Force type sitting pedal trainer

Abstract

The utility model discloses a strength type sitting pedaling trainer which comprises a main frame, the bottom of the main frame is fixedly arranged on the ground, pedaling force frames are arranged on the two sides of the top of the main frame, adjustable counterweight units are arranged on the sides of the pedaling force frames, pedaling force rods are horizontally and fixedly arranged at the head ends of the pedaling force frames, one ends of the pedaling force rods are fixedly connected with the pedaling force frames, and pedals are fixedly arranged at the other ends of the pedaling force rods. The tail end of the pedaling frame is hinged to the top of the main frame; the adjustable balance weight unit comprises a U-shaped balance weight rod which is fixedly arranged on the side of the pedaling frame and is perpendicular to the pedaling frame, sliding rods are fixedly arranged on rod bodies at the two ends of the U-shaped balance weight rod, and a plurality of balance weight pieces are arranged on the sliding rods in a sliding mode and are axially limited through limiting assemblies and the sliding rods. By adjusting the position of the weight stack on the sliding rod, the balance weight of the sitting pedal trainer can be adjusted; the position of the weight stack relative to the sliding rod is limited through the limiting assembly, the situation that the weight is changed due to displacement in the using process is prevented, meanwhile, the anti-theft effect can be achieved through the U-shaped weight lever, and the anti-theft device is suitable for the technical field of sports equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of sports equipment, and specifically relates to a strength type sitting leg press trainer. Background Art

[0002] A sitting leg press trainer, also called a leg press machine, is a kind of fitness equipment. Commonly available types include those for two or three people, and there are two categories: outdoor and indoor. Outdoor sitting leg press trainers are commonly seen in community fitness squares, sports squares, schools, parks, and various outdoor sports and fitness venues.

[0003] Commonly used outdoor sitting leg press trainers often use fixed weights as counterweights, and their counterweights cannot be adjusted, which cannot meet the usage needs of different training populations. Content of the Utility Model

[0004] The utility model provides a strength type sitting leg press trainer, which is used to solve the problem that commonly used outdoor sitting leg press trainers in traditional technologies often use fixed weights as counterweights, and their counterweights cannot be adjusted, which cannot meet the usage needs of different training populations.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A strength type sitting leg press trainer, including a main frame, characterized in that: the bottom of the main frame is fixedly arranged on the ground, both sides of the top are provided with leg press frames, a adjustable counterweight unit is arranged on the side of the leg press frame, a leg press rod is horizontally and fixedly arranged at the head end of the leg press frame, one end of the leg press rod is fixedly connected with the leg press frame, the other end is fixedly provided with a footrest, the tail end of the leg press frame is hinged with the top of the main frame, an L-shaped support rod is fixedly arranged below the tail end of the leg press frame, the L-shaped support rod is fixedly connected with the main frame through a cross beam, and a seat plate and a backrest plate are arranged on the top of the L-shaped support rod;

[0007] The adjustable counterweight unit includes a U-shaped counterweight rod fixedly arranged on the side of the leg press frame and perpendicular to it, sliding rods are fixedly arranged on the rod bodies at both ends of the U-shaped counterweight rod, and a number of counterweight plates are slidably arranged on the sliding rods and axially limited with the sliding rods through a limiting component.

[0008] Further, the limiting component includes limiting protrusions and annular rings. A number of limiting protrusions are arranged perpendicular to the axis of the sliding rod and are spaced along its axial direction. Annular rings are fixedly arranged on both end faces of each counterweight plate, and a limiting groove with an annular structure adapted to the limiting protrusions is formed between the annular rings on both end faces of each counterweight plate.

[0009] Further, grooves adapted to the limiting protrusions are arranged on the annular rings, and the grooves on the two annular rings of the same counterweight plate are symmetrically arranged with respect to the counterweight plate.

[0010] Further, the pedaling force frame includes an upper arm, a forearm, and a connecting arm. The head end of the upper arm is fixedly connected to the top end of the forearm. The body of the forearm is fixedly connected to the head end of the connecting arm. The tail end of the upper arm and the tail end of the connecting arm are rotatably connected to the hinge seat at the top end of the main frame through a limit main shaft. The pedaling rod is horizontally arranged at the bottom end of the forearm.

[0011] Further, the main frame includes two columns, which are fixedly connected by a cross beam. A reference rod is fixedly arranged in parallel below the cross beam, and both ends of the reference rod are fixedly connected to the two columns. The hinge seat is fixedly arranged at the top end of the column.

[0012] Further, the rod bodies at both ends of the U-shaped counterweight rod pass through the limit shaft and are perpendicularly and fixedly connected to the upper arm of the pedaling force frame through pins. The limit shaft is perpendicularly and fixedly connected to the upper arm of the pedaling force frame.

[0013] Further, the foot pedal is inclined forward at 45°. The foot pedal is provided with a foot pedal groove, and the foot pedal groove is provided with anti-slip lines.

[0014] Due to the adoption of the above structure, the technical progress obtained by the present utility model compared with the prior art is as follows:

[0015] During use, the trainer sits on the seat board, presses the back tightly against the backrest board, places both feet on the foot pedal, and then uses the leg strength to repeatedly push the foot pedal upward with both feet. The foot pedal pushes the pedaling force frame to move back and forth through the pedaling rod. The pedaling force frame swings back and forth around the limit main shaft. By adjusting the position of the counterweight plate on the sliding rod, the counterweight of the sitting pedaling trainer can be adjusted; the position of the counterweight plate relative to the sliding rod is limited through the limit component to prevent the counterweight plate from displacing relative to the sliding rod and changing the counterweight during use. At the same time, several counterweight plates are limited on the pedaling force frame through the U-shaped counterweight rod and cannot be separated from the pedaling force frame. While realizing adjustable counterweight, it can also play an anti-theft role when used as outdoor sports equipment, and is applicable to the technical field of sports equipment. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model.

[0017] In the drawings:

[0018] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0019] Figure 2 is a schematic structural diagram of another angle of an embodiment of the present utility model

[0020] Figure 3 is a schematic structural diagram of the adjustable counterweight unit in an embodiment of the present utility model;

[0021] Figure 4 Schematic diagram of the U-shaped counterweight rod in the embodiment of the present utility model;

[0022] Figure 5 Cross-sectional view of the counterweight plate in the embodiment of the present utility model;

[0023] Figure 6 Assembly drawing of the counterweight plate and the U-shaped counterweight rod in the embodiment of the present utility model.

[0024] Marked components:

[0025] 01-adjustable counterweight unit, 11-U-shaped counterweight rod, 12-slide rod, 121-slide rod body, 122-limit projection, 123-limit shaft, 13-counterweight plate, 131-counterweight plate body, 132-annular ring, 133-groove, 134-limit groove;

[0026] 02-main frame, 21-reference rod, 22-limit main shaft, 23-armrest, 03-cross beam, 04-L-shaped support rod, 05-seat plate, 06-backrest plate, 07-pedaling rod, 71-footrest, 710-footrest groove, 08-forearm, 09-upper arm, 10-connecting arm, 00-pin. Specific implementation mode

[0027] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present utility model, and are not used to limit the present utility model.

[0028] The present utility model discloses a power type sitting leg press trainer, as Figure 1As shown, it includes a main frame 02, the bottom of the main frame 02 is fixedly installed on the ground, and pedal force frames are provided on both sides of the top. An adjustable counterweight unit 01 is provided on the side of the pedal force frame. The adjustable counterweight unit 01 is located outside the pedal force frame and in the middle of the top of the pedal force frame. A pedal force rod 07 is fixedly installed at the front end of the pedal force frame. The rear end of the pedal force frame is hinged to the top of the main frame 02. An L-shaped support rod 04 is fixedly installed below the rear end of the pedal force frame. A seat plate 05 and the L-shaped support rod 04 are arranged on one side of the rear end of the pedal force frame. The L-shaped support rod 04 is fixedly connected to the main frame 02 through a cross beam 03. A seat plate 05 and a backrest plate 06 are provided at the top of the L-shaped support rod 04; the L-shaped support rod 04 is arranged upside down, on one side of the rear end of the pedal force frame, and its bottom is buried below the ground, which can support the main frame 02 and improve the overall stability of the equipment. The top is fixedly connected to the cross beam 03. A foot pedal 71 is arranged on one side of the front end of the pedal force frame. A U-shaped handrail 23 is vertically arranged on the column of the main frame 02. During use, the trainee sits on the seat plate 05, with the back closely against the backrest plate 06, places both feet on the foot pedal 71, tightly holds the handrail 23 with both hands, and then uses the leg strength to repeatedly push the foot pedal 71 upward with both feet. The foot pedal 71 pushes the pedal force frame to move back and forth through the pedal force rod, and the pedal force frame swings back and forth around the limit main shaft 22.

[0029] As a specific embodiment, as Figure 3 shown, the adjustable counterweight unit 01 includes a U-shaped counterweight rod 11 fixedly installed on the side of the pedal force frame and perpendicular to it. Slide rods 12 are fixedly installed on the rod bodies at both ends of the U-shaped counterweight rod 11. A plurality of counterweight plates 13 are slidably arranged on the slide rods 12 and axially limited to the slide rods 12 through a limiting component.

[0030] The U-shaped counterweight rod 11 limits the moving range of the counterweight plates 13, making it impossible for them to break away from the main frame 02 and only allowing them to move on the U-shaped counterweight rod 11. A plurality of counterweight plates 13 can be reasonably distributed according to the strength of different groups. When a larger counterweight is required, the rear counterweight plates 13 can be appropriately moved to the front. When a smaller counterweight is required, the front counterweight plates 13 can be appropriately moved to the rear.

[0031] As a specific embodiment, as Figures 4 - 6As shown in the figure, the limiting component includes a limiting protrusion 122 and a ring 132. A plurality of limiting protrusions 122 are arranged perpendicular to the axis of the sliding rod 12 and are spaced along its axial direction. Ring-shaped limiting grooves 134 adapted to the limiting protrusions 122 are formed between the ring 132 on each end face of each counterweight piece 13. A groove 133 adapted to the limiting protrusion 122 is provided on the ring 132. The grooves 133 of the two rings 132 on the same counterweight piece 13 are symmetrically arranged with respect to the counterweight piece 13. The distance between adjacent protrusions is the same as the distance between the limiting grooves 134 on adjacent counterweight pieces 13. The sliding rod 12 includes a sliding rod body 121 with a tubular structure, and a plurality of limiting protrusions 122 are fixed on the sliding rod body 121. The counterweight piece 13 includes a counterweight piece body 131, and the ring 132 is fixedly installed on both end faces of the counterweight piece body 131 through a pin 00.

[0032] During the training process, the limiting protrusion 122 is located in the limiting groove 134 between the two rings 132 on the counterweight piece 13. The counterweight piece 13 is stuck by the limiting protrusion 122, and the limiting protrusion 122 limits the counterweight piece 13; when it is necessary to adjust the position of the counterweight piece 13 at both ends of the U-shaped counterweight rod 11, rotate the counterweight piece 13 to make the groove 133 on the ring 132 rotate to the position of the limiting protrusion 122, release the restriction of the limiting protrusion 122, and then the counterweight piece 13 can be moved along the sliding rod 12. After passing through the middle position of the U-shaped counterweight rod 11 and reaching the other end, the counterweight piece 13 is limited again according to the above opposite steps to achieve counterweight adjustment. This structure can realize the adjustable position of the counterweight piece 13, and further realize the adjustable counterweight of the equipment training. Through the limiting structure of the limiting protrusion 122 and the limiting groove 134, the position of the counterweight piece 13 relative to the U-shaped counterweight rod 11 can be relatively fixed, preventing the counterweight piece 13 from shifting during the training process and causing the counterweight to change.

[0033] In the prior art, the counterweight piece 13 is often placed on a storage rack or on the ground. When adjusting the counterweight, it needs to be moved around. When not in use, the scattered counterweight pieces 13 also need to be sorted onto the storage rack. The counterweight piece 13 in the present utility model is limited on the U-shaped counterweight rod and does not need to be moved back and forth and sorted like the counterweight piece 13 in the prior art. At the same time, when used outdoors, the U-shaped counterweight rod 11 can also play a role in anti-theft.

[0034] As a specific embodiment, such as Figure 1As shown in the figure, the pedaling force frame includes an upper arm 09, a forearm 08, and a connecting arm 10. The head end of the upper arm 09 is fixedly connected to the top end of the forearm 08. The body of the forearm 08 is fixedly connected to the head end of the connecting arm 10. The tail end of the upper arm 09 and the tail end of the connecting arm 10 are rotatably connected to the hinge seat at the top end of the main frame 02 through a limit main shaft 22. The pedaling rod 07 is horizontally arranged at the bottom end of the forearm 08. The connecting arm 10 makes the upper arm 09 and the forearm 08 form a stable structure. The pedaling rod 07 is vertically arranged.

[0035] As a specific embodiment, as Figure 1 shown, the main frame 02 includes two columns, which are fixedly connected by a cross beam 03. A reference rod 21 is fixedly arranged in parallel below the cross beam 03. Both ends of the reference rod 21 are fixedly connected to the two columns. The hinge seat is fixedly arranged at the top end of the column. The rod bodies at both ends of the U-shaped counterweight rod 11 pass through the limit shaft 123 and are perpendicularly and fixedly connected to the upper arm 09 of the pedaling force frame through a pin 00. The limit shaft 123 is perpendicularly and fixedly connected to the upper arm 09 of the pedaling force frame. The tops of the two columns are inclined at a certain angle. The bottoms of the columns and the bottoms of the L-shaped support rods 04 are buried below the ground, and the reference rod 21 is the horizon.

[0036] As a specific embodiment, as Figure 2 shown, the pedal 71 is inclined forward at 45°. There is a pedal groove 710 on the pedal 71, and anti-slip lines are provided in the pedal groove 710. By setting the pedal groove 710, the feet of the trainer can be placed in the groove and will not break away from the pedal 71 during training, ensuring the smooth progress of training and avoiding damage to the training personnel at the same time. By setting anti-slip lines in the pedal groove 710, the feet of the trainer will not slip in the pedal groove 710, enabling the trainer to always maintain a good training posture, avoiding discomfort in exerting force, and ensuring the training effect.

[0037] In summary, the present utility model solves the problem that the commonly used outdoor sitting pedaling trainer in the traditional technology often uses a fixed weight as the counterweight, and its counterweight is not adjustable, unable to meet the usage requirements of different training populations, and is applicable to the technical field of sports equipment.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the scope of protection of the claims of the present utility model.

Claims

1. A power type leg press trainer, comprising a main frame, characterized in that: The bottom of the main frame is fixedly installed on the ground. There are pedaling frames on both sides of the top. There is an adjustable counterweight unit on the side of the pedaling frame. A pedaling rod is horizontally fixedly installed at the front end of the pedaling frame. One end of the pedaling rod is fixedly connected to the pedaling frame, and the other end is fixedly provided with a foot pedal. The rear end of the pedaling frame is hinged to the top of the main frame. An L-shaped support rod is fixedly installed below the rear end of the pedaling frame. The L-shaped support rod is fixedly connected to the main frame through a cross beam. A seat plate and a backrest plate are provided at the top of the L-shaped support rod; The adjustable counterweight unit includes a U-shaped counterweight rod fixedly installed on the side of the pedaling frame and perpendicular to it. Slide rods are fixedly installed on the rod bodies at both ends of the U-shaped counterweight rod. A number of counterweight plates are slidably arranged on the slide rods and axially limited to the slide rods through a limiting component.

2. The power type leg press trainer according to claim 1, wherein: The limiting component includes limiting protrusions and annular rings. A number of limiting protrusions are perpendicular to the axis of the slide rod and arranged at intervals along its axial direction. Annular rings are fixedly installed on both end faces of each counterweight plate. A limiting groove with an annular structure adapted to the limiting protrusions is formed between the annular rings on both end faces of each counterweight plate.

3. The power type leg press trainer according to claim 2, wherein: The annular ring is provided with a groove adapted to the limiting protrusion. The grooves of the two annular rings on the same counterweight plate are symmetrically arranged with respect to the counterweight plate.

4. A power type sitting leg press trainer according to claim 1, characterized in that: The pedaling frame includes an upper arm, a forearm and a connecting arm. The front end of the upper arm and the top end of the forearm are fixedly connected. The arm body of the forearm is fixedly connected to the front end of the connecting arm. The rear end of the upper arm and the rear end of the connecting arm are rotationally connected to the hinge seat at the top end of the main frame through a limiting main shaft. The pedaling rod is horizontally arranged at the bottom end of the forearm.

5. The power type leg press trainer according to claim 4, characterized in that: The main frame includes two columns. The two columns are fixedly connected by a cross beam. A reference rod is fixedly installed in parallel below the cross beam. The two ends of the reference rod are fixedly connected to the two columns. The hinge seat is fixedly installed at the top end of the column.

6. The power type leg press trainer according to claim 4, characterized in that: The rod bodies at both ends of the U-shaped counterweight rod pass through the limiting shaft and are perpendicularly and fixedly connected to the upper arm of the pedaling frame through a pin. The limiting shaft is perpendicularly and fixedly connected to the upper arm of the pedaling frame.

7. The power type leg press trainer according to claim 1, characterized in that: The foot pedal is inclined forward at 45°. There is a foot pedal groove on the foot pedal, and anti-slip lines are provided in the foot pedal groove.

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