A hanging piece type universal training device for stretching and bending legs

Abstract

The utility model discloses a kind of hanging piece type stretch leg and bend leg general training device, including frame body, posture positioning mechanism is installed on one side of frame body, and counterweight mechanism is installed on the other side;Posture positioning mechanism includes cushion assembly, backrest assembly, cushion assembly and cushion assembly are respectively connected with frame body by a group of pin shafts and rotate, wherein, the pin shaft of backrest assembly can be locked by draw pin, cushion assembly and backrest assembly are adjusted by linkage mechanism to sitting posture and lying posture;Counterweight mechanism includes counterweight arm, counterweight arm is rotatably arranged on frame body, the hooking leg cylinder of training device is installed on the input end of frame body's movement swing arm and is arranged in parallel with posture positioning mechanism, movement swing arm is connected with counterweight arm by transmission mechanism.The general training device uses hanging piece type counterweight form to replace traditional counterweight box, and the land position is small, can effectively equipment production cost, and can carry out the flexible conversion of sitting posture and prone position, carry out the exercise of different muscle groups of thigh.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to a universal training device for leg extension and flexion with hanging plates. Background Technology

[0002] The leg extension and flexion trainer is a strength training device that allows users to use different weight loads to train the muscles on the front or back of the thigh.

[0003] Existing leg extension and flexion trainers are generally insert-type with counterweight boxes, which have overly complex transmission mechanisms and disadvantages such as high cost and difficulty in maintenance. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model proposes a universal leg extension and flexion trainer with hanging plates. This universal trainer uses hanging plates as counterweights instead of traditional counterweight boxes, which takes up little space, effectively reduces equipment production costs, and allows for flexible switching between sitting and prone positions to exercise different muscle groups in the thigh.

[0005] A universal leg extension and flexion trainer with hanging plates includes a frame, on one side of which a posture positioning mechanism is installed and on the other side a counterweight mechanism is installed. The posture positioning mechanism includes a seat cushion assembly and a backrest assembly. The seat cushion assembly and the backrest assembly are rotatably connected to the frame through a set of pins. The pins of the backrest assembly can be locked by a pull pin. The seat cushion assembly and the backrest assembly are adjusted for sitting and lying positions through a linkage mechanism. The counterweight mechanism includes a counterweight arm, which is rotatably mounted on the frame. The leg hook roller of the trainer is installed at the input end of the motion rotating arm of the frame and is arranged in parallel with the posture positioning mechanism. The motion rotating arm is connected to the counterweight arm through a transmission mechanism.

[0006] As a preferred embodiment of the above technical solution, the linkage mechanism includes a backrest stop pin fixed to the bottom of the backrest assembly via a positioning plate. In the upright sitting position, the backrest stop pin is rotated and limited by a stop plate fixed to the frame. A pressure plate is rotatably provided on the stop plate, and the pressure plate is connected to the frame via a tension spring. A hook plate is fixed to the bottom of the seat cushion assembly, and a seat cushion stop pin is provided at the front end of the hook plate. In the upright sitting position, the front end of the pressure plate presses against the seat cushion stop pin. In the reclining position, the backrest stop pin engages with the hook groove of the hook plate and achieves positioning of the seat cushion assembly and the backrest assembly.

[0007] As a preferred embodiment of the above technical solution, the transmission mechanism includes a cam installed at the output end of the moving arm. The cam is connected to the counterweight arm via a belt. When the hook roller rotates, the moving arm drives the cam to rotate. When the cam rotates, the counterweight arm is rotated by the belt.

[0008] As a preferred embodiment of the above technical solution, the frame is also equipped with pulleys for supporting the belt.

[0009] As a preferred embodiment of the above technical solution, the frame is also fixed with two sets of handles at the front and back for leg extension and leg stretching exercises.

[0010] As a preferred embodiment of the above technical solution, a single pedal is fixed on the frame between the posture positioning mechanism and the counterweight mechanism, and a single gripper is fixed on the outside of the backrest assembly. In the reverse sitting position, single-arm strength training can be achieved through the cooperation of the single pedal and the single gripper.

[0011] As a preferred embodiment of the above technical solution, both the seat cushion assembly and the backrest assembly are composed of a base and an elastic pad fixed on the base.

[0012] The advantages of this utility model are: 1. It adopts cam belt drive, which is simple in structure and easy to maintain.

[0013] 2. The backrest and seat cushion components can be adjusted in tandem to allow users to switch between sitting and prone positions, exercising the front or back thigh muscles respectively.

[0014] 3. The elimination of the counterweight box reduces the floor space required and saves costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the trainer in a seated position.

[0016] Figure 2 This is a top view of the present invention.

[0017] Figure 3 This is the front view of the trainer in a seated position.

[0018] Figure 4 This is a schematic diagram of the state of this trainer during the adjustment process.

[0019] Figure 5 This is the front view of the trainer in a lying position.

[0020] The attached diagram is labeled as follows: 1-Frame, 2-Posture positioning mechanism, 3-Counterweight mechanism, 4-Seat cushion assembly, 5-Backrest assembly, 6-Pin, 7-Pull pin, 8-Linkage mechanism, 801-Positioning plate, 802-Backrest stop pin, 803-Baffle plate, 804-Pressure plate, 805-Tension spring, 806-Hook plate, 807-Seat cushion stop pin, 9-Counterweight arm, 10-Leg hook roller, 11-Motion rotating arm, 12-Transmission mechanism, 1201-Cam, 1202-Belt, 1203-Pulley, 13-Hook groove, 14-Handle, 15-Single pedal, 16-Single hand gripper. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] like Figure 1 The above describes a universal leg extension and flexion trainer with a hanging plate, which includes a frame 1. A posture positioning mechanism 2 is installed on one side of the frame 1, and a counterweight mechanism 3 is installed on the other side. The posture positioning mechanism 2 includes a seat cushion assembly 4 and a backrest assembly 5. The seat cushion assembly 1 and the seat cushion assembly 5 are rotatably connected to the frame 1 through a set of pins 6. The pins 6 of the backrest assembly 5 can be locked by a pull pin 7. The seat cushion assembly 4 and the backrest assembly 5 can be adjusted to sitting and lying positions through a linkage mechanism 8. The counterweight mechanism 3 includes a counterweight arm 9, which is rotatably mounted on the frame 1. The leg-hooking roller 10 of the trainer is installed at the input end of the motion rotating arm 11 of the frame 1 and is arranged parallel to the posture positioning mechanism 2. The motion rotating arm 11 is connected to the counterweight arm 9 through a transmission mechanism 12. The motion rotating arm 11 is a conventional existing technology in fitness equipment, and its structure and working principle will not be described in detail here.

[0023] In this embodiment, the linkage mechanism 8 includes a backrest stop pin 802 fixed to the backrest assembly 5 via a positioning plate 801. The backrest stop pin 802 is rotated and limited in the forward-facing sitting position by a stop plate 803 fixed to the frame 1. A pressure plate 804 is rotatably mounted on the stop plate 803, and the pressure plate 804 is connected to the frame 1 via a tension spring 805. A hook plate 806 is fixed to the bottom of the seat cushion assembly 4, and a seat cushion stop pin 807 is provided at the front end of the hook plate 806. In the forward-facing sitting position, the front end of the pressure plate 804 presses against the seat cushion stop pin 807. Figure 3As shown, in the lying position, the backrest stop pin 802 engages with the hook groove 13 of the hook plate 806 and positions the seat cushion assembly 4 and the backrest assembly 5, as shown. Figure 5 As shown.

[0024] In this embodiment, the transmission mechanism 12 includes a cam 1201 installed at the output end of the motion rotating arm 11. The cam 1201 is connected to the counterweight arm 9 via a belt 1202. When the hook roller 10 rotates, the motion rotating arm 11 drives the cam 1201 to rotate. When the cam 1201 rotates, the counterweight arm 9 is rotated by the belt 1202.

[0025] In this embodiment, a pulley 1203 for supporting the belt 1202 is also installed on the frame 1.

[0026] In this embodiment, the frame 1 is also fixed with two sets of front and rear grippers 14 for leg extension and leg stretching exercises.

[0027] In this embodiment, a single pedal 15 is fixed on the frame 1 between the posture positioning mechanism 2 and the counterweight mechanism 3, and a single gripper 16 is fixed on the outer side of the backrest assembly 5. In a reverse sitting posture, single-arm strength training can be achieved through the cooperation of the single pedal 15 and the single gripper 16. Figure 2 As shown.

[0028] In this embodiment, both the seat cushion assembly 4 and the backrest assembly 5 are composed of a base and an elastic pad fixed on the base.

[0029] When in use, the user sits facing forward on the seat cushion assembly 4 and back against the backrest assembly 5, hooking their lower legs onto the leg hook roller 10 to perform a kicking motion. The motion rotating arm 11 is connected to the counterweight arm 9 via the cam 1201 and belt 1202, causing a change in the direction of motion, which in turn drives the counterweight arm 9 to rotate, while providing a load to achieve the effect of exercising the front thigh muscles. Different weights of barbell plates can be hung on the weight plate hanger of the counterweight arm 9 to achieve different weight strength training.

[0030] When changing posture, the user pulls out the pull pin 7 and rotates the backrest assembly 5 counterclockwise. During the rotation of the backrest assembly 5, the pressure block 804 first releases the restriction on the hook plate 806, and then the backrest stop pin 802 rotates to contact the hook plate 806 and simultaneously lifts the hook plate 806. Figure 4 As shown, during the continued rotation, the seat cushion assembly 4 and backrest assembly 5 can be positioned by sliding along the lower edge of the hook plate 906 into the hook groove 13 of the hook plate 806. By lying face down on the seat cushion assembly 4 and backrest assembly 5, the seat cushion assembly 4 and backrest assembly 5 can be pressed together. The lower legs can hook onto the leg hook roller 10 to perform leg hooking movements, which can achieve the effect of exercising the hamstring muscles.

[0031] To return to the seated training position, continue rotating until the seat cushion assembly 4 and backrest assembly 5 separate. Then, rotate the seat cushion assembly 4 counterclockwise and the backrest assembly 5 clockwise until the pressure plate 804 presses onto the hook plate 906 again.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A universal leg extension and flexion training device with hanging plates, characterized in that: Includes a frame, on one side of which an attitude positioning mechanism is installed and on the other side a counterweight mechanism is installed; The posture positioning mechanism includes a seat cushion assembly and a backrest assembly. The seat cushion assembly and the backrest assembly are rotatably connected to the frame through a set of pins. The pins of the backrest assembly can be locked by a pull pin. The seat cushion assembly and the backrest assembly are adjusted for sitting and lying positions through a linkage mechanism. The counterweight mechanism includes a counterweight arm, which is rotatably mounted on the frame. The leg hook roller of the trainer is installed at the input end of the motion rotating arm of the frame and is arranged in parallel with the posture positioning mechanism. The motion rotating arm is connected to the counterweight arm through a transmission mechanism.

2. The universal leg extension and flexion trainer with hanging plates according to claim 1, characterized in that: The linkage mechanism includes a backrest stop pin fixed to the bottom of the backrest assembly via a positioning plate. In the upright sitting position, the backrest stop pin is rotated and limited by a stop plate fixed to the frame. A pressure plate is rotatably provided on the stop plate, and the pressure plate is connected to the frame via a tension spring. A hook plate is fixed to the bottom of the seat cushion assembly, and a seat cushion stop pin is provided at the front end of the hook plate. In the upright sitting position, the front end of the pressure plate presses against the seat cushion stop pin. In the reclining position, the backrest stop pin engages with the hook groove of the hook plate and achieves positioning of the seat cushion assembly and the backrest assembly.

3. The universal leg extension and flexion trainer with hanging plates according to claim 1, characterized in that: The transmission mechanism includes a cam installed at the output end of the moving arm. The cam is connected to the counterweight arm via a belt. When the hook roller rotates, the moving arm drives the cam to rotate. When the cam rotates, the counterweight arm is pulled by the belt to rotate.

4. The universal leg extension and flexion trainer with hanging plates according to claim 3, characterized in that: The frame is also equipped with pulleys for supporting the belt.

5. The universal leg extension and flexion trainer with hanging plates according to claim 1, characterized in that: The frame is also fixed with two sets of handles at the front and back for leg extension and leg stretching exercises.

6. The universal leg extension and flexion trainer with hanging plates according to claim 1, characterized in that: A single pedal is fixed on the frame between the posture positioning mechanism and the counterweight mechanism, and a single gripper is fixed on the outside of the backrest assembly. In the reverse sitting position, single-arm strength training can be achieved by using the single pedal and the single gripper together.

7. The universal leg extension and flexion trainer with hanging plates according to claim 1, characterized in that: Both the seat cushion assembly and the backrest assembly consist of a base and an elastic pad fixed to the base.

Images