Automatic gradient lifting and folding structure and treadmill applying same

Abstract

The utility model discloses an automatic gradient lifting and folding structure and a treadmill applying the same. The automatic gradient lifting and folding structure comprises a bottom frame, a supporting frame, a workbench and a telescopic rod. The underframe is fixedly arranged; the front portion of the supporting frame is pivoted to the bottom frame through a first rotating shaft extending left and right, and the rear portion of the supporting frame is movably arranged. The front portion of the workbench is pivoted to the rear portion of the supporting frame through a second rotating shaft extending leftwards and rightwards, and the rear portion of the workbench is movably arranged. The telescopic rod is located below the supporting frame and the workbench, the front portion of the telescopic rod is hinged to the bottom frame, and the rear portion of the telescopic rod is hinged to the workbench, so that after the telescopic rod retracts, the workbench can be pulled to move forwards, the rear portion of the supporting frame is driven to swing upwards, the front portion of the workbench is supported, and after the telescopic rod extends, the rear portion of the workbench can be pushed to swing upwards, and the workbench is erected. According to the utility model, the inclination angle of the workbench can be adjusted and the workbench can be erected and folded.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, in particular to an automatic slope lifting and folding structure and a treadmill using the same. Background Art

[0002] Some fitness equipment requires adjustment of the inclination angle during use. For example, when using a dumbbell bench to perform dumbbell bench press or dumbbell fly training, it is often necessary to adjust the inclination angle of the dumbbell bench work surface to adjust the training intensity and effect. For example, when using an abdominal muscle board to perform sit-up training, it is often necessary to adjust the inclination angle of the abdominal muscle board work surface to perform sit-up training of different intensities. For example, when using a treadmill to run, it is often necessary to lift the front of the treadmill work surface to form a certain inclination angle to simulate the process of climbing a slope.

[0003] Moreover, when the above-mentioned fitness equipment is in use, it usually extends horizontally for a long distance on the ground, which takes up a lot of space. Therefore, there is a need for a device that can be applied to the above-mentioned various types of fitness equipment, which can adjust the inclination angle and fold the fitness equipment through a simple structure. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic slope lifting and folding structure and a treadmill using the same, and the technical problem solved is to achieve the inclination adjustment, erection and folding of a workbench.

[0005] To achieve the above-mentioned purpose, the solution of the present utility model is: an automatic slope lifting and folding structure, comprising a base frame, a support frame, a workbench and a telescopic rod;

[0006] Chassis fixed setting;

[0007] The front portion of the support frame is pivotally connected to the base frame via a first rotating shaft extending left and right, and the rear portion of the support frame is movably arranged;

[0008] The front part of the workbench is pivotally connected to the rear part of the support frame through a second rotating shaft extending left and right, and the rear part of the workbench is movably arranged;

[0009] The telescopic rod is located below the support frame and the workbench, with the front part hinged on the base frame and the rear part connected to the workbench. When the telescopic rod is retracted, the workbench can be pulled forward, driving the rear part of the support frame to swing up and supporting the front part of the workbench. When the telescopic rod is extended, it can push the rear part of the workbench to swing up and make the workbench stand up.

[0010] Furthermore, the second rotating shaft is located higher than the first rotating shaft, so that when the telescopic rod is retracted to pull the workbench forward, it can drive the rear part of the support frame to swing upward and support the front part of the workbench.

[0011] Furthermore, the hinge point between the telescopic rod and the base frame is located below the first rotating shaft, and the telescopic rod is lower in front and higher in the back, and is tilted so that after the telescopic rod is extended, it can push the rear part of the workbench upward to make the workbench stand up.

[0012] Furthermore, a first limiting portion is formed on the support frame, and a second limiting portion is formed on the workbench. The first limiting portion and the second limiting portion are located in front of the second rotating shaft. When the rear part of the workbench swings upward, the second limiting portion can abut downward against the first limiting portion to limit the swinging between the workbench and the support frame.

[0013] Furthermore, the first limiting portion is in a U-shape with an opening facing upward, and the second limiting portion is used to slide into the first limiting portion from the U-shaped opening of the first limiting portion and abut against the first limiting portion.

[0014] Furthermore, a support frame limiting device is provided between the base frame and the support frame, and the support frame limiting device is used to limit the swing angle range of the support frame.

[0015] Furthermore, rollers are provided on the bottom side of the rear portion of the workbench. When the telescopic rod is extended to make the workbench in a horizontal position, the rear portion of the workbench falls to the ground through the rollers, and the rollers are used to roll back and forth. At this time, the telescopic rod contracts to pull the workbench forward, driving the rear portion of the support frame to swing up, supporting the front portion of the workbench, while the rollers remain on the ground. The telescopic rod is extended to push the rear portion of the workbench to swing up, so that the workbench stands up.

[0016] Furthermore, a vertical pole is installed at the front of the base frame, the bottom end of the vertical pole is fixed on the base frame, and the top end of the vertical pole is pivotally connected to the armrest through the armrest pivot shaft extending left and right. A connecting rod is also provided, and the upper end of the connecting rod is eccentrically pivoted to the armrest relative to the armrest pivot shaft, and the lower end of the connecting rod is eccentrically pivoted to the support frame relative to the first rotating shaft, so that the support frame and the armrest can be jointly rotated through the connecting rod. When the workbench is erected, the armrest can be linked to swing forward and stand up, and after the workbench is lowered, the armrest can be linked to swing backward and extend backward.

[0017] A treadmill uses the automatic slope lifting and folding structure as described above, and a running belt is arranged on the top surface of the workbench along the front-to-back direction.

[0018] After adopting the above scheme, the beneficial effects of the present invention are: the front part of the support frame is pivotally connected to the base frame through the first rotating shaft extending left and right, the rear part of the support frame is movably arranged, the front part of the workbench is pivotally connected to the rear part of the support frame through the second rotating shaft extending left and right, the rear part of the workbench is movably arranged, the telescopic rod is located below the support frame and the workbench, the front part is hinged to the base frame, and the rear part is connected to the workbench, so that after the telescopic rod is retracted, the workbench can be pulled forward, driving the rear part of the support frame to swing up, supporting the front part of the workbench, and adjusting the inclination angle of the workbench. After the telescopic rod is extended, it can push the rear part of the workbench to swing up, so that the workbench stands up, and the workbench can be folded up and folded up. Furthermore, by controlling the extension and retraction of the telescopic rod, the inclination angle of the workbench can be adjusted, as well as the erection and folding of the workbench can be achieved. The structure is very simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of the workbench of the utility model when it is in a horizontal state;

[0020] Figure 2 for Figure 1 A partial enlarged view of point B in the middle;

[0021] Figure 3 This is a side view of the workbench of the utility model when it is in a horizontal state;

[0022] Figure 4 This is a three-dimensional diagram of the front part of the workbench of the utility model being propped up;

[0023] Figure 5 This is a side view of the front of the workbench of the utility model being propped up;

[0024] Figure 6 This is a three-dimensional diagram of the workbench of the utility model when it is erected;

[0025] Figure 7 A schematic diagram of an armrest when the workbench is in a horizontal state in an embodiment in which an armrest is provided;

[0026] Figure 8 for Figure 7 A partial enlarged view of point C in the middle;

[0027] Figure 9 for Figure 7 A partial enlarged view of point D in the middle;

[0028] Figure 10 A schematic diagram of the armrest when the front portion of the workbench is propped up in an embodiment in which the armrest is provided;

[0029] Figure 11 This is a schematic diagram of the armrests when the workbench is erected in an embodiment in which armrests are provided.

[0030] Explanation of reference numbers: 1-base frame, 2-support frame, 3-workbench, 4-telescopic rod, 5-first rotating shaft, 6-second rotating shaft, 7-first limiting part, 8-second limiting part, 9-support frame limiting device, 10-roller, 11-left support arm, 12-right support arm, 13-limiting notch, 14-limiting pin, 15-vertical pole, 16-armrest pivot shaft, 17-armrest, 18-connecting rod. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise expressly defined, directional words, such as the use of terms such as "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, so they cannot be understood as limiting the specific scope of protection of the present invention.

[0033] An automatic slope lifting and folding structure, such as Figure 1-6 As shown, it includes a base frame 1, a support frame 2, a workbench 3 and a telescopic rod 4; the base frame 1 is fixed, specifically in this example, the base frame 1 is used to be placed on the ground; the front of the support frame 2 is pivotally connected to the base frame 1 through a first rotating shaft 5 extending left and right, and the rear of the support frame 2 is movably arranged so that the rear of the support frame 2 can swing up and down; the front of the workbench 3 is pivotally connected to the rear of the support frame 2 through a second rotating shaft 6 extending left and right to move with the swing of the rear of the support frame 2, and the rear of the workbench 3 is movably arranged so that the rear of the workbench 3 can swing up and down relative to the support frame 2; the telescopic rod 4 is located below the support frame 2 and the workbench 3, and can be any existing telescopic rod structure, preferably an electrically retractable one, and of course a pneumatic one can also be used. Dynamic telescopic or hydraulic telescopic, not limited to this, the front of the telescopic rod 4 is hinged on the base frame 1, and the rear is connected to the workbench 3. The second rotating shaft 6 is located higher than the first rotating shaft 5, so that when the telescopic rod 4 contracts and pulls the workbench 3 forward, it can drive the rear of the support frame 2 to swing up and prop up the front of the workbench 3, so as to raise the front of the workbench 3, so that the workbench 3 forms a slope with a high front and a low back, and the inclination angle of the workbench 3 can be adjusted. The hinge point between the telescopic rod 4 and the base frame 1 is located below the first rotating shaft 5, and the telescopic rod 4 is low in front and high in the back, and is tilted, so that after the telescopic rod 4 is extended, it can push the rear of the workbench 3 to swing up, so that the workbench 3 stands up, so as to realize the standing and folding of the workbench 3 and reduce the space occupied by the workbench 3.

[0034] When the telescopic rod 4 is extended and pushes the rear part of the workbench 3 to swing up, the front part of the workbench 3 will bring the rear part of the support frame 2 up with it. At this time, if the swinging between the workbench 3 and the support frame 2 is not restricted, there will be a certain uncertainty in the posture change of the structure. Therefore, preferably in this embodiment, a first limiting portion 7 is formed on the support frame 2, and a second limiting portion 8 is formed on the workbench 3. The first limiting portion 7 and the second limiting portion 8 are located in front of the second rotation axis 6. When the rear part of the workbench 3 swings up, the second limiting portion 8 can abut downward on the first limiting portion 7 to limit the swinging between the workbench 3 and the support frame 2; more preferably, in order to make the fixation more secure, the first limiting portion 7 It is U-shaped with the opening facing upward, and the second limiting portion 8 is used to slide into the first limiting portion 7 from the U-shaped opening of the first limiting portion 7 and abut against the first limiting portion 7; more specifically, in the present embodiment, the support frame 2 is composed of a left support arm 11 and a right support arm 12, which are symmetrically arranged and respectively arranged on the left and right sides of the workbench 3. The second limiting portion 8 is respectively arranged on the left and right sides of the workbench 3, and the second limiting portion 8 is in the shape of a horizontal pin. A U-shaped first limiting portion 7 is respectively provided on the inner side of the left support arm 11 and the right support arm 12 for the second limiting portion 8 on the corresponding side to slide into, and when the front part of the workbench 3 is not supported by the support frame 2, the second limiting portion 8 is always abutted against the first limiting portion 7.

[0035] In order to limit the swing angle of the support frame 2 to avoid device failure or danger, a support frame limiting device 9 is provided between the base frame 1 and the support frame 2. The support frame limiting device 9 is used to limit the swing angle range of the support frame 2. Any structure that can limit the swing angle range between the support frame 2 and the workbench 3 can be adopted, and the specific angle range can be set according to the needs of technical personnel in this field; specifically in this embodiment, the left support arm 11 and the right support arm 12 have protruding limit pins 14 on the outer sides, and a limit notch 13 is formed at the corresponding position on the base frame 1. The limit pin 14 extends into and is limited in the limit notch 13. The support frame 2 pivots, driving the limit pin 14 to move. When the limit pin 14 moves to the two ends of the limit notch 13, the support frame 2 cannot continue to move.

[0036] Preferably, in this embodiment, the front and rear lengths of the base frame 1 are smaller than the front and rear lengths of the workbench 3, the base frame 1 is located below the front half of the workbench 3, and a roller 10 is provided on the bottom side of the rear portion of the workbench 3. When the telescopic rod 4 is extended to make the workbench 3 in a horizontal position, the rear portion of the workbench 3 falls to the ground through the roller 10, and the roller 10 is used to roll back and forth. At this time, the telescopic rod 4 contracts to pull the workbench 3 forward, driving the rear portion of the support frame 2 to swing up, supporting the front portion of the workbench 3, while the roller 10 remains on the ground, and the telescopic rod 4 extends to push the rear portion of the workbench 3 to swing up, so that the workbench 3 stands up, thereby achieving that after the workbench 3 stands up, it only occupies an area the size of the base frame 1 on the ground.

[0037] Specifically in this embodiment, combined with Figure 7-11 As shown, an armrest assembly is also provided for the user to grasp during use. In order to realize that the armrest assembly can be linked to be folded when the workbench 3 is erected, in this embodiment, the preferred armrest assembly adopts the following structure: a vertical rod 15 is installed at the front of the base frame 1, and the bottom end of the vertical rod 15 is fixed to the base frame 1. The top of the vertical rod 15 is pivotally connected to an armrest 17 through an armrest pivot shaft 16 extending left and right. More specifically, there are two vertical rods 15, which are respectively located on the left and right sides of the front of the base frame 1, and the armrest 17 is connected between the two vertical rods 15. A connecting rod 18 is also provided. In a more specific embodiment, there are also two connecting rods 18, and the vertical rod 15 is hollow. The two connecting rods 18 are respectively inserted into the two vertical rods 15, and the upper end of the connecting rod 18 is eccentrically pivoted with the armrest 17 relative to the armrest pivot shaft 16. The lower end of 18 is eccentrically pivoted to the support frame 2 relative to the first rotating shaft 5 (in this embodiment, in order to simplify the structure, the lower end of the connecting rod 18 is preferably pivoted to the limit pin 14), but the specific pivot point can be determined by technical personnel in this field according to actual conditions such as size. As long as the support frame 2 and the armrest 17 can be rotated together through the connecting rod 18, when the workbench 3 is erected, the armrest 17 can be linked to swing forward and stand up, and when the workbench 3 is lowered (that is, it falls to the ground through the roller 10), the armrest 17 can be linked to swing backward and extend backward. Then, when the workbench 3 is lowered for use, the armrest 17 extends backward above the workbench 3 for the user on the workbench 3 to grasp, and when the workbench 3 is erected and in a folded state, the armrest 17 is also erected, reducing the space occupied in the horizontal direction.

[0038] A treadmill, which uses an automatic slope lifting and folding structure as described above, and arranges a running belt along the front-to-back direction on the top surface of the workbench 3. The running belt can be the running belt structure on any existing treadmill, which is a conventional setting in this field and is not shown in the accompanying drawings. When the front part of the workbench 3 is lifted, the user can simulate climbing and running on the running belt.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the design of this case. Any equivalent changes made based on the key design of this case shall fall within the scope of protection of this case.

Claims

1. An automatic slope lifting and folding structure, characterized by: It comprises a base frame (1), a support frame (2), a workbench (3) and a telescopic rod (4); The base frame (1) is fixedly arranged; The front portion of the support frame (2) is pivotally connected to the base frame (1) via a first rotating shaft (5) extending leftward and rightward, and the rear portion of the support frame (2) is movably arranged; The front portion of the workbench (3) is pivotally connected to the rear portion of the support frame (2) via a second rotating shaft (6) extending leftward and rightward, and the rear portion of the workbench (3) is movably arranged; The telescopic rod (4) is located below the support frame (2) and the workbench (3), with the front portion hinged on the base frame (1) and the rear portion connected to the workbench (3), so that after the telescopic rod (4) is retracted, the workbench (3) can be pulled forward, driving the rear portion of the support frame (2) to swing upward, and supporting the front portion of the workbench (3); after the telescopic rod (4) is extended, it can push the rear portion of the workbench (3) to swing upward, so that the workbench (3) stands upright.

2. The automatic slope lifting and folding structure according to claim 1, characterized in that: The second rotating shaft (6) is positioned higher than the first rotating shaft (5) so that when the telescopic rod (4) contracts and pulls the workbench (3) forward, it can drive the rear portion of the support frame (2) to swing upward and prop up the front portion of the workbench (3).

3. The automatic slope lifting and folding structure according to claim 1, characterized in that: The hinge point between the telescopic rod (4) and the base frame (1) is located below the first rotating shaft (5), and the telescopic rod (4) is lower in the front and higher in the back, and is tilted so that after the telescopic rod (4) is extended, it can push the rear part of the workbench (3) upward to make the workbench (3) stand up.

4. The automatic slope lifting and folding structure according to claim 1, characterized in that: A first limiting portion (7) is formed on the support frame (2), and a second limiting portion (8) is formed on the workbench (3). The first limiting portion (7) and the second limiting portion (8) are located in front of the second rotating shaft (6). When the rear portion of the workbench (3) swings upward, the second limiting portion (8) can abut downward against the first limiting portion (7) to limit the swinging between the workbench (3) and the support frame (2).

5. The automatic slope lifting and folding structure according to claim 4, characterized in that: The first limiting portion (7) is in a U-shape with an opening facing upwards, and the second limiting portion (8) is used to slide into the first limiting portion (7) from the U-shaped opening of the first limiting portion (7) and abut against the first limiting portion (7).

6. The automatic slope lifting and folding structure according to claim 1, characterized in that: A support frame limiting device (9) is provided between the base frame (1) and the support frame (2), and the support frame limiting device (9) is used to limit the swing angle range of the support frame (2).

7. The automatic slope lifting and folding structure according to claim 1, characterized in that: A roller (10) is provided on the bottom side of the rear portion of the workbench (3). When the telescopic rod (4) is extended to make the workbench (3) in a horizontal position, the rear portion of the workbench (3) falls on the ground through the roller (10). The roller (10) is used to roll back and forth. At this time, the telescopic rod (4) contracts to pull the workbench (3) forward, driving the rear portion of the support frame (2) to swing upward, supporting the front portion of the workbench (3), while the roller (10) remains on the ground. The telescopic rod (4) extends to push the rear portion of the workbench (3) to swing upward, so that the workbench (3) stands upright.

8. The automatic slope lifting and folding structure according to claim 1, characterized in that: The front part of the base frame (1) is also provided with a vertical rod (15), the bottom end of the vertical rod (15) is fixed on the base frame (1), the top end of the vertical rod (15) is pivotally connected to an armrest (17) through an armrest pivot shaft (16) extending left and right, and a connecting rod (18) is also provided, the upper end of the connecting rod (18) is pivotally connected to the armrest (17) relative to the armrest pivot shaft (16), and the lower end of the connecting rod (18) is pivotally connected to the support frame (2) relative to the first rotating shaft (5), so that the support frame (2) and the armrest (17) can realize joint rotation through the connecting rod (18), when the workbench (3) is erected, the armrest (17) can be linked to swing forward and erect, and after the workbench (3) is lowered, the armrest (17) can be linked to swing backward and extend backward.

9. A treadmill, characterized in that: An automatic slope lifting and folding structure as described in any one of claims 1 to 8 is applied, and a running belt is arranged on the top surface of the workbench (3) in the front-to-back direction.

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