Sit-up fitness board with counting function

Abstract

The invention discloses a sit-up fitness board with a counting function. A fastening knob is rotated to adjust the connecting angle of a first supporting rod and a second supporting rod through a first hinge seat and a first hinge head; then a telescopic rod and the first supporting rod are pulled through an adjusting handle to adjust the distance between a first cross rod and a second cross rod so that the fitness board is suitable for a user to use, and then the plate frame is lifted through a second hinge seat and a second hinge head; meanwhile, an adjusting rod is adjusted through a third hinge seat and a third hinge head, so that a tooth connector on the adjusting rod is clamped at a proper position of an adjusting tooth, at the moment, adjustment of the sit-up board is completed, the user clamps the shanks between the first cross rod and the second cross rod, lies in the middle of a protection strip on a leather cushion, rests the head on a cushion headrest, and then starts to do sit-ups; when a user sits up, a contact switch starts to generate a signal, the signal is transmitted to a counter for counting, then the repeated sitting-up contacts the switch to repeatedly generate signals, and digits on the counter are sequentially increased.

Description

technical field [0001] The invention relates to the field of a sit-up board, in particular to a sit-up fitness board with a counting function. Background technique [0002] At present, with the rapid development of society, politics and economy in our country, people's life and work pace are constantly accelerating, and social competition is becoming increasingly fierce. Many people have realized that in order to maintain normal work and life and maintain the necessary physical fitness, they join the ranks of physical exercise; sit-ups are a way of exercising. Lie on your back, keep your legs together, lift your hands up, use your abdominal muscles to contract, swing your arms forward, quickly get into a sitting position, continue to bend your upper body forward, touch your feet with your hands, and lower your head; then return to a sitting position; do this continuously. Generally people can use sit-up boards to carry out sit-ups, but the sit-up boards on the market are ge...

AI Technical Summary

Problems solved by technology

Generally, people will use sit-up boards to do sit-ups, but the sit-up boards on the market generally cannot count the number, and people need to count by themselves, which is easy to remember.

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