Multi-functional medical cleaning brush with adjustable bristle hardness

CN224910781UActive Publication Date: 2026-10-30NANJING ZHONGHANG MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202522481419.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-24
Publication Date
2026-10-30
Estimated Expiration
2035-11-24

AI Technical Summary

Technical Problem

[0006]本实用新型的目的是为了解决在清洁不同医疗器具时,不能够根据实际需求进行刷毛硬度调节的问题,而提出的一种可调节刷毛硬度的多功能医用清洁刷

Benefits of technology

[0016]上述方案中,通过齿轮与滑动齿条的啮合传动,控制滑动套筒的升降,当滑动套筒上移时,其筒壁对毛刷本体的刷毛形成有效支撑,缩短其力臂,使刷头整体变硬,从而高效清除器械缝隙中顽固的生物膜与血痂,当需要清洁精密器械时,使滑动套筒下移,刷毛完全伸出则变得柔软,完美避免了划伤风险,解决了传统清洁刷因功能单一而需频繁更换的问题,提升了清洁流程的连续性与操作便捷性。

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Abstract

The utility model provides a multifunctional medical cleaning brush of adjustable bristle hardness belongs to cleaning brush technical field, including handle body, the inside of handle body is provided with push component, push component includes slide rail and sliding rack, connecting plate, rotation axis, gear, the bottom with handle body's inside fixed mounting of slide rail, the inner wall of sliding rack bottom end and the outer surface sliding installation of slide rail. The utility model discloses through the meshing drive of gear and sliding rack, controls the lifting of sliding sleeve, when sliding sleeve moves up, its cylinder wall forms effective support to the bristle of brush body, shortens its arm, makes the whole brush head hard, thereby high -efficiently removes stubborn biofilm and blood scab in instrument gap, when needing to clean precision instrument, makes sliding sleeve move down, and the bristle is completely stretched out and becomes soft, perfect avoids the risk of scratching, solves the problem that traditional cleaning brush needs frequent replacement because of single function.
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Description

Technical Field

[0001] This utility model relates to the field of cleaning brush technology, and in particular to a multifunctional medical cleaning brush with adjustable bristle hardness. Background Technology

[0002] Medical cleaning brushes are professional tools designed specifically for medical environments to achieve safe and efficient cleaning and disinfection. The brush handle is made of high-strength engineering plastic, while the bristles are mostly made of dense and soft nylon or silicone to avoid scratching the surface of precision instruments. The brush head can thoroughly remove bloodstains, tissue residues, and biofilms from complex structures such as instrument joints and grooves. The entire brush body can withstand high-temperature pressure steam sterilization or repeated immersion in chemical disinfectants, meeting hospital infection control requirements. It is an indispensable basic equipment used in sterilization supply centers, operating rooms, and dental departments, and is related to medical safety and infection control effectiveness.

[0003] In existing medical cleaning brushes, after the operator wears protective equipment, they pre-brush the surface of the instrument under running water, and then apply an appropriate amount of multi-enzyme cleaning agent to repeatedly and unidirectionally brush the instrument's teeth, joints, crevices and other complex structures that are difficult to reach, to ensure that bloodstains, tissue residues and other contaminants are completely removed.

[0004] However, in actual use of cleaning brushes in traditional Chinese medicine, various instruments need to be cleaned. The required bristle hardness varies for different medical instruments. As a result, existing medical cleaning brushes cannot adjust the bristle hardness according to different needs. This forces medical staff to frequently change brushes of different hardness, which not only seriously reduces work efficiency and disrupts the continuity of the cleaning process, but also leaves scratches on the surface of instruments, affecting their accuracy and shortening their service life. On the other hand, soft bristles cannot effectively remove stubborn biofilm and blood scabs in the joints and crevices of instruments, leaving a risk of cross-infection and reducing the convenience and efficiency of operation in reality.

[0005] Therefore, this application provides a multifunctional medical cleaning brush with adjustable bristle hardness to meet the needs. Utility Model Content

[0006] The purpose of this invention is to solve the problem that the bristle hardness cannot be adjusted according to actual needs when cleaning different medical instruments, and to propose a multifunctional medical cleaning brush with adjustable bristle hardness.

[0007] The technical problem to be solved by this utility model is to provide a multifunctional medical cleaning brush with adjustable bristle hardness to solve the problems of existing multifunctional medical cleaning brushes with adjustable bristle hardness.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: It includes a handle, and a pushing assembly is provided inside the handle. The pushing assembly includes a slide rail, a sliding rack, a connecting plate, a rotating shaft, and a gear. The bottom of the slide rail is fixedly installed inside the handle, the inner wall of the bottom end of the sliding rack is slidably installed with the outer surface of the slide rail, the bottom surface of the connecting plate is fixedly installed with the inside of the handle, the outer surface of the rotating shaft is rotatably installed with the inner wall of the connecting plate, and the inside of the gear is fixedly installed with the outer surface of the rotating shaft.

[0009] Preferably, the outer surface of the gear meshes with the upper surface of the sliding rack, driving the sliding rack to slide.

[0010] Preferably, through grooves are provided on both sides of the handle, and a connecting frame is slidably installed on the inner wall of the through groove.

[0011] Preferably, the left side of the connecting frame is fixedly installed with the right side of the sliding rack, and the movement of the connecting frame is driven by the meshing of the sliding rack and gear.

[0012] Preferably, a pusher is fixedly installed on the upper surface of the connecting frame, and a sliding sleeve is fixedly installed on the top end of the pusher.

[0013] Preferably, a receiving plate is fixedly installed at the top of the handle, and the upper surface of the receiving plate is in contact with the lower surface of the sliding sleeve.

[0014] Preferably, a brush body is fixedly installed on the upper surface of the receiving plate, and the outer surface of the brush body is slidably connected to the inner wall of the sliding sleeve.

[0015] Compared with the prior art, this utility model has at least the following beneficial effects:

[0016] In the above solution, the lifting and lowering of the sliding sleeve is controlled by the meshing transmission of gears and sliding racks. When the sliding sleeve moves upward, its cylinder wall provides effective support for the bristles of the brush body, shortening its lever arm and hardening the brush head as a whole. This effectively removes stubborn biofilm and blood scabs from the gaps in instruments. When it is necessary to clean precision instruments, the sliding sleeve moves downward, and the bristles are fully extended and become soft, perfectly avoiding the risk of scratches. This solves the problem of traditional cleaning brushes needing to be frequently replaced due to their single function, and improves the continuity and ease of operation of the cleaning process.

[0017] In the above solution, the entire device, including the handle, receiving plate, and movable sliding sleeve, can be made of medical-grade materials that are resistant to high temperature and high pressure. The structure is smooth and has no hard-to-clean corners, supporting disinfection and sterilization, meeting strict hospital infection control requirements, reducing the cost of multiple brush models, optimizing the allocation of medical resources, and providing a safe and economical solution for departments such as the disinfection supply center and operating room. Attached Figure Description

[0018] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 In this utility model Figure 1 A schematic diagram of the structure viewed from below; Figure 3 In this utility model Figure 1 Internal structure diagram; Figure 4 In this utility model Figure 3 An enlarged schematic diagram of the structure at point A.

[0020] [Figure Labels]

[0021] 1. Handle; 2. Receiving plate; 3. Brush body; 4. Pushing assembly; 401. Slide rail; 402. Sliding rack; 403. Connecting plate; 404. Rotating shaft; 405. Gear; 406. Through groove; 407. Connecting frame; 408. Pushing frame; 409. Sliding sleeve.

[0022] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Please see Figure 1-4 A multifunctional medical cleaning brush with adjustable bristle hardness includes a handle 1. A pushing assembly 4 is installed inside the handle 1. The pushing assembly 4 includes a slide rail 401, a sliding rack 402, a connecting plate 403, a rotating shaft 404, and a gear 405. The bottom of the slide rail 401 is fixedly installed inside the handle 1. The inner wall of the bottom end of the sliding rack 402 is slidably installed on the outer surface of the slide rail 401. The bottom surface of the connecting plate 403 is fixedly installed inside the handle 1. The outer surface of the rotating shaft 404 is rotatably installed on the inner wall of the connecting plate 403. The inside of the gear 405 is fixedly installed on the outer surface of the rotating shaft 404. By integrating the slide rail 401, sliding rack 402, connecting plate 403, rotating shaft 404, and gear 405 inside the handle 1, a stable, compact, and reliable transmission foundation is formed. This provides a solid structural guarantee for subsequent precise and smooth bristle hardness adjustment, while ensuring the overall durability of the device.

[0026] Furthermore, the outer surface of gear 405 meshes with the upper surface of sliding rack 402, driving the sliding rack 402 to slide. Through the meshing of gear 405 and sliding rack 402, rotational motion is converted into linear motion, resulting in high transmission efficiency, timely action response, and precise position control. This ensures that the sliding rack 402 can be driven smoothly and reliably during user operation, avoiding slippage or jamming, thereby ensuring the smoothness and stability of the hardness adjustment process.

[0027] Furthermore, through grooves 406 are provided on both sides of the handle 1. A connecting frame 407 is slidably installed on the inner wall of the through groove 406. The through grooves 406 and connecting frames 407 are installed on both sides of the handle 1. The through grooves 406 provide precise guidance and movement space for the connecting frame 407, ensuring that it can only slide smoothly along the preset path.

[0028] Furthermore, the left side of the connecting frame 407 is fixedly installed with the right side of the sliding rack 402. The moving operation of the connecting frame 407 is driven by the meshing of the sliding rack 402 and the gear 405. The fixed connection between the connecting frame 407 and the sliding rack 402 ensures that the linear power generated by the sliding rack 402 under the drive of the gear 405 can be directly transmitted to the connecting frame 407 without loss.

[0029] Furthermore, a pusher frame 408 is fixedly mounted on the upper surface of the connecting frame 407, and a sliding sleeve 409 is fixedly mounted on the top of the pusher frame 408. The sliding sleeve 409 is mounted through the connecting frame 407 and the pusher frame 408, transmitting the internal linear motion to the top sliding sleeve 409, enabling it to perform vertical lifting and lowering movements. The pusher frame 408, acting as a connecting intermediary, has a stable structure and can withstand the stress from repeated operations, ensuring the structural integrity and operational consistency of the sliding sleeve 409 during long-term use.

[0030] Furthermore, a receiving plate 2 is fixedly installed at the top of the handle 1. The upper surface of the receiving plate 2 is in contact with the lower surface of the sliding sleeve 409. By fixing the receiving plate 2 at the top of the handle 1 and ensuring that the receiving plate 2 is in contact with the lower surface of the sliding sleeve 409, the receiving plate 2 not only serves as the mounting base for the brush body 3, but its contact surface with the sliding sleeve 409 also plays an important auxiliary guiding and supporting role, ensuring that the sliding sleeve 409 will not shake during the lifting and lowering process and that the movement trajectory is precise, thereby making the extension and retraction adjustment of the brush bristles more stable and controllable.

[0031] Furthermore, a brush body 3 is fixedly installed on the upper surface of the receiving plate 2. The outer surface of the brush body 3 is slidably connected to the inner wall of the sliding sleeve 409. The brush body 3 is installed on the receiving plate 2 and slidably connected to the sliding sleeve 409. Its beneficial effect is that it directly realizes the core function of adjusting the hardness of the bristles. By sliding the relative sliding of the sliding sleeve 409 and the brush body 3, the effective length of the exposed bristles is changed, which is the key to adapting to different cleaning scenarios and greatly improves the practical value and convenience of the product.

[0032] Working principle: During use, the operator drives the gear 405, which is fixedly mounted on the outer surface of the rotating shaft 404, to rotate. Since the gear 405 meshes with the sliding rack 402, the rotational motion of the gear 405 is converted into the stable linear motion of the sliding rack 402 along the slide rail 401. The movement of the sliding rack 402 then drives the push frame 408 and the sliding sleeve 409 fixed at its top to move vertically up and down through the connecting frame 407. When the sliding sleeve 409 moves upward, the overall size of the brush body 3 decreases, the effective working length of the bristles decreases, and the overall brush head becomes harder. Conversely, when the sliding sleeve 409 moves downward, its sleeve wall gradually protrudes and supports the bristles of the brush body 3, increasing its effective working length, thereby making the overall brush head softer and providing lower scraping force.

[0033] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A multifunctional medical cleaning brush with adjustable bristle hardness, characterized in that: The device includes a handle (1), and a push assembly (4) is provided inside the handle (1). The push assembly (4) includes a slide rail (401), a sliding rack (402), a connecting plate (403), a rotating shaft (404), and a gear (405). The bottom of the slide rail (401) is fixedly installed inside the handle (1). The inner wall of the bottom end of the sliding rack (402) is slidably installed with the outer surface of the slide rail (401). The bottom surface of the connecting plate (403) is fixedly installed with the inside of the handle (1). The outer surface of the rotating shaft (404) is rotatably installed with the inner wall of the connecting plate (403). The inside of the gear (405) is fixedly installed with the outer surface of the rotating shaft (404).

2. The multifunctional medical cleaning brush with adjustable bristle hardness according to claim 1, characterized in that: The outer surface of the gear (405) meshes with the upper surface of the sliding rack (402), driving the sliding rack (402) to slide.

3. The multifunctional medical cleaning brush with adjustable bristle hardness according to claim 1, characterized in that: Both sides of the handle (1) are provided with through grooves (406), and a connecting frame (407) is slidably installed on the inner wall of the through groove (406).

4. A multifunctional medical cleaning brush with adjustable bristle hardness according to claim 3, characterized in that: The left side of the connecting frame (407) is fixedly installed with the right side of the sliding rack (402), and the moving operation of the connecting frame (407) is driven by the meshing of the sliding rack (402) and the gear (405).

5. A multifunctional medical cleaning brush with adjustable bristle hardness according to claim 3, characterized in that: A pusher (408) is fixedly installed on the upper surface of the connecting frame (407), and a sliding sleeve (409) is fixedly installed on the top of the pusher (408).

6. A multifunctional medical cleaning brush with adjustable bristle hardness according to claim 1, characterized in that: A receiving plate (2) is fixedly installed at the top of the handle (1), and the upper surface of the receiving plate (2) is in contact with the lower surface of the sliding sleeve (409).

7. A multifunctional medical cleaning brush with adjustable bristle hardness according to claim 6, characterized in that: The upper surface of the receiving plate (2) is fixedly installed with a brush body (3), and the outer surface of the brush body (3) is slidably connected to the inner wall of the sliding sleeve (409).