Rowing machine with foldable machine head

Abstract

The utility model relates to a rowing machine with a foldable machine head, which comprises a bottom frame and the machine head, the machine head is slidably connected with the bottom frame, the rowing machine further comprises a supporting swing rod, the first end of the supporting swing rod is pivoted on the bottom frame, the second end of the supporting swing rod is pivoted on the machine head, and the supporting swing rod, the machine head and the bottom frame form a crank sliding block mechanism. According to the implementation of the slider-crank mechanism, through movement of the slider-crank mechanism, the machine head has a flat folded state relative to the bottom frame and an erected unfolded state relative to the bottom frame, and a stopping piece capable of adjusting the position and stopping sliding of the machine head is further arranged. And the position and the elevation angle of the machine head limited by the stop piece are adjusted by adjusting the position of the stop piece.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sports fitness equipment, concretely relates to a rowing machine. BACKGROUND

[0002] The rowing machine is a kind of fitness device that simulates rowing movement, and the rowing movement can make upper limbs, lower limbs, waist and abdomen, back muscles complete complete contraction and extension movement, reach the exercise effect of whole body muscle, and due to the unique function and structure of the rowing machine, it gradually becomes the new darling of fitness public, and is loved by people in the market, and is listed in the top ten fitness equipment in the world.

[0003] The existing rowing machine cannot be stored in the machine head, causing the rowing machine to occupy too much space, and its transportation is quite inconvenient. Although some rowing machines can be folded and unfolded, the inclination angle of the machine head cannot be adjusted in the unfolded state. UTILITARIAN CONTENT

[0004] Therefore, in view of the above problems, the utility model provides a rowing machine with a foldable machine head.

[0005] The utility model adopts the following technical scheme to realize:

[0006] The utility model provides a rowing machine with a foldable machine head, which comprises a chassis and a machine head, the machine head and the chassis are slidably connected, and further comprises a supporting swing rod, the first end of the supporting swing rod is pivoted to the chassis, and the second end is pivoted to the machine head, the supporting swing rod, the machine head and the chassis form a crank slider mechanism, the crank slider mechanism is implemented as follows: through the movement of the crank slider mechanism, the machine head has a lying folding state relative to the chassis and an upright unfolding state relative to the chassis, the chassis is a hollow frame, comprising a sliding cavity capable of accommodating the machine head, the first end of the supporting swing rod is pivoted to the front end of the chassis, and the second end is pivoted to the bottom of the machine head, the machine head comprises a sliding connection part arranged at the rear of the second end of the supporting swing rod at intervals, the sliding connection part is arranged in the sliding cavity and is slidably connected with the chassis, a stopper is fixedly arranged on the chassis and used for abutting on the sliding connection part to prevent the sliding connection part from continuing to slide forward, the stopper is fixed on the chassis in a manner that the position thereof can be adjusted along the sliding direction of the sliding connection part, and the position of the machine head limited by the stopper is adjusted by adjusting the position of the stopper.

[0007] Preferably, the chassis comprises first and second supports that are spaced apart and arranged side by side, first and second sliding grooves are arranged on the inner sides of the first and second supports respectively, the sliding connection part is provided with a plurality of sliding connection parts, and the plurality of sliding connection parts are symmetrically arranged at the left and right ends of the machine head, and the sliding connection part is slidably connected in the sliding groove.

[0008] Preferably, the sliding connection part comprises a roller in rolling contact with the first or second sliding groove.

[0009] Preferably, the stopper is provided with a waist-shaped hole, and the chassis is provided with a screw passing through the waist-shaped hole.

[0010] Preferably, the device further comprises a locking mechanism for locking the head in the unfolded state.

[0011] Preferably, the locking mechanism comprises a buckling member movably connected to the chassis, a pressing knob screwed to the chassis through the buckling member, and a locked part fixedly arranged on the head, the buckling member is provided with a downwardly open groove, and the locking mechanism is implemented by buckling the groove and the locked part by pressing the buckling member through the pressing knob, so as to lock the head in the unfolded state.

[0012] Preferably, the device further comprises a pad fixedly connected to the chassis for supporting the head in the folded state.

[0013] The rowing machine can be folded when not in use, thereby reducing the space occupation of the rowing machine and facilitating storage or transportation. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a perspective view of the rowing machine with a foldable head in the embodiment;

[0015] Figure 2 is a preliminary exploded view (angle one) of the rowing machine with a foldable head in the embodiment;

[0016] Figure 3 is a preliminary exploded view (angle two) of the rowing machine with a foldable head in the embodiment;

[0017] Figure 4 is a top view of the rowing machine with a foldable head in the embodiment;

[0018] Figure 5 is Figure 4 a sectional view at A-A in the embodiment. DETAILED DESCRIPTION

[0019] To further illustrate the embodiments, the utility model provides has the drawing. These drawings are part of the utility model disclosure, which is mainly used to illustrate the embodiments, and can be combined with the related description of the specification to explain the operating principle of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementations and the advantages of the utility model. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0020] The utility model is further illustrated in conjunction with the drawings and specific embodiments.

[0021] Reference Figures 1-5 As shown in the preferred embodiment of the utility model, a rowing machine with a retractable head is provided, which comprises a chassis 1 for supporting the floor or other bearing surface. This embodiment describes the orientation of the rowing machine in the static use state, and the chassis 1 is in a flat state. A seat cushion 2 is slidably connected to the chassis 1. The head 3 is used to provide a part for the human foot to exert force and step on, and a stretching belt can be installed on the head 3. When using the rowing machine, sit on the seat cushion 2, put both feet on the head 3, and stretch the stretching belt with both hands to obtain the movement effect similar to rowing. The structure of the head 3 itself is a prior art and will not be described again. This embodiment improves the mounting structure of the head 3, so that the head 3 can be retracted when the rowing machine is not in use. Specifically, the chassis 1 is a hollow frame, including a first support 11, a second support 12 and an intermediate support 13. The first support 11 and the second support 12 are parallel and spaced apart, and the front ends of the first support 11 and the second support 12 are fixedly connected through the intermediate support 13. The first end of the supporting swing rod 4 is pivotally connected to the intermediate support 13, and the second end of the supporting swing rod 4 is pivotally connected to the bottom of the head 3. The head 3 is also slidably connected to the chassis 1, so that the supporting swing rod 4, the head 3 and the chassis 1 form a crank slider mechanism. Through the movement of the crank slider mechanism, the head 3 has a flat retracted state relative to the chassis 1 and an erected expanded state relative to the chassis 1.

[0022] In this embodiment, a first sliding groove 110 and a second sliding groove 120 are respectively arranged on the inner sides of the first support 11 and the second support 12, and a sliding cavity capable of accommodating the head 3 is formed between the first support 11 and the second support 12. The head 3 comprises two sliding connection parts 9 symmetrically arranged on the left and right sides thereof, which are arranged at the rear of the second end of the supporting swing rod 4 and in the sliding cavity. The two sliding connection parts 9 are slidably connected to the first sliding groove 110 and the second sliding groove 120 respectively, thereby forming the crank slider mechanism.

[0023] The crank-slider mechanism does not need to strictly follow the form of this embodiment. For example, the sliding connection between the head 3 and the base frame 1 can be replaced by a recessed groove on the head 3 and a linearly extending convex rail on the base frame 1 that slides with it, as long as the sliding connection between the two can be achieved. In this embodiment, the intermediate support 13 is considered part of the base frame 1. The intermediate support 13 can realize the mutual connection between the first support 11 and the second support 12, and also provide a pivot point for supporting the swing arm 4. Obviously, it is conceivable that a support part can also extend from the front end of the first support 11 and the second support 12. This support part serves as the pivot point for supporting the swing arm 4. The support part is fixedly connected to the base frame 1, and therefore is also considered part of the base frame 1. Multiple supporting swing arms 4 can also be provided, for example, two supporting swing arms 4 can be pivotally connected to both sides of the head 3 respectively. However, this embodiment adopts a scheme in which one supporting swing arm 4 is pivotally connected to the bottom of the head 3, which simplifies the structure and provides better support for the head 3.

[0024] In this embodiment, the machine head 3 can be slidably retracted into the sliding cavity, so that when the rowing machine is not in use, the machine head 3 can be retracted to reduce the space occupied by the rowing machine and facilitate its storage or transportation.

[0025] In this embodiment, the sliding connection part 9 includes a roller. By rolling contacting the first slide groove 110 or the second slide groove 120 through the roller structure, sliding noise and frictional wear during the sliding process can be reduced.

[0026] In this embodiment, a stop 5 is fixedly provided on the base frame 1, such as... Figure 5 The stop 5 abuts against the sliding connection 9 to prevent the sliding connection 9 from sliding forward. The stop 5 limits the maximum forward movement distance of the machine head 3, preventing it from detaching forward. The stop 5 is fixed to the base frame 1 in an adjustable manner. More specifically, the stop 5 can be adjusted along the sliding direction of the sliding connection 9, thereby adjusting the position of the machine head 3 limited by the stop 5. The forward sliding distance of the machine head 3 determines its maximum elevation angle. Therefore, in this embodiment, the maximum elevation angle of the machine head 3 can be adjusted by adjusting the position of the stop 5. In this embodiment, the stop 5 has a slotted hole, and the base frame 1 has a screw passing through the slotted hole. If the screw is loosened, the stop 5 can slide along the length of the slotted hole to adjust its position. If the screw is tightened, the position of the stop 5 is locked.

[0027] To lock the head 3 in the deployed state, this embodiment also includes a locking mechanism. For example... Figure 2 , 35. The locking mechanism includes a fastener 6 movably connected to the base frame 1, a clamping knob 7 screwed onto the base frame 1 through the fastener 6, and a locked part 8 fixedly mounted on the machine head 3. In this embodiment, the fastener 6 is a U-shaped plate structure pivotally connected to the base frame 1. This structure allows the fastener 6 to fit snugly against the base frame 1, reducing its space occupation. The fastener 6 has a downward-opening groove 61, and the locked part 8 is a protruding columnar structure located on the side of the machine head 3. Tightening the clamping knob 7 presses down the fastener 6, causing the groove 61 and the locked part 8 to engage, thereby locking the machine head 3 in the unfolded state for convenient use of the rowing machine.

[0028] In other embodiments, the locking mechanism may also employ other structures, such as using a pin in the first slide groove 110 or the second slide groove 120 as a locking structure to prevent the sliding connection 9 from sliding backward.

[0029] like Figure 2 A pad 14 is also fixedly connected to the base frame 1. The pad 14 is located inside the first bracket 11 and the second bracket 12 and is used to support the machine head 3 in the folded state to improve the structural stability of the rowing machine.

[0030] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that any changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A rowing machine with a retractable motor head, comprising a base frame and a motor head, characterized in that: The machine head and the base frame are slidably connected, and the machine head also includes a support swing arm. The first end of the support swing arm is pivotally connected to the base frame, and the second end is pivotally connected to the machine head. The support swing arm, the machine head, and the base frame form a crank-slider mechanism. The crank-slider mechanism is implemented such that the machine head has a retracted state relative to the base frame and an extended state relative to the base frame through the movement of the crank-slider mechanism. The base frame is a hollow frame and includes a sliding cavity that can accommodate the machine head. The first end of the support swing arm is pivotally connected to the front end of the base frame, and the second end is pivotally connected to the bottom of the machine head. The machine head includes sliding connecting parts spaced apart behind the second end of the support swing arm. The sliding connecting parts are located in the sliding cavity and are slidably connected to the base frame. A stop is fixedly provided on the base frame to abut against the sliding connecting parts to prevent the sliding connecting parts from sliding forward. The stop is fixed on the base frame in a way that the position can be adjusted along the sliding direction of the sliding connecting parts. The position of the machine head limited by the stop is adjusted by adjusting the position of the stop.

2. The rowing device with a retractable head as described in claim 1, characterized in that: The base frame includes a first support and a second support arranged side by side with a gap between them. The inner sides of the first support and the second support are respectively provided with a first slide groove and a second slide groove. Multiple sliding connection parts are provided, and the multiple sliding connection parts are symmetrically arranged at the left and right ends of the machine head. The sliding connection parts are slidably connected in the slide groove.

3. The rowing device with a retractable head as described in claim 2, characterized in that: The sliding connection includes a roller that rolls in contact with the first or second slide groove.

4. The rowing device with a retractable head as described in claim 1, characterized in that: The stop has a waist-shaped hole, and the base frame has screws that pass through the waist-shaped hole.

5. The rowing device with a retractable head as described in claim 1, characterized in that: It also includes a locking mechanism for locking the nose in the deployed state.

6. The rowing device with a retractable head as described in claim 5, characterized in that: The locking mechanism includes a fastener movably connected to the base frame, a clamping knob screwed onto the base frame through the fastener, and a locked part fixedly mounted on the machine head. The fastener has a downward-opening groove. The locking mechanism is implemented by tightening the clamping knob to press down the fastener, causing the groove and the locked part to engage, thereby locking the machine head in the unfolded state.

7. The rowing device with a retractable head as described in claim 1, characterized in that: It also includes a pad, which is fixedly connected to the base frame and is used to support the machine head in the folded state.

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