CN216856760U - Pipettor for clinical examination - Google Patents

Abstract

The utility model discloses a clinical-examination pipette, which comprises a gun body, wherein an adjusting cavity and a piston cavity are formed in the gun body, a piston is connected in the piston cavity in a sliding manner, a connecting rod with a pushing part at one end and a piston connected at the other end is connected on the gun body in a sliding manner, a piston pressure spring arranged in the piston cavity is arranged at the other end of the piston, a liquid-transferring suction head is arranged on the gun body, a driven bulge is arranged on the connecting rod, a driving pressing block is arranged at one end, opposite to the piston, of the driven bulge, an adjusting column is connected on the gun body in a sliding manner, a spring hole is formed in the gun body, a pressing block pressure spring with one end abutting against the driving pressing block and the other end provided with a plug is embedded in the spring hole, a row of gear holes distributed along the length direction of the gear holes are formed in the side surface of the adjusting column, and an elastic pull pin is provided with a ring arranged outside the gun body and a limiting pin inserted into one gear hole. This pipettor has the one hand and realizes the gear and adjust, moves the nimble convenient characteristics of liquid, and overall function is perfect, and the practicality is strong.

Description

Pipettor for clinical examination

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a pipette for clinical examination.

Background

The liquid transfer device, also called a liquid transfer gun, is a metering tool for transferring liquid from an original container to another container within a certain range. Is widely used in the fields of biology, chemistry and the like.

Pipettor on the market can't realize the ration mostly and move the liquid, even have a small part can realize the ration and move the liquid function under the condition that the gear was adjusted, but the accommodation process needs both hands collaborative operation, and is loaded down with trivial details time-consuming, and whole effect is not good. Accordingly, the utility model provides a pipette for clinical examination.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a pipette for clinical examination, which has the characteristics of gear adjustment realized by one hand and flexible and convenient pipetting.

In order to solve the technical problem, the utility model aims to realize that: the utility model relates to a clinical examination pipettor, which comprises a gun body, wherein an adjusting cavity and a piston cavity are arranged in the gun body, a piston is connected in the piston cavity in a sliding manner, a connecting rod with a pushing part at one end and a piston connected at the other end is connected on the gun body in a sliding manner, a piston pressure spring arranged in the piston cavity is arranged at the other end of the piston, a liquid-moving suction head communicated with the inner part of the piston cavity is arranged on the gun body, a driven bulge extending into the adjusting cavity is arranged on the connecting rod, a driving pressing block is arranged at one end of the driven bulge opposite to the piston, an adjusting column with one end connected with the driving pressing block is connected on the gun body in a sliding manner, a spring hole is arranged on the gun body, a pressing block pressure spring with one end abutting against the driving pressing block and the other end provided with a plug is embedded in the spring hole, a row of gear holes arranged along the length direction of the adjusting column is arranged on the side surface of the gun body, an elastic pull pin is arranged on the side surface of the gun body, the elastic pull pin is provided with a ring arranged outside the gun body and a limit pin inserted into a gear hole.

The utility model is further configured to: the front of adjusting the post is equipped with the gear mark that matches with the gear hole one by one, be equipped with the window that supplies one of them gear mark to expose on the rifle body.

The utility model is further configured to: the hole wall of the spring hole is distributed with internal threads, and the plug is in threaded connection with the spring hole.

The utility model is further configured to: and fins are respectively arranged on two sides of the gun body.

In conclusion, the utility model has the following beneficial effects: the pipette for clinical examination related by the utility model is characterized in that a finger ring is extended by a single finger, an elastic pull pin is pulled, a limit pin on the pipette is separated from a corresponding gear hole, and a hand is matched with a push connecting rod, so that the function of gear adjustment is realized by a single hand; not only reach the ration and move the effect of liquid, can also adjust moving the liquid volume, it is nimble convenient to use, and overall function is perfect, and the practicality is strong.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a partial structural schematic diagram of the present invention.

Detailed Description

For a better understanding of the technical solutions of the present invention, the following preferred embodiments of the present invention are described in conjunction with the specific examples, but it should be understood that the descriptions are only for the purpose of further illustrating the features and advantages of the present invention, and are not intended to limit the patent claims of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model will be further described with reference to the accompanying drawings and preferred embodiments.

Example 1

Referring to fig. 1 and 2, a pipette for clinical examination according to this embodiment includes a gun body 1, an adjusting cavity 2 and a piston cavity 3 are formed in the gun body 1, a piston 4 is slidably connected in the piston cavity 3, a connecting rod 6 having a pushing part 5 at one end and connected to the piston 4 at the other end is slidably connected to the gun body 1, a piston compression spring 7 disposed in the piston cavity 3 is disposed at the other end of the piston 4, a pipette tip 8 communicated with the interior of the piston cavity 3 is disposed on the gun body 1, a driven protrusion 9 extending into the adjusting cavity 2 is disposed on the connecting rod 6, a driving pressing block 10 is disposed at one end of the driven protrusion 9 opposite to the piston 4, an adjusting column 11 having one end connected to the driving pressing block 10 is slidably connected to the gun body 1, a spring hole 12 is formed in the gun body 1, a pressing block 14 having one end abutting against the driving pressing block 10 and the other end provided with a plug 13 is embedded in the spring hole 12, a row of gear holes 15 arranged along the length direction of the adjusting column 11 are formed in the side surface of the adjusting column, an elastic pull pin 16 is arranged on the side surface of the gun body 1, and the elastic pull pin 16 is provided with a finger ring 17 arranged outside the gun body 1 and a limit pin 18 inserted into one gear hole 15.

Furthermore, gear position identifiers 19 matched with the gear position holes 15 one by one are arranged on the front surface of the adjusting column 11, and a window 20 for exposing one of the gear position identifiers 19 is arranged on the gun body 1.

Furthermore, internal threads are distributed on the wall of the spring hole 12, and the plug 13 is connected to the spring hole 12 in a threaded mode.

Furthermore, both sides of the gun body 1 are respectively provided with a wing 21.

In the embodiment, a finger ring 17 is inserted by a single finger, the elastic pull pin 16 is pulled, the upper limit pin 18 is separated from the corresponding gear hole 15, the pushing part 5 on the connecting rod 6 is pushed and pressed by a hand, the driven protrusion 9 is separated from the driving pressing block 10, the pressing block pressing spring 14 is deformed and reset, the driving pressing block 10 and the upper adjusting column 11 thereof are pushed, the position of the gear hole 15 is changed, after the adjustment is finished, the elastic pull pin 16 is pulled and released, the upper limit pin 18 is inserted into the gear hole 15 again, the gear adjustment is finished, and the single liquid displacement amount is changed.

Wherein, the gear position identifier 19 is matched with the arrangement of the window 20, so that the gear position adjusting condition can be conveniently and visually perceived.

The plug 13 is in threaded connection with the spring hole 12, so that the screwing-in depth of the plug 13 in the spring hole 12 is adjustable, and the tension of the pressing block compression spring 14 is adjusted.

Wherein, the setting of fin 21 facilitates the use pipettor and draws liquid.

The clinical examination pipettor provided by the utility model has the advantages that a finger ring is stretched into by a single finger, the elastic pull pin is pulled, the limiting pin on the pipettor is separated from the corresponding gear hole, and the hand is matched with the hand push connecting rod, so that the function of gear adjustment by a single hand is realized; not only reach the ration and move the effect of liquid, can also adjust moving the liquid volume, it is nimble convenient to use, and overall function is perfect, and the practicality is strong.

Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship actually shown, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, it is possible for those skilled in the art to combine the embodiments and understand the specific meanings of the above terms according to specific situations.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the above teachings. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (4)

1. The utility model provides a pipettor for clinical examination, includes the rifle body, has seted up regulation chamber and piston cavity in the rifle body, and sliding connection has the piston in the piston cavity, sliding connection has one end to be equipped with the connecting rod that bulldozes the portion, the other end and connect the piston on the rifle body, the other end of piston is equipped with the piston pressure spring of establishing in the piston cavity, be equipped with the liquid-transfering suction head that communicates with piston cavity inside on the rifle body, its characterized in that: be equipped with on the connecting rod and stretch into the driven arch of adjusting the chamber, driven arch dorsad the one end of piston is equipped with initiative briquetting, sliding connection has the regulation post of initiative briquetting is connected to one end on the rifle body, seted up the spring hole on the rifle body, the spring is downthehole to have buried one end underground and supports initiative briquetting, the other end are equipped with the briquetting pressure spring of end cap, the side of adjusting the post is seted up one and is made the gear hole of arranging along its length direction, the side of the rifle body is equipped with the elasticity and draws the round pin, and the elasticity draws the round pin to have and establishes at the external ring of rifle, insert the spacer pin in a gear hole.

2. The pipette for clinical examination according to claim 1, wherein: the front of adjusting the post is equipped with the gear mark that matches one by one with the gear hole, be equipped with the window that supplies one of them gear mark to expose on the rifle body.

3. The pipette for clinical examination according to claim 1 or 2, characterized in that: the hole wall of the spring hole is distributed with internal threads, and the plug is in threaded connection with the spring hole.

4. The pipette for clinical examination according to claim 3, characterized in that: and fins are respectively arranged on two sides of the gun body.

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