Treadmill strength detection equipment and detection process thereof

Abstract

The invention discloses treadmill strength detection equipment and a detection process thereof. The treadmill strength detection equipment comprises a base and a simulation unit, the simulation unit comprises a rotating shaft and eccentric wheels symmetrically arranged on the rotating shaft, and each eccentric wheel is coated with an elastic deformable material; the running machine comprises a running frame and a running belt, and a detection unit is arranged on the running frame; the detection unit comprises a positioning shaft and a plurality of detection pieces movably arranged on the positioning shaft, the detection pieces are provided with a plurality of liquid spraying holes, and the positioning shaft is provided with first liquid injection holes connected with the liquid spraying holes in the moved detection pieces; the first liquid injection hole is connected with a liquid injection box, and a liquid level monitoring meter is arranged on the liquid injection box; through the design of the eccentric wheel and the elastic coating layer, the combined stress of a human body during running is accurately reproduced, and the error of load simulation is greatly reduced; meanwhile, the contact consistency of running belt deformation detection is ensured through dynamic pressure adjustment of the elastic piece, and the precision of running belt inner surface detection is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of treadmill testing equipment, and in particular to a treadmill strength detection device and its detection process. Background Art

[0002] A massage walking machine refers to a treadmill with bump-type massage protrusions provided on the running board. Currently, when a massage treadmill uses a massage surface for massage, it has a greater impact on the deformation of the running belt. Therefore, manufacturers usually need to conduct durability tests on the running belt.

[0003] Currently, the industry generally adopts the mechanical pressing block intermittent pressing method, and uses a rigid indenter with a preset frequency to apply local pressure to the running belt to simulate the movement of a person walking and massaging; however, this method has significant defects: 1. Backward detection means: It relies on manual shutdown and disassembly, and then uses visual inspection or a contact thickness gauge to evaluate the deformation, resulting in many measurement blind spots; sometimes manual measurement will miss many measurement points or deformation points, making it difficult to determine the entire deformation area on the inner side of the running belt, affecting the final detection error; 2. Subjective error: The operator has an error in the judgment standard of the "deformation area", and the measurement error is large when the running belt is in the non-disassembled state. 3. Low test efficiency: During the test process, the equipment needs to be interrupted multiple times, and the time consumed for manual measurement and judgment after each interruption is relatively long, resulting in an extremely long overall test cycle. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a treadmill strength detection device and its detection process, thereby realizing high-precision detection of the deformation of the running belt and durability testing, and improving the detection efficiency.

[0005] To solve the above technical problems, the present invention is solved by the following technical solutions: A treadmill strength detection device includes a base for fixing the treadmill and a simulation unit for simulating human walking; The simulation unit includes a rotating shaft and eccentric wheels symmetrically arranged on the rotating shaft, and the eccentric wheels are coated with an elastic deformable material; The treadmill includes a running frame and a running belt, and a detection unit for detecting the concave state of the inner side of the running belt is movably arranged on the running frame; The detection unit includes a positioning shaft and a number of detection parts movably arranged on the positioning shaft. The detection parts are provided with a number of liquid spraying holes, and the positioning shaft is provided with a first liquid injection hole connected to the liquid spraying holes on the detection parts after movement; The first liquid injection hole is connected to a liquid injection tank, and the liquid injection tank is provided with a liquid level monitor.

[0006] In the above solution, preferably, the detection member includes a rotating sleeve and a spray pipe, and the liquid spraying holes are arranged on the spray pipe; An elastic member is arranged between the rotating sleeve and the running frame.

[0007] In the above solution, preferably, a liquid injection groove is arranged on the inner wall of the rotating sleeve, and the liquid injection groove communicates with the first liquid injection hole after the rotating sleeve moves.

[0008] In the above solution, preferably, an adjusting shaft is arranged on the running frame, and a mounting plate connected to the elastic member is arranged on the adjusting shaft.

[0009] In the above solution, preferably, the adjusting shaft is rotatably arranged on the running frame, an adjusting plate is arranged at any one end of the adjusting shaft, and a plurality of adjusting pins matched with the adjusting plate are arranged on the running frame.

[0010] In the above solution, preferably, a servo push rod connected to the adjusting plate is arranged on the base.

[0011] In the above solution, preferably, a swing plate is arranged at the other end of the adjusting shaft, a first pipe fitting connected to the liquid injection tank and a second pipe fitting connected to the fuel injection tank are arranged on the swing plate; A through hole communicating with the first liquid injection hole is arranged on the positioning shaft, and after the swing plate swings, the first pipe fitting or the second pipe fitting can be docked with the through hole.

[0012] In the above solution, preferably, a first pump body is arranged between the first pipe fitting and the liquid injection tank, and a second pump body is arranged between the second pipe fitting and the fuel injection tank.

[0013] In the above solution, preferably, a second liquid injection hole connected to the liquid spraying holes on the detection member after movement is arranged on the positioning shaft.

[0014] In the above solution, preferably, a detection process of a treadmill strength detection device is as follows: S1: Fix the treadmill on the base, then start the treadmill, the rotating shaft rotates, driving the eccentric wheel to run eccentrically, and the eccentric wheel contacts and presses the running board and the running belt to simulate the human running action; S2: After running for a period of time or a certain distance, the treadmill and the rotating shaft stop rotating, the detection member on the positioning shaft contacts the inner wall of the running belt in an elastic manner, and then the running belt rotates one week through the control of the treadmill; S3: When the inner wall of the running belt has a concave state, the detection member rotates, and after rotation, liquid is sprayed through the liquid spraying holes, reducing the liquid in the liquid injection tank; S4: Repeat steps S2 - S3. When the liquid level monitor in the liquid injection tank detects that the liquid has decreased to the set standard, it means that the deformation of the inner surface of the running belt has reached the limit state, and the running belt needs to be replaced. At this time, calculate the cumulative running distance based on the number of times S2 is repeated and the single - run distance, and complete the test of the running belt.

[0015] The beneficial effects of the present invention are as follows: Through the design of the eccentric wheel and the elastic coating layer, the present invention accurately reproduces the complex stress during human running, greatly reducing the error of load simulation. At the same time, by dynamically adjusting the pressure of the elastic member, it ensures the contact consistency of the deformation detection of the running belt, improving the accuracy of the detection of the inner surface of the running belt. In addition, the liquid injection detection method realizes the instant marking when there is a depression on the inner side of the running belt, and judges the state of the depression on the inner side of the running belt according to the set reduction amount of the liquid, greatly improving the effectiveness and accuracy of the judgment. Finally, the mechanical detection method reduces the error of manual intervention, also reduces the labor cost, and greatly improves the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a sectional structure schematic diagram of the present invention.

[0018] Figure 3 It is a left - hand isometric three - dimensional structure diagram of the present invention.

[0019] Figure 4 It is a three - dimensional structure schematic diagram of the detection unit of the present invention.

[0020] Figure 5 It is a three - dimensional structure schematic diagram of the detection part of the present invention.

[0021] Figure 6 It is a partial three - dimensional structure schematic diagram of the positioning shaft of the present invention.

[0022] Figure 7 For the present invention Figure 2 Partial enlarged structure schematic diagram at position A. DETAILED DESCRIPTION OF THE INVENTION

[0023] The following further describes the present invention in detail in conjunction with the drawings and the specific embodiments: Refer to Figures 1-7 .

[0024] A treadmill strength detection device includes a base 1 and a simulation unit 3. The treadmill 2 to be tested is fixed on the base 1. Specifically, various positioning blocks can be arranged on the base 1 to position and fix the treadmill 2 front - to - back and left - to - right. This is the conventional technology for those skilled in the art and will not be elaborated here.

[0025] The treadmill 2 includes a running frame 201 and a running belt 202. The simulation unit 3 is disposed above the running belt 202. The simulation unit 3 includes a rotating shaft 301 and eccentric wheels 302 symmetrically disposed on the rotating shaft 301. As Figure 1 shown, on both sides of the middle of the base 1, there are side plates extending upward. Both ends of the rotating shaft 301 are rotatably disposed on the side plates, and any one end of the rotating shaft 301 passes through the side plate and is connected to a driving motor to realize the rotation of the rotating shaft 301.

[0026] The eccentric wheel 302 is provided with an eccentric hole. The eccentric wheel 302 is fixedly connected to the rotating shaft 301 through the eccentric hole. When the rotating shaft 301 rotates, the eccentric wheel 302 can make an eccentric rotation. The two groups of symmetrically disposed eccentric wheels 302 are arranged staggeredly, that is, the connecting line between the eccentric hole and the rotating shaft 301 is set at 180°. When one side of the eccentric wheel 302 contacts the running belt 202, the other side of the eccentric wheel 302 is away from the running belt 202. The outer edge of the eccentric wheel 302 is coated with an elastic deformable material. When the outer edge of the eccentric wheel 302 contacts the running belt 202 and the internal massage running board, the outer edge of the eccentric wheel 302 is squeezed and deformed, and at the same time reacts on the running board. The running board adopts a massage running board, and a number of raised points are provided thereon.

[0027] The running frame 201 is provided with a detection unit 4 for detecting the depression state of the inner side surface of the running belt 202. As Figure 2 , Figure 4 and Figure 7 shown, the detection unit 4 includes a positioning shaft 401 and a number of detection members 402 movably disposed on the positioning shaft 401. The positioning shaft 401 passes through the side frames on both sides of the running frame 201, and the positioning shaft 401 is located between the driving roller and the running board of the treadmill 2 and is disposed below the inner side surface of the running belt 202.

[0028] The detection member 402 includes a rotating sleeve 405 and a spray pipe 406. As Figure 5 shown, the spray pipe 406 extends from one end to the other end of the rotating sleeve 405, and the spray pipe 406 is in a spatially parallel state with the axis of the rotating sleeve 405. A number of liquid spray holes 403 are provided on the spray pipe 406. The detection member 402 is rotatably sleeved on the outer cylindrical surface of the positioning shaft 401, and sealing rings can be provided between both ends of the detection member 402 and the positioning shaft 401 to prevent liquid leakage while ensuring the flexible rotation of the detection member 402.

[0029] The inner wall of the rotating sleeve 405 is provided with a liquid injection groove 408 that is connected in communication with the inner holes at both ends of the spray pipe 406. As Figure 7As shown, a first liquid injection hole 404 communicating with the liquid injection groove 408 on the movable post-detection member 402 is provided on the positioning shaft 401. That is, initially, the liquid injection groove 408 of the rotating sleeve 405 cooperates with the surface of the positioning shaft 401, and it is difficult for liquid to enter. When the rotating sleeve 405 rotates by a certain angle, after the liquid injection groove 408 communicates with the first liquid injection hole 404, the liquid is injected into the liquid injection groove 408 through the first liquid injection hole 404 and then discharged through the liquid spraying holes 403 on the liquid spraying pipe 406.

[0030] The rotating sleeves 405 are arranged at equal intervals along the axis of the positioning shaft 401, and the gap between adjacent rotating sleeves 405 is preferably less than 0.5 mm to improve the detection accuracy of the detection member 402. By adjusting the axial length of the detection member 402 and increasing or decreasing the number of detection members 402 arranged, the detection accuracy can be adjusted. The shorter the detection member 402 is, the shorter the liquid spraying pipe 406 is, and at this time, the accuracy of detecting the inner surface of the running belt 202 is higher; a first liquid injection hole 404 matching the number of rotating sleeves 405 is provided on the positioning shaft 401; a through hole 409 is provided at the center of the positioning shaft 401, and the through hole 409 communicates with each first liquid injection hole 404. The through hole 409 extends inward from one end of the positioning shaft 401 and stops extending when it approaches the other end. That is, when liquid is injected through one end connected to the through hole 409, it can only be discharged through the first liquid injection hole 404.

[0031] An elastic member 407 is provided between the rotating sleeve 405 and the running frame 201. The elastic member 407 can be a spring or an elastic rope, etc. Figure 7 As shown, this is the detection state. At this time, the elastic member 407 is in a slightly tensioned state, that is, the rotating sleeve 405 is slightly tensioned counterclockwise, and the liquid spraying pipe 406 is slightly in contact with the inner surface of the running belt 202. When the running belt 202 rotates and there is a depression on the inner side, the liquid spraying pipe 406 rotates counterclockwise and always fits and contacts the depression surface. At this time, after the rotating sleeve 405 rotates by a certain angle, it cooperates with the first liquid injection hole 404, so that the first liquid injection hole 404 conveys the liquid to the liquid spraying pipe 406 for spraying. An arc-shaped groove communicating with the first liquid injection hole 404 can be provided on the surface of the positioning shaft 401 to increase the rotation angle range of the rotating sleeve 405.

[0032] The first liquid injection hole 404 is connected to a liquid injection tank 101, and a liquid level monitor 102 is provided on the liquid injection tank 101. During detection, the warning liquid level of the liquid level monitor 102 is set. When the warning liquid level is reached after multiple detections, it indicates that the area of the depressed part on the inner surface of the running belt 202 is relatively large at this time. At this time, the running belt 202 should be replaced, and at the same time, the mileage that the running belt 202 has run in this state is recorded.

[0033] To ensure that the liquid spraying pipe 406 does not contact the inner surface of the running belt 202 when the running belt 202 is running normally, in this embodiment, an adjusting shaft 5 is rotatably provided on the running frame 201.Figure 2 , Figure 4 and Figure 7 As shown in Figure 7 , the adjusting shaft 5 is arranged below the positioning shaft 401, and an installation plate 501 connected to the elastic member 407 is provided on the adjusting shaft 5.

[0034] Both ends of the adjusting shaft 5 are arranged through the side frame of the running frame 202. Specifically, one end of the adjusting shaft 5 is fixedly provided with an adjusting plate 502 after passing through the running frame 202, and a swing plate 504 is provided at the other end after passing through the running frame 202. A plurality of adjusting pins 503 cooperating with the adjusting plate 502 are provided on the side frame of the running frame 202. Specifically, locking holes are provided on the adjusting plate 502, the adjusting pins 503 are arranged circumferentially around the adjusting shaft 5, and the adjusting pins 503 can be elastic dowel pins. Locking holes that cooperate with any one of the adjusting pins 503 after rotation are provided on the adjusting plate 502. As shown in Figure 4 Figure 4 , this is the state of the cooperation between the adjusting pin 503 and the locking hole in the test state; preferably, 3 groups of adjusting pins 503 are provided, and 2 groups are symmetrically arranged on both sides of the adjusting pin 503 in the test state, that is, in the state shown in Figure 4 Figure 4 , after the adjusting plate 502 rotates clockwise or counterclockwise by a certain angle, it can cooperate with the adjusting pins on one side.

[0035] To improve the automation degree of this test equipment, a servo push rod 103 connected to the adjusting plate 502 is provided on the base 1. By controlling the servo push rod 103, the rotation of the adjusting plate 502 can be realized, so as to realize the cooperation with any one of the three groups of adjusting pins 503.

[0036] A first pipe fitting 505 connected to the liquid injection tank 101 and a second pipe fitting 506 connected to the oil injection tank 104 are provided on the swing plate 504. Both the first pipe fitting 505 and the second pipe fitting 506 are arranged circumferentially around the adjusting shaft 5 and have the same center distance; after the swing plate 504 swings, the first pipe fitting 505 or the second pipe fitting 506 can be docked with the through hole 409; in the test state shown in Figure 4 Figure 4 , the first pipe fitting 505 and the through hole 409 are in a docked state; a first pump body 105 is provided between the first pipe fitting 505 and the liquid injection tank 101, and a second pump body 106 is provided between the second pipe fitting 506 and the oil injection tank 104. In the test state, the detection liquid is injected into the through hole 409 through the first pipe fitting 505 by the first pump body 105.

[0037] A second liquid injection hole 410 connected to the liquid spraying hole 403 on the movable detection member 402 is provided on the positioning shaft 401, as shown in Figure 7As shown, the second liquid injection hole 410 is arranged in the same state as the first liquid injection hole 404. It is arranged in the clockwise direction of the first liquid injection hole 404 and is arranged at a certain angle with the first liquid injection hole 404. When the detection member 402 does not detect, through manual or servo push rod 103 action, the adjustment shaft 5 rotates counterclockwise by a certain angle and cooperates with the left adjustment pin 503. At this time, the elastic member 407 no longer exerts a pulling force on the rotating sleeve 405. After the detection member 402 is released from the acting force, it rotates clockwise by a certain angle, so that the liquid injection groove 408 communicates with the second liquid injection hole 410. At the same time, after the adjustment shaft 5 rotates, the second pipe fitting 506 is docked with the through hole 409. If the second pump body 106 works at this time, the inner side of the running belt 202 can be lubricated by spraying oil.

[0038] In this embodiment, the detection unit 4 actually has the functions of three states: First, when used as a part of the detection device cooperating with the base 1, in the detection state, it is communicated with the first pipe fitting 505 through the first liquid injection hole 404. When a depression appears on the inner side of the running belt 202, liquid is sprayed, and according to the results of multiple detections, the liquid level in the liquid injection tank 101 drops. When it reaches the set value, the running distance of the treadmill 2 is recorded. At this time, the running distance is the service life of the running belt 202. Second, when used as a lubricating part, each treadmill needs to lubricate the inner side of the running belt 202 when leaving the factory. Using the above detection device as a lubricating device, at this time, through the servo push rod 103 or manual adjustment, the second pipe fitting 506 is docked with the through hole 409, and the second pump body 106 is started. The running belt 202 rotates one circle, and the oil liquid is sprayed onto the inner side wall of the running belt 202 through the liquid spraying hole 403 to achieve uniform lubrication, improving the lubrication efficiency and uniformity. Finally, when the treadmill 2 is used alone after being purchased, it also needs to be lubricated regularly. At this time, the detection unit 4 and the treadmill 2 are in an integrated state. When the adjustment shaft 5 is rotated manually and cooperates with the adjustment pin 503 to be in the lubrication state, that is, when the second liquid injection hole 410 is in communication with the liquid injection groove 408, the oil liquid is manually squeezed into the through hole 409 at a certain pressure and is sprayed onto the inner side of the running belt 202 through the liquid spraying hole 403, so that the running belt 202 rotates one circle to complete lubrication, realizing the regular lubrication use of the running belt 202 by the user.

[0039] A detection process of a treadmill strength detection device is as follows: S1: Fix the treadmill 2 on the base 1, then start the treadmill 2, the rotating shaft 301 rotates, driving the eccentric wheel 302 to run eccentrically. The eccentric wheel 302 contacts and presses against the running board and the running belt 202 to simulate the human running motion. S2: After running for a period of time or a certain distance, the treadmill 2 and the rotating shaft 301 stop rotating. The detecting member 402 on the positioning shaft 401 contacts the inner wall of the running belt 202 in an elastic manner. Subsequently, the running belt 202 is controlled by the treadmill 2 to rotate one full circle. S3: When the inner wall of the running belt 202 has a concave state, the detecting member 402 rotates, and after rotation, it sprays liquid through the liquid injection hole 403, reducing the liquid in the liquid injection tank 101. S4: Repeat steps S2 - S3. When the liquid level monitor 102 in the liquid injection tank 101 detects that the liquid has decreased to the set standard, it means that the deformation of the inner surface of the running belt 202 has reached the limit state, and the running belt needs to be replaced. At this time, calculate the cumulative running distance based on the number of times S2 is repeated and the single running distance, and complete the test of the running belt 202.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A treadmill intensity detection device, characterized in that: Comprising a base (1) for fixing a treadmill (2) and a simulation unit (3) for simulating human walking; The simulation unit (3) includes a rotating shaft (301) and eccentric wheels (302) symmetrically arranged on the rotating shaft (301), and the eccentric wheels (302) are coated with an elastic deformable material; The treadmill (2) includes a running frame (201) and a running belt (202), and a detection unit (4) for detecting the depression state of the inner side of the running belt (202) is movably arranged on the running frame (201); The detection unit (4) includes a positioning shaft (401) and a number of detection members (402) movably arranged on the positioning shaft (401), a number of liquid spraying holes (403) are arranged on the detection members (402), and a first liquid injection hole (404) connected to the liquid spraying holes (403) on the detection members (402) after movement is arranged on the positioning shaft (401); The first liquid injection hole (404) is connected to a liquid injection tank (101), and a liquid level monitor (102) is arranged on the liquid injection tank (101).

2. The treadmill intensity detection device according to claim 1, characterized in that: The detection member (402) includes a rotating sleeve (405) and a spraying pipe (406), and the liquid spraying holes (403) are arranged on the spraying pipe (406); An elastic member (407) is arranged between the rotating sleeve (405) and the running frame (201).

3. The treadmill intensity detection device according to claim 2, wherein: A liquid injection groove (408) is arranged on the inner wall of the rotating sleeve (405), and the liquid injection groove (408) communicates with the first liquid injection hole (404) after the rotating sleeve (405) moves.

4. A treadmill intensity detection device according to claim 2, characterized in that: An adjusting shaft (5) is arranged on the running frame (201), and a mounting plate (501) connected to the elastic member (407) is arranged on the adjusting shaft (5).

5. The treadmill intensity detection device according to claim 4, wherein: The adjusting shaft (5) is rotatably arranged on the running frame (201), an adjusting plate (502) is arranged at any one end thereof, and a number of adjusting pins (503) cooperating with the adjusting plate (502) are arranged on the running frame (201).

6. An intensity detection device for a treadmill according to claim 5, characterized in that: A servo push rod (103) connected to the adjusting plate (502) is arranged on the base (1).

7. An exercise treadmill intensity detection device according to claim 5, characterized in that: A swing plate (504) is arranged at the other end of the adjusting shaft (5), and a first pipe fitting (505) connected to the liquid injection tank (101) and a second pipe fitting (506) connected to the fuel injection tank (104) are arranged on the swing plate (504); A through hole (409) communicating with the first liquid injection hole (404) is arranged on the positioning shaft (401), and after the swing plate (504) swings, the first pipe fitting (505) or the second pipe fitting (506) can be docked with the through hole (409).

8. An exercise treadmill intensity detection device according to claim 7, characterized in that: A first pump body (105) is arranged between the first pipe fitting (505) and the liquid injection tank (101), and a second pump body (106) is arranged between the second pipe fitting (506) and the fuel injection tank (104).

9. The treadmill intensity detection device according to claim 1, characterized in that: A second liquid injection hole (410) connected to the liquid spraying holes (403) on the detection members (402) after movement is arranged on the positioning shaft (401).

10. The detection process of a treadmill intensity detection device according to claim 2, characterized in that: The process is as follows: S1: Fix the treadmill (2) on the base (1). Then start the treadmill (2). The rotating shaft (301) rotates, driving the eccentric wheel (302) to run eccentrically. The eccentric wheel (302) contacts and presses against the running board and the running belt (202) to simulate the human running motion. S2: After running for a period of time or a certain distance, the treadmill (2) and the rotating shaft (301) stop rotating. The detecting member (402) on the positioning shaft (401) contacts the inner wall of the running belt (202) with elastic contact. Then the running belt (202) is controlled by the treadmill (2) to rotate one week. S3: When the inner wall of the running belt (202) has a concave state, the detecting member (402) rotates and sprays liquid through the liquid spraying hole (403) after rotation, reducing the liquid in the liquid injection tank (101). S4: Repeat steps S2 - S3. When the liquid level monitor (102) in the liquid injection tank (101) detects that the liquid has decreased to the set standard, it means that the deformation of the inner surface of the running belt (202) has reached the limit state and the running belt needs to be replaced. At this time, calculate the cumulative running distance according to the number of times S2 is repeated and the single running distance, and complete the test of the running belt (202).

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