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CN-121977162-A - Measuring device for liquid nitrogen height in liquid nitrogen tank

CN121977162ACN 121977162 ACN121977162 ACN 121977162ACN-121977162-A

Abstract

The invention relates to the technical field of liquid nitrogen measurement, and discloses a device for measuring the liquid nitrogen height in a liquid nitrogen tank. When the two sliding plates slide downwards, the second sliding plate drives the limiting rings and the auxiliary plates to generate a downward pushing force on the top area of the inner sleeve, at the moment, the inlet of the inner sleeve is contracted under the pushing of the auxiliary plates and the limiting rings and is contacted with the surface of the measuring staff again, at the moment, the contracted inlet of the inner sleeve and the contact between the first sliding plate and the surface of the measuring staff after movement can form two fulcrums and a stable guide structure on the surface of the inner sleeve, so that the situation that the measuring staff tilts when the measuring staff is manually inserted into the measuring staff can be reduced, the average liquid level can be stably obtained, and the accuracy and the stability of the measuring staff are improved.

Inventors

  • QIU PING

Assignees

  • 京科凯帝设备制造(连云港)有限公司

Dates

Publication Date
20260505
Application Date
20260303

Claims (10)

  1. 1. The utility model provides a measuring device of liquid nitrogen height in liquid nitrogen container, includes main part (1), the equal fixedly connected with limiting plate (101) of left side and right side inner wall of main part (1), its characterized in that still includes: a sliding mechanism (2), wherein the sliding mechanism (2) is arranged inside the main body (1) in a mounting way and is used for ensuring the verticality of the measuring device when the height of fluid inside the main body (1) is measured; The rotating mechanism (3), the side wall that sets up at slide mechanism (2) is installed to rotating mechanism (3), can prevent slide mechanism (2) because of the circumstances of cold adhesion appears in supercooling in main part (1) through the motion of rotating mechanism (3).
  2. 2. The device for measuring the height of liquid nitrogen in a liquid nitrogen tank according to claim 1, wherein the main body (1) comprises: an auxiliary assembly (11), the auxiliary assembly (11) being mounted inside the main body (1) for slowing down the flow space inside the main body (1) when measuring; and the elastic component (12) is arranged at the top of the limiting plate (101).
  3. 3. The device for measuring the height of liquid nitrogen in a liquid nitrogen tank according to claim 2, wherein the sliding mechanism (2) comprises a cross bar (201) arranged at the top of a limiting plate (101), and the sliding mechanism (2) further comprises: A swinging assembly (21), wherein the swinging assembly (21) is arranged on the side wall of the cross bar (201) and is used for ensuring the verticality of the state of the swinging assembly during the measurement of the measuring device; the closing component (22) is arranged at the bottom of the swinging component (21), and the top of the auxiliary component (11) can be pushed along with the sliding of the swinging component (21) through the closing component (22).
  4. 4. A measuring device for the height of liquid nitrogen in a liquid nitrogen tank according to claim 3, characterized in that said rotating mechanism (3) comprises two fixed plates (301) arranged at the bottom of the oscillating assembly (21), said rotating mechanism (3) further comprising: The telescopic component (31) is arranged on the side wall of the fixed plate (301), and the surface of the telescopic component (31) is prevented from being excessively rubbed by the swinging component (21) after the measurement of the measuring device is completed.
  5. 5. The device for measuring the liquid nitrogen height in the liquid nitrogen tank according to claim 4, wherein the two limiting plates (101) are symmetrically arranged with the middle part of the main body (1) as a center; The auxiliary assembly (11) comprises an inner layer sleeve (111) fixedly connected to the inner wall of the bottom of the main body (1), a plug cover (112) is arranged at the top of the inner layer sleeve (111), and the plug cover (112) is slidably connected to the inside of the main body (1).
  6. 6. The device for measuring the liquid nitrogen height in the liquid nitrogen tank according to claim 4, wherein the inner wall of one side of the main body (1) close to the limiting plate (101) is fixedly connected with a toothed frame (113); The elastic component (12) comprises a plurality of return springs (121) arranged on the inner wall of the top of the main body (1), and the three return springs (121) are symmetrically distributed in groups; The bottoms of the reset springs (121) of each group are fixedly connected with an arc-shaped plate (122).
  7. 7. The device for measuring the liquid nitrogen height in the liquid nitrogen tank according to claim 6, wherein the cross bar (201) is slidingly connected inside the tooth frame (113); The swinging assembly (21) comprises a first sliding plate (211) fixedly connected to the side wall of the cross rod (201), and a connecting plate (212) is rotatably connected to one side, close to the limiting plate (101), of the first sliding plate (211); one end of the connecting plate (212) far away from the first sliding plate (211) is rotatably connected with a second sliding plate (213), and the second sliding plate (213) is slidably connected to the inside of the limiting plate (101).
  8. 8. The device for measuring the liquid nitrogen height in the liquid nitrogen tank according to claim 7, wherein the closing assembly (22) comprises a limiting ring (221) rotatably connected to the bottoms of the two sliding plates II (213), and a plurality of auxiliary plates (222) are rotatably connected to the outer surface of the limiting ring (221); the top of the auxiliary plates (222) is connected with a counterweight ring (223) in a sliding way.
  9. 9. The device for measuring the liquid nitrogen height in a liquid nitrogen tank according to claim 7, wherein the two fixing plates (301) are fixedly connected to the bottom of the first sliding plate (211); The telescopic assembly (31) comprises a telescopic sleeve (311) which is rotatably connected to one end of the fixed plate (301) far away from the first sliding plate (211); A central rod (312) is slidably connected between the two telescopic sleeves (311), a limiting spring is fixedly connected to one end of the central rod (312) close to the fixed plate (301), and one end of the limiting spring, which is far away from the central rod (312), is fixedly connected with the inner wall of the telescopic sleeve (311).
  10. 10. The device for measuring the height of liquid nitrogen in a liquid nitrogen tank according to claim 9, wherein the middle part of the central rod (312) is slidably connected with a rotating frame (313), a semicircular plate (314) is fixedly connected to the side wall of the rotating frame (313), and two inclined plates are fixedly connected to one side, close to the central rod (312), of the semicircular plate (314).

Description

Measuring device for liquid nitrogen height in liquid nitrogen tank Technical Field The invention relates to the technical field of liquid nitrogen measurement, in particular to a device for measuring the liquid nitrogen height in a liquid nitrogen tank. Background The liquid nitrogen tank is a container specially used for storing and transporting liquid nitrogen, is designed to be capable of keeping a low-temperature state for a long time, prevents liquid nitrogen from evaporating too fast, and is mainly used for monitoring and managing the storage amount of the liquid nitrogen by a liquid nitrogen height measuring device in the liquid nitrogen tank, so that the effective utilization and supplementation of the liquid nitrogen are ensured; when measuring the liquid nitrogen height in the liquid nitrogen tank, generally all can be followed the dipperstick and inserted the jar internally perpendicularly with it from jar body top and contact the bottom of jar body and stop after a period by the staff, reach the purpose to liquid nitrogen height measurement according to dipperstick scale and frosting height, because the dipperstick is when manually inserting the jar internally, the dipperstick is difficult to keep vertical state in liquid nitrogen, it is difficult to obtain stable average liquid level to lead to the dipperstick to be in the slope in liquid nitrogen still to cause the scale of liquid nitrogen on the dipperstick easily, accuracy and stability when influencing the measurement height. Disclosure of Invention The invention aims to provide a measuring device for the liquid nitrogen height in a liquid nitrogen tank, so as to solve the problems in the background technology. In order to solve the technical problems, the invention is realized by the following technical scheme: the invention relates to a measuring device for liquid nitrogen height in a liquid nitrogen tank, which comprises a main body, wherein limit plates are fixedly connected to the inner walls of the left side and the right side of the main body, and the measuring device further comprises: a sliding mechanism installed inside the main body for ensuring the vertical of the measuring device when the height of the fluid inside the main body is measured; the rotating mechanism is arranged on the side wall of the sliding mechanism, and the sliding mechanism can be prevented from being cold adhered in the main body due to supercooling through the movement of the rotating mechanism. Further, the main body includes: the auxiliary assembly is arranged in the main body and used for slowing down the flow space in the main body during measurement; and the elastic component is arranged at the top of the limiting plate. Further, the slide mechanism includes the horizontal pole of setting at limiting plate top, and slide mechanism still includes: The swinging component is arranged on the side wall of the cross rod and used for ensuring the verticality of the state of the swinging component in the measuring process of the measuring device; The closing component is arranged at the bottom of the swinging component, and the top of the auxiliary component can be pushed along with the sliding of the swinging component through the closing component. Further, the slewing mechanism includes two fixed plates that set up in swing subassembly bottom, and slewing mechanism still includes: the telescopic component is arranged on the side wall of the fixed plate, and the surface of the telescopic component is prevented from being excessively rubbed by the swinging component after the measurement of the measuring device is completed. Further, the two limiting plates are symmetrically arranged by taking the middle part of the main body as the center; the auxiliary assembly comprises an inner layer sleeve fixedly connected to the inner wall of the bottom of the main body, and a plug cover is arranged at the top of the inner layer sleeve and is slidably connected to the inside of the main body. Further, a tooth frame is fixedly connected to the inner wall of one side of the main body, which is close to the limiting plate; The elastic component comprises a plurality of return springs arranged on the inner wall of the top of the main body, and each three of the plurality of return springs are symmetrically distributed; The bottom of every group reset spring all fixedly connected with arc, wherein, the front of main part entry region all is sunken setting with the back inner wall, and the inner wall of inlayer cover is the ripple state setting. Further, the cross bar is connected inside the tooth frame in a sliding way; the swinging component comprises a sliding plate I fixedly connected to the side wall of the cross rod, and a connecting plate is rotatably connected to one side, close to the limiting plate, of the sliding plate I; one end of the connecting plate, which is far away from the first sliding plate, is rotationally connected with a second sliding plate, and th