Medical accessory fabric releasing device

By designing a limiting mechanism and an automatic adjustment mechanism for the rotating frame, the problem that existing devices cannot adapt to different specifications of base fabrics has been solved. This achieves stable limiting of the base fabric and protection during the conveying process, thereby improving the applicability and stability of the device.

CN224477690UActive Publication Date: 2026-07-10HAIAN MEDIGAUZE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HAIAN MEDIGAUZE CO LTD
Filing Date
2025-07-31
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing medical dressing fabric loosening devices are difficult to adapt to different specifications of fabrics, cannot limit the position according to the width of the fabric, are prone to deviation, and may cause excessive stretching and damage to the fabric during transportation.

Method used

A limiting mechanism including a rotating frame, a motor, a threaded rod, a slider, and an abutment block was designed. It can be adjusted according to the width of the fabric and limited from both sides. With the help of the telescopic rod and the fixed cylinder, it can be adapted to fabrics of different widths. The rotating frame automatically adjusts the angle to avoid pulling. At the same time, the cooperation of the fixed frame, the upper roller, the limiting rod, and the spring ensures that the fabric does not loosen during the conveying process.

Benefits of technology

It achieves stable positioning of base fabrics of different widths, avoids deviation and excessive stretching, improves the applicability of the device, and maintains the stability of the fabric during the conveying process, preventing loosening and wrinkling.

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  • Figure CN224477690U_ABST
    Figure CN224477690U_ABST
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Abstract

This utility model relates to the field of medical device technology, specifically disclosing a medical dressing base fabric loosening device, including a housing. Conveying rollers are rotatably connected to both sides of the outer wall of the housing, and a conveying groove is formed on one side of each conveying roller. A limiting mechanism is provided inside the housing. The limiting mechanism includes a rotating frame rotatably connected to one side of the housing, with a motor embedded at one end. A threaded rod is fixedly installed at the power output end of the motor, and a slider is slidably connected to the outer wall of the threaded rod. This utility model, through the rotating frame, motor, threaded rod, slider, and abutment block, along with a fixed cylinder and telescopic rod, can adjust according to the fabric width, limiting the fabric from both sides to prevent deviation. It is suitable for fabrics of different widths, further improving overall applicability. Simultaneously, the rotating frame can automatically adjust its angle during fabric conveying, preventing excessive pulling and damage to the fabric.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a medical dressing base fabric loosening device. Background Technology

[0002] Medical dressing base fabric is the core material of medical dressings (such as gauze, bandages, adhesive bandages, wound dressings, etc.), and is the basic textile material that carries drugs and performs protective or therapeutic functions. It comes into direct contact with the skin or wound and plays a key role in the structure and function of medical dressings, including support, breathability, moisture absorption, and protection.

[0003] In actual use, the tension of the gauze cannot be automatically loosened or released, which can easily lead to deformation or breakage due to excessive tension, thus causing unnecessary losses or wasted time.

[0004] An existing patent (publication number: CN221190933U) discloses a medical dressing base fabric loosening device. This utility model can adjust the tightness of the moving dressing base fabric through the set loosening component, thereby ensuring its normal delivery. At the same time, when it is forgotten to be adjusted and it is subjected to large tension, the telescopic rod will extend and the spring will stretch, thereby adjusting its tension and preventing it from being deformed, damaged or broken due to large tension.

[0005] To address the aforementioned issues, while existing patents offer solutions that can adjust for excessive tension by loosening components, they are not adaptable to different specifications of base fabrics in practical use. They are also difficult to limit the width of different base fabrics, which can easily lead to base fabric misalignment, making their application too limited. Summary of the Invention

[0006] The purpose of this invention is to provide a medical dressing base fabric loosening device that can be adjusted according to the width of the fabric and limit the fabric from both sides to prevent deviation. It is suitable for fabrics of different widths, further improving the overall applicability. At the same time, the rotating frame can automatically adjust the angle according to the fabric conveying to avoid excessive pulling and damage to the fabric, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a medical excipient base fabric loosening device, comprising a housing, conveying rollers rotatably connected to both sides of the outer wall of the housing, and a conveying groove provided on one side of the conveying rollers on the outer wall of the housing, and a limiting mechanism provided inside the housing;

[0008] The limiting mechanism includes a rotating frame, which is rotatably connected to the inside of the housing. A motor is embedded at one end of the rotating frame, and a threaded rod is fixedly installed at the power output end of the motor. A slider is slidably connected to the outer wall of the threaded rod, and an abutment block is fixedly installed at the bottom end of the slider. A through groove is opened inside the rotating frame.

[0009] Preferably, the outer wall of the abutment block is rotatably connected to a telescopic rod, and the telescopic rod is slidably connected to a fixed cylinder.

[0010] Preferably, the threaded rod is threadedly connected to the slider, and a sliding structure is formed between the slider and the rotating frame.

[0011] Preferably, an electric push rod is fixedly installed at the top of the housing, and a lower pressure frame is fixedly installed at the power output end of the electric push rod, and an abutment roller is rotatably connected inside the lower pressure frame.

[0012] Preferably, a receiving roller is rotatably connected to one side of the rotating frame inside the outer shell, and an abutment mechanism is provided inside the rotating frame.

[0013] Preferably, the abutment mechanism includes a fixed frame, which is fixedly installed on the inner wall of the rotating frame, and an upper roller is rotatably connected inside the fixed frame, with a limit rod extending through the inside of the fixed frame.

[0014] Preferably, a spring is embedded at the bottom of the through groove, and a mounting bracket is fixedly installed at the top of the spring, with a lower roller rotatably connected to the top of the mounting bracket.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model, through a rotating frame, motor, threaded rod, slider and abutment block, and in conjunction with a fixed cylinder and telescopic rod, can be adjusted according to the width of the fabric, limit the fabric from both sides to prevent deviation, and is suitable for fabrics of different widths to further improve the overall applicability. At the same time, the rotating frame can automatically adjust the angle as the fabric is conveyed to avoid excessive pulling and damage to the fabric.

[0017] 2. This utility model, through the cooperation of a fixed frame, an upper roller, a limiting rod, a spring, a mounting frame, and a lower roller, can allow the fixed frame and the limiting rod to self-adjust according to the adjustment of the contact block, avoiding mutual limitation. At the same time, the upper and lower rollers adhere to and rotate to contact the fabric, preventing looseness during the conveying process and avoiding fabric wrinkles. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall structural view of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the outer shell of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the telescopic rod of this utility model;

[0022] Figure 4 This is a schematic diagram of the limiting rod of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Outer shell; 2. Conveying roller; 3. Conveying trough; 4. Limiting mechanism; 401. Rotating frame; 402. Motor; 403. Threaded rod; 404. Slider; 405. Abutting block; 406. Through groove; 407. Fixed cylinder; 408. Telescopic rod; 5. Electric push rod; 6. Lower pressure frame; 7. Abutting roller; 8. Receiving roller; 9. Abutting mechanism; 901. Fixed frame; 902. Upper roller; 903. Limiting rod; 904. Spring; 905. Mounting frame; 906. Lower roller. Detailed Implementation

[0025] 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.

[0026] This utility model provides a technical solution:

[0027] Please see Figures 1 to 3A medical excipient base fabric loosening device includes a housing 1. Conveying rollers 2 are rotatably connected to both sides of the outer wall of the housing 1. A conveying groove 3 is formed on one side of the conveying rollers 2 on the outer wall of the housing 1. A limiting mechanism 4 is provided inside the housing 1. The limiting mechanism 4 includes a rotating frame 401, which is rotatably connected to one side of the inside of the housing 1. A motor 402 is embedded at one end of the rotating frame 401. A threaded rod 403 is fixedly installed at the power output end of the motor 402. A slider 404 is slidably connected to the outer wall of the threaded rod 403. A contact block 405 is fixedly installed at the bottom of 04. A through groove 406 is opened inside the rotating frame 401. A telescopic rod 408 is rotatably connected to the outer wall of the contact block 405. A fixed cylinder 407 is slidably connected to the outside of the telescopic rod 408. A threaded rod 403 is threadedly connected to a slider 404. A sliding structure is formed between the slider 404 and the rotating frame 401. An electric push rod 5 is fixedly installed at the top of the outer shell 1. A lower pressure frame 6 is fixedly installed at the power output end of the electric push rod 5. A contact roller 7 is rotatably connected inside the lower pressure frame 6.

[0028] By adopting the above technical solution, the fabric is first passed through the through groove 406 into the rotating frame 401. Then, the motor 402 drives the threaded rod 403 to rotate, thereby causing the slider 404 to drive the contact block 405 to slide along the through groove 406. The width of the fabric can be adjusted according to the width of the fabric. The limiting from both sides can be used for fabrics of different widths, avoiding deviation during the conveying process. In addition, the fixed cylinder 407 is rotatably connected to the telescopic rod 408, which can extend and retract according to the adjustment of the contact block 405. The rotating frame 401 can also adaptively adjust to the rotation angle of the fabric conveying process, further improving the overall applicability.

[0029] Specifically, such as Figures 2 to 4 As shown, a receiving roller 8 is rotatably connected to one side of the rotating frame 401 inside the outer casing 1. An abutting mechanism 9 is provided inside the rotating frame 401. The abutting mechanism 9 includes a fixed frame 901, which is fixedly installed on the inner wall of the rotating frame 401. An upper roller 902 is rotatably connected inside the fixed frame 901. A limit rod 903 extends through the inside of the fixed frame 901. A spring 904 is embedded at the bottom of the through groove 406. A mounting frame 905 is fixedly installed at the top of the spring 904. A lower roller 906 is rotatably connected to the top of the mounting frame 905.

[0030] By adopting the above technical solution, the telescopic structure of the fixing frame 901 and the limiting rod 903 can adaptively adjust to follow the adjustment of the contact block 405, so that the upper roller 902 is attached to the top of the fabric. With the elastic push of the spring 904, the lower roller 906 connected to the mounting frame 905 is attached to the upper roller 902 and rotates to abut against the fabric, which can prevent the fabric from becoming loose during the fabric conveying process and maintain the stability of the fabric conveying process.

[0031] Working principle: Based on reference document CN221190933U, the fabric, conveyed by the conveying roller 2, passes through the conveying groove 3 and penetrates the outer shell 1, and is conveyed by the abutment roller 7 and the receiving roller 8. The electric push rod 5 adjusts the height of the lower pressure frame 6, which drives the abutment roller 7, thus adjusting the height according to the fabric tension. This is a conventional technique in existing technology and will not be elaborated further. During the fabric conveying process, the fabric passes through the through groove 406 and the rotating frame 401. The motor 402 drives the threaded rod 403, which in turn drives the slider 404 to move the abutment block 405 according to the fabric width. The angle is adjusted, the rotating frame 401 is rotatably connected to the outer shell 1, and the telescopic rod 408 extending from the fixed cylinder 407 of the outer shell 1 is fixed to the abutment block 405, which allows the rotating frame 401 to adaptively adjust with the angle of the fabric conveying. When the abutment block 405 is displaced, the fixed frame 901 slides so that the limit rod 903 enters the fixed frame 901 and adaptively adjusts according to the width. At the same time, with the elastic push of the spring 904, the lower roller 906 and the upper roller 902 connected to the mounting frame 905 are in contact with the fabric to avoid loosening during the conveying process.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A medical dressing base fabric loosening device, comprising a housing (1), characterized in that: The outer walls of the outer shell (1) are rotatably connected to the two sides of the outer wall, and a conveying groove (3) is provided on one side of the conveying roller (2) on the outer wall of the outer shell (1). A limit mechanism (4) is provided inside the outer shell (1). The limiting mechanism (4) includes a rotating frame (401), which is rotatably connected to the inside of the outer shell (1). A motor (402) is embedded at one end of the rotating frame (401). A threaded rod (403) is fixedly installed at the power output end of the motor (402). A slider (404) is slidably connected to the outer wall of the threaded rod (403). An abutment block (405) is fixedly installed at the bottom end of the slider (404). A through groove (406) is opened inside the rotating frame (401).

2. The medical dressing base fabric loosening device according to claim 1, characterized in that: The outer wall of the contact block (405) is rotatably connected to a telescopic rod (408), and the telescopic rod (408) is slidably connected to a fixed cylinder (407).

3. The medical dressing base fabric loosening device according to claim 1, characterized in that: The threaded rod (403) is threadedly connected to the slider (404), and the slider (404) and the rotating frame (401) form a sliding structure.

4. The medical dressing base fabric loosening device according to claim 1, characterized in that: An electric push rod (5) is fixedly installed at the top of the outer shell (1), and a lower pressure frame (6) is fixedly installed at the power output end of the electric push rod (5), and an abutment roller (7) is rotatably connected inside the lower pressure frame (6).

5. The medical dressing base fabric loosening device according to claim 1, characterized in that: A receiving roller (8) is rotatably connected to one side of the rotating frame (401) inside the outer shell (1), and an abutment mechanism (9) is provided inside the rotating frame (401).

6. The medical dressing base fabric loosening device according to claim 5, characterized in that: The abutment mechanism (9) includes a fixed frame (901), which is fixedly installed on the inner wall of the rotating frame (401), and an upper roller (902) is rotatably connected inside the fixed frame (901), and a limit rod (903) extends through the inside of the fixed frame (901).

7. The medical dressing base fabric loosening device according to claim 1, characterized in that: A spring (904) is embedded in the bottom of the through groove (406), and a mounting bracket (905) is fixedly installed on the top of the spring (904). The top of the mounting bracket (905) is rotatably connected to a lower roller (906).