CN2696675Y - The folding structure of the elliptical stepper - Google Patents

Abstract

The utility model relates to a folding structure of an elliptical treadmill, which is characterized in that an arc plate is arranged at the rear end part of a frame base of the elliptical treadmill, and the arc plate is provided with a screw rod; the guide rail frame is provided with two guide rails which are symmetrically spaced at a proper distance, the front ends of the two guide rails are connected by a cross rod, and the middle section of the cross rod is concavely provided with a fan-shaped groove; when the cross bar of the guide rail frame is sleeved on the inner arc surface of the arc plate of the frame base, the fan-shaped groove can accommodate a screw rod of the arc plate, so that the aim of connecting and limiting two components can be achieved, and the guide rail frame can rotate, move, lie flat or fold by adjusting the tightness of the screw rod and matching with the fan-shaped groove of the cross bar.

Description

The folding structure of the elliptical stepper

technical field

The utility model relates to machinery, in particular to a folding structure of an elliptical stepper, especially a guide rail frame connected with a single pivot joint at the rear end of the frame base, so that the guide rail frame can be placed horizontally and folded upwards. The folding structure of the elliptical stepper with reduced volume.

Background technique

As we all know, there are many types of steppers on the market, among which there is a foldable structure of an elliptical exercise machine, which is provided with a frame on the elliptical exercise machine, and a bar, a bottom bar, and two handles are arranged on the frame. Hold the rod and a transmission wheel, and set a crankshaft on both sides of the transmission wheel, and the crankshaft moves in an elliptical trajectory with the operation of the transmission wheel, and is connected to the rear of the frame with a guide rail set On the bottom bar, each crank shaft can slide its end on the guide rail set. The guide rail set has two semi-arc-shaped connecting parts at its front end, and a long groove is opened in the middle of each connecting part. , each connecting part can be snapped onto the rear bottom bar of the vehicle frame, and a screw hole is perforated on both sides of the bottom bar, and the two screw holes are respectively corresponding to the groove positions of the two connecting parts; the two locking pieces It is used to lock the screw holes on both sides of the bottom bar respectively, so as to tighten the connecting part of the guide rail set, so that the guide rail set is fixed on the rear bottom bar of the frame;

Although the above-mentioned structure can make the guide rail group and the bottom bar at the rear of the frame achieve the function of being connected and foldable, it still has the following disadvantages: the symmetrical connection parts provided at the front ends of the guide rail group must be Absolutely the same length, and must be located on the same horizontal line, so that when the guide rail set is fastened to the rear bottom bar of the frame, the exact smooth joint can be obtained. On the contrary, the connected guide rail set will have unevenness phenomenon, which affects the coordination of the overall elliptical motion machine. However, it is difficult to achieve the above-mentioned requirements and maintain a certain production volume. The reason is that: with the current In terms of the material selection of the main base frame, the structure is made of metal strips or tubes by bending and welding. As far as the structure of the guide rail group of the present utility model is concerned, during the manufacturing process, the two guide rails must be parallel and symmetrical. It is not difficult to complete, but it is difficult to maintain the same length after welding the joints at the front ends of the two guide rails;

Furthermore, the two connecting parts of the guide rail set are respectively engaged with the rear bottom bar of the vehicle frame, which is bound to be troublesome, time-consuming, and inconvenient no matter when performing assembly operations or folding adjustment operations; it needs to be improved.

Utility model content

According to the purpose of this utility model, aiming at the shortcomings of the above-mentioned common elliptical stepper, a folding structure of the elliptical stepper is provided. 1, the transmission wheel and the movable handrail rods on both sides; two pedals, one end is respectively pivoted on both sides of the transmission wheel, the other end is connected with a pulley, the upper end of the pedal is provided with a pedal, and two connecting rods are connected respectively. Between the two pedals and the two handrails; a guide rail frame, connected to the rear end of the frame base, which has two symmetrical guide rails, which can provide the pulleys for the two pedals; the frame of the elliptical stepper There is a circular arc plate at the rear end of the base, and the circular arc plate is equipped with a screw rod and a guide rail frame. It has two symmetrical guide rails at an appropriate distance. The front ends of the two guide rails are connected by a cross bar, and the cross bar is located in the middle. There is a fan-shaped groove in the concave section; when the cross bar of the guide rail frame is sleeved on the inner arc surface of the arc plate of the frame base, the fan-shaped groove can provide the screw accommodation of the arc plate to achieve link positioning and rotatable guide rail frame The effect of being in a flat state or a folded state; wherein, the pedal is fixed with a base, and the two sides of the base are pivoted with symmetrical connecting rods. Appropriate gaps; and, the base and the front and rear ends of the pedals are fixed with hooks, and two elastic ropes are fastened on the hooks in a staggered manner; accordingly, the pedals not only have the function of sliding back and forth, but also can It can be returned to its original position by the elastic cord buckled front and back.

Description of drawings:

Fig. 1 is the three-dimensional appearance schematic diagram of the utility model;

Fig. 2 is a partial three-dimensional appearance exploded schematic diagram of the utility model;

Fig. 3 is a partial cross-sectional action schematic diagram of the utility model;

Fig. 4 is the schematic diagram of pedal structure combination of the present utility model;

Fig. 5 is a schematic side view of the pedal structure of the present invention.

Detailed ways;

As shown in accompanying drawings 1 to 3, the utility model includes a frame base 10 in a vertical triangular shape, and the front end of the frame base 10 is provided with a cross bar 11, so that the frame base 10 can be stabilized Placed on the ground, the upper end of the frame base 10 is respectively provided with a control instrument panel 12, a horizontal armrest frame 13 and movable armrest bars 14 on both sides; the middle of the frame base 10 is provided with a transmission wheel 15 Two pedals 20, one end is respectively pivotally arranged on both sides of the transmission 15, the other end is connected with a sliding transmission 21, and the upper end of the pedal 20 is provided with a pedal 22; two connecting rods 30 are respectively connected to the two pedals 20 Between the two handrail bars 14, a guide rail frame 40 is connected to the rear end of the vehicle frame base 10, which has two symmetrical guide rails 41, which can provide the pulleys 21 of the two pedal bars 20 to place; the vehicle frame base 10 is provided with a circular arc plate 16 at the rear end, and this circular arc plate 16 is equipped with a screw rod 17; The guide rail frame 40 is connected with a circular cross bar 42 at the front ends of the two guide rails 41, and the cross bar 42 is located in the middle section concave. A fan-shaped groove 421 is provided to accommodate the screw rod 17; wherein the inner arc surface of the circular arc plate 16 has the same radius as the circular cross bar 42; by the above-mentioned components, when the pedal rod 20 moves, its front side The connecting rod 30 pivoted at the end can move accordingly, and then the handrail bar 14 is driven to swing synchronously, and the pulley 21 at its rear end can slide on the guide rail 41 of the guide rail frame 40; moreover, when the guide rail frame 40 is to be folded , the screw rod 17 of the circular arc plate 16 can be unscrewed, so that the bottom of the screw rod 17 is withdrawn from the pressing of the bottom surface of the fan-shaped groove 421, so that the guide rail frame 40 can be used for the circular arc plate by its cross bar 42 and its fan-shaped groove 421 respectively. 16 and the screw rod 17 are nested as a movable pivot point, and after the guide rail frame 40 is folded up to the position, then the screw rod 17 is fastened so that its bottom is pressed against the bottom surface of the fan-shaped groove 421, so that the function of stable positioning can be achieved; When the rail frame 40 is to be adjusted from the upright folded state to the flat state, the steps are the same as above;

Also be fixed on the circular arc plate 16 of the bottom bar rear end of vehicle frame base 10, its opening is located at the about 1/4 circle place of rear end lower half section, like this, when cross bar 42 is sleeved on circular arc plate 16 places When the screw rod 17 of the arc plate 16 is combined with the screw rod 17 to make its thread section accommodated in the fan-shaped groove 421 of the cross bar 42, it can Make the cross bar 42 fully embedded in the circular arc plate 16 to form a movable pivot shaft; and, in order to make the guide rail frame 40 fold upwards from the horizontal state, the angle of rotation can exceed 90 degrees, so, The angled opening of the fan-shaped groove 421 is greater than 90 degrees, and when the rail frame 40 is in a horizontal state, one side of the threaded section of the screw rod 17 is attached to the angled side of the fan-shaped groove 421, and the bottom surface of the threaded section can be pushed up. press on the other side;

As shown in accompanying drawing 4 and accompanying drawing 5, when the pedal 22 of the utility model is actuated, the actuating path of the pedal 22 is generally in an elliptical shape, in order to make the foot stand on the pedal 22 and follow the The change of the elliptical path is used to rotate relative to the foot joints. A base 23 is fixed on the upper end of the pedal rod 20. A group of symmetrical connecting rods 24 are pivotally arranged on the front and rear of the base 23 on both sides. On the upper ends of the two groups of symmetrical connecting rods 24 They are respectively pivoted on both sides of the pedal 22, and an appropriate gap is reserved between the base 23 and the pedal 22; and the front and rear ends of the base 23 and the pedal 22 are fixed with hooks 231, 221, and are matched with two elastic The rope 25 is buckled on the hooks 231 and 221 in a staggered manner; the pedal 22 has the function of sliding back and forth when moving on an elliptical path, and the elastic rope 25 buckled back and forth can make it return to the original position. Located in the middle of the base 23.

Claims (7)

1, a kind of foldable structure of elliptical stepper, this elliptical stepper includes: a carriage base is provided with operating board, horizontal type arm-rest frame, drive and the position movable bar in both sides; Two treadles, an end is hubbed on the both sides of drive respectively, and in addition termination is provided with pulley, and treadle upper end group is provided with pedal, and two connecting rods connect respectively and are located between two treadles and two bars; One guide rail bracket connects the rearward end that is located at carriage base, and it has the guide rail of two symmetries, can provide the pulley of two treadles to place; It is characterized in that: this vehicle frame rearward end is provided with an arc plate, and this arc plate is to be equiped with a screw rod, and this guide rail bracket is equipped with a cross bar in two guide rail front ends and connects, and this cross bar position is concaved with a fan groove at interlude.

2, the foldable structure of a kind of elliptical stepper according to claim 1 is characterized in that: the intrados of said arc plate is identical with the radius of circular cross bar.

3, the foldable structure of a kind of elliptical stepper according to claim 1 is characterized in that: said arc plate is provided with openend at the about quadrant of rear end lower semisection place.

4, the foldable structure of a kind of elliptical stepper according to claim 1 is characterized in that: the fan groove angle opening of said cross bar is greater than an angle of 90 degrees.

5, the foldable structure of a kind of elliptical stepper according to claim 1 is characterized in that: after said screw rod screws, can conflict at angle one side of fan groove in its bottom.

6, the foldable structure of a kind of elliptical stepper according to claim 1, it is characterized in that: said treadle upper end is installed with a base, these base both sides are forward and backward to be pivoted with one group of symmetry connecting rod, is hubbed on the both sides of pedal respectively at two groups of symmetry small ends; This base and pedal front and back end all are fixed with fastener, and adopt the interlace mode buttons to be located on the fastener with two elastic ropes, make pedal can before and after slippage.

7, the foldable structure of a kind of elliptical stepper according to claim 1 is characterized in that: be reserved with suitable gap between said base and pedal.

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