Power cord storage device and treadmill

Abstract

The utility model discloses a power line storage device and treadmill, be provided with first elastic component and self -locking subassembly between reel and shell, and first elastic component provides the elastic force of inward rotation for reel, and self -locking subassembly includes the step subassembly of setting in one of reel and shell, the dial wheel subassembly on the other, and dial wheel subassembly includes dial wheel, second elastic component and third elastic component, and the first end of dial wheel can be dialled the first end of dial wheel away from the one end of first step to second step, makes dial wheel be in the locked state, when dial wheel is in the locked state, the first end of dial wheel can be dialled the first end of dial wheel away from the one end of first step to second step, makes the second end of dial wheel remove and second elastic component abut, to make dial wheel be in the unlocked state, and realize the position locking of reel under the limitation of second step, when dial wheel is in the unlocked state, the first end of dial wheel can be dialled and rotates away from step subassembly, realizes the retraction of reel, the utility model discloses can realize the locking and automatic storage of power line.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment, and in particular to a power cord storage device and a treadmill. Background Technology

[0002] Larger household appliances like treadmills often require folding functionality for easy storage when not in use, due to their frequency of use, duration of use, and floor space requirements. To meet this need, many folding devices have emerged on the market, such as foldable treadmills. While foldable treadmills exist, as electrical appliances, they require a power cord. Even with folding capabilities, the exposed power cord still poses a challenge for storage, especially when dragging the folded treadmill, creating a safety hazard. Utility Model Content

[0003] The purpose of this utility model is to provide a power cord storage device to solve the problem that exposed power cords on treadmills cause inconvenience in storage, as is the case in the prior art. The specific technical solution is as follows:

[0004] A power cord storage device includes a housing and a reel rotatably connected inside the housing. The power cord is connected to the reel and can rotate inward with the reel to screw into the housing, or rotate outward with the reel to screw out of the housing. A first elastic component and a self-locking component are disposed between the reel and the housing. The first elastic component provides an elastic force for the reel to rotate inward. The self-locking component includes a step component disposed on one of the reel and the housing, and a dial component disposed on the other. The step component includes a first step and a second step arranged from high to low. The dial component includes a rotatable dial and two oppositely disposed on both sides of the dial. The second and third elastic components; the end of the first step away from the second step can move the first end of the dial wheel, causing the second end of the dial wheel to abut against the second elastic component, thus locking the dial wheel; when the dial wheel is locked, the end of the first step near the second step can move the first end of the dial wheel, causing the second end of the dial wheel to release from abutment against the second elastic component, thus unlocking the dial wheel and locking the position of the reel under the constraint of the second step; when the dial wheel is unlocked, the end of the first step near the second step can move the first end of the dial wheel away from the step component to rotate, thus automatically retracting the reel.

[0005] Furthermore, the first end of the dial is provided with a first pointed corner and the second end is provided with a second pointed corner. The second elastic component includes a first spring and a second spring connected at a preset first included angle. The second pointed corner and the first included angle can abut against each other. The end of the first spring away from the first included angle is fixedly provided. The end of the second spring away from the first included angle extends in a direction away from the second pointed corner. The dial moves along the descending direction of the step component. The first step moves the first pointed corner to rotate, causing the second pointed corner to overcome the elastic force of the first spring and cross the first included angle to abut against the second spring.

[0006] Furthermore, the end of the first reed closest to the first included angle is tilted toward the second pointed angle.

[0007] Furthermore, the dial includes a rotating connecting part, which is an arc-shaped structure. The first sharp corner is a triangular structure that is smoothly connected to the arc-shaped structure of the rotating connecting part. The second sharp corner is smoothly connected to the side of the rotating connecting part opposite to the first spring, and the side of the rotating connecting part opposite to the second spring maintains a preset included angle with the arc-shaped structure of the rotating connecting part.

[0008] Furthermore, the third elastic component includes a third spring disposed on the opposite side of the first spring, one end of the third spring being fixedly disposed and the other end extending toward the first sharp corner, so that the end of the third spring can abut against the side wall of the first sharp corner away from the second sharp corner, so as to provide elastic force to the first sharp corner in the unlocking direction when the second sharp corner abuts against the second spring.

[0009] Furthermore, the third elastic component also includes a fourth spring connected to the third spring. The third spring is inclined toward the first sharp corner, and the fourth spring extends away from the first sharp corner, so that when the end of the third spring can abut against the wall of the first sharp corner away from the second sharp corner, the fourth spring abuts against the side wall of the first sharp corner.

[0010] Furthermore, the dial assembly also includes a fixedly mounted spring bracket, which is a recessed structure that extends away from the step assembly. A fifth spring is connected between the first and third springs. The fifth spring is fixedly mounted at the bottom end of the recessed structure of the spring bracket, so that the first and third springs are fixedly mounted by the fifth spring. The first spring and the third spring are close to each other on the side away from the fixed end to form a wrapping recess, so as to wrap the dial from the side away from the step assembly.

[0011] Furthermore, the step assembly comprises multiple components, which are spaced apart along the circumferential direction.

[0012] Furthermore, the stepped structure is located inside the outer casing, while the dial assembly is located outside the winding reel.

[0013] Another aspect of this utility model provides a treadmill, including the power cord storage device described above. The treadmill includes a front running platform and a rear running platform, and the power cord storage device is disposed at the end of the front running platform or the rear running platform so that the power cord plug of the power cord storage device extends from the end of the front running platform or the rear running platform.

[0014] The power cord storage device of this utility model has the following advantages:

[0015] 1. By reasonably setting the positions of the step assembly, the dial wheel, the second elastic assembly, and the third elastic assembly, the reel can be automatically locked when rotating outwards, and will not lock when rotating inwards. This achieves both fixing the reel during use and automatic retraction during storage.

[0016] 2. Under the combined action of the step assembly and the first included angle, the dial will produce a mechanical force sound when it is locked, and the vibration and resistance of the power cord can be felt, reminding the user that the dial is locked. At this time, releasing the power cord can achieve stable locking of the reel, making it convenient for the user and avoiding too many misoperations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the treadmill after it has been unfolded.

[0018] Figure 2 This is a diagram showing the location of the power cord storage device inside the treadmill.

[0019] Figure 3 This is a schematic diagram of a power cord storage device.

[0020] Figure 4 This is an exploded view of a power cord storage device.

[0021] Figure 5 This is a schematic diagram showing the position of the coil spring.

[0022] Figure 6 This is a schematic diagram of the self-locking component of a power cord storage device.

[0023] Figure 7 This is a schematic diagram of the dial in the locked state.

[0024] Figure 8 This is a schematic diagram of the self-locking component in the locked state.

[0025] Figure 9 This is a schematic diagram of the self-locking component during the unlocking process.

[0026] Figure 10 This is a schematic diagram of the self-locking component in the unlocked state. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0028] like Figures 1-2 As shown, this embodiment of the utility model provides a folding treadmill including a front running platform 101 and a rear running platform 102. The rear running platform 102 can be folded upwards and fastened above the front running platform 101, realizing the folding of the treadmill. A power cord storage device 103 is disposed at the end of the front running platform 101 or the rear running platform 102, so that the power cord plug of the power cord storage device 103 extends from the end of the front running platform 101 or the rear running platform 102. In use, the power cord 7 is pulled out by dragging the power cord plug and plugged into a suitable position. When storing the treadmill, the power cord 7 can be automatically stored in the power cord storage device 103, making the overall appearance of the treadmill neater and easier to drag. At the same time, the power cord storage device 103 being located at the end of the front running platform 101 or the rear running platform 102 facilitates the plugging of the power cord 7 and makes it easier to arrange the treadmill reasonably during use. In addition, the power cord storage device 103 is located at the bottom of the treadmill, which can hide the power cord plug at the bottom of the treadmill, improving the overall aesthetics of the treadmill whether it is in use or in storage.

[0029] like Figures 3-10 As shown, the power cord storage device 103 provided in this embodiment of the present invention includes a housing 4 and a reel rotatably connected inside the housing 4. The power cord 7 is connected to the reel and can rotate inward with the reel to screw into the housing 4, or rotate outward with the reel to screw out of the housing 4.

[0030] Specifically, such as Figure 4 As shown in the embodiment of this utility model, the outer shell 4 is composed of an upper outer cover 41 at the top and an outer lower outer cover 42 at the bottom, which are fastened together. The outer shell 4 is preferably circular, and a channel leading to the interior of the outer shell 4 is reserved on one side. The power cord 7 extends to the outside of the outer shell 4 and connects to the power cord plug. The power cord storage device 103 provided by this utility model has a modular structure and can be installed as a whole inside the treadmill, which facilitates the overall layout of the power cord storage device 103 and the internal electrical structure of the treadmill.

[0031] Furthermore, the winding reel includes an upper cover 51 and a lower cover 53 that are interlocked with each other. The power cord 7 is connected to the reel. When the power cord 7 is pulled outward, the reel rotates outward first, and the power cord 7 is pulled out. A first elastic component is provided between the reel and the outer casing 4. The first elastic component can provide an inward rotational force for the reel, so that the reel automatically rotates inward without being locked. The power cord 7 is screwed into the outer casing 4 along with the reel to complete the storage of the power cord 7.

[0032] Furthermore, both the upper cover 51 and the lower cover 53 of the winding reel have a circular hollow structure in the middle area. Three sets of electrical connection components are arranged in the center area of ​​the lower outer cover 42. Each electrical connection component includes a metal coil 54 and a sliding contact 55 slidably connected to the metal coil 54. One wire of the power cord 7 is connected to the sliding contact 55. The metal coil 54 is connected to the power connection wire of the corresponding electrode in the power bus on the treadmill, thus realizing the electrical connection between the power cord and the internal electrical equipment of the treadmill for uninterrupted power supply. Correspondingly, the three sets of electrical connection components are the positive terminal, negative terminal, and ground wire, respectively. During connection, it is necessary to ensure that the electrodes of the power cord 7 correspond to the electrodes of the treadmill equipment to ensure safe use of the treadmill.

[0033] Furthermore, in a specific embodiment of this utility model, the first elastic component is a coil spring 6, which is disposed in the central area of ​​the upper cover 51 of the winding reel. The central area of ​​the outer upper cover 41 is provided with a first connecting groove (not shown in the drawings). The starting end of the coil spring 6 at its center is engaged in the first connecting groove, that is, the center of the coil spring 6 is inserted into the first connecting groove, fixing the center of the coil spring 6 to the center of the outer upper cover 41. The edge of the hollow structure in the center of the upper cover 51 of the winding reel is provided with a second connecting groove 52. The end of the coil spring 6 is engaged in the second connecting groove 52, that is, the end of the coil spring 6 is fixed to the winding reel. When the winding reel rotates outward, the coil spring 6 provides elastic force to resist the outward rotation. When the winding reel stops rotating and there is no external force locking the winding reel, the winding reel will automatically rotate inward under the force of the coil spring 6, realizing the automatic retraction of the power cord 7.

[0034] Furthermore, this embodiment of the invention also includes a self-locking component to lock the power cord 7 in a specific position during use, facilitating normal operation of the treadmill. Specifically, the self-locking component provided in this embodiment includes a step component 1 disposed on one of the cable reel and the outer casing 4, and a dial component disposed on the other. The self-locking component is disposed in the space between the cable reel and the outer casing 4 for relative rotation. During the rotation of the cable reel, relative movement can occur between the step component 1 and the dial component, achieving self-locking between the step component 1 and the dial component. Therefore, regardless of where the step component 1 is disposed in the cable reel and the outer casing 4, as long as the dial component is disposed on the other side, relative movement between the step component 1 and the dial component is possible. For ease of description, this invention will describe the self-locking component of the invention in detail by placing the step component 1 on the outer casing 4 and the dial component on the cable reel.

[0035] Furthermore, the step assembly 1 includes a first step 11 and a second step 12 arranged from high to low. It should be noted that when the dial assembly moves in the descending direction along the step assembly 1, it is in the direction of outward rotation of the winding reel. The dial assembly includes a rotatable dial 2, which is rotatably connected to a fixed dial shaft 23, allowing the dial 2 to rotate around the shaft 23. The dial shaft 23 is located between the second elastic component 3 and the third elastic component 8, which are arranged opposite each other on both sides of the dial 2. The second elastic component 3 can abut against the second end of the dial 2, and the third elastic component 8 can abut against the first end of the dial 2. The first step 11 can abut against the first end of the dial 2, and the end of the first step 11 away from the second step 12 can be turned. The first end of wheel 2 causes the second end of wheel 2 to abut against the second elastic component 3, thus locking wheel 2. When wheel 2 is locked, the end of the first step 1 near the second step 2 can move the first end of wheel 2, causing the second end of wheel 2 to release from abutment against the second elastic component 3, thus unlocking wheel 2 and locking the position of the reel under the constraint of the second step 12. When wheel 2 is unlocked, the end of the first step 11 near the second step 12 can move the first end of wheel 2 away from the step component 1, thus automatically retracting the reel.

[0036] Specifically, when the reel rotates outward, it first contacts the end of the first step 11 away from the second step 12. The dial wheel 2, under the action of the first step 11, causes its second end to abut against the second elastic component 3. At this time, the third elastic component 8 abuts against the first end of the dial wheel 2. Since the second elastic component 3 and the third elastic component 8 apply opposite forces to the dial wheel 2, the dial wheel achieves position locking (e.g., ...). Figure 7 (As shown). When the power cord is released, the dial 2 rotates inward with the reel and collides with the end of the first step 11 near the second step 2. Under the force of the collision, the end of the first step 11 near the second step 2 moves the dial 2 to release it from contact with the second elastic component 3. However, at this time, due to the limiting effect of the second step 12, the dial 2 is locked at the junction of the first step 11 and the second step 12 (as shown). Figure 8 (As shown). When the power cord is pulled outward again, after the dial 2 passes the second step 12, because the top of the first end of the dial 2 is released from its limit, the first end of the dial 2 rotates towards the second elastic component 3 under the action of the third elastic component 8 (as shown). Figure 9 (As shown). At this time, after the power cord is pulled out, when the dial 2 comes into contact with the first step 11 again, the first step 11 will cause the first end of the dial 2 to rotate away from the step assembly 1, that is, the first end of the dial 2 will rotate towards the second elastic assembly 3. At this time, since the dial 2 is no longer subjected to the contact force, the winding reel can automatically retract.

[0037] It should be noted that, because the relative motion directions of the dial wheel 2 and the step assembly 1 are different when the cable reel rotates outward and inward, the position of the dial wheel 2 when the cable reel rotates inward is as follows: Figure 10 As shown, at this time, the second end of the dial 2 will not abut against the second elastic component 3, so the reel will not lock when the rotating disk rotates inward. By reasonably setting the positions of the step component 1, the dial 2, and the second elastic component 3, this utility model can achieve automatic locking of the reel when it rotates outward, and prevent the reel from locking itself when it rotates inward. At the same time, it can achieve the fixing of the reel during use and automatic retraction during storage.

[0038] Figures 5-9 The following is a detailed embodiment of the self-locking component of this utility model. The first end of the dial 2 is provided with a first pointed corner 21 and the second end is provided with a second pointed corner 22. The second elastic component 3 includes a first spring 31 and a second spring 32 connected at a preset first included angle. The second pointed corner 22 abuts against the first included angle. The end of the first spring 31 away from the first included angle is fixedly disposed, and the end close to the first included angle extends toward the second pointed corner 22, so that the first spring 31 can provide the second pointed corner 22 with a spring force to prevent rotation to the second spring 32. The end of the second spring 32 away from the first included angle extends away from the second pointed corner 22. When the winding spool rotates outward, the step component 1 moves the first pointed corner 21 to rotate, causing the second pointed corner 22 to overcome the spring force of the first spring 31, cross the first included angle and abut against the second spring 32, and the second spring 32 provides the second pointed corner 22 with a spring force to prevent rotation to the first spring 31. In a preferred embodiment of the present invention, the end of the first spring 31 away from the first included angle is fixedly disposed, and the end close to the first included angle is inclined toward the second pointed angle 22. This arrangement can enhance the elastic force of the first spring 31 and the second spring 32 acting on the second pointed angle 22.

[0039] Furthermore, when the reel rotates outward, the dial assembly passes through the step assembly 1 clockwise from left to right. Before passing through the step assembly 1, the second pointed corner 22 is located inside the first spring 31 and abuts against the end of the first spring 31. When interacting with the step assembly 1, the step assembly 1 causes the first pointed corner 21 of the dial 2 to rotate counterclockwise. Since the free end of the first spring 31 is inclined towards the second pointed corner 22, the first spring 31 and the second spring 32 as a whole can spring away from the dial 2. At this time, the second pointed corner 22 rotates upward to overcome the elastic force of the first spring 31 and rotates to the other side of the first included angle to abut against the second spring 32. At this time, the dial 2 achieves the following... Figure 7The position is locked, so as long as the dial 2 passes through the first step 11, the position of the dial 2 can be guaranteed to be locked. Due to the combined action of the first step 11 and the second elastic component 3, when the dial passes through the first step 11, it will emit a prompt sound to remind the user to trigger the position locking state of the dial. At this time, releasing the hand will lock the cable reel, which is convenient for the user. When the power cord is pulled again, as long as the locking prompt sound is not heard (the first step 11 is not passed again), the cable reel will automatically retract when it is released.

[0040] Furthermore, in a preferred embodiment of the present invention, the dial 2 includes a rotating connecting part, which is an arc-shaped structure. The first sharp corner 21 is a triangular structure that is smoothly connected to the arc-shaped structure of the rotating connecting part. That is, the angle between the first sharp corner 21 and the arc-shaped structure at the connection position is close to 180 degrees. The transition sequence between the two is such that the first sharp corner is a symmetrical triangular structure.

[0041] The side of the second pointed corner 22 opposite to the first spring 31 is smoothly connected to the arc-shaped structure of the rotating connection part. That is, the included angle at the arc connection position of the side of the second pointed corner 22 opposite to the first spring 31 and the rotating connection part is close to 180 degrees. The side of the second pointed corner 22 opposite to the second spring 32 and the arc-shaped structure of the rotating connection part maintains a preset included angle. That is, an included angle is formed at the arc connection position of the side of the second pointed corner 22 opposite to the second spring 32 and the rotating connection part. This arrangement makes it easier for the second pointed corner to cross the first included angle and abut against the second spring 32, and more difficult for it to cross the first included angle and abut against the first spring 31, thereby improving the stability of the locking.

[0042] Furthermore, to facilitate locking and unlocking of the dial, this embodiment of the invention also includes a third elastic component 8. The third elastic component 8 includes a third spring 33 disposed on the opposite side of the first spring 31. One end of the third spring 33 is fixedly disposed, and the other end is disposed towards the first pointed corner 21, so that the end of the third spring 33 can abut against the side wall of the first pointed corner 21 away from the second pointed corner 22, thereby providing elastic force to the first pointed corner 21 in the unlocking direction when the second pointed corner 22 abuts against the second spring 32. Figure 7 As shown, while the second spring 32 provides a counterclockwise rotational force to the dial, the third spring 33 provides a clockwise rotational force to the first pointed corner 21, allowing the dial 2 to achieve balance at the contact position. When the power cord 7 is released, the reel will quickly retract under the action of the first elastic component, and the first pointed corner 21 will collide with the side of the first step 11 closest to the second step 12. At the same time, the third spring 33 applies a pressure force to the first pointed corner 21, which allows the second pointed corner 22 to pass over the second spring 22 and return to the unlocked state.

[0043] In a preferred embodiment of this invention, the third spring 33 and the second step 12 work together to unlock the dial 2. In this preferred embodiment, the first sharp angle 21 is larger than the second sharp angle 22, making the cooperation between the first sharp angle 21 and the step assembly 1 smoother. Correspondingly, the length of the third spring 33 is greater than the length of the first spring 31, and the tilt angle of the third spring 33 is smaller than the tilt angle of the first spring 31. This means that the third spring 33 cannot easily overcome the elastic force of the first included angle to unlock the dial. Unlocking is only completed when the dial 2 rotates past the first step 11 and impacts it, further improving the stability during locking.

[0044] like Figure 10 As shown, when the reel rotates inward, the second pointed corner 22 has moved away from the second spring 32. Therefore, even if it passes the step assembly 1 again, it will not actuate the dial wheel 2 to make it contact the second spring 32, thus enabling unobstructed winding of the reel. This invention, by rationally setting the positions of the second elastic component 3, the dial wheel 2, and the step assembly 1, not only locks the reel when it rotates outward, but also avoids obstructing the dial wheel 2 when it rotates inward, achieving automatic extension and retraction of the power cord 7, thus facilitating user operation.

[0045] Furthermore, to better exert force on the first sharp corner 21 and ensure the reliability of the unlocking action, in this embodiment of the invention, the third elastic component 8 also includes a fourth spring 34 connected to the third spring 33. The third spring 33 is inclined towards the first sharp corner, and the fourth spring 34 extends away from the first sharp corner 21, so that when the end of the third spring 33 abuts against the wall of the first sharp corner 21 away from the second sharp corner 22, the fourth spring 34 fits against the side wall of the first sharp corner 21. Because the fourth spring 34 can abut against the side wall of the first sharp corner 21, the force exerted by the end of the third spring 33 on the side wall of the first sharp corner 21 is increased, thereby making the force on the first sharp corner 21 more uniform and improving the reliability of the unlocking action.

[0046] Furthermore, in this embodiment of the present invention, the dial assembly further includes a fixedly disposed spring bracket 36. The spring bracket 36 is a recessed structure that is recessed away from the step assembly 1. A fifth spring 35 is connected between the first spring 31 and the third spring 33. The fifth spring 35 is fixedly disposed at the bottom end of the recessed structure of the spring bracket 36, so that the first spring 31 and the third spring 33 are fixedly disposed by the fifth spring 35. The sides of the first spring 31 away from the fixed end and the sides of the third spring 33 away from the fixed end approach each other to form a wrapping recess, so as to wrap the dial 2 from the side away from the step assembly 1. The first spring 31 and the third spring 33 are fixedly connected by the fifth spring 35. By fixing the fifth spring 35 to the bottom end of the spring bracket 36, the first spring 31 and the third spring 33 can be fixed. At the same time, the two sides of the recessed structure of the spring bracket 36 can also limit the position of the first spring 31 and the third spring 33, preventing the first spring 31 and the third spring 33 from failing due to excessive rotation angle, and further improving the stability of the device.

[0047] Furthermore, the step assembly 1 in this embodiment includes at least two step structures, and when the reel rotates outward, the step structure contacted by the derailleur 2 transitions from high to low. This invention features a multi-step step structure. During the outward rotation of the reel, the derailleur 2 first abuts against the highest step structure. The highest step structure then actuates the derailleur 2, providing sufficient rotation distance and force to the second pointed corner 2, allowing the derailleur to resist the elastic force of the first spring 31 and abut against the second spring 32. After falling from the highest step, since the derailleur 2 is still on the step assembly 1, the step assembly 1 restricts the rotation of the derailleur 2, making the locking of the self-locking assembly more stable. In a specific embodiment of this invention, when the derailleur 2 is in the locked state, the top end of the first end of the derailleur 2 is located between the top end of the first step 11 and the top end of the second step 12, so that the derailleur 3 can be actuated by the first step 11. When the dial 2 is perpendicular to the step assembly 2, the top of the first end of the dial 2 is located inside the top of the second step 12, so that when the winding reel is in the locked state, the second step 12 can limit the rotation of the dial 2, thereby limiting the position of the winding reel.

[0048] Furthermore, in this embodiment of the present invention, the step component 1 may include multiple components, which are distributed at intervals along the circumferential direction. This allows the winding reel to reach the locking state with a small rotation angle, making the pull-out length of the power cord 7 more flexible.

[0049] This utility model embodiment provides a power cord storage device 103 with the following advantages:

[0050] 1. By reasonably setting the positions of the step assembly, the dial wheel, and the second elastic assembly, the reel can be automatically locked when rotating outwards, and will not lock when rotating inwards. This achieves both fixing the reel during use and automatic retraction during storage.

[0051] 2. Under the combined action of the step assembly and the first included angle, the dial will produce a mechanical force sound when it is locked, and the vibration and resistance of the power cord can be felt, reminding the user that the dial is locked. At this time, releasing the power cord can achieve stable locking of the reel, making it convenient for the user and avoiding too many misoperations.

[0052] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made to the above embodiments by those skilled in the art after reading this specification are all within the scope of protection of the present invention. The various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

[0053] If the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

Claims

1. A power cord storage device, comprising a housing and a reel rotatably connected inside the housing, wherein the power cord is connected to the reel and can rotate inward with the reel to screw into the housing, or rotate outward with the reel to screw out of the housing, characterized in that, A first elastic component and a self-locking component are disposed between the reel and the housing. The first elastic component provides an inward rotational force for the reel. The self-locking component includes a step component disposed on one of the reel and the housing, and a dial component disposed on the other. The step component includes a first step and a second step arranged from high to low. The dial component includes a rotatable dial and a second elastic component and a third elastic component disposed opposite to each other on both sides of the dial. The end of the first step away from the second step can move the first end of the dial, causing the second end of the dial to abut against the second elastic component, thus locking the dial. When the dial is locked, the end of the first step near the second step can move the first end of the dial, causing the second end of the dial to release from abutment against the second elastic component, thus unlocking the dial and locking the position of the reel under the constraint of the second step. When the dial is unlocked, the end of the first step near the second step can move the first end of the dial away from the step component, thus automatically retracting the reel.

2. The power cord storage device of claim 1, wherein The first end of the dial is provided with a first sharp angle and the second end is provided with a second sharp angle. The second elastic component includes a first spring and a second spring connected at a preset first included angle. The second sharp angle and the first included angle can abut against each other. The end of the first spring away from the first included angle is fixedly set. The end of the second spring away from the first included angle extends in a direction away from the second sharp angle. The dial moves along the descending direction of the step assembly. The first step moves the first sharp angle to rotate, causing the second sharp angle to overcome the elastic force of the first spring and cross the first included angle to abut against the second spring.

3. The power cord storage device of claim 2, wherein The end of the first reed closest to the first included angle is tilted toward the second pointed angle.

4. The power cord storage device according to claim 2 or 3, wherein The dial includes a rotating connecting part, which has an arc-shaped structure. The first sharp corner is a triangular structure that is smoothly connected to the arc-shaped structure of the rotating connecting part. The second sharp corner is smoothly connected to the side of the rotating connecting part opposite to the first spring. The side of the rotating connecting part opposite to the second spring maintains a preset included angle with the arc-shaped structure of the rotating connecting part.

5. The power cord storage device of claim 2, wherein The third elastic component includes a third spring disposed on the opposite side of the first spring, one end of the third spring being fixedly disposed and the other end extending toward the first sharp corner, so that the end of the third spring can abut against the side wall of the first sharp corner away from the second sharp corner, so as to provide elastic force to the first sharp corner in the unlocking direction when the second sharp corner abuts against the second spring.

6. The power cord storage device of claim 5, wherein The third elastic component also includes a fourth spring connected to the third spring. The third spring is inclined toward the first sharp corner, and the fourth spring extends away from the first sharp corner, so that when the end of the third spring can abut against the wall of the first sharp corner away from the second sharp corner, the fourth spring abuts against the side wall of the first sharp corner.

7. The power cord storage device of claim 5, wherein The dial assembly also includes a fixedly mounted spring bracket, which is a recessed structure that extends away from the step assembly. A fifth spring is connected between the first and third springs. The fifth spring is fixedly mounted at the bottom of the recessed structure of the spring bracket, so that the first and third springs are fixedly mounted by the fifth spring. The first spring and the third spring are close to each other on the side away from the fixed end to form a wrapping recess, so as to wrap the dial from the side away from the step assembly.

8. The power cord storage device of claim 1, wherein, The step assembly comprises multiple components, which are spaced apart along the circumferential direction.

9. The power cord storage device of claim 1, wherein, The stepped structure is located inside the outer casing, while the dial assembly is located outside the winding reel.

10. A treadmill characterized by, The treadmill includes a power cord storage device as described in any one of claims 1-9, and includes a front running platform and a rear running platform. The power cord storage device is disposed at the end of the front running platform or the rear running platform so that the power cord plug of the power cord storage device extends from the end of the front running platform or the rear running platform.

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