Locking structure and treadmill

Abstract

The utility model discloses a locking structure and treadmill, locking structure is applied to the foldable fitness equipment, including draw bar, draw bar rotation is connected in the bottom plate inside of fitness equipment, and one end of draw bar is connected to draw pin subassembly, and draw pin subassembly can with the rotation of draw bar and extend or retract, and the other end of draw bar is connected with the handle, and the handle is made of flexible material, and the bottom plate is provided with first opening, and the handle can extend from the bottom plate inside to the bottom plate outside through first opening to drive the draw pin subassembly of bottom plate inside to extend or retract from the bottom plate outside by pulling the handle. The utility model can pull the flexible handle from the bottom plate outside and realize the unlocking of bottom plate inside, and the unlocking action is more convenient, and can use the handle to complete the dragging of the equipment of bottom plate, and is more in line with the use habit of user, and improves user experience.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment, and in particular to a locking structure and a treadmill. Background Technology

[0002] Larger household appliances such as 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. However, current technology typically uses rigid mechanisms like buttons or levers to lock and unlock the folding mechanism, resulting in a poor user experience. Furthermore, users must simultaneously operate the unlocking mechanism and lift or move the folding structure during the folding or unlocking process, making it extremely inconvenient. Utility Model Content

[0003] The purpose of this invention is to provide a locking structure to solve the problem of inconvenient operation of existing locking structures. The specific technical solution is as follows:

[0004] One aspect of this utility model provides a locking structure for use on foldable fitness equipment, including a pull rod rotatably connected to the inner side of the base plate of the fitness equipment. One end of the pull rod is connected to a pull pin assembly, which can extend or retract with the rotation of the pull rod. The other end of the pull rod is connected to a handle made of flexible material. A first opening is provided on the base plate, through which the handle extends from the inner side of the base plate to the outer side of the base plate. By pulling the handle from the outer side of the base plate, the pull pin assembly on the inner side of the base plate can be extended or retracted.

[0005] Furthermore, the locking structure also includes a first guide wheel assembly disposed in the first opening, and the handle extends from the inside of the base plate to the outside of the base plate through the first guide wheel assembly, with the handle slidingly abutting against the surface of the first guide wheel assembly.

[0006] Furthermore, the locking structure also includes a second guide wheel assembly disposed on the inner side of the base plate, and the side of the second guide wheel assembly is flush with the pull rod. The handle slides against the surface of the second guide wheel assembly so that the handle located between the second guide wheel assembly and the pull rod is parallel to the action plane of the pull rod.

[0007] Furthermore, the end of the handle away from the pull rod is fixedly connected to the base plate, so that the handle located on the outside of the base plate forms a ring structure.

[0008] Furthermore, the locking structure also includes a latch assembly disposed on the outside of the base plate. The end face of the latch assembly near the base plate is provided with a second opening so that the handle can pass through the second opening and enter the interior of the latch assembly. The end face of the latch assembly away from the base plate or the circumferential side of the latch is provided with a third opening so that the handle can extend to the outside of the latch assembly through the third opening.

[0009] Furthermore, a fixed shaft is provided inside the locking assembly, and the end of the handle away from the pull rod is connected to the fixed shaft so that the handle forms a ring structure outside the locking assembly.

[0010] Furthermore, the pull pin assembly includes a limiting bushing, a limiting shaft, and an elastic element disposed between the limiting shaft and the limiting bushing. The limiting bushing is fixedly connected to the base plate, and the limiting shaft is disposed inside the limiting bushing to limit the movement path of the limiting shaft through the limiting bushing. The elastic element abuts against the limiting shaft to provide elastic force for the limiting shaft to extend out of the limiting bushing.

[0011] Furthermore, the pull rod is provided with a strip groove, and one end of the limiting shaft is slidably connected to the strip groove of the pull rod so that when the pull rod rotates, one end of the limiting shaft pin slides in the strip groove.

[0012] Furthermore, the locking structure is located at the end of the base plate, the pull rod is arranged parallel to the end of the base plate, and the pull pin assembly and the handle are respectively arranged in a direction perpendicular to the end of the base plate. Pulling the handle can cause the pull pin assembly to extend or retract from the end of the base plate.

[0013] Another aspect of this utility model also provides a treadmill, which includes a first component and a second component that can be folded together. The first component is provided with a locking structure as described above, and the second component is provided with a locking groove, so that when the pull pin component of the locking structure is inserted into the locking groove, the first component and the second component are locked together.

[0014] Furthermore, a locking structure is disposed at the end of the base plate of the first component, and the second component includes a first part that can be folded with the first component and a second part that protrudes from the first part, with the end of the second part disposed opposite to the end of the first component.

[0015] The locking structure of this utility model allows the inside of the base plate to be unlocked by pulling the flexible handle from the outside of the base plate. The unlocking action is more convenient, and the handle can be used to drag the fitness equipment on which the base plate is located. It is also more in line with the user's usage habits and improves the user experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the treadmill after folding according to an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the unfolded structure of the treadmill according to an embodiment of the present invention.

[0018] Figure 3 This is a cross-sectional view of the treadmill after it has been folded according to an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the locking structure according to an embodiment of the present invention.

[0020] Figure 5 This is an exploded view of the locking structure according to an embodiment of the present invention.

[0021] Figure 6 This is a side view of the locking structure according to an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the unlocked state of the locking structure according to an embodiment of the present invention.

[0023] Figure 8 This is a schematic diagram of the locking state of the locking structure according to an embodiment of the present invention. Detailed Implementation

[0024] 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.

[0025] Figures 1-3 This illustration shows an application scenario of the locking structure provided by this utility model embodiment. The locking structure can be applied to a treadmill with a folding function. The treadmill has a first component A and a second component B that can be folded or unfolded together. When the first component A and the second component B are unfolded together, they can form the running platform of the treadmill. The first component A is provided with a locking structure, and the second component B is provided with a locking groove corresponding to the locking structure. When the first component A and the second component B are folded together, they can be connected to each other through the locking structure and the locking groove to realize the folding and locking of the treadmill, which facilitates the storage of the treadmill.

[0026] Specifically, as shown in the figure, in this embodiment of the invention, the locking structure is located at the end of the base plate of the first component A. After the treadmill is unfolded, the locking structure should also be located at the end of the first component A. At this time, the locking structure is located at the end of the first component A away from the second component B. The second component B includes a first component B1 that can be folded with the first component A and a second component B2 that protrudes from the first component B1. The end of the second component B2 is opposite to the end of the first component A. As shown in the figure, when the first component A and the second component B are folded together, the surface of the first component A is flush with the surface of the second component B2. At this time, the treadmill resembles a suitcase structure, with an aesthetically pleasing appearance and a small footprint, making it easy to drag. By setting the second component B2, this invention allows the space between the upper side plate of the second component B2 and the lower side plate of the first component B1 to accommodate the drive component, which can make more rational use of the overall space of the treadmill and make the treadmill body thinner and lighter.

[0027] It should be noted that the locking structure provided in this embodiment of the present invention can be applied not only to treadmills with folding functions, but also to other fitness equipment with folding functions that are adapted to the locking structure.

[0028] Figures 3-8 This invention illustrates a locking structure according to a specific embodiment of the present invention. The locking structure includes a pull rod 1, which is rotatably connected to the inner side of the base plate of the fitness equipment. In this specific embodiment, the middle part of the pull rod 1 is rotatably connected to the base plate via a pull rod pivot screw 13. One end of the pull rod 1 is connected to a pull pin assembly 3, which can extend or retract with the rotation of the pull rod 1. The other end of the pull rod 1 is connected to a handle 2, which is made of a flexible material. A first opening 26 is provided on the base plate, through which the handle 2 extends from the inner side of the base plate to the outer side. By pulling the handle 2 from the outer side of the base plate, the pull rod 1 can be rotated, thereby causing the pull pin assembly 3 to extend or retract.

[0029] Understandably, when the above locking structure is applied... Figures 1-2 When the treadmill is in use, the base plate is the outer side plate of the first component A. When the pull pin component 3 extends, it locks the first component A and the second component B. When the pull pin component 3 retracts, it unlocks the first component A and the second component B. This utility model uses a handle 2 made of flexible material, allowing one end of the handle 2 to connect to the pull rod 1 and the other end to extend to the outer side of the base plate. That is, while locking is achieved inside the two components, a flexible control component is reserved on the outside of the entire structure. By pulling the handle 2 from the outside, the movement of the pull pin component 3 can be controlled, and the unlocking action is easy to operate. At the same time, after unlocking, the user can also pull the handle 2 to move the second component B as a whole to open the treadmill. The unlocking and unfolding actions are more seamless, conform to the user's movement habits, and further improve the user experience.

[0030] Furthermore, as shown in the attached drawings, in this embodiment of the invention, the locking structure is disposed at the end of the base plate, the pull rod 1 is disposed parallel to the end of the base plate, and the pull pin assembly 3 and the handle 1 are respectively disposed in a direction perpendicular to the end of the base plate. Pulling the handle 1 can cause the pull pin assembly 3 to extend or retract from the end of the base plate. This achieves locking and unlocking of the end of the base plate, and this design is also more in line with the user's operating habits, improving the user experience.

[0031] Furthermore, the handle 2 provided in this embodiment can be made of flexible materials such as webbing or plastic. The first opening 26 can be a through hole opened on the base plate for the handle 2 to pass through, or it can be a natural channel formed at the end of the base plate, which is not limited by this utility model.

[0032] Furthermore, the locking structure provided in this embodiment of the present invention also includes a first guide wheel assembly disposed at the first opening 26. The handle 2 extends from the inner side of the base plate to the outer side of the base plate through the first guide wheel assembly, and the handle 2 slides against the surface of the first guide wheel assembly. Figure 5 As shown, the first guide wheel assembly is located at the junction of the inner and outer sides of the base plate. The first guide wheel assembly includes a first guide wheel shaft 22 fixedly connected to the base plate and a first guide wheel 21 rotatably connected to the first guide wheel shaft 22. The handle 2 abuts against the outer diameter of the first guide wheel 21, which not only limits the movement trajectory of the handle 2, but also reduces the friction during the pulling process of the handle 2 and improves the service life of the handle 2.

[0033] Furthermore, the locking structure provided in this embodiment of the present invention also includes a second guide wheel assembly disposed on the inner side of the base plate, and the side of the second guide wheel assembly is flush with the pull rod 1, that is, the upper surface of the second guide wheel assembly is flush with the surface of the pull rod 1, and the handle 2 slides against the surface of the second guide wheel assembly. At this time, the handle 2 located between the second guide wheel assembly and the pull rod 1 is parallel to the action plane of the pull rod 1. Figure 5 As shown, the structure of the second guide wheel assembly provided in this embodiment of the present invention is the same as that of the first guide wheel assembly. Specifically, it includes a second guide wheel shaft 24 and a second guide wheel 23 rotatably connected to the second guide wheel shaft 24. The handle 2 abuts against the outer circumference of the second guide wheel 23. Since one side of the second guide wheel 23 is flush with the pull rod 1, the handle 2, which is located between the second guide wheel 23 and the pull rod 1 and is parallel to the action plane of the pull rod 1, can be defined by the second guide wheel 23. This makes the pulling action of the handle 2 smoother and reduces the friction during the pulling process, further improving the user experience.

[0034] Specifically, in this embodiment of the present invention, the second guide wheel shaft 24 is fixed to the inner side of the base plate by two pressure plates 25 located at both ends. Fixing the second guide wheel shaft 24 by the pressure plates 25 can prevent the guide wheel shaft from rotating and becoming loose, thereby improving the overall stability of the second guide wheel assembly.

[0035] It should be noted that in this embodiment of the present invention, the locking structure may include only the first guide wheel assembly, or it may include both the first guide wheel assembly and the second guide wheel assembly to further improve the user experience. Furthermore, the second guide wheel assembly may be disposed between the pull rod 1 and the first guide wheel assembly as shown in the attached figure, or it may be disposed on the side of the pull rod 1 away from the first guide wheel assembly, or on the side of the first guide wheel assembly away from the pull rod 1, as long as the handle 2 remains parallel to the operating plane of the pull rod 1 at the point of connection with the pull rod 1.

[0036] Furthermore, in this embodiment of the invention, the end of the handle 2 furthest from the pull rod 1 is fixedly connected to the base plate, so that the handle 2 located on the outside of the base plate forms a ring structure. Figure 6 As shown, the ring-shaped handle 2 makes it easier for users to apply force, further facilitating user operation. In actual operation, users can choose to pull one end of the handle 2 connected to the pull plate to unlock, and by choosing to pull the fixed end of the handle 2 to drag the first component A, the first component A is unfolded, making the unlocking and opening actions seamless and further improving the user experience.

[0037] Furthermore, in an optional embodiment of this utility model, the end of the handle 2 away from the pull rod 1 can extend to the outside of the base plate and then return to the inside of the base plate through a preset return channel, where it is fixed to the base plate. This return channel can be the first opening 26 or other channels opened on the base plate; this utility model does not limit this. It is understood that the end of the handle 2 away from the pull rod 1 can also be connected to the outside of the base plate.

[0038] Furthermore, in another embodiment of this utility model, the locking structure further includes a latch assembly 4 disposed on the outer side of the base plate. The latch assembly 4 has a second opening 44 on its end face near the base plate, allowing the handle 2 to pass through the second opening 44 and enter the interior of the latch assembly 4. A third opening 45 is disposed on the end face of the latch assembly 4 away from the base plate or on the circumferential side of the latch assembly 4, allowing the handle 2 to extend to the outside of the latch assembly 4 through the third opening 45. In this embodiment of the utility model, the latch assembly 4 is fastened at the position of the first opening 26, which can cover the first opening 26 and the first guide wheel 21. Since the first guide wheel 21 is located between the inner and outer sides of the base plate, it often needs to protrude from the outer side of the base plate for easy operation. Therefore, the latch assembly 4 can provide a space to accommodate the first guide wheel assembly, improving the aesthetics of the outer side of the base plate while preventing dust and other impurities from entering the inner side of the base plate through the first opening 26.

[0039] Furthermore, the locking assembly 4 provided in this embodiment of the present invention is also provided with a fixed shaft 43, and the end of the handle 2 away from the pull rod 1 is connected to the fixed shaft 43, so that the handle 2 forms a ring structure on the outside of the locking assembly 4. It can be understood that in this embodiment of the present invention, the end of the handle 2 away from the pull rod 1 can be fixed to the base plate or fixed inside the locking assembly 4. Fixing the handle 2 inside the locking assembly 4 can further improve the aesthetics of the outside of the base plate.

[0040] As shown in the attached drawings, the locking assembly 4 provided in this embodiment of the present invention specifically includes a locking upper cover 41 and a locking lower cover 42. The locking upper cover 41 is fixedly connected to the outer side of the base plate, and a second opening 44 is provided on the locking upper cover 41 so that the handle 2 can be pulled out through the second opening 44. When the handle 2 is pulled out from the second opening 44, its end is fixed to the fixing shaft 43, and the locking lower cover 42 can be fixed to the locking upper cover 41. A recess is provided at one end of the outer diameter of the locking lower cover 42 and the locking upper cover 41. When the locking upper cover 41 and the locking lower cover 42 are fastened together, the recess forms a third opening 45 on the circumferential side of the locking assembly 4. In this embodiment of the present invention, the third opening 45 is provided at one end of the outer diameter of the locking assembly 4, which allows the handle 2 to fit snugly against the outer side of the base plate, improving the overall aesthetics of the handle 2.

[0041] It should be noted that, in this embodiment of the present invention, the fixing shaft 43 can be disposed on the lower cover 42 of the latch as shown in the attached figure. In this case, the side of the annular structure of the handle 2 closest to the base plate is the connection end with the pull rod 1. The fixing shaft 43 can also be disposed on the upper cover 41 of the latch. When connecting, the handle 2 pulled out from the second opening 44 can be folded inward and connected to the fixing shaft 43. In this case, the side of the annular structure of the handle 2 away from the base plate is the connection end with the pull rod 1.

[0042] Furthermore, in a preferred embodiment of this utility model, a connecting strip hole 11 is provided at one end of the handle 2 on the pull rod 1. The end of the handle 2 is inserted into the connecting strip hole 11 and then folded and sewn to achieve connection with the pull rod 1. Similarly, the other end of the handle 2 is fixed by passing through the fixing shaft 43 and then folding and sewing. This method of fixing the handle 2 can reduce the stress on the sewn part of the handle 2 and improve the stability of the handle 2.

[0043] Furthermore, the pull pin assembly 3 provided in this embodiment of the present invention includes a limiting bushing 32 and a limiting shaft 31. The limiting bushing 32 is fixedly connected to the base plate, and the limiting shaft 31 is disposed inside the limiting bushing 32 to limit the movement path of the limiting shaft 31. (See attached...) Figure 3 and attached Figure 4 As shown in the specific embodiment of this utility model, a limiting shaft base 34 is fixedly connected to the inner side of the base plate. The limiting shaft base 34 has an arc-shaped groove for installing the limiting shaft sleeve 32. After the limiting shaft sleeve 32 is placed on the limiting shaft base 34, it is connected to the limiting shaft base 34 through the limiting shaft cover 35. An arc-shaped groove for installing the limiting shaft sleeve 32 is also provided at the relative position of the limiting shaft cover 35, so as to limit the limiting shaft sleeve 32 within the space defined by the limiting shaft base 34 and the limiting shaft cover 35.

[0044] Furthermore, a slot 12 is provided on one end of the pull rod 1 near the pull pin assembly 3. One end of the limiting shaft 31 is slidably connected to the slot 12 of the pull rod 1 via a limiting screw 36, so that when the pull rod 1 rotates, one end of the limiting shaft 31 slides within the slot 12 via the limiting screw 36. This structure ensures that the limiting shaft 31 slides within the linear area defined by the limiting sleeve 32.

[0045] Furthermore, the pull pin assembly 3 also includes an elastic element disposed between the limiting shaft 31 and the limiting sleeve 32. The elastic element abuts against the limiting shaft 31, providing a spring force for the limiting shaft 31 to extend out of the limiting sleeve 32. Specifically, the end of the limiting shaft 31 near the pull rod 1 has a stepped structure, and a spring 33 is sleeved on the limiting shaft 31. One end of the spring 33 abuts against the stepped structure of the limiting shaft 31, and the other end abuts against the spool sleeve, providing a spring force for the limiting shaft 31 to move away from the pull rod 1. Figure 6 and Figure 7 As shown, under the action of the spring force 33, the limiting shaft 31 extends out of the end of the base plate, thus locking in the locking groove corresponding to the limiting shaft 31. When the handle 2 is pulled, the handle 2 drives the pull rod 1 to rotate, and then the pull rod 1 drives the limiting shaft 31 to retract. At this time, the limiting shaft 31 can be pulled out from the locking groove to unlock.

[0046] This utility model embodiment provides a locking structure with the following advantages:

[0047] 1. The handle 2 is made of flexible material and can extend from the inside of the base plate to the outside of the base plate through the preset first opening 26. The flexible handle 2 can be pulled from the outside of the base plate to unlock the inside of the base plate, making the unlocking action more convenient. The handle 2 can also be used to drag the device on the base plate, which is more in line with the user's usage habits and improves the user experience.

[0048] 2. By limiting the trajectory of the handle 2 through the first guide wheel assembly and the second guide wheel assembly, not only can the movement of the lever 1 be made smoother, but the wear of the handle 2 can also be reduced and the service life of the handle 2 can be increased.

[0049] 3. The handle 2 forms a ring structure on the outside of the base plate, which makes the user's unlocking and dragging operation more convenient.

[0050] 4. A locking assembly 4 is installed on the outer side of the base plate, which can not only fix the handle 2, but also improve the aesthetics of the outer side of the base plate.

[0051] 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.

[0052] 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 locking structure, characterized in that, This invention is applied to foldable fitness equipment and includes a pull rod rotatably connected to the inside of the base plate of the fitness equipment. One end of the pull rod is connected to a pull pin assembly, which can extend or retract with the rotation of the pull rod. The other end of the pull rod is connected to a handle made of flexible material. A first opening is provided on the base plate, through which the handle extends from the inside to the outside of the base plate. By pulling the handle from the outside of the base plate, the pull pin assembly on the inside of the base plate can be extended or retracted.

2. The locking structure according to claim 1, characterized in that, The locking structure also includes a first guide wheel assembly disposed in the first opening, and the handle extends from the inside of the base plate to the outside of the base plate through the first guide wheel assembly, with the handle sliding against the surface of the first guide wheel assembly.

3. The locking structure according to claim 2, characterized in that, The locking structure also includes a second guide wheel assembly disposed on the inner side of the base plate, and the side of the second guide wheel assembly is flush with the pull rod. The handle slides against the surface of the second guide wheel assembly so that the handle located between the second guide wheel assembly and the pull rod is parallel to the action plane of the pull rod.

4. The locking structure according to claim 1, characterized in that, The end of the handle away from the pull rod is fixedly connected to the base plate so that the handle located on the outside of the base plate forms a ring structure.

5. The locking structure according to claim 1, characterized in that, The locking structure also includes a latch assembly located on the outside of the base plate. The latch assembly has a second opening on its end face near the base plate so that the handle can pass through the second opening and enter the interior of the latch assembly. The latch assembly has a third opening on its end face away from the base plate or on its circumferential side so that the handle can extend through the third opening to the outside of the latch assembly.

6. The locking structure according to claim 5, characterized in that, The locking assembly also has a fixed shaft, and the end of the handle away from the pull rod is connected to the fixed shaft so that the handle forms a ring structure on the outside of the locking assembly.

7. The locking structure according to claim 1, characterized in that, The pull pin assembly includes a limiting bushing, a limiting shaft, and an elastic element disposed between the limiting shaft and the limiting bushing. The limiting bushing is fixedly connected to the base plate, and the limiting shaft is disposed inside the limiting bushing to limit the movement path of the limiting shaft through the limiting bushing. The elastic element abuts against the limiting shaft to provide elastic force for the limiting shaft to extend out of the limiting bushing.

8. The locking structure according to claim 7, characterized in that, The pull rod is provided with a strip groove, and one end of the limiting shaft is slidably connected to the strip groove of the pull rod so that when the pull rod rotates, one end of the limiting shaft pin slides in the strip groove.

9. The locking structure according to any one of claims 1-8, characterized in that, The locking structure is located at the end of the base plate, the pull rod is set parallel to the end of the base plate, and the pull pin assembly and the handle are respectively set in a direction perpendicular to the end of the base plate. Pulling the handle can cause the pull pin assembly to extend or retract from the end of the base plate.

10. A treadmill, characterized in that, The treadmill includes a first component and a second component that can be folded together. The first component is provided with a locking structure as described in any one of claims 1-9, and the second component is provided with a locking groove, so that the pull pin component of the locking structure is inserted into the locking groove to lock the first component and the second component.

11. The treadmill according to claim 10, characterized in that, The locking structure is disposed at the end of the base plate of the first component. The second component includes a first part that can be folded with the first component and a second part that protrudes from the first part. The end of the second part is disposed opposite to the end of the first component.

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