Electrically powered examination bed

Abstract

The application discloses an electric examination bed, which comprises a bed frame, a driving wheel rotatably arranged at one end of the bed frame, a driven roller arranged at the other end of the bed frame, a mat arranged on the end surface of the bed frame, the one end of the mat being wound on the driving wheel and the other end of the mat being wound on the driven roller, a driving motor installed on the bed frame and connected with the driving wheel to drive the driving wheel to rotate, and a locking assembly installed on the bed frame and comprising an electromagnet and an elastic piece, the electromagnet being used for magnetically attracting the metal plate to fix the metal plate, and the elastic piece being abutted against the metal plate to drive the metal plate to move away from the electromagnet. The driving motor and the electromagnet are cooperated to tension the two ends of the mat, so that the mat is prevented from being deviated when a patient lies on the mat or stands up to pull the mat, medical staff do not need to arrange the mat again, the driving motor can be directly started to replace the mat after the patient is examined, the labor intensity of the medical staff is greatly reduced, and the patient rotation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of examination bed technology, and particularly to an electric examination bed. Background Technology

[0002] The examination bed has disposable sheets at its ends, which need to be changed after each patient's use. In this technology, each end of the examination bed has a drive wheel and a driven roller, with the sheets moving unidirectionally between the drive shaft and the driven rollers. The patient lies on the sheets during the examination. However, after the examination, the patient's movement pulls on the sheets, causing significant shifts. Each time, medical staff must bend over to adjust the sheets before the motor can be turned on to move them to the next patient's position, increasing the workload for medical staff. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes an electric examination bed that can automatically straighten and tighten the drapes, reducing the preparation time for medical staff, thereby reducing the workload of medical staff and improving patient rotation efficiency.

[0004] An electric examination bed according to an embodiment of the present invention includes:

[0005] A bed frame, wherein a drive wheel is rotatably provided at one end of the bed frame and a driven roller is provided at the other end, and a metal plate is fixedly provided on one side of the driven roller;

[0006] A mattress pad is laid on the end face of the bed frame, with one end of the mattress pad wound around the drive wheel and the other end wound around the driven roller;

[0007] A drive motor is mounted on the bed frame, and the drive motor is connected to and drives the drive wheel to rotate.

[0008] A locking assembly is installed on the bed frame. The locking assembly includes an electromagnet and an elastic element. The electromagnet is used to magnetically attract the metal plate to fix the metal plate. The elastic element presses against the metal plate to drive the metal plate to move along the side away from the electromagnet.

[0009] The electric examination bed according to the present invention has at least the following beneficial effects: the combined action of the drive motor and the electromagnet can tighten both ends of the sheet, preventing the sheet from shifting when the patient lies on or gets up. Medical staff can directly turn on the drive motor to change the sheet after the patient's examination without having to rearrange the sheet again, which greatly reduces the labor intensity of medical staff and improves the efficiency of patient rotation.

[0010] According to the electric inspection bed of the present invention, the drive motor has a brake function, and when the electromagnet is de-energized, the electromagnet magnetically attracts the metal plate.

[0011] According to the electric examination bed of the present invention, the bed frame is equipped with a fixed base, the electromagnet is installed on the fixed base, a portion of the electromagnet extends out of the fixed base, and the electromagnet magnetically attracts the metal plate and presses against and fixes the metal plate.

[0012] In the electric inspection bed according to the present invention, the elastic element presses against the middle of the metal plate.

[0013] According to the electric inspection bed of the present invention, a washer is provided on the side of the metal plate facing the elastic member, one side of the washer abuts against the elastic member, and the other side abuts against the metal plate.

[0014] According to the electric inspection bed of the present invention, the locking assembly further includes a plug-in member, which is fixedly connected to the driven roller. The metal plate is provided with a connecting hole for fixing the metal plate and the plug-in member. The projections of the washer and the connecting hole along the centerline direction of the elastic member at least partially overlap.

[0015] According to the electric inspection bed of the present invention, the locking assembly further includes a connector, one side of which is fixedly connected to the metal plate and the other end of which is inserted and fixedly connected to the driven roller.

[0016] According to the electric inspection bed of the present invention, the peripheral wall of the driven roller is provided with a limiting groove, the limiting groove extends along the center line of the driven roller, and the outer wall of the plug is provided with a limiting protrusion corresponding to the limiting groove, the limiting protrusion being slidably disposed in the limiting groove along the center line of the driven roller.

[0017] According to the electric inspection bed of the present invention, the driven roller is provided with a hollow groove, and the end of the plug-in is provided with a tapered protrusion, the tapered protrusion being plugged into and engaged with the hollow groove.

[0018] According to the electric inspection bed of the present invention, the bed frame is further equipped with a sensor, a correction roller and a correction motor. The correction roller is disposed between the driving wheel and the driven roller, and the correction roller is pressed against the pad. The detection end of the sensor is disposed at the end of the correction roller, and the correction motor is used to drive the correction roller to move along the center line direction of the driving wheel.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is an exploded view of the locking assembly of the electric inspection bed according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the first structure of the electric examination bed according to an embodiment of the present invention;

[0023] Figure 3 This is a cross-sectional view of the locking assembly of the electric inspection bed according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the second structure of the electric examination bed according to an embodiment of the present invention.

[0025] Explanation of icon numbers:

[0026] 100 fixed base; 110 electromagnet; 120 elastic element; 130 fixed shaft;

[0027] Connector 200; limiting protrusion 201; tapered protrusion 202; metal plate 210; connecting hole 211; washer 220;

[0028] Driven roller 300; limiting groove 301; hollow groove 302; first pad 310;

[0029] Bed frame 400; drive motor 410; correction motor 420; correction roller 421; sensor 422;

[0030] The drive wheel is 500; the second pad is 510. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. 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.

[0032] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0033] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0035] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The examination bed has disposable sheets at its ends, which need to be changed after each patient's use. In this technology, each end of the examination bed has a drive wheel and a driven roller, with the sheets moving unidirectionally between the drive shaft and the driven rollers. The patient lies on the sheets during the examination. However, after the examination, the patient's movement pulls on the sheets, causing significant shifts. Each time, medical staff must bend over to adjust the sheets before the motor can be turned on to move them to the next patient's position, increasing the workload for medical staff.

[0037] Therefore, such as Figures 1 to 3As shown, the electric examination bed proposed in this invention includes a bed frame 400, a drive wheel 500, a driven roller 300, a sheet, a drive motor 410, and a locking assembly. The drive wheel 500 and driven roller 300 are rotatably mounted on the bed frame 400. The sheet is laid on the end face of the bed frame 400. The drive motor 410 and locking assembly are both mounted on the bed frame 400. The drive motor 410 drives the sheet to move, allowing for sheet replacement for different patients. The locking assembly locks the sheet to prevent it from becoming cluttered after patient use. Specifically, the sheet consists of a first sheet 310 and a second sheet 510 connected to each other. The first sheet 310 is wound around the driven roller 300, and the second sheet 510 is wound around the drive wheel 500. A single-layer sheet for the patient to lie flat is connected between the first sheet 310 and the second sheet 510. Furthermore, the drive motor 410 is connected to and drives the drive wheel 500 to rotate. In addition, a metal plate 210 is fixedly provided on the side of the driven roller 300. The locking assembly includes an electromagnet 110 and an elastic member 120. The electromagnet 110 is used to magnetically attract the metal plate 210 to fix the metal plate 210. The elastic member 120 presses against the metal plate 210 to drive the metal plate 210 to move along the side away from the electromagnet 110.

[0038] In some embodiments of the present invention, such as Figure 1 and Figure 3 As shown, the locking assembly includes a connector 200, one side of which is fixedly connected to the metal plate 210, and the other end is inserted and fixed to the driven roller 300. For example, the connector 200 and the driven roller 300 are interference-fitted after insertion. By providing the connector 200, the driven roller 300 can be easily replaced. It is easy to understand that the fixing method at the driving roller can refer to the fixing method of the driven roller and the connector 200, and thus, both the first pad 310 and the second pad 510 can be easily replaced. Through the cooperation of the electromagnet 110 and the elastic element 120, the connector 200 is fixedly connected or movably connected to the fixed base 100. Furthermore, the combined action of the drive motor 410 and the electromagnet 110 can tighten both ends of the sheet, preventing the sheet from shifting when the patient lies on it or gets up. Medical staff can directly turn on the drive motor 410 to change the sheet after the patient's examination without having to rearrange it again, greatly reducing the workload of medical staff and improving the efficiency of patient rotation.

[0039] It should be noted that by switching between energized and de-energized states, the electromagnet 110 can switch between being magnetic and non-magnetic. When the electromagnet 110 is magnetic, it attracts the metal plate 210. For example, when the electromagnet 110 is demagnetized, the elastic element 120 pushes the driven roller 300 away, causing the driven roller 300 to move relative to the electromagnet 110. The overall structure is simple and allows for convenient control of the driven roller 300 between rotation and locking.

[0040] Specifically, the drive motor 410 has a braking function. When the electromagnet 110 is de-energized, it magnetically attracts the metal plate 210. This effectively reduces the programming difficulty of the control system, aligning with actual applications. For example, when the drive motor 410 is energized, the drive wheel 500 rotates to transport the sheet; correspondingly, when the electromagnet 110 is energized, it does not generate magnetism, and the metal plate 210 can rotate together with the driven roller 300. When the drive motor 410 is de-energized, the brake holds the drive wheel 500 in place; when the electromagnet 110 is de-energized, it generates magnetism and attracts and holds the metal plate 210, locking both ends of the sheet.

[0041] In some embodiments, such as Figure 1 and Figure 3 As shown, the bed frame 400 is equipped with a fixing base 100, and an electromagnet 110 is mounted on the fixing base 100. It is easy to understand that when the magnetism generated by the electromagnet 110 is strong enough, the electromagnet 110, being built into the fixing base 100, can effectively attract the metal plate 210 without being exposed, and the metal plate 210 is pressed and fixed to the fixing base 100. In some embodiments of the present invention, part of the electromagnet 110 extends out of the fixing base 100. The electromagnet 110 magnetically attracts the metal plate 210 and presses it against the metal plate 210 for fixation. This reduces the requirement for the electromagnet 110 to generate magnetic force, and the attraction effect of direct contact between the electromagnet 110 and the metal plate 210 is better, resulting in a more secure connection between the metal plate 210 and the electromagnet 110. Specifically, the fixing base 100 has an opening through which the power supply magnet 110 passes. The electromagnet 110 extends out of the fixing base 100 through the opening. When the electromagnet 110 is magnetic, it attracts the metal plate 210, and the metal plate 210 is pressed and fixed to the electromagnet 110. Furthermore, there are multiple electromagnets 110, which are arranged at intervals along the circumference of the metal plate 210. By attracting the metal plate 210 at multiple points, the strength of the connection between the metal plate 210 and the electromagnets 110 is further improved. For example, there are two electromagnets 110, which are evenly arranged along the circumference of the metal plate 210. Thus, the magnetic forces generated by the two electromagnets 110 work together to attract and move the metal plate 210, resulting in a better effect.

[0042] like Figure 1 and Figure 3As shown, in some embodiments of the present invention, the elastic element 120 presses against the middle of the metal plate 210. When the electromagnet 110 is demagnetized, the elastic element 120 can better push the metal plate 210 away from the electromagnet 110. Optionally, the elastic element 120 is a compression spring, and multiple electromagnets 110 are evenly arranged along the circumference of the compression spring. Further, the fixed base 100 is fixedly mounted with a fixed shaft 130, which passes through the elastic element 120, the metal plate 210, and the connector 200 in sequence. The metal plate 210 and the connector 200 are both rotatably mounted on the fixed shaft 130. The fixed shaft 130 is used to position the elastic element 120, the metal plate 210, and the connector 200. The center lines of the fixed shaft 130, the elastic element 120, the metal plate 210, and the connector 200 coincide, resulting in a more compact structure. In some embodiments, the metal plate 210 and the connector 200 are provided with mating holes in the middle for engaging with the fixed shaft 130. For example, the mating holes and the fixed shaft 130 are positioned by a clearance fit. Further, a washer 220 is provided on the side of the metal plate 210 facing the elastic member 120. The fixed shaft 130 passes through the washer 220, with one side of the washer 220 abutting against the elastic member 120 and the other side abutting against the metal plate 210. Additionally, the metal plate 210 is provided with a connecting hole 211 for fixing the metal plate 210 and the connector 200. The projections of the washer 220 and the connecting hole 211 along the centerline direction of the elastic member 120 at least partially overlap. A washer 220 is used for transition to prevent the metal plate 210 from affecting the pressing effect of the elastic element 120 due to the opening of the connecting hole 211. It should be noted that the connecting hole 211 is opened on the end face of the metal plate 210, and the elastic element 120 may extend into the connecting hole 211, thus affecting the effect of the elastic element 120 in pushing against the metal plate 210. Optionally, the connecting hole 211 is a countersunk hole, and the connector 200 has a threaded hole (not shown in the figure) corresponding to the countersunk hole. The metal plate 210 and the connector 200 are fixed by screws located in the countersunk hole and the threaded hole (not shown in the figure). In particular, since the connecting hole 211 needs to be set to correspond to the end face of the plug 200, when the outer diameter of the plug 200 is small and the elastic member 120 abuts against the middle of the metal plate 210, the projection of the elastic member 120 and the connecting hole 211 along the center line direction of the elastic member 120 may at least partially overlap. In this case, the washer 220 can effectively block the connecting hole 211 and ensure the effect of the elastic member 120 pushing against the metal plate 210.

[0043] In some embodiments of the present invention, such as Figure 1As shown, the driven roller 300 has a limiting groove 301 on its peripheral wall, which extends along the centerline of the driven roller 300. The outer wall of the connector 200 has a limiting protrusion 201 corresponding to the limiting groove 301, which slides along the centerline of the driven roller 300 within the limiting groove 301. Through the insertion and engagement of the limiting protrusion 201 and the limiting groove 301, the driven roller 300 is fixed to the connector 200 in the circumferential direction and can be easily removed in the axial direction to replace different pads. It is easy to understand that the insertion length between the limiting protrusion 201 and the limiting groove 301 is greater than the displacement of the insert 200 towards the electromagnet 110. When the electromagnet 110 magnetically attracts the metal plate 210 and moves, causing the insert 200 to move towards the electromagnet 110, the limiting protrusion 201 still maintains its insertion engagement with the limiting groove 301. Therefore, when the insert 200 is fixed, the driven roller 300 cannot rotate. (Refer to...) Figure 3 The driven roller 300 is provided with a hollow groove 302, and the end of the connector 200 is provided with a tapered protrusion 202, which is inserted and engaged with the hollow groove 302. Thus, the assembly between the driven roller 300 and the connector 200 is more convenient.

[0044] In some embodiments of the present invention, such as Figure 4 As shown, the bed frame 400 is equipped with a sensor 422, a correction roller 421, and a correction motor 420. The correction roller 421 is positioned between the drive wheel 500 and the driven roller 300, and is pressed against the sheet. The detection end of the sensor 422 is located at the end of the correction roller 421. The correction motor 420 drives the correction roller 421 to move along the centerline of the drive wheel 500. There are two sensors 422, one at each end of the correction roller 421. When a sensor 422 detects that the sheet is biased to one side, the correction motor 420 drives the correction roller 421 to move along the other side, returning the sheet to the middle position between the drive wheel 500 and the driven roller 300. This allows the sheet to automatically adjust even after prolonged rotation, eliminating the need for regular adjustments by medical staff, further reducing their workload, and enabling stable and continuous sheet changing operations over extended periods.

[0045] According to the foregoing description of the present invention, the patient lies on the sheet for examination, and during the contact between the patient and the sheet, both the drive motor 410 and the electromagnet 110 are de-energized, locking both ends of the sheet to prevent the sheet from shifting due to the patient's movements. When moving from one patient to the next, medical staff can directly turn on the drive motor 410 and energize the electromagnet 110 without needing to rearrange the sheet again, to roll up the used area of ​​the sheet into the second sheet 510, and to unroll the unused area of ​​the sheet from the first sheet 310 to the end face of the bed frame 400, greatly reducing the workload of medical staff and improving patient rotation efficiency.

[0046] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An electric examination bed, characterized in that, include: A bed frame, wherein a drive wheel is rotatably provided at one end of the bed frame and a driven roller is provided at the other end, and a metal plate is fixedly provided on one side of the driven roller; A mattress pad is laid on the end face of the bed frame, with one end of the mattress pad wound around the drive wheel and the other end wound around the driven roller; A drive motor is mounted on the bed frame, and the drive motor is connected to and drives the drive wheel to rotate. A locking assembly is installed on the bed frame. The locking assembly includes an electromagnet and an elastic element. The electromagnet is used to magnetically attract the metal plate to fix the metal plate. The elastic element presses against the metal plate to drive the metal plate to move along the side away from the electromagnet. The drive motor has a brake function. When the electromagnet is de-energized, the electromagnet magnetically attracts the metal plate, and the elastic element presses against the middle of the metal plate. A washer is provided on one side of the metal plate facing the elastic element. One side of the washer presses against the elastic element, and the other side presses against the metal plate. The locking assembly also includes a plug-in component, which is fixedly connected to the driven roller. The metal plate is provided with a connecting hole, which is used to fix the metal plate and the plug-in component. The projections of the washer and the connecting hole along the centerline direction of the elastic element at least partially overlap.

2. The electric examination bed according to claim 1, characterized in that: The bed frame is equipped with a fixed base, and the electromagnet is installed on the fixed base. Part of the electromagnet extends out of the fixed base, and the electromagnet magnetically attracts the metal plate and presses against the metal plate to fix it.

3. The electric examination bed according to claim 1, characterized in that: The driven roller has a limiting groove on its peripheral wall, which extends along the center line of the driven roller. The outer wall of the connector has a limiting protrusion corresponding to the limiting groove, which slides along the center line of the driven roller in the limiting groove.

4. The electric examination bed according to claim 3, characterized in that: The driven roller is provided with a hollow groove, and the end of the connector is provided with a tapered protrusion, which is inserted into the hollow groove.

5. The electric examination bed according to claim 1, characterized in that: The bed frame is also equipped with a sensor, a correction roller, and a correction motor. The correction roller is located between the drive wheel and the driven roller and is press-fitted to the pad. The detection end of the sensor is located at the end of the correction roller, and the correction motor is used to drive the correction roller to move along the center line of the drive wheel.

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