Weight scale for weighing bed
By designing a lever structure on the weighing bed, the problem of convenient weight measurement for bedridden patients has been solved, enabling single-person operation of the weighing device and improving its efficiency and popularity.
Patent Information
- Application Number
- CN202422864089.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-11-25
AI Technical Summary
In the existing technology, it is difficult to measure the weight of critically ill patients and bedridden patients in the ward, and traditional weighing devices require multiple people to cooperate, which is inconvenient to operate, especially the difficulty of moving the hospital bed, which affects the promotion and use of weighing devices.
A weighing scale for weighing beds was designed. It adopts the lever principle and uses a support block and wedge block structure to lift the wheels of the hospital bed by one person, avoiding the process of lifting the bed. The scale is weighed using pressure sensors and support legs.
It enables a single person to conveniently measure their weight while in a hospital bed, reducing the need for manpower, improving the convenience and safety of operation, and promoting the widespread use of weighing devices.
Smart Images
Figure CN223470712U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of medical equipment, especially relates to a body weight scale for weighing bed. BACKGROUND
[0002] When treating bedridden personnel, for example, critically ill patients, the drug dosage and various nutritional supplement amounts are generally determined according to the patient's weight, however, most critically ill patients are in a bedridden state, cannot independently move their bodies or cannot move a large range due to the limitation of treatment equipment, cannot leave the bed to go to the body weight room to measure the body weight, and need to be measured in the ward, so it is difficult to complete the weighing task. At the same time, for patients who can independently move, it is also difficult to complete standing weighing without assistance.
[0003] The skilled person designs a weighing device, including four body weight scales and concentrators connected with the four body weight scales, the body weight scale includes a shell, a pressure sensor arranged in the shell, and a support foot, the shell is a cuboid shell, a trapezoidal groove for placing the bed roller is arranged on the upper surface of the shell, four fixing seats for mounting the pressure sensor are arranged in the shell, the pressure sensor is fixed on the fixing seat, the support foot is fixed on the pressure sensor, the pressure sensor is connected with the network socket through a data line, and the trapezoidal groove is located between the two pairs of fixing seats.
[0004] The body weight scale of the weighing device can weigh the bed and the patient, the concentrator can be connected with each body weight scale through a network cable or a Bluetooth module to collect the body weight data detected by each body weight scale according to the instruction or the set requirement, the patient's body weight can be obtained by subtracting the bed weight after summing, the single data or the average value of the multiple data within a specified time can be collected as required, and then the data can be transmitted to the background for analysis through the output network cable port and / or the GPRS module.
[0005] However, it is found that there are some problems in actual use, that is, the bed or the rehabilitation bed needs to be lifted to each body weight scale, many times, the patient has already been on the bed, the patient needs to get off the bed, the patient is inconvenient to get on and off the bed, the nurses and the caregivers are mostly women, the strength is limited, it is very difficult to lift the bed, some beds are close to the wall, need to be pulled out and then lifted, which is very inconvenient, at least three people are needed to lift the bed, two people lift the bed and one person places the body weight scale.
[0006] The above problems greatly restrict the popularization and use of the weighing device, therefore, it is urgent to develop and design a body weight scale which is convenient to install on the weighing bed. CONTENT OF THE UTILITY MODEL
[0007] The utility model aims at providing a body weight scale for weighing bed, so as to solve the above technical problems.
[0008] A body weight scale for a weighing bed, comprising a pressure sensor and a supporting foot, comprising a U-shaped frame, two adjustable clamping block units, a supporting block, a force applying rod, a connecting rod and two driven wheels, the U-shaped frame comprising a connecting plate and a supporting seat for mounting the pressure sensor connected to the two ends of the front side of the connecting plate, the supporting seat being provided with a groove, the supporting block being provided with a first connecting shaft penetrating and rotatingly arranged on the supporting seat, the supporting block being arranged in the groove of the supporting seat through the first connecting shaft, the upper surface of the supporting seat on both sides of the groove being provided with at least one vertical insertion hole, the adjustable clamping block unit being Z-shaped structure, comprising a vertical plate, a horizontal plate connected to one side of the upper part of the vertical plate and a wedge-shaped block connected to the other side of the lower part of the vertical plate, the wedge-shaped block having an inclined supporting surface gradually inclined downward from the end of the connecting plate to the middle part of the connecting plate, the wedge-shaped blocks of the two Z-shaped structures forming a clamping groove and having a gap between the bottom parts of the wedge-shaped blocks for the bottom part of the wheel to pass through horizontally, the bottom part of the horizontal plate being fixed with at least two insertion rods slidingly inserted and matched with the corresponding vertical insertion holes, the force applying rod being rotatably arranged at the middle part of the rear side of the connecting plate, the two driven wheels being located at the two ends of the rear side of the connecting plate and being fixed on the first connecting shaft, the driven wheels being rotatably arranged on the U-shaped frame through the first connecting shaft, the connecting rod being located between the driven wheels and the force applying rod, the two ends of the connecting rod being rotatably connected to the driven wheels through a second connecting shaft, the middle part of the connecting rod being connected to a third connecting shaft, the middle part of the force applying rod being provided with a long hole extending in the longitudinal direction, the third connecting shaft being movably inserted into the long hole, the supporting block being a cam block and the supporting block being top-pressing matched with the horizontal plate during upward rotation.
[0009] Preferably, the cam block is a column with a 90° central angle and a sector cross section, the first connecting shaft penetrating and being fixed near the center of the cam block, and the edges of the column being transitioned by arcs.
[0010] Preferably, when the second connecting shaft is located directly above the first connecting shaft in the radial direction, the plane of the cam block faces upward and the circumferential arc surface of the cam block faces the middle part of the U-shaped frame.
[0011] Preferably, the force applying rod is rotatably arranged at the middle part of the rear side of the connecting plate through a fourth connecting shaft, and the connecting rod is provided with a positioning clamping groove clamped downward on the fourth connecting shaft when the cam block rotates by 90°.
[0012] The body weight scale for the weighing bed is used in the utility model, when using, the two wedge-shaped blocks of the body weight scale are clamped into the side of the weighing bed wheel to form a clamping groove, so that the weighing bed wheel is located in the clamping groove, then the force applying rod is pressed down with the foot, the force applying rod drives the driven wheel to rotate through the connecting rod, so as to drive the supporting block to rotate, the supporting block rotates upwards around the far end of the first connecting shaft, and the horizontal plate of the adjustable clamping block unit is pressed upwards, the two wedge-shaped blocks lift the weighing bed wheel upwards to separate from the ground, the operation does not need to lift the bed, one person can operate due to the adoption of the lever principle, which is very convenient and labor-saving.
[0013] Further, the cam block is a column with a 90° central angle and a sector cross section, the first connecting shaft is arranged near the center of the cam block, so that the cam block only needs to rotate 90°, the pressing point of the horizontal plate is opposite to the axis of the first connecting shaft in the vertical plane, forming a stable support structure, and the edges of the column are arc transitioned, so that the whole process is smooth and not abrupt.
[0014] Further, the connecting rod is provided with a positioning clamping groove, when the cam block rotates 90°, the positioning clamping groove is clamped downward on the fourth connecting shaft for positioning, which is more stable. DRAWINGS
[0015] Fig. 1 It is a structural schematic view of one angle of the body weight scale in the utility model;
[0016] Fig. 2 It is a structural schematic view of another angle of the body weight scale in the utility model;
[0017] Fig. 3 It is a partial structural schematic view of the body weight scale in the utility model.
[0018] Wherein: 1. Connecting plate; 2, 15. Driven wheel; 3, 10. Supporting seat; 4, 8. Adjustable clamping block unit; 5. Gap; 6. Inclined support surface; 7. Wedge-shaped block; 9. Vertical plate; 11. Insert rod; 12. Groove; 13. Supporting block; 14. Horizontal plate; 16. Force applying rod; 17. Positioning clamping groove; 18. Connecting rod; 19. Fourth connecting shaft; 20. Second connecting shaft; 21. Long hole; 22. Third connecting shaft; 23. First connecting shaft. DETAILED DESCRIPTION
[0019] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0020] Example 1
[0021] A scale for a weighing bed, such as Figs. 1-3 As shown, it includes a pressure sensor (not shown in the figure), a support foot (not shown in the figure), a U-shaped frame, two adjustable block units 4, 8, a support block 13, a force rod 16, a connecting rod 18 and two driven wheels 2, 15. The U-shaped frame includes a connecting plate 1 and support bases 3, 10 integrally connected to the two ends of the front side of the connecting plate. The bottom of the support bases 3, 10 is used to install the pressure sensor. The installation of the pressure sensor and the support foot at the bottom of the support base is a prior art. All existing installation methods are acceptable and will not be described in detail here. A groove 12 is provided on the support base, and a first connecting shaft 23 is provided on the support block 13 to prevent rotation. The first connecting shaft is rotatably set on the support base, and the support block is rotatably set in the groove 12 of the support base through the first connecting shaft. At least one vertical socket is provided on the upper surface of the support base on both sides of the groove. In this embodiment, two vertical sockets are provided. The adjustable block units 4, 8 are of a Z-shaped structure, including a vertical plate 9, a horizontal plate 14 integrally connected to one side of the upper part of the vertical plate, and a wedge block 7 integrally connected to the other side of the lower part of the vertical plate. The wedge block has a self-connecting plate end. An oblique support surface 6 is gradually inclined downward toward the middle of the connecting plate, and two wedge blocks of the Z-shaped structure form a snap-fit groove, and there is a gap 5 between the bottom of the wedge blocks for the bottom of the wheel to pass horizontally. At least two plug rods 11 that are slidably plugged into the corresponding vertical sockets are fixed to the bottom of the horizontal plate. In this embodiment, four plug rods 11 are fixed, and the fixing method can be welding, or threaded holes are set on the top of the plug rods, and bolt step holes with larger upper parts and smaller lower parts are set on the horizontal plate. The bolts pass through the bolt step holes downward from the lower part and are screwed into the threaded holes to achieve fixation.
[0022] The force applying rod 16 is rotatably arranged in the middle of the rear side of the connecting plate 1 through the fourth connecting shaft 19, the two driven wheels 2, 15 are respectively located at the two ends of the rear side of the connecting plate 1 and are fixed on the first connecting shaft 23, the driven wheels are rotatably arranged on the U-shaped frame through the first connecting shaft, the connecting rod 18 is located between the driven wheels and the force applying rod, the two ends of the connecting rod are rotatably connected on the driven wheels through the second connecting shaft 20, the middle of the connecting rod is connected with the third connecting shaft 22, the middle of the force applying rod is provided with a long hole 21 extending along the longitudinal direction, the third connecting shaft 22 is movably inserted in the long hole 21, the supporting block 13 is a cam block and the supporting block is upwardly pressed against the top of the horizontal plate. The cam block can be in various shapes, such as an oval shape, etc. In the embodiment, the cam block is a column with a 90° central angle and a sector cross section, the first connecting shaft is rotatably arranged in the vicinity of the center of the cam block to form a cam structure. In the embodiment, the vicinity of the center refers to the position close to the center and far from the arc edge, and the edges of the column are arc transitioned. When the second connecting shaft is located directly above the first connecting shaft in the radial direction, the plane of the cam block faces upwardly and the circumferential arc surface of the cam block faces the middle of the U-shaped frame, and the connecting rod is provided with a positioning clamping groove 17 downwardly clamped on the fourth connecting shaft when the cam block is turned by 90°.
[0023] The body weight scale for the weighing bed in the embodiment is used as follows: the clamping grooves formed by the two wedge-shaped blocks of the body weight scale are clamped from one side of the weighing bed wheels, the weighing bed wheels are located in the clamping grooves, then the force applying rod is downwardly pressed by the foot, the force applying rod drives the driven wheels to rotate through the connecting rod, thereby driving the supporting block to rotate, the supporting block is upwardly rotated around the distal end of the first connecting shaft and upwardly pushes and presses the horizontal plate of the adjustable clamping block unit, thereby driving the two wedge-shaped blocks to lift the weighing bed wheels upwardly and separate the weighing bed wheels from the ground. The operation does not need to lift the bed and one person can operate it very conveniently and labor-savingly. The cam block is a column with a 90° central angle and a sector cross section, the first connecting shaft is rotatably arranged in the vicinity of the center of the cam block, so that only the cam block is turned by 90°, the downward pressing point of the horizontal plate is directly opposite to the axis of the first connecting shaft in the vertical plane, thereby forming a stable supporting structure, and the edges of the column are arc transitioned, thereby making the whole process smooth and unobtrusive. The connecting rod is provided with the positioning clamping groove, the positioning clamping groove is downwardly clamped on the fourth connecting shaft to be positioned when the cam block is turned by 90°, thereby being more stable.
[0024] The above only describes the preferred embodiment of the utility model and does not limit the utility model, any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A weight scale for a weighing bed comprising a pressure sensor and a support foot, characterized in that: The utility model provides a kind of adjustable pressure sensor support device, including U-shaped frame, two adjustable clamping block units, support block, force bar, connecting rod and two driven wheels, the U-shaped frame includes connecting plate and the support seat for installing pressure sensor of bottom connected in the front side both ends of connecting plate, recess is equipped on the support seat, first connecting shaft is arranged in the support block, the first connecting shaft is rotatably arranged on the support seat, the support block is rotatably arranged in the recess of the support seat by first connecting shaft, the upper surface of the recess both sides of support seat is equipped with at least one vertical insertion hole, the adjustable clamping block unit is Z-shaped structure, including vertical board, horizontal plate connected with the upper side of vertical board and wedge block connected with the lower side of vertical board, the wedge block has gradually downwardly inclined inclined support surface from the end of connecting plate to the middle part of connecting plate, the wedge block of two Z-shaped structures forms a clamping groove and has the gap for the bottom transverse passage of wheel between the bottom of wedge block, the bottom of horizontal plate is fixed at least two insertion rods slidingly inserted into the corresponding vertical insertion hole, the force bar is rotatably arranged in the rear middle part of connecting plate, two driven wheels are located in the rear side both ends of connecting plate respectively and the driven wheel is fixed on the first connecting shaft, the driven wheel is rotatably arranged on the U-shaped frame by first connecting shaft, the connecting rod is between the driven wheel and the force bar, the two ends of connecting rod are rotatably connected on driven wheel by second connecting shaft, the middle part of connecting rod is connected third connecting shaft, the middle part of force bar is equipped with longitudinal long hole, third connecting shaft is movably inserted into the long hole, the support block is cam block and the support block is top pressure matched with horizontal plate during upward rotation.
2. The weighing scale for a weighing bed according to claim 1, characterized in that: The cam block is column with 90 ° central angle and sector cross section, and the first connecting shaft is arranged near the center of the cam block, and the column has arc transition at the corner.
3. The weighing scale for a weighing bed according to claim 2, characterized in that: When the second connecting shaft is located directly above the first connecting shaft in radial direction, the plane of the cam block faces upward and the circumferential arc surface of the cam block faces the middle part of the U-shaped frame.
4. The weighing platform according to any one of claims 1-3, characterized in that: The force bar is rotatably arranged in the rear middle part of the connecting plate by fourth connecting shaft, and the connecting rod is equipped with positioning clamping groove downwardly clamped on the fourth connecting shaft when the cam block rotates by 90 °.