Folding treadmill

Abstract

The utility model provides a folding treadmill which comprises a treadmill platform, two symmetrically arranged handrails and a stand column supported between the treadmill platform and the handrails, the stand column comprises a first column end and a second column end, the first column end is rotatably connected with the treadmill platform, and the second column end is rotatably connected with the handrails, so that folding of the stand column and the handrails is achieved. The treadmill comprises a telescopic lock pin, the lock pin is suitable for extending into the first column end to limit rotation of the first column end relative to the treadmill, when the handrail rotates, the lock pin is synchronously driven to retreat from the first column end through a wire pulling device to unlock, the handrail comprises a movably-arranged handle, the handle comprises lock teeth, and the second column end comprises a lock groove. The locking teeth are clamped into the locking grooves to limit rotation of the second column end relative to the handrail. According to the foldable treadmill, stable locking and rapid unlocking of the stand columns and the treadmill platform are controlled through the handrails through matching of the lock teeth and the lock grooves and matching of the pull wire device and the lock pins, operation is easy, and a user can rapidly fold and unfold the whole treadmill by holding the handrails with the two hands respectively.

Description

Technical Field

[0001] The utility model belongs to the technical field of treadmills, and in particular relates to a foldable treadmill. Background Art

[0002] Most existing treadmills are fixed in design, occupying a large space and being inconvenient for transportation and storage. Especially now that living space is generally low and online shopping has become the mainstream consumption mode, the market demand for foldable treadmills is growing. However, their folding mechanisms are usually complicated, requiring users to manually unlock the columns and handrails before folding them. In particular, the locking structure of the columns and the running platform is mostly set on the running platform. When unlocking, multiple people are required to support the columns to avoid safety hazards caused by rapid tipping after unlocking, and the operation is complicated. Utility Model Content

[0003] In view of the above-mentioned defects of the prior art, the purpose of the present invention is to provide a foldable treadmill to meet the needs of users.

[0004] To achieve the above-mentioned objectives, the present invention provides a foldable treadmill, comprising a treadmill, two symmetrically arranged handrails, and a column supported between the treadmill and the handrails, the column comprising a first column end and a second column end, the first column end being rotatably connected to the treadmill, and the second column end being rotatably connected to the handrail to achieve folding of the column and the handrail, the treadmill comprising a retractable locking pin, the locking pin being suitable for extending into the first column end to limit its rotation relative to the treadmill, and when the handrail rotates, the locking pin is synchronously driven to withdraw from the first column end by a pull wire device to release the lock, the handrail comprising a movably arranged handle, the handle comprising a locking tooth, the second column end comprising a locking groove, the locking tooth being engaged in the locking groove to limit the rotation of the second column end relative to the handrail.

[0005] Preferably, the treadmill includes a first frame, the first frame includes two parallel first longitudinal rods, the first column end is hinged to the outer side of the first longitudinal rod, the locking pin is arranged on the inner side of the first longitudinal rod, and the locking pin is suitable for extending and retracting in a direction perpendicular to the first longitudinal rod.

[0006] Preferably, the column is a hollow structure, one end of the pull-wire device is connected to the handrail, and the other end of the pull-wire device passes through the column and is connected to the locking pin arranged away from the column.

[0007] Preferably, the treadmill further comprises a pedal, an electromechanical device and a first shell, part of the first frame is suitable for supporting the pedal, part of the first frame and the first shell are enclosed to form an electromechanical cavity suitable for accommodating the electromechanical device, the first shell includes a rope hole for the wire pulling device to pass through, and the two wire pulling devices are cross-arranged in the electromechanical cavity.

[0008] Preferably, the first column end includes a first turntable arranged facing the first longitudinal rod, the first turntable is hinged to the first longitudinal rod, the first turntable includes a positioning hole and a first limit groove, a first limit column extends vertically to the outside of the first longitudinal rod, the first limit column and the first limit groove slide together to limit the maximum rotation range of the first column end to between 45°-75°, and the first limit groove includes a first starting end and a first ending end.

[0009] When the first limit column abuts the first starting end, the positioning hole is aligned with the locking pin, and the column is in an expanded state; when the first limit column abuts the first ending end, the positioning hole is staggered with the locking pin, and the column is in a folded state.

[0010] Preferably, the first limit groove includes a limit ridge arranged adjacent to the first starting end, and the limit ridge is suitable for preventing the first limit column from sliding out directly from the first starting end. This design is intended to prevent the column from folding downward rapidly under the action of gravity after contact locking, thereby preventing the user's wrist, arm, etc. from receiving a huge impact in a short period of time, and preventing the handrail from falling out of the hand and causing structural damage.

[0011] Preferably: the first longitudinal rod includes a guide groove suitable for guiding the sliding of the locking pin, the first frame includes a first cross rod supported on the two ends of the first longitudinal rod, the first cross rod is equipped with a first matching bracket, the pulling wire device passes through the first matching bracket and is connected to the locking pin, and a first return spring is abutted between the first matching bracket and the locking pin, and the first return spring is suitable for driving the locking pin to be stuck into the first column end and hold it.

[0012] Preferably, the second column end includes a second turntable, the armrest includes a third turntable, the handle and the second turntable are pivotally connected to the third turntable respectively, the handle and the second turntable are arranged in parallel or coplanar, and the second turntable is formed with the lock groove.

[0013] Furthermore, the armrest includes a second frame and a second shell suitable for covering the second frame, the handle includes a fourth turntable pivotally connected to the third turntable and a gripping portion suitable for extending out of the second shell, the fourth turntable is integrally formed with the lock teeth, and the gripping portion includes a rubber layer with anti-slip grooves.

[0014] Furthermore, a reversing wheel is provided at the end of the first column, and the reversing wheel is suitable for guiding the wire pulling device to extend into the electromechanical cavity.

[0015] Preferably, the locking tooth includes a first locking surface, the locking groove includes a second locking surface, and the first locking surface and the second locking surface form an abutment fit perpendicular to the rotation direction of the second turntable.

[0016] As a preferred embodiment, the lock tooth includes a first guide surface, and the lock slot includes a second guide surface, and the first guide surface and the second guide surface are slidably matched to guide the lock tooth to fit into the lock slot.

[0017] Preferably, the third turntable includes a range-limiting arc surface, the second turntable extends a second range-limiting column facing the third turntable, and the two ends of the range-limiting arc surface are respectively formed with a second starting end and a second ending end, and the second range-limiting column slides with the range-limiting arc surface to limit the maximum rotation range of the second column end to between 45°-75°.

[0018] When the second limit column abuts the second starting end, the lock tooth can be locked in the lock groove, and the armrest is in an unfolded state; when the first limit column abuts the first ending end, the lock tooth completely disengages from the lock groove, and the armrest is in a folded state.

[0019] Furthermore, in the unfolded state, the armrest is arranged horizontally, or the armrest is arranged parallel to the treadmill.

[0020] Furthermore, the lock tooth completely disengaging from the lock groove means that the first locking surface is not in contact with the second locking surface.

[0021] Preferably, the second turntable is equipped with a second mating bracket, the wire pulling device passes through the mating bracket and is installed on the third turntable, a second return spring is provided between the handle and the second mating bracket, and the second return spring is suitable for driving the lock tooth to engage in the lock slot and maintain it.

[0022] Preferably: the wire pulling device includes a wire pulling tube head and a wire pulling wire, or the wire pulling device includes a protective cover and a wire pulling wire, both ends of the protective cover have wire pulling tube heads, the wire pulling tube heads are respectively installed to the first mating bracket and the second mating bracket through nuts, and both ends of the wire pulling wire are suitable for passing through the wire pulling tube heads and being respectively connected to the locking pin and the third turntable.

[0023] The beneficial effects of the utility model are:

[0024] The cooperation between the lock teeth and the lock groove enables stable locking and quick unlocking between the armrest and the column. Furthermore, the cooperation between the pull wire device and the lock pin enables stable locking and quick unlocking of the column and the treadmill controlled by the armrest. The operation is simple. The user can quickly fold and unfold the entire treadmill by holding the armrest with both hands. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The utility model provides an exploded schematic diagram of a folding treadmill.

[0026] Figure 2 This is a schematic diagram of the interior of the treadmill provided by the utility model.

[0027] Figure 3 for Figure 2 A magnified schematic diagram of a local area.

[0028] Figure 4 This is an exploded schematic diagram of the column provided by the utility model.

[0029] Figure 5 This is a structural schematic diagram of the first turntable provided by the utility model.

[0030] Figure 6 This is an exploded schematic diagram of the handrail provided by the utility model.

[0031] Figure 7 This is a schematic diagram of the assembly of the second turntable, the third turntable and the handle provided by the utility model.

[0032] Figure 8 This is a schematic assembly diagram of the second turntable, the third turntable and the handle provided by the utility model from another angle.

[0033] Figure 9 This is a structural diagram of the handle provided by the utility model.

[0034] In the figure: treadmill 100, pedal 101, electromechanical device 102, first housing 103, first longitudinal rod 104, first transverse rod 105, locking pin 106, guide groove 107, first matching bracket 108, first return spring 109, rope threading hole 110, first limit column 111, column 200, first column end 201, second column end 202, first turntable 203, second turntable 204, second matching bracket 205, positioning hole 206, first limit groove 207, first starting end 208, first ending end 209 9. Limiting ridge 210, locking groove 211, second limiting column 212, second locking surface 213, second guide surface 214, armrest 300, handle 301, second frame 302, second shell 303, second longitudinal rod 304, third turntable 305, fourth turntable 306, gripping part 307, second return spring 308, locking tooth 309, limiting arc surface 310, second starting end 311, second ending end 312, first locking surface 313, first guide surface 314, wire tube head 401, wire 402. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] It should also be noted here that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0037] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0038] like Figure 1-9 A foldable treadmill includes a treadmill 100, two symmetrically arranged handrails 300, and a hollow column 200 supported between the treadmill 100 and the handrails 300. The column 200 includes a first column end 201 and a second column end 202. The first column end 201 is rotatably connected to the treadmill 100, and the second column end 202 is rotatably connected to the handrail 300, so that the column 200 and the handrail 300 can be folded. The treadmill 100 includes a retractable locking pin 106, which is suitable for extending into the first column end 201 to limit its rotation relative to the treadmill 100. When the handrail 300 rotates, the locking pin 106 is synchronously driven by a pull wire device to withdraw from the first column end 201 to release the lock. The handrail 300 includes a movably arranged handle 301, the handle 301 includes a locking tooth 309, and the second column end 202 includes a locking groove 211. The locking tooth 309 is engaged with the locking groove 211 to limit the rotation of the second column end 202 relative to the handrail 300.

[0039] In this embodiment, the cable pulling device includes a cable pulling tube head 401 and a cable 402. The treadmill 100 includes a first frame, a pedal 101, an electromechanical device 102, and a first housing 103. Part of the first frame is suitable for supporting the pedal 101, and part of the first frame and the first housing 103 enclose an electromechanical cavity suitable for accommodating the electromechanical device 102. The first frame includes two parallel first longitudinal rods 104 and a first cross bar 105 supported at the ends of the two first longitudinal rods 104. The first longitudinal rods 104 include guide grooves 107 suitable for guiding the locking pin 106 to slide in a direction perpendicular to the first longitudinal rods 104. The first frame includes a first mating bracket 108 mounted on the first cross bar 105. A first return spring 109 is abutted between the first mating bracket 108 and the locking pin 106. The first return spring 109 is suitable for driving the locking pin 106 to engage and retain the first column end 201. The cable gland 401 is mounted to the first mating bracket 108 via a nut. One end of the cable 402 is adapted to pass through the cable gland 401 and connect to the locking pin 106 disposed remotely therefrom. The two cable assemblies are disposed crosswise in the electromechanical cavity. Furthermore, the first housing 103 includes a threading hole 110 for the cable assemblies to pass through.

[0040] In some other embodiments, the first column end 201 is provided with a reversing wheel, which is suitable for guiding the wire pulling device to extend into the electromechanical cavity.

[0041] In this embodiment, the first column end 201 is hingedly connected to the outside of the first longitudinal rod 104. Specifically, the first column end 201 includes a first rotating disk 203 disposed facing the first longitudinal rod 104, and the first rotating disk 203 is hingedly connected to the first longitudinal rod 104. A first limit column 111 extends perpendicularly from the outside of the first longitudinal rod 104. The first rotating disk 203 includes a positioning hole 206 and a first limit groove 207. The first limit column 111 slidably cooperates with the first limit groove 207 to limit the maximum rotation range of the first column end 201 to 60°. The first limit groove 207 includes a first starting end 208 and a first ending end 209.

[0042] When the first limit column 111 abuts the first starting end 208, the positioning hole 206 is aligned with the locking pin 106, and the column 200 is in an expanded state; when the first limit column 111 abuts the first ending end 209, the positioning hole 206 is staggered with the locking pin 106, and the column 200 is in a folded state.

[0043] In this embodiment, the first limit groove 207 includes a limit rib 210 arranged adjacent to the first starting end 208. The limit rib 210 is suitable for preventing the first limit column 111 from sliding out directly from the first starting end 208. This design is intended to prevent the column 200 from folding downward rapidly under the action of gravity after contact locking, thereby preventing the user's wrist, arm, etc. from receiving a huge impact in a short period of time, and preventing the armrest 300 from falling out of the hand and causing structural damage.

[0044] In this embodiment, the second column end 202 is hinged to the outside of the armrest 300. Specifically, the second column end 202 includes a second turntable 204 mounted on a second matching bracket 205 of the second turntable 204. The armrest 300 includes a second frame 302 and a second shell 303 suitable for covering the second frame 302. The second frame 302 includes two parallel second longitudinal rods 304. The second longitudinal rods 304 are relatively fixedly mounted with a third turntable 305. The handle 301 includes a fourth turntable 306 pivoted to the third turntable 305 and a gripping portion 307 suitable for extending out of the second shell 303. The gripping portion 307 includes a rubber coating with anti-slip grooves. The second turntable 204 is pivoted to the third turntable 305. The wire tube head 401 is mounted to the second matching bracket 205 via a nut. The other end of the pull wire 402 is suitable for passing through the wire tube head 401 and connecting to the third turntable 305. A second return spring 308 is provided between the fourth rotary disk 306 and the second matching bracket 205 . The second return spring 308 is adapted to drive the lock tooth 309 to engage in the lock slot 211 and retain the lock.

[0045] In this embodiment, the second rotary disk 204 and the fourth rotary disk 306 are arranged in the same plane. The second rotary disk 204 is integrally formed with a locking groove 211 , and the fourth rotary disk 306 is integrally formed with a locking tooth 309 .

[0046] In this embodiment, the third turntable 305 includes a range-limiting arc surface 310, and the second range-limiting column 212 extends from the second turntable 204 facing the third turntable 305. The two ends of the range-limiting arc surface 310 are respectively formed with a second starting end 311 and a second ending end 312. The second range-limiting column 212 slides with the range-limiting arc surface 310 to limit the maximum rotation range of the second column end 202 to 60°.

[0047] When the second limit column 212 abuts the second starting end 311, the lock tooth 309 can be inserted into the lock groove 211, and the armrest 300 is in the unfolded state, that is, the armrest 300 is horizontally set; when the first limit column 111 abuts the first end end 209, the lock tooth 309 completely disengages the lock groove 211, and the armrest 300 is in the folded state.

[0048] Furthermore, the lock tooth 309 includes a first locking surface 313, and the lock slot 211 includes a second locking surface 213. The first locking surface 313 and the second locking surface 213 form an abutting engagement perpendicular to the rotational direction of the second rotary disk 204. The lock tooth 309 includes a first guide surface 314, and the lock slot 211 includes a second guide surface 214. The first guide surface 314 and the second guide surface 214 slidably engage with each other to guide the lock tooth 309 into the lock slot 211. When the lock tooth 309 is completely out of the lock slot 211, the first locking surface 313 and the second locking surface 213 are no longer in contact.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A folding treadmill, comprising a running platform, two symmetrically arranged handrails, and a column supported between the running platform and the handrails, characterized in that: The column includes a first column end and a second column end, wherein the first column end is rotatably connected to the treadmill, and the second column end is rotatably connected to the handrail to achieve folding of the column and the handrail. The treadmill includes a retractable locking pin adapted to extend into the first column end to restrict its rotation relative to the treadmill. When the handrail rotates, the locking pin is synchronously driven to exit the first column end through a pull-wire device to release the lock. The armrest includes a movably arranged handle, the handle includes a locking tooth, the second column end includes a locking groove, the locking tooth is engaged in the locking groove to limit the second column end from rotating relative to the armrest.

2. A folding treadmill according to claim 1, characterized in that: The treadmill includes a first frame, which includes two parallel first longitudinal rods. The first column end is hinged to the outer side of the first longitudinal rod, and the locking pin is arranged on the inner side of the first longitudinal rod. The locking pin is suitable for extending and retracting in a direction perpendicular to the first longitudinal rod.

3. The folding treadmill according to claim 2, characterized in that: The column is a hollow structure, one end of the pull wire device is connected to the handrail, and the other end of the pull wire device passes through the column and is connected to the locking pin arranged away from the column.

4. The folding treadmill according to claim 3, characterized in that: The first column end includes a first rotating disk arranged facing the first longitudinal rod, the first rotating disk is hinged to the first longitudinal rod, the first rotating disk includes a positioning hole and a first limit groove, a first limit column extends vertically outside the first longitudinal rod, the first limit column and the first limit groove are slidably matched to limit the maximum rotation range of the first column end to between 45° and 75°, and the first limit groove includes a first starting end and a first ending end. When the first limit column abuts the first starting end, the positioning hole is aligned with the locking pin, and the column is in an expanded state; when the first limit column abuts the first ending end, the positioning hole is staggered with the locking pin, and the column is in a folded state.

5. The folding treadmill according to claim 4, characterized in that: The first limit groove includes a limit rib arranged adjacent to the first starting end, and the limit rib is suitable for preventing the first limit column from sliding out directly from the first starting end.

6. The folding treadmill according to claim 4, characterized in that: The first longitudinal rod includes a guide groove suitable for guiding the sliding of the locking pin, the first frame includes a first cross rod supported on the two ends of the first longitudinal rod, the first cross rod is installed with a first matching bracket, the pulling wire device passes through the first matching bracket and is connected to the locking pin, and a first return spring is abutted between the first matching bracket and the locking pin, and the first return spring is suitable for driving the locking pin to be stuck into the first column end and hold it.

7. A foldable treadmill according to any one of claims 4 to 6, characterized in that: The second column end includes a second turntable, the armrest includes a third turntable, the handle and the second turntable are pivotally connected to the third turntable respectively, the handle and the second turntable are arranged in parallel or coplanar, and the second turntable is formed with the lock groove.

8. The folding treadmill according to claim 7, characterized in that: The locking tooth includes a first locking surface, and the locking groove includes a second locking surface. The first locking surface and the second locking surface form an abutting fit perpendicular to the rotation direction of the second rotating disk.

9. The folding treadmill according to claim 7, characterized in that: The third rotating disk includes a range-limiting arc surface, the second rotating disk extends a second range-limiting post facing the third rotating disk, the two ends of the range-limiting arc surface are respectively formed with a second starting end and a second ending end, the second range-limiting post and the range-limiting arc surface are slidably matched to limit the maximum rotation range of the second post end to between 45° and 75°, When the second limit column abuts the second starting end, the lock tooth can be locked in the lock groove, and the armrest is in an unfolded state; when the first limit column abuts the first ending end, the lock tooth completely disengages from the lock groove, and the armrest is in a folded state.

10. The folding treadmill according to claim 9, characterized in that: The second turntable is equipped with a second matching bracket, the wire pulling device passes through the matching bracket and is installed on the third turntable, and a second return spring is provided between the handle and the second matching bracket, and the second return spring is suitable for driving the lock tooth to engage in the lock slot and maintain it.

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