CN217687387U - Device for measuring height of liquid nitrogen in liquid nitrogen tank - Google Patents
Device for measuring height of liquid nitrogen in liquid nitrogen tank Download PDFInfo
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- CN217687387U CN217687387U CN202221380670.7U CN202221380670U CN217687387U CN 217687387 U CN217687387 U CN 217687387U CN 202221380670 U CN202221380670 U CN 202221380670U CN 217687387 U CN217687387 U CN 217687387U
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- liquid nitrogen
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Abstract
The utility model discloses a device for measuring the height of liquid nitrogen in a liquid nitrogen tank, which comprises a measuring cylinder, a floating part and a bracket, wherein the measuring cylinder is provided with a measuring cavity with an open upper end, the side wall or/and the bottom wall of the measuring cylinder are/is provided with through holes which can be communicated with the measuring cavity, and at least part of the measuring cylinder can be arranged in the liquid nitrogen tank; the lower end of the floating piece is arranged in the measuring cavity, the upper end of the floating piece penetrates through the opening of the measuring cavity and then is exposed, and the floating piece is provided with a scale; the support sets up the lower extreme at a measuring cylinder, and the free end of support outwards extends in order to form the spacing portion that can freeze the case contact in with the hand-basket. During the use, the operator makes the support transfer along the hand-basket railing, and slow descending device is until can not descend, and support this moment and the up end contact that lies in the hand-basket the box is deposited to the top freeze, treat that floating part stands the back, reads the scale mark of scale and just can know the height between the box is deposited to the freeze of liquid nitrogen and the superiors fast, easy operation, extensive applicability, user experience is good.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, more specifically say, relate to a measure device of liquid nitrogen height in liquid nitrogen jar.
Background
Cell cryopreservation is a technique for placing cells in a low-temperature environment, reducing cell metabolism and facilitating long-term storage. Cell cryopreservation is one of the main methods for cell preservation. At present, the commonly used method is that the cryopreservation boxes storing cells are suspended in a liquid nitrogen tank in a layering manner through a basket, and the cryopreservation boxes in the basket are immersed by liquid nitrogen in the liquid nitrogen tank. Since the liquid nitrogen stored in the liquid nitrogen tank is naturally consumed, the content of the liquid nitrogen in the liquid nitrogen tank needs to be checked periodically. Because the cryopreservation box for storing the sample is longitudinally suspended in the liquid nitrogen tank, the currently common detection device aims at detecting the height of liquid nitrogen in the liquid nitrogen tank, and cannot detect the height between the liquid nitrogen and the cryopreservation box at the uppermost layer, so that when the liquid nitrogen is insufficiently added, the cryopreservation box at the uppermost layer cannot be completely soaked in the liquid nitrogen, and the storage quality of the biological sample is reduced.
SUMMERY OF THE UTILITY MODEL
A primary object of the utility model is to provide a measure device of liquid nitrogen height in liquid nitrogen container, through the freezing box contact of superiors in support and the hand-basket, the floating member shows that liquid nitrogen face and superiors freeze the height between the box.
According to the utility model discloses an aspect provides a measure device of liquid nitrogen height in liquid nitrogen jar, include:
the liquid nitrogen measuring device comprises a measuring cylinder, a liquid nitrogen tank and a liquid nitrogen pump, wherein the measuring cylinder is provided with a measuring cavity with an open upper end, the side wall or/and the bottom wall of the measuring cylinder is/are provided with through holes capable of being communicated with the measuring cavity, and at least part of the measuring cylinder can be arranged in the liquid nitrogen tank;
the lower end of the floating piece is arranged in the measuring cavity, the upper end of the floating piece penetrates through the opening of the measuring cavity and then is exposed, and the floating piece is provided with a scale;
the support, the support sets up the lower extreme at a measuring section of thick bamboo, and the free end of support outwards extends in order to form the spacing portion that can freeze the box contact in with the hand-basket.
In a specific embodiment of the present invention, the limiting portion is a lower end surface of the bracket, and the lower end surface of the bracket is located at the same horizontal plane as the inner bottom wall of the measuring cavity.
In a particular embodiment of the invention, the float member comprises a float at least partially disposed in the measurement chamber, the scale being disposed on an outer surface of the float.
In a particular embodiment of the invention, the lower end of the float is connected to a float, the outer diameter of which is smaller than the inner diameter of the measuring cylinder.
In a specific embodiment of the present invention, the scale is provided with a numerical value, or the scale is provided with a plurality of reference height blocks expressed by different colors.
In a particular embodiment of the present invention, the free end of the bracket includes a first portion and a second portion, and an avoidance groove is formed between the first portion and the second portion for avoiding the hand basket rail.
In a specific embodiment of the present invention, the avoiding groove is C-shaped or rectangular, and the opening width of the avoiding groove is larger than the diameter of the basket bar.
In a particular embodiment of the invention, the upper end of the measuring cylinder is provided with a handle.
The utility model discloses one of above-mentioned technical scheme has one of following advantage or beneficial effect at least: the utility model discloses a set up the support, during the use, the operator makes the support transfer along the hand-basket railing, and slow lowering means is up to can not descending, and support and the up end contact who is arranged in the hand-basket the box of freezing of the top treat that the floating member is static after, the scale mark that reads the scale just can know the height between the freezing box of liquid nitrogen and the superiors fast, easy operation, extensive applicability, user experience is good.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples;
fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more features.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the term "connected" should be interpreted broadly, e.g. as a fixed connection or a movable connection, as well as a detachable connection or a non-detachable connection, or as an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other elements or indirectly connected through one or more other elements or in an interactive relationship between two elements.
The following disclosure provides many different embodiments or examples for implementing different aspects of the invention.
Referring to fig. 1, the device for measuring the height of liquid nitrogen in a liquid nitrogen tank comprises a measuring cylinder 11, a floating part 12 and a support 16, wherein a handle 13 is arranged at the upper end of the measuring cylinder 11, the handle 13 is arranged along the horizontal direction, the measuring cylinder 11 is provided with a measuring cavity 19 with an open upper end, through holes 20 capable of communicating the measuring cavity 19 are arranged on the side wall or/and the bottom wall of the measuring cylinder 11, and at least part of the measuring cylinder 11 can be arranged in the liquid nitrogen tank 100; the lower end of the floating piece 12 is arranged in the measuring cavity 19, the upper end of the floating piece 12 is exposed after penetrating through the opening of the measuring cavity 19, and a scale is arranged on the floating piece 12; the support 16 is arranged at the lower end of the measuring cylinder 11, and the free end of the support 16 extends outwards to form a limiting part which can be in contact with the freezing storage box in the lifting basket. It should be noted that the through holes 20 in the side wall or/and the bottom wall of the measuring cylinder 11 may be replaced by a mesh structure. Preferably, the handle 13 and the bracket 16 are substantially parallel.
During the use, the operator holds this device through handle 13, transfers support 16 along hand-basket railing 17, and slow descending device is up to can not descending, support 16 this moment with be arranged in the hand-basket the top end face contact of the top cryopreserved box 101, wait that floating part 12 stands back, the scale mark that reads the scale just can know the height between liquid nitrogen and the cryopreserved box 101 of the superiors fast, easy operation, extensive applicability, user experience is good.
In an embodiment of the present invention, the limiting portion is a lower end surface of the support 16, the lower end surface of the support 16 and the inner bottom wall of the measurement cavity 19 are located at the same horizontal plane, and the lower end surface of the floating member 12 contacts with the inner bottom wall of the measurement cavity 19. During measurement, the lower end face of the support 16 is in contact with the upper end face of the liquid of the uppermost layer of the cryopreservation box 101, nitrogen flows into the measurement cavity 19 from the bottom wall or/and the side wall of the measurement barrel 11, the floating part 12 moves upwards under the buoyancy action of the liquid nitrogen, and a user can obtain the height between the liquid nitrogen and the uppermost layer of the cryopreservation box 101 through the marking change of the ruler.
In one embodiment of the invention, the float member 12 comprises a float 14 disposed at least partially within the measurement cavity 19, the scale being disposed on an outer surface of the float 14. Preferably, the ruler is provided with numerical values, or the ruler is provided with a plurality of datum height blocks with different colors, so that an operator can observe the datum height blocks conveniently.
In one embodiment of the present invention, the lower end of the buoy 14 is connected to a float 15, and the outer diameter of the float 15 is smaller than the inner diameter of the measuring cylinder 11. The float bowl 15 is a closed hollow cylinder, so that the float bowl 15 is floated by the buoyancy of liquid nitrogen. The inner walls of the openings of the measuring cavity 19 are respectively provided with a limiting block 18, the distance between the two limiting blocks 18 is larger than the outer diameter of the buoy 14, so that the buoy 14 can be exposed, and the distance between the two limiting blocks 18 is smaller than the outer diameter of the buoy 15, so that the buoy 15 is prevented from being separated from the measuring cavity 19.
In one embodiment of the present invention, the free end of the bracket 16 includes a first portion and a second portion, and an avoiding groove for avoiding the hand basket rail 17 is formed between the first portion and the second portion. The operator holds this device through handle 13, penetrates the dodge groove of support 16 into hand-basket railing 17 to along hand-basket railing 17 transfer measure section of thick bamboo 11 and support 16.
The utility model discloses an embodiment, dodge the groove and be C form or rectangle form, the opening width who dodges the groove is greater than the diameter of hand-basket railing 17, and the groove of dodging of the support 16 of being convenient for penetrates hand-basket railing 17.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. The utility model provides a measure device of liquid nitrogen height in liquid nitrogen container which characterized in that includes:
the liquid nitrogen measuring device comprises a measuring cylinder, a liquid nitrogen tank and a liquid nitrogen pump, wherein the measuring cylinder is provided with a measuring cavity with an open upper end, the side wall or/and the bottom wall of the measuring cylinder is/are provided with through holes capable of being communicated with the measuring cavity, and at least part of the measuring cylinder can be arranged in the liquid nitrogen tank;
the lower end of the floating piece is arranged in the measuring cavity, the upper end of the floating piece penetrates through the opening of the measuring cavity and then is exposed, and the floating piece is provided with a scale;
the support, the support sets up the lower extreme at a measuring section of thick bamboo, and the free end of support outwards extends in order to form the spacing portion that can freeze the box contact in with the hand-basket.
2. The device for measuring the height of liquid nitrogen in a liquid nitrogen tank according to claim 1, wherein the limiting part is a lower end surface of a bracket, and the lower end surface of the bracket is located on the same horizontal plane with the inner bottom wall of the measurement cavity.
3. The apparatus according to claim 1 or 2, wherein the float member comprises a float at least partially disposed in the measurement chamber, and the scale is disposed on an outer surface of the float.
4. The apparatus as claimed in claim 3, wherein the float is connected to the lower end of the float, and the outer diameter of the float is smaller than the inner diameter of the measuring cylinder.
5. The device for measuring the height of liquid nitrogen in a liquid nitrogen tank according to claim 1 or 2, wherein a numerical value is arranged on the scale, or a plurality of reference height blocks represented by different colors are arranged on the scale.
6. The apparatus according to claim 3, wherein the free end of the bracket comprises a first portion and a second portion, and an escape slot is formed between the first portion and the second portion for avoiding the hand rail.
7. The apparatus according to claim 6, wherein the avoiding groove is C-shaped or rectangular, and the opening width of the avoiding groove is larger than the diameter of the basket bar.
8. The device for measuring the height of liquid nitrogen in a liquid nitrogen tank according to claim 1 or 2, wherein a handle is arranged at the upper end of the measuring cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221380670.7U CN217687387U (en) | 2022-06-02 | 2022-06-02 | Device for measuring height of liquid nitrogen in liquid nitrogen tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221380670.7U CN217687387U (en) | 2022-06-02 | 2022-06-02 | Device for measuring height of liquid nitrogen in liquid nitrogen tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217687387U true CN217687387U (en) | 2022-10-28 |
Family
ID=83705107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221380670.7U Active CN217687387U (en) | 2022-06-02 | 2022-06-02 | Device for measuring height of liquid nitrogen in liquid nitrogen tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217687387U (en) |
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2022
- 2022-06-02 CN CN202221380670.7U patent/CN217687387U/en active Active
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