Gait training double ladder ramp structure

By designing a double-ladder ramp structure for gait training, simulating real-life walking scenarios on ramps and stairs, and combining it with lifting components and support mechanisms, the problem of limited functionality in existing equipment is solved, thus improving the effectiveness and safety of rehabilitation training.

CN224484824UActive Publication Date: 2026-07-14NANJING KANGLONGWEI TECH IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING KANGLONGWEI TECH IND CO LTD
Filing Date
2025-04-23
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing gait training equipment has limited functionality and cannot simulate complex walking scenarios, resulting in a large gap between the rehabilitation training effect and real life. When patients return to normal life, they may face the risk of falling or having difficulty walking due to a lack of adaptability.

Method used

A gait training double-ladder ramp structure is designed, including a ramp mechanism and a support mechanism. The ramp mechanism simulates the walking scenario of ramps and stairs in real life through the ramp surface and the ladder surface. The lifting component can adjust the slope and the height of the ladder surface, and the support mechanism provides multiple stable support points to help patients maintain balance.

Benefits of technology

It improved the effectiveness of rehabilitation training, enhanced patients' ability to adapt to walking after returning to normal life, reduced the risk of falls, met diverse training needs, and provided a safe and reliable training environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gait training double ladder slope structure, include: slope mechanism, it includes bottom plate and the symmetrical setting on the slope surface and ladder surface of bottom plate, the ladder surface includes a plurality of horizontal arrangement's step, and the topmost step is provided with the top plate between the top end of slope surface, one side of top plate is hinged with the slope surface, and the other side is fixedly connected with the topmost step, the slope mechanism still includes the jacking assembly for driving the top plate to go up and down, the utility model discloses jacking assembly controls top plate to go up and down through electric telescopic link, and the operation is simple and convenient, and the patient or medical staff can adjust the slope of slope surface and the angle of ladder surface according to the training demand, provides the most adaptive training condition for the patient of different recovery stage, improves the training effect.
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Description

Technical Field

[0001] This utility model relates to the field of rehabilitation equipment technology, and in particular to a double-ladder ramp structure for gait training. Background Technology

[0002] In the field of rehabilitation medicine, effective gait training is crucial for patients with gait dysfunction caused by injury, surgery, or neurological diseases. Traditional gait training equipment often has limited functionality and cannot meet diverse training needs. For example, common parallel bar training devices only provide simple support assistance, allowing patients to perform relatively monotonous horizontal walking exercises during training. This fails to simulate common real-life scenarios such as walking on slopes and stairs, resulting in a significant gap between the training effect and actual gait recovery in daily life.

[0003] In real-life environments, such as the gentle slopes of residential areas and the steps of parks, patients need to navigate terrains and stairs of varying gradients after rehabilitation. If rehabilitation training does not adequately cover these scenarios, patients may face risks such as falls and difficulty walking again when returning to normal life due to a lack of adaptability. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the current double-ladder ramp structure for gait training, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a double-ladder ramp structure for gait training, which is suitable for solving the problem that existing gait training equipment has limited functionality and cannot simulate complex walking scenarios.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a gait training double-ladder ramp structure, comprising:

[0008] The ramp mechanism includes a base plate and a ramp surface and a step surface symmetrically arranged on the base plate. The step surface includes a number of horizontally arranged treads. A top plate is provided between the topmost tread and the top of the ramp surface. One side of the top plate is hinged to the ramp surface, and the other side is fixedly connected to the topmost tread. The ramp mechanism also includes a lifting assembly for driving the top plate to rise and fall.

[0009] The support mechanism includes an armrest support and an armpit support disposed on the armrest support.

[0010] As a preferred embodiment of the gait training double-ladder ramp structure of this utility model, wherein: the pedals are symmetrically provided with grooves and sliders that slide in cooperation with the grooves, the sliders on the pedals are slidably disposed in the grooves on adjacent pedals, the cross-sections of the sliders and the grooves are mutually T-shaped, the bottom of the pedals is fixedly connected to a sliding rod, a sliding sleeve is slidably fitted on the sliding rod, and the bottom end of the sliding sleeve is fixedly connected to the base plate.

[0011] As a preferred embodiment of the gait training double-ladder ramp structure of this utility model, a synchronizing rod is rotatably connected to the topmost pedal, and several synchronizing shafts arranged along its length are fixedly connected to the synchronizing rod. A horizontally arranged transverse groove is opened on the pedal, and horizontally arranged transverse grooves are opened on the other pedals. The synchronizing shafts extend into the transverse grooves at the corresponding positions and slide in cooperation with the transverse grooves.

[0012] As a preferred embodiment of the gait training double-ladder ramp structure of this utility model, a transition plate is provided at the bottom of both the ramp surface and the ladder surface, the ramp surface and the transition plate are hinged together, and the bottommost step is fixedly connected to the transition plate.

[0013] In a preferred embodiment of the gait training double-ladder ramp structure of this utility model, the lifting assembly includes an electric telescopic rod fixedly installed on the base plate, and the top end of the electric telescopic rod is connected to the top plate.

[0014] As a preferred embodiment of the gait training double-staircase ramp structure described in this utility model, the handrail support includes three handrails, which are respectively disposed on the ramp surface, the ramp surface, and the top plate. The three handrails are respectively disposed along the extension direction of the ramp surface, the ramp surface, and the top plate. Support rods are symmetrically hinged to the bottom of each of the three handrails. The support rods at the bottom of the three handrails are respectively fixedly installed on the ramp surface, the ramp surface, and the top plate. Three armpit support members are provided and are respectively disposed on the three handrails.

[0015] As a preferred embodiment of the gait training double-ladder ramp structure of this utility model, the armpit support includes a sleeve that is slidably fitted onto the handrail. The top of the sleeve is fixedly connected to a connecting cylinder communicating with the inside of the sleeve. A locking block is slidably connected inside the connecting cylinder. The top of the handrail has multiple slots spaced apart along its length. The bottom of the locking block has a protrusion that mates with the slot. The top of the locking block is fixedly connected to a connecting rod. The top of the connecting rod passes through the connecting cylinder and extends above the connecting cylinder. A threaded sleeve rod is threadedly connected to the top of the connecting rod. An armpit pillow is rotatably connected to the top of the threaded sleeve rod.

[0016] As a preferred embodiment of the gait training double-ladder ramp structure of this utility model, a limiting plate is fixedly connected to the connecting rod and above the connecting cylinder, and a return spring is sleeved on the outer periphery of the connecting rod, with the two ends of the return spring respectively contacting and connecting the limiting plate and the connecting cylinder.

[0017] The beneficial effects of this utility model are: by setting up slopes and steps, it can simulate the common walking scenarios of ramps and steps in real life, so that patients can receive more comprehensive and more realistic training during rehabilitation training, improve the training effect, and enhance the patient's ability to adapt to walking after returning to normal life.

[0018] The lifting assembly controls the raising and lowering of the top plate via an electric telescopic rod, making it simple and convenient to operate. Patients or medical staff can adjust the slope and step angle at any time according to training needs, providing the most suitable training conditions for patients at different stages of recovery and improving training effectiveness.

[0019] The armrest and armpit supports provide multiple stable support points for patients, effectively helping them maintain their balance and reducing the risk of falls. When upper limb support is lost, gravity presses on the connecting rod, engaging the protrusion with the slot to provide support. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 This is a schematic diagram of the overall structure of a double-ladder ramp structure for gait training proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the trapezoidal surface structure of a double-staircase ramp structure for gait training proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the pedal structure of a double-ladder ramp structure for gait training proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the armpit support structure of a double-ladder ramp structure for gait training proposed in this utility model.

[0025] Figure descriptions: 100, Inclined mechanism; 101, Base plate; 102, Slope surface; 103, Trapezoidal surface; 104, Step; 105, Top plate; 106, Slide groove; 107, Slider; 108, Slide rod; 109, Slide sleeve; 110, Synchronizing rod; 111, Synchronizing shaft; 112, Horizontal groove; 113, Transition plate; 114, Electric telescopic rod;

[0026] 200. Support mechanism; 201. Handrail support; 202. Armpit support; 203. Handrail bar; 204. Support rod; 205. Sleeve; 206. Connecting cylinder; 207. Locking block; 208. Slot; 209. Connecting rod; 210. Screw rod; 211. Armpit pillow; 212. Limiting plate; 213. Return spring; 214. Protrusion. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0030] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0031] Example 1

[0032] Reference Figures 1 to 3 This invention provides a gait training double-ladder ramp structure that can simulate common walking scenarios on ramps and stairs in real life, enabling patients to receive more comprehensive and life-like training during rehabilitation training, including ramp mechanism 100.

[0033] The ramp mechanism 100, as the core component, is mainly composed of a base plate 101, a ramp surface 102, a step surface 103, a top plate 105, and a lifting assembly.

[0034] Base plate 101: As the basic load-bearing component of the entire structure, it provides a stable mounting platform for other components, ensuring that the equipment will not shake or shift during use and guaranteeing the safety of patient training.

[0035] Slope 102 and step surface 103: Symmetrically arranged on the base plate 101. Slope 102 is used to simulate a slope scene in real life, allowing patients to exercise their balance, leg muscle strength and adaptability to changes in slope when walking at different inclines. Step surface 103 consists of several horizontally arranged pedals 104, which can simulate a real stair environment and help patients train their leg coordination, muscle control and stride and rhythm control when going up and down stairs.

[0036] Pedal 104: Pedal 104 is symmetrically provided with sliding grooves 106 and sliding blocks 107 that slide with them, and the cross-sections of the sliding blocks 107 and sliding grooves 106 are both T-shaped and mutually matching. This unique design allows the pedals 104 to slide relative to each other while ensuring stability during the sliding process, preventing the pedals 104 from being misaligned or dislodged in the horizontal direction, and ensuring that patients will not fall due to structural problems of the pedals 104 during training. At the same time, a sliding rod 108 is fixedly connected to the bottom of the pedal 104, and a sliding sleeve 109 is slidably fitted on the sliding rod 108. The bottom end of the sliding sleeve 109 is fixedly connected to the base plate 101, which further enhances the stability of the pedal 104 during sliding and ensures the reliability of the ladder surface 103 structure during the adjustment process.

[0037] Synchronizing rod 110 and synchronizing shaft 111: A synchronizing rod 110 is rotatably connected to the topmost pedal 104. Several synchronizing shafts 111 arranged along the length of the synchronizing rod 110 are fixedly connected to it. Horizontally arranged transverse grooves 112 are opened on the remaining pedals 104. The synchronizing shafts 111 extend into the corresponding transverse grooves 112 and slide in cooperation with them. When the lifting assembly drives the top plate 105 to rise or fall, the synchronizing rod 110 rotates, and the synchronizing shafts 111 slide in the transverse grooves 112, causing each pedal 104 to move synchronously. This allows the entire ladder surface 103 to smoothly change its height or slope, ensuring the continuity and stability of the structural changes of the ladder surface 103 during patient training.

[0038] Top plate 105: Located between the topmost step 104 and the top of the slope 102, one side of the top plate 105 is hinged to the slope 102, and the other side is fixedly connected to the topmost step 104. The top plate 105 plays a key role in transition and connection, making it easier and more natural for patients to walk from the slope 102 to the step 103 or vice versa, avoiding walking difficulties or imbalances caused by structural abrupt changes.

[0039] Transition plate 113: A transition plate 113 is provided at the bottom of both the ramp 102 and the step 103. The ramp 102 and the transition plate 113 are hinged together, and the bottom step 104 is fixedly connected to the transition plate 113. The transition plate 113 provides a smooth transition area for the patient's feet when entering or leaving the ramp 102 and the step 103, reducing discomfort caused by changes in ground height. It also protects the bottom structure of the equipment to some extent, preventing damage from frequent footsteps by the patient.

[0040] The lifting assembly includes an electrically operated telescopic rod 114 fixedly mounted on the base plate 101, with its top end connected to the top plate 105. Its working principle is to control the extension and retraction of the electric telescopic rod 114 to raise and lower the top plate 105. When the electric telescopic rod 114 shortens, the top plate 105 rises, the slope of the ramp 102 becomes relatively gentle, and the overall height of the step surface 103 relatively decreases; when the electric telescopic rod 114 extends, the top plate 105 descends, the slope of the ramp 102 becomes steeper, and the overall height of the step surface 103 relatively increases. In this way, the training difficulty can be flexibly adjusted according to the patient's rehabilitation training needs at different stages, meeting diverse training requirements.

[0041] When using the equipment, first place it on a stable training ground. If the patient needs ramp training, adjust the slope of ramp 102 by controlling the electric telescopic rod 114 according to the patient's recovery progress. Activate the electric telescopic rod 114 to extend or shorten it, causing the top plate 105 to rise or fall, thus changing the slope of ramp 102. The patient stands on the transition plate 113 at the bottom of ramp 102 and begins to walk slowly along ramp 102 to perform ramp walking training and improve related abilities. For training on step 103, adjust the height of step 103 as needed (indirectly by adjusting the height of the top plate 105). The patient stands at the bottom of step 103 and steps onto the pedals 104 in sequence to simulate climbing stairs. During training, the sliding connection between the pedals 104 and the coordinated action of the synchronous rod 110 and synchronous shaft 111 ensure the stability of the step 103 structure during adjustment, providing a safe and reliable training environment for the patient.

[0042] The ramp mechanism 100 in this embodiment, through its ingenious structural design, can flexibly simulate ramps of different slopes and treads 103 of different heights, providing patients with diverse training scenarios. The coordinated operation of the various components ensures the stability and reliability of the equipment during adjustment, effectively improving the patient's rehabilitation training outcome.

[0043] Example 2

[0044] Reference Figures 1 to 4 This is the second embodiment of the present invention. Unlike the previous embodiment, a support mechanism 200 is added.

[0045] The support mechanism 200 includes an armrest support 201 and an armpit support 202 disposed on the armrest support 201.

[0046] Handrail support 201: Composed of three handrail bars 203, respectively installed on the slope 102, the step surface 103, and the top plate 105, extending along the direction of their respective surfaces. Each of the three handrail bars 203 has a support rod 204 symmetrically hinged to its bottom, and the support rods 204 are fixedly installed on the slope 102, the step surface 103, and the top plate 105. The handrail bars 203 provide hand support for patients during walking training, helping them maintain balance and significantly reducing the risk of falls. The hinged support rod 204 structure allows the handrail bars 203 to adaptively adjust according to changes in the height or angle of the slope 102, the step surface 103, and the top plate 105, always maintaining a comfortable position and angle for the patient's hands, meeting the patient's handrail support needs in different training scenarios.

[0047] Axillary support components 202: Three are provided, each corresponding to one of the three armrest bars 203. Each axillary support component 202 contains multiple parts, which work together to provide more comprehensive support for the patient.

[0048] Card sleeve 205: Slidably sleeved on the handrail 203, it can slide up and down along the handrail 203 according to the patient's needs to adjust the overall height and position of the axillary support 202.

[0049] Connecting cylinder 206: It is fixedly connected to the top of the sleeve 205 and communicates with the inside of the sleeve 205, providing installation space and guidance for components such as the card block 207.

[0050] Locking block 207: Sliding connection inside the connecting cylinder 206, its bottom is provided with a protrusion 214 that cooperates with multiple locking slots 208 spaced apart along the length of the top of the handrail 203. Under normal conditions, the locking block 207 relies on the upward elastic force of the return spring 213 to separate the protrusion 214 from the locking slots 208, facilitating adjustment of the height of the axillary support 202. When the patient's upper limb loses balance support and pressure is applied to the axillary pillow 211, the axillary pillow 211 presses down on the connecting rod 209, and the connecting rod 209 drives the locking block 207 to move downward. At this time, the protrusion 214 at the bottom of the locking block 207 can quickly engage with the corresponding locking slot 208, accurately locking the position of the axillary support 202 on the handrail 203, preventing the locking sleeve 205 from slipping down and avoiding the trainee from falling.

[0051] Connecting rod 209: The top is fixedly connected to the locking block 207, passes through the connecting cylinder 206 and extends above the connecting cylinder 206. Its function is to transmit the positional changes of the locking block 207 and provide a mounting base for subsequent components. When the patient loses balance, it can quickly transmit the pressure on the axillary pillow 211 to the locking block 207, causing the locking block 207 to engage with the locking slot 208.

[0052] Screw sleeve 210: Threaded to the top of connecting rod 209. By rotating screw sleeve 210, the height and angle of axillary pillow 211 can be finely adjusted to further improve patient comfort.

[0053] Axillary pillow 211: Rotatably connected to the top of the threaded rod 210, the patient places their armpit on the axillary pillow 211 during training, providing an additional support point for the body and effectively reducing the burden on the legs. The rotatable connection design allows the axillary pillow 211 to adaptively adjust according to the patient's body posture, conforming to the patient's armpit and improving the support effect. In case of emergencies, such as the patient losing balance, the axillary pillow 211 can bear the pressure first, activating the emergency locking mechanism of the locking block 207 and the locking slot 208.

[0054] Limiting plate 212 and return spring 213: A limiting plate 212 is fixedly connected to the connecting rod 209 and located above the connecting cylinder 206. A return spring 213 is sleeved on the outer periphery of the connecting rod 209. The two ends of the return spring 213 are respectively in contact with the limiting plate 212 and the connecting cylinder 206. Under normal conditions, the return spring 213 provides an upward elastic force to the locking block 207, keeping the protrusion 214 at the bottom of the locking block 207 separated from the locking groove 208, allowing the user to flexibly adjust the height of the armpit support 202 according to their height. When a patient accidentally loses balance support from the handrail 203 during training, and their body tilts to one side with pressure concentrated on the armpit pillow 211, the armpit pillow 211 pushes the connecting rod 209 to overcome the elastic force of the return spring 213 and move it downward, causing the locking block 207 to move downward. This allows the protrusion 214 at the bottom of the locking block 207 to quickly embed into the corresponding slot 208 on the handrail 203, preventing the locking sleeve 205 from sliding down the handrail 203. This provides unexpected support for the trainee, greatly reducing the risk of falls and ensuring the stability and reliability of the support.

[0055] Usage: When using the support mechanism 200, first, rotate the screw rod 210 according to the patient's height, and then fine-tune the height and angle of the armpit pillow 211 according to the patient's armpit comfort. When training on the ramp or step 103, the patient holds the corresponding handrail 203 with both hands, resting their armpits on the adjusted armpit pillow 211. Under normal circumstances, the patient maintains balance by relying on their hands and armpits for support. If the patient accidentally loses balance during training and their upper limbs cannot provide effective support, the pressure is transferred to the armpit pillow 211, triggering the emergency engagement mechanism of the locking block 207 and the locking slot 208, providing emergency support to the patient, preventing falls, and helping the patient complete the training smoothly.

[0056] The support mechanism 200 in this embodiment provides reliable hand and armpit support for patients through its rational design and coordinated operation of components. It not only meets patients' needs for stability and comfort during normal training, but its adjustable design also accommodates patients of different heights, improving the device's versatility. Furthermore, in the event of sudden imbalance, the unique emergency locking design of the armpit support 202 can quickly take effect, effectively enhancing patient safety during training and further improving the effectiveness of rehabilitation training.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A double-ladder ramp structure for gait training, characterized in that, include: The ramp mechanism (100) includes a base plate (101) and ramp surfaces (102) and step surfaces (103) symmetrically arranged on the base plate (101), wherein the step surfaces (103) include a plurality of horizontally arranged treads (104). A top plate (105) is provided between the top of the top pedal (104) and the top of the slope (102). One side of the top plate (105) is hinged to the slope (102), and the other side is fixedly connected to the top pedal (104). The ramp mechanism (100) also includes a lifting assembly for driving the top plate (105) to rise and fall. A support mechanism (200) includes a handrail support (201) and a component disposed on the handrail support (201). Axillary support (202); The handrail support (201) includes three handrails (203), which are respectively set on the slope (102), the step surface (103) and the top plate (105). The three handrails (203) are respectively set along the extension direction of the slope (102), the step surface (103) and the top plate (105). The bottom of each of the three handrails (203) is symmetrically hinged with a support rod (204). The support rods (204) at the bottom of the three handrails (203) are respectively fixedly installed on the slope (102), the step surface (103) and the top plate (105). There are three armpit support members (202), which are respectively set on the three handrails (203).

2. The gait training double-ladder ramp structure according to claim 1, characterized in that: The pedal (104) is symmetrically provided with a sliding groove (106) and a slider (107) that slides in cooperation with the sliding groove (106). The slider (107) on the pedal (104) is slidably disposed in the groove (106) on the adjacent pedal (104). In the middle, the cross-sections of the slider (107) and the groove (106) are T-shaped and they fit each other. The bottom of the pedal (104) is fixedly connected to the slide rod (108), and the slide rod (108) is slidably fitted with a slide sleeve (109). The bottom end of the slide sleeve (109) is fixedly connected to the base plate (101).

3. The gait training double-ladder ramp structure according to claim 2, characterized in that: A synchronizing rod (110) is rotatably connected to the topmost pedal (104). Several synchronizing shafts (111) arranged along its length are fixedly connected to the synchronizing rod (110). A horizontally arranged transverse groove (112) is opened on the pedal (104). Horizontally arranged transverse grooves (112) are opened on the other pedals (104). The synchronizing shafts (111) extend into the corresponding transverse grooves (112) and slide in cooperation with the transverse grooves (112).

4. The gait training double-ladder ramp structure according to claim 1, characterized in that: The bottom of the slope (102) and the step (103) are provided with transition plates (113), the slope (102) and the transition plates (113) are hinged together, and the bottommost step (104) is fixedly connected to the transition plates (113).

5. The gait training double-ladder ramp structure according to claim 1, characterized in that: The lifting assembly includes an electric telescopic rod (114) fixedly installed on the base plate (101), the top end of which is connected to the top plate (105).

6. The gait training double-ladder ramp structure according to claim 1, characterized in that: The armpit support (202) includes a sleeve (205), which is slidably fitted onto the armrest (203). The top of the sleeve (205) is fixedly connected to a connecting cylinder (206) communicating with the inside of the sleeve (205). A locking block (207) is slidably connected inside the connecting cylinder (206). The top of the armrest (203) is provided with multiple slots (208) spaced apart along its length. The bottom of the locking block (207) is provided with a protrusion (214) that cooperates with the slot (208). The top of the locking block (207) is fixedly connected to a connecting rod (209). The top of the connecting rod (209) passes through the connecting cylinder (206) and extends above the connecting cylinder (206). The top of the connecting rod (209) is threadedly connected to a threaded sleeve rod (210). The top of the threaded sleeve rod (210) is rotatably connected to an armpit pillow (211).

7. The gait training double-ladder ramp structure according to claim 6, characterized in that: A limiting piece (212) is fixedly connected to the connecting rod (209) and above the connecting cylinder (206). A return spring (213) is sleeved on the outer periphery of the connecting rod (209). The two ends of the return spring (213) are respectively connected to the limiting piece (212) and the connecting cylinder (206).