Weighing scale induction order changing device
By setting up an auxiliary roller group and a flipping roller after the output roller of the weighing scale, the problems of unstable film output and hygiene hazards are solved, achieving stable film output and environmentally friendly utilization, and improving hygiene and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE SECOND HOSPITAL AFFILIATED TO WENZHOU MEDICAL COLLEGE
- Filing Date
- 2026-03-24
- Publication Date
- 2026-04-24
AI Technical Summary
Existing weighing scales lack limiting devices during output, making them prone to deformation and displacement, which poses hygiene and health risks. Furthermore, the membrane is prone to loosening and detaching at the end of its use, affecting flattening and collection efficiency.
An auxiliary roller group, including upper and lower rollers and a flipping roller, is set after the output roller of the weighing scale. The lower roller is driven by a cylinder to adjust the spacing, and the motor is started and stopped by a sensor to ensure stable film output. The film is also clamped at the end of the film, and the flipping roller flips the film surface to prevent contamination.
It improves the stability and hygiene of membrane output, avoids membrane waste, maintains membrane flatness and collection efficiency, and reduces hygiene risks and cleaning work.
Smart Images

Figure CN224160125U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical devices, and more specifically to a weight scale sensor for changing orders. Background Technology
[0002] During the physical examination, height and weight are measured using a weighing scale. The examinee will remove their shoes and stand on the scale for measurement. For health and hygiene reasons, a thin film is currently laid on the weighing scale. The film is fed in and output by input and output rollers arranged on both sides of the scale. After each examinee completes the test, the film that they stepped on is transported to the input roller for collection, and a new film is pulled out from the output roller and laid on the weighing scale.
[0003] However, in actual use, the membrane lacks limiting points during output. When the examinee steps on it, moving their feet can easily pull on the membrane, causing deformation and potential misalignment, which may ultimately affect the final winding and collection. On the other hand, towards the end of its use, the membrane may become loose and detached from the original paper tube. As a result, the final membrane cannot maintain a flat state during output and may be stepped on by the examinee. This could lead to the membrane being kicked away, contaminating the weighing scale, posing health and hygiene risks, and requiring personnel to clean it. It also affects the collection of the membrane. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a weight scale sensor changer, which improves the stability of the output position by setting an auxiliary roller group, and is conducive to the full utilization of the end of the film, making it more environmentally friendly and hygienic.
[0005] This utility model provides the following technical solution: a weighing scale sensor for changing orders, including a frame, with input rollers and output rollers respectively arranged on both sides of the frame, and an arrangement space in the middle of the frame for placing the weighing scale. A sensor for sensing the human body is installed at the weighing scale. The input roller is connected to an external motor to provide power. The rolled film is pulled out by the output roller and passes through the weighing scale before being wound into the input roller. The motor is intermittently started and stopped by the sensor feedback to transport the film. An auxiliary roller group is also arranged between the output roller and the arrangement space. The auxiliary roller group includes an upper roller and a lower roller arranged vertically. After the film is pulled out by the output roller, it first passes through the upper roller and the lower roller for clamping. During the transport, the film is output by the rotation of the upper roller and the lower roller.
[0006] As an improvement, the lower roller is driven by a cylinder to move up and down, thereby increasing or decreasing the distance between it and the upper roller.
[0007] As an improvement, a flipping roller is also provided between the input roller and the arrangement space. After the film passes through the weighing scale, it passes over the flipping roller from the top, thereby causing the upper surface of the film that has been stepped on to flip inward and wrap around the input roller.
[0008] As an improvement, the upper end of the turning roller is flush with the lower end of the upper roller.
[0009] As an improvement, the frame includes accommodating cavities on the left and right sides, which are connected by an adjustment plate. The adjustment plate can adjust the width of the arrangement space by changing its length.
[0010] As an improvement, the adjustment plate includes a left plate and a right plate, which are respectively connected to the receiving cavities on both sides. The left plate and the right plate are adjusted in length by means of several adjustment holes set along the width direction and fasteners being removed and installed.
[0011] As an improvement, the adjustment plate includes a left plate and a right plate, which are respectively connected to the receiving cavities on both sides. The left plate and the right plate slide through mutually cooperating tracks set along the width direction to change their length.
[0012] The beneficial effects of this utility model are as follows: by setting an auxiliary roller group after the output roller to provide stability for the output of the film, the stability of the film after output for people to step on and collect is guaranteed; and when the film is about to be used up, the auxiliary roller group can maintain a stable output, so that the film at the end can be fully utilized, avoiding waste, and making it more environmentally friendly and hygienic. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model from a different perspective.
[0014] Figure 2 This is a top view of the first embodiment of the adjustment plate of this utility model.
[0015] Figure 3 This is a top view of the second embodiment of the adjustment plate of this utility model.
[0016] In the diagram: 1. Frame; 11. Arrangement space; 12. Receiving cavity; 13. Adjustment plate; 131. Left plate; 132. Right plate; 133. Adjustment hole; 134. Track; 2. Input roller; 3. Output roller; 4. Sensor; 5. Motor; 6. Auxiliary roller group; 61. Upper roller; 62. Lower roller; 63. Cylinder; 7. Turning roller; 0. Weighing scale. Detailed Implementation
[0017] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0018] like Figure 1 , 2Figure 3 shows a specific embodiment of the weight scale sensor-operated order changer of this utility model. This embodiment includes a frame 1, with an input roller 2 and an output roller 3 respectively arranged on both sides of the frame 1. The middle part of the frame 1 is an arrangement space 11 for placing the weight scale. A sensor 4 for sensing the human body is installed at the weight scale. The input roller 2 is connected to a motor 5 to provide power. The rolled film is pulled out by the output roller 3 and after passing through the weight scale, it is wound into the input roller 2. The feedback from the sensor 4 causes the motor 5 to start and stop intermittently to transport the film. An auxiliary roller group 6 is also arranged between the output roller 3 and the arrangement space 11. The auxiliary roller group 6 includes an upper roller 61 and a lower roller 62 arranged vertically. After the film is pulled out by the output roller 3, it first passes between the upper roller 61 and the lower roller 62 for clamping. During the transport, the film is output by the rotation of the upper roller 61 and the lower roller 62.
[0019] In use, the weighing scale 0 is placed in the arrangement space 11. The film is pulled out from the output roller 3. The film first passes through the auxiliary roller group 6, i.e., between the upper roller 61 and the lower roller 62, and then is laid across the footrest of the weighing scale. The other side is wound back to the input roller 2. In specific implementation, the rolled film can be further placed on a paper tube for both input and output. The paper tube is fitted onto the input roller 2 and the output roller 3. Both the input roller 2 and the output roller 3 are designed to be detachable, which facilitates the loading, unloading, and replacement of the rolled film. After the examinee stands on the weighing scale 0, the examinee can be sensed by the sensor 4. After the examinee leaves, the sensor 4 can no longer sense any obstruction, indicating that the examinee has left. It then sends a signal to the motor 5, which starts to pull the film. The pulling distance is pre-set. After the pulling is completed, the motor 5 stops. The section of film that was originally on the weighing scale 0 and stepped on by the examinee is wound into the input roller 2. The new film is pulled out from the output roller 3 and laid on the weighing scale 0. As a structural optimization of this application, the further added auxiliary roller group 6 plays a role in limiting and stabilizing the film between the output roller 3 and the arrangement space 11 (weighing scale 0). Even if the person being tested moves their feet while standing on the weighing scale 0, it is not easy to pull the film off the output roller 3. This can maintain the orderly output of the film as the film is used less and less, and avoid the film being accidentally kicked away by the feet, which could contaminate the weighing scale and cause health and hygiene hazards. It also avoids the trouble of cleaning and tidying up by personnel, and also avoids the problem of the film being disordered and unable to be properly conveyed to the input roller 2 for collection. Furthermore, at the very end of the film's use, the film will detach from the output roller 3 (paper tube). The film, which has lost its limiting function, can be held by the auxiliary roller group 6, thus ensuring that the film at the end can also be smoothly limited and output for use, thereby achieving the effect of making the most of the material, which is more environmentally friendly and hygienic, and avoids waste. In practice, the upper roller 61 and the lower roller 62 are configured to have a certain clamping force, which can appropriately hinder the movement of the film by the human foot. When the motor 5 drives the input roller 2 to pull and transport the film, the continuous driving force can drive the upper roller 61 and the lower roller 62 to rotate to output the film.
[0020] As an improved specific implementation, the lower roller 62 is driven by the cylinder 63 to move up and down, thereby expanding or narrowing the distance between it and the upper roller 61.
[0021] like Figure 1 As shown, the lower roller 62, which has an adjustable height, can be lowered when the film is replaced, and then raised again after the replacement is completed to properly clamp the film. Furthermore, the cylinder 63 can be adjusted to a suitable pressure so that the lower roller 62 can contact the upper roller 61 and exert a certain clamping force on the film, thereby maintaining the stability of the film's position.
[0022] As an improved specific implementation, a flipping roller 7 is also provided between the input roller 2 and the arrangement space 11. After the film passes through the weighing scale, it passes over the flipping roller 7 from the top, thereby causing the upper surface of the film that has been stepped on to flip inward and wrap around the input roller 2.
[0023] like Figure 1 As shown, in the previous film collection method, the film was directly wound back onto the input roller 2. Therefore, the side that had been stepped on was on the outer surface of the roller structure during winding. Dirt, along with bacteria and fungi, could easily fall as the roller rotated to the bottom, accumulating below the input roller 2. This easily contaminates the frame 1 at the input roller 2, making it difficult to clean and posing significant health and hygiene risks. Furthermore, the surface of the input roller 2 after its last use may have been stepped on by the examinee, posing a risk of contamination when medical personnel replace it. By further installing a flipping roller 7 between the input roller 2 and the arrangement space 11, a supporting position is provided for the film input. Combined with the auxiliary roller group 6 on the other side, this better maintains the flatness of the film at the scale 0. Moreover, the film, after passing around the flipping roller 7 and then winding back onto the input roller 2, effectively flips the previously stepped-on upper surface inwards. Figure 1 As shown, even if there is dirt on its surface, it will not fall onto the frame 1. Instead, it will be sandwiched between the previous layer of film and wound into the rolled film as it is wound, achieving a more hygienic collection effect.
[0024] As an improved specific implementation, the upper end of the flipping roller 7 is flush with the lower end of the upper roller 61.
[0025] like Figure 1 As shown, by setting the position of the above structure, after the lower roller 62 rises to the position, the lower roller 62 and the flipping roller 7 are in a flush position, so a flat film can be formed between the lower roller 62 and the flipping roller 7, and the film can be better laid on the surface of the scale 0.
[0026] As an improved specific implementation, the frame 1 includes accommodating cavities 12 on the left and right sides, and the accommodating cavities 12 on the two sides are connected by an adjusting plate 13. The adjusting plate 13 adjusts the width of the arrangement space 11 by changing its length.
[0027] like Figure 1 As shown, the two-sided cavities 12 are used to accommodate all the structures on both sides. With the top cover, they can achieve a good storage effect, avoid the film from being contaminated, and keep the appearance of the equipment clean. The two-sided cavities 12 are connected by the adjustment plate 13. By changing the length of the adjustment plate 13, the width of the arrangement space 11 can be flexibly adjusted, so as to adapt to different sizes of scales 0, thereby expanding the application compatibility of the changer of this application.
[0028] As an improved specific implementation, the adjusting plate 13 includes a left plate 131 and a right plate 132. The left plate 131 and the right plate 132 are respectively connected to the receiving cavities 12 on both sides. The left plate 131 and the right plate 132 change their length by adjusting their installation position through a plurality of adjusting holes 133 arranged along the width direction and by disassembling and assembling fasteners.
[0029] like Figure 1 As shown, in the first embodiment, the left plate 131 and the right plate 132 are stacked vertically, and the overlapping part has a plurality of adjustment holes 133 along the width direction. After determining the width of the scale 0, the relative positions of the left plate 131 and the right plate 132 are adjusted so that the adjustment holes 133 on both are aligned and then fasteners are installed to lock the structure, so that the scale 0 can be placed for use. Even if the width needs to be adjusted, it can be quickly adjusted by disassembling the fasteners to change the alignment of the adjustment holes 133.
[0030] As an improved specific implementation, the adjusting plate 13 includes a left plate 131 and a right plate 132, which are respectively connected to the receiving cavities 12 on both sides. The left plate 131 and the right plate 132 slide through mutually cooperating tracks 134 arranged in the width direction to change their length.
[0031] like Figure 1 As shown, in the second embodiment, the left plate 131 and the right plate 132 are slidably connected by a track. After determining the width of the scale 0, the left plate 131 and the right plate 132 are adjusted to slide relative to each other along the track 134, and then the scale 0 can be placed for use. If it is necessary to lock the relative position of the left plate 131 and the right plate 132, it can also be achieved by locking the position of the left plate 131 and the right plate 132 or blocking the track 134 using existing buckles, locking parts, etc.
[0032] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.
Claims
1. A weighing scale sensor for changing orders, comprising a frame (1), wherein input rollers (2) and output rollers (3) are respectively arranged on both sides of the frame (1), and the middle part of the frame (1) is a placement space (11) for placing the weighing scale. A sensor (4) for sensing the human body is arranged at the weighing scale. The input rollers (2) are connected to an external motor (5) to provide power. A rolled film is pulled out by the output rollers (3) and wound into the input rollers (2) after passing through the weighing scale. The feedback from the sensor (4) causes the motor (5) to start and stop intermittently to transport the film; characterized in that: An auxiliary roller group (6) is also provided between the output roller (3) and the arrangement space (11). The auxiliary roller group (6) includes an upper roller (61) and a lower roller (62) arranged vertically. After the film is pulled out by the output roller (3), it first passes through the upper roller (61) and the lower roller (62) for clamping. When the film is transported, it is output by the rotation of the upper roller (61) and the lower roller (62).
2. The weighing scale sensor for changing orders according to claim 1, characterized in that: The lower roller (62) is driven by a cylinder (63) to move up and down, thereby expanding or narrowing the distance between it and the upper roller (61).
3. The weighing scale sensor for changing orders according to claim 1, characterized in that: A flipping roller (7) is also provided between the input roller (2) and the arrangement space (11). After the film passes through the weighing scale, it passes over the flipping roller (7) from the top, thereby causing the upper surface of the film that has been stepped on to flip inward and wrap around the input roller (2).
4. The weighing scale sensor for changing orders according to claim 3, characterized in that: The upper end of the turning roller (7) is flush with the lower end of the upper roller (61).
5. The weighing scale sensor for changing orders according to any one of claims 1-4, characterized in that: The frame (1) includes accommodating cavities (12) on the left and right sides. The accommodating cavities (12) on both sides are connected by an adjustment plate (13). The adjustment plate (13) adjusts the width of the arrangement space (11) by changing its length.
6. The weighing scale sensor for changing orders according to claim 5, characterized in that: The adjusting plate (13) includes a left plate (131) and a right plate (132). The left plate (131) and the right plate (132) are respectively connected to the receiving cavities (12) on both sides. The left plate (131) and the right plate (132) can change their length by adjusting their installation position through a number of adjusting holes (133) set along the width direction and by disassembling and assembling fasteners.
7. The weighing scale sensor for changing orders according to claim 5, characterized in that: The adjusting plate (13) includes a left plate (131) and a right plate (132), which are respectively connected to the receiving cavities (12) on both sides. The left plate (131) and the right plate (132) slide through mutually cooperating tracks (134) set along the width direction to change their length.