Upper limb trainer

Abstract

The utility model discloses a kind of upper limb training devices, including support frame and training mechanism, adjusting mechanism for being used to adjust the position of training mechanism is provided on support frame, adjusting mechanism includes angle adjusting rod, height adjusting rod, screw rod, first hand wheel, second hand wheel and transmission shaft, height adjusting rod is movably installed on support frame, angle adjusting rod is movably installed at the top of height adjusting rod, first hand wheel is installed at the front end of height adjusting rod for adjusting the angle of angle adjusting rod, second hand wheel is installed at the front end of support frame by screw rod and transmission shaft cooperation for adjusting the height of height adjusting rod.The utility model has the advantages of height and angle linkage adjustment, lower limb protection and rest assistance, solves the problem of poor adaptability of traditional equipment, low training safety and inconvenience.

Description

Technical Field

[0001] This utility model relates to the field of training equipment technology, specifically an upper limb training device. Background Technology

[0002] Upper limb trainers are important rehabilitation and fitness devices used to enhance upper limb muscle strength, improve joint mobility, and promote neuromuscular function recovery. They are widely used in sports, physical training, and clinical rehabilitation. Existing upper limb trainers typically include a support frame and training mechanisms mounted on it. Users manually push or pull the training components to complete repetitive movements to achieve their training goals.

[0003] However, traditional upper limb trainers generally suffer from fixed structures and limited adjustability. Most devices have fixed training mechanisms or only offer single-directional adjustment, failing to adapt flexibly to individual differences such as height and arm length. For taller users, the training mechanism may be too low, causing them to hunch over; while for shorter users, it may result in raising their arms too high and causing shoulder tension. Furthermore, the fixed horizontal distance between the training mechanism and the body makes it difficult to match the comfortable range of motion for users with different arm lengths, easily leading to distorted movements, low training efficiency, and even sports injuries such as shoulder and elbow strains. The lack of multi-dimensional adjustability severely limits the applicable population and safety of traditional trainers. Therefore, an upper limb trainer is needed to solve these problems. Summary of the Invention

[0004] The purpose of this invention is to provide an upper limb training device that has the advantages of height and angle linkage adjustment, lower limb protection and rest assistance, and solves the problems of poor adaptability, low training safety and inconvenience of traditional equipment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an upper limb trainer, comprising a support frame and a training mechanism, wherein the support frame is provided with an adjustment mechanism for adjusting the position of the training mechanism; The adjustment mechanism includes an angle adjustment rod, a height adjustment rod, a lead screw, a first handwheel, a second handwheel, and a drive shaft. The height adjustment rod is movably mounted on the support frame, and the angle adjustment rod is movably mounted on the top of the height adjustment rod. The first handwheel is mounted on the front end of the height adjustment rod for adjusting the angle of the angle adjustment rod. The second handwheel is mounted on the front end of the support frame and, through the cooperation of the lead screw and the drive shaft, is used to adjust the height of the height adjustment rod.

[0006] Preferably, the upper end face of the support frame is provided with a sliding groove that slides with the height adjustment rod, a lead screw that is rotatably connected is provided in the sliding groove, and a screw hole that mates with the lead screw is provided at the bottom of the height adjustment rod.

[0007] Preferably, the drive shaft is mounted on the support frame and rotatably connected thereto, the second handwheel is fixedly mounted on the front end of the drive shaft, a first bevel gear is provided at the bottom of the lead screw, and a second bevel gear that meshes with the first bevel gear is provided on the drive shaft.

[0008] Preferably, the bottom of the angle adjusting rod is provided with a fixedly connected rotating shaft, the top of the height adjusting rod is provided with a shaft hole that is rotatably connected to the rotating shaft, the side end face of the height adjusting rod is provided with a worm gear that is rotatably connected, the rotating shaft is fixedly connected with a worm wheel that cooperates with the worm gear, and the first handwheel is fixedly installed on the worm gear.

[0009] Preferably, the training mechanism includes an S-shaped link and a counterweight plate. The left and right ends of the S-shaped link are rotatably connected to an angle adjustment rod. The counterweight plate is fixedly installed on the left and right ends of the S-shaped link. A handle is provided on the S-shaped link.

[0010] Preferably, the upper end face of the support frame is provided with a leg positioning groove, which is an arc-shaped groove.

[0011] Preferably, a rotatably connected leg guard plate is provided in the leg positioning groove, and the leg guard plate has an arc-shaped structure.

[0012] Preferably, the side end face of the leg guard is provided with a finger groove.

[0013] Preferably, the support frame is provided with a seat; the upper end surface of the support frame is provided with a handle.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model achieves flexible adjustment of the height and angle of the training mechanism through the use of height adjustment rods and angle adjustment rods in conjunction with components such as lead screws and handwheels. The height adjustment rod slides up and down in the groove of the support frame via lead screw transmission, and is synchronously controlled by the second handwheel driving the transmission shaft and bevel gear set, enabling the training mechanism to be precisely raised and lowered according to the user's height. The angle adjustment rod drives the worm gear and worm wheel mechanism through the first handwheel to rotate around the pivot to adjust the tilt angle, thereby changing the horizontal distance between the training mechanism and the user. This design solves the problem of limited applicability caused by the fixed position of traditional training equipment, allowing users of different heights and arm lengths to find the most suitable training posture. This not only improves the versatility of the equipment, but also enhances training comfort and efficiency, and avoids muscle strain or poor training results caused by improper posture.

[0015] 2. This utility model, through the leg positioning groove on the support frame and the rotatable leg guard structure, effectively ensures the stability of the user's lower limbs during training. The leg positioning groove is designed with an arc shape, which can conform to the curve of the user's leg for positioning, ensuring a standard standing posture. The leg guard can be opened and closed by rotating the groove. When closed, it can prevent the user's lower limbs from buckling or the knees from bending backward and falling. The finger groove design allows the user to manually adjust the position of the guard. This comprehensive design solves common safety hazards in training, such as the risk of falling due to fatigue or lack of balance, ensuring that the user maintains a stable posture under high-intensity training, thereby improving training effect and protection capability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a top view of the present invention; Figure 3 For the present utility model Figure 2 Sectional view of AA in the middle; Figure 4 For the present utility model Figure 3 Enlarged view at point B in the middle; Figure 5 For the present utility model Figure 3 Enlarged view of point C in the middle.

[0017] In the diagram: 1. Support frame; 101. Leg positioning groove; 102. Seat; 103. Leg guard plate; 104. Handle; 105. Finger groove; 106. Slide groove; 2. Training mechanism; 201. Counterweight plate; 202. S-shaped connecting rod; 203. Grip; 3. Adjustment mechanism; 301. Angle adjustment rod; 302. Height adjustment rod; 303. Lead screw; 304. First handwheel; 305. Second handwheel; 306. Drive shaft; 307. Shaft hole; 308. Rotating shaft; 309. Worm gear; 310. Worm; 311. Screw hole; 312. First bevel gear; 313. Second bevel gear. Detailed Implementation

[0018] Please see Figures 1-5 An upper limb training device includes a support frame 1 and a training mechanism 2. The support frame 1 is provided with an adjustment mechanism 3 for adjusting the position of the training mechanism 2. The adjustment mechanism 3 includes an angle adjustment rod 301, a height adjustment rod 302, a lead screw 303, a first handwheel 304, a second handwheel 305, and a drive shaft 306. The height adjustment rod 302 is movably mounted on the support frame 1, and the angle adjustment rod 301 is movably mounted on the top of the height adjustment rod 302. The first handwheel 304 is mounted on the front end of the height adjustment rod 302 for adjusting the angle of the angle adjustment rod 301. The second handwheel 305 is mounted on the front end of the support frame 1 and is used to adjust the height of the height adjustment rod 302 through the cooperation of the lead screw 303 and the drive shaft 306.

[0019] Furthermore, the upper end face of the support frame 1 is provided with a slide groove 106 that slides with the height adjustment rod 302. A lead screw 303 is rotatably connected in the slide groove 106. The bottom of the height adjustment rod 302 is provided with a screw hole 311 that mates with the lead screw 303.

[0020] By rotating the lead screw 303, the height adjustment rod 302 slides up and down under the action of the lead screw 303, thereby adjusting the height of the top training mechanism 2 to accommodate people of different heights and improve the applicability of the trainer.

[0021] Furthermore, the drive shaft 306 is mounted on the support frame 1 and rotatably connected thereto. The second handwheel 305 is fixedly mounted on the front end of the drive shaft 306. The bottom of the lead screw 303 is provided with a first bevel gear 312, and the drive shaft 306 is provided with a second bevel gear 313 that meshes with the first bevel gear 312.

[0022] By rotating the second handwheel 305, the transmission shaft 306 is driven to rotate. Through the cooperation of the first bevel gear 312 and the second bevel gear 313, the two sets of lead screws 303 are driven to rotate synchronously, thereby driving the two sets of height adjustment rods 302 to slide up and down synchronously, so as to realize the height adjustment of the training mechanism 2.

[0023] Furthermore, the bottom of the angle adjusting rod 301 is provided with a fixedly connected rotating shaft 308, the top of the height adjusting rod 302 is provided with a shaft hole 307 that is rotatably connected to the rotating shaft 308, the side end face of the height adjusting rod 302 is provided with a rotatably connected worm gear 310, the rotating shaft 308 is fixedly connected with a worm wheel 309 that cooperates with the worm gear 310, and the first handwheel 304 is fixedly installed on the worm gear 310.

[0024] The first handwheel 304 drives the worm gear 310 to rotate. Under the action of the worm gear 310 and the worm wheel 309, the angle adjustment rod 301 rotates around the rotating shaft 308, thereby adjusting the tilt angle of the angle adjustment rod 301 and changing the horizontal distance between the training mechanism 2 and the user, so as to adapt to users with different arm lengths.

[0025] Furthermore, the training mechanism 2 includes an S-shaped link 202 and a counterweight plate 201. The left and right ends of the S-shaped link 202 are rotatably connected to the angle adjustment rod 301. The counterweight plate 201 is fixedly installed on the left and right ends of the S-shaped link 202. A handle 203 is provided on the S-shaped link 202.

[0026] By alternately pushing the handle 203 with the left and right hands, the S-shaped connecting rod 202 is driven to roll, thereby achieving the purpose of upper limb training. The counterweight plate 201 increases the counterweight, increases the frictional resistance, and increases the intensity of the exercise.

[0027] Furthermore, the upper end face of the support frame 1 is provided with a leg positioning groove 101, which is an arc-shaped groove.

[0028] The leg positioning groove 101 positions the user's legs, thereby enabling the patient to maintain a relatively standard standing posture and improving the training effect.

[0029] Furthermore, a leg guard plate 103 with a rotatable connection is provided in the leg positioning groove 101, and the leg guard plate 103 has an arc-shaped structure.

[0030] By rotating the leg guard 103, the opening and closing of the leg positioning groove 101 can be adjusted. When the leg guard 103 blocks the opening of the leg positioning groove 101, the leg positioning groove 101 closes, thereby preventing the user's lower limbs from buckling, causing the knees to bend and the user to fall backward, thus improving the protective effect. When the leg guard 103 no longer blocks the opening of the leg positioning groove 101, the user's legs can freely enter and exit the leg positioning groove 101.

[0031] Furthermore, the side end face of the leg guard 103 is provided with a finger groove 105.

[0032] The finger groove 105 allows users to easily grip the leg guard 103 with their fingers and rotate it, thus facilitating the adjustment of the position of the leg guard 103.

[0033] Furthermore, a seat 102 is provided on the support frame 1.

[0034] The seat 102 allows users to sit down briefly to rest when they are tired from training, without having to frequently adjust the leg guards 103 to get in and out, thus improving the convenience and comfort of the user.

[0035] Furthermore, a handle 104 is provided on the upper end surface of the support frame 1.

[0036] Users can adjust from a sitting to a standing position by gripping the handles 203 and 104, avoiding insufficient lower back strength that could prevent them from standing and thus affect their training.

[0037] When using this device, first, place your legs into the arc-shaped leg positioning groove 101 on the upper surface of the support frame 1. Then, use your fingers to grip the finger groove 105 on the side surface of the leg guard 103 and rotate the leg guard 103 so that it covers the opening of the leg positioning groove 101, thus completing the leg positioning to maintain a standard sitting posture. By grasping the handle 104 on the upper surface of the support frame 1, you can adjust from a sitting posture to a standing posture with the support of the handle 104. Then, the staff will position the training mechanism 2. When adjusting the height, rotate the second handwheel 305 mounted on the front end of the support frame 1. The second handwheel 305 drives the transmission shaft 306 fixedly connected to it to rotate. The transmission shaft 306, through the second bevel gear 313 on it, meshes with the first bevel gear 312 at the bottom of the lead screw 303, driving the two sets of lead screws 303 to rotate synchronously in the slide groove 106 of the support frame 1. The lead screw 303 engages with the screw hole 311 at the bottom of the height adjustment rod 302, causing the height adjustment rod 302 to move upward within the slide groove 106. Slide down to adjust the training mechanism 2 to a height suitable for your own height; when adjusting the angle, rotate the first handwheel 304 installed at the front end of the height adjustment rod 302. The first handwheel 304 drives the worm gear 310 on the side end face of the height adjustment rod 302 to rotate. The worm gear 310 cooperates with the worm wheel 309 on the bottom rotating shaft 308 of the angle adjustment rod 301 to drive the angle adjustment rod 301 to rotate around the shaft hole 307 at the top of the height adjustment rod 302, adjusting the training mechanism 2 to a horizontal distance suitable for your own arm length. After the adjustment is completed, you can make a slight adjustment to the height. After the position adjustment is completed, hold the handle 203 on the S-shaped connecting rod of the training mechanism 2 with both hands. By alternately pushing the handle 203 with your left and right hands, you can drive the S-shaped connecting rod to roll. The counterweight plates 201 fixed at the left and right ends of the S-shaped connecting rod provide frictional resistance to achieve upper limb training. If you feel tired during the training, you do not need to adjust the leg guard 103. You can sit directly on the seat 102 for a short rest. After the rest, you can continue training.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An upper limb training device, comprising a support frame (1) and a training mechanism (2), characterized in that: The support frame (1) is provided with an adjustment mechanism (3) for adjusting the position of the training mechanism (2); The adjustment mechanism (3) includes an angle adjustment rod (301), a height adjustment rod (302), a lead screw (303), a first handwheel (304), a second handwheel (305), and a transmission shaft (306). The height adjustment rod (302) is movably mounted on the support frame (1). The angle adjustment rod (301) is movably mounted on the top of the height adjustment rod (302). The first handwheel (304) is mounted at the front end of the height adjustment rod (302) to adjust the angle of the angle adjustment rod (301). The second handwheel (305) is mounted at the front end of the support frame (1) and is used to adjust the height of the height adjustment rod (302) through the cooperation of the lead screw (303) and the transmission shaft (306).

2. The upper limb training device according to claim 1, characterized in that: The upper end face of the support frame (1) is provided with a sliding groove (106) that slides with the height adjustment rod (302). A screw rod (303) is provided in the sliding groove (106) and rotatedly connected. The bottom of the height adjustment rod (302) is provided with a screw hole (311) that mates with the screw rod (303).

3. The upper limb training device according to claim 2, characterized in that: The drive shaft (306) is mounted on the support frame (1) and rotatably connected thereto. The second handwheel (305) is fixedly mounted on the front end of the drive shaft (306). The bottom of the lead screw (303) is provided with a first bevel gear (312), and the drive shaft (306) is provided with a second bevel gear (313) that meshes with the first bevel gear (312).

4. The upper limb training device according to claim 1, characterized in that: The bottom of the angle adjusting rod (301) is provided with a fixedly connected rotating shaft (308), the top of the height adjusting rod (302) is provided with a shaft hole (307) rotatably connected to the rotating shaft (308), the side end face of the height adjusting rod (302) is provided with a rotatably connected worm gear (310), the rotating shaft (308) is fixedly connected with a worm wheel (309) that cooperates with the worm gear (310), and the first handwheel (304) is fixedly installed on the worm gear (310).

5. An upper limb training device according to claim 1, characterized in that: The training mechanism (2) includes an S-shaped link (202) and a counterweight plate (201). The left and right ends of the S-shaped link (202) are rotatably connected to the angle adjustment rod (301). The counterweight plate (201) is fixedly installed on the left and right ends of the S-shaped link (202). A handle (203) is provided on the S-shaped link (202).

6. An upper limb training device according to claim 1, characterized in that: The upper end face of the support frame (1) is provided with a leg positioning groove (101), which is an arc-shaped groove.

7. An upper limb training device according to claim 6, characterized in that: The leg positioning groove (101) is provided with a rotatably connected leg guard plate (103), and the leg guard plate (103) has an arc-shaped structure.

8. An upper limb training device according to claim 7, characterized in that: The leg guard plate (103) has a finger groove (105) on its side end face.

9. An upper limb training device according to claim 1, characterized in that: The support frame (1) is provided with a seat (102), and the upper end face of the support frame (1) is provided with a handle (104).

Images