Dynamic projection adjusting device for spinal cord rehabilitation training

By using a dynamic projection adjustment device, which incorporates hydraulic cylinders and focus adjustment mechanisms, the problem of image stitching in the use of multiple projectors is solved, enabling automatic adjustment and improved clarity of the projector, and supporting spinal cord rehabilitation training.

CN224470016UActive Publication Date: 2026-07-07SHANGHAI TONGJI HOSPITAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI TONGJI HOSPITAL
Filing Date
2025-09-17
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing technologies require the use of multiple projectors, making it crucial to control the seamless transition between multiple images on the ground, and thus making it difficult to achieve effective projection adjustment.

Method used

A dynamic projection adjustment device is adopted, which uses a combination of hydraulic cylinders, long bolts, miniature cylinders and focus adjustment knobs to achieve automatic adjustment of the projector's height and focus, ensuring the adaptability of image clarity and projection spacing.

Benefits of technology

The projector features automatic adjustment, improved image clarity, facilitates patient interaction with the ground display, and supports more effective rehabilitation training.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to dynamic projection adjusting device technical field provides the dynamic projection adjusting device for the spine spinal cord rehabilitation training, include: mounting seat and projector, two baffle set in the symmetry of mounting seat one side surface, still include: camera set up on the surface of projector, the inside of projector is provided with focal length adjusting button, the utility model, according to the projector of different size, the high and low adjustment of the position of micro -cylinder one in the adjusting slot, make the installation frame with focal length adjusting button keep the same level, when the threaded rod of rotating rectangular frame inside, make the horizontal movement of moving frame along the guide rod, let the convex block and focal length adjusting button contact, when micro -cylinder two work, by the overall movement of rectangular frame, make focal length adjusting button rotate, thereby automatically adjusting focal length, make the image more clear, be convenient for the rehabilitation training of later patient cooperation ground picture.
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Description

Technical Field

[0001] This utility model relates to the field of dynamic projection adjustment device technology, and in particular to a dynamic projection adjustment device for spinal cord rehabilitation training. Background Technology

[0002] With the development of the economy in various countries around the world, the incidence of spinal cord injury is showing a trend of increasing year by year. Spinal cord injury is the most serious complication of spinal injury, often leading to severe functional impairment of the limbs below the injured segment. Therefore, patients often need to undergo rehabilitation training such as exercise to help them recover.

[0003] However, in the existing technology, a single case study published in Japan in 2021 on visual stimulation training for USN patients showed that the behavioral outcomes and left-side spatial radiotherapy of patients performing stimulus-driven attention tasks were improved. By using a projection walkway and a radar matrix based on motion trajectory prediction, the tracking and measurement of a single person's cadence, stride length, gait, and walking trajectory can be initially achieved. Through radar human echo optimization, the interactive animation relationship between the human body and the ground image can be realized, thereby analyzing and monitoring the progress of human rehabilitation. However, since it needs to be used in conjunction with multiple projections, it is important to control the connection between the multiple ground images, and the projection needs to be adjusted. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies: by employing a projection walkway and a radar matrix based on motion trajectory prediction, it is possible to initially track and measure a person's cadence, stride length, walking speed, and walking trajectory. Through radar human body echo optimization, an interactive animation relationship between the human body and the ground image can be realized, thereby analyzing and monitoring the progress of human rehabilitation. However, since it needs to be used in conjunction with multiple projections, controlling the connection between the multiple ground images is quite important, and the projection needs to be adjusted.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a dynamic projection adjustment device for spinal cord rehabilitation training, comprising: a mounting base and a projector; two baffles, symmetrically positioned on one side surface of the mounting base; and further comprising:

[0006] A camera is mounted on the surface of the projector, and a focus adjustment knob is installed inside the projector.

[0007] A hydraulic cylinder is mounted on the surface of the mounting base. A positioning frame is provided at the output end of the hydraulic cylinder. The positioning frame is slidably embedded inside the baffle. Long grooves are opened on the symmetrical surface of the positioning frame. Moving plates are slidably embedded inside the two long grooves. Protective pads are provided on the surface of one end of the two moving plates. The two protective pads are located symmetrically on the surface of the projector. Springs are provided on one side surface of the two moving plates. One end of the two springs is located on the inner wall of the long groove. Protective pads are provided on the surface of the center of one side of the positioning frame. Protective pads are located on the surface of the projector.

[0008] Two long bolts are threaded onto the surface of the positioning frame at symmetrical locations, and one side of the two long bolts is movably connected to the surface of the moving plate.

[0009] Preferably, one end of the two long bolts is threaded with a locking nut, and one of the baffles has a groove on its surface.

[0010] The technical effect of adopting the above-mentioned further solution is that the locking nut is sleeved on the surface of the long bolt and contacts the inner wall of the long groove to provide locking. At the same time, the baffle surface has a slot to facilitate the installation of internal parts.

[0011] Preferably, a miniature cylinder is provided inside the slot, and a mounting frame is provided at the output end of the miniature cylinder.

[0012] The technical effect of adopting the above-mentioned further solution is that when the miniature cylinder inside the slot is working, it drives the output end mounting frame to move in height, making it suitable for projection equipment of different sizes.

[0013] Preferably, the mounting frame is slidably embedded inside the slot, and a miniature cylinder is provided inside the mounting frame.

[0014] The technical effect of adopting the above-mentioned further solution is that the mounting frame is limited by the slot, and the mounting frame positions the miniature cylinder 2 at the same time.

[0015] Preferably, the output end of the second miniature cylinder is provided with a rectangular frame, and a guide rod is fixedly provided on the inner wall of the rectangular frame.

[0016] The technical effect of adopting the above-mentioned further solution is that when the micro cylinder two is working, it drives the rectangular frame at the output end to move, and at the same time the rectangular frame positions the guide rod.

[0017] Preferably, one end of the guide rod is slidably fitted with a movable frame, and the surface of the movable frame is threaded with a threaded rod.

[0018] The technical effect of adopting the above-mentioned further solution is that when the threaded rod is rotated, the movable frame with the threaded sleeve on the outer surface is driven to move along the surface of the guide rod.

[0019] Preferably, one end of the movable frame is provided with a protrusion, and the surface of the protrusion is movably connected to the surface of the focus adjustment knob.

[0020] The technical effect of adopting the above-mentioned further solution is that when the protrusion of the moving frame contacts the focus adjustment knob, the focus adjustment knob is rotated by the operation of the micro cylinder two, thus completing the focus adjustment.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] 1. In this utility model, when the long bolt is rotated, it connects to the moving plate. With the restoring force provided by the spring, the protective pad on the surface of the moving plate comes into contact with the surface of the projector. The locking nut locks the long bolt, completing the installation. When the hydraulic cylinder works, it drives the projector installed inside the positioning frame to adjust its height, thereby changing the projection distance and maintaining the image.

[0023] 2. In this utility model, depending on the size of the projector, the height of the micro cylinder inside the slot is adjusted so that the mounting frame and the focus adjustment knob are at the same level. When the threaded rod inside the rectangular frame is rotated, the moving frame moves horizontally along the guide rod, so that the protrusion contacts the focus adjustment knob. When the micro cylinder works, the focus adjustment knob is rotated by the overall movement of the rectangular frame, thereby automatically adjusting the focus, making the image clearer and facilitating the patient's rehabilitation training in conjunction with the ground image. Attached Figure Description

[0024] Figure 1 A side view structural diagram of the dynamic projection adjustment device for spinal cord rehabilitation training proposed in this utility model;

[0025] Figure 2 A partial unfolded structural diagram of the dynamic projection adjustment device for spinal cord rehabilitation training proposed in this utility model.

[0026] Figure 3 A partial sectional view of the dynamic projection adjustment device for spinal cord rehabilitation training proposed in this utility model.

[0027] Figure 4 This invention proposes a dynamic projection adjustment device for spinal cord rehabilitation training. Figure 1 Enlarged structural diagram at point A in the middle.

[0028] Legend:

[0029] 1. Mounting base; 101. Baffle; 1011. Groove; 1012. Miniature cylinder one; 1013. Mounting frame; 1014. Miniature cylinder two; 1015. Rectangular frame; 1016. Guide rod; 1017. Threaded rod; 1018. Moving frame; 1019. Protrusion; 102. Hydraulic cylinder; 1021. Positioning frame; 1022. Long groove; 1023. Moving plate; 1024. Protective pad one; 1025. Long bolt; 1026. Locking nut; 1027. Spring; 1028. Protective pad two; 2. Projector; 201. Camera; 202. Focus adjustment knob. Detailed Implementation

[0030] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0031] 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. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0032] Example 1, such as Figure 1-4 As shown, this utility model provides a dynamic projection adjustment device for spinal cord rehabilitation training, including: a mounting base 1 and a projector 2; two baffles 101, symmetrically disposed on one side surface of the mounting base 1; and a camera 201 disposed on the surface of the projector 2, with a focus adjustment knob 202 inside the projector 2; a hydraulic cylinder 102 disposed on the surface of the mounting base 1, with a positioning frame 1021 at the output end of the hydraulic cylinder 102, the positioning frame 1021 being slidably embedded inside the baffles 101, and elongated grooves 1022 formed on the symmetrical surface of the positioning frame 1021, with movable plates slidably embedded inside the two elongated grooves 1022. 1023, protective pads 1024 are provided on one end of the surface of the two movable plates 1023, and the two protective pads 1024 are provided symmetrically on the surface of the projector 2. Springs 1027 are provided on one side of the surface of the two movable plates 1023, and one end of the two springs 1027 is provided on the inner wall of the long groove 1022. Protective pads 1028 are provided on the surface of the center of one side of the positioning frame 1021, and the protective pads 1028 are provided on the surface of the projector 2. Two long bolts 1025 are threaded into the surface of the positioning frame 1021 at the symmetrical position, and one side of the two long bolts 1025 is movably connected to the surface of the movable plates 1023.

[0033] In this embodiment, when the long bolt 1025 is rotated, it connects to the moving plate 1023. With the restoring force provided by the spring 1027, the protective pad 1024 on the surface of the moving plate 1023 contacts the surface of the projector 2. The locking nut 1026 locks the long bolt 1025, completing the installation. When the hydraulic cylinder 102 works, it drives the projector 2 installed inside the positioning frame 1021 to adjust its height, thereby changing the projection distance and maintaining the image.

[0034] In Example 2, one end of two long bolts 1025 is threaded with a locking nut 1026. A slot 1011 is opened on the surface of one of the baffles 101. A miniature cylinder 1012 is arranged inside the slot 1011. A mounting frame 1013 is provided at the output end of the miniature cylinder 1012. The mounting frame 1013 is slidably embedded in the inside of the slot 1011. A miniature cylinder 2 1014 is arranged inside the mounting frame 1013. A rectangular frame 1015 is provided at the output end of the miniature cylinder 2 1014. A guide rod 1016 is fixedly arranged on the inner wall of the rectangular frame 1015. A movable frame 1018 is slidably fitted at one end of the guide rod 1016. A threaded rod 1017 is threadedly embedded on the surface of the movable frame 1018. A protrusion 1019 is provided at one end of the movable frame 1018. The surface of the protrusion 1019 is movably connected to the surface of the focus adjustment knob 202.

[0035] In this embodiment, the position of the micro cylinder 1012 inside the slot 1011 is adjusted according to the different sizes of the projector 2, so that the mounting frame 1013 and the focus adjustment knob 202 are kept at the same level. When the threaded rod 1017 inside the rectangular frame 1015 is rotated, the moving frame 1018 moves horizontally along the guide rod 1016, so that the protrusion 1019 contacts the focus adjustment knob 202. When the micro cylinder 1014 works, the focus adjustment knob 202 is rotated by the overall movement of the rectangular frame 1015, thereby automatically adjusting the focus, making the image clearer and facilitating the patient's rehabilitation training with the ground image.

[0036] Working principle: During use, the projector 2 is installed using the mounting base 1 and other parts. One side of the projector 2 is connected to the surface of the protective pad 1028. Rotating the long bolt 1025 connects it to the moving plate 1023. The spring 1027 provides a restoring force, causing the protective pad 1024 on the surface of the moving plate 1023 to contact the surface of the projector 2. The locking nut 1026 locks the long bolt 1025 in place, completing the installation. When the hydraulic cylinder 102 operates, it adjusts the height of the projector 2 installed inside the positioning frame 1021, changing the projection distance and maintaining the image. Additionally, depending on the size of the projector 2, the height of the micro cylinder 1012 inside the slot 1011 is adjusted so that the mounting frame 1013 and the focus adjustment knob 202 are at the same level. When the threaded rod 1017 inside the rectangular frame 1015 is rotated, the moving frame 1018 moves horizontally along the guide rod 1016, so that the protrusion 1019 contacts the focus adjustment knob 202. When the micro cylinder 1014 is working, the focus adjustment knob 202 is rotated by the overall movement of the rectangular frame 1015, thereby automatically adjusting the focus, making the image clearer and facilitating the patient's rehabilitation training in conjunction with the ground image.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A dynamic projection adjustment device for spinal cord rehabilitation training, comprising: Mounting base (1) and projector (2); Two baffles (101) are disposed symmetrically on one side surface of the mounting base (1); characterized in that it further includes: A camera (201) is mounted on the surface of the projector (2), and a focus adjustment knob (202) is provided inside the projector (2). A hydraulic cylinder (102) is provided on the surface of the mounting base (1). The output end of the hydraulic cylinder (102) is provided with a positioning frame (1021). The positioning frame (1021) is slidably embedded in the baffle (101). The surface of the positioning frame (1021) at the symmetrical position is provided with a long groove (1022). The two long grooves (1022) are slidably embedded with a moving plate (1023). The surface of one end of the two moving plates (1023) is provided with a protective pad (1024). The two protective pads (1024) are provided at the symmetrical position on the surface of the projector (2). A spring (1027) is provided on one side of the surface of the two moving plates (1023). One end of the two springs (1027) is provided on the inner wall of the long groove (1022). A protective pad (1028) is provided on the surface of the center of one side of the positioning frame (1021). The protective pad (1028) is provided on the surface of the projector (2). Two long bolts (1025) are threaded onto the surface of the positioning frame (1021) at symmetrical locations, and one side of the two long bolts (1025) is movably connected to the surface of the movable plate (1023).

2. The dynamic projection adjustment device for spinal cord rehabilitation training according to claim 1, characterized in that: One end of the two long bolts (1025) is threaded with a locking nut (1026), and a slot (1011) is provided on the surface of one of the baffles (101).

3. The dynamic projection adjustment device for spinal cord rehabilitation training according to claim 2, characterized in that: The slot (1011) is equipped with a miniature cylinder (1012), and the output end of the miniature cylinder (1012) is equipped with a mounting frame (1013).

4. The dynamic projection adjustment device for spinal cord rehabilitation training according to claim 3, characterized in that: The mounting frame (1013) is slidably embedded inside the slot (1011), and a miniature cylinder (1014) is provided inside the mounting frame (1013).

5. The dynamic projection adjustment device for spinal cord rehabilitation training according to claim 4, characterized in that: The output end of the miniature cylinder 2 (1014) is provided with a rectangular frame (1015), and a guide rod (1016) is fixedly provided on the inner wall of the rectangular frame (1015).

6. The dynamic projection adjustment device for spinal cord rehabilitation training according to claim 5, characterized in that: One end of the guide rod (1016) is slidably fitted with a movable frame (1018), and the surface of the movable frame (1018) is threaded with a threaded rod (1017).

7. The dynamic projection adjustment device for spinal cord rehabilitation training according to claim 6, characterized in that: One end of the movable frame (1018) is provided with a protrusion (1019), and the surface of the protrusion (1019) is movably connected to the surface of the focus adjustment knob (202).