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CN-224206020-U - Self-locking type liquid nitrogen tank sealing heat preservation device and liquid nitrogen tank

CN224206020UCN 224206020 UCN224206020 UCN 224206020UCN-224206020-U

Abstract

The utility model provides a self-locking liquid nitrogen tank sealing and heat preserving device and a liquid nitrogen tank, and belongs to the field of auxiliary reproduction laboratory monitoring equipment. Including annular connecting piece and tank cap subassembly, one side terminal surface of annular connecting piece is provided with first hasp, is provided with the lockhole on the first hasp, and the opposite side of annular connecting piece is provided with and is used for with liquid nitrogen tank top opening complex mounting groove. The tank cover assembly comprises a cover plate, an electric control main board and a heat preservation material column, wherein the heat preservation material column is arranged on one side surface of the cover plate, the outer diameter of the heat preservation material column is matched with the inner diameter of the annular connecting piece, the electric control main board is arranged on the other side surface of the cover plate, a lock tongue which is arranged in a telescopic way outwards in the radial direction is arranged on one side of the cover plate, and the lock tongue is matched with the lock hole and is electrically connected with the electric control main board. The technical problems that the traditional liquid nitrogen tank sealing and locking mode in the related technology has large occupied space caused by defects of the traditional liquid nitrogen tank sealing and locking mode and influences the use and maintenance efficiency of the liquid nitrogen tank can be solved.

Inventors

  • JIN YUQING
  • YU YANG
  • QU YUAN

Assignees

  • 武汉互创联合科技有限公司

Dates

Publication Date
20260508
Application Date
20250610

Claims (10)

  1. 1. The self-locking liquid nitrogen tank sealing heat preservation device is characterized by comprising an annular connecting piece (1) and a tank cover assembly (2), The liquid nitrogen tank is characterized in that the annular connecting piece (1) is provided with a first lock catch (3) on one side end face of the annular connecting piece (1), a lock hole (31) is formed in the first lock catch (3), and an installation groove (11) matched with an opening at the top of the liquid nitrogen tank is formed in the other side of the annular connecting piece (1); The tank cover assembly (2) comprises a cover plate (21), an electric control main plate (22) and a heat preservation material column (23), wherein the heat preservation material column (23) is arranged on one side surface of the cover plate (21), the outer diameter of the heat preservation material column (23) is matched with the inner diameter of the annular connecting piece (1), the electric control main plate (22) is arranged on the other side surface of the cover plate (21), a lock tongue (24) which is arranged in a telescopic way outwards in the radial direction is arranged on one side of the cover plate (21), and the lock tongue (24) is matched with the lock hole (31) and is electrically connected with the electric control main plate (22).
  2. 2. The self-locking type liquid nitrogen tank sealing and heat-preserving device according to claim 1, wherein a positioning notch (211) matched with the first lock catch (3) is arranged at the edge of the cover plate (21) below the lock tongue (24).
  3. 3. The self-locking liquid nitrogen tank sealing heat preservation device according to claim 2, wherein the first lock catch (3) is detachably connected with the annular connecting piece (1).
  4. 4. The self-locking type liquid nitrogen tank sealing heat preservation device according to claim 1, wherein a plurality of sample mounting grooves (12) are formed in one side end face of the annular connecting piece (1) at equal angle intervals along the axial direction, and the sample mounting grooves (12) are communicated with the inner ring of the annular connecting piece (1).
  5. 5. The self-locking type liquid nitrogen tank sealing and heat preservation device according to claim 4, wherein an avoidance groove (231) which is arranged along the radial direction and matched with the sample mounting groove (12) is arranged on the outer side wall of the heat preservation material column (23).
  6. 6. The self-locking liquid nitrogen tank sealing and heat preservation device according to any one of claims 1 to 5, further comprising a sensor assembly (4), wherein the sensor assembly (4) is arranged on one side of the heat preservation material column (23) away from the cover plate (21), and the sensor assembly (4) at least comprises a temperature sensor (41) and a liquid level sensor (42) which are in communication connection with the electric control main board (22).
  7. 7. The self-locking liquid nitrogen tank sealing and heat preservation device according to any one of claims 1 to 5, wherein a second lock catch (13) is arranged at the outer ring edge of the annular connecting piece (1).
  8. 8. The self-locking type liquid nitrogen tank sealing heat preservation device according to claim 7, wherein a retaining ring (14) is arranged at the outer ring edge of the annular connecting piece (1), and the retaining ring (14) and the second lock catch (13) are arranged at intervals along the circumferential direction of the annular connecting piece (1).
  9. 9. A liquid nitrogen tank, includes the sealed heat preservation device of auto-lock liquid nitrogen tank of any one of claims 1 to 8, and characterized by further comprising a tank body (5), annular connecting piece (1) pass through mounting groove (11) install in the open top department of tank body (5), apron (21) lid is located on the terminal surface of one side of annular connecting piece (1), heat preservation material post (23) wear to locate the inner circle of annular connecting piece (1) and stretch into inside tank body (5).
  10. 10. Liquid nitrogen tank according to claim 9, characterized in that the annular connection (1) is detachably connected to the tank body (5).

Description

Self-locking type liquid nitrogen tank sealing heat preservation device and liquid nitrogen tank Technical Field The utility model relates to the field of auxiliary reproduction laboratory monitoring equipment, in particular to a self-locking liquid nitrogen tank sealing heat preservation device and a liquid nitrogen tank. Background Liquid nitrogen is a liquid form formed by nitrogen at low temperature, can generate lower temperature, has the characteristics of no toxicity, no color, no smell, no inflammability and explosiveness and chemical stability, and is widely applied to reproductive scientific research projects in recent years as a freezing preservation means for biological samples such as embryos. Liquid nitrogen is usually stored in a liquid nitrogen tank, and is consumed due to volatilization, heat conduction with external air and the like in the storage process, so that heat preservation and sealing treatment is required to be carried out on an opening to reduce and avoid consumption. In the related art, the sealing and heat-preserving mode of the liquid nitrogen tank mainly comprises the mode of pressing an outer cover of the liquid nitrogen tank by an external locking strip or adding a traditional mechanical lock on an original lock catch for additional locking. The mode of externally adding the locking strips is adopted, the locking strips are heavy and occupy space, and meanwhile, the locking strips and the intelligent electric control device are required to be installed at the positions on the two sides of the opening of the liquid nitrogen tank, so that the liquid nitrogen tank is inconvenient to carry and transfer. Moreover, the mode of adding the traditional mechanical lock lacks intellectualization, but when the quantity of liquid nitrogen tanks is more, workers are required to unlock one by using keys, and the use and maintenance efficiency is low. Disclosure of utility model The embodiment of the utility model provides a self-locking type liquid nitrogen tank sealing and heat-preserving device and a liquid nitrogen tank, which can solve the technical problems that the traditional liquid nitrogen tank sealing and locking mode in the related art has large occupied space due to defects of the traditional liquid nitrogen tank sealing and locking mode, and the use and maintenance efficiency of the liquid nitrogen tank is affected. The technical scheme is as follows: In a first aspect, the embodiment of the utility model provides a self-locking liquid nitrogen tank sealing and heat preserving device, which comprises an annular connecting piece and a tank cover assembly, The annular connecting piece is provided with a first lock catch on one side end face, a lock hole is formed in the first lock catch, and an installation groove matched with an opening at the top of the liquid nitrogen tank is formed in the other side of the annular connecting piece; The tank cover assembly comprises a cover plate, an electric control main board and a heat preservation material column, wherein the heat preservation material column is arranged on one side face of the cover plate, the outer diameter of the heat preservation material column is matched with the inner diameter of the annular connecting piece, the electric control main board is arranged on the other side face of the cover plate, a lock tongue which is arranged in a telescopic way outwards in the radial direction is arranged on one side of the cover plate, and the lock tongue is matched with the lock hole and is electrically connected with the electric control main board. Optionally, a positioning notch matched with the first lock catch is arranged at the edge of the cover plate below the lock tongue. Optionally, the first lock catch is detachably connected with the annular connecting piece. Optionally, a plurality of sample mounting grooves are formed in the end face of one side of the annular connecting piece at equal angle intervals in the axial direction, and the sample mounting grooves are communicated with the inner ring of the annular connecting piece. Optionally, an avoidance groove which is arranged along the radial direction and matched with the sample mounting groove is formed in the outer side wall of the heat-insulating material column. Optionally, the device further comprises a sensor assembly, wherein the sensor assembly is arranged on one side, far away from the cover plate, of the heat insulation material column, and the sensor assembly at least comprises a temperature sensor and a liquid level sensor which are in communication connection with the electric control main board. Optionally, a second lock catch is arranged at the edge of the outer ring of the annular connecting piece. Optionally, a retaining ring is arranged at the outer ring edge of the annular connecting piece, and the retaining ring and the second lock catch are arranged at intervals along the circumferential direction of the annular connecting piece. In a second as