Tension testing device for arm strength stretcher

Abstract

The utility model discloses a tension testing device for an arm power stretcher, which relates to the technical field of arm power stretchers and comprises a bottom plate and an adjusting frame. Adjusting grooves are formed in the two sides of the top face of the bottom plate, main motors are fixed to the two acting side faces of the bottom plate, output shafts of the main motors are connected with the outer side ends of screw rods, the screw rods are located in the adjusting grooves, the bottom ends of the adjusting frames are slidably connected with the adjusting grooves, and screw holes in the middles of the bottom ends of the adjusting frames are in threaded connection with the screw rods. According to the tension testing device for the arm strength stretcher, the positions of the two clamping frames are adjusted by rotating the rotating wheel, so that the arm strength stretchers of different specifications are fixed, the tension of the arm strength stretchers can be tested by starting the main motor to be matched with the tension sensor, and the tension of the arm strength stretchers can be tested. Meanwhile, the arranged protection shell is matched with the extension shell, so that the safety problem caused by splashing due to the fact that the arm power stretcher is damaged due to too large tension in the testing process can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of arm stretchers, in particular to a tension testing device for an arm stretcher. Background Art

[0002] With the development of society, people's quality of life is constantly improving, and fitness is getting more and more attention. The ultimate goal of fitness is to strengthen the body, enhance the physique, and make our body healthier and healthier. Fitness is not blind. Only planned and reasonable training can effectively play an effective role. Various sports equipment will inevitably be used in fitness training. Different fitness equipment, combined with the correct operation method, can effectively strengthen the corresponding parts. For example, when training the arms to enhance arm strength, stretchers are often used. The principle is to stretch multiple springs through the arms and use the elastic force of the springs as resistance to train arm strength. It is simple to use but the effect is very good. The current arm stretcher needs to use a tensile testing device to perform a tensile test on the equipment before use. Traditional testing devices are mostly vertical stretching, which is inconvenient to test arm stretchers of different specifications. Moreover, due to the lack of protective structure, it is easy to break during the tensile test, causing splashing and safety problems. For this reason, we propose an arm stretcher tensile testing device. For this reason, we propose an arm stretcher tensile testing device. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide an arm stretcher tension testing device. The position of the two brackets can be adjusted by rotating the rotating wheel to fix the arm stretchers of different specifications. The tension of the arm stretcher can be tested by starting the main motor in conjunction with the tension sensor. At the same time, the protective shell and the extension shell provided can prevent the arm stretcher from being damaged by excessive tension during the test, causing splashing and safety problems, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present utility model provides the following technical solutions: an arm stretcher tension testing device, comprising a base plate and an adjustment frame;

[0005] Bottom plate: Adjustment slots are provided on both sides of the top surface. Main motors are fixed to both active sides of the bottom plate. The output shaft of the main motor is connected to the outer end of the screw, which is located inside the adjustment slot. The bottom end of the adjustment frame is slidably connected to the adjustment slot. The screw hole in the middle of the bottom end of the adjustment frame is threadedly connected to the screw. A fixing bolt is fixed inside the adjustment frame. The fixing bolt is threadedly installed with the screw hole on the outer side of the tension sensor. A fixing unit is installed on the inner end of the tension sensor. A protective unit is provided on the top surface of the bottom plate.

[0006] It also includes a controller, which is arranged on the front side of the top surface of the base plate. The input end of the main motor is electrically connected to the output end of the controller, the output end of the tension sensor is electrically connected to the input end of the controller, and the input end of the controller is electrically connected to the output end of the external power supply.

[0007] Start the main motor to drive the screw to rotate to adjust the position of the adjustment frame, and use the tension sensor to test the tension of the arm stretcher.

[0008] Furthermore, the fixing unit includes a support base, a fixed shaft, a bracket, a bidirectional screw and a rotating wheel. The fixed shaft passes through the through hole inside the tension sensor and is plugged into the mounting hole on the outer side of the support base. The front side of the support base is rotatably connected to the rotating wheel. The rear end of the rotating wheel is connected to the front end of the bidirectional screw. The threads at both ends of the bidirectional screw have opposite rotation directions. There are two brackets and they are respectively slidably connected to the inside of the support base. The screw hole at the bottom end of the bracket is threadedly connected to the bidirectional screw. The rotating wheel drives the bidirectional screw to rotate to adjust the position of the two brackets, thereby fixing the handle of the arm stretcher. It can also be adjusted according to the specifications of the arm stretcher.

[0009] Furthermore, the protective unit includes an extension shell, a slider, a protective shell, a connecting seat, a connecting head and a motor. The connecting seat is fixed on the top surface of the base plate. A motor is provided on the left side of the connecting seat. The output shaft of the motor is connected to the connecting head rotating inside the connecting seat. The front end of the connecting head is connected to the rear side of the protective shell. The extension shell has two sliders fixed inside. The slider is slidably connected to the slide groove on the top surface of the protective shell. The input end of the motor is electrically connected to the output end of the controller. The motor is started to drive the protective shell cover to the outside of the arm stretcher. At the same time, the slider slides in the slide groove to unfold the extension shell, thereby preventing the arm stretcher from breaking and splashing due to excessive tension during testing.

[0010] Furthermore, it also includes a mounting groove, a mounting bracket and an anti-slip pad. There are four mounting grooves and they are respectively opened at the four corners of the bottom surface of the base plate. The four corners of the top surface of the anti-slip pad are fixed with mounting brackets. The mounting brackets are plugged into the mounting grooves accordingly. The mounting brackets are inserted into the interior of the mounting grooves to install the anti-slip pad to increase the stability of the device placement.

[0011] Furthermore, it also includes a limit seat and a shift lever. The limit seat is fixed to the bottom surface inside the adjustment frame. The right side of the limit seat is rotatably connected to the shift lever. The limit seat and the shift lever can increase the firmness of the installation of the tension sensor.

[0012] Furthermore, it also includes a display screen, which is installed on the front side of the protective shell. The input end of the display screen is electrically connected to the output end of the controller. The display screen can conveniently display the test data, making it convenient for personnel to view.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the arm force stretcher tension test device has the following advantages:

[0014] 1. Adjust the position of the two brackets by rotating the wheel to drive the bidirectional screw to rotate, so as to fix the handle of the arm stretcher. At the same time, it can also be adjusted according to the different specifications of the arm stretcher. Start the main motor to drive the screw to rotate to adjust the position of the adjustment bracket. The tension of the arm stretcher can be tested with the tension sensor.

[0015] 2. By starting the motor to drive the protective shell cover on the outside of the arm stretcher, the slider slides in the slide groove to unfold the extension shell, thereby preventing the arm stretcher from breaking and splashing due to excessive tension during testing. The display screen can conveniently display the test data, making it convenient for personnel to view. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the protection unit of the utility model;

[0018] Figure 3 This is a schematic diagram of the fixed unit structure of the utility model.

[0019] In the figure: 1 base plate, 2 fixing unit, 21 support seat, 22 fixed shaft, 23 bracket, 24 bidirectional screw, 25 rotating wheel, 3 protection unit, 31 extension shell, 32 slider, 33 protection shell, 34 connecting seat, 35 connecting head, 36 motor, 4 adjustment slot, 5 screw, 6 main motor, 7 adjustment frame, 8 fixing bolt, 9 tension sensor, 10 mounting slot, 11 mounting frame, 12 anti-slip pad, 13 limit seat, 14 gear lever, 15 display screen, 16 controller. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-3 , this embodiment provides a technical solution: an arm stretcher tension testing device, comprising a base plate 1 and an adjustment frame 7;

[0022] Bottom plate 1: There are adjustment slots 4 on both sides of the top surface. The main motor 6 is fixed on both sides of the bottom plate 1. The output shaft of the main motor 6 is connected to the outer end of the screw 5. The screw 5 is located inside the adjustment slot 4. The bottom end of the adjustment frame 7 is slidably connected to the adjustment slot 4. The screw hole in the middle of the bottom end of the adjustment frame 7 is threadedly connected to the screw 5. A fixing bolt 8 is fixed inside the adjustment frame 7. The fixing bolt 8 is threadedly installed with the screw hole on the outer side of the tension sensor 9. The inner end of the tension sensor 9 is installed with a fixing unit 2, and the fixing unit 2 includes It includes a support base 21, a fixed shaft 22, a bracket 23, a bidirectional screw 24 and a rotating wheel 25. The fixed shaft 22 passes through the through hole inside the tension sensor 9 and is plugged into the mounting hole on the outer side of the support base 21. The front side of the support base 21 is rotatably connected to the rotating wheel 25. The rear end of the rotating wheel 25 is connected to the front end of the bidirectional screw 24. The threads at both ends of the bidirectional screw 24 rotate in opposite directions. The bracket 23 has two and is respectively slidably connected to the inside of the support base 21. The screw hole at the bottom end of the bracket 23 is threadedly connected to the bidirectional screw 24. The rotating wheel 25 drives the bidirectional screw 24 to rotate to adjust the position of the two brackets 23, thereby fixing the handle of the arm stretcher. It can also be adjusted according to the different specifications of the arm stretcher. A protective unit 3 is provided on the top surface of the base plate 1. The protective unit 3 includes an extension shell 31, a slider 32, a protective shell 33, a connecting seat 34, a connecting head 35 and a motor 36. The connecting seat 34 is fixed to the top surface of the base plate 1. A motor 36 is provided on the left side of the connecting seat 34. The output shaft of the motor 36 is connected to the connecting head 35 rotating inside the connecting seat 34. The front end of the connecting head 35 is connected to the rear side of the protective shell 33. The extension shell 31 has two sliders 32 fixed inside. The slider 32 is slidably connected to the slide groove on the top surface of the protective shell 33. The input end of the motor 36 is electrically connected to the output end of the controller 16. When the motor 36 is started, the protective shell 33 is covered on the outside of the arm stretcher. At the same time, the slider 32 slides in the slide groove to unfold the extension shell 31, thereby preventing the arm stretcher from breaking and splashing due to excessive tension during testing.

[0023] Among them, it also includes a controller 16, the controller 16 is arranged on the front side of the top surface of the base plate 1, the input end of the main motor 6 is electrically connected to the output end of the controller 16, the output end of the tension sensor 9 is electrically connected to the input end of the controller 16, the input end of the controller 16 is electrically connected to the output end of the external power supply, and the main motor 6 is started to drive the screw 5 to rotate to adjust the position of the adjustment frame 7. In conjunction with the tension sensor 9, the tension of the arm stretcher can be tested. It also includes a mounting groove 10, a mounting frame 11 and an anti-slip pad 12. There are four mounting grooves 10 and they are respectively opened at the four corners of the bottom surface of the base plate 1. The four corners of the top surface of the anti-slip pad 12 are fixed with mounting frames 11, and the mounting frame 11 and the mounting frame 11 are fixed. The mounting groove 10 is plugged in correspondingly, and the mounting frame 11 is inserted into the inside of the mounting groove 10, so as to install the anti-slip pad 12 to increase the stability of the device placement. It also includes a limit seat 13 and a gear lever 14. The limit seat 13 is fixed to the bottom surface inside the adjustment frame 7, and the right side of the limit seat 13 is rotatably connected to the gear lever 14. The set limit seat 13 cooperates with the gear lever 14 to increase the firmness of the installation of the tension sensor 9. It also includes a display screen 15. The display screen 15 is installed on the front side of the protective shell 33. The input end of the display screen 15 is electrically connected to the output end of the controller 16. The display screen 15 can conveniently display the test data, so that it is convenient for personnel to view.

[0024] The working principle of the arm tensioner tension test device provided by the present invention is as follows: first, the mounting frame 11 is inserted into the interior of the mounting groove 10, thereby installing the anti-slip pad 12 to increase the stability of the device placement, and then the screw hole on the outer side of the tension sensor 9 is threadedly installed with the fixing bolt 8, and the set limit seat 13 is combined with the gear lever 14 to increase the firmness of the installation of the tension sensor 9, and then the fixed shaft 22 is inserted through the mounting hole on the surface of the support seat 21 and connected with the through hole on the inner end of the tension sensor 9, and the rotating wheel 25 drives the bidirectional screw 24 to rotate to adjust the position of the two brackets 23, thereby The arm stretcher is fixed at the handle and can also be adjusted according to the specifications of the arm stretcher. The main motor 6 is started to drive the screw 5 to rotate to adjust the position of the adjustment frame 7. The tension of the arm stretcher can be tested in conjunction with the tension sensor 9. During the test, the motor 36 is started to drive the protective shell 33 to cover the outside of the arm stretcher. At the same time, the slider 32 slides in the slide groove to unfold the extension shell 31, thereby preventing the arm stretcher from breaking and splashing due to excessive tension during the test. Finally, the display screen 15 can conveniently display the test data, making it convenient for personnel to view.

[0025] It is worth noting that the controller 16 disclosed in the above embodiment uses the S7-200 model. The motor 36 and main motor 6 can be freely configured according to the actual application scenario. The recommended servo motor is the 80M-03230C10-C model, and the tension sensor 9 can be the LZ-LAL model. Controller 16 controls the operation of motor 36, main motor 6, tension sensor 9, and display screen 15 using methods commonly used in the prior art.

[0026] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. Arm tensile test device, characterized by: It comprises a base plate (1) and an adjustment frame (7); Bottom plate (1): both sides of the top surface are provided with adjustment grooves (4), main motors (6) are fixed on both sides of the bottom plate (1), the output shaft of the main motor (6) is connected to the outer end of the screw (5), the screw (5) is located inside the adjustment groove (4), the bottom end of the adjustment frame (7) is slidably connected to the adjustment groove (4), the screw hole in the middle of the bottom end of the adjustment frame (7) is threadedly connected to the screw (5), a fixing bolt (8) is fixed inside the adjustment frame (7), the fixing bolt (8) is threadedly installed with the screw hole on the outer side of the tension sensor (9), the inner end of the tension sensor (9) is installed with a fixing unit (2), and the top surface of the bottom plate (1) is provided with a protective unit (3); The invention further comprises a controller (16), wherein the controller (16) is arranged on the front side of the top surface of the base plate (1), the input end of the main motor (6) is electrically connected to the output end of the controller (16), the output end of the tension sensor (9) is electrically connected to the input end of the controller (16), and the input end of the controller (16) is electrically connected to the output end of an external power supply.

2. The arm tensioner tensile testing device according to claim 1, characterized in that: The fixing unit (2) comprises a support base (21), a fixed shaft (22), a bracket (23), a bidirectional screw (24) and a rotating wheel (25); the fixed shaft (22) passes through the through hole inside the tension sensor (9) and is plugged into the mounting hole on the outer side of the support base (21); the front side of the support base (21) is rotatably connected to the rotating wheel (25); the rear side end of the rotating wheel (25) is connected to the front side end of the bidirectional screw (24); the threads at both ends of the bidirectional screw (24) rotate in opposite directions; the bracket (23) has two and is respectively slidably connected to the inside of the support base (21); the screw hole at the bottom end of the bracket (23) is threadedly connected to the bidirectional screw (24).

3. The arm tensioner tensile testing device according to claim 1, characterized in that: The protection unit (3) comprises an extension shell (31), a slider (32), a protection shell (33), a connecting seat (34), a connecting head (35) and a motor (36). The connecting seat (34) is fixed on the top surface of the base plate (1). The left side of the connecting seat (34) is provided with a motor (36). The output shaft of the motor (36) is connected to the connecting head (35) rotating inside the connecting seat (34). The front side end of the connecting head (35) is connected to the rear side of the protection shell (33). The extension shell (31) has two sliders (32) fixed therein. The sliders (32) are slidably connected to the slide groove on the top surface of the protection shell (33). The input end of the motor (36) is electrically connected to the output end of the controller (16).

4. The arm tensioner tensile testing device according to claim 1, characterized in that: The invention also includes a mounting groove (10), a mounting frame (11) and an anti-skid pad (12). The mounting grooves (10) are four and are respectively opened at the four corners of the bottom surface of the base plate (1). The four corners of the top surface of the anti-skid pad (12) are fixed with mounting frames (11). The mounting frames (11) are correspondingly plugged into the mounting grooves (10).

5. The arm tensioner tension testing device according to claim 1, characterized in that: It also includes a limiting seat (13) and a shift lever (14), wherein the limiting seat (13) is fixed to the bottom surface inside the adjustment frame (7), and the right side of the limiting seat (13) is rotatably connected to the shift lever (14).

6. The arm tensioner tension testing device according to claim 3, characterized in that: It also includes a display screen (15), which is installed on the front side of the protective shell (33), and the input end of the display screen (15) is electrically connected to the output end of the controller (16).

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