Adjustable auxiliary protection device for children in maternal and child health care

Abstract

The present application relates to the technical field of medical apparatus and discloses a kind of adjustable auxiliary protection device for maternal and child health children, including threaded adjusting mechanism, its structure includes the side guardrail capable of producing protection to the both sides of bed board, limiting base is installed in the both sides of bed board and can produce longitudinal limiting function to side guardrail, horizontal crossbeam capable of driving two side guardrails synchronous motion and outer thread rod capable of indirectly rotating with the rotor of driving motor and driving horizontal crossbeam movement.The adjustable auxiliary protection device for maternal and child health children, utilize the longitudinal movement produced when rotating of screw structure to carry out height adjustment to two side guardrails, have compact and single effect in force transmission aspect, have the characteristics of high power output rate, in addition, the device can effectively prevent the occurrence of negative events caused by torsional resistance overload.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an adjustable auxiliary protection device for maternal and child health care. Background Technology

[0002] Conventional childcare beds primarily allow children to rest alone on them, preventing dangers such as falls that can occur when children rest on non-dedicated beds. Therefore, using a childcare bed is crucial. Common childcare beds mainly consist of a bed frame and bed boards, including two bed frames at the front and back, and two bed frames on the sides. The bottom of the bed frame generally has a height adjustment function. However, current childcare beds are generally segmented, meaning they have multiple adjustment options. But when the childcare bed is pushed next to an adult's bed for care, the height adjustment often does not match the height of the adult's bed, causing many inconveniences. When the height is too high or too low, there is a certain risk of falling.

[0003] To this end, Chinese Patent Publication No. CN114948489A discloses "An Adjustable Assistive Care and Protection Device for Maternal and Child Health Care," whose main structure includes two headboards with a movable bed board between them. A fixed plate is located below the movable bed board, and anti-fall components are provided at both ends of the movable bed board. This adjustable assistive care and protection device for maternal and child health care converts power into longitudinal force via a linkage to control the device's ascent, reducing the longitudinal volume of the adjustment device. Furthermore, since hydraulic oil is used as the power source, the height can be controlled simply by adjusting the amount of hydraulic oil entering the device, which can be easily controlled via a solenoid valve. This avoids the problems of traditional devices with segmented adjustments leading to difficulty in matching the height to the main bed height and poor stability during adjustment, achieving free stepless adjustment and allowing it to quickly adapt to the main bed height to meet nursing needs.

[0004] However, in reality, the aforementioned adjustable auxiliary nursing protection device for maternal and child health uses a hydraulic cylinder to generate a power output source, and then uses a connecting rod to convert horizontal displacement into longitudinal displacement, which increases the cost of using the equipment, makes the overall structure complex, and the multi-stage linkage between components leads to a relatively low power output rate. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an adjustable auxiliary protection device for maternal and child health care. It utilizes the longitudinal movement generated by the rotating threaded structure to adjust the height of the side rails. In terms of force transmission, it features a compact and simple structure with high power output. Furthermore, this device effectively prevents negative events caused by torsional resistance overload, thus solving the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable auxiliary protection device for maternal and child health care, comprising a bed board with support legs installed at the bottom, headboard guardrails installed at the head and tail of the bed board, and a motor mounting base located directly below the bed board and on which a drive motor is installed, and further comprising a threaded adjustment mechanism, the structure of which includes side guardrails that can protect both sides of the bed board, a limiting base installed on both sides of the bed board that can provide longitudinal limiting function for the side guardrails, a horizontal beam that can drive the two side guardrails to move synchronously, and an external threaded rod that can indirectly rotate with the rotor of the drive motor and drive the horizontal beam to move.

[0007] Preferably, the threaded adjustment mechanism further includes two movable base plates located on both sides of the bed board. A side guardrail is fixedly installed on the upper surface of each movable base plate. Multiple longitudinal guardrails with equal spacing are fixedly installed between the movable base plates and the side guardrails. One end of the limiting base is fixedly installed on both sides of the bed board. The limiting base is provided with longitudinal sliding holes for sliding the longitudinal guardrails. The middle parts of the two movable base plates are fixedly connected by a horizontal beam. The center of the horizontal beam is provided with an internal threaded hole that is connected to the rod body of the external threaded rod through a threaded structure. The top end of the external threaded rod is provided with an upper limit plate integrally formed with it. The bottom end of the external threaded rod is provided with a No. 1 coupling integrally formed with it.

[0008] Preferably, the thread structure includes an internal thread structure disposed on the inner wall of the internal thread hole and an external thread structure disposed on the external thread rod body, and the internal thread structure and the external thread structure are adapted to each other.

[0009] Preferably, the structural radius of the upper limit plate and the structural radius of the first coupling are both greater than the structural radius of the pitch circle of the external thread rod.

[0010] Preferably, it also includes an overload protection mechanism, the structure of which includes a hollow disc that can rotate with the rotor of the drive motor, an inner rotating column that can drive the first coupling to rotate, and an arc-shaped contact plate that can link the hollow disc and the inner rotating column by means of friction.

[0011] Preferably, the overload protection mechanism further includes a helical spring. One end face of the hollow disc is provided with a concave shaft fixing groove. The rotor of the drive motor is fixedly installed inside the shaft fixing groove. A cylindrical component mounting cavity is provided at the center of the hollow disc. A shaft mounting hole is provided at the center of one end of the hollow disc. The shaft of the rotating shaft is mounted inside the shaft mounting hole via a bearing. An inner rotating column is placed at the center of the cylindrical component mounting cavity. A second coupling is provided at the center of one end of the inner rotating column. The second coupling is fixedly connected to the first coupling. The hollow disc is located at the... The periphery of the cylindrical component mounting cavity is provided with multiple annular array-shaped longitudinal component movable cavities. The circumferential side surfaces of the longitudinal component movable cavities and the cylindrical component mounting cavity are connected by a through hole of a first shaft. The hollow disk body has an inner movable plate that can move along the axial direction of the cylindrical component mounting cavity inside the cylindrical component mounting cavity. A helical spring is installed at one end of the inner movable plate, and a connecting shaft that passes through the through hole of the first shaft is fixedly installed at the other end of the inner movable plate. An arc-shaped abutment plate that abuts against the circumferential surface of the inner rotating column is fixedly installed at one end of the connecting shaft located inside the cylindrical component mounting cavity.

[0012] Preferably, one end of the helical spring abuts against one end face of the inner movable plate, and the other end abuts against one end face of the movable cavity of the longitudinal component, and the helical spring is in a compressed state.

[0013] Preferably, the structural radius of the concave surface of the arc-shaped contact plate matches the structural radius of the inner rotating column.

[0014] Compared with the prior art, the present invention provides an adjustable auxiliary protection device for maternal and child health care, which has the following beneficial effects: The height of the guardrails on both sides is adjusted by the longitudinal movement generated by the rotation of the threaded structure. It has a compact and simple structure in terms of force transmission and has the characteristics of high power output rate. In addition, the device can effectively prevent negative events caused by torsional resistance overload. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the present invention; Figure 3 This is a perspective view of the threaded adjustment mechanism in this invention; Figure 4 This is a three-dimensional cross-sectional view of the threaded adjustment mechanism in this invention; Figure 5 This is a perspective view of the overload protection mechanism in this invention; Figure 6 This is a three-dimensional cross-sectional view of the overload protection mechanism in this invention.

[0016] The components include: 1. Bed board; 2. Headboard guardrail; 3. Support legs; 4. Motor mounting base; 5. Drive motor; 6. Threaded adjustment mechanism; 61. Moving base plate; 62. Side guardrail; 63. Longitudinal guardrail; 64. Limiting base; 65. Longitudinal sliding hole; 66. Horizontal beam; 67. Internal threaded hole; 68. External threaded rod; 69. No. 1 coupling; 610. Upper limit plate; 7. Overload protection mechanism; 71. Hollow disc; 72. Shaft fixing groove; 73. Column component mounting cavity; 74. Shaft mounting hole; 75. Longitudinal component movable cavity; 76. Shaft through hole; 77. Inner movable plate; 78. Helical spring; 79. Arc-shaped contact plate; 710. Inner rotating column; 711. No. 2 coupling; 712. Rotating shaft. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1 and Figure 2 An adjustable auxiliary protection device for maternal and child health care includes a bed board 1 with support legs 3 installed at the bottom, a headboard guardrail 2 installed at the head and tail of the bed board 1, and a motor mounting base 4 located directly below the bed board 1 and equipped with a drive motor 5. First, the bedding is laid on the upper surface of the bed board 1, and the headboard guardrail 2 can prevent infants and young children from falling from the head or tail of the bed.

[0019] To enable the longitudinal height adjustment function of the side guardrail 62, please refer to... Figure 1 , Figure 2 , Figure 3 and Figure 4 A threaded adjustment mechanism 6 needs to be installed, which includes side guardrails 62 that can protect both sides of the bed board 1, a limiting base 64 installed on both sides of the bed board 1 that can limit the longitudinal movement of the side guardrails 62, a horizontal beam 66 that can drive the two side guardrails 62 to move synchronously, and an external threaded rod 68 that can indirectly rotate with the rotor of the drive motor 5 and drive the horizontal beam 66 to move. The rotating external threaded rod 68 is connected to the horizontal beam 66 by the thread structure, which causes the horizontal beam 66 to move longitudinally. By controlling the direction of rotation of the drive motor 5, the direction of movement of the horizontal beam 66 can be controlled. The longitudinally moving horizontal beam 66 will drive the side guardrails 62 to move longitudinally, thereby realizing the longitudinal height adjustment function of the side guardrails 62.

[0020] For details regarding the specific structure of the threaded adjustment mechanism 6, please refer to [link / reference]. Figure 3 and Figure 4 It also includes two movable base plates 61 located on both sides of the bed board 1. A side guardrail 62 is fixedly installed on the upper surface of each movable base plate 61. A plurality of longitudinal guardrails 63 with equal spacing are fixedly installed between the movable base plate 61 and the side guardrails 62. One end of the limiting base 64 is fixedly installed on both sides of the bed board 1. The limiting base 64 is provided with longitudinal sliding holes 65 for sliding the longitudinal guardrails 63. The middle parts of the two movable base plates 61 are fixedly connected by a horizontal beam 66. The center of the horizontal beam 66 is provided with a threaded structure that connects to the outer... The threaded rod 68 has an internal threaded hole 67 connected to its body. The top end of the external threaded rod 68 is provided with an upper limit plate 610 integrally formed with it. The bottom end of the external threaded rod 68 is provided with a first coupling 69 integrally formed with it. The thread structure includes an internal thread structure located on the inner circumference of the internal threaded hole 67 and an external thread structure located on the body of the external threaded rod 68. The internal thread structure is adapted to the external thread structure. The structural radius of the upper limit plate 610 and the structural radius of the first coupling 69 are both larger than the structural radius of the pitch circle of the external threaded rod 68.

[0021] To effectively prevent negative events caused by torsional resistance overload, please refer to [link / reference needed]. Figure 1 , Figure 2 , Figure 5 and Figure 6 An overload protection mechanism 7 needs to be installed. Its structure includes a hollow disc 71 that can rotate with the rotor of the drive motor 5, an inner rotating column 710 that can drive the first coupling 69 to rotate, and an arc-shaped contact plate 79 that can link the hollow disc 71 and the inner rotating column 710 by friction. When the horizontal beam 66 abuts against the upper limit plate 610 and the first coupling 69 respectively, the continued rotation of the external thread rod 68 will cause the torque resistance to increase. However, during the rotation, once the torque strength between the threaded structures is greater than the force formed by the maximum static friction between the inner rotating column 710 and the arc-shaped contact plate 79, the relative rotation between the hollow disc 71 and the arc-shaped contact plate 79 will not cause the torque resistance to continue to increase, thereby effectively preventing the occurrence of negative events caused by torsional resistance overload.

[0022] For details regarding the specific structure of the overload protection mechanism 7, please refer to [link / reference]. Figure 5 and Figure 6It also includes a helical spring 78. One end face of the hollow disc 71 is provided with a concave shaft fixing groove 72. The rotor of the drive motor 5 is fixedly installed inside the shaft fixing groove 72. A cylindrical component mounting cavity 73 is provided at the center of the hollow disc 71. A shaft mounting hole 74 is provided at the center of one end of the hollow disc 71. The shaft of the rotating shaft 42 is mounted inside the shaft mounting hole 74 via a bearing. An inner rotating column 710 is placed at the center of the cylindrical component mounting cavity 73. A second coupling 711 is provided at the center of one end of the inner rotating column 710. The second coupling 711 is fixedly connected to the first coupling 69. Multiple annular array-shaped longitudinal component movable cavities 75 are provided around the cylindrical component mounting cavity 73 of the hollow disc 71. The longitudinal component movable cavities 75 and the cylindrical component mounting cavity 73... The circumferential sides of the 3 are connected by a first shaft through hole 76. The hollow disc 71 has an inner movable plate 77 that can move along the axial direction of the cylindrical component mounting cavity 73 inside the cylindrical component mounting cavity 73. A helical spring 78 is installed at one end of the inner movable plate 77, and a connecting shaft that passes through the first shaft through hole 76 is fixedly installed at the other end of the inner movable plate 77. An arc-shaped abutting plate 79 that abuts against the circumferential surface of the inner rotating column 710 is fixedly installed at one end of the connecting shaft inside the cylindrical component mounting cavity 73. One end of the helical spring 78 abuts against one end face of the inner movable plate 77, and the other end abuts against one end face of the longitudinal component movable cavity 75. The helical spring 78 is in a compressed state. The structural radius of the concave surface of the arc-shaped abutting plate 79 matches the structural radius of the inner rotating column 710.

[0023] In use, the bedding is first laid on the upper surface of the bed board 1. The headboard guardrail 2 prevents infants from falling from the head or foot of the bed. Starting the drive motor 5 causes its rotor to rotate the entire overload protection mechanism 7, which in turn rotates the external threaded rod 68. Because the threaded structure of the rotating external threaded rod 68 connects to the horizontal beam 66, the horizontal beam 66 will move longitudinally. By controlling the direction of rotation of the drive motor 5, the direction of movement of the horizontal beam 66 can be controlled. The longitudinally moving horizontal beam 66 will then cause the side guardrail 62 to move longitudinally, thereby... The longitudinal height adjustment function of the side guardrail 62 is realized. When the horizontal beam 66 abuts against the upper limit plate 610 and the first coupling 69 respectively, the continued rotation of the external thread rod 68 will cause the torque resistance to increase. However, during the rotation, once the torque strength between the threaded structures is greater than the force formed by the maximum static friction between the inner rotating column 710 and the arc-shaped contact plate 79, the relative rotation between the hollow disc 71 and the arc-shaped contact plate 79 will not cause the torque resistance to continue to increase, thereby effectively preventing the occurrence of negative events caused by torsional resistance overload.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable auxiliary protective device for maternal and child health care, comprising a bed board (1) with support legs (3) installed at the bottom, a headboard guardrail (2) installed at the head and tail of the bed board (1), and a motor mounting base (4) located directly below the bed board (1) and on which a drive motor (5) is installed, characterized in that: It also includes, The threaded adjustment mechanism (6) includes a side guardrail (62) that can protect the two sides of the bed board (1), a limiting base (64) installed on both sides of the bed board (1) and capable of longitudinally limiting the side guardrail (62), a horizontal beam (66) that can drive the two side guardrails (62) to move synchronously, and an external threaded rod (68) that can indirectly rotate with the rotor of the drive motor (5) and drive the horizontal beam (66) to move.

2. The adjustable auxiliary protection device for maternal and child health care according to claim 1, characterized in that: The threaded adjustment mechanism (6) also includes two movable base plates (61) located on both sides of the bed board (1). A side guardrail (62) is fixedly installed on the upper surface of each movable base plate (61). Multiple longitudinal guardrails (63) with equal spacing are fixedly installed between the movable base plate (61) and the side guardrails (62). One end of the limiting base (64) is fixedly installed on both sides of the bed board (1). The limiting base (64) is provided with longitudinal sliding holes (65) for sliding of the longitudinal guardrails (63). The middle parts of the two movable base plates (61) are fixedly connected by a horizontal beam (66). The center of the horizontal beam (66) is provided with an internal thread hole (67) connected to the rod body of the external thread rod (68) through a threaded structure. The top end of the external thread rod (68) is provided with an upper limit plate (610) integral with it. The bottom end of the external thread rod (68) is provided with a No. 1 coupling (69) integral with it.

3. The adjustable auxiliary protection device for maternal and child health care according to claim 2, characterized in that: The threaded structure includes an internal threaded structure located on the inner wall of the internal threaded hole (67) and an external threaded structure located on the body of the external threaded rod (68), and the internal threaded structure is adapted to the external threaded structure.

4. The adjustable auxiliary protection device for maternal and child health care according to claim 3, characterized in that: The structural radius of the upper limit plate (610) and the structural radius of the first coupling (69) are both greater than the structural radius of the pitch circle of the external thread rod (68).

5. An adjustable auxiliary protection device for maternal and child health care according to any one of claims 2-4, characterized in that: It also includes an overload protection mechanism (7), the structure of which includes a hollow disc (71) that can rotate with the rotor of the drive motor (5), an inner rotating column (710) that can drive the first coupling (69) to rotate, and an arc-shaped contact plate (79) that can link the hollow disc (71) and the inner rotating column (710) by means of friction.

6. The adjustable auxiliary protection device for maternal and child health care according to claim 5, characterized in that: The overload protection mechanism (7) also includes a helical spring (78). One end face of the hollow disc (71) is provided with a concave shaft fixing groove (72). The rotor of the drive motor (5) is fixedly installed inside the shaft fixing groove (72). A cylindrical component mounting cavity (73) is provided in the center of the hollow disc (71). A shaft mounting hole (74) is provided in the center of one end of the hollow disc (71). The shaft of the rotating shaft (42) is installed inside the shaft mounting hole (74) through a bearing. An inner rotating column (710) is placed in the center of the cylindrical component mounting cavity (73). A second coupling (711) is provided in the center of one end of the inner rotating column (710). The second coupling (711) is fixedly connected to the first coupling (69). The hollow disc (71) is in A plurality of annular array-shaped longitudinal component movable cavities (75) are provided around the cylindrical component mounting cavity (73). The longitudinal component movable cavities (75) and the circumferential side surfaces of the cylindrical component mounting cavity (73) are connected by a first shaft through hole (76). The hollow disk (71) has an inner movable plate (77) that can move along the axial direction of the cylindrical component mounting cavity (73) inside the cylindrical component mounting cavity (73). A helical spring (78) is installed at one end of the inner movable plate (77), and a connecting shaft that passes through the first shaft through hole (76) is fixedly installed at the other end of the inner movable plate (77). An arc-shaped abutting plate (79) that abuts against the circumferential surface of the inner rotating column (710) is fixedly installed at one end of the connecting shaft inside the cylindrical component mounting cavity (73).

7. The adjustable auxiliary protection device for maternal and child health care according to claim 6, characterized in that: One end of the helical spring (78) abuts against one end face of the inner movable plate (77), and the other end abuts against one end face of the longitudinal component movable cavity (75), and the helical spring (78) is in a compressed state.

8. The adjustable auxiliary protection device for maternal and child health care according to claim 7, characterized in that: The structural radius of the concave surface of the arc-shaped contact plate (79) matches the structural radius of the inner rotating column (710).

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