Novel high-pressure steam sterilization pot

By introducing a rebound device and a grate tray into the high-pressure steam sterilizer, the height of the grate tray can be flexibly adjusted, solving the problem of inconvenient placement of material baskets when sterilizing small quantities, and improving operational convenience and sterilization efficiency.

CN224113029UActive Publication Date: 2026-04-14PURCELL HIGH -TECH (SHANDONG) BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PURCELL HIGH -TECH (SHANDONG) BIOTECHNOLOGY CO LTD
Filing Date
2025-03-14
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

When sterilizing small quantities, existing large-capacity sterilizers are inconvenient to place material baskets, and empty baskets must be placed in order to ensure the sterilization effect of the upper steam, which makes them inconvenient to use.

Method used

A novel high-pressure steam sterilizer was designed, with a rebound device and a grate plate inside the pot. The height of the grate plate can be changed by the rebound device, allowing for flexible adjustment to place two material baskets or one material basket at a time.

Benefits of technology

This solves the problem of inconvenient material basket placement when sterilizing small quantities, improving operational convenience and sterilization efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a novel high-pressure steam sterilization pot which comprises a pot body and a pot cover, and a pressure seal is arranged between the pot cover and the pot body; a heating coil is mounted at the bottom in the pot body, a water level indicating scale submerging the heating coil is arranged in the pot body, and a material basket is placed in the pot body; a rebounding device is installed at the bottom of the interior of the pot body and provided with a rebounding end, the rebounding end is fixedly connected with a perforated strainer disc, and the material basket is placed on the perforated strainer disc. The rebounding device and the perforated strainer plate are arranged at the bottom of the pot body, the perforated strainer plate acts on the rebounding device, the rebounding device is in a contraction state through one-time downward pressing, the height of the perforated strainer plate is the lowest at the moment, and two material baskets can be placed in the pot for sterilization on a large scale. The rebound device bounces and stretches out through secondary pressing, at the moment, the perforated strainer disc is the highest, the perforated strainer disc can replace an original lower layer material basket, the material basket is directly arranged on the upper layer, and small-amount sterilization with only one material basket is carried out.
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Description

Technical Field

[0001] This utility model relates to the field of sterilizers, and in particular to a novel high-pressure steam sterilizer. Background Technology

[0002] Sterilizers are commonly used equipment in the biochemical field, using 121°C steam to sterilize placed instruments. For economic reasons, users often choose large-capacity sterilizers, which can be used not only for sterilizing plates and 50mL Erlenmeyer flasks, but also for extra-large Erlenmeyer flasks such as 2L, making them very versatile. Currently, common large-capacity sterilizers can stack two material baskets. An angle bracket is fixed at the bottom of the sterilizer to support the lower basket. After placing the lower basket, the upper basket is placed directly on top. Since both baskets are the same size, slightly smaller than the inner diameter of the sterilizer, they can be stacked. However, when sterilizing a small quantity that could be done with just one basket, the sterilizer's depth requires bending over to reach the bottom and place the basket. Furthermore, to achieve the desired sterilization effect with the upper steam, two baskets are still needed: the instruments to be sterilized are placed in the upper basket, while the lower basket is empty, causing inconvenience in use. Utility Model Content

[0003] The purpose of this application is to provide a novel high-pressure steam sterilizer, which aims to solve the problems existing in the prior art.

[0004] This application provides a novel high-pressure steam sterilizer, including a pot body and a pot lid, with a pressure seal between the pot lid and the pot body; a heating coil is installed at the bottom inside the pot body, and a water level indicator scale is provided inside the pot body to submerge the heating coil; a material basket is placed inside the pot body; a rebound device is installed at the bottom inside the pot body, the rebound device has a rebound end, and a grate plate is fixedly connected to the rebound end, with the material basket placed on the grate plate.

[0005] Furthermore, the rebounder includes an elongated housing with a slider slidably connected inside. A rotating rebound track is provided on one side of the slider. One end of a limit rod is hinged to the bottom of the housing, and the other end of the limit rod is slidably connected inside the rebound track. A support rod is fixedly connected to the top of the slider, and the support rod extends out of the housing and is fixedly connected to a connecting piece, which is fixed to the bottom of the grate plate.

[0006] Furthermore, a spring is installed inside the housing below the slider. One end of the spring is fixed to the bottom of the housing, and the other end of the spring is fixed to the slider.

[0007] Furthermore, an auxiliary rod is provided inside the spring. The bottom of the auxiliary rod is fixedly connected to the housing, and the upper end of the auxiliary rod is located in a through hole opened at the bottom of the slider.

[0008] Furthermore, the comb plate is covered with through holes.

[0009] Furthermore, a threaded rod is fixedly connected to the pot lid, a handwheel is fixedly connected to the top of the threaded rod, a threaded sleeve is threadedly connected to the threaded rod, a connecting rod is fixedly connected to the outer wall of the threaded sleeve, and the other end of the connecting rod is rotatably connected to a rotating seat installed on the side of the pot body.

[0010] Furthermore, the lid and the pot body are connected by threads, and a sealing ring is provided between the lid and the pot body.

[0011] The beneficial effects of this invention are as follows: This invention features a rebound device and a grate plate at the bottom of the pot. The grate plate acts on the rebound device; a first downward press causes the rebound device to retract, at which point the grate plate is at its lowest height, allowing two material baskets to be placed inside the pot for large-scale sterilization. A second downward press causes the rebound device to spring back and extend, at which point the grate plate is at its highest height, replacing the original lower material basket and allowing the material basket to be placed directly on the upper layer for small-scale sterilization using only one material basket. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the structure of a comb plate.

[0014] Figure 3 This is a schematic diagram of the internal structure of the bouncer.

[0015] In the picture:

[0016] 1. Pot body; 2. Pot lid; 3. Threaded rod; 4. Handwheel; 5. Threaded sleeve; 6. Connecting rod; 7. Rotary seat; 8. Heating coil; 9. Rebound device; 10. Grate plate; 11. Material basket; 12. Shell; 13. Slider; 14. Rebound track; 15. Concave buffer section; 16. Limiting rod; 17. Support rod; 18. Connecting piece; 19. Spring; 20. Auxiliary rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1The novel high-pressure steam sterilizer shown includes a pot body 1 and a pot lid 2. A threaded rod 3 is fixedly connected to the pot lid 2, and a handwheel 4 is fixedly connected to the top of the threaded rod 3. A threaded sleeve 5 is threadedly connected to the threaded rod 3, and a connecting rod 6 is fixedly connected to the outer wall of the threaded sleeve 5. The other end of the connecting rod 6 is rotatably connected to a rotating seat 7 installed on the side of the pot body 1. Through threaded engagement, the threaded rod 3 can drive the pot lid 2 to move up and down when driven by the handwheel 4. Its function is to open and close the pot lid 2. The pot lid 2 is threadedly connected to the pot body 1, and a sealing ring is provided between the pot lid 2 and the pot body 1.

[0019] For example, when opening, turning the handwheel 4 causes the threaded rod 3 to rotate and rise the lid 2, causing the lid 2 to separate from the pot body 1 by rotating against the thread. The lid 2 continues to rise to a certain height, completely separating from the pot body 1. Then, the connecting rod 6 can be moved to the side via the rotating seat 7 to fully expose the interior of the pot body 1. Therefore, the material basket 11 containing the sterilized equipment can be taken out or placed through the exposed interior of the pot body 1. The lid 2 is then screwed tightly onto the pot body 1, and a sealing ring ensures a tight seal inside the pot body 1.

[0020] A heating coil 8 is installed at the bottom of the interior of the pot body 1. The heating coil 8 heats up when powered on. The pot body 1 has a water level indicator scale that submerges the heating coil 8. During use, clean water is poured directly into the pot body 1 until the water level submerges the heating coil 8 to the indicated level. The water is then heated by the heating coil 8, causing it to boil and vaporize, generating steam. Furthermore, a temperature control device is installed inside the pot body 1 in the same manner as in existing technologies. Since temperature control technology is relatively mature for use in sterilizers, it will not be described in detail in this embodiment.

[0021] A rebounder 9 is installed at the bottom of the interior of the pot body 1. The rebounder 9 has a rebound end, to which a grate plate 10 is fixedly connected. Pressure causes the rebound end to contract and extend, thereby changing the height of the grate plate 10 within the pot body 1. The material basket 11 is placed on the grate plate 10. When the rebounder 9 is in the contracted state, two material baskets 11 can be stacked on the grate plate 10. When the rebounder 9 is in the extended state, one material basket 11 can be placed on the grate plate 10. Figure 2 As shown, the grate plate 10 is covered with through holes for steam to pass through.

[0022] Such as Figure 3 As shown, the bouncer 9 includes an elongated housing 12, within which a slider 13 is slidably connected. A rotating bounce track 14 is formed on one side of the slider 13. The bounce track 14 follows the same trajectory as conventional bouncers 9, featuring multiple inclined sections that force movement in one direction along the track, and a concave buffer section 15 located at the top. To extend the stroke of the bouncer 9, the longitudinal length of the bounce track 14 is increased.

[0023] The bottom of the housing 12 is hinged to one end of a limiting rod 16, and the other end of the limiting rod 16 is rotatably connected to a rotating column. The rotating column is slidably connected within the rebound track 14. When the slider 13 moves up and down within the housing 12, the rotating column at the upper end of the limiting rod 16 can always move in one direction along the rebound track 14. The top of the slider 13 is fixedly connected to a support rod 17, which extends out of the housing 12 and is fixedly connected to a connecting piece 18. The connecting piece 18 is fixed to the bottom of the grate plate 10 by bolts.

[0024] A spring 19 is installed inside the housing 12 below the slider 13. One working end of the spring 19 is fixed to the bottom of the housing 12, and the other working end is fixed to the slider 13. An auxiliary rod 20 is provided inside the spring 19 to stabilize it. The bottom of the auxiliary rod 20 is fixedly connected to the housing 12, and the upper end of the auxiliary rod 20 is located in a through hole at the bottom of the slider 13. When the slider 13 descends, the through hole accommodates the portion of the auxiliary rod 20 that exceeds its length.

[0025] Preferably, three rebounders 9 are installed in a triangular arrangement below the grate plate 10 to make the grate plate 10 more stable. When the grate plate 10 is pressed down, the support rod 17 drives the slider 13 to move downward, thereby realizing the retraction and extension of the rebounders 9. During the first press, the slider 13 slides down and compresses the spring 19. The rotating column on the limiting rod 16 enters the upper concave buffer end from the left rebound track 14. As the pressure disappears, under the elastic force of the spring 19, the rotating column of the limiting rod 16 is limited within the concave buffer section 15, which is the retraction process. During the second press, the slider 13 slides down and compresses the spring 19. The rotating column of the limiting rod 16 leaves the right side of the concave buffer section 15. As the pressure disappears, under the elastic force of the spring 19, the slider 13 rises. The rotating shaft of the limiting rod 16 slides down from the right rebound track 14 and stops at the initial position below the rebound track 14, which is the extension process.

[0026] The height of the grate plate 10 can be changed under the action of the rebound device 9, so that one or two material baskets 11 can be placed in the pot body 1. Therefore, when the number of utensils to be sterilized is small, only one material basket 11 can be placed, and the depth of placement is shallow, making it easy for people to put it in.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects.

Claims

1. A novel high-pressure steam sterilizer, comprising a pot body and a pot lid, wherein a pressure seal is provided between the pot lid and the pot body; a heating coil is installed at the bottom inside the pot body, a water level indicator scale is provided inside the pot body to submerge the heating coil, and a material basket is placed inside the pot body; characterized in that, A rebounder is installed at the bottom of the inside of the pot body. The rebounder has a rebound end, and a grate plate is fixedly connected to the rebound end. The material basket is placed on the grate plate.

2. The novel high-pressure steam sterilizer according to claim 1, characterized in that, The rebound device includes an elongated housing with a slider slidably connected inside. A rotating rebound track is provided on one side of the slider. One end of a limit rod is hinged to the bottom of the housing, and the other end of the limit rod is slidably connected inside the rebound track. A support rod is fixedly connected to the top of the slider, and the support rod extends out of the housing and is fixedly connected to a connecting piece. The connecting piece is fixed to the bottom of the grate plate.

3. The novel high-pressure steam sterilizer according to claim 2, characterized in that, A spring is installed inside the housing below the slider. One end of the spring is fixed to the bottom of the housing, and the other end of the spring is fixed to the slider.

4. The novel high-pressure steam sterilizer according to claim 3, characterized in that, An auxiliary rod is provided inside the spring. The bottom of the auxiliary rod is fixedly connected to the housing, and the upper end of the auxiliary rod is located in a through hole opened at the bottom of the slider.

5. The novel high-pressure steam sterilizer according to claim 1, characterized in that, The comb plate is covered with through holes.

6. The novel high-pressure steam sterilizer according to claim 1, characterized in that, A threaded rod is fixedly connected to the pot lid, a handwheel is fixedly connected to the top of the threaded rod, a threaded sleeve is threadedly connected to the threaded rod, a connecting rod is fixedly connected to the outer wall of the threaded sleeve, and the other end of the connecting rod is rotatably connected to a rotating base installed on the side of the pot body.

7. The novel high-pressure steam sterilizer according to claim 6, characterized in that, The lid and the pot body are connected by threads, and a sealing ring is provided between the lid and the pot body.