CN216755288U - Electric control resistance device for muscle strength training - Google Patents

Abstract

The utility model provides an electric control resistance device for muscle strength training, which comprises a stay cord group, a power box, a resistance motor and a controller, wherein the stay cord group comprises a rubber belt and a movable wheel seat combined with one end of the rubber belt, the movable wheel seat is provided with a movable pulley which is pivoted on one end opposite to the rubber belt, and the pulling force of the rubber belt can pass through the center of the movable pulley; the structure of the traditional speed reducing wheel is replaced by the labor-saving structure of the movable pulley, the power belt winding with one end connected with the motor mandrel is wound on the movable pulley, the other end is combined and fixed to form a fulcrum, one end of the motor mandrel, which is connected with the power belt in a rolling mode, forms resistance force with the diameter of the movable pulley as a force arm relative to the fulcrum, provides force application for resisting the force which passes through the center of the movable pulley and is relative to the fulcrum, and the radius of the movable pulley is used as the force arm, so that the load of the motor and the power and power consumption are reduced.

Description

Electric control resistance device for muscle strength training

Technical Field

The utility model relates to the technical field of sports equipment, in particular to an electric control resistance device for muscle strength training.

Background

The existing sports equipment for providing the muscle strength training, such as weight lifting equipment, chest expanding equipment, pulling and lifting equipment and the like, provide the muscle strength training effect of a user in a mode of resisting load, the mode of providing the load of the sports equipment is mainly provided by matching a tension rope with a metal block for hanging a weight, and the resistance used for training is obtained by increasing or decreasing the number of the metal blocks.

Although the size of the load can be adjusted by changing the number of the metal blocks, the metal blocks need to be hung or reduced for replacement, and the weight of each metal block is fixed, so that the load cannot be adjusted in real time, and the size of the load cannot be adjusted finely according to the training condition.

Therefore, the related manufacturers gradually introduce exercise equipment that is modified to provide a load by a motor, and the exercise equipment is mounted on the pull rope by using a conventional speed-reducing wheel device and connected to the motor by using a controller, so that the motor can be controlled by the controller to adjust the amount of training resistance output from the pull rope.

However, the use of the speed reducer not only increases the load of the motor, but also causes power and power consumption due to transmission friction, and affects the smoothness of use to cause poor user experience, which is a problem to be solved urgently by related manufacturers.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to replace the structure of the traditional speed reducing wheel by a movable pulley labor-saving structure, a power belt with one end connected with a motor mandrel is wound on the movable pulley, and the other end is combined and fixed to form a fulcrum, so that the motor mandrel is rolled and connected with one end of the power belt to form a resistance force with the diameter of the movable pulley as a force arm relative to the fulcrum, and the resistance force is applied to resist the force passing through the center of the movable pulley and relative to the fulcrum with the radius of the movable pulley as the force arm, thereby reducing the load of the motor and the power and power consumption.

In order to achieve the above objects and effects, the present invention provides an electrically controlled resistance device for muscle strength training, comprising:

a pulling rope group, which comprises a rubber belt and a movable wheel seat combined with one end of the rubber belt, wherein the movable wheel seat is provided with a movable pulley which is pivoted at the opposite end combined with the rubber belt, and the pulling force of the rubber belt can pass through the center of the movable pulley;

the power box is provided with an outer vertical surface and a positioning rod which is convexly arranged on the outer vertical surface.

The resistance motor is arranged in the power box and is provided with a mandrel penetrating out of the outer vertical surface, the mandrel protrudes out of the outer vertical surface and is positioned below the positioning rod and is combined with a mandrel, the mandrel is wound on one end of a power belt, the other end of the power belt is set to be a sleeved fixed end, and the middle section of the power belt is wound on the upper side of the movable pulley and is fixed on the positioning rod by the fixed end sleeve to form a fulcrum.

And a controller, it electric connection is to the resistance motor, the controller controls the resistance motor to resist the reverse resistance of the rubber belt in the core wheel output.

In an embodiment of the present invention, the power box has a wheel seat rod protruding from the outer vertical surface, the wheel seat rod and the positioning rod are disposed at a lateral distance from the outer vertical surface and are penetrated and pivoted with a fixed pulley, so that one end of the power belt away from the positioning rod is downward wound around the fixed pulley from the opposite side of the positioning rod to connect with the core wheel, and the power box is further provided with an anti-dropping pinch roller disposed at the opposite side of the positioning rod and opposite to the fixed pulley to press the power belt, so as to prevent the power belt from being separated from the core wheel.

In an embodiment of the present invention, the power box further includes two guide rods, the two guide rods are disposed in parallel with the outer vertical surface of the power box at intervals and respectively slide a plurality of sliding sleeves, and the plurality of sliding sleeves respectively have a concave limiting ring groove.

In an embodiment of the utility model, the pull rope set has a transverse guide plate combined between the rubber belt and the movable wheel seat, the transverse guide plate has two concave sleeve portions disposed at two ends, and the two concave sleeve portions are respectively sleeved with the limit ring groove set of one of the sliding sleeves of the sliding set where the two guide rods are located.

In an embodiment of the utility model, the pull string set includes an L-shaped connection plate combined with the rubber belt and the movable wheel seat, the L-shaped connection plate has a horizontal plate and a longitudinal plate combined with the rubber belt, and one end of the rubber belt opposite to the L-shaped connection plate is clamped by the two pressing plates arranged at intervals by the reverse folding sections, and the reverse folding sections and the two pressing plates are screwed through by a plurality of screws and combined with the longitudinal plate for fixing.

In an embodiment of the utility model, the pulling rope set includes a bolt, and the movable wheel seat has a top plate, and the bolt penetrates through the transverse plate and the top plate and protrudes into the movable wheel seat and is fixed by a nut screw set.

In an embodiment of the utility model, the power box has a fixed transverse plate combined with the outer vertical surface, the fixed transverse plate is located between the two guide rods and has two sleeve groove portions recessed at two ends, and the two sleeve groove portions are respectively sleeved with the limit ring groove sets of one of the sliding sleeves of the sliding group where the two guide rods are located.

In an embodiment of the present invention, the power box has two support plates and a base plate for installation and combination, the base plate is combined to the bottom side of the power box and extends toward the direction of the outer vertical surface and exceeds the outer vertical surface, the two support plates are combined to the outer vertical surface at a distance from each other in a group of joint edges, the two support plates are fixed by being combined to the base plate at another joint edge, the base plate has two avoidance slots, the two avoidance slots are arranged between the two support plates at a distance, and the length direction of the avoidance slots is the same as the outer vertical surface.

In an embodiment of the present invention, the power luggage includes two locking sets, the base plate has two locking hole sets arranged at an interval outside the two supporting plates, and the two locking sets respectively include two clamping plates and two long screws for screwing the two clamping plates.

An embodiment of the present invention further provides an electric control resistance device for muscle strength training, which includes:

a pull rope group which comprises a pull rope, a connecting rod and a movable wheel seat, wherein the connecting rod is combined between one end of the pull rope and the movable wheel seat, the movable wheel seat is provided with a movable pulley which is pivoted at the opposite end of the connecting rod, and the pulling force of the pull rope can pass through the center of the movable pulley;

the power box is provided with an outer vertical surface and a positioning rod which is convexly arranged on the outer vertical surface;

a resistance motor which is arranged in the power box and is provided with a mandrel penetrating out of the outer vertical surface, the mandrel protrudes out of the outer vertical surface and is positioned below the positioning rod and is combined with a mandrel, the mandrel is wound with a power belt, the power belt is wound on the upper side of the movable pulley and is combined and fixed with the positioning rod by a fixed end to form a fulcrum, and the power belt is downwards connected with the mandrel by the other end;

and the controller is electrically connected with the resistance motor and controls the resistance motor to output the reverse resistance resisting the inhaul cable at the core wheel.

According to the above description of the utility model, the advantage is that the resistance force with the diameter of the movable pulley as the force arm is formed by rolling the mandrel of the motor and connecting one end of the power belt with the opposite fulcrum, the force application force with the radius of the movable pulley as the force arm is provided to resist the center of the movable pulley and the opposite fulcrum, the resistance force output by the motor can be amplified by the force arm with two times of the length, the load of the motor can be relatively reduced, the utility model can be suitable for the distance between the guide rods of different models, the refitting and use of the existing muscle training sports equipment can be provided, and the practicability and the progress are realized.

Drawings

Fig. 1 is a perspective assembly view of a first embodiment of the present invention.

Fig. 2 is a perspective assembly view of the pull rope assembly according to the first embodiment of the present invention.

Fig. 3 is an exploded perspective view of the cord set according to the first embodiment of the present invention.

Fig. 4 is a schematic perspective view illustrating the installation and use of the training machine according to the first embodiment of the present invention.

Fig. 5 is a schematic plan view of a rear view angle of the first embodiment of the present invention installed on a training machine.

Fig. 6 is a partially enlarged perspective view of the lower structure of fig. 4.

Fig. 7 is a side view partially enlarged plan view of the training machine according to the first embodiment of the present invention.

FIG. 8A is a schematic sectional view taken along line VIII-VIII in FIG. 4.

Fig. 8B is a cross-sectional view of another composite structure according to the first embodiment of the present invention.

FIG. 9 is a perspective view of a resistance motor with a controller electrically connected thereto according to the present invention.

FIG. 10 is a schematic view of the movable wheel seat and the transverse guide plate of FIG. 8A being pulled up along the guide rod.

Fig. 11 is a perspective assembly view of a second embodiment of the pull cord set of the present invention.

Fig. 12 is an exploded perspective view of a second embodiment of a pull cord set in accordance with the present invention.

Fig. 13 is a schematic perspective view illustrating the installation and use of a training machine according to a second embodiment of the pull cord set of the present invention.

Fig. 14 is a partially enlarged perspective view of the lower structure of fig. 13.

Description of reference numerals: 10-a guy rope group; 11-a rubber belt; 111-reverse-folded section; 112-a platen; 113-a screw; 12-a movable wheel seat; 121-a movable pulley; 122-a top plate; 13-a transverse guide plate; 131-a pocket portion; 14-L fishplate bar; 141-a transverse plate; 142-a longitudinal plate; 15-bolt; 151. 172-screw cap; 16-a pull cable; 17-connecting rod; 171-small diameter thread section; 20-a power box; 21-an outer facade; 22-a positioning rod; 23-wheel seat post; 231-a fixed pulley; 24-fixing the transverse plate; 241-grooving part; 25-a base plate; 251-avoiding the slot; 252-a set of lock holes; 26-a support plate; 27-locking group; 271-clamp plate; 272-long screws; 28-anti-dropping pinch roller; 30-a resistance motor; 31-a mandrel; 32-core wheel; 33-a power belt; 331-fixed end; 40-a controller; 50-a guide rod; 51-a sliding sleeve; 511-a limit ring groove; 60-training the machine; 61-base frame.

Detailed Description

Referring to fig. 1 to 14, an electrically controlled resistance device for muscle strength training according to the present invention includes two embodiments, a first embodiment of which is shown in fig. 1 to 10, including:

a rope pulling set 10, comprising a rubber belt 11 and a movable wheel seat 12 combined with one end of the rubber belt 11, wherein the movable wheel seat 12 is provided with a movable pulley 121 pivoted at the opposite end combined with the rubber belt 11, and the pulling force of the rubber belt 11 can pass through the center A of the movable pulley 121.

A power box 20 having an outer vertical surface 21 and a positioning rod 22 protruding from the outer vertical surface 21.

A resistance motor 30, which is disposed in the power box 20 and has a spindle 31 penetrating from the outer surface 21, the spindle 31 protrudes from the outer surface 21 and is located below the positioning rod 22 and is combined with a spindle 32, the spindle 32 is wound around one end of a power belt 33, the other end of the power belt 33 is set as a sleeve-shaped fixed end 331, the middle section of the power belt 33 is wound around the upper side of the movable pulley 121 and is fixed to the positioning rod 22 by the set of the fixed end 331 to form a fulcrum B.

And a controller 40, as shown in fig. 9, electrically connected to the resistance motor 30, wherein the controller 40 controls the resistance motor 30 to output a resistance force against the rubber belt 11 at the core wheel 32.

In connection with the above-mentioned structure, the first embodiment of the present invention is further described below, and as shown in fig. 4 to 8A, the present invention is installed in the training machine 60 in a use state, and the two guide rods 50 and the power box 20 internally coupled with the resistance motor 30 are installed on the base frame 61 of the training machine 60.

As shown in fig. 5 to 8A, the power belt 33 is wound around the upper side of the movable pulley 121 and is fixed to the positioning rod 22 by a fixing end 331 to form a pivot B, and the other end of the power belt 33 is wound upward around the upper side of the movable pulley 121 and is connected downward to the core wheel 32. When a user who provides gravity training pulls the rubber belt 11 to make the movable wheel seat 12 and the transverse guide plate 13 pulled to the position shown in fig. 10 along the arrow direction of fig. 8A, since the pulling force of the rubber belt 11 passes through the center a of the movable pulley 121, an upward force with the radius of the movable pulley 121 as a force applying arm is formed relative to the pivot point B, and the pulling force of the resistance motor 30 for winding the central wheel 32 and pulling the power belt 33 forms a resisting arm with the diameter of the movable pulley 121 as a force resisting arm; because the resistance motor 30 is the length of the resistance arm through the diameter of the movable pulley 121, and the user is twice the length of the force application arm through the radius of the movable pulley 121, the resistance motor 30 can resist the labor saving device for the user to operate the force application only by outputting half of the force application, and the muscle strength training use is provided.

Therefore, compared with the prior art using a speed reducing wheel device, the speed reducing wheel device can effectively reduce the load of the motor and the consumption of power and power supply, so as to reduce the use cost, and improve the use smoothness and the user friendliness.

In the following, the features of the components of the first embodiment of the present invention are further described in detail, in the above-mentioned fig. 1 to 10, the power box 20 has a wheel seat rod 23 protruding from the outer vertical surface 21, the wheel seat rod 23 and the positioning rod 22 are transversely disposed at a distance from each other on the outer vertical surface 21 and are pivotally disposed with a fixed pulley 231 passing through the wheel seat, so that one end of the power belt 33 away from the positioning rod 22 is downwardly wound around the fixed pulley 231 from the opposite side of the positioning rod 22 to connect with the core wheel 32, and as shown in fig. 8B, which is a cross-sectional schematic view of another assembly structure of the first embodiment of the present invention, the power box 20 is further provided with an anti-releasing wheel 28, the anti-releasing wheel 28 is disposed on the opposite side of the positioning rod 22 and is opposite to the fixed pulley 231 to press against the power belt 33, so as to prevent the power belt 33 from being separated from the core wheel 32. Therefore, stable guidance of the power belt 33 in the winding operation of the movable pulley 121 is provided by the fixed pulley 231, and the disengagement of the power belt 33 is further prevented by the pressing of the disengagement preventing roller 28 against the power belt 33.

Secondly, two guide rods 50 are further included, the two guide rods 50 are arranged on the machine table 60 in parallel with the outer vertical surface 21 of the power box 20 at intervals and are respectively slidably assembled with a plurality of sliding sleeves 51, and the plurality of sliding sleeves 51 are respectively provided with a concave limiting ring groove 511. Furthermore, the rope pulling set 10 has a transverse guide plate 13 combined between the rubber belt 11 and the movable wheel seat 12, the transverse guide plate 13 has two concave sleeve portions 131 disposed at two ends, and the two concave sleeve portions 131 are respectively sleeved with the limit ring groove 511 of one of the sliding sleeves 51 of the sliding set where the two guide rods 50 are located. Therefore, when the movable wheel seat 12 is pulled by the rubber belt 11 and the power belt 33 at both ends, the sliding sleeve 51 is slid and lifted along the two guide rods 50 arranged in parallel by the two end sets of the sliding sleeve 51 through the transverse guide plate 13, and the sliding of the sliding sleeve 51 provides stable guiding for the movable wheel seat 12 to smoothly lift, and further reduces noise caused by vibration.

Moreover, the pulling rope set 10 includes an L-shaped connecting plate 14 combined with the rubber belt 11 and the movable wheel seat 12, the L-shaped connecting plate 14 has a horizontal plate 141 and a longitudinal plate 142 combined with the rubber belt 11, and one end of the rubber belt 11 opposite to the L-shaped connecting plate 14 is clamped with two pressing plates 112 arranged at intervals by a reverse folding section 111, and the reverse folding section 111 is screwed through by a plurality of screws 113, and the two pressing plates 112 are combined with the longitudinal plate 142 for fixing. Moreover, the pulling rope set 10 includes a bolt 15, and the movable wheel seat 12 has a top plate 122, the bolt 15 penetrates through the horizontal plate 141 and the top plate 122 and protrudes into the movable wheel seat 12, and is screwed and fixed by a nut 151; therefore, through the combination, the rubber belt 11 is combined with the L-shaped connecting plate 14, the movable wheel seat 12 is conveniently assembled through the bolt 15, and the firm combination effect is achieved.

In addition, as shown in fig. 1 and fig. 6, the power box 20 has a fixed cross plate 24 combined with the outer vertical surface 21, the fixed cross plate 24 is located between the two guide rods 50 and has two groove portions 241 concavely disposed at two ends, and the two groove portions 241 are respectively sleeved with the limit ring groove 511 of one of the sliding sleeves 51 of the sliding set where the two guide rods 50 are located; therefore, by the combination, the two guide rods 50 are further provided with firm support, so as to improve the stability and smoothness of guiding the transverse guide plate 13 combined with the movable wheel seat 12 to slide and lift along the two guide rods 50.

As shown in fig. 1, 6 and 7, the power box 20 has two support plates 26 and a base plate 25 for installation and combination, the base plate 25 is combined on the bottom side of the power box 20 and extends toward the direction of the outer vertical surface 21 and beyond the outer vertical surface 21, the two support plates 26 are combined at a set of joint edges at a distance from two sides of the outer vertical surface 21, the two support plates 26 are respectively combined and fixed on the base plate 25 at another joint edge, the base plate 25 has two avoiding long holes 251, the two avoiding long holes 251 are arranged at a distance between the two support plates 26, and the length direction of the avoiding long holes 251 is the same as the length direction of the outer vertical surface 21. Therefore, the two avoiding long holes 251 are arranged in the same direction as the outer surface 21 in the longitudinal direction, so that the training machine base 60 can be easily assembled with the set to quickly complete the assembling. Moreover, by the length of the avoiding long holes 251 arranged in the same direction, when two guide rods 50 of different model training machines 60 are arranged at different intervals, greater flexibility and applicability can be provided.

As shown in fig. 1, 6 and 7, the power box 20 includes two locking sets 27, the base plate 25 has two locking hole sets 252 spaced apart from each other and arranged on the outer sides of the two support plates 26, and the two locking sets 27 respectively include two clamping plates 271 and two long screws 272 for screwing the two clamping plates 271. Therefore, the two locking sets 27 are provided to be screwed and combined by two long screws 272 respectively through the plurality of threaded holes arranged at intervals in the two locking hole sets 252 to be clamped and fixed on the base frame 61 of the training machine 60, and when the base frames 61 of different types of training machines 60 have different sizes, the plurality of threaded holes of the locking hole sets 252 can be combined at an appropriate interval, so as to achieve a larger installation applicability.

Finally, as shown in fig. 11 to 14, a second embodiment of the pull rope set of the present invention is different from the first embodiment in that the pull rope set 10 is connected to the movable wheel seat 12 by connecting a connecting rod 17 to one end of a pull rope (which may be of a steel cable material) 16, instead of connecting the rubber belt 11 to the movable wheel seat 12 by connecting an L-shaped connecting plate 14 and a bolt 15; the connecting rod 17 has a small-diameter threaded section 171 protruding from the opposite end of the cable 16, the small-diameter threaded section 171 penetrates through the transverse guide plate 13 and the top plate 122 and protrudes into the movable wheel seat 12, and a nut 172 is screwed to the small-diameter threaded section 171 for fixing. Therefore, through the combination, the pulling cable 16, the movable wheel seat 12 and the transverse guide plate 13 can be conveniently assembled through the connecting rod 17, and in combination with the combination of the power box 20 and the resistance motor 30, when the training machine 60 is installed, another structure is selected to be suitable for installation of training machines 60 of different brands and different types, and the requirements of modification and use are met.

Claims (10)

1. An electrically controlled resistance device for muscle strength training, comprising:

a pulling rope group, which comprises a rubber belt and a movable wheel seat combined with one end of the rubber belt, wherein the movable wheel seat is provided with a movable pulley which is pivoted at the opposite end combined with the rubber belt, and the pulling force of the rubber belt passes through the center of the movable pulley;

the power box is provided with an outer vertical surface and a positioning rod which is convexly arranged on the outer vertical surface;

the resistance motor is arranged in the power box and is provided with a mandrel penetrating out of the outer vertical surface, the mandrel protrudes out of the outer vertical surface and is positioned below the positioning rod and is combined with a mandrel, the mandrel is wound on one end of a power belt, the other end of the power belt is set to be a sleeved fixed end, and the middle section of the power belt is wound on the upper side of the movable pulley and is fixed on the positioning rod by the fixed end sleeve set to form a fulcrum;

and a controller, it electric connection is to the resistance motor, the controller controls the resistance motor to resist the reverse resistance of the rubber belt in the core wheel output.

2. The electric resistance control device for muscle training of claim 1, wherein the power box has a wheel seat bar protruding from the outer vertical surface, the wheel seat bar and the positioning bar are transversely spaced from the outer vertical surface and are provided with a fixed pulley through which the fixed pulley is pivotally mounted, such that an end of the power belt away from the positioning bar is downwardly wound around the fixed pulley from the opposite side of the positioning bar to connect with the core wheel, and the power box is further provided with an anti-release pressing wheel, the anti-release pressing wheel is disposed on the opposite side of the positioning bar and is opposite to the fixed pulley to press against the power belt, so as to prevent the power belt from being separated from the core wheel.

3. The electrically controlled resistance device according to claim 1, further comprising two guide rods, wherein the two guide rods are spaced apart from each other in parallel with the outer surface of the power box and are slidably coupled to a plurality of sliding sleeves, and each of the sliding sleeves has a concave limiting ring groove.

4. The electric control resistance device for muscle training of claim 3, wherein the pulling string set comprises a transverse guiding board combined between the rubber belt and the movable wheel seat, the transverse guiding board comprises two concave sleeve portions disposed at two ends, and the two concave sleeve portions are respectively sleeved with the limiting ring groove of one sliding sleeve of the sliding set where the two guiding rods are located.

5. The electric resistance control device for muscle training of claim 1, wherein the pull string set comprises an L-shaped connecting plate combined with the rubber belt and the movable wheel seat, the L-shaped connecting plate comprises a transverse plate and a longitudinal plate combined with the rubber belt, and the rubber belt is clamped by the reverse folding section and the two pressing plates arranged at intervals at one end of the L-shaped connecting plate, and the plurality of screws are screwed through the reverse folding section and the two pressing plates to be combined with the longitudinal plate for fixation.

6. The electric control resistance device for muscle training of claim 5, wherein the pulling rope set comprises a bolt, and the movable wheel seat has a top plate, the bolt penetrates through the transverse plate and the top plate and protrudes into the movable wheel seat to be fixed by a nut screw set.

7. The electric resistance control device for muscle training of claim 3, wherein the power box has a fixed cross plate combined with the outer vertical surface, the fixed cross plate is located between the two guide rods and has two groove portions recessed at two ends, and the two groove portions are respectively sleeved with the limit ring groove sets of one of the sliding sleeves of the sliding set where the two guide rods are located.

8. The electrically controlled resistance device according to claim 1, wherein the power box has two supporting plates and a base plate for mounting and combining, the base plate is combined on the bottom side of the power box and extends toward the outer vertical surface and beyond the outer vertical surface, the two supporting plates are combined at a position close to two sides of the outer vertical surface at a distance of one joint edge, and the two supporting plates are fixed by being combined at the base plate at the other joint edge, the base plate has two avoiding slots, the two avoiding slots are arranged between the two supporting plates at a distance of one joint edge and have the same length direction as the outer vertical surface.

9. The electrically controlled resistance device according to claim 8, wherein the power pack comprises two locking sets, the base plate has two locking hole sets spaced apart from each other and disposed outside the two supporting plates, the two locking sets respectively comprise two clamping plates and two long screws for screwing the two clamping plates.

10. An electrically controlled resistance device for muscle strength training, comprising:

a pull rope group which comprises a pull rope and a connecting rod and a movable wheel seat, wherein the connecting rod is combined between one end of the pull rope and the movable wheel seat, the movable wheel seat is provided with a movable pulley which is pivoted at the opposite end of the pull rope, and the pulling force of the pull rope passes through the center of the movable pulley;

the power box is provided with an outer vertical surface and a positioning rod which is convexly arranged on the outer vertical surface;

a resistance motor which is arranged in the power box and is provided with a mandrel penetrating out of the outer vertical surface, the mandrel protrudes out of the outer vertical surface and is positioned below the positioning rod and is combined with a mandrel, the mandrel is wound with a power belt, the power belt is wound on the upper side of the movable pulley and is combined and fixed with the positioning rod by a fixed end to form a fulcrum, and the power belt is downwards connected with the mandrel by the other end;

and the controller is electrically connected with the resistance motor and controls the resistance motor to output the reverse resistance resisting the inhaul cable at the core wheel.

Images