CN203663359U

CN203663359U - Device for fixing both feet during sit-ups

Info

Publication number: CN203663359U
Application number: CN201320680739.2U
Authority: CN
Inventors: 毛秉毅
Original assignee: Yanshan University
Current assignee: Yanshan University
Priority date: 2013-10-31
Filing date: 2013-10-31
Publication date: 2014-06-25
Anticipated expiration: 2023-10-31

Abstract

The utility model belongs to the field of physical exercise equipment, and relates to a device for fixing both feet during sit-ups. The device is characterized in that the lower end of a sliding sleeve is connected to the upper surface of a connection plate of two half-round plates in a welding mode, half-round sponge mats are respectively arranged under the two half-round plates, a round rod penetrates through a sliding sleeve hole, a connection plate hole of the two half-round plates, the upper end of a spring and the lower end of the spring and then is connected with an upper baffle and a bottom plate in a welding mode. A fastening screw is arranged on the side surface of the sliding sleeve. Angle iron is fixedly connected with the bottom plate through a screw, and the bottom plate is arranged on the ground. When using the device, users need to press the sliding sleeve downwards so that the two half-round sponge mats can be respectively arranged on the insteps, and then need to screw the fastening screw so that both feet can be fixed. The two insteps are arranged under the half-round sponge mats, the contact area is large relatively, the stress is controllable, the insteps are protected against pressing pain, and the users can exercise sit-ups by themselves.

Description

Double-legged device is fixed in sit-ups

Technical field

The utility model belongs to field of sports equipment, relates to the fixing double-legged device of a kind of sit-ups.

Background technology

People bends one's legs and does the fixing both feet of sit-ups to exist following problem: a, both hands to press companion's instep strength little or large, and companion exists and be not easy to have an effect, easily tenderness instep and wayward suitable problem of pressing strength; B: double-legged face is placed in contact area little Yi under roller and coughs up tenderness instep.

Summary of the invention

For solving preferably the problem that above-mentioned background technology exists, the purpose of this utility model is to provide the fixing double-legged device of a kind of sit-ups, the technical scheme that it is taked is by forming with lower component: above the connecting plate of sliding sleeve lower end and two semi-circular plates, be welded to connect, a semicircle foam-rubber cushion is respectively set under two semi-circular plates, round bar is welded to connect with overhead gage base plate respectively through sliding sleeving hole, the connecting plate hole of two semi-circular plates, its upper and lower side of spring, sliding sleeve side arranges trip bolt, angle steel is fixedly connected with base plate by screw, and base plate is placed in ground.

Press described sliding sleeve downwards, make two semicircle sponges be placed in respectively instep, screw trip bolt and can realize fixing both feet.

Use its beneficial effect compared with two kinds of ways that this device mentions with background technology to be: a, to press described sliding sleeve downwards, make two semicircle foam-rubber cushions be placed in double-legged face stressed controlled, screw the fixing double-legged process of trip bolt simple and easy to operate, can realize oneself's exercise sit-ups; B: it is relatively large that double-legged face is placed under semicircle foam-rubber cushion contact area, can avoid coughing up tenderness instep; Heel is by preventing from moving after heel with angle steel facade.

Brief description of the drawings

Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.

Fig. 1 is that the master of the fixing double-legged device of sit-ups looks sketch;

Fig. 2 is that sketch is looked on a left side of Fig. 1;

Fig. 3 is the diagrammatic top view of Fig. 1;

Fig. 4 is the fixing double-legged simplified schematic diagram of Fig. 2.

Detailed description of the invention

With reference to accompanying drawing, above the connecting plate of sliding sleeve 6 lower ends and two semi-circular plates 2, be welded to connect, a semicircle foam-rubber cushion 3 is respectively set under two semi-circular plates, round bar 9 is welded to connect with overhead gage 4 base plates 1 respectively through sliding sleeving hole, the connecting plate hole of two semi-circular plates, spring 10 its upper and lower sides, sliding sleeve side arranges trip bolt 5, angle steel 7 is fixedly connected with base plate by screw 11, and base plate is placed in ground 8.In the time using this device, practitioner is sitting on Sponge cushion 12, and the shoemaking that is limited moves and leaned against angle steel facade after following 13, presses described sliding sleeve downwards, makes two semicircle sponges be placed in respectively instep, screws trip bolt and can realize fixing both feet, as shown in Figure 4.

Claims

1. the fixing double-legged device of sit-ups, it is characterized in that: above the connecting plate of sliding sleeve lower end and two semi-circular plates, be welded to connect, a semicircle foam-rubber cushion is respectively set under two semi-circular plates, round bar is welded to connect with overhead gage base plate respectively through sliding sleeving hole, the connecting plate hole of two semi-circular plates, its upper and lower side of spring, sliding sleeve side arranges trip bolt, angle steel is fixedly connected with base plate by screw, and base plate is placed in ground.