A bed guard facilitating the getting up of a pregnant woman

Abstract

The application relates to the field of sickbed guardrails, in particular to a sickbed guardrail facilitating the getting-up of pregnant women. The sickbed guardrail facilitating the getting-up of pregnant women comprises a positioning rod, a pressing plate, a vertical rod and a horizontal rod, and further comprises: a handheld traction component which is axially movably installed on the positioning rod and comprises a first sliding seat and a handle rotatably connected to the first sliding seat; an elastic reset component which is axially movably installed on the positioning rod and is connected with the handheld traction component through a tension spring; an automatic driving mechanism which is fixed to one end of the positioning rod and is drivingly connected with the handheld traction component; a first locking piece and a second locking piece which are respectively arranged on the handheld traction component and the elastic reset component and are used for locking the first sliding seat and the second sliding seat on the positioning rod. The sickbed guardrail facilitating the getting-up of pregnant women provided by the application solves the problem that pregnant women have difficulty in getting up due to insufficient physical strength, and is especially suitable for pregnant women with weak arm strength or insufficient physical strength.

Description

Technical Field

[0001] This invention relates to the field of hospital bed rails, and more particularly to a hospital bed rail that helps pregnant women get up. Background Technology

[0002] During the mid-to-late stages of pregnancy, as the abdomen gradually enlarges and the center of gravity shifts forward, the burden on the back muscles increases, making it increasingly difficult for pregnant women to get up. Especially when getting up from bed, pregnant women often need external assistance to complete the movement from lying down to sitting up and then standing.

[0003] Existing hospital bed rails are typically steel frames that are fixedly installed on the side of the bed. Their main function is to prevent patients from falling out of bed and to provide lateral protection. When a pregnant woman needs to get up, she can only hold onto the horizontal bar of the rail and rely on her own arm strength to pull herself up from a lying position to a sitting position.

[0004] However, the following defects and shortcomings still exist in the application implementation process: Pregnant women need to overcome their own weight to get up, which is very strenuous for pregnant women with weak arm strength or lack of physical strength, and they may not even be able to get up independently. Secondly, when standing up by gripping a fixed horizontal bar, the wrist is in an unnatural angle of force, which can easily cause wrist injury or tenosynovitis over time.

[0005] Therefore, it is necessary to provide a new bed rail that helps pregnant women get up and solve the above-mentioned technical problems. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention provides a bed rail that helps pregnant women get up.

[0007] The bed rail provided by this invention, which helps pregnant women get up, includes a positioning rod, a pressure plate, a vertical bar, and a horizontal bar, and also includes: A handheld traction component, axially movable and mounted on the positioning rod, includes a first slide and a handle rotatably connected to the first slide, for pregnant women to hold and use to lift themselves up; An elastic reset component is axially movable and mounted on the positioning rod. It is connected to the handheld traction component via a tension spring and is used to drive the handheld traction component to reset. An automatic drive mechanism, fixed to one end of the positioning rod, is connected to the handheld traction component for automatic movement. The first locking member and the second locking member are respectively disposed on the hand-held traction member and the elastic reset member, and are used to lock the first slide and the second slide onto the positioning rod.

[0008] Preferably, the positioning rod has an axially extending first groove and a second groove on its circumferential outer wall. The second groove is composed of a first type of groove on the circumferential outer wall of the positioning rod and a second type of groove concentrically opened inside the positioning rod, and the two are interconnected. The second type of groove has an axially extending groove on its inner circumference, and a number of ratchet teeth are evenly distributed along its length at the bottom of the axial groove.

[0009] Preferably, the first slide block is slidably fitted inside the first slide groove, and a first axial slide rod that is slidably fitted inside the second slide groove is integrally connected to the first slide block; The upper end of the first slide is integrally connected to a first hinge seat, a second hinge seat is rotatably connected to the first hinge seat, and a handle is rotatably connected to the second hinge seat; The handle is tilted at an angle relative to the horizontal direction via a first hinge seat, and can be switched between a use state and a storage state via a second hinge seat.

[0010] Preferably, a locking frame is fixed on the first slide and on one side of the first hinge seat. The locking frame has a clamping groove. When the handle is in the retracted state, the handle rod is embedded in the clamping groove and clamped and fixed by the locking frame.

[0011] Preferably, the elastic reset component includes a second slide block and a second axial slide rod integrally connected to the second slide block. The second slide block is slidably installed in the first slide groove, and the second axial slide rod is slidably engaged inside the second slide groove. One end of the tension spring is fixedly connected to the first axis slide rod, and the other end is fixedly connected to the second axis slide rod.

[0012] Preferably, the first locking member includes a first pawl rotatably connected to the circumferential surface of the first axis slide bar via a rotating shaft, and a first torsion spring is also sleeved on the rotating shaft; The first slide block and the first axial slide rod are provided with light holes corresponding to the position of the first pawl. A push rod slides through the light hole. A baffle is fixed on the push rod and a spring is sleeved on it. One end of the spring abuts against the inner wall of the light hole and the other end abuts against the baffle. One end of the push rod can pass through the light hole and squeeze the first pawl. The other end of the push rod has an integrally connected force-bearing section that extends into the clamping groove of the locking frame. The handle can contact and squeeze the force-bearing section to drive the push rod to slide axially against the elastic force of the spring.

[0013] Preferably, the second locking member includes a second pawl rotatably connected to the circumferential surface of the second axis slide bar via a rotating shaft, and a second torsion spring is also sleeved on the rotating shaft; The second slide is threaded with a second threaded rod. One end of the second threaded rod can abut against the second pawl, and the other end of the second threaded rod extends to the top of the second slide and is fixed with a knob.

[0014] Preferably, the automatic drive mechanism includes a mounting cylinder fixed to one end of the positioning rod, a motor fixed inside the mounting cylinder, and a winding roller fixed to the output end of the motor; The mounting cylinder is also fixed with multiple sets of positioning frames. Each set of positioning frames is rotatably connected to a guide pulley. A steel cable is wound on the winding roller. The steel cable passes through each guide pulley in sequence and is led out into the second type of groove. One end of the first axial slide bar is threadedly connected to a first threaded rod, and the other end of the first threaded rod is fixed with a buckle. The end of the steel cable is fixed to the buckle by a clamp.

[0015] Preferably, a groove is provided on one side of the handle, and a button is provided inside the groove. The button is connected to the motor signal and is used to control the start and stop of the motor.

[0016] Compared with related technologies, the bed rail provided by this invention, which helps pregnant women get up, has the following beneficial effects: 1. The automatic drive mechanism uses a motor to drive the winding roller to wind up the steel cable, pulling the first slide and handle forward automatically. Pregnant women only need to hold the handle and press the button to easily get up. The entire process requires no effort from the pregnant woman, solving the problem of difficulty in getting up due to insufficient physical strength. It is especially suitable for pregnant women with weak arm strength or lack of stamina. Moreover, the handle can be adjusted at the tilt angle through the first hinge seat, so that the pregnant woman's wrist is in a natural and comfortable position when holding it, avoiding wrist injury caused by prolonged unnatural force angle.

[0017] 2. By adjusting the fixed position of the second slide on the positioning rod through the second locking element, the starting position of the first slide is changed, thereby making a personalized fit according to the height and arm length of the pregnant woman, so that the pregnant woman can hold the handle in the most comfortable position and achieve the best effect of getting up. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the bed rail that helps pregnant women get up, provided by the present invention; Figure 2 This is a schematic diagram of the structure of the present invention; Figure 3 This is a schematic diagram of the crossbar structure shown in this invention; Figure 4 As shown in this invention Figure 1 A partial structural diagram; Figure 5This is a schematic diagram of the structure of the handheld traction component and the elastic reset component connected together as shown in this invention; Figure 6 This is a schematic diagram of the handheld traction component shown in the present invention. Figure 1 ; Figure 7 This is a schematic diagram of the handheld traction component shown in the present invention. Figure 2 ; Figure 8 This is a schematic diagram of the handheld traction component shown in the present invention. Figure 3 ; Figure 9 This is a schematic diagram of the structure of the elastic reset member shown in this invention; Figure 10 This is a schematic diagram of the automatic drive mechanism shown in the present invention.

[0019] Labels in the diagram: 1. Positioning rod; 2. Pressure plate; 3. Vertical rod; 4. Horizontal rod; 5. First slide groove; 6. Second slide groove; 7. Axial groove; 8. Racket tooth; 9. First slide block; 10. First axial slide rod; 11. First threaded rod; 12. Snap ring; 13. First hinge seat; 14. Second hinge seat; 15. Handle; 16. Groove; 17. Button; 18. Locking bracket; 19. Clamping groove; 20. First ratchet tooth 21. Claw; 22. First torsion spring; 23. Clear hole; 24. Top rod; 25. Stop plate; 26. Spring; 27. Force-bearing section; 28. Second slide block; 29. ​​Second shaft slide rod; 30. Second torsion spring; 31. Second threaded rod; 32. Knob; 33. Tension spring; 34. Mounting cylinder; 35. Motor; 36. Winding roller; 37. Positioning frame; 38. Guide pulley; 39. Steel cable. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0022] Please see Figures 1 to 10The bed rail for assisting pregnant women in getting up, provided in this embodiment of the invention, includes a positioning rod 1, pressure plates 2, vertical bars 3, and horizontal bars 4. The positioning rod 1 is horizontally positioned on the side of the bed, with multiple pressure plates 2 fixedly connected to one side by bolts. The pressure plates 2 are spaced apart along the length of the positioning rod 1. The pressure plates 2 can be inserted into the gap between the bed board and the mattress, using the relative clamping action of the bed board and mattress to securely fix the positioning rod 1 without requiring any modification to the bed itself. Multiple vertical bars 3, linearly and evenly distributed along the length of the positioning rod 1, are vertically fixed to the upper end of the positioning rod 1. The horizontal bars 4 are horizontally positioned and fixed to the upper ends of the vertical bars 3, thus forming a stable and sturdy bed rail frame structure together with the positioning rod 1 and the vertical bars 3.

[0023] The positioning rod 1 has an axially extending first groove 5 and a second groove 6 on its outer circumferential wall. The second groove 6 consists of two parts: a first type of groove on the outer circumferential wall of the positioning rod 1, and a second type of groove concentrically formed inside the positioning rod 1, which are interconnected to form a complete slide. An axially extending axial groove 7 is also formed on the inner circumferential wall of the second type of groove, and several ratchet teeth 8 are evenly distributed along its length at the bottom of the axial groove 7. Therefore, the positioning rod 1 serves not only as a supporting component of the guardrail but also as a sliding guide rail.

[0024] A handheld traction component and a resilient return component are axially movable on the crossbar 4. When a pregnant woman needs to get up, she can grasp the handheld traction component and obtain upward pulling assistance by sliding it along the axis of the crossbar 4 to help her complete the getting up action. The resilient return component is used to help the handheld traction component automatically return to the starting position after a single assisted getting up, for the next use.

[0025] The handheld traction component includes a first slide block 9, which is slidably installed inside a first slide groove 5 and can slide freely along the axial direction of the first slide groove 5. A first axial slide rod 10 is integrally connected to the first slide block 9, and the first axial slide rod 10 is slidably fitted inside a second slide groove 6. A first hinge seat 13 is integrally connected to the upper end of the first slide block 9, and a second hinge seat 14 is rotatably connected to the first hinge seat 13. A handle 15 is rotatably connected to the second hinge seat 14.

[0026] The handle 15 can rotate around a first horizontal axis via the first hinge seat 13 to adjust its tilt angle relative to the horizontal direction, with an adjustment range of 0°-90°. That is, the handle 15 can be freely adjusted between a horizontal state (0°) and a vertical state (90°), allowing for targeted adjustment based on the natural bending angle of the pregnant woman's wrist, preventing the wrist from being in an unnatural stress state for extended periods and preventing wrist injury. The handle 15 can rotate around a second horizontal axis (perpendicular to the first horizontal axis) via the second hinge seat 14 to switch between its active and inactive states. In the active state, the handle 15 can be angled via the first hinge seat 13 to provide the pregnant woman with the most comfortable grip posture; in the inactive state, the handle 15 can be folded for storage, with its axis parallel to the axis of the positioning rod 1, reducing space occupation and preventing accidental bumping of the handle 15 by the pregnant woman during daily activities.

[0027] A locking frame 18 is also fixed on the first slide 9 and on one side of the first hinge seat 13. The locking frame 18 has a clamping groove 19. When the handle 15 is in a non-use state (i.e., folded and stored state), the handle 15 can be precisely inserted into the clamping groove 19 of the locking frame 18 and is elastically clamped and fixed by the locking frame 18 to prevent it from accidentally coming out due to gravity or vibration.

[0028] The elastic reset component includes a second slide block 27. A second axial slide rod 28 is integrally connected to the second slide block 27, and its structure is the same as that of the first slide block 9 and the first axial slide rod 10, also slidingly engaged within the first and second slide grooves 5 and 6. A tension spring 33 is fixed to one end of the second axial slide rod 28, concentrically positioned within the second type of groove, and its other end is fixedly connected to the first axial slide rod 10. In use, the pregnant woman holds the handle 15 to assist in standing up. The first slide block 9 slides forward against the elastic force of the tension spring 33 as the pregnant woman moves, while the second slide block 27 remains stationary. After the pregnant woman finishes standing up, the elastic force of the tension spring 33 drives the first slide block 9 to slide in the opposite direction, automatically returning to its initial position.

[0029] The handheld traction component and the elastic reset component are respectively equipped with a first locking element and a second locking element, used to fix the first slide 9 and the second slide 27 to specific positions on the positioning rod 1. Fixing the second slide 27 ensures that the tension spring 33 exerts a stable pulling force on the first slide 9 to assist its reset; fixing the first slide 9 restricts its movement when not in use. If the first slide 9 is not locked, accidental contact may cause it to slip, and if the external force acting on the first slide 9 is suddenly removed, the first slide 9 will quickly rebound under the elastic force of the tension spring 33, posing a safety hazard.

[0030] The first locking element includes a first pawl 20 rotatably connected to the circumferential surface of the first axial slide bar 10 via a rotating shaft. The first pawl 20 can extend into the axial groove 7 and engage with the ratchet 8, thereby achieving one-way locking of the first slide block 9. A first torsion spring 21 is also sleeved on the rotating shaft. Under the elastic force of the first torsion spring 21, the first pawl 20 remains retracted into the first axial slide bar 10, at which time the first axial slide bar 10 can slide freely in the second type of groove. The first slide block 9 and the first axial slide bar 10 are provided with light holes 22 corresponding to the position of the first pawl 20. A push rod 23 slides through the light holes 22. One end of the push rod 23 can extend out of the light holes 22 and squeeze the first pawl 20, forcing it to overcome the elastic force of the first torsion spring 21 and rotate outward until its end extends into the axial groove 7 and engages with the ratchet 8 for locking. The other end of the push rod 23 has an integrally connected force-bearing section 26 that extends into the clamping groove 19 of the locking frame 18.

[0031] When the handle 15 is in a non-use state (i.e., folded and stored), the rod of the handle 15 is inserted into the clamping groove 19 of the locking bracket 18, and at the same time contacts and presses the force-bearing section 26, pushing the push rod 23 to move towards the first pawl 20. The end of the push rod 23 presses against the first pawl 20, causing it to rotate outward against the elastic force of the first torsion spring 21, and engage with the ratchet 8 to lock, thereby locking the first slide 9 in the current position.

[0032] It should be noted that the first pawl 20 only restricts the movement of the first slide 9 in a direction away from the second slide 27 (i.e., forward).

[0033] A stop plate 24 is also fixed to the push rod 23, and a spring 25 is fitted on it. One end of the spring 25 abuts against the inner wall of the light hole 22, and the other end abuts against the stop plate 24. In the free state, the elastic force of the spring 25 pushes the push rod 23 to move towards the locking frame 18, causing the end of the push rod 23 to retract and not exert force on the first pawl 20.

[0034] The second locking element includes a second pawl 29 rotatably connected to the circumferential surface of the second shaft slide bar 28 via a rotating shaft. The second pawl 29 can also extend into the axial groove 7 and engage with the ratchet tooth 8 to achieve one-way locking of the second slide block 27 (locking direction is the same as the first pawl 20). A second torsion spring 30 is sleeved on the rotating shaft, and its working principle is the same as that of the first pawl 20. A second threaded rod 31 is threadedly connected to the second slide block 27. One end of the second threaded rod 31 can abut against the second pawl 29. By screwing it in, the pressure on the second pawl 29 can be increased, keeping it engaged with the ratchet tooth 8. The other end of the second threaded rod 31 extends to the top of the second slide block 27 and is fixed with a knob 32. The operator can manually rotate the knob 32 to adjust the locking state of the second pawl 29.

[0035] It should be noted that in the free state, the tension spring 33 is at its natural length (unstressed). Therefore, the fixed position of the second slide 27 determines the starting position of the first slide 9. When the second slide 27 is closer to the end of the positioning rod 1, the starting position of the first slide 9 is also closer to the end; conversely, when the second slide 27 is closer to the center of the positioning rod 1, the starting position of the first slide 9 is also closer to the center. This design allows for flexible adjustment of the starting position of the handle 15, which can be personalized according to the pregnant woman's height, arm length, and other factors, allowing the pregnant woman to hold the handle 15 in the most comfortable position and achieve the best effect in assisting her to get up.

[0036] It also includes an automatic drive mechanism, which is connected to the first axis slide bar 10 for automatically moving the first axis slide bar 10 and the handle 15. The automatic drive mechanism includes a mounting cylinder 34 fixed to one end of the positioning rod 1. A motor 35 is fixed inside the mounting cylinder 34, and a winding roller 36 is fixed to the output end of the motor 35. A steel cable 39 is wound on the winding roller 36. Multiple sets of positioning frames 37 are also fixed inside the mounting cylinder 34, and each set of positioning frames 37 is rotatably connected to a guide pulley 38. The steel cable 39 passes through each guide pulley 38 in sequence and is then led out. The guide pulleys 38 are arranged so that the winding roller 36 has an optimal winding angle for the steel cable 39 to reduce friction and wear of the steel cable 39 during the winding and unwinding process. The other end of the steel cable 39 extends into the second type of groove.

[0037] Meanwhile, one end of the first axis slide bar 10 (the end closest to the automatic drive mechanism) is threadedly connected to a first threaded rod 11, and the other end of the first threaded rod 11 is fixed with a retaining ring 12. The end of the steel cable 39 is fixed to the retaining ring 12 by a clamp. When the motor 35 drives the winding roller 36 to rotate in the forward direction to wind up the steel cable 39, the steel cable 39 pulls the first slide block 9 to move towards the automatic drive mechanism. When the pregnant woman has finished getting up, the motor 35 drives the winding roller 36 to rotate in the reverse direction to release the steel cable 39. At this time, under the elastic force of the tension spring 33, the first slide block 9 moves in the reverse direction until it returns to the starting position (the tension spring 33 returns to its natural length).

[0038] Since the steel cable 39 remains taut in any state, it always exerts a sliding restriction effect on the first slide block 9 in one direction. Therefore, the first pawl 20 only needs to restrict the sliding of the first slide block 9 in the other direction. The two work together to achieve bidirectional locking and controllable release of the first slide block 9.

[0039] A recessed groove 16 is provided on one side of the handle 15 (corresponding to the natural placement of the thumb when the pregnant woman holds it). The contour of the groove 16 is adapted to the shape of the thumb pad, which facilitates positioning and provides a comfortable pressing feel. A button 17 is set inside the groove 16. The button 17 is connected to the motor 35 and is used to control the start and stop of the motor 35. When the pregnant woman holds the handle 15 and prepares to get up, her thumb naturally falls into the groove 16. Pressing the button 17 will start the motor 35. The motor 35 drives the winding roller 36 to wind up the steel cable 39, thereby pulling the first slide 9 and the handle 15 forward to help the pregnant woman get up smoothly. Releasing the button 17 will stop the motor 35. The design of embedding the button 17 in the groove 16 has the effect of preventing accidental touch. That is, when not in use, even if the pregnant woman or others accidentally touch the surface of the handle 15, the button 17 will not be accidentally pressed because it is inside the groove 16, thus avoiding the safety risk caused by the accidental movement of the first slide 9 due to the accidental start of the motor 35. Meanwhile, the recessed structure of groove 16 can also serve as a positioning guide when pregnant women hold the device, allowing them to accurately locate button 17 without having to look down, thus improving the convenience and safety of use.

[0040] The specific operating principle of this device is as follows: Step 1: Place the positioning rod 1 horizontally on the side of the bed. Insert each pressure plate 2 into the gap between the bed board and the mattress in sequence, using the relative clamping action of the bed board and the mattress to firmly fix the positioning rod 1. Adjust the position of the second slide 27 by turning the knob 32 according to the pregnant woman's height and arm length. Loosen the second threaded rod 31 to release the engagement between the second pawl 29 and the ratchet 8. Move the second slide 27 along the positioning rod 1 to the appropriate position, then tighten the second threaded rod 31 to lock the second pawl 29 into engagement with the ratchet 8. The position of the second slide 27 determines the starting position of the first slide 9, thus adapting to the usage needs of pregnant women of different body types.

[0041] The second step: Take out the handle 15, which is folded and stored in the locking bracket 18 slot 19, to release the pressure on the force-bearing section 26 at the end of the push rod 23. At this time, the spring 25 pushes the push rod 23 to reset, and the first pawl 20 retracts into the first axis slide rod 10 under the elastic force of the first torsion spring 21, releasing the lock on the first slide block 9. Rotate the handle 15 to the use position through the second hinge seat 14, and then adjust the tilt angle of the handle 15 with the horizontal direction (0°-90°) through the first hinge seat 13 so that the pregnant woman's wrist is at a natural and comfortable angle when holding it, avoiding wrist injury.

[0042] Step 3: The pregnant woman extends her hand to handle 15, with her thumb naturally falling into groove 16, and the other fingers gripping the handle 15. Her thumb presses button 17 within groove 16, sending a signal to start motor 35. Motor 35 drives winding roller 36 to rotate forward, winding up steel cable 39. Steel cable 39, through buckle 12 and first threaded rod 11, pulls first axis slide rod 10 and first slide block 9 towards motor 35, causing handle 15 to move synchronously. The pregnant woman's body gradually rises from a lying position to a sitting position as handle 15 moves, completing the sitting motion. During the sitting process, the pregnant woman can release button 17 at any time to stop motor 35, allowing her to remain in any position. Step 4: After the pregnant woman gets up, she releases button 17, and motor 35 stops. Motor 35 reverses, winding roller 36 releases steel cable 39, and under the elastic force of tension spring 33, the first slide 9 and handle 15 automatically slide backward to reset to their initial position (i.e., the starting position defined by the second slide 27). During the reset process, the first pawl 20 and ratchet 8 are in a non-engaging state, and the sliding is smooth.

[0043] The reverse rotation of motor 35 can be set with an independent switch, or button 17 can be designed as a dual-position push switch.

[0044] Fifth step: After use, rotate the handle 15 to a retracted state parallel to the axis of the positioning rod 1 via the second hinge seat 14, and insert the handle 15 into the clamping groove 19 of the locking frame 18. During the insertion of the handle 15, the rod of the handle 15 contacts and presses the force-bearing section 26 of the push rod 23, pushing the push rod 23 towards the first pawl 20. The end of the push rod 23 presses against the first pawl 20, causing it to overcome the elastic force of the first torsion spring 21, rotate outward, and extend into the axial groove 7, engaging and locking with the ratchet 8. At this time, the first slide 9 is locked in the current position and cannot slide forward, preventing the first slide 9 from sliding due to accidental contact and causing safety hazards.

[0045] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A bed rail that helps pregnant women get up, comprising a positioning rod (1), a pressure plate (2), a vertical rod (3), and a horizontal rod (4), characterized in that, Also includes: A handheld traction component is axially movable and mounted on the positioning rod (1), including a first slide (9) and a handle (15) rotatably connected to the first slide (9), for pregnant women to hold and lift themselves up; An elastic reset component is axially movable and mounted on the positioning rod (1), and is connected to the handheld traction component via a tension spring (33) for driving the handheld traction component to reset; An automatic drive mechanism is fixed to one end of the positioning rod (1) and is connected to the hand-held traction component for driving the hand-held traction component to move automatically; The first locking member and the second locking member are respectively disposed on the hand-held traction member and the elastic reset member, and are used to lock the first slide (9) and the second slide (27) onto the positioning rod (1).

2. The bed rail for assisting pregnant women in getting up according to claim 1, characterized in that, The positioning rod (1) has an axially extending first groove (5) and a second groove (6) on its circumferential outer wall. The second groove (6) is composed of a first type of groove opened on the circumferential outer wall of the positioning rod (1) and a second type of groove opened concentrically inside the positioning rod (1), and the two are connected to each other. The second type of groove has an axially extending axial groove (7) on its circumferential inner wall, and the inner bottom of the axial groove (7) has a number of ratchet teeth (8) evenly distributed along its length.

3. The bed rail for assisting pregnant women to get up according to claim 2, characterized in that, The first slide block (9) is slidably fitted inside the first slide groove (5), and a first axial slide rod (10) is integrally connected to the first slide block (9) and slidably fitted inside the second slide groove (6). The upper end of the first slide (9) is integrally connected to a first hinge seat (13), and a second hinge seat (14) is rotatably connected to the first hinge seat (13), and a handle (15) is rotatably connected to the second hinge seat (14). The handle (15) is tilted at an angle relative to the horizontal direction by means of the first hinge (13), and can be switched between the use state and the storage state by means of the second hinge (14).

4. The bed rail for assisting pregnant women to get up according to claim 3, characterized in that, A locking frame (18) is fixed on the first slide (9) and on one side of the first hinge seat (13). The locking frame (18) has a clamping groove (19). When the handle (15) is in the retracted state, the rod of the handle (15) is embedded in the clamping groove (19) and clamped and fixed by the locking frame (18).

5. The bed rail for assisting pregnant women to get up according to claim 4, characterized in that, The elastic reset component includes a second slide block (27) and a second axial slide rod (28) integrally connected to the second slide block (27). The second slide block (27) is slidably installed in the first slide groove (5), and the second axial slide rod (28) is slidably engaged in the second slide groove (6). One end of the tension spring (33) is fixedly connected to the first axis slide rod (10), and the other end is fixedly connected to the second axis slide rod (28).

6. The bed rail for assisting pregnant women to get up according to claim 5, characterized in that, The first locking component includes a first pawl (20) rotatably connected to the circumferential surface of the first axis slide bar (10) via a rotating shaft, and a first torsion spring (21) is also sleeved on the rotating shaft. The first slide block (9) and the first axial slide rod (10) are provided with light holes (22) corresponding to the position of the first pawl (20). A push rod (23) is slidably inserted in the light hole (22). A baffle (24) is fixed on the push rod (23) and a spring (25) is sleeved on it. One end of the spring (25) abuts against the inner wall of the light hole (22) and the other end abuts against the baffle (24). One end of the push rod (23) can pass through the light hole (22) and squeeze the first pawl (20). The other end of the push rod (23) has an integrally connected force-bearing section (26). The force-bearing section (26) extends into the groove (19) of the locking frame (18). The handle (15) can contact and squeeze the force-bearing section (26) to drive the push rod (23) to slide axially against the elastic force of the spring (25).

7. The bed rail for assisting pregnant women to get up according to claim 6, characterized in that, The second locking component includes a second pawl (29) rotatably connected to the circumferential surface of the second axis slide bar (28) via a rotating shaft, and a second torsion spring (30) is also sleeved on the rotating shaft. The second slide (27) is threaded with a second threaded rod (31), one end of which can abut against the second pawl (29), and the other end of which extends to the top of the second slide (27) and is fixed with a knob (32).

8. The bed rail for assisting pregnant women to get up according to claim 7, characterized in that, The automatic drive mechanism includes a mounting cylinder (34) fixed to one end of the positioning rod (1), a motor (35) fixed inside the mounting cylinder (34), and a winding roller (36) fixed to the output end of the motor (35). The mounting cylinder (34) is also fixed with multiple sets of positioning frames (37), and each set of positioning frames (37) is rotatably connected with a guide pulley (38). A steel cable (39) is wound on the winding roller (36), and the steel cable (39) passes through each guide pulley (38) in sequence and is led out to the inside of the second type of groove. One end of the first axial slide bar (10) is threadedly connected to a first threaded rod (11), and the other end of the first threaded rod (11) is fixed with a buckle (12). The end of the steel cable (39) is fixed to the buckle (12) by a clip.

9. The bed rail for assisting pregnant women to get up according to claim 8, characterized in that, A groove (16) is provided on one side of the handle (15), and a button (17) is provided inside the groove (16). The button (17) is connected to the motor (35) and is used to control the opening and closing of the motor (35).

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