Walking aid
By designing an adjustable chest and pelvic support component and a height-adjustable handle, the problem of existing walking aids being unable to adapt to different heights and rehabilitation stages has been solved, thus improving safety and flexibility.
Patent Information
- Application Number
- CN202511732892.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-01-30
AI Technical Summary
Existing walking aids cannot provide precise support intensity adjustment and safety protection, making it difficult to adapt to the rehabilitation training needs at different stages. Furthermore, the fixed height of traditional crutches cannot meet the usage needs of people of different heights.
A walking aid was designed, comprising a chest support component and a pelvic support component, equipped with height and depth adjustment mechanisms, combined with handle height adjustment and omnidirectional wheel orientation mechanism, to achieve independent support and flexible adjustment for different parts of the body.
It improves the safety and flexibility of walking aids, meets the needs of people of different heights and rehabilitation stages, and has a simple structure and is easy to use.
Smart Images

Figure CN121421808A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of medical rehabilitation, and particularly relates to a walking aid. BACKGROUND
[0003] Looking back, the early auxiliary action tool is mainly crutch, which can only provide single-point support and has limited stability. When walking on uneven ground or suddenly changing the direction of travel, it is difficult to effectively distribute body weight and maintain balance, which not only cannot meet the demand of long-distance movement, but also may increase the risk of falling due to insufficient support. At the same time, the height of the traditional crutch is fixed and cannot adapt to the use needs of people of different heights.
[0004] From the demand of the field of medical rehabilitation, postoperative patients (such as patients after leg fracture and joint replacement), patients with nervous system diseases (such as hemiplegia caused by sequelae of stroke) need to recover limb function through sequential walking training during the rehabilitation process, but this group of people often have weak muscle control ability and poor balance perception. The traditional auxiliary tool cannot provide precise support strength adjustment and safety protection, and it is difficult to adapt to the training needs of different stages of rehabilitation. These needs together promote the technical research and innovation of walking aids. SUMMARY
[0005] The technical problem to be solved by the present application is to provide a walking aid which is reasonable in design, convenient to use and more reasonable in structure and function.
[0006] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: A walking aid, characterized in that it comprises a main frame, a chest support assembly and a pelvis support assembly are arranged on the main frame; The chest support assembly is provided with a chest support frame, and the chest support frame is installed on the main frame through a chest height adjusting mechanism on both sides of the chest support frame; The pelvis support assembly comprises a pelvis support frame, a hanging seat arranged in the pelvis support frame, and a pelvis depth adjusting mechanism and a pelvis height adjusting mechanism arranged on both sides of the pelvis support frame, and the pelvis support frame is installed on the main frame through the pelvis depth adjusting mechanism and the pelvis height adjusting mechanism, The chest height adjusting mechanism and the pelvis height adjusting mechanism each comprise a height adjusting rod arranged on both sides of the chest support frame and both sides of the pelvis support frame, and a plug arranged on the main frame, the height adjusting rod is vertically inserted into the plug, and a height adjusting handle for locking the height adjusting rod is arranged on the plug; The pelvis depth adjusting mechanism comprises a horizontally arranged depth adjusting rod and a sleeve arranged on both sides of the pelvis support frame, the depth adjusting rod is horizontally inserted into the sleeve, and a depth adjusting handle for locking the depth adjusting rod is further arranged on the sleeve.
[0007] The technical problem to be solved by the present invention can also be achieved by the following technical solution: a handle is also installed in front of the main frame. The handle includes a handle body and a handle base. Handle height adjustment mechanisms are symmetrically installed on both sides of the handle base.
[0008] The technical problem to be solved by the present invention can also be achieved by the following technical solution: the handle height adjustment mechanism includes a left clamping block and a right clamping block disposed on both sides of the handle seat. The left clamping block and the right clamping block are mounted on the handle seat by clamping screws. The bottom of the left clamping block and the right clamping block are provided with handle height adjustment rods. The handle height adjustment rods are vertically inserted into the main frame. The main frame is provided with handle height adjustment handles that cooperate with the handle height adjustment rods.
[0009] The technical problem to be solved by the present invention can also be achieved by the following technical solution: the main frame, the chest support frame and the pelvic support frame are all provided with a U-shaped frame with the opening facing backward.
[0010] The technical problem to be solved by the present invention can also be achieved by the following technical solution: a lifting rod is provided at the U-shaped frame opening of the chest support frame and the pelvic support frame. One end of the lifting rod is hinged to one end of the U-shaped frame, and the other end of the lifting rod is connected to the U-shaped frame through a locking mechanism. The chest support is a U-shaped structure that is easy to enter and exit, and the padding is soft and comfortable. The lifting rod provided at the opening is a back connecting rod, with one end hinged by a screw and the other end inserted by an indexing pin.
[0011] The technical problem to be solved by the present invention can also be achieved by the following technical solution: the locking mechanism includes a U-shaped seat at one end of the U-shaped frame and an indexing pin passing through the U-shaped seat, and a pin hole that cooperates with the indexing pin is provided at the end of the lifting rod.
[0012] The technical problem to be solved by the present invention can also be achieved by the following technical solution: front casters and rear casters are installed at the bottom of the main frame, and a directional mechanism for the front casters is provided on the main frame. The directional mechanism includes a directional groove on the main frame and a directional piece that cooperates with the directional groove. One end of the directional piece is connected to a tension spring, and the other end of the directional piece is hinged to a support on the front caster by a hinge screw.
[0013] The technical problem to be solved by the present invention can also be achieved by the following technical solution: both the chest support frame and the pelvic support frame are covered with padding to improve comfort.
[0014] The technical problem to be solved by the present invention can also be achieved by the following technical solution: the leg divider is a vertical partition extending from front to back, and the vertical partition is located in the middle of the bottom of the main frame.
[0015] The technical problem to be solved by the present invention can also be achieved by the following technical solution: both the chest height adjustment rod and the pelvic height adjustment rod are provided with scales that facilitate precise adjustment.
[0016] Compared with the prior art, the present invention has the following technical effects: First, by incorporating a chest support component, a pelvic support component, a hanging seat, and a leg separator, independent support is provided for each part of the body, thus improving the overall safety of the walking aid. Secondly, by setting up chest height adjustment rods, pelvic depth adjustment rods, and pelvic height adjustment rods, the positions of the chest support components and pelvic support components can be adjusted according to the patient's height and body shape, making the entire walking aid highly flexible in use; Third, it has a simple structure and is easy to install and use, which fully meets the needs of actual use. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the walking aid described in this invention; Figure 2 These are structural diagrams of the chest support assembly and the pelvic support assembly; Figure 3 Here is a structural diagram of the handle; Figure 4 This is a structural diagram of the omnidirectional wheel orientation mechanism; Figure 5 This is a structural diagram of the U-shaped frame for the chest support assembly and pelvic support assembly.
[0018] In the diagram: 1-Main frame, 2-Hanging seat, 3-Pelvic support assembly, 4-Chest support assembly, 5-Handle, 6-Leg separator; 2.1 - Chest height adjustment lever, 2.2 - Chest height adjustment handle, 2.3 - Pelvic height adjustment lever, 2.4 - Pelvic height adjustment handle, 2.5 - Pelvic depth adjustment handle, 2.6 - Pelvic depth adjustment lever; 3.1-Right clamping block, 3.2-Left clamping block, 3.3-Handle adjustment handle, 3.4-Clamping screw; 4.1-Wheel caster, 4.2-Guide plate, 4.3-Tension spring, 4.4-Hinge screw, 4.5-Guide groove; 5.1- U-shaped frame, 5.2- Hinge point, 5.3- Lifting rod, 5.4- Pin hole, 5.5- Indexing pin. Detailed Implementation
[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0021] Reference Figures 1-5 A walking aid includes a main frame 1, on which a chest support assembly 4, a pelvic support assembly 3, a hanging seat 2, and a leg spreader 6 are arranged sequentially from top to bottom. The hanging seat 2 is mounted on the pelvic support assembly 3. Both the chest support frame and the pelvic support frame are covered with padding to improve comfort, providing a soft and comfortable feel. The leg spreader 6 is a vertical partition extending from front to back, located in the middle of the bottom of the main frame. The chest support assembly is equipped with a chest support frame, and the chest support frame is mounted on the main frame on both sides via a chest height adjustment mechanism. The pelvic support assembly includes a pelvic support frame, a suspension bracket disposed within the pelvic support frame, and pelvic depth adjustment mechanisms and pelvic height adjustment mechanisms disposed on both sides of the pelvic support frame. The pelvic support frame is mounted on the main frame via the pelvic depth adjustment mechanisms and the pelvic height adjustment mechanisms. Both the chest height adjustment mechanism and the pelvic height adjustment mechanism include height adjustment rods located on both sides of the chest support frame and on both sides of the pelvic support frame, and insertion tubes located on the main frame. The height adjustment rods are vertically inserted into the insertion tubes, and height adjustment handles for locking the height adjustment rods are provided on the insertion tubes. That is, there are a chest height adjustment rod 2.1, a chest height adjustment handle 2.2 that cooperates with the chest height adjustment rod 2.1, a pelvic height adjustment rod 2.3, a pelvic depth adjustment rod 2.6, a pelvic height adjustment handle 2.4 that cooperates with the pelvic height adjustment rod, and a pelvic depth adjustment handle 2.5 that cooperates with the pelvic depth adjustment rod 2.6.
[0022] The main frame serves as the support frame for the walking aid. The chest support component is a U-shaped structure designed to prevent poor trunk balance control, stabilize the trunk position, and reduce pressure on the legs. The pelvic support component is a U-shaped structure designed to prevent poor pelvic balance control and stabilize the pelvic position. The suspension seat wraps around the buttocks, supporting the body and reducing pressure on the legs, enabling users with weak leg strength to take steps. The handles support the arms, control the walking direction, and enhance head and neck control. The leg separator separates the legs and feet to prevent scissor gait.
[0023] A handle 5 is also installed in front of the main frame 1. The handle 5 includes a handle body and a handle base. Handle height adjustment mechanisms are symmetrically installed on both sides of the handle base.
[0024] The handle height adjustment mechanism includes a left clamping block 3.2 and a right clamping block 3.1 located on both sides of the handle seat. The left clamping block 3.2 and the right clamping block 3.1 are mounted on the handle seat by clamping screws 3.4. The bottom of the left clamping block 3.2 and the right clamping block 3.1 are provided with handle height adjustment rods. The handle height adjustment rods are vertically inserted into the main frame. The main frame 1 is provided with handle height adjustment handles 3.3 that cooperate with the handle height adjustment rods. The vertical insertion structure is the same as the vertical insertion structure described above.
[0025] The main frame, chest support frame, and pelvic support frame are all equipped with U-shaped frames with rearward openings. A lifting rod 5.3 is provided at the opening of the U-shaped frame 5.1 of the chest support frame and pelvic support frame. One end of the lifting rod 5.3 is hinged to one end of the U-shaped frame 5.1, and the other end of the lifting rod 5.3 is connected to the U-shaped frame via a locking mechanism. The locking mechanism includes a U-shaped seat at one end of the U-shaped frame and an indexing pin 5.5 passing through the U-shaped seat. A pin hole 5.4 is provided at the end of the lifting rod to mate with the indexing pin. The lifting rod 5.3 is hinged to the U-shaped frame 5.1 via a hinge point 5.2. When moving in and out of the U-shaped frame 5.1, the indexing pin 5.5 is pulled out, and the pin head is pulled out from the pin hole 5.4. The lifting rod 5.3 is then raised to move in and out of the U-shaped frame 5.1. When the lifting rod 5.3 is lowered, the pin head of the indexing pin 5.5 is inserted into the pin hole 5.4, and the lifting rod is fixed.
[0026] Front and rear casters are installed at the bottom of the main frame. Both front and rear casters are swivel casters 4.1. A directional mechanism for the front casters is provided on the main frame. The directional mechanism includes a directional groove 4.5 on the main frame and a directional piece 4.2 that mates with the directional groove 4.5. One end of the directional piece 4.2 is connected to the front caster via a tension spring 4.3, and the other end of the directional piece is hinged to a support on the front caster via a hinge screw. The directional structure is in the non-working state as follows: Figure 4 As shown, when the orientation structure is required, the orientation piece 4.2 is pushed upwards. The end of the orientation piece that is connected to the tension spring rotates upwards around the hinge screw 4.4 until the orientation piece 4.2 is locked in the positioning groove 4.5. At this time, due to the tension of the tension spring 4.3, the orientation piece 4.2 is fixed in the orientation groove 2.5. The restriction of the orientation piece prevents the caster wheel from rotating, thus completing the orientation function.
[0027] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A walking aid, characterized in that, The main frame is provided with a chest support assembly and a pelvis support assembly; The chest support assembly is provided with a chest support frame, and the chest support frame is installed on the main frame through a chest height adjusting mechanism on both sides of the chest support frame; The pelvis support assembly comprises a pelvis support frame, a hanging seat arranged in the pelvis support frame, and a pelvis depth adjusting mechanism and a pelvis height adjusting mechanism arranged on both sides of the pelvis support frame, and the pelvis support frame is installed on the main frame through the pelvis depth adjusting mechanism and the pelvis height adjusting mechanism, The chest height adjusting mechanism and the pelvis height adjusting mechanism each comprise a height adjusting rod arranged on both sides of the chest support frame and the pelvis support frame, and a plug tube arranged on the main frame, the height adjusting rod is vertically inserted into the plug tube, and a height adjusting handle for locking the height adjusting rod is arranged on the plug tube; The pelvis depth adjusting mechanism comprises a horizontally arranged depth adjusting rod and a sleeve arranged on both sides of the pelvis support frame, the depth adjusting rod is horizontally inserted into the sleeve, and a depth adjusting handle for locking the depth adjusting rod is further arranged on the sleeve.
2. A walking aid according to claim 1, characterised in that A handle is further arranged in front of the main frame, and the handle comprises a handle body and a handle seat, and a handle height adjusting mechanism is symmetrically arranged on both sides of the handle seat.
3. A walking aid according to claim 2, characterised in that The handle height adjusting mechanism comprises a left clamping block and a right clamping block arranged on both sides of the handle seat, the left clamping block and the right clamping block are installed on the handle seat through clamping screws, the bottom of each of the left clamping block and the right clamping block is provided with a handle height adjusting rod, the handle height adjusting rod is vertically inserted into the main frame, and a handle height adjusting handle matched with the handle height adjusting rod is arranged on the main frame.
4. A walking aid according to claim 1, characterised in that The main frame, the chest support frame and the pelvis support frame are each provided with a U-shaped frame with an opening arranged towards the rear.
5. A walking aid according to claim 4, characterised in that, A lifting rod is arranged at the opening of the U-shaped frame of the chest support frame and the pelvis support frame, one end of the lifting rod is hingedly connected to one end of the U-shaped frame, and the other end of the lifting rod is connected to the U-shaped frame through a locking mechanism.
6. A walking aid according to claim 5, characterised in that The locking mechanism comprises a U-shaped seat arranged at one end of the U-shaped frame and an index pin penetrating through the U-shaped seat, and a pin hole matched with the index pin is arranged at the end of the lifting rod.
7. A walking aid according to claim 1, characterised in that Front casters and rear casters are arranged at the bottom of the main frame, a directional mechanism of the front casters is arranged on the main frame, the directional mechanism comprises a directional slot arranged on the main frame and a directional piece matched with the directional slot, one end of the directional piece is connected with a tension spring, and the other end of the directional piece is hingedly connected to a support arranged on the front caster through a hinge screw.
8. A walking aid according to claim 1, characterised in that Comfortable cushions are arranged on the chest support frame and the pelvis support frame.
9. A walking aid according to claim 1, characterised in that A leg separating device is further arranged at the bottom of the main frame, the leg separating device is a vertical partition plate extending from front to back, and the vertical partition plate is arranged at the middle of the bottom of the main frame.
10. The walking aid of claim 1, wherein, A scale for accurate adjustment is arranged on each of the height adjusting rods.