Training device with self-locking function

Abstract

The training device with the self-locking function comprises a training device body, a resistance mechanism and a pull rope assembly, the resistance mechanism comprises a motor, a hoisting mechanism and a self-locking driving mechanism, the hoisting mechanism comprises a winding drum for winding and flange baffles located at the outer end of the winding drum, and at least one flange baffle is provided with a first locking matching unit; the self-locking driving mechanism comprises a driving unit and a second locking matching unit, and the driving unit is used for driving the second locking matching unit to be connected with or separated from the first locking matching unit, so that the rotation of the hoisting mechanism is locked and unlocked; therefore, when the fitness personnel need to leave temporarily or the fitness equipment needs to be shut down sometimes, the resistance mechanism can be actively locked to prevent the fitness equipment from being touched by children to cause safety risks.

Description

Technical Field

[0001] This invention relates to the field of fitness equipment technology, and in particular to a training device with a self-locking function, which effectively provides users with safety protection in the event of a power outage so as not to cause injury. Background Technology

[0002] Existing fitness equipment, such as stretching machines, typically requires a mechanism to provide resistance, usually consisting of elastic components, weights, or resistance wheels. In recent years, motors have also emerged as resistance mechanisms in fitness equipment. When using traditional weighted equipment for fast strength training, the resistance at the weight end tends to increase dramatically as the movement speed increases; however, using a motor as the resistance mechanism avoids this problem, maintaining a consistent resistance. Research shows that fast strength training not only improves absolute strength but also explosive power, which translates to faster starting speed and quicker reaction time, giving athletes an advantage in training and competition.

[0003] However, when using a resistance motor as the resistance mechanism, the resistance mechanism needs to be locked when the user needs to leave temporarily or turn off the equipment to prevent children from touching it and causing safety risks. Furthermore, the resistance mechanism also needs to be locked during transportation to prevent damage from continuous vibrations. Additionally, if the equipment experiences a sudden power outage or circuit failure, the resistance motor will fail due to the sudden power loss, causing the user to accelerate suddenly due to inertia, creating a safety hazard. Therefore, manufacturing fitness equipment with a self-locking function, higher integration, and smaller footprint has been a long-standing pursuit in the industry. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a trainer with a self-locking function.

[0005] This invention is implemented using the following scheme:

[0006] This invention proposes a trainer with a self-locking function, comprising:

[0007] The main body of the trainer;

[0008] A resistance mechanism, located within the main body of the trainer, is used to provide training resistance within the trainer.

[0009] A pull rope assembly, one end of which is connected to the resistance mechanism, and the other end of which is connected to a force-applying component;

[0010] The characteristic is that the resistance mechanism comprises:

[0011] An electric motor for providing resistance in a trainer, the electric motor including a stator assembly and a rotor assembly, the rotor assembly being rotatable relative to the stator assembly;

[0012] A winch mechanism is provided for winding the rope assembly. The winch mechanism is connected to the rotor assembly of the motor. The winch mechanism includes a winding drum and a flange baffle located at the outer end of the drum. At least one flange baffle is provided with a first locking engagement unit.

[0013] A self-locking drive mechanism is used to perform locking and unlocking operations on the rotation of the hoisting mechanism. The self-locking drive mechanism includes a drive unit and a second locking engagement unit. The drive unit is used to drive the second locking engagement unit to engage or disengage with the first locking engagement unit, thereby performing locking and unlocking operations on the rotation of the hoisting mechanism.

[0014] In one embodiment, the trainer further includes a pulley system, which is provided on the main body of the trainer. At least one pulley of the pulley system is located above the main body of the trainer in the height direction, and the resistance mechanism is located below the main body of the trainer in the height direction. The rope assembly is connected to the resistance mechanism at one end through the pulley system and to the force-applying member at the other end.

[0015] In one embodiment, the drum and the flange baffle form a winding space, the self-locking drive mechanism is arranged within the span of the winding space, and the self-locking drive mechanism is approximately within the axial projection range of the hoisting mechanism.

[0016] In one embodiment, the trainer further includes two support arms, with two support arms respectively provided on the left and right sides of the trainer body. The left and right directions of the trainer body are defined as the width direction of the trainer body. The resistance mechanism further includes a housing, with the motor arranged in the housing. The axial direction of the motor is parallel to the length direction of the housing, and the length direction of the resistance mechanism is aligned with the width direction of the trainer body.

[0017] In one embodiment, the resistance mechanism further includes a housing, in which the motor, the hoisting mechanism, and the self-locking drive mechanism are all installed. The housing has a wire outlet hole, and a guide mechanism, including a guide roller, is provided between the wire outlet hole and the drum.

[0018] In one embodiment, the first locking engagement unit and the second locking engagement unit are a set of pins and pin holes that can lock into each other.

[0019] In one embodiment, the first locking engagement unit is a brake pin hole arranged circumferentially around the rotation center of the flange baffle, and the second locking engagement unit is a brake pin. The drive unit includes a mounting bracket, an elastic element, and an electromagnet assembly. The brake pin is slidably mounted on the mounting bracket and can slide and engage with the brake pin hole. One end of the elastic element is connected to the mounting bracket, and the other end is connected to the brake pin, thereby applying a spring force to the brake pin in the direction of the flange baffle. The electromagnet assembly acts on the brake pin and applies an electromagnetic force to the brake pin in the direction away from the flange baffle, the electromagnetic force being greater than the spring force.

[0020] In one embodiment, a proximity switch is also provided at the other end of the mounting bracket. When the brake pin retracts and separates from the brake pin hole, the tail of the brake pin can actuate the proximity switch.

[0021] In one embodiment, the resistance mechanism further includes a controller, and the motor and the self-locking drive mechanism are electrically connected to the controller; the self-locking drive mechanism receives a control signal from the controller to perform locking and unlocking operations on the rotation of the hoisting mechanism.

[0022] In one embodiment, when the fitness equipment is set to at least one of the following states, the controller sends a control signal to lock the rotation of the hoisting mechanism: a temporarily abandoned state, a powered-off state, or a transport state; and / or

[0023] The self-locking drive mechanism locks the rotation of the hoisting mechanism when the power is off.

[0024] In one embodiment, the drum is connected to one side of the rotor assembly of the motor, and the flange baffle is provided on the side of the drum away from the motor.

[0025] In one embodiment, the resistance mechanism further includes a housing and a human-machine interface device. The motor, hoisting mechanism, and self-locking drive mechanism are all installed inside the housing. The human-machine interface device is disposed on the housing for adjusting and displaying the operating parameters of the resistance mechanism.

[0026] The technical solution provided by this invention has the following technical effects:

[0027] 1. The training device with a self-locking function of the present invention includes a resistance mechanism comprising a self-locking drive mechanism for locking and unlocking the rotation of a winch mechanism. The winch mechanism includes a winding drum and a flange baffle located at the outer end of the drum, with at least one first locking engagement unit provided on the flange baffle. The self-locking drive mechanism includes a drive unit and a second locking engagement unit. The drive unit drives the second locking engagement unit to engage or disengage with the first locking engagement unit, thereby performing locking and unlocking operations on the rotation of the winch mechanism. Thus, when a user needs to temporarily leave or needs to turn off the fitness equipment, they can actively lock the resistance mechanism to prevent children from touching the equipment and causing safety risks. Furthermore, during transportation, the resistance mechanism of the fitness equipment can also be actively locked to prevent damage to the resistance mechanism caused by continuous vibration during transportation.

[0028] 2. The self-locking drive mechanism is located within the span of the winding space, thus utilizing the winding space to arrange the self-locking drive mechanism. This results in a smaller overall size of the resistance mechanism with self-locking function, which is beneficial for maximizing space utilization and miniaturizing the fitness equipment. The resistance mechanism also includes a housing, in which a motor is arranged. The axis of the motor is parallel to the length direction of the housing, and the length direction of the resistance mechanism is aligned with the length direction of the main body of the trainer, making the main body of the trainer smaller and occupying less space overall.

[0029] 3. The self-locking trainer of the present invention has an elastic element that applies a spring force towards the flange baffle to the brake pin, and an electromagnet assembly that applies an electromagnetic force away from the flange baffle to the brake pin. The electromagnetic force is greater than the spring force. Therefore, when the fitness equipment is powered normally, the electromagnet assembly is energized and generates an electromagnetic force that overcomes the spring force, causing the brake pin to retract and separate from the brake pin hole of the flange baffle. When the fitness equipment suddenly loses power, the electromagnet assembly loses power and does not generate an electromagnetic force. Under the spring force, the brake pin moves towards the flange baffle, causing it to engage in the brake pin hole due to the spring force. This brakes the moving rotor assembly and hoisting mechanism, preventing the fitness equipment from losing resistance and posing a safety risk due to sudden power failure. Attached Figure Description

[0030] Figure 1 It is a 3D diagram of the trainer;

[0031] Figure 2 It is a 3D image of the trainer with part of its outer shell hidden;

[0032] Figure 3 It is a 3D diagram of the resistance mechanism;

[0033] Figure 4 It is a 3D view of the resistance mechanism with part of the housing removed;

[0034] Figure 5 It is a 3D view of the motor, hoisting mechanism, guiding mechanism, and self-locking drive mechanism;

[0035] Figure 6 It is an exploded view of the motor, hoisting mechanism, and self-locking drive mechanism;

[0036] Figure 7 This is a 3D view of the self-locking drive mechanism;

[0037] Figure 8 This is a three-dimensional view of the self-locking drive mechanism from another perspective;

[0038] Figure 9 This is a perspective view of the rope component passing through the guide mechanism in this embodiment;

[0039] Figure 10 This is a perspective view of the resistance mechanism according to another embodiment;

[0040] Figure 11 This is a perspective view of the resistance mechanism applied to a multifunctional trainer in another embodiment;

[0041] Figure 12 This is a perspective view of the resistance mechanism applied to a multifunctional trainer in another embodiment. Detailed Implementation

[0042] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention, primarily used to illustrate the embodiments and to explain the operating principles of the embodiments in conjunction with the relevant descriptions in the specification. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0043] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0044] like Figure 1-9As shown, this embodiment provides a trainer with a self-locking function, including a trainer body 3, a base 2, a resistance mechanism 1, support arms 4, a handle 5, a pull rope assembly 6, a display screen 7, and a pulley system 8. The trainer body 3 is mounted on the base 2. The resistance mechanism 1 is located inside the trainer body 3. One end of the pull rope assembly 6 is connected to the resistance mechanism 1, and the other end is connected to a force-applying component, such as the handle 5. The resistance mechanism 1 is connected to the handle 5 through the pull rope assembly 6 to provide training resistance in the trainer. The trainer body 3 has two support arms 4, and the angle of the support arms 4 relative to the trainer body 3 is adjustable. The support arms 4 are located above the height of the trainer body 3 and are hollow structures with openings at both ends. The pull rope assembly 6 includes one or more pull ropes. At least one pulley of the pulley system 8 is located above the height of the trainer body 3, and the resistance mechanism 1 is located below the height of the trainer body 3. The pull rope assembly 6 is wound around the pulley system 8 and passes through the support arms 4, thereby connecting to the handle 5 located at the end of the support arms 4. The rope assembly 6 is connected to the resistance mechanism 1 at one end via the pulley system 8, and to the force-applying component at the other end. The resistance mechanism 1 is located inside the lower part of the trainer body 3, and the space above it can be used as the travel space of the pulley system, which is reasonable and makes high space utilization. Depending on the user's height and training specialty, the support arm 4 can be adjusted up and down at multiple angles to meet the needs of different heights and various training types.

[0045] In other embodiments, the handle 5 can be replaced with various accessories, such as a Y-shaped training handle, a triceps training rope, a training belt, calf straps, thigh straps, and a lightweight barbell, to achieve seamless integration of various specialized training programs and enable direct training of specific movements on the equipment.

[0046] Reference Figure 1-2 In this embodiment, the end of the support arm 4 is equipped with a pulley system, which allows the pull rope to rotate according to the direction of the user's force, maintaining training comfort while adapting to complex movements and changes in force. This design also protects the equipment and the pull rope, extending their service life.

[0047] The display screen 7 is located on the main body 3 of the trainer. The display screen 7 has multiple display areas that can display various data such as resistance, repetitions, power, and maximum explosive force. The display screen 7 may include a processing chip, which is easy to use and can record previous data and settings, and save each exercise record. This allows users to download data without complicated operations, facilitating future analysis and research.

[0048] Reference Figure 3-9The resistance mechanism 1 includes a housing 10, a motor 20, a self-locking drive mechanism 30, a controller 40, a hoisting mechanism 50, and a guide mechanism 60. The motor 20 is used to provide resistance in fitness equipment, such as as a resistance source for a stretching trainer. The controller 40 is electrically connected to the motor 20 and is used to control the magnitude or direction of the resistance provided by the motor 20.

[0049] The motor 20, self-locking drive mechanism 30, and controller 40 are mounted inside the housing 10. The housing 10 has heat dissipation holes 12 and a cooling fan 13 is fixedly installed to enhance heat dissipation for the motor 20, self-locking drive mechanism 30, and controller 40. The motor 20 includes a stator assembly 21 and a rotor assembly 22. The stator assembly 21 is fixedly mounted to the housing 10. The rotor assembly 22 is rotatable relative to the stator assembly 21.

[0050] Reference Figure 2-4 The outer shell 301 of the main body 3 of the trainer is provided with two sets of external heat dissipation holes 302 in opposite directions along the heat dissipation airflow direction of the cooling fan 13, thereby enhancing the heat dissipation of the resistance mechanism 1.

[0051] The winch mechanism 50 is used to wind the rope at the force application end. The winch mechanism 50 is connected to the rotor assembly 22 of the motor 20. The winch mechanism 50 includes a winding drum 51 and a flange baffle 52 located at the outer end of the drum. The drum 51 and the flange baffle 52 form a winding space. At least one flange baffle 52 is provided with a first locking engagement unit 521.

[0052] The winch mechanism 50 is connected to the rotor assembly 22 via a transmission connection. This connection can be direct or via a speed-changing assembly. The winch mechanism 50 rotates together with the rotor assembly 22. The winch mechanism 50 is used to wind the rope at the force-applying end of the fitness equipment, thereby providing resistance to the equipment. Figure 3 As shown, a cable outlet hole 11 is provided on the top of the housing 10 for the cable to pass through. Preferably, the motor 20 is a servo motor, which allows for more precise adjustment and control of the resistance.

[0053] like Figure 3-6 As shown, a flange baffle 52 is provided on one side of the drum 51. In some embodiments, flange baffles 52 may also be provided on both sides of the drum 51. The flange baffle 52 can act as a baffle to facilitate the winding of the tension rope on the drum 51, and can cooperate with the self-locking drive mechanism 30 to act as a locking element when the equipment needs to be locked.

[0054] The self-locking drive mechanism 30 is used to perform locking and unlocking operations on the rotation of the hoisting mechanism 50. The self-locking drive mechanism 30 includes a drive unit 31 and a second locking engagement unit 32. The drive unit 31 is used to drive the second locking engagement unit 32 to engage or disengage with the first locking engagement unit 521, thereby performing locking and unlocking operations on the rotation of the hoisting mechanism 50.

[0055] The first locking unit 521 and the second locking unit 32 are a set of pins and pin holes that can lock together. In this embodiment, the first locking unit 521 is a brake pin hole 521 arranged around the circumferential direction of the rotation center of the flange baffle 52, and the second locking unit 32 is a brake pin 32.

[0056] In some other embodiments, the self-locking drive mechanism 30 can cooperate with the rotor assembly 22 of the motor 20 to lock, thereby locking the resistance mechanism 1. However, the rotor assembly 22 of the motor 20 typically has high torque and high speed, making it difficult to lock. In this embodiment, the self-locking drive mechanism 30 cooperates with the flange baffle 52 of the hoisting mechanism 50 to achieve locking, generating a large locking torque, making it easier and more direct to lock and stop the hoisting mechanism 50, resulting in higher safety.

[0057] The drum 51 and the flange baffle 52 form a winding space, and the self-locking drive mechanism 30 is arranged within the span of the winding space, that is, within the span formed by the drum 51 and the flange baffle 52.

[0058] In some other embodiments, the self-locking drive mechanism 30 can be located outside the flange baffle 52 of the hoisting mechanism 50, i.e., outside the winding space. However, since the drum 51 is connected to one side of the rotor assembly 22 of the motor 20, there is a problem that the overall length of the motor 20 is too long. If the self-locking drive mechanism 30 is located outside the flange baffle 52 of the hoisting mechanism 50, the overall length of the motor 20 in the axial direction will be further increased, resulting in a further increase in the product's external dimensions. Therefore, in this embodiment, the self-locking drive mechanism 30 is arranged within the span of the winding space. Since the drum 51 has a relatively long length, the rope cannot be fully wound around the drum 51. The outer ring of the drum 51 has remaining winding space, which can be fully utilized to arrange the self-locking drive mechanism 30, thereby reducing the overall size of the product and achieving product miniaturization.

[0059] Reference Figure 2-3 The housing 10 has a cuboid structure, and the motor 20 is arranged in the housing 10. The axis of the motor 20 is parallel to the length direction of the housing 10, so as to make full use of the space of the housing 10.

[0060] Reference Figure 1-2 Two support arms 4 are respectively located on the left and right sides of the main body 3 of the trainer, and the left and right sides of the main body 3 are defined as the width direction of the main body 3. The resistance mechanism 1 is located inside the main body 3 of the trainer, and the length direction of the resistance mechanism 1 is aligned with the width direction of the main body 3 of the trainer, which makes the main body 3 of the trainer smaller in size and occupies less space overall.

[0061] In this embodiment, as Figure 5 As shown, the self-locking drive mechanism 30 is roughly within the axial projection range of the hoisting mechanism 50 or the rotor assembly 22, thereby making full use of the remaining winding space and improving the miniaturization of the product.

[0062] Furthermore, the self-locking drive mechanism 30 is located on the side opposite to the cable exit direction relative to the drum 51. In this embodiment, the cable exit direction is upward, and the self-locking drive mechanism 30 is located below the drum 51, thereby making full use of the remaining winding space without interfering with the normal cable exit.

[0063] Reference Figure 4-5 A guide mechanism 60 is provided between the outlet hole 11 and the drum 51, and the guide mechanism 60 includes a guide roller 61. Figure 4 , 9 As shown, the rope passes over the guide roller 61 and then exits the housing 10 through the outlet hole 11. The guiding mechanism 60 guides the rope on the drum 51 as it exits the housing 10, ensuring that the rope is accurately aligned with the outlet hole 11 and preventing it from scraping against the housing 10 and causing wear that could affect its service life.

[0064] like Figure 7-8As shown, the drive unit 31 includes a mounting bracket 312, a spring 311, and an electromagnet assembly 313. The mounting bracket 312 is fixedly mounted on the housing 10. The electromagnet assembly 313 is electrically connected to the controller 40. The brake pin 32 is slidably mounted on the mounting bracket 312, and the brake pin 32 can slide out of one end of the mounting bracket 312 and engage with the brake pin hole 521. One end of the spring 311 is connected to the mounting bracket 312, and the other end is connected to the brake pin 32, thereby applying a spring force F1 towards the flange baffle 52 to the brake pin 32. The electromagnet assembly 313 acts on the brake pin 32 and applies an electromagnetic force F2 away from the flange baffle 52 to the brake pin 32. The electromagnetic force F2 is greater than the spring force F1, so when the fitness equipment is powered normally, the electromagnet assembly 313 is energized and generates an electromagnetic force F2 that can overcome the spring force F1, causing the brake pin 32 to retract and separate from the brake pin hole 521 of the flange baffle 52. When the fitness equipment suddenly loses power, the electromagnet assembly 313 loses power and does not generate electromagnetic force. Under the action of the spring force F1 of the spring 311, the brake pin 32 moves towards the flange baffle 52, causing the brake pin 32 to be engaged in the brake pin hole 521 due to the spring force F1. This brakes the moving rotor assembly 22 and drum 51, preventing the fitness equipment from losing resistance and causing safety risks due to sudden power failure. In other words, the self-locking drive mechanism 30 performs a locking operation on the rotation of the hoisting mechanism 50 when the power is off.

[0065] In other embodiments, the spring 311 may also be other elastic elements, such as an elastic tube.

[0066] In this embodiment, the self-locking drive mechanism 30 is electrically connected to the controller 40. Upon receiving a control signal from the controller 40, the self-locking drive mechanism 30 can also perform locking and unlocking operations on the rotation of the hoisting mechanism 50. When the fitness equipment is set to at least one of the following states, the controller 40 sends a control signal to lock the rotation of the hoisting mechanism: temporary departure state, power-off state, or transport state. Thus, when a user needs to temporarily leave or needs to turn off the fitness equipment, they can actively lock the resistance mechanism to prevent children from touching the equipment and causing safety risks. Furthermore, during transport, the resistance mechanism of the fitness equipment can also be actively locked to prevent damage to the resistance mechanism caused by continuous vibration during transport.

[0067] Reference Figure 10In other embodiments, the resistance mechanism 1' further includes a human-machine interface device 70, which is disposed on the housing 10 for adjusting and displaying the operating parameters of the resistance mechanism 1'. Specifically, the human-machine interface device 70 is a rotary knob display assembly 70, electrically connected to the controller 40. The rotary knob display assembly 70 includes a rotary knob and a display device on the front of the rotary knob. The rotary knob can be used to adjust various operating parameters of the resistance mechanism 1, such as resistance, number of repetitions, and power. The display device on the front of the rotary knob, such as an electronic watch, can display multiple data such as resistance, number of repetitions, power, and maximum explosive force. Of course, referring to… Figure 3 The resistance mechanism 1 may not have a shuttle knob display component 70; instead, control and display can be achieved through the overall control and display device of the fitness equipment itself.

[0068] In other embodiments, the self-locking drive mechanism 30 can be a friction clutch mechanism or a magnetic clutch mechanism. That is, the braking and stopping operation of the hoisting mechanism 50 by the self-locking drive mechanism 30 is achieved through the friction clutch mechanism or the magnetic clutch mechanism.

[0069] Reference Figure 3-6 In this embodiment, the drum 51 is connected to one side of the rotor assembly 22 of the motor 20. A flange baffle 52 is provided on the side of the drum 51 away from the motor 20, so that the brake pin hole 521 can be closer to the rotation center and arranged along the circumference of the flange baffle 52. The self-locking drive mechanism 30 cooperates with the brake pin hole 521, so that the overall product size is more compact and the space utilization rate is higher.

[0070] Of course, in some embodiments, the housing 10 may be omitted, and the motor 20, self-locking drive mechanism 30, controller 40 and hoisting mechanism 50 may be directly integrated into the fitness equipment, which is also a feasible technical solution.

[0071] Reference Figure 6-8 A proximity switch 35 is also provided at the other end of the mounting bracket 312. The proximity switch 35 can be a photoelectric switch, etc. When the brake pin 32 retracts and separates from the brake pin hole 521, the tail 321 of the brake pin 32 extends out of the mounting bracket 312 and actuates the proximity switch 35 to generate an electrical signal. The proximity switch 35 is connected to the controller 40. The controller 40 only controls the motor 20 to start after receiving the electrical signal generated by the proximity switch 35. This prevents the motor 20 from starting when the brake pin 32 is stuck in the brake pin hole 521, which could cause damage to the equipment and related safety risks.

[0072] Furthermore, although the above embodiments are illustrated using a vertical training device as an example, this resistance mechanism, due to its self-locking function, can also be used as a resistance mechanism in other types of training devices. For example, see... Figure 11 It illustrates a multi-functional training device 100, including a resistance mechanism 1', a rope assembly 6', a pulley system 8', and multiple different types of force-applying components 5'. The resistance mechanism 1' is connected to the different types of force-applying components 5' via the rope assembly 6' and different pulley systems 8', thereby providing resistance to the user when performing different training movements; for example, see reference Figure 12 It shows another multi-functional trainer 200, including a resistance mechanism 1', a rope assembly 6", a pulley system 8", and multiple different types of force-applying components 5" (such as handles, straight bars, curved bars, bench press handles, etc.). The resistance mechanism 1' is connected to different types of force-applying components 5" through the rope assembly 6" and different pulley systems 8", thereby providing resistance to the user when performing different training movements. This design effectively provides safety protection for the user in the event of a power outage so as not to cause injury.

[0073] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A trainer with a self-locking function, comprising: The main body of the trainer; A resistance mechanism, located within the main body of the trainer, is used to provide training resistance within the trainer. A pull rope assembly, one end of which is connected to the resistance mechanism, and the other end of which is connected to a force-applying component; The characteristic is that the resistance mechanism comprises: An electric motor for providing resistance in a trainer, the electric motor including a stator assembly and a rotor assembly, the rotor assembly being rotatable relative to the stator assembly; A winch mechanism is provided for winding the rope assembly. The winch mechanism is connected to the rotor assembly of the motor. The winch mechanism includes a winding drum and a flange baffle located at the outer end of the drum. At least one flange baffle is provided with a first locking engagement unit. A self-locking drive mechanism is used to perform locking and unlocking operations on the rotation of the hoisting mechanism. The self-locking drive mechanism includes a drive unit and a second locking engagement unit. The drive unit is used to drive the second locking engagement unit to engage or disengage with the first locking engagement unit, thereby performing locking and unlocking operations on the rotation of the hoisting mechanism.

2. The trainer with self-locking function according to claim 1, characterized in that: The trainer also includes a pulley system, which is provided on the main body of the trainer. At least one pulley of the pulley system is located above the main body of the trainer in the height direction. The resistance mechanism is located below the main body of the trainer in the height direction. The rope assembly is connected to the resistance mechanism at one end through the pulley system and to the force-applying component at the other end.

3. The trainer with self-locking function according to claim 1, characterized in that: The drum and the flange baffle form a winding space, and the self-locking drive mechanism is arranged within the span of the winding space, and the self-locking drive mechanism is approximately within the axial projection range of the hoisting mechanism.

4. The trainer with self-locking function according to claim 3, characterized in that: The trainer also includes two support arms, with two support arms respectively provided on the left and right sides of the trainer body. The left and right sides of the trainer body are defined as the width direction of the trainer body. The resistance mechanism also includes a housing, with the motor arranged in the housing. The axis of the motor is parallel to the length direction of the housing, and the length direction of the resistance mechanism is aligned with the width direction of the trainer body.

5. The trainer with self-locking function according to claim 3, characterized in that: The resistance mechanism also includes a housing, in which the motor, the hoisting mechanism and the self-locking drive mechanism are all installed. The housing is provided with a wire outlet hole, and a guide mechanism is provided between the wire outlet hole and the drum. The guide mechanism includes a guide roller.

6. The trainer with self-locking function according to claim 1, characterized in that: The first locking engagement unit and the second locking engagement unit are a set of pins and pin holes that can lock into each other.

7. The trainer with self-locking function according to claim 6, characterized in that: The first locking engagement unit is a brake pin hole arranged circumferentially around the rotation center of the flange baffle, and the second locking engagement unit is a brake pin. The drive unit includes a mounting bracket, an elastic element, and an electromagnet assembly. The brake pin is slidably mounted on the mounting bracket and can slide and engage with the brake pin hole. One end of the elastic element is connected to the mounting bracket, and the other end is connected to the brake pin, thereby applying a spring force toward the flange baffle to the brake pin. The electromagnet assembly acts on the brake pin and applies an electromagnetic force away from the flange baffle to the brake pin, and the electromagnetic force is greater than the spring force.

8. The trainer with self-locking function according to claim 7, characterized in that: A proximity switch is also provided at the other end of the mounting bracket. When the brake pin retracts and separates from the brake pin hole, the tail of the brake pin can actuate the proximity switch.

9. The trainer with self-locking function according to claim 1, characterized in that: The resistance mechanism also includes a controller, and the motor and the self-locking drive mechanism are electrically connected to the controller; the self-locking drive mechanism receives the control signal from the controller to perform locking and unlocking operations on the rotation of the hoisting mechanism.

10. The trainer with self-locking function according to claim 9, characterized in that: The controller issues a control signal to lock the rotation of the hoisting mechanism when the trainer is set to at least one of the following states: temporary departure state, power-off state, or transport state; and / or The self-locking drive mechanism locks the rotation of the hoisting mechanism when the power is off.

11. The trainer with self-locking function according to claim 1, characterized in that: The drum is connected to one side of the rotor assembly of the motor, and the flange baffle is provided on the side of the drum away from the motor.

12. The trainer with self-locking function according to claim 1, characterized in that: The resistance mechanism also includes a housing and a human-machine interface device. The motor, hoisting mechanism and self-locking drive mechanism are all installed in the housing. The human-machine interface device is located on the housing for adjusting and displaying the working parameters of the resistance mechanism.

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