CN217286200U

CN217286200U - Novel helping hand knee joint assembly

Info

Publication number: CN217286200U
Application number: CN202220621105.9U
Authority: CN
Inventors: 李晓刚
Original assignee: Zhengzhou Pinkang Artificial Limb Orthosis Technology Co ltd
Current assignee: Zhengzhou Pinkang Artificial Limb Orthosis Technology Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-08-26
Anticipated expiration: 2032-03-22

Abstract

The utility model provides a novel power-assisted knee joint assembly, which comprises a driving component, a supporting leg arm and a knee joint component, wherein the driving component comprises a driving cylinder and a driving piston rod arranged in the driving cylinder; the supporting leg arm is a U-shaped channel steel, and the bottom end of the driving cylinder is hinged in the U-shaped channel steel; the knee joint component comprises a joint support, and the lower part of the front end of the joint support is provided with a sliding joint; the bottom end of the sliding joint is hinged with a U-shaped groove opening at the upper end of the U-shaped channel steel; a hinged support is arranged on the rear side of the bottom of the joint support, a driving connecting rod is hinged at the rear end of the hinged support, and the free end of the driving connecting rod is hinged with the top end of the driving piston rod; the drive piston rod drives the joint support and the sliding joint to rotate along the supporting leg arm. The utility model discloses knee joint assembly, the auxiliary drive subassembly that sets up with the cooperation of joint support can be favorable to playing supplementary auto-lock effect at knee joint assembly in the use, reduces the use degree of difficulty of knee joint assembly, improves the use convenience of knee joint assembly.

Description

Novel helping hand knee joint assembly

Technical Field

The utility model relates to a lower limb artificial limb field, concretely relates to novel helping hand knee joint assembly.

Background

With the development of science and technology, the lower limb artificial limb replaces a crutch, which not only makes up the defects caused by limb defects in appearance and function, but also enables both hands of the amputee to freely participate in normal work and life, thereby expanding the depth and the breadth of the amputee participating in social activities.

The artificial limb joint is a core component of a thigh artificial limb, not only plays a role in supporting weight in the walking process, but also plays a decisive role in the performance of the artificial limb joint in the gait fidelity. The artificial limb knee joint can compensate the function of the human knee joint, perform flexion and extension and provide enough stability in the support period and control function in the swing period. If careful observation is carried out, when a human body wears the artificial limb and steps forward to the ground, the knee can be slightly bent forward, and at the moment, the artificial limb knee joint needs to form self-locking to ensure the stability of the human body.

The artificial knee joint in the prior art mainly forms self-locking on the knee joint through a mechanical structure, so that the artificial limb is more stable when standing, and does not need to be supported by means of external force. However, the artificial knee joint can only solve the problem of stability when the human body stands, and has poor self-locking stability when the knee is bent.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a novel helping hand knee joint assembly to solve the technical problem who exists among the background art.

In order to solve the technical problem, the utility model provides a novel helping hand knee joint assembly, include:

the driving assembly comprises a driving cylinder and a driving piston rod arranged in the driving cylinder;

the support leg arm is a U-shaped channel steel, and the bottom end of the driving cylinder is hinged in the U-shaped channel steel;

the knee joint component comprises a joint support, and the lower part of the front end of the joint support is provided with a sliding joint; the bottom end of the sliding joint is hinged with a U-shaped groove opening at the upper end of the U-shaped channel steel;

a hinged support is arranged on the rear side of the bottom of the joint support, a driving connecting rod is hinged to the rear end of the hinged support, and the free end of the driving connecting rod is hinged to the top end of the driving piston rod; the drive piston rod drives the joint support and the sliding joint to rotate along the supporting leg arm.

Preferably, the driving cylinder is a driving cylinder; the upper end and the lower end of the driving cylinder are provided with connecting ports, and the connecting ports are communicated with the air pump through air delivery rubber tubes.

Preferably, hinged side rods are distributed on two sides of the sliding joint, and two ends of each hinged side rod are respectively hinged with the sliding joint and the U-shaped channel steel.

Preferably, the two sides of the joint support are respectively provided with a guide connecting rod, the upper end of the guide connecting rod is hinged with the joint support, and the lower end of the guide connecting rod is in transmission connection with the driving connecting rod and the driving piston rod through a hinged shaft.

Preferably, a connecting seat is arranged at the top end of the joint support, and a connecting buckle is arranged on the connecting seat.

Preferably, U type channel steel both sides correspond with slip festival, actuating cylinder and are equipped with the hinge hole, and the hinge hole both sides correspond and are equipped with the reinforcing washer.

Preferably, the bottom end of the U-shaped channel steel is connected with a connecting end pipe, an opening is formed in one side of the connecting end pipe, fixing flanges are arranged on two sides, located on two sides of the opening, of the connecting end pipe, and the fixing flanges are fixedly connected through a connecting bolt assembly.

The above technical scheme of the utility model at least include following technological effect:

1. according to the knee joint assembly provided by the embodiment of the application, the auxiliary driving component matched with the joint support can be beneficial to playing an auxiliary self-locking role in the use process of the knee joint assembly, the use difficulty of the knee joint assembly is reduced, and the use convenience of the knee joint assembly is improved;

2. the driving assembly of the embodiment of the application can inject gas or exhaust gas into the upper cavity and the lower cavity of the piston in the driving cylinder respectively, so that the joint support can be driven conveniently, and the use difficulty of a user is reduced;

3. the hinged side rods and the guide connecting rods of the embodiment of the application are beneficial to improving the connection stability of the knee joint assembly;

4. the supporting leg arm of this application embodiment adopts U type groove steel construction to be favorable to strengthening the joint strength of slip festival and supporting leg arm, improves knee joint assembly life.

Drawings

FIG. 1 is a front view of a knee joint assembly according to an embodiment of the present application;

FIG. 2 is a right side view of a knee joint assembly of an embodiment of the present application;

FIG. 3 is a first perspective view of a knee assembly in accordance with an embodiment of the present application;

FIG. 4 is a second perspective view of a knee joint assembly in accordance with an embodiment of the present disclosure;

FIG. 5 is a third perspective view of a knee joint assembly in accordance with an embodiment of the present disclosure;

FIG. 6 is a perspective view of a supporting leg arm according to an embodiment of the present disclosure.

Reference numerals:

100. a knee joint assembly;

1. a drive assembly; 101. a drive cylinder; 102. a drive piston rod; 103. a gas transmission rubber tube; 104. an air pump;

2. a knee joint component; 201. a joint support; 202. a connecting seat; 203. a sliding joint; 204. hinging a side rod; 205. a guide link; 206. a hinged support; 207. a drive link;

3. a support leg arm; 301. u-shaped channel steel; 302. a U-shaped notch; 303. a reinforcing washer; 304. a hinge hole; 305. connecting end pipes; 306. and fixing the flanging.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 6 of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.

A novel power-assisted knee joint assembly comprises a driving component 1, wherein the driving component 1 comprises a driving cylinder 101 and a driving piston rod 102 arranged in the driving cylinder; the supporting leg arm 3 is a U-shaped channel steel 301, and the bottom end of the driving cylinder 101 is hinged in the U-shaped channel steel 301; the knee joint component 2 comprises a joint support 201, and a sliding joint 203 is arranged at the lower part of the front end of the joint support 201; the bottom end of the sliding joint 203 is hinged with a U-shaped notch 302 at the upper end of the U-shaped channel steel; a hinged support 206 is arranged at the rear side of the bottom of the joint support 201, a driving connecting rod 207 is hinged at the rear end of the hinged support 206, and the free end of the driving connecting rod 207 is hinged with the top end of the driving piston rod 102; the driving piston rod 102 drives the joint support 201 and the sliding joint 203 to rotate along the supporting leg arm.

As shown in fig. 1-2: a novel power-assisted knee joint assembly, wherein a knee joint assembly 100 comprises a driving component 1, the driving component 1 comprises a driving cylinder 101 and a driving piston rod 102 arranged in the driving cylinder; the supporting leg arm 3 is a U-shaped channel steel 301, the top end of the U-shaped channel steel is provided with a U-shaped channel opening 302, and the bottom end of the driving cylinder 101 is hinged in a U-shaped channel of the U-shaped channel steel 301; the knee joint component 2 comprises a joint support 201, the lower part of the front end of the joint support 201 is provided with a sliding joint 203, and the sliding joint is of an arc-shaped structure; the bottom end of the sliding joint 203 is hinged with a U-shaped notch 302 at the upper end of the U-shaped channel steel, and the sliding joint can rotate along the U-shaped channel steel through a hinged part; a hinged support 206 is arranged at the rear side of the bottom of the joint support 201, a driving connecting rod 207 is hinged at the rear end of the hinged support 206, and the free end of the driving connecting rod 207 is hinged with the top end of the driving piston rod 102; the driving piston rod 102 drives the joint support 201 and the sliding joint 203 to rotate along the supporting leg arm through the driving connecting rod. The knee joint assembly of this embodiment, the auxiliary drive subassembly through setting up with the joint support cooperation can be favorable to playing supplementary auto-lock effect at the knee joint assembly in the use, reduces the use degree of difficulty of knee joint assembly, improves the use convenience of knee joint assembly.

In an embodiment of the present application, as shown in fig. 1, the driving cylinder 101 is a driving cylinder; the upper end and the lower end of the driving cylinder are provided with connecting ports, and the connecting ports are communicated with an air pump 104 through an air delivery hose 103; the air pump can inject air or exhaust air to the upper cavity and the lower cavity of the piston in the driving cylinder respectively, so that the joint support can be driven conveniently, and the use difficulty of a user is reduced.

In an embodiment of the present application, as shown in fig. 3 to 5, hinge side bars 204 are distributed on both sides of the sliding joint 203, and both ends of the hinge side bars 204 are respectively hinged with the sliding joint 203 and a U-shaped channel steel 301; the hinged side lever is beneficial to improving the connection stability of the sliding joint and the supporting leg arm.

In an embodiment of the present application, as shown in fig. 3 to 5, guide links 205 are respectively disposed on two sides of the joint support 201, an upper end of each guide link 205 is hinged to the joint support 201, and a lower end of each guide link 205 is in transmission connection with the driving link 207 and the driving piston rod 102 through hinge shafts respectively; the guide connecting rod is beneficial to improving the connection stability of the joint support, the driving piston rod and the driving connecting rod.

In an embodiment of the present application, as shown in fig. 3-5, a connecting seat 202 is disposed at a top end of the joint support 201, and a connecting buckle is disposed on the connecting seat 202; the connecting buckle can be convenient for the residual limb accepting cavity to be fixedly connected, and the residual limb accepting cavity can be favorable for the fixed connection of the leg residual limb.

In an embodiment of the present application, as shown in fig. 6, hinge holes 304 are correspondingly formed on two sides of the U-shaped channel 301, corresponding to the sliding joint 203 and the driving cylinder 101, and reinforcing washers 303 are correspondingly formed on two sides of the hinge holes; the U type groove steel construction of this kind of setting is favorable to strengthening the joint strength of slip festival and supporting leg arm, improves knee joint assembly stability.

In an embodiment of the application, as shown in fig. 6, a connecting end pipe 305 is connected to the bottom end of the U-shaped channel steel 301, an opening is formed in one side of the connecting end pipe 305, fixing flanges 306 are arranged on two sides of the opening of the connecting end pipe 305, and the fixing flanges 306 are fixedly connected through a connecting bolt assembly; the connecting end pipe that the supporting leg arm bottom set up, the connecting end pipe can be convenient with foot mould subassembly fixed connection.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate medium, and may be used for communicating the inside of two elements or for interacting with each other, unless otherwise specifically defined, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to the specific circumstances.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A novel power-assisted knee joint assembly, comprising:

the device comprises a driving assembly (1), wherein the driving assembly (1) comprises a driving cylinder (101) and a driving piston rod (102) arranged in the driving cylinder;

the support leg arm (3) is a U-shaped channel steel (301), and the bottom end of the driving cylinder (101) is hinged in a groove of the U-shaped channel steel (301);

the knee joint component (2) comprises a joint support (201), and the lower part of the front end of the joint support (201) is provided with a sliding joint (203); the bottom end of the sliding joint (203) is hinged with a U-shaped notch (302) at the upper end of the U-shaped channel steel;

a hinged support (206) is arranged on the rear side of the bottom of the joint support (201), a driving connecting rod (207) is hinged to the rear end of the hinged support (206), and the free end of the driving connecting rod (207) is hinged to the top end of the driving piston rod (102); the driving piston rod (102) drives the joint support (201) and the sliding joint (203) to rotate along the supporting leg arm.

2. The novel power assisted knee joint assembly of claim 1, wherein: the driving cylinder (101) is a driving cylinder; the upper end and the lower end of the driving cylinder are provided with connecting ports, and the connecting ports are communicated with an air pump (104) through air delivery rubber tubes (103).

3. The novel power assisted knee joint assembly of claim 1, wherein: hinged side rods (204) are distributed on two sides of the sliding joint (203), and two ends of each hinged side rod (204) are hinged with the sliding joint (203) and the U-shaped channel steel (301) respectively.

4. The novel power assisted knee joint assembly of claim 3, wherein: the joint support is characterized in that guide connecting rods (205) are respectively arranged on two sides of the joint support (201), the upper ends of the guide connecting rods (205) are hinged with the joint support (201), and the lower ends of the guide connecting rods (205) are in transmission connection with the driving connecting rods (207) and the driving piston rods (102) through hinge shafts respectively.

5. The novel power assisted knee joint assembly of any one of claims 1-4, wherein: the joint support (201) is characterized in that a connecting seat (202) is arranged at the top end of the joint support, and a connecting buckle is arranged on the connecting seat (202).

6. The novel power assisted knee joint assembly of claim 1, wherein: u type channel-section steel (301) both sides correspond with slip festival (203), driving cylinder (101) and are equipped with the hinge hole, and the hinge hole both sides correspond and are equipped with reinforcing washer (303).

7. The novel power assisted knee joint assembly of claim 6, wherein: u type channel-section steel (301) bottom is connected with connecting end pipe (305), connecting end pipe (305) one side is equipped with the opening, connecting end pipe (305) are located the opening both sides and are equipped with fixed turn-ups (306), and fixed turn-ups (306) pass through connecting bolt subassembly fixed connection.