Dynamic sealing structure of sterilization and disinfection equipment

Abstract

The utility model relates to the technical field of sterilization and disinfection equipment, in particular to a dynamic sealing structure of sterilization and disinfection equipment, which is mounted on a driving body and seals the shaft end of the driving body. Comprising a main body piece which is connected with a driving body and sleeves a shaft end of the driving body; the outer sealing piece is sleeved outside the main body piece and is connected with the main body piece; wherein an inner sealing piece is sealed between the main body piece and the shaft end of the driving body, and an outer sealing piece is sealed between the outer sealing piece and the main body piece. According to the utility model, the sealing capability at the shaft end of the driving body can be ensured when the driving device executes actions under the state that the pressure container bears positive pressure and negative pressure; the multi-stage seal at the shaft end isolates the internal and external environments of the sterilization equipment, so that the sealing problem of the internal and external environments of the pressure container is ensured, and the stability of the internal environment and the safety of biological hazardous waste leakage during sterilization are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sterilization and disinfection equipment, in particular to a dynamic sealing structure of sterilization and disinfection equipment. Background Art

[0002] Biohazardous waste, primarily originating from hospitals, nursing homes, clinics, laboratories, and research centers, includes both solid and liquid biological waste. This waste contains large quantities of bacteria, viruses, and other hazardous substances. If improperly handled, it can spread infection and pose serious health risks. Currently, biohazardous waste management primarily involves centralized collection and storage, followed by chemical disinfection and incineration.

[0003] Sterilization equipment is currently widely used for disinfection and sterilization. These sterilization chambers must operate under both positive and negative pressure to prevent leakage of the internal ambient pressure and hazardous biowaste. Therefore, effective sealing of drive components connected to the sterilization chamber, such as the shaft end connections of cylinders, is crucial. However, existing sealing structures, such as sealed bearings, have limited functionality and insufficient sealing capacity, failing to meet these requirements.

[0004] Therefore, in order to further optimize the connection sealing performance of existing cylinders and other driving parts, we propose a dynamic sealing structure for sterilization and disinfection equipment. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art such as single function and insufficient sealing ability, and to propose a dynamic sealing structure for sterilization and disinfection equipment.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A dynamic sealing structure for a sterilization and disinfection device is designed, wherein the dynamic sealing structure is installed on a driving body and seals the shaft end of the driving body;

[0008] It includes a main body connected to the driving body and sleeved on the shaft end thereof;

[0009] and an outer sealing member sleeved on the outside of the main member and connected thereto;

[0010] Wherein, an inner sealing member is sealed between the main body and the shaft end of the driving body, and an outer sealing member is sealed between the outer sealing member and the main body.

[0011] Furthermore, a front pressing block and a rear pressing block are respectively provided at both ends of the main body, and the front pressing block and the rear pressing block are both connected to the main body via fasteners.

[0012] Furthermore, a step position is provided on the end surface of the main body close to the driving body, the rear pressure block is placed in the step position, and the outer side surface is flush with the rear side surface of the main body.

[0013] Furthermore, a shaft sealing position is provided in the inner hole of the main body, a shaft seal is placed in the shaft sealing position, and the rear pressure block abuts against the side end of the shaft seal.

[0014] Furthermore, an end seal is embedded inside the front pressure block, and the end seal contacts and seals the shaft end of the driving body.

[0015] Furthermore, the inner sealing component includes at least one inner sealing ring embedded in the main body, and the inner sealing ring contacts and seals the axial end of the driving body.

[0016] Furthermore, the outer sealing component is at least one outer sealing ring embedded in the outer sealing component, and the outer sealing ring contacts and seals with the outer side surface of the main body.

[0017] Furthermore, the main body has a stop surface, the outer sealing member contacts the stop surface, and the main body and the outer sealing member are connected via a locking member.

[0018] Furthermore, a surface seal is provided between the stop surface and the outer seal, and the surface seal is used to seal the contact surface between the stop surface and the outer seal.

[0019] Furthermore, the driving body is connected with a penetration piece along its axial direction, and the penetration piece is fastened to the main body.

[0020] The utility model proposes a dynamic sealing structure for sterilization and disinfection equipment, which has the beneficial effect that: the utility model can solve the sealing ability of the shaft end of the pressure vessel when the driving body is in the state of being subjected to positive pressure and negative pressure and the dynamic device is performing an action. The multi-stage seal at the shaft end isolates the internal and external environments of the sterilization equipment, ensuring the sealing problem of the internal and external environments of the pressure vessel, thereby improving the stability of the internal environment during sterilization and the safety of leakage of hazardous biological waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 It is a cross-sectional view of the utility model;

[0023] Figure 3 It is a schematic diagram of the explosion structure of the utility model.

[0024] In the figure: 1. driving body; 11. through-piece; 2. main body; 21. step position; 22. shaft seal position; 23. shaft seal; 24. stop surface; 25. locking member; 26. face seal; 3. outer seal; 4. inner seal; 5. outer seal; 6. front pressure block; 61. end seal; 7. rear pressure block; 8. fastener. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Reference Figure 1-3 This is an embodiment of the present invention, which discloses a dynamic sealing structure of a sterilization and disinfection device. The dynamic sealing structure is installed on a driving body 1 and seals the shaft end of the driving body 1. In this embodiment, the driving body 1 is a cylinder as an example. The dynamic sealing structure is used to seal the telescopic movement of the shaft end of the cylinder to ensure its sealing ability. Specifically, the dynamic sealing structure in this embodiment includes a main body 2 connected to the driving body 1 and sleeved on the shaft end thereof;

[0027] and an outer sealing member 3 sleeved on the outside of the main member 2 and connected thereto;

[0028] Among them, an inner seal 4 is sealed between the main body 2 and the axial end of the driving body 1, and an outer seal 5 is sealed between the outer seal 3 and the main body 2. Specifically, the main body 2 described in this embodiment is a flange structure, and the outer seal 3 is a sleeve, which is sleeved on the outside of the main body 2.

[0029] In some embodiments, in the present invention, a front pressure block 6 and a rear pressure block 7 are respectively provided at both ends of the main body 2, and the front pressure block 6 and the rear pressure block 7 are connected to the main body 2 through fasteners 8. In this embodiment, the design of the front pressure block 6 and the rear pressure block 7 is adopted to improve the sealing ability of the front end and the rear end of the main body 2 respectively.

[0030] It should be pointed out that the front and back described in this embodiment are based on the extension direction of the shaft end of the driving body 1. In this embodiment, the proximal end of the shaft rod close to the driving body 1 is the rear, and the distal end is the front.

[0031] On the basis of the above embodiment, in this embodiment, a step position 21 is provided on the end face of the main body 2 close to the driving body 1, and the rear pressure block 7 is placed in the step position 21, and the outer side surface is flush with the rear side surface of the main body 2. This flush design is adopted to ensure the connection stability between the main body 2 and the driving body 1, that is, since the end faces of the main body 2 and the rear pressure block 7 are flush, the two can be stably fastened to the end face of the driving body 1 during installation.

[0032] Furthermore, a shaft sealing position 22 is also provided in the inner hole of the main body 2 in this embodiment, and a shaft seal 23 is placed in the shaft sealing position 22. The rear pressure block 7 is in contact with the side end of the shaft seal 23. Preferably, the shaft seal 23 described in this embodiment can adopt a sealing ring design to ensure the sealing ability between the main body 2 and the shaft end, and the rear pressure block 7 is used as a stop to improve the convenience of assembly.

[0033] In addition, in this embodiment, an end seal 61 is embedded on the inner side of the front pressure block 6, and the end seal 61 contacts and seals the axial end of the driving body 1, wherein the end seal 61 can also be designed as a sealing ring. The sealing ring described in this embodiment can be set to a circular sealing ring or a square sealing ring. The circular and square are the cross-sectional shapes of any part of the sealing ring. The form or number of the structural sealing ring depends on the specific application and design requirements. This design method is a conventional means for technical personnel in the relevant field, and will not be elaborated here. Through the design of the end seal 61, the sealing ability between the main body 2 and the axial end can be further optimized.

[0034] In some embodiments, the inner seal 4 in the present invention includes at least one inner seal ring embedded in the main body 2, and the inner seal ring contacts and seals the axial end of the driving body 1. As mentioned above, the inner seal ring in this embodiment can also be set as a circular seal ring or a square seal ring. The shape and quantity used are within the protection scope of this solution and are not limited here.

[0035] Similarly, the outer seal 5 in this embodiment is at least one outer seal ring embedded in the outer seal 3, and the outer seal ring contacts and seals with the outer side surface of the main body 2. It should be noted that the outer seal ring in this embodiment is sealed in the axial direction of the main body 2 and the outer seal 3. In order to further enhance the sealing between the two, a sealing structure perpendicular to the axial direction, that is, a radial direction, is also provided in this solution, which will be described in detail later and will not be elaborated here.

[0036] In some embodiments, since the main body 2 in this solution adopts a flange structure design, the main body 2 has a stop surface 24, and the outer sealing member 3 is in contact with the stop surface 24. That is to say, the outer sealing member 3 in this embodiment is sleeved on a part of the main body 2, and the main body 2 and the outer sealing member 3 are connected by a locking member 25. Preferably, the locking member 25 described in this embodiment is also set as a bolt.

[0037] The radial sealing structure between the main body 2 and the outer seal 3 is described in detail below. Specifically, in this embodiment, a face seal 26 is further provided between the stop surface 24 and the outer seal 3. The face seal 26 is used to seal the contact surface between the stop surface 24 and the outer seal 3. Preferably, the face seal 26 described in this embodiment is also configured as a sealing ring, which is provided between the stop surface 24 and the outer seal 3 to form a seal between the planes of the main body 2 and the outer seal 3. In conjunction with the design of at least one outer seal ring, the axial and radial sealing between the main body 2 and the outer seal 3 can be achieved, thereby ensuring the sealing between the two.

[0038] It should be noted that, in this embodiment, the driving body 1 is connected with a through-piece 11 along its axial direction, and the through-piece 11 is connected and fastened to the main body 2. Preferably, the through-piece 11 in this embodiment is a bolt, which passes through the driving body 1 and is connected and fixed to the above-mentioned stop surface 24 with a nut. That is to say, in this embodiment, the entire dynamic sealing structure is detachably connected to the driving body 1. This type of design can greatly improve the convenience of assembly, disassembly and maintenance, and optimize the applicability of the structure.

[0039] In summary, the dynamic sealing structure in the present invention can meet the support and guiding functions of the driving body 1 after being installed on the sterilization chamber. At the same time, the inner seal 4 is used to seal between the main body 2 and the shaft end, and the outer seal 5 is used to seal between the main body 2 and the outer seal 3. Therefore, with the help of the design of the inner seal 4 and the outer seal 5, a multi-stage seal is formed to isolate the internal and external environments of the sterilization equipment. The multi-stage sealing barrier provides a relatively stable sealing environment for the sealing area.

[0040] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dynamic sealing structure for a sterilization and disinfection device, the dynamic sealing structure being mounted on a driving body (1) and sealing the shaft end of the driving body (1), characterized in that ； It comprises a main body (2) connected to the driving body (1) and sleeved on the shaft end thereof; and an outer sealing member (3) sleeved on the outside of the main member (2) and connected thereto; An inner sealing member (4) is sealed between the main body (2) and the shaft end of the driving body (1), and an outer sealing member (5) is sealed between the outer sealing member (3) and the main body (2).

2. The dynamic sealing structure of the sterilization and disinfection equipment according to claim 1, characterized in that: A front pressing block (6) and a rear pressing block (7) are respectively provided at both ends of the main body (2), and the front pressing block (6) and the rear pressing block (7) are both connected to the main body (2) via fasteners (8).

3. The dynamic sealing structure of the sterilization and disinfection equipment according to claim 2, characterized in that: A step position (21) is provided on the end surface of the main body (2) close to the driving body (1), and the rear pressure block (7) is placed in the step position (21), with the outer side surface flush with the rear side surface of the main body (2).

4. The dynamic sealing structure of the sterilization and disinfection equipment according to claim 3, characterized in that: A shaft sealing position (22) is also provided in the inner hole of the main body (2), a shaft seal (23) is placed in the shaft sealing position (22), and the rear pressure block (7) abuts against the side end of the shaft seal (23).

5. The dynamic sealing structure of the sterilization and disinfection equipment according to claim 2, characterized in that: An end seal (61) is embedded inside the front pressing block (6), and the end seal (61) contacts and seals the shaft end of the driving body (1).

6. A dynamic sealing structure of a sterilization and disinfection equipment according to any one of claims 1 to 5, characterized in that: The inner sealing member (4) comprises at least one inner sealing ring embedded in the main body (2), and the inner sealing ring contacts and seals the shaft end of the driving body (1).

7. A dynamic sealing structure for sterilization and disinfection equipment according to any one of claims 1 to 5, characterized in that: The outer sealing member (5) is at least one outer sealing ring embedded in the outer sealing member (3), and the outer sealing ring contacts and seals the outer side surface of the main body (2).

8. The dynamic sealing structure of the sterilization and disinfection equipment according to claim 7, characterized in that: The main body (2) has a stop surface (24), the outer sealing member (3) contacts the stop surface (24), and the main body (2) and the outer sealing member (3) are connected via a locking member (25).

9. The dynamic sealing structure of the sterilization and disinfection equipment according to claim 8, characterized in that: A surface seal (26) is further provided between the stop surface (24) and the outer seal (3), and the surface seal (26) is used to seal the contact surface between the stop surface (24) and the outer seal (3).

10. A dynamic sealing structure of a sterilization and disinfection equipment according to any one of claims 1 to 5, characterized in that: The driving body (1) is connected to a penetration piece (11) along its axial direction, and the penetration piece (11) is connected and fastened to the main body (2).

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