Rescue flatcar capable of flexibly adjusting lifting angles of bed head and bed tail

Abstract

The rescue flatcar capable of flexibly adjusting the lifting angle of the bed head and the bed tail comprises a bed frame, a first pivoting frame, a second pivoting frame, a mattress and two angle measuring devices, the bed frame comprises a lower support and an upper support, and the lower support and the upper support are arranged in parallel up and down and connected through a plurality of supporting columns. Trundles are arranged at the four corners of the bottom face of the lower support, the first pivoting frame is connected to the tail end of the upper support in a pivoting mode, the second pivoting frame is connected to the head end of the upper support in a pivoting mode, the mattress comprises a bed head part, a bed middle part and a bed tail part, the bed middle part is arranged on the upper support, and the bed head part is arranged on the second pivoting frame and can rotate along with the second pivoting frame. The bed tail part is arranged on the first pivoting frame and can extend the first pivoting frame to rotate, the two angle measuring devices are arranged on the side faces of the upper support and connected with the first pivoting frame / the second pivoting frame so as to measure the pivoting angle of the first pivoting frame / the second pivoting frame, the bottom of the first pivoting frame is connected with a first telescopic assembly, and the bottom of the second pivoting frame is connected with a second telescopic assembly. A first telescopic assembly is arranged at the bottom of the first pivoting frame and used for supporting the first pivoting frame, and a second telescopic assembly is arranged at the bottom of the second pivoting frame and used for supporting the second pivoting frame. And the flexibility and adaptability in the rescue or treatment process are improved.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, and in particular to a rescue flatbed with flexible adjustable elevation angles of the head and foot of a bed. Background Art

[0002] In the fields of medical emergency and daily care, emergency flatbeds are critical equipment for patient transport. Their design and functionality directly impact patient comfort and safety, as well as the efficiency and quality of medical care. Traditional emergency flatbed designs primarily focus on stability, load-bearing capacity, and ease of movement. They generally utilize a fixed structure, placing the patient in a completely flat position for transport. While this design meets basic transport needs to a certain extent, it has exposed numerous limitations in practical applications.

[0003] First, from the perspective of patient comfort, patients with different conditions have different requirements for body positioning. For example, for patients with cardiopulmonary insufficiency, appropriately elevating the head of the bed can reduce the amount of blood returning to the heart, reduce the burden on the heart, and help improve respiratory function. For patients who require drainage or postural expectoration, adjusting the inclination angle of the foot of the bed can promote the discharge of fluid or sputum and reduce the occurrence of complications. However, traditional emergency flatbeds cannot flexibly adjust the inclination angle of the head and foot of the bed according to the patient's specific condition and comfort needs, limiting their application effectiveness in different clinical scenarios.

[0004] Secondly, considering the efficiency and quality of medical care, medical staff often need to frequently adjust the patient's position during emergency treatment or daily care to facilitate examinations, treatment, or rehabilitation training. If the emergency flatbed does not have an angle adjustment function, it means that medical staff will need additional time and manpower to manually move the patient, which not only increases the workload but may also cause secondary injuries to the patient due to improper operation. In addition, the inconvenience of position adjustment may also affect the timeliness and accuracy of medical care, thereby affecting the patient's treatment effect and recovery process.

[0005] Therefore, it is necessary to make further improvements in the prior art. Utility Model Content

[0006] The utility model is intended to solve one of the technical problems in the related art at least to a certain extent. For this reason, the purpose of the utility model is to propose a rescue flatbed that can flexibly adjust the elevation angle of the head of a bed and the foot of a bed.

[0007] To achieve the above objectives, a rescue flatbed with flexible adjustable head and foot elevation angles according to an embodiment of the present invention includes a bed frame, a first pivot frame, a second pivot frame, a mattress, and two angle measuring devices.

[0008] The bed frame includes a lower bracket and an upper bracket. The lower bracket and the upper bracket are arranged in parallel up and down and are connected by a plurality of support columns. Casters are provided at the four corners of the bottom surface of the lower bracket.

[0009] The first pivot frame is pivotally connected to the tail end of the upper bracket.

[0010] The second pivot frame is pivotally connected to the head end of the upper bracket.

[0011] The mattress includes a head portion, a middle portion and a foot portion. The middle portion is arranged on the upper bracket, the head portion is arranged on the second pivot frame and can rotate with the second pivot frame, and the foot portion is arranged on the first pivot frame and can extend the first pivot frame to rotate.

[0012] The two angle measuring devices are respectively arranged on the side surfaces of the upper bracket and connected to the first pivoting frame / the second pivoting frame to measure the pivoting angle of the first pivoting frame / the second pivoting frame.

[0013] The bottom of the first pivot frame is connected to a first telescopic assembly for supporting the first pivot frame, and the bottom of the second pivot frame is provided with a second telescopic assembly for supporting the second pivot frame.

[0014] In addition, the emergency flatbed with flexible adjustable head and foot elevation angles according to the above embodiment of the present invention may also have the following additional technical features:

[0015] According to one embodiment of the present invention, the first telescopic assembly includes two first telescopic arms, two second telescopic arms and a first locking member.

[0016] A first mounting column is transversely provided on the bottom surface of the first pivot frame, and one end of the two first telescopic arms is pivotally connected to the first mounting column.

[0017] A second mounting column is horizontally mounted on the lower bracket, and the second mounting column is located below the first pivot frame. One end of the two second telescopic arms is pivotally connected to the second mounting column, and the other end of the two second telescopic arms is provided with a first slot, and the other ends of the two telescopic arms are inserted into the first slots at the other ends of the two second telescopic arms one by one.

[0018] The first locking member is connected to one end of the two first telescopic arms and is used to lock and fix the first telescopic arms.

[0019] According to an embodiment of the present invention, a plurality of first card slots are provided on a slot wall of the two first slots, and the plurality of first card slots are spaced apart along the depth direction of the first slots, and one end of the first locking member is inserted into one of the first card slots.

[0020] According to an embodiment of the present invention, the first locking member includes two first clamping portions, two driving rods, two extending portions and a first gripping portion.

[0021] The two first clamping parts are arranged on the side surfaces of the two first telescopic arms opposite to the first clamping slots, and the ends of the first clamping parts extend into the first clamping slots opposite to the two first telescopic arms.

[0022] The two first telescopic arms are each provided with an accommodating cavity. The two driving rods are respectively arranged in the accommodating cavity and can move along the length direction of the first telescopic arm. One end of the first clamping portion extends into the accommodating cavity.

[0023] One end of the two extension parts is respectively connected to the driving rod, and the other end extends outside the first telescopic arm.

[0024] The first gripping portion is connected to the other ends of the two extending portions and is used for driving the two driving rods to move.

[0025] When the driving rod moves toward one end of the first telescopic arm, the first clamping portion can be driven to move out of the first clamping slot.

[0026] According to one embodiment of the present invention, a limiting portion is provided at one end of the first holding portion located in the accommodating cavity, the first holding portion is connected to the middle portion of the limiting portion, and an inner side surface of the limiting portion is configured as an inclined surface;

[0027] A pressing portion is provided on a side of the driving rod opposite to the first clamping portion. The pressing portion is formed in an "L" shape. When the driving rod moves, the end of the pressing portion abuts against the inner side of the limiting portion to push the first clamping member to retract into the first telescopic arm.

[0028] Wherein, an extrusion spring piece is provided on the outer surface of the limiting portion, and the outer surface of the extrusion spring piece is pressed against the outer surface of the driving rod.

[0029] According to one embodiment of the present invention, the second telescopic assembly includes two third telescopic arms, two fourth telescopic arms and a second locking member.

[0030] A third mounting post is transversely arranged on the second pivot frame, and one end of the two third telescopic arms is rotatably connected to the third mounting post.

[0031] A fourth mounting column is connected between the two support columns at the rear end of the upper bracket. One end of the two fourth telescopic arms is rotatably connected to the fourth mounting column. The other end of the two fourth telescopic arms is provided with a second slot, and the other end of the two third telescopic arms can be slidably inserted into the second slot.

[0032] The second locking member is connected to the two fourth telescopic arms and is used to lock the fourth telescopic arms.

[0033] According to an embodiment of the present invention, a plurality of second slots are provided on the surface of the third telescopic arm, and the plurality of second slots are spaced apart along the length direction of the third telescopic arm, and one end of the second locking member extends into one of the second slots.

[0034] According to an embodiment of the present invention, the second locking member includes two second clamping portions, two connecting blocks and a second gripping portion.

[0035] The upper surfaces of the two fourth telescopic arms are each provided with a mounting groove, which obliquely extends into the second slot, and the two second clamping members are respectively slidably arranged in the mounting groove.

[0036] The two connecting blocks are respectively arranged on the surfaces of the two fourth telescopic arms, and the bottom surfaces are connected to the tail ends of the second holding parts.

[0037] The two ends of the second gripping portion are respectively connected to the surfaces of the two connecting blocks.

[0038] Among them, the bottom surface of the installation groove is provided with a groove part, and a reset spring is provided in the groove part. The bottom surface of the second clamping part is provided with a driving part, and the lower end of the driving part is connected to one end of the reset spring.

[0039] According to an embodiment of the present invention, both angle measuring devices include a disk, a rotating shaft and a pointer.

[0040] The disc body is arranged on the side surface of the upper bracket, and scale lines are arranged on the surface of the disc body along its circumference.

[0041] The rotating shaft is arranged at the center of the disk body, and one end of the rotating shaft is connected to the rotating shaft of the first pivot frame / the second pivot frame.

[0042] One end of the pointer is connected to the rotating shaft, and the other end extends to the scale line, and the pointer can rotate along the rotating shaft.

[0043] According to an embodiment of the present invention, two extension arms are provided at the head end and the tail end of the upper bracket. The two extension arms are arranged opposite to each other on the left and right sides, and the ends of the extension arms are provided with connection holes.

[0044] The first pivot frame and the second pivot frame are both provided with a push handle on the side facing away from each other. Both ends of the push handle are penetrated by connecting bolts. When the first pivot frame / the second pivot frame is pivoted to a horizontal state, the ends of the connecting bolts can move into the connecting holes.

[0045] According to the embodiment of the present invention, the rescue flatbed with flexible adjustment of the head and foot elevation angles is designed. By designing a first pivot frame and a second pivot frame connected to the front and rear ends of the upper bracket of the bed frame, respectively, and equipped with corresponding telescopic components for support, the head and foot of the bed can be independently and flexibly adjusted in angle. This design meets the needs of adjusting the patient's position in different medical scenarios, improving the flexibility and adaptability during rescue or treatment. The adjustability of the head and foot of the bed allows medical staff to adjust the angle of the bed according to the patient's specific conditions (such as respiratory and circulatory function), thereby reducing patient discomfort, promoting recovery, and improving patient comfort. The provision of an angle measuring device allows medical staff to intuitively understand the specific angles of the head and foot of the bed, facilitating precise adjustment, while also simplifying the operation process and improving work efficiency.

[0046] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0048] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the utility model;

[0049] Figure 2 This is another schematic diagram of the overall structure in an embodiment of the present utility model;

[0050] Figure 3 This is a state diagram of the overall structure change in the embodiment of the utility model;

[0051] Figure 4 This is a schematic diagram of the overall structure of the first telescopic component in an embodiment of the present utility model;

[0052] Figure 5 This is a schematic diagram of the overall structure of the second telescopic component in an embodiment of the present utility model;

[0053] Figure 6 This is a partial cross-sectional view of the first telescopic assembly in an embodiment of the present utility model;

[0054] Figure 7 This is a partial cross-sectional view of the second telescopic assembly in the embodiment of the present utility model;

[0055] Figure 8This is an embodiment of the utility model Figure 6 Enlarged view of part A;

[0056] Figure 9 This is an embodiment of the utility model Figure 7 Enlarged view of part B;

[0057] Figure 10 It is a schematic diagram of the overall structure of the angle measuring device in the embodiment of the present utility model.

[0058] Figure Number:

[0059] Bed frame 10;

[0060] Lower bracket 11;

[0061] Upper bracket 12;

[0062] Extension arm 121;

[0063] connecting hole 122;

[0064] Support column 13;

[0065] Casters 14;

[0066] a first pivot frame 20;

[0067] First telescopic assembly 21;

[0068] First telescopic arm 211;

[0069] a second telescopic arm 212;

[0070] First slot 213;

[0071] First card slot 2131;

[0072] a first locking member 214;

[0073] First holding portion 2141;

[0074] Drive rod 2142;

[0075] extension 2143;

[0076] a first grip portion 2144;

[0077] Limiting portion 2145;

[0078] Extrusion portion 2146;

[0079] squeezed shrapnel 2147;

[0080] a first mounting post 22;

[0081] Second mounting post 23;

[0082] Second pivot frame 30;

[0083] A second telescopic assembly 31;

[0084] a third telescopic arm 311;

[0085] Second card slot 3111;

[0086] fourth telescopic arm 312;

[0087] Second slot 313;

[0088] a second locking member 314;

[0089] Second holding portion 3141;

[0090] Connecting block 3142;

[0091] Second grip portion 3143;

[0092] Mounting slot 3144;

[0093] groove portion 3145;

[0094] Return spring 3146;

[0095] Drive unit 3147;

[0096] a third mounting post 32;

[0097] Fourth mounting post 33;

[0098] Mattress 40;

[0099] Bed head 41;

[0100] middle of bed 42;

[0101] foot of bed 43;

[0102] Angle measuring device 50;

[0103] Plate 51;

[0104] Rotating shaft 52;

[0105] Pointer 53;

[0106] Push hand part 60;

[0107] Connecting bolt 61.

[0108] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0109] The following describes in detail embodiments of the present invention, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0110] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0111] 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0112] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0113] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0114] The rescue flatbed with flexible adjustable elevation angles of the head and foot of the bed according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0115] Reference Figures 1 to 10 As shown, the rescue flatbed with flexible adjustable elevation angles of the head and foot of the bed provided in an embodiment of the present invention includes a bed frame 10 , a first pivot frame 20 , a second pivot frame 30 , a mattress 40 and two angle measuring devices 50 .

[0116] The bed frame 10 includes a lower bracket 11 and an upper bracket 12 . The lower bracket 11 and the upper bracket 12 are arranged in parallel up and down and connected by a plurality of support columns 13 . Casters 14 are provided at the four corners of the bottom surface of the lower bracket 11 .

[0117] The first pivot frame 20 is pivotally connected to the rear end of the upper bracket 12 .

[0118] The second pivot frame 30 is pivotally connected to the front end of the upper bracket 12 .

[0119] The mattress 40 includes a head portion 41, a middle portion 42 and a foot portion 43. The middle portion 42 is arranged on the upper bracket 12, the head portion 41 is arranged on the second pivot frame 30 and can rotate with the second pivot frame 30, and the foot portion 43 is arranged on the first pivot frame 20 and can extend the first pivot frame 20 to rotate.

[0120] The two angle measuring devices are respectively disposed on the side surfaces of the upper bracket 12 and connected to the first pivoting frame 20 / the second pivoting frame 30 to measure the pivoting angles of the first pivoting frame 20 / the second pivoting frame 30 .

[0121] A first telescopic assembly 21 is connected to the bottom of the first pivot frame 20 to support the first pivot frame 20, and a second telescopic assembly 31 is provided at the bottom of the second pivot frame 30 to support the second pivot frame 30. The addition of the first telescopic assembly 21 and the second telescopic assembly 31 not only provides stable support for the adjustment of the head and foot of the bed, but also ensures the overall stability of the rescue flatbed at different angles, reducing potential safety hazards caused by angle adjustment.

[0122] Based on the above, by designing the first pivot frame 20 and the second pivot frame 30 to be connected to the front and rear ends of the upper bracket 12 of the bed frame 10, respectively, and equipped with corresponding telescopic components for support, the head and foot of the bed can be independently and flexibly adjusted in angle. This design meets the needs of patient position adjustment in different medical scenarios and improves flexibility and adaptability during rescue or treatment. The adjustability of the head and foot of the bed allows medical staff to adjust the angle of the bed according to the patient's specific conditions (such as respiratory and circulatory function), thereby reducing patient discomfort, promoting recovery, and improving patient comfort. The provision of the angle measuring device 50 allows medical staff to intuitively understand the specific angles of the head and foot of the bed, facilitating precise adjustment, while also simplifying the operation process and improving work efficiency.

[0123] Preferably, in an embodiment of the present invention, the first telescopic assembly 21 includes two first telescopic arms 211 , two second telescopic arms 212 and a first locking member 214 .

[0124] A first mounting post 22 is laterally disposed on the bottom surface of the first pivot frame 20 , and one end of the two first telescopic arms 211 is pivotally connected to the first mounting post 22 .

[0125] A second mounting post 23 is horizontally mounted on the lower bracket 11, and the second mounting post 23 is located below the first pivot frame 20. One end of the two second telescopic arms 212 is pivotally connected to the second mounting post 23, and the other end of the two second telescopic arms 212 is provided with a first slot 213, and the other ends of the two telescopic arms are inserted into the first slot 213 at the other end of the two second telescopic arms 212 one by one.

[0126] The first locking member 214 is connected to one end of the two first telescopic arms 211 to lock and fix the first telescopic arms 211 .

[0127] In this way, a stable support structure is formed by the mutual cooperation of the first telescopic arm 211 and the second telescopic arm 212. The first telescopic arm 211 is connected to the bottom surface of the first pivot frame 20, while the second telescopic arm 212 is connected to the second mounting column 23 on the lower bracket 11. This design ensures that the head of the bed 41 can be stably supported at different angles, avoiding shaking or instability caused by angle adjustment. The plug-in design between the first telescopic arm 211 and the second telescopic arm 212 makes it simple and quick to adjust the angle of the head of the bed. Medical staff can easily adjust the plug-in depth of the telescopic arm as needed, thereby achieving precise control of the angle of the head of the bed. The addition of the first locking member 214 provides a reliable locking function for the adjustment of the telescopic arm. When the angle of the head of the bed is adjusted to the desired position, the locking member can quickly fix the telescopic arm to prevent it from accidentally sliding or retracting during use, ensuring the safety and comfort of the patient.

[0128] Preferably, in one embodiment of the present invention, a plurality of first card slots 2131 are provided on a slot wall of the two first slots 213 , and the plurality of first card slots 2131 are spaced apart along the depth direction of the first slots 213 , and one end of the first locking member 214 is inserted into one of the first card slots 2131 .

[0129] In this way, the provision of multiple first slots 2131 allows the first locking member 214 to be precisely inserted into different slots, thereby precisely locking the relative position between the first telescopic arm 211 and the second telescopic arm 212. This design improves the accuracy and stability of the bedside angle adjustment, ensuring patient comfort. Due to the presence of multiple slots, the relative position between the first telescopic arm 211 and the second telescopic arm 212 can be adjusted in multiple levels, providing a wider angle adjustment range. This multi-level adjustment function allows the rescue flatbed to better adapt to the needs and conditions of different patients, increasing the flexibility and adaptability of the device.

[0130] Preferably, in an embodiment of the present invention, the first locking member 214 includes two first clamping portions 2141 , two driving rods 2142 , two extending portions 2143 and a first gripping portion 2144 .

[0131] The two first holding portions 2141 are disposed on the side surfaces of the two first telescopic arms 211 opposite to the first slots 2131 , and the ends of the first holding portions 2141 extend into the first slots 2131 opposite thereto.

[0132] Each of the two first telescopic arms 211 has an accommodating cavity. The two driving rods 2142 are respectively disposed in the accommodating cavity and can move along the length direction of the first telescopic arm 211. One end of the first clamping portion 2141 extends into the accommodating cavity.

[0133] One end of the two extension parts 2143 is respectively connected to the driving rod 2142, and the other end extends to the outside of the first telescopic arm 211. The two extension parts 2143 are made of a deformable and bendable material.

[0134] The first gripping portion 2144 is connected to the other ends of the two extending portions 2143 and is used to drive the two driving rods 2142 to move.

[0135] When the driving rod 2142 moves toward one end of the first telescopic arm 211 , the first clamping portion 2141 can be driven to move out of the first clamping slot 2131 .

[0136] In this way, by designing two first holding portions 2141 and extending their ends into the first slot 2131 opposite thereto, a double locking mechanism is achieved, greatly improving the reliability and stability of the locking. This design helps ensure that the device or structure is not easily loosened or disengaged in the locked state. A first gripping portion 2144 is provided, and through simple manual operation, the two drive rods 2142 can be driven to move, thereby controlling the entry and exit of the first holding portion 2141 into the first slot 2131. This design makes the unlocking and locking process quick and easy, improving the efficiency of use.

[0137] Preferably, in one embodiment of the present invention, a limiting portion 2145 is provided at one end of the first holding portion 2141 located in the accommodating cavity, the first holding portion 2141 is connected to the middle of the limiting portion 2145, and the inner side surface of the limiting portion 2145 is set as an inclined surface;

[0138] A pressing portion 2146 is provided on a side of the driving rod 2142 opposite the first holding portion 2141. The pressing portion 2146 is formed in an "L" shape. When the driving rod 2142 moves, the end of the pressing portion 2146 abuts against the inner side of the limiting portion 2145, thereby pushing the first holding member to retract into the first telescopic arm 211.

[0139] The outer surface of the limiting portion 2145 is provided with an extrusion spring 2147, which abuts against the outer surface of the driving rod 2142. Advantageously, the first engaging slot 2131 can be configured to extend obliquely in the depth direction, and the end of the first engaging portion 2141 can also extend obliquely, so that the first locking member 214 does not need to be operated when the first pivoting frame 20 pivots upward.

[0140] Thus, by providing a stopper 2145 at one end of the first clamping portion 2141 with an inclined inner surface, combined with the L-shaped extrusion portion 2146 on the driving rod 2142, the extrusion portion 2146 can smoothly and stably abut the inclined surface of the stopper 2145 when the driving rod 2142 moves, thereby effectively pushing the first clamping member to retract into the first telescopic arm 211. This design not only improves the reliability of clamping and releasing, but also reduces the risk of jamming or damage due to improper operation.

[0141] At the same time, a compression spring 2147, disposed on the outer surface of the stopper 2145, abuts against the outer surface of the drive rod 2142. This design allows the compression spring 2147 to provide a certain elastic force when the drive rod 2142 moves in the opposite direction or when the external force is removed, assisting the first retaining member in quickly and accurately returning to its original position. This automatic reset mechanism improves the device's responsiveness and ease of operation.

[0142] Preferably, in an embodiment of the present invention, the second telescopic assembly 31 includes two third telescopic arms 311 , two fourth telescopic arms 312 and a second locking member 314 .

[0143] A third mounting post 32 is transversely disposed on the second pivot frame 30 , and one end of the two third telescopic arms 311 is rotatably connected to the third mounting post 32 .

[0144] A fourth mounting column 33 is connected between the two support columns 13 located at the rear end of the upper bracket 12. One end of the two fourth telescopic arms 312 is rotatably connected to the fourth mounting column 33. The other end of the two fourth telescopic arms 312 is provided with a second slot 313. The other end of the two third telescopic arms 311 can be slidably inserted into the second slot 313.

[0145] The second locking member 314 is connected to the two fourth telescopic arms 312 to lock the fourth telescopic arms 312 .

[0146] In this way, the second telescopic assembly 31, through the interaction of the third and fourth telescopic arms 311 and 312, and their rotatable connection to the third and fourth mounting posts 32 and 33, provides stable support for the second pivot frame 30 (i.e., the bedside table 41). This design ensures that the bedside table 41 remains stable at various angles, reducing wobbling and instability, thereby enhancing patient safety and comfort. The third telescopic arm 311 slidably inserts into the second slot 313 of the fourth telescopic arm 312, enabling more flexible adjustment of the bedside table's angle. Medical staff can easily adjust the insertion position of the telescopic arms according to the patient's specific needs, achieving precise adjustment of the bedside table's angle. This flexibility not only improves the efficiency of the device but also meets the individual needs of different patients. The design of the second locking member 314 makes locking the fourth telescopic arm 312 simple and quick. Medical staff can simply operate the second locking member 314 to secure the fourth telescopic arm 312, preventing it from accidentally sliding or retracting during use.

[0147] Preferably, in one embodiment of the present invention, a plurality of second slots 3111 are provided on the surface of the third telescopic arm 311 , and the plurality of second slots 3111 are spaced apart along the length direction of the third telescopic arm 311 , and one end of the second locking member 314 extends into one of the second slots 3111 .

[0148] As such, since the second slots 3111 are spaced apart along the length of the third telescopic arm 311, the user can flexibly adjust the extended length of the telescopic arm by adjusting the second locking member 314 to different slot positions according to actual needs. This design not only improves ease of use but also enables the telescopic arm to adapt to a wider range of application scenarios.

[0149] Preferably, in an embodiment of the present invention, the second locking member 314 includes two second clamping portions 3141 , two connecting blocks 3142 and a second gripping portion 3143 .

[0150] The upper surfaces of the two fourth telescopic arms 312 are each provided with a mounting groove 3144 . The mounting groove 3144 obliquely extends into the second slot 313 . The two second holding members are slidably disposed in the mounting groove 3144 .

[0151] The two connecting blocks 3142 are respectively disposed on the surfaces of the two fourth telescopic arms 312 , and the bottom surfaces thereof are connected to the tail ends of the second holding portions 3141 .

[0152] Two ends of the second gripping portion 3143 are respectively connected to the surfaces of the two connecting blocks 3142 .

[0153] The bottom surface of the mounting slot 3144 is provided with a recessed portion 3145, within which a return spring 3146 is disposed. The bottom surface of the second retaining portion 3141 is provided with a driving portion 3147, the lower end of which is connected to one end of the return spring 3146. Advantageously, the second retaining slot 3111 can be configured to extend obliquely in the depth direction, and the end of the second retaining portion 3143 can also extend obliquely, so that the second locking member 314 does not need to be operated when the second pivoting frame 30 pivots upward.

[0154] Thus, with the two second clamping portions 3141 slidably disposed within the mounting slots 3144 of the fourth telescopic arm 312, combined with the action of the return spring 3146, the second clamping portions 3141 can automatically reset and securely engage or disengage from the corresponding second clamping slots 3111, thereby achieving movement and locking of the third telescopic arm 311. The provision of the second gripping portion 3143 allows the user to control the movement of the second clamping portion 3141 by simply gripping and pushing, thereby locking or unlocking the third telescopic arm 311. This design greatly simplifies the operation steps and improves ease of use.

[0155] Preferably, in an embodiment of the present invention, the two angle measuring devices 50 each include a disk 51 , a rotating shaft 52 and a pointer 53 .

[0156] The disc body 51 is arranged on the side of the upper bracket 12, and scale lines are provided on the surface of the disc body 51 along its circumference.

[0157] The rotating shaft 52 is disposed at the center of the disk 51 , and one end thereof is connected to the rotating shaft 52 of the first pivot frame 20 / the second pivot frame 30 .

[0158] One end of the pointer 53 is connected to the rotating shaft 52 , and the other end extends to the scale line. The pointer 53 can rotate along with the rotating shaft 52 .

[0159] In this way, the circumferential scale lines on the disc 51 provide a basis for precise angle measurement. When the first pivot frame 20 or the second pivot frame 30 (which one is connected depends on the actual application) rotates, the pointer 53 is driven to rotate synchronously via the shaft 52, and the position of the scale line indicated by the pointer 53 accurately reflects the current angle value. This design ensures the accuracy and reliability of angle measurement. The pointer 53 moves as the shaft 52 rotates, indicating the current angle value in real time, allowing the user to intuitively observe the changes in the angles of the head 41 and foot 43 of the bed. This intuitiveness not only improves the convenience of use, but also enhances the user's confidence and accuracy in operation.

[0160] Preferably, in an embodiment of the present invention, two extension arms 121 are provided at the head end and the tail end of the upper bracket 12 . The two extension arms 121 are arranged opposite to each other on the left and right sides, and the ends of the extension arms 121 are provided with connection holes 122 .

[0161] A handle portion 60 is provided on the side facing away from the first pivot frame 20 and the second pivot frame 30 , and connecting bolts 61 are passed through both ends of the handle portion 60 . When the first pivot frame 20 / the second pivot frame 30 pivots to a horizontal state, the end of the connecting bolt 61 can move into the connecting hole 122 .

[0162] Thus, by providing left-to-right opposing extension arms 121 at the front and rear ends of the upper bracket 12 and designing connecting holes 122 at their ends, a stable support and fixing point is provided for the first pivot frame 20 and the second pivot frame 30 when they are pivoted to a horizontal position. This design enhances the stability of the overall structure and reduces the risk of deformation or damage caused by uneven force. The connecting bolts 61 provided on the push handle 60 can directly mate with the connecting holes 122 at the ends of the extension arms 121, enabling rapid fixing of the first pivot frame 20 and the second pivot frame 30 in a horizontal position. This design simplifies the installation and disassembly process, improves work efficiency, and also facilitates user adjustments and replacements as needed.

[0163] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0164] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A rescue flatbed with flexible adjustment of the elevation angles of the head and foot of the bed, characterized in that: include: The bed frame includes a lower bracket and an upper bracket. The lower bracket and the upper bracket are arranged parallel to each other and connected by multiple support columns. Casters are provided at the four corners of the bottom surface of the lower bracket. A first pivot frame, the first pivot frame being pivotally connected to the rear end of the upper bracket; A second pivot frame, the second pivot frame being pivotally connected to the head end of the upper bracket; A mattress comprising a head portion, a middle portion, and a foot portion, wherein the middle portion is disposed on the upper support, the head portion is disposed on a second pivot frame and can rotate along with the second pivot frame, and the foot portion is disposed on a first pivot frame and can extend along the first pivot frame to rotate; Two angle measuring devices are respectively provided on the side of the upper bracket and connected to the first pivot frame / the second pivot frame to measure the pivot angle of the first pivot frame / the second pivot frame; The bottom of the first pivot frame is connected to a first telescopic assembly for supporting the first pivot frame, and the bottom of the second pivot frame is provided with a second telescopic assembly for supporting the second pivot frame.

2. The emergency flatbed with flexible adjustable head and foot elevation angles according to claim 1 is characterized in that: The first telescopic assembly includes: Two first telescopic arms, a first mounting post is laterally provided on the bottom surface of the first pivot frame, and one end of the two first telescopic arms is pivotally connected to the first mounting post; Two second telescopic arms, a second mounting post is horizontally mounted on the lower bracket, the second mounting post is located below the first pivot frame, one end of the two second telescopic arms is pivotally connected to the second mounting post, the other ends of the two second telescopic arms are provided with a first slot, and the other ends of the two telescopic arms are inserted into the first slots at the other ends of the two second telescopic arms in a one-to-one manner; The first locking member is connected to one end of the two first telescopic arms and is used to lock and fix the first telescopic arms.

3. The emergency flatbed with flexible adjustable head and foot elevation angles according to claim 2 is characterized in that: A plurality of first card slots are provided on a slot wall of the two first slots. The plurality of first card slots are spaced apart along the depth direction of the first slots. One end of the first locking member is inserted into one of the first card slots.

4. The emergency flatbed with flexible adjustable head and foot elevation angles according to claim 3 is characterized in that: The first locking member comprises: Two first clamping parts, the two first clamping parts are provided on the side surfaces of the two first telescopic arms opposite to the first clamping slots, and the ends of the first clamping parts extend into the first clamping slots opposite thereto; Two driving rods, each of the two first telescopic arms is provided with an accommodating cavity, the two driving rods are respectively arranged in the accommodating cavity and can move along the length direction of the first telescopic arm, and one end of the first clamping portion extends into the accommodating cavity; Two extensions, one end of each extension is connected to the driving rod, and the other end extends outside the first telescopic arm; A first gripping portion, connected to the other ends of the two extending portions, for driving the two driving rods to move; When the driving rod moves toward one end of the first telescopic arm, the first clamping portion can be driven to move out of the first clamping slot.

5. The emergency flatbed with flexible adjustable elevation angles of the head and foot of the bed according to claim 4 is characterized in that: A limiting portion is provided at one end of the first holding portion located in the accommodating cavity, the first holding portion is connected to the middle portion of the limiting portion, and the inner side surface of the limiting portion is configured as an inclined surface; A pressing portion is provided on a side of the driving rod opposite to the first holding portion. The pressing portion is formed in an "L" shape. When the driving rod moves, the end of the pressing portion abuts against the inner side of the limiting portion to push the first holding member to retract into the first telescopic arm. Wherein, an extrusion spring piece is provided on the outer surface of the limiting portion, and the outer surface of the extrusion spring piece is pressed against the outer surface of the driving rod.

6. The emergency flatbed with flexible adjustable head and foot elevation angles according to claim 1, characterized in that: The second telescopic assembly includes: Two third telescopic arms, a third mounting post is transversely provided on the second pivot frame, and one end of the two third telescopic arms is rotatably connected to the third mounting post; Two fourth telescopic arms, with a fourth mounting post connected between the two support posts at the rear end of the upper bracket, one end of the two fourth telescopic arms being rotatably connected to the fourth mounting post, and the other ends of the two fourth telescopic arms being provided with a second slot, the other ends of the two third telescopic arms being slidably inserted into the second slot; The second locking member is connected to the two fourth telescopic arms and is used to lock the fourth telescopic arms.

7. The emergency flatbed with flexible adjustable head and foot elevation angles according to claim 1, characterized in that: A plurality of second slots are provided on the surface of the third telescopic arm. The plurality of second slots are spaced apart along the length direction of the third telescopic arm. One end of the second locking member extends into one of the second slots.

8. The emergency flatbed with flexible adjustable head and foot elevation angles according to claim 1, characterized in that: The second locking member comprises: Two second holding portions, and mounting grooves are provided on the upper surfaces of the two fourth telescopic arms, and the mounting grooves extend obliquely into the second slots, and the two second holding members are slidably disposed in the mounting grooves; Two connecting blocks, the two connecting blocks are respectively provided on the surfaces of the two fourth telescopic arms, and the bottom surfaces are connected to the tail ends of the second holding portions; a second gripping portion, with both ends of the second gripping portion respectively connected to the surfaces of the two connecting blocks; Among them, the bottom surface of the installation groove is provided with a groove part, and a reset spring is provided in the groove part. The bottom surface of the second clamping part is provided with a driving part, and the lower end of the driving part is connected to one end of the reset spring.

9. The emergency flatbed with flexible adjustable head and foot elevation angles according to claim 1, characterized in that: Both angle measuring devices include: The disc body is arranged on the side of the upper bracket, and the surface of the disc body is provided with scale lines along its circumference; A rotating shaft is provided at the center of the disk body, and one end of the rotating shaft is connected to the rotating shaft of the first pivot frame / the second pivot frame; Pointer: one end of the pointer is connected to the rotating shaft, and the other end extends to the scale line. The pointer can rotate with the rotating shaft.

10. The emergency flatbed with flexible adjustable head and foot elevation angles according to claim 1, characterized in that: Two extension arms are provided at the head and tail ends of the upper bracket, the two extension arms are arranged opposite to each other on the left and right, and the ends of the extension arms are provided with connection holes; The first pivot frame and the second pivot frame are both provided with a push handle on the side facing away from each other. Both ends of the push handle are penetrated by connecting bolts. When the first pivot frame / the second pivot frame is pivoted to a horizontal state, the ends of the connecting bolts can move into the connecting holes.

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