Sealing structure of high-temperature sterilization boiler

Abstract

The utility model relates to the field of high-temperature sterilization boiler equipment, and discloses a sealing structure of a high-temperature sterilization boiler, which comprises a box body, a sealing opening formed in the outer wall of the top of the box body and a sealing cover mounted above the sealing opening, an O-shaped sealing ring is adhered to the outer wall of the bottom of the sealing cover, and an arc-shaped sealing surface is arranged on the outer wall of the bottom of the sealing opening. The outer wall of the sealing cover is fixedly connected with a sealing ring, the outer wall of the top of the box body is fixedly connected with an annular clamping seat, the inner walls of the two sides of the annular clamping seat are provided with tight grooves, and the outer walls of the two sides of the sealing ring are provided with hollow rubber rings. A first sealing structure is formed in the inner cavity of the box body, a second sealing structure is formed through mutual matching of the sealing ring, the annular clamping seat, the hollow rubber ring and the tight groove, the double sealing structures can effectively prevent leakage of high-temperature steam, and the sterilization efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of high-temperature sterilization boiler equipment, and particularly to a sealing structure of a high-temperature sterilization boiler. Background Art

[0002] High-temperature sterilization boilers mainly use high-temperature and high-pressure steam to sterilize items. Inside the equipment, high-temperature steam is generated by heating water or other media. The steam penetrates the cell walls of microorganisms, thereby inactivating bacteria, viruses and other microorganisms therein, achieving the sterilization effect;

[0003] The boiler sealing structure of existing high-temperature sterilization equipment is a split type. Workers need to first buckle the top cover on the top of the boiler, and then fix it by screwing multiple bayonets to the top cover respectively. Such a structure is not only cumbersome to operate, but also has poor sealing effect and is prone to leakage, thus affecting the sterilization work. Therefore, a sealing structure of a high-temperature sterilization boiler is proposed to solve the above problems. Utility Model Content

[0004] In order to solve the problems that the existing sealing structure is not only cumbersome to operate, but also has poor sealing effect and is prone to leakage, affecting the sterilization work, this application provides a sealing structure of a high-temperature sterilization boiler.

[0005] The sealing structure of a high-temperature sterilization boiler provided by this application adopts the following technical solutions:

[0006] A sealing structure of a high-temperature sterilization boiler includes a box body, a sealing port arranged on the outer wall of the top of the box body, and a sealing cover installed above the sealing port. An O-ring is adhesively bonded to the outer wall of the bottom of the sealing cover. An arc-shaped sealing surface is arranged on the outer wall of the bottom of the sealing port. The outer wall of the O-ring is closely attached to the inner wall of the arc-shaped sealing surface. A sealing ring is fixedly connected to the outer wall of the sealing cover. A circular clamping seat is fixedly connected to the outer wall of the top of the box body. The sealing port is located inside the circular clamping seat. The sealing ring is clamped with the circular clamping seat. Tightening grooves are formed on the inner walls of both sides of the circular clamping seat. Hollow rubber rings are arranged on the outer walls of both sides of the sealing ring. The two hollow rubber rings are clamped with the two tightening grooves. The outer diameter of the hollow rubber ring is larger than the inner diameter of the tightening groove. A locking mechanism is installed on the outer wall of the top of the box body.

[0007] Preferably, the locking mechanism includes a first limit post and a second limit post fixedly connected to the outer wall of the top of the box body. An arc-shaped fixing plate is movably connected to the outer wall of the second limit post. A threaded ring is arranged on the outer wall of the middle section of the arc-shaped fixing plate. A threaded rod is threadedly connected to the inner wall of the threaded ring. The bottom end of the threaded rod is rotationally connected to the inner wall of the middle section of the top of the sealing cover through a connecting block. A handle is fixedly connected to the top end of the threaded rod.

[0008] Preferably, a clamping groove is formed at one end of the arc-shaped fixing plate away from the second limiting post, and the arc-shaped fixing plate is clamped with the first limiting post through the clamping groove.

[0009] Preferably, a sterilization barrel is installed on the inner wall of the box body, and the sterilization barrel is adaptively inserted into the sealing port.

[0010] Preferably, a heating cavity is arranged below the sterilization barrel of the box body, a placing mesh plate is fixedly connected to the inner wall above the heating cavity of the box body, and the sterilization barrel is placed on the outer wall of the top of the placing mesh plate.

[0011] Preferably, an observation window is arranged on the outer wall of the box body.

[0012] In summary, the present application includes the following beneficial technical effects:

[0013] 1. By providing the sealing port, the sealing cover, the O-ring seal and the arc-shaped sealing surface, a first sealing structure is formed for the inner cavity of the box body. Through the mutual cooperation of the sealing ring, the annular clamping seat, the hollow rubber ring and the tight groove, a second sealing structure is formed. The double-sealing structure can effectively prevent the leakage of high-temperature steam and improve the sterilization efficiency;

[0014] 2. By providing the locking mechanism, the sealing cover can be firmly locked on the sealing port, so that the components between the two sealing structures are closely fitted to ensure the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an overall schematic diagram of an embodiment of the application;

[0016] Figure 2 is a side cross-sectional view of an embodiment of the application;

[0017] Figure 3 is Figure 2 a magnified schematic view of the structure at A in

[0018] Figure 4 is a partial cross-sectional view of an embodiment of the application;

[0019] Figure 5 is a partial cross-sectional view of the sealing cover in an embodiment of the application.

[0020] Description of the reference numerals: 1, box body; 2, sealing port; 3, sealing cover; 4, sealing ring; 5, annular clamping seat; 6, hollow rubber ring; 7, tight groove; 8, O-ring seal; 9, arc-shaped sealing surface; 10, first limiting post; 11, second limiting post; 12, arc-shaped fixing plate; 13, threaded ring; 14, threaded rod; 15, handle; 16, connecting block; 17, clamping groove; 18, heating cavity; 19, placing mesh plate; 20, sterilization barrel; 21, observation window. DETAILED DESCRIPTION OF THE INVENTION

[0021] The following will further elaborate on this application in conjunction with the attached Figures 1-5 drawings for a more detailed description.

[0022] The embodiment of this application discloses a sealing structure for a high-temperature sterilization boiler. Referring to Figures 1-5 , a sealing structure for a high-temperature sterilization boiler includes a box body 1, a sealing port 2 provided on the outer wall of the top of the box body 1, and a sealing cover 3 installed above the sealing port 2. An O-ring 8 is adhesively bonded to the outer wall of the bottom of the sealing cover 3, and an arc-shaped sealing surface 9 is provided on the outer wall of the bottom of the sealing port 2. The outer wall of the O-ring 8 is in close fit with the inner wall of the arc-shaped sealing surface 9 to form a first sealing structure. When the O-ring 8 is in contact with the arc-shaped sealing surface 9 and is compressed to a certain extent during the assembly process, it will deform to fill the gap, thereby forming a tight sealing interface. This sealing method effectively prevents the leakage of liquid or gas;

[0023] A sealing ring 4 is fixedly connected to the outer wall of the sealing cover 3, and an annular clamping seat 5 is fixedly connected to the outer wall of the top of the box body 1. The sealing port 2 is located inside the annular clamping seat 5. The sealing ring 4 is engaged with the annular clamping seat 5. Tightening grooves 7 are provided on the inner walls of both sides of the annular clamping seat 5, and hollow rubber rings 6 are provided on the outer walls of both sides of the sealing ring 4. The two hollow rubber rings 6 are engaged with the two tightening grooves 7. The outer diameter of the hollow rubber ring 6 is larger than the inner diameter of the tightening groove 7 to form a second sealing structure. When the sealing ring 4 is engaged with the annular clamping seat 5, the sealing ring 4 drives the hollow rubber ring 6 to be squeezed into the two tightening grooves 7. Since the outer diameter of the hollow rubber ring 6 is larger than the inner diameter of the tightening groove 7, the hollow rubber ring 6 will be subjected to the squeezing force of the inner wall of the tightening groove 7. At this time, the surface tension of the hollow rubber ring 6 causes the outer wall of the hollow rubber ring 6 to closely fit with the inner wall of the tightening groove 7, forming a tighter sealing layer. Both the hollow rubber ring 6 and the O-ring 8 can be made of fluororubber material that is resistant to heat and high temperature;

[0024] A locking mechanism is installed on the outer wall of the top of the box body 1. The locking mechanism includes a first limit post 10 and a second limit post 11 fixedly connected to the outer wall of the top of the box body 1. An arc-shaped fixing plate 12 is movably connected to the outer wall of the second limit post 11. A threaded ring 13 is provided on the outer wall of the middle section of the arc-shaped fixing plate 12. A threaded rod 14 is threadedly connected to the inner wall of the threaded ring 13. The bottom end of the threaded rod 14 is rotatably connected to the inner wall of the middle section of the top of the sealing cover 3 through a connecting block 16, and a handle 15 is fixedly connected to the top end of the threaded rod 14.

[0025] A clamping groove 17 is provided at one end of the arc-shaped fixing plate 12 away from the second limit post 11. The arc-shaped fixing plate 12 is engaged with the first limit post 10 through the clamping groove 17. It is convenient to engage or separate the arc-shaped fixing plate 12 from the first limit post 10 through the clamping groove 17, facilitating the disassembly and assembly of the sealing cover 3.

[0026] The inner wall of the box body 1 is installed with a sterilization barrel 20. The sterilization barrel 20 is adaptively inserted into the sealing port 2. The sterilization barrel 20 is inserted into the box body 1 through the sealing port 2, and items to be sterilized can be placed inside the sterilization barrel 20.

[0027] Below the sterilization barrel 20, the box body 1 is provided with a heating cavity 18. The inner wall above the heating cavity 18 of the box body 1 is fixedly connected with a placement mesh plate 19. The sterilization barrel 20 is placed on the top outer wall of the placement mesh plate 19. Water can be added into the box body 1 through the sealing port 2, and the water flows into the heating cavity 18 for heating, thereby forming high-temperature steam for sterilizing the objects inside the sterilization barrel 20.

[0028] An observation window 21 is arranged on the outer wall of the box body 1, which is convenient for observing the sterilization situation inside the box body 1 through the observation window 21.

[0029] The implementation principle of the sealing structure of a high-temperature sterilization boiler in an embodiment of the present application is as follows: during use, rotate the arc-shaped fixing plate 12 to make the arc-shaped fixing plate 12 rotate around the second limiting column 11. The arc-shaped fixing plate 12 drives the sealing cover 3 to move and rotate through the threaded rod 14, align the sealing cover 3 with the sealing port 2, and make the second limiting column 11 at the end of the arc-shaped fixing plate 12 be clamped with the first limiting column 10. Then rotate the handle 15, and the handle 15 drives the threaded rod 14 to threadedly rotate on the inner surface of the threaded ring 13, and then drives the arc-shaped fixing plate 12 to move up and down on the outer wall of the threaded rod 14 through the threaded ring 13. When the threaded rod 14 drives the arc-shaped fixing plate 12 to rise through the threaded ring 13, the arc-shaped fixing plate 12 is limited by the first limiting column 10 and the second limiting column 11 and cannot rise. As the threaded rod 14 continues to rotate, the arc-shaped fixing plate 12 will provide a downward pressure, and the arc-shaped fixing plate 12 presses the sealing cover 3 tightly through the bottom end of the threaded rod 14, and the sealing cover 3 is firmly and closely attached to the sealing port 2;

[0030] It should be noted that the thread between the threaded rod 14 and the threaded ring 13 can achieve self-locking. The self-locking condition of the thread depends on the helix angle of the thread, the friction coefficient, and the load received. The self-locking condition of the thread can be calculated by the following formula: self-locking condition = friction coefficient × tan (helix angle) ≥ 1. When this condition is met, the threaded connection is self-locking. The above contents are all prior arts, and in actual applications, the corresponding self-locking angle can be set according to the friction coefficient of the material, which will not be elaborated here. Therefore, the threaded rod 14 can lock the position of the arc-shaped fixing plate 12 through the threaded ring 13, so that the arc-shaped fixing plate 12 can continuously press the sealing cover 3 through the threaded rod 14;

[0031] When the sealing cover 3 and the sealing port 2 are under the pressure of the locking mechanism, the O-ring 8 and the arc-shaped sealing surface 9 will fit closely. When the O-ring 8 is compressed to a certain extent during the assembly of the sealing cover 3, the O-ring 8 will deform to fill the gap, thus forming a tight sealing interface, effectively preventing the leakage of liquid or gas and forming the first sealing structure;

[0032] At the same time, the sealing ring 4 is clamped with the annular socket 5. The sealing ring 4 drives the hollow rubber ring 6 to be extruded and clamped into the two tight slots 7. Since the outer diameter of the hollow rubber ring 6 is larger than the inner diameter of the tight slot 7, the hollow rubber ring 6 will be subjected to the extrusion force of the inner wall of the tight slot 7. At this time, the surface tension of the hollow rubber ring 6 causes the outer wall of the hollow rubber ring 6 to fit closely with the inner wall of the tight slot 7, forming a tighter sealing layer and forming the second sealing structure;

[0033] In summary, under the double-layer sealing structure, the sealing effect of the inner cavity of the box body 1 can be ensured, effectively preventing the leakage of high-temperature gas inside the box body 1.

[0034] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0035] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0036] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0037] The above are all the preferred embodiments of this application and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A sealing structure of a high-temperature sterilization boiler, comprising a box body (1), a sealing port (2) arranged on the outer wall of the top of the box body (1), and a sealing cover (3) installed above the sealing port (2), characterized in that: An O-ring seal (8) is adhesively attached to the outer wall of the bottom of the sealing cover (3). An arc-shaped sealing surface (9) is provided on the outer wall of the bottom of the sealing port (2). The outer wall of the O-ring seal (8) is in close fit with the inner wall of the arc-shaped sealing surface (9). A sealing ring (4) is fixedly connected to the outer wall of the sealing cover (3). An annular clamping seat (5) is fixedly connected to the outer wall of the top of the box body (1). The sealing port (2) is located inside the annular clamping seat (5). The sealing ring (4) is clamped with the annular clamping seat (5). Tightening grooves (7) are formed in the inner walls on both sides of the annular clamping seat (5). Hollow rubber rings (6) are provided on the outer walls on both sides of the sealing ring (4). The two hollow rubber rings (6) are clamped with the two tightening grooves (7). The outer diameter of the hollow rubber ring (6) is larger than the inner diameter of the tightening groove (7). A locking mechanism is installed on the outer wall of the top of the box body (1).

2. The sealing structure of a high-temperature sterilization boiler according to claim 1, wherein: The locking mechanism includes a first limit post (10) and a second limit post (11) fixedly connected to the outer wall of the top of the box body (1). An arc-shaped fixing plate (12) is movably connected to the outer wall of the second limit post (11). A threaded ring (13) is provided on the outer wall of the middle section of the arc-shaped fixing plate (12). A threaded rod (14) is threadedly connected to the inner wall of the threaded ring (13). The bottom end of the threaded rod (14) is rotatably connected to the inner wall of the middle section of the top of the sealing cover (3) through a connecting block (16). A handle (15) is fixedly connected to the top end of the threaded rod (14).

3. The sealing structure of a high-temperature sterilization boiler according to claim 2, characterized in that: A clamping groove (17) is formed at one end of the arc-shaped fixing plate (12) away from the second limit post (11). The arc-shaped fixing plate (12) is clamped with the first limit post (10) through the clamping groove (17).

4. The sealing structure of a high-temperature sterilization boiler according to claim 1, characterized in that: A sterilization barrel (20) is installed on the inner wall of the box body (1). The sterilization barrel (20) is adaptively inserted into the sealing port (2).

5. The sealing structure of a high-temperature sterilization boiler according to claim 4, characterized in that: A heating cavity (18) is provided below the sterilization barrel (20) in the box body (1). A placement mesh plate (19) is fixedly connected to the inner wall above the heating cavity (18) in the box body (1). The sterilization barrel (20) is placed on the outer wall of the top of the placement mesh plate (19).

6. The sealing structure of a high-temperature sterilization boiler according to claim 1, characterized in that: An observation window (21) is provided on the outer wall of the box body (1).

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