An adjustable weight underwater rehabilitation robot

By designing an underwater rehabilitation robot with adjustable counterweight, and utilizing a suspension airbag and motor drive system, the problem of the unadjustable counterweight of underwater rehabilitation robots has been solved, achieving flexible buoyancy control and improved safety.

CN224403958UActive Publication Date: 2026-06-26SHENZHEN JIESHUI MEDICAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN JIESHUI MEDICAL TECH CO LTD
Filing Date
2025-01-17
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing underwater rehabilitation robots cannot adjust their counterweight, making it difficult for patients to control buoyancy and easily leading to safety hazards, such as sudden problems like leg cramps.

Method used

An underwater rehabilitation robot with adjustable counterweight was designed. The counterweight lead block is suspended and adjusted through a suspension airbag and motor drive system. The counterweight can be flexibly adjusted by using a telescopic spring and traction plate structure.

Benefits of technology

It improves patients' buoyancy control, reduces safety hazards, and enhances the safety and ease of use.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224403958U_ABST
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Abstract

The utility model belongs to joint rehabilitation equipment field, concretely is a kind of underwater rehabilitation robot of adjustable counterweight, including fixed part and movable part, the fixed part is equipped with operating block, operating block is provided with inner chamber, fixed part is equipped with transparent window, inner chamber is provided with traction groove, traction groove is equipped with mounting pipe, mounting pipe is equipped with adjusting lever, adjusting lever is equipped with traction plate, traction plate is equipped with traction arc block, traction groove is assembled, traction plate is equipped with traction arc block, mounting pipe and adjusting lever are all equipped with telescopic spring, traction plate is all fixedly equipped with connecting block, the one end of connecting block is all fixedly equipped with clamping block, clamping block is all provided with clamping groove, the above-mentioned underwater rehabilitation robot of adjustable counterweight solves the problem that the counterweight of existing underwater rehabilitation robot cannot be adjusted by the cooperation of telescopic spring and clamping groove, leading to the difficulty of buoyancy control of patient, in the sudden problem of cramp of patient's foot, easy to cause the problem of security risk.
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Description

Technical Field

[0001] This utility model relates to the field of joint rehabilitation equipment, specifically an underwater rehabilitation robot with adjustable counterweight. Background Technology

[0002] In an underwater environment, the buoyancy of water reduces the burden on the patient's body, making joint movement easier and helping to reduce pain and discomfort during training. Through precise motion control and data feedback, the underwater rehabilitation robot can more effectively activate the patient's muscle groups, promote neural remodeling and functional recovery, thereby improving rehabilitation outcomes. The resistance training provided by the underwater environment can better simulate the stress on joints during daily activities, making rehabilitation training closer to real-life scenarios and thus improving training effectiveness. Equipped with fun and highly interactive training programs, patients can enhance their sense of participation and increase their enthusiasm and frequency of training by interacting with the robot. Therefore, it is very necessary for patients to wear an underwater rehabilitation robot for joint rehabilitation.

[0003] However, the following problems still exist in the current process of patients using underwater rehabilitation robots:

[0004] Existing underwater rehabilitation robots use fixed lead weights during use. Excessive weight allows the user to touch the bottom and surface of the water while wearing the robot, facilitating walking rehabilitation. However, since the weight cannot be adjusted, patients experience difficulty controlling buoyancy. This can lead to safety hazards when patients experience sudden problems such as leg cramps. Therefore, it is necessary to develop an underwater rehabilitation robot with adjustable weight for use in the field of joint rehabilitation equipment. Utility Model Content

[0005] To address the shortcomings of existing technologies, such as the inability to adjust the counterweight of current underwater rehabilitation robots, which leads to difficulties in buoyancy control for patients and poses safety hazards in the event of sudden problems like leg cramps, this invention proposes an underwater rehabilitation robot with adjustable counterweight.

[0006] The technical solution adopted by this utility model to solve its technical problem is: an underwater rehabilitation robot with adjustable counterweight, including a fixed part and a movable part. An operating block is fixedly mounted on the fixed part. The operating block has an inner cavity. A transparent window is fixedly mounted on the surface of the fixed part. The transparent window is close to the inner cavity. Multiple traction grooves are provided on the inner wall of the inner cavity. An installation tube is fixedly mounted on each traction groove. An adjusting rod is movably mounted on one end of each installation tube. One end of the adjusting rod moves inside the installation tube. A traction plate is fixedly mounted on the other end of each adjusting rod. The traction plate is movably assembled with the traction groove. A traction arc block is fixedly mounted on the bottom of each traction plate. The traction arc block is located in the inner cavity. A telescopic spring is mounted on both the installation tube and the adjusting rod. The two ends of the telescopic spring are fixedly assembled with the traction groove and the traction plate, respectively. A connecting block is fixedly mounted on each traction plate. The connecting block movably passes through the operating block. A locking block is fixedly mounted on one end of each connecting block. A locking groove is provided on each locking block. The locking groove is close to the surface of the operating block.

[0007] Preferably, the bottom of the operating block is fixedly equipped with multiple connecting ropes, which are respectively engaged with the slots on the block. One end of each connecting rope is fixedly equipped with a suspension airbag, and each suspension airbag is fixedly equipped with an air nozzle.

[0008] Preferably, a fixing rope is fixedly mounted on the connecting rope, and a counterweight lead block is fixedly mounted on each fixing rope, with the counterweight lead block located between the two locking blocks.

[0009] Preferably, guide rods are symmetrically fixedly mounted on the inner wall of the cavity, a micro motor is fixedly mounted on the end face of the operating block, and a transmission screw is fixedly mounted on the output end of the micro motor, with the transmission screw movably penetrating into the cavity.

[0010] Preferably, the transmission screw is threaded with a movable block, which is movably assembled with two guide rods, and a bearing block is fixedly assembled on the side of the movable block.

[0011] Preferably, the bearing block is fixedly equipped with an operating arc block, and the operating arc block can only be engaged with one of the traction arc blocks in turn.

[0012] Preferably, a drive motor is fixedly mounted on the fixing part, and the output end of the drive motor movably passes through the fixing part.

[0013] Preferably, the output end of the drive motor is fixedly equipped with a movable part, which is located below the fixed part.

[0014] The advantages of this utility model are:

[0015] This invention involves the patient wearing the fixed part on their thigh and the movable part on their calf. The suspension airbag is inflated via an air nozzle, suspending in water. Activating the drive motor enables the patient to walk. Activating the micro-motor causes the transmission screw to rotate on the movable block, moving the block along two guide rods. The movable block drives the operating arc block on the bearing block, allowing each operating arc block to engage with only one traction arc block at a time. The traction arc block is then pushed, causing one end of the adjusting rod to move inside the mounting tube. This stretches the telescopic spring, causing the traction plate to move the locking block on the connecting block, thus decoupling the locking groove and operating block from the connecting rope. Under the buoyancy of the suspension airbag, the lead weight released from the connecting rope suspends, allowing for adjustment of the patient's weight. This design facilitates operation and improves safety. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the underwater rehabilitation robot with adjustable counterweight according to the present invention.

[0018] Figure 2 This is a schematic diagram of the underwater rehabilitation robot with adjustable counterweight according to the present invention.

[0019] Figure 3 This is a schematic diagram of the adjustable counterweight mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the snap-fit ​​mechanism of this utility model.

[0021] In the picture:

[0022] 10. Fixed part; 11. Moving part; 12. Drive motor; 13. Operating block;

[0023] 20. Connecting rope; 21. Suspension airbag; 22. Air nozzle; 23. Inner cavity;

[0024] 30. Transparent viewing window; 31. Traction groove; 32. Traction plate; 33. Guide rod;

[0025] 40. Miniature motor; 41. Lead screw; 42. Moving block; 43. Bearing block;

[0026] 50. Operating arc block; 51. Fixing rope; 52. Counterweight lead block; 53. Clamping block;

[0027] 60. Traction block; 61. Mounting tube; 62. Adjusting rod; 63. Telescopic spring;

[0028] 70. Connecting block; 71. Card slot. Detailed Implementation

[0029] 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 scope of protection of the present utility model.

[0030] The following is in conjunction with the appendix Figure 1 —4 provides further detailed description of this application.

[0031] This application discloses an underwater rehabilitation robot with adjustable counterweight. (See also...) Figure 1 and Figure 3 as well as Figure 4An adjustable-weight underwater rehabilitation robot includes a fixed part 10 and a movable part 11. An operating block 13 is fixedly mounted on the fixed part 10, and an inner cavity 23 is provided inside the operating block 13. A transparent window 30 is fixedly mounted on the surface of the fixed part 10, close to the inner cavity 23. Multiple traction grooves 31 are provided on the inner wall of the inner cavity 23, and each traction groove 31 is fixedly mounted with a mounting tube 61. An adjusting rod 62 is movably mounted at one end of each mounting tube 61, and one end of the adjusting rod 62 moves inside the mounting tube 61 to adjust the... The other end of each rod 62 is fixedly fitted with a traction plate 32 that moves in the traction groove 31. The bottom of each traction plate 32 is fixedly fitted with a traction arc block 60 located in the inner cavity 23. A telescopic spring 63 is fixedly fitted between the traction groove 31 and the traction plate 32. The mounting tube 61 and the adjusting rod 62 are both fitted inside the telescopic spring 63. A connecting block 70 is fixedly fitted on each traction plate 32. The connecting block 70 movably passes through the operating block 13, and a locking block 53 is fixedly fitted on one end of each connecting block 70. Each locking block 53 has a locking groove 71. 71 is close to the surface of the operating block 13. Multiple connecting ropes 20 are fixedly mounted on the bottom of the operating block 13. The connecting ropes 20 are respectively engaged with the slots 71 on the locking blocks 53. A suspension airbag 21 is fixedly mounted at one end of each connecting rope 20. An air nozzle 22 is fixedly mounted on each suspension airbag 21. A fixing rope 51 is fixedly mounted on each connecting rope 20. A counterweight lead block 52 is fixedly mounted on each fixing rope 51. The counterweight lead block 52 is located between two locking blocks 53. The suspension airbag 21 is inflated through the air nozzle 22. The patient wears the fixation device 1. The suspension airbag 21, which is suspended in water, pushes the traction block 60, causing one end of the adjusting rod 62 to move inside the mounting tube 61. The telescopic spring 63 is stretched, and the traction plate 32 drives the locking block 53 on the connecting block 70 to move, so that the locking groove 71 and the operating block 13 are no longer locked to the connecting rope 20. Under the buoyancy of the suspension airbag 21, the counterweight lead block 52 released on the connecting rope 20 is suspended, which can adjust the counterweight of the patient, making the operation convenient and improving the safety of use.

[0032] Reference Figure 3The inner wall of the inner cavity 23 is symmetrically fitted with guide rods 33. The end face of the operating block 13 is fixedly fitted with a micro motor 40. The output end of the micro motor 40 is fixedly fitted with a transmission screw 41. The transmission screw 41 is movably inserted into the inner cavity 23. The transmission screw 41 is threaded with a movable block 42 that moves on the two guide rods 33. The side of the movable block 42 is fixedly fitted with a bearing block 43. The bearing block 43 is fixedly fitted with an operating arc block 50. The operating arc block 50 can only contact one of the traction arc blocks 60 in turn. When the micro motor 40 is started, the transmission screw 41 rotates on the movable block 42, causing the movable block 42 to move on the two guide rods 33. The movable block 42 drives the operating arc block 50 on the bearing block 43 to move, so that the operating arc block 50 can only contact one of the traction arc blocks 60 in turn, and the traction arc block 60 is subjected to force.

[0033] Reference Figure 1 and Figure 2 A drive motor 12 is fixedly mounted on the fixed part 10. The output end of the drive motor 12 moves through the fixed part 10, and a movable part 11 is fixedly mounted on the output end of the drive motor 12. The movable part 11 is below the fixed part 10. The patient wears the fixed part 10 on the thigh and the movable part 11 on the calf, and starts the drive motor 12 to enable the patient to walk.

[0034] Working principle: The patient wears the fixed part 10 on the thigh and the movable part 11 on the calf. The suspension airbag 21 is inflated through the air nozzle 22, suspending the airbag in water. The drive motor 12 is activated, enabling the patient to walk. The micro motor 40 is activated, causing the transmission screw 41 to rotate on the movable block 42, which moves on the two guide rods 33. The movable block 42 drives the operating arc block 50 on the bearing block 43 to move, allowing the operating arc block 50 to engage with only one of the guide rods at a time. The arc-drawing block 60 is engaged, and the traction block 60 is subjected to force. Pushing the traction block 60 causes one end of the adjusting rod 62 to move inside the mounting tube 61. The telescopic spring 63 is stretched, and the traction plate 32 drives the locking block 53 on the connecting block 70 to move, so that the locking groove 71 and the operating block 13 are no longer locked to the connecting rope 20. Under the buoyancy of the suspension airbag 21, the counterweight lead block 52 released on the connecting rope 20 is suspended, which can adjust the counterweight of the patient, making operation convenient and improving the safety of use.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An underwater rehabilitation robot with adjustable counterweight, characterized in that: The device includes a fixed part (10) and a movable part (11). An operating block (13) is fixedly mounted on the fixed part (10). An inner cavity (23) is provided inside the operating block (13). A transparent window (30) is fixedly mounted on the surface of the fixed part (10). The transparent window (30) is close to the inner cavity (23). Multiple traction grooves (31) are provided on the inner wall of the inner cavity (23). An installation tube (61) is fixedly mounted on each traction groove (31). An adjusting rod (62) is movably mounted on one end of each installation tube (61). One end of the adjusting rod (62) moves inside the installation tube (61). A traction plate (32) is fixedly mounted on the other end of each adjusting rod (62). The traction plate (32) is movably assembled with the traction groove (31). The bottom of the traction plate (32) is fixedly equipped with a traction arc block (60). The traction arc block (60) is located in the inner cavity (23). The mounting tube (61) and the adjusting rod (62) are both equipped with telescopic springs (63). The two ends of the telescopic springs (63) are fixedly assembled with the traction groove (31) and the traction plate (32) respectively. The traction plate (32) is fixedly equipped with a connecting block (70). The connecting block (70) movably passes through the operating block (13). One end of the connecting block (70) is fixedly equipped with a locking block (53). The locking block (53) is provided with a locking groove (71). The locking groove (71) is close to the surface of the operating block (13).

2. The underwater rehabilitation robot with adjustable counterweight according to claim 1, characterized in that: The bottom of the operating block (13) is fixedly equipped with multiple connecting ropes (20), which are respectively connected to the slots (71) on the card block (53). One end of each connecting rope (20) is fixedly equipped with a suspension airbag (21), and each suspension airbag (21) is fixedly equipped with an air nozzle (22).

3. The underwater rehabilitation robot with adjustable counterweight according to claim 2, characterized in that: A fixing rope (51) is fixedly mounted on the connecting rope (20), and a counterweight lead block (52) is fixedly mounted on each fixing rope (51). The counterweight lead block (52) is located between two locking blocks (53).

4. The underwater rehabilitation robot with adjustable counterweight according to claim 1, characterized in that: The inner wall of the inner cavity (23) is symmetrically fixedly equipped with guide rods (33), and the end face of the operating block (13) is fixedly equipped with a micro motor (40). The output end of the micro motor (40) is fixedly equipped with a transmission screw (41), and the transmission screw (41) moves through the inner cavity (23).

5. The underwater rehabilitation robot with adjustable counterweight according to claim 4, characterized in that: The transmission screw (41) is threaded with a movable block (42), which is movably assembled with two guide rods (33). A bearing block (43) is fixedly assembled on the side of the movable block (42).

6. The underwater rehabilitation robot with adjustable counterweight according to claim 5, characterized in that: An operating arc block (50) is fixedly mounted on the bearing block (43), and the operating arc block (50) can only be engaged with one of the traction arc blocks (60) in turn.

7. The underwater rehabilitation robot with adjustable counterweight according to claim 1, characterized in that: A drive motor (12) is fixedly mounted on the fixed part (10), and the output end of the drive motor (12) moves through the fixed part (10).

8. The underwater rehabilitation robot with adjustable counterweight according to claim 7, characterized in that: The output end of the drive motor (12) is fixedly equipped with a movable part (11), which is located below the fixed part (10).