 6 is a sliding block, 7 is a torsion spring, 8 is a hard annular support, 9 is a front hard support, and 10 is a rear hard support.

Detailed Description

As shown in fig. 1-4, the utility model relates to a novel closed cylinder, including barrel 1 and reservoir 2, the activity of reservoir 2 sets up in barrel 1, just reservoir 2 can stretch out and draw back along barrel 1 axis in barrel 1, the one end of barrel 1 is provided with the liquid outlet, the liquid outlet communicates with the drain pipe 3 that corresponds 2 tip of reservoir, the other end of barrel 1 is provided with piston 4, piston 4 activity cartridge is in barrel 1, be provided with guide slot 5 on the lateral wall of barrel 1, be provided with slider 6 on the piston 4, the setting that slider 6 matees is on guide slot 5 to can follow guide slot 5 along 1 axial reciprocating motion of barrel, be provided with torsional spring 7 between slider 6 and the piston 4, slider 5 locks on the outer wall of barrel 1 under torsional spring 7's effect.

The liquid storage device is characterized in that a plurality of hard annular supports 8 are arranged on the wall of the liquid storage bag 2, a front hard support 9 and a rear hard support 10 are respectively arranged at the front end and the rear end of the liquid storage bag 2, the front hard support 9 at the liquid outlet pipe 3 end of the liquid storage bag 2 is adhered to the wall of the barrel 1, and the rear hard support 10 is connected with the piston 4.

The piston 4 comprises an outer piston 41 and an inner piston 42, the outer piston 41 and the inner piston 42 are connected together, the outer piston 41 is inserted into the end of the cylinder 1, the sliding block 6 is arranged on the outer piston 41, the inner piston 42 is inserted into the liquid storage bag 2, and the liquid storage bag 2 is forced to stretch and retract by pushing and pulling the piston 4 to discharge and extract liquid.

The length of the inner piston 42 is the same as the length of the folded reservoir 2.

The rear hard support 10 is detachably connected with the outer piston 41 through a screw, so that the interior of the liquid storage bag 2 can be conveniently cleaned.

The utility model discloses the mechanism is simple, reasonable in design, adopts sealedly, and short piston design, fine solution gas leakage problem compare length with current traditional cylinder and shortened nearly half to the accuracy of test data and the space and the cost of storage transportation have been improved.

The present invention will be further described with reference to the following specific embodiments.

The cylinder is used for supporting the inner liquid storage bag and also used as a force application point handle for moving and taking liquid, and the guide groove is used as a spring buckle, namely a movable channel of the sliding block. The liquid storage bag is made of soft elastic transparent material as a liquid containing main body, and the hard support ring is used for supporting the liquid storage bag to prevent the liquid storage bag from collapsing inwards. When the piston in the bag pushes the liquid outwards, the soft liquid storage bag can be compressed to a certain thickness, and the liquid in the soft liquid storage bag can be pushed out continuously by the piston in the bag, so that the dead volume is reduced. The torsional spring is used for the location to let the cylinder absorb and extrude the liquid of arbitrary volume, press the both sides snak link unblock and absorb or push out the operation, loosen the snak link and carry out locking and fixing. The piston outside the bag is used as a force application part when liquid is transferred and also as a protective part of the soft pancake.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (5)

1. The novel closed needle cylinder is characterized by comprising a cylinder body (1) and a liquid storage bag (2), wherein the liquid storage bag (2) is movably arranged in the cylinder body (1), the liquid storage bag (2) can stretch out and draw back along the axis of the cylinder body (1) in the cylinder body (1), one end of the cylinder body (1) is provided with a liquid outlet, the liquid outlet is communicated with a liquid outlet pipe (3) corresponding to the end part of the liquid storage bag (2), the other end of the cylinder body (1) is provided with a piston (4), the piston (4) is movably inserted in the cylinder body (1), a guide groove (5) is arranged on the side wall of the cylinder body (1), a sliding block (6) is arranged on the piston (4), the sliding block (6) is arranged on the guide groove (5) in a matching manner and can axially reciprocate along the cylinder body (1) along the guide groove (5), and a torsion spring (7) is arranged between the sliding block (6) and, the sliding block (6) is locked on the outer wall of the cylinder body (1) under the action of the torsion spring (7).

2. The novel closed syringe as claimed in claim 1, wherein the wall of the reservoir (2) is provided with a plurality of hard annular supports (8), the front and rear ends of the reservoir (2) are respectively provided with a front hard support (9) and a rear hard support (10), the front hard support (9) at the end of the liquid outlet pipe (3) of the reservoir (2) is adhered to the wall of the barrel (1), and the rear hard support (10) is connected to the piston (4).

3. The novel closed syringe as claimed in claim 2, wherein the piston (4) comprises an outer piston (41) and an inner piston (42), the outer piston (41) and the inner piston (42) are connected together, the outer piston (41) is inserted into the end of the barrel (1), the slider (6) is arranged on the outer piston (41), the inner piston (42) is inserted into the reservoir (2), and the reservoir (2) is forced to stretch and retract by pushing and pulling the piston (4) to discharge and extract the liquid.

4. A new closed syringe as claimed in claim 3, characterised in that the length of the inner piston (42) is the same as the length of the folded reservoir (2).

5. A new type of closed syringe as claimed in claim 4, wherein the rear rigid support (10) is detachably connected to the outer piston (41) by a screw for facilitating the cleaning of the inside of the reservoir (2).

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