CN102631764B - Lumbar support weight-reducing device - Google Patents

Abstract

The object of the present invention is to provide a lumbar support weight-reducing device, which includes a main bracket, a motor, a screw, a nut, a vertical slide rail, a horizontal slide rail, a slider, an extension spring, a lumbar support rod, a lumbar support plate, and a waist support belt. 1. The support sleeve block, the vertical slide rail is fixed on the main bracket, the first slider is installed on the vertical slide rail, the first slide block is connected with the hollow support sleeve block, the motor is fixed on the main bracket, and the output end of the motor Connect the lead screw. The lead screw passes through the support block and is installed on the main bracket through the bearing support. The nut is set on the lead screw and placed under the support block. The horizontal slide rail is connected to the support block. On the horizontal slide rail, the lumbar support bar is connected to the support block through the second slider, and the front baffle is installed at the end of the horizontal slide rail. spring, the waist support board is connected to the waist support bar, and the waist support belt is installed on the waist support board. The invention is more suitable for use in family, hospital and other occasions.

Description

Lumbar support weight loss device

technical field

The invention relates to the field of rehabilitation medicine, in particular to a medical device for motor dysfunction of lower limbs.

Background technique

At present, there are more and more lower limb motor dysfunctions caused by neurological diseases such as bone marrow injury, traumatic brain injury, cerebral palsy, Parkinson's disease, and lower limb muscle and joint damage, which greatly endanger human health. Using gait rehabilitation training to carry out physical rehabilitation therapy for such patients is a practical and effective method in clinical practice. The use of Partial Body Weight Support (PBWS) in gait rehabilitation training is beneficial to the rehabilitation of lower limb dysfunction and the improvement of walking ability. With the development of rehabilitation medical technology, weight loss support system has been widely used clinically.

At present, the existing weight-reducing support systems include: (1) the passive counterweight weight-reducing support system represented by the Lokomat weight-reducing walking training rehabilitation robot. Inertial force cannot guarantee the constant of degravity force. (2) The passive spring weight reduction support system represented by the Lokomat follow-up product Lokolift, which uses a passive spring and an active closed-loop control device to eliminate the inertial impact of the counterweight and maintain a constant weight reduction force, but the load range is small, And difficult to control. (3) Active weight-reducing support systems represented by application numbers 200910048312.9 and 201010515112.2. The invention patent with application number 200910048312.9 is an active weight-reducing platform based on motor control. The motor drives the screw to pull the wire rope, and drives the sling to remove the patient's (or trainer's) weight, so that the patient (or trainer) Ability to train with constant weight loss. The invention patent with the application number 201010515112.2 is a pneumatically controlled weight-reducing support system, which controls the tension of the suspension rope to be constant by controlling the pneumatically controlled.

The above-mentioned several forms of weight loss support systems all use suspension devices, so that the entire training device must be designed very tall, and the upper limbs of the patient (or trainer) are restrained, and they cannot move independently. Long-term training of the patient (or trainer) It is prone to discomfort and the possibility of falling during training. The invention patent with the application number of 2009100115216.4 provides a way to adjust the horizontal frame and longitudinal frame according to the thickness of the patient's (or trainer's) body so that the patient's (or trainer's) upper limbs are just on the longitudinal frame and the weight loss is controlled by themselves. , this method consumes too much physical strength of the patient (trainer), the weight loss effect is not good, and the practicability is poor.

Contents of the invention

The purpose of the present invention is to provide a lumbar support and weight loss device that can effectively improve the deficiencies of existing weight loss support methods and improve the effect of weight loss training.

The purpose of the present invention is achieved like this:

The invention is a lumbar support weight-reducing device, which is characterized in that it includes a main bracket, a motor, a screw, a nut, a vertical slide rail, a horizontal slide rail, a slider, an extension spring, a lumbar support rod, a lumbar backing plate, and a waist support belt. 1. The support sleeve, the slide block includes a first slide block and a second slide block, the vertical slide rail is fixed on the main bracket, the first slide block is installed on the vertical slide rail, the first slide block and the hollow support sleeve block Connected, the motor is fixed on the main bracket, the output end of the motor is connected to the lead screw, the screw passes through the support block, and is installed on the main support through the bearing support, the nut is set on the lead screw and placed under the support block to drive The support block moves up and down, the horizontal slide rail is connected to the support block, the second slider is installed on the horizontal slide rail, the waist support bar is connected to the support block through the second slide block, the front baffle is installed at the end of the horizontal slide rail, and the front block Extension springs are installed between the plate and the waist support rod, between the waist support rod and the support sleeve, the waist support board is connected to the waist support rod, and the waist support belt is installed on the waist support board.

The present invention may also include:

1. Strain gauges are pasted on the lumbar support rod.

2. A horizontal slide rail support is arranged below the horizontal slide rail, and horizontal slide rail support ribs are installed on the horizontal slide rail support, and the horizontal slide rail support ribs are connected to the support sleeve.

The advantage of the present invention is that: the whole lumbar support weight loss system realizes closed-loop active control, can control the size of the weight loss force to be constant according to different degrees of training requirements, and improve the effect of rehabilitation training; the control of the motor output torque can be controlled according to the patient (or trainer ) according to the actual rehabilitation training situation, arbitrarily adjust the size of the weight reduction force to achieve different training effects; through the lumbar support, the upper limbs of the person are liberated, which effectively prevents the person from falling during the training process, and because the extension spring and the lumbar support rod end The mechanical limitation of the waist makes the patient (or trainer) slightly swing up, down, left, and right during the training process, which is in line with the state of normal people when walking, and avoids the discomfort of the patient (or trainer) for long-term training; in addition, the waist The use of the supporting weight-reducing device makes the height of the whole training equipment much lower, and is more suitable for use in families and hospitals.

Description of drawings

Fig. 1 is a three-dimensional overall rendering of the present invention;

Fig. 2 is a front view (partial sectional view) of the present invention;

Figure 3 is an axonometric view of the lumbar support rod;

Fig. 4 is a closed-loop control block diagram of the present invention.

Detailed ways

The present invention is described in more detail below in conjunction with accompanying drawing example:

1 to 4, a lumbar support weight loss device of the present invention includes a main support 16 and a lumbar support weight loss mechanism. The main support 16 is connected to the base of the training equipment used in conjunction with the flange connection; The heavy mechanism is installed on the main bracket 16; the structure of the lumbar support weight-reducing mechanism is: a driving motor 15 fixed on the main bracket 16 drives the ball screw 8 to rotate through a shaft coupling 14, drives the screw nut 11, and then Drive the entire supporting and weight-reducing mechanism to realize linear lifting movement, and the encoder at the end of the motor controls the lifting position; the ball screw 8 is installed on the main bracket 16 through the bearing supports 13 at both ends, and the screw nut 11 is connected with the load-bearing bracket 7; Bracket 7 is made up of support sleeve block 22, horizontal slide rail support 20, horizontal slide rail support rib 21 and front baffle plate 19 welding, and horizontal slide rail 6 is installed on the horizontal slide rail support 20; 23 is connected with the vertical slide rail slide block 10, vertical slide rail 12 is installed on the main support 16, and vertical slide rail slide block 10 is installed on the vertical slide rail 12; Waist support bar 3 passes horizontal slide rail slide block 5 and The load-bearing bracket 7 is connected, and there is a tension spring 4 between the load-bearing bracket 7 and the waist support rod 3, which limits the back and forth movement of the waist; the waist support rod 3 and the waist support board 17 are connected by pins 18, and the waist support board 17 is inserted into the waist In the support rod 3, the front end of the waist support rod 3 is constrained by the angle range of the left and right rotation of the waist support board 17 as shown in Figure 3; the waist support belt 1 is fixed on the waist support board 17; The waist belt 1 fixes the waist.

In conjunction with Fig. 4, the waist support weight-reducing device described above is used in conjunction with exercise panels, treadmills, gait training machines, rehabilitation training robots, etc., the patient (or trainer) fixes the waist through the waist belt 1, The gravity is input to the controller, the controller converts the force signal into a voltage signal and transmits it to the motor driver, and the motor driver converts the voltage signal into an output torque signal to drive the motor to rotate and drive the ball screw to lift the lumbar support weight loss mechanism for the patient (or trainer) ) to reduce its own weight, the fixed measuring points on the waist support rod 3 are pasted with strain gauges 2, which can measure the strain of the measuring points in the training process, and collect and process the data through the data collector and processor to obtain the actual weight loss. The gravity is fed back to the controller to realize the force closed-loop control loop, so as to control the constant weight reduction force; the encoder at the end of the motor can control the motor to rotate according to the specified speed, and feedback the speed to the motor driver to realize the speed and position feedback loop.

Claims (1)

1. a lumbar support weight reducing device, is characterized in that: comprise main support, motor, leading screw, nut, upright slide rail, horizontal slide rail, slide block, extension spring, lumbar support bar, waist backup plate, back belt, support set piece, slide block comprises the first slide block and the second slide block, upright slide rail is fixed on main support, the first slide block is arranged on upright slide rail, and the first slide block is connected with the support set piece of hollow, and motor is fixed on main support, the output of motor connects leading screw, and leading screw is through support set piece, by bearing spider, be arranged on main support, nut sleeve is on leading screw, thereby being placed in support set piece below drives support set piece to move up and down, horizontal slide rail connects support set piece, and the second slide block is arranged on horizontal slide rail, and lumbar support bar connects support set piece by the second slide block, front apron is installed in horizontal slide rail end, between front apron and lumbar support bar, between lumbar support bar and support set piece, extension spring is all installed, waist backup plate connects lumbar support bar, and back belt is arranged on waist backup plate,

On described lumbar support bar, post foil gauge;

Described horizontal slide rail below arranges horizontal slide rail support, and horizontal slide rail support floor is installed on horizontal slide rail support, and horizontal slide rail support floor is connected with support set piece.