Artificial limb power twister for leg connection

Abstract

The utility model relates to the technical field of prostheses, and discloses an artificial limb power twister for leg connection, which comprises a power twister main body and a mounting block, two transmission slide blocks can be driven to get close to each other by rotating a transmission gear, so that connection insertion blocks on the two transmission slide blocks are retracted into a transmission cavity, and the power twister main body is connected with the mounting block. At the moment, a rotating rod can be inserted into a rotating groove in the power twister main body, after the rotating rod is completely inserted, connecting holes in annular sliding blocks and connecting inserting blocks are located on the same horizontal axis, and at the moment, a transmission gear can be reversely rotated, so that the two transmission sliding blocks drive the two connecting inserting blocks to be away from each other and inserted into the connecting holes in the two annular sliding blocks; and the two annular sliding blocks can be driven by the rotating rod to slide in the annular sliding grooves, meanwhile, the arc-shaped pushing block is driven by the arc-shaped connecting rod to slide in the sealing cavity, gas in the sealing cavity is extruded, and the arc-shaped pushing block can be automatically reset through air pressure.

Description

TECHNICAL FIELD

[0001] The utility model relates to artificial limb technical field, concretely is a leg connecting artificial limb torsion ware. BACKGROUND

[0002] Artificial limb, also known as "prosthetic limb", is a prosthetic limb used to compensate for the function of the missing limb, and there are upper limb artificial limb and lower limb artificial limb. It is made of aluminum plate, wood, leather, plastic and other materials, and its joint adopts metal parts. The mainstream of the artificial limb industry is titanium alloy and carbon fiber material. Prosthetic limb refers to a prosthetic limb used to replace the dysfunction (whether temporary or permanent) of the limb or to conceal the disability of the limb. The lower limb artificial limb is installed between the parts above the foot and below the knee, usually in the leg tube. When wearing a lower limb artificial limb, people will encounter a small turning problem, such as when doing a turning action, the ankle joint of the lower leg actually needs to turn, but since the current lower limb artificial limb assembly is mostly hard connected, its leg tube is a metal structure, only the knee joint can make a bending leg action, or some ankle joints can make forward and backward or left and right turning. When a person wants to make a small turning action, the foot of the artificial limb must be off the ground, so that the action of the human body is limited to a certain extent.

[0003] Publication No. CN219250565U discloses a leg connecting artificial limb torsion ware, which comprises a torsion ware main body, a rotating groove, a rotating rod, a gear ring, a torsion cavity, a gear plate, a push rod, a rotating rod and a push plate, the front end of the push plate is connected with the inner wall of the rotating rod through a telescopic rod, a rotating spring is sleeved on the telescopic rod, torsion blocks are fixedly connected to the upper and lower ends of the rotating rod, a torsion groove for cooperating with the torsion blocks is formed in one side of the rear end of the gear ring, a clamping mechanism is arranged at the rear end of the gear ring, a control mechanism for cooperating with the clamping mechanism is arranged at the rear end of the torsion ware main body, a rotating auxiliary mechanism for cooperating with the rotating rod is arranged at the bottom of the rotating groove, a guide mechanism for cooperating with the gear plate is arranged at one side of the rear end of the rotating groove, and an installation plate is fixedly connected to the top end of the rotating rod.

[0004] However, the rotating rod and the torsion ware main body in the device are not convenient to disassemble and maintain, and it is not convenient to repair when the internal parts are damaged. UTILITY MODEL CONTENTS

[0005] (I) Technical problems solved

[0006] In view of the defects of the prior art, the utility model provides a leg connecting artificial limb torsion ware, which solves the above technical problems.

[0007] (II) Technical scheme

[0008] In order to achieve the above object, the utility model provides the following technical scheme: a leg connecting artificial limb torsion ware, including torsion ware main part and mounting block, the torsion ware is opened with rotation groove, the mounting block is provided with rotating lever, rotating lever rotation is installed in rotation groove, the inner wall of rotation groove is opened with two annular slide grooves which are arranged along the circumferential direction interval, the annular slide groove is slidably arranged with annular slide block, the inner wall of one side of annular slide groove is opened with sealed cavity, the sealed cavity is slidably arranged with arc push, and the arc push is connected with annular slide block through arc connecting rod, the rotating lever is opened with transmission cavity, and the transmission gear wheel is rotationally installed in transmission cavity, and two transmission slide blocks are arranged in transmission cavity, the tooth slot that is adapted with transmission gear wheel is opened in two transmission slide blocks, and the connecting plug that extends to outside and penetrates transmission cavity is protruded on two transmission slide blocks, and the connecting hole that is adapted with connecting plug is opened in two annular slide blocks.

[0009] Preferably, the arc-shaped push block is provided with a rubber plug at an end away from the arc-shaped connecting rod.

[0010] Preferably, the transmission cavity is arranged with two fixing blocks, the fixing block is protruded with a sliding rod, the sliding hole is opened in two transmission slide blocks, and two transmission slide blocks are slidably arranged on two sliding rods through the sliding hole.

[0011] Preferably, the sliding rod is sleeved with a compression spring, one end of the compression spring is abutted on the fixing block, and the other end of the compression spring is abutted on the transmission slide block.

[0012] Preferably, the transmission gear wheel is protruded with a connecting shaft extending to the outside, and the adjusting block is arranged at an end of the connecting shaft away from the transmission gear wheel.

[0013] Preferably, the adjusting block is opened with an internal hexagonal slot.

[0014] Preferably, the torsion ware main part is arranged with two air pressure valves, and the two air pressure valves are connected with two sealed cavities respectively.

[0015] Compared with the prior art, the utility model provides a kind of leg connecting artificial limb torsion ware, with the following beneficial effects:

[0016] The utility model discloses a transmission gear, transmission sliding block, connecting plug block and annular sliding block etc. Structure's mutual cooperation is set up, thereby can when connecting torsion ware main part and rotating rod, can drive two transmission sliding blocks to be close to each other through rotating transmission gear, make the connecting plug block on two transmission sliding blocks retract into transmission cavity, at this moment can be inserted into the rotating groove in torsion ware main part, after complete insertion, the connecting hole on annular sliding block and connecting plug block are on the same horizontal axis, at this moment can reverse rotation transmission gear, thereby make two transmission sliding blocks drive two connecting plug blocks to be far from each other and insert into the connecting hole on two annular sliding blocks, thereby complete the connection locking between torsion ware main part and rotating rod, and can drive two annular sliding blocks to slide in annular sliding groove through rotating rod, simultaneously drive arc pusher to slide in sealing cavity through arc connecting rod, and extrude the gas in sealing cavity, and through the air pressure, the arc pusher can be reset automatically. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the main body structure schematic diagram of the utility model;

[0018] Figure 2 It is the overhead sectional structure schematic diagram of transmission sliding block, transmission gear and sliding rod etc. Structure of the utility model;

[0019] Figure 3 It is the side view sectional schematic diagram of connecting axle, sliding rod and rotating rod etc. Structure of the utility model;

[0020] Figure 4 It is the Figure 2 It is the structure enlarged schematic diagram of A place in the utility model.

[0021] Among them: 1, torsion ware main part;2, mounting block;3, air pressure valve;4, annular sliding groove;5, annular sliding block;6, arc connecting rod;7, transmission cavity;8, transmission sliding block;9, connecting plug block;10, sliding hole;11, connecting hole;12, transmission gear;13, fixed block;14, sliding rod;15, compression spring;16, tooth slot;17, rotating groove;18, rotating rod;19, connecting axle;20, adjusting block;21, internal hexagonal slot;22, sealing cavity;23, rubber plug;24, arc pusher. DETAILED DESCRIPTION

[0022] The embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0023] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two;The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Please refer to Figures 1-4 A kind of prosthetic leg connecting artificial limb torsion ware, including torsion ware main body 1 and mounting block 2, torsion ware is opened in rotation slot 17, mounting block 2 is protruding with rotating rod 18, rotating rod 18 is rotationally installed in rotation slot 17, the inner wall of rotation slot 17 is opened with two annular sliding grooves 4 arranged in circumferential direction, annular sliding block 5 is slidably arranged in annular sliding groove 4, annular sliding groove 4 one side inner wall is opened with sealed cavity 22, arc-shaped push block 24 is slidably arranged in sealed cavity 22, arc-shaped push block 24 is connected with annular sliding block 5 by arc-shaped connecting rod 6, transmission cavity 7 is opened in rotating rod 18, transmission gear 12 is rotationally installed in transmission cavity 7, two transmission sliding blocks 8 are arranged in transmission cavity 7, the tooth groove 16 compatible with transmission gear 12 is opened in the two transmission sliding blocks 8, the connecting plug block 9 that penetrates transmission cavity 7 and extends to outside is protruding on the two transmission sliding blocks 8, connecting hole 11 compatible with connecting plug block 9 is opened in the two annular sliding blocks 5.

[0026] The transmission gear 12, the transmission sliding block 8, the connecting plug 9 and the annular sliding block 5 are matched with each other, so that when the torsion ware body 1 is connected with the rotating rod 18, the transmission gear 12 is rotated to drive the two transmission sliding blocks 8 to move close to each other, so that the two connecting plugs 9 on the two transmission sliding blocks 8 are retracted into the transmission cavity 7, at this time, the rotating rod 18 can be inserted into the rotating groove 17 in the torsion ware body 1, after complete insertion, the connecting hole 11 on the annular sliding block 5 is on the same horizontal axis as the connecting plug 9, at this time, the transmission gear 12 is reversely rotated, so that the two transmission sliding blocks 8 drive the two connecting plugs 9 to move away from each other and are inserted into the connecting hole 11 on the two annular sliding blocks 5, so that the connection and locking between the torsion ware body 1 and the rotating rod 18 are completed, and the rotating rod 18 drives the two annular sliding blocks 5 to slide in the annular sliding groove 4, at the same time, the arc-shaped connecting rod 6 drives the arc-shaped push block 24 to slide in the sealing cavity 22, the gas in the sealing cavity 22 is extruded, and the arc-shaped push block 24 can be automatically reset through the gas pressure.

[0027] Specifically, in the embodiment, the end of the arc-shaped push block 24 away from the arc-shaped connecting rod 6 is provided with a rubber plug 23.

[0028] The rubber plug 23 can improve the sealing between the arc-shaped push block 24 and the inner wall of the sealing cavity 22.

[0029] Specifically, in the embodiment, two fixed blocks 13 are arranged in the transmission cavity 7, the fixed blocks 13 are provided with sliding rods 14, the two transmission sliding blocks 8 are respectively slidably arranged on the two sliding rods 14 through the sliding holes 10 on the two transmission sliding blocks 8, the sliding rods 14 are sleeved with compression springs 15, one end of the compression springs 15 abuts against the fixed blocks 13, and the other end of the compression springs 15 abuts against the transmission sliding blocks 8.

[0030] The sliding rods 14 can guide the moving direction of the two transmission sliding blocks 8, and make the moving process of the two transmission sliding blocks 8 more smooth, and the compression springs 15 can keep the two transmission sliding blocks 8 away from each other, so that the two connecting plugs 9 can always abut against the connecting hole 11, and the stability of the connection between the torsion ware body 1 and the rotating rod 18 is ensured.

[0031] Specifically, in the embodiment, the transmission gear 12 is provided with a connecting shaft 19 extending to the outside, the end of the connecting shaft 19 away from the transmission gear 12 is provided with an adjusting block 20, and the adjusting block 20 is provided with an internal hexagonal slot 21.

[0032] An external hexagonal wrench can be inserted into the internal hexagonal slot 21 on the adjusting block 20, and the transmission gear 12 can be rotated through the connecting shaft 19.

[0033] Specifically, in the embodiment, two air pressure valves 3 are arranged on the torque wrench body 1, and the two air pressure valves 3 are connected with two sealing cavities 22 respectively, so that the air pressure in the two sealing cavities 22 can be adjusted.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A prosthetic knee joint torque unit comprising a torque unit body and a mounting block, characterized in that: The torsion ware is provided with a rotating groove, a rotating rod is protruded on the mounting block, the rotating rod is rotatably installed in the rotating groove, two annular sliding grooves are arranged on the inner wall of the rotating groove in the circumferential direction, an annular sliding block is slidably arranged in the annular sliding groove, a sealing cavity is formed on one side of the inner wall of the annular sliding groove, an arc-shaped push block is slidably arranged in the sealing cavity, the arc-shaped push block is connected with the annular sliding block through an arc-shaped connecting rod, a transmission cavity is formed on the rotating rod, a transmission gear is rotatably installed in the transmission cavity, two transmission sliding blocks are arranged in the transmission cavity, a tooth groove matched with the transmission gear is formed on each of the two transmission sliding blocks, a connecting plug penetrating through the transmission cavity and extending to the outside is protruded on each of the two transmission sliding blocks, and a connecting hole matched with the connecting plug is formed on each of the two annular sliding blocks.

2. A prosthetic knee unit according to claim 1, characterized in that: The arc-shaped push block is provided with a rubber plug at the end away from the arc-shaped connecting rod.

3. A prosthetic knee unit according to claim 1, characterized in that: Two fixing blocks are arranged in the transmission cavity, a sliding rod is protruded on the fixing block, a sliding hole is formed on each of the two transmission sliding blocks, and the two transmission sliding blocks are slidably arranged on the two sliding rods through the sliding holes.

4. A prosthetic knee unit according to claim 3, wherein: A compression spring is sleeved on the sliding rod, one end of the compression spring is abutted against the fixing block, and the other end of the compression spring is abutted against the transmission sliding block.

5. A prosthetic knee unit according to claim 1, wherein: A connecting shaft extending to the outside is protruded on the transmission gear, and an adjusting block is arranged at the end of the connecting shaft away from the transmission gear.

6. A prosthetic knee unit according to claim 5, wherein: An inner hexagonal slot is formed on the adjusting block.

7. A prosthetic knee unit according to claim 1, wherein: Two air pressure valves are arranged on the torsion ware body, and the two air pressure valves are connected with the two sealing cavities respectively.

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