Electric hospital bed and supporting base thereof

Abstract

The present invention relates to the field of electric hospital beds, and discloses an electric hospital bed and a supporting base thereof, comprising a bed body, wherein the bed body comprises a bottom plate, a bed board, and a movable bed board, wherein the movable bed board is symmetrically mounted on both sides of the bed board, and the two movable bed boards are swingably connected to the bed board through a plurality of damping hinges, wherein the bottom plate is mounted on the lower end of the bed board, and the bottom plate protrudes from the front and rear sides of the bed board respectively. The lifting mechanism of the present invention realizes rapid adjustment of the height of the hospital bed through the drive of a cylinder and a second telescopic cylinder, so that the hospital bed can flexibly change its shape and height according to actual needs, thereby better meeting the diversified needs in the medical care process. In emergency situations, traditional hospital beds cannot be quickly converted into a configuration that meets emergency standards, such as adding necessary monitoring equipment and operating space.

Description

Technical Field

[0001] The invention relates to the field of electric hospital beds, in particular to an electric hospital bed and a supporting base thereof. Background Art

[0002] In the current medical care field, hospital beds are important carriers for patient treatment and rehabilitation. Their design and functions directly affect patients' comfort, nursing efficiency and the rational use of medical resources. However, the design of traditional hospital beds is often limited to basic bed functions, which makes it difficult to meet diverse medical needs. In particular, many problems are exposed during emergency treatment and transfer. Most of the beds on the market currently have relatively single functions and cannot be flexibly adjusted according to the specific needs of patients or medical scenarios. For example, in emergency situations, traditional beds cannot be quickly converted to a configuration that meets emergency standards, such as adding necessary monitoring equipment and operating space, thereby delaying precious treatment time. Summary of the invention

[0003] The present invention provides an electric hospital bed and a supporting base thereof, which overcome the deficiencies described in the background art.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A support base, comprising an adjustment base for supporting a bed body, the adjustment base comprising a second bottom plate and an adjustment support assembly for supporting the second bottom plate, the adjustment support assembly being arranged through the second bottom plate;

[0006] The adjustment support assembly includes an upper cover plate, a hollow tube body, an electric push rod, a telescopic rod, a shock-absorbing reinforcement rib, and a caster. The upper cover plate and the hollow tube body are respectively clamped on the upper and lower sides of the second bottom plate, and the electric push rod is fixed in the upper cover plate. The caster is movably installed on the lower end of the output shaft of the electric push rod through the telescopic rod. The shock-absorbing reinforcement rib is installed on the outside of the telescopic rod in a ring array, and one end of the shock-absorbing reinforcement rib is fixed on the inside of the hollow tube body, and the other end is embedded in the telescopic rod.

[0007] The middle part of the shock-absorbing reinforcement rib is inclined and outwardly inclined, and every two opposite shock-absorbing reinforcement ribs are arranged in an eight-shaped structure, and the large-diameter end is arranged toward the upper cover plate;

[0008] A shock-absorbing airbag is arranged inside the shock-absorbing reinforcement rib, and the shock-absorbing airbag extends along the contour of the shock-absorbing reinforcement rib, and both sides of the shock-absorbing reinforcement rib protrude from both sides of the shock-absorbing airbag;

[0009] The shock-absorbing reinforcement ribs and the shock-absorbing airbags are both fan-shaped structures, and the small-diameter end is arranged toward the telescopic rod;

[0010] There is a space between the inner side of the shock-absorbing reinforcement rib and the shock-absorbing airbag for the shock-absorbing airbag to deform, and the space is arranged close to the outer side of the shock-absorbing airbag.

[0011] A preferred technical solution is that a slot is provided at the corresponding position of each shock-absorbing reinforcement rib on the surface of the telescopic rod, the lower end of the shock-absorbing reinforcement rib is embedded in the slot, and the lower end edge of the slot has an arc chamfer, and the lower end of the shock-absorbing reinforcement rib has an inclined surface on the side close to the slot, when the electric push rod contracts its output shaft, the lower end edge of the slot is squeezed with the inclined surface, and the shock-absorbing reinforcement rib is separated from the abutment state with the slot;

[0012] When the output shaft of the electric push rod pushes the caster outward to protrude from the lower end of the hollow tube body, the shock-absorbing reinforcement rib is embedded in the card slot;

[0013] When the output shaft of the electric push rod contracts the caster into the hollow tube body, the shock-absorbing reinforcement rib is separated from the abutment state with the slot and abuts against the surface of the caster.

[0014] An electric hospital bed includes a supporting base as described above, characterized in that the bed body includes a first bottom plate, a bed board, and a movable bed board, the movable bed board is symmetrically installed on both sides of the bed board, and the two movable bed boards are swingably connected to the bed board through multiple damping hinges, the first bottom plate is installed at the lower end of the bed board, and the first bottom plate protrudes from the front and rear sides of the bed board respectively, and when the two movable bed boards are bent downward to be flush with the surface of the bed board, the movable bed board is limited by the first bottom plate.

[0015] A preferred technical solution is that the bed body also includes a lifting mechanism and a cylinder, the adjustment base supports the bed body through the lifting mechanism, and the cylinder is connected to the lifting mechanism and drives the lifting mechanism to adjust the bed body;

[0016] The lifting mechanism includes a swing rod 1, a swing rod 2, and a second telescopic cylinder. One end of the second telescopic cylinder is movably mounted on the lower surface of the first bottom plate, and the other end is hinged with a connecting crank mounted on the surface of the swing rod 1. One end of the swing rod 1 is movably mounted on the end of the first bottom plate, and the other end is movably connected to the middle part of the swing rod 2. A slide groove is provided in the first bottom plate, and the lower end of the swing rod 2 is movably mounted on the adjustment base. The other end of the swing rod 2 is slidably arranged in the slide groove through a slider arranged at the end thereof.

[0017] The cylinder drives the output shaft of the second telescopic cylinder to extend and retract. When the output shaft of the second telescopic cylinder contracts, the first swing rod swings upward, and the second swing rod slides in the slide groove through the slider, and the distance between the bed body and the adjustment base is shortened.

[0018] Compared with the prior art, this technical solution has the following advantages:

[0019] The lifting mechanism of the present invention is driven by the cylinder and the second telescopic cylinder to achieve rapid adjustment of the height of the hospital bed, so that the hospital bed can flexibly change its shape and height according to actual needs, thereby better meeting the diverse needs of the medical care process. In emergency situations, traditional beds cannot be quickly converted into a configuration that meets emergency standards, such as adding necessary monitoring equipment and operating space. The lifting mechanism of the present invention can quickly drive the bed down when the trigger controller is squeezed, providing medical staff with more operating space and flexibility, thereby helping to improve emergency efficiency.

[0020] When the output shaft of the electric push rod contracts, the telescopic rod will move upward and compress the spring at the same time. In this process, the shock-absorbing reinforcement ribs will play a role similar to that of a spring due to their inclined setting, absorbing and dispersing part of the vibration energy. The figure-eight structure of the shock-absorbing reinforcement ribs helps to deform when under pressure, thereby further consuming vibration energy and reducing the vibration transmitted to the upper cover and other structures; and when the telescopic rod moves upward, one end of the shock-absorbing reinforcement rib is fixed to the inside of the hollow tube body, and the other end is embedded in the telescopic rod. Since the middle part of the shock-absorbing reinforcement ribs is inclined, when under pressure, they will bend inward to form a bow-like structure. This deformation helps to absorb and disperse vibration energy and reduce the impact of vibration on the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 This is an overall diagram of the present invention.

[0023] Figure 2 Schematic diagram of the base plate and adjustable support assembly.

[0024] Figure 3 It is a three-dimensional schematic diagram of the shock-absorbing reinforcement ribs and the electric push rod.

[0025] Figure 4 This is a schematic diagram of the structure of the shock-absorbing reinforcement rib.

[0026] Figure 5 for Figure 4 Enlarged schematic diagram of point a in the middle.

[0027] Figure 6 A three-dimensional schematic diagram of adjusting the support assembly.

[0028] In the figure: bed body 1, adjustment base 2, lifting mechanism 3, cylinder 4;

[0029] A first bottom plate 11, a bed plate 12, a movable bed plate 13, a second bottom plate 21, an adjustable support assembly 22, a first swing rod 31, a second swing rod 32, and a second telescopic cylinder 33;

[0030] Slide slot 111, trigger controller 112, damping hinge 131;

[0031] Positioning groove 211;

[0032] Upper cover plate 221, hollow tube body 222, electric push rod 223, telescopic rod 224, slot 2241, spring 2242, shock-absorbing reinforcement rib 225, shock-absorbing airbag 2251, inclined surface 2252, caster 226;

[0033] Connect the crank 311 and the slider 321 . DETAILED DESCRIPTION

[0034] like Figures 1 to 6 As shown, the present invention proposes an electric hospital bed, including a bed body 1, the bed body 1 includes a first bottom plate 11, a bed board 12, and a movable bed board 13, the movable bed board 13 is symmetrically installed on both sides of the bed board 12, and the two movable bed boards 13 are swingably connected to the bed board 12 through a plurality of damping hinges 131, the first bottom plate 11 is installed at the lower end of the bed board 12, and the first bottom plate 11 protrudes from the front and rear sides of the bed board 12 respectively, when the two movable bed boards 13 are bent downward to be flush with the surface of the bed board 12, the movable bed board 13 is limited by the first bottom plate 11;

[0035] The working principle of the electric hospital bed mainly revolves around its unique design, especially the swing connection mechanism between the movable bed board 13 and the bed board 12. When the bed needs to be used for routine care or treatment, the movable bed board 13 is kept flush with the bed board 12 or slightly adjusted as needed to provide a comfortable and stable bed environment for the patient. However, as mentioned in the background technology, traditional hospital beds often have a single function and cannot meet the diverse needs of emergency treatment and transfer processes;

[0036] To solve this problem, the electric bed of the present invention realizes the diversification and flexibility of functions through its unique design. Specifically, when encountering an emergency or transferring a patient, the medical staff can quickly operate the movable bed board 13 to bend it downward to be flush with the surface of the bed board 12. This action not only changes the shape of the bed, but also limits the movable bed board 13 through the first bottom plate 11, thereby ensuring the stability and safety of the bed during the emergency or transfer process.

[0037] More importantly, this design enables the bed to be quickly converted into a configuration that meets emergency standards. For example, after the movable bed board 13 is bent, more space may be freed up on both sides of the bed, making it easier for medical staff to place necessary monitoring equipment or perform emergency operations. At the same time, the protruding design of the first base plate 11 can also provide additional support points or fixed positions for medical equipment.

[0038] Based on the above electric hospital bed, the present invention further proposes a support base, including the above electric hospital bed, including an adjustment base 2, a lifting mechanism 3, and a cylinder 4. The adjustment base 2 supports the bed body 1 through the lifting mechanism 3. The cylinder 4 is connected to the lifting mechanism 3 and drives the lifting mechanism 3 to adjust the bed body 1, and Figure 1 As shown, a trigger controller 112 is further provided in the first bottom plate 11. The trigger controller 112 has a trigger end, which protrudes from the surface of the first bottom plate 11, and the trigger controller 112 signal is connected to the cylinder 4. When the trigger end of the trigger controller 112 is squeezed and triggered, an electrical signal is sent to the cylinder 4 to control the lifting mechanism 3 to adjust the height of the bed body 1 downward. When the trigger end of the trigger controller 112 is not squeezed and triggered, the bed body 1 is raised to a corresponding height on the contrary, and the height depends on the rising stroke of the lifting mechanism 3.

[0039] Among them, the adjustment base 2 provides a stable support for the bed body 1 through the lifting mechanism 3, and the cylinder 4 is closely connected with the lifting mechanism 3 and serves as its power source to drive the lifting mechanism 3 to move up and down, thereby realizing flexible adjustment of the height of the bed body 1. In the first bottom plate 11, the present invention cleverly sets a trigger controller 112, and the trigger controller 112 has a trigger end protruding from the surface of the first bottom plate 11. This design enables the trigger controller 112 to easily contact and interact with external objects. More importantly, a signal connection is established between the trigger controller 112 and the cylinder 4, so that the trigger controller 112 can send a control signal to the cylinder 4 in real time;

[0040] In actual application, when the trigger end of the trigger controller 112 is squeezed, it will immediately send an electrical signal to the cylinder 4. After receiving this signal, the cylinder 4 will drive the lifting mechanism 3 to move downward, thereby lowering the height of the bed body 1. This function is very useful when the bed needs to be quickly adjusted to a lower position, such as when performing first aid or patient transfer. On the contrary, when the trigger end of the trigger controller 112 is not squeezed, the cylinder 4 will drive the lifting mechanism 3 to move upward and lift the bed body 1 to a corresponding height. This height depends on the rising stroke of the lifting mechanism 3 and can be adjusted according to actual needs.

[0041] The lifting mechanism 3 includes a swing rod 1 31, a swing rod 2 32, and a second telescopic cylinder 33. One end of the second telescopic cylinder 33 is movably mounted on the lower surface of the first base plate 11, and the other end is hinged with a connecting crank 311 mounted on the surface of the swing rod 1 31. One end of the swing rod 1 31 is movably mounted on the end of the first base plate 11, and the other end is movably connected to the middle part of the swing rod 2 32. A slide groove 111 is provided in the first base plate 11, and the lower end of the swing rod 2 32 is movably mounted on the adjustment base 2. The other end of the swing rod 2 32 is slidably arranged in the slide groove 111 through a slider 321 arranged at its end. The cylinder 4 drives the output shaft of the second telescopic cylinder 33 to extend and retract. When the output shaft of the second telescopic cylinder 33 contracts, the swing rod 1 31 swings upward, and the swing rod 2 32 slides in the slide groove 111 through the slider 321, and the distance between the bed body 1 and the adjustment base 2 is shortened.

[0042] When the cylinder 4 is triggered and drives the output shaft of the second telescopic cylinder 33 to contract, this action is converted into the upward swing of the swing rod 1 31, and the swing of the swing rod 1 31 further drives the swing rod 2 32 to slide in the slide groove 111. Since the lower end of the swing rod 2 32 is movably connected to the adjustment base 2, and the upper end is connected to the bed body 1 through the swing rod 1 31 and the first bottom plate 11, the sliding of the swing rod 2 32 causes the bed body 1 to descend relative to the adjustment base 2, thereby realizing the flexible adjustment of the height of the bed;

[0043] Traditional beds often have a single function and cannot meet the diverse needs during emergency treatment and transfer. The lifting mechanism 3 of the present invention, driven by the cylinder 4 and the second telescopic cylinder 33, realizes rapid adjustment of the height of the bed, so that the bed can flexibly change its shape and height according to actual needs, thereby better meeting the diverse needs of the medical care process. In emergency situations, traditional beds cannot be quickly converted into a configuration that meets emergency standards, such as adding necessary monitoring equipment and operating space. The lifting mechanism 3 of the present invention can quickly drive the bed down when the trigger controller 112 is squeezed, providing more operating space and flexibility for medical staff, thereby helping to improve emergency efficiency.

[0044] A preferred technical solution: the adjustment base 2 includes a second bottom plate 21 and an adjustment support assembly 22 for supporting the second bottom plate 21, and the adjustment support assembly 22 is arranged through the second bottom plate 21;

[0045] The adjustable support assembly 22 includes an upper cover plate 221, a hollow tube body 222, an electric push rod 223, a telescopic rod 224, a shock-absorbing reinforcement rib 225, and a caster 226. The upper cover plate 221 and the hollow tube body 222 are respectively clamped on the upper and lower sides of the second bottom plate 21, and as shown in FIG. Figure 2As shown, a positioning groove 211 is respectively provided at the upper and lower sides of the second bottom plate 21 corresponding to the upper cover plate 221 and the hollow tube body 222. The positioning groove 211 can be used to form positioning during the installation of the adjustable support assembly 22; the positioning groove 211 provides a precise installation position for the upper cover plate 221 and the hollow tube body 222 in the adjustable support assembly 22, ensuring that these components can be accurately aligned during assembly, and through the design of the positioning groove, the upper cover plate 221 and the hollow tube body 222 can be more firmly connected to the second bottom plate 21, increasing the contact area, thereby improving the overall load-bearing capacity and anti-deformation ability, making the adjustable base more stable during use;

[0046] During installation, the upper cover plate 221 and the hollow tube body 222 only need to be aligned with the positioning groove 211 on the second bottom plate 21 to quickly complete the positioning without complicated adjustment process, which greatly simplifies the installation steps and improves the work efficiency. The clear positioning groove guides the installation position, effectively reduces the structural problems caused by improper installation, such as offset and tilt, and ensures the assembly quality and performance of the adjustable base.

[0047] The electric push rod 223 is fixed in the upper cover plate 221, and the caster 226 is movably installed at the lower end of the output shaft of the electric push rod 223 through the telescopic rod 224. The shock-absorbing reinforcement ribs 225 are installed in a ring array on the outside of the telescopic rod 224, and one end of the shock-absorbing reinforcement ribs 225 is fixed to the inside of the hollow tube body 222, and the other end is embedded in the telescopic rod 224. Figure 2 As shown, the telescopic rod 224 is movably installed in the output shaft of the electric push rod 223, and a spring 2242 is provided between the telescopic rod 224 and the output shaft of the electric push rod 223, so as to push the telescopic rod 224 outward through the spring 2242 and push the caster 226 out of the hollow tube body 222;

[0048] The middle part of the shock-absorbing reinforcement rib 225 is inclined and outwardly inclined, and every two opposite shock-absorbing reinforcement ribs 225 are arranged in an eight-shaped structure, and the large-diameter end is arranged toward the upper cover plate 221;

[0049] When the output shaft of the electric push rod 223 contracts, the telescopic rod 224 moves upward and compresses the spring 2242. In this process, the shock-absorbing reinforcement rib 225 plays a role similar to a spring due to its inclined setting, absorbing and dispersing part of the vibration energy. The figure-eight structure of the shock-absorbing reinforcement rib 225 helps to deform when under pressure, thereby further consuming the vibration energy and reducing the vibration transmitted to the upper cover plate 221 and other structures.

[0050] When the telescopic rod 224 moves upward, one end of the shock-absorbing reinforcement rib 225 is fixed to the inner side of the hollow tube 222, and the other end is embedded in the telescopic rod 224. Since the middle part of the shock-absorbing reinforcement rib 225 is inclined, when subjected to pressure, they will bend inward to form a bow-like structure. This deformation helps to absorb and disperse vibration energy and reduce the impact of vibration on the overall structure.

[0051] The matching relationship between the slot 2241 and the shock-absorbing reinforcement rib 225 is used to match with the end of the shock-absorbing reinforcement rib 225. When the shock-absorbing reinforcement rib 225 is deformed during vibration, the slot 2241 can provide certain support and stability to prevent the shock-absorbing reinforcement rib 225 from excessive deformation or falling off. This matching relationship helps to maintain the effectiveness and durability of the shock-absorbing reinforcement rib 225 during vibration.

[0052] A preferred technical solution is that a slot 2241 is respectively provided at the corresponding position of the surface of the telescopic rod 224 and each shock-absorbing reinforcement rib 225, and the lower end of the shock-absorbing reinforcement rib 225 is embedded in the slot 2241, and the lower end edge of the slot 2241 has an arc chamfer, and the lower end of the shock-absorbing reinforcement rib 225 has a slope 2252 on the side close to the slot 2241. When the electric push rod 223 contracts its output shaft, the lower end edge of the slot 2241 is squeezed with the slope 2252, and the shock-absorbing reinforcement rib 225 is separated from the abutment state with the slot 2241;

[0053] When the output shaft of the electric push rod 223 pushes the caster 226 outward to protrude from the lower end of the hollow tube body 222, the shock-absorbing reinforcement rib 225 is embedded in the slot 2241; when the output shaft of the electric push rod 223 shrinks the caster 226 into the hollow tube body 222, the lower edge of the slot 2241 on the telescopic rod 224 and the inclined surface 2252 at the lower end of the shock-absorbing reinforcement rib 225 are squeezed together. Due to the design of the inclined surface 2252, the shock-absorbing reinforcement rib 225 begins to separate from the slot 2241 when being squeezed. In the abutment state of the groove 2241, as the output shaft of the electric push rod 223 further contracts, the caster 226 is gradually pulled back into the hollow tube body 222. After the shock-absorbing reinforcement rib 225 is disengaged from the groove 2241, it begins to abut against the outer side of the caster 226 due to the interaction between the inclined surface at its lower end and the surface of the caster 226. This abutment state helps to provide additional support and stability when the caster 226 is retracted back into the hollow tube body 222, and also helps to disperse and reduce vibration.

[0054] A preferred technical solution is that a shock-absorbing airbag 2251 is provided inside the shock-absorbing reinforcement rib 225, and the shock-absorbing airbag 2251 extends along the contour of the shock-absorbing reinforcement rib 225, and both sides of the shock-absorbing reinforcement rib 225 protrude from both sides of the shock-absorbing airbag 2251; the shock-absorbing reinforcement rib 225 and the shock-absorbing airbag 2251 are both fan-shaped structures, and the small-diameter end is arranged toward the telescopic rod 224;

[0055] In addition, there is a space between the inner side of the shock-absorbing reinforcement rib 225 and the shock-absorbing airbag 2251 for the shock-absorbing airbag 2251 to deform, and the space is arranged close to the outer side of the shock-absorbing airbag 2251. The shock-absorbing airbag 2251 is filled with gas and has certain elasticity and compressibility. When the shock-absorbing reinforcement rib 225 is squeezed or vibrated, the shock-absorbing airbag 2251 can absorb part of the vibration energy and play a buffering role through the compression and expansion of the gas. The shock-absorbing airbag 2251 is filled in the shock-absorbing reinforcement rib 225, which helps to enhance the overall structural strength of the shock-absorbing reinforcement rib 225.

[0056] When the shock-absorbing reinforcement rib 225 is squeezed, the following changes will occur:

[0057] Deformation and recovery: The shock-absorbing reinforcement rib 225 will be deformed by pressure, especially the inclined portion thereof will bend inward. When the pressure is released, the shock-absorbing reinforcement rib 225 will try to recover to its original shape, and the shock-absorbing airbag 2251 will also help in the recovery process;

[0058] Compression and expansion of the shock-absorbing airbag 2251: When the shock-absorbing reinforcement rib 225 is squeezed, the shock-absorbing airbag 2251 will also be compressed to absorb part of the vibration energy. When the pressure is released, the shock-absorbing airbag 2251 will expand to help the shock-absorbing reinforcement rib 225 return to its original state. It can prevent the shock-absorbing reinforcement rib 225 from permanent deformation or damage when it is over-squeezed.

[0059] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A support base, characterized in that: The bed comprises an adjustable base (2) for supporting a bed body (1), the adjustable base (2) comprising a second bottom plate (21) and an adjustable support assembly (22) for supporting the second bottom plate (21), the adjustable support assembly (22) being arranged through the second bottom plate (21); The adjustment support assembly (22) comprises an upper cover plate (221), a hollow tube body (222), an electric push rod (223), a telescopic rod (224), a shock-absorbing reinforcement rib (225), and a caster (226); the upper cover plate (221) and the hollow tube body (222) are respectively clamped on the upper and lower sides of the second bottom plate (21); the electric push rod (223) is fixed in the upper cover plate (221); the caster (226) is movably mounted on the lower end of the output shaft of the electric push rod (223) through the telescopic rod (224); the shock-absorbing reinforcement rib (225) is mounted on the outer side of the telescopic rod (224) in a ring array; one end of the shock-absorbing reinforcement rib (225) is fixed on the inner side of the hollow tube body (222), and the other end is embedded in the telescopic rod (224); The middle portion of the shock-absorbing reinforcement rib (225) is arranged in an inclined manner and is inclined outwards, and each two opposing shock-absorbing reinforcement ribs (225) are arranged in an eight-shaped structure, and the large-diameter end is arranged toward the upper cover plate (221); A shock-absorbing airbag (2251) is provided inside the shock-absorbing reinforcement rib (225), the shock-absorbing airbag (2251) extends along the contour of the shock-absorbing reinforcement rib (225), and both sides of the shock-absorbing reinforcement rib (225) protrude from both sides of the shock-absorbing airbag (2251); The shock-absorbing reinforcement rib (225) and the shock-absorbing airbag (2251) are both fan-shaped structures, and the small-diameter end is arranged toward the telescopic rod (224); There is a space between the inner side of the shock-absorbing reinforcement rib (225) and the shock-absorbing airbag (2251) for the shock-absorbing airbag (2251) to deform, and the space is arranged close to the outer side of the shock-absorbing airbag (2251).

2. A support base according to claim 1, characterized in that: A slot (2241) is provided at a position corresponding to each shock-absorbing reinforcement rib (225) on the surface of the telescopic rod (224), the lower end of the shock-absorbing reinforcement rib (225) is embedded in the slot (2241), the lower end edge of the slot (2241) has an arc chamfer, and the lower end of the shock-absorbing reinforcement rib (225) has an inclined surface (2252) on a side close to the slot (2241), when the electric push rod (223) contracts its output shaft, the lower end edge of the slot (2241) is pressed against the inclined surface (2252), and the shock-absorbing reinforcement rib (225) is separated from the abutment state with the slot (2241); When the output shaft of the electric push rod (223) pushes the caster (226) outward to protrude from the lower end of the hollow tube body (222), the shock-absorbing reinforcement rib (225) is embedded in the slot (2241); When the output shaft of the electric push rod (223) retracts the caster (226) into the hollow tube body (222), the shock-absorbing reinforcement rib (225) is separated from the abutment state with the slot (2241) and abuts against the surface of the caster (226).

3. An electric hospital bed, comprising a support base as claimed in claim 2, characterized in that: The bed body (1) comprises a first bottom plate (11), a bed board (12), and a movable bed board (13); the movable bed board (13) is symmetrically mounted on both sides of the bed board (12); the two movable bed boards (13) are respectively connected to the bed board (12) by swinging through a plurality of damping hinges (131); the first bottom plate (11) is mounted on the lower end of the bed board (12); the first bottom plate (11) protrudes from the front and rear sides of the bed board (12); when the two movable bed boards (13) are bent downward to be flush with the surface of the bed board (12), the movable bed board (13) is limited by the first bottom plate (11).

4. The electric hospital bed according to claim 3, characterized in that: The bed body (1) further comprises a lifting mechanism (3) and a cylinder (4); the adjustment base (2) supports the bed body (1) via the lifting mechanism (3); the cylinder (4) is connected to the lifting mechanism (3) and drives the lifting mechanism (3) to adjust the bed body (1); The lifting mechanism (3) comprises a first swing rod (31), a second swing rod (32), and a second telescopic cylinder (33); one end of the second telescopic cylinder (33) is movably mounted on the lower surface of the first base plate (11), and the other end is hinged to a connecting crank (311) mounted on the surface of the first swing rod (31); one end of the first swing rod (31) is movably mounted on the end of the first base plate (11), and the other end is movably connected to the middle part of the second swing rod (32); a slide groove (111) is provided in the first base plate (11), and the lower end of the second swing rod (32) is movably mounted on the adjustment base (2); the other end of the second swing rod (32) is slidably mounted in the slide groove (111) via a slider (321) provided at the end thereof; The cylinder (4) drives the output shaft of the second telescopic cylinder (33) to extend and retract. When the output shaft of the second telescopic cylinder (33) contracts, the first swing rod (31) swings upward, and the second swing rod (32) slides in the slide groove (111) through the slider (321), thereby shortening the distance between the bed body (1) and the adjustment base (2).

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