A turnover bed with weighing function

Abstract

The utility model discloses a kind of turnover bed with weighing function, including bedstead and longitudinal turnover mechanism, the longitudinal turnover mechanism includes longitudinal lifting column, weighing sensor and longitudinal support, the weighing sensor is set on longitudinal lifting column upper end, the longitudinal support includes mounting frame and weighing seat, the weighing seat is connected with the detection end of weighing sensor, the mounting frame is rotatably connected with bedstead, the mounting frame is equipped with two connecting pieces corresponding to each weighing sensor, two connecting pieces are respectively located at the fixed end of weighing sensor and the two sides of detection end connecting line, two connecting pieces are connected with weighing seat by at least one sliding hinge component, so that when bedstead load is transferred to mounting frame, two sides connecting piece generates direction opposite moment of force to weighing seat.The advantage is: eliminate or reduce deflection torque, sensor can more accurately reflect the real weight of load, avoid the detection error caused by torque interference, improve the accuracy and reliability of weighing result.

Description

Technical Field

[0001] This utility model relates to the field of flipping bed technology, specifically to a flipping bed with weighing function. Background Technology

[0002] In medical care, industrial inspection, and other scenarios, longitudinal flipping mechanisms are commonly used to flip objects such as bed frames and carriers, while simultaneously requiring real-time monitoring of the load weight via a weighing sensor. For example, Chinese Patent Publication No. CN222172499U discloses a technical solution entitled "A Longitudinal Flipping Mechanism," in which a bed frame is connected to a longitudinal flipping mechanism. Specifically, the longitudinal support includes a mounting frame and a sliding hinge assembly connected to the mounting frame. The mounting frame is connected to a third weighing sensor via the sliding hinge assembly, and the bed frame and mounting frame are rotatably connected via a transverse flipping axis. The sliding hinge assembly includes a sliding seat fixedly connected to the detection end of the third weighing sensor. The sliding seat includes a sliding plate parallel to a second side plate, and the sliding plate has a second sliding groove. The sliding hinge assembly also includes a cylindrical sliding column fixedly connected to the second side plate. The sliding column slides in conjunction with the second sliding groove, and simultaneously allows for relative rotation between the sliding column and the second sliding groove, forming a reliable sliding hinge.

[0003] In the above structure, the sliding seat is located on the side where the fixed end and the detection end of the third weighing sensor are connected, forming a cantilever structure. This structure has a significant technical defect:

[0004] Generation of deflection torque: Since the extension direction of the sliding seat is consistent with the connection direction of the load cell, when the bed frame bears a force (such as patient weight or workpiece load), the force is transmitted to the load cell through the sliding seat, generating a deflection torque to one side. For example, in a medical bed, when the patient lies on their side, the shift in the center of gravity causes the sliding seat to generate a lateral torque on the sensor. This torque will interfere with the detection results of the load cell. Specifically, the strain gauge inside the sensor will undergo additional deformation due to the torque, leading to signal output deviation; with long-term use, the torque may cause wear on the mechanical structure of the sensor, further reducing accuracy. Utility Model Content

[0005] The purpose of this utility model is to provide a tilting bed with weighing function, which reduces or eliminates the deflection torque when transmitting force by optimizing the connection between the weighing seat and the mounting frame in the longitudinal tilting mechanism.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A tilting bed with weighing function includes a bed frame and a longitudinal tilting mechanism. The longitudinal tilting mechanism includes a longitudinal lifting column, a load cell, and a longitudinal support. The load cell is mounted on the upper end of the longitudinal lifting column. The longitudinal support includes a mounting frame and a weighing seat. The weighing seat is connected to the detection end of the load cell. The mounting frame is rotatably connected to the bed frame. The mounting frame has two connectors for each load cell. The two connectors are located on both sides of the line connecting the fixed end and the detection end of the load cell. The two connectors are connected to the weighing seat through at least one sliding hinge assembly, so that when the load of the bed frame is transmitted to the mounting frame, the two connectors generate torques in opposite directions on the weighing seat.

[0008] In the aforementioned tilting bed with weighing function, the connecting parts on both sides are symmetrically arranged with respect to the connection line between the fixed end and the detection end of the weighing sensor.

[0009] In the aforementioned tilting bed with weighing function, the sliding hinge assembly includes a first sliding member and a second sliding member that slide and cooperate with each other. The first sliding member is disposed on the connecting member, and the second sliding member is disposed on the weighing seat. The first sliding member or the second sliding member can rotate around its own axis, and its axis of rotation is not parallel to the sliding direction.

[0010] In the aforementioned tilting bed with weighing function, one of the first sliding member and the second sliding member is a sliding groove, and the other is a sliding column that can rotate relative to the sliding groove. The sliding direction of the sliding column is parallel to the rotation axis of the mounting frame.

[0011] In the aforementioned tilting bed with weighing function, the second sliding member is a sliding groove, the first sliding member is a sliding column, and the axes of the sliding columns on the two connecting members coincide.

[0012] In the aforementioned tilting bed with weighing function, the sliding groove is a through groove, and the sliding columns on the connecting parts on both sides are coaxial and integrally set.

[0013] In the aforementioned tilting bed with weighing function, the weighing seat is located directly above the line connecting the fixed end and the detection end of the weighing sensor.

[0014] In the aforementioned flipping bed with weighing function, the mounting frame includes a first horizontal plate that is rotatably connected to the bed frame, one end of the connector is fixed to the first horizontal plate, and the other end extends in a direction parallel to the rotation axis of the mounting frame.

[0015] In the aforementioned flip bed with weighing function, the mounting frame further includes a second horizontal plate, which is rotatably connected to the bed frame. The rotation axis of the second horizontal plate and the bed frame is coaxial with the rotation axis of the first horizontal plate and the bed frame. The other end of the connector is fixed to the second horizontal plate.

[0016] In the aforementioned tilting bed with weighing function, there are two weighing sensors that are symmetrically distributed on both sides of the rotation axis of the mounting frame.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] The mounting frame has two connectors for each load cell, located on either side of the line connecting the fixed end and the detection end of the load cell, and connected to the weighing base via a sliding hinge assembly. When the load on the bed frame is transferred to the mounting frame, the connectors on both sides generate torques in opposite directions relative to the weighing base. These two torques cancel each other out, effectively eliminating or significantly reducing the deflection torque. After eliminating or reducing the deflection torque, the sensor can more accurately reflect the true weight of the load, avoiding detection errors caused by torque interference, and improving the accuracy and reliability of the weighing results.

[0019] The above design reduces the impact of torque on the sensor, decreases mechanical wear, thereby extending the sensor's lifespan and reducing equipment maintenance and replacement costs. By optimizing the connection structure, structural deformation and instability caused by torque are reduced, making the entire tilting bed more stable and reliable during operation. It is suitable for scenarios with high equipment stability requirements, such as medical care and industrial inspection. This structure can effectively handle different load distributions and center of gravity shifts. Regardless of load distribution, the opposing torques on both sides can maintain balance, ensuring weighing accuracy and normal equipment operation.

[0020] Furthermore, the connecting parts on both sides are symmetrically arranged with respect to the connection line between the fixed end and the detection end of the load cell. When the load of the bed frame is transmitted to the connecting parts on both sides through the mounting frame, the resulting torques are equal in magnitude and opposite in direction, ensuring that the two torques completely cancel each other out, avoiding residual torque caused by torque imbalance, and further eliminating interference to the sensor.

[0021] Furthermore, the sliding hinge assembly includes a first sliding member and a second sliding member that slide against each other. The first sliding member is disposed on the connecting member, and the second sliding member is disposed on the weighing base. The first or second sliding member can rotate around its own axis, and its axis of rotation is not parallel to the sliding direction. When the bed frame flips or the load shifts, the sliding hinge assembly adjusts the relative position of the connecting member and the weighing base in real time through a combined sliding and rotating motion to ensure that the torque transmission path is always symmetrical.

[0022] Furthermore, one of the first and second sliding components is a sliding groove, and the other is a sliding column. The sliding column can slide along the sliding groove, and the sliding direction is parallel to the rotation axis of the mounting frame. The sliding column can rotate around its own axis, achieving relative rotation with the sliding groove. This design, allowing the sliding column to rotate around its own axis and achieve relative rotation with the sliding groove, enables better adaptation to changes in force and torque in different directions during force transmission. When the bed frame load shifts or flips, the rotation of the sliding column can adjust the force transmission path, reducing additional torque and stress concentration caused by changes in force direction. Because the sliding direction is parallel to the rotation axis of the mounting frame, and the sliding column can rotate, this structure can better adapt to the movement state of the tilting bed during tilting. In scenarios requiring frequent tilting, such as medical care or industrial inspection, this structure can ensure the stability and reliability of the weighing function during tilting, reducing weighing errors caused by structural movement.

[0023] Furthermore, the second sliding member is a sliding groove, and the first sliding member is a sliding column, with the axes of the sliding columns on the two connecting members coinciding. The coincidence of the axes of the sliding columns on the two connecting members ensures that the force direction of the symmetrical load-bearing seats on both sides is consistent. When the load of the bed frame is transferred to the mounting frame, the sliding columns on both sides transmit symmetrical torque through the parallel axis structure, avoiding torque imbalance caused by axis offset and further eliminating interference from the deflection torque symmetrical load-bearing sensor.

[0024] Furthermore, the sliding groove is a through groove, and the sliding columns on both sides of the connecting parts are coaxial and integrally formed. The through groove structure allows the sliding column to pass through from one end of the groove to the other, enabling a rigid connection between the sliding columns of the two connecting parts via the same shaft. This design eliminates the asynchrony problem that might result from the independent movement of the sliding columns on both sides, ensuring completely synchronized torque transmission between the symmetrically weighted connecting parts on both sides and avoiding additional torque caused by differences in sliding column displacement.

[0025] Furthermore, the weighing base is positioned directly above the line connecting the fixed end and the detection end of the load cell. When the weighing base is directly above this line, the load's gravity is vertically transmitted to the detection end of the load cell through the weighing base, with the line of action of the force passing vertically through the line connecting the fixed end and the detection end of the load cell. This design minimizes the deflection torque generated by the horizontal component of the force. If the weighing base is offset to one side of the line, the load will generate a lateral torque on the sensor (such as a lever effect). The direct-above arrangement allows the force to be transmitted directly along the vertical axis of the sensor, avoiding torque interference caused by lever arm offset and improving weighing accuracy.

[0026] Furthermore, the mounting frame includes a first horizontal plate rotatably connected to the bed frame. One end of a connector is fixed to the first horizontal plate, and the other end extends parallel to the rotation axis of the mounting frame. The first horizontal plate rotatably connects to the bed frame, providing a stable support base for the mounting frame. The connector is fixed to the first horizontal plate, forming a rigid link in the load transfer path from the bed frame → first horizontal plate → connector → weighing seat. The connector extends parallel to the rotation axis of the mounting frame, ensuring that the weighing seat maintains a constant distance from the connectors on both sides when the bed frame rotates longitudinally, preventing jamming.

[0027] Furthermore, the mounting frame also includes a second horizontal plate, which is rotatably connected to the bed frame. The rotation axis of the second horizontal plate and the bed frame is coaxial with the rotation axis of the first horizontal plate and the bed frame. The other end of the connector is fixed to the second horizontal plate. The first and second horizontal plates are connected by the connector to form a "U"-shaped or frame-like mounting frame structure. This design expands the original single first horizontal plate support into two-end supports, significantly enhancing the torsional stiffness and bending strength of the mounting frame.

[0028] Furthermore, the weighing sensors are two in number and symmetrically distributed on both sides of the rotation axis of the mounting frame. This dual-sensor layout can flexibly handle changes in the center of gravity of the load. Whether it is a uniform load (such as a patient lying flat) or an eccentric load (such as a patient lying on their side), the sensors on both sides can ensure weighing accuracy through symmetrical force application and data fusion. Attached Figure Description

[0029] Figure 1 This is a perspective view of a tilting bed with weighing function according to the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the longitudinal flipping mechanism in this utility model;

[0031] Figure 3 This is a schematic diagram of the mounting frame in Embodiment 1 of this utility model;

[0032] Figure 4 This is a schematic diagram of the connection structure between the weighing sensor and the weighing base in this utility model;

[0033] Figure 5 This is a schematic diagram of the structure of the weighing sensor in this utility model;

[0034] Figure 6 This is a schematic diagram of the structure of Embodiment 2 of the longitudinal flipping mechanism in this utility model;

[0035] Figure 7 This is a schematic diagram of the mounting frame in Embodiment 2 of this utility model.

[0036] The attached figures are labeled as follows:

[0037] Bed frame 100;

[0038] Longitudinal tilting mechanism 200, longitudinal lifting column 210, weighing sensor 220, fixed end 221, detection end 222, longitudinal bracket 230, mounting frame 231, connector 2311, first horizontal plate 2312, second horizontal plate 2313, weighing seat 232, sliding hinge assembly 240, first sliding member 241, second sliding member 242, mounting seat 250;

[0039] Lateral tilting mechanism 300, first lifting column 310, second lifting column 320, telescopic bracket 330;

[0040] Horizontal flip axis 400;

[0041] Vertical flip axis 500. Detailed Implementation

[0042] A flip bed with weighing function includes a bed frame 100 and a longitudinal flipping mechanism 200. The longitudinal flipping mechanism 200 includes a longitudinal lifting column 210, a weighing sensor 220, and a longitudinal support 230. The weighing sensor 220 is disposed on the upper end of the longitudinal lifting column 210. The longitudinal support 230 includes a mounting frame 231 and a weighing seat 232. The weighing seat 232 is connected to the detection end 222 of the weighing sensor 220. The mounting frame 231 is rotatably connected to the bed frame 100. The mounting frame 231 is provided with two connecting parts 2311 for each weighing sensor 220. The two connecting parts 2311 are respectively located on both sides of the line connecting the fixed end 221 and the detection end 222 of the weighing sensor 220. The two connecting parts 2311 are connected to the weighing seat 232 through at least one sliding hinge assembly 240, so that when the load of the bed frame 100 is transferred to the mounting frame 231, the two connecting parts 2311 generate torques in opposite directions on the weighing seat 232.

[0043] Mounting frame 231 has two connectors 2311 for each load cell 220, located on both sides of the line connecting the fixed end 221 and the detection end 222 of the load cell 220, and connected to the weighing base 232 via a sliding hinge assembly 240. When the load of the bed frame 100 is transferred to the mounting frame 231, the connectors 2311 on both sides generate torques in opposite directions on the weighing base 232. These two torques cancel each other out, thereby effectively eliminating or significantly reducing the deflection torque. After eliminating or reducing the deflection torque, the sensor can more accurately reflect the true weight of the load, avoid detection errors caused by torque interference, and improve the accuracy and reliability of the weighing results.

[0044] The above design reduces the impact of torque on the sensor, decreases mechanical wear, thereby extending the sensor's lifespan and reducing equipment maintenance and replacement costs. By optimizing the connection structure, structural deformation and instability caused by torque are reduced, making the entire tilting bed more stable and reliable during operation. It is suitable for scenarios with high equipment stability requirements, such as medical care and industrial inspection. This structure can effectively handle different load distributions and center of gravity shifts. Regardless of load distribution, the opposing torques on both sides can maintain balance, ensuring weighing accuracy and normal equipment operation.

[0045] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0046] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 limitations on this utility model.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] See Figure 1This utility model provides an embodiment of a flip bed with a weighing function, which includes a bed frame 100 and a transverse flipping mechanism 300. The transverse flipping mechanism 300 includes a first lifting column 310 and a second lifting column 320 arranged along the width direction of the bed frame 100. The bed frame 100 is provided with a transverse flipping shaft 400 arranged along the length direction of the bed frame 100, that is, the transverse flipping shaft 400 is parallel to the length edge of the bed frame 100. The first lifting column 310 and the second lifting column 320 are distributed on both sides of the transverse tilting axis 400 to drive the bed frame 100 to rotate around the transverse tilting axis 400. The first lifting column 310 is equipped with a first transverse weighing sensor, and the second lifting column 320 is equipped with a second transverse weighing sensor. A telescopic bracket 330 connecting the bed frame 100 is installed between the first transverse weighing sensor and the second transverse weighing sensor. The telescopic bracket 330 extends and retracts as the bed frame 100 rotates. The pressure of the bed frame 100 is transmitted to the first transverse weighing sensor and the second transverse weighing sensor through the telescopic bracket 330 to form feedback and realize the weighing of the bed frame 100.

[0050] The telescopic support 330 is equipped with a longitudinal tilting shaft 500, which is perpendicular to the transverse tilting shaft 400. The bed frame 100 is rotatably connected to the telescopic support 330 via the longitudinal tilting shaft 500. One end of the bed frame 100 is equipped with a longitudinal tilting mechanism 200, while the transverse tilting mechanism 300 is located at the other end of the bed frame 100. The longitudinal tilting mechanism 200 includes a longitudinal lifting column 210, a load cell 220, and a telescopic longitudinal support 230. The load cell 220 is located on the upper end of the longitudinal lifting column 210 and is connected to the bed frame 100 via the longitudinal support 230. By cooperating with the transverse tilting mechanism 300, the longitudinal tilting mechanism 200 allows the bed frame 100 to tilt around the longitudinal tilting shaft 500, which is perpendicular to the transverse tilting shaft 400, thereby expanding the tilting angle of the bed frame 100.

[0051] The bed frame can be rotated around the lateral tilting axis 400 by raising or lowering the first lifting column 310 or the second lifting column 320, and can be rotated around the longitudinal tilting axis 500 by raising or lowering the longitudinal lifting column 210. In effect, the first lifting column 310 and the second lifting column 320 control the left and right tilting of the bed frame 100, making it easier for users to get in and out of bed from the side, while the longitudinal lifting column 210 can control the raising or lowering of the headboard or footboard of the bed frame 100.

[0052] The detailed structure of the longitudinal support 230 will be described below. The structure of the longitudinal support 230 includes, but is not limited to, the detailed structures listed below:

[0053] Example 1:

[0054] like Figures 2 to 5As shown, the longitudinal support 230 includes a mounting frame 231 and a weighing base 232. The mounting frame 231 is rotatably connected to the bed frame 100 via a transverse tilting shaft 400, allowing the mounting frame 231 to rotate relative to the bed frame 100 around the axis of the transverse tilting shaft 400. The weighing sensor 220 includes a fixed end 221 and a detection end 222. The fixed end 221 is fixedly connected to the longitudinal lifting column 210. The detection end 222 is used to detect the weight of the bed frame 100 transmitted by the mounting frame 231. The weighing base 232 is fixed on the detection end 222.

[0055] In this embodiment, the mounting frame 231 is provided with two connectors 2311 for each weighing sensor 220. The two connectors 2311 are located on both sides of the line connecting the fixed end 221 and the detection end 222 of the weighing sensor 220, that is, a connector 2311 is provided on one side of the line connecting the fixed end 221 and the detection end 222. The two connectors 2311 are connected to the weighing base 232 through at least one sliding hinge assembly 240. At this time, the two connectors 2311 are also located on both sides of the weighing base 232. When the load of the bed frame 100 is transferred to the mounting frame 231, the two connectors 2311 generate torques in opposite directions on the weighing base 232. These two torques cancel each other out, thereby effectively eliminating or significantly reducing the deflection torque. After eliminating or reducing the deflection torque, the sensor can more accurately reflect the true weight of the load, avoid detection errors caused by torque interference, and improve the accuracy and reliability of the weighing results.

[0056] Furthermore, the connecting pieces 2311 on both sides are symmetrically arranged about the line connecting the fixed end 221 and the detection end 222 of the load cell 220. When the load of the bed frame 100 is transmitted to the connecting pieces 2311 on both sides through the mounting frame 231, the torques generated by the symmetrical arrangement of the connecting pieces 2311 are equal in magnitude and opposite in direction, ensuring that the two torques completely cancel each other out. This avoids residual torque caused by torque imbalance, further eliminates interference to the sensor, and ensures the accuracy of the detection results of the load cell 220. The symmetrical arrangement of the connecting pieces 2311 makes the entire structure more evenly stressed, reduces structural deformation and instability caused by uneven stress, enhances the stability of the longitudinal tilting mechanism 200, and makes the tilting bed more reliable during operation.

[0057] Furthermore, the weighing base 232 is also located directly above the line connecting the fixed end 221 and the detection end 222 of the load cell 220. When the weighing base 232 is directly above the line, the load weight is vertically transmitted to the detection end 222 of the load cell 220 through the weighing base 232, and the line of action of the force passes vertically through the line connecting the fixed end 221 and the detection end 222 of the load cell 220. This design can minimize the deflection torque generated by the horizontal component force. If the weighing base 232 is offset to one side of the line, the load will generate a lateral torque on the sensor (such as a lever effect), while the direct overhead arrangement allows the force to be transmitted directly along the vertical axis of the sensor, avoiding torque interference caused by lever arm offset and improving weighing accuracy. In addition, the above structural arrangement of the weighing base 232 allows the load weight to act directly on the detection end 222 of the load cell 220. The force transmission path is short and direct, reducing energy loss and interference during the force transmission process, ensuring that the load cell 220 can more accurately detect the true weight of the load and improving the reliability of the weighing results.

[0058] Based on the above embodiments, the sliding hinge assembly 240 includes a first sliding member 241 and a second sliding member 242 that slide against each other. The first sliding member 241 is disposed on the connector 2311, and the second sliding member 242 is disposed on the weighing base 232. The first sliding member 241 or the second sliding member 242 can rotate around its own axis, and its axis of rotation is not parallel to the sliding direction, thereby realizing the sliding hinge function. When the bed frame 100 is longitudinally flipped, the relative sliding of the first sliding member 241 and the second sliding member 242 can automatically adapt to the change in distance between the longitudinal lifting column 210 and the longitudinal flipping axis 500 during the longitudinal flipping of the bed frame 100. The rotation of the first sliding member 241 or the second sliding member 242 around its own axis can adjust the change in angle between the longitudinal lifting column 210 and the mounting frame 231, ensuring that the bed frame 100 can be smoothly flipped longitudinally, while also ensuring that the mounting frame 231 applies a downward force to the weighing sensor 220, so that the weighing sensor 220 can obtain accurate weight data.

[0059] Specifically, one of the first sliding member 241 and the second sliding member 242 is a sliding groove, and the other is a sliding column. The sliding column can slide along the length of the sliding groove, and the sliding direction is parallel to the rotation axis of the mounting frame 231. The parallel sliding direction allows the sliding column to slide along the rotation axis when the bed frame 100 is rotated, compensating for the linear displacement difference caused by the rotation of the mounting frame 231. For example, when the bed frame 100 rotates around the longitudinal rotation axis 500, the rotation of the mounting frame 231 causes a change in the horizontal distance between the connecting member 2311 and the weighing seat 232. The sliding column along the sliding groove can eliminate this distance difference, avoiding stress concentration caused by rigid connection and ensuring a smooth torque transmission path. The sliding column can rotate around its own axis, achieving relative rotation with the sliding groove. That is, the sliding column both slides and rotates relative to the sliding groove, thus achieving the function of a sliding hinge through the cooperation of the sliding groove and the sliding column.

[0060] In this embodiment, the second sliding member 242 is a sliding groove formed on the weighing base 232, and the first sliding member 241 is a sliding column disposed on the connecting member 2311, with the axes of the sliding columns on the connecting members 2311 on both sides of the weighing base 232 coinciding. If the friction between the sliding groove and the sliding column is low, the sliding column can be a single column, meaning one end of the sliding column is fixedly connected to the connecting member 2311, and sliding friction occurs between the sliding column and the sliding groove. If the friction between the sliding groove and the sliding column is high, the sliding column can adopt a sleeve structure, allowing rolling friction to occur between the sliding column and the sliding groove, while the sliding column can rotate relative to the connecting member 2311 around its own axis. The alignment of the sliding column axes on the two connecting parts 2311 ensures that the forces applied to the weighing sensor 220 by the two sliding columns are equal, reducing the difference in torque applied to the weighing sensor 220 by the two connecting parts 2311. If the connecting parts 2311 on both sides are symmetrically arranged about the line connecting the fixed end 221 and the detection end 222 of the weighing sensor 220, the torques generated by the connecting parts 2311 on both sides of the weighing sensor 220 can cancel each other out.

[0061] Alternatively, a sliding groove can be provided on each connector 2311, and a sliding column adapted to the corresponding sliding groove can be provided on the weighing seat 232, which can achieve the same effect.

[0062] Furthermore, based on the first sliding member 241 being a sliding column and the second sliding member 242 being a sliding groove, the sliding groove is designed as a through groove. The sliding columns on the two connecting members 2311 are coaxial and integrally set, meaning that a sliding column passing through the through groove is connected to the two connecting members 2311. The sliding groove adopts a through groove structure, and the sliding columns of the two connecting members 2311 are rigidly connected by the same shaft, which can ensure that the torque transmission of the two connecting members 2311 to the weighing seat 232 is completely synchronized. For example, when the load on the bed frame 100 is eccentric, the integrally set sliding column can synchronously transmit the reverse torque on both sides, avoiding the additional torque caused by the displacement difference of the independent sliding columns, ensuring that the deflection torque is completely canceled, and improving the detection accuracy of the weighing sensor 220. The coaxial and integral sliding column structure transforms the connection between the two connecting members 2311 and the weighing seat 232 into a rigid whole, reducing the gaps and shaking caused by the independent movement of the components. When the bed frame 100 is frequently rotated or subjected to dynamic loads, this structure can reduce mechanical wear, extend the service life of the sliding hinge assembly 240, and ensure the long-term stability of the weighing system.

[0063] Based on the above embodiments, the mounting frame 231 has a rectangular frame structure, including a first horizontal plate 2312 and a second horizontal plate 2313 that are rotatably connected to the bed frame 100. The first horizontal plate 2312 and the second horizontal plate 2313 are arranged opposite to each other and are rotatably connected to the bed frame 100 through a transverse flipping shaft 400. The connecting piece 2311 is plate-shaped and its two ends are respectively connected to the first horizontal plate 2312 and the second horizontal plate 2313. In this way, not only does the entire mounting frame 231 have a relatively stable structure, but the connecting piece 2311 is also not easy to deform under stress, which can better transfer the force of the bed frame 100 to the weighing sensor 220.

[0064] In this embodiment, a mounting base 250 is provided on the top of the longitudinal lifting column 210. The left and right sides of the mounting base 250 are symmetrically arranged about the axis of the transverse tilting axis 400. A weighing sensor 220 is provided on each of the left and right sides of the mounting base 250. Therefore, two pairs of connecting parts 2311 are also provided on the mounting frame 231. The two symmetrically distributed weighing sensors 220 can offset the effect of eccentric load through data fusion. For example, when the patient lies on their side, causing the center of gravity to shift, the sensors on both sides detect different pressure values. The system calculates the true weight through the mechanical relationship of the symmetrical layout, avoiding the detection deviation caused by the eccentric load of a single sensor, and improving the accuracy and reliability of the weighing results.

[0065] The tilting bed with weighing function in this embodiment has two symmetrically distributed connecting parts 2311 on the mounting frame 231 for each weighing sensor 220. These connecting parts are connected to the weighing base 232 via a sliding hinge assembly 240, causing the connecting parts 2311 on both sides to generate torques in opposite directions that cancel each other out, eliminating interference from the deflection torque on the sensor. When the bed frame 100 is eccentrically loaded, the torques on both sides can be balanced in real time, ensuring that the weighing sensor 220 is only subjected to vertical pressure, avoiding detection deviations caused by torque.

[0066] Example 2:

[0067] like Figure 6 , Figure 7 As shown, compared to Embodiment 1, the structure of the mounting frame 231 differs. In this embodiment, the mounting frame 231 does not include a second horizontal plate 2313. One end of all connecting pieces 2311 is fixed to the first horizontal plate 2312, and the other end extends in the same direction parallel to the rotation axis of the mounting frame 231. The first horizontal plate 2312 is rotatably connected to the bed frame 100 via a transverse flipping shaft 400. Since the first horizontal plate 2312 is rotatably connected to the bed frame 100, there is no need for an additional second horizontal plate 2313 and related connecting pieces 2311, reducing the number of parts and processing steps. The single horizontal plate design reduces the overall volume and weight of the mounting frame 231, making it suitable for scenarios with high space requirements and avoiding the problem of excessive size caused by a double horizontal plate structure. For scenarios with light loads or relatively uniform load distribution, the structural strength of a single horizontal plate is sufficient, eliminating the need for double horizontal plates to enhance rigidity.

[0068] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A tilting bed with weighing function, comprising a bed frame and a longitudinal tilting mechanism, wherein the longitudinal tilting mechanism includes a longitudinal lifting column, a weighing sensor, and a longitudinal support, the weighing sensor being disposed at the upper end of the longitudinal lifting column, the longitudinal support including a mounting frame and a weighing base, the mounting frame being rotatably connected to the bed frame, and the weighing base being connected to the detection end of the weighing sensor, characterized in that, The mounting frame is equipped with two connectors for each load cell. The two connectors are located on both sides of the line connecting the fixed end and the detection end of the load cell. The two connectors are connected to the weighing seat through at least one sliding hinge assembly, so that when the load of the bed frame is transferred to the mounting frame, the two connectors generate torques in opposite directions to the weighing seat.

2. A tilting bed with weighing function as described in claim 1, characterized in that, The connectors on both sides are symmetrically arranged with respect to the connection between the fixed end and the detection end of the weighing sensor.

3. The turnover bed with a weighing function according to claim 1, characterized in that, The sliding hinge assembly includes a first sliding member and a second sliding member that slide and engage with each other. The first sliding member is disposed on the connector, and the second sliding member is disposed on the weighing base. The first or second sliding member can rotate around its own axis, and its axis of rotation is not parallel to the sliding direction.

4. The turnover bed with a weighing function according to claim 3, characterized in that, One of the first and second sliding components is a sliding groove, and the other is a sliding column. The sliding column can slide along the sliding groove, and the sliding direction is parallel to the rotation axis of the mounting frame. The sliding column can rotate around its own axis to achieve relative rotation with the sliding groove.

5. The turnover bed with a weighing function according to claim 4, characterized in that, The second sliding member is a sliding groove, and the first sliding member is a sliding column. The axes of the sliding columns on the two connecting members coincide.

6. The turnover bed with a weighing function as claimed in claim 5, characterized in that, The sliding groove is a through groove, and the sliding columns on the connecting parts on both sides are coaxial and integrally set.

7. The turnover bed with a weighing function as claimed in claim 1, characterized in that, The weighing base is located directly above the line connecting the fixed end and the detection end of the weighing sensor.

8. The turnover bed with a weighing function as claimed in claim 1, characterized in that, The mounting frame includes a first horizontal plate that is rotatably connected to the bed frame. One end of the connector is fixed to the first horizontal plate, and the other end extends in a direction parallel to the rotation axis of the mounting frame.

9. The turnover bed with a weighing function as claimed in claim 8, characterized in that, The mounting frame also includes a second horizontal plate, which is rotatably connected to the bed frame. The rotation axis of the second horizontal plate and the bed frame is coaxial with the rotation axis of the first horizontal plate and the bed frame. The other end of the connector is fixed to the second horizontal plate.

10. The turnover bed with a weighing function as claimed in claim 1, characterized in that, There are two load cells, which are symmetrically distributed on both sides of the rotation axis of the mounting frame.

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