Frame lifting mechanism for an exercise machine

Abstract

The utility model relates to a kind of lifting mechanism of frame of body-building equipment, it includes support pedestal and is installed on the fixed frame, frame fixing piece and lifting assembly of support pedestal.This utility model designs the transmission member as two parts, i.e.first support arm and second support arm, the connecting position of first support arm and second support arm is hinged with fixed frame, so that the hinge position point is called fulcrum, while the length of first support arm is greater than the length of second support arm, so that transmission member becomes a labor-saving lever, so that push rod motor only needs to output smaller power to realize the adjustment of frame lifting angle, reduces energy loss, achieves the effect of energy saving.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, specifically to a frame lifting mechanism for fitness equipment. Background Technology

[0002] An exercise bike is a fairly common indoor exercise equipment. It mainly allows users to pedal with their feet, which drives the flywheel to rotate through the transmission mechanism (such as a combination of chainring and chain), and then the resistance wheel provides resistance to simulate riding uphill.

[0003] However, in actual use of the aforementioned exercise bikes, users are simply repeating the same pedaling motion in place, without experiencing the tilting sensation felt when riding a regular bicycle uphill. Therefore, using an exercise bike can easily lead to monotony and boredom, reducing the user's willingness to use it. To address this, some exercise bikes now incorporate lift motors that directly drive the front support of the frame to adjust the bike's angle. However, this requires a relatively high-powered lift motor to raise and lower the frame, consuming more electricity and not adhering to energy-saving principles. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a frame lifting mechanism for fitness equipment, which can drive the frame to lift with very little force, thereby simulating the real riding experience and reducing energy consumption.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A frame lifting mechanism for fitness equipment includes a support base and a fixing frame, a frame fixing component, and a lifting assembly mounted on the support base. The frame fixing component is fixedly connected to the frame assembly of the fitness equipment, and the lower end of the frame fixing component is provided with a first hinge part and a second hinge part. The first hinge part is close to the seat support rod of the frame assembly, and the second hinge part is close to the instrument support rod of the frame assembly; the first hinge part of the frame fixing component is hinged to the fixing frame. The lifting assembly includes a push rod motor, a transmission component, and a connecting component. The end of the push rod motor away from the push rod is hinged to the support base. The transmission component includes a first support arm and a second support arm connected together. The connection between the first support arm and the second support arm is pivotally connected to the fixed frame via a bushing, and the length of the first support arm is greater than that of the second support arm. The end of the first support arm is connected to the push rod of the push rod motor, and the end of the second support arm is connected to the hinged part via the connecting component.

[0006] The end of the first support arm is provided with a U-shaped seat, and the push rod of the push rod motor is hinged to the U-shaped seat.

[0007] The first support arm and the second support arm are connected to form an L-shaped structure.

[0008] The upper end of the connector forms a first U-shaped groove, and the lower end forms a second U-shaped groove. The connector is hinged to the second hinge part through the first U-shaped groove, and the connector is hinged to the second support arm through the second U-shaped groove.

[0009] The support base includes a front leg tube, a rear leg tube, and a main frame tube. One end of the main frame tube is connected to the front leg tube, and the other end is connected to the rear leg tube. The lower end of the fixing frame is fixedly connected to the main frame tube, and the upper end is hinged to the first hinge part of the fixing member.

[0010] Adjustable foot pads are provided at the lower ends of the front and rear foot tubes.

[0011] By adopting the above solution, this utility model designs the transmission component into two parts, namely a first support arm and a second support arm. The connection point between the first support arm and the second support arm is pivotally connected to the fixed frame, and this pivot point is called the fulcrum. At the same time, the length of the first support arm is greater than the length of the second support arm, so that the transmission component becomes a force-saving lever. This allows the push rod motor to output only a small amount of power to adjust the lifting angle of the frame, reducing energy consumption and achieving energy saving. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the fitness equipment according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the frame lifting mechanism of this utility model (omitting some main frame tubes and fixing frames). Figure 3 This is a schematic diagram of the lifting component structure; Figure 4 This is a structural diagram simulating cycling uphill; Figure 5 This is a schematic diagram simulating the structure of a bicycle going downhill.

[0013] Label Explanation: Frame assembly 10; Instrument support rod 11; Seat support rod 12; Support base 20; front leg tube 21; rear leg tube 22; main frame tube 23; adjusting feet 24; Fixture 30; Frame fixing component 40; first hinge part 41; second hinge part 42; Lifting assembly 50; push rod motor 51; push rod 511; transmission component 52; first support arm 521; second support arm 522; bushing 523; U-shaped seat 524; connector 53; first U-shaped groove 531; second U-shaped groove 532. Detailed Implementation

[0014] like Figure 1-3 As shown, this utility model discloses a frame lifting mechanism for fitness equipment. The frame lifting mechanism is located below the frame assembly 10 of the fitness equipment and is used to adjust the tilt angle of the frame.

[0015] The frame assembly 10 includes an instrument panel support rod 11 and a seat support rod 12. The instrument panel assembly (including handlebars) is mounted on the instrument panel support rod 11, and the seat support rod 12 is mounted on the seat support rod 12. The specific structure of the frame assembly 10 is prior art, and will not be described in detail here.

[0016] The frame lifting mechanism includes a support base 20 and a fixing frame 30, a frame fixing member 40, and a lifting assembly 50 mounted on the support base 20.

[0017] The frame fixing component 40 is fixedly connected to the frame assembly 10 of the fitness equipment. The lower end of the frame fixing component 40 has a first hinge portion 41 and a second hinge portion 42. The first hinge portion 41 is near the seat support rod 12 of the frame assembly 10, and the second hinge portion 42 is near the instrument support rod 11 of the frame assembly 10. The first hinge portion 41 of the frame fixing component 40 is hinged to the fixing frame 30.

[0018] The lifting assembly 50 includes a push rod motor 51, a transmission component 52, and a connecting component 53. The end of the push rod motor 51 furthest from the push rod is hinged to the support base 20. The transmission component 52 includes a first support arm 521 and a second support arm 522 connected together. The connection between the first support arm 521 and the second support arm 522 is pivotally connected to the fixed frame 30 via a bushing 523, and the length of the first support arm 521 is greater than that of the second support arm 522. The end of the first support arm 521 is connected to the push rod 511 of the push rod motor 51, and the end of the second support arm 522 is connected to the hinged part via the connecting component 53.

[0019] In this embodiment, the end of the first support arm 521 is provided with a U-shaped seat 524, and the push rod 511 of the push rod motor 51 is hinged to the U-shaped seat 524. The first support arm 521 and the second support arm 522 are connected to form an L-shaped structure.

[0020] The upper end of the connector 53 forms a first U-shaped groove 531, and the lower end forms a second U-shaped groove 532. The connector 53 is hinged to the second hinge part 42 through the first U-shaped groove 531, and the connector 53 is hinged to the second support arm 522 through the second U-shaped groove 532.

[0021] The support base 20 includes a front leg tube 21, a rear leg tube 22, and a main frame tube 23. One end of the main frame tube 23 is connected to the front leg tube 21, and the other end is connected to the rear leg tube 22. The lower end of the fixing frame 30 is fixedly connected to the main frame tube 23, and the upper end is hinged to the first hinge part 41 of the fixing member. Adjustable feet 24 are provided at the lower ends of the front leg tube 21 and the rear leg tube 22.

[0022] The working principle of the frame lifting mechanism of this utility model is as follows: like Figure 4 As shown, when simulating cycling uphill, the frame angle needs to be adjusted upwards. Specifically, the push rod motor 51 is activated, the push rod 511 extends to push the first support arm 521 forward, and the entire transmission component 52 rotates around the bushing 523 as the fulcrum. The end of the second support arm 522 swings upwards and drives the fixed frame 30 to swing through the connecting piece 53. At this time, one end of the first hinge 41 of the fixed frame 30 remains stationary, while one end of the second hinge 42 swings upwards, raising the handle on the instrument support rod 11, thus simulating cycling uphill.

[0023] like Figure 5 As shown, when simulating a downhill bike ride, the frame angle needs to be adjusted downwards. Specifically, the push rod motor 51 is activated, the push rod 511 retracts, pulling the first support rod back. The entire transmission component 52 rotates around the bushing 523 as a fulcrum, and the end of the second support arm 522 swings downwards, driving the fixed frame 30 to swing through the connecting piece 53. At this time, one end of the first hinge 41 of the fixed frame 30 remains stationary, while one end of the second hinge 42 swings downwards, causing the handlebar on the instrument support rod 11 to lower, thus simulating a downhill bike ride.

[0024] During the simulation of cycling uphill and downhill, the transmission component 52 uses its pivot point with the fixed frame 30 as the fulcrum. The first support arm 521 and the second support arm 522 form a lever structure. Since the length of the first support arm 521 is greater than the length of the second support arm 522, the push rod motor 51 pushes or pulls the first support arm 521 in a force-saving mode, requiring only a small pushing force. Because the length of the second support arm 522 is less than the length of the first support arm 521, the exercise process is in a reverse force-consuming mode, preventing damage to the push rod motor 51 during exercise.

[0025] Therefore, this utility model designs the transmission component 52 into two parts, namely the first support arm 521 and the second support arm 522, and pivotally connects the connection point of the first support arm 521 and the second support arm 522 to the fixed frame 30, so that the pivot point is called the fulcrum. At the same time, the length of the first support arm 521 is greater than the length of the second support arm 522, so that the transmission component 52 becomes a force-saving lever, so that the push rod motor 51 only needs to output a small amount of power to adjust the lifting angle of the frame, thereby reducing energy loss and achieving the effect of energy saving.

[0026] The above description is merely an embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A frame lifting mechanism for fitness equipment, characterized in that: Includes a support base and a mounting bracket, frame fasteners, and lifting assembly mounted on the support base; The frame fixing component is fixedly connected to the frame assembly of the fitness equipment, and the lower end of the frame fixing component is provided with a first hinge part and a second hinge part. The first hinge part is close to the seat support rod of the frame assembly, and the second hinge part is close to the instrument support rod of the frame assembly; the first hinge part of the frame fixing component is hinged to the fixing frame. The lifting assembly includes a push rod motor, a transmission component, and a connecting component. The end of the push rod motor away from the push rod is hinged to the support base. The transmission component includes a first support arm and a second support arm connected together. The connection between the first support arm and the second support arm is pivotally connected to the fixed frame via a bushing, and the length of the first support arm is greater than that of the second support arm. The end of the first support arm is connected to the push rod of the push rod motor, and the end of the second support arm is connected to the hinged part via the connecting component.

2. The frame lifting mechanism of a fitness equipment according to claim 1, characterized in that: The end of the first support arm is provided with a U-shaped seat, and the push rod of the push rod motor is hinged to the U-shaped seat.

3. The frame lifting mechanism of a fitness equipment according to claim 1, characterized in that: The first support arm and the second support arm are connected to form an L-shaped structure.

4. The frame lifting mechanism of a fitness equipment according to claim 1, characterized in that: The upper end of the connector forms a first U-shaped groove, and the lower end forms a second U-shaped groove. The connector is hinged to the second hinge part through the first U-shaped groove, and the connector is hinged to the second support arm through the second U-shaped groove.

5. The frame lifting mechanism of a fitness equipment according to claim 1, characterized in that: The support base includes a front leg tube, a rear leg tube, and a main frame tube. One end of the main frame tube is connected to the front leg tube, and the other end is connected to the rear leg tube. The lower end of the fixing frame is fixedly connected to the main frame tube, and the upper end is hinged to the first hinge part of the fixing member.

6. The frame lifting mechanism of a fitness equipment according to claim 5, characterized in that: Adjustable pads are provided at the lower ends of the front and rear leg tubes.

Images