Folding treadmill with adjustable gradient

Abstract

The utility model discloses a folding treadmill with adjustable gradient, which comprises a foldable treadmill platform, the treadmill platform comprises a front frame and a rear frame which are hinged with each other, a lifting component is arranged below the front frame, the lifting component comprises a front lifting support leg, a rear lifting support leg and a lifting connecting rod, the front lifting support leg is hinged with one end of the front frame far away from the rear frame, and the rear lifting support leg is hinged with the other end of the front frame far away from the rear frame. The rear lifting supporting leg is hinged to the end, close to the rear frame, of the front frame, the two ends of the lifting connecting rod are hinged to the front lifting supporting leg and the rear lifting supporting leg respectively, and a quadrilateral structure is defined by the front lifting supporting leg, the front frame, the rear lifting supporting leg and the lifting connecting rod. The inclination angle of the front lifting supporting leg and the rear lifting supporting leg is changed, so that gradient adjustment is conducted on the whole treadmill with the end, away from the front frame, of the rear frame as the fulcrum. The front lifting support leg and the rear lifting support leg are linked, so that when the gradient is adjusted, the rear lifting support leg can continuously provide support for one end, close to the rear frame, of the front frame, and stepless adjustment of the gradient can be realized.

Description

Technical Field

[0001] The utility model relates to fitness equipment, in particular to a foldable treadmill with adjustable treadmill slope. Background Art

[0002] With the continuous improvement of living standards, people pay more and more attention to physical exercise, and running is the simplest and most effective way to keep fit. Treadmills are also increasingly popular. In order to facilitate storage, some athletes will choose foldable treadmills, which can be folded and stored to save space.

[0003] However, traditional folding treadmills generally cannot adjust the slope of the treadmill and cannot achieve different slope changes. Therefore, they cannot simulate uphill running, flat running, downhill running and other sports types, and cannot meet the diverse usage needs of users. In addition, the treadmill of a general folding treadmill is divided into a front treadmill and a rear treadmill that are hinged to each other. When folding, the rear treadmill is flipped upward for folding and storage. When unfolding, the rear treadmill is turned over and placed on the ground. Both the front treadmill and the rear treadmill are supported by legs. If the height of the front treadmill is raised, the position where the front treadmill and the rear treadmill are connected will cause a depression, causing the treadmill to fail to work. Therefore, the present application proposes a folding treadmill with adjustable slope for traditional folding treadmills, which is used to solve the above-mentioned disadvantage that the folding treadmill cannot adjust the slope. Utility Model Content

[0004] The utility model provides a folding treadmill with adjustable slope, which has the effect of achieving the slope adjustment of the folding treadmill. The specific technical solution is as follows:

[0005] A foldable treadmill with adjustable slope, which includes a foldable running platform, the running platform includes a front frame and a rear frame that are hinged to each other, a lifting assembly is arranged below the front frame, the lifting assembly includes a front lifting leg, a rear lifting leg and a lifting connecting rod, the front lifting leg is hinged to an end of the front frame away from the rear frame, the rear lifting leg is hinged to an end of the front frame close to the rear frame, the two ends of the lifting connecting rod are respectively hinged to the front lifting leg and the rear lifting leg, the front lifting leg, the front frame, the rear lifting leg and the lifting connecting rod are surrounded to form a quadrilateral structure, the rotation of the front lifting leg can drive the synchronous rotation of the rear lifting leg; by changing the inclination angle of the front lifting leg and the rear lifting leg, the slope of the treadmill as a whole can be adjusted with the end of the rear frame away from the front frame as the fulcrum.

[0006] Furthermore, the front lifting leg includes a front support rod, one end of which is provided with a front roller, the other end of the front support rod is fixedly connected to the front hinge plate, the front hinge plate is hinged to the front frame, the lifting link is hinged to the middle position of the front hinge plate, and the front support rod can rotate around the front frame.

[0007] Furthermore, the rear lifting leg includes a rear support plate, one end of the rear support plate is hinged to an end of the front frame close to the rear frame, and the other end of the rear support plate is hinged with a ground foot, which can always be in contact with the ground during the rotation of the support plate, and the middle position of the rear support plate is hinged to the lifting connecting rod.

[0008] Furthermore, the rear support plate is a triangular structure, the vertex of the triangle is hinged to the lifting connecting rod, and the two bottom points of the triangle are respectively hinged to the front frame and the ground anchor.

[0009] Furthermore, a rear roller is provided at one end of the rear frame away from the front frame, and the axis of the rear roller, the hinge point of the rear lifting leg and the front frame, and the hinge point of the front lifting leg and the front frame are arranged in a straight line, and the axis of the rear roller, the hinge point of the foot and the rear support plate, and the axis of the front roller are arranged in a straight line, so that the axis of the rear roller is connected to the hinge point of the rear lifting leg and the front frame, the hinge point of the front lifting leg and the front frame, the axis of the front roller, and the hinge point of the foot and the rear support plate to form a triangular support structure.

[0010] Furthermore, a front hinged plate is respectively provided on both sides of the front support rod, and the two front hinged plates are hinged on the front frame. Connecting rod connecting holes are provided on the two front hinged plates, and connecting rod connecting shafts are passed through the connecting rod connecting holes. The ends of the connecting rod connecting shafts are hinged to the lifting connecting rods. An avoidance groove is provided on the front frame, and the connecting rod connecting shaft can move in the avoidance groove.

[0011] Furthermore, an auxiliary wheel is arranged at one end of the front support rod close to the front hinge plate, so that when the front support rod is in a horizontal state, the auxiliary wheel and the front roller are in contact with the ground at the same time.

[0012] Furthermore, a bearing surface is provided at the end of the front frame close to the rear frame, and a lap joint surface matching the bearing surface is provided at the end of the rear frame, and the bearing surface can provide support for the end of the rear frame.

[0013] Furthermore, a locking assembly is provided at the end of the front frame close to the rear frame, and the locking assembly can lock the unfolded treadmill to prevent the front frame and the rear frame from rotating relative to each other.

[0014] Furthermore, a lifting motor fixing seat is provided on the front frame, and a lifting motor is fixed on the lifting motor fixing seat. The lifting motor includes a retractable push rod, which is connected to a driving rod. Both ends of the driving rod are connected to the front lifting legs. The front lifting legs are driven to rotate relative to the front frame through the extension and retraction of the push rod.

[0015] The utility model has ingenious structural design and is easy to assemble. The front lifting legs, front frame, rear lifting legs and lifting connecting rods of the lifting assembly form a quadrilateral structure, so that the front lifting legs are linked with the rear lifting legs, ensuring that the rear lifting legs can maintain contact with the ground when adjusting the slope, and continuously provide support for the end of the front frame close to the rear frame, thereby ensuring the stability of the treadmill when in use; the push rod of the lifting motor drives the front lifting legs to realize stepless adjustment of the slope, which greatly improves the user experience.

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0018] Figure 1 A three-dimensional diagram of the utility model of a foldable treadmill with adjustable slope when it is horizontally unfolded;

[0019] Figure 2 A three-dimensional diagram of the folding state of the foldable treadmill with adjustable slope of the utility model;

[0020] Figure 3 The utility model is a three-dimensional elevation diagram of the folding treadmill with adjustable slope Figure 1 ;

[0021] Figure 4 The utility model is a three-dimensional elevation diagram of the folding treadmill with adjustable slope Figure 2 ;

[0022] Figure 5 for Figure 4 A magnified view of part A;

[0023] Figure 6 It is an exploded view of the foldable treadmill with adjustable slope of the utility model;

[0024] Figure 7 It is a schematic diagram of the locking assembly of the rear frame of the foldable treadmill with adjustable slope of the utility model in the folded state;

[0025] Figure 8It is a schematic diagram of the locking assembly of the slope-adjustable folding treadmill of the utility model locking the rear frame. DETAILED DESCRIPTION

[0026] In order to better understand the purpose, function and specific design of the present invention, the following is a further detailed description of the foldable treadmill with adjustable slope of the present invention in conjunction with the accompanying drawings.

[0027] like Figure 1-8 As shown, the utility model comprises a foldable treadmill with adjustable slope, which comprises a foldable running platform, and the running platform comprises a front frame 1 and a rear frame 2 which are hinged to each other, and running boards are respectively arranged on the front frame 1 and the rear frame 2, and running belts are arranged on the running boards, and when stored, the rear frame 2 can be flipped to the top of the front frame 1 to realize the folding of the running platform; when in use, the rear frame 2 can be flipped to the rear of the front frame 1 in the horizontal direction to realize the unfolding of the running platform; a lifting assembly 3 is arranged under the front frame 1, and the lifting assembly 3 can lift the treadmill as a whole with the end of the rear frame 2 away from the front frame 1 as a fulcrum to realize the slope adjustment of the treadmill.

[0028] Specifically, the lifting assembly 3 includes a front lifting leg 31, a rear lifting leg 32 and a lifting connecting rod 33. The front lifting leg 31 is hinged to the end of the front frame 1 away from the rear frame 2, and the rear lifting leg 32 is hinged to the end of the front frame 1 close to the rear frame 2. The two ends of the lifting connecting rod 33 are respectively hinged to the front lifting leg 31 and the rear lifting leg 32. The front lifting leg 31, the front frame 1, the rear lifting leg 32 and the lifting connecting rod 33 are arranged to form a quadrilateral structure, so that the rotation of the front lifting leg 31 can drive the rear lifting leg 32 to rotate synchronously, that is, the front lifting leg 31 and the rear lifting leg 32 are linked to each other, and the slope of the treadmill as a whole can be adjusted with the end of the rear frame 2 away from the front frame 1 as the fulcrum by changing the inclination angle of the front lifting leg 31 and the rear lifting leg 32.

[0029] Since the front lifting legs 31 and the rear lifting legs 32 are arranged in linkage, when adjusting the slope, the front lifting legs 31 and the rear lifting legs 32 can both maintain contact with the ground, continuously providing support for the end of the front frame 1 close to the rear frame 2, avoiding depression at the connection position of the front frame 1 and the rear frame 2, thereby ensuring the stability of the treadmill when in use.

[0030] The front lifting leg 31 is connected to the lifting motor 34, and the lifting motor 34 can drive the front lifting leg 31 to rotate relative to the front frame 1 to achieve the slope adjustment of the treadmill. The front frame 1 of this embodiment is provided with a lifting motor fixing seat 11, and the lifting motor 34 is fixed on the lifting motor fixing seat 11 and can rotate relative to the lifting motor fixing seat 11. The lifting motor 34 includes a retractable push rod 341, and the push rod 341 is connected to the driving rod 35. The two ends of the driving rod 35 are connected to the front lifting leg 31, and the front lifting leg 31 is driven to rotate relative to the front frame 1 by the extension and contraction of the push rod 341.

[0031] The front lifting leg 31 includes a front support rod 311, one end of which is provided with a front roller 312, and the other end of the front support rod 311 is fixedly connected to a front hinge plate 313, which is hinged to the front frame 1, and the front support rod 311 can rotate around the front frame 1 to change the slope of the treadmill. In this embodiment, a front hinge plate 313 is respectively provided on both sides of the front support rod 311, and the two front hinge plates 313 are clamped and hinged on the front frame 1 to improve the strength of the hinge of the front support rod 311. The lifting connecting rod 33 is hinged to the middle position of the front hinge plate 313 to avoid the situation that when the front support rod 311 is in a horizontal state, the hinge point of the lifting connecting rod 33 coincides with the axis of the front support rod 311, causing the front lifting leg 31 to be stuck and unable to rotate. Preferably, in order to ensure the stability and convenience of the connection between the lifting connecting rod 33 and the front hinge plate 313, connecting rod connecting holes are provided on the two front hinge plates 313, and connecting rod connecting shafts 314 are inserted into the connecting rod connecting holes, and the ends of the connecting rod connecting shafts 314 are hinged to the lifting connecting rod 33. It is worth noting that in order to avoid interference between the connecting rod connecting shafts 314 and the front frame 1, an avoidance groove 12 is provided on the front frame 1, and the connecting rod connecting shaft 314 can move in the avoidance groove 12.

[0032] Preferably, an auxiliary wheel 315 is provided at one end of the front support rod 311 close to the front hinged plate 313, so that when the front support rod 311 is in a horizontal state, the auxiliary wheel 315 and the front roller 312 are in contact with the ground at the same time, providing support for the front lifting leg 31, and preventing the end of the front support rod 311 connected to the front hinged plate 313 from directly contacting the ground and scratching the ground.

[0033] The rear lifting leg 32 includes a rear support plate 321, one end of the rear support plate 321 is hinged to the end of the front frame 1 close to the rear frame 2, the other end of the rear support plate 321 is hinged with a foot 322, the middle position of the rear support plate 321 is hinged to the lifting connecting rod 33, the movement of the lifting connecting rod 33 can drive the rear support plate 321 to rotate, and the foot 322 is always in contact with the ground during the rotation of the rear support plate 321 to provide support for the end of the front frame 1 close to the rear frame 2. Preferably, the rear support plate 321 of the present embodiment is a triangular structure, the vertex of the triangle is hinged to the lifting link 33, and the two bottom points of the triangle are respectively hinged to the front frame 1 and the foot 322. By setting the hinge point of the lifting link 33 at the vertex position of the triangle, it is possible to avoid the hinge point of the lifting link 33 and the line connecting the two hinge points of the rear support plate 321 and the front frame 1 and the foot 322 from coinciding with each other, thereby avoiding the lifting link 33 and the rear support plate 321 from getting stuck. It is worth noting that in order to improve the stability of the connection between the rear support plate 321 and the front frame 1, the lifting link 33 and the foot 322, the rear support plate 321 of the rear lifting leg 32 of the present embodiment is composed of two pieces, which are respectively clamped on both sides of the front frame 1, the lifting link 33 and the foot 322.

[0034] like Figure 3 As shown, it is worth noting that the rear frame 2 of this embodiment is provided with a rear roller 4 at one end away from the front frame 1, and the axis of the rear roller 4, the hinge point of the rear lifting leg 32 and the front frame 1 (i.e. the hinge point of the rear support plate 321 and the front frame 1), and the hinge point of the front lifting leg 31 and the front frame 1 (i.e. the hinge point of the front hinge plate 313 and the front frame 1) are arranged in a straight line, and the axis of the rear roller 4, the hinge point of the foot 322 and the rear support plate 321, and the axis of the front roller 312 are arranged in a straight line, so that the axis of the rear roller 4 is connected with the hinge point of the rear lifting leg 32 and the front frame 1, the hinge point of the front lifting leg 31 and the front frame 1, the axis of the front roller 312, and the hinge point of the foot 322 and the rear support plate 321 to form a triangular support structure, so that the treadmill can work more stably after adjusting the slope. It can be understood that since the rear roller 4, the foot 322 and the front roller 312 are all in contact with the ground, it is only necessary to keep the height of the hinge points of the three from the ground consistent in order to achieve the axis of the rear roller 4, the hinge points of the foot 322 and the rear support plate 321 and the axis of the front roller 312 to be in a straight line.

[0035] It can be understood that the three sides of the above-mentioned triangular supporting structure are respectively: an edge formed by a straight line consisting of the axis of the rear roller 4, the hinge point of the rear lifting leg 32 and the front frame 1 (i.e. the hinge point of the rear support plate 321 and the front frame 1), and the hinge point of the front lifting leg 31 and the front frame 1 (i.e. the hinge point of the front hinge plate 313 and the front frame 1); an edge formed by a straight line consisting of the axis of the rear roller 4, the hinge point of the base 322 and the rear support plate 321, and the axis of the front roller 312; an edge formed by a straight line consisting of the hinge point of the front lifting leg 31 and the front frame 1, and the axis of the front roller 312.

[0036] Preferably, in order to improve the load-bearing capacity at the connection position between the front frame 1 and the rear frame 2 during use, a load-bearing surface is provided at the end of the front frame 1 close to the rear frame 2, and a lap surface matching the load-bearing surface is provided at the end of the rear frame 2, and the load-bearing surface can provide support for the end of the rear frame 2. The load-bearing surface of this embodiment is an inclined surface extending toward the rear frame 2.

[0037] Preferably, Figure 7-8 As shown, in another embodiment, a locking assembly 5 is provided at the end of the front frame 1 close to the rear frame 2, and the locking assembly 5 can lock the unfolded treadmill to prevent the front frame 1 and the rear frame 2 from rotating relative to each other, thereby further improving the bearing capacity at the connection position of the front frame 1 and the rear frame 2.

[0038] The locking assembly 5 includes a locking pin 51, which is movably arranged at the end of the front frame 1 close to the rear frame 2. The locking pin 51 is connected to an elastic assembly 52. ​​Under the action of the elastic assembly 52, the locking pin 51 extends out of the end of the front frame 1. When the rear frame 2 is unfolded, the locking pin 51 can be compressed and retracted into the front frame 1. A locking hole 21 is arranged at the end of the rear frame 2. When the rear frame 2 is fully unfolded, the locking pin 51 can be inserted into the rear frame 2 under the action of the elastic assembly 52 to lock the rear frame 2 and prevent the front frame 1 and the rear frame 2 from rotating relative to each other. The end of the locking pin 51 away from the rear frame 2 is connected to a fine-tuning wrench through a fine-tuning line 53. Pulling the fine-tuning wrench can retract the locking pin 51 into the front frame 1. At this time, the rear frame 2 is unlocked, and the rear frame 2 can rotate relative to the front frame 1 to be folded and stored.

[0039] The utility model has ingenious structural design and is easy to assemble. The front lifting legs, front frame, rear lifting legs and lifting connecting rods of the lifting assembly form a quadrilateral structure, so that the front lifting legs are linked with the rear lifting legs, ensuring that the rear lifting legs can maintain contact with the ground when adjusting the slope, and continuously provide support for the end of the front frame close to the rear frame, thereby ensuring the stability of the treadmill when in use; the push rod of the lifting motor drives the front lifting legs to realize stepless adjustment of the slope, which greatly improves the user experience.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A foldable treadmill with adjustable slope, characterized in that: The invention comprises a foldable treadmill, which comprises a front frame and a rear frame which are hinged to each other. A lifting assembly is arranged under the front frame, and the lifting assembly comprises a front lifting leg, a rear lifting leg and a lifting connecting rod. The front lifting leg is hinged to an end of the front frame away from the rear frame, and the rear lifting leg is hinged to an end of the front frame close to the rear frame. The two ends of the lifting connecting rod are respectively hinged to the front lifting leg and the rear lifting leg. The front lifting leg, the front frame, the rear lifting leg and the lifting connecting rod are arranged to form a quadrilateral structure. The rotation of the front lifting leg can drive the synchronous rotation of the rear lifting leg. By changing the inclination angles of the front lifting leg and the rear lifting leg, the slope of the treadmill as a whole can be adjusted with the end of the rear frame away from the front frame as the fulcrum.

2. The foldable treadmill with adjustable slope according to claim 1, characterized in that: The front lifting leg includes a front support rod, one end of which is provided with a front roller, the other end of the front support rod is fixedly connected to the front hinge plate, the front hinge plate is hinged to the front frame, the lifting link is hinged to the middle position of the front hinge plate, and the front support rod can rotate around the front frame.

3. The foldable treadmill with adjustable slope according to claim 2, characterized in that: The rear lifting leg includes a rear support plate, one end of the rear support plate is hinged to the end of the front frame close to the rear frame, the other end of the rear support plate is hinged with a ground foot, the ground foot can always be in contact with the ground during the rotation of the support plate, and the middle position of the rear support plate is hinged to the lifting connecting rod.

4. The foldable treadmill with adjustable slope as claimed in claim 3, characterized in that: The rear support plate is a triangular structure, the vertex of the triangle is hinged to the lifting connecting rod, and the two bottom points of the triangle are hinged to the front frame and the ground anchor respectively.

5. The foldable treadmill with adjustable slope according to claim 4, characterized in that: A rear roller is arranged at one end of the rear frame away from the front frame, and the axis of the rear roller, the hinge point of the rear lifting leg and the front frame, and the hinge point of the front lifting leg and the front frame are arranged in a straight line, and the axis of the rear roller, the hinge point of the foot and the rear support plate, and the axis of the front roller are arranged in a straight line, so that the axis of the rear roller is connected with the hinge point of the rear lifting leg and the front frame, the hinge point of the front lifting leg and the front frame, the axis of the front roller, and the hinge point of the foot and the rear support plate to form a triangular support structure.

6. The foldable treadmill with adjustable slope as claimed in claim 2, characterized in that: A front hinged plate is respectively arranged on both sides of the front support rod, and the two front hinged plate clamps are hinged on the front frame. Connecting rod connecting holes are arranged on the two front hinged plates, and connecting rod connecting shafts are passed through the connecting rod connecting holes. The ends of the connecting rod connecting shafts are hinged to the lifting connecting rods. An avoidance groove is arranged on the front frame, and the connecting rod connecting shaft can move in the avoidance groove.

7. The foldable treadmill with adjustable slope as claimed in claim 2, characterized in that: An auxiliary wheel is arranged at one end of the front support rod close to the front hinge plate, so that when the front support rod is in a horizontal state, the auxiliary wheel and the front roller are in contact with the ground at the same time.

8. The foldable treadmill with adjustable slope according to claim 1, characterized in that: A bearing surface is arranged at the end of the front frame close to the rear frame, and a lap joint surface matching the bearing surface is arranged at the end of the rear frame. The bearing surface can provide support for the end of the rear frame.

9. The foldable treadmill with adjustable slope according to claim 8, characterized in that: A locking assembly is provided at the end of the front frame close to the rear frame, and the locking assembly can lock the unfolded treadmill to prevent the front frame and the rear frame from rotating relative to each other.

10. The foldable treadmill with adjustable slope according to claim 1, characterized in that: A lifting motor fixing seat is arranged on the front frame, and a lifting motor is fixed on the lifting motor fixing seat. The lifting motor comprises a retractable push rod, which is connected to a driving rod. Both ends of the driving rod are connected to the front lifting legs. The front lifting legs are driven to rotate relative to the front frame through the extension and retraction of the push rod.

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