CN212228420U - Sampling device for conical bottle - Google Patents

Abstract

The application relates to the technical field of experimental devices, discloses a erlenmeyer flask sampling device, includes: a body; the clamping part is arranged at the tail end of the body and comprises two side walls which are connected together in a hinge shape, and the two side walls can rotate relatively along the connection part in a controlled manner to realize the switching between an opening position and a closing position; the control part is arranged on the body, is connected with the clamping part and is used for controlling the switching of the clamping part between an opening position and a closing position. Therefore, the conical flask does not need to be toppled over any more, and the sample in the upright state of the conical flask can be taken and put.

Description

Sampling device for conical bottle

Technical Field

The application relates to the technical field of experimental devices, for example to a erlenmeyer flask sampling device.

Background

Erlenmeyer flasks are widely used in various fields of detection, such as chemistry and biology, and usually contain samples and solutions inside. Because the mouth of the conical flask is small, when a sample in the conical flask needs to be taken out, a handle cannot be directly inserted into the conical flask to remove the sample, and meanwhile, when the sample is taken out by using a tool such as a clamp or a pair of tweezers, the sample is difficult to be rapidly clamped and removed because the opening and closing angle of a common clamp or a pair of tweezers is small. At present, the common practice is to pour out the erlenmeyer flask and then pour out the sample, at this moment, the solution in the erlenmeyer flask will also pour out with it, cause the waste.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a conical flask sampling device to solve the technical problem of solution waste in the existing sampling mode.

In some embodiments, the erlenmeyer flask sampling device comprises: a body; the clamping part is arranged at the tail end of the body and comprises two side walls which are connected together in a hinge shape, and the two side walls can rotate relatively along the connection part in a controlled manner to realize the switching between an opening position and a closing position; the control part is arranged on the body, is connected with the clamping part and is used for controlling the switching of the clamping part between an opening position and a closing position.

The utility model provides a erlenmeyer flask sampling device can realize following technological effect: the clamping part of hinge form can realize opening and closed under the control of control division, earlier during the sample with the clamping part closure in order smoothly to pass through the narrow and small bottleneck of erlenmeyer flask, gets into the inside back of erlenmeyer flask and opens clamping part and closed once more and clip the sample, takes out from the bottleneck at last, no longer need topple over the erlenmeyer flask like this, can realize that the sample of erlenmeyer flask upright state is got and is put, has solved the extravagant problem of solution.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

FIG. 1 is a schematic view of a conical flask sampling device provided by an embodiment of the present disclosure;

reference numerals:

1: a conical flask; 2: a sample; 31: a body; 32: a clamping portion; 321: a right side wall; 322: a left side wall; 33: a power transmission member; 34: an elastic auxiliary member; 341: a second stopper; 342: a spring; 343: a first stop member.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

As shown in FIG. 1, in some embodiments the erlenmeyer flask sampling device comprises a body 31, a grip 32 and a control (not shown).

Wherein the body 31 is generally of elongate configuration to accommodate the elongate neck of a conventional erlenmeyer flask 1. Optionally, the length of the body 31 is greater than the length of the neck of the erlenmeyer flask 1. Optionally, a holding portion is disposed at the end of the body 31 for the operator to hold, and the surface of the holding portion may be provided with an anti-slip structure, for example, a plurality of protrusions are disposed or a surface of the holding portion is coated with an anti-slip material.

The holding part 32 is arranged at the end of the body 31 opposite to the holding part and comprises two side walls which are connected together in a hinge shape, and the two side walls can be controlled to relatively rotate along the connection part to realize the switching of an opening position and a closing position. The two side walls of the holding portion 32 may be fixed by rotating one of the side walls relative to the fixed side wall, for example, the right side wall 321 is fixedly disposed at the end of the body 31 along the vertical direction, and the top end of the left side wall 322 is pivotally connected to the top end of the right side wall 321. The holding portion 32 may be formed in such a manner that both side walls are not fixed, for example, the left side wall 322 and the right side wall 321 are pivotally connected at the top end, and are pivotally fixed to the distal end of the body 31. Optionally, the axis along which the two side walls rotate relative to each other is perpendicular to the longitudinal direction of the body 31. In this way, the range of movement of the gripping portion 32 within the erlenmeyer flask 1 can be increased, making sampling more flexible.

The control part is arranged on the body 31, connected with the clamping part 32 and used for controlling the clamping part 32 to switch between an opening position and a closing position. Optionally, the control portion includes a control handle or a control switch, and is disposed at an end of the body 31 opposite to the clamping portion 32, and the control of the clamping portion 32 can be realized by operating the control handle or the control switch. Because the control handle or the control switch is arranged at one end of the body 31 opposite to the clamping part 32, namely the holding end, in this way, when sampling is carried out, an operator can realize sampling operation only by one hand.

In some embodiments, the control portion includes a power transmission 33. The power transmission member 33 is elongated and disposed along the extending direction of the body 31, and has one end connected to the holding portion 32, and controls the opening or closing of the holding portion 32 by moving in its own axial direction. When the two side walls of the holding portion 32 are fixed to the right side wall 321 and the left side wall 322 is pivoted, the power transmission member 33 is hinged to the left side wall 322, and the left side wall 322 is pivoted by the movement of the power transmission member 33 in the axial direction thereof. When the two side walls of the clamping portion 32 are not fixed, the power transmission member 33 forms two branches at the tail end, the two branches are respectively hinged with the two side walls, and the two side walls are driven to rotate relatively by the movement of the power transmission member 33 along the self axial direction.

In some embodiments, the grip portion 32 switches to the closed position when the power transmission member 33 moves in a direction away from the grip portion 32. Since the specimen 2 is held when the holding portion 32 is closed, the force required at this time acts more, and it is more convenient for the operator to move the power transmission member 33 in the direction away from the holding portion 32, so that the holding portion 32 is set to switch to the closed position when the power transmission member 33 is moved in the direction away from the holding portion 32.

In some embodiments, the gripping portion 32 is configured to be in its natural state in an expanded state. Alternatively, the clamping portion 32 is provided with a torsion spring, and two ends of the torsion spring are fixedly connected to two side walls of the clamping portion 32 respectively. The torsion spring is sleeved on the pivot of the clamping part 32, two ends of the torsion spring are fixedly connected with two side walls of the clamping part 32 respectively in a clamping or welding mode, and the two side walls are in an opening state under the action of elastic force of the torsion spring in a natural state. Alternatively, the inner walls of the two side walls of the holding portion 32 may comprise a layer of elastic material, for example, a layer of rubber is adhered to the inner walls of the two hinged side walls, and the two side walls are in an opened state under the natural state under the elastic force of the rubber.

In some embodiments, the control portion further comprises a resilient auxiliary 34. The elastic auxiliary member 34 is disposed along the axial direction of the power transmission member 33, and the elastic auxiliary member 34 is compressed when the power transmission member 33 moves in a direction away from the grip portion 32 and generates an elastic force that drives the power transmission member 33 to return to its original position. Thus, the operator only needs to apply force in a single direction to the power transmission member 33 during operation, and the force in the other direction is applied through the elastic auxiliary member 34, so that the operation difficulty is greatly reduced.

In some embodiments, the elastic assistant 34 includes a first stopper 343, a second stopper 341, and a spring 342. The first stopper 343 is fixedly disposed on the power transmission member 33, and optionally, the first stopper 343 is a plate-shaped structure and is vertically disposed on the power transmission member 33. The second stopper 341 is fixedly disposed on the body 31, and optionally, the second stopper 341 is a plate-shaped structure and is vertically disposed on the body 31. The spring 342 is clamped between the first stop member 343 and the second stop member 341, one end of the spring 342 abuts against the first stop member 343, and the other end abuts against the second stop member 341 and is sleeved on the periphery of the power transmission member 33. Along with the movement of the power transmission member 33 along its own axial direction, the first stop member 343 is driven to move toward the second stop member 341, so that the spring 342 sandwiched therebetween is compressed, thereby generating an elastic force to urge the power transmission member 33 to return to the original position.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in or substituted for those of others. Each embodiment may be described with emphasis on differences from other embodiments, and like parts may be referred to each other between the respective embodiments. As used in this application, although the terms "first," "second," etc. may be used in this application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, unless the meaning of the description changes, so long as all occurrences of the first element are renamed consistently and all occurrences of the second element are renamed consistently. The first and second elements are both elements, but may not be the same element.

Claims (9)

1. A erlenmeyer flask sampling device, comprising:

a body;

the clamping part is arranged at the tail end of the body and comprises two side walls which are connected together in a hinge shape, and the two side walls can rotate relatively along the connection part in a controlled manner to realize the switching between an opening position and a closing position;

the control part is arranged on the body, is connected with the clamping part and is used for controlling the clamping part to switch between an opening position and a closing position.

2. The erlenmeyer flask sampling device according to claim 1, wherein the control section comprises:

the power transmission piece is in a slender shape and is arranged along the extending direction of the body, one end of the power transmission piece is connected with the clamping part, and the power transmission piece controls the clamping part to be opened or closed through the axial movement along the power transmission piece.

3. The erlenmeyer flask sampling device according to claim 2, characterized in that the clamping part is switched to the closed position when the power transmission element is moved in a direction away from the clamping part.

4. The erlenmeyer flask sampling device according to claim 2, characterized in that the power transmission member is a rigid rod, one end of which is hinged to the grip.

5. The erlenmeyer flask sampling device according to claim 1, wherein the clamp is naturally in an open state.

6. The erlenmeyer flask sampling device according to claim 5, wherein the clamp portion further comprises:

and two ends of the torsion spring are respectively and fixedly connected to the two side walls of the clamping part.

7. The erlenmeyer flask sampling device according to claim 5, wherein the inner walls of the two side walls of the grip portion comprise a layer of resilient material.

8. The erlenmeyer flask sampling device according to claim 2, wherein the control section further comprises:

the elastic auxiliary piece is arranged along the axial direction of the power transmission piece, and the elastic auxiliary piece is compressed when the power transmission piece moves in the direction departing from the clamping part and generates elastic force for driving the power transmission piece to recover the original position.

9. The erlenmeyer flask sampling device according to claim 8, wherein the resilient auxiliary comprises:

a first stopper fixedly provided on the power transmission member;

the second stop piece is fixedly arranged on the body;

and the spring is clamped between the first stop part and the second stop part and is sleeved on the periphery of the power transmission piece.

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