Automatic adjustment structure of treadmill

Abstract

The present invention relates to the technical field of treadmills, and discloses an automatic adjustment structure for a treadmill, comprising a base, a connecting base fixedly mounted on both sides of one end of the base, a supporting base fixedly mounted on both sides of the other end of the base, a movable frame rotatably mounted on the inner side of the connecting base via a bearing, and a supporting frame fixedly mounted on the upper end of the supporting base. The automatic adjustment structure for a treadmill is provided with a driving mechanism, which drives a running belt through a servo motor 1 for transmission, a control box is provided at the front side of the running belt, a flipping mechanism is provided between the control box and the running belt, and the running belt is flipped by a servo motor 2 to achieve automatic adjustment of the inclination angle of the treadmill, a sensing mechanism is provided inside the running board, which can detect the position of the user on the treadmill, and when the user deviates from the center position of the running belt, a signal is sent to reduce or increase the speed of the servo motor 1, so that the user is always located at the center position of the treadmill, thereby preventing the user from falling off the treadmill and improving safety.

Description

Technical Field

[0001] The present invention relates to the technical field of treadmills, in particular to an automatic adjustment structure of a treadmill. Background Art

[0002] Treadmills are common fitness equipment in homes and gyms. They are the simplest type of home fitness equipment today and the best choice for home fitness equipment. Treadmills are mainly composed of a continuously rotating running belt and a running board that supports the user.

[0003] Nowadays, the belt speed of most treadmills is fixed and can only be adjusted by the user manually shifting up or down. When the user just starts running or after running for a period of time, the user will deviate from the center position of the treadmill and may fall off the treadmill, which is unsafe. Summary of the Invention

[0004] (1) Technical problems solved

[0005] The object of the present invention is to provide an automatic adjustment structure for a treadmill to solve the problem in the above-mentioned background art that the speed of the running belt of most treadmills is fixed and can only be adjusted by the user manually shifting up or down. When the user just starts running or after running for a period of time, the user will deviate from the center position of the treadmill and may fall off the treadmill, resulting in poor safety.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a treadmill automatic adjustment structure, comprising a base, a connecting base fixedly mounted on both sides of one end of the base, a supporting base fixedly mounted on both sides of the other end of the base, a movable frame rotatably mounted on the inner side of the connecting base through a bearing, a supporting frame fixedly mounted on the upper end of the supporting base, a control panel fixedly mounted on the inner side of the upper end of the supporting frame, a handle fixedly mounted on the outer side of the supporting frame, a running board fixedly mounted on the inside of the movable frame, an active roller and a driven roller rotatably mounted on the inside of the movable frame, The outer sides of the active roller and the driven roller are connected to the running belt through transmission, and a driving mechanism is arranged inside the movable frame, and the driving mechanism includes sprocket 1, servo motor 1, sprocket 2 and a transmission chain, and a control box is fixedly installed on the upper end of the base, and a flip mechanism is arranged between the control box and the movable frame, and the flip mechanism includes a guide rod, a screw rod, a movable plate, servo motor 2, gear 1, gear 2, a connecting frame, a waist-shaped groove and a fixed rod, and a sensing mechanism is arranged inside the running board, and the sensing mechanism includes a groove, a connecting shaft, a pressure plate, a spring, a mounting plate and a pressure sensor.

[0008] Preferably, the support frame is an inclined structure, and two handles are symmetrically provided on one side of the support frame close to the connecting seat, and the handles play a supporting role for the user.

[0009] Preferably, the active roller is located on the side of the running board close to the support seat, and the driven roller is located on the side of the running board close to the connecting seat. The specifications of the active roller are the same as those of the driven roller, and the active roller and the driven roller rotate on both sides of the running board.

[0010] Preferably, the sprocket 1 is fixedly mounted on the outside of the active roller, the servo motor 1 is fixedly mounted inside the movable frame, the sprocket 2 is fixedly mounted on the output end of the servo motor 1, the transmission chain is meshed and connected to the outside of the sprocket 1 and the sprocket 2, the servo motor 1 is electrically connected to the control panel, the servo motor 1 drives the sprocket 2 to rotate, the sprocket 2 drives the sprocket 1 to rotate through the transmission chain, the sprocket 1 drives the active roller to rotate, and the active roller drives the running belt to transmit.

[0011] Preferably, the control box is located on a side of the movable frame close to the support seat, the guide rod is fixedly installed inside the control box, the screw rod is rotatably installed inside the control box through a bearing, and one guide rod is provided on each side of the screw rod. The movable plate is movably installed on the outside of the guide rod, and the movable plate is threadedly connected to the outside of the screw rod. The guide rod guides the movable plate, and when the screw rod rotates, the movable plate is driven up and down by the thread.

[0012] Preferably, the servo motor 2 is fixedly mounted inside the control box, the gear 1 is fixedly mounted on the output end of the servo motor 2, the gear 2 is fixedly mounted on the outer side of the upper end of the screw rod, the gear 1 and gear 2 are meshingly connected, the connecting frame is fixedly mounted on the outer side of the movable plate, the waist-shaped groove is opened inside the connecting frame, the fixed rod is fixedly mounted on the inside of the movable frame through the bracket, the fixed rod is fit with the inner side of the waist-shaped groove, the servo motor 2 is electrically connected to the control panel, the servo motor 2 drives the gear 1 to rotate, the gear 1 drives the gear 2 to rotate, the screw rod rotates with the gear 2, the connecting frame rises and falls with the movable plate, the connecting frame drives the fixed rod to move, the fixed rod slides along the waist-shaped groove, one end of the movable frame moves with the fixed rod, and the other end of the movable frame rotates along the inner side of the connecting seat to realize the inclination angle adjustment of the treadmill.

[0013] Preferably, the groove is opened at the upper end of the running board, the connecting shaft is rotatably installed inside the groove through a bearing, the pressure plate is fixedly installed on the outside of the connecting shaft, and the connecting shaft is located inside the pressure plate. When the two ends of the pressure plate are subjected to pressure, they rotate along the connecting shaft.

[0014] Preferably, the springs are symmetrically arranged in plurality inside the lower end of the pressure plate, the mounting plate is fixedly mounted at both ends of the pressure plate, the pressure sensor is fixedly mounted at the lower end inside the groove, the probe of the pressure sensor is fixedly mounted at the lower end of the mounting plate, the pressure sensor is electrically connected to the control panel, the spring resets the pressure plate, and the pressure sensor detects the pressure at both ends of the pressure plate. When the pressure at both ends of the pressure plate increases, a signal is sent to reduce or increase the speed of the servo motor. The pressure sensor adopts the TSK-310 direct lead pressure transmitter sensor.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the treadmill automatic adjustment structure is provided with a driving mechanism, which drives the running belt for transmission through servo motor 1, a control box is provided on the front side of the running belt, and a flipping mechanism is provided between the control box and the running belt, which drives the running belt to flip through servo motor 2, thereby realizing automatic adjustment of the treadmill's inclination angle, and a sensing mechanism is provided inside the running board to detect the user's position on the treadmill. When the user deviates from the center position of the running belt, a signal is sent to reduce or increase the speed of servo motor 1, so that the user is always in the center position of the treadmill, avoiding the user from falling from the treadmill and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 The present invention is a schematic diagram of the three-dimensional structure of the movable frame Figure 1 ;

[0018] Figure 3 The present invention is a schematic diagram of the three-dimensional structure of the movable frame Figure 2 ;

[0019] Figure 4 This is a schematic diagram of the top view of the movable frame of the present invention;

[0020] Figure 5 Schematic diagram of the internal structure of the present invention;

[0021] Figure 6 For the present invention Figure 2 A in the middle is an enlarged structural diagram;

[0022] Figure 7 For the present invention Figure 5 The enlarged structural diagram at B in the middle;

[0023] Figure 8 For the present invention Figure 5 Enlarged structural diagram at point C in the middle.

[0024] Among them: 1. Base; 2. Connecting seat; 3. Support seat; 4. Movable frame; 5. Support frame; 6. Control panel; 7. Handle; 8. Running board; 9. Active roller; 10. Driven roller; 11. Running belt; 12. Driving mechanism; 1201. Sprocket 1; 1202. Servo motor 1; 1203. Sprocket 2; 1204. Transmission chain; 13. Control box; 14. Flipping mechanism; 1401. Guide rod; 1402. Screw rod; 1403. Movable plate; 1404. Servo motor 2; 1405. Gear 1; 1406. Gear 2; 1407. Connecting frame; 1408. Waist-shaped groove; 1409. Fixed rod; 15. Sensing mechanism; 1501. Groove; 1502. Connecting shaft; 1503. Pressure plate; 1504. Spring; 1505. Mounting plate; 1506. Pressure sensor. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-8The present invention provides a technical solution: an automatic adjustment structure of a treadmill, comprising a base 1, a connecting base 2 is fixedly installed on both sides of one end of the base 1, a supporting base 3 is fixedly installed on both sides of the other end of the base 1, a movable frame 4 is rotatably installed on the inner side of the connecting base 2 through a bearing, a supporting frame 5 is fixedly installed on the upper end of the supporting base 3, a control panel 6 is fixedly installed on the inner side of the upper end of the supporting frame 5, a handle 7 is fixedly installed on the outer side of the supporting frame 5, the supporting frame 5 is an inclined structure, and two handles 7 are symmetrically arranged on the side of the supporting frame 5 close to the connecting base 2, a running board 8 is fixedly installed inside the movable frame 4, an active roller 9 and a driven roller 10 are rotatably installed inside the movable frame 4, the active roller 9 is located on the side of the running board 8 close to the support base 3, and the driven roller 10 is located on the side of the running board 8 close to the connecting base 2, the specifications of the active roller 9 are the same as those of the driven roller 10, and the outer sides of the active roller 9 and the driven roller 10 are transmission-connected with a running belt 11 , a driving mechanism 12 is provided inside the movable frame 4, and the driving mechanism 12 includes a sprocket 1201, a servo motor 1202, a sprocket 2 1203 and a transmission chain 1204. The sprocket 1201 is fixedly mounted on the outside of the active roller 9, the servo motor 1202 is fixedly mounted on the inside of the movable frame 4, the sprocket 2 1203 is fixedly mounted on the output end of the servo motor 1202, and the transmission chain 1204 is meshed and connected to the outside of the sprocket 1201 and the sprocket 2 1203. The servo motor 1202 is electrically connected to the control panel 6. The handle 7 supports the user. The active roller 9 and the driven roller 10 rotate on both sides of the running board 8. The servo motor 1202 drives the sprocket 2 1203 to rotate. The sprocket 2 1203 drives the sprocket 1201 to rotate through the transmission chain 1204. The sprocket 1201 drives the active roller 9 to rotate, and the active roller 9 drives the running belt 11 to transmit.

[0027] The upper end of the base 1 is fixedly mounted with a control box 13, which is located on the side of the movable frame 4 close to the support base 3. A flip mechanism 14 is provided between the control box 13 and the movable frame 4. The flip mechanism 14 includes a guide rod 1401, a screw rod 1402, a movable plate 1403, a servo motor 2 1404, a gear 1 1405, a gear 2 1406, a connecting frame 1407, a waist groove 1408 and a fixed rod 1409. The guide rod 1401 is fixedly mounted inside the control box 13, the screw rod 1402 The guide rod 1401 is rotatably mounted on the inside of the control box 13 through a bearing, and one is provided on each side of the screw rod 1402. The movable plate 1403 is movably mounted on the outside of the guide rod 1401. The movable plate 1403 is threadedly connected to the outside of the screw rod 1402. The servo motor 2 1404 is fixedly mounted on the inside of the control box 13. The gear 1 1405 is fixedly mounted on the output end of the servo motor 2 1404. The gear 2 1406 is fixedly mounted on the outside of the upper end of the screw rod 1402. The gear 1 140 5 is meshedly connected with the second gear 1406, the connecting frame 1407 is fixedly installed on the outside of the movable plate 1403, the waist-shaped groove 1408 is opened inside the connecting frame 1407, the fixed rod 1409 is fixedly installed inside the movable frame 4 through the bracket, and the fixed rod 1409 is in contact with the inner side of the waist-shaped groove 1408. The servo motor 1404 is electrically connected to the control panel 6. The guide rod 1401 guides the movable plate 1403. When the screw rod 1402 rotates, it drives the movable plate 1403 through the thread. To move up and down, servo motor 2 1404 drives gear 1 1405 to rotate, gear 1 1405 drives gear 2 1406 to rotate, screw rod 1402 rotates with gear 2 1406, connecting frame 1407 rises and falls with movable plate 1403, connecting frame 1407 drives fixed rod 1409 to move, fixed rod 1409 slides along waist-shaped groove 1408, one end of movable frame 4 moves with fixed rod 1409, and the other end of movable frame 4 rotates along the inner side of connecting base 2 to adjust the inclination angle of the treadmill;

[0028] The running board 8 is provided with a sensing mechanism 15 inside, which includes a groove 1501, a connecting shaft 1502, a pressure plate 1503, a spring 1504, a mounting plate 1505 and a pressure sensor 1506. The groove 1501 is opened at the upper end of the running board 8, and the connecting shaft 1502 is rotatably mounted inside the groove 1501 through a bearing. The pressure plate 1503 is fixedly mounted on the outside of the connecting shaft 1502, and the connecting shaft 1502 is located inside the pressure plate 1503. A plurality of springs 1504 are symmetrically arranged inside the lower end of the pressure plate 1503. The mounting plate 1505 is fixedly mounted at both ends of the pressure plate 1503. The pressure sensor 1506 is provided with a sensing mechanism 1501. 6 is fixedly installed at the lower end of the groove 1501, and the probe of the pressure sensor 1506 is fixedly installed at the lower end of the mounting plate 1505. The pressure sensor 1506 is electrically connected to the control panel 6. When the two ends of the pressure plate 1503 are subjected to pressure, they rotate along the connecting shaft 1502, and the spring 1504 resets the pressure plate 1503. The pressure sensor 1506 detects the pressure at both ends of the pressure plate 1503. When the pressure at both ends of the pressure plate 1503 increases, a signal is sent to reduce or increase the speed of the servo motor 1202. The pressure sensor 1506 adopts the TSK-310 direct lead pressure transmitter sensor.

[0029] Working principle: First, the user steps on the tread belt 11 and turns on the servo motor 1 1202 through the control panel 6. The servo motor 1 1202 drives the sprocket 2 1203 to rotate. The sprocket 2 1203 drives the sprocket 1 1201 to rotate through the transmission chain 1204. The sprocket 1 1201 drives the active roller 9 to rotate. The active roller 9 drives the tread belt 11 to transmit. When the user runs on the tread belt 11 and needs to change the slope, the servo motor 2 1404 is turned on through the control panel 6. Servo motor 2 1404 drives gear 1 1405 to rotate, gear 1 1405 drives gear 2 1406 to rotate, screw rod 1402 rotates with gear 2 1406, guide rod 1401 guides movable plate 1403, screw rod 1402 rotates and drives movable plate 1403 to move up and down through thread, connecting frame 1407 moves up and down with movable plate 1403, connecting frame 1407 drives fixed rod 1409 to move, fixed rod 1409 slides along waist groove 1408 When the user runs to the front or rear side of the running belt 11, the two ends of the pressure plate 1503 are subjected to pressure and rotate along the connecting shaft 1502. The spring 1504 resets the pressure plate 1503, and the pressure sensor 1506 detects the pressure at both ends of the pressure plate 1503. When the pressure of the pressure plate 1503 near one end of the support seat 3 increases to a preset value, a signal is sent to increase the speed of the servo motor 1202, so that the user moves to the center position of the upper end of the running belt 11. When the pressure of the pressure plate 1503 near one end of the connecting seat 2 increases to a preset value, a signal is sent to reduce the speed of the servo motor 1202, and start the servo motor 2 1404 to make the output end rotate in the opposite direction. The slope of the treadmill is reduced, so that the user moves to the center position of the upper end of the running belt 11, which can prevent the user from falling off the treadmill.

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A treadmill automatic adjustment structure, comprising a base (1), characterized in that: A connecting seat (2) is fixedly mounted on both sides of one end of the base (1), a supporting seat (3) is fixedly mounted on both sides of the other end of the base (1), a movable frame (4) is rotatably mounted on the inner side of the connecting seat (2) via a bearing, a supporting frame (5) is fixedly mounted on the upper end of the supporting seat (3), a control panel (6) is fixedly mounted on the inner side of the upper end of the supporting frame (5), a handle (7) is fixedly mounted on the outer side of the supporting frame (5), a running board (8) is fixedly mounted on the inner side of the movable frame (4), an active roller (9) and a driven roller (10) are rotatably mounted on the inner side of the movable frame (4), and the outer transmission shafts of the active roller (9) and the driven roller (10) are fixedly mounted on the inner side of the movable frame (4). A running belt (11) is connected, and a driving mechanism (12) is provided inside the movable frame (4), and the driving mechanism (12) includes a sprocket 1 (1201), a servo motor 1 (1202), a sprocket 2 (1203) and a transmission chain (1204). A control box (13) is fixedly installed on the upper end of the base (1), and a flip mechanism (14) is provided between the control box (13) and the movable frame (4), and the flip mechanism (14) includes a guide rod (1401), a screw rod (1402), a movable plate (1403), a servo motor 2 (1404), a gear 1 (1405), a gear 2 (1406), a connecting frame (1407), and a connecting frame (1408). ), waist-shaped groove (1408) and fixed rod (1409), the connecting frame (1407) rises and falls with the movable plate (1403), the connecting frame (1407) drives the fixed rod (1409) to move, the fixed rod (1409) slides along the waist-shaped groove (1408), one end of the movable frame (4) moves with the fixed rod (1409), and the other end of the movable frame (4) rotates along the inner side of the connecting seat 2 to achieve the adjustment of the inclination angle of the running board (8); the inside of the running board (8) is provided with a sensing mechanism (15), the sensing mechanism (15) includes a groove (1501), a connecting shaft (150 2) a pressure plate (1503), a spring (1504), a mounting plate (1505) and a pressure sensor (1506); the two ends of the pressure plate (1503) are subjected to pressure and rotate along the connecting shaft (1502); the spring (1504) resets the pressure plate (1503); the pressure sensor (1506) detects the pressure at the two ends of the pressure plate (1503); when the pressure of the pressure plate (1503) close to one end of the support seat (3) reaches a preset value, a signal is sent to increase the rotation speed of the servo motor (1202), so that the user moves to the center position of the upper end of the running belt (11);When the pressure of the pressure plate (1503) close to one end of the connecting seat (2) is increased to a preset value, a signal is sent to reduce the speed of the servo motor 1 (1202), and start the servo motor 2 (1404), so that the output end rotates in the opposite direction, and the slope of the running board (8) is reduced, so that the user moves to the center position of the upper end of the running belt (11); the servo motor 2 (1404) is fixedly installed inside the control box (13), the gear 1 (1405) is fixedly installed on the output end of the servo motor 2 (1404), and the gear 2 (1 406) is fixedly mounted on the outer side of the upper end of the screw rod (1402), the gear 1 (1405) and the gear 2 (1406) are meshedly connected, the connecting frame (1407) is fixedly mounted on the outer side of the movable plate (1403), the waist-shaped groove (1408) is opened inside the connecting frame (1407), the fixed rod (1409) is fixedly mounted inside the movable frame (4) through a bracket, the fixed rod (1409) is fitted with the inner side of the waist-shaped groove (1408), and the servo motor 2 (1404) is electrically connected to the control panel (6).

2. The automatic adjustment structure of a treadmill according to claim 1, characterized in that: The support frame (5) is an inclined structure, and two handles (7) are symmetrically provided on one side of the support frame (5) close to the connecting seat (2).

3. The automatic adjustment structure of a treadmill according to claim 1, characterized in that: The active roller (9) is located on the side of the running board (8) close to the support seat (3), and the driven roller (10) is located on the side of the running board (8) close to the connecting seat (2). The specifications of the active roller (9) are the same as those of the driven roller (10).

4. The automatic adjustment structure of a treadmill according to claim 1, characterized in that: The sprocket 1 (1201) is fixedly mounted on the outside of the active roller (9), the servo motor 1 (1202) is fixedly mounted inside the movable frame (4), the sprocket 2 (1203) is fixedly mounted on the output end of the servo motor 1 (1202), the transmission chain (1204) is meshedly connected to the outside of the sprocket 1 (1201) and the sprocket 2 (1203), and the servo motor 1 (1202) is electrically connected to the control panel (6).

5. The automatic adjustment structure of a treadmill according to claim 1, characterized in that: The control box (13) is located on a side of the movable frame (4) close to the support seat (3); the guide rod (1401) is fixedly installed inside the control box (13); the screw rod (1402) is rotatably installed inside the control box (13) through a bearing; one of the guide rods (1401) is provided on each side of the screw rod (1402); the movable plate (1403) is movably installed on the outside of the guide rod (1401); and the movable plate (1403) is threadedly connected to the outside of the screw rod (1402).

6. The automatic adjustment structure of a treadmill according to claim 1, characterized in that: The groove (1501) is opened at the upper end of the running board (8), the connecting shaft (1502) is rotatably mounted inside the groove (1501) via a bearing, the pressing plate (1503) is fixedly mounted on the outside of the connecting shaft (1502), and the connecting shaft (1502) is located inside the pressing plate (1503).

7. The automatic adjustment structure of a treadmill according to claim 1, characterized in that: A plurality of springs (1504) are symmetrically arranged inside the lower end of the pressure plate (1503), the mounting plate (1505) is fixedly mounted at both ends of the pressure plate (1503), the pressure sensor (1506) is fixedly mounted at the lower end inside the groove (1501), the probe of the pressure sensor (1506) is fixedly mounted at the lower end of the mounting plate (1505), and the pressure sensor (1506) is electrically connected to the control panel (6).

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