Endoscope instrument cleaning and disinfecting device

By designing a detachable and adjustable filter structure, the problems of difficult cleaning and inflexible efficiency of filter components in endoscopic instrument cleaning and disinfection devices have been solved. This achieves efficient interception and drainage of contaminants, reduces the risk of bacterial growth and cross-contamination, and improves the hygiene and ease of operation of the cleaning and disinfection device.

CN224926599UActive Publication Date: 2026-11-03GUOKONG INNOVATION MEDICAL TECH (TIANJIN) CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522501500.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-25
Publication Date
2026-11-03
Estimated Expiration
2035-11-25

AI Technical Summary

Technical Problem

In the existing drainage structure of endoscopic instrument cleaning and disinfection devices, the filter components are fixed and difficult to completely disassemble and clean, which easily leads to the adhesion of dirt, the growth of bacteria, the generation of odors and blockages. Furthermore, it is impossible to flexibly adjust the filtration efficiency and drainage speed according to the amount of dirt, which increases the burden on medical staff and poses a risk of cross-contamination.

Method used

A detachable and adjustable filter structure was designed, including a filter bucket, a dirt collection component, and an opening and closing adjustment mechanism. The filter bucket is stably connected to the drain pipe through a threaded connection, a magnetic suction component, and a support spring. The filtration efficiency and drainage speed are adjusted by the linkage of a limit rod and a sealing block. The impurity deposition effect is improved by combining a guide bucket and a dirt-blocking bucket.

Benefits of technology

It enables convenient cleaning of filter components, reduces the risk of dirt adhesion and bacterial growth, dynamically adjusts filtration efficiency and drainage speed to avoid clogging, reduces the risk of cross-contamination, and alleviates the burden on medical staff.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224926599U_ABST
    Figure CN224926599U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of endoscope instrument cleaning and disinfecting device, including washing tank, the washing tank bottom is connected with drain pipe, the inside of washing tank and the top end of drain pipe communication place detachably installed with adjustable filter structure, the adjustable filter structure includes filter hopper, the top end of filter hopper is set as connecting portion, the connecting portion is in and is provided with confluence cavity, the confluence cavity is equipped with sealing block, the bottom of sealing block is fixedly connected with the dirt collecting member of connecting rod, the dirt collecting member circumference outer wall and filter hopper circumference inner wall are closely attached, the sealing block is also provided with opening and closing degree adjusting mechanism, by the detachable connection of filter hopper and drain pipe, the problem that existing filter part is fixed and difficult to clean is solved, avoid dirt residue;Opening and closing degree adjusting mechanism can be according to sewage dirt quantity flexible adjustment confluence cavity opening and closing degree and filter hopper filter hole exposure amount, realize the dynamic adaptation of filtration efficiency and drainage speed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary devices, and more specifically, to an endoscope instrument cleaning and disinfection device. Background Technology

[0002] Currently, medical institutions typically rely on rinsing tanks to manually clean and disinfect endoscopic instruments, using high-pressure water jets to rinse the tube walls and lumens and immersing them in disinfectant. During this process, removed tissue debris, mucus, and other contaminants enter the rinsing tank with the water flow and are eventually drained. However, existing rinsing tank drainage structures have limitations. Their filter components are mostly fixed screens or simple drain outlets, providing only basic filtration and making thorough disassembly and cleaning difficult. When waste flows through the drain outlet, some tissue debris and mucus easily adhere to the inner wall of the drain connection pipe and the connection between the filter components and the drain outlet. Long-term accumulation can not only breed bacteria and contaminate the cleaning environment but also produce odors and even block the drainage channel. Furthermore, existing filtration structures cannot flexibly adjust filtration efficiency and drainage speed according to the amount of contaminants in the wastewater. When there is a lot of contaminants, the fixed filter holes are easily clogged, affecting drainage; when there is little contaminants, over-filtration reduces cleaning efficiency. These problems not only increase the cleaning burden on medical staff, but may also lead to cross-contamination risks due to incomplete cleaning, making it difficult to meet the hygiene requirements for cleaning and disinfecting endoscopic instruments.

[0003] How to invent an endoscope instrument cleaning and disinfection device to improve these problems has become an urgent problem for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an endoscope instrument cleaning and disinfection device, which aims to improve the existing manual cleaning rinsing tank drainage structure for endoscope instruments. In this device, the filter components are mostly fixed and difficult to completely disassemble and clean, which easily leads to tissue debris and mucus adhering to the inner wall and connection of the drainage pipe. Over time, this can lead to the growth of bacteria, the generation of odors, and even blockage of the drainage channel. Furthermore, it is impossible to flexibly adjust the filtration efficiency and drainage speed according to the amount of sewage and waste, which increases the cleaning burden on medical staff and poses a risk of cross-contamination.

[0005] This utility model is implemented as follows: An endoscope instrument cleaning and disinfection device includes a rinsing tank. A drain connection pipe is connected to the bottom of the rinsing tank. An adjustable filter structure is detachably installed inside the rinsing tank at the connection point with the top of the drain connection pipe. The adjustable filter structure includes a filter bucket. The filter bucket is a cup-shaped cylinder with an upward opening and several evenly distributed filter holes on its outer circumference. The top of the filter bucket is a connecting part. A confluence cavity communicating with the top of the filter bucket is provided in the connecting part. A sealing block with an external structure corresponding to and fitting inside the confluence cavity is provided inside the confluence cavity. A dirt collection component is fixedly connected to the bottom surface of the sealing block by a connecting rod. The dirt collection component is also a cup-shaped structure with an upward opening, and its outer circumference is tightly fitted to the inner circumference of the filter bucket. An opening and closing adjustment mechanism is also provided on the sealing block.

[0006] In a preferred embodiment of this utility model, an external thread is provided on the outer wall of the connecting part, and a corresponding threaded groove is provided on the inner wall of the top of the drain connecting pipe. The filter bucket is threadedly connected to the inner wall of the top of the drain connecting pipe through the cooperation of the external thread and the threaded groove.

[0007] In a preferred embodiment of this utility model, an annular mounting groove is provided on the inner wall of the bottom of the manifold, and a guide bucket is detachably connected to the mounting groove. The guide bucket has a conical bucket-shaped structure with a top opening diameter larger than the bottom opening diameter. The connecting rod is located on the axis of the guide bucket, and the bottom opening of the guide bucket extends into the filter bucket.

[0008] In a preferred embodiment of this utility model, the top of the guide bucket is provided with an annular protrusion corresponding to the mounting groove, and both the annular protrusion and the mounting groove are provided with magnetic suction components and are detachably connected through the magnetic suction components.

[0009] In a preferred embodiment of this utility model, the opening and closing adjustment mechanism includes a support spring. One end of the support spring is fixedly connected to the inner wall of the bottom of the filter bucket, and the other end of the support spring abuts against the bottom surface of the dirt collection component. A mounting hole is provided through the upper surface of the filter bucket, and a limiting rod is rotatably connected in the mounting hole. A through hole is provided on the surface of the connecting part for the limiting rod to extend. A plurality of limiting protrusions are integrally provided on the outer wall of the limiting rod along its extension direction, and an interlaced angle is provided between every two adjacent limiting protrusions. A through groove corresponding to the limiting protrusion is provided on the inner wall of the through hole.

[0010] In a preferred embodiment of this utility model, a sludge-blocking hopper is integrally formed between the inner walls of the sludge collection component and the sludge-blocking hopper. The diameter of the top opening of the sludge-blocking hopper is larger than the diameter of the bottom opening, and the edge of the top circumference is integrally formed with the inner wall of the sludge collection component.

[0011] In a preferred embodiment of this utility model, the inner wall of the manifold is configured as a multi-step structure with each step connected by a sloping structure, and the outer wall of the sealing block is configured to correspond to the inner wall of the manifold.

[0012] The beneficial effects of this utility model are as follows: The endoscope instrument cleaning and disinfection device obtained by the above design solves the problem of difficult cleaning of existing filter components by detachably connecting the filter bucket and the drain pipe, making it easier for medical staff to thoroughly clean each filter component and avoid dirt residue; with the synergistic effect of the filter bucket and the dirt collection component, it can efficiently intercept tissue debris and mucus in the sewage, reduce the situation of dirt adhering to the drainage structure, reduce the risk of bacterial growth and odor generation from the source, and prevent the drainage channel from being blocked; through the opening and closing adjustment mechanism, the opening and closing degree of the manifold and the exposure of the filter bucket holes can be flexibly adjusted according to the amount of sewage and dirt, so as to achieve dynamic adaptation of filtration efficiency and drainage speed, avoid the problem of filter hole blockage when there is a lot of dirt and low efficiency when there is little dirt, and reduce the cleaning and operation burden of medical staff. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic perspective view of the overall structure provided by the embodiment of this utility model; Figure 2 A three-dimensional schematic cross-sectional view of the overall structure provided for the embodiments of this utility model; Figure 3 A three-dimensional schematic cross-sectional view of the flushing tank provided for an embodiment of this utility model; Figure 4 A three-dimensional cross-sectional view of the adjustable filter structure provided for an embodiment of this utility model; Figure 5 A three-dimensional schematic cross-sectional view of the adjustable filter structure provided for an embodiment of this utility model. Figure 6 A perspective view of the overall structure of the limiting rod provided for an embodiment of this utility model.

[0015] In the diagram: 1-rinsing tank; 2-adjustable filter structure; 101-drainage connection pipe; 102-threaded groove; 201-filter bucket; 202-combination cavity; 203-external thread; 204-sealing block; 205-connecting rod; 206-sludge collection component; 207-mounting groove; 208-guide bucket; 209-support spring; 210-mounting hole; 211-limiting rod; 212-limiting protrusion; 213-perforation; 214-through groove; 215-sludge trap. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Please see Figures 1 to 6 This utility model provides a technical solution: an endoscope instrument cleaning and disinfection device, including a rinsing tank 1, a drain connection pipe 101 connected to the bottom of the rinsing tank 1, and an adjustable filter structure 2 detachably installed at the connection between the rinsing tank 1 and the top of the drain connection pipe 101. The adjustable filter structure 2 includes a filter bucket 201, which is a cup-shaped cylinder with an upward opening and several evenly distributed filter holes on its outer circumference. The top of the filter bucket 201 is a connecting part, and a confluence cavity 202 connected to the top of the filter bucket 201 is provided in the connecting part. A sealing block 204 with an external structure corresponding to it is provided in the confluence cavity 202. A dirt collection component 206 is fixedly connected to the bottom surface of the sealing block 204 by a connecting rod 205. The dirt collection component 206 is also a cup-shaped structure with an upward opening and its outer circumference is tightly fitted to the inner circumference of the filter bucket 201. An opening and closing adjustment mechanism is also provided on the sealing block 204.

[0018] Please see Figure 3 and Figure 4 The outer wall of the connecting part is provided with an external thread 203, and the inner wall of the top of the drain connecting pipe 101 is provided with a corresponding threaded groove 102. The filter bucket 201 is threadedly connected to the inner wall of the top of the drain connecting pipe 101 through the cooperation of the external thread 203 and the threaded groove 102.

[0019] To achieve a detachable connection between the adjustable filter structure 2 and the drain connection pipe 101, an external thread 203 is provided on the outer wall of the connecting part at the top of the filter bucket 201, and a corresponding threaded groove 102 is machined on the inner wall of the drain connection pipe 101. During installation, align the external thread 203 with the threaded groove 102, rotate the filter bucket 201 to screw the external thread 203 into the threaded groove 102 until the connecting part is tightly fitted to the top of the drain connection pipe 101, ensuring a stable connection. For disassembly, simply rotate the filter bucket 201 in the opposite direction to remove it. The threaded connection not only prevents structural detachment caused by water flow impact but also facilitates regular and thorough cleaning of the adjustable filter structure 2 by medical personnel, preventing the growth of bacteria from residual impurities. Compared to snap-fit ​​or plug-in connections, it offers superior sealing and stability, improving the hygiene and durability of the device.

[0020] Please refer to Figures 4 to 5. Figure 6 The bottom inner wall of the manifold 202 is provided with an annular mounting groove 207. A guide bucket 208 is detachably connected to the mounting groove 207. The guide bucket 208 has a conical bucket-shaped structure with a top opening diameter larger than the bottom opening diameter. The connecting rod 205 is located on the axis of the guide bucket 208. The bottom opening of the guide bucket 208 extends into the filter bucket 201.

[0021] An annular mounting groove 207 is formed on the inner wall of the bottom of the confluence chamber 202. A guide bucket 208 is detachably connected to the groove. The guide bucket 208 is a conical bucket-shaped structure with a top opening diameter larger than the bottom opening diameter. The connecting rod 205 is located on the axis of the guide bucket 208, and its bottom end extends into the filter bucket 201. When sewage flows into the confluence chamber 202 after being regulated by the sealing block 204, it will first enter the large opening at the top of the guide bucket 208, and then converge along the conical inner wall to the small opening at the bottom. During this process, the water flow speed is buffered to prevent impurities from being washed away due to excessive water flow. The axial positioning of the connecting rod 205 ensures that the guide bucket 208 does not shift after installation, so that the buffered sewage flows accurately into the dirt collection component 206, further improving the impurity deposition effect and solving the problem of impurity dispersion and incomplete filtration caused by direct water flow impact in traditional filtration structures.

[0022] Furthermore, the top of the guide bucket 208 is provided with an annular protrusion corresponding to the mounting groove 207. Both the annular protrusion and the mounting groove 207 are provided with magnetic components and are detachably connected through the magnetic components.

[0023] An annular protrusion corresponding to the mounting groove 207 is provided at the top of the guide bucket 208, and magnetic components are provided in both the annular protrusion and the mounting groove 207. During installation, the annular protrusion is aligned with the mounting groove 207, and the guide bucket 208 can be quickly and stably adsorbed into the mounting groove 207 by means of the attraction of the magnetic components, without the need for additional tools; during cleaning, the guide bucket 208 can be removed with a little force. The magnetic detachable connection not only ensures the stability of the guide bucket 208 in use, but also simplifies the disassembly and assembly process, facilitates thorough cleaning, prevents impurities from remaining, and improves the convenience and hygiene of cleaning the device.

[0024] Furthermore, the opening and closing adjustment mechanism includes a support spring 209. One end of the support spring 209 is fixedly connected to the bottom inner wall of the filter bucket 201, and the other end of the support spring 209 abuts against the bottom surface of the dirt collection component 206. A mounting hole 210 is provided through the upper surface of the filter bucket 201. A limit rod 211 is rotatably connected in the mounting hole 210. A through hole 213 is provided on the surface of the connecting part for the limit rod 211 to extend. A plurality of limit protrusions 212 are integrally provided on the outer wall of the limit rod 211 along its extension direction, and an interlaced angle is provided between every two adjacent limit protrusions 212. A through groove 214 corresponding to the limit protrusion 212 is provided on the inner wall of one side of the through hole 213.

[0025] During adjustment, first rotate the limiting rod 211 to align the limiting protrusion 212 with the through groove 214 one by one. After releasing the limit, the limiting rod 211 can be moved up and down. When the limiting rod 211 is moved upward, it will drive the sealing block 204 to move upward synchronously. At this time, the opening and closing degree between the confluence chamber 202 and the sealing block 204 increases, allowing more water to pass through at the same time. At the same time, the dirt collecting part 206 moves upward with the help of the support spring 209. Because the outer wall of the dirt collecting part 206 is closely attached to the inner wall of the filter bucket 201, the upward-moving dirt collecting part 206 will cover more filter holes on the outer wall of the filter bucket 201, resulting in a reduction in the number of exposed filter holes and enhancing the interception effect of fine impurities. When the limiting rod 211 is moved downwards, it overcomes the elastic force of the supporting spring 209, causing the sealing block 204 to move downwards synchronously. At this time, the opening and closing degree between the confluence chamber 202 and the sealing block 204 decreases, slowing down the water flow speed. Simultaneously, the dirt collection component 206 moves downwards, reducing the coverage area of ​​the filter holes on the outer wall of the filter bucket 201, increasing the number of exposed filter holes, and improving drainage efficiency. After adjusting to the target position, the limiting rod 211 is rotated again to displace the limiting protrusion 212 from the through groove 214, and the limiting protrusion 212 is fixed by abutting against the bottom surface of the connecting part. Through the linkage of the limiting rod 211, sealing block 204, and dirt collection component 206, the amount of filter holes exposed and the opening degree of the manifold 202 are adjusted in a reverse coordinated manner. When treating sewage with more impurities, the limiting rod 211 can be moved upwards, with a combination of a large opening degree and fewer filter holes, ensuring both rapid sewage inflow and enhanced filtration interception. When treating sewage with fewer impurities, the limiting rod 211 can be moved downwards, with a combination of a small opening degree and more filter holes, slowing down the water flow to prevent impurities from being dispersed while improving drainage efficiency. Compared to the shortcomings of traditional fixed filtration structures that cannot accommodate different impurity contents, this adjustment mechanism achieves a dynamic balance between filtration effect and drainage efficiency, improving the adaptability and practicality of the device.

[0026] Furthermore, a sludge-blocking hopper 215 is integrally formed between the inner walls of the sludge collection component 206 and the sludge-blocking hopper 215. The diameter of the opening at the top of the sludge-blocking hopper 215 is larger than the diameter of the opening at the bottom, and the edge of the top circumference is integrally formed with the inner wall of the sludge collection component 206.

[0027] A baffle hopper 215 is integrally formed between the inner walls of the collection element 206 and the surrounding perimeter. The diameter of the opening at the top of the baffle hopper 215 is larger than that at the bottom, and the edge of the top perimeter is integrally formed with the inner wall of the collection element 206. When sewage buffered by the guide hopper 208 flows into the collection element 206, it first contacts the large opening at the top of the baffle hopper 215, and then converges along the conical inner wall towards the small opening at the bottom. During this process, dense impurities such as tissue debris and mucus are deposited in the space formed by the baffle hopper 215 and the bottom of the collection element 206 due to gravity and the buffering effect of the water flow. Water overflows from the top edge of the baffle hopper 215 and is discharged through the filter holes of the filter bucket 201. The presence of the baffle hopper 215 further enhances the impurity deposition effect, reduces the overflow of impurities with water, and allows more impurities to be intercepted in the collection element 206, improving the thoroughness of filtration and preventing pipe blockage or subsequent pollution problems caused by impurities entering the drain connection pipe 101.

[0028] Furthermore, the inner wall of the manifold 202 is configured as a multi-step structure with each step connected by a sloping structure, and the outer wall of the sealing block 204 is configured as a structure corresponding to the inner wall of the manifold 202.

[0029] The inner wall of the manifold 202 is designed with multiple steps, with each step connected by a sloping structure. The outer wall of the sealing block 204 has a structure corresponding to the inner wall of the manifold 202. When the sealing block 204 moves up and down within the manifold 202, the multi-step surface of the outer wall and the sloping surface of the inner wall of the manifold 202 cooperate, which increases the sealing contact area, improves the sealing effect, prevents sewage from leaking from gaps, and ensures that sewage flows along the predetermined filtration path. On the other hand, the sloping connection makes the movement and adjustment of the opening and closing degree of the sealing block 204 smoother, reduces jamming, and different step positions correspond to different opening and closing degree settings, which makes it easy for medical staff to accurately control the water flow. This further optimizes the accuracy of water flow adjustment and sealing reliability, ensuring that the device works stably under different opening and closing degrees.

[0030] Working principle: During manual cleaning of endoscopic instruments, the rinsing tank 1 receives the wastewater generated during rinsing. The adjustable filter structure 2 is threadedly connected to the threaded groove 102 at the top of the drain connection pipe 101 via the external thread 203, achieving a stable and detachable installation. Wastewater first flows into the manifold 202. At this time, the opening and closing adjustment mechanism moves the limiting rod 211 up and down. If the limiting rod 211 moves up, it will drive the sealing block 204 to move up, increasing the opening and closing degree of the manifold 202. At the same time, the dirt collection part 206 moves up with the help of the support spring 209, covering more of the filter holes on the outer wall of the filter bucket 201 to enhance filtration. If the limiting rod 211 moves down, it will overcome the elasticity of the support spring 209 and drive the sealing block 204 down, reducing the opening and closing degree of the manifold 202. The dirt collection part 206 moves down, reducing the coverage of the filter holes in the filter bucket 201. To improve drainage efficiency, the adjusted rotating limit rod 211 is fixed by the limit protrusion 212 abutting against the bottom surface of the connecting part; the guide bucket 208 in the confluence chamber 202 is detachably connected to the mounting groove 207 through a magnetic suction component, which buffers the incoming sewage and allows the sewage to flow smoothly into the collection component 206 along the guide bucket 208. The baffle bucket 215 in the collection component 206 further enhances the deposition effect of dense impurities such as tissue debris and mucus, allowing the impurities to remain in the collection component 206, while the water overflows from the top edge of the baffle bucket 215, passes through the gap between the collection component 206 and the filter bucket 201 and the filter holes on the outer wall of the filter bucket 201, and finally enters the drainage connection pipe 101 and is discharged through the matching drainage component. This achieves dynamic adjustment of the filtration and drainage balance according to the sewage conditions, effectively intercepts impurities and avoids subsequent pollution.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An endoscopic instrument cleaning and disinfection device, characterized in that, The device includes a rinsing tank, with a drain pipe connected to its bottom. An adjustable filter structure is detachably installed inside the rinsing tank at the connection point between the drain pipe and the top of the rinsing tank. The adjustable filter structure includes a filter bucket, which is a cup-shaped cylinder with an upward opening and several evenly distributed filter holes on its outer wall. The top of the filter bucket is a connecting part, and a confluence cavity communicating with the top of the filter bucket is provided inside the connecting part. A sealing block with an external structure corresponding to the confluence cavity is provided inside the confluence cavity. A dirt collection component is fixedly connected to the bottom surface of the sealing block by a connecting rod. The dirt collection component is also a cup-shaped structure with an upward opening, and its outer wall is tightly fitted to the inner wall of the filter bucket. An opening and closing adjustment mechanism is also provided on the sealing block.

2. The endoscopic instrument cleaning and disinfection device as described in claim 1, characterized in that: The outer wall of the connecting part is provided with an external thread, and the inner wall of the top of the drain connecting pipe is provided with a corresponding threaded groove. The filter bucket is threadedly connected to the inner wall of the top of the drain connecting pipe through the cooperation of the external thread and the threaded groove.

3. The endoscopic instrument cleaning and disinfection device as described in claim 1, characterized in that: The bottom inner wall of the manifold is provided with an annular mounting groove, and a guide bucket is detachably connected to the mounting groove. The guide bucket has a conical bucket-shaped structure with a top opening diameter larger than the bottom opening diameter. The connecting rod is located on the axis of the guide bucket, and the bottom opening of the guide bucket extends into the filter bucket.

4. The endoscopic instrument cleaning and disinfection device as described in claim 3, characterized in that: The top of the guide bucket is provided with an annular protrusion corresponding to the mounting groove. Both the annular protrusion and the mounting groove are provided with magnetic components and are detachably connected through the magnetic components.

5. The endoscopic instrument cleaning and disinfection device as described in claim 1, characterized in that: The opening and closing adjustment mechanism includes a support spring. One end of the support spring is fixedly connected to the inner wall of the bottom of the filter bucket, and the other end of the support spring abuts against the bottom surface of the dirt collection component. A mounting hole is opened through the upper surface of the filter bucket. A limit rod is rotatably connected in the mounting hole. A through hole is opened on the surface of the connecting part for the limit rod to extend. A plurality of limit protrusions are integrally provided on the outer wall of the limit rod along its extension direction, and an interlaced angle is provided between every two adjacent limit protrusions. A through groove corresponding to the limit protrusion is provided on the inner wall of the through hole.

6. The endoscopic instrument cleaning and disinfection device as described in claim 1, characterized in that: A sludge-blocking hopper is integrally formed between the inner walls of the sludge collection component and the sludge-blocking hopper. The diameter of the opening at the top of the sludge-blocking hopper is larger than the diameter of the opening at the bottom, and the edge of the top circumference is integrally formed with the inner wall of the sludge collection component.

7. The endoscopic instrument cleaning and disinfection device as described in claim 1, characterized in that: The inner wall of the manifold is configured as a multi-step structure with each step connected by a sloping structure, and the outer wall of the sealing block is configured to correspond to the inner wall of the manifold.