Sickbed

Abstract

The invention provides a sickbed. The sickbed comprises a bed frame, a bed surface, a bed head, a bed tail, a plurality of folding bed plates and a driving device. The bed surface is arranged on the bed frame, and the bed head and the bed tail are arranged on the bed frame and located at the two ends of the bed surface. The plurality of folding bed plates can be folded below the bed tail, the plurality of folding bed plates can be stretched and then spliced to form a folding bed surface parallel to the bed surface, and the driving device is used for driving the plurality of folding bed plates to be folded or stretched. The driving device drives the multiple folding bed plates to be folded or unfolded, the folding bed surface for accompanying is formed on one side of the sickbed when needed, and the folding bed surface is stored below the bed tail in the form of the multiple folding bed plates when not needed, so that the sickbed has the accompanying function, an accompanying bed does not need to be additionally placed in a ward, and the sickbed is convenient to use. And the folding bed plate is accommodated below the bed tail and does not occupy other space, so that the convenience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a hospital bed. Background Art

[0002] When a patient seeks medical treatment in a hospital and needs to be hospitalized, their family members will have the need for accompaniment. Family members of the patient will use an accompanying bed when taking care of the patient. There are various types of accompanying beds in the prior art, and among them, there are accompanying beds with folding functions. However, even if the accompanying bed can be folded, when not in use, the folded accompanying bed still occupies a relatively large space, which will cause inconvenience. Moreover, once the number of accompanying family members in the same ward increases, the inconvenience caused by the accompanying bed occupying the ward space will be exacerbated. Summary of the Invention

[0003] Aiming at the deficiencies existing in the prior art, the present invention provides a hospital bed, which can solve or at least alleviate one or more of the above problems and other problems existing in the prior art.

[0004] The present invention provides a hospital bed, comprising:

[0005] A bed frame;

[0006] A bed surface, arranged on the bed frame;

[0007] A headboard, arranged on the bed frame and located at one end of the bed surface;

[0008] A footboard, arranged on the bed frame and located at the other end of the bed surface;

[0009] Multiple folding bed boards, which can be folded under the footboard and can be unfolded and spliced to form a folding bed surface parallel to the bed surface; and

[0010] A driving device for driving the multiple folding bed boards to fold or unfold.

[0011] Preferably, the bed frame comprises:

[0012] A pair of first bed legs, arranged under the headboard; and

[0013] A pair of second bed legs, arranged under the footboard;

[0014] The driving device comprises:

[0015] A first side rod, with both ends fixedly connected to the corresponding first bed leg and the second bed leg respectively;

[0016] A second side rod, slidably arranged on the bed frame, capable of sliding horizontally close to or away from the first side rod and parallel to the first side rod;

[0017] The first cross bar, one end of which is fixedly connected to the end of the first side bar;

[0018] The third side bar, one end of which is fixedly connected to the end of the first cross bar away from the second side bar, and the other end can be docked with the end of the first side bar after moving along with the second side bar. The third side bar is parallel to the second side bar, and the third side bar can move under the end of the bed along with the second side bar; and

[0019] The driving mechanism is used to drive the second side bar to slide so as to enable the third side bar to enter and exit from the bottom of the end of the bed;

[0020] A plurality of the folding bed boards are all arranged on the third side bar and the second side board; after the third side bar and the first side bar are docked, the driving mechanism is further used to drive the plurality of folding bed boards to unfold along the first side bar and the second side bar to form the folding bed surface.

[0021] Preferably, the driving mechanism includes:

[0022] The connecting block, one end of which is fixedly connected to the ends of the second side bar and the first cross bar, and a through first hole is formed in the connecting block;

[0023] The mounting seat, which is connected to the bed frame, and a second hole coaxial with the first hole is formed therein; and

[0024] The driving sleeve, one end of the outer wall of which is rotatably connected to the inner wall of the first hole, and the other end of the outer wall of which is threadedly connected to the inner wall of the second hole, and the driving sleeve can rotate.

[0025] Preferably, a first strip-shaped stopper extending along the axial direction thereof is connected to the inner wall of the driving sleeve;

[0026] The driving mechanism further includes:

[0027] The motor, which is connected to the bed frame;

[0028] The first driving rod, the end of which is coaxially and fixedly connected to the output end of the motor, and a coaxial third hole is formed therein;

[0029] The second driving rod, one end of which is slidably inserted into the first hole along the circumferential direction, and the other end of which is inserted into the driving sleeve. The second driving rod is connected to the connecting block and can rotate relative to the connecting block; and

[0030] The driving block, which is connected to the outer wall of the end of the second driving rod away from the first driving rod, and the driving block can rotate and abut against the first strip-shaped stopper.

[0031] Preferably, a fourth hole extending along its axial direction is formed in the second driving rod;

[0032] The driving mechanism further includes:

[0033] A driving gear rotatably arranged on the connecting block, with a second strip-shaped stopper connected to the inner wall of the driving gear along its axial direction, and the second strip-shaped stopper can abut against the driving block; and

[0034] A mounting rod connected to the connecting block, one end of which is coaxially inserted into the fourth hole, and the mounting rod is threadedly connected to the fourth hole;

[0035] The rotation of the driving gear can drive the unfolding of multiple folding bed boards.

[0036] Preferably, the driving mechanism further includes:

[0037] A first limiting ring sleeved outside the end of the second driving rod;

[0038] A second limiting ring sleeved outside the end of the second driving rod;

[0039] A sliding ring slidably sleeved outside the second driving rod along the axial direction, located between the first limiting ring and the second limiting ring, and the outer wall of the sliding ring is connected to one end of the driving block;

[0040] A first spring sleeved outside the second driving rod, with both ends respectively connected to the first limiting ring and the sliding ring; and

[0041] A second spring sleeved outside the second driving rod, with both ends respectively connected to the second limiting ring and the sliding ring.

[0042] Preferably, there are four folding bed boards; the four folding bed boards are sequentially hinged; one of the folding bed boards at one end of the four folding bed boards is hinged to the first cross bar; one of the folding bed boards at the other end of the four folding bed boards is hinged with a first support rod; a second support rod is hinged between the two middle folding bed boards of the four folding bed boards; the first support rod and the second support rod are parallel to each other; C-shaped sliders are respectively connected to one side ends of the first support rod and the second support rod; the C-shaped sliders are slidably matched with the first side rod and the third side rod; support rings are respectively connected to the other side ends of the first support rod and the second support rod; the support rings are slidably matched with the second side rod;

[0043] The driving mechanism further includes a transmission mechanism; the driving gear drives the support ring at the end of the first support rod to slide on the second side rod through the transmission mechanism.

[0044] Preferably, the transmission mechanism includes:

[0045] A fixed seat connected to one end of the second side rod away from the connection block;

[0046] A transmission rod, one end of which is rotatably connected to the fixed seat, and the other end is rotatably linked to the connection block, and the transmission rod is parallel to the second side rod;

[0047] A transmission block sleeved on the transmission rod through an opening and threadedly connected to the transmission rod, and the transmission block is fixedly connected to the support ring at the end of the first support rod; and

[0048] A gear set provided on the connection block to convert the rotation of the driving gear into the rotation of the transmission rod.

[0049] Compared with the prior art, the present invention has the following beneficial effects:

[0050] In the technology of the present invention, a plurality of folding bed boards are driven by a driving device to fold or unfold. When needed, a folding bed surface for accompanying is formed on one side of the hospital bed. When not needed, the folding bed surface is stored under the end of the bed in the form of a plurality of folding bed boards, so that the hospital bed has the function of accompanying, and there is no need to place an accompanying bed in the ward separately. And the folding bed boards are stored under the end of the bed, without occupying other spaces, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0052] Figure 1 A structural schematic diagram of a hospital bed in an embodiment of the present invention;

[0053] Figure 2 For Figure 1 Another perspective view (without the bed surface, head and end of the bed);

[0054] Figure 3 For Figure 2 Another perspective view (without the bed frame);

[0055] Figure 4 For Figure 3 The perspective view at position A in

[0056] Figure 5 For Figure 3 The perspective view at position B in

[0057] Figure 6 ForFigure 3 Enlarged view of the middle drive sleeve;

[0058] Figure 7 is Figure 6 Schematic diagram of the internal structure of;

[0059] Figure 8 is Figure 7 Enlarged view of point C of;

[0060] Figure 9 is Figure 7 Another schematic diagram of (the first drive rod and the second drive rod are both separated from the drive sleeve);

[0061] Figure 10 is Figure 9 Enlarged view of point D of;

[0062] Figure 11 is Figure 9 Enlarged view of point E of.

[0063] Reference numerals:

[0064] 10, Bed frame; 101, First bed leg; 102, Second bed leg; 11, Bed surface; 12, Head of the bed; 13, Foot of the bed; 14, Folding bed board; 15, First support rod; 16, Second support rod; 17, C-shaped slider; 18, Support ring;

[0065] 20, First side rod; 21, Second side rod; 22, First cross bar; 23, Third side rod; 24, Second cross bar;

[0066] 30, Drive mechanism; 31, Connecting block; 311, First hole; 32, Mounting seat; 321, Second hole; 33, Drive sleeve; 331, First strip-shaped stop; 34, Motor; 35, First drive rod; 351, Third hole; 36, Second drive rod; 361, Fourth hole; 37, Drive block; 38, Drive gear; 381, Second strip-shaped stop; 39, Mounting rod;

[0067] 40, First limiting ring; 41, Second limiting ring; 42, Sliding ring; 43, First spring; 44, Second spring;

[0068] 50, Fixed seat; 51, Transmission rod; 52, Transmission block; 53, Gear set; 531, Spur gear; 532, First bevel gear; 533, Second bevel gear. Detailed implementation mode

[0069] Hereinafter, embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and therefore are only examples and cannot be used to limit the protection scope of the present invention.

[0070] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the ordinary meanings understood by those skilled in the art to which the present invention pertains.

[0071] In the description of this application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. These 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 thus should not be construed as a limitation on the present invention.

[0072] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0073] In this application, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0075] See Figures 1 to 11 , this embodiment provides a hospital bed, including a bed frame 10, a bed surface 11, a headboard 12, a footboard 13, a plurality of folding bed boards 14 and a driving device.

[0076] The bed surface 11 is arranged on the bed frame 10, and the head of the bed 12 is arranged on the bed frame 10, and the head of the bed 12 is located at one end of the bed surface 11. The foot of the bed 13 is arranged on the bed frame 10, and the foot of the bed 13 is located at the other end of the bed surface 11. A plurality of folding bed boards 14 can be folded under the foot of the bed 13. The plurality of folding bed boards 14 can be stretched and spliced to form a folding bed surface 11 parallel to the bed surface 11, and the folding bed surface 11 is located on the side of the bed surface 11, and the two are approximately at the same level. The driving device is used to drive the plurality of folding bed boards 14 to fold or stretch.

[0077] The hospital bed in the prior art usually has the functions of lifting, tilting, etc., and different mechanisms are arranged directly below the hospital bed, which is why the folding bed board 14 of the device is placed below the foot of the bed 13 after being folded.

[0078] In this embodiment, a plurality of folding bed boards 14 are driven to fold or stretch through a driving device. When needed, a folding bed surface 11 for accompanying is formed on one side of the bed. When not needed, the folding bed surface 11 is stored under the foot of the bed 13 in the form of a plurality of folding bed boards 14. This allows the bed to have an accompanying function and there is no need to place an accompanying bed in the ward. The folding bed boards 14 are stored under the foot of the bed 13 and do not occupy other space, thereby improving convenience.

[0079] In one embodiment, the bed frame 10 includes a first bed leg 101 and a second bed leg 102 .

[0080] A pair of first bed legs 101 are provided, and are arranged below the head of the bed 12. A pair of second bed legs 102 are provided, and are arranged below the foot of the bed 13.

[0081] The driving device includes a first side rod 20 , a second side rod 21 , a first cross rod 22 , a third side rod 23 and a driving mechanism 30 .

[0082] The two ends of the first side bar 20 are fixedly connected to the corresponding first bed leg 101 and the second bed leg 102 respectively. The second side bar 21 is slidably arranged on the bed frame 10, and the second side bar 21 can slide horizontally close to or away from the first side bar 20, and is parallel to the first side bar 20. One end of the first cross bar 22 is fixedly connected to the end of the first side bar 20. One end of the third side bar 23 is fixedly connected to the end of the first cross bar 22 away from the second side bar 21, and the other end can be connected with the end of the first side bar 20 after moving with the second side bar 21. The third side bar 23 is parallel to the second side bar 21, and the third side bar 23 can move to the bottom of the bed foot 13 with the second side bar 21. The end of the second side bar 21 away from the first cross bar 22 is connected to the second cross bar 24, and the second cross bar 24 is parallel to the first cross bar 22, and the second cross bar 24 is slidably connected to the bed frame 10. The first side bar 20, the third side bar 23, the first cross bar 22, the second side bar 21, and the second cross bar 24 are sequentially surrounded by a rectangular frame structure.

[0083] The driving mechanism 30 is used to drive the second side rod 21 to slide so as to enable the third side rod 23 to enter and exit from the bottom of the bed tail 13. Multiple folding bed boards 14 are all arranged on the third side rod 23 and the second side plate. After the third side rod 23 is docked with the first side rod 20, the driving mechanism 30 is further used to drive the multiple folding bed boards 14 to unfold along the first side rod 20 and the second side rod 21 to form a folding bed surface 11.

[0084] In this embodiment, several folding bed boards 14 are arranged on the second side rod 21 and the third side rod 23 in an overlapping state. The driving mechanism 30 slides the second side rod 21 away from the bed frame 10. At this time, the first cross bar 22 follows the movement of the second side rod 21 and drives the third side rod 23 to move out from under the bed tail 13, so as to move the multiple folding bed boards 14 out from under the bed tail 13. Then, the driving mechanism 30 unfolds the multiple folding bed boards 14 on the first side rod 20 and the second side rod 21, so as to form a folding bed surface 11 for the accompanying family members to use. An air cushion can be arranged on the folding bed board 14 to improve its comfort.

[0085] In one embodiment, the driving mechanism 30 includes a connecting block 31, a mounting seat 32 and a driving sleeve 33.

[0086] The connecting block 31 is fixedly connected to one end where the second side rod 21 and the first cross bar 22 are connected to each other. A through first hole 311 is opened on the connecting block 31. The mounting seat 32 is connected to the bed frame 10, and a second hole 321 coaxial with the first hole 311 is opened thereon. One end outer wall of the driving sleeve 33 is rotationally connected to the inner wall of the first hole 311, and the other end outer wall of the driving sleeve 33 is threadedly connected to the inner wall of the second hole 321, and the driving sleeve 33 can rotate.

[0087] In this embodiment, by rotating the driving sleeve 33, the driving sleeve 33 is enabled to axially move in the second hole 321, and then the second side rod 21 is driven to approach or move away from the bed frame 10.

[0088] In one embodiment, a first strip-shaped stopper 331 extending along its axial direction is connected to the inner wall of the driving sleeve 33.

[0089] The driving mechanism 30 further includes a motor 34, a first driving rod 35, a second driving rod 36 and a driving block 37.

[0090] The electric motor 34 is connected to the bed frame 10. The end of the first drive rod 35 is coaxially and fixedly connected to the output end of the electric motor 34. A coaxial third hole 351 is formed in the first drive rod 35. One end of the second drive rod 36 is slidably inserted into the first hole 311 in the circumferential direction, and the other end of the second drive rod 36 is inserted into the drive sleeve 33. The second drive rod 36 is connected to the connecting block 31 and is rotatable relative to the connecting block 31. Specifically, a strip-shaped limiting block is arranged on the inner wall of the third hole 351 along the axial direction, and a groove is formed on the outer wall of the second drive rod 36 along the axial direction. The groove is in sliding fit with the strip-shaped limiting block, so that the second drive rod 36 can slide axially in the third hole 351 of the first drive rod 35.

[0091] The drive block 37 is connected to the outer wall of the end of the second drive rod 36 away from the first drive rod 35. The drive block 37 can be rotated to abut against the first strip-shaped stop block 331.

[0092] In this embodiment, the first drive rod 35 is driven to rotate by the electric motor 34, and then the second drive rod 36 is driven to rotate. After the drive block 37 at the end of the second drive rod 36 rotates and abuts against the first strip-shaped stop block 331, the drive sleeve 33 is driven to rotate. During the rotation of the drive sleeve 33, it moves axially and drives the connecting block 31 to approach or move away from the bed frame 10.

[0093] In one embodiment, a fourth hole 361 is formed in the second drive rod 36 along its axial direction.

[0094] The drive mechanism 30 further includes a drive gear 38 and a mounting rod 39.

[0095] The drive gear 38 is rotatably arranged on the connecting block 31. A second strip-shaped stop block 381 is connected to the inner wall of the drive gear 38 along its axial direction, and the second strip-shaped stop block 381 can abut against the drive block 37. The mounting rod 39 is connected to the connecting block 31. One end of the mounting rod 39 is coaxially inserted into the fourth hole 361, and the mounting rod 39 is threadedly connected to the fourth hole 361. The rotation of the drive gear 38 can drive multiple folding bed boards 14 to unfold. The inner diameter of the drive gear 38 is the same as the inner diameter of the drive sleeve 33, and the distance between them is relatively close.

[0096] In this embodiment, the first driving rod 35 drives the second driving rod 36 to rotate. When the end of the second driving rod 36 is located within the driving sleeve 33 (the end of the driving sleeve 33 close to the driving gear 38), the second driving rod 36 drives the driving sleeve 33 to rotate through the driving block 37, so that the multiple folding bed boards 14 on the second side rod 21 and the third side rod 23 can be taken out from the bed tail 13 by the axial movement of the driving sleeve 33. At the same time, the fourth hole 361 on the second driving rod 36 is threadedly connected to the mounting rod 39, which causes the second driving rod 36 to axially move along the mounting rod 39 during rotation, so that the second driving rod 36 drives the driving block 37 thereon to gradually enter the driving gear 38 from within the driving sleeve 33, so that the driving block 37 abuts against the second strip-shaped stopper 381 on the inner wall of the driving gear 38, thereby driving the driving gear 38 to rotate, so that the multiple folding bed boards 14 on the second side rod 21 and the third side rod 23 are stretched to form the folding bed surface 11.

[0097] When the first driving rod 35 drives the second driving rod 36 to rotate in the reverse direction, the driving block 37 on the end of the second driving rod 36 first drives the driving gear 38 to rotate in the reverse direction to realize the folding of the multiple folding bed boards 14. The second driving rod 36 rotates on the mounting rod 39, causing the second driving rod 36 to axially move along the mounting rod 39. The driving block 37 at the end of the second driving rod 36 moves from within the driving gear 38 to within the driving sleeve 33, and then drives the driving sleeve 33 to rotate, so as to realize the movement of the multiple folding bed boards 14 together with the third side rod 23 below the bed tail 13 to achieve the storage effect.

[0098] In one embodiment, the driving mechanism 30 further includes a first limiting ring 40, a second limiting ring 41, a sliding ring 42, a first spring 43 and a second spring 44.

[0099] The first limiting ring 40 is sleeved outside the end of the second driving rod 36. The second limiting ring 41 is sleeved outside the end of the second driving rod 36. The sliding ring 42 is axially slidably sleeved outside the second driving rod 36, located between the first limiting ring 40 and the second limiting ring 41. The outer wall of the sliding ring 42 is connected to one end of the driving block 37. The first spring 43 is sleeved outside the second driving rod 36, and its two ends are respectively connected to the first limiting ring 40 and the sliding ring 42. The second spring 44 is sleeved outside the second driving rod 36, and its two ends are respectively connected to the second limiting ring 41 and the sliding ring 42.

[0100] In this embodiment, the driving block 37 is arranged at the end of the second driving rod 36 through a sliding ring 42. When the driving rod enters the driving gear 38 from the driving sleeve 33 or enters the driving sleeve 33 from the driving gear 38, the driving block 37 may abut against the first strip-shaped stopper 331 or the second strip-shaped stopper 381. The first spring 43 and the second spring 44 enable the driving block 37 to have a yielding space. After the driving block 37 abuts against the first strip-shaped stopper 331 or the second strip-shaped stopper 381, it can remain stationary temporarily until the driving block 37 is located on the side of the first strip-shaped stopper 331 or the second strip-shaped stopper 381 after rotating with the second driving rod 36. At this time, the driving block 37 can move to the side of the first strip-shaped stopper 331 or the second strip-shaped stopper 381 on the circumferential side of the second driving rod 36 under the action of the first spring 43 and the second spring 44. At this time, the driving rod can abut against the first strip-shaped stopper 331 or the second strip-shaped stopper 381 after rotation, and the whole structure runs smoothly.

[0101] In one embodiment, four folding bed boards 14 are provided. The four folding bed boards 14 are sequentially hinged. One of the folding bed boards 14 at one end of the four folding bed boards 14 is hinged to the first cross bar 22, and one of the folding bed boards 14 at the other end of the four folding bed boards 14 is hinged with a first support rod 15. A second support rod 16 is hinged between the two middle folding bed boards 14 of the four folding bed boards 14. The second support rod 16 is respectively hinged to the two folding bed boards 14 in the middle of the four folding bed boards 14. The first support rod 15 and the second support rod 16 are parallel to each other. One side ends of the first support rod 15 and the second support rod 16 are respectively connected with C-shaped sliders 17, and the C-shaped sliders 17 are slidably matched with the first side rod 20 and the third side rod 23. The other side ends of the first support rod 15 and the second support rod 16 are respectively connected with support rings 18; the support rings 18 are slidably matched with the second side rod 21. The driving mechanism 30 further includes a transmission mechanism; the driving gear 38 drives the support ring 18 at the end of the first support rod 15 to slide on the second side rod 21 through the transmission mechanism. Support frames are fixedly connected below the first support rod 15 and the second support rod 16, and universal wheels are connected to the lower ends of the support frames.

[0102] In this embodiment, driven by the driving gear 38, the transmission mechanism slides the support ring 18 at the end of the first support rod 15 on the second side rod 21, so as to realize the folding and unfolding of the four folding bed boards 14.

[0103] In one embodiment, the transmission mechanism includes a fixed seat 50, a transmission rod 51, a transmission block 52 and a gear set 53.

[0104] The fixed seat 50 is connected to one end of the second side rod 21 away from the connecting block 31. One end of the transmission rod 51 is rotatably connected to the fixed seat 50, the other end of the transmission rod 51 is rotatably connected to the connecting block 31, and the transmission rod 51 is parallel to the second side rod 21. The transmission block 52 is sleeved on the transmission rod 51 through an opening and is threadedly connected to the transmission rod 51, and the transmission block 52 is fixedly connected to the support ring 18 at the end of the first support rod 15. The gear set 53 is arranged on the connecting block 31, and the gear set 53 converts the rotation of the driving gear 38 into the rotation of the transmission rod 51. Specifically, the gear set 53 includes a spur gear 531, a first bevel gear 532 and a second bevel gear 533; the spur gear 531 is rotatably arranged on the connecting block 31, the spur gear 531 meshes with the driving gear 38, the first bevel gear 532 is coaxially connected to the spur gear 531, the second bevel gear 533 is coaxially connected to the transmission rod 51, and the first bevel gear 532 and the second bevel gear 533 mesh with each other.

[0105] In the description of the present invention, a large number of specific details are set forth. However, it can be understood that the embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and technologies have not been shown in detail so as not to obscure the understanding of this specification.

[0106] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the specification of the present invention.

Claims

1. A hospital bed, characterized in that, Comprising: A bed frame (10); A bed surface (11), disposed on the bed frame (10); A headboard (12), disposed on the bed frame (10) at one end of the bed surface (11); A footboard (13), disposed on the bed frame (10) at the other end of the bed surface (11); A plurality of folding bed boards (14), which can be folded under the footboard (13) and can be unfolded and spliced to form a folding bed surface (11) parallel to the bed surface (11); And A driving device for driving the plurality of folding bed boards (14) to fold or unfold.

2. The hospital bed according to claim 1, wherein The bed frame (10) includes: A pair of first bed legs (101), disposed under the headboard (12); and A pair of second bed legs (102), disposed under the footboard (13); The driving device includes: A first side rod (20), with both ends fixedly connected to the corresponding first bed leg (101) and the second bed leg (102) respectively; A second side rod (21), slidably disposed on the bed frame (10), capable of horizontally sliding closer to or away from the first side rod (20), and parallel to the first side rod (20); A first cross rod (22), with one end fixedly connected to the end of the first side rod (20); A third side rod (23), with one end fixedly connected to the end of the first cross rod (22) away from the second side rod (21), and the other end capable of docking with the end of the first side rod (20) after moving with the second side rod (21), the third side rod (23) being parallel to the second side rod (21), and the third side rod (23) capable of moving under the footboard (13) with the second side rod (21); and A driving mechanism (30), the driving mechanism (30) being used to drive the second side rod (21) to slide so as to enable the third side rod (23) to enter and exit from the bottom of the footboard (13); The plurality of folding bed boards (14) are all disposed on the third side rod (23) and the second side board; when the third side rod (23) and the first side rod (20) are docked, the driving mechanism (30) is further used to drive the plurality of folding bed boards (14) to unfold along the first side rod (20) and the second side rod (21) to form the folding bed surface (11).

3. The hospital bed according to claim 2, wherein, The driving mechanism (30) includes: A connecting block (31), fixedly connected to the end that is interconnected with the second side rod (21) and the first cross rod (22), and a through first hole (311) is formed in the connecting block (31); A mounting seat (32), connected to the bed frame (10), and a second hole (321) coaxial with the first hole (311) is formed therein; and A driving sleeve (33), with one end outer wall rotatably connected to the inner wall of the first hole (311) and the other end outer wall threadedly connected to the inner wall of the second hole (321), and the driving sleeve (33) can rotate.

4. The hospital bed according to claim 3, wherein, A first strip-shaped stopper (331) extending along its axial direction is connected to the inner wall of the driving sleeve (33); The driving mechanism (30) further includes: A motor (34), connected to the bed frame (10); The first driving rod (35), the end of which is coaxially and fixedly connected to the output end of the motor (34), and a third hole (351) coaxial with it is provided thereon; The second driving rod (36), one end of which is slidably inserted into the first hole (311) along the circumferential direction, and the other end is inserted into the driving sleeve (33). The second driving rod (36) is connected to the connecting block (31) and is rotatable relative to the connecting block (31); and The driving block (37), which is connected to the outer wall of one end of the second driving rod (36) far from the first driving rod (35), and the driving block (37) can be rotated to abut against the first strip-shaped stopper (331).

5. The hospital bed according to claim 4, characterized in that, A fourth hole (361) along its axial direction is provided on the second driving rod (36); The driving mechanism (30) further includes: The driving gear (38) is rotatably arranged on the connecting block (31). A second strip-shaped stopper (381) along its axial direction is connected to the inner wall of the driving gear (38), and the second strip-shaped stopper (381) can abut against the driving block (37); and The mounting rod (39) is connected to the connecting block (31), and one end of it is coaxially inserted into the fourth hole (361). The mounting rod (39) is threadedly connected to the fourth hole (361); The rotation of the driving gear (38) can drive the plurality of folding bed boards (14) to unfold.

6. The hospital bed according to claim 5, wherein, The driving mechanism (30) further includes: The first limiting ring (40) is sleeved outside the end of the second driving rod (36); The second limiting ring (41) is sleeved outside the end of the second driving rod (36); The sliding ring (42) is slidably sleeved outside the second driving rod (36) along the axial direction and is located between the first limiting ring (40) and the second limiting ring (41). The outer wall of the sliding ring (42) is connected to one end of the driving block (37); The first spring (43) is sleeved outside the second driving rod (36), and both ends are respectively connected to the first limiting ring (40) and the sliding ring (42); and The second spring (44) is sleeved outside the second driving rod (36), and both ends are respectively connected to the second limiting ring (41) and the sliding ring (42).

7. A hospital bed according to claim 5 or 6, characterized in that, The folding bed boards (14) are provided with four pieces; the four folding bed boards (14) are hinged in sequence; the folding bed board (14) at one end of the four folding bed boards (14) is hinged to the first cross bar (22); the folding bed board (14) at the other end of the four folding bed boards (14) is hinged with a first support rod (15); a second support rod (16) is hinged between the middle two of the four folding bed boards (14); the first support rod (15) and the second support rod (16) are parallel to each other; one side end parts of the first support rod (15) and the second support rod (16) are respectively connected with C-shaped sliders (17); the C-shaped sliders (17) are in sliding fit with the first side rod (20) and the third side rod (23); the other side end parts of the first support rod (15) and the second support rod (16) are respectively connected with support rings (18); the support rings (18) are in sliding fit with the second side rod (21). The driving mechanism (30) further includes a transmission mechanism; the driving gear (38) drives the support ring (18) at the end of the first support rod (15) to slide on the second side rod (21) through the transmission mechanism.

8. The hospital bed according to claim 7, wherein, The transmission mechanism includes: A fixed seat (50), connected to one end of the second side rod (21) far away from the connecting block (31); A transmission rod (51), one end of which is rotatably connected to the fixed seat (50), and the other end is rotatably connected to the connecting block (31), and the transmission rod (51) is parallel to the second side rod (21); A transmission block (52), sleeved on the transmission rod (51) through an opening and threadedly connected to the transmission rod (51), and the transmission block (52) is fixedly connected to the support ring (18) at the end of the first support rod (15); and A gear set (53), arranged on the connecting block (31), which converts the rotation of the driving gear (38) into the rotation of the transmission rod (51).

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