Multi-locking-position safety nursing bed
By combining a height-adjustable guardrail with multiple locking tongue cavities in the design of the child care bed, the problem of inconvenient guardrail height adjustment is solved, enabling flexible and safe adjustment of the guardrail height and enhancing the safety and convenience of using the child care bed.
Patent Information
- Application Number
- CN202520138168.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-21
AI Technical Summary
The height of the side rails on existing child care beds cannot be flexibly adjusted, which cannot meet the safety needs of different scenarios. Furthermore, the adjustment is inconvenient and can easily lead to safety hazards due to children accidentally touching them.
The design incorporates a height-adjustable guardrail. By operating the first and second handles with both hands, combined with multiple locking tongue cavities, the height of the guardrail can be flexibly adjusted to prevent children from accidentally touching it and enhance safety.
It enables quick and safe adjustment of the guardrail height, adapting to different usage scenarios and improving the safety and ease of use of the child care bed.
Smart Images
Figure CN223817788U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of children nursing bed, concretely to a plurality of lock position safety nursing bed. BACKGROUND
[0002] Children nursing bed, especially suitable for children bed or in the bed limited space activity, the existing children nursing bed height cannot be flexibly adjusted according to different scenes guardrail height, in actual use, for the child care according to the different scenes of playing with children, feeding medicine, changing diapers, interacting with children or letting children rest in bed, need to flexibly adjust the height of guardrail, especially for the adjustment of bed side guardrail height, when the child care needs to feed medicine, change diapers, the child care pours greater attention on the child, and less attention is paid to the action on the hand, and the bed side guardrail only needs a lower height, which is convenient for the child care to operate, and simultaneously avoids the child from sliding on the nursing bed, when a certain distance is kept from the nursing bed, and when communicating with the child, the bed side guardrail needs to be adjusted to a medium height, which can prevent the child from accidentally falling, when the child care temporarily leaves or the child rests in bed, the bed side guardrail can be adjusted to a higher height, which avoids the child from climbing the guardrail and falling in the situation of no one looking after, when playing with the child, the bed side guardrail can be adjusted to be flush with the bed surface, which allows the child to sit with legs hanging on the bed side.
[0003] In addition, the height adjustment of the bed side guardrail should also meet the characteristics of convenience and speed, so as to conveniently adjust the height of the bed side guardrail according to the needs at any time, and the adjustment function should avoid the child from touching by mistake. CONTENT OF THE UTILITY MODEL
[0004] (I) Technical problem solved
[0005] In view of the deficiencies of the prior art, the utility model provides a plurality of lock position safety nursing bed, which solves the problem of conveniently and safely adjusting the height of the bed side guardrail of the children nursing bed according to different scenes.
[0006] (II) Technical scheme
[0007] To achieve the above object, the utility model is realized by the following technical scheme:
[0008] The utility model provides a kind of multi-locking position safety nursing bed, horizontally arranged bed surface is provided, the bed surface is arranged rectangular, the bed surface four corners are connected with stand respectively, and bed surface connects the middle part of stand, and bed head guardrail, bed tail guardrail are connected between the stand, bed side guardrail is arranged as two, at least one bed side guardrail is arranged as liftable guardrail, the upper end of the liftable guardrail is horizontally provided with handrail, the side of the stand and the liftable guardrail is connected with the longitudinal opposite arrangement of sliding slot, the handrail is slidably connected between two sliding slots, the first connecting rod, the second connecting rod are rotatably arranged in the handrail, the first connecting rod is connected with the stand of bed head guardrail, the second connecting rod is connected with the stand of bed tail guardrail, the end of the first connecting rod and the second connecting rod is fixedly connected with lock tongue respectively, which is connected with the bed head guardrail or the bed tail guardrail, the stand is arranged as cavity structure, the lock tongue is all inserted into the cavity structure of stand, the side end inner wall of the stand and the bed head guardrail or the bed tail guardrail is connected with lock tongue containing cavity, the lock tongue is matched with lock tongue containing cavity, the outer side end of the lock tongue containing cavity and its mounting surface is oppositely arranged as inclined wedge surface of high in upper and low in lower, and the lock tongue containing cavity is upwardly opened, and the position of the outer side of the stand and the lock tongue containing cavity is oppositely pasted with lock fixed position mark, the first handle is connected with the first connecting rod, and the first handle is fixedly connected with the first connecting rod by passing through the aperture corresponding to the handrail, the second handle is connected with the second connecting rod, and the second handle is fixedly connected with the second connecting rod by passing through the aperture corresponding to the handrail, the first handle and the second handle are respectively connected with torsion spring, and the torsion spring force makes the lower end of the lock tongue abut against the side end inner wall of the stand and the bed head guardrail or the bed tail guardrail, and the lock tongue containing cavity is oppositely arranged as multiple groups.
[0009] Preferably, a handle seat is further provided, the handle seat is fixed on the liftable guardrail, the handle seat is respectively provided with the first handle and the second handle, the first handle and the second handle are respectively rotatably arranged on the corresponding handle seat, the torsion spring is respectively arranged between the first handle and the corresponding handle seat and the second handle and the corresponding handle seat, the torsion spring force makes the first handle and the second handle respectively snap on the corresponding handle seat, a rotating plate is further arranged on the handle seat, the first handle rotates to drive the corresponding rotating plate one end to rotate, and the other end of the rotating plate is fixedly connected with the first connecting rod by passing through the aperture corresponding to the handrail, the second handle rotates to drive the corresponding rotating plate one end to rotate, and the other end of the rotating plate is fixedly connected with the second connecting rod by passing through the aperture corresponding to the handrail.
[0010] Preferably, the lower end of the liftable guardrail is horizontally provided with crossbar, the crossbar two ends are respectively connected with the sliding slot of stand, a plurality of vertical bars are arranged between the handrail and the crossbar, the sliding slot is connected with crossbar stop, and the crossbar stop is arranged near the bottom end of the stand.
[0011] Preferably, the vertical railing is a telescopic structure. When the liftable guardrail is at its lowest position relative to the upright and the vertical railing is in a retracted state, the upper end of the handrail is flush with the bed surface. The locking tongue receiving cavity is configured with 3 sets. When the locking tongue is engaged with the highest locking tongue receiving cavity and the vertical railing is in an extended state, the lower end of the horizontal railing is flush with the bed surface. The lowest locking tongue receiving cavity is higher than the bed surface, and the highest locking tongue receiving cavity is close to the top of the upright.
[0012] (III) Beneficial Effects
[0013] This utility model provides a multi-locking safety nursing bed. It has the following beneficial effects:
[0014] By setting the bed side rails as height-adjustable rails, which are equipped with a first handle and a second handle, the height can be adjusted by using both hands to control the first and second handles respectively, thus preventing children from accidentally touching them and enhancing the safety of adjustment; by setting the locking tongue cavity to multiple sets of different heights, the height of the height-adjustable rails can be easily and quickly adjusted according to different usage scenarios. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram showing the connection between the liftable guardrail and the post of this utility model;
[0017] Figure 3 for Figure 2 X-ray magnification;
[0018] Figure 4 This is a schematic diagram showing the connection state between the second handle and the handle seat and the locking tongue when they are engaged.
[0019] Figure 5 This is a schematic diagram showing the connection state between the second handle and the locking tongue when the second handle is flipped.
[0020] Figure 6 This is a schematic diagram showing the handrail of the adjustable guardrail of this utility model when the upper end is flush with the bed surface.
[0021] Figure 7 This is a schematic diagram showing the engagement state of the locking tongue and the lowest locking tongue receiving cavity of the liftable guardrail of this utility model;
[0022] Figure 8 This is a schematic diagram showing the engagement state of the locking tongue and the middle locking tongue receiving cavity of the liftable guardrail of this utility model.
[0023] In the diagram, 1-bed surface, 2-post, 21-slide groove, 22-locking tongue receiving cavity, 23-wedge surface, 24-locking position mark, 25-horizontal rail stop, 3-head rail, 4-foot rail, 5-side rail, 5a-liftable rail, 51-handrail, 52a-first link, 52b-second link, 53-locking tongue, 54a-first handle, 54b-second handle, 55-handle seat, 56-rotating plate, 57-horizontal rail, 58-vertical rail. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.
[0026] In the description of the embodiments of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0027] Please see Figures 1-5This utility model provides a technical solution: a multi-locking safety nursing bed, comprising a horizontally arranged bed surface 1, the bed surface 1 being rectangular, with uprights 2 connected to the four corners of the bed surface 1, and the bed surface 1 connected to the middle of the uprights 2. A headboard guardrail 3, a footboard guardrail 4, and side rails 5 are connected between the uprights 2. Two side rails 5 are provided, at least one of which is a height-adjustable guardrail 5a. A handrail 51 is horizontally arranged at the upper end of the height-adjustable guardrail 5a. The uprights 2 and the two height-adjustable guardrails 5a... The side ends are longitudinally connected with grooves 21, and a handrail 51 is slidably connected between the two grooves 21. A first connecting rod 52a and a second connecting rod 52b are rotatably inserted in the handrail 51. The first connecting rod 52a leads to the upright 2 connected to the headboard 3, and the second connecting rod 52b leads to the upright 2 connected to the footboard 4. Locking tongues 53 are fixedly connected to the ends of the first connecting rod 52a leading to the headboard 3 and the second connecting rod 52b leading to the footboard 4, respectively. The upright 2 is provided with The structure is hollow, with the locking tongues 53 extending into the hollow structure of the upright 2. The inner wall of the side end of the upright 2 connected to the headboard 3 or footboard 4 is connected to a locking tongue receiving cavity 22. The locking tongues 53 are adapted to the locking tongue receiving cavity 22. The outer end of the locking tongue receiving cavity 22 opposite to its mounting surface is set as a wedge-shaped surface 23 with a higher top and lower bottom, and the opening of the locking tongue receiving cavity 22 faces upward. A locking position mark 24 is affixed to the outer side of the upright 2 at the position opposite to the locking tongue receiving cavity 22. The first connecting rod 52a is connected to the first handle 54. a. The first handle 54a passes through a corresponding hole on the armrest 51 and is fixedly connected to the first connecting rod 52a; the second connecting rod 52b is connected to the second handle 54b, which passes through a corresponding hole on the armrest 51 and is fixedly connected to the second connecting rod 52b; the first handle 54a and the second handle 54b are respectively connected to torsion springs, and the torsion spring force causes the lower end of the locking tongue 53 to abut against the inner wall of the side end where the column 2 connects to the headboard guardrail 3 or the footboard guardrail 4, and the locking tongue receiving cavity 22 is arranged in multiple sets.It should be noted that: the mounting surface of the latch receiving cavity 22 refers to the connection surface and contact surface between the latch receiving cavity 22 and the inner wall of the upright 2, which is also the mounting surface; the multiple sets of latch receiving cavities 22 mean that the latch receiving cavities 22 are respectively set in the upright 2 connected to the headboard guardrail 3 and the upright 2 connected to the footboard guardrail 4, and are set opposite to each other, and are set in multiple sets; the significance of setting multiple sets of latch receiving cavities 22 is that it can realize multiple height adjustments of the heightable guardrail 5a to adapt to different scenarios. For child safety, a first handle 54a and a second handle 54b are provided. During operation, both hands are placed on the armrest 51, with each hand corresponding to the first handle 54a and the second handle 54b respectively. Pulling the armrest 51 upwards engages the latch 53 with the upper latch receiving cavity 22. There is no need to flip the latch 53 outwards; the latch 53 automatically rotates adaptively as it passes the wedge-shaped surface 23 of the latch receiving cavity 22, stopping above the desired latch receiving cavity 22, and then moving downwards to engage the latch. 53 engages and locks with the latch cavity 22; when moving the handrail 51 downwards to engage the latch 53 with the lower latch cavity 22, both hands must simultaneously rotate the first handle 54a and the second handle 54b respectively to avoid non-target latch cavities 22 until reaching above the target latch cavity 22. Release both hands, and the first handle 54a and the second handle 54b will reset under the action of the torsion springs. Simultaneously, the latch 53 will reset to abut against the inner wall of the side end where the upright 2 connects to the headboard or footboard 4. Continue moving downwards... When the locking tongue 53 is engaged, it enters the adjacent locking tongue receiving cavity 22 below and locks. Since the first handle 54a and the second handle 54b require both hands to control simultaneously, safety is enhanced, and the unexpected descent of the height-adjustable guardrail 5a due to accidental touch by a child can be avoided. When both bed side guardrails 5 are set as height-adjustable guardrails 5a, the directional nature of the nursing bed itself can be eliminated. That is, as needed, the child caregiver can approach the bed from different directions on the side of the bed without affecting the height adjustment of the bed side guardrail 5 on the approaching side.
[0028] Please see Figures 4-5In this embodiment, a handle base 55 is also provided, which is fixed on the liftable guardrail 5a. The handle base 55 is respectively provided with a first handle 54a and a second handle 54b. The first handle 54a and the second handle 54b are rotatably mounted on their respective handle bases 55. A torsion spring is provided between the first handle 54a and the second handle 54b and their respective handle bases 55. The torsion spring force causes the first handle 54a and the second handle 54b to be engaged with their respective handle bases 55. A rotating plate 56 is also provided on the handle base 55. When the first handle 54a rotates, it drives one end of the corresponding rotating plate 56 to rotate. The rotating plate 56 passes through a corresponding hole on the handrail 51 and is fixedly connected to the first connecting rod 52a at the other end. When the second handle 54b rotates, it drives one end of the corresponding rotating plate 56 to rotate. The rotating plate 56 passes through a corresponding hole on the handrail 51 and is fixedly connected to the second connecting rod 52b at the other end. It should be noted that the rotation process corresponding to the first handle 54a or the second handle 54b is as follows: By overcoming the torsion spring force, flip the first handle 54a or the second handle 54b, causing one end of the rotating plate 56 on the corresponding handle seat 55 to rotate. The other end of the rotating plate 56 then drives the first connecting rod 52a or the second connecting rod 52b. Since the first connecting rod 52a or the second connecting rod 52b is rotatably mounted inside the handrail 51, the rotating plate 56 rotates around the axis of the first connecting rod 52a or the second connecting rod 52b, simultaneously causing the locking tongue 53 connected to the first connecting rod 52a or the second connecting rod 52b to rotate. Because the first handle 54a or the second handle 54b requires both hands to operate simultaneously to control the downward movement of the liftable guardrail 5a, accidental activation by children can be prevented. The connection between the first handle 54a and the corresponding locking tongue 53 can be found in the following reference. Figures 4-5 The connection status of the second handle 54b and the corresponding locking tongue 53 is set accordingly.
[0029] Please see Figure 6 In this embodiment, the lower end of the liftable guardrail 5a is horizontally provided with a horizontal bar 57. Both ends of the horizontal bar 57 are connected to the sliding grooves 21 of the uprights 2. Multiple vertical bars 58 are provided between the handrail 51 and the horizontal bar 57. The sliding grooves 21 are connected to horizontal bar stops 25, which are located near the bottom of the uprights 2. It should be noted that by placing the horizontal bar stops 25 near the bottom of the uprights 2, the horizontal bar 57 stops when it touches the stops. This is the lowest position of the horizontal bar 57, still a certain distance from the ground corresponding to the bottom of the uprights 2, allowing caregivers space for their feet when moving around on the ground.
[0030] Please see Figure 1 , Figures 7-8In this embodiment, the vertical railing 58 is configured as a telescopic structure. When the liftable guardrail 5a is at its lowest position relative to the upright 2 and the vertical railing 58 is in a retracted state, the upper end of the handrail 51 is flush with the bed surface 1. The locking tongue receiving cavity 22 is configured in three groups. When the locking tongue 53 is engaged with the highest locking tongue receiving cavity 22 and the vertical railing 58 is in an extended state, the lower end of the horizontal railing 57 is flush with the bed surface 1. The lowest locking tongue receiving cavity 22 is higher than the bed surface 1, and the highest locking tongue receiving cavity 22 is close to the top of the upright 2. It should be specifically noted that the lowest locking tongue receiving cavity 22 refers to the group of three locking tongue receiving cavities 22 located at the lowest position within the upright 2. This facilitates caregivers in administering medication, changing diapers, and other tasks while preventing the child from slipping off the side of the bed. Figure 7 As shown; the highest locking tongue receiving cavity 22 refers to the highest position among the three sets of locking tongue receiving cavities 22 provided in the column 2. This is to prevent children from falling while climbing the railing when the caregiver is briefly away or the child is resting in bed and unattended. Figure 1 As shown; naturally, there is also the central locking tongue receiving cavity 22, corresponding to scenarios where the caregiver communicates and interacts with the child when there is still a certain distance between the caregiver and the bed, such as... Figure 8 As shown.
[0031] The working principle and usage of this utility model are as follows: The height of the liftable guardrail 5a can be adjusted by the engagement and disengagement of the locking tongue 53 and the locking tongue receiving cavity 22. Specifically, when the locking tongue 53 is engaged with the locking tongue receiving cavity 22, place both hands on the first handle 54a and the second handle 54b of the handrail 51 respectively, and pull the handrail 51 upwards to disengage the locking tongue 53 from the locking tongue receiving cavity 22. If it is necessary to adjust the height of the liftable guardrail 5a downwards, simultaneously flip the first handle 54a and the second handle 54b outwards with both hands, causing the liftable guardrail 5a to descend, thus avoiding the locking tongue. After passing through the receiving cavity 22, release the first handle 54a and the second handle 54b. At this time, the lower end of the locking tongue 53 abuts against the inner wall of the side end where the upright 2 connects to the headboard 3 or footboard 4. Continuing downwards, the locking tongue 53 will pass into the adjacent locking tongue receiving cavity 22 below. Alternatively, you can choose not to pass into the current locking tongue receiving cavity 22 and continue downwards. After passing through the current locking tongue receiving cavity 22, flip the first handle 54a and the second handle 54b outwards with both hands respectively to make the locking tongue 53 avoid the current locking tongue receiving cavity 22. If it is necessary to raise the height of the adjustable guardrail 5a, it is not necessary to flip the first handle 54a outwards. The second handle 54b is simply held by the handrail 51 and lifted upwards. As it passes the wedge-shaped surface 23 of the latch receiving cavity 22, the latch 53 automatically rotates adaptively. Once the latch 53 reaches the upper latch receiving cavity 22, the handrail 51 is lowered, allowing the latch 53 to enter the current latch receiving cavity 22, completing the high-position locking. The corresponding position on the column 2 is marked with a locking position indicator 24, indicating the corresponding lifting or lowering distance. Simultaneously, based on the sound and resistance generated when the latch 53 contacts the latch receiving cavity 22 during the lifting or lowering of the liftable railing 5a, the lifting railing can be easily operated. 5a Height Adjustment: When the adjustable guardrail 5a is at its lowest position relative to the upright 2, the horizontal bar 57 contacts the horizontal bar stop 25. At this time, if the vertical bar 58 is in the retracted state, the handrail 51 is flush with the bed surface 1, making it convenient for the child to sit with their legs hanging down on the side of the bed. The lowest position locking tongue cavity 22 is higher than the bed surface 1. At this time, pulling the handrail 51 upwards, along with the extension of the vertical bar 58, the locking tongue 53 engages with the lowest position locking tongue cavity 22 and locks. By setting the horizontal bar stop 25, the minimum height of the horizontal bar 57 from the ground is limited when the adjustable guardrail 5a is lowered, which can leave space for the child caregiver's feet to move.
[0032] It is worth noting that when the handrail 51 of the height-adjustable guardrail 5a moves upward, there is no need to flip the first handle 54a and the second handle 54b. Therefore, although it may lead to accidental operation by children, the result of such operation is only that the height-adjustable guardrail 5a will be raised, and thus it will not reduce the safety of the bed side guardrail 5.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A multi-locking safety nursing bed, comprising a horizontally arranged bed surface (1), the bed surface (1) being rectangular, wherein each of the four corners of the bed surface (1) is connected to a column (2), and the bed surface (1) is connected to the middle of the column (2), and the column (2) is connected to a headboard guardrail (3), a footboard guardrail (4), and a side rail (5), wherein there are two side rails (5), characterized in that, At least one bedside rail (5) is configured as a height-adjustable rail (5a). The height-adjustable rail (5a) has a handrail (51) horizontally arranged at its upper end. The upright (2) is longitudinally provided with grooves (21) on the sides connecting to the two ends of the height-adjustable rail (5a). The handrail (51) is slidably connected between the two grooves (21). A first connecting rod (52a) and a second connecting rod (52b) are rotatably inserted in the handrail (51). The first connecting rod (52a) leads to the connection with the headboard rail (3). The upright (2) has a second connecting rod (52b) leading to the upright connected to the foot rail (4). The end of the first connecting rod (52a) leading to the head rail (3) and the end of the second connecting rod (52b) leading to the foot rail (4) are respectively fixedly connected with locking tongues (53). The upright (2) is configured as a hollow structure, and the locking tongues (53) all extend into the hollow structure of the upright (2). The inner wall of the side end of the upright (2) connected to the head rail (3) or the foot rail (4) is connected to a locking tongue accommodating device. The cavity (22) is fitted with the latch (53) and the latch receiving cavity (22). The outer end of the latch receiving cavity (22) opposite to its mounting surface is set as a wedge-shaped surface (23) with the upper part higher than the lower part. The latch receiving cavity (22) opens upward. A locking position mark (24) is pasted on the outer side of the column (2) opposite to the latch receiving cavity (22). The first connecting rod (52a) is connected to the first handle (54a). The first handle (54a) passes through the corresponding hole on the handrail (51) and connects with the first... The connecting rod (52a) is fixedly connected; the second connecting rod (52b) is connected to the second handle (54b), and the second handle (54b) passes through the corresponding hole on the armrest (51) and is fixedly connected to the second connecting rod (52b); the first handle (54a) and the second handle (54b) are respectively connected to torsion springs, and the torsion spring force causes the lower end of the locking tongue (53) to abut against the inner wall of the side end where the column (2) is connected to the headboard guardrail (3) or the footboard guardrail (4), and the locking tongue receiving cavity (22) is arranged in multiple sets.
2. The multi-locking safety nursing bed according to claim 1, characterized in that, A handle base (55) is also provided, which is fixed to the liftable guardrail (5a). The handle base (55) is respectively provided with a first handle (54a) and a second handle (54b). The first handle (54a) and the second handle (54b) are respectively rotatably mounted on their respective handle bases (55). A torsion spring is respectively provided between the first handle (54a) and the second handle (54b) and their respective handle bases (55). The force of the torsion spring causes the first handle (54a) and the second handle (54b) to respectively... The handle (54a) is fastened to the corresponding handle seat (55), and the handle seat (55) is also provided with a rotating plate (56). When the first handle (54a) rotates, it drives one end of the corresponding rotating plate (56) to rotate, and the rotating plate (56) passes through the corresponding hole provided on the handrail (51), and the other end is fixedly connected to the first connecting rod (52a); when the second handle (54b) rotates, it drives one end of the corresponding rotating plate (56) to rotate, and the rotating plate (56) passes through the corresponding hole provided on the handrail (51), and the other end is fixedly connected to the second connecting rod (52b).
3. A multi-locking safety nursing bed according to any one of claims 1-2, characterized in that, The lower end of the liftable guardrail (5a) is horizontally provided with a horizontal rail (57). The two ends of the horizontal rail (57) are respectively connected to the sliding groove (21) of the column (2). Multiple vertical rails (58) are provided between the handrail (51) and the horizontal rail (57). The sliding groove (21) is connected to the horizontal rail stop (25), and the horizontal rail stop (25) is located near the bottom of the column (2).
4. A multi-locking safety nursing bed according to claim 3, characterized in that, The vertical railing (58) is designed to be retractable. When the liftable guardrail (5a) is at its lowest position relative to the column (2) and the vertical railing (58) is in a retracted state, the upper end of the handrail (51) is flush with the bed surface (1). The locking tongue receiving cavity (22) is configured in 3 groups. When the locking tongue (53) is engaged with the highest locking tongue receiving cavity (22) and the vertical railing (58) is in an extended state, the lower end of the horizontal railing (57) is flush with the bed surface (1). The lowest locking tongue receiving cavity (22) is higher than the bed surface (1), and the highest locking tongue receiving cavity (22) is close to the top of the column (2).