Weighing nursing bed
By setting up a connecting component of the lifting mechanism and the cantilever beam pressure sensor between the nursing bed underframe and the bed frame, dispersing the gravity of the bed frame and the patient, the problem of degradation of the accuracy caused by the deformation of the cantilever beam pressure sensor is solved, and a higher weighing accuracy is achieved.
Patent Information
- Application Number
- CN202422189866.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The existing cantilever beam pressure sensor of nursing beds deforms under long-term pressure, resulting in a decrease in weighing accuracy and the inability to accurately measure weight changes.
Two front and rear-distributed connection components are arranged between the base frame and the bed frame of the care bed. Each connection component includes a lifting mechanism, a connecting plate and two cantilever beam pressure sensors. The lifting mechanism connects the base frame, the connecting plate connects the lifting mechanism, and the cantilever beam pressure sensor is connected to the connecting plate, which disperses the gravity of the bed frame and the patient, and avoids the gravity of the lifting mechanism being directly applied to the cantilever beam pressure sensor.
Effectively reduce the pressure of the cantilever beam pressure sensor, maintain measurement accuracy, avoid deformation influence, and improve weighing accuracy.
Smart Images
Figure CN223126785U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nursing beds, in particular to a weighing nursing bed. Background Art
[0002] Existing nursing beds are generally equipped with a lifting function, and the height of the bed frame is adjusted through a lifting mechanism. Moreover, some lifting nursing beds are also equipped with a weighing function to facilitate weighing patients who have been bedridden for a long time and assist medical staff in judging the physical condition of the patients. For patients who need to accurately measure changes in body weight, such as dialysis patients who may have abnormal fluid accumulation during dialysis, resulting in changes in body weight, the weighing accuracy of existing nursing beds with a weighing function is relatively low. The accuracy of a cantilever beam type pressure sensor is relatively high, and the cantilever beam type pressure sensor can be installed in a nursing bed to achieve accurate weighing. However, the cantilever beam type pressure sensor deforms under the long-term action of a large pressure, resulting in a decrease in the weighing accuracy of the nursing bed. Summary of the Utility Model
[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a weighing nursing bed, which helps to reduce the pressure borne by the cantilever beam type pressure sensor and helps to maintain the measurement accuracy of multiple cantilever beam type pressure sensors.
[0004] The weighing nursing bed according to an embodiment of the utility model includes a chassis, a bed frame and a connecting component. There are at least two connecting components, and the two connecting components are distributed at intervals in the front and back between the chassis and the bed frame;
[0005] Each connecting component includes:
[0006] A lifting mechanism arranged on the chassis;
[0007] A connecting plate connecting the lifting mechanism, and the lifting mechanism drives the connecting plate to move up and down;
[0008] Two cantilever beam type pressure sensors, each of the cantilever beam type pressure sensors includes a fixed part and a cantilever part. The two fixed parts are connected to the left and right sides of the connecting plate, the cantilever part extends out of the connecting plate, and the two cantilever parts are connected to the left and right sides of the bed frame.
[0009] The weighing nursing bed according to the embodiment of the present utility model has at least the following beneficial effects: Two connecting components are arranged at intervals in the front and rear between the chassis and the bed frame of the nursing bed. Each connecting component includes a lifting mechanism, a connecting plate, and two cantilever beam type pressure sensors. The lifting mechanism is connected to the chassis, the connecting plate is connected to the lifting mechanism, and the two cantilever beam type pressure sensors are connected to the connecting plate, so that the four cantilever beam type pressure sensors disperse the gravity of the bed frame and the patient, and can avoid applying the gravity of the two lifting mechanisms to the cantilever beam type pressure sensors, which helps to reduce the pressure borne by the cantilever beam type pressure sensors and helps to maintain the measurement accuracy of the multiple cantilever beam type pressure sensors.
[0010] According to some embodiments of the present utility model, the lifting mechanism includes a lifting seat that moves up and down. The lifting seat is connected to the connecting plate. The left and right sides of the connecting plate extend beyond the left and right sides of the lifting seat, and the two cantilever beam type pressure sensors are respectively located on the left and right sides of the lifting seat.
[0011] According to some embodiments of the present utility model, the fixing part and the cantilever part are respectively located on the front and rear sides of the center of the lifting seat.
[0012] According to some embodiments of the present utility model, the structures of the two connecting components are mirror images of each other.
[0013] According to some embodiments of the present utility model, the bottom surface area of the connecting plate is larger than the top surface area of the lifting seat, and the bottom surface of the connecting plate abuts against the top surface of the lifting seat.
[0014] According to some embodiments of the present utility model, the bed frame includes a cross beam and a base. The cross beam is connected to the base, and the base is connected to the two cantilever parts.
[0015] According to some embodiments of the present utility model, a groove is provided at the top of the base, the cross beam is inserted into the groove, and the bottom surface of the base abuts against the top surfaces of the two cantilever parts.
[0016] According to some embodiments of the present utility model, the base includes a bottom plate, two side plates, and a back plate. The two side plates are connected to the left and right sides of the bottom plate, the back plate is connected to the front side or the rear side of the bottom plate, a groove is provided at the top of each side plate, and the back plate abuts against the cross beam.
[0017] According to some embodiments of the present utility model, the left and right sides of the connecting plate are bent downward and then bent horizontally to form mounting parts, and the fixing part is connected to the mounting parts.
[0018] According to some embodiments of the present utility model, each connecting component further includes a reinforcing plate. The reinforcing plate is connected to the front side or the rear side of the connecting plate, and the reinforcing plate abuts against the mounting part. Description of the Drawings
[0019] Figure 1 is a schematic structural diagram of a weighing nursing bed according to an embodiment of the present utility model;
[0020] Figure 2 is Figure 1 an enlarged schematic view of A in
[0021] Figure 3 is an exploded schematic diagram of a weighing nursing bed according to an embodiment of the present utility model;
[0022] Figure 4 is Figure 3 an enlarged schematic view of B in
[0023] Reference numerals: bed frame 100, cross beam 110, base 120, groove 121, bottom plate 122, side plate 123, back plate 124, connection assembly 200, lifting mechanism 210, lifting seat 211, connecting plate 220, mounting portion 221, cantilever beam type pressure sensor 230, fixing portion 231, cantilever portion 232, reinforcing plate 240. Detailed Description of the Embodiment
[0024] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.
[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as front, rear, upper, lower, axial direction, circumferential direction, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.
[0026] In the description of the present utility model, the meaning of "plurality" is more than two. Understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0027] In the description of the present utility model, it should be noted that terms such as "arrangement", "installation", "connection", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.
[0028] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described below are some embodiments of the present utility model, not all embodiments.
[0029] In the related art, the lifting mechanism of the lifting nursing bed is arranged between the bed frame and the chassis, and the bed frame is driven to lift through the lifting mechanism.
[0030] The cantilever beam type pressure sensor is a commonly used pressure sensor, and its working principle is based on the bending deformation principle of the cantilever beam. The structure of the sensor includes a cantilever beam and a measuring bridge. When an external force acts on the cantilever beam, it will undergo bending deformation, causing the strain sensor in the bridge to generate a certain voltage signal, thereby realizing the measurement of the magnitude of the external force.
[0031] Specifically, when there is pressure on the object to be measured, the cantilever beam will undergo a certain bending deformation, and this deformation degree is proportional to the magnitude of the pressure. At this time, the resistance of the measuring bridge will change to a certain extent, and the voltage signal generated at both ends of the bridge will also change accordingly. By detecting and analyzing this change, the magnitude of the pressure received by the object to be measured can be obtained.
[0032] The advantages of the cantilever beam type pressure sensor are simple structure, high measurement accuracy, good reliability, fast response speed, low power consumption, etc.
[0033] Reference Figures 1 to 4 Describe the weighing nursing bed according to the present utility model, including a chassis, a bed frame 100 and two connecting components 200.
[0034] The two connecting components 200 are distributed at intervals front and back, and the two connecting components 200 are arranged between the chassis and the bed frame 100.
[0035] Each connecting component 200 includes a lifting mechanism 210, a connecting plate 220, and two cantilever beam type pressure sensors 230.
[0036] The lifting mechanism 210 is arranged on the chassis, the lifting mechanism 210 is connected to the connecting plate 220, and the lifting mechanism 210 drives the connecting plate 220 to lift in the up and down direction.
[0037] Each cantilever beam type pressure sensor 230 is provided with a connected fixing part 231 and a cantilever part 232. The fixing parts 231 of the two cantilever beam type pressure sensors 230 are respectively installed on the left and right sides of the connecting plate 220, the cantilever parts 232 extend outward from the connecting plate 220, and the two cantilever parts 232 are respectively connected to the left and right sides of the bed frame 100.
[0038] Two connecting components 200 are arranged at intervals in the front and back between the underframe and the bed frame 100 of the nursing bed. Each connecting component 200 includes a lifting mechanism 210, a connecting plate 220 and two cantilever beam type pressure sensors 230. The lifting mechanism 210 is connected to the underframe, the connecting plate 220 is connected to the lifting mechanism 210, and the two cantilever beam type pressure sensors 230 are connected to the connecting plate 220, so that the four cantilever beam type pressure sensors 230 disperse the gravity of the bed frame 100 and the patient, and can avoid applying the gravity of the two lifting mechanisms 210 to the cantilever beam type pressure sensors 230, which helps to reduce the pressure borne by the cantilever beam type pressure sensors 230 and helps to maintain the measurement accuracy of the multiple cantilever beam type pressure sensors 230.
[0039] In some embodiments, referring to Figure 2 With Figure 4 As shown, the lifting mechanism 210 is provided with a lifting seat 211. The lifting seat 211 is driven by the lifting mechanism 210 and the lifting seat 211 moves up and down in the vertical direction. The lifting seat 211 is connected to the connecting plate 220. The left and right sides of the connecting plate 220 respectively extend out of the left and right sides of the lifting seat 211. The two cantilever beam type pressure sensors 230 are respectively arranged on the left and right sides of the lifting seat 211.
[0040] Arranging the two cantilever beam type pressure sensors 230 on the left and right sides of the lifting seat 211 respectively, and connecting the two cantilever beam type pressure sensors 230 to the left and right sides of the bed frame 100 respectively, helps the center of the bed frame 100 to be closer to the lifting seat 211, makes the pressure received by the four cantilever beam type pressure sensors 230 relatively uniform, and avoids a large pressure being borne by a certain cantilever beam type pressure sensor 230.
[0041] In some embodiments, referring to Figure 2 With Figure 4 As shown, the fixing part 231 and the cantilever part 232 of each cantilever beam type pressure sensor 230 are respectively arranged on the front side and the rear side of the center of the lifting seat 211. For example, the fixing part 231 is on the front side of the center of the lifting seat 211 and the cantilever part 232 is on the rear side of the center of the lifting seat 211; or the fixing part 231 is on the rear side of the center of the lifting seat 211 and the cantilever part 232 is on the front side of the center of the lifting seat 211.
[0042] Arranging the fixing part 231 and the cantilever part 232 on the front side and the rear side of the center of the lifting seat 211 respectively makes the center of the lifting seat 211 closer to the center of the bed frame 100. During the process of the lifting mechanism 210 driving the lifting seat 211 to move up and down in the vertical direction, it helps to balance the pressure received by the four cantilever beam type pressure sensors 230.
[0043] In some embodiments, referring to Figure 1 With Figure 3As shown, the structures of the two connecting components 200 distributed at intervals before and after are mirror images of each other.
[0044] For example, in this embodiment, referring to Figure 1 and Figure 3 As shown, for the two cantilever beam type pressure sensors 230 located in the front, the fixing parts 231 are arranged in front of the cantilever parts 232, and for the two cantilever beam type pressure sensors 230 located in the rear, the fixing parts 231 are arranged behind the cantilever parts 232.
[0045] This helps the four cantilever beam type pressure sensors 230 of the two connecting components 200 to more evenly disperse the pressure of the bed frame 100 and the patient.
[0046] In some embodiments, the top surface area of the lifting seat 211 is smaller than the bottom surface area of the connecting plate 220, and the top surface of the lifting seat 211 abuts against the bottom surface of the connecting plate 220.
[0047] The bottom surface of the connecting plate 220 abuts against the top surface of the lifting seat 211, which helps to reduce the pressure between the connecting plate 220 and the lifting seat 211 by increasing the contact area, and further helps the shape of the connecting plate 220 to be maintained for a long time, avoiding the inclination of the cantilever beam type pressure sensors 230 connected to the connecting plate 220 caused by the deformation of the connecting plate 220 and affecting the measurement accuracy.
[0048] In some embodiments, referring to Figures 2 to 4 As shown, the bed frame 100 is provided with a cross beam 110 and a base 120. The cross beam 110 is connected to the base 120, and the base 120 is connected to the two cantilever parts 232.
[0049] By connecting the cantilever parts 232 of the two cantilever beam type pressure sensors 230 through the base 120, it is avoided that the cross beam 110 directly connects the cantilever parts 232 of the two cantilever beam type pressure sensors 230, and it is also avoided that after the cross beam 110 is squeezed and deformed by the patient, the middle part bends downward, causing the two cantilever beam type pressure sensors 230 to be deformed by pressure. By using the base 120 to separate the cross beam 110 from the two cantilever beam type pressure sensors 230, even if the cross beam 110 is deformed, it will not affect the shape of the base 120, and further avoid the two cantilever beam type pressure sensors 230 being pressed due to the deformation of the cross beam 110.
[0050] In some embodiments, referring to Figure 2 and Figure 4 As shown, a groove 121 is provided at the top of the base 120, the cross beam 110 is limited in the groove 121, and the top surfaces of the two cantilever parts 232 abut against the bottom surface of the base 120.
[0051] The base 120 positions the crossbeam 110 through the groove 121, making the assembly of the crossbeam 110 and the base 120 more convenient. Moreover, the top surface of the cantilever part 232 abuts against the bottom surface of the base 120, reducing the pressure of the base 120 on the cantilever part 232 by increasing the contact area, and preventing the cantilever part 232 from being damaged due to compression.
[0052] In some embodiments, referring to Figure 2 and Figure 4 as shown, the base 120 is provided with a bottom plate 122, two side plates 123, and a back plate 124. The two side plates 123 are respectively connected to the left and right sides of the bottom plate 122. Each side plate 123 is provided with a groove 121 for installing the crossbeam 110 at the top. The crossbeam 110 is welded to the side plate 123. The back plate 124 is connected to the front or rear side of the bottom plate 122, and the back plate 124 abuts against the front or rear side of the crossbeam 110.
[0053] By welding the side plate 123 and the crossbeam 110, the contact area between the crossbeam 110 and the base 120 is reduced. When the crossbeam 110 is bent downward under long-term pressure, since the crossbeam 110 is connected to the two side plates 123, when the middle part of the crossbeam 110 is bent downward, there is a space between the bottom of the crossbeam 110 and the bottom plate 122, which helps to reduce the influence of the deformation of the crossbeam 110 on the base 120. Moreover, by using the back plate 124 to abut against the crossbeam 110, it helps to improve the welding stability of the crossbeam 110 and the side plate 123.
[0054] In some embodiments, the left and right sides of the connecting plate 220 are respectively bent downward and then bent horizontally to form mounting parts 221, and the fixing parts 231 of the two cantilever beam type pressure sensors 230 are respectively mounted on the two mounting parts 221.
[0055] The mounting parts 221 are formed by bending the connecting plate 220 to facilitate the mounting of the fixing parts 231 of the cantilever beam type pressure sensors 230, and the position of the fixing parts 231 is quickly positioned by using the mounting parts 221 during assembly.
[0056] In some embodiments, each connecting component 200 is further provided with a reinforcing plate 240. The reinforcing plate 240 is connected to the front or rear side of the connecting plate 220, and the reinforcing plate 240 abuts against the mounting parts 221.
[0057] The strength of the mounting parts 221 is increased by the reinforcing plate 240, preventing the mounting parts 221 from being deformed due to the compression of the cantilever beam type pressure sensors 230, and avoiding the deformed mounting parts 221 from affecting the measurement accuracy of the cantilever beam type pressure sensors 230.
[0058] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the knowledge possessed by those of ordinary skill in the relevant art.
Claims
1. A weighing nursing bed, characterized in that, It includes a chassis, a bed frame and connecting components. There are at least two of the connecting components, and the two connecting components are distributed at intervals before and after between the chassis and the bed frame; Each of the connecting components includes: A lifting mechanism provided on the chassis; A connecting plate connecting the lifting mechanism, and the lifting mechanism drives the connecting plate to move up and down; Two cantilever beam type pressure sensors. Each of the cantilever beam type pressure sensors includes a fixed part and a cantilever part. The two fixed parts are connected to the left and right sides of the connecting plate, the cantilever part extends outside the connecting plate, and the two cantilever parts are connected to the left and right sides of the bed frame.
2. The weighing care bed according to claim 1, characterized in that, The lifting mechanism includes a lifting seat that moves up and down. The lifting seat is connected to the connecting plate. The left and right sides of the connecting plate extend out of the left and right sides of the lifting seat, and the two cantilever beam type pressure sensors are respectively located on the left and right sides of the lifting seat.
3. The weighing care bed according to claim 2, wherein The fixed part and the cantilever part are respectively located on the front and rear sides of the center of the lifting seat.
4. The weighing care bed according to claim 3, characterized in that, The structures of the two connecting components are mirror images of each other.
5. The weighing nursing bed according to claim 2, characterized in that, The bottom surface area of the connecting plate is larger than the top surface area of the lifting seat, and the bottom surface of the connecting plate abuts against the top surface of the lifting seat.
6. The weighing care bed according to claim 1, characterized in that, The bed frame includes a cross beam and a base. The cross beam is connected to the base, and the base is connected to the two cantilever parts.
7. The weighing care bed according to claim 6, wherein, A groove is provided at the top of the base, the cross beam is inserted into the groove, and the bottom surface of the base abuts against the top surfaces of the two cantilever parts.
8. The weighing care bed according to claim 7, characterized in that, The base includes a bottom plate, two side plates and a back plate. The two side plates are connected to the left and right sides of the bottom plate, the back plate is connected to the front side or the rear side of the bottom plate, a groove is provided at the top of each side plate, and the back plate abuts against the cross beam.
9. The weighing care bed according to claim 1, characterized in that, The left and right sides of the connecting plate are bent downward and then bent horizontally to form mounting parts, and the fixed parts are connected to the mounting parts.
10. The weighing care bed according to claim 9, wherein, Each of the connecting components further includes a reinforcing plate. The reinforcing plate is connected to the front side or the rear side of the connecting plate, and the reinforcing plate abuts against the mounting part.