A flexible wire driven force transfer device that converts tension to torque

Abstract

The application discloses a flexible wire driving force transmission device for converting tension into torque, relates to the technical field of flexible wire driving, and comprises two upper fixing members and two lower fixing members, wherein the two upper fixing members and the two lower fixing members are connected through a cross buckle and a cable tie, a plurality of sliding grooves are arranged on the outer sides of the upper fixing members and the lower fixing members, a rebound assembly is installed on the sliding grooves on one side, and a pulling assembly is installed on the sliding grooves on the other side. The application adopts a flexible structure, has small action resistance, small injury, uniform pressure, is particularly suitable for human interactive movement, has light weight, simple structure, convenient installation, large torque and fast response, enables patients to achieve better rehabilitation effect, and further, the structural unit is simple, can realize modularization and batch production and manufacturing, and is low in cost.

Description

Technical Field

[0001] This invention relates to the field of flexible filament drive technology, and more particularly to a force transmission device for converting tension into torque in flexible filament drive. Background Technology

[0002] Typical mechanisms for converting tension into torque, such as connecting rods or cranks, are rigid structures that use hinge coupling between rotation and linear motion to achieve the conversion of tension into torque. However, for flexible drive mechanisms, such as lead wheels or pulleys, flexible wires or belts are usually fixed on a rotating disk, making it impossible to avoid specific rotation points.

[0003] Developing a flexible wire-driven force transmission device that converts tension into torque and can avoid specific areas, particularly suitable for wearable devices to avoid injured areas or other applications requiring avoidance of specific locations, while maintaining low operating costs, has become a pressing technical challenge for those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a force transmission device that converts tension into torque driven by a flexible wire, thereby solving the problems listed in the background art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] The present invention discloses a force transmission device for converting tension into torque driven by flexible wire, comprising two upper fixing members and two lower fixing members. The two upper fixing members and the two lower fixing members are connected by a D-ring and a cable tie. Multiple sliding grooves are provided on the outer surfaces of the upper fixing members and the lower fixing members. A spring-loaded component is installed on one side of the sliding groove, and a pulling component is installed on the other side of the sliding groove.

[0007] Preferably, the upper fixing member and the lower fixing member are semi-circular in shape, and the upper fixing member and the lower fixing member are divided into an outer layer and an inner layer. The outer layer is made of a rigid material, the inner layer is made of a flexible material, and the outer layer and the inner layer are bonded together.

[0008] Preferably, the rigid material is plastic or metal, and the flexible material is memory foam, foam, or rubber.

[0009] Preferably, the rebound assembly includes a screw, a guide tube, a nut, a spring, a first slider, a first flexible wire, a guide slider, a first set bolt, and a first fixing cap. Two first sliders and one guide slider are fixedly installed on one side of the slide groove by the first set bolt, and the guide slider is located in the middle of the two first sliders. The bottom end of the first flexible wire is fixedly connected to the first fixing cap, and the top end of the first flexible wire passes through the two first sliders and the guide slider in sequence. The top end of the first flexible wire is connected to the screw. The spring is sleeved on the screw, and the nut is installed on the screw. The guide tube is fixedly installed on the upper surface of the nut.

[0010] Preferably, the guide slider is provided with two guide wheels, and the first flexible wire passes through the middle of the two guide wheels.

[0011] Preferably, the traction assembly includes a through-hole jack, a second flexible wire, a chain, a second set bolt, a second slider, and a second fixing cap. Four second sliders are fixedly installed on one side of the slide groove by the second set bolt. The through-hole jack is fixedly installed on two of the second sliders. The chain is installed between the opposite faces of the other two second sliders. The second fixing cap is fixedly installed at the bottom end of the second flexible wire. The top end of the second flexible wire passes through the chain and the through-hole jack in sequence. The working end of the through-hole jack is fixedly connected to the second flexible wire.

[0012] Preferably, the through-hole jack is connected to the rubber ball via an air tube.

[0013] Preferably, the chain is composed of multiple links, each link including a mounting plate, an upper sleeve, a shaft, a guide block, and a lower sleeve. The upper and lower sleeves are respectively mounted on the upper and lower ends of the mounting plate, and the upper and lower sleeves cooperate with each other. The upper and lower sleeves are connected by the shaft. The mounting plate is provided with multiple mounting holes at equal intervals, and the guide block is fixedly connected to the mounting holes by bolts.

[0014] Preferably, the mounting plate is in the shape of a trapezoidal boss.

[0015] Preferably, the through-hole jack is driven by a telescopic airbag.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0017] This invention employs a flexible structure, which minimizes movement resistance, causes minimal damage, and provides uniform pressure, making it particularly suitable for human interactive movements. It is lightweight, easy to install, has high torque, and responds quickly, enabling patients to achieve better rehabilitation results. Furthermore, its simple structural units allow for modular and mass production, resulting in low costs. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of a force transmission device for converting tension into torque driven by a flexible wire according to the present invention.

[0020] Figure 2 This is a schematic diagram of the southwest isometric side of a force transmission device for converting tension into torque driven by a flexible wire according to the present invention (without rubber ball);

[0021] Figure 3 This is a schematic diagram of the northeast isometric side of a force transmission device for converting tension into torque driven by a flexible wire according to the present invention (without rubber ball);

[0022] Figure 4 This is a side view (without rubber ball) of a force transmission device for converting tension into torque driven by a flexible wire according to the present invention.

[0023] Figure 5 This is a schematic diagram of a link in the present invention.

[0024] Explanation of reference numerals in the attached drawings: 1. Upper fixing component; 2. Rebound assembly; 201. Screw; 202. Guide tube; 203. Nut; 204. Spring; 205. First slider; 206. First flexible wire; 207. Guide slider; 208. First set bolt; 209. First fixing cap; 3. Slide groove; 4. Lower fixing component; 5. Pulling assembly; 501. Through-hole jack; 502. Second flexible wire; 503. Chain; 504. Second set bolt; 505. Second slider; 506. Second fixing cap; 6. Rubber ball; 5031. Mounting plate; 5032. Upper sleeve; 5033. Shaft; 5034. Guide block; 5035. Lower sleeve. Detailed Implementation

[0025] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] like Figure 1-5As shown, a force transmission device for converting tension into torque driven by flexible wire includes two upper fixing members 1 and two lower fixing members 4. The two upper fixing members 1 and the two lower fixing members 4 are connected by D-rings and cable ties. Multiple sliding grooves 3 are provided on the outer surfaces of the upper fixing members 1 and the lower fixing members 4. A rebound component 2 is installed on one side of the sliding groove 3, and a traction component 5 is installed on the other side of the sliding groove 3. The upper fixing members are fixed at the thigh, and the lower fixing members are fixed at the calf. The rebound component is installed on the side near the knee, and the traction component is installed on the side near the popliteal fossa. The traction component can drive the calf to complete the lifting operation, and the rebound component can drive the calf to return to its original position.

[0027] Specifically, the upper fixing member 1 and the lower fixing member 4 are semi-circular in shape. The upper fixing member 1 and the lower fixing member 4 are divided into an outer layer and an inner layer. The outer layer is made of a rigid material, and the inner layer is made of a flexible material. The outer layer and the inner layer are bonded together.

[0028] Specifically, the rigid material is plastic or metal, with plastic being preferred. The outer layer is integrally injection molded with the groove, which is convenient for production and has low production costs. The flexible material is memory foam, foam or rubber, with memory foam being preferred, which can provide good flexible support for the wearer's legs.

[0029] like Figure 4 As shown, the rebound assembly 2 includes a screw 201, a guide tube 202, a nut 203, a spring 204, a first slider 205, a first flexible wire 206, a guide slider 207, a first set bolt 208, and a first fixing cap 209. Two first sliders 205 and one guide slider 207 are fixedly installed on one side of the slide groove 3 via the first set bolt 208, with the guide slider 207 located in the middle of the two first sliders 205. The bottom end of the first flexible wire 206 is fixedly connected to the first fixing cap 209, and the top end of the first flexible wire 206 is attached to... The first flexible wire 206 passes through two first sliders 205 and one guide slider 207. The top end of the first flexible wire 206 is connected to the screw 201. The spring 204 is sleeved on the screw 201. The nut 203 is installed on the screw 201. The guide tube 202 is fixedly installed on the upper surface of the nut 203. According to the wearer's own situation, multiple rebound components can be installed on the slide groove. The wearer can adjust the elasticity of a single rebound component by adjusting the nut to move up and down on the screw, so that the elastic range of the rebound component is wider and the adaptability is stronger.

[0030] Specifically, the guide slider 207 is provided with two guide wheels, and the first flexible wire 206 passes through the middle of the two guide wheels. The first flexible wire passes through the two guide wheels, which can not only achieve the guiding function, but also prevent the first flexible wire from affecting the rebound efficiency due to frictional resistance during bending.

[0031] like Figure 4 As shown, the traction assembly 5 includes a through-hole jack 501, a second flexible wire 502, a chain 503, a second set bolt 504, a second slider 505, and a second fixing cap 506. Four second sliders 505 are fixedly installed on the slide groove 3 on one side by the second set bolt 504. The through-hole jack 501 is fixedly installed on two of the second sliders 505. The chain 503 is installed between the opposite faces of the other two second sliders 505. The second fixing cap 506 is fixedly installed at the bottom end of the second flexible wire 502. The top end of the second flexible wire 502 passes through the chain 503 and the through-hole jack 501 in sequence. The working end of the through-hole jack 501 is fixedly connected to the second flexible wire 502.

[0032] Specifically, the through-hole jack 501 is connected to the rubber ball 6 through an air tube, and the through-hole jack 501 is driven by a telescopic airbag.

[0033] During operation, the wearer can add a traction device to the slide according to their own condition. By inflating the telescopic airbag inside the through-hole jack 501 through the rubber ball 6, the telescopic airbag extends, lifting the working end of the through-hole jack 501 upwards. At the same time, it drives the second flexible wire to move upwards, causing the chain to bend synchronously, thus achieving the traction operation on the lower leg. The wearer can manually control the amount of air supplied to the telescopic airbag inside the through-hole jack by the rubber ball, thereby controlling the degree of lower leg stretching. It is safe, reliable, and highly controllable. While exercising the legs, it can also exercise the hand strength simultaneously, and it does not require an external power source for driving, making it energy-saving and environmentally friendly.

[0034] like Figure 5 As shown, the chain 503 is composed of multiple links, each link including a mounting plate 5031, an upper sleeve 5032, a shaft 5033, a guide block 5034, and a lower sleeve 5035. The upper sleeve 5032 and the lower sleeve 5035 are respectively mounted on the upper and lower ends of the mounting plate 5031. The upper sleeve 5032 and the lower sleeve 5035 cooperate with each other and are connected by the shaft 5033. The mounting plate 5031 has multiple mounting holes at equal intervals. The guide block 5034 is fixedly connected to the mounting holes by bolts. The wearer can add and remove links at will according to their own actual situation due to the modular design. The mounting plate has multiple mounting holes, which allows the guide block to be adjusted on the mounting plate.

[0035] Specifically, the mounting plate 5031 is a trapezoidal boss, which can limit the rotation angle of the chain, so that the chain can only rotate to one side, thus ensuring the accuracy of the force transmission of the second flexible wire.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A force transmission device for converting tension into torque driven by a flexible wire, comprising two upper fixing members (1) and two lower fixing members (4), characterized in that: The two upper fixing parts (1) and the two lower fixing parts (4) are connected by a D-ring and a cable tie. Multiple grooves (3) are provided on the outer side of the upper fixing parts (1) and the lower fixing parts (4). A spring-loaded component (2) is installed on one side of the groove (3), and a pulling component (5) is installed on the other side of the groove (3). The rebound assembly (2) includes a screw (201), a guide tube (202), a nut (203), a spring (204), a first slider (205), a first flexible wire (206), a guide slider (207), a first set bolt (208), and a first fixing cap (209). Two first sliders (205) and one guide slider (207) are fixedly installed on one side of the slide groove (3) by the first set bolt (208), and the guide slider (207) is located in the middle of the two first sliders (205). At the intermediate position, the bottom end of the first flexible wire (206) is fixedly connected to the first fixing cap (209), the top end of the first flexible wire (206) passes through the two first sliders (205) and the guide slider (207) in sequence, the top end of the first flexible wire (206) is connected to the screw (201), the spring (204) is sleeved on the screw (201), the nut (203) is installed on the screw (201), and the guide tube (202) is fixedly installed on the upper surface of the nut (203).

2. The force transmission device for converting tension into torque driven by a flexible wire according to claim 1, characterized in that: The upper fixing member (1) and the lower fixing member (4) are semi-circular in shape. The upper fixing member (1) and the lower fixing member (4) are divided into an outer layer and an inner layer. The outer layer is made of a rigid material, and the inner layer is made of a flexible material. The outer layer and the inner layer are bonded together.

3. The force transmission device for converting tension into torque driven by a flexible wire according to claim 2, characterized in that: The rigid material is plastic or metal, and the flexible material is memory foam, foam, or rubber.

4. The force transmission device for converting tension into torque driven by a flexible wire according to claim 3, characterized in that: The guide slider (207) is provided with two guide wheels, and the first flexible wire (206) passes through the middle of the two guide wheels.

5. The force transmission device for converting tension into torque driven by a flexible wire according to claim 4, characterized in that: The traction assembly (5) includes a through-hole jack (501), a second flexible wire (502), a chain (503), a second set bolt (504), a second slider (505), and a second fixing cap (506). Four second sliders (505) are fixedly installed on the slide groove (3) on one side by the second set bolt (504). The through-hole jack (501) is fixedly installed on two of the second sliders (505). The chain (503) is installed between the opposite faces of the other two second sliders (505). The second fixing cap (506) is fixedly installed at the bottom end of the second flexible wire (502). The top end of the second flexible wire (502) passes through the chain (503) and the through-hole jack (501) in sequence. The working end of the through-hole jack (501) is fixedly connected to the second flexible wire (502).

6. The force transmission device for converting tension into torque driven by a flexible wire according to claim 5, characterized in that: The through-hole jack (501) is connected to the rubber ball (6) through an air tube.

7. The force transmission device for converting tension into torque driven by a flexible wire according to claim 6, characterized in that: The chain (503) is composed of multiple links, each link including a mounting plate (5031), an upper sleeve (5032), a shaft (5033), a guide block (5034), and a lower sleeve (5035). The upper sleeve (5032) and the lower sleeve (5035) are respectively mounted on the upper and lower ends of the mounting plate (5031). The upper sleeve (5032) and the lower sleeve (5035) cooperate with each other and are connected by the shaft (5033). The mounting plate (5031) has multiple mounting holes at equal intervals, and the guide block (5034) is fixedly connected to the mounting holes by bolts.

8. The force transmission device for converting tension into torque driven by a flexible wire according to claim 7, characterized in that: The mounting plate (5031) is in the shape of a trapezoidal boss.

9. A force transmission device for converting tension into torque driven by a flexible wire according to claim 8, characterized in that: The through-hole jack (501) is driven by a telescopic airbag.

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