Portable negative pressure sample storage tank based on double-light-shielding structure

Abstract

The utility model relates to the technical field of negative pressure sample storage tanks, in particular to a portable negative pressure sample storage tank based on a double-shading structure, which comprises a high borosilicate glass outer tank body, a neutral material glass inner tank body, a fixed magnetic suction ring, an outer limiting ring, an inner limiting ring, a visible shading film and a movable magnetic suction ring, a neutral material glass inner tank body is arranged in the high borosilicate glass outer tank body, a fixed magnetic suction ring is arranged at the top end in the high borosilicate glass outer tank body, and an outer limiting ring is arranged below the inner side of the high borosilicate glass outer tank body; the movable magnetic attraction ring overcomes the magnetic attraction force of the fixed magnetic attraction ring to be separated by pulling the visible shading film, the movable magnetic attraction ring slides out of the interlayer of the double-glass tank body along the gap between the outer limiting ring and the inner limiting ring, the movable magnetic attraction ring on the top of the new shading film accurately penetrates through the limiting rings after the tank body is inverted, and magnetic attraction self-locking is triggered through inertia falling. After resetting, the shading film is embedded into the interlayer of the tank body, so that the shading adjusting function is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to negative pressure sample storage tank technical field especially, it relates to a portable negative pressure sample storage tank based on double light shielding structure. BACKGROUND

[0002] The portable negative pressure sample storage tank based on double light shielding structure on market is the integrated storage device designed for photosensitive, volatile or air isolation sample, integrates transparent observation window and light shielding coating, allows real-time monitoring sample state under not destroying negative pressure and light shielding condition, the tank body adopts corrosion -resistant, temperature -resistant lightweight material, has portability and multifunctional adaptability, is applicable to biomedical sample (such as pathogen, living cell), photodegradation reagent or chemical reaction intermediate safe storage and transportation, supports short -term field operation or laboratory operation, its compact structure combines sealing design and optional biological inactivation function, can effectively reduce the pollution risk, improves experimental efficiency and data reliability.

[0003] The common portable negative pressure sample storage tank based on double light shielding structure only contains the function of double light shielding, can block light of specific wavelength range, but lacks the function of adjusting light shielding, cannot guarantee that the light shielding structure can be adjusted according to the light source in different environments, and the double-material tank body can only block light of specific wavelength range according to the characteristics of the two materials themselves, when the wavelength or intensity of external light source exceeds the inherent blocking range of the material, the sample will be decomposed or denatured, which affects the experimental results.

[0004] Therefore, in view of the problem that the above-mentioned portable negative pressure sample storage tank based on double light shielding structure lacks the function of adjusting light shielding, cannot adjust the light shielding parameter in real time according to different light sources, leads to the sample photosensitive degradation rate exceeding the critical threshold, and affects the accuracy of experimental data, a new type of portable negative pressure sample storage tank based on double light shielding structure is urgently needed. UTILITY MODEL CONTENTS

[0005] In order to overcome the problem that the common portable negative pressure sample storage tank based on double light shielding structure lacks the function of adjusting light shielding, cannot adjust the light shielding parameter in real time according to different light sources, leads to the sample photosensitive degradation rate exceeding the critical threshold, and affects the accuracy of experimental data.

[0006] The utility model discloses a technical scheme: a portable negative pressure sample storage tank based on double light-avoiding structures, including high borosilicate glass outer tank body, neutral material glass inner tank body, fixed magnetic attraction ring, outer limiting ring, inner limiting ring, visible light shielding film and movable magnetic attraction ring, the inside of high borosilicate glass outer tank body is provided with neutral material glass inner tank body, and the top of high borosilicate glass outer tank body inside is provided with fixed magnetic attraction ring, and the below of high borosilicate glass outer tank body inside is provided with outer limiting ring, and the position of the below of the periphery of neutral material glass inner tank body corresponds outer limiting ring and is equipped with inner limiting ring, and the middle of high borosilicate glass outer tank body and neutral material glass inner tank body is provided with visible light shielding film, and the top of visible light shielding film is provided with movable magnetic attraction ring in the position of fixed magnetic attraction ring.

[0007] Preferably, by pulling down the visible light shielding film to drive the movable magnetic attraction ring to bear downward tension, until the movable magnetic attraction ring is separated from the fixed magnetic attraction ring, then continue to pull down the movable magnetic attraction ring, until the movable magnetic attraction ring passes through the middle of the outer limiting ring and the inner limiting ring downward, at this time, the movable magnetic attraction ring is completely separated from the middle of the high borosilicate glass outer tank body and the neutral material glass inner tank body, then the whole tank is inverted, then the movable magnetic attraction ring on the top of the visible light shielding film corresponding to the external light passes through the middle of the outer limiting ring and the inner limiting ring, after the movable magnetic attraction ring enters the middle of the high borosilicate glass outer tank body and the neutral material glass inner tank body, it will fall downward due to inertia and be magnetically attracted to the fixed magnetic attraction ring, finally, the whole tank is placed vertically, at this time, the completed visible light shielding film is blocked in the middle of the high borosilicate glass outer tank body and the neutral material glass inner tank body, realizing the function of adjusting light avoidance, to solve the problem that the common portable negative pressure sample storage tank based on double light-avoiding structures only contains the function of double light avoidance, can block light of a specific wavelength range, but lacks the function of adjusting light avoidance, cannot guarantee that the light-avoiding structure can be adjusted according to the light source in different environments, and the double-material tank can only block light of a specific wavelength range according to the characteristics of the two materials themselves, when the wavelength or intensity of the external light source exceeds the inherent blocking range of the material, the sample will decompose or denature, affecting the experimental results.

[0008] Preferably, the visible light shielding film is magnetically attracted to the fixed magnetic attraction ring through the movable magnetic attraction ring, and the bottom end of the visible light shielding film penetrates the middle of the outer limiting ring and the inner limiting ring and is placed below them.

[0009] Preferably, a display scale is formed on the front side of the periphery of the high borosilicate glass outer tank body, and a stainless steel cover is arranged on the top of the neutral material glass inner tank body.

[0010] Preferably, a plurality of anti-skid grooves are formed on the periphery of the stainless steel cover, and a negative pressure valve body is arranged at the center of the top of the stainless steel cover.

[0011] As preferred, the top of the negative pressure valve body is provided with a vacuum gauge, the thermal expansion coefficient of the high borosilicate glass outer tank body is less than or equal to 3.3*10-6 / K, and the wall thickness of the neutral material glass inner tank body 2 is 2±0.1mm.

[0012] As preferred, the top of the neutral material glass inner tank body is provided with an external screw ring corresponding to the position of the stainless steel cover, and the inside of the stainless steel cover is provided with an internal thread corresponding to the position of the external screw ring, and the stainless steel cover is threadedly connected with the external screw ring through the internal thread.

[0013] As preferred, the high borosilicate glass outer tank body can withstand a temperature range of -30℃ to 150℃, the high borosilicate glass outer tank body has a heat shock resistance of greater than or equal to 50℃ / min rapid cooling and heating impact, and the neutral material glass inner tank body is suitable for an acid-base environment with a pH of 1-13.

[0014] The utility model discloses the beneficial effect:

[0015] 1, by the vertical traction of visual shading film is driven to the axial displacement of movable magnetic attraction ring along the tank body downward, when the magnetic attraction of movable magnetic attraction ring and fixed magnetic attraction ring is overcome, two are separated from the magnetic coupling state, continue to exert traction and make movable magnetic attraction ring along the annular gap channel formed by the outer limit ring and the inner limit ring to move downward, until completely separate the sandwiched space of high borosilicate glass outer tank body and neutral material glass inner tank body, after the whole inversion of tank body, the top of movable magnetic attraction ring assembled with new spectral characteristic visual shading film is aligned with the limit ring gap, and the initial kinetic energy is exerted to make it pass through the mechanical guide structure of outer limit ring and inner limit ring under the action of gravity acceleration, when movable magnetic attraction ring enters the sandwiched space, the magnetic pole array of its neodymium iron boron magnet and fixed magnetic attraction ring generates directional magnetic attraction, realizes millimeter level accurate alignment adsorption, resets the tank body to the vertical state, and the new model visual shading film is completely covered in the double tank sandwich, which realizes the function of adjusting light shielding. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a kind of portable negative pressure sample storage tank based on double light-shielding structure overall structure schematic diagram, as shown in the figure;

[0017] Figure 2 The utility model discloses a kind of portable negative pressure sample storage tank based on double light-shielding structure tank body section structure schematic diagram, as shown in the figure;

[0018] Figure 3 The utility model discloses a kind of portable negative pressure sample storage tank based on double light-shielding structure tank body bottom view structure schematic diagram, as shown in the figure;

[0019] Figure 4 The utility model discloses a kind of neutral material glass inner tank body structure schematic diagram based on double light-shielding structure of portable negative pressure sample storage tank, as shown in the figure;

[0020] Figure 5The utility model discloses a portable negative pressure sample storage tank based on double light -proof structure's high borosilicate glass outer tank body structure schematic diagram is shown.

[0021] Figure 6 The utility model discloses a portable negative pressure sample storage tank based on double light -proof structure's visual light -proof membrane structure schematic diagram is shown.

[0022] Figure 7 The utility model discloses a portable negative pressure sample storage tank based on double light -proof structure's stainless steel cover looks up structure schematic diagram.

[0023] The utility model discloses a portable negative pressure sample storage tank based on double light -proof structure's stainless steel cover looks up structure schematic diagram. Specific implementation

[0024] The utility model further carries out the explanation with the drawings and the embodiment.

[0025] Please refer to Figures 1-7 The utility model provides a portable negative pressure sample storage tank based on double light -proof structure, including high borosilicate glass outer tank body 1, neutral material glass inner tank body 2, fixed magnetic attraction ring 3, outer limiting ring 4, inner limiting ring 5, visual light -proof membrane 6 and movable magnetic attraction ring 7, the inside of high borosilicate glass outer tank body 1 is provided with neutral material glass inner tank body 2, and the top of high borosilicate glass outer tank body 1 inside is provided with fixed magnetic attraction ring 3, and the below of high borosilicate glass outer tank body 1 inside is provided with outer limiting ring 4, and the position of corresponding outer limiting ring 4 of the below of neutral material glass inner tank body 2 periphery is equipped with inner limiting ring 5, and the middle of high borosilicate glass outer tank body 1 and neutral material glass inner tank body 2 is provided with visual light -proof membrane 6, and the top of visual light -proof membrane 6 is provided with movable magnetic attraction ring 7 in the position of corresponding fixed magnetic attraction ring 3.

[0026] Please refer to Figures 2-7In the embodiment, the visible light shielding film 6 is magnetically attracted to the fixed magnetic ring 3 through the movable magnetic ring 7. The bottom end of the visible light shielding film 6 penetrates the middle of the outer limiting ring 4 and the inner limiting ring 5 and is placed below the two rings. By pulling the visible light shielding film 6 downward, the movable magnetic ring 7 is subjected to a downward pulling force, until the movable magnetic ring 7 is separated from the fixed magnetic ring 3. Then, continue to pull the movable magnetic ring 7 downward, until the movable magnetic ring 7 penetrates downward from the middle of the outer limiting ring 4 and the inner limiting ring 5. At this time, the movable magnetic ring 7 is completely separated from the middle of the high borosilicate glass outer tank body 1 and the neutral material glass inner tank body 2. The front side of the high borosilicate glass outer tank body 1 is provided with a display scale 8. The top of the neutral material glass inner tank body 2 is provided with a stainless steel cover 9. The amount of sample in the neutral material glass inner tank body 2 can be observed through the display scale 8. The stainless steel cover 9 is provided with a plurality of anti-skid grooves 10. The center of the top of the stainless steel cover 9 is provided with a negative pressure valve body 14. The anti-skid grooves 10 increase the friction between the hand and the stainless steel cover 9.

[0027] Please refer to Figures 1-7 In the embodiment, the top of the negative pressure valve body 14 is provided with a vacuum gauge 11. The thermal expansion coefficient of the high borosilicate glass outer tank body 1 is ≤3.3×10-6 / K. The wall thickness of the neutral material glass inner tank body 2 is 2±0.1mm. The pressure in the neutral material glass inner tank body 2 is detected through the vacuum gauge 11. The top of the neutral material glass inner tank body 2 is provided with an outer screw ring 12 corresponding to the position of the stainless steel cover 9. The inner side of the stainless steel cover 9 is provided with an inner thread 13 corresponding to the position of the outer screw ring 12. The stainless steel cover 9 is threadedly connected to the outer screw ring 12 through the inner thread 13. The stainless steel cover 9 is fixed to the neutral material glass inner tank body 2 through the thread connection of the inner thread 13 and the outer screw ring 12. The high borosilicate glass outer tank body 1 can withstand a temperature range of -30℃ to 150℃. The high borosilicate glass outer tank body 1 can withstand a heat shock of ≥50℃ / min. The neutral material glass inner tank body 2 is suitable for an acid-base environment with pH 1-13. The high borosilicate glass outer tank body 1 is a brown transparent tank structure. The neutral material glass inner tank body 2 is a pure transparent tank structure.

[0028] In operation, the external light is shielded by the high borosilicate glass outer tank body 1, the neutral material glass inner tank body 2 and the visible light shielding film 6. When the ambient light changes, the visible light shielding film 6 is subjected to a vertical traction force to drive the movable magnetic ring 7 to move downward along the tank body axis. When the magnetic attraction force between the movable magnetic ring 7 and the fixed magnetic ring 3 is overcome, the two are decoupled, and the traction force is continuously applied to make the movable magnetic ring 7 move downward along the annular gap channel formed by the outer limiting ring 4 and the inner limiting ring 5, until it completely separates from the interlayer space formed by the high borosilicate glass outer tank body 1 and the neutral material glass inner tank body 2. After the tank body is inverted, the top of the movable magnetic ring 7 assembled with the new visible light shielding film 6 is aligned with the limiting ring gap, and an initial kinetic energy is applied to make it pass through the mechanical guide structure of the outer limiting ring 4 and the inner limiting ring 5 under the action of gravity acceleration. When the movable magnetic ring 7 enters the interlayer space, the Nd-Fe-B magnet and the magnetic pole array of the fixed magnetic ring 3 generate directional magnetic attraction, achieving millimeter-level precise alignment and adsorption. After the tank body is reset to the vertical state, the new visible light shielding film 6 is completely covered in the double-tank interlayer, thereby adjusting the light shielding effect.

[0029] Through the above steps, based on the modular light shielding adjustment technology of magnetic coupling separation and inertial guidance, the traction load is applied to the visible light shielding film 6 along the tank body axis, and the force is transmitted to the movable magnetic ring 7 through the visible light shielding film 6. When the applied force exceeds the maximum static magnetic holding force between the movable magnetic ring 7 and the fixed magnetic ring 3, the movable magnetic ring 7 moves downward. When the movable magnetic ring 7 completely separates from the double-tank interlayer space, the device is flipped in space. At this time, the top of the movable magnetic ring 7 carrying the new visible light shielding film 6 is coaxially aligned with the limiting ring gap. Through the initial kinetic energy, it is made to slide into the guiding gap under the synergistic action of gravity acceleration and tank body negative pressure. When the movable magnetic ring 7 enters the interlayer space, the fixed magnetic ring 3 generates a magnetic pole directional attraction force, achieving sub-millimeter self-alignment and adsorption. After the device is reset, the new light shielding film is completely covered in the double-tank interlayer, completely solving the problem of sample photodegradation caused by the fixed light spectrum response of traditional double-light shielding tanks.

Claims

1. A portable negative pressure sample storage tank based on double light-shield structure, comprising a high borosilicate glass outer tank body (1); characterized in that: It also includes neutral material glass inner tank (2), fixed magnetic ring (3), outer limiting ring (4), inner limiting ring (5), visible light shielding film (6) and movable magnetic ring (7), the inside of high borosilicate glass outer tank (1) is provided with neutral material glass inner tank (2), the top of high borosilicate glass outer tank (1) is provided with fixed magnetic ring (3), the lower side of high borosilicate glass outer tank (1) is provided with outer limiting ring (4), the lower side of neutral material glass inner tank (2) is provided with inner limiting ring (5), the middle of high borosilicate glass outer tank (1) and neutral material glass inner tank (2) is provided with visible light shielding film (6), the top of visible light shielding film (6) is provided with movable magnetic ring (7) corresponding to fixed magnetic ring (3).

2. The portable negative pressure sample storage tank based on double light-shielding structure according to claim 1, characterized in that: Visible light shielding film (6) is magnetically attracted to fixed magnetic ring (3) through movable magnetic ring (7), the bottom end of visible light shielding film (6) penetrates from the middle of outer limiting ring (4) and inner limiting ring (5) and is placed below them.

3. The portable negative pressure sample storage tank based on double light-shielding structure according to claim 1, characterized in that: The front side of high borosilicate glass outer tank (1) is provided with display scale (8), the top of neutral material glass inner tank (2) is provided with stainless steel cover (9).

4. The portable negative pressure sample storage tank based on double light-shielding structure according to claim 3, characterized in that: The periphery of stainless steel cover (9) is provided with a plurality of anti-skid grooves (10), the center of the top of stainless steel cover (9) is provided with negative pressure valve body (14).

5. The portable negative pressure sample storage tank based on double light-shielding structure according to claim 4, characterized in that: The top of negative pressure valve body (14) is provided with vacuum gauge (11), the thermal expansion coefficient of high borosilicate glass outer tank (1) is less than or equal to 3.3×10-6 / K, the wall thickness of neutral material glass inner tank (2) is 2±0.1mm.

6. The portable negative pressure sample storage tank based on double light-shielding structure according to claim 5, characterized in that: The top of neutral material glass inner tank (2) is provided with outer screw ring (12) corresponding to stainless steel cover (9), the inner side of stainless steel cover (9) is provided with inner thread (13) corresponding to outer screw ring (12), stainless steel cover (9) is threadedly connected with outer screw ring (12) through inner thread (13).

7. The portable negative pressure sample storage tank based on double light-shielding structure according to claim 1, characterized in that: The temperature resistance range of high borosilicate glass outer tank (1) is-30℃-150℃, the heat shock resistance of high borosilicate glass outer tank (1) is greater than or equal to 50℃ / min rapid cooling and heating impact, neutral material glass inner tank (2) is suitable for pH1-13 acid-base environment.

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