foldable treadmill

Abstract

To provide a foldable treadmill that is easy to fold and has a stable structure. [Solution] The treadmill includes a base (100), an upright rod (200) whose lower end is rotatably connected to the base, a first position restriction mechanism (400) that realizes positioning between the upright rod and the base, a handle-equipped instrument base (300) that is rotatably connected to the upper end of the upright rod, a second position restriction mechanism (500) that realizes positioning between the handle-equipped instrument base and the upright rod, and a linkage mechanism (600) whose first end is connected to the handle-equipped instrument base and whose second end is connected to the first position restriction mechanism. When the second position restriction mechanism is separated from the upright rod, the handle-equipped instrument base becomes rotatable relative to the upright rod, and the linkage mechanism causes relative movement between the first position restriction mechanism and the upright rod, thereby locking or unlocking the upright rod and the base.

Description

[Technical Field]

[0001] This application relates to exercise equipment, and more particularly to a foldable treadmill. [Background technology]

[0002] As urbanization progresses, people's living spaces become increasingly compact, while interest in healthy lifestyles is on the rise, leading to vigorous growth in the home fitness equipment market. Treadmills are a convenient device that allows for easy indoor aerobic exercise, and are popular among many fitness enthusiasts and ordinary households, with their adoption rate in homes steadily increasing. Considering the convenience of storage, some users are choosing foldable treadmills to save space and fold them up for storage.

[0003] Current folding treadmills are mainly composed of three parts: a base, an upright rod, and a pedestal with a handle. Folding requires two steps: folding the base and upright rod, and then folding the upright rod and pedestal with a handle. This folding process is complicated, and further improvement is needed. Summary of the Invention [Problem to be solved by the invention]

[0004] The present application aims to provide a foldable treadmill that has the advantages of being easy to fold and having a stable structure. [Means for solving the problem]

[0005] To achieve the above objectives, the technical solution of the present application is a foldable treadmill, which includes:

[0006] the instrument base includes a base, an upright rod whose lower end is rotatably connected to the base, a first position restriction mechanism movably attached to the upright rod so as to abut against or separate from the base to lock or unlock rotation between the base and the upright rod, a handle-equipped instrument base rotatably connected to the upper end of the upright rod, a second position restriction mechanism movably attached to the handle-equipped instrument base so as to abut against or separate from the upright rod to lock or unlock rotation between the handle-equipped instrument base and the upright rod, and a linkage mechanism having a first end connected to the handle-equipped instrument base and a second end connected to the first position restriction mechanism, wherein when the second position restriction mechanism is separated from the upright rod, the handle-equipped instrument base becomes rotatable relative to the upright rod, and the first position restriction mechanism and the upright rod move relative to each other via the linkage mechanism, thereby locking or unlocking between the upright rod and the base.

[0007] In one embodiment, the interlocking mechanism is movably mounted within the upright rod, a slide chamber is provided at the lower end of the upright rod, a first positioning hole is provided in the base, and the first position restriction mechanism includes a positioning pin connected to the second end of the interlocking mechanism, the positioning pin being slidably mounted within the slide chamber and capable of being inserted into or separated from the first positioning hole, and a first spring having an upper end and a lower end, the upper end of the first spring being connected to the inner wall of the slide chamber and the lower end of the first spring being connected to the positioning pin, and the first spring being capable of pushing the positioning pin out of the slide chamber and inserting it into the first positioning hole, thereby realizing locking between the upright rod and the base.

[0008] In one embodiment, a position control groove is provided on the side wall of the slide chamber, and the first position control mechanism further includes a stopper pin, the stopper pin is connected to the positioning pin through the position control groove, the stopper pin can move synchronously with the positioning pin, and the stopper pin can cooperate with the position control groove to limit the slide stroke of the positioning pin.

[0009] In one embodiment, a second positioning hole is provided at the upper end of the upright rod, and the second position control mechanism includes a positioning locking piece rotatably connected to the handle-equipped instrument base, the positioning locking piece including an operating end and a plug end, and the positioning between the handle-equipped instrument base and the upright rod is realized or released by rotating the positioning locking piece via the operating end and inserting the plug end into the second positioning hole.

[0010] In one embodiment, a second spring is provided between the positioning locking piece and the handle-equipped instrument base to pull the plug end of the positioning locking piece to insert into the second positioning hole.

[0011] In one embodiment, a cord reel is provided on the handle-equipped instrument base, and the cord reel can move synchronously with the handle-equipped instrument base, and the linkage mechanism is arranged as a connecting rope, and a first end of the connecting rope is connected to the circumferential side of the cord reel and a second end of the connecting rope is connected to the positioning pin.

[0012] In one embodiment, a position limiting pillar is provided at the upper end of the upright rod, and a position limiting notch is provided in the handle-equipped instrument base, and when the handle-equipped instrument base and the upright rod rotate relative to each other, the position limiting pillar slides within the position limiting notch to limit the rotation stroke of the handle-equipped instrument base.

[0013] In one embodiment, a first hinge connection seat is provided on the base, a first hinge connection block is provided at the lower end of the upright rod, and the first hinge connection seat and the first hinge connection block are hingedly connected to each other.

[0014] In one embodiment, a second hinge connection seat is provided at the upper end of the upright rod, and a second hinge connection block is provided on the instrument base with handle, and the second hinge connection seat and the second hinge connection block are hingedly connected to each other.

[0015] In one embodiment, the instrument further includes a platen holder pivotally attached to the handle-equipped instrument base. [Effects of the Invention]

[0016] By adopting the above technical solution, the present invention has the following beneficial effects:

[0017] 1. The treadmill has a double-foldable structure design consisting of an upright rod and base, a handle-equipped instrument stand and an upright rod, which significantly reduces the overall volume after folding, making it easier to store.

[0018] 2. When folding or unfolding the treadmill, simply operate the second positioning mechanism to release the positioning lock between the handle-mounted instrument base and the upright rod, then pull the handle-mounted instrument base to rotate it relative to the upright rod. This synchronizes the operation of the first positioning mechanism through the interlocking mechanism, releasing the positioning restriction between the upright rod and the base. At this point, the upright rod and the base can rotate freely relative to each other, completing the folding or unfolding operation of the treadmill. This interlocking design integrates the release of the positioning locks at two locations and the folding operation, eliminating the need for separate, step-by-step operations, greatly simplifying the folding / unfolding process and improving usability. [Brief explanation of the drawings]

[0019] The drawings in the specification that form a part of this application are intended to provide further understanding of the application, and the schematic examples and descriptions thereof are used to interpret the application and do not constitute undue limitations on the application. [Figure 1] 1 is a structural schematic diagram of a treadmill in one embodiment of the present application. [Figure 2] FIG. 2 is a structural schematic diagram of a treadmill from another perspective in accordance with one embodiment of the present application. [Figure 3] 1 is a structural schematic diagram of a treadmill in a folded state according to one embodiment of the present application; FIG. [Figure 4] FIG. 2 is a structural schematic diagram of a treadmill from another perspective in accordance with one embodiment of the present application. [Figure 5] FIG. 5 is a cross-sectional schematic view taken along the AA direction in FIG. [Figure 6] 1 is a schematic diagram of an exploded view of a treadmill according to one embodiment of the present application. [Figure 7] 1 is a structural schematic diagram of a base of a treadmill in one embodiment of the present application; [Figure 8] FIG. 1 is a structural schematic diagram of an upright rod of a treadmill in one embodiment of the present application. [Figure 9] FIG. 2 is a structural schematic diagram of the upright rod of the treadmill from another perspective in one embodiment of the present application. [Figure 10] FIG. 10 is a cross-sectional schematic view taken along the line BB in FIG. 9. [Figure 11] FIG. 11 is an enlarged schematic view of a portion C in FIG. [Figure 12] 3A and 3B are structural schematic diagrams of a first hinge connection block and a first position restriction mechanism according to an embodiment of the present invention. [Figure 13] FIG. 2 is a structural schematic diagram of a first hinge connection block in one embodiment of the present application. [Figure 14] FIG. 1 is a structural schematic diagram of an instrument base with a handle and an upright rod in one embodiment of the present application. [Figure 15] 1 is a structural schematic diagram of an instrument base with a handle according to one embodiment of the present application; [Figure 16]FIG. 16 is an enlarged schematic view of a portion D in FIG. [Figure 17] FIG. 16 is an enlarged schematic view of a portion E in FIG. [Explanation of symbols]

[0020] 100 base 110 First hinge connection seat 200 upright rod 210 First hinge connection block 220 Second hinge connection seat 230 Slide Chamber 231 Interior wall 232 Connection hole 300 Instrument stand with handle 310 Second hinge connection block 400 First position control mechanism 410 First positioning hole 420 Locating Pin 430 First Spring 440 Stopper pin 450 Position control groove 500 Second position control mechanism 510 Second positioning hole 520 Positioning locking piece 521 Control end 522 plug end 530 Second Spring 540 mounting holes 550 Cord Reel 560 Mounting groove 570 Position Control Pillar 580 Position control notch 581 Folding position control end 582 Deployment position regulation end 600 Interlocking mechanism 601 Connecting Rope 610 First End 620 Second End 700 Platen Holder DETAILED DESCRIPTION OF THE INVENTION

[0021] The present application will now be described in detail by way of examples and with reference to the drawings. Each example is provided as a way of interpreting the present application, and is not intended to limit the present application. In fact, those skilled in the art will recognize that modifications and variations can be made in the present application without departing from the scope or spirit of the present application. For example, features shown or described as part of one embodiment can be used in another embodiment to produce yet another embodiment. Therefore, it is intended that the present application include all such modifications and variations that come within the scope of the utility model claims and their equivalents.

[0022] In the description of this application, the orientations or positional relationships indicated by terms such as "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom" are based on the orientations or positional relationships shown in the drawings and are intended merely to facilitate explanation of the application. The application does not necessarily require that the application be configured or operated in a specific orientation, and should not be understood as a limitation on the application. The terms "couple," "connect," and "provide" used in this application should be understood broadly. For example, they may refer to fixed or detachable connections. They may be directly connected or indirectly connected via an intermediate medium. They may be wired or wireless electrical connections, or may be wireless communication signal connections. Those skilled in the art will understand the specific meanings of the above terms according to specific circumstances.

[0023] The drawings illustrate one or more examples of the present application. In the detailed description, numerals and / or letters refer to features in the drawings. Like or similar reference numerals in the drawings and description are used to represent like or similar parts of the present application. As used herein, terms such as "first," "second," and "third" may be used interchangeably. As such, they are not intended to distinguish one unit from another and are not intended to represent the location or importance of a single unit.

[0024] 1 to 5, this embodiment provides a foldable treadmill, which includes a base 100, an upright rod 200, an instrument base 300 with a handle, a first position restriction mechanism 400, and a second position restriction mechanism 500.

[0025] 1 to 4, the lower end of the upright rod 200 is rotatably connected to the base 100, allowing relative rotation between the upright rod 200 and the base 100, thereby enabling the upright rod 200 to be folded up relative to the base 100. The handle-equipped instrument base 300 is rotatably connected to the upper end of the upright rod 200, allowing relative rotation between the handle-equipped instrument base 300 and the upright rod 200, thereby enabling the handle-equipped instrument base 300 and the upright rod 200 to be folded up relative to the base 100. The double-foldable structure of the treadmill, consisting of the upright rod 200 and the base 100, and the handle-equipped instrument base 300 and the upright rod 200, significantly reduces the overall volume after folding, making it easier to store and transport.

[0026] 4 and 5, the first position limiting mechanism 400 is movably attached to the upright rod 200. The first position limiting mechanism 400 moves relative to the upright rod 200 to abut against or separate from the base 100, thereby locking or unlocking the rotation between the base 100 and the upright rod 200 and ensuring the stability of the connection between them. The second position limiting mechanism 500 is movably attached to the handle-equipped instrument base 300. The second position limiting mechanism 500 moves relative to the handle-equipped instrument base 300 to abut against or separate from the upright rod 200, thereby locking or unlocking the rotation between the handle-equipped instrument base 300 and the upright rod 200. The provision of the second position limiting mechanism 500 can effectively reduce rattling of the handle-equipped instrument base 300 during use of the treadmill and improve the stability of the connection between the handle-equipped instrument base 300 and the upright rod 200.

[0027] As can be seen, by using the first position restricting mechanism 400 to restrict and control the folding between the base 100 and the upright rod 200, and by using the second position restricting mechanism 500 to restrict and control the folding between the upright rod 200 and the instrument stand with handle 300, the treadmill can maintain excellent structural stability whether in use or storage, effectively preventing the folding design from affecting structural stability, and achieving both reliability in use and flexibility in storage.

[0028] 5, 10, and 11, the interlocking mechanism 600 includes a first end 610 and a second end 620. The first end 610 is connected to the handle-equipped instrument base 300, and the second end 620 is connected to the first position limiting mechanism 400. When the second position limiting mechanism 500 is separated from the upright rod 200, a force is applied to the handle-equipped instrument base 300, pulling the handle-equipped instrument base 300 to rotate relative to the upright rod 200. During the rotation process, the handle-equipped instrument base 300 can be driven synchronously by the interlocking mechanism 600 so that the first position limiting mechanism 400 and the upright rod 200 move relative to each other. The first position limiting mechanism 400 abuts against the base 100 to lock or separates from the base 100 to unlock, thereby realizing locking or unlocking between the base 100 and the upright rod 200. In this way, the treadmill can be completely folded / unfolded simply by unlocking the second position restriction mechanism 500 and moving the handle-equipped instrument base 300. The interlocking mechanism 600 integrates the unlocking of the first position restriction mechanism 400 and the rotation of the handle-equipped instrument base 300, eliminating the need for separate, step-by-step operations and significantly simplifying the folding / unfolding process of the treadmill, improving ease of use.

[0029] 6 to 14, in one embodiment, a first hinge connection seat 110 is provided on the base 100, a first hinge connection block 210 is provided on the lower end of the upright rod 200, and the first hinge connection seat 110 and the first hinge connection block 210 are hinged to each other to realize a rotatable connection between the upright rod 200 and the base 100 and structurally support the relative folding of the two. A second hinge connection seat 220 is provided on the upper end of the upright rod 200, and a second hinge connection block 310 is provided correspondingly on the handle-equipped instrument base 300, and the second hinge connection seat 220 and the second hinge connection block 310 are hinged to each other to realize a rotatable connection between the handle-equipped instrument base 300 and the upright rod 200 and structurally support the relative folding of the two. By providing a hinge connection structure in two places, the smoothness of the treadmill's rotation and the stability of the connection can be improved, reliably supporting the double folding function of the treadmill and ensuring the stability of the structure during use.

[0030] As shown in FIGS. 10 to 13 , in one embodiment, a slide chamber 230 is formed at the lower end of the upright rod 200, and a first positioning hole 410 is formed in the base 100. The first position restriction mechanism 400 includes a positioning pin 420 and a first spring 430. Specifically, the positioning pin 420 is slidably attached within the slide chamber 230. The first spring 430 is a compression spring, and its upper end is connected to an inner wall 231 of the slide chamber 230 and its lower end is connected to the positioning pin 420. A connecting hole 232 is formed in the inner wall 231 of the slide chamber 230, and a second end 620 of the interlocking mechanism 600 passes through the connecting hole 232, and the first spring 430 is connected to the positioning pin 420.

[0031] In this embodiment, the interlocking mechanism 600 is provided inside the upright rod 200, which improves the simplicity of the appearance of the treadmill and prevents the interlocking function from being lost due to damage to the interlocking mechanism 600. Of course, in other embodiments, the interlocking mechanism 600 may be provided outside the upright rod 200, as long as it is possible to interlock the rotation of the handle-equipped instrument base 300 with the first position restriction mechanism 400.

[0032] When folding the treadmill, an external force is applied to the handle-equipped instrument base 300, which rotates relative to the upright rod 200. During the rotation of the handle-equipped instrument base 300, the interlocking mechanism 600 synchronously pulls the positioning pin 420 to slide, causing the positioning pin 420 to disengage from the first positioning hole 410 and compress the first spring 430. At this time, the first position restriction mechanism 400 releases the position restriction between the upright rod 200 and the base 100, and the folding operation between the upright rod 200 and the base 100 is performed. Specifically, after the first position restriction mechanism 400 releases the position restriction of the upright rod 200 and the base 100, a force can be continuously applied to the handle-equipped instrument stand 300, causing the upright rod 200 and the base 100 to rotate relative to each other, and the handle-equipped instrument stand 300 to approach the side where the base 100 is located. After the handle-equipped instrument stand 300 and the upright rod 200 reach the folding position, the folding operation of the treadmill is completed.

[0033] When unfolding the treadmill, applying force to the handle-equipped instrument base 300 causes the upright rod 200 and the base 100 to rotate relative to each other, and the handle-equipped instrument base 300 moves away from the base 100. During this process, the upright rod 200 and the base 100 slowly rotate and unfold, while the handle-equipped instrument base 300 and the upright rod 200 also slowly rotate and unfold. When the positioning pin 420 reaches the position where the first positioning hole 410 is located, the compressed first spring 430 releases its elastic force, pressing the positioning pin 420 into the first positioning hole 410, automatically locking the relative positions between the upright rod 200 and the base 100. In this way, it can be confirmed that the upright rod 200 and the base 100 have reached the unfolded state. Finally, the handle-equipped instrument base 300 and the upright rod 200 are adjusted to the unfolded state, thereby achieving the unfolding operation of the treadmill.

[0034] In one embodiment, a position limiting groove 450 is formed in the side wall of the slide chamber 230, and the extending direction of the position limiting groove 450 coincides with the moving direction of the positioning pin 420. The first position limiting mechanism 400 further includes a stopper pin 440. Specifically, the stopper pin 440 is screwed into the positioning pin 420 through the position limiting groove 450 and can move synchronously with the positioning pin 420. The screwing direction of the stopper pin 440 is perpendicular to the sliding direction of the positioning pin 420. When the positioning pin 420 slides within the slide chamber 230, the stopper pin 440 can be driven to slide synchronously within the position limiting groove 450. The stopper pin 440 can precisely guide the positioning pin 420, ensuring smooth sliding of the positioning pin 420. At the same time, the position restricting groove 450 limits the sliding distance of the stopper pin 440, thereby indirectly restricting the sliding stroke of the positioning pin 420 and preventing the positioning pin 420 from sliding out too far or retracting, thereby improving the reliability of locking and unlocking the base 100 by the first position restricting mechanism 400. In addition, the stopper pin 440 limits the rotation range of the instrument base with handle 300 and the upright rod 200 in the opposite direction via the interlocking mechanism 600, preventing damage to components due to an excessive rotation angle between the instrument base with handle 300 and the upright rod 200 and further improving the stability and service life of the entire structure.

[0035] In one embodiment, as shown in FIGS. 8 and 14 to 17 , a second positioning hole 510 is provided at the upper end of the upright rod 200, and the second position restriction mechanism 500 is configured as a positioning locking piece 520 rotatably attached to the instrument base with handle 300. The positioning locking piece 520 includes an operating end 521 and a plug end 522. A user can rotate the positioning locking piece 520 by moving the operating end 521. When the plug end 522 is rotated and fitted into the second positioning hole 510, the instrument base with handle 300 and the upright rod 200 are positioned and locked. When the operating end 521 is rotated in the opposite direction, the plug end 522 is disengaged from the second positioning hole 510, releasing the positioning between the instrument base with handle 300 and the upright rod 200. This facilitates the folding and unfolding of the instrument base with handle 300 and the upright rod 200 relative to each other. The manually rotated positioning locking piece 520 has a simple design structure, is easy to operate, and can achieve highly reliable positioning without the need for complex components.

[0036] In one embodiment, a second spring 530 is provided between the positioning locking piece 520 and the instrument base with handle 300. The second spring 530 is a tension spring that can constantly apply force to the positioning locking piece 520, causing the plug end 522 of the positioning locking piece 520 to maintain a position inserted into the second positioning hole 510. When the instrument base with handle 300 and the upright rod 200 rotate to the deployed position, the second spring 530 automatically pulls the positioning locking piece 520 to rotate, and accurately inserts the plug end 522 into the second positioning hole 510, thereby realizing automatic locking of the second position restriction mechanism 500 and eliminating the need for manual positioning and insertion. When unlocking, the plug end 522 can be released from the second positioning hole 510 by moving the operating end 521 of the positioning latch piece 520 against the elastic force of the second spring 530, which is convenient to operate and maintains a stable locked state, further improving the reliability of the second position restriction mechanism 500.

[0037] In one embodiment, the instrument base with handle 300 is provided with a plurality of mounting holes 540 to which second springs 530 are connected. One end of the second spring 530 can be selectively attached to any one of the mounting holes 540. By selecting different mounting holes 540 to connect to the second spring 530, the amount of force with which the spring pulls the positioning latch 520 can be changed, allowing for flexible adjustment of the force with which the second position restriction mechanism 500 automatically locks, thereby meeting the demands for lock reliability in different usage scenarios. At the same time, the resistance during unlocking can be adjusted according to the user's preferred tactile feel during operation, enhancing the customizability of the design.

[0038] In one embodiment, the handle-equipped instrument base 300 is provided with a cord reel 550, which is coaxially and fixedly connected to the second hinge connection block 310. The interlocking mechanism 600 is arranged as a connecting rope 601, a first end 610 of which is fixedly connected to the periphery of the cord reel 550, and a second end 620 of which is connected to the positioning pin 420. When the handle-equipped instrument base 300 and the upright rod 200 rotate relative to each other, the cord reel 550 rotates synchronously with the handle-equipped instrument base 300, and as the cord reel 550 rotates, the connecting rope 601 is simultaneously tightened or loosened. In the tightened state, the positioning pin 420 is pulled out of the first positioning hole 410, and the positioning between the upright rod 200 and the base 100 is released. In the loosened state, no force is applied and the positioning pin 420 is smoothly inserted into the first positioning hole 410 by the elastic force of the first spring 430, completing automatic locking, thereby perfectly meeting the requirements for interlocking double folding and positioning.

[0039] In one embodiment, as shown in FIGS. 16 and 17 , multiple mounting grooves 560 are provided around the periphery of the cord reel 550, and the first end 610 of the connecting rope 601 can be fixed to any one of the mounting grooves 560. By attaching the connecting rope 601 to mounting grooves 560 in different positions, the initial tension of the connecting rope 601 can be flexibly adjusted. This avoids delays in interlocking due to excessive slack in the connecting rope 601, while also preventing excessive resistance to unlocking due to excessive tightening of the connecting rope 601. By reliably driving the operation of the positioning pin 420 when the cord reel 550 rotates, the power transmission of the interlocking mechanism 600 is more stable and highly adaptable.

[0040] In one embodiment, a wire rope is used for the connecting rope 601. Because it is strong and resistant to stretching and deformation, it can maintain stable power transmission even in scenarios where frequent tightening and loosening is required, ensuring the accuracy and reliability of the interlocking unlocking and locking operations. Of course, in other embodiments, a high-strength, flexible material such as nylon rope or polyester rope can be selected according to actual requirements, which can meet the tensile load needs and service life requirements during the power transmission process.

[0041] In one embodiment, a position limiting post 570 is provided at the upper end of the upright rod 200, and a position limiting notch 580 is correspondingly formed in the handle-equipped instrument base 300. During the relative rotation of the handle-equipped instrument base 300 and the upright rod 200, the position limiting post 570 slides synchronously inside the position limiting notch 580, limiting the rotation stroke and stop position of the handle-equipped instrument base 300 and preventing the handle-equipped instrument base 300 and the upright rod 200 from being damaged due to excessive rotation. The position limiting notch 580 is provided with a folding position limiting end 581 and an unfolding position limiting end 582. When the position limiting post 570 slides into the unfolding position limiting end 582, the groove wall of the position limiting notch 580 always abuts against the upper side of the position limiting post 570 and is pushed down by the gravity of the handle-equipped instrument base 300 itself, thereby realizing positional regulation. The deployed position of the instrument stand with handle 300 can be fixed reliably, and the stability during use can be improved, preventing wobbling from affecting the user experience.

[0042] In one embodiment, the treadmill further includes a platen holder 700, which is rotatably attached to the handle-equipped instrument base 300. The user can place an electronic device such as a tablet or smartphone on the platen holder 700, and the angle of the platen holder 700 can be adjusted according to usage needs. This makes it easy to watch videos or check exercise data while running, further expanding usage scenarios and enhancing convenience and the experience during exercise. At the same time, rotating the platen holder 700 further reduces the volume of the treadmill after folding, improving the folding efficiency of the treadmill.

[0043] The principle of the treadmill of the present invention is as follows.

[0044] When folding the treadmill from the unfolded state, the operating end 521 of the positioning latch 520 is first moved, and the plug end 522 of the positioning latch 520 disengages from the second positioning hole 510 against the elastic force of the second spring 530, thereby unlocking the handle-equipped instrument base 300 and the upright rod 200. Then, a force is applied to the handle-equipped instrument base 300, causing the handle-equipped instrument base 300 to rotate relative to the upright rod 200 and driving the cord reel 550 to rotate synchronously, thereby winding the connecting rope 601 onto the cord reel 550. During the process of winding the connecting rope 601 by the cord reel 550, the connecting rope 601 applies a force to the positioning pin 420, which retracts the positioning pin 420 from the first positioning hole 410 into the slide chamber 230 and compresses the first spring 430, thereby unlocking the base 100 and the upright rod 200. Furthermore, as the instrument base with handle 300 rotates, the position restricting post 570 moves within the position restricting notch 580, and when the position restricting post 570 abuts against the folding position restricting end 581, the instrument base with handle 300 and the upright rod 200 are folded. Finally, a force is applied to the upright rod 200, and the upright rod 200 rotates relative to the base 100. When the upright rod 200 rotates to the folded position, the upright rod 200 and the base 100 are folded. As a result, the entire treadmill is completely folded.

[0045] When the treadmill is unfolded from the folded state, first, the upright rod 200 is pulled so that it rotates relative to the base 100, creating space for the handle-equipped instrument base 300 to rotate relative to the upright rod 200. Then, by continuing to pull the handle-equipped instrument base 300, a relative rotation occurs between the handle-equipped instrument base 300 and the upright rod 200. At this time, the handle-equipped instrument base 300 can drive the cord reel 550 to rotate synchronously, thereby unwinding a portion of the connecting rope 601 from the cord reel 550, and the pulling force of the connecting rope 601 on the positioning pin 420 is released. As the instrument base with handle 300 rotates, the position restricting post 570 moves within the position restricting notch 580. When the position restricting post 570 abuts against the extended position restricting end 582, the plug end 522 of the positioning locking piece 520 reaches the position of the second positioning hole 510 and is accurately inserted into the second positioning hole 510 by the elastic force of the second spring 530, thereby realizing the extension between the instrument base with handle 300 and the upright rod 200. Finally, when the pulling upright rod 200 rotates to the extended position, the compressed first spring 430 presses the positioning pin 420 into the first positioning hole 410, thereby automatically locking the relative positions between the upright rod 200 and the base 100 and completing the folding of the entire treadmill.

[0046] In the process of unfolding the treadmill from the folded state, the first position restriction mechanism 400 is in a locked state before the treadmill is completely unfolded. At this time, the upright rod 200 and the base 100 can rotate. Thus, the upright rod 200 is first pulled to rotate relative to the base 100, creating space for the handle-equipped instrument base 300 to rotate relative to the upright rod 200. The handle-equipped instrument base 300 and the upright rod 200, and the upright rod 200 and the base 100 can rotate to the unfolded position, and there is no clear order of rotation. When the unfolded position is reached, the first position restriction mechanism 400 and the second position restriction mechanism 500 lock to stop the unfolded position, and this state is stably maintained. Conversely, when folding from the unfolded state, first the second position restriction mechanism 500 is unlocked, then the cord reel 550 in the handle-equipped instrument base 300 is driven to wind up the connecting rope 601, and after the connecting rope 601 drives the first position restriction mechanism 400 to be unlocked, the upright rod 200 is stored.

[0047] As can be seen from the above description, the above embodiments of the present invention achieve the following technical effects.

[0048] 1. The treadmill has a double-foldable structure design consisting of the upright rod 200 and the base 100, and the instrument stand with handle 300 and the upright rod 200. This significantly reduces the overall volume after folding, making it easier to store and keep.

[0049] 2. When the treadmill needs to be folded or unfolded, simply operate the second positioning mechanism 500 to unlock the positioning lock between the handle-equipped instrument base 300 and the upright rod 200, then pull the handle-equipped instrument base 300 to rotate it relative to the upright rod 200. This synchronizes the operation of the first positioning mechanism 400 via the interlocking mechanism 600, releasing the positioning restriction between the upright rod 200 and the base 100. At this point, the upright rod 200 and the base 100 can freely rotate relative to each other, completing the folding or unfolding operation of the treadmill. This interlocking design integrates the unlocking of the positioning locks at two locations and the folding operation, eliminating the need for separate, step-by-step operations, greatly simplifying the folding / unfolding process and improving usability.

[0050] The above are merely some examples of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present application shall fall within the protection scope of the present application.

Claims

1. A foldable treadmill, With the base, an upright rod whose lower end is pivotally connected to the base; a first position restriction mechanism movably attached to the upright rod so as to abut against or separate from the base to lock or unlock rotation between the base and the upright rod; an instrument base with a handle pivotally connected to the upper end of the upright rod; a second position restriction mechanism movably attached to the handle-equipped instrument base so as to abut against or separate from the upright rod to lock or unlock rotation between the handle-equipped instrument base and the upright rod; a linkage mechanism having a first end connected to the instrument base with handle and a second end connected to the first position restriction mechanism; A foldable treadmill characterized in that, when the second position restriction mechanism is separated from the upright rod, the instrument base with handle becomes rotatable relative to the upright rod, and causes the first position restriction mechanism and the upright rod to move relative to each other via the linkage mechanism, thereby locking or unlocking the upright rod and the base.

2. The interlocking mechanism is movably mounted within the upright rod, a slide chamber is provided at the lower end of the upright rod, and a first positioning hole is provided in the base; The first position restriction mechanism includes: a positioning pin connected to a second end of the linkage mechanism, the positioning pin being slidably mounted within the slide chamber and capable of being inserted into or separated from the first positioning hole; 2. The foldable treadmill of claim 1, further comprising: a first spring having an upper end and a lower end, the upper end of the first spring being connected to the inner wall of the slide chamber and the lower end of the first spring being connected to the positioning pin, the first spring being capable of pushing the positioning pin out of the slide chamber and inserting into the first positioning hole, thereby realizing a lock between the upright rod and the base.

3. 3. The foldable treadmill of claim 2, wherein a position limiting groove is provided on the side wall of the slide chamber, and the first position limiting mechanism further includes a stopper pin, the stopper pin is connected to the positioning pin through the position limiting groove, the stopper pin can move synchronously with the positioning pin, and the stopper pin can limit the sliding stroke of the positioning pin by cooperating with the position limiting groove.

4. a second positioning hole is provided at the upper end of the upright rod; 2. The foldable treadmill of claim 1, wherein the second position restriction mechanism includes a positioning locking piece rotatably connected to the handle-equipped instrument base, the positioning locking piece including an operating end and a plug end, and the positioning between the handle-equipped instrument base and the upright rod is realized or released by rotating the positioning locking piece via the operating end and inserting the plug end into the second positioning hole.

5. 5. The foldable treadmill of claim 4, wherein a second spring is provided between the positioning locking piece and the instrument base with handle to pull the plug end of the positioning locking piece so as to insert it into the second positioning hole.

6. 5. The foldable treadmill of claim 4, wherein the handle-equipped instrument base is provided with a cord reel, and the cord reel can move synchronously with the handle-equipped instrument base, and the linkage mechanism is arranged as a connecting rope, a first end of the connecting rope being connected to the circumferential side of the cord reel, and a second end of the connecting rope being connected to the positioning pin.

7. a position restricting post is provided at the upper end of the upright rod, and a position restricting notch is provided in the instrument base with handle; 2. The foldable treadmill of claim 1, wherein when the instrument base with handle and the upright rod rotate relative to each other, the position limiting post slides within the position limiting notch to limit the rotation stroke of the instrument base with handle.

8. 2. The foldable treadmill of claim 1, wherein a first hinge connection seat is provided on the base, a first hinge connection block is provided at the lower end of the upright rod, and the first hinge connection seat and the first hinge connection block are hingedly connected to each other.

9. 2. The foldable treadmill of claim 1, wherein a second hinge connection seat is provided at the upper end of the upright rod, a second hinge connection block is provided on the instrument base with handle, and the second hinge connection seat and the second hinge connection block are hingedly connected to each other.

10. 10. The foldable treadmill of claim 1 further comprising a platen holder pivotally mounted to said handle base.

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