Treadmill clutch structure and unpowered treadmill

Abstract

The utility model discloses a treadmill clutch structure and an unpowered treadmill, the treadmill clutch structure is used for connecting a crawler belt and a resistance device, and comprises a first belt wheel, a rotating shaft, a second belt wheel, a tension wheel and a control mechanism, the first belt wheel is rotatably arranged on a rack of the treadmill and is in transmission connection with the crawler belt; the rotating shaft is rotatably arranged on the rack and is in transmission connection with the resistance device; the second belt wheel is in transmission connection with the first belt wheel through a belt and is connected with the rotating shaft; the tensioning wheel is movably arranged on the rack; the control mechanism is configured to control the tensioning wheel to move towards the belt so that the tensioning wheel can tension the belt. According to the treadmill clutch structure and the unpowered treadmill, the clutch of the crawler belt and the resistance device can be controlled, and the applicability of the treadmill on running resistance is improved.

Description

Technical Field

[0001] The utility model relates to the field of treadmills, in particular to a treadmill clutch structure and a non-powered treadmill. Background Art

[0002] A non-powered treadmill is a treadmill that does not require electricity. Compared with a traditional electric treadmill, the treadmill track rotates when the legs are pushed backward and downward. In order to increase the resistance of the track rotation, that is, the running resistance, the track is usually connected to a resistance device to increase the running resistance.

[0003] The resistance device and crawler belt of the existing non-powered treadmill are usually in a normally connected state, and it is difficult to change the connection state, so that the resistance of the treadmill is fixed, which is difficult to adapt to users with different resistance requirements, thereby making the product less applicable.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a treadmill clutch structure and a non-powered treadmill, which at least solve the technical problem of how to control the clutch of a crawler belt and a resistance device.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0009] A treadmill clutch structure is used to connect a crawler belt and a resistance device, and comprises:

[0010] A first pulley is rotatably disposed on the frame of the treadmill and is connected to the crawler belt transmission;

[0011] A rotating shaft, which is rotatably disposed on the frame and is drivingly connected to the resistance device;

[0012] A second pulley, connected to the first pulley through a belt drive, and connected to the rotating shaft;

[0013] A tensioning wheel, movably arranged on the frame;

[0014] A control mechanism is configured to control the tensioner to move toward the belt so that the tensioner tightens the belt.

[0015] In some embodiments, a roller shaft is provided on the crawler, and the roller shaft is rotatably provided on the frame, and the first pulley is connected to the roller shaft and rotates synchronously.

[0016] In some embodiments, it further includes a first synchronous pulley, a synchronous belt, and a second synchronous pulley connected in sequence, wherein the first synchronous pulley is connected to the resistance device, and the second synchronous pulley is connected to the rotating shaft.

[0017] In some embodiments, the tensioner includes a wheel body and a tensioner connecting plate, the wheel body is rotatably connected to the tensioner connecting plate, and the tensioner connecting plate is rotatably connected to the frame; the control mechanism is connected to the tensioner connecting plate and is configured to control the rotation of the tensioner connecting plate so that the tensioner moves toward the belt.

[0018] In some embodiments, the control mechanism is a hand brake assembly.

[0019] In some embodiments, the control mechanism comprises:

[0020] A first connecting rod, rotatably connected to the tensioner wheel connecting plate;

[0021] A first connecting plate is rotatably disposed on the frame and is rotatably connected to the first connecting rod;

[0022] a second connecting rod, rotatably connected to the first connecting plate;

[0023] A second connecting plate is rotatably disposed on the frame and rotatably connected to the second connecting rod;

[0024] A handle is connected to the second connecting plate and is configured to control the rotation of the second connecting plate.

[0025] In some embodiments, the frame is provided with a ratchet, the second connecting plate is rotationally connected to the ratchet, and the handle is provided with a pawl, which is connected to the ratchet and limits the rotation direction of the handle and the second connecting plate.

[0026] The utility model also provides a non-powered treadmill, comprising a crawler belt and a resistance device, and also comprising the above-mentioned treadmill clutch structure.

[0027] (III) Beneficial effects

[0028] Compared with the prior art, the treadmill clutch structure and the unpowered treadmill provided by the utility model have the following beneficial effects:

[0029] When the treadmill clutch structure and the unpowered treadmill are working, the control mechanism controls the tensioner to move toward the belt so that the tensioner can tighten the belt. At this time, the first pulley and the second pulley can be effectively transmitted through the belt, and the second pulley drives the rotating shaft to rotate. Since the first pulley is connected to the track, and the rotating shaft is connected to the resistance device, the resistance device can provide resistance to the track. When the resistance of the resistance device needs to be reduced, the control mechanism controls the tensioner to move away from the belt, and the first pulley and the second pulley cannot be effectively transmitted until the track and the resistance device are disconnected, and the resistance device no longer provides resistance to the track. It can be seen that the treadmill clutch structure and treadmill of the utility model can improve the applicability of the treadmill in running resistance by connecting or disconnecting the track and the resistance device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a right side stereogram of the treadmill clutch structure and the unpowered treadmill in the embodiment.

[0031] Figure 2 It is a left side stereogram of the treadmill clutch structure and the unpowered treadmill in the embodiment.

[0032] Figure 3 It is a three-dimensional diagram of the clutch structure of the treadmill in the embodiment.

[0033] Figure numerals: first pulley 1, rotating shaft 2, second pulley 3, tensioner 4, control mechanism 5, frame 6, track 7, resistance device 8, belt 9, roller 10, first synchronous pulley 11, synchronous belt 12, second synchronous pulley 13, wheel body 41, tensioner connecting plate 42, first connecting rod 51, first connecting plate 52, second connecting rod 53, second connecting plate 54, handle 55, ratchet 56, pawl 57. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0035] The resistance device and track of existing treadmills usually remain connected, and the resistance is fixed, which makes it difficult to adapt to users with different resistance requirements, thereby making the product less applicable.

[0036] In order to solve the above technical problems, this embodiment provides a treadmill clutch structure, please refer to Figures 1 to 3 As shown, Figure 1 It is a right perspective view of the treadmill clutch structure and the non-powered treadmill in the embodiment. Figure 2 It is a left perspective view of the treadmill clutch structure and the unpowered treadmill in the embodiment. Figure 3 It is a three-dimensional diagram of the clutch structure of the treadmill in the embodiment.

[0037] A treadmill clutch structure of this embodiment is used to connect a crawler belt 7 and a resistance device 8, and includes: a first pulley 1, a rotating shaft 2, a second pulley 3, a tensioner 4 and a control mechanism 5.

[0038] The first pulley 1 is rotatably disposed on the frame 6 of the treadmill and is drivingly connected to the crawler belt 7 .

[0039] The first pulley 1 can rotate relative to the frame 6 and drive the crawler belt 7 to rotate.

[0040] The rotating shaft 2 is rotatably disposed on the frame 6 and is drivingly connected to the resistance device 8.

[0041] The rotating shaft 2 can rotate relative to the frame 6 and transmit the resistance of the resistance device 8.

[0042] The second pulley 3 is connected to the first pulley 1 through a belt 9 and is connected to the rotating shaft 2 .

[0043] The second pulley 3 rotates synchronously with the rotating shaft 2 and transmits the force to the first pulley 1 through the belt 9 .

[0044] The tensioning wheel 4 is movably disposed on the frame 6 ; the control mechanism 5 is configured to control the tensioning wheel 4 to move toward the belt 9 so that the tensioning wheel 4 tensions the belt 9 .

[0045] The tensioner wheel 4 can move relative to the frame 6 , and the control mechanism 5 is used to control the movement of the tensioner wheel 4 , which can be rotation or movement, in order to tighten and loosen the belt 9 by the tensioner wheel 4 .

[0046] The frame 6 may include a plurality of frames, that is, components such as the first pulley 1 , the rotating shaft 2 , the tensioning wheel 4 , etc. may be installed on different frames of the frame 6 .

[0047] When the treadmill clutch structure of the above technical solution is working, the control mechanism 5 controls the tensioner 4 to move toward the belt 9 so that the tensioner 4 tightens the belt 9. At this time, the first pulley 1 and the second pulley 3 can be effectively transmitted through the belt 9, and the second pulley 3 drives the rotating shaft 2 to rotate. Since the first pulley 1 is connected to the track 7 by transmission, and the rotating shaft 2 is connected to the resistance device 8 by transmission, the resistance device 8 can provide resistance for the track 7; when it is necessary to reduce the resistance of the resistance device 8, the control mechanism 5 controls the tensioner 4 to move away from the belt 9, reduce the tension of the belt 9, and reduce the transmission efficiency between the first pulley 1 and the second pulley 3, until the track 7 and the resistance device 8 are disconnected, and the resistance device no longer provides resistance to the track. It can be seen that the treadmill clutch structure of the utility model can connect or disconnect the track 7 and the resistance device 8, which improves the applicability of the treadmill in running resistance.

[0048] See also Figure 1 and Figure 3As shown, in one embodiment of the above-mentioned first pulley 1 being transmission-connected with the crawler track 7, a roller shaft 10 is provided on the crawler track 7, and the roller shaft 10 is rotatably provided on the frame 6. The first pulley 1 is connected to the roller shaft 10 and rotates synchronously. When the first pulley 1 rotates, the roller shaft 10 is driven to rotate, and the roller shaft 10 can drive the crawler track 7 to rotate through the crawler wheel.

[0049] See also Figure 2 and Figure 3 As shown, in one embodiment of the transmission connection between the above-mentioned rotating shaft 2 and the resistance device 8, the treadmill clutch structure also includes a first synchronous pulley 11, a synchronous belt 12 and a second synchronous pulley 13 connected in sequence, the first synchronous pulley 11 is connected to the resistance device 8, and the second synchronous pulley 13 is connected to the rotating shaft 2; when the rotating shaft 2 rotates, it drives the second synchronous pulley 13, the synchronous belt 12, the first synchronous pulley 11 and the resistance device 8 to rotate in sequence, thereby transmitting the resistance of the resistance device 8 to the rotating shaft 2, and finally to the track 7.

[0050] It is understandable that the rotating shaft 2 and the resistance device 8 can also be driven by sprockets, chains, gears, etc.

[0051] See also Figure 1 and Figure 3 As shown, in this embodiment, the tensioner 4 moves toward the pulley by revolving around the frame 6. Specifically, the tensioner 4 includes a wheel body 41 and a tensioner connecting plate 42. The wheel body 41 is rotatably connected to the tensioner connecting plate 42, and the tensioner connecting plate 42 is rotatably connected to the frame 6. The above rotatable connection can be achieved through a pin shaft; the control mechanism 5 is connected to the tensioner connecting plate 42 and is configured to control the rotation of the tensioner connecting plate 42 so that the tensioner 4 moves toward the belt 9. In this way, the control mechanism 5 controls the rotation of the tensioner connecting plate 42, thereby driving the wheel body 41 to approach and move away from the belt 9, thereby achieving tensioning and loosening of the belt 9.

[0052] The control mechanism 5 may be an existing manual brake assembly, which is connected to the tensioner wheel connecting plate 42 .

[0053] The control mechanism 5 may also be an electric control assembly, which electrically drives the tensioning wheel 4 to rotate or move relative to the frame 6, thereby tightening or loosening the belt 9.

[0054] See also Figure 1 and Figure 3As shown, in this embodiment, the control mechanism 5 comprises: a first connecting rod 51, a first connecting plate 52, a second connecting rod 53, a second connecting plate 54 and a handle 55. The first connecting rod 51 is rotatably connected to the tensioner connecting plate 42; the first connecting plate 52 is rotatably arranged on the frame 6 and is rotatably connected to the first connecting rod 51; the second connecting rod 53 is rotatably connected to the first connecting plate 52; the second connecting plate 54 is rotatably arranged on the frame 6, such as being rotatably connected to the column of the treadmill, and is rotatably connected to the second connecting rod 53; the handle 55 is connected to the second connecting plate 54 and is configured to control the rotation of the second connecting plate 54. When the control mechanism 5 is working, the handle 55 controls the second connecting plate 54 to rotate relative to the frame 6, driving the second connecting rod 53 to move, and the second connecting rod 53 drives the first connecting plate 52 to rotate, then the first connecting plate 52 drives the first connecting rod 51 to move, and then drives the tensioner connecting plate 42 to rotate, so that the wheel body 41 of the tensioner 4 moves in a direction close to or away from the belt 9.

[0055] See also Figure 3 As shown, further, a rib plate is fixed on the frame 6, a ratchet 56 is provided on the rib plate, the second connecting plate 54 is rotatably connected to the ratchet 56, the handle 55 is provided with a pawl 57, the pawl 57 is connected to the ratchet 56, and limits the rotation direction of the handle 55 and the second connecting plate 54, so as to maintain the tensioned state, and the control mechanism 5 can realize reverse control by releasing the pawl 57, thereby achieving the effect of loosening the belt 9.

[0056] The present embodiment provides a non-powered treadmill, comprising a frame 6, a track 7 and a resistance device 8, and also comprising the above-mentioned treadmill clutch structure. Through the application of the above-mentioned treadmill clutch structure, the non-powered treadmill of the present embodiment can connect or disconnect the track 7 and the resistance device 8, thereby improving the applicability of the treadmill in running resistance.

[0057] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A treadmill clutch structure, characterized in that: For connecting tracks and resistance devices and comprising: A first pulley is rotatably disposed on the frame of the treadmill and is connected to the crawler belt transmission; A rotating shaft, which is rotatably disposed on the frame and is drivingly connected to the resistance device; A second pulley, connected to the first pulley through a belt drive, and connected to the rotating shaft; A tensioning wheel, movably arranged on the frame; A control mechanism is configured to control the tensioner to move toward the belt so that the tensioner tightens the belt.

2. The treadmill clutch structure according to claim 1, characterized in that: A roller shaft is arranged on the crawler, and the roller shaft is rotatably arranged on the frame. The first pulley is connected with the roller shaft and rotates synchronously.

3. The treadmill clutch structure according to claim 1, characterized in that: It also includes a first synchronous pulley, a synchronous belt, and a second synchronous pulley which are connected in sequence. The first synchronous pulley is connected to the resistance device, and the second synchronous pulley is connected to the rotating shaft.

4. The treadmill clutch structure according to claim 1, characterized in that: The tensioner wheel comprises a wheel body and a tensioner wheel connecting plate, wherein the wheel body is rotatably connected to the tensioner wheel connecting plate, and the tensioner wheel connecting plate is rotatably connected to the frame; The control mechanism is connected to the tensioner connecting plate and is configured to control the rotation of the tensioner connecting plate so that the tensioner moves toward the belt.

5. The treadmill clutch structure according to claim 1 or 4, characterized in that: The control mechanism is a manual brake assembly.

6. The treadmill clutch structure according to claim 4, characterized in that: The control mechanism comprises: A first connecting rod, rotatably connected to the tensioner wheel connecting plate; A first connecting plate is rotatably disposed on the frame and is rotatably connected to the first connecting rod; a second connecting rod, rotatably connected to the first connecting plate; A second connecting plate is rotatably disposed on the frame and rotatably connected to the second connecting rod; A handle is connected to the second connecting plate and is configured to control the rotation of the second connecting plate.

7. The treadmill clutch structure according to claim 6, characterized in that: The frame is provided with a ratchet, the second connecting plate is rotatably connected to the ratchet, the handle is provided with a pawl, the pawl is connected to the ratchet and limits the rotation direction of the handle and the second connecting plate.

8. A non-powered treadmill, comprising a crawler belt and a resistance device, characterized in that: It also includes the treadmill clutch structure as described in claim 1.

Images