Portable rehabilitation training hand gripping device

Abstract

The invention discloses a portable rehabilitation training hand grabber, and belongs to the technical field of hand rehabilitation training. A portable rehabilitation training hand grasping device comprises a support worn on the hand, a training air cavity is formed in the support, an adjusting part is arranged at one end of the training air cavity, a training part is arranged at the other end of the training air cavity, the training part comprises a training piston column slidably connected into the training air cavity, an extension arm is fixedly connected to the support, and the extension arm is fixedly connected to the support. A pulling piece is arranged on the extension arm, one end of the pulling piece is connected to the finger, and the other end of the pulling piece is connected with the training piston column through a connecting pull rope; a plurality of groups of limiting shafts are arranged on the bracket; by arranging the adjusting air cavity, the training piston column and the limiting shaft capable of sliding, in the training process of a trainee, the situation that the training piston column suddenly resets when the pulling force is insufficient can be prevented, the hands and fingers of the trainee are protected, meanwhile, the strength during training is conveniently adjusted, and the training device can be worn on the hand and is convenient to carry.

Description

Technical Field

[0001] The present invention relates to the technical field of hand rehabilitation training, and in particular to a portable hand gripper for rehabilitation training. Background Art

[0002] Rehabilitation trainers are devices specifically used for rehabilitation training to help patients recover motor function, increase muscle strength and improve physical function. These devices are usually used by medical institutions or rehabilitation centers to help patients with rehabilitation treatment;

[0003] There are many stroke patients, brain function injury patients, muscle degeneration patients and elderly people, whose hand grasping ability has different degrees of damage and degeneration. If rehabilitation treatment and rehabilitation training are not carried out in time, the hand grasping ability may be irreversibly damaged. Therefore, a hand grasping ability rehabilitation trainer is needed to treat and train the patient's hand grasping ability. Therefore, a hand grasping device is particularly needed;

[0004] Existing portable hand grippers mostly use elastic structures (such as springs) rather than weight components as the source of training force. However, when the existing springs lose force or the grip is careless during use, the elastic structure can easily quickly pull the trainee's fingers back to their original position. This rapid reset poses a safety hazard, and the springs are not convenient for adjusting the training force during use, making them inconvenient to use. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems raised in the above background technology and to propose a portable rehabilitation training hand gripper.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A portable rehabilitation training hand gripper, comprising a bracket worn on the hand, a training air cavity provided in the bracket, an adjustment portion provided at one end of the training air cavity and a training portion provided at the other end: the training portion comprises a training piston column slidably connected to the training air cavity, an extension arm fixedly connected to the bracket, a pulling member provided on the extension arm, one end of the pulling member being connected to the finger and the other end being connected to the training piston column via a connecting rope; a plurality of groups of limiting shafts are provided on the bracket, the lower ends of the limiting shafts are in contact with the training piston column, the sides of the limiting shafts are fixedly connected to the limiting springs, and the other ends of the limiting springs are fixedly connected to the bracket.

[0008] In order to facilitate pulling the training piston column, preferably, the pulling member includes a main lever member rotatably connected to the extension arm, the lower end of the main lever member is provided with a finger sleeve, and the upper side of the main lever member is provided with a slot, and the end of the connecting rope away from the training piston column is connected to the slot.

[0009] Preferably, the card slots are provided in 2-8 groups.

[0010] In order to facilitate the rotation of the main lever member when bending the finger, preferably, a connecting member is provided on the finger sleeve, and a connecting groove is provided at the lower end of the main lever member, and the connecting member is slidably connected in the connecting groove.

[0011] In order to facilitate the manual resetting of the training piston column, preferably, a cross rod is slidably connected to the bracket, and the cross rod includes a main rod and a secondary rod. The main rod is slidably connected to the limit shaft, and the main rod passes through the limit shaft. The secondary rod is externally connected to a resetting device for resetting the limit shaft before resetting the training piston column.

[0012] In order to facilitate driving the cross rod, preferably, the reset device includes a sub-lever member rotatably connected to the bracket, one end of the sub-lever member is in contact with the sub-rod, a sliding plate is slidably connected in the bracket, one end of the sliding plate is in contact with the sub-lever member, a driving button is slidably connected to the extension arm, the upper end of the driving button is in contact with the main lever member, the lower end of the driving button is in contact with the sliding plate, and the end of the sliding plate in contact with the driving button is arranged in an inclined surface.

[0013] Preferably, a pressure shaft is fixedly connected to the main lever member, and the pressure shaft is in contact with the driving button.

[0014] Preferably, the adjusting portion comprises an adjusting piston slidably connected in the training air cavity, and an adjusting threaded shaft is fixedly connected to the adjusting piston.

[0015] Preferably, the bracket is provided with an adjusting air cavity communicating with the training air cavity, and the adjusting air cavity is provided with an adjusting plug.

[0016] Preferably, a fixing belt is provided at the lower end of the bracket.

[0017] Compared with the prior art, the present invention provides a portable rehabilitation training hand gripper with the following beneficial effects:

[0018] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The present invention provides an adjusting air chamber, a training piston column and a sliding limit shaft, which can prevent the training piston column from suddenly resetting when the tension is insufficient during the training process, thereby protecting the hands and fingers of the trainees, and making it easy to adjust the strength during training. The present invention can be worn on the hand and is easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a portable rehabilitation training hand gripper proposed by the present invention;

[0020] Figure 2This is a structural schematic diagram of a main lever component of a portable rehabilitation training hand gripper proposed by the present invention;

[0021] Figure 3 This is a schematic cross-sectional view of a portable hand gripper for rehabilitation training proposed by the present invention;

[0022] Figure 4 A portable rehabilitation training hand gripper proposed by the present invention Figure 3 Schematic diagram of the structure of part A;

[0023] Figure 5 This is a schematic structural diagram of a secondary lever component of a portable rehabilitation training hand gripper proposed by the present invention;

[0024] Figure 6 This is a schematic structural diagram of a training piston column of a portable rehabilitation training hand gripper proposed by the present invention;

[0025] Figure 7 A portable rehabilitation training hand gripper proposed by the present invention Figure 6 Schematic diagram of the structure of part B.

[0026] Figure: 1. Bracket; 101. Fixing strap; 102. Training air chamber; 1021. Adjustment air chamber; 1022. Adjustment plug; 103. Adjustment threaded shaft; 104. Adjustment piston; 2. Training piston column; 201. Connecting rope; 3. Extension arm; 301. Main lever member; 302. Finger sleeve; 303. Connecting member; 304. Slot; 305. Pressing shaft; 4. Limiting shaft; 401. Limiting spring; 402. Cross rod; 4021. Main rod; 4022. Secondary rod; 403. Secondary lever member; 404. Sliding plate; 405. Drive button. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Example 1:

[0029] Reference Figure 1-7A portable rehabilitation training hand grasper includes a bracket 1 worn on the hand, a training air cavity 102 is provided in the bracket 1, one end of the training air cavity 102 is provided with an adjustment part, and the other end is provided with a training part: the training part includes a training piston column 2 slidably connected to the training air cavity 102, an extension arm 3 is fixedly connected to the bracket 1, and a pulling member is provided on the extension arm 3, one end of the pulling member is connected to the finger, and the other end is connected to the training piston column 2 through a connecting rope 201; a plurality of groups of limiting shafts 4 are provided on the bracket 1, the lower end of the limiting shaft 4 is in contact with the training piston column 2, the side of the limiting shaft 4 is fixedly connected to the limiting spring 401, and the other end of the limiting spring 401 is fixedly connected to the bracket 1; a fixing belt 101 is provided at the lower end of the bracket 1, and specifically, the connection of the fixing belt 101 can be connected by Velcro or buttons;

[0030] When using the device, first fix the bracket 1 of the device on the back of the trainee's hand. At this time, adjust the length of the training air cavity 102 to adjust the pulling force required by the trainee during training to provide different training effects.

[0031] When the training piston rod 2 is pulled by the pulling member to slide, the space in the training air chamber 102 gradually increases, so that the pressure in the training air chamber 102 decreases, so that the pressure required during the pulling process gradually increases, which can provide hand strength training for the trainee;

[0032] After the training piston rod 2 slides, when it passes the limit shaft 4, the training piston rod 2 does not support the limit shaft 4. Under the action of the limit spring 401, the limit shaft 4 moves downward, blocking the path of the training piston rod 2. When the trainee's fingers lose strength, the training piston rod 2 will be blocked by the limit shaft 4 at the first time when it is reset, which can effectively prevent the training piston rod 2 from resetting, thereby protecting the trainee's hands and fingers.

[0033] Furthermore, the number of limit shafts 4 can be multiple and the intervals between them are small, which provides better protection for the trainees.

[0034] The pulling member includes a main lever member 301 rotatably connected to the extension arm 3. A finger sleeve 302 is provided at the lower end of the main lever member 301. Specifically, rubber pads are provided at the contact areas between the finger sleeve 302 and the finger, and at the contact areas between the bracket 1 and the back of the hand. A slot 304 is provided on the upper side of the main lever member 301. The end of the connecting rope 201 away from the training piston rod 2 is connected to the slot 304.

[0035] When using this device, the finger sleeve 302 is put on the trainee's finger, and the connecting rope 201 is hung in the slot 304. When the trainee's finger bends, the finger sleeve 302 will pull the main lever 301 to rotate, and then the connecting rope 201 will pull the training piston column 2 to slide.

[0036] The slots 304 are provided in 2-8 groups. The slots 304 are provided in multiple groups. The slots 304 are located at different positions of the main lever member 301. By clamping the connecting rope 201 on the slots 304 at different positions, the finger pulling force required by the operator is also different, so that the operator can achieve different strength training while adjusting the initial pressure of the air cavity 1021 to the same.

[0037] A connecting piece 303 is provided on the finger sleeve 302, and a connecting groove is provided at the lower end of the main lever member 301. The connecting piece 303 is slidably connected in the connecting groove. The connection groove and the connecting piece 303 facilitate the connection and movement between the finger sleeve 302 and the main lever member 301.

[0038] A cross rod 402 is slidably connected to the bracket 1. The cross rod 402 includes a main rod 4021 and a secondary rod 4022. The main rod 4021 is slidably connected to the limit shaft 4. The main rod 4021 passes through the limit shaft 4. The secondary rod 4022 is externally connected to a reset device for resetting the limit shaft 4 before resetting the training piston rod 2.

[0039] The reset device includes a sub-lever member 403 rotatably connected to the bracket 1, one end of the sub-lever member 403 is in contact with the sub-rod 4022, a sliding plate 404 is slidably connected in the bracket 1, one end of the sliding plate 404 is in contact with the sub-lever member 403, and a driving button 405 is slidably connected to the extension arm 3, the upper end of the driving button 405 is in contact with the main lever member 301, and the lower end of the driving button 405 is in contact with the sliding plate 404, and the end of the sliding plate 404 in contact with the driving button 405 is arranged at an inclined surface.

[0040] A pressing shaft 305 is fixedly connected to the main lever member 301, and the pressing shaft 305 is in contact with the driving button 405;

[0041] During a single training session, the trainee will stop when the hand pulling force reaches the limit, and the corresponding training piston column 2 is blocked by the limit shaft 4. At this time, the trainee can reset his fingers. When returning to the initial position, he can tilt his fingers to the side away from the palm of his hand, which can not only relieve the tension when the hand is bent and clenched into a fist, but also drive the main lever member 301 to rotate in the opposite direction, and press the driving button 405 downward through the provided pressing shaft 305, and squeeze the sliding plate 404 to slide through the provided inclined surface, which will push the secondary lever member 403 to rotate, so that the upper end of the secondary lever member 403 rotates to push the secondary rod 4022, that is, the cross rod 402, to move upward, so that the main rod 4021 of the cross rod 402 pushes the limit shaft 4 upward to slide, so that the limit shaft 4 no longer blocks the training piston column 2;

[0042] At this time, since the operator's finger is already near the reset state, the training piston rod 2 is pulled back to its original position under the action of air pressure, which makes it easier for the trainer to conduct the next training.

[0043] It should be noted that since the pulling member and the training piston column 2 are connected by a connecting rope 201, when the connecting rope 201 becomes loose when the pulling member is reset, the reset between the pulling member and the training piston column 2 operates independently and does not affect each other, which is convenient for operation.

[0044] Example 2:

[0045] Reference Figure 1-7 A portable rehabilitation training hand gripper is basically the same as Example 1, except that the present application also discloses another method for adjusting the hand strength of the trainee. Specifically, the adjustment portion includes an adjustment piston 104 slidably connected to the training air cavity 102, and an adjustment threaded shaft 103 is fixedly connected to the adjustment piston 104; the bracket 1 is provided with an adjustment air cavity 1021 that communicates with the training air cavity 102, and the adjustment air cavity 1021 is provided with an adjustment plug 1022;

[0046] When it is necessary to adjust the pressure of the training air chamber 102 in the adjustment part, first open the adjustment plug 1022 so that the adjustment air chamber 1021 is connected to the outside world through the adjustment air chamber 1021. At this time, the adjustment threaded shaft 103 is threadedly arranged, and the adjustment threaded shaft 103 is rotated to adjust the position of the adjustment piston 104, thereby adjusting the gas pressure in the adjustment air chamber 1021, thereby achieving the adjustment of the strength of the trainee.

[0047] Example 3:

[0048] Reference Figure 1-7 A portable rehabilitation training hand gripper. When using the device, first fix the bracket 1 of the device on the back of the trainee's hand, put the finger sleeve 302 on the trainee's finger, and hang the connecting rope 201 in the card slot 304;

[0049] It should be noted that the training intensity can be adjusted simultaneously or separately by snapping the connecting rope 201 onto the slots 304 at different positions or adjusting the length of the training air chamber 102;

[0050] When the trainee bends his finger, the finger sleeve 302 pulls the main lever 301 to rotate, and then the connecting rope 201 pulls the training piston rod 2 to slide;

[0051] When the training piston rod 2 is pulled by the pulling member to slide, the space in the training air chamber 102 gradually increases, so that the pressure in the training air chamber 102 decreases, so that the pressure required during the pulling process gradually increases, which can provide hand strength training for the trainee;

[0052] After the training piston rod 2 slides, when it passes the limit shaft 4, the training piston rod 2 does not support the limit shaft 4. Under the action of the limit spring 401, the limit shaft 4 moves downward, blocking the path of the training piston rod 2. When the trainee's fingers lose strength, the training piston rod 2 will be blocked by the limit shaft 4 at the first time when it is reset, which can effectively prevent the training piston rod 2 from resetting, thereby protecting the trainee's hands and fingers.

[0053] During a single training session, the trainee will stop when the hand pulling force reaches the limit, and the corresponding training piston column 2 is blocked by the limit shaft 4. At this time, the trainee can reset his fingers. When returning to the initial position, he can tilt his fingers to the side away from the palm of his hand, which can not only relieve the tension when the hand is bent and clenched into a fist, but also drive the main lever member 301 to rotate in the opposite direction, and press the driving button 405 downward through the provided pressing shaft 305, and squeeze the sliding plate 404 to slide through the provided inclined surface, which will push the secondary lever member 403 to rotate, so that the upper end of the secondary lever member 403 rotates to push the secondary rod 4022, that is, the cross rod 402, to move upward, so that the main rod 4021 of the cross rod 402 pushes the limit shaft 4 upward to slide, so that the limit shaft 4 no longer blocks the training piston column 2;

[0054] At this time, since the operator's finger is already near the reset state, the training piston rod 2 is pulled back to its original position under the action of air pressure, which makes it easier for the trainer to conduct the next training.

[0055] Example 4:

[0056] Reference Figure 1-7 , a portable rehabilitation training hand grasper, is basically the same as Example 3. Furthermore, the operator can train single or multiple fingers separately by putting the finger sleeve 302 on the finger.

[0057] Example 5:

[0058] Reference Figure 1-7 A portable hand gripper for rehabilitation training is basically the same as that of Example 1, except that, when the limit shaft 4 needs to be reset, an electromagnet can be further provided at the upper end of the limit shaft 4. The limit shaft 4 is configured as an iron sheet. When the driving button 405 is pressed, the electromagnet can be turned on so that the electromagnet attracts and resets the limit shaft 4.

[0059] It should be noted that in this method, reset springs need to be installed on both sides of the drive button 405 so that the trainer can reset the drive button 405 when not training, and the electromagnet is powered off to reset the limit shaft 4 for the next training.

[0060] The present invention, through the provision of an adjusting air cavity 1021, a training piston column 2 and a sliding limit shaft 4, can prevent the training piston column 2 from suddenly resetting when the tension is insufficient during the training process, thereby protecting the hands and fingers of the trainees, and making it easy to adjust the strength during training. The trainee can be worn on the hand and is easy to carry.

[0061] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A portable hand gripper for rehabilitation training, characterized in that: The invention comprises a support (1) worn on the hand, wherein a training air cavity (102) is provided in the support (1), and an adjustment portion is provided at one end of the training air cavity (102), and a training portion is provided at the other end. The training part comprises a training piston column (2) slidably connected to the training air cavity (102); an extension arm (3) is fixedly connected to the bracket (1); a pulling member is provided on the extension arm (3); one end of the pulling member is connected to the finger, and the other end is connected to the training piston column (2) via a connecting rope (201); The bracket (1) is provided with a plurality of groups of limiting shafts (4), the lower ends of the limiting shafts (4) are in contact with the training piston column (2), the sides of the limiting shafts (4) are fixedly connected to the limiting springs (401), and the other ends of the limiting springs (401) are fixedly connected to the bracket (1).

2. The portable rehabilitation training hand gripper according to claim 1, characterized in that: The pulling member comprises a main lever member (301) rotatably connected to the extension arm (3); a finger sleeve (302) is provided at the lower end of the main lever member (301); a clamping groove (304) is provided at the upper side of the main lever member (301); and an end of the connecting rope (201) away from the training piston column (2) is connected to the clamping groove (304).

3. The portable rehabilitation training hand gripper according to claim 2, characterized in that: The card slots (304) are provided in 2-8 groups.

4. The portable rehabilitation training hand gripper according to claim 2, characterized in that: The finger sleeve (302) is provided with a connecting piece (303), the lower end of the main lever member (301) is provided with a connecting groove, and the connecting piece (303) is slidably connected in the connecting groove.

5. The portable rehabilitation training hand gripper according to claim 2, characterized in that: A cross rod (402) is slidably connected to the bracket (1), and the cross rod (402) includes a main rod (4021) and a secondary rod (4022). The main rod (4021) is slidably connected to the limit shaft (4), and the main rod (4021) passes through the limit shaft (4). The secondary rod (4022) is externally connected to a reset device for resetting the limit shaft (4) before resetting the training piston rod (2).

6. The portable rehabilitation training hand gripper according to claim 5, characterized in that: The reset device comprises a secondary lever member (403) rotatably connected to the bracket (1), one end of the secondary lever member (403) is in contact with the secondary lever (4022), a sliding plate (404) is slidably connected in the bracket (1), one end of the sliding plate (404) is in contact with the secondary lever member (403), a driving button (405) is slidably connected to the extension arm (3), the upper end of the driving button (405) is in contact with the main lever member (301), the lower end of the driving button (405) is in contact with the sliding plate (404), and the end of the sliding plate (404) in contact with the driving button (405) is arranged in an inclined surface.

7. The portable rehabilitation training hand gripper according to claim 6, characterized in that: A pressing shaft (305) is fixedly connected to the main lever member (301), and the pressing shaft (305) is in contact with the driving button (405).

8. The portable rehabilitation training hand gripper according to any one of claims 1 to 6, characterized in that: The regulating portion comprises a regulating piston (104) slidably connected in the training air cavity (102), and an regulating threaded shaft (103) is fixedly connected to the regulating piston (104).

9. The portable rehabilitation training hand gripper according to claim 8, characterized in that: The support (1) is provided with an adjusting air cavity (1021) communicating with the training air cavity (102), and the adjusting air cavity (1021) is provided with an adjusting plug (1022).

10. The portable rehabilitation training hand gripper according to any one of claims 1 to 6, characterized in that: A fixing belt (101) is provided at the lower end of the bracket (1).

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