Leg support adjusting frame for pregnant women in obstetrics and gynecology department
By combining the lifting and adjusting mechanisms, the leg support frame for pregnant women can be quickly and steplessly adjusted, solving the problem of time-consuming operation in existing technologies, adapting to different body types of pregnant women, and improving medical efficiency and safety in emergency situations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING MATERNAL & CHILD HEALTH HOSPITAL (CHONGQING OBSTETRICS & GYNECOLOGY HOSPITAL CHONGQING INST OF GENETICS & REPRODUCTION)
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-26
AI Technical Summary
Existing leg support adjustment frames for pregnant women require repeated manual rotation of the handle in emergency situations, which is time-consuming and affects medical efficiency. They also cannot achieve stepless adjustment and cannot match the body shape needs of all pregnant women.
The system employs a lifting and adjusting mechanism, including components such as a rotating shaft, gears, ratchet, and threaded rod. The turntable drives the belt and gear transmission to achieve rapid lifting and lowering of the leg support blocks and adjustment of their spacing. The ratchet prevents reverse rotation, and the threaded rod drives the U-shaped block and gear to move and adjust the spacing of the support blocks.
It enables rapid response to the positioning needs of pregnant women in emergency situations, ensures the stability of the height and spacing of the support blocks, adapts to different pregnant women's body types, and improves the efficiency and safety of medical operations.
Smart Images

Figure CN224403945U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to an adjustable leg support frame for pregnant women in obstetrics and gynecology. Background Technology
[0002] The leg support adjustment frame for pregnant women is an assistive device designed specifically for pregnant women. With its adjustable height and angle, it helps pregnant women elevate their legs, maintain a comfortable posture, promote blood circulation in the lower limbs, relieve edema and muscle fatigue caused by obstructed venous return, help improve body posture during pregnancy, reduce the burden on the lower back, and provide postural support during prenatal checkups or childbirth, thereby improving the comfort and safety of medical procedures.
[0003] Existing leg support adjustment frames for pregnant women consist of a support frame, adjustment components, and cushioning material. The surface is covered with skin-friendly and breathable fabric, combining support and comfort. Multiple height slots are pre-set on the support legs or brackets, and the height is fixed by inserting or removing pins or pressing buckles. However, the intervals between the levels are fixed, and stepless adjustment cannot be achieved, making it unsuitable for the body shape needs of all pregnant women. Current technology uses a rotating handle to drive a lead screw to perform lifting and lowering movements, thereby achieving precise stepless micro-adjustment. However, manually rotating the handle requires repeated rotation, which can affect medical efficiency in emergency situations (such as quickly adjusting the delivery position) due to the time-consuming operation. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides an adjustable leg support frame for pregnant women in obstetrics and gynecology, which aims to improve the problem that the manual rotating handle in the prior art needs to be rotated repeatedly, which will affect the efficiency of medical care due to the time-consuming operation in emergency situations.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a leg support adjustment frame for obstetric and gynecological pregnant women, including a medical bed. A lifting mechanism is provided on the left side of the outer wall of the medical bed for raising and lowering the legs. An adjustment mechanism is also provided on the left side of the outer wall of the medical bed for adjusting the distance between support blocks. The lifting mechanism includes a fixed block and a belt. The fixed block is fixedly connected to the left side of the outer wall of the medical bed. A turntable is provided at the front end of the left side of the fixed block. A rotating shaft is fixedly connected to the right side of the outer wall of the turntable. A drive wheel is fixedly connected to the outer wall of the rotating shaft. A rotating shaft is rotatably connected to the rear inner side of the fixed block. A driven wheel is fixedly connected to the outer wall of the rotating shaft. The drive wheel is connected to the driven wheel via a belt. A gear is fixedly connected to the right end of the outer walls of both the rotating shaft and the rotating shaft. A rack is meshed with the rear outer wall of the gear. Square grooves are provided on the front and rear sides of the top wall of the fixed block. The rack is located inside the square grooves. A fixing component is provided on the left side of the outer wall of the medical bed.
[0006] As a further description of the above technical solution:
[0007] The fixing component includes a ratchet, which is fixedly connected to the outer wall of the rotating shaft one. A pawl is provided on the front side of the outer wall of the ratchet, and the pawl is rotatably connected to the upper left side of the outer wall of the fixing block one. A spring is installed on the bottom wall of the pawl, and a fixing plate is installed on the bottom end of the spring. The adjusting mechanism includes a fixing block two, which is fixedly connected to the top wall of the fixing block one. A rack two is fixedly connected to the inner bottom wall of the fixing block one. A gear two is meshed with the middle of the top wall of the rack two. A U-shaped block is rotatably connected to the outer wall of the gear two. A rack three is meshed with the top wall of the gear two. A rubber support block is fixedly connected to the top wall of the rack three. A drive component is provided on the left side of the outer wall of the medical bed.
[0008] As a further description of the above technical solution:
[0009] The drive assembly includes two turntables, which are disposed on opposite sides of the outer walls of two fixed blocks. Threaded rods are fixedly connected to adjacent sides of the outer walls of the two turntables, and the threaded rods are rotatably connected to the outer walls of the U-shaped blocks.
[0010] As a further description of the above technical solution:
[0011] The first rotating shaft passes through the upper left front end of the outer wall of the first fixed block, and the first rack is slidably connected to the square groove. The threaded rod passes through the outer wall of the second fixed block and is threadedly connected to the second fixed block. The medical bed has two sliding grooves on its outer left front and rear ends, located on the front and rear sides of the top wall of the first fixed block. A slider is slidably connected to the inner wall of each sliding groove, and the slider is fixedly connected to the rear side of the outer wall of the first rack. The medical bed also has a second sliding groove on its outer left side, located on the top wall of the second fixed block, and the third rack is slidably connected to the second sliding groove.
[0012] This utility model has the following beneficial effects:
[0013] 1. In this utility model, when adjusting the height, rotating turntable one drives rotating shaft one and driving wheel, which in turn drives driven wheel to rotate via belt, thereby driving rotating shaft two and gear one to rotate. Gear one causes rack one to move in square groove, realizing the raising and lowering of the leg support block. It can quickly respond to the positional needs of pregnant women during childbirth, examination and other scenarios. After adjusting to the appropriate height, the pawl is engaged in the ratchet groove of rotating shaft one under the action of spring to prevent reverse rotation and ensure the stability of the support block height.
[0014] 2. In this utility model, rotating turntable two drives the threaded rod to rotate and move the U-shaped block and gear two. Gear two rotates on rack two, further pushing rack three and rubber support block to move, thereby adjusting the spacing of the support blocks to adapt to different pregnant women's body shapes and ensure the stability and safety of the support. Attached Figure Description
[0015] Figure 1 This is a front view of the gynecological leg support adjustment frame for pregnant women proposed in this utility model.
[0016] Figure 2 This is a perspective view of the gynecological leg support adjustment frame for pregnant women proposed in this utility model.
[0017] Figure 3 This is a left view of the gynecological leg support adjustment frame for pregnant women proposed in this utility model.
[0018] Figure 4 This is an exploded view of a partial structure of the gynecological leg support adjustment frame for pregnant women proposed in this utility model.
[0019] Figure 5 This is a partial structural exploded view of the gynecological leg support adjustment frame for pregnant women proposed in this utility model.
[0020] Legend:
[0021] 1. Medical bed; 2. Lifting mechanism; 201. Fixed block one; 202. Turntable one; 203. Rotating shaft one; 204. Fixed assembly; 2041. Ratchet; 2042. Pawl; 2043. Spring; 2044. Fixed plate; 205. Drive wheel; 206. Rotating shaft two; 207. Driven wheel; 208. Belt; 209. Gear one; 210. Rack one; 211. Square groove; 3. Adjustment mechanism; 301. Fixed block two; 302. Rack two; 303. U-shaped block; 304. Gear two; 305. Rack three; 306. Rubber support block; 307. Drive assembly; 3071. Turntable two; 3072. Threaded rod; 4. Slide groove one; 5. Slider; 6. Slide groove two. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a leg support adjustment frame for obstetric and gynecological patients, comprising a medical bed 1, a lifting mechanism 2 for raising and lowering the bed 1 on its left outer wall, and an adjustment mechanism 3 for adjusting the distance between support blocks on the left outer wall of the medical bed 1. The lifting mechanism 2 includes a fixing block 201 and a belt 208. The fixing block 201 is fixedly connected to the left outer wall of the medical bed 1, and a turntable 202 is provided at the front end of the left outer wall of the fixing block 201. A belt 208 is fixedly connected to the right outer wall of the turntable 202. Rotating shaft 203 is driven to rotate by rotating disk 202. A driving wheel 205 is fixedly connected to the outer wall of rotating shaft 203. Rotating shaft 206 is rotatably connected to the rear interior of fixed block 201. A driven wheel 207 is fixedly connected to the outer wall of rotating shaft 206. The driving wheel 205 is connected to the driven wheel 207 via belt 208, driving the driven wheel 207 to rotate. Gears are fixedly connected to the right ends of the outer walls of both rotating shaft 203 and rotating shaft 206. Gear 209 has a rack 210 meshing with its rear outer wall. The top wall of the fixing block 201 has square grooves 211 on both the front and rear sides. The rack 210 is positioned inside the square grooves 211. Gear 209 drives the rack 210 to move within the square grooves 211, thus raising and lowering the leg support block. A fixing component 204 is located on the left side of the outer wall of the medical bed 1. The fixing component 204 includes a ratchet 2041, which is fixedly connected to the outer wall of the rotating shaft 203. A pawl 204 is located on the front side of the outer wall of the ratchet 2041. 2. Pawl 2042 is rotatably connected to the upper left side of the outer wall of fixed block 201. A spring 2043 is installed on the bottom wall of pawl 2042. A fixing plate 2044 is installed at the bottom end of spring 2043. Pawl 2042 is engaged in the tooth groove of ratchet 2041 on rotating shaft 203 under the action of spring 2043 to prevent rotating shaft 203 from rotating in the opposite direction. It is fixedly connected to the upper left side of the outer wall of fixed block 201. Rotating shaft 203 passes through the front end of the upper left side of the outer wall of fixed block 201. Rack 210 is slidably connected to square groove 211.
[0024] Specifically, the lifting mechanism 2 is used for lifting, and the adjusting mechanism 3 is used for adjusting the distance of the support block. When the height needs to be adjusted, the turntable 202 is rotated, which drives the rotating shaft 203 to rotate. The movement of the rotating shaft 203 will cause the drive wheel 205 to rotate, and the drive wheel 205 will cause the driven wheel 207 to rotate through the transmission action of the belt 208. The rotation of the driven wheel 207 will drive the second rotating shaft 206 to rotate, which in turn causes the gear 209 on the first rotating shaft 203 and the second rotating shaft 206 to rotate synchronously. The rotation of the gear 209 drives the rack 210 to move in the square groove 211, thereby realizing the lifting function of the leg support block. When the required height is reached and the rotating turntable 202 stops rotating, the pawl 2042 will be engaged in the tooth groove of the ratchet 2041 on the first rotating shaft 203 under the elastic force of the spring 2043, preventing the first rotating shaft 203 from rotating in the opposite direction. The rack 210 is fixed in the current position to ensure that the height of the support block remains stable.
[0025] Reference Figure 3 and Figure 5 The adjusting mechanism 3 includes a second fixed block 301, which is fixedly connected to the top wall of a first fixed block 201. A second rack 302 is fixedly connected to the inner bottom wall of the first fixed block 201. A second gear 304 rotates on the rack 302. The second gear 304 is meshed with the middle of the top wall of the rack 302. A U-shaped block 303 is rotatably connected to the outer wall of the second gear 304. A threaded rod 3072 drives the U-shaped block 303 to move, which in turn drives the second gear 304 to move. A third rack 305 is meshed with the top wall of the second gear 304. The second gear 304 drives the top rack 305 to move further, thereby adjusting the spacing of the rubber support blocks 306. A rubber support block 306 is fixedly connected to the top wall of strip 305. A drive assembly 307 is provided on the left side of the outer wall of medical bed 1. The drive assembly 307 includes two turntables 3071. The two turntables 3071 are located on the outer walls of the two fixed blocks 301 on opposite sides. A threaded rod 3072 is fixedly connected to the adjacent side of the outer walls of the two turntables 3071. The turntables 3071 drive the threaded rod 3072 to rotate. The threaded rod 3072 is rotatably connected to the outer wall of U-shaped block 303. The threaded rod 3072 passes through the outer wall of fixed block 301. The threaded rod 3072 is threadedly connected to fixed block 301. The threaded rod 3072 rotates and moves outside fixed block 301.
[0026] Specifically, the rotating turntable 3071 drives the threaded rod 3072 to rotate. The threaded rod 3072 rotates and moves outside the fixed block 301. The threaded rod 3072 causes the U-shaped block 303 to move. The U-shaped block 303 pushes the gear 304 to move. The gear 304 rotates on the rack 302 and simultaneously causes the top rack 305 to move further. The rack 305 pushes the top of the rubber support block 306 to move, thereby adjusting the spacing of the rubber support block 306.
[0027] Reference Figure 4 and Figure 5 The medical bed 1 has two sliding grooves 4 on the front and rear ends of the left side. The two sliding grooves 4 are opened on the front and rear sides of the top wall of the fixed block 201. The inner wall of the sliding groove 4 is slidably connected to the slider 5. The slider 5 is fixedly connected to the rear side of the outer wall of the rack 210. The slider 5 slides in the sliding groove 4 to limit the lateral displacement of the rack 210 and avoid tilting. It ensures that the leg support block rises and falls smoothly in the vertical direction. The medical bed 1 has a sliding groove 6 on the left side. The sliding groove 6 is opened on the top wall of the fixed block 201. The rack 305 is slidably connected to the sliding groove 6. The sliding groove 6 ensures that the rack 305 moves stably and avoids displacement or shaking due to uneven force.
[0028] Specifically, slider 5 slides within slide groove 4, limiting the lateral offset of rack 210 to prevent tilting and ensuring that the leg support block rises and falls smoothly in the vertical direction. Slide groove 6 ensures the stable movement of rack 305 and prevents offset or wobbling due to uneven force.
[0029] Working principle: When the height needs to be adjusted, turntable 202 is rotated, which drives shaft 203 to rotate. Shaft 203 drives drive wheel 205 to rotate, which in turn drives driven wheel 207 via belt 208. Driven wheel 207 drives shaft 206 to rotate, and gear 209 on shafts 203 and 206 rotate simultaneously. Gear 209 drives rack 210 to move within square groove 211, thus raising and lowering the leg support block. This allows for quick response to the pregnant woman's positional needs during childbirth, examinations, and other scenarios. When the appropriate height is reached and turntable 202 is stopped, pawl 2042, under the action of spring 2043, engages with the tooth groove of ratchet 2041 on shaft 203, preventing shaft 203 from rotating in the opposite direction and fixing rack 210 in the current position, ensuring the stability of the support block height.
[0030] Rotating turntable 3071 causes the threaded rod 3072 to rotate. The threaded rod 3072 rotates and moves outside the fixed block 301. The threaded rod 3072 drives the U-shaped block 303 to move. The U-shaped block 303 drives the gear 304 to move. The gear 304 rotates on the rack 302, which in turn drives the top rack 305 to move further. The rack 305 drives the top of the rubber support block 306 to move, thereby adjusting the spacing of the rubber support blocks 306. This can meet the needs of pregnant women of different body types while ensuring the stability and safety of the support.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An adjustable leg support frame for pregnant women in obstetrics and gynecology, including a medical bed (1), characterized in that: The medical bed (1) is provided with a lifting mechanism (2) on the left side of its outer wall. The lifting mechanism (2) is used for lifting. The medical bed (1) is provided with an adjustment mechanism (3) on the left side of its outer wall. The adjustment mechanism (3) is used to adjust the distance of the support block. The lifting mechanism (2) includes a fixed block (201) and a belt (208). The fixed block (201) is fixedly connected to the left side of the outer wall of the medical bed (1). A turntable (202) is provided at the front end of the left side of the outer wall of the fixed block (201). A rotating shaft (203) is fixedly connected to the right side of the outer wall of the turntable (202). A drive wheel (205) is fixedly connected to the outer wall of the rotating shaft (203). A rotating shaft (206) is rotatably connected to the rear side of the interior of the fixed block (201). The outer wall of the rotating shaft (206) is fixedly connected to... There is a driven wheel (207), and the driving wheel (205) is connected to the driven wheel (207) via a belt (208). The right side of the outer wall of the first rotating shaft (203) and the second rotating shaft (206) are fixedly connected to a gear (209). The rear side of the outer wall of the gear (209) is meshed with a rack (210). The front and rear sides of the top wall of the first fixing block (201) are provided with square grooves (211). The rack (210) is set inside the square groove (211). The left side of the outer wall of the medical bed (1) is provided with a fixing component (204).
2. The obstetric and gynecological leg support adjustment frame for pregnant women according to claim 1, characterized in that: The fixing component (204) includes a ratchet (2041), which is fixedly connected to the outer wall of the rotating shaft (203). A pawl (2042) is provided on the front side of the outer wall of the ratchet (2041). The pawl (2042) is rotatably connected to the upper left side of the outer wall of the fixing block (201). A spring (2043) is installed on the bottom wall of the pawl (2042). A fixing plate (2044) is installed at the bottom end of the spring (2043). The fixing plate is fixedly connected to the upper left side of the outer wall of the fixing block (201).
3. The obstetric and gynecological leg support adjustment frame for pregnant women according to claim 1, characterized in that: The adjustment mechanism (3) includes a second fixed block (301), which is fixedly connected to the top wall of the first fixed block (201). The inner bottom wall of the first fixed block (201) is fixedly connected to a second rack (302). The top wall of the second rack (302) is meshed with a second gear (304). The outer wall of the second gear (304) is rotatably connected to a U-shaped block (303). The top wall of the second gear (304) is meshed with a third rack (305). The top wall of the third rack (305) is fixedly connected to a rubber support block (306). A drive assembly (307) is provided on the left side of the outer wall of the medical bed (1).
4. The obstetric and gynecological leg support adjustment frame for pregnant women according to claim 3, characterized in that: The drive assembly (307) includes a turntable (3071), and two turntables (3071) are disposed on opposite sides of the outer walls of two fixed blocks (301). A threaded rod (3072) is fixedly connected to an adjacent side of the outer walls of the two turntables (3071), and the threaded rod (3072) is rotatably connected to the outer wall of the U-shaped block (303).
5. The obstetric and gynecological leg support adjustment frame for pregnant women according to claim 1, characterized in that: The rotating shaft (203) passes through the upper left front end of the outer wall of the fixed block (201), and the rack (210) is slidably connected to the square groove (211).
6. The obstetric and gynecological leg support adjustment frame for pregnant women according to claim 4, characterized in that: The threaded rod (3072) passes through the outer wall of the second fixed block (301), and the threaded rod (3072) is threadedly connected to the second fixed block (301).
7. The obstetric and gynecological leg support adjustment frame for pregnant women according to claim 1, characterized in that: The medical bed (1) has two sliding grooves (4) on the front and rear ends of the left side. The two sliding grooves (4) are opened on the front and rear sides of the top wall of the fixed block (201). The inner wall of the sliding groove (4) is slidably connected to a slider (5). The slider (5) is fixedly connected to the rear side of the outer wall of the rack (210).
8. The obstetric and gynecological leg support adjustment frame for pregnant women according to claim 3, characterized in that: The medical bed (1) has a sliding groove 2 (6) on its outer left side. The sliding groove 2 (6) is opened on the top wall of the fixing block 2 (301). The rack 3 (305) is slidably connected to the sliding groove 2 (6).