Electric lifting actuator for suspension rehabilitation training

Abstract

The utility model provides an electric lifting actuator for suspension rehabilitation training. The electric lifting actuator comprises a shell, a sliding rail, a sliding block assembly, a driving assembly, a guide wheel set, a first suspension rope and a second suspension rope. The sliding rail is arranged in the shell and horizontally arranged in the length direction of the shell, the sliding block assembly is slidably connected to the sliding rail, and the driving assembly is in transmission connection with the sliding block assembly and used for driving the sliding block assembly to slide along the sliding rail; a first notch and a second notch are formed in the two ends of the bottom of the shell respectively, the guide wheel set is fixedly connected into the shell, one end of the first suspension rope and one end of the second suspension rope are connected with the sliding block assembly, and the other ends of the first suspension rope and the second suspension rope extend out of the shell from the first notch and the second notch respectively after being subjected to direction adjustment through the guide wheel set. The first suspension rope and the second suspension rope synchronously move up and down along with sliding of the sliding block assembly. The driving assembly drives the sliding block assembly to slide along the sliding rail to drive the first suspension rope and the second suspension rope to move up and down synchronously, and rehabilitation training of a patient is prevented from being affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lifting actuator, specifically is a kind of electric lifting actuator for suspension rehabilitation training. BACKGROUND

[0002] There are many patients with limb paralysis caused by various accidents or natural disasters, and these patients lose the ability of autonomous movement due to limb, which affects the benign circulation of blood and the flexibility of joints, and thus easily leads to the degradation and deformation of the structure of motor organs, and also causes the gradual decline of internal organs over time, which is very unfavorable for the recovery of nervous system and the improvement of muscle strength, so that postoperative exercise training of patients becomes the main means of rehabilitation.

[0003] Since the workload of artificial assistance for patients to do rehabilitation training is very large, people usually use suspension rehabilitation training equipment to assist patients to do limb rehabilitation training, which not only has high efficiency, but also greatly reduces the workload of medical staff. The existing suspension rehabilitation training equipment usually includes a suspension training frame and a lifting actuator installed on the suspension training frame. The lifting actuator drives two suspension ropes to move up and down synchronously through two drive motors. The free end of the suspension rope is connected with a ring-shaped hook, which is used to suspend the limb that needs rehabilitation training, so that the limb moves up and down with the suspension rope. However, in the actual operation process, various unexpected situations often occur, which leads to different driving rates of the two drive motors, so that the suspension ropes cannot move up and down synchronously, and thus affect the rehabilitation training of patients. Moreover, the setting of two drive motors in the lifting actuator also increases the manufacturing cost of the equipment. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the defects of the above prior art, and to provide an electric lifting actuator that can make two suspension ropes move up and down synchronously to ensure the effect of suspension rehabilitation training.

[0005] The technical solution of the utility model is to provide an electric lifting actuator for suspension rehabilitation training with the following structure: a housing, a slide rail, a slide block assembly, a drive assembly, a guide wheel set, a first suspension rope and a second suspension rope. The slide rail is arranged in the housing and is arranged horizontally along the length direction of the housing. The slide block assembly is slidingly connected to the slide rail. The drive assembly is fixed in the housing and is in transmission connection with the slide block assembly, for driving the slide block assembly to slide along the slide rail.

[0006] The shell bottom is respectively provided with a first notch and a second notch at two ends, the guide wheel set is fixedly connected in the shell, one end of the first suspension rope and the second suspension rope is connected with the sliding block assembly, and the other end is extended to outside of the shell from the first notch and the second notch respectively after direction adjustment of the guide wheel set; the first suspension rope and the second suspension rope move up and down synchronously with the sliding of the sliding block assembly.

[0007] Compared with the prior art, the electric lifting actuator for suspension rehabilitation training has the following advantages after the above structure is adopted:

[0008] The utility model discloses setting up the slide rail in the shell, and the first suspension rope and the second suspension rope are driven to move up and down synchronously by the driving of the driving assembly and the sliding of the sliding block assembly along the slide rail, so that the rehabilitation training of the patient is not affected by the height difference of the free end of the first suspension rope and the second suspension rope, and only one driving assembly is needed to drive the first suspension rope and the second suspension rope, so that the manufacturing cost of the equipment is reduced.

[0009] As a preferred, the sliding block assembly comprises a sliding block, two connecting plates and two pressing plates corresponding to the two connecting plates; the lower end of the sliding block is slidably connected to the slide rail, and the two connecting plates are respectively connected to the two side walls of the sliding block; the two connecting plates are respectively provided with through grooves, and one end of the first suspension rope and the second suspension rope connected to the sliding block assembly is respectively arranged in one of the through grooves; the two pressing plates are respectively connected to the corresponding connecting plates through screws, and the first suspension rope and the second suspension rope are pressed in the through grooves.

[0010] The lower end of the sliding block has a clamping part that can be clamped on the slide rail to prevent the sliding block from falling off the slide rail; the outer diameter of the first suspension rope and the second suspension rope is larger than the inner diameter of the through groove, so that the first suspension rope and the second suspension rope can be prevented from falling off when the pressing plate is connected to the connecting plate.

[0011] As a preferred, the driving assembly comprises a driving motor, a lead screw and a support seat; the support seat is two, and is respectively arranged at the two ends of the slide rail; the lead screw is rotatably connected to the support seat and is arranged in parallel with the slide rail; the sliding block is provided with a screw hole coaxial with the lead screw, the lead screw passes through the screw hole and is threadedly connected to the sliding block; the driving motor is fixed in the shell and is in transmission connection with the lead screw, and is used for driving the lead screw to rotate circumferentially and driving the sliding block to move on the slide rail. The driving motor is a stepping motor, and the lifting height of the first suspension rope and the second suspension rope can be accurately controlled through the transmission of the lead screw and the sliding block.

[0012] As a preferred, the support seat is provided with a bearing, and the two ends of the lead screw are rotatably connected to the corresponding bearings. The bearing can reduce the friction between the lead screw and the support seat, so that the lead screw rotates more smoothly.

[0013] Preferably, the drive motor is located at one end of the lead screw, and the output shaft of the drive motor is connected to the lead screw via a coupling.

[0014] Preferably, the guide wheel assembly includes a first guide wheel, a second guide wheel, a third guide wheel, and a fourth guide wheel fixedly connected within the housing. The first and second guide wheels are positioned near the first recess, and the third and fourth guide wheels are positioned near the second recess. The first and fourth guide wheels are located on one side of the slide rail, and the second and third guide wheels are located on the other side of the slide rail. The free end of the first suspension rope extends from the first recess to the outside of the housing after being guided by the first guide wheel, and the free end of the second suspension rope extends from the second recess to the outside of the housing after being guided sequentially by the second, third, and fourth guide wheels. The guide wheel assembly provides guidance, enabling the first and second suspension ropes to rise and fall synchronously while accurately passing through their corresponding first and second recesses.

[0015] Preferably, each of the first guide wheel, the second guide wheel, the third guide wheel, and the fourth guide wheel is provided with a stop bar to prevent the first suspension rope or the second suspension rope from falling off the corresponding guide wheel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a partial structural schematic diagram of the present invention.

[0018] Figure 3 This is a schematic diagram of the slider assembly and drive assembly in this utility model.

[0019] Figure 4 This is a partial structural schematic diagram of the present invention from a top view.

[0020] Figure 5 This is a schematic diagram of the slider assembly in this utility model.

[0021] Figure 6 This is a schematic diagram of the structure of the first guide wheel in this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Housing; 11. First notch; 12. Second notch; 2. Slide rail; 3. Slider assembly; 31. Slider; 32. Connecting plate; 321. Through groove; 33. Pressing plate; 4. Drive assembly; 41. Drive motor; 42. Lead screw; 43. Support base; 44. Bearing; 45. Coupling; 5. Guide wheel assembly; 51. First guide wheel; 52. Second guide wheel; 53. Third guide wheel; 54. Fourth guide wheel; 55. Stop bar; 6. First suspension rope; 7. Second suspension rope. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. At the same time, the terms "first", "second", etc. are only used to distinguish the names of each component and do not have a primary or secondary relationship. Therefore, they should not be construed as limitations on this utility model.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown;

[0027] This utility model discloses an electric lifting actuator for suspension rehabilitation training: including a housing 1, a slide rail 2, a slider assembly 3, a drive assembly 4, a guide wheel assembly 5, a first suspension rope 6, and a second suspension rope 7.

[0028] The slide rail 2 is set inside the housing 1 and is horizontally arranged along the length of the housing 1. The slider assembly 3 is slidably connected to the slide rail 2. The drive assembly 4 is fixed inside the housing 1 and is connected to the slider assembly 3 for driving the slider assembly 3 to slide along the slide rail 2.

[0029] The bottom of the housing 1 has a first recess 11 and a second recess 12 at both ends. The guide wheel assembly 5 is fixedly connected inside the housing 1. One end of the first suspension rope 6 and the second suspension rope 7 is connected to the slider assembly 3, and the other end extends from the first recess 11 and the second recess 12 to the outside of the housing 1 after the direction is adjusted by the guide wheel assembly 5, and is connected to a ring hook for suspending the patient's limb. The first suspension rope 6 and the second suspension rope 7 move up and down synchronously with the sliding of the slider assembly 3.

[0030] This invention features a slide rail 2 inside the housing 1. A drive assembly 4 drives a slider assembly 3 to slide along the slide rail 2, thereby causing the first suspension rope 6 and the second suspension rope 7 to move up and down synchronously. This avoids the impact on the patient's rehabilitation training caused by the height difference between the free ends of the first suspension rope 6 and the second suspension rope 7. Furthermore, this invention only requires one drive assembly 4 to drive the first suspension rope 6 and the second suspension rope 7, reducing the manufacturing cost of the equipment.

[0031] The guide wheel assembly 5 includes a first guide wheel 51, a second guide wheel 52, a third guide wheel 53, and a fourth guide wheel 54 fixedly connected inside the housing 1. The first guide wheel 51 and the second guide wheel 52 are located at one end near the first recess 11, and the third guide wheel 53 and the fourth guide wheel 54 are located at one end near the second recess 12. The first guide wheel 51 and the fourth guide wheel 54 are located on one side of the slide rail 2 (near the first recess 11 and the second recess 12), and the second guide wheel 52 and the third guide wheel 53 are located on the other side of the slide rail 2. The free end of the first suspension rope 6 extends from the first recess 11 to the outside of the housing 1 after being guided by the first guide wheel 51, and the free end of the second suspension rope 7 extends from the second recess 12 to the outside of the housing 1 after being guided by the second guide wheel 52, the third guide wheel 53, and the fourth guide wheel 54 in sequence. The guide wheel assembly 5 has a guiding function, enabling the first suspension rope 6 and the second suspension rope 7 to rise and fall synchronously while accurately passing through the corresponding first recess 11 and second recess 12.

[0032] Each of the first guide wheel 51, the second guide wheel 52, the third guide wheel 53, and the fourth guide wheel 54 is provided with a stop bar 55 to prevent the first suspension rope 6 or the second suspension rope 7 from falling off the corresponding first guide wheel 51, second guide wheel 52, third guide wheel 53, or fourth guide wheel 54.

[0033] The slider assembly 3 includes a slider 31, two connecting plates 32, and two clamping plates 33 corresponding to the two connecting plates 32. The lower end of the slider 31 is slidably connected to the slide rail 2, and the two connecting plates 32 are respectively connected to the two side walls of the slider 31. Each of the two connecting plates 32 is provided with a through groove 321, and the ends of the first suspension rope 6 and the second suspension rope 7 connected to the slider assembly 3 are respectively set in one of the through grooves 321. The two clamping plates 33 are respectively connected to the corresponding connecting plates 32 by screws, and the first suspension rope 6 and the second suspension rope 7 are clamped in the through groove 321.

[0034] The lower end of the slider 31 has a locking part that can be locked onto the slide rail 2 to prevent the slider 31 from falling off the slide rail 2; the outer diameter of the first suspension rope 6 and the second suspension rope 7 is larger than the inner diameter of the through groove 321, which can prevent the clamping plate 33 from falling off when it is connected to the connecting plate 32; knots can also be tied at the ends of the first suspension rope 6 and the second suspension rope 7 to make the connection more secure.

[0035] The drive assembly 4 includes a drive motor 41, a lead screw 42, and a support base 43. There are two support bases 43, which are respectively set at both ends of the slide rail 2. The lead screw 42 is rotatably connected to the support base 43 and is set parallel to the slide rail 2. The slider 31 is provided with a screw hole coaxial with the lead screw 42. The lead screw 42 passes through the screw hole and is threadedly connected to the slider 31. The drive motor 41 is fixed in the housing 1 and is connected to the lead screw 42 for transmission. It is used to drive the lead screw 42 to rotate circumferentially and drive the slider 31 to move on the slide rail 2.

[0036] The drive motor 41 is a DC geared motor, which is driven by the lead screw 42 and the slider 31, and can precisely control the lifting height of the first suspension rope 6 and the second suspension rope 7.

[0037] The support base 43 is equipped with bearings 44, and the two ends of the lead screw 42 are rotatably connected to the corresponding bearings 44. The bearings 44 can reduce the friction between the lead screw 42 and the support base 43, making the lead screw 42 rotate more smoothly.

[0038] The drive motor 41 is located at one end of the lead screw 42, and the output shaft of the drive motor 41 is connected to the lead screw 42 through a coupling 45. The first recess 11 and the second recess 12 can also be through holes, and a sleeve is provided on the through hole to reduce the friction between the first suspension rope 6, the second suspension rope 7 and the housing 1, and reduce the wear of the suspension ropes.

[0039] A wireless transmission module and a controller can also be installed inside the housing 1. The controller is electrically connected to the wireless transmission module and the drive motor 41. The wireless transmission module controls the output of the drive motor 41 by wirelessly transmitting control commands to an external remote control.

[0040] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An electric lifting actuator for suspension rehabilitation training, characterized in that: It includes a housing (1), a slide rail (2), a slider assembly (3), a drive assembly (4), a guide wheel group (5), a first suspension rope (6), and a second suspension rope (7); the slide rail (2) is set inside the housing (1) and is horizontally arranged along the length direction of the housing (1); the slider assembly (3) is slidably connected to the slide rail (2); the drive assembly (4) is fixed inside the housing (1) and is connected to the slider assembly (3) for driving the slider assembly (3) to slide along the slide rail (2); The bottom of the housing (1) is provided with a first recess (11) and a second recess (12) at both ends. The guide wheel assembly (5) is fixedly connected inside the housing (1). One end of the first suspension rope (6) and the second suspension rope (7) are connected to the slider assembly (3), and the other end extends from the first recess (11) and the second recess (12) to the outside of the housing (1) after the direction is adjusted by the guide wheel assembly (5). The first suspension rope (6) and the second suspension rope (7) move up and down synchronously with the sliding of the slider assembly (3).

2. The electric lifting actuator for suspension rehabilitation training according to claim 1, characterized in that: The slider assembly (3) includes a slider (31), two connecting plates (32), and two clamping plates (33) corresponding to the two connecting plates (32). The lower end of the slider (31) is slidably connected to the slide rail (2), and the two connecting plates (32) are respectively connected to the two side walls of the slider (31). Each of the two connecting plates (32) is provided with a through groove (321), and the ends of the first suspension rope (6) and the second suspension rope (7) connected to the slider assembly (3) are respectively set in one of the through grooves (321). The two clamping plates (33) are respectively connected to the corresponding connecting plates (32) by screws, and the first suspension rope (6) and the second suspension rope (7) are pressed into the through groove (321).

3. The electric lifting actuator for suspension rehabilitation training according to claim 2, characterized in that: The drive assembly (4) includes a drive motor (41), a lead screw (42), and a support base (43). There are two support bases (43), which are respectively set at both ends of the slide rail (2). The lead screw (42) is rotatably connected to the support base (43) and is set parallel to the slide rail (2). The slider (31) is provided with a screw hole coaxial with the lead screw (42). The lead screw (42) passes through the screw hole and is threadedly connected to the slider (31). The drive motor (41) is fixed in the housing (1) and is connected to the lead screw (42) for transmission. It is used to drive the lead screw (42) to rotate circumferentially and drive the slider (31) to move on the slide rail (2).

4. An electric lifting actuator for suspension rehabilitation training according to claim 3, characterized in that: The support base (43) is provided with a bearing (44), and the two ends of the lead screw (42) are respectively rotatably connected to the corresponding bearing (44).

5. An electric lifting actuator for suspension rehabilitation training according to claim 4, characterized in that: The drive motor (41) is located at one end of the lead screw (42), and the output shaft of the drive motor (41) is connected to the lead screw (42) through a coupling (45).

6. An electric lifting actuator for suspension rehabilitation training according to claim 1, characterized in that: The guide wheel assembly (5) includes a first guide wheel (51), a second guide wheel (52), a third guide wheel (53), and a fourth guide wheel (54) fixedly connected inside the housing (1). The first guide wheel (51) and the second guide wheel (52) are located at one end near the first recess (11), and the third guide wheel (53) and the fourth guide wheel (54) are located at one end near the second recess (12). The first guide wheel (51) and the fourth guide wheel (54) are located on one side of the slide rail (2), and the second guide wheel (52) and the third guide wheel (53) are located on the other side of the slide rail (2). The free end of the first suspension rope (6) extends from the first recess (11) to the outside of the housing (1) after being guided by the first guide wheel (51). The free end of the second suspension rope (7) extends from the second recess (12) to the outside of the housing (1) after being guided by the second guide wheel (52), the third guide wheel (53), and the fourth guide wheel (54) in sequence.

7. An electric lifting actuator for suspension rehabilitation training according to claim 6, characterized in that: The first guide wheel (51), the second guide wheel (52), the third guide wheel (53) and the fourth guide wheel (54) are all provided with baffles (55) to prevent the first suspension rope (6) or the second suspension rope (7) from falling off the corresponding guide wheel.

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