CN111345989A - Flexible rehabilitation actuator - Google Patents

Abstract

A flexible rehabilitation actuator, which comprises an annular casing, a flexible membrane and a rigid pressing head; a plurality of rigid pressing heads are formed on the inner wall of the annular casing along the circumferential direction, each rigid pressing head is a hollow structure, and the A flexible membrane is fixedly connected to the end, the flexible membrane, the rigid pressing head and the annular casing form an air storage chamber, and the annular casing is processed with an air hole interface which communicates with the air storage chamber. Adjusting the fixed position of the actuator relative to the arm can realize massage of different parts of the arm, and the inflation and deflation control of different rigid pressing heads can realize the adjustable massage of the pressing parts.

Description

A flexible rehabilitation actuator

technical field

The invention relates to a rehabilitation instrument, in particular to a flexible rehabilitation actuator for arm muscle therapy with adjustable pressing force and position.

Background technique

Patients with muscle atrophy in their arms need to be rehabilitated by massage. The traditional massage adopts manual manual method. Although the pressing part can be accurately found, its disadvantage is that the massage force is not uniform and labor-intensive; there are arm massagers based on airbags and vibration motors on the market. The pressing force is adjustable but the pressing part does not. Targeted, and the equipment is too heavy, increasing the burden on patients.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies of the prior art, the present invention provides a flexible rehabilitation actuator with adjustable pressing force and position.

The technical scheme of the present invention is: a flexible rehabilitation actuator, which includes an annular casing, a flexible membrane and a rigid pressing head; a plurality of rigid pressing heads are formed on the inner wall of the annular casing along the circumferential direction, and each rigid pressing head is a hollow structure The end of each rigid pressing head is fixed with a flexible film, the flexible film, the rigid pressing head and the annular casing form an air storage chamber, and the annular casing is processed with an air hole interface that communicates with the air storage chamber.

Compared with the prior art, the present invention has the following beneficial effects:

The gas is injected into or extracted from the gas storage chamber through the air hole interface, and the control of the frequency and volume of gas charging and discharging can realize the control of the massage frequency and pressing force; adjusting the fixed position of the actuator relative to the arm can realize the massage of different parts of the arm . In addition, the inflation and deflation control of different rigid pressing heads can realize adjustable massage of the pressing parts, and the rigid pressing heads are beneficial to ensure the directionality and rigidity of the flexible film. The invention is especially suitable for the massage of acupoints, and the flexible film protruding from the points can be used to adjust the acupoints by adjusting the position and rotation as a whole.

Below in conjunction with accompanying drawing and embodiment, technical scheme of the present invention is further described:

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is the front view of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A in FIG. 2 .

Detailed ways

Referring to FIGS. 1-3 , a flexible rehabilitation actuator in this embodiment includes an annular casing 1 , a flexible membrane 5 and a rigid pressing head 2 ; a plurality of rigid pressing heads 2 are formed on the inner wall of the annular casing 1 along the circumferential direction. , each rigid pressing head 2 is a hollow structure, the end of each pressing head 2 is fixed with a flexible film 5, the flexible film 5, the hollow pressing head 2 and the annular casing 1 form an air storage chamber 4, and the annular casing 1 The air hole interface 3 communicated with the air storage chamber 4 is processed.

The gas is injected into or extracted from the gas storage chamber through the air hole interface, and the control of the frequency and volume of gas charging and discharging can realize the control of the massage frequency and pressing force; adjusting the fixed position of the actuator relative to the arm can realize the massage of different parts of the arm . In addition, the inflation and deflation control for different pressing heads can realize a massage mode with adjustable pressing parts, and the rigid pressing head is beneficial to ensure the directionality and rigidity of the flexible film. The actuator of this embodiment is particularly suitable for massaging acupuncture points. The flexible membrane protruding from the points can be used for the points, and the targeted points can be adjusted by adjusting the position and rotation as a whole. The diameter of the annular housing 1 can be designed according to the thickness of the arms of different patients and the placement site.

The flexible film 5 is subjected to the interaction between the air storage chamber 4 and the external air pressure to perform a contraction and expansion movement. When the air pressure in the air storage chamber 4 is greater than the external air pressure, the flexible film 5 expands outward and presses the arm; when the air pressure in the air storage chamber 4 is low Under the external air pressure, the flexible membrane 5 contracts inwardly, releasing the force of pressing the arm. By controlling the frequency of charging and discharging gas and the amount of gas, the massage frequency and pressing force can be controlled. By adjusting the fixed position of the actuator relative to the arm, different parts of the arm can be massaged. The inflation and deflation control for different pressing heads can realize the adjustable massage mode of the pressing part.

Optionally, the plurality of rigid pressing heads 2 are evenly arranged in the circumferential direction. As shown in Fig. 3, the preferred number is six. Usually, massage needs to focus on acupuncture points in clinical practice. The size of the acupoints is about 1.5cm ² . This kind of membrane that protrudes from the points can be used to target the points. By adjusting the position and rotation as a whole, the targeted points can be adjusted. When applied to acupoint massage, when an acupoint is massaged, the tympanic membranes on both sides of it do not work, and the three rigid pressing heads 2 on the opposite side work and play a supporting role.

Optionally, the material of the flexible membrane 5 is rubber. Adopting the design scheme of rigid pressing head 2 and flexible membrane 5, under the support of rigid pressing head 2, when the flexible membrane 5 massages the acupoints, the flexible membrane 5 will not shift and maintain a certain orientation and rigidity.

Optionally, the annular housing 1 is a circular housing. The round shell is more suitable for the human arm, which is convenient for position adjustment.

Optionally, the initial state of the flexible film 5 is an arc surface that is convex outward or concave inward. Initially, there is no air pressure in the air storage chamber 4. Naturally, due to the accumulation of area, the flexible membrane 5 will appear outwardly convex or inwardly concave.

The present invention has been disclosed above with preferred embodiments, but it is not intended to limit the present invention. Any person skilled in the art, without departing from the scope of the technical solution of the present invention, can use the structure and technical content disclosed above to make some The modifications or modifications of the above are equivalent implementation cases of equivalent changes, which still fall within the scope of the technical solution of the present invention.

Claims (5)

1. A flexible rehabilitation actuator, characterized in that: it comprises an annular casing (1), a flexible membrane (5) and a rigid pressing head (2); the inner wall surface of the annular casing (1) is provided with a plurality of rigid A pressing head (2), each rigid pressing head (2) is a hollow structure, and the end of each rigid pressing head (2) is fixedly connected with a flexible film (5), the flexible film (5), the rigid pressing head (2) An air storage chamber (4) is formed with the annular casing (1), and an air hole interface (3) communicated with the air storage chamber (4) is processed on the annular casing (1). 2 . The flexible rehabilitation actuator according to claim 1 , characterized in that: a plurality of the rigid pressing heads ( 2 ) are evenly arranged along the circumferential direction. 3 . 3. A flexible rehabilitation actuator according to claim 2, characterized in that: the material of the flexible membrane (5) is rubber. 4. A flexible rehabilitation actuator according to claim 3, characterized in that: the annular casing (1) is a circular casing. 5 . The flexible rehabilitation actuator according to claim 4 , wherein the initial state of the flexible film ( 5 ) is an arc surface that is convex or concave. 6 .

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