A pot door opening and closing mechanism and a sterilization pot

Abstract

The utility model belongs to pressure vessel technical field, concretely relates to a kind of pot door opening and closing mechanism and sterilization pot, including head, cylinder, pot door flange, pot body flange, locking clamp, multiple limit support components and rotary drive component;The utility model simplifies processing technology, reduces manufacturing cost, and can be realized axial location by baffle, to increase contact area, reduce stress concentration, enhance the overall structural stability;Also by adding radially adjustable limit support component, locking clamp obtains the rolling support of accurate adjustment, so as to compensate processing and assembly error, guarantee the smooth and reliable of rotary action, ensure the smooth and stable of pot door opening and closing action.

Description

Technical Field

[0001] This utility model belongs to the field of pressure vessel technology, and relates to a pot door opening and closing mechanism and a sterilizing pot. Background Technology

[0002] An autoclave is a sealed, pressurized heater that uses saturated steam as a heating medium to sterilize products at high temperatures. It is used to heat food sealed in containers. The autoclave has a working chamber inside and an opening at the end of the autoclave. The door is located on the opening and is sealed. The door opening and closing mechanism is one of the important components of the autoclave.

[0003] In the prior art, utility model patent application number CN202421310627.2 discloses a quick-opening mechanism and a sterilizer. This mechanism, when installing the clamp, achieves axial positioning of the clamp by setting a second annular portion with a second groove on the clamp, and a second retaining ring portion with a second protruding tooth on the tank flange, and finally, through the misaligned cooperation of the two, achieves axial positioning of the clamp. Furthermore, the clamp makes rolling contact with the outer surface of the limiting annular portion of the tank flange via rollers to reduce frictional resistance during rotation.

[0004] However, in order to assemble the clamp, the above structure requires the machining of a matching second groove and a second protruding tooth, which increases the machining complexity and assembly accuracy requirements of the parts and raises the production cost. Secondly, the rollers used in the structure are fixed and cannot be adjusted in position, making it difficult to compensate for dimensional errors in the manufacturing and assembly process of the parts as well as wear generated during long-term use. This may lead to problems such as rotation jamming and uneven movement of the mechanism, thus affecting the reliability of the door opening operation. Utility Model Content

[0005] The purpose of this invention is to provide a pot door opening and closing mechanism and a sterilizing pot, which solves the technical problems of complex structure, high manufacturing cost and easy jamming in the existing technology.

[0006] In a first aspect, this utility model discloses a pot door opening and closing mechanism, including a head and a cylinder, and further comprising: A boiler door flange, fixedly fitted to the end of the end cap, includes: First ring; The first ring tooth is located on the outer periphery of the first ring and includes a plurality of first convex teeth evenly spaced along the circumferential direction. A guide slope is provided on one side of the non-opposite end face of the first convex tooth. A pot body flange, fixedly installed at the end of the cylinder, includes: Second ring; The first retaining ring is fixedly sleeved on the outer circumference of the second ring and located at one end of the second ring near the boiler door flange; A locking clamp, rotatably fitted around the outer periphery of the boiler door flange and the boiler body flange, including: Third ring; The second ring tooth is located on the inner circumference of the third ring and includes a plurality of second protruding teeth evenly spaced along the circumference, and a groove is formed between adjacent second protruding teeth. The groove corresponds to and is adapted to the first protruding teeth. The second retaining ring is fixedly sleeved on the inner circumference of the third ring and is located on the side of the first retaining ring away from the boiler door flange; Multiple limiting support components are evenly distributed circumferentially on the lower half of the outer periphery of the cylinder, and each limiting support component includes: The support is fixedly installed on the outer periphery of the cylinder; The support shaft is movably mounted on the support and its position can be adjusted radially along the locking clamp; A roller is rotatably sleeved on the outside of the support shaft, and a limiting ring groove is provided on the outer periphery of the roller. The limiting ring groove is adapted to the outer periphery of the third ring and forms a rolling fit. A rotary drive assembly is disposed between the cylinder and the locking clamp, and is used to drive the locking clamp to rotate circumferentially.

[0007] This application eliminates the need to machine matching teeth and grooves on the boiler flange and locking clamp, thus simplifying the processing technology and reducing manufacturing costs. Axial limiting can be achieved through the retaining ring, thereby increasing the contact area, reducing stress concentration, and enhancing the overall structural stability. Furthermore, by adding a radially adjustable limiting support component, the locking clamp can obtain precisely adjustable rolling support, which can compensate for processing and assembly errors, ensure smooth and reliable rotation, and ensure smooth and stable opening and closing of the boiler door.

[0008] Based on the above technical solution, the solution of this application can be further improved as follows: Preferably, the end face of the second ring facing the boiler door flange is provided with a receiving ring groove, and a sealing gasket is installed in the receiving ring groove; by adopting this solution, the reliability of the seal is effectively improved, the position is stable after assembly, a stable and reliable sealing interface is formed, and the sealing gasket is prevented from being damaged by excessive compression, thus extending its service life.

[0009] Preferably, the bottom of the receiving annular groove is provided with a positioning annular groove, the cross-section of which gradually expands outward toward the side away from the boiler door flange. One end of the sealing gasket is provided with an annular protrusion, which is adapted to and embedded in the positioning annular groove to axially limit the sealing gasket. This solution improves the installation stability of the sealing gasket, effectively limits the axial and radial displacement of the sealing gasket, prevents loosening and falling off, and ensures that the sealing gasket is always in the predetermined position.

[0010] Preferably, an air inlet channel is provided on the end face of the second ring opposite to the boiler door flange, and the air inlet channel is connected to the positioning ring groove; by adopting this solution, active and controllable pressurization of the sealing gasket is realized, thereby actively increasing the sealing interface pressure according to the working conditions, and thus significantly enhancing the sealing adaptability and reliability.

[0011] Preferably, the pot body flange includes: A connecting ring is coaxially fixed on the end face of the second ring away from the pot door flange and coaxially connected to the end of the cylinder. The inner diameter of the pot flange is coaxial and consistent with the inner diameter of the cylinder, forming a smooth and continuous inner wall surface. This solution simplifies the manufacturing process, reduces processing difficulty, and forms a smooth and continuous inner wall surface at the connection between the two, thereby eliminating internal steps and gaps, facilitating the smooth passage of materials, and avoiding residue and cleaning dead corners.

[0012] Preferably, the end faces of the first ring and the first ring teeth facing the pot body flange are flush with each other, and the end faces of the second ring and the first retaining ring facing the pot door flange are flush with each other. By adopting this solution, the end of the end cap and the sealing end face of the pot door flange are kept at an axial distance, ensuring that the sealing end face is not affected by the welding or processing deformation of the end cap, thereby ensuring the flatness and flatness of the mating surface and improving the sealing reliability.

[0013] Preferably, the end faces of the first ring and the first ring teeth facing the pot body flange are flush with each other, and the end faces of the second ring and the first retaining ring facing the pot door flange are flush with each other; by adopting this solution, the first ring teeth and the first retaining ring can also maintain a tight fit, which increases the overall contact area and enhances the sealing effect.

[0014] Preferably, the support comprises: Two side plates are respectively provided on both sides of the roller along the axial direction. Each side plate is provided with an adjustment groove along the radial direction of the locking clamp. The two ends of the support shaft are respectively in sliding fit with one of the adjustment grooves. Two bolts pass radially through both ends of the support shaft and form a threaded connection with the support shaft, with their ends abutting against the bottom of the adjacent adjusting groove; The connecting base plate is fixedly connected to the two side plates on the side away from the third ring on both sides; Multiple L-shaped vertical plates are spaced circumferentially on the side of the connecting base plate away from the third ring and are fixedly connected to the outer periphery of the cylinder. This solution achieves a stable and easy-to-operate adjustable support, which can continuously and accurately adjust the position of the rollers, ensuring uniform and smooth rotation support. It also has high rigidity, good self-locking properties, and guarantees long-term stability after adjustment, improving reliability and maintenance convenience, and reducing manufacturing costs.

[0015] Preferably, the rotary drive assembly includes: The rack is arc-shaped and is disposed on the outer circumferential surface of the cylinder; The gear meshes with the rack; The rotating shaft has one end fixedly connected to the gear coaxially, and the other end rotatably connected to the outer circumference of the third ring; The drive rod is fixedly connected at one end to the outer circumference of the gear. This design allows operators to easily drive the locking clamp to rotate circumferentially. It has a simple structure, is easy to operate, and achieves time-saving and labor-saving effects through the lever principle, resulting in good practical application performance.

[0016] Secondly, this utility model discloses a sterilization pot, including the above-mentioned pot door opening and closing mechanism.

[0017] Through the above technical solution, this utility model achieves the following beneficial effects: 1. This application eliminates the need to machine matching teeth and grooves on the pot flange and locking clamp for the assembly of the locking clamp, thereby simplifying the processing technology, reducing manufacturing costs, and achieving axial limiting through the retaining ring, thereby increasing the contact area, reducing stress concentration, and enhancing the overall structural stability; furthermore, by adding a radially adjustable limiting support component, the locking clamp obtains precisely adjustable rolling support, which can compensate for processing and assembly errors, ensure smooth and reliable rotation, and ensure smooth and stable opening and closing of the pot door; 2. This application opens an air inlet channel on the end face of the second ring away from the boiler door flange and connects the air inlet channel with the positioning ring groove. This allows external pressurizing equipment to inject high-pressure gas into the positioning ring groove through this channel, thereby realizing active and controllable pressurization of the sealing gasket. As a result, the sealing interface pressure can be actively increased according to the working conditions, thus significantly enhancing the sealing reliability and adaptability. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a side cross-sectional view of the pot door opening and closing mechanism according to a specific embodiment of the present utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 Enlarged view of point B in the middle; Figure 4 for Figure 1 The front view of the boiler door opening and closing mechanism shown; Figure 5 for Figure 4 Enlarged view of point D in the middle; Figure 6 for Figure 1 A schematic diagram of the rotary drive assembly in the pot door opening and closing mechanism shown. Figure 7 for Figure 1 A schematic diagram of the boiler door flange in the boiler door opening and closing mechanism shown; Figure 8 for Figure 1 The diagram shows the structure of the locking clamp in the boiler door opening and closing mechanism. Figure 9 for Figure 1 The side sectional view of the boiler body flange in the boiler door opening and closing mechanism shown. Figure 10 for Figure 9 Enlarged view of point C in the middle; Explanation of reference numerals in the attached figures: 1. End cap; 2. Cylinder body; 3. Boiler door flange; 31. First ring; 311. Fitting ring groove; 32. First ring tooth; 321. First protruding tooth; 3211. Guide slope; 4. Pot body flange; 41. Second ring; 411. Receiving ring groove; 412. Positioning ring groove; 413. Air inlet channel; 42. First retaining ring; 43. Connecting ring; 5. Locking clamp; 51. Third ring; 52. Second ring tooth; 521. Second convex tooth; 5A. Slot; 53. Second retaining ring; 6. Limiting support assembly; 61. Support; 611. Side plate; 6111. Adjusting slide; 612. Bolt; 613. Connecting base plate; 614. L-shaped upright plate; 62. Support shaft; 63. Roller; 631. Limiting ring groove; 7. Rotary drive assembly; 71. Rack; 72. Gear; 73. Rotating shaft; 74. Drive rod; 8. Sealing gasket; 81. Annular protrusion. Detailed Implementation

[0020] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0021] The terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as “first” or “second” may explicitly or implicitly include one or more of the stated features.

[0022] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0024] Example: like Figures 1 to 4 As shown in the figure, this application discloses a pot door opening and closing mechanism for realizing fast and reliable opening and closing between the pot door and the pot body. Its structure includes: a head 1, a cylinder 2, a pot door flange 3, a pot body flange 4, a locking clamp 5, multiple limit support components 6, and a rotary drive component 7.

[0025] like Figures 2 to 4 and Figure 7As shown, the pot door flange 3 is fixedly fitted onto the end of the end cap 1, specifically including: a first ring 31 and a first ring tooth 32; wherein, the first ring 31 is the structural base, used to provide the foundation for installation and load bearing; the first ring tooth 32 is provided on the outer periphery of the first ring 31, including a plurality of first protruding teeth 321 evenly spaced along the circumference, the number of which is preferably sixteen, but can also be other numbers, without specific limitation; a guide slope 3211 is provided on the non-aligning end face of the first protruding tooth 321, used to convert the circumferential thrust into the axial compressive force, thereby driving the pot door flange 3 to press against the pot body flange 4.

[0026] like Figures 1 to 3 As shown, the pot body flange 4 is fixedly installed at the end of the cylinder 2, including: a second ring 41 and a first retaining ring 42; wherein, the second ring 41 is the structural base, used to provide the foundation for installation and bearing; the first retaining ring 42 is fixedly sleeved on the outer periphery of the second ring 41 and located at one end of the second ring 41 near the pot door flange 3, used to form an axial release constraint on the locking clamp 5.

[0027] like Figures 1 to 3 and Figure 8 As shown, the locking clamp 5 is rotatably sleeved on the outer periphery of the pot door flange 3 and the pot body flange 4, and includes: a third ring 51, a second ring tooth 52, and a second retaining ring 53; wherein, the third ring 51 is the transmission body, used to transmit the driving torque to other components; the second ring tooth 52 is located on the inner periphery of the third ring 51, including a plurality of second protruding teeth 521 evenly spaced along the circumference, used to push the guide inclined surface 3211, and a groove 5A is formed between adjacent second protruding teeth 521, the groove 5A corresponding to and fitting with the first protruding teeth 321, used to allow the first protruding teeth 321 to pass through; the second retaining ring 53 is fixedly sleeved on the inner periphery of the third ring 51 and located on the side of the first retaining ring 42 away from the pot door flange 3, used to cooperate with the first retaining ring 42 to jointly form an axial constraint on the locking clamp 5, preventing it from axially dislodging.

[0028] like Figure 1 , Figures 3 to 5 As shown, multiple limiting support components 6 are evenly distributed circumferentially on the lower half of the outer periphery of the cylinder 2. They are used to evenly support the lower half of the locking clamp 5 and bear its weight, and to change sliding friction into rolling friction, making rotation easier.

[0029] like Figure 3 and Figure 5As shown, each limiting support assembly 6 includes: a support 61, a support shaft 62, and a roller 63; wherein, the support 61 is fixedly installed on the outer periphery of the cylinder 2; the support shaft 62 is movably installed on the support 61 and can be adjusted in position along the radial direction of the locking clamp 5, so that during installation and debugging, the contact pressure and gap between each roller 63 and the outer surface of the locking clamp 5 can be accurately adjusted, completely compensating for part machining errors and assembly errors, ensuring that all rollers 63 are evenly stressed, thereby completely avoiding jamming caused by uneven support; the roller 63 is rotatably sleeved on the outside of the support shaft 62, and the outer periphery of the roller 63 is provided with a limiting ring groove 631, which is adapted to the outer periphery of the third ring 51 and forms a rolling fit, playing an axial limiting and guiding role, preventing the locking clamp 5 from axially moving or derailing during rotation, and ensuring stable operation.

[0030] like Figure 4 and Figure 6 As shown, the rotary drive assembly 7 is located between the cylinder 2 and the locking clamp 5, and is used to drive the locking clamp 5 to rotate circumferentially.

[0031] The installation process of the locking clamp 5 in the above technical solution is as follows: First, slide the locking clamp 5 into the end of the cylinder 2; Secondly, install the pot flange 4 at the end of the cylinder 2; Finally, move the locking clamp 5 axially so that the second retaining ring 53 on its inner side fits against the end face of the first retaining ring 42 on the pot flange 4, thus completing the initial positioning and installation of the locking clamp 5. The installation process of the locking clamp 5 is significantly simplified compared to the existing technology. The entire process is achieved by simply moving the axial movement and engaging with the retaining ring. There is no need to process any complex corresponding teeth and grooves on the mating surfaces of the pot flange 4 and the locking clamp 5, which simplifies the process and reduces manufacturing costs.

[0032] The closing and locking process of the above technical solution is as follows: First, push the pot door towards the pot body, so that the pot door flange 3 is close to the pot body flange 4. Then, drive the locking clamp 5 to rotate through the rotary drive assembly 7 to ensure that the inner groove 5A and the first protrusion 321 on the pot door flange 3 are aligned in the circumferential direction. In this position, the pot door flange 3 can be easily fitted into the locking clamp 5 along the axial direction, so as to make end face contact with the pot body flange 4 and enter the locking state. Secondly, after the boiler door flange 3 is in place, the locking clamp 5 is driven by the rotary drive assembly 7 to rotate slightly in the circumferential direction. The locking clamp 5 rotates smoothly and with low resistance under the support of the roller 63 of the limit support assembly 6, and the limit ring groove 631 of the roller 63 ensures that the locking clamp 5 does not move axially during rotation, thus ensuring stable operation. Secondly, as the locking clamp 5 rotates, its inner second protrusion 521 gradually screws into the outer side of the guide slope 3211 on the first protrusion 321. The rotation continues, causing the second protrusion 521 to adhere tightly to and slide along the guide slope 3211. During this process, the second protrusion 521 applies a circumferential thrust to the guide slope 3211. The slope design of the guide slope 3211 decomposes the circumferential thrust into an axial compressive force pointing towards the inside of the pot, which acts on the first protrusion 321 and the entire pot door. On flange 3; at the same time, locking clamp 5 itself is subjected to an axial reaction force in the opposite direction (attempting to disengage to the left). This force is applied to the first retaining ring 42 of the pot flange 4 through the second retaining ring 53. Since the pot flange 4 is fixedly installed at the end of the cylinder 2, the pot flange 4 will apply an equal rightward force to locking clamp 5. This makes the forces on both sides of locking clamp 5 cancel each other out, thereby avoiding the application of force to the limiting ring groove 631, thus ensuring the rolling fit effect and making rotation less strenuous. Finally, when the locking clamp 5 is rotated to the predetermined position, the second protruding tooth 521 reaches the maximum stroke depth on the guide slope 3211. The huge axial force generated by the slope conversion pulls the pot door flange 3 tightly towards the pot body flange 4, so that the two are fully compressed, thereby forming a reliable seal.

[0033] This invention eliminates the need for machining matching teeth and grooves on the pot flange 4 and locking clamp 5 for the assembly of the locking clamp 5, thus simplifying the processing technology and reducing manufacturing costs. Furthermore, axial limiting can be achieved through the retaining ring, thereby increasing the contact area, reducing stress concentration, and enhancing the overall structural stability. In addition, by adding a radially adjustable limiting support component 6, the locking clamp 5 obtains precisely adjustable rolling support, which can compensate for processing and assembly errors, ensure smooth and reliable rotation, and ensure smooth and stable opening and closing of the pot door.

[0034] In some embodiments, such as Figure 2 , Figure 3 and Figure 10 As shown, the second ring 41 has a receiving ring groove 411 on the end face facing the boiler door flange 3, which is used to provide precise positioning and receiving space. A sealing gasket 8 is installed in the receiving ring groove 411.

[0035] The above design effectively improves the reliability of the seal and provides positioning and accommodating space for the sealing gasket 8, ensuring its stable position after assembly and uniform compression, thereby forming a stable and reliable sealing interface, effectively preventing leakage, avoiding damage to the sealing gasket 8 due to excessive compression, and extending its service life.

[0036] Based on the above embodiments, such as Figure 2 , Figure 3 and Figure 10As shown, the bottom of the receiving annular groove 411 is provided with a positioning annular groove 412. The cross-section of the positioning annular groove 412 gradually expands outward toward the side away from the boiler door flange 3. One end of the sealing gasket 8 is provided with an annular protrusion 81. The annular protrusion 81 is adapted to the positioning annular groove 412 and embedded therein, and is used to axially limit the sealing gasket 8.

[0037] For example, the cross-section of the positioning ring groove 412 is an isosceles trapezoid, and its two inclined surfaces can form a uniform and symmetrical contact force, thereby effectively avoiding stress concentration and forming a more durable and reliable limiting.

[0038] The above design improves the installation stability of the sealing gasket 8, effectively limits the axial and radial displacement of the sealing gasket 8, prevents loosening and falling off, ensures that the sealing gasket 8 is always in the predetermined position, and enhances the durability of the seal and the ease of maintenance of the overall structure.

[0039] In this embodiment, as Figure 2 and Figure 10 As shown, an air inlet channel 413 is provided on the end face of the second ring 41 away from the pot door flange 3, and the air inlet channel 413 is connected to the positioning ring groove 412.

[0040] Through the above design, external pressurizing equipment can inject high-pressure gas into the positioning ring groove 412 through this channel, thereby realizing active and controllable pressurization of the sealing gasket 8. This allows the sealing interface pressure to be actively increased according to the working conditions, thus significantly enhancing the sealing reliability and adaptability.

[0041] In some embodiments, such as Figure 1 , Figure 3 and Figure 10 As shown, the pot body flange 4 includes: The connecting ring 43 is coaxially fixed on the end face of the second ring 41 away from the pot door flange 3 and coaxially connected with the end of the cylinder 2; wherein, the inner diameter of the pot body flange 4 is coaxial and consistent with the inner diameter of the cylinder 2, so as to form a smooth and continuous inner wall surface.

[0042] With the above design, there is no need to open a complicated assembly groove on the flange 4 of the pot body to match the cylinder 2, which simplifies the manufacturing process, reduces the processing difficulty, and forms a smooth and continuous inner wall surface at the connection between the two, thereby eliminating internal steps and gaps, facilitating the smooth passage of materials, and avoiding residue and cleaning dead corners.

[0043] In some embodiments, such as Figure 2 As shown, the end face of the first ring 31 opposite to the flange 4 of the pot body has a fitting ring groove 311. The fitting ring groove 311 extends radially inward to communicate with the inner hole of the first ring 31. The end of the end cap 1 is fixedly embedded in the fitting ring groove 311.

[0044] Through the above design, the end of the head 1 and the sealing end face of the boiler door flange 3 are kept at an axial distance, ensuring that the sealing end face is not affected by the welding or processing deformation of the head 1, thereby ensuring the flatness and flatness of the mating surface and improving the sealing reliability.

[0045] In some embodiments, such as Figure 2 As shown, to improve the sealing effect, the end faces of the first ring 31 and the first ring tooth 32 facing the pot body flange 4 are flush with each other, and the end faces of the second ring 41 and the first retaining ring 42 facing the pot door flange 3 are flush with each other. The above design ensures that the first ring tooth 32 and the first retaining ring 42 can maintain a tight fit, increasing the overall contact area and enhancing the sealing effect.

[0046] In some embodiments, such as Figure 2 and Figure 5 As shown, the support 61 includes: two side plates 611, two bolts 612, a connecting base plate 613, and multiple L-shaped vertical plates 614, specifically configured as follows: Two side plates 611 are respectively located on both sides of the roller 63 to bear the load transmitted by the roller 63 and distribute it to the entire support 61. Each side plate 611 has an adjustment groove 6111 along the radial direction of the locking clamp 5 to provide a precise radial movement track. The two ends of the support shaft 62 are respectively in sliding fit with an adjustment groove 6111 to ensure that the support shaft 62 always maintains a parallel relationship with the axis of the locking clamp 5 during the adjustment process and prevents deflection. Two bolts 612 pass through both ends of the support shaft 62 radially and form a threaded connection with the support shaft 62. The ends of the bolts 612 abut against the bottom of the adjacent adjusting groove 6111. The bolts 612 are used to reliably support the support shaft 62 in the adjusted position by means of the preload of the bolts 612. The two sides of the connecting base plate 613 are fixedly connected to the two side plates 611 on the side away from the third ring 51, respectively, to form a rigid U-shaped structure, which greatly enhances the overall rigidity and stability of the support 61 and provides a stable mounting surface for the L-shaped upright plate 614. Multiple L-shaped vertical plates 614 are spaced circumferentially on the side of the connecting base plate 613 away from the third ring 51 and are fixedly connected to the outer periphery of the cylinder 2 to reduce concentrated stress and provide stable support.

[0047] The position adjustment of the support shaft 62 is achieved through the bolts 612 at both ends. The specific process is as follows: use a tool to rotate the bolts 612. The threaded engagement between the bolts 612 and the support shaft 62 converts the rotational motion into the linear movement of the support shaft 62. Thus, the two ends of the support shaft 62 slide precisely radially along the adjusting grooves 6111, thereby driving the rollers 63 to move closer to or away from the locking clamps 5. After adjusting to the desired position, the threaded locking force between the bolts 612 and the support shaft 62 can firmly fix the support shaft 62, thereby completing the adjustment and locking of the support position. The operation is simple and can achieve precise fine-tuning.

[0048] The above design achieves a stable and easy-to-operate adjustable support, which can continuously and precisely adjust the position of the roller 63, ensuring the uniformity and smoothness of the rotation support. It also has high rigidity, good self-locking properties, and guarantees long-term stability after adjustment, improving reliability and ease of maintenance, while keeping manufacturing costs low.

[0049] In some embodiments, such as Figure 6 As shown, the rotary drive assembly 7 includes: a rack 71, a gear 72, a rotary shaft 73, and a drive rod 74, with the following specific configuration: The rack 71 is arc-shaped and is located on the outer circumference of the cylinder 2; the gear 72 meshes with the rack 71; one end of the rotating shaft 73 is fixedly connected to the gear 72 coaxially, and the other end is rotatably connected to the outer circumference of the third ring 51; one end of the drive rod 74 is fixedly connected to the outer circumference of the gear 72.

[0050] When driven, the operator moves the drive rod 74, which drives the gear 72 to rotate. The gear 72 rolls along the rack 71, and the gear 72 drives the third ring 51 to rotate circumferentially through the rotating shaft 73.

[0051] The above design allows operators to easily drive the locking clamp 5 to rotate circumferentially. Its structure is simple and easy to operate. Through the lever principle, it achieves the effect of saving time and effort, and has good practical application results.

[0052] This application also discloses a sterilizing pot, including the above-mentioned pot door opening and closing mechanism.

[0053] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A boiler door opening and closing mechanism, comprising a head (1) and a cylinder (2), characterized in that, include: The boiler door flange (3), which is fixedly fitted to the end of the head (1), includes: First ring (31); The first ring tooth (32) is located on the outer periphery of the first ring (31) and includes a plurality of first protruding teeth (321) evenly spaced along the circumference. A guide slope (3211) is provided on one side of the non-opposite end face of the first protruding tooth (321). A pot body flange (4), fixedly installed at the end of the cylinder (2), includes: Second ring (41); The first retaining ring (42) is fixedly sleeved on the outer periphery of the second ring (41) and located at one end of the second ring (41) near the pot door flange (3); The locking clamp (5) is rotatably fitted around the outer periphery of the pot door flange (3) and the pot body flange (4), including: Third ring (51); The second ring tooth (52) is located on the inner circumference of the third ring (51), and includes a plurality of second protruding teeth (521) evenly spaced along the circumference, and a groove (5A) is formed between adjacent second protruding teeth (521), the groove (5A) corresponding to and fitting the first protruding tooth (321) one by one. The second retaining ring (53) is fixedly sleeved on the inner circumference of the third ring (51) and located on the side of the first retaining ring (42) away from the pot door flange (3); Multiple limiting support components (6) are evenly distributed circumferentially on the lower half of the outer periphery of the cylinder (2), and each limiting support component (6) includes: Support (61) is fixedly installed on the outer periphery of the cylinder (2); The support shaft (62) is movably mounted on the support (61) and its position can be adjusted radially along the locking clamp (5); The roller (63) is rotatably sleeved on the support shaft (62), and the outer periphery of the roller (63) is provided with a limiting ring groove (631), which is adapted to the outer periphery of the third ring (51) and forms a rolling fit; A rotary drive assembly (7) is located between the cylinder (2) and the locking clamp (5) for driving the locking clamp (5) to rotate circumferentially.

2. The boiler door opening and closing mechanism according to claim 1, characterized in that, The second ring (41) has a receiving ring groove (411) on the end face facing the pot door flange (3), and a sealing gasket (8) is installed in the receiving ring groove (411).

3. The boiler door opening and closing mechanism according to claim 2, characterized in that, The bottom of the receiving annular groove (411) is provided with a positioning annular groove (412). The cross-section of the positioning annular groove (412) gradually expands outward toward the side away from the pot door flange (3). One end of the sealing gasket (8) is provided with an annular protrusion (81). The annular protrusion (81) is adapted to the positioning annular groove (412) and embedded therein, and is used to axially limit the sealing gasket (8).

4. The boiler door opening and closing mechanism according to claim 3, characterized in that, The second ring (41) has an air inlet channel (413) on the end face away from the pot door flange (3), and the air inlet channel (413) is connected to the positioning ring groove (412).

5. The boiler door opening and closing mechanism according to claim 1, characterized in that, The pot body flange (4) includes: The connecting ring (43) is coaxially fixed on the end face of the second ring (41) away from the pot door flange (3) and coaxially connected to the end of the cylinder (2); The inner diameter of the pot flange (4) is coaxial and consistent with the inner diameter of the cylinder (2) to form a smooth and continuous inner wall surface.

6. The boiler door opening and closing mechanism according to claim 1, characterized in that, The first ring (31) has a fitting ring groove (311) on the end face away from the pot flange (4). The fitting ring groove (311) extends radially inward to communicate with the inner hole of the first ring (31). The end of the end cap (1) is fixedly embedded in the fitting ring groove (311).

7. The boiler door opening and closing mechanism according to claim 1, characterized in that, The end faces of the first ring (31) and the first ring tooth (32) facing the pot body flange (4) are flush with each other, and the end faces of the second ring (41) and the first retaining ring (42) facing the pot door flange (3) are flush with each other.

8. The boiler door opening and closing mechanism according to claim 1, characterized in that, The support (61) includes: Two side plates (611) are respectively located on both sides of the axial direction of the roller (63). Each side plate (611) has an adjustment groove (6111) along the radial direction of the locking clamp (5). The two ends of the support shaft (62) are respectively in sliding fit with one of the adjustment grooves (6111). Two bolts (612) pass through both ends of the support shaft (62) radially and form a threaded connection with the support shaft (62), and their ends abut against the bottom of the adjacent adjusting groove (6111); The connecting base plate (613) is fixedly connected to the two side plates (611) on the side away from the third ring (51) on both sides respectively; Multiple L-shaped vertical plates (614) are arranged circumferentially at intervals on the side of the connecting base plate (613) away from the third ring (51) and are fixedly connected to the outer periphery of the cylinder (2).

9. The boiler door opening and closing mechanism according to claim 1, characterized in that, The rotary drive assembly (7) includes: The rack (71) is arc-shaped and is disposed on the outer circumferential surface of the cylinder (2); The gear (72) meshes with the rack (71); The rotating shaft (73) is fixedly connected to the gear (72) on one end and rotatably connected to the outer circumference of the third ring (51) on the other end. One end of the drive rod (74) is fixedly connected to the outer periphery of the gear (72).

10. A sterilization pot, characterized in that, Includes the boiler door opening and closing mechanism as described in any one of claims 1 to 9.

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