Chest stretching training device

Abstract

The utility model relates to the technical field of fitness equipment, in particular to a chest stretching training device, which comprises a support frame, the support frame is movably connected with a stretching frame, a frame is fixed on one side of the support frame, a counterweight system is arranged in the frame, the stretching frame is connected with the counterweight system through a traction piece, a motion detection device is arranged in the counterweight system, and the motion detection device is connected with the stretching frame. A display control device is arranged on one side of the supporting frame, and the motion detection device is electrically connected with the display control device. Compared with the prior art, the chest stretching training device has the advantages that the movement condition of the counterweight system can be detected through the movement detection device, so that parameters such as stretching times, time and movement amplitude can be known and displayed in real time, the chest stretching training device is convenient to use for exercise, and the chest stretching training effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, in particular to a chest stretching training device. Background Art

[0002] After a large-volume chest muscle exercise, stretching and relaxation are required. The stretching method is generally to passively stretch the muscles in the opposite direction of contraction and keep the force applied for a period of time. When the exerciser performs free stretching, there may be insufficient stretching force, insufficient stretching time, and insufficient stretching position, which affects the stretching effect. Therefore, a chest stretching training device is needed to improve the effect of stretching training. Summary of the invention

[0003] The utility model provides a chest stretching training device to overcome the deficiencies of the prior art.

[0004] To achieve the above-mentioned purpose, a chest stretching training device is designed, comprising a support frame, which is movably connected to a stretching frame, a frame is fixed to one side of the support frame, a counterweight system is arranged in the frame, the stretching frame is connected to the counterweight system through a traction member, a motion detection device is arranged in the counterweight system, a display control device is arranged on one side of the support frame, and the motion detection device is electrically connected to the display control device.

[0005] A seat and a cushion are respectively arranged above the support frame.

[0006] Fixed pulleys are respectively arranged on both sides of the top and bottom of the frame, and a movable pulley is arranged on the top of the counterweight system. After the middle part of the traction member passes through the movable pulley, both sides of the traction member first pass through the fixed pulleys on both sides of the top upwards, and then pass through the fixed pulleys on both sides of the bottom downwards, and finally both ends of the traction member are connected to the stretching frame.

[0007] The motion detection device comprises a laser distance measuring sensor fixed in the vehicle frame, and a reflector which senses the laser distance measuring sensor is fixed on one side of the movable pulley.

[0008] Guide rods are fixed on both sides of the frame, the bottom of the movable pulley is connected to the pull plate, guide sleeves sleeved outside the guide rods are fixed on both sides of the pull plate, a fixed plate is provided below the frame, and a spring is connected between the pull plate and the fixed plate.

[0009] A plurality of springs are connected between the pulling plate and the fixed plate, the bottoms of the springs on both sides are fixedly connected to the fixed plate, a perforated plate with through holes is fixed below the middle spring, a groove is provided on the fixed plate, the perforated plate can be inserted into the groove, through holes are also provided on both sides of the groove, and a pin passes through the groove and the through holes of the perforated plate to fix the perforated plate.

[0010] Guide rods are fixed on both sides of the frame, and the counterweight system includes a plurality of superimposed counterweight plates, both sides of which are sleeved outside the guide rods, a selection shaft is fixedly connected to the bottom of the fixed pulley, a through hole for the selection shaft to pass through is opened in the middle of the counterweight plate, a pin hole is opened on one side of the through hole, and a selection hole corresponding to the pin hole on the side of the counterweight plate is opened on the side of the selection shaft, and an adjustment handle is inserted into the pin hole on the side of the counterweight plate and the selection hole of the selection shaft.

[0011] A footrest is provided on the front side of the stretching frame.

[0012] The stretching frame is a U-shaped structure, and cushions are respectively arranged above both sides of the stretching frame.

[0013] The support frame is connected to the stretching frame in a hinged manner.

[0014] Compared with the prior art, the utility model can detect the movement of the weight system through the motion detection device, so that the number of stretching times, time, movement amplitude and other parameters can be understood and displayed in real time, which is convenient for exercise and use, thereby improving the effect of chest stretching training. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the utility model.

[0016] Figure 2 is a schematic diagram of a motion detection device.

[0017] Figure 3 This is a schematic diagram of state 1 of the counterweight system of Example 1.

[0018] Figure 4 This is a schematic diagram of the second state of the counterweight system of Example 1.

[0019] Figure 5 Schematic diagram of releasing the latch of the counterweight system of Example 1.

[0020] Figure 6 Schematic diagram of the insertion of the pin of the counterweight system of Example 1.

[0021] Figure 7 Schematic diagram of the counterweight system of Example 2.

[0022] See also Figure 1-Figure 7, among which, 1 is a supporting frame, 2 is a stretching frame, 2-1 is a mat, 2-2 is a footrest, 3 is a frame, 3-1 is a fixed pulley, 4 is a counterweight system, 4-1 is a movable pulley, 4-2 is a guide rod, 4-3 is a pull plate, 4-4 is a guide sleeve, 4-5 is a fixed plate, 4-6 is a spring, 4-7 is a hole plate, 4-8 is a groove, 4-9 is a latch, 4-10 is a selection shaft, 4-11 is a counterweight plate, 4-12 is an adjustment handle, 5 is a traction member, 6 is a display control device, 7 is a seat, 8 is a cushion, 9 is a laser ranging sensor, and 10 is a reflector. DETAILED DESCRIPTION

[0023] The utility model is further described below with reference to the accompanying drawings and embodiments. Example

[0024] like Figure 1-Figure 6 As shown, the support frame 1 is movably connected to the stretching frame 2, a frame 3 is fixed on one side of the support frame 1, a counterweight system 4 is arranged in the frame 3, the stretching frame 2 is connected to the counterweight system 4 through a traction member 5, a motion detection device is arranged in the counterweight system 4, a display control device 6 is arranged on one side of the support frame 1, and the motion detection device is electrically connected to the display control device 6. The stretching frame 2 and the support frame 1 can be hinged or slidably connected, and the traction member 5, under the action of the counterweight system 4, makes the stretching frame 2 have resistance when moving forward and the stretching frame 2 can return backward, the user can push the stretching frame 2 forward, and then reduce the force to stretch backward under the action of the restoring force, so as to achieve the purpose of stretching the pectoral muscles. The motion detection device can be a sensor device such as a laser rangefinder, a proximity switch, a contact switch, etc., which is used to detect the movement of the moving parts in the counterweight system 4 and whether they are in place, and transmit the electrical signal to the display control device 6. After analysis, the parameters such as the number of stretching, time, and movement amplitude can be understood and displayed in real time.

[0025] A seat 7 and a back cushion 8 are respectively arranged above the support frame 1. The user can use it in a sitting position, and the backrest can limit the body from moving backwards and enhance the stretching effect.

[0026] Fixed pulleys 3-1 are provided on both sides of the top and bottom of the frame 3, respectively, and a movable pulley 4-1 is provided on the top of the counterweight system 4. After the middle of the traction member 5 passes through the movable pulley 4-1, the two sides of the traction member 5 first pass upward through the fixed pulleys 3-1 on both sides of the top, and then pass downward through the fixed pulleys 3-1 on both sides of the bottom, and finally the two ends of the traction member 5 are connected to the stretching frame 2. The fixed pulley 3-1 is used to turn the traction member 5. The middle of the traction member 5 is subjected to the downward force of the configuration system 4 through the movable pulley 4-1, and then turns through the fixed pulleys 3-1 on both sides of the top and the bottom. The two ends of the traction member 5 are connected to the stretching frame 2, and a lateral backward pulling force is applied to the stretching frame 2.

[0027] The motion detection device includes a laser distance sensor 9 fixed in the frame 3, and a reflector 10 that senses the laser distance sensor 9 is fixed on one side of the movable pulley 4-1. When in use, the reflector 10 moves up and down with the movable pulley 4-1, and the laser distance sensor 9 senses the reflector 10 in real time. The number, time, movement amplitude and other information of the stretching action can be obtained through the change curve of the distance between the reflector 10 and the laser distance sensor 9 and time.

[0028] Guide rods 4-2 are fixed on both sides of the frame 3, the bottom of the movable pulley 4-1 is connected to the pull plate 4-3, guide sleeves 4-4 are fixed on both sides of the pull plate 4-3 and are sleeved on the outside of the guide rods 4-2, a fixed plate 4-5 is provided below the frame 3, and a spring 4-6 is connected between the pull plate 4-3 and the fixed plate 4-5. Figure 3-Figure 4 As shown, when the movable pulley 4-1 moves upward, it pulls the pull plate 4-3 upward, and the spring 4-6 connecting the pull plate 4-3 and the fixed plate 4-5 is stretched to provide resistance.

[0029] A plurality of springs 4-6 are connected between the pull plate 4-3 and the fixed plate 4-5. The bottoms of the springs 4-6 on both sides are fixedly connected to the fixed plate 4-5. A hole plate 4-7 with a through hole is fixed below the middle spring 4-6. A groove 4-8 is provided on the fixed plate 4-5. The hole plate 4-7 can be inserted into the groove 4-8. Through holes are also provided on both sides of the groove 4-8. The pin 4-9 passes through the groove 4-8 and the through hole of the hole plate 4-7 to fix the hole plate 4-7. Figure 5-Figure 6 As shown, if the load needs to be adjusted, multiple springs 4-6 can be set, and the bottoms of the springs 4-6 on both sides are fixedly connected to the fixed plate 4-5 as the basic load. When the pull plate 4-3 is at the bottom position, the orifice plate 4-7 at the bottom of the spring falls into the groove 4-8. When the load needs to be increased, the pin 4-9 is inserted into the through hole of the orifice plate 4-7 to fix the orifice plate 4-7 to the fixed plate 4-5. Multiple groups of adjustable springs 4-6 can be set to increase the range of resistance adjustment.

[0030] The front side of the stretching frame 2 is provided with a footrest 2-2. The stretching frame 2 can be pushed forward by the footrest 2-2 without having to push forward by hand, thereby improving the stretching effect.

[0031] The stretching frame 2 is a U-shaped structure, and cushions 2-1 are respectively provided above both sides of the stretching frame 2. The U-shaped stretching frame can make both sides move synchronously, improve safety effect and comfort, and the elbow or handle can be leaned on the cushion 2-1 during stretching to improve comfort.

[0032] The support frame 1 and the stretching frame 2 are connected by a hinge. The hinge enables the support frame 1 and the stretching frame 2 to rotate relative to each other, which is close to the movement mode of shoulder joint rotation and is more comfortable to use.

[0033] When using this embodiment, the user first sits on the seat 7 with his back against the backrest 8, then pushes the stretching frame 2 forward with his feet through the footrest 2-2, then presses the cushion 2-1 with his arms or elbows, slowly releases the footrest 2-2, and the stretching frame 2 rotates backward under the pulling force of the traction member 5, thereby achieving the effect of chest stretching.

[0034] When in use, the traction member 5 pulls the movable pulley 4 - 1 up and down, and the laser ranging sensor 9 can detect the change curve of the distance between the sensor and the reflective member 10 and time, so as to know the number, time, movement amplitude and other information of the stretching action, and display it on the display control device 6.

[0035] When the magnitude of the stretching resistance needs to be adjusted, different numbers of pins 4-9 can be inserted to connect different numbers of springs 4-6 to the fixing plate 4-5 to provide different magnitudes of resistance.

[0036] The repeated kicking, pushing and pulling movements of the machine can also exercise the coordination of the limbs and the strength of the joints and muscles. Example

[0037] like Figure 7 As shown, the main difference between this embodiment and embodiment 1 lies in the different structure of the counterweight system 4, specifically: guide rods 4-2 are fixed on both sides of the frame 3, the counterweight system 4 includes a plurality of superimposed counterweight plates 4-11, both sides of the counterweight plates 4-11 are sleeved outside the guide rods 4-2, a selection shaft 4-10 is fixedly connected to the bottom of the fixed pulley 3-1, a through hole is provided in the middle of the counterweight plate 4-11 for the selection shaft 4-10 to pass through, a pin hole is provided on one side of the through hole, a selection hole corresponding to the selection pin hole on the side of the counterweight plate 4-11 is provided on the side of the selection shaft 4-10, and an adjustment handle 4-12 is inserted into the pin hole on the side of the counterweight plate 4-11 and the selection hole of the selection shaft 4-10.

[0038] When the present embodiment is used, when it is necessary to adjust the stretching resistance, the handle 4-12 is pulled out and inserted into the pin hole of the corresponding weight plate 4-11. When the movable pulley 4-1 moves upward, it drives the selection shaft 4-10 to move upward, thereby driving all the weight plates 4-11 above the insertion position of the adjustment handle 4-12 to move upward. The structure is simpler, the resistance adjustment range is larger, and the minimum interval is smaller.

Claims

1. A chest stretching training device, comprising a support frame, characterized in that: The support frame (1) is movably connected to the stretching frame (2); a vehicle frame (3) is fixed to one side of the support frame (1); a counterweight system (4) is provided in the vehicle frame (3); the stretching frame (2) is connected to the counterweight system (4) via a traction member (5); a motion detection device is provided in the counterweight system (4); a display control device (6) is provided on one side of the support frame (1); and the motion detection device is electrically connected to the display control device (6).

2. A chest stretching training device according to claim 1, characterized in that: A seat (7) and a back cushion (8) are respectively arranged above the support frame (1).

3. A chest stretching training device according to claim 1, characterized in that: Fixed pulleys (3-1) are respectively provided on both sides of the top and bottom of the frame (3); a movable pulley (4-1) is provided on the top of the counterweight system (4); after the middle of the traction member (5) passes through the movable pulley (4-1), both sides of the traction member (5) first pass upward through the fixed pulleys (3-1) on both sides of the top, and then pass downward through the fixed pulleys (3-1) on both sides of the bottom; finally, both ends of the traction member (5) are connected to the stretching frame (2).

4. A chest stretching training device according to claim 3, characterized in that: The motion detection device comprises a laser distance measuring sensor (9) fixed in the vehicle frame (3), and a reflector (10) which senses the laser distance measuring sensor (9) is fixed on one side of the movable pulley (4-1).

5. A chest stretching training device according to claim 3, characterized in that: Guide rods (4-2) are fixed on both sides of the vehicle frame (3); the bottom of the movable pulley (4-1) is connected to the pull plate (4-3); guide sleeves (4-4) sleeved outside the guide rods (4-2) are fixed on both sides of the pull plate (4-3); a fixing plate (4-5) is provided below the vehicle frame (3); and a spring (4-6) is connected between the pull plate (4-3) and the fixing plate (4-5).

6. A chest stretching training device according to claim 5, characterized in that: A plurality of springs (4-6) are connected between the pulling plate (4-3) and the fixing plate (4-5); the bottoms of the springs (4-6) on both sides are fixedly connected to the fixing plate (4-5); a hole plate (4-7) with a through hole is fixed below the middle spring (4-6); a groove (4-8) is provided on the fixing plate (4-5); the hole plate (4-7) can be inserted into the groove (4-8); through holes are also provided on both sides of the groove (4-8); a latch (4-9) passes through the groove (4-8) and the through hole of the hole plate (4-7) to fix the hole plate (4-7).

7. A chest stretching training device according to claim 3, characterized in that: Guide rods (4-2) are fixed on both sides of the frame (3); the weight system (4) comprises a plurality of stacked weight plates (4-11); both sides of the weight plates (4-11) are sleeved outside the guide rods (4-2); a selection shaft (4-10) is fixedly connected to the bottom of the fixed pulley (3-1); a through hole for the selection shaft (4-10) to pass through is formed in the middle of the weight plates (4-11); a pin hole is formed on one side of the through hole; a selection hole corresponding to the pin hole on the side of the weight plates (4-11) is formed on the side of the selection shaft (4-10); and an adjustment handle (4-12) is inserted into the pin hole on the side of the weight plates (4-11) and the selection hole of the selection shaft (4-10).

8. The chest stretching training device according to claim 1, characterized in that: A footrest (2-2) is provided on the front side of the stretching frame (2).

9. The chest stretching training device according to claim 1, characterized in that: The stretching frame (2) is a U-shaped structure, and cushions (2-1) are respectively provided above both sides of the stretching frame (2).

10. The chest stretching training device according to claim 1, characterized in that: The support frame (1) and the stretching frame (2) are connected in a hinged manner.

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