CN210700171U

CN210700171U - Liquid nitrogen taking and transferring device

Info

Publication number: CN210700171U
Application number: CN201921433181.1U
Authority: CN
Inventors: 谢鑫; 方远鹏; 蒋君梅
Original assignee: Guizhou University
Current assignee: Guizhou University
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-06-09
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses a liquid nitrogen takes transfer device, including getting liquid container, action bars and handle, the liquid nitrogen export has been seted up on getting the bottom face of liquid container be equipped with flow control mechanism on getting the bottom face of liquid container, flow control mechanism includes: the rotating shaft is rotatably arranged in the operating rod, the top end of the rotating shaft extends out of the upper end face of the operating rod, and the bottom end of the rotating shaft extends to the bottom in the liquid taking container; the adjusting plate is movably arranged on the bottom surface of the liquid taking container and is matched with the liquid nitrogen outlet, and the adjusting plate rotates along with the rotation of the rotating shaft so as to adjust the flow of the liquid nitrogen outlet. The device can solve the problems that the upper part of a liquid taking container in the prior art is open, the flow rate can not be adjusted at the lower part, liquid nitrogen is easy to volatilize and leak, the liquid nitrogen is not convenient to pour, and personal safety threats exist.

Description

Liquid nitrogen taking and transferring device

Technical Field

The utility model relates to a liquid nitrogen takes transfer device belongs to liquid nitrogen and takes technical field.

Background

The liquid nitrogen used in the laboratory is subjected to heat preservation treatment, the tank body is usually thick, the tank opening is small and deep, the liquid is directly poured or a common liquid taking device is generally used, the operation is extremely inconvenient, and potential safety hazards exist. And the upper portion of the liquid taking container for taking out the liquid nitrogen is opened at present, the flow rate can not be adjusted at the lower part, the liquid nitrogen is easy to volatilize and leak, the liquid nitrogen is not convenient to pour, and personal safety threat also exists.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the utility model provides a transfer device is taken to liquid nitrogen to solve the liquid container upper portion of getting that prior art exists and open, the lower part can not adjust the velocity of flow, and the liquid nitrogen volatilizees easily and leaks, neither is convenient for empty the liquid nitrogen, also has the problem of personal safety threat.

The technical scheme of the utility model is that: the utility model provides a transfer device is taken to liquid nitrogen, includes gets liquid container, action bars and handle, the handle passes through the action bars with it links to each other to get the liquid container, get and seted up the liquid nitrogen export on the bottom face of liquid container be equipped with flow control mechanism on getting the bottom face of liquid container, flow control mechanism includes:

the rotating shaft is rotatably arranged in the operating rod, the top end of the rotating shaft extends out of the upper end face of the operating rod, and the bottom end of the rotating shaft extends to the bottom in the liquid taking container;

the adjusting plate is movably arranged on the bottom surface of the liquid taking container and is matched with the liquid nitrogen outlet, and the adjusting plate is connected to the rotating shaft;

the adjusting plate rotates along with the rotation of the rotating shaft so as to adjust the flow of the liquid nitrogen outlet.

Preferably, a rotating handle is arranged at the top end of the rotating shaft.

Preferably, the adjusting plate is vertically connected to a lower end of the rotating shaft through a connecting arm.

Preferably, a movable cover plate mechanism is arranged at the upper end container opening of the liquid taking container, and the cover plate mechanism comprises:

the container cover is matched with the container opening of the liquid taking container;

the connecting rod is arranged along the direction of the operating rod, and the bottom end of the connecting rod is connected with the container cover;

the return spring is arranged on the operating rod, the deformation direction of the return spring is arranged along the moving direction of the connecting rod, and the upper part of the connecting rod is connected with the return spring;

after the connecting rod is applied with upward force, the spring is compressed and the container cover is driven to move upwards to open the container opening, and the return spring drives the connecting rod to move downwards to cover the container cover on the container opening in a natural state.

Preferably, an upper baffle and a lower baffle are arranged on the operating rod, the return spring is installed between the upper baffle and the lower baffle, through holes are formed in the upper baffle and the lower baffle, and the connecting rod penetrates through the through holes.

Preferably, the container cover is provided with a movable opening matched with the shape of the operating rod.

Preferably, the top end of the connecting rod is provided with an operating handle.

The utility model has the advantages that: when this device got liquid, rotate the regulating plate earlier in order to close the liquid nitrogen export to upwards open the container lid, remove and get liquid container and enter into the liquid nitrogen and get liquid, the container lid moves down and closes the container mouth after the completion, can remove the sample and empty the position with getting liquid container this moment, rotate the regulating plate as required and make liquid nitrogen export size suitable, the liquid nitrogen of suitable speed of outflow can. The device can solve the problems that the upper part of a liquid taking container in the prior art is open, the flow rate can not be adjusted at the lower part, liquid nitrogen is easy to volatilize and leak, the liquid nitrogen is not convenient to pour, and personal safety threats exist. The device is especially suitable for extracting liquid in a container with small caliber and low liquid level.

Drawings

FIG. 1 is a schematic diagram of a liquid nitrogen take and transfer device in one embodiment;

FIG. 2 is a cross-sectional view of a liquid nitrogen take and transfer device in one embodiment;

FIG. 3 is an enlarged schematic view of the upper end of the liquid nitrogen taking and transferring device in FIG. 2;

FIG. 4 is a bottom schematic view of the draw solution container of FIG. 1;

FIG. 5 is a schematic plan view of the container lid of FIG. 1;

FIG. 6 is a schematic view of the regulating plate of FIG. 1;

description of reference numerals:

100 liquid taking containers, 110 operating rods, 120 handles and 130 liquid nitrogen outlets;

200 container cover, 210 connecting rod, 220 restoring spring, 230 operating handle, 240 lower baffle, 250 upper baffle and 260 movable opening;

300 adjusting plate, 310 rotating shaft, 311 connecting arm and 320 rotating handle.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 to 6 are schematic structural views of a liquid nitrogen taking and transferring device according to an embodiment. The liquid nitrogen taking and transferring device in the present embodiment includes a liquid taking container 100, a flow rate adjusting mechanism, and a cover plate mechanism.

The liquid taking container 100 is mainly used for containing liquid nitrogen. Generally, the liquid taking container 100 is an open container, and a plurality of liquid nitrogen outlets 130 are formed on the bottom surface of the container, and liquid nitrogen flows downward from the liquid nitrogen outlets 130. The liquid extraction container 100 is connected to a handle 120 via a lever 110, and the handle 120 can be used to operate the liquid extraction container 100.

And the flow regulating mechanism is arranged on the bottom surface of the liquid taking container 100 and is used for regulating the flow of the liquid nitrogen opening. Including a rotating shaft 310, an adjusting plate 300, and a rotating handle 320.

The rotating shaft 310 is rotatably disposed in the operating rod 110, a top end of the rotating shaft 310 extends out of an upper end surface of the operating rod 110, and a bottom end of the rotating shaft 310 extends to a bottom of the liquid container 100. Specifically, the operating rod 110 is provided with an axial through hole along the length direction thereof, and is rotatably installed in the axial through hole.

And an adjusting plate 300 movably disposed on the bottom surface of the liquid container 100 and matching with the liquid nitrogen outlet 130, the adjusting plate 300 being connected to the rotating shaft 310. Specifically, the adjusting plate 300 is vertically coupled to the lower end of the rotating shaft 310 by a coupling arm 311.

A rotary handle 320 mounted on the top end of the rotary shaft 310. The rotating shaft 310 can be driven to rotate by rotating the handle 320, and the adjusting plate 300 rotates along with the rotation of the rotating shaft 310 to adjust the flow rate of the liquid nitrogen outlet 130.

And the cover plate mechanism is movably arranged at the container opening at the upper end of the liquid taking container 100 and is used for realizing the opening and closing of the container opening. Including a container cover 200, a linkage 210, a return spring 220, an upper stop 250, a lower stop 240, and a lever 230.

The container cover 200 is matched with the container mouth of the liquid taking container 100 and is used for realizing the opening or closing of the container mouth. A movable opening 260 is provided at the mouth of the container to match the outer shape of the operation rod 110 so that the container cover 200 can move up and down along the operation rod 110.

And a link 210 disposed along the direction of the operation lever 110, the link 210 having a bottom end connected to the container cover 200, and the container cover 200 being operable by the link 210.

And a return spring 220 disposed on the operation lever 110, wherein a deformation direction of the return spring 220 is disposed along an active direction of the link 210, and an upper portion of the link 210 is connected to the return spring 220.

And an upper baffle 250 vertically installed on the operation rod 110, the upper baffle 250 having a through hole.

And a lower baffle 240 vertically installed on the operation rod 110, the lower baffle 240 having a through hole.

The return spring 220 is installed between the upper and

lower barriers

250 and 240, the link 210 passes through the through-hole,

and an operating handle 230 installed at the top end of the link 210. When the operating handle 230 is lifted upwards, the link rod 210 is applied with an upward force, the return spring 220 is compressed and the container cover 200 is driven to move upwards to open the container opening, and the return spring 220 drives the link rod 210 to move downwards to cover the container cover 200 on the container opening in a natural state.

When liquid is taken, the adjusting plate 300 is rotated to close the liquid nitrogen outlet 130, the container cover 200 is opened upwards, the liquid taking container 100 is moved to enter liquid nitrogen to take liquid, the container cover 200 moves downwards to close the container opening after liquid taking is completed, the liquid taking container 100 can be moved to a sample pouring position at the moment, the adjusting plate 300 is rotated according to requirements to enable the liquid nitrogen outlet 130 to be proper in size, and liquid nitrogen with proper speed flows out.

The description is more specific and detailed but should not be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a transfer device is taken to liquid nitrogen, includes gets liquid container (100), action bars (110) and handle (120), handle (120) pass through action bars (110) with get liquid container (100) and link to each other, liquid nitrogen export (130) have been seted up on the bottom surface of getting liquid container (100), its characterized in that get and be equipped with flow control mechanism on the bottom surface of liquid container (100), flow control mechanism includes:

the rotating shaft (310) is rotatably arranged in the operating rod (110), the top end of the rotating shaft (310) extends out of the upper end face of the operating rod (110), and the bottom end of the rotating shaft (310) extends to the bottom in the liquid taking container (100);

the adjusting plate (300) is movably arranged on the bottom surface of the liquid taking container (100) and is matched with the liquid nitrogen outlet (130), and the adjusting plate (300) is connected to the rotating shaft (310);

the adjusting plate (300) rotates along with the rotation of the rotating shaft (310) to adjust the flow of the liquid nitrogen outlet (130).

2. The liquid nitrogen taking and transferring device as claimed in claim 1, wherein a rotating handle (320) is provided at the top end of the rotating shaft (310).

3. The liquid nitrogen taking and transferring device as claimed in claim 1, wherein the adjusting plate (300) is vertically connected to the lower end of the rotating shaft (310) through a connecting arm (311).

4. The liquid nitrogen taking and transferring device as claimed in claim 1, wherein a movable cover plate mechanism is arranged at the upper end container opening of the liquid taking container (100), and comprises:

a container lid (200) that fits to the container mouth of the liquid container (100);

the connecting rod (210) is arranged along the direction of the operating rod (110), and the bottom end of the connecting rod (210) is connected with the container cover (200);

the return spring (220) is arranged on the operating rod (110), the deformation direction of the return spring (220) is arranged along the moving direction of the connecting rod (210), and the upper part of the connecting rod (210) is connected with the return spring (220);

after the connecting rod (210) receives upward force, the spring is compressed and the container cover (200) is driven to move upwards to open the container opening, and the return spring (220) drives the connecting rod (210) to move downwards to cover the container cover (200) on the container opening in a natural state.

5. The liquid nitrogen taking and transferring device as claimed in claim 4, wherein an upper baffle plate (250) and a lower baffle plate (240) are arranged on the operating rod (110), the return spring (220) is installed between the upper baffle plate (250) and the lower baffle plate (240), and through holes are formed in the upper baffle plate (250) and the lower baffle plate (240), and the connecting rod (210) penetrates through the through holes.

6. The liquid nitrogen taking and transferring device as claimed in claim 4, wherein the container cover (200) is provided with a movable opening (260) matched with the shape of the operating rod (110).

7. The liquid nitrogen taking and transferring device as claimed in claim 4, wherein the top end of the connecting rod (210) is provided with an operating handle (230).