CN210485281U

CN210485281U - Liquid helium dewar that stability is strong

Info

Publication number: CN210485281U
Application number: CN201921540597.3U
Authority: CN
Inventors: 范宇超; 郑洁斌; 钟小荣; 徐勉懿
Original assignee: Sinoscience Fullcryo Zhongshan Low Temperature Equipment Manufacturing Co Ltd
Current assignee: Sinoscience Fullcryo Zhongshan Low Temperature Equipment Manufacturing Co Ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-05-08
Anticipated expiration: 2029-09-17

Abstract

The utility model relates to a liquid helium dewar field, concretely relates to liquid helium dewar that stability is strong. Including upper end open-ended barrel, the barrel cover is established at liquid helium dewar body lower extreme, the cover is equipped with the lantern ring on the barrel outer fringe, a plurality of upper flutes have been seted up to lantern ring lower extreme circumference equipartition, the articulated pendulum rod that has been connected in the upper flute, equal threaded connection locking screw in both ends about the lantern ring, be fixed with solid fixed ring on the barrel of lantern ring below, gu set up the low groove that corresponds with the upper flute on the fixed ring, the pendulum rod runs through the low groove, be fixed with the voussoir on one side that the barrel was kept away from to the pendulum rod, the voussoir is located the low groove, the vous. The utility model discloses, when liquid helium dewar body used, the pendulum rod of usable a plurality of lower extremes to liquid helium dewar body outside direction slope stabilized, can increase the stability ability of liquid helium dewar body, can pack up a plurality of pendulum rods when not using, does not occupy unnecessary space.

Description

Liquid helium dewar that stability is strong

Technical Field

The utility model relates to a liquid helium dewar field, concretely relates to liquid helium dewar that stability is strong.

Background

The dewar bottle, also called as thermos bottle, is an ideal container and tool for storing liquid gas, low-temp. research and crystal element protection. The existing liquid helium dewar is generally placed on a support in order to ensure the stability performance of the existing liquid helium dewar in the using process, and then the support is fixed, so that the stabilizing mode is troublesome, but if the support is directly fixed on the liquid helium dewar, the whole occupied space of the liquid helium dewar is large, and the movement is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that can increase its stability can when using, can pack up the stable structure who stabilizes the liquid helium dewar when not using, does not occupy unnecessary space, the convenient strong liquid helium dewar of stability along with liquid helium dewar removal simultaneously.

In order to realize the purpose, the utility model provides a technical scheme is:

the utility model provides a liquid helium dewar that stability is strong, includes upper end open-ended barrel, and the barrel cover is established at liquid helium dewar body lower extreme, and the cover is equipped with rather than sliding fit's lantern ring on the barrel outer fringe, and a plurality of upper flutes have been seted up to lantern ring lower extreme circumference equipartition, and the hinge is connected with the pendulum rod in the upper flute, the pendulum rod upper end is connected in the upper flute through the pivot hinge, and the cover is equipped with the torsional spring in the pivot, and the cell wall that the upper flute is close to the barrel is tightly supported to torsional spring one end, and the torsional spring other end is blockked by the pin on the pendulum rod, and the equal threaded connection locking screw in both ends about the lantern ring is fixed with solid fixed ring on the barrel of lantern ring below, gu set up the lower groove that corresponds with the upper flute on the fixed ring, the pendulum.

Specifically, the liquid helium dewar body is fixed in the cylinder.

Specifically, a gap allowing the swing rod to rotate around the rotating shaft is arranged between the inner groove wall of the upper groove and the outer edge of the upper end of the swing rod.

Specifically, the stop lever is parallel to the rotating shaft.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses, simple structure, convenient operation, when liquid helium dewar body used, usable a plurality of lower extremes were stabilized to the pendulum rod of liquid helium dewar body outside direction slope, can increase the stability ability of liquid helium dewar body, can pack up a plurality of pendulum rods when not using, do not occupy unnecessary space, and the convenience is removed along with liquid helium dewar body.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of the area a in fig. 1.

FIG. 3 is an enlarged view of the area B in FIG. 1

FIG. 4 is a schematic structural view of the pendulum rod supporting the liquid helium Dewar body.

Fig. 5 is an enlarged view of the region C in fig. 4.

Detailed Description

As shown in fig. 1-5, a liquid helium dewar with strong stability comprises a cylinder 2 with an opening at the upper end, wherein the cylinder 2 is sleeved at the lower end of the liquid helium dewar body 1, the liquid helium dewar body 1 is fixed in the cylinder 2, a lantern ring 3 in sliding fit with the cylinder 2 is sleeved on the outer edge of the cylinder 2, a plurality of upper grooves 5 are uniformly distributed on the circumference of the lower end of the lantern ring 3, a swing rod 11 is hinged in the upper groove 5, the upper end of the swing rod 11 is hinged in the upper groove 5 through a rotating shaft 6, a gap allowing the swing rod 11 to rotate around the rotating shaft 6 is arranged between the inner groove wall of the upper groove 5 and the outer edge of the upper end of the swing rod 11, a torsion spring 8 is sleeved on the rotating shaft 6, one end of the torsion spring 8 tightly abuts against the groove wall of the upper groove 5 close to the cylinder 2, the other end of the torsion spring 8 is blocked by a blocking rod 7 on the swing rod 11, the fixing ring 9 is provided with a lower groove 10 corresponding to the upper groove 5, the swing rod 11 penetrates through the lower groove 10, a wedge block 12 is fixed on one side of the swing rod 11 far away from the cylinder 2, the wedge block 12 is positioned in the lower groove 10, and the surface of the wedge block 12 facing the outer edge of the fixing ring 9 is an inclined surface with the lower end inclined towards the outer side of the cylinder 2.

The utility model discloses during the use, not hard up locking screw 4, make the lantern ring 3 down, when voussoir 12 is located solid fixed ring 9 below, the right-hand member of torsional spring 8 is used on pin 7, and then make 11 lower extremes of pendulum rod rotatory to the 1 outside direction of liquid helium dewar body, until pendulum rod 11 is blockked by the cell wall of low groove 10, it is down to continuously make the lantern ring 3 drive pendulum rod 11, when 11 lower extremes of pendulum rod and ground contact, lock the 3 locking of lantern ring on barrel 2 through locking screw 4, the ground contact in a plurality of 11 lower extremes of pendulum rod and the 1 outside of liquid helium dewar body this moment, the area of contact of barrel 2 with ground has been increased, make the stability ability of liquid helium dewar body 1 better.

When the liquid helium Dewar body 1 needs to be moved, the locking screws 4 are loosened, so that the lantern ring 3 moves upwards, the wedge block 12 gradually moves towards the inner direction of the lower groove 10, under the guiding action of the inclined plane of the wedge block 12, the lower end of the swing rod 11 gradually rotates towards the direction of the cylinder body 1 in the process that the wedge block 12 moves towards the inner direction of the lower groove 10, after the wedge block 12 is integrally positioned in the lower groove 10, the locking screws 4 are screwed to fix the lantern ring 3 on the cylinder body 2, and the liquid helium Dewar body 1 and the cylinder body 2 can be conveniently moved after the lower ends of the swing rods 11 are folded.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The liquid helium dewar with strong stability comprises a cylinder body (2) with an opening at the upper end, and is characterized in that the cylinder body (2) is sleeved at the lower end of a liquid helium dewar body (1), a lantern ring (3) in sliding fit with the cylinder body (2) is sleeved on the outer edge of the cylinder body (2), a plurality of upper grooves (5) are uniformly distributed on the circumference of the lower end of the lantern ring (3), an oscillating bar (11) is hinged in the upper grooves (5) through a rotating shaft (6), a torsion spring (8) is sleeved on the rotating shaft (6), one end of the torsion spring (8) tightly abuts against the groove wall of the upper groove (5) close to the cylinder body (2), the other end of the torsion spring (8) is blocked by a stop lever (7) on the oscillating bar (11), locking screws (4) are in threaded connection at the left end and the right end of the lantern ring (3), a fixing ring (9) is fixed on the cylinder body (2) below the lantern ring (3), a lower groove (10), the swing rod (11) penetrates through the lower groove (10), a wedge block (12) is fixed on one side, away from the barrel (2), of the swing rod (11), the wedge block (12) is located in the lower groove (10), and the surface, facing the outer edge of the fixing ring (9), of the wedge block (12) is an inclined surface with the lower end inclined towards the outer side direction of the barrel (2).

2. The liquid helium dewar of claim 1, wherein the liquid helium dewar body (1) is fixed in the cylinder (2).

3. The liquid helium dewar with strong stability as claimed in claim 1, wherein a clearance allowing the swing link (11) to rotate around the rotation shaft (6) is provided between the inner wall of the upper groove (5) and the outer edge of the upper end of the swing link (11).

4. The liquid helium dewar of claim 1, wherein the stop lever (7) is parallel to the rotation axis (6).