Foldable nursing bed board

Abstract

The utility model discloses a kind of foldable nursing bed boards, comprising: two bed boards, containing groove, bed leg, locking mechanism and positioning mechanism, two the bed board is hinged together by hinge, the containing groove is opened in the bottom of bed board.Compared with prior art, by the locking mechanism set, after two bed boards fold in place, the locking of two bed boards can be quickly realized, locking structure is stable, effectively prevent the accidental unfolding of bed board under folding state, improve the convenience of use;When the bed leg is unfolded to working position by the positioning mechanism set, positioning mechanism can be positioned and fixed to bed leg, enhance the connection strength between bed leg and bed board main body, ensure that bed leg always maintains stable support state after unfolding, avoid the problem of shaking, deviation, provide safe, stable lying support environment for patient.

Description

Technical Field

[0001] This utility model relates to the field of nursing equipment technology, and in particular to a foldable nursing bed board. Background Technology

[0002] In medical and home care settings, nursing bed boards serve as the core component supporting patients, and their structural rationality directly impacts ease of use, transportation efficiency, and storage costs. Currently, nursing bed boards on the market are mainly divided into two categories: one-piece structures and simple folding structures. While one-piece nursing bed boards, due to their integrated molding design, possess structural stability, they also have significant limitations: they cannot be folded for storage, requiring considerable transport space and increasing logistics costs. Furthermore, they occupy substantial indoor space when not in use, making them particularly unsuitable for small medical institutions or homes with limited space.

[0003] Existing simple folding nursing bed boards typically use hinges or other basic connectors to link multiple bed board units to achieve a basic folding function in order to solve the space occupation problem of a one-piece bed board. However, this type of simple folding structure still has key technical defects:

[0004] On the one hand, the bed lacks an effective locking device after folding, relying solely on the friction of the hinges to maintain the folded state. During transportation, handling, or storage, the bed board is prone to accidental unfolding due to external force, vibration, or other factors, which may not only damage the bed board itself but also pose safety hazards. On the other hand, the accompanying bed leg structure also lacks a reliable positioning mechanism. After unfolding, the bed legs are supported only by mechanical splicing, resulting in insufficient connection strength. During patient use, such as lying down or turning over, wobbling and shifting are likely to occur, affecting the support stability and safety of the nursing bed board and failing to meet the core requirement of bed board stability in nursing scenarios.

[0005] Therefore, developing a nursing bed board that combines convenient folding, reliable locking in the folded state, and stable support after unfolding has become a pressing technical problem to be solved in the industry. Utility Model Content

[0006] The main purpose of this invention is to provide a foldable nursing bed board, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: a foldable nursing bed board, comprising:

[0008] Two bed boards are hinged together.

[0009] A receiving groove is provided at the bottom of the bed board;

[0010] Bed legs, which are rotatably mounted in receiving slots;

[0011] A locking mechanism is provided on the bed board and is used to lock the two bed boards after they are folded.

[0012] A positioning mechanism is provided in a receiving groove, and the positioning mechanism can position the bed legs after they are unfolded.

[0013] The locking mechanism includes a locking shell fixedly mounted on one of the bed boards and an ear plate fixedly mounted on the other bed board. A passage opening is provided on one side wall of the locking shell. A locking rod is rotatably inserted into the ear plate. One end of the locking rod is fixedly connected to a locking element that matches the shape of the passage opening, and the other end of the locking rod is fixedly connected to a handle.

[0014] As a further description of the above technical solution, the positioning mechanism includes a rotating shaft rotatably mounted on the upper side wall of the receiving groove, a cam fixedly sleeved on the rotating shaft, a cavity inside the cam, a sliding disk slidably mounted inside the cavity, a pull rod fixedly connected to the lower side wall of the sliding disk and a locking pin fixedly connected to the upper side wall, a clamping spring sleeved on the outer side of the pull rod, one end of the clamping spring being fixedly connected to the sliding disk and the other end being fixedly connected to the lower side wall of the cavity.

[0015] As a further description of the above technical solution, a limiting sleeve is fixedly connected to one side wall of the ear plate, and four positioning grooves are equally spaced on the inner wall of the limiting sleeve. A positioning protrusion that matches the positioning groove is fixedly connected to the outer side wall of the locking rod.

[0016] As a further description of the above technical solution, two locking holes adapted to the locking pins are provided on the upper side wall of the receiving groove.

[0017] As a further description of the above technical solution, the positioning protrusion is made of rubber and has a semi-circular cross-section.

[0018] As a further description of the above technical solution, the bed legs are provided with slots that are adapted to the cam.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. With the locking mechanism in place, the two bed boards can be quickly locked and fixed after they are folded into place. The locking structure is stable and effectively prevents the bed boards from accidentally unfolding when folded, thus improving the convenience of use.

[0021] 2. Through the positioning mechanism, when the bed legs are extended to the working position, the positioning mechanism can limit and fix the bed legs, which enhances the connection strength between the bed legs and the main body of the bed board, ensures that the bed legs maintain a stable support state after being extended, avoids swaying and displacement, and provides patients with a safe and stable lying support environment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a foldable nursing bed board according to the present invention;

[0023] Figure 2 This is a schematic diagram of the bottom structure of a foldable nursing bed board according to the present invention;

[0024] Figure 3 This is a schematic diagram of the folded structure of a foldable nursing bed board according to the present invention;

[0025] Figure 4 This is a schematic diagram of the locking mechanism of a foldable nursing bed board according to the present invention;

[0026] Figure 5 This is a schematic diagram of the limiting sleeve structure of a foldable nursing bed board according to the present invention;

[0027] Figure 6 This is a schematic diagram of the working structure of the legs of a foldable nursing bed board according to this utility model;

[0028] Figure 7 This is a cam cross-sectional view of a foldable nursing bed board according to the present invention;

[0029] Figure 8 This is a schematic diagram of the card hole structure of a foldable nursing bed board according to the present invention.

[0030] In the diagram: 1. Bed board; 2. Receiving groove; 3. Bed leg; 4. Locking mechanism; 5. Positioning mechanism; 41. Locking housing; 43. Ear plate; 42. Passage port; 44. Locking rod; 45. Locking element; 46. Handle; 51. Rotating shaft; 52. Cam; 53. Cavity; 54. Sliding disc; 55. Pull rod; 56. Locking pin; 57. Anti-locking spring; 431. Limiting sleeve; 432. Positioning groove; 441. Positioning protrusion; 21. Locking hole; 31. Groove. Detailed Implementation

[0031] To make the technical means, creative features, and objectives of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms installation, setting, connection, etc., should be interpreted broadly. For example, connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Please see Figure 1-8This utility model provides a foldable nursing bed board, comprising: two bed boards 1, a receiving groove 2, bed legs 3, a locking mechanism 4, and a positioning mechanism 5. The two bed boards 1 are made of high-strength medical-grade board material to ensure structural strength and stability when supporting patients. The two bed boards 1 are hinged together by hinges made of corrosion-resistant, smooth-rotating stainless steel, allowing the two bed boards 1 to rotate relative to each other around the hinge axis, realizing the unfolding and folding storage functions of the bed boards 1, solving the problem of large space occupation by integral bed boards. The receiving groove 2 is located at the bottom of each bed board 1, and its size is adapted to the structure of the bed legs 3, providing storage space for the bed legs 3. When the bed board 1 is folded for storage, the bed legs 3 can rotate into the receiving groove 2, preventing the bed legs 3 from being exposed and occupying extra space, while protecting the bed legs 3 from damage and improving the convenience of transportation and storage. The bed legs 3 are made of hollow steel tube material, reducing the overall weight while ensuring support strength. Their rotation is set within the receiving groove 2, and they are connected to the side wall of the receiving groove 2 via a pivot, allowing rotation around the pivot. When unfolded, the bed legs 3 are perpendicular to the bottom of the bed board 1, providing stable support for the bed board 1; when folded, they fit snugly against the inner wall of the receiving slot 2 for compact storage. The locking mechanism 4, located at corresponding positions on the two bed boards 1, is a key structure ensuring the stability of the bed board 1 after folding. It includes two locking shells 41 fixed to one bed board 1 and two ear plates 43 fixed to the other bed board 1. The through-holes 42 on the side walls of the locking shells 41 provide a passage for the locking elements 45 on the ear plates 43. The locking rod 44 is rotatably inserted into the ear plates 43, with one end connected to the locking element 45, which is shaped to fit the through-hole 42, and the other end connected to a handle 46. When both bed boards 1 are folded into place, the locking element 45 can pass through the through-hole 42. Rotating the handle 46 causes the locking rod 44 and the locking element 45 to rotate, making the locking element 45 vertical. In the vertical state, the locking element 45 cannot pass through the through-hole 42 on the locking shell 41, thus locking the two bed boards 1 together and preventing the bed boards 1 from accidentally unfolding during transportation or storage. The positioning mechanism 5 is installed in the receiving groove 2 and is used for positioning and fixing the bed leg 3 after it is unfolded, thereby improving the support stability of the bed leg 3. By restricting the rotational freedom of the bed leg 3, it ensures that the bed leg 3 always maintains a vertical support state after it is unfolded, preventing the bed leg 3 from shaking or shifting when the patient uses it, and ensuring safety during use.

[0035] Further explanation: The positioning mechanism 5 includes a rotating shaft 51, a cam 52, a cavity 53, a sliding disc 54, a pull rod 55, a locking pin 56, and a clamping spring 57. The rotating shaft 51, made of stainless steel, is rotatably mounted on the upper side wall of the receiving groove 2, providing a mounting carrier and rotational support for the cam 52, allowing it to rotate flexibly around the shaft 51. The cam 52 is fixedly sleeved on the rotating shaft 51. The rotation of the cam 52 allows it to engage or disengage with the bed leg 3. When the bed leg 3 is unfolded, the cam 52 tightly abuts against the bed leg 3, limiting its rotation through contour limiting. The cavity 53 is located inside the cam 52, providing mounting space for the sliding disc 54, pull rod 55, locking pin 56, and clamping spring 57, creating a linkage structure among the components. The sliding disc 54 is slidably mounted within the cavity 53, its outer wall tightly fitting against the inner wall of the cavity 53 and sliding smoothly, transmitting force. It can slide up and down along the cavity 53 under the elastic force of the clamping spring 57. A pull rod 55 is fixedly connected to the lower side wall of the sliding disk 54, extending to the outside of the cam 52. This allows the operator to control the position of the sliding disk 54 by pulling the pull rod 55, thereby adjusting the extension and retraction of the locking pin 56. The locking pin 56 is fixedly connected to the upper side wall of the sliding disk 54, with a hemispherical end for easy engagement with the locking hole 21 on the receiving groove 2. Under the action of the retaining spring 57, the locking pin 56 can be inserted into the locking hole 21 to position the cam 52; pulling the pull rod 55 can disengage the locking pin 56 from the locking hole 21, releasing the locking of the cam 52. The retaining spring 57 is sleeved on the outside of the pull rod 55, with one end fixedly connected to the sliding disk 54 and the other end fixedly connected to the lower side wall of the cavity 53. It is always in a compressed state, providing an upward elastic force to the sliding disk 54, ensuring that the locking pin 56 is stably inserted into the locking hole 21, and guaranteeing the locking reliability of the positioning mechanism 5.

[0036] To further explain, a limiting sleeve 431 is fixedly connected to one side wall of the ear plate 43. Four positioning grooves 432 are equidistantly provided on the inner wall of the limiting sleeve 431. The limiting sleeve 431 is coaxially arranged with the locking rod 44. The four positioning grooves 432 provide limiting points for the positioning protrusions 441, restricting the rotation angle of the locking rod 44. The four positioning grooves 432 are distributed at 90° intervals and are adapted to the positioning protrusions 441. When the positioning protrusions 441 are engaged in different positioning grooves 432, 90° interval positioning of the locking rod 44 can be achieved, corresponding to the locked or unlocked state of the locking member 45. Positioning protrusions 441 adapted to the positioning grooves 432 are fixedly connected to the outer wall of the locking rod 44. These protrusions rotate synchronously with the locking rod 44. Their cooperation with the positioning grooves 432 can fix the position of the locking rod 44, preventing accidental rotation of the locking member 45 and improving the stability of the locking mechanism 4.

[0037] To further explain, the upper side wall of the receiving groove 2 has two locking holes 21 that are adapted to the locking pin 56. The two locking holes 21 correspond to the locking position and the unlocking position of the cam 52, respectively. When the locking pin 56 is inserted into the locking hole 21 in the locking position, the protruding end of the cam 52 fits tightly against the inner wall of the groove 31 of the bed leg 3, restricting the rotation of the bed leg 3; when the locking pin 56 is inserted into the locking hole 21 in the unlocking position, the protruding end of the cam 52 disengages from the bed leg 3, and the bed leg 3 can rotate freely for storage.

[0038] To further explain, the positioning protrusion 441 is made of rubber with a semi-circular cross-section. The rubber material provides elasticity and wear resistance, reducing wear when mating with the positioning groove 432 and extending its service life. The semi-circular cross-section allows the positioning protrusion 441 to smoothly engage and disengage from the positioning groove 432, resulting in a smoother operation and ensuring stability after mating.

[0039] To further explain, the bed leg 3 has a slot 31 that matches the cam 52, which can prevent the cam 52 from obstructing the bed leg 3 from retracting into the receiving slot 2.

[0040] It should be noted that this utility model is a foldable nursing bed board. In use, the operator holds the handles 46 on both sides of the two bed boards 1 with both hands and rotates the handles 46. At this time, the locking rod 44 drives the positioning protrusion 441 to disengage from the positioning groove 432 within the limiting sleeve 431, continuing to rotate 90° until the locking member 45 switches from a vertical locking state to a horizontal passing state. Then, pull the handles 46 outwards, causing the locking member 45 to pass through the through-hole 42 of the locking housing 41, releasing the folding lock of the two bed boards 1. Hold the edges of the two bed boards 1 with both hands and slowly pull in opposite directions, causing the two bed boards 1 to rotate around the hinge joint. During this process, keep the hinge rotating smoothly until the two bed boards 1 are fully unfolded and on the same horizontal plane. At this point, the supporting surface of the bed boards 1 is flat, allowing for the subsequent unfolding of the bed legs 3. The operator then places their hand into the receiving groove 2 at the bottom of the bed board 1, grasps the pull rod 55 of the positioning mechanism 5, and pulls it downwards. Pull rod 55 drives sliding disc 54 to compress clamping spring 57, sliding downward along cavity 53 of cam 52 until locking pin 56 completely disengages from corresponding locking hole 21 on receiving groove 2, releasing the position lock of cam 52. Keeping pull rod 55 pulled down, grasp the lower end of bed leg 3, pull outward and slowly rotate bed leg 3, causing bed leg 3 to rotate around its connecting axis with receiving groove 2. Continue rotating until bed leg 3 is fully extended, i.e., bed leg 3 is perpendicular to the bottom of bed board 1, at which point the supporting end of bed leg 3 contacts the ground. Keeping bed leg 3 vertical, rotate cam 52 and slowly release pull rod 55. Clamping spring 57 returns to its original deformation, pushing sliding disc 54 upward, causing locking pin 56 to move upward until locking pin 56 inserts into corresponding locking hole 21 on receiving groove 2, fixing the position of cam 52. At this time, the protruding end of cam 52 tightly abuts against the side wall of bed leg 3, limiting the rotation of bed leg 3 towards receiving groove 2 through contour limiting, completing the positioning of bed leg 3. Repeat the above steps to complete the unfolding and positioning of all bed legs 3. The bed board 1 is then ready for use, allowing the patient to lie down or sit safely. When folding is required, reach into the receiving groove 2 again and pull down the lever 55 to disengage the locking pin 56 from the locking hole 21. The reversing cam 52 releases the contour limit on the bed leg 3. Rotate the bed leg 3 inward, causing it to rotate around the connecting axis towards the receiving groove 2, until the bed leg 3 is fully inserted into the receiving groove 2. At this point, the slot 31 on the bed leg 3 precisely accommodates the cam 52, avoiding interference. Then release the lever 55, and the locking pin 56 inserts into the corresponding unlocked locking hole 21, fixing the position of the cam 52. Hold the edges of the two bed boards 1 with both hands and slowly rotate them in opposite directions to fold the two bed boards 1 around the hinge joint. During the process, ensure that the bed legs 3 are completely retracted into the receiving groove 2 to avoid the bed legs 3 being exposed and causing obstruction, until the surfaces of the two bed boards 1 are completely flush, completing the folding. During the folding process, the locking element 45 at the end of the locking rod 44 aligns with the passage 42 of the locking shell 41 on the other bed board 1 and is inserted into the locking shell 41.Then, rotate handle 46 90° to switch locking rod 44 and locking element 45 from the horizontal passing state to the vertical locking state. At the same time, the positioning protrusion 441 on locking rod 44 engages with the corresponding positioning groove 432 on limiting sleeve 431. Through the locking action of locking element 45 and locking shell 41, and the limiting action of positioning protrusion 441 and positioning groove 432, the double locking of the two bed boards 1 after folding is completed. Ensure the folded state is stable, and then it can be transported or stored.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A foldable nursing bed board, characterized in that, include: Two bed boards (1) are hinged together by means of a hinge; A receiving groove (2) is provided at the bottom of the bed board (1); Bed legs (3), which are rotatably disposed within receiving grooves (2); Locking mechanism (4), the locking mechanism (4) is disposed on the bed board (1), the locking mechanism (4) is used to lock the two bed boards (1) after folding; Positioning mechanism (5), which is set in the receiving groove (2), can position the bed leg (3) after it is unfolded; The locking mechanism (4) includes two locking shells (41) fixedly mounted on one of the bed boards (1) and two ear plates (43) fixedly mounted on the other bed board (1). A passage opening (42) is provided on one side wall of the locking shell (41). A locking rod (44) is rotatably inserted into the ear plate (43). A locking element (45) adapted to the shape of the passage opening (42) is fixedly connected to one end of the locking rod (44), and a handle (46) is fixedly connected to the other end of the locking rod (44).

2. The foldable nursing bed board according to claim 1, characterized in that, The positioning mechanism (5) includes a rotating shaft (51) rotatably mounted on the upper side wall of the receiving groove (2). A cam (52) is fixedly sleeved on the rotating shaft (51). The cam (52) has a cavity (53). A sliding disk (54) is slidably mounted in the cavity (53). A pull rod (55) is fixedly connected to the lower side wall of the sliding disk (54), and a locking pin (56) is fixedly connected to the upper side wall. A clamping spring (57) is sleeved on the outer side of the pull rod (55). One end of the clamping spring (57) is fixedly connected to the sliding disk (54), and the other end is fixedly connected to the lower side wall of the cavity (53).

3. The foldable nursing bed board according to claim 1, characterized in that, A limiting sleeve (431) is fixedly connected to one side wall of the ear plate (43). Four positioning grooves (432) are equally spaced on the inner wall of the limiting sleeve (431). A positioning protrusion (441) that matches the positioning groove (432) is fixedly connected to the outer wall of the locking rod (44).

4. A foldable nursing bed board according to claim 2, characterized in that, The upper side wall of the receiving groove (2) has two locking holes (21) that are adapted to the locking pin (56).

5. A foldable nursing bed board according to claim 3, characterized in that, The positioning protrusion (441) is made of rubber and has a semi-circular cross-section.

6. A foldable nursing bed board according to claim 2, characterized in that, The bed leg (3) has a slot (31) that matches the cam (52).

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