Water bath type sterilizer

Abstract

The invention relates to the technical field of sterilizers, in particular to a water bath type sterilizer which comprises a sterilizer body and a water storage tank installed at the top of the outer side of the sterilizer, the water storage tank is used for providing hot water for the sterilizer body, a loading frame is arranged at the position of an inner cavity of the sterilizer body and used for supporting bagged articles, and the water bath type sterilizer is arranged in the inner cavity of the sterilizer body. A filter plate is arranged at the bottom of the loading frame; according to the water bath type sterilizer, when bagged articles are placed on the supporting net and water bath type sterilization is carried out through heat circulating water in the sterilizer body, the supporting net can move upwards relative to the loading frame under the connection action of the auxiliary floating mechanism and the inflation mechanism, and the supporting net can be used for supporting the articles when moving upwards. According to the bagged article sterilizing device, a plurality of bagged articles on the supporting net can float in water, so that the bagged articles are in full contact with heat circulating water, the effect of fully soaking and sterilizing the bagged articles is realized, and the sterilizing efficiency of the bagged articles is further ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of sterilizers, in particular to a water bath sterilizer. Background Art

[0002] The main components of a water bath sterilizer usually include a sterilization tank, a water storage tank, internal and external circulation piping systems, an electrical control system, a sterilization item loading frame, etc. The water bath sterilizer heats the circulating water inside it through the water storage tank, and the heated circulating water is passed into the sterilization tank. By immersing the items in the hot circulating water, high temperature and high pressure sterilization of the items is achieved.

[0003] However, during the sterilization process of existing bagged items, since a large number of bagged items are directly placed in the loading frame, the bagged items in the loading frame often pile up on each other. When the piled items are immersed in the sterilizer for sterilization, the immersion effect is poor due to the small immersion contact surface, resulting in uneven heating of the bagged items, which in turn affects the sterilization effect. Summary of the Invention

[0004] The object of the present invention is to provide a water bath sterilizer to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a water bath sterilizer, comprising a sterilizer body and a water storage tank mounted on the top of the outer side of the sterilizer, the water storage tank being used to provide hot water to the sterilizer body, a loading frame being provided in the internal cavity of the sterilizer body, the loading frame being used to support bagged items, a filter plate being provided at the bottom of the loading frame, and the filter plate being provided with a plurality of filter holes;

[0006] A support net is provided inside the loading frame and above the filter plate, and the bagged items are placed on the support net. A connecting mechanism for connecting the support net is provided inside the loading frame;

[0007] Two auxiliary floating mechanisms are provided on the support net, and an inflation mechanism is provided on the loading frame. The inflation mechanism inflates the auxiliary floating mechanisms through the change of air pressure inside the sterilizer body, so that the bagged items on the support net float in the loading frame, so that the bagged items are dispersed from each other during water bath sterilization.

[0008] There are multiple loading frames, each of which has a limiting snap ring at the bottom, and the multiple loading frames are stacked in sequence from bottom to top inside the sterilizer body through the limiting snap rings.

[0009] The connecting mechanism includes a connecting sleeve, a connecting rod, a connecting block and a support clamping mechanism. There are four connecting sleeves, which are fixedly installed around the support net respectively. The connecting rod slides through the connecting sleeve. There are four connecting blocks, which are located at the four corners of the support net respectively, and one end of the two vertically distributed connecting rods is fixedly connected to the connecting block.

[0010] There are four support clamping mechanisms, which are fixedly installed at the four corners of the top of the filter plate respectively. The support clamping mechanisms are used to support and limit the connecting blocks, and the support net is connected through the provided connecting mechanisms.

[0011] The support clamping mechanism includes a support tube, a clamping rod, a clamping block, a pushing block, a guide rod and a clamping spring. The bottom of the support tube is fixedly mounted on the filter plate. Two clamping interfaces are provided on the support tube, and the clamping block slides through the clamping interfaces. The connecting block is slidably sleeved on the outside of the support tube, and the connecting block is located at the bottom of the clamping block. One end of the two clamping blocks located inside the clamping interface is fixedly connected to the two clamping rods respectively. One end of the clamping rod away from the clamping block is located at the top opening of the support tube and fixedly connected to the pushing block.

[0012] The guide rod is fixedly installed inside the support tube, and the two clamping rods are respectively slidably sleeved on the outside of the guide rod;

[0013] There are multiple clamping springs, and both ends of the multiple clamping springs are fixedly connected to the sides of the two clamping rods that are close to each other. Through the provided supporting clamping mechanism, the connecting block is supported.

[0014] Among them, the auxiliary floating mechanism includes a float plate, a float ball, a connecting pipe and an air guide pipe. There are multiple float plates, and the multiple float plates are distributed in a row on the support net. The support net is provided with mounting holes at positions corresponding to the float plates, and the float plates pass through the mounting holes. The connecting pipe passes through the float plate. The top of the connecting pipe is connected to the float ball, and the bottoms of multiple connecting pipes are connected to the air guide pipe. One end of the air guide pipe is connected to the inflation mechanism, and a one-way valve is installed on the air guide pipe near the inflation mechanism.

[0015] Among them, the inflation mechanism includes a sealed shell, an air storage part, a push plate, an air guide cylinder and a propulsion member. The sealed shell is fixedly installed on the outside of the loading frame, the air storage part is located inside the sealed shell, the push plate is slidably connected inside the sealed shell, and one side of the push plate is in contact with the air storage part. There are two air guide cylinders, one end of the two air guide cylinders is connected to the sealed shell, and the propulsion member is located at the air guide cylinder. The two propulsion members are used to push the push plate, and the auxiliary floating mechanism is inflated through the provided inflation mechanism.

[0016] Among them, the gas storage part includes a high-temperature resistant gas storage bag, one side of the high-temperature resistant gas storage bag is connected to an air outlet pipe, the air outlet pipe passes through one side of the loading frame, and one end of the air outlet pipe located inside the loading frame is connected to the air guide pipe. The pushing plate is used to push the high-temperature resistant gas storage bag, and the gas storage part is provided to achieve the function of storing gas.

[0017] In which, the pushing member includes a pushing rod, a buffer spring and a pushing piston, one end of the pushing rod is fixedly connected to the pushing plate, and the other end of the pushing rod passes through the sealing shell and is fixedly connected to the pushing piston, the pushing rod is slidingly connected to the sealing shell, and the pushing piston is cooperatively connected to the air guide cylinder, the buffer spring is sleeved on the outside of the pushing rod, one end of the buffer spring is fixedly connected to the outside of the sealing shell, and the other end of the buffer spring is fixedly connected to the pushing piston, and the pushing plate is connected and pushed by the provided pushing member.

[0018] Wherein, a limiting ring is provided on the inner ring of the gas guide cylinder, the limiting ring is close to the opening of the gas guide cylinder, and the limiting ring is used to limit the pushing piston.

[0019] A cover is provided on the loading frame at the uppermost layer of the internal cavity of the sterilizer body, and a plurality of through holes are provided on the cover. The cover prevents the bagged articles on the uppermost layer from floating out of the loading frame.

[0020] The present invention has at least the following beneficial effects:

[0021] When the present invention is in use, a support net is provided inside the loading frame, and when a large number of bagged articles are sterilized, the bagged articles are directly placed on the support net. When water bath sterilization is performed by hot circulating water inside the sterilizer body, the support net is connected with the auxiliary floating mechanism and the inflation mechanism, so that the support net can move upward relative to the loading frame. At the same time, the support net can make multiple bagged articles on the support net float in the water, so that the bagged articles are fully in contact with the hot circulating water, thereby achieving the effect of full immersion sterilization of the bagged articles, and further ensuring the sterilization efficiency of the bagged articles. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the loading frame structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the cover structure of the present invention;

[0025] Figure 4This is a schematic diagram of the support network structure of the present invention;

[0026] Figure 5 This is a schematic side sectional structural diagram of the loading frame of the present invention;

[0027] Figure 6 This is a side view of the structure of the float of the present invention;

[0028] Figure 7 This is a schematic diagram of the connecting ring structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the gas storage component of the present invention;

[0030] Figure 9 This is a schematic diagram of the high-temperature air storage bag structure of the present invention;

[0031] Figure 10 This is a schematic diagram of the airway structure of the present invention;

[0032] Figure 11 This is a schematic diagram of the support tube structure of the present invention;

[0033] Figure 12 For the present invention Figure 11 Schematic diagram of the enlarged structure of area A in the middle;

[0034] Figure 13 For the present invention Figure 11 Schematic diagram of the enlarged structure of the middle B area;

[0035] Figure 14 This is a schematic diagram of the bottom structure of the support net of the present invention;

[0036] Figure 15 This is a schematic diagram of the connecting sleeve structure of the present invention;

[0037] Figure 16 For the present invention Figure 15 Schematic diagram of the enlarged structure of the middle C area.

[0038] In the figure: 1. Sterilizer body; 2. Water storage tank; 3. Loading frame; 31. Filter plate; 32. Limiting clamp ring; 33. Cover plate; 4. Support net; 5. Connecting mechanism; 51. Connecting sleeve; 511. Opening; 512. Velcro; 513. Velcro; 52. Connecting rod; 53. Connecting block; 54. Support clamping mechanism; 541. Support tube; 542. Clamping rod; 543. Clamping block; 544. Pushing block; 545. Guide rod; 546. Snap-fit ​​spring; 6. Auxiliary floating mechanism; 61. Float plate; 62. Float ball; 63. Connecting tube; 64. Air guide tube; 7. Inflating mechanism; 71. Sealing shell; 711. Connecting ring; 712. Sealing cover; 713. Air nozzle; 72. Air storage component; 721. High-temperature air storage bag; 722. Air outlet pipe; 73. Push plate; 74. Air guide cylinder; 741. Limiting ring; 75. Propelling component; 751. Push rod; 752. Buffer spring; 753. Push piston. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] Example 1

[0041] See also Figures 1 to 2 A water bath sterilizer includes a sterilizer body 1 and a water storage tank 2 installed on the top of the outer side of the sterilizer. The water storage tank 2 is used to provide hot water to the sterilizer body 1. A loading frame 3 is provided in the internal cavity of the sterilizer body 1. The loading frame 3 is used to support bagged items. A filter plate 31 is provided at the bottom of the loading frame 3, and the filter plate 31 is provided with a plurality of filter holes.

[0042] In this embodiment, the bagged items can be soft-packaged items such as self-supporting bags, aluminum foil bags, and vacuum transparent bags. These packaging forms are commonly used in the food and pharmaceutical industries. The water bath sterilizer can ensure that the items in the package are sterile.

[0043] See also Figure 3 There are multiple loading frames 3, and each of the multiple loading frames 3 is provided with a limiting snap ring 32 at the bottom. The multiple loading frames 3 are stacked in sequence from bottom to top inside the sterilizer body 1 through the limiting snap ring 32. The setting of the limiting snap ring 32 can limit the upper and lower adjacent loading frames 3, so that multiple layers of loading frames 3 can be stacked on each other and placed inside the sterilizer body 1, thereby being able to simultaneously perform water bath sterilization on a large number of bagged items;

[0044] A cover plate 33 is provided on the loading frame 3 located at the uppermost layer of the internal cavity of the sterilizer body 1, and a plurality of through holes are provided on the cover plate 33;

[0045] This can limit the position of the bagged articles at the uppermost loading frame 3 and prevent the bagged articles from floating out due to the buoyancy of the hot circulating water.

[0046] A support net 4 is provided inside the loading frame 3 and above the filter plate 31. In this embodiment, the support net 4 is relatively light, so when immersed in the hot circulating water, it has a certain buoyancy, which can drive the bagged items to move upward along the water. The bagged items are placed on the support net 4. A connecting mechanism 5 for connecting the support net 4 is provided inside the loading frame 3.

[0047] See also Figures 11 to 13 The connecting mechanism 5 includes a connecting sleeve 51, a connecting rod 52, a connecting block 53 and a support clamping mechanism 54. There are four connecting sleeves 51, which are fixedly installed around the support net 4. The connecting rod 52 slides through the connecting sleeve 51. There are four connecting blocks 53, which are located at the four corners of the support net 4, and one end of the two vertically distributed connecting rods 52 is fixedly connected to the connecting block 53.

[0048] There are four supporting and clamping mechanisms 54 , which are respectively fixedly mounted at the four corners of the top of the filter plate 31 , and are used to support and limit the connection block 53 .

[0049] The support clamping mechanism 54 includes a support tube 541, a clamping rod 542, a clamping block 543, a pushing block 544, a guide rod 545 and a clamping spring 546. The bottom of the support tube 541 is fixedly installed on the filter plate 31. The support tube 541 is provided with two clamping interfaces, and the clamping block 543 slides through the clamping interfaces. The connecting block 53 is slidably sleeved on the outside of the support tube 541, and the connecting block 53 is located at the bottom of the clamping block 543. In this embodiment, the clamping block 543 is wedge-shaped, which makes it easy for the connecting block 53 to be inserted from the top of the support tube 541 and move down to the bottom of the support tube 541 through the clamping block 543. One end of the two clamping blocks 543 located inside the clamping interface is fixedly connected to the two clamping rods 542 respectively, and the end of the clamping rod 542 away from the clamping block 543 is located at the top opening 511 of the support tube 541 and fixedly connected to the pushing block 544.

[0050] The guide rod 545 is fixedly installed inside the support tube 541, and the two clamping rods 542 are respectively slidably sleeved on the outside of the guide rod 545;

[0051] There are multiple clamping springs 546, and both ends of the multiple clamping springs 546 are fixedly connected to the sides of the two clamping rods 542 that are close to each other;

[0052] Specific implementation process: When installing the support net 4, the four connecting blocks 53 are respectively sleeved on the outside of the corresponding support tube 541, and the connecting blocks 53 pass through the two clamping blocks 543 of the support tube 541, and then the support net 4 is installed in the loading frame 3 through the connecting sleeve 51 and the connecting rod 52. At the same time, when the support net 4 needs to be disassembled, the two pushing blocks 544 on the support tube 541 are pressed respectively to move the two pushing blocks 544 toward each other. When the pushing blocks 544 move, the clamping blocks 543 are further driven by the clamping rod 542 to move along the clamping interface to the inside of the support tube 541. At this time, the support net 4 can be pushed up to achieve quick disassembly of the support net 4.

[0053] See also Figures 4 to 10 Two auxiliary floating mechanisms 6 are provided on the supporting net 4, and an inflation mechanism 7 is provided at the loading frame 3. The inflation mechanism 7 inflates the auxiliary floating mechanisms 6 through the change of the air pressure inside the sterilizer body 1, so that the bagged items at the supporting net 4 float in the loading frame 3, so that the bagged items are dispersed from each other during water bath sterilization.

[0054] The auxiliary floating mechanism 6 includes a floating plate 61, a floating ball 62, a connecting pipe 63 and an air guide pipe 64. There are multiple floating plates 61, and the multiple floating plates 61 are distributed in a row on the support net 4. The support net 4 is provided with a mounting hole at the position corresponding to the floating plate 61, and the floating plate 61 passes through the mounting hole. The connecting pipe 63 passes through the floating plate 61. In this embodiment, the connecting pipe 63 is a hard pipe, so that the connecting pipe 63 can support the floating ball 62. At the same time, the air guide pipe 64 is a retractable hose, so that when the support net 4 is relative to the floating plate 61, the connecting pipe 63 can be connected to the air guide pipe 64. When the loading frame 3 moves inside, it can move synchronously with the support net 4 without affecting the movement of the support net 4. The top of the connecting tube 63 is connected to the float 62, and the bottoms of multiple connecting tubes 63 are connected to the air guide tube 64. One end of the air guide tube 64 is connected to the inflation mechanism 7. A one-way valve is installed on the air guide tube 64 near the inflation mechanism 7, and a valve is provided at the other end of the air guide tube 64. After each water bath sterilization, the gas can be discharged by opening the valve, so that the next inflation can be carried out.

[0055] The inflation mechanism 7 includes a sealed shell 71, an air storage part 72, a push plate 73, an air guide cylinder 74 and a propulsion member 75. The sealed shell 71 is fixedly mounted on the outside of the loading frame 3, the air storage part 72 is located inside the sealed shell 71, the push plate 73 is slidably connected to the inside of the sealed shell 71, and one side of the push plate 73 is in contact with the air storage part 72. Two air guide cylinders 74 are provided, and one end of the two air guide cylinders 74 is connected to the sealed shell 71. The propulsion member 75 is located at the air guide cylinder 74, and the two propulsion members 75 are used to push the push plate 73.

[0056] Please refer to Figures 8 and 9 The air storage component 72 includes a high-temperature resistant air storage bag 721. One side of the high-temperature resistant air storage bag 721 is connected to an air outlet pipe 722. The air outlet pipe 722 passes through one side of the loading frame 3. One end of the air outlet pipe 722 located inside the loading frame 3 is connected to the air guide pipe 64. The pushing plate 73 is used to push the high-temperature resistant air storage bag 721.

[0057] The pushing member 75 includes a pushing rod 751, a buffer spring 752 and a pushing piston 753. One end of the pushing rod 751 is fixedly connected to the pushing plate 73, and the other end of the pushing rod 751 passes through the sealed shell 71 and is fixedly connected to the pushing piston 753. The pushing rod 751 is slidingly connected to the sealed shell 71, and the pushing piston 753 is cooperatively connected to the air guide cylinder 74. The buffer spring 752 is sleeved on the outside of the pushing rod 751, one end of the buffer spring 752 is fixedly connected to the outside of the sealed shell 71, and the other end of the buffer spring 752 is fixedly connected to the pushing piston 753.

[0058] A limiting ring 741 is provided on the inner ring of the air guide cylinder 74 . The limiting ring 741 is close to the opening 511 of the air guide cylinder 74 , and is used to limit the pushing piston 753 .

[0059] Specific implementation process: After hot circulating water is introduced into the sterilization tank body, and the hot circulating water is used to soak the bagged items in the multi-layer loading frame 3 inside the sterilization tank body, the temperature inside the sterilization tank rises and the pressure increases. At the same time, as the amount of hot circulating water increases, the air pressure inside the sealed shell 71 is lower than the air pressure inside the sterilization tank body. The external air pressure causes the push piston 753 to move along the air guide cylinder 74. As the push piston 753 moves, it synchronously drives the push plate 73 to move through the push rod 751, and then causes the push plate 73 to move along the inside of the sealed shell 71. When the push plate 73 moves along the sealed shell 71, the push plate 73 synchronously pushes the sterilizer. When the high-temperature air storage bag 721 is pushed, the air pressure value of the one-way valve at the air guide tube 64 reaches the set value, and the valve disc at the one-way valve is pushed open, and the air flows through the air guide tube 64 and enters the connecting tube 63, and then enters the float 62 through the connecting tube 63. At this time, the buoyancy of the float 62 increases, and the buoyancy of the two rows of multiple floats 62 on the support net 4 increases at the same time, and the support net 4 is further driven by the float plate 61 to separate from the filter plate 31 at the bottom of the loading frame 3 until the support net 4 floats in the hot circulating water, so that the multiple bagged items on the support net 4 float in the hot circulating water, further increasing the contact area between the bagged items and the hot circulating water, and ensuring that the bagged items are fully sterilized.

[0060] Example 2

[0061] Please refer to Figures 15 and 16The second embodiment further supplements the connection sleeve 51 of the first embodiment. Specifically, the connection sleeve 51 is provided with an opening 511, and a Velcro 512 and a Velcro 513 are installed on both sides of the opening 511.

[0062] When the connecting sleeve 51 is connected to the connecting rod 52, the Velcro 512 and the Velcro 513 at the opening 511 are bonded to each other, so that the connecting sleeve 51 can be stably wrapped around the outside of the connecting rod 52, so that the connecting sleeve 51 can support the support net 4. At the same time, the setting of this connecting sleeve 51 can also enable the connecting sleeve 51 to be quickly removed from the connecting rod 52.

[0063] Example 3

[0064] See also Figures 7 to 9 The third embodiment further supplements the sealed housing 71 of the first embodiment. Specifically, a circular hole is provided on the top of the sealed housing 71, and a connecting ring 711 with an external thread is installed on the outer side of the circular hole. A sealing cover 712 is threadedly connected to the outer side of the connecting ring 711. A gas nozzle 713 is provided on the high-temperature resistant air storage bag 721 at a position corresponding to the circular hole.

[0065] Therefore, when the high temperature resistant air storage bag 721 is to be inflated, the sealing cover 712 is opened, and the inflation device can inflate the high temperature resistant air storage bag 721 through the air nozzle 713 .

[0066] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0067] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A water bath sterilizer, comprising a sterilizer body (1) and a water storage tank (2) mounted on the top of the outer side of the sterilizer, wherein the water storage tank (2) is used to provide hot water to the sterilizer body (1), and a loading frame (3) is provided in the inner cavity of the sterilizer body (1), wherein the loading frame (3) is used to support bagged articles, and is characterized in that: A filter plate (31) is provided at the bottom of the loading frame (3), and a plurality of filter holes are provided on the filter plate (31); A support net (4) is provided inside the loading frame (3) and above the filter plate (31), and the bagged articles are placed on the support net (4), and a connection mechanism (5) for connecting the support net (4) is provided inside the loading frame (3); The support net (4) is provided with two auxiliary floating mechanisms (6), and the loading frame (3) is provided with an inflation mechanism (7). The inflation mechanism (7) inflates the auxiliary floating mechanisms (6) by changing the air pressure inside the sterilizer body (1), so that the bagged articles on the support net (4) float in the loading frame (3), and the bagged articles are dispersed during water bath sterilization.

2. A water bath sterilizer according to claim 1, characterized in that: A plurality of loading frames (3) are provided, each of the bottoms of the plurality of loading frames (3) is provided with a limiting snap ring (32), and the plurality of loading frames (3) are stacked in sequence from bottom to top inside the sterilizer body (1) via the limiting snap ring (32).

3. A water bath sterilizer according to claim 1, characterized in that: The connecting mechanism (5) comprises a connecting sleeve (51), a connecting rod (52), a connecting block (53) and a supporting clamping mechanism (54); four connecting sleeves (51) are provided, and the four connecting sleeves (51) are respectively fixedly installed around the supporting net (4); the connecting rod (52) slides through the connecting sleeve (51); four connecting blocks (53) are provided, and the four connecting blocks (53) are respectively located at the four corners of the supporting net (4); and one end of two vertically distributed connecting rods (52) is fixedly connected to the connecting block (53); Four supporting clamping mechanisms (54) are provided, and the four supporting clamping mechanisms (54) are respectively fixedly mounted at the four corners of the top of the filter plate (31), and the supporting clamping mechanisms (54) are used to support and limit the connection block (53).

4. A water bath sterilizer according to claim 3, characterized in that: The support clamping mechanism (54) comprises a support tube (541), a clamping rod (542), a clamping block (543), a pushing block (544), a guide rod (545) and a clamping spring (546); the bottom of the support tube (541) is fixedly mounted on the filter plate (31); two clamping interfaces are provided on the support tube (541), and the clamping block (543) slides through the clamping interfaces; the connecting block (53) is slidably sleeved on the outside of the support tube (541), and the connecting block (53) is located at the bottom of the clamping block (543); one end of the two clamping blocks (543) located inside the clamping interfaces is respectively fixedly connected to the two clamping rods (542); one end of the clamping rod (542) away from the clamping block (543) is located at the top opening (511) of the support tube (541) and is fixedly connected to the pushing block (544); The guide rod (545) is fixedly installed inside the support tube (541), and the two clamping rods (542) are respectively slidably sleeved on the outside of the guide rod (545); A plurality of the clamping springs (546) are provided, and both ends of the plurality of clamping springs (546) are respectively fixedly connected to the sides of the two clamping rods (542) that are close to each other.

5. A water bath sterilizer according to claim 1, characterized in that: The auxiliary floating mechanism (6) comprises a floating plate (61), a floating ball (62), a connecting pipe (63) and an air guide pipe (64); a plurality of floating plates (61) are provided, and the plurality of floating plates (61) are distributed in a row on the supporting net (4); a mounting hole is provided at a position of the supporting net (4) corresponding to the floating plate (61), and the floating plate (61) passes through the mounting hole; the connecting pipe (63) passes through the floating plate (61); the top of the connecting pipe (63) is connected to the floating ball (62), and the bottoms of the plurality of connecting pipes (63) are connected to the air guide pipe (64); one end of the air guide pipe (64) is connected to the inflation mechanism (7); a one-way valve is installed on the air guide pipe (64) near the inflation mechanism (7).

6. A water bath sterilizer according to claim 5, characterized in that: The inflation mechanism (7) comprises a sealed shell (71), an air storage member (72), a push plate (73), an air guide cylinder (74) and a push member (75); the sealed shell (71) is fixedly mounted on the outside of the loading frame (3); the air storage member (72) is located inside the sealed shell (71); the push plate (73) is slidably connected inside the sealed shell (71), and one side of the push plate (73) is in contact with the air storage member (72); two air guide cylinders (74) are provided, one end of the two air guide cylinders (74) is connected to the sealed shell (71); the push member (75) is located at the air guide cylinder (74), and the two push members (75) are used to push the push plate (73).

7. A water bath sterilizer according to claim 6, characterized in that: The gas storage member (72) comprises a high temperature resistant gas storage bag (721); one side of the high temperature resistant gas storage bag (721) is connected to an air outlet pipe (722); the air outlet pipe (722) passes through one side of the loading frame (3); one end of the air outlet pipe (722) located inside the loading frame (3) is connected to the air guide pipe (64); and the pushing plate (73) is used to push the high temperature resistant gas storage bag (721).

8. A water bath sterilizer according to claim 6, characterized in that: The pushing member (75) comprises a pushing rod (751), a buffer spring (752) and a pushing piston (753); one end of the pushing rod (751) is fixedly connected to the pushing plate (73), and the other end of the pushing rod (751) passes through the sealing shell (71) and is fixedly connected to the pushing piston (753); the pushing rod (751) is slidably connected to the sealing shell (71), and the pushing piston (753) is cooperatively connected to the air guide cylinder (74); the buffer spring (752) is sleeved on the outside of the pushing rod (751), one end of the buffer spring (752) is fixedly connected to the outside of the sealing shell (71), and the other end of the buffer spring (752) is fixedly connected to the pushing piston (753).

9. A water bath sterilizer according to claim 6, characterized in that: The inner ring of the gas guide cylinder (74) is provided with a limiting ring (741), the limiting ring (741) is close to the opening (511) of the gas guide cylinder (74), and the limiting ring (741) is used to limit the pushing piston (753).

10. A water bath sterilizer according to claim 1, characterized in that: A cover plate (33) is provided on the loading frame (3) located at the uppermost layer of the internal cavity of the sterilizer body (1), and a plurality of through holes are provided on the cover plate (33).

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