CN116650903A - Rope pulling resistor with high flexibility and applicability - Google Patents

Abstract

The invention discloses a pull rope resistor with high flexibility and applicability, which comprises a device frame body, wherein the device frame body comprises two end plates which are oppositely arranged, the two end plates are connected through side plates, a rotating shaft is arranged between the two end plates, a resistance component is arranged on the rotating shaft, a wire spool is further fixed at one end of the rotating shaft, and a pull rope is wound on the wire spool; a locking seat is arranged between the two side panels, a locking component is arranged on the locking seat, a controller is also arranged on the end panel corresponding to the locking component, and the controller controls the locking component so as to control the resistance component. The rope pulling resistor with higher flexibility and applicability can be used for improving and expanding various body-building equipment, so that the body-building equipment has smaller volume, lighter weight and richer and more convenient functions, meets the increasingly richer body-building requirements of people, is convenient to install and carry, and has better applicability and practical significance.

Description

Rope pulling resistor with high flexibility and applicability

Technical Field

The invention belongs to the technical field of body-building auxiliary equipment, and particularly relates to a pull rope resistor with high flexibility and applicability.

Background

Along with the improvement of living standard, more and more people begin to pay attention to self figure management, more and more people walk into gymnasiums to participate in body-building exercises, and various body-building equipment also appears on the market; among them, strength training equipment is a relatively common type of fitness equipment. The existing strength training equipment basically adopts metal blocks or other elastic structures as counterweights to provide body-building resistance, the volume of the counterweights is large and the adjustment is inconvenient, besides the special installation frame is needed to ensure the use safety, the whole equipment occupies large and heavy space, the installation and the transportation are inconvenient, and the strength training equipment is generally only suitable for large-scale body-building equipment which is fixedly installed in gymnasiums like a portal frame, a chest pushing machine, a large bird and the like, and the household use is relatively inconvenient. And the use is more complicated, the adjustment is more inconvenient, and the user experience needs to be further improved.

Disclosure of Invention

The invention aims to provide a pull rope resistor with higher flexibility and applicability, and solves the problems that the existing strength body-building equipment is large in size and weight, not convenient to move and install and adjust, and user experience is to be further improved.

The technical scheme adopted by the invention is as follows;

the pull rope resistor with high flexibility and applicability comprises a device frame body, wherein the device frame body comprises two end plates which are oppositely arranged, the two end plates are connected through a side plate, a rotating shaft is arranged between the two end plates, a resistance component is arranged on the rotating shaft, a wire spool is further fixed at one end of the rotating shaft, and a pull rope is wound on the wire spool; a locking seat is arranged between the two side panels, a locking component is arranged on the locking seat, a controller is also arranged on the end panel corresponding to the locking component, and the controller controls the locking component so as to control the resistance component.

The invention is also characterized in that:

the pulley assembly comprises a reversing pulley block and a universal pulley block.

The reversing pulley block comprises a mounting seat and a reversing pulley, wherein the mounting seat is connected between the two side panels close to the end panel, and the reversing pulley is arranged on the mounting seat.

The universal pulley block comprises a rotating part connected to the side panel, a base is arranged on the rotating part, a pulley body is arranged in the base, a guide rod is rotatably arranged on the base, a ring component is arranged at one end, far away from the base, of the guide rod, and a limit rod is arranged on the base corresponding to the guide rod.

The resistance component comprises a plurality of resistance units, each resistance unit comprises a storage box and a spring arranged in the storage box, the storage box is further provided with a cover plate, the storage box and the spring are coaxially arranged on a rotating shaft, a key slot is formed in the outer side wall of the rotating shaft, the end part of the inner ring of the spring is embedded into the key slot to be connected with the rotating shaft, the end part of the outer ring of the spring is connected with the inner wall of the storage box, and a plurality of meshing teeth are arranged on the outer ring of the storage box along the circumferential interval of the outer ring of the spring.

The two ends of each resistance unit are respectively provided with a flange bearing at the position corresponding to the rotating shaft, and the rotating shaft is respectively provided with a plane thrust bearing between every two resistance units.

The locking assembly comprises a plurality of locking units, each locking unit is arranged on the locking seat, each locking unit comprises a driver, a driving shaft, a locking block, an elastic component and a clamping plate, the driving shaft extends out of the corresponding locking block, the driving shaft movably penetrates through the corresponding locking block and then is connected to the corresponding clamping plate at the other end of the corresponding locking block, the elastic component is sleeved between the corresponding clamping plate and the corresponding locking block, and one end of the corresponding elastic component is connected to the corresponding clamping plate while the other end of the corresponding elastic component is connected to the corresponding locking block.

The locking seat is provided with a plurality of locking notches, and two ends of the locking block extend out of the locking notches; the controller controls each driver to independently drive and drive the locking block to rotate in the locking notch so as to enable the locking block to be separated from or meshed with the resistance assembly.

The beneficial effects of the invention are as follows: the invention has high flexibility and applicability, uses the spring with small volume, light weight and high energy density as the source of pull rope resistance, realizes the adjustment of pull rope resistance by the locking control of the locking unit, enables the pull rope extending outwards to flexibly change angles and directions by the ingenious design of the universal pulley, meets the pull rope movement in all directions, has compact integral structure, small volume and high energy density, can be independently used as a pull rope movement device, can be matched and installed on various existing body-building equipment to provide body-building resistance, replaces the traditional counterweight mode of taking a metal block as a counterweight, and can realize digital control.

Drawings

FIG. 1 is a schematic view of the overall construction of the pull-cord resistor of the present invention with increased flexibility and applicability;

FIG. 2 is an exploded schematic view of the overall construction of the pull-cord resistor of the present invention with increased flexibility and applicability;

FIG. 3 is a schematic view of the main body frame structure of the pull rope resistor with high flexibility and applicability;

FIG. 4 is a schematic view of an exploded view of the body frame of the pull-cord resistor of the present invention with increased flexibility and applicability;

FIG. 5 is a schematic view of the structure of the spool and spool in the pull-cord resistor of the present invention with increased flexibility and applicability;

FIG. 6 is a schematic view of the structure of the pull string resistor of the present invention with high flexibility and applicability when the rotor is mounted to the main body frame;

FIG. 7 is a schematic view of the internal structure of the resistance unit of the pull-cord resistor with high flexibility and applicability in accordance with the present invention;

FIG. 8 is a schematic diagram of an exploded construction of a resistance unit in a pull-cord resistor of the present invention with increased flexibility and applicability;

FIG. 9 is a schematic view of the internal structure of the pull rope resistor of the present invention with high flexibility and applicability when the resistance unit is mounted on the rotating shaft;

FIG. 10 is a schematic view of the general structure of the pull-cord resistor of the present invention with high flexibility and applicability when the resistance unit is mounted on the rotating shaft;

FIG. 11 is a schematic view of an exploded view of the present invention with a relatively flexible and adaptable pull cord resistor wherein the resistance unit is mounted on the rotating shaft;

FIG. 12 is a schematic view of the structure of the locking unit of the pull rope resistor with high flexibility and applicability when installed on the locking seat;

FIG. 13 is another side view of the schematic structural view of the locking unit of the pull-cord resistor of the present invention with increased flexibility and applicability when installed in the locking seat;

FIG. 14 is a schematic view of the overall structure of the locking unit of the pull-cord resistor of the present invention with increased flexibility and applicability;

fig. 15 is a schematic view of the explosive structure of the locking unit in the pull-cord resistor with high flexibility and applicability.

FIG. 16 is a schematic view of another locking unit of the pull-cord resistor of the present invention with increased flexibility and applicability;

FIG. 17 is a state diagram of a schematic structural view of another locking unit in the pull-cord resistor of the present invention with increased flexibility and applicability;

FIG. 18 is a schematic view of the overall structure of the locking unit of the pull-cord resistor of the present invention in a locked state with increased flexibility and applicability;

FIG. 19 is a detailed schematic view of the locking unit of the pull-cord resistor of the present invention in a locked state in combination with the resistance unit;

FIG. 20 is a schematic view of the overall structure of the pull-cord resistor of the present invention with the locking unit unlocked;

FIG. 21 is a detailed schematic view of the locking unit of the pull-cord resistor of the present invention shown in greater flexibility and applicability in combination with the resistor unit when the locking unit is unlocked;

FIG. 22 is a side view of the general configuration of the universal pulley in the pull-cord resistor of the present invention with increased flexibility and applicability;

FIG. 23 is a perspective view of the general structure of the universal pulley in the pull cord resistor of the present invention with increased flexibility and applicability;

FIG. 24 is a schematic view of an exploded view of a universal pulley in the pull cord resistor of the present invention with increased flexibility and applicability;

FIG. 25 is a schematic diagram of the reversing of a pull cord in a pull cord resistor of the present invention with increased flexibility and applicability;

FIG. 26 is a schematic diagram of the explosive structure of the pull string resistor of the present invention with its relatively high flexibility and applicability, with its resistance unit matching with a flange bearing and a planar thrust bearing.

In the figure: 1. an apparatus frame 101. End plates 102. Side plates; 2. a rotating shaft 201, a key slot; 3. wire reel, pull rope, resistance unit, storage box, spring, cover plate, protrusion, tooth and tooth respectively, wherein the wire reel, pull rope, resistance unit, storage box, spring and cover plate are respectively arranged in sequence, and the protrusion and tooth are respectively arranged in sequence; 6. a locking seat 601 locks the notch; 7. the device comprises a locking unit 701, a driver 7011, a driving shaft 702, a locking block 703, an elastic part 704, a clamping plate 705 and an elliptical wheel; 8. the steering device comprises a steering pulley block, 801, a mounting seat, 802, a steering pulley, 9, a universal pulley block, 901, a rotating component, 902, a base, 903, a pulley body, 904, a guide rod, 9041, a circular ring component, 905 and a limiting rod; 10. bearing, 11, reinforcing plate, 12, flange bearing, 13, plane thrust bearing, 14, controller.

Detailed Description

The rope pulling resistor with high flexibility and applicability according to the present invention will be described in further detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 and 2, the pull rope resistor with high flexibility and applicability of the invention comprises a device frame body 1 and a rotating shaft 2 rotatably arranged in the device frame body 1, wherein a wire spool 3 is fixed at one end of the rotating shaft 2, and a pull rope 4 is wound on the wire spool 3;

the resistance assembly is internally provided with a plurality of resistance units 5 coaxially sleeved on the rotating shaft 2, the side surface of each resistance unit 5 is provided with a locking seat 6, the locking seat 6 is provided with a locking assembly, the locking assembly comprises a plurality of locking units 7, and the locking units 7 correspond to the resistance units 5 and perform locking control on the resistance units 5;

the pulley assembly comprises a reversing pulley block 8 and a universal pulley block 9, and the pull rope 4 extends outwards through the pulley assembly. Specifically:

referring to fig. 3 to 6, the device frame 1 includes end panels 101 disposed at two ends and side panels 102 disposed at two sides, wherein the two end panels 101 and the two side panels 102 are sequentially connected to form a frame structure, and the locking seat 6 is fixedly connected between the two end panels 101, so that the whole frame structure is more stable.

In embodiment 1, a wire spool 3 is disposed at one end of a rotating shaft 2, a pull rope 4 is wound on the wire spool 3, a bearing 10 is disposed on an end panel 101, the rotating shaft 2 is rotatably disposed between two end panels 101 through the bearing 10, the rotating shaft 2 can freely rotate around its axis, in this embodiment, the rotating shafts 2 are disposed on the upper and lower sides of two side panels 102, and correspondingly, two sets of resistance components and bearings 10 are also disposed.

In embodiment 2, referring to fig. 7 to 9, a resistance unit 5 includes a storage box 501 and a spring 502, in this embodiment, the storage box 501 is further provided with a cover plate 503 in a matching manner, the spring 502 is disposed in the storage box 501, the cover plate 503 is covered to form the resistance unit 5, the storage box 501, the spring 502 and the cover plate 503 are coaxially sleeved on a rotating shaft 2, a key slot 201 is disposed on the rotating shaft 2, an inner ring end portion of the spring 502 is embedded in the key slot 201 and connected with the rotating shaft 2, an outer ring end portion of the spring 502 is in a hook shape, and is connected or clamped with a protrusion 504 on an inner wall of the storage box 501, and a plurality of engaging teeth 505 are uniformly disposed on an outer ring circumference of the storage box 501.

Referring to fig. 10 and 11, the plurality of resistance units 5 are sequentially sleeved on the rotating shaft 2 in a parallel manner, but the plurality of resistance units 5 act independently and do not interfere with each other.

Referring to fig. 12 to 15, a plurality of locking units 7 are installed on the locking seat 6, the locking units 7 include a driver 701, a locking block 702 and an elastic component 703, the locking block 702 is rotationally sleeved on a driving shaft 7011 of the driver 701, the end of the driving shaft 7011 is set to be in a non-circular structure, a clamping plate 704 is cooperatively sleeved, the clamping plate 704 rotates along with the driving shaft 7011, the clamping plate 704 is detachable, one end of the elastic component 703 is inserted into a reserved hole of the clamping plate 704 to be connected with the clamping plate 704, and the other end is inserted into a reserved hole of the locking block 702 to be connected with the locking block 702.

In embodiment 3, in this embodiment, the driver 701 adopts a micro motor, the elastic component 703 adopts a torsion spring, one end of the torsion spring is connected with the locking block 702, the other end of the torsion spring is connected with the clamping plate 704, when the driving shaft 7011 of the micro motor rotates clockwise or anticlockwise, the clamping plate 704 is driven to rotate together, the clamping plate 704 rotates to drive the torsion spring to twist, and the torsion force is transmitted to the locking block 702, so that the locking block 702 is driven to rotate, and finally, the locking block 702 is meshed with and separated from the meshing teeth 505 of the outer ring of the storage box 501.

The locking seat 6 is provided with a locking notch 601 matched with the locking block 702, the locking block 702 can rotate around the driving shaft 7011 in the locking notch 601, the locking notch 601 limits the rotation range of the locking block 702, the rotation angle of the locking block 702 is limited to a certain extent, and the locking block 702 can be meshed with and separated from the meshing teeth 505 of the outer ring of the storage box 501 effectively.

Embodiment 4, in this embodiment, elastic member 703 is used as the conduction of the force between actuator 701 and lock block 702, instead of actuator 701 directly driving lock block 702 to rotate, the obvious benefits are: when the locking block 702 rotates to the limit position of the locking notch 601 and cannot continue to rotate, the driver 701 can still continue to rotate by a certain angle due to the buffer action of the elastic component 703, and if the driver 701 directly drives the locking block 702 to rotate, a relatively accurate control of the rotation angle of the driver 701 is required, as an embodiment, a position sensor or an angle sensor can be added, so as to avoid the problems that the driver 701 generates heat and damages when the locking block 702 stops rotating, or the locking block 702 cannot effectively lock the storage box 501 due to insufficient rotation angle; by the buffering action of the elastic component 703, the rotation angle range of the driver 701 can be properly enlarged, so that the control of the driver 701 is simplified, the locking block 702 can be ensured to reach the guiding position, and finally, the locking block 702 can be effectively engaged with and separated from the storage box 501.

The above driver 701 adopts a micro motor, the elastic component 703 adopts a torsion spring, and is not limited to the disclosure, and other drivers or driving modes that can directly or indirectly drive the movement of the locking block 702 in the prior art may also be adopted in the practical implementation process, for example: referring to fig. 16 and 17, the locking block 702 is two separated ends, the two ends are connected by a spring, an elliptical wheel 705 is disposed on a driving shaft 7011 of the driver 701, the locking block 702 is disposed on one side of the circumference of the elliptical wheel 705, the elliptical wheel 705 is located between the two ends of the locking block 702, when the driving shaft 7011 rotates, the elliptical wheel 705 is driven to rotate, and the length difference between the major axis and the minor axis of the elliptical wheel 705 is utilized to drive the locking block 702 to extend and retract, so as to finally realize engagement and separation of the locking block 702 and the engagement teeth 505 of the outer ring of the storage box 501.

The resistance adjustment principle of the pull rope resistor with higher flexibility and applicability of the invention is as follows:

referring to fig. 18 and 19, when the controller 14 controls the driver 701 to rotate clockwise, the clamping plate 704 is driven to rotate clockwise together, the elastic member 703 is driven to twist when the clamping plate 704 rotates, the torsion is transmitted to the locking block 702, and the locking block 702 is driven to rotate clockwise, under the limit action of the locking notch 601 of the locking seat 6, the locking block 702 is in a relatively vertical state, at this time, the locking block 702 is meshed with the teeth 505 of the outer ring of the storage box 501, so as to limit the rotation of the storage box 501, because the outer ring end of the spring 502 is connected with the protrusion 504 of the inner wall of the storage box 501, and the inner ring end is connected with the key slot 201 of the rotation shaft 2, when the pull rope 4 is pulled by an external force, the pull rope 4 drives the rotation shaft 2 to rotate, and further drives the spring 502 to deform in a rolling way, and in this process, the spring 502 applies a reverse torsion to the rotation shaft 2 to resist the pulling force of the pull rope 4;

referring to fig. 20 and 21, when the controller 14 controls the driver 701 to rotate counterclockwise, the clamping plate 704 is driven to rotate counterclockwise together, the elastic component 703 is driven to twist when the clamping plate 704 rotates, and the torsion is transmitted to the locking block 702, so that the locking block 702 is driven to rotate counterclockwise, the locking block 702 is in a relatively inclined state under the limit action of the locking notch 601 of the locking seat 6, at this time, the locking block 702 is separated from the tooth 505 of the outer ring of the storage box 501, the storage box 501 can rotate freely, because the outer ring end of the spring 502 is connected with the protrusion 504 of the inner wall of the storage box 501, the inner ring end is connected with the keyway 201 of the rotation shaft 2, when the pull rope 4 is pulled by an external force, the rotation shaft 2 is driven to rotate, the torsion formed by the spring 502 is transmitted to the storage box 501, and the spring 502 is driven to rotate, namely, the spring 502 will not shrink and deform, namely will not apply reverse torsion to the rotation shaft 2, namely will not resist the pull rope 4;

therefore, the controller 14 only needs to control the rotation direction of the driver 701 and further control the stop position of the lock block 702, so as to control whether the spiral spring 502 is deformed to generate reverse resistance, and finally, the resistance is adjusted. Note that the controller 14 controls each of the lock units 7 independently by controlling each of the drivers 701 independently, thereby controlling the resistance unit 5 corresponding to each of the lock units 7 independently.

Referring to fig. 22 to 24, the universal pulley block 9 includes a rotating member 901, a base 902, a pulley body 903 and a guide rod 904, wherein the base 902 is fixedly connected with an inner ring of the rotating member 901, the pulley body 903 is rotatably disposed on the base 902, the pulley body 903 adopts a U-shaped pulley, meanwhile, the guide rod 904 is further disposed, one end of the guide rod 904 is rotatably connected with the base 902, the other end of the guide rod 904 is disposed with a ring member 9041, and the base 902 is further disposed with a limit rod 905 for limiting a rotation range of the guide rod 904, so that the guide rod 904 is biased to one side of the pulley body 903; in this embodiment, the rotary member 901 in the universal pulley block 9 adopts a bearing structure, and the base 902 is fixedly connected with an inner ring of the bearing structure.

Referring to fig. 1, 2 and 25, a reversing pulley block 8 is further disposed at one end close to the wire spool 3, the reversing pulley block 8 includes a mounting seat 801 and a reversing pulley 802, the mounting seat 801 is close to the end plate 101 and is connected between the two side panels 102, the reversing pulley 802 is rotatably mounted on the mounting seat 801, the reversing pulley 802 adopts a U-shaped pulley, a U-shaped groove of the U-shaped pulley is aligned with the center of the wire spool 3, the direction of the pull rope 4 is changed through the reversing pulley 802, a through hole is formed at one end, close to the wire spool 3, of the side panel 102, and the universal pulley block 9 is fixedly connected with the through hole through the outer ring of the rotating part 901 of the universal pulley block. In this embodiment, a reinforcing plate 11 is further added, the reinforcing plate 11 is fixedly connected with the side panel 102 and the end panel 101, through holes are also formed in the reinforcing plate 11 and concentric with the through holes of the side panel 102, and the outer ring of the rotating part 901 is also fixedly connected to the through holes of the reinforcing plate 11, so that the stress degree of the whole device can be improved through the reinforcement of the reinforcing plate 11;

referring to fig. 25, the pull rope 4 passes through the inner ring of the rotating component 901 after being changed by the reversing pulley 802, and passes through the ring member 9041 after being changed by the pulley body 903, so that the pull rope 4 can always keep correct contact with the pulley body 903 under the limiting action of the guide rod 904, and finally, the pull rope 4 cannot be separated from the pulley body 903 in the steering process of any direction, the situation that the pull rope 4 is worn or blocked after slipping in the using process is avoided, and the user experience is further improved.

Referring to fig. 26, in order to reduce friction between the resistance units 5 and the rotation shaft 2, to ensure smooth rotation of the resistance units 5, flange bearings 12 are provided between the storage boxes 501 of the resistance units 5 and the rotation shaft 2, and between the cover plates 503 and the rotation shaft 2, respectively, while in order to reduce friction between the resistance units 5, planar thrust bearings 13 are provided between the resistance units 5.

Referring to fig. 1, the pull rope resistor with higher flexibility and applicability of the invention further comprises a controller 14, wherein the controller 14 is electrically connected with the locking unit 7 to realize control of the locking unit 7.

In summary, the pull rope resistor with high flexibility and applicability fully utilizes the characteristics of small volume, light weight, high energy density and the like of the clockwork spring, and combines the design of the universal pulley, so that the pull rope resistor has the advantages of compact integral structure, light weight and high energy density, can flexibly change angles and directions when pulling exercises, meets the pull rope movement in all directions, can be designed into independent pull rope movement equipment, can be installed on various existing body-building equipment to provide body-building resistance, and can digitally control the resistance.

The rope pulling resistor with higher flexibility and applicability can be used for improving and expanding various body-building equipment, so that the body-building equipment has smaller volume, lighter weight and richer and more convenient functions, meets the increasingly richer body-building requirements of people, is convenient to install and carry, and has better applicability and practical significance.

Claims (8)

1. The pull rope resistor with high flexibility and applicability is characterized by comprising a device frame body (1), wherein the device frame body (1) comprises two end plates (101) which are oppositely arranged, the two end plates (101) are connected through a side plate (102), a rotating shaft (2) is arranged between the two end plates (101), a resistance component is arranged on the rotating shaft (2), a wire spool (3) is further fixed at one end of the rotating shaft (2), and a pull rope (4) is wound on the wire spool (3); a locking seat (6) is arranged between the two side panels (102), a locking component is arranged on the locking seat (6), a controller (14) is further arranged on the end panel (101) corresponding to the locking component, and the controller (14) controls the locking component so as to control the resistance component.

2. The high flexibility and applicability pull-cord resistor of claim 1, further comprising a pulley assembly comprising a reversing pulley block (8) and a universal pulley block (9).

3. The rope pulling resistor with high flexibility and applicability according to claim 2, characterized in that the reversing pulley block (8) comprises a mounting seat (801) and a reversing pulley (802), the mounting seat (801) is connected between the two side panels (102) close to the end panel (101), and the reversing pulley (802) is arranged on the mounting seat (801).

4. The pull rope resistor with higher flexibility and applicability according to claim 2, wherein the universal pulley block (9) comprises a rotating part (901) connected to the side panel (102), a base (902) is arranged on the rotating part (901), a pulley body (903) is arranged in the base (902), a guide rod (904) is rotatably arranged on the base (902), a circular ring member (9041) is arranged at one end, far away from the base (902), of the guide rod (904), and a limit rod (905) is arranged on the base (902) corresponding to the guide rod (904).

5. The pull rope resistor with higher flexibility and applicability according to claim 1, characterized in that the resistance assembly comprises a plurality of resistance units (5), each resistance unit (5) comprises a storage box (501) and a spring (502) arranged in the storage box, the storage box (501) is further provided with a cover plate (503), the storage box (501) and the spring (502) are coaxially arranged on a rotating shaft (2), a key groove (201) is formed in the outer side wall of the rotating shaft (2), an inner ring end part of the spring (502) is embedded in the key groove (201) and is connected with the rotating shaft (2), an outer ring end part of the spring (502) is connected with the inner wall of the storage box (501), and a plurality of meshing teeth (505) are arranged on the outer ring of the storage box (501) along the circumferential interval of the spring.

6. Pull rope resistor with high flexibility and applicability according to claim 5, characterized in that the two ends of each resistance unit (5) are provided with flange bearings (12) in positions corresponding to the rotation shafts (2), the rotation shafts (2) being provided with planar thrust bearings (13) between every two resistance units (5).

7. The pull rope resistor with higher flexibility and applicability according to claim 1, wherein the locking assembly comprises a plurality of locking units (7), each locking unit (7) is configured on the locking seat (6), the locking unit (7) comprises a driver (701) and a driving shaft (7011) extending out of the driver, a locking block (702), an elastic component (703) and a clamping plate (704), the driving shaft (7011) is movably penetrated through the locking block (702) and then is connected with the clamping plate (704) at the other end of the driving shaft, an elastic component (703) is sleeved between the clamping plate (704) and the locking block (702), and one end of the elastic component (703) is connected with the clamping plate (704) while the other end is connected with the locking block (702).

8. The pull rope resistor with higher flexibility and applicability according to claim 7, wherein a plurality of locking notch (601) are formed on the locking seat (6), and two ends of the locking block (702) extend out of the locking notch (601); the controller (14) controls each driver (701) to independently drive and rotate the locking block (702) in the locking notch (601) so as to enable the locking block (702) to be disengaged or meshed with the resistance assembly.