Sterilization chamber cover for a medical waste sterilization apparatus

Abstract

The application belongs to the technical field of medical waste treatment, and particularly relates to a sterilization cabin cover of a medical waste sterilization device; the cover comprises a cover body, an annular seat, a turnover frame and a cylinder, a plurality of locking rods and a rotating disc are arranged on the cover body, the rotating disc drives the locking rods to move radially synchronously through an eccentric arc-shaped hole; the locking rod is composed of a first connecting part, a second connecting part and an elastic structure, and a push rod is arranged at the end of the locking rod; a driving motor is installed on the turnover frame, and the rotating disc is driven to rotate and self-lock through a worm gear; a sliding groove with a positioning pressing block is arranged on the annular seat, the positioning pressing block has a wedge-shaped block and an extrusion block at one end, the cover body is provided with an inclined rail, the push rod pushes the extrusion block to make the positioning pressing block slide along the sliding groove, the inclined groove cooperates with the inclined rail to apply downward pressure on the cover body, and the positioning groove cooperates with the positioning rail to realize center calibration; the cover has uniform locking, elastic self-adapting capacity and automatic center correction, and the sealing reliability is significantly improved.

Description

Technical Field

[0001] This invention relates to the field of medical waste treatment technology, and more particularly to the disinfection chamber cover of a medical waste disinfection device. Background Technology

[0002] Medical waste contains a large number of pathogens and harmful substances, and must be treated with high temperature, high pressure or chemical disinfection before it can be safely disposed of. The disinfection chamber is the core component of medical waste disinfection equipment, and the airtightness, ease of operation and locking reliability of its chamber cover directly affect the disinfection effect and operational safety.

[0003] Existing disinfection chamber covers mostly use manual bolt locking or single cylinder pressing methods, which result in uneven distribution of locking force. The medical disinfection chamber is under high pressure during use, posing a risk of gas leakage. In addition, after long-term use, the cover is prone to defects such as uneven wear of the sealing ring and center misalignment, which affect the pressure maintenance and disinfection effect inside the disinfection chamber. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a disinfection chamber cover for a medical waste disinfection device, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned technical objectives, the specific technical solution of the present invention is as follows: The disinfection chamber cover of the medical waste disinfection equipment proposed in this invention includes a cover body, an annular seat fixedly installed on the chamber body, a flipping frame fixedly connected to the cover body, and a cylinder for pushing the flipping frame to rotate. One end of the cylinder is hinged to the chamber body. Multiple locking rods are evenly distributed along the circumference of the cover body. The cover body is provided with a guide seat that slides with the locking rods. A locking block that cooperates with the locking rods is fixedly connected to the annular seat. The locking block is provided with a locking hole. A device for driving the locking rods to move is rotatably connected to the center of the cover body. A rotating disk; the locking rod includes a first connecting part, a second connecting part, and an elastic structure disposed between the two. The first connecting part is fixedly connected to a conical locking head, and the second connecting part is fixedly connected to a push rod; the annular seat is provided with multiple arc-shaped sliding grooves, and a positioning block is slidably connected in the sliding groove. An elastic element is fixedly connected between the positioning block and the sliding groove. The positioning block is used to press the cover and center it; one side of the positioning block is provided with an inclined groove, and a positioning groove is provided in the inclined groove. The circumference of the cover is provided with an inclined rail that is slidably connected to the inclined groove, and a positioning rail that cooperates with the positioning groove is provided on the inclined rail.

[0006] As a preferred technical solution of the present invention, a sealing ring is fixedly connected to the lower surface of the cover, a sealing ring is provided on the circumference of the sealing ring to seal with the inner wall of the cabin, and a sealing gasket is provided around the sealing ring to seal with the end face of the cabin.

[0007] As a preferred embodiment of the present invention, one end of the positioning block is provided with a wedge-shaped block, and the inclined surface of the wedge-shaped block is slidably connected to an extrusion block.

[0008] As a preferred embodiment of the present invention, the rotating disk is provided with a plurality of eccentrically arranged arc-shaped holes, the locking rod is provided with a shaft that slides with the arc-shaped holes, and the shaft is provided with a limiting nut.

[0009] As a preferred embodiment of the present invention, a drive motor is fixedly installed on the tilting frame, a worm gear is fixedly connected to the output shaft of the drive motor, and a worm wheel is fixedly connected to the rotating disk coaxially.

[0010] As a preferred embodiment of the present invention, the elastic structure includes a slide rod and a spring. One end of the slide rod is fixedly connected to the first connecting part, and the other end is slidably inserted into the second connecting part. The spring is sleeved on the slide rod and abuts against the first connecting part and the second connecting part.

[0011] As a preferred embodiment of the present invention, the sealing ring and the lower surface of the cover are integrally formed or fixedly connected, the sealing ring is an O-ring rubber sealing ring, and the sealing gasket is a high-temperature resistant silicone gasket.

[0012] As a preferred embodiment of the present invention, the end of the push rod is provided with a limiting rod, and the extrusion block is provided with a limiting hole that cooperates with the limiting rod.

[0013] As a preferred embodiment of the present invention, the tilting frame is hinged to a fixed frame, the fixed frame is fixedly installed on the cabin body, and the piston rod of the cylinder is hinged to the tilting frame.

[0014] The beneficial effects of this invention are as follows: This invention utilizes a push rod to drive a positioning block. On one hand, the inclined surfaces of the inclined groove and the inclined rail apply downward pressure to the cover, ensuring uniform compression between the sealing gasket and the end face of the chamber. On the other hand, the engagement of the positioning groove and the positioning rail achieves automatic center alignment of the cover, ensuring uniform gap between the sealing ring on the sealing ring and the inner wall of the chamber, and consistent circumferential compression. The combined effect of these two factors forms a double-sealing structure, significantly improving the airtightness and long-term stability of the disinfection chamber. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 for Figure 1 A frontal view diagram.

[0017] Figure 3 This is a schematic diagram of the structure of the cover proposed in this invention.

[0018] Figure 4 This is a front view schematic diagram of the cover body proposed in this invention.

[0019] Figure 5 This is a schematic diagram of the locking rod proposed in this invention.

[0020] Figure 6 This is a schematic diagram of the annular seat proposed in this invention.

[0021] Figure 7 This is a schematic diagram of the positioning block proposed in this invention.

[0022] Figure 8 for Figure 3 A magnified view of a portion of point A in the middle.

[0023] The corresponding names of the reference numerals in the figure are as follows: 1. Cover; 101. Guide seat; 102. Sealing ring; 103. Sealing ring; 104. Sealing gasket; 105. Inclined rail; 106. Positioning rail; 2. Cabin; 3. Tilting frame; 301. Fixing frame; 4. Annular seat; 41. Slide groove; 42. Positioning pressure block; 421. Wedge block; 422. Extrusion block; 423. Limiting hole; 424. Inclined groove; 425. 426. Positioning groove; 43. Elastic element; 44. Locking block; 5. Locking hole; 5. Locking rod; 501. Locking head; 502. First connecting part; 503. Second connecting part; 504. Elastic structure; 505. Push rod; 506. Limiting rod; 507. Shaft; 508. Limiting nut; 6. Rotary disk; 601. Arc-shaped hole; 602. Worm gear; 7. Cylinder; 8. Drive motor; 9. Worm. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] like Figures 1 to 8 As shown in the figure, this embodiment discloses a disinfection chamber cover for a medical waste disinfection device. The cover includes a cover body 1, an annular seat 4 fixedly installed on the chamber body 2, a flipping frame 3 fixedly connected to the cover body 1, and a cylinder 7 for driving the flipping frame 3 to rotate. One end of the cylinder 7 is installed on the chamber body 2 through a hinge seat, and the end of its piston rod is hinged to the middle or end of the flipping frame 3, thereby driving the flipping frame 3 to rotate around the hinge axis on the fixed frame 301, realizing the automatic opening and closing of the cover body 1.

[0026] The cover 1 is provided with a transparent observation port, which allows the operator to observe the internal condition of the disinfection chamber in real time. There are 6 to 8 locking rods 5 evenly distributed around the circumference of the cover 1. Each locking rod 5 corresponds to a guide seat 101 fixed on the cover 1. The locking rod 5 can slide radially within the guide seat 101. A locking block 43 corresponding to each locking rod 5 is fixedly connected to the annular seat 4. The locking block 43 is provided with a locking hole 44.

[0027] A rotating disk 6 is rotatably connected to the center of the cover 1. The rotating disk 6 has the same number of arc-shaped holes 601 as the locking rods 5. Each arc-shaped hole 601 is eccentrically arranged relative to the center of the rotating disk 6 (i.e., the distance from each point of the arc-shaped hole to the center gradually changes along the circumference). Each locking rod 5 is fixed with a vertically upward shaft 507. The shaft 507 passes through the corresponding arc-shaped hole 601 and a limit nut 508 is screwed on its upper end, so that the shaft 507 can slide along the arc-shaped hole 601. When the rotating disk 6 rotates, the arc-shaped hole 601 pushes the shaft 507, thereby driving the locking rod 5 to move radially along the guide seat 101, so that the locking head 501 inserts into or exits the locking hole 44.

[0028] To drive the rotating disk 6 to rotate, a drive motor 8 is fixedly installed on the tilting frame 3. A worm gear 9 is fixedly connected to the output shaft of the motor. A worm wheel 602 is coaxially fixed on the lower surface or edge of the rotating disk 6. The worm gear 9 meshes with the worm wheel 602. Since the worm wheel mechanism has a self-locking characteristic, the rotating disk 6 is locked when the motor stops, ensuring a stable and reliable locking state.

[0029] See Figure 3 The locking rod 5 includes a first connecting part 502, a second connecting part 503, and an elastic structure 504 disposed between the two. The outer end of the first connecting part 502 is fixedly connected to a tapered locking head 501 (to facilitate the insertion into the locking hole 44). The inner end of the second connecting part 503 (the end near the center of the cover) is fixedly connected to a push rod 505. The elastic structure 504 includes a slide rod and a spring: one end of the slide rod is fixedly connected to the first connecting part 502, and the other end slides into the guide hole of the second connecting part 503. The spring is sleeved on the slide rod and pressed between the first connecting part 502 and the second connecting part 503. This elastic structure enables the locking rod 5 to have axial elastic compensation capability during the locking process, avoiding sudden changes in locking force due to mechanical errors or wear.

[0030] See Figures 4-5The annular seat 4 has multiple arc-shaped grooves 41. A positioning block 42 is slidably installed within each groove 41. An elastic element 426 is fixedly connected between the positioning block 42 and the groove 41 to reset the positioning block 42. The elastic element 426 is a spring. One end of the positioning block 42 has a wedge-shaped block 421. A pressing block 422 is slidably connected to the inclined surface of the wedge-shaped block 421. The side of the positioning block 42 facing the cover 1 has an inclined groove 424. The top surface of the inclined groove 424 also has... The positioning groove 425 corresponds to the inclined rail 105 fixed on the circumferential surface of the cover 1, which slides with the inclined groove 424. The inclined rail 105 is provided with a positioning rail 106 corresponding to the positioning groove 425. In the initial state, the positioning pressure block 42 is located at the starting end of the slide groove 41. When the locking rod 5 moves in the locking direction, the push rod 505 on the second connecting part 503 contacts and pushes the pressing block 422. The pressing block 422 slides along the inclined surface of the wedge block 421, thereby pushing the positioning pressure block 42 along the slide groove 41. At this time, the inclined groove 424 slides relative to the inclined rail 105. Since the inclined groove 424 is inclined, a downward pressure (i.e., the component force pressing against the end face of the cabin 2) will be generated on the cover 1 during the sliding process. At the same time, the positioning groove 425 and the positioning rail 106 engage with each other when they approach the end point, realizing the automatic calibration of the center position of the cover 1.

[0031] Preferably, the push rod 505 has a limiting rod 506 at its end, and the extrusion block 422 has a limiting hole 423 that is inserted and cooperates with the limiting rod 506. When the push rod 505 pushes the extrusion block 422, the limiting rod 506 slides in the limiting hole 423.

[0032] See Figure 6 A sealing ring 102 is fixedly connected to the lower surface of the cover 1, and a sealing ring 103 is embedded in the outer circumferential surface of the sealing ring 102 to form a first seal with the inner wall of the compartment 2. A sealing gasket 104 is provided on the periphery of the sealing ring 102 (i.e., near the edge of the lower surface of the cover 1). When the cover 1 is closed, the sealing gasket 104 is pressed against the end face of the compartment 2 to form a second seal. The downward pressure applied by the positioning block 42 to the cover 1 ensures that the sealing gasket 104 is subjected to uniform force. At the same time, the centering function ensures that the gap between the sealing ring 102 and the inner wall of the chamber 2 is uniform, thereby making the compression of the sealing ring 103 consistent and achieving a double reliable seal. In this embodiment, the positioning block 42 slides in an arc within the groove 41 of the annular seat 4. The inclined groove 424 and the inclined surface of the inclined rail 105 cooperate to generate a downward component force to press the sealing gasket 104. At the sliding end, the positioning groove 425 engages with the positioning rail 106 to achieve automatic centering. This design, which integrates "downward pressure" and "centering" into a single moving part and is driven by the same push rod, simplifies the structure and ensures that the downward pressure reaches the design value after centering. Under the same locking force, the leakage rate is reduced by more than an order of magnitude compared to a single sealing gasket or a single sealing ring, and the pressure cycle life is increased by 2-3 times.

[0033] The working process of this embodiment is as follows: Opening process: The piston rod of cylinder 7 retracts, pulling the tilting frame 3 upward to tilt the cover 1 away from the end face of the compartment 2. At this time, the drive motor 8 does not need to operate (the locking rod 5 is in the retracted state); Closing process: The piston rod of cylinder 7 extends, pushing the tilting frame 3 downward to rotate, and the cover 1 covers the annular seat 4. The sealing ring 102 of the cover 1 initially enters the inner wall of the compartment 2, and the sealing gasket 104 contacts the end face of the compartment 2. Then, the drive motor 8 is started, and the worm gear 9 drives the worm wheel 602 and the rotating disk 6 to rotate. The arc-shaped hole 601 on the rotating disk 6 pushes the shaft 507 of each locking rod 5, causing the locking rod 5 to move radially outward. The locking head 501 is first inserted into the locking hole 44 of the locking block 43. As the rotating disk 6 continues to rotate, the elastic structure 504 is compressed, and the push rod 505 contacts and pushes the pressing block 422, which in turn drives the positioning pressing block 42 to slide along the slide groove 41. The relative movement of the inclined groove 424 and the inclined rail 105 further presses down the cover 1. At the same time, the positioning groove 425 cooperates with the positioning rail 106 to achieve center alignment. When the drive motor 8 reaches the set torque or rotates to the preset angle, it stops. Due to the self-locking of the worm gear, the locking state is maintained. At this time, the sealing ring 103 is tightly fitted to the inner wall of the chamber 2, and the sealing gasket 104 is evenly compressed under the downward pressure of the positioning pressing block 42, achieving double sealing.

[0034] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A disinfection chamber cover for a medical waste disinfection device, comprising a cover body (1), an annular seat (4) fixedly mounted on a chamber body (2), a flipping frame (3) fixedly connected to the cover body (1), and a cylinder (7) for rotating the flipping frame (3), wherein one end of the cylinder (7) is hinged to the chamber body (2); characterized in that: The cover (1) has a plurality of locking rods (5) evenly distributed along its circumference. The cover (1) is provided with a guide seat (101) that slides with the locking rods (5). The annular seat (4) is fixedly connected with a locking block (43) that cooperates with the locking rods (5). The locking block (43) is provided with a locking hole (44). The center of the cover (1) is rotatably connected with a rotating disk (6) for driving the locking rods (5) to move. The locking rod (5) includes a first connecting part (502), a second connecting part (503), and an elastic structure (504) disposed between the two. The first connecting part (502) is fixedly connected to a tapered locking head (501), and the second connecting part (503) is fixedly connected to a push rod (505). The annular seat (4) is provided with multiple arc-shaped sliding grooves (41), and a positioning block (42) is slidably connected in the sliding groove (41). An elastic element (426) is fixedly connected between the positioning block (42) and the sliding groove (41). The positioning block (42) is used to press the cover (1) and center it. One side of the positioning block (42) is provided with an inclined groove (424), and a positioning groove (425) is provided in the inclined groove (424). The circumference of the cover (1) is provided with an inclined rail (105) that is slidably connected to the inclined groove (424). A positioning rail (106) that cooperates with the positioning groove (425) is provided on the inclined rail (105).

2. The disinfection chamber cover of the medical waste disinfection equipment according to claim 1, characterized in that: A sealing ring (102) is fixedly connected to the lower surface of the cover (1). A sealing ring (103) is provided on the circumference of the sealing ring (102) to seal with the inner wall of the cabin (2). A sealing gasket (104) is provided around the sealing ring (102) to seal with the end face of the cabin (2).

3. The disinfection chamber cover of the medical waste disinfection equipment according to claim 1, characterized in that: The positioning block (42) has a wedge block (421) at one end, and the wedge block (421) is slidably connected to the extrusion block (422) on its inclined surface.

4. The disinfection chamber cover of the medical waste disinfection equipment according to claim 1, characterized in that: The rotating disk (6) has several eccentrically arranged arc-shaped holes (601), the locking rod (5) has a shaft (507) that slides with the arc-shaped holes (601), and the shaft (507) has a limit nut (508).

5. The disinfection chamber cover of the medical waste disinfection equipment according to claim 1, characterized in that: A drive motor (8) is fixedly installed on the tilting frame (3), and a worm gear (9) is fixedly connected to the output shaft of the drive motor (8). A worm wheel (602) is fixedly connected to the rotating disk (6) on the same axis.

6. The disinfection chamber cover of the medical waste disinfection equipment according to claim 1, characterized in that: The elastic structure (504) includes a slide rod and a spring. One end of the slide rod is fixedly connected to the first connecting part (502), and the other end slides through the second connecting part (503). The spring is sleeved on the slide rod and abuts between the first connecting part (502) and the second connecting part (503).

7. The disinfection chamber cover of the medical waste disinfection equipment according to claim 1, characterized in that: The sealing ring (102) and the lower surface of the cover (1) are integrally formed or fixedly connected. The sealing ring (103) is an O-ring rubber sealing ring, and the sealing gasket (104) is a high-temperature resistant silicone gasket.

8. The disinfection chamber cover of the medical waste disinfection equipment according to claim 1, characterized in that: The push rod (505) is provided with a limiting rod (506) at its end, and the extrusion block (422) is provided with a limiting hole (423) that is inserted and cooperates with the limiting rod (506).

9. The disinfection chamber cover of the medical waste disinfection equipment according to any one of claims 1-8, characterized in that: The tilting frame (3) is hinged to a fixed frame (301), which is fixedly installed on the cabin (2). The piston rod of the cylinder (7) is hinged to the tilting frame (3).

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