Single-shaft manual knee locking joint

Abstract

The utility model belongs to the field of single-shaft manual locking knee joints, and particularly relates to a single-shaft manual locking knee joint which comprises a knee joint main body, an upper connecting body is fixedly connected to the knee joint main body, the upper end of the upper connecting body is in contact with an installation piece, a connecting groove is formed in the upper connecting body, a connecting block is in contact with the interior of the connecting groove, and the lower end of the connecting block is connected with the installation piece. And the connecting block is fixedly connected with the mounting piece, a clamping groove is formed in the connecting block, and a sliding block is slidably connected into the clamping groove. By designing the clamping groove, the sliding block, the supporting ring, the sliding rod, the pull block, the pull ring and other components, the sliding block is pulled to move, after the sliding block moves to the designated position, the upper knee joint body, the upper connecting body, the sliding block and other components are moved to the designated position of the installation piece, then the sliding block moves into the clamping groove, and then the device is limited; and the device is convenient to install.

Description

Technical Field

[0001] This utility model relates to the field of single-axis manual knee joint locking technology, specifically a single-axis manual knee joint locking mechanism. Background Technology

[0002] A prosthesis is an artificial prosthesis specially designed, manufactured, and fitted using engineering techniques to compensate for amputees or those with incomplete limb loss. Also known as a "surgeon," its main function is to replace some of the functions of the lost limb. According to utility model patent CN2100878U, a dual-purpose prosthesis with adjustable resistance and locking mechanism for a single-axis knee joint is proposed. This design addresses the complex structure, limited function, and inconvenience of existing prosthetic knee joints. It employs an adjustable locking joint axis and a top block positioning and locking method, simultaneously providing adjustable resistance and locking functions. This makes the utility model simple in structure, multi-functional, easy to adjust, and adaptable to different patient requirements for the prosthetic knee joint. In existing technologies, external tools are required for installation, making installation inconvenient. Therefore, improvements to existing technologies are necessary. Utility Model Content

[0003] The purpose of this invention is to provide a single-axis manual knee locking joint, which solves the problem that when the device needs to be installed, external tools are required, making the device inconvenient to install.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a single-axis manual knee joint locking mechanism, comprising a knee joint body, an upper connecting body fixedly connected to the knee joint body, an upper end of the upper connecting body contacting an installation component, a connecting groove inside the upper connecting body, a connecting block inside the connecting groove contacting the connecting block, a connecting block fixedly connected to the installation component, a slot inside the connecting block, a slider slidably connected inside the slot, a support ring fixedly connected to the end of the slider away from the slot, a sliding rod fixedly connected to the side of the support ring away from the slider, a pull block fixedly connected to the end of the sliding rod away from the support ring, a spring provided on the outer side of the sliding rod, a guide rod slidably connected inside the support ring, the guide rod fixedly connected to the upper connecting body, the upper connecting body slidably connected to the slider, and the upper connecting body slidably connected to the sliding rod, with a limit mechanism provided inside the upper connecting body. By pulling the slider, after the slider moves to a designated position, the upper knee joint body, the upper connecting body, and the slider move to a designated position on the installation component, and then the slider moves into the slot, thereby limiting the device and facilitating installation.

[0005] Preferably, the outer side of the upper connecting body is in contact with a pull block, and a pull ring is fixedly connected to the side of the pull block away from the slide rod. By designing the pull ring, the slider can be moved.

[0006] Preferably, one end of the spring is fixedly connected to the support ring, and the other end of the spring is fixedly connected to the upper connecting body. By designing the spring, the support ring has an elastic force.

[0007] Preferably, the limiting mechanism includes a fixing block, which is fixedly connected to the outer side of the slide rod. The fixing block contacts the upper connecting body. A groove is formed inside the fixing block, and a locking block is slidably connected inside the groove. An elastic sponge is provided inside the upper connecting body, and the upper connecting body is slidably connected to the locking block. By moving the locking block to a designated position, when the fixing block and other components move to the designated position, the locking block moves into the groove, thereby limiting the slider and preventing the slider from loosening after prolonged use.

[0008] Preferably, the upper connecting body has a sliding groove inside, and a pull rod is slidably connected inside the sliding groove. By designing the pull rod, the locking block can be moved.

[0009] Preferably, a handle is fixedly connected to the pull rod, and the handle is slidably connected to the upper connecting body. By designing the handle, the pull rod can be moved.

[0010] Preferably, one end of the elastic sponge is fixedly connected to the card block, and the other end of the elastic sponge is fixedly connected to the upper connecting body. By designing the elastic sponge, the card block has an elastic effect.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model designs components such as a slot, slider, support ring, slide rod, pull block, and pull ring to move the slider. After the slider moves to the designated position, the upper knee joint body, upper connecting body, and slider are moved to the designated position of the mounting component. Then, the slider is moved into the slot, thereby limiting the device and making it easy to install.

[0013] 2. This utility model designs components such as a fixed block, a groove, a locking block, a sliding groove, a pull rod, and a handle. The locking block is moved to a designated position. After the fixed block and other components are moved to the designated position, the locking block is moved into the groove, thereby limiting the slider and preventing the slider from loosening after long-term use of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This utility model Figure 1 A three-dimensional sectional view of the upper connecting body;

[0016] Figure 3This utility model Figure 2 Enlarged view of the connection block;

[0017] Figure 4 This utility model Figure 3 Enlarged view of point A.

[0018] In the diagram: 1. Knee joint body; 2. Upper connector; 3. Mounting component; 4. Connecting groove; 5. Connecting block; 6. Slot; 7. Slider; 8. Support ring; 9. Slide rod; 10. Pull block; 11. Pull ring; 12. Spring; 13. Guide rod; 14. Limiting mechanism; 141. Fixing block; 142. Groove; 143. Slot; 144. Sliding groove; 145. Pull rod; 146. Handle; 147. Elastic sponge. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 A single-axis manual locking knee joint includes a knee joint body 1, an upper connecting body 2 fixedly connected to the knee joint body 1, an mounting part 3 contacting the upper end of the upper connecting body 2, a connecting groove 4 inside the upper connecting body 2, a connecting block 5 contacting the inside of the connecting groove 4, the connecting block 5 being fixedly connected to the mounting part 3, a slot 6 inside the connecting block 5, a slider 7 slidably connected inside the slot 6, a support ring 8 fixedly connected to the end of the slider 7 away from the slot 6, a sliding rod 9 fixedly connected to the side of the support ring 8 away from the slider 7, a pull block 10 fixedly connected to the end of the sliding rod 9 away from the support ring 8, a pull block 10 contacting the outer side of the upper connecting body 2, and a pull ring 11 fixedly connected to the side of the pull block 10 away from the slide rod 9. By designing the pull ring 11, the slider can be driven. 7. The slide bar 9 is equipped with a spring 12 on its outer side. One end of the spring 12 is fixedly connected to the support ring 8, and the other end of the spring 12 is fixedly connected to the upper connecting body 2. By designing the spring 12, the support ring 8 has an elastic force. The support ring 8 is slidably connected to a guide rod 13, which is fixedly connected to the upper connecting body 2. The upper connecting body 2 is slidably connected to the slider 7 and the slide bar 9. The upper connecting body 2 is equipped with a limit mechanism 14. By pulling the slider 7, after the slider 7 moves to the designated position, the upper knee joint body 1, the upper connecting body 2, and the slider 7 are moved to the designated position of the mounting part 3. Then the slider 7 is moved into the slot 6, thereby limiting the device and making the device easy to install.

[0021] Please see Figure 4 The limiting mechanism 14 includes a fixing block 141. The fixing block 141 is fixedly connected to the outside of the slide rod 9. The fixing block 141 is in contact with the upper connecting body 2. The fixing block 141 has a groove 142 inside. A locking block 143 is slidably connected inside the groove 142. The upper connecting body 2 has a sliding groove 144 inside. A pull rod 145 is slidably connected inside the sliding groove 144. By designing the pull rod 145, the locking block 143 can be moved. A handle 146 is fixedly connected to the pull rod 145. The handle 146 is slidably connected to the upper connecting body 2. By designing the handle 146, the pull rod 145 can be moved.

[0022] Please see Figure 4 The upper connecting body 2 is provided with an elastic sponge 147. One end of the elastic sponge 147 is fixedly connected to the locking block 143, and the other end of the elastic sponge 147 is fixedly connected to the upper connecting body 2. By designing the elastic sponge 147, the locking block 143 has an elastic effect. The upper connecting body 2 and the locking block 143 are slidably connected. By moving the locking block 143 to the designated position, when the fixed block 141 and other components move to the designated position, the locking block 143 is moved into the groove 142, thereby limiting the slider 7 and preventing the slider 7 from loosening after long-term use of the device.

[0023] The specific implementation process of this utility model is as follows: The basic principle of single-axis manual knee joint locking has been disclosed in the utility model patent with patent authorization announcement number CN2100878U;

[0024] When the device needs to be installed, pull handle 146 downwards. This downward movement of handle 146 causes pull rod 145 to move downwards, which in turn causes locking block 143 to move downwards. Locking block 143 compresses elastic sponge 147, causing it to move out of groove 142. Then, pull ring 11 is pulled away from upper connecting body 2. This movement of ring 11 causes pull block 10 to move, which in turn causes slide rod 9 to move. Slide rod 9 then causes fixed block 141 and support ring 8 to move. Fixed block 141 moves groove 142, and support ring 8 moves slider 7, compressing spring 12. Slide rod 7 then moves to the designated position. After placement, the moving knee joint body 1 moves the pull ring 11, slider 7, and connecting groove 4 to the designated position on the mounting part 3. Then, the pull ring 11 is released, and the elastic force of the spring 12 pushes the support ring 8 to move. The movement of the support ring 8 drives the slider 7 and other components to move. The slider 7 moves into the slot 6, thereby limiting the device and making it easy to install. Then, the handle 146 is released, and the elastic force of the elastic sponge 147 pushes the locking block 143 to move. The movement of the locking block 143 drives the pull rod 145 to move, and the movement of the pull rod 145 drives the handle 146 to move. The locking block 143 moves into the groove 142, thereby limiting the slider 7 and preventing the slider 7 from loosening after long-term use of the device.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single-axis manual locking knee joint, comprising a knee joint body (1), characterized in that: An upper connector (2) is fixedly connected to the knee joint body (1). The upper end of the upper connector (2) contacts an installation part (3). A connecting groove (4) is provided inside the upper connector (2). A connecting block (5) contacts the inside of the connecting groove (4). The connecting block (5) is fixedly connected to the installation part (3). A slot (6) is provided inside the connecting block (5). A slider (7) is slidably connected inside the slot (6). A support ring (8) is fixedly connected to the end of the slider (7) away from the slot (6). A slide rod (9) is fixedly connected to the side of the ring (8) away from the slider (7). A pull block (10) is fixedly connected to the end of the slide rod (9) away from the support ring (8). A spring (12) is provided on the outside of the slide rod (9). A guide rod (13) is slidably connected inside the support ring (8). The guide rod (13) is fixedly connected to the upper connecting body (2). The upper connecting body (2) is slidably connected to the slider (7). The upper connecting body (2) is slidably connected to the slide rod (9). A limit mechanism (14) is provided inside the upper connecting body (2).

2. A single-axis manual locking knee joint according to claim 1, characterized in that: The outer side of the upper connector (2) is in contact with a pull block (10), and a pull ring (11) is fixedly connected to the side of the pull block (10) away from the slide bar (9).

3. A single-axis manual locking knee joint according to claim 1, characterized in that: One end of the spring (12) is fixedly connected to the support ring (8), and the other end of the spring (12) is fixedly connected to the upper connecting body (2).

4. A single-axis manual locking knee joint according to claim 1, characterized in that: The limiting mechanism (14) includes a fixing block (141). The fixing block (141) is fixedly connected to the outside of the slide rod (9). The fixing block (141) is in contact with the upper connecting body (2). A groove (142) is opened inside the fixing block (141). A locking block (143) is slidably connected inside the groove (142). An elastic sponge (147) is provided inside the upper connecting body (2). The upper connecting body (2) is slidably connected to the locking block (143).

5. A single-axis manual locking knee joint according to claim 1, characterized in that: The upper connecting body (2) has a sliding groove (144) inside, and a pull rod (145) is slidably connected inside the sliding groove (144).

6. A single-axis manual locking knee joint according to claim 5, characterized in that: A handle (146) is fixedly connected to the pull rod (145), and the handle (146) is slidably connected to the upper connecting body (2).

7. A single-axis manual locking knee joint according to claim 4, characterized in that: One end of the elastic sponge (147) is fixedly connected to the card block (143), and the other end of the elastic sponge (147) is fixedly connected to the upper connector (2).

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