CN206007883U - A kind of adjustable for height physical strength training device - Google Patents

Abstract

The utility model relates to a height-adjustable strength training device, which comprises a base, a sleeve, a screw rod, a tension spring, a pull rod, a cylindrical tube, and a jerk bar. A sleeve is respectively installed on the left and right sides of the base. The screw is installed, the top of the screw is fixed to the cylinder, and the tension spring and the pull rod are installed in the cylinder, the lower end of the tension spring is fixed on the bottom of the cylinder, the upper end of the tension spring is connected to the lower end of the pull rod, and the upper ends of the pull rods on the left and right sides are connected. Stretch out the respective cylinders, the two ends of the jerk bar are respectively connected to the upper ends of the pull rods on the left and right sides, the second distance sensor is installed on the inner wall of the cylinder, the first distance sensor is installed on the pull rod, and the flat plate is installed on the jerk bar. The computer and the tablet computer have a built-in data acquisition chip for receiving signals from the second distance sensor and the first distance sensor. The initial height of the clean and jerk bar of the strength training device is adjustable, which can be used by students with different physiques, and can be used for statistics and technical training of the students.

Description

A height-adjustable strength training device

technical field

The utility model belongs to physical training equipment and relates to a strength training device.

Background technique

The barbell squat is a common fitness exercise, which exercises the classic quadriceps of the thigh. The barbell squat is divided into the back barbell squat and the front barbell squat. Target exercise area: quadriceps (also involving biceps femoris and gluteus maximus), it is the only four areas that can fully stimulate the quadriceps femoris, and only needs appropriate strength to maximize muscle development action. In the process of squatting and staying at the lowest point, the rectus femoris and medial hair force and control the degree of bending of each joint; and during the entire ascent process, the three muscles of the lateral head, rectus femoris and medial head must exert force, And with the help of the tibialis muscle to complete the whole movement.

The barbell device is mainly composed of a barbell rack, a lever and a barbell plate. To develop the strength of the lower limbs and the back muscles, you need to squat with a barbell on your shoulders to achieve the purpose of the exercise. The traditional barbell device is not suitable for placing in the open air, carrying and replacing the barbell plates It is only suitable for professional sports training under the guidance of coaches, and most students do not have the ability to use barbells to train lower body strength.

ZL201620051105.4 discloses a muscle strength training device, which has a simple structure and can choose equipment of different heights and different resistances according to the trainer's height, lower limbs and back muscle strength, which is suitable for physical education teachers to arrange students' lower limb strength exercises. But its disadvantage is that a single training device cannot be applied to students of different heights and arm lengths, and different types of equipment need to be equipped on the training ground. In addition, the number of clean and jerk and strength cannot be recorded, and strength training is relatively boring, and there are no entertainment facilities.

Utility model content

The purpose of the utility model is to provide a height-adjustable strength training device, which is suitable for students with different physiques, and can automatically record clean and jerk times, and is equipped with a video playback device.

In order to achieve the above object, the utility model adopts the following technical solutions.

A height-adjustable strength training device, including a base, a sleeve, a screw, a tension spring, a pull rod, a cylinder, and a jerk bar. A sleeve is installed on the left and right sides of the base, and a screw is installed in the sleeve. The top of the cylinder is fixed, and a tension spring and a pull rod are installed in the cylinder. The lower end of the tension spring is fixed on the bottom of the cylinder, and the upper end of the tension spring is connected to the lower end of the pull rod. The two ends of the jerk bar are connected to the upper ends of the pull rods on the left and right sides respectively.

Further preferably, the lower end of the screw is connected to a rocker.

Further preferably, the lower end of the screw is connected to a motor.

Further preferably, a level is installed on the jerk bar.

Further preferably, a baffle is installed on the upper part of the cylinder, the pull rod passes through the baffle, and a buffer spring is arranged above the baffle.

Further preferably, a second distance sensor is installed on the inner wall of the cylindrical barrel, a first distance sensor is installed on the pull rod, a tablet computer is installed on the jerk bar, and the tablet computer has a built-in data receiving signal of the second distance sensor and the first distance sensor Acquisition chip.

Further preferably, a contact switch is installed on the lower side of the baffle, a flat plate is installed on the lower part of the pull rod, and the contact switch is connected to the counter.

The utility model has the advantages that the initial height of the jerk bar of the strength training device can be adjusted, and can be used by students with different physiques. And according to the elongation data of the tension spring, statistics and technical training of students can be made, which is convenient for students to make reasonable exercise planning. In addition, music or video can be played to provide better entertainment.

Description of drawings

Fig. 1 is the schematic diagram of the utility model.

In the figure: 1. Base, 2. Supporting leg, 3. Rocker, 4. Screw, 5. Sleeve, 6. Tension spring, 7. Pull rod, 8. Cylinder, 9. Baffle, 10. Jerk bar , 11. tablet computer, 12. buffer spring, 13. first distance sensor, 14. second distance sensor.

detailed description

Further illustrate the utility model below in conjunction with accompanying drawing and embodiment.

As shown in Figure 1, a height-adjustable strength training device includes a base 1, a sleeve 5, a screw rod 4, a tension spring 6, a pull rod 7, a cylindrical tube 8, and a clean and jerk bar 10. The left and right sides of the base 1 A sleeve 5 is installed on each side, and a screw rod 4 is installed in the sleeve 5, and a cylinder 8 is fixed at the top of the screw rod 4, and a tension spring 6 and a pull rod 7 are installed in the cylinder 8, and the lower end of the tension spring 6 is fixed on the cylinder 8 bottom, the upper end of tension spring 6 connects the lower end of pull bar 7, and the pull bar 7 upper ends of left and right sides all stretches out respective cylinder tube 8, and the two ends of jerk bar 10 connect respectively the pull bar 7 upper ends of left and right sides. By adjusting the screw 4, the height of the cylinder 8 and its internal components can be adjusted, thereby adjusting the height of the initial position of the clean and jerk bar 10, so that it is suitable for students of different body types.

In order to adjust the screw rod 4, the lower end of the screw rod 4 is connected to the rocker 3, and the height is manually adjusted through the rocker 3. Certainly also can not use rocking bar 3, and connect motor at screw rod 4 lower ends, control screw rod 4 lifting by motor. Simultaneously, for the screw rods 4 on the left and right sides are adjusted for the same height, even if the jerk bar 10 is level, a spirit level can be installed on the jerk bar 10 .

The upper part of the cylindrical barrel 8 is equipped with a baffle plate 9, the pull rod 7 passes through the baffle plate 9, and a buffer spring 12 is arranged above the baffle plate 9. After the jerk and jerk, if the force is unloaded suddenly, the jerk bar 10 is affected by the tension of the tension spring 6 , can quickly bounce back and hit the top of the cylindrical tube 8, and the buffer spring 12 can be used to reduce the impact force.

The tensile force of the extension spring 6 varies with the elongation of the spring, and the student's exertion can be determined by detecting the elongation of the extension spring 6 . Therefore, the second distance sensor 14 is installed on the inner wall of the cylinder 8, the first distance sensor is installed on the pull rod 7, the tablet computer 11 is installed on the jerk bar 10, and the tablet computer 11 is built-in to receive the second distance sensor 14 and the first distance sensor. The data acquisition chip of the distance sensor 13 signal, the distance signal between the second distance sensor 14 and the first distance sensor 13 collected by the data acquisition chip is uploaded to the CPU of the tablet computer 11, and converted into the force situation data, and stored every time force data and display. The tablet computer 11 can also play music and videos for entertainment.

Another embodiment is that a contact switch is installed on the lower side of the baffle plate 9, a flat plate is installed on the bottom of the pull rod 7, and the contact switch is connected with a counter. Whenever the jerk bar 10 is lifted in place, the flat plate touches the contact switch, and the counter counts once , so that the number of clean and jerk can be counted.

Claims (7)

1. A height-adjustable strength training device, comprising a base, a sleeve, a screw rod, an extension spring, a pull bar, a cylinder, and a jerk bar, is characterized in that: a sleeve is respectively installed on the left and right sides of the base, and a sleeve A screw is installed in the cylinder, and the top of the screw is fixed to the cylindrical cylinder. A tension spring and a pull rod are installed in the cylinder. The lower end of the tension spring is fixed on the bottom of the cylinder, and the upper end of the tension spring is connected to the lower end of the pull rod. The upper ends all protrude from respective cylinders, and the two ends of the jerk bar are respectively connected to the upper ends of the pull rods on the left and right sides. 2. The height-adjustable strength training device according to claim 1, characterized in that: the lower end of the screw rod is connected to a rocker. 3. The height-adjustable strength training device according to claim 1, characterized in that: the lower end of the screw is connected to a motor. 4. The height-adjustable strength training device according to claim 1, characterized in that: a level is installed on the jerk bar. 5. The height-adjustable strength training device according to claim 1, characterized in that: a baffle is installed on the upper part of the cylinder, the pull rod passes through the baffle, and a buffer spring is arranged above the baffle. 6. The height-adjustable strength training device according to claim 1, characterized in that: a second distance sensor is installed on the inner wall of the cylinder, a first distance sensor is installed on the pull rod, and a flat plate is installed on the jerk bar The computer and the tablet computer have a built-in data acquisition chip for receiving signals from the second distance sensor and the first distance sensor. 7. The height-adjustable strength training device according to claim 1, characterized in that: a contact switch is installed on the lower side of the baffle, a flat plate is installed on the lower part of the pull rod, and the contact switch is connected to the counter.