A parturition assisting and oxytocic device for pregnant women

Abstract

The present invention discloses a device for assisting and inducing childbirth for pregnant women, including a base, on which a resilient ball is provided. The device further includes: a ring body, which is vertically movable on the base and has a first state of limiting the horizontal movement of the resilient ball during the lifting and lowering stroke, a second state of keeping in contact with the base, and a third state of driving the resilient ball to reciprocally lift and lower; a driving assembly, which is used to drive the vertical movement of the ring body. By providing the vertically movable ring body and the driving assembly, in the first state of the ring body, the horizontal movement of the resilient ball is restricted, and the pregnant woman can stably sit on the resilient ball and actively perform pelvic exercises in the form of up and down movements; in the second state of the ring body, that is, the horizontal movement of the resilient ball is not restricted, the pregnant woman can sit on the resilient ball and perform pelvic exercises in the form of translational movements; in the third state of the ring body, it drives the resilient ball to actively lift and lower, so that the pregnant woman can passively perform pelvic exercises in the form of up and down movements.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a device for assisting and inducing labor during pregnancy and childbirth. Background Art

[0002] Devices for assisting and inducing labor during pregnancy and childbirth are generally designed to relax the pelvis of pregnant women, help the fetal head descend, reduce labor pains, and assist in the dilation of the cervix, thereby accelerating the labor process. During the use of such devices, pregnant women need to continuously do exercises. For example, a doula ball is a large, soft, and elastic ball that provides a comfortable sitting experience. When in use, the pregnant woman straddles the doula ball and sways her body horizontally with the ball or undulates up and down with the elasticity of the ball to perform the labor induction action. Existing doula ball devices can basically meet the usage requirements for assisting pregnant women in childbirth, but there are still some deficiencies that need to be improved.

[0003] Patent document CN216933857U discloses a fixing device for a doula ball used in labor assistance on July 12, 2022. Its technical solution includes: a base, a fixing frame fixedly installed on the base, a fixing ring horizontally arranged above the fixing frame, the fixing ring is installed above the fixing frame through a hydraulic rod, the bottom of the hydraulic rod is fixed on the fixing frame, a doula ball is placed in the center of the fixing ring, a fixing rod is vertically and fixedly installed on the back of the fixing frame on the base, a backrest is installed on the fixing rod, a cheek rest is installed on the backrest, a sliding sleeve is arranged at the end of the fixing rod above the backrest, a grip is fixedly installed on the sliding sleeve, and the sliding sleeve is fixed to the fixing rod through a fixing bolt. Its beneficial effects are: the structure is adjustable and has a high degree of flexibility, thus meeting the different needs of parturients with different body types; it is convenient for parturients to choose different postures for doula ball-assisted labor.

[0004] Obviously, due to the shape of the doula ball, there are certain factors of unstable support. In the prior art, fixing devices are used to limit it and improvements have been made, enhancing the practicality of the doula ball. However, such fixing devices also affect the actual use of the doula ball. For example, as mentioned above, pregnant women sway their bodies horizontally with the ball, greatly reducing the labor induction effect of the doula ball. Therefore, there is an urgent need for a device for assisting and inducing labor during pregnancy and childbirth to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for assisting and inducing labor during pregnancy and childbirth to solve the above deficiencies in the prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A parturition assisting and oxytocic device for pregnant women, comprising a base, on which an elastic ball is arranged, and further comprising: a ring body, which is arranged on the base in a liftable manner, and has a first state of limiting the horizontal movement of the elastic ball, a second state of keeping in contact with the base, and a third state of driving the elastic ball to reciprocate up and down during the lifting stroke; a driving assembly, which is used for driving the ring body to lift.

[0008] Preferably, the driving assembly comprises a plurality of sliding grooves arranged on the inner circumference of the base, sliders are movably arranged in the sliding grooves, and the upper ends of the sliders are movably connected with the ring body through connecting rods.

[0009] Preferably, an elastic member is arranged in the sliding groove, and two ends of the elastic member are respectively connected with the sliding groove and the slider.

[0010] Preferably, the driving assembly comprises a circular plate rotatably arranged in the base, a plurality of sliding grooves corresponding to the sliders one by one are arranged on the circular plate, and sliding pins movably connected with the sliding grooves are arranged on the sliders.

[0011] Preferably, a column is arranged on the base, and a handrail is arranged on the column.

[0012] Preferably, the driving assembly comprises a driving shaft rotatably arranged in the column, and the driving shaft is in transmission connection with the circular plate through a chain wheel transmission assembly.

[0013] Preferably, the driving assembly comprises a hydraulic cylinder installed in the column, a bracket is connected to the output end of the hydraulic cylinder, a sleeve is arranged on the bracket, and the sleeve is in threaded movable connection with the driving shaft.

[0014] Preferably, the driving assembly comprises a motor installed on the base, a first bevel gear is connected to the output end of the motor through an intermittent transmission assembly, and a second bevel gear matched with the first bevel gear is synchronously rotatably connected to the driving shaft.

[0015] Preferably, the second bevel gear is arranged on the driving shaft in a liftable manner, and the upper end thereof is rotatably connected to the sleeve.

[0016] Preferably, the intermittent transmission assembly comprises a first dial gear coaxially connected to the output end of the motor, and the first bevel gear is connected through a transmission shaft with a second dial gear matched with the first dial gear.

[0017] In the above technical solution, the beneficial effects of the present invention are:

[0018] The pregnant woman delivery, midwifery and labor induction device is provided with a liftable ring body and a driving component. When the ring body is in the first state, the horizontal movement of the elastic ball is restricted, and the pregnant woman can stably sit on the elastic ball and actively perform pelvic exercises in the form of up and down movements; when the ring body is in the second state, that is, the horizontal movement of the elastic ball is not restricted, the pregnant woman can sit on the elastic ball and perform pelvic exercises in the form of translational movements; when the ring body is in the third state, it drives the elastic ball to actively lift and lower, so that the pregnant woman can passively perform pelvic exercises in the form of up and down movements, saving the physical strength of the pregnant woman and greatly improving the labor induction effect of the device.

[0019] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not intended to limit the present disclosure.

[0020] This application document provides an overview of various implementations or examples of the technology described in the present disclosure and is not a full disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments recorded in the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the driving component provided by an embodiment of the present invention;

[0024] Figure 3 It is provided by an embodiment of the present invention Figure 2 The enlarged schematic diagram of part A therein;

[0025] Figure 4 It is a schematic diagram of the front view sectional structure provided by an embodiment of the present invention;

[0026] Figure 5 It is provided by an embodiment of the present invention Figure 4 The enlarged schematic diagram of part B therein;

[0027] Figure 6 [[ID= 39]]It is a schematic diagram of the side view sectional structure provided by an embodiment of the present invention.

[0028] Description of the reference numerals:

[0029] 1. Base; 2. Elastic ball; 3. Ring body; 4. Slide groove; 5. Slide block; 6. Connecting rod; 7. Elastic member; 8. Circular plate; 9. Sliding groove; 10. Sliding pin; 11. Cylinder; 12. Handrail; 13. Drive shaft; 14. Hydraulic cylinder; 15. Bracket; 16. Sleeve; 17. Motor; 18. First bevel gear; 19. Second bevel gear; 20. First shift gear; 21. Second shift gear; 22. Spiral convex; 23. Spiral groove; 24. Key block; 25. Key groove; 26. Transmission shaft. Detailed implementation manner

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present disclosure with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0031] Please refer to Figures 1-6 , a pregnant woman delivery assisting and inducing device provided by an embodiment of the present invention includes a base 1, on which an elastic ball 2 is provided, and further includes: a ring body 3, which is vertically movable on the base 1 and has a first state of limiting the horizontal movement of the elastic ball 2, a second state of keeping in contact with the base 1, and a third state of driving the elastic ball 2 to reciprocate vertically during the lifting stroke; a driving assembly for driving the ring body 3 to lift.

[0032] Specifically, the base 1 is used to carry the whole device; a backrest is provided on the base 1 for the user sitting on the elastic ball 2 to lean on and rest; universal wheels can be installed at the bottom of the base 1 to facilitate the movement of the device; the upper surface of the base 1 is usually horizontally arranged, and the bottom of the elastic ball 2 is fitted and supported on the upper surface of the base 1. The elastic ball 2 is a hollow thin-walled rubber ball filled with air inside, making it have good elasticity; in the spherical state of the elastic ball 2 when it is not subject to external force, its outer diameter is not less than the inner diameter of the ring body 3; the overall height of the elastic ball 2 and the base 1 is preferably 4-45 cm, which is suitable for the normal sitting posture of the human body. The ring body 3 is sleeved on the lower half of the elastic ball 2; the ring body 3 is lifted and lowered in a horizontal state; the inner wall of the ring body 3 is set as an inverted frustum shape, which can fit the spherical shape of the elastic ball 2, so that the ring body 3 can support the elastic ball 2. The lifting stroke of the ring body 3 is divided into a first lifting stroke and a second lifting stroke from low to high. The first state and the second state of the ring body 3 are at the upper and lower ends of the first lifting stroke, and the third state of the ring body 3 is in the second lifting stroke; when the ring body 3 is in the first lifting stroke, it is used to limit or cancel the horizontal movement of the elastic ball 2; when the ring body 3 is in the second lifting stroke, it keeps supporting the elastic ball 2 to drive the elastic ball 2 to lift and lower. Preferably, the driving component can be set as a plurality of hydraulic lifting rods or electric lifting rods that can be started synchronously. The plurality of lifting rods are symmetrically arranged on the base 1, and the output ends are fixedly connected to the ring body 3. Then, the ring body 3 is driven to lift and lower by synchronously lifting the output ends, and the three states of the ring body 3 are realized by controlling the lifting stroke of the lifting rods through a circuit. In the actual use of this technical solution, when the ring body 3 is in the first lifting stroke, when the driving component drives the ring body 3 to rise to the first state, the horizontal movement of the elastic ball 2 is restricted, and the pregnant woman can stably sit on the elastic ball 2 and actively perform pelvic exercises in the form of up and down movements. When the driving component drives the ring body 3 to descend to the second state, the horizontal movement of the elastic ball 2 is not restricted by the ring body 3, and the pregnant woman can sit on the elastic ball 2 and perform pelvic exercises in the form of translational movements; when the ring body 3 is in the second lifting stroke, the driving component drives the ring body 3 to reciprocally lift and lower, so that the ring body 3 is in the third state, and the ring body 3 can drive the elastic ball 2 to actively lift and lower, thereby enabling the pregnant woman to passively perform pelvic exercises in the form of up and down movements, saving the physical consumption of the pregnant woman and greatly improving the oxytocic effect of the device.

[0033] Compared with the prior art, a parturition assisting and oxytocic device for pregnant women proposed in the embodiment of the present invention is provided with a liftable ring body 3 and a driving assembly. When the ring body 3 is in the first state, the horizontal movement of the elastic ball 2 is restricted, and the pregnant woman can stably sit on the elastic ball 2 and actively perform pelvic exercises in the form of up and down movements; when the ring body 3 is in the second state, that is, the horizontal movement of the elastic ball 2 is not restricted, the pregnant woman can sit on the elastic ball 2 and perform pelvic exercises in the form of translational movements; when the ring body 3 is in the third state, it drives the elastic ball 2 to actively lift, so that the pregnant woman can passively perform pelvic exercises in the form of up and down movements, saving the physical strength of the pregnant woman and greatly improving the oxytocic effect of the device.

[0034] In another embodiment proposed by the present invention, the driving assembly includes a plurality of chutes 4 provided on the inner circumference of the base 1. Sliders 5 are movably arranged in the chutes 4. The upper ends of the sliders 5 are movably connected to the ring body 3 through connecting rods 6. Specifically, the preferred number of the chutes 4 is not less than three, and they are horizontally and equidistantly distributed around the axis of the ring body 3 in the base 1; a first connecting member is provided at the bottom of the ring body 3, a second connecting member is provided at the upper end of the slider 5, and both ends of the connecting rod 6 are respectively hinged to the first connecting member and the second connecting member; since the height of the end of the connecting rod 6 hinged to the second connecting member on the base 1 is fixed, when the slider 5 moves in the chute 4, the horizontal distance between both ends of the connecting rod 6 changes, and the height distance between both ends of the connecting rod 6 also changes simultaneously. Under the condition that the height of the lower end of the connecting rod 6 remains unchanged, the upper end of the connecting rod 6 will drive the ring body 3 to move up and down through the first connecting member, that is, the ring body 3 is lifted or lowered relative to the base 1. Each slider 5 moves synchronously in the corresponding chute 4, and the moving directions are simultaneously close to or away from the axis of the ring body 3. In other words, each slider 5 moves radially and synchronously away from or converges towards the axis of the ring body 3. A through groove matching the second connecting member is provided on the base 1. When the slider 5 moves in the chute 4, the second connecting member passes through the through groove for movement. The preferred number of each connecting rod 6 is the same as the preferred number of the chute 4, and they are symmetrically distributed around the chute 4 and the slider 5 in a circumferential manner. Thus, the moving directions of each connecting rod 6 will not all be on the same plane or parallel to each other. Therefore, when each slider 5 moves simultaneously towards or away from the axis of the ring body 3 in the chute 4, the ring body 3 can be lifted or lowered while maintaining a horizontal state. The following specifically describes the relationship between the movement state of the connecting rod 6 and the lifting stroke of the ring body 3:

[0035] During the first lifting stroke of the ring body 3, when the ring body 3 rises to the first state, one end of the connecting rod 6 hinged to the slider 5 remains away from the axis of the ring body 3, one end of the connecting rod 6 hinged to the ring body 3 remains away from the upper surface of the base 1, and the connecting rod 6 as a whole remains in an inclined state; when the ring body 3 descends to the second state, one end of the connecting rod 6 hinged to the slider 5 remains close to the axis of the ring body 3, one end of the connecting rod 6 hinged to the ring body 3 remains close to the upper surface of the base 1, and the connecting rod 6 as a whole remains in a state of falling and fitting on the upper surface of the base 1. During the second lifting stroke of the ring body 3, the ring body 3 is first in the first state and then switches to the third state. At this time, one end of the connecting rod 6 hinged to the slider 5 moves further away from the axis of the ring body 3, one end of the connecting rod 6 hinged to the ring body 3 moves further away from the upper surface of the base 1, and the connecting rod 6 as a whole tends to be vertical, so as to realize further lifting of the ring body 3. After the connecting rod 6 as a whole moves to the vertical state, one end of the connecting rod 6 hinged to the slider 5 moves back towards the axis of the ring body 3, one end of the connecting rod 6 hinged to the ring body 3 moves back towards the upper surface of the base 1, and the connecting rod 6 as a whole begins to tend to be inclined again, so as to realize lowering the ring body 3 again. Finally, the ring body 3 returns to the height at which it is in the first state. Then, by repeating the above process, the third state of the ring body 3 is realized.

[0036] As a preferred technical solution of this embodiment, an elastic member 7 is arranged in the chute 4. Both ends of the elastic member 7 are respectively connected to the chute 4 and the slider 5. Specifically, each elastic member 7 is arranged on the same side of its corresponding slider 5 relative to the axis of the ring body 3. For example, the elastic members 7 are all arranged on the side of the slider 5 close to the axis of the ring body 3, so as to ensure that the force-bearing states of the sliders 5 are the same; the elastic member 7 is preferably a spring, and the specifications and lengths of the springs are the same. With such an arrangement, when the sliders 5 are not stressed, the distances of the sliders 5 in the chute 4 relative to the axis of the ring body 3 are the same. In the state where the spring is freely extended, the position of the slider 5 in the chute 4 is the initial position, which corresponds to the second state of the ring body 3; when the slider 5 moves to compress or stretch the spring, the spring stores elastic potential energy so that the slider 5 has a tendency to return to the initial position. The arrangement of the elastic member 7 enables the ring body 3 to automatically remain in the second state to maintain the horizontal movement of the limiting elastic ball 2. In addition, with the arrangement of a plurality of sliders 5 and connecting rods 6 arranged circumferentially between the base 1 and the ring body 3, when the ring body 3 is to be lifted or lowered under force, it must be evenly stressed in the up and down directions as a whole; when the ring body 3 is unevenly stressed in the up and down directions as a whole, the arrangement of the sliders 5 and the connecting rods 6 restricts each other, so that the ring body 3 can be locked to a certain extent. That is, in actual use, when the user sits on the elastic ball 2, it is very difficult to apply a uniformly downward force to the ring body 3 as a whole, and it is not easy to force the ring body 3 to descend and automatically weaken its limiting effect on the elastic ball 2.

[0037] In another embodiment of the present invention, the drive assembly includes a circular plate 8 rotatably arranged in the base 1. The circular plate 8 is provided with a plurality of sliding grooves 9 corresponding one-to-one to the sliders 5. The sliders 5 are provided with sliding pins 10 movably connected to the sliding grooves 9. Specifically, the circular plate 8 is arranged on the lower side of the sliding groove 4. The sliding groove 9 is strip-shaped, with one end being arranged near the edge of the circular plate 8 and the other end being arranged near the center of the circular plate 8. The angle between the two ends of the sliding groove 9 and the line connecting the center of the circular plate 8 is set at 30-60 degrees. The preferred number of sliding grooves 9 is consistent with the preferred number of the sliders 5, and they are symmetrically arranged on the circular plate 8 around the central circumference of the circular plate 8. The sliding pins 10 are fixedly arranged at the bottom of the slider 5 and move with the slider 5. Therefore, when the sliding groove 9 rotates with the circular plate 8, the sliding pins 10 are squeezed through the inner wall thereof to achieve the movement of the slider 5 in the sliding groove 4, and each slider 5 can move synchronously. Furthermore, the sliding groove 9 is arc-shaped, with its convex edge facing the outside of the circular plate 8, which can further facilitate the sliding groove 9 to squeeze the sliding pin 10.

[0038] In another embodiment of the present invention, a column 11 is provided on the base 1, and an armrest 12 is provided on the column 11. Specifically, the column 11 is provided on the opposite side of the backrest; the armrest 12 is provided at the upper end of the column 11, and is used to provide a fulcrum for the user to support when the device is in use, thereby helping the user to keep the upper body stable.

[0039] In another embodiment of the present invention, the driving assembly includes a driving shaft 13 rotatably arranged in the column 11, and the driving shaft 13 is connected to the circular plate 8 through a sprocket transmission assembly. Specifically, the sprocket transmission assembly includes a first sprocket coaxially connected to the driving shaft 13, and a second sprocket coaxially connected to the lower end of the circular plate 8 through a connecting shaft. The first sprocket and the second sprocket are connected by a chain transmission. In actual use of this technical solution, the rotation of the driving shaft 13 drives the circular plate 8 to rotate through the sprocket transmission assembly, and the circular plate 8 drives the sliding groove 9 to rotate. The sliding groove 9 squeezes and pushes the sliding pin 10, and the sliding pin 10 drives the slider 5 to move in the sliding groove 4, and then drives the ring body 3 to rise and fall through the connecting rod 6. The lifting direction of the ring body 3 corresponds to the positive and negative rotation direction of the driving shaft 13. For specific reference, Figures 2-3 It can be seen that when the drive shaft 13 rotates clockwise, it drives the circular plate 8 to rotate clockwise, and the sliding groove 9 rotates clockwise with the circular plate 8, so that the sliding pin 10 is squeezed in the direction close to the center of the circular plate 8. At this time, the sliding pin 10 drives the slider 5 to move in the direction close to the center of the ring body 3, so that the ring body 3 drops; when the drive shaft 13 rotates counterclockwise, it drives the circular plate 8 to rotate counterclockwise, and the sliding groove 9 rotates counterclockwise with the circular plate 8, so that the sliding pin 10 is squeezed in the direction away from the center of the circular plate 8. At this time, the sliding pin 10 drives the slider 5 to move in the direction away from the center of the ring body 3, so that the ring body 3 rises.

[0040] In another embodiment proposed by the present invention, the driving component includes a hydraulic cylinder 14 installed inside a cylinder 11. The output end of the hydraulic cylinder 14 is connected to a bracket 15. A sleeve 16 is provided on the bracket 15. The sleeve 16 is in threaded movable connection with the driving shaft 13. Specifically, an activity cavity is provided inside the cylinder 11, and the hydraulic cylinder 14 is installed upside down on the inner top surface of the activity cavity; the rotation of the bracket 15 inside the activity cavity is restricted, and the output end of the hydraulic cylinder 14 only drives the bracket 15 to perform a lifting motion. A spiral convex 22 is provided on the outer side wall of the upper end of the driving shaft 13, and a spiral groove 23 matching the spiral convex 22 is provided on the inner wall of the sleeve 16. Both ends of the spiral groove 23 communicate with both ends of the sleeve 16. One end of the spiral groove 23 communicating with the upper end of the sleeve 16 is provided with a chamfer to facilitate the entry of the spiral convex 22. When the spiral convex 22 is connected to the spiral groove 23, the lifting of the sleeve 16 can rotate the driving shaft 13, and then the ring body 3 can be driven to lift. This kind of driving corresponds to the first lifting stroke of the ring body 3. In the actual use of this technical solution, the ring body 3 is first in the first state. When the hydraulic cylinder 14 is started to contract its output end, it drives the bracket 15 to rise. The bracket 15 drives the sleeve 16 to rise along the driving shaft 13, then the spiral convex 22 starts to enter the spiral groove 23. The sleeve 16 continues to rise, causing the spiral convex 22 and the spiral groove 23 to have a spiral feed effect, forcing the driving shaft 13 to rotate. And referring to Figures 2-3 , at this time, the driving shaft 13 rotates in the clockwise direction. Thus, the ring body 3 can be driven to descend; when the output end of the hydraulic cylinder 14 is completely contracted, the ring body 3 descends to the second state; then, when the hydraulic cylinder 14 is started to extend its output end, it drives the bracket 15 to descend. The bracket 15 drives the sleeve 16 to descend. At this time, the spiral convex 22 and the spiral groove 23 remain in movable connection, so under the reverse spiral feed effect, the driving shaft 13 starts to rotate counterclockwise. Thus, the ring body 3 can rise again; further, after the ring body 3 rises and returns to the first state, the sleeve 16 drives the spiral groove 23 to separate from the spiral convex 22, and continues to descend a short distance along the driving shaft 13. The further descent of this sleeve 16 does not affect the lifting of the ring body 3, but keeps the spiral groove 23 separated from the spiral convex 22. At this time, the rotation of the driving shaft 13 is not interfered by the sleeve 16, the spiral convex 22 and the spiral groove 23.

[0041] In yet another embodiment proposed by the present invention, the driving assembly includes a motor 17 mounted on a base 1. The output end of the motor 17 is connected with a first bevel gear 18 through an intermittent transmission assembly. A second bevel gear 19 matching the first bevel gear 18 is synchronously and rotatably connected to a driving shaft 13. Specifically, in actual use of this technical solution, the ring body 3 is first in the first state, the first bevel gear 18 meshes with the second bevel gear 19. On the premise that no transmission occurs between the sleeve 16 and the driving shaft 13, the motor 17 is started. The output end of the motor 17 drives the first bevel gear 18 to rotate through the intermittent transmission assembly, and then the first bevel gear 18 drives the driving shaft 13 to rotate through meshing transmission with the second bevel gear 19. And referring to Figures 2-3 , the rotation direction of the output end of the motor 17 is set to drive the driving shaft 13 to rotate counterclockwise. Thus, the ring body 3 can be driven to further rise to enter the third state, that is, the rotation of the driving shaft 13 driven by the motor 17 causes the ring body 3 to be in the second lifting stroke. At this time, the elastic member 7 is stretched and stores elastic potential energy. When the intermittent transmission assembly is in the neutral transmission, the elastic potential energy of the elastic member 7 can be released, prompting the ring body 3 to descend to return to the second state; after the above process is repeated, the reciprocating lifting motion of the ring body 3 in the third state can be realized.

[0042] As a preferred technical solution of this embodiment, the second bevel gear 19 is arranged on the drive shaft 13 in a liftable manner, and the upper end is rotatably connected to the sleeve 16. Specifically, the second bevel gear 19 is sleeved on the drive shaft 13, and a key block 24 is fixedly arranged on the inner wall. A key groove 25 matching the key block 24 is arranged on the outer wall of the drive shaft 13, and the key block 24 is movably arranged in the key groove 25. The arrangement of the key block 24 and the key groove 25 enables the second bevel gear 19 to axially move on the drive shaft 13 while maintaining synchronous rotation with the drive shaft 13. Both the hydraulic cylinder 14 and the motor 17 are power sources for the drive shaft 13. To avoid interference between the two power sources, the liftable second bevel gear 19 is provided, and under the condition of being rotatably connected to the sleeve 16, the second bevel gear 19 can be lifted and lowered with the sleeve 16. In actual use of this technical solution, when the ring body 3 is in the first lifting stroke, that is, the hydraulic cylinder 14 starts to extend and retract the output end, thereby driving the sleeve 16 to lift and lower. Through the connection between the spiral protrusion 22 and the spiral groove 23, the drive shaft 13 is driven to rotate to realize the mutual switching between the first state and the second state of the ring body 3; when the ring body 3 is in the second lifting stroke, that is, the motor 17 starts to drive the first bevel gear 18 to intermittently rotate through the intermittent transmission assembly, and then drives the drive shaft 13 to intermittently rotate through the second bevel gear 19, and then cooperates with the reset action of the elastic member 7 to realize the reciprocating lifting movement of the ring body 3 in the third state; when the ring body 3 switches from the first lifting stroke to the second lifting stroke, the ring body 3 is in the process of switching from the second state to the first state. During this process, the output end of the hydraulic cylinder 14 extends, driving the sleeve 16 to descend. The sleeve 16 drives the spiral groove 23 to leave the spiral protrusion 22 and continue to descend a short distance along the drive shaft 13. At the same time, the sleeve 16 drives the second bevel gear 19 to engage with the first bevel gear 18. At this time, the rotation of the drive shaft 13 is not affected by the sleeve 16, and the motor 17 can drive the drive shaft 13 to rotate through the intermittent transmission assembly, the first bevel gear 18, and the second bevel gear 19 in sequence; when the ring body 3 switches from the second lifting stroke to the first lifting stroke, the motor 17 stops, the intermittent transmission assembly is in neutral gear transmission, and the ring body 3 automatically remains in the first state. Then the hydraulic cylinder 14 starts, and its output end contracts, thereby driving the sleeve 16 to rise. The sleeve 16 drives the spiral groove 23 to approach the spiral protrusion 22, and at the same time drives the second bevel gear 19 to rise away from the first bevel gear 18. When the spiral groove 23 and the spiral protrusion 22 start to dock, the first bevel gear 18 and the second bevel gear 19 must first separate. After the spiral groove 23 and the spiral protrusion 22 are docked, the drive shaft 13 is not affected by the drive of the motor 17, and the hydraulic cylinder 14 can drive the drive shaft 13 to rotate by driving the sleeve 16 to lift and lower.

[0043] As a preferred technical solution of this embodiment, the intermittent transmission assembly includes a first shifting gear 20 coaxially connected to the output end of the motor 17. The first bevel gear 18 is connected by a transmission shaft 26 to a second shifting gear 21 that matches the first shifting gear 20. Specifically, the first shifting gear 20 rotates driven by the output end of the motor 17. When it meshes with the second shifting gear 21, it drives the transmission shaft 26 to rotate. When it does not mesh with the second shifting gear 21, the first shifting gear 20 idles. Thus, the intermittent rotation of the transmission shaft 26 is achieved, and the intermittent rotation of the first bevel gear 18 is also driven.

[0044] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pregnant woman delivery assistance and induction device, including a base (1), wherein an elastic ball (2) is arranged on the base (1), and it is characterized in that, Further included are: A ring body (3) which is arranged on the base (1) in a liftable manner to support the elastic ball (2), and the ring body (3) has a first state of limiting the horizontal movement of the elastic ball (2) during the lifting stroke, a second state of keeping in contact with the base (1) so that the horizontal movement of the elastic ball (2) is not restricted, and a third state of driving the elastic ball (2) to reciprocate up and down; A driving assembly which is used to drive the ring body (3) to lift; The driving assembly includes a plurality of sliding grooves (4) arranged on the inner circumference of the base (1), a slider (5) is movably arranged in the sliding groove (4), and the upper end of the slider (5) is movably connected to the ring body (3) through a connecting rod (6); an elastic member (7) is arranged in the sliding groove (4), and two ends of the elastic member (7) are respectively connected to the sliding groove (4) and the slider (5); each slider (5) moves synchronously in the corresponding sliding groove (4), and the moving directions are simultaneously close to or away from the axis direction of the ring body (3), so that the ring body (3) lifts horizontally; The driving assembly includes a circular plate (8) rotatably arranged in the base (1), a plurality of sliding grooves (9) corresponding to the sliders (5) one by one are arranged on the circular plate (8), and a sliding pin (10) movably connected to the sliding groove (9) is arranged on the slider (5); a cylinder body (11) is arranged on the base (1), the driving assembly includes a driving shaft (13) rotatably arranged in the cylinder body (11), and the driving shaft (13) is in transmission connection with the circular plate (8) through a chain wheel transmission assembly; the driving assembly includes a hydraulic cylinder (14) installed in the cylinder body (11), the output end of the hydraulic cylinder (14) is connected with a bracket (15), a sleeve (16) is arranged on the bracket (15), and the sleeve (16) is in threaded movable connection with the driving shaft (13); a spiral protrusion (22) is arranged on the outer side wall of the upper end of the driving shaft (13), and a spiral groove (23) matching with the spiral protrusion (22) is arranged on the inner wall of the sleeve (16); after the ring body (3) rises and returns to the first state, the sleeve (16) drives the spiral groove (23) to separate from the spiral protrusion (22), and continues to descend a short distance along the driving shaft (13), and the further descent of the sleeve (16) does not affect the lifting of the ring body (3), so that the spiral groove (23) and the spiral protrusion (22) remain separated, and at this time, the rotation of the driving shaft (13) is not interfered by the sleeve (16), the spiral protrusion (22) and the spiral groove (23); the driving assembly includes a motor (17) installed on the base (1), the output end of the motor (17) is connected with a first bevel gear (18) through an intermittent transmission assembly, and a second bevel gear (19) matching with the first bevel gear (18) is synchronously rotatably connected to the driving shaft (13), and the motor (17) can drive the ring body (3) to further rise to enter the third state.

2. The pregnant woman delivery assisting and inducing device according to claim 1, wherein, A handrail (12) is arranged on the cylinder body (11).

3. The pregnant woman delivery and labor induction assisting device according to claim 1, wherein The second bevel gear (19) is arranged on the driving shaft (13) in a liftable manner, and the upper end is rotatably connected to the sleeve (16).

4. The pregnant woman delivery assisting and labor inducing device according to claim 1, wherein, The intermittent drive assembly includes a first dial gear (20) coaxially connected to the output end of a motor (17). The first bevel gear (18) is connected by a transmission shaft (26) to a second dial gear (21) that matches the first dial gear (20).

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