Medical waste cabinet steel wire multiplication stage converter

By incorporating structural designs such as extended-range traction frames, guide sleeves, and tension springs, the problem of insufficient opening and closing angles in medical waste cabinets under space constraints has been solved, enabling large-angle opening and closing and automatic reset, thus improving ease of use and stability.

CN224492345UActive Publication Date: 2026-07-14GUANGZHOU HUASHEN FURNITURE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU HUASHEN FURNITURE
Filing Date
2025-10-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing foot-operated opening and closing mechanisms for medical waste cabinets, when space is limited, cannot simultaneously guarantee sufficient opening angle and ease of use, resulting in insufficient opening of the cabinet door or jamming, affecting ease of use and hygiene safety.

Method used

The design incorporates a range extender, guide sleeve, and tension spring. By leveraging the lever principle, the small stroke of the foot pedal is converted into a large stroke of the cabinet door. The guide sleeve and wear-resistant lining reduce friction loss, and the tension spring enables the cabinet door to automatically reset. The limit frame ensures stability and accuracy.

Benefits of technology

It enables cabinet doors to open and close at large angles in confined spaces, reducing frictional wear, improving ease of use and hygiene, and lowering maintenance frequency and operating procedures.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a medical waste cabinet steel wire multiplication range converter relates to the technical field of waste cabinet accessories, and the utility model discloses a bottom plate and support plate, and its characterized in that: the support plate outer surface below is connected with the range increasing traction frame through the pad high board, and the range increasing traction frame bottom side respectively is equipped with first connecting hole and second connecting hole, and the range increasing traction frame is connected with the support plate between the extension spring, the utility model discloses the setting of pad high board, range increasing traction frame, first connecting hole, second connecting hole and spacing holder, and pad high board can increase the interval between range increasing traction frame and support plate, and provide sufficient activity space for the rotation of range increasing traction frame, reduce the hindering of bolt parts to its rotation, range increasing traction frame as core lever structure, first connecting hole and rotation center form short force arm and second connecting hole and rotation center form long force arm's force arm, increase the stroke through the hard lever, can reduce the pedal size adaptation medical waste cabinet below narrow space.
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Description

Technical Field

[0001] This utility model relates to the technical field of garbage cabinet accessories, specifically a wire range multiplier converter for medical garbage cabinets. Background Technology

[0002] Medical waste bins are specialized equipment used in medical settings to centrally store medical waste. They are mainly used to collect medical waste such as cotton swabs, syringes, and dressings that may carry pathogens or be contaminated. They need to have a certain degree of airtightness and structural stability to avoid secondary pollution of the environment by medical waste and to ensure the hygiene and safety of medical facilities.

[0003] The use of foot-operated opening and closing mechanisms in medical waste cabinets is of significant necessity. During the diagnosis and treatment process, medical staff frequently come into contact with patients' bodily fluids and medical instruments. If the cabinet door is opened and closed directly by hand, it is easy to cause cross-contamination between the hands and the surface of the waste cabinet, increasing the risk of infection. Foot-operated opening and closing eliminates the need for hand contact, allowing the cabinet door to be opened and closed directly by stepping on the foot. This aligns with hygiene standards for reducing contact contamination in medical settings, effectively lowering the probability of infection for medical staff and ensuring hygiene and safety during operation.

[0004] Existing foot-operated medical waste bins rely on steel wires to connect the foot pedal to the door for power transmission. Due to space limitations in medical facilities, increasing the foot pedal travel is necessary to ensure a sufficiently large opening angle for waste disposal, which would increase the overall size of the foot pedal and require raising the waste bin. Conversely, reducing the foot pedal size to fit the space would shorten the foot pedal travel, resulting in an insufficient opening angle for the door. This could lead to problems such as jamming and spillage when disposing of medical waste, affecting ease of use. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a wire range multiplier converter for medical waste cabinets to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steel wire range extender for a medical waste cabinet, comprising a base plate and a support plate, characterized in that: a range extender traction frame is connected to the lower part of the outer surface of the support plate via a raised plate, and a first connecting hole and a second connecting hole are respectively opened on both sides of the bottom of the range extender traction frame; a tension spring is connected between the range extender traction frame and the support plate; a first guide sleeve and a second guide sleeve are respectively passed through the bottom sides of the support plate, and a wear-resistant liner is fixed inside both the first guide sleeve and the second guide sleeve; a limit frame is connected above the outer surface of the support plate.

[0007] By adopting the above technical solutions, the raised plate can increase the distance between the extended-range traction frame and the support plate, reserving sufficient space for the rotation of the extended-range traction frame and avoiding obstruction of its movement by bolts and other components; the extended-range traction frame, as the core lever structure, can convert the small stroke input by the foot pedal into the large stroke required by the cabinet door through the difference in lever arm between the first and second connecting holes, solving the contradiction between limited space and insufficient opening and closing angle; the tension spring can store energy when the traction frame rotates and release energy when the foot pedal is released, realizing automatic reset of the cabinet door; the first and second guide sleeves can constrain the transmission path of the steel wire and reduce deviation; the wear-resistant liner can reduce the friction loss between the steel wire and the sleeve and extend the service life of the components; the limit frame can control the rotation range and initial position of the traction frame, ensuring operational stability. The coordinated action of all components meets the core requirements of foot pedal opening and closing of the medical waste cabinet.

[0008] Furthermore, the first guide sleeve is located to the side below the first connecting hole, and the second guide sleeve is located to the side below the second connecting hole.

[0009] By adopting the above technical solution, the power input steel wire can be directly connected to the first connecting hole after passing through the first guide sleeve, and the power output steel wire can be directly connected to the second connecting hole after passing through the second guide sleeve, thus avoiding excessive bending or deviation of the steel wire during the connection process and reducing resistance and energy loss during power transmission.

[0010] Furthermore, the range extender traction frame is L-shaped and rotatably connected to the elevation plate, and the range extender traction frame abuts against the limiting frame.

[0011] By adopting the above technical solutions, the L-shaped structure can reasonably separate the first connecting hole and the second connecting hole, which facilitates the design of the lever arm ratio and the connection of the steel wire; the rotational connection between the extended traction frame and the raised plate provides a stable rotation fulcrum for the traction frame, ensuring smooth lever action; and the contact between the traction frame and the limit frame can directly limit the maximum rotation angle of the traction frame, preventing the steel wire from breaking or the cabinet door from being damaged due to excessive rotation, while fixing the initial position of the traction frame, reducing the angle deviation of each foot pedal action, and ensuring control accuracy.

[0012] Furthermore, four hanging slots are provided on both sides of the outer surface of the base plate, and four hooks are connected to both sides of the back of the support plate. The support plate is detachably connected to the base plate through the four hooks and the four hanging slots.

[0013] By adopting the above technical solution, the corresponding cooperation of the four hooks and four hanging slots can realize the rapid positioning and initial limiting of the support plate and the base plate, ensuring the accurate installation position of the support plate; at the same time, the detachable structure of the hooks and hanging slots can separate the support plate from the base plate without the need for complicated tools. During subsequent maintenance, the support plate can be lifted and removed directly, which greatly simplifies the disassembly and assembly process of the support plate and the components above it and improves the convenience of maintenance.

[0014] Furthermore, a second bolt penetrates the outer surface of the range-extending traction frame, and the shim plate and the range-extending traction frame are detachably connected to the support plate via the second bolt.

[0015] By adopting the above technical solution, the second bolt can limit the positioning of the shim plate, the range extender traction frame and the support plate, preventing the range extender traction frame from falling off and ensuring the stability of the lever action; at the same time, the detachable connection design allows the components to be separated by removing the second bolt when the shim plate or the range extender traction frame needs to be replaced in the future, without damaging the overall structure, reducing maintenance costs and operation difficulty.

[0016] Furthermore, both the first guide sleeve and the second guide sleeve are provided with external threads and nuts, and the first guide sleeve and the second guide sleeve are detachably connected to the support plate through the nuts.

[0017] By adopting the above technical solution, the engagement of the external thread and the nut can firmly limit the guide sleeve to the support plate, preventing the guide sleeve from loosening or shifting during the sliding of the steel wire, thus ensuring the stability of the guiding function. The guide sleeve can be separated from the support plate by removing the nut, and the guide sleeve and wear-resistant liner can be replaced subsequently, further improving the flexibility and convenience of component replacement.

[0018] Furthermore, a third bolt connects the limiting frame and the support plate, and the limiting frame is detachably connected to the support plate via the third bolt.

[0019] By adopting the above technical solution, the third bolt can provide stable fixed support for the limit frame, ensuring that the limit frame does not shift during contact with the range extender traction frame, and reliably limiting the rotation range of the traction frame; when the limit frame is worn, it can be quickly disassembled and replaced without modifying the support plate, thus improving the adaptability and maintenance convenience of the device.

[0020] Furthermore, mounting plates are connected to both the top and bottom sides of the base plate.

[0021] By adopting the above technical solution, the four mounting plates can provide stable mounting points for the connection between the base plate and the medical waste cabinet. Subsequently, the mounting plates can be fixed to the preset installation positions of the waste cabinet with bolts to achieve a firm assembly of the converter as a whole, avoiding shaking or displacement of the converter during use, ensuring the operational stability of the overall structure. At the same time, the symmetrical distribution of the mounting plates can also make the force more even and extend the service life of the device.

[0022] Furthermore, a shim is connected between the base plate and the support plate, and a first bolt connects the base plate, the shim, and the support plate.

[0023] By adopting the above technical solution, the shim block can specifically fill the gap between the base plate and the support plate, avoiding bending deformation of the base plate or support plate due to uneven force after the first bolt is tightened because the gap is too large, thus ensuring the flatness and rigidity of the support structure; the first bolt can further enhance the connection stability between the base plate, the shim block and the support plate, reducing the risk of displacement or falling off of the support plate during the stress process.

[0024] Furthermore, the wear-resistant liner is made of POM, PTFE, MC nylon or PEEK material.

[0025] By adopting the above technical solutions, POM, PTFE, MC nylon, and PEEK are all wear-resistant and self-lubricating materials with low surface friction coefficients, which can significantly reduce the direct friction loss between the steel wire and the inner wall of the guide sleeve, extending the service life of the steel wire and the guide sleeve. At the same time, the self-lubricating properties can ensure smooth sliding of the steel wire in the sleeve, reduce the jamming phenomenon in the power transmission process, maintain the power transmission efficiency in long-term use, and these materials have good chemical stability, which can adapt to the sanitary environment of medical scenarios and reduce the maintenance frequency caused by material aging.

[0026] In summary, the present invention has the following main advantages:

[0027] 1. This utility model, through the setting of a raised plate, a range-extending traction frame, a first connecting hole, a second connecting hole, and a limiting frame, allows the raised plate to increase the distance between the range-extending traction frame and the support plate, providing ample space for the rotation of the range-extending traction frame and reducing the obstruction to its rotation by bolts and other components. The range-extending traction frame, as the core lever structure, has a lever arm formed by the first connecting hole and the rotation center forming a short lever arm, and a lever arm formed by the second connecting hole and the rotation center forming a long lever arm. This transforms the small-stroke rotation of the input wire connected to the foot pedal into a large-stroke rotation of the output wire connected to the cabinet door, achieving the effect of a small-angle rotation of the foot pedal opening the cabinet door at a large angle. The limiting frame restricts the maximum rotation angle and starting position of the range-extending traction frame, reducing the impact of angular deviations on the foot pedal control accuracy and the stability of the cabinet door opening and closing, further ensuring the reliability of the overall structure. By increasing the stroke through a force-increasing lever, the size of the foot pedal can be reduced to fit the narrow space under the medical waste cabinet.

[0028] 2. This utility model, through the arrangement of a first guide sleeve, a second guide sleeve, and a wear-resistant liner, allows the first and second guide sleeves to guide the power input and output steel wires respectively, reducing wire deviation during power transmission and ensuring power transmission stability. The wear-resistant liner, in direct contact with the steel wire, reduces wear between the steel wire and the inner wall of the guide sleeve, extending the service life of the steel wire, the first guide sleeve, and the second guide sleeve, reducing component replacement frequency, maintaining power transmission efficiency, and reducing structural wear.

[0029] 3. This utility model, through the setting of a tension spring, allows the tension spring to be stretched and store elastic potential energy when medical staff step on the foot pedal to rotate the extended traction frame and open the cabinet door; when the medical staff stop stepping on the foot pedal, the tension spring loses the external force and releases the potential energy, driving the extended traction frame to reverse and reset, thereby automatically closing the cabinet door, reducing the operation steps of manually closing the cabinet door, improving the convenience of use, while maintaining the continuity of the cabinet door opening and closing process, ensuring the timely closure requirement after medical waste disposal; further facilitating operation. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the back structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the back structure of the support plate of this utility model;

[0033] Figure 4 This is a schematic diagram of the cross-sectional structure of the first guide sleeve of this utility model;

[0034] Figure 5 This is a schematic diagram of the exploded structure of this utility model.

[0035] In the diagram: 1. Base plate; 2. Mounting plate; 3. Support plate; 4. Hook; 5. Hanging groove; 6. First bolt; 7. Elevating block; 8. First guide sleeve; 9. Second guide sleeve; 10. Wear-resistant liner; 11. Elevating plate; 12. Range extender traction frame; 13. Second bolt; 14. First connecting hole; 15. Second connecting hole; 16. Tension spring; 17. Limiting frame; 18. Third bolt. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] The embodiments of this utility model will be described below based on its overall structure.

[0038] Example 1:

[0039] A wire range multiplier converter for medical waste cabinets, such as Figures 1-5As shown, the system includes a base plate 1 and a support plate 3. A range extender traction frame 12 is connected to the lower outer surface of the support plate 3 via a raised plate 11. The range extender traction frame 12 is L-shaped and rotatably connected to the raised plate 11. A first connecting hole 14 and a second connecting hole 15 are respectively opened on both sides of the bottom of the range extender traction frame 12. A tension spring 16 connects the range extender traction frame 12 and the support plate 3. A first guide sleeve 8 and a second guide sleeve 9 pass through both sides of the bottom of the support plate 3. The first guide sleeve 8 is located to the side and below the first connecting hole 14, and the second guide sleeve 9 is located to the side and below the second connecting hole 15. Both the guide sleeve 8 and the second guide sleeve 9 have wear-resistant inner linings 10 fixed inside. A limit frame 17 is connected above the outer surface of the support plate 3. The extended range traction frame 12 abuts against the limit frame 17. When medical staff step on the foot pedal of the medical waste cabinet, the power generated by the foot pedal is transmitted to the first connecting hole 14 through the input steel wire, causing the extended range traction frame 12 to rotate around its connection point with the raised plate 11. Because the extended range traction frame 12 has an L-shaped structure, its rotation trajectory can stably cover the stroke requirements of power input and output. At this time, the distance between the first connecting hole 14 and the center of rotation forms a short lever arm, and the distance between the second connecting hole 15 and the center of rotation forms a short lever arm. The distance between the two components forms a long lever arm, creating a lever structure that requires more effort. The short lever arm rotates only a small angle under the pull of the input wire, and through the lever arm amplification effect, it simultaneously drives the long lever arm to rotate at a large angle. The long lever arm then transmits the amplified stroke to the cabinet door via the output wire, ultimately achieving the effect of opening the cabinet door at a large angle with a small foot pedal stroke. While the extended-range traction frame 12 rotates, the tension spring 16 connected to it and the support plate 3 is simultaneously stretched, gradually storing elastic potential energy. This process is synchronized in real-time with the rotation of the traction frame, ensuring that the tension spring 16 can accurately store elastic potential energy according to the displacement of the traction frame. Yes, it provides energy reserves for the automatic reset of the cabinet door. When medical staff finish disposing of the waste and stop stepping on the pedal, the tension of the input steel wire on the first connecting hole 14 disappears, the tension spring 16 loses its external restraint, and begins to release the stored elastic potential energy, pulling the extended traction frame 12 to rotate in the opposite direction around the center of rotation to reset. The reset action of the extended traction frame 12 is transmitted to the output steel wire through the second connecting hole 15, thereby driving the cabinet door to close automatically. No manual operation is required from medical staff, which reduces additional operation steps, improves ease of use, and ensures that the cabinet door closes in time after medical waste is disposed of, reducing the risk of waste pollution to the environment.

[0040] See Figures 1-5In the above embodiment, four hanging slots 5 are provided on both sides of the outer surface of the base plate 1, and four hooks 4 are connected to both sides of the back of the support plate 3. The support plate 3 is detachably connected to the base plate 1 through the four hooks 4 and the four hanging slots 5. Maintenance personnel can complete the assembly by combining the hooks 4 on both sides of the back of the support plate 3 with the hanging slots 5 on the surface of the base plate 1. A second bolt 13 passes through the outer surface of the range extender traction frame 12. The shim plate 11 and the range extender traction frame 12 are detachably connected to the support plate 3 through the second bolt 13. Maintenance personnel place the shim plate 11 and the range extender traction frame 12 on the outer surface of the support plate 3, and then complete the limiting by cooperating with the second bolt 13 and the nut. The function of the shim plate 11 is to increase the distance between the range extender traction frame 12 and the support plate 3, so as to avoid the bolts and other components on the surface of the support plate 3 from causing obstruction when the range extender traction frame 12 rotates, and to reserve sufficient movement for the range extender traction frame 12. The first guide sleeve 8 and the second guide sleeve 9 are both provided with external threads and nuts. The first guide sleeve 8 and the second guide sleeve 9 are detachably connected to the support plate 3 through the nuts. The maintenance personnel pass through the first guide sleeve 8 and the second guide sleeve 9 on both sides of the bottom of the support plate 3 respectively, and then lock and limit them with nuts. The limit frame 17 is connected to the support plate 3 by a third bolt 18. The limit frame 17 is detachably connected to the support plate 3 through the third bolt 18. The maintenance personnel install the limit frame 17 on the outer surface of the support plate 3 through the third bolt 18. At the same time, a tension spring 16 is connected between the range extension traction frame 12 and the support plate 3 to complete the assembly of the reset and limit components. The bottom plate 1 is connected to the top two sides and the bottom two sides by mounting plates 2. The bottom plate 1 is assembled with the medical waste cabinet by bolts on the mounting plates 2 on the top two sides and the bottom two sides.

[0041] Example 2:

[0042] Based on the above embodiment one, in order to further improve the structural stability, the following settings are now adopted.

[0043] See Figure 1 , Figure 2 and Figure 5 In the above embodiment, a shim 7 is connected between the base plate 1 and the support plate 3, and a first bolt 6 is connected between the base plate 1, the shim 7 and the support plate 3. Maintenance personnel can add a shim 7 between the base plate 1 and the support plate 3. The shim 7 is used to fill the gap that exists after the base plate 1 and the support plate 3 are combined, so as to avoid the base plate 1 or the support plate 3 from bending and deforming under force after the first bolt 6 is tightened. Then, the maintenance personnel pass the first bolt 6 through the base plate 1, the shim 7 and the support plate 3 and tighten the nut to further enhance the connection stability of the three and reduce the possibility of displacement or falling off of the support plate 3 during the stress process.

[0044] Example 3:

[0045] Based on the above embodiment one, the following settings are now implemented to reduce wear.

[0046] See Figure 4 In the above embodiments, the wear-resistant liner 10 is made of POM, PTFE, MC nylon or PEEK material. The wear-resistant liner 10 can reduce friction and reduce wear between the steel cable and the first guide sleeve 8 and the second guide sleeve 9.

[0047] The implementation principle of this utility model is as follows: First, the base plate 1 is assembled with the medical waste cabinet by bolts through the mounting plates 2 on its top and bottom sides; then, the maintenance personnel first insert the third bolt 18 through the back of the support plate 3 to lay the foundation for the subsequent assembly of the limiting frame 17; then, the maintenance personnel use the hooks 4 on both sides of the back of the support plate 3 to combine with the hanging grooves 5 on the surface of the base plate 1 to complete the assembly; and the maintenance personnel can add a shim 7 between the base plate 1 and the support plate 3. The shim 7 is used to fill the gap after the base plate 1 and the support plate 3 are assembled, to prevent the base plate 1 or the support plate 3 from bending and deforming under force after the first bolt 6 is tightened; then, the maintenance personnel insert the first bolt 6 through the base plate 1, the shim 7 and the support plate 3 and tighten the nut to further enhance the connection stability of the three and reduce the possibility of displacement or detachment of the support plate 3 during the stress process;

[0048] Maintenance personnel place a shim plate 11 and a range extender traction frame 12 on the outer surface of the support plate 3, and then complete the limiting by using a second bolt 13 and a nut. The function of the shim plate 11 is to increase the distance between the range extender traction frame 12 and the support plate 3, so as to avoid the bolts and other components on the surface of the support plate 3 from obstructing the rotation of the range extender traction frame 12, and to reserve sufficient space for the range extender traction frame 12 to move. Next, maintenance personnel insert a first guide sleeve 8 and a second guide sleeve 9 through the bottom sides of the support plate 3, and then lock the limiting by nuts. The first guide sleeve 8 is located to the side and below the first connecting hole 14 at the bottom of the range extender traction frame 12, and the second guide sleeve 9 is located to the side and below the second connecting hole 15, to ensure that the steel wire can transmit power along a reasonable path. Finally, maintenance personnel install a limiting frame 17 on the outer surface of the support plate 3 with a third bolt 18, and at the same time connect a tension spring 16 between the range extender traction frame 12 and the support plate 3 to complete the assembly of the reset and limiting components.

[0049] Subsequently, a power transmission link between the foot pedal and the cabinet door is constructed to prepare for the range extension operation. The maintenance personnel pass the power input steel wire connected to the foot pedal of the medical waste cabinet through the first guide sleeve 8 and fix it to the first connection hole 14 of the range extension traction frame 12. Then, the power output steel wire connected to the cabinet door of the waste cabinet passes through the second guide sleeve 9 and fixes it to the second connection hole 15 of the range extension traction frame 12. During this process, the first and second guide sleeves 9 respectively play a path constraint role for the input and output steel wires, reducing the transmission jam caused by the steel wires deviating in the subsequent power transmission, ensuring that the power can be accurately transmitted to the range extension traction frame 12, and the wear-resistant inner liner 10 can reduce friction and reduce the wear between the steel cable and the first guide sleeve 8 and the second guide sleeve 9.

[0050] In use, medical staff step on the foot pedal of the medical waste cabinet. The power generated by the foot pedal is transmitted to the first connecting hole 14 through the input steel wire, which drives the extended traction frame 12 to rotate around the connection point between it and the raised plate 11. Because the extended traction frame 12 has an L-shaped structure, its rotation trajectory can stably cover the stroke requirements of power input and output. At this time, the distance between the first connecting hole 14 and the center of rotation forms a short lever arm, and the distance between the second connecting hole 15 and the center of rotation forms a long lever arm. The two form a force-multiplying lever structure. The end of the short lever arm only produces a small angle rotation under the pull of the input steel wire. Through the lever arm amplification effect of the lever principle, it simultaneously drives the end of the long lever arm to produce a large angle rotation. The end of the long lever arm then transmits the amplified stroke to the cabinet door through the output steel wire, ultimately achieving the effect of opening the cabinet door at a large angle with a small foot pedal stroke.

[0051] While the extended-range traction frame 12 rotates, the tension spring 16 connected to the support plate 3 is simultaneously stretched and gradually stores elastic potential energy. This process is synchronized with the rotation of the traction frame in real time, ensuring that the tension spring 16 can accurately store energy according to the displacement of the traction frame, thus preparing energy reserves for the automatic reset of the cabinet door. When medical staff finish disposing of the waste and stop stepping on the pedal, the tension of the input steel wire on the first connecting hole 14 disappears, the tension spring 16 loses its external constraint, and begins to release the stored elastic potential energy, pulling the extended-range traction frame 12 to rotate in the opposite direction around the center of rotation to reset. The reset action of the extended-range traction frame 12 is transmitted to the output steel wire through the second connecting hole 15, thereby driving the cabinet door to close automatically without the need for manual operation by medical staff. This reduces additional operation steps, improves ease of use, and ensures that the cabinet door closes in time after medical waste is disposed of, reducing the risk of waste pollution to the environment.

[0052] Furthermore, during the entire rotation and reset process of the range extender traction frame 12, the limit frame 17 plays a crucial constraint role. On the one hand, by abutting against the range extender traction frame 12, the limit frame 17 restricts its maximum rotation angle, preventing the steel wire from being pulled off due to excessive rotation or the cabinet door from colliding and being damaged by the garbage cabinet body. On the other hand, the limit frame 17 can fix the initial position of the range extender traction frame 12, ensuring that the range extender traction frame 12 is in a uniform starting state every time the foot pedal action is triggered. This reduces the problem of decreased foot pedal control accuracy or unstable cabinet door opening and closing range caused by the initial angle deviation of the traction frame, further ensuring the reliability of the entire converter operation.

[0053] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A wire range multiplier converter for a medical waste cabinet, comprising a base plate (1) and a support plate (3), characterized in that: The support plate (3) is connected to the range extender traction frame (12) below the outer surface of the support plate (3) via a padding plate (11). The range extender traction frame (12) has a first connecting hole (14) and a second connecting hole (15) on both sides of its bottom. A tension spring (16) connects the range extender traction frame (12) and the support plate (3). The support plate (3) has a first guide sleeve (8) and a second guide sleeve (9) passing through both sides of its bottom. Both the first guide sleeve (8) and the second guide sleeve (9) have wear-resistant inner linings (10) fixed inside. A limit frame (17) is connected above the outer surface of the support plate (3).

2. The wire range multiplier converter for medical waste bins according to claim 1, characterized in that: The first guide sleeve (8) is located to the side below the first connecting hole (14), and the second guide sleeve (9) is located to the side below the second connecting hole (15).

3. The wire range multiplier converter for medical waste bins according to claim 1, characterized in that: The range extender traction frame (12) is L-shaped and is rotatably connected to the pad plate (11). The range extender traction frame (12) abuts against the limit frame (17).

4. The wire range multiplier converter for medical waste cabinets according to claim 1, characterized in that: The base plate (1) has four hanging slots (5) on both sides of its outer surface, and the support plate (3) has four hooks (4) on both sides of its back. The support plate (3) is detachably connected to the base plate (1) through the four hooks (4) and the four hanging slots (5).

5. The wire range multiplier converter for medical waste cabinets according to claim 3, characterized in that: The outer surface of the range extender traction frame (12) is penetrated by a second bolt (13), and the shim plate (11) and the range extender traction frame (12) are detachably connected to the support plate (3) by the second bolt (13).

6. The wire range multiplier converter for medical waste cabinets according to claim 2, characterized in that: The first guide sleeve (8) and the second guide sleeve (9) are both provided with external threads and nuts, and the first guide sleeve (8) and the second guide sleeve (9) are detachably connected to the support plate (3) through the nuts.

7. The wire range multiplier converter for medical waste cabinets according to claim 3, characterized in that: The limiting frame (17) is connected to the support plate (3) by a third bolt (18), and the limiting frame (17) is detachably connected to the support plate (3) by the third bolt (18).

8. The wire range multiplier converter for medical waste bins according to claim 1, characterized in that: Mounting plates (2) are connected to both the top and bottom sides of the base plate (1).

9. The wire range multiplier converter for medical waste cabinets according to claim 4, characterized in that: A shim block (7) is connected between the base plate (1) and the support plate (3), and a first bolt (6) is connected between the base plate (1), the shim block (7) and the support plate (3).

10. The wire range multiplier converter for medical waste bins according to claim 1, characterized in that: The wear-resistant liner (10) is made of POM, PTFE, MC nylon or PEEK material.