Large-gradient adjusting structure of hand-operated treadmill

Abstract

The utility model provides a large-gradient adjusting structure of a hand-operated running machine, which is used for adjusting the gradient of a running platform of the running machine and comprises an upper fixing plate and a lower fixing plate which are oppositely arranged up and down, the upper fixing plate is fixedly connected with the running platform of the running machine, and a group of upper supporting rods and a group of lower supporting rods are respectively hinged to the upper fixing plate and the lower fixing plate. The upper supporting rod and the lower supporting rod are hinged through a connecting piece, a lead screw is arranged on the connecting piece in a penetrating mode, external threads are arranged on the lead screw, internal threads matched with the external threads are arranged in the connecting piece, a rocker is arranged on at least one side of the lead screw, and the rocker is driven to drive the lead screw to rotate, so that the upper fixing plate and the lower fixing plate get close to each other or get away from each other. Therefore, gradient adjustment of the treadmill treadmill is achieved. Through the hand-operated mechanical design, the gradient of the treadmill is adjusted, the manufacturing cost is low, and the operation is simple.

Description

Technical Field

[0001] The utility model belongs to the technical field of fitness equipment, and particularly relates to a large slope adjustment structure of a hand-cranked treadmill. Background Art

[0002] With the continuous improvement of living standards, people pay more and more attention to physical exercise. Running is the simplest and most effective fitness method, and treadmills are more and more popular among people. For the convenience of storage, some exercisers will choose a foldable treadmill, which is folded and stored to save space.

[0003] However, the traditional foldable treadmill generally cannot adjust the slope of the running platform and cannot achieve different slope changes. Therefore, it is also impossible to simulate sports types such as uphill running, flat running, and downhill running, and it cannot meet the diverse usage needs of users.

[0004] The existing Chinese patent CN220967988U discloses a treadmill that adjusts the lifting through folding blocks, which includes a running platform; a running frame for carrying the running platform; at least one adjusting mechanism disposed below the running frame, which includes a support frame and a folding block. The support frame is connected to the running frame. The folding block includes a transfer part rotatably connected to the support frame and a support part fixed to the transfer part. Among them, the adjusting mechanism adjusts the slope of the treadmill through the folding block rotatably connected to the support frame.

[0005] However, the slope that can be adjusted by adopting this structure is limited, and the slope size cannot be adjusted according to the needs of users. Therefore, it is necessary to provide a structure with a large slope adjustment range and capable of adjusting the slope according to users. Summary of the Utility Model

[0006] Aiming at the defects of the above-mentioned prior art, the utility model provides a large slope adjustment structure of a hand-cranked treadmill for adjusting the slope of the running platform of the treadmill, which includes an upper fixing plate and a lower fixing plate arranged oppositely up and down. The upper fixing plate is fixedly connected to the running platform of the treadmill. A set of upper support rods and lower support rods are respectively hinged to the upper fixing plate and the lower fixing plate. The upper support rods and the lower support rods are hinged through a connecting piece. A lead screw is arranged through the connecting piece. An external thread is arranged on the lead screw, and an internal thread matching the external thread is arranged in the connecting piece. At least one side of the lead screw is provided with a rocker. Driving the rocker to drive the lead screw to rotate, so that the upper fixing plate and the lower fixing plate approach or move away from each other, thereby realizing the slope adjustment of the running platform of the treadmill.

[0007] Preferably, the cross-section of the upper support rod is in an open U shape, shaft holes are provided at both ends of the upper support rod, the structure of the lower support rod is the same as that of the upper support rod, the upper fixing plate includes a support plate and enclosing plates arranged on both sides of the support plate, the support plate and the enclosing plates form a moving groove for the upper support rod to move, a rotating shaft is arranged between the enclosing plates, and the structure of the lower fixing plate is the same as that of the upper fixing plate.

[0008] Preferably, the support plate includes a base area and extension areas, and the extension areas are arranged on the front and rear sides of the base area and are trapezoidal.

[0009] Preferably, the connecting member includes a support column and convex shafts extending from the support column to the left and right sides, and one end of the upper support rod and the lower support rod is sleeved on the convex shafts.

[0010] Preferably, a limiting ring groove and / or an anti-release buckle is arranged on the convex shaft.

[0011] Preferably, the adjustment range of the slope is 0 to 30 degrees.

[0012] Preferably, the external threads are respectively arranged at both ends of the lead screw, and the thread directions of the external threads at both ends are opposite.

[0013] Preferably, at least one end of the lead screw protrudes outwards with a connecting block, the rocker includes a connecting end connected to the connecting block and a handle end, an assembly groove for installing the connecting block is arranged at the connecting end, and the rocker is detachably connected to the lead screw.

[0014] Preferably, a support chassis is fixedly connected to the bottom of the lower fixing plate.

[0015] Preferably, the support chassis includes a chassis connected to the treadmill bracket and a fixed platform connected to the chassis, buffer feet are connected to the bottom of the chassis, and rollers are arranged at the front end of the chassis.

[0016] The beneficial effects of the present utility model are:

[0017] 1. Through the mechanical design of the hand-crank type, the adjustment of the slope of the treadmill is realized, with low manufacturing cost and simple operation.

[0018] 2. By driving the upper fixing plate and the lower fixing plate to approach or move away from each other through the lead screw, the slope adjustment of the treadmill running platform is realized, so that the slope adjustment range is wide and the slope adjustment gears are not limited. Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the treadmill provided by the present embodiment.

[0020] Figure 2Schematic diagram of the slope adjustment structure provided for the present new model.

[0021] Figure 3 Schematic diagram of the upper support rod provided for the present new model.

[0022] Figure 4 Schematic diagram of the upper fixing plate provided for the present utility model.

[0023] Figure 5 Schematic diagram of the lead screw and rocker provided for the present utility model.

[0024] Figure 6 Schematic diagram of the connecting piece provided for the present utility model. Detailed implementation manners

[0025] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Here, it should also be noted that in order to avoid obscuring the present utility model due to unnecessary details, only the structures and / or processing steps closely related to the solution of the present utility model are shown in the drawings, while other details less related to the present utility model are omitted.

[0027] In addition, it should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0028] Embodiment:

[0029] As Figures 1-6As shown in the figure, the present utility model discloses a large-slope adjustment structure for a hand-cranked treadmill, which is used to adjust the slope of the treadmill running platform 100 relative to the bottom surface. It includes an upper fixing plate 200 and a lower fixing plate 300 that are oppositely arranged up and down. The upper fixing plate 200 is fixedly connected to the treadmill running platform 100. A set of upper support rods 400 and a set of lower support rods 500 are respectively hinged to the upper fixing plate 200 and the lower fixing plate 300. It can be understood that in this patent, a set means including two, that is, a set of upper support rods 400 includes two upper support rods 400. The upper support rods 400 and the lower support rods 500 are hinged through a connecting member 600. It can be understood that two connecting members 600 are also provided. A lead screw 700 is passed through the connecting member 600. An external thread is provided on the lead screw 700, and an internal thread matching the external thread is provided inside the connecting member 600. At least one side of the lead screw 700 is provided with a rocker 800. The rocker 800 is driven to drive the lead screw 700 to rotate. Due to the meshing of the internal thread and the external thread, the upper fixing plate 200 and the lower fixing plate 300 approach or move away from each other, thereby realizing the slope adjustment of the treadmill running platform 100. This mechanical structure has a low manufacturing cost, and the slope adjustment can be accurately controlled according to the number of turns of the thread, realizing the adjustment of a large slope.

[0030] In this embodiment, the cross-section of the upper support rod 400 is in the shape of an open U. Shaft holes 410 are provided at both ends of the upper support rod 400. The structure of the lower support rod 500 is the same as that of the upper support rod 400. The upper fixing plate 200 includes a support plate 210 and enclosing plates 220 arranged on both sides of the support plate 210. The support plate 210 and the enclosing plates 220 form an activity groove for the upper support rod 400 to move. A rotating shaft 230 is provided between the enclosing plates 220. The structure of the lower fixing plate 300 is the same as that of the upper fixing plate 400.

[0031] In this embodiment, the support plate 210 includes a base area 211 and an extension area 212. The extension area 212 is arranged on the front and rear sides of the base area 211 and is trapezoidal, increasing the support area and improving the support strength.

[0032] In this embodiment, the connecting member 600 includes a support column 610 and convex shafts 620 extending from the support column 610 to the left and right sides. One end of the upper support rod 400 and the lower support rod 500 is sleeved on the convex shaft 620. It can be understood that the internal thread is arranged in the through hole in the middle of the support column 610.

[0033] In this embodiment, a limit ring groove (not shown) and / or an anti-release buckle (not shown) are provided on the convex shaft 620 to prevent the upper support rod 400 and the lower support rod 500 from coming off.

[0034] In this embodiment, the adjustment range of the slope is 0 to 30 degrees, which is convenient for users to adjust different slopes and meet different exercise needs.

[0035] In this embodiment, the external threads are respectively arranged at both ends of the lead screw 700, and the thread directions of the external threads at both ends are opposite, thereby realizing the mutual approach or separation between the upper fixing plate 200 and the lower fixing plate 300.

[0036] In this embodiment, at least one end of the lead screw 700 protrudes outward with a connecting block 710. The rocker 800 includes a connecting end 810 connected to the connecting block 710 and a handle end 820. The connecting end 810 is provided with an assembly groove 811 for installing the connecting block 710, and the rocker 800 is detachably connected to the lead screw 700. After adjusting the slope, the rocker 800 can be detached to avoid accidental touch and cause injury to the trainer.

[0037] In this embodiment, a support chassis 110 is fixedly connected to the bottom of the lower fixing plate 300 to increase the support area with the bottom surface.

[0038] In this embodiment, the support chassis 110 includes a chassis 111 connected to the treadmill bracket and a fixed platform 112 connected to the chassis 111. A buffer foot for reducing noise is connected to the bottom of the chassis 111, and a roller is provided at the front end of the chassis 111 to facilitate the movement of the treadmill.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A large slope adjustment structure for a hand-cranked treadmill, which is used to adjust the slope of the treadmill running platform, and is characterized in that It includes an upper fixing plate and a lower fixing plate which are arranged opposite to each other up and down. The upper fixing plate is fixedly connected to the treadmill running board. A set of upper support rods and lower support rods are respectively hinged to the upper fixing plate and the lower fixing plate. The upper support rods and the lower support rods are hinged to each other through a connecting member. A lead screw is arranged through the connecting member. External threads are provided on the lead screw. Internal threads matching the external threads are provided inside the connecting member. At least one side of the lead screw is provided with a rocker. Driving the rocker to drive the lead screw to rotate enables the upper fixing plate and the lower fixing plate to approach or move away from each other, thereby realizing the slope adjustment of the treadmill running board.

2. A large slope adjustment structure of a hand-cranked treadmill according to claim 1, characterized in that, The cross-section of the upper support rod is in an open U shape. Shaft holes are provided at both ends of the upper support rod. The structure of the lower support rod is the same as that of the upper support rod. The upper fixing plate includes a support plate and enclosing plates arranged on both sides of the support plate. The support plate and the enclosing plates form an activity slot for the upper support rod to move. A rotating shaft is arranged between the enclosing plates. The structure of the lower fixing plate is the same as that of the upper fixing plate.

3. The large slope adjustment structure of a hand-cranked treadmill according to claim 2, characterized in that, The support plate includes a base area and an extension area. The extension areas are arranged on the front and rear sides of the base area and are trapezoidal.

4. A large slope adjustment structure of a hand-cranked treadmill according to claim 2, characterized in that, The connecting member includes a support column and convex shafts extending from the support column to the left and right sides. One end of the upper support rod and the lower support rod is sleeved on the convex shaft.

5. The large slope adjustment structure of a hand-cranked treadmill according to claim 4, characterized in that, A limit ring groove and / or an anti-release buckle is provided on the convex shaft.

6. A large slope adjustment structure of a hand-cranked treadmill according to claim 1, characterized in that, The adjustment range of the slope is 0 to 30 degrees.

7. A large slope adjustment structure of a hand-cranked treadmill according to claim 1, characterized in that, The external threads are respectively arranged at both ends of the lead screw, and the thread directions of the external threads at both ends are opposite.

8. The large slope adjustment structure of a hand-cranked treadmill according to claim 1, characterized in that, At least one end of the lead screw protrudes outwards with a connecting block. The rocker includes a connecting end connected to the connecting block and a handle end. An assembly groove for installing the connecting block is provided at the connecting end. The rocker is detachably connected to the lead screw.

9. The large inclination adjustment structure of a hand-cranked treadmill according to claim 1, characterized in that A support chassis is fixedly connected to the bottom of the lower fixing plate.

10. A large slope adjustment structure for a hand-cranked treadmill according to claim 9, characterized in that, The support chassis includes a chassis connected to the treadmill support and a fixed platform connected to the chassis. Buffer feet are connected to the bottom of the chassis. A roller is provided at the front end of the chassis.

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