Ice-acid cotton swab low-temperature storage device and ice-acid cotton swab preparation method

Abstract

This invention discloses a low-temperature storage device for icy acid swabs and a method for preparing icy acid swabs. The device includes a box with a cavity inside, and a partition separating the cavity into a first chamber and a second chamber. A container is located within the first chamber, with a cover plate pressing against its top. A liquid storage tank is located within the second chamber, containing a storage cavity. A first through-hole is located at the top of the storage tank, allowing access to the storage cavity. A sealing plate is located above the storage tank, pressing against its top. An elastic element is also included, with one end connected to the partition plate and the other end connected to the sealing plate. A connector is located at the top of the sealing plate, with its top extending outside the box. A cover plate is fitted onto the connector. A locking mechanism is located at the top of the box, with the top of the connector connected to the locking mechanism. This invention prevents swabs soaked in acidic solutions from freezing during low-temperature refrigeration, thus avoiding potential damage to the patient's oropharynx when irritated.

Description

Technical Field

[0001] This invention belongs to the technical field of low-temperature storage equipment for cotton swabs, specifically relating to a low-temperature storage device for icy acid cotton swabs and a method for preparing icy acid cotton swabs. Background Technology

[0002] In the medical field, swallowing disorders can occur due to oropharyngeal diseases, esophageal diseases, neuromuscular diseases, and mental illnesses. Swallowing disorders are caused by various factors that make it difficult to swallow safely, affecting food intake and nutrient absorption, and may even lead to aspiration pneumonia, endangering the patient's life. Treatment for swallowing disorders generally involves direct and indirect training. Indirect training uses cold acid stimulation to increase the sensitivity of the swallowing reflex by stimulating the inner wall of the oropharynx with cold, increasing sensory input. Simultaneously, acid stimulation further enhances the swallowing reflex, increases swallowing speed, improves neuromuscular coordination in the oropharynx, increases sensation in the oropharynx, facilitates the recovery of the oropharyngeal reflex, and ultimately improves swallowing function.

[0003] The current method of icy acid stimulation mainly involves soaking cotton swabs in an acidic solution and then refrigerating them. After refrigeration, the cotton swabs can be used to stimulate the patient's oropharynx. However, the existing icy acid cotton swabs freeze after being refrigerated, and the ice on the cotton swabs is irregular. The sharp edges of the ice need to be removed manually before the cotton swabs can be used on the patient. Otherwise, the sharp edges of the ice can cause damage to the patient's oropharynx. Summary of the Invention

[0004] The purpose of this invention is to provide a low-temperature storage device and a method for preparing icy acid swabs, which can achieve separate low-temperature storage of swabs and acidic solutions. When in use, the low-temperature swab is dipped in the low-temperature acidic solution to form an icy acid swab for stimulating the patient's oropharynx. This avoids the situation where swabs dipped in acidic solution freeze when refrigerated at low temperatures, which could damage the patient's oropharynx when stimulating it.

[0005] The following technical solutions are used to achieve the above objectives.

[0006] The present invention provides a low-temperature storage device for icy acid cotton swabs, including a box, a receiving cavity formed in the box, a partition provided in the receiving cavity, and a first cavity and a second cavity formed on both sides of the partition.

[0007] A container is provided in the first cavity, and a cover plate is provided above the container, with the bottom end of the cover plate pressing against the top end of the container; a liquid storage tank is provided in the second cavity, and a liquid storage cavity is formed inside the liquid storage tank. A first through hole for communicating with the liquid storage cavity is opened at the top end of the liquid storage tank, and a sealing plate is provided above the liquid storage tank, with the bottom end of the sealing plate pressing against the top end of the liquid storage tank.

[0008] An elastic element is provided between the sealing plate and the partition plate, with one end connected to the partition plate and the other end connected to the sealing plate. A connector is provided at the top of the sealing plate, with its top end extending out of the box body through the partition plate, the cover plate, and the top wall of the box body. The cover plate is fitted onto the connector. A locking mechanism is provided at the top of the box body, and the top end of the connector is connected to the locking mechanism.

[0009] In some embodiments, the locking mechanism includes a locking box with an installation cavity formed inside. A limiting plate is provided at the top of the locking box. The top end of the connector passes through the locking box and connects to the bottom end of the limiting plate. Two opposing rotating shafts are provided on both sides of the connector inside the installation cavity. The top ends of the rotating shafts extend through the locking box to the outside of the locking box. A limiting stop is provided at the top end of the rotating shaft, and the bottom end of the limiting stop presses against the top end of the limiting plate.

[0010] In some embodiments, outwardly extending support blocks are provided on both sides of the connector, and a first mounting block and a second mounting block are provided on the top wall of the mounting cavity. The first mounting block and the second mounting block are symmetrically arranged with the connector as the center. A rotatable first swing arm is provided on the first mounting block, and a second swing arm is provided on the second mounting block. The first swing arm and the second swing arm are arranged opposite to each other, and the bottom ends of the first swing arm and the bottom ends of the second swing arm respectively press against the support blocks located on both sides of the connector.

[0011] In some embodiments, a return spring is provided between the first and second pendulum rods. One end of the return spring is connected to the first pendulum rod, and the other end is connected to the second pendulum rod. When the first and second pendulum rods press against the support block, the return spring is in its initial state.

[0012] In some embodiments, a take-up roller is sleeved on the rotating shaft, and a take-up rope is wound on the take-up roller. The end of the take-up rope is wound around the first swing rod and the second swing rod. A rotary torsion spring is provided between the take-up roller and the bottom wall of the mounting cavity. One end of the rotary torsion spring is fixed to the bottom wall of the mounting cavity, and the other end is fixed to the take-up roller. When the first swing rod and the second swing rod press against the support block, the rotary torsion spring is in its initial state.

[0013] In some embodiments, a mounting plate is provided in the first cavity, at least one groove is formed on the mounting plate, the container is provided in the groove, and a first through slot is formed on the mounting plate for the connector to pass through.

[0014] In some embodiments, the mounting plate abuts against the two side walls of the first cavity, and a plurality of first pulleys are provided at the bottom of the mounting plate, the first pulleys slidably abutting against the top surface of the partition.

[0015] In some embodiments, an opening for communicating with the accommodating cavity is provided on any side wall of the housing, and a door that can rotatably close the opening is provided on the housing. A display unit is provided on the outer wall of the door, and a first probe and a second probe are provided on the inner wall of the door. Both the first probe and the second probe are connected to the display unit, with the first probe facing the first cavity and the second probe facing the second cavity.

[0016] In some embodiments, a plurality of second pulleys are provided at the bottom of the housing, and a swingable locking lever is provided on the second pulley. When the locking lever swings toward the second pulley at one end, the locking lever presses against the second pulley.

[0017] This invention also provides a method for preparing icy acid cotton swabs.

[0018] Rotating the shaft drives the limit block to rotate until the limit block separates from the limit plate. Under the elastic reset action of the elastic element, the sealing plate is lifted towards the partition, which drives the connecting piece and the cover plate sleeved on the connecting piece to lift, so that the sealing plate separates from the liquid storage tank and the cover plate separates from the container.

[0019] Take out the cotton swabs stored at low temperature from the container, insert the cotton swabs through the first through hole into the liquid storage chamber to pick up the acidic solution stored at low temperature, and make ice acid cotton swabs.

[0020] Press the connector until the sealing plate stretches and the elastic element descends to press against the top of the liquid storage tank, and then the cover plate descends to press against the top of the container. Then rotate the shaft until the bottom of the limit block presses against the top of the limit plate, sealing the liquid storage tank and the container.

[0021] The present invention provides a low-temperature storage device and a method for preparing icy acid swabs. On one hand, a receiving cavity is formed inside a box, and a partition is installed within the receiving cavity to divide it into a first cavity and a second cavity. A container is provided in the first cavity to hold and store swabs, and a storage tank is provided in the second cavity, containing an acidic solution. During use, a compressor or other refrigeration mechanism allows the box to function as a refrigerator, subjecting the first and second cavities inside the box to low-temperature treatment. During storage, the swabs and acidic solution are kept refrigerated. When needed, a swab is taken from the container and inserted into the storage cavity of the storage tank to absorb the acidic solution, thus forming an icy acid swab that can be directly used to stimulate the patient's oropharynx. This method of storing the swabs and acidic solution separately at low temperatures, compared to the traditional method of absorbing the acidic solution into the swabs before low-temperature storage, avoids the acidic solution on the swabs freezing into blocks that could damage the patient's oropharynx.

[0022] On the other hand, by setting a cover plate above the container to press against the top of the container, and a sealing plate above the storage tank to press against the top of the storage tank, an elastic element is provided between the sealing plate and the partition. A connector is connected to the sealing plate, and the cover plate is fitted onto the connector. The top of the connector extends out of the box and is connected to a locking mechanism. In use, the locking mechanism is used to lock the connector, so that the sealing plate presses against the top of the storage tank and the cover plate presses against the top of the container, achieving separate and sealed storage of cotton swabs and acidic solution. When the connector is released from the locking mechanism, the sealing plate moves closer to the partition under the action of the elastic element, which drives the connector and the cover plate fitted onto the connector to lift, opening the container and the storage tank. This facilitates the production of icy acid cotton swabs. The structure is simple and easy to use. Attached Figure Description

[0023] Figure 1 This is the front view of the present invention;

[0024] Figure 2 This is a partial cross-sectional view of the present invention;

[0025] Figure 3 This is a perspective view of the mounting plate of the present invention;

[0026] Figure 4 This is a cross-sectional view of the locking mechanism of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Box body; 11. Receiving cavity; 111. First cavity; 112. Second cavity; 12. Partition; 121. First through groove; 13. Second pulley; 14. Locking rod; 15. Door; 16. Display unit; 17. Handle; 18. Hinge; 19. Fifth through groove;

[0029] 20. Container; 21. Mounting plate; 211. Groove; 212. Second through groove; 22. Cover plate; 23. First pulley; 30. Liquid storage tank; 31. Liquid storage cavity; 32. First through hole; 40. Sealing plate; 50. Elastic element;

[0030] 60. Locking mechanism; 61. Locking box; 611. Third through slot; 612. Second through hole; 62. Mounting cavity; 63. Rotating shaft; 631. Limiting block; 64. Take-up roller; 65. Take-up rope; 66. Rotary torsion spring; 67. First mounting block; 671. First rocker arm; 68. Second mounting block; 681. Second rocker arm; 69. Return spring;

[0031] 70. Connector; 71. Limiting plate; 72. Support block. Detailed Implementation

[0032] To facilitate understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0033] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0034] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the related listed items.

[0035] It should be noted that in this article, "fixed to" or "connected to" can mean directly fixed to or connected to a component, or indirectly fixed to or connected to a component.

[0036] like Figures 1 to 3 As shown, the cryogenic storage device for cotton swabs provided in this embodiment includes a housing 10, within which a receiving cavity 11 is formed. A partition 12 is provided within the receiving cavity 11, dividing the receiving cavity 11 into a first cavity 111 and a second cavity 112 located on either side of the partition 12. A mounting plate 21 is provided within the first cavity 111, and at least one groove 211 is formed on the mounting plate 21. A container 20 for storing cotton swabs is provided within the groove 211, and a pressure plate is positioned above the container 20 to press against the swabs. The top of the container 20 is covered by a cover plate 22 for sealing the container 20 to achieve sealed storage of cotton swabs. A liquid storage tank 30 is provided in the second cavity 112. A liquid storage cavity 31 for storing acidic solution is formed in the liquid storage tank 30. A first through hole 32 is provided on the top of the liquid storage tank 30 to conduct through the liquid storage cavity 31. The first through hole 32 is used for inserting cotton swabs into the liquid storage cavity 31 to absorb acidic solution. A sealing plate 40 is provided above the liquid storage tank 30 to press against the top of the liquid storage tank 30 to seal the liquid storage cavity 31.

[0037] A plurality of first pulleys 23 are provided at the bottom of the mounting plate 21. The bottom end of the first pulley 23 slidably abuts against the top of the partition plate 12 to drive the mounting plate 21 to move within the first cavity 111, facilitating the assembly and disassembly of the mounting plate 21. The two sides of the mounting plate 21 abut against the two side cavities of the first cavity 111 to improve the installation stability of the mounting plate 21 within the first cavity 111.

[0038] An opening is provided on any side wall of the housing 10, the opening being connected to the receiving cavity 11, for medical personnel to add cotton swabs into or remove cotton swabs from the container 20 of the first cavity 111 through the opening; to add acidic solution into the storage tank 30 of the second cavity 112, or to insert cotton swabs into the storage cavity 31 of the storage tank 30 to collect acidic solution.

[0039] A rotatable door 15 is provided on the side of the housing 10 near the opening. The door 15 is connected to the housing 10 by a hinge 18 to open or close the opening. A display unit 16 is provided on the outer wall of the door 15. A first probe and a second probe are provided on the inner wall of the door 15. Both the first probe and the second probe are connected to the display unit 16, with the first probe facing the first cavity 111 and the second probe facing the second cavity 112.

[0040] In use, the first probe detects the temperature inside the first cavity 111 and transmits it to the display unit 16, and the second probe detects the temperature inside the second cavity 112 and transmits it to the display unit 16. The display unit 16 displays the temperatures of the first cavity 111 and the second cavity 112 for medical personnel to view and determine whether the temperature meets the requirements for making ice acid swabs.

[0041] Multiple second pulleys 13 are provided at the bottom of the box body 10. A swingable locking rod 14 is provided on the second pulley 13. When the locking rod 14 swings towards the second pulley 13 at one end, the locking rod 14 presses against the second pulley 13. During use, the ice acid swab is made by sliding the second pulley 13 close to the patient, thus avoiding contamination of the ice acid swab when holding it close to the patient.

[0042] The accommodating cavity 11 described in this embodiment is provided with a refrigeration mechanism for providing a cold source to the first cavity 111 and the second cavity 112. For example, a compression refrigeration device, an absorption refrigeration device, a steam jet refrigeration device, a heat pump refrigeration device, and an electric heating refrigeration device are all acceptable as long as they can provide a cold source to the first cavity 111 and the second cavity 112 and set different cooling temperatures for the first cavity 111 and the second cavity 112 as needed, so that the temperature of the first cavity 111 and the second cavity 112 can meet the low-temperature storage requirements of cotton swabs and acidic solutions. It is not limited to a specific cooling mechanism.

[0043] A handle 17 is provided on the door 15 to improve the ease of opening and closing the door 15. The display unit 16 in this embodiment is a display screen. The display screen is provided with adjustment buttons (not shown in the figure, the same below) for controlling the temperature in the first cavity 111 and the second cavity 112, and control buttons (not shown in the figure, the same below) for controlling the start and stop of the ice acid cotton swab low temperature storage device.

[0044] An elastic element 50 is provided between the sealing plate 40 and the partition plate 12. One end of the elastic element 50 is connected to the partition plate 12 and the other end is connected to the sealing plate 40. When the sealing plate 40 presses against the top of the liquid storage tank 30, the elastic element 50 is in a stretched state.

[0045] A connector 70 is welded to one end of the sealing plate 40 away from the liquid storage tank 30. The top end of the connector 70 extends into the first cavity 111 through the first through groove 121 on the partition plate 12, and extends out of the box body 10 through the second through groove 212 on the mounting plate 21, the fourth through groove (not shown in the figure, the same below) on the cover plate 22, and the fifth through groove 19 on the top of the box body 10. The cover plate 22 is fixed to the connector 70 by interference fit with the connector 70 through the fourth through groove. In use, the sealing plate 40 and the cover plate 22 rise and fall with the rise and fall of the connector 70 to realize the opening and closing of the container 20 and the liquid storage tank 30.

[0046] Combination Figure 4 As shown, a locking mechanism 60 is provided on the housing 10. The top end of the connector 70 is connected to the locking mechanism 60 to restrict the lifting and lowering of the connector 70. The locking mechanism 60 includes a locking box 61, and an installation cavity 62 is provided inside the locking box 61. A third through groove 611 for guiding the installation cavity 62 is provided on both the bottom plate and the top plate of the locking box 61. The top end of the connector 70 is connected to a limiting plate 71 at the top of the locking box 61 by the two third through grooves 611. Two opposing limiting blocks 631 are provided on the top of the limiting plate 71 to restrict the lifting and lowering of the limiting plate 71, thereby restricting the lifting and lowering of the connector 70.

[0047] A rotatable shaft 63 is provided in the mounting cavity 62 at the positions on both sides of the connector 70. Two second through holes 612 are provided on the top wall of the locking box 61. The two second through holes 612 are symmetrically arranged with the third through groove 611 as the symmetrical point. The top end of the shaft 63 extends through the second through hole 612 to the outside of the locking box 61 and is connected to the limiting block 631.

[0048] In use, rotating the shaft 63 drives the limiting block 631 to rotate until the limiting block 631 disengages from the limiting plate 71. At this point, the limiting plate 71 loses the blocking pressure of the limiting block 631, and the elastic element 50 elastically resets, causing the sealing plate 40 to move closer to the partition 12, which in turn lifts the connecting member 70. The connecting member 70 then lifts the cover plate 22 and the limiting plate 71, thus simultaneously opening the liquid storage tank 30 and the container 20, allowing for sealing when necessary. When the container 20 and the liquid storage tank 30 are connected, a force is applied to the limiting plate 71 to overcome the restoring force of the elastic member 50. This will press the limiting plate 71 down, causing the connecting member 70, the cover plate 22 and the sealing plate 40 to descend until the cover plate 22 presses against the container 20 and the sealing plate 40 presses against the liquid storage tank 30. Then, the rotating shaft 63 is rotated so that the limiting block 631 presses against the limiting plate 71, restricting the lifting and lowering of the limiting plate 71. This will achieve the sealing of the container 20 and the liquid storage chamber 31.

[0049] Support blocks 72 extending outward are provided on both sides of the connector 70 located in the mounting cavity 62. A first mounting block 67 and a second mounting block 68 are provided on the top cavity wall of the mounting cavity 62, symmetrically arranged on both sides of the connector 70. A first swing rod 671 is provided on the first mounting block 67, and a swing rod is provided on the second mounting block 68. The top end of the first swing rod 671 is swayably connected to the first mounting block 67, and the bottom end abuts against the support block 72. The top end of the second swing rod 681 is swayably connected to the second mounting block 68, and the bottom end abuts against the other support block 72, so as to further improve the limiting stability of the connector 70.

[0050] A take-up roller 64 is sleeved on the rotating shaft 63, and a take-up rope 65 is wound on the take-up roller 64. The end of the take-up rope 65 near the first swing rod 671 is wound around the first swing rod 671, and the end of the take-up rope 65 near the second swing rod 681 is wound around the second swing rod 681. When the rotating shaft 63 rotates, the take-up roller 64 rotates synchronously to wind up the take-up rope 65, pulling the first swing rod 671 and the second swing rod to swing away from the support block 72, so that the connecting member 70 can be lifted under the elastic action of the elastic member 50 without being limited by the first swing rod 671 and the second swing rod 681.

[0051] A return spring 69 is provided between the first swing arm 671 and the second swing arm 681. One end of the return spring 69 is connected to the first swing arm 671, and the other end is connected to the second swing arm 681. A rotary torsion spring 66 is sleeved on the rotating shaft 63. The bottom end of the rotary torsion spring 66 is fixed to the bottom wall of the mounting cavity 62, and the top end is fixed to the take-up roller 64. When the rotating shaft 63 is rotated, the rotary torsion spring 66 is compressed, and the return spring 69 is stretched by the first swing arm 671 and the second swing arm 681. When the external force of rotating the rotating shaft 63 is removed, the return spring 69 and the rotary torsion spring 66 reset and drive the rotating shaft 63 to rotate in the opposite direction. The take-up roller 64 unwinds, and the first swing arm 671 and the second swing arm 681 reset and press against the support block 72 again, improving the ease of use of the locking mechanism 60.

[0052] The elastic element 50 described in this embodiment is a spring.

[0053] This embodiment also provides a method for preparing icy acid cotton swabs:

[0054] Push the box 10 to slide closer to the patient, rotate the shaft 63 until the limit block 631 disengages from the limit plate 71, and the first swing rod 671 and the second swing rod 681 disengage from the support block 72 under the pull of the winding rope 65.

[0055] The elastic element 50 elastically resets, causing the sealing plate 40 to move against the partition plate 12, pushing the connector 70 and the cover plate 22 to lift, opening the container 20 and the liquid storage tank 30;

[0056] Take out a cotton swab from container 20, insert it into the liquid storage chamber 31 through the first through hole 32 at the top of the liquid storage tank 30 to pick up the acidic solution, and then take it out to make an ice acid cotton swab. It can be directly inserted into the patient's oropharynx to stimulate the patient's oropharynx for swallowing stimulation training.

[0057] After stimulating the patient's throat or preparing the icy acid swab, press the connector 70 until the sealing plate 40 stretches the elastic element 50 and descends to press against the top of the reservoir 30, causing the cover plate 22 to descend and press against the top of the container 20. Then rotate the shaft 63 until the bottom end of the limiting block 631 presses against the top of the limiting plate 71, sealing the reservoir 30 and the container 20 to avoid contamination of the swab and / or acidic solution.

[0058] The following preparatory steps are included before preparing icy acid swabs:

[0059] First, unlock the limiting plate 71, so that the sealing plate 40 is lifted under the elastic reset action of the elastic element 50, which drives the connecting piece 70 and the cover plate 22 to be lifted, opening the container 20 and the liquid storage tank 30.

[0060] Then, a cotton swab is placed into the container 20, and an acidic solution is injected into the storage chamber 31 of the storage tank 30 through the first through hole 32;

[0061] Finally, pressing the limiting plate 71 causes the limiting plate 71 to drive the connecting piece 70 down until the cover plate 22 presses against and seals the container 20, the sealing plate 40 presses against and seals the liquid storage tank 30, the door body 15 is rotated to seal the accommodating cavity 11, and the first cavity 111 and the second cavity 112 are cooled down, thereby separating the cotton swabs and acidic solution for low-temperature storage.

[0062] The connector 70 described in this embodiment can be replaced with an electric push rod structure, and the locking mechanism 60 and the elastic element 50 can be eliminated, so as to achieve the purpose of automatic lifting and lowering of the cover plate 22 and the sealing plate 40 under the drive of the electric push rod. Of course, other structures that can achieve the lifting and lowering of the cover plate 22 and the sealing plate 40 can also be used, such as a pneumatic rod, as long as the lifting and lowering of the cover plate 22 and the sealing plate 40 can be achieved, and it is not limited to the technical solution described in this embodiment.

[0063] The cryogenic storage device and preparation method for cryogenic cotton swabs described in this embodiment utilize a compressor or other refrigeration mechanism to make the housing 10 function as a refrigerator, subjecting the first cavity 111 and the second cavity 112 within the housing 10 to low-temperature treatment. During storage, the cotton swabs and acidic solution are refrigerated at low temperatures. When needed, the cotton swabs are taken out of the container 20 and inserted into the storage cavity 31 of the storage tank 30 to absorb the acidic solution, thus forming cryogenic cotton swabs that can be directly used to stimulate the patient's oropharynx. Compared to the traditional method of absorbing the acidic solution into the cotton swabs before low-temperature storage, the method of storing the cotton swabs and acidic solution separately at low temperatures avoids the situation where the acidic solution on the cotton swabs freezes into blocks, causing ice to damage the patient's oropharynx.

[0064] The above embodiments are not an exhaustive list based on the present invention, and there may be many other embodiments not listed. Any substitutions and improvements made without departing from the concept of the present invention are within the protection scope of the present invention.

Claims

1. A low-temperature storage device for icy acid cotton swabs, characterized in that, The device includes a housing, within which a receiving cavity is formed. A partition is provided within the receiving cavity, and a first cavity and a second cavity are formed on both sides of the partition. A refrigeration mechanism for providing a cold source to the first cavity and the second cavity is provided within the receiving cavity. An opening for communicating with the receiving cavity is provided on any side wall of the housing. The first cavity contains a container for storing cotton swabs, and a cover plate is provided above the container, with the bottom end of the cover plate pressing against the top end of the container. The second cavity contains a liquid storage tank, and a liquid storage cavity for storing acidic solution is formed inside the liquid storage tank. A first through hole is opened at the top end of the liquid storage tank to allow cotton swabs to be inserted into the liquid storage cavity to absorb the acidic solution. A sealing plate is provided above the liquid storage tank, with the bottom end of the sealing plate pressing against the top end of the liquid storage tank. An elastic element is provided between the sealing plate and the partition plate. One end of the elastic element is connected to the partition plate, and the other end is connected to the sealing plate. When the sealing plate presses against the top of the liquid storage tank, the elastic element is in a stretched state. A connector is provided on the top of the sealing plate. The top end of the connector passes through the partition plate, the cover plate, and the top wall of the tank body in sequence and extends outside the tank body. The cover plate is fixed to the connector by an interference fit with the connector through a fourth through groove. A locking mechanism is provided on the top of the tank body, and the top end of the connector is connected to the locking mechanism. The locking mechanism includes a locking box with an installation cavity formed inside. A limiting plate is provided at the top of the locking box. The top end of the connector passes through the locking box and connects to the bottom end of the limiting plate. Two opposing rotating shafts are provided on both sides of the connector inside the installation cavity. The top ends of the rotating shafts extend through the locking box and out of the locking box. A limiting stop is provided at the top end of the rotating shaft, and the bottom end of the limiting stop presses against the top end of the limiting plate.

2. The low-temperature storage device for icy acid cotton swabs as described in claim 1, characterized in that, Support blocks extending outward are provided on both sides of the connector. A first mounting block and a second mounting block are provided on the top wall of the mounting cavity. The first mounting block and the second mounting block are symmetrically arranged with the connector as the center. A rotatable first swing arm is provided on the first mounting block, and a rotatable second swing arm is provided on the second mounting block. The first swing arm and the second swing arm are arranged opposite to each other, and the bottom ends of the first swing arm and the bottom ends of the second swing arm respectively press against the support blocks located on both sides of the connector.

3. The low-temperature storage device for icy acid cotton swabs as described in claim 2, characterized in that, A return spring is provided between the first and second swing arms. One end of the return spring is connected to the first swing arm, and the other end is connected to the second swing arm. When the first and second swing arms press against the support block, the return spring is in its initial state.

4. The low-temperature storage device for icy acid cotton swabs as described in claim 2, characterized in that, A take-up roller is fitted onto the rotating shaft, and a take-up rope is wound on the take-up roller. The end of the take-up rope is wound around the first swing rod and the second swing rod. A rotary torsion spring is provided between the take-up roller and the bottom wall of the mounting cavity. One end of the rotary torsion spring is fixed to the bottom wall of the mounting cavity, and the other end is fixed to the take-up roller. When the first swing rod and the second swing rod press against the support block, the rotary torsion spring is in its initial state.

5. The cryogenic storage device for icy acid swabs as described in any one of claims 1 to 4, characterized in that, A mounting plate is provided in the first cavity, at least one groove is provided on the mounting plate, the container is provided in the groove, and a first through groove is provided on the mounting plate for the connector to pass through.

6. The low-temperature storage device for icy acid cotton swabs as described in claim 5, characterized in that, The mounting plate abuts against the two side walls of the first cavity. A plurality of first pulleys are provided at the bottom of the mounting plate, and the first pulleys slide against the top surface of the partition.

7. The cryogenic storage device for icy acid swabs as described in any one of claims 1 to 4, characterized in that, The enclosure is provided with a door that can rotatably close the opening. A display unit is provided on the outer wall of the door, and a first probe and a second probe are provided on the inner wall of the door. Both the first probe and the second probe are connected to the display unit, with the first probe facing the first cavity and the second probe facing the second cavity.

8. The cryogenic storage device for icy acid swabs as described in any one of claims 1 to 4, characterized in that, The bottom of the box is provided with a plurality of second pulleys, and a swingable locking rod is provided on the second pulley. When the locking rod swings toward the second pulley at one end, the locking rod presses against the second pulley.

9. A method for preparing icy acid cotton swabs based on the icy acid cotton swab low-temperature storage device according to claim 1, characterized in that, Rotating the shaft drives the limit block to rotate until the limit block separates from the limit plate. Under the elastic reset action of the elastic element, the sealing plate is lifted towards the partition, which drives the connecting piece and the cover plate sleeved on the connecting piece to lift, so that the sealing plate separates from the liquid storage tank and the cover plate separates from the container. Take out the cotton swabs stored at low temperature from the container, insert the cotton swabs through the first through hole into the liquid storage chamber to pick up the acidic solution stored at low temperature, and make ice acid cotton swabs.

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