CN103357144A - Rail type pectoral training assistant mechanism - Google Patents

Abstract

The invention discloses a rail type pectoral training assistant mechanism. End frames and side frames are strip-shaped rods and form a framework, and sliding rails are arranged on the inner sides of the two side frames. A drag spring rod is arranged in the middle of the framework; four through holes are formed in the drag spring rod; each through hole is connected with one end of one spring in a hanging manner, and the other end of each spring is connected with the through holes in the drag spring base. The drag spring base is arranged under two sliding plates on the two sides of the drag spring rod. Rollers are respectively arranged at the adjacent lower parts of two side frames and the sliding plates. Roller shafts of the rollers are arranged under the sliding plates via a bearing base, two support columns are fixedly connected to the upper parts of the sliding plates; the two support columns are fixedly connected via columnar holding rods and the columnar holding rods are sleeved with rubber sleeves. Grooves are formed in the upper surfaces of the middle parts of the inner sides of the side frames, and safety plates are movably connected to the grooves. The rail type pectoral training assistant mechanism can help a trainer weaker in pectoral and arm muscle power to complete training action at any time.

Description

A track-type pectoralis major muscle training assisting mechanism

Technical field The present invention relates to a kind of sports fitness equipment, especially a kind of pectoralis major muscle training assisting mechanism.

Background Art With the rapid development of society, people's pace of life is greatly accelerated, and work pressure is also increasing. People also occasionally choose some sports and fitness equipment to exercise in order to relieve work pressure and enhance their physical fitness, such as training pectoralis major or the like. At present, the existing fitness equipment for training the pectoralis major mainly includes a base plate, an operating cross bar, an operating longitudinal bar, a rotating vertical shaft and a coil spring. Wherein, the rotating vertical shaft is screwed with the fixing nut on the welding and base plate, the two ends of the operating cross bar are respectively welded to the rotating vertical shaft and the operating longitudinal bar, and the two ends of the rotating spring are hooked to the base plate and the operating cross bar respectively. The above-mentioned operating cross bar adjusts the arm length through rivets, and the operating longitudinal bar adjusts the height through the leather case. The coil spring is movably connected with the base plate and the operating cross bar. Its weak point: take exercise with the sports fitness equipment of above-mentioned pectoralis major, need larger strength support, the weaker person of pectoralis major and upper limb muscle group strength is difficult to complete such training action, there is the obstacle of training, and Because the training equipment takes up a lot of space, the training venue is also limited.

SUMMARY OF THE INVENTION The purpose of the present invention is to provide a track-type pectoralis major training assisting mechanism for those with weak pectoralis major and upper limb muscle groups to complete training actions at any time.

The present invention mainly includes: end frame, frame, safety plate, spring, groove slideway, slide plate, support column, grip bar, roller shaft, roller, bearing seat, extension spring seat, extension spring rod and groove. Among them, the end frame and the frame are two sets of parallel bar bars, and they are all made of wood, aluminum alloy profiles or other non-metallic hard materials. The inner side of the frame is provided with a U-shaped groove slideway, and the upper side of the groove section is shorter than the lower side. An extension spring rod is arranged in the middle part of the above-mentioned frame, and its two ends are respectively on the frame. Four through holes are arranged on the extension spring rod, each through hole is connected with one end of a spring, and the other end of each spring is connected with the extension spring respectively. Through-hole mounting on the seat. The extension spring seats are respectively located under the two slide plates on both sides of the extension spring rod, which can be 4 independently, or two groups connected together. The lower part of the above-mentioned sliding plate adjacent to the two frames is respectively provided with rollers that can roll on the groove of the frame, which can be two or two pairs, and their roller shafts are arranged under the sliding plate through bearing seats. The upper part of the sliding plate is fixedly connected with two support columns, and the two support columns are fixedly connected by a columnar handle, preferably with a rubber sleeve on the outside of the columnar handle. Preferably, a groove is provided on the upper surface of the inner middle part of the frame, and the safety plate is movably connected to the groove.

When the present invention is in use, the exerciser takes the line connecting the two shoulders parallel to the frame and faces the safety board, holds the grip bar with the left and right hands respectively to form a push-up posture with straight arms, and uses muscle strength such as the pectoralis major, upper limb muscles, and deltoid muscles to do push-ups. Pushing forcefully controls the slider to slide to the left and right sides along the slideway to form a chest expansion posture, and then the pectoralis major, upper limb muscles, deltoid muscles and other muscles forcefully contract to complete the process of chest retraction and return to the straight-arm push-up posture, and repeat the expansion in this way The process of chest and chest retraction is not only a process of exercising muscle strength such as pectoralis major, upper limb muscles, and deltoid muscles.

Compared with the prior art, the present invention has the following advantages: enabling those with weak pectoralis major and upper limb muscle groups to complete training actions at any time.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of track type pectoralis major muscle training booster mechanism;

Figure 2 is a partially enlarged view of Figure 1;

Fig. 3 is a schematic bottom view of the track-type pectoralis major training assisting mechanism.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the schematic diagrams of the present invention shown in Fig. 1, Fig. 2 and Fig. 3, the end frame 1 and the frame 2 are two groups of strip bars parallel to each other, and both are made of wooden materials, and the two form a frame, The frame transitions smoothly, and the inner sides of the two frames are provided with U-shaped groove slideways 3, and the upper side of the groove section is shorter than the lower side. Above-mentioned frame middle part is provided with extension spring bar 4, and its two ends are on the frame respectively, and this extension spring bar is provided with four through holes, and each through hole is articulated with a spring 5 one end, and the other end of each spring is respectively connected with The through hole on the extension spring seat 6 is articulated. This extension spring seat is respectively located at two slide plates 7 below the extension spring bar both sides, and this extension spring seat is independent 4. The lower part adjacent to the above-mentioned sliding plate and the two frames is respectively provided with rollers 8 that can roll on the groove of the frame. The rollers are two pairs. The upper part is fixedly connected with two supporting columns 11, and the two supporting columns are fixedly connected by a columnar handle 12, and a rubber sleeve is set on the outside of the columnar handle. A groove is provided on the upper surface of the inner middle part of the frame, and a safety plate 13 is movably connected to the groove.

Claims (6)

1. a rail mounted pectoralis major is trained servomechanism, it comprises the end frame, frame, guard plate, spring, the groove slideway, sliding panel, support column, holding rod, roller shaft, roller, bearing block, spring base, extension spring bar and groove, it is characterized in that: end frame and frame are two groups of bar shaped bars that are parallel to each other, the two forms framework, the frame rounding off, the inboard of two frames is provided with U-shaped groove slideway, and top, groove cross section is shorter than following, be provided with the extension spring bar at the said frame middle part, its two ends are respectively on frame, this extension spring bar is provided with four through holes, each through hole and spring one end articulate, the other end of each spring respectively with spring base on through hole articulate, this spring base is located at respectively below two sliding panels of extension spring bar both sides, be respectively equipped with the roller that can roll at the frame groove in the above-mentioned sliding panel bottom adjacent with two frames, their roller shaft is located at below the sliding panel by bearing block, the top of this sliding panel is fixedly connected with two support columns, is fixedly connected with by the cylindricality holding rod between two support columns.

2. a kind of rail mounted pectoralis major training servomechanism according to claim 1 is characterized in that: hold frame and frame and be wood materials and make.

3. a kind of rail mounted pectoralis major according to claim 1 and 2 is trained servomechanism, and it is characterized in that: this spring base is independent 4.

4. a kind of rail mounted pectoralis major according to claim 3 is trained servomechanism, and it is characterized in that: the roller that rolls at the frame groove is two pairs.

5. a kind of rail mounted pectoralis major training servomechanism according to claim 4 is characterized in that: at the outer cover rubber sleeve of this cylindricality holding rod.

6. it is characterized in that: be flexibly connected guard plate at this groove according to claim 4 or 5 described a kind of rail mounted pectoralis majors training servomechanisms.

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